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Gore-Tex is W. L. Gore & Associates's trade name for waterproof, breathable fabric membrane. It was invented in 1969. It was invented in 1969. Gore-Tex blocks liquid water while allowing water vapor to pass through and is designed to be a lightweight, waterproof fabric for all-weather use.
Durable water repellents are commonly used in conjunction with waterproof breathable fabrics such as Gore-Tex to prevent the outer layer of fabric from becoming saturated with water. This saturation, called 'wetting out,' can reduce the garment's breathability (moisture transport through the breathable membrane) and let water through.
Construction of Gore-Tex clothing. More popularly, Gore-Tex is known for its use as a waterproof, breathable fabric, used in outdoor clothing and sport footwear. To the human eye, it looks and feels like a smooth fabric. Structurally, the membrane of the fabric contains about nine-billion microscopic pores per square inch.
W. L. Gore & Associates, Inc. is an American multinational manufacturing company specializing in products derived from fluoropolymers. It is a privately held corporation headquartered in Newark, Delaware. It is best known as the developer of waterproof, breathable Gore-Tex fabrics.
Also known as JIS L 1099 is similar to the ASTM E96-BW test method. A desiccant, potassium acetate, is put into a cup and sealed with a piece of ePTFE (Teflon/Stedfast/Gore-Tex film). The fabric to be tested is then placed over the cup with the fabric side to the cup. The cup is then inverted into a pan of water.
A closed membrane like Sympatex differs from microporous membranes (such as Gore-Tex) which have microscopic pores that let air (and water vapour) pass through, yet have such low surface energy that the surface tension of any (liquid) water in contact remains too high to allow it to squeeze through the pores. Microporous membranes have ...
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The parka and trousers (which have been adapted to the civilian outdoor clothing market) are themselves constructed in a three-layer fashion consisting of an outer layer of abrasion-resistant taslan nylon, an intermediate layer of durably waterproof, windproof, and Gore-Tex membrane (protected with a layer of nylon tricot and originally in a ...