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Dispersed black dye composition

A technology of dye composition and disperse black, which is applied in the fields of organic dyes, dyeing methods, textiles and papermaking, and can solve problems such as poor fastness, deep dyeing, insufficient lifting power, and staining on white backgrounds.

Inactive Publication Date: 2007-07-18
浙江龙盛染料化工有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the use of black azo disperse dyes is very extensive, but a single black disperse dye often has the disadvantages of deep dyeing, insufficient lifting power, and poor fastness performance. Serious bottom staining

Method used

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  • Dispersed black dye composition
  • Dispersed black dye composition
  • Dispersed black dye composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Add 49.1 grams of component A of formula (I-1), 9.4 grams of component B of formula (II-1), 41.5 grams of component C of formula (III-1), 195 grams of sodium lignosulfonate, and add water After mixing and mixing, use a grinder to grind and disperse, and spray dry to obtain the finished product. The dye can provide the fabric with deep black with excellent fastness properties.

[0044]

Embodiment 2～13

[0046] According to the data shown in Table 1, after mixing component A, component B and component C, additives, and water, they are ground and dispersed with a grinder, and then spray-dried to obtain a finished product.

[0047] Table 1

[0048] Real

Embodiment 21

[0049] Example 21 (ordinary dyeing):

[0050] Disperse 0.5 g of the disperse dyes prepared in Examples 1 to 20 in 500 ml of water, absorb 20 ml, mix with 60 ml of water, adjust the pH of the dye bath with acetic acid to 5, heat up to 60 ℃ and put 2 g of poly The ester fiber is dyed. The temperature is increased from 60°C to 130°C within 45 minutes, and the dyeing is continued after reaching 130°C for 60 minutes. After dyeing, the heating is stopped, and the dye sample is cooled to 90°C. The dyed sample is washed in cold water, reduced and dried. Observe the color of the sample cloth, use the national standard GB / T3921-1997, GB / T3920-1997, GB / T3922-1997, GB / T8427-1998 to test its washing fastness (60℃) ≥ grade 4 and rubbing fastness ≥ Grade 4 to 5, fastness to perspiration ≥ Grade 4 to 5, fastness to sunlight ≥ Grade 6.

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PUM

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Abstract

The present invention provides one kind of disperse black dye composition comprising one or several red dye component A's in the structure as shown in 30-90 wt%, one or several purple dye component B's in the structure in 1-15 wt% and one or several purple dye component C's in the structure in 5-60 wt%. The disperse black dye composition may be prepared into liquid with particle, emulsion, powder or granule. When it is used in dyeing polyester fiber material and the components are regulated properly, excellent black dyed fabric with bright color, excellent dispersivity, sunfastness, wash fastness, etc may be obtained.

Description

(1) Technical field [0001] The invention relates to a disperse black dye composition, in particular to a composite disperse black dye for polyester fiber printing and dyeing. (2) Background technology [0002] Azo disperse dyes are an important class of dyes, which have the characteristics of bright color and excellent fastness. They are widely used in printing and dyeing industry because of their color, variety, and performance. Among them, black azo disperse dyes are widely used, but a single black disperse dye often has the disadvantages of deep dyeing, insufficient lifting power, and poor fastness performance. Especially when used in textile printing, it causes whiteness due to poor sublimation fastness. The bottom is stained badly. [0003] In order to obtain black disperse dyes with excellent dyeing properties such as deepness, lifting power, and sublimation fastness, attempts have been made such as US patent US6159249, Korean patent KR0156834, KR95029349, KR2000060609 and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/38C09B67/36D06P1/18D06P3/52
Inventor 阮伟祥欧其阮华森
Owner 浙江龙盛染料化工有限公司
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