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Antibiotic medical use shielding respirator and its preparation

A mask and hygienic mask technology, which is applied to protective devices against harmful chemical agents, life-saving equipment, respiratory protection devices, etc., can solve the problems of high cost, troublesome production, difficult to wash, etc., to reduce the size, improve the barrier rate, The effect of good breathability

Inactive Publication Date: 2004-12-29
SICHUAN UNIV
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of mask has to use soft metal sheets to ensure its comfort due to the use of particle interlayers, so it is troublesome to make, high in cost, and difficult to wash

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] (1) Take amorphous titanium dioxide below 50nm prepared by precipitation method or sol method, and calcinate it at 600-800°C for 1-2 hours to obtain mixed crystal nano-titanium dioxide; (2) Mix 0.5-30 parts of particle size Mixed crystal nano-titanium dioxide less than 50nm (85% to 98% of anatase titanium dioxide and 2% to 15% of rutile titanium dioxide), 0.5 to 10 parts of nano ZnO, 0.5 to 5 parts of dispersant, 0.5 to 15 parts of bonding agent After high-speed stirring with 40-90 parts of distilled water, a uniformly dispersed sol or suspension is obtained; (3) Take a common sanitary mask, put it into a vacuum filter one by one, spread it flat, and use a brush and soft hair to coat the sol Brush on the mask, and carry out vacuum filtration at the same time; (4) obtain the antibacterial medical protective mask after drying the mask evenly after brushing.

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Abstract

The antiseptic medical breathing mask is produced through mixing mixed crystalline titania below 50 nm, nano zinc oxide, dispersant, adhesive and water to form solution or emulsion; and painting the solution or emulsion to the outer layer of breathing mask. It has good ventilation, and bactericidal and bacteriostasis functions, and may be used by doctor, patient and other people.

Description

1. Technical field [0001] This patent is a novel and highly efficient method for preparing an antibacterial medical protective mask. It belongs to the field of public health and daily life. 2. Background technology [0002] The outbreak of "SARS" in the spring and summer of this year has greatly impacted the safety of human life and the economic development of society. Due to the suddenness and infectivity of this type of disease, people are often hard to guard against. In particular, the high infection rate of "SARS" among medical staff has caused panic in people's hearts. [0003] At present, the protective measures for medical staff in the infectious ward are mainly carried out by wearing protective clothing and protective masks, but the gauze masks widely used at present can only play a simple role of adsorption and barrier; while the barrier of rubber and polymer protective equipment Although the effect is good, it is not breathable, especially it cannot be used in t...

Claims

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Application Information

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IPC IPC(8): A62B9/06A62B29/00
Inventor 张云尹光福周大利
Owner SICHUAN UNIV
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