Method of splicing a pressure sensitive laminate
AssigneeS. D. Warren Company
InventorsRichard L. Fournier, Robert C. Margiloff
Life of this patent
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Abstract
Disclosed is a novel process for splicing webs of pressure sensitive laminate material. When webs of pressure sensitive laminates are spliced by conventional methods and wound into rolls, the resultant splices must be located and removed when the roll is later converted into pressure sensitive products. The novel splice is achieved by eliminating the top tape used in a conventional splice and overlapping a face sheet of one laminate web over the other laminate web to join the webs. For many processes, this novel splice is printable and does not have to be edited out, and it is at least as strong as those made with tapes. Also disclosed is a novel spliced pressure sensitive laminate.
Claims12
A method of splicing a first pressure sensitive laminate to a second pressure sensitive laminate, wherein each pressure sensitive laminate comprises, from top to bottom, a face sheet, a coating of pressure sensitive adhesive permanently adhered to the face sheet, and a release liner, the method comprising:
- A. making a first cut through the entire thickness of the first laminate across its entire width;
- B. making a second cut through only the release liner of the first laminate across its entire width parallel to the first cut so as to leave a portion of the face sheet extending beyond the release liner;
- C. making a third cut through the entire thickness of the second laminate across its entire width so as to permit continuous abutment of the cut ends of the first and second release liners;
- D. butting together the cut ends of the first and second release liners in a continuous abutment across their entire widths;
- and
- E. pressing the part of the first face sheet which extends beyond the first release liner onto the top of the second face sheet to permanently adhere the first and second face sheets together.
A spliced pressure sensitive laminate comprising:
- A. a first face sheet with a coating of pressure sensitive adhesive permanently adhered to its bottom and a cut end;
- B. a first release liner on the top of which is temporarily adhered the first face sheet by the pressure sensitive adhesive, the first release liner having a cut end parallel to and shorter than the cut end of the first face sheet;
- C. a second face sheet with a coating of pressure sensitive adhesive permanently adhered to its bottom and temporarily adhering it to the top of a second release liner, the second face sheet and second release liner having cut ends parallel to the cut end of the first release liner;
- D. the cut end of the first release liner being abutted against the cut end of the second release liner;
- E. the cut end of the first face sheet overlapping the cut end of the second face sheet and permanently adhered to it by the pressure sensitive adhesive.
Dependencies are inferred from the claim text.