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1、DETERMINATIONOFFREEFORMALDEHYDEONTEXTILESUBSTRATEBYHPLCBojanaVONCINAUniversityofMaribor,TextileDepartmentSmetanova17,2000Maribor,SloveniaITSAPTseminar,Guimaraes,November2005FormaldehydeisbuiltintheatmospherethoughtphotochemicalprocessesofhydrocarbonsItis
2、producedduringtheuncompletedcombustionofwood,oil,gas,tobaccoSourceofformaldehyde:-Automobilesandairplanes70-80%-Heatingandincineration13-15%-Formaldehydeinchem.prod.1%ITSAPTseminar,Guimaraes,November2005Formaldehydeisfoundinhumanbodyasabuildingblocksfora
3、minoacidsandproteinsBlood2-3mg/kgApple17-22mg/kgTomatoes6-7mg/kgWood4-18mg/kgFormaldehydeisoftenusedasabuildingblockforanumberofimportantchemicalproducts,intermediatesandconsumergoods:-urea-formaldehyderesins(25%),-phenol-formaldehyderesins(20%),-plastic
4、s(15%),-intermediates(22%).ITSAPTseminar,Guimaraes,November2005ToxicityDataFormaldehydeisreadilyabsorbedthroughskinandistoxicbyinhalationItisconsideredtoxic,carcinogen,mutagen,corrosiveHealthEffects:Inhalation:formaldehideisextremelydestructivetotissueof
5、themucousmembranesandthatoftheupperrespiratorytract.Inhalationmaybefatalasaresultofspasmandinflammation.Eyes/Skin:extremelydestructivetothetissueoftheeyesandskin.CancauseallergicskinreactionsIngestion:Cancausegastrointestinaldisturbances.Mayaltergeneticm
6、aterial.Thisisconsideredacarcinogen.TargetOrgans:eyes,kidneys,liver,heart,potentialcanceragent,testis,ovariesITSAPTseminar,Guimaraes,November2005Themosteffectivecrosslinkingreagentsfordurablepressfinishingofcellulosefibersareformaldehydeadductsofureawhic
7、hreleaseformaldehydeduringtheproductionandwearingofinsuchwaytreatedclothesFormaldehydedurablepressfinishersareappliedtothetextilesubstratemainlyintheformofN-methylolandN-alkoxymethylcompoundsITSAPTseminar,Guimaraes,November2005Releaseofformaldehydefromth
8、etextilesubstratecanbemeasuredby:STANDARDTESTMETHODSJapanLaw112(ENISO14184-1)AATCC-112Theformaldehydecontentbelow20mg/kgcannotbeshowntobecausedbytheformaldehydewhichwasreleasedbythecrosslinkingreagent.ALTERNATIVETESTMETHOD
