Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With non-fiber material added to product
162 13, 162 65, 162150, 162 71, 162175, 162206, D21F 1102
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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Bright Royal E.
International Paper Company
Smith William F.
Zielinski W. T.
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