ガス遮断性を有するスパウト及びその製造方法並びに該スパウトを装着したスパウト付き容器
- 专利权人:
- 東洋製罐株式会社
- 发明人:
- 竹内 公生,黒沢 高博
- 申请号：
- JP2006268223
- 公开号：
- JP5306587B2
- 申请日:
- 2006.09.29
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a spout excellent not only in gas-barrier properties for preventing the intrusion of oxygen into a container but also in productivity.
SOLUTION: In this spout 1, a diaphragm 6 for closing a pour-out port is provided in a pour-out cylinder portion 2 a multilayer cylinder-like sleeve 8 with a functional resin layer 9 is provided on the inner peripheral surface of the pour-out cylinder portion and a lower end of the diaphragm 6 and that of the sleeve 8 are located in a position to serve as a portion 16 for being sealed to a container body 15. The spout 1 is heat-sealed to an opening of the container body 15. The spout 1 is injection-molded through the following steps: the sleeve 8 with the functional resin layer is separately formed, and mounted in an upper core mold, and positioned in a cavity which is formed of a female mold and cavity mold, so that its lower end can reach a cavity position to form a mounting portion serving as the portion being sealed to the container body.
COPYRIGHT: (C)2008,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
