宝石和宝石学杂志
寶石和寶石學雜誌
보석화보석학잡지
Journal of Gems & gemmology
2011年
3期
12-17
,共6页
海水珍珠%染色%珍珠结构%珍珠光泽
海水珍珠%染色%珍珠結構%珍珠光澤
해수진주%염색%진주결구%진주광택
seawater cultured pearl%dyeing%pearl structure%pearl luster
为了研究染色对海水珍珠结构和表面光泽的影响以及染料的主要渗透途径与结合部位,通过对比染色实验、扫描电子显微镜和宝石显微镜,对染色前、后的海水珍珠样品表面和内部特征进行了观察与分析,采用显微分光光度-偏光显微镜测量染色前、后海水珍珠样品的表面反射率变化以及运用红外光谱测定染色前、后海水珍珠样品的成分。结果表明,在染色过程中,染料是通过海水珍珠珠孔处珠核和珍珠层间的有机质空隙以及漂白造成海水珍珠表面有机质疏松结构而渗透到珍珠的内部,主要与海水珍珠内的有机成分作用而使其着色。染色后海水珍珠样品的砖墙型层状结构未改变;染料对海水珍珠表面的有机质疏松结构具有填充作用,增强了其表面的镜面效应,使光泽度增强。
為瞭研究染色對海水珍珠結構和錶麵光澤的影響以及染料的主要滲透途徑與結閤部位,通過對比染色實驗、掃描電子顯微鏡和寶石顯微鏡,對染色前、後的海水珍珠樣品錶麵和內部特徵進行瞭觀察與分析,採用顯微分光光度-偏光顯微鏡測量染色前、後海水珍珠樣品的錶麵反射率變化以及運用紅外光譜測定染色前、後海水珍珠樣品的成分。結果錶明,在染色過程中,染料是通過海水珍珠珠孔處珠覈和珍珠層間的有機質空隙以及漂白造成海水珍珠錶麵有機質疏鬆結構而滲透到珍珠的內部,主要與海水珍珠內的有機成分作用而使其著色。染色後海水珍珠樣品的磚牆型層狀結構未改變;染料對海水珍珠錶麵的有機質疏鬆結構具有填充作用,增彊瞭其錶麵的鏡麵效應,使光澤度增彊。
위료연구염색대해수진주결구화표면광택적영향이급염료적주요삼투도경여결합부위,통과대비염색실험、소묘전자현미경화보석현미경,대염색전、후적해수진주양품표면화내부특정진행료관찰여분석,채용현미분광광도-편광현미경측량염색전、후해수진주양품적표면반사솔변화이급운용홍외광보측정염색전、후해수진주양품적성분。결과표명,재염색과정중,염료시통과해수진주주공처주핵화진주층간적유궤질공극이급표백조성해수진주표면유궤질소송결구이삼투도진주적내부,주요여해수진주내적유궤성분작용이사기착색。염색후해수진주양품적전장형층상결구미개변;염료대해수진주표면적유궤질소송결구구유전충작용,증강료기표면적경면효응,사광택도증강。
To study the influence of dyeing on the structure and luster of seawater cultured pearls and to explore the penetration ways of dye liquor in the dyeing process of seawater cultured pearls,the present paper observes and analyzes the surface structure and internal characteristics of the seawater cultured samples before and after dyeing by using the dyeing experiment,scanning electron microscopy and gemmological microscope,measures the changes in surface reflectivity of the samples before and after dyeing by microscopic spectrophotometer-polarizing microscope,and identifies the components of the samples before and after dyeing by infrared spectroscopy.The results show that the dyes penetrate into the interior of pearls during the dyeing process mainly through the gap between the bead nucleus and the nacreous layers and the loose organic parts of the pearl surface,and then the dyes interact with the organic matter of the pearls.The brick-and-mortar structure of the pearl samples after dyeing remains unchanged.The dye particles combined with the organic matter between the crystal layers of pearl surface could fill in the gap caused by bleaching,thus the mirror effectiveness of pearl surface could be enhanced,and pearl surface luster could be improved after dyeing.