WO2006068018A1 - 記録液を収納した液体カートリッジ、液体吐出装置及び吐出方法 - Google Patents
記録液を収納した液体カートリッジ、液体吐出装置及び吐出方法 Download PDFInfo
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- WO2006068018A1 WO2006068018A1 PCT/JP2005/022980 JP2005022980W WO2006068018A1 WO 2006068018 A1 WO2006068018 A1 WO 2006068018A1 JP 2005022980 W JP2005022980 W JP 2005022980W WO 2006068018 A1 WO2006068018 A1 WO 2006068018A1
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- liquid
- ink
- propanediol
- recording
- soluble organic
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/1752—Mounting within the printer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17513—Inner structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17553—Outer structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17596—Ink pumps, ink valves
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
Definitions
- the present invention relates to a liquid cartridge containing a recording liquid, a liquid discharge apparatus, and a discharge method.
- the present invention relates to a recording liquid for printing and recording information on a printing object such as a recording paper, a liquid cartridge containing the recording liquid, and a recording liquid contained in the liquid cartridge from a discharge port.
- the present application relates to a liquid ejection apparatus and a liquid ejection method for ejecting a droplet in an object.
- a liquid ejecting apparatus for example, there is an ink jet printer apparatus that records information such as images and characters by ejecting ink that is a recording liquid onto a recording paper that is a recording target.
- This ink jet printer device has the advantages of low running cost, small device size, and easy colorization of printed images.
- Examples of the ink jet method for discharging liquid ink include a deflection method, a cavity method, a thermo jet method, a bubble jet (registered trademark) method, a thermal ink jet method, a slit jet method, and a spark jet method.
- These ink jet systems record images, characters, and the like by ejecting them from a discharge port of an ink ejection head that ejects ink in the form of minute droplets, so-called nozzles, and landing on recording paper.
- Inkjet recording printer devices may print not only on inkjet recording paper but also on plain paper such as copy paper and report paper.
- the ink used in the ink jet recording method is not only for ink jet recording paper, but also when printing on plain paper, especially when the image density is high and image blurring, specifically between different colors.
- the following inks have been proposed for use in the inkjet recording system. One of them is described in Japanese Patent Publication No. 60-23793 (Reference 1).
- the ink described in this document 1 has improved drying properties by using dialkylsulfosuccinic acid as a surfactant.
- the ink described in this document 1 has a narrow pH range where improvement in drying properties can be expected, and the improvement effect over time and the print density are lowered.
- JP-A-56-57862 proposes an ink that suppresses bleeding of an image by adding a strongly basic substance.
- the inks described in this document 2 are effective only when used on acidic paper, and are not effective on neutral paper.
- JP-A-6-157959 reference 3
- JP-A-2003-3100 reference 4
- wetting agents, surfactants, and 2-ethyl-1,3-hexanediol are contained in specific amounts, respectively. Therefore, an ink has been proposed which improves image bleeding, particularly heavy color image bleeding. Even if the inks described in this document 3 and document 4 can improve image bleeding, a sufficiently high-quality image can be obtained that is sufficiently satisfied that the back-through of the image is large and the image density is low. It is difficult.
- JP 2003-253167 A reference 5
- JP 2003-253167 A reference 5
- JP 2003-253167 A reference 5
- JP 2003-253167 A reference 5
- JP 2003-253167 A reference 5
- Japanese Patent Application Laid-Open No. 8-170041 (Document 6) describes an ink which is improved in drying property and image bleeding by containing propylene glycol monopropyl ether. With the ink described in this document 6, it is difficult to obtain a high-quality image that is sufficiently satisfactory because of its low drying effect and image bleeding effect.
- an ink jet recording type printer device for example, a printer device capable of printing on recording paper at a high speed, that is, a line type printer having an ink ejection range substantially the same as the width of the recording paper.
- a printer device capable of printing on recording paper at a high speed that is, a line type printer having an ink ejection range substantially the same as the width of the recording paper.
- the nozzles for ejecting ink are arranged in the same range as the width of the recording paper, and the ink ejection cycle for each nozzle line is extremely short. Therefore, it is necessary to use an ink having excellent permeability.
- the present invention has been proposed in view of the above-described problems, and can prevent border bleeding, mixed color solid spots, and ink back-through, which have high printing density, and can print high-quality images. It is an object to provide a recording liquid capable of enabling printing, a liquid cartridge containing the recording liquid, a liquid ejection apparatus and a liquid ejection method for performing high-quality printing using the recording liquid contained in the liquid cartridge And
- the recording liquid according to the present invention is attached to an object in the form of liquid droplets in order to perform recording on the object to be printed such as recording paper, and includes a dye, a solvent for dissolving or dispersing the dye, Measured with an ultrasonic transmission type dynamic liquid permeability measurement device ⁇ When the peak of the penetration characteristic curve for plain paper with Cobb value of 22 ⁇ 2gZm 2 specified in JIS P8140: 1998 appears
- a water-soluble organic solvent having a gap of 0.1 second or more and 0.5 second or less.
- the liquid cartridge according to the present invention is mounted on a liquid discharge head provided in a liquid discharge apparatus that performs recording by discharging a recording liquid in the form of droplets and attaching it to an object to be printed such as recording paper.
- the recording liquid is supplied to the liquid discharge head, and the recording liquid is measured with a dye, a solvent for dissolving or dispersing the dye, and an ultrasonic transmission type dynamic liquid permeability measuring device.
- Cobb value specified in 1998 is 22 ⁇ 2gZm 2
- the liquid ejection apparatus contains water-soluble organic solvents that have a peak appearance time of 0.1 seconds or more and 0.5 seconds or less in the penetration characteristic curve for plain paper.
- the liquid ejection apparatus is provided in the apparatus main body, the apparatus main body, a liquid chamber that stores the recording liquid, a supply unit that supplies the recording liquid to the liquid chamber, and at least one liquid chamber.
- a pressure generating element that presses the recording liquid stored in the liquid chamber, and a discharge port that discharges the recording liquid pressed by the pressure generating element from each liquid chamber in a droplet state toward the main surface of the object.
- a liquid cartridge that is connected to the liquid discharge head and serves as a supply source of the recording liquid to the supply unit.
- the recording liquid includes a dye, a solvent that dissolves or disperses the dye, Measured with an acoustic wave transmission type dynamic liquid permeability measuring device ⁇ The peak of the penetration characteristic curve for plain paper with Cobb value of 22 ⁇ 2gZm 2 specified in JIS P8140: 1998
- the liquid ejection method according to the present invention is provided in the apparatus main body, the apparatus main body, a liquid chamber for storing the recording liquid, a supply unit for supplying the recording liquid to the liquid chamber, and one or more in the liquid chamber.
- a pressure generating element that presses the recording liquid stored in the liquid chamber, and a discharge port that discharges the recording liquid pressed by the pressure generating element from each liquid chamber in a droplet state toward the main surface of the object.
- a liquid ejection device that is connected to the liquid ejection head and includes a liquid cartridge that serves as a supply source of the recording liquid to the supply unit, and a dye and a solvent that dissolves or disperses the dye, Penetration characteristics for plain paper with Cobb value of 22 ⁇ 2gZm 2 as defined in J IS P8140: 1998 measured with an ultrasonic transmission type dynamic liquid permeability measurement device
- Water-soluble organic solvent having a peak appearance time of 0.1 seconds or more and 0.5 seconds or less.
- measurement is performed with an ultrasonic transmission type dynamic liquid permeability measuring apparatus in a recording liquid, and the immersion is performed on plain paper having a Cobb value of 22 ⁇ 2 gZm 2 defined in ⁇ JIS P8140: 1998.
- FIG. 1 is a perspective view showing a printer apparatus to which the present invention is applied.
- FIG. 2 is a perspective view showing a head cartridge provided in the printer apparatus.
- FIG. 3 is a cross-sectional view showing a head cartridge.
- FIG. 4 is a side view showing an ultrasonic transmission type dynamic liquid permeability measuring apparatus.
- FIG. 5 is a characteristic diagram showing the relationship between the immersion time and the received signal intensity when measuring the penetration of the test liquid into the test paper using the printer device.
- FIG. 6 is a cross-sectional view showing the relationship between the ink tank and the ink discharge head in the head cartridge.
- FIG. 7 is a cross-sectional view showing the structure of the ink discharge head.
- FIG. 8A is a cross-sectional view of the ink discharge head showing a state where bubbles are generated in the heating resistor
- FIG. 8B is a cross-sectional view of the ink discharge head showing a state where ink droplets are discharged from the nozzles.
- FIG. 9 is a side view showing a part of the printer device as seen through.
- FIG. 10 is a side view showing a part of the printer device with the head cap opened.
- FIG. 1 shows an example in which the present invention is applied to an ink jet printer apparatus (hereinafter simply referred to as a printer apparatus).
- the printer apparatus 1 records ink or the like on a recording paper P traveling in a predetermined direction.
- the liquid is ejected to record and print images and characters.
- This printer device 1 is a line type printer device in which ink discharge ports (nozzles) are formed in a line shape in the width direction of the recording paper P, that is, the arrow W direction in FIG. is there.
- plain paper such as copy paper and report paper is used for the recording paper P.
- the printer apparatus 1 is an ink jet printer head cartridge (hereinafter simply referred to as a head cartridge) that ejects ink 2 that is a recording liquid for recording images, characters, and the like on a recording paper P. ) 3 and the device book to which this head cartridge 3 is mounted With 4 bodies.
- the head cartridge 3 is detachable from the apparatus main body 4, and further, an ink tank 5y which is an ink supply source for the head cartridge 3 and is a liquid cartridge for storing the ink 2 of each color. , 5m, 5c, 5k are detachably attached.
- a head cartridge 3 that can be attached to and detached from the apparatus body 4 and ink tanks 5y, 5m, 5c, and 5k that contain inks of various colors that can be attached to and detached from the head cartridge 3 are consumables. It can be exchanged.
- the tray 55 a for storing the recording paper P in a stacked manner is mounted in the tray mounting portion 6 provided on the bottom surface portion on the front side of the device body 4, thereby being stored in the tray 55 a.
- the recording paper P is fed into the device main body 4 from the paper feed port 55 of the tray mounting portion 6 and travels inside the device main body 4.
- the printer device 1 prints on the recording paper P running in the device main body 4 as characters and images corresponding to the character data and image data input from an information processing device such as a personal computer. Send it to the paper outlet 56 on the front side.
- Ink 2 serving as a recording liquid used for recording information such as characters and images includes a dye, a solvent that dissolves or disperses the dye, and a water-soluble organic solvent that improves penetration into the recording paper P. Contained.
- the coloring matter conventionally used dyes, pigments, colored polymer fine particles and the like can be used alone or in combination, but it is particularly preferable to use a water-soluble dye.
- a water-soluble dye any of acid dyes, direct dyes, basic dyes, reactive dyes, and food dyes may be used, but they are appropriately selected from the viewpoints of solubility in water, color developability, fastness, etc. It is preferable.
- yellow water-soluble dyes include CI Acid Yellow 17, CI Acid Yellow 23, CI Acid Yellow 42, CI Acid Yellow 44, CI Acid Yellow 79, CI Acid Yellow 142, CI Food Yellow 3, CI Food Yellow 4, CI Direct Yellow 1, CI Direct Yellow 12, CI Direct Yellow 24, CI Direct Yellow 26, CI Direct Yellow 33, CI Direct Yellow 44, CI Direct Yellow 50, CI Direct Yellow 86, CI Direct TATOYELO 120, CI Direct Yellow 132, CI Direct Yellow 142, CI Direct Yellow 144, CI Direct Orange 26, CI Direct Orange 29, C. I.
- Direct Orange 62 CI Direct Orange 102, CI Basic Yellow 1, CI Basic Yellow 2, CI Basic Yellow 11, CI Basic Yellow 1 3, CI Basic Yellow 14, CI Basic Yellow 15, CI Basic Yellow 19, CI Basic Yellow 21, CI Basic Yellow 23, CI Basic Yellow 24, CI Basic Yellow 25, CI Basic Yellow 28, CI Basic Yellow 29, CI Basic Yellow 32, CI Basic Yellow 36, CI Basic Yellow 40, CI Basic Yellow 41 CI Basic Yellow 45, CI Basic Yellow 49, CI Basic Yellow 51, CI Basic Yellow One 53, CI Basic Yellow 63, CI Basic Yellow 64, CI Basic Yellow 65, CI Basic Yellow 67, CI Basic Yellow Low 70, CI Basic Yellow 73, CI Basic Yellow 77, CI Basic Yellow 87, CI Basic Yellow 91, CI Reactive Yellow 1, CI Reactive Yellow 5, C.I.Reactive Yellow 11, CI Reactive Yellow 13 CI Reactive Yellow 1 14, CI Reactive Yellow 20, CI Reactive Yellow 21, CI Reactive Yellow 22, CI Reactive Yellow 25, CI Reactive Yellow 40, CI Reactive
- magenta water-soluble dyes examples include CI Acid Red 1, CI Acid Red 8, CI Acid Red 13, CI Acid Red 14, CI Acid Red 18, CI Acid Red 26, CI Acid Red 27, and CI Acid Red 35 CI Acid Red 3 7, CI Acid Red 42, CI Acid Red 52, CI Acid Red 82, CI Acid Red 87, CI Acid Red 89, CI Acid Red 92, CI Acid Red 9 7, CI Acid Red 106, CI Acid Red 111, CI Acid Red 114, C.I.
- cyan-based water-soluble dyes examples include CI Acid Blue 9, CI Acid Blue 29, CI Acid Blue 45, CI Acid Blue 92, CI Acid Blue 249, CI Direct Blue 1, CI Direct Blue 2, CI Direct Blue 6 CI Direct Blue 15, CI Direct Blue 22, CI Direct Blue 25, CI Direct Blue 71, CI Direct Blue 76, CI Direct Blue 79, CI Direct Blue 86, CI Direct Blue 87, CI Direct Blue 90, CI Direct Blue 98, CI Direct Blue 163, CI Direct Blue 165, CI Direct Tate Blue 199, CI Direct Blue 202, CI Basic Blue 1, CI Basic Benore 1, CI Basic Benore 5, CI Basic Benore 7, CI Basic Benore 9, CI Basic Benolet 21, CI Basic Bunore 22, CI Basic Blue 26, CI Basic Blue 35, CI Basic Blue 41, CI Basic Blue 45, CI Basic Blue 47, CI Basic Blue 54, CI Basic Blue 62, CI Basic Blue 65, CI Basic Blue 66, CI Basic Blue
- black water-soluble dyes examples include CI Acid Black 1, CI Acid Black 2, CI Acid Black 7, CI Acid Black 24, CI Acid Black 26, CI Acid Black 94, CI Food Black 1, CI Food Black 2, CI Direct Black 19, CI Direct Black 22, CI Direct Black 32, CI Direct Black 38, CI Direct Black 51, CI Direct Black 56, CI Direct Black 71, CI Direct Black 74, CI Direct Black 75, CI Die Rec Black 77, CI Direct Black 154, CI Direct Black 168, CI Direct Black 171, CI Basic Black 2, CI Basic Black 8, CI Reactive Black 3, CI Reactive Bra Click 4, C. I. Reactive Black 7, C. I. Reactive Black 11, C. I. Reactive Black 12, C. I. can be used Reactive Black 17, and the like.
- the content of the pigment is in the range of 1% by mass to 10% by mass, more preferably in the range of 3% by mass to 5% by mass with respect to the total mass of the ink 2.
- the content of the coloring matter is determined in consideration of the viscosity of ink 2, the drying property, the ejection stability, the coloring property, and the storage physical properties of the printed matter.
- Solvents that dissolve or disperse the above-mentioned dyes are for the purpose of imparting desired physical properties to the ink in addition to water, improving the solubility and dispersibility of the dye in water, and preventing the ink from drying.
- a conventionally known organic solvent can be used in combination.
- organic solvents that can be used as the solvent include, for example, diethylene glycol, triethylene glycol, polyethylene glycol, polypropylene glycol, 1,5 pentanediol, glycerol, 1, 2, 6 hexanetriol, 1, 2, 4 Polyhydric alcohols such as butanol and petriol, polyhydric alcohol aryl ethers such as ethylene glycol monophenyl ether and ethylene glycol monobenzyl ether, N-methyl-2-pyrrolidone, N hydroxyethyl Nitrogen-containing heterocyclic compounds such as pyrrolidone, 1,3 dimethylimidazolidinone, epsilon prolatatam, ⁇ -petitoratatona, amides such as formamide, ⁇ ⁇ ⁇ -methylformamide, ⁇ , ⁇ ⁇ ⁇ dimethylformamide, monoethanolamine, Diethanolamine, G Examples thereof include amines such as reethanolamine, monoethylamine, dimethylamine, and
- the amount of the organic solvent added is in the range of 5% by mass to 50% by mass, more preferably in the range of 10% by mass to 35% by mass with respect to the total mass of the ink 2.
- the viscosity is determined in consideration of the viscosity, drying property and ejection stability.
- Ink 2 contains a water-soluble organic solvent that improves the penetration into the recording paper sheet in addition to the solvent for dissolving or dispersing the above-described dye.
- the specific water-soluble organic solvent is the range in which the peak appearance time of the permeation characteristic curve for a recording paper sheet measured with an ultrasonic transmission type dynamic liquid permeability measurement device is 0.1 seconds or more and 0.5 seconds or less. It is a water-soluble organic solvent inside.
- the ultrasonic transmission type dynamic liquid permeability measurement device is described in, for example, the document “Paper Wettability Measurements—An evaluation of Emtec PDA”: Examensaebetel998, Processingenjor Michael Sjogren and Patent Document DP195 35 954.2. Is.
- the ultrasonic transmission type dynamic liquid permeability measuring device 90 fixes the test paper 93 between the ultrasonic transmitter 91 and the ultrasonic receiver 92 in a container filled with the test solution.
- a sample holder 94 is provided.
- the ultrasonic transmission type dynamic liquid permeability measuring device 90 is, for example, Examples thereof include a dynamic liquid permeability measuring device PDA. C2 (manufactured by Emtec Germany) and DPM (manufactured by Emco Germany).
- the ultrasonic transmission type dynamic liquid permeability measuring apparatus 90 an ultrasonic signal is transmitted from an ultrasonic transmitter 91, and this ultrasonic signal is transmitted through a test paper 93 immersed in a test solution to an ultrasonic receiver 92. Received. As a result, the ultrasonic transmission type dynamic liquid permeability measuring apparatus 90 calculates the ultrasonic transmission intensity in the process in which the test liquid penetrates the test paper 93, that is, the received signal intensity (%) received by the ultrasonic receiver 92. It can be measured over time. The ultrasonic transmission type dynamic liquid permeability measuring device 90 measures the received signal strength (%) of the ultrasonic receiver 92 over time in the process of the test liquid penetrating into the test paper 93, which is shown in FIG. A penetration characteristic curve showing the relationship between the immersion time of the test paper 93 in the test solution and the received signal strength (%) of the ultrasonic receiver 92 was obtained. Permeability characteristics can be seen.
- the peak appearance time when the peak) appears is the time required from immediately after the test paper 93 is immersed in the test solution until the ultrasonic reception intensity becomes maximum.
- the state when the received signal intensity (%) of the ultrasonic receiver 92 is maximized is that the effect of the sizing agent added to the test paper 93 is reduced, and the test liquid is cellulose fiber. It is in a state where penetration has started. Therefore, the peak appearance time of the penetration characteristic curve is the time when the test solution starts to penetrate into the cellulose fiber.
- the water-soluble organic solvent contained in ink 2 is used as a test solution, and the time for starting the penetration of plain paper as test paper 93 into cellulose fibers is measured under the following measurement conditions.
- the specific measurement conditions are as follows: a standard module of PDA. C2 (manufactured by Emtec) is used in the ultrasonic transmission type dynamic liquid permeability measurement apparatus 90, and the temperature is 25 ° C and the humidity is 60% RH.
- Use plain paper that is fully conditioned in an environmental condition of a temperature of 25 ° C and a humidity of 60% RH, and has a Cobb value of 22 ⁇ 2 g / m 2 specified in JIS P8 140: 1998. As this paper
- Ink 2 uses a water-soluble organic solvent having a peak appearance time of 0.1 second or more and 0.5 second or less as a result of measurement under the measurement conditions described above.
- a water-soluble organic solvent having a peak appearance time of 0.1 second or more and 0.5 second or less as a result of measurement under the measurement conditions described above.
- Examples of such a water-soluble organic solvent include compounds represented by the following chemical formula 1.
- the water-soluble organic solvents include compounds shown in Table 1 below.
- the water-soluble organic solvents are not limited to those shown in Table 1.
- the peak output for plain paper with a Cobb value of 22 ⁇ 2 gZm 2 specified in JIS P8140: 1998 is shown.
- the current time may be in the range of 0.1 second or more and 0.5 second or less.
- the boundary bleeding and mixed color solid spots observed when printing on plain paper are caused by the fact that the ink 2 diffuses and penetrates only along the cellulose fibers while avoiding the sizing agent.
- Ink 2 has a large penetration of the recording paper P in the depth direction if it is excessively wetted and penetrates the surface of the sizing agent in order to prevent this boundary bleeding and mixed color solids from occurring. After that, the print density is lowered, and the back-through of the image occurs.
- the surface of the fiber is sufficiently wetted and penetrates into the cellulose fiber evenly.
- Ink 2 it is possible to prevent boundary bleeding, mixed color solid spots, and back-through that do not diffuse and penetrate only along the cellulose fibers while avoiding the sizing agent.
- Ink 2 also penetrates uniformly into plain paper, resulting in high print density.
- water-soluble organic solvent having a peak appearance time of 0.1 seconds that is higher than the penetration characteristic curve
- the penetration of ink 2 into plain paper becomes too high, and it is easy to cause the show-through.
- water-soluble organic solvents whose peak appearance time is earlier than 0.1 second include 2,4-jetyl-1,5-penta Skill level of N. SO. 036 is low, 2 ethinore 1,3 Hexane level is S. SO. 036, and isopropyl alcohol is 0.03 seconds.
- the peak appearance time of the penetration characteristic curve is slower than 0.5 seconds, the penetration of ink 2 into ordinary paper will worsen and blur.
- water-soluble organic solvents whose peak appearance time is slower than 0.5 seconds include 2-methyl-2,4-pentanediol of 0.54 seconds, 1,3-butanediol of 0.56 seconds, ethylene Glycol is 0.59 seconds, Glycerinka SO. 69 is low, 2 P P-Ridon force SO. 62 is low.
- water-soluble organic solvents whose peak appearance time in the penetrating characteristic curve is slower than 0.5 seconds increase the ink penetration into plain paper as described in Japanese Patent No. 2894568 and improve the printing quality.
- alkylene glycols having 7 carbon atoms such as 1,7 heptanediol and 3,3 dimethyl-1,5 pentanediol. 1,7 heptanediol has a peak appearance time of 0.53 seconds and 3,3 dimethyl-1,5 pentanediol has a time of 0.52 seconds.
- ink 2 contains a water-soluble organic solvent with a peak appearance time of 0.1 seconds or more and 0.5 seconds or less in the penetrability characteristic curve, so that boundary blotting, mixed color solid spots, It is possible to prevent strikethrough.
- the content of the water-soluble organic solvent in the ink 2 is 0.1 to 10% by mass, more preferably 0.5 to 7% by mass. If the content is less than 0.1% by mass, the effect of addition cannot be obtained. On the other hand, if the content is more than 10% by mass, it may cause an increase in viscosity and undissolved content, which may affect intermittent ejection properties.
- the content of the water-soluble organic solvent is most preferably set so that the 0-second dynamic surface tension of the ink 2 is in the range of 35 mN / m to 40 mN / m.
- Ink 2 has a 0 second dynamic surface tension in the range of 35 mNZm or more and 40 mNZm or less. Omission can be further prevented. Specifically, it is determined depending on the combination with other solvents used together.
- 2-ethyl-2-propyl-1,3-propanediol and 2-propyl-1,4-butanediol are 0.1 to 1%, 2-methyl-2-butyl 1% to 3% for chilly 1,3 propanediol, 2% to 10% for 2-methyl-2-propyl 1,3 propanediol, 2,2 jetyl 1,3 propanediol and 2-methyl-2-ethyl-1,3 propanediol It is.
- t * is the time between t force 0 and 7 * m ,
- n is a constant.
- y is the surface tension of the solvent
- t * is the time when ⁇ is halfway between ⁇ and ⁇
- ⁇ is a constant.
- the 0 second dynamic surface tension excludes components having surface active ability from ink 2, such as pigments, preservatives, fungicides, dispersants, penetrants, and surfactants described later. It can be determined by measuring the static surface tension of water and organic solvents.
- the dynamic surface tension of the solvent of ink 2 is continuously measured by changing the so-called bubble speed, for example, by the maximum bubble pressure method, specifically, the bubble speed is 20 bubbles Z seconds to 0.1.
- the dynamic surface tension curve is almost horizontal, and the dynamic surface tension curve does not drop significantly even if the bubble velocity decreases.
- the ink 2 that has landed on the recording paper P is soaked in the depth direction of the recording paper P, that is, the thickness direction of the recording paper P, and the print density decreases. Ink 2 may ooze out to the back side of recording paper P.
- the 0-second dynamic surface tension of ink 2 exceeds 40 mNZm, the recording paper P may penetrate slowly in the thickness direction and may cause fusing. In particular, when the dynamic surface tension force is 0 sec.
- the ink 2 further includes an ethylene oxide adduct of 2-ethyl-2-butyl-1,3-propanediol represented by the following chemical formula 2 as a surfactant (hereinafter referred to as “ EBPD—EO ”)) and a static surface tension of 34 m NZm or more and 39 mNZm or less, it is possible to print even higher quality.
- EBPD—EO ethylene oxide adduct of 2-ethyl-2-butyl-1,3-propanediol represented by the following chemical formula 2 as a surfactant
- Each is an integer from 0 to 10,
- the additive amount of EBPD-EO is in the range of 0.05% to 5% by mass, more preferably in the range of 0.1% to 2% by mass, with respect to the total mass of ink 2. If the addition amount is less than 0.05% by mass, the addition effect cannot be obtained. On the other hand, when the amount exceeds 5% by mass, the viscosity of the ink 2 may be excessively increased. On the contrary, the ejection stability may be impaired and the permeability to the recording paper P may be delayed.
- ink 2 For ink 2, if the static surface tension is less than 34 mNZm, landing on the recording paper P will soak in the depth direction of the recording paper P, that is, the thickness direction of the recording paper P, and the print density will decrease. Ink 2 may ooze out to the back side of recording paper P. If the static surface tension exceeds 45 mNZm, the recording paper P will penetrate slowly in the thickness direction and feathering may occur. The surface tension is measured by the Wilhelmi (plate) method.
- a conventionally known surfactant can be added to the ink 2 as long as the above-described effects of the water-soluble organic solvent and the surfactant are not impaired.
- conventionally known surfactants include, for example, special phenol-type nonionic surfactants such as polycyclic phenol ethoxylates, ethylene oxide adducts of glycerite, polyethylene glycolololeate, polyoxyalkylene tarolate, Ester-type nonionic surfactants such as sorbitan laurinole ester, sorbitan oleyl ester, polyoxyethylene sorbitan oleyl ester, coconut oil fatty acid diethanol amide, polyoxyethylene ester Amide-type nonionic surfactants such as coconut oil fatty acid monoethanol amide, acetylene glycol and its ethylene oxide adducts, alcohol sulfate sodium salt, higher alcohol sulfate sodium salt, polyoxyethylene alkylphenol ether sulfate
- the ink 2 is, for example viscosity modifiers, P H adjusting agents, preservatives, anti ⁇ , it is also possible to add a fungicide.
- viscosity modifiers and pH adjusters include proteins such as gelatin and casein, natural rubbers such as gum arabic, cellulose derivatives such as methylcellulose, carboxymethylcellulose, and hydroxymethylcellulose, lignin sulfonate, shellac, and the like.
- antiseptics examples include benzoic acid, dichlorophene, hexaclonal phene, sorbic acid, p-hydroxybenzoic acid ester, ethylenediammine tetraacetic acid (EDTA), and the like. These can be used alone or in combination.
- the ink 2 as described above includes the yellow ink stored in the ink tank 5y, the magenta ink stored in the ink tank 5m, the cyan ink stored in the ink tank 5c, and the black ink. Housed in power ink tank 5k.
- the head cartridge 3 for printing on the recording paper P is mounted from the upper surface side of the apparatus body 4, that is, from the direction of arrow A in FIG. Print.
- the head cartridge 3 discharges the ink 2 described above into fine particles by the pressure generated by the pressure generating means using, for example, an electrothermal conversion type or an electromechanical conversion type, and the liquid is applied to the main surface of the recording paper P. Spray ink 2 that has been dropped.
- the head cartridge 3 has a cartridge main body 21, and ink tanks 5y, 5m, 5c, 5k which are containers filled with the ink 2 in the cartridge main body 21. Is installed.
- the ink tanks 5y, 5m, 5c, and 5k are also simply referred to as the ink tank 5.
- the ink tank 5 that can be attached to and detached from the head cartridge 3 has a tank body 11 that is molded by injection molding a resin material such as polypropylene having strength and ink resistance.
- the tank body 11 is formed in a substantially rectangular shape having substantially the same dimensions as the width direction of the recording paper P that uses the longitudinal direction.
- the tank body 11 constituting the ink tank 5 includes an ink storage unit 12 that stores the ink 2, and an ink supply unit 13 that sends the ink 2 from the ink storage unit 12 to the cartridge body 21 of the head cartridge 3. And are provided.
- the ink storage unit 12 is provided with an external communication hole 14 that serves as a hole for taking in external air at the center of the upper surface.
- the ink storage unit 12 can take air into the inside through an air introduction tube 15 provided to extend inward from the external communication hole 14.
- the air corresponding to the decrease in the ink 2 in the ink containing portion 12 is The ink is taken into the ink containing portion 12 from the external communication hole 14 through the air introduction tube 15.
- the ink tank 5 The ink reservoir 16 temporarily stores the ink 2 that has flowed back from the ink reservoir 12 through the air introduction pipe 15, so that the ink 2 can be discharged again without the ink 2 leaking outside from the external communication hole 14. Can be returned to the side.
- the ink supply unit 13 is provided at a substantially lower central portion of the ink storage unit 12.
- the ink supply unit 13 is a substantially protruding nozzle that communicates with the ink storage unit 12, and the tip of the nozzle is fitted into a connection unit 27 of the head cartridge 3 described later, whereby the tank of the ink tank 5 is filled. Connect the main body 11 and the cartridge main body 21 of the head cartridge 3.
- the ink supply unit 13 is provided with a supply port for supplying the ink 2 to the cartridge body 21 side on the bottom surface side of the ink tank 5.
- a valve mechanism that opens and closes the supply port is provided on the bottom surface of the ink tank 5. The supply port prevents the ink 2 from leaking out of the ink tank 5 by the valve closing the supply port before the ink tank 5 is attached to the cartridge body 21.
- the valve is separated from the supply port, the supply port is opened, and the ink 2 can be supplied to the head cartridge 3 side.
- the ink tank main body 11 has a locking projection 17 and an engaging step 18 which are fixing means for fixing to a mounting portion 22 of the cartridge main body 21 described later.
- the locking protrusion 17 is a protrusion having a side surface force on the other side in the long side direction of the ink tank 5 formed so as to protrude, and is engaged with a latch lever 25 of the mounting portion 22 described later.
- the engagement step portion 18 is a step portion formed on one end side in the long side direction of the ink tank 5 and is engaged with an engaged portion 26 formed on a side surface of the mounting portion 22 described later.
- the ink tank 5 is fixed and attached to the cartridge body 21 by the locking protrusion 17 and the engagement step portion 18.
- the ink tank 5 configured as described above includes, for example, a remaining amount detection unit for detecting the remaining amount of the ink 2 in the ink storage unit 12, and ink tanks 5y, 5m, 5c, 5k. It has an identification part to identify
- the head cartridge 3 in which the ink tanks 5y, 5m, 5c, and 5k containing the yellow, magenta, cyan, and black inks 2 configured as described above are mounted will be described.
- the ink tank 5 and cartridge The cartridge body 21 is provided with mounting portions 22y, 22m, 22c, and 22k (hereinafter also simply referred to as the mounting portion 22) and the ink 2 to which the ink tank 5 is mounted.
- An ink discharge head 23 for discharging and a head cap 24 for protecting the ink discharge head 23 are provided.
- the mounting portion 22 to which the ink tank 5 is mounted is formed in a substantially concave shape, and the four ink tanks 5 are stored side by side in a direction substantially perpendicular to the width direction of the recording paper P, that is, in the running direction of the recording paper P. .
- a partition wall 22a for partitioning each color ink tank 5y, 5m, 5c, 5k is provided between the ink tanks 5y, 5m, 5c, 5k for each color, as shown in FIG. Yes.
- a latch lever 25 is provided on the side surface of the ink tank 5 that faces the locking protrusion 17, and a locking hole formed in the latch lever 25 is provided. The locking projection 17 is locked to 25a.
- the mounting portion 22 is provided with an engaged portion 26 on a side surface facing the engaging step portion 18 of the ink tank 5, and the engaged portion 26 is engaged with the engaging step portion 18.
- the mounting portion 22 is configured such that the engagement protrusion 17 of the ink tank 5 and the engagement hole 25a of the latch lever 25 are engaged, and the engagement step portion 18 and the engaged portion 26 are engaged with each other. 2 is fixed and attached.
- the connecting portion 27 includes an ink supply path that supplies the ink 2 to the ink discharge head 23 that discharges the ink 2 provided on the bottom surface of the cartridge body 21 from the ink supply portion 13 of the ink tank 5 attached to the attachment portion 22. Become.
- the connecting portion 27 includes an ink reservoir portion 31 for storing the ink 2 supplied from the ink tank 5, a seal member 32 for sealing the ink supply portion 13 connected to the connecting portion 27, and the ink 2 A filter 33 for removing impurities therein, and a valve mechanism 34 for opening and closing the supply path to the ink discharge head 23 side.
- the ink reservoir 31 is a space that is connected to the ink supply unit 13 and stores the ink 2 supplied from the ink tank 5.
- the seal member 32 is a member provided at the upper end of the ink reservoir 31, and the ink supply part 13 of the ink tank 5 is connected to the ink reservoir 31 of the connection part 27.
- the ink reservoir 31 and the ink supply unit 13 are sealed so that the ink 2 does not leak to the outside.
- the filter 33 removes dust such as dust mixed in the ink 2 when the ink tank 5 is attached or detached, and is provided downstream of the ink reservoir 31.
- valve mechanism 34 when ink 2 is discharged from a nozzle 42a of the ink discharge head 23 described later, a valve (not shown) is opened by the negative pressure generated on the ink discharge head 23 side, and the ink storage portion 12 of the ink tank 5 is opened. Ink 2 is supplied from the ink to the ink discharge head 23. Then, when the ink 2 is supplied from the ink container 12 of the ink tank 5 to the ink discharge head 23 and the pressure on the ink discharge head 23 side returns to the steady state, the valve mechanism 34 closes the valve and closes the ink tank.
- the ink discharge head 23 is disposed along the bottom surface of the cartridge main body 21 and is a nozzle 42a described later, which is an ink discharge port for discharging the ink droplet i supplied from the connection portion 27.
- a substantially line shape is formed in the width direction of the recording paper P, that is, the arrow W direction in FIG.
- the head cap 24 is a cover provided to protect the ink discharge head 23, and is retracted from the ink discharge head 23 during a printing operation.
- the head cap 24 includes a pair of engagement protrusions 24a provided in the opening and closing directions at both ends in the direction of arrow W in FIG. 2, and excess ink 2 attached to the discharge surface 23a of the ink discharge head 23 provided in the longitudinal direction.
- a cleaning roller 24b In the head cap 24, the engaging protrusion 24a extends on the ejection surface 23a of the ink ejection head 23 in a direction substantially orthogonal to the arrow W direction in FIG.
- the cleaning roller 24b rotates while contacting the discharge surface 23a of the ink discharge head 23, so that the excess ink 2 is sucked and the discharge surface 23a of the ink discharge head 23 is discharged.
- a highly hygroscopic member specifically, a sponge, a nonwoven fabric, a woven fabric, or the like is used.
- the head cap 24 closes the ejection surface 23a so that the ink 2 in the ink ejection head 23 is not dried when the printing operation is not performed.
- the ink discharge head 23 includes a circuit board 41 serving as a base, a nozzle sheet 42 formed with a plurality of nozzles 42a, and a gap between the circuit board 41 and the nozzle sheet 42 for each nozzle 42a.
- an ink flow path 46 for supplying the ink 2 thereto.
- the circuit board 41 forms a control circuit having a logic IC (Integrated Circuit) and a driver transistor on a semiconductor wafer made of silicon or the like, and forms an upper surface portion of the ink liquid chamber 44.
- a logic IC Integrated Circuit
- the nozzle sheet 42 is a sheet-like member having a thickness of about 10 m to 15 m, a nozzle that is reduced in diameter toward the discharge surface 23 a and becomes a discharge port having a diameter of about 20 ⁇ m on the discharge surface 23 a side. 42a is formed, and the circuit board 41 and the film 43 are arranged opposite to each other to form the lower surface portion of the ink liquid chamber 44.
- the film 43 is made of, for example, an exposure curing type dry film resist, and is formed so as to surround each nozzle 42a except for the portion communicating with the connection portion 27 described above. Further, the film 43 forms a side surface portion of the ink liquid chamber 44 by being interposed between the circuit board 41 and the nozzle sheet 42.
- the ink liquid chamber 44 is surrounded by the circuit board 41, the nozzle sheet 42, and the film 43, thereby forming a pressurizing space for pressurizing the ink 2 supplied to each nozzle 42a.
- the heating resistor 45 is disposed on the circuit board 41 facing the ink liquid chamber 44 and is electrically connected to a control circuit or the like provided on the circuit board 41. And this heating resistance The body 45 generates heat by being controlled by a control circuit or the like, and heats the ink 2 in the ink liquid chamber 44.
- the ink flow path 46 is connected to the connection portion 27 and is a supply portion that supplies the ink 2 from the ink tank 5 connected to the connection portion 27 to the ink liquid chamber 44. That is, the ink flow path 46 and the connection portion 27 are communicated with each other. As a result, the ink 2 supplied from the ink tank 5 flows into the ink flow path 46 and fills the ink liquid chamber 44.
- One ink discharge head 23 described above is provided with a heating resistor 45 for each ink liquid chamber 44, and the ink liquid chamber 44 provided with the heating resistor 45 is provided for each color ink tank 5 with 100 to 5 000. About one is provided.
- the heating resistor 45 of each ink liquid chamber 44 is appropriately selected according to a command from the control unit, which will be described later, to generate heat, and the generated heating resistor 45 corresponds to the generated heating resistor 45.
- the ink 2 in the ink liquid chamber 44 is ejected as ink droplets i from the nozzles 42a corresponding to the ink liquid chamber 44.
- the control circuit of the circuit board 41 drives and controls the heating resistor 45, and a pulse current is applied to the selected heating resistor 45 for about 1 to 3 microseconds, for example. Supply.
- the heating resistor 45 is rapidly heated.
- bubbles b are generated in the ink 2 in the ink liquid chamber 44 in contact with the heating resistor 45.
- the ink discharge head 23 as shown in FIG. 8B, the ink 2 is pressurized while the bubble b expands in the ink liquid chamber 44, and the pushed ink 2 becomes the ink droplet i. Discharged from nozzle 42a.
- the ink discharge head 23 after the ink droplet i is discharged, the ink 2 is supplied to the ink liquid chamber 44 through the connection portion 27, thereby returning to the state before the discharge again.
- the apparatus main body 4 constituting the printer apparatus 1 to which the head cartridge 3 configured as described above is mounted will be described with reference to the drawings.
- the apparatus main body 4 holds the head force cartridge mounting portion 51 to which the head cartridge 3 is mounted, and the head cartridge 3 is held and fixed to the head cartridge mounting portion 51.
- Head cartridge holding mechanism 52 for adjusting the position
- head cap opening / closing mechanism 53 for opening / closing the head cap
- feeding / discharging mechanism 54 for feeding / discharging recording paper P
- feeding / discharging mechanism 54 It has a paper feed port 55 and a paper discharge port 56 through which recording paper P is output from the paper supply / discharge mechanism 54.
- the head cartridge mounting portion 51 is a concave portion in which the head cartridge 3 is mounted, and prints on the running recording paper according to the data, so that the ejection surface 23a of the ink ejection head 23 and the paper surface of the running recording paper P are mutually connected.
- the head cartridge 3 is mounted so as to be substantially parallel.
- the head cartridge 3 may need to be replaced due to ink clogging or the like in the ink discharge head 23.
- the head cartridge 3 is a consumable item that does not need to be replaced like the ink tank 5 but is a consumable part.
- a head cartridge holding mechanism 52 is detachably attached to the head 51.
- the head cartridge holding mechanism 52 is a mechanism for detachably holding the head cartridge 3 on the head cartridge mounting portion 51, and a knob 52a provided on the head cartridge 3 is provided in the locking hole 52b of the apparatus body 4.
- the head cartridge 3 is positioned, held, and fixed so as to be crimped to a reference surface 4a provided in the apparatus main body 4 by being engaged with an urging member such as a panel not shown.
- the head cap opening / closing mechanism 53 has a drive unit that opens and closes the head cap 24 of the head cartridge 3.
- the head cap 24 is opened and the ink discharge head 23 is exposed to the recording paper P.
- the head cap 24 is closed to protect the ink discharge head 23.
- the paper feeding / discharging mechanism 54 has a drive unit that transports the recording paper P, transports the recording paper P supplied from the paper feeding port 55 to the ink discharge head 23 of the head cartridge 3, and is discharged from the nozzle 42a.
- the ink droplet i has landed, and the printed recording paper P is conveyed to the paper outlet 56 and discharged outside the apparatus.
- the paper supply / discharge mechanism 54 pulls out the recording paper P from the tray 55a by the paper supply roller 71, and the recording paper P of the recording paper P ejected by the pair of separation rollers 72a and 72b rotating in opposite directions.
- the paper supply port 55 is an opening that supplies the recording paper P to the paper supply / discharge mechanism A plurality of recording sheets P can be stacked on the tray 55a or the like.
- the paper discharge roller 56 is an opening through which ink droplets i land and discharge the printed recording paper P.
- the printer apparatus 1 In the printer apparatus 1 having the above-described configuration, printing is controlled by a control circuit (not shown in detail) that controls printing based on print data input from an information processing apparatus provided outside.
- the printer apparatus 1 includes a head cap opening / closing mechanism 53 of the above-described apparatus main body 4 provided in the control circuit, a paper feeding / discharging mechanism 54, a drive of a belt raising / lowering mechanism for raising and lowering the conveying belt 74, and an ink ejection head 23 It is controlled by a control unit that controls the supply of the current supplied to each.
- the printer device 1 When printing is performed, the printer device 1 performs printing by the control unit as follows.
- the user operates the operation button 3a provided on the apparatus main body 4 to instruct the controller to start printing.
- the printer 1 when an instruction to start printing is given to the control unit, the head cap opening / closing mechanism 53, the paper feeding / discharging mechanism 54, the belt lifting / lowering mechanism, etc. are driven by the control signal of the control unit, as shown in FIG. The printer is ready for printing.
- the head cap opening / closing mechanism 53 drives the drive unit to move the head cap 24 toward the tray 55a with respect to the head cartridge 3. Thereby, in the printer apparatus 1, the nozzle 42a of the ink ejection head 23 is exposed to the outside.
- the paper supply / discharge mechanism 54 drives the drive unit to cause the recording paper P to travel. Specifically, the paper feeding / discharging mechanism 54 pulls out the recording paper P from the tray 55a by the paper feeding roller 71, and the recording paper P drawn by the pair of separation rollers 72a and 72b rotating in opposite directions to each other. Then, the recording paper P is transported to the transport belt 74, and the recording paper P transported to the transport belt 74 is transported to a position facing the ejection surface 23a.
- the belt lifting mechanism raises the conveyor belt 74 so that the conveyor belt 74 is substantially parallel to the ejection surface 23a of the ink ejection head 23.
- the current supplied to the heating resistor provided in the ink discharge head 23 is controlled by the control unit based on the print data input from the external information processing apparatus.
- the heating resistor is heated based on the print data input from the information processing device, and the recording paper P conveyed to the printing position is not subjected to printing.
- Ink droplets i are ejected and landed from the nozzle 42a to print images, characters, etc. made up of ink dots.
- the printer device 1 when the ink droplet i is ejected from the nozzle 42a, the same amount of ink 2 as the amount of ejected ink droplet i is transferred from the ink tank 5 through the connecting portion 27 into the ink liquid chamber 44. To be replenished. In the ink discharge head 23, the ink 2 is replenished from the ink tank 5 into the ink liquid chamber 44 every time the ink droplet i is discharged.
- the conveyance belt 74 of the paper supply / discharge mechanism 54 is driven by the control unit, and the recording paper P that has been printed is discharged from the paper discharge port 56.
- the nozzles 42 a that discharge the ink 2 are arranged in parallel in the width direction of the recording paper P for each color, and the nozzles 42 a arranged in parallel with the width of the recording paper P when printing is performed. Since the ink 2 is ejected for each row, the head does not move in the width direction of the recording paper P unlike a serial type printer. As a result, in the printer apparatus 1, the ejection interval of the ink 2 in each row is shortened, and the printing time per P-sheets of recording paper is shorter than that of the serial type printer apparatus.
- the peak appearance time of the permeation characteristic curve for plain paper having a Cobb value of 22 ⁇ 2 gZm 2 specified in JIS P8140: 1998 in the ink 2 used is 0.1.
- An organic water-soluble solvent is contained for at least 2 seconds and at most 0.5 seconds.
- the organic water-soluble solvent described above is contained in the ink 2, it is possible to prevent boundary bleeding, mixed color solid spots, and show-through through the print density. Therefore, in this printer device 1, even if it is paper for exclusive use of ink jet recording, the ink 2 can penetrate uniformly, and it is possible to prevent border blurring, mixed color solid spots, and back-through where the printing density is high, and a high-quality image can be obtained. Can be formed.
- the printer apparatus 1 adjusts the addition amount of the organic water-soluble solvent described above, Since the second dynamic surface tension is in the range of 35 mNZm or more and 40 mNZm or less, it is possible to form an image in which border bleeding, mixed color solid spots, and back-through are prevented as the printing density is higher.
- the ink 2 contains E BPD-EO as a surfactant in addition to the water-soluble organic solvent, and the static surface tension is 34 mNZm or more and 39 mNZm or less. High-quality printing can be performed.
- the above is the force which explained the example which applied the present invention to the printer device
- the present invention is not limited to the above example, but can be widely applied to other liquid ejecting apparatuses which eject liquid.
- the present invention can also be applied to a liquid ejection device that includes an element and includes ejection means that can control the ejection direction by supplying energy to each pressure generating element at different energy or at different timings.
- an electrothermal conversion method is employed in which the ink 2 is heated from one nozzle 42 2a while being heated by a single heating resistor 45.
- the present invention is not limited to such a method.
- Ink is electromechanically transferred from nozzles by electromechanical transducers such as piezoelectric elements such as piezo elements as described in Japanese Patent Application No. 65559, Japanese Patent Application Laid-Open No. Sho 62-160243, and Japanese Patent Application Laid-Open No. Hei 2-270561.
- An electromechanical conversion method for discharging may be used.
- the force described by taking the line type printer device 1 as an example is not limited to this.
- the serial type in which the ink head moves in a direction substantially perpendicular to the traveling direction of the recording paper P can also be applied to other liquid ejection devices.
- a yellow ink was first prepared.
- 3 parts by mass of Acid Yellow 142 as a pigment 3 parts by mass of water as a solvent, 10 parts by mass of glycerin as another solvent, 8 parts by mass of 2 pyrrolidone, P8140: Peak appearance time for plain paper with a Cobb value of 22 ⁇ 2gZm 2 specified in 1998
- a black ink was prepared.
- 4 parts by weight of food black 2 as a pigment 4 parts by weight of food black 2 as a pigment, 77 parts by weight of water as a solvent, 10 parts by weight of glycerin as another solvent, 8 parts by weight of 2 pyrrolidone, and penetrating
- the characteristic curve peak appearance time is 0.11 sec.
- 2 ethyl 2-propyl 1,3 propanediol (a in Table 1) is mixed with 1 part by mass, and then a main bran filter with a pore size of 0.0 (product name) manufactured by Millipore. : Millex
- Sample 2 was the same as Sample 1 except that 2-methyl-2-butyl-1,3-propanediol (b in Table 1) with a peak appearance time of 0.13 seconds was used in a water-soluble organic solvent. A yellow ink and a black ink were respectively adjusted.
- the water-soluble organic solvent is 3 parts by mass of 2-methyl-2-propyl-1,3 propanediol (c in Table 1) with a peak appearance time of 0.24 sec.
- Yellow ink and black ink were prepared in the same manner as Sample 1, except that the total amount was 100 parts by mass.
- the water-soluble organic solvent is 4 parts by mass of 2,2 jetyl-1,3 propanediol (d in Table 1) with a peak appearance time of 0.40 sec.
- the yellow ink and ink are the same as in Sample 1 except that the parts are mass parts. Each rack ink was adjusted.
- the water-soluble organic solvent is 4 parts by mass of 2-methyl-2-ethyl-1,3-propanediol (e in Table 1) with a peak appearance time of 0.50 seconds in the permeation characteristic curve, and water is reduced to a total of 100.
- the yellow ink and the black ink were respectively adjusted in the same manner as in Sample 1 except that the mass was changed.
- the water-soluble organic solvent is 3 parts by mass of 2-methyl-2-propyl-1,3-propanediol (table 1 in Table 1) with a peak appearance time of 0.24 seconds, and as a surfactant.
- Yellow ink and black as in Sample 1 except that 0.5 parts by mass of EBPD—EO (m + n 2) shown in Chemical Formula 2 is added and the water is reduced to a total of 100 parts by mass. Each of the system inks was adjusted.
- sample 10 a yellow ink was used in the same manner as in sample 1 except that the water-soluble organic solvent was changed to 1 part by weight of 2,4-jetyl-1,5-pentanediol with a peak appearance time of 0.036 seconds. And black ink were prepared.
- Sample 13 is a sample except that the water-soluble organic solvent is 4 parts by mass of 1,7-heptanediol with a peak appearance time of 0.53 seconds and the total amount of water is reduced to 100 parts by mass. In the same manner as in 1, yellow ink and black ink were adjusted.
- the water-soluble organic solvent is used as 4 parts by mass of 3,3-dimethyl-1,5-pentanediol with a peak appearance time of 0.52 seconds, and the amount of water is reduced to a total of 100 parts by mass. Except for this, yellow ink and black ink were prepared in the same manner as Sample 1.
- the water-soluble organic solvent is 4 parts by mass of 1,7-heptanediol with a peak appearance time of 0.53 seconds in the permeation characteristic curve.
- Add yellow ink and black ink as in sample 1 except that 0.5 parts by weight of BPD-EO (m + n 2) is added and the water is reduced to a total of 100 parts by weight. Each was adjusted.
- the water-soluble organic solvent is 4 parts by mass of 1,7-heptanediol with a peak appearance time of 0.53 seconds, and Olfine E1010 (acetylene glycol nonionic surfactant) is used as the surfactant.
- Yellow and black inks were prepared in the same manner as Sample 1, except that 0.5 parts by mass of Nissin Chemical Industry Co., Ltd.) was added and the total amount of water was reduced to 100 parts by mass.
- the ink density of each sample was evaluated for print density, boundary bleeding, mixed color solid spots, and image see-through.
- the evaluation results are shown in Table 2 below.
- the print density was evaluated as follows. Fill the ink tank with the black ink of each sample, install it in the head cartridge, and use plain paper Mitsubishi paper copy paper (trade name: Mitsubishi PPC paper) as the recording paper in the line-type inkjet printer. A black solid was printed on the recording paper! /, And the obtained image! / was measured with a Macbeth optical densitometer (TR924).
- the boundary bleeding was evaluated as follows. A line type ink cartridge filled with yellow ink and black ink of each sample and mounted in the head cartridge. Using a copy paper (trade name: Mitsubishi PPC paper) manufactured by Mitsubishi Paper Industries, which is a plain paper as the recording paper in the inkjet printer, a solid print is made with each color adjacent to the recording paper, and each color in the printed image is printed. The degree of bleeding at the boundary was visually observed.
- a copy paper (trade name: Mitsubishi PPC paper) manufactured by Mitsubishi Paper Industries, which is a plain paper as the recording paper in the inkjet printer
- the mixed color solid spots were evaluated as follows. Copy paper (trade name: Mitsubishi PPC paper) made of plain paper made of plain paper as a recording paper in a line-type inkjet printer device filled with a yellow ink and black ink of each sample and mounted in a head cartridge. ), 80% density solid printing was performed so that each color was superimposed on the recording paper, and the uniformity of the color density in the printed image, that is, the presence or absence of color unevenness was visually observed.
- Copy paper trade name: Mitsubishi PPC paper
- plain paper made of plain paper made of plain paper as a recording paper in a line-type inkjet printer device filled with a yellow ink and black ink of each sample and mounted in a head cartridge.
- 80% density solid printing was performed so that each color was superimposed on the recording paper, and the uniformity of the color density in the printed image, that is, the presence or absence of color unevenness was visually observed.
- the image show-through was evaluated as follows.
- the printed image produced by the above-described evaluation of boundary bleeding was visually observed from the back side of the printing surface, and the degree of image omission and ink bleeding were evaluated.
- a 0 second dynamic surface tension and a static surface tension at 25 ° C. were measured using a surface tension meter (CBVP-Z) manufactured by Kyowa Interface Science Co., Ltd.
- CBVP-Z surface tension meter
- the static surface tension values are measured values after black and yellow ink adjustment.
- the boundary blur indicates that there is no blur of each color at the boundary, and there is no problem with the image quality.
- a mark with a small amount of blurring of each color at the boundary is indicated by a circle
- a mark with blurring of each color that degrades the image quality at the boundary is indicated by a triangle
- the image show-through in Table 2 the image with few show-throughs is indicated by ⁇ , the image with show-through but no problem in quality is indicated by ⁇ , and partial show-through, for example, Ink spots that appear to bleed out and become spotted are marked with a triangle, and the entire image is Show what is marked with an X.
- sample 1 to sample 9 contained in the ink !, the peak appearance time of the water-soluble organic solvent permeation characteristic curve was 0.1 second or more, 0.5 Since it is less than 2 seconds, it is possible to prevent the ink from uniformly penetrating the surface of the recording paper fiber and the sizing agent, and to diffuse and penetrate only along the fiber. In Sample 1 to Sample 9, it was possible to prevent border bleeding, mixed color solid spots, and show-through, where there was little show-through in the boundary portion and bleeding of each color and color unevenness. In Samples 1 to 9, the print density was good because the ink penetrated uniformly into the recording paper.
- Sample 3 In Sample 3, Sample 4, Sample 7, and Sample 8, the 0 second dynamic surface tension is 35 mNZm or more and 40 mNZm or less, and Sample 3 has a static surface tension in the range of 34 mNZm or more and 39 mNZm or less.
- Sample 7 and Sample 8 contain EBPD-EO as a surfactant and have a static surface tension in the range of 34 mN / m or more and 39 mN / m or less. Mixed color sticky spots and behind-the-scenes were prevented. As a result, Sample 3, Sample 7, and Sample 8 were good in all evaluations, including print density, border blur, mixed color solid spots, and image strike-through.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US11/722,588 US20070247496A1 (en) | 2004-12-24 | 2005-12-14 | Recording Liquid Containing Liquid Cartridge and Liquid Emitting Apparatus and Method |
EP20050816690 EP1847574A1 (en) | 2004-12-24 | 2005-12-14 | Liquid cartridge containing recording liquid, liquid delivery apparatus and delivery method. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-374465 | 2004-12-24 | ||
JP2004374465A JP2006182800A (ja) | 2004-12-24 | 2004-12-24 | 記録液、液体カートリッジ、液体吐出装置及び液体吐出方法 |
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WO2006068018A1 true WO2006068018A1 (ja) | 2006-06-29 |
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PCT/JP2005/022980 WO2006068018A1 (ja) | 2004-12-24 | 2005-12-14 | 記録液を収納した液体カートリッジ、液体吐出装置及び吐出方法 |
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US (1) | US20070247496A1 (ja) |
EP (1) | EP1847574A1 (ja) |
JP (1) | JP2006182800A (ja) |
KR (1) | KR20070089815A (ja) |
CN (1) | CN101128549A (ja) |
TW (1) | TW200640703A (ja) |
WO (1) | WO2006068018A1 (ja) |
Cited By (1)
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JP2008013598A (ja) * | 2006-07-03 | 2008-01-24 | Sony Corp | 記録液及び液体吐出方法 |
Families Citing this family (12)
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EP1783182B1 (en) | 2004-10-22 | 2009-12-23 | Seiko Epson Corporation | Inkjet recording ink |
JP4815818B2 (ja) * | 2005-02-21 | 2011-11-16 | セイコーエプソン株式会社 | 水性インク |
US7569104B2 (en) * | 2005-05-17 | 2009-08-04 | Eiko Epson Corporation | Ink for ink-jet recording |
JP4905629B2 (ja) * | 2005-05-17 | 2012-03-28 | セイコーエプソン株式会社 | インクジェット記録用インク |
JP2007262109A (ja) * | 2006-03-27 | 2007-10-11 | Seiko Epson Corp | インクジェット記録用インク |
ATE422764T1 (de) * | 2005-11-18 | 2009-02-15 | Nokia Siemens Networks Gmbh | Verfahren zum betrieb einer vorrichtung in einem funkzugangsnetz eines funkkommunikationssystems sowie funkzugangsnetz und vorrichtung |
JP5020700B2 (ja) * | 2007-05-11 | 2012-09-05 | キヤノン株式会社 | インクジェット記録用インクタンク |
JP5932197B2 (ja) * | 2007-05-11 | 2016-06-08 | キヤノン株式会社 | 画像形成方法、及び画像形成装置 |
JP6123425B2 (ja) * | 2013-03-29 | 2017-05-10 | セイコーエプソン株式会社 | インクセットおよびインクジェット記録方法 |
CN105181550A (zh) * | 2015-08-28 | 2015-12-23 | 安徽省三环纸业(集团)有限公司 | 一种接装胶渗透性能的测定方法 |
JP6651806B2 (ja) * | 2015-11-20 | 2020-02-19 | セイコーエプソン株式会社 | 液体噴射システム |
DE102016108904A1 (de) | 2016-05-13 | 2017-11-16 | Océ Holding B.V. | Vorrichtung und Verfahren zum Ermitteln des Eindringverhaltens von einer Flüssigkeit in ein Substrat |
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US20050264629A1 (en) * | 2004-05-25 | 2005-12-01 | Sony Corporation | Recording fluid, cartridge for fluid, device and method for discharging fluid |
JP2006117883A (ja) * | 2004-10-25 | 2006-05-11 | Sony Corp | 記録液、液体カートリッジ、液体吐出装置及び液体吐出方法 |
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2004
- 2004-12-24 JP JP2004374465A patent/JP2006182800A/ja not_active Abandoned
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2005
- 2005-12-12 TW TW094143894A patent/TW200640703A/zh not_active IP Right Cessation
- 2005-12-14 CN CNA2005800486771A patent/CN101128549A/zh active Pending
- 2005-12-14 US US11/722,588 patent/US20070247496A1/en not_active Abandoned
- 2005-12-14 WO PCT/JP2005/022980 patent/WO2006068018A1/ja active Application Filing
- 2005-12-14 KR KR20077014211A patent/KR20070089815A/ko not_active Application Discontinuation
- 2005-12-14 EP EP20050816690 patent/EP1847574A1/en not_active Withdrawn
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JP2003192966A (ja) * | 2001-12-26 | 2003-07-09 | Sakata Corp | 水性インクジェット用インク組成物 |
JP2003268277A (ja) * | 2002-03-20 | 2003-09-25 | Ricoh Co Ltd | インク及びそれを用いた記録方法 |
JP2004059932A (ja) * | 2002-07-30 | 2004-02-26 | Hewlett-Packard Development Co Lp | インクジェットインクにおける像のプリント品質を改善する界面活性剤/溶媒組合せの使用方法 |
JP2004075768A (ja) * | 2002-08-13 | 2004-03-11 | Konica Minolta Holdings Inc | インクジェットインク、インクジェットインクセット及びインクジェット記録方法 |
JP2004137357A (ja) * | 2002-10-17 | 2004-05-13 | Ricoh Co Ltd | 水性記録液及びそれを用いた記録方法 |
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JP2008013598A (ja) * | 2006-07-03 | 2008-01-24 | Sony Corp | 記録液及び液体吐出方法 |
Also Published As
Publication number | Publication date |
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KR20070089815A (ko) | 2007-09-03 |
CN101128549A (zh) | 2008-02-20 |
JP2006182800A (ja) | 2006-07-13 |
TW200640703A (en) | 2006-12-01 |
US20070247496A1 (en) | 2007-10-25 |
EP1847574A1 (en) | 2007-10-24 |
TWI298676B (ja) | 2008-07-11 |
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