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Disperse blue-to-black dye composition

A black dye and composition technology, applied in the direction of organic dyes, etc., can solve the problems of too sensitive pH value, poor vat, and unstable dyeing, etc., and achieve a wide range of pH resistance, outstanding alkali resistance, and excellent color fastness. Effect

Active Publication Date: 2015-03-04
ZHEJIANG LONGSHENG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor alkali resistance of disperse dyes, they are too sensitive to the pH value, which is prone to poor tank quality, unstable product quality, and cannot be dyed stably in a strong alkali (such as NaOH) system.

Method used

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  • Disperse blue-to-black dye composition
  • Disperse blue-to-black dye composition
  • Disperse blue-to-black dye composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment l

[0043] Mix 55 grams of formula (I-1), 45 grams of formula (Ⅲ-1), 250 grams of dispersant MF, and add 550 grams of water, grind and disperse and dry to obtain the finished product, which can provide fabric black tone .

Embodiment 2

[0045] Mix 75 grams of formula (I-1), 18 grams of formula (III-1), 7 grams of formula (V-1), 200 grams of dispersant MF, add 550 grams of water, grind, disperse and dry to obtain the finished product. The finish provides a blue shade to the fabric.

Embodiment 3～32

[0047] According to the method described in Example 1, the difference is that component A, component B and auxiliary agents of the weight shown in Table 1 are used, and water is added to blend to make a slurry, and the solid content of the control slurry is 35 to 45%. It is advisable to grind and disperse and dry to obtain disperse dyes, which are suitable for one-bath and one-step dyeing of polyester fibers and their blended fabrics under alkaline conditions and combined pretreatment and dyeing.

[0048] Table 1

[0049]

[0050]

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PUM

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Abstract

The invention discloses a disperse blue-to-black dye composition. The disperse blue-to-black dye composition is obtained by mixing of original dye and auxiliary agents. The original dye comprises 40-99wt% of an ingredient A and 1-60wt% of an ingredient B. The ingredient A comprises one or more materials shown in the formulas (I)-(II) and the ingredient B comprises one or more materials shown in the formulas (III)-(V). The disperse blue-to-black dye composition has a wide pH-resistant range and excellent various fastness, has stable color and gloss in a strong base bath, is a hard-won strong base-resistant disperse dye and can be used for alkaline burnt discharge.

Description

(1) Technical field [0001] The invention relates to a disperse dye composition, in particular to a disperse blue to black dye composition. (2) Background technology [0002] The pretreatment of polyester fabrics is carried out under alkaline conditions, while the dyeing process of polyester disperse dyes is generally dyed under acidic conditions, so neutralization and full washing are required before dyeing, which makes the whole wet treatment process take a long time. Moreover, if the refining or alkali reduction is not handled properly, or if the washing is insufficient and the alkali is present, there will often be quality problems in dyeing under acidic conditions, and the dyeing reproducibility is poor. Therefore, if a disperse dye suitable for dyeing under alkaline conditions can be found, the dyeing process will be simpler and the dyeing process more reasonable. This has laid a good foundation for the factory to save energy, reduce emissions and reduce costs. At the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/38
Inventor 高怀庆吕建君汪仁良邱雯欧其阮伟祥
Owner ZHEJIANG LONGSHENG GROUP
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