1. Cov ntawv luam ntawv tsis muaj carbon yog huv thiab huv. Daim ntawv xiav-luam ntawv, uas muaj cov haujlwm zoo sib xws, yog qias neeg ntawm tes thiab khaub ncaws tom qab sau ntawv, thiab xim ntawm daim ntawv tsuas yog xiav. Cov ntawv tsis muaj cov ntawv luam tawm txawv, nws yog CF txheej uas muaj cov neeg tsim xim thiab CB txheej uas muaj cov xim tsim tawm. Thaum sau ntawv quab yuam, cov microcapsules raug crushed, thiab cov xim-tsim tus neeg sawv cev thiab cov xim-tsim tus neeg sawv cev ua rau muaj tshuaj lom neeg los nthuav tawm cov ntawv.
2, Yooj yim khaws cia. Lub sijhawm siv tau ntawm cov ntawv tsis muaj cov pa roj carbon monoxide yog tsib xyoos, thiab nws yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav thiab qhov cua kom deb ntawm cov khoom tawg thiab tawg. Yog tias daim ntawv tsis muaj cov pa roj carbon monoxide yog ntub, nws tsis tuaj yeem qhuav ncaj qha, tab sis nws tuaj yeem maj mam qhuav hauv qhov chaw qhuav.
3. Carbonless luam ntawv nthuav qhia fonts nyob rau hauv ntau yam xim. Cov ntawv luam thawj tsuas tuaj yeem qhia ib xim, thiab kev sau ntawv ntawm cov ntawv tsis muaj carbonless tuaj yeem pom cov txiv kab ntxwv, dub, liab, xiav, daj thiab lwm yam xim.
