| 摘要 |
FIELD: paper making. SUBSTANCE: method consists in contacting paper surface with coating composition including fluorescent whitening agent having formulawhere M is hydrogen, alkali metal, ammonium, or magnesium, or contacting paper in glue press with composition including above said agent and auxiliary agent selected from the group including binding agent, dispersing agent, and/or emulsifier. EFFECT: improved composition for process. |
