Environment Effect on Colour of Dyed Pearl and Preliminary Modification of Nano-TiO2
-
摘要: 为了解决化学染色珍珠在实际应用中存在褪色、光泽下降等问题,利用紫外线照射、人工汗液对样品进行强化实验,采用JEY-PS色彩分析仪测试染色珍珠样品在受紫外线照射、汗液作用过程中其颜色和光泽的变化情况。结果表明,紫外线和汗液对染料具有直接作用,玫瑰红色样品在紫外线作用下12h开始发生褪色,橙黄色样品在36h发生褪色;酸性汗液对样品本身具有一定的腐蚀作用,玫瑰红色样品在人工汗液作用下90min开始出现腐蚀现象,橙黄色样品在30min出现腐蚀现象。最后,采用纳米TiO2-聚合协同改性处理工艺对染色珍珠样品进行表面处理,使其抗紫外线褪色能力至少提高3~4倍,抗汗液腐蚀性能至少提高10倍,较好地解决了染色珍珠褪色与光泽下降的问题。Abstract: In order to solve the problems of fading and corrosion of dyed pearls in practical application,strenuous tests of ultraviolet ray irradiation and man-made sweat are carried out. The changes of the colour and luster of the samples are tested by using JEY-PS (China). The results indicate that the ultraviolet rays and man-made sweat have the direct effect on the dye. Rosy red and orange dyed pearl samples begin to fade respectively in 12 h and 36 h by ultraviolet ray irradiation and erode respectively in 90 min and 30 min by man-made sweat. By using Nano-TiO2 modification technology, uvio-resistant property of the dyed pearl samples is 3 or 4 times higher than that of original dyed pearls, and corrosion-resistant property of the dyed samples is 10 times higher than that of original dyed pearls.
-
Keywords:
- dyed pearl /
- Nano-TiO2 modification /
- uvio-resistant /
- corrosion-resistant
-
-
[1] 史凌云,郭守国,杨明月.珍珠染色技术的研究[J].珠宝科技,2003,15(1):58-60. [2] 吴广州,王慧,翁文剑,等.淡水养殖珍珠的化学染色及其对珍珠表面形貌的影响[J].宝石和宝石学杂志,2006,8(2):9-13. [3] S N Batchelor,D Carr,C E Coleman,et al.The photofading mechanism of commercial reactive dyes on cotton[J].Dyes and Pigments,2003,59(3):269-275.
[4] 于新瑞,张淑芬,杨锦宗.有机染料光褪色机理及主要原因[J].感光科学与光化学,2000,18(3):243-253. [5] 宋心远,沈煜如.活性染料的色牢度及其影响因素(二)[J].印染,2006,(12):41-44. [6] 浙江大学.纳米TiO2-聚合协同改性染色珍珠的方法[P].中国专利:200710067112.9,2007. [7] 姚超,张智宏,林西平,等.纳米技术与纳米材料(V)--防晒化妆品中的纳米二氧化钛[J].日用化学工业,1992,33(5):333-336.
计量
- 文章访问数: 33
- HTML全文浏览量: 0
- PDF下载量: 1
下载:
