Burnt sugar

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A dark brown colorant that previously used to give an aged appearance to new or recently cleaned book leaves. The burnt sugar, or caramel, is added to the sizing bath. This practice is no longer in use because it adds a food product to the pages that may attract insects or increase biological growth.

Synonyms and Related Terms

caramel; sugar coloring

Physical and Chemical Properties

Soluble in water.

Resources and Citations

  • Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
  • Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
  • Meredith Montague, contributed information, 1998