Process for encapsulation of cellulose based substrate using...

Details Process for encapsulation of cellulose based substrate using... Process for encapsulation of cellulose based substrate using...

B - Operations, Transporting

31

B

B31B 7/00 (2006.01) B29C 63/02 (2006.01) B65D 5/56 (2006.01)

Patent

CA 2571151

A method for providing for encapsulating a cellulose based substrate (20) with polymeric films (43) involves heating the respective films using a non- electrogmagnetic radiation heating source and providing a pressure differential between an environment defined between the films (43) and an environment external to the films (43) so that conformance of the films to the cellulose based substrate (20) is promoted. The cellulose based substrate (20) is entirely encapsulated by the films and the films are sealed around the peripheral edges of the container as well as edges that are defined adjacent slots (32) and cutouts (42).

Cette méthode de mise en capsules d~un substrat à base de cellulose (20) dans un film polymérique (43) consiste à chauffer les films respectifs à l~aide d~une source de chaleur à rayonnement non-électromagnétique et à fournir une pression différentielle entre l~environnement délimité par les films (43) et l~environnement externe aux films (43) afin d~accentuer la conformité des films au substrat à base de cellulose (20). Le substrat à base de cellulose (20) est entièrement encapsulé par les films qui sont scellés autour des bordures périphériques du boîtier ainsi que des bordures délimitées par les encoches (32) et les découpes (42) adjacentes.

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