CN108546453B - High-temperature water-based high-coverage white ink and preparation method thereof - Google Patents
High-temperature water-based high-coverage white ink and preparation method thereof Download PDFInfo
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Abstract
The invention discloses high-temperature water-based high-coverage white ink and a preparation method thereof, wherein the high-temperature water-based high-coverage white ink is prepared by mixing and grinding 40-60% of glass-based glaze, 15-35% of varnish and 15-35% of titanium dioxide in percentage by mass respectively. The components of the heat-resistant material in the glass-based glaze enable the prepared ink to have good high-temperature resistance and can adapt to the use environment with rapid temperature change; the water milling mode is adopted in the preparation process of the glass-based glaze, so that the glossiness of the glass-based glaze can be improved, the sand holes are reduced, and the covering capacity of the printing ink is improved; the mode of filter-pressing water outlet after water grinding can effectively prevent the re-agglomeration of materials. The invention also provides a using method of the high-temperature water-based high-coverage white ink. The high-temperature water-based high-covering white ink prepared by the method has the advantages of strong covering capability, good high-temperature resistance, high glossiness, excellent corrosion resistance, environment-friendly production process and suitability for industrial production.
Description
Technical Field
The invention belongs to the technical field of printing ink, and particularly relates to high-temperature water-based high-coverage white printing ink and a preparation method thereof.
Background
With the rapid progress of industrial manufacturing technology, the printing industry is also rapidly developing. Printing is a technique in which original document information such as characters, pictures, photographs, forgery prevention, etc. is subjected to processes such as plate making, inking, pressing, etc., ink is transferred to the surface of a material such as paper, fabric, plastic, leather, etc., and the contents of the original document are transferred to the surface of a printing material by a printing machine and the ink applied thereto. In the printing implementation process, the selection of the ink is a very important step, and the selection of the ink with proper performance can well meet the requirements on quality, environmental protection and cost in production aiming at different printing materials and different use environments. The traditional solvent-based ink usually selects organic solvents such as toluene, xylene and ether as dispersion media, and although the solvent-based ink has good adaptability to construction environment in the use process, the VOC emission of the solvent-based ink is high in the use process, so that the solvent-based ink has great harm to the environment and constructors. With the improvement of environmental protection requirements, the use of the traditional solvent-based ink is greatly limited. The water-based ink has the advantages of low price, convenient construction, environmental protection and the like, and is the most competitive substitute of solvent-based ink. However, since water-based inks generally have problems such as poor adhesion, long curing time, and high curing temperature, it is an important research direction to improve the performance of water-based inks and to expand the range of application of water-based inks.
The Chinese invention patent with application number 200910107551.7 named as 'a water-based ink composition and a preparation method thereof' takes ethylene-vinyl acetate copolymer, water-based polyurethane, pigment filler, thickening agent, cross-linking agent and water as raw materials, and the water-based ink composition is obtained by stirring at room temperature. The invention is a Chinese invention patent with application number 201710426068 and X name of 'a low-temperature fast curing water-based ink and a preparation method thereof', which takes water-based resin, pigment, auxiliary agent, filler, water, dispersant and metal ion cross-linking agent as raw materials, and the required water-based ink is prepared by stirring at 50-70 ℃. However, the two inks have poor ability to adapt to environmental temperature changes in the using process, and have no good stability performance under the condition of rapid temperature change.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides high-temperature water-based high-hiding white ink and a preparation method thereof. The high-temperature water-based high-coverage white ink is prepared by mixing and grinding glass-based glaze, ink mixing oil and titanium dioxide; the components of the heat-resistant material in the glass-based glaze enable the prepared ink to have good high-temperature resistance and can adapt to the use environment with rapid temperature change; the water milling mode is adopted in the preparation process of the glass-based glaze, so that the glossiness of the glass-based glaze can be improved, the sand holes are reduced, and the covering capacity of the printing ink is improved; the mode of filter-pressing dewatering is adopted after the water grinding, so that the re-agglomeration of the materials can be effectively prevented. The ink mixing oil adopts the waterborne acrylic resin modified by the epoxy resin as a raw material in the preparation process, so that the adhesive force and the glossiness of the ink can be effectively improved. The invention also provides a using method of the high-temperature water-based high-coverage white ink. The high-temperature water-based high-covering white ink prepared by the method has the advantages of strong covering capability, good high-temperature resistance, high glossiness and excellent corrosion resistance, no organic volatile gas is generated in the preparation process, and the production process is environment-friendly.
The technical effect to be achieved by the invention is realized by the following scheme:
the high-temperature water-based high-coverage white ink provided by the invention comprises the following components in percentage by mass:
40-60% of glass-based glaze
15 to 35 percent of varnish
15 to 35 percent of titanium dioxide
The glass-based glaze comprises the following components in percentage by mass:
sodium borate 15-30%
20 to 40 percent of silicon oxide
5 to 20 percent of zinc oxide
1 to 10 percent of potassium carbonate
2 to 15 percent of sodium carbonate
2 to 15 percent of lithium carbonate
1 to 10 percent of silicon lime
0.5 to 8 percent of titanium dioxide
0.5 to 8 percent of tin oxide
1 to 10 percent of potash feldspar
The ink mixing oil comprises the following components in percentage by mass:
1 to 10 percent of acrylic resin
1 to 10 percent of cellulose
Polyvinyl pyrrolidone 1-15%
Diethylene glycol butyl ether 60-80%
5-20% of white water prevention.
Further preferably, the high-temperature water-based high-hiding white ink comprises the following components in percentage by mass:
45 to 55 percent of glass-based glaze
20 to 30 percent of varnish
20 to 30 percent of titanium dioxide
The glass-based glaze comprises the following components in percentage by mass:
sodium borate 20% -28
25 to 35 percent of silicon oxide
10 to 15 percent of zinc oxide
2 to 8 percent of potassium carbonate
5 to 10 percent of sodium carbonate
5 to 10 percent of lithium carbonate
2 to 8 percent of silicon lime
1 to 5 percent of titanium dioxide
1 to 5 percent of tin oxide
2 to 8 percent of potash feldspar
The ink mixing oil comprises the following components in percentage by mass:
2 to 6 percent of acrylic resin
2 to 8 percent of cellulose
2 to 10 percent of polyvinylpyrrolidone
Diethylene glycol butyl ether 65-75%
White water prevention 10% -18%.
Further, the acrylic resin in the varnish is a water-based acrylic resin, preferably an epoxy resin modified water-based acrylic resin.
Further, the preparation method of the epoxy resin modified waterborne acrylic resin comprises the following steps: adding 18-25% of solvent and 5-10% of epoxy resin by mass percent into a reaction kettle provided with a stirring device, uniformly mixing 3-15% of acrylic acid, 20-30% of methyl methacrylate, 8-16% of methyl acrylate, 6-15% of hydroxyethyl acrylate and 1-5% of initiator by mass percent, and then dripping into the reaction kettle, controlling the dripping time to be 2.5-3.5h, continuing to react for 3-4h after finishing dripping, controlling the stirring speed to be 500r/min during the reaction process, and controlling the heating temperature to be the reflux temperature of the solvent; filtering and drying after the reaction is finished to obtain the water-based acrylic resin; the solvent is one or more of ethyl acetate, propyl acetate and butyl acetate; the initiator is one or more of azodiisobutyronitrile, dibenzoyl peroxide and tert-butyl peroxybenzoate. The solvent reflux method is adopted to synthesize the water-based acrylic resin, the solvent can be recycled, the yield of the water-based acrylic resin can be increased, and the synthesis cost is saved.
The high-temperature water-based high-coverage white ink is prepared from glass-based glaze, ink mixing oil and titanium dioxide. The glass-based glaze has high strength, high hardness and good corrosion resistance, and the sodium borate, the silicon oxide, the silicon lime, the titanium dioxide and the tin oxide have high hardness, strength, heat resistance and corrosion resistance, so that the heat resistance of the ink can be enhanced, the stability of the ink can be maintained in the process of rapid temperature change, the adhesive force of the ink can be enhanced, the adhesive force of an ink coating can be enhanced, and the ink is not easy to fall off in the using process; in the calcining and melting process, the crystal structures of the five components are fused with each other, and atoms are recombined to form a more stable chemical bond, so that the ink has a stable structure and has the characteristics of excellent high-temperature resistance and corrosion resistance in the using process; meanwhile, the existence of the silicon oxide can improve the ball milling efficiency in the preparation process of the glass-based glaze to a certain extent. The zinc oxide has high transparency and can improve the glossiness of the ink. The potassium carbonate can be used as a fluxing agent in the melting process, so that the melting speed of the raw materials is increased, and the production efficiency is improved. The lithium carbonate can play a role of a coagulant, and the efficiency of mutual fusion of the raw materials in the glass-based glaze at high temperature is improved. The soda ash can reduce the erosion of the raw materials to the refractory material on the inner wall of the calcining furnace in the melting process, and prolong the service life of the calcining furnace. The potassium feldspar has high melt viscosity, so that the binding force of the raw materials in a molten state can be improved, the melting effect can be improved, and the density of the ink can be improved. The sodium borate, the silicon oxide, the zinc oxide, the potassium carbonate, the sodium carbonate, the lithium carbonate, the silicon lime, the titanium dioxide, the tin oxide and the potassium feldspar zirconium are fully mixed to serve as the preparation raw materials of the glass-based glaze, and the prepared glass-based glaze is excellent in performance and mainly shows high temperature resistance, good corrosion resistance and strong weather resistance.
The waterborne resin has the advantages of low price, safe use, resource saving, environmental pollution reduction and the like, and the waterborne acrylic resin is one of pollution-free waterborne resins which are developed fastest and have the most varieties. According to the invention, the epoxy resin is adopted to modify the waterborne acrylic resin, so that the defects of poor adhesive force and low glossiness of the waterborne acrylic resin can be improved, and meanwhile, the modified waterborne acrylic resin has good hardness and weather resistance. The polyvinylpyrrolidone can play a role of a dispersing agent in the varnish as a high molecular surfactant, is beneficial to the rapid dispersion and dissolution of all components in the varnish, can also be used as an anti-settling agent to prevent the re-agglomeration of materials in the process of mixing with the glass-based glaze, and meanwhile, the addition of the polyvinylpyrrolidone can improve the glossiness of the ink and can improve the thermal stability of the ink. The white water can prevent water in the air from attaching to the surface of the ink, and prevent the ink printing coating from whitening and fogging. The diethylene glycol monobutyl ether is used as a solvent, the acrylic resin, the cellulose, the polyvinylpyrrolidone and the white water are dissolved in the solvent, so that the viscosity and the surface tension of the ink can be effectively adjusted, the construction condition of the ink in the using process is improved, the adhesive force of an ink coating can be improved, and the weather resistance of the ink is enhanced. The titanium dioxide is used as a component for adjusting the color of the ink, and when the mass percentage of the titanium dioxide in the ink reaches 15%, the pure white bright surface can be printed by the ink.
The glass-based glaze, the ink-adjusting oil and the titanium dioxide are mixed according to different proportions to prepare the high-temperature water-based high-coverage white ink, and the advantages of the three components are integrated to meet the use requirements of the ink.
Further, the particle size of the high-temperature water-based high-hiding white ink particles is 5-13 mu m.
Further, the preparation method of the high-temperature water-based high-hiding white ink comprises the following steps:
s01, preparing the glass-based glaze:
the raw materials in the glass-based glaze are uniformly mixed and then melted at the temperature of 1000-1200 ℃, and after melting, water quenching, water grinding, filter pressing, drying and sieving are sequentially carried out to prepare the glass-based glaze. The water quenching fixes the molten glass-based glaze and breaks the glass-based glaze into fine particles, which is beneficial to increasing the strength of the glass-based glaze; the water milling time is 20-24h, the bead-to-water ratio is 3:1:1, the bead size ratio is large to medium to small =1:1:3, and after water milling, a 500-mesh vibrating screen is used for filtering water and grinding the water into pulp, so that the prepared ink has a good covering effect; the water milling mode can improve the luster of the glass-based glaze, reduce sand holes and improve the covering capability. The filter pressing process is dewatered, so that the re-agglomeration of materials can be effectively prevented, the granularity of the roasted printing ink particles is obviously reduced, and the waste materials generated in the process can be reduced. Drying, sieving with 500 mesh sieve to obtain glass-based glaze particles with particle size of 10-28 μm;
s02, preparing the varnish:
uniformly mixing all the raw materials in the varnish, stirring and dissolving to prepare varnish;
s03, preparing the high-temperature water-based high-hiding white ink:
and (3) uniformly mixing the glass-based glaze prepared in the step S01, the varnish prepared in the step S02 and titanium dioxide, carrying out ball milling for 7-9h by using zirconium beads, wherein the bead ratio in the ball milling process is 2:1, and after the ball milling is finished, sieving by using a 1000-mesh sieve to prepare the high-temperature water-based high-coverage white ink.
Further, the use method of the high-temperature water-based high-hiding white ink comprises the following steps: 150-mesh screen printing is used, the printing is carried out at 180 ℃ under 160-mesh, the baking is carried out for 3-5 minutes, the surface is dried and then the tempering is carried out, and the tempering temperature is 680-mesh and 720 ℃.
The invention has the following advantages:
1. the invention adopts a water milling mode to improve the luster of the glass-based glaze, reduce sand holes and improve the covering capability.
2. The invention adopts a filter pressing mode to dehydrate, can effectively prevent the re-agglomeration of materials and reduce the waste materials generated in the production process.
3. The high-temperature water-based high-covering white ink prepared by the method has high glossiness, strong covering capability, high temperature resistance and excellent corrosion resistance.
4. The preparation method of the high-temperature water-based high-coverage white ink is simple and easy to implement, low in preparation cost, environment-friendly and suitable for industrial production.
Detailed Description
The present invention will be described in detail with reference to examples.
Example 1
S01, preparing the glass-based glaze:
the glass-based glaze comprises the following components in percentage by mass:
23.4% of sodium borate, 31.1% of silicon oxide, 10.9% of zinc oxide, 5.5% of potassium carbonate, 7.8% of soda ash, 6.9% of lithium carbonate, 6.0% of silica fume, 1.5% of titanium dioxide, 2.3% of tin oxide and 4.6% of potassium feldspar;
the raw materials in the glass-based glaze are uniformly mixed and then melted at the temperature of 1000 ℃, and after the raw materials are melted, water quenching, water grinding, filter pressing, drying and sieving are sequentially carried out to prepare the glass-based glaze. The water milling time is 20 hours, the bead material water ratio is 3:1:1, the bead size ratio is large: medium: small =1:1:3, the mixture is filtered by a 500-mesh vibrating screen and ground into slurry, and then the slurry is filtered by a filter press to remove water and dried, and the dried slurry is screened by a 500-mesh screen to prepare glass-based glaze;
s02, preparing the varnish:
the ink mixing oil comprises the following components in percentage by mass:
2.5 percent of acrylic resin, 2.5 percent of cellulose, 3.5 percent of polyvinylpyrrolidone, 76.5 percent of diethylene glycol monobutyl ether and 15.0 percent of white water prevention;
the acrylic resin is waterborne acrylic resin modified by epoxy resin, and the synthetic method comprises the following steps: adding 24% of ethyl acetate and 8% of epoxy resin by mass percent into a reaction kettle provided with a stirring device, uniformly mixing 13% of acrylic acid, 26% of methyl methacrylate, 15% of methyl acrylate, 10% of hydroxyethyl acrylate and 4% of azobisisobutyronitrile by mass percent, and then dripping into the reaction kettle, wherein the dripping time is controlled to be 3 hours, the reaction is continued for 3.5 hours after the dripping is finished, the stirring speed is controlled to be 350r/min during the reaction process, and the heating temperature is controlled to be 77 ℃; filtering and drying after the reaction is finished to obtain the epoxy resin modified waterborne acrylic resin;
uniformly mixing the acrylic resin, cellulose, polyvinylpyrrolidone, diethylene glycol monobutyl ether and white water prevention liquid, stirring and dissolving to prepare the varnish;
s03, preparing the high-temperature water-based high-hiding white ink:
and (3) uniformly mixing the glass-based glaze prepared in the step S01, the varnish prepared in the step S02 and the titanium dioxide according to the mass percentage of 51.6%, 24.2% and 24.2%, then carrying out ball milling for 8 hours by using zirconium beads, wherein the bead-to-material ratio in the ball milling process is 2:1, and after the ball milling is finished, sieving by using a 1000-mesh sieve to prepare the high-temperature water-based high-coverage white ink.
Example 2
S01, preparing the glass-based glaze:
the glass-based glaze comprises the following components in percentage by mass:
23.4% of sodium borate, 30.0% of silicon oxide, 10.9% of zinc oxide, 1.0% of potassium carbonate, 15.0% of sodium carbonate, 5.3% of lithium carbonate, 6.0% of silica fume, 1.5% of titanium dioxide, 2.3% of tin oxide and 4.6% of potassium feldspar;
the raw materials in the glass-based glaze are uniformly mixed and then melted at the temperature of 1000 ℃, and after the raw materials are melted, water quenching, water grinding, filter pressing, drying and sieving are sequentially carried out to prepare the glass-based glaze. The water milling time is 20 hours, the bead material water ratio is 3:1:1, the bead size ratio is large: medium: small =1:1:3, the mixture is filtered by a 500-mesh vibrating screen and ground into slurry, and then the slurry is filtered by a filter press to remove water and dried, and the dried slurry is screened by a 500-mesh screen to prepare glass-based glaze;
s02, preparing the varnish:
the ink mixing oil comprises the following components in percentage by mass:
2.5 percent of acrylic resin, 2.5 percent of cellulose, 1.0 percent of polyvinylpyrrolidone, 80.0 percent of diethylene glycol monobutyl ether and 14.0 percent of white water prevention;
the acrylic resin is waterborne acrylic resin modified by epoxy resin, and the synthetic method comprises the following steps: adding 24% of ethyl acetate and 10% of epoxy resin by mass percent into a reaction kettle provided with a stirring device, uniformly mixing 15% of acrylic acid, 21% of methyl methacrylate, 16% of methyl acrylate, 10% of hydroxyethyl acrylate and 4% of azobisisobutyronitrile by mass percent, and then dripping into the reaction kettle, wherein the dripping time is controlled to be 3 hours, the reaction is continued for 3.5 hours after the dripping is finished, the stirring speed is controlled to be 350r/min during the reaction process, and the heating temperature is controlled to be 77 ℃; filtering and drying after the reaction is finished to obtain the epoxy resin modified waterborne acrylic resin;
uniformly mixing the acrylic resin, cellulose, polyvinylpyrrolidone, diethylene glycol monobutyl ether and white water prevention liquid, stirring and dissolving to prepare the varnish;
s03, preparing the high-temperature water-based high-hiding white ink:
and (3) uniformly mixing the glass-based glaze prepared in the step S01, the varnish prepared in the step S02 and the titanium dioxide according to the mass percentage of 51.6%, 22.0% and 26.4%, then carrying out ball milling for 8 hours by using zirconium beads, wherein the bead-to-material ratio in the ball milling process is 2:1, and after the ball milling is finished, sieving by using a 1000-mesh sieve to prepare the high-temperature water-based high-coverage white ink.
Example 3
S01, preparing the glass-based glaze:
the glass-based glaze comprises the following components in percentage by mass:
15.2% of sodium borate, 40.0% of silicon oxide, 20.0% of zinc oxide, 1.0% of potassium carbonate, 8.5% of sodium carbonate, 7.8% of lithium carbonate, 2.0% of silica fume, 2.0% of titanium dioxide, 3.0% of tin oxide and 0.5% of potassium feldspar;
the raw materials in the glass-based glaze are uniformly mixed and then melted at the temperature of 1000 ℃, and after the raw materials are melted, water quenching, water grinding, filter pressing, drying and sieving are sequentially carried out to prepare the glass-based glaze. The water milling time is 20 hours, the bead material water ratio is 3:1:1, the bead size ratio is large: medium: small =1:1:3, the mixture is filtered by a 500-mesh vibrating screen and ground into slurry, and then the slurry is filtered by a filter press to remove water and dried, and the dried slurry is screened by a 500-mesh screen to prepare glass-based glaze;
s02, preparing the varnish:
the ink mixing oil comprises the following components in percentage by mass:
1.0% of acrylic resin, 5.0% of cellulose, 1.0% of polyvinylpyrrolidone, 76.5% of diethylene glycol monobutyl ether and 16.5% of white water prevention;
the acrylic resin is waterborne acrylic resin modified by epoxy resin, and the synthetic method comprises the following steps: adding 25 mass percent of ethyl acetate and 9 mass percent of epoxy resin into a reaction kettle provided with a stirring device, uniformly mixing 13 mass percent of acrylic acid, 24 mass percent of methyl methacrylate, 16 mass percent of methyl acrylate, 9 mass percent of hydroxyethyl acrylate and 4 mass percent of azobisisobutyronitrile, then dripping into the reaction kettle, controlling the dripping time to be 3 hours, continuing to react for 3.5 hours after finishing dripping, controlling the stirring speed to be 350r/min and the heating temperature to be 77 ℃ in the reaction process; filtering and drying after the reaction is finished to obtain the epoxy resin modified waterborne acrylic resin;
uniformly mixing the acrylic resin, cellulose, polyvinylpyrrolidone, diethylene glycol monobutyl ether and white water prevention liquid, stirring and dissolving to prepare the varnish;
s03, preparing the high-temperature water-based high-hiding white ink:
and (3) uniformly mixing the glass-based glaze prepared in the step S01, the varnish prepared in the step S02 and the titanium dioxide according to the mass percentage of 40.2%, 30.8% and 29.0%, then carrying out ball milling for 8 hours by using zirconium beads, wherein the bead-to-material ratio in the ball milling process is 2:1, and after the ball milling is finished, sieving by using a 1000-mesh sieve to prepare the high-temperature water-based high-coverage white ink.
Example 4
S01, preparing the glass-based glaze:
the glass-based glaze comprises the following components in percentage by mass:
15.2% of sodium borate, 38.0% of silicon oxide, 20.0% of zinc oxide, 4.0% of potassium carbonate, 8.5% of sodium carbonate, 7.8% of lithium carbonate, 2.0% of silica fume, 2.0% of titanium dioxide, 2.0% of tin oxide and 0.5% of potassium feldspar;
the raw materials in the glass-based glaze are uniformly mixed and then melted at the temperature of 1000 ℃, and after the raw materials are melted, water quenching, water grinding, filter pressing, drying and sieving are sequentially carried out to prepare the glass-based glaze. The water milling time is 20 hours, the bead material water ratio is 3:1:1, the bead size ratio is large: medium: small =1:1:3, the mixture is filtered by a 500-mesh vibrating screen and ground into slurry, and then the slurry is filtered by a filter press to remove water and dried, and the dried slurry is screened by a 500-mesh screen to prepare glass-based glaze;
s02, preparing the varnish:
the ink mixing oil comprises the following components in percentage by mass:
1.0% of acrylic resin, 10.0% of cellulose, 2.0% of polyvinylpyrrolidone, 76.5% of diethylene glycol monobutyl ether and 10.5% of white water prevention;
the acrylic resin is waterborne acrylic resin modified by epoxy resin, and the synthetic method comprises the following steps: adding 23% of ethyl acetate and 7% of epoxy resin by mass percent into a reaction kettle provided with a stirring device, uniformly mixing 15% of acrylic acid, 26% of methyl methacrylate, 15% of methyl acrylate, 9% of hydroxyethyl acrylate and 5% of azobisisobutyronitrile by mass percent, and then dripping into the reaction kettle, wherein the dripping time is controlled to be 3 hours, the reaction is continued for 3.5 hours after the dripping is finished, the stirring speed is controlled to be 350r/min during the reaction process, and the heating temperature is controlled to be 77 ℃; filtering and drying after the reaction is finished to obtain the epoxy resin modified waterborne acrylic resin;
uniformly mixing the acrylic resin, cellulose, polyvinylpyrrolidone, diethylene glycol monobutyl ether and white water prevention liquid, stirring and dissolving to prepare the varnish;
s03, preparing the high-temperature water-based high-hiding white ink:
and (3) uniformly mixing the glass-based glaze prepared in the step S01, the varnish prepared in the step S02 and the titanium dioxide according to the mass percentage of 42.0%, 32.0% and 26.0%, then carrying out ball milling for 8 hours by using zirconium beads, wherein the bead-to-material ratio in the ball milling process is 2:1, and after the ball milling is finished, sieving by using a 1000-mesh sieve to prepare the high-temperature water-based high-coverage white ink.
Examples 5 to 20
Examples 5-20 differ from example 1 in that: the mass percentages of the glass-based glaze, the varnish and the titanium dioxide are different, the mass percentages of the components in the glass-based glaze and the varnish are also different, and the mass percentages of the preparation raw materials of the acrylic resin in the varnish are different.
In the examples 1-20, the mass percentages of the glass-based glaze, the ink-mixing oil and the titanium dioxide in the high-temperature water-based high-coverage white ink are as follows:
in examples 1 to 20, the glass-based glaze comprises the following components in percentage by mass:
the ink-regulating oil in the examples 1 to 20 comprises the following components in percentage by mass:
the preparation raw materials of the acrylic resin in the varnish in the embodiments 1 to 20 have the following mass percentages:
the application method of the high-temperature water-based high-hiding white ink in the embodiment comprises the following steps: using a 250-mesh screen plate for printing, baking for 3 minutes at 170 ℃, and tempering after surface drying, wherein the tempering temperature is 700 ℃.
The ink coatings in the examples are respectively subjected to an adhesion test, a paint film hardness test and a paint film acid and alkali resistance test according to the test methods of GB/T1720 and 1979 paint film adhesion determination method, GB/T6739 and 1996 paint film hardness determination method according to a pencil method, and GB/T9247 and 1988 test methods for testing liquid medium resistance of paint and varnish, wherein the test results are as follows:
and in the acid and alkali resistance test, the test piece is soaked in a hydrochloric acid solution with the mass percent of 5% and a sodium hydroxide solution with the mass percent of 5%, and the soaking time is 24 hours.
The adhesion test result is qualified, that is, the adhesion at the position of the scratch at 7 is all 1 grade.
The embodiment shows that the ink coating has good adhesion and strong acid and alkali corrosion resistance.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention, and these modifications or equivalent substitutions cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A high-temperature water-based high-hiding white ink is characterized in that: the composite material comprises the following components in percentage by mass:
40-60% of glass-based glaze
15 to 35 percent of varnish
15 to 35 percent of titanium dioxide
The glass-based glaze comprises the following components in percentage by mass:
sodium borate 15-30%
20 to 40 percent of silicon oxide
5 to 20 percent of zinc oxide
1 to 10 percent of potassium carbonate
2 to 15 percent of sodium carbonate
2 to 15 percent of lithium carbonate
1 to 10 percent of silicon lime
0.5 to 8 percent of titanium dioxide
0.5 to 8 percent of tin oxide
1 to 10 percent of potash feldspar
The ink mixing oil comprises the following components in percentage by mass:
1 to 10 percent of acrylic resin
1 to 10 percent of cellulose
Polyvinyl pyrrolidone 1-15%
Diethylene glycol butyl ether 60-80%
White water proof 5% -20%
The acrylic resin in the varnish is water-based acrylic resin;
the preparation method of the water-based acrylic resin comprises the following steps: adding 18-25% of solvent and 5-10% of epoxy resin by mass percent into a reaction kettle provided with a stirring device, uniformly mixing 3-15% of acrylic acid, 20-30% of methyl methacrylate, 8-16% of methyl acrylate, 6-15% of hydroxyethyl acrylate and 1-5% of initiator by mass percent, and then dripping into the reaction kettle, controlling the dripping time to be 2.5-3.5h, continuing to react for 3-4h after finishing dripping, controlling the stirring speed to be 500r/min during the reaction process, and controlling the heating temperature to be the reflux temperature of the solvent; filtering and drying after the reaction is finished to obtain the water-based acrylic resin;
the solvent is one or more of ethyl acetate, propyl acetate and butyl acetate;
the initiator is one or more of azodiisobutyronitrile, dibenzoyl peroxide and tert-butyl peroxybenzoate.
2. The high-temperature aqueous high hiding white ink of claim 1, wherein: the granularity of the high-temperature water-based high-hiding white ink particles is 5-13 mu m.
3. The high-temperature aqueous high hiding white ink of claim 1, wherein: the composite material comprises the following components in percentage by mass:
45 to 55 percent of glass-based glaze
20 to 30 percent of varnish
20 to 30 percent of titanium dioxide
The glass-based glaze comprises the following components in percentage by mass:
sodium borate 20% -28
25 to 35 percent of silicon oxide
10 to 15 percent of zinc oxide
2 to 8 percent of potassium carbonate
5 to 10 percent of sodium carbonate
5 to 10 percent of lithium carbonate
2 to 8 percent of silicon lime
1 to 5 percent of titanium dioxide
1 to 5 percent of tin oxide
2 to 8 percent of potash feldspar
The ink mixing oil comprises the following components in percentage by mass:
2 to 6 percent of acrylic resin
2 to 8 percent of cellulose
2 to 10 percent of polyvinylpyrrolidone
Diethylene glycol butyl ether 65-75%
White water prevention 10% -18%.
4. A method for preparing the high-temperature aqueous high-hiding white ink as claimed in any one of claims 1 to 3, wherein: the method comprises the following steps:
s01, preparing the glass-based glaze:
uniformly mixing all raw materials in the glass-based glaze, melting at the temperature of 1000-1200 ℃, and sequentially carrying out water quenching, water grinding, filter pressing, drying and sieving after melting to prepare the glass-based glaze;
s02, preparing the varnish:
uniformly mixing all the raw materials in the varnish, stirring and dissolving to prepare varnish;
s03, preparing the high-temperature water-based high-hiding white ink:
and (3) uniformly mixing the glass-based glaze prepared in the step S01, the varnish prepared in the step S02 and titanium dioxide, and performing ball milling on the mixture for 7 to 9 hours by using zirconium beads to prepare the high-temperature water-based high-coverage white ink.
5. The method for preparing the high-temperature aqueous high-hiding white ink as claimed in claim 4, wherein: the water milling time in the S01 is 20-24 h; the granularity of the glass-based glaze particles in S01 is 10-28 μm.
6. A method for using the high-temperature aqueous high-hiding white ink as claimed in any one of claims 1 to 3, wherein: using 150-mesh and 250-mesh screen printing, baking for 3-5 minutes after printing, and tempering after surface drying.
7. The method for using the high-temperature water-based high-hiding white ink as claimed in claim 6, wherein: the baking temperature is 160-180 ℃.
8. The method for using the high-temperature water-based high-hiding white ink as claimed in claim 6, wherein: the toughening temperature is 680-720 ℃.
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| CN111138905A (en) * | 2018-11-05 | 2020-05-12 | 佛山市百瑞新材料技术有限公司 | Preparation method of high-covering-capacity water-based lead-free environment-friendly high-temperature glass ink |
| CN110628265B (en) * | 2019-10-14 | 2022-05-27 | 江苏拜富科技股份有限公司 | Preparation method of high-adhesion ink for photovoltaic glass coating |
| CN113636756B (en) * | 2021-06-25 | 2022-12-09 | 吴江南玻玻璃有限公司 | Water-based environment-friendly white glaze for high-reflection anti-PID photovoltaic back plate glass and preparation method thereof |
| CN113603362B (en) * | 2021-06-25 | 2022-12-09 | 吴江南玻玻璃有限公司 | Water-based environment-friendly white glaze with high adhesion and weather resistance for photovoltaic back plate glass and preparation method thereof |
| CN113512322B (en) * | 2021-06-25 | 2022-11-08 | 吴江南玻玻璃有限公司 | Environment-friendly water-based varnish for photovoltaic glass glaze and preparation method thereof |
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