Добірка наукової літератури з теми "Textiles dyes"

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Статті в журналах з теми "Textiles dyes"

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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 (March 1, 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 fixation of dyes on cotton fabric. Most of the commercial dyeing units and textile export houses have started seeking possibilities to use safe synthetic dyes for dyeing different textiles for targeting the niche market. For that purpose, appropriate standardized scientific dyeing techniques and procedures need to be adopted. In the present study, the use of chitosan as mordant, instead of alkali or salt, was investigated for dyeing cotton fabric with reactive red dye, and the dyeing variables were optimized to attain the maximum colour strength value. The results of study showed that higher percent dye absorption (78.90%), colour strength (18.72) and good wash fastness rating (4/5) were achieved for the chitosan treated dyed fabric, compared to the alkali treated dyed sample (68.36% and 13.03, respectively).
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Gaffer, Hatem, Hamada Mashaly, Shaymaa Hassan Abdel-Rhman, and Mamdouh Hammouda. "Synthesis of novel dyes based on curcumin for the creation of antibacterial silk fabrics." Pigment & Resin Technology 46, no. 6 (November 6, 2017): 478–84. http://dx.doi.org/10.1108/prt-11-2016-0112.

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Purpose The study reported in this paper aims to synthesize some new curcumin containing sulphadiazine and sulphathiazole dyestuffs and study their application in dyeing silk fabrics rendering the dyed fabric antibacterial. Design/methodology/approach Simultaneous dyeing and antibacterial finishing for silk fabric using a new antibacterial acid dye having a modified chemical structure to curcumin were conducted. This modification of curcumin dye was carried out by introducing sulphonamide containing heterocyclic rings sulphadiazine and sulfathiazole through coupling with curcumin. All newly synthesized dyes were characterized by elemental analyses and spectral data (IR, 1H-NMR and MS). The dyeing characteristics of these dyestuffs were evaluated at optimum conditions. Antibacterial activities of the dyed samples at different concentrations of both dyes were studied against gram-positive (Staphylococcus aureus) and gram-negative (Salmonella typhimurium) bacteria. Findings The synthesized curcumin-containing sulphonamide dyes were applied on silk fabrics. The modified dyes exhibited good fastness properties compared to curcumin dye at optimum conditions. It was found that synthesized dyes exhibit good fastness and antibacterial properties efficient against gram-positive and gram-negative bacteria. The dyed silk fabrics showed higher antibacterial efficacy after many times of washing. Originality/value Curcumin, a common natural dye used for fabric and food colouration, was used as an antimicrobial finish due to its bactericidal properties on dyed textiles. A common dyeing process could provide textiles with colour as well as antimicrobial properties. Novel antibacterial dyestuff containing curcumin moieties with sulphonamide coupler components were shown to be an interesting natural colorant for silk with high antimicrobial ability of the dyed silk fabrics. This work has afforded a new acid dye that can be used in medical textile.
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Hansa, A., V. L. Pillay, and C. A. Buckley. "Analysis of reactive dyes using high performance capillary electrophoresis." Water Science and Technology 39, no. 10-11 (May 1, 1999): 169–72. http://dx.doi.org/10.2166/wst.1999.0649.

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Increasing reports of coloured effluent from waste water treatment plants receiving reactive dye waste from textile mills indicate the need to learn more about the fate of these dyes. The project concerns the development of analytical techniques for the analysis of reactive dyes in textile waste. An analytical procedure using High Performance Capillary Electrophoresis (HPCE) and High Performance Liquid Chromatography (HPLC) for the separation of a range of reactive dyes in textile waste water is described. The dyes belong to a range of bis-monochlorotriazinyl dyes used widely in the dyeing of cotton textiles.
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Van der Schueren, Lien, and Karen de Clerck. "Halochromic Textile Materials as Innovative pH-Sensors." Advances in Science and Technology 80 (September 2012): 47–52. http://dx.doi.org/10.4028/www.scientific.net/ast.80.47.

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Recently, an increasing interest in pH-sensitive textiles is recognized. These chromic textiles can be used as flexible sensors for various applications. The aim of the current research is to develop textile pH-sensors through the application of pH-sensitive dyes on various textile materials using different techniques. The results of our study show that halochromic dyes can be incorporated into conventional textiles by a conventional dyeing technique. Also coating the fabrics with a sol-gel layer containing the halochromic dye proved to be successful. The majority of these developed materials showed a clearly visible color change with a pH-variation. The response of the sensors was dependent on the density of the fabric but was generally relatively fast, especially for the sol-gel treated fabrics. The halochromic coloration of nanofibres was realized by directly adding the dyes during the fiber formation, which was shown to be highly effective. Again, a clear halochromic shift was observed. The response of these sensors was fast thanks to the high porosity of nanofibrous non-wovens. Yet, it should be kept in mind that the halochromic behavior of the dyes in the textile matrix altered compared to their behavior in solution which is most likely attributed to dye-fiber interactions. Generally we can conclude that various coloration techniques showed to be effective for the development of innovative textile pH-sensors.
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Houghteling, Sylvia. "Dyeing the Springtime: The Art and Poetry of Fleeting Textile Colors in Medieval and Early Modern South Asia." Religions 11, no. 12 (November 24, 2020): 627. http://dx.doi.org/10.3390/rel11120627.

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This paper explores the metaphorical and material significance of short-lived fabric dyes in medieval and early modern South Asian art, literature, and religious practice. It explores dyers’ manuals, paintings, textiles, and popular and devotional poetry to demonstrate how the existence of ephemeral dyes opened up possibilities for mutability that cannot be found within more stable, mineral pigments, set down on paper in painting. While the relationship between the image and the word in South Asian art is most often mutually enhancing, the relationship between words and color, and particularly between poetry and dye color, operates on a much more slippery basis. In the visual and literary arts of South Asia, dye colors offered textile artists and poets alike a palette of vibrant hues and a way to capture shifts in emotions and modes of devotion that retained a sense of impermanence. More broadly, these fragile, fleeting dye materials reaffirm the importance of tracing the local and regional histories even of objects, like textiles, that circulated globally.
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Ciptandi, Fajar, Tri Hastuti Susilowati, and Mochammad Sigit Ramadhan. "Opportunities of using Spirulina platensis as homemade natural dyes for textiles." Open Agriculture 6, no. 1 (January 1, 2021): 819–25. http://dx.doi.org/10.1515/opag-2020-0167.

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Abstract Some previous studies on Spirulina platensis show that this species contains pigments that can be used as natural dyes in textiles. However, research on the usage of spirulina natural pigment in certain types of conventional textile handicraft home industries in Indonesia has not been conducted. The purpose of this study is to utilize the potential of Spirulina platensis as homemade natural dyes for the development of designs in textiles. Through an experimental methodology, various experiments starting from the extraction process and dyeing were conducted to find out the right way to produce home dyes using spirulina and techniques of surface textile design to apply them in textiles. This is useful as one of the solutions today, since an increasing number of consumers are consciously seeking sustainable products, with no exception to the types of textile products. Therefore, this will provide an opportunity for business collaboration ideas in agribusiness and craft textiles. Additionally, it can add to the nature of textile natural dyes derived from various plant species in Indonesia.
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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 number of types and varying dyeing properties so that this would be a best way to understand the different types of dyes, their applicability, fastness and other properties. In this article, a source for the beginners is provided to understand different kind of the textile fabrics and their importance as well as their drawbacks, dyes and their various types, their interaction with the corresponding fabric, their color strength and color fastness properties.
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Jemo, Danijela, and Djurdjica Parac-Osterman. "Identification of Natural Dyes on 18th Century Liturgical Textiles from Dubrovnik." Fibres and Textiles in Eastern Europe 25 (February 28, 2017): 113–20. http://dx.doi.org/10.5604/12303666.1227891.

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In this paper researches were carried out on fragments of textiles from the 18[sup]th[/sup] century from Dubrovnik, for which, based on the design and art-historical analysis, it was determined that it was a part of an object (pluvial, cope) from liturgical vestments (ecclesiastical textiles) of the Dubrovnik diocese. Using modern non-destructive and micro-destructive methods we conducted the identification of green, blue and red as the dominant tones on the artefacts of historical textiles from Dubrovnik. The identification was based on the application of modern complementary techniques: UV / VIS, HPLC, SEM-EDX and FTIR-ATR. We analysed samples of coloured fiber, as well as ones obtained by the extraction of dyes from the dyed fibers. Archival data on natural dyes used in the Dubrovnik region in the period 14-19th century was taken into account in the identification of the historical textile dyes.
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Verma, Himani, Anita Rani, Manisha Gahlot, Alka Goel, and Anil Kumar Sharma. "Sustainable dyeing of wool fabric with Talaromyces purpurogenus." Journal of Applied and Natural Science 11, no. 4 (December 10, 2019): 796–801. http://dx.doi.org/10.31018/jans.v11i4.2179.

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Natural dyes had been used by human being since ancient times for colouring of various materials including textiles. These were replaced completely by synthetic dyes, continuous use of which created the problem of pollution and environmental degradation. With the development of green technology and increased awareness of sustainability, the use of non-allergic, non-toxic and eco-friendly natural dyes on textiles has become a matter of significant importance. Among the natural sources of colourants, microorganisms such as bacteria and fungi have gained interest in the field of textile coloration. In the present study, the pigment solution yielded from growth of Talaromyces purpurogenus sp. on organic waste was used for dyeing of wool fabric. Under the dyeing conditions i.e. 1:30 M:L ratio, pH 5, 80º C temperature and 45 minutes dyeing time, the percent absorption could reach 57 %, 32%, 36% and 49% respectively. The wool fabric samples dyed with the fungal dye exhibited very good to excellent washing and rubbing fastness properties. The colour pigment obtained from fungal thus offered an opportunity to reduce impact on plant resources for dye source exploration. So it can be concluded from the study that a natural fungal dye could help to sustain the environment and to minimize the over exploitation of natural resources.
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Pal, Anita, Rakesh Kumar, and Yogesh Chandra Tripathi. "Antifungal Finishing of Fabrics with Natural Dyes from Aerial Biomass of Perilla frutescens (L.) Britton." INTERNATIONAL JOURNAL OF APPLIED PHARMACEUTICAL SCIENCES AND RESEARCH 6, no. 01 (January 1, 2021): 8–14. http://dx.doi.org/10.21477/ijapsr.6.1.2.

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Increased environmental consciousness coupled with detrimental impacts of synthetic dyes and consumers’ concern over hygiene, cleanliness and protection, the demand for functional textiles has increased in recent years. Antimicrobial finishing imparts protective properties to textiles besides attractive shades. The study was aimed to determine the antifungal activity of colourants from aerial biomass of Perilla frutescens and dyed fabrics against pathogenic fungi infesting textiles materials. Antifungal activity of natural dye extracted from aerial biomass of Perilla frutescens against the selected pathogenic fungi viz., Aspergillus niger, Aspergillus flavus, Fusarium moniliforme, Fusarium solani, and Penicillium decumbens was evaluated by agar-well diffusion method. The MIC of the natural dye against each of the test fungi was determined by broth dilution method. Dyed silk, wool and cotton fabrics were also evaluated for antifungal activity by standard method. The natural dye showed antifungal activity against all the five test fungi in a concentration dependent manner. The treatment dose of 1000μg/ml recorded the highest growth reduction in all the test fungi, nearly at par with the positive control. The MICs of natural dye against the test fungi ranged from 32.39 to 36.50μg/ml. All kinds of dyed fabrics also showed remarkable antifungal efficacy against the test fungi. Dyed wool fabric exhibited the maximum growth reduction followed by silk and cotton. The result of the study demonstrated the remarkable antifungal activity of natural dye from Perilla frutescens aerial biomass and dyed fabrics. Therefore, Perilla frutescens can be considered as a potential source of natural dye with functional properties and can be used in protective finishing of different kinds of textile fabrics.
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Дисертації з теми "Textiles dyes"

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Carswell, Stewart. "Microanalysis of dyes from textiles." Thesis, Queensland University of Technology, 1991. https://eprints.qut.edu.au/35972/1/35972_Carswell_1991.pdf.

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The discrimination and/or matching of dye extracts is an important aspect of forensic investigations involving textile samples. The aim of this work was to study the use of Fourier transform infrared spectrometry and diffuse reflectance to obtain IR spectra of dye samples, and the subsequent analysis of these spectra using library searching and principle component analysis. The work in this thesis has demonstrated the development of a simple method for obtaining DRIFT spectra of dye samples. Library searching and principle component analysis were used to distinguish between many types of dye samples, including extracts that were not distinguished using TLC.
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Guthrie, J. M. I. "The uptake of disperse dyes by modified wool." Thesis, Queen's University Belfast, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374193.

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Jassim, K. N. "The desorption of anionic dyes from textile fibres." Thesis, University of Leeds, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235397.

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Drivas, Ioannis. "Chemical modification of natural dyes and their application in textiles." Thesis, University of Leeds, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505070.

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Li, Xiaofei. "New colorants for ink jet printing on textiles." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/10113.

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Ferreira, Ester Simoes Baptista. "New approaches towards the identification of yellow dyes in ancient textiles." Thesis, University of Edinburgh, 2001. http://hdl.handle.net/1842/12020.

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Flavonoid dyes were analysed by negative ion mode electrospray ionisation quadrupole ion trap mass spectrometry (ESI QIT MS). New structure-dependent breakdown pathways were identified and the mechanisms were supported by deuterium labelling experiments. The results were extended to provide important structural information on unidentified flavonoids in natural yellow dye extracts. Samples of alum mordanted wool dyed with pure flavonoids or with natural dyes were exposed to accelerated light ageing. Under these conditions photooxidation was found to be the main degradation process. The photodegradation products were analysed by photodiode array high performance liquid chromatography (PDA HPLC) and by liquid chromatography electrospray ionisation quadrupole ion trap mass spectrometry (LC-ESIMS). In general the photodegradation products of flavonols retain information on the nature of substituents of the B-ring and therefore provide partial structural information related to the original dye molecule. The nature of the light source was found not to influence the nature of the photodegradation products detected. No photodegradation products could be identified from flavone or flavonol 3-O-glycosides dyed textiles under the light ageing conditions used. The acid hydrolysis dye extraction process was found to influence the chemical profile of the dye extracts. The identification of the degradation produces allowed their quantification and hence the kinetics of the photooxidation process of flavonoid dyes on wool fibres could be studied. It was found that experimental data did not fit a consecutive first order reaction model. A rapid initial rate of decay of the flavonol was followed by a slower process. The results suggest that a model where the dye population is divided into two groups with different decay rates fits the experimental data adequately. The rates of decay were found to be influenced by the nature of the light source.
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Nicklas, Charlotte. "Splendid hues : colour, dyes, everyday science and women's fashion, 1840-1875." Thesis, University of Brighton, 2009. https://research.brighton.ac.uk/en/studentTheses/101ff2e9-82bb-40f2-b205-d656f58d8de4.

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Great changes characterized the mid- to late nineteenth century in the field of dye chemistry, including many innovations in the production of colours across the spectrum, especially the development of synthetic dyes from coal-tar aniline. From 1840 to 1875, textile manufacturers offered a wide variety of colourful dress textiles to female fashion consumers in both Great Britain and the United States. Middle-class women were urged to educate themselves about dyeing, science, and colour, while cultivating appropriate, moderate attention to fashion in dress. This thesis examines the mid-nineteenth century relationship of fashion, dye chemistry, and everyday science, exploring consumers’ responses to these phenomena of modernity. Paying special attention to the appreciation of chemistry and colour theory during the period, this project considers how the development of new dyes affected middle-class uses and discussions of colours in women’s dress.
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Zhao, Yifang. "La fixation des colorants réactifs au coton aux moyens du rayonnement infrarouge = Fixation of reactive dyes on cotton using infrared radiation." Sherbrooke : Université de Sherbrooke, 2000.

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Billah, Shah Md Reduwan. "Molecular design and synthesis of photochromic dyes for direct application on textiles and leather substrates." Thesis, Heriot-Watt University, 2007. http://hdl.handle.net/10399/2080.

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Peggie, David Alexander. "The development and application of analytical methods for the identification of dyes on historical textiles." Thesis, University of Edinburgh, 2006. http://hdl.handle.net/1842/15623.

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The analytical investigation of several historically important natural yellow and red dye sources is presented, extending previous work on the chemical characterisation of the acid hydrolysed extracts from dyed yarns. The PDA HPLC studies of weld (Reseda luteola L.) dyed yarn extracts found that neither the substrate nor additional steps in the dyeing process significantly altered the relative ratio of the main flavonoid components. Furthermore, their relative photo-degradation rates on the dyed yarns were similar, presenting few problems in the identification of the biological source. In contrast, the relative ratio of the main flavonoid components in dyer’s greenweed (Genista tinctoria L.) dyed yarn extracts was highly dependent on the dyeing process. The PDA HPLC and HPLC ESI MSn investigation of the acid hydrolysed extracts of yarn dyed with the Serratula species, sawwort (Serratula tinctoria L.) and Serratula coronata L., identified their characteristic dyeing components to be luteolin, apigenin, quercetin, kaempferol and 3-O-methylquercetin. Similar studies performed on young fustic (Cotinus coggygria Scop.) dyed yarn extracts identified the main colouring components to be fisetin and sulfuretin. Due to the relatively high photo-degradation rates of many of the characteristic components in both sawwort and young fustic, the identification of historical yarns dyed with these sources was problematic. The dye components characterisic for Mexican cochineal (Dactylopius coccus Costa) were all found to be structurally related anthraquinones, with similar photo-degradation rates on the dyed yarns. Analysis of the principal dye components from brazilwood (Caesalpinia sappan L.) and logwood (Haematoxylon campechianum L.) using negative ion ESI MSn enabled the identification of new, structure dependent, mass spectrometric breakdown pathways. The mechanisms were supported by deuterium labelling experiments and the results were shown to be useful for the structural determination of previously unidentified components. An elimination product observed in the PDA HPLC analysis of hematein dyed yarn extracts was structurally characterised using NMR techniques. A similar component, derived from brazilein, was also observed in brazilwood dyed yarn extracts. A novel approach towards mordant identification using inductively coupled plasma techniques was investigated. ICP MS analysis was successful in identifying the metallic ions present in the acid hydrolysed extracts from both reference and historical yarns. However, interpretation of the results from historical samples was challenging due to the observation of large amounts of both aluminium and iron in the sample extracts. Within the Monitoring of Damage to Historic Tapestries (MODHT) project, yellow and green yarns from a selection of 15th – 17th century tapestries were investigated. Analysis of the yarn extracts identified weld and dyer’s greenweed as the most prevalent yellow dye sources, with young fustic frequency identified in the metal thread core extracts.
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Книги з теми "Textiles dyes"

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Gordon, Paul. Dyes and textiles. London: Education Division, Royal Society of Chemistry, 1996.

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Cisneros, Hernán Jaramillo. Textiles y tintes. [Cuenca, Ecuador]: Centro Interamericano de Artesanías y Artes Populares, 1988.

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Needles, Howard L. Textile fibers, dyes, finishes, and processes: A concise guide. Park Ridge, N.J., U.S.A: Noyes Publications, 1986.

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Dalby, Gill. Natural dyes, fast or fugitive. Strathmiglo: Haldanes Craft & Tools, 1999.

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Natural dyes, fast or fugitive. (Dulverton): (Ashill), 1985.

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Indigo textiles: Technique and history. Asheville, N.C: Lark Books, 1989.

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Visual texture on fabric: Create stunning art cloth with water-based resists. Lafayette, CA: C&T Pub., 2012.

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Bhattacharyya, Niyati. Natural dyes for textiles and their eco-friendly applications. New Delhi: IAFL Publications, 2010.

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author, Davis Karen, ed. Tie dip dye: 25 fashion and lifestyle projects to hand dye in your own kitchen. Newton Abbot: David and Charles, 2015.

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Printed and dyed textiles from Africa. London: British Museum, 2001.

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Частини книг з теми "Textiles dyes"

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Kasiri, Masoud B., and Siyamak Safapour. "Natural Dyes and Antimicrobials for Textiles." In Environmental Chemistry for a Sustainable World, 229–86. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6836-9_6.

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Hatch, K. L. "Textile Dyes as Allergic Contact Allergens." In Textiles and the Skin, 139–55. Basel: KARGER, 2003. http://dx.doi.org/10.1159/000072244.

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Saeed, Batool, Shazia Shukrullah, Muhammad Yasin Naz, and Fareeda Zaheer. "Plasma Degradation of Synthetic Dyes." In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 91–113. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0882-8_3.

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Yıldırım, Fatma Filiz, Arzu Yavas, and Ozan Avinc. "Printing with Sustainable Natural Dyes and Pigments." In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 1–35. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38545-3_1.

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Toledo, Paulo V. O., and Denise F. S. Petri. "Polysaccharide-Composites Materials as Adsorbents for Organic Dyes." In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 185–238. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2832-1_8.

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Mahmoud, Alaa El Din, Manal Fawzy, and Mona M. Amin Abdel-Fatah. "Technical Aspects of Nanofiltration for Dyes Wastewater Treatment." In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 23–35. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4823-6_2.

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Hossain, Md Saddam, Md Yeasin Pabel, and Md Mominul Islam. "Fenton-Like Processes for the Removal of Cationic Dyes." In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 29–89. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0882-8_2.

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Thomas, Bintu, and L. K. Alexander. "Ferrite-Based Magnetic Nanoparticle Heterostructures for Removal of Dyes." In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 213–31. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0882-8_7.

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Dutta, Joydeep. "Chitosan-Based Composite Beads for Removal of Anionic Dyes." In Sustainable Textiles: Production, Processing, Manufacturing & Chemistry, 47–73. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2832-1_3.

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Seipel, Sina, Junchun Yu, Aravin P. Periyasamy, Martina Viková, Michal Vik, and Vincent A. Nierstrasz. "Resource-Efficient Production of a Smart Textile UV Sensor Using Photochromic Dyes: Characterization and Optimization." In Narrow and Smart Textiles, 251–57. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-69050-6_22.

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Тези доповідей конференцій з теми "Textiles dyes"

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Tadić, Julijana D., Jelena M. Lađarević, Maja D. Marković, Aleksandra M. Ivanovska, Mirjana M. Kostić, and Dušan Ž. Mijin. "A NOVEL AZO-AZOMETHINE DYE: SYNTHESIS, DYEING AND ANTIOXIDANT PROPERTIES." In 1st INTERNATIONAL Conference on Chemo and BioInformatics. Institute for Information Technologies, University of Kragujevac, 2021. http://dx.doi.org/10.46793/iccbi21.379t.

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Schiff bases, or azomethine compounds, are commonly employed in the fields of organic synthesis, metal complexes, materials, and engineering. Especially, they have gained importance in medicinal researches, considering their antimicrobial, anticancer, anti- inflammatory, and antioxidant properties. On the other side, azo dyes are the most significant group of synthetic dyes, utilized in textile fiber dyeing. Conjugation of Schiff bases with azo compounds leads to the class of azo-azomethine dyes, which have numerous applications related to their coloration and biological properties. Viscose is a textile material widely used in the medicine. Moreover, viscose fiber can be engineered in many ways which are significant in the development of medical materials. The antioxidant effect is an important feature of medical textiles, such as wound dressings. In this work, the microwave-assisted synthesis and characterization of novel azo-azomethine dye are reported. The azo-azomethine dye is obtained by the condensation between arylazo pyridone dye and 4-aminophenol. The structure of synthesized dye was determined by ATR-FTIR, NMR, and UV-Vis spectroscopy. Azo- azomethine dye was used for dyeing viscose, and the washing fastness of dyed material was evaluated according to the standard method. The viscose fabrics, before and after washing, were analyzed in terms of their color coordinates in the CIELab color space. The antioxidant properties of azo-azomethine dye and dyed viscose fabrics were examined by the ABTS method.
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Santos, Gabriela, and Cristina Carvalho. "Ergonomic Fashion Design: Sustainable Dyes." In Applied Human Factors and Ergonomics Conference. AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1001318.

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Water waste, contamination, and fossil fuel generated energy are acknowledged issues within the textile industry. Current dyeing processes pose serious threat to the environment and human health, often associated with toxic and carcinogenic substances that are released into the environment, through effluents not conveniently treated before being discharged into natural waters. Besides print and pattern, consumers demand for basic characteristics in textiles – these must resist to agents that cause colours to fade. On the other hand, industry must provide a great range of colours and access to huge quantities of coloured substance to dye. Simultaneously, it must be cost-effective. Natural dyes are perceived as less harmful for the environment due to its biodegradable nature. Studies reveal certain natural dyes possess UVR protection properties, as well as antimicrobial and anti-inflammatory assets. Nevertheless, depending on the nature of the dye, there are many advantages and disadvantages to consider.Through an extensive study on various fields such as Biotechnology, History, Ethnography, Biology, Archaeology, amongst many others we gathered information regarding natural coloured compounds, colour sources (plants, animals and microorganisms), ancient and modern techniques of extraction and application. This study shows the evolution of dyes throughout the centuries. It also reveals that the revival of natural dyes in addiction to new cutting edge technologies such as biotechnology might allow for an industrial feasibility.
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Camp, Annabelle, and Kris Cnossen. "DYES, PAINTS, AND INKS: AN OVERVIEW OF VISUAL COMPENSATION TECHNIQUES IN TEXTILE CONSERVATION." In RECH6 - 6th International Meeting on Retouching of Cultural Heritage. València: Editorial Universitat Politècnica de València, 2021. http://dx.doi.org/10.4995/rech6.2021.13521.

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Currently there is no single resource summarizing the different visual compensation methods used in textile conservation. Many techniques are shared through spoken communication, and there is a lack of literature documenting accepted options. The goal of this paper is to introduce common techniques, such as the use of dyes and paints, as well as a less common method, digital printing. The authors discuss when each option is appropriate,addressing their respective color-matching capabilities, workability, appearance when dry,and time and material requirements. Numerous case studies illustrating the use of thesemethods, with an emphasis on painted fills, are presented. The case studies representa range of textile types, such as costume, needlework, historic and modern printed textiles,as well as a range of materials, including silk, cotton, and wool. Case studies includeexamples of visual compensation in areas of stains, patterns, and non-woven structures.The successes and limitations of each method are discussed.
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Budiman, Anatta Wahyu, Bregas S. T. Sembodo, Ahmad Alviansyah, and Irma B. S. Putri. "Application of titanium doped g-C3N4 for the degradation of toxic dyes in textiles wastewater." In THE 5TH INTERNATIONAL CONFERENCE ON INDUSTRIAL, MECHANICAL, ELECTRICAL, AND CHEMICAL ENGINEERING 2019 (ICIMECE 2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0000663.

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Ranthunga, R. G. S. M., K. V. Wanigasekara, and S. V. Udayakumara. "Dyeing of Cotton Fabric with a Natural Dye Extracted from Areca Concinna Peel." In ERU Symposium 2021. Engineering Research Unit (ERU), University of Moratuwa, 2021. http://dx.doi.org/10.31705/eru.2021.2.

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Анотація:
In modern world, most of the countries tend to use the eco-friendly concept in many industries to minimize environmental pollution [1]. Synthetic dyes that are used in the textile industry offer more unfavourable and harmful effect to human beings such as carcinogenic, health-hazardous like skin allergies, toxic etc. And also, there is no systematic way to dispose of synthetic waste in the environment. So that it can be harmful to the ecosystem [2]. Therefore, the world tends to use natural dyes instead of synthetic dyes. Natural dyes have many advantages than synthetic dyes such as non-carcinogenic, eco-friendly, non-allergic, non-hazardous to human beings, etc. Natural dyes are mainly extracted from three different sources such as minerals, plants, and insects. Among these, plants are the most abundantly used natural dye source to extract dyes [3]. The main objective of this study was to extract natural dye from areca concinna peels and use extracted dye to dyeing the cotton fabrics.
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Zabolotnaya, Elena, and Irina I. Menishova. "Analysis of the efficiency of using purified household waste water in technologies of the textile industry." In INTERNATIONAL SCIENTIFIC-TECHNICAL SYMPOSIUM (ISTS) «IMPROVING ENERGY AND RESOURCE-EFFICIENT AND ENVIRONMENTAL SAFETY OF PROCESSES AND DEVICES IN CHEMICAL AND RELATED INDUSTRIES». The Kosygin State University of Russia, 2021. http://dx.doi.org/10.37816/eeste-2021-2-17-20.

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Shown is the use of purified domestic water (Cuban treatment facilities), in decoction and dyeing with direct, active, vat dyes and cubosol dyes. It was found that the quality of decoction and dyeing with the use of water after the aeration tank and after primary cleaning from the stage of secondary settling is not inferior in quality to the traditional technology of decoction and dyeing. It is shown that the introduction of softeners into the composition of the dye bath of the proposed technology significantly increases the quality of the dye output on the fiber.
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Hunting, Brad, Stephen Derby, and Raymond Puffer. "A Visualization Model for Printed Woven Textiles." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/cie-5550.

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Abstract This paper describes significant issues relating to the visual response modeling of on demand printed textiles. The visualization technique described comments on surface geometry, dye spread, substrate color, and color space conversion. The observations are based on experimental data and account for fiber properties, thread geometry, and weave geometry. This work is applicable to pre-press visualization of random access dot placement printed textiles. Software was developed to implement a model of printed textile visualization based on the issues presented here. The visualization process provides rapid evaluation of printing results to design parameter changes.
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Dajić, Ana, Milica Karanac, and Marina Mihajlović. "Application of Fenton's Reagent in the Coloured Textile Wastewater Treatment." In 34th International Congress on Process Industry. SMEITS, 2021. http://dx.doi.org/10.24094/ptk.021.34.1.27.

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Анотація:
Sintetic dyes used in textile industry are very stabile molecules, which greatli influence wastewater treatment. Wastewater treatment is one of the most important elements of pollution control but improved oxidative processes could be an easy and successful way to combat this problem. For the purposes of this research, wastewater was simulated so that the quality is like waste water from the textile industry. Dye from simulated textile industries wastewater was removed using a Fenton reagent. The quantities of chemical agents used are in accordance with the principles of cleaner production and compliance with the requirements for the preservation of the environment.
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Carvalho, Cristina, Gianni Montagna, Carla Costa Pereira, and Carlos Manuel Figueiredo. "Biodyes: A new solution for textile dyeing technology." In 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1001548.

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The Textile Industry is one of the most representative industries in the world's industrial structure and has always assumed an important role in the national economy. Globally, and according to a study by Grand View Research, this industry represented 961.5 billion dollars in 2019 (Grand View Research - Global textile market 2020-2027).However, this sector represents the second most polluting industry in the world, and the environmental impacts occur, above all, in terms of water consumption, soil erosion, CO2 emissions and the resulting residues.The textile industry is responsible for the production of 2.1 billion tons of waste, most of which are discarded into the water ecosystem, essentially during the dyeing processes. In fact, dyeing is one of the most polluting processes in the textile industry, representing a high source of pollution of water circuits and environmental ecosystem. According to the World Bank, textile dyeing industries are responsible for 20% of industrial water pollution.This reality acquires even greater proportion when analyzing the quantities of dyes produced. Every year, it is estimated that around 10,000 types of dyes and pigments, and 7x105 tons of synthetic dyes are produced in the market, for this sector. From this production, more than 200,000 tons of dyes are released into industrial effluents during the textile processing phases (dyeing and finishing).To reduce the environmental footprint caused by the textile industry, the replacement of synthetic dyes by others from natural compounds has been the subject of extensive research, through the development of new ways of coloring textile materials.One of the emerging research areas is related to the exploration of obtaining natural dyes, from microorganisms, called Biodyes.The research aims to develop a sustainable dyeing process, through the production of biodyes, from the metabolic study of the production of microorganisms.It is known the potential that exists in the generation of color and a wide spectrum of functionalities, from biotechnology, regarding the metabolic pathway of certain microorganisms, in the specific case from bacteria such as E. Coli. The main advantages of the innovation proposed in the investigation of this research work are compared to synthetic dyes/pigments, its very low environmental impact, in terms of consumption of material and energy resources, environmental pollution and non-toxicity of the resulting effluents. At the same time, the production of dyes from microorganisms, bacteria and/or fungi, has benefits compared to natural alternatives of plant origin due to its independence from seasonal limitations and climatic conditions, as well as the rapid growth of some substances and therefore with much higher biological yields and consequent industrial application.
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Kerkez, Đurđa, Milena Bečelić-Tomin, Gordana Pucar Milidrag, Vesna Gvoić, Aleksandra Kulić Mandić, Anita Leovac Maćerak, and Dragana Tomašević Pilipović. "Treatment of wastewater containing printing dyes: summary and perspectives." In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p31.

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Анотація:
Synthetic dyes are widely used in textile, printing, leather tanning, cosmetic, drug and food processing industries. The printing and dyeing industry is considered as one of the most polluting industrial sectors. The printing process is very versatile and includes printing on paper as well as printing on textile, plastic and other materials. After the printing process is completed, various chemicals such as ethers, alcohols, phenols, aldehydes, ketones, benzene, and esters are used in the cleaning procedure. Resulting wastewater often contains a variety of solvents, surfactants, dyes, and other chemicals, thus greatly increasing the difficulty of wastewater treatment. Improper discharge of printing and dyeing wastewater into water bodies will have several effect, beginning with aesthetical issues followed by destruction of the aqueous ecosystem due to light attenuation, oxygen consumption and toxicity effects. Therefore, it is very important to find out and optimize printing and dying wastewater treatment techniques. Processes for dye removal from wastewater can be physical, chemical, biological and more recently hybrid treatments. Physical processes such as adsorption, based on mass transfer mechanism, are commonly used method mainly due to ease of operation and high efficiency. Chemical processes including coagulation and flocculation, advanced oxidation processes and electrochemical treatment are usually more expensive due t chemicals use, equipment requirements and electrical energy consumption. However, these techniques are destructive and may lead to total mineralization of dye molecules and accompanying pollutants. Biological treatment is a low-cost and environmentally friendly process that produces less sludge. This method has significant advantages but dye molecules are less prone to this kind of treatment as they are made to be stable and reluctant. So, the adjustment and optimization of biological treatment, for dye removal, is an ongoing field of research. In recent studies hybrid processes are gaining more attention, combining different techniques. Integrating treatments, as a cost-saving and time-saving process, can represent optimal solution for printing wastewater treatment.
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Звіти організацій з теми "Textiles dyes"

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Sanders, Eulanda A., and Chanmi G. Hwang. That’s Just Nuts! George Washington Carver: Textile Dye & Pigment Chemist. Ames: Iowa State University, Digital Repository, 2014. http://dx.doi.org/10.31274/itaa_proceedings-180814-1119.

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