Umahluko phakathi kwephepha lebhodi elimhlophe kunye nekhadibhodi emhlophe ibhokisi ye-pastry

Iphepha lebhodi elimhlophe luhlobo lwekhadibhodi elinomhlophe kunye nomphambili ogudileyo kunye nemvelaphi engwevu ngasemvaibhokisi yetshokolethi. Olu hlobo lwekhadibhodi lusetyenziswa ikakhulu kushicilelo olukwicala elinye lombala ukwenza iibhokisi zokupakishwa. Ubungakanani bephepha lebhodi emhlophe yi-787mm * 1092mm, okanye ezinye iinkcukacha okanye iphepha lokuqulunqa linokuveliswa ngokwekhontrakthi yomyalelo. Ngenxa yokuba ulwakhiwo lwefiber yephepha lebhodi emhlophe lufana ngokufanayo, umaleko womphezulu uneenxalenye zokuzalisa kunye nerabha, kwaye umphezulu uqatywe ngomlinganiselo othile wepeyinti, kwaye ucutshungulwe yi-calendering ye-multi-roller, ngoko ke ukuthungwa kwebhodi iqinile, kwaye ubukhulu bufana ngokufanayo. Zonke iimeko zimhlophe kwaye zigudileyo, kunye nokufunxwa kwe-inki efanayo, uthuli oluncinci kunye nokulahleka kweenwele phezu komhlaba, umgangatho wephepha oqinileyo kunye nokumelana nokusonga okungcono, kodwa umxholo wawo wamanzi uphezulu, ngokubanzi kwi-10%, kukho iqondo elithile lokuguquguquka, eya kuba nefuthe elithile kushicilelo. Umahluko phakathi kwephepha lebhodi elimhlophe kunye nephepha eliboshwe, i-offset paper, kunye nephepha le-letterpress kukuba iphepha linzima kwaye iphepha linzima.iphepha-isipho-ukupakishwa

Iphepha lebhodi emhlophe lenziwe ngepulp ephezulu kunye noluhlu ngalunye lwentlama esezantsi kumatshini wephepha onezinto ezininzi ezomisayo okanye umatshini webhodi oxube ovali. Ipulp yohlulwe ngokubanzi ibe yipulp yomhlaba (umaleko ongaphezulu), umaleko wesibini, umaleko wesithathu, kunye nowesine. Umlinganiselo wefiber womaleko ngamnye we-pulp yephepha uhlukile, kwaye umlinganiselo wefiber we-pulp nganye uxhomekeke kwinkqubo yokwenza iphepha. Umgangatho uyahluka. Uluhlu lokuqala luyi-pulp yomhlaba, efuna ubumhlophe obuphezulu kunye namandla athile. Ngesiqhelo, kusetyenziswa ipulp yeplanga yekraft egayitiweyo okanye ipulp yeekhemikhali ejikwe ngokuyinxenye kunye nephepha elimhlophe lenkunkuma yephepha liyasetyenziswa; umaleko wesibini ngumaleko we-lining, osebenza njengendawo yokuhlala yodwa Indima yomaleko ongundoqo kunye nenqanaba eliphambili lifuna iqondo elithile lobumhlophe, ngokuqhelekileyo kunye ne-100% ye-pulp yeplanga ye-mechanical okanye i-pulp yephepha elilaphu elikhanyayo; uluhlu lwesithathu luluhlu oluphambili, olusebenza ngokuyintloko njengokuzaliswa ukwandisa ubukhulu bekhadibhodi kunye nokuphucula ukuqina. Kusetyenziswa inkunkuma yephepha elixutyiweyo okanye i-straw pulp. Lo umaleko ngowona ungqingqwa, kwaye ikhadibhodi enobunzima obuphezulu isoloko isetyenziselwa ukuxhoma ipulp izihlandlo ezininzi kwiindawo zokubeka umnatha eziliqela; uluhlu olulandelayo luluhlu olusezantsi, olunemisebenzi yokuphucula ukubonakala kwekhadibhodi, ukwandisa amandla ayo, kunye nokuthintela ukugoba. I-pulp yesivuno esiphezulu okanye i-pulp engcono yenkunkuma yephepha isetyenziswa njengemathiriyeli ekrwada yokwenza iphepha. Umphantsi wekhadibhodi ubukhulu becala bungwevu, kwaye eminye imibala engezantsi nayo inokuveliswa ngokweemfuno.ibhokisi yobucwebe

Ikhadibhodi emhlophe isetyenziselwa ukuprinta amakhadi oshishino, iikhava, izatifikethi, izimemo kunye nokupakishwa. Ikhadibhodi emhlophe liphepha elisicaba, kunye nemilinganiselo yalo ephambili: 880mm * 1230mm, 787mm * 1032mm. Ngokomgangatho womgangatho, ikhadibhodi emhlophe ihlulwe ibe ngamabakala amathathu: a, B, kunye no-C. Ikhadibhodi emhlophe iyaqina kwaye iqina, inobunzima obukhulu besiseko, kwaye ubunzima bayo bunesiseko esineenkcukacha ezahlukeneyo ezifana ne-200 g / m2, 220. g/m2, 250 g/m2, 270 g/m2, 300 g/m2, 400 g/m2 njalo njalo. Ukuqina kwekhadibhodi emhlophe ngokuqhelekileyo kungabi ngaphantsi kwe-0.80 g / m3, kwaye iimfuno ezimhlophe ziphezulu. Ubumhlophe bamabakala a, B, no-C abukho ngaphantsi kwama-92.0%, 87.0%, kunye nama-82.0%, ngokulandelelanayo. Ukuze kuthintelwe ukuqubha, ikhadibhodi emhlophe ifuna iqondo elikhulu lokulinganisa, kwaye idigri ze-a, B, kunye no-C azikho ngaphantsi kwe-1.5mm, 1.5mm, kunye ne-1.0mm ngokulandelelanayo. Ukuze kugcinwe ukuguquguquka kweemveliso zephepha, ikhadibhodi emhlophe kufuneka ibe yincinci kwaye iqine, ibe nokuqina okuphezulu kunye nokugqabhuka kwamandla. Kukho iimfuno ezahlukeneyo zokuqina kwamakhadibhodi amhlophe amabakala ahlukeneyo kunye nobunzima. Okukhona ubunzima, kokukhona ibakala liphezulu, kwaye kokukhona ukuqina kokuqina. Ubukhulu bemfuno yokuqina, ukuqina kwe-longitudinal ngokubanzi akufuneki kube ngaphantsi kwe-2.10-10.6mN•m, kwaye ukuqina okunqamlezayo kufuneka kungabi ngaphantsi kwe-1.06-5.30 mN•m.ibhokisi yetshokolethi