Processing technology of high-performance antibacterial polypropylene spun-bonded non-woven fabric

A technology of polypropylene spunbonding and processing technology, which is applied in non-woven fabrics, textiles, papermaking, biochemical fiber treatment, etc. It can solve the problems of high cost, weak antibacterial ability, and human injury of chemical agents, and achieves stable antibacterial performance and antibacterial timeliness Long-lasting, pronounced antimicrobial properties

Inactive Publication Date: 2018-09-21
界首市圣通无纺布有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polypropylene, the processing material of polypropylene spunbonded nonwoven fabric, does not have antibacterial effect. Therefore, most of the antibacterial polypropylene spunbonded nonwoven fabrics currently on the market use chemical methods, photocatalysts or nano-silver ion treatment technologies for antibacterial processing. There are deficiencies: although chemical methods can be antibacterial, most of the chemical agents themselves are easy to cause harm to the human body; although photocatalysts are safe and effective, but the cost is high; although nano silver has antibacterial ability, but the antibacterial ability is weak

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Preparation of carboxylated polypropylene: fully mix 15g polypropylene powder and 5g nitric acid with a mass fraction of 70%, and then heat to 130°C for heat preservation and stirring reaction. After the reaction, the resulting mixture is naturally cooled to room temperature, and washed to remove nitric acid, and finally vacuum-dried and pulverized into powder to obtain carboxylated polypropylene;

[0028] (2) Antibacterial modification of polypropylene: dissolve 5g of chitosan hydrochloride in water, then add 35g of the prepared carboxylated polypropylene, stir well, and add dilute sulfuric acid dropwise to adjust the pH to 5, then heat to reflux Insulate and stir the reaction. After the reaction, cool the resulting mixture to room temperature naturally, then add dropwise sodium carbonate solution to adjust the pH value to 7, filter, wash with water to remove salt, and finally vacuum-dry and pulverize to make granules to obtain modified chitosan. polypropylene;

...

Embodiment 2

[0032] (1) Preparation of carboxylated polypropylene: fully mix 20g of polypropylene powder and 5g of nitric acid with a mass fraction of 70%, and then heat to 130°C for heat preservation and stirring reaction. After the reaction, the resulting mixture is naturally cooled to room temperature, and washed to remove nitric acid, and finally vacuum-dried and pulverized into powder to obtain carboxylated polypropylene;

[0033] (2) Antibacterial modification of polypropylene: Dissolve 8g of chitosan hydrochloride in water, then add 50g of the prepared carboxylated polypropylene, stir well, and add dilute sulfuric acid dropwise to adjust the pH value to 5, then heat to reflux state Insulate and stir the reaction. After the reaction, cool the resulting mixture to room temperature naturally, then add dropwise sodium carbonate solution to adjust the pH value to 7, filter, wash with water to remove salt, and finally vacuum-dry and pulverize to make granules to obtain modified chitosan. ...

Embodiment 3

[0037] (1) Preparation of carboxylated polypropylene: fully mix 20g of polypropylene powder and 5g of nitric acid with a mass fraction of 70%, and then heat to 130°C for heat preservation and stirring reaction. After the reaction, the resulting mixture is naturally cooled to room temperature, and washed to remove nitric acid, and finally vacuum-dried and pulverized into powder to obtain carboxylated polypropylene;

[0038] (2) Antibacterial modification of polypropylene: Dissolve 8g of chitosan hydrochloride in water, then add 50g of the prepared carboxylated polypropylene, stir well, and add dilute sulfuric acid dropwise to adjust the pH value to 5, then heat to reflux state Insulate and stir the reaction. After the reaction, cool the resulting mixture to room temperature naturally, then add dropwise sodium carbonate solution to adjust the pH value to 7, filter, wash with water to remove salt, and finally vacuum-dry and pulverize to make granules to obtain modified chitosan. ...

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Abstract

The invention discloses a processing technology of a high-performance antibacterial polypropylene spun-bonded non-woven fabric, and relates to the technical field of non-woven fabric processing. The technology comprises the following steps of (1) carboxylated polypropylene preparation, (2) antibacterial modification of polypropylene, (3) fiber web processing and (4) non-woven fabric molding. The prepared polypropylene spun-bonded non-woven fabric has a remarkable antibacterial property, the antibacterial property is stable, and the antibacterial aging is long; the prepared polypropylene spun-bonded non-woven fabric has high mechanical strength, good air permeability, is non-toxic and harmless to the human body, and is suitable for processing medical and health products such as surgical clothes and caps, bed sheets, urinal pads, insulating clothing, visiting clothes and the like.

Description

Technical field: [0001] The invention relates to the technical field of non-woven fabric processing, in particular to a processing technology of high-performance antibacterial polypropylene spun-bonded non-woven fabric. Background technique: [0002] Polypropylene spunbonded non-woven fabric is a kind of non-woven fabric, which is made of polypropylene as raw material, polymerized into a net through high-temperature drawing, and then bonded into a cloth by hot rolling. Due to the simple process, large output, and non-toxic and harmless to the human body, it is widely used in various fields such as sanitary materials. [0003] Since polypropylene spunbonded non-woven fabrics are mostly used in the processing of sanitary materials, in order to improve the safety of sanitary materials, polypropylene spunbonded non-woven fabrics are required to have antibacterial properties. However, polypropylene, the processing material of polypropylene spunbonded nonwoven fabric, does not ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/007D04H3/14D04H3/16D01F1/10D06M11/44D06M13/00D06M101/20
CPCD01F1/103D04H3/007D04H3/14D04H3/16D06M11/44D06M13/00D06M16/00D06M2101/20
Inventor 关义臣关建李鹏卢辉辉刘晨阳
Owner 界首市圣通无纺布有限公司
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