WO1998052733A1 - Verfahren und vorrichtung zum herstellen eines films oder einer schicht mit beidseitiger oberflächenstruktur - Google Patents
Verfahren und vorrichtung zum herstellen eines films oder einer schicht mit beidseitiger oberflächenstrukturInfo
- Publication number
- WO1998052733A1 WO1998052733A1 PCT/EP1998/002445 EP9802445W WO9852733A1 WO 1998052733 A1 WO1998052733 A1 WO 1998052733A1 EP 9802445 W EP9802445 W EP 9802445W WO 9852733 A1 WO9852733 A1 WO 9852733A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller
- film
- layer
- station
- webs
- Prior art date
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/28—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/222—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
Definitions
- the invention relates to a method for producing a film or a layer having an at least one surface structure on a base film and a structural or flat pattern which is register-accurate to the other side and which are produced via a first roller and a second roller provided with a peripheral structure, the rollers for approximately the same speed, but in opposite directions, and the film or the layer is applied by applying a layer of thermoplastic material to a film fed over the first roller of the second roller and by irradiation to harden the plastic layer lying on the circumference of the second roller through the base film is produced, and a suitable device therefor
- EP-PS 655 032 of the applicants it has become known to apply an anti-copying film made of transparent material and line or strip-shaped covers in a staggered arrangement to both surfaces of the film in terms of printing technology and / or photo technology by applying a photosensitive layer, in particular a photoresist layer , on one side of the film, (UV) observing through a mask and developing and then applying a further photosensitive layer to the other side of the film, (UV) observing through a mask and developing Eme particularly good registration of the line or stripe Covers are achieved when the second photosensitive layer is exposed through the first, already developed layer
- 3-dimensional panoramic images are also known which are provided with paper as the base film or consist directly of a plastic lens layer, with an image layer being printed either on the paper or on the back of the lens layer
- incisions or punching holes are used in the film, with the help of which the printing process takes place in the register
- Em layer structure film which can be used particularly for 3-D image purposes, as is also known from the US Pat. No. 4,414,316 described in the following.
- a flexible, composite film with a lens shape surface consists of a base - Film and a transparent, thermosetting layer, which has lens shapes, the focal plane of the lens shapes being essentially on the back of the base film.
- the thermosetting layer consists of a thermosetting plastic which is hardened by means of UV light.
- the known film is intended for this purpose To produce 3-dimensional representations or photographs by laminating the film onto stereographic printed images
- a unilaterally structured film is also known from WO 94/01288.
- cynders are provided and on the back cover strips can be produced by printing, but without a technical teaching for achieving emer being assigned to the position of the cover strips
- a film for anti-copying purposes cannot be produced according to this document
- the process is further characterized by a film or a layer which, as the surface structure on the emerside, has a large number of the same, parallel-lying, elongated lens structures, in particular of a cylindrical dome shape, and on the other hand has parallel parallel grooves or grooves or webs (or "bars") that are assigned to one another in register. ) is provided
- the film or layer can also be formed with a multiplicity of parallel arc-shaped lenses as a surface structure
- the surface structure on the other side can also be formed by a multiplicity of parallel webs, in particular of rectangular shape
- one-sided lens structure and the other-sided parallel lines, grooves or webs are produced one after the other in time, in particular immediately one after the other, and in register with one another
- the lenses and webs can advantageously consist of a UV-hardenable plastic, in particular an acrylic resin.
- a UV-hardenable plastic in particular an acrylic resin.
- the plastic in particular the acrylic resin, with pigment up to about 30% by weight
- the number of such cover layers is at least two, preferably eight
- the maximum transparency of the webs should be approximately 7%. This ensures that the properties of the anti-copying film that are dependent on the viewing angle can be achieved
- the width of the webs is selected so that they cover at most about 80% of the surface of the film or layer and thus make them opaque when positioned approximately vertically
- the device according to the invention Characteristic here is a third roller connected downstream of the first two rollers, which is applied at the same speed and in the opposite direction to the second roller and which is provided with a structural or flat pattern on the circumference, with a further layer on the other side by means of a further application coated and hardened base film is applied and then (on the other side) is hardened by means of a radiation source
- the second roller expediently has a plurality of the same, parallel, elongated cylindrical sleeve grooves, in particular of cylindrical dome shape, as the circumferential structure.
- the cross section of the grooves can also have an arc shape
- the third roller is expediently formed with a circumferential structure from a multiplicity of parallel grooves, in particular of rectangular shape
- the grooves are made very precisely and reproducibly
- the first roller is suitably made with a smooth peripheral surface
- a contact roller is provided on the first roller, via which the carrier film for the production of a film or a layer is fed to the circumference of the first roller
- the second roller is designed to be axially adjustable relative to the first and third rollers by means of an adjusting device, in particular on an eccentric basis
- the third roller can be made axially adjustable relative to the first and second rollers
- the Verstellvornchtung can simply consist essentially of a pressure element connected to the axially adjustable roller, to which an eccentric shaft is attached
- rollers which are not axially adjustable in each case, are mounted by means of a pivoting or pulling device, for simple and quick threading of the Carrier film.
- a swivel mechanism formed from an eccentric bearing, can be used cheaply for this.
- a caster with a casting gap can be used as the application device for the layer material, and a lifting device for the caster can also be provided for threading the carrier film.
- a disc rotor motor with an intermediate gear and a synchronous control can advantageously be provided.
- the application device is a curtain caster which has a housing with light protection devices, the latter containing elements made of PTFE.
- the application device consists of fine metering elements. These are piston housings with dosing needles that alternately run over the pouring area of the rollers.
- a gap setting device can be provided for the first gap between the first and second rollers and another for the second gap between the second and third rollers.
- An unwinding station for the carrier film is equipped with a dancer roller control and is arranged in front of the manufacturing device for the film or the layer in order to obtain an adjustable, constant tape tension.
- a further drive station with dancer roller control can advantageously be provided in the running direction of the film or the layer behind the production device in order to be able to set another suitable tape tension. It is also expedient if the webs are to be provided with cover layers to lower the transparency, to arrange a printing station for printing the webs on the back of the carrier foal in the running direction of the film or the layer behind the further auxiliary station
- a station can advantageously be provided 2 ⁇ m to hang the adhesive on the film or layer above the printing station
- Figure 1 is a schematic representation of the device
- FIG. 2 shows an additional unit which can be used in the sectional plane A-A 'of FIG
- Figure 3 shows the 3-roller arrangement of the device on an enlarged scale
- Figure 4 shows a Verstellvornchtung for the axial adjustment of the rollers
- Figure 5 shows a puller of the non-axially adjustable rollers
- Figure 6 is an impression screw device for roller adjustment in two planes
- FIG. 8 shows a section of an anti-copying film with cylindrical-dome lenses and associated beams with cover layers
- An unwinding station 5 consists of a film supply roll 6 and a cutting and gluing table 7 for cutting the film 9 and gluing a new roll start. This is followed by a dancer roll control 8 for setting and maintaining a specific, as constant as possible band tension in the film 9 The lateral alignment of the run of the film 9 is carried out by means of an edge control 10.
- the film dips into the film or layer production device 11, passes a light barrier 12, is deflected by the deflecting roller 13 and reaches the circumference of a pressure roller 14 Smooth roller 15, which has a very flat and smooth circumference, and which leads the film 9 into the gap 16, which is provided between the smooth roller 15 and the adjacent roller 17, the latter having a peripheral structure, in particular a lens structure, and which therefore as Lens structure roller 17 is to be referred to.
- the coated film 9, which is to be referred to as film 25, is guided around the periphery of the lens structure roller 17 and reaches a further gap 18 between the lens structure roller 17 and a beam structure roller 19, which is on the periphery has a recessed or flat bar structure after passing the film 25 around also the
- the roll circumference of the film 25 is removed from the production device and via a further light barrier 12 into the roll-up winding station 20, which in turn contains a dancer roll control 8 and a cutting and gluing table 7 and a film or layer roll-up roll 21 in the production device 11 radiation sources 22 are arranged on the periphery of the lens structure roller 17 and the beam structure roller 19
- the following additional unit shown in FIG. 2, can be inserted in the device diagram of FIG. 1 at the sectional plane A-A '
- the film 25 arriving from the light barrier 12 enters a drive station 23 with a dancer roller control 8 and a drive roller 24 with a pressure roller 14.
- the film 25 then reaches a printing station 26 which, in addition to a printing unit 27, contains a radiation source 22, a dancer roller control 8 and an edge control 10
- the printed film 25 reaches an adhesive station 28, optionally with a laminating station 29, in which a covering film is applied to the adhesive layer of the film 25.
- the adhesive station contains an adhesive application unit 30 and a radiation source 22 and the laminating station 29 an application device 31 for the laminating material 32, which is fed from a supply roll 33 via a cutting and gluing device 7 and a dancer roller control 8
- Figure 3 shows the core device, namely the three rollers smooth roller 15, lens structure roller 17 and beam structure roller 19 in more precise mutual association.
- the rollers 15 and 19 are arranged in relation to the horizontal diameter D of the roller 1 at an angle d of, for example, 45 ° in front of the roller 15, the deflection roller 13 and the pressure roller 14 are provided, which feed the film 9 to the roller 15.
- Columns 16 and 18 indicate amounts of coating material as well as casters 34 and 35, which apply the material to the film 9 or the film 25 as application devices.
- the casters 34, 35 are expediently curtain casters with light protection devices 79, for example made of PTFE, insofar as high-hardness materials are used
- Radiation sources 22 are provided on the peripheries of the rollers 17 and 19
- the gaps 16 and 18 can be adjusted by the amounts ⁇ a and ⁇ b, respectively, the later explanation of the gap adjusting device.
- ⁇ a is practically equal to ⁇ b and corresponds essentially to the thickness of the carrier color e or the support layer ⁇ a
- ⁇ b can also be chosen to be unequal, ie greater than the film thickness, for example to increase the focusing distance
- each of the rollers 15 to 19 also have its own auxiliary motor 15A, 17A and 19A.
- Each of these motors 15A to 19A is equipped with its own gear, not shown, has a very small moment of inertia and its own speedometer
- All motors are coupled to one another via an electronic synchronous control
- the smooth roller 15 is expediently equipped with a guide function. That is to say, the motor 15A is the guide element which specifies the machine speed and in particular the speeds of the other rollers 17 and 19
- the guide roller, smooth roller 15, and the beam structure roller 19, e.g. can be pivoted to and from one another by means of eccentric adjustment devices, as indicated in FIG. 3.
- a suitable eccentric adjustment device 50 is shown schematically in cross section and view in FIG.
- the gap 16, 18 can be opened to 8 mm for threading and cleaning. Precise repeatability is ensured by means of stop disks, not shown, which can be mounted on the extended roller axis via pressure sleeves.
- the rollers 15 and 19 themselves can be swiveled in and out via suitable pneumatic cylinders, which also have a tolerance-compensating effect.
- FIG. 5 An alternative adjusting device 60 is shown in FIG. 5 on the basis of pulling off non-axially adjustable rollers on a linear guide.
- 15 (19) denotes the fixed roller, that is to say not adjustable here. Its axis 49 is held in the pivot bearings 51 A, B.
- the other removable roller 17 is also mounted with an axis 52 in such pivot bearings 51A.
- a housing 53 which in addition to the pivot bearings 51 A, B also suitable sliding or
- Contains rolling elements 54 is connected to pneumatic cylinders 55.
- the pneumatic cylinders 55 When the pneumatic cylinders 55 are actuated, the sliding or rolling elements 54 move on linear guide rails 56 in the directions of the double arrow B.
- the accuracy of approximately 1-2 ⁇ m can also be achieved here.
- the casters 34 and 35 are shown schematically in FIG. 3, once with an outer outline (34) and once (35) with an adjusting screw for adjusting the application quantity.
- the entire caster 35 which of course extends over the entire width of the film 9, can be lifted off the roller 17 by means of a pivoting device (not shown, but indicated by double arrows C) for cleaning and threading the film 9 and can then be pivoted back on .
- a pivoting device not shown, but indicated by double arrows C
- the distance between the caster lip and the roller can be suitably adjusted by means of screws.
- All three rollers, smooth roller 15, lens structure roller 17 and beam structure roller 19 are each adjustable on their side, where the drive motor 15 A, 17 A, 19 A is not present, in two planes for the axis parallelism to one another.
- the setting must be carried out precisely in the micrometer range - with an accuracy of approximately 1 ⁇ m to approximately 2 ⁇ m and can expediently be carried out by means of the following fine-adjustment bearing device 90 using forcing screws as shown in FIG.
- the bearing device 57 is mounted in a cross shape between 4 adjusting devices 58 A-D. These each consist of a press-off foot 59, a screw bolt 61, a holder 62, a threaded hole 63 and a lock nut 64. If the screw bolt is screwed into the threaded hole 63, the bearing device 57 moves in the longitudinal direction of movement, that is to say with the upper adjusting device 58 A down (arrow a) and consequently up at 58 C, left at 58 B and right at 58 D (see arrows bd).
- an eccentric adjustment unit 70 shown in FIG. 7, can also be used to adjust the roller nips 16 and 18 (FIG. 1).
- the unit 70 consists of a fixed housing 66 with which a pressure sleeve 67 is firmly screwed.
- a disk 68 is shown via the pressure sleeve 67 with the roller 15 (19), as a dot-dash circle 69 in a pivoted-down position and at the top left as a dash-dot dot Circular fragment 71 shown, connected and with the 72 coupled
- the gap width can be corrected by adjusting the stop 74 A, 74 B.
- the bearing means 81 to 84 can also be used as an axis parallelism fine adjustment - Devices, how the devices 58 A - 58 D are formed in FIG. 6
- the method to be carried out with the present device essentially consists in casting the lens structure first (eg using a curtain casting method), curing the lens structure by means of thermal or radiation curing, and then without the lens structure having left the structure roller (lens structure roller 17) To cast the back of the film with a raised or flat bar structure perpendicularly opposite the lenses in registration with the lens structure and to hard, in particular according to the same casting and hard process and in particular using the same hardenable plastic materials
- the casting material for example a photoresist material, for example ZM-2483 R from Morton International Ine, USA or Craigcoat 1051 X from Craig Adhesives al Coatings Co, USA, is metered into a caster which can be closed for at least one metering device.
- a film in particular from Polyethylene terephthalate (PET) runs between smooth roller 15 and lens structure roller 17, each with a 180 ° wrap, over a third roller (beam structure roller 19), by means of which a back structure or a flat pattern is applied to the back of the film Founders are appropriately designed the same.
- PET Polyethylene terephthalate
- the pourer 34, 35 consists, as indicated in FIG. 3, of a trough with light protection devices 79 made of plastic film material, in particular as a seal to the roller 17, 19.
- the gaps are narrow, i.e. the smooth roller 15 is only lightly pressed against the lens structure roller 17, the photosensitive resin material, e.g. Photoresist is released via the pourer of the metering device and reaches the film, is carried away by it and passes under the relief cavities of the peripheral structure of the roller 17 or, if the roller 19 is designed as a structural roller, under the relief cavities of the roller 19 After a predetermined roll wrap angle of approximately 130-170 °, based on the 45 ° arrangement of the rolls 15 and 19 to the roll 17, the resin material layer is dried by radiation through the transparent film.
- Several radiation sources 22 can be present in order to obtain short dwell times in the radiation area so that high film or film transport speeds can be used.
- the gap adjustment devices 50 and 70 and the axis parallelism adjustment bearing device 90 are examples of a technical embodiment of such adjustment means in the range from approx. 1 to approx. 2 ⁇ m. Other equivalent and equally precise means can also be used for these purposes.
- a film should always be understood to mean a film which is provided with a layer on at least one side in the sense of the above application process.
- radiation is generated by all electromagnetic sources; it also includes UV radiation, IR radiation and corpuscular radiation (for example electron beams).
- UV radiation for example UV radiation
- IR radiation for example IR radiation
- corpuscular radiation for example electron beams.
- photoresist materials which are known as negative and positive resists
- Negative photoresists are generally based on photopolymerizable mixtures which, in addition to a polymeric agent, contain a photopolymerizable compound with a photoimtiator
- Positive-working photoresists are conventional systems made from a photo-insensitive, alkali-soluble matnx based on novolaks and a photosensitive component that acts as a
- Solubility inhibitor acts and is converted into alkaline products by exposure, so that the entire exposed areas become soluble in the alkaline development solvent
- Resists for the short-wave UV range are also known, for example, polymethyl methacrylate, copolymers of methyl methacrylate and indenone and of methyl methacrylate and 3-0-m-2-butanone as a photoactive component.
- Poly-methyl-methacrylate-co-methacrylic acid-Mat ⁇ x and o-nitrobenzyl esters known, for example esters of cholic acid, as solubility inhibitors
- the cross-section of an anti-copying film 80 (shown schematically) consists of a lens layer 76, a base film 77 and a bar layer 78.
- the lens layer 76 contains raised individual lenses U, which have, for example, a cylindrical dome shape (L).
- the bar layer contains raised bars B, which is approximately cuboid in shape (rectangular in cross section)
- the base sheet 77 is provided, which serves as a support for the layers 76 and 78 and which is commercially available with a very uniform thickness and preferably consists of polyester, for example polyethylene terephthalate (PETP)
- PETP polyethylene terephthalate
- Thickness tolerances of commercially available 100 ⁇ m foils are in the range of approximately +1 ⁇ m. Basically, foils with a thickness of approximately 10 ⁇ m to approximately 125 ⁇ m can be used expediently
- the lens layer 76 and the beam layer 78 can be produced as embossed or cast layers made of thermoplastic and hardenable materials with the respective lens-dome or cuboid structure. Because of the necessary registration of each lens dome with each cuboid beam, it is more economical , first of all to produce the lens-dome structure and then to produce the beams optically through the finished lens dome (similar to EP-PS 655 032), preferably by means of a hardening process using optical radiation
- the pourable plastics that are thermoplastic and radiation-hardenable, for example photoresists such as acrylic resin
- additives that harden by UV light and subsequent hardening, for example by means of UV or laser light
- the lens-dome structure and to produce the cuboid-shaped beam structure with the same or similar radiation-hardening materials in a compulsory registration.
- the production can be carried out continuously in webs, that is to say with extremely high accuracy using corresponding surface-structured rollers
- the central lens cap L is provided with a center line M and has an opening angle 2 ® of approximately 60 °.
- the base length is denoted by d and is determined by the number of lens caps per unit length, which is from approximately 50 to approximately 800 lumen calottes per cm and in the example is 100 / cm, determined With the angle ⁇ and the length d / 2 , the height h is calculated
- the bars B are approximately rectangular in cross-section and have a minimum thickness b of approximately 4 ⁇ m, possibly without pressure layers, and with pressure layers DR of preferably approximately 5 to approximately 10 ⁇ m, which have twice the thickness c.
- the center line M of the lens cap L and bar B symbolize the ideal allocation position to each other, which is, however, practically impossible to reach.
- the deviating center lines Ml and M2 are shown to the right and left of line M
- the distance to M stands for the symmetry tolerance deviation ⁇ L, where ⁇ L only the shift of the bar B with the bar width 1 to the right or left, as shown by spikes, should mean this symmetry tolerance deviation ⁇ L should be at most about +15%, in particular about ⁇ 3 to about ⁇ 5% of the bar width 1, if the properties of the anti-copying film should still be preserved.
- the width of the bar 1 should always be selected so that at most about 80% of the area of the document not to be copied, so that the human readability of the document is still ensured despite the anti-copying film attached to it
- the anti-copying film described is designed to prevent copying by means of copying devices with an opening angle in the range from approximately 20 ° to approximately 50 °, the opening angle being the largest opening angle of the optical system of the respective copier
- a double printing layer DR is applied to the bar thickness b, since it has proven to be advantageous to print two thinner layers in succession than one thicker layer of everything
- This printing layer DR can be applied, for example, in the printing station 26 in FIG.
- the materials of the layers for the Lmsen domes L and the beams B are the most transparent material possible (even after hardening) as well as the base film 77 in order to utilize the optical properties of the film as well as possible
- the base film made of polyester has the advantages of being optically transparent, economical and dimensionally stable.
- a polysulfone film could also be used, particularly because of its higher refractive index than polyester, but it is uneconomical because of its much higher costs.
- the larger refractive index allows a smaller bar width 1 with an unchanged opening angle or a larger opening angle of the copier with an unchanged bar width 1.
- the beams B are raised as a casting layer, a minimum thickness of about 3 ⁇ m is necessary, as described above.
- roller 19 it is entirely conceivable to design the roller 19 as a printing roller and printing layers of approximately 0.5-1 ⁇ m in thickness in the form of bars or in other forms, but in a fixed, geometric and optical assignment to a lens layer on the other side of the film or Train layer.
- Such flat structures can be used in 3D representations and other optical markings, security signs, etc.
- actinic radiation sources are used as light sources, as mentioned several times above, it is of course favorable to also select the printing inks and adhesive materials accordingly in order to be able to use the same radiation sources in all application and hardening or drying processes in order to achieve an optimal production flow without long dwell times to obtain.
- the great advantage of the described 3-roller contact method and the device is particularly that the film or the layer is in contact with a pair of rollers at any time during the coating or the production.
- the described invention relates to advantageous methods and devices for producing a transparent film or a transparent layer with at least one surface structure and a register-specific structural or surface pattern, which work with at least two rotating rollers and layer application in between and hardening a structure layer.
- a third rotating applicator roller makes it possible to apply and harden a further layer on the back of the structural layer in register accuracy.
- the rollers and nips can be adjusted very precisely using suitable devices.
- the rotation of all rollers is controlled by a master drive.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98924200A EP0983135B1 (de) | 1997-05-21 | 1998-04-24 | Verfahren und vorrichtung zum herstellen eines films oder einer schicht mit beidseitiger oberflächenstruktur |
AT98924200T ATE219718T1 (de) | 1997-05-21 | 1998-04-24 | Verfahren und vorrichtung zum herstellen eines films oder einer schicht mit beidseitiger oberflächenstruktur |
JP54985798A JP2001525744A (ja) | 1997-05-21 | 1998-04-24 | 両面に表面構造を有するフィルムないし層を形成する方法及び装置 |
KR1019997010709A KR20010012748A (ko) | 1997-05-21 | 1998-04-24 | 양면 구조를 갖는 필름 또는 코팅층을 제조하는 방법 및장치 |
DE59804592T DE59804592D1 (de) | 1997-05-21 | 1998-04-24 | Verfahren und vorrichtung zum herstellen eines films oder einer schicht mit beidseitiger oberflächenstruktur |
BR9809646-0A BR9809646A (pt) | 1997-05-21 | 1998-04-24 | Processo e aparelho para confeccionar um filme ou uma pelìcula com uma estrutura superficial |
US09/423,878 US6495214B1 (en) | 1997-05-21 | 1998-04-24 | Method of producing a film or a layer with a surface structure on both sides |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19721170.4 | 1997-05-21 | ||
DE19721170A DE19721170A1 (de) | 1997-05-21 | 1997-05-21 | Verfahren und Vorrichtung zum Herstellen eines Films oder einer Schicht mit beidseitiger Oberflächenstruktur |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/423,878 A-371-Of-International US6495214B1 (en) | 1997-05-21 | 1998-04-24 | Method of producing a film or a layer with a surface structure on both sides |
US10/273,467 Division US20030075269A1 (en) | 1997-05-21 | 2002-10-21 | Method of and apparatus for producing a film or a layer with a surface structure on both sides |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998052733A1 true WO1998052733A1 (de) | 1998-11-26 |
Family
ID=7830036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/002445 WO1998052733A1 (de) | 1997-05-21 | 1998-04-24 | Verfahren und vorrichtung zum herstellen eines films oder einer schicht mit beidseitiger oberflächenstruktur |
Country Status (11)
Country | Link |
---|---|
US (2) | US6495214B1 (de) |
EP (1) | EP0983135B1 (de) |
JP (1) | JP2001525744A (de) |
KR (1) | KR20010012748A (de) |
CN (1) | CN1103668C (de) |
AT (1) | ATE219718T1 (de) |
BR (1) | BR9809646A (de) |
DE (2) | DE19721170A1 (de) |
RU (1) | RU2193968C2 (de) |
TW (1) | TW466174B (de) |
WO (1) | WO1998052733A1 (de) |
Cited By (5)
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US7165959B2 (en) | 2003-09-09 | 2007-01-23 | 3M Innovative Properties Company | Apparatus and method for producing two-sided patterned webs in registration |
US7224529B2 (en) | 2003-09-09 | 2007-05-29 | 3M Innovative Properties Company | Microreplicated article |
US7444932B2 (en) | 2005-03-09 | 2008-11-04 | 3M Innovative Properties Company | Apparatus and method for making microreplicated article |
US8968629B2 (en) | 2005-03-09 | 2015-03-03 | 3M Innovative Properties Company | Apparatus and method for producing two-sided patterned web in registration |
WO2021062156A1 (en) * | 2019-09-27 | 2021-04-01 | Flex-N-Gate Advanced Productdevelopment, Llc | Double-sided optical sheets |
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- 1998-04-24 BR BR9809646-0A patent/BR9809646A/pt not_active IP Right Cessation
- 1998-04-24 JP JP54985798A patent/JP2001525744A/ja active Pending
- 1998-04-24 WO PCT/EP1998/002445 patent/WO1998052733A1/de not_active Application Discontinuation
- 1998-04-24 CN CN98805347A patent/CN1103668C/zh not_active Expired - Fee Related
- 1998-04-24 RU RU99126414/12A patent/RU2193968C2/ru active
- 1998-04-24 EP EP98924200A patent/EP0983135B1/de not_active Expired - Lifetime
- 1998-04-24 DE DE59804592T patent/DE59804592D1/de not_active Expired - Lifetime
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US7165959B2 (en) | 2003-09-09 | 2007-01-23 | 3M Innovative Properties Company | Apparatus and method for producing two-sided patterned webs in registration |
US7224529B2 (en) | 2003-09-09 | 2007-05-29 | 3M Innovative Properties Company | Microreplicated article |
US7417798B2 (en) | 2003-09-09 | 2008-08-26 | 3M Innovative Properties Company | Microreplicated article |
US7444932B2 (en) | 2005-03-09 | 2008-11-04 | 3M Innovative Properties Company | Apparatus and method for making microreplicated article |
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Also Published As
Publication number | Publication date |
---|---|
DE19721170A1 (de) | 1998-11-26 |
US6495214B1 (en) | 2002-12-17 |
KR20010012748A (ko) | 2001-02-26 |
ATE219718T1 (de) | 2002-07-15 |
CN1257442A (zh) | 2000-06-21 |
RU2193968C2 (ru) | 2002-12-10 |
DE59804592D1 (de) | 2002-08-01 |
TW466174B (en) | 2001-12-01 |
JP2001525744A (ja) | 2001-12-11 |
US20030075269A1 (en) | 2003-04-24 |
EP0983135A1 (de) | 2000-03-08 |
CN1103668C (zh) | 2003-03-26 |
EP0983135B1 (de) | 2002-06-26 |
BR9809646A (pt) | 2000-07-11 |
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