Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

 Previous item  Up One Level Next item

isinglass ( ichthyocoll )

A semi-transparent whitish substance consisting of a very pure form of gelatin, produced from the sounds (swimming bladders) of the sturgeon (Acipenser huso, and other species of Acipenser), found in the Caspian and Black Seas. After removal, the bladders are cut open, soaked in water, spread out and the outer silvery membrane removed by rubbing. The isinglass contains about 80o collagen. It is used as a clarifying agent, in the manufacture of fish glue, and as a size for handmade paper. Its use in recent years has greatly diminished, due to the rise in use of synthetic materials and gelatin. (102 , 195 , 335 )




[Search all CoOL documents]


URL: http://cool.conservation-us.org/don/dt/dt1901.html
Timestamp: Saturday, 19-Nov-2011 13:18:42 PST
Retrieved: Wednesday, 22-Nov-2017 07:33:04 GMT