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1. 发明专利

JP2002037345A RECTANGULAR-BOTTOMED BAG WITH CUSHIONING PROPERTIES AND MANUFACTURING METHOD THEREOF 失效
公开(公告)号：JP2002037345A
公开(公告)日：2002-02-06
申请号：JP2000221120
申请日：2000-07-21
申请人： KAWAKAMI SANGYO CO LTD , KYOKUYO SIGMA KK
发明人： KAWAKAMI HAJIME , IWASAKA MASAKI , SUZUKI SHOZO
IPC分类号： B65D30/02 , B31B29/60 , B31B39/60 , B65D81/03 , B65D81/133 , B31B29/62 , B31B29/64 , B31B39/62 , B31B39/64
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing, with high productivity, a rectangular-bottomed bag belonging to a field of a cushioning envelope made of a material comprising a plastic cellular sheet lined on craft paper with the minimum heat-sealed portion of the cellular sheet and little weakness in strength. SOLUTION: The manufacturing method includes steps of: (A) preparing a material (1) comprising the plastic cellular sheet (6) stuck to a rectangular piece of craft paper (5) with one of rims (51) left and applying an adhesive (52) to the rim, (B) rolling the material (1) with the plastic cellular sheet (6) inside and forming into a cylinder (2) by the adhesive (52) on the rim, (C) press- working on the cylinder (2) thereby providing a rule (7) for forming a base of the rectangular-bottomed bag, (D) gusset-folding both sides of the cylinder to provide a bag material (3) with gussets (8), and (E) heat-sealing (9) and cutting the base to complete the rectangular-bottomed bag (4).

2. 实用新型

JPH0528626U 失效
公开(公告)号：JPH0528626U
公开(公告)日：1993-04-16
申请号：JP7612291
申请日：1991-09-20
IPC分类号： B31B39/60 , B31B29/74

3. 发明专利

JPH0467942A BAG MANUFACTURING DEVICE AND BAG MANUFACTURING METHOD 失效
公开(公告)号：JPH0467942A
公开(公告)日：1992-03-03
申请号：JP17985090
申请日：1990-07-07
申请人： SANWA KK
发明人： MORIKAWA TAKESHI
IPC分类号： A01K23/00 , B31B39/60 , B65F1/14
摘要： PURPOSE:To prevent an adhesive from adhering to a belt and make the flow smooth by feeding a polyethylene bag and a sheet overlapped together in the given direction by means of a raw material feeding belt and injection coating the edges of sheet with a water-soluble hot melt adhesive injected out an injection outlet. CONSTITUTION:A sheet provided with two layers formed with a thin polyethylene bag 9 and a tissue paper 10 of 20 g/m basis weight is fed on a belt 1 as a raw material sheet. The raw material feeding belt 1 is made of Teflon and rotates in the arrow mark direction 7 through rolls 12, 13 and 14. The position of the raw material feeding belt is sensed on the belt by phototubes 24 and 25, and only the edge sections 11 of both sides of the sheet are injection coated with a water-soluble hot melt adhesive heated and in the molten state injected out of an injection outlet 5. When the adhesive is applied, sometimes a very slight amount of adhesive may ooze out on the belt side through the sheet, and as the adhesion properties of the Teflon belt is extremely low, the adhesive is almost not adhered thereon to eliminate the troubles generated by the sheet adhered to the belt.

4. 发明专利

JPH0364387B2 失效
公开(公告)号：JPH0364387B2
公开(公告)日：1991-10-07
申请号：JP506581
申请日：1981-01-19
申请人： OJI SEITAI KK
发明人： HOSOI YUTAKA , HIGASHIJIMA MIERO
IPC分类号： B65D33/26 , B31B39/00 , B31B39/60 , B65B51/10 , B65D30/08 , B65D33/22

5. 发明专利

JPH03197033A PREPARATION OF MULTI-LAYERED PAPER BAG INTERNALLY LAMINATED WITH SYNTHETIC RESIN THIN CYLINDRICAL BAG 失效
公开(公告)号：JPH03197033A
公开(公告)日：1991-08-28
申请号：JP33729789
申请日：1989-12-26
申请人： OISHI SANGYO KK
发明人： SASAKI TAKAJI , TEJIMA KAORU
IPC分类号： B65D30/08 , B31B39/60
摘要： PURPOSE:To make it possible to perform sealing of an opening of a multi-layered paper bag even when a peeling layer is not provided between an inner layer and an outer layer by bringing a double-folded overtape wherein a hot-melt adhesive is laminated on an inner face of a composite paper into contact with an outer layer of the outside of a welded part, and sealing the opening of a heavy-duty packaging paper bag by heat sealing at a temp. of a m.p. or lower of the inner layer. CONSTITUTION:A multi-layered paper bag 11 is constituted of the innermost layer which is a synthetic resin inner layer 12, an intermediate layer 13 and an outer layer 14. An overtape 20 which is longer than the width of a multi-layered paper bag 11 forming a welded part 12A (the first heat welding) on the lower part of the inner layer 12 heated from the outside of the lower outer layer 14 of the multi-layered paper bag 11 by means of a heat seal machine is folded into a V-shape and is brought into contact with the outer surface of an opening 18 of the lower part of the multi- layered paper bag 11 and the overtape 20 and the outer layer 14 are adhered together by heating from the outside of the overtape 20 by means of the heat seal machine (the second heat welding).

6. 发明专利

JPS5818247A METHOD OF COUPLING BELTLIKE BAG MATERIAL TO CIRCULAR BAGGY CLOTH SURROUNDING SAID BAG MATERIAL 失效
公开(公告)号：JPS5818247A
公开(公告)日：1983-02-02
申请号：JP11245682
申请日：1982-06-29
申请人： WINDMOELLER & HOELSCHER
发明人： FURANKU BOSE
IPC分类号： B31B39/60 , B29C65/00 , B29C65/48 , B29C65/52 , B31B19/62 , D06H5/00 , H02G5/06

7. 发明专利

JPS5737500B2 失效
公开(公告)号：JPS5737500B2
公开(公告)日：1982-08-10
申请号：JP5752877
申请日：1977-05-18
IPC分类号： B65D30/08 , B31B39/60 , B65B51/00 , B65B51/10 , B65D33/22 , B65D75/26 , B65D75/38 , B65D75/68 , B65D77/06

8. 发明专利

JPS5567443A PREPARATION OF MULTILAYER BAG WITH FOLD 失效
公开(公告)号：JPS5567443A
公开(公告)日：1980-05-21
申请号：JP13991878
申请日：1978-11-15
申请人： CHIYODA SHIGYO , ISHIKAWA SEKIO
发明人： ISHIKAWA SEKIO
IPC分类号： B31B37/26 , B31B39/60

9. 发明专利

JPS5546958A PREPARATION OF MULTILAYER BAG WITH CREASE 失效
公开(公告)号：JPS5546958A
公开(公告)日：1980-04-02
申请号：JP11911578
申请日：1978-09-29
申请人： CHIYODA SHIGYO , ISHIKAWA SEKIO
发明人： ISHIKAWA SEKIO
IPC分类号： B31B39/26 , B31B39/60

10. 发明专利

JPS5488476A FOOD PACKING BAG FOR HIGH TEMPERATURE HEATING STERILIZATION AND ITS PREPARATION 失效
公开(公告)号：JPS5488476A
公开(公告)日：1979-07-13
申请号：JP15442877
申请日：1977-12-23
申请人： TOYO SEIKAN KAISHA LTD
发明人： TSUTSUMI YOUTAROU , ITOU SENJI , IKUSHIMA FUMIO
IPC分类号： B65D33/22 , B31B23/60 , B31B39/00 , B31B39/60 , B65B9/06 , B65D30/02 , B65D81/18 , B65D81/24

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