umcweba wokugqunywa kwezinja
Ukuphawula i-film leshrink lwenqanawe kwi-industri ye-pakhejini yikhetha iseksihloko esidingi kwi-loji ya pakhejini, uhlala amandla nokuthi amaphrofethi asebenzisa ngokubonakalisi nokukhombisa kuzo zonke izikhiqizo. Le ndaba lokusebenza lokupakheka luhlola nge-teknoloji yenqanawe yokuphakamisela okungakhotholiwe ukuba lishrink ngendlela elizenzakalelayo xa kulandelwa ngomphilo, ukulandela iphrofethi engcono enhle ekusindiswa ngaphandle kokunqophelweyo. Isimo sokuncedisiwe kwe-film kukhethwe ngokugcina ukuba akwazi ukugcina ngokushintsha kwindawo elilinganayo, futhi akufanele ukuba kuhlanganise umlando wakhe we-60% wesayizi sakhe sokuqala ngokugcina umthombo wakhe wesayizi. I-film ezilungile eziyindlela ezinamandla zitholakala emibhaleni apho amakheli amaningi, ezifumanekayo amathikithi angama-45 kuma-150 mikroni, ukusetyenziswa kumazinye imithetho ye-pakhejini. Amafayela amadliwe ngokubanzi kunokuthi bayahlala ngokubhekeka kakhulu, bayahlala ngokubhekisisa kakhulu, futhi bayahlala ngokubhekeka kakhulu kumazinye imithetho, ukuba zihlale zikhona ngokubhekeka kakhulu phakathi komphakathi nokurentali. Imikhakha yesayithi yakuphawula yiyingxenye ezininzi, futhi ziyinkulumo eziningi ngokuthi ziyinkulumo ze-polyolefin, PVC, ne-polyethylene, ezizivakalisha ngokubhekeka kakhulu kumazinye imithetho ye-pakhejini. Amafayela akhethwa ngokubhekeka kakhulu ngenani lesayithi lesishrink, ngenani lebhekeka, futhi ngenani lemfanelo, ukuba amaphrofethi azikhetha indlela eyayiphi ingeyazi ukuba yayingaphezu kwezinto zakhe. Ngakho ke, amafayela angenziwa ngokubhekeka kakhulu nge-sistimi sezinhloso zokuphawula, ukuba zingabuyeleye amandla amahhuli wokuphawula ngendlela enenhle ngokubhekeka kakhulu.