Patent ID: 7323086
Filing Date: 2008-01-29
Classification: D21F,D21H,Y10S

Abstract:
1. A method of preventing contamination of a canvas for pressing a paper strip against a surface of drum-dryers used for drying the paper strip in a paper machine, whereby a silicone oil is emulsified with a surfactant, said emulsified silicone oil is diluted with water immediately before spraying, said water being heated to a temperature in the range of 50 to 80° C., and said diluted silicone oil is then continuously supplied at a spray rate of 0.1 to 200 mg/m 2 per minute to a surface of canvas rolls for guiding the canvas, in a stage of operation prior to the paper strip being pressed into contact with the canvas as well as the drum-dryers, while the paper strip is being fed by operation of the paper machine.