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Waterproof Fabric Has Low Surface Energy

BLOG_POSTED_BY xixiximin     २०१९ नोभेम्बर ४    

A waterproof property of fabric refers to the barrier and anti-hate property of fabric when it permeates liquid water. Traditionally, the term "Waterproof Fabric(WANSHIYITEX)" is used to describe a fabric that is impervious to water even when water pressure is applied. Whether it is liquid water or gaseous water, this characteristic is not always maintained throughout its service life. Water cannot pass through the fabric, but it can wet the surface of the fabric. Generally, the fabric can be made waterproof only by coating the surface of the fabric or compounding the fabric with a layer of dense film that cannot pass through water.

Waterproof fabric refers to the fabric's ability to resist the infiltration of water fabric under the static condition without any external force. Water-repellent fabric can allow gaseous water to pass through, while liquid water is not allowed to permeate under static conditions, which in essence does not allow water to wet the fabric. This requires the fabric to have low surface energy.

Waterproof fabric refers to the ability of the fabric to be completely impervious to water under the condition of applying water pressure, to transmit water vapour in daily use, and to maintain this characteristic throughout its service life. The essence is that there is a huge difference between the volume of water vapour molecules and water droplets. In order to improve the waterproofness, it is usually required that the outer surface of this fabric is not easily wetted. The American Association of Textile Chemists and Dyers and the American Society for Testing Materials define repellency as the ability of a fabric to resist penetration or both.

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