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Method for dyeing silk cotton blended spinning knitted fabric

A dyeing method and technology for knitted fabrics, which are applied in the field of knitted fabric dyeing and can solve the problems of poor homochromaticity, difficulty, and light color of blended fabrics

Inactive Publication Date: 2008-08-13
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Although spun silk and cotton are both hydrophilic natural fibers, their physical and chemical properties are also different due to their completely different chemical composition and microstructure, which causes the difference in dyeing performance between spun silk and cotton fibers. It is difficult to dye spun silk / cotton composite fabrics in consistent shades
Commonly used reactive dyes to dye silk / cotton blended fabrics usually have the disadvantages of low dyeing rate of spun silk, light color, and poor homochromaticity of blended fabrics

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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  • Method for dyeing silk cotton blended spinning knitted fabric
  • Method for dyeing silk cotton blended spinning knitted fabric
  • Method for dyeing silk cotton blended spinning knitted fabric

Examples

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Embodiment 1

[0033] Before dyeing, spun silk / cotton blended fabrics must be pre-treated to remove impurities from the fabric. In this example, weakly alkaline soda ash was selected in the scouring process, and an oxygen bleaching process was adopted.

[0034] The fabrics used are scoured and bleached using the following techniques:

[0035] Scouring and bleaching equipment: RY-12000 high temperature dyeing prototype

[0036] Process flow: rough cloth → scouring → hot water washing (70°C) → cold water washing → bleaching → hot water washing (70°C) → cold water washing scouring process conditions:

[0037] Prescription g / L

[0038] Scouring agent w100 4

[0039] Sodium silicate 0.5

[0040] Soda ash 1.5

[0041] Hydrosulfite 0.5

[0042] Bath ratio 1:20

[0043] Temperature and time 95°C, 40min.

[0044] Bleaching process conditions

[0045] Prescription g / L

[0046] hydrogen peroxide 4

[0047] Sodium silicate 1.5

[0048] Pingping plus O 0.3

[0049] Bath ratio 1:20

[0050] ...

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 dying method for silk / cotton blended knitted fabric, determining dying technique condition based on different silk / cotton blending ratio of the knitted fabric, comprising: (1) pretreatment process flow: boiling off the silk-cotton blended knitted fabric grey cloth, rinsing in hot water of 70 deg., rinsing in cold water, bleaching, rinsing in hot water of 70 deg., rinsing in cold water; (2) adding dye into the silk-cotton blended knitted fabric grey cloth at room temperature, then adding hexametaphosphate, heating to dying temperature (A) with a heating rate of 1 DEG C / min, adding a dyeing auxiliary agent anhydrous sodium sulfate (B), adding dyeing auxiliary agent sodium carbonate (C) after half of the dying period (D), cooling to room temperature after another half of dying period (D), rinsing, heating to 90DEG C with a heating rate of 2.2 DEG C / min, and soaping. The invented method overcomes shortcomings in prior art which are low silk dye-uptake, light color and unsatisfying blended knitted fabric concolores property, so that the concolores property of the blended knitted fabric is improved.

Description

technical field [0001] The invention belongs to the field of dyeing knitted fabrics, in particular to a method for dyeing silk-cotton blended knitted fabrics. Background technique [0002] Although spun silk and cotton are both hydrophilic natural fibers, their physical and chemical properties are also different due to their completely different chemical composition and microstructure, which causes the difference in dyeing performance between spun silk and cotton fibers. It is difficult to dye the spun silk / cotton composite fabric with consistent shades. Commonly used reactive dyes to dye silk / cotton blended fabrics usually have the disadvantages of low dyeing rate of spun silk, light color, and poor homochromaticity of blended fabrics. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for dyeing silk-cotton blended knitted fabrics so as to improve the dyeing homochromaticity of the blended fabrics. [0...

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): D06P3/85D06P1/38D06P1/673
Inventor 郭珊珊刘洋沈为戈强胜
Owner DONGHUA UNIV
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