Njengamanje kunezinhlobo ezimbili zokunamathiswa okungancibilikiyo kwezinhlanganisela zokupakisha eziguquguqukayo, izakhi ezingashadile nezikabili.Ingxenye eyodwa isetshenziselwa ikakhulukazi iphepha kanye nama-nonwovens, angasetshenziswa ngaphandle kokuxuba futhi ngaphandle kokulungisa isilinganiso.Izingxenye ezimbili zingasetshenziswa ezinhlobonhlobo zefilimu yokupakisha eguquguqukayo.Ngokusekelwe kokuhlangenwe nakho komuntu siqu, leli khasi lizochaza ukuthi ungashintsha kanjani isilinganiso sezingxenye ezimbili ngezinjongo ezihlukene nokuthi sisebenza kanjani.
Okokuqala, umgomo wesilinganiso sokuxuba wezibophezelo ze-laminated-free laminated wakhiwe.
Kunezici ezintathu ekwakhiweni kwesilinganiso sengxubevange sokunamathelisa okune-solvent-free laminating:
1. Zama ukufanisa isilinganiso sengxube yezingxenye A & B nesisindo.
I-A / B's compact blending ratio inenzuzo yokuba nesisindo esifanayo.Isibonelo, u-X ungu-100A oxutshwe no-90B, u-Y ungu-100A no-50B.Ushintsho olu-1% luka-B luzoholela ekushintsheni kwesisindo esingu-1.1% sengxenye engu-X kanye no-2% ka-Y. Ngokuvamile, ukuguqulwa okungu-2% esilinganisweni sokuxuba kuyamukeleka phakathi nenqubo yokukhiqiza, okuholela ekushintsheni kwesisindo esingu-2. 2 %no-4%.Uma isisindo sabo sihluka kakhulu, lokhu kungaholela ekudidekeni okulandelayo:
(1) Izingxenye ze-A / B kunzima ukuzixuba kahle ukuze ingxube ibe nomswakama ngendlela engavamile.
(2) Ngenxa yokungabikho kwengxenye B, ingcindezi ye-mixer iphansi kakhulu ukuze kuqinisekiswe ukugeleza okuvamile, okuholela ekuphambukeni kwezinto ezinamathelayo kanye nokuncipha kokukhiqizwa.
2. Ngokuseduze ngangokunokwenzeka ku-viscosity yezingxenye ze-A & B
Ukuncipha kwe-viscosity yengxenye A & B ezingeni lokushisa elifanele, kuba ngcono umphumela wokuhlanganisa.Uma ucabangela isenzo se-binder, i-viscosity yokuqala yazo zombili izingxenye ihluke kakhulu.Izinga lokushisa kufanele lilawulwe ngokwehlukana ukuze kulungiswe inani le-viscous.Ukwandisa izinga lokushisa lengxenye yokuqala nge-viscosity ephakeme kuyenza isondele kwenye ingxenye, futhi kunenzuzo kokubili idivayisi ye-mixer metering kanye nepompo yokuphumayo.
3. Ukwandisa ukubekezelela ingxube A & B
Ngenxa yezici ezithile zangaphandle ku-laminating, kufanele kube khona ukuphambuka ekuxubeni isilinganiso.Ukunweba ukubekezelelana kwesilinganiso senhlanganisela ye-A / B kunganxephezela ngempumelelo umphumela ongemuhle walokhu kuchezuka.Isibonelo, i-adhesive yamahhala ye-solvent yamahhala i-WD8118A / B yezinto ezintsha isukela ekuhlanganiseni okujwayelekile kwe-100: 75 kuya kungxube engu-100: 60 - 85, kokubili okwamukelekayo ekusetshenzisweni futhi yamukelwe kahle amakhasimende amaningi.
Okwesibili, isimiso kanye nendlela yokuxuba ukulungiswa kwesilinganiso
(1) Kulungiselwe izinga lokushisa lendawo kanye nomswakama
Ngokuvamile, okuqukethwe kwe-NCO engxenyeni A kuphezulu, kuyilapho ukusabela komoya kanye nomhwamuko kufilimu kungakwesokunxele.Kodwa-ke, phakathi nezinyanga zasehlobo, lapho kunomusi omningi emoyeni futhi ifilimu inomswakama ophezulu, ingxenye A kufanele inyuswe ukuze idle umusi oweqile, okuzokwenza kube lula ukusabela okufanele kwe-adhesive.
(2) Kulungiselwe okokusebenza kukayinki nezinsalela zencibilikisi
Ukupakishwa okuningi okuguquguqukayo kuyifilimu ephrintiwe, inqubo yokuphrinta yasekhaya inomshini wokuphrinta we-solvent gravure.Kumayinki asuselwa ku-solvent njengesengezo kuzoba ne-diluent kanye ne-retarder, zombili ziyi-polyurethane resin system, enamathelayo ene-NCO reaction ingadla i-NCO ethile.
Sikhathazekile ngobumsulwa kanye nomswakama we-solvent esele.Zizohlala ziningi noma zincane ekuphrintiwe, futhi i-hydrogen esele esebenzayo izodla i-NCO ethile.Uma izinsalela ezincanyana nezincishisiwe ziphakeme, singangeza ingxenye A ukuze sithuthukise imiphumela.
(3) Ilungiselwe ukudluliswa kwe-aluminium
Izinto eziningi zokupakisha eziguquguqukayo manje seziyi-aluminium, futhi umphumela wengcindezi ekunambeni ungancishiswa ngokulungisa isilinganiso sokuxuba sezingxenye ze-A / B ukuze zithambe, ngokuvamile kwandise ingxenye ye-B ngendlela efanele futhi kuncishiswe ukudluliswa kwe-aluminium kombuso ngokusebenzisa izinamathiselo eziphazamisayo. .
Isikhathi sokuthumela: Apr-22-2021