SU1386686A1 - Composition for dyeing cotton fabrics - Google Patents

Abstract

The invention relates to the field of dyeing and finishing production, in particular, to dyeing cotton fabrics with vat dyes. The use of liquid ammonia and acetanilide in cubic paints for the suspension method of dyeing with cubic dyes increases the dye yield from 1.59 to 3.32 g / kg of fabric and increases the resistance of the dye to wet wiping from 3 to 4 points. 1 tab.

Description

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This invention relates to dyeing and finishing production, in particular to a composition for dyeing cotton fabrics with vat dyes.

The purpose of the invention is to increase the yield of the dye on the fiber and increase the color stability to wet wiping.

Example 1. Unprepared cotton (about the fabric is treated with a dye composition containing, g / l

Vat dye

brand D20

Acetanilide 60

Liquid ammonia Up to 1 l

The formulation is prepared by dissolving acetanilide in liquid ammonia, followed by dye addition with stirring and adjusting the suspension with liquid ammonia to 1 liter. .

The fabric impregnated with this composition for 5 s at -40 ° C is squeezed, dried and treated with a rongalite-based quenching solution, then steamed for 10 min, washed and dried,

The dye content is 2.88 mg / g of fabric, the color resistance to wet (Mu wiping 4 points.

Example 2. Unprepared cotton fabric treated with dye composition containing, g / l:

Vat dye

brand D22

Acetanilide 80

Liquid ammonia up to g l

The preparation of the composition and further processing of the fabric is similar to example 1. The dye content is 3.32 mg / g of fabric, the color resistance to wet wiping is 4 points

PRI me R 3. Unprepared cotton fabric treated with dye composition containing, g / l:

Vat dye

makri d.

Acetanilide 120

Liquid ammonia Up to 1 l

The preparation of the composition and further processing of the fabric is similar to Example 1. The dye content is 2.72 mg / g of fabric, the color resistance to wet wiping is 4 points.

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Example 4. Unprepared cotton fabric is treated with dye composition containing, g / l: D27 mark

Acetanilide160

Liquid ammonia Up to 1 l. The preparation of the composition and further processing of the fabric is similar to Example 1. The dye content is 2.68 mg / g of fabric, the color fastness to wet is 4 points for wiping.

Example 5. Unprepared cotton fabric is treated with dye composition containing, g / l: D18 mark

Acetanilide 40

Liquid ammonia Up to 1 l. The preparation of the composition and further processing of the fabric is similar to Example 1. The dye content is 2.3 mg / g of fabric, the resistance of dye to wet wiping is 4 points.

Example 6. Unprepared cotton fabric is treated with a dye composition containing, g / l: D20 mark

Shd ammonia Up to 1 l Composition is prepared by introducing a dye into liquid ammonia with stirring. Further; fabric treatment is similar to example 1. The dye content is 2.12 fabric, the color fastness to wet wiping is 3 points.

The dye yield is determined by colorimetry. acidic hydrosols and color resistance to wet wiping.

The test results are presented in the table.

Suggested by example

one

2.88 3.32

313866864

Claims (1)

Continuation of the Table of Invention Formula 2.72 2.68 2.3 2.12 1.59 4 4 4 3 3 A composition for dyeing cotton fabrics, containing a cubic dye and a liquid phase, characterized in that, in order to increase the dye yield on the fiber and make the coloring resistance to wet wipe, it contains liquid ammonia and, in addition, acetanilide the ratio of components, g / l: Kubovy dye 20-25 Acetakilid60-120 Liquid ammonia Up to 1 l