Process for sizing in the production of paper, cardboard, paperb

Details Process for sizing in the production of paper, cardboard, paperb Process for sizing in the production of paper, cardboard, paperb

1989-02-28

1991-06-25

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

162166, 162167, 162172, 162174, 162175, 162179, 162180, D21H 1749

Patent

active

050264575

ABSTRACT:
The present invention provides a process for sizing in the production of paper, cardboard, paperboard and other cellulose-containing materials with and without filling materials and/or pigments by natural or synthetic sizing agents under neutral to weakly basic pH conditions without the use of aluminum salts, wherein sizing is carried out with a combination of natural or synthetic sizing agents with a cationic dicyandiamide resin.

REFERENCES:
patent: 3016325 (1962-01-01), Pattilloch
patent: 3957574 (1976-05-01), Anderson
patent: 4240935 (1980-12-01), Dumas
patent: 4299654 (1981-11-01), Tlach et al.
Casey, Pulp and Paper, 3rd ed., vol. III (1981), pp. 1594-1599.

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