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1. WO2016189316 - IMPROVEMENTS RELATING TO PRINTING

Publication Number WO/2016/189316
Publication Date 01.12.2016
International Application No. PCT/GB2016/051530
International Filing Date 26.05.2016
IPC
B41N 3/03 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
NPRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE OR CONSERVING THEM
3Preparing for use or conserving printing surfaces
03Chemical or electrical pretreatment
B41C 1/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
1Forme preparation
10for lithographic printing; Master sheets for transferring a lithographic image to the forme
CPC
B41C 1/1016
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
1Forme preparation
10for lithographic printing; Master sheets for transferring a lithographic image to the forme
1008by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials
1016characterised by structural details, e.g. protective layers, backcoat layers or several imaging layers
B41C 1/1041
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
1Forme preparation
10for lithographic printing; Master sheets for transferring a lithographic image to the forme
1041by modification of the lithographic properties without removal or addition of material, e.g. by the mere generation of a lithographic pattern
B41M 1/06
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING,
1Inking and printing with a printer's forme
06Lithographic printing
B41N 3/032
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
NPRINTING PLATES OR FOILS
3Preparing for use and conserving printing surfaces
03Chemical or electrical pretreatment
032Graining by laser, arc or plasma means
Applicants
  • J P IMAGING (WUHAN) LIMITED [CN]/[CN]
Inventors
  • ADAMSON, John David
  • BENNETT, Peter Andrew Reath
  • LIU, Dun
Agents
  • APPLEYARD LEES IP LLP
Priority Data
1509208.328.05.2015GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVEMENTS RELATING TO PRINTING
(FR) AMÉLIORATIONS SE RAPPORTANT À L'IMPRESSION
Abstract
(EN)
A method of roughening a surface of a printing form precursor. The method comprises subjecting at least a part of the surface to energy in the form of pulses of electromagnetic radiation to produce a uniformly hydrophilic roughened surface on at least a part of the printing form precursor and optionally converting the uniformly hydrophilic roughened surface of the printing form precursor to a uniformly hydrophobic roughened surface. The method is useful for providing a surface for use in a subsequent imaging and/or printing process in lithographic printing. Methods of providing a printing form comprising an image formed of hydrophobic regions and hydrophilic regions using said method and a method of printing using said method are also described, as are printing forms so produced and imaging devices and apparatus for carrying out the said methods.
(FR)
L'invention concerne un procédé de rugosification d'une surface d'un précurseur de forme d'impression. Le procédé consiste à exposer au moins une partie de la surface à de l'énergie sous la forme d'impulsions de rayonnement électromagnétique pour produire une surface rugosifiée uniformément hydrophile sur au moins une partie du précurseur de forme d'impression et à facultativement convertir la surface rugosifiée uniformément hydrophile du précurseur de forme d'impression en une surface rugosifiée uniformément hydrophobe. Le procédé est utile pour fournir une surface à utiliser dans un processus ultérieur d'imagerie et/ou d'impression dans l'impression lithographique. L'invention concerne aussi des procédés pour fournir une forme d'impression comprenant une image formée de régions hydrophobes et de régions hydrophiles en utilisant ledit procédé et un procédé d'impression utilisant ledit procédé, ainsi que des formes d'impression produites de cette façon et des dispositifs et appareils d'imagerie permettant d'effectuer lesdits procédés.
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