YUAN Junping *,JIN Lili,GUO Lizhun,et al.Discussion of the Application of Anti-Fingerprint Coating Technology on Gold Alloy Surface for Jewelry[J].Plating & Finishing,2022,(3):40-46.[doi:10.3969/j.issn.1001-3849.2022.03.008]
防指纹膜技术在18K金合金表面的应用探讨
- Title:
- Discussion of the Application of Anti-Fingerprint Coating Technology on Gold Alloy Surface for Jewelry
- Keywords:
- jewelry; vacuum evaporation depositing; anti-fingerprint coating; contact angle; coating performance
- 分类号:
- TQ153.12
- 文献标志码:
- A
- 摘要:
- 首饰表面在佩戴使用中常易黏附指纹、油污等,影响其外观效果。本文采用 18K 金合金首饰材料为基底,采用反应磁控溅射工艺在其表面沉积二氧化硅底膜,再用真空蒸镀法沉积有机氟化物防指纹膜。采用 X 射线荧光光谱分析仪检测基材的成色,采用接触角测试仪、橡皮摩擦试验仪、激光共聚焦显微镜、原子力显微镜、测色仪、耐变黄老化试验箱、人工汗液浸泡试验槽等分别检测了膜层的疏水(油)性能、表面形貌及耐摩擦性能、颜色及耐蚀性等。结果表明,在合适的工艺参数下,防指纹膜层的平均水接触角可达 115° ,油接触角可达 110° ,有优良的抗脏污效果和顺滑触感。经摩擦、腐蚀、老化等试验后,膜层的疏水自洁性能依然良好。防指纹膜不会改变首饰贵金属成色,但会对 XRF 检测成色的精度以及首饰外观颜色产生影响,且影响程度与镀膜工艺参数相关。因此,生产中需要从防指纹性能、成色检测保证和外观效果等方面综合权衡来优化镀膜工艺。
- Abstract:
- : Jewelry surface is prone to adhere fingerprint and greasy dirt when it is worn , which diminishes its appearance. In this paper , 18K gold alloy for jewelry was used as the substrate material , and SiO 2 bottom film was deposited on the substrate by reactive magnetron sputtering technology , and anti-fingerprint coating of organic fluoride was further deposited by vacuum evaporation process. The fineness of the base material was tested with X ray fluorescence spectrometer , and the coating ’ s performances , including the hydrophobicity , lipophobicity , topography , abrasion resistance , color and corrosion resistance , were tested with contact angle tester , rubber friction tester , Laser Scanning Confocal Microscope , spectrophotometer , aging resistance test chamber , artificial sweat soaking test chamber , etc. The results show that under the suitable process conditions , the average contact angle of the anti- fingerprint coating for water and oil is no less than 115° and 110° respectively , which shows excellent smudginess resistance and smooth feeling. After the abrasion test , aging test and corrosion test , the coating still keeps good hydrophobicity and self-cleaning property. The anti-fingerprint film does not change the precious metal fineness , but it will interfere with the nondestructive XRF testing result and affect the jewelry appearance color , while the influence degree is related to the coating process parameters. Therefore , to determine the optimized coating process , it is necessary to balance the anti-fingerprint performance , the guarantee of fineness detection and the appearance effect.
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备注/Memo
收稿日期: 2021-04-12 修回日期: 2021-08-27 * 通 信作者 : 袁军平( 1969 —),男, 研究生(博士), 教授级高工, E-mail : yuanjp@gzpyp.edu.cn 基金项目: 广东省高职院校珠宝首饰产教融合创新平台( 2021CJPT001 ), 广州市高等职业教育双师工作室项目(穗教高教[ 2019 ] 15 号)