Improvements in the Production of Coloured Compounds of Gallace- tophenone Within or Upon Animal and Vegetable Fibres.
Year: 1889

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Production of Coloured Compounds of Gallace-
tophenone Within or Upon Animal and Vegetable Fibres.
I, JAMES YATE JOHNSON of 47 Lincolns Inn Fields in the County of Middlesex
Gentleman do hereby declare the nature of this Invention which has been
communicated to me from abroad by The Badische Anilin and Soda Fabrik of
Ludwigshafen-on-Rhine in the Empire of Germany to be as follows:-
Gallacetophenone (Journ. Pract. Chem. XXIII, 147, 538) has as yet not been
known to be endowed with colouring properties. My foreign Correspondents have
discovered that although the said gallacetophenone itself is no colouring matter in its
free or uncombined condition, it may however be caused to impart fast and useful
colours to animal or vegetable fibres upon being made to combine with certain
metallic oxydes or mordants within or upon the said fibrous materials-In order
to effect this combination the known processes of dyeing or printing and the known
mordants may be employed. Thus by the use of alumina mordants fast yellow
colours of various shades are obtained, whilst the chromium compounds or lakes of
gallacetophenone are brown colours and its iron compounds or lakes vary in shade
from slate to black colours.
The results obtained by the use of alumina-mordants may be in some cases improved
by the employment therewith of calcium salts and superior results may be produced
upon cotton by preparing or impregnating it with a so-called Turkey-red oil mordant.
The following are examples of the manner in which yellow brown or black colours
may be produced in calico-printing, gallacetophenone is preferably employed in a
finely divided condition say in the form of a paste or pulp containing about
10 per cent. of the dry gallacetophenone (and 90 per cent. of water).
Print colour: 37
15
II. YELLOWISH-BROWN.
lbs. of gallacetophenone paste (10% dry).
lbs. of rhodanchromium liquor (thiocyanate of chromium) of 1.2
specific gravity.
7 lbs. acetic acid of 1.045 specific.gravity.
40 lbs. of thickening.

page_text: The above described print-colours are then printed and subsequently steamed (at
ordinary or elevated pressure) which may be done in the manner practised in
developing the coloured compounds or lakes of alizarine-dyes.
The goods are afterwards soaped washed and dried.
Similar colours may be produced by dyeing or printing upon wool or silk.
COMPLETE SPECIFICATION.
Improvements in the Production of Coloured Compounds of Gallace-..
tophenone Within or Upon Animal and Vegetable Fibres.
I JAMES YATE JOHNSON of 47 Lincolns Inn Fields in the County of Middlesex
Gentleman do hereby declare the nature of this Invention (which has been
communicated to me from abroad by The Badische Anilin and Soda Fabrik of
Ludwigshafen on the Rhine in the Empire of Germany) and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement :-
Gallacetophenone (Journal für practische Chemie Vol. XXIII pages 147-538)
was before this Invention not known to be endowed with colouring properties.
My foreign correspondents have discovered that although the said gallacetophenone
itself is not a colouring matter in its free or uncombined condition it may however be
caused to impart fast and useful colours to animal or vegetable fibres upon being
made to combine with certain metallic oxides or mordants within or upon the said
fibrous materials.
In order to effect this combination the known processes of dyeing or printing and
the known mordants may be employed-Thus by the use of alumina mordants fast
yellow colours of various shades are obtained whilst the chromium compounds or lakes
of gallacetophenone are brown colours and its iron compounds or lakes vary in shade
from slate colour to black.
The results obtained by the use of alumina mordants may be in some cases
improved by the employment therewith of calcium salts and superior results may
be produced upon cotton by preparing or impregnating it with a so called Turkey
red oil mordant.
The following are examples of the manner in which yellow brown or black colours
may be produced in calico printing. Gallacetophenone is preferably employed in a
finely divided condition say in the form of a paste or pulp containing about 10 per cent.
of the dry gallacetophenone (and 90 per cent. of water).

page_text: Print colour 37
:
15
7
pounds of gallacetophenone paste (containing 10 per cent. of the
dry substance).
pounds of acetate of iron liquor of 1-116 specific gravity.
pounds of acetic acid of 1045 specific gravity.
40 pounds of thickening.
The above described print-colours are then printed and subsequently steamed (at
ordinary or elevated pressure) which may be done in the manner practised in
developing the coloured compounds or lakes of alizarine dyes-The goods are
afterwards soaped washed and dried.
Similar colours may be produced by dyeing or printing upon wool or silk.
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 I
claim is-
First. The production of the herein before described coloured compounds of
gallacetophenone with metallic oxides or mordants within or upon fibrous materials
substantially as herein before described.
Second. The production of the hereinbefore described coloured compounds of
gallacetophenone with metallic oxides or mordants within or upon fibrous materials
by the use of the materials in or about the proportions as hereinbefore stated in
the several examples.
בד
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.Č., Agents.