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A dyeing process of polyester fabric

A technology of polyester and cloth, applied in the field of polyester cloth dyeing technology, can solve the problems of low color fastness of polyester cloth, achieve the effect of improving color fastness and preventing color fading

Active Publication Date: 2022-07-22
瑞雪蓝色印染科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of low color fastness of polyester cloth, the application provides a dyeing process of polyester cloth

Method used

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  • A dyeing process of polyester fabric
  • A dyeing process of polyester fabric
  • A dyeing process of polyester fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] refer to figure 1 , this embodiment discloses a dyeing process of polyester fabric, and the polyester grey fabric after unwinding is processed in the following steps:

[0047] S1: Pre-type. First convey the selected grey fabric into the heat setting machine, then adjust the temperature of the heat setting machine to 130°C for 4.5 minutes, and then cool the polyester fabric to room temperature.

[0048]S2: Desizing. Put the pre-shaped grey cloth into the padding mill. Then the desizing solution was added, and the chemical composition of each substance in the desizing solution was 40 g / L of caustic soda and 10 g / L of degreaser. When adding, first add caustic soda to the padding mill and stir for 10min; then add the degreasing refining agent to the padding mill, control the bath ratio to 1:30, and stir for 30min; then the grey fabric is paddled in the padding mill for 7h. The degreasing and refining agent was selected from the degreasing and refining agent Goon107 sold...

Embodiment 2

[0058] The difference from Example 1 is that the dispersant in S4 dyeing is sodium lignosulfonate.

Embodiment 3

[0060] The difference from Example 1 is that the dispersants in S4 dyeing include sodium lignosulfonate, sodium dodecylbenzenesulfonate and diisostearyl malate, and the mass ratio of the three is 4:8:3 .

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Abstract

The present application relates to the technical field of fabric dyeing, and specifically discloses a dyeing process for polyester fabric. The polyester grey fabric is subjected to the following steps: S1: pre-forming; S2: desizing; S3: neutralization by washing; S4: dyeing, washing with water The neutralized grey fabric is dyed, and each substance of the dye used is in parts by weight: 15-25 parts of disperse dyes, 10-20 parts of dispersants, 2-6 parts of glycerol, 1-3 parts of dioctyl maleate parts, 3-8 parts of diethylene glycol dibenzoate, 40-80 parts of leveling agent, 3-9 parts of acetic acid and 150-210 parts of water; S5: washing; S6: dehydration; S7: opening; S8: Setting; the grey fabric after S8 setting is the dyed polyester fabric. By adding dioctyl maleate, diethylene glycol dibenzoate and glycerol in the dye liquor, the color fastness of polyester fabric can be improved finally.

Description

technical field [0001] The present application relates to the technical field of fabric dyeing, in particular to a dyeing process for polyester fabrics. Background technique [0002] Polyester is a synthetic fiber that is widely used in textiles and has excellent comprehensive properties. The polyester filament fabric must be sizing before weaving, so that the surface of the thread is covered with a smooth, flexible and firm sizing film to enhance the cohesion and wear resistance of the polyester filament, so that it can withstand various conditions during the weaving process. Friction and tension enable weaving production to proceed smoothly under the requirements of high quality and high yield. [0003] Polyester fiber is a hydrophobic fiber made of polyethylene terephthalate. Due to the tight molecular chain structure of polyester and lack of hydrophilic groups such as carboxyl and sulfo groups, direct dyes, acid dyes, basic dyes, etc. cannot be used. For dyeing, most o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/54D06P1/16D06P1/642D06P1/651D06P5/04D06P5/10
Inventor 杨华赖剑飞夏克胜
Owner 瑞雪蓝色印染科技有限公司