Film Transfer Press - A Versatile Coating System, 1996 Metered Size Press Forum Proceedings

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Klaus M. Stränger, Jagenberg Papiertechnik GmbH

The use of an applicator nozzle with size press rolls was first tried out in 1982 on a pilot coater of 20” (500 mm) width. The main goals of these tests were:

• to apply a water-based starch solution of higher solids content than was possible at the time using the conventional size press
• to improve the operating conditions of the size press, particularly at speeds over approx. 2,620 fpm (800 m/min.), by eliminating the pond at the roll nip

These tests showed very positive results and this principle became the ultimate in surface sizing of paper at high operating speeds. Attempts made at the same time to pigmentize paper did not indicate that better results would be possible with the film transfer press than could already be obtained with other roll-coating systems such as the gate-roll coater, the Massey coater etc. However, as new insight was gained into the mechanics of pre-metering on a roll surface and applying a pre-metered film to a substrate in the roll nip, and as market demands within the paper industry itself underwent change, new areas of application also emerged for the Filmpress. The purpose of this paper is to present and discuss some of these new applications.