Ib, Printing ntawm cov khoom noj hloov pauv cov khoom ntim khoom
①Txoj kev luam ntawv
Khoom noj khoom haus hloov pauv ntim luam ntawv feem ntau yog gravure luam ntawv thiab flexographic luam ntawv, ua raws li kev siv lub tshuab luam ntawv flexographic los luam cov yas zaj duab xis (flexographic tshuab luam ntawv thiab tshuab ziab tshuab feem ntau tsim cov kab ntau lawm), tab sis muaj ntau qhov sib txawv piv nrog rau kev luam ntawv gravure thiab flexographic luam ntawv siv nyob rau hauv publishing thiab khoom luam ntawv.Piv txwv li, kev luam ntawv ntim tau yooj yim yog nqa tawm ntawm qhov chaw ntawm yob-puab substrate.Yog tias nws yog cov yeeb yaj kiab pob tshab, cov qauv tuaj yeem pom los ntawm sab nraub qaum, thiab qee zaum ib txheej ntawm cov xim dawb yuav tsum tau luam tawm, lossis siv cov txheej txheem luam ntawv sab hauv.
②Txhais cov txheej txheem luam ntawv sab hauv
Inner printing yog hais txog ib txoj kev luam ntawv tshwj xeeb uas siv lub phaj luam ntawv ntawm cov duab thim rov qab los hloov tus number case mus rau sab hauv ntawm cov khoom luam ntawv pob tshab, thiaj li ua kom pom cov duab zoo nyob rau pem hauv ntej ntawm cov khoom luam tawm.
③Qhov zoo ntawm Is Nrias teb
Piv nrog rau cov khoom luam tawm saum npoo, cov khoom luam tawm sab hauv muaj qhov zoo ntawm qhov ci thiab zoo nkauj, ci xim / ceev, noo noo thiab hnav tsis kam;Tom qab kev luam ntawv sab hauv, txheej number case yog sandwiched ntawm ob txheej ntawm zaj duab xis, uas yuav tsis ua paug lub ntim.
二, Composite ntawm cov khoom noj hloov pauv cov khoom ntim khoom
①Txoj kev ntub dej sib xyaw
Ib txheej ntawm cov dej-soluble nplaum nplaum yog coated rau saum npoo ntawm cov khoom siv hauv paus (yas zaj duab xis, aluminium ntawv ci), uas yog sib xyaw nrog lwm cov ntaub ntawv (daim ntawv, cellophane) los ntawm cov menyuam lub siab, thiab tom qab ntawd qhuav rau hauv cov yeeb yaj kiab los ntawm qhov kub. qhuav channel.Txoj kev no siv tau rau ntim cov khoom noj qhuav.
②Qhuav compound method
Ua ntej, sib npaug ntawm cov kua nplaum-raws li cov nplaum rau ntawm lub substrate, thiab tom qab ntawd xa mus rau hauv qhov kub kom qhuav channel kom cov kuab tshuaj tag nrho volatilize, thiab tam sim ntawd sib xyaw nrog lwm txheej ntawm zaj duab xis.Piv txwv li, cov zaj duab xis stretched polypropylene (OPP) feem ntau yog sib xyaw nrog lwm cov ntaub ntawv los ntawm cov txheej txheem qhuav qhuav tom qab luam ntawv sab hauv.Cov qauv tsim yog: biaxially oriented polypropylene zaj duab xis (BOPP, 12μ m) Aluminium ntawv nyiaj (AIU, 9μ m) Thiab unidirectionally stretched polypropylene zaj duab xis (CPP, 70μ m).Cov txheej txheem yog sib npaug ntawm cov kuab tshuaj-hom "dub nplaum hmoov" ntawm cov khoom siv nrog cov txheej txheem txheej txheej, thiab tom qab ntawd xa mus rau hauv lub tshuab ziab khaub ncaws kub kom tag nrho cov volatilize hnyav, thiab tom qab ntawd muab nws nrog lwm txheej ntawm zaj duab xis. ib tug composite roller.
③Extrusion compound method
Cov ntaub ntawv zoo li molten polyethylene extruded los ntawm lub slit ntawm T pwm yog pressurized los ntawm lub clamping roller thiab salivated rau hauv daim ntawv los yog zaj duab xis rau polyethylene txheej, los yog lwm yam films yog muab los ntawm lub thib ob daim ntawv pub, thiab cov polyethylene yog bonded raws li ib tug kev sib txuas txheej.
④Kub-melt composite method
Polyethylene-acrylate copolymer, vinyl acid-ethylene copolymer thiab paraffin yog rhuab thiab yaj ua ke, tom qab ntawd coated rau ntawm cov khoom siv, tam sim ntawd sib xyaw nrog lwm cov ntaub ntawv sib xyaw thiab tom qab ntawd txias.
⑤Multi-layer extrusion composite txoj kev
Ntau yam ntawm cov yas resins nrog cov khoom sib txawv yog nyem rau hauv pwm los ntawm ntau yam extruders los ua ib zaj duab xis sib xyaw.Cov txheej txheem no tsis siv cov nplaum thiab cov kuab tshuaj organic nruab nrab ntawm cov khaubncaws sab nraud povtseg.Cov yeeb yaj kiab tsis muaj ntxhiab tsw ntxhiab thiab tsis muaj teeb meem hnyav nkag mus.Nws yog qhov tsim nyog rau kev ntim khoom noj nrog lub txee ntev dua.Piv txwv li, cov qauv dav dav LLDPE / PP / LLDPE muaj cov pob tshab zoo, thiab cov tuab feem ntau yog 50-60μ m.Yog tias lub txee lub neej ntev dua, nws yuav tsum siv ntau tshaj tsib txheej txheej txheej txheej txheej siab co-extruded zaj duab xis, thiab cov txheej txheem nruab nrab yog cov khoom thaiv siab PA, PET thiab EVOH.
Post lub sij hawm: Mar-07-2023
