Method for ventilation and antibiotic finishing of viscose non-woven cloth for medical treatment and public health

A non-woven fabric, antibacterial finishing technology, applied in biochemical fiber treatment, textile and papermaking, fiber treatment, etc., can solve the problems of elemental silver lack of reactive groups, sensitivity to light, difficult to fix, etc., and achieve good space physical adsorption. Features, large liquid absorption, and the effect of improving breaking strength

Inactive Publication Date: 2018-12-07
安徽利通达纤维新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silver-based antibacterial agents have the advantages of persistence, broad-spectrum, safety, high efficiency, and resistance to drug resistance. However, elemental silver lacks reactive groups and is difficult to fix on textiles. It is also sensitive to light and easy to absorb. A "color change" reaction occurs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for air-permeable and antibacterial finishing viscose nonwovens for medical hygiene, characterized in that it comprises the following steps:

[0021] (1) One-bath water-based carboxymethylation modification treatment of viscose nonwovens:

[0022] Soak 60 cloth samples in caustic soda solution for 5 minutes, add 310 parts of chloroacetic acid, etherify at 70-73°C for 2 hours, neutralize with ethanol solution of acetic acid, wash with ethanol-water mixed solution, and dry;

[0023] (2) Preparation of β-cyclodextrin-nanosilver:

[0024] Add silver nitrate solution to the same volume of protective agent β-cyclodextrin solution and stir for 1 hour, dropwise add the same volume of reducing agent sodium borohydride solution, and react with magnetic stirring at 5-6°C for 10 hours to prepare β-cyclodextrin -Nano silver aqueous solution;

[0025] (3) Antibacterial finishing of viscose nonwovens by one-bath method:

[0026] Add the cross-linking agent butane tetracarb...

Embodiment 2

[0031] A method for air-permeable and antibacterial finishing viscose nonwovens for medical hygiene, characterized in that it comprises the following steps:

[0032] (1) One-bath water-based carboxymethylation modification treatment of viscose nonwovens:

[0033] Soak 70 parts of cloth samples in caustic soda solution for 7 minutes, add 320 parts of chloroacetic acid, etherify at 70-73°C for 3 hours, neutralize with ethanol solution of acetic acid, wash with ethanol-water mixed solution, and dry;

[0034] (2) Preparation of β-cyclodextrin-nanosilver:

[0035] Add silver nitrate solution to the same volume of protective agent β-cyclodextrin solution and stir for 2 hours, dropwise add the same volume of reducing agent sodium borohydride solution, and magnetically stir the reaction at 5-6°C for 12 hours to prepare β-cyclodextrin -Nano silver aqueous solution;

[0036] (3) Antibacterial finishing of viscose nonwovens by one-bath method:

[0037] Add the crosslinking agent butan...

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Abstract

The invention discloses a method for ventilation and antibiotic finishing of viscose non-woven cloth for medical treatment and public health. The method comprises the following steps: dipping a clothsample into a sodium hydroxide solution, adding chloroacetic acid for generating etherification reaction, neutralizing by virtue of an ethanol solution of acetic acid, washing with an ethanol-water mixed solution, and drying; adding a silver nitrate into a protecting agent, namely a beta-cyclodextrin solution in the same volume, dropwise adding a reducing agent, namely a sodium borohydride solution, and magnetically stirring for reaction, so as to obtain a beta-cyclodextrin-nano-silver water solution; adding a cross-linking agent, namely butane tetracarboxylic acid into the obtained beta-cyclodextrin-nano-silver water solution, and uniformly stirring and mixing, so as to obtain antibiotic finishing liquid; and carrying out carboxymethylation on viscose non-woven cloth, dipping the viscosenon-woven cloth into the antibiotic finishing liquid, carrying out pre-baking and baking, washing with hot water, washing with cold water, and finally, drying.

Description

technical field [0001] The invention belongs to the field of nonwoven fabric materials, and in particular relates to a method for finishing viscose nonwoven fabric with air permeability and antibacterial for medical and sanitary use. Background technique [0002] In recent years, the research and application of highly adsorbent materials in medical health and surgical operations have progressed rapidly. Surface treatment of natural or regenerated cellulose fibers and fabrics to improve their adsorption properties has become a research hotspot in the field of high-performance medical dressings. The low-degree etherification treatment of cellulose textiles makes the skin layer of the fiber form a network structure with hydrophilic carboxymethyl groups, while the core layer of the fiber maintains the original natural structure, making it a fiber that maintains It is an absorbent material with excellent shape and mechanical strength, and high liquid absorption and retention cap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M15/03D06M13/192D06M101/06
CPCD06M11/83D06M13/192D06M15/03D06M16/00D06M2101/06
Inventor 范福中
Owner 安徽利通达纤维新材料有限公司
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