Nyiv tau tsim ib hom ntawv ywj pheej uas yuav tuaj yeem ncaj qha rau hauv lub thawv ntim tsis muaj hluavtaws tuaj. Daim ntawv no yog 5-10 npaug ntau tshaj li cov ntawv tsis zoo. Yog siv cov pwm tshwj xeeb pwm, nws tuaj yeem raug nias rau ntau hom duab ntawv ntim. Lub thawv ntim ntawv muaj lub zog ntim cov thawv ntim yas, yuav siv tau rau cov khoom ntim thiab khoom noj khoom haus, thiab lwm yam, tsis yog cov nqi qis xwb tsawg, tab sis kuj tuaj yeem siv tau dua, yuav tsum hloov cov thawv ntim yas ntim.
Nippon Paper, ib lub lag luam Japanese Japanese, tau tsim cov ntawv xov xwm ntawm tob muag nrog cov ntawv muaj roj ua rau cov khoom siv thiab cov khoom npe "Npimold Ntawv". Hom ntawv stamping no tuaj yeem nias ntawv, cov qauv thiab peb cov khoom ntawm qhov nkhaus, zoo ib yam li cov khoom siv yas, nws cov duab hauv cov duab qaum los ua kom zoo dua qub. Zus tau cov khoom no siv tau cov cuab yeej siv tam sim no cov khoom yas, raws li cov tswv yim tsim ntawm molding. Txij li thaum tsis muaj kev xav tau rau cua sov thiab softening ua ntej kev ua, nws muaj peev xwm txhim kho ntau lawm