Bamboo, Considered as a Paper-making Material: With remarks upon its cultivation and treatment. Supplemented by a consideration of the present position of the paper trade in relation to the supply of raw material.Routledge, Thomas
Science
Bamboo, Considered as a Paper-making Material: With remarks upon its cultivation and treatment. Supplemented by a consideration of the present position of the paper trade in relation to the supply of raw material.
Routledge, Thomas
Bamboo; Bamboo-pulp industry; Papermaking
The leys are thus used again and again, (each successive change,
or charge of ley, carrying forward the extractive matters it has
dissolved from the fibre with which it has been in contact) until
exhausted or neutralized, (when they are discharged), fresh leys
being methodically, and successively, supplied, until by degrees, the
extractive matters combined with the fibre or fibrous material have
been rendered sufficiently soluble, when hot water for washing, or
rinsing, is in the same continuous manner run successively from vessel
to vessel, over, and through, the material contained therein, until
the extractive matters rendered soluble by the previous alkaline baths
have been carried forward and discharged, leaving the residuary fibre
sufficiently cleansed.
By this system of boiling in continuity, until all the effective
alkali in the leys is exhausted or neutralized, I realize an economy
of from 30 per cent. to 40 per cent. of soda over the ordinary process
of boiling, and by the subsequent washing, or rinsing, in the same
continuous manner, without removing the material from the vessels, the
normal structure of the fibre is in a great measure retained, waste is
minimized, and thus, while being thoroughly cleansed and freed from
extraneous matter, the strength and staple of the fibre are preserved;
a considerable saving of fuel results from the heated liquors being
used again and again, less steam being required, as also less water,
while at the same time economy of both labour and power is effected
over the ordinary system.
Assuming the boiling and succeeding washing processes to be concluded,
and the material ("BAMBOO") in one of the vessels of the series in its
regular succession, to be found sufficiently treated and cleansed, a
final cooling water is run on and through the fibre, which is then
drained, and the contents of the vessel (disconnected for the time
being from the series) emptied into a waggon running on a railway,
by which it is conducted to a press or otherwise to abstract all the
remaining moisture possible.
The dry, or semi-dry fibre, is then submitted to the action of a
willow, or devil, by means of which it is opened or teazed out, and
converted readily into a tow-like condition, when it is dried by a
current of heated air, induced by a fan-blast, and finally baled up for
storage or transport, in a similar manner to COTTON or JUTE.
In this condition of "_Paper-Stock_," it may be kept an indefinite
length of time without injury, and when received by the
Paper-manufacturer requires merely soaking down and bleaching, to fit
it for making into paper, either by itself, or used as a blend with
other materials, as desired.
Public-domain text, read in full here on John Shaqi.
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