System for sizing paper and cardboard

Details System for sizing paper and cardboard System for sizing paper and cardboard

1995-06-07

1997-05-06

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621643, 1621646, 162172, 162179, 162194, 162196, 162201, 162231, 53425, 53426, 2065243, 2065246, 229902, 493 51, 493 53, 493148, 493162, 493340, 493467, D21H 2116

Patent

active

056267193

ABSTRACT:
A process for increasing the resistance of the cut edges of liquid packaging board to penetration by hot hydrogen peroxide, comprising adding to an aqueous pulp slurry at a neutral to alkaline pH, either separately or in preblended form an aqueous emulsion of a cellulose-reactive size, a non-cellulose-reactive size selected from the group consisting of waxes, bis-stearamides, and fatty acid derivatives, and a thermosetting resin that is capable of covalent bonding to cellulose fibre and self-cross-linking.

REFERENCES:
patent: 3922243 (1975-11-01), Aldrich
patent: 4017431 (1977-04-01), Aldrich
patent: 4522686 (1985-06-01), Dumas
patent: 4859244 (1989-08-01), Floyd
patent: 4919724 (1990-04-01), Cenisio et al.
patent: 4927496 (1990-05-01), Walkden
patent: 5032226 (1991-07-01), Winiker
patent: 5190584 (1993-03-01), Ruffini
Translation of JP87395/58:1983 (Tokkai) mentioned above.

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