NEWS

Raincoat is a common and common item in our life. It not only plays a role in blocking the rain when cycling, but also a necessary item for outdoor operation in many industries. There are many materials of raincoats, but the working principle is the same.

what are the raincoat material:

Material a polyvinyl chloride/PVC: is often seen outside the jelly translucent plastic raincoat, this raincoat low price, color style more, but easy to damage.

Material II nylon plus polyvinyl chloride: that is, the inner surface of nylon fabric is coated with a PVC waterproof layer, which is moderate in price and not easy to be damaged. It is the main material for raincoats now, but it is easy to wrinkle during wearing.

Material three waterproof and moisture permeable cloth: the inner surface of the cloth is coated with a layer of waterproof and moisture permeable paint, like raincoats commonly used by police and mountaineers, which has waterproof and breathable effect, but the price is high.

Material IV Oxford cloth: made of cotton or polyester through a specific weave of the fabric, easy to wash and dry, feel soft, good moisture absorption, fabric color soft, soft and breathable, comfortable to wear, but not wear-resistant.

the working principle of raincoat:

Rain drops will quickly gather into a small drop on it and then flow away. This non-wetting phenomenon is the reason why raincoats are waterproof. Because the attraction of rubber molecules to water molecules is much smaller than the attraction between water molecules, water molecules prefer to get together and roll down the raincoat. At the same time, there are many small holes in the raincoat fabric, but because the rain does not soak the rubber, water molecules are difficult to pass through the raincoat fabric from these small holes, so these small holes can not prevent the air molecules, which ensures the breathability of the raincoat.