SU1232717A1 - Method of dyeing textile materials - Google Patents

Description

one

The invention relates to dyeing and finishing production, in particular, to continuous methods of dyeing textile materials from natural and synthetic fibers with aqueous solutions of dyes of various classes using magnetic treatment of the dye solution.

The aim of the invention is to increase the yield of the dye on the material and the degree of its fixation.

The process consists in treating the dyeing solution and the textile material with a magnetic field at the same time in the impregnation process at a magnetic field strength of 120-240 kA / m, followed by fixing the dye at 102-220 ° C, rinsing and day.

This technical solution makes it possible to activate both the aqueous solution of the dye and the functional groups of the substrate, which facilitates the breaking of intermolecular hydrogen bonds in the textile material. This improves the penetration of the dye into the fiber, contributes to the effective selection of the dye from the solution and its more complete fixation on the fiber, and, consequently, leads to an increase in the intensity of dyes.

Example J, Cotton fabric is impregnated in a magnetic field with a strength of 120 kA / m with a dyeing solution containing, g / l: direct pure blue 5.3; wetting agent 1.7; sodium carbonate 1, water - up to 1 l, squeeze out up to 100% of the weight gain, fix in saturated medium, for 1 minute, rinse and dry, the result is a uniform blue color,

Example 2. Cotton fabric is impregnated in a magnetic field with a strength of 160 kA / m with a dyeing solution containing, g / l: active violet 4K 10; sodium bicarbonate 10, urea 150, water to 1 l, squeeze to 100% weight gain, dry, fix with hot air for 1.5 minutes, rinse and dry, the result is intense violet color,

Example 3; Cotton fabric is dyed according to Example 2 at. magnetic field strength 240 kA / m. As a result, an intense violet color is obtained.

17

Example 4 Clog Paper

the fabric is impregnated in a magnetic field with a strength of 160 kA / m with a dye solution containing, g / l; sernis, that blue 3 19; sodium sulphide 32; caustic soda 3; wetting agent 1-, water up to 1 l, squeezing to 100% weight gain, fixed in an environment of saturated water vapor at 102 ° C for 2 minutes, oxidized, washed and dried. The result is an intense blue color,

Example 5 A polyester fabric is impregnated in a magnetic field with a strength of 160 kA / m with a dyeing solution containing, g / l: dispersed bright pink 20; urea 150, water up to 1 l, squeeze to 100% weight gain, dry, fix with hot air at 220 ° C for 0.5 min, rinse and dry, The result is a permanent color of a bright pink color.

Example 6 Pure wool fabric is drilled in a magnetic field with a strength of 240 kA / m with a dye solution containing g / l: acid bright red H8C 9; acetic acid (85%) 15; solvitosis 6; wetting agent 6, water up to 1 l, squeezing up to 100 weight gain is fixed in the environment of fixed water vapor for 20 minutes, washed and dried. As a result, an intense color is obtained — a bright red color.

For comparison, dyeing is carried out in three ways: the fabric is impregnated with a wringer with a 00% dye solution prepared with ordinary process water (option 1); The fabric is pressed with a 100% dye solution prepared with process water, pretreated with a magnetic field of 320 kA / m for 40 minutes (option 2); the fabric is pressed with a 100% dye solution, pretreated into a mag - a nitric field of 320 kA / m strength before being fed into the impregnation bath (option 3, known).

In addition, the fabric of example 1 is processed at a magnetic field strength of 80 kA / m, which goes beyond the lower limit of the proposed interval, and in example 3, at a magnetic field strength of 280 kA / m, which goes beyond the upper limit. Use at impregnation of fabrics dye312327174

Invested with magnetic field solutions with textile dyes on textile stress values, outgoing materials by 6-18%; increase degree

fixing dyes by 2-7%; reducing the concentration of dyes in the technological solution by 5–15%; an increase in the strength of colorings to physicochemical effects by 0.5-1 points; range expansion

beyond the proposed interval, does not lead to the achievement of the goal,

The table shows the comparative data of the results of dyeing fabrics according to the proposed and known methods.

The proposed method, in comparison with textile materials and dye grades, provides an increase in occupants.

Editor N, .Gunko

Compiled by T. Kalinina

Tehred N, Bonkalo Correction. Syrohman

Order 2741/29 Circulation 455. Subscription

VNIIPI USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Table continuation

Claims (1)

METHOD FOR DYEING TEXTILE MATERIALS by impregnating a dye with an aqueous solution using magnetic treatment of the dye solution, washing and drying, which requires that, in order to increase the dye yield on the material and the degree of fixation, the dye solution is subjected to magnetic treatment and textile material in the process of impregnation at a magnetic field strength of 120 240 kA / m, followed by fixation of the dye at 102 - 220 ° C,