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Medical antibacterial cotton gauze and preparation method thereof

The technology of antibacterial cotton and gauze is applied in the field of medical and sanitary materials, which can solve the problems of increasing environmental pollution, increasing the preparation cost, etc., and achieve the effects of improving antibacterial performance, improving surface activity and adsorption performance, and adapting to a wide range of pH.

Pending Publication Date: 2022-07-26
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this modification method needs to use high-concentration caustic soda, and needs to be washed with a large amount of water after modification, which increases environmental pollution and increases the preparation cost

Method used

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  • Medical antibacterial cotton gauze and preparation method thereof
  • Medical antibacterial cotton gauze and preparation method thereof

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Effect test

preparation example Construction

[0023] The invention provides a preparation method of medical antibacterial cotton gauze, comprising the following steps:

[0024] The modified liquid is sprayed on the absorbent cotton gauze and heated to obtain the modified absorbent cotton gauze;

[0025] The modified absorbent cotton gauze is steam-treated and then immersed in an antibacterial solution for freeze-drying treatment to obtain a medical antibacterial cotton gauze.

[0026] In the present invention, the modified liquid is composed of raw materials containing the following percentages: 5-10% of sophorolipids, 3-5% of mannose erythritol lipids, 5-10% of alkyl phosphates, and the rest is water; preferably, the modified liquid contains: 8% sophorolipid, 4% mannose erythritol lipid, 7% alkyl phosphate, and the rest is water.

[0027] In the present invention, the alkyl phosphate is preferably cetyl phosphate and / or octadecyl phosphate.

[0028] In the present invention, the amount of the modified liquid sprayed is...

Embodiment 1

[0038] Spray the modified liquid evenly on the absorbent cotton gauze with a spray volume of 26mL / cm 2 , the cotton gauze sprayed with the modified liquid was placed in a drying oven at 55 °C for 0.5 h of heat treatment, and the obtained modified absorbent cotton gauze was cleaned 3 times in ultrasonic waves, each cleaning for 5 min;

[0039] The cleaned modified absorbent cotton yarn was placed in a steam box, treated at 100°C for 5 minutes, taken out and quickly immersed in the antibacterial solution, taken out after being completely immersed and lowered to room temperature, and placed in a freeze dryer at -40°C, The medical antibacterial cotton gauze was obtained by rapid freeze-drying at 15Pa.

[0040] Among them, the components of the modified liquid are: sophorolipid 5%, mannose erythritol lipid 5%, cetyl phosphate 8%, and the rest is water; the composition of the antibacterial liquid is: polyhexamethylene biguanide Hydrochloride 0.1%, ozonated oil 0.2%, lysostaphin 0.1...

Embodiment 2

[0042] Spray the modified liquid evenly on the absorbent cotton gauze with a spray volume of 30mL / cm 2 , the cotton gauze sprayed with the modified liquid was placed in a drying oven at 50°C for 0.2 h heat treatment, and the obtained modified absorbent cotton gauze was cleaned twice in ultrasonic waves for 10 min each time;

[0043]The cleaned modified absorbent cotton yarn was placed in a steam box, treated at 105°C for 5 minutes, taken out and quickly immersed in the antibacterial solution, taken out after being completely immersed and lowered to room temperature, and placed in a freeze dryer at -40°C, The medical antibacterial cotton gauze was obtained by rapid freeze-drying at 20Pa.

[0044] Among them, the components of the modified liquid are: 10% sophorolipid, 3% mannose erythritol lipid, 5% octadecyl phosphate, and the rest is water; the composition of the antibacterial liquid is: polyhexamethylene biguanide Hydrochloride 0.5%, ozonated oil 0.3%, lysostaphin 0.5%, acy...

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Abstract

The invention provides medical antibacterial cotton gauze and a preparation method thereof, and belongs to the technical field of medical and health materials. The medical antibacterial cotton gauze is obtained by performing alkylation modification treatment, steam treatment and antibacterial liquid dipping treatment on absorbent cotton. The preparation method is simple and easy to implement, after alkylation modification treatment is carried out on the degreasing cotton gauze, the surface of the degreasing cotton gauze has more water absorption groups, the adsorption effect is better, and the antibacterial effect of the obtained antibacterial cotton gauze is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of medical and health materials, in particular to a medical antibacterial cotton gauze and a preparation method thereof. Background technique [0002] Among the natural fiber raw materials commonly used in disposable sanitary textiles, cotton fiber is the most widely used. Cotton fiber is a soft, comfortable, hygroscopic, high-strength, skin-friendly and warm, biodegradable material. Disposable sanitary textiles made of cotton fiber are layers of cellulose, breathable and porous materials, which are suitable for bacteria, fungi and other microorganisms to multiply and grow wantonly. The use of sanitary textiles with antibacterial function can not only inhibit the growth and reproduction of microbial cells in the wearing and storage of textiles, but also avoid cross-infection of microbial cells in the environment and endanger human health. Use time of sexual hygiene textiles. Medical cotton gauze is a wide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/228D06M13/224D06M13/292D06M15/37D06M16/00D06M13/46D06C7/00D06B23/20D06B3/10D06B21/00A61L15/20A61L15/26A61L15/18A61L15/32A61L15/46D06M101/06
CPCD06M13/228D06M13/2246D06M13/224D06M13/292D06M15/37D06M16/003D06M13/46D06C7/00D06B23/20D06B3/10D06B21/00A61L15/20A61L15/26A61L15/18A61L15/32A61L15/46D06M2101/06A61L2300/404A61L2300/206A61L2300/10A61L2300/254A61L2300/208A61L2300/412C08L79/00Y02A50/30
Inventor 关国平唐锐王璐周恒阳
Owner DONGHUA UNIV
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