紫外光照射对真丝绸泛黄性的研究

通过对真丝绸在不同时间紫外光照射后的泛黄度、氨基酸含量、红外光谱的分析,得出绸的泛黄度随着照射时间的增加而增加;但增加的速率逐步减小。绸内氨基酸的含量随着泛黄度的增加而变化的趋势大致可分三大类,其中酪氨酸、谷氨酸、天门冬氨酸、苯丙氮酸含量减小最显著。

Research on Silk Yellowing Caused by Ultraviolet Irradiation

Through infrared spectroscopic and electron-microscopic scanning analyses of the yellowing degree and amino acid content of real silks subjected to ultraviolet irradiation in different durations, it is found that the yellowing degree will increase at a gradually declining rate with the time of irradiation, while the decrease of the amino acid content with the increasing yellowing degree depends on the type of the acid. The amino acid decrease may be roughly classified into three levels, among which the decrease of tyrosine, glutamic, asparagine and phenylalamine contents are most prominent.