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An orange coupling type disperse dye compound and its dyeing process

A technology of disperse dyes and complexes, applied in the field of organic dyes, can solve the problems of low dye uptake, difficulty in diffusion, and deepening of dyeing

Active Publication Date: 2022-07-08
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 superfine fiber tissue layer and polyurethane base. It has a large thickness and a relatively compact structure. When the coupled disperse dye is used for dyeing the imitation suede fabric, it is difficult to diffuse due to the large molecule, and the dyeing The dyeing rate is low; adding special dyeing auxiliaries, although the above-mentioned dyeing problem can be greatly improved and the dyeing can be deepened, the desired effect has not yet been achieved

Method used

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  • An orange coupling type disperse dye compound and its dyeing process
  • An orange coupling type disperse dye compound and its dyeing process
  • An orange coupling type disperse dye compound and its dyeing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: The effect of compounding in different proportions on dyeing

[0031] Two orange conjugated disperse dyes are used in combination, changing different mass ratios, to dye suede fabrics, the total concentration of dyes is 2% (o.w.f), the quality of dyeing auxiliaries (super dispersant Solsperse20000 and penetrant AEP) The ratio is 4:6) the concentration is 1g / L, the ammonium sulfate is 1g / L, and the bath ratio is 30:1.

[0032] After the dye solution is prepared, see figure 1 The dyeing process curve shown is dyed: dyeing at 60 °C, first heating to 80 °C at a rate of 3 °C / min, adjusting to 1 °C / min and heating to 110 °C, and then heating to 130 °C at 2 °C / min, respectively. Incubate for 30min and 60min, cool down to 80°C for drainage, and then inject water to raise the temperature to 85°C for reduction cleaning for 15min. After washing twice, drain the cloth and dry it.

[0033] The apparent color depth values ​​at different wavelengths were measured when the...

Embodiment 2

[0044] Example 2: Influence of different dyeing processes on dyeing effect

[0045] The above-mentioned optimal compound (the mass ratio of disperse orange HF-2R: disperse orange HF-R to 8:2) is used as the dye for dyeing, and experiments are carried out on the confirmation process of each parameter of the dyeing process, as follows:

[0046] When the compound concentration of dye is 2% (o.w.f), the concentration of dispersant MF is changed, ranging from 0-2.5g / L, and the concentration of auxiliaries (mass ratio of super dispersant Solsperse20000 and penetrant AEP is 4:6) is 1g / L, ammonium sulfate 1g / L, the bath ratio is 30:1, the dyeing temperature rise control is the same as that of Example 1, and the temperature is kept for 60min. After dyeing, determine the apparent color depth value of the dyed sample at the maximum absorption wavelength, and see the obtained results. Figure 4 shown.

[0047] from Figure 4 It can be seen that when the dispersant MF dosage is 0-2g / L,...

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PUM

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Abstract

The application provides an orange coupled disperse dye compound and a dyeing process thereof, belonging to the technical field of organic dyes formed by mixing different dyes. It is prepared by mixing terephthalic diisocyanate-coupled orange disperse dye and terephthaloyl chloride-coupled orange disperse dye. The application of this application in the dyeing of fabrics, especially suede, improves the color depth value of coupled disperse dyes in conventional dyeing temperature and time, and obtains both higher color depth value and better color fastness. degree performance.

Description

technical field [0001] The application relates to an orange-coupling type disperse dye compound and application thereof, belonging to the technical field of organic dyes formed by mixing different dyes. Background technique [0002] Two disperse dyes each containing a reactive reactive group (hydroxyl or amino group) are coupled together to obtain coupled disperse dyes through compounds with bifunctional groups (such as diisocyanate compounds, diformyl chloride, etc.). Coupling type disperse dyes have larger molecular weight, which increases the intermolecular force between dye molecules and fiber macromolecules, thereby increasing their affinity and thermal migration resistance, showing high wet fastness and sublimation fastness properties. , suitable for the dyeing of microfibers and polymers containing polyurethane bases. [0003] The suede fabric is composited with a microfiber tissue layer and a polyurethane base. Its thickness is large and the structure is relatively ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/18D06P1/19D06P1/52D06P1/60D06P1/667D06P5/10
CPCD06P1/18D06P1/19D06P1/667D06P1/5271D06P1/60D06P1/5257D06P1/5221D06P5/10D06P1/0032
Inventor 钱红飞钱蕾钱国春
Owner SHAOXING UNIVERSITY
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