Imaging element with biaxially oriented face side with non glossy surface

• US 6,114,078 A
• Filed: 12/24/1997
• Issued: 09/05/2000
• Est. Priority Date: 12/24/1997
• Status: Expired due to Term

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Bourdelais, Robert P., Aylward, Peter T., Gula, Thaddeus S., Haydock, Douglas N.
• Primary Examiner(s): Schilling, Richard L.
• Application Number:
  US08/998,358
• Time in Patent Office: 986 Days
• Field of Search: 430/536, 430/538, 430/950, 430/523, 430/201, 430/200, 430/496, 156/219, 156/279, 347/106
• US Class Current: 430/201
• CPC Class Codes: B41M 2205/32 Thermal receivers
• CPC Class Codes: B41M 5/41 Base layers supports or substrates
• CPC Class Codes: B41M 5/508 Supports
• CPC Class Codes: B41M 5/5254 characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
• CPC Class Codes: G03C 1/76 Photosensitive materials characterised by the base or auxiliary layers
• CPC Class Codes: G03C 1/79 Macromolecular coatings or impregnations therefor, e.g. varnishes
• CPC Class Codes: G03G 5/10 Bases for charge-receiving or other layers
• CPC Class Codes: Y10S 430/151 Matting or other surface reflectivity altering material
• CPC Class Codes: Y10T 156/1039 Surface deformation only of sandwich or lamina [e.g., embossed panels]

Abstract

The invention relates to an imaging element comprising a laminated base comprising a layer of biaxially oriented film sheet adhered to the top surface of a base wherein said laminated base has a surface roughness average of between about 0.5 to 2.5 μm

Claims

1. An imaging element comprising silver halide photosensitive materials and a laminated base comprising a layer of biaxially oriented polymer film sheet adhered to the top surface of a base wherein said laminated base has a top surface layer roughness average of between about 0.5 to 2.5 μ

m.

2. The imaging element of claim 1 wherein said surface roughness is in a random pattern.

3. The imaging element of claim 1 wherein said surface roughness is in an ordered pattern.

4. The imaging element of claim 1 wherein the layer on the top surface of the biaxially oriented sheet comprises a material selected from the group consisting of titanium dioxide, silica, talc, calcium carbonate, barium sulfate, kaolin, and mixtures thereof.

5. The imaging element of claim 1 wherein the top surface layer further comprises inorganic particulate materials having a size between 0.2 and 10.0 μ

m.

6. The imaging element of claim 1 wherein the layer on the top surface of the biaxially oriented sheet comprises block copolymers of polypropylene and polyethylene.

7. The element of claim 1 wherein said base comprises cellulose fiber paper and said surface roughness is imparted by the surface roughness of the paper base.

8. The imaging element of claim 1 further comprising a biaxially oriented polymer film sheet adhered to the lower side of said base.

9. The imaging element of claim 1 wherein said element has a surface roughness of substantialy zero for a spatial frequency greater than 1200 μ

m.

10. The imaging element of claim 1 wherein said base comprises paper.

20. The imaging element of claim 1 wherein said base comprises cellulose fiber paper.

23. The imaging element of claim 1 wherein said biaxially oriented polymer film sheet on the top of said base comprises polypropylene.

11. A method of forming an imaging element comprising providing a base material and laminating a biaxially oriented polymer sheet to said base material wherein the top surface of said sheet has a surface roughness average between 0.5 and 2.5 μ

m and applying image forming materials to said top surface layer and further comprising laminating a biaxially oriented polymer sheet to the bottom of said base material.

12. The method of claim 11 wherein said laminating is carried out with a melt extruded polyolefin adhesive.

13. The method of claim 11 wherein said top surface has an exposed surface that comprises a layer of particles in a nonoriented polymer matrix that has been coated onto said biaxially oriented sheet.

14. The method of claim 11 wherein said top surface layer has an exposed surface that comprises a layer of particles in the surface layer of the biaxially oriented film.

15. The method of claim 13 wherein said particles comprise inorganic particles.

16. The method of claim 14 wherein said particles comprise inorganic particles.

17. The method of claim 11 wherein said top surface has an exposed surface that comprises an embossed surface.

18. The method of claim 11 wherein said surface is melt cast against a roller surface by applying a polymer layer to the biaxially oriented polymer sheet.

19. The method of claim 18 wherein said polymer comprises polyolefin or polyester.

21. The method of claim 11 wherein said base material comprises cellulose fiber paper.

22. The method of claim 11 wherein said image forming materials comprise at least one layer of photosensitive silver halide grains and dye forming coupler.

25. An imaging element comprising a laminated base comprising a layer of biaxially oriented polymer film sheet adhered to the top surface of a base wherein said laminated base has a top surface layer roughness average of between about 0.5 to 2.5 μ

m and a biaxially oriented polymer film sheet adhered to the lower side of said base.

24. The imaging element of claim 26 wherein said laminated base further comprises a biaxially oriented film on the bottom of said base said biaxially oriented film sheet on the bottom of said base comprises polypropylene.

26. The imaging element of claim 25 wherein said surface roughness is in a random pattern.

27. The imaging element of claim 25 wherein said surface roughness is in an ordered pattern.

28. The imaging element of claim 25 wherein the layer on the top surface of the biaxially oriented sheet comprises a material selected from the group consisting of titanium dioxide, silica, talc, calcium carbonate, barium sulfate, kaolin, and mixtures thereof.

29. The imaging element of claim 25 wherein the top surface layer further comprises inorganic particulate materials having a size between 0.2 and 10.0 μ

m.

30. The imaging element of claim 25 wherein the layer on the top surface of the biaxially oriented sheet comprises block copolymers of polypropylene and polyethylene.

31. The imaging element of claim 25 further comprising at least one layer of silver halide photosensitive materials and dye forming coupler.

32. The imaging element of claim 25 further comprising at least one layer comprising thermal or ink jet image receiving materials.

33. The imaging element of claim 25 wherein said element has a surface roughness of substantially zero for a spatial frequency greater than 1200 μ

m.

34. The imaging element of claim 25 wherein said base comprises paper.

35. The element of claim 25 wherein said base comprises cellulose fiber paper and said surface roughness is imparted by the surface roughness of the paper base.

36. The imaging element of claim 25 wherein said biaxially oriented polymer film sheet on the top of said base comprises polypropylene.

37. The imaging element of claim 36 wherein said biaxially oriented film sheet on the bottom of said base comprises polypropylene.