Ulwazi olusisiseko lwefilimu yeplastiki

Kwi-NATIONAL PACKAGING GENERAL (GB4122-83), inkcazo yokupakisha okuguquguqukayo kukuba: ukupakishwa okuguquguqukayo kubhekiselele kwi-packaging enokutshintsha imilo yesikhongozeli emva kokuzaliswa okanye ukususa iziqulatho. Zonke iintlobo zeengxowa, iibhokisi, iiseti kunye neimvulophu ezenziwe ngephepha, i-aluminium foil, i-fiber, ifilimu yeplastiki kunye ne-complex yazo i-flexible packaging. Ngokuqhelekileyo, iiplastiki zephepha ezinobunzima obungaphantsi kwe-0.25mm zibizwa ngokuba ziifilimu. Ifilimu yePlastiki ibonakala, iguquguqukayo, inamandla okumelana namanzi, ukunyanzeliswa komswakama kunye nokuchasana komoya, amandla afanelekileyo omatshini, iipropati ezizinzileyo zeekhemikhali, ukuxhathisa kweoli, ukuprintwa okulula kokubhaliweyo, kunokutshisa isikhwama sokutywina. Inokuhlangabezana neemfuno zokupakisha zazo zonke iintlobo zezinto, isetyenziswa kwipakethe ekulula ukuyigcina, kulula ukubeka ukutya okufanelekileyo, iimfuno zemihla ngemihla, ivenkile enkulu, iimpahla ezincinci zepakethe ezifanelekileyo. I-Guangdong Danqing Printing Co., Ltd ineminyaka engama-30 yamava kwimveliso yokupakisha eguquguqukayo, ngokukodwa ukuvelisa isikhwama se-spout, isikhwama sokuma se-zipper, ifilimu yeplastiki kunye nokunye; Nikeza ngoshicilelo olugqwesileyo, unokuprinta ukuya kuthi ga kwimibala eyi-13.

Ukupakishwa kokupakishwa okuguquguqukayo okusekelwe kwifilimu yeplastiki kudlala indima ebalulekileyo ekupakisheni ukupakisha. Ngokwezibalo, ukususela ngo-1980, ukupakishwa kweplastiki kumazwe athile ahambele phambili kwehlabathi kwenza i-32.5% ~ 44% yokushicilela ukupakisha.

Ngokubanzi, ngenxa yokuba imathiriyeli yefilimu enye ayifanelekanga kukhuseleko lwangaphakathi, ngoko ke ngaphezu kweentlobo ezimbini zeefilimu zisetyenziselwa ukudibanisa kuluhlu lwefilimu edibeneyo, ukuhlangabezana neemfuno zokugcinwa kokutya, iteknoloji yokupakisha i-aseptic. Ukukhethwa kwezinto zangaphandle zefilimu edibeneyo akulula ukuzikrwempa, ukugqoka, ukusebenza kakuhle kwe-optical, ukusebenza kakuhle kokuprinta kwezinto, njengale: iphepha, i-cellophane, i-tensile polypropylene, i-polyester, njl.; Umaleko ophakathi ngumqobo wepolymer, njengale: ifoyile yealuminiyam, i-aluminiyam eshushu, i-polyvinyl diazene yombane yangaphakathi yezixhobo zombane zikhethwa ikakhulu ezingeyiyo ityhefu, i-polyethylene engenancasa kunye nenye intlaka ye-thermoplastic.