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Photosensitive material with gap buffer layer

A buffer layer and component technology, applied in the direction of photosensitive material substrate/auxiliary layer, photosensitive material, instrument, etc.

Inactive Publication Date: 2005-01-05
EASTMAN KODAK CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unacceptable latent image placement on the silver halide grains may occur if sufficient compressive force is applied to the photosensitive layer

Method used

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  • Photosensitive material with gap buffer layer
  • Photosensitive material with gap buffer layer
  • Photosensitive material with gap buffer layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0093] In this example, a biaxially oriented, microvoided polyolefin sheet was laminated to a photographic grade cellulose paper base and coated with a commonly used photosensitive silver halide emulsion (Sample 2). The microvoided polyolefin sheet used in the present invention contained a voided layer with a compression percentage of 25%. The invention was compared to a commercially available silver halide photographic paper (Example 1) using polyethylene coated paper as the support. This example will demonstrate a significant improvement in percent compression compared to prior art photographic papers. Furthermore, this example will also show that when a compressive load is applied to an unexposed silver halide imaging layer, the formation of unwanted latent images is significantly reduced. Finally, several advantages in the production process resulting from a compression percentage of 25% will be apparent.

[0094] Photographic papers used in the present invention and com...

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Abstract

This invention relates to a photographic element comprising at least one silver halide containing imaging layer and a cushioning layer below said at least one imaging layer having a compression percentage of between 5 and 25%.

Description

technical field [0001] This invention relates to photographic elements. In a preferred form, the present invention relates to materials for photofinishing. Background technique [0002] In forming color photographic papers, it is known to apply a layer of polymer, usually polyethylene, to the base paper. The function of this layer is to provide waterproofing to the base paper and to provide a smooth surface for the photosensitive layer formed thereon. Although polyethylene does provide a water-resistant layer to the base paper, the melt-extruded polyethylene used in color photographic paper has little dimensional strength and, therefore, cannot be used alone as a carrier for images. US 5,244,861 suggests the use of biaxially oriented polypropylene in the receiver layer for thermal dye transfer printing. In this patent, a high strength biaxially oriented sheet is laminated to cellulose paper with low density polyethylene. The biaxially oriented sheet used in said patent i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03C1/76G03C1/79G03C7/30
CPCG03C2200/20G03C7/3029G03C1/7614
Inventor P·T·艾尔瓦德R·P·布尔德莱斯T·S·古拉
Owner EASTMAN KODAK CO
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