141 |
Solid transfer negative- or positive-working color proofing method |
US261374 |
1988-10-21 |
US5213941A |
1993-05-25 |
Stephan J. W. Platzer |
This invention provides an improved negative-working or positive-working, single sheet color proofing method which can accurately reproduce images by using colored, photosensitive layers on substrates which are then overcoated with partially developable adhesive layers. The final construction is useful in predicting the image quality from a lithographic printing process. The partial removal of the adhesive layers cleans out any background stain which may remain from the incomplete removal of the photosensitive layer. |
142 |
Image forming material |
US596662 |
1990-10-11 |
US5158857A |
1992-10-27 |
Fumiaki Shinozaki; Tomohisa Tago; Tomizo Namiki; Hideyuki Nakamura |
A light-sensitive transfer sheet is disclosed, which comprises a support having provided thereon a peeling layer comprising an alcohol-soluble polyamide, an alkali-soluble organic polymer and a basic compound, and a color material-incorporated light-sensitive resin layer or a color material layer and a light-sensitive resin layer, in that order. |
143 |
Polyolefin backside coating for photosensitive reproduction element |
US763048 |
1991-09-20 |
US5135836A |
1992-08-04 |
Richard P. Pankratz |
A polyolefin coating provides slip and antiblock properties to a multilayer, peel-apart photosensitive element. |
144 |
Image transfer to diverse paper stocks |
US513016 |
1990-04-23 |
US5094931A |
1992-03-10 |
Stephan J. W. Platzer |
The invention provides a method for protecting an image which comprises providing a multilayered colored image on a permanent receiver which may be any of a wide range of materials. A photosensitive element on a substrate is laminated to a temporary element and exposed with substrate removal before development. After development, the steps are repeated with another color. A protective element is laminated to the colored image. After removal of the support of the temporary element, the colored image with protective element is laminated to a permanent receiver. |
145 |
Photopolymerizable image-receiving sheet material and process for the
formation of a transferred image |
US494338 |
1990-03-16 |
US5085969A |
1992-02-04 |
Tomizo Namiki; Tamotsu Suzuki; Fumiaki Shinozaki |
An image-receiving sheet material to be used for the formation of a transferred image by transferring a transferable image formed on an image-forming layer of a photo-sensitive material onto the image-receiving sheet material and then retransferring the image onto a permanent substrate, as well as a process for the formation of a transferred image with the use of the image-receiving sheet material are disclosed. |
146 |
Halftone image production |
US581123 |
1990-09-10 |
US5075196A |
1991-12-24 |
Eddie R. Daems; Luc H. Leenders |
A halftone dot image pattern is formed on a support comprising a paper base, a polyolefin layer on at least one side of said paper base in a coverage in the range of 5 to 40 g/m2, on the opposite side of the polyolefin layer a binder layer comprising a hydrophilic colloid binding agent and white titanium dioxide pigment particles having an average grain size in the range of 200 nm to 450 nm, said pigment particles being present in a coverage of at least 0.5 g per m2 up to 300% by wt of the total binder contents. The half tone dot image pattern is on the exterior side of the binder layer and is a halftone relief image pattern having at least color pigmented gelatin-containing layer, preferably three or four such layers of different colors; e.g., cyan, magenta, yellow and optionally black. The resultant halftone material has a controlled visual appearance; e.g., for color proofing purposes, especially with respect to dot gain. |
147 |
Apparatus for processing a photosensitive element |
US612977 |
1990-11-15 |
US5059996A |
1991-10-22 |
James S. Bailey; Timothy C. Croce; Lawrence D. Huppman; Michael P. Marion |
The present invention relates to an apparatus for processing a photosensitive element and, more particularly, for processing an aqueous developable photosensitive element which contains colorant. The apparatus comprises a a primary developing station for washing away most non-image portions from the element and a secondary developing station for washing away a remainder of the non-image portion. After the element is processed by the apparatus, the processed element forms a colored image on a support. |
148 |
Multicolor image-forming method |
US679999 |
1991-04-01 |
US5059509A |
1991-10-22 |
Hisashi Mino; Takeshi Iijima; Kuniaki Monden |
An improvement in a multicolor image-forming method and a multicolor image-forming material applied to the same, employing a heat transfer photosensitive material comprising a transparent substrate, a colored layer which is soluble in water but insolubilizable by light, and a heat-fusible and bondable intermediate layer therebetween. |
149 |
Coating positive or negative working color proofing system |
US425373 |
1989-10-17 |
US5039590A |
1991-08-13 |
Stephan J. W. Platzer; Gabor I. Koletar |
This invention relates to a single positive or negative working photosensitive layer on a substrate which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image after processing and lamination. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process. |
150 |
Multicolor image product |
US391827 |
1989-08-10 |
US5019471A |
1991-05-28 |
Hisashi Mino; Takeshi Iijima; Kuniaki Monden |
Multicolor image products useful for prepress color proofing. The products are laminates of a transfer support sheet; an adhesive layer of a heat-fusible and bondable material on a surface of said transfer support sheet; an image layer of a first color provided on the adhesive layer and having image areas of a water-insoluble resin component and non-image areas, the image areas being bonded to the surface of the adhesive layer; and one, two or three additional image layers each of a different color other than that of the first image layer. Each image layer is separated from another image layer by an intermediate layer of a material which is harmless to hue and transparency and has opposed first and second surfaces, the second surface being adhered to the image areas of the image layer closer to the transfer support sheet and to the adhesive layer or other intermediate layer at the non-image areas and being non-sticky at room temperature, heat-fusible and directly transferable to another heat-fusible surface at a temperature which prevents dimensional change and deformation of the surfaces so as to provide exact registration of the image layers and water-insoluble. The first surface of each intermediate layer is adhered to the image areas of the image layer farther from the transfer support sheet and to any additional intermediate layer and has the characteristics of the second surface except that the first surface is not required to be water-insoluble. An intermediate layer is also provided as the outermost layer of the laminate. |
151 |
Color proofing system having a graduated layer of resins with different
solubilities |
US261372 |
1989-10-21 |
US5008174A |
1991-04-16 |
Stephan J. W. Platzer |
A photosensitive element which comprises a substrate having a release surface; a photosensitive layer having a photosensitizer, pigment, and mixture of binders with different solubility characteristics; and an adhesive layer coated directly on the photosensitive layer. The adhesive solution dissolves one of the resins in the photosensitive layer but does not dissolve the photosensitizer and the resin used to bind the pigment. During overcoating of the adhesive on the photosensitive layer, an increasing gradient of the soluble resin towards the adhesive layer and a decreasing gradient of the photosensitizer and nonsoluble resin is formed. |
152 |
Multi-color image-forming method with microcapsule positive diazotype
color image formation and positive light-solubilizing color image
formation |
US185225 |
1988-04-25 |
US4980260A |
1990-12-25 |
Fumiaki Shinozaki; Mikio Totsuka; Tomizo Namiki |
A multicolor image-forming method which comprises image-exposing a light-sensitive heat-sensitive recording material having a diazo compound and a coupling component on a support using a positive image followed by developing to form a color image, image-exposing a light-solubilizing color image-forming material having a coloring material on a substantially transparent support using a positive image followed by developing to form a color image, and superposing the light-solubilizing color image-forming material having the color image on the light-sensitive heat-sensitive recording material having the color image or, further, heat-pressing the light-solubilizing color image-forming material having the color image superposed on the light-sensitive heat-sensitive recording material having the color image. |
153 |
Element containing lower gloss protective covering and a pre-press color
proof |
US479818 |
1990-02-14 |
US4971893A |
1990-11-20 |
Harvey W. Taylor, Jr. |
Method of providing an image-bearing surface, e.g., a pre-press proof, with a protective covering, comprising laminating to said surface a thin, substantially transparent integral polymeric film, the improvement wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers, whereby the film exhibits a 20.degree. specular gloss that is at least 5% lower than the gloss of a film prepared from any one of said polymer constituents. |
154 |
Positive working, peel developable, color proofing system having two
photosensitive layers |
US462177 |
1990-01-08 |
US4963462A |
1990-10-16 |
Wojciech A. Wilczak |
This invention relates to positive working color proofing sheet construction which, upon exposure to an actinic radiation source through a screened image, can accuratley reprouce said image. The construction is useful as a color proofing film which can be employed to accurately predict the image quality from a lithographic printing process. The image is produced by forming a composite of a receiver base, diazo or diazide layer, photopolymerizable layer and cover sheet. Upon imagewise exposure, a positive image appears on the receiver base after dry peel apart development. |
155 |
Positive working color proofing system comprising polyvinyl
acetal/polyvinyl alcohol/polyvinyl acetate resin |
US237864 |
1988-08-29 |
US4948693A |
1990-08-14 |
Richard L. Shadrach; Stephan J. W. Platzer; Gabor I. Koletar |
This invention relates to positive working photosensitized sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process. |
156 |
Gloss controlling process |
US284363 |
1988-12-14 |
US4925767A |
1990-05-15 |
Eddie R. Daems; Luc H. Leenders |
Process for controlling the visual appearance of an image present on a permanent support in the form of a hydrophilic colloid layer, layer system or relief pattern by the transfer of a continuous non-photosensitive layer from a temporary support onto said permanent support either before or after said image is formed thereon, which comprise by pre-wetting the permanent support either image-free or with said image already thereon, containing the pre-wetted support with said continuous layer carried on the temporary support, and stripping off the temporary support to leave the continuous layer adhering on the permanent support, said continuous layer being non-photosensitive and contains hardened gelatin, the gelatin being applied at a coverage of at most 20 g/m2 and having a degree of hardening corresponding with that achieved by the addition of at least 0.001 g of formaldehyde per gram of gelatin. |
157 |
Method of providing lower gloss protective covering for pre-press color
proof |
US285312 |
1988-11-30 |
US4921776A |
1990-05-01 |
Harvey W. Taylor, Jr. |
Method of providing an image-bearing surface, e.g., a pre-press proof, with a protective covering, comprising laminating to said surface a thin, substantially transparent integral polymeric film, the improvement wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers, whereby the film exhibits a 20.degree. specular gloss that is at least 5% lower than the gloss of a film prepared from any one of said polymer constituents. |
158 |
Water developable, negative working overlay or transfer type diazo color
proofing system |
US183841 |
1988-04-20 |
US4914039A |
1990-04-03 |
Stanley F. Wanat |
This invention relates to water developable, negative working photosensitized sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process. The invention provides both overlay and transfer type proofing sheets which have good fingerprint resistance. |
159 |
Method of changing the density of image on simple color proof using a
randomly dotted half tone mask |
US214063 |
1988-07-01 |
US4889794A |
1989-12-26 |
Masahiro Terahata |
A method of obtaining a color proof in which color-separated images are successively exposed onto colored light-sensitive layers. The layers are all transferred to a printing paper. The exposures are performed through a mask having dots of predetermined density and diameter, depending on the type of printing paper. If the color-separated images are positive, the dots are transparent on a dark background. If the color-separated images are negative, the dots are dark on a transparent background and additional exposures are made without the mask. |
160 |
Overlay proofing film |
US199011 |
1988-05-26 |
US4842950A |
1989-06-27 |
O. Alfred Barton |
An improved overlay proofing film comprising a substantially transparent polyester base film which is first coated on one or both sides with a non-light sensitive composition having a refractive index of about 1.6, said non-light sensitive composition consisting essentially of a copolymer of polymethyl methacrylate and methacrylic acid. |