Nws yog qhov nyuaj rau xav lub neej txhua hnub ntawm txhua tus neeg tsis muaj ntawv. Nws yog qhov nruab nrab ntawm cov ntaub ntawv zoo, nyob rau qhov chaw tshwj thiab dhau los ntawm lwm tus.
Cov Lus Qhia
Kauj ruam 1
Txoj kev niaj hnub ua daim ntawv tuaj ntawm Suav teb, nyob ib ncig ntawm 105 AD, qhov twg thawj zaug lawv muaj peev xwm tau txais daim ntawv nyias nyias, ntawm qhov graphite tau yooj yim tso ib qhov cim tseg. Hauv tebchaws Lavxias, daim ntawv pib tau tsim hauv xyoo pua 16th. Thaum pib, kev tsim khoom tau zoo li txheej thaum ub thiab muaj kev sib tsoo cov kab sib xyaw nrog ntxiv ntawm cov tshauv, khaub ncaws, hemp thiab dej. Lub txiaj ntsig loj tau muab ziab kom qhuav hauv lub hnub thiab yog li hloov mus rau hauv ntawv.
Kauj ruam 2
Txij li xyoo 1803, ntawv twb tau txais siv cov tshuab tshwj xeeb, tab sis cov txheej txheem nws tus kheej tsis txawv ntau ntawm cov keeb kwm tsim. Qhov tsuas yog ib qho yog tias tam sim no nws tau dhau los ua kev paub tshuab. Thawj daim ntawv tsim tshuab hauv peb lub tebchaws tsuas yog xyoo 1817 xwb.
Kauj ruam 3
Niaj hnub no, cov ntawv tuaj yeem tau txais los ntawm cov nroj tsuag cellulose lossis cov khoom siv rov ua dua tshiab (daim ntawv pov tseg). Cov zaub ntsuab nrog cov ntsiab lus fiber yog ib qho tseem ceeb ntawm kev tsim khoom. Lawv cov khoom ua tiav ib nrab tuaj yeem yog: ntoo pulp, rag ib nrab-pawg, nrog rau cov cellulose.
Kauj ruam 4
Xav txog kev tsim khoom, qee qhov sib lawv liag ntawm cov txheej txheem tshwj xeeb. Feem ntau, qhov no yog vim los ntawm lub tshuab canteen ntawv. Nyob rau thawj theem, daim ntawv yuav tsum tau sis plawv hniav tau npaj, ntawm theem ob, nws yog tsim thiab qhuav siv ib chav. Ntawm theem peb, lawv kawg ua tiav (txiav), txheeb thiab ntim.
Kauj ruam 5
Lub cuab yeej, nyob rau hauv lem, suav nrog lub mesh, nias thiab ziab seem. Muaj kuj tseem muaj calender thiab yob. Lub mesh ib thaj ua haujlwm rau daim ntaub thiab nws cov ebb. Hauv lwm lo lus, qhov no tshem tawm cov dej ntau dhau.
Kauj Ruam 6
Cov xovxwm ntawm chav ntsuas kuj tseem siv sijhawm hla dej, tab sis twb ua tau ntawm dryness txog li 40%. Ntu ziab muab lub vev xaib nrog txog 95% lub cev qhuav. Lub calender thickens daim ntawv, ua rau nws du.
Kauj Ruam 7
Tom qab dhau tag nrho cov khoom siv no, cov canvas yog mob rau ntawm yob. Tom qab ntawd, nws yog txiav rau qhov loj me uas xav tau ntawm kev txiav tshuab tshwj xeeb.
Kauj ruam 8
Qhov kawg ntawm tag nrho cov txheej txheem tuaj yeem suav tias yog ntim khoom. Yog tias tsim nyog, daim ntawv tau xas thiab nws cov hniav dawb tau nce nrog kev pab los ntawm cov tshuaj ua kom dawb. Tsis tas li ntawd, cov ntawv txheeb tuaj yeem yog embossed.
