Chromed Leather Dyeing Peculiarities when Deliming with Peracetic Acid
The research was aimed to investigate the influence of deliming with peracetic acid on leather dyeing kinetics. Hydrophobic <em>C.I. Acid Red 213 </em>and hydrophilic<em> </em><em>C.I.</em> <em>Acid Red 423 </em>dyes were used. Sorption of dye depends...
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| Format: | Article |
| Language: | English |
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Kaunas University of Technology
2013-05-01
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| Series: | Medžiagotyra |
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| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/4431 |
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| author | Kęstutis BELEŠKA Virgilijus VALEIKA Justa ŠIRVAITYTĖ Violeta VALEIKIENĖ |
| author_facet | Kęstutis BELEŠKA Virgilijus VALEIKA Justa ŠIRVAITYTĖ Violeta VALEIKIENĖ |
| author_sort | Kęstutis BELEŠKA |
| collection | DOAJ |
| description | The research was aimed to investigate the influence of deliming with peracetic acid on leather dyeing kinetics. Hydrophobic <em>C.I. Acid Red 213 </em>and hydrophilic<em> </em><em>C.I.</em> <em>Acid Red 423 </em>dyes were used. Sorption of dye depends on hydrophobicity/hydrophility of dye and dyeing temperature. Equilibrium of process is reached faster using hydrophobic <em>C.I. Acid Red 213 </em>at 45<sub> </sub>ºC. However, both control and experimental leather fibres adsorb more hydrophilic dye <em>C.I.</em> <em>Acid Red 423 </em>and this fact does not depend on temperature. The diffusion coefficient of dye <em>C.I. Acid Red 423 </em>calculated according to Weisz model is higher when dyeing conventional leather. The change of deliming method has influence on chromed leather dyeing but this influence is not significant. The adsorption ability of control leather fibres at 30<sub> </sub>ºC and 45<sub> </sub>ºC is higher using both dyes as compared to the dyeing the experimental one. The increase of dyeing temperature increases the adsorption ability independently on the sort of leather fibres. Such dependence of the adsorption ability on the temperature shows that hydrophobic action and van der Waals forces prevail between dye and fibres during dyeing process. The Gibbs energy changes show that adsorption of both dyes by leather fibres independently on their sort is a spontaneous process. The affinity of both dyes to conventional leather fibres is higher comparing with experimental one. The change of enthalpy is positive in all cases, and it means that the driving force of the dyeing is the change of entropy.<p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.19.2.4431">http://dx.doi.org/10.5755/j01.ms.19.2.4431</a></p> |
| first_indexed | 2024-04-13T23:39:04Z |
| format | Article |
| id | doaj.art-7f445efaeb7842fbaa801308cd2dae72 |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-04-13T23:39:04Z |
| publishDate | 2013-05-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-7f445efaeb7842fbaa801308cd2dae722022-12-22T02:24:37ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892013-05-0119215215710.5755/j01.ms.19.2.44312172Chromed Leather Dyeing Peculiarities when Deliming with Peracetic AcidKęstutis BELEŠKA0Virgilijus VALEIKA1Justa ŠIRVAITYTĖ2Violeta VALEIKIENĖ3Kaunas University of TechnologyKaunas University of TechnologyKaunas University of TechnologyKaunas University of TechnologyThe research was aimed to investigate the influence of deliming with peracetic acid on leather dyeing kinetics. Hydrophobic <em>C.I. Acid Red 213 </em>and hydrophilic<em> </em><em>C.I.</em> <em>Acid Red 423 </em>dyes were used. Sorption of dye depends on hydrophobicity/hydrophility of dye and dyeing temperature. Equilibrium of process is reached faster using hydrophobic <em>C.I. Acid Red 213 </em>at 45<sub> </sub>ºC. However, both control and experimental leather fibres adsorb more hydrophilic dye <em>C.I.</em> <em>Acid Red 423 </em>and this fact does not depend on temperature. The diffusion coefficient of dye <em>C.I. Acid Red 423 </em>calculated according to Weisz model is higher when dyeing conventional leather. The change of deliming method has influence on chromed leather dyeing but this influence is not significant. The adsorption ability of control leather fibres at 30<sub> </sub>ºC and 45<sub> </sub>ºC is higher using both dyes as compared to the dyeing the experimental one. The increase of dyeing temperature increases the adsorption ability independently on the sort of leather fibres. Such dependence of the adsorption ability on the temperature shows that hydrophobic action and van der Waals forces prevail between dye and fibres during dyeing process. The Gibbs energy changes show that adsorption of both dyes by leather fibres independently on their sort is a spontaneous process. The affinity of both dyes to conventional leather fibres is higher comparing with experimental one. The change of enthalpy is positive in all cases, and it means that the driving force of the dyeing is the change of entropy.<p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.19.2.4431">http://dx.doi.org/10.5755/j01.ms.19.2.4431</a></p>http://matsc.ktu.lt/index.php/MatSc/article/view/4431leatherperacetic acidchromingdyeingadsorptiondiffusionkineticsthermodynamics |
| spellingShingle | Kęstutis BELEŠKA Virgilijus VALEIKA Justa ŠIRVAITYTĖ Violeta VALEIKIENĖ Chromed Leather Dyeing Peculiarities when Deliming with Peracetic Acid Medžiagotyra leather peracetic acid chroming dyeing adsorption diffusion kinetics thermodynamics |
| title | Chromed Leather Dyeing Peculiarities when Deliming with Peracetic Acid |
| title_full | Chromed Leather Dyeing Peculiarities when Deliming with Peracetic Acid |
| title_fullStr | Chromed Leather Dyeing Peculiarities when Deliming with Peracetic Acid |
| title_full_unstemmed | Chromed Leather Dyeing Peculiarities when Deliming with Peracetic Acid |
| title_short | Chromed Leather Dyeing Peculiarities when Deliming with Peracetic Acid |
| title_sort | chromed leather dyeing peculiarities when deliming with peracetic acid |
| topic | leather peracetic acid chroming dyeing adsorption diffusion kinetics thermodynamics |
| url | http://matsc.ktu.lt/index.php/MatSc/article/view/4431 |
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