CN114230197A - Method for removing ink on glass surface by high-temperature heating - Google Patents
Method for removing ink on glass surface by high-temperature heating Download PDFInfo
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- CN114230197A CN114230197A CN202210048749.8A CN202210048749A CN114230197A CN 114230197 A CN114230197 A CN 114230197A CN 202210048749 A CN202210048749 A CN 202210048749A CN 114230197 A CN114230197 A CN 114230197A
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- glass
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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
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0075—Cleaning of glass
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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
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/007—Other surface treatment of glass not in the form of fibres or filaments by thermal treatment
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention discloses a method for removing ink on the surface of glass by high-temperature heating, which utilizes the characteristic that silk-screen printing ink can be carbonized after being heated at high temperature, simultaneously utilizes the principle of tempered glass homogenization treatment, ensures that the ink on the surface of the glass automatically falls off after being carbonized by continuously heating the glass at high temperature, and finally removes the ink on the surface of the glass by wind power, completely removes the ink on the surface of the glass by a physical method, does not need to be soaked by a chemical cleaning agent, reduces the use and discharge of chemical agents, cannot damage a material part in the removing process, and can ensure that the tempering stress of the cleaned material part meets the use requirement.
Description
Technical Field
The invention relates to the technical field of glass processing, in particular to a method for removing ink on the surface of glass by high-temperature heating.
Background
The touch display screen is an important component of the current intelligent equipment, and the glass display screen has the advantages of high light transmittance, high dielectric constant, high conductivity and the like, and is high in strength and good in durability, so that the glass display screen is widely applied to various intelligent interaction equipment. Silk-screen printing is a common method in glass processing, and due to technical limitation, the probability of errors in the silk-screen printing processing process is very high, and ink traces on glass often need to be cleaned and processed again. The existing ink cleaning method generally uses a chemical cleaning agent to soak glass for cleaning, and the method needs to use a large amount of cleaning agent, causes pollution to the environment and possibly influences the conductive effect of the touch screen. Especially, some glass touch screens applied to vehicle-mounted intelligent equipment have requirements on the strength of glass and the safety of the glass.
Disclosure of Invention
Aiming at the problems that the cleaning method of the ink on the surface of the glass in the prior art mainly utilizes chemical agents to clean, a large amount of cleaning agents are needed to be used, the burden is caused to the environment, and the safety of a glass screen is influenced, the invention provides the method for removing the ink on the surface of the glass by heating the glass at high temperature, so that the ink on the surface can be effectively removed, and the tempering stress of the cleaned product can meet the use requirement.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for removing ink on the surface of glass by high-temperature heating, which comprises the following steps:
s10, placing the glass material to be cleaned on a material rack, and placing a piece of glass on each material placement position of the material rack to ensure that the surface of the glass material with ink stains is fully contacted with air;
s20, heating the glass material piece by using a hot air oven at the heating temperature of 290 ℃ and 310 ℃, and monitoring the surface temperature of the glass material piece by using an infrared temperature detector to enable the surface temperature of the glass material piece to be less than 310 ℃;
s30, heating at constant temperature for 2-3h, and keeping the surface temperature of the glass material piece at 280-300 ℃;
and S40, stopping heating, waiting for the temperature in the hot air oven to be reduced to below 70 ℃, starting the air draft device for ventilation for 2-5min, and then opening the hot air oven to move out of the material rack.
The technical scheme adopted by the invention for solving the technical problem further comprises the following steps:
in the method for removing ink on the surface of glass by high-temperature heating, the surface temperature of the glass material piece in step S30 is controlled at 285-293 ℃.
The method for removing the ink on the glass surface by high-temperature heating has the advantage that the heating time is 2.25-2.75 hours.
In the method for removing the ink on the glass surface by high-temperature heating, the step S40 is followed by the following steps: and further blowing off the carbonized ink dust on the surface of the glass material piece by using a fan.
In the method for removing the ink on the glass surface by high-temperature heating, before the step S10, the following steps are further provided: drying the ink stains on the surface of the glass material part by using an air heater, wherein the air outlet temperature of the air heater is 80-100 ℃.
In the method for removing the ink on the glass surface by high-temperature heating, before the step S20, the following steps are further provided: and drying the printing ink on the surface of the glass material piece by using a hot air oven, wherein the drying temperature is 75-90 ℃, the drying time is 3-6min, and an air draft device of the hot air oven is started to draw out the air in the box body.
The invention has the beneficial effects that: the method for removing the ink on the surface of the glass by high-temperature heating utilizes the characteristic that the silk-screen printing ink can be carbonized after being heated at high temperature, simultaneously utilizes the principle of tempered glass homogenization treatment, ensures that the ink on the surface of the glass automatically falls off after being carbonized by continuously heating the glass at high temperature, finally removes the ink on the surface of the glass by using wind power, completely removes the ink on the surface of the glass by a physical method, does not need to be soaked by a chemical cleaning agent, reduces the use and discharge of chemical agents, cannot damage a material part in the removing process, and can ensure that the tempering stress of the cleaned material part meets the use requirement.
Detailed Description
The present embodiment is a preferred embodiment of the present invention, and other principles and basic structures that are the same as or similar to the present embodiment are within the scope of the present invention.
The method for removing the ink on the surface of the glass by high-temperature heating comprises the following steps:
s10, placing the glass material to be cleaned on a material rack, and placing a piece of glass on each material placement position of the material rack to ensure that the surface of the glass material with ink stains is fully contacted with air;
glass material spare is the glass material spare that is used for electronic equipment in this embodiment, in order to make all ink stains can both be heated evenly and fully react with the air, material rack adopts frame-type material rack in this embodiment, and the frame of material rack contacts with the edge of material spare, supports fixed material spare, and the position that is stained with ink in the middle part of the material spare is not sheltered from, can fully react. Each material part is independently placed in the material part placing position of the material part rack, so that the situation that the material parts are possibly molten in the heating process and are adhered and damaged is avoided. The material part placing position can be arranged along the horizontal direction or the vertical direction according to the size of the area of the material part, and the damage of the material part which is stressed too much in the ink returning process is avoided as much as possible.
S11, drying the ink on the surface of the glass material piece by using a hot air oven, wherein the drying temperature is 75-90 ℃, the drying time is 3-6min, and an air draft device of the hot air oven is started to draw out air in the box body;
because the drying speeds of various inks are different, the drying time of some glass material pieces after silk-screen printing is short, the ink on the surface is not completely dried, and in order to avoid the influence of the undried ink on ink removal in the ink removal process, a hot air oven is used for drying the ink on the surface of the glass material pieces before formal heating, and the dried gas is pumped out.
S20, heating the glass material piece by using a hot air oven at the heating temperature of 290 ℃ and 310 ℃, and monitoring the surface temperature of the glass material piece by using an infrared temperature detector to enable the surface temperature of the glass material piece to be less than 310 ℃;
in order to avoid the change of tempering stress in the glass during the heating process of the glass material piece, the surface temperature of the glass material piece needs to be controlled at 310 ℃ and the time of the temperature of the glass material piece higher than 300 ℃ needs to be shortened as much as possible.
S30, heating at constant temperature for 2-3h, and keeping the surface temperature of the glass material piece at 280-300 ℃;
through heating the glass material piece for a long time, the printing ink on the surface of the glass material piece is carbonized and becomes easy to fall off, and meanwhile, the tempering stress in the glass can be kept.
S40, stopping heating, waiting for the temperature in the hot air oven to be reduced to below 70 ℃, starting an air draft device for ventilation for 2-5min, and then opening the hot air oven to move out of the material rack;
after the heating is finished, the glass material piece needs to be waited for to be cooled, and meanwhile, the carbonized ink powder falling off is uniformly removed through an air exhaust system in the hot air oven, so that the dust pollution caused is reduced as far as possible.
And S41, further blowing off the carbonized ink dust on the surface of the glass material piece by using a fan.
There may be some ink dust left on the final part that does not fall off completely, so it is necessary to check manually and further clean the glass part with a blower.
Further, in order to ensure that the tempering stress of the glass material piece is not affected, the surface temperature of the glass material piece in the step S30 is controlled to be 285-293 ℃, so that the ink can be fully carbonized.
In order to avoid energy waste due to heating for too long time, avoid the production requirements of energy conservation and environmental protection and damage to the glass material piece, the heating time is further controlled to be 3 hours to 2.25-2.75 hours.
In order to save energy and accurately dry the ink on the surface of the glass frit, the step S10 may be preceded by the following steps: drying the ink stains on the surface of the glass material part by using an air heater, wherein the air outlet temperature of the air heater is 80-100 ℃. After the ink on the surface of the specific material piece is dried by the hot air blower, the glass material piece can be directly heated without performing the step S11.
The method for removing the ink on the surface of the glass by high-temperature heating utilizes the characteristic that the silk-screen printing ink can be carbonized after being heated at high temperature, simultaneously utilizes the principle of tempered glass homogenization treatment, ensures that the ink on the surface of the glass automatically falls off after being carbonized by continuously heating the glass at high temperature, finally removes the ink on the surface of the glass by using wind power, completely removes the ink on the surface of the glass by a physical method, does not need to be soaked by a chemical cleaning agent, reduces the use and discharge of chemical agents, cannot damage a material part in the removing process, and can ensure that the tempering stress of the cleaned material part meets the use requirement.
Claims (7)
1. A method for removing ink on the surface of glass by high-temperature heating is characterized by comprising the following steps:
s10, placing the glass material to be cleaned on a material rack, and placing a piece of glass on each material placement position of the material rack to ensure that the surface of the glass material with ink stains is fully contacted with air;
s20, heating the glass material piece by using a hot air oven at the heating temperature of 290 ℃ and 310 ℃, and monitoring the surface temperature of the glass material piece by using an infrared temperature detector to enable the surface temperature of the glass material piece to be less than 310 ℃;
s30, heating at constant temperature for 2-3h, and keeping the surface temperature of the glass material piece at 280-300 ℃;
and S40, stopping heating, waiting for the temperature in the hot air oven to be reduced to below 70 ℃, starting the air draft device for ventilation for 2-5min, and then opening the hot air oven to move out of the material rack.
2. The method of claim 1, wherein the surface temperature of the frit member in step S30 is controlled at 285-293 ℃.
3. The method of claim 1, wherein the constant temperature heating time in step S20 is calculated from the surface temperature of all the glass frit members reaching 280 ℃.
4. The method of claim 3, wherein the heating time is 2.25 to 2.75 hours.
5. The method of claim 1, wherein step S40 is further followed by the steps of: and further blowing off the carbonized ink dust on the surface of the glass material piece by using a fan.
6. The method of claim 1, wherein step S10 is preceded by the steps of: drying the ink stains on the surface of the glass material part by using an air heater, wherein the air outlet temperature of the air heater is 80-100 ℃.
7. The method of claim 1, wherein step S20 is preceded by the steps of: and drying the printing ink on the surface of the glass material piece by using a hot air oven, wherein the drying temperature is 75-90 ℃, the drying time is 3-6min, and an air draft device of the hot air oven is started to draw out the air in the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210048749.8A CN114230197A (en) | 2022-01-17 | 2022-01-17 | Method for removing ink on glass surface by high-temperature heating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210048749.8A CN114230197A (en) | 2022-01-17 | 2022-01-17 | Method for removing ink on glass surface by high-temperature heating |
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| CN114230197A true CN114230197A (en) | 2022-03-25 |
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| CN202210048749.8A Pending CN114230197A (en) | 2022-01-17 | 2022-01-17 | Method for removing ink on glass surface by high-temperature heating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988721A (en) * | 2022-05-11 | 2022-09-02 | 雄华(河源)光学科技有限公司 | Processing technology of easy-to-remove printing ink for mobile phone glass cover plate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876512A (en) * | 2017-10-09 | 2018-04-06 | 江西合力泰科技有限公司 | A kind of environmental protection carbonization deinking process |
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2022
- 2022-01-17 CN CN202210048749.8A patent/CN114230197A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876512A (en) * | 2017-10-09 | 2018-04-06 | 江西合力泰科技有限公司 | A kind of environmental protection carbonization deinking process |
Non-Patent Citations (1)
| Title |
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| 马英等编著: "《汇宝幕墙计算软件用户使用手册》", vol. 1, 西安交通大学出版社, pages: 232 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988721A (en) * | 2022-05-11 | 2022-09-02 | 雄华(河源)光学科技有限公司 | Processing technology of easy-to-remove printing ink for mobile phone glass cover plate |
| CN114988721B (en) * | 2022-05-11 | 2022-12-09 | 雄华(河源)光学科技有限公司 | Processing technology of easy-to-remove printing ink for mobile phone glass cover plate |
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