Sezvo kunetseka nezvenyaya dzezvakatipoteredza kuri kuramba kuchikura, vanhu vazhinji vari kuwedzera kuziva nezvezvinhu zvavanoshandisa muhupenyu hwavo hwezuva nezuva. Chimwe chezvinhu zvikuru ndechezvigadzirwa zvemapepa epamba, zvakaita sematishu ekumeso, manapukeni, tauro rekicheni, matishu echimbuzi uye tauro remaoko, nezvimwewo.
Kune zvinhu zviviri zvikuru zvinoshandiswa kugadzira zvigadzirwa izvi: virgin wood pulp uye recycled pulp. Vanhu vazhinji vanoda kuziva kuti ndeipi sarudzo iri nani. Muchinyorwa chino, tinoongorora zvakanakira kushandisa virgin wood pulp uye tinoongorora mafambiro ekushandiswa kwayo parunyorwa rwevabereki
Kutanga, ngatienzanisei pulp yemuti wakagadzirwa nemuti wakagadzirwa nematanda akagadziriswazve. Pulp yemuti wakagadzirwa nematanda chaiwo, nepo pulp yakagadziriswazve inogadzirwa nepepa rakashandiswa rinozogadziriswa kuita pulp. Pulp yakagadziriswazve inowanzoonekwa sesarudzo isingakuvadzi nharaunda nekuti inochengetedza kushandiswa kwemiti uye inoderedza marara. Zvisinei, pane misiyano mikuru pakati pezvinhu zviviri izvi. Mumwe musiyano mukuru ndewekushandisa pulp yemuti wakagadzirwa nematanda kuti ugadzire bepa repamba rinogona kunge riri remhando yepamusoro yechigadzirwa chekupedzisira. Pulp yemuti wakagadzirwa nematanda wakareba uye wakasimba, saka bepa rinogadzirwa rakapfava, rinonyudza uye rakasimba kupfuura bepa rakagadzirwa nemapuranga akagadziriswazve. Musiyano uyu unonyanya kuonekwa muzvigadzirwa zvakaita sepepa rechimbuzi, uko kupfava nesimba zviri zvinhu zvakakosha kufunga nezvazvo. Imwe mukana wekushandisa pulp yemuti wakagadzirwa nematanda ndeyekuti ine hutsanana. Maitiro ekugadzirisazve anoshandiswa kugadzira pulp yakagadziriswazve anogona kusiya tsvina yasara uye zviratidzo zveinki nemakemikari. Izvi zvinoita kuti pulp yakagadziriswazve isakodzere kushandiswa muzvigadzirwa zvakaita senyama yechiso kana tishu yechimbuzi munzvimbo dzinonzwa dzemuviri. Saka maitiro aripo ndeekushandisa pulp yemuti wakagadzirwa nematanda sezvinhu zvekushandisamama rollszvaishandiswa pakushandura mapepa epamba. Sekureva kwemakambani, kushandiswa kwepepa remhando ye virgin pulp kwakawedzera mumakore achangopfuura. Kunyange hazvo kudiwa kwepepa rekushandisa zvakare kuri kudzikira. Iye zvino muChina, chigayo chepepa rekushandisa zvakare chave kuderera, chichatsiviwa nepepa remhando ye virgin wood pulp zvishoma nezvishoma.
Nguva yekutumira: Chikumi-14-2023