Coloration Technology最新文献

The plasticisation model of dye diffusion: Part 6 染料扩散的塑化模型：第6部分

IF 2.6 4区工程技术

Coloration Technology Pub Date : 2026-08-26 Epub Date: 2025-08-04 DOI: 10.1111/cote.70011

Stephen M. Burkinshaw

引用次数: 0

A multi-head convolutional attention residual network for prepress image super-resolution reconstruction in digital printing 一种用于数字印刷印前图像超分辨率重建的多头卷积注意残差网络

IF 2.6 4区工程技术

Coloration Technology Pub Date : 2026-08-26 Epub Date: 2025-08-10 DOI: 10.1111/cote.70024

Zebin Su, Yu Zhang, Pengfei Li, Xiaolong Jin, Huanhuan Zhang

{"title":"A multi-head convolutional attention residual network for prepress image super-resolution reconstruction in digital printing","authors":"Zebin Su, Yu Zhang, Pengfei Li, Xiaolong Jin, Huanhuan Zhang","doi":"10.1111/cote.70024","DOIUrl":"https://doi.org/10.1111/cote.70024","url":null,"abstract":"For images intended for digital printing production, besides vector graphics that are resolution-independent yet typically simplistic in colour and structure, there is a consistent and pressing need for bitmap images of natural scenes that possess abundant detail. However, most of the existing bitmap images do not meet the precision standards required for digital printing, leading to a compromise in the visual quality of the products. Deep learning-based super-resolution reconstruction techniques can aid in restoring more refined textural features of images, thereby enhancing the quality of digital printing outcomes. In this paper, a multi-head convolutional attention (MHCA)-based residual network is proposed for prepress image super-resolution reconstruction in digital printing. First, we remove the batch normalisation layers from the deep feature extraction module, which enhances the network's flexibility and reduces graphics processing unit memory usage. Then a new residual block named MHCARes is designed by introducing the MHCA mechanism, to focus on high-frequency information from different channels and spatial dimensions. Furthermore, a flexible and efficient reconstruction module that can make the network suitable for non-exponentially and slowly increasing scale factors is introduced. And the network is finally trained by the Charbonnier loss function. Experimental comparisons are conducted between the proposed method and other state-of-the-art methods. The results show that the proposed method exhibits superior performance in terms of peak signal-to-noise ratio and structural similarity index, and the reconstructed digital printing images possess more realistic fine textures, meeting the needs of digital printing production.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"142 5","pages":"695-714"},"PeriodicalIF":2.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816513","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

Flexo-printable glucomannan-based biofilm 柔印葡甘露聚糖基生物膜

IF 2.6 4区工程技术

Coloration Technology Pub Date : 2026-08-26 Epub Date: 2025-08-24 DOI: 10.1111/cote.70027

Kholoud Al-Ajlouni, Sinan Sonmez, Alexandra Pekarovicova

{"title":"Flexo-printable glucomannan-based biofilm","authors":"Kholoud Al-Ajlouni, Sinan Sonmez, Alexandra Pekarovicova","doi":"10.1111/cote.70027","DOIUrl":"https://doi.org/10.1111/cote.70027","url":null,"abstract":"Biofilms were synthesised from glucomannan and xylan. The ratio of glucomannan: xylan varied from 90:10 (g/g) to 70:30 (g/g). Nanofibrillated cellulose was added to enhance the mechanical properties of the biofilms. In another approach, glucomannan/xylan suspensions were crosslinked with tartaric acid (TA) or citric acid (CA). To evaluate printing on the crosslinked biofilms, a FlexiProof 100 laboratory proofer was used to print on the surface using water-based flexographic inks. The findings confirmed that crosslinked biofilms exhibited higher mechanical and barrier properties than non-crosslinked films. TA-crosslinked films provided the best moisture barrier properties, while CA-crosslinked films exhibited the highest tensile strength and elongation. Printability analysis revealed that all biofilms had acceptable print contrast and optical density values; the non-crosslinked biofilms showed the maximum print contrast value. The findings of this research recommend that crosslinked glucomannan-xylan biofilms are promising candidates for sustainable food-packaging applications with good printability, mechanical strength and moisture resistance.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"142 5","pages":"737-744"},"PeriodicalIF":2.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.70027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of washing and fading treatments on denim fabric biodegradation and soil behaviour 水洗和褪色处理对牛仔布生物降解和土壤行为的影响

IF 2.6 4区工程技术

Coloration Technology Pub Date : 2026-08-26 Epub Date: 2025-09-22 DOI: 10.1111/cote.70028

Vildan Sülar

{"title":"Impact of washing and fading treatments on denim fabric biodegradation and soil behaviour","authors":"Vildan Sülar","doi":"10.1111/cote.70028","DOIUrl":"https://doi.org/10.1111/cote.70028","url":null,"abstract":"This study examines the effect of various washing and fading treatments on the biodegradation of denim fabrics, focusing on both fabric degradation and soil behaviour. For this aim, systematic washing and fading treatments were applied to a raw denim fabric (100% cotton) to assess their impact on biodegradation comprehensively. The fabrics were tested using the soil burial method across three different periods (1, 2 and 3 months) for biodegradation. Before burial, the breaking properties of the fabrics were measured. The biodegradation was evaluated through visual inspection, microscopic examination, weight loss (%) and Fourier Transform–infrared (FTIR) analysis. In addition, total organic carbon (TOC) in soil samples was determined to examine the degradation. Additionally, ecotoxicity and plant growth tests were conducted to assess any potentially harmful effects in the soil following the final burial period. The research revealed that washing and fading treatments had a significant impact on the breaking strength and biodegradability of denim fabrics. Among these, stone washing with bleaching caused the highest level of damage, and after 3 months of degradation, these denim fabrics were almost destroyed. Visual inspections and microscopic examinations illustrated the deterioration of fabrics during burial. After 3 months of degradation in soil, all denim fabrics lost more than 60% of their weight. Except for rinse-washed and enzyme washed denim, weight loss (%) was greater than 90% after 3 months of degradation. Plant growth and ecotoxicity tests indicated that there were no harmful or toxic elements in the soil samples where the fabrics were buried during the degradation period.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"142 5","pages":"788-802"},"PeriodicalIF":2.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816583","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 novel carrier dyeing strategy to improve the strength and comfort performance of the polyimide fabrics 一种提高聚酰亚胺织物强度和舒适性的新型载体染色策略

IF 2.6 4区工程技术

Coloration Technology Pub Date : 2026-08-26 Epub Date: 2025-08-16 DOI: 10.1111/cote.70006

Shuting Chen, Xiru Shao, Muhang Cai, Chenchen Zhan, Yutian Wang, Xitong Yuan, Shan Jiang, Genyang Cao

{"title":"A novel carrier dyeing strategy to improve the strength and comfort performance of the polyimide fabrics","authors":"Shuting Chen, Xiru Shao, Muhang Cai, Chenchen Zhan, Yutian Wang, Xitong Yuan, Shan Jiang, Genyang Cao","doi":"10.1111/cote.70006","DOIUrl":"https://doi.org/10.1111/cote.70006","url":null,"abstract":"The loss of strength and poor handle are two prominent problems that impede the practical application of dyed polyimide fabrics in protective clothing. To address this issue, an environmentally friendly glycerol–water solvent system was employed to replace the pure water solution in conventional carrier dyeing, taking advantage of the specific viscous and solubility properties of glycerol. Through various characterisations, it was demonstrated that the addition of glycerol leads to two effects: decreased diffusion of the dyeing solution and a higher dye concentration to size ratio in the water and phenoxyethanol phases. Resulting from the combination of these effects, the K/S in the glycerol–water mixture is initially enhanced compared with that for the conventionally dyed sample, followed by a decrease as the amount of glycerol is increased. When the volume ratio of glycerol to water is 4:2, the K/S remains the same as that calculated for the conventionally dyed sample. By contrast, a surprising improvement was observed in tensile strength, as well as the breathability and softness of the dyed fabrics in the glycerol–water system. Specifically, in comparison with the conventionally dyed sample, there was an increase of 31.4% in tensile strength, 63.6% in breathability and 125% in softness under the volume ratio of 4:2, which can mainly be ascribed to the decreased penetration of carrier and water, leading to less swelling and hydrolysis.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"142 5","pages":"715-724"},"PeriodicalIF":2.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816467","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

Cross-modal matching between colour and music guided by objective physical attributes 色彩与音乐在客观物理属性引导下的跨模态匹配

IF 2.6 4区工程技术

Coloration Technology Pub Date : 2026-08-26 Epub Date: 2025-09-22 DOI: 10.1111/cote.70035

Jiapeng Pu, Shuang Wang, Jingqian Liu, Hui Ren

引用次数: 0

Natural biocolourant selectivity from mulberry leaves to natural coloured cocoon silkworm excrement 桑叶对天然彩色蚕蛹粪便的天然生物着色剂选择性

IF 2.6 4区工程技术

Coloration Technology Pub Date : 2026-08-26 Epub Date: 2025-08-19 DOI: 10.1111/cote.70025

Runxiao Liu, Sheng Zhang, Yijun Tang, Qing Li

{"title":"Natural biocolourant selectivity from mulberry leaves to natural coloured cocoon silkworm excrement","authors":"Runxiao Liu, Sheng Zhang, Yijun Tang, Qing Li","doi":"10.1111/cote.70025","DOIUrl":"10.1111/cote.70025","url":null,"abstract":"With the development of biological and genetic technology, coloured silk cocoons have become more and more popular. Silkworm excrement (SE) is an important by-product from the sericulture industry. When the application and recycling of SE involves SE from coloured-cocoon silkworms, it is necessary to know about the discrepancy from conventional SE produced by white-cocoon silkworms. In this study, white-cocoon and yellow-cocoon domestic silkworms were fed mulberry leaves from the same source and their SE was investigated for natural colourants of chlorophyll and carotenoids. The results showed that, for both types of SE, although a proportion of chlorophyll from mulberry leaves was transformed into magnesium-free chlorophyll derivatives in SE via the silkworm's digestive system, and that the de-magnesium reaction occurred primarily in chlorophyll a, the chemical components of chlorophyll and its derivatives were mainly the same in both types of SE. The chlorophyll concentration was slightly higher in SE from the white-cocoon silkworm than that from the yellow-cocoon silkworm. Quantitative analysis through high-performance liquid chromatography unveiled lutein content of 99.1 ± 9.2 μg/g and β-carotene content of 180.7 ± 14.3 (μg/g) for SE from the yellow-cocoon silkworm, representing a rate of decrease of ca. 7.6% for lutein and of ca. 6.3% for β-carotene compared with that of SE from the white-cocoon silkworm. The anti-oxidant capacity of SE from the white-cocoon silkworm was found to be superior to that from the yellow-cocoon silkworm, as investigated through free radical cation scavenging assay. The outcomes of the current study are expected to act as a reference guide towards the application and recycling of SE for better and more effective utilisation of this by-product as a renewable natural bioresource.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"142 5","pages":"725-736"},"PeriodicalIF":2.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147878643","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

Eco-friendly vegetable leather dyeing using green and sustainable natural dye from Lannea schweinfurthii 生态友好的植物皮革染色，采用绿色和可持续的天然染料，来自Lannea schweinfurthii

IF 2.6 4区工程技术

Coloration Technology Pub Date : 2026-08-26 Epub Date: 2025-09-15 DOI: 10.1111/cote.70033

Vaileth Hance Kalangali, Swarna Vinodh Kanth, Karoli Nicholas Njau, Cecilia Rolence China

{"title":"Eco-friendly vegetable leather dyeing using green and sustainable natural dye from Lannea schweinfurthii","authors":"Vaileth Hance Kalangali, Swarna Vinodh Kanth, Karoli Nicholas Njau, Cecilia Rolence China","doi":"10.1111/cote.70033","DOIUrl":"https://doi.org/10.1111/cote.70033","url":null,"abstract":"Because of the hazardous effluent load of synthetic dyes, the global community is seeking the inclusion of natural dyes in various fields. Lannea schweinfurthii, widely cultivated in northern Tanzania, offers a promising natural dye source because its stem bark is rich in coloured phytochemicals. This study focused on extracting an organic dye from the stem bark of Lannea schweinfurthii using solvent extraction assisted by a magnetic stirrer and applying it to dye vegetable-tanned leather. The influence of extraction temperature (40, 60, 80°C), time (10, 35, 60 minutes) and stem bark powder concentration (0.02, 0.06, 0.1 g/mL) were optimised using response surface methodology with a Box–Behnken Design. Under optimised conditions of 0.1 g/mL concentration, 43 minutes and 77°C, a maximum absorbance of 4.9 was achieved. At these conditions, the desirability function of 1.000, which indicates the optimal performance, was attained. Fourier Transform–infrared analysis confirmed the presence of flavonoids, phenols, tannins and their derivatives. Also, a zeta potential of −1.36 was recorded. The dyeing process was conducted with and without mordant. The premordanting technique was followed using 2% (on weight of leather) of potassium aluminium sulphate, copper sulphate and ferrous sulphate as mordants. The dyed samples exhibited various colour shades with good colour fastness, enhanced colour intensity and notable antimicrobial properties. Therefore, dyeing using the stem bark of Lannea schweinfurthii represents a major step toward the eco-friendly fabrication of leather products.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"142 5","pages":"772-787"},"PeriodicalIF":2.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816466","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 approaches to fashionable denim fading: New perspectives on conventional and modern garment washing techniques 时尚牛仔织物褪色的可持续方法：传统和现代服装洗涤技术的新视角

IF 2.6 4区工程技术

Coloration Technology Pub Date : 2026-08-26 Epub Date: 2025-11-23 DOI: 10.1111/cote.70043

Md. Tareque Rahaman, Md. Shakib Hossain Khan, Arnob Dhar Pranta

{"title":"Sustainable approaches to fashionable denim fading: New perspectives on conventional and modern garment washing techniques","authors":"Md. Tareque Rahaman, Md. Shakib Hossain Khan, Arnob Dhar Pranta","doi":"10.1111/cote.70043","DOIUrl":"https://doi.org/10.1111/cote.70043","url":null,"abstract":"Sustainable denim washing is growing as an important priority in the fashion industry, as brands and manufacturers prioritise environmental sustainability. This review figures out that conventional denim washing approaches require a lot of water, energy and hazardous chemicals, which have a negative impact on the environment. It indicates that the industry has begun to shift towards more sustainable practices by implementing technologies such as laser fading, ozone treatments and enzyme-based processes. These approaches significantly reduce the environmental impact. Emerging innovations, such as artificial intelligence-driven water recycling systems, automated machinery and closed-loop production models, have the potential to increase efficiency and reduce waste. However, widespread implementation faces ongoing challenges, such as high costs, chemical management, scalability and the requirement for higher worker safety standards. Certification systems and supply chain transparency are increasingly being used to validate sustainability claims and meet rising consumer demand for sustainable production and consumption. This review also summarises current developments and identifies gaps in technology, policy and practice, pointing out the importance of cross-sector collaboration in moving the denim industry towards greater environmental sustainability. It aims to provide a comprehensive foundation for researchers, denim industries, apparel brands and stakeholders interested in long-term ethical practices in the denim washing industry.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"142 5","pages":"629-676"},"PeriodicalIF":2.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816476","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 importance of rheological characterisation of innovative paint formulations for autonomous vehicles 自动驾驶汽车创新涂料配方流变特性的重要性

IF 2.6 4区工程技术

Coloration Technology Pub Date : 2026-08-26 Epub Date: 2025-09-05 DOI: 10.1111/cote.70031

Onur Uzunkavak, Günseli Özdemir

{"title":"The importance of rheological characterisation of innovative paint formulations for autonomous vehicles","authors":"Onur Uzunkavak, Günseli Özdemir","doi":"10.1111/cote.70031","DOIUrl":"https://doi.org/10.1111/cote.70031","url":null,"abstract":"It is critical for paint formulators to create products that have the proper flow properties, as well as delivering the desired colour, to ensure trouble-free application and consistent film formation. Recent efforts for the coloration of robust paint systems suitable for autonomous vehicles with efficient Light Detection and Ranging (LiDAR) perception pose new challenges for formulators, as pigmentation (type and quantity of pigments in use) is radically changed to colour-match conventionally formulated finishes. Solvent-borne acrylic topcoat paints containing traditional dark pigment dispersions typically exhibit low reflectance at the wavelength of 905 nm, which is the operating wavelength for LiDAR technology, and this feature needs to be improved to avoid collisions in traffic. In this study, three solid dark colours from the Reichsausschuss für Lieferbedingungen (RAL) 841-GL colour chart—RAL 5015, RAL 5017 and RAL 9011—were reformulated in a solvent-borne acrylic topcoat system for passenger vehicles, aiming to enhance reflectivity at 905 nm through the incorporation of dispersions containing CoAl2O4 and (Cr, Fe)2O3 complex inorganic colour pigments and coarse titanium dioxide. The rheological properties of colour-matched pairs of innovative and conventional paint formulations were compared. The thixotropic behaviour of the formulations was determined through 3-interval-time tests and the viscoelastic characteristics were revealed by amplitude sweep tests. The correlation between shear stress and shear rate was clarified using mathematical models. The shear-thinning behaviour of both conventional and innovative formulations for RAL 5015 and RAL 5017 was best described by the Herschel–Bulkley model, whereas the behaviour of RAL 9011 was best described by the Casson model.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"142 5","pages":"760-771"},"PeriodicalIF":2.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816543","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