Method for dewatering a tissue web

Details Method for dewatering a tissue web Method for dewatering a tissue web

1978-07-06

1980-12-09

Fisher, Richard V.

Paper making and fiber liberation

Processes and products

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

34 16, 162290, 162306, D21F 514

Patent

active

042382840

ABSTRACT:
In a tissue paper making machine, a method for dewatering a tissue web without wet pressing and transferring the web onto a flow through drying cylinder including conducting a tissue web onto a pick-up fabric formed of felt and dewatering the web, without wet pressing, into the pick-up felt through the application of suction and capillary forces until the web has sufficient dry matter content to be passed to a flow through drying cylinder. The web is transferred to a flow through wire which passes over the web carrying pick-up felt at a suction roller by the application of suction over a narrow zone, the web being secured to the flow through wire by the application of additional suction over a broader suction zone.

REFERENCES:
patent: 2537129 (1951-01-01), Goodwillie
patent: 3303576 (1967-02-01), Sisson
patent: 3560333 (1971-02-01), Douglas et al.
patent: 3816941 (1974-06-01), Holik et al.
patent: 3821068 (1974-06-01), Shaw
patent: 4036684 (1977-07-01), Schmitt et al.
patent: 4055461 (1977-10-01), Turunen
Gardiner et al., "Advances in Flow-Through Drying Techniques", Das Papier, vol. 30:10A, 1976, pp. V118-V127.

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