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Durable flame-retardant after-finishing method for fabric

A flame-retardant finishing and durability technology, which is applied in fiber processing, textiles and papermaking, etc., to achieve excellent washing resistance, reduced damage length, and easy industrialization.

Inactive Publication Date: 2011-09-28
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. The surface photografting technology is introduced into the flame retardant treatment of fabric finishing. At present, there are no domestic 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

[0015] Nylon fabric is boiled in boiling water for 1 hour, then extracted in acetone for 10 hours, and the pretreated nylon fabric is soaked in a flame-retardant finishing solution at room temperature. The finishing solution uses acetone as a solvent, in which 2-hydroxyethylmethyl The mass percentage concentration of acrylate phosphate is 50%, the mass percentage concentration of benzophenone is 0.5%, and the mass percentage concentration of photocrosslinking agent methylenebisacrylamide is 4.0%. After being taken out quickly, it is subjected to a padding process. During the padding process, the soaking time is 2 hours, the rotating speed is 0.2m / s, and the pressure is 0.5Mpa. Put the padded nylon fabric into the photografting box for surface grafting, and the intensity of the ultraviolet light is 100w / cm 2 , the irradiation height is 30cm, and the irradiation time is 20min. After the grafting reaction was completed, the nylon fabric was extracted with acetone for 24 hours, r...

Embodiment 2

[0017] The polyester fabric is boiled in boiling water for 1 hour, and then extracted in acetone for 10 hours. The pretreated polyester fabric is soaked in a flame-retardant finishing solution at room temperature. The finishing solution uses acetone as a solvent, in which 2-hydroxyethyl methyl The mass percent concentration of acrylate phosphate is 30%, and the photoinitiator 1-[4-(2-hydroxyethoxy)-phenylene]-2-hydroxyl-2', 2'-dimethylethanone The mass percent concentration is 3.0%, and the mass percent concentration of the photocrosslinking agent triallyl isocyanurate is 0.5%. After being quickly taken out, it is subjected to a padding process. During the padding process, the soaking time is 1 hr, the rotating speed is 0.2m / s, and the pressure is 2.0Mpa. Put the polyester fabric after padding into the photografting box for surface grafting, and the intensity of the ultraviolet lamp is 100w / cm 2 , the irradiation height is 30cm, and the irradiation time is 5min. After the gr...

Embodiment 3

[0019] The polypropylene non-woven fabric is boiled in boiling water for 1 hour, and then extracted in acetone for 10 hours. The pretreated polypropylene non-woven fabric is soaked in a flame-retardant finishing solution at room temperature. The finishing solution uses acetone as a solvent, in which O , the mass percent concentration of O-dimethyl-O-vinyl phosphate is 40%, the mass percent concentration of photoinitiator 2-hydroxyl-2-methyl-1-phenyl-1-acetone is 2.0%, and the light The mass percent concentration of the crosslinking agent triallyl isocyanurate is 2.0%. After being taken out quickly, it is subjected to a padding process. During the padding process, the soaking time is 3 hours, the rotating speed is 0.2m / s, and the pressure is 1.0Mpa. Put the padded polypropylene non-woven fabric into the photografting box for surface grafting, and the intensity of the ultraviolet lamp is 100w / cm 2 , the irradiation height is 20cm, and the irradiation time is 15min. After the g...

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Abstract

The invention relates to a durable flame-retardant after-finishing method for fabric. The method comprises the following steps of soaking pretreated fabric in a flame-retardant finishing solution, processing the fabric with the conventional pad finishing technique, and grafting photosensitive phosphatic flame-retardant monomer onto the modified fabric by using a surface photo-grafting technology.By utilizing the principle that the photoinitiator can extract active hydrogen on the fabric surface under the irradiation of ultraviolet light to form macromolecular free radicals, the finishing technique grafts the flame-retardant grafted chain onto the fabric surface in the form of covalent bonds, thereby achieving the goal of carrying out durable flame-retardant finishing on the fabric. All selected cross-linking agents contain element N which can perform the P-N synergistic effect with element P in the flame-retardant monomer, thereby being beneficial to further enhancing the flame retardant property of the fabric. The invention enhances the durability of the flame-retardant finishing fabric, has the advantages of low system cost and low pollution, and has better flame-retardant effect on the fabric. The oxygen index of the fabric can reach about 34.0, and the fabric does not produce melt drops in the vertical burning process; and after the fabric is washed with water 50 times, the oxygen index is still about 26.5.

Description

technical field [0001] The invention relates to a flame retardant method for finishing fabrics. In particular, it relates to a flame-retardant method for fabric durability after finishing by adopting a surface photografting method. Background technique [0002] With the continuous development of the textile industry and the rapid growth of industrial and household textiles, textile fires are also increasing. On December 28, 1994 in our country, the huge fire at the Karamay Friendship Hall in Xinjiang caused 323 deaths, 284 of whom were children. The direct cause of the fire was that the lighting on the stage ignited the curtain. At present, hotels in large and medium-sized cities and tourist hotspots, high-rise buildings, and luxury decorations used in all airplanes, ships, trains, curtains, curtains, sofas, cushions, bedding, carpets, etc. are inseparable from textile products, but because textiles are extremely flammable and easy to cause fires nature, will cause huge ec...

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): D06M14/32D06M14/28D06M14/34
Inventor 张胜刘微余莉花冯庆立
Owner BEIJING UNIV OF CHEM TECH
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