University of Technology

Reed Packaging Limited

John N Birkett

Stuart Pugh

Douglas G Smith

Tet C Tai

Richard G Stibbs

Leslie R Parr

Chee M Lee

There is provided a web printing apparatus (20 ) comprising a web feed means (4, 5, 6), two or more printing stations (21, 22) arranged to print radiation-curable ink onto a web (3) and a primary radiation source (11) arranged to radiate said web with an ink-curing radiation after said web has passed a first said printing station (21) and before said web passes the subsequent printing station (22), wherein said apparatus further comprises a plurality of secondary radiation sources (13, 14) each extending part way across the width of said web and each being arranged to radiate a part of said width after said web has passed said first printing station and before it has passed said subsequent printing station. By controlling the positioning of the secondary radiation sources, generally UV sources, and the radiation emission levels of the primary (11) and secondary (13, 14) radiation sources, wastage may be reduced and efficient ink curing can be achieved with lower power consumption and with lower press operating tempertures than is possible with the use of only the primary radiation sources.

Printing presses

Adjustable support for an optical or other instrument

Growing community of inventors

Aylesbury, United Kingdom

John N Birkett