CN111842067A - Touch screen dispensing and curing process - Google Patents
Touch screen dispensing and curing process Download PDFInfo
- Publication number
- CN111842067A CN111842067A CN202010647375.2A CN202010647375A CN111842067A CN 111842067 A CN111842067 A CN 111842067A CN 202010647375 A CN202010647375 A CN 202010647375A CN 111842067 A CN111842067 A CN 111842067A
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- curing
- touch screen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0486—Operating the coating or treatment in a controlled atmosphere
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a touch screen dispensing and curing process, which belongs to the technical field of touch screen preparation and comprises a primary curing stage, an inspection stage and a secondary curing stage; firstly, low-power curing is adopted in a primary curing stage, the power is 80-90W/cm, and the curing time is 15-20 s; and in the inspection stage, the inspection bench is adopted to perform multiple irradiation to detect the humidity of the glue on the touch screen, and the inspection bench irradiates infrared rays for 3-5 s. The invention divides the curing process into three stages, can strictly control time and curing power, and can effectively control cost; the glue in the touch screen is primarily cured, so that the glue in the touch screen can be prevented from foaming; the accuracy of detecting the humidity of the glue on the touch screen can be guaranteed by adding three times of sampling in the inspection stage; the secondary curing is adopted and the nitrogen-containing steam is introduced in the curing stage, so that the interference of impurity gas in the air to the curing can be reduced, and the cracking of the touch screen caused by the too fast curing in the curing process can be avoided.
Description
Technical Field
The invention relates to a curing process, in particular to a touch screen dispensing and curing process, and belongs to the technical field of touch screen preparation.
Background
Dispensing and curing are important steps in the preparation process of the mobile phone touch screen, and the traditional curing treatment has no specification for distinguishing the temperature and the time of a stage, so that the process period is prolonged, the cost is increased, and cracks are easy to appear.
Disclosure of Invention
The invention mainly aims to solve the defects of the prior art and provides a touch screen dispensing and curing process.
The purpose of the invention can be achieved by adopting the following technical scheme:
a touch screen dispensing and curing process comprises a primary curing stage, an inspection stage and a secondary curing stage; firstly, low-power curing is adopted in a primary curing stage, the power is 80-90W/cm, and the curing time is 15-20 s; in the inspection stage, detecting the humidity of glue on the touch screen by adopting multiple irradiation of an inspection bench, and irradiating the inspection bench with infrared rays for 3-5 s; and in the secondary curing stage, introducing nitrogen-containing steam, setting the curing power to be 90-120W/cm, and setting the curing time to be 5-8 s.
Preferably, the primary curing stage comprises the steps of:
step 1: starting a UV curing machine, wherein the power is 80-85W/cm, and the curing time is 5-10 s;
step 2: starting a UV curing machine, wherein the power is 85-88W/cm, and the curing time is 5-8 s;
And step 3: and starting the UV curing machine, wherein the power is 88-90W/cm, and the curing time is 5-6 s.
Preferably, the verification phase comprises the steps of:
step 1: starting an inspection table to irradiate for the first time to detect the humidity of glue on the touch screen, and irradiating the inspection table with infrared rays for 1-2 seconds;
step 2: starting the inspection bench to irradiate for the second time to detect the humidity of the glue on the touch screen, and irradiating the inspection bench with infrared rays for 2-3 seconds;
and step 3: starting an inspection table to irradiate for multiple times to detect the humidity of glue on the touch screen, and irradiating the inspection table with infrared rays for 3-5 seconds;
and 4, step 4: and combining the three detection results, and taking the average value of the three detection results as the glue humidity in the touch screen.
Preferably, the secondary curing stage comprises the steps of:
step 1: introducing nitrogen-containing steam, setting the curing power to be 90-100W/cm, and setting the curing time to be 5-6 s;
step 2: introducing nitrogen-containing steam, setting the curing power to be 100-110W/cm, and setting the curing time to be 1-3 s;
and step 3: introducing nitrogen-containing steam, setting the curing power to be 110-120W/cm, and setting the curing time to be 1-2 s.
Preferably, in the primary curing stage, before the touch screen enters the UV curing machine, the touch screen is dried by a fan, the temperature blown out by the fan is 10-20 ℃, and the drying time is 10-15 s.
Preferably, the device used in the inspection stage is an infrared moisture meter.
Preferably, nitrogen-containing steam is introduced in the secondary curing stage, and the mixing ratio of the steam to the nitrogen is 1: 5.
preferably, the introduction rate of the nitrogen-containing steam is 1.5-1.8L/h.
Preferably, the touch screen is placed on a conveyor belt for transportation, the conveying speed of the conveyor belt is 5-10 m/s, and the UV curing machine is installed on the conveyor belt.
The invention has the beneficial technical effects that: according to the touch screen dispensing and curing process, the touch screen dispensing and curing process provided by the invention has the advantages that the curing process is divided into three stages, the time and the curing power can be strictly controlled, and the cost can be effectively controlled; the glue in the touch screen is primarily cured, so that the glue in the touch screen can be prevented from foaming; the accuracy of detecting the humidity of the glue on the touch screen can be guaranteed by adding three times of sampling in the inspection stage; the secondary curing is adopted and the nitrogen-containing steam is introduced in the curing stage, so that the interference of impurity gas in the air to the curing can be reduced, and the cracking of the touch screen caused by the too fast curing in the curing process can be avoided.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail with reference to the following examples, but the embodiments of the present invention are not limited thereto.
The touch screen dispensing and curing process provided by the embodiment comprises a primary curing stage, an inspection stage and a secondary curing stage; firstly, low-power curing is adopted in a primary curing stage, the power is 80-90W/cm, and the curing time is 15-20 s; in the inspection stage, detecting the humidity of glue on the touch screen by adopting multiple irradiation of an inspection bench, and irradiating the inspection bench with infrared rays for 3-5 s; and in the secondary curing stage, introducing nitrogen-containing steam, setting the curing power to be 90-120W/cm, and setting the curing time to be 5-8 s.
The primary curing stage comprises the following steps: step 1: starting a UV curing machine, wherein the power is 80-85W/cm, and the curing time is 5-10 s; step 2: starting a UV curing machine, wherein the power is 85-88W/cm, and the curing time is 5-8 s; and step 3: and starting the UV curing machine, wherein the power is 88-90W/cm, and the curing time is 5-6 s.
The inspection phase comprises the following steps: step 1: starting an inspection table to irradiate for the first time to detect the humidity of glue on the touch screen, and irradiating the inspection table with infrared rays for 1-2 seconds; step 2: starting the inspection bench to irradiate for the second time to detect the humidity of the glue on the touch screen, and irradiating the inspection bench with infrared rays for 2-3 seconds; and step 3: starting an inspection table to irradiate for multiple times to detect the humidity of glue on the touch screen, and irradiating the inspection table with infrared rays for 3-5 seconds; and 4, step 4: and combining the three detection results, and taking the average value of the three detection results as the glue humidity in the touch screen.
The secondary curing stage comprises the following steps: step 1: introducing nitrogen-containing steam, setting the curing power to be 90-100W/cm, and setting the curing time to be 5-6 s; step 2: introducing nitrogen-containing steam, setting the curing power to be 100-110W/cm, and setting the curing time to be 1-3 s; and step 3: introducing nitrogen-containing steam, setting the curing power to be 110-120W/cm, and setting the curing time to be 1-2 s.
In the primary curing stage, before the touch screen enters the UV curing machine, drying is carried out by a fan, the temperature blown out by the fan is 10-20 ℃, and the drying time is 10-15 s. In the inspection stage, the device is an infrared moisture meter. Introducing nitrogen-containing steam in a secondary curing stage, wherein the mixing ratio of the steam to the nitrogen is 1: 5. the introduction rate of the nitrogen-containing steam is 1.5-1.8L/h. The touch screen is placed on a conveyor belt for transportation, the conveying speed of the conveyor belt is 5-10 m/s, and the UV curing machine is installed on the conveyor belt.
Example 1:
the touch screen dispensing and curing process comprises a primary curing stage, an inspection stage and a secondary curing stage; firstly, low-power curing is adopted in a primary curing stage, the power is 80W/cm, and the curing time is 15 s; in the inspection stage, detecting the humidity of glue on the touch screen by adopting multiple irradiation of an inspection bench, and irradiating the inspection bench with infrared rays for 3 seconds; and in the secondary curing stage, nitrogen-containing steam is introduced, the curing power is set to be 90W/cm, the curing time is 5-8 s, and the introduction rate of the nitrogen steam is 1.5L/h.
Example 2:
the touch screen dispensing and curing process comprises a primary curing stage, an inspection stage and a secondary curing stage; firstly, low-power curing is adopted in a primary curing stage, the power is 82W/cm, and the curing time is 16 s; in the inspection stage, detecting the humidity of glue on the touch screen by adopting multiple irradiation of an inspection bench, and irradiating the inspection bench with infrared rays for 3 seconds; and in the secondary curing stage, nitrogen-containing steam is introduced, the curing power is set to be 95W/cm, the curing time is 5s, and the introduction rate of the nitrogen steam is 1.5L/h.
Example 3:
the touch screen dispensing and curing process comprises a primary curing stage, an inspection stage and a secondary curing stage; firstly, low-power curing is adopted in a primary curing stage, the power is 84W/cm, and the curing time is 17 s; in the inspection stage, detecting the humidity of glue on the touch screen by adopting multiple irradiation of an inspection bench, and irradiating the inspection bench with infrared rays for 3 seconds; and in the secondary curing stage, nitrogen-containing steam is introduced, the curing power is set to be 100W/cm, the curing time is 5s, and the introduction rate of the nitrogen steam is 1.5L/h.
Example 4:
the touch screen dispensing and curing process comprises a primary curing stage, an inspection stage and a secondary curing stage; firstly, low-power curing is adopted in a primary curing stage, the power is 86W/cm, and the curing time is 18 s; in the inspection stage, detecting the humidity of glue on the touch screen by adopting multiple irradiation of an inspection bench, and irradiating the inspection bench with infrared rays for 3 seconds; and in the secondary curing stage, nitrogen-containing steam is introduced, the curing power is set to be 110W/cm, the curing time is 5s, and the introduction rate of the nitrogen steam is 1.5L/h.
Example 5:
the touch screen dispensing and curing process comprises a primary curing stage, an inspection stage and a secondary curing stage; firstly, low-power curing is adopted in a primary curing stage, the power is 88W/cm, and the curing time is 19 s; in the inspection stage, detecting the humidity of glue on the touch screen by adopting multiple irradiation of an inspection bench, and irradiating the inspection bench with infrared rays for 3 seconds; and in the secondary curing stage, nitrogen-containing steam is introduced, the curing power is set to be 110W/cm, the curing time is 5s, and the introduction rate of the nitrogen steam is 1.5L/h.
In summary, in this embodiment, according to the touch screen dispensing and curing process of this embodiment, as can be seen from embodiments 1 to 5, the touch screen prepared in embodiment 4 has the best strength and is not easy to break. The curing process is divided into three stages, so that the time and the curing power can be strictly controlled, and the cost can be effectively controlled; the glue in the touch screen is primarily cured, so that the glue in the touch screen can be prevented from foaming; the accuracy of detecting the humidity of the glue on the touch screen can be guaranteed by adding three times of sampling in the inspection stage; the secondary curing is adopted and the nitrogen-containing steam is introduced in the curing stage, so that the interference of impurity gas in the air to the curing can be reduced, and the cracking of the touch screen caused by the too fast curing in the curing process can be avoided.
The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.
Claims (9)
1. A touch screen dispensing and curing process is characterized by comprising a primary curing stage, an inspection stage and a secondary curing stage; firstly, low-power curing is adopted in a primary curing stage, the power is 80-90W/cm, and the curing time is 15-20 s; in the inspection stage, detecting the humidity of glue on the touch screen by adopting multiple irradiation of an inspection bench, and irradiating the inspection bench with infrared rays for 3-5 s; and in the secondary curing stage, introducing nitrogen-containing steam, setting the curing power to be 90-120W/cm, and setting the curing time to be 5-8 s.
2. The touch screen dispensing and curing process according to claim 1, wherein the preliminary curing stage comprises the following steps:
step 1: starting a UV curing machine, wherein the power is 80-85W/cm, and the curing time is 5-10 s;
step 2: starting a UV curing machine, wherein the power is 85-88W/cm, and the curing time is 5-8 s;
And step 3: and starting the UV curing machine, wherein the power is 88-90W/cm, and the curing time is 5-6 s.
3. The touch screen dispensing and curing process according to claim 1, wherein the inspection stage comprises the following steps:
step 1: starting an inspection table to irradiate for the first time to detect the humidity of glue on the touch screen, and irradiating the inspection table with infrared rays for 1-2 seconds;
step 2: starting the inspection bench to irradiate for the second time to detect the humidity of the glue on the touch screen, and irradiating the inspection bench with infrared rays for 2-3 seconds;
and step 3: starting an inspection table to irradiate for multiple times to detect the humidity of glue on the touch screen, and irradiating the inspection table with infrared rays for 3-5 seconds;
and 4, step 4: and combining the three detection results, and taking the average value of the three detection results as the glue humidity in the touch screen.
4. The touch screen dispensing and curing process according to claim 1, wherein the secondary curing stage comprises the following steps:
step 1: introducing nitrogen-containing steam, setting the curing power to be 90-100W/cm, and setting the curing time to be 5-6 s;
step 2: introducing nitrogen-containing steam, setting the curing power to be 100-110W/cm, and setting the curing time to be 1-3 s;
and step 3: introducing nitrogen-containing steam, setting the curing power to be 110-120W/cm, and setting the curing time to be 1-2 s.
5. The touch screen dispensing and curing process according to claim 1, wherein in the primary curing stage, the touch screen is dried by a fan at a temperature of 10-20 ℃ for 10-15 s before entering a UV curing machine.
6. The dispensing and curing process of the touch screen according to claim 1, wherein the device used in the inspection stage is an infrared moisture meter.
7. The dispensing and curing process for the touch screen according to claim 1, wherein nitrogen-containing steam is introduced in the secondary curing stage, and the mixing ratio of the water steam to the nitrogen is 1: 5.
8. the dispensing and curing process for the touch screen according to claim 7, wherein the introduction rate of the nitrogen-containing steam is 1.5-1.8L/h.
9. The touch screen dispensing and curing process according to claim 1, wherein the touch screen is transported on a conveyor belt, the conveying speed of the conveyor belt is 5-10 m/s, and the UV curing machine is installed on the conveyor belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010647375.2A CN111842067A (en) | 2020-07-07 | 2020-07-07 | Touch screen dispensing and curing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010647375.2A CN111842067A (en) | 2020-07-07 | 2020-07-07 | Touch screen dispensing and curing process |
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| Publication Number | Publication Date |
|---|---|
| CN111842067A true CN111842067A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010647375.2A Pending CN111842067A (en) | 2020-07-07 | 2020-07-07 | Touch screen dispensing and curing process |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130230732A1 (en) * | 2011-02-18 | 2013-09-05 | Postech Academy-Industry Foundation | Paint composition for pre-coated metal and method of curing treatment of pre-coated metal by using the composition |
| CN111190295A (en) * | 2020-01-14 | 2020-05-22 | 重庆烯宇新材料科技有限公司 | Full-lamination process method for liquid optical cement of display |
-
2020
- 2020-07-07 CN CN202010647375.2A patent/CN111842067A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130230732A1 (en) * | 2011-02-18 | 2013-09-05 | Postech Academy-Industry Foundation | Paint composition for pre-coated metal and method of curing treatment of pre-coated metal by using the composition |
| CN111190295A (en) * | 2020-01-14 | 2020-05-22 | 重庆烯宇新材料科技有限公司 | Full-lamination process method for liquid optical cement of display |
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Application publication date: 20201030 |
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