Differences In Fabrics Of Medical Protective Clothing At Home And Abroad

As a type of anti-chemical clothing, medical protective clothing is mainly used for medical workers to wear, which can effectively block microorganism, block body fluid penetration and prevent disease infection. The GB19082-2009 "Technical Requirements for Medical Disposable Protective Clothing" issued by China puts forward more detailed technical requirements for medical protective clothing, which stipulates that medical protective clothing should be in flame retardant performance, water dip grade, charge density, fracture elongation and water resistance and other indicators.

Medical workers in protective clothing and goggles are monitoring patients

Throughout all the current fiber fabrics, it is difficult to meet the standard requirements of waterproof, liquid barrier, so it is inevitable to composite lamination of the fabric, or coating finishing, in order to improve its particle barrier performance. Medical protective clothing is the most critical personal protective equipment for medical staff. High-quality medical protective clothing can greatly improve the protective safety performance of medical staff, and play an effective protective role against some highly infectious bacteria and viruses, so as to minimize the harm.

There are many systematic researches on medical protective fabrics and clothing in foreign countries. At present, most of the materials are made of PTFE, and corresponding standards have been developed according to different needs. Polytetrafluoroethylene (PTFE) is a high performance polymer, with high water pressure resistance, while the micropores can be smooth exhaust sweat steam. PTFE film with appropriate pore size can block bacteria and viruses. It has excellent strength, stable properties, good biological compatibility, good thermal stability, easy to shape.

At the same time, in foreign countries, due to different medical needs, there are many studies on medical personnel protective clothing, and the standard is strict. At the same time, the medical protective equipment is complete, so there is a large choice.

Compared with foreign medical protective clothing (such as DuPont medical protective clothing, Lakeland medical protective clothing), China's medical protective clothing fabrics, clothing still have a certain gap. From the application of the material can be roughly divided into coating material, PU | TPU film composite material and composite material of PTFE microporous membrane three types:

1. Coating materials. Most domestic enterprises use wet or dry process of polyurethane, polyacrylate, polyvinylidene fluoride on the fabric coating finishing, and then the fabric is used to make protective clothing.

2.PU and TPU film composites. This kind of composite material has some improvement in moisture permeability and comfort compared with coating material.

3.PTFE microporous membrane composites. The domestic army has a small batch of application in the special military uniforms and equipment, and the application in the medical protective clothing is still in the research and trial stage. PTFE microporous film can effectively solve the two shortcomings of coating materials, PU and TPU membrane composites, such as poor durability and poor moisture permeability. The disadvantage of PTFE is the high cost.

After several years of research, Qingdao namely hair group in the PTFE film technology has a new breakthrough, become one of the few in the world can produce PTFE film enterprises. At present, Jifa Group annual production line of 1.5 million meters, after nearly one year of experiment, has entered the final trial production stage.

The fabric and protective performance of medical protective clothing not only reflect the technical level of a country, reflect the strength of the country's comprehensive national strength, but also related to the health and safety of the majority of medical workers and people. For example, in the spring and summer of 2003, the SARS virus broke out in China and all over the world, threatening the lives of thousands of people. Many medical workers were infected or even killed. This is related to the backward protection conditions in our country.

Through the application and development of PTFE membrane, the new material at the forefront of science and technology is applied to protective fabrics, and the development of high-performance medical protective clothing, improving the medical protection conditions in China and replacing imports will be of great significance for improving the overall level of China's industrial textiles.