Titreyi ta { CPET , kumbe titreyi ta Crystalline Polyethylene Terephthalate, i muxaka wa ku paka swakudya leswi endliweke kusuka eka muxaka wokarhi wa swilo swa thermoplastic. CPET yitiveka hiku tiya swinene eka mahiselo yale henhla nale hansi, leswi endlaka leswaku yiva nhlawulo lowu dumeke eka switirhisiwa swohambana hambana swo paka swakudya.

A Ina, CPET titreyi ta pulasitiki ta ovenable. Tikota ku tiyisela mahiselo kusuka eka -40°C kuya eka 220°C (-40°F kuya eka 428°F), leswi pfumelelaka kutirhisiwa eka ti microwave ovens, ti ovens leti tolovelekeke, hambi kuri eka vuhlayiselo bya ayisi.

A Ku hambana lokukulu exikarhi ka titreyi ta CPET na titreyi ta PP (Polypropylene) i ku tiya ka tona ka ku hisa na swivumbeko swa swilo leswi tirhisiwaka. CPET ti trays ti kondzelela ku hisa naswona tinga tirhisiwa eka ti microwave na ti ovens ta ntolovelo, kasi ti trays ta PP hi ntolovelo titirhisiwa eka switirhisiwa swa microwave kumbe vuhlayiselo byo titimela. CPET yinyika ku tiya ko antswa xikan’we naku lwisana na ku pandzeka, kasi ti PP trays ti olova swinene naswona minkarhi yin’wana tinga durha ngopfu.

Titreyi ta { CPET ti tirhisiwa eka switirhisiwa swohambana hambana swo paka swakudya, kukatsa na swakudya leswi lulameleke, switirhisiwa swo baka, swakudya leswinga titimela, na swin’wana leswi onhakaka leswi lavaka ku hisiwa nakambe kumbe ku swekiwa eka oven kumbe microwave.

A CPET na PET hivumbirhi bya tona i tinxaka ta ti polyesters, kambe tina swihlawulekisi swohambana hikokwalaho ka swivumbeko swa tona swa molecule. CPET i xivumbeko xa crystalline xa PET , lexi nyikaka ku engeteleka ka ku tiya na ku tiya ko antswa eka mahiselo yale henhla na yale hansi. PET hi ntolovelo yi tirhisiwa eka mabodlhela ya swakunwa, swibye swa swakudya, na switirhisiwa swin’wana swo paka leswi nga laviki mpimo lowu fanaka wa ku tiyisela mahiselo. PET yi vonaka ngopfu, kasi CPET hi ntolovelo yi vonaka kahle kumbe yi le rivaleni.