Mumakore achangopfuura,vagadziri vemapepa uye vashandisi vakabhadhara zvakanyanya uye zvakanyanya kutarisisa kuwanda kwebepa, nekuti iyo yakawanda ine mhedzisiro yakakosha pamutengo uye kushanda kwechigadzirwa. Kuwanda kwakawanda kunoreva kuti pakukora kwakafanana, huremu hunogona kudzikiswa, uye huwandu hwefiber hunoshandiswa hunogona kudzikiswa kuti uwane mari yekuchengetedza; kuwanda kwepamusoro kunogona kuwedzera kuoma kwepepa, zvichibvumira vatsikisi vebhuku kuchengetedza yakazara bhuku gobvu nemapeji mashoma, uye zvinogonawo kuwedzera kupenya kwebepa, kudhindwa, uye kuderedza kudhinda kweingi kubuda ropa. Naizvozvo, iyo yakakwira-yakawanda yakakosha kumutengo wekutonga kwepepa, kuita kwechigadzirwa uye kuwedzera kukosha kwezvigadzirwa.
Chii chinonzi high-bulk? Ichi chiratidzo chakakosha chebepa, inova reshiyo yehuremu hwehwaro kune ukobvu. Kuwanda kunoratidza kuwanda kwebepa, ndiko kuti, saizi yeporosity yepepa.
Zvinhu zvikuru zvinokanganisa kuwanda kwebepa zvinosanganisira mapepa ekugadzira faibha mbishi zvinhu, pulp rudzi, kurova mashandiro, mafirita, makemikari, kudzvanya, kuomesa, calendering, nezvimwe.
Iyo fiber morphology yepapermaking fiber raw material ine yakakosha pesvedzero pahuwandu hwebepa. Mafiibha akakora ane porosity yakakwira uye yakawanda yepepa, asi iyo yakawanda haina kungoenderana nefiber ukobvu, asi ine hukama hwakakosha kwazvo nekupwanya kwefiber panguva yekugadzira mapepa. Izvo pakupedzisira zvinoenderana nehuwandu hwekupwanya uye deformation yefibers. Naizvozvo, mafibisi ane dhayamita diki uye madziro akakora akaoma, haasi nyore kupwanywa, uye ari nyore kugadzira mapepa akawanda akawanda.
Mhando yepulp inewo simba guru pahuwandu hwepepa. Kazhinji kutaura, yakakwira-goho pulp> thermomechanical pulp> kraft pulp> tsvina pulp. Zvigadzirwa zvakasiyana-siyana zvine huwandu hwakasiyana mune imwechete pulp, hardwood> softwood. Thehukuru hwakawanda yemhando yepamusoro-yegoho pachayo haienzaniswi nemamwe mapundu, saka-yegoho repamusoro rinoshandiswa zvakanyanya kutsiva bleached kraft hardwood pulp mumapepa egiredhi repamusoro. Sarudzo uye reshiyo yemhando dzepulp ndiyo kiyi kune yazvino yakakwira yakawanda yakawanda kugadzira mapepa. Kuwedzera goho repamusoro kuvandudza huwandu hwemapepa pari zvino ndiyo nzira inoshanda zvakanyanya inoshandiswa zvakanyanya nemapepa.
Kuwanda chinhu chakakosha zvikuru chepepa.High-yakawanda bepa rinogona kuchengetedza kuoma kwakakosha, kuderedza kushandiswa kwefiber, kuchengetedza mari yepulp, uye kugadzirisa huwandu. Nzira dzinogoneka parizvino dzinosanganisira kuwedzera goho repamusoro-soro, sarudzo ye pulp uye masisitimu ekugadzirisa. Kugonesa uye kusimudzira kwezvitsva zvakawanda zvekuwedzera zvakare yakakosha nhungamiro yekutsvagisa.
Nguva yekutumira: Aug-01-2022