Coloration Technology最新文献_第2页

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":"236 1","pages":""},"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":"1 1","pages":""},"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 2 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":"10.1111/cote.12764","url":null,"abstract":"<p>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.</p>","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"140 6","pages":"809-826"},"PeriodicalIF":2.0,"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":"19 1","pages":""},"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

The roles of elevated temperature and carriers in the dyeing of polyester fibres using disperse dyes: Part 4 plasticisation model of dye diffusion 高温和载体在使用分散染料对涤纶纤维染色中的作用：第 4 部分染料扩散的塑化模型

IF 2 4区工程技术

Coloration Technology Pub Date : 2024-04-01 DOI: 10.1111/cote.12748

Stephen M. Burkinshaw

引用次数: 0

Enzymatic coloration of polyamide fabrics and its comparison with conventional dyeing 锦纶织物的酶法染色及其与传统染色的比较

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-03-27 DOI: 10.1111/cote.12762

Rıza Atav, Ece Karagören, Selma Soysal, İsmail Yakin

{"title":"Enzymatic coloration of polyamide fabrics and its comparison with conventional dyeing","authors":"Rıza Atav, Ece Karagören, Selma Soysal, İsmail Yakin","doi":"10.1111/cote.12762","DOIUrl":"https://doi.org/10.1111/cote.12762","url":null,"abstract":"Among the textile wet processes, the colouring process is the process step that causes the most environmental pollution. New approaches that support sustainable production instead of environmentally harmful processes are extensively researched in the literature. When considering substitution of chemical processes with environmentally friendly methods, one of the issues that comes to mind is enzymatic processes. It is noteworthy that in recent years, interesting and promising studies on the use of laccase enzymes in textile dyeing have been published in the literature. However, studies on enzymatic colouring are still very limited and sufficient success has not been achieved especially on polyamide. The aim of this study is to develop an environmentally friendly enzymatic dyeing method, which can be an alternative to dyeing polyamide knitted fabrics with 1:2 metal complex dyes according to the exhaustion method. For this purpose, various phenol and amine compounds, and their mixtures were used as precursor, and the colours that can be obtained by enzymatic colouring have been determined. In addition, optimisation of enzymatic colouring conditions (enzyme concentration, temperature and time) was carried out for the precursors that gave the best results in terms of colour and fastness. Furthermore, enzymatic dyeing was compared with conventional 1:2 metal complex dyeing in terms of technical and economic aspects. The reaction pathways in enzymatic coloration with laccase enzyme by using various precursors were also explained by Fourier-transform infrared (FTIR) analysis.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"24 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140323506","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

Application of three‐way mixed multivariate analysis of variance method to detect changes in chromatic coordinates (L*, a*, b*) in building granites 应用三向混合多元方差分析法检测建筑花岗岩中色度坐标（L*、a*、b*）的变化

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-03-21 DOI: 10.1111/cote.12761

J. García‐Talegón, A. C. Iñigo, J. Paredes, R. A. Sepúlveda Correa, E. Azofra

{"title":"Application of three‐way mixed multivariate analysis of variance method to detect changes in chromatic coordinates (L*, a*, b*) in building granites","authors":"J. García‐Talegón, A. C. Iñigo, J. Paredes, R. A. Sepúlveda Correa, E. Azofra","doi":"10.1111/cote.12761","DOIUrl":"https://doi.org/10.1111/cote.12761","url":null,"abstract":"In the present work we determined the chromatic coordinates (L*, a*, b*) for three building stones used in the heritage city of Ávila, Spain (World Granite Heritage City, 1988). The stones came from quarries and were subjected to 90 cycles of three types of accelerated ageing processes: (a) freezing/thawing together with cooling/heating (T1); (b) salt crystallisation (T2); and (c) freezing/thawing together with cooling/heating + salt crystallisation (T3). A three‐way mixed MANOVA (multivariate analysis of variance) was applied to the data obtained. Significant variations in the three chromatic coordinates (L*, a*, b*) were observed between the three types of accelerated artificial ageing processes compared to the data obtained from the quarry samples, with a tendency towards darkness (↓L*), redness (↑a*) and much less intensity towards yellowing (↑b*).","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"3 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140198913","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

Optimal design of colour formulation prediction for cotton fabrics based on NSGA-II and TOPSIS 基于 NSGA-II 和 TOPSIS 的棉织物色彩配方预测优化设计

IF 1.8 4区工程技术

Coloration Technology Pub Date : 2024-03-11 DOI: 10.1111/cote.12749

Zeyan Zhou, Zijian Lin, Yue Ma, JiaRong Niu, Jianyong Liu, Xiaoyin Wang

{"title":"Optimal design of colour formulation prediction for cotton fabrics based on NSGA-II and TOPSIS","authors":"Zeyan Zhou, Zijian Lin, Yue Ma, JiaRong Niu, Jianyong Liu, Xiaoyin Wang","doi":"10.1111/cote.12749","DOIUrl":"https://doi.org/10.1111/cote.12749","url":null,"abstract":"The prediction of colour formulation is an important step in reproducing the target colour. At present, there are relatively few researches on multi-objective colour formulation problem, and the colour matching accuracy needs to be improved. In this research, a multi-objective evolutionary meta-heuristic method based on the Fast and Elitist Multi-objective Genetic Algorithm (NSGA-II) was proposed to predict the target colour recipes. The method used dye concentration as a variable and included three objective functions: (1) minimising the CMC (Colour Measurement Committee) colour difference between the formulation colour and the target colour, (2) minimising the metamerism index, and (3) minimising the cost of the formulation. The algorithm could obtain the Pareto optimal solution set after iteration. On this basis, the best combination of formulations was selected from the optimal solution set by combining the Expert Scoring Method (ESM), Entropy Weight Method (EWM) and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). The prediction effect of the model was evaluated by taking cotton fabrics and reactive dyes actually used in plant as examples. The results showed that 87.5% of the formulations met the CMC colour difference value of no more than 1, the metamerism index of 90.0% of the formulations did not exceed 1, and the cost of 92.5% of the formulations was reduced relative to the maximum extent in the Pareto optimal solution set. Further studies should be focused on removing duplicate individuals to give better diversity in the Pareto optimal solution set.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"20 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140108036","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