A Single Step Enzymatic Modification of Wool Textile to Improve Its Various Properties
نویسندگان
چکیده
Wool textiles have been coated with nordihydroguaiaretic acid (NDGA) to improve their performance at use. This water insoluble phenolic compound has been grafted on wool through a laccase enzyme catalyzed reaction in an 80/20 (v/v, %) aqueous-ethanol mixture. The capacity of laccase to oxidise NDGA in this aqueous-organic medium has been studied electrochemicaly. FTIR spectra, together with the SEM images of the enzymatically-coated fabrics confirmed the covalent grafting of NDGA on wool. This one step enzymatic coating process improved the physical and mechanical properties of wool fabrics such as shrink resistance, crease recovery angle and tensile strength by respectively 14, 5 and 24 %. Furthermore, the NDGA imparted to textile material both strong antioxidant activity expressed in 85 % inhibition of DPPH and protection against UV-radiation.
منابع مشابه
Improving Colorant Absorption from Pistachio Hulls on Wool Fiber Using Protease Enzyme
Nowadays, textile processing based on biotechnology has gained its importance in the view of stringent environmental and industrial safety conditions. The use of protease enzymes in protein fibers to improve some physical and mechanical properties is particularly interesting. In this research, wool yarns were first treated with different concentrations of protease enzymes in aqueous solution in...
متن کاملبهبود خواص فیزیکی نخ پشمی ایرانی مورد استفاده در فرش دستباف توسط عملیات زیست سازگار
Special properties of Iranian wool such as elasticity compared with Merino wool leads to more popularity of Persian carpet at an international level. By using of finishing process it is possible to improve some of the physical properties of wool fibers such as fleece modification, increasing of lightness and whiteness and producing a smoother surface that result a better quality carpet. In this...
متن کاملUsing Eggplant Skin as a Source of Fruit Waste Colorant for Dyeing Wool Fibers
Today, natural colorants are emerging globally due to their safety and environmental friendly characteristics. Natural dyes have been employed in dyeing Persian carpet piles for many years. Food and fruit industry wastes are one of the main sources of colorants which can be employed for textile coloration. Eggplant (Solanum melongena), a member of the family Solanaceae, is used in food recipes....
متن کاملColorimetric properties of wool dyed with Cochineal: Effect of Dye-bath PH
In the present work an evaluation was carried out on the effect dye-bath pH and mordant type on the obtained shades and fastness properties in wool dyeing with cochineal. In this way wool samples were first mordanted with four different mordants and subsequently dyed with cochineal at different levels of dye-bath pH. Colorimetric evaluations were carried out and fastness properties of the dyed ...
متن کاملSaffron Petals, a by-product for dyeing of wool fibers
The dyeing of wool fibers using saffron petals as a natural dye has been studied for first time in this paper. Saffron petal is one of the by-products of fields which are thrown away after harvesting while they can possibly be used. A series of dyeing formulation prepared with saffron petals and different mordants and the mordant effect on hue, light and wash fastness of dyed fibers were invest...
متن کامل