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Showing 1 to 11 of 11 for “"natural dyes"”.
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Nonlinear optical properties of natural dyes based on optical resonance
… study of optical properties of organic material natural dyes has gained much consideration. The specific functional groups in several natural dyes remain essential for the large nonlinear absorption expressed in terms of nonlinear optical susceptibilities or other mechanism of absorption such as …
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Contrasting epistemologies in the use of natural dyes, Central Highlands of Chiapas
… an ecologically diverse area with a variety of natural resources used by its inhabitants since millenniums before our common era. In the southwest of the country, the ecosystem of the Central Highlands of the state of Chiapas is no exception, where a few textile craftswomen transform various …
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Development of optimal dyeing methods with natural dyes for environmentally friendly hemp textile
… aimed to more fully understand the effects of natural dyes including tea, pomegranate, and myrobalan on hemp fabric. The basic purpose of this study was to develop a natural dyeing process for natural fibers that improved wash fastness. It focused on the formulation for dyeing with natural …
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The identification of natural dyes in pre-Columbian Andean textiles by mass spectrometry.
Thesis. 1977. M.S.--Massachusetts Institute of Technology. Dept. of Chemistry.
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Application of natural dyes in textile industry and the treatment of dye solutions using electrolytic techniques
… The percentage removals for the phenothiazine dyes followed the following decreasing order: (MG ≈ MV) > (DMMB ≈ AA) > (AB ≈ AC ≈ NMB) > TBO > TH. However, the azine, acridine and oxazine dyes showed between 98 to 99% colour removal and the following decreasing order: NB ≈ NR > AO ≈ RS. Strongly …
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Cochineal : a bright red animal dye.
The natural red animal dye cochineal has been in use for at least three thousand years. It was one of the ten most frequently used ancient dyes. Cochineal was used by the Aztec, Mixtec, and Zapotec Indians when Cortez arrived in the New World. It has always been very valuable to the indigenous who …
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Etnobotani tumbuhan pewarna alami batik di Kota Probolinggo Propinsi Jawa Timur
… 3%. ENGLISH: The utilization of plants as a natural dye batik material has an important role for human life especially the batik crafters Probolinggo city. As the times and technological advances people began to leave the cultural heritage. Constraints associated with the use of natural dyes …
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Patterns of Identity: hand block printed and resist-dyed textiles of rural Rajasthan
This thesis sets out to investigate the changing social significance of the hand-block printed and resist-dyed cottons of Rajasthan. Once a vital part of the region’s everyday rural textile and dress traditions, communicating information about its wearers and demonstrating the craftsmanship of its …
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ΗΛΕΚΤΡΟΛΥΤΙΚΗ ΒΑΦΗ ΤΟΥ ΑΛΟΥΜΙΝΙΟΥ ΜΕΣΑ ΑΠΟ ΔΙΑΛΥΜΑΤΑ ΘΕΙΙΚΟΥ ΔΙΣΘΕΝΟΥΣ ΚΑΣΣΙΤΕΡΟΥ (ΒΕΛΤΙΩΣΗ ΤΗΣ ΜΕΘΟΔΟΥ ΚΑΙ ΔΙΕΥΡΥΝΣΗ ΤΩΝ ΧΡΩΜΑΤΙΣΜΩΝ)
ΜΕΛΕΤΗΘΗΚΕ ΑΦΕΝΟΣ ΜΕΝ Η ΒΕΛΤΙΩΣΗ ΤΗΣ ΣΚΕΔΑΣΤΙΚΗΣ ΙΚΑΝΟΤΗΤΑΣ (THROWING POWER) ΚΑΙ ΤΗΣ ΑΝΤΟΧΗΣ ΣΤΗΝ ΟΞΕΙΔΩΣΗ ΤΩΝ ΔΙΑΛΥΜΑΤΩΝ ΠΟΥ ΧΡΗΣΙΜΟΠΟΙΟΥΝΤΑΙ ΚΑΤΑ ΤΗΝ ΗΛΕΚΤΡΟΛΥΤΙΚΗ ΒΑΦΗ ΤΟΥ ΑΛΟΥΜΙΝΙΟΥ, ΑΦΟΥ ΠΡΟΗΓΟΥΜΕΝΩΣ ΠΡΟΗΓΗΘΕΙ ΑΝΟΔΙΚΗ ΟΞΕΙΔΩΣΗ ΤΟΥ ΔΕΙΓΜΑΤΟΣ, ΑΦΕΤΕΡΟΥ ΔΕ Η ΔΙΕΥΡΥΝΣΗ ΤΩΝ ΧΡΩΜΑΤΙΣΜΩΝ. ΟΣΟΝ ΑΦΟΡΑ …