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Dyeing method of polyester-cotton blended knitting fabric

A technology of polyester-cotton blending and dyeing method, applied in the field of dyeing and finishing technology, can solve the problems of low production volume, large labor amount, long process time, etc. Effect

Active Publication Date: 2016-10-12
石狮市瑞鹰纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the dyeing and finishing process of polyester-cotton blended knitted fabrics mainly adopts the two-bath two-step method for dyeing, that is, after dyeing the polyester part under weak acidic conditions, the polyester part is cleaned to ensure the color fastness of the polyester part, and then Under strong alkaline conditions, reactive dyes are used to dye the cotton part, and then soaped to ensure the color fastness of the cotton part. In addition to the pre-treatment process of the fabric, the whole process often takes more than 10 hours, not only the process is complicated , Long process time, large water consumption, large energy consumption, large labor load, low production volume and low efficiency

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 method of polyester-cotton blended knitting fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) Pretreatment: put 10.00kg of polyester-cotton blended knitted gray fabric to be dyed into 40°C water for 10 minutes, take it out, and dehydrate;

[0024] 2) Dyeing of the polyester part and oxygen bleaching of the cotton part: put the water at a bath ratio of 1:10, add 0.15kg of alkaline polyester-cotton dyeing agent, and add 0.1kg of dye particles according to the desired color, mix well, and make alkaline dyeing Liquid; The raw material composition of basic polyester cotton dyeing agent used comprises by weight: 5 parts of NaOH, NaOH 2 CO 3 20 parts, 20 parts of solid organic buffer base (composed of KOH and triisopropanolamine in a weight ratio of 1:10), 15 parts of lignin; then soak the gray cloth pretreated in step 1) in the alkaline dyeing solution, Cover and seal, heat up to 85°C at a rate of 3°C / min, open the cover, add 0.4 kg of hydrogen peroxide with a volume concentration of 27.5%, cover and seal, heat up to 105°C at a rate of 1.5°C / min, keep warm for 10...

Embodiment 2

[0028] 1) Pretreatment: put 10.00kg of polyester-cotton blended knitted gray fabric to be dyed into 45°C water for 10 minutes, take it out, and dehydrate;

[0029] 2) Dyeing of the polyester part and oxygen bleaching of the cotton part: put the water at a bath ratio of 1:10, add 0.15kg of alkaline polyester-cotton dyeing agent, and add 0.1kg of dye particles according to the desired color, mix well, and make alkaline dyeing liquid; the raw material composition of alkaline polyester-cotton dyeing agent used comprises by weight: 15 parts of NaOH, NaOH 2 CO 3 25 parts, 30 parts of solid organic buffer base (composed of KOH and triisopropanolamine in a weight ratio of 1:15), 20 parts of lignin; then soak the gray cloth pretreated in step 1) in the alkaline dyeing solution, Cover and seal, heat up to 85°C at a rate of 3°C / min, open the cover, add 0.4 kg of hydrogen peroxide with a volume concentration of 27.5%, cover and seal, heat up to 105°C at a rate of 1.5°C / min, keep warm fo...

Embodiment 3

[0033] 1) Pretreatment: put 10.00kg of polyester-cotton blended knitted gray fabric to be dyed into 50°C water for 10 minutes, take it out, and dehydrate;

[0034] 2) Dyeing of the polyester part and oxygen bleaching of the cotton part: put the water at a bath ratio of 1:10, add 0.15kg of alkaline polyester-cotton dyeing agent, and add 0.1kg of dye particles according to the desired color, mix well, and make alkaline dyeing Liquid; The raw material composition of basic polyester cotton dyeing agent used comprises by weight: 18 parts of NaOH, NaOH 2 CO 3 35 parts, 45 parts of solid organic buffer base (composed of KOH and triisopropanolamine in a weight ratio of 1:20), 25 parts of lignin; then soak the gray cloth pretreated in step 1) in alkaline dyeing solution, Cover and seal, heat up to 85°C at a rate of 3°C / min, open the cover, add 0.4 kg of hydrogen peroxide with a volume concentration of 27.5%, cover and seal, heat up to 105°C at a rate of 1.5°C / min, keep warm for 10 mi...

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 method of polyester-cotton blended knitting fabric. The dyeing method comprises the steps of pre-treatment, dyeing of a polyester part and oxygen bleaching of a cotton part, dyeing of the cotton part and after-treatment. According to the dyeing method disclosed by the invention, dyeing is carried out by adopting a special alkaline polyester-cotton dyeing agent, the technologies of the oxygen bleaching of the cotton part and the dyeing of the polyester part are combined into one, washing of the polyester part can be omitted, and washing can be carried out only after the dyeing of the cotton part. Compared with traditional craftwork, the dyeing method disclosed by the invention has the advantages that the technological process is greatly simplified, the dyeing time is greatly shortened, the use of water, electricity and steam can be obviously reduced, the production cost is obviously reduced, and the pollution to the ecological environment, particularly the water resource, is reduced.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing technology, and in particular relates to a dyeing method of polyester-cotton blended knitted fabrics. Background technique [0002] At present, the dyeing and finishing process of polyester-cotton blended knitted fabrics mainly adopts the two-bath two-step method for dyeing, that is, after dyeing the polyester part under weak acidic conditions, the polyester part is cleaned to ensure the color fastness of the polyester part, and then Under strong alkaline conditions, reactive dyes are used to dye the cotton part, and then soaped to ensure the color fastness of the cotton part. In addition to the pre-treatment process of the fabric, the whole process often takes more than 10 hours, not only the process is complicated , The process time is long, the water consumption is large, the energy consumption is large, the labor load is large, and the production volume is low, and the efficiency ...

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): D06P3/85D06P1/38D06P1/46D06P1/645D06P1/673D06P1/00D06P5/04D06P5/10D06L3/02
CPCD06P1/0032D06P1/38D06P1/46D06P1/645D06P1/6735D06P3/8228D06P5/04D06P5/10
Inventor 夏继平雷梅根
Owner 石狮市瑞鹰纺织科技有限公司
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