A kind of preparation method of antibacterial and antiviral cotton fabric, cotton fabric and application thereof

A technology for poisonous cotton fabrics and cotton fabrics is applied in the field of preparation of antibacterial and antiviral cotton fabrics, which can solve the problems of chitosan no longer having bactericidal ability, weakening bacteriostatic ability, and great influence of bacteriostatic effect, so as to increase the wide range of applications. spectrum antibacterial properties and hydrophilicity, durable antibacterial and antiviral, improved adaptability

Active Publication Date: 2018-04-20
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 % octadecadecyl 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, washe...

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 antibacterial and antiviral cotton fabric, cotton fabric and application thereof. The preparation method comprises the following steps: pretreating the cotton fabric to generate reactive free radicals; making the pretreated cotton fabric Soaking in the finishing solution for finishing treatment to introduce at least two different types of antibacterial and antiviral groups on the cotton fabric to obtain the antibacterial and antiviral cotton fabric. The invention uses ultraviolet light or low-temperature plasma to pretreat cotton fabric to generate reactive free radicals, and then enters at least two different types of functional groups with antibacterial and antiviral properties. The cotton fabric of the present invention increases the broad-spectrum antibacterial performance and hydrophilicity of the cotton fabric while maintaining the good moisture absorption and air permeability of chitosan and biocompatibility, and the cotton fabric forms chemical bonds with the antibacterial and antiviral functional groups The connection significantly improves the washability of functional cotton fabrics, and also improves the broad-spectrum antibacterial properties and multi-field adaptability of functional cotton fabrics.

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 Patents(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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