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Izicelo ze-TPS ziya kuqhubeka ziphuhliswa ukuhlangabezana neemfuno zemarike ezihlala zitshintsha.

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I-EVOH Resins kwi-Packaging yokutya

35r8
I-EVOH (i-Ethylene Vinyl Alcohol) ii-resins zenze indawo ebalulekileyo kwishishini lokupakisha ukutya ngenxa yeempawu zabo zokuthintela ezikhethekileyo, ngakumbi ngokuchasene neegesi kunye nokufuma. Ezi propati zibalulekile ekugcineni ukutsha kokutya, ukwandisa ubomi beshelufu, kunye nokugcina umgangatho wencasa, okwenza i-EVOH ibe licandelo elixabisekileyo kwinkqubo yokupakisha ukutya.

Umzekelo obalaseleyo we-EVOH's utility kukusetyenziswa kwayo kwiifilimu zokupakisha ukutya okuninzi. Ngokuqhelekileyo, i-EVOH isetyenziswe umaleko ophakathi kule filimu, idibene nezinye izinto ezifana ne-polyethylene (PE) okanye i-polypropylene (PP). Iingqimba zangaphandle zenzelwe ukubonelela ngenkxaso yesakhiwo kunye nokuququzelela ukutywinwa kobushushu, ngelixa i-EVOH layer isebenza njengesithintelo esinamandla ngokuchasene ne-oksijini kunye nezinye iigesi. Olu lungelelwaniso luluncedo kakhulu ekupakisheni iimveliso ezibuthathaka nezitshabalalayo ezinje ngenyama, izinto zobisi, kunye nokutya okuthile okucutshungulweyo okuphakamileyo kumxholo wamafutha, zonke zichaphazeleka kakhulu kwi-oxidation.
Ukupakishwa kokutya okuQinisiweyo8ag
Umzekelo wesicelo se-EVOH sifumaneka kwinyama epakishwe nge-vacuum, indawo apho ukutsha kubaluleke kakhulu kwaye ukonakala kunokubeka ilahleko enkulu yezoqoqosho. Ukuphendula ekunyukeni kwemfuno yabathengi yezisombululo zokupakisha ezizinzileyo kodwa ezisebenza kakhulu, inkampani iye yaphonononga ukusetyenziswa kwee-resin ze-EVOH njengokutshintsha kweengxowa zokufunxa zemveli. Ngokusebenzisa i-EVOH ngaphakathi kwenkqubo ye-multilayer equka i-biodegradable layers yangaphandle, baye bakwazi ukunciphisa inkunkuma yokutya enxulumene nokonakala nge-30%. Ngaphezu koko, le ndlela idibene nemfuno ekhawulezayo yabathengi yokhetho lokupakisha oluhambelana nokusingqongileyo. Eli tyala ligxininisa indima ebini ye-EVOH ekuqiniseni ukhuseleko lwemveliso ngokugcinwa okuphezulu kunye nokuxhasa ukupakishwa okuzinzileyo.

Ngaphaya koko, iinzuzo ze-EVOH zandisa ngaphaya kweenzuzo zayo zobugcisa. Ukutshintshela kwizenzo ezizinzileyo kwishishini lokupakisha lifumana i-EVOH phambili, njengoko ingenalo igalelo ekunciphiseni inkunkuma yokutya kuphela kodwa ihambelana neenjongo ezibanzi zokusingqongileyo ngokwenza ukuba kusetyenziswe iplastiki encinci. Ngaloo ndlela, i-EVOH ixhasa abavelisi ekujonganeni nemingeni yoqoqosho kunye nendalo ngokufanelekileyo.
14 iinxalenye
Ukuqukumbela, ukusebenza kwe-EVOH ekupakishweni kokutya akukho mbuzo. Inika abavelisi ngeendlela eziguquguqukayo zokuphucula ixesha elide lemveliso kunye nokunciphisa amazinga okonakala kakhulu. Njengoko iinkxalabo zozinzo ziqhubeka zisanda kwihlabathi jikelele, kucingelwa ukuba i-EVOH iya kuba yimfuneko kwizisombululo ezingaphezulu komhlaba kwicandelo lokupakisha ukutya. Le nkqubela phambili ilindeleke ukuba ivule indlela yophuhliso olungqamene ngokusondeleyo nokukhula kokuqonda kokusingqongileyo kunye nokunyuka kokukhethwa kwabathengi ukuzinza. Oku kubonwa kwangaphambili kuqinisekisa ukuba ii-resin ze-EVOH ziya kuhlala ziyinxalenye ebalulekileyo ekuguqukeni kobuchwepheshe bokupakisha.