THE STORY OF ARTIFICIAL SILK

i ——-that

 we can find for these spindle-shaped
wood cells.

There are four different processes at present
in the making of Artificial Silk :—

(x) Viscose.
(2) Cuprammonium.
(3) Nitrocellulose.
(4) Cellulose-Acetate.

The first is the most universal process,
but the last—acetate, is now being rapidly
developed.

Acetate silks are finer and better for hard
wear. They stand washing better. They
can be boiled in all kinds of detergent liquors.
When wetted, they lose only half their
strength, and are as strong as ever when dry.

They are the closest imitation of real silk.
They are superior in lustre, softness, warmth
of handle and non-creasability. They are
best for fabrics of the crepe-de-chine type.
They burn like real silk, leaving a cinder,
while viscose silks burn like cotton, leaving
only a fine white ash.

The moisture in acetate silks ranges from
Hho