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Dyeing process of polyester and cotton blended fiber

A technology of polyester-cotton blending and fiber, which is applied in the field of dyeing and finishing technology, can solve the problems of water consumption, power consumption, steam consumption, heavy labor, and complicated process, and achieve the goals of shortening process time and process, improving production efficiency, and reducing production cost. Effect

Inactive Publication Date: 2018-06-05
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

The entire technological process takes more than 10 hours, not only the process is complicated, the time is long, water consumption, electricity consumption and steam consumption, but also the labor load is large, the efficiency is low, and the output is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Pretreatment: Put the polyester-cotton blended yarn to be dyed into water at 40~50°C, pre-wet for 10 minutes, and then drain;

[0020] 2) Dyeing: according to the bath ratio of 1:3, immerse the polyester-cotton blended yarn pretreated in step 1) into the basic disperse dye dyeing solution of the required color, and the lye is polyester with 1% of the weight of the polyester-cotton blended yarn. Prepare cotton dyeing agent RY-209B, cover and seal, heat up to 50°C at a heating rate of 1°C / min, open the cover, add 3% hydrogen peroxide by weight of polyester-cotton blended yarn, cover and seal, heat up to 50°C at a heating rate of 1.5°C / min The heating rate is raised to 95°C, kept for 10 minutes, then raised to 125°C at a heating rate of 1.5°C / min, kept at a temperature of 30 minutes, cooled to 70°C at a rate of 2°C / min, and 2% of the weight of polyester-cotton blended yarn is added after opening the cover The caustic alkali, add 2% of the polyester-cotton blended yarn w...

Embodiment 2

[0023] 1) Pretreatment: Put the polyester-cotton blended jersey to be dyed into water at 40~50°C, pre-wet for 10 minutes, and then drain;

[0024] 2) Dyeing: According to the bath ratio of 1:10, immerse the polyester-cotton blended jersey pretreated in step 1) into the basic disperse dye dyeing solution of the required color, and the lye is made of 2% polyester by weight of the polyester-cotton blended jersey. Prepare cotton dyeing agent RY-209B, cover and seal, heat up to 70°C at a heating rate of 3°C / min, open the cover, add 4% hydrogen peroxide by weight of polyester-cotton blended jersey, cover and seal, heat up to 70°C at a heating rate of 1.5°C / min The heating rate is raised to 105°C, kept for 10 minutes, then raised to 130°C at a heating rate of 1.5°C / min, kept at a temperature of 30 minutes, cooled to 85°C at a rate of 2°C / min, and opened to add polyester-cotton blended jersey weight 2% Add the caustic alkali of polyester cotton 65 / 35 single jersey 2% of the weight of ...

Embodiment 3

[0027] 1) Pretreatment: Put the polyester-cotton blended flannelette to be dyed into water at 40~50°C, pre-wet for 10 minutes, and then drain;

[0028] 2) Dyeing: according to the bath ratio of 1:20, immerse the polyester-cotton blended flannel pretreated in step 1) into the basic disperse dye dyeing solution of the required color, and the lye is dyed with 4% polyester-cotton by weight of the polyester-cotton blended flannelette Prepared with agent RY-209B, cover and seal, heat up to 80°C at a heating rate of 3°C / min, open the cover, add 6% hydrogen peroxide by weight of polyester-cotton blended flannelette, cover and seal, and heat up at a heating rate of 1.5°C / min To 115°C, keep warm for 10min, then raise the temperature to 130°C at a heating rate of 1.5°C / min, keep warm for 30min, cool down to 100°C at a rate of 2°C / min, open the cover and add caustic alkali of 2% by weight of polyester-cotton blended flannelette, Add an environmentally friendly reducing agent of 2% by weig...

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PUM

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Abstract

The invention belongs to the technical field of dyeing and finishing processes, and particularly discloses a dyeing process of a polyester and cotton blended fiber. The dyeing process comprises the steps of pretreatment, dyeing and post treatment. According to the dyeing process, the same-bath process of oxygen-bleaching, dyeing and cleaning the polyester and cotton blended fiber (yarn, knitted fabric) is completed through adopting a one-bath and two-step-method process of dyeing polyester and oxygen-bleaching cotton in an alkaline-bath condition and then dyeing the cotton and cleaning the polyester; finally, the color development post treatment is carried out. In comparison with a conventional process, the process flow of the dyeing process is greatly simplified; the dyeing time is shortened; the energy and the production cost can be saved, and the pollution to an ecological environment, particularly to a water source, is reduced.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing processes, and in particular relates to a dyeing process of polyester-cotton blended fibers. Background technique [0002] At present, the dyeing and finishing of polyester-cotton blended fibers (yarns, knitted fabrics) in the market mainly adopts first oxygen bleaching (pretreatment), two-bath two-step dyeing, that is, dyeing and cleaning polyester parts under weakly acidic conditions to ensure The color fastness of the polyester part, and then the cotton part is dyed with reactive dyes under strong alkaline conditions, and soaped to ensure the color fastness of the cotton part. The whole technological process takes more than 10 hours, not only complicated process, long time, water consumption, electricity consumption and steam consumption, but also heavy labor, low efficiency and low output. Contents of the invention [0003] Aiming at the disadvantages existing in the existing d...

Claims

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Application Information

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IPC IPC(8): D06P1/16D06P1/22D06P1/44D06P1/00D06P1/673D06P3/82D06P5/02D06L4/13
CPCD06L4/13D06P1/0024D06P1/0032D06P1/16D06P1/22D06P1/445D06P1/673D06P1/6735D06P3/8247D06P5/02
Inventor 夏继平雷梅根
Owner 石狮市瑞鹰纺织科技有限公司