FIELD: paper and pulp industry. SUBSTANCE: method involves paper mass preparing, biocidal addition and paper fabric making. Biocidal used: polyhexamethyleneguanidine phosphate at amount 1.5-2.5% of air-dry fiber mass. Invention can be used for protection of documents made on paper base. EFFECT: improved method of paper making. 1 tbl
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Authors
Dates
1997-05-20—Published
1995-02-14—Filed