1895 Patent No. 12,162 destruction of beta naphthol on fibre, Ferbwerke, Hoechst

Patent No. 12,162 A.D.1895 Process for the Partial or Total Destruction of Beta Naphthol on the Fibre by Oxidation by Means of Persulphates.  [Communicated from abroad by The Ferbwerke, vormals Meister Lucius and Bruning of Hoechst a/ Main, in the Empire of Germany, Chemical Manufacturers]

"I, Oliver Imray of 28 Southampton Buildings, Chancery Lane, in the County of London, Chartered Patent Agent, do hereby declare the nature of this invention to be as follows: The production of insoluble napthol azo colouring matters on cotton fibre has attained some extent and importance not only by the discovery of a whole series of very suitable amido bases, but also by the institution of simple and suitable dyeing and printing processes..."

5 pages of text which have been disbound from a larger volume.

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