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首页> 外文期刊>Journal of Cleaner Production >Sustainable and cleaner microwave-assisted dyeing process for obtaining eco-friendly and fluorescent acrylic knitted fabrics
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Sustainable and cleaner microwave-assisted dyeing process for obtaining eco-friendly and fluorescent acrylic knitted fabrics

机译：可持续，更清洁的微波辅助染色工艺，可获取环保和荧光丙烯酸针织面料

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摘要

Synthetic garments pose significant environmental and human risks, which are further increased by the presence of synthetic dyes. As synthetic fibers cannot be eliminated, steps need to be taken in order to improve their sustainability. The paper presents a sustainable and cleaner microwave (MW)-assisted process of dyeing acrylic knitted fabrics with natural dyes based on curcumin extracted from turmeric powder (TP). The process is a novelty because it leads to fluorescent acrylic fabrics. The curcumin was extracted from TP, with or without 0.1 mL solvent. Based on the absorption curves in the ultraviolet visible domain, the analysis indicates that 100 g of TP contains 3.6 g of pure curcumin. The factors influencing the MW -assisted extraction are presented and discussed. The eco-friendly dyeing was performed in the presence of MW, using only freshly extracted dyes, no additives. The research investigates the effects of the concentration of natural dyes (5-20%), presence of solvents, dyeing time (2-15 min), temperature gradient and nature of the textile support on color intensity (K/S) and CIELab measurements. Spectroscopy analyses highlight the effects of the MW treatment on the Melana and Dralon L samples and on two pretreated samples subjected to grafting and saponification. The presence of MW modifies the internal structure of the fibers, while the chemical pretreatments generate chemical modifications/functionalizations. The advantages of the cleaner MW-assisted process refer to the ease of application, eco-friendly process, shorter duration, low consumption of chemicals, leading to uniform dyeing and high fluorescence, to a level that was never before obtained with natural dyes. The use of natural dyes improves the sustainability of the process in terms of recycling. (C) 2019 Elsevier Ltd. All rights reserved.
机译：合成服装构成重大的环境和人类风险，合成染料的存在进一步加剧了这种风险。由于无法消除合成纤维，因此需要采取措施以提高其可持续性。本文提出了一种可持续且更清洁的微波（MW）辅助工艺，该工艺利用基于从姜黄粉（TP）中提取的姜黄素的天然染料对丙烯酸类针织物进行染色。该方法是新颖的，因为它导致了荧光丙烯酸织物。姜黄素是从TP中提取的，有或没有0.1 mL溶剂。根据紫外可见域的吸收曲线，分析表明100克TP含有3.6克纯姜黄素。介绍并讨论了影响微波辅助萃取的因素。环保染色是在MW存在下进行的，仅使用新鲜提取的染料，不使用添加剂。这项研究调查了天然染料浓度（5-20​​％），溶剂的存在，染色时间（2-15分钟），温度梯度和纺织品载体性质对色强度（K / S）和CIELab测量的影响。光谱分析强调了微波处理对Melana和Dralon L样品以及两个经过接枝和皂化处理的预处理样品的影响。 MW的存在改变了纤维的内部结构，而化学预处理产生了化学修饰/功能化。清洁的MW辅助工艺的优势在于易于使用，环保工艺，持续时间短，化学药品消耗低，导致均匀的染色和高荧光，达到了天然染料从未达到的水平。天然染料的使用提高了回收过程的可持续性。 （C）2019 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Journal of Cleaner Production》 |2019年第20期|451-461|共11页
  • 作者

    Popescu Vasilica; Astanei Dragos-George; Burlica Radu; Popescu Andrei; Munteanu Corneliu; Ciolacu Florin; Ursache Mariana; Ciobanu Luminita; Cocean Alexandru;

  • 作者单位

    Gheorghe Asachi Tech Univ, Dept Chem Engn Text & Leather, 29 Blvd D Mangeron, Iasi 700050, Romania;

    Gheorghe Asachi Tech Univ, Dept Power Engn, 21-23 Blvd D Mangeron, Iasi 700050, Romania;

    Gheorghe Asachi Tech Univ, Dept Power Engn, 21-23 Blvd D Mangeron, Iasi 700050, Romania;

    Gheorghe Asachi Tech Univ, Dept Machine Design Mechatron & Robot, 61-63 Blvd D Mangeron, Iasi 700050, Romania;

    Gheorghe Asachi Tech Univ, Dept Machine Design Mechatron & Robot, 61-63 Blvd D Mangeron, Iasi 700050, Romania;

    Gheorghe Asachi Tech Univ, Dept Nat & Synthet Polymers, 73 Blvd D Mangeron, Iasi 700050, Romania;

    Gheorghe Asachi Tech Univ, Dept Knitting & Garment Engn, 29 Blvd D Mangeron, Iasi 700050, Romania;

    Gheorghe Asachi Tech Univ, Dept Knitting & Garment Engn, 29 Blvd D Mangeron, Iasi 700050, Romania;

    Alexandru Ioan Cuza Univ, Atmosphere Opt Spect & Lasers Lab LOASL, 11 Carol I Bld, Iasi 700506, Romania;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biochemical engineering; Eco-friendly; Curcumin; Microwaves; Fluorescence;

    机译：生化工程;生态友好;姜黄素;微波;荧光;

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