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Disperse blue-to-black dye composition

A technology for black dyes and dye compounds, applied in the field of disperse dye compositions, can solve the problems of few varieties of alkali-resistant disperse dyes and high prices, and achieve the effects of stable dyeing performance, good lifting power and excellent color fastness

Active Publication Date: 2015-02-25
ZHEJIANG LONGSHENG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Because there are few varieties of alkali-resistant disperse dyes, and the price is high

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

[0041] After mixing 47 grams of formula (I-1), 40 grams of formula (II-1), 13 grams of formula (III-1), 200 grams of dispersant MF, adding 550 grams of water, grinding, dispersing, and drying, the finished product is obtained , The finished product can provide fabric black tones.

Embodiment 2

[0043] After mixing 85 grams of formula (I-1), 10 grams of formula (II-1), 5 grams of formula (III-2), 250 grams of dispersant MF, and 600 grams of water, they are ground, dispersed, and dried to obtain the finished product. The finished product can provide fabric blue hue

Embodiment 3～28

[0045] According to the method described in Example 1 or 2, the difference is that the weight ratio of component A, component B, and component C in Table 1 and additives are used and mixed with water to form a slurry to control the solid content of the slurry. It is suitable to be 35-45%, grind, disperse, and dry to obtain a finished product, which can provide the fabric with uniform blue to black color tone with good fastness performance. 85A and 83A in Table 1 are lignin 85A and lignin 83A, respectively.

[0046] Table 1

[0047]

[0048]

[0049] Dyeing application 1:

[0050] Weigh 4g of the disperse dye prepared in Example 1 and disperse it in 500ml of water, absorb 20ml and mix with 100ml of water, adjust the pH to 12.5 with caustic soda, put 4g of polyester fabric, and heat to 70°C. Continue to increase the temperature to 130°C with a gradient of about 2°C / min, and keep the temperature for 45 minutes. Then cool to about 80℃, wash with hot water for 10 minutes, and dry. Th...

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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 blending of original dye and an auxiliary agent. The disperse blue-to-black dye composition is characterized in that the original dye comprises an ingredient A and an ingredient B and / or an ingredient C, the ingredient A is selected from one or more of dye compounds shown in the formula (I), the ingredient B is selected from one or more of dye compounds shown in the formula (II), the ingredient C is selected from one or more of dye compounds shown in the formula (III), the original dye comprises 30-95wt% of the ingredient A, 0-50wt% of the ingredient B and 0-30wt% of the ingredient C, and the ingredient B and ingredient C contents are not equal to 0 simultaneously. The disperse blue-to-black dye composition has a high color yield, good level-dyeing properties and good lifting force, can be used for dying in a system with a pH value of 4.0-14.0 and widely widens a disperse dye application scope.

Description

(1) Technical field [0001] The invention relates to a disperse dye composition, in particular to a disperse blue to black disperse dye composition with good alkali resistance. (2) Background technology [0002] Disperse dyes are applied under high temperature (125℃~135℃) conditions, there is a chemical stability problem. When the pH value of the dyeing bath is in the range of 3-6, the acid resistance and stability are good, and it is not easy to cause obvious color difference. However, when the pH of the dye bath is greater than 6, many commonly used disperse dyes will undergo a hydrolysis reaction, which makes the color lighter, the shade changes abnormally, and the alkali resistance stability is poor. [0003] In recent years, domestic dye manufacturers have introduced a series of alkali-resistant disperse dyes. In fact, most of them are selected from commonly used disperse dyes with better alkali resistance and stability. Such as: Zhejiang Runtu Co., Ltd. ADD series disperse ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/38D06P1/19D06P1/18D06P3/54
Inventor 汪仁良吕建君高怀庆阮萍萍欧其阮伟祥
Owner ZHEJIANG LONGSHENG GROUP
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