Ntim yob zaj duab xis feem ntau yog tsim los ntawm cov khoom sib xyaw ua los ntawm ntau yam ntaub ntawv polymer; kev sib xyaw ua ke ncaj qha txiav txim siab cov khoom xws li kev ua haujlwm tsis zoo, lub zog, thiab kev tsim nyog rau kev siv, tso cai rau kev hloov kho raws li cov khoom xav tau.
Polyethylene (PE) yog cov khoom siv tseem ceeb; muaj nuj nqis rau nws qhov yooj yim thiab tus nqi qis, nws feem ntau siv los ua ib sab hauv lossis cua sov- txheej sealing thiab haum rau ntim cov khoom noj khoom haus dav dav thiab cov tshuaj hauv tsev. Polypropylene (PP), ntawm qhov tod tes, muaj kev nruj nruj thiab ua haujlwm kub, ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau cov qauv nruj lossis siab - kub sealing.
Polyester (PET) tau muab tso ua ke thaum yuav tsum muaj kev cuam tshuam ntau dua. Paub txog nws lub zog siab thiab kev luam tawm zoo heev, PET feem ntau ua haujlwm raws li txheej txheej txheej los txhim kho kev puas tsuaj tag nrho thiab pom kev pom.
Rau cov khoom uas xav tau kev tiv thaiv zoo tshaj ntawm cov dej noo thiab oxidation, cov qauv siv cov ntawv txhuas (AL) los yog metallized zaj duab xis yog siv. Aluminium ntawv ci muab kev tiv thaiv zoo tiv thaiv lub teeb, oxygen, thiab noo noo, ua rau nws muaj kev xaiv rau ntim kas fes, tshuaj, thiab khoom noj khoom haus zoo.
Cov yeeb yaj kiab tshwj xeeb kuj tseem tuaj yeem suav nrog nylon (PA) txhawm rau txhim kho puncture tsis kam lossis siv mono-cov khoom siv los ua kom tau raws li cov qauv kev ruaj ntseg thiab rov ua dua tshiab. Zuag qhia tag nrho, cov ntaub ntawv muaj pes tsawg leeg muaj kev hloov pauv tau zoo, ua rau ntau yam - txheej txheej tsim thiab kev ua tau zoo ntawm kev ua tau zoo raws li cov khoom xav tau tshwj xeeb.