作者: John Derek Rushmere
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摘要: An improvement in a papermaking process which an aqueous paper furnish containing cellulosic pulp, and optionally also mineral fillers is formed dried, the being addition of drainage retention aid comprising water soluble alkali metal polyaluminosilicate microgels from reaction polysilicic acid aluminate, having alumina/silica mole ratio greater than about 1/100, together with cationic polymer selected group consisting starch, guar polyacrylamide.