The Material And Molding Of Medical Isolation Gown

November 13 00:36 2020
The outbreak of the epidemic has caused insufficient medical equipment, and doctors have used polypropylene raincoats. Are these yellow, white, blue, and dark blue protective clothing, isolation gowns, and surgical gowns have corresponding standards? Is it the same? Below it try to discuss these medical supplies from the perspective of polymer materials.

Any piece of isolation clothing, after the SMS spunbond fabric and meltblown fabric are compounded, is not to be made into clothing immediately, but to be post-processed to meet the requirements of the three antibodies: water resistance, alcohol resistance, and blood resistance. The treatment liquid is generally a fluorine-based material.

After the treatment is completed, clothes are made, and then sterilized. Common medical disinfection includes high-temperature steam sterilization, capillary sterilization and radiation sterilization. The best effect should be radiation sterilization.

What needs to be said here is that radiation sterilization is very good. The bacteria must be eliminated. By the way, the polypropylene is also eliminated. That is, the performance of the non-woven fabric is attenuated at the same time after radiation. If the epidemic has not occurred, this will happen in a few years. The surgical gown is probably crushed and degraded.

In addition to the difference in color, the barrier requirements are definitely different. According to the AAMI definition, isolation gown is a type of protective clothing. In the case of patient isolation, it can protect medical staff and patients from suffering Protective Apparel is designed and made to isolate all or part of the body from potential hazards, or to isolate the external environment from infection by the wearer.

Spray test: to see how much water will penetrate after the non-woven fabric is sprayed with water. According to the standard placing method of the sample, spray deionized water on the surface of the fabric to test the weight of deionized water absorbed by the filter paper under the fabric through the fabric.

Hydrostatic pressure test: It means that water droplets will appear under the pressure of the non-woven fabric. The test is based on a test area of ​​100 square centimeters, applying a pressure of 60 mbar / min to test the product’s ability to block water.

Non-woven fabric is composed of two kinds of polypropylene fibers. The fibers may always leak. If it put the film in, the problem of permeability is completely solved. Therefore, in the highly demanding AAMI Level 4 protective clothing, it will Adopt a certain degree of air permeability, hydrophilic and moisture-permeable membrane.

Therefore, the raincoat mentioned above is actually very resistant to permeation and can fully meet the requirements. Another advantage of the raincoat is that there is no problem of fluffing, because bacteria are easily caused by such fluff, so the fluffing is also a test requirement for medical non-woven fabrics. Of course, the shortcomings of raincoats are breathability, and moisture permeability is a bit worse.

At this stage, are these medical non-woven protective clothing made of polypropylene plastic more beautiful than the models on the runway?

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Company Name: Hangzhou Tangji Medical Technology Co., Ltd.
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Phone: 0086-571-87388030
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City: Hangzhou
Country: China
Website: https://www.tangjihz.com/

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