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Disperse black dye composition for superfine fiber

A dye composition and ultra-fine fiber technology, applied in the field of dyes, can solve the problems of dye migration to the surface, reduced wet treatment fastness, and high fiber amorphous content, and achieve the effects of good dye depth and high washing fastness.

Active Publication Date: 2014-05-14
HANGZHOU FLARIANT SPECIALTY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the requirements of ultrafine fiber production, the amorphous content in the fiber is high, especially when the fiber contains a finishing agent that has an affinity for the dye, it is easier for the dye to migrate to the surface in a humid and hot state, and it is easily affected by the molecular weight of some fibers. Lower buildup adsorption resulting in reduced fastness to wet handling

Method used

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  • Disperse black dye composition for superfine fiber
  • Disperse black dye composition for superfine fiber
  • Disperse black dye composition for superfine fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Mix 40g of disperse blue dye (component A) shown in I-1, 10g of disperse violet dye (component B) shown in II-2, 10g of disperse yellow dye (component C) shown in III-1, IV 10g of disperse yellow dye (component D) shown in -3, 30g of dispersant 85A (sodium lignosulfonate) was added to 200g of water, after continuous grinding, after spray drying, the finished product was packaged to obtain a disperse black dye composition for superfine fibers .

Embodiment 2-15 and comparative example 1-3

[0036] According to the ratio shown in Table 1, other operations are as in Example 1.

[0037] Table 1

[0038]

[0039]

Embodiment 16

[0041] Get the disperse dye that above-mentioned embodiment 1-15 and comparative example 1-4 make carry out printing and dyeing property test, test method is as follows:

[0042] Each get the disperse dye that 0.5g embodiment 1-15 and comparative example 1-4 make, make the disperse dye suspension that concentration is 1.0g / L respectively with water, get 20mL disperse dye suspension and mix with 80mL water, wash with acetic acid Adjust the pH to 4.5-5.0, then raise the temperature to 60°C, add 2g of polyester microfibers for dyeing, raise the temperature to 130°C within 35 minutes, keep the temperature for 30 minutes, and take samples when cooled to 80°C. Observe the shade of the cloth sample and measure its color fastness using GB / T3921, GB / T3920-1997, GB / T5718-1997, and measure the dye uptake rate by GB / T9337-2009. The measurement results are shown in Table 2

[0043] Table 2 Unit: Grade

[0044]

[0045]

[0046] The three components A, B, C, and D of the present inv...

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Abstract

The invention relates to the field of a dye, and particularly relates to a disperse black dye composition for a superfine fiber. The disperse black dye composition for the superfine fiber is characterized by comprising the following components by mass percent: 10-60% of dye component A shown in a general formula (I), 10-40% of dye component B shown in a general formula (II), 10-30% of dye component C shown in a general formula (III), 10-30% of dye component D shown in a general formula (IV) and 5-45% of dispersant. By adopting the disperse black dye composition for the superfine fiber provided by the invention, the defect of low wet color fastness of the superfine fiber is overcome, and the novel dye with good deep dyeing fastness and high washing fastness has important significance.

Description

technical field [0001] The invention relates to the field of dyes, in particular to a disperse black dye composition for superfine fibers. Background technique [0002] When disperse dyes dye superfine fibers, the fastness to wet treatment decreases significantly. The reason is that the surface area of ​​superfine fibers is significantly larger than that of conventional fibers, and the cross-section is irregular, which is easy to be contaminated with dyes. At the same time, compared with conventional fibers, to obtain the same dyeing depth, the amount of ultrafine fibers is greatly increased, and the amount of unfixed dye is also large, so it is difficult to wash, that is, the wet fastness of ultrafine fibers is lower than that of conventional fibers. In addition, due to the requirements of ultrafine fiber production, the amorphous content in the fiber is high, especially when the fiber contains a finishing agent that has an affinity for the dye, it is easier for the dye to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/38
Inventor 李百春
Owner HANGZHOU FLARIANT SPECIALTY
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