Manufacture and Production of New Azodyestuffs and Process of Developing them on the Fibre.

摘要

18,073. Newton, P. A., [Farbenfabriken vorm. F. Bayer & Co.]. Aug. 6. Samples furnished. Azo dyes, forming on the material.-Fast shades are obtained by developing with diazotized nitranilines, cotton dyed with trisazo dyes produced by combining 2 : 5 : 7- or 2:8:6-aminonaphthol sulphonic acid or their 1-chlor derivatives with the disazo dyes from diazoazo compounds containing no amino or hydroxy groups and 2 : 21-dinaphthylamine-5 : 51-dioxy-7 : 71-disulphonic acid. Specifications 9433 / 11, and 14,151/12, and 14,152/12, [both in Class 2 (iii), Dyes &c.], are referred to. Reference has been directed by the Comptroller to Specification 21,473/10.