Reinforced carton and methods of making carton blanks

• US 8,226,794 B2
• Filed: 08/21/2009
• Issued: 07/24/2012
• Est. Priority Date: 02/23/2007
• Status: Expired due to Fees

• Current Assignee: Graphic Packaging International Incorporated
• Original Assignee: Graphic Packaging International Incorporated
• Inventors: Fogle, James C.
• Primary Examiner(s): GRAY, LINDA LAMEY
• Application Number:
  US12/545,399
• Publication Number:
  US 20100000672A1
• Time in Patent Office: 1,068 Days
• Field of Search: 156/250, 156/252, 156/263, 156/264, 156/270, 156/543, 156/556, 156/574, 156/577, 156/253, 156/257, 156/268, 156/525, 156/526, 156/575, 156/324, 156/324.4, 427/428.01, 427/428.11
• US Class Current: 156/324
• CPC Class Codes: B31B 2105/001 made from laminated webs, e.g. including laminating the webs
• CPC Class Codes: B31B 50/813 obliquely to the direction of movement of the webs or blanks or in an irregular path
• CPC Class Codes: B65D 5/5445 for dividing a tubular body into separate parts
• CPC Class Codes: B65D 5/566 Linings made of relatively rigid sheet material, e.g. carton B65D5/0281 and B65D5/58 takes precedence; combined with a flexible lining B65D5/56, B65D5/60; for thermal insulating purposes B65D81/3858; for shock absorbing purposes B65D81/1275
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor
• CPC Class Codes: Y10T 156/1057 Subsequent to assembly of laminae
• CPC Class Codes: Y10T 156/1085 One web only

Abstract

A carton is constructed from a multi-ply blank including an exterior blank and an interior blank. Adhesive is applied to the exterior blank using an applicator capable of transverse movement and/or rotation.

Claims

1. A method of forming a multi-ply blank, comprising:

moving a first blank along a first direction, wherein the first blank comprises a first tear strip having at least one first oblique section;

applying adhesive to the first blank with an applicator, wherein the applicator is moved along the surface of the first blank in a second direction that is transverse with respect to the first direction as the adhesive is applied, the applicator being moved from a first position to a second position, and the applying adhesive to the first blank comprises applying adhesive tape to the first oblique section of the tear strip; and

joining a second blank to the first blank to form a multi-ply blank.

2. The method of claim 1, wherein the applicator includes a roller.

3. The method of claim 1, wherein the adhesive is adhesive tape.

4. The method according to claim 1, wherein the applicator is rotated about an axis as adhesive is applied to the first blank.

5. The method of claim 1, wherein the second blank comprises a second tear strip having at least one second oblique section, and wherein joining the second blank to the first blank comprises adhering the second oblique section to the first oblique section.

6. The method according to claim 1, further comprising applying longitudinal strips of adhesive to the first blank.

7. The method according to claim 1, further comprising forming at least one line of disruption in the multi-ply blank after joining the first and second blanks.

17. The method of claim 5, wherein the first tear strip has at least one first longitudinal section, and wherein applying adhesive to the first blank comprises applying adhesive tape to the first longitudinal section of the tear strip.

18. The method of claim 17, wherein the second tear strip has a second longitudinal section, and wherein joining the second blank to the first blank comprises adhering the second longitudinal section to the first longitudinal section.

19. The method of claim 17, wherein the first longitudinal section is adjacent the first oblique section.

20. The method of claim 18, wherein the first oblique section is adjacent the second longitudinal section.

21. The method of claim 18, wherein the second longitudinal section is adjacent the second oblique section.

8. A method of forming a multi-ply blank, comprising:

obtaining a first blank, wherein the first blank comprises a first tear strip having at least one first oblique section;

moving the first blank in a first direction;

applying adhesive to the first blank with an applicator, wherein the applicator is moved along the surface of the first blank in a second direction that is transverse relative to the first direction and rotated as the adhesive is applied, the applicator being moved from a first position to a second position, and the applying adhesive to the first blank comprises applying adhesive tape to the first oblique section of the tear strip; and

joining a second blank to the first blank to form a multi-ply blank.

9. The method of claim 8, wherein the applicator includes a roller.

10. The method of claim 8, wherein the adhesive is adhesive tape.

11. The method of claim 8, wherein the adhesive is glue.

12. The method according to claim 8, wherein the applicator is rotated about a vertical axis as adhesive is applied to the first blank.

13. The method according to claim 8, wherein the second direction is transverse to a longitudinal axis of the blank, and a vertical axis is orthogonal relative to the first and second directions.

14. The method of claim 8, wherein the second blank comprises a second tear strip having at least second one oblique section, and wherein joining the second blank to the first blank comprises adhering the second oblique section to the first oblique section.

15. The method according to claim 8, further comprising applying longitudinal strips of adhesive to the first blank.

16. The method according to claim 8, further comprising forming at least one line of disruption in the multi-ply blank after joining the first and second blanks.