Academic literature on the topic 'Dyers'

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Journal articles on the topic "Dyers"

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O Soyinka, Oluwatosin, Akinwunmi F Akinsanya, Festus A Odeyemi, Adebayo A Amballi, Oritogun K Sunday, and Omobola A Ogundahunsi. "Effect of occupational exposure to vat-textile dyes on follicular and luteal hormones in female dye workers in Abeokuta, Nigeria." African Health Sciences 24, no. 1 (April 1, 2024): 135–44. http://dx.doi.org/10.4314/ahs.v24i1.17.

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Background: Some synthetic dyes used mainly in textile industries have been associated with endocrine disruption, resulting ininfertility, among other disorders. It is unknown if occupational exposure to Vat textile dyes among premenopausal dyers altershormonal levels. Objectives: We aimed at determining the probable effects of occupational exposure to Vat dyes on reproductive hormones offemale textile dyers in the follicular and luteal phases while relating this to age categories and duration of exposure. Methods: Thirty-three premenopausal Vat textile dyers at “Itoku”, Abeokuta, Nigeria, among a population of about 80 femaledyers were age and sex-matched with 55 non-exposed (control) female participants. Using semi-structured questionnaires, socio-demographic, occupational details and the LMP of participants were obtained. Serum samples were collected in follicularand luteal phases and assayed for female sex hormones using Enzyme Immunoassay. Mann-Whitney U and Z- statistic were usedfor comparison of the two groups. P-value < 0.05 was considered to be significant. Results: In the follicular phase, the result showed a lower mean FSH ranking (in age category ≤20 years) and higher (p<0.05)Estradiol ranking (in age category 31-40 years) in the exposed than the unexposed. Mean ranks of Progesterone and Estradiol inthe luteal phase (age category 31-40 years) were higher (p<0.05) in the exposed, while Estradiol (age category ≥41years) rankedlower (p<0.05). Prolactin demonstrated a significant inverse relationship with the duration of exposure. Conclusion: Occupational exposure to Vat dye among female dyers in Abeokuta is associated with some sex hormone disruptionwhich appears to be age and duration of exposure-related. Keywords: Follicular phase; luteal phase; dye workers; sex hormone; premenopausal.
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Houghteling, Sylvia, and Nobuko Shibayama. "Tools of the Master Dyer: Dye Materials in Seventeenth and Eighteenth Century South Asian Painted Cotton Textiles at the Metropolitan Museum of Art." Textile Museum Journal 46, no. 1 (2019): 10–25. http://dx.doi.org/10.1353/tmj.2019.a932745.

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Abstract: This article reports on an analysis of the dyes used in painted cotton textiles from seventeenth- and eighteenth-century India in the collections of the Metropolitan Museum of Art. The purpose of our study was to identify which red dyes were used to produce the textiles, and to determine whether dyers used cheaper substitutes for indigo as dyestuffs. Our findings preliminarily suggest that chay root ( Oldenlandia umbellata L.) was not only a dye material used along the Coromandel Coast, but also traveled through overland trade networks for textile dyeing in central India. The results of this analysis contribute to understandings of regional specializations in dyestuffs. More broadly, this study may provide evidence for the mobility of dye materials and the agency that South Asian dyers had to choose their dye materials.
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Nikitenko, R. P., E. A. Koichev, and S. P. Degtyarenko. "Diagnostic biopsy of sentinel lymph nodes in mammary gland cancer." Klinicheskaia khirurgiia 89, no. 11-12 (December 30, 2022): 23–27. http://dx.doi.org/10.26779/2522-1396.2022.11-12.23.

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Objective.To improve the diagnostic biopsy of sentinel lymph nodes in patients, suffering mammary gland cancer, using fluorescent lymphography, and to reduce the quantity of postoperative complications. Materials and methods. In 2016 – 2021yrs period on the base of Odessa Regional Clinical Hospital 400 patients, suffering mammary gland cancer Stages Т1–Т3N0М0, were operated on with application of fluorescent lymphography, using two dyers – the patent blue and indocyanine green. All the patients were distributed into two groups. In Group I (a control one) in 200 patients the sentinel lymph nodes biopsy was performed. The dyer patent blue was applied for the lymph nodes coloring.In Group II (the main) in 200 women–patients the sentinel lymph nodes biopsy, using the patent blue and fluorescent dyer indocyanine green, was performed. Both dyers were injected subdermally along the external areolar edge in the dose 2 ml of the dyer solution. Results. Total 5–year survival after axillary lymphodissection and after the sentinel lymph node biopsy have constituted 91and 92%, accordingly, while the recurrence–free 5–year survival – 82.2 and 83.9%, accordingly. Regional recurrence in sentinel lymph nodes on the affected mammary gland side was diagnosed in 1.1% of the women–patients. In 58% of the women–patients the sentinel lymph nodes were clear, and that’s why a subsequent lymphodissection was not indicated to perform. Metastatic lymph nodes were revealed in 42% of the women–patients. Conclusion. The method of diagnostic biopsy of sentinel lymph nodes in patients, suffering mammary gland cancer, using dyers, permits in majority of them to abandon traumatic operations in favor of organ–preserving interventions, thus reducing the postoperative complications rate significantly.
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Cviklová, Helena. "Dyers of Rožnov." Acta musealia 19, no. 1-2 (June 15, 2021): 46–90. http://dx.doi.org/10.62317/amu.2021.003.

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Lupatini, Emile, and Natalia Ortega Saez. "An Unknown 18th-Century Flemish Dyers Manuscript from Antwerp (1778–1802)." Heritage 7, no. 5 (May 9, 2024): 2458–76. http://dx.doi.org/10.3390/heritage7050117.

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This paper presents a historical analysis of a rare dyer’s manuscript, preserved within the Museum of Industry in Ghent, Belgium. The manuscript, originating from a dyer in late 18th-century Antwerp, includes an extensive collection of recipes. The study will enable researchers to better grasp the practices of traditional dyeing techniques and materials in the region during that time. The manuscript focuses primarily on the dyeing of woolen fabrics. Approximately 90 of the 132 recipes utilize red dyes. Recipes for dying orange, brown, black, blue, and green colors are also described. The document mentions the use of madder, brazilwood, redwood, and cochineal. To create a variety of red shades, the dyer describes how fabrics were treated with different mordanting compounds, with alum and tin as the main ingredients, and how the dyeing solutions were prepared. The resulting colors include ‘madder red’, ‘formal red’, ‘crimson’, ‘scarlet’, ‘Turkish red’, ‘fire color’ and ‘flesh color’. In addition to the dyeing recipes, the manuscript contains various accounting documents and correspondences between the dyer, customers, and suppliers. Lastly, over 100 original, colored samples are attached to the described recipes. In this paper, the artifact’s contents will be disclosed, comprising recipes with attached samples and correspondence. Findings resulting from archive research will be included, contextualizing and placing the dyer in their urban and social context. The paper concludes by discussing its potential limitations and provides avenues for possible future research.
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Dewey, Steven A., Kevin P. Price, and Doug Ramsey. "Satellite Remote Sensing to Predict Potential Distribution of Dyers Woad (Isatis tinctoria)." Weed Technology 5, no. 3 (September 1991): 479–84. http://dx.doi.org/10.1017/s0890037x00027184.

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Landsat-5 Thematic Mapper spectral data and field survey information were combined to identify specific land cover types associated with 1741 dyers woad infestation points on the Cache National Forest in northern Utah. Ten of 60 possible cover types were strongly associated with current dyers woad infestations, and therefore considered highly suited to establishment and survival of the weed. Non-infested land of the same “highly suited” cover types comprised an additional 24 714 ha within the 149 021-ha study area, suggesting the potential for an eventual 124-fold increase in dyers woad incidence on the forest.
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Hamer, N. "II-The Dyers' View." Journal of the Society of Dyers and Colourists 53, no. 4 (October 22, 2008): 135–37. http://dx.doi.org/10.1111/j.1478-4408.1937.tb01958.x.

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Ashraful Alam, Zakaria Ahmed, Neaz Morshed, Pulak Talukder, and Taslima Rahman. "Research on reuse of standing dye bath of reactive dye." International Journal of Frontline Research and Reviews 1, no. 2 (November 30, 2022): 006–10. http://dx.doi.org/10.56355/ijfrr.2022.1.2.0022.

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The aim of the work was to find out suitable method of dyeing so that costly reactive dye bath can be reused without draining them. Because of the hydrolysis of residual reactive dyes due to the fixation conditions and because of relatively large amounts of dyes and salts left in the effluent, reusing hydrolyzed reactive dyes is a challenge to dyers. Two reactive dyes were examined (reactive red, reactive yellow and two fabrics: nylon, silk as well as silk fiber and nylon yarn). When using suitable dyeing conditions by controlling pH and temperature, hydrolyzed reactive dye baths for silk and nylon dyeing showed very good wash and moderate colorfastness.
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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 (December 24, 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 studies of dyed samples toward light and washing.
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LILLIE, R. D. "The Red Dyes Used by Ancient Dyers: Their Probable Identity." Journal of the Society of Dyers and Colourists 95, no. 2 (October 22, 2008): 57–61. http://dx.doi.org/10.1111/j.1478-4408.1979.tb03450.x.

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Dissertations / Theses on the topic "Dyers"

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Goetz, Charity. "Textile dyes techniques and their effects on the environment with a recommendation for dyers concerning the Green effect /." Lynchburg, Va. : Liberty University, 2008. http://digitalcommons.liberty.edu.

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Feldman, Roger A. "Recruitment, training and knowledge transfer in the London Dyers’ Company, 1649-1826." Thesis, London School of Economics and Political Science (University of London), 2005. http://etheses.lse.ac.uk/243/.

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This thesis studies the role of a craft guild as a training organisation. The study looks at the London Dyers’ Company binding and joining records over 150 years, available from the mid seventeenth century to the early nineteenth century. The study initially deals with transmission of knowledge from master to apprentice, a single generation. It then looks at factors associated with chains of transmission over several generations, taking advantage of available occupational specialization data. The Dyers’ Company records of membership are estimated to be at least 94 percent complete from 1710-1792, and probably similarly complete in the earlier period 1660-1710. In 1750, 93 percent and in 1792 81 percent of dyers in livery companies were members of the Dyers’ Company. In those same years, 34 percent in the livery of the Dyers’ Company were not practicing dyers. Chapters 2 and 3 describe the dynamics of the Dyers’ Company from binding and joining information. The apprentice binding data includes information about families of apprentices, their places of residence, their father’s occupation, along with what premia were paid when they were bound. Information is presented about time as a journeyman, about how many apprentices an individual master bound in a lifetime, and about women apprentices and women who bound apprentices. Scattered information about specialized dyeing occupations allowed categorisation of chains of transmission by occupation. One specialty, calico printing, potentially the most innovative of any in the dyeing trade, was not fully represented in the Dyers’ Company records. Sixty one percent of all chains were no more than three generations long. Chains involving silk dyers were more often longer than those involving dyers with no stated specialty. Long chains might either be evidence of technological conservatism, a more technically difficult craft, greater use of innovation, or increased economic activity.
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Fuller, Ann T. "An Autecological Study of Dyers Woad (Isatis tinctoria L.) on Utah Rangeland." DigitalCommons@USU, 1985. https://digitalcommons.usu.edu/etd/6395.

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Northern Utah rangelands have become infested with dyers woad (Isatis tinctoria L.) and control is needed. Mechanical and chemical control on rangelands produce undesirable effects. A possible alternative is biological control, but information is not available on plant response to this control method. This autecological study and simulation of control methods examined dyers woad phenology, seed endurance and response to simulated grazing, hand rogueing and plowing. The phenology study documented dyers woad growth patterns from May 1982 to November 1983. During the first year, 65 percent of the seedlings died while the remaining 35 percent grew rosette leaves. During the following growing season, 50 percent of the remaining population flowered and died. The other 50 percent continued to grow rosette leaves. The seed endurance study showed seed viability remaining high and relatively stable, but germination decreased during the ten month study period. Methods used indicate future germination and viability studies should more closely simulate field conditions. The simulation of control methods involved clipping dyers woad once at three different heights to simulate grazing, hand rogueing and plowing on three different dates that correspond with the phenological stages of initial rosette growth, pre-bolting, and post-bolting. Simulated grazing stimulated plant survival and growth. Simulated plowing and hand rogueing reduced plant survival. Treatment at all three levels after initial rosette growth depressed flowering for one year. Treatment to simulate plowing and hand rogueing during initial rosette growth depressed flowering compared to the untreated controls. Treatment early in the growing season did not significantly affect plants receiving simulated grazing. Seed production was depressed by simulated plowing but was promoted by simulated hand rogueing when compared to untreated controls. The ability of plants to survive and/or flower after treatment could not be predicted from this study because a one time clipping of dyers woad did not produce significant population decreases. A more severe treatment in the form of more clippings per season is suggested for future study.
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Farah, Kassim O. "Autecological and Grazing Control Studies of Dyers Woad (Isatis tinctoria L.) on Northern Utah Rangelands." DigitalCommons@USU, 1987. https://digitalcommons.usu.edu/etd/6448.

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Dyers woad (Isatis tinctoria L.) is a noxious weed on northern Utah rangelands. Chemical and mechanical means of control are unsuitable for rangelands. A potential alternative, biological control, is difficult due to a lack of basic ecological information. To remedy this, some aspects of the population biology and autecolgy of dyers woad were studied. The feasibility of controlling dyers woad by early spring grazing was also investigated via clipping experiments. A population study followed the survivorship of experimentally established populations over two years. Fall germinating individuals (1984) overwintered as rosettes twice and all survivors reproduced successfully. Spring germinating individuals (1985) overwintered as rosettes only once and 87% seeded the subsequent spring. Thus, on a good condition {high seral) foothill rangeland, dyers woad behaved predominantly as a biennial. Peak mortality in both fall and spring populations coincided with summer drought. The population size of dyers woad was constricted at two stages: (i) germination and establishment, and (ii) young rosette. The risk of mortality mortality in young rosettes was 77%. Dyers woad should be targeted for biological control at this vulnerable stage of growth. The seed dispersal pattern of dyers woad was best described by a negative exponential model of the type logy= a+ bx; (r = .78, a= 1.92, and b = -0.02). Ninety-five percent of a11 fruits were deposited within 54cm of mother plants. The root system of dyers woad was predominantly a taproot with some lateral sin the upper 30cm of the soil. There was little difference between mapped taproot and total mapped root lengths of rosette and mature plants. Significant mortality and reduction in reproductive performance occurred only by clipping, on or after 23 May 1984, at 60% or 90% intensity. Clipping twice, at either intensity, before 23 May had no effect on dyers woad. Sheep utilization of dyers woad ceased after mid-May, and had no significant effect on its mortality, percent flowering, and fruit production. Sheep grazing on dyers woad did not occur when much impact on mortality or seed production could be expected. The stocking re qui red to restrict dyers woad will result in range deterioration. More host-specific biological control agents should be tried.
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Spencer, Richard. "The Joint Dyers' Movement : labour and industrial relations in the Lancashire and Yorkshire textile finishing industries 1918-1936." Thesis, Manchester Metropolitan University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251288.

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Owoeye, Omotato Idowu Oke. "Textiles texts and symbols : women dyers and symbols in the Indigo textile dyeing production process in Osogbo Nigeria." Thesis, University of Pretoria, 2017. http://hdl.handle.net/2263/62653.

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Despite the emergence of narrative and humanistic anthropological perspectives on thriving indigenous textile technologies, indigo dyed textile products are often read as homogenous products, devoid of Yoruba women-dyers' symbolic narratives. This ethnographic research on indigo textile dyeing in Osogbo examines the relationship between textile production and ritual by focusing on how indigenous peoples are stimulated to create what they make and the textile makers' unit of expression. A key argument throughout the thesis is that the dyeing act is a ritual performance by women dyers in Osogbo a re-enacted symbolic performance of the formation and evolution of human sociality and the socialization of human beings. It is also a symbolic representation of motherhood (parenthood when it comes to the societal level) a process of inscribing the kadara (destiny) of a child and the development of iwa (character) and ewa (beauty) to be an omoluabi (good and cultured child) in Yoruba ontology. The thesis also explores alkaline water production processes as part of the indigenous indigo textile dyeing processes and the use of adire textile for communication in Osogbo the notions of colour and colour symbolism and the use of texts, proverbs and images on dyed textiles as communicative tools specifically to show the transformatory nature of rituals in indigo textile dyeing.
Thesis (DPhil)--University of Pretoria, 2017.
Anthropology and Archaeology
DPhil
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Farooq, Salma. "The determination of dyers' perceived components of colour difference (depth, brightness and hue) between two similar colours from their spectral reflectance values." Thesis, Heriot-Watt University, 2011. http://hdl.handle.net/10399/2443.

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An algorithm, called the WSF algorithm, was developed which could predict the dyers‟ attributes of colour difference (depth, ΔD, brightness, ΔB, and hue, ΔH*) from the reflectance values of a pair of dyeings, enabling the dyer to take full advantage of colorimetric analysis. The algorithm was based on extensive experimental work to map surfaces of constant visual depth throughout the colour space and the thesis describes the methodology and the necessary calculations to determine the ΔD, ΔB and ΔH values of a pair of dyed samples. This algorithm was compared to other existing algorithms (the DBH and the Sato models) using two data sets with 49 dyed pairs for data set 1 and 117 dyed pairs for data set 2 respectively. The correlation of the values of ΔD, ΔB and ΔH determined using the WSF algorithm with the DBH and the Sato models showed an excellent relationship between these three algorithms for both the data sets. Qualitative comparison of the visual assessments of data set 2 with the WSF algorithm was encouraging but the quantitative comparison of the visual assessment for data set 1 was disappointing. The pre-requisite of the WSF algorithm is the six equi-depth surfaces which have been defined numerically in the CIELAB colour space and previously reported as WSI depth surfaces. The first stage of this algorithm was to generate, using the WSI algorithm, the equi-depth line in the L* C* plane that passes through the L* C* coordinates of the standard. The K/S values of the batch were then iterated, until its depth became equal to that of the standard. At this point, the precise location of the batch on the equi-depth surface might be different from that of the standard. The linear distances between the batch and the standard, gave the differences in depth and brightness between the standard and the batch. A new approach was investigated for the hue correction of dyed pairs, where the hue of the batch was different from that of the standard. Real data of highest possible chroma values from Munsell colour atlas were used to create maximum chroma boundaries which were found necessary for the hue correction of the batch. It was noted that the DBH and the Sato models also incorporated hue correction of the batch. The WSF algorithm described in Chapter 4 contained an iterative stage which created an additional complexity in programming. Therefore an alternative version of the WSF algorithm was developed, called the linear WSF model, which avoided the need for iteration and yielded the same results. This linear WSF algorithm strongly correlated with the WSF (iterative) model and also to other empirical models as well.
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Williamson, Patricia Catherine. "Squaraine dyes." Thesis, Cranfield University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323902.

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Burton, S. J. "Biomimetic anthraquinone dyes." Thesis, University of Cambridge, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383771.

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Leontyev, Alexey E. "Carbazole-Fluorenone Dyes." Bowling Green State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1245273099.

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Books on the topic "Dyers"

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Ratios, ICC Business, ed. Dyers & finishers. London: ICC Business Ratios, 1985.

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Group, ICC Information, ed. Dyers & finishers. 2nd ed. Hampton: ICC Information Group, 1995.

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Ltd, ICC Business Publications, ed. Dyers & finishers. 2nd ed. Hampton: ICC Business Publications Ltd, 1998.

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Group, ICC Information, ed. Dyers & finishers. 2nd ed. Hampton: ICC Information Group, 1996.

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Ratios, ICC Business, ed. Dyers & finishers. London: ICC Business Ratios, 1986.

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Ratios, ICC Business, ed. Dyers and finishers. Hampton: ICC Business Ratios, 1989.

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Ratios, ICC Business, ed. Dyers and finishers. Hampton: ICC Business Ratios, 1992.

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Ltd, Prospect Shop, ed. Dyers and finishers. 3rd ed. Hampton: Prospect Shop, 2003.

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Group, ICC Information, ed. Dyers and finishers. 2nd ed. Hampton: ICC Information Group, 1994.

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Ltd, Prospect Shop, ed. Dyers and finishers. 3rd ed. Hampton: The Prospect Shop, 2002.

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Book chapters on the topic "Dyers"

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Evans, John O. "The Importance, Distribution, and Control of Dyers Woad (Isatis tinctoria)." In Noxious Range Weeds, 387–93. New York: CRC Press, 2021. http://dx.doi.org/10.1201/9780429046483-38.

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Nieto-Galan, Agustí. "Circulating Skills in a European Network: The “Republic of Chemist-Dyers”." In Colouring Textiles, 123–51. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-1081-7_4.

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Suski, W., and T. Palewski. "DyBrS." In Pnictides and Chalcogenides II, 1137–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/10713485_338.

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Gooch, Jan W. "Dyes, Fiber-Reactive Dyes." In Encyclopedic Dictionary of Polymers, 249. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_4150.

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Macleod, Murdo J. "Dyes." In Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures, 1537–39. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-007-7747-7_8543.

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Gooch, Jan W. "Dyes." In Encyclopedic Dictionary of Polymers, 250. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_4164.

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Etzrodt, Günter. "Dyes." In Industrial Coloration of Plastics, 151–92. München: Carl Hanser Verlag GmbH & Co. KG, 2022. http://dx.doi.org/10.3139/9781569908532.009.

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Etzrodt, Günter. "Dyes." In Industrial Coloration of Plastics, 151–92. München, Germany: Carl Hanser Verlag GmbH & Co. KG, 2022. http://dx.doi.org/10.1007/978-1-56990-853-2_9.

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"Katherine, Lady Dyer (Nee D’Oyley) (c.1600-1654)." In Early Modern Women Poets (1520-1700), edited by Jane Stevenson Peter Davidson, Meg Bateman, Kate Chedgzoy, and Julie Saunders, 219–23. Oxford University PressOxford, 2001. http://dx.doi.org/10.1093/oso/9780198184263.003.0080.

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Abstract Katherine was The daughter and co-heir of Thomas D’Oyley of Merton, Oxford shire, and wife of Sir William Dyer of Colrn worth, Bedfordshire, from a cadet branch ‘of The Antient Family of The Dyers in Somerset’. Her husband was The son of Sir Richard Dyer (d. 1607?), a gentleman of The privy chamber to James I. He died in 1621 at The age of 36. Their eldest son, Lodowick (Lewis), of Staughton, Co. Huntingdon, was created a baronet in June 1627, at The age of
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"Hand Weavers, Spinners & Dyers of Alberta (HWSDA)." In The Grants Register 2018, 358. London: Palgrave Macmillan UK, 2018. http://dx.doi.org/10.1007/978-1-349-94186-5_539.

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Conference papers on the topic "Dyers"

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Green, Denise Nicole, and Kelsie Doty. "Meaning Infused into Fiber: Exploring Motivations of Natural Dyers." In Pivoting for the Pandemic. Iowa State University Digital Press, 2020. http://dx.doi.org/10.31274/itaa.12238.

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Ehlinger, Edward. "Direct thermal dyes." In SC - DL tentative, edited by Joseph Gaynor. SPIE, 1990. http://dx.doi.org/10.1117/12.19827.

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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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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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DREXHAGE, KARL H., and WOLFGANG KAISER. "New infrared laser dyes." In Conference on Lasers and Electro-Optics. Washington, D.C.: OSA, 1985. http://dx.doi.org/10.1364/cleo.1985.thj1.

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Frederiksen, Sharli. "Laser dyes and solvents." In ILSC® 2011: Proceedings of the International Laser Safety Conference. Laser Institute of America, 2011. http://dx.doi.org/10.2351/1.5056734.

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Shea, Christopher R., Norah Chen, and Tayyaba Hasan. "Phototoxicity Of Rhodamine Dyes." In O-E/Fiber LASE '88, edited by Tayyaba Hasan. SPIE, 1989. http://dx.doi.org/10.1117/12.960184.

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Speiser, Shaulmi, and Frank L. Chisena. "Optical Bistability In Dyes." In 1988 International Congress on Optical Science and Engineering, edited by Gerald Roosen. SPIE, 1989. http://dx.doi.org/10.1117/12.949985.

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Seeger, Stefan, Jutta Arden-Jacob, Gerhard Deltau, Karl-Heinz Drexhage, Kyung-Tae Han, Malte Koellner, Ralph Mueller, Markus Sauer, and Juergen M. Wolfrum. "Biodiagnostics with multiplex dyes." In OE/LASE '94, edited by Robert F. Bonner, Gerald E. Cohn, Thomas M. Laue, and Alexander V. Priezzhev. SPIE, 1994. http://dx.doi.org/10.1117/12.180774.

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Mašulović, Aleksandra, Anita Lazić, Ivana Đorđević, Dušan Mijin, Nemanja Trišović, Luka Matović, and Jelena Lađarević. "Assessing the pharmacological potential of synthetic colorants with pyridone core." In 37th International Congress on Process Industry. SMEITS, 2024. http://dx.doi.org/10.24094/ptk.024.299.

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Azo dyes are known as structurally diverse class of organic compounds bearing one or more azo groups (–N=N–) as a bridge between organic residues of which at least one is an aromatic moiety. This group of synthetic dyes is obtained easily by the reaction of diazo coupling with high yield. The importance of azo dyes is reflected in the fact that they account for 60 % of the total number of the dye structures known to be manufactured and used in the coloration of textiles, leather, plastics and cosmetics. Aside from their traditional usage, azo dyes are known for their therapeutic properties and wide range of applications in biomedicine and pharmaceutical indus-try. Hereby, the present study aims to investigate the relationship between the chemical structure and pharmacological activity of four azo pyridone dyes taking into account the tautomeric form of dyes. The relationship was determined empirically using appropriate software packages as well as in vitro using the 2, 2’-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) method. The re-sults of in silico prediction suggested that all investigated compounds possess good oral bioavail-ability, while the results of the ABTS assay indicate poor to excellent antioxidant activity depend-ing on the substituent in the phenyl ring. Considering the broad applications of arylazo pyridone dyes, as well as the fact that their relative importance may increase in the future, results obtained in this study serve as a basis for further investigations.
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LIUGĖ, Monika, and Dainius PALIULIS. "Evaluation of dynamic adsorption of dyes from aqueous solutions by applying mathematical modelling with the VS2TDI program and experimental studies." In 12th International Conference “Environmental Engineering”. VILNIUS TECH, 2023. http://dx.doi.org/10.3846/enviro.2023.935.

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Dyes, heavy metals, sulphates, chlorides, petroleum products and other substances can be found in industrial wastewater. Synthetic dyes are divided into different groups according to their chemical composition. It is known that synthetic dyes have toxic and mutagenic properties. Adsorption is considered a reliable method for the removal of various pollutants. The adsorbent synthesized from paper waste, which has a lot of air gaps in its composition, is called aerogel. The maximum sorption capacity reached the value of 0.25–0.28 and 0.12–0.16 mg/g. It is characterized by low density and large surface area. Evaluation of dynamic adsorption of dyes from aqueous solutions was made by using the VS2TDI mathematical modelling program.
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Reports on the topic "Dyers"

1

Boyer, Joseph H. Heterocycles as Laser Dyes. Fort Belvoir, VA: Defense Technical Information Center, June 1992. http://dx.doi.org/10.21236/ada251574.

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Koch, Tad H. Chemical Stabilization of Laser Dyes. Fort Belvoir, VA: Defense Technical Information Center, April 1990. http://dx.doi.org/10.21236/ada224219.

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Pavlopoulos, Theodore G., and Joseph H. Boyer. Quasi-Aromatic Heterocyclics as Laser Dyes. Fort Belvoir, VA: Defense Technical Information Center, April 1989. http://dx.doi.org/10.21236/ada207134.

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Kelley, Charles J., and Yuanxi Qin. Synthesis of Bridged Oligophenylene Laser Dyes. Fort Belvoir, VA: Defense Technical Information Center, May 1991. http://dx.doi.org/10.21236/ada238688.

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Haggart, J. W., L. T. Dafoe, K. M. Bell, G L Williams, E. T. Burden, L. D. Currie, R. A. Fensome, and A. R. Sweet. Historical development of a litho- and biostratigraphic framework for onshore Cretaceous-Paleocene deposits along western Baffin Bay. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/321828.

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Cretaceous-Paleogene strata along the eastern coast of Baffin Island, on Bylot Island, and on associated islands north of Cape Dyer, have been known since the early days of exploration of Baffin Bay in the mid-nineteenth century. Studies of these strata in the 1970s-1990s established their clastic nature and revealed details of their stratigraphy, ages, and depositional settings. Onshore strata in the Cape Dyer area accumulated in close association with volcanic deposits related to late-stage rifting in the Late Cretaceous to Early Paleocene that eventually formed Baffin Bay. In contrast, deposits in more northerly areas, such as the Eclipse and North Bylot troughs on Bylot Island, exhibit similar clastic rocks, but lack conspicuous volcanic strata, and have been associated with either the Sverdrup Basin or the Baffin Bay rift. The litho- and biostratigraphy of these deposits are summarized and discussed in terms of differing and contrasting stratigraphic interpretations, age assignments, and depositional environments.
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Teprovich, J., H. Colon-Mercado, J. Gaillard, L. Sexton, A. Washington, P. Ward, and J. Velten. Non-Carbon Dyes For Platic Scintillators- Report. Office of Scientific and Technical Information (OSTI), October 2015. http://dx.doi.org/10.2172/1224036.

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Boyer, J. H., A. M. Haag, G. Sathyamoorthi, M. L. Soong, K. Thangaraj, and T. Pavlopoulos. Pyrromethene-BF2 Complexes as Laser Dyes: 2. Fort Belvoir, VA: Defense Technical Information Center, June 1992. http://dx.doi.org/10.21236/ada251185.

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Pavlopoulos, Theodore G., and Daniel J. Golich. Triplet Extinction Coefficients of Some Laser Dyes II. Fort Belvoir, VA: Defense Technical Information Center, April 1989. http://dx.doi.org/10.21236/ada207135.

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Roberts, F. D. Development of New Laser-Protective Dyes. Phase 1. Fort Belvoir, VA: Defense Technical Information Center, October 1990. http://dx.doi.org/10.21236/ada260502.

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Dyke, A. S. Surficial geology, Cape Dyer south, Baffin Island, Nunavut. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2011. http://dx.doi.org/10.4095/288965.

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