Non-ironing finishing method capable of enhancing tearing strength of cotton fabric

A technology of non-iron finishing and tear strength, which is applied in the field of cotton fabric finishing, can solve the problems of tear strength drop, formaldehyde release, and poor careability, and achieve the effect of improving deformation recovery ability and promoting softening

Inactive Publication Date: 2019-08-09
合肥巧织纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although cotton fabrics and their products have excellent wearing comfort, they are easy to wrinkle after washing, and the ease of care is poor. Generally, non-ironing finishing is required to improve the ease of care
Although the commonly used N-methylol amide non-ironing finishing agent can give cotton fabrics an ideal non-ironing effect and the cost is low, there are problems such as formaldehyde release and a sharp drop in tear strength.
This is because after the N-methylol finishing agent is treated on the cotton fabric, even if it is an etherified modified 2D resin, and after washing with water and capturing free formaldehyde, the N-methylol bond will It will still be slowly hydrolyzed and slowly release formaldehyde; covalent crosslinks are formed between the cotton fiber molecular chains after non-ironing finishing, the sliding ability is weakened, the molecular chains are unevenly stressed, and easy to break, especially if the tear strength is too low many
At present, polycarboxylic acid is the most researched type of formaldehyde-free non-ironing finishing agent. The finished cotton fabric has a good non-ironing effect, but the cost is high, and the use of polycarboxylic acid for non-ironing finishing can only play a role. Improve the tear strength of cotton fabrics, but not enhance the tear strength

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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  • Non-ironing finishing method capable of enhancing tearing strength of cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for non-ironing finishing that can enhance the tear strength of cotton fabrics, the specific method is as follows:

[0026] 1) Soak the cotton fabric in a sodium hydroxide solution with a concentration of 0.1mol / L, treat it in a water bath at 60°C for 30 minutes, then wash it with distilled water until neutral, and then use acetone, absolute ethanol, and deionized water in sequence Perform ultrasonic cleaning for 10 minutes, and dry at 50°C after washing;

[0027] 2) Put the dried cotton fabric into -100°C environment for freezing treatment for 3 hours, then slowly raise the temperature to room temperature, keep it warm at room temperature for 3 hours, and repeat the treatment 5 times by using the method of freezing + returning to temperature interactive treatment, and then After washing the treated cotton fabric, dry it at 50°C;

[0028]3) Add the modified nano-antimony sulfide graft polymer powder into distilled water, mix and stir to prepare an aqueous solu...

Embodiment 2

[0040] A method for non-ironing finishing that can enhance the tear strength of cotton fabrics, the specific method is as follows:

[0041] 1) Soak the cotton fabric in a sodium hydroxide solution with a concentration of 0.2mol / L, treat it in a water bath at 70°C for 25 minutes, then wash it with distilled water until it is neutral, and then use acetone, absolute ethanol, and deionized water in sequence Perform ultrasonic cleaning for 15 minutes, and dry at 55°C after washing;

[0042] 2) Put the dried cotton fabric into the environment of -75°C for freezing treatment for 2 hours, then slowly raise the temperature to room temperature, keep it at room temperature for 4 hours, and repeat the treatment 3 times by using the method of freezing + returning to temperature interactive treatment, and then After washing the treated cotton fabric, dry it at 55°C;

[0043] 3) Add the modified nano-antimony sulfide graft polymer powder into distilled water, mix and stir to prepare an aque...

Embodiment 3

[0055] A method for non-ironing finishing that can enhance the tear strength of cotton fabrics, the specific method is as follows:

[0056] 1) Soak the cotton fabric in a sodium hydroxide solution with a concentration of 0.3mol / L, treat it in a water bath at 80°C for 30 minutes, then wash it with distilled water until it is neutral, and then use acetone, absolute ethanol, and deionized water in sequence Perform ultrasonic cleaning for 20 minutes, and dry at 60°C after washing;

[0057] 2) Put the dried cotton fabric into -50°C environment for freezing treatment for 1 hour, then slowly raise the temperature to room temperature, keep it warm at room temperature for 5 hours, and repeat the treatment 5 times by using the method of freezing + returning to temperature interactive treatment, and then After washing the treated cotton fabric, dry it at 60°C;

[0058] 3) Add the modified nano-antimony sulfide graft polymer powder into distilled water, mix and stir to prepare an aqueous...

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 non-ironing finishing method capable of enhancing the tearing strength of a cotton fabric. The method comprises the following specific steps that 1, the cotton fabric is soaked in a sodium hydroxide solution, is washed with distilled water until the cotton fabric is neutral after water bath treatment, and is subjected to ultrasonic cleaning by using acetone, absolute ethyl alcohol and deionized water in sequence; 2, the cotton fabric is treated by adopting a freezing and temperature-return interactive processing method; 3, modified nanometer antimony sulfide grafted polymer powder is added into distilled water, mixed and stirred, then polyethylene glycol and polyvinylpyrrolidone are added in sequence, stirring and dissolving are conducted, then the cotton fabric is added, heating and heat preservation are carried out after stirring, then the cotton fabric is taken out and placed in a polytetrafluoroethylene lining of a high-pressure reaction kettle for heatingtreatment, and then the cotton fabric is washed with distilled water; 4, the cotton fabric is soaked in the distilled water for heat treatment, and then washed and dried. The non-ironing fabric can easily keep good appearance during washing and drying and in the wearing process in different seasons and weather.

Description

technical field [0001] The technical field of the cotton fabric finishing method of the present invention, in particular relates to a non-ironing finishing method capable of enhancing the tear strength of cotton fabric. Background technique [0002] With the continuous improvement of people's living standards, the demand for textiles is no longer limited to the inherent characteristics of fabrics such as warmth and comfort. According to different industries, groups of people, and uses, people have higher and higher requirements for textiles. , health, beauty, health care, protection and other clothing requirements, textile finishing technologies are also emerging. [0003] Although cotton fabrics and their products have excellent wearing comfort, they are easy to wrinkle after washing and have poor careability. Generally, non-ironing finishing is required to improve their careability. Although the commonly used N-methylol amide non-ironing finishing agents can give cotton f...

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): D06M11/38D06M10/00D06M15/37D06M15/53D06M15/356C08G83/00D06M101/06
CPCC08G83/001D06M10/00D06M11/38D06M15/356D06M15/37D06M15/53D06M2101/06D06M2200/50
Inventor 张海涛
Owner 合肥巧织纺织科技有限公司
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