Recording material
AssigneeProcess Shizai Co., Ltd.
InventorTakashi Kashiwagi
Life of this patent
Estimating the term…
Abstract
A recording material comprising a transparent support having formed thereon a recording layer containing a thermally coagulatable proteinaceous compound, the recording layer having an average optical density throughout the wavelength region of about 350 mm to 450 nm of at least about 1.5 is disclosed, which is suitable for preparing a reprographic material such as a photmask by flash exposure in heat conducting relation with an original.
Claims1
A process for forming a photomask which comprises flash exposing in heat conducting relation with an original a thermal recording material comprising a transparent support having formed thereon a recording layer containing a thermally coagulatable proteinaceous compound, wherein a coloring material is present in said recording layer in an amount such that said recording layer has an average optical density in the wavelength region of 350 nm to 450 nm of at least about 1.5, and removing the portions of the recording layer in the thermal recording material which have not been rendered insoluble by said flash exposing, whereby an image is formed in said recording layer.
Dependencies are inferred from the claim text.