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US 5,296,331 AGranted
Image receiving material containing particles of thermoplastic compound
AssigneeFuji Photo Film Co., Ltd.
InventorKeiichi Taguchi
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AssigneeFuji Photo Film Co., Ltd.
InventorKeiichi Taguchi
Estimating the term…
An image receiving material comprises an image receiving layer provided on a support. The image receiving layer contains particles of a thermoplastic compound. The image receiving layer has a porous surface formed by the particles. According to the present invention, the image receiving material is prepared by forming the image receiving layer on the support and heating the image receiving layer at a temperature of higher than a softening point of the thermoplastic compound to widen pores in the porous surface. The image receiving material is preferably used in combination with a light-sensitive material which comprises a support and a light-sensitive layer in which light-sensitive microcapsules are dispersed. The light-sensitive microcapsules contain silver halide, a reducing agent, an ethylenically unsaturated polymerizable compound and a color image forming substance. An image forming process using the light-sensitive material and the image receiving material of the present invention comprises the steps of imagewise exposing to light the light-sensitive material; heating the light-sensitive material to develop the silver halide; and pressing the light-sensitive material on the image receiving material to form a color image on the image receiving material.
An image receiving material which comprises an image receiving layer provided on a support, said image receiving layer containing particles of a thermoplastic compound, and said layer having a porous surface formed by the particles, wherein the image receiving material is prepared by forming the image receiving layer on the support and heating the image receiving layer at a temperature of higher than a softening point of the thermoplastic compound to widen pores in the porous surface.
Dependencies are inferred from the claim text.
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No related US applications are recorded in the indexed filing history.
With photosensitivity-increasing substances, e.g. photoinitiators: silver salts, e.g. a latent silver salt image
Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g.…
Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]: including particulate material
Web or sheet containing structurally defined element or component: composite having voids in a component [e.g., porous, cellular, etc.]
Term ended 10 Mar 2013 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
The present invention relates to an image receiving material which comprises an image receiving layer provided on a support.
Image receiving materials have been used in various image forming processes, which comprises pressing or heating an image recording material on an image receiving material to transfer an image from the recording material to the receiving material. The pressing or heating procedures can be easily handled.
Examples of the processes using the image receiving materials include a pressure sensitive copying process, an electrophotography, a thermal image transfer process, a heat sublimate process and various light-sensitive image forming processes. The photosensors of the light-sensitive image forming processes include a photopolymerization initiator, a photodecomposition resin and silver halide. Processes using a photopolymerization initiator are disclosed in U.S. Pat. Nos. 4,440,846 (Sanders et al.) and 4,483,912 (Sanders). Processes using silver halide are U.S. Pat. No. 4,629,676 (Hayakawa et al.) and U.S. Pat. No. 4,912,011 (Yamamoto et al.).
The image receiving material of the present invention is prepared by forming an image receiving layer containing particles of a thermoplastic compound on the support and heating the image receiving layer at a temperature of higher than a softening point of the thermoplastic compound. The image receiving layer is usually formed by coating a dispersion of the particles of the thermoplastic compound on the support, and drying the image receiving layer at a temperature of lower than the softening point of the thermoplastic compound.
In the present specification, the term "temperature" means the surface temperature of the image receiving layer.
After the image receiving layer is formed, the image receiving layer is heated at a temperature of higher than the softening point of the thermoplastic compound. The heating temperature is preferably at least 10.degree. C., and more preferably at least 20.degree. C. higher than the softening point of the thermoplastic compound. In the case that the thermoplastic compound has a glasstransition point (Tg), the heating temperature is preferably also higher than the glasstransition point.