Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste
Patent
1993-09-30
1997-01-14
Czaja, Donald E.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Waste paper or textile waste
162 7, 162 8, 162 78, D21C 502
Patent
active
055935435
ABSTRACT:
Process for repulping wet strength paper containing at least one wet strength resin in which initial breakdown of the paper is conducted at a first pH and the substantial completion of the conversion to fibers is conducted at a second pH which is higher than the first pH.
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Chlorine-free reagents for repulping alkaline-curing wet strength broke, by H. H. Espy, TAPPI Procedings, 190 Papermakers conference, pp. 147-149.
H. H. Espy et al., "Persulfates as Repulping Reagents for Neutral/Alkaline Wet-strength Broke", Tappi Journal, vol. 76, No. 2, pp. 139-141 (Feb. 1993).
P. C. Kapadia et al., "A Non-Chlorine Repulping Aide", (1992 Tappi Papermakers Conference).
Balos Barbara
Clungeon Nancy S.
Fischer Stephen A.
Patterson James V.
Rodriguez Jose M.
Czaja Donald E.
Fortuna Jos'e A.
Grandmaison Real J.
Henkel Corporation
Jaeschke Wayne C.
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