Method for increasing the internal bulk of wet-pressed tissue

Details Method for increasing the internal bulk of wet-pressed tissue Method for increasing the internal bulk of wet-pressed tissue

1994-09-14

1996-04-23

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-uniform, irregular or configured web or sheet

162111, 162112, 162115, 162117, 162206, 162207, D21H 2702

Patent

active

055100023

ABSTRACT:
The internal bulk of a tissue web can be improved during manufacturing of the basesheet by subjecting the tissue web to differential pressure while supported on a coarse fabric at a consistency of about 30 percent or greater. The differential pressure, such as by applying vacuum suction to the underside of the coarse fabric, causes the wet web to deflect into the openings or depressions in the fabric and "pop" back, resulting in a substantial gain in thickness or internal bulk. The method is especially adapted to improve the internal bulk of wet-pressed tissue webs.

REFERENCES:
patent: 4356059 (1982-10-01), Hostetler
patent: 4440597 (1984-04-01), Wells et al.
patent: 4849054 (1989-07-01), Klowak

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