Ulwazi Oluyisisekelo Lomkhiqizo Wepayipi Lepulasitiki
Eminyakeni yamuva nje, izinkambu zokusetshenziswa kwe- ipayipi lezimonyo lepulasitikiukupakishwa kuye kwanda kancane kancane. Imikhiqizo yezimboni ikhethe ukupakishwa kwepayipi lokucindezelwa, njengamafutha okugcoba, iglue yengilazi, kanye ne-caulking compound; imikhiqizo yokudla ikhethiwe ukupakishwa kwepayipi lokucindezelwa, njenge-mustard kanye ne-chili sauce; kanye namafutha okugcoba emithi akhethe amapayipi. ukupakishwa kwepayipi lokucindezelwafuthi ithuthukiswa njalo. Imikhiqizo eminingi emikhakheni ehlukene isebenzisa "amashubhu" ukupakisha. Ku- ipayipi lezimonyo lepulasitikiimboni, amashubhu ayathandwa ngenxa yokuwacindezela nokusebenzisa kwawo kalula, isisindo esincane kanye nokuphatheka kalula, imininingwane engenziwa ngokwezifiso, kanye nokuphrinta okwenziwa ngokwezifiso. Asetshenziswa kabanzi ekupakisheni izimonyo, imikhiqizo esetshenziswa nsuku zonke, kanye nemikhiqizo yokunakekelwa kwezinwele.
Inhlanganisela ye-aluminium-plastic ipayipi lezimonyo lepulasitikiIzitsha zokupakisha ezenziwe nge-aluminium foil kanye nefilimu yepulasitiki ngokusebenzisa i-co-extrusion kanye nezinye izinqubo zokwakha amashidi, abese ecutshungulwa abe yizimo zamashubhu yimishini ekhethekile yokwenza amashubhu. Isakhiwo sazo esijwayelekile yi-PE/PE+EAA/AL/PE+EAA/PE. I-aluminium-plastic composite ipayipi lezimonyo lepulasitikiAma-s asetshenziswa kakhulu ekupakisheni izimonyo ezinezidingo eziphezulu zokuhlanzeka kanye nezakhiwo zokuvimbela. Ingqimba yokuvimbela ivame ukuba yi-aluminium foil, futhi impahla yayo yokuvimbela incike ezingeni le-pinhole ye-aluminium foil. Ngokuthuthuka okuqhubekayo kobuchwepheshe, ubukhulu bengqimba yokuvimbela ye-aluminium foil kumashubhu e-aluminium-plastic composite buncishisiwe kusukela ku-40μm yendabuko kuya ku-12μm noma ngisho no-9μm, okusindisa kakhulu izinsiza.
Amashubhu ezimonyo epulasitiki e-PEKwenziwa ngokukhipha ndawonye ukusebenza okuhlukile bese kufakwa izinto zokusetshenziswa ndawonye ngesinyathelo esisodwa. Kukhishwa ndawonye ngepulasitiki ipayipi lezimonyo lepulasitikiAma-s ahlukaniswe ngamapayipi akhishwe ngongqimba olulodwa kanye namapayipi akhishwe ngongqimba olunezingqimba eziningi. Eyokuqala isetshenziselwa kakhulu ukupakisha izimonyo ezidliwa ngokushesha ezinezidingo zokubukeka okuphezulu kodwa izidingo zokusebenza eziphansi (njengokhilimu wesandla, njll.), kanti eyesibili isetshenziselwa kakhulu ukupakisha izimonyo zekhwalithi ephezulu.
Inhlanganisela yepulasitiki yonke ipayipi lezimonyo lepulasitikiAma-s enziwa ngokukhipha ukusebenza okuhlukene kanye nokuthayipha izinto zokusetshenziswa ndawonye ngesinyathelo esisodwa. Amashubhu epulasitiki akhishwe ngokuhlanganyela ahlukaniswe ngamashubhu akhishwe ngongqimba olulodwa kanye namashubhu akhishwe ngokuhlanganyela ngongqimba oluningi. Eyokuqala isetshenziselwa kakhulu ukupakisha izimonyo ezisetshenziswa ngokushesha ezinezidingo zokubukeka okuphezulu kodwa izidingo zokusebenza eziphansi (njengokhilimu wesandla, njll.), kanti eyesibili isetshenziselwa kakhulu ukupakisha izimonyo zekhwalithi ephezulu.
Amapayipi ukupakishwa kwepayipi lokucindezelwaIzitsha ezenziwe ngezinto ezifana nepulasitiki ye-PE, i-aluminium foil, kanye nefilimu yepulasitiki ngokusebenzisa i-co-extrusion nezinye izinqubo zokwakha amashidi, abese ecutshungulwa abe yizimo zamashubhu yimishini ekhethekile yokwenza amashubhu. Amashubhu anezinzuzo zesisindo esilula, ukuphatheka kalula, ukuqina, ukuphindeka kabusha, ukucindezelwa okulula, kanye nokucubungula okuhle nokuphrinta okuvumelana nezimo, okwenza athandwe phakathi kwabakhiqizi abaningi bezimonyo.