Kev txhawj xeeb thoob ntiaj teb txog cov pa phem yas tau nyob ib puag ncig ntev. Txij xyoo 2021, EU yuav txwv tag nrho txhua yam khoom siv yas uas tuaj yeem tsim los ntawm lwm cov khoom siv xws li cov duab los qhia, suav nrog cov tais diav yas, straws, balloon rods, paj rwb Sticks, txawm tias lub hnab thiab cov ntim sab nrauv ua los ntawm cov yas decomposable.
Txawm tias covuncoated khob khob muaj qee yam kev tiv thaiv kev nkag mus, nws tseem xav tau txheej txheej txheej kom ua tiav lub hom phiaj no thaum nws siv los ua cov khoom kawg xws li tableware. Cov ntaub ntawv pov tseg ntawm lub khob uas yog coated nrog PP lossis PE zaj duab xis ntawm ib lossis ob sab kom ua tau raws li qhov yuav tsum tau ua ntawm cov dej tsis zoo thiab cov roj pov thawj. Qhov kev siv ntawm kev txwv tsis pub siv plastics tau nrawm rau kev txhawb nqa ntawm cov yas tsis muaj txheej txheem. Yog li dab tsi yog qhov kev ua tau zoo ntawm cov yas-dawb txheej khob? Nws puas tuaj yeem hloov pauvPE txheej khob?
Tom qab kev sim thiab kev sib piv, thaum qhov kub ntawm cov txheej uas tsis yog yas nce mus txog 60 degrees Celsius, txheej txheej yuav nplaum ntau dua, thiab cov txheej txheej loj dua, qhov kub thiab txias dua, qhov dej noo ntau dua, thiab pom tseeb dua. qhov teeb meem nplaum. Qee cov txheej txheem uas tsis yog yas muaj cov khoom siv tsis zoo thaum tshav kub kub sealing, txuas ntxiv ua kom lub tshav kub-sealing kub thiab ntev lub sij hawm kub-sealing yuav muaj qee yam cuam tshuam rau lub sealing, tab sis daim ntawv yuav daj thiab nkig thaum rhuab, uas yog. tsis haum.
Tam sim no, qhov teeb meem loj tshaj plaws tau ntsib los ntawm cov yas-dawb coatings ntawmkhob khob yog qhov teeb meem ntawm stickiness thaum rhuab. Lub essence ntawm stickiness yuav tsum yog hais tias lub txheej yog softened los ntawm tshav kub. Tom qab ntawd, ncuav dej npau npau rau hauv lub khob ntawv, thiab cov dej kub kuj tseem yuav soften lub txheej thiab ua kom nws nplaum, uas yuav ua rau tus neeg siv tsis xis nyob, thiab txawm nug txog kev nyab xeeb ntawm cov khob ntawv. Txawm li cas los xij, nce qhov kub ntawm cov txheej txheej yuav ua rau muaj kev cuam tshuam rau nws txoj haujlwm degradation, uas yog lub hom phiaj tseem ceeb ntawm kev ua raws li kev txwv ntawm cov yas.
Post lub sij hawm: Sep-26-2022