Waterproof and air-permeable chemical fiber cloth

Abstract

The invention discloses waterproof and air-permeable chemical fiber cloth. The waterproof and air-permeable chemical fiber cloth comprises a chemical fiber fabric layer, and a non-woven fabric layer is arranged under the lower surface of the chemical fiber fabric layer; the upper surface of the chemical fiber fabric layer is provided with a plurality of bumps distributed in a matrix mode, and eachbump is of a cubic structure; a polyurethane (PU) layer is pressed on the upper surface of the chemical fiber fabric layer; the lower surface of the PU layer is provided with a plurality of protrusions distributed in a matrix mode, and each protrusion is hemispherical and is pressed on four corresponding bumps, wherein the diameter L1 of the protrusions is smaller than the sum of the distance L2between every two adjacent bumps and the side length L3 of each bump; and longitudinal channels penetrate through the PU layer, wherein each channel has two thin ends and a thick middle part, the cross section of each channel is in an S shape, and the bottom of each channel is located at the center of the bottom end of one corresponding protrusion. The chemical fabric cloth disclosed by the invention is good in waterproof and air permeable performance, and has relatively good wear resistance and tear resistance at the same time.

Description

technical field [0001] The invention relates to a chemical fiber product, in particular to a waterproof and breathable chemical fiber cloth. Background technique [0002] The textile industry is the pillar industry of our country. A large amount of cloth is sold all over the world every year. As people change the style, performance and place of use of cloth, cloth with various functions is also emerging. Nowadays, with the increase in the number of outdoor sports and leisure travel, people are more fond of cloth and clothing with special functions. The requirements of these clothing for the cloth are that the outer layer is waterproof, wear-resistant, the inner layer is soft, the overall breathability, and warmth retention. But now Some soft and breathable fabrics are mostly pure cotton textile products. Although they are light in weight, soft and smooth on the surface, suitable for wearing next to the skin, they have poor waterproof performance, no abrasion resistance, and ...

AI Technical Summary

Problems solved by technology

Nowadays, with the increase in the number of outdoor sports and leisure travel, people are more fond of cloth and clothing with special functions. The requirements of these clothing for the cloth are that the outer layer is waterproof, wear-resistant, the inner layer is soft, the overall breathability, and warmth retention. But now Some soft and breathable fabrics are mostly pure cotton textile products. Although they are light in weight, soft and smooth on the surface, suitable for wearing next to the skin, they have poor waterproof performance, no abrasion resistance, and poor tear resistance. Urgent need for improvement

Images