Hoechst Aktiengesellschaft

Agfa-gevaert Ag

Agfa-gevaert

Agfa Gevaert Nv

Agfa-gervaert Ag

Dieter Mohr

Werner Frass

Martin Benzing

Rudolf Zertani

Klaus Rode

Andreas Elsaesser

Matthias Kroggel

Juergen Mertes

Waltraud Mueller-Hess

Stephan J Platzer

Ine Gramm

Gerhard Buhr

Paul Stahlhofen

Joachim Gersdorf

Karin Maerz

Hans W Frass

Manfred Hilger

Jurgen Mertes

Holger Schembs

Peter Blum

Engelbert Pliefke

Shane Hsieh

Wojciech A Wilczak

Guenter Hultzsch

David L Siegfried

Otfried Gaschler

Karl-Josef Rauterkus

Manfred Michel

Dieter Bodenheimer

Daniela Clausen

Karin Marz

Georg Pawlowski

Walter Herwig

Peter Lehmann

Klaus Joerg

Kurt Reiss

Guenter Jung

Gerhard Usbeck

Andrea Travers-Hemmer

Andreas Elsaessser

Silvia Neumann

Trutz-Ulrich Stephani

Karola Kaufhold

Kurt Riess

Britta Maisel

A negative-working, radiation-sensitive mixture is provided which contains an organic polymeric binder and a substance which converts radiant energy into heat, wherein the polymeric binder essentially comprises units of the formula (I):

Negative-working radiation-sensitive mixture for the production of a recording material which is imageable by heat of infrared laser beams

The invention relates to a process for the production of a colored image for color proofing of copy masters for multicolor printing and a layer material for carrying out this process. A positive image of the exposure mask (color separation film) is produced by lamination of a photosensitive material onto a colored layer material, followed by imagewise exposure and peeling-off of a film support, or a negative image of the exposure mask is obtained by imagewise exposure of the photosensitive material before the lamination, accompanied by flood exposure after lamination followed by peeling-off of a film support. The two procedures use the same materials and do not require wet development. For each single-color image, only one lamination step is required.

Method for producing a positive or negative color-proof using the same

A process for producing a colored image by laminating a light-sensitive material comprising a temporary support film (i), a colored light-sensitive layer and a heat-activable adhesive layer onto an image-receiving material at elevated temperature and under pressure, subjecting the light-sensitive layer to imagewise exposure and developing by peeling off the support film, characterized in that the image-receiving material comprises a light-sensitive compound which, on irradiation, releases a gas which remains trapped in the image-receiving material in the form of gas bubbles. The advantage of the process is that, on irradiation under a halftone original, the size of the halftone dots in the coloured image produced on such an image-receiving material is optically reduced.

Process for producing a colored image with reduced dot gain and colored

The present invention relates to a development material by means of a latent, colored image, obtained by laminating another, photopolymerizable material colored in a primary color onto an image-receiving material, peeling-off the film support and exposing the material under the associated negative color separation film, can be developed by laminating the development material onto the latent image and then peeling-off the development material together with the non-image areas. The invention also relates to a process for the production of a color proof using this development material in combination with photopolymerizable materials in the various primary colors.

Development material and process for the production of a negative color

A method for producing a positive as well as a negative multicolor color-proof image. The invention relates to a color proofing process in which a multicolor image is produced from a plurality of single-color images in register with the aid of a colored, photosensitive, photopolymerizable material on an image-receiving material. Depending on the processing variant, both positive and negative film masters can be processed, even simultaneously on a single receiving material, and it is not necessary for the emission spectrum of the light source to be variable.

Method for producing a positive as well as a negative multicolor

Disclosed are a photosensitive material and a corresponding method for making colour-proofing sheets for multicolour printing, comprising A) a transparent flexible polymeric support sheet, B) a photopolymerizable layer comprising B1) a polymeric binder, B2) a free-radically polymerizable compound, B3) a photoinitiator, and B4) a dye or pigment in a primary colour of multicolour printing, and C) a thermoplastic adhesion-promoting layer on the photosensitive layer, with a coating weight of 2 to 30 g/m.sup.2, characterized in that the thermoplastic adhesion-promoting layer includes 0.05 to 2.5% by weight of a colourless, transparent or white pigment having an average particle size which is less than 1% of the layer thickness and does not exceed 0.05 .mu.m and the ready-produced material has a slip friction coefficient of &lt;0.5.

Method for making a multicolor image and photosensitive material therefor

The invention describes a photopolymerizable recording material which comprises a photopolymerizable layer and a cover layer. The cover layer comprises a polymer which possesses low permeability to atmospheric oxygen and is soluble in water, and a water-soluble dye which absorbs light in the region from 300 to 700 nm and within this range has a non-absorbent region corresponding to the emission range of the copying light source. The material can be sensitized for various spectral regions, for example, for UV light, visible light or laser light and has a higher resolving power than a corresponding material which does not contain a dye in the cover layer, while its photosensitivity remains unchanged or is only slightly reduced.

Photopolymerizable recording material

A process for the production of a color image is described, in which a photosensitive material that has a temporary support film, a colored photosensitive layer and an adhesion-promoting layer that can be activated by heat is laminated at high temperature and under pressure with an image-receiving material which carries, on a support, a pigment layer containing a white pigment. The photosensitive layer is exposed imagewise and developed to produce an image, the temporary support film is peeled off from the image-receiving material before or after exposure to light and, if required, these steps are repeated with at least one further photosensitive material whose colored layer has another color to produce a multi-colored image. The process gives color images having a smaller dot enlargement compared with a halftone original and is particularly suitable for the color testing of copy for multicolor printing.

Temporary support film for transferring white pigment layer

A photosensitive material for the production of color proofing films for multicolor printing, having

Process for the production of a multicolored image and photosensitive

Image-receiving material for production of a color image utilizing a

Described is a photosensitive material for producing metal-colored images, comprising

Photosensitive material and production of metal-colored images utilizing

The invention relates to a photosensitive material for the production of color proofing films for multicolor printing comprising:

Process for the production of a multicolored image

Process for the production of a color image utilizing transferred white

Growing community of inventors

Budenheim, Germany

Dieter Mohr