Chemical resistant underlayer for positive-working printing plates

US6528228B2 · kind B2 · utility

Assignee

• Kodak Polychrome Graphics Company Ltd. · US

Inventors

• Celin-Savariar Hauck · Badenhausen, DE
• Gerhard Hauck · Badenhausen, DE

Key dates

• Filing date: Dec 5, 2000
• Grant date: Mar 4, 2003
• Expiry date: Feb 13, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41C2210/262
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Multilayer photoimageable elements, useful for forming lithographic printing members, are disclosed. The elements comprise a support, a top layer, and a chemical resistant underlayer. The underlayer is resistant to aggressive washes, such as a UV wash. In one embodiment, the underlayer comprises a copolymer of N-substituted maleimide, methacrylamide, and methacrylic acid. A process for preparing a lithographic printing member is also disclosed.