ePTFE anti-drilling down breathable fabric technology
Down jackets, duvets and other down Products are increasingly favored by consumers due to their excellent thermal insulation and comfort properties. However, the biggest obstacle that plagues down products is the absolute contradiction between the anti-drilling performance and breathability of the fabric. In order to obtain acceptable lint resistance, researchers in the textile industry have to reduce the breathability of fabrics as much as possible in order to obtain corresponding lint resistance. But since then, the breathability, washability and variety of options of the fabric have been sacrificed.
The emergence of Downproof® nanofiber membrane composite technology directly brings this pair of The conflict is completely resolved.
PTFE is the English abbreviation of polytetrafluoroethylene (Poly tetra fluoroethylene). This material is resistant to acids, alkalis, and various organic solvents. It is almost It is insoluble in all solvents and has stable physical and chemical properties at -190~250℃. Polytetrafluoroethylene is known as the “King of Plastics.” Roy Plunkett, the father of fluororesin, began researching substitutes for Freon at DuPont in the United States in 1936. They collected part of the tetrafluoroethylene and stored it in cylinders to prepare for the second They conducted the next experiment the next day, but when they opened the pressure reducing valve of the cylinder the next day, no gas escaped. They thought it was a gas leak, but when they weighed the cylinder, they found that the cylinder had not lost weight. They sawed open the cylinder and found a large amount of white powder, which was polytetrafluoroethylene.
In 1958, founders Bill Gore and Vieve Gore established Gore Corporation in the basement of their home. In 1969, Bill and Vieve’s son Bob Gore invented a new multifunctional polymer, expanded polytetrafluoroethylene (ePTFE), which has since rewritten the history of PTFE and has been used in medical, textile, pharmaceutical and biotechnology, petroleum and Numerous innovative products have been launched in the natural gas, aerospace, automotive industry, mobile electronics, music and semiconductor industries.
Industrial production of ePTFE products began in China. It has successively developed products such as ePTFE air filtration membrane series, ePTFE clothing membrane series, ePTFE vascular stent membrane series, ePTFE cable membrane series, ePTFE gasket series, ePTFE filament fiber and staple fiber series products.
With his profound technical background and corporate culture, Jin You has made great achievements in many fields Introducing advanced processes and innovative, reliable technologies that solve problems and improve people’s lives around the world.
While the industrial application field has achieved rapid development, Jinyou has invested more research and development energy into the civilian field and achieved objective development.
The diameter of water vapor molecules is 0.0004 microns, the smallest diameter mist in rainwater The diameter is 20 microns, and the diameter of drizzle is as high as 400 microns. If a film with a pore diameter between water vapor and rainwater can be made, it can be both waterproof and breathable. The American Gore Company became the first company to produce this film using polytetrafluoroethylene (PTFE). It was laminated with fabric and then named GORE-TEX (Gore-TEX™) film. After continuous efforts, it is laminated with other hydrophilic films to form a composite film, and special treatment is performed on the film to greatly improve its fastness. It is generally believed that the water pressure of this fabric can reach 10000mm, and the water pressure will drop significantly after washing 6-7 times; the air permeability can reach up to 10000g/sqm*24hrs, but it is not possible to reach this value just after making the fabric. After several washings, part of the glue is washed away, and the available pores are increased and the air permeability is increased. At the same time, the clothing made of this fabric can also block the intrusion of cold wind and prevent the wind from taking away the heat emitted by the body through the fabric, making the body slimmer. No windchill due to heat loss; in addition, the fabric can resist 97.5% of ultraviolet rays.
