Year: 1895

page_text: Date of Application, 29th June, 1895
Complete Specification Left, 28th Mar., 1896-Accepted, 2nd May, 1896
Direct on Cotton.
1, OLIVER IMRAY, of No. 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 chromotropic acid and the dioxynaphthaliamonosulphoacid S described in
German Patent No. 67829 possess the property of combining with 2 molecules of
diazocompound.
In place of the latter may also be used one molecule of tetrazocompound; the
bodies thus produced, which are still capable of coupling give on combining with
amido and azo bodies, dis- and tris-azo colouring matters. The colouring matters
thus produced form the subject matter of various German Patents of my
correspondents amongst others, the Patents Nos. 59161 and 73170.
My correspondents have now discovered that black direct dyeing cotton dye-
stuffs are obtained if the intermediate bodies produced from 1 molecule of tetrazo-
compound and 1 molecule of an azo colouring matter (produced from 1 molecule
diazo-compound and 1 molecule chromotropic acid or dioxynaphthalinmonosulpho-
acid S) be further coupled with one molecule of a chrysoidine or its sulpho or
carbon acid.
Under chrysoidines are here understood the monoazo colouring matters-mostly
of a brown tint, produced by coupling one molecule of metadiamine with one
molecule of diazo-compound.
The same colouring matters are also obtained by producing a trisazo colouring
matter from 1 molecule of a tetrazo-compound, one molecule of a monoazo colouring
matter from chromotropic acid or dioxynaphthalinsulphoacid S, and 1 molecule of
meta diamine, and causing one molecule of a diazocompound to react upon such
colouring matter.
The monoazo colouring matter from dioxynaphthalinmonosulphoacid S employed
is obtained by the processes described in German Patents 54116 and 73551.
Furthermore, the said colouring matters can also be obtained from the tetrazo
colouring matter produced from one molecule tetrazo compound, one molecule
chromotropic acid or dioxynaphthaline sulphoacid S and one molecule metadiamine,
by the reaction of 2 molecules of diazocompound. Lastly the same colouring
matters can also be obtained by causing one molecule of a diazocompound to react
upon the trisazo colouring matter produced from one molecule of a tetrazo
compound one molecule of chromotropic acid or dioxynaphthalinsulpho acid S, and
one molecule of a chrysoidine.
The colouring inatters thus obtained contain at least four azo groups, and form
mostly grey-black powders with metallic lustre.
They dye easily upon unmordanted cotton and are distinguished from the direct

page_text: dyeing brown to black cotton dyes at present in commerce, by their greater
resistance to light.
For preparing the new colouring matters the process may for example be carried
out as follows:
1. The tetrazosolution prepared in the usual manner from 1.84 kilos. benzidine
is combined with a solution of the azo colouring matter from 2.25 kilos. diazotised
naphthionic acid and corresponding quantities of chromotropic acid or dioxy-
naphthaline sulphoacid S, the solution of the colouring matter having 3 kilos.
carbonate of soda solution added thereto.
The colouring matter solution is for this purpose either poured into the tetrazo
solution, or the converse. There are thus formed intermediate bodies of a dark
violet colour; both that produced with chromotropic acid as also that produced
with dioxynaphthalinmonosulphoacid S mostly separates out. When the formation
of the intermediate body is completed, the solution of chrysoidine containing
1 kilo. of carbonate of soda is made to react under energetic stirring, the said
solution being prepared from 1.08 kilos. of m. phenylendiamine and the quantity
of diazotised amido naphthol monosulpho acid G necessary for preparing the
chrysoidine.
After some hours the formation of the desired colouring matter is completed,
and it is then isolated and purified in the usual manner. The aqueous solution of
the colouring matter from chromotropic acid shows a black blue colour while the
colouring matter from dioxynaphthalinmonosulphoacid S dissolves in water with a
dull violet colour.
2. 2.12 kilos. of tolidine are diazotised in the usual manner and the diazo
solution is mixed under energetic stirring with a solution of the azo colouring
matter from 2.25 kilos. diazotised naphtbionic acid and the corresponding quantity
of chromotropic acid or dioxynaphthalinmonosulphoacid S, such solution containing
3 kilos. of carbonate of soda.
When the formation of the intermediate body is completed, the solution of
1.08 kilos. of m. phenylendiamine is added. After stirring for some hours, the
formation of the trisazo colouring matter is completed. There is then added to
the solution of the colouring matter 1 kilo. of carbonate of soda, and a paste of
diazobenzolsulphoacid prepared in the usual manner from 2.31 kilos. of sulphauilate
of soda is poured into the mass.
The isolation and purification of the colouring matter is effected as under (1).
3. A tetrazosolution prepared from 1.84 kilos. of benzidine is added for the
production of an intermediate body, to a solution of 3.64 kilos. of chromotropolate
of soda or the corresponding quantity of dioxynaphthalinsulpholate of soda, such
solution containing 3 kilos. of carbonate of soda, and when the reaction is completed
a solution of 1.08 kilos. of m. phenylendiamine is added.
When the formation of the tetrazo colouring matter is completed, a further
quantity of 15 kilos. of carbonate of soda is added and a paste of diazobenzol-
sulphoacid formed of 4.62 kilos. of sulphanilate of soda is made to act thereon
under energetic stirring, which acid groups itself with the chromotropic acid or the
dioxynaphthaline sulphoacid S bound in the tetrazo colouring matters, and with the
phenylendiamine.
m.
The isolation and purification of the colouring matter is effected in the usual
manner.
By the above described process the following combinations may be produced:
Benzidine +
Chromotropic acid
-
naphthionic acid (diaz)
m nhenvlandiamine
amilananhthalmonosulubo acid (die)

page_text: ume (az)
\m. phenylendiamine
-
sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid S
m. phenylendiamine sulphauilic acid (diaz)
sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid S
- a
naphthylamine. (diaz)
m. phenylendiamine
sulphanilic acid (diaz)
Dioxynaphthalınmonosulpho acid ẞ naphthylamine (diaz)
m. phenylendiamine
-
sulphanilic acid (diaz]
Dioxynaphthalinmonosulpho acid S
-
naphth ionic acid (diaz)
m. phenylendiamine
sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid S
-
naphthionic acid (diaz)
m. phenylendiamine - amidonaphtholmonosu pho acid G (diaz)
Dioxynaphthaliamonosulpho acid Snaphthionic acid (diaz)
m. phenylendiamine
-
sulphanilic acid (diaz]
Chronotropic acid sulpbanilic acid (diaz)
―
m. phenylendiamine - sulphanilic acid (diaz)
Chromotropic acid
-
sulphanilic acid (diaz)
Nin. toluylendiamine sulphanilic acid (diaz)
-
Chromotropic acid
-
sulphanilic acid (diaz)
m. phenylendiamine -naphthionic acid (dia)
Chromotropic acid sulphanilic acid (diaz)
\m. phenylendiamine – amidonaphthol monosulpho acid G (diaz
Chromotropic acid
m. phenylendiamine
Chromotropic acid
-
sulphanilic acid (diaz)
-
sulphanilic acid (diaz)
sulphanilic acid (diaz)
m. toluylendiamine sulphanilic acid (diaz)
Chromotropic acid
-
sulphanilic acid (diaz)
m. phenylendiamine-naphthionic acid (diaz)
m. phenylendiamine sulphanilic acid (diaz)
-
Dioxynaphthalinmonosulpho acid S sulpha
-
m. phenylendiamine sulphauilic acid (diaz)
Dioxynaphthalinmonosulpho acid S a napl
m. phenylendiamine
sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid-ẞ napht
m. phenylendiamine
sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid S
-
naphth
m. phenylendiamine
sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid S - napht
m. phenylendiamine - amidonaphtholmonosu
Dioxynaphthaliumonosulpho acid S
-
-
napht
m. phenylendiamine sulphanilic acid (diaz)
Chronotropic acid
-
sulpbanilic acid (diaz)
m. phenylendiamine sulphanilic acid (diaz)
-
Chromotropic acid
-
sulphanilic acid (diaz)
in. toluylendiamine sulphanilic acid (diaz)
-
Chromotropic acid
-
sulphanilic acid (diaz)
m. phenylendiamine-naphthionic acid (dia
Chromotropic acid
-
sulphanilic acid (diaz)
m. phenylendiamine - amidonaphthol monosul
Chromotropic acid
-
sulphanilic acid (diaz)
m. phenylendiamine
sulphanilic acid (diaz)
Chromotropic acid
sulphanilic acid (diaz)
m. toluylendiamine
-
sulphanilic acid (diaz)
Chromotropic acid
-
sulphanilic acid (diaz)
m. phenylendiamine - naphthionic acid (diaz

page_text: བས-P------ཙ ་ཅ་ས དས་འར་
m. phenylendiamine - amidonaphtholmonosulpho acid
Chromotropic acid naphthionic acid (diaz)
、m. phenylendiamine - sulphanilic acid (diaz)
Chromotropic acid-naphthionic acid (diaz)
m. toluylendiamine
-
sulphanilic acid (diaz)
Chromotropic acid-naphthionic acid (diaz)
-
m. phenylendiamine naphthionic acid (diaz)
Chromotropic acid - naphthionic acid (diaz)
―
m. phenylendiamine sulphanilic acid (diaz)
Chromotropic acid
-
-
naphthionic acid (diaz)
m. toluylendiamine sulphanilic acid (diaz)
Chromotropic acid-naphthionic acid (diaz)
m. phenylendiamine-naphthionic acid (diaz)
Chromotropic acid naphthiouic acid (diaz)
m. phenylendiamine
amidonaphtholmonosulpho acid
-Chromotropic acid - amidonaphtholmonosulpho acid (
-
m. phenylendiamine sulphanilic acid (diaz)
Chromotropic acid
m.
-
amidonaphtholmonosulpho acid
toluylendiamine
Chromotropic acid
-
sulphanilic acid (diaz)
-
amidonaphtholmonosulpho acid
m.
phenylendiamine
-
naphthionic acid (diaz)
Chromotropic acid
-
amidonaphtholmouosulpbo acid
Chromotropic acid
-
m. phenylendiamine
Chromotropic acid
m. phenylendiamine - amidonaphtholmonosulpho acid
amidonaphtholmonosulpho acid
amidonaphtholmonosulpho acid
m. toluylendiamine - sulphanilic acid (diaz)
-
sulphanilic acid (diaz)

page_text: Chromotropic acid – amidonaphtholmonosulpho acid G (diaz)
m. phenylendiamine -naphthionic acid (diaz)
-
Chromotropic acid - amidonaphtholmonosulpho acid G (diaz)
m. phenylendiamine amidonaphtholmonosulpho acid G (diaz)
Dioxynaphthalinmonosulpho acid S sulphanilic acid (diaz)
m. toluylendiamine sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid S - sulphanilic acid (diaz)
m. phenylendiamine-naphthionic acid (diaz)
Dioxynaphthalinmonosulpho acid sulphanilic acid (diaz)
-
-
m. phenylendiamine amidonaphtholmonosulpho acid G (diaz).
Dioxynaphthalinmonosulpho acid S sulphanilic acid (diaz)
-
m. toluylendiamine sulphanilic acid (diaz)
-
Dioxynaphthalinmonosulpho acid S - sulphanilic acid (diaz)
m. phenylendiamine-naphthionic acid (diaz)
Dioxynaphthalinmonosulpho acid S - sulphanilic acid (diaz)
-
m. phenylendiamine amidonaphtholmonosulpho acid G (diaz).
Dioxynaphthalinmonosulpho acid S - sulphanilic acid (diaz)
m. phenylendiamine sulphanilic acid (diaz)
-
Dioxynaphthalinmonosulpho acid Snaphthionic acid (diaz)
、m. toluylendiamine - sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid Snaphthionic acid (diaz)
m. phenylendiamine-naphthionic acid (diaz)
Dioxynaphthaliamonosulpho acid S naphthionic acid (diaz)
-
m. toluylendiamine - sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid S - naphthionic acid (diaz)
m. phenylendiamine naphthionic acid (diaz)
-
Dioxynaphthalinmonosulpho acid S naphthionic acid (diaz)
-
m. phenylendiamine - amidonaphtholmonosulpho acid G (diaz)

page_text: Dioxynaphthalinmonosulpho acid S -
acid G (diaz)
-
amidonaphtholmonosulpho
m. phenylendiamine sulphanilic acid (diaz)
-
Dioxynaphthalinmonosulpho acid S - amidonaphtholmonosulpho
acid G (diaz)
m. toluylendiamine
1
sulphanilic acid (diaz)
amidonaphtholmonosulpho
acid G (diaz)
m. phenylendiamine
-
naphthionic acid (diaz)
Dioxynaphthalinmonosulpho acid S
-
Dioxynaphthalinmonosulpho acid Samidouaphtholinonosulpho
acid G (diaz)
m. phenylendiamine
-
amidonaphtholmonosulpho acid G (diaz)
Dioxynaphthalinmonosulpho acid S - amidonaphtholmonosulpho
acid G (diaz)
m. phenylendiamine - sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid Gamidonaphtholmionosulpho
acid G (diaz)
m. toluylendiamine
-
sulphanilic acid (diaz)
Dioxynaphthaliomonosulpho acid Samidonaphtholmonosulpho
acid G (diaz)
m. phenylendiamine
-
-naphthionic acid (diaz)
Samidonaphthol monosulfo-
Dioxynaphthalinmonosulfonique
nique G (dinz)
m. phenylendiamine - amidonaphthol monosulfonique G (diaz)
is 29th day of June 1895.
ADDY
10
DV
Manufacture of New Brown to Black Azo Colouring Matters Dyeing
Direct on Cotton.
I, OLIVER IMRAY, of No. 28 Southampton Buildings, Chancery Lane, in the
County of London, Chartered Patent Agent, 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 :-
The chromotropic acid and the dioxynaphthalin monosulpho acid S, described
in German Patent No. 67829 possess the property of combining with 2 molecules of
diazocompound.
In place of the latter may also be used one molecule of tetrazocompound; the
bodies thus produced, which are still capable of coupling give on combining with
amido and azo bodies, dis- and tris-azo colouring matters. The colouring matters
thus produced form the subject matter of various German Patents of my
correspondents amongst others the Patents Nos. 59161 and 73170.
My correspondents have now discovered that black direct dyeing cotton dyestuffs

page_text: are obtained if the intermediate bodies produced from 1 molecule of tetrazo
compound and 1 molecule of an azo colouring matter (produced from 1 molecule
diazc-compound and 1 molecule chromotropic acid or dioxynaphthalin mono-sulpho
acid S) be further coupled with one molecule of a chrysoidine or its sulpho or
carbon acid.
Under chrysoidines are here understood the monoazo colouring matters mostly
of a brown tint, produced by coupling one molecule of metadiamine with one
molecule of diazo compound.
Like colouring matters are also obtained by producing a trisazo colouring matter
from 1 molecule of a tetrazo compound, one molecule of a monoazo colouring
matter from chromotropic acid or dioxynaphthalinsulpho acid S, and 1 molecule of
meta diamine, and causing one molecule of a diazo-compound to react upon such
colouring matter.
The monoazo colouring matter from dioxy-naphthalin monosulpho acid S
employed is obtained by the processes described in German Patents 54116
and 73551.
Furthermore, the said colouring matters can also be obtained from the tetrazo
colouring matter produced from one molecule tetrazo compound, one molecule
chromotropic acid or dioxynaphthaline sulpho acid S and one molecule metadiamine,
by the reaction of 2 molecules of diazo compound. Lastly-the same colouring
matters can also be obtained by causing one molecule of a diazo compound to react
upon the trisazo colouring matter produced from one molecule of a tetrazo
compound one molecule of chromotropic acid or dioxynaphthalin sulpho acid S, and
one molecule of a chrysoidine.
The colouring matters thus obtained contain at least four azo groups, and form
mostly grey-black powders with metallic lustre.
They dye easily upon unmordanted cotton and are distinguished from the direct
dyeing brown to black cotton dyes at present in commerce, by their greater
resistance to light.
For preparing the new colouring matters the process may for example be carried
out as follows:-
1. The tetrazo solution prepared in the usual manner from 1.84 kilos. benzidine
is combined with a solution of the azo colouring matter from 2.25 kilos. diazotised
naphthionic acid and corresponding quantities of chromotropic acid or dioxy-
naphthaline sulpho acid S, the solution of the colouring matter having 3 kilos.
carbonate of soda solution added thereto.
The colouring matter solution is for this purpose either poured into the tetrazo
solution, or the converse. There are thus formed intermediate bodies of a dark
violet colour; both that produced with chromotropic acid as also that produced
with dioxynaphthalin mono-sulpho acid S mostly separates out. When the
formation of the intermediate body is completed, the solution of chrysoidine
containing 1 kilo. of carbonate of soda is made to react under energetic stirring,
the said solution being prepared from 1.08 kilos. of m. phenylendiamine and the
quantity of diazotised amido naphthol monosulpho acid G necessary for preparing
the chrysoidine.
After some hours the formation of the desired colouring matter is completed, and
it is then isolated and purified in the usual manner. The aqueous solution of the
colouring matter from chromotropic acid shows a black blue colour while the
colouring matter from dioxyuaphthalin-monosulpho acid S dissolves in water with
a dull violet colour.
2. 2-12 kilos. of toluidine are diazotised in the usual manner and the diazo
solution is mixed under energetic stirring with a solution of the azo colouring
matter from 2-25 kilos. diazotised naphthionic acid and the corresponding quantity
of chromotropic acid or dioxynaphthalin mouosulpho acid S, such solution containing
3 kilos. of carbonate of soda.
When the formation of the intermediate body is completed, the solution of
1:08.kilos. of m. phenylendiamine is added. After stirring for some hours, the formation

page_text: Chronotropic acid
m. phenylendiamine
Chromotropic acid
-
sulphanilic acid (diaz)
sulphanilic acid (diaz)
-
sulphanilic acid (diaz)
m. toluylendiamine
-
sulphanilic acid (diaz)
Chromotropic acid
-
sulphanilic acid (diaz)
m. phenylendiamine-naphthionic acid (diaz
Chromotropic acid
sulphanilic acid (diaz)
m. phenylendiamine
-
amidonaphtholmonosu
Chromotropic acid
sulphanilic acid (diaz)
m. phenylendiamine
sulphanilic acid (diaz)
Chromotropic acid
sulphanilic acid (diaz)
m. toluyleudiamine
-
sulphanilic acid (diaz)
Chrometropic acid
-
sulphanilic acid (diaz)
m. phenylendiamine-naphthionic acid (diaz)
Chromotropic acid
sulphanilic acid (diaz)
m. phenylendiamine
-
amidonaphthol monosul
Chromotropic acid naphthionic acid (diaz)
m. phenylendiamine
sulphauilic acid (diaz)
Chromotropic acid
-
naphthionic acid (diaz)
m. toluylendiamine - sulphanilic acid (diaz)
Chromotropic acid-naphthionic acid (diaz)
m. phenylendiamine-naphthionic acid (diaz
Chromotropic acid-naphthionic acid (diaz)
m. phenylendiamine
Chromotropic acid
-
-
sulphanilic acid (diaz)
naphthionic acid (diaz)
m. toluylendiamine sulphanilic acid (diaz)
-
Chromotropic acid-naphthionic acid (diaz)
\m.
phenylendiamine - naphthionic acid (diaz)

page_text: Chromotropic acid naphthionic acid (diaz)
m. phenylendiamine - amidonaphthol monosulpho acid G (diaz)
Chromotropic acid
m. phenylendiamine
amidonaphtholmonosulpho acid G (diaz)
sulphanilic acid (diaz)
Chromotropic acid
m. toluylendiamine
Chromotropic acid
-
amidonaphtholmonosulpho acid G (diaz)
sulphanilic acid (diaz)
amidonaphtholmonosulpho acid G (diaz)
m. phenylendiamine -naphthionic acid (diaz)
Chronotropic acid
amidonaphtholmonosulpho acid Ĝ (diaz)
mm. phenylendiamine
-
amidonaphtholmonosulpho acid G (diaz)
Chromotropic acid
-
amidonaphtholmonosulpho acid G (diaz)
m. phenylendiamine
sulphanilic acid (diaz)
Chromotropic acid
amidonaphtholmonosulpho acid G (diaz)
m. toluylendiamine
sulphanilic acid (diaz)
Chromotropic acid amidonaphthol monosulpho acid G (diaz)
-
m. phenylendiamine -naphthionic acid (diaz)
Chromotropic acid - amidouaphtholmonosulpho acid G (diaz)
m. phenylendiamine amidonaphtholmonosulpho acid G (diaz)
Dioxynaphthalinmonosulpho acid S-sulphanilic acid (diaz)
‚mı. toluylendiamine - sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid S
-
sulphanilic acid (diaz)
m. phenylendiamine-naphthionic acid (diaz)
-Dioxynaphthalinmonosulpho acid S – sulpbanilic acid (diaz)
-
m. phenylendiamine — amidonaphtholmonosulpho acid G (diaz)
Dioxynaphthalinmonosulpho acid S - sulphanilic acid (diaz)
m. toluylendiamine sulphanilic acid (diaz)
-
Dioxynaphthalinmonosulpho acid S-sulphanilic acid (diaz)
m. phenylendiamine - naphthionic acid (diaz)

page_text: Dioxynaphthalinmonosulpho acid S - sulphanilic acid (diaz)
m. phenylendiamine - amidonaphtholmonosulpho acid G (diaz)
Dioxynaphthalinmonosulpho acid S-sulphanilic acid (diaz)
m. phenylendiamine sulphanilic acid (diaz)
-
-
Dioxynaphthalinmonosulpho acid S naphthionic acid (diaz)
m. toluylendiamine sulpbanilic acid (diaz)
-
Dioxynaphthalinmonosulpho acid S - naphthionic acid (diaz)
m. phenylendiamine-naphthionic acid (diaz)
Dioxynaphthalinmonosulpho acid S naphthionic acid (diaz)
1
m. toluylendiamine sulphanilic acid (diaz)
-
Dioxynaphthalinmonosulpho acid S - naphthionic acid (diaz)
m. phenylendiamine-naphthionic acid (diaz)
Dioxynaphthalinmonosulpho acid Snaphthionic acid (diaz)
m. phenylendiamine - amidonaphthol monosulpho acid G (diaz)
Dioxynaphthalinmouosulpho acid S - amidonaphtholmonosulpho
acid G (diaz)
m. phenylendiamine - sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid S - amidonaphtholmonosulpho
acid G (diaz)
m. toluylendiamine sulphanilic acid (diaz)
-
Dioxynaphthalinmonosulpho acid S - amidonaphtholmonosulpho
acid G (diaz)
m. phenylendiamine-naphthionic acid (diaz)
Dioxynaphthalinmonosulpho acid S - amidonaphtholmonosulpho
acid G (diaz)
m. phenylendiamine - amidonaphtholmonosulpho acid G (diaz)
Dioxyuaphthalinmonosulpho acid Samidonaphthol monosulpho
acid G (diaz)
m. phenylendiamine sulphanilic acid (diaz)
-
Dioxynaphthalinmonosulpho acid Samidonaphtholmonosulpho
acid G (diaz)
m. toluylendiamine - sulphanilic acid (diaz)
Dioxynaphthalinmonosulpho acid Samidonaphtholmonosulpho
acid G (diaz)
m. phenylendiamine - naphthionic acid (diaz)
-

page_text: Tolidin +
Dioxynaphthalinmonosulfonique S – amidonaphtholmonosul-
fonique G (diaz)
m. phenylendiamine
amidonaphthol monosulfonique G (diaz).
Having now particularly described and ascertained the nature of the said inven
tion and in what manner the same is to be performed 1 declare, that what
claim is :-
1. Process for the manufacture of brown to black azo colouring matters dyeing
direct on cotton, having the general composition:
´aŋ a dioxynaphthalinmono- or di-sulpho-acid-diazo compound
isting in :
a, combining the intermediate body formed from 1 molecule tetrazo compound
and 1 molecule azo colouring matter (the latter being obtained by the
action of 1 molecule diazo compound upon 1 molecule chromotropic acid,
or, according to the process described in German Patents Nos. 54116 and
73551, upon 1 molecule dioxynaphthalinmonosulpho acid S) with 1 molecule
of a chrysoidine or its sulpho or carbon acid, or :
b, acting upon the trisazo-colouring matter formed from 1 molecule of a tetrazo
compound, 1 molecule of an azo colouring matter (the latter being obtained
from molecule diaz compound and 1 molecule chromotropic acid or,
according to German Patents 54116 and 73551, 1 molecule dioxy-
naphthalinmonosulpho acid S) and 1 molecule metadiamine with one
molecule of a diazo compound.
c, combining the azo-colouring matter, formed from 1 molecule of a tetrazo
compound, one molecule chromotropic acid or dioxynaphthaliamono-
sulpho acid S and 1 molecule metadiamine, with 2 molecules of a diazo
compound, or
d, acting upon the trisazo colouring matter, formed from 1 molecule of a
tetrazo compound, 1 molecule chromotropic acid or dioxynaphthalin-
sulpho acid S and 1 molecule of a chrysoidine with 1 molecule of a diazo
compound.
The special applications of the process referred to in the first claim for the
uction of the several compounds herein enumerated.
As new products, the colouring matters produced by the processes referred to
e first and second claims.
Dated this 28th day of March 1896.
ABEL & IMRAY,
Agents for the Applicant..