CA2084224A1 - Reactive dyestuff mixtures - Google Patents
Reactive dyestuff mixturesInfo
- Publication number
- CA2084224A1 CA2084224A1 CA002084224A CA2084224A CA2084224A1 CA 2084224 A1 CA2084224 A1 CA 2084224A1 CA 002084224 A CA002084224 A CA 002084224A CA 2084224 A CA2084224 A CA 2084224A CA 2084224 A1 CA2084224 A1 CA 2084224A1
- Authority
- CA
- Canada
- Prior art keywords
- dyestuff
- denotes
- parts
- weight
- dyestuffs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000000975 dye Substances 0.000 title claims abstract description 45
- 239000000203 mixture Substances 0.000 title claims abstract description 38
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000004043 dyeing Methods 0.000 claims description 27
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 claims description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 150000003254 radicals Chemical class 0.000 claims description 5
- 229910006069 SO3H Inorganic materials 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 4
- 125000001424 substituent group Chemical group 0.000 claims description 4
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- SPSSDDOTEZKOOV-UHFFFAOYSA-N 2,3-dichloroquinoxaline Chemical compound C1=CC=C2N=C(Cl)C(Cl)=NC2=C1 SPSSDDOTEZKOOV-UHFFFAOYSA-N 0.000 claims description 2
- 125000000738 acetamido group Chemical group [H]C([H])([H])C(=O)N([H])[*] 0.000 claims description 2
- 125000000129 anionic group Chemical group 0.000 claims description 2
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 2
- 125000002837 carbocyclic group Chemical group 0.000 claims description 2
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims description 2
- 125000000623 heterocyclic group Chemical group 0.000 claims description 2
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 2
- 150000002790 naphthalenes Chemical class 0.000 claims description 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims 1
- 239000000428 dust Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 230000009257 reactivity Effects 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- -1 nitro, hydroxyl Chemical group 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 2
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 125000001951 carbamoylamino group Chemical group C(N)(=O)N* 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 125000003262 carboxylic acid ester group Chemical group [H]C([H])([*:2])OC(=O)C([H])([H])[*:1] 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002367 halogens Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000000565 sulfonamide group Chemical group 0.000 description 1
- PFXVKGGZWQQTSE-UHFFFAOYSA-N sulfuryl dicyanide Chemical compound N#CS(=O)(=O)C#N PFXVKGGZWQQTSE-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
- C09B67/0046—Mixtures of two or more azo dyes
- C09B67/0047—Mixtures of two or more reactive azo dyes
- C09B67/0048—Mixtures of two or more reactive azo dyes all the reactive groups being directly attached to a heterocyclic system
Abstract
Reactive dyestuff mixtures A b s t r a c t Improved reactive dyestuff mixtures comprise a reactive dyestuff of the formula (I) (I) and a chlorotriazine dyestuff of the formula (II) wherein the substituents have the meaning given in the description.
Le A 28 747 - Foreign countries
Le A 28 747 - Foreign countries
Description
~8~2~
The invention relates to mixtures of reactive dyestuffs, preferably of the same hue ~nd different reactivi~ies and substantivity, which have Lmproved absorption p~operties, compared with the individual components, during dyeing of cellulose or regenerated cellulose fibres.
Reac~ive dyestuffs are used in the form of their indivi-dual components or in the form of mixtures of different dyestuffs for dyeing cellulose fihres. In the case of m-xtures, the reactivities of th~ individual components of the mixture should as far as possible be identical or at least sLmilar, in order to ensure that the dyestuffs are compatible during the dyeing process and thus achieve a solid appearance of the goodsO If reactive dyestuffs have widely different reactivities, they are regarded as belonging to dyestuff ranges which differ from one another and have to be applied under different alkali and temperature conditions. In current usage, reactive dyestuffs are divided into three groups on the basis of their different reactivities: reactive dyestuffs of high reactivity which can be applied for dyeing at below 40C
are called cold-dyeing dyes, dyestuffs which are applied at 40 to 60C are called warm-dyeing dyes, and dyestuffs which are applied in the region of 80~C are called hot-dyeing dyes. Because of their different reactivities and substan~ivities, the three groups of dyestuff ranges are applied according to processing directions specific to the group.
Le A 28 747 - 1 -~ ` ~
The difference between applying a warm-dyeing dye and a hot-dyeing dye is, for example, that the hot-dyeing dye is applied at a dyeing temperature which is 20 to 40C
higher, an electroly~e concentration which is 40 ~/l of sodium chloride higher and a ~odium carbonate concentration of the dyebath which is 10 g/l higher.
Th~ inven_ion i based on the ob~ect of providing a dyestuff mixture which shows a uniformity of the fixation process superior to that of the individual dyestuffs, coupled with a good yield of fixation.
The invention relates to a reactive dyestuff mixture of dyestuffs which preferably produce shades of the same hue, characterised in that it comprises in each case at least one dyestuff having a dichloroquinoxaline reactive group, of the formul~
[R-N-N-RI~ ~ N-OC ~ l ]m (I) wherein A denotes a five- to six-membered carbocyclic or heterocyclic ring, in particular phenyl, X denotes hydrogen or a substituent customary for azo dye~tuffs, in particul~r optionally substituted alk~yl, aralkyl and aryl radicals, sulphonic acid, Le A 28 747 - 2 -2 ~
carboxylic acid and halogen substituents, such as chlorine and bromine substituents, and furthermore nitro, hydroxyl, alkoxy, cyano, sulphone and option-ally substituted sulphonamide groups, and acid ester S groupings, such as sulphonic acid and carboxylic acid ester groups, 2 denotes hydrogen or a substituent customary for azo dyestuffs, preferably hydrogen or an alkyl group, R denotes ths radical of a diazo component of the benzene or naphthalene series which optionally contains further azo groups, R1 denotes ~he radical of an azo component, m denotes 1 or 2, n denot2s an integer from 1 to 3, preferably of the formula I.l ~03H
~=~coo~
H 'N
c l l~ ,~CO - HN
(I.l) So~H
and at least one chlorotriazine dyestuff of the general formula (II) Le A 28 747 - 3 -2 2 ~
D1 N N A1 N~-~N==~
l-R2 (II
B
N~N_R2 D2-N=N-A2-NH--C N
C I
wherein R2 independently of one another denote H or Cl-C4-alkyl, Dl and D2 denote components having the ~tructure [3~ ~ t SO3H ) 1-~3~ R5 N~l OH O ~
~Rg)l_2~tR9)1_z OH
R
where Le A 28 747 - 4 -' ' ' 2 ~
R3 = CH3 or C2H5, R4 = COOH or CONH2, R5 = CH3, R7 = CH3 or COOH, R3 = H or SO3H and Rg = H, Cl or CH3, A~ and A2 independently of one another denote ~ ~ or ~SO~H)1_2 R6 (503H~o 1 So3H
lD where R6 = CH3, C2Hs, NHCO-~H2 or NH-CO-CH3, and B denotes ~ , ~ L
wherA
I. = a ~ingle bond, NH-CO-NH or -CH=CH-.
Le A 28 ;747 - 5 -~42%~
Particularly pref rred dyestuffs II are:
~1= N~}NH--C~N
H03 S03H NH-CO-NH2 NH II . l (~03H
~35 ~= N~H~$
H03S 03H NH-C0-~U2 Cl or Il.2 ~NH_<,N--$
So3H NH
HO3s ~
~ S03H
S103H OH : I
Ç[~NU--~ ~N
So3H Ho3S N-~-Le A 28 747 - 6 -~8~
II .3 Cl NJ~N
CH3 NHlNlNH
H2N - OC~N=N~SO 3H ~
o~N~OH S03H ~J~503H
CH2 - ~H3 CH
Il O~OH S~ l~SO3H
H2NOC~N=N~S03H lV
CH3 N~NH
N ~N
-Le A 28 747 - 7 -2~8~
II.g HooC~rN=~
~ ~rCI
r IH
HO
NH
NH
HO~S~
NH
HOOC~=N~
Le A 28 747 - 8 -~, , -,' .
' . ' .
, ~, , :
2 ~
Dyestuff mixtures with dyestuffs of the formula ~II) are already known from EP-A-478,503. However, there i8 no indication of the use of dyestuffs of the formula (I).
The dyestllff mixture can preferably be used for dyeing S cotton and other cellulose fibres by the exhaust method on customary dyeing units.
Dyeing temperatures of 40C to 80C are possible, the preferred dyeing temperature is 60C, and the preferred starting temperature is 30~C, in accordance with the following dyeing procedure:
TLme (minutes) Temperature (C) Measure . . .
O 30 Addition of dyestuff 10 30 Addi~ion of salt, in particular Na2SO4, NaCl 30 30 Addition of fixing agent, in particular sodium carbonate, NaOH
60 30 A 6Q Heating up to 60C
The preferred reactive dyestuff mixtures comprise 20 to 80 parts by weight of at least one dyestuff of the formula (I) and 80 to 20 part~ by weight of at least one dye3tuff of the formula (II), these parts by weight Le A 2~ 747 - 9 -2 2 ~
together making 100. Other dyestuffs or customary auxili-aries can additionally be employed. In particular, the dyestuff mixtures accordiny to the invention comprise, per 100 parts of dyestuff, 1 to 50 parts of an inorganic salt, such as, for example, sodium chloride or sodium sulphate. The mixtures according to the invention furthermore preferably comprise a buffer, in particular an inorganic buffer, which results in a buffering range of between pH 6.5 and 7.5. For better handling, the mixtures according to the invention prefera~ly comprise dispersing agents, in particular 0.5 to 10 parts ~y weight of an organic anionic dispersing agent, based on the total mixture, and a dustproofing agent, preferably 0.5 to 5 parts by weight, based on the total mixture.
Example 1000 parts of an aqueous dye liquor at 30C are entered with 10~ parts of knitted cotton goods and 2 parts of reactive dyestuff mixture. This dyestuff mixture comprises 1 part each of the dyestuff of the formula (I.1) and of the dyestuff of the formula (II.1).
After the dyestuff mixture has become uniformly dispersed in the liquor and on the cotton, 50 parts of sodium chloride are introduced into the dyeing liquor, and 20 parts of sodium carbonate are then added. The dyeing liquor is heated to 60C in the course of 30 minutes, with vigorou3 agitation of the liquor and goods, and left at this temperature for 90 minute~.
Le A 28 747 - 10 2 2 ~
The liquor i5 then drained off and the goods are rinsed twice at 50C and twice at 80C. They are then soaped at the boil for 15 minutes and rinsed cold. A level golden yellow dyeing having good fastness propert~Ps is obtained.
If the dyeing is carried out with a mixture of the dyestuffs I and II, the individual components in the mixture show more harmonious dye:ing properties than would be expected from their respective dyestuff types, producing a dyeing curve which is flatter than the dyeing curve of I and steeper than the dyeing curve II, that is to say in the mixture claimed (I + II), the dyestuff which is slower to react (formula II) is fixed faster, under the same fixing conditions, than corresponds to its typical fixing properties.
In the case of dyeings in the temperature range from 30C
to 60C, in accordance with the dyeing procedure described above, it is to be expected for moderately reactive dyestuffs that fixation takes place very rapidly, given the amounts of fixing agent employed (20 g/l of sodium carbonate).
According to the current state of the art, this would constitute a considerable risk of unlevslness~ On the other hand, the use of dyestuffs of low reactivity has the effect, under these conditions, of only slight fixation at the start of dyeing and a gradual increase in the rate of fixation during the heating-up phase.
Le A 28 747 The fact that the dyestuffs, when mixed with one another, follow a common f~xation curve, which i8 a mea ure of the positive mutual influencing of the dyestuffs, is unexpected and surprising.
It is furthermore surprising that, in spite of the fixing conditions chosen being ostensibly too demanding, the more reactive componen~ of the mixture dyes the material uniformly and with a high yield. On the other hand, in spite of the reaction conditions being ostensibly too "mild", the less reactive component of the mixture achieves qood final yiel s .
Le A 28 747 - 12 -
The invention relates to mixtures of reactive dyestuffs, preferably of the same hue ~nd different reactivi~ies and substantivity, which have Lmproved absorption p~operties, compared with the individual components, during dyeing of cellulose or regenerated cellulose fibres.
Reac~ive dyestuffs are used in the form of their indivi-dual components or in the form of mixtures of different dyestuffs for dyeing cellulose fihres. In the case of m-xtures, the reactivities of th~ individual components of the mixture should as far as possible be identical or at least sLmilar, in order to ensure that the dyestuffs are compatible during the dyeing process and thus achieve a solid appearance of the goodsO If reactive dyestuffs have widely different reactivities, they are regarded as belonging to dyestuff ranges which differ from one another and have to be applied under different alkali and temperature conditions. In current usage, reactive dyestuffs are divided into three groups on the basis of their different reactivities: reactive dyestuffs of high reactivity which can be applied for dyeing at below 40C
are called cold-dyeing dyes, dyestuffs which are applied at 40 to 60C are called warm-dyeing dyes, and dyestuffs which are applied in the region of 80~C are called hot-dyeing dyes. Because of their different reactivities and substan~ivities, the three groups of dyestuff ranges are applied according to processing directions specific to the group.
Le A 28 747 - 1 -~ ` ~
The difference between applying a warm-dyeing dye and a hot-dyeing dye is, for example, that the hot-dyeing dye is applied at a dyeing temperature which is 20 to 40C
higher, an electroly~e concentration which is 40 ~/l of sodium chloride higher and a ~odium carbonate concentration of the dyebath which is 10 g/l higher.
Th~ inven_ion i based on the ob~ect of providing a dyestuff mixture which shows a uniformity of the fixation process superior to that of the individual dyestuffs, coupled with a good yield of fixation.
The invention relates to a reactive dyestuff mixture of dyestuffs which preferably produce shades of the same hue, characterised in that it comprises in each case at least one dyestuff having a dichloroquinoxaline reactive group, of the formul~
[R-N-N-RI~ ~ N-OC ~ l ]m (I) wherein A denotes a five- to six-membered carbocyclic or heterocyclic ring, in particular phenyl, X denotes hydrogen or a substituent customary for azo dye~tuffs, in particul~r optionally substituted alk~yl, aralkyl and aryl radicals, sulphonic acid, Le A 28 747 - 2 -2 ~
carboxylic acid and halogen substituents, such as chlorine and bromine substituents, and furthermore nitro, hydroxyl, alkoxy, cyano, sulphone and option-ally substituted sulphonamide groups, and acid ester S groupings, such as sulphonic acid and carboxylic acid ester groups, 2 denotes hydrogen or a substituent customary for azo dyestuffs, preferably hydrogen or an alkyl group, R denotes ths radical of a diazo component of the benzene or naphthalene series which optionally contains further azo groups, R1 denotes ~he radical of an azo component, m denotes 1 or 2, n denot2s an integer from 1 to 3, preferably of the formula I.l ~03H
~=~coo~
H 'N
c l l~ ,~CO - HN
(I.l) So~H
and at least one chlorotriazine dyestuff of the general formula (II) Le A 28 747 - 3 -2 2 ~
D1 N N A1 N~-~N==~
l-R2 (II
B
N~N_R2 D2-N=N-A2-NH--C N
C I
wherein R2 independently of one another denote H or Cl-C4-alkyl, Dl and D2 denote components having the ~tructure [3~ ~ t SO3H ) 1-~3~ R5 N~l OH O ~
~Rg)l_2~tR9)1_z OH
R
where Le A 28 747 - 4 -' ' ' 2 ~
R3 = CH3 or C2H5, R4 = COOH or CONH2, R5 = CH3, R7 = CH3 or COOH, R3 = H or SO3H and Rg = H, Cl or CH3, A~ and A2 independently of one another denote ~ ~ or ~SO~H)1_2 R6 (503H~o 1 So3H
lD where R6 = CH3, C2Hs, NHCO-~H2 or NH-CO-CH3, and B denotes ~ , ~ L
wherA
I. = a ~ingle bond, NH-CO-NH or -CH=CH-.
Le A 28 ;747 - 5 -~42%~
Particularly pref rred dyestuffs II are:
~1= N~}NH--C~N
H03 S03H NH-CO-NH2 NH II . l (~03H
~35 ~= N~H~$
H03S 03H NH-C0-~U2 Cl or Il.2 ~NH_<,N--$
So3H NH
HO3s ~
~ S03H
S103H OH : I
Ç[~NU--~ ~N
So3H Ho3S N-~-Le A 28 747 - 6 -~8~
II .3 Cl NJ~N
CH3 NHlNlNH
H2N - OC~N=N~SO 3H ~
o~N~OH S03H ~J~503H
CH2 - ~H3 CH
Il O~OH S~ l~SO3H
H2NOC~N=N~S03H lV
CH3 N~NH
N ~N
-Le A 28 747 - 7 -2~8~
II.g HooC~rN=~
~ ~rCI
r IH
HO
NH
NH
HO~S~
NH
HOOC~=N~
Le A 28 747 - 8 -~, , -,' .
' . ' .
, ~, , :
2 ~
Dyestuff mixtures with dyestuffs of the formula ~II) are already known from EP-A-478,503. However, there i8 no indication of the use of dyestuffs of the formula (I).
The dyestllff mixture can preferably be used for dyeing S cotton and other cellulose fibres by the exhaust method on customary dyeing units.
Dyeing temperatures of 40C to 80C are possible, the preferred dyeing temperature is 60C, and the preferred starting temperature is 30~C, in accordance with the following dyeing procedure:
TLme (minutes) Temperature (C) Measure . . .
O 30 Addition of dyestuff 10 30 Addi~ion of salt, in particular Na2SO4, NaCl 30 30 Addition of fixing agent, in particular sodium carbonate, NaOH
60 30 A 6Q Heating up to 60C
The preferred reactive dyestuff mixtures comprise 20 to 80 parts by weight of at least one dyestuff of the formula (I) and 80 to 20 part~ by weight of at least one dye3tuff of the formula (II), these parts by weight Le A 2~ 747 - 9 -2 2 ~
together making 100. Other dyestuffs or customary auxili-aries can additionally be employed. In particular, the dyestuff mixtures accordiny to the invention comprise, per 100 parts of dyestuff, 1 to 50 parts of an inorganic salt, such as, for example, sodium chloride or sodium sulphate. The mixtures according to the invention furthermore preferably comprise a buffer, in particular an inorganic buffer, which results in a buffering range of between pH 6.5 and 7.5. For better handling, the mixtures according to the invention prefera~ly comprise dispersing agents, in particular 0.5 to 10 parts ~y weight of an organic anionic dispersing agent, based on the total mixture, and a dustproofing agent, preferably 0.5 to 5 parts by weight, based on the total mixture.
Example 1000 parts of an aqueous dye liquor at 30C are entered with 10~ parts of knitted cotton goods and 2 parts of reactive dyestuff mixture. This dyestuff mixture comprises 1 part each of the dyestuff of the formula (I.1) and of the dyestuff of the formula (II.1).
After the dyestuff mixture has become uniformly dispersed in the liquor and on the cotton, 50 parts of sodium chloride are introduced into the dyeing liquor, and 20 parts of sodium carbonate are then added. The dyeing liquor is heated to 60C in the course of 30 minutes, with vigorou3 agitation of the liquor and goods, and left at this temperature for 90 minute~.
Le A 28 747 - 10 2 2 ~
The liquor i5 then drained off and the goods are rinsed twice at 50C and twice at 80C. They are then soaped at the boil for 15 minutes and rinsed cold. A level golden yellow dyeing having good fastness propert~Ps is obtained.
If the dyeing is carried out with a mixture of the dyestuffs I and II, the individual components in the mixture show more harmonious dye:ing properties than would be expected from their respective dyestuff types, producing a dyeing curve which is flatter than the dyeing curve of I and steeper than the dyeing curve II, that is to say in the mixture claimed (I + II), the dyestuff which is slower to react (formula II) is fixed faster, under the same fixing conditions, than corresponds to its typical fixing properties.
In the case of dyeings in the temperature range from 30C
to 60C, in accordance with the dyeing procedure described above, it is to be expected for moderately reactive dyestuffs that fixation takes place very rapidly, given the amounts of fixing agent employed (20 g/l of sodium carbonate).
According to the current state of the art, this would constitute a considerable risk of unlevslness~ On the other hand, the use of dyestuffs of low reactivity has the effect, under these conditions, of only slight fixation at the start of dyeing and a gradual increase in the rate of fixation during the heating-up phase.
Le A 28 747 The fact that the dyestuffs, when mixed with one another, follow a common f~xation curve, which i8 a mea ure of the positive mutual influencing of the dyestuffs, is unexpected and surprising.
It is furthermore surprising that, in spite of the fixing conditions chosen being ostensibly too demanding, the more reactive componen~ of the mixture dyes the material uniformly and with a high yield. On the other hand, in spite of the reaction conditions being ostensibly too "mild", the less reactive component of the mixture achieves qood final yiel s .
Le A 28 747 - 12 -
Claims (9)
1. Dyestuff mixture comprising at least two reactive dyestuffs, characterised in that it comprises at least one dyestuff having a dichloroquinoxaline reactive radical, of the formula (I) wherein A denotes a five- to six-membered carbocyclic or heterocyclic ring, X denotes hydrogen or a substituent customary for azo dyestuffs, Z denotes hydrogen or a substituent customary for azo dyestuffs, R denotes the radical of a diazo component of the benzene or naphthalene series which optionally contains further azo groups, R1 denotes the radical of an azo component, m denotes 1 or 2, Le A 28 747 - 13 -n denotes an integer from 1 to 3, and a chlorotriazine dyestuff of the general formula (II) (II) wherein R2 independently of one another denotes H or C1-C4-alkyl, D1 and D2 denote components having the structure , , Le A 28 747 - 14 - or where R3 = CH3 or C2H5, R4 = COOH or CONH2, R5 = CH3, R7 = CH3 or COOH, R8 = H or SO3H and R9 = H, Cl or CH3, A1 and A2 independently of one another denote , or where R6 = CH3, C2H5, NHCO-NH2 ox NH-CO-CH3, and Le A 28 747 - 15 -B denotes , NH-CO-NH or -CH=CH-where L = a single bond, NH-CO-NH or -CH3CH-.
2. Dyestuff mixture according to Claim 1, characterised in that the dyestuffs have the same hue.
3. Dyestuff mixture according to at least one of the preceding claims, characterised in that it comprises a dyestuff of the formula (I.1) and at least one of the dyestuffs Le A 28 747 - 16 -II.1 II .2 Le A 28 747 - 17 -II.3 or Le A 28 747 - 18 -II.4 Le A 28 747 - 19 -
4. Reactive dyestuff mixture according to at least one of the preceding claims, characterised in that it comprises 20 to 80 parts by weight of the dyestuff of the formula (I) and 80 to 20 parts by weight of the dyestuff of the formula (II).
5. Mixtures according to at least one of the preceding claims, characterised in that the dyestuff mixture comprises 1 to 50 parts by weight of an inorganic salt per 100 parts by weight of mixed dyestuff.
6. Mixtures according to at least one of the preceding claims, characterised in that 100 parts by weight of the mixed dyestuff comprises 1 to 5 parts by weight of an inorganic buffer.
7. Mixture according to at least one of the preceding claims, characterised in that the mixture comprises 0.5 to 10 parts by weight of a commercially avail-able organic anionic dispersing agent.
8. Mixture according to at least one of the preceding claims, characterised in that the mixture comprises 0.5 to 5 parts by weight of a commercially available dust removal agent.
9. Process for dyeing cotton and cotton fibre blends with a mixture of at least two reactive dyestuffs, characterised in that a mixture according to at least one of the preceding claims is used.
Le A 28 747 - 20 -
Le A 28 747 - 20 -
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4139954A DE4139954C1 (en) | 1991-12-04 | 1991-12-04 | |
| DEP4139954.4 | 1991-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2084224A1 true CA2084224A1 (en) | 1993-06-05 |
Family
ID=6446238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002084224A Abandoned CA2084224A1 (en) | 1991-12-04 | 1992-12-01 | Reactive dyestuff mixtures |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5364416A (en) |
| EP (1) | EP0545203A1 (en) |
| JP (1) | JPH05295288A (en) |
| CA (1) | CA2084224A1 (en) |
| DE (1) | DE4139954C1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW418240B (en) * | 1995-07-19 | 2001-01-11 | Ciba Sc Holding Ag | Dye mixtures, processes for their preparation and their use |
| DE19851389A1 (en) * | 1998-11-07 | 2000-05-11 | Dystar Textilfarben Gmbh & Co | Yellow dye mixtures of water-soluble fiber-reactive azo dyes and their use |
| DE19851497A1 (en) * | 1998-11-09 | 2000-05-18 | Dystar Textilfarben Gmbh & Co | Dye mixtures of fiber-reactive azo dyes and their use |
| EP1137715B1 (en) * | 1998-12-11 | 2004-06-16 | Clariant Finance (BVI) Limited | Fiber-reactive disazo dyestuffs |
| CN106479223B (en) * | 2016-10-12 | 2018-01-02 | 上海雅运纺织化工股份有限公司 | Yellow active dye composition and its tint applications and method on fiber |
| CN107325584B (en) * | 2017-07-03 | 2019-07-26 | 浙江名毅新能源股份有限公司 | 4,4 '-diaminobenzils -2,2 '-disulfonic acid compound, wherein mesosome, preparation method and application |
| US20240084144A1 (en) * | 2022-08-11 | 2024-03-14 | Nantong University | Reactive dyes and preparation methods thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1032503A (en) * | 1963-04-16 | 1966-06-08 | Du Pont | Process for dyeing cellulose material |
| DE2605620A1 (en) * | 1976-02-12 | 1977-08-18 | Bayer Ag | Dyeing polyamides esp. wool with reactive dyes - contg. dichloro-quinoxaline-carboxyl or (2,6)-difluoro-(5)-chloro-pyrimidinyl reactive gps. |
| DE3027546A1 (en) * | 1980-07-21 | 1982-02-18 | Bayer Ag, 5090 Leverkusen | REACTIVE COLORING PROCEDURE |
| US5196033A (en) * | 1986-08-15 | 1993-03-23 | Imperial Chemical Industries Plc | BIS-azotriazinyl reactive dyes having an N-alkyl-phenylenediamine link for cellulose textiles |
| DE3801112A1 (en) * | 1987-12-17 | 1989-06-29 | Bayer Ag | Process for dyeing cellulose fibre materials |
-
1991
- 1991-12-04 DE DE4139954A patent/DE4139954C1/de not_active Expired - Fee Related
-
1992
- 1992-11-23 EP EP92119920A patent/EP0545203A1/en not_active Withdrawn
- 1992-11-24 US US07/981,030 patent/US5364416A/en not_active Expired - Fee Related
- 1992-11-27 JP JP4339472A patent/JPH05295288A/en active Pending
- 1992-12-01 CA CA002084224A patent/CA2084224A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US5364416A (en) | 1994-11-15 |
| DE4139954C1 (en) | 1993-02-11 |
| EP0545203A1 (en) | 1993-06-09 |
| JPH05295288A (en) | 1993-11-09 |
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