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Blue-to-black disperse dye composition

A technology of disperse dyes and blue dyes, applied in the direction of organic dyes, etc., to achieve the effect of improving labor productivity, pure color and light, soft and smooth hand feeling

Active Publication Date: 2012-10-24
ZHEJIANG LONGSHENG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in addition to the acid burnt-out printing style (transparent or translucent), the alkaline burn-out printing of polyester / rayon fabrics can show various colors in the ground color of the burn-out printing part, which is acid burn-out printing. unattainable

Method used

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  • Blue-to-black disperse dye composition
  • Blue-to-black disperse dye composition
  • Blue-to-black disperse dye composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 47 grams of formula (I-1) component A, 2.5 grams of formula (II-2) and 2.5 grams of formula (II-3) component B, 15 grams of formula (III-1) and 33 grams of formula (III-4 ) Component C, 200 grams of sodium lignosulfonate, mixed with 600 grams of water, ground and dispersed, dried to obtain the finished product. This dye is suitable for pretreatment and dyeing of polyester fibers and their blended fabrics under alkaline conditions Combined one-bath and one-step dyeing can provide fabrics with a uniform black color with good fastness properties.

Embodiment 2

[0038] After mixing 85 grams of formula (I-1) component A, 6 grams of formula (II-1) component B, 9 grams of formula (III-1) component C, 250 grams of dispersant MF, and 850 grams of water, Grind, disperse, and dry to obtain the finished product. This dye is suitable for one-bath and one-step dyeing of polyester fiber and its blended fabrics under alkaline conditions. color. Embodiment 3~13:

Embodiment 3~13

[0039] According to the method described in Example 1 or 2, the difference is that the 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%, grind and disperse, dry, and make the finished product. This dye is suitable for the one-bath one-step dyeing of polyester fiber and its blended fabrics under alkaline conditions. Uniform blue to black shade with good fastness properties. 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.

[0040]Table 1

[0041]

[0042]

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Abstract

The invention provides a blue-to-black disperse dye composition, which mainly comprises one or multiple blue dye ingredients A shown as the structure formula (I), one or multiple red dye ingredients B shown as the structure formula (II) and one or multiple orange dye ingredients C shown as the structure formula (III). The disperse dye composition has the advantages that the dying bottleneck of the existing ordinary disperse dye under the alkaline condition is broken through, the problems of white powder, color points and dyeing defect generation caused by the dyeing under the acid condition, the contamination on the inner wall of dyeing equipment caused by low polymers, and the like are solved, the dyeing quality is effectively improved, the stability and the reproducibility of the process are ensured, and the once success rate of the dyeing is improved. In addition, the prepared disperse dye has higher alkali resistance capability and can be applied to an alkali burnt-out process, the defect of single acid burnt-out color is overcome, and the requirements of the society on the aesthetic perception and the variety on clothing and decorations are met.

Description

(1) Technical field [0001] The invention relates to a blue to black disperse dye composition, which is suitable for printing and dyeing of hydrophobic fiber materials or alkaline burn-out process. (2) Background technology [0002] At present, the dyeing of polyester fibers is usually carried out under weak acidic conditions with disperse dyes, but the refining of polyester fibers before dyeing, alkali reduction, and soaping and reduction cleaning after dyeing are all carried out under alkaline conditions. . Therefore, when dyeing in an acid bath, it is easy to cause uneven dyeing, the pH value of the dye bath fluctuates widely, the change of shade is large, and the dyeing reproducibility is poor. [0003] Dyeing of disperse dyes under alkaline conditions can effectively remove the size and oil on polyester fabrics, overcome the shortcomings of other decomposition products such as polyester oligomers precipitated in acid baths and cause dyeing defects, often without reducti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/38C09B67/22
Inventor 章建新吕建君高怀庆宋瑜
Owner ZHEJIANG LONGSHENG GROUP
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