DE2333575A1 - PRINT PASTE FOR ACRYLIC FIBER TEXTILES - Google Patents

Description

Pr. E. ΒνΛ '-vr · Dr. Ββ / U

Γ · · '. M iiiichen 80
Luoiic ^ i.iUi.-äi.-. 3 «, i'el. 47 Sl SS

Albright & Wilson Limited, PO Box 3, Oldbury , Warley, Worcestershire, England

Printing paste for acrylic fiber textiles

The invention relates to printing methods for Textiles for printing on textiles made from acrylic fibers or modacrylic fibers.

In such processes, a woven or knitted textile made from regular, piled or pre-shrunk acrylic fibers or modacrylic fibers or from a mixture of such fibers with other fiber types applied with a printing paste which contains a dye. The application is accomplished by any of a number of common methods, such as by pressure rollers or pressure screens. The Vigoreaux printing process or mixed printing process is also used applied, whereby the paste is applied by rolling onto a linked sliver of threads, the is used to produce staple fibers. The invention is also applicable to the so-called Pad steaming, with a thin Dye paste evenly with a little thickener is applied over the surface of a textile.

309884/1359

Usual printing paste *! fluctuate within wide limits with regard to their composition depending on the type of dye and the material to be colored and the printing process that should be applied. As a general rule, such printing pastes can consist of, for example, 1 to 250 parts by weight per thousand Parts by weight of dye, more usually from 2 to 200 or 5 to 100 parts by weight per thousand parts by weight Dye; from 0 to 20, usually 1 to 20 or 2 to 10 parts by weight per thousand parts by weight of an etching agent and from 100 to 300, e.g., 150 to 200 parts by weight per thousand parts by weight of a thickener be composed. Pastes for use in the pad steaming process may contain 5 to 50, e.g. 10 to 25 or 15 to 20 parts by weight of thickening agent. Other The pastes can also contain additives for special purposes.

After the paste has been applied, the colored material is steamed to cause the fibers to swell, which causes them to absorb the dye and make it washable. Finally the material is washed and dried. A drying stage can also be switched on before steaming. _f

The steaming takes place at a temperature above the transition point of the polyacr $ fiber into the glass state and can bring about physical changes that lead to an impairment of the quality of the finished textile. To a certain extent this is avoided by careful control of temperature during ^r l9S subsequent cooling. However, it is still advisable to keep the damping time to a minimum, and one is constantly looking for additives to the pressure

309884/1359

ORIGINAL INSPECTED

paste that allow the steaming time to decrease will. However, no such additive found heretofore is completely satisfactory, as evidenced by the The fact states that in some applications, despite the inconveniences involved, it may be convenient was kept to use superheated steam under pressure to accelerate absorption, thereby reducing the steaming time can be reduced.

The invention provides a paste for use in printing textile materials which contain acrylic fibers or Modacry! Fibers and by a content of a nitrile compound of the general formula R (CH ₂ ^ 0 (GH ₂ ) _m ClI, in which R is a substituted or unsubstituted phenyl group, a linear or branched chain of a substituted or unsubstituted alkyl group "with 3 to 30 carbon atoms or a substituted or unsubstituted cycloaliphatic group and η and m are the same or different and η denotes 0 to 3 and m has a value of 1 to have 3,

are
Some of the nitrile compounds mentioned have already been proposed for use in vat dyeing of acrylic fibers as additives to dye liquors (eg in German Auslegeschrift 1 958472 and Japanese patent application 7889/68). However, these compounds have not heretofore been proposed for use in reducing the steaming time in the various technologies of textile printing processes.

The new pastes can contain conventional ingredients, for example a coloring agent, usually a modified one basic dye, a wetting agent and a thickening agent such as an alginate, gum tragacanth, etherified

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Corn starch, crystal gum or British gum or another phlegm. A thickener is a well known term in the art. Other possible thickeners are in the book "Druck von Textilien" by Walter Bernard, Springer-Verlag Berlin, Heidelberg, Hew York, 1969, described, references being made in this regard will. Such ingredients can be used in customary amounts depending on the application in question are selected. Other common dye auxiliaries can also be used. The nitrile compound has a significant effect in that that a reduction in the steaming time is achieved, without reducing the effectiveness of the damping when the compound is used in concentrations, which is only one part by weight per thousand parts by weight. However, the compound is more commonly used in amounts of at least 5 parts by weight per thousand parts by weight. parts applied. Preferred concentrations are 5 to 400 parts by weight per thousand parts by weight, 7 to 200 parts by weight per thousand parts by weight and 10 to 100, e.g. 10 to 50 parts by weight per thousand parts by weight. In general, a concentration of 1 up to 400 parts by weight per thousand parts by weight can be used.

The preferred nitrile compounds are those in whose formula the group R is an unsubstituted phenyl group is, although also through alkyl groups, halogen atoms and phenyl groups substituted with nitro groups can be used. Preferred aliphatic groups R are cycloaliphatic groups, e.g.

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- 5 ORIGINAL INSPECTED

Cyclohexyl group. When R is a cyclohexyl group, it is preferred that η = 0. In other cases, η is preferably 1 to 3. Other aliphatic groups are straight-chain and branched propyl, butyl, pentyl, hexyl, heptyl, octyl, ifonyl, decyl, uhdecyl and dodeeyl groups.

Preferably the compounds are derivatives of propionitrile, i.e., where m = 2. The most benzyloxypropionitrile is preferred, i.e., where R is a phenyl group, η = 1 and m = 2.

The wetting agent used is preferably selected among the non-ionic surface-active substances, such as the polyoxyethylene-alkyl esters or Alkyl ary esters or alicyclic aryl esters, Polyoxyäthylenalkylamiden and -alkylolamiden, Polyoxyäthylen-alkylarainen, ροIyoxyäthy1enierten phosphate esters, Sorbitol, fatty acid esters, sucrose fatty acid esters, Polyoxypropylene analogs of any of the substances mentioned and polyalkylene oxides, e.g. polyglycols or mixed products made of unsubstituted polyoxypropylene "and / or Polyoxyethylene oxide units. Polyoxyethylene alcohols are most preferred.

The amounts of common ingredients in the new pastes can be common, e.g. in the one already specified range are with reference to known pastes. The amount of thickener will be vary depending on whether the paste is used for applying after the pad steaming process or not provided, as already mentioned, but is generally in

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Range from 5 to 300 parts by weight per thousand parts by weight.

The new Aten can simply be mixed together of the components compiled in the well-known Yfeise be, although it is usually convenient to pre-form a solution of the Verdi okungsmittel and then the to mix other ingredients into this mixture. It should be noted here that known tools can also be present, e.g. acids such as citric acid and / or acetic acid, if basic dyes and also agents for solubilizing the dyes such as thiodiglycol.

When using, the new pastes can be used in the same Way as usual pastes are applied, whereby in the scope of the invention also processes for printing Textile materials fall where as printing paste a new paste according to the invention is used. Such new processes include screen printing and Roller printing of textiles, Vigoreaux printing and pad steaming.

The textile materials made using the new Paste can be printed on, woven or knitted fabrics or tops made from modacrylic fibers or contain acrylic fibers, possibly together with other fibers, such as polyester fibers, Polyamide fibers, éeratin fibers and synthetic fibers cellulose-based. Polyamide fibers include nylon "6" and nylon "66"; polyester fibers include polyethylene glycol terephthalate. The term "acrylic fibers" such as

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ORfGjNAL INSPECTED

it is used here is given its usual meaning used and includes fibers made of pure polyacrylonitrile or copolymers of acrylonitrile with e.g. "Vinyl chloride, vinylidene chloride, vinyl fluoride, vinyl acetate, Vinyl propionate, vinyl pyridine, vinyl imidazole, vinyl alcohol, acrylic and methacrylic acid esters, 2-halogen or 2-alkoxy-substituted Acrylonitrile and / or acrylic acid amides exist.

The invention is further illustrated by the following examples, in which all parts are by weight are.

example 1

There were three printing pastes made from the following ingredients manufactured: ' .

(I) parts by weight of thickener solution 50 nitrile compound in solution 1 - citric acid 1 dye 4 thiodiglycol 3 glacial acetic acid 1 water 38 -

(II) As (I), but using 2 parts of a solution of the substance compound.

(III) As (I), but using 3 parts of the solution of the nitrile compound.

309884/1359

The thickener solution consisted of:

Weightest iIe He is a1! Rubber 200 soluble in cold water etherified strength 100. water 1000.

The solution of the nitrile compound was a concentrated one solution of benzyloxypropionitrile ($ 80), isopropanol (1 Polyethylene glycol mono-oleate ester, medium molecular weight 400 ($ 8) and cetyl / stearyl alcohol condensate with 20 moles of ethylene oxide ($ 2). The dye was basic Eot, Colorindax 22 (2 parts) + Basic Brown Oolorindex 14 (2 parts).

The pastes were applied to samples of a soft twill made from the polyacrylic fiber "Courtelle" (registered trademark) using a conventional imprint process printed to produce a printed strip.

The printed fabrics were dried and then steamed at 0.7 atmospheres using saturated steam at 100 ⁰ O for 5 minutes. The fabrics were then rinsed in cold water, ^{soaped at 55 to 60 0} G with an aqueous soap solution (5 g / l) for 10 minutes and finally rinsed and dried.

Printed materials with real colors and a good build-up of the dye yield for the pastes (i), (II) and (III) obtained. The dye yield was in in all cases greater than in corresponding applications,

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ORlGiHAL INSPECTED

where the nitrile compound solution is not used became.

Example 2

Example 1 was repeated except that only 2 parts Basic Blue Colorindex.64 were used as the dye, the steaming at 110 ⁰ O with dry steam 30 min. Was performed. Improved results were again found compared to the Pail in which no nitrile compound was used.

Example 5

Example 2 was repeated, except that the solution of the nitrile compound was a solution of benzyloxypropionitrile ($ 90) applied in diethylene glycol ($ 10). Similar Results like those of Example 2 were obtained.

Example 4

Example 2 was repeated, but 4 parts · Basic Blue Colorindex 64 were used as the dye. Similar Results like those of Example 2 were obtained.

example 5

Example 3 was repeated using that of Example 4 as the dye. There were results similar to those of Example 2 were obtained.

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ORIGINAL INSPECTED

¹⁰ "2 3 3 '= ^Γ 5 7

Example 6

Example 1 was repeated, but 2 parts of Basic Orange Colorindex 30 were used as the dye. The steaming was carried out for 30 minutes at 100 ^° C. with saturated steam. Improved color yields were obtained compared with the pail in which no solution of the nitrile compound was used.

Example 7

Example 6 was repeated, but the solution of the iitrile compound from Example 3 was used. It Results similar to those of Example 6 were obtained.

Example 8

Example 7 was repeated, but there was a drying step omitted before steaming. The dye yield was better than that obtained in Example 7.

Example 9

Three printing pastes were made as follows: (IV) parts by weight

Thickener Solution 65

Solution of the nitrile compound 1

Basic blue color index 45

Dye 2 '

Glacial acetic acid ^Λ

Water 28-30.

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^r "n"'\ INSPECTED

(V) As (IY), but with 2 parts of a solution of the nitrile compound.

(VI) As (IV), but with 3 parts of a solution of the compound.

As a thickener solution, 250 parts of crystal rubber was used used in 1 liter of water.

The nitrile compound solution was the same as that from example 1.

"Courtelle" soft twill fabrics were printed with a stripe through a conventional screen printing method using pastes (IV), (V) and (VI). The printed fabrics were -gedämpft without prior drying at 10O ⁰ C with saturated steam for 10 min., Then rinsed in cold water, 10 min. L soaped in an aqueous soap solution of 5 g / rinsed and dried.

With the three printing pastes (IV), (V) and (VI) a good build-up of the]? Dye yield was obtained, and the yields were in each case greater with the presence of the nitrile compound than without it.

Example 10

Example 9 was repeated, but the fabric a knitted polyacrylic fiber fabric made from "Orion 42" (registered trademark) is used. There were results similar to those obtained in Example 9 were obtained.

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Example 11

Example 9 was repeated, however; was considered a fabric a fabric made of woven polyacrylic fibers "Acrilan 16" (registered trademark) is used. Results similar to those of Example 9 were obtained.

Examples 12-14

Examples 9-11 were repeated, but was the solution of the nitrile compound from Example 3 was used in each pail. The remaining conditions were the same as in Examples 9-11. Results similar to those of Example 9 were obtained.

It should be noted that in all cases the use of the nitrile compound surprisingly results in the dye yield improved. The omission of a drying stage "steaming" can also be beneficial.

- patent claims -

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OHiQlNAL INSPECTED

Claims (21)

Patent appeals 1. Paste for printing textile materials consisting of acrylic fibers or Modacry! Or containing, characterized in that it comprises _n a nitrile compound of the general formula R (CH ₂₎ O (CH _{2) m} ClT contains, in which R is a a substituted or unsubstituted phenyl group, a linear or branched substituted or unsubstituted alkyl group having 3 to 30 carbon atoms or a substituted or unsubstituted cycloaliphatic group, η can have a value from 0 to 3, ra can have a value from 1 to 3 and η and m can be the same or different. 2. Paste according to claim 1, characterized in that in the general formula of the nitrile compound R represents a substituted or unsubstituted phenyl group. 3. Paste according to claim 1 or 2, characterized in that η in the general formula of the ITitrile compound has a value from 1 to 3. 4. Paste according to claim 1 to 2, characterized in that that the nitrile compound is benzyloxypropionitrile, 5. Paste according to claim 1, characterized in that in the general formula of the nitrile compound R represents a cycloaliphatic group and η Ο. 6. Paste according to claim 5, characterized in that R is a cyclohexy group. 309884/1359 -H- -η-? 3Γί; ν, 75 7. Paste according to one of the previous claims, characterized in that the nitrile compound in an amount of 1 to 400 parts by weight per thousand parts by weight, based on the paste, is present. 8. Paste according to claim 7, characterized in that the intermediate compound in an amount from 7 to Parts by weight per thousand parts by weight, based on the paste, is present. 9. Paste according to one of the preceding claims, characterized in that it also contains 1 to Contains 20 parts by weight per thousand parts by weight, based on the paste, of an IT wetting agent. 10. Paste according to claim 9 »characterized in that the wetting agent is a polyoxyethylene or is polyoxypropylenated compound selected from the group of allyl esters, alkyl / aryl ethers, alicyclic / aryl esters, alkyl amides, alkylolamines and alkylamines or a sorbitol fatty acid ester, a sucrose fatty acid ester or a polyalkylene oxide is.- 11. Paste according to claim 9, characterized in that that the wetting agent is a polyoxyethylene Is phosphate ester. 12. Paste according to one of the preceding claims, characterized in that it is used as a dye contains a modified basic dye. 309884/1359 2333 ^ 75 13. Paste according to claim 12, characterized in that the dye in an amount of 1 to 250 Parts by weight per thousand parts by weight, based on on the paste. 14. Paste according to one of the preceding claims for use in pad-steaming textile materials from acrylic fibers or modacrylic fibers ^ characterized in that they also 5 to Contains 50 parts by weight per thousand parts by weight of a thickener. 15. Paste according to one of claims 1 to 13, characterized in that it is 100 to 300 parts by weight contains per thousand parts by weight, based on the paste, of a thickening agent. 16. Paste according to claim 14 or 15 »characterized in that the thickener is an alginate, Gum tragacanth, etherified. Corn starch, a crystal gum or British rubber is. 17. Use of a paste according to one of the claims 1 to 16 for printing on textile materials Acrylic fibers or Modacry! Fibers. 18. Process for printing on textile materials which consist of acrylic fibers or modacrylic fibers or contain such, characterized in that a paste according to one of Claims 1 to 16 is used for printing. - 16 - 30988 U / 1359 ORfGJNAL INSPECTED 19. The method according to claim 18, characterized in, that one printing by the screen printing process, the roller printing process or the Yigoreaux printing process en applies. 20. The method according to claim 18, characterized in that the printing according to the pad-steaming process in front. 21. The method according to any one of claims 18 to 20, characterized in that the printed Textile material without a previous drying stage dampens.