EVA cov ntaub ntawv muaj ntau heev, thiab feem ntau yog tsim nyog rau kev ua khau nkaus xwb, nrog khau khiab ua ib qho ntawm lawv. Yog li, ua EVA khau khiab tsw? Yog eva cov ntaub ntawv yas lossis ua npuas dej?
Puas yog EVA cov khau ntaub hnov tsw?
Cov khoom siv eva cov khau khiab feem ntau tsis yog cov tshuaj tiv thaiv lossis cov pwm, ua kom muaj zog, ua kom muaj zog, yog li txo cov kabmob ntawm cov ntxhiab tsw thiab ntxhiab tsw. Ntxiv rau, cov ntaub ntawv pov thawj khoom siv tau yooj yim ntxuav thiab qhuav, tsuas yog so lawv nrog dej yam tsis muaj kev txhawj xeeb txog kev tawm tsam.
Txawm li cas los xij, yog tias EVA cov khau ntaub ntawv tsis huv lossis qhuav ntev, lawv kuj tseem tuaj yeem tsim cov ntxhiab tsw lossis tsw. Yog li ntawd, nws raug nquahu kom tsis tu ncua huv thiab qhuav EVA cov khau khiab kom tswj lawv txoj kev nyiam huv thiab qhuav. Yog tias muaj ntxhiab tsw lossis tsw tau tshwm sim, qee cov neeg sawv cev lossis cov deodorants tuaj yeem siv rau kev tu thiab ua rau dej. Txawm li cas los xij, nws yuav tsum raug sau tseg kom tsis txhob siv cov neeg ntxuav lossis cov deodorants kom tsis txhob muaj kev puas tsuaj rau EVA cov ntaub ntawv lossis cuam tshuam rau kev noj qab haus huv.
Hauv ntej, EVA khau khiab feem ntau yog tsis muaj ntxhiab, tab sis yog tias tsis nquag ntxuav thiab qhuav, lawv kuj tseem tuaj yeem tsim cov ntxhiab tsw thiab cov ntxhiab tsw. Yog li ntawd, nws raug nquahu tias cov neeg siv khoom xaiv cov khoom lag luam zoo thiab yooj yim thaum cov khau khiab EMA, thiab xyuam xim rau kev tu kom huv si thiab kev ziab khaub ncaws kom huv thiab huv si.
Puas yog Eva ua los ntawm cov yas lossis ua npuas dej?
Cov khoom eva tsis yog cov yas tsis ua npuas ncauj. Nws yog cov khoom siv hluavtaws tshwj xeeb nrog cov yam ntxwv mel ntawm cov yas thiab ua npuas ncauj. Cov khoom siv eva yog cov copolymerized los ntawm ethylene thiab vinyl acetate, uas tau muaj siab, zoo li lub teeb thiab poob siab tsis zoo ntawm cov khoom siv ua npuas ncauj.
Cov ntaub ntawv eva muaj ntau yam ntxwv zoo, noo noo-ntawv pov thawj, lub suab rwb thaiv tsev, hnab, khoom ua si, khoom siv hauv tsev , thiab yog li ntawd.
Nyob rau hauv daim teb ntawm cov ntaub ntawv khau xws li khau khiab, eva khoom tau dhau los ua ib qho ntawm cov khoom nrov, xis, ruaj khov, thiab yooj yim los ntxuav cov yam ntxwv kom huv. EVA khau khiab muaj kev ntxhib los mos, xis nyob, tiv thaiv kom huv thiab qhuav yooj yim heev los ntawm cov neeg siv khoom.
Hauv ib lo lus, EVA cov khoom tsis yog cov yas tsis ua npuas ncauj. Nws yog cov khoom siv hluavtaws nrog cov yam ntxwv mel ntawm cov yas thiab ua npuas ncauj. Nws muaj ntau yam ntxwv zoo heev thiab yog siv dav hauv ntau thaj teb.
Lub Sijhawm Post: Lub Tsib Hlis-04-2023
