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A kind of preparation method of antibacterial cotton fabric and obtained fabric

A technology of antibacterial cotton and extraction method, applied in plant fibers, textiles and papermaking, fiber processing, etc., can solve the problems of no antibacterial fabrics, uncomfortable close-fitting clothing, and fabrics that are not washable, so as to reduce property losses and achieve good antibacterial effects. , good hygienic effect

Active Publication Date: 2018-12-14
浙江吉麻良丝新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the existing antibacterial fabrics are chemically synthesized fabrics, which are not comfortable enough to be used as close-fitting clothing; there are also built-in silver ion antibacterial fabrics, which use spinning-grade antibacterial technology to directly put antibacterial agents into chemical fibers , but silver ions have strong neurotoxicity, which is not conducive to human health; there is also the fabric soaked in traditional Chinese medicine liquid, but this fabric is not washable, and it loses its antibacterial effect after being washed many times
At present, there is no research on the preparation of antibacterial fabrics by grafting antibacterial ingredients of traditional Chinese medicine with fabrics

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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  • A kind of preparation method of antibacterial cotton fabric and obtained fabric
  • A kind of preparation method of antibacterial cotton fabric and obtained fabric
  • A kind of preparation method of antibacterial cotton fabric and obtained fabric

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Extract berberine: crush 1kg of berberine into powder, pass through a 40-mesh sieve, add 6kg of ethanol aqueous solution with a mass fraction of 45%, and conduct ultrasonic extraction for 1.5 hours at a temperature of 75°C. The ultrasonic frequency is 28KHZ. After extraction, filter and take the filtrate. To obtain the berberine extract, add concentrated hydrochloric acid to adjust the pH=2, stir continuously, cool down to 5°C, let it stand for 16 hours, filter to obtain crude product crystals, recrystallize with water, and filter to obtain 11.6 g of berberine;

[0031] Preparation of antibacterial fabric: take 240g of cotton fiber, place it in 4.8kg of NaOH aqueous solution with a pH of 8.5, and soak it for 1 hour at a water bath temperature of 35°C; wash the soaked cotton fiber to neutral, add 4.8g of berberine, Add water, bath ratio 1:20, feed nitrogen, react at 60°C for 10 minutes, then raise to 80°C at 2°C / min, keep warm for 20 minutes, take it out and dry at 60°C ...

Embodiment 2

[0033] Extract berberine: crush 1kg of berberine into powder, pass through a 40-mesh sieve, add 5kg of ethanol aqueous solution with a mass fraction of 40%, and conduct ultrasonic extraction for 1 hour at a temperature of 70°C, with an ultrasonic frequency of 25KHZ. After extraction, filter and take the filtrate. To obtain the berberine extract, add concentrated hydrochloric acid to adjust the pH=1, stir continuously, cool down to 0°C, let it stand for 12 hours, filter to obtain crude product crystals, recrystallize with water, and obtain 9.4 g of berberine by filtration;

[0034] Preparation of antibacterial fabrics: Weigh 240g of cotton fiber, place it in 4.8kg of NaOH aqueous solution with a pH of 8.5, and soak it for 1 hour at a water bath temperature of 30°C; wash the soaked cotton fiber to neutral, add 5g of berberine, add water , bath ratio 1:20, feed nitrogen, react at 60°C for 10 minutes, then increase to 80°C at 2°C / min, keep warm for 20 minutes, take it out and place...

Embodiment 3

[0036] Extract berberine: crush 1kg of berberine into powder, pass through a 40-mesh sieve, add 8kg of ethanol aqueous solution with a mass fraction of 50%, and conduct ultrasonic extraction for 2 hours at a temperature of 80°C. The ultrasonic frequency is 40KHZ. After extraction, filter and take the filtrate. To obtain the berberine extract, add concentrated hydrochloric acid to adjust the pH=1.5, stir continuously, cool down to 10°C, let stand for 24 hours, filter to obtain crude product crystals, recrystallize with water, and filter to obtain 10.7 g of berberine;

[0037] Preparation of antibacterial fabric: take 240g of cotton fiber, place it in 4.8kg of NaOH aqueous solution with a pH of 8.5, and soak it for 1.5 hours at a water bath temperature of 40°C; wash the soaked cotton fiber to neutral, add 7g of berberine, add water , bath ratio 1:20, feed nitrogen, react at 60°C for 10 minutes, then increase to 80°C at 2°C / min, keep warm for 20 minutes, take it out and place it i...

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 discloses a preparation method of an anti-bacterial cotton fabric and a fabric prepared thereby and belongs to the technical field of textiles. The method comprises the following steps of extracting berberine from coptis chinensis; weighing cotton fibers, and soaking the cotton fibers with a NaOH aqueous solution with pH value of 8.5 at a temperature of 30-40 DEG C; washing with water to be neutral, and adding berberine according to the mass ratio of cotton fiber to berberine being 100: (1 to 3); introducing nitrogen at a bath ratio of 1:20, performing thermoregulation reaction, washing with water, and airing, thereby obtaining the anti-bacterial cotton fabric. The anti-bacterial cotton fabric prepared by the method has favorable sterilization and bacteriostatic effects, is wide in anti-bacterial spectrum, is capable of preserving favorable characteristics of the cotton fabric, is washable and durable, and still preserves favorable anti-bacterial effect after being washed with water for multiple times.

Description

technical field [0001] The invention belongs to the technical field of textiles, and more specifically relates to a method for preparing an antibacterial cotton fabric and the resulting fabric. Background technique [0002] Because cotton fabric is soft, breathable, sweat-absorbing, and does not hurt the skin, it is often used as a pajamas fabric. As a close-fitting fabric, it can bring people a stable and comfortable sleep. Cotton fiber is a porous substance, and its cellulose macromolecules There are many hydrophilic genes (-OH) on the fiber, so its hygroscopicity is better. Under general atmospheric conditions, the moisture regain of cotton fiber can reach about 8.5%. But cotton fabric has no bactericidal and antibacterial effect. In addition to water and salt, human sweat also contains lactic acid and urea. After the cotton fabric absorbs sweat, bacteria multiply and decompose keratin, plus urea and lactic acid in sweat, which will emit a bad smell. We often see plaque...

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): D06M13/477D06M101/06
CPCD06M13/477D06M2101/06
Inventor 衣振兴
Owner 浙江吉麻良丝新材料股份有限公司
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