An Improved Method of Degumming or Separating the Filaments of Stalk Fibres.
Year: 1895

page_text: Date of Application, 12th Feb., 1895
Complete Specification Left, 9th Nov., 1895-Accepted, 11th Jan., 1896
PROVISIONAL SPECIFICATION.
An Improved Method of Degumming or Separating the Filaments
of Stalk Fibres.
KENNETH THOMAS SUTHERLAND 39 Pritchard Street Chorlton-upon-Medlock,
Manchester Chemical Manufacturer, aud GEORGE ESDAILE The Old Rectory,
Platt Lane Rusholme Manchester Civil Engineer do hereby declare the nature of
this invention to be as follows:-
We place the stalk fibres or ribbons in a receptacle containing a neutral or
nearly neutral solution to be made from a resin soap or from any saponaceous
resinous preparation. In this bath or solution we boil the material, or work it hot
for some time, the duration of the operation to depend on the fibre under treatment,
but in general from one hour and a half to three hours. In some cases it will be
found that some stalk fibres will be sufficiently opened after the above operation
and ready for spinning, in that case they can be wrung out and washed and dried, but
we prefer to pass them either after they are dried or whilst wet through a softening
solution or solutions preferably weak alkaline, in which we work them, if hot, for
only a short time, but if cold for a longer period, till they are softened, then
wring out wash and dry.
Dated this 11th day of February 1895
K. T. SUTHERLAND.
GEORGE ESDAILE.
An Improved Method of Degumming or Separating the Filaments
of Stalk Fibres.
KENNETH THOMAS SUTHERLAND 39 Pritchard Street, Chorlton-upon-Medlock
Manchester Chemical Manufacturer, GEORGE ESDAILE The Old Rectory, Platt
Lane, Rusholme, Manchester 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 :-
We place the stalk fibres or ribbons in a receptacle containing a neutral or
nearly neutral solution, we prefer it however neutral, to be made from a resin soap
or from any saponaceous resinous preparation, in the proportion of, from 6 oz. to
12 oz. to each gallon of water. The resin soap we use is made from the common
resin of commerce (colophony) saponified in the usual way by caustic soda, the
resulting product being of a thick viscuous consistency. In this bath or solution
we boil the material or work it hot for some time, the duration of the operation to
depend on the fibre under treatment, but in general from one hour and a half to
three hours. In some cases it may be found that some stalk fibres will be
sufficiently opened after the above operation and ready for spinning, in that case
they can be wrung out, and washed and dried, but we prefer to pass them either
after they are dried, or whilst wet, through a softening solution or solutions
preferably weak alkaline to stand about 3 to 4 Twaddell in which we work them,
Dil

page_text: if hot for a shorter period, from half an hour to one hour, than when worked cold,
from two to three hours, but in either case we work them till the fibres are
softened, then wring out, wash in water and dry.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is,
"The use of a neutral or nearly neutral saponaceous resinous solution for the
degumming or separating the filaments of stalk fibres."
Dated this 8th day of November 1895.
K. T. SUTHERLAND.
GEORGE ESDAILE.