Big Discount Fabric Water Repellent - Bonded TPU waterproof 3 Layer good Stretch Knit Softshell fabric – Yun Ai Detail:
Membranes are thin films made from polymers. There are basically two types of membranes – microporous membranes (they’re hydrophobic) and hydrophilic membranes.
The most widely used polymers for microporous fabrics are expanded PTFE (ePTFE) and polyurethanes (PU). Microporous films have about 1.2-1.4 billion tiny holes per square centimeter. These pores are much smaller than the smallest raindrops and they usually range between 0.1 and 10μm (1mm=1000μm). At the same time, they’re larger than water vapor molecules so that they can pass through the pores of the membrane.
So the memrbane have two Kernel argument.Waterproofness and breathability.
Waterproofness 3000mm-20000mm
Breathable 500gsm/24hours-10000gsm/hours
This two data will show us if the membrane quality is good or basic. TPU now is the widely use membrane,except this also have TPE,PU,PTFE etc.
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Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs of Big Discount Fabric Water Repellent - Bonded TPU waterproof 3 Layer good Stretch Knit Softshell fabric – Yun Ai , The product will supply to all over the world, such as: Georgia, Australia, Japan, We are fully aware of our customer's needs. We provide high quality products, competitive prices and the first class service. We would like to establish good business relationships as well as friendship with you in the near future.
By Ivy from Oslo - 2018.11.22 12:28
As a veteran of this industry, we can say that the company can be a leader in the industry, select them is right.
By Coral from Philippines - 2017.01.28 19:59