Sustainable Antimicrobial and Antioxidant Finishing and Natural Dyeing Properties of Wool Yarn Treated with Chitosan-poly(amidoamine) Dendrimer Hybrid as a Biomordant

ABSTRACT

The use of natural dyes on textiles is developing due to the growing of environmental awareness and avoidance in production of some unsafe synthetic dyes. Pretreatment of wool yarn with chitosan-poly (amidoamine) dendrimer (Ch-PAMAM) hybrid for improving the antimicrobial, antioxidant, and dyeing properties of cochineal and madder as the high consumption natural dyes for dyeing of wool yarns was studied. It was found that cochineal and madder dye exhaustion on treated wool yarn as compared with raw wool yarn were increased by 22% and 10%, respectively. Results indicated that the equilibrium concentrations of cochineal and madder on the treated samples were achieved at 20% o.w.f. and 125% o.w.f., respectively. Furthermore, antioxidant and antimicrobial activities of treated samples were excellent (>99%). It can be concluded that Ch-PAMAM hybrid can be applied on wool yarns as the antioxidant, antimicrobial, and bio-mordant agent to achieve higher natural dye absorption, and eliminate the metal mordants and acid from the dyeing of natural dyes on the wool.

摘要

由于环保意识的增强和避免生产某些不安全的合成染料,天然染料在纺织品上的应用正在发展. 研究了壳聚糖-聚氨基胺树状大分子(Ch-PAMAM)杂化物对羊毛纱线的预处理,以改善胭脂虫和海草作为羊毛纱线染色的高消耗天然染料的抗菌、抗氧化和染色性能. 结果表明,与原毛纱线相比,处理后的羊毛纱线上胭脂虫和马德尔染料的上染率分别提高了22%和10%. 结果表明,在20%o.w.f.和125%o.w.f.条件下,处理样品上胭脂虫醛和马德尔的平衡浓度分别达到. 此外,经处理样品的抗氧化和抗菌活性极佳(>99%). 可以得出结论,Ch-PAMAM杂化物可作为抗氧化剂、抗菌剂和生物媒染剂应用于羊毛纱线上,以实现更高的天然染料吸收率,并消除天然染料在羊毛上染色时产生的金属媒染剂和酸.

KEYWORDS:

• Natural dyes
• antimicrobial
• antioxidant
• wool dyeing
• chitosan-dendrimer

关键词:

• 天然染料
• 抗菌剂、
• 抗氧化剂、
• 羊毛染色
• 壳聚糖树状大分子

Acknowledgments

This research paper has been extracted from Yeganeh Golpazir-Sorkheh’s master thesis, entitled “Modification of wool with chitosan-PAMAM dendrimer hybrid and study on the dyeing and antimicrobial properties using natural dyes”, fulfilled under direction of Siyamak Safapour and Mousa Sadeghi-Kiakhani at Tabriz Islamic Art University. Hereby, authors would like to express their sincere gratitude for “Tabriz Islamic Art University” and “Institute for Color Science and Technology” for all the supports.

Disclosure statement

No potential conflict of interest was reported by the author(s).