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1、DETERMINATIONOFFREEFORMALDEHYDEONTEXTILESUBSTRATEBYHPLCBojanaVONCINAUniversityofMaribor,TextileDepartmentSmetanova17,2000Maribor,SloveniaITSAPTseminar,Guimaraes,November2005FormaldehydeisbuiltintheatmospherethoughtphotochemicalprocessesofhydrocarbonsItisproducedduringtheuncompletedco
2、mbustionofwood,oil,gas,tobaccoSourceofformaldehyde:-Automobilesandairplanes70-80%-Heatingandincineration13-15%-Formaldehydeinchem.prod.1%ITSAPTseminar,Guimaraes,November2005FormaldehydeisfoundinhumanbodyasabuildingblocksforaminoacidsandproteinsBlood2-3mg/kgApple17-22mg/kgTomatoes6-7m
3、g/kgWood4-18mg/kgFormaldehydeisoftenusedasabuildingblockforanumberofimportantchemicalproducts,intermediatesandconsumergoods:-urea-formaldehyderesins(25%),-phenol-formaldehyderesins(20%),-plastics(15%),-intermediates(22%).ITSAPTseminar,Guimaraes,November2005ToxicityDataFormaldehydeisr
4、eadilyabsorbedthroughskinandistoxicbyinhalationItisconsideredtoxic,carcinogen,mutagen,corrosiveHealthEffects:Inhalation:formaldehideisextremelydestructivetotissueofthemucousmembranesandthatoftheupperrespiratorytract.Inhalationmaybefatalasaresultofspasmandinflammation.Eyes/Skin:extrem
5、elydestructivetothetissueoftheeyesandskin.CancauseallergicskinreactionsIngestion:Cancausegastrointestinaldisturbances.Mayaltergeneticmaterial.Thisisconsideredacarcinogen.TargetOrgans:eyes,kidneys,liver,heart,potentialcanceragent,testis,ovariesITSAPTseminar,Guimaraes,November2005Themo
6、steffectivecrosslinkingreagentsfordurablepressfinishingofcellulosefibersareformaldehydeadductsofureawhichreleaseformaldehydeduringtheproductionandwearingofinsuchwaytreatedclothesFormaldehydedurablepressfinishersareappliedtothetextilesubstratemainlyintheformofN-methylolandN-alkoxymeth
7、ylcompoundsITSAPTseminar,Guimaraes,November2005Releaseofformaldehydefromthetextilesubstratecanbemeasuredby:STANDARDTESTMETHODSJapanLaw112(ENISO14184-1)AATCC-112Theformaldehydecontentbelow20mg/kgcannotbeshowntobecausedbytheformaldehydewhichwasreleasedbythecrosslinkingreagent.ALTERNATI
8、VETESTMETHOD
