CN113087403A - Forming process for glass substrate etching effect with fingerprint printing resistance, scraping resistance and wear resistance - Google Patents
Forming process for glass substrate etching effect with fingerprint printing resistance, scraping resistance and wear resistance Download PDFInfo
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- CN113087403A CN113087403A CN202110346912.4A CN202110346912A CN113087403A CN 113087403 A CN113087403 A CN 113087403A CN 202110346912 A CN202110346912 A CN 202110346912A CN 113087403 A CN113087403 A CN 113087403A
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- glass substrate
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Abstract
The invention relates to the technical field of glass deep processing, and particularly discloses a forming process for an etching effect of a glass substrate with fingerprint resistance, scratch resistance and wear resistance, which is mainly applied to chemical etching of a back cover of a glass mobile phone, wherein the grains of finger fingerprints are dispersed as much as possible by forming a layer of honeycomb-like granular layer on the surface of the back cover of the glass mobile phone, so that the fingerprint resistance effect is realized; meanwhile, the honeycomb-shaped granular layer has good wear resistance and can be used for a long time without falling off. In addition, the acid in the etching solution adopts organic acid, such as p-toluenesulfonic acid and methanesulfonic acid, and is combined with fluoride salt (ammonium bifluoride and sodium fluoride) to form effective components in the etching solution, the production is stable during frosting, and the waste liquid after frosting is environment-friendly; in addition, the price of the etching solution is lower, the etching process is easier to control, the production yield is high, and the product quality is stable.
Description
Technical Field
The invention relates to the technical field of glass deep processing, in particular to a forming process for an etching effect of a glass substrate with fingerprint resistance, scratch resistance and wear resistance.
Background
At present, more and more mobile phone manufacturers start to convert the material of the back cover of the mobile phone into the glass material. The glass mobile phone back cover improves the signal receiving capacity of a mobile phone, and meanwhile, in the production process, the glass mobile phone back cover is etched by using the chemical etching liquid, so that various patterns can be obtained, and the mobile phone is more attractive and high-grade.
Most of the existing chemical etching solutions only aim at the beautiful treatment of the surface of the back cover of the glass mobile phone, and the problem that the back cover of the glass mobile phone is easy to leave anti-fingerprint marks is not solved. In addition, in the actual use process, the back cover of the glass mobile phone is not wear-resistant, which is not beneficial to the production of equipment manufacturers.
Disclosure of Invention
In order to solve the problems, the invention provides a forming process with anti-fingerprint, anti-scratch and wear-resistant glass substrate etching effects.
The technical scheme adopted by the invention for solving the technical problems is as follows: a forming process for the etching effect of a glass substrate with fingerprint resistance, scratch resistance and wear resistance comprises the following steps:
s1, preparing the etching solution according to the following components in parts by weight: 5-10 parts of ammonium bifluoride, 5-10 parts of sodium fluoride, 10-15 parts of p-toluenesulfonic acid, 10-15 parts of methanesulfonic acid, 2-6 parts of polyoxyethylene lauryl ether, 2-4 parts of sodium polyacrylate, 2-10 parts of EDTA (ethylene diamine tetraacetic acid) and 90-95 parts of water, wherein the ammonium bifluoride and the sodium fluoride are ground and uniformly mixed to form a mixture 1; grinding and uniformly mixing p-toluenesulfonic acid and methanesulfonic acid to form a mixture 2; then uniformly stirring the polyoxyethylene lauryl ether and the sodium polyacrylate to form a mixture 3; finally, heating the water to 50 ℃, adding the mixture 3, the EDTA, the mixture 2 and the mixture 1 into the water while stirring, and then sealing, standing and curing to obtain an etching solution;
s2, cleaning the surface of the glass substrate to be frosted for the first time by using clean water;
s3, drying the glass and protecting the surface of the glass substrate which does not need frosting;
s4, putting the glass substrate into a frosting device, and frosting the surface of the glass substrate for 80 seconds by using the etching solution prepared in the S1;
s5, putting the etched glass substrate in the S4 into a conventional polishing solution for polishing for 7 minutes;
and S6, performing secondary cleaning on the surface of the glass substrate after polishing by using clean water.
The acid in the etching solution is organic acid, such as p-toluenesulfonic acid and methanesulfonic acid, and is combined with fluoride salt (ammonium bifluoride and sodium fluoride) to form effective components in the etching solution, the production is stable during frosting, and waste liquid after frosting is environment-friendly and environment-friendly.
The lauryl polyoxyethylene ether is combined with the sodium polyacrylate and is used as a surfactant in the etching solution, so that the effective components in the etching solution can better react with the surface of the glass substrate.
Preferably, the curing time in S1 is 24h, and stirring is carried out once every 4h during the curing process.
Preferably, the temperature of the etching solution is kept at 28-32 ℃ during the frosting in S4, and the temperature difference of the etching solution is controlled within 3%.
Preferably, after the surface of the glass substrate is frosted by adopting the forming process, the honeycomb-like particle layer is uniformly distributed on the surface of the glass substrate.
The forming process is mainly applied to chemical etching of the back cover of the glass mobile phone, large-scale equipment is adopted to spray the back cover of the glass mobile phone in the actual production process, large-scale mass production can be realized, and the product processing yield is high.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the acid in the etching solution is organic acid, such as p-toluenesulfonic acid and methanesulfonic acid, and is combined with fluoride salt (ammonium bifluoride and sodium fluoride) to form effective components in the etching solution, the production is stable during frosting, and waste liquid after frosting is environment-friendly and environment-friendly; in addition, the price of the etching solution is lower, the etching process is easier to control, the production yield is high, and the product quality is stable.
2. The forming process is mainly applied to chemical etching of the back cover of the glass mobile phone, and the lines of the finger fingerprints are dispersed as much as possible by forming a layer of honeycomb-like particle layer on the surface of the back cover of the glass mobile phone, so that the fingerprint resistant effect is realized; meanwhile, the honeycomb-shaped granular layer has good wear resistance and can be used for a long time without falling off.
Drawings
FIG. 1 is an electron microscope image of the surface of glass of five test batches 1 in accordance with the example of the present invention;
FIG. 2 is an electron microscope image of the glass surface of five test batches 2 in accordance with the example of the present invention;
FIG. 3 is an electron micrograph of the surface of glass from five test batches 3 in accordance with the example of the present invention.
Detailed Description
The following further describes the embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
Example one
The invention relates to a forming process for an etching effect of a glass substrate with fingerprint resistance, scratch resistance and wear resistance, which comprises the following steps:
s1, preparing the etching solution according to the following components in parts by weight: 5-10 parts of ammonium bifluoride, 5-10 parts of sodium fluoride, 10-15 parts of p-toluenesulfonic acid, 10-15 parts of methanesulfonic acid, 2-6 parts of polyoxyethylene lauryl ether, 2-4 parts of sodium polyacrylate, 2-10 parts of EDTA (ethylene diamine tetraacetic acid) and 90-95 parts of water, wherein the ammonium bifluoride and the sodium fluoride are ground and uniformly mixed to form a mixture 1; grinding and uniformly mixing p-toluenesulfonic acid and methanesulfonic acid to form a mixture 2; then uniformly stirring the polyoxyethylene lauryl ether and the sodium polyacrylate to form a mixture 3; finally, heating water to 50 ℃, adding the mixture 3, the EDTA, the mixture 2 and the mixture 1 into the water while stirring (adding another substance after stirring till no precipitate exists), standing and curing for 24 hours, and stirring once every 4 hours to prepare an etching solution;
s2, cleaning the surface of the glass substrate to be frosted for the first time by using clean water;
s3, drying the glass and protecting the surface of the glass substrate which does not need frosting;
s4, putting the glass substrate into a frosting device, frosting the surface of the glass substrate for 80 seconds by using the etching solution prepared in the S1, keeping the temperature of the etching solution at 28-32 ℃, and controlling the temperature difference of the etching solution within 3%;
s5, putting the etched glass substrate in the S4 into a conventional polishing solution for polishing for 7 minutes;
and S6, performing secondary cleaning on the surface of the glass substrate after polishing by using clean water.
After the surface of the glass substrate is frosted by adopting a forming process, the surface of the glass substrate is uniformly distributed with honeycomb-like granular layers. The forming process is mainly applied to chemical etching of the back cover of the glass mobile phone, large-scale equipment is adopted to spray the back cover of the glass mobile phone in the actual production process, large-scale mass production can be realized, and the product processing yield is high.
Example two
The etching solution is prepared from the following components in parts by weight: 7 parts of ammonium bifluoride, 5 parts of sodium fluoride, 10 parts of p-toluenesulfonic acid, 13 parts of methanesulfonic acid, 2 parts of polyoxyethylene lauryl ether, 2 parts of sodium polyacrylate, 10 parts of EDTA (ethylene diamine tetraacetic acid) and 90 parts of water; the temperature of the etching solution is kept at 28 ℃ during frosting, and the temperature difference of the etching solution is controlled within 3%.
The etching solution of the second embodiment and the forming process of the first embodiment are used for carrying out experiments on the glass substrate, and the performance test is carried out on the surface of the glass substrate, so that the following results are obtained:
the surface of the glass substrate has no fingerprint residue, and the thickness of the honeycomb-like particle layer measured by an instrument is 45nm, and the hardness is 5H; thirdly, the dynamic friction coefficient measured by a friction measuring instrument is 0.03, the wear resistance is good, and the dynamic friction coefficient is 1000g/cm2The contact angle of water drop is still maintained after 10000 times of steel wool friction test under pressure>100 degrees; fourthly, the surface energy is 16mJ/m2The drop angle was 110 ° and the drop angle was 65 °.
EXAMPLE III
The etching solution is prepared from the following components in parts by weight: 5 parts of ammonium bifluoride, 10 parts of sodium fluoride, 15 parts of p-toluenesulfonic acid, 10 parts of methanesulfonic acid, 4 parts of polyoxyethylene lauryl ether, 4 parts of sodium polyacrylate, 7 parts of EDTA (ethylene diamine tetraacetic acid) and 93 parts of water; during frosting, the temperature of the etching solution is kept at 32 ℃, and the temperature difference of the etching solution is controlled within 3 percent.
The etching solution of the third embodiment and the forming process of the first embodiment are used for carrying out experiments on the glass substrate, and the performance test is carried out on the surface of the glass substrate, so that the following results are obtained:
firstly, the surface of the glass substrate has no fingerprint residue, and secondly, the thickness of the honeycomb-like granular layer measured by an instrument is 47nm, and the hardness is 6H; thirdly, measuring the movement by a friction measuring instrumentThe friction coefficient is 0.04, the wear resistance is good, and is 1000g/cm2The contact angle of water drop is still maintained after 10000 times of steel wool friction test under pressure>100 degrees; fourthly, the surface energy is 16mJ/m2The drop angle was 115 ° and the drop angle was 67 °.
Example four
The etching solution is prepared from the following components in parts by weight: 10 parts of ammonium bifluoride, 8 parts of sodium fluoride, 11 parts of p-toluenesulfonic acid, 15 parts of methanesulfonic acid, 6 parts of polyoxyethylene lauryl ether, 3 parts of sodium polyacrylate, 2 parts of EDTA (ethylene diamine tetraacetic acid) and 95 parts of water; during frosting, the temperature of the etching solution is kept at 30 ℃, and the temperature difference of the etching solution is controlled within 3 percent.
The etching solution of the fourth embodiment and the forming process of the first embodiment were used to perform experiments on the glass substrate, and the performance test was performed on the surface of the glass substrate, so as to obtain the following results:
firstly, the surface of the glass substrate has no fingerprint residue, and secondly, the thickness of the honeycomb-like granular layer measured by an instrument is 48nm, and the hardness is 6H; thirdly, the dynamic friction coefficient measured by a friction measuring instrument is 0.05, the wear resistance is good, and the dynamic friction coefficient is 1000g/cm2The contact angle of water drop is still maintained after 10000 times of steel wool friction test under pressure>100 degrees; fourthly, the surface energy is 17mJ/m2The water drop angle is 120 degrees, and the oil drop angle is 70 degrees.
EXAMPLE five
In order to verify the effect stability of the forming process, the etching solution of the fourth embodiment and the forming process of the first embodiment are used for carrying out three times of repeated experiments on the surface of the glass substrate, so as to obtain the following test results:
the acid in the etching solution is organic acid, such as p-toluenesulfonic acid and methanesulfonic acid, and is combined with fluoride salt (ammonium bifluoride and sodium fluoride) to form effective components in the etching solution, the production is stable during frosting, and waste liquid after frosting is environment-friendly; in addition, the price of the etching solution is lower, the etching process is easier to control, the production yield is high, and the product quality is stable. According to an electron microscope image, a layer of honeycomb-like particle layer is formed on the surface of the glass substrate after etching to disperse the grains of the finger fingerprint as much as possible, so that the anti-fingerprint effect is realized; meanwhile, the honeycomb-shaped granular layer has good wear resistance and can be used for a long time without falling off.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (4)
1. A forming process for the etching effect of a glass substrate with fingerprint resistance, scratch resistance and wear resistance is characterized by comprising the following steps:
s1, preparing the etching solution according to the following components in parts by weight: 5-10 parts of ammonium bifluoride, 5-10 parts of sodium fluoride, 10-15 parts of p-toluenesulfonic acid, 10-15 parts of methanesulfonic acid, 2-6 parts of polyoxyethylene lauryl ether, 2-4 parts of sodium polyacrylate, 2-10 parts of EDTA (ethylene diamine tetraacetic acid) and 90-95 parts of water, wherein the ammonium bifluoride and the sodium fluoride are ground and uniformly mixed to form a mixture 1; grinding and uniformly mixing p-toluenesulfonic acid and methanesulfonic acid to form a mixture 2; then uniformly stirring the polyoxyethylene lauryl ether and the sodium polyacrylate to form a mixture 3; finally, heating the water to 50 ℃, adding the mixture 3, the EDTA, the mixture 2 and the mixture 1 into the water while stirring, and then standing and curing to obtain the etching solution;
s2, cleaning the surface of the glass substrate to be frosted for the first time by using clean water;
s3, drying the glass and protecting the surface of the glass substrate which does not need frosting;
s4, putting the glass substrate into a frosting device, and frosting the surface of the glass substrate for 80 seconds by using the etching solution prepared in the S1;
s5, putting the etched glass substrate in the S4 into a conventional polishing solution for polishing for 7 minutes;
and S6, performing secondary cleaning on the surface of the glass substrate after polishing by using clean water.
2. The process of claim 1, wherein the glass substrate is formed by etching, and the glass substrate is fingerprint-resistant, scratch-resistant and wear-resistant: in S1, the curing time is 24h, and stirring is carried out once every 4h in the curing process.
3. The process of claim 1, wherein the glass substrate is formed by etching, and the glass substrate is fingerprint-resistant, scratch-resistant and wear-resistant: and (8) keeping the temperature of the etching solution to be 28-32 ℃ during frosting in S4, and controlling the temperature difference of the etching solution to be within 3%.
4. The process for forming an etching effect on a glass substrate with fingerprint resistance, scratch resistance and wear resistance according to any one of claims 1 to 3, wherein: after the surface of the glass substrate is frosted by adopting the forming process, the honeycomb-like granular layer is uniformly distributed on the surface of the glass substrate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115124249A (en) * | 2022-01-20 | 2022-09-30 | 佛山犀马精细化工有限公司 | Glass substrate fluorite-shaped fingerprint-resistant and flash-effect etching forming process |
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