Top Quality Outdoor Spandex Fabric - 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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During the past few years, our business absorbed and digested state-of-the-art technologies the two at home and abroad. Meanwhile, our firm staffs a group of experts devoted to your development of Top Quality Outdoor Spandex Fabric - Bonded TPU waterproof 3 Layer good Stretch Knit Softshell fabric – Yun Ai , The product will supply to all over the world, such as: Cyprus, Zimbabwe, Ethiopia, Our tenet is "integrity first, quality best". We have confidence in providing you with excellent service and ideal products. We sincerely hope we can establish win-win business cooperation with you in the future!
By Constance from Paraguay - 2017.08.18 18:38
In China, we have purchased many times, this time is the most successful and most satisfactory, a sincere and realiable Chinese manufacturer!
By Beulah from Wellington - 2017.02.28 14:19