Improvements in Dyeing Cotton or other Vegetable Fibres with Blended Colours.
Year: 1888

page_text: Date of Application, 10th Dec., 1888
Complete Specification Left, 5th Sept.. 1889-Accepted. 26th Oct.. 1889
PROVISIONAL SPECIFICATION.
[Communicated from abroad by LA SOCIÉTÉ ANONYME DES MATIÈRES COLORANTES
ET PRODUITS CHIMIQUES DE ST. DENIS, of 105, Rue Lafayette, Paris, France.]
Improvements in Dyeing Cotton or other Vegetable Fibres with
Blended Colours.
I, JOHN JMRAY, of No. 28 Southampton Buildings, Chancery Lane, in the County of
Middlesex, Consulting Engineer and Patent Agent, do hereby declare the nature of
this invention to be as follows:-
For obtaining on cotton or like textures-colours that are fast against soap, light
and chemical agents, usually dyes which are derived from anthracene but are scarcely
soluble in water, or alizarine and analogous dyes are employed.
The use of these renders necessary preliminary preparations, mordants and other
treatments of various kinds, occupying more or less time.
In order to avoid the delay and trouble involved in these treatments, and at the
same time to obtain thoroughly fast tints, the texture is, according to this invention,
dyed at once by simple immersion in a bath containing blended colours along with
the substances necessary to make them take on the texture.
For producing the blended colours No. 2 (mauve) for example a careful mixture is
made of 2 parts by weight of alizarine No. 1, 1 part of silicate of soda at 45°-
2 parts of pyrolignite of iron. If alizarine No. 3 were used and if for the pyrolignite
of iron were substituted a salt of tin and acetole of alumina, and oil for the silicate
of soda, the blend No. 3 would be produced having a rose tint.
With orange
alizarine would be produced the blend No. 4 of chamois tint; with ceruleine,
bisulphite of soda, alumina, salt of tin and a little oil would be produced the blend.
No. 5 of green tint, and various tints with other mixtures.
For applying these dyes, as for instance the mauve No. 2, the mixture, 10 Kilos.
in weight, is diluted in 2500 litres of water, forming a bath in which when cold are
immersed 100 Kilos. of cotton.
The whole is well stirred and heated gradually to attain boiling point in half or
three quarters of an hour. The texture, after dyeing, is washed, soaped thoroughly
washed again and dried.
In this way may be obtained dyes very fast against soap, cold, hot or boiling,
against sulphites or bisulphites, chloride of lime &c.
Dated this 10th day of December 1888
ABEL & IMRAY,
Agents for the Applicant
COMPLETE SPECIFICATION.
Improvements in Dyeing Cotton or other Vegetable Fibres with
Blended Colours.
I, JOHN IMRAY, of No. 28 Southampton Buildings, Chancery Lane, in the County
of Middlesex, Consulting Engineer and Patent Agent 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 :-
. For obtaining on cotton or like textures colours that are fast against soap, light and
chemical agents, usually dyes which are derived from anthracene but are scarcely
soluble in water, or alizarine and analogous dyes are employed.
The use of these renders necessary preliminary preparations, mordants, and other
treatments of various kinds, occupying more or less time.

page_text: In order to avoid the delay and trouble involved in these treatments, and at
the same time to obtain thoroughly fast tints, the texture is, according to this
invention, dyed at once by simple immersion, in a bath containing blended colours
along with the substances necessary to make them take on the texture.
For producing the blended colours No. 2 (mauve) for example a careful mixture is
made of 2 parts by weight of alizarine No. 1, 1 part of silicate of soda at 45°-
2 parts of pyrolignite of iron. If alizarine No. 3 were used and if for the
pyrolignite of iron were substituted a salt of tin and acetate of alumina, and oil
for the silicate of soda, the blend No. 3 would be produced having a rose tint. With
orange alizarine would be produced the blend No. 4 of chamois tint; with ceruleine,
bisulphite of soda, alumina, salt of tin and a little oil would be produced the
blend No. 5 of green tint, and various tints with other mixtures.
For applying these dyes, as for instance the mauve No. 2, the mixture, 10 Kilos.
in weight, is diluted in 2500 litres of water, forming a bath in which when cold are.
immersed 100 Kilos. of cotton.
The whole is well stirred and heated gradually to attain boiling point in half
or three quarters of an hour. The texture, after dyeing, is washed, soaped thoroughly,
washed again and dried.
In this way may be, obtained dyes very fast against soap, cold, hot or boiling,
against sulphites or bisulphites, chloride of lime &c.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is :-
-
The herein described process for dyeing cotton or other vegetable fibros and
textures without preliminary mordanting or like treatment, by employing a bath of
blended colours along with substances necessary to make the colours take on the
inaterial.
Dated this 5th day of September 1889.
ABEL & IMRAY,
Agents for the Applicant.