D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 5/00 (2006.01) D21F 1/32 (2006.01) D21F 5/02 (2006.01) D21H 21/02 (2006.01)
Patent
CA 2345471
A method for preventing contamination of a surface of a rotatable drum dryer used in a paper machine comprising the step of continuously supplying a surface treatment agent from a spray nozzle at a spray rate of 0.3 mg/m2 to 500 mg/m2 per min directly onto the surface of the drum dryer which contacts a paper strip fed from the paper machine, wherein the surface treatment agent is prepared by emulsifying oil with a surfactant, wherein the paper strip is not stained by the surface treatment agent containing oil, and wherein the emulsifying oil is exfoliative in the temperature range of 50°C to 120°C and not subject to change in property.
L'invention concerne un procédé de réduction de la pollution d'un sécheur cylindrique dans une machine à papier, le procédé permettant de maintenir une efficacité de séchage et de garantir un effet de réduction de pollution prédéfini à tout moment et pendant une longue période. Plus spécifiquement, l'invention concerne un procédé de réduction de la pollution à la surface d'un sécheur cylindrique utilisé dans une machine à papier, le procédé consistant à appliquer en continu un agent de traitement de surface (P) en quantité constante sur la surface du sécheur (C1) cylindrique rotatif, la bande continue (W) étant produite par la machine à papier.
Maintech Co. Ltd.
Moffat & Co.
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