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Paper Technology Journal 17 - Voith

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66<br />

Fig. 1: Boiling<br />

vessel: Kozo branches<br />

are steamed over<br />

boiling water to make<br />

the bark easier to<br />

remove.<br />

Fig. 2: Soaking the<br />

fibre strands in river<br />

water.<br />

Fig. 3: Dried fibres in<br />

front of a farmhouse.<br />

Fig. 4: Peasant<br />

women at work with<br />

a bamboo screen.<br />

<strong>17</strong>/04<br />

1<br />

2<br />

Making Washi involves a lot of time<br />

and effort – and is, as a consequence,<br />

very expensive. The best fibres are extracted<br />

from the inner bark of the mulberry<br />

tree (Japanese Kozo), Gampi plants<br />

and the Mitsumata bush. The branches<br />

are collected in the winter, after the<br />

leaves have fallen, and are then sawn into<br />

1 metre long sections and steamed above<br />

large vessels filled with boiling water.<br />

The bark is removed and soaked in water<br />

for one day, contaminants are separated<br />

off and the white fibres are dried. To<br />

make them soft, they are soaked in water<br />

again for many hours and later boiled<br />

with potash. After washing out the lye,<br />

the last dark pinholes are separated from<br />

the fibres – a task that is entrusted in<br />

Japan to female workers.<br />

The fibre strands are then spread out on<br />

a cherrywood board and beaten with a<br />

broad wooden stick. After another washing<br />

phase the purified fibres are stirred<br />

into water and sheets of paper are<br />

scooped out one by one with the aid of<br />

bamboo screens. Only the skilled craftsman<br />

has the knack of plunging the screen<br />

3

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