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Durable flame-retardant finish method for cotton fabric based on ultraviolet light curing reaction

A curing reaction and flame retardant finishing technology, applied in physical treatment, flame retardant fiber, fiber treatment, etc., can solve the problems of difficult wall thickness control, high preparation cost, stiff hand feeling, etc., and achieve good application prospects and flame retardant effect Obvious, simple and easy effect

Inactive Publication Date: 2017-05-10
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also disadvantages, such as the flame retardant effect is not durable, high temperature baking is easy to make the fabric yellow and feel stiff
However, the microencapsulated flame retardant finishing also has certain disadvantages: the selection and design of core materials and shell materials are more troublesome; the control of wall thickness is more difficult; the quality of some existing microencapsulated flame retardants needs to be further improved; The preparation cost is high, the coating rate is not high, and the application field is limited
However, there are few studies on the application of click chemistry to the functional finishing of textiles. Some related studies have shown that cotton fabrics are modified with mercapto groups using silane coupling agents, and the cotton fabrics are endowed with excellent water repellency through UV curing; TCEP reduces the sulfhydryl groups of wool and endows the wool with excellent antibacterial properties by UV curing

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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  • Durable flame-retardant finish method for cotton fabric based on ultraviolet light curing reaction
  • Durable flame-retardant finish method for cotton fabric based on ultraviolet light curing reaction
  • Durable flame-retardant finish method for cotton fabric based on ultraviolet light curing reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Use 3-mercaptopropyltriethoxysilane to modify the cotton fabric, and react with the synthetic flame retardant DHTP to make the cotton have good flame retardant properties. The specific steps are:

[0035] (1) Pre-processing stage:

[0036] ①Prepare 15g / L sodium hydroxide and 7g / L PingPingO solution, and wash the cotton fabric for 20min at 70°C;

[0037] ②Prepare 1wt% 3-mercaptopropyltriethoxysilane ethanol / water mixed solution (80:20 by volume), adjust the pH to 3.5 with acetic acid, seal the beaker with a thin film, and place it in a constant temperature magnetic stirring water bath for 25 ℃ shaking treatment for 30 minutes, and then soak the washed cotton fabric in the solution for 3 minutes.

[0038] ③Take out the cotton fabric and bake it at a high temperature of 120°C for 5 minutes.

[0039] (2) Synthesis stage

[0040] ① Dissolve THAT and DP in chloroform, place in a constant temperature magnetic stirring water bath, condense and reflux, add DBU dropwise at 65°...

Embodiment 2

[0048] Use 3-mercaptopropyltriethoxysilane to modify the cotton fabric, and react with the synthetic flame retardant DHTP to make the cotton have good flame retardant properties. The specific steps are:

[0049] (1) Pre-processing stage:

[0050] ①Prepare 15g / L sodium hydroxide and 7g / L PingPingO solution, and wash the cotton fabric for 20min at 70°C;

[0051] ②Prepare 2wt% 3-mercaptopropyltriethoxysilane ethanol / water mixed solution (volume ratio 80:20), adjust the pH to 3.5 with acetic acid, seal the beaker with a film, place it in a constant temperature magnetic stirring water bath, 25 ℃ shaking treatment for 30 minutes, and then soak the washed cotton fabric in the solution for 3 minutes.

[0052] ③Take out the cotton fabric and bake it at a high temperature of 120°C for 5 minutes.

[0053] (2) Synthesis stage

[0054] ① Dissolve THAT and DP in chloroform, place in a constant temperature magnetic stirring water bath, condense and reflux, add DBU dropwise at 65°C, TAHT:D...

Embodiment 3

[0062] Use 3-mercaptopropyltriethoxysilane to modify the cotton fabric, and react with the synthetic flame retardant DHTP to make the cotton have good flame retardant properties. The specific steps are:

[0063] (1) Pre-processing stage:

[0064] ①Prepare 15g / L sodium hydroxide and 7g / L PingPingO solution, and wash the cotton fabric for 20min at 70°C;

[0065] ②Prepare 5wt% 3-mercaptopropyltriethoxysilane ethanol / water mixed solution (volume ratio 80:20), adjust the pH to 3.5 with acetic acid, seal the beaker with a film, place it in a constant temperature magnetic stirring water bath, 25 ℃ shaking treatment for 30 minutes, and then soak the washed cotton fabric in the solution for 3 minutes.

[0066] ③Take out the cotton fabric and bake it at a high temperature of 120°C for 5 minutes.

[0067] (2) Synthesis stage

[0068] ① Dissolve THAT and DP in chloroform, place in a constant temperature magnetic stirring water bath, condense and reflux, add DBU dropwise at 65°C, TAHT:D...

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 relates to a durable flame-retardant finish method for a cotton fabric based on ultraviolet light curing reaction. The method comprises the following steps: washing a cotton fabric, then putting into an acidic 1-5wt% thiohydroxy-containing silane coupling agent solution, dipping to perform thiohydroxy modification, and drying to obtain a thiohydroxy modified cotton fabric; (2) taking 1,3,5-triacryloylhexahydro-1,3,5-triazine TAHT and dimethyl phosphite DP, adding 1,8-diazabicycloundec-7-ene DBU, and reacting over night while stirring to obtain flame retardant DHTP; and (3) preparing the flame retardant DHTP in the step (2) into a solution, dipping the thiohydroxy modified cotton fabric in the step (1) in the DHTP solution to perform ultraviolet light curing reaction, washing with water, and drying to obtain a flame-retardant cotton fabric. The method provided by the invention is simple and easy to implement; the cotton fabric can keep the original moisture absorption property and other excellent properties; and the cotton fabric is endowed with flame retardancy while the durability is improved, has the advantages of obvious flame-retardant effect, safety and long-lasting action, and can not do harm to human bodies and environments, thereby having favorable application prospects.

Description

technical field [0001] The invention belongs to the field of cotton fabric finishing, in particular to a durable flame-retardant finishing method for cotton fabric based on ultraviolet light curing reaction. Background technique [0002] Cotton fiber products are widely used in clothing, decorative materials and other fields because of their softness, breathability, moisture absorption and excellent performance. However, cotton fibers are extremely flammable. The limiting oxygen index of natural cotton fibers is about 18. In order to reduce the risk of combustion And the release of toxic gases during combustion, reducing the loss of people's lives and property, it is particularly important to perform flame-retardant finishing on cotton fabrics. [0003] At present, the existing flame retardant finishing methods roughly include the following types: [0004] One is impregnated flame retardant finishing. That is to say, the flame retardant is made into a mixed solution with a...

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): D06M13/513D06M10/08D06M101/06
CPCD06M13/513D06M10/08D06M2101/06D06M2200/30
Inventor 许丽金俞丹王炜
Owner DONGHUA UNIV
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