ASTM D7305-2008a 印刷品反射密度的标准试验方法

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【英文标准名称】:StandardTestMethodforReflectionDensityofPrintedMatter
【原文标准名称】:印刷品反射密度的标准试验方法
【标准号】:ASTMD7305-2008a
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D01.56
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:processcolor;reflectiondensitometer;reflectiondensity;spectrodensitometer;Printedmatter;Reflectiondensity
【摘要】:Oneofthekeypropertiesforprintinginthelaboronproductionequipmentistheintensityofthecolor,colorbalanceanduniformity.Thistestcanbeusedtoensurethattheproperamountofinkistransferredtothesubstratebyobtainingatargetdensityvalue,inadditiontodeterminingwhethertheprintisuniformbymeasuringthereflectiondensityoverawideprintarea.Thisthenallowstheuseoftheprintforcontrolledtestingofotherappearanceproperties,suchasglossandcolor,andperformanceproperties,suchasresistancetoabrasionandchemicals.Thistestcanbeusedtohelpachieveconsistentcolorreproductionofprintedcoloronflatsurfaces.Transferofdensityreadingsfromonesetofinkstoanother,orfromonesubstratetoanother,carriesahighriskofproducingacolorortoneshift.Itisnotinthescopeofthistestmethodtousedensityreadingsasdigitalproofoftargetpointsforprintingprocesscontrol.1.1Thistestmethoddescribesaprocedureformeasuringreflectiondensityofprintedmatterusingareflectiondensitometerorspectrodensitometer.1.2Thistestmethodisintendedprimarilyforprocesscolors(yellow,magentaandcyan)andblack.Withappropriateinstrumentation,itmayalsobeusedforothercolors.1.3Thistestmethodappliestoprintsmadebyanyprintingprocessonaflatsurface,withreflectiondensityvaluesrangingfromjustabovezero,ontheunprintedsubstrate,throughtoaround2.5forverydenseprints.1.4Thistestmethodcanbeusedforprintsonpaper,filmorboardbutnotforthoseonmetalorfoil.Itcanbeconductedinthepressroomorlaboratory.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A17
【国际标准分类号】:37_100_01
【页数】:4P.;A4
【正文语种】:英语