著者
寺田 貴子
出版者
活水女子大学
雑誌
活水論文集 健康生活学部編 (ISSN:18807720)
巻号頁・発行日
vol.54, pp.35-42, 2011-03

Shellfish purple, also known as Tyrian purple or Royal purple, obtained from hypobranchial gland of the Muricidae familly of mollusks, has been used for texile dyeing. Ocenebra inornata(Recluz, 1851), Ouu-youraku-gai in Japanse, belong to the Muricidae family, feed mainly on bivalve mollusks, and causing significant damage to oyster aquaculture worldwide. Under the purpose of this research to clarify the dyeing properties of shellfish purple obtained from O. inornata collected in Hokkaido Japan, the color tests on JIS multifiber test fabrics, colorfastness tests, and HPLC analysis were performed. As the results of experiments, these were found that direct dyeing method gave reddish purple hue on all eight kinds of fibers with excellent washing and sunlight fastness, chemical vat dyeing method gave wide range of hue from reddish purple to purple on a variety of fibers with practical color fastness, and 6.6'-dibromoindigo was detected as the main component of the pigment. Dyeing properties of shellfish purple obtained from O. inornata are similar to that of common Japanese shellfish purple snail Akanishi, Rapana venosa(Valenciennes, 1846). It would be useful to use O. inornata as the source of purple dye.
著者
加藤 寿美子 寺田 貴子 松生 勝
出版者
The Japan Society of Home Economics
雑誌
家政学雑誌 (ISSN:04499069)
巻号頁・発行日
vol.32, no.6, pp.409-418, 1981-07-20 (Released:2010-03-10)
参考文献数
28

Several kinds of starch granules are heated in water at various temperatures. The process is observed mainly by the technique of small-angle light scattering, polarizing microscopy, and amylography. The Hv light scattering pattern becomes smaller with increasing the temperature and finally shows the “speckled” appearance.These results indicate that the increase of the degree of swelling of starch granules with increasing the temperature and an interspherulitic interference generated by the special configuration of starch granules due to the collapse at the higher temperature. The interspherulitic interference gives rise to predictable diffraction phenomena in the Hv scattering pattern due to the coherency of the beam at the higher temperature. Thus, the temperature dependence of the swelling and the collapse are found to be dependent upon a little the kinds of starch. These results are not contradictory of those obtained by the polarizing microscopy and the amylograph for the most part. Incidentally, the technique of light scattering has advantages for investigating the orientation disorder of scattering elements with respect to the radius within the spherulite as well as the collapse of the spherulites, which is not entirely possible by the polarizing microscopy.
著者
寺田 貴子
出版者
活水女子大学
雑誌
活水論文集. 健康生活学部・生活学科編 (ISSN:13482572)
巻号頁・発行日
vol.48, pp.51-62, 2005-03-31

The purple dye from shellfish, also variously known as Tyrian purple, purple of the Ancient, and Royal purple, was produced from the mucus of the hypobranchial gland of various species of marine mollusks. It is the oldest known pigment, the longest lasting, the subject of the first chemical industry, the most expensive and the best known since pre-Roman times in the Mediterranean region. In 1991, for the first time in Japan, shellfish purple was detected on fragments of ancient silk excavated from the Yoshinogari site, a village in Saga prefecture which dates to the Yayoi period (300 B.C.E.-A.D. 300). Since that time 1 have researched the dyeing properties and the history of shellfish purple, both in Japan and abroad. In this paper, the background to this study, the number of species that can be used for producing shellfish purple, the use of shellfish dye and archaeological evidence of shellfish purple are described.