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1、ChapterForewordBook8PapermakingPart1,StockPreparationandWetEndSerieseditorsJohanGullichsen,HelsinkiUniversityofTechnologyHannuPaulapuro,HelsinkiUniversityofTechnologyBookeditorHannuPaulapuro,HelsinkiUniversityofTechnologySeriesreviewerBrianAttwood,St.Anne'sPaperandPaperboardDev
2、elopments,LtdBookreviewerMarcFoulger,GL&V/BlackClawsonKennedyJoeParisian,GL&V/BlackClawsonKennedyIvanI.Pikulik,PAPRICANPublishedincooperationwiththeFinnishPaperEngineers'AssociationandTAPPIForewordJohanGullichsenandHannuPaulapuroPAPERMAKINGSCIENCEANDTECHNOLOGYPapermakingisavast
3、,multidisciplinarytechnologythathasexpandedtremendouslyinrecentyears.Significantadvanceshavebeenmadeinallareasofpapermaking,includingrawmaterials,productiontechnology,processcontrolandendproducts.Thecomplexityoftheprocesses,thescaleofoperationandproductionspeedsleavelittleroomf
4、orerrorormalfunction.Modernpapermakingwouldnotbepossiblewithoutapropercommandofagreatvarietyoftechnologies,inparticularadvancedprocesscontrolanddiagnosticmethods.Notonlyhasthetechnologyprogressedandnewtechnologyemerged,butourunderstandingofthefundamentalsofunitprocesses,rawmate
5、rialsandproductpropertieshasalsodeepenedconsiderably.Thevariationsintheindustry抯heterogeneousrawmaterials,andthesophisticationofpulpingandpapermakingprocessesrequireaprofoundunderstandingofthemechanismsinvolved.Paperandboardproductsarecomplexinstructureandcontainmanydifferentco
6、mponents.Therequirementsplacedonthewaytheseproductsperformarewide,variedandoftenconflicting.Thoseinvolvedinproductdevelopmentwillcontinuetoneedaprofoundunderstandingofthechemistryandphysicsofbothrawmaterialsandproductstructures.Paperhasplayedavitalroleintheculturaldevelopmentof
7、mankind.Itstillhasakeyroleincommunicationandisneededinmanyotherareasofoursociety.Thereisnodoubtthatitwillcontinuetohaveanimportantplaceinthefuture.Papermust,however,maintainitscompetitivenessthroughcontinuousproductdevelopmentinordertomeettheever-increasingPapermakingPart1,Stoc
8、kPreparationandWetEnd-Page1Chapterdemandsonitsperforma