Patents
Patents for B41M 5 - Duplicating or marking methods; Sheet materials for use therein (48,459)
04/1991
04/03/1991EP0420674A1 Image forming method on heat-sensitive recording material
04/03/1991EP0420637A1 High solids CF printing ink
04/03/1991EP0420399A1 Interlace printing process
04/03/1991EP0420132A2 Thermal transfer recording medium
04/03/1991EP0420036A1 Use of azo dyes in thermal transfer printing
04/03/1991EP0420024A2 Fluoran compounds, process for preparation thereof and recording materials comprising said compound
04/03/1991EP0419659A1 Color developer for pressure-sensitive recording medium, aqueous dispersion of color developer, and process for its preparation
04/03/1991EP0244441B1 Apparatus and method for controlling a thermal printer apparatus
04/02/1991US5005028 Image forming method and transfer recording medium therefor
04/02/1991US5004813 Chromogenic phthalides and azaphthalides
03/1991
03/29/1991CA2012481A1 Interlace printing process
03/28/1991DE3930667A1 Reversible oder irreversible erzeugung einer abbildung Reversible or irreversible production of a figure
03/27/1991EP0419377A1 Procedure apparatus and paint for the laser marking of castings for electrical apparatus
03/27/1991EP0419241A2 Transparent overlay for protecting a document from tampering
03/27/1991EP0419236A2 Composite thermal transfer sheet
03/27/1991EP0418792A1 Ink, ink jet recording method employing the same, method for producing the ink, and the use of the ink for recording on a substrate
03/27/1991EP0418399A1 Composition for reversible thermal recording medium
03/27/1991EP0176601B1 Optical recording medium
03/27/1991CN1050159A Producing method for double side blue record carbon-paper
03/26/1991US5002925 Isopropyl 1-amino-4-m-toluidinoanthraquinone-2-carboxylate, cyan composition for sublimation transfer record and cyan composition for color toner containing it
03/26/1991US5002924 Sheets with rupturable microcapsules for a carbonless copy paper
03/26/1991US5002863 Methine dyes
03/26/1991US5002832 Pressure-sensitive recording medium
03/26/1991US5002825 Offset printing surface film, a porous layer on a plastic film
03/26/1991US5002819 Thermal transfer material
03/20/1991EP0417555A1 Pentamethine dyes and derivatives
03/20/1991CN1050096A Electrographic image carrier member
03/19/1991US5001106 Image-receiving sheet
03/19/1991US5001105 Bis-(indoly)ethylenes record systems utilizing such compounds
03/19/1991US5001104 Color developing layer contains ammonium zirconyl carbonate
03/19/1991US5001035 Method of recording information, recording element manufactured according to the method and method of producing a metal matrix
03/19/1991US5001012 Thermal transfer donor element
03/19/1991US5000786 Ink composition and ink jet recording apparatus and method
03/19/1991CA1281764C Thermal printer with printing plate making mode
03/19/1991CA1281546C Process for making a plastic substance sensitive to laser beams and markable by a laser and artide obtained with said process
03/19/1991CA1281507C Transfer printing method
03/14/1991WO1991004301A1 Heat-sensitive sublimation transfer cyan dye and transfer sheet
03/14/1991DE3645042C2 Photosensitive copying sheet for heat or pressure transfer - contg. microcapsules contg. pigment or dyestuff, photocurable resin and photoinitiator
03/14/1991CA2040426A1 Heat-sensitive sublimation transfer cyan dye and transfer sheet
03/13/1991EP0416618A2 Stamping foil
03/13/1991EP0416434A2 Triazole pyridine dyes and a thermal transfer process of methine dyes
03/13/1991EP0134818B1 No carbon required paper for letter printer
03/12/1991US4999335 Thermal dye transfer receiving element with blended polyethylene/polypropylene-coated paper support
03/12/1991US4999334 Protective coating for thermal images
03/12/1991US4999333 Heat sensitive recording material
03/12/1991US4999332 Leuco dye, diallyl-dihydroxy-diphenyl sulfone developer, dibenzyl oxalate sensitizer
03/12/1991US4999281 Cyanine dyes, heterocyclic sulfur compounds as singlet oxygen quenchers
03/12/1991US4999026 Transferring dyes for thermal printing: tri-cyano-vinyl aniline dyes
03/07/1991WO1991002653A1 Heat-sensitive recording paper
03/06/1991EP0415885A1 Bis-Phthalideactones, process for their preparation, and their use in recording materials
03/06/1991EP0415880A2 Light stabilised inks
03/06/1991EP0415849A1 Printing sheet
03/06/1991EP0415674A2 Article having marking thereon and methods of making
03/06/1991EP0415535A1 Color photothermographic materials with development accelerator
03/06/1991EP0415250A1 Process for stabilizing chlorinated paraffins
03/06/1991EP0415203A2 Thiazole dyes of the merocyanine type and a thermal transfer process using these dyes
03/06/1991EP0414966A1 Optical disc recording medium having a microstructure-derived inhomogeneity or anisotropy
03/05/1991US4997994 Article having marking thereon and methods of making
03/05/1991US4997874 Dispersion of metal-modified salicylic acid resin
03/05/1991US4997807 Image-receiving sheet for thermal dye-transfer recording
03/05/1991US4997806 Thermosensitive recording materials
03/05/1991US4997805 Heat sensitive recording material containing chromogenic dicyanomethylenepyrazolinones
03/05/1991US4997741 Color image forming method using leuco dyes and recording material containing leuco dyes
03/05/1991US4997506 Process of decorating articles
02/1991
02/28/1991DE3927826A1 Erasable flat recording medium - has carrier with sheet material whose optical state changes reversibly with temp. changes and writing-erasing criteria code on carrier
02/27/1991EP0414509A2 Heat sensitive record material
02/27/1991EP0414251A2 Thermal transfer image receiving material
02/27/1991EP0414243A2 Heat-sensitive recorder
02/27/1991EP0414229A2 Heat-sensitive recording material
02/27/1991EP0414225A2 Coloring agent carrying medium used in two-phase thermal recording system
02/27/1991EP0414091A1 Transparent image-recording elements
02/27/1991EP0413819A1 Transfer material with a pattern of metallic gloss and process for its production
02/26/1991US4996537 Method of and apparatus for recording image
02/26/1991US4996328 Bis-(indolyl)ethylenes
02/26/1991US4996184 Sheet material for use in a method for non-impact printing, photocopying and like reprographic processes
02/26/1991US4996183 Minimization of head stain
02/26/1991US4996182 Heat-sensitive recording material
02/26/1991US4996093 Thermal transfer recording medium
02/26/1991US4996089 Optical data recording medium
02/26/1991US4995741 Thermal print-transfer ribbon
02/21/1991WO1991001890A1 Thermal transfer sheet
02/21/1991DE4025613A1 Polyester film for thermal transfer recording sheets - obtd. by applying electron-beam-curable resin to incompletely stretched polyester substrate, stretching film and electron-curing resin
02/20/1991EP0413664A2 Laser-marking of plastic objects in any form by means of special effects
02/20/1991EP0413569A2 Thermal imaging system
02/20/1991EP0413442A1 Ink-jet inks for the marking of plastics
02/20/1991EP0413229A1 Phenonazo compounds and process for the thermal transfer of these dyes
02/19/1991US4994520 Carbon black-graft polymer, method for production thereof, and use thereof
02/19/1991US4994431 Heat-sensitive recording material
02/19/1991US4994343 Stability
02/19/1991CA1280442C Stabilization of ketazine dyes
02/19/1991CA1280433C Fluoran derivatives, process for preparation thereof and recording material containing the same
02/13/1991EP0412570A2 Light- and heat-sensitive recording material
02/13/1991EP0412539A2 Thermal recording medium
02/13/1991EP0412517A2 Thermal transfer recording sheet
02/13/1991EP0412362A2 Optical recording medium
02/12/1991US4992414 Thermal transfer receiving sheet
02/12/1991US4992413 Image-receiving sheet
02/12/1991US4992412 Aqueous based developer composition
02/12/1991US4992411 Thermal recording paper
02/12/1991US4992304 Patterning, reorientation