Malinga ndi kuya kwakuya kosiyanasiyana, zamkati zamapepala a nsungwi zitha kugawidwa m'magulu angapo, makamaka kuphatikiza Zamkati Zosasunthika, Semi-bleached Pulp, Bleached Pulp ndi Refined Pulp, ndi zina zotere.
1. Zamkati Zosatulutsidwa
Papepala la nsungwi losatukidwa, lomwe limadziwikanso kuti zamkati wosawukitsidwa, limatanthawuza zamkati zomwe zimapezedwa mwachindunji kuchokera ku nsungwi kapena zinthu zina zopangira ulusi wa mbewu pambuyo pochiza koyamba ndi mankhwala kapena njira zamakina, osapaka utoto. Mtundu uwu wa zamkati umasungabe mtundu wachilengedwe wa zopangira, nthawi zambiri kuyambira wachikasu wotumbululuka mpaka bulauni wakuda, ndipo uli ndi gawo lalikulu la lignin ndi zigawo zina zopanda cellulose. Mtengo wopangira zamkati wamtundu wachilengedwe ndi wochepa kwambiri, ndipo umagwiritsidwa ntchito kwambiri m'minda yomwe safuna pepala loyera kwambiri, monga mapepala odzaza, makatoni, mbali ya pepala la chikhalidwe ndi zina zotero. Ubwino wake ndikusunga mawonekedwe achilengedwe azinthu zopangira, zomwe zimathandizira kugwiritsa ntchito bwino zinthu.
2. Semi-bleached Zamkati
Semi-bleached bamboo paper Pulp ndi mtundu wa zamkati pakati pa zamkati zachilengedwe ndi zamkati zowulitsidwa. Imakhala ndi njira yoyeretsera pang'ono, koma kuchuluka kwa bulichi sikuli kofanana ndi kwa zamkati zowulitsidwa, kotero mtunduwo umakhala pakati pa mtundu wachilengedwe ndi woyera koyera, ndipo ungakhalebe ndi kamvekedwe kena kachikasu. Poyang'anira kuchuluka kwa bleach ndi nthawi ya bleach panthawi yopanga zamkati za semi-bleached, ndizotheka kutsimikizira kuyera kwina kwina pamene mukuchepetsa ndalama zopangira komanso kuwononga chilengedwe. Mtundu uwu wa zamkati ndi woyenera pa nthawi zomwe pali zofunikira zina za pepala zoyera koma osati zoyera kwambiri, monga mitundu ina ya mapepala olembera, mapepala osindikizira, ndi zina zotero.
3. Bleached Zamkati
Papepala la nsungwi lowuchitsidwa ndi zamkati zoyera, mtundu wake uli pafupi ndi cholozera choyera, choyera kwambiri. Njira yoyeretsera nthawi zambiri imagwiritsa ntchito njira zama mankhwala, monga kugwiritsa ntchito chlorine, hypochlorite, chlorine dioxide kapena hydrogen peroxide ndi zinthu zina zowulira, kuti achotse lignin ndi zinthu zina zamitundumitundu. Zamkati zotungidwa zimakhala ndi ukhondo wambiri wa ulusi, katundu wabwino komanso kukhazikika kwamankhwala, ndipo ndiye zida zazikulu zamapepala apamwamba azikhalidwe, mapepala apadera ndi mapepala apanyumba. Chifukwa cha kuyera kwake kwakukulu komanso magwiridwe antchito abwino kwambiri, zamkati zowulitsidwa zimakhala ndi gawo lofunikira pamakampani opanga mapepala.
4. Mapepala oyengedwa Zamkati
Refined Pulp nthawi zambiri amatanthauza zamkati zomwe zimapezedwa pamaziko a zamkati zowulitsidwa, zomwe zimathandizidwanso ndi njira zakuthupi kapena zamankhwala kuti zithandizire kuyeretsa komanso ulusi wa zamkati. Njirayi, yomwe ingaphatikizepo masitepe monga kugaya bwino, kuyesa ndi kuchapa, yapangidwa kuti ichotse ulusi wabwino, zonyansa ndi mankhwala osakwanira bwino kuchokera pazamkati ndikupanga ulusiwo kuti ukhale wobalalika komanso wofewa, potero kumapangitsa kusalala, gloss ndi mphamvu ya pepala. Zamkati zoyengedwa ndizoyenera kwambiri kupanga mapepala apamwamba owonjezera, monga mapepala osindikizira apamwamba kwambiri, mapepala a zojambulajambula, mapepala ophimbidwa, ndi zina zotero, zomwe zimakhala ndi zofunikira kwambiri pakupanga mapepala, kufanana ndi kusinthasintha kusindikiza.
Nthawi yotumiza: Sep-15-2024