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Disperse dye composition suitable for basic dyeing

A technology for disperse dyes and compositions, applied in dyeing methods, organic dyes, textiles and papermaking, etc., can solve the problems of poor reproducibility of washing and dyeing effects, large fluctuation range of pH value, poor dyeing reproducibility, etc., to ensure stable Sex and repeatability, soft and smooth hand feel, the effect of improving the first-time success rate

Active Publication Date: 2013-02-13
浙江龙盛染料化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Uneven and insufficient refining, insufficient washing after refining and alkali reduction, will easily cause uneven dyeing when dyeing in an acidic bath, and the pH value of the dyeing bath fluctuates widely, which will lead to changes in shade and reappearance of dyeing poor sex
In addition, when dyeing in an acidic bath, unwashed pulp, oil, wax, and oligomers of polyester fibers are often precipitated to contaminate the inner wall of the dyeing machine, causing dyeing defects.
For this reason, under the market competition mechanism, the polyester fiber alkaline bath dyeing project has been launched internationally, and it has been continuously developed. Patents JP224884 / 1985, JP17183 / 1985 and DE3938631 have made public reports on this, but the above-mentioned method has not been applied in practice so far because of its poor reproducibility of washing and dyeing effects

Method used

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  • Disperse dye composition suitable for basic dyeing
  • Disperse dye composition suitable for basic dyeing
  • Disperse dye composition suitable for basic dyeing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Component A of 71 grams of formula (I-1), component B of 11 grams of formula (II-1), component C of 18 grams of formula (III-1), dispersant MF of 250 grams, add water 850 grams After blending, grinding, dispersing, and drying, the finished product can be obtained. This dye can provide uniform dark blue color to the fabric with good fastness.

Embodiment 2

[0036] Component A of 51 grams of formula (I-1), component B of 6 grams of formula (II-1), component C of 43 grams of formula (III-1), sodium lignosulfonate of 150 grams, add water After 600 grams of blending, grinding and dispersing, and drying, the finished product can be obtained. The dye can provide uniform and good black color to the fabric.

Embodiment 3～15

[0038] According to the method described in Example 2, the difference is that the structure and weight ratio of component A, component B, component C and auxiliary agents in Table 1 are used to make slurry after adding water and blending to control the solid content of the slurry It is suitable to be 35-45%. Grinding and dispersing, drying to obtain a finished product, can provide uniform dark blue or black tone to the fabric with good fastness. 85A and 83A in Table 1 are lignin 85A and lignin 83A respectively, and the weight unit of each component in A:B:C in Table 1 is g.

[0039] Table 1

[0040] implement

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PUM

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Abstract

The invention provides a disperse dye composition suitable for basic dyeing, mainly comprising the following raw materials in percentage by weight: 40-95 percent of one or a plurality of blue dyeing components A with a structural formula (I), 1-25 percent of one or a plurality of red dyeing components B with a structural formula (II) and 4-50 percent of one or a plurality of orange dyeing components C with a structural formula (III). The disperse dye composition has a wide dependency range of pH values, and can dye in a pH value ranging from 4.0 to 10; dyed and woven fabrics with predominant color-fastness performance, such as full hues, washing fastness, and the like, can be obtained.

Description

(1) Technical field [0001] The invention relates to a disperse dye composition, in particular to a dark blue to black disperse dye composition which can not only be dyed under conventional weak acid conditions, but also be suitable for dyeing hydrophobic fiber materials under alkaline conditions. (2) Background technology [0002] The dyeing of polyester fiber is usually carried out with disperse dyes under weak acidic conditions. The refining and alkali weight reduction of polyester fiber before dyeing, as well as the soaping and reduction cleaning after dyeing are all carried out under alkaline conditions. Uneven and insufficient refining, insufficient washing after refining and alkali reduction, will easily cause uneven dyeing when dyeing in an acidic bath, and the pH value of the dyeing bath fluctuates widely, which will lead to changes in shade and reappearance of dyeing Poor sex. In addition, when dyeing in an acidic bath, unwashed pulp, oil, wax, and oligomers of po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/38C09B67/22D06P1/18D06P3/54D06P3/85
Inventor 阮华森吕建君宋瑜
Owner 浙江龙盛染料化工有限公司
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