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Journal articles on the topic 'Dyers'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 July 2024

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

Karapanagiotis, Ioannis, Omar Abdel-Kareem, Paraskevi Kamaterou, and Dimitrios Mantzouris. "Identification of Dyes in Coptic Textiles from the Museum of Faculty of Archaeology, Cairo University." Heritage 4, no. 4 (October 7, 2021): 3147–56. http://dx.doi.org/10.3390/heritage4040176.

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High Performance Liquid Chromatography coupled to a Diode-Array-Detector (HPLC-DAD) is used to investigate samples which were extracted from ancient Egyptian textiles (4th–5th c. AD) of the Museum of Faculty of Archaeology, Cairo University. Madder is identified in several samples. According to semi-quantitative results, which are obtained from HPLC peak areas measured at 254 nm, madder that is rich in purpurin and poor in alizarin is identified in samples which were treated (i) only with madder and (ii) with madder and either indigo/woad (Indigofera species and other/Isatis tinctoria L.) or weld (Reseda luteola L.). The madder dye used in these samples could have been originated from Rubia peregrina L. However, the possible use of Rubia tinctorum L. (or other plants of the Rubiaceae family) by the Egyptian dyers cannot be ruled out, particularly if methods were developed by the ancient dyers to affect and control the relative composition of madder dye. The HPLC peak area ratio of alizarin versus purpurin is very high (>2.2) for samples which were treated with madder (probably originated from R. tinctorum) and a tannin source. Finally, in some samples, only indigoid dyes (indigo/woad) are identified.

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12

Newbury, F. G. "Stripping Agents for Garment Dyers." Journal of the Society of Dyers and Colourists 29, no. 5 (October 22, 2008): 165–66. http://dx.doi.org/10.1111/j.1478-4408.1913.tb00731.x.

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13

Brewin, ArthurH. "The Worshipful Company of Dyers." Journal of the Society of Dyers and Colourists 51, no. 10 (October 22, 2008): 352–55. http://dx.doi.org/10.1111/j.1478-4408.1935.tb01843.x.

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14

Speakman, J. B., and S. G. Smith. "Society of Dyers & Colourists." Journal of the Society of Dyers and Colourists 52, no. 4 (October 22, 2008): 121–35. http://dx.doi.org/10.1111/j.1478-4408.1936.tb01913.x.

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15

Farah, Kassim O., Ann F. Tanaka, and Neil E. West. "Autecology and Population Biology of Dyers Woad (Isatis tinctoria)." Weed Science 36, no. 2 (March 1988): 186–93. http://dx.doi.org/10.1017/s0043174500074695.

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Dyers woad (Isatis tinctoriaL. # ISATI) has greatly expanded on rangelands in the Intermountain region. Herbicidal and tillage controls are not feasible on rangelands. Better knowledge of the biology of this species could help in the development of biological controls. We examined characteristics that could assist in this effort. Seed viability remained high and relatively stable, but germination decreased over a 10-month period. The seed dispersal pattern of dyers woad was best described by a negative exponential model (log10y = 1.92-0.02x; r2=0.60), where y equals seeds/m2and x = distance from mother plant (cm). The root system of dyers woad is dominated by a taproot with some laterals in the upper 30 cm of the soil profile. Survivorship of experimentally established populations monitored over 2 yr showed constriction at two stages: 1) germination and establishment, and 2) young rosette. The latter stage should be targeted for biological control.

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16

Blyth, J. R. "Cost Accounts for Dyers and Finishers." Journal of the Society of Dyers and Colourists 49, no. 5 (October 22, 2008): 127–32. http://dx.doi.org/10.1111/j.1478-4408.1933.tb01753.x.

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17

Kropp, Bradley R., Steve Albee, Karen M. Flint, Paul Zambino, Les Szabo, and Sherman V. Thomson. "Early Detection of Systemic Rust Infections of Dyers Woad (Isatis tinctoria) Using the Polymerase Chain Reaction." Weed Science 43, no. 3 (September 1995): 467–72. http://dx.doi.org/10.1017/s0043174500081480.

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Rust-specific polymerase chain reaction (PCR) primers selectively amplified ribosomal DNA of a rust fungus from infected dyers woad. PCR enabled DNA of the fungus to be detected in symptomatic plants as well as in asymptomatic parts of diseased plants. The use of PCR enabled early detection of rust infections in dyers woad plants during their first season when they are often asymptomatic Dried plant samples stored at room temperature for several months worked as well as lyophilized material for DNA extraction prior to PCR. The PCR detection method should greatly facilitate further studies on the biology and inoculation of this and other systemic rusts that have potential for use in biocontrol of weeds.

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18

Horobin, Richard W. "Dyes & Fluorochromes as Imaging Agents in Biology and Medicine - New Opportunities for Dyestuff and Textile Chemists." Advanced Materials Research 441 (January 2012): 366–70. http://dx.doi.org/10.4028/www.scientific.net/amr.441.366.

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Dyes and fluorochromes are used in biology and medicine to generate informative microscopic and macroscopic images. This means that the presence, location, biological structure, chemical content and physiological function of cells, tissues and whole creatures can be investigated. A wide range of dyes, both textile and functional, are used in this way. It is suggested that the various groups of stakeholders involved in this approach-end-users in biomedicine; synthesizers, manufacturers & vendors of dyes; and regulators and standardizers-have much to gain by becoming significantly better connected with each other. Broadly speaking, textile dyers use colorants to make socks and shirts and ties more visually attractive, which is not an objective of professional concern to biologists or clinicians. Biomedical applications of colorants are commonly aimed at obtaining information about living systems, using imaging technologies. There are also non-imaging dye applications in which they are used as drugs or analytical reagents, but these are not considered here. Note: below, “dyes” often implies fluorochromes, whilst “biomedicine” is short for biology and medicine.

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19

HAMADA, KUNIHIRO. "Dyers and Colorists; Their Place for Discussion." Sen'i Gakkaishi 70, no. 5 (2014): P—145—P—145. http://dx.doi.org/10.2115/fiber.70.p-145.

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20

Chaplin, C. H., J. S. Mason, and J. Park. "A Yarn Dyers Impressions of ITMA'79." Journal of the Society of Dyers and Colourists 96, no. 3 (October 22, 2008): 103–6. http://dx.doi.org/10.1111/j.1478-4408.1980.tb03514.x.

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21

Theresia Widyastuti. "Uses Of Natural Dyes To Develop Tiga Negeri Batik." Mudra Jurnal Seni Budaya 39, no. 1 (August 8, 2023): 8–21. http://dx.doi.org/10.31091/mudra.v39i1.2504.

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Tiga Negeri batik began to be made in the late 18th century on the north coast of Java island but its dyeing process was made in three cities, namely Lasem, Pekalongan, and Surakarta. The term three refers not only to the number of colors but also to the combination of three cultures behind the style, namely Java, China, and Europe. This field research using qualitative methods aims to explore the possibility of developing Tiga Negeri batik through the use of natural coloring from plants. Data were collected through observation and interviews with batik artisans in Lasem, Pekalongan and Surakarta, as well as batik artisans who are also natural dye activists and who are members of the Indonesian Natural Dyers Association living in Kediri and Jombang. The result is that Tiga Negeri batik with environmentally friendly natural dyes can be achieved despite still having to use a small amount of artificial dyes, especially for the red color. This effort to return to natural dyes is mainly because this type of batik attracts the attention of international consumers in particular, and domestic consumers in general.

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22

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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23

Dwek, J. C. "Dyers and Finishers - Can You Manage to Survive?" Journal of the Society of Dyers and Colourists 97, no. 9 (October 22, 2008): 390–96. http://dx.doi.org/10.1111/j.1478-4408.1981.tb03597.x.

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BYFIELD, JUDITH. "INNOVATION AND CONFLICT: CLOTH DYERS AND THE INTERWAR DEPRESSION IN ABEOKUTA, NIGERIA." Journal of African History 38, no. 1 (March 1997): 77–99. http://dx.doi.org/10.1017/s0021853796006883.

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BY the twentieth century, the southern Yoruba town of Abeokuta was integrated into the international economy both as an exporter of cash crops and an importer of manufactured products. It became one of the primary producing areas of cocoa and kola nuts in western Nigeria. Abeokuta's integration into the international economy had a profound effect on its local textile industry. As weavers gained access to European threads and dyers gained access to European cloth, relations of production were transformed. Both sets of producers became dependent on European trading firms for their raw materials and were thus brought squarely into the nexus of international trade. Dyeing, which was predominantly a women's industry, benefited substantially from this economic relationship. Dyers' access to cloth as well as credit from the European firms allowed them to become autonomous producers of tie-dyed cloth, adire, that was in great demand across Nigeria, the Gold Coast, Senegal and the Belgian Congo.

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25

Smith, Ken J. "Partitioning colour differences into dyers? components: the ?DBH? model." Coloration Technology 123, no. 3 (June 2007): 170–77. http://dx.doi.org/10.1111/j.1478-4408.2007.00075.x.

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Park, J., and J. Shore. "Significance of dye research and development for practical dyers." Coloration Technology 123, no. 4 (August 2007): 209–16. http://dx.doi.org/10.1111/j.1478-4408.2007.00085.x.

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West, Neil E., and Kassim O. Farah. "Effects of Clipping and Sheep Grazing on Dyers Woad." Journal of Range Management 42, no. 1 (January 1989): 5. http://dx.doi.org/10.2307/3899648.

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28

Santo, Mara, Dominique Cardon, Natércia Teixeira, and Paula Nabais. "Yellow Dyes of Historical Importance: A Handful of Weld Yellows from the 18th-Century Recipe Books of French Master Dyers Antoine Janot and Paul Gout." Heritage 6, no. 12 (November 29, 2023): 7466–81. http://dx.doi.org/10.3390/heritage6120391.

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Antoine Janot and Paul Gout were 18th-century master dyers who specialised in the piece-dyeing of fine wool broadcloths manufactured in Languedoc (southern France) for exportation to the Levant. They wrote treatises, similarly entitled Mémoires de Teinture (Memoirs on Dyeing), illustrated with dozens of dyed textile samples. Janot’s is dated 1744, and Gout’s is dated 1763. These books are full of extremely valuable information, which is unique to its time: the books are composed of carefully described recipes for every colour, each originally preceded by a sample swatch. The yellows of both master dyers made from weld (Reseda luteola L.), belonging to recipes described as Jaune (yellow), were reproduced. The influence of the ingredients, in both the mordanting and dyeing baths, was assessed, and the timings for both baths, which in many recipes are not clear, were tested. This provided key knowledge on the technological processes for dyeing with weld from these 18th c. French masters. The resulting reference samples were preliminarily analysed by a multi-analytical approach. Their chromatic specifications, expressed in the CIEL*a*b*, were compared with those in the Mémoires. Moreover, the influence of the recipe on the percentages of the chromophores was assessed by HPLC-DAD. It was found that the bran and tartar in the mordanting bath influence the final obtained colour and that lime is essential to obtain a bright yellow.

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Nisar, Shazia. "Raising awareness in dyers’ community about the safe handling and disposal of dyes and related remedial solutions." Pakistan Journal of Chemistry 8, no. (1-2) (May 10, 2018): 15. http://dx.doi.org/10.15228/2018.v08.i01-2.p03.

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Parimalam, P., M. R. Premalatha, D. S. Padmini, and A. K. Ganguli. "Participatory ergonomics in redesigning a dyeing tub for fabric dyers." Work 43, no. 4 (2012): 453–58. http://dx.doi.org/10.3233/wor-2012-1462.

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SMITH, WATSON. "THE VALUATION OF DYERS‘ AND PRINTERS’ DRUGS AND CHEMICALS, ETC." Journal of the Society of Dyers and Colourists 1, no. 2 (October 22, 2008): 28–37. http://dx.doi.org/10.1111/j.1478-4408.1884.tb00018.x.

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SMITH, WATSON. "THE VALUATION OF DYERS‘ AND PRINTERS DRUGS AND CHEMICALS ETC." Journal of the Society of Dyers and Colourists 1, no. 3 (October 22, 2008): 52–60. http://dx.doi.org/10.1111/j.1478-4408.1885.tb00022.x.

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Waqas, Muhammad, Syed Zameer Ul Hassan, Saqib Siddique, Ali Asghar, Anila Ali, Ali Raza Shafqat, Zafar Javed, Zohaib Iqbal, and Mehwish Hafeez. "Effective reduction clearing parameters involving alternative reducing agent." Journal of the Pakistan Institute of Chemical Engineers 49, no. 1 (May 31, 2021): 51–61. http://dx.doi.org/10.54693/piche.04916.

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Dyeing of polyester is done by using disperse dyes. Some of the disperse dyes remain unfixed during dyeing and create problems in shade and colorfastness properties. Reduction clearing (RC) is a process to remove these unfixed dyes and to enhance colorfastness properties. In the Pakistani textile industry, reduction clearing is being done by using sodium dithionite (Na2S2O4), which has the best results in reducing dyestuff.Â The problem with sodium dithionite is that it is sensitive to air and also creates a lot of environmental issues. Its sensitivity causes inconsistent results of reduction clearing. Different dyers used different processes and recipes of reduction clearing. Thiourea Dioxide (TUD) is a green reducing agent and can be used as a replacement for sodium dithionite. TUD (CH4N2S) is a stable product with a comparable result with sodium dithionite. Interlock knitted fabric is used in this project whose composition has recycled polyester. The fabric was first dyed using black dyestuff and then reduction clearing was done on a lab-scale with different factors (Shade depth, the concentration of TUD, RC temperature). Three colorfastness tests were conducted to evaluate the different levels of each factor i.e. colorfastness to washing, fastness to perspiration, and fastness to water according to standard numbers ISO 105-C06, ISO 105-E04, and ISO 105-E01, respectively. It was observed that shade depth does not affect the results while concentration and RC temperature have a significant effect on the results. Moreover, the effective concentration of TUD was also determined.

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Phipps, Elena. "Woven Brilliance: Approaching Color in Andean Textile Traditions." Textile Museum Journal 47, no. 1 (2020): 29–53. http://dx.doi.org/10.1353/tmj.2020.a932813.

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Abstract: Andean weavers understood the art of making brilliant and shiny textiles that were awe-inspiring in their manifest splendor as they shimmered in the sunlight (fig. 1). They understood how to acquire and maximize the material properties of certain fibers, metals, and feathers and apply them to the surface of textiles, especially during the pre-Columbian era. However, alternative ways in which Andean dyers, spinners, and weavers have worked to produce these characteristic color effects in the clothing especially of the sixteenth–nineteenth centuries, in concert with or possibly in response to colonial Spanish rule, were also achieved through ingenious yet simple methods of their art. They created the subtle but magnificent impact of what can be termed “woven brilliance.” The concept of these color effects may be traced from Aymara and Quechua terms in colonial dictionaries of the sixteenth century, such as llipi (defined as resplendent cloth), along with chimi, lloque , and huateca isi or tornesol-each resulting in color effects created primarily through spinning or weaving. These are some of the ways that the dyers, spinners, and weavers of the Andes creatively engaged in the production of highly charged special textiles whose agency was generated through the subtlety of their materiality and process. This paper examines close up and in detail the physicality of brilliance in the Andean textile traditions.

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Sweeney, M. H., J. Walrath, and Richard J. Waxweiler. "Mortality among retired fur workers. Dyers, dressers (tanners) and service workers." Scandinavian Journal of Work, Environment & Health 11, no. 4 (August 1985): 257–64. http://dx.doi.org/10.5271/sjweh.2222.

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Bowen, H. H., N. Chappell, N. E. Scafe, G. T. Moody, and J. Denton. "The Dyers' Company's Research Medal Report of the Committee of Adjudication." Journal of the Society of Dyers and Colourists 45, no. 7 (October 22, 2008): 219. http://dx.doi.org/10.1111/j.1478-4408.1929.tb01563.x.

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Green, Arthur G., A. G. Perkin, Gerald T. Moody, H. H. Bowen, and N. E. Scafe. "Worshipful Company of Dyers' Research Medal, July 1934 to June 1935." Journal of the Society of Dyers and Colourists 52, no. 6 (October 22, 2008): 218. http://dx.doi.org/10.1111/j.1478-4408.1936.tb01924.x.

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Green, Arthur G., A. G. Perkin, G. T. Moody, H. H. Bowen, and N. E. Soafe. "Worshipful Company of Dyers' Research Medal, July 1935 to June 1936." Journal of the Society of Dyers and Colourists 53, no. 1 (October 22, 2008): 26. http://dx.doi.org/10.1111/j.1478-4408.1937.tb01936.x.

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Cronshaw, C. J. T., H. Levinstein, L. L. Lloyd, A. G. Green, E. H. Rodd, C. M. Whittaker, and H. H. Bowen. "Worshipful Company of Dyers' Research Medal, July 1938 to June 1939." Journal of the Society of Dyers and Colourists 56, no. 2 (October 22, 2008): 67. http://dx.doi.org/10.1111/j.1478-4408.1940.tb02093.x.

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40

Martelli, Matteo. "Greek Alchemists at Work: 'Alchemical Laboratory' in the Greco-Roman Egypt." Nuncius 26, no. 2 (2011): 271–311. http://dx.doi.org/10.1163/182539111x596630.

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AbstractThe paper focuses on the alchemical laboratory of ancient Greco-Egyptian alchemists, by taking into account especially the earliest alchemical texts (both in the Greek and in the Syriac tradition), ascribed to Pseudo-Democritus, Maria the Jewish and Zosimus. The first part analyzes the possible relationships between the workshops of Egyptian craftsmen (first of all, dyers, metals workers and glass workers) and the activity of the alchemists. The second part gives a general overview on the alchemical instruments described in the Corpus alchemicum.

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Abdalla, Alyce. "Employees or Beneficiaries?" Middle East Studies Association Bulletin 34, no. 2 (2000): 184–88. http://dx.doi.org/10.1017/s0026318400040402.

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A look at royal non-governmental organizations in a country where the head of government is in fact a royal, where 80 percent of foreign aid finds its way back to foreign donors, and where it is difficult to determine the difference between ‘beneficiaries’ of income-generating NGO projects and employees working in substandard conditions. The dichotomies here are real, though the lines fine.During the seasonal pressures of Christmas last year, an order was placed in Amman for an unusually big Bani Hamida rug. The design was determined in the office in Amman, including colors labeled in English abbreviations. After the request was brought to Gebal Bani Hamida, the orders for the appropriate colored wool were sent to the dyers. The women there realized that they did not have the exact shade of yellow requested, but amongst the over three-hundred other colors they did have, they found an approximate replacement. However, they could not make the decision to dye the wool on their own. Instead, they contacted the office in Amman, where their question was noted. Some time later, the designer was informed, and sent back the answer that only the exact tint of yellow would do. So the dyers waited for the stock to be refilled, over the timeliness of which they had little control. The office in Amman complained of the slowness of the work, pressing the women as to why they were behind in filling the order.

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Khosroyev, Alexandr L. "Once Again on the Story about Jesus the Dyer." Письменные памятники Востока 19, no. 2 (June 23, 2022): 51–72. http://dx.doi.org/10.55512/wmo106397.

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For a long time, a number of religious stories of Early Christian Apocrypha, including the so-called Infancy Gospels, have been on the periphery of the mainstream evolution of Christianity; yet changing, they sometimes penetrated even into other cultures (e.g., Islam). Among them is a tale about the miracle worked by the child Jesus at the dyers workshop, namely: with one dye he dyed clothes in different colors (as a variant: he made clothes of different colors white). Reviewing all multilingual versions of the story, the essay tentatively attempts to trace its origin.

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Park, K. H., and V. Koncar. "DIFFUSION OF DISPERSE DYES INTO SUPERMICROFIBRES." AUTEX Research Journal 4, no. 1 (March 1, 2004): 45–51. http://dx.doi.org/10.1515/aut-2004-040108.

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Abstract All dyers share the common goal of achieving the correct shade as early as the first dyeing. But the dyeing process is very complex, being characterised by the diffusioncontrolled sorption of dyes that depends on several physicochemical parameters. Moreover, the dyeing properties relating to microfibres and conventional fibres are caused by different properties such as the exposed surface area and the crystallinity index. Wilson and Hill developed equations describing the uptake rate of disperse dyes by a cylindrical fibre model as a function of the diffusion coefficient and the nature of the dyebath. The inverse of Shibusawa’s polynomial approximation of Hill’s and Wilson’s equation is used to compute the diffusion coefficient, which depends on the initial dye concentration, the time and the fibre count at a fixed temperature. In this paper, the sorption isotherms, the diffusion coefficient, the dye concentration evolution into the fibres and the dyeing uptake rate are computed from experimental results for conventional fibres, microfibres and supermicrofibres. The sorption isotherms and the diffusion coefficient evolutions as a function of time, initial dye concentration and temperature for supermicrofibres are discussed by considering the surface area and the diffusional boundary layer’s influence. Important differences in the dyeing properties are observed, depending on the fibre count, which should be useful in the optimisation of the supermicrofibre dyeing process. The aim is to provide a tool for dyeing practitioners to increase dyeing reproducibility and to improve the performance of ‘right-first-time’ production.

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Howard, Ebenezer Kofi, Charles Frimpong, and Raphael Kanyire Seidu. "Risk assessment of attitudes and practices of students and practitioners toward studio dyeing in Ghana." Research Journal of Textile and Apparel 23, no. 3 (September 9, 2019): 189–200. http://dx.doi.org/10.1108/rjta-03-2019-0011.

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Purpose The purpose of this study is to assess the attitudes and practices of students and practitioners in the dyeing studio. Empirical evidence shows that synthetic dyes are the most commonly used dyestuff because of their colour fastness as compared with natural dyes. However, it is proven scientifically that synthetic dyes and their auxiliaries are carcinogenic and allergenic, which pose as health risks to users. Design/methodology/approach The study used analytical observational study design, where observation, questionnaire and interview were the instruments for data collection. Findings A survey conducted at selected dyeing studios in Ghana revealed the excessive use of vat dyes by students and practitioners because of its availability and accessibility on the local market. Adversely, the study found non-use of personal protective equipment by students and practitioners for protection against hazardous effects of dye chemicals. Again, poor studio set up with limited space and lack of proper waste drainage systems at the various dyeing studios results in inappropriate disposal of dyes, leading to environmental pollution. Originality/value Dyeing throughout history has been practiced to colour a fabric or yarn for specific use in the environment, which brings in some revenue. This practice however employs the use of dyes coupled with its auxiliaries, which poses some health problems in the short, medium and long term because of certain attitudes and practices exhibited by students and practitioners in the studio. It is therefore imperative for effective compliance to safety rules and practices by students and practitioners to ensure their safety. It is also critical that educational institutions and practitioners build modern dyeing studios which are spacious, well ventilated and efficient in limiting environmental pollution in compliance with eco-friendly practices. The study further recommends collaboration between Academia, local dyers’ association , Ghana Health Service and the Environmental Protection Agency to organize workshops to ensure best safety practices to save lives and the environment.

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Kuffour, Osei B., Christopher Larbie, Afua K. A. Genfi, and Richard Sedeafor. "The Haematology and Serum Biochemistry of Traditional Textile Dyers in Ntonso, Kumasi were Affected by Exposure to Synthetic Textile Dyes." Journal of Applied Life Sciences International 26, no. 5 (September 25, 2023): 66–73. http://dx.doi.org/10.9734/jalsi/2023/v26i5620.

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Aim: To study the effects of synthetic textile dyes on haematology and serum biochemistry of traditional textile industry practitioners at Ntonso in the Ashanti region of Ghana. Study Design: Case-control study. Place and Duration of Study: The study was carried out at Ntonso in the Ashanti region of Ghana and clinical analyses were carried out at the Clinical Analyses Laboratory at the Department of Biochemistry and Biotechnology, KNUST between October 2018 and February 2019. Methodology: This study was conducted on 50 textile dyeing practitioners who have been using synthetic textile dyes for more than five years and 50 participants in the control group whose daily work does not expose them to any kind of synthetic textile dye. Participants over 70 years or less than 18 years, pregnant women and those with a medical history of kidney and liver diseases were excluded from the study. Haematological parameters such as White Blood Cell (WBC) counts, Red Blood Cell (RBC) counts, Platelet counts, Haemoglobin levels, etc. were measured. Liver function indicators such as Alanine transaminase (ALT), Protein, Aspartate aminotransferase (AST), Alkaline Phosphatase (ALP), Gamma-glutamyl transferase (GGT), Total Bilirubin (TBIL), and kidney function indicators such as Creatinine, urea, Na, K, Cl ion levels were assessed. Lipid profile parameters such as Total Cholesterol, Triglycerides, High-Density Lipoproteins, Low-Density Lipoproteins (LDL), and Very Low-Density Lipoproteins (VLDL) levels were also assessed. Results: There were statistical differences in both groups regarding key haematological and key serum biochemical parameters such as protein, globulin, ALP, GGT, creatinine, chloride, VLDL and Triglyceride. A significant correlation was observed between the metal ions and haematological parameters, biochemical parameters and quantity of dye used. Conclusion: Heavy metals found in synthetic textile dyes altered lipid profile, haematological and biochemical parameters of the dye practitioners.

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Stephenson, Nina. "THE SURFACE DESIGNER'S ART: CONTEMPORARY FABRIC PRINTERS, PAINTERS AND DYERS. Katherine Westphal." Art Documentation: Journal of the Art Libraries Society of North America 13, no. 2 (July 1994): 106. http://dx.doi.org/10.1086/adx.13.2.27948644.

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Cviklová, Helena. "Blue Print Dies from the Workshops of Rožnov Dyers in Museum Collections." Acta musealia 17, no. 1-2 (June 15, 2019): 184–209. http://dx.doi.org/10.62317/amu.2019.010.

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Fandi, Real, Faizah Qurrata Aini, and Zonalia Fitriza. "Analysis of the structure and content of the merdeka curriculum on green chemistry materials." Jurnal Pijar Mipa 18, no. 3 (May 21, 2023): 349–56. http://dx.doi.org/10.29303/jpm.v18i3.4920.

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This research aims to describe the compatibility between the structure and content of Merdeka’s curriculum on green chemistry based on the revised Bloom's Taxonomy, Dave and Dyers' Taxonomy, and chemistry textbooks. This research is descriptive with a qualitative approach with a content structure analysis research design derived from the Model of Educational Reconstruction (MER). The data collection technique was carried out based on a literature study, while the data analysis technique was carried out based on the Milles and Huberman data analysis technique. The instruments used were standard content analysis tables and structural analysis tables. The standard content analysis table was prepared according to the revised Bloom's and Dave and Dyers' taxonomy. The content structure analysis table measures the breadth of the material, guided by the senior high school textbook from the Ministry of Education and Culture, and the depth of the material is guided by the Handbook of Green Chemistry and Technology by James Clark & Duncan Macquarrie. The research results obtained (1) Elements of chemical understanding were following the revised Bloom taxonomy, (2) Elements of process skills only dominated abstract skills, (3) Elements of the Pancasila student profile contained abstract skills and the realm of attitude. Whereas in content analysis, (1) the breadth of material on the learning outcomes of green chemistry is by high school books from the Ministry of Education and Culture, (2) the depth of material contained in high school chemistry textbooks published by the Ministry of Education and Culture has not explained in more detail less in presenting the questions, and some material is was not suitable to be placed for phase E high school based on the Merdeka’s curriculum.

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Zarinebaf-Shahr, Fariba. "The Role of Women in the Urban Economy of Istanbul, 1700–1850." International Labor and Working-Class History 60 (October 2001): 141–52. http://dx.doi.org/10.1017/s0147547901004495.

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This article examines the role of women in manufacturing and the urban economy of Istanbul during the premodern period. It shows that Ottoman women engaged in a variety of economic activities, and invested in the real estate market. They participated in the textile industry of Bursa, Ankara, and Istanbul as weavers, dyers, and embroiderers. Their labor, however, remained marginal to artisanal production through the guilds. Very few women were accepted into the guilds. They were hired by the putting-out merchants to produce secretly at home. Their input to manufacturing increased in the second half of the nineteenth century when the guilds were losing their monopoly over production.

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Feldman, Roger. "Dyeing and the London Dyers’ Company: Membership, Craft, and Knowledge Transmission, 1649–1829." London Journal 39, no. 1 (March 2014): 37–58. http://dx.doi.org/10.1179/0305803413z.00000000039.

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