Clevertex - Grado Zero Espace Srl

made out of this fabric. The sleeves fabric could be programmed to shorten immediately as the room
temperature became a few degrees hotter. The fabric can be screwed up into a hard ball, pleated and
creased then just by a flux of hot air (even a hairdryer) pop back automatically to its former shape.
Fig. 106 Crease resistant shirt [159]
Further, Haggar Clothing (USA) launched a men’s shirt and trouser line called ForeverNew by the
end of the year 2004 [190]. They promised that the colour of the clothes will not fade, the textile will
not shrink; will stay without wrinkles and stains.
Polymers
Shape memory polymers can be applied in thermal-insulating (against heat as well as against extreme
colds) clothing. Therefore polymers are used that have an actuation temperature within the clothing
temperature environment.
The thermal-insulating effect is mainly obtained by incorporating an air layer between the different
textile layers. The idea is to apply an adaptable polymer film between two layers of textile. When the
temperature at the outside textile layer decreases, this is passed through to the adjacent shape
memory polymer layer, which changes into another form, resulting in a broader air gap between the
two textile layers.
This can be realised when the shape memory polymer takes a non-flat shape during cooling and when
the polymer layer is sufficiently resistant against the forces influencing the textile material. Moreover,
the polymer film has to be able to undergo different transformation cycles.
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