Sun Chemical Corporation

Christian Johnke

Tillmann Pulina

Ramasamy Krishnan

Mark D Schneider

David Klein

Jerome Bollard

Hiroyuki Sugiyama

Kai-Uwe W Gaudl

Dave Klein

Matthias Hellblau

Bernard Fritz

Jean-Hugues Blaizeau

An LED curable lithographic ink comprising: 25-85% of one or more acrylates, wherein at least one acrylate is a pentaacrylate or hexaacrylate; 0-20% of one or more photoinitiators; 5-60% of one or more rosin-modified polyester resins, wherein the rosin-modified polyester resin has a molecular weight of 5,000 to 35,000 Daltons; 0.2-5% of one or more aluminum additives; 0.1-5% of one or more polymerization stabilizers; and 0-50% colorant.

LED-curable offset inks containing aluminum additives

An offset printing varnish, comprising a solvent, is provided. The solvent comprises at least one triglyceride with saturated monocarboxylic acid moieties, which solvent is preferably food safe.

Sheet-fed offset printing inks and varnishes comprising new solvents

Provided are high viscosity essentially non-aqueous dispersions containing acrylic core/shell polymer particles in a non-aqueous solvent; sheetfed, heatset and coldset lithographic ink compositions containing the dispersions; and methods of printing with ink containing the dispersions to improve the setting and drying properties and rub resistance of sheet fed offset, heatset and coldset lithographic inks. The lithographic inks containing the dispersions set quickly enough to allow processing of printed sheets soon after printing.

Compositions and methods to improve the setting properties and rub resistance of printing inks

A water washable waterless offset printing ink comprised of a binding agent having (i) a solid resin in an ester solvent, and (ii) an alkyd resin and/or an oil of one or more aliphatic carboxylic acid esters; a colorant; and a neutralizing agent.

Waterless waterwashable offset printing ink and method of production thereof

Growing community of inventors

Frankfurt am Main, Germany

Christian Johnke