Knowledge of medical protective clothing

Knowledge of medical protective clothing

Faced with novel coronavirus pneumonia, a group of medical staff members walked on the front line of epidemic prevention, and they built life safety line for us. Life protection clothing is the key barrier for them to fight against new crown pneumonia and protect their lives.

Similar to the mask material mentioned before, there are many medical isolation clothing, protective clothing is made of polypropylene non-woven fabric.

In the wechat circle of friends, due to the lack of medical equipment, some doctors even use polypropylene raincoats. Do these yellow, white, blue and dark blue protective clothing, isolation clothing and surgical clothing have corresponding standards? Are the material requirements the same? What tests need to be done? Now from the point of view of the material and we discuss~

Basic knowledge of protective clothing

1. Production of medical protective clothing

The production of medical protective clothing mainly uses flat sewing machine, overlock sewing machine and glue pressing machine to process the nonwovens that meet the protection requirements through cutting, sewing, tightening, gluing and other processes, and finishing with "three repellent and one anti" (water repellent, blood repellent, alcohol repellent, antistatic) functional finishing to make the medical protective clothing containing hooded jacket and trousers.

The protective clothing shall be dry, clean and free of mildew, and the surface shall be free of adhesion, cracks, holes and other defects.

Medical protective clothing

The protective clothing is composed of a hooded jacket and trousers, which can be divided into a one-piece structure and a split structure,

2. Relevant standards of medical protective clothing

The above indicators are directly related to the protective effect of liquid barrier function and filtration performance, which are to achieve the purpose of protection by blocking the spread of virus. The weaving of medical protective clothing is very tight and the pores are very small, which can play an effective protective effect. The classification standard of protective clothing in China is the pharmaceutical industry standard of the people's Republic of China YY / T 1499-2016 "liquid barrier performance and classification of medical protective clothing", which divides the medical protective clothing into four grades. The higher the level, the better the protective performance. In addition, whether the medical protective clothing is up to the standard needs to be inspected by the testing agency.

3. Answer the practical questions of protective clothing

Referring to the grade of protective clothing, the raincoat mentioned above actually has a very high impermeability, which can fully meet the requirements of AAMI level 4. Another advantage of raincoat is that there is no problem of fluff. Because bacteria are easy to adhere to such fluff, fluff is also a test requirement for medical non-woven fabrics.

Recommended for protective clothing fibers

As for protective clothing, there are many other types of applications. Here are three kinds of common protective clothing fibers, such as:

1. Seaweed fiber

Fiber characteristics: the fiber has strong flame retardant performance, moisture absorption, antibacterial, radiation protection and far-infrared;

Fiber application: commonly used in flame retardant protective textiles, conventional textiles and clothing, etc;

o polypropylene fiber

Fiber characteristics: the fiber has super filtration, super permeability, strong safety, and can be used repeatedly;

Fiber application: often used in masks, air filters, etc;

3. Polyimide fiber

Fiber characteristics: high and low temperature resistance, chemical corrosion resistance (industrial dust removal), flame retardant, warm keeping, original far-infrared function, skin friendly, antibacterial (direction of taking);

Fiber application: used in high temperature filter material, fire-fighting clothing, military clothing, industrial protective clothing, etc;

Recommend necessary equipment for travel during the epidemic period! Fisherman's cap, six page cap, web cap, two in one, can be detachable, encircling no dead corner, protect face and neck! Super protection, prevent dust, away from spray! The mask can be wiped and recycled with disinfectant, which is more comfortable for travel protection!