Chikwama chowonekera
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Kanthu
Matumba owoneka bwino amapangidwa ndi zida zoyera za polypropyylene popanda kuwonjezera masterbatch mwachindunji ndi ubweya wowoneka bwino, masamba omwe amagwiritsidwa ntchito pa mpunga. Tsopano zikwama zowoneka bwino chifukwa cha kusintha kosalekeza kwaukadaulo wokonzedweratu komanso kugwiritsa ntchito zowonjezera zatsopano komanso zowonjezera, kotero kuti zimawoneka bwino za thumba lopaka, lathyathyathya, lowala ndi mbali zina za kudulidwa.
Mwayi:
1, kugonjera kosagwirizana, kotsutsa-Tizilombo ndi zina
2, wolimba, wamphamvu kwambiri
3, kugwiritsa ntchito kwakukulu, moyo wautali
4, kulemera kwakukulu, mphamvu zazikulu (osawonjezera zofananira zosefera, ndikubwezeretsanso zinthu).
Kusamala chifukwa chogwiritsa ntchito matumba ophatikizika:
1, kugwiritsa ntchito matumba osoka matayala oyendera mayendedwe okwera, muyenera kuyang'ana matumba ovala matayala okutidwa ndi nsalu zina zokhala ndi chinyezi, kuti mupewe kuwala kwadzuwa kapena mvula yamatawa
2, matumba osoka kuti musalumikizidwe ndi asidi, mowa, mafuta ndi zinthu zina