Lub sij hawm "daim ntawv cog lus ” tau txais nws lub npe los ntawm 1800s lig thaum daim ntawv no tau siv los tsim tsoomfwv cov ntawv cog lus thiab lwm yam ntaub ntawv raug cai. Niaj hnub no, daim ntawv cog lus tau siv los luam ntau dua li tsoomfwv daim ntawv cog lus, tab sis lub npe tseem nyob. Daim ntawv cog lus kuj tuaj yeem hu uaUncoated woodfree ntawv (UWF),uncoated zoo ntawv, nyob rau hauv Suav lag luam peb kuj hu nws Offset ntawv.
Offset ntawv tsis yog ib txwm dawb. Cov xim thiab ci ci ntawm daim ntawv yog nyob ntawm cov txheej txheem ntoo pulp bleaching, thaum "brightness" yog hais txog cov teeb pom kev zoo nyob rau hauv cov teeb pom kev zoo li qub.Yog li muaj ob hom ntawv tsis muaj coated:
Daim Ntawv Dawb: Feem ntau, ua kom muaj peev xwm nyeem tau ntawm cov ntawv dub thiab dawb.
Natural Paper: Cream-coloured, NW nyuam qhuav bleached, softer los yog ib txwm tone.
Cov nplaum nplaum ua rau daim ntawv offset coarse qauv. Qhov no ua rau daim ntawv zoo tshaj plaws rau kev luam ntawv nrog lub laser lossis ink-jet tshuab luam ntawv, sau nrog tus cwj mem ballpoint, cwj mem thiab lwm yam los yog stamping. Qhov siab dua daim ntawv hnyav ntawm offset Tshuag, qhov ruaj khov ntawm daim ntawv.
Offset ntawv yog tus qauv Tshuag siv hauv kev lag luam sau ntawv. Vim nws tsis coated nto, offset ntawv muaj ib tug siab printing number case absorption. Yog li ntawd, cov xim luam tawm yog tsawg dua li ntawm daim duab luam ntawv, piv txwv li. Offset ntawv yog tsim rau cov qauv yooj yim nrog ob peb duab.
Cov ntawv offset feem ntau yog siv rau cov khoom siv hauv chaw ua haujlwm, cov duab puv xim, cov duab kos, cov ntawv nyeem, cov ntaub ntawv mos (paperbacks), thiab cov ntawv luam tawm, muab cov duab zoo nkauj rau cov nplooj ntawv hauv ntau yam xim thiab xim. Txawm li cas los xij, nws tsis haum rau cov duab xim zoo nkauj.
Qhov sib txawv tseem ceeb ntawm daim ntawv theej thiab daim ntawv offset yog qhov tsim. Cov ntawv luam ntawv feem ntau muaj kev tsim tsis zoo tshaj li daim ntawv offset, uas txhais tau hais tias cov ntawv fibers raug faib tsis sib npaug.
Thaum koj muab tus number case rau ntawm daim ntawv, ib yam li offset luam ntawv, daim ntawv yog qhov tseem ceeb hauv kev yuav ua li cas tus number case nteg.
Cov cheeb tsam ntawm tus cwj mem zoo li mottled. Offset ntawv zoo dua tsim los tuav tus cwj mem.
Post lub sij hawm: Nov-17-2023