How PE breathable film is the waterproof fabric?

Guangdong Huaping Hygiene Material Industrial Co.,Ltd. main products include PE cast film,PE breathable film,PE perforated film,Multicolor printed film,Nonwoven Laminated film,Anti-counterfeiting Holographic film etc .

First of all, we need to understand the so-called breathability, which is generally understood to be two types: breathability and vapor permeability, which are two completely different types of indicators. The former refers to ordinary air permeability, also known as windproof or air permeability; the latter refers to water vapor transmission rate, also called moisture permeability.

The second waterproof also has two types, one is ordinary water-repellent, the best is called super water-repellent; this means that water forms a ball effect on the surface of the fabric, just like on the lotus leaf, but a large amount of water stops for a long time On the surface of the fabric, the fabric will still be wet; another kind of waterproof refers to whether water can penetrate the surface to the inside of the fabric, which is commonly referred to as water pressure resistance. This kind of fabric can only be coated or filmed inside the fabric. achieved.

So to answer your question, we can know:

If you mean water-repellent and breathable, the fabric cannot be coated or film-coated, and most fabrics can meet this requirement as long as they are water-repellent finished;

If you mean water-repellent and moisture-permeable, most of the fabrics can meet this requirement as long as they are water-repellent;

If you mean waterproof, water pressure resistant and breathable, there is generally no such fabric, because the breathability of the fabric after coating is very low, most of them are zero;

If you mean waterproof, water pressure and vapor permeable, then most of the current jacket fabrics are fine.

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