Waterproof breathable functional fabrics introduced

Waterproof moisture-permeable fabric refers to the water under a certain pressure is not immersed in the fabric, but the human body sweat but in the form of water vapor can be transmitted through the fabric to the outside world in order to avoid the accumulation of sweat condensate between the body surface and fabric to maintain the comfort of clothing Sex, it is a high-tech, unique functional fabrics. Waterproofing for ordinary fabric workers is not a problem, the key is how to achieve moisture permeability. Let's take a closer look at the type of waterproof and breathable fabric.
First, through the fiber to achieve moisture permeability
1, Werte fabric. The earliest waterproof breathable fabric is the famous Ventile fabric. It was designed in the 1940s by the British Shirley Institute, using Egyptian long-staple cotton high-count, low-twist pure cotton weave fabric, initially used mainly by the British Air Force pilots during the Second World War. Anti-immersion service. When the fabric is dry, the gap between the warp and weft yarns is large, about 10 microns, providing a highly moisture-permeable structure. When rain or water repels fabric, the cotton yarn expands, reducing the gap between yarns to 3 to 4 microns, This closed cell mechanism combined with a special water repellent finishing, to ensure that the fabric is not further infiltration of rain. At present, this type of fabric has long been replaced by other waterproof breathable fabric.
2, Coolmax class fabric. DuPont, Toray and other major international companies to study through the interior of the fiber channel to achieve the sweat out of the body, that is, the market of moisture-absorbent fabrics. Such fiber production technology concentrated in the hands of such large international companies, the price is relatively high, it is difficult to become the mainstream of the market.
Second, through the coating to achieve moisture permeability
A variety of waterproof and moisture-permeable coating agents are applied to the fabric using dry-process coating, transfer coating, foam coating, phase inversion or wet coating (coagulation coating) The surface of the fabric surface porosity is closed or reduced by the coating agent to a certain extent, resulting in water resistance. Moisture through the fabric through the coating on a special way to form a porous structure or coating agent in the hydrophilic groups and water molecules, with hydrogen bonding and other intermolecular forces, adsorption of water molecules in the high humidity side, after Pass to the low temperature side of the analytical role to get. The low price of the coating fabric, to achieve a certain moisture permeability, which is widely used. However, due to its poor waterproof breathable performance, feel is not satisfactory, the market share is gradually reduced.
Now developed the wet transfer coating fabric makes the coating fabric has rejuvenated the new machine, which not only waterproof and breathable, and other physical indicators are high, the fabric can do 100% Teflon treatment, washing fastness can reach 25 times Above, feel very good.

Xinxiang City Yulong textile specializing in the production of flame-retardant fabrics, fluorescent fabrics, anti-arc fabric and other functional fabrics and custom fire-retardant clothing, fluorescent clothing and other multi-functional clothing.