M'zaka zaposachedwa, opanga mapepala ndi ogwiritsa ntchito apereka chidwi kwambiri ndi kuchuluka kwa mapepala, chifukwa voliyumu imakhudza kwambiri mtengo ndi ntchito ya mankhwalawa.Kuchulukana kwakukulu kumatanthawuza kuti pa makulidwe omwewo, kulemera kwa maziko kumatha kuchepetsedwa ndipo kuchuluka kwa fiber zomwe zimagwiritsidwa ntchito zimatha kuchepetsedwa, kuti akwaniritse cholinga chopulumutsa ndalama;mphamvu yaikulu ikhoza kuonjezera kuuma kwa pepala, kulola osindikiza mabuku kusunga mabuku athunthu ndi masamba ochepa Kukhuthala kungathenso kuonjezera mawonekedwe a pepala, kusindikiza ndi kuchepetsa kutayikira kwa inki yosindikiza.Chifukwa chake, Takamatsu ndiyofunikira kwambiri pakuwongolera mtengo wa pepala, magwiridwe antchito ndi mtengo wowonjezera wazinthu.
Kodi mawu okwera kwambiri ndi chiyani?Ichi ndi ndondomeko yofunikira ya mapepala, ndiko kuti, chiŵerengero cha kulemera kwa maziko ndi makulidwe.Voliyumu imayimira kachulukidwe ka pepala, ndiko kuti, kukula kwa porosity ya pepala.
Zinthu zazikulu zomwe zimakhudza kuchuluka kwa pepala ndikuphatikiza ulusi wa pepala, mtundu wa zamkati, kumenya ntchito, zodzaza, mankhwala, kukanikiza, kuyanika, kalendala, etc.
Fiber morphology of the papermaking fiber raw material imakhudza kwambiri kuchuluka kwa pepala.Ulusi wokhuthala uli ndi porosity yapamwamba komanso kachulukidwe kakang'ono ka mapepala, koma kachulukidwe kachulukidwe sikungokhudzana ndi makulidwe a ulusi, komanso amakhala ndi ubale wofunikira kwambiri ndi kusweka kwa ulusi popanga mapepala.Zimatengera kuchuluka kwa ulusi wosweka ndi kupunduka.Chifukwa chake, ulusi wokhala ndi m'mimba mwake pang'ono komanso khoma lokhuthala ndi lolimba, siliphwanyidwa mosavuta, ndipo limapanga mapepala ochuluka kwambiri.
Mtundu wa zamkati umakhudzanso kwambiri kuchuluka kwa pepala.Nthawi zambiri, zokolola zambiri> zamkati za thermomechanical> kraft zamkati> zinyalala zamkati.Zopangira zosiyanasiyana zimakhala ndi voliyumu yosiyana mu zamkati zomwezo, hardwood> softwood.Kuchuluka kwa zamkati zokolola zambiri sikufanana ndi zamkati zina, kotero zamkati zokolola zambiri zimagwiritsidwa ntchito kwambiri m'malo mwa bleached kraft hardwood zamkati pamapepala apamwamba.Kusankhidwa ndi chiŵerengero cha mitundu ya zamkati ndizofunika kwambiri pa zamakono zamakono zamakono zopanga mapepala.Kuonjezera zokolola zambiri kuti mapepala azichulukirachulukira ndi njira yabwino kwambiri yogwiritsiridwa ntchito kwambiri ndi mphero zamapepala.
Voliyumu ndizofunikira kwambiri pamapepala.Mapepala ochulukirachulukira kwambiri amatha kukhala owuma koyenera, kuchepetsa kugwiritsa ntchito ulusi, kupulumutsa ndalama zamkati ndikuwongolera kachulukidwe kachulukidwe.Njira zothandiza kwambiri pakali pano zimaphatikizapo kuwonjezera zokolola zambiri, kusankha zamkati ndi machitidwe opangira.Kukhathamiritsa ndi chitukuko cha zowonjezera zatsopano zambiri ndizofunikiranso pakufufuza.
Nthawi yotumiza: Sep-14-2022