Screen printing form and flexible screen printing form...

Details Screen printing form and flexible screen printing form... Screen printing form and flexible screen printing form...

B - Operations, Transporting

41

N

B41N 1/24 (2006.01) B41F 15/36 (2006.01)

Patent

CA 2265683

The invention relates to a screen printing fabric made of self crossing plastic threads (12, 14) with an emulsion coating, wherein the plastic threads are coated with a vacuum metallized or sputtered encasing layer (18) which is covered by an emulsion bearing metal coating (22) produced by electroplating. The invention also relates to a printing device accommodating a flexible screen printing form in a printing frame, wherein the screen printing form (26) can be fixed and stretched on two parallel areas crossing the moving direction of a movable doctor blade or similar tool and the screen printing form is fastened via interposed connector strips (28, 44) located on two parallel plate rims respectively on the frame side (34) of the printing frame (24) and on a tensioning bar (40) or similar moving element which can move within the frame parallel to said frame side.

L'invention concerne une forme de sérigraphie comprenant un tissu de sérigraphie constitué de fils de matière synthétique (12, 14) s'entrecroisant et d'une couche d'émulsion, lesdits fils de matière synthétique étant recouverts d'une couche enveloppe (18) déposée sous vide ou par pulvérisation cathodique, cette couche enveloppe étant à son tour recouverte d'un revêtement métallique (22) produit par galvanisation et portant l'émulsion. L'invention concerne également un dispositif d'impression sur lequel se monte une forme de sérigraphie souple, dans un cadre d'impression, ladite forme de sérigraphie (26) pouvant être fixée et tendue sur deux zone parallèles qui coupent le sens de déplacement d'une raclette mobile ou d'un outil analogue. La forme de sérigraphie est fixée, par insertion de deux barrettes de liaison (28, 44) disposées sur deux bords de plaques parallèles, d'une part à un côté (34) du cadre d'impression (24) et, d'autre part, à une barre de tension (40), ou autre élément mobile analogue, pouvant se déplacer dans le cadre d'impression parallèlement audit côté de cadre.

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