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A kind of preparation method of green photocuring durable unidirectional moisture-conducting finishing agent

It is a one-way wetting and finishing agent technology. It is applied in fiber processing, physical processing, textiles and paper making. Excellent unidirectional wettability and the effect of improving surface roughness

Inactive Publication Date: 2015-08-12
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hydrophobic chemical substances selected by most researches are organic fluorine-based finishing agents. Although it has a good use effect and washable effect, this type of finishing agent is expensive, and the long carbon chain fluorine-containing finishing agent has a high biological Cumulative, extremely difficult to degrade, and a potential threat to human health and the environment; on the other hand, it is difficult for conventional macromolecular silicone compounds to achieve the water-repellent effect of organic fluorine
These water-repellent finishing agents need to be baked after finishing, which consumes a lot of energy and does not conform to the modern economic development theme of the country's green environmental protection and low energy consumption.
[0004] The water-repellent surface of textiles constructed by sol-gel technology has poor washability, mainly because the bonding fastness between silica coating and cellulose fabric is low, the degree of covalent crosslinking is limited, and some SiO2 particles are formed by physical adsorbed on the surface

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 4% ammonium sulfate aqueous solution dropwise to the water glass solution with a mass percentage concentration of 3%, adjust the pH=10.8, and stir at room temperature for 40 minutes; add 1% by weight of γ-azidopropyl triethoxy successively under stirring silane and 2% by weight cetyltrimethoxysiloxane, continue to stir for 12 hours, add 8% by weight of sodium alginate, and stir for 60 minutes to prepare a one-way moisture-conducting finishing agent.

[0027] The prepared unidirectional moisture-conducting finishing paste was printed on pure cotton fabrics by flat screen printing, dried at 80°C for 5 minutes, and irradiated with ultraviolet rays for 4 minutes at a wavelength of 254nm.

[0028] Use AATCC TM195-2009 "Liquid Moisture Management Characteristics of Fabrics" to test the moisture transfer and quick-drying performance after finishing, measure 3 times at different positions of the same sample, and take the average value. The measured one-way transmission inde...

Embodiment 2

[0030] Add 5% ammonium sulfate aqueous solution dropwise to the water glass solution with a concentration of 4% by mass, adjust the pH=10.8, and stir at room temperature for 40 minutes; add 1.5% by weight of γ-azidopropyl triethoxy base silane and 3% by weight dodecyltrimethoxysiloxane, continue to stir for 12 hours, add 7% by weight of sodium alginate, and stir for 60 minutes to prepare a one-way moisture-conducting finishing agent.

[0031] The prepared unidirectional moisture-conducting finishing paste was printed on pure cotton fabrics by flat screen printing, dried at 90°C for 4 minutes, and irradiated with ultraviolet rays for 5 minutes, with a wavelength of 254 nm.

[0032] Use AATCC TM195-2009 "Liquid Moisture Management Characteristics of Fabrics" to test the moisture transfer and quick-drying performance after finishing, measure 3 times at different positions of the same sample, and take the average value. The measured one-way transmission index amounted to 203.673. ...

Embodiment 3

[0034] Add 4% triammonium citrate aqueous solution dropwise to the water glass solution with a concentration of 5% by mass, adjust the pH=10.8, and stir at room temperature for 40 minutes; add 2% by weight of γ-azidopropyltri Ethoxysilane and 4% by weight cetyltrimethoxysiloxane were stirred for 12 hours, 9% by weight of sodium alginate was added, and stirred for 60 minutes to prepare a one-way moisture-conducting finishing agent.

[0035] The prepared unidirectional moisture-conducting finishing paste was printed on pure cotton fabrics by flat screen printing, dried at 100°C for 3 minutes, and irradiated with ultraviolet rays for 6 minutes at a wavelength of 254nm.

[0036] Use AATCC TM195-2009 "Liquid Moisture Management Characteristics of Fabrics" to test the moisture transfer and quick-drying performance after finishing, measure 3 times at different positions of the same sample, and take the average value. The measured one-way transmission index amounted to 326.871.

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PUM

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Abstract

The invention relates to a preparation method of a green light-cured durable one-way moisture-diversion finishing agent. The preparation method comprises the following steps of 1, adding 3 to 20wt% of sodium or potash water glass into a mixture of water and ethanol, adding greater than or equal to 4wt% of an ammonium salt aqueous solution into the mixed solution, adjusting a pH value, and carrying out stirring at a room temperature, 2, orderly adding 0.5 to 1wt% of gamma-azidopropyltriethoxysilane and 2 to 4wt% of a hydrophobic long-carbon chain alkyl siloxane into the mixed solution obtained by the step 1 with stirring, and sequentially carrying out stirring to obtain a modified nano-SiO2-hydrophobic long-carbon chain alkyl silanol cohydrolyzed solution, and 3, sequentially adding 0.5 to 15wt% of a thickener into the modified nano-SiO2-hydrophobic long-carbon chain alkyl silanol cohydrolyzed solution, and carrying out stirring to obtain the green light-cured durable one-way moisture-diversion finishing agent. The preparation method adopts the raw materials having wide sources and has a low cost. The green light-cured durable one-way moisture-diversion finishing agent has stable properties. A fabric treated by the green light-cured durable one-way moisture-diversion finishing agent has excellent one-way moisture-diversion performance and washing endurance and has wide market application prospects and good social benefits.

Description

technical field [0001] The invention belongs to the field of preparation of one-way moisture-conducting finishing agent, in particular to a preparation method of a green light-curing and durable one-way moisture-conducting finishing agent. Background technique [0002] With the improvement of living standards, people have higher and higher demands on the suitability and functionality of leisure and sports textiles. People look forward to high-quality products, and their desire to pursue health, comfort and taste is growing. Special functional textiles emerge in endlessly, and the trend of interpenetration and integration of casual wear and sportswear is increasingly favored by consumers. Athletes will excrete a lot of sweat when they engage in strenuous competitive sports, and the stickiness and damp feeling brought by sweat often affect the athlete's state. How to keep the body surface dry and comfortable during exercise is an important research topic. For the general publ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M10/06
Inventor 闵洁刘保江田太洲罗锦向中林姚金龙黄长根唐文君谢阳芬高品
Owner DONGHUA UNIV
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