Directional Water Transport Tester (DWTT) for Fabrics

Method and instrument for measuring water absorption and transport properties of fabrics

This Directional Water Transport Tester(DWTT) is a sensitive, accurate and reliable instrument for fabrics’ water absorption and transport measurements. DWTT’s measurements are based on gravimetric and image analysis of water absorbed by a fabric. Then it can trace the direction of water spread and measure the amount of water transported on the skin. The DWTT can release water continuously and controllably to simulate different sweating levels. The DWTT measurement is fast and cost-effective. With this instrument, textile industry can characterize fabrics efficiently. It helps product developers to select suitable fabrics for different garments.

Visualized wetted area and water content of 6 tested fabrics and filter papers

Experimental set up of the Directional Water Transport Tester

Special Features and Advantages

Capable of simulating the sweating condition under different metabolic levels
Capable of tracing the direction of water transport
Possible to differentiate the amount of water left on skin when sweated
Versatile in terms of the types of fabrics could be tested
Possible to investigate wicking within a clothing ensemble

Applications

Measurement of water absorption and transport properties of fabrics under different sweating levels
Product development of sportswear, medical textiles and hygiene products

Patent

Patent No.

201610180551X (China)

Principal Investigator

Dr Chi-Wai KAN

Institute of Textiles & Clothing

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