Manufacture of a Solid Paste or Soap Compound for Dyeing all kinds of Textile Materials.
Year: 1896

page_text: Date of Application, 6th Aug., 1896
Complete Specification Left, 4th May, 1897-Accepted, 19th June, 1897
PROVISIONAL SPECIFICATION.
Manufacture of a Solid Paste or Soap Compound for Dyeing all
kinds of Textile Materials.
I, CARL UFFELMANN, Ph.D. of Kassel, Germany, Chemist, do hereby
declare the nature of this invention to be as follows:-
This invention relates to the manufacture of a solid paste or soap compound for
dyeing téxtile materials which contains the colouring matter and the mordant
combined in one mass, in the correct proportions for the purpose intended.
The said process is as follows:-
A suitably prepared soap such for instance as tallow or fat soap is dissolved in
an excess of alcohol, such as ethyl alcohol of 90° strength, and is at the same time
mixed with suitable anilin colouring matters in quantities up to the same weight of
the soap used.
A second solution contains a quantity of glue, gelatine, or other suitable binding
material equal to or less than the weight of the soap used, such binding material
serving at the same time for finishing or lustring the fabric to be dyed; to the
solution is also added the necessary mordant, in quantity up to the weight of the
soap, such as ammonium acetate, sodium acetate, sodium sulphate, sodium chloride,
sodium phosphate, or other suitable mordant dissolved in water. Both solutions
are mixed together, and to this mixture is added glycerine up to one third the
weight of the soap. After this has become dissolved, the mixed mass is slightly
heated under stirring in a vessel with discharge pipe.
The temperature is gradually raised, until the mass has become homogeneous
and about two thirds of the alcohol employed has been distilled off (this being
condensed in a suitable cooler in order to be used over again).
The mass is then poured out, and after solidifying it is cut into cakes of any
desired size.
By this means a solid paste or soap compound is obtained, ready for use, which,
although it may contain up to 50 per cent. of its weight in soap, does not become
decomposed, on account of the addition of large quantities of the salts employed as
mordants.
Heretofore in the manufacture of similar compounds, only small quantities of
mordant could be added, and consequently only weak tints could be dyed.
By means of the present invention it is rendered possible to combine any desired
quantity of colouring matter and mordant in a solid paste, by means of which
fabrics can be dyed and fixed in a single solution so as to effectually withstand
washing and ironing, and this not only in light and weak tints, but also in intensive
colours such as black, navy blue, dark green, claret, &c., which was not possible
heretofore, as no process was known for producing a soap paste which allowed
of the addition of larger quantities of mordant salts, such as are required for this
purpose.
When using the paste for dyeing, it is only necessary to dissolve it in hot water,
to obtain a dye bath that can be used directly for dyeing.
The above described process of dyeing by means of a paste or soap compound
can be employed for dyeing wool, cotton, half wool-silk, linen, jute, and other
textile materials by the simple solution thereof in hot water.
Dated this 6th day of August 1896.
ABEL & IMRAY,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Manufacture of a Solid Paste or Soap Compound for Dyeing all
kinds of Textile Materials.
I, CARL UFFELMANN, Ph.D. of Kassel, Germany, Chemist, 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:-
This invention relates to the manufacture of a solid paste or soap compound for
dyeing textile materials which contains the colouring matter and the mordant
combined in one mass in the correct proportions for the purpose intended.
The said process is as follows:-
A suitably prepared soap such for instance as tallow or fat soap is dissolved in
an excess of alcohol, such as ethyl alcohol of 90% strength, and is at the same
time mixed with suitable anilin colouring matters in quantities up to the same
weight of the soap used.
A second solution contains a quantity of glue, gelatine, or other suitable binding
material equal to or less than the weight of the soap used, such binding material
serving at the same time for finishing or lustring the fabric to be dyed; to the
solution is also added the necessary mordant, in quantity up to the weight of the
soap, such as ammonium acetate, sodium acetate, sodium sulphate, sodium chloride,
sodium phosphate, or other suitable mordant dissolved in water. Both solutions
are mixed together, and to this mixture is added glycerine up to one third the
weight of the soap. After this has become dissolved, the mixed mass is slightly
heated under stirring in a vessel with discharge pipe.
The temperature is gradually raised, until the mass has become homogeneous
and about two thirds of the alcohol employed has been distilled off (this being
condensed in a suitable cooler in order to be used over again).
The mass is then poured out, and after solidifying it is cut into cakes of any
desired size.
•
By this means a solid paste or soap compound is obtained, ready for use, which,
although it may contain up to 50 per cent. of its weight in soap, does not become
decomposed, on account of the addition of large quantities of the salts employed as
nordants.
Heretofore in the manufacture of similar compounds, only small quantities of
mordant could be added, and consequently only weak tints could be dyed.
By means of the present invention it is rendered possible to combine any desired
quantity of colouring matter and mordant in a solid paste, by means of which
fabrics can be dyed and fixed in a single solution so as to effectually withstand
washing and ironing, and this not only in light, and weak tints, but also in intensive
colours such as black, navy blue, dark green, claret, &c., which was not possible
heretofore, as no process was known for producing a soap paste which allowed
of the addition of larger quantities of mordant salts, such as are required for this
purpose.
When using the paste for dyeing, it is only necessary to dissolve it in hot water,
to obtain a dye bath that can be used directly for dyeing.
The above described process of dyeing by means of a paste or soap compound
can be employed for dyeing wool, cotton, half wool, silk, linen, jute and other
textile materials by the simple solution thereof in hot water.
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 :-
1. Process for the manufacture of a solid paste which by solution in hot water

page_text: is at once ready for dyeing textile materials of all kinds, consisting in the mixture
of a suitably prepared soap and colouring matter in alcoholic solution, with an
aqueous solution of the mordant corresponding to the colouring matter, mixed with
glue, gelatine or other suitable binding material, and glycerine, such mixture of the
two solutions being then subjected to heat under stirring, for distilling off a portion
of the alcohol employed, and the mass, after cooling, being cut into cakes,
substantially as described.
2. As a new manufacture a solid paste or soap compound for dyeing, prepared in
the manner set forth in the first claim.
Dated this 4th day of M. 1907
ABEL & IMRAY,
Agents for the Applicant.