METHOD OF SEALING OF PLIED ARTICLE CONSISTED OF * WHOLLY * PLASTIC MATERIAL * BY FUSION * ADOPTING TTTYPE OR THRUSTING TYPE OF SEAL,申请号JP19760151851-传众专利搜索

METHOD OF SEALING OF PLIED ARTICLE CONSISTED OF * WHOLLY * PLASTIC MATERIAL * BY FUSION * ADOPTING TTTYPE OR THRUSTING TYPE OF SEAL

申请公布号：JPS5276381(A)

申请号：JP19760151851

申请日期：1976.12.17

申请公布日期：1977.06.27

申请人：

TSUIRISHIYUTOORU AB

发明人：YAN ERITSUKU ORUZEN

分类号：B29C53/00;B29C35/04;B29C65/00;B29C65/02;B29C65/10;B29C67/00;B31F7/00

主分类号：B29C53/00

摘要：The laminate (1) consists of a support layer (2) of expanded polystyrene and is laminated on both sides with compact layers (3, 4) of polystyrene. The end face (5) on which the support layer (2) is exposed is blown on by a hot-air nozzle (6), the blowing channel (7) of which corresponds at least to the thickness of the support layer. During heating by means of the hot-air jet, the end face (5) melts, the support layer (2) contracting and the two outer layers (3, 4) fusing together. The laminate (1) can then be welded simply in an abutting or T-shaped manner to a second laminate. The process can be used, for example, in the production of packages for liquid foodstuffs. <IMAGE>