Disperse dye

A technology of disperse dyes and dye monomers, applied in organic dyes, dyeing methods, textiles and papermaking, etc., can solve the problems of long use time, inability to adapt to fast dyeing, poor coloring rate at low temperature, etc., and achieve a flat coloring curve , good leveling and lifting properties, excellent fastness performance

Active Publication Date: 2009-12-02
JIANGSU D I A N CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the products of C.I. Disperse Yellow 23 that have appeared on the market and have been used for a long time include Disperse Yellow SE-RGFL and Disperse Yellow SE-4RL produced by Zhejiang Shanyu Dyestuff Chemical Co., Ltd. The latter has been listed as a military supply of the General Logistics Department. Fixed-point products, but the main problem of the above-mentioned products is that the low-temperature coloring rate is poor, and they cannot adapt to the growing rapid dyeing in China

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0027] According to the data shown in Table 1, dye monomer A, dye monomer B, dye monomer C, dye monomer D, auxiliary agent (dispersant methylnaphthalenesulfonic acid formaldehyde condensate (MF) or diffusing agent benzylnaphthalene Sulfonate formaldehyde condensate (CNF) or diffusing agent naphthalenesulfonate formaldehyde condensate (NNO) or sodium lignin sulfonate) is added with water, blended and beaten, then ground and dispersed with a sand mill, then spray-dried and packaged.

[0028] Table 1

[0029] Example name

Embodiment 7～10

[0031] According to the data shown in Table 2, monomer A commercial dye (commercial dye, monomer A content about 55%), monomer B commercial dye (commercial dye, monomer B content about 42%), dye monomer C commercial dye ( content about 60%), dye monomer D commercial dyes (content about 50%), additives (dispersant methylnaphthalenesulfonic acid formaldehyde condensate (MF), diffusing agent naphthalenesulfonic acid formaldehyde condensate (NNO), lignin Sodium sulfonate) directly blended.

[0032] Table 2

[0033]

Embodiment 11

[0035] Each 1 gram of the disperse dyes prepared in Examples 1 to 10 was dispersed in 500 milliliters of water, mixed with 180 milliliters of water after absorbing 20 milliliters, prepared 10 times and put into 10 dye vats, adjusted with acetic acid and sodium acetate buffer solution. The pH of the dyeing bath is 5-5.5. At the same time, 1 gram of polyester fiber is put in for dyeing, and the temperature is raised from room temperature to 130° C. within 90 minutes, and the temperature is kept for 20 minutes. During this heating process, take a dye vat every 10°C from 50-130°C to test the residual absorbance of the dye solution, and take a dye vat every 10 minutes above 130°C to test the residual absorbance of the dye solution. The test results are shown in the figure below :

[0036] temperature(℃)

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Abstract

The invention relates to a disperse dye, which is particularly applicable to the printing and dyeing of polyester materials and acetate fiber materials. The disperse dye consists of the following components in percentage by weight: 10 to 60 percent of dye monomer A, 5 to 20 percent of dye monomer B, 5 to 20 percent of dye monomer C, 50 to 20 percent of dye monomer D, and assistant. A product of the disperse dye has excellent dyeing property, wide pH adaptability, good consistency and compatibility with other low-temperature dyes in particular, and smooth dye uptake curve.

Description

technical field [0001] The invention relates to a multi-component blending type disperse dye, which is especially suitable for printing and dyeing polyester materials and acetate fiber materials. Background technique [0002] Since the European Union listed disperse yellow RGFL as a prohibited dye, the search for substitutes that can replace disperse yellow RGFL has been carried out in China. Because the original disperse yellow RGFL has good application performance and a wide range of application bases, the varieties developed by various manufacturers are based on The shade close to RGFL is the standard, while paying attention to low-temperature dye uptake and compatibility with other low-temperature dyes. [0003] At present, the products of C.I. Disperse Yellow 23 that have appeared on the market and have been used for a long time include Disperse Yellow SE-RGFL and Disperse Yellow SE-4RL produced by Zhejiang Shanyu Dyestuff Chemical Co., Ltd. The latter has been listed a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/38C09B67/22D06P1/16D06P3/54D06P3/40
Inventor 陶国来
Owner JIANGSU D I A N CHEM CO LTD
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