Systems and methods for forming laminates

Patent metadata

Field	Value
Publication number	US-9751288-B2
Application number	US-201514978127-A
Country	US
Kind code	B2
Filing date	Dec 22, 2015
Priority date	Dec 22, 2014
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A method for forming a laminate can comprise moving an initial laminate and a sacrificial web at least partially coated with an adhesive in a downstream direction. The initial laminate can comprise a base web and an interactive web comprising a retained section and a scrap section. The method also can comprise forming a compound laminate by nipping the sacrificial web and at least the scrap section of the interactive web between a raised feature of a nip roller and an opposing support surface so that the adhesive at least partially bonds the sacrificial web to the scrap section. In addition, the method can comprise separating the compound laminate into a resultant laminate, comprising the base web and at least the retained section of the interactive web, and a sacrificial laminate, comprising the sacrificial web and at least the scrap section of the interactive web.

First claim

What is claimed is:

1. A method for forming a laminate, the method comprising:
moving an initial laminate and a sacrificial web in a downstream direction, the initial laminate comprising a base web and an interactive web, the interactive web comprising a retained section and a scrap section, and the sacrificial web being at least partially coated with an adhesive;
receiving the sacrificial web and the initial laminate between a nip roller and an opposing support surface, the nip roller comprising a raised feature and a recess;
forming a compound laminate comprising the sacrificial web and the initial laminate, the forming the compound laminate comprising nipping the sacrificial web and at least the scrap section of the interactive web between the raised feature of the nip roller and the opposing support surface so that the adhesive at least partially bonds the sacrificial web to the scrap section; and
separating the compound laminate into a resultant laminate and a sacrificial laminate, the resultant laminate comprising the base web and at least the retained section of the interactive web and the sacrificial laminate comprising the sacrificial web and at least the scrap section of the interactive web.

2. The method of claim 1 , wherein the separating the compound laminate comprises moving the sacrificial web away from the resultant laminate.

3. The method of claim 1 , wherein at least the retained section of the interactive web is at least partially bonded to the base web prior to the receiving the sacrificial web and the initial laminate between the nip roller and the opposing support surface.

4. The method of claim 1 , further comprising aligning the recess of the nip roller with at least a portion of the retained section of the interactive web during the nipping the sacrificial web and at least the scrap section of the interactive web.

5. The method of claim 1 , wherein the interactive web comprises a plurality of retained sections and the nip roller comprises a plurality of recesses, the recesses of the plurality of recesses being aligned with at least a portion of respective retained sections of the plurality of retained sections during the nipping the sacrificial web and at least the scrap section of the initial laminate.

6. The method of claim 1 , wherein the interactive web comprises a plurality of scrap sections and the nip roller comprises a plurality of raised features, and the nipping the sacrificial web and at least the scrap section of the interactive web comprises engaging the raised features of the plurality of raised features with respective scrap section of the plurality scrap sections so that the adhesive at least partially bonds the sacrificial web to the plurality of scrap sections.

7. The method of claim 1 , further comprising applying the adhesive to the sacrificial web so that the sacrificial web is generally homogenously coated with adhesive prior to the receiving the sacrificial web and the initial laminate between a nip roller and an opposing support surface.

8. The method of claim 1 , further comprising applying the adhesive to the sacrificial web in an adhesive pattern prior to the receiving the sacrificial web and the initial laminate between a nip roller and an opposing support surface, wherein the adhesive pattern is at least partially aligned with the scrap section during the receiving the sacrificial web and the initial laminate between a nip roller and an opposing support surface.

9. The method of claim 1 , wherein the nip roller is a first nip roller and the opposing support surface is a second nip roller disposed opposite to the first nip roller.

10. The method of claim 1 , wherein the moving the initial laminate and the sacrificial web in the downstream direction comprises moving at least the initial laminate along an outer surface of a central drum, the nip roller is disposed adjacent the central drum with the initial laminate and the sacrificial web disposed between the outer surface of the central drum and the nip roller, and the outer surface of the central drum comprises the opposing support surface.

11. The method of claim 1 , wherein the separating the compound laminate into the resultant laminate and the sacrificial laminate comprises moving the sacrificial web in an at least partially transverse direction with respect to the downstream direction while moving the resultant laminate in the downstream direction from the nip roller.

12. The method of claim 11 , further comprising moving the compound laminate in the downstream direction from the nip roller to a nip roller prior to the separating the compound laminate into the resultant laminate and the sacrificial laminate, wherein the moving the sacrificial web in the at least partially transverse direction comprises moving the sacrificial web along a peel-away roller that is spaced apart from the nip roller in the downstream direction.

13. A system for forming a laminate, the system comprising:
a nip roller comprising a raised feature and a recess;
an opposing support surface disposed opposite the nip roller, the nip roller and the opposing support surface being for receiving an initial laminate and a sacrificial web between the nip roller and the opposing support surface, the initial laminate comprising a base web and an interactive web, the interactive web comprising a retained section and a scrap section, and the sacrificial web being at least partially coated with an adhesive, wherein the raised portion of the nip roller is for being generally aligned with the scrap section of the interactive web so that the sacrificial web is nipped to at least a portion of the scrap section; and
a peel-away apparatus for separating the sacrificial web and the scrap section from the base web and the retained section.

14. The system of claim 13 , wherein the peel-away apparatus is for moving the sacrificial web away from the resultant laminate.

15. The system of claim 13 , wherein at least a portion of the recess of the nip roller is for being aligned with at least a portion of the retained section of the interactive web.

16. The system of claim 13 , wherein the nip roller comprises a plurality of recesses for being aligned with respective retained sections of a plurality of retained sections of the interactive web.

17. The system of claim 13 , wherein the nip roller comprises a plurality of raised features for engaging respective scrap sections of a plurality of scrap sections of the interactive web.

18. The system of claim 13 , further comprising an adhesive applicator engaging the sacrificial web for applying the adhesive to the sacrificial web so that the sacrificial web is generally homogenously coated with adhesive.

19. The system of claim 13 , further comprising an adhesive applicator engaging the sacrificial web for applying the adhesive to the sacrificial web in an adhesive pattern, wherein the adhesive pattern is for being at least partially aligned with the scrap section of the interactive web.

20. The system of claim 13 , wherein the nip roller is a first nip roller and the opposing support surface is a second nip roller disposed opposite to the first nip roller.

21. The system of claim 13 , further comprising a central drum for moving at least the initial laminate in a downstream direction, wherein the nip roller is disposed adjacent the central drum, the initial laminate and the sacrificial web are for being disposed between an outer surface of the central drum and the nip roller, and the outer surface of the cent

Assignees

• Graphic Packaging Int Inc

Inventors

• Walsh Joseph C

Classifications

• B32B2367/00

  Polyesters, e.g. PET, i.e. polyethylene terephthalate · CPC title

• B32B38/145

  Printing · CPC title

• B32B2439/70

  Food packaging · CPC title

• B32B37/203

  One or more of the layers being plastic · CPC title

• B32B15/18

  comprising iron or steel {(B32B15/011, B32B15/012 and B32B15/013 take precedence)} · CPC title