Chikwama cha PE ndi thumba lachizoloŵezi m'moyo wathu wa tsiku ndi tsiku, lomwe limagwiritsidwa ntchito pamitundu yonse ya zipatso ndi masamba, matumba ogula, zopangira zaulimi, ndi zina zotero.PE thumba kupanga ndondomeko zikuphatikizapo pulasitiki particles - kutentha kuvunda kusakaniza - extrusion kutambasula - mankhwala amagetsi -;PE thumba makamaka pamwamba angapo njira, chosavuta pambuyo njira zitatu: kuwomba filimu ------ kusindikiza ------ thumba kupanga.
PE thumba ndondomeko yosindikiza ayenera kulabadira chiyani?
Polyethylene, kwambiri otsika kutentha kukana (ntchito kutentha mpaka -70 ~-100), kukhazikika kwa mankhwala, asidi kwambiri ndi kukokoloka kwa alkali (ndi oxidizing tsankho asidi), insoluble mu zosungunulira ambiri kutentha firiji, otsika mayamwidwe, chabwino magetsi kutchinjiriza ntchito.Komabe, polyethylene imakhudzidwa ndi kupsinjika kwa chilengedwe (mankhwala ndi mawotchi) komanso kusauka kwa kutentha.Makhalidwe a polyethylene amasiyana mitundu ndi mitundu, makamaka kutengera kapangidwe ka maselo ndi kachulukidwe.Zogulitsa zokhala ndi makulidwe osiyanasiyana (0.91-0.96 G/CM3) zitha kupezeka ndi njira zosiyanasiyana zopangira.Polyethylene imatha kukonzedwa pogwiritsa ntchito njira wamba zopangira ma thermoplastic (onani Kukonza kwa Pulasitiki).
Ndi zolemba ziti zomwe zikugwirizana ndi ndondomekoyi mwatsatanetsatane pansipa?
Njira yowomba filimu iyenera kulabadira mfundo izi:
1. Kuchuluka kwazinthu zopangira: malinga ndi zofunikira zosiyanasiyana za matumba a PE, kukonzekera kwamitundu yosiyanasiyana ya zipangizo.Mwachitsanzo: odana ndi malo amodzi, odana ndi dzimbiri, kuchepetsa, madutsidwe magetsi, biodegradation ndi zofunika zina, kuwonjezera zosiyanasiyana zowonjezera zowonjezera mwachitsanzo: kugwiritsa ntchito zofiira, zakuda, mtundu ndi mitundu ina, kuwonjezera mitundu yosiyanasiyana ya zipewa.Malinga ndi kuwonekera, kulimba, kung'amba mphamvu, kutulutsa vacuum ndi zofunika zina, m'malo mwa mitundu kapena mitundu yazinthu za PE.Mwachitsanzo: malinga ndi zofunikira zapadera, tsindikani zofunikira zowonekera kwambiri, kung'amba mwamphamvu, kutseguka bwino, kuti musinthe chiwerengero cha zipangizo.
2.njira yowomba kusindikiza filimu, kufunikira kwa magetsi, panthawiyi kumvetsera mphamvu zamagetsi zamagetsi, kuonetsetsa kuti PE drum material electronic processing mphamvu (DAYIN) yokwanira kuonetsetsa kuti inki imamatira.
3.pamene mukuwomba filimu, malinga ndi zofunikira zapadera za filimuyo, kutsegula kamodzi, kutsegula kawiri, kupukuta, kuwononga kupanikizika, kusindikiza, kukulitsa ndi ntchito zina.
PE thumba ndondomeko yosindikiza ayenera kulabadira zinthu zotsatirazi:
1.inki yosindikizira: inki yokhala ndi madzi, inki yowumitsa mofulumira, inki yosaoneka, inki yosintha mitundu, inki yotsutsa-chinyengo, inki yopangira, inki yopangira, inki yochepa yamagetsi, inki ya matte ndi zizindikiro zina za inki.
2. Kusindikiza mbale: molingana ndi zofunikira zabwino zosindikizira, gravure (mbale yamkuwa) yosindikizira ndi flexography (offset) yosindikizira imagwiritsidwa ntchito.Njira ziwiri zosiyana zosindikizira.
3. Malingana ndi zovuta zosindikizira ndi zovuta za mtundu, sankhani njira yosindikizira: kusindikiza kwa monochrome, kusindikizira kwa monochrome kawiri, kusindikiza kwa mtundu umodzi, kusindikiza kwamitundu iwiri.
4. Malingana ndi zofunikira zapadera za machitidwe osindikizira, malingana ndi makhalidwe a kusinthika, anti-counterfeiting, conductivity magetsi, zomatira ndi zina zotero, sankhani inki yosiyana kapena zowonjezera.
Nthawi yotumiza: Mar-03-2022