A kind of offset printing ink wear-resistant agent and its preparation method and application

Abstract

This invention discloses an offset printing ink abrasion resistant agent, its preparation method, and its application. It relates to the field of abrasion resistant agent technology. The aforementioned offset printing ink abrasion resistant agent comprises the following components: light white oil; wax powder; resin oil; silane coupling agent; peroxide crosslinking agent; additives; and fillers. The offset printing ink abrasion resistant agent of this invention can significantly improve the abrasion resistance of printed surfaces, reducing damage caused by wear and scratches. This makes printed materials more durable and extends their service life. Furthermore, the offset printing ink abrasion resistant agent of this invention can increase the mechanical strength and anti-sticking properties of the ink, improve its flowability and transfer performance, and make the printing process more stable.

Description

Technical Field

[0001] This invention relates to the field of abrasion-resistant agent technology, and in particular to an abrasion-resistant agent for offset printing ink, its preparation method, and its application. Background Technology

[0002] Offset printing ink abrasion resistant agents are additives specifically designed to improve the abrasion resistance of offset printing inks. They effectively enhance the durability and abrasion resistance of the ink, thereby improving the quality and lifespan of printed materials. During offset printing, the ink undergoes prolonged friction and abrasion with the printing plate and printing media, leading to ink layer detachment and a decline in print quality. To address this issue, offset printing ink abrasion resistant agents were developed. The main function of offset printing ink abrasion resistant agents is to increase the durability and abrasion resistance of the ink, enabling it to maintain stable printing results over extended periods during printing and subsequent processing. Specifically, offset printing ink abrasion resistant agents can achieve the following objectives:

[0003] First, it improves printing durability. By adding abrasion-resistant agents, the hardness and abrasion resistance of the ink layer are enhanced, thereby reducing wear during the printing process. This allows printing plates to maintain a good service life for a longer period, extending the maintenance cycle of printing equipment. Second, abrasion-resistant agents for offset printing inks also improve the quality of printed materials. After adding abrasion-resistant agents, a uniform protective film forms on the ink surface, allowing the ink to adhere better to the printing medium. This not only improves the color saturation and pattern clarity of the printed materials but also makes details more clearly visible. Therefore, the printed materials are more visually appealing and of higher quality. In addition, abrasion-resistant agents for offset printing inks also enhance the weather resistance of printed materials. By adding abrasion-resistant agents, the ink's resistance to ultraviolet rays and chemical erosion is improved. This allows printed materials to maintain color stability and physical properties for a long time in outdoor environments, reducing color fading and quality degradation caused by environmental factors.

[0004] However, current technology still faces some challenges and limitations in the development of abrasion-resistant agents for offset printing inks. One of these is the performance issue of existing abrasion-resistant agents for offset printing inks, which have poor abrasion resistance and fail to meet practical requirements. Summary of the Invention

[0005] The first technical problem to be solved by this invention is:

[0006] A wear-resistant agent for offset printing inks is provided.

[0007] The second technical problem to be solved by this invention is:

[0008] A method for preparing the abrasion-resistant agent for offset printing ink is provided.

[0009] The third technical problem to be solved by this invention is:

[0010] The application of the abrasion-resistant agent in the offset printing ink.

[0011] To solve the first technical problem, the technical solution adopted by the present invention is as follows:

[0012] An abrasion resistant agent for offset printing inks, comprising the following components:

[0013] Light white oil;

[0014] Wax powder;

[0015] Resin oil;

[0016] Silane coupling agents;

[0017] Peroxide crosslinking agent;

[0018] Additives;

[0019] filler.

[0020] According to embodiments of the present invention, one of the technical solutions has at least one of the following advantages or beneficial effects:

[0021] The offset printing ink abrasion resistant agent of this invention can significantly improve the abrasion resistance of printed surfaces, reducing damage caused by wear and scratches. This makes printed materials more durable and extends their service life. Furthermore, the offset printing ink abrasion resistant agent of this invention can increase the mechanical strength and anti-sticking properties of the ink, improve its flowability and transfer performance, and make the printing process more stable.

[0022] Specifically, the wax powder in the abrasion-resistant offset ink of this invention acts as a filler, which can fill the tiny pores in the ink, improve the density and hardness of the ink, and thus increase its abrasion resistance.

[0023] Specifically, the resin oil in the offset printing ink abrasion resistant agent of the present invention has good lubricity and adhesion, which can reduce friction and form a protective film to prevent external substances from abrading the printed matter.

[0024] Specifically, the silane coupling agent in the offset printing ink abrasion resistant agent of the present invention can provide surface active properties, enabling the filler and resin oil to be better bonded together, thereby enhancing the adhesion and abrasion resistance of the abrasion resistant agent.

[0025] Specifically, the peroxide crosslinking agent in the offset printing ink abrasion resistant agent of the present invention can undergo a crosslinking reaction with bisphenol A type resin to form a three-dimensional network structure, forming a hard film layer in the offset printing ink and improving abrasion resistance.

[0026] Specifically, the use of additives in the offset printing ink abrasion resistant agent of the present invention can adjust the viscosity and flowability of the offset printing ink abrasion resistant agent, ensuring its good mixability and stability.

[0027] Specifically, the addition of fillers to the offset printing ink abrasion resistant agent of the present invention can increase the volume of the offset printing ink abrasion resistant agent, improve its flowability and coating properties, and at the same time improve the hardness and abrasion resistance of the ink.

[0028] According to one embodiment of the present invention, the offset printing ink abrasion resistant agent comprises the following components in parts by weight:

[0029] 10-40 parts of light white oil;

[0030] 5-20 parts wax powder;

[0031] 5-30 parts resin oil;

[0032] 0.5-5 parts of silane coupling agent;

[0033] Peroxide crosslinking agent 0.5-5 parts;

[0034] 1-10 parts of auxiliary agent;

[0035] 10-30 parts of filler.

[0036] According to one embodiment of the present invention, the light white oil includes at least one of mineral oil, synthetic white oil and natural wax oil.

[0037] According to one embodiment of the present invention, mineral oil is a light white oil derived from petroleum, possessing good gloss, lubricity, and stability. It typically exhibits low viscosity, high oxidation resistance, and good heat resistance, serving as a lubricant, reducing viscosity, and increasing fluidity in offset printing inks. Its advantage lies in its relatively low price.

[0038] According to one embodiment of the present invention, synthetic white oil is a light white oil synthesized through processing, whose physical and chemical properties can be adjusted as needed. They typically possess high purity, are free of impurities, have low volatility, and excellent solubility. Advantages include good chemical stability, resistance to deterioration, and the ability to provide more stable and controllable performance.

[0039] According to one embodiment of the present invention, natural wax oil is a white oil extracted from plant or animal waxes, and its main components are esters. It possesses good lubricity, water resistance, and abrasion resistance, and maintains stability even at low temperatures. Its advantages include being environmentally friendly, biodegradable, and harmless to the human body.

[0040] According to one embodiment of the present invention, the wax powder includes bovine wax, which is a natural wax powder extracted from cowhide and cow skeleton, and its main components are fatty acids and esters. These typically have low viscosity and good viscosity-reducing properties, which can increase the fluidity and lubricity of inks, while also improving the gloss, transparency, and abrasion resistance of the inks.

[0041] According to one embodiment of the present invention, the wax powder includes paraffin wax, which is a paraffin wax powder obtained from petroleum refining, and its main components are hydrocarbons. These materials have good heat resistance and stability, and in inks, they can act as anti-sticking and protective lubricants. Advantages include low price, easy availability, and minimal impact on coating color.

[0042] According to one embodiment of the present invention, the wax powder includes polyethylene wax, which is a synthetic wax powder with good lubricity and abrasion resistance. These properties can improve the mechanical strength and gloss of the ink and reduce film adhesion, while also reducing friction between particles to achieve a viscosity-reducing effect.

[0043] According to one embodiment of the present invention, the resin oil includes at least one of petroleum resin oil, epoxy resin oil, phenolic resin oil, and acrylic resin oil.

[0044] According to one embodiment of the present invention, petroleum resin oil is a synthetic resin with good temperature resistance and light resistance, which can increase the hardness and durability of the coating. However, it has poor stability and is easily affected by factors such as oxidation and ultraviolet radiation, and is prone to yellowing and brittleness.

[0045] According to one embodiment of the present invention, epoxy resin oil is a high molecular polymer. Compared with other resin oils, it has higher chemical stability, better adhesion and rigidity, and can improve the strength and compressive strength of the coating. However, due to the high hardness of epoxy resin oil, it is prone to cracking and peeling.

[0046] According to one embodiment of the present invention, phenolic resin oil is a thermosetting resin with high wear resistance and corrosion resistance, and exhibits excellent stability and strength at high temperatures.

[0047] According to one embodiment of the present invention, acrylic resin oil is a commonly used synthetic resin oil with good adhesion, elasticity and cold resistance, and can still maintain good toughness at low temperatures.

[0048] According to one embodiment of the present invention, the silane coupling agent includes at least one of vinyltriethoxysilane, vinyltrimethylsilane, vinyltri(β-methoxyethoxy)silane, methylvinyldiethoxysilane, and trimethyl(ethyleneoxy)silane.

[0049] According to one embodiment of the present invention, the peroxide crosslinking agent includes at least one of di(tert-butylperoxyisopropyl)benzene, dicumyl peroxide, BPO (benzoyl peroxide), bis(2,5-diphenyl)-2-diphenylene oxide, and bis(2,6-diphenyl)-2-diphenylene oxide.

[0050] According to one embodiment of the present invention, the adjuvant includes a stabilizer and an antioxidant.

[0051] According to one embodiment of the present invention, the stabilizer includes an antioxidant and a film-forming aid. The antioxidant protects the resin and other components in the coating from oxidation reactions, extending its service life and stability. The film-forming aid increases the adhesion and smoothness of the coating, improving its durability and gloss. Commonly used film-forming aids include microbubble polymers and glyceryl dimethicone, which can improve the surface properties and flowability of the coating.

[0052] According to one embodiment of the present invention, the filler comprises at least one of nano-silicon, alumina, graphite, nano-ceramic particles and carbon fiber.

[0053] According to one embodiment of the present invention, nano-silicon is a silica filler with a fine particle size, exhibiting excellent wear resistance, high-temperature resistance, and chemical corrosion resistance. It can improve the hardness and durability of coatings, and enhance friction and scratch resistance.

[0054] According to one embodiment of the present invention, alumina is a high-hardness filler with good wear resistance, high-temperature resistance, and electrical insulation properties. It is effective in increasing the hardness and durability of wear-resistant agents, but alumina is prone to agglomeration, which may cause a rough coating surface.

[0055] According to one embodiment of the present invention, graphite is a filler with a low coefficient of friction and self-lubricating properties, which can reduce the frictional loss of the coating and improve its wear resistance. Graphite also has good thermal conductivity and high temperature resistance, but may be corrosive in acidic or alkaline environments.

[0056] According to one embodiment of the present invention, nano-ceramic particles such as zirconium oxide and alumina possess excellent hardness and wear resistance, which can significantly improve the durability and wear resistance of the coating. They also have good high-temperature resistance and corrosion resistance.

[0057] According to one embodiment of the present invention, carbon fiber is a high-strength, high-modulus, and low-density filler used to enhance the strength and rigidity of coatings and improve their impact resistance and abrasion resistance.

[0058] To solve the second technical problem, the technical solution adopted by the present invention is as follows:

[0059] A method for preparing the abrasion-resistant agent for offset printing ink includes the following steps:

[0060] S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers;

[0061] S2. The mixture obtained in step S1 is placed in a twin-screw extruder for granulation;

[0062] S3 preheats the product obtained in step S2, adds a silane coupling agent, and carries out a dehydration condensation reaction to obtain an offset printing ink abrasion resistant agent.

[0063] According to embodiments of the present invention, one of the technical solutions has at least one of the following advantages or beneficial effects:

[0064] In the method of this invention, granulation using a twin-screw extruder allows the mixture to be extruded in a molten state, thereby achieving the uniform preparation of smaller particles. This helps maintain the flowability and coatability of the abrasion-resistant agent and improves the stability of the ink.

[0065] Adding silane coupling agents can increase the adhesion and abrasion resistance of offset printing inks. Silane coupling agents have a unique molecular structure and excellent surface activity. Their molecules contain multiple hydrophilic groups at their ends, which can form covalent bonds between the abrasion agent and the ink, thereby improving the stability and mechanical strength of the abrasion agent and further ensuring the abrasion resistance of the ink.

[0066] Adding fillers to offset printing ink abrasion resistant agents can increase the volume of the abrasion resistant agent, improve its flowability and coatability, and simultaneously enhance the ink's hardness and abrasion resistance. Fillers can be uniformly distributed in the mixture during preparation and can chemically react with other components to increase its mechanical strength and abrasion resistance.

[0067] Peroxide crosslinking agents can undergo crosslinking reactions to form a three-dimensional network structure, ensuring the formation of a hard film layer in offset printing inks and improving abrasion resistance.

[0068] According to one embodiment of the present invention, in step S3, the preheating temperature is 100-150°C.

[0069] According to one embodiment of the present invention, in step S3, the preheating time is 1 to 2 hours.

[0070] According to one embodiment of the present invention, in step S3, the dehydration condensation reaction is carried out at an environment of 80-90°C.

[0071] Another aspect of the present invention relates to the application of the offset printing ink abrasion resistant agent in printing equipment. This includes the offset printing ink abrasion resistant agent as described in the first aspect embodiment above. Since this application employs all the technical solutions of the aforementioned offset printing ink abrasion resistant agent, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0072] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Detailed Implementation

[0073] The terms "preferred," "more preferably," etc., used in this invention refer to embodiments of the invention that provide certain beneficial effects under certain circumstances. However, other embodiments may also be preferred under the same or other circumstances. Furthermore, the description of one or more preferred embodiments does not imply that other embodiments are unavailable, nor is it intended to exclude other embodiments from the scope of this invention.

[0074] When a numerical range is disclosed herein, the range is considered continuous and includes the minimum and maximum values ​​of the range, as well as every value between the minimum and maximum values. Furthermore, when the range refers to integers, it includes every integer between the minimum and maximum values ​​of the range. Additionally, when multiple ranges are provided to describe a feature or characteristic, the ranges may be combined. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all subranges to which they are incorporated.

[0075] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present invention.

[0076] Unless otherwise specified, the reagents, methods and equipment used in this invention are all conventional reagents, methods and equipment in this technical field.

[0077] Example 1

[0078] An abrasion resistant agent for offset printing inks, comprising the following components in parts by weight:

[0079] 10 parts light white oil;

[0080] 5 parts wax powder;

[0081] 5 parts resin oil;

[0082] 0.5 parts of silane coupling agent;

[0083] 0.5 parts of peroxide crosslinking agent;

[0084] 1 part of the auxiliary agent;

[0085] 10 parts of filler.

[0086] The wax powder includes bovine wax, paraffin wax, and polyethylene wax in a weight ratio of 1:0.5:1.

[0087] The resin oil includes epoxy resin oil and phenolic resin oil in a weight ratio of 2:4.

[0088] The silane coupling agent comprises vinyltriethoxysilane, vinyltrimethylsilane, and vinyltri(β-methoxyethoxy)silane in a weight ratio of 0.1:3:2.

[0089] The peroxide crosslinking agent includes di(tert-butylperoxyisopropyl)benzene, diisopropylperoxybenzene and BPO (benzoyl peroxide) in a weight ratio of 1:1:1.

[0090] The additives include stabilizers and antioxidants;

[0091] The antioxidant is isopropyl 3,5-di-tert-butyl-4-hydroxybenzoate;

[0092] The filler comprises nano-silicon, alumina, and graphite in a weight ratio of 3:1:1.

[0093] The method for preparing the above-mentioned abrasion-resistant agent for offset printing ink includes the following steps:

[0094] S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers;

[0095] S2. The mixture obtained in step S1 is placed in a twin-screw extruder for granulation;

[0096] S3 preheats the product obtained in step S2, adds a silane coupling agent, and sets the temperature to 80°C to carry out a dehydration condensation reaction to obtain an offset printing ink abrasion resistant agent.

[0097] An ink, the components of which include:

[0098] The mixture consists of 20 parts by weight of type 4324 acrylic resin, 10 parts by weight of type 4351 hydroxy acrylic resin, 8 parts by weight of pigment, 1 part by weight of dispersant, 5 parts by weight of the above-mentioned abrasion resistant agent, 1 part by weight of surfactant, 1 part by weight of leveling agent, and the remainder is ethyl acetate.

[0099] Example 2

[0100] An abrasion resistant agent for offset printing inks, comprising the following components in parts by weight:

[0101] 40 parts light white oil;

[0102] 20 parts wax powder;

[0103] 30 parts resin oil;

[0104] 5 parts of silane coupling agent;

[0105] 5 parts peroxide crosslinking agent;

[0106] 10 parts of auxiliary agent;

[0107] 30 parts of filler.

[0108] The wax powder includes bovine wax, paraffin wax, and polyethylene wax in a weight ratio of 1:0.5:1.

[0109] The resin oil includes epoxy resin oil and phenolic resin oil in a weight ratio of 2:4.

[0110] The silane coupling agent comprises vinyltriethoxysilane, vinyltrimethylsilane, and vinyltri(β-methoxyethoxy)silane in a weight ratio of 0.1:3:2.

[0111] The peroxide crosslinking agent includes di(tert-butylperoxyisopropyl)benzene, diisopropylperoxybenzene and BPO (benzoyl peroxide) in a weight ratio of 1:1:1.

[0112] The additives include stabilizers and antioxidants;

[0113] The antioxidant is isopropyl 3,5-di-tert-butyl-4-hydroxybenzoate;

[0114] The filler comprises nano-silicon, alumina, and graphite in a weight ratio of 3:1:1.

[0115] The method for preparing the above-mentioned abrasion-resistant agent for offset printing ink includes the following steps:

[0116] S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers;

[0117] S2. The mixture obtained in step S1 is placed in a twin-screw extruder for granulation;

[0118] S3 preheats the product obtained in step S2, adds a silane coupling agent, and sets the temperature to 90°C to carry out a dehydration condensation reaction to obtain an offset printing ink abrasion resistant agent.

[0119] An ink, the components of which include:

[0120] The mixture consists of 20 parts by weight of type 4324 acrylic resin, 10 parts by weight of type 4351 hydroxy acrylic resin, 8 parts by weight of pigment, 1 part by weight of dispersant, 5 parts by weight of the above-mentioned abrasion resistant agent, 1 part by weight of surfactant, 1 part by weight of leveling agent, and the remainder is ethyl acetate.

[0121] Example 3

[0122] An abrasion resistant agent for offset printing inks, comprising the following components in parts by weight:

[0123] 20 parts light white oil;

[0124] 15 parts wax powder;

[0125] 15 parts resin oil;

[0126] 2 parts of silane coupling agent;

[0127] Two parts of peroxide crosslinking agent;

[0128] 5 parts of auxiliary agent;

[0129] 20 parts of filler.

[0130] The wax powder includes bovine wax, paraffin wax, and polyethylene wax in a weight ratio of 1:0.5:1.

[0131] The resin oil includes epoxy resin oil and phenolic resin oil in a weight ratio of 2:4.

[0132] The silane coupling agent comprises vinyltriethoxysilane, vinyltrimethylsilane, and vinyltri(β-methoxyethoxy)silane in a weight ratio of 0.1:3:2.

[0133] The peroxide crosslinking agent includes di(tert-butylperoxyisopropyl)benzene, diisopropylperoxybenzene and BPO (benzoyl peroxide) in a weight ratio of 1:1:1.

[0134] The additives include stabilizers and antioxidants;

[0135] The antioxidant is isopropyl 3,5-di-tert-butyl-4-hydroxybenzoate;

[0136] The filler comprises nano-silicon, alumina, and graphite in a weight ratio of 3:1:1.

[0137] The method for preparing the above-mentioned abrasion-resistant agent for offset printing ink includes the following steps:

[0138] S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers;

[0139] S2. The mixture obtained in step S1 is placed in a twin-screw extruder for granulation;

[0140] S3 preheats the product obtained in step S2, adds a silane coupling agent, and sets the temperature to 80°C to carry out a dehydration condensation reaction to obtain an offset printing ink abrasion resistant agent.

[0141] An ink, the components of which include:

[0142] The mixture consists of 20 parts by weight of type 4324 acrylic resin, 10 parts by weight of type 4351 hydroxy acrylic resin, 8 parts by weight of pigment, 1 part by weight of dispersant, 5 parts by weight of the above-mentioned abrasion resistant agent, 1 part by weight of surfactant, 1 part by weight of leveling agent, and the remainder is ethyl acetate.

[0143] Example 4

[0144] An abrasion resistant agent for offset printing inks, comprising the following components in parts by weight:

[0145] 12 parts light white oil;

[0146] 18 parts wax powder;

[0147] 15 parts resin oil;

[0148] 2 parts of silane coupling agent;

[0149] Two parts of peroxide crosslinking agent;

[0150] 5 parts of auxiliary agent;

[0151] 20 parts of filler.

[0152] The wax powder includes bovine wax, paraffin wax, and polyethylene wax in a weight ratio of 1:0.5:1.

[0153] The resin oil includes epoxy resin oil and phenolic resin oil in a weight ratio of 2:4.

[0154] The silane coupling agent comprises vinyltriethoxysilane, vinyltrimethylsilane, and vinyltri(β-methoxyethoxy)silane in a weight ratio of 0.1:3:2.

[0155] The peroxide crosslinking agent includes di(tert-butylperoxyisopropyl)benzene, diisopropylperoxybenzene and BPO (benzoyl peroxide) in a weight ratio of 1:1:1.

[0156] The additives include stabilizers and antioxidants;

[0157] The antioxidant is isopropyl 3,5-di-tert-butyl-4-hydroxybenzoate;

[0158] The filler comprises nano-silicon, alumina, and graphite in a weight ratio of 3:1:1.

[0159] The method for preparing the above-mentioned abrasion-resistant agent for offset printing ink includes the following steps:

[0160] S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers;

[0161] S2. The mixture obtained in step S1 is placed in a twin-screw extruder for granulation;

[0162] S3 preheats the product obtained in step S2, adds a silane coupling agent, and sets the temperature to 80°C to carry out a dehydration condensation reaction to obtain an offset printing ink abrasion resistant agent.

[0163] An ink, the components of which include:

[0164] The mixture consists of 20 parts by weight of type 4324 acrylic resin, 10 parts by weight of type 4351 hydroxy acrylic resin, 8 parts by weight of pigment, 1 part by weight of dispersant, 5 parts by weight of the above-mentioned abrasion resistant agent, 1 part by weight of surfactant, 1 part by weight of leveling agent, and the remainder is ethyl acetate.

[0165] Example 5

[0166] An abrasion resistant agent for offset printing inks, comprising the following components in parts by weight:

[0167] 32 parts light white oil;

[0168] 20 parts wax powder;

[0169] 15 parts resin oil;

[0170] 4 parts of silane coupling agent;

[0171] 3 parts peroxide crosslinking agent;

[0172] 1 part of the auxiliary agent;

[0173] 15 parts of filler.

[0174] The wax powder includes bovine wax, paraffin wax, and polyethylene wax in a weight ratio of 1:0.5:1.

[0175] The resin oil includes epoxy resin oil and phenolic resin oil in a weight ratio of 2:4.

[0176] The silane coupling agent comprises vinyltriethoxysilane, vinyltrimethylsilane, and vinyltri(β-methoxyethoxy)silane in a weight ratio of 0.1:3:2.

[0177] The peroxide crosslinking agent includes di(tert-butylperoxyisopropyl)benzene, diisopropylperoxybenzene and BPO (benzoyl peroxide) in a weight ratio of 1:1:1.

[0178] The additives include stabilizers and antioxidants;

[0179] The antioxidant is isopropyl 3,5-di-tert-butyl-4-hydroxybenzoate;

[0180] The filler comprises nano-silicon, alumina, and graphite in a weight ratio of 3:1:1.

[0181] The method for preparing the above-mentioned abrasion-resistant agent for offset printing ink includes the following steps:

[0182] S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers;

[0183] S2. The mixture obtained in step S1 is placed in a twin-screw extruder for granulation;

[0184] S3 preheats the product obtained in step S2, adds a silane coupling agent, and sets the temperature to 80°C to carry out a dehydration condensation reaction to obtain an offset printing ink abrasion resistant agent.

[0185] An ink, the components of which include:

[0186] The mixture consists of 20 parts by weight of type 4324 acrylic resin, 10 parts by weight of type 4351 hydroxy acrylic resin, 8 parts by weight of pigment, 1 part by weight of dispersant, 5 parts by weight of the above-mentioned abrasion resistant agent, 1 part by weight of surfactant, 1 part by weight of leveling agent, and the remainder is ethyl acetate.

[0187] Example 6

[0188] An abrasion resistant agent for offset printing inks, comprising the following components in parts by weight:

[0189] 20 parts light white oil;

[0190] 20 parts wax powder;

[0191] 5 parts resin oil;

[0192] 2 parts of silane coupling agent;

[0193] Two parts of peroxide crosslinking agent;

[0194] 3 parts of auxiliary agent;

[0195] 20 parts of filler.

[0196] The wax powder includes bovine wax, paraffin wax, and polyethylene wax in a weight ratio of 1:0.5:1.

[0197] The resin oil includes epoxy resin oil and phenolic resin oil in a weight ratio of 2:4.

[0198] The silane coupling agent comprises vinyltriethoxysilane, vinyltrimethylsilane, and vinyltri(β-methoxyethoxy)silane in a weight ratio of 0.1:3:2.

[0199] The peroxide crosslinking agent includes di(tert-butylperoxyisopropyl)benzene, diisopropylperoxybenzene and BPO (benzoyl peroxide) in a weight ratio of 1:1:1.

[0200] The additives include stabilizers and antioxidants;

[0201] The antioxidant is isopropyl 3,5-di-tert-butyl-4-hydroxybenzoate;

[0202] The filler comprises nano-silicon, alumina, and graphite in a weight ratio of 3:1:1.

[0203] The method for preparing the above-mentioned abrasion-resistant agent for offset printing ink includes the following steps:

[0204] S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers;

[0205] S2. The mixture obtained in step S1 is placed in a twin-screw extruder for granulation;

[0206] S3 preheats the product obtained in step S2, adds a silane coupling agent, and sets the temperature to 80°C to carry out a dehydration condensation reaction to obtain an offset printing ink abrasion resistant agent.

[0207] An ink, the components of which include:

[0208] The mixture consists of 20 parts by weight of type 4324 acrylic resin, 10 parts by weight of type 4351 hydroxy acrylic resin, 8 parts by weight of pigment, 1 part by weight of dispersant, 5 parts by weight of the above-mentioned abrasion resistant agent, 1 part by weight of surfactant, 1 part by weight of leveling agent, and the remainder is ethyl acetate.

[0209] Example 7

[0210] An abrasion resistant agent for offset printing inks, comprising the following components in parts by weight:

[0211] 12 parts light white oil;

[0212] 20 parts wax powder;

[0213] 5 parts resin oil;

[0214] 2 parts of silane coupling agent;

[0215] 3 parts peroxide crosslinking agent;

[0216] 5 parts of auxiliary agent;

[0217] 20 parts of filler.

[0218] The wax powder includes bovine wax, paraffin wax, and polyethylene wax in a weight ratio of 1:0.5:1.

[0219] The resin oil includes epoxy resin oil and phenolic resin oil in a weight ratio of 2:4.

[0220] The silane coupling agent comprises vinyltriethoxysilane, vinyltrimethylsilane, and vinyltri(β-methoxyethoxy)silane in a weight ratio of 0.1:3:2.

[0221] The peroxide crosslinking agent includes di(tert-butylperoxyisopropyl)benzene, diisopropylperoxybenzene and BPO (benzoyl peroxide) in a weight ratio of 1:1:1.

[0222] The additives include stabilizers and antioxidants;

[0223] The antioxidant is isopropyl 3,5-di-tert-butyl-4-hydroxybenzoate;

[0224] The filler comprises nano-silicon, alumina, and graphite in a weight ratio of 3:1:1.

[0225] The method for preparing the above-mentioned abrasion-resistant agent for offset printing ink includes the following steps:

[0226] S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers;

[0227] S2. The mixture obtained in step S1 is placed in a twin-screw extruder for granulation;

[0228] S3 preheats the product obtained in step S2, adds a silane coupling agent, and sets the temperature to 80°C to carry out a dehydration condensation reaction to obtain an offset printing ink abrasion resistant agent.

[0229] An ink, the components of which include:

[0230] The mixture consists of 20 parts by weight of type 4324 acrylic resin, 10 parts by weight of type 4351 hydroxy acrylic resin, 8 parts by weight of pigment, 1 part by weight of dispersant, 5 parts by weight of the above-mentioned abrasion resistant agent, 1 part by weight of surfactant, 1 part by weight of leveling agent, and the remainder is ethyl acetate.

[0231] Example 8

[0232] An abrasion resistant agent for offset printing inks, comprising the following components in parts by weight:

[0233] 20 parts light white oil;

[0234] 15 parts wax powder;

[0235] 20 parts resin oil;

[0236] 3 parts silane coupling agent;

[0237] 3 parts peroxide crosslinking agent;

[0238] 10 parts of auxiliary agent;

[0239] 15 parts of filler.

[0240] The wax powder includes bovine wax, paraffin wax, and polyethylene wax in a weight ratio of 1:0.5:1.

[0241] The resin oil includes epoxy resin oil and phenolic resin oil in a weight ratio of 2:4.

[0242] The silane coupling agent comprises vinyltriethoxysilane, vinyltrimethylsilane, and vinyltri(β-methoxyethoxy)silane in a weight ratio of 0.1:3:2.

[0243] The peroxide crosslinking agent includes di(tert-butylperoxyisopropyl)benzene, diisopropylperoxybenzene and BPO (benzoyl peroxide) in a weight ratio of 1:1:1.

[0244] The additives include stabilizers and antioxidants;

[0245] The antioxidant is isopropyl 3,5-di-tert-butyl-4-hydroxybenzoate;

[0246] The filler comprises nano-silicon, alumina, and graphite in a weight ratio of 3:1:1.

[0247] The method for preparing the above-mentioned abrasion-resistant agent for offset printing ink includes the following steps:

[0248] S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers;

[0249] S2. The mixture obtained in step S1 is placed in a twin-screw extruder for granulation;

[0250] S3 preheats the product obtained in step S2, adds a silane coupling agent, and sets the temperature to 80°C to carry out a dehydration condensation reaction to obtain an offset printing ink abrasion resistant agent.

[0251] An ink, the components of which include:

[0252] The mixture consists of 20 parts by weight of type 4324 acrylic resin, 10 parts by weight of type 4351 hydroxy acrylic resin, 8 parts by weight of pigment, 1 part by weight of dispersant, 5 parts by weight of the above-mentioned abrasion resistant agent, 1 part by weight of surfactant, 1 part by weight of leveling agent, and the remainder is ethyl acetate.

[0253] Example 9

[0254] An abrasion resistant agent for offset printing inks, comprising the following components in parts by weight:

[0255] 25 parts light white oil;

[0256] 18 parts wax powder;

[0257] 20 parts resin oil;

[0258] 2 parts of silane coupling agent;

[0259] Two parts of peroxide crosslinking agent;

[0260] 13 parts of auxiliary agents;

[0261] 15 parts of filler.

[0262] The wax powder includes bovine wax, paraffin wax, and polyethylene wax in a weight ratio of 1:0.5:1.

[0263] The resin oil includes epoxy resin oil and phenolic resin oil in a weight ratio of 2:4.

[0264] The silane coupling agent comprises vinyltriethoxysilane, vinyltrimethylsilane, and vinyltri(β-methoxyethoxy)silane in a weight ratio of 0.1:3:2.

[0265] The peroxide crosslinking agent includes di(tert-butylperoxyisopropyl)benzene, diisopropylperoxybenzene and BPO (benzoyl peroxide) in a weight ratio of 1:1:1.

[0266] The additives include stabilizers and antioxidants;

[0267] The antioxidant is isopropyl 3,5-di-tert-butyl-4-hydroxybenzoate;

[0268] The filler comprises nano-silicon, alumina, and graphite in a weight ratio of 3:1:1.

[0269] The method for preparing the above-mentioned abrasion-resistant agent for offset printing ink includes the following steps:

[0270] S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers;

[0271] S2. The mixture obtained in step S1 is placed in a twin-screw extruder for granulation;

[0272] S3 preheats the product obtained in step S2, adds a silane coupling agent, and sets the temperature to 80-90℃ to carry out a dehydration condensation reaction to obtain an offset printing ink abrasion resistant agent.

[0273] An ink, the components of which include:

[0274] The mixture consists of 20 parts by weight of type 4324 acrylic resin, 10 parts by weight of type 4351 hydroxy acrylic resin, 8 parts by weight of pigment, 1 part by weight of dispersant, 5 parts by weight of the above-mentioned abrasion resistant agent, 1 part by weight of surfactant, 1 part by weight of leveling agent, and the remainder is ethyl acetate.

[0275] Performance testing:

[0276] The abrasion resistant agents of offset printing inks in Examples 1-9 were subjected to the following tests, and the test results are shown in Table 1.

[0277] The tensile strength of the material was tested according to GB / T1040.1-2006 at a speed of 50 mm / min; the bending strength was tested according to GB / T9341-2008 at a speed of 2 mm / min; and the sliding friction and wear were tested according to GB / T3960-2016, with the test ring rotating at 200 r / min, a load of 196 N, and a test duration of 2 h.

[0278] Table 1

[0279]

[0280] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An abrasion resistant agent for offset printing ink, characterized in that: Includes the following components: 10-40 parts of light white oil; The wax powder consists of 5-20 parts of bovine wax, paraffin wax, and polyethylene wax in a weight ratio of 1:0.5:

1. 5-30 parts of resin oil, composed of epoxy resin oil and phenolic resin oil in a weight ratio of 2:4; 0.5-5 parts of silane coupling agent, composed of vinyltriethoxysilane, vinyltrimethylsilane, and vinyltris(β-methoxyethoxy)silane in a weight ratio of 0.1:3:2; 0.5-5 parts of peroxide crosslinking agent, composed of di(tert-butylperoxyisopropyl)benzene, diisopropylperoxybenzene, and BPO in a weight ratio of 1:1:1; 1-10 parts of auxiliary agent; The filler consists of 10-30 parts, composed of nano-silicon, alumina, and graphite in a weight ratio of 3:1:1; The adjuvants include stabilizers and antioxidants; The preparation method of the abrasion-resistant agent for offset printing ink includes the following steps: S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers; S2 The mixture obtained in step S1 is placed in a twin-screw extruder for granulation; S3. The product obtained in step S2 is preheated, a silane coupling agent is added, and a dehydration condensation reaction is carried out at 80-90°C to obtain an offset printing ink abrasion resistant agent.

2. The offset printing ink abrasion resistant agent according to claim 1, characterized in that: The light white oil is a synthetic white oil.

3. A method for preparing an offset printing ink abrasion resistant agent as described in any one of claims 1 or 2, characterized in that: Includes the following steps: S1 is a melt-mixed mixture of light white oil, wax powder, resin oil, peroxide crosslinking agent, additives and fillers; S2 The mixture obtained in step S1 is placed in a twin-screw extruder for granulation; S3. The product obtained in step S2 is preheated, and a silane coupling agent is added to carry out a dehydration condensation reaction to obtain an offset printing ink abrasion resistant agent.

4. The method according to claim 3, characterized in that: In step S3, the dehydration condensation reaction is carried out at 80–90°C.

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