Many additional items of interest might be described in connection with
the methods of manufacturing paper, but as this work is intended for the
general reader, rather than for the manufacturer, those wishing further
information are referred to technical works on the subject.
The best linen rags are used for the highest grades of writing and bond
papers, while ordinary note, letter, and flat papers are made from
cotton rags. In some mills, such as the government mill at Dalton,
Massachusetts, where the government paper is made for banknotes, and in
others where the finest ledger papers are manufactured, none but new,
clean rags are used. These come from the remnants left in the making of
linen goods. In the government mill where is made the paper for our
national currency, or "greenbacks," there is a special attachment on the
machine for introducing into the paper the silk threads that are always
to be seen in our paper money. This attachment is just above the "wire"
on the machine, and consists of a little conducting trough, through
which flows, from a receptacle near the machine, a stream of water
holding the silk threads in solution.
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