Printed products and a process for their manufacture
AssigneeBASF Farben & Fasern Akg.
InventorsRolf Kubler, Volker Schabacker
Life of this patent
Estimating the term…
Abstract
Printed products obtained by the planographic printing process whereby printing inks are transferrred by means of a lithographic printing plate to a printing stock, and a corresponding planographic printing process for forming the products. Printing inks which predominantly contain water as a solvent and/or dispersing agent and having a dynamic viscosity of 10 to 250 Pa.s, and printing plates whose information-bearing, i.e., printing, areas are hydrophilic and whose non-printing areas are hydrophobic, are used.
Claims25
A printed product obtained by a planographic printing process using printing inks transferred by means of a lithographic printing plate to a printing stock, without employing a dampening liquid, said printing inks having a dynamic viscosity of 10 to 250 Pa.multidot.s and predominantly containing a solvent consisting essentially of water, a water dispersing agent, or a mixture thereof, and said printing plate having information-bearing areas which are hydrophillic and non-printing areas which are hydrophobic.
In a planographic printing process comprising transferring printing inks by means of lithographic printing plates to a printing stock, without employing a dampening liquid, the improvement comprising
- said printing inks having a dynamic viscosity of 10 to 250 Pa.multidot.s and predominantly containing a solvent consisting essentially of water, a water dispersing agent, or mixtures thereof, and said printing plate having information-bearing areas which are hydrophilic and non-printing areas which are hydrophobic.
A method for planographic printing without employing a dampening liquid comprising:
- transferring printing inks to a printing stock by means of lithographic printing plates, wherein the non-printing areas of said plates are coated with silicone rubber and the information bearing area of said plates is comprised of a hydrophilic material and wherein the printing ink employed in said process has a dynamic viscosity of 10 to 250 Pa.multidot.s at 23.degree. C. and wherein said ink is comprised of an acrylic binder and pigments and wherein said ink includes a solvent predominantly comprised of water.
Dependencies are inferred from the claim text.