Method of making a multiple ply paper product containing an oute

Details Method of making a multiple ply paper product containing an oute Method of making a multiple ply paper product containing an oute

1991-02-21

1991-10-29

Chin, Peter

Paper making and fiber liberation

Processes and products

Multi-layer waterlaid webs or sheets

162128, 162129, 162130, 162147, 162189, D21H 1114

Patent

active

050613456

ABSTRACT:
A method of producing multi-ply paper product, such as linerboard. A pulp stock of reclaimed, white office waste paper which contains fillers, such as clay and calcium carbonate, toners and ink is applied as a top ply to a base ply of Kraft pulp stock. Both pulp stocks have a pH in the range of 6.0 to 8.0. A dry strength additive, such as cooked starch, is incorporated in the plies and serves to improve the internal strength of the top ply, as well as improving the bond between the plies.

REFERENCES:
patent: 4356058 (1982-10-01), Fischer et al.
patent: 4381969 (1983-05-01), DeCeuster et al.
patent: 4711702 (1987-12-01), Hood
patent: 4820379 (1989-04-01), Darlington
Heckroth, "What's New . . . In Deinking", Pulp and Paper, vol. 38 No. 37 (Oct. 1964) pp. 56-58.
Casey, Pulp and Paper, 3rd Ed. (1981), vol. III, p. 1499, 1500, 1577-1579, 1914.

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