Claims
- 1. A photothermographic material comprising:
a substrate; at least one image-forming layer, which is disposed on a surface of the substrate and comprises at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder; at least one surface-protective layer, which is disposed on a side of the substrate on which the at least one image-forming layer is disposed; and at least one back-surface protective layer, which is disposed on a back surface of the substrate opposite to the surface on which the at least one image-forming layer is disposed, wherein at least one of the surface-protective layer and the back-surface protective layer satisfies the following formula (1):B/A ≧1 Formula (1)wherein A represents a dynamic friction factor measured at a sliding velocity of 100 mm/min, and B represents a dynamic friction factor measured at a sliding velocity of 2000 mm/min.
- 2. The photothermographic material of claim 1, wherein a value of B/A in formula (1) is in a range of 1 to 5.
- 3. The photothermographic material of claim 1, wherein a value of B/A in formula (1) is in a range of 1 to 3.
- 4. The photothermographic material of claim 1, wherein a value of B/A in formula (1) is in a range of 1 to 2.
- 5. The photothermographic material of claim 1, wherein the surface-protective layer comprises a binder that comprises at least one selected from the group consisting of gelatin, hydrophobic polymer latex, a water-soluble polymer, and a hydrophobic polymer.
- 6. The photothermographic material of claim 1, wherein the back-surface protective layer comprises a binder that comprises at least one selected from the group consisting of gelatin, hydrophobic polymer latex, a water-soluble polymer, and a hydrophobic polymer.
- 7. The photothermographic material of claim 6, wherein the binder contained in the back-surface protective layer is gelatin.
- 8. The photothermographic material of claim 5, wherein the binder contained in the surface-protective layer is a hydrophobic polymer having a glass transition temperature of −30° C. to 40° C.
- 9. The photothermographic material of claim 6, wherein the binder contained in the back-surface protective layer is a hydrophobic polymer having a glass transition temperature of −30° C. to 40° C.
- 10. The photothermographic material of claim 5, wherein the binder contained in the surface-protective layer is cellulose acetate butyrate.
- 11. The photothermographic material of claim 6, wherein the binder contained in the back-surface protective layer is cellulose acetate butyrate.
- 12. The photothermographic material of claim 1, wherein at least one of the surface-protective layer and the back-surface protective layer comprises a sliding agent.
- 13. The photothermographic material of claim 12, wherein a coating amount of the sliding agent in at least one of the surface-protective layer and the back-surface protective layer is from 1 mg/m2 to 500 mg/m2.
- 14. The photothermographic material of claim 1, wherein a total silver amount coated on the photothermographic material is from 1.1 g/m2 to 1.9 g/m2.
- 15. The photothermographic material of claim 1, wherein silver iodide is contained in the silver halide in an amount of at least 5 mol %.
- 16. The photothermographic material of claim 1, wherein an antistatic agent is contained in the photothermographic material in a coating amount of 60 mg/m2 to 150 mg/m2.
- 17. The photothermographic material of claim 16, wherein the antistatic agent is a metal oxide.
- 18. The photothermographic material of claim 1, further comprising a fluorine-containing surfactant.
- 19. The photothermographic material of claim 1, wherein the image-forming layer has a thickness of 15 μm or less.
- 20. The photothermographic material of claim 1, wherein a matting agent having a mean sphere-corresponding radius of 0.1 μm to 10 μm is contained in at least one of the surface-protective layer and the back-surface protective layer in a coating amount of 5 mg/m2 to 200 mg/m2.
- 21. A method for forming an image on the photothermographic material of claim 1, the method comprising exposing the photothermographic material and thermally developing the photothermographic material, wherein a transfer linear velocity of the photothermographic material during thermal developing of the photothermographic material is 30 mm/sec or more.
- 22. The method of claim 21, wherein the transfer linear velocity of the photothermographic material is 45 mm/sec or more.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2003-132814 |
May 2003 |
JP |
|
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims priority under 35USC 119 from Japanese Patent Application No. 2003-132814, the disclosure of which is incorporated by reference herein.