Process of Mercerisation of Yarns and Threads made from Vegetable Fibres.
Year: 1898

page_text: Date of Application, 30th Mar., 1898-Accepted; 21st Jan., 1899
0
COMPLETE SPECIFICATION.
Process of Mercerisation of Yarns and Threads made from
Vegetable Fibres.
I, THEODOR EUGEN SCHIEFNER, of 11, Grillegasse, 6, Vienna, in the Austro-
Hungarian Empire, 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 process which has for its object the glossing
("mercerising") of yarns or threads made from vegetable fibres without resorting
to the stretching of the yarns or threads during, before, or after, the treatment
of the same by the mercerising liquids, whereby the great inconveniences connected
with the stretching operation are entirely obviated.
According to the invention the above mentioned object is obtained in such a
manner that all the operations to which the treated yarns or threads are sub-
jected, that is to say, the action of the mercerising liquids, the rinsing or washing
out and the drying, are performed on the separate yarns or threads, the shrinkage
of the yarns or threads being obviated by winding up the same upon a reel or like
device.
!
The accompanying drawings show by way of an example an arrangement by
means of which the said process can be advantageously carried out in practice.
The yarns or threads, either wound on the usual spools, bobbins or cops a, as
they are furnished from the spinning or doubling machines, or in the shape of
skeins, are arranged on a frame and thence the separate yarns or threads are
conveyed over rolls 6 through boxes or other receptacles cc ccntaining the mer-
cerising baths.
From the last receptacle the mercerised yarns are conducted to a reel d or to
any suitable device and wound up on the same in the desired lengths.
The reel or its equivalent revolves in a receptacle f to which fresh water is
constantly fed so that the separate yarns which have passed the mercerising baths
and have been impregnated therein are washed out during the winding up on
the rotated reel. This washing operation is in so much more efficient, as it takes
place during a rapid rotation of the reel and whilst the yarns are in their natural
position exposed to the action of the washing medium.
When the washing operation has been completed the washing water is drained
off from the receptacle f and the yarns or threads are dried on the reel or equiva-
lent during a consant rotation of the latter. For this purpose the reel is placed
in a heated drying chamber.
The process can also be carried out in such a manner that the yarns or threads
instead of being wound up after their impregnation in the mercerising liquid,
are treated with this liquid upon the rotated reel or its equivalent either imme-
diately during the reeling operation or after the same whereupon they are washed
and finally dried upon the reel.
In this first case the yarns or threads fed from the spools, bobbins, cops or
skeins are wound upon a reel or other suitable device rotated above a receptacle

page_text: containing the mercerising liquid, the arrangement being such that the portion
of the reel which for the time being is lower-most, is constantly immersed in the
liquid.
In the second case the yarns or threads are wound up in skeins upon the reel
and the latter is rotated above the mercerising receptacle in the same manner as
above indicated.
When, in either of the above two cases, the impregnation of the yarns or
threads has been carried on to the desired degree, the mercerising liquid is
drained off from the receptacle and pure water is allowed to run through the same.
The reel being continuously rotated the wound up and already mercerised yarns
or threads are washed out in the water.
The proceeding can also be modified in such a manner that the reel or its equiva-
lent with the mercerised yarns or threads wound up on the same is removed from
its bearings and arranged to rotate above a second receptacle containing running
water in which the lower part of the rotating reel always remains immersed.
In all the described modifications of the process the shrinking of the yarns or
threads is obviated in a most efficacious manner without there being the least
necessity to subject the treated goods to a stretching operation, and in all cases
the yarns or threads are dried upon the reel.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is: :―
1, A process for the "mercerising" of yarns or threads from vegetable fibres
so arranged and constituted that the yarns or threads drawn from the spools,
bobbins or cops are treated with the mercerising fluids and further upon winding
up on reels or like devices are washed and dried on the same in order to prevent
the treated yarn or thread from shrinking.
2. A modification of the process claimed in the preceding claim consisting in
that the reel or like device on which the yarn or thread is wound off from the
spools, bobbins cops or the like or on which it was originally placed in the form of
skeins is arranged to rotate over a trough containing the mercerising fluid so
that the lowest side of the reel or its equivalent dips into the said fluid and is
similarly washed out and dried upon the same reel.
Th: 20th love of a 1900
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham,
Agents.