A kind of disperse dark blue dye composition for superfine fiber

A dye composition, a technology for dispersing dark blue, applied in the field of dyes, can solve the problems of reduced wet treatment fastness, dye migration to the surface, high amorphous content of fibers, and achieve the effects of high washing fastness and good dye depth.

Active Publication Date: 2016-06-22
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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  • A kind of disperse dark blue dye composition for superfine fiber
  • A kind of disperse dark blue dye composition for superfine fiber
  • A kind of disperse dark blue dye composition for superfine fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2-15 and comparative example 1-4

[0034] According to the ratio shown in Table 1, other operations are as in Example 1.

[0035] Table 1

[0036]

[0037]

Embodiment 16

[0039] Get the disperse dye that above-mentioned embodiment and comparative example make carry out printing and dyeing property test, test method is as follows:

[0040] 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 the water mixing of 20mL disperse dye suspension and 80mL, use Adjust the pH to 4.5-5.0 with acetic acid, 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 color uptake of the dye by GB / T9337-2009. The measurement results are shown in Table 2.

[0041] Table 2 Units: Grade

[0042]

[0043]

[0044] The three components A, B, C, and D of the presen...

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PUM

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Abstract

The invention relates to the field of dyes, particularly to a dispersive dark blue dye composition for superfine fiber. The dispersive dark blue dye composition comprises the following components in percentage by weight: 30% to 70% of dye composition A shown in a formula (I), 10% to 30% of dye composition B shown in formula (II), 10% to 20% of dye composition C shown by formula (III), and 0% to 20% of dye composition D shown by formula (IV) and 10-15% of a dispersive agent. The superfine fiber dispersive dark blue dye composition has the advantages that the defect of low wet fastness of superfine fiber is overcome, the deep dyeing is good, and the washing fastness is high.

Description

technical field [0001] The invention relates to the field of dyes, in particular to a disperse dark blue 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22D06P1/18D06P1/19D06P3/54
Inventor 李百春
Owner HANGZHOU FLARIANT SPECIALTY
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