Name of equipment:

Bundesmann water repellency tester

Purpose:

Determination of water repellency of fabrics by the Bundesmann rain-shower tests under defined conditions.

Model, type, country of origin:

 Erhardt-Leimer, Germany

Technical characte-ristics:

 300 nozzles (0,07ml/tr), h = 150 cm, specimens are titled at specified angle of 150, Surface size: 80 cm2.

Surface diameter: 100 mm, tube diameter: 130 mm, container volume: 500 ml, speed 6,2 – 6,5 rpm
Year of origin:  –                   

Figure:

Method of
work:

 Bundesmann water repellency tester determines the resistance to the passage of simulated rain by fabrics being rubbed and rotated. Water that penetrates the fabric is measured and the testing specimen is weighed to determine the amount of water being absorbed. The amount of water that penetrates the sample is measured. After removing the sample from the carrier the centrifugal spinning of the sample is carried out . The appearance of the surface is assessed by etalons. The amount of absorbed water in the fabrics is then determinated by weighing the sample.

Department,
room, location:

 Department for Textile Chemistry and Ecology, Technological Laboratory for Textile Finishing, Savska cesta 16/9
Addition note:   /