| 摘要 |
A plastics material film (1) is stretched beyond its yield point to about 100 % to 400 % elongation and thereafter only partially relaxed to release part of the elastic deformation component in the film to retain between about 20 % and 80 % of the elastic deformation in the film (1), the film thereafter being stored in this partially relaxed state whereby, when it is used, the retained elastic deformation capability is useable for the intended purpose of the film, for example, wrapping a load.
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