Iitreyi ze-CPET zineqondo lokushisa elibanzi ukusuka kwi -40 ° C ukuya +220 ° C, okwenza ukuba zilungele zombini ifriji kunye nokupheka ngokuthe ngqo kwi-oven eshushu okanye i-microwave. Iitreyi zeplastiki ze-CPET zibonelela ngesisombululo sokupakisha esifanelekileyo nesiguquguqukayo kubo bobabini abavelisi bokutya kunye nabathengi, bebenza ukhetho oludumileyo kushishino.
Iitreyi ze-CPET zinenzuzo yokuba zikhuselekile kwi-oveni ephindwe kabini, ezenza zikhuseleke ukuba zisetyenziswe kwii-oveni eziqhelekileyo kunye nee-microwaves. Iitreyi zokutya ze-CPET zinokumelana namaqondo obushushu aphezulu kwaye zigcine imilo yazo, oku kuguquguquka kuluncedo kubenzi bokutya kunye nabathengi njengoko kubonelela ngokulula kunye nokusebenziseka ngokulula.
Iitreyi zeCPET, okanye iitreyi zeCrystalline Polyethylene Terephthalate, luhlobo lokupakisha lokutya olwenziwa kuhlobo oluthile lwemathiriyeli ye-thermoplastic. I-CPET yaziwa ngokuxhathisa kwayo kumaqondo obushushu aphezulu naphantsi, nto leyo eyenza ukuba ibe lukhetho oludumileyo kwizicelo ezahlukeneyo zokupakisha ukutya.
Ewe, iitreyi zeplastiki zeCPET ziyakwazi ukutshiseka. Ziyakwazi ukumelana namaqondo obushushu ukusuka ku-40°C ukuya kuma-220°C (-40°F ukuya ku-428°F), nto leyo evumela ukuba zisetyenziswe kwiioveni zemicrowave, ii-oveni eziqhelekileyo, kwanokugcinwa komkhenkce.
Umahluko omkhulu phakathi kweetreyi ze-CPET kunye ne-PP (i-Polypropylene) i-trays kukumelana nokushisa kunye neempawu zezinto eziphathekayo. Iitreyi ze-CPET ziyakwazi ukumelana nobushushu kwaye zinokusetyenziswa kuzo zombini ii-microwave kunye nee-oveni eziqhelekileyo, ngelixa iitreyi ze-PP ziqhele ukusetyenziselwa izicelo ze-microwave okanye ukugcinwa okubandayo. I-CPET inikezela ngobungqongqo obungcono kunye nokuchasana nokuqhekeka, ngelixa iitreyi zePP zibhetyebhetye kwaye ngamanye amaxesha zingabizi kakhulu.
Iitreyi ze-CPET zisetyenziselwa ukupakishwa kokutya okwahlukeneyo, kubandakanya ukutya okusele kulungiselelwe, iimveliso zokubhaka, ukutya okukhenkcezisiweyo, kunye nezinye izinto ezinokonakala ezifuna ukufudunyezwa kwakhona okanye ukuphekwa kwi-oveni okanye kwi-microwave.
I-CPET kunye ne-PET zizo zombini iindidi ze-polyester, kodwa zineepropati ezahlukeneyo ngenxa yezakhiwo zazo ze-molecular. I-CPET luhlobo lwe-crystalline lwe-PET, olunika ukwanda kokuqina kunye nokuchasana okungcono kumaqondo aphezulu kunye naphantsi. I-PET iqhele ukusetyenziselwa iibhotile zesiselo, izikhongozeli zokutya, kunye nezinye izinto zokupakisha ezingadingi iqondo elifanayo lokunyamezela ubushushu. I-PET ibonakala ngokucacileyo, ngelixa i-CPET ihlala i-opaque okanye i-semi-transparent.