Tam sim no, qhov zoo ntawm cov khob ntawv pov tseg ntawm kev ua lag luam tsis sib xws, qhov kev nyab xeeb zais tau ntau dua.Qee cov neeg tsim cov khob ntawv ntxiv cov fluorescent brighteners kom lawv saib dawb.Cov tshuaj fluorescent ua rau cov hlwb hloov pauv thiab ua rau muaj peev xwm carcinogenic thaum lawv nkag mus rau hauv lub cev.Txhawm rau ua kom lub khob dej pov thawj, sab hauv lub khob yog coated nrog polyethylene dej pov thawj zaj duab xis.Polyethylene yog cov tshuaj muaj kev nyab xeeb tshaj plaws hauv kev ua zaub mov, tab sis yog tias cov khoom xaiv tsis zoo lossis cov txheej txheem ua tsis tau raws li tus qauv, carbonyl compounds yuav raug oxidized thaum lub sij hawm melting los yog txheej ntawm polyethylene rau hauv lub khob ntawv, thiab carbonyl compounds tsis volatilize. yooj yim ntawm chav tsev kub, tab sis tej zaum yuav evaporate thaum lub khob ntawv yog ntim nrog dej kub, yog li cov neeg tuaj yeem hnov nws.Txawm hais tias tsis muaj kev tshawb fawb los xyuas kom meej tias cov carbonyl tebchaw tso tawm los ntawm cov ntawv khob yuav ua rau muaj kev phom sij rau tib neeg lub cev, tab sis los ntawm kev tshawb fawb dav dav, kev noj cov organic sib txuas mus ntev, nws yuav tsum muaj kev phom sij rau tib neeg lub cev.Qhov kev txhawj xeeb ntxiv yog tias qee lub khob ntawv tsis zoo siv cov polyethylene rov ua dua tshiab, hauv cov txheej txheem rov ua dua tshiab yuav muaj kev hloov pauv, ua rau muaj ntau yam teeb meem, hauv kev siv dej tsiv teb tsaws yooj yim dua.Lub xeev txwv tsis pub siv cov polyethylene regenerated rau hauv cov zaub mov ntim, tab sis vim nws cov nqi qis, qee lub tsev me me kom txuag tau cov nqi, tseem siv tsis raug cai.
Yuav kom ua tiav cov ntawv khob hauv kev tsim cov dej-tiv taus, yuav tau coated nrog ib txheej ntawm polyethylene dej-resistant zaj duab xis rau ntawm phab ntsa sab hauv.Polyethylene yog ib qho tshuaj muaj kev nyab xeeb hauv kev ua zaub mov, nws nyuaj rau yaj hauv dej, tsis muaj tshuaj lom, tsis qab.Tab sis yog tias cov khoom xaiv tsis zoo, lossis kev siv thev naus laus zis, hauv polyethylene kub yaj lossis txheej txheej rau hauv khob txheej txheem, tej zaum yuav oxidized rau carbonyl tebchaw.Carbonyl tebchaw tsis evaporate yooj yim ntawm chav tsev kub, tab sis lawv ua thaum ntawv khob ntim nrog dej kub, yog li cov neeg hnov qab lom zem.Ntev mus ntev ntawm cov organic compound no ua rau muaj kev phom sij rau kev noj qab haus huv.Qee lub khob ntawv tsis zoo yog ua los ntawm cov khoom siv polyethylene, uas yuav tsim muaj ntau yam teeb meem hauv cov txheej txheem rov ua dua.Lub xeev txwv tsis pub siv cov polyethylene regenerated rau hauv cov zaub mov ntim, tab sis vim nws cov nqi qis, qee lub tsev me me kom txuag tau cov nqi, tseem siv tsis raug cai.Tam sim no, lub teb chaws tus qauv rau qhov zoo ntawm cov ntawv khob tsuas yog yuav tsum tau kuaj rau cov kab mob, tab sis tsis muaj kev sim tshuaj, vim tias qhov kev sim no nyuaj heev thiab nyuaj ua.Qee lub khob ntawv vim qhov tsis zoo ntawm cov ntaub so ntswg, cov khoom dawb rau daim duab ntawm qhov sib ntxiv ntawm cov tshuaj fluorescent loj, uas muaj kev pheej hmoo mob qog noj ntshav.Nws tau hais tias cov khob ntawv pov tseg tsis tuaj yeem siv ntau dua, xws li qhov zoo tshaj plaws nrog dej txias, kom txo tau cov volatilization ntawm cov tshuaj phem.
Post lub sij hawm: May-24-2023