CERTAIN IMPROVEMENTS IN DYEING
Year: 1849

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JEAN
ADOLPHE CARTERON, now of Paris, in the Republic of France, but late of the
Haymarket, in the County of Middlesex, England, Chymist, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Fifth day of February,
One thousand eight hundred and forty-nine, in the twelfth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto the
said Jean Adolphe Carteron, my exors, admors, and assigns, Her especial
licence, full power, sole privilege and authority, that I, the said Jean Adolphe
Carteron, my exors, admors, and assigns, or such others as I, the said Jean
Adolphe Carteron, my exors, admors, or assigns, should at any time agree
with, and no others, from time to time and at all times during the term of
years therein expressed, should and lawfully might make, use, exercise, and
vend, within England, Wales, and the Town of Berwick-upon-Tweed, and
in the Islands of Guernsey, Jersey, Alderney, Sark, and Man, and also in
all Her said Majesty's Colonies and Plantations abroad, my Invention of
"CERTAIN IMPROVEMENTS IN DYEING;" in which said Letters Patent is contained
a proviso that I, the said Jean Adolphe Carteron, shall cause a particular
description of the nature of my said Invention, and in what manner: the
same is to be performed, by an instrument in writing under my hand and
seal, to be inrolled in Her said Majesty's High. Court of Chancery within

page_text: six calendar months next and immediately after the date of the said in part
recited Letters Patent, as in and by the same, reference being thereunto had,
will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Jean Adolphe Carteron, do hereby declare that the nature of my said
Invention, and in what manner the same is to be performed, are fully
described in and by the present Specification thereof (that is to say):-
The nature of my said Invention consists in the composition and preparation
of certain mordants to be used in dyeing, in lieu of the cream of tartar and
cream of tartar and alum now commonly used, whereby colors of superior
brilliancy and variety will be produced at less cost than heretofore.
The said mordants are four in number, and compounded and prepared as
follows:-
First mordant. I dissolve eighteen parts of common salt and nine parts of
tartaric acid in sixty-seven parts of boiling water, and add to this solution
eighteen parts of the acetic acid of commerce. About one pound weight of
this mordant is equivalent for dyeing purposes to about one pound of cream of
tartar, and it is employed in precisely the same manner.
It is suitable for
crimson and all reddish dyes.
Second mordant.-I take two parts of the residuum of the manufacture of
nitric acic (namely, sulphate of soda), made with nitrate of soda and one part
of alum, and triturate and mix the whole well together. About two pounds
and a quarter of this mordant is equivalent to half that quantity of cream
of tartar, and employed in the same way. It is suitable for all olive and
brown dyes.
Third mordant.-I take one part of the residuum of the manufacture
of sulphuric acid made with nitrate of potass and five parts of 'common salt,
triturate and mix as before. It is to be used in the same proportions to cream
of tartar as the second mordant, and is applicable to black and dark colours
only.
Fourth mordant.-I dissolve six parts of sulphate of alumina, three parts of
nitric acid and one part of caustic lye of 24° Beaumé, in twenty quarts of
boiling water. This mordant may be used in dyers' baths for green dyes of all
shades, and fancy dyes, and in the proportion of one quart for every twenty
pounds weight of woven fabrics.
And I declare that wherever in the preceding statement I have used the
term "parts," I mean parts by weight.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that the improvements in

page_text: dyeing which I claim as constituting my said Invention are the four mordants
aforesaid, each in the peculiar combination of materials of which it is
composed, and mode of compounding the same.
In witness whereof, I, the said Jean Adolphe Carteron, have hereunto
set my hand and seal, this Thirtieth day of July, in the year of our
Lord One thousand eight hundred and forty-nine.
J. ADOLPHE (L.s.) CARTERON.
Taken and acknowledged by Jean
Adolphe Carteron (party hereto), at
Paris, in the Republic of France,
this Thirtieth day of July, 1849,