Dyeing method of polyester-cotton fabric

A dyeing method and fabric technology, applied in dyeing method, textile and papermaking, etc., can solve the problems of narrow dye selection range, poor dyeing reproducibility, cumbersome process steps, etc., and achieve small process conditions jump, stable final performance, process smooth effect

Inactive Publication Date: 2020-03-06
江苏金剪刀服饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing one-bath two-step and one-bath one-step polyester-cotton dyeing processes can shorten the process flow and reduce water and energy consumption, they put forward higher requirements for dyes and auxiliaries. The selection range of dyes is very narrow and the dyeing reproducibility is poor.
[0003] The existing thermal dyeing process of polyester-cotton fabrics is cumbersome and lengthy, and the hand feeling of the dyed fabric is relatively hard

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The dyeing method of polyester-cotton fabric of the present invention comprises the following steps:

[0029] S1 pretreatment: immerse the polyester-cotton fabric to be dyed in the pretreatment solution for pretreatment, then wash with water, and then dehydrate;

[0030] S2 polyester partial dyeing: immerse the fabric after S1 in the alkaline dyeing solution of the desired color, adjust the bath ratio to 1:15, raise the temperature to 90°C at a speed of 2°C / min, keep it warm for 10min, and then heat it at 1.7°C / min Raise the temperature to 133°C at a rate of 1 min, keep it warm for 20 minutes; cool down to 120°C at a rate of 1.7°C / min, then cool down to 60°C at a rate of 2°C / min, and drain;

[0031] Partial dyeing of S3 cotton: immerse the polyester-cotton fabric dyed by S2 into the finishing liquid, raise the temperature to 60°C at a rate of 2°C / min, keep it warm for 20 minutes, take it out and wash it, and then immerse it in the dyeing liquid of reactive dyes to adjus...

Embodiment 2

[0044] The dyeing method of polyester-cotton fabric of the present invention comprises the following steps:

[0045] S1 pretreatment: immerse the polyester-cotton fabric to be dyed in the pretreatment solution for pretreatment, then wash with water, and then dehydrate;

[0046] S2 polyester partial dyeing: immerse the fabric after S1 in the alkaline dyeing solution of the desired color, adjust the bath ratio to 1:16, raise the temperature to 93°C at a speed of 2°C / min, keep it warm for 10min, and then heat it up at 1.7°C / min Raise the temperature to 134°C at a rate of 1 min, keep it warm for 24 minutes; cool down to 124°C at a rate of 1.7°C / min, then cool down to 64°C at a rate of 2°C / min, and drain;

[0047] Partial dyeing of S3 cotton: immerse the polyester-cotton fabric dyed by S2 into the finishing liquid, raise the temperature to 62°C at a rate of 2°C / min, keep it warm for 24min, take it out and wash it, and then immerse it in the dyeing liquid of reactive dyes to adjust ...

Embodiment 3

[0060] The dyeing method of polyester-cotton fabric of the present invention comprises the following steps:

[0061] S1 pretreatment: immerse the polyester-cotton fabric to be dyed in the pretreatment solution for pretreatment, then wash with water, and then dehydrate;

[0062] S2 polyester partial dyeing: immerse the fabric after S1 in the alkaline dyeing solution of the required color, adjust the bath ratio to 1:18, raise the temperature to 96°C at a speed of 2°C / min, keep it warm for 10min, and then heat it at 1.7°C / min Raise the temperature to 135°C at a rate of 1 min, keep it warm for 29 minutes; cool down to 129°C at a rate of 1.7°C / min, then cool down to 69°C at a rate of 2°C / min, and drain water;

[0063] Partial dyeing of S3 cotton: immerse the polyester-cotton fabric dyed by S2 into the finishing liquid, raise the temperature to 64°C at a rate of 2°C / min, then keep it warm for 28 minutes, take it out and wash it, and then immerse it in the dyeing liquid of reactive d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a dyeing method of a polyester-cotton fabric, and relates to the technical field of fabric dyeing. The dyeing method comprises the steps of S1, pretreating, to be specific, immersing a polyester-cotton fabric to be dyed in a pretreatment liquid for pretreatment, washing with water, and dewatering; S2, carrying partial dyeing on polyester, to be specific, immersing the fabric subjected to the step S1 in an alkaline dyeing solution with a required color; S3, carrying partial dyeing on cotton, to be specific, immersing the polyester-cotton fabric dyed in the step S2 in a finishing solution, and heating to 60-65 DEGC at the speed of 2 DEG C / min, holding the temperature for 20-30 min, taking out, washing with water, and immersing in a reactive dye liquor, adjusting the bath ratio to 1:(45-1):50, heating to 85-90 DEG C at the speed of 3-4 DEG C / min, holding the temperature for 30-40 min, adding 5-20 g / L of sodium carbonate according to the volume of the reactive dye solution, and holding the temperature for 15-20 min; S4, carrying out color fixation, to be specific, carrying out steaming color fixation on the fabric subjected to the step S3 for 10-15 min; and S5,post-treating, to be specific, cooling the fabric subjected to the step S4 to 25-30 DEG C, and then performing primary washing, soaping and post-washing sequentially.

Description

technical field [0001] The invention relates to the technical field of fabric dyeing methods, in particular to a method for dyeing polyester-cotton fabrics. Background technique [0002] Polyester-cotton fabrics are mainly dyed with disperse dyes and reactive dyes. Because reactive dyes require high salt to promote dyeing and alkaline color fixation, high salt dyeing solution will reduce the stability of the dispersion system, and disperse dyes are unstable and easy to decompose under alkaline conditions, so polyester-cotton fabrics are traditionally dyed by the two-bath method. The process is long and consumes a lot of energy and water. Although the existing one-bath two-step and one-bath one-step polyester-cotton dyeing processes can shorten the process flow and reduce water and energy consumption, they put forward higher requirements for dyes and auxiliaries. The selection range of dyes is very narrow and the dyeing reproducibility is poor. . [0003] The existing ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/41D06P1/38D06P1/00D06P3/87D06P1/673D06P1/44D06P1/66
CPCD06P1/0032D06P1/38D06P1/41D06P1/44D06P1/66D06P1/6735D06P3/8238
Inventor 鲍洪尚
Owner 江苏金剪刀服饰有限公司
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