Dyeing process for polyester fabric

A polyester and fabric technology, applied in the field of polyester fabric dyeing technology, can solve the problems of poor dyeing quality of polyester fiber, low dyeing rate of polyester fiber, lack of active groups, etc. The effect of color fastness

Inactive Publication Date: 2020-01-14
HANGZHOU XINSHENG PRINTING & DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyester fiber is a hydrophobic synthetic fiber. The polyester molecular structure lacks active groups that can combine with dyes like cellulose or protein fibers. Therefore, when polyester fibers are dyed, dyes are always difficult to dye, resulting in polyester fibers. The dyeing rate is low, resulting in poor dyeing quality of polyester fibers

Method used

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  • Dyeing process for polyester fabric
  • Dyeing process for polyester fabric
  • Dyeing process for polyester fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Reference figure 1 , A dyeing process for polyester fabrics, the polyester grey fabric after unwinding is processed in the following steps:

[0040] S1: Pre-defined. First transport the selected grey fabric into the heat setting machine, and then adjust the temperature of the heat setting machine to 160°C for 4.5 minutes, and then cool the polyester fabric to room temperature.

[0041] S2: Desizing. The pre-shaped grey fabric is put into the padding mill. Then, the desizing solution is added, and the chemical composition of the desizing solution is 40 g / L of caustic soda and 10 g / L of deoiling refining agent. When adding, first add caustic soda to the padding mill and stir for 10 minutes; then add the degreasing refining agent to the padding mill, control the bath ratio of 1:30, and stir for 30 minutes; then the grey fabric is paddled in the padding mill for 7 hours.

[0042] S3: Wash and neutralize. Put the desizing fabric into a washing machine and rinse it several times...

Embodiment 2

[0051] The difference between Example 2 and Example 1 is that in S4 dyeing, the dispersant includes sodium dodecylbenzene sulfonate and sodium succinate, and the mass ratio of sodium dodecylbenzene sulfonate to sodium succinate is 7: 2.

Embodiment 3

[0052] The difference between Example 3 and Example 1 is that there is no dispersant in the dye in S4 dyeing.

[0053] The difference between embodiment 4-6 and embodiment 1 is that the scheduled time in S1 scheduled type is shown in the following table: Unit: min

[0054] Example Example 4 Example 5 Example 6 time44.35

[0055] The difference between Examples 7-10 and Example 1 is that the chemical compositions of the dyes in S4 dyeing are in parts by weight as shown in the following table: Unit: parts

[0056]

[0057] The difference between Examples 11-13 and Example 1 is that the temperature of the dye liquor in S4 dyeing is shown in the following table: Unit: °C

[0058] Example Example 11 Example 12 Example 13 temperature100110120

[0059] The difference between Examples 14-17 and Example 1 is that each substance of the reducing agent in step b in S5 washing is calculated in parts by weight as shown in the following table: Unit: parts

[0060]

[0061]

[0062] The diffe...

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PUM

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Abstract

The invention relates to the technical field of textile processing, and discloses a dyeing process for polyester fabric. The unrolled polyester fabric is processed by the steps of S1, presetting greycloth; S2, desizing the grey cloth after presetting; S3, rinsing to neutralize the desized grey cloth; S4, dyeing the grey cloth which is neutralized by rinsing, wherein dyestuff comprises chemical components: by weight, 20-30 parts of disperse dyes, 18-26 parts of wetting agents, 70-90 parts of high temperature levelling agents, 10-15 parts of ethylic acid, 12-16 parts of aminopropyl laurylglutamine, 2-6 parts of trisodium sulfosuccinate and 250-300 parts of water, and dyeing temperature is controlled within 100-130 DEG C; S5, washing; S6, dewatering; S7, scutching; S8, sizing to obtain the dyed polyester fabric. With application of aminopropyl laurylglutamine and trisodium sulfosuccinate, the dye-uptake rate of the polyester fabric is increased.

Description

Technical field [0001] The invention relates to the technical field of textile processing, more specifically, it relates to a dyeing process for polyester fabrics. Background technique [0002] Polyester is an important variety of synthetic fibers. It is the trade name of polyester fiber in my country. It is based on polyterephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (MEG) as raw materials. Polyethylene terephthalate, a fiber-forming polymer made by esterification or transesterification and polycondensation, is a fiber made by spinning and post-processing. Polyester fabrics woven from polyester are widely used because of their high strength, good elasticity and good wear resistance. [0003] Because polyester fabrics have the above-mentioned advantages, the scope of application of polyester fabrics is very wide. In order to be suitable for use in different situations, polyester fabrics are usually dyed. Polyester fiber is a hydrophobic synthetic fiber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/649D06P1/62D06P1/653D06P1/667D06P3/54D06P5/10D06P5/08
CPCD06P1/16D06P1/623D06P1/625D06P1/6495D06P1/6533D06P1/667D06P3/54D06P5/08D06P5/10
Inventor 吴绍明李国信
Owner HANGZHOU XINSHENG PRINTING & DYEING
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