1, a kind of expanded PTFE composite membrane microporous fabric, most of which are GORE-TEX, DENTIK, EVENT, 3TO 1-TEX in China at present. Its waterproof and breathable function is to compound a layer of microporous membrane on the outer fabric of clothing, in which micropores are smaller than water droplets and larger than gas molecules, which can block rain and volatilize their own sweat.

2. The other is a hydrophilic fabric coated with PU or TPU, whose function is realized by non-porous waterproof layer and hydrophilic molecular chain structure.

Related instructions

The fabric of jacket is generally divided into the outermost protective layer, the middle waterproof and breathable layer and the inner lining.

The protective layer and waterproof and breathable layer are pressed together, and the inner lining is separated from them, usually nylon wire, mesh cloth or some sweat-absorbing materials, mostly black. The adhesive tape at the joint is blocked by the lining and cannot be seen (unless it is separated by a grid cloth). Three-layer fabric: protective layer, waterproof and breathable layer and lining are pressed together to look like a layer fabric. Generally, the color of lining is mostly silver gray.

You can see the layering at the seams of the lining. Generally speaking, the air permeability and warmth retention of the two-layer fabric are slightly better than that of the three-layer fabric, but the three-layer fabric is light in weight, comfortable to wear and small in folding volume, so unless it is only used in winter or snowy mountains, it is generally better to choose the three-layer fabric.

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