IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0559704
(2000-04-27)
|
등록번호 |
US-8317671
(2012-11-27)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Graphic Packaging International, Inc.
|
대리인 / 주소 |
Womble Carlyle Sandridge & Rice, LLP
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
54 |
초록
▼
A method of making reinforced paperboard cartons comprises the steps of advancing a web of paperboard along a path and progressively laminating at least one ribbon of reinforcing material to the advancing web of paperboard. The ribbon of reinforcing material, which also may be paperboard, has a widt
A method of making reinforced paperboard cartons comprises the steps of advancing a web of paperboard along a path and progressively laminating at least one ribbon of reinforcing material to the advancing web of paperboard. The ribbon of reinforcing material, which also may be paperboard, has a width less than the width of the web of paperboard and is applied with adhesive at a selected location across the width of the web. The web and its laminated ribbon are cut into sheets of a predetermined size and the sheets are die-cut and scored with fold lines to form carton blanks. The carton blanks are subsequently formed into cartons for receiving articles, the laminated reinforcing material providing reinforcement in selected portions of the cartons. Multiple ribbons and multiple layers of ribbons may be laminated to the web in respective selected locations to provide reinforcement in more than one portion of the cartons. Reinforced cartons and carton blanks made by the method also are provided.
대표청구항
▼
1. A method of making a paperboard carton blank to be folded to form a carton having a top wall, a bottom wall, and two side walls, the carton having an inside and an outside, the method comprising the steps of: (a) advancing a web of noncorrugated paperboard along a path, the web of noncorrugated p
1. A method of making a paperboard carton blank to be folded to form a carton having a top wall, a bottom wall, and two side walls, the carton having an inside and an outside, the method comprising the steps of: (a) advancing a web of noncorrugated paperboard along a path, the web of noncorrugated paperboard having a first surface which will be on the inside of the carton when the blank is folded to form the carton, a width, and longitudinally extending panel portions that will each become a plurality of panels, the longitudinally extending panel portions being separated by longitudinal fold lines;(b) laminating at least a first ribbon and a second ribbon of reinforcing material to the first surface of the advancing web of noncorrugated paperboard, the first ribbon and the second ribbon having a width less than the width of the web of noncorrugated paperboard, the first ribbon being positioned on, and adhered to, substantially all of, but not beyond, a first longitudinally extending panel portion of the web of noncorrugated paperboard, and the second ribbon being positioned on, and adhered to, substantially all of, but not beyond, a second longitudinally extending panel portion of the web, the first ribbon and the second ribbon not extending across the longitudinal fold lines; and(c) cutting the web of noncorrugated paperboard and the laminated first ribbon and second ribbon across their length into a carton blank having panels corresponding to the top wall, the bottom wall, and the two side walls of the carton, whereby the first ribbon and the second ribbon are positioned on the inside of the carton when the carton blank is folded to form the carton, and reinforce the carton blank. 2. The method of claim 1 wherein at least one of the first ribbon or the second ribbon of reinforcing material comprises paperboard. 3. The method of claim 2 and wherein at least one of the first ribbon or the second ribbon of paperboard comprises paperboard trim. 4. The method of claim 2 wherein at least one of the first ribbon or the second ribbon of paperboard comprises paperboard cull. 5. The method of claim 1 and wherein step (b) comprises advancing the first ribbon and the second ribbon of reinforcing material along paths, applying adhesive to the first ribbon and the second ribbon of reinforcing material, and bringing the first ribbon and the second ribbon into contact with the web to adhere the first ribbon and the second ribbon to the web. 6. The method of claim 1 wherein at least a first edge panel portion extends along opposed edges of the noncorrugated paperboard web and wherein the first ribbon of reinforcing material is positioned within the first edge panel portion. 7. The method of claim 1 wherein the web of noncorrugated paperboard has opposed edges wherein the first panel portion extends along the web intermediate the opposed edges, the first ribbon of reinforcing material being applied within the first panel portion. 8. The method of claim 1 wherein an additional ribbon of reinforcing material is applied atop the first ribbon or the second ribbon of reinforcing material to form multiple layers of reinforcing material. 9. A method of making a paperboard carton having a top wall, a bottom wall, and two side walls, the carton having selectively reinforced panels, said method comprising the steps of (a) advancing a web of noncorrugated paperboard along a path, the web of noncorrugated paperboard having a width and longitudinally extending panel portions that will each become a plurality of panels, the longitudinally extending panel portions being separated by longitudinal fold lines;(b) progressively applying and adhering at least a first ribbon and a second ribbon of reinforcing material to the advancing web of noncorrugated paperboard, the first ribbon and the second ribbon having a width less than the width of the web of noncorrugated paperboard, the first ribbon being positioned to overlie and adhere to substantially all of, but not beyond, a first selected longitudinally extending panel portion of the web, and the second ribbon being positioned to overlie and adhere to substantially all of, but not beyond, a second selected longitudinally extending panel portion of the web, the first ribbon and the second ribbon not extending across the longitudinal fold lines;(c) cutting the web of noncorrugated paperboard to form a carton blank having panels corresponding to the top wall, the bottom wall, and the two side walls of the carton; and(d) forming the blank into the carton for receiving articles, the carton having an inside and an outside, the first ribbon and the second ribbon of reinforcing material reinforcing the carton and being positioned on the inside of the carton. 10. The method of claim 9 wherein at least one of the first ribbon or the second ribbon of reinforcing material comprises noncorrugated paperboard. 11. The method of claim 9 wherein step (b) further comprises advancing the first ribbon and the second ribbon of reinforcing material along a path, applying adhesive to the advancing first ribbon and the advancing second ribbon, and progressively bringing the first ribbon and the second ribbon into engagement with the advancing web of noncorrugated paperboard to adhere the first ribbon and the second ribbon to the web. 12. The method of claim 9 wherein the longitudinally extending panel portions include a first edge panel portion and a second edge panel portion, the first edge panel portion and the second edge panel portion extending along opposed edges of the web of paperboard and wherein at least the first ribbon is positioned to overlie substantially all of, but not beyond, the first edge panel portion. 13. The method of claim 9 wherein step (b) further comprises applying and adhering atop the first ribbon or the second ribbon of reinforcing material an additional ribbon of reinforcing material to form a double thickness of reinforcing material. 14. The method of claim 9 wherein the longitudinal fold lines include a first longitudinal fold line and a second longitudinal fold line, wherein an intermediate longitudinally extending panel portion extends between the first longitudinal fold line and the second longitudinal fold line, and wherein the first ribbon is positioned to overlie substantially all of, but not beyond, the intermediate panel portion. 15. The method of claim 9 further comprising the step of printing indicia on at least one of the first ribbon or the second ribbon of reinforcing material, the indicia being visible from the inside of the carton formed in step (d). 16. The method of claim 15 wherein the indicia is printed on at least one of the first ribbon or the second ribbon of reinforcing material before being applied and adhered to the web of noncorrugated paperboard in step (b). 17. The method of claim 9 further comprising the step of scoring fold lines to separate the longitudinally extending panel portions of the web of noncorrugated paperboard. 18. The method of claim 17 wherein the first ribbon or the second ribbon of reinforcing material has an edge and wherein the step of scoring fold lines includes forming at least one fold line adjacent the edge of the first ribbon or the second ribbon. 19. The method of claim 9 where at least one of the first ribbon or the second ribbon of reinforcing material comprises paperboard trim. 20. The method of claim 9 wherein at least one of the first ribbon or the second ribbon of reinforcing material comprises paperboard cull. 21. The method of claim 9, wherein the longitudinal fold lines are on the same side of the web as the first ribbon and the second ribbon. 22. The method of claim 9, wherein step (b) includes progressively applying and adhering at least a third ribbon to the advancing web, the third ribbon being positioned not to overlie any of the longitudinal fold lines, the third ribbon having a first portion adhered to the web and a second portion not adhered to the web, whereby the second portion of the third ribbon is capable of being folded in a direction away from the web. 23. The method of claim 22, wherein the first portion and the second portion of the third ribbon are divided by a fold line. 24. The method of claim 22, wherein the first portion and the second portion of the third ribbon are divided by a longitudinally extending fold line, and the second portion of the third ribbon extends between the fold line and one edge of the third ribbon. 25. The method of claim 22, wherein at least a third ribbon is positioned on the inside of the carton.
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