Manufacture of Azo-coloring Matters.TERS FROM THE NEW ALNAPHOL-DISULPHONIC- ACID AND DIAZO-COMPOUNDS, WHICH CONTAIN NO SULPHONIC ACID
Year: 1888

page_text: [Communicated from abroad by THE ACTIEN GESELLSCHAFT FÜR ANILIN FABRIKATION,
of Berlin, in the German Empire, Manufacturing Chemists.]
Manufacture of Azo-coloring Matters.
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:-
This invention relates to the manufacture of new and useful red, brown, violet and
bluish-black azo-coloring matters by combining the new alphanaphthol-disulphonic-
acid described in the application to l'atent 462588 with diazo-compounds.
The following combinations are moro particularly of importance.
EXAMPLE I. COLORING MATTERS FROM THE NEW
ALPHANAPHTHOL-DISULPHONIC-
ACID AND DIAZO-COMPOUNDS, WHICH CONTAIN NO SULPHONIC ACID.
15.75 Kilos. of hydrochlorate of Xylidine are dissolved in 100 litres of water and
acidulated with 12 Kilos. of muriatic-acid. To this is slowly added under continuous
stirring a solution of 6.9 Kilos. of nitrite of sodium in 50 litres of water. The
solution of diazoxylol thus formed is entered into 700 Kilos. of water containing
34.8 Kilos. of the sodium salt of the new alphanaphthol-disulphonic-acid and
carbonate of sodium, enough to keep the liquid alkaline until the process is completed.
The formed dye-stuff is separated by precipitation with common salt, pressing and
drying.
It dyes wool with yellowish red shades in an acidulated bath. If in the above
described example the 15.75 Kilos. of hydrochlorate of Xylidine are replaced by the
equivalent quantity of the hydrochlorates of cumidine, alphanaphthylamine, betanaph-
thylamine, amido-azobenzole and amidoazotolnole, dye stuffs are obtained which
likewise yield on woolen stuffs in acidulated baths very fair shades.

page_text: The coloring-matter from
Cumidine, dyes
alphanaphthylamine, dyes
betanaphthylamine
amidoazobenzole
amidoazotoluole
"
"
"
-
-
red.
brown.
red-brown.
-
brown.
-
brown.
EXAMPLE II. COLORING MATTERS FROM THE NEW-ALPHANAPHTHOL-DISULPHONIC-
->>>
ACID AND SULPHONATED DIAZO-COMPOUNDS.
If in example I the Xylidine is replaced by equivalent quantities of naphthionic-
acid Sulphanilic acid-azo - alphanaphthylamine Alphanapthylamine disulphonic-
acid-azo alphanaphtylamine, or Betanaphtylamine disulphonic acid-azo-alphanaphtyl-
amine, useful coloring matters are obtained, which yield on woollen stuffs in acidulated
baths the following shades:-
The coloring matter from :-
Naphthionic-acid dyes
"
Betanaphthylamine-beta-sulphonic-acid dyes
Sulphanilic-acid-azo-alphanaphthylamine
Betanaphthylamine-alphasulphonic-
acid-azo-alphanaphthylamine
Alphanaphthylamine-disulphonic-acid-
azo-alphanaphthylamine
Beta naphthylamine-disulphonic-acid-
G-azo-alphanaphtylamine
Dated this 20th day of April 1888.
";
-
-
"
"
brown-red.
red.
brown.
brown.
red-violet.
"
bluish-black.

page_text: This invention relates to the manufacture of new and useful red, brown, violet, and
bluish-black azo coloring matters by combining the new alphianaphthol-disulphonic
acid described in the application to Patent 46258 with diazo compounds.
The following combinations are more particularly of importance
EXAMPLE I. COLORING MATTERS FROM THE NEW ALPHANAPHTHOL-DISULPHONIC
ACID AND DIAZO COMPOUNDS WHICH CONTAIN NO SULPHONIC ACID.
15.75 Kilos. of hydrochlorate of Xylidine are dissolved in 100 litres of water and
acidulated with 12 Kilos. of muriatic acid. To this is slowly added under continuous
stirring a solution of 6.9 Kilos. of nitrite of sodium in 50 litres of water.
The solution of diazoxylol thus formed is entered into 700 Kilos. of water containing
34.8 Kilos. of the sodium salt of the new alpha naphtbol-disulphonic acid and
carbonate of sodium, enough to keep the liquid alkaline until the process is completed.
The formed dye-stuff is separated by precipitation with common salt, pressing and
drying.
It dyes wool with yellowish red shades in an acidulated bath. If in the above described
example the 15.75 Kilos. of hydrochlorate of Xylidine are replaced by the equivalent
quantity of the hydrochlorates of cumidine, alphanaphthylamine, betanaphthylamine,
amido-azo benzole, and amidoazotoluole, dye stuffs are obtained which likewise yield
on woollen stuffs in acidulated baths very fair shades.

page_text: EXAMPLE II. COLORING MATTERS FROM THE NEW
ALPHANAPHTHOL-DISULPHONIC
ACID AND SULPHONATED DIAZO-COMPOUNDS.
If in example I the Xylidine is replaced by equivalent quantities of naphthionic
acid Sulphanilic acid azo alphanaphthylamine, Alphanaphthylamine disulphonic acid
azo alphanaphthylamine or Betanaphthylamine disulphonic acid azo alphanaphthyl-
amine useful colouring matters are obtained which yield on woollen stuffs in acidulated
baths the following shades :-
The colouring matter from :-
Naphthionic acid dyes
"
Betanaphthylamine-beta-sulphonic acid dyes
Sulphanilic acid azo alphanaphthylamine
Betanaphthylamine alpha sulphonic
acid azo alphanaphthylamine
Alphanaphthylamine-disulphonic acid
azo alphanaphthylamine
Beta naphthylamine disulphonic acid-
G-azo-alphanaphtylamine
وو
"
"3
brown red.
-
red.
brown.
brown.
red violet.
-
bluish-black.
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:-
A new manufacture of azo coloring matters produced by combining the new alpha-
naphthol disulphonic acid described in the Specification to Patent No. 462583 with the
diazo compounds of the following amines and amine sulphonic acids:-Xylidine,
Cumidine, Alphanaphthylamine, Betanaphthylamine, Amidoazobenzole, Amidouzo-
toluol, Naphthionic acid, Betanaphthylamine-betasulphonic acid, Sulphanylic acid-azo-
alphanaphthylamine, Betanaphthylamine-alphasulphonic acid-azo - alphanaphthyl-
anine, Alpha naphthylamine disulphonic acid-azo-alphanaphthylamino, Betanaphthyl-
amine-disulphonic acid-G-azo alphanaphthylamine.
Dated this 4th day of January 1889.
ABEL & IMRAY,
Agents for the Applicant.