Low energy TMP furnish of improved strength by ozonation and pre

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With non-fiber material added to product

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162 13, 162 65, 162150, 162 71, 162175, 162206, D21F 1102

Patent

active

043916708

ABSTRACT:
Press dried paper sheets from certain ozonated high yield pulps are disclosed. Such sheets show substantially improved strength over comparable sheets prepared from non-ozonated pulps and over non-press dried sheets from ozonated pulps.

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Soteland et al., Norsk Skogindustri, 6/74, pp. 165-169.
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Z-Direction Restraint, A New Approach to Papermaking, USDA Forest Service, Research Paper, FPL 256, 1975.
An Investigation of the Effects of High Press Wet Pressing on the Physical Properties of Dry Pulp Sheets, Pease and Rankin, vol. 15, No. 7, 7/62, Tappi.
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Multistage Press Drying of Paper, Back and Anderson, Swedish Forest Products Research Laboratory, Stockholm, Svensk Papperstidning No. 2-1979 82 (1979) 35-39.

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