DE2352465A1 - PROCESS FOR COLORING AND PRINTING TEXTILE MATERIALS - Google Patents

Description

DIpWn ₉₁ RWIRTH-DnV-SCHMtED-KOWARZlK Dipping. G. DANNENBERG ■ Dr. P. WEINHOLD · Dr, D. GUDEL

281134 6FRANKFUBTAMMAiN

TELEPHONE C0611)

267014 GH. ESCHENHEIMER STHASSE 33

Pase, 150-3451
Wd / Seh

SAHBOZ JUG. B a se 1
Switzerland

Process 2 may dye and print textiles materials

The present invention relates to a method for Dyeing and printing of textile materials, whereby this by appropriate pretreatment with basic Dyes can be colored so that the dyeability is improved.

- 409818/1092

- 2 - ' Case 150-3431

Textile materials such as woven or knitted fabrics, on the one hand basic dyeable fibers or threads, and on the other hand Acid-dyeable fibers or threads, such as natural or synthetic polyamides, present difficulties when dyeing or printing. When using basic dyes alone or in a mixture with anionic ones Inadequate results are obtained from dyes / since it is not possible to use both the basic and the acid-dyeable parts of the textile material the same to be colored or printed deeply or with the same nuances and to achieve good fastness properties such as washing, perspiration or water fastness at the same time. If only basic or cationic dyes are used, the dyeing of the wool content is insufficient, because this class of dyes only soils the wool and does not dye fast, resulting in poor fastness properties and a flaky appearance of the dyed areas. If, in turn, a mixture of cationic and anionic dyes is used, the soiling of the Collar content inevitable due to the cationic dye and the fastness properties are accordingly inadequate. In addition show printing pastes containing mixtures of anionic and cationic dyes only to a very limited extent

4 09 8 1.8 / 1.0 9.2

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Storage stability by irreversible reactions such as precipitation, occur.

For the production of multicolour effects on natural and synthetic polyamide fiber material, it is already known to _f, the Polyamidfasermateriäl process with an aqueous solution of at least one colorless _f fiber-reactive compound prior-2ubehanäeln and then with untreated and / or with at least one otherwise pretreated fiber material and having an affinity for the fiber To dye dye or mixture of such dyes.

It is also known that for tone-on-tone Dyeing of mixtures of an elastomer / polyamide textile fiber mixture E.g. a stretch blended fabric made of a polyurethane and polyamide fiber blend, the fiber blend with an anionic one Pre-treating blocking agents and then coloring with a hydrophilic dye.

Finally, it is known that textile material made of natural polyamides _t reserve against anionic dyes by treatment with the colorless fiber-reactive compounds. The textiles made of natural polyamide treated with these compounds then show an increased dyeability for basic dyes.

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It has now been found that it is possible to stain acidic Fibers, threads or textiles made from them, primarily based on natural or synthetic polyamides to be modified by a pretreatment in such a way / that this is now also mixed with modified polyacrylonitrile or polyester fibers, circumventing the disadvantages mentioned, with dye liquors containing basic dyes or printing pastes can be colored or printed.

The present invention relates to a method for dyeing and printing textile materials, which, both basic dyeable fibers and those made of natural or synthetic polyamides / which is characterized in that one before the dyeing or Printing process with a basic dye containing

Dye liquor the textile material with liquors or pastes containing a solution or dispersion of one or more such colorless, fiber-reactive compound that is able to react with polyamide fibers and carboxylic acid or Containing sulfonic acid groups in the molecule, pretreated and fixed them.

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The invention also relates to the colored ones obtained in this way textile materials as well as woven fabrics made from such treated textile materials, Knitted fabrics / carpets, fleeces etc.

Basically dyeable fibers, threads or textiles made therefrom are above all modified polyacrylonitrile fibers and modified polyester fibers which are "already" known, for example those which contain sulfonic acid groups, as formed using sulfophthalic acid, or carboxyl groups as substituents in the chain. Acid-dyeable fibers, threads or textiles made from them are primarily natural polyamides such as wool or silk, but also leather and synthetic polyamides. The latter include, for example, the polymeric products of / * - caprolactam, as well as the condensation products of dicarboxylic acids such as polymethylene dicarboxylic acids such as adipic acid and polymethylene diamines such as hexamethylene diamine. Such products are known as nylon 6 _#, nylon 7, nylon 66, nylon 76, nylon 6IO, and so on

Among colorless, fiber-reactive compounds are in particular To understand compounds in which any, optionally substituted and / or hetero-

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Atoms-containing, colorless organic residue, which should preferably not be noticeably volatile, to a Group is bonded which can easily be reacted with a nitrogen atom of the polyamide. Such Groups contain, for example, reactive halogen atoms, in particular fluorine, chlorine or bromine atoms or one or

several C-C double bonds. Preferred reactive groups are e.g. halogen-containing triaziny groups, in particular Dihalotriazinyl groups, but also trihalopyrimidyl, carboxylic acid halide or sulfonic acid halide groups. Such compounds correspond, for example, to the formula

Shark f

N N

Shark

v / orin shark fluorine, chlorine or bromine, X is a group of formula

SO ₃ H

COOH

SO ₃ H

-O

COOH

SO ₅ H

-NH

409818/1092

cooir

—NH

\ jrf \ Zs \ V.COOID & »

SAD ORIGINAL

- 7 - Case '150-3431

; ΟΙΟΗ $ Ρ3Το. ^or

η 1, 2 or 3 and R is an alkyl group with 1-4 carbon atoms, the -SO ₃ H and -COOH groups are preferably not bonded to the aromatic nucleus in the ortho position "to the oxygen or imino bridge member and the aromatic nuclei, for example, halogen atoms such as fluorine, chlorine, bromine, nitro, cyano or alkyl or alkoxy groups with 1-4 carbon atoms can carry as further substituents.

For the production and application of the liquors and pastes, for the use _{according to the invention for textiles g} containing the fiber gelatin from basic and acid-dyeable components, the procedure is analogous to that already described in Swiss Patent No. 525997 ,, "The in the aforementioned The specific colorless, fiber-reactive compounds listed in the examples can also be used well according to the invention.

The dye liquor or the printing paste can also be used as a coacervate system are present. A special i-5 feature of the invention device Procedure is that the mentioned text

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filing materials ^ which can be dyed alkaline and acidic Contain portion, can only be colored or printed with basic dyes. Basic dyes, which are recommended for dyeing polyacrylic fibers, are e.g. in Color Index, Third Edition, Volume I., pages 1607-1688 listed. Such textile materials are also within the present invention to use which, in addition to basic and acidic dyeable components, also contain e.g. polyester fibers, which can be dyed with disperse dyes. Likewise, the dye liquors or pastes in addition to the basic dye or the basic dyes also acidic dyes, disperse dyes, pigments and contain additional aids.

One dyes or prints under the usual known conditions, 2.B. continually. In the examples below Parts mean parts by weight, percentages mean percentages by weight, degrees of Celsius.

409818/1092

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B ice ρ i 'e T' 1 -

A knitted fabric consisting of 50% modified polyacrylic-titanium fiber and 50% wool is pretreated in a bath. The treatment _{bath contains /} with a liquor ratio of 1:35, 4% 2 _r 4-dichloro-6- (phenylamino-4 ¹ -sulfonic acid) -1,3,5-triazine- (calculated on the weight of the goods). The pH value is adjusted to 4 _{? With formic acid.} 5 set. The bath is then heated to 60 ° C., the knitted fabric is added and it is gently agitated in the bath. The temperature is increased to 80 ^° C. and the treatment is continued for one hour. The pH is then adjusted to 9 with ammonia and the tissue is treated in this way for a further 20 minutes. Finally, it is rinsed warm and cold and dried. The material pretreated in this way is printed with a printing paste, the 20 g of the dye CI. Basic Violet 16,

Const. No. 48.013

50 g locust bean gum, etherified (candy

product), • 30 g benzyl alcohol,

2.5 g tartaric acid,
897.5 g water,

contains. After printing, the goods are dried and steamed for 30 minutes with a steam of 0.5 atmospheres. The so fixed Prints are first rinsed cold at 50 ° C

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soaped, rinsed and dried. The resulting prints show uniform coloring of the polyacrylonitrile and wool content as well as good fastness properties.

B e i s ρ i e 1 2

A fabric which consists of 40% modified polyacrylonitrile fiber and 60% wool is pretreated as in Example 1 and then treated with a printing paste which is present as a coacervate system. This printing paste is produced as follows:

10 parts of nonyl phenyl pentaglycol ether

and

50 parts of a 20% aqueous solution of ricinoleic acid and oleic acid ester sulfonate sodium salt are used in

• 5OO parts of thickening, consisting of 22% crystal rubber , 13% digested starch and 65% v / ater with the aid of a propeller stirrer stirred in at room temperature, v / obei zv / ei aqueous phases form after Principle of coacervation. 5 parts tartaric acid 50% is added, then

be send
5 parts of the dye CI "Basic Violet 16, and

4Q98m7-i092

11 - Case 150-3431

3 parts of the dye C.I. Acid Blue 23 in .427 .... TeIIe added to the hot pot and oil like that

1000 parts of the solution obtained, stirred well «

Claims (7)

- 12 - Case 150-3-431 P. a .t. e, η .t. a n. s. p. r. ft c. h e 1. Process for dyeing and printing textile materials which contain both basic dyeable fibers those made of natural or synthetic polyamides, characterized in that one before Dyeing or printing process with a dye liquor containing basic dyes, the textile material with liquors or pastes containing a solution or dispersion of one or more such colorless, fiber-reactive Compounds that are able to react with polyamide fibers and carboxylic acid or sulfonic acid groups in the molecule contained, pretreated and fixed. 2. The method according to claim 1, characterized in that that one is impregnated with a colorless, fiber-reactive compound, the molecule of which is a halogen-substituted triaζiny group and one or more carboxylic acid or contains sulfonic acid groups as substituents. 3. The method according to claim 2, characterized in that fiber-reactive compound of the formula HaI-Y \ -X V- HsI Case 150-3431 wherein Hal is fluorine, chlorine or bromine, X is a group of formula , --O-KO COOK ^ COOlI -K) I or SO ₃ H SO ₅ H - (SO ₃ H) _n , COOH -NH η 1, 2 or 3 and R is an Alky! group with 1-4 carbon atoms, the --SO ₃ H and -COOH groups
vox "2ugsvfeise are not bound to the aromatic nucleus in the ortho position to the oxygen or imino bridge member and the aromatic nuclei, for example, halogen atoms, such as fluorine , chlorine, bromine, nitro, cyano or
Alkyl or alkoxy groups with 1-4 carbon atoms as further substituents can be used
will" - ' 4098T8 / 1092 14- "Case I5O-3431 4. The method according to claims 1-3, characterized in that that the textile material contains fibers or threads made of polyacrylonitrile and wool. .5. Method according to claims 1-4, characterized in that one with a dye liquor or * paste colors or prints, which as a dye or /. Dyes contains only basic dyes. 6. Yerfaferen according to claim 3, characterized that the fiber-reactive compound contains one or more SO ^ H groups in the molecule. 7. The pre-treated according to patent claims 1-6, impregnated textile material. 37OQ / KM / GB 409818/1092