The purpose of the Fabric Water Vapor Permeable Test is that sportswear and windproof and cold-proof clothing have higher requirements on the breathability of fabrics. Some industrial textiles, such as aircraft parachutes and filter cloths, have special requirements for the breathability of fabrics. Some industrial textiles, such as aircraft parachutes and filter cloths, have special requirements for the breathability of fabrics.

The air permeability of the fabric is determined by the number and size of the warp and weft yarns and the fiber gap in the fabric, and is also related to the warp and weft density, the special number of the warp and weft yarns, and the twist of the yarn. In addition, it is also related to factors such as fiber properties, yarn structure, fabric thickness and volume weight. That is, under the specified pressure difference between the two sides of the fabric, the air volume flowing through the unit area of the fabric per unit time, the unit is L/mm2s. Because the pressure difference is a necessary condition for air to flow, only when a certain pressure difference is maintained on both sides of the fabric to be tested can air flow in the fabric.

By testing the breathability of the fabric, problems and solutions can be put forward for the production of the fabric, so that it can be produced in accordance with scientific standards and improve the quality of people's clothing and industrial fabric materials.

For more detailed Fabric Water Vapor Permeable Tester experimental details, please pay attention to the QINSUN instrument!