Pepa rinoshandiswa mukambani yedumabhokisi echingwa,pizza mabhokisinezvimwemabhokisi ekurongedza chikafuinogadzirwa nehunyanzvi hwekugadzira mapepa tekinoroji, ichipa muenzi wega wega zvigadzirwa zvemhando yepamusoro
Munguva yeWestern Han Dynasty (206 BC), China yaitove nekugadzira mapepa, uye mugore rekutanga reYuanxing (105) muMabvazuva Han Dynasty, Cai Lun akavandudza mapepa.Anoshandisa makwati, musoro wehemp, jira, mambure ekuredzesa uye zvimwe zvinhu kugadzira bepa kuburikidza nemaitiro ekutapa, kurova, kufinya, kubheka, nezvimwewo, ndiko kwakabva mapepa emazuva ano.Iri rudzi rwebepa, iyo mbishi iri nyore kuwana, yakachipa zvakanyanya, mhando yacho yave nani, uye zvishoma nezvishoma inoshandiswa zvakanyanya.Kurangarira kubudirira kwaCai Lun, zvizvarwa zvakatevera zvakadaidza bepa iri "Cai Hou bepa".
Pepa ndiyo crystallization yenguva refu ruzivo uye huchenjeri hwevanhu vanoshanda veChinese.Pepa shizha-rakafanana nefiber chigadzirwa chinoshandiswa kunyora, kudhinda, kupenda kana kurongedza.Kazhinji, inogadzirwa kubva pakumiswa kwemvura kwema pulped plant fibers, iyo inopindirana pamambure, inotanga kupera mvura, uye yozomanikidzwa nekuomeswa.China ndiyo nyika yekutanga pasi rose kugadzira mapepa.
Tekinoroji yemazuva ano iri kufambira mberi nekukurumidza, uye nzira yemazuva ano yekugadzira mapepa yakagadziridzwa.
Groundwood Pulp inoshandisa mechini yekukuya simba kuti iwane huni fiber, inozivikanwawo semakanika pulp, iyo inogona kupatsanurwa kuita general mejini pulp, yakanatswa mechani pulp, thermomechanical pulp, nezvimwe.
Kemikari pulp inoshandisa nzira dzemakemikari kuparadzanisa fiber kubva kune lignin kuti iwane huni huni, iyo inogona zvakare kukamurwa kuita pasoda pulp, sulfite pulp, uye sulfate pulp.
Semichemical pulp (Semichemical Pulp) Kubatanidza mechini uye makemikari kupuruzira nzira, inogona kukamurwazve kuita isina kwayakarerekera semi-kemikari pulp, inotonhora pasoda pulp, kemikari mechani pulp, nezvimwe.
Nguva yekutumira: Jun-30-2022