POTENTIAL APPLICATION OF HORSE CHESTNUT (Aesculus hippocastanum L.) EXTRACTS IN DOUBLE FACE PRODUCTION

Abstract

Aesculus hippocastanum L, known as horse chestnut, is generally used for therapeutic, medicinal and pharmaceutical applications and has large seed shells containing aesculin which is responsible for the dyeing property. Due to the lack of information on dyeing characteristics of horse chestnut extracts in leather and also textile engineering field, ecofriendly dyeing process of leathers with the extracts of horse chestnut seed shells has gained an interest. Therefore, in the study the dyeing properties of double face leathers with extracts of Aesculus hippocastanum L were investigated. Seed shells of A. hippocastanum were extracted with sodium hydroxide in different concentrations and the extraction yields were determined. In accordance with extraction results, the horse chestnut extracts were used for the dyeing process of double face leathers. To evaluate the effect of A. hippocastanum extract on dyeing properties of double face leathers, the proportions of the extracts were differentiated. The quality performance of dyed leathers was investigated in terms of colour measurements and to-and-fro rubbing fastness characteristics. The colour measurements were determined with Minolta CM-3600A spectrophotometer and to-and-fro rubbing fastness was examined in accordance with TS EN ISO 11640 standard. The results revealed that A. hippocastanum extract could be used as newly adapted natural dye stuff in eco-friendly double face production.

Keywords

• dyeing
• leather
• natural colorants
• Aesculus hippocastanum L
• wool