Potential of hardwood kraft lignin as a bio-based dye for cotton fabrics

IF 1.3 4区农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD

Bioresources Pub Date : 2023-12-14 DOI:10.15376/biores.19.1.973-984

J. Mun, Sung Phil Mun

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Abstract

The dyeing characteristics of hardwood kraft lignin (KL) were investigated on cotton fabrics, assessing its potential as a sustainable and environmentally friendly dye. Dyeability was evaluated by varying the KL concentrations, temperature, and time. An aqueous solution of Na2CO3 (1.0%) as the dye bath and a fabric-to-liquor ratio of 1:50 were used. Cationizing effects were studied using (3-chloro-2-hydroxypropyl) trimethylammonium chloride (CHPTAC), and the mordanting effects of various mordants were also evaluated. Post-mordanting was performed with FeSO4, FeCl2, Fe-lactate (Fe-lac), MgSO4, CuCl2, CuSO4, and Al2(SO4)3. A mordant concentration of 1 mM o.w.f. (0.5 mM for Al2(SO4)3), with a liquor ratio of 1:30, at 60 °C for 30 min were employed. Suitable dyeing conditions were 2.0% o.w.b., 90 °C, and 90 min, resulting in a brownish color of the cotton fabric. The fabrics exhibited a range of light brown to light grayish brown colors and showed lighter colors than the untreated fabrics when mordanted with MgSO4 and Al2(SO4)3. The color difference (ΔE) between cationized and uncationized cotton fabrics was 3.48. From the colorfastness assessment, KL-dyed cotton fabric showed good rubbing and washing fastness for staining, but poor light and washing fastness for fading.

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硬木牛皮纸木质素作为棉织物生物基染料的潜力

研究了硬木牛皮纸木质素（KL）在棉织物上的染色特性，评估了其作为一种可持续环保染料的潜力。通过改变 KL 的浓度、温度和时间来评估其染色性。染浴采用 Na2CO3（1.0%）水溶液，织物与染料的比例为 1:50。使用（3-氯-2-羟基丙基）三甲基氯化铵（CHPTAC）研究了阳离子化效果，还评估了各种媒染剂的媒染效果。使用 FeSO4、FeCl2、乳酸铁（Fe-lac）、MgSO4、CuCl2、CuSO4 和 Al2(SO4)3 进行了后媒染。媒染剂浓度为 1 mM o.w.f.（Al2(SO4)3 为 0.5 mM），液比为 1:30，温度为 60 °C，时间为 30 分钟。合适的染色条件为 2.0% o.w.b.、90 °C 和 90 分钟，结果棉织物呈棕色。织物呈现出从浅棕色到浅灰褐色的一系列颜色，与未处理的织物相比，用 MgSO4 和 Al2(SO4)3 进行媒染的织物颜色更浅。阳离子化和未阳离子化棉织物之间的色差（ΔE）为 3.48。从色牢度评估来看，KL 染色棉织物的耐摩擦色牢度和耐洗色牢度较好，但耐光牢度和耐洗色牢度较差。

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来源期刊

Bioresources 工程技术-材料科学：纸与木材

CiteScore

2.90

自引率

13.30%

发文量

397

审稿时长

2.3 months

期刊介绍： The purpose of BioResources is to promote scientific discourse and to foster scientific developments related to sustainable manufacture involving lignocellulosic or woody biomass resources, including wood and agricultural residues. BioResources will focus on advances in science and technology. Emphasis will be placed on bioproducts, bioenergy, papermaking technology, wood products, new manufacturing materials, composite structures, and chemicals derived from lignocellulosic biomass.