Production of dye from green and brown walnut shells for leather coloration

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dc.contributor.authorDoğan-Sağlamtimur, Neslihan
dc.contributor.authorTuraç, Ersen
dc.contributor.authorArabacioğlu, Ruhsar
dc.contributor.authorÇivioğlu, Tuğba
dc.date.accessioned2024-11-07T10:40:11Z
dc.date.available2024-11-07T10:40:11Z
dc.date.issued2017
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractNowadays, it is observed that there is an increasing approach to the use of natural substances instead of synthetic ones. As the synthetic materials and products are more complex in comparison to natural substances, it will take a long time to complete their natural cycles and return to nature, thus, causing a lot of environmental pollution.Green and brown shells of walnuts that are not only valuable crops but also important components of the Mediterranean dietare by-products of the walnut production, having scarce use (especially green shell). Thus, using shells as a source of dye will increase the value of the walnut production, as well as offering utilization for a by-product, which is produced in large quantities. The purpose of this study is to produce dye from wastegreen and brown walnut shells, compare quality of these dyesand apply themseparately in untreated leather. Before chemical processes, the walnut shells were chopped in a grinding mill. They were dried in an oven toeliminate the humidity and extracted inSoxhlet apparatus by using ethanol solution. Then,the ethanol solution was evaporated in controlled way and the produced dyes weremordanted by using potassium aluminium sulphate (PAS). The dyes were analysed by TLC and UV-Vis, whereas dyed leathers were analysed by colorfastness test. The present study showed that brown walnut shell dye having higher color values was better for yield, dye penetration and fastness properties compared to green walnut shell dye.Luminous effect was observed when these dyes were applied in leather. It is interesting, uncommon and economically valuable for leather industry.This study would be a positive step to meet the need of leather industry in Turkey and a good example for cleaner production.
dc.identifier.doi10.21533/pen.v5i2.135
dc.identifier.endpage230
dc.identifier.issn2303-4521
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85035339644
dc.identifier.scopusqualityQ2
dc.identifier.startpage224
dc.identifier.urihttps://doi.org/10.21533/pen.v5i2.135
dc.identifier.urihttps://hdl.handle.net/11480/11485
dc.identifier.volume5
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherInternational University of Sarajevo
dc.relation.ispartofPeriodicals of Engineering and Natural Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectDye
dc.subjectEnvironment
dc.subjectLeather Reuse
dc.subjectWalnut
dc.subjectWaste
dc.titleProduction of dye from green and brown walnut shells for leather coloration
dc.typeArticle

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