Raws li cov yeeb yaj kiab ua haujlwm tau muab tso rau hauv daim ntawv yob, yob zaj duab xis cov qauv tsim kev sib koom ua ke ntawm cov ntaub ntawv tshawb fawb, kev tsim vaj tsev, thiab kev siv thev naus laus zis, aiming kom ua tiav qhov zoo sib npaug ntawm kev txuas ntxiv, ruaj khov, thiab ntau yam haujlwm. Tsis zoo li cov ntawv ua yeeb yaj kiab, yob zaj duab xis xav tau kom muaj lub cev zoo ib yam hauv nws lub xeev dov, ua kom muaj kev ua haujlwm loj -, thiab sai sai rov qab flatness thiab cov yam ntxwv ua haujlwm thaum unrolled rau kev siv. Qhov no hais tias txhua kauj ruam, los ntawm kev xaiv substrate mus rau cov qauv sib xyaw, yuav tsum ua raws li cov qauv tsim tshwj xeeb.
Lub hauv paus ntawm tus tsim yog thawj zaug thiab qhov tseem ceeb ntawm kev xaiv thiab kev ua tau zoo ntawm cov substrate. Feem ntau siv cov thermoplastic polymers rau yob zaj duab xis muaj xws li polyester (PET), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), thiab nylon (PA), txhua tus muaj lub zog tshwj xeeb, kub tsis kam, cov khoom thaiv, thiab cov yam ntxwv kho qhov muag. Thaum lub sijhawm tsim qauv, ib lossis ntau lub substrates yuav tsum raug xaiv rau ib zaug - txheej extrusion lossis ntau- txheej co-extrusion raws li ib puag ncig thiab kev ua haujlwm ntawm lub hom phiaj daim ntawv thov. Piv txwv li, siab -cov khoom ntim cov yob cov yeeb yaj kiab feem ntau siv PET / aluminium ntawv ci / PE cov qauv sib xyaw kom sib npaug zog, oxygen thiab noo noo barrier zog, thiab yooj yim ntawm tshav kub sealing; Thaum cov ntawv luam tawm yob cov yeeb yaj kiab nyiam cov pob tshab PET lossis BOPP nrog lub zog tsim nyog los xyuas kom meej cov number case adhesion thiab qauv clarity.
Nyob rau theem tsim qauv, yob zaj duab xis yuav tsum xav txog kev sib raug zoo ntawm interlayer thiab kev ntxhov siab. Cov khoom sib txawv muaj cov coefficient sib txawv ntawm thermal expansion, thermal shrinkage tus nqi, thiab moduli ntawm elasticity. Kev tsim tsis tsim nyog tuaj yeem ua tau yooj yim ua rau interlayer peeling, wrinkling, los yog warping thaum yob cia lossis kub hloov. Yog li ntawd, cov txheej txheem hloov pauv lossis cov nplaum nplaum feem ntau tau qhia hauv kev tsim qauv, siv cov hloov pauv kub-melt resins lossis cov polymers sib xyaw kom ua tiav cov kev sib txuas yooj yim thiab txo cov kev ntxhov siab sab hauv los ntawm thermal expansion thiab contraction. Nyob rau tib lub sijhawm, txhawm rau txhim kho cov haujlwm tshwj xeeb, txheej txheej thaiv, tiv thaiv - cov khaubncaws sab nraud povtseg, txheej txheej tiv thaiv zoo li qub, lossis cov txheej txheem zoo nkauj tuaj yeem siv rau saum npoo. Cov khaubncaws sab nraud povtseg no yuav tsum tsis yog tsuas yog ua tau raws li qhov yuav tsum tau ua tab sis tseem ua kom muaj zog adhesion rau substrate thiab kev ua haujlwm.
Lub yob zoo tsim kuj muaj feem xyuam rau kev ua tau zoo. Kev sib tw kom zoo yuav tsum tau tsim los ntawm kev sib tw winding, yob txoj kab uas hla, thiab zaj duab xis thickness: ntau qhov nro tuaj yeem ua rau zaj duab xis deformation deformation los yog txawm tias yielding, thaum tsis txaus nro ua rau lub yob xoob uas muaj feem cuam tshuam. Cov khoom siv tseem ceeb thiab qhov ntev yuav tsum tau sib haum nrog qhov dav dav, tuab, thiab qhov hnyav kom ntseeg tau tias kev txhawb nqa ruaj khov thiab yooj yim ntawm kev thauj khoom thiab tshem tawm. Xaus- ntsej muag zoo huv si thiab interlayer ntom ntom ncaj qha cuam tshuam qhov smoothness tom qab unwinding; yog li ntawd, qhov tsim nyog txias thiab winding ceev curves yuav tsum tau ua ntej - teem lub sij hawm tsim txheej txheem los xyuas kom meej lub shrinkage ntawm cov zaj duab xis txheej thaum lub sij hawm txias thiab tsis txhob residual stress concentration.
Tsis tas li ntawd, kev ua kom haum xeeb kuj yog ib qho tseem ceeb tsim qhov loj me. Yob zaj duab xis yuav tsum muaj kev noj qab nyob zoo nyob rau hauv siab -kev ceev luam ntawv, laminating, lub hnab ua, los yog cov khoom siv sib txuas, yuav tsum tau tswj tau qhov sib txhuam coefficient ntawm qhov sib txhuam, nruj, thiab kub- sealing teb. Tus qauv tsim tuaj yeem kho cov dej ntub dej thiab kev sib txhuam los ntawm kev kho mob corona saum npoo los yog micro-texturing kom zoo haum nrog cov khoom siv cov lus qhia cov menyuam tsis cuam tshuam rau kev luam ntawv zoo thiab lub zog lamination.
Feem ntau, cov qauv tsim ntawm yob zaj duab xis yog daim ntawv thov-xav tau taw qhia, tsim cov txheej txheem yob cov khoom siv uas sib xyaw ua haujlwm zoo, ua haujlwm txuas ntxiv, thiab kev siv ruaj khov los ntawm kev xaiv substrate, cov qauv sib xyaw, kev tswj kev ntxhov siab, thiab kev ua kom zoo dua qub. Qhov kev tsim qauv zoo no tso lub hauv paus txhim khu kev qha rau nws daim ntawv thov dav hauv ntim, luam ntawv, kev tsim kho, thiab kev lag luam tshwj xeeb.