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VAZI
Cotton Wool: Lint Scoured, Bleached and Carded
Cotton wool is cotton fibre cleaned of seeds, scoured and bleached, so that it soaks up water. The natural wax and pectins on raw cotton, about a tenth of its weight, keep water out; scouring in caustic soda removes them. Bleach, rinse, dry and card the fibre into soft batts.
The picture: household cotton wool, not sterilised.
Mwanzo
Two days, mostly drying
Maagizo
1
1
Pick it clean
Pick it clean
Spread the lint on the table and pick out seeds, leaf and other bits. Weigh it dry.
Vifaa kwa hatua hii:
Pamba isiyo na mbegu500 gZana zinazohitajika:
Meza ya kupanga2
2
Scour
Scour
Dilute the caustic soda solution about one part to twenty of water in the pot, add the cotton and keep it just under the boil for about an hour, pressing it under now and then. Wear gloves.
Vifaa kwa hatua hii:
Maji10 litaZana zinazohitajika:
Hidroksidi ya sodiamu, myeyusho wa asilimia 10
Sufuria Kubwa
Kipimajoto
Kasia refu la mbao la kukoroga
Glavu za mpira3
3
Rinse
Rinse
Lift the cotton out and rinse it in fresh water several times until the water no longer feels slippery.
Vifaa kwa hatua hii:
Maji20 litaZana zinazohitajika:
NdooGlavu za mpira4
4
Bleach
Bleach
Soak it in cold water with a little hypochlorite solution until white, then rinse it well again.
Vifaa kwa hatua hii:
Maji20 litaZana zinazohitajika:
Mmumunyo wa hipokloriti ya sodiamuNdooGlavu za mpira5
5
Dry
Dry
Squeeze out the water, open the cotton up and dry it on the rack.
Zana zinazohitajika:
Kichanja cha Kukaushia6
6
Card
Card
Card small handfuls between the hand carders and roll them off as light batts. Weigh the result.
Zana zinazohitajika:
Michanuo ya mkono7
7
Weight lost
Weight lost
Inapakia daftari la Jupyter…
Zana Zinazohitajika
10- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
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Blueprint zinazohusiana
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CC0 Umma Wote
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