ABRIKA
Year: 1888

page_text: [Communicated from abroad by THE ACTIEN GESELLSCHAFT FÜR ANILIN
FABRIKATION, of Berlin, in the German Empire, Manufacturing Chemists.]
I, CHARLES DENTON ABEL of No. 28 Southampton Buildings Chancery Lane in the
County of Middlesex Consulting Engineer and Patent Agent do hereby declare the
nature of this invention to be as follows:
:-
It is well known, that an orange colouring matter is obtained by combining
tetrazodiphenyle (from Benzidine) first with one molecule of salicylic acid, and acting
with the thus formed intermediate product upon one molecule of resorcine.
Now my correspondents have found that this colouring matter is still able to
combine with a further molecule of a diazo-compound. By this reaction new
colouring matters are obtained, which dye on cotton brown shades without the use of
a mordant.
Example I. 47 kilos of the colouring matters from tetrazodiphenyle, salicylic acid
and resorcine are dissolved in 4,000 litres of boiling water with an addition of 25 kilos
of caustic soda (of 40° Bé). After cooling, 20 kilos of para-diazobenzole-sulphonic
acid, suspended in about 600 litres of water; are slowly entered into the alkaline
solution. Thus a colouring matter is obtained, which is soluble with difficulty in
water. Its precipitation is completed by adding a solution of common salt. It dyes
cotton in deep brown shades without the use of a mordant.
An identical colouring matter is obtained if the intermediate product formed by
one molecule of tetrazodiphenyle and one molecule of salicylic acid acts upon the
colouring matter formed by one molecule of para-diazobenzole-sulphonic acid and one
molecule of resorcine.
To produce the new colouring matter by this method, 36 kilos of the colouring
matter from para-diazobenzole-sulphonic acid and resorcine are dissolved in 1,000 litres
of water, and to this solution an equivalent quantity of the intermediate product from
tetrazodiphenyle and salicylic acid is added.

page_text: To prepare the intermediate product 19.5 kilos of benzidine are dissolved by means
of 48 kilos of muriatic acid in 800 litres of water and diazotized by 6.9 kilos of nitrite
of soda; the solution of the diazo compound is then entered into a solution of 15 kilos
of salicylic acid, 14 kilos of caustic soda (of 40° Bé) and 30 kilos of carbonate of soda
in 1,200 litres of water.
After the mixture of the intermediate product and the above mentioned colouring
matter has stood for about 24 hours, it is heated and the so formed colouring matter is
precipitated by common salt, filtered, pressed, and dried.
It dyes on cotton deep yellow-brown shades without the use of a mordant.
If, in example I, the para-diazobenzole-sulphonic acid is replaced by meta-
diazobenzole-sulphonic acid, the resulting colouring matter dyes more yellowish brown
shades.
Example II. If in the first method of example I the para-diazobenzole-sulphonic
acid is replaced by 25 kilos of alpha-naphthylamine-monosulphonic acid, a colouring
matter is obtained, which dyes cotton red-brown.
An identical colouring matter is formed if the intermediate product from tetrazo-
diphenyle and salicylic acid acts upon the colouring matter from alpha-diazonaphthaline-
monosulphonic acid and resorcine. The production of the latter compound requires:
22.3 kilos of alphanaphtylamine-monosulphonic acid, 500 litres of water, 14 kilos of
muriatic acid and 6.9 kilos of nitrite of sodium. The diazo-compound thus formed is
entered into a solution of 11.5 kilos of resorcine, 26 kilos of caustic of soda (40° Bé)
and 7.5 kilos of carbonate of sodium in 300 litres of water.
The different isomeric alpha-diazo-naphthaline-monosulphonic acids show in regard
to the described reaction an analogous behaviour and the corresponding colouring
matters do not differ very much in regard to their shades, in dying cotton with them.
The
If the diazonaphthaline-monosulphonic acids are replaced by the disulphonic acids
of naphthaline no remarkable variation regarding their shades is observed.
isomeric sulphonic acids of the beta-diazonaphthaline, if employed instead of the
alpha-diazonaphthaline-sulphonic acids in the described reactions, yield colouring
matters, which dye cotton more of a yellow-brown. Colouring matters of similar
shades are also obtained if the mono or disulphonic acids of diazo-azobenzole or diazo-
azotoluole are employed instead of the diazo-naphthaline sulphonic acids.
Finally it may be stated that in each of the described combinations the tetrazo-
diphenyle may be replaced by tetrazoditolyle without any important change of the
effect.

page_text: without the Use of a Mordant.
I, CHARLES DENTON ABEL, of No. 28 Southampton Buildings, Chancery Lane, in
the County of Middlesex, Consulting Engineer and 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 :-
It is well known than an orange colouring matter is obtained by combining tetrazo-
diphenyle (from benzidine) first with one molecule of salicylic acid and acting with
the thus formed intermediate product upon one molecule of resorcine.
Now my correspondents have found that this colouring matter is still able to
combine with a further molecule of a diazo compound. By this reaction new
colouring matters are obtained, which dye on cotton brown shades without the use of a
mordant.
Example I. 47 kilos of the colouring matter from tetrazodiphenyle, salicylic acid
and resorcine are dissolved in 4000 litres of boiling water with an addition of 25 kilos
of caustic soda (of 40° Bé). After cooling, 20 kilos of para-diazobenzole sulphonic
acid suspended in about 600 litres of water, are slowly entered into the alkaline
solution. Thus a colouring matter is obtained which is soluble with difficulty in
water. Its precipitation is completed by adding a solution of common salt. It dyes
cotton in deep brown shades without the use of a mordant.
An identical colouring matter is obtained if the intermediate product formed by one
molecule of tetrazodiphenyle and one molecule of salicylic acid acts upon the colouring
matter formed by one molecule of para-diazobenzole-sulphonic acid and one molecule
of resorcine.
To produce the new colouring matter by this method 36 kilos of the colouring
matter from para-diazobenzole sulphonic acid and resorcine are dissolved in 1000 litres
of water, and to this solution an equivalent quantity of the intermediate product from
tetrazo-diphenyle and salicylic acid is added."
To prepare the intermediate product 19.5 kilos of benzidine are dissolved by means
of 48 kilos of muriatic acid in 800 litres of water and diazotised by 6.9 kilos of nitrite
of soda; the solution of the diazo compound is then entered into a solution of 15 kilos
of salicylic acid, 14 kilos of caustic soda (of 40° Bé) and 30 kilos of carbonate of soda
in 1200 litres of water.
After the mixture of the intermediate product and the above mentioned colouring
matter has stood for about 24 hours, it is heated and the so formed colouring matter is
precipitated by common salt, filtered, pressed and dried. It dyes on cotton deep
yellow-brown shades without the use of a mordant.
If in example I the para-diazobenzole sulphonic acid is replaced by meta-diazobenzole
sulphonic acid the resulting colouring matter dyes more yellowish-brown shades.
Example II. If in the first method of Example I the para-diazobenzole sulphonio
acid is replaced by 25 kilos of alpha naphthylamine monosulphonic acid, a colouring
matter is obtained, which dyes cotton red brown.

page_text: "
An identical colouring matter is formed if the intermediate product from tetrazo-
diphenyle and salicylic acid acts upon the colouring matter from alpha diazonaphthaline
monosulphonic acid and resorcine. The production of the latter compound requires:
22.3 kilos of alphanaphthylamine-monosulphonic acid, 500 litres of water, 14 kilos of
muriatic acid and 6.9 kilos of nitrite of sodium. The diazo compound thus formed is
entered into a solution of 11.5 kilos of resorcine, 26 kilos of caustic soda (40° Bé) and
7.5 kilos of carbonate of sodium in 300 litres of water.
The different isomeric alpha-diazo naphthaline monosulphonic acids show in regard
to the described reaction an analogous behaviour and the corresponding colouring
matters do not differ very much in regard to their shades, in dyeing cotton with
them.
If the diazo naphthaline monosulphonic acids are replaced by the disulphonic acids
of naphthaline no remarkable variation regarding their shades is observed. The
isomeric sulphonic acids of the beta-diazonaphthaline, it employed instead of the
alpha-diazonaphthaline sulphonic acids in the described reactions, yield colouring
matters which dye cotton more of a yellow-brown. Colouring matters of similar
shades are also obtained, if the mono or disulphonic acids of diazo-azobenzole or
diazo-azotoluole are employed instead of the diazo-naphthaline sulphonic acids.
Finally it may be stated that in each of the described combinations the tetrazo-
diphenyle may be replaced by tetrazo-ditolyle without any important change of the
effect.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed, I declare that what I
claim is :-
1. The process for the production of colouring matters, dyeing cotton without the
use of a mordant, which consists in acting with diazobenzole sulphonic acid, diazo
naphthaline mono or disulphonic acid, diazo-azobenzole-mono- or disulphonic acid,
diazo azotoluole-monosulphonic acid, upon the colouring matter, which is obtained
from tetrazodiphenyle or tetrazoditolyle salicylic acid and resorcine.
2. The process for the production of colouring matters dyeing cotton without the
use of a mordant which consists in acting with the intermediate product from tetrazo-
diphenyle or tetrazo ditolyle and salicylic acid upon the colouring matters which are
obtained by combining diazobenzole sulphonic acid diazonaphthaline, mono
disulphonic acid, diazo azobenzole-mono- or disulphonic acid, diazo azotoluole mono-
sulphonic acid, with resorcine.
or
3. As a new manufacture the colouring matters produced by the processes set forth
in the preceding claims.
Dated this 8th day of April 1889.
ABEL & IMRAY,
Agents for the Applicant.