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After-finishing flame resistant method for nylon fabric

A nylon fabric and post-finishing technology, which is applied in fiber processing, textiles and papermaking, etc., to achieve the effects of low device cost, good flame retardant performance, and low cost

Inactive Publication Date: 2011-11-16
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The highlights of the present invention are: 1. For the first time, the surface photografting technology is introduced into the flame retardant treatment of fabric finishing. At present, there are no domestic and foreign literature and patent reports to apply this technology to fabric finishing flame retardant.

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

[0012] Nylon fabric is boiled in boiling water for 1 hour, then extracted in acetone for 10 hours, and then the pretreated nylon fabric is soaked in a flame-retardant finishing solution at room temperature. The finishing solution uses acetone as a solvent, and the mass percentage of acrylamide Concentration is 20%, and the mass percentage concentration of benzophenone is 0.5%, it is passed through padding process after taking out rapidly, when passing through this process, soaking time is 1hr, and rotating speed is 0.2m / s, and pressure is 0.5Mpa, will The nylon fabric after padding is put into the photografting box to carry out surface grafting, and the intensity of the ultraviolet light is 100w / cm 2 , the irradiation height is 5cm, and the irradiation time is 60min. After the grafting reaction is completed, the nylon fabric is extracted with acetone for 24hrs, rinsed with water and placed in an oven at 80°C for 30mins. The oxygen index measured at this time is 26.6, and the ve...

Embodiment 2

[0014] Nylon fabric is boiled in boiling water for 1 hour, then extracted in acetone for 10 hours, and then the pretreated nylon fabric is soaked in flame-retardant finishing solution at room temperature. The finishing solution uses acetone as solvent, and the content of methacrylamide The mass percent concentration is 15%, and the mass percent concentration of photoinitiator 1-[4-(2-hydroxyethoxy)-phenylene]-2-hydroxyl-2', 2'-dimethylethanone is 3.0% %, take it out quickly and pass it through the padding process. When passing through this process, the soaking time is 0.5hr, the rotating speed is 0.2m / s, and the pressure is 1.0Mpa. The nylon fabric after padding is put into the photografting box for Surface grafting, UV lamp intensity is 100w / cm 2 , the irradiation height is 15cm, and the irradiation time is 50min. After the grafting reaction is completed, the nylon fabric is extracted with acetone for 24hrs, rinsed with water, and placed in an oven at 80°C for 30mins. The oxy...

Embodiment 3

[0016] Nylon fabric is boiled in boiling water for 1 hour, then extracted in acetone for 10 hours, and then the pretreated nylon fabric is soaked in flame-retardant finishing solution at room temperature. The finishing solution uses acetone as solvent, and the content of methacrylamide The mass percent concentration is 10%, and the mass percent concentration of the photoinitiator 2-hydroxyl-2-methyl-1-phenyl-1-acetone is 1.5%, and it is passed through the padding process after being taken out rapidly, during this process, The soaking time is 2hr, the rotating speed is 0.2m / s, and the pressure is 2.5Mpa. Put the padded nylon fabric into the photografting box for surface grafting, and the intensity of the ultraviolet lamp is 100w / cm 2 , the irradiation height is 15cm, and the irradiation time is 30min. After the grafting reaction is completed, the nylon fabric is extracted with acetone for 24hr, rinsed with water and placed in an oven at 80°C for 30min. At this time, the measure...

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Abstract

The invention relates to an after-finishing flame resistant method for a nylon fabric. The method comprises the following steps of: soaking the pre-treated nylon fabric into acrylic amide solution, and performing photo-grafting reaction of acrylic amide on the surface of the nylon fabric under the irradiation of ultraviolet light after a padding process of conventional finishing. By using the principle that a light initiator can extract active hydrogen from the surface of the nylon fabric under the irradiation of the ultraviolet light to form macromolecular free radicals, the method modifies the surface of the nylon fabric and introduces more amide groups into the side chain of polyamide so as to improve the nitrogen content of the polymer and fulfill the purpose of modifying the flame resistance of the nylon fabric.

Description

technical field [0001] The invention relates to a flame-retardant method for post-finishing nylon fabrics. In particular, it relates to a flame-retardant method for post-finishing nylon fabrics by adopting a surface photografting method. Background technique [0002] Nylon fiber is the first synthetic fiber put into industrial production in the world, and it is also a major variety of synthetic fiber. In the future, the demand for nylon fiber in the world will increase at an average growth rate of 2% to 3% on the basis of about 4000kt at present, and it will be mainly used for textile filaments, carpet filaments, industrial filaments and short fibers. Nylon fiber is a thermoplastic fiber. Due to the shrinkage of the fiber during burning and the melting and dripping of the burning part from the fabric, it shows a certain degree of self-flammability, but the melting and dripping will cause secondary fires or burn the wearer's skin. It poses a huge threat to the safety of peo...

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 Patents(China)
IPC IPC(8): D06M14/34
Inventor 张胜刘微余莉花冯庆立
Owner BEIJING UNIV OF CHEM TECH
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