CN107286730B - Special water-based toughened glass ink for touch screen and preparation method thereof - Google Patents

Special water-based toughened glass ink for touch screen and preparation method thereof Download PDF

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CN107286730B
CN107286730B CN201710607472.7A CN201710607472A CN107286730B CN 107286730 B CN107286730 B CN 107286730B CN 201710607472 A CN201710607472 A CN 201710607472A CN 107286730 B CN107286730 B CN 107286730B
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touch screen
ink
water
glass
parts
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CN107286730A (en
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杨中民
周岩
何宜刚
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Amichem New Materials Zhengzhou Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/10—Printing inks based on artificial resins
    • C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof

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Abstract

The invention belongs to the technical field of chemical ink, and particularly relates to a special water-based toughened glass ink for a touch screen and a preparation method thereof, wherein the special water-based toughened glass ink for the touch screen is prepared from the following raw materials in parts by weight: 6-28 parts of inorganic pigment, 20-50 parts of first glass powder frit, 10-40 parts of second glass powder frit, 10-60 parts of water-based varnish, 0-2 parts of wetting dispersant, 0-1 part of defoaming agent and 0-2 parts of flatting agent. The glass surface acoustic wave signal transmission capacity of the touch screen is mainly improved, the problem of signal attenuation of the surface acoustic wave after passing through the touch screen glass is solved, and the glass surface acoustic wave signal transmission capacity of the touch screen has the advantages of good ink covering capacity, high surface acoustic wave propagation speed, small energy attenuation, no phase change and small stripe ink corrosion.

Description

Special water-based toughened glass ink for touch screen and preparation method thereof
Technical Field
The invention belongs to the technical field of chemical ink, and particularly relates to water-based toughened glass ink special for a touch screen and a preparation method thereof.
Background
The touch screen is also called a touch screen, is a new computer input device, and is the simplest, convenient and quick man-machine interaction mode at present. The system is widely applied to the aspects of military electrical appliances, aerospace electrical appliances, high-speed rails, aircraft carriers, ships and automobiles, industrial 4.0 Internet of things, financial banks, commercial retail, industrial control, interactive digital signage, game entertainment and the like. Currently, touch screens are mainly of the surface acoustic wave, infrared, resistive, capacitive type, and the like. The surface acoustic wave touch screen has the characteristics of high resolution, good stability, good light transmission and the like, which makes it superior in other types of touch screen applications. The working principle of the surface acoustic wave touch screen (as shown in fig. 1 and 2) is that a glass ink layer 3 is spread on a touch screen toughened glass substrate 6 and consists of an X-axis positioning device and a Y-axis positioning device, wherein each positioning device consists of a transmitting transducer 1, a receiving transducer 2, and corresponding 45-degree and 135-degree transmitting stripe arrays 4 and receiving stripe arrays 4. The transmitting frequency of the surface acoustic wave 5 is usually 5.54MHz, and the receiving transducer 2 is required to accurately receive the acoustic wave signal transmitted by the transmitting transducer 1 during the use of the touch screen, so that new requirements on the waveguide layer on the touch screen are met: the surface acoustic wave 5 is conducted sensitively, the propagation speed is high, the energy loss is small, and the phase change cannot be generated.
The touch screen glass is transparent, and electronic components, the stripe array, the sound wave transmitting transducer and the sound wave receiving transducer which are arranged on the back surface of the touch screen glass need to be covered by printing a layer of glass ink. The traditional tempered glass ink contains toxic lead elements and cadmium elements or contains a large amount of Na and K, the elements inevitably improve the expansion coefficient of the touch screen glass, the compactness of the touch screen glass is reduced, and pinholes can appear in the tempered ink layer.
The Chinese patent with publication number CN106810937A applied by the applicant relates to water-based high-brightness environment-friendly tempered glass ink which comprises 8-30 parts of inorganic pigment, 30-78 parts of low-melting-point frit, 10-55 parts of ink mixing oil, 0-2 parts of wetting dispersant, 0-1 part of defoaming agent, 0-2 parts of flatting agent and 0-2 parts of solid additive, and simultaneously discloses a process for dissolving the glass ink at 800-1000 ℃, and the glass ink has the advantages of low melting point, good weather resistance and good brightness. However, when the aqueous high-brightness environment-friendly tempered glass ink is used as glass ink of a touch screen, a conducting signal of a waveguide layer formed between the glass ink and the touch screen glass is weak, so that a surface acoustic wave passing through the touch screen cannot be received, and the signal transmission efficiency of the touch screen is reduced.
Disclosure of Invention
The invention aims to provide the special water-based toughened glass ink for the touch screen and the preparation method thereof, which mainly improve the surface acoustic wave signal conduction capability of the touch screen glass and solve the problem of signal attenuation after surface acoustic waves pass through the touch screen glass.
In order to achieve the purpose, the invention designs the special water-based toughened glass ink for the touch screen, which is prepared from the following raw materials in parts by weight: 6-28 parts of inorganic pigment, 20-50 parts of first glass powder frit, 10-40 parts of second glass powder frit, 10-60 parts of water-based varnish, 0-2 parts of wetting dispersant, 0-1 part of defoaming agent and 0-2 parts of flatting agent.
Preferably, the first glass frit consists of the following components in percentage by weight: SiO 2218%-42%、B2O35%-15%、Al2O31%-8%、(Na2O+K2O) 1%-10%、(CaO+MgO+BaO) 0%-12%、Li2O 2%-12%、TiO20%-5%、F0%-3%，Sb2O30 to 2 percent of the total weight of the alloy, and the balance of ZnO.
Preferably, the second glass frit consists of the following components in percentage by weight: SiO 225%-15%、B2O310%-28%、Al2O31 to 3 percent of Bi and the balance of2O3。
Preferably, the aqueous varnish consists of the following components in percentage by weight: 12 to 35 percent of water-based modified acrylic polymer, 0.5 to 2 percent of water-based thickening agent, 10 to 20 percent of ethanol, 5 to 25 percent of butanol and the balance of glycol.
Preferably, the inorganic pigment is any one or more of copper chromium black, iron chromium red, iron chromium brown, titanium nickel yellow, titanium chromium yellow, cobalt green, cobalt blue and titanium dioxide.
Preferably, the dispersing agent, the defoaming agent and the leveling agent are all water-based.
The preparation method of the special water-based toughened glass ink for the touch screen comprises the following steps:
1) preparing a frit: weighing raw materials of a first glass powder frit and a second glass powder frit according to a ratio, uniformly mixing, melting the mixed raw materials at 1250-1450 ℃, preserving heat for 35-55 min, then quenching with water, ball-milling water-quenched clinker for 1-24 h at 100-600 r/min, and drying for 2-24 h at 50-110 ℃ to obtain the first glass powder frit and the second glass powder frit for later use;
2) preparing the varnish: weighing raw materials of the water-based ink-mixing oil according to a proportion, placing at 50-85 ℃, and dispersing at 600-1500 r/min for 30-120 min for later use;
3) preparing the special water-based toughened glass ink for the touch screen: weighing the water-based ink mixing oil, the first glass powder frit, the second glass powder frit, the inorganic pigment, the wetting dispersant, the defoaming agent and the leveling agent according to the proportion, and uniformly mixing; grinding the mixed ink for 3-7 times by using a three-roll grinder; and (4) defoaming the ground ink in vacuum for 30-120 min to obtain the glass ink.
And (3) screen printing the prepared special water-based toughened glass ink for the touch screen on the touch screen, and sintering at 680-700 ℃ for 120-200 s.
According to the invention, Bi element and L i element are adopted to replace partial Na and K in raw materials of a frit, Zn element is introduced, in the aspect of preparation process, the frit is melted by a special process at 1350 ℃ high temperature, the water-quenched frit is subjected to ball milling and drying to obtain two frits with different melting points, the two frits are uniformly mixed, inorganic pigment and water-based ink adjusting oil are added, and water bath mixing and grinding are carried out to prepare the water-based toughened glass ink, after the water-based toughened glass ink is printed on a touch screen glass panel and toughened, besides the performances of low sintering temperature, good weather resistance, excellent covering power, good visual effect and the like, a new waveguide layer is formed, the three outstanding advantages are that 1 sound wave does not generate phase change in the process of waveguide layer conduction, 2 energy attenuation in the process of sound wave conduction is reduced, 3, the printed with a stripe array ink after being sintered at high temperature, the touch screen glass is less corroded, 21.5 inches of touch screen glass is taken as an example (as shown in figure 5), meanwhile, 3 printed with the same energy of an ultrasonic wave transmitting transducer, the energy of the touch screen glass is printed with a touch screen glass, the touch screen glass is printed with a touch screen glass toughened ink with a touch screen glass capable of receiving ultrasonic wave, and the touch screen glass, the touch screen is printed with a touch screen glass capable of receiving ultrasonic wave receiving ink with a touch screen, and the touch screen is relatively small acoustic wave receiving ink, the touch screen is printed with the touch screen, the touch screen glass with the touch screen glass, the touch screen is printed with the touch screen glass with the same energy of the touch screen glass, the touch screen is printed with the touch screen glass, the touch screen is relatively small touch screen glass, the touch screen is printed with the touch screen glass with the touch screen, the touch screen glass.
The water-based toughened glass ink special for the touch screen has low melting pointThe invention adopts two frits to prepare the water-based toughened ink aiming at the defects of pinholes, bubbles, depressions and the like in the toughened ink, and 2 to 12 percent of L i is added into the first glass powder frit (high-melting-point glass powder frit)2The O replaces partial NaOH to effectively reduce the melting temperature and the expansion coefficient of the glass frit, and mainly because the L i element plays an aggregation role in the glass frit, so that the compactness and the hardness of the glass frit are improved, the Na only plays a role in breaking the screen in the glass frit, the L i-containing glass powder frit has good chemical stability compared with the Na-containing glass powder frit, the printed stripe ink has small corrosion to the toughened ink layer, and the stripe ink cannot collapse after being sintered.
The invention also introduces Zn element into the formula, Zn can reduce the melting point of glass powder frits, and Zn is expressed as [ ZnO ] in alkali-containing glass4]The structure exists and enters into the silicon-oxygen tetrahedral network to serve as a network former, so that the expansion coefficient of the glass is reduced, and the chemical stability is improved. The second glass powder frit (low melting point glass powder frit) belongs to high-Bi glass powder frit, which can effectively improve the fluidity of the ink at 680-720 ℃, and can block pinholes at the temperature, and bubbles in the ink layer can quickly float on the surface and break the bubbles due to low viscosity. The common water-based toughened glass ink is prepared by adopting a single frit, and an ink layer (shown in figure 3) after toughened glass is printed contains air holes 7, internal air bubbles 8 and surface depressions 9, which have great blocking effect on the conduction of surface acoustic waves (the conduction speed of the surface acoustic waves in the air is 340m/s, and the propagation speed of the surface acoustic waves in a glass medium is 3980-5640 m/s).
The ink regulating oil adopted by the traditional toughened glass ink is obtained by dissolving resin with xylene, cyclohexanone and isophorone, and contains a large amount of toxic volatile solvents, so that the damage to people and the surrounding environment is large. The invention adopts environment-friendly water-soluble varnish, and can clean equipment by water after printing or roller coating.
The invention has the beneficial effects that:
the special water-based toughened glass ink for the touch screen has the characteristic of good covering power, and after the ink is printed on the touch screen for glass toughening, the formed waveguide layer has the advantages of high surface acoustic wave propagation speed, small energy attenuation, small stripe ink corrosion, no phase change and improved surface acoustic wave sensitivity.
Drawings
FIG. 1 is a front view of a surface acoustic wave touch screen;
FIG. 2 is a cross-sectional view of a surface acoustic wave touch screen;
FIG. 3 is a cross-sectional view of a conventional tempered glass ink after printing;
FIG. 4 is a cross-sectional view of the special water-based tempered glass ink for a touch screen, which is printed;
FIG. 5 is a schematic diagram of the echo energy received by the surface acoustic wave after passing through the touch screen printed with the conventional tempered ink and the touch screen printed with the water-based tempered glass ink specially used for the touch screen according to the present invention;
in the figure: 1. a transmitting transducer; 2. a receiving transducer; 3. a glass ink layer; 4. a striped array; 5. a surface acoustic wave; 6. a glass substrate; 7. air holes; 8. internal air bubbles; 9. the surface is concave; 10. transmitting wave energy of the pulsed wave; 11. transmitting echo energy received by pulse waves after the pulse waves pass through a touch screen printed with the special water-based toughened glass ink for the touch screen; 12. and transmitting echo energy received by pulse waves after the pulse waves pass through a touch screen printed with traditional toughened glass ink.
Detailed Description
The invention will be better understood from the following examples. However, it is easily understood by those skilled in the art that the description of the embodiment is only for illustrating the present invention and should not limit the present invention described in detail in the claims.
Example 1
The special water-based toughened glass ink for the touch screen is prepared from the following raw materials in parts by weight: 12 parts of inorganic pigment, 40 parts of first glass powder frit, 10 parts of second glass powder frit, 37 parts of aqueous varnish, 0.5 part of wetting dispersant and 0.5 part of defoaming agent.
The first glass frit consists of the following components in percentage by weight: SiO 2230%、B2O36.8%、Al2O32%、Na2O 4.5%、K2O 2.5%、CaO3.8%、Li2O 6%、TiO23.8%、F 1.5%，Sb2O30.5 percent and the balance of ZnO.
The second glass powder frit consists of the following components in percentage by weight: SiO 2212%、B2O313%、Al2O31.5% and the balance Bi2O3。
The water-based varnish consists of the following components in percentage by weight: 25% waterborne modified acrylic Polymer HOMAACTM5224D (gold-bonded chemical), 1% aqueous hydroxyethyl cellulose HBR250 (Islamic blue), 14.6% ethanol, 8% butanol, and ethylene glycol in balance.
The inorganic pigment is copper-chromium black (Hunan Mv. science and technology Co., Ltd., B2856).
The wetting dispersant is HX-5030 (Pentium Huaxia).
The antifoaming agent is AFCONA-2035 (Effkoner).
The preparation method of the special water-based toughened glass ink for the touch screen comprises the following steps:
1) preparing a frit: weighing raw materials of a first glass powder frit and a second glass powder frit according to a ratio, uniformly mixing the raw materials by using a mixer, melting the mixed raw materials in a melting furnace at 1350 ℃, preserving heat for 45min, then performing water quenching, performing ball milling on water-quenched slag at 400r/min for 8h, and drying at 60 ℃ for 24h to obtain the first glass powder frit and the second glass powder frit for later use;
2) preparing the varnish: weighing raw materials of the water-based ink-mixing oil according to a proportion, placing the raw materials in a water bath at 85 ℃, and dispersing at a high speed of 1500r/min for 30min for later use;
3) preparing the special water-based toughened glass ink for the touch screen: weighing the aqueous varnish, the first glass powder frit, the second glass powder frit, the inorganic pigment, the wetting dispersant and the defoaming agent according to the proportion, and placing the materials in a mechanical stirrer to be uniformly mixed; grinding the mixed ink for 5 times by using a three-roll grinder; and placing the ground printing ink in a vacuum defoaming machine for vacuum defoaming for 30 min.
And (3) screen-printing the prepared special water-based toughened glass ink for the touch screen to the touch screen, and sintering for 120s at 690 ℃.
Example 2
The special water-based toughened glass ink for the touch screen is prepared from the following raw materials in parts by weight: 12 parts of inorganic pigment, 32 parts of first glass powder frit, 16 parts of second glass powder frit, 38.2 parts of water-based ink mixing oil, 0.5 part of wetting dispersant, 0.5 part of defoaming agent and 0.8 part of flatting agent.
The first glass frit consists of the following components in percentage by weight: SiO 2235%、B2O312%、Al2O31.5%、Na2O 8.2%、K2O 0.3%、CaO3.8%、BaO 3.7%、Li2O 12%、TiO20.5 percent, F1.8 percent and the balance of ZnO.
The second glass powder frit consists of the following components in percentage by weight: SiO 226%、B2O314%、Al2O31.5% and the balance Bi2O3。
The water-based varnish consists of the following components in percentage by weight: 32% waterborne modified acrylic Polymer HOMAACTM5224D (gold-bonded chemical), 1.5% aqueous hydroxyethyl cellulose HBR250 (Asoland), 10% ethanol, 5% butanol, and ethylene glycol.
The inorganic pigment is iron chromium brown (Huashan high new ceramic materials Co., Ltd., BP 311).
The wetting and dispersing agent is UNIQ SPERSE 691U (England Youka chemical).
The antifoaming agent is AFCONA-2035 (Effkoner).
The preparation method of the special water-based toughened glass ink for the touch screen comprises the following steps:
1) preparing a frit: weighing raw materials of a first glass powder frit and a second glass powder frit according to a ratio, uniformly mixing the raw materials by using a mixer, melting the mixed raw materials in a melting furnace at 1350 ℃, preserving heat for 45min, then performing water quenching, performing ball milling on water-quenched molten slag at 350r/min for 20h, and drying at 90 ℃ for 15h to obtain the first glass powder frit and the second glass powder frit for later use;
2) preparing the varnish: weighing raw materials of the water-based ink-mixing oil according to a proportion, placing the raw materials in a water bath at 70 ℃, and dispersing at a high speed of 1500r/min for 45min for later use;
3) preparing the special water-based toughened glass ink for the touch screen: weighing the water-based ink mixing oil, the first glass powder frit, the second glass powder frit, the inorganic pigment, the wetting dispersant, the defoaming agent and the leveling agent according to the proportion, and placing the materials in a mechanical stirrer to be uniformly mixed; grinding the mixed ink for 3 times by using a three-roll grinder; and (4) placing the ground printing ink in a vacuum defoaming machine for vacuum defoaming for 60 min.
And (3) screen-printing the prepared special water-based toughened glass ink for the touch screen to the touch screen, and sintering at 690 ℃ for 160 s.
Example 3
The special water-based toughened glass ink for the touch screen is prepared from the following raw materials in parts by weight: 12 parts of inorganic pigment, 38 parts of first glass powder frit, 12 parts of second glass powder frit, 37 parts of aqueous varnish, 0.5 part of wetting dispersant and 0.5 part of defoaming agent.
The first glass frit consists of the following components in percentage by weight: SiO 2228.2%、B2O38.2%、Al2O34%、Na2O 6.5%、K2O 2.1%、CaO 0.8%、BaO 7.2%、Li2O 9%、TiO21.2 percent, F3 percent and the balance of ZnO.
The second glass powder frit consists of the following components in percentage by weight: SiO 2212%、B2O313%、Al2O31.5% and the balance Bi2O3。
The water-based varnish consists of the following components in percentage by weight: 35% waterborne modified acrylic Polymer HOMAACTM5224D (gold-bonded chemical), 0.8% aqueous hydroxyethyl cellulose HBR250 (Asiland), 15% ethanol, 10% butanol, and ethylene glycol.
The inorganic pigment is titanium nickel yellow (Huashan high-new ceramic materials Co., Ltd., BP531, BP532, BP 533).
The wetting and dispersing agent is UNIQ SPERSE 650U (England Youka chemical).
The defoamer was UNIQ FOAM 182S (England Yoka chemical).
The preparation method of the special water-based toughened glass ink for the touch screen comprises the following steps:
1) preparing a frit: weighing raw materials of a first glass powder frit and a second glass powder frit according to a ratio, uniformly mixing the raw materials by using a mixer, melting the mixed raw materials in a melting furnace at 1350 ℃, preserving heat for 45min, then performing water quenching, performing ball milling on water-quenched molten slag for 5h at 300r/min, and drying at 100 ℃ for 4h to obtain the first glass powder frit and the second glass powder frit for later use;
2) preparing the varnish: weighing raw materials of the water-based ink-mixing oil according to a proportion, placing the raw materials in a water bath at 85 ℃, and dispersing at a high speed of 1500r/min for 30min for later use;
3) preparing the special water-based toughened glass ink for the touch screen: weighing the aqueous varnish, the first glass powder frit, the second glass powder frit, the inorganic pigment, the wetting dispersant and the defoaming agent according to the proportion, and placing the materials in a mechanical stirrer to be uniformly mixed; grinding the mixed ink for 5 times by using a three-roll grinder; and placing the ground printing ink in a vacuum defoaming machine for vacuum defoaming for 30 min.
And (3) screen-printing the prepared special water-based toughened glass ink for the touch screen to the touch screen, and sintering for 200s at 690 ℃.
Example 4
The special water-based toughened glass ink for the touch screen is prepared from the following raw materials in parts by weight: 12 parts of inorganic pigment, 30 parts of first glass powder frit, 20 parts of second glass powder frit, 36.5 parts of water-based ink mixing oil, 0.5 part of wetting dispersant, 0.5 part of defoaming agent and 0.5 part of flatting agent.
The first glass frit consists of the following components in percentage by weight: SiO 2236%、B2O36%、Al2O33%、Na2O7.2%、K2O 1.4%、MgO 1.3%、Li2O 7.1%、TiO22.5 percent of the total weight of the alloy, 2.7 percent of F and the balance of ZnO.
The second glass powder frit consists of the following components in percentage by weight: SiO 225%、B2O312%、Al2O31.8% and the balance Bi2O3。
The water-based varnish consists of the following components in percentage by weight: 26% waterborne modified acrylic polymer HOMACATM5224D (gold-bonded chemical), 1.5% aqueous hydroxyethyl cellulose HBR250 (Asoland), 10% ethanol, 5% butanol, and ethylene glycol.
The inorganic pigment is titanium chrome yellow (Angel ceramic pigment, Foshan City, AT-136073, AT-136014).
The wetting dispersant is HX-5042 (Besturn China).
The defoaming agent is organosilicon emulsion AFCONA-2035 (Effkona).
The leveling agent is organosilicon AFCONA-3035 (Effkona).
The preparation method of the special water-based toughened glass ink for the touch screen comprises the following steps:
1) preparing a frit: weighing raw materials of a first glass powder frit and a second glass powder frit according to a ratio, uniformly mixing the raw materials by using a mixer, melting the mixed raw materials in a melting furnace at 1350 ℃, preserving heat for 45min, then performing water quenching, performing ball milling on water-quenched molten slag for 2h at 400r/min, and drying at 68 ℃ for 24h to obtain the first glass powder frit and the second glass powder frit for later use;
2) preparing the varnish: weighing raw materials of the water-based ink-adjusting oil according to a proportion, placing the raw materials in a water bath at 68 ℃, and dispersing at a high speed of 1200r/min for 60min for later use;
3) preparing the special water-based toughened glass ink for the touch screen: weighing the water-based ink mixing oil, the first glass powder frit, the second glass powder frit, the inorganic pigment, the wetting dispersant, the defoaming agent and the leveling agent according to the proportion, and placing the materials in a mechanical stirrer to be uniformly mixed; grinding the mixed ink for 5 times by using a three-roll grinder; and (4) placing the ground printing ink in a vacuum defoaming machine for vacuum defoaming for 90 min.
And (3) screen-printing the prepared special water-based toughened glass ink for the touch screen to the touch screen, and sintering at 690 ℃ for 160 s.
Example 5
The special water-based toughened glass ink for the touch screen is prepared from the following raw materials in parts by weight: 8 parts of inorganic pigment, 20 parts of first glass powder frit, 10 parts of second glass powder frit, 60 parts of water-based varnish, 0.5 part of wetting dispersant and 0.5 part of defoaming agent.
The first glass frit consists of the following components in percentage by weight: SiO 2232.2%、B2O36.2%、Al2O32.5%、 Na2O 5.2%、K2O 2.1 %、CaO 3.8%、MgO 2%、BaO 2.6%、Li2O 5.1%、TiO20.5 percent and the balance of ZnO.
The second glass powder frit consists of the following components in percentage by weight: SiO 225%、B2O322%、Al2O32% of the balance being Bi2O3。
The water-based varnish consists of the following components in percentage by weight: 32% waterborne modified acrylic Polymer HOMAACTM5224D (gold-bonded chemical), 2% aqueous hydroxyethyl cellulose HBR250 (Asiland), 15% ethanol, 10% butanol, and ethylene glycol.
The inorganic pigment is TiO2(DuPont, 706).
The wetting dispersant is organic silicon HX-5041 (Chinese pentium).
The defoaming agent is a mineral oil and wax mixture AFCONA-2035 (Effkona).
The preparation method of the special water-based toughened glass ink for the touch screen comprises the following steps:
1) preparing a frit: weighing raw materials of a first glass powder frit and a second glass powder frit according to a ratio, uniformly mixing the raw materials by using a mixer, melting the mixed raw materials in a melting furnace at 1350 ℃, preserving heat for 45min, then quenching with water, ball-milling water-quenched slag for 4h at 300r/min, and drying for 2h at 100 ℃ to obtain the first glass powder frit and the second glass powder frit for later use;
2) preparing the varnish: weighing raw materials of the water-based ink-mixing oil according to a proportion, placing the raw materials in a water bath at 85 ℃, and dispersing at a high speed of 1500r/min for 30min for later use;
3) preparing the special water-based toughened glass ink for the touch screen: weighing the aqueous varnish, the first glass powder frit, the second glass powder frit, the inorganic pigment, the wetting dispersant and the defoaming agent according to the proportion, and placing the materials in a mechanical stirrer to be uniformly mixed; grinding the mixed ink for 4 times by using a three-roll grinder; and placing the ground printing ink in a vacuum defoaming machine for vacuum defoaming for 45 min.
And (3) screen-printing the prepared special water-based toughened glass ink for the touch screen to the touch screen, and sintering for 200s at 690 ℃.
Example 6
The special water-based toughened glass ink for the touch screen is prepared from the following raw materials in parts by weight: 28 parts of inorganic pigment, 40 parts of first glass powder frit, 16 parts of second glass powder frit, 13.95 parts of aqueous varnish, 2 parts of wetting dispersant and 0.05 part of defoaming agent.
The first glass frit consists of the following components in percentage by weight: SiO 2236.4%、B2O38.9 %、Al2O33%、K2O 4.2 %、CaO 3.8%、BaO 1.9%、Li2O 11%、TiO20.5 percent and the balance of ZnO.
The second glass powder frit consists of the following components in percentage by weight: SiO 228%、B2O320%、Al2O32% of the balance being Bi2O3。
The water-based varnish consists of the following components in percentage by weight: 22% waterborne modified acrylic Polymer HOMACATM5224D (gold-bonded chemical), 1.5% aqueous hydroxyethyl cellulose HBR250 (Shilan), 18% of ethanol, 10% of butanol and the balance of glycol.
The inorganic pigment is cobalt green (Jiangxi gold ring pigment Co., Ltd., JHG-8401, JHG-8403).
The wetting and dispersing agent is UNIQ SPERSE 691U (England Youka chemical).
The defoamer was UNIQ FOAM 282W (England Yoka chemical).
The preparation method of the special water-based toughened glass ink for the touch screen comprises the following steps:
1) preparing a frit: weighing raw materials of a first glass powder frit and a second glass powder frit according to a ratio, uniformly mixing the raw materials by using a mixer, melting the mixed raw materials in a melting furnace at 1350 ℃, preserving heat for 45min, then performing water quenching, performing ball milling on water-quenched molten slag for 5h at 350r/min, and drying at 80 ℃ for 20h to obtain the first glass powder frit and the second glass powder frit for later use;
2) preparing the varnish: weighing raw materials of the water-based ink-adjusting oil according to a proportion, placing the raw materials in a water bath at 85 ℃, and dispersing at a high speed of 1000r/min for 120min for later use;
3) preparing the special water-based toughened glass ink for the touch screen: weighing the aqueous varnish, the first glass powder frit, the second glass powder frit, the inorganic pigment, the wetting dispersant and the defoaming agent according to the proportion, and placing the materials in a mechanical stirrer to be uniformly mixed; grinding the mixed ink for 4 times by using a three-roll grinder; and placing the ground printing ink in a vacuum defoaming machine for vacuum defoaming for 30 min.
And (3) screen-printing the prepared special water-based toughened glass ink for the touch screen to the touch screen, and sintering at 690 ℃ for 160 s.
Example 7
The special water-based toughened glass ink for the touch screen is prepared from the following raw materials in parts by weight: 6 parts of inorganic pigment, 50 parts of first glass powder frit, 31 parts of second glass powder frit, 10 parts of water-based ink mixing oil, 1 part of defoaming agent and 2 parts of flatting agent.
The first glass frit consists of the following components in percentage by weight: SiO 2218%、B2O315 %、Al2O38%、Na2O 10 %、MgO 4.8%、BaO 7.2%、Li2O 12%、TiO 25 percent, and the balance of ZnO.
The second glass powder frit consists of the following components in percentage by weight: SiO 225%、B2O328%、Al2O33% of Bi in balance2O3。
The water-based varnish consists of the following components in percentage by weight: 12% waterborne modified acrylic Polymer HOMAACTM5224D (gold-bonded chemical), 2% aqueous hydroxyethyl cellulose HBR250 (Asiland), 20% ethanol, 25% butanol, and ethylene glycol.
The inorganic pigment is iron chromium red (Jiangxi gold ring pigment Co., Ltd., JHG-212).
The defoamer was UNIQ FOAM 282W (England Yoka chemical).
The leveling agent is organosilicon AFCONA-3035 (Effkona).
The preparation method of the special water-based toughened glass ink for the touch screen comprises the following steps:
1) preparing a frit: weighing raw materials of a first glass powder frit and a second glass powder frit according to a ratio, uniformly mixing the raw materials by using a mixer, melting the mixed raw materials in a melting furnace at 1250 ℃, preserving heat for 55min, then performing water quenching, performing ball milling on water-quenched molten slag for 24h at 100r/min, and drying at 50 ℃ for 24h to obtain the first glass powder frit and the second glass powder frit for later use;
2) preparing the varnish: weighing raw materials of the water-based ink-mixing oil according to a proportion, placing the raw materials in a water bath at 50 ℃, and dispersing at a high speed of 1500r/min for 30min for later use;
3) preparing the special water-based toughened glass ink for the touch screen: weighing the water-based ink mixing oil, the first glass powder frit, the second glass powder frit, the inorganic pigment, the defoaming agent and the flatting agent according to the proportion, and placing the materials in a mechanical stirrer to be uniformly mixed; grinding the mixed ink for 3 times by using a three-roll grinder; and (4) placing the ground printing ink in a vacuum defoaming machine for vacuum defoaming for 120 min.
And (3) screen-printing the prepared special water-based toughened glass ink for the touch screen to the touch screen, and sintering at 680 ℃ for 180 s.
Example 8
The special water-based toughened glass ink for the touch screen is prepared from the following raw materials in parts by weight: 28 parts of inorganic pigment, 20 parts of first glass powder frit, 40 parts of second glass powder frit and 12 parts of aqueous varnish.
The first glass frit consists of the following components in percentage by weight: SiO 2242%、B2O315 %、Al2O38%、K2O 10%、Li2O 12%、TiO 25 percent, and the balance of ZnO.
The second glass powder frit consists of the following components in percentage by weight: SiO 2215%、B2O310%、Al2O31% of the balance being Bi2O3。
The water-based varnish consists of the following components in percentage by weight: 35% waterborne modified acrylic Polymer HOMAACTM5224D (gold-bonded chemical), 0.5% aqueous hydroxyethyl cellulose HBR250 (Asoland), 10% ethanol, 5% butanol, and ethylene glycol.
The inorganic pigment is cobalt green (Jiangxi gold ring pigment Co., Ltd., JHG-8401, JHG-8403).
The preparation method of the special water-based toughened glass ink for the touch screen comprises the following steps:
1) preparing a frit: weighing raw materials of a first glass powder frit and a second glass powder frit according to a ratio, uniformly mixing the raw materials by using a mixer, melting the mixed raw materials in a melting furnace at 1450 ℃, carrying out heat preservation for 35min, then carrying out water quenching, carrying out ball milling on water-quenched molten slag for 1h at 600r/min, and drying for 2h at 110 ℃ to obtain the first glass powder frit and the second glass powder frit for later use;
2) preparing the varnish: weighing raw materials of the water-based ink-mixing oil according to a proportion, placing the raw materials in a water bath at 85 ℃, and dispersing at a high speed of 600r/min for 120min for later use;
3) preparing the special water-based toughened glass ink for the touch screen: weighing the aqueous ink mixing oil, the first glass powder frit, the second glass powder frit and the inorganic pigment according to the proportion, and placing the materials in a mechanical stirrer to be uniformly mixed; grinding the mixed ink for 7 times by using a three-roll grinder; and placing the ground printing ink in a vacuum defoaming machine for vacuum defoaming for 30 min.
And (3) screen-printing the prepared special water-based toughened glass ink for the touch screen to the touch screen, and sintering at 700 ℃ for 140 s.
Example 9
The special water-based toughened glass ink for the touch screen is prepared from the following raw materials in parts by weight: 17 parts of inorganic pigment, 35 parts of first glass powder frit, 11 parts of second glass powder frit, 35 parts of aqueous ink mixing oil, 1 part of wetting dispersant and 1 part of flatting agent.
The first glass frit consists of the following components in percentage by weight: SiO 2230%、B2O310%、Al2O34.5%、K2O 5.5 %、CaO 3%、BaO 3%、Li2O 7%、Sb2O31% and the balance of ZnO.
The second glass powder frit consists of the following components in percentage by weight: SiO 2210%、B2O319%、Al2O31.5% and the balance Bi2O3。
The water-based varnish consists of the following components in percentage by weight: 23.5% waterborne modified acrylic Polymer HOMACATM5224D (gold-bonded chemical), 1.25% aqueous hydroxyethyl cellulose HBR250 (Asiland), 15% ethanol, 15% butanol, and ethylene glycol.
The inorganic pigment is cobalt blue (Jiangxi gold ring pigments Co., Ltd., JHG-419).
The wetting and dispersing agent is UNIQ SPERSE 650U (England Youka chemical).
The leveling agent is organosilicon AFCONA-3035 (Effkona).
The preparation method of the special water-based toughened glass ink for the touch screen comprises the following steps:
1) preparing a frit: weighing raw materials of a first glass powder frit and a second glass powder frit according to a ratio, uniformly mixing the raw materials by using a mixer, melting the mixed raw materials in a melting furnace at 1350 ℃, preserving heat for 45min, then performing water quenching, performing ball milling on water-quenched molten slag at 350r/min for 12h, and drying at 80 ℃ for 13h to obtain the first glass powder frit and the second glass powder frit for later use;
2) preparing the varnish: weighing raw materials of the water-based ink-mixing oil according to a proportion, placing the raw materials in a water bath at 68 ℃, and dispersing at a high speed of 1050r/min for 75min for later use;
3) preparing the special water-based toughened glass ink for the touch screen: weighing the water-based ink mixing oil, the first glass powder frit, the second glass powder frit, the inorganic pigment, the wetting dispersion and the flatting agent according to the proportion, and placing the materials in a mechanical stirrer to be uniformly mixed; grinding the mixed ink for 5 times by using a three-roll grinder; and placing the ground printing ink in a vacuum defoaming machine for vacuum defoaming for 75 min.
And (3) screen-printing the prepared special water-based toughened glass ink for the touch screen to the touch screen, and sintering at 690 ℃ for 160 s.
The aqueous tempered glass ink specially used for the touch screen and the conventional tempered glass ink prepared in the embodiments 1 to 9 are respectively printed on the touch screen and subjected to a surface acoustic wave conduction test, the transmitted pulse wave respectively passes through the touch screen printed with the aqueous tempered glass ink specially used for the touch screen and the surface acoustic wave printed with the conventional tempered glass ink, then the echo is received by a receiver after passing through the touch screen, and the wave intensity is detected, as shown in fig. 5, the detection results are shown in fig. 5, the three wave intensities in fig. 5 are respectively wave energy 10 of the transmitted pulse wave, the energy 11 of the transmitted pulse wave after passing through the touch screen printed with the aqueous tempered glass ink specially used for the touch screen, and the energy 12 of the transmitted pulse wave after passing through the touch screen printed with the conventional tempered glass ink, and it can be seen that the echo energy 11 received by the transmitted pulse wave after passing through the touch screen printed with the aqueous tempered glass ink specially used for the touch screen is obviously higher than the echo energy The echo energy 12 received by the ink touch screen also shows that the waveguide layer formed by printing the special water-based toughened glass ink for the touch screen does not generate phase change, so that the special water-based toughened glass ink for the touch screen has the advantages of high propagation speed, small energy attenuation and high sensitivity of receiving surface acoustic waves.

Claims (4)

1. The special water-based toughened glass ink for the touch screen is characterized by being prepared from the following raw materials in parts by weight: 6-28 parts of inorganic pigment, 20-50 parts of first glass powder frit, 10-40 parts of second glass powder frit, 10-60 parts of water-based varnish, 0-2 parts of wetting dispersant, 0-1 part of defoaming agent and 0-2 parts of flatting agent;
the first glass frit consists of the following components in percentage by weight: SiO 2218%-42%、B2O35%-15%、Al2O31%-8%、(Na2O+K2O) 1%-10%、(CaO+MgO+BaO) 0%-12%、Li2O 2%-12%、TiO20%-5%、F 0%-3%、Sb2O30 to 2 percent of ZnO, and the balance of ZnO;
the second glass powder frit consists of the following components in percentage by weight: SiO 225%-15%、B2O310%-28%、Al2O31 to 3 percent of Bi and the balance of2O3；
The water-based varnish consists of the following components in percentage by weight: 12 to 35 percent of water-based modified acrylic polymer, 0.5 to 2 percent of water-based thickening agent, 10 to 20 percent of ethanol, 5 to 25 percent of butanol and the balance of glycol;
the inorganic pigment is any one or more of copper chromium black, iron chromium red, iron chromium brown, titanium nickel yellow, titanium chromium yellow, cobalt green, cobalt blue and titanium dioxide;
the type of the waterborne modified acrylic polymer is HOMAACTM5224D, the aqueous thickener is aqueous hydroxyethyl cellulose HBR 250;
the wetting dispersant is HX-5030, UNIQ SPERSE 691U, UNIQ SPERSE 650U, HX-5042 or HX-5041; the defoaming agent is AFCONA-2035, UNIQ FOAM 182S or UNIQ FOAM 282W; the flatting agent is organosilicon AFCONA-3035.
2. The special aqueous toughened glass ink for the touch screen, as recited in claim 1, wherein the wetting dispersant, the defoamer and the leveling agent are all aqueous.
3. The special aqueous toughened glass ink for the touch screen, as claimed in claim 1, wherein the copper chromium black is B2856, the iron chromium brown is BP311, the titanium nickel yellow is BP531, BP532 or BP533, the titanium chromium yellow is AT-136073 or AT-136014, the titanium dioxide is DuPont 706, the cobalt green is JHG-8401 or JHG-8403, the iron chromium red is JHG-212, and the cobalt blue is JHG-419.
4. The preparation method of the special water-based tempered glass ink for the touch screen, which is characterized by comprising the following steps of:
1) preparing a frit: weighing raw materials of the first glass powder frit and raw materials of the second glass powder frit according to a ratio, uniformly mixing, melting the mixed raw materials in a smelting furnace, carrying out heat preservation and water quenching, and carrying out ball milling and drying on water-quenched clinker slag to obtain the first glass powder frit and the second glass powder frit for later use;
2) preparing the varnish: weighing raw materials of the water-based ink-adjusting oil according to a proportion, and uniformly dispersing for later use;
3) preparing the special water-based toughened glass ink for the touch screen: weighing the water-based tempered glass ink, the first glass powder frit, the second glass powder frit, the inorganic pigment, the wetting dispersant, the defoaming agent and the leveling agent according to the proportion, placing the materials into a mechanical stirrer to be uniformly mixed, and grinding and vacuum defoaming the mixture to obtain the water-based tempered glass ink special for the touch screen.
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