IMPROVEMENTS IN FIXING ANILINE OR OTHER COLOURS AND DYES."
Year: 1880

page_text: LETTERS PATENT to Samuel Mellor, of Patricroft, in the County of Lancaster,
for an Invention of "IMPROVEMENTS IN FIXING ANILINE OR OTHER COLOURS
AND DYES."
PROVISIONAL SPECIFICATION left by the said Samuel Mellor at the Office
of the Commissioners of Patents on the 5th May 1880.
SAMUEL MELLOR, of Patricroft, in the County of Lancaster.
IN FIXING ANILINE OR OTHER COLOURS AND DYES."
"IMPROVEMENTS
These improvements relate to the fixing of aniline or other colours and dyes,
either alone or in conjunction with any form of tannin, and the Invention consists
in the use of the undermentioned salts of antimony for that purpose, namely:-The
fluorides of antimony, the double fluorides of antimony and ammonium, the double
fluorides of antimony and sodium, or the double fluorides of antimony and any
other metal or metalloid (such as silicon, boron, and others); or instead of fluorides
the chlorides of antimony, or the double chlorides of antimony and ammonium, the
double chlorides of antimony and sodium, or the double chlorides of antimony and
any other metal. In fact any combination of antimony with chlorine or fluorine,
in any proportions, either alone or in conjunction with any other metal or salt.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Samuel Mellor in the Great Seal Patent Office on the 4th November
1880.
SAMUEL MELLOR, of Patricroft, in the County of Lancaster.
IN FIXING ANILINE OR OTHER COLORS AND DYES."
" IMPROVEMENTS
These improvements relate to the fixing of aniline and other colors and dyes
used in the dyeing and printing of cotton, silk, or other textile fabrics, whether
alone or in conjunction with any form of tannin, and the Invention consists
in the use therefor of the fluorides of antimony, the fluosilicates of antimony, the
double fluorides of antimony and sodium, or of antimony and potassium, or of
antimony and ammonium, the fluoantimoniates of sodium, potassium, or ammonium,
the fluo-oxy-antimoniates of sodium, potassium, or ammonium, or any combination
of fluorine and antimony, either by themselves or in conjunction with any other
metal or metalloid.
Although I claini as my Invention the use for this purpose of any of the before
mentioned compounds of antimony yet I use in preference (chiefly to reduce the
cost) the double fluorides of antimony and sodium, and the fluo-antimoniates of
sodium, potassium, or ammonium, the former when an acid salt and the latter when
a neutral or alkaline salt is required to meet the varying qualities and conditions
of the colouring matters to be fixed.
In using either of the above named salts of antimony I make a bath containing
such a quantity of any of these salts as will equal about from one quarter of an
ounce to one 'ounce of metallic antimony to the gallon of solution.
Through this bath (either cold or at any temperature up to boiling point) the
cloth previously dyed, or printed, or otherwise prepared with the colours requiring
fixing is passed, then washed and finished in the usual way.
Having now described the nature and object of my said Invention, together with
the manner in which the same is to be or may be performed or carried into
practical effect, I wish it to be understood that I do not confine myself to the
precise details herein mentioned, nor to the exact quantities stated, as they may be
modified without departing from the spirit of my Invention, but that which I
claim as my Invention is the use of the fluorides and the fluo-salts of antimony
above specified, or any other soluble fluoantimoniates for the said purpose of
fixing various aniline and other colours used by the dyer and printer whether
alone or in conjunction with tannin..
In witness whereof, I the said Samuel Mellor, have hereunto set my hand and
seal, this Second day of November, in the year of our Lord Oue thousand
eight hundred and eighty.
SAMUEL MELLOR. (L.S.)