Title:
咬合具付袋の製造方法及びその製造装置
Document Type and Number:
Japanese Patent JP4787766
Kind Code:
B2
Abstract:
A tape 3, 4 with a zipper member and a bag film 5,6 are continuously moved by rotation of a rotary drum 32 while being overlaid with each other such that the tape 3, 4 travels in a tape introducing groove 33 for a tape with a zipper member, the groove formed along a circumferential direction of the rotary drum 32. The tape 3, 4 with the zipper member is continuously welded to the bag film 5, 6 on a circumferential surface of the rotary drum 32 by a seal bar 35 that has a welding surface 34 in a curved shape corresponding to a circumferential surface shape of the rotary drum 32. The whole tape 3, 4 with the zipper member is accommodated in the tape introducing groove 33 for the tape with the zipper member and a seal surface of a tape body 31, 41 is adapted to be substantially flush with the circumferential surface of the rotary drum 32, so that heat applied from the seal bar 35 to the tape 3, 4 with the zipper member is restrained from transferring to the rotary drum 32.
Inventors:
Shuichi Goto
Kenichi Tanaka
Kenichi Tanaka
Application Number:
JP2006552953A
Publication Date:
October 05, 2011
Filing Date:
January 12, 2006
Export Citation:
Assignee:
Idemitsu Unitech Co., Ltd.
International Classes:
B31B1/90; B31B50/64
Domestic Patent References:
| JPH04113496A | 1992-04-14 | |||
| JP2002113796A | 2002-04-16 | |||
| JP2000226042A | 2000-08-15 | |||
| JP2006111277A | 2006-04-27 | |||
| JP2003155045A | 2003-05-27 | |||
| JP3640437A |
Attorney, Agent or Firm:
Intellectual Property Office
Kinoshita Minoru
Kanji Nakayama
Tsuyoshi Ishizaki
Kinoshita Minoru
Kanji Nakayama
Tsuyoshi Ishizaki