Kev luam ntawv phaj tooj liab thiab kev luam ntawv offset yog ob txoj kev sib txawv siv hauv kev lag luam luam ntawv. Txawm hais tias ob txoj kev ua haujlwm pab lub hom phiaj ntawm kev rov ua cov duab rau ntawm ntau qhov chaw, lawv sib txawv ntawm cov txheej txheem, cov ntaub ntawv siv, thiab cov txiaj ntsig kawg. Kev nkag siab txog qhov sib txawv ntawm ob txoj kev no tuaj yeem pab koj txiav txim siab txog qhov kev xaiv twg haum rau koj cov kev xav tau zoo tshaj plaws.
Kev luam ntawv phaj tooj liab, tseem hu ua kev luam ntawv intaglio lossis engraving, yog ib txoj kev siv ib txwm muaj uas tau siv ntau pua xyoo. Nws suav nrog kev kos duab rau ntawm phaj tooj liab los ntawm tes lossis siv cov thev naus laus zis niaj hnub. Tom qab ntawd daim phaj kos duab raug inked, thiab cov kua ntau dhau raug so tawm, tawm hauv daim duab tsuas yog nyob rau hauv qhov chaw etched. Daim phaj raug nias rau ntawm daim ntawv ntub dej, thiab daim duab raug xa mus rau nws, ua rau muaj kev luam ntawv nplua nuj thiab ntxaws ntxaws. Txoj kev no tau txais kev hwm heev rau nws lub peev xwm los tsim cov ntawv luam tawm tob, textured, thiab kos duab.
Ntawm qhov tod tes, kev luam ntawv offset yog ib txoj kev niaj hnub thiab siv dav dua. Nws cuam tshuam nrog kev hloov daim duab los ntawm lub phaj hlau mus rau ntawm daim pam roj hmab, thiab tom qab ntawd mus rau cov khoom xav tau, xws li ntawv lossis cardboard. Daim duab raug etched ua ntej rau ntawm lub phaj hlau siv cov txheej txheem photochemical lossis lub khoos phis tawj-rau-phaj system. Lub phaj tom qab ntawd raug inked, thiab daim duab raug xa mus rau ntawm daim pam roj hmab. Thaum kawg, daim duab raug offset rau ntawm cov khoom, ua rau muaj kev luam ntawv ntxaws ntxaws thiab meej. Kev luam ntawv offset paub txog nws lub peev xwm los tsim cov ntawv luam tawm ntau sai thiab pheej yig.
Ib qho tseem ceeb sib txawv ntawm kev luam ntawv phaj tooj liab thiab kev luam ntawv offset yog nyob rau hauv cov ntaub ntawv siv. Kev luam ntawv phaj tooj liab xav tau kev siv cov phaj tooj liab, uas tau etched thiab engraved los ntawm tes. Cov txheej txheem no xav tau lub sijhawm, kev txawj, thiab kev txawj ntse. Ntawm qhov tod tes, kev luam ntawv offset vam khom cov phaj hlau, uas tuaj yeem tsim tau siv cov thev naus laus zis siab heev thiab cov txheej txheem tsis siv neeg. Qhov no ua rau kev luam ntawv offset yog qhov kev xaiv yooj yim dua thiab pheej yig dua rau kev tsim khoom loj.
Lwm qhov txawv tseem ceeb yog hom duab uas txhua txoj kev tsim tawm. Kev luam ntawv tooj liab zoo heev ntawm kev tsim cov ntawv luam tawm zoo nkauj thiab kos duab nrog cov nqi nplua nuj thiab cov qauv tob. Nws feem ntau nyiam rau cov ntawv tshaj tawm siab, cov ntawv luam tawm zoo nkauj, thiab cov ntawv luam tawm tsawg. Kev luam ntawv offset, ntawm qhov tod tes, muab cov kev luam tawm meej, ci ntsa iab, thiab sib xws uas tsim nyog rau kev luam ntawv lag luam, xws li cov ntawv qhia, cov ntawv tshaj tawm, thiab cov ntawv xov xwm.
Hais txog tus nqi, kev luam ntawv phaj roj hmab tuaj yeem txuag tau cov nqi, uas yog qhov tsim nyog rau tus lej me me thiab qhov yuav tsum tau luam ntawv tsawg; Tus nqi ntawm kev luam ntawv phaj tooj liab yog siab, tab sis cov nyhuv ntawm kev luam ntawv yog qhov zoo meej, thiab nws yog qhov tsim nyog rau kev luam ntawv xim thiab cov qauv xav tau.
Xaus lus, kev luam ntawv phaj tooj liab thiab kev luam ntawv offset yog ob txoj kev sib txawv siv hauv kev lag luam luam ntawv, txhua tus muaj nws tus kheej qhov zoo. Kev luam ntawv phaj tooj liab tau hwm rau nws txoj kev ua haujlwm zoo thiab muaj peev xwm tsim cov ntawv luam tawm ntxaws ntxaws. Kev luam ntawv offset, ntawm qhov tod tes, muab cov ntawv luam tawm sai, pheej yig, thiab zoo rau kev tsim khoom loj. Los ntawm kev nkag siab txog qhov sib txawv ntawm cov txheej txheem no, koj tuaj yeem txiav txim siab paub txog cov txheej txheem twg zoo tshaj plaws rau koj cov kev xav tau luam ntawv.
Lub sijhawm tshaj tawm: Cuaj hlis-16-2023
