Paper making and fiber liberation – Processes and products – Plural fiber containing
Patent
1986-10-09
1989-06-06
Chin, Peter
Paper making and fiber liberation
Processes and products
Plural fiber containing
162142, 162206, 162207, D21H 512
Patent
active
048368920
ABSTRACT:
A process for preparing linerboards from blends of Kraft chemical pulp with a Kraft high yield pulp comprises forming the pulp blend into sheets, pressing the sheets to a specific solids content and subsequently pressing at a press impulse of at least 7.5 psig-second. The linerboards have the same crush strength as those prepared from Kraft chemical pulps.
REFERENCES:
patent: 3319352 (1967-05-01), Haigh
patent: 3354035 (1967-11-01), Gottwald et al.
patent: 3873412 (1975-03-01), Charters et al.
patent: 4145246 (1979-03-01), Goheen et al.
patent: 4391670 (1983-07-01), Phillips
Anderson et al, "The Effect of Single Nip Press Drying on Properties of Liner of High Yield Kraft Pulp", Pulp and Canada, vol. 77, No. 12, pp. 82, 85-87.
Back et al, "Multistage Press Drying of Paper", Reprint from Svensk Papperstidning, No. 2-1979 82 (1979) pp. 35-39.
Edwards Anne M.
Rosen Allen
Chin Peter
Union Camp Corporation
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