Process for producing and perforating an aqueous solvent soluble

Details Process for producing and perforating an aqueous solvent soluble Process for producing and perforating an aqueous solvent soluble

1996-03-29

1998-02-17

Funk, Stephen R.

Printing

Stenciling

Stencils

1011284, B41N 124

Patent

active

057181705

ABSTRACT:
A process for producing a stencil printing sheet by laminating a water-soluble resin layer formed on a non-adhesive substrate to a porous substrate with an adhesive or by heat adhesion. The non-adhesive substrate is removed from the water-soluble resin layer to obtain a stencil printing sheet. The water-soluble resin layer is perforated by a single application of an aqueous solvent onto the water-soluble resin layer, such that the solution which dissolves the water-soluble resin layer permeates into the interior of the porous substrate.

REFERENCES:
patent: 628315 (1899-07-01), Haberstroh
patent: 1606217 (1926-11-01), Gestetner
patent: 4304836 (1981-12-01), Cheema et al.
patent: 4550660 (1985-11-01), Sato et al .
patent: 4961377 (1990-10-01), Bando et al.
patent: 5174203 (1992-12-01), Maeda

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