Improvements in the Manufacture of Paper Pulp.
Year: 1890

page_text: Date of Application, 2nd July, 1890
Complete Specification Left, 31st Mar., 1891-Accepted, 2nd May, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Paper Pulp.
We, JEAN FRANÇOIS NICOLAS BIESMAN SIMONS, of 17 Chobham Road,
Stratford, Bass and Cane Importer, and SIDNEY SMITH, of St. Stephens, The
Drive, Walthamstow, Manufacturer, both in the County of Essex, do hereby
declare the nature of this invention to be as follows:-
The object of our invention is an improved manufacture of paper pulp from
bamboo.
Hitherto bamboo has to only a small extent been used for paper making, and it
may perhaps be said that its use has not extended beyond the experimental stage
with those seeking for new paper materials.
The manner in which we propose to manufacture paper pulp from bamboo, is that
usually practised, namely by chemical means, accompanied or not with steam
pressure, and differs in no way whatever from these methods. But what we have
discovered after diligent search and many practical trials and at great cost, is that
by the preliminary detachment of the outer skin or substance to a depth of about
th of an inch or more, and rejecting this as unsuitable for paper making we obtain
a greatly improved result. This outer skin or portion may be detached by hand
with suitable knives, or by machinery, acting to cut, split, rasp, or turn it off, the
object of all these processes being to reject the outer skin or portion to about a of
an inch or more. In this outer skin or portion is situate all or nearly all the silica
and other matters which so materially interfere with making paper pulp from
bamboo. This outer skin or portion of bamboo also gives to pulp manufactured
therefrom, a color which is not easily bleached and which is apt to go back very
much when bleached. By the preliminary removal of the outer skin or portion of
bamboo, the latter will be found to yield a very superior bleachable pulp, the
"ultimates" fibres of which are asserted to be the longest known obtained
chemically from vegetable substances, in addition to which such fibres have
superior felting properties.
Dated this 2nd day of July 1890.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Paper Pulp.
We, JEAN FRANCOIS NICOLAS BIESMAN SIMONS of 17 Chobham Road
Stratford, Bass and Cane Importer, and SIDNEY SMITH of St. Stephens, The
Drive, Walthamstow, Manufacturer, both in the County of Essex, 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:
The object of our invention is an improved manufacture of paper pulp from
bamboo.
Hitherto bamboo has to only a small extent been used for paper making and it
may perhaps be said that its use has not extended beyond the experimental stage
with those secking for new paper materials.
The manner in which we propose to manufacture paper pulp from bamboo is that
LD 173

page_text: usually practised in the manufacture of pulp from woody materials, namely, by
chemical means accompanied or not with steam pressure and differs in no way
whatever from these methods.
But what we have discovered after diligent search and many practical trials and
at great cost is that by the preliminary detachment of the outer skin or substance
to a depth of about 16 of an inch or more and rejecting this as unsuitable for paper
making we obtain a greatly improved result. This outer skin or portion may be
detached by hand with suitable knives or by machinery, acting to cut, split, rasp,
or turn it off, the object of all these processes being to reject the outer skin or
portion to about a of an inch or more. In this outer skin or portion is situate
all or nearly all the silica and other matters which so materially interfere with the
process of disintegration of the bamboo when making paper pulp therefrom.
This outer skin or portion of bamboo also gives to pulp manufactured therefrom
a color which is not easily bleached and which is apt to go back very much when
bleached. By the preliminary removal of the outer skin or portion of bamboo the
latter will be found to yield a very superior bleachable pulp the ultimate fibres of
which are asserted to be the longest known obtained chemically from vegetable
substances in addition to which such fibres have superior felting properties.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed wc declare that what we
claim is :-
1. In the manufacture of paper pulp from bamboo, the preliminary removal and
rejection of the outer skin or substance of the bamboo, for the purpose described.
2. In the manufacture of paper pulp, the employment of bamboo from which the
outer skin or substance has been removed and the treatment of such decorticated
bamboo by the process usually adopted in preparing paper pulp from vegetable
materials.
J. F. N. B. SIMONS.
S. SMITH.
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.