Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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blueprint paper

A paper produced from cotton fiber pulp, bleached chemical wood pulp, or combinations thereof, in basis weights of 12 to 30 pounds (17 X 22�). It has a well-formed, fairly smooth surface, good wet tensile strength, and, although well-sized, uniform absorbency. Blueprint paper must not contain chemicals which might have an adverse effect on its sensitizing materials. The paper is sensitized by treating the base paper with chemicals, including potassium ferrocyanide, as well as with iron salts, such as the oxalates and tartrates. (17 )




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