Production of Azo Colouring Matters.
Year: 1890

page_text: Date of Application, 22nd Dec., 1890
Complete Specification Left, 22nd Sept., 1891-Accepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
[Communicated from abroad by THE FARBWERKE VORMALS
MEISTER
LUCIUS AND BRUNING, of Hoeschst /Main, Germany, Chemical Manu-
facturers.]
Production of Azo Colouring Matters.
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 combination of the diazo-
diphenylamine and its homologues with certain oxynaphthalinsulphonic acids,
pure blue to blue violet colouring matters are obtained. The following is an
example of process for producing these colouring matters.
1 molecule of an oxynaphthalinsulphonic acid and an ample quantity of an
alkali, for example 2 molecules of soda, are dissolved in such quantity of water
as to form a solution of about 20 per cent.
To this solution, kept at ordinary temperature and well agitated, an equivalent
quantity of the diazo-diphenylamine sulphate obtained in the usual manner (for
example in the manner described in the Annalen der Chemie 243, page 281) is
added and the whole is kept agitated for 24 hours. At this stage of the operation
the colouring matter is formed, and it is obtained by precipitating with salt and
treating in the usual way.
For the soda may be substituted ammonia or other alkali, or it might be
acetate of sodium.
The colouring matters obtained from these diazo compounds are the first blue azo
colouring matters, the shade of which is not due to those chromophores to which
the shades of the diazo- and tetrazo-colouring matters are due.
When dyed on wool in acid bath these colours are adapted for enlevage or
discharging.
The production of these blue to blue violet colouring matters may be effected by
combination of the diazo compounds of the following bases:
Diphenylamine,
ורד
PROVISIONAL SPECIFICATION.
[Communicated from abroad by THE FARBWERKE VORMALS MEISTER
LUCIUS AND BRUNING, of Hoeschst /Main, Germany, Chemical Manu-
facturers.]
Production of Azo Colouring Matters.
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 combination of the diazo-
diphenylamine and its homologues with certain oxynaphthalinsulphonic acids,
pure blue to blue violet colouring matters are obtained. The following is an
example of process for producing these colouring matters.
1 molecule of an oxynaphthalinsulphonic acid and an ample quantity of an
alkali, for example 24 molecules of soda, are dissolved in such quantity of water
as to form a solution of about 20 per cent.
To this solution, kept at ordinary temperature and well agitated, an equivalent
quantity of the diazo-diphenylamine sulphate obtained in the usual manner (for
example in the manner described in the Annalen der Chemie 243, page 281) is
added and the whole is kept agitated for 24 hours. At this stage of the operation
the colouring matter is formed, and it is obtained by precipitating with salt and
treating in the usual way.
For the soda may be substituted ammonia or other alkali, or it might be
acetate of sodium.
The colouring matters obtained from these diazo compounds are the first blue azo
colouring matters, the shade of which is not due to those chromophores to which
the shades of the diazo- and tetrazo-colouring matters are due.
When dyed on wool in acid bath these colours are adapted for enlevage or
discharging.
The production of these blue to blue violet colouring matters may be effected by
combination of the diazo compounds of the following bases:
Diphenylamine,
Pheny Holy Fami
Ditolylamine
and their isomeres and homologues with the following sulphonic acids, viz. :—
the beta-naphtholmonosulphonic acid described in the German Patent
No. 42112,
the beta naphtholdisulphonic acid R of the German Patent No. 3229,-
the beta naphtholdisulphonic acid of the German Patent No. 44079,-
the naphtholdisulphonic acid of the German Patent No. 38281,-
the naphtholdisulphonic acid E of the German Patent No 45776 or the
monamide of this acid,-
the naptholtrisulphonic acid of the German Patent No. 40893,-
the naphtholtrisulphonic acid, which is obtained by nitration, reduction,
treatment with nitrous acid and boiling with acidulated water, from
the naphthalintrisulphonic acid prepared by sulphonation of naphthalin

page_text: the dioxynaphthalinmonosulphonic acid of the German Patent No. 42261,-
the dioxynaphthalinmonosulphonic acid of the German Patent No. 41934,-
the dioxynaphthalin monosulphonic acids which are obtained by melting
together with caustic alkalies the following naphtholdisulphonic
acids, riz. :-
the naphtholdisulphonic acids R & G of the German Patent No. 3229,-
the naphtholdisulphonic acids E of the German Patent No. 45776,-
the naptholdisulphonic acids of the German Patent No. 40571,
the dioxynaphthalindisulphonic acid of the German Patent No. 40893,
the dioxynaphthalindisulphonic acids, which are obtained by melting
together with caustic alkalies the following naphtholtrisulphonic
acids, viz.
the naphtholtrisulphonic acid of the German Patent No: 22038,-
the naphtholtrisulphonic acid which is obtained by nitration, reduction,
treatment with nitrous acid and boiling with acidulated water from the
naphthalintrisulphonic acid prepared by sulphonation of naphthalin as
described in the German Patent No. 38281,-
-
the naphtholtrisulphonic acid, which is obtained by heating naphthosulton
or the alpha naphtholdisulphonic acid S of the German Patent
No. 40571 together with fuming sulphuric acid at a temperature
below 100° C.
-
the amidonaphtholsulphonic acids R and G of the German Patent
No. 53076.
the amidonaphtholdisulphonic acid of the German Patent No. 53023, and
the amidonaphtholdisulphonic acid which is obtained by the process
described in the German Patent No. 53023 from the naphthylaminetri-
sulphonic acid that is produced from the naphthalintrisulphonic
-acid of the German Patent No. 38281-by-nitration-and-reduction..
ated this 22nd day of December 1890.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Production of Azo Colouring Matters.
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 combination of the diazo-
diphenylamine and its homologues with certain oxynaphthalinsulphonic acids, pure
blue to blue violet colouring matters are obtained. The following is an example
of process for producing these colouring matters.
1 molecule of an oxynaphthalinsulphonic acid and an ample quantity of an
alkali, for example 2 molecules of soda, are dissolved in such quantity of water
as to form a solution of about 20 per cent:
To this solution, kept at ordinary temperature and well agitated, an equivalent
quantity of the diazo-diphenylamine sulphate obtained in the usual manner (for
example in the manner described in the Annalen der Chemie 243, page 281) is
added and the whole is kept agitated for 24 hours. At this stage of the operation
the colouring matter is formed, and it is obtained by precipitating with salt and
treating in the usual way.
For the soda may be substituted ammonia or other alkali, or it might be acetate
of sodium.
The colouring matters obtained from these diazo compounds are the first blue azo

page_text: colouring matters, the shade of which is not due to those chromophores to which
the shades of the diazo- and tetrazo colouring matters are due.
When dyed on wool in acid bath these colours are adapted for enlevage or
discharging.
The production of these blue to blue violet colouring matters may be effected by
combination of the diazo compounds of the following bases :-
Diphenylamine,
Phenyltalulamina
the beta-naphtholmonosulphonic acid described in the German Patent
No. 42112,-
the beta-naphtholdisulphonic acid R of the German Patent No. 3229,-
the beta-naphtholdisulphonic acid of the German Patent No. 44079,-
the naphtholdisulphonic acid of the German Patent No. 38281,-
the naphtholdisulphonic acid E of the German Patent No. 45776 or the
monamide of this acid,-
-
the naphtholtrisulphonic acid of the German Patent No. 40893,-
the naphtholtrisulphonic acid, which is obtained by nitration, reduction.
treatment with nitrous acid and boiling with acidulated water, from
the naphthalintrisulphonic acid prepared by sulphonation of naph-
thalin as described in the German Patent No. 38281, or the
monamide of this acid.
+
o, the dioxynaphthalinmonosulphonic acid of the German Patent No. 42261,-
the dioxynaphthalinmonosulphonic acid of the German Patent No. 41934,-
the dioxynaphthalinmonosulphonic acids which are obtained by melting
together with caustic alkalies the following naphtholdisulphonic acids,
viz. —
the naphtholdisulphonic acids R & G of the German Patent No. 3229,-
the naphtholdisulphonic acids E of the German Patent No. 45776,-
the naphtholdisulphonic acids of the German Patent No. 40571,-
the dioxynaphthalindisulphonic acid of the German Patent No. 40893,-
the dioxynaphthalindisulphonic acids, which are obtained by melting
together with caustic alkalies the following naphtholtrisulphonic acids,
viz.
the naphtholtrisulphonic acid of the German Patent No. 22038,-
the naphtholtrisulphonic acid which is obtained by nitration, reduction,
treatment with nitrous acid and boiling with acidulated water
from the naphthalintrisulphonic acid prepared by sulphonation
of naphthalin as described in the German Patent No. 38281,-
the naphtholtrisulphonic acid, which is obtained by heating naphthosulton
or the alpha naphtholdisulphonic acid S of the German Patent
No. 40571 together with fuming sulphuric acid at a temperature below
100° C.
the amidonaphtholsulphonic acids R and G of the German Patent No. 53076.
the amidonaphtholdisulphonic acid of the German Patent No. 53023, and
the amidonaphtholdisulphonic acid which is obtained by the process de-
scribed in the German Patent No. 53023 from the naphthylamine-
trisulphonic acid that is produced from the naphthalintrisulphonic acid
of the German Patent No. 38281 by nitration and reduction.
ving now particularly described and ascertained the nature of this invention
what manner the same is to be performed, I declare that what I claim is
The production of blue to blue violet colouring matters by combination of the

page_text: diazo compounds of diphenylamine, phenyltolylamine, ditolylamine, and their
isomeres and homologues with oxynaphthalin sulphonic acids, substantially as
described.
-2.-The-blue and violet-colouring matters-produced as in the preceding claim.
Dated this 22nd day of September 1891.
ABEL & IMRAY,
Agents for the Applicant.