Learning Aims:

Students learn that the processing of textiles leads to different membranes which have different properties. Furthermore, membranes can undergo other treatments in order to show specific properties.

Materials:

    Research pictures of different layers of a membrane used in functional clothes such as Gore-Tex® or similar.

    Membrane samples to perform same experiments as in 3.4 (textile samples can either be worn clothes or producers can be asked for defect clothes items that had been returned to them)

      Suggestions for use:
        • Compare layers of functional clothes with those of TetraPak, have students draw analogies with the functions of the layers and discuss why/why not those layers could also be used in textiles.