Ikhadibhodi elimhlophe lephakethe likagwayi lidinga ukuqina okuphezulu, ukumelana nokuphuka, ukushelela kanye nobumhlophe. Ubuso bephepha buyadingeka ukuthi bube yisicaba, kungavunyelwe ukuba nemivimbo, amabala, amaqhubu, ukugoba kanye nokuguqulwa kwesizukulwane. Njengephakheji likagwayi elinekhadibhodi elimhlophe. Ukusetshenziswa okuyinhloko komshini wokunyathelisa we-gravure wewebhu osheshayo ukuphrinta, ngakho-ke izidingo zenkomba yokuqina kwekhadibhodi elimhlophe ziphakeme. Amandla okuqina, aziwa nangokuthi amandla okuqina noma amandla okuqina, ahloselwe ukuba ukucindezeleka okuphezulu iphepha elingakubekezelela ngesikhathi sokuphuka, okuvezwa ku-kN/m. Umshini wokunyathelisa we-gravure wejubane eliphezulu ukuhudula imiqulu yephepha, ukunyathelisa kwejubane eliphezulu ukumelana nokucindezeleka okukhulu, uma isimo sokuphuka kwephepha njalo, kuzobangela ukumiswa njalo, kunciphisa ukusebenza kahle komsebenzi, kodwa futhi kwandise ukulahleka kwephepha.
Kunezinhlobo ezimbili ze-ikhadibhodi elimhlophe lamaphakethe kagwayi, enye yi-FBB (ikhadibhodi elimhlophe eliphuzi) kanti enye yi-SBS (ikhadibhodi elimhlophe elimhlophe), zombili i-FBB kanye ne-SBS zingasetshenziselwa amaphakethe kagwayi ziyikhadibhodi elimhlophe elimbozwe uhlangothi olulodwa.
I-FBB inezingqimba ezintathu ze-pulp, izingqimba eziphezulu nezingezansi zisebenzisa i-pulp ye-sulfate wood, kanti ungqimba oluyinhloko lusebenzisa i-pulp ye-chemical wood egayiwe ngomshini. Uhlangothi olungaphambili (uhlangothi lokuphrinta) lumbozwe ngengqimba yokumboza esetshenziswa kusetshenziswa ama-squeegees amabili noma amathathu, kanti uhlangothi olungemuva alunangqimba yokumboza. Njengoba ungqimba oluphakathi lusebenzisa i-pulp ye-chemical wood egayiwe ngomshini, enenzuzo enkulu yokhuni (85% kuya ku-90%), izindleko zokukhiqiza ziphansi kakhulu, ngakho-ke intengo yokuthengisa yalokho okuphumayoIkhadibhodi le-FBBiphansi kakhulu. Le pulp inemicu emide kakhulu kanye nemicu emincane kanye nezinqwaba ze-fiber, okuholela ekujiyeni okuhle kwephepha eliqediwe, ukuze i-FBB yegrammage efanayo ibe nkulu kakhulu kune-SBS, evame ukuba nezingqimba ezintathu zepulp, enepulp yokhuni olu-bleached sulphur esetshenziselwa izendlalelo zobuso, umongo, kanye nomongo. Ingaphambili ((uhlangothi lokuphrinta)) limboziwe, futhi njenge-FBB limbozwe ngama-squeegees amabili noma amathathu, kanti uhlangothi olungemuva alunawo ungqimba lokumboza. Njengoba ungqimba oluyinhloko lusebenzisa nepulp yokhuni olu-bleached sulfate, lunobumhlophe obuphezulu ngakho-ke lubizwa ngokuthi ikhadi elimhlophe elinomongo omhlophe. Ngesikhathi esifanayo, imicu ye-pulp ilungile, iphepha liqinile, kanti i-SBS incane kakhulu kunobukhulu be-FBB yegrammage efanayo.
Ikhadi likagwayi, nomaikhadibhodi elimhlophekogwayi, iyikhadibhodi elimhlophe elimbozwe ngekhwalithi ephezulu elisetshenziselwa ukwenza izinto zokupakisha ugwayi. Leli phepha elikhethekile liyacutshungulwa futhi lenziwe kahle ngenqubo enzima, futhi umsebenzi walo oyinhloko ukunikeza ugwayi iphakheji yangaphandle ekhangayo, ehlanzekile nevikelayo. Njengengxenye ebalulekile yemikhiqizo kagwayi, ikhadi likagwayi aligcini nje ngokuhlangabezana nezidingo eziyisisekelo zokupakisha umkhiqizo, kodwa futhi libonisa ukubonakaliswa okuhle kobunikazi bomkhiqizo ngenxa yokuphathwa kwalo okukhethekile kwendawo kanye nokufaneleka kokuphrinta.
Izici
1. Izinto kanye nobuningi.
Ikhadi likagwayi linomthamo ophezulu, ngokuvamile ongaphezu kuka-200g/m2, okuqinisekisa ukujiya namandla anele okusekela nokuvikela ugwayi ongaphakathi.
Isakhiwo sayo sefayibha sifana futhi siminyene, senziwe nge-pulp yokhuni esezingeni eliphezulu, futhi sinezela inani elifanele lama-filler kanye nama-adhesive ukuqinisekisa ukuthi iphepha liqinile futhi lisebenza kahle ekucubunguleni.
2. Ukumboza kanye nokufaka ikhalenda.
Inqubo yokufaka ikhalenda yenza ubuso bube bushelelezi futhi bube bushelelezi, ithuthukisa ukuqina nokucwebezela kwephepha, futhi yenza ukubonakala kwamaphakethe kagwayi kube sezingeni eliphezulu.
3. Izakhiwo ze-physicochemical.
Ikhadi likagwayi linokumelana okuhle kakhulu nokugoba nokuklebhuka, okuqinisekisa ukuthi akukho ukuphuka enkambisweni yokupakisha ezenzakalelayo esheshayo. Linezici ezinhle zokumunca nokomisa i-inki, okuyinto enhle ekuphrinteni okusheshayo nasekuvimbeleni ukungena kwe-inki.
Ihlangabezana nezidingo zemithethonqubo yokuphepha kokudla, ayinaphunga futhi ayinazo izinto eziyingozi emzimbeni womuntu, okuvikela ukuphepha kwabathengi.
4. Ukuvikelwa kwemvelo kanye nokulwa nokukhwabanisa.
Njengoba ulwazi ngokuvikelwa kwemvelo lukhula, ukukhiqizwa kwamakhadi kagwayi esimanje kuvame ukusebenzisa izinsiza ezivuselelekayo futhi kunciphisa ukungcoliswa kwemvelo.
Eminye imikhiqizo yamakhadi kagwayi asezingeni eliphezulu iphinde ihlanganise ubuchwepheshe bokulwa nokukhwabanisa, njengezembozo ezikhethekile, imicu enemibala, amaphethini e-laser, njll., ukuze kubhekane nenkinga enkulu yokukhwabanisa.
Izicelo
Ukupakishwa kwebhokisi eliqinile: Kusetshenziswa ekwakhiweni kwezinhlobo ezahlukene zamabhokisi kagwayi aqinile, ungqimba lwangaphakathi lungaphinde lufakwe i-aluminium foil nezinye izinto ukuze kwandiswe izakhiwo zokuvimba. Amaphakethe athambile: Nakuba engavamile, amakhadi kagwayi nawo asetshenziswa njengezinto zokuvala noma zokuvala kwamanye amaphakethe kagwayi athambile.
Ukukhangisa: Ngokuphrinta kwekhwalithi ephezulu kanye nomklamo oyingqayizivele, amakhadi kagwayi asiza izinkampani zikagwayi ukuthi ziveze isithombe somkhiqizo wazo futhi zithuthukise ukuncintisana emakethe.
Izidingo zomthetho nezokulawula: Njengoba imithethonqubo eqinile yokupakisha ugwayi emazweni ahlukahlukene iqhubeka nokuba nzima, amakhadi kagwayi nawo kudingeka ahambisane nemfuneko yokuthi izixwayiso zezempilo zibonakale kahle futhi kube nzima ukuzishintsha.
Isikhathi sokuthunyelwe: Julayi-22-2024