发明名称 |
METHOD AND APPARATUS FOR PRODUCING BAG WITH MOUTH MEMBER |
摘要 |
A method is provided for producing a bag with a mouth member by liquidtightly melt-bonding a mouth member comprising a thermoplastic resin and a bag unit comprising a relatively soft flexible film, in which uniform surface temperature of the mouth member is realized, generation of an A-shaped gap is prevented, and a bag with a mouth member excellent in the liquidtightness of the melt-bonded part between the mouth member and the bag unit is produced; and also a production apparatus therefor is provided. The method comprises a preheating step of heating a tubular mouth member while rotating it around the cylinder axis thereof, and a melt-bonding step of inserting the heated mouth member into the opening part of a bag unit and pressing, and thereby melt-bonding the mouth member to the opening part of the bag unit. |
申请公布号 |
EP1732744(A1) |
申请公布日期 |
2006.12.20 |
申请号 |
EP20050727290 |
申请日期 |
2005.03.28 |
申请人 |
SHOWA DENKO PLASTIC PRODUCTS CO. LTD. |
发明人 |
MIZUO, TAKAYUKI,;NAKAGAWA, TERUAKI;MATSUMOTO, NOBUHIRO |
分类号 |
B29C65/02;A61J1/00;A61J1/05;A61J1/10;B29B13/02;B29C35/04;B29C35/08;B29C35/16;B29C65/00;B29C65/18;B29C65/82;B31B19/84 |
主分类号 |
B29C65/02 |
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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