Browse Prior Art Database

WATERLESS LITHOGRAPHIC PRINTING MASTERS

IP.com Disclosure Number: IPCOM000022836D
Original Publication Date: 1976-Feb-29
Included in the Prior Art Database: 2004-Mar-26
Document File: 2 page(s) / 159K

Publishing Venue

Xerox Disclosure Journal

Abstract

A process is provided for using a high quality 1itho~ graphic metal master to prepare a waterless lithographic master, The imaged metal master is wetted in the non~ imaged areas with a fountain solution and then contacted with an acrylic resin in a suitable solvent to wet the image areas, The wet image is then brought into contact with a polyblock silicone plate to image the silicone plate, The acrylic is found to adhere well to the polyblock silicone, The silicone master can be employed in the direct printing mode without the requirement of an offset roller, and the image is in the proper sense because it was formed from a lithographic plate which was previously used in the offset mode,

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

W2~TERLESS LITHOGRAPHIC Proposed Classification
PRINTING N?~STERS U, S Cl 101
Richard C, Vock Int, Cl, B41f
Alan B, Amidon

A process is provided for using a high quality 1itho~
graphic metal master to prepare a waterless lithographic
master, The imaged metal master is wetted in the non~
imaged areas with a fountain solution and then contacted
with an acrylic resin in a suitable solvent to wet the

image areas, The wet image is then brought into contact
with a polyblock silicone plate to image the silicone

plate, The acrylic is found to adhere well to the
polyblock silicone, The silicone master can be employed
in the direct printing mode without the requirement of
an offset roller, and the image is in the proper sense
because it was formed from a lithographic plate which

was previously used in the offset mode,

Volume 1 Number 2 February 1976 23

[This page contains 1 picture or other non-text object]

Page 2 of 2

a

24 XEROX DISCLOSURE JOURNAL

volume 1 Number 2 February 1976

[This page contains 1 picture or other non-text object]