1. Khoom noj khoom haus qib
Cov qauv ntawv pov thawj: Xyuas kom tseeb tias cov ntaub ntawv siv tau ntawv pov thawj los ntawm cov koom haum tso cai xws li FDA (US Food and Drug Administration) thiab EU (European Union). Cov ntawv pov thawj no qhia txog qhov tsim nyog thiab ua raws li cov khoom siv rau kev nyab xeeb khoom noj. Piv txwv li, qee cov ntaub ntawv yuav tso tawm cov khoom tsis zoo nyob rau hauv qee yam mob, yog li nws yog ib qho tseem ceeb kom ua raws li cov qauv no nruj me ntsis.
Cov khoom siv: Cov khoom sib txawv ntawm cov yas muaj cov yam ntxwv sib txawv thiab tsim nyog rau kev ntim khoom sib txawv. Piv txwv li:
LDPE (tsawg-density polyethylene): mos, pob tshab, haum rau ntim cov khoom noj qhuav xws li khoom qab zib thiab txiv hmab txiv ntoo qhuav.
HDPE (high-density polyethylene): tawv, ruaj, thiab feem ntau siv los ntim cov khoom siv mis thiab kua.
PP (polypropylene): zoo tiv thaiv tshav kub, haum rau microwave-rhuab ntim zaub mov.
2. Tsis muaj tshuaj lom thiab tsis muaj mob
Additives: Thaum lub sij hawm tsim cov khoom, qee cov yas yuav muaj cov yas yas lossis lwm yam tshuaj ntxiv, uas tuaj yeem txav mus rau hauv cov zaub mov hauv qhov kub thiab txias los yog kev sib cuag nrog cov zaub mov mus ntev. Xaiv cov khoom tsis muaj tshuaj lom uas tau raug kuaj nruj kom ntseeg tau tias muaj kev nyab xeeb ntawm cov zaub mov.
Cov ntxhiab tsw thiab xim: Qee cov yas yuav siv cov dyes lossis fragrances thaum lub sijhawm tsim khoom, uas tuaj yeem cuam tshuam qhov tsw thiab xim ntawm cov zaub mov. Yog li ntawd, nws yog qhov kev xaiv zoo dua los xaiv cov ntaub ntawv pob tshab lossis tsis muaj ntxhiab tsw.
3. Lub cev muaj zog
Kub-resistant: Thaum xaiv cov khoom ntim, xav txog kev khaws cia thiab ua noj ua haus txheej txheem. Piv txwv li, cov hnab ntim khoom noj khov yuav tsum muaj peev xwm tiv taus qhov kub thiab txias, thaum lub microwave-rhuab ntim zaub mov yuav tsum tiv taus qhov kub thiab txias.
Barrier Properties: Zoo roj thiab dej vapor barrier khoom yog ib qho tseem ceeb hauv kev ua kom cov zaub mov tshiab. Piv txwv li, lub tshuab nqus tsev ntim khoom feem ntau yuav tsum tau siv cov khoom siv nrog cov khoom thaiv zoo kom txo tau cov pa oxygen infiltration thiab txuas lub txee lub neej ntawm cov zaub mov.
4. Kev tiv thaiv ib puag ncig
Recyclability: Nrog kev nce hauv kev paub txog ib puag ncig, ntau tus neeg siv khoom siv ntau dua thiab ntau dua rau kev rov ua dua tshiab ntawm ntim. Xaiv cov khoom siv rov ua dua tshiab tuaj yeem txo qhov hnyav ntawm ib puag ncig thiab txhawb kev txhim kho kom ruaj khov.
Bio-based cov ntaub ntawv: Kev siv cov khoom siv bio-based plastics (xws li PLA, PHA) tuaj yeem tsis tsuas yog txo qis kev cia siab ntawm cov khoom siv roj av, tab sis kuj ua tiav biodegradation nyob rau hauv qee yam kev mob, txo qhov cuam tshuam rau ib puag ncig.
5. Kev siv tau
Siv: Xaiv cov khoom tsim nyog raws li cov yam ntxwv ntawm cov khoom noj sib txawv. Piv txwv li, cov khoom noj uas muaj dej noo (xws li txiv hmab txiv ntoo thiab zaub tshiab) yuav xav tau kev tiv thaiv zoo dua thiab kev sib khi, thaum cov khoom noj qhuav tuaj yeem siv cov khoom sib zog.
Customization: Rau cov ntim khoom noj nrog cov kev xav tau tshwj xeeb, koj tuaj yeem xav txog cov ntaub ntawv kev cai, xws li cov hnab ntim khoom UV-resistant, uas yog tsim rau ntim cov khoom noj uas tsis zoo thiab ua rau lub neej ntev.
6. Ntim tsim
Sealing: Xaiv cov ntim khoom zoo, xws li hnab ziplock, hnab zipper, thiab lwm yam, tuaj yeem tiv thaiv huab cua thiab noo noo los ntawm kev nkag mus thiab tswj cov khoom noj tshiab.
Transparency: Pob tshab ntim tuaj yeem ua rau cov neeg siv khoom muaj kev ntseeg siab thiab ua kom yooj yim saib cov ntsiab lus, yog li kev muag khoom nce ntxiv. Transparency yog qhov tseem ceeb tshwj xeeb rau cov khoom lag luam (xws li khoom qab zib, khoom noj txom ncauj, thiab lwm yam).
Thaum xaiv cov hnab yas ntim khoom noj, koj yuav tsum xav txog ntau yam xws li kev nyab xeeb ntawm cov khoom, lub cev, cov yam ntxwv ib puag ncig thiab kev siv tau. Los ntawm kev xaiv cov ntaub ntawv zoo, koj tuaj yeem tiv thaiv cov zaub mov zoo, txhim kho kev paub ntawm cov neeg siv khoom, thiab txhawb kev tiv thaiv ib puag ncig thiab kev tsim kho kom ruaj khov. Cov neeg siv khoom txaus siab rau kev nyab xeeb ntawm zaub mov thiab kev tiv thaiv ib puag ncig kuj tau ua rau cov tuam txhab tsim kho tshiab thiab txhim kho kev ntim khoom thiab xaiv cov khoom siv.
