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Method for quickly dyeing polyester textiles

A rapid dyeing and textile technology, applied in the field of textile printing and dyeing, can solve the problems of high equipment requirements, frequent temperature changes, large water consumption, etc., achieve the effects of short process, fast dyeing speed, and reduced discharge of waste liquid

Active Publication Date: 2019-09-10
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dyeing process is continuously at high temperature, and the temperature changes frequently, which will have a disordered effect on the fiber structure, the product performance is uncontrollable, and the requirements for equipment are high, and the problem of large water consumption in the dyeing process has not been solved.

Method used

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  • Method for quickly dyeing polyester textiles
  • Method for quickly dyeing polyester textiles
  • Method for quickly dyeing polyester textiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for fast dyeing of polyester textiles, said method comprising the following steps:

[0037] Step 1: Preparation of dyeing paste

[0038] Mix disperse dyes, penetrants, dispersants and swelling agents in alcoholic organic solvents in proportion, stir mechanically, and slowly add polyvinyl butyral during stirring until the polyvinyl butyral is fully dissolved to obtain dyeing paste ;

[0039] Step 2: Dyeing Polyester Textiles

[0040] Placing the polyester textile in the dyeing paste prepared in step 1;

[0041] Step 3: Shaping of Polyester Textiles

[0042] The polyester textile dyed in step 2 is placed in a water bath to form a film and then baked at a high temperature;

[0043]Step 4: Postprocessing

[0044] Washing the polyester textiles shaped in step 3 in an alcoholic organic solvent until the polyvinyl butyral film on the surface of the polyester textiles is dissolved to obtain a finished dyed product.

[0045] In the above-mentioned embodiment, the ...

Embodiment 2-9

[0067] A kind of method for fast dyeing of polyester textiles provided by embodiment 2-9, wherein said dyestuff concentration and the molecular weight of polyvinyl butyral carrier and the mass fraction of polyvinyl butyral are as shown in Table 1, all the other and Embodiment 1 is consistent. The results of the polyester fiber breaking strength, elongation at break and strength damage after dyeing are shown in Table 2.

[0068] Table 1 Mass fraction and average molecular weight of different dye concentrations and carrier vinyl butyral PVB

[0069]

[0070]

Embodiment 10-17

[0078] A method for rapid dyeing of polyester textiles provided in Examples 10-17, wherein the concentration of the penetrating agent, the concentration of the dispersant, and the concentration of the swelling agent are shown in Table 3, and the rest are consistent with Example 1. The results of the polyester fiber breaking strength, elongation at break and strength damage after dyeing are shown in Table 4.

[0079] Table 3 Different penetrant concentration, dispersant concentration and expansion agent concentration

[0080] Example Penetrant (%) Dispersant(%) Expansion agent (%) Example 10 0.3 0.08 0.10 Example 11 0.3 0.09 0.15 Example 12 0.4 0.09 0.20 Example 13 0.4 0.1 0.15 Example 14 0.5 0.1 0.10 Example 15 0.5 0.08 0.20 Example 16 0.6 0.11 0.05 Example 17 0.6 0.11 0.05

[0081] As can be seen from Table 4, with the method for fast dyeing of a kind of polyester textile of the present inventi...

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Abstract

The invention relates to a method for quickly dyeing polyester textiles, and belongs to the technical field of textile printing and dyeing. The method for quickly dyeing the polyester textiles includes the following steps: step 1, dissolving disperse dye macromolecular polyvinyl butyral, penetrants, dispersants and expansion agents in an alcohol organic solvent to obtain mixed dyeing size; step 2,padding the polyester textiles in the mixed dyeing size; step 3, subjecting the polyester textiles to film formation and shaping in water bath, and performing high-temperature baking; step 4, washingthe polyester textiles in the alcohol organic solvent until the polyvinyl butyral on the surfaces of the polyester textiles is dissolved to obtain dyed finished products. The method has the advantages that the polyvinyl butyral serves as a carrier of disperse dye, so that the dispersion stability is high, poison and harm are avoided, and safety, energy conservation, cleanness and environmental protection are realized; the dyeing method has a short process and a high dyeing speed, damage to polyester fibers after dyeing is small, water for film formation and shaping can be recycled, and energyconservation and emission reduction are achieved.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to a method for quickly dyeing polyester textiles. Background technique [0002] Polyester fiber is widely used in various textiles and clothing fabrics due to its high strength, good resilience, excellent wear resistance, good dimensional stability, and excellent wrinkle resistance. However, it is a hydrophobic fiber with a tight structure, neat molecular arrangement, many crystallization areas, low polarity, lack of hydrophilicity, low swelling degree in water, and no specific dyeing group, resulting in polyester fiber not being as good as cotton Fibers can swell in water to increase the intermolecular gap, or combine with dyes through active groups, which brings certain difficulties to dyeing. At present, the main dyeing methods are high-temperature and high-pressure method (120-130° C.) and hot-melt dyeing method (180-220° C.), but these two methods all have...

Claims

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Application Information

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IPC IPC(8): D06P1/16D06P1/44D06P1/52D06P3/54D06C7/02
CPCD06C7/02D06P1/16D06P1/445D06P1/5228D06P3/54
Inventor 夏良君付专周思婕朱丽云成芸琪王运利徐卫林
Owner WUHAN TEXTILE UNIV
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