Niaj hnub no, ntau lub tshuab ua hluav taws xob siv cov hnab yas ziplock. Lub hnab ntim khoom no yog ceev heev thiab siv tau yooj yim, thiab tuaj yeem tuav ntau hom khoom. Feem ntau, lub hnab ziplock tuaj yeem siv los khaws khaub ncaws thiab khoom noj.
Muaj ntau qhov ntau thiab tsawg ntawm ziplock hnab. Hauv kev xaiv, nws yog ib qho tsim nyog yuav tsum paub qhov txawv ntawm cov hnab ziplock kom ua tiav lub hom phiaj ntawm daim ntawv thov. Hauv cov txheej txheem ntawm kev yuav cov hnab ziplock, nws tuaj yeem muab faib ua ob pawg. Ib qho tsis muaj tshuaj lom, thiab vim qhov teeb meem ntawm kev xaiv cov khoom siv, kuj tseem muaj qee lub hnab Ziplock rau cov khoom phom sij. Cov hnab ziplock muaj kev nyab xeeb feem ntau yog ua los ntawm cov ntaub ntawv polyethylene, thiab polypropylene thiab lwm yam ntaub ntawv raw tau ntxiv thaum ua. Cov khoom siv raw no ruaj khov hauv kev ua haujlwm thiab yuav tsis cuam tshuam rau tib neeg lub cev tom qab ua tiav. Lawv yog cov hnab ntim khoom zoo. Kuj tseem muaj lub hnab ziplock ua los ntawm vinyl chloride. Lub hnab ziplock no tsis tuaj yeem siv rau zaub mov, tab sis tsuas yog siv tau raws li lub hnab ntim khoom.
Tau kawg, raws li qhov loj thiab tsim cov nyhuv ntawm lub hnab ziplock, kuj tseem muaj ntau cov qauv kev faib tawm rau lub hnab ziplock, yog li nws yuav tsum tau them sai sai rau hauv cov txheej txheem ntawm kev siv lub hnab ziplock.
