Ingxowa ye-PE yingxowa eqhelekileyo kubomi bethu bemihla ngemihla, esetyenziselwa zonke iintlobo zokupakisha iziqhamo nemifuno, iingxowa zokuthenga, ukupakisha iimveliso zezolimo, njl. Ukwenza ingxowa yefilimu yeplastiki ebonakala ilula kunokuba nzima kakhulu. Inkqubo yokuvelisa ingxowa ye-PE ibandakanya amasuntswana eplastiki - ukuxuba ubushushu - ukolula i-extrusion - unyango lwe-elektroniki -; Ingxowa ye-PE ikakhulu ziinkqubo ezininzi ezingentla, ezilula emva kweenkqubo ezintathu: ifilimu yokuvuthela ------ ukuprinta ------- ukwenza ingxowa.
Inkqubo yokuprinta iingxowa ze-PE kufuneka inike ingqalelo kwintoni?
I-Polyethylene, ukumelana okuhle kakhulu nobushushu obuphantsi (sebenzisa ubushushu ukuya kuthi ga kwi--70 ~ -100), uzinzo lweekhemikhali, uninzi lwe-asidi kunye nokukhukuliseka kwe-alkali (kunye nokunganyamezelani ne-oxidizing acid), ukunganyibiliki kwizinyibilikisi eziqhelekileyo kubushushu begumbi, ukufunxwa okuphantsi, ukusebenza kakuhle kobushushu bombane. Nangona kunjalo, i-polyethylene inovelwano kuxinzelelo lokusingqongileyo (isenzo seekhemikhali kunye noomatshini) kwaye ayilunganga ekugugeni kobushushu. Iimpawu ze-polyethylene ziyahluka ukusuka kwiintlobo ngeentlobo, ikakhulu kuxhomekeke kwisakhiwo se-molecular kunye noxinano. Iimveliso ezinobunzima obahlukeneyo (0.91-0.96 G/CM3) zinokufunyanwa ngeendlela ezahlukeneyo zemveliso. I-Polyethylene inokucutshungulwa ngeendlela eziqhelekileyo zokwenza i-thermoplastic (jonga ukucubungula iiplastiki).
Ngawaphi amanqaku anxulumene nenkqubo ngokweenkcukacha apha ngezantsi?
Inkqubo yokuvuthela ifilimu kufuneka inike ingqalelo kula manqaku alandelayo:
1. Umlinganiselo wezinto eziluhlaza: ngokweemfuno ezahlukeneyo zeengxowa ze-PE, ukulungiswa kwemilinganiselo eyahlukeneyo yezinto eziluhlaza. Umzekelo: i-anti-static, i-anti-rust, ukunciphisa, i-electrical conductivity, i-biodegradation kunye nezinye iimfuno, yongeza iindidi ezahlukeneyo zezongezo ezincedisayo umzekelo: ukusebenzisa umbala obomvu, omnyama, umbala kunye neminye imibala, yongeza iindidi ezahlukeneyo zeminqwazi yemibala. Ngokweembonakalo, ukuqina, amandla okukrazula, ukukhupha i-vacuum kunye nezinye iimfuno, tshintsha iintlobo ngeentlobo zeempawu okanye iimpawu zezinto ze-PE. Umzekelo: ngokweemfuno ezikhethekileyo, gxininisa iimfuno zembonakalo ephezulu, ukukrazula okunamandla, ukuvuleka okuhle, ukuze utshintshe umlinganiselo wezinto eziluhlaza.
2. Inkqubo yokuvuthela ifilimu, imfuneko yokucubungula nge-elektroniki, ngeli xesha kufuneka kuqwalaselwe amandla okucubungula nge-elektroniki, ukuqinisekisa ukuba amandla okucubungula nge-elektroniki e-PE (DAYIN) anele ukuqinisekisa ukunamathela kwe-inki.
3.kwinkqubo yokuvuthela ifilimu, ngokweemfuno ezikhethekileyo zefilimu, ukuvulwa kube kanye, ukuvulwa kabini, ukugoba, umonakalo wenqaku loxinzelelo, ukugquma, ukwandiswa kunye neminye imisebenzi.
Inkqubo yokuprinta iibhegi ze-PE kufuneka inike ingqalelo kule mibandela ilandelayo:
1. i-inki yokushicilela: i-inki esekwe emanzini, i-inki eyomisa ngokukhawuleza, i-inki engabonakaliyo, i-inki etshintsha umbala, i-inki echasene nobuxoki, i-induction, i-inki eqhubayo, i-inki ephantsi ye-elektroniki, i-inki engacwebezeliyo kunye nezinye iimpawu ze-inki ziyi-inki.
2. Ipleyiti yokuprinta: ngokweemfuno ezincinci zomxholo wokuprinta, kusetyenziswa ukuprinta igravure (ipleyiti yobhedu) kunye nokuprinta i-flexography (i-offset). Ezi ndlela zimbini zahlukeneyo zokuprinta.
3. Ngokwendlela yobunzima bomxholo wokuprinta kunye nobunzima bombala, khetha indlela yokuprinta: ukuprinta nge-monochrome, ukuprinta nge-monochrome emacaleni amabini, ukuprinta ngemibala emacaleni elinye, ukuprinta ngemibala emacaleni amabini.
4. Ngokweemfuno ezikhethekileyo zeepateni zokuprinta, ngokweempawu zokutshintsha kombala, ukuthintela ukwenziwa kwezinto ezingeyonyani, ukuhanjiswa kombane, izincamathelisi njalo njalo, khetha i-inki okanye izongezo ezahlukeneyo.
Ixesha lokuthumela: Matshi-03-2022
