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Cotton fabric high-efficiency dyeing and finishing process

A cotton fabric, dyeing and finishing technology, applied in the processing of textile materials, continuous processing of textile materials, dyeing methods, etc., can solve the problems affecting the brightness and aesthetics of dyed fabrics, poor dyeing effect of natural dyes, dull fabric shades, etc. , to achieve good dyeing effect, improve color fixation and high dyeing fastness

Inactive Publication Date: 2015-10-21
TAICANG SHUANGYU CHEM FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process is complicated, the efficiency is low, and the energy consumption is high.
At the same time, during scouring, alkaline solutions such as hydrosulfite and sodium carbonate are usually used for high-temperature treatment, which will cause greater damage to the fibers.
[0005] In addition, in the dyeing process of cotton fiber fabrics, in order to reduce environmental pollution, natural dyes are currently being studied, but natural dyes usually need to be dyed at a lower temperature, and the dyeing effect of natural dyes is poor, and the dyed fabrics Its color fixation is low. In order to improve the color fixation, a large amount of soda ash and inorganic salts are usually added in the dyeing process, which brings great difficulties to the treatment of printing and dyeing wastewater with high salt content. For example, direct discharge will damage the ecological environment. It leads to soil salinization. At the same time, when natural dyes are used, some heavy metal ions are usually used as mordants, which do not meet the requirements of current ecological textiles, and the shade of fabrics after heavy metal ions mordant dyeing mostly becomes dim, which affects the brightness of dyed fabrics. and aesthetics

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

[0037] A high-efficiency dyeing and finishing process for cotton fabrics, comprising the following steps:

[0038] (1) Modification treatment: Put the cotton fabric into the plasma equipment for plasma treatment, the discharge power is 100W, the discharge frequency is 13.56MHz, and the treatment time is 3min; then put it in a water bath for treatment, the 2,3-ring Oxypropyltrimethylammonium chloride 20 g / L, sodium hydroxide 8 g / L, ethanol 200 g / L, liquor ratio 50:1, modified at 50°C for 60 min; finally put the fabric into the shell The treatment was carried out in a polysaccharide solution, in which chitosan was 5 g / L, ethanol was 20 g / L, and the bath ratio was 20:1. Soak it at 40°C for 30 minutes. After the end, it was re-injected into clean water to wash twice, and then dried in the air;

[0039] (2) Scouring and dyeing in the same bath: Dye the cotton fabric after low-temperature freezing treatment, specifically: immerse the fiber fabric in the clear water of the dyeing mac...

Embodiment 2

[0051] A high-efficiency dyeing and finishing process for cotton fabrics, comprising the following steps:

[0052] (1) Modification treatment: Put the cotton fabric into the plasma equipment for plasma treatment, the discharge power is 100W, the discharge frequency is 13.56MHz, and the treatment time is 3min; then put it in a water bath for treatment, the 2,3-ring Oxypropyltrimethylammonium chloride 25 g / L, sodium hydroxide 9 g / L, ethanol 25 g / L, liquor ratio 50:1, modified treatment at 50°C for 70 min; finally put the fabric into the shell The treatment was carried out in a polysaccharide solution, in which chitosan was 6g / L, ethanol was 25 g / L, and the bath ratio was 20:1. Soak at 40°C for 30min. After the end, re-inject clean water to wash twice, and then dry it;

[0053] (2) Scouring and dyeing in the same bath: Dye the cotton fabric after low-temperature freezing treatment, specifically: immerse the fiber fabric in the clear water of the dyeing machine at room temperature...

Embodiment 3

[0065] A high-efficiency dyeing and finishing process for cotton fabrics, comprising the following steps:

[0066] (1) Modification treatment: Put the cotton fabric into the plasma equipment for plasma treatment, the discharge power is 100W, the discharge frequency is 13.56MHz, and the treatment time is 3min; then put it in a water bath for treatment, the 2,3-ring Oxypropyltrimethylammonium chloride 30 g / L, sodium hydroxide 10 g / L, ethanol 30 g / L, liquor ratio 50:1, modified treatment at 50°C for 80 min; finally put the fabric into the shell The treatment was carried out in a polysaccharide solution, in which chitosan was 7 g / L, ethanol was 30 g / L, and the bath ratio was 20:1. Soak at 40°C for 30 minutes. After the end, re-inject water to wash twice, and then dry it;

[0067] (2) Scouring and dyeing in the same bath: Dye the cotton fabric after low-temperature freezing treatment, specifically: immerse the fiber fabric in the clear water of the dyeing machine at room temperatur...

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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PUM

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Abstract

The invention discloses a cotton fabric high-efficiency dyeing and finishing process including modification treatment, scouring and dyeing in one bath, soaping, color fixation, post-finishing, drying, sizing, calendering, and coiling. Ultrasonic waves are used for pretreatment; at the same time, before a dyeing process, a fabric is subjected to low temperature plasma treatment, then the fiber fabric is subjected to modification treatment with 2,3-epoxypropyltrimethylammonium chloride and finally is treated by chitosan, and thus the fabric dyeing degree is increased, and the difficulty of the subsequent dyeing steps is reduced; with adopting of scouring and dyeing in one bath, the efficiency is increased, and the cost is reduced; in the dyeing process, a large amount of alkaline substances and inorganic salts are not used, natural dyes are used, and at the same time, a colophony powder is added as a color fixing agent, so that the color fixing effect is enhanced, besides, the environmental pollution is avoided, and the requirements of environmental protection are met; montmorillonite is used for flame retardant treatment on the fabric, so that the flame retardancy of the fabric is high; and with increase of anti-yellowing finishing, a final fabric does not easily turn yellow.

Description

technical field [0001] The invention relates to a high-efficiency dyeing and finishing process for cotton fabrics. Background technique [0002] Fibers are divided into chemical fibers and natural fibers. Chemical fibers are fibers with textile properties made from natural polymer compounds or artificially synthesized polymer compounds through the processes of preparing spinning dope, spinning and post-treatment. Chemical fibers have the advantages of light resistance, wear resistance, easy washing and drying, no mildew, no moths, etc., and are widely used in the manufacture of clothing fabrics, filter cloths, conveyor belts, hoses, ropes, fishing nets, electrical insulation threads, medical sutures , tire cord and parachute etc. [0003] Natural fiber refers to the fiber that exists and grows in nature and has textile value. Cotton fiber is a natural fiber with good moisture absorption and air permeability, soft and warm, so it is widely used in the textile field. [0004...

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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IPC IPC(8): D06M10/02D06M13/463D06M13/144D06M11/38D06M15/03D06P3/60D06P1/34D06P1/44D06P1/46D06P1/673D06P5/10D06P5/08D06P5/04D06M11/79D06L1/16D06B21/00D06B3/10D06B15/00D06M101/06
Inventor 吴晓宇
Owner TAICANG SHUANGYU CHEM FIBER CO LTD
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