Offset lithographic combination master blanket sheet and...

Details Offset lithographic combination master blanket sheet and... Offset lithographic combination master blanket sheet and...

B - Operations, Transporting

41

M

101/121, 101/61,

B41M 1/06 (2006.01) B41C 1/10 (2006.01)

Patent

CA 1057119

OFFSET LITHOGRAPHIC COMBINATION MASTER BLANKET SHEET AND METHOD OF USE ABSTRACT OF THE INVENTION A combination master/blanket printing sheet for use with a lithographic offset duplicating press includes a matter layer comprising material having hydrophilic properties which is imagable to provide pre-selected oleophilic areas for receipt of printing inks and a blanket layer of hydrophobic-oleophilic material suitable for receiving and carrying thereon an inked image transferred thereto by contact with a member carrying such image. In a preferred embodiment of the printing sheet the master and blanket layers are applied by coating or other suitable techniques to opposite surfaces of a base or support layer. The printing sheet is usable in the offset printing process both as a "master" sheet, when properly imaged on the master layer, and a "blanket".

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