发明名称 |
METHOD OF HEAT-SEALING THERMOPLASTIC FILM |
摘要 |
A method for heat sealing a portion of an upper heat sealable thermoplastic membrane (10) to a portion of a lower heat sealable thermoplastic membrane (12) which comprises placing a detachable stabilizer strip (20) on the outer surface of the upper membrane over the over-lap seam portions to be sealed. The stabilizer strip (20) must fully adhere or have mechanical contact to retain the dimensional stability of the upper membrane while maintaining the relative positions of the membranes. A hot air medium is directed between the upper and lower membranes thereby effecting a heat seal therebetween. Once the overlapped and sealed portions of the membranes are permitted to cool, the stabilizer strip may be removed. |
申请公布号 |
JPS6364728(A) |
申请公布日期 |
1988.03.23 |
申请号 |
JP19870215550 |
申请日期 |
1987.08.31 |
申请人 |
UNIROYAL CHEM CO INC |
发明人 |
AANISU YUU PAEGURISU;POORU DEII HINKURII |
分类号 |
B29C65/00;B29C65/10;B29C65/20;B29C65/40;B29C65/78 |
主分类号 |
B29C65/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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