Cov ntaub ntawv tseem ceeb rau cov ntawv kab lis kev cai suav nrog cov khoom siv fiber ntau xws li ntoo, xyoob ntoo, rattan, thiab cog stalks. Kev tsim khoom niaj hnub no feem ntau siv cov ntoo ntoo (xws li cov ntoo coniferous thiab broadleaf), tab sis cov ntawv siv ua los ntawm cov ntawv pov tseg kuj tseem siv tau.
Nyob ntawm cov txheej txheem tsim khoom, cov ntawv kab lis kev cai tuaj yeem siv cov ntoo ntoo ntoo lossis cov fibers rov ua dua tshiab. Cov ntawv kab lis kev cai ua los ntawm cov ntawv pov tseg yog hu ua cov ntawv siv dua tshiab, thiab nws cov ntsiab lus fiber ntau feem ntau yuav tsum ncav cuag ntau dua 50%, muab cov txiaj ntsig zoo ib puag ncig xws li txo qis hav zoov, txuag hluav taws xob, thiab txo cov pa phem.
Ancient papermaking feem ntau siv cov nroj tsuag ntuj fibers xws li hemp, ntoo bark (xws li ntawv mulberry bark), xyoob, thiab rattan. Cov ntaub ntawv sib txawv ua rau muaj cov yam ntxwv ntawm cov ntawv sib txawv; Piv txwv li, daim ntawv hemp muaj qhov toughness siab, thaum daim ntawv xyoob yog tus nqi qis thiab muaj tus cwj pwm zoo.
