Antibacterial gauze mask filter and preparation method thereof, and antibacterial gauze mask

A filter and mask technology, applied in the field of medical materials, can solve the problems of small pore size and high porosity, and achieve the effects of high porosity, easy access and simple structure

Active Publication Date: 2014-10-08
上海展恒环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these patents are mainly laboratory research results, which are still far away from the scale of industrial production. The main technical bottleneck is the large-scale production of electrospinning
Electrospinning is a weaving technology completely different from traditional textile technology. The fiber filter membrane prepared by it has the characteristics of fine fiber, small pore size and high porosity. However, electrospinning technology can be used for mass production of nanofiber filter materials. And the technology of industrial application is still rare in the world

Method used

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  • Antibacterial gauze mask filter and preparation method thereof, and antibacterial gauze mask
  • Antibacterial gauze mask filter and preparation method thereof, and antibacterial gauze mask
  • Antibacterial gauze mask filter and preparation method thereof, and antibacterial gauze mask

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preparation example Construction

[0043] In addition, the present invention also provides a method for preparing an antibacterial mask filter, which includes the following steps: sequentially stitch or stitch the fiber surface layer 110, the base non-woven fabric layer 120, the electrospun fiber membrane layer 130, and the fiber inner layer 140. Compression connection, wherein the electrospun fiber membrane layer is made of polymer material and chitosan through electrostatic blending or blending to form a mixed solution, and electrostatic spinning.

[0044] See figure 2 , Is a flow chart of the steps for preparing an electrospun fiber membrane layer provided by an embodiment of the present invention, including the following steps:

[0045] Step S210: Dissolve polymer powder in a polar organic solvent to obtain a first polymer solution, wherein the polymer powder is polyethersulfone, polysulfone, polyvinyl alcohol, polyethylene oxide, polylactic acid, polypropylene At least one of nitrile, polyurethane, polyvinylid...

Embodiment 1

[0072] Set the size of the mask filter element to be 110cm long and 75cm wide.

[0073] Among them, the first layer uses spunlace non-woven fabric on the top as the outer fiber layer, the second layer uses meltblown non-woven fabric as the collection matrix, and the fourth layer uses needle punched non-woven fabric as the fiber inner layer; The weight of the spunlace non-woven fabric, the second layer of meltblown non-woven fabric and the fourth layer of needle punched non-woven fabric is 15g / m 2 .

[0074] The filter sterilization layer of the third layer is prepared by the following method:

[0075] The film-forming polysulfone powder was dissolved in N-methylpyrrolidone, stirred at 60°C to obtain a polymer solution, and the polysulfone solution was vacuum degassed at 60°C for 4 hours to prepare a spinning solution. The concentration of polysulfone in the spinning solution is 10 wt%, and the rest is N-methylpyrrolidone.

[0076] The chitosan was dissolved in a 90wt% acetic acid sol...

Embodiment 2

[0082] Set the size of the mask filter element to be 125cm long and 80cm wide.

[0083] The first layer uses spunlace non-woven fabric on the top as the outer fiber layer, the second layer uses spunbonded non-woven fabric as the collection matrix, and the fourth layer uses bamboo charcoal fiber non-woven fabric as the fiber inner layer; the first layer of spunlace The weight of the non-woven fabric, the second layer of meltblown non-woven fabric and the fourth layer of needle punched non-woven fabric are all 25g / m 2 .

[0084] The filter sterilization layer of the third layer is prepared by the following method:

[0085] A certain amount of chitosan powder was dissolved in 2wt% acetic acid aqueous solution, and 5wt% sodium lauryl sulfate aqueous solution was poured into the chitosan solution, because the amine groups on the chitosan and lauryl sulfate The sulfate radical on the sodium can make the chitosan precipitate out, which is washed and dried for later use.

[0086] The dried c...

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Abstract

The invention provides an antibacterial gauze mask filter. The antibacterial gauze mask filter comprises a fiber surface layer, a base material non-woven fabric layer, an electrostatic spinning fiber membrane layer and a fiber lining which are sequentially connected, wherein the electrostatic spinning fiber membrane layer consists of polymer material and chitosan. With the adoption of small pore diameter and high porosity of the electrostatic spinning fiber membrane, the antibacterial gauze mask filter can effectively prevent PM2.5 from entering the body; meanwhile, due to the chitosan in the electrostatic spinning fiber membrane layer, the antibacterial gauze mask filter has bacteria resistance and bacteriostasis. In addition, the invention also provides a preparation method of the antibacterial gauze mask filter and an antibacterial gauze mask.

Description

【Technical Field】 [0001] The invention relates to the technical field of medical materials, in particular to an antibacterial mask filter and a preparation method thereof and an antibacterial mask. 【Background technique】 [0002] At present, China's air pollution situation is severe. According to the Urban Air Quality Daily published by the Ministry of Environmental Protection in January this year, the top 10 cities with the highest API (Air Pollution Index) pollution index are: Shijiazhuang, Handan, Baoding, Tangshan, Tianjin, Zhengzhou, Jinan, Qinhuangdao, Jining, Urumqi and Wuhan (Tie). This ranking does not include PM2.5 and ozone pollution index. Among them, the air quality in Beijing, Hebei, Shandong and other places is seriously polluted, and the PM2.5 index is close to the maximum. For example, the air quality index of Shijiazhuang, Handan, Xingtai, and Hengshui even "explosive", the value has reached or exceeded the upper limit of 500. , The primary pollutants are mos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B32B5/26B32B9/04B32B33/00A41D13/11
Inventor 张秀芳方渡飞马洪洋李虎敏赵铭
Owner 上海展恒环保科技有限公司
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