Alum spots

Description

Embedded crystals of Alum from incompletely dissolved solutions used during sizing. Alum is acidic and can produce physical defects such as holes and powdery regions in the final product.

Authority

E.J.LaBarre, Dictionary and Encyclopedia of Paper and Paper-making, Swets & Zeitlinger, Amsterdam, 1969

Alum spots

Description

Authority

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Alum spots

Description

Authority

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