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Blue coupling type disperse dye compound and application thereof

A technology of disperse dyes and compounds, applied in organic dyes, dyeing methods, textiles and papermaking, etc., can solve the problems of difficulty in diffusion, low dyeing rate, and failure to achieve results.

Active Publication Date: 2021-06-22
SHAOXING UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The imitation suede fabric is composed of microfiber tissue layer and polyurethane base. It has a large thickness and a relatively compact structure. When coupling disperse dyes are used for dyeing imitation suede fabrics, the diffusion is difficult due to the large molecule, and the dyeing rate Low, the addition of special dyeing auxiliaries can improve the above problems to a large extent, and the dyeing will deepen, but the desired effect has not yet been achieved, and further improvement is needed

Method used

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  • Blue coupling type disperse dye compound and application thereof
  • Blue coupling type disperse dye compound and application thereof
  • Blue coupling type disperse dye compound and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: the impact of compounding in different proportions on dyeing

[0033] Two blue coupled disperse dyes are mixed and used, and different mass ratios are changed to dye suede fabrics. The total dye concentration is 2% (o.w.f), the dyeing assistant concentration is 1g / L, and the ammonium sulfate is 1g / L, the liquor ratio is 30:1. After the dyeing solution is prepared, start dyeing at 60°C, first raise the temperature to 80°C at a rate of 3°C / min, adjust to 1°C / min and raise the temperature to 110°C, then raise the temperature to 130°C at 2°C / min, keep warm for 30 minutes and After 60 minutes, cool down to 80°C and drain water, then inject water and raise the temperature to 85°C for reduction cleaning for 15 minutes, after washing twice, drain the cloth and dry it. The apparent color depth values ​​of the dyed samples at different wavelengths were measured separately, and the absorption spectrum curves (λ~K / S) of the dyed samples with different mass ratios we...

Embodiment 2

[0045] Embodiment 2: the influence of different dyeing processes on the dyeing effect

[0046] Dye with the above-mentioned best compound (disperse blue HF-2V: disperse blue HF-V mass ratio of 3:7 or 2:8) as the dye, and conduct experiments on the confirmation process of each parameter of the dyeing process, as follows:

[0047] When the dye compound concentration is 2% (o.w.f), change the concentration of dispersant MF, ranging from 0-2.5g / L, and the concentration of dyeing assistant (the mass ratio of hyperdispersant Solsperse20000 to penetrant AEP is 4:6) is 1g / L, ammonium sulfate 1g / L, bath ratio is 30:1, dyeing temperature rise control is the same as embodiment 1, and is incubated 60min. After dyeing, the apparent color depth values ​​of the dyed samples at the maximum absorption wavelength were measured respectively, and the obtained results are shown in Figure 4 shown.

[0048] From Figure 4 It can be seen that when the amount of dispersant is 0-2g / L, the K / S valu...

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Abstract

The invention provides a blue coupling type disperse dye compound and an application thereof, and belongs to the technical field of organic dyes formed by mixing different dyes. The blue coupling type disperse dye compound is prepared by mixing a p-phenylene diisocyanate coupling type blue disperse dye and a terephthaloyl chloride coupling type blue disperse dye. The blue coupling type disperse dye compound is applied to dyeing of fabrics, especially chamois suede, the color depth value of dyeing of the coupling type disperse dye is increased within the conventional dyeing temperature and time, the high color depth value is obtained, and the good color fastness performance is achieved.

Description

technical field [0001] The application relates to a blue coupled disperse dye compound and its application, and belongs to the technical field of organic dyes formed by mixing different dyes. Background technique [0002] Coupled disperse dyes are coupled with two disperse dyes containing one active reactive group (hydroxyl or amino group) through a compound with a bifunctional group (diisocyanate or diacid chloride compound, etc.), which has a larger molecular weight , which increases the intermolecular force between dye molecules and fiber macromolecules, thereby increasing its affinity and heat migration resistance, showing high wet fastness and sublimation fastness performance, suitable for ultrafine fibers and polyurethane-based Polymer dyeing. [0003] The imitation suede fabric is composed of microfiber tissue layer and polyurethane base. It has a large thickness and a relatively compact structure. When coupling disperse dyes are used for dyeing imitation suede fabri...

Claims

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Application Information

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IPC IPC(8): C09B67/38C09B67/20D06P1/18D06P1/52D06P1/60D06P1/613
CPCC09B67/008C09B67/0065D06P1/18D06P1/5271D06P1/60D06P1/525D06P1/5221D06P1/6133
Inventor 钱红飞钱蕾钱国春
Owner SHAOXING UNIVERSITY
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