Paper making and fiber liberation – Processes and products – Non-uniform – irregular or configured web or sheet
Patent
1996-03-01
1997-03-25
Czaja, Donald E.
Paper making and fiber liberation
Processes and products
Non-uniform, irregular or configured web or sheet
162115, 162290, 162291, 162362, D21H 2702
Patent
active
056140614
ABSTRACT:
An apparatus and process for making the fibrous structure, having three four, and more regions. The process is similar to known papermaking techniques, but comprises the additional steps of applying a differential pressure to selected regions of the fibrous structure which are not coincident with the regions of the fibrous structure defined by the apparatus in prior steps of the papermaking process. The selective application of noncoincident differential pressure to selected regions of the fibrous structure may result in densification or dedensification of such regions.
REFERENCES:
patent: 1699760 (1929-01-01), Sherman
patent: 2771363 (1956-11-01), Fish
patent: 2862251 (1958-12-01), Kalwaites
patent: 2902395 (1959-09-01), Hirschy et al.
patent: 3025585 (1962-03-01), Griswold
patent: 3034180 (1962-05-01), Greiner et al.
patent: 3072511 (1963-01-01), Harwood
patent: 3081500 (1963-03-01), Griswold et al.
patent: 3081512 (1963-03-01), Griswold
patent: 3081514 (1963-05-01), Griswold
patent: 3081515 (1963-05-01), Griswold et al.
patent: 3491802 (1970-01-01), Mortensen et al.
patent: 3681182 (1972-08-01), Kalwaites
patent: 3681183 (1972-08-01), Kalwaites
patent: 3881987 (1975-05-01), Benz
patent: 4191609 (1980-03-01), Trokhan
patent: 4528239 (1985-07-01), Trokhan
patent: 4529480 (1985-07-01), Trokhan
patent: 4840829 (1989-06-01), Suzuki et al.
patent: 4921034 (1990-05-01), Burgess et al.
patent: 5098519 (1992-03-01), Ramasubramanian
patent: 5126015 (1992-06-01), Pounder
Veratec Sales Presentation by Zoltan Mate, May 8, 1991--Wet Laid Hydroentangled Formation.
Phan Dean Van
Trokhan Paul D.
Czaja Donald E.
Huston Larry L.
Linman E. Kelly
Nguyen Dean T.
Rasser Jacobus C.
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