| 摘要 |
<p>Twosorts of film which have mutual affinity are simultaneously drawn; they have a different heat shrinkage, and can be drawn at approx. the same draw ratio when piled up. They adhere together into a one-piece drawn strip, which is cut into distinct fibres with potential shrinkage. Crimp is developed in articles made from the fibres by heating in the relaxed state. Pref. the films are of homo- or copolymers.</p> |
