Lub luag haujlwm tseem ceeb ntawm txhua qhov zoo sawv ntsug- lub hnab ntim khoom yog los tiv thaiv yam khoom sab hauv. Peb cov qauv BOPP / VMPET / PE ua tiav qhov no los ntawm cov yam ntxwv tseem ceeb: ib txheej txheej txhuas siv rau VMPET txheej. Qhov no metallized barrier tsis yog rau kev ua yeeb yam xwb; nws yog lub siab - kev ua tau zoo tiv thaiv peb cov yeeb ncuab tseem ceeb ntawm cov khoom tshiab: oxygen, noo noo, thiab lub teeb.
Oxygen yog thawj qhov ua rau lwj. Nws oxidizes cov rog, ua rau rancidity hauv txiv ntseej thiab kas fes, thiab degrades cov khoom noj muaj txiaj ntsig ntawm cov khoom noj qhuav. Peb cov aluminium-coated VMPET txheej muab qhov tshwj xeeb oxygen barrier, txo tus nqi xa mus rau zero -zero. Qhov no ua rau lub neej txee ntev heev piv rau cov yeeb yaj kiab ntshiab lossis tsis yog- barrier.
Moisture yog lwm yam kev hem thawj, ua rau clumping nyob rau hauv hmoov, poob ntawm crispness nyob rau hauv cov khoom noj txom ncauj, thiab pwm loj hlob nyob rau hauv qhuav khoom. Aluminium txheej kuj yog ib qho impermeable barrier rau dej vapor, tswj cov khoom npaj kom zoo nkauj thiab kev nyab xeeb.
Thaum kawg, lub teeb, tshwj xeeb tshaj yog UV hluav taws xob, tuaj yeem ploj xim, rhuav tshem cov vitamins, thiab ua kom cov tshuaj lom neeg muaj zog uas hloov cov tsw. Lub opaque, metallized nto thaiv lub teeb tag, muab kev tiv thaiv tag nrho. Rau kas fes, qhov no khaws cov roj tsw qab uas txhais tau tias nws cov aroma. Rau cov khoom noj qhuav, nws tswj cov xim ntuj thiab cov khoom noj khoom haus profile.
Los ntawm kev xaiv ib lub hnab uas muaj tseeb aluminium-coated barrier, koj tsis yog ntim khoom xwb; koj yog engineering nws lub neej ntev thiab ua kom nws ncav cuag cov neeg siv khoom zoo.