The current development of protective clothing can be divided into cold protection, bulletproof, and mechanical protection, anti-radiation, anti-toxic substances, microbial / bacterial protection, hazardous chemical protection, overheating protection and fire protection and other species.
1, cold protective clothing:
Protective clothing required subcooling product has high insulation resistance, a small size, good comfort and movement sensitivity. Still air is a poor conductor of heat, in addition to the best insulation medium can also be used as well as other poultry feather fluff and feathers, etc., or through a simulation designed to increase the natural animal fibers or filled with a variety of high loft insulation material in the still air content. In the market, coarse fibers, fine denier fibers and conventional fibers mixed Thinsulate 3M Company and Albany International Primaloft, fibers absorb less than 1% of the mass of moisture, so that the natural hair products than in the warm wet conditions better; American Arthur D Little has designed a suit in the Antarctic using multilayer synthetic clothing, inside was a stem Qinshui finishing polyester fluff lingerie, the middle layer is a high loft polyester brush pile insulation layer, the outer layer is waterproof windproof breathable PTFE (polytetrafluoroethylene) coated finishing knitted Kevlar. But such garments can not use ordinary clothes washing ironing manner.
2, bullet-proof, anti mechanical damage Clothing:
This is a class of body armor personal protective clothing, mainly used bullet-proof, anti-cut, anti-sawing, anti thin sheet metal, glass, knife or other sharp object against the edge. Kevlar replace nylon was a big step forward in this field, in the field of soft armor, can be used to provide further Kevlar bulletproof multilayer stacking and anti-stab protection. Currently, Allied's Spectra Spectra Shield use high strength polyethylene fiber composite laminate polyester, Kevlar lighter mass than 1/3, which can provide a layered composite material 23 and 30 layers of Kevlar composites same level of protection. Spectra Shield temperature can not exceed 200 degrees Fahrenheit, but the material forming the thermal performance is satisfactory, can be made of the desired shape. Anti-cut and other mechanical protection products including the use of para-aramid protective gloves made of, baffles, protection sleeve, anti-sawing needle felt like. Leggings can be used for coarse nylon or aramid yarn and synthetic fiber needle felt, needle felt or woven material with complex, entangled with the electric saw and make it stop, to prevent significant harm to the body.
3, radiation protective clothing:
Most clothing can have a certain degree of control and isolation outside material into the role of the skin and harmful substances, but the radiation protection requires special copolymer coating, such as the commonly used polyethylene coated Tyvek, used in nuclear plants, high-voltage now or electronic equipment as well as X-rays in the environment. America's Savannah River Site Plutonium plant uses this special anti-Tritium (tritium) protective clothing, this clothing is polyester material on both sides, with a coating material for the CPE / EVA / PVDC (Saran) / EVA copolymer, there uniform non-manufacturing cloth Saran / CPE coated cloth material or inorganic material. Polyethylene coated boron fibers used in Japan to produce radiation protective clothing can also be added to the fiber lead core to improve the level of protection for the X-ray environment.
4, harmful particles protective clothing:
This protection is taking on the task to lead dust, spray or a similar design fine work areas of hazardous substances protective clothing, such clothing is usually caused by non-manufacturing materials, there is also woven polyester blends, cotton or coating material . USA There are three main criteria Fabric: uncoated Tyvek; Kimberly Clark 3-layer spunbond - meltblown - spunbond Olefin fabric Kleen Guard; confounding non-manufacturing materials such as spunbond Olefins. These products are usually one-time use, there is now the main problem is to improve the wearing comfort, the body issued sweat dissipate through clothing.