US 2003/0164100 A1 · Multi-frame screen printing

Abstract

A method of making screen printing frames can include, in certain illustrative embodiments, affixing at least two frames to one another, applying a masking film to both frames, exposing the frames, removing the unhardened emulsion in the meshes, and separating the frames from one another for deployment in a screen printing apparatus. This exemplary process can be used to create images in substantially complete registration with one another on frames having different mesh counts. Stated another way, these embodiments permit the use of multiple frames to print different inks through different meshes in a single pass to form images in substantially complete registration with one another. In certain preferred embodiments, a screen printing apparatus can include two frames, each having a mesh with a different pitch, wherein the frames are adapted to receive different inks and held in fixed register during a screen printing operation.

Claims19

Dependent claims

A process for preparing screens comprising:

providing a first screen having a first pitch and adapted to receive a first ink;
providing a second screen having a second pitch and adapted to receive a second ink;
securing the screens relative to one another;
applying a mask to the first and second screens, said at least one mask including masking portions aligned with areas of screen through which images are to be printed through the screens;
exposing said first and second screens through the mask;
and
removing the mask from the exposed screens;
whereby the first and second screens are patterned with images in substantial registration.

5 more elements

Dependencies are inferred from the claim text.

Multi-frame screen printing

Life of this patent

Multi-frame screen printing

Life of this patent

Abstract

Claims19