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Acid dye composition

A technology for acid dyes and compositions, applied in the direction of organic dyes, etc., can solve the problems such as no patents for dye compositions have been published, and achieve the effect of improving the fastness to wet treatment

Inactive Publication Date: 2008-04-30
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, there has been no publication of a patent on a dye composition consisting of acid dyes, adjuvants and stabilizers derived from natural products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh 200g of C.I. Acid Orange 116 (200%), 150g of maltodextrin, and 1g of benzoic acid, and mix them uniformly to obtain 351g of a high-performance acid dye composition. When the dye composition is used for dyeing polyamide fibers, it can achieve 100% exhaustion rate and excellent fastness performance.

[0036] Example 1~10.

[0037] In example 1~10, the percentage by weight of each component is as shown in the table below:

[0038] example

Embodiment 2

[0040] Weigh 200g of C.I. Acid Red 114 (300%), 200g of enzyme-catalyzed hydrolyzed starch, and 1.2g of benzoic acid, and mix them uniformly to obtain 401.2g of a high-performance acid dye composition. The dye composition is used for dyeing Taslon (Taslon) fiber, which can achieve 100% exhaustion rate and excellent fastness performance. The ratio of four or more sugars in the enzyme-catalyzed hydrolyzed starch is 85-100%, trisaccharides are 0-15%, disaccharides are 0-10%, and monosaccharides are 0-5.0%.

[0041] Example 11~20.

[0042] In example 11~20, the percentage by weight of each component is as shown in the table below:

[0043] example

Embodiment 3

[0045] Weigh 200g C.I. Acid Red 114, 40g Acid Red 361 raw dye, 60g enzyme-catalyzed hydrolyzed starch, 0.9g benzoic acid, and mix evenly to obtain 300.9g high-performance acid dye composition. When the dye composition is used for dyeing polyamide fibers, it can achieve 100% exhaustion rate and excellent fastness performance. Enzyme-catalyzed hydrolysis of starch with the proportion of tetrasaccharides and above 80-100%, trisaccharides 0-20%, disaccharides 0-15%, monosaccharides 0-1.0%; monosaccharides form polysaccharides with 1, 4, 1, 6 glycosidic bonds

[0046] Example 21~30.

[0047] In example 21~30, the percentage by weight of each component is as shown in the table below:

[0048] example

[0049] 26

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PUM

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Abstract

An acid dye compound is prepared by taking weak acid dye, natural assistant and stabilizer as raw material and mixing to obtain final product. It has higher absorptive rate, better biological degradability and washing fastness.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, in particular to a kind of acid dye composition. Background technique [0002] Polyamide fibers are usually dyed with weak acid dyes in a weak acid bath. Nylon fibers are dyed with weak acid dyes. Due to the high affinity of dye molecules to fibers, most of the dyeing rate is 80~90%. After dyeing, add appropriate amount color fixing agent. However, due to the fast coloring and poor migration of weak acid dyes, anionic surfactants are often added to the dye bath as leveling agents. Adding different leveling agents will lead to different degrees of decline in exhaustion rate. [0003] In order to achieve high dye uptake rate and high fastness of dyed products when dyeing with weak acid dyes, additives from natural products can be added to the dye, which can increase the stability of the dye solution, improve the dye uptake rate and dyeing The wet fastness performance of polyamide fiber...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/24
Inventor 吕荣文高崑玉王维民
Owner DALIAN UNIV OF TECH
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