CN112759975A - Offset printing ink and preparation method thereof - Google Patents
Offset printing ink and preparation method thereof Download PDFInfo
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- CN112759975A CN112759975A CN202110094921.9A CN202110094921A CN112759975A CN 112759975 A CN112759975 A CN 112759975A CN 202110094921 A CN202110094921 A CN 202110094921A CN 112759975 A CN112759975 A CN 112759975A
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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
- C09D11/103—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds of aldehydes, e.g. phenol-formaldehyde resins
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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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- 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
- C09D11/08—Printing inks based on natural resins
Abstract
The invention relates to the technical field of printing, and particularly discloses offset printing ink and a preparation method thereof, wherein the offset printing ink is prepared by taking pigment, binder, linseed oil, tetradecanol, an anti-wear agent, methyl cellulose and the like as raw materials; the wear-resistant adhesive is prepared by heating and mixing oil-containing resin, calcium chloride, white graphite, pumice, microcrystalline wax and a silane coupling agent serving as raw materials, and can effectively improve the wear resistance of the offset printing ink by matching the white graphite, the pumice, the microcrystalline wax and the silane coupling agent. The preparation method provided by the embodiment of the invention is simple, solves the problem of insufficient wear resistance of the existing offset printing ink, and has wide market prospect.
Description
Technical Field
The invention relates to the technical field of printing, in particular to offset printing ink and a preparation method thereof.
Background
With the development of printing technology, the variety of ink is increasing. At present, common inks are classified into relief printing inks, lithographic printing inks, gravure printing inks, stencil printing inks, special printing inks, and the like. Among them, the offset ink is one of lithographic inks, which is suitable for printing by various offset printing presses. The quality of the offset printing ink directly influences the service performance of offset printing products and has important significance for promoting human civilization.
At present, most of the existing offset printing ink consists of a binder, a pigment, a filler, an auxiliary agent, a solvent and the like. However, the existing offset printing ink has the following defects in actual use: the existing offset printing ink has the problem of insufficient wear resistance, so that the service life of offset printing products is shortened.
Disclosure of Invention
An object of an embodiment of the present invention is to provide an offset printing ink, so as to solve the problem of insufficient wear resistance of the existing offset printing ink proposed in the above background art.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
the offset printing ink comprises the following raw materials in parts by weight: 2-20 parts of pigment, 40-60 parts of binder, 4-12 parts of linseed oil, 1-3 parts of tetradecanol, 5-8 parts of wear-resisting agent and 0.1-1.6 parts of methyl cellulose; the wear-resisting agent is prepared by heating and mixing oleoresin, calcium chloride, white graphite, pumice, microcrystalline wax and a silane coupling agent serving as raw materials.
As a further scheme of the invention: the preparation method of the wear-resistant agent comprises the steps of weighing the oil-containing resin, heating to the temperature of 120-160 ℃, adding the silane coupling agent, uniformly mixing, then adding the calcium chloride, the white graphite, the pumice and the microcrystalline wax, and uniformly mixing through ultrasonic dispersion to obtain the wear-resistant agent.
Another object of an embodiment of the present invention is to provide a method for preparing offset ink, including the following steps: weighing the bonding material according to the weight parts, heating, adding linseed oil, uniformly mixing, sequentially adding tetradecanol, a wear-resisting agent and methyl cellulose, heating and uniformly mixing, adding pigment for color matching, and uniformly grinding to obtain the offset printing ink.
Another object of an embodiment of the present invention is to provide a flexographic ink prepared by the above method for preparing a flexographic ink.
Compared with the prior art, the invention has the beneficial effects that:
in the embodiment of the invention, the offset printing ink is prepared by taking pigment, binder, linseed oil, tetradecanol, wear-resisting agent, methyl cellulose and the like as raw materials; the wear-resistant adhesive is prepared by heating and mixing oil-containing resin, calcium chloride, white graphite, pumice, microcrystalline wax and a silane coupling agent serving as raw materials, and can effectively improve the wear resistance of the offset printing ink by matching the white graphite, the pumice, the microcrystalline wax and the silane coupling agent. The preparation method provided by the embodiment of the invention is simple, solves the problem of insufficient wear resistance of the existing offset printing ink, and has wide market prospect.
Detailed Description
The present invention will be described in further detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
The offset printing ink provided by the embodiment of the invention comprises the following raw materials in parts by weight: 2-20 parts of pigment, 40-60 parts of binder, 4-12 parts of linseed oil, 1-3 parts of tetradecanol, 5-8 parts of wear-resisting agent and 0.1-1.6 parts of methyl cellulose; the wear-resisting agent is prepared by heating and mixing oleoresin, calcium chloride, white graphite, pumice, microcrystalline wax and a silane coupling agent serving as raw materials.
As another preferred embodiment of the present invention, the microcrystalline wax (Ceresene wax), also called ceresin wax, is a white amorphous solid wax which is mainly composed of C31-70 branched saturated hydrocarbons and contains a small amount of cyclic, straight-chain hydrocarbons, and is odorless and tasteless.
As another preferred embodiment of the present invention, the offset ink comprises the following raw materials in parts by weight: 8-16 parts of pigment, 44-56 parts of binder, 6-10 parts of linseed oil, 1.5-2.5 parts of tetradecanol, 6-7 parts of anti-wear agent and 0.4-0.8 part of methyl cellulose.
In another preferred embodiment of the present invention, the pigment may be a commercially available pigment product for ink, for example, black, sky blue, primary color red, primary color yellow, or white pigment, and the specific type is selected according to the need, but not limited thereto, as long as the offset ink can be a basic color such as black, sky blue, primary color red, primary color yellow, or white, or a combined color of any plural kinds of black, sky blue, primary color red, primary color yellow, or white.
As another preferred embodiment of the present invention, the oleoresin is a mixture of natural oil and resin extracted from various plants such as pine and fir, and is selected according to the need, and is not limited herein.
As another preferred embodiment of the present invention, the binder at least comprises a phenolic resin, a melamine copolymer resin and a rosin, and the mass ratio of the phenolic resin, the melamine copolymer resin and the rosin is 0.1-0.6:1-4: 0.6-1.2. Because the binder at least comprises phenolic resin, melamine copolymer resin and rosin, and forms uniform materials through multiple compositions, compared with common offset printing ink only adopting phenolic resin, the dispersion uniformity of the wear-resistant agent in the offset printing ink can be effectively improved, the uniformity of the offset printing ink is not influenced while the wear resistance is ensured, the printing effect is ensured, and the phenomenon of flowering is not easy to occur.
In another preferred embodiment of the present invention, the mass ratio of the phenolic resin, the melamine copolymer resin and the rosin in the binder is 0.2-0.4:2-3: 1.
As another preferred embodiment of the present invention, the raw materials of the offset ink further include a proper amount of an auxiliary agent, where the auxiliary agent is at least one of a thickener, a dispersant, a drying agent, an anti-skinning agent, a stabilizer or a brightener, and the specific type and amount are selected according to requirements, and are not limited herein, and generally one fifth to one tenth of the quality of the binder of the common auxiliary agent products in ink preparation, for example, one tenth of the quality of the binder of the thickener and one tenth of the quality of the binder of the dispersant are added.
As another preferred embodiment of the present invention, the anti-wear agent comprises the following raw materials in parts by weight: 22-36 parts of oleoresin, 2-8 parts of calcium chloride, 1-3 parts of white graphite, 1-3 parts of pumice, 1-3 parts of microcrystalline wax and 32-48 parts of silane coupling agent.
As another preferred embodiment of the present invention, the calcium chloride, white graphite, pumice, and microcrystalline wax are all nano-scale, and may be commercially available products, or may be ground to a particle size of 100-800 nm by grinding.
As another preferred embodiment of the invention, the preparation method of the wear-resistant agent comprises the steps of weighing the oil-containing resin according to the proportion, heating to 160 ℃ and then adding the silane coupling agent for uniform mixing, then adding the calcium chloride, the white graphite, the pumice and the microcrystalline wax, and performing ultrasonic dispersion for uniform mixing to obtain the wear-resistant agent.
As another preferred embodiment of the present invention, in the method for preparing the anti-wear agent, the frequency of the ultrasonic dispersion is 40 to 80 kHz.
The embodiment of the invention also provides a preparation method of the offset printing ink, which comprises the following steps:
weighing the bonding material according to the weight parts, heating, adding linseed oil, uniformly mixing, sequentially adding tetradecanol, a wear-resisting agent and methyl cellulose, heating and uniformly mixing, adding pigment for color matching, and uniformly grinding to obtain the offset printing ink.
As another preferred embodiment of the present invention, in the method for preparing offset printing ink, the step of weighing the binder and heating is performed by microwave heating, and the stirring is performed continuously during the microwave heating, and the microwave power of the microwave heating is 300-.
As another preferred embodiment of the invention, the step of weighing and heating the bonding material is to add the rosin into a microwave reaction kettle, heat the rosin to be completely melted under the condition that the microwave power is 300-400W, and then add the phenolic resin and the melamine copolymer resin to heat the rosin to be uniformly mixed.
The embodiment of the invention also provides the offset printing ink prepared by the preparation method of the offset printing ink.
The technical effects of the offset ink of the present invention will be further described below by referring to specific examples.
Example 1
The offset printing ink specifically comprises the following steps:
1) respectively weighing 22kg of oleoresin, 2kg of calcium chloride, 1kg of white graphite, 1kg of pumice, 1kg of microcrystalline wax and 32kg of silane coupling agent for later use, heating the weighed oleoresin to 120 ℃, adding the silane coupling agent, uniformly mixing, adding the calcium chloride, the white graphite, the pumice and the microcrystalline wax, and uniformly mixing by ultrasonic dispersion (the frequency of ultrasonic dispersion is 40kHz) to obtain the wear-resisting agent;
2) respectively weighing 2kg of pigment, 40kg of binder, 4kg of linseed oil, 1kg of tetradecanol, 5kg of wear-resisting agent and 0.1kg of methyl cellulose for later use, wherein the binder comprises phenolic resin, melamine copolymer resin and rosin, and the mass ratio of the phenolic resin to the melamine copolymer resin to the rosin is 0.1:1: 0.6; and heating the weighed bonding material, specifically, adding rosin into a microwave reaction kettle, heating to be completely melted under the condition that the microwave power is 300W, adding phenolic resin and melamine copolymer resin, heating to be uniformly mixed, adding linseed oil, uniformly mixing, sequentially adding tetradecanol, a wear-resisting agent, methylcellulose and a proper amount of auxiliary agent, heating to be uniformly mixed, adding pigment for color matching, and uniformly grinding to obtain the offset printing ink.
Example 2
The offset printing ink specifically comprises the following steps:
1) respectively weighing 36kg of oleoresin, 8kg of calcium chloride, 3kg of white graphite, 3kg of pumice, 3kg of microcrystalline wax and 48kg of silane coupling agent for later use, heating the weighed oleoresin to 160 ℃, adding the silane coupling agent, uniformly mixing, adding the calcium chloride, the white graphite, the pumice and the microcrystalline wax, and uniformly mixing by ultrasonic dispersion (the frequency of ultrasonic dispersion is 80kHz) to obtain the wear-resisting agent;
2) respectively weighing 20kg of pigment, 60kg of binder, 12kg of linseed oil, 3kg of tetradecanol, 8kg of wear-resisting agent and 1.6kg of methyl cellulose for later use, wherein the binder comprises phenolic resin, melamine copolymer resin and rosin, and the mass ratio of the phenolic resin to the melamine copolymer resin to the rosin is 0.6:4: 1.2; and heating the weighed bonding material, specifically, adding rosin into a microwave reaction kettle, heating to be completely melted under the condition that the microwave power is 400W, adding phenolic resin and melamine copolymer resin, heating to be uniformly mixed, adding linseed oil, uniformly mixing, sequentially adding tetradecanol, a wear-resisting agent, methylcellulose and a proper amount of auxiliary agent (the same as the auxiliary agent in the embodiment 1 and the same addition amount is unchanged), heating and uniformly mixing, adding pigment for color matching, and uniformly grinding to obtain the offset printing ink.
Example 3
The offset printing ink specifically comprises the following steps:
1) respectively weighing 30kg of oleoresin, 4kg of calcium chloride, 2kg of white graphite, 2kg of pumice, 2kg of microcrystalline wax and 40kg of silane coupling agent for later use, heating the weighed oleoresin to 130 ℃, adding the silane coupling agent, uniformly mixing, adding the calcium chloride, the white graphite, the pumice and the microcrystalline wax, and uniformly mixing by ultrasonic dispersion (the frequency of ultrasonic dispersion is 60kHz) to obtain the wear-resisting agent;
2) respectively weighing 8kg of pigment, 44kg of binder, 6kg of linseed oil, 1.5kg of tetradecanol, 6kg of wear-resisting agent and 0.4kg of methyl cellulose for later use, wherein the binder comprises phenolic resin, melamine copolymer resin and rosin, and the mass ratio of the phenolic resin to the melamine copolymer resin to the rosin is 0.2:2: 1; and heating the weighed bonding material, specifically, adding rosin into a microwave reaction kettle, heating to be completely melted under the condition that the microwave power is 350W, adding phenolic resin and melamine copolymer resin, heating to be uniformly mixed, adding linseed oil, uniformly mixing, sequentially adding tetradecanol, a wear-resisting agent, methylcellulose and a proper amount of auxiliary agent (the same as the auxiliary agent in the embodiment 1 and the same addition amount is unchanged), heating and uniformly mixing, adding pigment for color matching, and uniformly grinding to obtain the offset printing ink.
Example 4
The offset printing ink specifically comprises the following steps:
1) respectively weighing 30kg of oleoresin, 4kg of calcium chloride, 2kg of white graphite, 2kg of pumice, 2kg of microcrystalline wax and 40kg of silane coupling agent for later use, heating the weighed oleoresin to 130 ℃, adding the silane coupling agent, uniformly mixing, adding the calcium chloride, the white graphite, the pumice and the microcrystalline wax, and uniformly mixing by ultrasonic dispersion (the frequency of ultrasonic dispersion is 60kHz) to obtain the wear-resisting agent;
2) respectively weighing 16kg of pigment, 56kg of binder, 10kg of linseed oil, 2.5kg of tetradecanol, 7kg of wear-resisting agent and 0.8kg of methyl cellulose for later use, wherein the binder comprises phenolic resin, melamine copolymer resin and rosin, and the mass ratio of the phenolic resin to the melamine copolymer resin to the rosin is 0.4:3: 1; and heating the weighed bonding material, specifically, adding rosin into a microwave reaction kettle, heating to be completely melted under the condition that the microwave power is 350W, adding phenolic resin and melamine copolymer resin, heating to be uniformly mixed, adding linseed oil, uniformly mixing, sequentially adding tetradecanol, a wear-resisting agent, methylcellulose and a proper amount of auxiliary agent (the same as the auxiliary agent in the embodiment 1 and the same addition amount is unchanged), heating and uniformly mixing, adding pigment for color matching, and uniformly grinding to obtain the offset printing ink.
Example 5
An offset ink, comparable to example 3, except that the offset ink comprises the following raw materials: 10kg of pigment, 48kg of binder, 6kg of linseed oil, 2kg of tetradecanol, 6kg of anti-wear agent and 0.6kg of methyl cellulose. The rest is the same as in example 3.
Example 6
An offset ink, comparable to example 3, except that the offset ink comprises the following raw materials: 12kg of pigment, 52kg of binder, 8kg of linseed oil, 2kg of tetradecanol, 7kg of anti-wear agent and 0.8kg of methyl cellulose. The rest is the same as in example 3.
Example 7
The comparative example was conducted in the same manner as example 3 except that the binder included a phenol resin, a melamine copolymer resin and a rosin in a mass ratio of 0.3:2.5: 1.
Example 8
The comparative example was conducted in the same manner as example 3 except that the binder included a phenol resin, a melamine copolymer resin and a rosin in a mass ratio of 0.5:1: 0.6.
Example 9
The comparative example was performed in the same manner as example 3, except that the binder included a phenol resin, a melamine copolymer resin, and a rosin in a mass ratio of 0.6:3: 1.2.
Example 10
The comparative example was performed in the same manner as example 3, except that the binder included a phenol resin, a melamine copolymer resin, and a rosin in a mass ratio of 0.3:3: 0.8.
Example 11
The procedure of example 9 was repeated, except that the oil-containing resin was heated to 120 ℃ and the silane coupling agent was added, as compared with example 9.
Example 12
The procedure of example 9 was repeated, except that the oil-containing resin was heated to 140 ℃ and the silane coupling agent was added, as compared with example 9.
Example 13
The procedure of example 9 was repeated, except that the oil-containing resin was heated to 150 ℃ and the silane coupling agent was added, as compared with example 9.
Example 14
The procedure of example 9 was repeated, except that the oil-containing resin was heated to 160 ℃ and the silane coupling agent was added, as compared with example 9.
Comparative example 1
The comparative example was conducted in the same manner as example 5 except that the comparative example 5 did not contain white graphite or microcrystalline wax.
Comparative example 2
The same as example 5 except that pumice was not contained, as compared with example 5.
Comparative example 3
The comparative example was conducted in the same manner as example 5 except that the comparative example 5 did not contain white graphite, pumice stone, or microcrystalline wax.
Comparative example 4
The procedure of example 5 was repeated except that the binder was heated at room temperature by an induction cooker to melt and form a homogeneous material, as compared with example 5.
Performance detection
The flexographic inks prepared using the methods in examples 1-5 were tested for performance. Specifically, 50cm is selected2The first group was printed using the offset inks prepared in examples 1-5, and the second group was printed using commercial offset inks, and the number of the ink scales was observed, and the specific test results are shown in table 1.
Table 1 table of performance test results
Group of | Paper ink peeling part |
Example 1 | 5 |
Example 2 | 2 |
Example 3 | 3 |
Example 4 | 2 |
Example 5 | 1 |
Commercial offset inks | 16 |
As can be seen from the data in Table 1, the offset printing ink prepared by the preparation method of the offset printing ink provided by the embodiment of the invention has good printing performance and has few peeling parts of the paper ink after printing.
Next, in order to examine the influence of the production method of the present invention on the abrasion resistance of the flexographic inks, the flexographic inks produced by the methods of examples 1 to 5 and the flexographic inks produced in comparative examples 1 to 4 were subjected to abrasion resistance examination. Specifically, the offset inks prepared in the above examples 1 to 5 and comparative examples 1 to 4 were tested according to the abrasion resistance test method of the ink layer in CB/T7706-.
TABLE 2 abrasion resistance test results table
Group of | Ink layer abrasion resistance (%) |
Example 1 | 92 |
Example 2 | 96 |
Example 3 | 94 |
Example 4 | 97 |
Example 5 | 98 |
Comparative example 1 | 80 |
Comparative example 2 | 78 |
Comparative example 3 | 61 |
Comparative example 4 | 92 |
As can be seen from the data in Table 2, the offset printing ink prepared by the preparation method of the offset printing ink provided by the embodiment of the invention has good wear resistance, and the data of the comparative examples 1 to 3 are combined, so that the wear resistance of the offset printing ink can be effectively improved by the matching use of the white graphite, the pumice and the microcrystalline wax. Therefore, the paper printing ink has excellent wear resistance while reducing peeling of the paper printing ink by adding the wear-resistant agent which takes the oleoresin, calcium chloride, white graphite, pumice, microcrystalline wax, silane coupling agent and the like as raw materials. The data of comparative example 4 show that the adverse effect caused by heating to melt through an induction cooker conventionally can be effectively reduced by adopting a microwave heating mode, and the using effect of the wear-resisting agent is further effectively improved.
By combining the data in table 1 and table 2, it can be seen that the offset ink prepared by the method for preparing the offset ink provided by the embodiment of the invention has excellent wear resistance while reducing the flaking of the paper ink. It should be noted that, as the silane coupling agent and the oil-containing resin are subjected to coupling reaction, nanometer materials such as calcium chloride, white graphite, pumice, microcrystalline wax and the like are directly formed into a combined body, and meanwhile, the excessive silane coupling agent is also subjected to reaction with the combined material, so that the combining capability of the wear-resistant agent and other components in the offset printing ink is improved, a network structure is finally formed, and the wear resistance of the offset printing ink is effectively improved.
According to the above results, the invention has the following beneficial effects that the offset printing ink is prepared by taking pigment, binder, linseed oil, tetradecanol, wear-resisting agent, methyl cellulose and the like as raw materials; the wear-resistant agent is prepared by taking oil-containing resin, calcium chloride, white graphite, pumice, microcrystalline wax and a silane coupling agent as raw materials and heating and mixing the raw materials. The preparation method provided by the embodiment of the invention is simple, solves the problem of insufficient wear resistance of the existing offset printing ink, and has wide market prospect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The offset printing ink is characterized by comprising the following raw materials in parts by weight: 2-20 parts of pigment, 40-60 parts of binder, 4-12 parts of linseed oil, 1-3 parts of tetradecanol, 5-8 parts of wear-resisting agent and 0.1-1.6 parts of methyl cellulose; the wear-resisting agent is prepared by heating and mixing oleoresin, calcium chloride, white graphite, pumice, microcrystalline wax and a silane coupling agent serving as raw materials.
2. The flexographic ink of claim 1, characterized in that it comprises the following raw materials in parts by weight: 8-16 parts of pigment, 44-56 parts of binder, 6-10 parts of linseed oil, 1.5-2.5 parts of tetradecanol, 6-7 parts of anti-wear agent and 0.4-0.8 part of methyl cellulose.
3. The flexographic ink of claim 1, wherein said vehicle comprises at least a phenolic resin, a melamine copolymer resin, and a rosin, and the mass ratio of the phenolic resin, the melamine copolymer resin, and the rosin is 0.1-0.6:1-4: 0.6-1.2.
4. The flexographic ink of claim 3, wherein the mass ratio of phenolic resin, melamine copolymer resin, and rosin in said vehicle is 0.2-0.4:2-3: 1.
5. The flexographic ink of claim 1, wherein said wear resistant agent comprises the following raw materials in parts by weight: 22-36 parts of oleoresin, 2-8 parts of calcium chloride, 1-3 parts of white graphite, 1-3 parts of pumice, 1-3 parts of microcrystalline wax and 32-48 parts of silane coupling agent.
6. The offset ink of claim 5, wherein the wear-resistant agent is prepared by weighing the oleoresin according to a proportion, heating to 160 ℃ of 120 ℃, adding the silane coupling agent, mixing uniformly, then adding the calcium chloride, the white graphite, the pumice and the microcrystalline wax, and mixing uniformly by ultrasonic dispersion.
7. Flexographic ink according to claim 6, characterized in that in said process for the preparation of said wear resistant agent, the frequency of said ultrasonic dispersion is between 40 and 80 kHz.
8. A method of preparing a flexographic ink according to any of claims 1 to 7, comprising the steps of: weighing the bonding material according to the weight parts, heating, adding linseed oil, uniformly mixing, sequentially adding tetradecanol, a wear-resisting agent and methyl cellulose, heating and uniformly mixing, adding pigment for color matching, and uniformly grinding to obtain the offset printing ink.
9. The method for preparing offset ink according to claim 8, wherein the step of weighing the binder for heating is performed by microwave heating, and the stirring is performed continuously during the microwave heating, and the microwave power of the microwave heating is 300-400W.
10. A flexographic ink prepared by the method for preparing a flexographic ink according to claim 8 or 9.
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