Ifilimu eyolulayo, ekwabizwa ngokuba yifilim eyolulayo kunye nefilimu yokuncipha kobushushu, yaveliswa okokuqala eTshayina isebenzisa i-PVC njengesiseko semathiriyeli kunye ne-DOA njengeplastiki kunye nefuthe lokuzincamathela lefilimu eyolulayo ye-PVC. Ngenxa yeengxaki zokusingqongileyo, ixabiso eliphezulu (ngokumalunga ne-PE, indawo yokupakisha encinci kwiyunithi nganye) kunye nokwelula okungahambi kakuhle, ifilimu ye-PE yolula ikhutshwe xa imveliso yasekhaya iqala ngo-1994-1995. Izinto ezisisiseko ziyi-LLDPE, kuquka i-C4, i-C6, i-C8 kunye ne-metallocene PE (MPE).
Iifectures
Iveliswa ngokusebenzisa i-resin ye-LLDPE ephuma kumazwe angaphandle kunye ne-tackifier izongezo ezikhethekileyo zefomyula elinganayo, kwaye inokuvelisa ifilimu ejikelezayo esebenzayo ngesandla, umatshini wokumelana nohlobo, umatshini wohlobo lokunweba kwangaphambili, i-anti-UV, i-anti-static kunye ne-anti-rust. Inezi ncedo zilandelayo:
1. Ukusebenzisa i-double-layer co-extrusion izixhobo, ifilimu egxininisiweyo ejikelezayo inokwandisa iimpawu zayo yonke i-polymer nganye, ukucaca kwayo, amandla okuqina, kunye nokuxhatshazwa kwe-perforation, ukufikelela kwimeko efanelekileyo kwindawo yokunyibilika.
2. Ineempawu ezilungileyo zokuqina, ukungafihli kakuhle, kunye nobukhulu obufanayo.
3. Inobude obude, yomelela kakuhle, imelana nokukrazuka okuthe tyaba, kunye nomgangatho ogqwesileyo wokuzincamathelisa.
4. Kuyinto ehambelana nokusingqongileyo izinto ezinokuphinda zisetyenziswe, azinancasa, azinatyhefu, zinokupakishwa ngokuthe ngqo kukutya.
I-5. inokuvelisa iimveliso zokubambelela kwicala elinye, ukunciphisa ingxolo ekhutshwe ngexesha lokujikeleza kunye nenkqubo yokwelula, ukunciphisa uthuli kunye nesihlabathi kwinkqubo yokuthutha kunye nokugcinwa.
Isicelo
1. Ukupakishwa okutywiniweyo
Olu hlobo lokupakisha lufana nokupakisha ifilimu, apho ifilimu ihlanganiswe kwi-pallet ukuze idibanise yonke into, kwaye emva koko ii-heat grippers ezimbini zokushisa zitywina ifilimu kuzo zombini iziphelo kunye. Olu lolona hlobo lokuqala lokusonga-jikelele kwefilimu esetyenzisiweyo kwaye ikhokelele kuphuhliso lweendlela ezininzi zokupakisha.
2. Ukupakishwa kobubanzi obugcweleyo
Olu hlobo lokupakisha ludinga ukuba ifilimu ibe banzi ngokwaneleyo ukugubungela i-pallet, enemilo eqhelekileyo, ngoko ifanelekile ukusetyenziswa kunye nobukhulu befilimu ye-17 ukuya kwi-35μm.
3.Ukupakishwa ngesandla
Olu hlobo lokupakisha lolona hlobo olulula lokupakisha ifilimu, ifilimu efakwe kwi-shelf okanye ngokuphathwa ngesandla, ngokujikeleza kwe-pallet okanye ifilimu ejikeleze i-pallet. Isetyenziselwa ikakhulu ukupakishwa kwakhona kweepalethi ezisongelweyo emva kokuqhekeka, kunye nokupakishwa kwepallet eqhelekileyo. Olu hlobo lokupakisha lucotha kwaye ubukhulu befilimu obufanelekileyo buyi-15 ukuya kwi-20 μm.
