Low temperature dyeing process for polyester fibers

A low-temperature dyeing and polyester fiber technology, applied in dyeing, textiles and papermaking, etc., can solve the problems of large-scale industrial production, heavy pollution, and high cost, and achieve the goal of reducing energy consumption, reducing dyeing costs, and improving production efficiency Effect

Active Publication Date: 2017-09-15
马鞍山市永运家纺有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the research and development of polyester dyeing accelerators, lowering the dyeing temperature, and reducing waste water discharge are in line with the current development

Method used

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  • Low temperature dyeing process for polyester fibers
  • Low temperature dyeing process for polyester fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A low-temperature dyeing process for polyester fibers, comprising the following steps:

[0017] 1. Dissolve benzyl alcohol, dimethyl phthalate, sorbitan monooleate polyoxyethylene ether, Yatelong red AQE, and dispersant in a buffer solution with a pH value of 4.5-6.5 in sequence to prepare Dye liquor, and the temperature of dye liquor is raised to 50 ℃; the concentration of benzyl alcohol in the dye liquor is 4g / L, the concentration of dimethyl phthalate is 4g / L, sorbitan monooleate polyoxyethylene ether The concentration of the dispersant is 4g / L, and the concentration of the dispersant is 1.5g / L; the dosage of Yatelong Red AQE is 3% owf;

[0018] The buffer solution is prepared with potassium dihydrogen phosphate and an appropriate amount of acetic acid; the dispersant is a mixture of sodium methylene dimethyl naphthalene sulfonate and alkaline sodium lignosulfonate at a mass ratio of 1:2;

[0019] 2. Put the polyester fabric into the dyeing solution with a liquor ra...

Embodiment 2

[0021] A low-temperature dyeing process for polyester fibers, comprising the following steps:

[0022] 1. Dissolve benzyl alcohol, dimethyl phthalate, sorbitan monooleate polyoxyethylene ether, Yatrom blue AQE, and dispersant in a buffer solution with a pH value of 4.5-6.5 in sequence to prepare Dye liquor, and the temperature of dye liquor is raised to 55 ℃; the concentration of benzyl alcohol in the dye liquor is 3g / L, the concentration of dimethyl phthalate is 5g / L, sorbitan monooleate polyoxyethylene ether The concentration of the dispersant is 3g / L, the concentration of the dispersant is 1.5g / L; the dosage of Yatrolong Blue AQE is 5% owf;

[0023] The buffer solution is prepared with potassium dihydrogen phosphate and an appropriate amount of acetic acid; the dispersant is a mixture of sodium methylene dimethyl naphthalene sulfonate and alkaline sodium lignosulfonate at a mass ratio of 1:1;

[0024] 2. Put the polyester fabric into the dyeing solution with a liquor ratio...

Embodiment 3

[0026] A low-temperature dyeing process for polyester fibers, comprising the following steps:

[0027] 1. Dissolve benzyl alcohol, dimethyl phthalate, sorbitan monooleate polyoxyethylene ether, Yatrom blue AQE, and dispersant in a buffer solution with a pH value of 4.5-6.5 in sequence to prepare Dye liquor, and the temperature of dye liquor is raised to 50 ℃; the concentration of benzyl alcohol in the dye liquor is 5g / L, the concentration of dimethyl phthalate is 3g / L, sorbitan monooleate polyoxyethylene ether The concentration of the dispersant is 4g / L, and the concentration of the dispersant is 1.2g / L; the dosage of Artron Blue AQE is 2% owf;

[0028] The buffer solution is prepared with potassium dihydrogen phosphate and an appropriate amount of acetic acid; the dispersant is a mixture of sodium methylene dimethyl naphthalene sulfonate and alkaline sodium lignosulfonate at a mass ratio of 1:4;

[0029] 2. Put the polyester fabric into the dyeing solution with a liquor rati...

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Abstract

The invention provides a low temperature dyeing process for polyester fibers. The low temperature dyeing process comprises: sequentially dissolving benzyl alcohol, dimethyl phthalate, sorbitan monooleate polyoxyethylene ether, a disperse dye and a dispersant in a buffer liquid with a pH Value of 4.5-6.5 to prepare a dyeing liquid, and heating the dyeing liquid to a temperature of 45-55 DEG C; pouring a polyester fabric into the dyeing liquid according to a bath ratio of 1:20-40, heating to a temperature of 90-95 DEG C at a rate of 1.5-2 DEG C/min, carrying out thermal insulation for 30-50 min, cooling to a temperature of 70-75 DEG C at a rate of 1.5-2 DEG C/min, and carrying out thermal insulation for 30-40 min; and taking out the polyester fabric, carrying out water washing 2-3 times, carrying out reduction washing, carrying out water washing 3-4 times, and drying the polyester fabric at a temperature of 70-75 DEG C. According to the present invention, with the low temperature dyeing process, the dyeing temperature of the polyester fiber can be effectively reduced, and the obtained polyester fiber has advantages of high dyeing percentage, high rubbing fastness, high soap color fastness, and excellent comprehensive performance.

Description

technical field [0001] The invention relates to the field of fabric dyeing, in particular to a low-temperature dyeing process for polyester fibers. Background technique [0002] Polyester fiber has excellent heat resistance, light resistance, chemical stability and dimensional stability, and has a wide range of application fields. With the increase of polyester differentiation rate, its application field will continue to expand. However, polyester fiber is a kind of synthetic fiber with strong hydrophobicity, and its molecular structure lacks active groups like cellulose molecules and protein molecules that can interact with dye molecules, and its molecules are closely arranged and have high crystallinity. Under the condition of appropriate additives, polyester fiber is difficult to dye. Therefore, polyester fibers are usually dyed by high temperature and high pressure dyeing method, hot melt dyeing method and carrier dyeing method. High-temperature, high-pressure and hot-...

Claims

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Application Information

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IPC IPC(8): D06P1/16D06P1/651D06P1/613D06P1/62D06P1/46D06P3/54
CPCD06P1/16D06P1/46D06P1/6136D06P1/625D06P1/65118D06P1/65125D06P3/54
Inventor 卫必兵
Owner 马鞍山市永运家纺有限公司
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