Preparation method of antibacterial antivirus cotton fabric, cotton fabric and applications thereof

A technology of poisonous cotton fabric and cotton fabric, which is applied in the field of antibacterial and antiviral cotton fabric preparation, can solve the problems of weakened antibacterial ability, great influence of antibacterial effect, and chitosan no longer has bactericidal ability, etc., to achieve durable antibacterial And anti-virus, improve adaptability, increase broad-spectrum antibacterial performance and hydrophilic effect

Active Publication Date: 2015-12-23
SHENZHEN QIANHAI GUANGDA TECH INFORMATION SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The broad-spectrum antibacterial properties of chitosan have been widely recognized. However, the pH value has a great influence on the antibacterial effect of chitosan. As the pH value increases, the solubility and protonation degree of chitosan decrease, and the antibacterial The ability gradually weakens, and when the pH is above 7, chitosan no longer has the ability to kill bacteria

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

[0030] 1. Preparation

[0031] A. Pretreatment of cotton fabric. UV light treatment of cotton fabric (20% pure cotton, 80% polyester): under the condition of a high-pressure mercury vapor lamp with a UV light power of 250W and a light intensity of 70%, put 5g of cotton fabric in 100mL of distilled water, add 0.18wt% Benzophenone, stirred at room temperature for 30min. After the reaction, wash with distilled water and ethanol to neutrality, and vacuum-dry at 80° C. to obtain a treated cotton fabric.

[0032] B. Finishing the pretreated cotton fabric to obtain antibacterial and antiviral cotton fabric.

[0033] B-1. Synthesis of glycidyl fatty alkyl dimethyl ammonium chloride: prepare 100 mL of 6 wt % octadecyl tertiary amine / water solution, and heat to 50° C. under stirring. Slowly add 7wt% epichlorohydrin dropwise, react at constant temperature for 18 hours, and stop the reaction. The obtained product was distilled under reduced pressure, the solvent was removed, washed wi...

Embodiment 2

[0037] 1. Preparation

[0038] A. Pretreatment of cotton fabric. Ultraviolet light treatment of cotton fabric (80% pure cotton, 20% polyester): under the condition of high-pressure mercury vapor lamp with ultraviolet light power of 150W and light intensity of 50%, add 5g cotton fabric to 100mL distilled water, add 0.1wt% supernatant Oxidize dibenzoyl, stir at room temperature for 90 minutes. After the reaction, wash with distilled water and ethanol to neutrality, and vacuum-dry at 80° C. to obtain a treated cotton fabric.

[0039] B. Finishing the pretreated cotton fabric to obtain antibacterial and antiviral cotton fabric.

[0040] B-1. Prepare 100mL of 5wt% dodecyl tertiary amine / acetone solution, and heat to 50°C while stirring. Slowly add 2wt% epichlorohydrin dropwise, react at constant temperature for 6h, and stop the reaction. The obtained product was distilled under reduced pressure, the solvent was removed, washed with absolute ethanol, put into a vacuum drying ove...

Embodiment 3

[0044] 1. Preparation

[0045] A. Pretreatment of cotton fabric. UV light treatment of cotton fabric (50% pure cotton, 50% polyester): under the condition of a high-pressure mercury vapor lamp with a UV light power of 400W and a light intensity of 100%, 5g of cotton fabric was added to 100mL of distilled water, and 0.15wt% distilled water was added. Azodiisobutyronitrile, stirred at room temperature for 60 min. After the reaction, wash with distilled water and ethanol to neutrality, and vacuum-dry at 80° C. to obtain a treated cotton fabric.

[0046] B. Finishing the pretreated cotton fabric to obtain antibacterial and antiviral cotton fabric.

[0047] B-1. Prepare 100 mL of 20wt% tetradecyl-tertiary amine / methanol solution, and heat to 50°C while stirring. Slowly add 8wt% epichlorohydrin dropwise, react at constant temperature for 24 hours, and stop the reaction. The obtained product was distilled under reduced pressure, the solvent was removed, washed with absolute ethan...

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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PUM

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Abstract

The invention discloses a preparation method of an antibacterial antivirus cotton fabric, a cotton fabric and applications thereof. The preparation method comprises the following steps: preprocessing cotton fabrics to generate free radicals that can react; and soaking the preprocessed cotton fabrics in a finishing solution to carry out a finishing treatment to introduce at least two different kinds of antibacterial antivirus groups into the cotton fabrics so as to obtain the antibacterial antivirus cotton fabric. According to the preparation method, the cotton fabric is preprocessed by ultraviolet lights or plasma so as to generate reactive free radicals, and then at least two different kinds of functional groups with antibacterial antivirus functions are introduced into the cotton fabric. The provided cotton fabric has the advantages of chitosan such as moisture absorption function, breathability, good biocompatibility, and the like, and at the same time has a broad-spectrum antibacterial function and hydrophilicity. Moreover, the cotton fabric is connected to the functional groups with antibacterial antivirus functions through chemical bonds, the washing resistant function of functional cotton fabric is prominently enhanced, the broad-spectrum antibacterial function of the functional cotton fabric is also improved, and the application range of the cotton fabric is enlarged.

Description

technical field [0001] The invention relates to the field of cotton fabrics, in particular to a preparation method of antibacterial and antiviral cotton fabrics, cotton fabrics and applications thereof. Background technique [0002] People are often infested by bacteria and viruses in daily life, affecting people's quality of life, seriously even endangering human life and health. Because ordinary textiles do not have antibacterial properties, they adhere to human secretions during the wearing process of the human body and become a good environment for bacterial growth, endangering human health. The wide application of antibacterial materials began with the prevention of bacterial infections in hospitals and the attention and protection of personal hygiene; in addition, regarding viruses, the SARS (Severe Acute Respiratory Syndrome) virus that broke out in 2003, because it is easy to enter through the respiratory system The human body, the immune system, and the rapid repli...

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): D06M10/00D06M11/76D06M13/463D06M15/03D06M14/22D06M14/30D06M13/207D06M10/02D06M13/513D06M101/06D06M101/32
Inventor 陈文凯
Owner SHENZHEN QIANHAI GUANGDA TECH INFORMATION SERVICE
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