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公开(公告)号：GB840804A
公开(公告)日：1960-07-13
申请号：GB3536656
申请日：1956-11-19
Applicant: HOECHST AG
Inventor： FICKEL PERCY , RIBKA JOACHIM
IPC: C09B29/20
Abstract: 2-Ethyl-5-nitroaniline is made by nitrating 2-ethylaniline in concentrated sulphuric acid. Specification 210,463 is referred to.ALSO:The invention comprises the red water-insoluble dyestuff obtainable by diazotising 2-ethyl-5-nitroaniline and coupling with 2-(21, 31-hydroxynaphthoylamine)-naphthalene. Coupling may be effected in substance, on the fibre or on a substratum. Vegetable fibres e.g. regenerated cellulose, silk and synthetic fibres such as acetyl-cellulose and polyamide fibres, may be dyed. Examples are provided of the preparation of the dyestuff and its use in dyeing and printing processes. Specification 210,463 is referred to.
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