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Converting Waste Agricultural Biomass into a Resource - UNEP

Converting Waste Agricultural Biomass into a Resource - UNEP

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2. Cooking the Fiber: A rope is laid in the bottom of a big pot of boiling<br />

lye--an alkali solution. The separated fiber is bundled and put in the<br />

solution and cooked for several hours with the lid on. The alkalinity of<br />

the lye is critical. After boiling, the fiber is washed to remove the alkali.<br />

3. Rolling up: Next the fiber must be paired from the skin. First the skin is<br />

separated lengthwise <strong>into</strong> two or three flat strips and separated with a<br />

bamboo tool. The soft fiber is used for the weft and the hard or colored<br />

fiber is used for the warp. Having dried the fiber in the shade it is rolled<br />

up.<br />

4. Yarn: A thread is now 'spun' from the fiber. First, the fiber is put in<br />

water and lightly squeezed. Next, it is separated by running the nails or<br />

tips of the fingers along between the fibers from the root upwards. The<br />

thickness of the thread depends on what is going to be woven. If it is<br />

for a kimono cloth then it is made very fine. The individual fibers are<br />

joined together to make a continuous thread, which is drawn to stop it<br />

separating. The ends of the thread where joined are cut short. This<br />

work is very time consuming and requires much patience.<br />

5. Twisting: In order to make the warp and weft ikat or kasuri threads<br />

more robust and to prevent napping, they are twisted up on a spinning<br />

wheel, while being moistened with a spray. If the twist is too loose the<br />

thread will nap and make weaving difficult. If, on the other hand, the<br />

thread is twisted too tightly it becomes difficult to beat and much more<br />

308

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