Kuchena kwemapfupa kunoreva huwandu hwe cellulose uye huwandu hwetsvina iri mu pulp. Pulp yakakodzera inofanira kunge yakapfuma mu cellulose, nepo huwandu hwe hemicellulose, lignin, ash, extractives nezvimwe zvinhu zvisiri zve cellulose hunofanira kunge hwakaderera sezvinobvira. Kuchena kwemasero eropa kunotarisa zvakananga kuchena uye kukosha kwekushandisa kwe pulp, uye chimwe chezviratidzo zvikuru zvekuongorora kunaka kwe pulp. Hunhu hwe pulp yakachena:
(1) kugara kwenguva refu, cellulose ndiyo chinhu chikuru chinoita kuti bepa rive rakasimba, pulp ine kuchena kwakanyanya zvinoreva kuti ine cellulose yakawanda, saka bepa rakagadzirwa rine simba rakasimba rekudzivirira kubvaruka, rekudzivirira kupeta uye mamwe maitiro emuviri neanoshanda, zvichiita kuti bepa rirambe rakasimba.
(2) Kubatana kwakasimba, fibers dzakachena dze cellulose dzinogona kuumba network yakabatana pakati pepepa kuti iwedzere kubatana kwemukati, kuitira kuti pepa risave nyore kupatsanurwa kana kuputswa kana richinge rashandiswa nesimba rekunze, kuti riwedzere simba repepa rose.
(3) kuchena kwakanyanya, kuvapo kwetsvina kunowanzo kukanganisa kuchena uye kupenya kwepepa. Kuchena kwakanyanya, nekuda kwekubvisa tsvina yakawanda ine mavara, kunoita kuti bepa riratidze kuchena kwakanyanya kwechisikigo, izvo zvinonyanya kukodzera kudhinda, kunyora uye kurongedza, nezvimwewo, uye zvinowedzera mhedzisiro yekuona kwechigadzirwa.
(4) kana paine hunhu huri nani hwekuputira magetsi, cellulose ine hunhu hwakanaka hwekuputira magetsi, nepo zvinhu zvisiri zve cellulose zviri mu pulp, zvakaita se lignin, zvinogona kunge zvine zvinhu zvinofambisa mhepo kana kuti zvinopisa, zvichikanganisa kuputira magetsi kwepepa. Saka, bepa rakagadzirwa ne pulp ine purity yakawanda rine mashandisirwo akasiyana-siyana muinjiniya yemagetsi, senge bepa rekudzivirira tambo, bepa re capacitor, nezvimwewo.
Kugadzira pulp yakachena kwazvo, indasitiri yemazuva ano yemapepa inoshandisa nzira dzakasiyana-siyana dzepamusoro dze pulping, dzakadai se chemical pulping (kusanganisira sulphate pulping, sulphite pulping, nezvimwewo), mechanical pulping (senge thermal grinding mechanical pulp TMP) uye chemical mechanical pulping (CMP) nezvimwewo. Maitiro aya anovandudza kuchena kwepulp nekubvisa kana kushandura zvinhu zvisiri zve cellulosic zvezvinhu zvakabikwa.
Pulp yakachena kwazvo inoshandiswa zvakanyanya muminda yakawanda yakadai sepepa remhando yepamusoro retsika, bepa rekurongedza, bepa rehunyanzvi (semuenzaniso, bepa remagetsi rinodzivirira kupisa, bepa rekusefa, bepa rekurapa, nezvimwewo) uye bepa repamba, iro rinosangana nemhando yepamusoro yepepa inodiwa nemaindasitiri akasiyana.
Yashi Paper inongogadzira 100% virgin bamboo pulp, single ci bamboo fiber, inova ndiyo sarudzo yakanakisisa yekuchenesa kwakanyanya uye bepa repamba remhando yepamusoro.
Nguva yekutumira: Gunyana-27-2024
