Process for Rendering Fabrics and Clothing Materials Acid-proof.
Year: 1897

page_text: Date of Application, 16th Dec., 1897-Accepted, 7th May, 1898
COMPLETE SPECIFICATION.
Process for Rendering Fabrics and Clothing Materials Acid-proof.
I, JULIUS VICTOR ESOP, of 29, St. 1. Seilerstrasse, Hamburg, in the Empire of
Germany, Works' Manager, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
In several branches of industry and notably in the chemical industry where a
considerable amount of acid vapours are set free in the various processes and opera-
tions, which may seriously affect the clothing material of the operators, it is of the
greatest importance to obtain a clothing material which is resistant to these acids
and is in no way affected thereby.
The present invention has for its object to render fabrics and clothing material of
every kind proof against destruction by acid vapours and resistable to liquid acids
by covering it superficially according to the usual processes of spreading or callen-
dering at present in use with completely acid-proof material.
It has been ascertained that natural or vulcanised rubber is a suitable material
wholly indifferent to acids and this material may be employed according to the
present invention for the purpose of rendering fabrics and clothing material acid-
proof, but other substances such as resin, gum-lack, varnish and other suitable
materials singly or mixed together are not excluded from being applied according
to the present invention.
The acid-proof material such as vulcanised rubber may be applied to the fabric
or clothing material upon which it is required for the purpose of the invention by
the usual means employed in the production of rubber preferably by application
upon fabric or clothing material in a spreading machine, while the material may be
coloured in the mixing machine or masticator by the employment of certain pig-
ments or compounds, while it may be applied upon the actual fabric in a number of
layers which are vulcanized according to the cold or warm processes usually
employed in the vulcanization of india-rubber. The layers of rubber are applied
in strength and number according to the quality of material required and may be
varied according to the particular use for which the material may be required as a
c'othing material for resisting acid vapours and liquids.
It is evident that the use of such material coated as hereinbefore described would
be superior to the pure woollen material hitherto employed as aprons and general
clothing by the operators in industries in which they are affected by acid vapours,
as such pure woollen material has been proved not to be effective.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
-
Process for rendering fabrics and clothing materials of any suitable kind acid-
proof consisting in the coating thereof with a layer of acid-proof vulcanized rubber

page_text: or with other acid-proof material such as resin, gum-lack, varnish and the like
substantially as and for the purpose described.
1511
eT
1004
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.