Medical protective clothing refers to the protective clothing used by medical personnel (doctors, nurses, public health personnel, cleaning staff, etc.) and personnel entering specific medical and health areas (such as patients, hospital visitors, personnel entering infected areas, etc.) ). The role of medical protective clothing is to isolate bacteria, harmful ultra-fine dust, acid and alkali solutions, electromagnetic radiation, etc. to ensure personnel safety and keep the environment clean.

The nonwoven materials used in several medical protective clothing currently sold and developed on the domestic market include the following materials.

Polypropylene spunbond
Polypropylene spunbond can be antibacterial and antistatic processed into antibacterial protective clothing and antistatic protective clothing. Compared with traditional cotton protective clothing, polypropylene spunbond protective clothing is undoubtedly a big improvement. Because of its low price and one-time use, it can greatly reduce the rate of cross infection, and has been promoted abroad for a long time. However, the material's resistance to hydrostatic pressure is relatively low, and its blocking efficiency against viral particles is poor. It can only be used as ordinary protective equipment, such as sterile surgical gowns and sterile packaging.

Polyester and wood pulp spunlace
The material is soft to the touch, close to traditional textiles, can be treated with tertiary antibodies (anti-alcohol, anti-blood, anti-grease), anti-static, anti-bacterial, etc., and can be sterilized with gamma rays. It is a good material for medical protective clothing. However, its hydrostatic pressure is low and its blocking efficiency against virus particles is poor, so it is not an ideal protective clothing material.

Polypropylene spunbond meltblown spunbond nonwoven, SMS or SMMS

Meltblown cloth is characterized by thin fiber diameter, large specific surface area, fluffy, soft, good drape, low filtration resistance, high filtration efficiency, strong hydraulic pressure resistance, but low strength and poor abrasion resistance, to a large extent restricted. . Application areas. Spunbond fibers have a high linear density and the web consists of continuous filaments. The breaking strength and elongation of spunbond fabrics are much greater than the breaking strength and elongation of meltblown fabrics, which can make up for the shortcomings of meltblown fabrics.

The material has the following outstanding characteristics:
① beautiful;
② High resistance to hydrostatic pressure;
③ soft to the touch;
④Good breathability;
⑤ Good filtering effect;
⑥ Resistant to strong acids and alkalis.

In addition, SMS nonwovens can also be treated with tertiary antibodies (anti-alcohol, anti-blood, anti-grease) and antistatic, antibacterial, anti-aging, etc. to meet the needs of different uses.

Polymer coated fabric
There are many types of protective fabric coatings, including polyvinyl chloride, polyethylene, polychloroprene rubber, and various other synthetic rubbers. This protective clothing has good water resistance and barrier properties against bacterial particles. It can be reused, but it has poor moisture permeability, cannot emit a lot of sweat, and is uncomfortable to wear. During SARS, protective clothing made of rubber-coated fabric was a last resort. The latest development at home and abroad is the use of microporous PTFE membranes and fabrics to obtain waterproof and breathable functions, but disposable products are expensive.

Polyethylene breathable film / non-woven fabric
According to the different requirements of the protection level, the non-woven fabrics and films used are also different. Polyethylene breathable film / non-woven composite material has excellent effects in preventing bacterial particle penetration and liquid penetration, and can adjust the feel by changing the softness of the composite fabric. It has strong tensile strength, good breathability and comfort. It has been greatly improved, can withstand sterilization, does not contain toxic ingredients, and weighs 60 ~ 100g / m2. It has good value for money. Medical disposable protective clothing made from it can protect medical personnel from pollution sources, overcome cross infection and obtain effective protection.

Post time: Mar-19-2020
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