The development history of waterproof and breathable membranes:
The first generation, shoes, clothing, tents, and sleeping bags, in order to achieve waterproofing and windproofing, they just covered the fabric with waterproof glue to achieve waterproofing. Purpose: Products made from this material and process can withstand a certain amount of water pressure, but they are absolutely not breathable and have poor waterproof and breathability.
The second generation, PU film, is a material with good water pressure resistance. By combining the product fabric with it, it can achieve better waterproof stability. Its high-end products may be slightly transparent. Wet function, but the effect is very unsatisfactory. For example: KING-TEX is currently on the market.
The third generation, TPU film, is developed on the basis of PU film. It is better than PU film in terms of air permeability, moisture permeability and water pressure resistance. It is a waterproof and breathable film that replaces PU film. In China, there are TING-TEX, KING-TEX, etc.
The fourth generation, EPTFE (polytetrafluoroethylene) is the latest generation of waterproof and breathable materials. This material is used by world-class factories, and combined with the research and development composite processing technology of each company to develop different products with their own specialties. The brand's EPTFE composite fabric is the most waterproof and breathable today. The main ones that have outstanding performance in the international market are: GORE-TEX (developed by Gore Company of the United States, open type is selected by various outdoor products companies around the world), OMNI-TECH (developed by COLUMBIA Company of the United States, only for its own brand use), FIRST-TEX (developed by FBA International Group in the United States, only used in designated brands. In 2014, the number one outdoor brand in the United States was using this material), EVENT (developed by a professional waterproof and breathable material manufacturer that has rapidly emerged in recent years), TEXPORE ( It is a professional waterproof and breathable material developed exclusively by the German JACKWOLFSKIN company (for its own brand use only) and other internationally renowned material manufacturers or well-known outdoor brand companies.