Dainippon Screen Mfg. Co., Ltd.

Dainippon Screen Mfg., Ltd.

Jiro Ono

Syunsuke Takagi

Hideki Adachi

Takayuki Umaba

Tetsu Takahashi

Hirofumi Shimizu

Mokuhei Hashimoto

Makoto Sawada

Koichi Mukaegaki

Tsuruo Matsumoto

Kohzoh Kuroda

A printing plate for screen printing to form a prescribed pattern with ink on an object includes: a plate of a prescribed material having a first surface and a second surface and divided at a distribution in accordance with the prescribed pattern into a first part and a second part. The first part has small apertures allowing the ink to be pressed out from the first surface to the second surface formed therein. The second part does not allow the ink to be transferred from the first surface to the second surface. The printing plate further includes a thin partition formed along the boundary of the first part and the second part and protruding by a prescribed uniform height from the second surface. The thin partition is for limiting within the second part the spreading of the ink on an object which is pressed out through the small apertures to the second surface of the second part. A process of manufacturing such a printing plate is also disclosed.

Screen printing plate for limiting the spread of ink on an object

A printing apparatus including: a screen having a printing plate portion and reinforcing strips formed on both sides of the printing plate portion; a stretching device for stretching the screen by applying a predetermined tension thereto in a longitudinal direction of the strips; a squeegee for sliding on the screen in the same direction as the longitudinal direction of the strips, thereby transferring ink onto a surface subjected to printing; and a support table for supporting a material subjected to printing. The squeegee has a width larger than the minimum spacing of the strips on both sides of the printing plate portion. When the squeegee slides on the screen, it presses the printing plate portion and the strips on both sides simultaneously. In printing, the portion of the screen in contact with the surface subjected to printing is maintained flat in the transverse direction. A stretching amount of the screen in the moving direction of the squeegee is equal to a stretching amount of each strip. The screen is not damaged by deformation.

Screen process printing apparatus using a screen reinforced by strips

A screen process printing plate includes a screen holding plate provided with an opening and having flexibility and restoring capability. A screen is fixed to the screen holding plate and covers at least a part of the opening. A fixed member is provided for fixedly holding one end of the screen holding plate and a movable member is provided for holding an opposite end of the screen holding plate. The movable member is movable in a direction parallel to a plane defined by the screen. A biasing device is provided for biasing the movable member in a predetermined first direction away from the fixed member and in the direction of movement of the movable member. When a squeegee presses the screen holding plate and the screen, the screen holding plate and the screen are flexibly curved easily into contact with an object to be printed. Since the tension is supported by the screen holding plate, excessive tension does not occur in the screen. The screen is snapped-off by the restoring force of the screen holding plate.

Screen process printing plate for printing with high precision

Growing community of inventors

Kyoto, Japan

Jiro Ono