What is the test for water proof fabric?

 

Expose the waterproof fabric to simulated rain conditions and observe whether water seepage appears on its surface. This can be done by simulating rainfall of different intensities and timings.

 

Use a water pressure tester to measure the waterproof performance of waterproof fabrics under a certain water pressure. When testing, place the fabric sample under the water pressure tester and gradually increase the water pressure until water seepage occurs. Test results are expressed as water pressure values.

 

Use a friction tester to rub the waterproof fabric and observe whether water seepage appears on its surface. This simulates friction in everyday use, such as clothing coming into contact with other objects.

 

Place a sample of waterproof fabric in the washing machine, wash it several times, and observe whether its waterproof properties change. This evaluates the fabric's water-repellent properties after long-term use and cleaning.

Use a wear tester to wear the waterproof fabric and observe whether water seepage appears on its surface. This simulates the wear and tear the fabric undergoes during daily use, such as rubbing against other objects.

 

Assess the waterproofing properties of fabrics by testing their breathability. This can be done using a moisture permeability meter or a breathability tester, with the test results expressed as a breathability index.

 

The above are some common testing methods for waterproof fabrics. Different testing methods can comprehensively evaluate the waterproof performance of fabrics. These tests can help manufacturers and consumers choose suitable waterproof fabrics to ensure they have good waterproof performance in actual use.