Xa sithetha ngefilimu ye-co-extrude sibhekisela kuyo?Ifilimu esiyisebenzisayo iveliswa njani?
Ifilimu yokupakisha ukutyayenziwa ngeenkqubo ezimbini: Co-extrude kunye neLamination.Namhlanje sithetha ikakhulu malunga nefilimu edibeneyo.Kukho iinkqubo ezintathu ezahlukeneyo ze-co-extrusion: ukubumba ukuvuthela, ukupholisa kwamanzi kunye nokuphosa.
Ngoko ke, zeziphi iindlela zokuvelisaifilimu yokupakisha ukutya?
1. Indlela yokuvuthela
Ngokusebenzisa ukupholisa komoya ukwenza ifilimu ipholise umphezulu, ukuze iphole ngokukhawuleza, ithambile, isolulwe njengesangqa, ukucaca kwayo kungaphantsi kancinci kumanzi okupholisa kunye nokuphoswa, kodwa ukucaba kunye neefilimu zingcono ukwenza iipowutshi, ngelixa ukolulwa kwe-spherical. imveliso yehigh-barrier ukutya stretch filmi-ductility inempembelelo yokuhamba.
2. Ukupholisa Amanzi
Ngokudibana ngokuthe ngqo kwamanzi kunye nefilimu yokupholisa umphezulu wefilimu, ngoko inokupholiswa ngokukhawuleza, ukunwenwa kwe-spherical, ukuthambeka kwayo kungaphantsi kancinci kwindlela yokuhamba, kodwa kukhanya ngcono, ngelixa ukolulwa kwe-spherical yemvelisohigh-barrier ukutya stretch filmi-ductility inempembelelo yokuhamba.
3. Indlela yokuphosa
Ngokupholisa i-roller yokupholisa, ukutya okunezithintelo eziphakamileyo zefilimu ezenziwe nge-longitudinally zinokuzolula okuthe ngqo, ngokunqamlezayo akunasolula, ukucaca okubanzi kulungile, ukucaca kukwesibini kwindlela yokuvuthela, kodwa i-ductility yolula ingcono.
Ifilimu eneshumi elinanye ehamba kunye ne-co-extruded ifilimu isebenzisa inkqubo yokulibaziseka, ifilimu eneshumi elinanye-i-1 ixesha lokubumba i-co-extrusion, ukubumba njengengxangxasi emva kwenkqubo yokulibaziseka kokuhamba kwehle, emva kokuba ii-roller zamanzi ezibandayo zibe zibanda kwifilimu yeplastiki, ngenxa yokuba ifilimu yokupakisha ukutya ngokwayo ayizange yolulwe, ukusebenza kakuhle kwe-ductility, ngowona matshini wolukileyo ulungelelanisa ifilimu eyolulayo, esetyenziswa kwi-batch yokupakisha ukutya, kunohlobo lwemveli lomatshini wokucoca, ukonga abasebenzi, ukusebenza kakuhle okuphezulu.
Njengeyona nto iphambili yokusetyenziswaifilimu yokupakisha ukutya, uluhlu olubanzi lweemfuno ezahlukeneyo, iziqulatho zipakishwe ukusuka eluhlaza ukuya kuphekiweyo, ukusuka kwiqondo eliphantsi ukuya kwiqondo eliphezulu, ukusuka kwiziqhamo ezilula ezikhohlakeleyo ukuya kumantongomane aqinileyo, ukusuka kwiingxowa zokupakisha ze-vacuum ukuya kwiingxowa zokupakisha ezi-inflatable, ngokusisiseko zigubungela uluhlu lweengxowa zokupakisha ezidibeneyo. .
1. Iimfuno zokuba wedwa:Uninzi lwecandelo lokutya lutyebile ngamafutha kunye nee-oyile, amafutha kunye neeoyile zithande ukuba ne-oxidation kunye nokuwohloka, ngoko ke iimfuno ezingqongqo zesithintelo se-oxygen,ifilimu yokupakisha ukutyaphakathi kweemfuno zokunyuka okanye ukuhla kokufuma ziphezulu kakhulu.
2. Umsebenzi wokufuma:ukutya konke kuqulethe ukufuma okuthe ngqo, xa kukhethwe izinto zokupakisha, kwimeko yeemeko zokulungisa ukutya, ifomyula ihlala ingatshintshi, umthamo wokufuma wokutya utshintsha kancinci kakhulu.Xa iimeko zitshintsha, iya kuchaphazela ngokuthe ngqo ixabiso lokuqala lokufuma kokutya, kwaye ukufuma yenye yezinto ezibalulekileyo ezibangela ukuwohloka kokutya, okoko nje kukho umxholo othile wokufuma, ii-microorganisms zinokukhula.Ukutya kokufuma okwahlukileyo, makusetyenziswe imathiriyeli neendlela ezahlukeneyo.
a.Ukufuma okuphantsi kokutya okusebenzayo.Iibhaktheriya azikwazi ukusinda kumsebenzi wokufuma ongaphantsi kwe-0.65 yokutya, ngenxa yomsebenzi wokufuma ongaphantsi kwe-0.60 yokutya okomileyo, okoko nje kunokugcinwa komile ixesha elide kunokukhululeka ukubola kokutya okubangelwa yintsholongwane.
b.Ukutya okunomsebenzi wokufuma ophakathi.Ngomsebenzi wokufuma kwi-0.60-0.90 yokutya okufuma okuphakathi, ukugcina iindlela zomgangatho wokutya zezi,ukupakishwa kwevacuum, ukupakishwa kwe-nitrogen, ukupakishwa kwe-deoxidizer, njl., ifakwe kwi-fatty fat oxidative deterioration, ukubola kokutya, njl.
c.Ukufuma okuphezulu ukutya okusebenzayo.Kumsebenzi wokufuma kwi-0.9-1.0 yokutya kwenkqubo yokufuma okuninzi, iindlela zokugcina umgangatho: i-100 ℃ okanye ngaphezulu kokufudumeza inzala, ukusetyenziswa kwe-hydrogen peroxide, i-radiation kunye nezinye inzalo yokupakishwa kwe-aseptic.
3. Ifilimu yokupakishwa kokutya kwendima yokupakishwa kwe-inflatable:Indima yokupakishwa kwe-inflatable kukwandisa ubomi beshelufu, uhlobo lwe-inflatableiingxowa zokupakishangeemfuno ezahlukeneyo.
4. Iimfuno zengxowa yokupakisha yeCereal:Ukutya okuziinkozo kunomphumo wokuphefumla, iinkozo ezahlukeneyo kumthamo we-oxygen adsorption zihluka kakhulu, kwiingxowa zokupakisha eziziinkozo, zinokusetyenziswa kwindawo ebalaseleyo yokwahlulwa kwefilimu yokupakishwa kokutya ezaliswe yioksijini ekugcinweni ngcono kweengxowa zokupakisha ezinokufutha.
5. Iimfuno zevacuum:Ipakethe esusiweyo ibekwe yodwa ioksijini, ubungqina bokufuma, zombini ukukhusela umgangatho wezinto kunye nokwenza inkangeleko yempahla ibonakale ilungile, inesisa.
Ixesha lokuposa: Aug-20-2021