PROCEDE ET APPAREIL DE SERIGRAPHIE, NOTAMMENT POUR CIRCUITS IMPRIMES

• Main Authors: TETSUO TAKAHASHI, AKIO SASAKI, HAJIME SHIMAZAKI, MASAKAZU HASEGAWA, KUNIO MOGI
• Format: Patent
• Language: French
• Published: 26.08.1988
• Edition: 4
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; COLOUR PRINTING; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LINING MACHINES; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PERFORMING OPERATIONS; PRINTED CIRCUITS; PRINTING; PRINTING MACHINES OR PRESSES; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; STAMPS; TRANSPORTING; TYPEWRITERS

L'INVENTION CONCERNE UN PROCEDE ET UN APPAREIL DE SERIGRAPHIE.ELLE SE RAPPORTE A UN APPAREIL DE SERIGRAPHIE DANS LEQUEL DEUX TETES D'IMPRESSION 34A, 34B COMPORTENT CHACUNE UNE LAME DE RACLAGE 26A, 26B ET UNE RACLETTE 24A, 24B. LES DEUX TETES ASSURENT DES IMPRESSIONS EN ALTERNANCE DE MANIERE QUE LES LAMES DE RACLAGE ETALENT LA PATE SUR L'ECRAN, ET QUE LES RACLETTES ASSURENT L'IMPRESSION PAR APPLICATION A L'ECRAN D'UNE PRESSION QUI REPOUSSE LA PATE CONTRE L'OBJET MAIS QUI NE TRANSPORTE PAS LA PATE. DE CETTE MANIERE, LE DESSIN IMPRIME PEUT ETRE TRES FIN.APPLICATION A LA FABRICATION DES CIRCUITS IMPRIMES. A screen printing apparatus capable of uniformly applying a paste onto a screen to accomplish fining of a printed pattern and formation of a fined printed pattern. The apparatus includes a pair of laterally movable printing heads alternately actuated for printing and each including a doctor plate and a squeegee which are vertically movably arranged. The doctor plates of the printing heads being arranged laterally opposite to each other on the screen. The doctor plates each serve to apply a paste onto the screen while transferring the paste on the screen and the squeegees each act ot press the screen against a printed object after application of the paste onto the screen by the doctor plate corresponding thereto.