Qhov tseeb, tawm hauv lub cim yog hu ua luam ntawv, thiab siv tus cwj mem yog hu ua txhuam. Kev siv txhuam hniav los siv tus cwj mem rau lwm yam khoom thiab tawm ntawm lub cim yog hu ua luam ntawv. Hauv luv luv, luam ntawv yog kev lag luam ntawm kev tsim cov ntaub ntawv luam tawm. Kev tsim cov ntaub ntawv luam tawm zoo ib yam li cov txheej txheem ntawm stamping. Ua ntej, ib lub stamp (phaj) yog carved, ces tus number case yog siv rau lub stamp (phaj), thiab thaum kawg, tus number case yog pauv mus rau ib tug substrate xws li ntawv, txhob lo lo ntxhuav, los yog tawv, yog li tsim ib cov khoom luam tawm.
(Duab ntawm bark ntaub printing)
Los ntawm kev xav txog kev tshawb fawb, txhua qhov cim tseg rau ntawm ib qho khoom (nqaim txhais, tshwj xeeb ntawm daim ntawv), qhov twg lub cim (tom qab tau tsim dua tshiab) pom lossis nqus lub teeb, thiab pom los ntawm tib neeg lub qhov muag los ntawm lub paj hlwb, hu ua luam ntawv.
Los ntawm kev xav txog kab lis kev cai, luam ntawv yog ib txoj hauv kev nthuav tawm thiab nthuav tawm tib neeg txoj kev xav. Nyob rau hauv Tuam Tshoj thaum ub, luam ntawv koom nrog siv tus cwj mem rau lub phaj luam ntawv nrog txhuam, muab ntawv tso rau saum, thiab maj mam txhuam cov ntawv rov qab nrog lwm txhuam kom qhuav. Cov cim uas tau tsa, thim rov qab ntawm lub phaj tau raug xa mus rau hauv daim ntawv raws li pem hauv ntej- cov cim ntsej muag. Vim tias txhua tus txhuam txhuam tau tsim cov ntawv luam tawm, nws hu ua luam ntawv.
Feem ntau hais lus, luam ntawv yog txheej txheem kev lag luam uas siv cov txheej txheem ncaj qha lossis tsis ncaj los tsim lub phaj luam ntawv los ntawm cov duab qub lossis cov ntawv nyeem, siv tus cwj mem rau lub phaj, thiab tom qab ntawd siv lub zog los hloov tus number case rau ntawv lossis lwm yam luam ntawv substrates kom sai, loj luam tawm.
