Method of making resealable multi-ply labels
View Patent ↗Resealable multi-ply labels are made from webs along an inline press that include a base label ply and an overlaminate for capturing onserts between them. The base label plies carry an adhesive layer on the bottom surface for mounting the resealable multi-ply labels to articles. The base plies each include a hinge area, an attachment area, a tab area, and an intermediate area separating the hinge area from the attachment area. The overlaminates form permanent bonds with both the hinge areas and the tab areas of the base plies and form reusable bonds with the attachment areas of the base plies. The permanently bonded tab areas of the base plies provide access for releasing the overlaminates from the attachment areas of the base plies and exposing the onserts.
1. A method of making a succession of resealable multi-ply labels comprising
advancing a base web, including a base ply with an adhesive backing carried on a release liner, along an inline press,
deadening the adhesive backing on the base ply within a succession of tab areas along the base ply,
cutting through the base ply for separating the tab areas from adjacent attachment areas along the base ply,
advancing an overlaminate web having an adhesive backing along the inline press,
applying a release layer to the attachment areas of the base ply while excluding the release layer from the tab areas and hinge areas of the base ply,
laminating the overlaminate web to the base web capturing printable panels between the overlaminate web and the base ply forming permanent bonds with both the tab areas and the hinge areas of the base ply and forming reusable bonds with the attachment areas of the base ply, and
cutting through the overlaminate web to separate individual resealable multi-ply labels carried along the inline press on the release liner.
2. The method of claim 1 including a step of delaminating the base ply from the release liner in advance of the step of deadening the adhesive backing for exposing the adhesive backing on the base ply within the tab areas of the base ply.
3. The method of claim 2 including a step of re-laminating the base ply to the release liner after the step of deadening for supporting the base ply on the release liner.
4. The method of claim 1 including steps of advancing an intermediate web along the inline press and arranging the intermediate web into the printable panels.
5. The method of claim 4 including a step of applying the printable panels to one of the base web and the overlaminate web in advance of the step of laminating the overlaminate web to the base web.
6. The method of claim 4 in which the step of arranging the intermediate web into the printable panels includes trimming the intermediate web and folding the intermediate web into a stack of panels.
7. A method of making a succession of resealable multi-ply labels comprising
advancing a base web, including a base ply with an adhesive backing carried on a release liner, along an inline press,
deadening the adhesive backing on the base ply within a succession of tab areas along the base ply,
cutting through the base ply for separating the tab areas from adjacent attachment areas along the base ply,
advancing an overlaminate web along the inline press,
laminating the overlaminate web to the base web capturing printable panels between the overlaminate web and the base ply forming permanent bonds with both the tab areas and the hinge areas of the base ply and forming reusable bonds with the attachment areas of the base ply, and
cutting through the overlaminate web, the base ply, and the printable panels to separate individual resealable multi-ply labels carried along the inline press on the release liner.
8. The method of claim 7 in which the step of cutting through the overlaminate web and the base ply includes intersecting the cuts through the base ply that separate the tab areas from the attachment areas for also separating the tab areas from a remainder of the base ply.
9. The method of claim 7 in which the overlaminate web includes an adhesive backing, and including a step of applying a release layer to the attachment areas of the base ply while excluding the release layer from the tab areas and the hinge areas of the base label ply.
10. The method of claim 9 in which the printable panels include a face panel, and the step of laminating includes forming permanent bonds between the overlaminate web and face panel of the printable panels.
11. The method of claim 10 in which the printable panels include additional panels that are pivotally linked to the face panel.
12. The method of claim 11 in which the printable panels are preprinted in a separate off-line operation.
13. The method of claim 10 in which the step of applying a release layer includes applying a release layer to intermediate areas of the base ply between the hinge areas and the attachment areas of the base ply.
14. The method of claim 13 including a step of printing on the intermediate areas of the base ply.
15. The method of claim 7 including steps of:
delaminating the base ply from the release liner in advance of the step of deadening the adhesive backing for exposing the adhesive backing on the base ply within the tab areas of the base ply, and
re-laminating the base ply to the release liner after the step of deadening for supporting the base ply on the release liner.
16. The method of claim 7 including steps of:
advancing an intermediate web along the inline press,
arranging the intermediate web into the printable panels, and
applying the printable panels to one of the base web and the overlaminate web in advance of the step of laminating the overlaminate web to the base web.
17. The method of claim 16 in which the step of arranging the intermediate web into the printable panels includes trimming the intermediate web and folding the intermediate web into a stack of panels.