Kodi zamkati ndi chiyani?

Zamkati ndi zinthu za ulusi zomwe zimachokera ku ulusi wa zomera pogwiritsa ntchito njira zosiyanasiyana.Zitha kugawidwa mu zamkati zamakina, zamkati zamakina ndi zamkati zamakina zamakina molingana ndi njira yopangira;imathanso kugawidwa kukhala zamkati zamatabwa, zamkati za udzu, zamkati za hemp, zamkati za bango, zamkati zanzimbe, zamkati zansungwi, zamkati zachiguduli ndi zina zotero malinga ndi zida za fiber zomwe zimagwiritsidwa ntchito.Ithanso kugawidwa mu zamkati woyengedwa, zamkati zowulitsidwa, zamkati zosasungunuka, zamkati zokolola zambiri, ndi zamkati zamakemikolo molingana ndi zoyeretsedwa zosiyanasiyana.Amagwiritsidwa ntchito popanga mapepala ndi makatoni.Zamkati zoyengedwa sizimagwiritsidwa ntchito popanga mapepala apadera, komanso zimagwiritsidwanso ntchito nthawi zambiri ngati zopangira zopangira ma cellulose monga esters cellulose ndi cellulose ethers.Amagwiritsidwanso ntchito mu ulusi wopangidwa ndi anthu, mapulasitiki, zokutira, mafilimu, mfuti ndi zina.

Traditional pulping imatanthawuza kupanga njira yolekanitsa ulusi wa zomera kukhala zamkati mwachilengedwe kapena bleached ndi mankhwala, njira zamakina kapena kuphatikiza njira ziwirizi.Njira yomwe imagwiritsidwa ntchito nthawi zambiri ndikupukuta, kuphika, kuchapa, kuyesa, kuyeretsa, kuyeretsa ndi kuyanika zida zopangira ulusi.Njira yatsopano ya biological pulping yapangidwa masiku ano.Choyamba, mabakiteriya apadera (kuwola koyera, zowola za bulauni, zowola zofewa) amagwiritsidwa ntchito kuti awononge mawonekedwe a lignin, ndiyeno njira zamakina kapena zamankhwala zimagwiritsidwa ntchito kulekanitsa cellulose yotsalayo., kenako n’kukhetsa magazi.Pochita izi, zamoyo zawonongeka ndikutsegula zambiri za lignin, ndipo njira yamankhwala imagwiritsidwa ntchito ngati ntchito yothandizira.Poyerekeza ndi njira yachikale, mankhwala omwe amagwiritsidwa ntchito ndi ochepa, kotero kuti madzi otayira ochepa kapena osataya amatha kutayidwa.Ndi njira yochepetsera chilengedwe., Oyera pulping njira.