CYLINDRE POUR IMPRESSION AU CADRE TOURNANT ET PROCEDE POUR FABRIQUER UN TEL CYLINDRE

• Main Author: KUNIO KATSUUMA
• Format: Patent
• Language: French
• Published: 09.01.1981
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; LINING MACHINES; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE; METALLURGY; PERFORMING OPERATIONS; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM; PRINTING; PRINTING PLATES OR FOILS; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES; STAMPS; TRANSPORTING; TYPEWRITERS

L'INVENTION A POUR OBJET UN CYLINDRE POUR IMPRESSION AU CADRE TOURNANT AINSI QU'UN PROCEDE POUR FABRIQUER UN TEL CYLINDRE.CE CYLINDRE COMPORTE UN CORPS CYLINDRIQUE METALLIQUE MAILLE SANS JOINT FORME PAR DEPOT ELECTROLYTIQUE, CHACUNE DES MAILLES DU CYLINDRE SANS JOINT COMPORTANT UN SUBSTRAT MAILLE OBTENU PAR UN PREMIER DEPOT METALLIQUE AYANT UNE SECTION SEMI-CYLINDRIQUE DANS LAQUELLE LA FACE INTERNE EST PLANE ET LA FACE EXTERNE EST COURBE ET UNE COUCHE D'UN DEUXIEME DEPOT METALLIQUE APPLIQUE AVEC UNE EPAISSEUR UNIFORME SUR LA PERIPHERIE DU SUBSTRAT MAILLE. A cylinder for rotary screen printing comprises a seamless mesh cylindrical body of a metal formed by electric plating, each of meshes of the seamless cylinder comprising a primary metal plating mesh substrate formed on the surface of a mother roll and subsequently removed therefrom prior to application of a secondary plating layer applied in a uniform thickness to the periphery of said mesh substrate. The preferred form of the mesh is a semicylindrical section in which the inner face side is flat and the outer face side is curved. The primary and secondary metal plating layers are preferably nickel the former having a thickness in the range 20-50 mu m and the overall thickness of the product being in the range of 60-150 mu m.