Ancient and Medieval Dyes

DOWNLOAD NOW »

Author: William Ferguson Leggett

Publisher: Pickle Partners Publishing

ISBN: 1789128218

Category: History

Page: 77

View: 2085

William F. Leggett’s classic text, Ancient and Medieval Dyes, is an informative and easy-to-read introduction to the most common animal and vegetable dyes used before the introduction of synthetic chemical dyes. “Trade in dyestuffs began as soon as the sources of one district were recognized as superior to those used in another district, and, ultimately, this led to the elimination of many of the anciently used dyestuffs, so that of the many hundreds of original primitive dyes only a few survived to ancient and medieval times. The most important of these, divided into vegetable, animal, and mineral groups, are discussed in this book.”—Introduction

Vegetable Dyes

Being a Book of Recipes and Other Information Useful to the Dyer

DOWNLOAD NOW »

Author: Ethel M. Mairet

Publisher: Createspace Independent Pub

ISBN: 9781482745047

Category: Crafts & Hobbies

Page: 104

View: 9329

Vegetable Dyes: Being a book of Recipes and other information useful to the Dyer by Ethel M. Mairet. Natural dyes are dyes or colorants derived from plants, invertebrates, or minerals. The majority of natural dyes are vegetable dyes from plant sources -roots, berries, bark, leaves, and wood - and other organic sources such as fungi and lichens. Archaeologists have found evidence of textile dyeing dating back to the Neolithic period. In China, dyeing with plants, barks and insects has been traced back more than 5,000 years. The essential process of dyeing changed little over time. Typically, the dye material is put in a pot of water and then the textiles to be dyed are added to the pot, which is heated and stirred until the color is transferred. Textile fiber may be dyed before spinning ("dyed in the wool"), but most textiles are "yarn-dyed" or "piece-dyed" after weaving. Many natural dyes require the use of chemicals called mordants to bind the dye to the textile fibers; tannin from oak galls, salt, natural alum, vinegar, and ammonia from stale urine were used by early dyers. Many mordants, and some dyes themselves, produce strong odors, and large-scale dyeworks were often isolated in their own districts. Throughout history, people have dyed their textiles using common, locally available materials, but scarce dyestuffs that produced brilliant and permanent colors such as the natural invertebrate dyes, Tyrian purple and crimson kermes, became highly prized luxury items in the ancient and medieval world. Plant-based dyes such as woad (Isatis tinctoria), indigo, saffron, and madder were raised commercially and were important trade goods in the economies of Asia and Europe. Across Asia and Africa, patterned fabrics were produced using resist dyeing techniques to control the absorption of color in piece-dyed cloth. such as cochineal and logwood (Haematoxylum campechianum) were brought to Europe by the Spanish treasure fleets, and the dyestuffs of Europe were carried by colonists to America.

Textual Studies in Ancient and Medieval Geometry

DOWNLOAD NOW »

Author: W.R. Knorr

Publisher: Springer Science & Business Media

ISBN: 9780817633875

Category: Mathematics

Page: 864

View: 8909

For textual studies relating to the ancient mathematical corpus the efforts by the Danish philologist, 1. L. Heiberg (1854-1928), are especially significant. Beginning with his doctoral dissertation, Quaestiones Archimedeae (Copen hagen, 1879), Heiberg produced an astonishing series of editions and critical studies that remain the foundation of scholarship on Greek mathematical 4 science. For comprehensiveness and accuracy, his editions are exemplary. In his textual studies, as also in the prolegomena to his editions, he carefully described the extant evidence, organized the manuscripts into stemmata, and drew out the implications for the state of the text. 5 With regard to his Archimedean work, Heiberg sometimes betrayed signs of the philologist's occupational disease - the tendency to rewrite a text deemed on subjective grounds to be unworthy. 6 But he did so less often than his prominent 7 contemporaries, and not as to detract appreciably from the value of his editions. In examining textual questions bearing on the Archimedean corpus, he attempted to exploit as much as possible evidence from the ancient commentators, and in some instances from the medieval translations. It is here that opportunities abound for new work, extending, and in some instances superseding, Heiberg's findings. For at his time the availability of the medieval materials was limited. In recent years Marshall Clagett has completed a mammoth critical edition of the medieval Latin tradition of Archimedes,8 while the bibliographical instruments for the Arabic tradition are in good order thanks to the work of Fuat Sezgin.

Discoveries: Colors

The Story of Dyes and Pigments

DOWNLOAD NOW »

Author: François Delamare,Bernard Guineau

Publisher: Harry N Abrams Incorporated

ISBN: N.A

Category: Art

Page: 159

View: 2518

Chronicles the history of dyes and pigments and their related industries, discussing colors in the Middle Ages; the explosion of supply and demand in the sixteenth, seventeenth, and eighteenth centuries; and advances in industrial chemistry.

Textile Colorist

DOWNLOAD NOW »

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Dyes and dyeing

Page: N.A

View: 7646

Mounted samples.