SU1199848A1 - Method of printing on knitted fabric of triacetate fibre - Google Patents

Abstract

A METHOD FOR PRINTING A KNITTED MATERIAL FROM A TRIACETTE FIBER by applying a printed composition based on a cationic dye, auxiliary substance, thickener, defoamer, and water, followed by fixation of the dye on the material and rinsing with a process, in order to simplify the technological process, to simplify the process, a technological process will be applied. while maintaining the strength characteristics of the coloration, caprolactam is introduced into the printing composition as an auxiliary substance in the following ratio of components, wt%: Cationic 0, 5-1,5 tel 7,5-10,0 Caprolactam 68,0-71,5 Thickener JV 0.5 Antifoam Water Else With and fixing the dye is carried out at 102103 0.

Description

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The invention relates to the dyeing and finishing industry, in particular to methods for printing knitted material from triacetate fiber with cationic dyes. The purpose of the invention is to simplify the process and improve working conditions while maintaining strength properties.

,; H Ti.-;

 mer,. "Knitted polono from TAC-fiber print printed KR9SKOY of the following composition:

; Cationic / kgmas.% Dye

orange G15,1,5

Zagustka from ma - 68068,0 nuteks PC

2.5% to 68068.0

Caprolactam100.10,0

Water heat 20020.0 Antifoam

ShS-21-2A50,5

The printing ink is prepared by dissolving the dye and caprolactam in warm (50 ° C) water, after which the thickener and defoamer are added with stirring. The paint on the canvas lies flat and provides a clear outline of the pattern.

The printed samples were steamed for 20 minutes at 102-103 ° C and washed first in cold water, then washed for 20 minutes in a solution of fine detergent (TMS) 2 g / l at 60 ° C and again washed in warm and cold water, after which they are dried. Samples are colored deep orange and the background of the pattern remains pure white. Indicators of the strength of paint: to the light 5; to diets, water 5/5/5; to the soap solution 5/5/5; to sweat 5/5/5; to dry friction 5; to wet friction 5. The amount of cationic dye fixed on the fiber is 80.4%.

1998482

When varying caprolactam in printing ink in the amount of 80, 90 and PO g / kg, the dye fixation on the fiber is 74.2 ;, 76.1 and 80.3% 5, respectively, i.e. the amount of caprolactam 100 g per 1 kg of printing ink containing 15 g / kg of dye provides the maximum dye yield per fiber (80.4%).

10 Example 2. Knitted polio from TAC-fiber print ink composition:

g / kg

wt.%

five

0.5

75 7.5200 20.0

s PC

715 5

71.5 l 0.5

The paint on the canvas lies flat and provides a clear outline of the pattern.

The printed samples are steamed for 20 minutes at 102-103 s, washed and dried. Samples are obtained, painted in a light orange color, the background of the picture is white. Paint strength characteristics: to 5/5/5; to the soap solution 5/5/5; to sweat 5/5/5; to dry friction 5; to wet friction 5.

Depending on the amount of caprolactam in printing ink, the following indicators of dye fixation on the fiber were obtained: 70.2% at a concentration of caprolactam 60 g / kg; 76.7% at a concentration of 65 g / kg, 82.1% at a concentration of 75 g / kg; 82.0% at a concentration of 80 g / kg.

The table shows the characteristic of TAC-dye stains with cationic dyes.

Thus, a caprolactam concentration of 75 g per 1 kg of printing ink containing 5 g / kg of dye is optimal.

The use of the proposed printing method provides a comparison. The following advantages are known: the simplification of the process of printing articles from TAC-fiber by cationic dyes; simplifying the process of preparing printing ink by reducing the number of components in its composition and introducing caprolactam, which is easily soluble in water, even at room temperature and facilitates the dissolution of the dye; exclusion from the composition of printing ink substances that are toxic to human health (ie, the improvement of working conditions) and destroy the kersey of the printing machine; lowering the fixation temperature of cationic dyes on the TAC-material from 120 to 102-103 C allows conventional steam mounts to be fixed on the dye fiber, in which printed products are steamed at a water vapor saturation temperature, and exclude the obligatory use of a high-temperature or conventional maturing powder, additionally equipped with a special device for raising the temperature, obtaining a white background in the drawings on the TAC-material without using the rinse with bleaching agents. In addition, the proposed method allows to increase the degree of fixation of cationic dyes on the TAC-material while maintaining the strength of the color.

Claims (1)

(54) (57) METHOD FOR PRINTING KNITTED MATERIAL FROM TRIACETATE FIBER by applying a printing composition based on cationic dye, excipient, thickener, antifoam and water, followed by fixing the dye on the material and washing, characterized in that, in order to simplify technological process and improving working conditions while maintaining strength indicators, color, caprolactam is introduced into the printing composition as an auxiliary substance in the following ratio of components, wt.%: Cationic dye Caprolactam Thickener Defoamer Water 0.5-1.5 7.5-10.0 68.0-71.5 0.5 The rest and fixation of the dye is carried out at 102103 ° C.