Materials and characteristics of the raincoat: Polytetrafluoroethylene (ptfe) waterproof and breathable laminated fabric is formed by using special beads of adhesive to combine the ptfe microporous film and ordinary fabrics through a lamination process. of. The fabric has excellent waterproof, breathable, windproof and warm properties. It not only has outstanding performance, but also has a wide range of applications, flexible design, and low pollution. Construction of Laminated Fabrics Laminated fabrics can come in different structural designs and number of layers depending on the end use. The two-layer composite can be a composite of fabric and film, using a flexible surface structure; it can also be a composite of Rico and film, using a flexible surface structure, which is easy to wash and is suitable for civilian sportswear and cold-proof clothing. Three-layer lamination is a composite of fabric, film and Rico. Although it feels slightly harder, it can improve wear resistance and is suitable for military combat uniforms and labor protection clothing. Four-layer or multi-layer composites can increase the functionality of laminated fabrics, serving as anti-virus materials for gas resistance layers, liquid resistance layers, and far-infrared cotton thermal insulation materials. Both noodle and rico fabrics should have a certain density to prevent glue seepage from the bonding process. In order to control the total weight of the laminated fabric, the surface and lining should be made of fine-denier, ultra-fine-denier polyester or nylon as much as possible. Depending on the requirements, functional fabrics such as camouflage, flame-retardant, anti-static, oil- and water-repellent, easy-to-remove, and acid-alkali-resistant fabrics can also be used for fabrics. Application of waterproof and breathable fabrics ptff waterproof and breathable laminated fabrics were first developed for the production of military uniforms and protective clothing, and later used in sportswear. In the manufacturing of tents and other items, the application fields are still expanding. For Air Force pilots, Navy soldiers and special forces, the sudden drop in body temperature caused by sudden immersion in cold water is one of the important factors causing casualties. The US military has designated waterproof and breathable clothing for air force pilots. Special anti-riot clothing for seafarers and special forces conducting land, sea and air operations. This type of clothing can provide protection for up to 2 hours in cold water with a temperature of 7 degrees, and is light and comfortable to wear. The main technical performance requirements of military raincoats are good waterproof and breathable functions and light weight. PTFE microporous composite fabric not only solves the contradiction between breathability and waterproofing, but also reduces the weight of the raincoat, thereby effectively reducing the load of soldiers. Firefighting suits use woven aramid cloth for the face, PTFE for the membrane, warp-knitted aramid knitted cloth for the lining, and phosphorus-containing polyurethane as the agent. Improves the comfort of wearing protective clothing. Military light tents require rain-proof, flame-retardant, anti-aging, etc., and PTFE film material has the characteristics of corrosion resistance, resistance to strong acid and alkali, and aging resistance, so PTFE laminated fabric can be used. The sleeping bag requires warmth, breathability, light weight, etc. Based on the characteristics of PTFE microporous membrane laminated fabric, it adopts a double-layer structure, with the outer layer being nylon fabric and the inner layer being PTFE membrane. There is no risk of hypoxia or carbon monoxide poisoning when using this sleeping bag. Because the PTFE material has extremely excellent chemical resistance and flame retardant properties, and the microporous structure of the film makes it have superior waterproof (liquid) breathability, it has become an ideal material for the development of nuclear, biological and chemical protective clothing. PTFE waterproof and breathable laminated fabric can not only meet the wearing needs of people during activities in harsh environments such as severe cold, rain, snow, strong winds, etc., it is also suitable for people's daily life requirements for raincoats, footwear, etc., and has broad application and development prospects. In the future, the research and development of ptfe waterproof and breathable laminated fabrics will focus on reducing costs and working towards making the fabrics more lightweight, comfortable and multi-functional.