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CN103184411A - 镀膜件及镀膜件的制作方法 - Google Patents

镀膜件及镀膜件的制作方法 Download PDF

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CN103184411A
CN103184411A CN2011104506610A CN201110450661A CN103184411A CN 103184411 A CN103184411 A CN 103184411A CN 2011104506610 A CN2011104506610 A CN 2011104506610A CN 201110450661 A CN201110450661 A CN 201110450661A CN 103184411 A CN103184411 A CN 103184411A
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杜琪健
姜传华
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Shenzhen Futaihong Precision Industry Co Ltd
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Priority to TW101101031A priority patent/TWI573884B/zh
Priority to US13/451,075 priority patent/US20130171446A1/en
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Abstract

本发明提供一种镀膜件，其包括一透明基材，在该透明基材上依次形成有底漆层、金属层和面漆层，所述底漆层为丙烯酸，该丙烯酸中添加质量百分比为35%～40%的白色色浆或质量百分比为2%～4%黑色色浆，所述金属层以NCVM的方法形成，所述面漆层为油墨。本发明还提供一种所述镀膜件的制作方法。所述镀膜件具有遮光和良好的外观效果。

Description

镀膜件及镀膜件的制作方法
技术领域
本发明涉及一种镀膜件及镀膜件的制作方法，尤其涉及一种遮光效果好且具有良好外观的镀膜件及其制作方法。
背景技术
NCVM的主要特征是结合了传统真空镀膜技术的特性，采用新的镀膜技术、新的材料，做出不同于普通真空电镀的金属外观效果，起到美化工件表面之功用。通过NCVM对按键、导光柱等产品的表面处理，要求字体部分和导光面的部分能够无遮蔽，使光线顺利通过，保持高通过率，字体以外部分或导光面则不要求光线通过，但同时要保证塑胶面有高金属质感又不影响电磁波信号的传播，保持信号畅通，但NCVM在遮光效果方面受到很大的限制，很难到达完全的遮光效果。
发明内容
鉴于此，本发明提供一种遮光效果好且具有良好外观的镀膜件。
另，还有必要提供一所述镀膜件的制作方法。
一种镀膜件，其包括一透明基材，在该透明基材上依次形成有底漆层、金属层和面漆层，所述底漆层为丙烯酸，该丙烯酸中添加质量百分比为35%～40%的二氧化钛白色色浆或质量百分比为2%～4%炭黑或氧化铁的黑色色浆，所述金属层以真空蒸镀的方法形成，所述面漆层为丙烯酸。
一种制造镀膜件的方法。
提供一透明基材；
在该透明基材一表面上形成底漆层；
所述底漆层为丙烯酸，该丙烯酸中添加质量百分比为35%～40%的二氧化钛白色色浆或质量百分比为2%～4%炭黑或氧化铁的黑色色浆；
通过真空蒸镀形成金属层。
在金属层上喷涂面漆层，该面漆层为丙烯酸。
相较于现有技术，本发明所述镀膜件可以在保留原NCVM工艺基本步骤和参数，通过底漆层内添加一定比例的色浆实现了保持电磁波信号的畅通的遮光效果好且具有良好外观的镀膜件。
附图说明
图1是本发明一较佳实施方式镀膜件的剖视放大示意图。
主要元件符号说明
镀膜件 10
透明基材 11
底漆层 13
金属层 15
面漆层 17
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
请参阅图1，本发明的镀膜件10包括一透明基材11，在该透明基材11上形成底漆层13，在该底漆层13上形成金属层15，该金属层15以真空蒸镀的方法形成，最后，在该金属层15形成面漆层17。
该透明基材11由透明的材料制成，如透明的塑料材料，本较佳实施例中选取的塑料材料为透明的聚碳酸酯（Polycarbonate，PC）或聚甲基丙烯酸甲酯（Polymethyl Methacrylate，PMMA）。
所述底漆层13主要成分为丙烯酸，底漆层13的厚度约为10-20μm。该底漆层13中添加有白色色浆，其质量百分比为35%～40%。该白色色浆主要成份是二氧化钛颜料，起作用是配合镀膜层遮蔽非导光区域的光线通过。该底漆层13中或添加有黑色色浆，其质量百分比为2%～4%，该黑色色浆主要成份是氧化铁或炭黑颜料，起作用也是配合镀膜层遮蔽非导光区域的光线通过。。
该金属层15通过真空蒸镀形成，膜层厚度200-500nm，既满足金属质感高光外观，又能满足RF检测，不干扰电磁波信号。
最后，喷涂面漆层17，所述面漆层17主要成分为丙烯酸，厚度约为10-15μm，经过流平，60oC烘烤5min，再经过紫外光固化。
本发明一较佳实施方式的镀膜件10的制作方法，其包括如下步骤：
提供一基材11。基材11由透明或半透明的材料制成，如透明的塑料材料，本较佳实施例中选取的塑料材料为透明的聚碳酸酯（Polycarbonate，PC）或聚甲基丙烯酸甲酯（Polymethyl Methacrylate，PMMA）。
前处理：基材11放入无水乙醇中进行超声波清洗，以去除基材11表面的油污渍，清洗时间为5～10min。
请参阅图1，镀膜件10包括一透明基材11、在该透明基材11上一面底漆层13，所述底漆层13主要成分为丙烯酸，厚度约为10-20μm，并在底漆层中添加二氧化钛的白色色5%～40%或炭黑或氧化铁的黑色色浆质量百分比为2%～4%，经过流平，70oC烘烤10min，再经过紫外光固化步骤完成。
金属层15，通过真空蒸发镀膜形成，其步骤参数为：镀膜真空度3×10－8 Pa，采用99.9%的铝丝其直径1.0mm，镀料长度8-10cm，选择双电极真空蒸发镀膜，公转和自转比为7：6，公转15PRM，镀膜电压7-9V，镀膜电流4000-5000A，蒸发时间7分钟。该金属层15的厚度200-500nm，经过以上蒸镀制程处理后的镀膜件10，既满足金属质感高光外观，又能满足RF检测，达到不干扰电磁波信号的目的。
喷涂面漆层17，所述面漆层17主要成分为丙烯酸，厚度约为10-15μm，经过流平，60oC烘烤5min，再经过紫外光固化步骤完成。
本发明所述镀膜件10可以在保留原NCVM工艺基本步骤和参数的前提下，又实现了保持电磁波信号的畅通的遮光效果好且具有良好外观的镀膜件。
实验测试
1.附着力测试。3M胶带粘3分钟沿45度方向快速拉起，无脱落。
2. 目视样品无明显色差。
3.光泽度要求20oC下并达到100GΜ以上，在1W的LED白光光源照射下目视无投射通过。

Claims (9)

1.一种镀膜件，其包括一透明基材，在该透明基材上依次形成有底漆层、金属层和面漆层，其特征在于：所述底漆层为丙烯酸漆层，该丙烯酸中添加有质量百分比为35%～40%的二氧化钛的白色色浆或质量百分比为2%～4%的炭黑或氧化铁的黑色色浆，所述面漆层为丙烯酸漆层。
2.如权利要求1所述的镀膜件，其特征在于：所述透明基材的材料为透明聚碳酸酯或聚甲基丙烯酸甲酯。
3.如权利要求1所述的镀膜件，其特征在于：所述底漆层厚度为10-20μm。
4.如权利要求1所述的镀膜件，其特征在于：所述金属层为铝、铬或银层，其厚度为0.5～0.8μm。
5.如权利要求1所述的镀膜件，其特征在于：所述面漆层的厚度为10-15μm。
6.一种镀膜件的制作方法，其包括如下步骤：
提供一透明基材；
在该透明基材一表面上形成底漆层；
所述底漆层为丙烯酸，该丙烯酸中添加质量百分比为35%～40%的二氧化钛的白色色浆或质量百分比为2%～4%炭黑或氧化铁的黑色色浆；
通过真空蒸镀形成金属层；
在金属层上喷涂面漆层，该面漆层为丙烯酸。
7.如权利要求6所述的镀膜件的制作方法，其特征在于：所述底漆层喷涂步骤参数为：70oC烘烤10min，再经过紫外光固化完成。
8.如权利要求6所述的镀膜件的制作方法，其特征在于：所述蒸镀金属层的步骤参数为，镀膜真空度3×10－8 Pa，采用99.9%的铝丝其直径1.0mm，镀料长度8-10cm，选择双电极真空蒸发镀膜，公转和自转比为7：6，公转15PRM，镀膜电压7-9V，镀膜电流4000-5000A，蒸发时间7分钟。
9.如权利要求8所述的镀膜件的制作方法，其特征在于：所述金属层厚度为200-500nm。
CN2011104506610A 2011-12-29 2011-12-29 镀膜件及镀膜件的制作方法 Pending CN103184411A (zh)

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TW101101031A TWI573884B (zh) 2011-12-29 2012-01-11 鍍膜件及鍍膜件的製作方法
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CN106362920A (zh) * 2016-08-29 2017-02-01 晋江国盛新材料科技有限公司 一种eva鞋材的表面修饰工艺
CN109280888A (zh) * 2018-09-06 2019-01-29 维沃移动通信有限公司 壳体制备方法及壳体
CN111556676A (zh) * 2020-04-02 2020-08-18 维沃移动通信(重庆)有限公司 壳体及其制备方法和电子设备
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CN112871603A (zh) * 2021-01-08 2021-06-01 彭卫娟 一种金属漆涂层及其制备方法
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