An Improved Process for Rendering Textile Materials, Paper, Wood Substances, and the like Waterproof, and for Finishing and Protecting them against Spotting and Moths.
Year: 1897

page_text: Date of Application, 31st Dec., 1897-Accepted, 2nd Apr., 1898
An Improved Process for Rendering Textile Materials, Paper,
Wood Substances, and the like Waterproof, and for Finishing
and Protecting them against Spotting and Moths.
A communication by JOSEPH RUDOLF, of 31, Thalstrasse, Gera-Reuss, in the Empire
of Germany, Chemist.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of The Agency for Foreign Patent
Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both in the
County of Lancaster, 118, New Street, Birmingham, in the County of Warwick, and
322, High Holborn, in the County of Middlesex, Civil Engineer, 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:-
Hitherto paraffin, stearate, wax and the like have been employed in the following
ways for rendering fabrics and the like waterproof, first, by causing a hot roller to
rotate against the said solid substances and then conveying the goods against the said
roller, or secondly, by dissolving these substances in benzole, benzine or the like and
saturating the substances with such solution.
The first named process has the drawback that it is very difficult to effect an even
distribution or coating. The second process is too dear in consequence of the solvents
employed.
This invention has for its object an improved process for rendering textile materials,
paper, wood substances and the like, waterproof and for protecting them against
spotting and moths. The improved process is characterised by substances insoluble
in water, such for instance as solid hydrocarbon, stearine, palmitine and their metallic
compounds, (such as stearate, palmitate and resinate of aluminium, calcium, zinc, and
the like compounds) vegetable wax and beeswax, resins and the like being
(a) emulsioned or distributed in the liquid condition in hot water by means of a
centrifugal or other device for producing violent agitation in such a way that the
mixture approximates to a solution, the articles, materials or substances being
then imprinted, coated or otherwise saturated with this mixture; or
(b) by the aforesaid substances being melted in a heated trough and conveyed on
to the articles, materials or substances by means of a pressure roller either separately
or in mixtures.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed, as communicated to me by my
foreign correspondent, I declare that what I claim is :-
1. The improved process for rendering textile materials, paper, wood substances
and the like waterproof and for finishing and protecting them against spotting and
moths, which consists in conveying on to the said materials, substances insoluble in
water, such as solid hydrocarbons, resins, stearine and palmitine as well as their
metallic compounds, vegetable wax, beeswax, and the like in the form of an emulsion
of such substances substantially as hereinbefore described.
2. The improved process for rendering textile materials, paper, wood substances
and the like waterproof and for finishing and protecting them against spotting and

page_text: moths which consists in melting solid hydrocarbons, resins, stearine and palmitine as
well as their metallic compounds, vegetable wax, beeswax and the like, and conveying
the said melted substances on to the materials by means of pressure rollers
substantially as herein before described.
Dated this 30th day of Decombes 1007