Calvert, F. (Frederick) Crace', 1819-1873, Stenhouse, John, Groves, Charles Edward, 1841-1920 · Manchester : Palmer & Howe · leaf 499
y be considered as terminatedwhen a drop of the mixture dissolves in dilute aqueousammonia with a deep red colour. It is then poured intowater and treated in the manner above described. Sulphuric acid is not essential to the production of thiscolour; it merely acts as a dehydrant, and may… … AURIN. Corallin gives a variety of fine red shades, which areeasily modified by the use of proper reagents, but itsliability to change renders it somewhat difficult to fix thecolour on the fabrics to which it is applied. It may,however, be printed with albumen or lactarine: 8 ozs. of 462 DYEING AND…
Dyes and dyeing · Calico-printing
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