Improvements in Dyeing Textile Fibres, Yarns, and Fabrics.
Year: 1898

page_text: Date of Application, 14th Feb., 1898
Complete Specification Left, 5th Nov., 1898-Accepted, 10th Dec., 1898
PROVISIONAL SPECIFICATION.
Improvements in Dyeing Textile Fibres, Yarns, and Fabrics.
We, JOHN THOMAS REID, of Caledonian Works, Whit Lane, Pendleton, near
Manchester, in the County of Lancaster, Dyer and Calico Printer, and HENRY
THORP, of the same address, Foreman Dyer, do hereby declare the nature of this
invention to be as follows:-
:-
.
Our invention relates to improvements in dyeing vegetable fibres, yarns and
fabrics, hereinafter for convenience of description referred to as fibrous materials,
and the object of our invention is to obtain certain fast and permanent colours
known as Khaki" shades.
"
In carrying our invention into effect we first scour the fibrous materials, then
dry, and run them through oleine oil, dry, and afterwards impregnate them with
alizarine blue dissolved in a solution of bisulphite of soda or potash and mixed
with a solution of acetate of chromium and acetate of iron. We then dry the
fibrous materials and then steam or age them and subsequently develope and
fix the colour by treatment with a suitable alkali or alkaline solution such as
a solution of caustic soda and lime. We then, by preference, soap the fibrous
materials and finally wash and dry them.
For full shades we may repeat the above process as often as required.
In place of the alizarine blue we might employ gallein coerulein or like pro-
duct of anthracene, or cobalt; and in place of the acetates we might employ any
other suitable salts of chromium and iron.
That th: 19th Jalan 1000
H. B. BARLOW & GILLETT,
Agents for Applicants.
COMPLETE SPECIFICATION (AMENDED).
Improvements in Dyeing Textile Fibres, Yarns, and Fabrics.
We, JOHN THOMAS REID, of Caledonian Works, Whit Lane, Pendleton, near
Manchester, in the County of Lancaster, Dyer and Calico Printer, and HENRY
THORP, of the same address, Foreman Dyer, 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:-
Our invention relates to improvements in dyeing vegetable fibres, yarns and

page_text: In carrying our invention into effect we first scour the fibrous materials to free
them from all impurities, then dry, and when dry may or may not run them
through a bath of oleine oil in the proportion of say two quarts of oil to sixteen
gallons of water, although in practice we have not found this essential as equally
good results are obtained either with or without the oleine oil bath.
We then dry the fibrous materials and afterwards impregnate them with the
following dye liquor;-
Twenty gallons of a solution of acetate of chromium (20 degrees Twaddell).
Twenty gallons of a solution of acetate of iron (12 degrees Twaddell).
Eight ounces of alizarina blue S. dissolved in four gallons of a solution of
bisulphite of soda or potash (54 degrees Twaddell).
When thoroughly impregnated with the above liquor we mangle the fibrous
materials and then dry them.
We then age the fibrous materials or steam thean and subsequently develope
and fix the colour by passing the fibrous materials through an alkaline bath
composed say of
Sixteen gallons of water.
Eight pounds of common soda,
Three gallons of lime water.
but we may employ any other suitable alkali or alkaline solution, except a
soluble silicate in the process described in the Specification of Gatty's Patent
Numbered 7041 of 1897.
We then by preference soap the fibrous materials and finally wash and dry
them.
For full or dark shades we may repeat the above process as often as required
and may vary the proportions for different shades as required.
In place of the alizarine blue S., we might employ ordinary alizarine blue,
gallein, coerulein, or like product of anthracene; and in place of the acetates
we might employ any other suitable salts of chromium and iron.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that we
are aware of the Patent numbered 11456 of 1884 granted to F. A. Gatty as well
as the aforesaid Patent numbered 7041 of 1897 granted to F. A. Gatty and
Company Limited and V. H. Gatty, and we desire it to be understood that we
do not herein make any claim to any of the inventions claimed in the speci-
fications of the said Letters Patent but what we claim is:-
The process of dyeing vegetable fibrous materials certain fast and permanent
colours known as "Khaki" shades which process consists essentially in impreg-
nating the fibrous materials with a mixed solution of alizarine blue S., chromium
and iron salts, then drying, ageing or steaming and developing the colour by
treatment with an alkali substantially as herein set forth.
Dated this 4th day of November 1898.
H. B. BARLOW & GILLETT,
Agents for Applicants, 17, St. Ann's Square, Manchester.