发明名称 IMPROVEMENTS IN OR RELATING TO FILM PACKAGING
摘要 Packaging apparatus, using an upper film (6) pre-heated before contact with a lower film (9) on which products (not shown) are placed, has at least the central region heated by radiant heaters (7) and the marginal regions heated by hot air nozzles (10) at least in the region immediately preceding contact (8) between the upper and lower films.
申请公布号 AU5217390(A) 申请公布日期 1990.09.27
申请号 AU19900052173 申请日期 1990.03.23
申请人 W.R. GRACE & CO.-CONN. 发明人 SANDRO BREMBILLA
分类号 B29C65/00;B29C65/10;B65B11/52 主分类号 B29C65/00
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