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Method for flame-proof treatment of textiles based on light curing method

A flame retardant finishing and textile technology, applied in textiles, papermaking, fiber processing, etc., can solve the problems of high energy consumption and low processing efficiency, and achieve wide adaptability of substrates, low processing energy consumption, and improved flame retardant performance. Effect

Inactive Publication Date: 2014-05-07
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The textiles treated by this method have high flame retardancy, solve the technical problems of high energy consumption and low processing efficiency in traditional chemical finishing, and improve product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0023] The chemical fiber fabric is first coated and calendered with magnesium hydroxide and polyurethane acrylate prepolymer resin system, and then light-cured to improve the flame retardancy of the textile. Specific examples are as follows:

Embodiment 1

[0024] Implementation 1: The chemical fiber fabric selected in this implementation is polyester spinning.

[0025] (1) Preparation of urethane acrylate prepolymer: React an equal amount of TDI with HEA, use 0.2% dibutyltin laurate, add polyether diol long chain after 4 hours at 60°C, and continue the reaction for 2 hours.

[0026] (2) Photocurable resin coating and calendering with flame retardant function: the prepolymer content in the photocurable resin system is 30%, TPGDA 25%, the amount of ethyl acetate is 30%, the amount of photoinitiator is 1%, and the amount of hydrogen oxidized Magnesium 14%, spread and roll on the cloth surface after stirring.

[0027] (3) Photocuring treatment: After coating, the fabric is irradiated for 5s under the intensity of ultraviolet lamp 2000W.

[0028] The limiting oxygen index of the polyester fabric after photocuring treatment was 26.5%, and compared with the blank sample, the breaking strength of the fabric decreased by less than 5%. ...

Embodiment 2

[0029] Implementation 2: The chemical fiber fabric selected in this implementation is nylon spinning.

[0030] (1) Preparation of urethane acrylate prepolymer: React an equal amount of TDI with HEA, use 0.6% dibutyltin laurate, add polyether diol long chain after 6 hours of reaction time at 60°C, and continue the reaction for 4 hours.

[0031] (2) Photocurable resin coating and calendering with flame retardant function: the prepolymer content in the photocurable resin system is 30%, TPGDA 20%, the amount of ethyl acetate is 36%, the amount of photoinitiator is 2%, and the amount of hydrogen oxidized Magnesium 12%, after stirring evenly, spread and roll on the cloth surface.

[0032] (3) Photocuring treatment: After coating, the fabric is irradiated for 6s under the intensity of ultraviolet lamp 2000W.

[0033] After light-curing treatment, the nylon fabric and the limiting oxygen index are 27.0%. Compared with the blank sample, the breaking strength of the fabric decreases by...

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PUM

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Abstract

The invention discloses a method for flame-proof treatment of textiles based on a light curing method, belongs to the technical field of treatment and processing of textiles, and aims to overcome the defects that in the traditional after treatment and processing process, the curing temperature is high, the energy consumption in production is large, and the processing efficiency is low, so as to realize flame-proof treatment of the textiles under the light curing conditions. The main technology comprises the steps as follows: 1, firstly, synthesizing a urethane acrylate prepolymer, specifically, performing a reaction on isocyanate and hydroxyl acrylate at an equivalent molar ratio, and adding a polyether glycol long chain for further reaction to obtain the prepolymer; 2, blending an inorganic flame retardant with a light-cured resin system prepared from the urethane acrylate prepolymer, a reactive diluent, a photoinitiator and a solvent, and irradiating the textiles subjected to coating and roll compacting for a certain time under the UV-light, so as to complete curing of resin on the surfaces of textiles. According to the invention, the processed textiles are improved in flame-proof performance and less reduced in strength. Compared with a traditional thermal curing chemical treatment method, the method has the advantage that flame-proof treatment of the textiles based on the light curing method saves energy, is efficient, and has a short process.

Description

technical field [0001] The invention relates to a method for flame-retardant finishing of textiles based on photocuring, in particular to curing polyurethane acrylate prepolymers blended with flame-retardant finishing agents on the surface of fabrics by using high-energy ultraviolet light to impart flame-retardant properties to textiles The finishing method belongs to the technical field of textile finishing and processing. Background technique [0002] In recent years, with the rapid increase in the consumption of decorative textiles, the fires caused by textiles are increasing, among which the fires of bedding and home decoration cloth are one of the main reasons. After the burning textiles come into contact with the human body, it will cause skin burns at the slightest level and endanger life at the severest level. During the burning of textiles, a large amount of harmful gases released will also endanger people's health, including various gases such as carbon monoxide, ...

Claims

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Application Information

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IPC IPC(8): D06M23/00D06M15/568D06M11/44C08G18/67C08G18/48
Inventor 吴敏王平邱华
Owner JIANGNAN UNIV