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Method for preparing medical antibacterial cotton gauze

The technology of antibacterial cotton and cotton gauze is applied in the field of preparation of medical antibacterial cotton gauze, which can solve the problems of poor microorganism resistance, poor antibacterial effect, and need to improve water absorption performance, and achieve the effect of improving water absorption performance and good antibacterial effect.

Inactive Publication Date: 2016-06-15
JIANGSU TIANZHANG HEALTH & MEDICAL NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the currently used medical cotton gauze has poor microbial resistance, poor antibacterial effect, and water absorption performance needs to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of medical antibacterial cotton gauze, comprising the following steps:

[0023] (1) Expanding pretreatment of cotton gauze: using sodium hydroxide solution as a swelling agent, performing expansion pretreatment at a temperature of 20°C, the mass percentage concentration of sodium hydroxide solution is 15%, and the treatment time is 8 minutes;

[0024] (2) Carboxymethylation modification treatment of the pretreated cotton gauze: Carboxymethylation modification treatment with sodium hydroxide and chloroacetic acid, the treatment time is 40 minutes, and the molar ratio of sodium hydroxide and chloroacetic acid is 2 : 1, the mass percent concentration of sodium hydroxide solution is 25%, and the mass ratio of chloroacetic acid and cotton gauze is 1.6:1;

[0025] (3) Washing: wash with water for several times at a temperature of 35°C, so that the cotton gauze does not contain acid or alkali;

[0026] (4) Antibacterial treatment: Put the washed cotton ga...

Embodiment 2

[0030] A preparation method of medical antibacterial cotton gauze, comprising the following steps:

[0031] (1) Expanding pretreatment of cotton gauze: using sodium hydroxide solution as a swelling agent, performing expansion pretreatment at a temperature of 25°C, the mass percentage concentration of sodium hydroxide solution is 10%, and the treatment time is 10 minutes;

[0032] (2) Carboxymethylation modification treatment of the pretreated cotton gauze: Carboxymethylation modification treatment with sodium hydroxide and chloroacetic acid, the treatment time is 30 minutes, and the molar ratio of sodium hydroxide to chloroacetic acid is 2.5 : 1, the mass percent concentration of sodium hydroxide solution is 20%, and the mass ratio of chloroacetic acid and cotton gauze is 1.8:1;

[0033] (3) Washing: Washing with water several times at a temperature of 40°C, so that the cotton gauze does not contain acid or alkali;

[0034] (4) Antibacterial treatment: Put the washed cotton g...

Embodiment 3

[0038] A preparation method of medical antibacterial cotton gauze, comprising the following steps:

[0039] (1) Expanding pretreatment of cotton gauze: using sodium hydroxide solution as a swelling agent, performing expansion pretreatment at a temperature of 23°C, the mass percentage concentration of sodium hydroxide solution is 12%, and the treatment time is 12 minutes;

[0040] (2) Carboxymethylation modification treatment of the pretreated cotton gauze: Carboxymethylation modification treatment with sodium hydroxide and chloroacetic acid, the treatment time is 35 minutes, and the molar ratio of sodium hydroxide and chloroacetic acid is 2.2 : 1, the mass percent concentration of sodium hydroxide solution is 23%, and the mass ratio of chloroacetic acid and cotton gauze is 1.7:1;

[0041] (3) Washing: Washing with water several times at a temperature of 45°C, so that the cotton gauze does not contain acid or alkali;

[0042] (4) Antibacterial treatment: put the washed cotton ...

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Abstract

The invention discloses a method for preparing medical antibacterial cotton gauze. The method comprises the following steps of: carrying out extrusion pretreatment on cotton gauze; carrying out carboxymethylation modification treatment on the cotton gauze after pretreatment; carrying out water washing comprising the step of washing with water for a plurality of times; carrying out antibacterial treatment comprising the steps of putting the cotton gauze after water washing into water with the bath ratio of 1:25, adding a compound antibacterial agent with the amount 5-8% of the cotton gauze weight and then increasing the temperature to about 40-48 DEG C, wherein the treating time is 2.5-3 h, and the compound antibacterial agent comprises nano titanium dioxide, modified chitosan, armoise oil and a tea leaf extract; carrying out water squeezing comprising the steps of squeezing water of the cotton gauze after antibacterial treatment to make the water content of the cotton gauze be 10-20% of the weight; and drying comprising the steps of putting the cotton gauze after water squeezing into a vacuum drying box and drying. The water absorbing property of the cotton gauze is improved, and moreover, the cotton gauze has a good antibacterial effect.

Description

technical field [0001] The invention relates to the field of medical cotton gauze, in particular to a preparation method of medical antibacterial cotton gauze. Background technique [0002] As a natural cellulose fiber, cotton products are not only loved by people for their excellent wearability, but also for their excellent affinity with the human body, making them one of the widely used medical substrates. Medical cotton gauze is a product widely used at home and abroad. It is used for cleaning skin or wounds, absorbing body exudate during surgery, used together with commonly used drugs for wound care, and supporting organs and tissues during surgery. Medical cotton gauze produced by domestic enterprises Cloth has been widely used clinically, with obvious social and economic benefits. [0003] However, the currently used medical cotton gauze has poor microbial resistance, poor antibacterial effect, and water absorption performance needs to be improved. Contents of the i...

Claims

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Application Information

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IPC IPC(8): D06M13/21D06M11/38D06M11/46D06M15/03D06M15/17D06M13/00A61L15/28A61L15/18A61L15/44D06M101/06
CPCD06M13/21A61L15/18A61L15/28A61L15/44A61L15/46A61L2300/102A61L2300/232A61L2300/404C08L1/02D06M11/38D06M11/46D06M13/00D06M15/03D06M15/17D06M16/00D06M2101/06C08L5/08
Inventor 陈章华
Owner JIANGSU TIANZHANG HEALTH & MEDICAL NEW MATERIALS CO LTD
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