KR20090044624A - Multilayer stacked transfer sheet and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a laminated transfer sheet and a method of manufacturing the same, and more specifically, a base film; A release agent layer formed on the base film; 20 to 80% by weight of the thermosetting resin, 5 to 50% by weight of the photocurable resin and 0.1 to 20% by weight of the average particle diameter of 10nm to 5㎛ formed on the release agent layer and based on the total weight of the entire UV resin laminate UV resin lamination including phosphorus microbeads; A first primer layer selectively formed on the UV resin laminate when the surface tension of the UV resin laminate is less than 38 dynes and having a surface tension of 38 dynes or more; A print layer formed on the UV resin laminate or the first primer layer; A second primer layer formed on the printed layer; Optionally a metal layer formed entirely or partially on the second primer layer and an antioxidant layer formed on the metal layer; The present invention relates to a laminated transfer sheet including an adhesive layer formed on the second primer layer or the metal layer and an anti-oxidation layer, and a method of manufacturing the same. The laminated transfer sheet of the present invention has a simpler structure and a lower cost than a conventional laminated transfer sheet. It can be manufactured, but can realize excellent anti-reflection effect, brightness enhancement, and wide viewing angle improvement effect.

Transfer film, diffuse reflection, refractive index, microbead, light efficiency

Description

Laminated transfer sheet and its manufacturing method {MULTILAYER STACKED TRANSFER SHEET AND MANUFACTURING METHOD THEREOF}

The present invention relates to a laminated transfer sheet and a method of manufacturing the same, and more specifically, a base film; A release agent layer formed on the base film; 20 to 80% by weight of the thermosetting resin, 5 to 50% by weight of the photocurable resin and 0.1 to 20% by weight of the average particle diameter of 10nm to 5㎛ formed on the release agent layer and based on the total weight of the entire UV resin laminate UV resin lamination including phosphorus microbeads; A first primer layer selectively formed on the UV resin laminate when the surface tension of the UV resin laminate is less than 38 dynes and having a surface tension of 38 dynes or more; A print layer formed on the UV resin laminate or the first primer layer; A second primer layer formed on the printed layer; Optionally a metal layer formed entirely or partially on the second primer layer and an antioxidant layer formed on the metal layer; A laminated transfer sheet comprising an adhesive layer formed on the second primer layer or the metal layer-antioxidation layer, and a method of manufacturing the same.

In mobile phones, PDAs, navigation devices, video cameras, digital cameras, automobile interiors, and the like, the display portion is combined with a liquid crystal panel or an organic EL panel. In this display part, a plastic cover panel made of a transparent resin molded for the purpose of preventing damage to the liquid crystal panel, expanding the display of the liquid crystal panel, or decorating the periphery of the liquid crystal panel is mainly used. The transparent film of the panel is coated with a transfer film having excellent hard coat resistance such as anti-glare to prevent the glare and easy to see the displayed screen, scratch resistance to prevent scratching, chemical resistance and weather resistance.

However, in order to implement the anti-glare, a method of forming an anti-reflection layer using Fresnel reflection and light interference is used. In such a case, it is very important to control the thickness of the antireflective layer. When the thickness is 1/4 wavelength, the reflected light is reduced by the disappearance of the reflected light from the surface of the film and the interface between the film and the substrate on which the film is formed. Will be exercised. For example, in the antireflection layer having a refractive index of 1.36, the thickness of the antireflection layer is most suitably about 0.1 μm when the central wavelength of the transmitted light is 550 nm. However, it is very difficult to form such a thin reflective layer uniformly on a transparent substrate, and there is a problem that it is difficult to obtain the antireflection effect that is expected. In particular, when the overall shape of the transparent base material has a three-dimensional shape, it is too difficult to form a thin thin film having a uniform thickness thereon, so that it is more difficult to obtain the antireflection effect expected. Moreover, the said antireflection layer has a problem that hard-coat property is bad.

On the other hand, there have been other attempts to solve the above problems. Korean Patent Publication No. 194-111142 is characterized in that an in-mold molded article having a matte surface by having irregularities formed on its surface, wherein a transfer layer having fine irregularities is formed on the surface of the irregularities formed on the surface of the plastic molding. An in-mold uneven product having a matte surface is disclosed. In addition, Korean Patent Laid-Open Publication No. 2003-51703 discloses that a decorative sheet having at least a hard coat layer formed thereon is formed on a cavity surface of a mold having a curved surface or a flat surface having a radius of curvature of 40 mm or more at a place corresponding to a transparent window. The sheet is in contact with the sheet, and the transparent molten resin is injected into the mold to obtain an integrated product in which the decorative sheet and the transparent substrate made of the molten resin are integrated, and then the gas sheet is peeled from the integrated product to provide the transparent material. After forming a convex curved surface or a flat surface toward the surface with an average surface roughness (Ra) of 2.0 ~ 150nm and a radius of curvature in the transparent window of 40mm or more in the window, and to form an anti-reflection layer on the surface of the transparent substrate The anti-reflective molded article manufacturing method and the gas sheet at least an anti-reflection layer is provided directly or via a release layer, the gas sheet The surface or an average surface roughness (Ra) of the surface of the release layer is disclosed material is 2.0 to anti-reflection, it characterized in that the transfer of 150nm.

However, the transfer material disclosed in this document requires a highly precise process for processing of the surface, which requires expensive processing equipment and increases the manufacturing cost.

Accordingly, the technical problem to be achieved by the present invention is to provide a laminated transfer sheet having a simpler structure and low cost, and excellent light efficiency such as excellent antireflection effect, brightness enhancement, and wide viewing angle.

In order to achieve the above technical problem, the present invention is a base film; A release agent layer formed on the base film; 20 to 80% by weight of the thermosetting resin, 5 to 50% by weight of the photocurable resin and 0.1 to 20% by weight of the average particle diameter of 10nm to 5㎛ formed on the release agent layer and based on the total weight of the entire UV resin laminate UV resin lamination including phosphorus microbeads; A first primer layer selectively formed on the UV resin laminate when the surface tension of the UV resin laminate is less than 38 dynes and having a surface tension of 38 dynes or more; A print layer formed on the UV resin laminate or the first primer layer; A second primer layer formed on the printed layer; Optionally a metal layer formed entirely or partially on the second primer layer and an antioxidant layer formed on the metal layer; It provides a laminated transfer sheet comprising an adhesive layer formed on the second primer layer or the metal layer-antioxidation layer.

In addition, the present invention provides a laminated transfer sheet characterized in that the UV resin layer further comprises a polyisocyanate in the range of 5 to 20% by weight or melamine in the range of 5 to 15% by weight.

In addition, the present invention provides a laminated transfer sheet, characterized in that the UV resin layer has a thickness in the range of 1 to 10㎛.

In another aspect, the present invention provides a laminated transfer sheet characterized in that the first primer layer is composed of at least one solvent selected from the group consisting of acrylic polymer or urethane resin and methyl ethyl ketone, methyl isobutyl ketone and toluene.

In addition, the present invention provides a laminated transfer sheet, characterized in that the second primer layer is composed of a polyacrylate in the range of 10 to 40% by weight, polyisocyanate in the range of 5 to 10% by weight and the remaining solvent.

In addition, in order to achieve another technical problem of the present invention, the present invention is a method for producing a laminated transfer sheet consisting of a multi-layer structure, i) a release agent on a base film made of a transparent resin having a thickness in the range of 10 to 100㎛ Forming a layer; Ii) thermosetting resin in the range of 10 to 60% by weight, 10 to 60% by weight of the photocurable resin in the range of 10 to 60%, microbeads having an average particle diameter of 10 nm to 5 μm in the range of 0.1 to 20% by weight, 5 to 15% by weight Mixing a resin containing a polyisocyanate in a range or melamine in a range of 5 to 10% by weight and the remaining solvent, and applying it on the release agent layer, followed by drying and irradiating UV to form a UV resin laminate; Iii) forming a first primer layer having a surface tension of 38 dynes or more on the UV resin laminate when the surface tension of the UV resin laminate is less than 38 dynes; Iii) forming a printing layer on the UV resin laminate or the first primer layer; Iii) forming a second primer layer composed of polyacrylate in the range of 10 to 40% by weight, polyisocyanate in the range of 5 to 10% by weight and the remaining solvent on the printed layer; Iii) optionally, partially forming a third primer layer composed of acrylic resin, isopropyl alcohol and H ₂ O on the second primer layer; Iii) optionally, forming a metal layer on the second primer layer or the third primer layer; Iii) forming an antioxidant layer on the remaining metal layer after removing the third primer layer and the metal layer formed on the third primer layer; Iii) providing a method of manufacturing a laminated transfer sheet comprising forming an adhesive layer on the second primer layer or the metal layer-antioxidation layer.

The present invention provides an excellent anti-reflective effect and excellent light efficiency such as brightness and light viewing angle by effectively preventing the reflection of the UV resin laminate in a very simple and low cost method, and a method of manufacturing the same.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the structure of one embodiment of a laminated transfer sheet according to the present invention. As can be seen in Figure 1, the laminated transfer sheet of the present invention is a base film; A release agent layer formed on the base film; 20 to 80% by weight of the thermosetting resin, 5 to 50% by weight of the photocurable resin and 0.1 to 20% by weight of the average particle diameter of 10nm to 5㎛ formed on the release agent layer and based on the total weight of the entire UV resin laminate UV resin lamination including phosphorus microbeads; A first primer layer selectively formed on the UV resin laminate when the surface tension of the UV resin laminate is less than 38 dynes and having a surface tension of 38 dynes or more; A print layer formed on the UV resin laminate or the first primer layer; A second primer layer formed on the printed layer; Optionally a metal layer formed entirely or partially on the second primer layer and an antioxidant layer formed on the metal layer; And an adhesive layer formed on the second primer layer or the metal layer-antioxidation layer.

The base film applied to the laminated transfer sheet of the present invention is not particularly limited as long as it has a light transmittance capable of transmitting UV above an appropriate level without reacting with UV irradiated for photocuring the UV resin laminate. Preferred examples of the base film is 1 selected from the group consisting of polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE) and polycarbonate (PC), polyimide (PI), polyamide and polystyrene (PS) It is preferable that it is a species or more, and it is preferable that haze (Haze) is 5% or less of transparency of a base film. If the haze exceeds 5% may adversely affect the UV curing. The base film preferably has a thickness in the range of 20 to 100 μm. This is because when the thickness of the base film is less than 20 µm, resin lamination is difficult, whereas when the thickness exceeds 100 µm, the coating is difficult.

Since the base film is removed after attaching the transfer sheet to the substrate, a release agent layer is formed on the base film. The release agent layer is not particularly limited as long as it has a light transmittance that can transmit UV above an appropriate level without reacting with UV irradiated for photocuring of the UV resin laminate like the base film. In one embodiment of the laminated transfer sheet according to the present invention, a release agent layer was formed by mixing an acrylic resin and a solvent. The thickness of the release agent layer is preferably in the range of 0.2 to 3㎛. If the thickness of the release agent layer is less than 0.2㎛ release property is falling, whereas if it exceeds 3㎛ hardening is not sufficient enough to have a difficult stacking.

The laminated transfer sheet of the present invention is formed on the release agent layer and based on the total weight of the entire UV resin laminate, the thermosetting resin in the range of 20 to 80% by weight, the photocurable resin in the range of 5 to 50% by weight and the range of 0.1 to 20% by weight. UV resin laminates containing microbeads having an average particle diameter of 10 nm to 5 μm. The thermosetting resin or the photocurable resin is not particularly limited, and any known thermosetting resin or photocurable resin can be used. Preferred examples of the thermosetting resin are one or more selected from the group consisting of an epoxy resin, an epoxy polyester resin, a polyester resin, an acrylic resin, and an acrylic polyester resin. In addition, the photocurable resin is preferably one or more selected from the group consisting of urethane acrylate (Urethane-Acrylate), epoxy acrylate (Epoxy-Acrylate), spirane acrylate (Spirane-Acrylate). When the content of the thermosetting resin is less than 20% by weight based on the total weight of the UV laminated resin, the hardness is lowered and thus does not act as a hard coating layer. On the other hand, if it exceeds 80% by weight, the hardness is too high, there is a problem of cracking on the curved surface when transferring to the molded article, and there is a problem that the coating property is not good because of excessive hardness when laminated. On the other hand, when the content of the photocurable resin is less than 5% by weight based on the total weight of the UV laminated resin, the hardness is high, so that cracks may occur on the curved portion when transferring to the molded product, whereas when the content exceeds 50% by weight, the lamination is performed. There is a problem that the uncured coating property is poor and the solvent resistance is poor. In addition, the UV laminated resin layer preferably has a refractive index in the range of 1.35 to 1.45. The refractive index can increase the light efficiency and diffuse reflection according to Snell's law. When the thermosetting resin having a refractive index of about 1.3 and the photocurable resin having a refractive index of about 1.5 is used, the refractive index becomes higher and the thermosetting resin becomes higher. The more it enters, the lower the refractive index. The UV resin laminate includes microbeads having an average particle diameter of 10 nm to 5 μm in a range of 0.1 to 20 wt%. The microbeads serve to reduce the reflection on the surface by changing the refractive index of the UV resin laminate and inducing a kind of internal diffuse reflection. In addition, the addition of the microbeads has an effect of improving light efficiency due to the light diffusion effect and the light condensing effect, thereby improving the high brightness and the wide viewing angle effect. The microbead is preferably in the range of 0.1 to 20% by weight based on the total weight of the total UV resin laminate, the average particle diameter is preferably in the range of 10nm to 5㎛. When the amount of the microbeads is less than 0.1% by weight based on the total weight of the entire UV resin stack, the amount is too small to improve the light efficiency. On the other hand, when the amount of the microbeads exceeds 20% by weight, the wide viewing angle effect is good. Turbidity is too high, there is a problem that does not act as a display window. In addition, when the size of the microbead is less than 10nm, the effect on the prevention of reflectance and brightness is insignificant, whereas when the size of the microbead is larger than 5㎛, the reflectance and brightness are increased but the viewing angle is narrowed. Preferred examples of the microbeads are preferably at least one selected from the group consisting of silicon, PMMA, SiO ₂ , ZnO ₂ and TiO ₂ . The UV resin laminate may further comprise polyisocyanate in the range of 5 to 20% by weight or melamine in the range of 5 to 15% by weight. In addition, it will be apparent to those skilled in the art that the photoinitiator may be added to the UV resin stack without special mention. The thickness of the UV resin laminate is preferably in the range of 1 to 10㎛.

The laminated transfer sheet of the present invention optionally includes a first primer layer having a surface tension of at least 38 dynes when the surface tension of the UV resin laminate is less than 38 dynes. The first primer layer is laminated to prevent printability and layer separation when the difference in surface tension between the print layer and the UV resin laminate is large, and the surface tension of the UV resin laminate is 38 dynes. It is not formed in the above case and is formed only when the surface tension of the UV resin laminate is less than 38 dynes. The first primer layer is not particularly limited, and preferably has a thickness of 2 μm or less. The first primer layer may be used by mixing a synthetic resin such as an acrylic polymer, a urethane-based resin, and at least one solvent selected from the group consisting of methyl ethyl ketone, methyl isobutyl ketone, ethyl acetate, and toluene.

A print layer is formed on the UV resin laminate or the first primer layer. The printing layer may be formed by a method such as a gravure printing method which is a known method, and is not particularly limited. Components constituting the printed layer is composed of a pigment, a solvent, a resin, and the like, and those skilled in the art to which the present invention pertains, so all of those skilled in the art will not be described in further detail herein.

The laminated transfer sheet of the present invention includes a second primer layer formed on the printed layer. The second primer layer is formed to improve adhesion to the metal layer during metal deposition, and is usually used by mixing a resin and a solvent. There is no restriction | limiting in particular in the said resin and solvent, What is necessary is just to be excellent in the bonding force at the time of metal deposition. Preferred examples of the resin used in the second primer layer are at least one selected from the group consisting of acrylic polymer, polyisocyanate, melamine, and preferred examples of the solvent are selected from the group consisting of methyl ethyl ketone, methyl isobutyl ketone and toluene. It is preferable that it is 1 or more types. Preferably, the second primer layer has a thickness in the range of 0.3 to 1 μm. Preferably, the second primer layer is preferably composed of polyacrylate in the range of 10 to 40% by weight, polyisocyanate in the range of 5 to 10% by weight and the remaining solvent.

The laminated transfer sheet of the present invention includes a metal layer formed in whole or in part on the second primer layer. The metal layer means a 20 to 100 nm thick metal layer formed to give a metal effect. The metal layer may be formed by using a metal foil or by vacuum deposition or sputtering. The thickness of the metal layer is preferably in the range of 20 to 100nm. If the thickness of the metal layer is less than 20nm, the metal effect is weak and easy to oxidize, such as the concealment force falls, whereas if the thickness of the metal layer exceeds 100nm, cracks are easily generated in the curved portion, and the bonding strength with the second primer layer or the adhesive layer is weak. This can happen. In the case of forming the metal layer, it is preferable to further form an antioxidant layer on the metal layer. The antioxidant layer is not particularly limited, and a film made of a known antioxidant layer, a vinyl resin and a solvent (eg, methyl ethyl ketone, toluene, etc.) may be formed to 1 μm or less to prevent oxidation of the metal layer. In order to form the metal layer partially, in order to facilitate the removal after the metal layer is formed, a third primer layer is partially formed or masked on the second primer layer to deposit metal. The third primer layer is for partial metal deposition. The third primer layer is formed at the position of the display unit to which the laminated transfer sheet of the present invention is attached, and is removed together with the metal layer formed thereon after the metal deposition. It forms a transparent window. In a preferred embodiment of the present invention, it is removed by washing with water using an acrylic resin, an isopropyl alcohol and water.

The laminated transfer sheet of the present invention includes an adhesive layer formed on the second primer layer or the metal layer-antioxidation layer. The adhesive serves to bond the laminated transfer sheet with a substrate such as an injection molded article to which the laminated transfer sheet of the present invention is attached. The material of the adhesive layer is not particularly limited, and generally, a hot melt adhesive such as a known adhesive may be used. When applied to a general injection molded article, the dry film thickness of the adhesive layer is preferably in the range of 1 to 10㎛. If the thickness of the adhesive layer is less than 1㎛ adhesion may be inferior, pinhole phenomenon may occur, blocking may occur due to poor haze state, while when the adhesive layer exceeds 10㎛ when the adhesive layer during extrusion Because it can flow down. The type, thickness, and material of the adhesive layer may be determined by those skilled in the art to which the present invention pertains, depending on the characteristics of the adhesive surface or the adhesive environment, to find the optimum conditions.

Laminated transfer sheet of the present invention is iii) forming a release agent layer on a base film made of a transparent resin having a thickness in the range of 10 to 100㎛; Ii) thermosetting resin in the range of 10 to 60% by weight, 10 to 60% by weight of the photocurable resin in the range of 10 to 60%, microbeads having an average particle diameter of 10 nm to 5 μm in the range of 0.1 to 20% by weight, 5 to 15% by weight Mixing a resin containing a polyisocyanate in a range or melamine in a range of 5 to 10% by weight and the remaining solvent, and applying it on the release agent layer, followed by drying and irradiating UV to form a UV resin laminate; Iii) forming a first primer layer having a surface tension of 38 dynes or more on the UV resin laminate when the surface tension of the UV resin laminate is less than 38 dynes; Iii) forming a printing layer on the UV resin laminate or the first primer layer; Iii) forming a second primer layer composed of polyacrylate in the range of 10 to 40% by weight, polyisocyanate in the range of 5 to 10% by weight and the remaining solvent on the printed layer; Iii) optionally, partially forming a third primer layer composed of acrylic resin, isopropyl alcohol and H ₂ O on the second primer layer; Iii) optionally, forming a metal layer on the second primer layer or the third primer layer; Iii) optionally, forming an antioxidant layer on the remaining metal layer after removing the third primer layer and the metal layer formed on the third primer layer; Iii) a method of forming an adhesive layer on the second primer layer or the metal layer-antioxidation layer. Since the description of the UV resin laminate, primer layer or metal layer has already been made, no further detailed description will be given. Steps iii) to iii) indicate that the metal layer may be selectively formed on the second primer layer, and that the metal layer may be selectively formed in whole or in part on the second primer layer. As described above, the third primer layer is for partial metal deposition. The third primer layer is formed at the position of the display unit to which the laminated transfer sheet of the present invention is attached and is removed together with the metal layer formed thereon after the metal deposition. It is formed to form a transparent window in the portion where it was formed. In addition, each step may be subjected to a drying or aging process to remove the solvent as necessary.

Hereinafter, the present invention will be described in more detail with reference to embodiments which are specific embodiments of the present invention.

Preparation Example 1 (Optical characteristic test of UV resin lamination according to the amount of microbead addition)

The thickness of 38㎛ polyethylene terephthalate film as a base film, and the amount of mixing of urethane acrylate and acrylic mixed resin on the basis of the total weight of the UV laminated resin is adjusted, and microbeads having an average particle diameter of 5㎛ are mixed to have a thickness of 5㎛ A laminated film was manufactured by forming a hard coat layer. Since it is to measure the characteristics of the transparent window portion, the other lamination was excluded, and the laminated film was transferred to a size 40mm * 60mm * 1mm flat acrylic molded article by heat of 130 ~ 150 ℃. The bead size to be injected is limited to 0.5 μm, and reflectance and light efficiency according to the amount of microbead input are measured, and the results are summarized in Table 1. The measurement was performed in the state of the backlight unit.

Bead input amount (% by weight) reflectivity(%) Luminance (cd / m2) Horizontal viewing angle (°) Vertical viewing angle (°) One No input 4 3001 50.01 30.12 2 0.5 3.2 3011 50.34 30.29 3 1.0 2.1 3024 50.88 30.49 4 1.5 1.1 3031 51.02 30.99 5 2.0 0.8 3047 51.97 31.24 6 3.0 0.8 3064 52.11 31.84 7 5.0 0.6 3081 53.42 32.66 8 10.0 0.5 3096 54.85 33.78 9 15.0 0.5 3103 55.92 34.82

As can be seen in Table 1, it can be seen that as the dosage of the microbeads increases, the reflectance decreases and the luminance and viewing angle increase. However, although not shown in the above table, when the turbidity was increased from Test Example 8 and the amount thereof exceeded 20% by weight, it was not suitable as a display window.

Preparation Example 2 (Optical Property Test of UV Resin Lamination by Microbe Bead Size)

A 38-um-thick polyethylene terephthalate film was used as the base film, and microbeads were added to the urethane acrylate and acrylic mixed resin thereon to form a hard coat layer having a thickness of 5 μm, thereby preparing a laminated film. The other layer was excluded because the transparent window was measured. The laminated film was transferred to a size 40mm * 60mm * 1mm flat acrylic molded article by heat of 130 ~ 150 ° C. Bead input was limited to 3% based on the total weight of the UV laminated resin, and the reflectance and light efficiency according to the microbead size were measured. The measurement was performed in the state of the backlight unit.

 Bead Size (㎛) reflectivity(%) Luminance (cd / m2) Horizontal viewing angle (°) Vertical viewing angle (°) 10 No input 4.1 3004 50.02 30.09 11 0.5 0.6 3064 52.11 31.84 12 0.8 0.6 3066 52.23 31.91 13 One 0.8 3072 52.08 31.82 14 2 0.8 3083 51.87 31.73 15 3 0.9 3089 51.55 31.30 16 4 1.1 3096 51.32 31.19 17 5 1.1 3123 51.18 31.04 18 6 2.3 3116 50.88 30.81

As can be seen from Table 2, the antireflection effect and light efficiency are greater than that of the microbead is not added, and in Test Examples 11 to 13, the antireflection effect and the light efficiency are much better than before the microbead is added. . However, as the size of the microbeads increases, the reflectance and luminance increase, and the viewing angle decreases as the luminance increases.

Example 1 (Preparation of laminated transfer sheet with selective metal effect function)

As a base film, 25% by weight of acrylic resin, 5% by weight of additives, 35% by weight of methyl ethyl ketone, and 35% by weight of toluene were mixed on a polyethylene terephthalate film having a thickness of 38 µm treated with corona discharge and stirred for 10 minutes with a stirrer. One release layer was dried at 60-120 ° C. for 10 seconds using a Graiva coating method to form a thickness of 1 μm. Next, after mixing the acrylic resin and the acrylic urethane resin in a 7: 3 ratio (weight ratio), 40% by weight, 10% by weight of isocyanate, 4% by weight of melamine-based additives, PMMA beads of 5㎛ size and 1㎛ size 6 wt% of the silicon beads were mixed together at a mixing ratio of 3: 7 (weight ratio) at a ratio of 20 wt% of solvent toluene and 20 wt% of methyl ethyl ketone, followed by stirring for 15 minutes using a stirrer. Thereafter, a gravure coating method was used to obtain a laminated sheet having a coating thickness of 5 μm after 15 seconds drying at 100 to 150 ° C. on the release agent layer. The laminated sheet is aged at 60 ° C for 48hr in a rolled state. Then, 30% by weight of the acrylic urethane resin, 20% by weight of methyl ethyl ketone, 20% by weight of toluene, and 20% by weight of ethyl acetate were added thereto, stirred for 10 minutes using a stirrer, and then 100 ° C using gravure printing. After 15 seconds of drying, a first primer layer having a thickness of 1 μm or less is formed. Then, for color printing, a # 200 copper plate was mixed by mixing 24 wt% of an ink component synthetic resin, 4 wt% of a synthetic wax, 26 wt% of a pigment, 20 wt% of toluene, 20 wt% of methyl ethyl ketone, and 6 wt% of methyl acetate. After printing, the logo is printed using a 175-sheet copper mesh, and then gravure printing is applied. At the same time, the second primer layer, acrypolymer, 60% and isocyanate and melamine-based resin 10% , 15% of methyl ethyl ketone and 15% of toluene were stirred for 10 minutes using a stirrer and then coated to a thickness of 1 μm or less using a # 200 copper plate by gravure printing. And in order to have a partial deposition effect, after stirring for 5 minutes by using 30% acrylic resin, 30% isopropyl alcohol, 30% H ₂ 0 30%, and 10% additives, the gravure printing method was applied to the parts except vedic printing and logo printing. Using the # 300 copper plate to form a third primer layer, and then aged at 60 ℃ 24hr. Then, in order to generate a metal effect, Al and Ni metals were deposited to a thickness of 500 kPa by vacuum deposition. After evaporation, washing was performed for transparency of the parts except for the printed part. As a result, a transfer sheet having a different printing portion and display portion having a metallic effect could be obtained. In this way, the laminate sheet was subjected to an antioxidant coating using a gravure printing method with a thickness of 1 μm or less with a resin of a vinyl resin series, which is a general antioxidant coating. Then, 65% polyester and 5% isocyanate, 15% methyl ethyl ketone and 15% toluene were added to the hot melt resin, stirred for 10 minutes using a stirrer, and then coated to a thickness of 2 μm by gravure printing. Dried in between. As a result, it was possible to obtain a laminated transfer sheet having an antireflection effect and an optical efficiency improving function having a selective metal effect.

One embodiment of the present invention described above should not be construed as limiting the technical spirit of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

1 is a cross-sectional view showing the structure of one embodiment of a laminated transfer sheet according to the present invention

<Explanation of symbols for the main parts of the drawings>

10 Base Film 20 Release Agent Layer

30 UV resin laminated 40 First primer layer

50 Printed layer 60 Second primer layer

70 metal layer 80 antioxidant layer

90 Adhesive Layer 100 Laminated Transfer Film

Claims (6)

A base film; A release agent layer formed on the base film; 20 to 80% by weight of the thermosetting resin, 5 to 50% by weight of the photocurable resin and 0.1 to 20% by weight of the average particle diameter of 10nm to 5㎛ formed on the release agent layer and based on the total weight of the entire UV resin laminate UV resin lamination including phosphorus microbeads; A first primer layer selectively formed on the UV resin laminate when the surface tension of the UV resin laminate is less than 38 dynes and having a surface tension of 38 dynes or more; A print layer formed on the UV resin laminate or the first primer layer; A second primer layer formed on the printed layer; Optionally a metal layer formed entirely or partially on the second primer layer and an antioxidant layer formed on the metal layer; Laminated transfer sheet comprising an adhesive layer formed on the second primer layer or the metal layer-antioxidation layer. The method of claim 1, The UV resin laminate is a laminated transfer sheet further comprising a polyisocyanate in the range of 5 to 20% by weight or melamine in the range of 5 to 15% by weight. The method according to claim 1 or 2, The UV resin laminated layer transfer sheet, characterized in that having a thickness in the range of 1 to 10㎛. The method of claim 1, The first primer layer is a laminated transfer sheet, characterized in that composed of at least one solvent selected from the group consisting of acrylic polymer or urethane resin and methyl ethyl ketone, methyl isobutyl ketone and toluene. The method of claim 1, The second primer layer is a laminated transfer sheet, characterized in that consisting of 10 to 40% by weight of polyacrylate, 5 to 10% by weight of polyisocyanate and the remaining solvent. In the method of manufacturing a laminated transfer sheet consisting of a multilayer structure, Iii) forming a release agent layer on a base film made of a transparent resin having a thickness in the range of 10 to 100 μm; Ii) Thermosetting resin in the range of 10 to 60% by weight, 10 to 60% by weight of the photocurable resin in the range of 10 to 60%, microbeads having an average particle diameter of 10 nm to 5 μm in the range of 0.1 to 20% by weight, 5 to 15% by weight Mixing a resin containing a polyisocyanate in a% range or melamine in a range of 5 to 10% by weight and the remaining solvent and applying the same on the release agent layer, followed by drying and irradiating UV to form a UV resin laminate; Iii) forming a first primer layer having a surface tension of 38 dynes or more on the UV resin laminate when the surface tension of the UV resin laminate is less than 38 dynes; Iii) forming a printing layer on the UV resin laminate or the first primer layer; Iii) forming a second primer layer composed of polyacrylate in the range of 10 to 40% by weight, polyisocyanate in the range of 5 to 10% by weight and the remaining solvent on the printed layer; Iii) optionally, partially forming a third primer layer composed of acrylic resin, isopropyl alcohol and H ₂ O on the second primer layer; Iii) optionally, forming a metal layer on the second primer layer or the third primer layer; Iii) optionally, forming an antioxidant layer on the remaining metal layer after removing the third primer layer and the metal layer formed on the third primer layer; Iii) forming an adhesive layer on the second primer layer or the metal layer-antioxidation layer.

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