Laminating zaj duab xisyog siv dav hauv kev lag luam luam ntawv thiab ntim khoom los tiv thaiv cov ntawv thiab cov ntaub ntawv luam tawm. Txawm li cas los xij, ntau tus neeg siv khoom pom tias laminating zaj duab xis yog qhov ua rau wrinkling, ntug curling, thiab curling nyob rau hauv qhov kub thiab txias.
Raws li cov kws tshaj lij laminating zaj duab xis chaw tsim khoom, YIDU, nrog 32 xyoo ntawm kev tsim khoom, tshuaj xyuas qhov ua rau wrinkling ntawm qhov kub thiab txias thiab muab kev daws teeb meem.
1. Qhov tseem ceeb ntawm Wrinkling nyob rau hauv laminating zaj duab xis thaum kub kub
Tsis sib xws Thermal Shrinkage
Feem ntau cov laminating films yog tsim los ntawm PET puag zaj duab xis, uas undergoes me ntsis thermal shrinkage thaum rhuab.
Yog tias qhov kub - nias qhov kub los yog ceev tsis sib xws, cov zaj duab xis txheej yuav ntsws sai dua nyob rau hauv qee qhov chaw dua li lwm tus, tsim wrinkles.
Kev kub siab heev
Yog hais tias lub tshuab laminating kub siab tshaj cov khoom siv zaj duab xis lub tshav kub tsis kam, nws yuav ua rau cov zaj duab xis nto soften los yog txawm nyob hauv zos yaj.
Kev nthuav dav tsis sib xws ntawm cov khoom siv zaj duab xis ntawm qhov kub siab tau yooj yim ua rau wrinkling thiab ntug curling.
Uneven Pressure Distribution:
Cov menyuam tsis sib xws thaum lub sijhawm kub nias tuaj yeem ua rau muaj kev ntxhov siab tsis sib haum ntawm cov khoom siv zaj duab xis, ua rau muaj wrinkles.
Qhov no yog qhov tshwj xeeb tshaj yog thaum laminating cov nplooj ntawv loj lossis thaum daim ntawv tuab tsis sib xws, vim tias qhov chaw siab dhau yog qhov teeb meem tsis tu ncua.
Substrate Moisture Absorption lossis Expansion:
Daim ntawv, duab los qhia, lossis cov ntaub ntawv luam tawm nthuav dav thaum damp, thiab cov zaj duab xis laminating, tsis muaj kev nruj txaus ntawm qhov kub thiab txias, yuav nthuav dav thiab cog lus nrog cov substrate, tsim wrinkles.
Qhov no tshwj xeeb tshaj yog tshwm sim nyob rau hauv ib puag ncig nrog cov av noo siab lossis tseem ceeb hloov raws caij nyoog.
Zaj duab xis Thickness lossis Cov Teeb Meem Zoo:
Cov yeeb yaj kiab ua tau yooj yim dua ntawm qhov kub thiab txias, ua rau nws yooj yim rau thermal wrinkling.
Cov thermal expansion coefficients tsis sib xws ntawm cov khaubncaws sab nraud povtseg ntawm qis- cov yeeb yaj kiab zoo lossis cov yeeb yaj kiab sib xyaw tuaj yeem ua rau wrinkling ntau dua.
2. Cov txheej txheem siv tau los daws cov teeb meem siab -Tsuas Kub Wrinkling
High - kub wrinkling yog ib qho teeb meem uas tshwm sim thaum siv cov laminating zaj duab xis. Los ntawm kev kho cov txheej txheem kev ua haujlwm, xaiv cov khoom tsim nyog, thiab ua kom zoo dua cov txheej txheem substrate, tus nqi wrinkling tuaj yeem txo qis. Cov hauv qab no yog cov lus qhia ntxaws txog kev ua haujlwm:
2.1 Tswj Kub-Qhov kub thiab txias
Kho qhov kub thiab txias raws li qhov kub tsis kam ntawm cov khoom siv zaj duab xis.
BOPP zaj duab xis feem ntau muaj qhov kub thiab txias ntawm 100-130 degree, thaum PET zaj duab xis muaj qhov kub thiab txias ntawm 110-150 degree.
Cov kub kub ntau dhau -qhov kub hnyiab tuaj yeem ua rau cov yeeb yaj kiab muag muag lossis qee feem yaj, tsim wrinkles; Qhov kub tsis txaus yuav ua rau qaug zog adhesion thiab bubbling.
Temperature Uniformity
Lub tshuab cua sov ntawm lub tshuab cua sov los yog lub tshuab laminating yuav tsum muaj qhov kub thiab txias kom tsis txhob overheating lossis undercooling hauv qee qhov chaw.
Ib lub ntsuas kub infrared lossis thermal imager tuaj yeem siv los ntsuas qhov kub thiab txias ntawm cov cua sov chais, kom ntseeg tau tias qhov ntsuas kub tsawg dua lossis sib npaug li 3 degree.
2.2 Kho Siab thiab Ceev
Roller Siab
Cov menyuam siab yuav tsum sib xws. Lub siab ntau dhau tuaj yeem ua rau wrinkles yooj yim, thaum lub siab tsis txaus yuav tiv thaiv kom tiav adhesion.
Nws raug nquahu kom kho lub siab nyob rau hauv ntu rau loj - hom ntawv lossis tuab substrates kom ntseeg tau tias muaj zog sib npaug hauv txhua ntu.
Lamination Ceev
Lub lamination ceev yuav tsum tau sib npaug nrog qhov kub - nias kub. Kev kub ceev heev tuaj yeem ua rau cov cua sov tsis txaus ntawm cov khoom siv hauv zaj duab xis, thaum qis qis heev yuav ua rau kom muaj cua sov, ua rau thaj chaw wrinkling.
Rau cov yeeb yaj kiab ntawm cov thicknesses sib txawv thiab cov substrates, qhov zoo tshaj plaws ceev tuaj yeem txiav txim siab sim: 0.5–1 m / min yog pom zoo rau me me - hom ntawv, thiab 0.3–0.7 m / min rau nruab nrab - hom ntawv.
2.3 Xaiv qhov tsim nyog Thickness thiab zoo zaj duab xis
Zaj duab xis Thickness
Cov yeeb yaj kiab nyias (20-25 microns) soften thiab wrinkle yooj yim, haum rau cov ntaub ntawv me me; cov yeeb yaj kiab tuab (35–50 microns) ruaj khov dua thiab haum rau loj - hom ntawv luam tawm lossis cov khoom ntim.
Zaj duab xis zoo
High- cov yeeb yaj kiab zoo muaj qhov sib npaug sib npaug thiab qhov sib npaug ntawm cov thermal shrinkage, nrog rau thermal expansion ntawm cov khaubncaws sab nraud povtseg sib txawv, txo qis qhov wrinkling.
Kev xaiv zaj duab xis ua haujlwm
Rau siab -kub lamination, tshav kub-resistant lossis wrinkle- cov yeeb yaj kiab tuaj yeem raug xaiv. Cov yeeb yaj kiab no suav nrog qhov qis- cua sov- txheej shrinkage lossis tensile- txheej tiv thaiv thaum kub nias kom txo qis hauv zos wrinkles.
2.4 Khaws lub substrate qhuav thiab tiaj tus
Substrate Moisture Control
Kev nqus dej noo thiab nthuav tawm ntawm daim ntawv lossis cov duab los qhia yog qhov ua rau wrinkling ntawm qhov kub thiab txias.
Nws raug nquahu kom tswj cov substrate noo noo nyob rau hauv thaj tsam ntawm 4-6%. Kev ziab yuav tsum tau ua ua ntej lamination yog tias tsim nyog.
Substrate Flatness
Rau corrugated los yog warped ntawv, ua ntej - nias los yog clamp nws kom lub tiaj tiaj ua ntej nkag mus rau hauv xovxwm kub.
2.5 Preheating thiab Segmented ua
Kev kho cua sov
Rau cov nplooj ntawv tuab lossis loj dua, preheat ntawm qhov kub qis rau 20-30 vib nas this kom tso cai rau lub substrate thiab zaj duab xis kom sov ib txhij, txo cov thermal stress.
Segmented ua
Rau cov ntim loj lossis cov ntawv qhia, lamination tuaj yeem ua tau nyob rau hauv ntu, npog thaj chaw me me txhua zaus kom txo qis wrinkles tshwm sim los ntawm qhov sib txawv ntawm thermal expansion.
2.6 Siv cov yeeb yaj kiab ua haujlwm zoo
Anti-Wrinkle Txheej
YIDU muaj cov yeeb yaj kiab uas muaj kev tiv thaiv-wrinkle, qis-shrinkage txheej kom tswj tau cov yeeb yaj kiab flatness thiab txo qhov wrinkling thaum lub sijhawm ua haujlwm kub -.
High -Tub kub Resistant Txheej
Rau siab -kub kub- qhov chaw sib khi, cov cua sov xaiv- cov yeeb yaj kiab tiv thaiv tuaj yeem tiv taus cov txheej txheem kub siab tshaj 150℃yam tsis muaj deformation.
Environmentally Friendly Txheej
Siv ib puag ncig tus phooj ywg dej-raws li cov ntaub ntawv zaj duab xis txheej, nws tsis tsuas yog muaj kev tiv thaiv zoo heev tab sis kuj ua tau raws li cov khoom ntim ntsuab.