METHOD FOR PRODUCING DECORATIVE FILM ON PAPER BASE Russian patent published in 1995 - IPC

FIELD: paper production. SUBSTANCE: method involves unwinding paper roll, impregnating the paper fabric mainly with ureaformaldehyde resin and feeding the paper fabric to drying chamber. The fabric is dried in the drying chamber by supplying, heating and distributing drying gas medium in the lower part of the drying chamber. Steam and gas mixture is discharged from the upper part of the drying chamber. Decorative film is wound in rolls. Before discharging the steam-and-gas mixture, it passes through the steam condensation device placed immediately above the fabric surface. The condensate is removed, drying intensity is controlled by selective change of flow rate and/or parameters of cooling liquid of condensation device. EFFECT: improved quality of the film. 2 dwg