The ePTFE fabric is a polytetrafluoroethylene microporous membrane laminated with ordinary fabric through a special process. The fabric integrates the excellent waterproof and moisture permeability of ePTFE membrane, so that the sweat vapor can quickly penetrate the fabric, and the human body will not feel boring, so it is the top waterproof and breathable material at this stage.
Process requirements
Requirements: Fabrics and linings are selected appropriately according to user requirements. Water-repellent finishing: According to user requirements, organic fluorine or silicone waterproof finishing agent can be used. Corona discharge: voltage 5 ～ 25KV, spacing 2 ～ 20mm. Adhesive coating: For the wet method, you can choose to use organic glue or PU glue. The amount of glue is 10 ～ 20g / m2, and the vehicle speed is 8 ～ 10m / min. bake
Dry or dry: temperature 90 ～ 150 ℃. Hot pressing compound: temperature 150 ～ 165 ℃, pressure 4 ～ 6bar, time 15 ～ 20s.
ePTFE membrane has the characteristics of high hydrophobicity, heat resistance stability, excellent chemical resistance and insulation, etc. It is laminated with the fabric to make Zhiteng laminated waterproof and breathable fabric fabric by point bonding. Its new-generation product is a composite fabric composed of the original hydrophobic multi-microePTFE membrane and organic fluorine oil-repellent finishing after durable water-repellent finishing. It allows permeation of water vapor molecules and can prevent the passage of liquid substances In addition, it can overcome the body fat pollution and the washing surfactant to reduce the water resistance, thereby improving the waterproof moisture permeability and durability, and correspondingly increasing the resistance to hydrostatic pressure.
The e-PTFE fabric is made by laminating e-PTFE membrane and fabric through a special process. Generally divided into single paste fabric, double paste fabric. Single-stick (two-in-one): e-PTFE microporous membrane is made of nylon or polyester fabric as the surface layer; double-stick (three-in-one): nylon or polyester fabric as the surface layer, nylon warp knitted fabric as the inner layer, In the middle is the lamination of e-PTFE microporous membrane. Experiments have shown that when the temperature of the microclimate zone in the clothes close to the human skin is around 32 ° C and the humidity is around 50, the human body is in the best physiological state. Sweating of the human body is an effective means of heat dissipation in thermal balance adjustment. 80% of the heat dissipated by the human body is evaporated through the skin of the body. For a long time, although coatings and laminated fabrics such as PVC, PU and TPU have a certain effect on the waterproofing and warmth of the clothing, they cannot accumulate sweat to the outside of the clothing, so that the sweat can accumulate in the clothing and make the human body feel wet and cold. Bored phenomenon. The special microporous structure of Zhiteng e-PTFE fabric makes it have excellent waterproof, moisture-permeable and wind-proof functions. It truly achieves waterproof, moisture-permeable, wind-proof and breathable, and makes the human body feel dry and comfortable. It is called "breathable fabric". Mainly used in high-end functional fields such as outdoor supplies, military uniforms and medical protection.