DE743568C - Process for the production of etching patterns on dyed fibers - Google Patents

Description

Process for the production of etched patterns on colored fibrous materials It has been found that etching patterns can be produced by using pigment dyes, which can be etched by reduction etching, and binders colored fiber material with a neutral or alkaline reduction etch, the active ingredient of which is sodium formaldehyde sulfoxylate contains, if necessary with the addition of an etch-resistant dye, printed, then steams and then completes in the usual way.

Etchable azo pigments or colored lacquers are used as pigments for the process of acidic or substantive dyes that can be etched into consideration. As a binder for the pigment dyes verden compounds used that provide a firm fixation allow so that the dyes in the washing and rinsing process, which for removal the caustic degradation material required after steaming cannot be removed. For example may be mentioned: condensation compounds from phenols, ureas, aminotriakines as well as polyvinyl alcohol with aldehydes, condensation compounds from polybasic organic acids and polyhydric alcohols, especially those obtained by using of monobasic acids, e.g. B. fatty acids, unsaturated fatty acids or resin acids, can be obtained.

Polymerization compounds in the form of their solutions in organic solvents or as aqueous dispersions, with or without an organic solvent content, optionally with the addition of distributing agents, are also suitable as binders. Polymerization compounds such as these are: polyvinyl esters of inorganic and organic acids, polystyrene, polyacrylic acid esters, polyacrylic acid: nitrile, highly polymeric saturated or unsaturated, aliphatic or aliphatic hydrocarbons, as well as caustic and its conversion substances. Copolymers of two or more of the compounds mentioned are also suitable. Furthermore, z. B. Compounds of the general formula: where R1 and R2 denote aliplatic or isocyclic radicals, or their homologues or derivatives are used. Water-insoluble esters of cellulose in the form of their solutions in organic solvents or their aqueous dispersions are also suitable as binders. Furthermore, water-insoluble cellulose ethers can be used in the form of their solutions in caustic alkalis, whereby the fixation on the fiber takes place by precipitation on the same by means of electrolytes or acids.

The specified binders can also be used in a suitable combination be used with each other. When using aldehyde condensation compounds It is often advantageous to use suitable condensation accelerators. Even Softening agents can also be used.

The preparation of the pigment coloring is crossed in such a way that one the pigments in finely divided form, optionally with the addition of a suitable one Distribution means, e.g. B. Condensation compounds from ethylene oxide and higher molecular weight Alcohols, together with the binding agent, on the textile fiber by padding or paddling applies and after drying, if necessary, fixed by a heat treatment.

According to the method, a discharge printing paste, the sodium formaldehyde sulfoxyl at and a suitable thickening agent, e.g. B. tragacanth, British gum, starch paste or vegetable gum, contains, printed on. The etching paste can also contain alkalis, Alkali carbonates, white pigments and compounds that inhibit reduction, e.g. B. Anthraquinone, can be added. The printing of the discharge printing paste can be done in machine, film, Perrotine, Hand or spray pressure. The same can be used for the colored illumination of the etchings Vat dyes as well as etch-resistant basic dyes, acid or mordant dyes can be added. Etch-resistant pigment dyes in conjunction with a, Suitable adhesive binders are suitable for colored illumination.

Furthermore, conversion patterns can be produced if for the pigment colorations Etchable and etch-resistant pigment dyes are used side by side, with after the etching the etch-resistant dye rebounds, while the etchable pigment dyes gets destroyed.

After the discharge printing paste has been printed, it is dried and the printed Goods then steamed, whereby the pigment decolorization on the printed areas destroyed and, if necessary, the chromatic illumination dye is fixed. To the distance the etching degradation materials as well as the residues of the printing paste are rinsed after the Dampfcri and, if necessary, rewash the goods in neutral or alkaline baths, optionally with the addition of soap or distributing agents.

The production of white and colored etchings atf in the usual way with etchable Textile fibers dyed with dyes is known. In contrast, it is surprising that textiles that have been colored with pigment dyes and binders are also so where the dye in relation to normal coloring. much coarser distributed. present, can be etched white and colored in a satisfactory manner. It could Nor can it be expected that those used for fixing the pigment dyes binders used to remove the etching degradation materials and printing paste residues do not interfere in any way.

Examples i. You block a fabric made of bleached cotton with the following block solution: 4o 9 2o% dough of the azo dye 4, d .'-diamino-3, 3'-dichlorodiphenyl @@ i-phenyl-3-methyl-5-pyrazolone i-phenyl-3-methyl-5-pyrazolone 20 g of a 50% aqueous solution of the condensation compound from octadecylalk () liol with 3o 3-1o1 ethylene oxide 72o g of water 2-ammonia solution (25 °, loig) Zoo g ei ner go ° / @ igen aqueous emulsion from Pol @ -: tci-ylsä.tiremetliylester iooo After drying, the fabric is heated to 150 ° for 5 minutes and then printed with the following printing paste: a) 50 g of the dye I269 (Schultz, Farb- substance tables, 7th edition). 22o g of water 500 g British gum tragacanth thickening I2o g of sodium formaldehyde sulfoxylate Ioo g potash io g anthraquinone Iooo g b) 150 g of sodium formaldehyde sulfoxylate Ioo g potash 8o g titanium dioxide 26o g of water - 4oo g tragacanth thickening io g anthraquinone Iooo g After printing and drying, steaming is carried out in an air-free rapid steamer for 7 minutes, then rinsed and soaped.

With printing paste a, a vivid green print is obtained, with printing paste b a white print on an orange background. 2. A fabric made of viscose artificial silk crepe is padded with the following pad solution: 50 g 20% dough of dye no.86 (Schultz, op. Cit.), 64o9 water 20 g of a 50% strength aqueous solution of the condensation compound from isooctylplenol 'and 5 moles of ethylene oxide - 2o g ammonia solution (25%) 50 g 6% tragacanth solution. 5o, g of an 80% aqueous solution of the condensation compound of urea, form aldehyde and ethylene glycol 150 g of a 40% strength aqueous emulsion of a polymer compound made from butadiene and acrylonitrile 20 g ammonium rhodanide rooo g After drying, it is heated to 14o ° for 2 minutes, then printed with the following printing paste: 50 g of dye # I234 (Schultz, op. Cit.) 50 g thiodiglycol 60 g glycerine 25o g water - 400 g starch-tragacanth thickening I2o g of sodium formaldehyde sulfoxylate Ioo g potash 15 g of anthraquinone Iooo g After drueling and drying, steaming is carried out for 5 minutes in the high-speed steamer, then rinsed and placed in a hot steamer. Bath, which contains 3 g of anhydrous soda per liter, treated for 2 minutes. A vivid blue print on a red background is obtained.

3. The following paste is padded onto a fabric made of copper rayon: 4o 9 2o% dough of the azo dye I-Amino-2-methyl-5-nitrobenzene # I- (2 ', 3'-Oxy- -. - naphthoylamino) -4-chlorobenzene ' 82o g of water foo g of a precondensate, produced by heating a mixture of 62 g of melamine with 170 g formaldehyde solution (3oo / oig) on the water bath at 7o-80 ° until fully constant solution and immediate cooling of the solution - 2o g ammonia solution (25o / oig) 20 g ammonium rhodanide = ooo g. After drying and heating to 140 °, the discharge printing paste described in Example Ib is printed on and treated further as described there. A white discharge print is obtained on a pink colored ground. 4. A fabric made of glass threads or a fabric made of fiber material made of polyvinyl chloride is padded with the following approach: 40 g of the azo dye i-amino-2-methoxylienzol-5-sulforic acid diethylamide> IV, 3'- Oxynaphthoylamino) -2, q. -ditnethoxy-5-elilobenzene 8io g of water 50 g 6% tragacanth solution 100 g of hexamethylene diethylenediurea of the formula CH " CH. i; -N-CO-NH- (CH2), -NH-CO-N CH. CH2 iooo g After drying, the following discharge printing pastes are printed on: a) 5o g 2o% dough according to Example 2 the patent specification 658 oIg lichen blue dye 32o g of water . 300 g of 6% tragacanth solution 150 g of hexamethylene diethylenediurea I2o g of sodium formaldehyde sulfoxylate 5o9 potash Io g antraquinone Iooo g b) 150 g of sodium formaldehyde sulfoxylate 29o g of water 5o g caustic soda (4o 'Be) 500 g industrial rubber (I: 2) Io g anthraquinone Iooo g After printing and drying, it is steamed for 10 minutes and then rinsed and soaped. A blue is obtained with printing paste a Print, with printing paste b a white print on a pink background. 5. You pad a cellulose fabric with fol- gender block solution: 60 g 20% dough of dye 84 (Schultz, op. Cit.) 94o g of a solution of suction more alkali-soluble Methyl cellulose in 89o g of soda lye (6 ° Be) Iooo g After drying, the padded goods are taken through a bath of 5% sulfuric acid and 10% Glauber's salt, then rinsed well and dried.

The discharge printing paste described in Example 2 is used for printing and steaming 5 minutes! ', Rinses and soaps. A blue print on a yellow background is obtained.

6. A cotton fabric is padded with the following approach: 3o g of the azo dye I-amino-2, 5-dichlorobenzene # I- (2 ', 3'-oxynaphthoylaniino) - 2, 5-dimethoxybenzene are with 7o g of a 5o% solution of the condensation compound of linoleic acid, phthalic acid and Glycerine rubbed in xylene. Then you bet goo g of an aqueous emulsion, which was prepared as follows: 150 g of the condensation compound made from linseed oil, phthalic acid and glycerine in 2oo g of xylene dissolved. This solution comes with 100 g of a 50% solution of a urea-formaldehyde condensation compound mixed in butanol. Then will 2o g ammonia solution (25%) added and in the mixture with vigorous stirring 300 g of a 5 "polyvinyl alcohol solution emulsified iooo g After drying at 130 °, the Ätzdrucl.paste described in Example ia is pressed on, steamed for 5 minutes, rinsed and soaped. A green discharge print on a brown background is obtained. 7. A tree fabric is padded with the following approach: 5o g 20% dough of dye no.84 (Schultz, loc. Cit.) 2o g 2o% dough of the blue dye according to patent specification 658 oIg 3o9 5o% aqueous solution of the condensation compound from octadecyl alcohol with 3o moles of ethylene oxide 2o g ammonia solution (25%) Ego g water 50 g 6% tragacanth solution 100 g of a 40% aqueous emulsion of a copolymer of butadiene and acrylic acid nitrile 20 g of an 80% aqueous solution of a condensate compound made of urea, Formaldehyde and ethylene glycol 20 g ammonium rhodanide Iooo g After: drying at 140.degree. C. it becomes the following Printing paste printed on: 80 g sodium formaldehyde sulfoxylate I2o g potash 60 g glycerine 22o g of water 4oog British rubber thickening 20 g of anthraquinone Iooo g After printing and drying, it is steamed for 10 minutes in a high-speed steamer, rinsed with cold water and then treated at 90 ° in a bath containing 30 g of anhydrous soda per liter, then rinsed and dried.

A light blue print on a green background is obtained.

Claims (1)

PATENT CLAIM: Process for the production of etching patterns on colored Fibers, characterized in that by means of pigment dyes, which are etchable by reaction etching, and binders colored textile goods .with a neutral or alkaline reduction etching, the active ingredient sodium brmaldehyde sulfoxylate contains, if necessary with the addition of an etch-resistant dye, printed, then steams; and then finishes in the usual white. To delimit the Subject of the application from the state of the art: the technology are not in the grant procedure Pamphlets have been considered. .