A NEW PROCESS FOR DYEING IN DIFFERENT COLOURS ANY RAW WAVERED STUFF OF TWO OR MORE DIFferent TEXTILE MATERIALS
Year: 1873

page_text: PROVISIONAL SPECIFICATION left by Antoine Ray at the Office of
the Commissioners of Patents, with his Petition, on the 6th
November 1873.-A communication from abroad by Messrs. Corron
& Vignat, Dyers, at Saint Etienne (Loire), France.
I, ANTOINE RAY, Grove House, Clapham Common, S.W., do hereby
declare the nature of the said Invention for "A NEW PROCESS FOR DYEING
IN DIFFERENT COLOURS ANY RAW WAVERED STUFF OF TWO OR MORE DIFferent
TEXTILE MATERIALS," to be as follows:-
The novelty of our process for dyeing consists in obtaining upon raw
manufactured stuffs of two or more different textile materials, certain
effects of colour, which so far could only be obtained either by the
waving of materials previously dyed or by printing. The advantages of
this discovery are to obtain by means of dye the stuff being manu-
factured, 1°, a cheaper stuff; 2°, a stuff which manufactured beforehand
is capable almost instantaneously, when required, of being dyed the
colour required by the taste and fashion of the day. For example, a raw
silk and cotton stuff being given, we can dye one of these materials one
colour, and the other another, without the dye necessary for the first
injuring the colouring of the second, and vice versa. According to the

page_text: pattern of the stuff one can obtain a thousand effects, stripes, flowers, &c.
of a colour different from that of the ground.
We here show the three kinds of dye we obtain with the special
treatment for each of them. 1°, white ground and coloured pattern;
2°, black ground and coloured pattern; 3°, coloured ground and coloured
pattern. This kind of dye cannot be used with substantive colours
sticking on cotton as well as on silk; we only employ adjective colours
sticking on through the intermedium of a mordant. For the first kind,
whatever may be the colour wanted for the silk the cotton always
assumes a relative tint of the tint given to the silk, but then we take
that tint off the cotton by means of dissolvents corresponding to each
colour used with necessary moderation, in order only to attack the tint
imperfectly stuck on the cotton, without altering that of the silk. As to
the first kind, viz., white ground and coloured pattern, we give here our
process for each colour.
Fuschine Coloured.-1°, a cold balneum of carbonate of soda; 2°, a
boiling balneum with fuschine; 3°, purging of the cotton, which becomes
white by means of chlorhydric acid.
Violet Coloured.-The same process as for fuschine, whitening of the
cotton by means of permanganate of potassium, if the silk is dyed
with iodine violet, or by means of chloride of calcium with any other
violet.
Blue. The silk is dyed with the blue soluble in water in a balneum of
soap, which is neutralised by means of sulphuric acid. Then the stuff is
washed in a lukewarm balneum of soap to which some carbonate of soda
is added, and at last dipped in a boiling balneum with sulphuric acid, in
order to whiten the cotton.
Green. The aldeyde green alone can be used. The cotton is cleaned
off in a lukewarm balneum of soap; then it must be washed, and
whitened with permanganate of potassium. A better brilliancy will be
obtained by dipping the stuff in a cold balneum with sulphuric acid
mixed up with some picric acid or carmine indigo; after that the stuff
must be rinsed in cold water.
Yellow. The silk is to be dyed with picric acid in a warm balneum
acidulated with sulphuric acid, which operation must be followed by a
rinsing and whitening..

page_text: c
Coralline. This colour is obtained by means of a boiling balneum
of coralline after having previously given a brilliancy with some
chlorhydric acid. The tint is taken off the cotton stuff by a lukewarm
soap balneum, the stuff is then washed and the cotton gets a whiter
brilliancy by means of some sulphuric acid.
"
Capucine Yellow.-Brilliancy is obtained by means of a boiling
balneum with sulphuric acid; a lukewarm soaping clears this tint off
the cotton. This tint is fast on silk and resists the chloride of calcium..
Brown and Chestnut Coloured.-The silk is dyed at first with orchal,
and then the tint required is obtained with indigo and picric acid; the
brilliancy is given by a boiling balneum with sulphuric acid; the cotton
then is white.
The whitening with permanganate of potassium is obtained with
20 grammes of this salt dissolved in cold water, giving a liquor of 2° by
the alcoometer. Expanding that liquor 20 times its volume of water a
proper balneum is obtained. Brown colours require a little more con-
centrated balneum. The balneum of sulphuric acid must not be very
strong, then some bisulphid of sodium and chlorhydric acid are to be
added to it.
The second kind, viz., black ground and coloured pattern, is obtained
by dyeing the silk and then steeping the stuff in galls. One gives a
light ferrugineous colour to the stuff, and one finishes browning with a
light balneum of Campeachy wood, to which are added some protoxyde
of lead and bisulphure of arsenic. The ground becomes black without
the colours being altered.
The third kind, viz., coloured ground and coloured pattern, is thus
obtained,―
Silk Dyed Red and Cotton Green.-The silk is first dyed fuschine
colour; this tint is stripped off the cotton and then mordant is given with
tannin. The cotton is dyed with iodine green in a lukewarm balneum,
and then one steeps the stuff in a lukewarm soap balneum to take the
green tint off the silk.
Silk Dyed Violet and Cotton Yellow.-The silk is dyed violet, and
then mordant is given with acetate of alumine; and the cotton is dyed
with Cuba.

page_text: Silk Dyed Blue and Cotton Pink.-The blue taken in the balneum for
the silk being stripped off the cotton the latter is dyed with saffron-
carmine in a warm balneum with tartaric acid.
Silk Dyed Green and Cotton Violet.-The silk is dyed with aldeyde
green, which is taken off the cotton, and then mordant is given with t
tannin to the cotton, which is dyed with Hoffmann violet.
Silk Dyed Crimson and Cotton Lilac.-The silk is dyed with orchal,
the cotton whitened and mordanted with tannin, and then dyed red
violet.
So on for all the colouring materials mixed up to infinity and capable
of being fixed on stuffs made of different textile materials, according to
the general rules given above.