序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
181 Image-forming material US63467 1993-05-19 US5389489A 1995-02-14 Naoto Yanagihara; Tosiaki Endo; Naotaka Wachi
An image-forming material which includes on a support a coating layer containing at least (A) a microcapsule, which encapsulates (1) a leuco dye that forms color upon oxidative development and (2) a photooxidizing agent and (B) a reducing agent, wherein the leuco dye is a xanthene derivative represented by the following formula (1): ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, each designates a hydrogen atom, an alkyl group, an aralkyl group, or an aryl group; R.sup.3 designates a hydrogen atom, an alkyl group, an aralkyl group, an aryl group, a halogen atom, an alkoxy group, an aryloxy group, an alkylthio group, or an arylthio group; R.sup.4 and R.sup.5 which may be the same or different, each designates a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom, a trifluoromethyl group, a substituted carbonyl group, or a substituted sulfonyl group; and R.sup.6 designates a hydrogen atom, an alkyl group, or a substituted carbonyl group; andwherein R.sup.1 and R.sup.2, and/or R.sup.4 and R.sup.5 may be bonded to each other to form a ring which may include an unsaturated bond or a hetero ring.
182 Light-sensitive element and process for preparation thereof US784992 1991-10-30 US5368973A 1994-11-29 Akira Hasegawa
A light-sensitive element which comprises a substrate having provided thereon a light-sensitive layer which comprises microcapsules containing at least an ethylenically unsaturated compound and a photopolymerization initiator as active substances, wherein the active substances diffused from the microcapsules are present on and around the surface of the microcapsules.The light-sensitive element, when imagewise exposed to light, forms a continuous strong film in exposed areas, and unexposed areas can be easily washed off with water to give a printing plate which produces prints having no background contamination.
183 Transfer imaging system US323699 1989-03-15 US5309196A 1994-05-03 Frederick W. Sanders
A transfer imaging system is disclosed wherein images are formed by image-wise exposing a layer comprising a chromogenic material and pressure rupturable capsules containing, as an internal phase, a photosensitive composition. In a preferred embodiment, the chromogenic material is encapsulated with the photosensitive composition. Upon exposure and capsule rupture the chromogenic material is image-wise transferrable to a developer or copy sheet where the chromogenic material reacts with a developer to form an image. Preferred systems are sensitive to U.V. or blue light in the wavelength range of 380 to 480 nm.
184 Image receiving material containing particles of thermoplastic compound US029389 1993-03-10 US5296331A 1994-03-22 Keiichi Taguchi
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.
185 Self-contained imaging sheet useful for reproducing images on plain paper and method therefor US831899 1992-02-06 US5283152A 1994-02-01 Lyudmila Feldman; David A. Gobran; Carol L. Inskeep
A self-contained imaging sheet comprising in order:(a) a support;(b) a first layer comprising photosensitive microcapsules having an internal phase, said internal phase comprising an image forming agent and a photosensitive composition which undergoes a physical transformation in response to exposure to actinic radiation;(c) a second layer comprising a developer material; and preferably(d) a third layer comprising an adhesive forming component, said self-contained imaging sheet being useful in forming images on plain paper by a process which comprises imagewise exposing said imaging sheet to actinic radiation, forming an image on said developer material, transferring the image bearing developer layer to said plain paper, and separating said imaging sheet from said plain paper, wherein said image bearing developer layer remains adhered to said plain paper and said microcapsule layer remains adhered to said support.
186 Process for preparation of light-sensitive microcapsule US841020 1992-02-25 US5254428A 1993-10-19 Shunichi Ishikawa; Hideo Nagano
A light-sensitive microcapsule contains silver halide, a reducing agent, an ethylenically unsaturated polymerizable compound and a color image forming substance. Another light-sensitive microcapsule contains a photopolymerization initiator, an ethylenically unsaturated polymerizable compound and a color image forming substance. The microcapsules are prepared by a process comprising the steps of emulsifying an oily phase containing the silver halide, the reducing agent, the polymerizable compound and the color image forming substance (or an oily phase containing the photopolymerization initiator, the polymerizable compound and the color image forming substance) in an aqueous medium containing a water-soluble polymer in water; and forming the shell around the droplets of the oily phase. In the process of the present invention, the oily phase is emulsified in the aqueous medium by mixing the oily phase and the aqueous medium; supplying the mixture to a clearance of not larger than 5 mm between an inner cylinder and an outer cylinder; passing the mixture through the clearance while rotating the outer cylinder and/or the inner cylinder. Light-sensitive materials prepared by using the light-sensitive microcapsules are also disclosed.
187 Thermal developing type photosensitive pressure sensitive image recording medium US886255 1992-05-21 US5223371A 1993-06-29 Mitsuru Ohta
A thermal developing type photosensitive pressure sensitive recording medium records an image and transfers the image onto an image receiving medium. The image recording medium includes a substrate, microcapsules and binder. The microcapsules are formed on the substrate, and encapsulate therein dye and polymerizable compound. A latent image is formed in a combination of the microcapsules by changing mechanical strength thereof upon photopolymerization of the polymerizable compound for forming cured and non-cured microcapsules. The dye flows out of the non-cured microcapsules and is transferred onto an image receiving layer by rupturing the non-cured microcapsules upon pressure application. The binder fixes the microcapsules onto the substrate. The binder contains a pressure sensitive adhesive agent. A portion of the image receiving layer, which portion being out of the image transferred area is adhesively removed from a base sheet of the image receiving medium and bonded to the image recording medium when the binder is pressed into direct contacted with the image receiving layer. If dye exists between the binder and the image receiving layer, such removal is restrained.
188 Imaging transfer system and process for transferring image and non-image areas thereof to a receptor element US505027 1990-04-05 US5139917A 1992-08-18 Donald Hare
The present invention is directed to an imaging system wherein the developed image and non-image areas are transferred to a receptor element by a transfer coating layer. The transfer layer of the present invention is coated on the support of the imaging sheet and/or developer sheet and comprises a material capable of holding developed images and non-image areas that can be transferred to a receptor surface upon the application of heat to the rear surface of the support. The transfer coating layer is capable of liquefying when heated and resolidifying when heat is removed.The present invention is further directed to a method of applying an image to a receptor element which comprises the steps of exposing an imaging system based on photosensitive encapsulates, developing the exposed element to form an image, positioning the front surface of the developed element containing the transfer layer of the invention against the receptor element, and applying heat to the rear surface of the element to transfer the developed image and non-image area to the receptor element.
189 Method and apparatus for recording images using diffused light US495773 1990-03-19 US5138370A 1992-08-11 Masashi Ueda
An image recording apparatus for recording the image information of a document on the surface of a photosensitive recording medium by irradiating the surface of the document and exposing the surface of the photosensitive recording medium to light reflected from the document is disclosed. A white, translucent film for diffusing light is applied to the upper surface of a contact glass, on which the document is placed, to irradiate the surface of the photosensitive recording medium by both diffused light reflected from the surface of the document and carrying image information, and white light reflected from the surface of the white, translucent film and not carrying any image information. The image recording apparatus records the image information of an image having satisfactory gradation and high definition and not having any pseudocontour.
190 Image transferring method US557027 1990-07-25 US5107298A 1992-04-21 Shunichi Higashiyama
An image transferring method for transferring a developer agent layer having a visible image from a developing medium comprising a substrate and the developer agent layer on the substrate to a heat sealing sheet comprising a sheet substrate and a thermoplastic resin layer on the sheet substrate, is disclosed. The method comprises the steps of superposing the developing medium over the heat sealing sheet while the developer agent layer is contacted with the thermoplastic resin layer, supplying the superposed developing medium and the heat sealing sheet with heat and pressure to attach the developer agent layer to the heat sealing sheet through the thermoplastic resin layer, and exfoliating the substrate from the developing medium attached to the heat sealing sheet while fixing the sheet substrate of the heat sealing sheet to a flat or curved surface.
191 Dye-benzyltriaryl borate photoinitiators and photohardenable composition containing these photoinitiators US457460 1989-12-27 US5100755A 1992-03-31 Michael S. Shanklin
The present invention is directed to a photoinitiator complex having the formula (I): ##STR1## wherein D+ is a cationic dye moiety; R.sup.1 is a benzyl or substituted benzyl group; and R.sup.2, R.sup.3 and R.sup.4 are aryl or substituted aryl groups, wherein said photoinitiator is capable of absorbing actinic radiation and producing free radicals.
192 Light- and heat-sensitive recording material US567040 1990-08-13 US5091280A 1992-02-25 Jun Yamaguchi; Shintaro Washizu; Hirotaka Matsumoto; Ken Iwakura; Yuuichi Fukushige
A light- and heat-sensitive recording material comprising a support having thereon at least one light- and heat-sensitive layer comprising, (1) microcapsules containing an electron donative colorless dye, and (2) a light-hardenable composition containing (a) a polymerizable vinyl monomer, (b) a photopolymerization initiator, and (c) an electron acceptive developer and a light- and heat-sensitive recording material comprising a support having thereon at least one light- and heat-sensitive layer comprising, (1) microcapsules containing an electron donative colorless dye, and (2) a light-hardenable composition containing (d) an electron acceptive polymerizable vinyl monomer and (b) a photopolymerization initiator.
193 Image-receiving sheet for transfer recording US409580 1989-09-18 US5071823A 1991-12-10 Toshihiko Matsushita; Sadao Morishita
There is disclosed an image-receiving, transfer recording sheet excellent both in the preciseness of the image and the gradation reproducibility, characterized in that the heat insulating layer comprises macromolecular microspheres mainly made of hollow resin particles and/or heterogenous resin particles.
194 Process for producing recording medium and apparatus therefor US399240 1989-08-29 US5068123A 1991-11-26 Hiroshi Goto; Toshiaki Harada; Noriyoshi Ishikawa
A process for producing a recording medium comprising a substrate and a plurality of image forming elements disposed thereon, which comprises the steps of: applying a binder onto the substrate to form thereon a binder layer; disposing the image forming elements on the binder layer; and simultaneously applying a vibration and a pressure to the image forming elements disposed on the binder layer sufficient to bond the image forming elements to the substrate as a substantially monoparticle layer.
195 Dye branched-alkyl borate photoinitiators US377671 1989-07-10 US5057393A 1991-10-15 Michael S. Shanklin; Peter Gottschalk
The present invention is directed to a compound of the formula (I): ##STR1## where D+ is a cationic dye moiety; R.sup.1 is a branched chain alkyl group, and R.sup.2, R.sup.3 and R.sup.4 are independently selected from the group consisting of alkyl, aryl, aralkyl, alkaryl, alkenyl, alkynyl, alicyclic, heterocyclic, and allyl groups.
196 Developer sheet useful in providing transparencies or reproductions having a controlled gloss finish utilizing a surfactant US508215 1990-04-11 US5030539A 1991-07-09 Karl A. Kintz; Robert A. Landis; Kelli J. Borello
Disclosed is a developer sheet useful in forming reproductions having a glossy finish, or in forming transparencies comprising:a support having a layer of a finely divided, thermoplastic, developer material on the surface thereof, said developer material being capable of reacting with a color precursor to produce a visible image and being capable of coalescing into a thin film which imparts gloss to said image upon application of heat and/or pressure, and having a surfactant admixed within said layer of developer material to aid in the coalescing of said developer material into a thin film.
197 Method for forming images and lamination of such images to a non-reactive substrate US463097 1990-01-10 USH931H 1991-06-04 Lyudmila Feldman; Marilyn K. Messer
A method for forming images on a non-reactive substrate such as paper or plastic film is disclosed, comprising the steps of: image-wise exposing an imaging sheet, said imaging sheet comprising a support having a layer of photosensitive microcapsules on the surface thereof, said microcapsules containing a photohardenable or photosoftenable composition including a photoinitiator, and a color precursor; assembling said image-wise exposed imaging sheet with a developer sheet; subjecting said assembly to a uniform rupturing force to cause said photosensitive microcapsules to rupture and transfer an image-wise pattern of said color precursor to said developer sheet thereby forming an image thereon; separating said imaging sheet from said developer sheet; assembling said image-bearing developer sheet with a non-reactive substrate to form a second assembly; and subjecting said second assembly to heat and a uniform force to laminate said image bearing developer sheet to said non-reactive substrate.
198 Image recording medium comprising a color developer layer formed on a thermoplastic resin layer US497360 1990-03-22 US5019475A 1991-05-28 Shunichi Higashiyama; Keiko Suzuki
A recording medium enabling formation of an image on any desired material is disclosed. The recording medium comprises a base sheet, a thermoplastic resin layer formed on at least one side of the base sheet, and a color developer layer formed on the thermoplastic resin layer and capable of color development by reaction with a dye precursor.
199 Method for image developing on plain paper utilizing a developer-donor sheet US454102 1989-12-20 US5017452A 1991-05-21 Lyudmila Feldman
A method for forming images on plain paper is disclosed, comprising the steps of: image-wise exposing an imaging sheet, said imaging sheet comprising a support having a layer of photosensitive microcapsules on the surface thereof, said microcapsules containing a photohardenable or photosoftenable composition including a photoinitiator, and a color precursor; assembling said image-wise exposed imaging sheet with a sheet of plain paper; subjecting said assembly of said imaging sheet and said plain paper to a uniform rupturing force to cause said photosensitive microcapsules to rupture and transfer an image-wise pattern of said color precursor to said plain paper thereby forming a latent image thereon; separating said imaging sheet from said plain paper; assembling said plain paper bearing said latent image with a developer-donor sheet comprising a support having a layer of a developer on the surface thereof to form a second assembly; subjecting said second assembly to a uniform force to transfer said developer to said plain paper bearing said latent image whereupon said developer reacts with said color precursor to form a visible image.
200 Method and apparatus for recording image data in multiplexed manner US175392 1988-03-30 US4998131A 1991-03-05 Masashi Ueda; Nakai Hitoshi
In recording a color picture image on a photosensitive and pressure-sensitive recording medium, in accordance with one aspect of the invention, a light carrying an image of an original is exposed on the recording medium through a main optical path and a light carrying an image of a supplemental sheet is multiplexedly exposed on the same recording medium. The recording medium is thereafter pressure-developed to provide a visible composite color image. In another aspect of the invention, two mask members are provided, one for a half-tone image of the original and another for a fine line image thereof, wherein a light is exposed on the recording medium through the respective mask members to form a latent image in accordance with a light shielding image formed on the mask members, whereby reproducibility of the original image is improved.
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