CN112456810A - Etching preparation process of frosted glass mobile phone rear cover - Google Patents
Etching preparation process of frosted glass mobile phone rear cover Download PDFInfo
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- CN112456810A CN112456810A CN202011522353.XA CN202011522353A CN112456810A CN 112456810 A CN112456810 A CN 112456810A CN 202011522353 A CN202011522353 A CN 202011522353A CN 112456810 A CN112456810 A CN 112456810A
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- mobile phone
- rear cover
- insert
- glass
- soaking
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
Abstract
The invention discloses an etching preparation process of a rear cover of a frosted glass mobile phone, which comprises the following steps: firstly, covering the back surface of the rear cover of the glass mobile phone with acid-resistant ink and baking; cleaning the baked rear cover of the mobile phone by a cleaning machine, inserting the cleaned rear cover into a special insert basket, soaking the whole insert basket into the cured groove filled with the etching solution, slightly shaking the insert basket for corrosion processing, and then cleaning by clear water; soaking and processing the polishing solution; deinking processing; and finally, cleaning the mobile phone rear cover by a glass cleaning machine to obtain the frosted mobile phone rear cover with the gradually-changed haze. The back cover of the glass mobile phone with the back protected by the acid-resistant ink is etched by the etching solution to obtain the chemically etched back cover of the glass mobile phone with high haze, then the back cover of the glass mobile phone is soaked in the polishing solution containing hydrofluoric acid, and the back cover of the glass mobile phone with the effect of gradually changing the haze is obtained by a slow pulling method. The frosted glass mobile phone back cover can form a frosted glass mobile phone back cover with gradually changed fog degree, is good in touch feeling, and does not have residual fingerprints.
Description
Technical Field
The invention relates to the technical field of preparation of a rear cover of a frosted glass mobile phone, in particular to an etching preparation process of the rear cover of the frosted glass mobile phone.
Background
With the popularization of 5G networks and 5G intelligent devices, the metal rear cover ubiquitous in 4G era electronic products is gradually eliminated due to the fact that the metal rear cover can form shielding interference on 5G electromagnetic signals with shorter wavelengths. Rear cover products such as plastic or glass ceramic gradually become the mainstream choice of 5G intelligent equipment. The plastic cover plate is serious in homogenization and easy to fade after being used for a long time, and the use attractiveness is affected. The cover plate made of glass or ceramic and the like has the advantages of no interference to signals, high hardness after tempering, strong scratch resistance and the like, and is popular with a large number of consumers. The glass cover plate with the frosted glass effect has smooth touch feeling, is not easy to leave fingerprints, has high appearance texture and gradually becomes a high-end product of a glass rear cover product. The rear cover of the frosted glass with gradually changed haze can have the texture effect with gradually changed haze, and the effects of gradually changing colors, light transmission and the like can be formed by matching the texture explosion-proof film or the color coating process, so that the cover plate is more novel in style, the aesthetic feeling of the product shell is increased, and the diversified effects of colors, patterns, vision and the like are presented. CN108515462A discloses a method for preparing a frosted glass cover plate with a gradual change effect, which comprises the following steps: s1, sand blasting: manufacturing a frosted layer on the surface of the glass substrate by adopting a sand blasting process, and realizing the gradual change effect of the frosted layer by changing an included angle between the spraying direction of a nozzle and the normal line of the surface of the glass substrate and changing the spraying speed of the nozzle; s2, etching: and etching the glass substrate subjected to sand blasting to reduce the roughness of the surface of the glass substrate. The sand blasting effect of the glass substrate is changed by changing the angle and the spraying speed of the nozzle so as to achieve the gradual change frosting effect of the glass.
Disclosure of Invention
The invention provides an etching preparation process of a rear cover of a frosted glass mobile phone aiming at the defects of the prior art.
The technical scheme adopted by the invention for realizing the purpose is as follows:
an etching preparation process of a rear cover of a frosted glass mobile phone comprises the following steps:
firstly, covering the back of a rear cover of a glass mobile phone with acid-resistant ink and baking;
step two, cleaning the baked rear cover of the mobile phone by a cleaning machine, inserting the cleaned rear cover into a special insert basket, soaking the whole insert basket into the cured groove filled with the etching solution, and slightly shaking the insert basket for reaction for 1 minute;
step three, quickly extracting the blue insert out of the etching solution, rinsing the blue insert in a pure water tank for 20-30 seconds, and then washing the blue insert by pure water;
soaking the washed basket insert in chemical polishing solution, slowly lifting the basket insert in the chemical polishing solution until the whole basket insert is lifted above the liquid level, and quickly soaking the basket insert in a pure water tank for rinsing for 1-2 minutes;
and step five, soaking the rinsed back cover glass in a 5% sodium hydroxide solution at 60 ℃ for 5 minutes for deinking, then soaking in a pure water tank for rinsing for 1-2 minutes, and finally, cleaning in a glass cleaning machine to obtain the frosted mobile phone back cover with the haze gradually changing.
In a further improvement, the composition comprises 1-20% of ammonium bifluoride, 5-15% of sodium phosphate, 1-3% of dimethyldithioamino, 1-10% of polyvinylpyrrolidone, 1-30% of tripotassium phosphate and the balance of solvent by weight.
In a further refinement, the solvent is 40% hydrofluoric acid.
In a further improvement, the polishing solution is one or a mixture of hydrofluoric acid, hydrochloric acid, sulfuric acid or phosphoric acid.
The invention has the beneficial effects that: the glass mobile phone rear cover frosted glass mobile phone back cover has the advantages that the frosted glass mobile phone rear cover can form a frosted effect with gradually changed fog degree, the touch feeling is good, fingerprints are not left, and the glass mobile phone rear cover frosted glass mobile phone back cover can be widely applied to frosted mobile phone rear covers, notebook computers, tablet computers and the like; the invention realizes the uniform haze gradual change effect through the slow-pulling process in the polishing production process, does not need to use complex sand blasting equipment, and can realize batch rapid production by using simple slow-pulling equipment; by adopting the etching solution and the processing method, the rear cover of the frosted glass mobile phone with uniform haze effect can be formed, the rear cover effect of the frosted glass mobile phone with uniform and gradually-changed haze can be realized at low cost, no fingerprint is left on the formed rear cover of the frosted glass mobile phone, the abrasion resistance is good, and the rear cover of the frosted glass mobile phone can be used for a long time without falling off; the etching solution prepared by the method has the advantages of low price, easily controlled etching process, very uniform and gradually-changed haze effect, no need of complex and expensive production equipment, high production yield, stable product quality, low cost and strong product competitiveness.
Detailed Description
The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.
Example 1
The following components are uniformly mixed, 14% of ammonium bifluoride, 11% of sodium phosphate, 2% of dimethyldithioamino, 4% of polyvinylpyrrolidone and 22% of tripotassium phosphate by weight ratio are poured into a plastic container, are uniformly mixed and stirred, then 47% of hydrofluoric acid with the concentration of 40% is added, and are uniformly stirred to obtain the etching solution, and the etching solution can be used after standing and curing for 36 hours.
The process for preparing the frosted glass mobile phone rear cover with the haze gradual change effect by using the etching solution comprises the following steps: firstly, covering and baking the back surface of a rear cover of the mobile phone by acid-resistant ink, cleaning the rear cover of the glass by a cleaning machine, and inserting the rear cover of the glass into a special inserting basket, wherein each blue is 100 pieces, and the distance between every two pieces is 2 cm; soaking the whole blue insert into the cured etching liquid tank, slightly shaking the blue insert for 1 minute, then quickly taking the blue insert out of the etching liquid, rinsing the blue insert in a pure water tank for 30 seconds, washing the blue insert with pure water, and then soaking the blue insert in a chemical polishing liquid, wherein the chemical polishing liquid contains 30% of hydrofluoric acid with the concentration of 55% and 20% of sulfuric acid with the concentration of 49%; slowly lifting the insert blue in the chemical polishing solution at a speed of 5 mm per minute until the whole insert blue is completely lifted above the liquid level; and then, quickly soaking in a pure water tank for rinsing for 1 minute, soaking the rinsed back cover glass in a 5% sodium hydroxide solution at 60 ℃ for 5 minutes for deinking, then soaking in the pure water tank for rinsing for 1 minute, and finally, cleaning in a glass cleaning machine to obtain the frosted mobile phone back cover with gradually changed haze. The optical characteristics are that the transmission haze is 68-27% from top to bottom, the glossiness (when the incident angle is 60 degrees) is 10-27 from top to bottom, and the microscopic image shows that the glass generates an uneven surface, and the surface arithmetic average roughness (Ra) is 0.61-0.47 microns from top to bottom.
Example 2
The etching solution can be obtained by uniformly mixing 17% of ammonium bifluoride, 13% of sodium phosphate, 1% of dimethyldithioamino, 6% of polyvinylpyrrolidone and 27% of tripotassium phosphate by weight, pouring the above components into a plastic container, uniformly mixing and stirring, adding 36% of hydrofluoric acid with the concentration of 40%, uniformly stirring, and standing and curing for 36 hours.
The process for preparing the frosted glass mobile phone rear cover with the haze gradually changing through the etching solution comprises the following steps: firstly, covering and baking the back surface of a rear cover of the mobile phone by acid-resistant ink, cleaning glass by a cleaning machine, and inserting the glass into a special insertion basket, wherein each blue is 100 pieces, and the distance between every two pieces is 2 cm; soaking the whole blue insert into the cured etching liquid tank, slightly shaking the blue insert for 1 minute, then quickly taking the blue insert out of the etching liquid, rinsing the blue insert in a pure water tank for 30 seconds, washing the blue insert with pure water, and then soaking the blue insert in a chemical polishing liquid, wherein the chemical polishing liquid contains 30% of hydrofluoric acid with the concentration of 55% and 20% of sulfuric acid with the concentration of 49%; slowly lifting the insert blue in the chemical polishing solution at a speed of 4 mm per minute until the whole insert blue is completely lifted above the liquid level; and then, quickly soaking in a pure water tank for rinsing for 1 minute, soaking the rinsed back cover glass in a 5% sodium hydroxide solution at 60 ℃ for 5 minutes for deinking, then soaking in the pure water tank for rinsing for 1 minute, and finally, cleaning in a glass cleaning machine to obtain the frosted mobile phone back cover with gradually changed haze. The optical characteristics are that the transmission haze is 76-22% from top to bottom, the glossiness (when the incident angle is 60 degrees) is 9-47 from top to bottom, and the microscopic image shows that the glass generates an uneven surface, and the surface arithmetic average roughness (Ra) is 0.69-0.32 micrometer from top to bottom.
Example 3
The etching solution can be obtained by uniformly mixing the following components, namely 5% of ammonium bifluoride, 15% of sodium phosphate, 1.5% of dimethyldithioamino, 2.5% of polyvinylpyrrolidone and 28% of tripotassium phosphate by weight, pouring the components into a plastic container, uniformly mixing and stirring, then adding 48% of hydrofluoric acid with the concentration of 40% and uniformly stirring, and standing and curing for 36 hours.
The process for preparing the frosted glass mobile phone rear cover with the haze gradual change effect by using the etching solution comprises the following steps: firstly, covering and baking the back surface of a rear cover of the mobile phone by acid-resistant ink, cleaning the rear cover of the glass by a cleaning machine, and inserting the rear cover of the glass into a special inserting basket, wherein each blue is 100 pieces, and the distance between every two pieces is 2 cm; soaking the whole blue insert into the cured etching liquid tank, slightly shaking the blue insert for 1 minute, then quickly taking the blue insert out of the etching liquid, rinsing the blue insert in a pure water tank for 30 seconds, washing the blue insert with pure water, and then soaking the blue insert in a chemical polishing liquid, wherein the chemical polishing liquid contains 30% of hydrofluoric acid with the concentration of 55% and 20% of sulfuric acid with the concentration of 49%; slowly lifting the insert blue in the chemical polishing solution at a speed of 5 mm per minute until the whole insert blue is completely lifted above the liquid level; and then, quickly soaking in a pure water tank for rinsing for 1 minute, soaking the rinsed back cover glass in a 5% sodium hydroxide solution at 60 ℃ for 5 minutes for deinking, then soaking in the pure water tank for rinsing for 1 minute, and finally, cleaning in a glass cleaning machine to obtain the frosted mobile phone back cover with gradually changed haze. The optical characteristics are that the transmission haze is 59-34% from top to bottom, the glossiness (when the incident angle is 60 degrees) is 12-36 from top to bottom, and the microscopic image shows that the glass generates an uneven surface, and the surface arithmetic average roughness (Ra) is 0.55-0.31 micrometer from top to bottom.
The present invention is not limited to the above embodiments, and other etching processes for manufacturing a rear cover of a frosted glass mobile phone, which are obtained by using the same or similar structure, device, process or method as the above embodiments of the present invention, are within the protection scope of the present invention.
Claims (4)
1. An etching preparation process of a rear cover of a frosted glass mobile phone is characterized by comprising the following steps:
firstly, covering the back of a rear cover of a glass mobile phone with acid-resistant ink and baking;
step two, cleaning the baked rear cover of the mobile phone by a cleaning machine, inserting the cleaned rear cover into a special insert basket, soaking the whole insert basket into the cured groove filled with the etching solution, and slightly shaking the insert basket for reaction for 1 minute;
step three, quickly extracting the blue insert out of the etching solution, rinsing the blue insert in a pure water tank for 20-30 seconds, and then washing the blue insert by pure water;
soaking the washed basket insert in chemical polishing solution, slowly lifting the basket insert in the chemical polishing solution until the whole basket insert is lifted above the liquid level, and quickly soaking the basket insert in a pure water tank for rinsing for 1-2 minutes;
and step five, soaking the rinsed back cover glass in a 5% sodium hydroxide solution at 60 ℃ for 5 minutes for deinking, then soaking in a pure water tank for rinsing for 1-2 minutes, and finally, cleaning in a glass cleaning machine to obtain the frosted mobile phone back cover with the haze gradually changing.
2. The etching preparation process of the ground glass mobile phone rear cover according to claim 1, characterized in that: the composition comprises 1-20% of ammonium bifluoride, 5-15% of sodium phosphate, 1-3% of dimethyldithioamino, 1-10% of polyvinylpyrrolidone, 1-30% of tripotassium phosphate and the balance of solvent by weight.
3. The etching preparation process of the ground glass mobile phone rear cover according to claim 2, characterized in that: the solvent is 40% hydrofluoric acid.
4. The etching preparation process of the ground glass mobile phone rear cover according to claim 3, characterized in that: the polishing solution is one or a mixture of hydrofluoric acid, hydrochloric acid, sulfuric acid or phosphoric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011522353.XA CN112456810A (en) | 2020-12-22 | 2020-12-22 | Etching preparation process of frosted glass mobile phone rear cover |
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| CN202011522353.XA CN112456810A (en) | 2020-12-22 | 2020-12-22 | Etching preparation process of frosted glass mobile phone rear cover |
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| CN112456810A true CN112456810A (en) | 2021-03-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307500A (en) * | 2021-04-22 | 2021-08-27 | 安徽金龙浩光电科技有限公司 | Glass cover plate with gradient AG effect and preparation method thereof |
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2020
- 2020-12-22 CN CN202011522353.XA patent/CN112456810A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307500A (en) * | 2021-04-22 | 2021-08-27 | 安徽金龙浩光电科技有限公司 | Glass cover plate with gradient AG effect and preparation method thereof |
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