Paper making and fiber liberation – Processes and products – Non-uniform – irregular or configured web or sheet
Patent
1997-03-13
1999-03-23
Chin, Peter
Paper making and fiber liberation
Processes and products
Non-uniform, irregular or configured web or sheet
162112, 162113, B31F 112
Patent
active
058854150
ABSTRACT:
The present invention relates to biaxially undulatory single-ply and multi-ply tissues, single-ply and multi-ply towels, single-ply and multi-ply napkins and other personal care and cleaning products as well as novel creping blades and novel processes for the manufacture of such paper products. The present invention is directed to tissue and towel product having highly desirable bulk, appearance and softness characteristics produced by utilizing a novel undulatory creping blade having a multiplicity of serrulations formed in its rake surface which presents differentiated creping angles and/or rake angles to the web as it is being creped. The invention is also directed to a novel blade having an undulatory rake surface having trough-shaped serrulations in the rake surface of the blade. The undulatory creping blade has a multiplicity of alternating serrulated sections of either uniform depth or a multiplicity of arrays of serrulations having non-uniform depth.
REFERENCES:
patent: 1548783 (1925-08-01), Lorenz
patent: 1582842 (1926-04-01), Lorenz
patent: 3044228 (1962-07-01), Peterson
patent: 3163575 (1964-12-01), Nobbe
patent: 3507745 (1970-04-01), Fuerst
Awofeso Anthony O.
Harper Frank D.
Kershaw Thomas N.
Marinack Robert J.
Chin Peter
Fort James Corporation
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