KR20060073806A - The resin composition for printing ink adhesion of a plate and print method using the same - Google Patents

Abstract

The present invention is one or more or two to four resins 25-76 parts by weight of acrylic, polyurethane, PVA, epoxy resin in order to increase the binding strength between the metal sheet and the ink, alcohol-based, diluent 20-50 parts by weight of any one or two or more compounds selected from ethylacetate, toluene, 3-20 parts by weight of silica as a printing agent, 0.001-1 parts by weight of polyethylene glycol as a wetting agent, melamine as a curing agent (B) A resin composition for bonding a live-print ink of a metal sheet having a viscosity of 200 to 400 centipoase (cps), which is composed of any compound selected from isocyanate, and a printing method using the same. will be.

Resin composition for adhesive bonding of metal sheet. Metal and ink adhesive composition.

Description

The resin composition for printing ink adhesion of a plate and print method using the same}

The present invention relates to a resin composition for real-time printing ink adhesion of a metal plate material and a printing method using the same, wherein the metal plate material (iron plate, copper plate, aluminum plate, glass plate, acrylic plate, etc.) and ink are firmly adhered to each other to increase durability. The present invention relates to a resin composition for printing ink adhesion, and to a resin composition for adhesive printing of a live printing ink on a metal plate material which is printed on a metal plate material having various shapes using the same, and a printing method using the same.

In general, the transfer method can be omitted when the base coating (adhesive) is basic or expensive colored steel sheet (adhesive coating is replaced by the color coating), and the separate transfer paper is a special paper for sublimation dye and transfer paper. It has a low price competitiveness, and after printing the actual print using a sublimation dye on a separate transfer paper, it is thermally transferred (bonded) at high temperature (150 ℃ -250 ℃), and then a little according to the minute temperature change during thermal transfer. There is a difficulty of implementing the same color by causing color change.

In addition, the full-color printing of the iron plate is usually produced using a transfer paper, but due to the relatively high price of the printing ink, the printing cost is increased and productivity and marketability are deteriorated.

In addition, the printing composition used for the metal plate is a UV curing resin that cures rapidly on a plate when subjected to ultraviolet rays, and despite the high price (more than 10 times of this product), the resolution is low when printing (up to 720 dpi). ), The surface of the final printing is rough and decisively adhesive strength (less than adhesive strength 7kgf / ㎠) is difficult to form and process bending, etc., solvent-based resin composition and solvents mainly based on solvent-based resin There is a product applied by mixing the system and the UV curing agent, but this product also has a disadvantage (low adhesion strength, low resolution, high price) due to the fragility of the resin composition composition, such as UV curing resins, the practical use is insignificant.

Other Korean Laid-Open Patent Publication No. 2000-0061767 includes the steps of editing a photograph or picture recognized and input as a scanner on a computer screen, and outputting the image on the computer screen to a transfer sheet through a printing apparatus; Base treatment such as anti-rust coating and color coating on the surface of the adherend made of metal, plastic or wood, and applying adhesive structured transparent resin to the surface of the treated material, and adhesive structured transparent water Transfer printing method using the actual output comprising the step of causing the transfer of the print layer of the transfer paper by vacuum thermal transfer on the surface of the adherend coated with the ground layer and coating a protective transparent film on the surface of the transfer layer is completed. Listed,

Publication No. 2002-0080292 discloses that the plate member is a heating device that heats the solvent ink to a temperature that can penetrate deep into the inside of the painting surface during printing, and that the plate member that is printed and discharged through the actual printing machine is solvent. It describes a method and apparatus for printing a construction guide board using a real-time printing machine which is manufactured through a drying apparatus which allows the ink to penetrate the painted surface and rapidly dryes and removes harmful gases generated during the drying process.

Publication No. 2003-0052454 discloses a composite polymer resin solution containing a first polymer resin, a second polymer resin, and an oil composed of porous microparticles, oils, surfactants, and pigments, and a surface treatment method using the same. Yes, but

Conventional techniques as described above are complicated in the printing process due to the complex device, there is a slight color change according to the minute temperature change during thermal transfer, there is a difficulty of the same color implementation, the printing cost is increased due to the relatively high price of the print composition It has low productivity and marketability, and is inconvenient in process, low resolution when printing, rough surface of final printing, and crucially low adhesive strength, making it difficult to form and process bending, etc. There has been a problem that has not been used realistically.

The present invention has been made in order to solve the above problems, and developed a resin printing ink composition for the printing of the real-time printing ink adhesive that the metal plate material (iron plate, copper plate, aluminum plate, glass plate, acrylic plate, etc.) having a variety of shapes firmly adhere to the ink. By using it, it is possible to produce a product of uniform color at all times by real-time printing on metal plate, cost-effective, fast printing speed,

It is a technical problem to be achieved by the present invention to provide a resin composition for attaching a live printing ink to a metal sheet and a printing method using the same.

In order to achieve the above object, the present invention cleans the surface of the metal plate to remove foreign substances on the surface of the plate, and then one or more or two or more of the acrylic resin, polyurethane, PVA, epoxy resin 25 to 76 parts by weight of four kinds of resins, 20-50 parts by weight of any one or two or more compounds selected from alcohols, ethyl acetate, toluene as a diluent, and 3-20 parts by weight of silica as a printable agent. , Prepare a resin composition for attaching the real-ink printing ink consisting of 0.01-1. 5 parts by weight of any one compound selected from polyethylene glycol 0.05-1 part by weight as a wetting agent, melamine or isocyanate as a curing agent,

The resin composition as an adhesive resin layer having excellent adhesion with the sheet metal and high adhesion with ink and printability is applied (coated) with a coating thickness of 6 μm, and drying can be naturally dried.

Since fast drying is required in consideration of economical efficiency, the plotter is immediately dried after drying at a temperature of 150 ° C. for a drying time of 90 seconds (by considering the printing speed: shortening the time). Real-life printing (medium) is used. As the ink used for printing, all kinds of inks such as aqueous, oil-based, and UV-curable inks can be used, but here is the most ordinary water-based pigment ink. On the other hand, in order to further increase the adhesive strength, it is possible to use a solvent-based ink, and then natural drying after halfway (real-time printing), but in the case of quick drying for time saving and drying by heat drying method, the normal ultraviolet ( UV) Blocking solution is applied with a coating thickness of 7㎛ (Top coating), the coating step is completed (Top coating), the coating step is completed, after which the natural drying is possible or due to the actual heat-drying of the metal plate material to be finally heat dried for rapid drying A resin composition for printing ink adhesion and a printing method using the same.

The main material of the resin composition for printing ink adhesion used in the present invention is composed of at least one of acrylic, polyurethane, PVA, and epoxy resins, and a diluent, a curing agent, a wetting agent, silica, and the like are mixed therein. However, the viscosity of the final composition should be composed of 200 centipoase (cps) or more in order to improve the coating performance, which is necessary for maintaining the optimum viscosity because the viscosity is less than 200 centipoase (cps) to form a suitable film thickness Is not formed, and the viscosity is higher than 400 centipoase (cps) is not only difficult to use as a coating resin solution, but also may impair the printability and adhesiveness, which is a basic property of the present resin composition.

It is composed of at least one of acrylic, polyurethane, PVA, epoxy resin, etc., which may be used by appropriately mixing one to four kinds of resins as necessary.

If the weight part is less than 25 or more than 76, the price and composition ratio cannot be properly matched, and it is difficult to maintain the basic viscosity in the resin composition. If it is out of this range, it has high adhesion, high printability (resolution) and low cost. Could not make this composition.

As a diluent used in the present invention, it is used to improve the coating performance by improving the viscosity, drying properties, etc., alcohol (alcohol), ethyl acetate (Ethylacetate), toluene (Toluene) and the like can be used,

It can also be used alone or in mixture of two kinds (e.g. methyl alcohol and isopropyl alcohol) in the same system or the above three kinds, and the ratio is composed of 20-50 parts by weight, which is chemical Although there is a slight performance change by the bonding, it does not affect the basic performance of the composition, and if the component ratio, that is, the weight part is 20 or less, it is difficult to dilute the resin composition, which is a basic function as a diluent, to improve viscosity and printability. Difficult to apply the coating performance and drying, and if the weight part exceeds 50, not only the basic composition ratio of the resin composition can be achieved but also the solubility, viscosity, and adhesion are violated.

In addition, in order to improve printability, a mixture of silica is used. In this case, silica is used in an amount of 20 to 3 parts by weight of silica having an average particle diameter of 1 to 50 μm compared to the total resin. Due to the continuous grinding, the cost may be increased (higher price), but the printability may be lower. On the other hand, when the particle size exceeds 50 µm, the surface may become rough after coating and the matte may be lost. There is a problem that can be peeled off, and when the weight part exceeds 20 parts by weight ratio, problems such as peeling and gloss decrease, printability may be reduced, and even when the weight part is less than 3, printability may be reduced due to lack of proper magnification. Can be.

As a wetting agent, it is composed of 0.05-1 parts by weight of the total resin and uses polyethylene glycol, etc. for the purpose of preventing bubbles and strengthening of adhesive performance.When the weight is less than 0.05 but more than 1, wetting function and adhesion of bubbles are prevented. Deterioration of the function may result in poor printability and adhesion.

Isocyanate-based and melamine-based curing agents are used, and 0.01-0.5 parts by weight of the total resin is used, and when the weight part is less than 0.01, the curing is not performed properly. There is a problem of reducing the problem.

For uniform dispersion and combination of resin mixtures mixed with each mixture, the mixture should be stirred for at least 3 hours to form a uniform system. If the cost is excluded as the minimum required time on the uniform combination of each component of the composition, the stirring time The higher the is, the more uniform the composition, that is, the more stable the performance.

The resin composition made of a uniform system has a thickness of 3 to 50 μm in order to maintain a stable adhesive strength of the printing ink, and is uniformly applied to prevent application stains. The resin composition may be spontaneously dried (cured), but may be rapidly dried. When curing) is required, the thermosetting method is applied.

It should be dried (cured) for more than 30 seconds (based on 2㎡) at a temperature of around 110-190 ℃. When the thickness of the coating is less than 3 μm, the basic properties (high adhesion, high printability (resolution)) of the resin composition cannot be maintained, and when the thickness of the coating exceeds 50 μm, peeling itself occurs rather than the above basic properties. (High adhesion, high printability (resolution)) cannot be maintained. In addition, the curing of the composition is distinguished from the ultraviolet curing method of the instant curing method by UV (ultraviolet rays) by the thermal curing method, when the drying temperature is less than 110 ℃ rapid drying is not properly made, the resin composition in excess of 190 ℃ There is a possibility of discoloration (yellowing) and dissolution (melting) of the coating film, and drying time should be considered the printing speed of the plotter, but it should be dried for more than 30 seconds (2㎡ standard) to maintain basic drying performance by rapid drying. In the case where the constituent material is changed to a solvent-based or epoxy-based resin by a live-print printing ink, the drying time is greatly shortened, and in some cases, heat drying (thermal curing) can be omitted.

The adhesive strength of the resin composition should be maintained at least 7kgf / ㎠ and the adhesion strength to the plate to maintain the adhesion without peeling (cracking) when bending, the composition is maintained 15-25㎏f / ㎠, The cross-hatch method, which is a general test method for adhesive strength (peel tension), should be maintained at 80% or more to prevent peeling at bending. The composition has almost 100% adhesion. have.

As the ink used in the live-action printing of the present invention, both aqueous, oil-based, and UV-curable inks may be used, and as the protective coating layer used for protecting the printing layer, the UV blocking resin is applied so that the coating thickness is 1-50 μm. do.

The actual printing ink used in the Middle (Second) Coating includes water-based ink, oil-based ink, and UV-curable ink. Among the water-based ink, there are water-based pigments resistant to UV and water-based dyes sensitive to UV. Oil-based ink has oil-based oil and solvent series. When the solvent is applied, the bond strength is stronger and UV-resistant due to chemical bonding with the composition, which is a coater. There is a disadvantage that this falls, the cost of the ink is expensive.

In addition, UV-curable inks are expensive in the form of a mixture of UV-curable inks and resins of adhesive components.They are quick-drying inks with UV (ultraviolet) illumination, and are extremely weak in printability and adhesion. Bending is a product that cannot be manufactured.

The printed composition can be applied to most products having a flat structure such as metal plate (iron plate, stainless plate, copper plate, aluminum plate, new cast plate, other metal plate) and non-metal plate material (plywood, acrylic plate, glass plate, stone plate, etc.). .

Hereinafter, the composition of the resin composition for live-printing ink adhesion of the metal sheet of the present invention will be briefly shown as follows.

division contents Parts by weight Characteristic (use) Remarks Main material (resin) Acrylic, Polyurethane, PVA, Epoxy  25-76 Low price, real photo printing resin diluent Alcohol, ethyl acetate, toluene 1 type or in mixture of 2 or more types: 20-50 Improved coating performance and drying performance by adjusting viscosity Print suitability Silica 3-20 1-50㎛ particle size improves printability Humectant Polyethylene Glycol 0.001-0.05 Bubble prevention adhesive function Hardener Melamine Formaldehyde (MF = Melamine-Formaldehyde) Type, Isocyanate Type 0.001-1 Hardening

Case (Application) Coating drying temperature and time for each process is below: 90 seconds at 150 ℃, medium (printing): more than 3 minutes of natural drying or 5 seconds at 150 ℃, and top coat (protective coating) at 150 ℃ 90 seconds (same as underpass)

The protective coating (top coat) is made of acrylic, polyurethane, PVA, and epoxy resins such as metal sheets, and a resin composition for adhering live printing ink on top and metal sheets.

Materials such as copper plate, aluminum plate, and glass may be thickened by 3 to 6 μm thicker to improve adhesion.

Drying of the present invention can be carried out by heat drying by infrared light bulb, hot air drying by hot air blower and heating system. It is 150 degreeC-200 degreeC, Preferably it is about 150 degreeC.

There is little difference in technical and quality resolution between the transfer method and the present invention, but the superiority compared to ultraviolet rays due to the difference in printing speed, printing ink, and dye and pigment is different. However, printing resolution is significantly different from existing UV-curable resins, and printing speed is also different.

Hereinafter, the present invention will be described in detail with reference to the following Examples.

Example 1

First process (preparation process)

First, the iron plate is selected from the metal plate, and the surface of the iron plate is cleaned to remove foreign substances on the surface of the plate.

2nd process (resin composition manufacturing process for adhesive printing ink)

In order to prepare resin composition for the printing of live-print ink used for metal plate, 35kg of polyurethane resin, 30kg of acrylic resin, 35kg of a mixture of methyl alcohol and isopropyl alcohol with a diluent 1: 1 by weight, and average particle size as a printing agent A mixture of 5 kg by weight of 3-8 μm silica, 0.3 kg of wetting polyethylene glycol, and 0.03 kg by weight of melamine formaldehyde as a curing agent was prepared in a uniform system by sufficient stirring for 5 hours, but the viscosity was 270 centipoa. After manufacturing and preparing to make (cps),

3rd process (resin composition for dry printing ink bonding of iron plate and drying process)

The resin composition for the actual printing ink adhering prepared in the second step as the adhesive resin layer having high adhesion and printability even with ink of the iron plate was applied to the upper part of the iron plate prepared in the first step with a thickness of 6 μm. Paint (undercoat), heat dry (heat cure) at 150 ° C. for 90 seconds in a common heat dryer, and

4th process (Steel plate printing process)

The iron plate dried in the third process is subjected to the actual printing (middle) using a conventional plotter, and the ink used for printing is the actual printing (middle) using aqueous, oil based, UV curing ink and solvent-based ink. After the actual printing (midway), the secondary drying is performed at 150 ° C. for 90 seconds in the same manner as in the third step with a thermal dryer, and then a normal ultraviolet (UV) blocking solution is applied to the upper part of the dried actual printing (midway). A protective film to be coated (coated) with a thickness of 7 μm was formed, and then dried three times at 150 ° C. for 90 seconds using a heat dryer to print an iron plate using a resin composition for real printing ink adhesion.

5th process (packaging process)

The surface of the iron plate printed as described above was packaged with a protective film (printing surface protection) to complete the product.

Example 2

First process (preparation process)

First, the iron plate is selected from the metal plate, and the surface of the iron plate is cleaned to remove foreign substances on the surface of the plate.

2nd process (resin composition manufacturing process for adhesive printing ink)

In order to manufacture resin composition for the printing of live-print ink used for iron plate, 35kg of polyurethane resin, 30kg of acrylic resin, 35kg of a mixture of methyl alcohol and isopropyl alcohol with a diluent 1: 1 by weight, and an average particle diameter of the printing agent A mixture of 5 kg by weight of silica having 3-8 μm, 0.3 kg of wetting polyethylene glycol, and 0.03 kg by weight of melamine formaldehyde as a curing agent was prepared in a uniform system with sufficient stirring for 5 hours, but the viscosity was 270 centipoase. After preparing and preparing to (cps),

3rd process (resin composition for dry printing ink bonding of iron plate and drying process)

1 to 1 weight ratio of the resin composition for attaching the actual printing ink and the conventional UV blocking solution prepared in the second step as the adhesive resin layer having the high adhesive strength with the steel plate and the high adhesive strength with the ink and the printability. The mixed mixture is coated (coated) with a coating thickness of 10 μm on the upper side of the iron plate prepared in the first step, and heat dried (heat cured) at 150 ° C. for 90 seconds in a conventional heat dryer.

4th process (Steel plate printing process)

The iron plate dried in the third process is subjected to the actual printing (middle) using a conventional plotter, and the ink used for printing is the actual printing (middle) using aqueous, oil based, UV curing ink and solvent-based ink. After the live-printing (midway), secondary drying was performed at 150 ° C. for 90 seconds in the same manner as in the third step using a heat dryer, and the iron plate was printed using the resin composition for live-printing ink bonding.

5th process (packaging process)

The surface of the iron plate printed as described above was packaged with a protective film (printing surface protection) to complete the product.

Example 3 (copper plate)

First process (preparation process)

The copper plate is selected from the metal plate, and the surface of the copper plate is cleaned to remove foreign substances from the surface of the plate.

2nd process (resin composition manufacturing process for adhesive printing ink)

30kg polyurethane resin, 32kg acrylic resin, 30kg solution of methyl alcohol and isopropyl alcohol in a 1: 1 weight ratio as a thinner to produce resin composition for live printing ink adhesion for copper plate, average particle diameter A mixture composed of 8 kg by weight of 3-8 μm silica, 0.4 kg of wetting polyethylene glycol, and 0.1 kg of melamine formaldehyde as a curing agent was prepared in a uniform system with sufficient stirring for 5 hours, but the viscosity was 260 centipoase. After preparing and preparing to (cps), the copper plate was printed by using the resin composition for real-print printing ink adhesion in the same process as in Example 1.

Example 4 (aluminum plate)

First process (preparation process)

First, the aluminum plate is selected from the metal plate, and the surface of the iron plate is cleaned to remove foreign substances from the surface of the plate.

2nd process (resin composition manufacturing process for adhesive printing ink)

30kg polyurethane resin, 30kg acrylic resin, 30kg solution of methyl alcohol and isopropyl alcohol in a 1: 1 weight ratio as a diluent to produce resin composition for live printing ink adhesion for aluminum plate, average particle diameter A mixture of 10 kg of 3-8 μm silica, 0.3 kg of wetting polyethylene glycol, and 0.05 kg of melamine formaldehyde as a curing agent was prepared in a uniform system with sufficient stirring for 5 hours, but the viscosity was 280 centipoase (cps). After preparing to prepare a), an aluminum plate was printed using the resin composition for real-print printing ink adhesion in the same process as in Example 1 below.

Example 5 (glass plate)

First process (preparation process)

Clean the surface of the glass plate to remove foreign substances on the surface of the plate,

2nd process (resin composition manufacturing process for adhesive printing ink)

In order to manufacture resin composition for real-ink printing ink adhesion for glass plates, 25kg of polyurethane resin, 35kg of acrylic resin, 33kg of methyl alcohol and isopropyl alcohol mixed with diluent 1: 1 by weight, and average particle size with printing suitability A mixture of 7 kg of silica having 3-8 μm, 0.2 kg of wetting polyethylene glycol, and 0.05 kg of melamineformaldehyde as a curing agent was prepared in a homogeneous system with sufficient stirring for 5 hours with a viscosity of 290 centipoase (cps). After preparing and preparing to make a glass plate, a glass plate was printed by using a resin composition for real printing ink adhesion in the same process as in Example 1 below.

Example 5 (acrylic plate)

First process (preparation process)

Clean the surface of the acrylic plate to remove foreign substances on the surface of the plate,

2nd process (resin composition manufacturing process for adhesive printing ink)

10kg polyurethane resin, 30kg epoxy resin, 10kg ground color pigment, 7kg solvent as diluent, 10kg silica with average particle size of 3-8㎛ as printing additive, wetting polyethylene 7 kg of glycol, and 26 kg of polyamide amine as a curing agent were added to prepare a uniform system by sufficient stirring for 5 hours, but prepared and prepared to have a viscosity of 270 centipoase (cps), as in Example 1 below. In the process, an acrylic plate was printed using a resin composition for real printing ink bonding.

Experimental Example

Adhesion strength test of the resin composition for sticking the actual printed ink prepared in Example 1 (applied to the crosshatch method): 85-95% = 15-25 kgf / cm 2 (estimate value), self-measurement,

(1) Adhesion strength of the crosshatch method: Average: 90% (1st: 90%, 2nd: 85%, 3rd: 90%, 4th: 90%, 5th: 95%)

(2) Bending test: No peeling occurred as a result of 10 times of 90 degree and 360 degree bending test (occurrence rate: 0%)

The adhesive strength of the resin composition for the live-printing ink adhesion should maintain at least 7kgf / cm2 of adhesive strength with the plate to maintain the adhesive strength without peeling (cracking) during bending. The cross-hatch method, which is a general test method for adhesive strength (peel tension), should be maintained at least 80% to prevent peeling during bending. It can be seen that it has a degree of adhesion.

The present invention as described above is a high-resolution technology, can produce a product of uniform color at all times, cost-effective, fast printing speed, the most advantageous technology for commercialization that satisfies the lowest price, and melted as an additive to improve durability By applying anti-cleaning agent, it can increase durability as a protective film against external environment such as ultraviolet rays, and it is possible to apply by mixing top, bottom and live-action printing solutions into one (integrating top, middle, and bottom) to shorten printing process and reduce cost There is an economic effect.

Claims (3)

In the resin composition for real-time printing ink adhesion of a metal sheet to increase the binding force between the metal sheet and the ink, one or more or two to four resins among acrylic, polyurethane, FVA, and epoxy resins 25 -76 parts by weight, 20-50 parts by weight of any one or two or more compounds selected from alcoholic, ethylacetate, toluene as a diluent, 3-20 parts by weight of silica as a printable agent, polyethylene glycol as a wetting agent 0.001-1 parts by weight, the curing agent is composed of one compound selected from melamine (Melamine-Formaldehyde (MF) and isocyanate) in 0.001-0.5 parts by weight, the viscosity is 200 ~ 400 centipoase (cps) A resin composition for sticking a live-print ink to a metal sheet. In the printing method using the resin composition for the actual printing ink adhesion of metal sheet material, First process (preparation process) First, clean the surface of the metal plate to remove foreign substances on the surface of the plate. Second process (manufacturing process of resin composition for adhesive printing of metal sheet material) 25-76 parts by weight of one or more or two to four resins in acrylic, polyurethane, PVA and epoxy resins, any selected from alcohols, ethylacetate, toluene as diluent 20-50 parts by weight of one or more compounds, 3-20 parts by weight of silica as a printing agent, 0.001-1 parts by weight of polyethylene glycol as a wetting agent, melamine-formaldehyde (MF) and isocyanate as a curing agent The mixture of any one compound selected from 0.001-0.5 parts by weight of the mixture is prepared to form a uniform system by sufficient stirring for 5 hours, the actual printing ink adhesion of the metal sheet to the viscosity of 200 ~ 400 centipoase (cps) After preparing and preparing a resin composition for 3rd process (resin composition for dry printing ink bonding of iron plate and drying process) The resin composition for attaching the actual printing ink prepared in the second step as an adhesive resin layer having excellent adhesion with a metal plate, high adhesion with ink and printability, and a conventional ultraviolet (UV) blocking solution are 1: 1 by weight. The mixed mixture was coated (applied) with a coating thickness of 7 to 15 μm on the iron plate prepared in the first step, and heat dried (heat cured) at 150 ° C. for 90 seconds in a conventional heat dryer. 4th process (metal plate printing process) The metal plate material dried in the third process is subjected to the actual printing (middle) using a conventional plotter, and the ink used for the printing is the aqueous printing using aqueous, oil based, UV-curable ink and solvent-based ink (middle). After the actual printing (midway), the second step of drying in 150 seconds at 150 ℃ in the same manner as the third step with a thermal dryer to print using a resin composition for printing the actual printing ink Printing method using resin composition for printing ink adhesion. In the printing method using the resin composition for the actual printing ink adhesion of metal sheet material, First process (preparation process) First, clean the surface of the metal plate to remove foreign substances on the surface of the plate. Second process (manufacturing process of resin composition for adhesive printing of metal sheet material) 25-76 parts by weight of one or more or two to four resins in acrylic, polyurethane, PVA and epoxy resins, any selected from alcohols, ethylacetate, toluene as diluent 20-50 parts by weight of one or more compounds, 3-20 parts by weight of silica as a print fit, 0.001-1 parts by weight of polyethylene glycol as a wetting agent, melamine-formaldehyde (MF) and isocyanate as a curing agent A mixture of 0.001 to 0.5 parts by weight of any one selected compound is prepared to form a uniform system by sufficient stirring for 5 hours, but the viscosity is 200 ~ 400 centipoase (cps) for the actual printing ink adhesion of the metal sheet After preparing and preparing the resin composition, Third process (resin composition coating and drying process for real-time printing ink adhesion of metal plate material) The resin composition for attaching the actual printing ink prepared in the second step as the adhesive resin layer having excellent adhesion with the metal plate, high adhesion with the ink, and printability was applied on the metal plate prepared at the first step with a thickness of 6 μm. Then paint (undercoat), heat dry (heat cure) at 150 ° C. for 90 seconds in a normal heat dryer, 4th process (metal plate printing process) The metal plate material dried in the third process is subjected to the actual printing (middle) using a conventional plotter, and the ink used for the printing is the aqueous printing using aqueous, oil based, UV-curable ink and solvent-based ink (middle). After the actual printing (middle), the secondary drying is carried out at 150 ° C. for 90 seconds in the same manner as in the third step with a thermal dryer, and then the ordinary ultraviolet (UV) blocking solution is placed on the dried real printing (middle). After forming a protective film (coating) with a coating thickness of 7 μm, the film is dried by third time at 150 ° C. for 90 seconds using a heat dryer, and then printed using a resin composition for attaching the actual printing ink to a metal plate. How to print.