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A method for rapid dyeing of polyester textiles

A rapid dyeing and textile technology, applied in the field of textile printing and dyeing, can solve the problems of disordered fiber structure, uncontrollable product performance, frequent temperature changes, etc., and achieve fast dyeing speed, excellent dispersion stability, and excellent centrifugal effect

Active Publication Date: 2021-08-17
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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  • A method for rapid dyeing of polyester textiles
  • A method for rapid dyeing of polyester textiles
  • A method for rapid dyeing of 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 swelling 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 inventio...

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Abstract

The invention relates to a method for quickly dyeing polyester textiles, belonging to the technical field of textile printing and dyeing. The steps of a method for quickly dyeing polyester textiles of the present invention are as follows: step 1, disperse dye polymer polyvinyl butyral, penetrating agent, dispersant and expansion agent are dissolved in alcohol organic solvents to form a mixed dyeing paste; step 2 , the polyester textiles are subjected to padding treatment in the mixed dyeing pulp; step 3, the polyester textiles are formed into a film in a water bath, and then baked at a high temperature; step 4, the polyester textiles are washed in an alcoholic organic solvent until the polyvinyl alcohol on the surface of the polyester textiles The butyral film is dissolved to obtain a dyed finished product. In the present invention, polyvinyl butyral is used as the carrier of disperse dyes, which has excellent dispersion stability, is non-toxic and harmless, and has the characteristics of safety, energy saving, cleanliness and environmental protection. Low damage, water for film forming and setting can be reused, energy saving and emission reduction.

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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Patent Type & Authority Patents(China)
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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