Partofspeech
[Zhuyin]:tàngyìn
Lettering(lettering)referstohotstampingonthefirstorfourthbackcoverofthehardcoverbookshellColorthetextandpatternsofmaterialssuchasfoil,orembossvariousconvexandconcavebooktitlesorpatternsbyhotpressing.
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Hotstampingreferstotheuseofhotstampingonpaper,cardboard,fabrics,coatingsandotherobjects.Theprocessinginwhichthehotstampingmaterialorhotstampingpatternistransferredtothehotobject.Thehotstampingprocessforbindingisgenerallymoreonthecover,andtherearemanyforms,suchassingle-materialhotstamping,hotstampingwithouthotstamping,mixedhotstamping,over-hotstamping,andsoon.
Technicalintroduction
Hotstamping,commonlyknownas"hotstamping",hasalonghistoryinChina.However,therapiddevelopmentandwideapplicationofhotstampingtechnologyisstillinthepasttenyears.Hotstampingtechnologyhasawiderangeofapplications,suchashotstampingofpaperproducts,hotstampingoftextiles,hotstampingofdecorativematerials,hotstampingofplasticproducts,etc./p>
Hotstampingisanimportantmethodforsurfacedecorationofplasticparts,anditisalsoacommonlyuseddecorationprocessforhouseholdappliancesandconsumerelectronicproducts.Itheatstheheatedhotstampinghead,sothatthemetalorcoatinglayeronthehotstampingfilmishot-pressedtothesurfaceoftheworkpiecetobeprocessed,soastoachievethepurposeofdecorationormarking.Thefourbasicconditionsofthehotstampingprocess:thehotstampingheadincludesahotstampingtemplate,aheater,andapressuretransmissionmechanism.
Thehotstampingfilmdeterminesthedecorativeeffectssuchascolor,graphicsandtext,andthereisafilmconveyingandwindingdeviceontheequipment.Hotstampingjig(former,padhead)includingworktableandconveyingdevice.Hotstampingmethodsincludeflatironingandhotstamping.Flatironingincludessmallarccurvedsurface,foldedsurfaceandinclinedsurfaceironing.Itsbasicformsare"flatironing"and"circularironing";pipingironingincludesflatironing,circumferentialironingandnon-circularsurfaceironing.ItsbasicTherearealsotwoforms:"Flatironedround"and"Roundironedround".
Developmentprocess
Flatironing,asthenameimplies,referstoastampwithaflatreferencesurface,whichisstampedonaflatworkpieceoracertainpartoftheworkpiece,(flatironing).Thiskindofimpressioncanbeaprotrudinggraphic,hotstampedonaflatsurface;itcanalsobeaflatsiliconeplate,hotstampedonaraisedgraphic.
Boilinghot,theembossingpartisaheatedsiliconrubberroller,whichcanbehotontheflatsurface(roundironing),oronthearcsurface(roundironing),ifmatchedwithThededicatedservomechanismcanalsobehotontheperipheryoftheTVcasingandotherhousings.Thereisalsoapipinghotdevice.Itisdifferentfromtheformer,itisstillhotstampedwithaflatplate,andtheworkpieceiscylindrical.Whenitispressed,itadvanceswhilepipingtoachievethepurposeofhotstampingonthecircumferentialsurface.Thisisa"flatironcircle".HotstampingequipmentBeforethe1980s,mostdomestichotstampingequipmentwasmadebyusers.Intheearly1980s,mostoftheimportedequipmentwerefromJapan'sDahei(Navidas),WestKurz,andHongKong.Flatironingmachine,pipingironingmachine.Sincethe1980s,domesticproductionplantshavegraduallyincreased,andnowtheyhavebecomeamajorcategoryofspecialprintingequipment,whichnotonlymeetsthedomesticmarketdemand,butalsoexports.
Thecurrenthotstampingisdifferentfromthepasthotstamping.Thequalityhasbeengreatlyimproved.Thesurfaceisverysmoothandflat,thelinesarestraight,theedgesaresharp,andtheedgesarenotcollapsed.Itshowsmodernfinishingtechnology.Thereisasenseofmodernity.Therearealsomanytypesofhotstampingfoil,includingbrightgold,brightsilver,sub-gold,sub-silver,brushpattern,chromefoil,pigmentfoil,etc.,andtheappearancedecorationeffectisverygood.Hotstampinglabelsareusedonmodernhomeappliancesandinstruments.
Theprincipleofhotstamping
Theessenceofhotstampingistransfer,whichistheprocessoftransferringthepatternontheanodizedaluminumtothesubstratethroughtheactionofheatandpressure.Whentheprintingplateheatsuptoacertainextentwiththeattachedelectrothermalbaseplate,itisimprintedthroughtheanodizedaluminumfilmandthepaper.Thetemperatureandpressureareusedtotransfertheadhesivelayer,metalaluminumlayerandcolorlayerattachedtothepolyesterfilm.Printedonpaper.
Hotstampingmaterials
Accordingtothetypeofmaterial,itcanbedividedinto:anodizedaluminumhotstamping,coloredfoilhotstamping,colorfilmhotstamping,metalfoilhotstampingandotherhotstampingfoilhotstamping.Thefollowingfocusesonthehotstampingofanodizedaluminummaterial.Anodizedaluminumfoilisahotstampingmaterialmadebyvacuumevaporationofalayerofmetalfoilonafilmbase.
①Thefirstlayeristhebasefilmlayer,alsoknownasthebaselayer,whichsupportstheotherlayers,suchaspolyesterfilmorpolyesterwithathicknessof12,16,18,20,25μ.
②Thesecondlayeristheisolationlayer(releaselayer),whichfacilitatestheseparationofthebasefilmandtheelectrochemicalaluminumfoilduringhotstamping.
③Thethirdlayeristhedyedlayer(protectivelayer):itprovidesavarietyofcoloreffectswhileprotectingthealuminumlayer.
④Thefourthlayerisaluminizedlayer:reflectinglight,showingmetallicluster,usingvacuumaluminumplatingmethod.Thespecificprincipleistoplacethecoloredfilminthevacuumchamberofthevacuumcontinuousaluminumplatingmachine.Underacertainvacuumdegree,throughresistanceheating,thealuminumwireismeltedandcontinuouslyevaporatedtothecolorlayerofthefilmtoformAluminizedlayer.
⑤Thefifthlayeristheadhesivelayer,whichsticksthealuminizedlayertopaperandothersubstrates.Electrochemicalaluminumfoilismainlymadeofgoldandsilver.Ithasthecharacteristicsofgorgeousandbeautiful,brightcolor,dazzlingandeasytouse.Itissuitableforhotstampingonpaper,plastic,leather,coatedfabric,plexiglass,plasticandothermaterials.Themostcommonlyusedmaterialinmodernhotstamping.
Hotstampingequipment
Themachinethatcantransferthehotstampingmaterialofanodizedaluminumfoiltotheprintedmatteriscalledahotstampingmachine.
1.Typesandcharacteristicsofhotstampingmachine
①Accordingtothehotstampingmethod,itisdividedinto:
●Flatpressing,thehotstampingmethodisflattoflat.
Figure5Flatpressingandflathotstampingmethod
●Roundflatpressing,thehotstampingmethodishotstampingwheel-to-plane.
Figure6RoundpressingandflathotstampingmethodFigure7Roundpressingandroundhotstampingmethod
●Roundpressinground,thehotstampingmethodisthehotstampingrollertothepressureroller.
②Accordingtothedegreeofautomation:manual,semi-automatic,andfullyautomatic.
③Accordingtotheformofthewholemachine,itisdividedintoverticalandhorizontal.
2.Thebasicmechanismofthehotstampingmachine
①Theframeofthebody,includingtheappearanceofthebody,thepaperfeedingtable,andthepaperreceivingtable.
②Hotstampingdevice,includingelectricheatingplate,hotstampingplate,embossingplateandbottomplate.Theelectricheatingplateisfixedontheprintingplateplatform,andtheelectricheatingplateisequippedwithacircuitouselectricheatingwirewithapowerof600~2500W;thehotstampingplateisacorrodedcopperplateorazincplate,whichischaracterizedbygoodheattransfer,noteasytodeform,pressureandwearresistance;Theembossingplateisusuallyanaluminumplateoranironplate;thebottomplateisanaluminumplatewithathicknessofabout7mm,whichisusedtopastethehotstampingplate;
③Theelectrochemicalaluminumconveyingdeviceiscomposedofunwindingshafts,feedingrollersandassistingItiscomposedofroller,anodizedaluminumwindingrollerandfeedingmechanism.Theanodizedaluminumismountedontheunwindingshaft.Thehot-stampedanodizedaluminumpassesbetweenthetwofeedingrollers.Thefeedingmechanismcomposedofcams,connectingrods,ratchetsandpawlsdrivestheintermittentrotationofthefeedingshafts.,Theintermittentrotationofthefeedingrollerdrivesthefeedingoftheanodizedaluminum,andthefeedingdistanceissetasthelengthofthestampedpattern.Thehotstampedanodizedaluminumisrolledonthewindingroller.
Processflow
Theprocessflowofhotstampingismainly:preparationbeforehotstamping→plateloading→padplate→determinationofhotstampingprocessparameters→testhot→signsample→formalHotstamping
1.Preparationsbeforehotstamping
Thepreparationsbeforehotstampingmainlyincludetheinspectionandselectionofanodizedaluminum,thepreparationofhotstampingplatesandtheinspectionofthehotstampingmachineWork.
①Inspectionandselectionofanodizedaluminum.Inadditiontoselectingthecorrectanodizedaluminum,attentionshouldbepaidtothequalitycharacteristicsoftheanodizedaluminumrawmaterials,becausethequalityoftheanodizedaluminumdirectlyaffectsthegradeoftheproduct.Theinspectionmethodis:checkwhetherthemodeliscorrect;opentherewindedanodizedaluminum,observewhetherthefilmsurfacehasscratches,blisters,wrinklesandwhetherthehandfeelssmooth;observewhetherthebrightnessoftheanodizedaluminummeetstherequirements,andthegoodqualityanodizedaluminumreflectslightItshouldbestrong,crystalclearandshiny.Itisgenerallydeterminedbyvisualinspection.
Therationaluseofelectrochemicalaluminumfoilisofgreatsignificanceformakingfulluseofmaterials,reducingwasteandreducingcosts.Therefore,itisnecessarytoconsidertheuseofreasonableandmakethebestuseofthematerialwhendesigninggraphicsandtexts,whichisbothbeautifulandeconomical.Beforethehotstampingofanodizedaluminum,itisgenerallynecessarytoaccuratelycalculatethematerialsused,andleaveappropriategapsaccordingtotheneedsofthehotstampingareaoftheproduct.
②Hotstampingplatepreparation.Therearegenerallythreetypesofplatesforhot-stampinganodizedaluminum:copperplate,zincplateandcopper-zincplatedplate.Itisbettertousecopperplate,becausecopperplatehasstrongheatresistance,hascertainflexibility,ismoredurablethanotherplates,andhasbetterhotstampingeffect.Thehotstampingplatesusedforhotstampingaregenerallyexternalprocessing.Beforeuse,checkwhetherthelayouthasburrs,irregularedgesandcorners,uncleargraphicsandotherdefects,andtheunqualifiedareasshouldbecorrodedandtrimmedbeforebeinghotstamped.
2.Plateinstallationprocess
Installtheplate,installthepreparedcopperplateonthebottomplate,andthenfirmlyfixthebottomplateontheelectricheatingplateofthemachine,andthensettherulesandpressureAdjusttheappropriateprocess.Thecopperplateshouldbefixedontheproperpositionofthebottomplatetoensuregoodheatingeffectandconvenientformanualproduction.Thebottomplateisheatedbytheelectricheatingplateandtransferstheheattotheprintingplateforhotstamping.Themethodoffixingthecopperplateisgenerallytofixitwithpasteorscrews,andthebottomplateisfixedontheelectricheatingplatewithscrews.Wheninstallingthecopperplate,youcanusethepositiveimagefilmofthegraphicversiontolocateittoensurethelocationofthebronzing.
3.Padprocess
Accordingtothebronzingeffect,thelocalunevennessandtheunfavorablebronzingeffectwillbetreatedwiththepadtomakethepressureuniform.
4.Determinationofbronzingprocessparameters
①bronzingtemperature.Thehotstampingtemperatureisdeterminedbasedonthetextureofthehotobjectandthehotstampingform(suchasplastic,paper,leather,etc.).Thegeneralsettingsareasfollows:printingplatetemperature:100～150℃;machinetemperature:70～200℃.Thetemperatureofthepaperbronzingmachinecanbesetaccordingtodifferentpapermaterials,differenttypesofanodizedaluminum,differentbronzingpressures,anddifferentbronzingtimes.Ifthetemperatureistoohigh,itwillappeargrayorblueduringhotstamping,thebrightnessofthemetalwilldecrease,andtherewillbeillssuchaspasteanduncleargraphics.Ifthetemperatureistoolow,hotstamping,brokenstrokes,weakadhesion,easytowipeoff,dullness,andfadingwilloccur.Whenthehotstampingareaislarger,thetemperatureshouldbeslightlyhigher;otherwise,itshouldbelower.
②Foilstampingpressure.Thesizeofthehotstampingpressureshouldbedeterminedaccordingtothenature,thicknessandhotstampingformofthehotstamping,whichisgreaterthanthegeneralprintingpressure.Thepressureislargetoensurethattheplateisnotpasted,andtheburnmarkisclearandbright;thepressureissmalltobefirmanddoesnotfalloffanddoesnotbloom.Ifonthesameplate,whenhotstampingtwotypesofpicturesandtextswithdifferentsizes,itisnecessarytomasterthepressureperunitareaequal,thelargerthehotstampingarea,thegreaterthehotstampingpressure,andviceversa.
③Thebronzingtime.Inactualoperation,thehotstampingtimeisusuallyregardedasaconstant,anditisnoteasytochangeit.Afterfixingthehotstampingtime,adjustingthehotstampingtemperatureandpressurewillreducethevariables,simplifytheoperation,andeasilycontrolthequality.Generallyspeaking,onlyconsiderchangingthehotstampingtimewhentheconditionsarespecial.Inaddition,ifnohotstampingmaterialisused,thetemperaturecanbeappropriatelyreducedby10%to20%,andthetimeshouldbeincreasedby1to2secondsonlywhentheembossingmarksarehotstamped.
Thegeneralsequencefordeterminingtheabovethreeprocessparameters(temperature,pressure,time)is:basedonthecharacteristicsoftheobjecttobeironedandthesuitabilityofanodizedaluminum,anddeterminedbytheareaoftheprintingplateandthestampingtimeTemperatureandpressure,andthendeterminethebestpressure,sothatthelayoutpressureismoderate,smooth,uniformeverywhere,andfinallydeterminethebesttemperature.Fromtheperspectiveofhotstampingeffect,hotstampingwithaflatterpressure,alowertemperatureandaslightlyslowerspeedisideal.Becausetherelativelyflatpressurecanmakeeachpointoftheanodizedaluminumadherefirmlytotheobjecttobeironed;onthebasisofsufficientbonding,alowertemperaturecanbeusedtomaintaintheinherentmetal-likelusteroftheanodizedaluminum;Thespeedofthecaristoadapttotheslightlylowertemperature.
5.Trialironingbytheoperator
Afterthecurrentworkisready,youcantestironseveralsheets.Iftherulesarenotcorrect,youcanadjustthefrontorsiderulesappropriately;ifitisbecauseIfthequalityrequirementsarenotmet,youcanadjustthebronzingtemperatureagainorperformapadoperation.Afterreachingtherequirementsofthebronzingqualityregulations,youcanbringthetrialbronzingsamplesandstandardmanuscriptstotheworkshopsupervisorforsignatureproduction.
6.Thesupervisorsignsthesample
Afterrepeatedcomparisonandconfirmationbytheworkshopsupervisor,thequalifiedhotstampingisconfirmed,andtheoperatorperformstheformalhotstampingaftersigningthesample.
7.Formalhotstampingproduction
Duringtheformalproductionprocess,theoperatorshouldconductself-inspectionaccordingtotheproductionrequirements,andtheworkshopsupervisorandqualityinspectionpersonnelwillalsoconductself-inspectiononthemachineside.Randominspection.
Pronetoproblems
1.Thehotstampingisnotgoodorthehotstampingisnotstrong
Thehotstampingisnotgoodorthehotstampingisnotstrong,thatis,theanodizedaluminumisnotidealThegroundistransferredtothesurfaceofthesubstrateortheanodizedaluminumcannotadherewelltothesubstrate.Themainreasonsforthehotstampingfailureorthehotstampingfailureare:lowhotstampingtemperature;shorthotstampingtime;insufficienthotstampingpressure;basecolorinkcontainsparaffin;thebasecolorinkoftheprintedmatteristhickandsmooth;thebasecolorinkoftheprintedmatterdriestoofastandcrystalsThemodelofanodizedaluminumisnotsuitable,etc.
2.Hotstampingreversepullphenomenon
Theso-calledreversepullreferstothefactthatafterhotstamping,theelectrochemicalaluminumfoillayerisnotfirmlyattachedtothebasecolorinklayeroftheprintedmatterorthesurfaceofthewhitepaper.Partorallofthebackgroundinklayerispulledawaybytheanodizedaluminum.
Themainreason:thebasecolorinklayerisnotdry;thebasecolorinklayerusestoomuchwhiteink,whichiseasytopowder.Solution:Controltheamountofdryoiladded;mixthelighteningagentwithwhiteink;noinkisprintedonthehotstampingpart.
3.Hot-stampinggraphicsandtextsareeasytobedistorted
Picturesandtextsarefuzzy,missingpensandbrokenpictures,poorgloss,etc.Fuzzyhandwritingisduetolowtemperature;lackofstrokesandbrokenpicturesaregenerallycausedbyexcessivetensionorinsufficientpressureontheanodizedaluminumroll;poorglossisduetotoohightemperature.Solution:Accordingtothespecificproblem,adjustthetemperaturetotheappropriatetemperatureandpressurerelativelyappropriately.
Moderntechnology
"Hotstamping"
HotstampingtechnologyreferstotheuseofaspecialmetalhotstampingplatetoheatandpressTheprintingfoilistransferredtothesurfaceoftheprintingmaterial.
Theadvantagesofhotstampingtechnologymainlyincludethefollowingpoints.
⑴Goodquality,highprecision,clearandsharpedgeofhotstampingimage.
⑵Thesurfaceglossishigh,andthehotstampingpatternisbrightandsmooth.
⑶Thehotstampingfoilhasawiderangeofoptions,suchashotstampingfoilsofdifferentcolors,hotstampingfoilswithdifferentglosseffects,andhotstampingfoilssuitablefordifferentsubstrates.
⑷Thehotstampingprocesshasanotheroutstandingadvantage,thatis,itcanbeusedforthree-dimensionalstamping.Usingcomputernumericalcontrolengraving(CNC)methodtomakeathree-dimensionalhotstampingplate,sothatthegraphicsandtextprocessedbyhotstampinghaveobviousthree-dimensionallayers,formingareliefeffectonthesurfaceoftheprintedmatter,andproducingastrongvisualimpacteffect.Three-dimensionalhotstampingcanmakethepackaginghaveauniquetouch.
Itispreciselybecauseoftheabove-mentionedadvantagesofthehotstampingprocessthatithasbeenfavoredbyusersandconsumersandhasawiderangeofapplications.However,thehotstampingprocessrequirestheuseofspecialequipment,aheatingdevice,andtheproductionofhotstampingplates.Therefore,obtaininghigh-qualityhotstampingresultsalsomeanspayingahighercost.
Mr.ChrisCorbett,InternationalSalesManagerofITWFoilmark,pointedoutthatthepriceofrotaryhotstampingcylindersishigher,anditaccountsforalargeproportionofthecostofhotstampingprocess,whichisthemaincostofhotstampingprocess.factor.Atthesametime,healsopointedoutthatinthepastfiveorsixyears,thepriceofhotstampingcylindershasbeenreducedtoalargeextent,andthedropisashighas50%.Inadditiontoreducingthecostofhotstampingcylinders,hotstampingsystemsuppliersalsochallengethelimitsofhotstampingspeed.Inthepast,duetothelimitationofhotstampingspeed,mostofthehotstampingworkwasdoneoffline.Nowthesituationisquitedifferent.Afewyearsago,thehotstampingspeedofthehotstampingmachinecouldnotreach5000sheets/hour.Atpresent,whetheritisaplatformhotstampingmachineorarollerhotstampingmachine,thespeedcanreach7500to12,000sheets/hour.Ofcourse,thehotstampingspeedisalsorelatedtothetypeofmachineused.Thecontinuousimprovementofproductionspeedgreatlyreducesthecostofhotstamping.
"Coldhotstamping"
ColdhotstampingtechnologyreferstotheuseofUVadhesivetotransferthehotstampingfoiltotheprintingmaterial.Thecoldstampingprocesscanbedividedintotwotypes:drylaminatingcoldstampingandwetlaminatingcoldstamping.
ThedryfilmtypecoldhotstampingprocessistocurethecoatedUVadhesivebeforehotstamping.10yearsago,whenthecoldstampingtechnologyjustcameout,thedryfilmtypecoldstampingprocesswasadopted,andthemainprocessstepsareasfollows.
⑴PrintcationicUVadhesiveontherollsubstrate.
⑵CuretheUVadhesive.
⑶Thecoldhotstampingfoiliscombinedwiththeprintingmaterialbymeansofapressureroller.
⑷Removetheexcesshotstampingfoilfromtheprintingmaterial,leavingonlythedesiredhotstampingimageandtextontheadhesive-coatedpart.
Itisworthnotingthatwhenthedrylaminatingcoldstampingprocessisused,thecuringoftheUVadhesiveshouldbecarriedoutquickly,butitcannotbecuredcompletely.Itisnecessarytoensurethatitstillhasacertainviscosityaftercuring.Inthisway,itcanbondwellwiththehotstampingfoil.
ThewetlaminatingcoldstampingprocessinvolveshotstampingandthencuringtheUVadhesiveaftercoatingtheUVadhesive.Themainprocessstepsareasfollows.
⑴PrintingfreeradicalUVadhesiveontherollsubstrate.
⑵Compoundcoldhotstampingfoilontheprintingmaterial.
⑶ThefreeradicalUVadhesiveiscured.Sincetheadhesiveissandwichedbetweenthecoldstampingfoilandtheprintingmaterialatthistime,theUVlightmustpassthroughthestampingfoiltoreachtheadhesive.Floor.
⑷Peelthehotstampingfoilfromtheprintingmaterial,andformahotstampingimageontheprintingmaterial.
Itshouldbenotedthat:First,thewetlaminatingcoldstampingprocessusesradicalUVadhesivestoreplacetraditionalcationicUVadhesives;second,theinitialadhesionofUVadhesivesItmustbestrongandcannolongerbestickyaftercuring;third,thealuminizedlayerofthehotstampingfoilshouldhaveacertainlighttransmittancetoensurethattheUVlightcanpassthroughandtriggerthecuringreactionoftheUVadhesive.
Thewetlaminatingcoldhotstampingprocesscanhotstampmetalfoilorholographicfoilinlineontheprintingmachine,anditsapplicationrangeisbecomingwiderandwider.Atpresent,manynarrow-widthcartonandlabelflexographicprintingpresseshavethisin-linecold-stampingcapability.
1.Advantagesanddisadvantagesofcoldstampingtechnology
Theoutstandingadvantagesofcoldstampingtechnologymainlyincludethefollowingaspects.
⑴Thereisnoneedforspecialhotstampingequipment,andthepriceoftheseequipmentisusuallyrelativelyexpensive.
⑵Thereisnoneedtomakemetalhotstampingplates,andordinaryflexographicplatescanbeused,whichnotonlyhasfastplatemakingspeedandshortcycle,butalsoreducestheproductioncostofhotstampingplates.
⑶Thehotstampingspeedisfast,upto450fpm.
⑷Noheatingdevice,andcansaveenergy.
⑸Thescreenimageandthesolidcolorblockcanbehotstampedatthesametimebyusingaphotosensitiveresinplate,thatis,thescreentoneimageandthesolidcolorblocktobehotstampedcanbemadeonthesamehotstampingplatesuperior.Ofcourse,justlikethemeshandsolidcolorblocksystemisprintedonthesameprintingplate,thehotstampingeffectandqualityofbothmayhaveacertainloss.
⑹Thehotstampingsubstratehasawiderangeofapplications,anditcanalsobehotstampedonheat-sensitivematerials,plasticfilms,andin-moldlabels.
However,coldstampingtechnologyalsohascertainshortcomings,mainlyincludingthefollowingtwopoints.
⑴Cold-stampedgraphicsandtextusuallyneedtobecoatedorpolishedforsecondaryprocessingprotection,whichincreasesthecostandprocesscomplexityofhotstamping.
⑵Thecoatedhigh-viscosityadhesivehaspoorlevelingandisnotsmooth,causingdiffusereflectiononthesurfaceofthecoldstampingfoil,affectingthecolorandglossofthestampinggraphics,therebyreducingtheaestheticsoftheproduct.
Mr.J.MichaelRivera,deputygeneralmanagerofsalesofAMAGICHologrphicsCompany,saidthatalthoughthecoldhotstampingprocesscannotachievethehighprecisionandhighdefinitionofthehotstampingprocess,thecoldhotstampingtechnologycanprovideflexographicprinterswithTherearemanyadvantages,including:lessinitialinvestmentinequipment,lowercostofplatemaking,fasterhotstampingspeed,canbecompletedon-lineontheprintingmachine,andcanbeusedonmaterialsthatarenotsuitableforhotstampingprocesses(suchasfilmswithoutsubstrates,HotstampingonPETandplasticbags,etc.).
Onfilmandnon-absorbentpapermaterials,coldhotstampingtechnologycanachievethebesthotstampingeffect.Onthecontrary,whencoldstampingisperformedonporousmaterialswithstrongpermeability,theeffectisnotveryideal..However,Mr.RiverapointedoutthatsomeAMAGICcustomershavehotstampedonRaflatacRaflasilkmattePSAmaterials,andthefeedbackresultsarequitegood.Somecustomerscanalsogetbettercoldstampingresultsbyapplyingprimerandglueonmattepapermaterials.
Atpresent,coldstampingtechnologyhasbecomeastrongcompetitorofhotstampingtechnology,andcoldstampingtechnologyisexpandingfromthefieldofnarrow-formatflexographicprintingtootherprintingprocesses,suchaswide-formatflexographicprintingandembossing.,Weboffsetprintingandsheet-fedoffsetprinting,etc.Forexample,atDrupa2004,theRoland700sheetfedoffsetpressequippedwithmanroland'snewPrindorInLinecold-stampingdevicewasexhibited.
Coldhotstampingtechnologyprovidesnewopportunitiesforprintingcompanies.Itsbiggestadvantageisthatthereislittleinvestment,orevennoinvestmentatall.Anotheroutstandingadvantageisthehighcostperformance,whichisalsothebiggestsellingpointofcoldstampingtechnology.Asanindustryinsidersaid:"Forcustomers,coldhotstampingtechnologyismorecost-effectiveandcanhelpcustomersincreasetheaddedvalueoftheirproducts,anditisveryeconomical."Inaddition,becausecoldhotstampingtechnologydoesnotrequireexpensivehotstampingplates,Therefore,itisverysuitableforshort-run,low-qualitylabelandproofingproduction.However,comparedwithhotstampingtechnology,coldstampingtechnologystillhascertaindefectsintermsofqualityandneedstobefurtherimproved.Therefore,coldstampingtechnologyisnotsuitablefortheprocessingofhigh-qualitypackagingandlabelproducts.
Iwanttomentionherebytheway,althoughgoldandsilverinkprintingcanalsoachieveametalliclusterdecorationeffectsimilartohotstamping,andinrecentyears,goldandsilverinkprintingtechnologyhasalsoachievedgreatProgress,butstillunabletoachievethekindofstrongvisualimpactbroughtbyhotstampingorcoldstampingtechnology.
Howtochoose
Inactualproduction,whethertochoosehotstampingtechnologyorcoldstampingtechnology?Theansweris:itshouldbebasedonspecificcircumstances.Hotstampingtechnologycanachievethebeststampingqualityandeffect,butthecostishigher.Althoughthequalityofcoldstampingisgood,itisinferiortohotstamping,butthecostislower.Nomatterwhichhotstampingtechnologyyouuse,youshouldpayattentiontothesetwohotstampingtechnologies,becausethepriceofhotstampingisconstantlydropping,andthequalityofcoldstampingisconstantlyimproving,andbothhotstampingtechnologiesareconstantlyinprogress.Progressanddevelopment.
Whenaprintingcompanydecideswhethertoinvestincold-stampingtechnology,itmustcombinetheactualsituationofthecompanytounderstandthesituationofthecompany’sprintingpress,becausetheuseofcold-stampingtechnologymeansthataprintingunitmustbecold-stamped.Replacement,butalsoneedtoinstallapeelingdevice,ifthenumberofcolorsetsoftheprinterisnotenough,itmayaffectthenormalprintingofthejob.
Inaddition,itisnecessarytojudgewhetherthejobissuitableforcoldstamping.Carefullystudythegraphicsandtexttodeterminewhethertheycanachievethedesiredeffectaftercoldstamping.PrintingcompaniescanworkwithUVadhesivesupplierstoconductexperimentsoncoldstamping,toprovidecustomerswithmorechoicesandimprovetheirabilitytoservecustomers.Onthebasisofexistingcustomers,itcanalsoimprovethecompany'sowncompetitivenessandthepotentialtocreateconsumerdemandforcustomers'products.