the process of papermaking

the process of papermaking

ID:9885898

大小:1.77 MB

頁數(shù):31頁

時間:2018-05-12

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1、PapermakingTheprocessofgoingfromPulptoPaper*Themainpartsofthispptwereobtainedfrominternet.ObjectivesOfPapermakingGoodFormationPhysicalandOpticalPropertiesHighCapacity(tonspaper/day)Papermaking WettoDryStockPreparation(Wet-end)Refining,Screens,Cleaners,ChemicalAdditivesPapermachineHeadbox,FormingSe

2、ction,PressSection,Dryers,SizePress,PaperReelDryEndCoating,Calendaring,Rewinding,PackagingStockPreparationpulp,stock,stuff:漿,漿料pulppreparing,stockpreparation:備漿chest:漿池;(stock)tank:(漿)池,槽reject,rejects,rejectedstock,rejections,ejects:篩渣,漿渣tailings:尾漿,漿渣clogging:堵漿beater:打漿機refiner:精漿機、打漿機beatingde

3、gree:打漿度oSR(Schopper-Riegler):肖氏打漿度;CSF:加拿大標(biāo)準(zhǔn)游離度acceptedstock:合格漿料,良漿accept:良漿additive:添加劑approachflow(ofstock):(漿料)上網(wǎng)approachflowsystem(紙機上的)流漿系統(tǒng)pulper,aquapulper,hydrapulper:水力碎漿機brooming:帚化furnish:配料form,forming:(紙頁)成形filler:填料fillerretention:填料留著率firstpassedretention:首程留著率decker,thickener:濃縮機k

4、not:漿節(jié)wet-endchemistry:濕部化學(xué)RefiningPurposeofRefiningCollapsefiberstoimprovebondingFibrillates(shredsfibers)toimprovebondingRefining IncreasedBondingPressureScreensRemovelargecontaminantsPlasticsMetalsRocksCentrifugalCleanersUsecentrifugalforcetoremovecontaminantsRemovesparticlesthatarelighterorhea

5、vierthanpulpPlasticsDirtChemicalPaperAdditivesAcidsandBasesControlpHSizingAgentsRosin,waxes,AKD(Alkylketenedimer)UsedforpapergradesrequiringwaterrepellencyorcontrolledrateofwaterabsorptionDryStrengthAdditivesStarchandotherpolymersUsedtoimprovestrengthandstiffnessofpaperWetStrengthAdditivesPolymers

6、thatcrosslinktofibersurfacesUsedforpapergradessuchastowelingChemicalPaperAdditivesFillersClay,talc,TiO2(titaniumdioxide)ImprovesopticalandsurfacepropertiesforprintinggradepapersRetentionAidsPolymersthatimproveretentionoffiberfinesandfillers(CPAM,cationicpolyacrylamide)DefoamersImprovewaterdrainage

7、andsheetformationSlimicidesControlsslimegrowthandothermicroorganismsinpapermachinewhitewaterPapermachineHeadboxandFormingSectionPressSectionDryerSectionPapermachinepapermaking:抄紙,造紙paper:紙sheet:紙頁paperweb:紙幅weakw

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