Coloration Technology最新文献_第2页

Fast prediction of optimal reaction conditions and dyeing effects of natural dyes on silk fabrics by lightweight integrated learning (XGBoost) models 利用轻量级集成学习（XGBoost）模型快速预测丝织物上天然染料的最佳反应条件和染色效果

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-06-10 DOI: 10.1111/cote.12777

Jie Chen, Yuyang Lin, Ying Liu

{"title":"Fast prediction of optimal reaction conditions and dyeing effects of natural dyes on silk fabrics by lightweight integrated learning (XGBoost) models","authors":"Jie Chen, Yuyang Lin, Ying Liu","doi":"10.1111/cote.12777","DOIUrl":"https://doi.org/10.1111/cote.12777","url":null,"abstract":"There is a lot of repetitive work involved in exploring the dyeing performance of natural dyes. To improve the experimental efficiency, save material, reduce time costs and shorten the research cycle, this study collects and analyses the literature data of 350 natural dye experiments to construct the Natural Dyes Dataset, and achieves rapid prediction of the optimal reaction conditions and dyeing effects of natural dyes using a lightweight integrated learning model. The size of the trained XGBoost model is only 562 KB; only the name of the dye and its approximate chemical composition need to be input to predict the results of the reaction environment pH, colour fastness to washing (CFW) and colour fastness to rubbing (CFR) of the natural dye on silk fabrics with the highest K/S in a very short time of 52 ms. The prediction accuracies for pH, CFW and CFR in the validation set are as high as 94.12%, 93.75% and 100%, respectively, and 77.78%, 91.67% and 83.33% for the real test set, with both validity and transferability. The integrated learning approach provides valuable guidance for exploring the dyeing performance of natural dyes with very small deployment costs and a very short inference time, expanding the possibilities of cross‐application of the disciplines of machine learning and textile dyeing.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable scouring of cotton using extracts from wood ash and soapnut and its optimisation by response surface methodology 使用木灰和皂角提取物对棉花进行可持续冲洗，并通过响应面方法对其进行优化

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-06-09 DOI: 10.1111/cote.12776

H. Patil, Ashok Athalye

{"title":"Sustainable scouring of cotton using extracts from wood ash and soapnut and its optimisation by response surface methodology","authors":"H. Patil, Ashok Athalye","doi":"10.1111/cote.12776","DOIUrl":"https://doi.org/10.1111/cote.12776","url":null,"abstract":"The non‐cellulosic impurities like oil, wax, and pectins present in the cotton fibre adversely impact wetting. Consequently, these impurities must be removed during the pretreatment process to prevent unevenness of subsequent coloration. Generally, an alkaline treatment with petroleum‐based synthetic surfactants is done, which is called scouring. This study attempts to develop an environmentally safe alternative using alkali from wood ash extract (WAE) and surfactant from soapnut extract (SE). The factors of WAE (10%–30%), SE (5–15 g/L), temperature (75–95°C), and time (20–60 min) were optimised using response surface methodology. A concentration of 20% WAE and 10 g/L SE at 90°C for 30 min was found to be adequate to remove impurities. The statistically optimised method showed good hydrophilicity, indicated by an average wetting time of 15 s, and 2.7% weight loss. The scoured fabric was subsequently dyed with natural dye extracted from marigold flowers and reactive dye. The scoured cotton was evaluated by weight loss, wettability, tensile strength, whiteness index, and colour value (K/S) and showed comparable results to conventional scouring.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141367100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Post‐modification of azo dyes using an α‐phenyl diazo ester for improving the colour fixation properties of polyurethane fibre 使用α-苯基重氮酯对偶氮染料进行后改性，以改善聚氨酯纤维的固色性能

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-06-04 DOI: 10.1111/cote.12769

Hua Jiang, Lulu Shi, Xiaokang Xie, Ye Wang

引用次数: 0

Redox kinetics of methylene green: Titanium trichloride as a novel photo redox agent 亚甲基绿的氧化还原动力学：作为新型光氧化还原剂的三氯化钛

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-05-30 DOI: 10.1111/cote.12753

Syed Muhammad Saqib Nadeem, Rehana Saeed

{"title":"Redox kinetics of methylene green: Titanium trichloride as a novel photo redox agent","authors":"Syed Muhammad Saqib Nadeem, Rehana Saeed","doi":"10.1111/cote.12753","DOIUrl":"https://doi.org/10.1111/cote.12753","url":null,"abstract":"The kinetics of the redox reaction of methylene green (MG) and the novel photo‐redox agent titanium trichloride (TiCl3) in water were investigated by real‐time spectrophotometric analysis of the change in absorbance of the reaction mixture at 655 nm. The novelty of this redox reaction is that the TiCl3 is an inorganic compound in contrast to the previously studied organic redox couples. The redox reaction was analysed in depth and the effects of the concentration of the TiCl3, MG, pH, dielectric constant, ionic strength, metal ions, and temperature on the reaction kinetics were observed. The rate of reaction had a direct relationship with the pH, dielectric constant, and ionic strength of the reaction medium, while an increase in temperature decreased the rate of reaction. The activation energy (Ea) was calculated by the Arrhenius relation, and the other thermodynamic parameters, such as enthalpy change of activation (∆H*), free energy change of activation (∆G*), and entropy change of activation (∆S*) were also evaluated to support the findings of the kinetic measurements. The presence of any reaction intermediate other than the species in the reaction mechanism was ruled out by the spectroscopic analysis of the reaction mixture and Michaelis–Menten plot while the absence of any free radicals was confirmed by the negative polyacrylamide test. A reaction mechanism for the redox reaction of MG+ and TiCl3 was proposed based on the different excited states of the MG+ involved in the reaction and the results of the product analysis. The decolourisation of MG by the TiCl3 is overall a second‐order reaction and is significantly affected by the pH of the reaction medium. The overall rate law for the redox reaction of MG and TiCl3 is as follows. ","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141189057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Colour gamut analysis of low‐cost dye‐sensitised solar cells using natural dyes 使用天然染料的低成本染料敏化太阳能电池的色域分析

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-05-08 DOI: 10.1111/cote.12767

Sanaz Shirahmad Haghighi, Razieh Jafari, Mozhgan Hosseinnezhad

{"title":"Colour gamut analysis of low‐cost dye‐sensitised solar cells using natural dyes","authors":"Sanaz Shirahmad Haghighi, Razieh Jafari, Mozhgan Hosseinnezhad","doi":"10.1111/cote.12767","DOIUrl":"https://doi.org/10.1111/cote.12767","url":null,"abstract":"Due to the increasing effects of greenhouse gases and environmental pollution, the need for new clean energies like solar energy attracts much attention. Although the characteristics and the efficiency of green photovoltaic devices have been researched, the colour gamut achievable from those devices has not been studied. This study investigates the colour gamut of low‐cost dye‐sensitised solar cells (DSSCs). To do this, 14 natural dye extracts were obtained from herbal resources including dragon fruit, blueberry, mango, radish, yellow rose, red cabbage, sour pomegranate, beetroot, olive, green cabbage pepper, eggplant, parsley, bramble and cherry, and employed as photosensitiser in solar cells. Then, the colorimetric attributes of the photosensitisers were studied in three‐dimensional (3D)‐colour space, that is, CIELab, CIELCH and CIE1931 chromaticity diagram. Additionally, the convex hull method was employed to determine the colour gamut boundary and the corresponding colour gamut volume. Results showed that the majority of samples benefited from approximately 3°–82° of hue angle in a*b* diagram of CIELab colour space and showed the yellowish to reddish tint effects. In CIELCH colour order system, cherry and parsley showed the lowest and highest lightness attributes while the chroma property of samples varied from minimum 1.2 for eggplant to maximum 60.2 for the dragon fruit. Moreover, the results of using the convex hull method showed the volume of 7.73 × 104 that is bounded by the colour gamut of 3D colour points over the CIELab colour space.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140936135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A comparative research on knitted fabrics washed with eco‐friendly detergent for different washing cycles 不同洗涤周期下使用环保洗涤剂洗涤针织物的比较研究

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-04-29 DOI: 10.1111/cote.12766

Vildan Sülar, Gülşah Ekin Kartal, Gözde Sezgin Şahin

{"title":"A comparative research on knitted fabrics washed with eco‐friendly detergent for different washing cycles","authors":"Vildan Sülar, Gülşah Ekin Kartal, Gözde Sezgin Şahin","doi":"10.1111/cote.12766","DOIUrl":"https://doi.org/10.1111/cote.12766","url":null,"abstract":"The laundering process stands as the most commonly employed method for the maintenance of textile products. This investigation focused on boron, a pivotal mineral resource for our nation, and aims to elucidate alterations in fabric properties, specifically about colour changes and pilling, after the utilisation of various washing detergents. Comparative analyses and assessments were conducted across three distinct washing cycles, employing three distinct detergents: a boron‐infused washing detergent, a standard detergent conventionally utilised in textile trials, and a widely adopted commercial detergent. The investigation encompassed three diverse fabric constituents—cotton, polyester, and viscose—subjected to scrutiny in terms of fabric parameters subsequent to 1, 5, and 25 washing cycles. Following the laundering processes conducted at 40°C, evaluations were conducted concerning the pilling degree and colour alteration of the fabrics. Consumer perception regarding colour alterations, and subjective colour assessments was undertaken with a panel of 10 individuals. Furthermore, the research delved into the stain removal efficacy of the boron‐infused washing detergent. To assess stain removal, all fabrics were intentionally stained with six diverse contaminants: ketchup, mayonnaise, coffee, sweetened coffee, tea, and sweetened tea. A post‐washing evaluation of stain conditions was carried out subjectively by an assembled arbitration committee. Over the course of 25 washing cycles, it was observed that the boron‐containing detergent notably diminished colour strength, particularly evident in polyester and cotton fabrics. Pilling outcomes indicated a decrease in pilling as the number of washing cycles increased. Boron‐containing detergent, denoted as detergent B, consistently demonstrated commendable stain removal properties, particularly on cotton fabric.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140831872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structure and material designs of stretchable electrochromic devices 可拉伸电致变色装置的结构和材料设计

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-04-29 DOI: 10.1111/cote.12764

Weigao Wang, Boqing Tian, Majiaqi Wu, Maoliang Jian, Lianqiao Yang

{"title":"Structure and material designs of stretchable electrochromic devices","authors":"Weigao Wang, Boqing Tian, Majiaqi Wu, Maoliang Jian, Lianqiao Yang","doi":"10.1111/cote.12764","DOIUrl":"https://doi.org/10.1111/cote.12764","url":null,"abstract":"Electrochromic materials are a significant class of optoelectronic functional materials that can change colour by adjusting the voltage periodically. In recent years, there has been rapid development in electrochromic technology. However, current research predominantly focuses on traditional rigid electrochromic devices (ECDs), typically using conductive glass substrates such as indium tin oxide. These rigid colour‐changing devices face significant challenges, including large thickness, low mechanical strength, and high cost, which hinder the advancement and commercialisation of electrochromic technology. With the rise of wearable devices and electronic skins, among other future technologies, flexible ECDs have garnered much attention due to their foldability, wearability, and even embeddability. They have emerged as a research hotspot in the field of electrochromism. As a further development direction of flexible ECDs, achieving stretchability poses higher difficulties as it requires maintaining high performance under large strains and even distortions. This article provides an overview of the latest advances in stretchable electrochromic devices (SECDs) from the perspectives of structural and material design. Regarding structural design, the ‘island‐bridge’ structure, the ‘longitudinal wave’ structure, and core‐shell structures are discussed. In terms of material design, the design schemes of substrate, conductive layer, electrochromic layer and electrolyte layer are mainly introduced, with particular emphasis on the introduction of gel electrolyte. Finally, the challenges and difficulties faced by the development of SECDs are briefly analysed.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140831839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimisation of cationic dye dyeing process of Porel fabrics using response surface methodology 利用响应面方法优化 Porel 织物的阳离子染料染色工艺

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-04-26 DOI: 10.1111/cote.12765

Yuan Chang, Keru Hou, Yating Ji, Zhongfang Yun, Guolei Cheng, Zaisheng Cai

{"title":"Optimisation of cationic dye dyeing process of Porel fabrics using response surface methodology","authors":"Yuan Chang, Keru Hou, Yating Ji, Zhongfang Yun, Guolei Cheng, Zaisheng Cai","doi":"10.1111/cote.12765","DOIUrl":"https://doi.org/10.1111/cote.12765","url":null,"abstract":"Polyethylene terephthalate (PET) fibre, widely utilised across diverse industries, suffers from inherent drawbacks such as inadequate moisture absorption, limited hydrophilicity, and susceptibility to static electricity. To address these limitations, Porel fibre has emerged as a novel modified polyester fibre that incorporates flexible aliphatic polyester into its macromolecular chain. This innovative design not only overcomes the deficiencies of PET fibre but also enables it to be dyed using cationic dyes or disperse dyes under atmospheric pressure conditions. However, the investigation of the dyeing process of cationic dyes on Porel textiles remains relatively scarce. In this work, response surface methodology (RSM) was used to optimise the dyeing process of Porel fabrics with C.I. Basic Blue 162. The effects of dyeing temperature, dyeing time, and dye concentration on exhaustion percentage and colour strength (K/S value) were investigated using the Central Composite Design (CCD) method. The optimal dyeing process condition was as follows: a dyeing temperature of 96°C, a dyeing time of 51 min, a dye concentration of 3.6% owf, a dye solution pH value of 4–5, and a liquor ratio of 1:20. Under the optimal dyeing process conditions, the Porel fabrics achieved an exhaustion percentage of 96.2% and a K/S value of 36.0. The aforementioned efforts endow Porel fibre with high‐quality dyeing capabilities and broaden the application prospects of polyester textiles.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140800050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The plasticisation model of dye diffusion: Part 1 introduction 染料扩散的塑化模型：第 1 部分引言

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-04-17 DOI: 10.1111/cote.12758

Stephen M. Burkinshaw

引用次数: 0

Correction to Investigation into the development of novel lanthanide‐based luminescent colorants for application to textiles and paper materials 更正：关于开发新型镧系发光着色剂以应用于纺织品和纸张材料的调查

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-04-17 DOI: 10.1111/cote.12763

引用次数: 0