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Journal articles on the topic 'Synthetic dyes'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Serafini, Ilaria, Kathryn Raeburn McClure, Alessandro Ciccola, et al. "Inside the History of Italian Coloring Industries: An Investigation of ACNA Dyes through a Novel Analytical Protocol for Synthetic Dye Extraction and Characterization." Molecules 28, no. 14 (2023): 5331. http://dx.doi.org/10.3390/molecules28145331.

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The introduction of synthetic dyes completely changed the industrial production and use of colorants for art materials. From the synthesis of the first synthetic dye, mauveine, in 1856 until today, artists have enjoyed a wider range of colors and selection of chemical properties than was ever available before. However, the introduction of synthetic dyes introduced a wider variety and increased the complexity of the chemical structures of marketed dyes. This work looks towards the analysis of synthetically dyed objects in heritage collections, applying an extraction protocol based on the use of

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Jangwan, J. S., Maneesha Dobhal, and S. C. Sati. "Dyeing of wool and cotton fibres with fruit rind of Juglans regia as natural dyes, and standardization of ancient dyeing procedure." Environment Conservation Journal 8, no. 3 (2007): 35–38. http://dx.doi.org/10.36953/ecj.2007.080310.

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Vegetable dyes and their uses are known in an cient time more than 2000 years ago. It was found that the discovery of synthetic dyes reduce the use of natural dyes and consequently the export of same was affected in large extent. However due to non toxic nature, eco-friendly behaviour and properties to impart variety of colours once again natural dyes are getting more attention of chemists and dyers. The present paper deals with optimization of dyeing and mordanting of wool and cotton samples with fruit rind of Juglans regia and standardization of ancient dyeing procedure and also the fastness

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Ali, Afnan Nasser. "A comprehensive study of natural and synthetic dyes: their properties, methods of preparation, and uses." SHIFAA 2024 (January 3, 2024): 1–17. http://dx.doi.org/10.70470/shifaa/2024/001.

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The use of natural dyes in the dying process was one of the oldest procedures used by the ancients. Obtaining dyes from natural sources means extracting them from plants and animals. Colors are derived from natural sources. Dyes can be divided into two categories: natural dyes and synthetic dyes. Synthetic dyes include saffron dyes and azo dyes, the latter being one of several types of organic compounds that are produced in large quantities through industrial processes. Dyeing is a process that involves the use of dyes in the dyeing process of textiles and food products. Fabrics are colored wi

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Uddin, Md Koushic, Mustafizur Rahman, Shuva Bhattacharjee, Susmita Singh, and Shanjid Khan Mojlish. "Dyeing of Cotton Knit Fabric with Natural Dyes Extracted from Java Plum." AATCC Journal of Research 8, no. 6 (2021): 41–46. http://dx.doi.org/10.14504/ajr.8.6.5.

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Natural dyes extracted from natural sources are likely to be less harmful and more eco-friendly than synthetic dyes. In this study, cotton fabric was dyed with natural dyes extracted from Java plum fruit ( Syzygium cumini). Dyeing was accomplished with or without mordanting agents using simultaneous and post-mordanting methods. The color of the treated substrates was investigated in terms K/S and CIELAB values. In addition, the attenuation co-efficient and solubility in organic solvents of the extracted dyes were determined. The wash and rubbing fastness of the dyed fabrics were good to excell

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Kuznetsov, Dmitry N., Konstantin I. Kobrakov, Anna G. Ruchkina, and Galina S. Stankevich. "BIOLOGICALLY ACTIVE SYNTHETIC ORGANIC DYES." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 60, no. 1 (2017): 4. http://dx.doi.org/10.6060/tcct.2017601.5423.

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For citation:Kuznetsov D.N., Kobrakov K.I., Ruchkina A.G., Stankevich G.S. Biologically active synthetic organic dyes. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 1. P. 4-33.This review is based on the publications found in CAS (Chemical Abstracts Service) database available from STN (The Scientific and Technical Information Network) with respect to dyes, and the compounds that can be classified as the dyes molecular variants. The substances were categorised based on the dyes chromophore properties. Special care was taken to determine the “composition - property” profile wit

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Rusdi, Suharno, M. Yusuf Zakaria, Rifki N. F. Aditya, and Achmad Chafidz. "Investigating the Potential Use of Cassava Leaf Extract as a Natural Coloring Substance for Fabrics." Materials Science Forum 991 (May 2020): 123–28. http://dx.doi.org/10.4028/www.scientific.net/msf.991.123.

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In this modern era, most of the textile industries used synthetic dyes for coloring their fabrics. The reason why most of textile companies use synthetic dyes is that synthetic dyes are easier to obtain, the availability of colors is guaranteed, vast variety of colors, good color fastness. Nevertheless, the use of synthetic dyes in the textile industries has caused environmental problems if the waste not treated properly. Additionally, synthetic dyes commonly contain chemicals which are not good for human health. They can cause cancer, attack the nerves of the brain, etc. Therefore, most of pe

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Batubara, Ridwanti, Shafira Chairunnisa Chery, Arif Nuryawan, et al. "Natural dyes of Purun crafts materials and their effect on fibre dimension and derivative dimensions." IOP Conference Series: Earth and Environmental Science 1445, no. 1 (2025): 012023. https://doi.org/10.1088/1755-1315/1445/1/012023.

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Abstract Purun is is commonly used in crafts like mats, hats, and tissue boxes, but synthetic dyes used in these products have negative environmental impacts. This research aims to study the use of natural dyes in purun fibre Natural dyes were extracted using distilled water and 96% ethanol from purple sweet potato, turmeric, and mango leaves. Purun was treated with 2% natural dyes and dyes mixed with 5% vinegar acid, then dried to observe color changes and assess the effect on fiber dimensions. Extraction yields ranged from 10% to 16%, with no significant differences between dyes with or with

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Maghfiroh, Maghfiroh, Mutadin Mutadin, and Sri Puji Astuti. "ANALISIS KUALITAS DAN KETAHANAN LUNTUR WARNA BATIK HASIL PROSES REUSE SISA LARUTAN CELUP ZAT WARNA SINTETIS GOLONGAN BEJANA MENUJU GREEN INDUSTRY." Pena Jurnal Ilmu Pengetahuan dan Teknologi 34, no. 1 (2020): 24. http://dx.doi.org/10.31941/jurnalpena.v34i1.996.

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<p>It has been found the fact that natural dyes are not environmentally friendly dyes if they are directly discharged into the water without undergoing processing. Theoretically, both synthetic dyes and natural dyes have the same opportunity to cause pollution of aquatic ecosystems because they have the same functional groups. So far, natural dyes are considered environmentally friendly not because of the low waste pollutant parameters, but because there is a process of reuse of the remaining dyed water. The process of reusing the remaining dye solution can reduce the volume of liquid wa

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Nerlekar, Nisha A. "Production of Natural Dye from Beet Roots (BETA VULGARIS L.) by using different Mordants." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 466–73. http://dx.doi.org/10.22214/ijraset.2021.34842.

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Dyes can be derived from nature by different part of plants. Natural dyes give the color like cool, warm colors that are with unique combinations. Dyes are made from natural resources like plants, animals, and minerals tend to produce colors that wash out easily. With most natural dyes, a mordant can be used to make color more permanent. In the mordanting process the fiber of wool, cotton is treated with a solution of a metal salt (usually an aluminum, chromium, copper, iron, or tin salt). Then the fiber is dyed with natural colors. Metals ions which are present in the salt form strong bonds w

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Cao, Zhen Yu, Feng Zhao, and Xi Yan Li. "Applications of Dyes in Material Science Research." Materials Science Forum 575-578 (April 2008): 1451–54. http://dx.doi.org/10.4028/www.scientific.net/msf.575-578.1451.

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Dyes are colored organic compounds that are used to pigment fiber or other materials. Dyes are mainly calssified into natural and synthetic dyes in terms of the origin. Natural dyes include animal dyes, plant dyes and mineral dyes with such defects as incomplete chromatogram, inconvenient use and color fading, and thus have been gradually eliminated. In 1856, the 18-year-old young British scientist Perkin successfully invented the world's first synthetic dyes. He built his own factory and industrialized synthetic dye production. Over 100 years since then, dye industry has undergone rapid devel

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AJAYI, Noah Oluwasanjo, та Elizabeth Ọlanikẹ ADÉKỌ̀YÀ. "EXAMINING THE UTILISATION OF LOCAL AND SYNTHETIC INDIGO DYES AND QUALITTY OF DYED FABRICS IN ÌTÒKÚ MARKET, ABẸ́ÒKÚTA , ÒGÙN STATE, NIGERIA". ShodhKosh: Journal of Visual and Performing Arts 2, № 1 (2021): 1–12. http://dx.doi.org/10.29121/shodhkosh.v2.i1.2021.22.

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Africans had been producing fabrics locally before the advent of Western fabrics. Àdìrẹ fabrics are purely African textile concepts; dyed with local/indigenous materials and readymade synthetic materials in Abẹ́òkúta, Òṣogbo, Ìbàdàn, Kánò, Ṣókótó, and other parts of Nigeria, and Africa at large. The study focuses on how leaves, bark of plants, and trees are utilised in producing colours of dyes. For example, shade of red can be obtained from leaves of guinea corn (sorghum village), leave of teak wood (tectona grands), leaves of henna law (Sonia intermis), bark and roots of African rose wood (p

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Chowdhury, Mohammed Rubaiyat, Ayub Nabi Khan, and Saima Sultana. "Study on the Effect of Natural dyes and Synthetic dyes on Textile Fabric." Journal of Materials Science Research 13, no. 2 (2024): 25. http://dx.doi.org/10.5539/jmsr.v13n2p25.

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Natural dyes are very useful for dyeing textile fibre. Natural dyes have been used for long back. In the Mughal regime, it was found that natural dyes were used to dye textile materials. Starting from the Muslin to the household textiles the use of natural dyes was significant. For more than a hundred years, it was evident that synthetic dyes become popular for dyeing textile material. Natural dyes for jamdani sarees are not easily available in Bangladesh. These dyes are imported from outside of Bangladesh and for this reason, this type of dyes is not available in the local market. But at the

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Koçak, E. Dilara, Tuğba Ofluoğlu, and Özlem Tektaş Çelikkanat. "The effect of knit structure on natural dyeing properties of cotton fabric." Journal of Textile Engineering & Fashion Technology 10, no. 3 (2024): 107–9. http://dx.doi.org/10.15406/jteft.2024.10.00374.

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Natural dyeing of textile materials is gaining popularity all over the world since natural dyes are mostly eco-friendly, less toxic, and less allergenic as compared with synthetic dyes. Although synthetic dyes offer a broad range of color and color fastness and bright hues, they are nonbiodegradable and carcinogenic compounds and cause water pollution as well as waste disposal problems. This study presents the natural dyeing of cotton knitted fabric with three different structures using R. cordifolia root extract as a natural dye. Knitted fabrics with three different structures, interlock (350

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H., A. Shindy. "Synthesis of different classes of five/six membered heterocyclic cyanine dyes: A review." Chemistry International 6, no. 2 (2020): 56–74. https://doi.org/10.5281/zenodo.3361022.

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In this review paper synthesis of different classes of five/six membered heterocyclic cyanine dyes have been reviewed. In this paper review detailed synthesis steps were represented via equations. The synthesis covers, monomethine cyanine dyes (simple cyanine dyes), dimethine cyanine dyes, trimethine cyanine dyes (carbocyanine dyes), styryl cyanine dyes (hemicyanine dyes), aza-styryl cyanine dyes (aza-hemicyanine dyes and/or aza-cyanine dyes), merocyanine dyes (acyclic merocyanine dyes and cyclic merocyanine dyes) and apocyanine dyes. Besides, in the introduction section of this review paper s

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Yarmosh, T., and F. Pertsevoi. "RESEARCH OF THE DOMESTIC MARKET OF FOOD PRODUCTS WITH FOOD DYES." Scientific heritage, no. 140 (July 11, 2024): 29–37. https://doi.org/10.5281/zenodo.12720660.

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The article is review and informative. The paper presents the study of food products using food dyes. The purpose of the study is to determine the prevalence of food dyes in the food industry and to analyze the types of dyes used in food production. The results showed that domestic manufacturers are gradually starting to abandon synthetic dyes and use natural dyes, concentrates and extracts. Since the amount of natural dyes in food products is 68% of the total amount of experimental products; fruit and berry concentrates and extracts make up 19%, and synthetic dyes - 13%. Natural dyes were fou

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Nintasari, Rinne, and Desi Mustika Amaliyah. "EKTRAKSI ZAT WARNA ALAM DARI KAYU ULIN (Eusideroxylon zwageri), KAYU SECANG (Caesalpinia sp) DAN KAYU MENGKUDU (Morinda citrifolia) UNTUK BAHAN WARNA KAIN SASIRANGAN." Jurnal Riset Industri Hasil Hutan 8, no. 1 (2016): 25. http://dx.doi.org/10.24111/jrihh.v8i1.2065.

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Natural Dyes Extraction from Ulin Wood (Eusideroxylon zwageri), Secang Wood (Caesalpinia sp ) and Noni Wood (Morinda citrifolia ) for SasiranganNatural dyes have a beautiful and distinctive color that hard to imitate with synthetic colors. Natural dyes have been recommended as a dyes that safe for the environment and human health. It contains natural components that relatively low pollution load, easily biodegradable and non-toxic. The aim of this research is to identify the adsorption of natural dyes from ulin wood (Eusideroxylon zwageri), secang wood (Caesalpinia sappan) and mengkudu wood (M

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Kisdina, Rifdha Hendianti, Firmansyah Adi Nugroho, Shofirul Sholikhatun Nisa, et al. "Characterization of Natural and Synthetic Dyes for Large-Scale Dye-Sensitized Solar Cells." Defect and Diffusion Forum 438 (February 10, 2025): 69–78. https://doi.org/10.4028/p-bsq0oo.

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Photosensitizers have an important role in increasing the ability to capture light. One of the main components of dye-sensitized solar cells (DSSCs) is dye. In general, DSSC fabrication uses synthetic dyes such as N719 and DN-F01. However, synthetic dyes have the potential to have negative impacts on human health and the environment. In this research, DSSC fabrication was carried out using natural dyes and synthetic dyes at large sizes (one cell with an active area of 18 cm2 and two cells with an active area of 15 cm2). The natural dyes used are anthocyanin from red dragon fruit (dragon fruit

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Younas, Touseef, Noor Tayyaba, Afsheen Ayub, and Shaukat Ali. "Textile fabric's and dyes." Tekstilna industrija 69, no. 3 (2021): 47–59. http://dx.doi.org/10.5937/tekstind2103047y.

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Textiles sectors serve up the outfit needs of every day and this industry plays a major role in the economy of the country. All the textile fabrics are either natural or synthetic fibers or a blend of both. Different types of dyes are used for different kinds of fabrics depending on the nature and type of the fabric to be dyed, to impart color, modify the fabric to make them more attractive and astonishing. In short, the introduction of synthetic dyes resulted in the demise of a massive natural dye industry. So, it's necessary to classify the different types of dyes with the increase in the nu

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Tahsin Gulzar, Tahsin Gulzar, Shumaila Kiran Shumaila Kiran, Shazia Abrar Shazia Abrar, et al. "Role of Enzymatic System of Screened Pleurots ostreatus IBL-02 in the Bio-Removal of Synthetic Dyes Effluent." Journal of the chemical society of pakistan 41, no. 3 (2019): 509. http://dx.doi.org/10.52568/000755/jcsp/41.03.2019.

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White rot fungi have exclusive capacity to decolorize synthetic azo dyes. Five different fungal strains namely S. commune IBL-01 (SC), P. ostreatus IBL-02 (PO) P. chrysosporium IBL-03 (PC), T. versicolor IBL-04 (TV) and G. lucidum IBL-05 (GL) were used for the decolorization of synthetic dyes effluent. P. ostreatus IBL-02 showed maximum decolorization of synthetic textile effluent, so it was selected for the optimization of experimental factors. Different physico-chemical parameters were optimized using Pleutorus ostreatus IBL-02 (PO), for the maximum de-colorization of synthetic dyes effluent

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Meena Choudhary and Priyanka Singh. "Natural Dyes from Medicinal Plants: An Exploration of Their Potential in Textile Industry." International Journal of Scientific Research in Science and Technology 12, no. 2 (2025): 306–15. https://doi.org/10.32628/ijsrst25122230.

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Scientists now investigate medicinal plant-derived natural dyes because they provide sustainable environmentally-friendly options versus synthetic dyes. Environmental concerns regarding synthetic dyes in textile production may find effective answers through the adoption of natural dyes because these colorants originate from renewable resources and avoid the pollution issues related to synthetic dyes. Natural dyes derive from diverse plant-based and animal-based and mineral-based sources since they bypass synthetic manipulation. The biodegradable and low-allergenic and non-toxic nature of natur

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Al’Afifah, J. A., I. Sumardi, A. Darwis, L. Melani, and Y. Suhaya. "Evaluation of staining betung bamboo (Dendrocalamus asper) using natural and synthetic dyes with and without the addition of preservatives." IOP Conference Series: Earth and Environmental Science 1309, no. 1 (2024): 012002. http://dx.doi.org/10.1088/1755-1315/1309/1/012002.

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Abstract Bamboo is a widely utilized product. The use of dyes in coloring is now becoming important in bamboo dyeing as color can provide consumer appeal and improve aesthetics. Unlike wood, bamboo has a relatively uniform color, which is beige on the inside and green on the outside. Another important step in bamboo processing is preservation. This research examines bamboo colored using synthetic dyes using textile dyes which are azo group, natural dyes derived from the extraction of sappan wood, and examines the addition of borax boric preservatives. There are four treatments: natural dyes wi

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Ariyana Damayanti and Yasinta Dwi Yulinda Sari. "Penggunaan Pewarna Sintetis Dan Alam Pada Lukis Kain." Garina 12, no. 2 (2020): 41–50. http://dx.doi.org/10.69697/garina.v12i2.51.

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Coloring materials for fabric painting can be produced from natural dyes and synthetic dyes. Natural and synthetic dyes have their respective advantages and disadvantages. The combination of the two colors will give the impression of a brighter color, and slightly reduce environmental pollution. The objectives of this research are: 1) Knowing the processing of synthetic and natural dyes for fabric painting; 2) Knowing the results of applying synthetic and natural dyes to fabric painting. The method used in this research is the research and development approach model Research and Development (R

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Niharika, Jain and Madhuri Nigam. "Exploring Sustainable Approaches to Coloration: A Review." Journal Of The Textile Association (JTA) 85, no. 3 (2024): 1–8. https://doi.org/10.5281/zenodo.14273608.

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For centuries, humans have relied on a variety of nature's palette in their search for color. It wasn't until the middle of the 18th century that synthetic dyes were commercially used which transformed the world of coloration. The commercial utilization of synthetic dyes is steadily increasing across various sectors, including textiles, leather, paper, printing ink, food, medical and health care, plastic, rubber, cosmetics, paint and coatings, and many others. The annual global production of synthetic dyes exceeds 1,000,000 tons, with the textile sector alone consuming 80% of this quantity. To

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Bhattacharya, Dr Sumanta. "Analysis of Enervation Conduct of Indian Maddar Natural Dye on Silk Fabric." International Journal for Research in Applied Science and Engineering Technology 9, no. 11 (2021): 1073–81. http://dx.doi.org/10.22214/ijraset.2021.38967.

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Abstract: Dying is a popular practice in textile industry which is prevalent at all parts of the world from the period of ancient civilization. Initially, natural dyes i.e. dye derived from natural resources like vegetables, flowers, minerals, plants etc. were used. Now-a-days, due to technological and scientific innovations synthetic dyes are processed at large scale in the laboratories as it is still one of the most profitable industry globally. However, the rapid utilization of chemicals in textile industry for production of synthetic dyes causes degradation of environment like soil polluti

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Ferreira, Leonardo Gomes Braga, Robson Xavier Faria, Natiele Carla da Silva Ferreira, and Rômulo José Soares-Bezerra. "Brilliant Blue Dyes in Daily Food: How Could Purinergic System Be Affected?" International Journal of Food Science 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/7548498.

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Dyes were first obtained from the extraction of plant sources in the Neolithic period to produce dyed clothes. At the beginning of the 19th century, synthetic dyes were produced to color clothes on a large scale. Other applications for synthetic dyes include the pharmaceutical and food industries, which are important interference factors in our lives and health. Herein, we analyzed the possible implications of some dyes that are already described as antagonists of purinergic receptors, including special Brilliant Blue G and its derivative FD&C Blue No. 1. Purinergic receptor family is wide

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., Suciatmih. "Effect of Different Mordants on Cotton Cloth Dyed with Aspergillus and Penicillium Dyes." Aceh International Journal of Science and Technology 6, no. 1 (2017): 19. http://dx.doi.org/10.13170/aijst.6.1.5372.

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Natural dyes are an important alternative to potentially harmful synthetic dyes. This research was conducted using three kinds of Aspergillus dyes and six kinds of Penicillium dyes. In this study, Aspergillus and Penicillium were grown in mineral salts glucose medium. Premordanting technique was followed using different mordants, namely alum, CaCO3, CuSO4 5H2O, FeSO4 7H2O, K2Cr2O7 and MnSO4 H2O on cotton cloth. The colour of filtrate and range of colours developed on dyed materials were measured by RHS colour chart. The results indicated that the colour of dyed cloth was influenced by the addi

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HARANINA, O., YA RED’KO, M. PROSKURKA, and R. VATAN. "SYNTHETIC DYES IN MEDICINE." HERALD OF KHMELNYTSKYI NATIONAL UNIVERSITY 297, no. 3 (2021): 168–72. http://dx.doi.org/10.31891/2307-5732-2021-297-3-168-172.

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Synthetic dyes and intermediates for their synthesis are widely used in dyeing textile materials. The presence of the necessary functional groups in the structure of the dyes provides their biocidal properties. When using dyes with biocidal properties, the surface of textile materials is seized from destruction. Separate representative dyes protect the human body from the action of pathogenic microflora. It is necessary to create conditions for a timely attack by the textile material on bacteria and fungi. A sufficient number of natural and synthetic compounds exhibit antimicrobial activity. M

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Hasanov, A. A. "ADSORPTION TREATMENT OF TEXTILE WASTEWATER CONTAMINATED WITH SYNTHETIC DYES." Azerbaijan Chemical Journal, no. 3 (September 22, 2022): 70–74. http://dx.doi.org/10.32737/0005-2531-2022-3-70-74.

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The aim of this study is to select an efficient, inexpensive adsorbent for the removal of synthetic dyes from the wastewater of the textile industry. We used waste products obtained during the regeneration of ion-exchange resins formed from highly saline aqueous solutions of calcium and magnesium that do not require pre-treatment, as well as magnesite minerals that contain traces of impurities, such as Fe, Zn, Co, Cd, Mn. The spectrophotometric characteristics of synthetic organic dyes in wastewater have been studied. The study has shown that in the process of adsorption, synthetic organic dye

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Moses, J. Jeyakodi, and V. K. Venkataraman. "Study of K/S, Anti-bacterial, UV-protection, Anti-odor and SEM on Chemical Treated Cotton Fabrics." Journal of Engineered Fibers and Fabrics 12, no. 2 (2017): 155892501701200. http://dx.doi.org/10.1177/155892501701200205.

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In this research work cotton fabrics were treated with sodium hydroxide, morpholine and cellulase enzyme. The treated fabrics were then dyed with some selected natural dyes such as annatto, onion, pomegranate, indigo, myrobalan, bar berry; and synthetic dyes such as reactive and sulphur dyes. These treated samples were tested for their dyeing characteristics (K/S value, fastness properties, washing, light, rubbing and stain resistance), antibacterial, uv-protection, anti-odor behaviors and SEM study. Among the treated fabrics, sodium hydroxide treated cotton fabric exhibited the best propertie

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Legerská, Barbora, Daniela Chmelová, and Miroslav Ondrejovič. "Degradation of Synthetic Dyes by Laccases – A Mini-Review." Nova Biotechnologica et Chimica 15, no. 1 (2016): 90–106. http://dx.doi.org/10.1515/nbec-2016-0010.

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Abstract Laccases provide a promising future as a tool to be used in the field of biodegradation of synthetic dyes with different chemical structures. These enzymes are able to oxidize a wide range of phenolic substrates without the presence of additional co-factors. Laccases have been confirmed for their potential of synthetic dye degradation from wastewater and degradation products of these enzymatic reactions become less toxic than selected dyes. This study discusses the potential of laccase enzymes as agents for laccase-catalyzed degradation in terms of biodegradation efficiency of synthet

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Wan Ahmad, Wan Yunus, M. A. Mohd Nor, N. Saim, M. I. Ab Kadir, and M. R. Ahmad. "Nano Natural Dyes from Melastoma Malabathricum L." Advanced Materials Research 545 (July 2012): 59–63. http://dx.doi.org/10.4028/www.scientific.net/amr.545.59.

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In this study, natural colours were produced from Melastoma Malabathricum L.’s (Senduduk) plant. The dyes were extracted from the petal part of the plant using solvent extraction method of acidified methanol and methanol. The natural colours were then converted into powder form of nano size scale using a ball mill grinder. Silk fabrics were used as the substrate and dyed using several natural and synthetic mordant. The use of different solvents for extraction and mordant for dyeing resulted in different colour shades on the silk fabrics. The color fastness to washing tests revealed colour fast

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Widarti, Sri, Yanti Suprianti, Annisa Syafitri Kurniasetiawati та Rachmad Imbang Tritjahjono. "The Efficiency of κ-Carrageenan-Chitosan-PVA-MWCNTs Membranes in Removing Methylene Blue, Rhodamine B, Bromocresol Purple, and Murexid from Water". ASEAN Journal of Chemical Engineering 23, № 3 (2023): 282. http://dx.doi.org/10.22146/ajche.78794.

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The electrocoagulation method has been proven to be highly effective in removing metal ions from water, with a removal efficiency of over 97%. However, in terms of removing organic pollutants such as synthetic dyes, the efficiency of electrocoagulation is still relatively low. A hybrid approach combining electrocoagulation with membrane filtration has been proposed to enhance the removal of organic contaminants. Eco-friendly membranes made from renewable natural polymers like carrageenan and chitosan, reinforced with synthetic polymers such as polyvinyl alcohol and carbon nanotubes, have shown

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VERMA, MONA, SAROJ S. JEET SINGH, and NEELAM M. ROSE. "OPTIMIZATION OF REACTIVE DYEING PROCESS FOR CHITOSAN TREATED COTTON FABRIC." Cellulose Chemistry and Technology 56, no. 1-2 (2022): 165–75. http://dx.doi.org/10.35812/cellulosechemtechnol.2022.56.16.

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The colour of textiles plays an important role in the marketability of fabrics, due to its psychological and eye-catching effects on consumers. Synthetic dyes are widely used in the textiles industry due to their ability to reproduce different colours and shades, easy application method and huge production to fulfill the demands of ever-increasing population. Reactive dyes are most commonly used for cotton fabric, due to their brilliant colours and good washing fastness. However, the major problem with reactive dyes is that they consume huge amounts of alkali or salts as mordant for the fixati

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Fobiri, George Kwame. "Synthetic Dye Application in Textiles: A Review on the Efficacies and Toxicities Involved." Textile & Leather Review 5 (May 7, 2022): 180–98. http://dx.doi.org/10.31881/tlr.2022.22.

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The application of dyes in textile colouration has existed for centuries. Dyes are obtained from both natural and synthetic sources. Synthetic dyes are manufactured from chemical compounds and have been placed on a high pedestal in the textile industry due to their improved colour fastness, varied range of pigments and easy application as compared to natural dyes. However, they have been identified to be harmful to the environment and human health by researchers. When effluent containing harmful chemicals like sodium sulphide is discharged into the environment improperly, they cause a lot of d

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Handayani, Rezqi, and Henilisa Yuliyana Larasati. "IDENTIFIKASI PEWARNA SINTESIS PADA PRODUK OLAHAN BUNGA ROSELLA (Hibiscus sabdariffa) DENGAN METODE KROMATOGRAFI LAPIS TIPIS." Anterior Jurnal 17, no. 2 (2018): 130–35. http://dx.doi.org/10.33084/anterior.v17i2.11.

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Food additives are often used or added intentionally into processed food or beverage products are dyes. Dyes are divided into two types: natural dyes and synthetic dyes. Syrup circulating in the community generally contains a lot of synthetic dyes, this is done by manufacturers to reduce production costs and make the appearance of materials to be attractive. The use of synthetic dyes in addition to having a positive impact on producers and consumers can also cause a negative impact, especially for consumers. When compared with natural dyes, synthetic dyes have the more negative impact on healt

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Goktas, Osman, Yasar Tahsin Bozkaya, and Mehmet Yeniocak. "Obojenje lakova za namještaj s biljnim bojilima i određivanje njihove otpornosti na vremenske utjecaje." Drvna industrija 74, no. 2 (2023): 206–12. http://dx.doi.org/10.5552/drvind.2023.0050.

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The main goal of the study is to produce eco-friendly furniture dyes by using bio-colorants and to determine the color stability of these dyes in outdoor conditions. In this regard, dye extracts obtained from red beet (Beta vulgaris), safflower (Carthamus tinctorius L.), and purple cabbage (Brassica oleracea), as a bio-colorant source, were applied to MDF test panels by mixing with water-based synthetic lacquer coatings. Also, three different synthetic dyes were applied to MDF test panels in order to compare the results with eco-friendly natural dyes. Natural dyes were mixed with metal and nat

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Uddin, Mohammad Gias. "Effects of Different Mordants on Silk Fabric Dyed with Onion Outer Skin Extracts." Journal of Textiles 2014 (December 10, 2014): 1–8. http://dx.doi.org/10.1155/2014/405626.

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At present, a higher demand is put towards the use of natural dyes due to increased awareness of the environmental and health hazards associated with the synthesis and use of synthetic dyes. This research was conducted using onion outer skins as a potential source of natural plant dyes. In this study, extraction of dye was carried out in aqueous boiling method. Premordanting technique was followed using different mordants, namely alum, ferrous sulphate, tin, tannic acid, tartaric acid, and their combinations on silk fabric. Fabric samples dyed without using any mordant were then compared with

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Ko, Kyung-Yuk, Eun-Young Choi, Se-Hee Jeong, et al. "Simple HPLC-PDA Analysis to Determine Illegal Synthetic Dyes in Herbal Medicines." Applied Sciences 11, no. 14 (2021): 6641. http://dx.doi.org/10.3390/app11146641.

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Various synthetic dyes are artificially added to herbal medicines for the purpose of visual attraction. In order to monitor the illegal usage of synthetic dyes in herbal medication, a rapid and straightforward analysis method to determine synthetic dyes is required. The study aimed to develop and validate a high-performance liquid chromatography (HPLC) analysis to determine ten synthetic dyes in Hawthorn fruit, Cornus fruit, and Schisandra fruit. Ten synthetic dyes such as Tartrazine, Sunset yellow, Metanil yellow, Auramine O, Amaranth, Orange II, Acid red 73, Amaranth, New Coccine, Azorubine,

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Haji, Aminoddin. "Plasma activation and chitosan attachment on cotton and wool for improvement of dyeability and fastness properties." Pigment & Resin Technology 49, no. 6 (2020): 483–89. http://dx.doi.org/10.1108/prt-02-2020-0017.

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Purpose The dyeing of cellulosic and proteinous fibers with natural and synthetic colorants usually needs large amounts of metal salts to promote the dyeing procedure. To get rid of the necessity to use metal salts, plasma treatment and subsequent attachment of chitosan biopolymer were considered as green processes for surface functionalization of wool and cotton. The purpose of this paper is to investigate the effect of oxygen plasma treatment and attachment of chitosan on the dyeability of wool and cotton fabrics using walnut and weld as model natural dyes, as well as C.I. reactive blue 50 a

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Sun, Wenhao, Yaohui Dai, Teng Lai, Xin Jin, and Mingming Wu. "Research on the application of biological mordant dyeing with natural dyes." Advances in Engineering Innovation 9, no. 1 (2024): 81–85. http://dx.doi.org/10.54254/2977-3903/9/2024091.

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With the continuous development of society, the dyeing and finishing field is transitioning towards green sustainability and multifunctionality. The main direction is to dye fabrics using natural dyes with the aid of mordants. In recent years, the technology of biological mordant dyeing with natural dyes has become a research hotspot. This paper first discusses in detail the application of biological mordant technology with natural dyes on various types of dyed fabrics, including plant fibers, animal fibers, and synthetic fibers. It then introduces the application of biological mordant dyeing

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S Patel, Kanhaiya. "Carcinogenic Potential of Synthetic Food Dyes and Safer Alternatives: A Detailed Review of Risks, Mechanisms, and Natural Substitutes for the Food Industry." International Journal of Pharmaceutical Research and Applications 10, no. 1 (2025): 16–18. https://doi.org/10.35629/4494-10011618.

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The growing prevalence of synthetic food dyes in the food industry has led to concerns regarding their long-term safety, particularly their potential carcinogenic effects. Synthetic dyes, such as Red 40 (Allura Red AC) and Carmoisine (E122), have been implicated in several animal studies for their potential to induce cancerous changes, though human data remains inconclusive. The International Agency for Research on Cancer (IARC) has classified certain food dyes as “possibly carcinogenic to humans” based on these findings. This review delves into the carcinogenicity of synthetic food dyes, prov

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Shankar, Bali* Vishal Lande Rushikesh Navale Dhananjay Popalghat Karan Gavhane Nilesh Gwali Dr. Shivshankar Mhaske Pankaj Fitawe. "Natural Dyes: A Comprehensive Review on Medicinal Plant-Based Pigments and Culinary Herbs as Flavor Enhancers." International Journal of Pharmaceutical Sciences 3, no. 5 (2025): 4117–28. https://doi.org/10.5281/zenodo.15508721.

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The demand for natural dyes worldwide has grown, driven by an increasing consciousness of the therapeutic qualities inherent in natural dyes. Natural dyes are obtained from a number of sources including plants, insects, animals, and minerals. They have received attention because they are perceived as safer than synthetic colors, most of which have been banned since they are implicated in the possibility of causing allergy-like reactions or carcinogenicity. Interestingly, plant pigments among natural dyes contain a variegated set of medicinal properties. This review presents a detailed discussi

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Tamburini, Diego, Ludovic Durand, and Zeina Klink-Hoppe. "Refining the Production Date of Historical Palestinian Garments Through Dye Identification." Heritage 8, no. 1 (2025): 28. https://doi.org/10.3390/heritage8010028.

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The dyes used to produce two Palestinian garments from the British Museum’s collection attributed to the late 19th–early 20th century were investigated by high pressure liquid chromatography coupled with diode array detector and tandem mass spectrometry (HPLC-DAD-MS/MS). Palestinian embroidery is a symbol of national identity and the topic of scholarly research. However, little attention has been given to the dyes and how these changed with the introduction of new synthetic formulations in the second half of the 19th century. The results revealed the use of natural indigoid blue and red madder

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Rusdi, Suharno, Huda F. Maulana, Nuriaji L. Samudro, and Achmad Chafidz. "Investigating the Potential Use of Papaya Leaf Extract as Natural Dyes in the Textile Industry." Materials Science Forum 991 (May 2020): 129–34. http://dx.doi.org/10.4028/www.scientific.net/msf.991.129.

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Synthetic dyes are widely used in the majority of the large textile industry. The use of synthetic dyes can cause water pollution from sewage disposal of the textile industry. Some types of synthetic dyes contain heavy metals that are harmful to human health and can damage the environment. With increasing awareness of the current environmental problems, people begin to focus on returning back to natural dyes. These natural dyes can be extracted from various parts of plants, such as leaves, flowers, fruit, wood or stems, and roots. Papaya leaves have the potential to be used as a basic ingredie

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Nagraj. "The Dye Industry and Environmental Impact: Part II the Toxic Truth." ENTECH 2, no. 2 (2024): 14–16. https://doi.org/10.5281/zenodo.14842527.

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When it comes to choosing the right clothing, most of us focus on the style, fit and comfort. But have you ever stopped to think about the dyes used in dye industry for color your clothes? Most of the clothes we wear are dyed with <strong>synthetic</strong> dyes. These can harm our health. They can also damage the environment.<strong>The fashion industry has been thriving on the use of vibrant and eye-catching colors in clothing.</strong> With the constant demand for new and trendy clothes, manufacturers are always on the lookout for ways to produce <strong>garme</strong>nts at a fas

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Chan, Alfred, Rubiyatno, and Zarina Akhmetov. "Environmental Impact of Synthetic Dyes on Groundwater in Malaysia: Sources, Distribution, Transport Mechanisms, and Mitigation Strategies." Tropical Aquatic and Soil Pollution 4, no. 2 (2024): 87–99. http://dx.doi.org/10.53623/tasp.v4i2.476.

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Synthetic dyes, extracted from natural sources like insects, plants, coal, and ochre, have become prevalent due to their advantages over natural dyes. However, their production has led to increased environmental pollution, particularly in groundwater. Groundwater contamination from synthetic dyes occurs through advection, dispersion, and retardation. This review aims to highlight the environmental impacts of synthetic dyes on groundwater, elucidate the mechanisms of dye transport, and propose effective strategies for monitoring and mitigating contamination. Urban runoff carries dyes from surfa

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Akter, Taslima, Shashanka Shekhar Sarker, SMA Sujan, and Sahana Parveen. "Antimicrobial Activity of Natural and Synthetic Dyes Used in Leather Dyeing: A Comparative Study." Textile & Leather Review 6 (August 21, 2023): 387–400. http://dx.doi.org/10.31881/tlr.2023.077.

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Both natural and synthetic dyes have gained increasing attention in the leather dyeing process due to environmental and health considerations. This research was designed to determine and compare the antimicrobial efficacy of four natural dyes (Acacia catechu, Trema orientalis, Camellia sinensis, Swietenia macrophylla) with four synthetic dyes (brown BFR, brown NG, brown EDK, red G) to develop safer leather dyeing process. The above eight dyes were evaluated against eight prevalent pathogenic and opportunistic pathogenic bacteria Bacillus megaterium, Bacillus cereus, Bacillus subtilis, Staphylo

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Cho, Hang-sung, and Eui-jin Shim. "Acid Dye Dyeability and Finishing Effect of Oak Wood for Indoor Interior Use." Research Institute of Human Ecology 26, no. 3 (2022): 143–50. http://dx.doi.org/10.36357/johe.2022.26.3.143.

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Background/Objectives: In this study, we compared and analyzed the dye ability of oak-patterned materials with acid dyes, and evaluated their performance as interior materials. Use of processed timber can help reduce environmental damage and the economic burden of resources (important problems with use of raw timber) and can meet the needs of various fields where the sensibility of raw timber is required. Veneer wood is positioned as a high-value-added product due to its luxury and beauty, and it is used in various fields as a building-related material, such as interior decoration, furniture,

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MIURA, Y., I. HIRAI, K. ISHII, et al. "PIXE ANALYSIS OF DYES USED IN TRADITIONAL JAPANESE CARPETS (NABESHIMA-DANTSU)." International Journal of PIXE 22, no. 01n02 (2012): 45–50. http://dx.doi.org/10.1142/s0129083512400281.

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NABESHIMA-DANTSU is the name of the first Japanese-made carpets which have been produced in the Nabeshima domain (Saga Prefecture) since the later Edo period. The NABESHIMA-DANTSU carpets have been woven from one kind of cotton, and have been dyed with various dyes and color fixatives. We analyzed pieces of the NABESHIMA-DANTSU carpets stored in the Saga Prefectural Museum and the Saga Prefectural Art Museum, by using PIXE method in order to detect dyeing methods used in them. We also analyzed dyes, color fixatives and cotton used in the traditional Japanese dyeing method. From the NABESHIMA-D

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MD., Ashnaim Bari, and Rowshanuzzaman Kanon Md. "Dyeing of Cotton Fabric using Malabar Spinach (Basella alba) Leaves Aqueous Extract." International Journal of Innovative Science and Research Technology 7, no. 2 (2022): 656–59. https://doi.org/10.5281/zenodo.6345473.

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With the increasing awareness of synthetic dyes' health and environmental hazards, the coloring agents are manufactured using natural products due to their biodegradability, and high environmental compatibility is widespread nowadays. This study dyed cotton fabrics with the natural color extracted from Malabar spinach (Basellaalba) leaves. The colorant was extracted from the leaves using an aqueous extraction technique, and the cotton fabric was dyed in two processes by only the pure coloring extraction and added NaCl as a fixation agent to increase the fixation rate of natural dyes. Final

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