Ikhadibhodi elimhlophe lephakethe likagwayi lidinga ukuqina okuphezulu, ukumelana nokuqhekeka, ubushelelezi kanye nobumhlophe. Ingaphezulu lephepha liyadingeka ukuthi libe yisicaba, lingavunyelwe ukuthi libe nemithende, amabala, amaqhubu, i-warping kanye nokuguqulwa kwesizukulwane. Njengephakeji likagwayi elinamakhadibhodi amhlophe. Ukusetshenziswa okuyinhloko komshini wokuphrinta we-web we-high-speed gravure ukuphrinta, ngakho-ke izidingo zenkomba yokucindezeleka kwamakhadibhodi amhlophe ziphezulu. Amandla e-tensile, aziwa nangokuthi amandla e-tensile noma amandla okuqina, ahloswe ukuthi kube ukungezwani okuphezulu iphepha elingakwazi ukumelana nazo ngesikhathi sokuphuka, kuvezwe ngo-kN/m. High-speed umshini wokunyathelisa gravure ukuhudula imiqulu iphepha, ukunyathelisa ngesivinini ukumelana ukungezwani okukhulu, uma lo mkhuba iphepha njalo amakhefu, nakanjani kubangele ukumiswa njalo, ukunciphisa ukusebenza kahle, kodwa futhi andise ukulahlekelwa iphepha.
Kunezinhlobo ezimbili zeikhadibhodi elimhlophe lamaphakethe kagwayi, enye i-FBB (ikhadibhodi elimhlophe eliwumgogodla ophuzi) kanti enye i-SBS (ikhadibhodi elimhlophe eliwumgogodla omhlophe), womabili i-FBB ne-SBS angasetshenziselwa amaphakethe kagwayi angamakhadibhodi amhlophe anohlangothi olulodwa.
I-FBB iqukethe izingqimba ezintathu ze-pulp, izendlalelo ezingaphezulu nezingaphansi zisebenzisa i-sulfate wood pulp, kanti ungqimba oluyisisekelo lisebenzisa ikhemikhali ukhuni olugaywe ngomshini. Uhlangothi lwangaphambili (uhlangothi lokuphrinta) lumbozwe ngesendlalelo sokumboza esisetshenziswa kusetshenziswa ama-squeegee amabili noma amathathu, kuyilapho uhlangothi olungemuva lungenalo ungqimba lokugqoka. Njengoba ungqimba oluphakathi lusebenzisa ukhuni olugayiwe ngamakhemikhali nangemishini, olunesivuno esikhulu sokhuni (85% kuya ku-90%), izindleko zokukhiqiza ziphansi kakhulu, ngakho-ke intengo yokuthengisaIkhadibhodi le-FBBiphansi uma kuqhathaniswa. Le pulp inemicu emide kakhulu kanye nemicu emincane emincane emincane kanye nenqwaba yefiber, okuholela ekushubeni okuhle kwephepha eliqediwe, ukuze i-FBB yohlelo lolimi olufanayo ibe nkulu kakhulu kune-SBS, evame ukuba nezigaba ezintathu ze-pulp, nesibabule- i-bleached wood pulp esetshenziselwa izendlalelo zobuso, umgogodla, nangemuva. Ingaphambili ((uhlangothi lokuphrinta)) limboziwe, futhi njenge-FBB iphinde ifakwe ama-squeegee amabili noma amathathu, kuyilapho uhlangothi olungemuva lungenalo isendlalelo sokumboza. Njengoba ungqimba oluyisisekelo luphinde lusebenzise i-bleached sulfate wood pulp, lunobumhlophe obuphakeme ngakho-ke lubizwa ngokuthi ikhadi elimhlophe eliyinhloko elimhlophe. Ngesikhathi esifanayo, imicu ye-pulp ilungile, iphepha liqinile, futhi i-SBS incane kakhulu kunobukhulu be-FBB yohlelo lolimi olufanayo.
Ikhadi likagwayi, nomaamakhadibhodi amhlopheosikilidi, iyikhadibhodi elimhlophe elimbozwe ngekhwalithi ephezulu elisetshenziselwa ngokukhethekile ukwenza izinto zokupakisha zikagwayi. Leli phepha elikhethekile liyacutshungulwa futhi lenziwe kahle ngenqubo eqinile, futhi umsebenzi walo oyinhloko ukuhlinzeka ngogwayi ngephakheji yangaphandle ekhangayo, ehlanzekile futhi evikelayo. Njengengxenye ebalulekile yemikhiqizo kagwayi, ikhadi likagwayi alifinyeleli nje kuphela izidingo eziyisisekelo zokupakishwa komkhiqizo, kodwa futhi libona ukuvezwa okuhle kobunikazi bomkhiqizo ngenxa yokuphathwa kwayo okukhethekile kwendawo kanye nokufaneleka kokuphrinta.
Izici
1. Izinto kanye nenani.
Ikhadi likagwayi linesilinganiso esiphezulu, ngokuvamile esingaphezu kuka-200g/m2, esiqinisekisa ukushuba okwanele namandla okusekela nokuvikela ugwayi ongaphakathi.
Isakhiwo sayo se-fiber siyafana futhi siminyene, senziwe nge-pulp yokhuni yekhwalithi ephezulu, futhi yengeza inani elifanele lama-fillers nama-adhesives ukuqinisekisa ukuthi iphepha liqinile futhi linokusebenza okuhle kokucubungula.
2. Ukugqoka kanye ne-calendering.
Inqubo ye-calendering yenza indawo engaphezulu isicaba futhi ishelele, ithuthukisa ukuqina nokucwebezela kwephepha, futhi yenza ukubukeka kwamaphakethe kagwayi kube sezingeni eliphezulu kakhulu.
3. Izakhiwo ze-Physicochemical.
Ikhadi likagwayi linokumelana okuhle kakhulu nokugoqeka nokuklebhuka, liqinisekisa ukuthi akukho ukwephulwa kwenqubo yokupakisha ezenzakalelayo enesivinini esikhulu. Inezici ezinhle zokumunca nezomisa uyinki, evumela ukuphrinta ngokushesha futhi ivimbele ukungena kukayinki.
Ihlangabezana nezidingo zemithetho yokuphepha kokudla, ayinayo iphunga futhi ayiqukethe izinto eziyingozi emzimbeni womuntu, okuvikela ukuphepha kwabathengi.
4. Ukuvikelwa kwemvelo kanye nokulwa nomgunyathi.
Ngokuqwashisa okwandayo kokuvikelwa kwemvelo, ukukhiqizwa kwamakhadi kagwayi wesimanje kuvame ukusebenzisa izinsiza ezivuselelekayo nokunciphisa ukungcoliswa kwemvelo.
Eminye imikhiqizo yamakhadi kagwayi asezingeni eliphezulu ihlanganisa nobuchwepheshe bokulwa nokuzenzisa, njengezingubo ezikhethekile, imicu enemibala, amaphethini e-laser, njll., ukuze kubhekwane nenkinga eyandayo yokwenziwa komgunyathi.
Izinhlelo zokusebenza
Ukupakishwa kwebhokisi eliqinile: Kusetshenziswa ekwenzeni izinhlobo ezahlukene zamabhokisi kagwayi aqinile, ungqimba lwangaphakathi lungase futhi lufakwe i-aluminium foil nezinye izinto zokwandisa izakhiwo zokuvimbela. Amaphekhi athambile: Nakuba eyivelakancane, amakhadi kagwayi abuye asetshenziswe njengamalayini noma ukuvala kwamanye amaphakethe athambile kagwayi.
Ukumaketha:Ngokuphrinta kwekhwalithi ephezulu kanye nomklamo oyingqayizivele, amakhadi kagwayi asiza izinkampani zikagwayi ukwethula isithombe sazo futhi zithuthukise ukuncintisana kwemakethe.
Izimfuneko ezingokomthetho neziqondisayo: Njengoba kunemithetho eqinile eqinile yokupakishwa kukagwayi emazweni ahlukahlukene, amakhadi kagwayi nawo adinga ukuthobela imfuneko yokuthi izexwayiso zezempilo zibonakale ngokucacile futhi okunzima ukuziphazamisa.
Isikhathi sokuthumela: Jul-22-2024