Pressure-sensitive duplicating stencil
AssigneeGestetner Limited
InventorsMichael Maynard, Walter Jones
Life of this patent
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Abstract
Pressure-sensitive duplicating stencils comprise an impregnated sheet of stencil tissue strippably attached by a laminating coating to a backing sheet, which is removed during use of the imaged stencil.
Claims9
In a pressure-sensitive duplicating stencil comprising (1) a sheet of stencil tissue impregnated with a typable stencilisable ink-impervious main plastics coating comprising film-forming material and non-solvent plasticising oil and (2) a backing sheet, the improvement comprising providing, between the impregnated stencil tissue and backing sheet, (3) a typably stencilisable, substantially continuous laminating plastics coating comprising film-forming material and non-solvent plasticising oil the said coating serving to temporarily adhere the impregnated stencil tissue to the backing sheet over substantially the whole of their contacting surfaces, thereby providing a stencil unit in the form of a single sheet.
Dependencies are inferred from the claim text.