A New or Improved Process for Rendering Textile Materials Waterproof and Flame-proof.
Year: 1894

page_text: Date of Application, 19th Mar., 1894-Accepted, 21st Apr.,
1894.
COMPLETE SPECIFICATION.
A New or Improved Process for Rendering Textile Materials
Waterproof and Flame-proof.
We HENRY ROUS and GEORGE NORMAN WEST, trading as Rous and Company
of 220 and 222, Edgware Road, London W. Clothiers 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 :-
This invention relates to a New or Improved Process for Rendering Textile
Materials Waterproof and Flame-proof; and consists essentially in submitting the
fabric, before being cut up, to the action of certain chemical solutions all as
hereinafter more particularly defined.
The process and treatment in accordance with this invention are applicable to all
textile fabrics including silks and cotton in the piece such as are used for clothing,
and other purposes, but are particularly adapted to woollen fabrics whether plain,
fancy, or printed.
Now in accordance with this invention we first prepare a solution consisting of
sugar of lead and tepid water approximately in the proportion of lb. of sugar
of lead to one gallon of tepid water, which we allow to remain for a period of six
hours. A second solution consisting of alum and tepid or warm water is also
prepared in the approximate proportions of lb. of alum to one gallon of water
which is also allowed to remain for six hours. The two solutions are then mixed
together, preferably in a wooden vessel having a tap inserted about four inches
from the bottom. The whole is then well stirred together and allowed to stand for
36 hours when a sediment will be found remaining at the bottom. The mixed
solutions are then drawn off into a suitable vessel and the fabric in the piece is
soaked or immersed therein for 48 hours to allow of same becoming thoroughly
saturated.
The fabric is afterwards taken out and dried, and then soaked or immersed for
36 hours in another solution composed of tungstate of soda in approximately the
proportion of lb. to one gallon of water to which is added 16. of bromide of
potassium. Prior to immersing the fabric therein this latter solution should be
allowed to stand for 24 hours or until the ingredients are dissolved by the water.
After the immersion of 36 hours, as aforesaid, the fabric is taken out, steamed,
dried and hydraulically pressed and finished.
In preparing the solutions before mentioned regard must be had to the thickness
and weight of the fabric to be treated, the heavier materials requiring a stronger
solution, that is to say, the exact quantities of the chemicals dissolved will vary to
some extent in accordance with the thickness and weight of the fabric to be
rendered flame-proof and waterproof, we therefore do not bind ourselves to the
exact quantities and proportions hereinbefore set forth but have described solutions
which we believe will be found the best for carrying our invention into practical
effect.
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 what
we claim is
The
now
AH
improved
PA0055
for rendering textile fabrine maternenf and

page_text: flame-proof before the pieces are cut up for use in making clothing, wearing apparel
and the like substantially as hereinbefore described.
Dated this 1st day of March 1894.
HUGHES, ELI & HUGHES,
76, Chancery Lane, W.C., Agents for the Applicants.