Waterproof Treatment And Test Method For FabricApr 13, 2022
There are many examples of textile waterproofing in daily life, such as umbrellas, diving suits, etc.
How are textile fabrics waterproofed? Commonly used fabric waterproof treatment is divided into water-repellent treatment and hydrostatic pressure-resistant treatment, moisture-permeable waterproof treatment. GESTER has a corresponding waterproof test instrument.
1. Water repellent treatment After the fabric is treated with water repellent, the surface tension changes and the fabric changes from hydrophilic to hydrophobic. The water drops on the fabric, just like dropping on the lotus leaf, can roll but not wet. Corresponding water repellent testing machine: Spray Rating Tester For Textile GT-C31
Spray Rating Tester can performs a shower test to determine the resistance of fabric to surface wetting by water.Spraying quantitative distilled water on the specimen (at a 45 degree angle and 150 mm below) with standard nozzle. Then contrast andevaluate the specimen surface with the standard cards.
2. Hydrostatic treatment The surface of the fabric is coated with a continuous film that is impermeable to water, blocking the voids in the fabric and hindering the passage of water droplets. This method is also called coating finishing. Corresponding Hydrostatic tsteng machine:Hydrostatic Head Tester For Textile GT-C26A
Digital Hydrostatic Head Tester is used to testing the waterproof properties offabrics through waterproofing work such as canvas, coated fabrics, hood fabric,tarpaulin, rain-proof fabrics and geotextile.
3. Moisture permeable and waterproof treatment Clothing is usually finished with moisture permeability and waterproof, so that it has a certain waterproof performance without reducing the moisture permeability of the fabric, and it is comfortable to wear and not stuffy.
Fabric water vapour Permeability Tester to test the water vapour transmission of various fabric(moisture permeable fabric included) andnon-woven fabric such as bat wool, space cotton, sportswear fabric etc.
Tips According to the use of the product and the expected effect to be achieved, choose the appropriate method to test the waterproof performance
English 
