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Dyeing and finishing process of high-shrinkage and easy-to-dye polyester-nylon composite yarn fabric

A composite yarn, dyeing and finishing technology, applied in the field of textile dyeing and finishing, can solve the problems of low color fastness, poor dyeing property, and affecting product quality, etc., achieve natural velvet feeling, best wool effect, and increase saturation and vividness effects

Active Publication Date: 2017-09-05
WUJIANG FUHUA WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, this product generally has production technical problems such as poor dyeing property and low color fastness, which seriously affect the quality of the product; because the production process is not perfect, there is no large-scale production in the market at present, mainly in the production of dyeing and finishing. There are the following technical problems in the process: the polyester-nylon composite yarn used in this product has a high dyeing shrinkage rate, and the dyeing shrinkage rate is generally between 30 and 50%. How to control the dyeing shrinkage rate within a reasonable range to ensure the fabric size Stability is an urgent problem to be solved; how to improve the pre-treatment process to enhance the product's soft and rich feel and fine velvet feel, in addition, the color rendering, level dyeing and color fastness of the product need to be improved urgently

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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  • Dyeing and finishing process of high-shrinkage and easy-to-dye polyester-nylon composite yarn fabric
  • Dyeing and finishing process of high-shrinkage and easy-to-dye polyester-nylon composite yarn fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The dyeing and finishing process of the high-shrinkage and easy-to-dye polyester-nylon composite silk fabric of the present invention is carried out according to the following process: reducing the weight of the cloth → opening → pre-setting → overflow dyeing → dehydration and drying → finalizing, wherein the reduction of the cloth is first. The gray cloth is subjected to cold-stack reduction treatment, and then enters the open-width refining reduction step, and the process conditions of the cold-stack reduction step are as follows:

[0036] Liquid caustic soda 110 g / L

[0037] Alkali rate 8%

[0038] Speed ​​18r / min

[0039] time 24 h;

[0040] The technological condition of described open-width scouring reduction step:

[0041] NaOH concentration 15g / L

[0042] Accelerator MK concentration 2g / L

[0043] Liquid alkali concentration 45g / L

[0044] Bath ratio 1:20

[0045] Refining speed 40 m / min;

[0046] The open-width scouring reduction is carried out accordin...

Embodiment 2

[0057] The dyeing and finishing process of the high-shrinkage and easy-to-dye polyester-nylon composite silk fabric of the present invention is carried out according to the following process: reducing the weight of the cloth → opening → pre-setting → overflow dyeing → dehydration and drying → finalizing, wherein the reduction of the cloth is first. The gray cloth is subjected to cold-stack reduction treatment, and then enters the open-width refining reduction step, and the process conditions of the cold-stack reduction step are as follows:

[0058] Liquid caustic soda 135 g / L

[0059] Alkali rate 9%

[0060] Speed ​​17r / min

[0061] time 24 h;

[0062] The technological condition of described open-width scouring reduction step:

[0063] NaOH concentration 15g / L

[0064] Accelerator MK concentration 2g / L

[0065] Liquid alkali concentration 45g / L

[0066] Bath ratio 1:20

[0067] Refining speed 40 m / min;

[0068] The open-width scouring reduction is carried out according ...

Embodiment 3

[0079] The dyeing and finishing process of the high-shrinkage and easy-to-dye polyester-nylon composite silk fabric of the present invention is carried out according to the following process: reducing the weight of the cloth → opening → pre-setting → overflow dyeing → dehydration and drying → finalizing, wherein the reduction of the cloth is first. The gray cloth is subjected to cold-stack reduction treatment, and then enters the open-width refining reduction step, and the process conditions of the cold-stack reduction step are as follows:

[0080] Liquid caustic soda 150 g / L

[0081] Alkali rate 8.5%

[0082] Speed ​​17r / min

[0083] time 24 h;

[0084] The technological condition of described open-width scouring reduction step:

[0085] NaOH concentration 15g / L

[0086] Accelerator MK concentration 2g / L

[0087] Liquid alkali concentration 45g / L

[0088] Bath ratio 1:20;

[0089] Refining speed 40 m / min

[0090] The open-width scouring reduction is carried out accord...

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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Abstract

The invention discloses a dyeing and finishing technology for high-shrinkage polyester-polyamide composite filament fabric easy to dye. The technology comprises the steps of reduction scouring, splitting, tackification, overflow dyeing, dehydrating and drying and type approval, wherein the reduction scouring means firstly conducting cold-batch reduction processing on gray fabric and then conducting the step of open-width fine scouring reduction. The polyester-polyamide composite filament fabric produced by the dyeing and finishing technology is soft in luster and light and soft in material, the fabric downy feeling is natural, fine, smooth and full, the draping performance is greatly improved, and the fabric shrinkage percentage is controlled to be less than or equal to 25% within the range required by the technology; meanwhile, the dyeing rate of the fabric is increased by more than one time, the various fastnesses are improved by about one level, the color saturation and vividness are improved greatly, the color quality stability is stronger, and the fabric market value added is overall increased.

Description

technical field [0001] The invention relates to the field of textile dyeing and finishing, in particular to a production technology for dyeing and finishing of high-shrinkage and easy-to-dye polyester-nylon composite silk fabrics. Background technique [0002] At present, polyester-nylon composite yarn fabric is a new type of fabric in the field of cotton clothing, especially a 75D / 24F high-shrinkage and easy-to-dye polyester-nylon composite yarn fabric, which is often used to make high-end windbreakers and casual jackets for men and women, and has been very popular in the market. But at present, this product generally has production technical problems such as poor dyeing property and low color fastness, which seriously affect the quality of the product; because the production process is not perfect, there is no large-scale production in the market at present, mainly in the production of dyeing and finishing. There are the following technical problems in the process: the pol...

Claims

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B21/00D06B3/10D06B3/18D06B17/04D06C7/02D06P1/16D06P3/85
CPCD06B3/10D06B3/18D06B17/04D06B21/00D06C7/02D06P1/16
Inventor 肖燕许志刚李海燕鲁宏伟
Owner WUJIANG FUHUA WEAVING
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