Studies on conservation science of silk woven textiles

1)荧光植物天然染料的无损鉴定为了寻找一种合适的方法来研究织物的文化特性，对天然染料引起的纺织品表面荧光进行了测定。“Benihana”，“Kihada”和“Suoh”即使在衣服外观几乎脱色的情况下也显示出清晰的荧光光谱。(2)江户时代男式正装分裙分析从黑染杆入手，探讨了织物显著退化的原因。这可能是由于铁和铜作为媒染剂的存在。利用x射线分析和红外光谱技术研究了织物的物理性质。3)天然色素对纺织品防虫害的作用研究了天然染料对纺织品防虫害的作用。实验证明，在羊毛上使用康替尼染料对防止羊毛损伤是有效的。

1) Non-destructive identification of fluorescent plant natural dyestaffs To find a suitable method to investigate the woven cultural properties, surface fluorescence of textiles due to the natural dyestaff was measured. "Benihana", "Kihada", and "Suoh" showed clear fluorescence spectra even when the appearence of clothes was almost decolorated.2) Analysis of the divided skirt of man's formal wear in Edo period The reason for the remarkable degradation of the textile was investigated in connection with the black dyestaff. It might be attributable to the presence of iron and copper as mordant. The X-ray analysis and infra red spectroscopy were used to study physical properties of txtiles.3) Effect of natural pigment on the prevention of textile from the damage done by insects It is investigated whether the natural dyestaffs are useful for the protection of the insect damage or not. The cotinil dyestaff on wool was proved to be useful for the prevention of the damage.