Tack free edge for pressure sensitive adhesive web

1. A continuous roll of web material comprising a continuous carrier sheet, a continuous pragmatic sheet comprising at least one imaging layer and a continuous adhesive layer wherein said adhesive layer is between said carrier sheet and said pragmatic sheet, said adhesive layer more strongly adheres to said pragmatic sheet and said pragmatic sheet is narrower than said carrier sheet wherein said pragmatic sheet comprises at least one imaging layer wherein said continuous roll of web material is at least 10 meters in length, and a tack-free edge zone on at least one edge of said carrier sheet functions to prevent adhesive buildup in edge-guided printers wherein said carrier sheet has a thickness of between 75 and 225 μm.

2. The web material of claim 1 wherein said pragmatic sheet is centered on said carrier sheet.

3. The web material of claim 2 wherein said carrier sheet is between 0.6 and 10 mm wider on each side than said pragmatic sheet.

4. The web material of claim 1 wherein said pragmatic sheet is not centered on said carrier sheet.

5. The web material of claim 4 wherein said carrier sheet is between 0.6 and 10 mm wider on one side than said pragmatic sheet.

6. The web material of claim 1 wherein said pragmatic sheet has a thickness of between 40 and 75 μm.

7. The web material of claim 1 wherein said carrier sheet comprises cellulose fiber paper.

8. The carrier sheet of claim 7 wherein said paper has an edge penetration of less than 8 mm.

9. The web material of claim 1 wherein said carrier sheet has an optical transmission of less than 20 percent.

10. The web material of claim 1 wherein said carrier sheet has a tensile strength of greater than 120 MPa.

11. The web material of claim 1 wherein said carrier sheet has a resistivity of less than 10 11 ohms/square.

12. The web material of claim 1 wherein said carrier sheet has a silicone coating on the side towards the adhesive.

13. The web material of claim 1 wherein said adhesive layer further comprises an antistat.

14. The web material of claim 1 wherein said adhesive layer is a solvent coated polymer.

15. The web material of claim 1 wherein said pragmatic layer comprises oriented polyolefin or oriented polyester polymer.

16. The web material of claim 1 wherein said pragmatic sheet comprises an oriented polymer having a voided layer and at least one layer comprising titanium dioxide between said voided layer and the surface layer.

17. The web material of claim 1 wherein said carrier sheet comprises a cellulose fiber paper and a biaxially oriented polymer sheet.

18. The web material of claim 17 wherein said biaxially oriented polymer sheet is below said paper.

19. The web material of claim 16 wherein said at least one layer comprising titanium dioxide contains at least 4% by weight of titanium dioxide.

20. The web material of claim 1 wherein said carrier sheet has a coefficient of friction between 0.20 and 0.60.

21. The web material of claim 1 wherein said carrier sheet comprises an oriented polymer having a voided layer.

22. The web material of claim 1 wherein said pragmatic sheet comprises cellulose paper.

23. The web material of claim 1 wherein said pragmatic sheet comprises polymer.

24. The web material of claim 1 wherein said imaging layer comprises unexposed silver halide.

25. The web material of claim 1 wherein said imaging layer comprises ink jet receiving layer.

26. The web material of claim 1 wherein said imaging layer comprises thermal dye receiving layer.

27. The web material of claim 1 wherein said imaging layer comprises electrophotographic receiving layer.

28. The web material of claim 1 wherein said imaging layer comprises pigment ink receiving layer.

29. The web material of claim 1 wherein said carrier sheet is between 0.6 and 10 mm wider on one side than said carrier sheet.

30. The web material of claim 1 wherein said web is continuous in the machine direction.