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Processing method for sectionally dyed dischargeable yarns

A processing method and yarn technology are applied in the processing field of segment dyed yarn, which can solve the problems of alkali resistance to mercerization, non-discharge printing of fabrics, and subsequent mercerization resistance of segment dyed fabrics, so as to improve the processing quality and expand the Application-wide effects

Inactive Publication Date: 2012-06-27
WUXI NATURAL GREEN FIBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, medium-temperature reactive dyes are mostly used in space-dyed yarns, and the structures are mostly K and KE types. This causes the defect that space-dyed fabrics are not resistant to mercerizing after the process, but they can be used for discharge printing.
In order to solve the problem of non-alkali-resistant and mercerizing after the space-dyed yarn, manufacturers switch to high-temperature reactive dyes for space-dyeing, but this will cause the dilemma that the fabric cannot be discharged and printed

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

[0021] A processing method for 60S / 2 cotton space-dyed pull-out yarn, comprising the following processing steps:

[0022] 1. Yarn: 60S / 2 cotton yarn;

[0023] 2. Singeing and shaking: Singeing is performed on the yarn singeing machine, the burner temperature is 1050°C, and the speed is 800m / min. After singeing, the surface of the yarn is required to be smooth and clean, without yellowish white and uneven singeing; The skein weight of the yarn is 200g, and the frame length is 137.2cm;

[0024] 3. Cooking and bleaching: boil and bleach on the yarn dyeing machine, 27% hydrogen peroxide 4g / L, caustic soda 4g / L, scouring agent SSS 1g / L, temperature 100°C, time 45min;

[0025] 4. Dyeing: The "red + yellow" segment dyeing yarn is dyed on the segment dyeing machine, the total segment length is 68.6, the ratio of red and yellow segment length is 1:1, a total of 2 cycles. The red formula is: the concentration of reactive red is 2% (owf), sodium sulfate 50g / L, baking soda 15g / L, urea 1...

Embodiment 2

[0030] A processing method for 32S / 1 cotton linen (75 / 25) segment-dyed extractable mercerized yarn, comprising the following processing steps:

[0031] 1. Yarn: 32S / 1 cotton and linen (75 / 25) yarn;

[0032] 2. Singeing and shaking: Singeing is performed on the yarn singeing machine, the burner temperature is 1000°C, and the speed is 900m / min. After singeing, the surface of the yarn is required to be smooth and clean, without yellowish white and uneven singeing; The strand weight of the yarn is 150g, and the frame length is 137.2cm;

[0033] 3. Mercerizing: the concentration of alkali in the treatment solution is 32 degrees Baume, the temperature of the treatment solution is 20°C, the stretching is 1%, and the treatment time is 5.5 minutes;

[0034] 4. Cooking and bleaching: boil and bleach on the yarn dyeing machine, 27% hydrogen peroxide 5g / L, caustic soda 3g / L, scouring agent SSS 1.5g / L, temperature 95°C, time 30min;

[0035] 5. Dyeing: Dye the "black + dark gray" segment ...

Embodiment 3

[0040] A kind of processing method of 70S / 2 full cotton section dyed pullable mercerized yarn, comprising the following processing steps:

[0041] 1. Yarn: 70S / 2 cotton long-staple cotton yarn;

[0042] 2. Singeing and shaking: perform singeing processing on the yarn singeing machine, the temperature of the burner is 950 ℃, and the speed of the machine is 1000m / min. After singeing, the surface of the yarn is required to be smooth and clean, without yellowish white and uneven singeing; The skein weight of the yarn is 175g, and the frame length is 137.2cm;

[0043] 3. Mercerizing: the concentration of alkali in the treatment solution is 28 degrees Baume, the temperature of the treatment solution is 18°C, the stretching is 3%, and the treatment time is 6.5 minutes;

[0044] 4. Cooking and bleaching: boil and bleach on the skein dyeing machine, 27% hydrogen peroxide 6g / L, caustic soda 2g / L, scouring agent SSS 2g / L, temperature 100°C, time 35min;

[0045] 5. Dyeing: The "black + ...

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 relates to a processing method for sectionally dyed dischargeable yarns in the textile field. The method is characterized by comprising the following steps of: a, spinning full cotton or cotton-containing blended single yarns or compound yarns with different numbers into yarns; b, singeing and reeling, i.e. singeing and reeling the yarns obtained in step a; c, dyeing, i.e. sectionally dyeing the yarns with a dye capable of resisting alkali and having a dischargeable performance according to a specific process; d, steaming for fix color, i.e. steaming the yarns obtained in step d for fix color; and e, soaping the yarns obtained in step e, and performing water washing, water extrusion, drying and rewinding on the yarns. The sectionally dyed dischargeable yarn produced by the method covers the full cotton or cotton-containing blended single yarn or compound yarns with different numbers; and the method is applied to mercerized yarns and non-mercerized yarns and can be widely applied to multiple production processes of textile and garment. Compared with the traditional sectionally dyed dischargeable yarn technique, the processing method provided by the invention has the advantages that: a yarn dyed fabric of the sectionally dyed yarns can be mercerized by a strong alkali and also can be discharged and printed, so the application range of the sectionally dyed yarns is enlarged, and the processing quality of the sectionally dyed yarns is improved.

Description

technical field [0001] The invention relates to a processing method of space-dyed yarn in the technical field of textiles, in particular to a processing method of space-dyed yarn capable of strong alkali mercerization and discharge dyeing performance. Background technique [0002] Space dyeing refers to dyeing two or more different colors on a skein of yarn or fabric. The space dyeing products are novel and unique, changing the traditional single-color yarn dyeing method, and at most 6 colors can be dyed on one skein. The style of the fabric woven by space-dyed yarn has made a fundamental breakthrough, showing regularity in the irregularity, showing a three-dimensional effect in the plane, colorful and rich in layers, and is favored by consumers. However, medium-temperature reactive dyes are mostly used in space-dyed yarns, and the structures are mostly K and KE types. This causes the defect that space-dyed fabrics are not resistant to mercerizing after the process, but the...

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): D02G3/02D02G3/04D02G3/28D06C9/00D06B7/04D06P1/38D06P5/10D06L3/02D06L4/13
Inventor 朱国民
Owner WUXI NATURAL GREEN FIBER TECH
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