20.500.12556/DKUM-67870 Vpliv obdelave na fibriliranje liocel vlaken Fibrillation of Lyocell fibres due to different treatment conditions Razlike procesov pridobivanja različnih regeneriranih celuloznih vlaken povzročajo različno morfološko zgradbo vlaken, ki se kaže tudi v različnem nagnjenju k fibriliranju. Zaradi visoke orientacije in kristalinosti vlaken kažejo liocel vlakna močno težnjo k fibriliranju, t.j. cepljenju fibrilov vzdolž vlaken. Nabrekanje in mehanske obremenitve ta pojav pospešijo in ojačajo. Zelo tanki fibrili na površini vlaken in njihovo kodranje povzročijo povečano površino vlaken in s tem spremembo površine tkanin. Metoda, ki so trenutno na razpolago za ocenitev stopnje fibriliranja so še nepopolne. Spremembo površine vlakna kot funkcijo fibriliranja lahko zaznamo optično ali po spremembah otipa. V prispevku smo predstavili novo metodo zasledovanja fibriliranja s spremembo optičnih lastnosti tkanin, in sicer Tencel vlaken. Z obdelavo in kvantitativno analizo mikroskopskih slik smo določali spremembe oblike in velikosti por v tkanini, ki so nastale kot posledica različnih postopkov obdelane, n. pr. fibriliranje surove tkanine, encimatska obdelava in zamreženje liocel vlaken. The differences in the man-made cellulose fibre forming processes produce some varieties in the morphological structure of fibres, which shows in fibres' different tendency to fibrillate, i.e. to split along the fibre axis. The basic parameters connected with the high degree of crystallinity and orientation of lyocell fibres are also the reason for lyocell fibres' high tendency to fibrillate. Fibre swelling and mechanical stress promote this effect. Very fine fibrils on the fibre surface and their crimping increase the fibre surface and thereby influence the surface changes of the fabric. Some methods for following the formation of fibrils, their density and homogeneity have been proposed, but have proved to be insufficient. The changes of the fibre surface due to fibrillation can be followed optically or by handle changes. In the paper a new method for observing the changes of optical properties of lyocell fibres influenced by fibre fibrillation is given. The analyses were performed on Tencel fabrics. Processing and quantitative analysis of microscopic images was involved for studying the form and dimensions of fabric pores that were produced by different treatments, like raw fabric fibrillation, enzyme treatment and crosslinking of lyocell fibres. tekstilna industrija liocel vlakna Tencel fibriliranje mikroskopija obdelava slik kvantitativna analiza slik textile industry lyocell fibres Tencel fibrillation microscopy microscopic image processing quantitatve analysis of microscopic images true false true Slovenski jezik Angleški jezik Znanstveno delo 2017-09-01 09:24:19 2017-09-01 09:25:41 2022-08-01 14:33:12 2019-07-11 16:23:56 2000 0 0 str. 337-342 št. 9/10 Letn. 43 2000 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 0351-3386 677.463.017 763396 5885462 0351-3386 URN:SI:UM:DK:6B1F9HRG Tekstilec_2000_Strnad,_Sfiligoj-Smole_Vpliv_obdelave_na_fibriliranje_liocel_vlaken.pdf Tekstilec_2000_Strnad,_Sfiligoj-Smole_Vpliv_obdelave_na_fibriliranje_liocel_vlaken.pdf 1 19A1C1C34B8AE7CC9BAC1EFC41FBB239 6aab2fcfdc3148dbf8e20b073aedbfae177c44c3165fe7795b44afc9dce9fdc9 9c8cc22c-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/765ad4d5-ffbe-435c-9d58-c807e2676589 https://dk.um.si/Dokument.php?lang=slv&id=116725 http://www.tekstilec.si/wp-content/uploads/2000/09/Fibrillation-of-Lyocell-Fibres-due-to-Different-Treatment-Conditions.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=116724 Fakulteta za strojništvo 0 0 0