Screen-printing frame with plastic side bars bondable to fabric

Details Screen-printing frame with plastic side bars bondable to fabric Screen-printing frame with plastic side bars bondable to fabric

1977-10-03

1980-02-05

Eickholt, E. H.

Printing

Stenciling

Stencils

1011284, B41F 1536

Patent

active

041866606

ABSTRACT:
For screen printing, in which the screen fabric is tightly stretched across a frame structure, the frame, or at least its side bars, are formed of a plastic material which can be surface-softened by means of solvent or heat for bonding the fabric to it, thus providing the bonding agent in situ. The fabric is initially stretched over the face of the frame structure. The surface of the frame structure is softened, after which, to achieve the bonding, either a solvent is applied to the face surface through the fabric or this surface is heated through the fabric. After completion of the printing job, the fabric may be pulled away from the frame and the frame and fabric repeatedly reused. The removed screen fabric may be stored for future use. Preferably the frame structure is modular, with the side bars removably fitted to corner pieces, so that the side bars may readily be cut to the lengths required for particular screen sizes from long extruded pieces instead of carrying in stock a wide variety of unalterable frames. If the side bars are so long that flexing under the tension of the fabric becomes a problem, they may be prestressed to resist deformation due to fabric tension.

REFERENCES:
patent: 2545277 (1951-03-01), Hannah et al.
patent: 2989788 (1961-06-01), Kessler
patent: 3211089 (1965-10-01), Messerschmidt
patent: 3214314 (1965-10-01), Rowbottom

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