CN102801838A - Mobile phone key and manufacturing process thereof - Google Patents
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Abstract
本发明公开了一种手机按键，包括：按键本体；遮光涂层，设置于所述按键本体上；字符层，设置在所述按键本体上并位于所述遮光涂层中；透明涂层，设置在所述遮光涂层上；半透明涂层，设置在所述透明涂层上；UV层，设置在所述半透明涂层上；以及该手机按键的制造工艺。在按键本体上除了字符区外均设置有遮光涂层，并且在UV层下设置有半透明涂层，可以使得没有背光源时看不到字符层，有背光源时，光线可以透过字符透射出来，这样便可以看到按键上的字符。
The invention discloses a key for a mobile phone, comprising: a key body; a light-shielding coating disposed on the key body; a character layer disposed on the key body and in the light-shielding coating; a transparent coating disposed on the key body on the light-shielding coating; a translucent coating arranged on the transparent coating; a UV layer arranged on the translucent coating; and the manufacturing process of the mobile phone key. A light-shielding coating is provided on the key body except for the character area, and a translucent coating is provided under the UV layer, so that the character layer cannot be seen when there is no backlight, and the light can pass through the characters when there is a backlight out so that you can see the characters on the keys.
Description
技术领域 technical field
本发明涉及手机领域，具体涉及一种手机按键及其制造工艺。 The invention relates to the field of mobile phones, in particular to a key for a mobile phone and a manufacturing process thereof.
背景技术 Background technique
现有手机按键的结构如图1所示，在按键本体5上设置一底漆层4，在底层漆上设置有中漆层3，在中漆层3上镭雕字符1，然后喷涂一层透明的UV漆2对字符1进行保护，这种制造工艺得到的字符不管按键本体下的背光源是否发光，该按键的字符均是可见的，如果背光源不发光，按键字符也可见，在某些特殊场合我们不需要看到手机按键上的字符，这就期待一种背光源不发光时按键字符不可见的手机按键。 The structure of the existing mobile phone key is as shown in Figure 1. A primer layer 4 is set on the key body 5, and a middle paint layer 3 is arranged on the bottom paint. On the middle paint layer 3, radium carving characters 1 are sprayed one layer The transparent UV paint 2 protects the character 1. The characters obtained by this manufacturing process are visible regardless of whether the backlight under the key body is illuminated. If the backlight is not illuminated, the key characters are also visible. In some special occasions, we don't need to see the characters on the keys of the mobile phone, so we expect a mobile phone key whose characters are not visible when the backlight is not illuminated.
发明内容 Contents of the invention
本发明为解决现有技术中手机按键背光源不发光仍能看到按键字符的问题，从而提供了一种背光源不发光时不能看见按键字符的手机按键及其制造工艺。 The present invention solves the problem in the prior art that key characters can still be seen when the backlight source of the mobile phone key does not emit light, thereby providing a mobile phone key and its manufacturing process where the key character cannot be seen when the back light source is not luminous.
为解决上述技术问题，本发明提供如下技术方案： In order to solve the above technical problems, the present invention provides the following technical solutions:
一种手机按键，包括：按键本体；遮光涂层，设置于所述按键本体上；字符层，设置在所述按键本体上并位于所述遮光涂层中；透明涂层，设置在所述遮光涂层上；半透明涂层，设置在所述透明涂层上；UV层，设置在所述半透明涂层上。 A key for a mobile phone, comprising: a key body; a light-shielding coating disposed on the key body; a character layer disposed on the key body and in the light-shielding coating; a transparent coating disposed on the light-shielding coating on the coating; a translucent coating, disposed on the transparent coating; and a UV layer, disposed on the translucent coating.
本发明还提供一种手机按键的制造工艺，包括以下步骤：步骤一：提供按键本体；步骤二：在所述按键本体上喷涂遮光涂层；步骤三：在所述遮光涂层上镭雕字符，并且字符区的遮光涂层被雕掉露出按键本体；步骤四：在所述遮光涂层上喷涂透明涂层，用以填充镭雕字符形成的凹坑；步骤五：在所述透明涂层上喷涂半透明涂层；步骤六：在所述半透明涂层上喷涂UV保护层。 The present invention also provides a manufacturing process for mobile phone keys, including the following steps: Step 1: providing a key body; Step 2: spraying a light-shielding coating on the key body; Step 3: engraving characters with laser on the light-shielding coating , and the light-shielding coating in the character area is carved off to expose the key body; Step 4: Spray a transparent coating on the light-shielding coating to fill the pits formed by the radium-engraved characters; Step 5: In the transparent coating Spraying a translucent coating on top; Step 6: spraying a UV protection layer on the translucent coating.
与现有技术相比，本发明具有如下有益效果：本发明提供的一种手机按键及其制造工艺，在按键本体上除了字符区外均设置有遮光涂层，并且在UV层下设置有半透明涂层，可以使得没有背光源时看不到字符，有背光源时，光线可以透过字符透射出来，这样便可以看到按键上的字符。 Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a mobile phone key and its manufacturing process, on the key body except for the character area are provided with a light-shielding coating, and under the UV layer is provided with half The transparent coating can make the characters invisible when there is no backlight. When there is a backlight, the light can be transmitted through the characters, so that the characters on the keys can be seen.
附图说明 Description of drawings
图1是现有技术手机按键结构示意图。 FIG. 1 is a structural schematic diagram of a mobile phone button in the prior art.
图2是本发明实施例手机按键结构示意图。 Fig. 2 is a structural schematic diagram of a mobile phone button according to an embodiment of the present invention.
图3是本发明实施例手机按键制造工艺流程图。 Fig. 3 is a flow chart of the manufacturing process of the keypad of the mobile phone according to the embodiment of the present invention.
具体实施方式 Detailed ways
为了使本发明所解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。 In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
图2是本发明实施例手机按键结构示意图；提供了一种手机按键，包括：按键本体11；遮光涂层10，设置于所述按键本体11上；字符层6，设置在所述按键本体上11并位于所述遮光涂层10中；透明涂层9，设置在所述遮光涂层10上；半透明涂层8，设置在所述透明涂层9上；UV层7，设置在所述半透明涂层8上。在按键本体11上除了字符区外均设置有遮光涂层10，并且在UV层7下设置有半透明涂层8，可以使得没有背光源时看不到字符，有背光源时，光线可以透过字符透射出来，这样便可以看到按键上的字符。 Fig. 2 is a structural schematic diagram of a mobile phone key according to an embodiment of the present invention; a mobile phone key is provided, comprising: a key body 11; a light-shielding coating 10 disposed on the key body 11; a character layer 6 disposed on the key body 11 and located in the shading coating 10; the transparent coating 9 is arranged on the shading coating 10; the translucent coating 8 is arranged on the transparent coating 9; the UV layer 7 is arranged on the Translucent coat 8 on. On the key body 11, except the character area, a light-shielding coating 10 is arranged, and a translucent coating 8 is arranged under the UV layer 7, so that characters cannot be seen when there is no backlight, and light can pass through when there is a backlight. through the characters so that the characters on the keys can be seen.
在本实施例中，按键本体11是聚碳酸酯（PC）、聚甲基丙烯酸甲酯（PMMA）、聚对苯二甲酸乙二酯（PET）中的一种或几种，经注塑形成；其中遮光涂层10为遮光效果强的油漆，起到完全遮蔽手机按键背光源所发出光的效果，优选厚度为4~8um；同时在遮光涂层10通过镭雕机雕刻字符，厚度在4～8um；透明涂层9为透明油漆，即为不添加任何颜料的油漆，起填充遮光涂层10因镭雕字符而形成的凹坑的作用，优选厚度为12~22um；透明涂层9为半透的油漆层，要求具有一定的透光率，在膜厚8±1um时透光率为5%-20%，起遮盖字符的作用，厚度为5~15um，该涂层使得当手机背光源不发光时字符是隐藏看不到的，而当因触压按键使背光源亮时能透过光线使字符可见；UV层7为透明UV涂料，厚度为15~25um。 In this embodiment, the key body 11 is one or more of polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), formed by injection molding; Wherein the light-shielding coating 10 is a paint with strong light-shielding effect, which plays the effect of completely covering the light emitted by the backlight of the mobile phone button, and the preferred thickness is 4 ~ 8um; at the same time, engraving characters on the light-shielding coating 10 by a laser engraving machine, the thickness is 4 ~ 8um. 8um; transparent coating 9 is transparent paint, is the paint that does not add any pigment, plays the effect of filling the pit that light-shielding coating 10 forms because of radium engraving character, preferred thickness is 12～22um; Transparent coating 9 is half The transparent paint layer requires a certain light transmittance. When the film thickness is 8±1um, the light transmittance is 5%-20%. It plays the role of covering characters. The thickness is 5~15um. When the light is off, the characters are hidden and cannot be seen, and when the backlight is turned on due to the touch of the button, the characters can be seen through the light; the UV layer 7 is a transparent UV coating with a thickness of 15~25um.
本发明还提供一种手机按键的制造工艺，图3是本发明实施例手机按键制造工艺流程图，包括以下步骤：步骤一：提供按键本体；步骤二：在所述按键本体上喷涂遮光涂层；步骤三：在所述遮光涂层上镭雕字符，并且字符区的遮光涂层被雕掉露出按键本体；步骤四：在所述遮光涂层上喷涂透明涂层，用以填充镭雕字符形成的凹坑；步骤五：在所述透明涂层上喷涂半透明涂层；步骤六：在所述半透明涂层上喷涂UV保护层。在按键本体上除了字符区外均喷涂有遮光涂层，并且在喷涂UV层之前喷涂有半透明涂层，可以使得没有背光源时看不到字符，有背光源时，光线可以透过字符透射出来，这样便可以看到按键上的字符。 The present invention also provides a manufacturing process of a key for a mobile phone. FIG. 3 is a flow chart of a key manufacturing process for a mobile phone according to an embodiment of the present invention, which includes the following steps: Step 1: providing a key body; Step 2: spraying a light-shielding coating on the key body Step 3: Laser engraving characters on the shading coating, and the shading coating in the character area is carved off to expose the button body; Step 4: Spraying a transparent coating on the shading coating to fill the radium engraving characters Formed pits; step five: spraying a translucent coating on the transparent coating; step six: spraying a UV protective layer on the translucent coating. The key body is sprayed with a light-shielding coating except for the character area, and a translucent coating is sprayed before spraying the UV layer, so that the characters cannot be seen when there is no backlight, and the light can be transmitted through the characters when there is a backlight out so that you can see the characters on the keys.
以下以两个实施例详述该手机按键的制造工艺。 The manufacturing process of the mobile phone key is described in detail below with two embodiments.
实施例一： Embodiment one:
步骤一：提供按键本体；采用透明塑胶原料注塑得到按键本体的塑胶注塑件，可采用如聚碳酸酯（PC）、聚甲基丙烯酸甲酯（PMMA）、聚对苯二甲酸乙二酯（PET）的任一种或几种注塑而成，注塑参数根据实际使用的塑胶原料物理性质确定。 Step 1: Provide the button body; the plastic injection molding parts of the button body are obtained by injection molding of transparent plastic raw materials, such as polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET ) of any one or several types of injection molding, and the injection molding parameters are determined according to the physical properties of the plastic raw materials actually used.
在步骤一之后增加步骤A：对按键本体进行超声波清洗去应力处理。对塑胶注塑件进行超声波清洗、烘烤去应力；如PC：采用110℃烘烤120分钟；ABS或者PMMA：采用60℃烘烤60分钟，其他塑胶料注塑件根据性质而定。 Add step A after step 1: perform ultrasonic cleaning and stress-relief treatment on the key body. Ultrasonic cleaning and baking stress relief for plastic injection molded parts; such as PC: bake at 110°C for 120 minutes; ABS or PMMA: bake at 60°C for 60 minutes, other plastic injection molded parts depend on their properties.
步骤二：在所述按键本体上喷涂遮光涂层；选择遮光效果极好的油漆，选择依据为按键本体喷涂油漆膜厚4-8μm后，在距离光照强度1000±200勒克司，距白炽灯管5cm时，眼睛距离该喷遮光涂层的产品30cm处，按键表面眼睛垂直观察，侧面倾斜按键15-30度角观察，要求透过产品看不到背光源，此时认为完全遮光；油漆颜色不限，满足以上条件即可，油漆固化条件70-90℃，烘烤20-60分钟。本实施例优选赐彩黑色油漆，喷涂膜厚4-6μm时完全遮光，油漆固化条件为80度烘烤30分钟。 Step 2: Spray a shading coating on the key body; choose a paint with an excellent shading effect, and the selection basis is that after the key body is sprayed with a paint film thickness of 4-8 μm, the light intensity is 1000±200 lux at a distance from the incandescent tube. When the distance is 5cm, the eyes are 30cm away from the product sprayed with shading coating, and the eyes are observed vertically on the surface of the button, and the side is inclined to observe the button at an angle of 15-30 degrees. It is required that the backlight cannot be seen through the product. At this time, it is considered to be completely shading; the paint color is different. The limit is enough to meet the above conditions. The paint curing condition is 70-90°C and baked for 20-60 minutes. In this embodiment, the color-civilized black paint is preferred. When the spray film thickness is 4-6 μm, the light is completely shielded, and the curing condition of the paint is baked at 80 degrees for 30 minutes.
步骤三：在所述遮光涂层上镭雕字符；选择需要的镭雕字稿，根据镭雕过程中实际的字符效果调整镭雕参数，要求字符区的遮光涂层被雕掉露出按键本体，且字符镭雕无残留、毛刺、烧焦等缺陷，设定好镭雕参数后即可进行镭雕作业，镭雕后的按键需用无尘布蘸98%无水乙醇擦拭清洁。 Step 3: Laser engrave characters on the shading coating; select the required radium engraving manuscript, adjust the laser engraving parameters according to the actual character effect in the radium engraving process, and require the shading coating in the character area to be engraved to expose the button body. And the character laser engraving has no residue, burr, burnt and other defects. After setting the laser engraving parameters, the laser engraving operation can be carried out. After the laser engraving, the keys need to be wiped clean with a dust-free cloth dipped in 98% absolute ethanol.
步骤四：在所述遮光涂层上喷涂透明涂层，用以填充镭雕字符形成的凹坑；选择透明光油，喷涂于遮光涂层上，用以填充镭雕字符形成的凹坑，要求膜厚12-22μm，油漆固化条件70-90℃，烘烤30-90分钟.本实施例优选赐彩透明光油，喷涂膜厚18-20μm，80度烘烤60分钟。 Step 4: Spray a transparent coating on the shading coating to fill the pits formed by the radium-engraved characters; select transparent varnish and spray it on the shading coating to fill the pits formed by the radium-engraved characters. The film thickness is 12-22 μm, the paint curing condition is 70-90°C, and baked for 30-90 minutes. In this embodiment, the color-given transparent varnish is preferred, and the sprayed film thickness is 18-20 μm, and baked at 80°C for 60 minutes.
步骤五：在所述透明涂层上喷涂半透明涂层；选择膜厚8±1um时透光率测试为5%-20%的色漆，油漆颜色不限，满足以上条件即可，膜厚5-15μm，油漆固化条件70-90℃烘烤20-60分钟。本实施例优选在膜厚8±1um时透光率6%-13%的赐彩白色油漆，喷涂膜厚8-10μm，80度烘烤30分钟。 Step 5: Spray a translucent coating on the transparent coating; select a color paint with a light transmittance test of 5%-20% when the film thickness is 8±1um, the color of the paint is not limited, as long as the above conditions are met, the film thickness 5-15μm, the paint curing condition is 70-90℃ and baked for 20-60 minutes. In this embodiment, the white paint with a light transmittance of 6%-13% is preferred when the film thickness is 8±1um, sprayed with a film thickness of 8-10μm, and baked at 80 degrees for 30 minutes.
步骤六：在所述半透明涂层上喷涂UV保护层；选择UV油漆，膜厚15-25μm。本实施例优选赐彩高光UV，喷涂膜厚18-20μm，油漆喷涂后先预烘烤65℃约2-3分钟，然后经800-1200mj/cm2紫外光照射60-80秒固化完全。 Step 6: Spray a UV protective layer on the translucent coating; select UV paint with a film thickness of 15-25 μm. In this embodiment, the color-enhancing high-gloss UV is preferred, and the thickness of the sprayed film is 18-20 μm. After the paint is sprayed, it is pre-baked at 65°C for about 2-3 minutes, and then irradiated with 800-1200mj/cm 2 ultraviolet light for 60-80 seconds to cure completely.
在步骤六之后增加步骤B：将按键冲压为单个的按键；可以通过冲压模具及冲压设备，将整框按键冲压为单个的按键。 Step B is added after step six: punching the buttons into individual buttons; the whole frame of buttons can be punched into individual buttons through a punching die and punching equipment.
最后组装，将单个按键与其他组件贴合组装为完整的按键。 In the final assembly, a single button is attached to other components to form a complete button.
实施例二： Embodiment two:
步骤一：提供按键本体；采用透明塑胶原料注塑得到按键本体的塑胶注塑件，可采用如聚碳酸酯（PC）、聚甲基丙烯酸甲酯（PMMA）、聚对苯二甲酸乙二酯（PET）的任一种或几种注塑而成，注塑参数根据实际使用的塑胶原料物理性质确定。 Step 1: Provide the button body; the plastic injection molding parts of the button body are obtained by injection molding of transparent plastic raw materials, such as polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET ) of any one or several types of injection molding, and the injection molding parameters are determined according to the physical properties of the plastic raw materials actually used.
在步骤一之后增加步骤A：对按键本体进行超声波清洗去应力处理。对塑胶注塑件进行超声波清洗、烘烤去应力；如PC：采用110℃烘烤120分钟；ABS或者PMMA：采用60℃烘烤60分钟，其他塑胶料注塑件根据性质而定。 Add step A after step 1: perform ultrasonic cleaning and stress-relief treatment on the key body. Ultrasonic cleaning and baking stress relief for plastic injection molded parts; such as PC: bake at 110°C for 120 minutes; ABS or PMMA: bake at 60°C for 60 minutes, other plastic injection molded parts depend on their properties.
步骤二：在所述按键本体上喷涂遮光涂层；选择遮光效果极好的油漆，选择依据为按键本体喷涂油漆膜厚4-8μm后，在距离光照强度1000±200勒克司，距白炽灯管5cm时，眼睛距离该遮光涂层的产品30cm处，按键表面眼睛垂直观察，侧面倾斜按键15-30度角观察，要求透过产品看不到背光源，此时认为完全遮光；油漆颜色不限，满足以上条件即可，油漆固化条件70-90℃烘烤20-60分钟。本实施例优选黑色油漆，喷涂膜厚4-5μm时完全遮光，油漆固化条件为90度烘烤30分钟。 Step 2: Spray a shading coating on the key body; choose a paint with an excellent shading effect, and the selection basis is that after the key body is sprayed with a paint film thickness of 4-8 μm, the light intensity is 1000±200 lux at a distance from the incandescent tube. When the distance is 5cm, the eyes are 30cm away from the product with the shading coating, the eyes are observed vertically on the surface of the button, and the side is tilted to observe the button at an angle of 15-30 degrees. It is required that the backlight cannot be seen through the product. At this time, it is considered to be completely shading; the paint color is not limited , to meet the above conditions, paint curing conditions 70-90 ℃ bake 20-60 minutes. In this embodiment, black paint is preferred, and when the sprayed film thickness is 4-5 μm, it is completely shielded from light, and the curing condition of the paint is baked at 90 degrees for 30 minutes.
步骤三：在所述遮光涂层上镭雕字符；选择需要的镭雕字稿，根据镭雕过程中实际的字符效果调整镭雕参数，要求字符区的遮光涂层被雕掉露出按键本体，且字符镭雕无残留、毛刺、烧焦等缺陷，设定好镭雕参数后即可进行镭雕作业，镭雕后的按键需用无尘布蘸98%无水乙醇擦拭清洁。 Step 3: Laser engrave characters on the shading coating; select the required radium engraving manuscript, adjust the laser engraving parameters according to the actual character effect in the radium engraving process, and require the shading coating in the character area to be engraved to expose the button body. And the character laser engraving has no residue, burr, burnt and other defects. After setting the laser engraving parameters, the laser engraving operation can be carried out. After the laser engraving, the keys need to be wiped clean with a dust-free cloth dipped in 98% absolute ethanol.
步骤四：在所述遮光涂层上喷涂透明涂层，用以填充镭雕字符形成的凹坑；选择透明光油，喷涂于遮光涂层上，填充镭雕字符形成的凹坑，要求膜厚12-22μm，油漆固化条件70-90℃烘烤30-90分钟。本实施例优选美丽华透明光油，喷涂膜厚16-18μm，固化条件90度烘烤60分钟。 Step 4: Spray a transparent coating on the light-shielding coating to fill the pits formed by the radium-engraved characters; select transparent varnish and spray it on the light-shielding coating to fill the pits formed by the radium-engraved characters, and the film thickness is required 12-22μm, the paint curing condition is 70-90℃ and baked for 30-90 minutes. In this embodiment, Miramar transparent varnish is preferred, the thickness of the sprayed film is 16-18 μm, and the curing condition is 90 degrees and baked for 60 minutes.
步骤五：在所述透明涂层上喷涂半透明涂层；选择膜厚8±1um时透光率测试为5%-20%的色漆，油漆颜色不限，满足以上条件即可，膜厚5-15μm，油漆固化条件70-90℃烘烤20-60分钟。本实施例优选在膜厚8±1um时透光率8%-15%的美丽华白色油漆，喷涂膜厚10-12μm，固化条件90度烘烤30分钟。 Step 5: Spray a translucent coating on the transparent coating; select a color paint with a light transmittance test of 5%-20% when the film thickness is 8±1um, the color of the paint is not limited, as long as the above conditions are met, the film thickness 5-15μm, the paint curing condition is 70-90℃ and baked for 20-60 minutes. In this embodiment, Miramar white paint with a light transmittance of 8%-15% is preferred when the film thickness is 8±1um, sprayed with a film thickness of 10-12μm, and cured at 90°C for 30 minutes.
步骤六：在所述半透明涂层上喷涂UV保护层；选择UV油漆，膜厚15-25μm。本实施例优选美丽华高光UV漆，喷涂膜厚18-20μm，油漆喷涂后先预烘烤65℃约2-3分钟，然后经800-1200mj/cm2紫外光照射60-80秒固化完全。 Step 6: Spray a UV protective layer on the translucent coating; select UV paint with a film thickness of 15-25 μm. In this embodiment, Miramar high-gloss UV paint is preferred. The thickness of the sprayed film is 18-20 μm. After the paint is sprayed, it is pre-baked at 65°C for about 2-3 minutes, and then cured completely by 800-1200mj/cm 2 ultraviolet light irradiation for 60-80 seconds.
在步骤六之后增加步骤B：将按键冲压为单个的按键；可以通过冲压模具及冲压设备，将整框按键冲压为单个的按键。 Step B is added after step six: punching the buttons into individual buttons; the whole frame of buttons can be punched into individual buttons through a punching die and punching equipment.
最后组装，将单个按键与其他组件贴合组装为完整的按键。 In the final assembly, a single button is attached to other components to form a complete button.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。 The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.
Claims (9)
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