SU432730A3 - The method of dyeing and printing - Google Patents

Description

one

Known for the coloring and printing of natural and synthetic materials in a dye bath or printing paste containing a cationic dye.

According to a known method, the dyeing is carried out at a high temperature, the cationic azo dyes decompose, therefore, the resulting colors are not strong enough.

In order to obtain more durable stains, compounds of the following formula

Ankotor may be in tomer forms

+

v /

An

I

R,

where rings B and D may contain further non-ionic substituents, AN - anion, Cs-alkyl, aralkyl, alkenyl, alkoxy or aralkoxy for the sake of / R,

feces, R-ORa-; Srz-; -N, and R.

Ri - hydrogen, alkyl, aralkyl, alkenyl or aryl radical, heterocyclic radical or NH2-rpynna, R2 - hydrogen, alkyl, aralkyl or aryl radical, heterocyclic radical or group

An

KA-25

An30 where A is a direct bond or a bridge link and Ri, Ra, B and D have the indicated meanings, and the radicals Ri and Ra can be with closed rings, also forming a heterocyclic system, Ra is an alkyl, aralkyl or aryl radical. According to the proposed method, it is possible to dye and print materials from acrylonitrile polymers and copolymers, acid-modified polyamides, leather, paper, etched with tannic acid cotton and lignin-containing fibers. Dyeing is carried out in a weakly acidic bath. The products are introduced into the dyebath at a temperature of 40-60 ° C and then painted at the boiling point or under pressure at temperatures above 100 ° C. It is possible to add dye to the spinning solution in this way. The dye can be used as a writing fluid. Example 1. Polyacrylonitrile fibers are introduced at 40 ° C into a dye bath containing (g / l) 0.15 colorant of the formula 0.75 30% acetic acid, 0.15 sodium acetate and X water. The dye bath is boiled for 20-30 minutes and dyed at this temperature for 30-60 minutes, then the dyed fabric is washed and dried. Example 2. Oxygenated polyglycol terephthalate fibers were introduced into a dye bath containing 0.15% dye of the formula 3-10 g / l sodium sulfate, 0.1-1 g / l oleyl polyglycol ether, O-15 g / l dimethyl benzyl dodecyl ammonium chloride. Dyeing is carried out at a modulus of 1: 40, starts at a temperature of 20 ° C and is heated for 30 minutes to 100 ° C and dyed at this temperature for 60 minutes, then the fibers are rinsed and dried. Example 3. Nolyacrylonitrile fabric is printed with printing paste of the following composition (parts by weight): 30 dyes of formula 50, thiodiethylene glycol, 30 cyclohexanol, 30 30% acetic acid (which is diluted with 330 parts by weight of hot water and in this way the solution was introduced 500 parts by weight of crystalline rubber), 30 zinc nitrite solution. The printed fabric is dried, steamed for 30 minutes and then rinsed. Example 4. Polyacrylonigril fibers were introduced into a Nerchlorethylene bath with bath module 1; 10. For 1 liter in the bath contained 1 g of ethanolamide butyric acid, 1 g of the product of disintegration 1 mol of oleyl alcohol with 20 mol of ethylene oxide, 8 g of water and 1 g of glacial acetic acid, as well as 1 g of the dye of the following formula MH- (Shg), GSNZ in a closed dyeing apparatus, intensively mixing the solution, the dyebath is heated to a temperature of 100 ° C for 60 minutes. Then the fabric is rinsed and dried. Example 5. To obtain printing ink, the following amounts of components are mixed, wt. including: 10 dye; 14 condensates of formaldehyde, o-chlorophenol and salicylic acid; 4 artificial resin; 1 ethyl cellulose; 66 ethanol and 5 ethyl glycol. This ink is processed paper and aluminum film. Get a red seal. Example 6. 35 g of the dye of Nimer 5 are dissolved in 1 liter of a mixture of 700 wt. including water, 297 wt. including diethylene glycol and 3 wt. including ethoxylated ethyl phenol. A red letter is obtained. Example 7. 100 weight. h. additionally tanned chrome skin or vegetable-synthetic tanned leather is sown in a dye bath containing (weight h) 250 water, 1 dye and 1 30% acetic acid at a temperature of 60 ° C for 30 minutes. After washing with water, impregnation with fat and drying, red-colored skin is obtained. Example 8. 10 wt. including dyes are dissolved in 1 l of water; 1 kg of unbleached sulphate pulp is dyed with this solution, glued with rosin soap, and then fixed with sulphate of alumina. The paper thus obtained is red. Example 9. 10 g of cotton yarn is etched as follows. The yarn at a temperature of 60-70 ° C is fed to 150 ml of water, which contains 0.5 g of tannin, and treated in a cooling bath for 4 hours. After pressing, it is treated with a cold solution of 0.2% emetic for 20-30 minutes, and then washed. At room temperature, the yarn is fed to a dye bath consisting of 300 ml of water, 0.05 g of dye and 0.4 g of 30% acetic acid. Heated to a temperature of 60-70 ° C for 6 hours, maintained at this temperature for 10 minutes, after which the yarn is left in the bath for an additional 30 minutes. After drying and washing, a red color is obtained. The subject of the invention. Method of dyeing and printing fibers from polymers and copolymers of acrylonitrile, acid-modified polyesters, acid-modified polyamides, coli, paper, pickled with tannic acid cotton and containing lignin fibers by treating them in a dyebath or printing paste containing cationic dye, characterized by that, in order to obtain more durable stains, as a dye, compounds of the following formula are used which can be in tautomeric forms where rings B and D can contain further non-ionic substituents, AN - anion, Cs - alkyl, aralkyl, alkenyl alkoxy or aralkoxy radical, R -ORo-, -SRo-, N (, and Ri is hydrogen, alkyl, aralkyl, alkenyl or aryl radical, heterocyclic radical or NHo -rpynna, R2 - hydrogen, alkyl, aralkyl or aryl radical, heterocyclic radical or group -fR-A-AN

where A is a direct bond or bridge link and Ri, Rs, B and D have the indicated

values, and the radicals Ri and R2 can

to be with closed rings, also to

heterocyclic system

Rs is alkyl, aralkyl or aryl

radical.