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Gannex is a waterproof fabric composed of an outer layer of nylon and an inner layer of wool with air between them. The trapped air is contained in pockets formed by fusing ("spot welding") the two layers at intervals. [ 1 ]
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Waterproof fabrics are fabrics that are, inherently, or have been treated to become, resistant to penetration by water and wetting. The term "waterproof" refers to conformance to a governing specification [ 1 ] and specific conditions of a laboratory test method .
Gossamer fabric is a thin, sheer woven fabric. The structure of the fabric is similar to a gauze. It is usually made of silk, cotton, or wool. The fabric may be coated with rubber to make it waterproof. [1] [2] [3]
Unlike most "waterproof breathable" fabrics, Analogy can pass out liquid water as well as vapour. Unlike a conventional waterproof fabric, Analogy would fail a hydrostatic head test (if used to seal the bottom of a tube containing water, only a very short column could be supported). However, like fur, Analogy causes water to flow away from the ...
Duck fabric is woven with two yarns together in the warp and a single yarn in the weft. By treating with wax, duck fabric can be made waterproof (see waxed cotton ). Cotton duck strips were the origin of duck tape, recorded in the Oxford English Dictionary as having been in use since 1899 [ 3 ] (see duct tape ).