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Method for dyeing superfine terylene fabric

A dyeing method, ultra-fine polyester technology, applied in the field of textile printing and dyeing, can solve the problems of discoloration and poor level dyeing, achieve the effect of preventing secondary aggregation, increasing dyeing rate, and improving dyeing performance

Active Publication Date: 2015-09-02
PACIFIC (PANYU) TEXTILES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for dyeing superfine polyester fabrics, so as to solve the quality problems such as poor level dyeing and colored flowers in brightly colored superfine polyester fabrics in low bath ratio dyeing and finishing technology.
For the dyeing method of superfine polyester fabrics, especially the dyeing method of brightly colored superfine polyester fabrics, adjusting the pH of the dye solution to 3.5-4.0 can solve the quality problems such as poor level dyeing and color blooms in low liquor ratio dyeing.

Method used

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  • Method for dyeing superfine terylene fabric
  • Method for dyeing superfine terylene fabric
  • Method for dyeing superfine terylene fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1 disperses brilliant blue superfine polyester fabric (light color)

[0041] Fabric: Superfine polyester 500Kg (88% Poly+12% Lycra), specification 50D / 144F SD Poly+40D Lycra, width 160cm, weight 95g / m 2

[0042] Dyeing machine: THEN airflow dyeing machine

[0043] The dyeing formula is as follows:

[0044]

[0045] Put the ultra-fine polyester fabric in the presetting machine, pre-setting treatment at 190°C for 20s; then put the ultra-fine polyester fabric in the dyeing machine, add water to soak, add disperse brilliant blue, softener, 2 / 3 uniform according to the above formula Dyeing agent and swelling agent, add citric acid to adjust the pH to 3.92, raise the temperature to 43°C at a rate of 3°C / min, and linearly add disperse dye Foron CYANINE SWF blue and the remaining 1 / 3 leveling agent (adding time is 20min), Raise the temperature to 100°C at a rate of 2°C / min, then raise the temperature to 110°C at 0.8°C / min, then raise the temperature to 130°C at...

Embodiment 2

[0046] Embodiment 2 disperses brilliant blue superfine polyester fabric (medium color)

[0047] Fabric and dyeing machine are all identical with embodiment 1.

[0048] The dyeing formula is as follows:

[0049]

[0050] According to the above formula and liquor ratio, the same dyeing method as in Example 1 was used to prepare a blue superfine polyester fabric (neutral color), the difference being that the presetting treatment time was 30 s, and the pH was adjusted to 3.75 with citric acid.

Embodiment 3

[0051] Embodiment 3 disperses brilliant blue superfine polyester fabric (dark color)

[0052] Fabric and dyeing machine are all identical with embodiment 1.

[0053] Dyeing recipe:

[0054]

[0055]

[0056] According to above-mentioned prescription and bath ratio, adopt the dyeing method identical with embodiment 1 to prepare blue superfine polyester fabric (dark color), difference is to adopt citric acid to adjust pH to 3.56, the addition amount of sodium hydroxide and hydrosulfite is equal to It is 6g / L.

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Abstract

The invention discloses a method for dyeing a superfine terylene fabric. The method comprises the following dyeing steps: adding a softening agent, part of a leveling agent, and an expansive agent into the soppy superfine terylene fabric to prepare a working solution; adding a pH regulator to regulate the pH value of the working solution to 3.5-4.0; heating the working solution with the adjusted pH value to 43 DEG C, and adding disperse dye and the residual leveling agent to prepare a dye liquor; carrying out heating and dyeing. The method aims at dyeing of a brightly colored superfine terylene fabric, and has the advantages the softening agent, the leveling agent and the expansive agent are added simultaneously, and the pH value of the dye liquor is regulated to 3.5-4.0, so that poor leveling property, uneven dyeing and other quality problems existing in a low-bath-ratio dyeing process can be solved; moreover, the dye-uptake rate of the disperse dye can be improved, secondary aggregation of the disperse dye in a high-temperature descending process is prevented, all color fastness indices of the superfine terylene fabric exceed 4-level, the dyeing property is improved, and the dyeing effect is ideal; the method further has the advantages of being environment-friendly and low in energy consumption.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a method for dyeing superfine polyester fabrics. Background technique [0002] Ultrafine polyester fiber has excellent properties such as soft hand feeling, lightness, good drapability, breathability and moisture absorption, and comfortable wearing. At present, the dyeing of superfine polyester fabric mainly includes high temperature and high pressure dyeing method, heat solution dyeing method and carrier dyeing method, among which high temperature and high pressure dyeing method is the most commonly used. When dyeing ultra-fine polyester under high temperature and high pressure, low-temperature dyes with the smallest molecular value and good dispersibility should be selected as far as possible. [0003] In recent years, some bright and beautiful colors such as colorful blue and brilliant blue have become the mainstream. The dyeing uses the disper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/44
Inventor 张贵张烨王思捷皮建兵张新华李明辉刘珊黄至薪陈臻
Owner PACIFIC (PANYU) TEXTILES LTD
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