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硬纸板规范cardboard-spec

发布时间：2023-11-29 05:59:15 来源：文档文库

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AllAboutBoxes
TheBasics
Wehaveincludedthissectiontohelpyouselecttheproperstyleandtypeofboxtomeetyourpackagingandshippingneeds.MeasurementsBoxsizesaremeasuredbyusinginnerdimensionsunlessotherwisespecified.Thesizeofyourcontentsactuallydeterminetheinnerboxdimensions.Domestically(withintheUnitedStates,thosedimensionsarelistedinthefollowingsequence:Length(LxWidth(WxDepth(D*.Internationally,thedimensionsarestatedasLength(LxBreadth(BxHeight(H.Dimensionsarebasedontheopeningofanassembledbox.Lookingattheopening,thelongerofthetwosidesisconsideredthe"length."Theshorterofthetwosidesisthe"width."Thesideperpendiculartothelengthandwidthisthe"depth"ofthebox.*Exceptionsarebookfolds,binboxes&dividerbinswhere"width"precedes"length"&"depth"ofthemeasurementsequence.HowToMeasureABox-TheQuickWayLookingattheopeningofthebox,measurethelongestorlengthpanelfirst.Usingatapemeasure,placeitinthebottomoftheboxapproximatelyoneinchfromthebackwallandmeasurefromlefttoright.Repeattheprocessfortheshorterwidthpanel.Then,foldingasideflapinwarduntilitisperpendiculartoitsverticalsidewall,placethetapemeasureattheendoftheflapandextenditdownwarduntilitrestsontheinnerflapatthebottomofthebox(seeillustration.Thisexercisewillgiveyouthedepthdimensionofthebox.One-piece,die-cutboxes,suchasthe"mailer-style"withatuck-intop,donothaveflapswhenassembled,butthemeasuringprocedureisbasicallythesame.Fortheboxdepth,usetheinsidebackpanelasithasavisiblescoreline(creaseseparatingbackpanelfromlid.Forthewidthofadiecutbox,measurebetweenthescorelinesfoundontheinsideofthetoporlid.And,ofcourse,forthelengthofthebox,placeyourmeasuringruleonthebottomoftheboxapproximatelyone-inchfromthebackpanel.Measurefromlefttoright.BoxConstruction-WhatyouneedtoknowThe"Manufacturer'sJoint"iswherethetwoendsofthesidepanelsmeettoformthebox.Atthatpoint,thepanelsarefastenedtogetherwithtape,staplesorglue.Thisdescriptionappliestoregularslottedshippingcartons(RSCs.Thesidepanelthicknessandcontentweightdeterminethetypeofsealusedforthemanufacturer'sjoint.Forexample,glueisusedformostsinglewallboxes,butstaplesarefoundinsomedoublewallandinmosttriplewallboxes.Incontrast,die-cutboxesareone-piecepanelsscoredandfoldedtogether.Theydonothaveamanufacturer'sjoint.
BoxStrengthThestrengthofacorrugatedboxstartswithitsmaterial.Acorrugatedsheetconsistsoftwomajorcomponents-linerboardandmedium.Linerboardistheflatpaperthatcoversbothsidesofthesheetandthemediumisthe"fluted"orarchedpaperfoundbetweenbothliners.Theflute,whenanchoredtothelinerboardswithastarched-basedadhesive,resistsbendingandpressurefromalldirections.Whenplacedverticallyonitsends,theflutesformverticalcolumns,capableofsupportingconsiderableamountsofweight.Flutescomeinfivebasicheightsandshapes-themostcommonare"B-Flute"(usedfordie-cutboxesand"C-Flute(usedforRSCs.B-fluteiscompressedandappearsthinner,butdon'tbefooled.Itismadewithmorepapertoprovidestrongersidewallprotectionfromblowsandpunctures.C-fluteistaller,withmoreairspace,butoffersenhancedstackingstrength.Forexcellentgraphicreproduction,considerE-flute.Theamountofvirginpulpfibersandthelengthofthosefibersinacorrugatedsheetsubstantiallycontributetoboxstrength.Forexample,thedifferencebetweena200#testboxanda275#testboxisthatthelatterhasmorepulpfibersinitscorrugatedlinerboard.The200#testboxisratedtoholdupto65lbs.ofboxandcontentswhilethe275#boxcanholdupto95lbs.A350#testboxisratedtoholdupto120lbs.ofboxandcontents.ThefollowingchartshowsBurstingTestandEdgeCrushTestperformancestandardsofcorrugatedboxlinersbasedonthecombinedweightofaboxanditscontents.LookfortheManufacturer'sStampAwaytobesurethatthematerialoftheboxthatyou'repurchasingmeetsindustrystandardsistolookfortheManufacturer'sCertificationStamp,usuallyprintedononeofthebottomflapsofthebox.Thestampidentifiesthematerialas"singlewall,""doublewall"or"triplewall."ItalsocertifiestheMullenBurstingTest(mostcommonis200lbs.persquareinchortheEdgeCrushTest(ECT32lbs.perinch.TheMullenTestmeasurestheburstingstrengthofthecorrugatedlinerboardwhiletheEdgeCrushTestmeasureslinerboardstackingstrength.The200lbs.Mullenboxandthe32ECTboxarecomparableinstackingstrength.Butthatiswherethesimilarityends.TheMullenTestboxisbettersuitedfortheprotectionofheaviercontentswhiletheEdgeCrushTestboxprovideslighterweightcartonswithgoodstackingcharacteristics.Whenindoubtastowhichboxtouse,alwaysselecttheMullenTestboxbecausetheconstructionofthelinerboardcannotbealtered.Forexample,200#MullenTestlinerboardmustbemadeof42#persquareinchbasisweightpaperandthemediumorflutepapercannotbelessthan23#persquareinchbasisweight.

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