Erasmus+ 1 | Page 73

Worksheet C1

Absorbing power

To detect the amount of water in the fibre we have to know the weight of the dry fibre (m1) and the weight of the damp fibre (m2). The amount of water is calculated as the difference of the weight of the dry fibre and the weight of the damp fibre rated to the weight of the damp fibre. The amount of water is given in percentage.

Task: Determine the absorbing power (the amount of absorbed water) of the particular sample.

Tools: textile samples, a pot for water, scales

Table:

Procedure:

Weigh the dry sample

Soak the sample in cold water (cca 20 °C) for 1 minute

Take the sample out and leave it drip off for 2 minutes

Weigh the damp sample

Calculate the absorbing power N

Repeat the procedure for each

Properties:

For the absorbing power: