Classification
Anintaglioplatecarvedbyhandormechanicalmethod.Dividedinto3categories:①Manualdirectengravingintaglio.Drawortransferthebasepatternonacopperorsteelplate,andthenuseacarvingknife,carvingneedle,embossingroller,etc.todirectlyengravethegraphicsandtextalongthepatterncontourlinebyhand,removethedebrisonbothsidesoftheline,anduseatriangularscraperAndcalenderkniferefurbishment.②Etchingintaglio.Aftercoatingtheanti-corrosionfilmontheplate,useasteel-pointedneedletomanuallymarkthedotsandlinesonthefilm,exposingthemetalsurface,soakitinthecorrosivesolutionforamoment,andthencoatthecorrespondingsmalldotsandthinlines.corrosion.Ifthecoatingfilmiscorrodedrepeatedly,thedotsandlinesofthepicturesandtextswillreachdifferentthicknessesanddepthsduetothecorrosiontime.③Machineengravedintaglio.Anintaglioplatethatisetchedaftermechanicallyengravingorscribingtheresistfilmontheplatematerial.Therearepatternengravingmachine,embossingengravingmachine,parallellineengravingmachineandzoomengravingmachineandsoon.Theelectronicengravingmachineusesacomputer-controlledengravingknifetodirectlyengraveonthemetalsurfaceofthedrum,orusealaserbeamtoengraveonthesurfaceoftheplasticlayerofthedrum.
Printingvaluablesecurities,usingtheoriginalplateofengravingintaglio,andcopyingtheprintingplateforgravureprintingbypressingmethodorelectroplatingmethod.