What material is the medical protective clothing made of?

What material is the medical protective clothing made of?

The function of medical protective clothing is to produce bacterial barrier layer to prevent bacterial migration and reduce cross infection. In recent years, some scientific research institutions and enterprises have developed a lot of medical protective clothing, most of which are made of nonwovens. According to the fabric structure, medical protective clothing can be divided into woven, nonwoven and composite materials; according to the service life, it can be divided into disposable type (use), limited time type and reusable type; according to the processing composite technology, there are three kinds of methods: finishing, coating and film covering.

Protective clothing has different properties because of the different raw materials used. At present, the nonwoven materials used in several kinds of medical protective clothing that are being sold and developed in the domestic market mainly include the following.

Polypropylene spunbonded fabric

Polypropylene spunbonded fabric can be made into antibacterial protective clothing and antistatic protective clothing by antibacterial and antistatic treatment. Compared with the traditional cotton protective clothing, polypropylene spunbonded protective clothing is undoubtedly a great progress. Because of its low price and use, it can greatly reduce the cross infection rate. It has been widely used in foreign countries for a long time. However, the anti hydrostatic pressure of the material is relatively low, and the blocking efficiency to virus particles is relatively poor, so it can only be used as general protective articles such as aseptic surgical clothing and disinfection cloth.

Spunlaced fabric composed of polyester fiber and wood pulp

Medical protective clothing

The material is soft and close to the traditional textile. It can be treated by three anti-oxidation (anti alcohol, anti-blood, anti-oil) and anti-static and anti-bacterial treatment. It can be disinfected by gamma ray. It is a good material for medical protective clothing. However, it is not an ideal protective clothing material because of its relatively low hydrostatic pressure resistance and poor isolation efficiency to virus particles.

Polypropylene spunbonded melt blown spunbonded composite nonwovens, namely SMS or SMMs

The characteristics of meltblown cloth are fine fiber diameter, large specific surface area, fluffy, soft, good drapability, low filtration resistance, high filtration efficiency, strong hydrostatic pressure resistance, but low strength and poor wear resistance, which limits the development of its application field to a certain extent. The spunbonded fabric has a higher linear density and the web is composed of continuous filaments. The breaking strength and elongation of spunbonded fabric are much larger than that of melt blown fabric, which can make up for the deficiency of melt blown fabric. This material has the following excellent characteristics:

① Uniform and beautiful appearance;

② High resistance to hydrostatic pressure;

③ Soft feel;

④ Good air permeability;

⑤ Good filtration effect;

⑥ Strong acid and alkali resistance.

In addition, it can also carry out three anti - SMS (anti alcohol, anti - blood, anti - oil) and antistatic, antibacterial, anti aging and other treatment to meet the different needs of the nonwovens.

Polymer coated fabric

There are many kinds of coatings for protective fabrics, such as polyvinyl chloride, polyethylene, polychloroprene rubber and other kinds of synthetic rubber. This kind of protective clothing is very good in water resistance and bacterial particle isolation. It can be reused, but its moisture permeability is poor, a lot of sweat can not be discharged from the human body, and the wearing comfort is poor. The protective clothing made of rubber coated fabric in SARS period is really not suitable It has been done. The new development at home and abroad is to use microporous polytetrafluoroethylene film and fabric to obtain waterproof and breathable function, but it is expensive as a product.

Polyethylene breathable film / nonwovens composite fabric

According to the different requirements of protection grade, the nonwovens and films used are also different. Polyethylene breathable membrane / nonwovens composite material has good effect on blocking bacterial particle penetration and liquid penetration, and the handle can be adjusted by changing the softness of the composite fabric. It has strong tensile strength, good air permeability, greatly improved comfort, can withstand disinfection treatment, does not contain toxic components, weighs 60 ~ 100g / M2, has good cost performance, and is made of medical anti-corrosion Protective clothing can protect medical staff from pollution sources, overcome cross infection and play an effective role in protection.