the process of papermaking

the process of papermaking

ID:9885898

大?。?.77 MB

頁(yè)數(shù):31頁(yè)

時(shí)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c(diǎn)logging:堵漿beater:打漿機(jī)refiner:精漿機(jī)、打漿機(jī)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(jī)上的)流漿系統(tǒng)pulper,aquapulper,hydrapulper:水力碎漿機(jī)brooming:帚化furnish:配料form,forming:(紙頁(yè))成形filler:填料fillerretention:填料留著率firstpassedretention:首程留著率decker,thickener:濃縮機(jī)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(yè)paperweb:紙幅weakw

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