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Dyeing and finishing technology for deep-color cotton-polyester elastic yarn-dyed fabric

A processing technology, technology of dense-colored cotton, applied in the direction of dyeing, textile and papermaking, dry-cleaning fiber products, etc. It can reduce the amount of heat migration, improve the soaping effect and improve the color fastness of the fabric.

Inactive Publication Date: 2018-09-07
张家港市金陵纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide a dyeing and finishing process of deep-colored cotton-polyester elastic yarn-dyed fabrics, which adopts the low-temperature carrier dyeing process of disperse dyes, combines with a special soaping agent, and uses High-temperature and high-tension rapid setting process shortens the high-temperature setting time and reduces the thermal migration of disperse dyeing. After setting, it is soaped to remove floating color and solves the problem of poor color fastness of deep-colored cotton-polyester elastic varieties.

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

[0024] A dyeing and finishing process for dark-colored cotton-polyester elastic yarn-dyed fabrics, the processing steps of which include: loose tube → dyeing → rewinding → warping → sizing → weaving → finishing; the dyeing includes: boiling and bleaching → carrier treatment →dyeing→reduction cleaning→softening treatment; among them, finishing includes: singeing→desizing→mercerizing→high temperature setting→desizing and washing→setting tenter→preshrinking.

[0025] Add compound refining enzyme 8g / L in the scouring and bleaching step, the scouring and bleaching temperature is 85°C, and the time is 30min.

[0026] In the carrier treatment step: use 1 g / L of benzaldehyde benzyl ester complex as a low-temperature dyeing carrier, a pH regulator of 1-2 g / L, a treatment temperature of 113°C, and a treatment time of 60 minutes; The purpose of reducing the dyeing temperature of disperse dyes is to make high-temperature disperse dyes dyed at 113°C to meet the requirements of dark color y...

Embodiment 2

[0032] A dyeing and finishing process for dark-colored cotton-polyester elastic yarn-dyed fabrics, the processing steps of which include: loose tube → dyeing → rewinding → warping → sizing → weaving → finishing; the dyeing includes: boiling and bleaching → carrier treatment →dyeing→reduction cleaning→softening treatment; among them, finishing includes: singeing→desizing→mercerizing→high temperature setting→desizing and washing→setting tenter→preshrinking.

[0033] Add compound refining enzyme 3.5g / L in the scouring and bleaching step, the scouring and bleaching temperature is 70-80°C, and the time is 55min.

[0034] In the carrier treatment step: use 1.7g / L of benzaldehyde benzyl ester complex as a low-temperature dyeing carrier, a pH regulator of 1-2g / L, a treatment temperature of 120°C, and a treatment time of 45 minutes; To reduce the dyeing temperature of disperse dyes, high-temperature disperse dyes can be dyed at 120°C to meet the requirements of dark color yield, while ...

Embodiment 3

[0040] A dyeing and finishing process for dark-colored cotton-polyester elastic yarn-dyed fabrics, the processing steps of which include: loose tube → dyeing → rewinding → warping → sizing → weaving → finishing; the dyeing includes: boiling and bleaching → carrier treatment →dyeing→reduction cleaning→softening treatment; among them, finishing includes: singeing→desizing→mercerizing→high temperature setting→desizing and washing→setting tenter→preshrinking.

[0041] Add compound refining enzyme 3.5g / L in the cooking and bleaching step, the cooking and bleaching temperature is 75°C, and the time is 60min.

[0042] In the carrier treatment step: use 2g / L of benzaldehyde benzyl ester complex as the low-temperature dyeing carrier, pH regulator 1-2g / L, treatment temperature 110-120°C, and treatment time 70min; use low-temperature dyeing carrier to treat the package yarn, To reduce the dyeing temperature of disperse dyes, high-temperature disperse dyes can be dyed at 110°C to meet the...

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 deep-color cotton-polyester elastic yarn-dyed fabric. The technological process comprises steps of slack winding, dyeing, rewinding, warping, slashing, weaving and after-finishing, wherein the dyeing process comprises steps of scouring and bleaching, carrier treatment, dyeing, reduction clearing and softening treatment; the after-finishing process comprises steps of singeing, desizing, mercerizing, high-temperature setting, desizing washing, setting tentering and preshrinking. The dyeing and finishing technology has the advantages that a disperse-dye low-temperature carrier dyeing process is adopted and combined with a specific soaping agent, a high-temperature high-tension rapid setting process is adopted in the after-finishingprocess, high-temperature setting time is shortened, disperse dyeing heat transfer amount is reduced, soaping is performed after setting for removing surface dyeing, and the problem of poor color fastness of deep-color cotton-polyester elastic varieties is solved.

Description

technical field [0001] The invention belongs to the technical field of fabric dyeing and finishing, and in particular relates to a dyeing and finishing process of cotton-polyester elastic yarn-dyed fabric. Background technique [0002] Cotton-polyester-spandex blended yarn not only has the strength of polyester but also the comfort of cotton and the elasticity of spandex. The fabric made of it has the characteristics of soft touch, strong comfort, and not easy to deform. The disadvantage is that cotton-polyester blended spandex yarn needs high temperature and high pressure conditions when dyeing polyester, while spandex is not resistant to hot and humid high temperature conditions, and there are quality problems such as spandex is easy to be damaged, the inner and outer layers of the bobbin are large, and the strength damage is large; in the finishing process, High-temperature setting is required to improve the shrinkage of the fabric. In a high-temperature and humid enviro...

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 Applications(China)
IPC IPC(8): D06P1/16D06P1/651D06P3/82D06L4/40D06L1/14
CPCD06L1/14D06L4/40D06P1/16D06P1/65112D06P3/8233
Inventor 王薇黄胜良曹静华
Owner 张家港市金陵纺织有限公司
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