Paper making and fiber liberation – Processes and products – Non-uniform – irregular or configured web or sheet
Reexamination Certificate
2008-07-15
2010-10-05
Hug, Eric (Department: 1791)
Paper making and fiber liberation
Processes and products
Non-uniform, irregular or configured web or sheet
C162S111000, C162S117000, C428S153000
Reexamination Certificate
active
07807022
ABSTRACT:
A method of making soft, strong, high bulk tissue is disclosed. The method includes pre-conditioning a wet web by straining the wet web in the cross-machine direction prior to transferring the wet web to a through drying fabric. The pre-conditioned web provides improved sheet softness and conforms more readily to the surface contour of the through drying fabric, thereby creating greater caliper (bulk) in the resulting dried sheet. The bulk is maintained during a subsequent creping step by maintaining the dried sheet in registration with the through drying fabric when the dried sheet is applied to the surface of the creping cylinder.
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TAPPI Official Test Method T 402 om-93, “Standard Conditioning and Testing Atmospheres for Paper, Board, Pulp Handsheets, and Related Products,” published by the TAPPI Press, Atlanta, Georgia, revised 1993, pp. 1-3.
Tappi Official Test Method T 411 om-89, “Thickness (Caliper) of Paper, Paperboard, and Combined Board,” published by the TAPPI Press, Atlanta, Georgia, revised 1989, pp. 1-3.
Berube Stephanie Lee
Hada Frank Stephen
Hansen Lacey Leigh
Hermans Michael Alan
Mathews Jeffrey David
Croft Gregory E.
Hug Eric
Kimberly--Clark Worldwide, Inc.
Sullivan Michael J.
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