FIELD: textile, paper.
SUBSTANCE: method includes formation of composition, containing water, raw starch and powder optical refining agent. Boiling of composition. Application of finished composition, at least on one surface of paper or cardboard base in coating press. Then base is dried. In another version of method composition is boiled at the temperature up to 299°F inclusive.
EFFECT: improved brightness of paper and cardboard.
7 cl, 4 dwg, 8 tbl, 1 ex
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