Uyinki wokudonsa ubhekisela enqubweni yokwenza i-laminating, lapho iglue idonsela phansi ungqimba lukayinki endaweni yokuphrinta ye-substrate yokunyathelisa, okwenza ukuthi uyinki unamathele kurola werabha ongaphezulu noma i-roller enezikhala. Umphumela uba umbhalo ongaphelele noma umbala, okuholela ekutheni umkhiqizo ulahlwe. Ngaphezu kwalokho, i-inki exhunywe ku-roller yeglue ephezulu idluliselwa kuphethini elandelayo, ibangele imfucuza. Ingxenye engenambala inamachashazi ayinki kanye nokwehla okukhulu kokubonakala obala, okuthinta ikhwalithi yomkhiqizo.
1.Ihlobene nenani leglue elisetshenzisiwe kanye nokugxila kokusebenza
Amathuba okuba inki yokudonsa yento eyodwa enamathelayo encibilikayo ingaphezulu kwalelo lezinto ezimbili ezinamathelayo,engahlukaniseki ohlotsheni olunamathelayo oluyinhloko kanye ne-diluent.
Ngenxa yenani elincane leglue elisetshenzisiwe, inani likayinki elihudulelwa phansi lisesimweni semicu ecolekile, njengamamaki abangelwa ama-meteor. Lawa machashazi amahle abonakala kakhulu endaweni engenalutho yefilimu yepulasitiki, futhi engxenyeni enephethini, ukubhekwa ngokucophelela kuyadingeka ukuze uwathole. Inani le-gluing lomshini we-scraper owomile we-laminating unqunywa inani lemigqa nokujula kwe-anilox roller. Ukucindezela okwedlulele ku-scraper ngesikhathi sokusebenza kwangempela kuzophinde kunciphise inani leglue elisetshenzisiwe. Uma inani leglue elisetshenzisiwe lincane, isenzakalo sokudonsa uyinki sinzima, kanti uma inani leglue elisetshenzisiwe likhulu, umkhuba wokudonsa uyinki uyancipha.
Ukugxila komsebenzi wesikole wasekhaya kuhlobene eduze nokwenzeka kokudonsa uyinki.Uma ukugxila kokunamathela kwengxenye eyodwa kungaphansi kwama-35%, okuqukethwe okuqinile kwe-adhesive eyinhloko kungaphansi kuka-3g/㎡, noma ukugxila kokunamathela kwezingxenye ezimbili ezisebenzayo kungaphansi kuka-20%, futhi okuqukethwe okuqinile kokunamathelayo okuyinhloko kungaphansi kuka-3.2g/㎡, kulula ukwenzeka into yokudweba uyinki, nayo ehlobene nenqubo yokusebenza yangempela. Uma ukugxila kokusebenza kuphansi futhi ukudonsa kukayinki kwenzeka, kuyadingeka ukwandisa ukugxila kokusebenza ukuze ukuxazulule, okusho ukuthi ukukhulisa inani le-ejenti eyinhloko noma ukunciphisa inani le-diluent esetshenzisiwe.Ngokuvamile, ukugxila kokusebenza kwengxenye eyodwa kulawulwa cishe ku-40%, futhi kungcono kakhulu ukulawula ukugxila kwezingxenye ezimbili cishe ku-25-30%, ukuze into yokudonsa uyinki ixazululwe.
2. Okuhlobene nokucindezela kwe-glue roller
Enkambweni ehlanganisiwe eyomile, i-gluing pressure roller ivame ukusetshenziswa, esetshenziselwayenza i-gluing coating more uniform futhi unciphise ukukhiqizwa kwama-bubbles. Uma ukudonsa kukayinki kwenzeka, ngaphezu kokucabangela inani leglue elisetshenzisiwe kanye nokugxila kokusebenza, kungukucindezela kwe-roller yerabha.
Ngokuvamile, lapho ingcindezi idlula i-4MPa, kunethuba lokudonsa uyinki. Isixazululo siwukunciphisa ukucindezela, futhi ngesikhathi esifanayo, umqhubi onekhono kufanele asebenzise indwangu ukuze anamathele i-diluent ukuze asule indawo ye-inki ye-anilox roller egijima. Uma kunzima kakhulu, i-roller ye-anilox kufanele imiswe ukuze ihlanzwe.
3. Okuhlobene nekhwalithi ye-glue roller
I-roller yerabhahhayi bushelelezi noma obucayi, futhi ingase ihudule uyinki, obonakala kalula engxenyeni eyodwa yokunamathela okuncibilika okushisayo.
Ngenxa yokungalingani kanye nokuba madladla kwe-resin, u-inki okhishiwe awuvamile futhi usakazwa ngokungalingani, okushiya izindawo eziyinki endaweni engenalutho, okuholela ekwehleni kokungafihli lutho, ukulahleka kukayinki kombala, nombhalo ongaphelele. Ukuze ushintshe lesi simo, kuyadingeka ukufaka esikhundleni se-gluing roller ebushelelezi futhi ebucayi.
4. Okuhlobene nesivinini somshini kanye nezinga lokushisa lokumisa
Ijubane lomshini libonisa ukuthi ukuxhumana phakathi kongqimba lukayinki nokunamathela kungqimba lwefilimu kuba noshintsho esikhathini sokumanzisa.
Ngokuvamile, ngenxa yesivinini somshini esinensayo, kunesenzakalo sokudonsa uyinki, esixazululwa ngokukhuphula isivinini nokunciphisa isikhathi sokuhlala phakathi kongqimba lweyinki kanye nesixhumi esibonakalayo sokunamathela. Ngokombono, uma ijubane lomshini likhuphuka, izinga lokushisa lokumisa kufanele likhuphuke ngokuqhathaniswa. Ngesikhathi esifanayo, uma isivinini somshini sikhuphuka ngesikhathi sokusebenza kwangempela, kufanele kubhekwe ukuthi akhona yini amanye amaphutha, njengokususwa kwezinto ezibonakalayo, kanye nokulungiswa okuhambisanayo okudingeka kwenziwe.
5. Okuhlobene nokunamathela kwe-substrate yokunyathelisa noma uyinki
Uma izinhlobo ezahlukene zikayinki zisetshenziselwa ukuphrinta i-gravure, ukuvela kwamaphutha kubonakala kalula ngesikhathi sokugcoba.
Uyinki ungahlukaniswa ngoyinki wokunyathelisa ongaphezulu kanye noyinki wokunyathelisa wangaphakathi. Ngenxa yezinhlobo ezahlukene zeyinki, ukunamathela kwabo kungase kuhluke noma kungahambisani, futhi ukunamathela okubuthakathaka kungabangela ukunamathela okubuthakathaka. Uma i-lamination eyomile isetshenziswa, kulula ukubangela ukudonsa kukayinki. Lapho ukungezwani okungaphezulu kwe-substrate yokuphrinta kukubi, kujwayele ukudonsa uyinki.
Isendlalelo sikayinki esidonswe phansi sibonakala sesisonke, futhi uyinki unamathela kumcengezi weglue, okubangela imfucumfucu nokungcola. Uma isivele iphrintiwe, ukuze ugweme imfucuza, isivinini somshini singandiswa, inani leglue linganyuswa, futhi ukugxila kweglue kungandiswa ngesikhathi esifanayo. Yehlisa ukucindezelwa kurola yerabha ngenkathi unciphisa ukushuba kwe-unwinding.
6. Okuhlobene nezici zemishini
Ngesikhathi sokusebenza, uma kwenzeka ukwehluleka komshini, okuholela ekuthinii-gluing engalingani noma ukunamathela okungalungile, kungase futhi kubangele ukudonsa kukayinki.
Ukuvumelanisa kwe-roller yerabha ephezulu kanye ne-anilox roller kuqedwa ngamagiya amabili ahambisanayo. Uma kukhona isenzakalo sokudonsa uyinki, kufanele kubhekwe ngokucophelela. Kuzotholakala ukuthi ukudonsa kweyinki kwenzeka ngenxa yokuzamazama kwe-roller engenhla yerabha kanye nokwembozwa okungalungile. Isizathu sokuthuthumela kungenxa yokuguga okukhulu namazinyo egiya asynchronous.
Uma unezidingo zokupakisha, ungaxhumana nathi. Njengomkhiqizi wokupakisha oguquguqukayo iminyaka engaphezu kwengu-20, sizokunikeza izixazululo ezifanele zokupakisha ngokuya ngezidingo zakho zomkhiqizo kanye nesabelomali.
Isikhathi sokuthumela: Oct-13-2023
