ibhodi Duplex yenziwe ngepulp ephezulu kunye ne-pulp esezantsi. Ulwakhiwo lwalo ikakhulu lwahlulahlulwe kumgangatho osezantsi, umaleko ongundoqo, umaleko we-lining, umaleko womphezulu kunye nomgangatho wokugquma. Umbala womgangatho ophantsi wephepha lebhodi emhlophe ungwevu. Yenziwe kwiphephandaba lenkunkuma nge-deinking, ngoko ke ukubunjwa komgangatho ongezantsi kuxutywe kakhulu; umphezulu umhlophe, ngumphezulu obhityileyo ogqunywe ngekhemikhali ekrwada enje ngomgubo we kaolin kunye nokuncamathelisa. Umaleko womphezulu (umphezulu ogqunyiweyo) unobumhlophe obuphezulu, ukufunxwa kakuhle kwe-inki, ukuguda kunye neglosi yokushicilela, kunye nekhadibhodi ngokwayo inokuqina okuhle kunye nokumelana nokusonga. Emva kokuba umphezulu wephepha le-duplex ligqunywe, ukusebenza komphezulu kuphuculwe kakhulu. Iyakwazi ukuhlangabezana neemfuno zokuprintwa kombala ophezulu, ingaba yinto esemgangathweni ophezulu kwiibhokisi zokupakisha zempahla ephakathi kunye nephezulu.
Ibhodi yebhokisi yeFoling yikhadibhodi emhlophe engqindilili kwaye iqine ngakumbi. Yenziwe nge-100% ye-bleached kraft wood pulp kwaye iye yabethwa simahla. Yenziwe ngokongeza iifayili ezimhlophe ezifana ne-talc kunye ne-barium sulfate kumatshini wephepha le-Fourdrinier kwaye icutshungulwe nge-calendering okanye i-embossing.
Kusekho umahluko ocacileyo kwi-absorbency kunye noburhabaxa phakathi kwebhodi eyi-duplex kunye ne-FBB.FBB ine-absorbency ephezulu kunye noburhabaxa obusezantsi. I-absorbency ephezulu inokubangela ukuba kube lula ukufumana amachaphaza, ngelixa uburhabaxa obusezantsi bubangela ukuguqulwa komphezulu ongaphantsi kwephepha phantsi koxinzelelo lokuprinta, kwaye kufuna ifilimu ye-inki encinci, enceda ukunciphisa inzuzo yamachaphaza. Ngoko ke, ibhodi ye-duplex ingaphantsi kwe-FBB ngokubhekiselele kwi-tone reproducibility.
Iphepha eligudileyo, iglosi kunye ne-absorbency zizinto ezibalulekileyo. Umphezulu ogudileyo weFBB uphezulu. Xa i-inki ishicilelwe kwiphepha, i-capillary kwi-coating layer ithatha ngokulinganayo, nokuba isixa se-inki sincinci, inokuqinisekisa izinga eliphezulu lokudlulisa. Ngokusisiseko izinzile kwaye inokwenza ngokukhawuleza ifilimu ye-inki efanayo kunye neyomileyo. I-gloss yezinto eziprintiweyo zihle kakhulu, umbala ugqamile, kwaye iileyile zicebile. Iphepha linobushelelezi obuphezulu, imbonakalo eyomeleleyo ye-specular, iglosi elungileyo, kwaye xa ukukhanya kudlula kumaleko we-inki kwaye kubethe iphepha, uninzi lokukhanya luya kuphinda lungene ngaphaya koluhlu lwe-inki ngendlela yokubonakaliswa okukhethekileyo, kwaye lungene kwindawo yombukeli. amehlo. Kuphela le nxalenye yokukhanya inokubonakalisa iimpawu zombala we-inki. Ngakolunye uhlangothi, ibhodi ye-duplex inee-pores ezinkulu ezingaphezulu, indawo engalinganiyo, umthamo we-inki encinci, iphepha alikwazi ukuqhagamshelana ngokupheleleyo ne-inki yokushicilela, kwaye izinga lokudlulisa liphantsi; xa umthamo we-inki uphezulu, izinga lokudluliselwa liphezulu kakhulu, ukufunxa kuninzi, kwaye ininzi ye-binder kwi-inki ifunxwa liphepha, amasuntswana e-pigment awakhuselwanga ngokwaneleyo, i-inkino ayikhawulezi, kunye nombala. ibuthuntu.
Ixesha lokuposa: Sep-13-2022