Manufacturing method of sheet-fed offset printing ink suitable for multi-color-gamut high-speed printing

Abstract

The invention relates to a manufacturing method of sheet-fed offset printing ink suitable for multi-color-gamut high-speed printing, which is characterized by comprising the following steps of: obtaining a functional resin composition taking high-polymerization-force and high-solubility resin as a core, mixing and dissolving the functional resin composition with a solvent to prepare an ink binder intermediate with high polymerization force to high solvent release property, and mixing and grinding the ink binder intermediate with pigment and auxiliaries to obtain the sheet-fed offset printing ink suitable for multi-color-gamut high-speed printing. The color offset printing ink with relatively large cohesion and relatively small viscosity is obtained. The ink has the characteristics of high viscosity and low viscosity, good fluidity, super-strong adhesive force, extremely high drying speed, excellent solvent release property, smooth transfer printing and high quality of excellent printing adaptability, is suitable for multi-color-gamut high-precision high-speed printing, and can always keep the transfer printing stability in the operation of a multi-color-group printing machine.

Description

Technical Field

[0001] This invention relates to a method for preparing core printing consumables, namely, a method for preparing sheet-fed offset ink suitable for high-speed multi-color gamut printing. Background Technology

[0002] Since the world's first modular paper feed cylinder printing press was introduced in 1965, modular cylinder printing has remained the mainstream form of sheet-fed printing. At the beginning of this century, my country's printing industry began to introduce high-speed printing presses. From two-color to four-color, from eight-color to today's twelve-color, the emergence of multi-gamut, multi-unit, and multi-printing-cell high-speed printing has showcased the flourishing prosperity of the Chinese printing industry.

[0003] From four-color printing to multi-color printing, various printing formats have enabled clients to create high-quality printed products that emphasize both visual appeal and texture, showcasing a rich variety of technical means and a solid material foundation. Based on market demand, printed materials have become a medium for conveying specific aesthetic and economic value, a feast of visual pleasure shared with the market and clients. Sheet-fed offset printing presses typically support multiple color configurations, with the specific number of colors depending on the model and configuration of the equipment. For example, the ROLAND 700 series sheet-fed offset press can support 6-12 color configurations. This means that currently, equipment with up to 12 units can support printing up to 12 colors. Currently, the most common printing format in the market is four-color printing. The basic colors of four-color printing are: Cyan, Magenta, Yellow, and Black, i.e., the CMYK model. Spot colors (Pantone colors) can also be selected to meet specific printing needs. Up to 12 printing units can print 12 colors, including the CMYK primary colors (red, blue, and yellow) and various spot colors (intermediate shades derived from the three primary colors). By using computer recognition and automatic mixing, multi-gamut printing technology offers higher color fidelity and richer color expression. Compared to four-color printing, multi-color printing increases the number of color channels, resulting in better machine output and higher color fidelity. Printed materials, whether text, images, or patterns, exhibit clear, vibrant, and vivid effects. However, compared to four-color printing, multi-color printing places significantly higher demands on the printing press's ink adaptability, especially in terms of drying speed and fast curing. Due to the exponentially increased number of printing passes and the thicker ink layers, multi-color printing faces a significant challenge in maintaining the same smooth and stable transfer, consistent ink structure, and minimal or no ink fly as in four-color printing. Multi-gamut printing requires higher quality inks with stronger cohesion and better solvent release properties. Therefore, the exploration of core materials with better characteristics in ink manufacturing cannot stop there. Developing higher-grade, high-viscosity, low-tack inks to maintain the "dry on the press, dry on the paper" printability in continuous multi-gamut printing remains a relentless pursuit for industry professionals in achieving higher precision printing. In short, multi-gamut printing ink manufacturing urgently needs to solve new problems and faces new challenges.

[0004] Overprinting is a key technical feature of offset printing. Four-color offset printing uses four printing presses to reproduce the colors of the design; multi-gamut printing uses 5-12 color groups to reproduce the colors of the design through multiple overprints. Before the invention of high-molecular-weight, high-structure phenolic modified rosin resin manufacturing technology, the performance of four-color printing inks on high-speed printing presses was less than satisfactory. While the technological advancements seem to have met the ink's printability requirements for high-speed four-color printing, today's multi-gamut printing presents challenges. Four-color printing ink manufacturing technology appears inadequate, with unresolved issues requiring further exploration. Multi-gamut printing presents new challenges to ink adaptability, making the acquisition of technological breakthroughs imperative.

[0005] Most technical personnel in my country with formal training in the printing industry have read "Ink Manufacturing Technology" (published by China Light Industry Press, April 1987). They know that this textbook, a unified textbook for light industry technical schools, reveals the following information: In Section 3, "Modern Printing Inks" and "Prospects for Ink Manufacturing," the following statements are made: 1. Printing ink is one of the main raw materials for printing... With the development of high-speed printing, automation, and integrated processing... the content of ink manufacturing must undergo considerable changes. 2. Ink basically still relies on binders to transfer pigments onto the substrate; the binder, as the transfer medium and adhesive for pigments, remains unchanged. 3. Inks must develop towards rapid drying, that is, drying immediately after being printed onto the surface... to adapt to high-speed, multi-color continuous printing. Generally, resin-based offset inks will achieve results in improving curing speed, accelerating drying, improving gloss, and improving printability... 4. Ink needs to be developed with greater cohesion and lower viscosity; 5. In terms of synthetic resins, phenolic resins and alkyd resins are generally still the main components. For phenolic resins, most research focuses on using high molecular weight alkylphenols as raw materials to increase the molecular weight and oil solubility of the resin.

[0006] Influenced by textbooks and professional ethics, for many years, technicians in this field have pursued the ultimate goal of obtaining inks with high cohesion and low viscosity. However, the quantitative analysis of "inks with high cohesion and low viscosity" has been interpreted in various ways, within different stages of the industry's development. Summary of the Invention

[0007] The purpose of this invention is to provide a method for preparing sheet-fed offset inks suitable for high-speed multi-color gamut printing. This method primarily involves obtaining a phenolic resin with high polymerization strength and high solubility, combined with a suitable resin to form a resin functional body. This functional body is then mixed with vegetable oil and mineral oil to create a high-polymerization, high-solvent-release ink binder intermediate. This intermediate is then mixed with pigments and additives and milled to produce a high-polymerization, low-viscosity color offset printing ink, meeting the needs of high-precision, high-speed multi-color gamut printing in the new era. Like conventional four-color high-speed printing inks, the product of this invention maintains excellent ink quality in multi-color printing operations, characterized by fast drying, fast setting, smooth and stable transfer, and minimal or no ink fly-off.

[0008] In order to achieve good printability of ink, this invention starts from the production of resin. Specifically, it limits the mass ratio of reactants and the resin process flow. It uses a resin functional body composed of a high-polymerization resin and a compatible resin as the core material of the ink. With the functional body as the core, it achieves a new function of highly adaptable ink and obtains technical effects that ordinary technicians in the industry cannot predict.

[0009] High-polymerization-strength, high-solubility resins possess the chemical characteristics of high molecular weight and high structure. Combined with compatible resins—high-polymerization-strength, medium-viscosity, high-solubility resins, low-viscosity, high-solubility to infinite-solubility resins—these form the core functional combination of inks. First, they are mixed with solvents to obtain ink binder intermediates, then mixed with pigments and additives and milled to obtain new high-viscosity, low-tack ink products. This is a new ink product obtained through technological expansion, with high-polymerization-strength, high-solubility resin manufacturing technology at its core. This ink product overcomes the shortcomings of currently popular products in the multi-color printing field, filling a market gap.

[0010] The present invention achieves this by obtaining a high-polymerization-strength, high-solubility resin, using this resin as the core, and combining it with medium-viscosity, high-solubility resins and low-viscosity to high-solubility resins to form a resin combination with specific functions. Using this as the core, an ink binder is produced, giving the ink new functions and allowing it to achieve "not drying on the press, drying instantly upon contact with paper" in multi-color gamut printing operations, similar to four-color printing, thus achieving fast drying and fast setting of the printed product. This provides a technical solution to the stringent requirements of ink printability in multi-color gamut, high-precision, high-speed printing processes.

[0011] By following the established technical solutions and steps, and implementing each step sequentially, the invention product can be obtained: Manufacturing sheet-fed offset inks suitable for high-speed printing in multiple color gamuts: The ink component ratio is: 70%-80% binder intermediate, 15%-25% pigment, and 3%-10% additives. The three components should meet the requirement of 100% by weight after mixing. The binder intermediate is a high-polymerization and high-solvent-release ink binder intermediate, which includes a combination of high-polymerization and high-solubility resin and a suitable resin. It is obtained by mixing the resin functional group combination with mineral oil, vegetable oil, biological solvent and dissolving medium. The aforementioned high-polymerization-strength to high-solvent-release ink binder intermediates have the following characteristics: High-polymerization-strength, high-viscosity, low-viscosity ink binder: viscosity 200-800 (Lare dp / 25℃, resin: linseed oil 1:2); viscosity 6-14 (Tack @400r.s / 1.min); can be directly used for ink production; High-polymerization-strength, high-viscosity, low-viscosity ink binder: viscosity 500-1100 (Lare dp / 25℃, resin: linseed oil 1:2); viscosity 7-13 (Tack @400r.s / 1min); can be mixed with fluid binders before ink production; High-viscosity, low-viscosity ink fluid binder: viscosity 200-800 (Lare dp / 25℃, resin: linseed oil 1:2), viscosity 6-12 (Lare dp / 25℃, resin: linseed oil 1:2); ... Tack@400rpm / 1min); can be mixed with gum oil to produce ink; low viscosity, high solubility ink wetting binder, viscosity 100-700 (Lara dp / 25℃ resin: linseed oil 1:2); viscosity 11-15 (Tack@400r.s / 1.min); can be mixed with other binders to produce ink; The aforementioned high-polymerization-strength, high-solubility resin and its compatible resins have the following characteristics: High-polymerization-strength, high-solubility resin; testing indicators: viscosity 600-1500 seconds (resin: linseed oil 1:2; tubular viscosity, line to line, measured at 25℃); n-heptane number 23ml / 2g-8ml / 2g; High-polymerization-strength, medium-viscosity to high-solubility resin; testing indicators: viscosity 80-380 seconds (resin: linseed oil 1:2; tubular viscosity, line to line, measured at 25℃); n-heptane number 150ml / 2g-10ml / 2g; Low-viscosity to high-solubility or infinite-solubility resin; testing indicators: viscosity 7-120 seconds (resin: linseed oil 1:2; tubular viscosity, line to line, measured at 25℃); n-heptane number 50ml / 2g to fully soluble / 2g; The manufacturing method of multi-gamut ink is as follows: Using a high-polymerization, high-solubility resin as the core, and combining it with suitable resins, a resin combination with specific functions is formed. This combination is then mixed with a solvent to obtain a high-polymerization, high-solvent-release ink binder intermediate. This intermediate is then mixed and ground with pigments and additives to obtain an ink with high cohesion and low viscosity. This ink has good fluidity, strong adhesion, excellent solvent release, extremely fast drying speed, and rich color gradation, making it suitable for high-precision, high-speed multi-gamut printing on single sheets. The pigments mentioned are general-purpose organic or inorganic pigments manufactured using printing inks; such as iron series, copper series, graphite, titanium series, benzidine yellow, permanent yellow, permanent red, fast red, phthalocyanine blue, green and other organic pigments, etc. The additives include fillers, diluents, anti-skinning agents, anticoagulants, waxes, or chemical products for specific purposes, as well as mixtures of two or more, such as titanium dioxide, starch, plastic monomers, gasoline, methanol, ethanol, propanol, low-polyethylene, turpentine, aromatic hydrocarbon solvents, etc.

[0012] The raw material ratios for manufacturing sheet-fed offset inks for high-speed multi-color gamut printing, including high-polymerization-strength, high-solubility resins and compatible resins, are as follows: For high-polymerization-strength, high-viscosity, and high-solubility resins, the weight ratio of alkylphenol to paraformaldehyde is 3.0-2.5:1, and the ratio of phenolic resin to rosin is 1.3-1:1; For high-polymerization-strength, medium-viscosity, and high-solubility resins, the weight ratio of alkylphenol to paraformaldehyde is 3.5-2.8:1, and the weight ratio of phenolic resin to rosin is 1.5-1:1; For low-viscosity, high-solubility, or infinitely soluble resins, the weight ratio of alkylphenol to paraformaldehyde is 4.0-3.0:1, and the ratio of phenolic resin to rosin is 1.3-1:1. The manufacturing process of sheet-fed offset inks for multi-color gamut high-speed printing involves three reaction stages: a high-polymerization, high-solubility resin and a suitable resin. The high-molecular-weight methyl phenolic condensate reaction section also has two stages: a linear condensation stage and a macromolecular condensation stage. Linear condensation: First, an organic solvent is added to the reactor, followed by an appropriate amount of phenolic resin and an acid catalyst. Under the action of the acid catalyst, the phenolic resin condensate rapidly generates a large amount of high-molecular-weight methyl phenolic condensate in a weakly acidic environment in the organic solvent. The reaction lasts 3-7 hours. After obtaining sufficient linear condensate, the amount of aldehyde added stops the linear condensation reaction, and the reaction proceeds to the macromolecular condensation stage. Macromolecular condensation: The amount of aldehyde added to the reactor, along with an alkaline catalyst, terminates the linear condensation. At this point, the phenolic resin ratio is 3.0-2.5:1, 4.0-3.0:1, or 4.0-3.0:1. The phenolic resin condensate reacts in an alkaline environment for 1-5 hours at a reaction temperature of 60℃-110℃. Through these two stages of reaction, the high-molecular-weight methyl phenolic condensate product is obtained. In the rosin acid isomerization and addition reaction section, the methyl phenolic condensate is slowly and evenly added dropwise to the rosin solution. This slow and even addition allows the phenolic resin to undergo an addition reaction with the rosin while simultaneously promoting the isomerization reaction of the rosin acid. The reactor temperature is 180℃-250℃; the reaction time is 3-12 hours. In the esterification and chain extension reaction section, after the isomerization and addition reaction of the rosin acid is completed, a polyol is added to the reactor to continue the reaction. During this process, linear resin may be added for chain extension depending on the target product requirements. This aims to obtain a resin with high polymerization strength, high viscosity, and high solubility to meet the preset specifications. The reactor temperature is 200℃-265℃; the reaction time is 8-16 hours. The phenol used in the resin production is an alkylphenol with the molecular formula C6H5O-R (R being alkyl), including but not limited to one or more mixtures of tert-butylphenol, octylphenol, nonylphenol, and dodecylphenol; the aldehyde used in the resin production is paraformaldehyde, also known as solid formaldehyde, a mixture of linear short-chain polyoxymethylene glycols with the chemical formula HO(CH2O)nH, where n ranges from 8 to 100; the required acid catalyst is sulfuric acid and other water-soluble acids, selected from oxalic acid and sulfonic acid; the required base catalyst is calcium hydroxide or volatile base, selected from one or more mixtures of ammonia, methylamine, ethylenediamine, hexamethylenediamine, dimethylamine, trimethylamine, aniline, triethylenediamine, dimethylcyclohexylamine, and hexamethylenetetramine; the required solvent is low-linear-chain mineral oil, low-aromatic mineral oil, all-vegetable oil, biomass solvent, environmentally friendly solvent, with high-boiling-point kerosene, non-aromatic mineral oil, soybean oil, linseed oil, rapeseed oil, and tung oil being selected; Among the solvents mentioned above, low-linear-chain mineral oils refer to mixtures of refined liquid hydrocarbons derived from petroleum, mainly including linear-chain and branched alkanes and alkyl-substituted cycloalkanes (MOSH). Low-aromatic mineral oils refer to two main categories: alkyl-substituted aromatic hydrocarbons (MOAH). They also contain trace amounts of non-alkyl-substituted polycyclic aromatic hydrocarbons and sulfur- and nitrogen-containing compounds. Examples include various highly soluble gasolines, diesel, kerosene, ethanol, chloroform, low-carbon-chain alkanes, industrial lubricating oils (engine oils), and high-boiling-point aromatic mineral oils (benzene-based aromatic oils, such as toluene, xylene, ethylbenzene, etc.), as long as they can be easily diluted with the resin to form a homogeneous mixture.

[0013] The rosin mentioned is solid rosin formed by distillation of pine tree contents obtained by artificial harvesting or high-oil rosin, a by-product of the papermaking industry; longitudinal acid is the main substance in the addition reaction of rosin and phenolic resin. The longitudinal acid content of rosin from Masson pine in China is the highest, reaching more than 61%; the isomerization reaction can promote the isomerization of other rosin acids into longitudinal acid, so that the effective reactants account for more than 80% of the total input. The polyol required for the esterification stage is one or a mixture of two or more of ethylene glycol, glycerol, diglycerol, pentaerythritol, and dipentaerythritol; the weight ratio is 8%-14% of the rosin added; the chain extender is a linear phenolic resin or petroleum resin.

[0014] To manufacture sheet-fed offset inks for multi-gamut high-speed printing, in order to obtain the high-polymerization-strength to high-solvent-release ink intermediates, it is necessary to select 1-2 high-polymerization-strength, high-solubility resins and combine them with 1-3 other suitable resins to form a resin functional resin combination. The resin combination is then mixed with a solvent. A gelling agent can be used during the mixing process, with a dosage of 0%-3% of the total mass. This includes the use of little or no alkyd resin or TXIB. The manufacturing method for sheet-fed offset inks suitable for multi-gamut high-speed printing is characterized by two methods for mixing the high-polymerization-strength to high-solvent-release ink intermediates with pigments: a direct method and an indirect method. The direct method involves directly using the binder to mix with the pigments to form the ink. The indirect method involves pre-mixing the adhesive binder and the fluid binder according to a predetermined weight ratio to achieve a preset target before mixing them with the pigments to form the ink. A method for manufacturing sheet-fed offset inks suitable for high-speed printing in multiple color gamuts, characterized in that the wetting binder can be used to prepare high-solids-content pigment wet powder, or to prepare printing varnish, ink thinner, or ink conditioning oil.

[0015] The ink compatibility requirements for multicolor (5-12 color) printing presses cannot be the same as those for traditional four-color printing presses. Multicolor inks also cannot be obtained from the readily available resin synthesis and binder intermediate production technologies inherited from four-color inks. For multicolor printing to maintain the same "smooth and stable transfer, non-scattering of the ink matrix, and minimal or no ink splatter" as on a four-color printing press, a breakthrough in the solvent release rate of the ink upon contact with the paper and a breakthrough in the curing rate of the ink upon contact with the substrate are necessary.

[0016] Multi-gamut printing ink is a new type of ink. Compared to four-color printing ink, multi-gamut printing ink has superior printability and is of higher quality. Its emergence will inevitably replace the original four-color printing ink. Achieving the production of such ink requires the latest resin synthesis technology, entirely new combinations of resin functional components, new binder intermediates and their constituent materials, an update to the core technologies of ink manufacturing, and the provision of new comprehensive technical solutions.

[0017] Because of the above-mentioned technical solutions and steps, the ink printability, especially the ink drying speed and curing speed, are significantly improved in this invention. Detailed Implementation

[0018] I. Preparation of resins with high polymerization strength, high viscosity, and high solubility. (The numbers ①②③ in the circles below indicate the order in which the materials are added.) High-polymerization-strength, high-viscosity, and high-solubility resins can be obtained using the following method. Technical steps: The weight ratio of alkylphenol to paraformaldehyde is set to 3.0-2.5:1, and the ratio of phenolic resin to rosin is 1.5-1:1. The phenolic resin is condensed in an organic solvent. Using both acidic and basic catalysts, and through a step-by-step condensation process, the pH of the condensation reaction system is adjusted, including the stepwise addition of paraformaldehyde, to adjust the phenolic resin ratio and generate a mixture of linear and macromolecular condensates. The multi-component methyl phenolic resin is synthesized in a reactor at a temperature of 65℃-120℃. The reactor temperature is raised to 200℃, and the multi-component methyl phenolic resin liquid is dropwise added to the molten rosin. During the addition reaction of phenolic resin and rosin acid, the isomerization of rosin acid is simultaneously promoted, increasing the reactants. A polyol is added, and the esterification reaction is completed in the reactor at a temperature of 250℃-280℃. Linear resins (phenolic resin or petroleum resin) can be added for miscibility and chain extension during this process. By following the above chemical reaction steps one by one, a high-viscosity, highly soluble phenolic modified rosin ester can be obtained.

[0019] Example 1: Preparation of a resin with high polymerization strength, high viscosity, and high solubility. Experimental code: HR1000G.

[0020] Raw material formula: (I) Dodecylphenol (99.99%) 2100g, Octylphenol (99.99%) 2790g, Paraformaldehyde (92%)① 600g, Paraformaldehyde② 1350g, Water-soluble acid catalyst 3g, Calcium hydroxide 15g, Soft water① 90g, Xylene① 580g, Xylene② 1160g, Sulfuric acid (95%) 12g, Soft water② 100g, Soft water③ 300g, Masson pine rosin (Grade 1) 5520g, Glycerin (95%) 660g, Linear resin 300g. (II) Condensation reaction section: Preparation of methyl phenolic resin. Linear condensation: Add xylene①, octylphenol, and nonylphenol to a reactor, heat to 65℃, start stirring, maintain the reactor temperature at 55-65℃, and after dissolution, add paraformaldehyde①, then add an acid catalyst. Observe the self-heating reaction process and control the temperature to 80℃-85℃. After stirring for 1 hour, heat to 95℃-100℃ and react for 2-4 hours. Check the viscosity and the reaction progress. Cool down to 70℃. Alkaline condensation: Add paraformaldehyde②, an alkaline catalyst, and soft water① to a reactor. Heat to 95℃-100℃ for 1 hour, control the temperature and react for 3-5 hours, then cool down to 90℃. Add xylene②, sulfuric acid, soft water②, and soft water③, cool down to 70℃, maintain the temperature and stir for 1 hour, let stand for 1-3 hours, drain and filter to obtain a high-viscosity, highly soluble methyl phenolic resin. (III) Resin Preparation: Rosin (liquid) is added to a reactor and kept at 200℃ with stirring for 8-16 hours. During this time, methyl phenolic resin is added dropwise to the molten rosin liquid. Once the viscosity reaches the set value, glycerol and zinc oxide are added for esterification. The temperature is raised to 250℃-265℃, stirred, and kept at this temperature for 3 hours. Linear resin is then added, and the reaction is continued with stirring and holding for 12-16 hours. Samples are taken to test the viscosity, n-heptane number, and acid value. Once the set values ​​are reached, the material is discharged. This yields HR1000G high-viscosity, high-solubility resin. Viscosity (resin: linseed oil 1:2; tubular viscosity, line to line, measured at 25℃) ≥ 1000 seconds; n-heptane number ≥ 8 ml / 2g.

[0021] II. Preparation of high-polymerization-strength, medium-viscosity, and highly soluble resins.

[0022] A high-polymerization-strength, medium-viscosity, and highly soluble resin can be obtained using the following method. Technical steps: Set the weight ratio of alkylphenol to paraformaldehyde to 3.5-2.8:1, and the ratio of phenol to rosin to 1.5-1:1. Condense the phenol in an organic solvent. Using both acidic and basic catalysts, perform a stepwise condensation process, adjusting the pH of the condensation reaction system, including the stepwise addition of paraformaldehyde, and adjusting the phenol-formaldehyde ratio to generate a mixture of linear and macromolecular condensates. Synthesize the multi-component methyl phenolic resin in a reactor at 65℃-120℃. Raise the reactor temperature to 180℃ and dropwise add the multi-component methyl phenolic resin to molten rosin. During the addition reaction of the phenolic resin and rosin acid, simultaneously promote the isomerization of rosin acid, increasing the reactants. Add a polyol, and complete the esterification reaction in a reactor at 220℃-280℃. This process can optionally involve adding a linear resin (phenolic resin or petroleum resin) for miscibility and chain extension. By following the above chemical reaction steps one by one, a phenolic modified rosin ester with high polymerization strength, medium viscosity, and high solubility can be obtained.

[0023] Example 2, Experiment code XY300.

[0024] Raw material formula: (I) Octylphenol (99.99%) 3000g, Paraformaldehyde (92%) ① 368g, Acidic catalyst 2.5g, Paraformaldehyde ② 563g (92%), Calcium hydroxide 9.7g, Soft water ① 80g, Xylene ① 380g, Xylene ② 1200g, Sulfuric acid (95%) 15g, Soft water ② 100g, Soft water ③ 350g, Rosin 2800g, Zinc oxide 20.6g, Glycerin (95%) 320g, Tung oil 50g, Linear resin 300g. (II) Process. Condensation reaction section: Linear condensation. Add xylene① and octylphenol to the reactor, heat to 65℃, start stirring, maintain the reactor temperature at 55-65℃, and after dissolution, add paraformaldehyde①, then add an acid catalyst after dissolution. After the autothermal reaction, control the temperature at 80℃-85℃ and maintain it for half an hour. After the temperature stabilizes, raise the temperature to 96℃-98℃, check the viscosity until it reaches the set value, and then cool down to 70℃. Alkaline condensation: Add paraformaldehyde②, calcium hydroxide, and soft water① to the reactor, heat to 96℃-98℃, control the temperature and react for 2-4 hours, raise the temperature to 110℃, add tung oil and continue the reaction for 1 hour, cool down to 90℃, add xylene②, sulfuric acid, soft water② and③, cool down and let stand for 1 hour, drain and filter to obtain a medium viscosity, highly soluble methyl phenolic resin. (III) Resin Preparation: Rosin (liquid) is added to a reactor, heated to 180℃, stirred and kept at this temperature for 6-12 hours. During this time, methyl phenolic resin is added dropwise to the rosin liquid. Once the viscosity reaches the set value, glycerol and zinc oxide are added for esterification. The temperature is raised to 230℃-260℃, and the reaction is carried out for 3 hours. Linear resin is then added, and the reaction is continued for another 6-12 hours with stirring. Samples are taken to test the viscosity, n-heptane number, and acid value. Once the values ​​meet the standards, the material is discharged and cooled. A medium-viscosity, highly soluble resin is obtained.

[0025] Resin testing: Viscosity (resin: linseed oil 1:2; tubular viscosity, line to line, measured at 25℃) 280-360 seconds; n-heptane number 18-25 ml / 2g.

[0026] III. Preparation of low-viscosity, high-solubility or infinitely soluble resins.

[0027] The following method can be used to obtain resins with low viscosity and high solubility or unlimited solubility. Technical steps: Set the weight ratio of alkylphenol to paraformaldehyde to 4.0-3.0:1, and the ratio of phenol to rosin to 1.5-1:1. Condense the phenol in an organic solvent. Use acidic and basic catalysts respectively, and through a staged condensation step, adjust the pH value of the condensation reaction system, including the stepwise addition of paraformaldehyde, and adjust the phenol-formaldehyde ratio to generate a mixed reactant of linear condensate and macromolecular condensate. Complete the synthesis of multi-component methyl phenolic resin in a reactor at 65℃-120℃. Raise the reactor temperature to 180℃, and add the multi-component methyl phenolic resin solution all at once, stepwise, or dropwise to the molten rosin. After the addition reaction is complete, add a polyol, raise the temperature to 220℃, and complete the esterification reaction in a reactor at 220℃-280℃. Following the above steps, low viscosity, high solubility to unlimited solubility phenolic modified rosin esters can be obtained.

[0028] Example 3, Experiment code XY08G.

[0029] Formula and process: 10000g dodecylphenol (95%), 2300g tert-butylphenol, 3080g paraformaldehyde (92%), 20g calcium hydroxide, 3g water-soluble acid catalyst, 35g soft water ①, 1500g xylene ①, 1000g xylene ②, 24g oxalic acid, 30g sulfuric acid, 150g soft water ②, 350g soft water ③, 12600g grade 1 rosin, 120g zinc oxide, 1512g glycerol (95%). Condensation reaction section, acidic condensation: Xylene①, tert-butylphenol, and dodecylphenol are added to the reactor, the temperature is raised to 65℃, stirring is started, and the reactor temperature is maintained at 55-65℃. After dissolution, paraformaldehyde is added, followed by oxalic acid, sulfonic acid, and soft water①. The temperature is raised to 80℃-85℃ and held for 1 hour. After the temperature stabilizes, the temperature is raised to 96℃-98℃ and held for 2-4 hours. The viscosity is checked and, after reaching the set value, the temperature is lowered to 70℃. Alkaline condensation: Calcium hydroxide (an alkaline catalyst) and soft water② are added to the reactor, the temperature is raised to 96℃-98℃, and the reaction is maintained for 2-4 hours until the viscosity reaches the set value. The temperature is lowered to 90℃, and xylene②, sulfuric acid, and soft water③ are added. The temperature is lowered to 70℃, and the mixture is stirred and held for 1 hour. After standing for 1 hour, the mixture is drained and filtered to obtain an infinitely soluble methyl phenolic resin. Resin preparation: Rosin is added to a reactor and heated to 180℃. Stirring and maintaining the temperature for 3-6 hours is carried out. During this time, methyl phenolic resin is added dropwise to the molten rosin solution. Once the viscosity reaches the set value, glycerol and zinc oxide are added. The temperature is raised to 250℃-260℃, and the reaction is carried out with stirring for 6-12 hours. Samples are taken to test the viscosity, n-heptane number, and acid value. Once the viscosity, n-heptane number, and acid value meet the standards, the reactor is opened and the material is discharged. This yields a resin with unlimited solubility.

[0030] Resin testing: Viscosity (resin: linseed oil 1:2; tubular viscosity, line to line, 25℃) 12 seconds - 7 seconds; n-Heptane number: infinite ml / 2g.

[0031] IV. Production of high-polymerization-strength, high-viscosity, low-tack ink binders (direct method, which can be directly used for grinding with pigments).

[0032] High-polymerization-strength, high-viscosity, low-tack ink binder can be obtained by the following method. Technical steps: Obtain 2-4 parts of a high-viscosity, high-solubility resin and a suitable resin to form a resin functional group. Add this mixture, along with a solvent and dissolving medium, to a reaction vessel. Heat and stir to mix, maintaining the temperature between 180℃ and 220℃ for 3-8 hours to obtain the high-polymerization-strength, high-viscosity, low-tack ink binder.

[0033] Example 4, Experiment code HR1000G: Formulation and Process: ① Select a high viscosity, high-solubility resin with a viscosity (resin: linseed oil 1:2; tubular viscosity, line to line, measured at 25℃) of 1000-1200 seconds and a n-heptane number of 10-12 ml / 2g. Select a medium viscosity, high-solubility resin, model XY120, with a viscosity of 150-230 seconds (line to line) / 25℃ and a n-heptane number of 22-40 ml / 2g. Select a low viscosity, infinitely soluble resin, XY08G. Viscosity 8-12 seconds (line to line) / 25℃, n-heptane value unlimited (ml / 2g); ② Combine 22 parts by weight of high viscosity, high solubility resin HR1000G, 12 parts by weight of medium viscosity resin XY120, and 6 parts by weight of unlimited solubility resin XY08G to form a functional resin combination. Mix this resin combination with 18 parts of linseed oil, 6 parts of alkyd resin, and 36 parts of kerosene with a boiling point above 280°C in a reactor and heat to mix at 180-220℃. After thorough mixing, cool for later use. Sampling and testing: Viscosity (Lare) 780-850 mPa·s, yield value 8000-12000 mPa / 25℃, viscosity 9-10 @ 400 r / min.

[0034] 5. Produce high-polymerization-strength to high-viscosity, low-viscosity gum oil (indirect method, after being adapted with fluid binder, it is then used to make ink).

[0035] High-polymerization-strength to high-viscosity, low-tack adhesive oil binder can be obtained by the following method. Technical steps: Use a high-viscosity, high-solubility resin as the main component, and 1-2 parts of a suitable resin to form a resin functional group. Add this group, along with solvent and dissolving medium, to a reaction vessel. Heat and stir to mix, controlling the temperature between 180℃ and 220℃, for 3-8 hours to obtain a high-polymerization-strength to high-viscosity, low-tack adhesive ink binder.

[0036] Example 5, Experiment code GL 1000: Select high-viscosity, high-solubility resin HR1000G (viscosity 1000-1200 seconds, line-to-line) / 25℃, n-heptane number 10-12 ml / 2g); low-viscosity, high-solubility resin XY50L (viscosity 50-80 seconds, n-heptane number 120-150 ml / 2g). Resin composition: HR1000G 23 parts by weight, XY08L 18 parts by weight; Gum oil preparation: resin composition 41 parts, linseed oil 15 parts, alkyd resin 10 parts, alkane solvent with boiling point above 280°C 34 parts. Process: Feed the materials into the reactor, heat and mix, control the temperature at 180-220℃, and cool after thorough dissolution by stirring. Sampling and testing: Viscosity (Lare / 25℃) 800-1100 mpa.s, yield value 16000-20000 mpa.s, n-heptane number 10 ml / 2 g, viscosity 12-10 @ 400 r / 1.min.

[0037] VI. Production of high-polymerization-strength, low-viscosity, and highly soluble fluid oil. (Indirect method, after compatibility with colloidal binders, ink is then produced).

[0038] High-polymerization-strength, low-viscosity, and highly soluble fluid oil can be obtained using the following method. Technical steps: Use a high-polymerization-strength, medium-viscosity, and highly soluble resin as the main component, and combine it with 1-2 parts of a suitable resin to form a resin functional group. Add this group, along with the solvent and dissolving medium, to a reaction vessel. Heat and stir to mix, maintaining the temperature between 180℃ and 220℃ for 3-8 hours to obtain a high-polymerization-strength to high-viscosity, low-viscosity fluid oil binder.

[0039] Example 6, Experiment code GL 300: Preparation of the liquid oil: ① Obtaining the resin functional group combination. Prepare medium viscosity, high solubility resin XY300 with a viscosity of 250-320 seconds (line to line) / 25℃ and a n-heptane number of 18-24 ml / 2g; and low viscosity, high solubility resin XY80R with a viscosity of 60-80 seconds (line to line) / 25℃ and a n-heptane number of 120-150 ml / 2g. The resin combination consists of 20 parts of XY300, 18 parts of XY80R, 8 parts of alkyd resin, 16 parts of linseed oil, 38 parts of soybean oil (solvent), and 3 parts of xylene (diluent). Add these to a reaction vessel and mix. ② Process: Heat the above materials in a reaction vessel to 180-220℃. Stir and mix for 3-8 hours. After testing and confirming that the mixture meets the standards, cool it for use. Sampling and testing: Viscosity (Lare) 580-800 mPa·s, Yield value 5000-8000 mPa·s, Viscosity 7-9 @ 400 r / 1.min.

[0040] VII. Preparation of highly dispersed and highly concentrated pigment wetting binder.

[0041] Highly dispersed and highly concentrated pigment wetting binder can be obtained by the following method. Technical steps: A functional resin combination with highly soluble or infinitely soluble resin is added to a reaction vessel along with a solvent and a dissolving medium. The mixture is heated and stirred for 3-8 hours at a temperature controlled between 160℃ and 200℃ to obtain a highly dispersed and highly concentrated pigment wetting binder.

[0042] Example 7, Experiment code L008: Formulation and Process. Formulation: Infinitely soluble resin XY08L, viscosity 8-12 seconds (line to line) / 25℃, n-heptane number unlimited (ml / 2g), 22 parts XY08L, 8 parts linseed oil, 73 parts non-aromatic mineral oil with a boiling point above 280°C; Process: Feed the materials to the reactor for heating and mixing, controlling the temperature at 160-180℃. After stirring and dissolving, test to ensure compliance, then cool for use. Sampling and Testing: Viscosity (Lare) 300-500 mPa·s, yield value N / A, viscosity 14-16 @ 400 r / 1.min).

[0043] 8. Production of high-polymerization-strength, high-viscosity, low-tack inks (indirect method, mixing of colloidal oil binder and fluid binder, followed by mixing and grinding with pigments).

[0044] Example 8, Experiment code: XY2015INK.

[0045] The gum oil is added to the fluid binder according to the formula to obtain the sheet-fed ink binder. The standard formula ratio is between 3:7 and 4:6 (adjusted according to different colors and the technician's understanding). The wetting binder and pigment (filter cake) are added to a kneader and kneaded to obtain wet powder (base ink). Ink production formula: 16-24 parts wet powder, 65-75 parts binder, and 100% nano calcium hydroxide. After being mixed evenly in a mixing tank, it is sent to a bead mill for grinding and a three-roll mill for milling to form tiny particles of solvent and pigment. After sampling and testing to ensure compliance, it is sent to the filling line for filling to obtain the finished ink.

[0046] Printability test report for Xinyuan Ink products using this technical solution (not the final printability test report for the final product): Red: Flowability (mm) 40, Fixation speed 4'30", Drying time 26-30", Larrey viscosity Pa·s 31, Gloss 80.2, Yield value Pa 420.31, Viscosity 8.8 @ 400r / 1min Yellow: Flowability (mm) 36, Fixation speed 5'20" Drying time ḥ 26-30, Larey viscosity Pa.s 26.84, Gloss 89.2, Yield value Pa 182.65, Viscosity 8@400r / 1min Blue: Flowability (mm) 39, Fixation speed 4'20" Drying time ḥ 26-30, Larrey viscosity Pa.s 31.39, Gloss 73, Yield value Pa 250, Viscosity 7.6@400r / 1min Black: Flowability (mm) 38.5, Fixing speed 4'20" Drying time ḥ 26-30, Larrey viscosity Pa.s 42.39, Gloss 80.2, Yield value Pa 238.5, Viscosity 7.8 @ 400r / 1min A comparison of the printing suitability of "Xinyuan" ink produced by Guangxi Xinyuan Ink & Chemical Co., Ltd., an enterprise authorized to use the invention technology, with mainstream four-color inks on the market:

[0047] Compared to the four-color inks popular in the market, the target product of this invention has outstanding performance characteristics that distinguish it from popular products, namely, higher viscosity and lower tackiness; that is, while maintaining appropriate fluidity, it achieves faster ink setting speed and shorter drying time. (Data is from pilot-scale testing, not finalized product technical specifications).

[0048] IX. Production of high-speed printing inks and varnishes: Example 9, Experiment code: GL1200 Formulation and Process: Select high-viscosity resin HG1200R with the following specifications: viscosity ≥ 1200 seconds, line-to-line / 25℃, n-heptane number ≥ 8 ml / 2g. Select low-viscosity, high-solubility resin XY80R with a softening point of 145-163℃, viscosity 80-120 seconds (line-to-line) / 25℃, and n-heptane number ≥ 50 ml / 2g. Mix 18 parts by weight of high-viscosity, high-solubility resin HG1200R, 22 parts by weight of low-viscosity, high-solubility resin XY80R, 26 parts by weight of linseed oil, 10 parts by weight of alkyd resin, and 24 parts by weight of mineral oil with a boiling point of 280°C in a reactor. Heat and mix at a controlled temperature of 180-220℃. After thorough dissolution by stirring, cool before use. Sampling and testing: Viscosity (Lare) 420 Pa·s, Yield value 1200 Pa, n-Heptane number 10 ml / 2 g, Viscosity 8 @ 400 r / 1.min.

[0049] The aforementioned highly dispersed and concentrated pigment wetting binder can be combined with various pigment cakes to form high-solids-content wetting pigments (base inks) for use in the production of four-color and multi-gamut sheet-fed inks. 10. Conclusion.

[0050] By obtaining a combination of a high-polymerization-strength, high-solubility resin and a compatible resin, and then combining a high-functionality core resin with the compatible resin and mixing it with a solvent, a high-polymerization-strength and high-solvent-release ink binder intermediate is prepared. This ink intermediate is then mixed and ground with pigments and additives to obtain an ink with high cohesion and low viscosity. In this process, obtaining a high-polymerization-strength, high-solubility resin and its compatible resin to form a core material with specific functions, generating the ink intermediate—the component with the largest proportion of the ink paste—is the core technical aspect of this invention. Each step requires arduous effort. The production of an ink with high cohesion and low viscosity depends on obtaining a high-polymerization-strength, high-solubility resin and its compatible resin to form a functional resin combination.

[0051] If ink manufacturing aims to maintain the stability of ink transfer throughout the printing process, then multi-gamut printing ink manufacturing aims for stability throughout the high-speed multi-color overprinting process, that is, maintaining the ink's high viscosity and low stickiness characteristics throughout the entire high-speed multi-color printing process. The technical solution provided by the inventors demonstrates a new function generated by blending high-polymerization, high-solubility resins with compatible resins. The formation of the new functional body originates from the blending of high-molecular-weight, high-structure reactants with long-chain molecular reactants within the reactants. After blending, a high-viscosity, high-solvent-release ink binder intermediate is obtained, which is then milled with pigments to finally obtain a new ink product with high cohesion and low viscosity.

[0052] The ink obtained according to this invention has high cohesive strength and low viscosity, exhibiting strong adhesion, fast drying speed, and excellent solvent release properties. It is a high-quality ink rarely seen on the market to date. It can meet the requirement of maintaining continuous high-speed transfer stability throughout the entire multi-color gamut printing process. After obtaining the high-polymerization resin, the inventors devoted considerable effort to its application. Only after discovering the suitable resin and the new functions formed by resin combinations did they discover the new properties of the new ink product. This property is based on the highly printable ink produced from a high-polymerization, high-solvent-release intermediate—that is, a new ink product with high cohesive strength and low viscosity.

Claims

1. A method of making a single sheet offset ink suitable for multi-color gamut high speed printing, characterized by: The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive 3%-10%, and the three components are mixed to meet the requirement of 100% of the overall weight ratio; The high polymerization to high solvent release ink binder intermediate is obtained by mixing mineral oil, vegetable oil, biological solvent and dissolving medium; the ink component ratio is: binder intermediate 70%-80%, pigment 15%-25%, and additive (3) Low viscosity, very high solubility to infinite solubility resin, physical characteristics: viscosity of 7 seconds - 120 seconds (resin: linseed oil 1:2; tube viscosity, line to line, 25℃ measurement); n-heptane value 25ml / 2g - full solution / 2g; High polymerization high solubility resin combined with adaptive resin as resin functional body, adaptive ratio set according to technical parameters; The multi-color domain printing ink manufacturing method is as follows: With high polymerization high solubility resin as the core, combined with adaptive resin, a functional resin combination is formed, the resin combination is mixed with a solvent to prepare a high polymerization high solvent releasing property ink vehicle intermediate, the vehicle is mixed and ground with pigments and additives to obtain an ink with greater cohesion and less viscosity; The pigments are general organic or inorganic pigments used in printing ink manufacturing; The solvent is mineral oil and vegetable oil, including high-boiling kerosene, low-aromatic mineral oil, soybean oil, linseed oil, rapeseed oil, tung oil, and biomass environmentally friendly solvent; The additives include fillers, diluents, anti-skinning agents, anti-coagulants, waxes, or certain chemical products with specific purposes; The dissolving medium is alkyd resin and gelling agent TXIB.

2. The manufacturing method of cut sheet offset ink for adaptive multi-color gamut high speed printing according to claim 1, characterized by, The manufacturing method of the high polymerization high solubility resin and the adaptive resin is as follows: The raw material ratio of the high polymerization high viscosity and high solubility resin is: the weight ratio of alkyl phenol to polyformaldehyde is 3.0-2.5:1, and the weight ratio of phenolic aldehyde to rosin is 1.5-1:1; The raw material ratio of the high polymerization medium viscosity and high solubility resin is: the weight ratio of alkyl phenol to polyformaldehyde is 3.5-2.8:1, and the weight ratio of phenolic aldehyde to rosin is 1.5-1:1; The raw material ratio of the high solubility or infinite solubility resin is: the weight ratio of alkyl phenol to polyformaldehyde is 4.0-3.0:1, and the weight ratio of phenolic aldehyde to rosin is 1.5-1:1; The above resin synthesis process goes through three reaction stages, namely, high molecular phenolic aldehyde reaction stage, rosin acid isomerization and addition reaction stage, esterification reaction and chain extension synthesis stage; (1) The high molecular phenolic aldehyde reaction stage also goes through two stages of reaction, namely, linear condensation stage and macromolecular condensation stage; linear condensation, first add organic solvent to the reactor, then add appropriate amount of phenolic aldehyde and acid catalyst, under the action of acid catalyst, in organic solvent, phenolic aldehyde condensate quickly generates a large amount of high molecular phenolic aldehyde condensate, reaction for 3-7 hours, after obtaining enough linear condensate, add the reaction amount of aldehyde, enter the macromolecular condensation stage; add alkaline catalyst in the reaction kettle, linear condensation is terminated; at this time, the ratio of phenolic aldehyde can be set to 3.0-2.5:1 or 4.0-3.0:1 or 4.0-3.0:1; reaction for 1-5 hours in weak alkaline environment, reaction temperature 60℃-110℃; after going through two stages of reaction, high molecular phenolic aldehyde condensation reaction liquid can be obtained; (2) Rosin acid isomerization and addition reaction stage, slowly and evenly drop the phenolic aldehyde condensation liquid into the rosin solution, slowly and evenly drop to let the phenolic aldehyde and rosin promote the isomerization reaction of rosin acid in the addition reaction, kettle temperature 180℃-250℃; use time 3-12 hours; (3) esterification and chain extension synthesis section, after the completion of the isomerization and addition reaction of rosin acid, polyols are added to the reaction kettle for subsequent reaction, linear resin is added during the reaction process for chain extension, and finally a resin with high polymerization, high viscosity and high solubility is obtained, the kettle temperature is 200-265℃, and the time is 8-16 hours; The raw material phenol required for producing the resin is an alkyl phenol; the molecular formula is C6H5O-R (R is an alkyl group), including one or a mixture of more than one of tertiary butyl phenol, octyl phenol, nonyl phenol, and dodecyl phenol; The raw material aldehyde required for producing the resin is paraformaldehyde, also known as solid formaldehyde, which is a mixture of linear short-chain polyoxymethylene glycol, and its chemical formula is HO(CH2O)nH, wherein n is in the range of 8 to 100; The acid catalyst required for producing the resin is sulfuric acid or / and other water-soluble acids, which can be selected from oxalic acid, sulfuric acid, or sulfonic acid; the base catalyst required can be selected from calcium hydroxide, sodium hydroxide, or volatile bases, which are selected from one or a mixture of more than one of ammonia, methylamine, ethylenediamine, hexanediamine, dimethylamine, trimethylamine, aniline, triethylenediamine, dimethylcyclohexylamine, and hexamethylenetetramine; The rosin selected for producing the resin is solid rosin obtained by distillation of the contents of pine trees harvested by artificial cutting or is the byproduct rosin of the paper industry; The resin produced is a mixture of rosin and polyols, and the polyols are one or a mixture of more than two of ethylene glycol, glycerol, diglycerol, pentaerythritol, and dipentaerythritol; the weight ratio is 8%-14% of the amount of rosin added; and the chain extension compound is linear phenolic resin or petroleum resin.

3. The method of making single sheet offset ink for adaptive multi-color gamut high speed printing according to claim 1, wherein said high polymerization force and ultra solvent-releasing ink intermediate is characterized by: The high-polymerization high-solubility resin is mixed with a suitable resin and a solvent to produce an ink vehicle with high polymerization and high solvent release; the temperature is controlled between 180-220℃; and the time is 6-12 hours.

4. The method of making a cut sheet offset ink suitable for adaptive multi-color gamut high speed printing according to claim 1, characterized in that To obtain the high-polymerization high-solubility ink intermediate, one or two high-polymerization high-solubility resins are selected and combined with one to three other suitable resins to form a resin functional body, which is then mixed with a solvent to obtain the ink vehicle; a gelling agent can be selected for the mixing process, and the amount of the gelling agent is 0%-3% of the total amount, which includes no gelling agent or a small amount of alkyd resin or gelling agent TXIB.

5. The method of making a cut sheet offset ink suitable for adaptive multi-color gamut high speed printing according to claim 1, wherein The high-polymerization high-solubility ink intermediate is mixed with pigments in two ways: one is a direct method in which the vehicle is directly mixed with pigments to produce ink; and the other is an indirect method in which the vehicle is first mixed with pigments after being pre-mixed according to the weight ratio of the formula to reach the design target.

6. The method of claim 1, wherein the single sheet offset ink for adaptive multi- gamut high speed printing is characterized by: The low-viscosity high-solubility ink vehicle can be used to prepare water-based ink, i.e., high-solid-content wetting pigments, or to prepare printing varnish or as an ink thinner.

7. The method of claim 1, wherein The ink with high cohesion and low viscosity, i.e., high-viscosity low-viscosity ink, is suitable for multi-color domain high-speed printing and is used to maintain the stability of ink spreading in multi-color group high-precision high-speed printing operations.

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