Production of Grey Basic Colouring Matters by the Action ofchlorate of Nitrosodimethylaniline orate of Nitrosodiethylaniline upon 1.5 Dioxynaphthalin and upon 12 Tetroxydinaphthyl.
Year: 1890

page_text: Date of Application, 16th Apr., 1890
Complete Specification Left, 23rd D-c., 1890--Accepted, 24th Jan., 1891
PROVISIONAL SPECIFICATION.
[Communicated from abroad by THE FARBWERKE VORMALS MEISTER LUOIUS AND
BRUNING, of Hoechst-am-Maine, in the Empire of Germany.]
Production of Grey Basic Colouring Matters by the Action of
Hydrochlorate of Nitrosodimethylaniline or Hydrochlorate
of Nitrosodiethylaniline upon 1.5 Dioxynaphthalin and upon
12 Tetroxydinaphthyl.
I, OLIVER IMRAY, of No. 28 Southampton Buildings, Chancery Lane, in the
County of London, Fellow of the Institute of Patent Agents, do hereby declare the
nature of this invention to be as follows:-
:-
My foreign correspondents have discovered that by the action of hydrochlorates of
dialkylised nitrosoanilines upon 1.5 dioxynaphthalin and upon 1-2 tetroxydinaphthyl
are produced grey basic colouring matters which may be employed for dyeing and
printing tannin-mordanted cotton.
EXAMPLE 1.
16 parts by weight of 15 dioxynaphthalin, 18.6 parts by weight of hydrochlorate
of nitrosodimethylaniline, and about 100 parts by weight of alcohol are heated to
about 50° C. until complete disappearance of the nitrosodimethylaniline.
The mass of the reaction is poured into water and common salt is added, whence
the colouring matter will separate. It is filtered and washed and may then be used
directly for dyeing.
EXAMPLE 2.
16 parts by weight of 1-2 tetroxydinaphthyl (produced from beta-naphthoquinone)
with 186 parts by weight of nitrosodimethylaniline are treated in exactly the same
manner as described in the preceding example for 15 dioxynaphthalin.
The colouring matter obtained is of easier solubility than the one prepared from
15 dioxynaphthalin.
The process is exactly the same when hydrochlorate of nitrosodiethylaniline is
substituted for the nitrosodimethylaniline.
Dated this 16th day of April 1890.
זתנז:
n TAD TY
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Agents for the Applicant.
COMPLETE SPECIFICATION.
Production of Grey Basic Colouring Matters by the Action of
Hydrochlorate of Nitrosodimethylaniline or Hydrochlorate
of Nitrosodiethylaniline upon 15 Dioxynaphthalin and upon
12 Tetroxydinaphthyl.
I, OLIVER IMRAY, of No. 28 Southampton Buildings, Chancery Lane, in the County
of London, Fellow of the Institute of Patent Agents, do hereby declare the nature
of this invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:
--
My foreign correspondents have discovered that by the action of hydrochlorates of
dialkylised nitrosoanilines upon 15 dioxynaphthalin and upon 12 tetroxydinaphthyl
are produced grey basic colouring matters which may be employed for dyeing and
printing tannin-mordanted cotton.

page_text: EXAMPLE 1.
16 parts by weight of 15 dioxynaphthalin, 18-6 parts by weight of hydrochlorate
of nitrosodimethylaniline, and about 100 parts by weight of alcohol are heated to
about 50° C. until complete disappearance of the nitrosodimethylaniline.
The mass of the reaction is poured into water and common salt is added, whence
the colouring matter will separate. It is filtered and washed and may then be used
directly for dyeing.
EXAMPLE 2.
16 parts by weight of 12 tetroxydinaphthyl (produced from beta-naphthoquinone)
with 186 parts by weight of nitrosodimethylaniline are treated in exactly the same
manner as described in the preceding example for 15 dioxynaphthalin.
The colouring matter obtained is of easier solubility than the one prepared from
15 dioxynaphthalin.
The process is exactly the same when hydrochlorate of nitrosodiethylaniline is
substituted for the nitrosodimethylaniline.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The production of grey basic colouring matters by the action of hydrochlorate
of nitrosodimethylaniline or hydrochlorate of nitrosodiethylaniline upon 15 dioxy-
naphthalin or 12 tetroxydinaphthyl produced from betanaphthoquinone substantially
as described.
2. The grey colouring matters produced as above set forth.