IMPROVEMENTS IN COLOURING FIBROUS MATERIALS, YARNS, AND FABRICS
Year: 1880

page_text: LETTERS PATENT to John Henry Johnson, of 47, Lincoln's Inn Fields, in the
County of Middlesex, Gentleman, for an Invention of "IMPROVEMENTS IN
COLOURING FIBROUS MATERIALS, YARNS, AND FABRICS." A communication
from abroad by Henry Wheaton Vaughan, of Providence, Rhode Island,
United States America.
PROVISIONAL SPECIFICATION left by the said John Henry Johnson at the
Office of the Commissioners of Patents on the 20th January 1880.
JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of Middlesex,
Gentleman. "IMPROVEMENTS IN COLORING FIBROUS MATERIALS, YARNS, AND
FABRICS." A communication from abroad by Henry Wheaton Vaughan, of
Providence, Rhode Island, United States America.
This Invention relates to improvements in the process of coloring fibrous
materials, in respect of which Letters Patent were granted to William Robert Lake,
dated the 22nd October 1879, No. 4299.
According to the said process cotton, wool, or other fibrous material is colored
by having mechanically incorporated with it during working a dry powder
consisting of infusorial earth or other suitable vehicle charged with color, and with
an oleaginous constituent.
According to the present Invention it is proposed to charge the infusorial earth
or other suitable vehicle with a colorless mordant in conjunction or not with an
oleaginous constituent, and then mechanically incorporate the vehicle thus charged
with the cotton, wool, or other fibrous material, and afterwards immerse the latter
having the mordant applied to it in a dye bath; or the vehicle may be charged
simultaneously with a mordant and with coloring matter in conjunction or not
with an oleaginous constituent, and then be incorporated with the wool or other
fibrous material as before, and the color be developed by steaming, heating, or any
other suitable means. The color may be applied to or developed in the fibrous
material bearing the mordant either when the fibrous material is in the condition
of yarn, or when it has been woven into a fabric, or in any other stage of its
manufacture.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Henry Johnson in the Great Seal Patent Office on the 20th
July 1880.
JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of Middlesex,
Gentleman. "IMPROVEMENTS IN COLORING FIBROUS MATERIALS, YARNS, AND
FABRICS." A communication from abroad by Henry Wheaton Vaughan, of
Providence, Rhode Island, United States of America.
The said Invention relates to improvements in the process of coloring fibrous
materials, in respect of which Letters Patent were granted to William Robert Lake,
dated the 22nd October 1879, No. 4299.
According to the said process cotton, wool, or other fibrous material is colored
by having mechanically incorporated with it during working a practically dry
powder consisting of infusorial earth or other suitable vehicle charged with color,
and with an oleaginous constituent.
According to the present Invention the infusorial earth or other suitable vehicle
is charged with a practically colorless mordant, in conjunction or not with an
oleaginous constituent, or any other agent which will impart to the mordanted
vehicle adherent properties, and the vehicle thus charged is then mechanically
incorporated with the cotton, wool, or other fibrous material, and the latter having
the mordant applied to it is afterwards immersed in a dye bath; or the vehicle
may be charged simultaneously with a mordant and with dye stuff in conjunction
or not with an oleaginous constituent, or any other agent which will impart to the
mordanted vehicle adherent properties; and the vehicle thus charged is then
incorporated with the wool or other fibrous material as before, and the color is
developed by steaming, heating, or any other suitable means, The color may be
applied to or developed in the fibrous material bearing the mordant, either when
the fibrous material is in the condition of yarn, or when it has been woven into a
fabric, or in any other stage of its manufacture.
Having now described and particularly ascertained the nature of the said
Invention, and the manner in which the same is or may be used or carried into
effect, I would observe in conclusion that what I consider to be novel and original,
and therefore claim as the Invention secured to me by the hereinbefore in part
recited Letters Patent is,-
Coloring fibrous materials, yarns, and fabrics by mechanically incorporating with
the fibrous material during the process of manufacture an infusorial earth or other
suitable vehicle charged with a mordant, or charged with a mordant in conjunction
with dye stuff for color to be subsequently applied or developed, substantially as
and for the purpose hereinbefore described."
In witness whereof, I, the said John Henry Johnson, have to this my Speci-
fication set my hand and seal, this Twentieth day of July, One thousand
eight hundred and eighty.
J. HENRY JOHNSON. (L.S.)