Kule minyaka yangoku,abavelisi bephephakwaye abasebenzisi baye bahlawula ingqalelo ngakumbi nangakumbi kubuninzi bephepha, kuba ubuninzi bunempembelelo enkulu kwiindleko kunye nokusebenza kwemveliso.Ubuninzi obuphezulu buthetha ukuba ubukhulu obufanayo, ubunzima besiseko bunokuncitshiswa, kwaye umthamo wefiber osetyenzisiweyo unokuncitshiswa ukufezekisa ukonga iindleko;isambuku esikhulu sinokunyusa ukuqina kwephepha, ukuvumela abashicileli beencwadi ukuba bagcine ubukhulu bencwadi epheleleyo kunye namaphepha ambalwa, kwaye kunokonyusa ukucaca kwephepha, ukuprintwa, kunye nokunciphisa i-inki yokushicilela ukopha.Ngoko ke, ubuninzi obuphezulu bubaluleke kakhulu kulawulo lweendleko zephepha, ukusebenza kwemveliso kunye nexabiso elongezelelweyo leemveliso.
Yintoni isixa esikhulu?Esi sisilathisi esibalulekileyo sephepha, elingumlinganiselo wesiseko sobunzima bobunzima.Ubuninzi bubonisa ubuninzi bephepha, oko kukuthi, ubukhulu be-porosity yephepha.
Izinto eziphambili ezichaphazela ubuninzi bephepha ziquka i-papermaking fiber ekrwada, uhlobo lwe-pulp, ukubetha ukusebenza, iifayili, iikhemikhali, ukucinezela, ukomisa, i-calendering, njl.
I-fiber morphology ye-papermaking fiber ekrwada inefuthe elibalulekileyo kubuninzi bephepha.Iintsinga ezityebileyo zine-porosity ephezulu kunye nobuninzi bephepha eliphezulu, kodwa ubuninzi be-fiber ayihambelani kuphela nobukhulu befayibha, kodwa bunobudlelwane obubaluleke kakhulu kunye nokutyumzwa kweentsinga ngexesha lenkqubo yokwenza iphepha.Ekugqibeleni kuxhomekeke kwinqanaba lokutyumza kunye nokuguqulwa kweefayili.Ke ngoko, iifiber ezinobubanzi obuncinci kunye neendonga ezingqingqwa ziqinile, akulula ukutyunyuzwa, kwaye kulula ukwenza iphepha elininzi.
Uhlobo lwe-pulp lunempembelelo enkulu kubuninzi bephepha.Ukuthetha ngokubanzi, imveliso ephezulu yemveliso>i-pulp ye-thermomechanical> kraft pulp>inkunkuma.Iimathiriyeli ekrwada ezahlukeneyo zinezixa ezahlukeneyo kwipulp enye, iinkuni eziqinileyo > umthi othambileyo.Iisixa esikhuluyepulp yesivuno esiphezulu ngokwayo ayinakuthelekiswa nezinye iipulp, ngoko ke i-pulp ephezulu yesivuno isetyenziswa ngokubanzi ukubuyisela ngokuyinxenye i-bleached kraft hardwood pulp kwiphepha eliphezulu.Ukukhethwa kunye nomlinganiselo weentlobo ze-pulp zingundoqo kwinkqubo yokuvelisa amaphepha amaninzi aphezulu.Ukongeza i-pulp yesivuno esiphezulu ukuphucula isambuku sephepha ngoku yeyona ndlela isebenzayo esetyenziswa ngokubanzi ngabasila bephepha.
Ubuninzi buyipropati ebaluleke kakhulu yephepha.Ubuninzi obuphezuluiphepha linokugcina ukuqina okuyimfuneko, ukunciphisa ukusetyenziswa kwefayibha, ukonga iindleko zepulp, kunye nokuphucula isambuku.Ezona ndlela zinokwenzeka ngoku zibandakanya ukongeza i-pulp enesivuno esikhulu, ukukhetha i-pulp kunye neenkqubo zenkqubo.Ukuphucula kunye nophuhliso lwezongezo ezitsha ezininzi zikwangulwalathiso olubalulekileyo lophando.
Ixesha lokuposa: Oct-27-2022