Bi and Tri Metal Salt Combinations plus Colorants Extracted from Timber Industry Waste as Effective Dyeing Materials to Produce Novel Shades on Wool

ABSTRACT

This study was undertaken to propose alternative use for teak leaves, a timber industry byproduct, as potential dyeing source for wool fibers. The coloring potential of anthraquinone colorants from teak leaves were studied on wool with pre-mordanting method using double and triple mix metal salt combinations (ferrous sulphate, stannous chloride and potassium aluminum sulphate) as mordants. Thirty-six sober and elegant shades were developed on wool by varying the type of metal involved in combination as well as concentration of the dye. The hue of color developed ranged from light orange—brown to dark brown. The color strength (K/S) has been found to be very good in dyed woolen yarn samples and particularly was highest for iron + alum combination. Color fastness with respect to light exposure washing, rubbing for the developed shades ranged between good to very good, which confirmed the possibility of using waste leaves of Tectona grandis as a source of effective brown natural dye.

摘要

本研究旨在提出将柚木叶（一种木材工业副产品）用作羊毛纤维的潜在染色源。本文使用双重和三重金属盐组合（硫酸亚铁、氯化亚锡和硫酸铝钾）作为媒染剂，利用预媒染方法研究了来自柚木叶的蒽醌着色剂对羊毛的着色潜力。通过改变金属盐组合中所涉金属的类型及染料浓度，在羊毛上产生了三十六种明亮和优雅的色调。所产生的色调范围从浅橙棕色至深棕色。研究发现，在染色的羊毛纱样品中颜色强度（K/S）非常好，特别是铁+铝组合产生了最高的颜色强度。所形成色调的光、洗涤和摩擦色牢度在良好与非常好之间，这证实了使用柚木废叶作为有效棕色天然染料源是可能的。

Keywords:

• Shades
• fastness
• wastes
• colorants
• dyeing
• metal salts

关键词:

• 色调
• 牢度
• 废物
• 着色剂
• 染色
• 金属盐

Funding

Financial support provided by University Grants Commission, Govt. of India; through BSR Research Fellowship in Sciences for Meritorious Students (Shahid-ul-Islam, Luqman Jameel Rather and Mohd Shabbir) and Central University Non-NET Fellowship for Ph.D. students (Mohd Nadeem Bukhari) is highly acknowledged.