Draduation of Calouning Motto 3 Combination of Titutions
Year: 1887

page_text: Date of Application, 19th Sept., 1887
Complete Left, 31st May, 1888
Complete Accepted, 6th July, 1888
[Communicated from abroad by LA SOCIÉTÉ ANONYME DES MATIÈRES COLORANTES
ET PRODUITS CHIMIQUES DE ST. DENIS, ALCIDE FRANÇOIS POIRRIER, Manufacturer,
and ZACHARIE ROUSSIN, Chemist, all of 105, Rue Lafayette, Paris, France.]
Draduation of Calouning
Motto
3
Combination
of
Titutions
[Communicated from abroad by LA SOCIÉTÉ ANONYME DES MATIÈRES COLORANTES
ET PRODUITS CHIMIQUES DE ST. DENIS, ALCIDE FRANÇOIS POIRRIER, Manufacturer,
and ZACHARIE ROUSSIN, Chemist, all of 105, Rue Lafayette, Paris, France.]
Production of Colouring Mattore by Combination of Nitrodiaze
benzols and their Analogues with Isomers of Naphthionic Acid.
I, JOHN IMRAY 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:-
In the Patent Specification No. 4490 of 1878 is described the manufacture of azoic
colouring matters by the reaction of the diazoic derivates of nitraniline, nitrotoluidine,
nitroxylidine and nitronaphthylamine on amines, phenols, naphthols and sulphoconju-
gate compounds of these. Among the new colouring matters described in the said
Specification are more particularly such as result from the action of the diazoic
derivates of the different nitranilines, nitrotoluidines, nitroxylidines &c. on naphthionic
acid.
The present invention relates to the production of colouring matters by the reaction
of the diazoic derivates of the same nitranilines, nitrotoluidines, nitroxylidines &c.
on the various isomers of naphthionic acid which were unknown at the date of the
previous patent above referred to, particularly isomeric naphthionic acid which has
been described by Witt.
This acid is thus prepared :-into an iron vessel provided with an agitator and
refrigerator are introduced 100 kilos of a-naphthylamine in the state of salt and
325 kilos of fuming sulphuric acid at 28 to 30 per cent. of anhydride. Intimate
mixture and the sulphoconjugation should take place at a temperature not exceed-
ing 29° 0. In two or three days the reaction is completed, and the product is poured
into water, saturated with lime and transformed into soda salt. The solution of this
salt being acidulated liberates an a-naphthylamine-monosulphonic acid or isomeric
naphthionic acid in flakes scarcely soluble. The solubility of this acid is intermediate

page_text: between that of Piria and that of Schmitt, Cleves or Scholl, which is termed soluble,
and that which has lately been described by Ewer and Pick, being more soluble than
the latter.
PREPARATION OF THE COLOURING MATTERS.
Nitrodiazobenzol is prepared in the usual way from 13.8 kilos of nitraniline and
this diazo compound is poured into a solution of 22.3 kilos of the Witt naphthionic
acid in the state of soda salt. The reaction should take place in a slightly acid
medium. The mixture being carefully agitated for two or three hours, there is
obtained a colouring matter scarcely soluble in this medium; it is collected on a filter
and dried. The paste thus obtained is thinned in a little water and a sufficient
quantity of carbonate of soda to produce the soda salt of the colouring matter, which
may then be pressed and dried.
With paranitraniline, metanitraniline and the other isomers are obtained colouring
matters more violet than that described in the Specification No. 4490 of 1878 above
referred to. These new colouring matters are in the state of salts quite soluble
in water, and they can be applied in powder for dyeing more easily than that described
in 1878.
In the process above described the proportions of the reagents used may be varied,
and any of the various isomers of monosulphoconjugate a-naphthlamine may be
employed. Generally, any of the diazoic derivates of the nitranilines, nitrotoluidines,
nitroxylidines and nitronaphthylamine may be used with the a-naphthylamine-mono-
sulphonic acids, for the production of colouring matters as above described.
Dated this 19th day of September 1887.
ABEL & IMRAY,
Agents for the Applicant.

page_text: Production of Colouring Matters by Combination of Nitrodiazo-
benzols and their Analogues with Isomers of Naphthionic Acid.
I, JOHN IMRAY 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 :-
In the Patent Specification No. 4490 of 1878 is described the manufacture of azoic
colouring matters by the reaction of the diazoic derivates of nitraniline, nitrotoluidine,
nitroxylidine and nitronaphthylamine on amines, phenols, naphthols and sulphoconju-
gate compounds of these. Among the new colouring matters described in the said
Specification are more particularly such as result from the action of the diazoic
derivates of the different nitranilines, nitrotoluidines, nitroxylidines &c. on naphthionic
acid.
The present invention relates to the production of colouring matters by the reaction
of the diazoic derivates of the same nitranilines, nitrotoluidines, nitroxylidines &c. on
the various isomers of naphthionic acid which were unknown at the date of the previous
patent above referred to, particularly isomeric naphthionic acid which has been
described by Witt.
This acid is thus prepared into an iron vessel provided with an agitator and
refrigerator are introduced 100 kilos of a-naphthylamine in the state of salt and
325 kilos of fuming sulphuric acid at 28 to 30 per cent. of anhydride. Intimate
mixture and the sulphoconjugation should take place at a temperature not exceed-
ing 29° C. In two or three days the reaction is completed, and the product is poured
into water, saturated with lime and transformed into soda salt. The solution of this
salt being acidulated liberates an a-naphthylamine monosulphonic acid or isomeric
naphthionic acid in flakes scarcely soluble. The solubility of this acid is intermediate
between that of Piria and that of Schmitt, Cleves or Scholl, which is termed soluble,
and that which has lately been described by Ewer and Pick, being more soluble than
the latter.
Nitrodiazobenzol is prepared in the usual way from 13.8 kilos of nitraniline and
this diazo compound is poured into a solution of 22.3 kilos of the Witt naphthionic
acid in the state of soda Salt. The reaction should take place in a slightly acid
medium.
The mixture being carefully agitated for two or three hours, there is obtained a
colouring matter scarcely soluble in this medium, it is collected on a filter and dried.
The paste thus obtained is thinned in a little water and a sufficient quantity of carbonate
of soda to produce the soda salt of the colouring matter, which may then be pressed
and dried.

page_text: With paranítraniline, metanitraniline and the other isomers, are obtained colouring
matters more violet than that described in the Specification No. 4490 of 1878 above
referred to. These new colouring matters are in the state of salts quite soluble in
water, and they can be applied in powder for dyeing more easily than that described
in 1878.
In the process above described the proportions of the reagents used may be
varied, and any of the various isomers of monosulphoconjugate a-naphthylamine
may be employed. Generally, any of the diazoic derivates of the nitranilines
nitrotoluidines, nitroxylidines and nitronaphthylamine may be used with the
a-naphthylamine monosulphonic acids, for the production of colouring matters as
above described.
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 :-
:~
The production of colouring matters differing in certain qualities from those described
in the Specification No. 4490 of 1878 by combining the various nitrodiazobenzols,
nitrodiazotoluols, nitrodiazoxylols and the like with the isomeric naphthionic acid of
Witt.