Niaj hnub no, cov ntaub ntawv pov tseg uas sawv cev los ntawm cov khob ntawv tau nkag mus rau tib neeg lub neej, thiab nws cov teeb meem kev nyab xeeb kuj tau nyiam ntau yam.Lub xeev tau teev tseg tias cov khob ntawv pov tseg tsis tuaj yeem siv cov ntawv pov tseg rov ua dua li cov khoom siv raw, thiab tsis tuaj yeem ntxiv cov tshuaj fluorescent.Txawm li cas los xij, ntau lub khob ntawv siv cov ntawv siv los ua cov khoom siv raw, thiab ntxiv ntau cov tshuaj fluorescent los ua cov xim dawb, thiab tom qab ntawd ntxiv qee cov calcium carbonate thiab talc kom nws qhov hnyav ntxiv. lub khob ntawv yog npog nrog ib txheej ntawm cov ntawv coated.Raws li txoj cai, tus qauv polyethylene yuav tsum raug xaiv, tab sis qee lub tuam txhab siv cov khoom siv polyethylene lossis cov yas pov tseg rau cov ntim tshuaj.
Peb tuaj yeem paub qhov zoo thiab qhov tsis zoo ntawm cov khob ntawv los ntawm plaub kauj ruam hauv qab no, thiaj li xaiv cov khob ntawv zoo.
Thawj kauj ruam yog "saib".Thaum xaiv lub khob ntawv pov tseg, tsis txhob saib cov xim ntawm lub khob ntawv xwb.Qee lub khob khob cov tuam txhab tau ntxiv ntau cov tshuaj fluorescent whitening agents txhawm rau ua kom lub khob zoo dua.Thaum cov tshuaj phem no nkag mus rau tib neeg lub cev, lawv yuav dhau los ua cov carcinogens.Cov kws tshaj lij hais tias thaum tib neeg xaiv lub khob ntawv, nws yog qhov zoo tshaj los saib hauv qab lub teeb.Yog tias daim ntawv khob pom xiav nyob rau hauv lub teeb fluorescent, nws ua pov thawj tias tus neeg sawv cev fluorescent tshaj tus qauv, thiab cov neeg siv khoom yuav tsum siv ceev faj.
Qhov thib ob kauj ruam yog "pinch".Yog hais tias lub khob lub cev yog mos thiab tsis ruaj, yuav tsum ceev faj kom nws yuav xau.Nws yog ib qho tsim nyog los xaiv cov khob ntawv nrog cov phab ntsa tuab thiab siab hardness.Tom qab nchuav dej los yog dej haus rau hauv cov ntawv khob uas tsis tshua muaj zog, lub khob lub cev yuav raug deformed, uas yuav cuam tshuam rau kev siv.Cov kws tshaj lij tau taw qhia tias feem ntau cov khob ntawv zoo tuaj yeem tuav dej rau 72 teev yam tsis muaj qhov xau, thaum lub khob ntawv tsis zoo yuav tso dej rau ib nrab teev.
Qhov thib peb kauj ruam yog "tsim".Yog tias cov xim ntawm lub khob phab ntsa yog qhov zoo nkauj, ceev faj ntawm tus cwj mem lom.Cov kws tshaj lij saib xyuas kev ua tau zoo tau taw qhia tias cov khob ntawv feem ntau muab tso ua ke.Yog tias lawv ntub los yog muaj kab mob, pwm yuav tsis tsim nyog, yog li cov khob ntawv ntub dej yuav tsum tsis txhob siv.Tsis tas li ntawd, qee lub khob ntawv yuav raug luam tawm nrog cov xim zoo nkauj thiab cov lus.Thaum cov ntawv khob tau muab tso ua ke, tus number case nyob rau sab nraud ntawm lub khob ntawv yuav ua rau muaj kev cuam tshuam rau sab hauv ntawm daim ntawv khob qhwv rau sab nraud.Tus number case muaj benzene thiab toluene, uas ua rau muaj kev phom sij rau kev noj qab haus huv, yog li nws yog qhov zoo tshaj los yuav cov ntawv khob uas tsis muaj tus cwj mem luam tawm ntawm txheej txheej lossis nrog luam ntawv tsawg dua.
Kauj ruam plaub yog "siv".Lub luag haujlwm loj ntawm cov khob ntawv yog tuav cov dej haus, xws li cov dej qab zib carbonated, kas fes, mis nyuj, dej qab zib, thiab lwm yam. Cov khob ntawv khob tuaj yeem muab faib ua khob txias thiab khob kub.Cov khob txias yog siv los tuav cov dej txias, xws li cov dej haus carbonated, iced kas fes, thiab lwm yam. Cov khob kub yog siv los tuav cov dej kub xws li kas fes, tshuaj yej dub, thiab lwm yam. Cov kws tshaj lij taw qhia tias cov khob ntawv uas peb feem ntau siv tau feem ntau yog muab faib ua ob hom, khob dej txias thiab khob dej kub.
Peb lub tuam txhab tau cog lus rau kev tsim khoom thiab muag khoom ntawm cov ntaub ntawv.Cov txheej txheem ua tiav ntawm kev tshawb fawb thiab kev tsim khoom lag luam thiab kev saib xyuas zoo thiab kev tswj hwm tau raug tsim, uas yog tswj nruj me ntsis los ntawm kev xaiv cov khoom siv raw mus rau kev tsim khoom noj khoom haus-qib plua plav-dawb rhiav.Yog tias koj txaus siab rau peb cov khoom, thov hu rau peb.
Post lub sij hawm: Mar-04-2022