CN111690292A - Touch ink for two-piece can and preparation method thereof - Google Patents
Touch ink for two-piece can and preparation method thereof Download PDFInfo
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- CN111690292A CN111690292A CN202010656267.1A CN202010656267A CN111690292A CN 111690292 A CN111690292 A CN 111690292A CN 202010656267 A CN202010656267 A CN 202010656267A CN 111690292 A CN111690292 A CN 111690292A
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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
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
- C09D11/104—Polyesters
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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
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- Engineering & Computer Science (AREA)
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- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention provides touch ink for two cans and a preparation method thereof, and relates to the technical field of ink, wherein the touch ink comprises the following raw materials: polyester resin A, polyester resin B, a touch feeling agent, a catalyst, an adhesion promoter, silicon dioxide, barium sulfate, bentonite, a pigment and a dispersing agent. The touch printing ink prepared by mixing and stirring the raw materials in modes of steps and the like has acid resistance, adhesive force and color concentration superior to those of conventional printing ink, can form the effect of uneven hand feeling by matching with water-based touch gloss oil, and can be used for the surfaces of different substrates such as paper, metal packaging and the like.
Description
Technical Field
The invention relates to the technical field of printing ink, in particular to tactile printing ink for two cans and a preparation method thereof.
Background
The two tanks are composed of tank bodies and tank covers, the sealing performance is good, the appearance is attractive, the production efficiency is high, and the product quality can be guaranteed while the raw materials are saved. Unlike the three-piece can which is printed and then made into a can, the two-piece can is usually subjected to can body forming, ironing and bottom forming before being subjected to can body surface spraying, so that the requirements on material performance, can making technology, can making equipment, coating performance and the like are high. Meanwhile, with the gradual increase of the market demand of the canned food, the requirement of people on packaging is also increased day by day, and more canned products with special functions and effects gradually enter the visual field of people, such as fluorescent effects (local luminescence under dark conditions after sunlight irradiation) and temperature change effects (local color change under freezing or heating conditions) and the like.
Chinese patent CN108641475A discloses a single-component acrylic acid modified polyester two-piece can ink and a preparation method thereof, wherein the ink comprises the following components in parts by weight: 30-50 parts of acrylic modified polyester resin, 10-15 parts of amino resin, 3-15 parts of organic solvent, 0.5-1.5 parts of catalyst, 20-45 parts of pigment and 0.5-2 parts of modified urea, and has high boiling resistance, photo-oil affinity, solid content and anti-misting performance. Chinese patent CN108059874A discloses a touch effect ink and a surface finishing process for a paper packaging box, wherein the ink comprises the following raw material components in percentage by weight: 43-53% of polyurethane resin; 15-25% of epoxy resin; 3-6% of tripropylene glycol diacrylate; 3-6% of polyethylene wax; photoinitiator TPO 1-3%; 3691-3% of a photoinitiator; 4-10% of silicon dioxide; 4-8% of talcum powder; 6-10% of bentonite. The printing ink can enable the surface of a packaging box made of paper to present a dull and dull gloss effect, and the surface of the packaging box can be touched by hands to feel fine flannelette touch feeling, so that the appearance grade of the paper packaging box can be improved, and the friction resistance of the surface of the packaging box can be enhanced. Chinese patent CN104610806B discloses a composite water-based ink modified by nano-silica and a preparation method thereof, wherein the ink comprises the following components in percentage by weight: 20-30 wt% of nano silicon dioxide modified water-based acrylic resin, 15-20 wt% of water-based polyester resin, 20-30 wt% of water, 5-15 wt% of ethanol, 10-30 wt% of pigment, 0.5-1.5 wt% of defoaming agent, 1-2 wt% of dispersing agent, 1-2 wt% of flatting agent and 1-2 wt% of buffering agent. The finally prepared water-based ink has excellent wear resistance and chemical resistance. However, the inks in the above patents are mainly improved only in terms of abrasion resistance, chemical resistance and touch, and cannot exhibit special effects meeting the current market demands, or have the problems of poor physical and chemical properties, low color density and the like.
In order to meet the demand of the touch ink market and solve the problems that various performances are poor and the effect is difficult to meet the market in the prior art, it is necessary to find a touch ink with a special effect and excellent performances.
Disclosure of Invention
The invention provides the touch ink for the two cans and the preparation method thereof, aiming at the problems in the prior art, the touch ink prepared by reasonably selecting and proportioning raw materials has acid resistance, adhesive force and color concentration superior to those of conventional ink, can form a touch effect by matching with water-based touch gloss oil, can form different effects such as water drop shape and explosion shape according to the selection of a touch agent in a product, and can be further applied to the surfaces of different base materials such as paper, metal packaging and the like.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention provides touch ink for two cans, which comprises the following raw materials: polyester resin A, polyester resin B, a touch feeling agent, a catalyst, an adhesion promoter, silicon dioxide, barium sulfate, bentonite, a pigment and a dispersing agent.
Further, the touch ink comprises the following raw materials in parts by weight: 38-64 parts of polyester resin A, 8-22 parts of polyester resin B, 1-11 parts of touch feeling agent, 0.8-4 parts of catalyst, 0.8-6 parts of adhesion promoter, 0.8-5 parts of silicon dioxide, 0.7-4 parts of barium sulfate, 0.6-7 parts of bentonite, 20-55 parts of pigment and 0.1-1.2 parts of dispersing agent.
Preferably, the touch ink comprises the following raw materials in parts by weight: 40-60 parts of polyester resin A, 10-20 parts of polyester resin B, 2-10 parts of a touch feeling agent, 1-3 parts of a catalyst, 1-5 parts of an adhesion promoter, 1-3 parts of silicon dioxide, 1-3 parts of barium sulfate, 1-5 parts of bentonite, 24-50 parts of a pigment and 0.1-1 part of a dispersing agent.
Further preferably, the touch ink comprises the following raw materials in parts by weight: 60 parts of polyester resin A, 15 parts of polyester resin B, 4 parts of a touch feeling agent, 1 part of catalyst, 3 parts of adhesion promoter, 2 parts of silicon dioxide, 2 parts of barium sulfate, 3 parts of bentonite, 49 parts of pigment and 0.2 part of dispersant.
Further, the polyester resin A comprises acrylic modified polyester resin and/or organic silicon modified water-based polyester resin. Preferably, the polyester resin A is acrylic modified polyester resin and organic silicon modified water-based polyester resin with the weight ratio of 1-2:1, and more preferably the acrylic modified polyester resin and the organic silicon modified water-based polyester resin with the weight ratio of 1: 1. Further preferred are YG-SP875 water-based acrylic modified saturated polyester resin and Japanese shin KR-5230 silicone polyester resin produced by Beijing sunshine Virginian at a weight ratio of 1: 1.
Further, the polyester resin B includes a water-based polyester resin. Preferably SK9080D water-based polyester resin from Shanghai commander chemical Co., Ltd.
Further, the weight ratio of the polyester resin A to the polyester resin B is 4-6: 1-2. Preferably, the weight ratio of the polyester resin a and the polyester resin B is 4: 1.
Further, the haptic agent includes polyether modified silicone and/or polyester modified silicone; the catalyst comprises one or more of phosphoric acid, blocked sulfonic acid and xylene sulfonic acid; the adhesion promoter comprises epoxy phosphate; the dispersant comprises an anionic dispersant and/or a nonionic dispersant; the pigment includes one or more of pigment-red, pigment-yellow, pigment blue and pigment violet.
The invention also provides a preparation method of the touch ink, which is characterized by comprising the following steps: the preparation method comprises the following preparation steps:
(1) uniformly stirring polyester resin A, polyester resin B, a touch agent, a catalyst and an adhesion promoter to obtain a mixture 1;
(2) adding silicon dioxide, barium sulfate and bentonite into the mixture 1, dispersing at a high speed, and uniformly mixing to ensure that the fineness is below 5 mu m to obtain a mixture 2;
(3) adding pigment and dispersant into the mixture 2, dispersing at high speed, mixing, and grinding to fineness below 5 μm.
Further, the grinding temperature in the step (3) is controlled below 40 ℃.
The technical effects obtained by the invention are as follows:
1. the touch ink disclosed by the invention can provide extremely low surface tension, the tension is less than 20 dynes, the surface tension difference is formed between the touch ink and water-based touch gloss oil, and the touch ink and the water-based touch gloss oil are matched for use during construction to form a touch effect; the change of the touch effect is determined by the magnitude of the surface tension difference, and the larger the difference is, the more obvious the touch effect is, and the explosion effect appears; the smaller the difference, the weaker the haptic effect. The touch ink disclosed by the invention can form an uneven hand feeling effect, called a touch effect, by matching with the water-based touch gloss oil; according to the selection of the tactility agent in the product, different effects such as water drop shape, pattern shape, explosion shape and the like can be formed; can be used on the surfaces of different base materials such as paper, metal packaging and the like;
2. the touch ink disclosed by the invention is superior to conventional ink in acid resistance and adhesive force through reasonable selection and proportioning of raw materials, and does not fade, discolor or fall off after being boiled in 2% citric acid solution for 30 min; generally, the addition amount of the pigment of a conventional ink product can only reach 22-25%, the continuous use amount of the pigment is increased continuously, and the situations of powder falling, uneven resin coating and the like can occur; according to the formula of the invention, by selecting the polyester resin A/B, the additive amount of the pigment can reach more than 35%, the color concentration of the product is greatly improved, and the consumption of the printing ink can be reduced by more than 40%.
Detailed Description
It is to be noted that the water-based polyester resin used in the present invention is SK9080D water-based polyester resin of shanghai commandaceae chemical limited, and the silicone-modified water-based polyester resin is japanese shin KR-5230 silicone polyester resin; the acrylic modified polyester resin is YG-SP875 waterborne acrylic modified saturated polyester resin produced by Beijing sunshine Vigorean.
The other raw materials are common commercial products, and thus the sources thereof are not particularly limited.
Example 1
The tactile ink for the two-piece can comprises the following raw materials in parts by weight: 38 parts of polyester resin A, 8 parts of polyester resin B, 1 part of touch feeling agent, 0.8 part of catalyst, 0.8 part of adhesion promoter, 0.8 part of silicon dioxide, 0.7 part of barium sulfate, 0.6 part of bentonite, 20 parts of pigment and 0.1 part of dispersant.
The polyester resin A is acrylic acid modified polyester resin, the polyester resin B is water-based polyester resin, the touch agent is polyether modified organic silicon, the catalyst is phosphoric acid, the adhesion promoter is epoxy phosphate, the pigment is pigment-red, and the dispersing agent is an anionic dispersing agent.
Example 2
The tactile ink for the two-piece can comprises the following raw materials in parts by weight: 64 parts of polyester resin A, 22 parts of polyester resin B, 11 parts of a touch feeling agent, 4 parts of a catalyst, 6 parts of an adhesion promoter, 5 parts of silicon dioxide, 4 parts of barium sulfate, 7 parts of bentonite, 55 parts of pigment and 1.2 parts of a dispersing agent.
The polyester resin A is organic silicon modified water-based polyester resin, the polyester resin B is water-based polyester resin, the touch feeling agent is polyester modified organic silicon, the catalyst is blocked sulfonic acid, the adhesion promoter is epoxy phosphate, the pigment is pigment-yellow, and the dispersing agent is a non-ionic dispersing agent.
Example 3
The tactile ink for the two-piece can comprises the following raw materials in parts by weight: 60 parts of polyester resin A, 15 parts of polyester resin B, 4 parts of a touch feeling agent, 1 part of catalyst, 3 parts of adhesion promoter, 2 parts of silicon dioxide, 2 parts of barium sulfate, 3 parts of bentonite, 49 parts of pigment and 0.2 part of dispersant.
The polyester resin A is acrylic acid modified polyester resin and organic silicon modified water-based polyester resin with the weight ratio of 1:1, the polyester resin B is water-based polyester resin, the touch feeling agent is polyether modified organic silicon, the catalyst is xylene sulfonic acid, the adhesion promoter is epoxy phosphate, the pigment is pigment-blue, and the dispersing agent is an anionic dispersing agent.
Example 4
The tactile ink for the two-piece can comprises the following raw materials in parts by weight: 40 parts of polyester resin A, 10 parts of polyester resin B, 2 parts of a touch feeling agent, 1 part of a catalyst, 1 part of an adhesion promoter, 1 part of silicon dioxide, 1 part of barium sulfate, 1 part of bentonite, 24 parts of pigment and 0.1 part of a dispersing agent.
The polyester resin A is acrylic acid modified polyester resin and organic silicon modified water-based polyester resin with the weight ratio of 1:1, the polyester resin B is water-based polyester resin, the touch feeling agent is polyester modified organic silicon, the catalyst is phosphoric acid, the adhesion promoter is epoxy phosphate, the pigment is pigment-violet, and the dispersing agent is a non-ionic dispersing agent.
Example 5
The tactile ink for the two-piece can comprises the following raw materials in parts by weight: 60 parts of polyester resin A, 20 parts of polyester resin B, 10 parts of a touch feeling agent, 3 parts of a catalyst, 5 parts of an adhesion promoter, 3 parts of silicon dioxide, 3 parts of barium sulfate, 5 parts of bentonite, 50 parts of pigment and 1 part of a dispersing agent.
The polyester resin A is acrylic acid modified polyester resin and organic silicon modified water-based polyester resin in a weight ratio, the polyester resin B is water-based polyester resin, the touch feeling agent is polyether modified organic silicon, the catalyst is closed sulfonic acid, the adhesion promoter is epoxy phosphate, the pigment is pigment-red, and the dispersing agent is an anionic dispersing agent.
The preparation method of the tactile inks of the above examples 1 to 5 was the following steps:
(1) uniformly stirring polyester resin A, polyester resin B, a touch agent, a catalyst and an adhesion promoter to obtain a mixture 1;
(2) adding silicon dioxide, barium sulfate and bentonite into the mixture 1, dispersing at a high speed, and uniformly mixing to ensure that the fineness is below 5 mu m to obtain a mixture 2;
(3) adding pigment and dispersant into the mixture 2, dispersing at high speed, mixing, grinding to fineness below 5 μm, and controlling grinding temperature below 40 deg.C.
Comparative example 1
The tactile ink differs from the tactile ink of example 3 only in that the two-piece can touch ink comprises the following raw materials in parts by weight: 35 parts of polyester resin A, 25 parts of polyester resin B, 0.8 part of touch feeling agent, 5 parts of catalyst, 0.5 part of adhesion promoter, 6 parts of silicon dioxide, 0.6 part of barium sulfate, 8 parts of bentonite, 18 parts of pigment and 1.5 parts of dispersing agent.
Comparative example 2
The tactile ink differs from the tactile ink of example 3 only in that the two-piece can touch ink comprises the following raw materials in parts by weight: 66 parts of polyester resin A, 5 parts of polyester resin B, 12 parts of a touch feeling agent, 0.5 part of a catalyst, 7 parts of an adhesion promoter, 0.5 part of silicon dioxide, 4.5 parts of barium sulfate, 0.5 part of bentonite, 56 parts of pigment and 0.08 part of a dispersing agent.
Comparative example 3
The only difference from example 3 is that the weight ratio of polyester resin a and polyester resin B was 1:1 (the total weight of polyester resin a and polyester resin B was identical to example 3).
Comparative example 4
The only difference from example 3 is that polyester resin a is an acrylic modified polyester resin and a silicone modified waterborne polyester resin in a weight ratio of 3:1, and polyester resin B is a waterborne polyester resin.
Comparative example 5
The only difference from example 3 is that polyester resin A is not contained (the total weight of polyester resin B is equal to the sum of polyester resin A and polyester resin B in example 3).
Comparative example 6
The only difference from example 3 is that polyester resin B is not contained (the total weight of polyester resin A is equal to the sum of polyester resin A and polyester resin B in example 3).
First, the basic performance test of the touch ink of the invention
The base properties of the touch inks of examples 1 to 5 and comparative examples 1 to 6 were tested by the following test methods:
and (3) rolling the touch ink on the surfaces of the two tank bodies by using a roller, drying and placing for later use.
(1) And (3) testing the adhesive force: drawing a cross grid shape on the surface of the touch ink coating, wherein the total number of the cross grids is 100 (1cm multiplied by 1cm), enabling the cut to reach the substrate, slightly sweeping the substrate for several times along each diagonal line of the cross grids by using a soft brush, then sweeping the substrate forwards and backwards for several times, observing the conditions of respective areas by using a 3M adhesive tape, and counting the percentage of the area which does not fall off in the total area;
(2) and (3) testing the acid resistance and high-temperature cooking resistance: boiling the tank body in a citric acid solution with the temperature of 121 ℃ and the concentration of 2% for 30min, and observing the condition of the ink on the surface of the tank body;
the test results and the amount of pigment added are summarized in Table 1.
TABLE 1
| Examples of the invention | Acid resistance | Adhesion (%) | Pigment addition amount (%) |
| Example 1 | No blushing and no color change | 100 | 28.25 |
| Example 2 | No blushing and no color change | 100 | 28.95 |
| Example 3 | No blushing and no color change | 100 | 35.20 |
| Example 4 | No blushing and no color change | 100 | 29.59 |
| Example 5 | No blushing and no color change | 100 | 31.25 |
| Comparative example 1 | Whitish and discolored | 85 | 17.93 |
| Comparative example 2 | Whitish and discolored | 80 | 36.82 |
| Comparative example 3 | No blushing and no color change | 79 | 35.20 |
| Comparative example 4 | No blushing and no color change | 83 | 35.20 |
| Comparative example 5 | No blushing and no color change | 78 | 35.20 |
| Comparative example 6 | No blushing and no color change | 73 | 35.20 |
Generally, the proportion of the pigment in the ink is increased, so that the adhesive force, viscosity and transfer of the ink are influenced, the construction effect is poor, the adhesive force is possibly deteriorated when the addition amount of the pigment is 20-25% in the conventional ink, and the additive amount of the pigment can reach 28-35% and the adhesive force is good by selecting the main body resin. As can be seen from Table 1, the ink of the invention has high acid resistance and adhesion, the essential oil does not turn white or discolor after being soaked in high-temperature acid solution, the adhesion can reach 100%, the ink part in the comparative example turns white or discolors, and the adhesion is lower than that of the ink in the example 3, so that the invention can realize the increase of the pigment ratio without influencing the application property of the coating by optimizing the resin.
Second, visual effect test
The touch ink disclosed by the invention can form an uneven hand feeling effect, called a touch effect, by matching with the water-based touch gloss oil; according to the selection of the tactility agent in the product, different effects such as water drop shape, explosion shape and the like can be formed. The touch ink in each example was roll-coated on the surfaces of two cans and then dried, the tension was measured, and then the touch gloss oil was roll-coated on the surface of the can and dried again, and the final effect was observed to obtain table 2, wherein the aqueous touch gloss oil was a common commercially available aqueous touch gloss oil (Bacocoat 7060, a chemical industry of shanghai paoba).
TABLE 2
| Examples of the invention | Tension (dyne) | Effect |
| Example 1 | 18 | Forming better uneven hand feeling effect |
| Example 2 | 17 | Forming better uneven hand feeling effect |
| Example 3 | 12 | Forming better uneven hand feeling effect |
| Example 4 | 13 | Forming better uneven hand feeling effect |
| Example 5 | 15 | Forming better uneven hand feeling effect |
| Comparative example 1 | 23 | The effect of uneven hand feeling is not obvious |
| Comparative example 2 | 24 | The effect of uneven hand feeling is not obvious |
| Comparative example 3 | 19 | Forming better uneven hand feeling effect |
| Comparative example 4 | 15 | Forming better uneven hand feeling effect |
| Comparative example 5 | 21 | Forming slight unevenness of touch |
| Comparative example 6 | 20 | Forming slight unevenness of touch |
Generally, the touch ink and the water-based touch gloss oil form a poor surface tension, the touch ink and the water-based touch gloss oil are matched to form a touch effect during construction, the change of the touch effect is determined by the difference value of the surface tension, the larger the difference value is, the more obvious the touch effect is, and the explosion effect appears; the smaller the difference, the weaker the haptic effect; the touch ink can provide extremely low surface tension (the tension is less than 20 dynes), so that the touch ink has larger tension difference with the touch gloss oil, shows better touch effect and can form better effect of uneven hand feeling.
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A two sense of touch printing ink for jar which characterized in that: the method comprises the following raw materials: polyester resin A, polyester resin B, a touch feeling agent, a catalyst, an adhesion promoter, silicon dioxide, barium sulfate, bentonite, a pigment and a dispersing agent.
2. A touch ink as claimed in claim 1, wherein: the composite material comprises the following raw materials in parts by weight: 38-64 parts of polyester resin A, 8-22 parts of polyester resin B, 1-11 parts of touch feeling agent, 0.8-4 parts of catalyst, 0.8-6 parts of adhesion promoter, 0.8-5 parts of silicon dioxide, 0.7-4 parts of barium sulfate, 0.6-7 parts of bentonite, 20-55 parts of pigment and 0.1-1.2 parts of dispersing agent.
3. A touch ink as claimed in claim 2, wherein: the composite material comprises the following raw materials in parts by weight: 40-60 parts of polyester resin A, 10-20 parts of polyester resin B, 2-10 parts of touch feeling agent, 1-3 parts of catalyst, 1-5 parts of adhesion promoter, 1-3 parts of silicon dioxide, 1-3 parts of barium sulfate, 1-5 parts of bentonite, 24-50 parts of pigment and 0.1-1 part of dispersing agent.
4. A touch ink as claimed in claim 1, wherein: the polyester resin A is acrylic acid modified polyester resin and/or organic silicon modified water-based polyester resin.
5. A touch ink as claimed in claim 1, wherein: the polyester resin B comprises a water-based polyester resin.
6. A touch ink as claimed in claim 1, wherein: the weight ratio of the polyester resin A to the polyester resin B is 4-6: 1-2.
7. A touch ink as claimed in claim 1, wherein: the tactility agent comprises polyether modified silicone and/or polyester modified silicone; the catalyst comprises one or more of phosphoric acid, blocked sulfonic acid and xylene sulfonic acid; the adhesion promoter includes an epoxy phosphate ester.
8. A touch ink as claimed in claim 1, wherein: the dispersant comprises an anionic dispersant and/or a nonionic dispersant; the pigment includes one or more of pigment-red, pigment-yellow, pigment blue and pigment violet.
9. A method of preparing a touch ink as claimed in any one of claims 1 to 8 wherein: the preparation method comprises the following preparation steps:
(1) uniformly stirring polyester resin A, polyester resin B, a touch agent, a catalyst and an adhesion promoter to obtain a mixture 1;
(2) adding silicon dioxide, barium sulfate and bentonite into the mixture 1, dispersing at a high speed, and uniformly mixing to ensure that the fineness is below 5 mu m to obtain a mixture 2;
(3) adding pigment and dispersant into the mixture 2, dispersing at high speed, mixing, and grinding to fineness below 5 μm.
10. The method of claim 9, wherein: and (4) controlling the grinding temperature in the step (3) to be below 40 ℃.
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| CN202010656267.1A CN111690292A (en) | 2020-07-09 | 2020-07-09 | Touch ink for two-piece can and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010656267.1A CN111690292A (en) | 2020-07-09 | 2020-07-09 | Touch ink for two-piece can and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116239914A (en) * | 2022-09-09 | 2023-06-09 | 广东东溢新材料科技有限公司 | Water-based white ink and preparation method and application thereof |
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| CN116239914A (en) * | 2022-09-09 | 2023-06-09 | 广东东溢新材料科技有限公司 | Water-based white ink and preparation method and application thereof |
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Application publication date: 20200922 |