Paper making and fiber liberation – Processes and products – Non-uniform – irregular or configured web or sheet
Patent
1979-03-09
1980-03-04
Fisher, Richard V.
Paper making and fiber liberation
Processes and products
Non-uniform, irregular or configured web or sheet
162116, 162117, 162207, D21H 502, D21H 524
Patent
active
041916093
ABSTRACT:
Wet-laid paper having, when creped, improved bulk, softness, and flexibility; a relatively large cross-machine-direction to machine-direction stretch ratio; and improved burst to total tensile strength ratio. The paper is characterized by an array of uncompressed zones which are in staggered relation in both the machine direction and the cross-machine direction; and by having each uncompressed zone defined by a picket-like discontinuous lineament of compacted fibrous material. The invention also includes a process for making the paper through the use of an imprinting fabric which is configured to precipitate the requisite compacting of the picket-like lineaments prior to final drying and creping of the paper.
REFERENCES:
patent: 3301746 (1967-01-01), Sanford et al.
patent: 3473576 (1969-10-01), Amneus
patent: 3573164 (1971-03-01), Friedberg et al.
patent: 3707430 (1972-12-01), Costanza et al.
patent: 3905863 (1975-09-01), Ayers
patent: 3908659 (1975-09-01), Wehrmeyer et al.
patent: 3974025 (1976-08-01), Ayers
Braun Fredrick H.
Fisher Richard V.
Slone Thomas J.
The Procter & Gamble & Company
Witte Richard C.
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