Control of detachment of a paper web from a roll using heat

Details Control of detachment of a paper web from a roll using heat Control of detachment of a paper web from a roll using heat

1988-01-25

1990-04-24

Hastings, Karen M.

Paper making and fiber liberation

Processes and products

Running or indefinite length work forming and/or treating...

162207, 162359, 1623601, 100 38, 219 10492, D21F 302

Patent

active

049197592

ABSTRACT:
Control of detachment of a web from a roll, such as a paper web from a press roll in a paper machine, in particular a so-called closed press section provided with a smooth-faced press roll. The temperature of the surface of the smooth-faced press roll is adjusted, so that adhesion between the roll surface and the paper web to be detached is influenced or affected. Thereby, the detaching angle and/or the detaching tension of the paper web, is set within an optimal range. Temperature profile of the smooth-faced press roll in the axial direction thereof, can also be adjusted with a view to controlling the detaching of the web.

REFERENCES:
patent: 4351700 (1982-09-01), Dove
patent: 4525241 (1985-06-01), Laapotti
patent: 4691449 (1987-09-01), Wiberg
patent: 4738752 (1988-04-01), Busker et al.

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