Dyes and dyeingPellew, Charles E. (Charles Ernest), Viscount Exmouth
Science
Dyes and dyeing
Pellew, Charles E. (Charles Ernest), Viscount Exmouth
Dyes and dyeing
_Resist Stencil Paste._—This process of resist, ancient as it is, is
used in Japan to this day, and many, indeed most, of the stencilled
towels and piece goods that come from there are done in this way. It
has the advantages, especially for the craftsman, over the Direct
Color process, in that the color, being applied in a dye-bath, can be
fixed readily and uniformly, without the bother and uncertainty of a
steaming process. Through a friend, a well-known dyeing chemist, who
has travelled in Japan, I learned the composition of the Japanese
Resist Paste. They mix rice flour, wheat bran, and a little quicklime
(the calcium oxide of the chemist) with water and boil it to make
a paste. This they strain, and then they stir in some powdered
carbonate of lime (powdered chalk), which thickens and gives some
body to the mixture. The paste thus formed is applied, as a rule, not
with a brush but with a flat wooden instrument or spatula, with which
the paste is laid on as with a trowel, and further, to get the dead
white effects so commonly noticed, the paste is put on the back of
the cloth as well as on the front.
My friend also explained to me how the Japanese were able to get
irregular shaded effects with their stencil work, and at the same
time to furnish such beautiful and intricate hand-made work, at
such absurdly low prices. These goods are made of very thin porous
materials, and the dyer applies with his trowel the thick resist
paste, through the stencil, to one piece after another, laying each
one, as fast as it is stencilled, carefully on top of the previous
one, until a pile has been formed of ten or more separate pieces.
This pile is pressed very tightly together, and then the dyestuff,
as, for instance, Indigo in solution and thoroughly reduced, is
poured on to this mass of goods, soaking through from one to the
other, but always kept out of the white parts by the double coating
of thick paste.
After a few minutes these pieces are carefully taken off, one by one,
exposed to the air until oxidized, and then thoroughly washed until
the paste and loose color have all disappeared. For an example of
Japanese resist stencil work, dyed in an iron spring, see Plate III.
[Illustration: PLATE V. JAPANESE TOWELLING DYED BY IMMERSION IN IRON
SPRING. THE WHITE PATTERN IS CAUSED BY RESIST STENCILLING]
_Resist Stencilling with Sulphur Dyes._—Without lavishly copying
the Japanese practice it is possible to get very interesting results
by using suitable dyestuffs with a simpler paste.
Public-domain text, read in full here on John Shaqi.
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