20.500.12556/DKUM-10944 KEMOMETRIJSKA KARAKTERIZACIJA KAKOVOSTI HIDROOLEOFOBIRANEGA NUBUKA CHEMOMETRICS QUALITY CHARACTERIZATION OF WATER AND OIL REPELLENT NUBUCK Namen dela je izbrati najboljši tehnološki postopek izdelave pralnega hidroolefobiranega nubuka najboljše kakovosti. Hidrooleofobirani obutveni nubuk smo testirali na pranje in sušenje v pralno — sušilnem stroju za običajno domačo uporabo, uporabili smo program in sredstvo za pranje za občutljivega perila. Testiranja po takšnem enkratnem in trikratnem pranju in sušenju so vsebovala analize drgnjenja po metodah Veslic in Crockmeter, Spray test, Ballyjev penetrometrični test, vpijanje vodne kaplje, testiranje hidrofobnosti in oleofobnosti po metodi 3M pred in po abraziji, določevanje vsebnosti lipofilnih snovi z ekstrakcijo z diklorometanom, določevanje pH vodnega ekstrakta, določevanje paroprepustnosti ter meritve skrčenja, spremembe barve in oprijema po pranju in sušenju.Za ovrednotenje rezultatov merjenih parametrov smo uporabili osnovne statistične metode kot so povprečna vrednost in mediana, standardni odmik in relativni standardni odmik in medsebojne korelacije parametrov, in napredne kemometrijske metode kot so metoda glavnih osi (PCA), metoda analize grup (CA) in metoda linearne diskriminantne analize (LDA). Water and oil repellent shoe nubuck was tested before and after multiple washing and drying in domestic laundry machine. Programs and detergents for sensitive garments were used. Applied tests were rub fastness by Veslic and Crockmeter, Spray test, Ballys dynamic penetrometer test, water drop test, 3M water and oil repellency before and after the abrasion, determination of fatty substances by extraction method using dichloromethane, pH determination of aqueous extract from leather, determination of water vapour permeability, shrinkage measurements and softness, and colour fastness evaluation after washing and drying. The aim of the thesis is to select the best waterproof technology for preparing best quality washable nubuck. For handling the results of measuring parameters different chemometric methods were employed, such as basic statistical methods for the determination of mean and median values, standard deviations, minimal and maximal values of measured parameters and their mutual correlation coefficients, and advanced chemometrics methods like the principal component analysis (PCA), cluster analysis (CA), and linear discriminant analysis (LDA). USNJE NUBUK HIDROOLEOFOBNOST PRALNOST DRGNJENJE SPRAY TEST PENETROMETER 3M TEST METODA GLAVNIH OSI METODA ANALIZE GRUP METODA LINEARNE DISKRIMINANTNE ANALIZE LEATHER NUBUCK OIL AND WATER PEPELLENT WASHABILITY TESTING RUB FASTNESS SPRAY TEST PENETROMETER 3M TEST PRINCIPAL COMPONENT ANALYSIS CLUSTER ANALYSIS LINEAR DISCRIMINANT ANALYSIS true true false [B. Geohelli] Slovenski jezik Angleški jezik Diplomsko delo 2009-06-16 22:08:49 2009-12-22 09:42:10 2022-04-11 23:19:14 2022-04-17 03:20:46 2009 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 543.27:543.54(043.2) 13341206 URN:SI:UM:DK:NYRG9KXD VS_Geohelli_Bostjan_2009.pdf VS_Geohelli_Bostjan_2009.pdf 1 E3D091055CA718843E40DFB2B8B81DC3 924479825e38095d24cf6586a8c33f3496084ad3b8e36fa1aeff762e90ab2d72 f9047a83-7c02-11eb-bb7a-00155d0001ca 20.500.12556/dkum/8bcfed97-cad4-475a-9cb9-9f888c1d88b0 https://dk.um.si/Dokument.php?lang=slv&id=9357 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0