Application of Auto Water Vapour Permeability Tester TF165B

Waterproof and water vapor permeability fabric means that under certain pressure, water will not be immersed in the fabric, but the sweat emitted by the human body can be transferred to the outside world in the form of water vapor through the fabric, thus preventing sweat from accumulating and condensing between the body surface and the fabric in order to maintain the comfort of the garment. It is a high-tech and unique functional fabric. For ordinary fabric, waterproofing is easy to achieve, the key is how to achieve water vapor permeability.

Auto Water Vapour Permeability Tester TF165B is the instrument used to measure the water vapor permeability of various fabrics (including moisture-permeable coated fabrics) and wadding tires, space cotton, and other garment nonwoven fabrics.

Waterproof and water vapor permeability fabrics have been developed and used in the production of military and protective clothing, and are now widely used in the manufacture of sportswear, travel bags, tents, and so on. In addition, waterproof and water vapor permeability fabrics can also be used as trauma dressing, such as cotton gauze, which can keep wound skin dry, and as surgeon’s work clothes and dustproof work clothes in the clean studio, in addition to the above-mentioned uses.

Specifications of Auto Water Vapour Permeability Tester TF165B

• Airflow speed:  0.1 ~ 0.8 m/s
• Temperature:   18 ~ 50°C ± 0.5°C
• Humidity:         40% ~ 95%
• Power:             220 V   50/60 Hz  4500 W
• Weight:            320 Kg
• Dimensions:    880 x 700 x 1760 mm (L x W x H)

Standards

• ASTM E96: Standard Test Methods for Water Vapor Transmission of Materials
• GB/T 12704: Textiles-Test method for water-vapor transmission of fabrics-Part 1: Desiccant method
• JIS L1099

In a constant temperature and humidity test environment, the permeable cup is placed, the specimen is placed in the cup and sealed with a rubber gasket, then the permeable cup with moisture absorbent or water and fabric specimen is placed in the sealed environment of the specified temperature and humidity, and the permeable amount is calculated according to the change in the quality of the permeable cup (which includes the specimen and moisture absorbent or water) within a certain period of time.