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Composite discharge printing dispersion dyes

A technology for disperse dyes and discharge printing, applied in the field of dyes, can solve the problems of poor compatibility, difficulty in achieving reproducibility and whiteness, and achieve good rubbing fastness, good reducible dye discharge, and bright colors. Effect

Active Publication Date: 2009-08-19
ZHEJIANG RUNTU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the existing composite dyes that can be used for discharge printing generally have poor compatibility between the components, because the compatibility requirements between the components of the composite dye are particularly high during the discharge printing process, otherwise it is difficult to achieve good reproducibility and whiteness

Method used

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  • Composite discharge printing dispersion dyes
  • Composite discharge printing dispersion dyes
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8

[0035] According to the data shown in Table 1, after mixing each monomer component with water and auxiliaries, disperse and grind with a sand mill, and then spray dry to obtain a compound discharge printing disperse dye.

[0036] Table 1 Unit: Gram

[0037]

[0038]

Embodiment 9-20

[0040] According to the data shown in Table 2, after mixing each monomer component with water and auxiliaries, disperse and grind with a sand mill, and then spray dry to obtain a compound discharge printing disperse dye.

[0041] Table 2 Unit: Gram

[0042]

[0043]

[0044] The unit of data in Table 2 is: gram.

[0045] Dye monomer (1) can be prepared by the following method:

[0046] Put 50g of water in a 250ml flask, start stirring, put in 10g of p-nitroaniline, put in 25kg of 30% industrial hydrochloric acid, beat for 2 hours, add ice to cool down to 0°C, and directly mix 5g of sodium nitrite into 30% nitrite Put the sodium solution into a flask, the temperature does not exceed 5°C, then keep stirring at 0-5°C for 1 hour and filter for use. Add 50g of water, 5g of sulfuric acid, 13g of N-cyanoethyl-N-hydroxyethylaniline, 0.3g of urea, and 0.1g of urea in a 1000ml beaker, add ice and cool to about 2°C, and couple with the above diazo solution, The coupling temperat...

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Abstract

The invention discloses a complex discharge printing disperse dye. The comprised components and their weight proportion are as follows: dye monomer (1) 1- 25%, shown in formula (I); dye monomer (2) 5- 40%, shown in formula (II); dye monomer (3) 1- 15%, shown in formula (III); dye monomer (4) 0- 10%, shown in formula (IV); and the left are adjuvant. The discharge printing disperse dye is especially suitable for printing and dyeing for terylene, artificial silk fabric, chamois flannel and corduroy. It is characterized by good reduction discharge, good printing effect of bright color, fine pattern and clear shape, possibility for printing in part area and light printing on dark cloth. The repeatability is good and thermal- resistant mobility is small.

Description

technical field [0001] The invention relates to a dye, in particular to a discharge printing disperse dye compounded from disperse dyes. technical background [0002] With the continuous improvement of pattern requirements, the outline definition and pattern fineness of direct printing are limited to a certain extent, and discharge dyes just solve this problem. The pattern printing effect of this discharge dye is much better than that of direct printing, especially it can print light-color patterns and patterns on dark fabrics, and it can also discharge printing on imitation silk fabrics. [0003] However, most of the existing composite dyes that can be used for discharge printing generally have poor compatibility between the components, because the compatibility requirements between the components of the composite dye are particularly high during the discharge printing process, otherwise it is difficult to achieve good reproducibility And whiteness. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/38C09B67/36D06P1/18D06P5/15
Inventor 赵国生方标顾伟娣赵迪明罗党生
Owner ZHEJIANG RUNTU
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