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Title:Hidroliza reaktivnih barvil pri barvanju lanu v odvisnosti od vrste procesa
Authors:Fakin, Darinka (Author)
Ojstršek, Alenka (Author)
Doliška, Aleš (Author)
Files:.pdf Tekstilec_2007_Fakin,_Ojstrsek,_Doliska_Hidroliza_reaktivnih_barvil_pri_barvanju_lanu_v_odvisnosti_od_vrste_procesa.pdf (405,58 KB)
MD5: 0ABFB4776164CF6B5AF7F30874F3CD6C
 
URL http://www.tekstilec.si/wp-content/uploads/2007/07/Hidroliza-reaktivnih-barvil-pri-barvanju-lanu-v-odvisnosti-od-vrste-procesa.pdf
 
Language:Slovenian
Work type:Scientific work (r2)
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:Lanena vlakna (Linum ussitatissimum) spadajo v skupino naravnih celuloznih vlaken, njihova kakovost pa je odvisna od sorte lanu, postopkov ločevanja vlaken od drugih delov stebla, predobdelave, barvanja in postopkov plemenitenja. Kadar laneni izdelki zahtevajo vrhunske obstojnosti, uporabljamo za barvanje reaktivna barvila, ki jih odlikujejo razmeroma enostaven postopek barvanja, briljantni barvni toni ter zaradi nastanka kovalentnih vezi med vlaknom in barvilom tudi dobre mokre obstojnosti. Postopki predobdelave in beljenja lanenih vlaken vplivajo zaradi razgradnje primesi na hidrofilnost, hkrati pa tudi na fizikalno- kemijske in barvalne lastnosti vlaken. Kinetične in termodinamične zakonitosti procesa barvanja le-teh so odvisne tudi od kemijske strukture barvil, različnih tehnoloških postopkov in parametrov barvanja. Pogosto težavo pri barvanju z reaktivnimi barvili predstavlja močna obarvanost odpadnih barvalnih kopeli, kar je predvsem posledica hidrolize reaktivnih barvil med procesom barvanja. Zato smo se v raziskavi osredotočili na vpliv postopka barvanja (izčrpavanje in impregnacija) in reaktivnega sistema barvil na hidrolizo reaktivnih barvil pri barvanju lanene tkanine. Iz rezultatov dela izhaja, da je količina hidroliziranih in nevezanih barvil odvisna od vrste barvila, njegove kemijske strukture, velik pomen pa ima tudi primeren izbor postopka barvanja.
Keywords:lan, barvanje lanu, vinilsulfonska reaktivna barvila, bireaktivna barvila, hidroliza, spektroskopija, barvna metrika
Year of publishing:2007
Number of pages:str. 173-186
Numbering:št. 7/9, Letn. 50
ISSN:0351-3386
UDC:677.11.027.423.4
ISSN on article:0351-3386
COBISS_ID:12025878 New window
NUK URN:URN:SI:UM:DK:GDNUEQPA
Views:433
Downloads:75
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Record is a part of a journal

Title:Tekstilec
Publisher:Zveza inženirjev in tehnikov tekstilcev, Splošno združenje tekstilne industrije
ISSN:0351-3386
COBISS.SI-ID:763396 New window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:31.08.2017

Secondary language

Language:English
Title:Hydrolysis of reactive dyes in flax dyeing, depending on the type of process
Abstract:Flax fibres (Linum ussitatissimum) belong to the group of natural cellulose fibres, and their qualities depend on the flax species, fibre/ steam parts' separation methods, pre-treatment, dyeing and finishing. When flax garments need to have top-colour fastness, reactive dyes are used for dyeing. Reactive dyes are simple to use and produce brilliant hues, with good wet-colour fastness due to the covalent bonds between the fibres and the dye. Pre-treatment and bleaching of flax fibres influences their hydrophilicity, physicalchemical, and dyeing properties. The kinetic and thermodynamic nature of a dyeing process also depends on the dye's chemical structure, various technological procedures, and the dyeing parameters. A common problem resulting from reactive dyeing is highly-colourated waste dye-baths that result from dye hydrolysis during the dyeing procedure. Therefore, the presentresearch focused on the influences of two dyeing processes (exhaustion and impregnation) and two reactive dye systems on dye hydrolysis during flax fabric dyeing. The obtained results indicated that the amount of hydrolysed and unbound dyes depends primarily on the type of dye and its chemical constitution, and also on selecting an appropriate dyeing process.
Keywords:flax, dyeing, vinylsulphone reactive dyes, bi-reactive dyes, hydrolysis, spectroscopy, colourimetry


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