Cov yeeb yaj kiab yas tuaj nyob rau hauv ntau hom, txhua tus muaj nws tus yam ntxwv tshwj xeeb. Cov yeeb yaj kiab no txawv ntawm lawv lub peev xwm tiv taus ya raws, huab cua, roj, cua sov, thiab ntau yam khoom. Nov yog qee qhov sib txawv thiab tshwj xeeb ntawm ntau yam yeeb yaj kiab yas:
1. Moisture Barrier: Qee cov yeeb yaj kiab yas muaj cov khoom tiv thaiv zoo heev, uas ua rau lawv zoo tagnrho rau cov khoom noj, tshuaj, thiab lwm yam khoom uas yuav tsum tau qhuav. Cov no suav nrog cov yeeb yaj kiab ua los ntawm polyethylene terephthalate (PET), polypropylene (PP), thiab ethylene-vinyl cawv (EVOH).
2. Cua Barrier: Qee cov yeeb yaj kiab tau tsim tshwj xeeb los ua kom huab cua tawm, xa cov pa tiv thaiv kev tiv thaiv rau cov khoom noj xws li khoom noj txom ncauj, kas fes, txiv ntseej, thiab cheese. Oxygen-sensitive cov khoom muaj kev tiv thaiv los ntawm kev ua tsis taus pa los yog poob tsw. Cov yeeb yaj kiab uas muab kev tiv thaiv huab cua zoo tshaj plaws suav nrog cov ua los ntawm PET, PP, thiab EVOH.
3. Roj Barrier: Cov yeeb yaj kiab uas muaj cov khoom siv roj zoo heev tuaj yeem tiv thaiv cov khoom los ntawm kev sib kis thiab kev puas tsuaj. Cov no suav nrog cov yeeb yaj kiab ua los ntawm polyester (PET), polyethylene (PE), thiab polyamide (PA).
4. Lub zog tensile siab: Thaum ib zaj duab xis raug nro, nws yuav tsum nyob twj ywm tsis muaj kev tawg lossis ncab. Cov yeeb yaj kiab uas muaj zog tensile siab muaj xws li cov khoom ua los ntawm polyester (PET), polyethylene (PE), thiab polypropylene (PP).
5. Kev kub siab ua haujlwm: Qee cov yeeb yaj kiab tuaj yeem tiv taus qhov kub siab txog 400 degree F. Cov no suav nrog cov yeeb yaj kiab ua los ntawm polyimide, polyetherimide, thiab polyamide.
6. Tsawg-kub tsis kam: Cov yeeb yaj kiab uas tuaj yeem tiv taus qhov kub thiab txias tuaj yeem siv rau ntim khoom noj khov, khoom siv kho mob, thiab lwm yam kev siv. Cov no suav nrog cov yeeb yaj kiab ua los ntawm polyethylene (PE), polypropylene (PP), thiab ethylene vinyl acetate (EVA).
7. Luam tau: Cov yeeb yaj kiab uas tuaj yeem luam tawm yog qhov zoo tshaj plaws rau kev sau npe, cim npe, thiab cov qauv ntim khoom. Cov ntawv luam tawm muaj xws li cov khoom ua los ntawm polyester (PET), polypropylene (PP), thiab biaxially-oriented polypropylene (BOPP).
8. Thaum tshav kub kub sealable: Qee cov yeeb yaj kiab tuaj yeem ua kom sov tau kaw kom muaj kev sib raug zoo ntawm cov pob khoom. Cov no suav nrog cov yeeb yaj kiab ua los ntawm polyethylene (PE), polypropylene (PP), thiab coextruded lossis laminated qauv.
Hauv kev xaus, cov yeeb yaj kiab yas yog qhov tseem ceeb ntawm kev ntim khoom niaj hnub, thiab txhua hom muaj nws cov yam ntxwv tshwj xeeb thiab muaj peev xwm. Los ntawm kev nkag siab qhov sib txawv ntawm cov yeeb yaj kiab no, cov neeg siv tuaj yeem xaiv cov ntaub ntawv tsim nyog tshaj plaws rau lawv cov kev xav tau.