水性聚氨酯与直接/活性染料的共价掺入以增强颜色稳定性

IF 5.5 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-05-03 DOI:10.1016/j.jtice.2025.106155

Han-Wen Kuo, Chen-Chen Tsao, Xiao-Yuan Lin, Hsiu-Hui Chen

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引用次数: 0

摘要

本研究主要研究了商用直接染料和活性染料共聚水性聚氨酯（WPU）染料，包括直接黄142 （Y142）、直接红224 （R224）和活性蓝198 （B198）。目标是生产具有稳定性能的环保染料，适合可持续纺织应用。方法通过1HNMR和FTIR分析证实，染料与WPU的共聚效率达到95.75%。所得WPU染料的粒径为430 nm， zeta电位范围为-30.58 mV至-34.60 mV，确保了稳定的胶体分散。紫外可见光谱分析表明，与WPU结合后，染料的最大吸收波长几乎没有变化，保持了原有的颜色特征。重要发现涂层织物表现出优异的干摩擦牢度等级，超过4级，表明WPU染料与织物的特殊附着力。此外，提出了一种简单的废水处理方法，强调了这些WPU染料在可持续纺织品染色中的潜在应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Covalent incorporation of waterborne polyurethane with direct/reactive dyes for enhanced color stability

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Covalent incorporation of waterborne polyurethane with direct/reactive dyes for enhanced color stability

Background

This study focused on the development of copolymerized waterborne polyurethane (WPU) dyes by covalently bonding commercial direct and reactive dyes, including direct yellow 142 (Y142), direct red 224 (R224), and reactive blue 198 (B198). The objective was to produce eco-friendly dyes with stable properties suitable for sustainable textile applications.

Methods

The copolymerization process between the dyes and WPU achieved an impressive 95.75 % efficiency, as confirmed through ¹HNMR and FTIR analyses. The resulting WPU dyes exhibited particle sizes of <430 nm and zeta potentials ranging from –30.58 mV to –34.60 mV, ensuring a stable colloidal dispersion. UV–Visible spectral analyses demonstrated that the maximum absorption wavelengths of the dyes remained nearly unchanged after bonding with WPU, preserving their original color characteristics.

Significant findings

The coated fabrics demonstrated outstanding dry rubbing fastness ratings exceeding level 4, indicating exceptional adhesion of the WPU dyes to the fabric. Furthermore, a straightforward wastewater treatment method was proposed, highlighting the potential applications of these WPU dyes in sustainable textile dyeing.

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来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.