JP2011167844A - Transfer sheet containing interference fringe inhibitor and decorative molded article of the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transfer sheet for suppressing generation of a rainbow interference fringe in a decorative molded article formed by using the transfer sheet having a design layer comprising a light transmissive metallized layer or a luster layer and enhancing decorative performance of the decorative molded article. <P>SOLUTION: The transfer sheet 100 is obtained by sequentially forming at least a peeling layer 2, an anchor layer 3, the design layer 4 and a bonding layer 5 on a base body sheet 1. At least either one of the anchor layer 3 or the design layer 4 includes an interference fringe inhibitor 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates generally to a transfer sheet used for decoration of a molded product, and more particularly to a transfer sheet for preventing a rainbow-like interference fringe from being generated on a surface of a decorative molded product created using the transfer sheet. Is.

  In communication devices such as mobile phones, automobiles, and home appliances, there is a method in which a transfer sheet is used to decorate the surface of a plastic molded product in order to express a pattern or metallic luster.

  There is a transfer method as a method for decorating the surface of a plastic molded article in this way. The transfer method is a method of performing decoration by using a transfer sheet in which a pattern layer, an adhesive layer, or the like is formed on a base sheet, and applying heat and pressure so that the transfer layer is in close contact with a transfer object. In addition, when the material to be transferred is a resin molded product, there is a simultaneous molding transfer method as a method for performing the transfer method more rationally. The simultaneous molding transfer method is a method in which a transfer sheet is sandwiched in a molding die, a resin is injected and filled in the die, and a resin molded product is obtained by cooling, and at the same time, the transfer sheet is adhered to the surface of the molded product, In this method, the substrate sheet is peeled off, and a design layer, an adhesive layer, or the like is transferred to the surface of the transfer object for decoration. When creating a decorative molded product by the above method, in order to protect the pattern layer formed on the outermost surface, it is possible to use a transfer sheet in which a release layer having a hardness higher than that of the pattern layer is formed on the pattern layer. is there.

  Furthermore, in the said transfer sheet, in order to improve the adhesiveness of a peeling layer and a design layer, the transfer sheet which formed the anchor layer between the peeling layer and the design layer may be used (for example, patent document) 1).

Japanese Patent Laid-Open No. 06-135197

  However, among the transfer sheets described in Patent Document 1, the decorative molded product created using a transfer sheet composed of a light-transmitting metal vapor-deposited layer or a glossy layer (hereinafter referred to as a gloss layer), When the light A having a wavelength of 380 nm to 780 nm (hereinafter referred to as visible light) is irradiated, the decorative molded product 200 has the peeling layer 203 formed on the pattern layer 201 via the anchor layer 202. The light X reflected from the surface of the layer 203 interferes with the light Y reflected from the interface between the design layer 201 and the anchor layer 202, and rainbow-like interference fringes are generated on the surface of the peeling layer 203. The tendency for the stripes to be generated is particularly remarkable in a fluorescent lamp having a maximum peak in the visible light region. When such light is irradiated onto the decorative molded product 200, the quality such as the decorativeness or the metallic gloss is remarkably deteriorated. (See FIG. 8).

  Therefore, the present invention solves the above-mentioned problems, and the decorative molded product formed using a transfer sheet in which the pattern layer is formed of a light-transmitting metal vapor-deposited layer or glossy layer has rainbow-like interference fringes. An object of the present invention is to provide a transfer sheet for suppressing generation and having high decorativeness.

  In order to achieve the above object, the transfer sheet of the present invention is configured as follows.

  That is, the transfer sheet of the present invention is a transfer sheet in which a release layer, an anchor layer, a design layer, and an adhesive layer are sequentially formed on a base sheet, and at least one of the anchor layer or the design layer is an interference fringe preventing agent. It was comprised so that it might contain.

  As a second aspect of the present invention, the transfer sheet of the present invention has two or more anchor layers formed between the release layer and the design layer, and at least one of these anchor layers contains an interference fringe preventing agent. It was configured as follows.

  As a third aspect of the present invention, the transfer sheet of the present invention is configured such that the anchor layer and the design layer are in direct contact with each other, and at least one of the anchor layer and the design layer contains an interference fringe preventing agent.

  As a fourth aspect of the present invention, the transfer sheet of the present invention is configured such that the pattern layer is composed of a semi-permeable metal vapor deposition layer and / or a gloss layer of 5 nm to 50 nm.

  As a fifth aspect of the present invention, the transfer sheet of the present invention is configured such that the interference fringe inhibitor is made of an inorganic material such as silica or alumina, or an organic material such as acrylic resin or urethane.

  As a sixth aspect of the present invention, the transfer sheet of the present invention is configured such that the average particle size of the interference fringe inhibitor is 0.5 μm to 10 μm.

  Further, as a seventh aspect of the present invention, the transfer sheet of the present invention is configured such that the root mean square roughness of the uneven shape at the interface between the anchor layer and the pattern layer is 0.1 μm to 5 μm.

  As an eighth aspect of the present invention, the decorative molded product of the present invention is a decorative molded product in which an adhesive layer, a design layer, an anchor layer, and a release layer are sequentially formed on a resin molded product. Alternatively, at least one of the design layers is configured to contain an interference fringe preventing agent.

  Moreover, as a ninth aspect of the present invention, the decorative molded product of the present invention is configured such that the anchor layer and the design layer are in direct contact with each other and the interface thereof is an uneven shape.

  The transfer sheet of the present invention is a transfer sheet in which a release layer, an anchor layer, a design layer, and an adhesive layer are sequentially formed on a base sheet, and at least one of the anchor layer and the design layer contains an interference fringe preventing agent. Since it comprised so that the decoration molded product obtained using the said transfer sheet can suppress generation | occurrence | production of a rainbow-like interference fringe, it becomes a thing with high decorating property.

  Embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a cross-sectional view of a transfer sheet 100 of the present invention. In the figure, 1 is a base sheet, 2 is a release layer, 3 is an anchor layer, 4 is a design layer, 5 is an adhesive layer, 6 is an interference fringe prevention agent 40 is a metal deposition layer, 41 is a gloss layer, and 42 is a design layer. is there. In addition, the same code | symbol is attached | subjected about the same component in each figure.

  The transfer sheet 100 of the present invention is a transfer sheet in which a release layer 2, an anchor layer 3, a design layer 4, and an adhesive layer 5 are sequentially formed on a base sheet 1, and at least one of the anchor layer 3 or the design layer 4. One side is comprised so that the interference fringe prevention agent 6 may be contained (refer FIG. 1, FIG. 2).

  The material of the base sheet 1 includes polypropylene resin, polyethylene resin, polyamide resin, polyester resin, acrylic resin, polyvinyl chloride resin resin sheet, aluminum foil, copper foil and other metal foil, glassine paper Further, a substrate sheet 1 of a normal transfer sheet 100 such as a cellulose-based sheet such as coated paper or cellophane, or a composite of the above respective sheets can be used. Moreover, when the surface of the base sheet 1 has fine unevenness, the unevenness is copied to the release layer 2 or the design layer 4 transfer layer, and surface shapes such as matte and hairline can be expressed.

  In order to improve the peelability of the base sheet 1, a release layer may be provided between the base sheet 1 and the release layer 2 (not shown).

  The release layer is a layer that is released from the transfer layer together with the base sheet 1 when the base sheet 1 is peeled off after transfer or after simultaneous molding transfer. As the material of the release layer, melamine resin, silicone resin, fluorine resin, cellulose derivative, urea resin, polyolefin resin, paraffin resin, and composites thereof can be used. It is preferable that at least melamine resin is contained therein. This is because the melamine resin is a thermosetting resin with high heat resistance, and has an appropriate release property from the metal vapor deposition layer, and does not cause any physical or mechanical change. This is because it is possible to suppress whitening and discoloration of the metal vapor deposition layer. Examples of the method for forming the release layer include coating methods such as a roll coating method and a spray coating method, and printing methods such as a gravure printing method and a screen printing method.

  The release layer 2 is a layer that becomes the outermost surface of the transfer object after transfer, and is a layer that protects the design layer 4. The release layer 2 can be made of acrylic resin, polyester resin, polyvinyl chloride resin, cellulose resin, rubber resin, polyurethane resin, polyvinyl acetate resin, or vinyl chloride-vinyl acetate copolymer. Copolymers such as system resins and ethylene-vinyl acetate copolymer resins may be used. When the release layer 2 requires hardness, a photo-curing resin such as an ultraviolet curable resin, a radiation curable resin such as an electron beam curable resin, or a thermosetting resin may be selected and used. Examples of the method for forming the release layer 2 include a coating method such as a gravure coating method, a roll coating method, a comma coating method, and a lip coating method, and a printing method such as a gravure printing method and a screen printing method.

  The anchor layer 3 is a layer that improves the adhesion between the release layer 2 and the design layer 4. Further, two or more anchor layers 3 may be provided between the release layer 2 and the design layer 4 as necessary. As the material of the anchor layer 3, two-component cured urethane resin, thermosetting urethane resin, melamine resin, cellulose ester resin, chlorine-containing rubber resin, chlorine-containing vinyl resin, acrylic resin, epoxy resin, vinyl A copolymer resin can be used. As the formation method of the anchor layer 3, the interference fringe preventing agent 6 described below is mixed into the anchor layer 3, and then peeled off by a printing method typified by a coating method such as a gravure coating method, a roll coating method, or a comma coating method. It can be performed by forming on the layer 2.

  The design layer 4 is a layer for decorating the resin molded product 9, and is a metal vapor-deposited layer 40 that gives the resin molded product 9 a metallic luster, a gloss layer 41 that gives the resin molded product 9 a gloss, or the surface of the resin molded product 9 Is formed on the anchor layer 3 and includes at least one of the pattern layers 42 for providing various decorations.

  When the metal vapor deposition layer 40 is formed as the pattern layer 4, the vapor deposition method, the sputtering method, the ion plating method, the plating method or the like may be used as the formation method. Metals such as aluminum, nickel, gold, platinum, chromium, iron, copper, tin, indium, silver, titanium, lead, and zinc, and alloys or compounds thereof are used depending on the metallic luster color to be expressed. The metal vapor deposition layer 40 may be provided on the entire surface or partially according to the decoration to be expressed.

  As a formation method in the case of forming the metal vapor deposition layer 40 in a part, a celite method and a paster method can be mentioned.

  In the celite method, a water-soluble resin layer is partially formed before the metal vapor-deposited layer 40 is formed, and after depositing a metal, the water-soluble resin layer and an unnecessary metal vapor-deposited layer formed thereon are washed with water. This is a method of removing and partially forming the metal vapor deposition layer 40. Here, examples of the material for the water-soluble resin layer include inks containing a water-soluble resin typified by polyvinyl alcohol, starch, algide, epoxy, polyurethane and the like as a binder. Examples of the forming method include a gravure printing method, a flexographic printing method, and a screen printing method.

  The paster method is a method in which after forming the metal vapor-deposited layer 40, an alkali-resistant resin layer is partially formed on the metal vapor-deposited layer 40, and the metal vapor-deposited layer 40 is partially formed by subsequent alkali cleaning. Here, the material of the alkali-resistant resin layer includes vinyl chloride-vinyl acetate copolymer. Examples of the method for forming the alkali-resistant resin layer include coating methods such as gravure coating, roll coating, and comma coating, printing methods such as gravure printing, and screen printing.

When the gloss layer 41 is formed as the pattern layer 4, the material of the gloss layer 41 is polyvinyl resin, polyamide resin, polyacrylic resin, polyurethane resin, polyvinyl acetal resin, polyester urethane resin, cellulose ester resin. A colored ink containing a resin or a resin such as an alkyd resin as a binder and a pigment or dye of an appropriate color as a colorant may be used.
In the case of forming a metal color, a pearl pigment in which titanium oxide is coated on metal particles such as aluminum, titanium, bronze, or mica can be used. Further, the gloss layer 41 may be transmissive or light-shielding. As a method for forming the gloss layer 41, as in the case of the pattern layer 42, a normal printing method such as an offset printing method, a gravure printing method, or a screen printing method may be used.

  The gloss layer 41, when configured as the pattern layer 4, is a layer in which interference fringes tend to occur particularly on the surface of the release layer 2 when the decorative molded product 110 obtained by the method described later is irradiated with visible light. . That is, when the decorative molded product 110 is irradiated with visible light of 380 to 780 nm, the average of the periodic change in the reflectance of the molded product at the location including the pattern layer 4 is 0.5% or more, This is a layer having an absolute value of reflectance of 10% or less. When the optical distance from the surface of the decorative molded article 110 to the surface of the gloss layer 41 is an integral multiple of the wavelength, the reflected light is strengthened, and when there is a difference between the integral multiple of the wavelength and the half wavelength, the reflected light is Weaken each other. As a result, when the average of the magnitude of the periodic change of the reflectance with respect to the wavelength of the reflected light is 0.5% or more, the interference fringes are easily seen. When the absolute value of the reflectance is 10% or less, the interference fringes are particularly noticeable.

  When the pattern layer 42 is formed as the pattern layer 4, the same material as the gloss layer 41 may be used. As a method for forming the pattern layer 42, a normal printing method such as an offset printing method, a gravure printing method, or a screen printing method may be used. In particular, the offset printing method and the gravure printing method are suitable for performing multicolor printing and gradation expression. In the case of a single color, a coating method such as a gravure coating method, a roll coating method, or a comma coating method may be employed.

  Here, it is preferable that at least one of the anchor layer 3 or the design layer 4 contains the interference fringe preventing agent 6. It irradiates the decorative molded product 110 made of the transfer sheet 100, which includes the release layer 2, the anchor layer 3, the design layer 4, the adhesive layer 5, the interference fringe preventing agent 6, and the resin molded product 9, with visible light. When either of the anchor layer 3 or the design layer 4 contains the interference fringe preventing agent 6, the light P (hereinafter referred to as the light P) incident on the interface between the anchor layer 3 and the design layer 4 of the decorative molded product 110 is obtained. Incident light P) is scattered, and the amount of light 7 (hereinafter referred to as reflected light 7) reflected at the interface between the anchor layer 3 and the design layer 4 becomes extremely small. As a result, even when the decorative molded product 110 is irradiated with visible light, the reflected light 7 and the light 8 reflected on the surface of the release layer 2 (hereinafter referred to as reflected light 8) hardly interfere, and the release layer This is because interference fringes are less likely to occur on the surface 2 (see FIG. 3). That is, when the decorative molded product 110 is irradiated with light typified by sunlight having a spectrum continuously in the visible light region, light such as a fluorescent lamp having a maximum peak in the visible light region is irradiated. Even when it is done, the interference fringe preventing agent 6 is contained in the anchor layer 3, so that an effect that interference fringes hardly occur in the release layer 2 can be obtained. The content of the interference fringe preventing agent 6 in the anchor layer 3 or the design layer 4 is preferably 2 to 10% by weight, more preferably 2 to 5% by weight. If the content of the interference fringe preventing agent 6 is less than 2% by weight, the incident light P is not sufficiently scattered, and the reflected light 7 and the reflected light 8 interfere with each other. In contrast, when the content of the interference fringe preventing agent 6 exceeds 10% by weight, the transparency of the anchor layer 3 cannot be maintained, and the transfer sheet 100 is used. This is because the decorative function of the design layer 4 is significantly impaired in the decorative molded product 110. When the pattern layer 4 is composed of the gloss layer 41 or the light-transmitting metal vapor-deposited layer 40 having a thickness of 5 nm to 50 nm, the light intensity of the reflected light 7 and the reflected light 8 is close. Therefore, the interference fringes are likely to be generated remarkably on the surface of the release layer 2. Therefore, it is particularly preferable that either one of the anchor layer 3 or the design layer 4 contains the above amount of the interference fringe preventing agent 6.

  Although there is no restriction | limiting as a material of the interference fringe prevention agent 6, For example, the interference fringe prevention agent which consists of organic polymers, such as inorganic substances, such as a silica, an alumina, a calcium carbonate, barium sulfate, an acrylic resin, polyethylene, a urethane resin, a polycarbonate, polyamide Is mentioned. The average particle size of the interference fringe preventing agent 6 is preferably 0.5 μm to 20 μm, more preferably 0.5 μm to 10 μm. In this case, the interface between the anchor layer 3 and the permeable metal vapor deposition layer 40 is preferably 0.1 μm to 5 μm in terms of root mean square roughness. When the roughness of the interface is 0.1 μm or less in terms of root mean square roughness, the incident light P is not sufficiently scattered, the reflected light 7 and the reflected light 8 interfere, and interference fringes are formed on the surface of the release layer 2. As a result, the decorativeness of the design layer 4 is impaired. On the other hand, when the roughness of the interface is 5 μm or more in terms of root mean square roughness, the shape of the design applied to the design layer 4 is deformed. Therefore, when the decorative molded product 110 is created using the transfer sheet 100 of the present invention, the decorative property of the decorative molded product 110 is lost. Further, when two or more anchor layers are formed between the release layer 2 and the design layer 4, the interference preventing agent 6 may be contained in any of the layers (the front anchor layer 30 or the rear anchor layer 31). (See FIGS. 4 and 5), when it is desired to actively eliminate the interference fringes appearing on the surface of the release layer 2, it is preferable to contain the interference preventing agent 6 in the anchor layer 31 that is in direct contact with the pattern layer 4 (see FIG. 4). 5). It is possible to directly scatter light reflected at the interface between the anchor layer 3 and the design layer 4 by adding an interference fringe preventing agent to the anchor layer 31 after being in direct contact with the design layer 4. This is because the generation of interference fringes can be suppressed most effectively.

  The adhesive layer 5 adheres each of the above layers to the surface to be decorated. Further, the adhesive layer 5 is formed in a portion to be bonded. That is, when the part to be bonded is the entire surface, the adhesive layer 5 is formed on the entire surface. As the adhesive layer 5, a heat-sensitive or pressure-sensitive resin suitable for the material to be decorated is used as appropriate. For example, when the material to be decorated is an acrylic resin, an acrylic resin may be used. If the material to be decorated is polyphenylene oxide / polystyrene resin, polycarbonate resin, styrene copolymer resin, or polystyrene blend resin, acrylic resin, polystyrene resin, polyamide having affinity with these resins A series resin or the like may be used. Furthermore, when the material to be decorated is a polypropylene resin, chlorinated polyolefin resin, chlorinated ethylene-vinyl acetate copolymer resin, cyclized rubber, and coumarone indene resin can be used. Examples of the method for forming the adhesive layer 5 include a coating method such as a gravure coating method, a roll coating method, and a comma coating method, a printing method such as a gravure printing method, and a screen printing method.

  Next, the decorative molded product 110 of the present invention will be described. The decorative molded product 110 of the present invention is the decorative molded product 110 in which the adhesive layer 5, the design layer 4, the anchor layer 3, and the release layer 2 are sequentially formed on the resin molded product 9. At least one of the pattern layers 4 is configured to contain an interference fringe preventing agent 6 (see FIG. 6).

  When at least one of the anchor layer 3 or the design layer 4 includes the interference preventing agent 6, even when the decorative molded product 110 of the present invention is irradiated with visible light, the incident light P is hardly reflected and scattered. Therefore, the reflected light 7 and the reflected light 8 hardly interfere with each other, and the generation of rainbows such as interference fringes generated on the surface of the release layer 2 can be suppressed, so that the decorativeness is high.

  The decorative molded product 110 of the present invention can be created by two methods. First, the first form will be described.

  The first form is a method of creating a decoration-formed product 110 by decorating the surface of a resin molded product 9 as a transfer object using the above-described transfer sheet 100 and utilizing a molding simultaneous transfer method by injection molding. is there. (Refer to Drawing 7 (a)-(f)). First, the transfer sheet 100 is fed into a molding die composed of the movable mold 10 and the fixed mold 11 (see FIG. 7A). At that time, the single transfer sheet 100 may be fed one by one, or a necessary part of the long transfer sheet 100 may be intermittently fed. When the long transfer sheet 100 is used, it is preferable to use a feeding device having a positioning mechanism so that the pattern of the transfer sheet 100 matches the register of the molding die. Further, when the transfer sheet 100 is intermittently fed, if the transfer sheet 100 is fixed by the movable mold 10 and the fixed mold 11 after the position of the transfer sheet 100 is detected by a sensor, the transfer sheet 100 is always at the same position. This is convenient because 100 can be fixed and no pattern displacement occurs. After closing the molding die, the molten resin 12 is injected and filled from the gate into the die, and simultaneously with the formation of the transfer object, the transfer sheet 100 is adhered to the surface (see FIG. 7B). After the resin molded product 9 as the transfer target is cooled, the molding die is opened and the decorative molded product 110 is taken out (see FIGS. 7C and 7D). Finally, the substrate sheet 1 is peeled off (see FIG. 7 (e)) to complete the transfer (see FIG. 7 (f)).

  In the second embodiment, the decorative molded product 110 is created by using the transfer sheet 100 and decorating the surface of the transfer object using a transfer method. First, the adhesive layer 5 side of the transfer sheet 100 is brought into close contact with the surface of the resin molded product 9. Next, using a transfer machine such as a roll transfer machine or an up-down transfer machine equipped with a heat-resistant rubber-like elastic body such as silicon rubber, a heat-resistant rubber-like condition set at a temperature of about 80 to 260 ° C. and a pressure of about 490 to 1960 Pa. Heat and pressure are applied from the substrate sheet 1 side of the transfer sheet 100 through the elastic body. By performing in this way, the adhesive layer 5 adheres to the surface of the transfer object. Finally, when the base sheet 1 is peeled off after cooling, peeling occurs at the boundary surface between the base sheet 1 and the release layer 2 and transfer is completed.

  As the material to be transferred, those made of various materials such as the resin molded product 9 can be used. The transfer object may be transparent, translucent, or opaque. Further, the transfer object may be colored or not colored. Examples of the resin include general-purpose resins such as polystyrene resin, polyolefin resin, ABS resin, AS resin, and AN resin. Also, general-purpose engineering resins such as polyphenylene oxide / polystyrene resins, polycarbonate resins, polyacetal resins, acrylic resins, polycarbonate-modified polyphenylene ether resins, polybutylene terephthalate resins, ultrahigh molecular weight polyethylene resins, polysulfone resins, polyphenylene sulfide resins Super engineering resins such as polyphenylene oxide resins, polyarylate resins, polyetherimide resins, polyimide resins, liquid crystal polyester resins, and polyallyl heat-resistant resins can also be used. Furthermore, composite resins to which reinforcing materials such as glass fibers and inorganic fillers are added can also be used.

  A melamine resin is coated on the entire surface of PET film with a thickness of 1 μm, a 1 μm-thick release layer is formed thereon, and an anchor layer containing 10% by weight of silica particles with an average particle diameter of 2 μm is formed thereon with 1 μm acrylic resin A transfer sheet was obtained by sequentially forming a gloss layer made of 3 μm and an adhesive layer 3 μm made of a crylic resin by gravure printing. Next, the obtained transfer sheet was used in a simultaneous molding transfer method to obtain a decorative molded product. The obtained decorative molded product was highly decorative, with no interference fringes observed even when the surface was irradiated with visible light from a three-wavelength fluorescent lamp.

Comparative example

  A melamine resin is applied to the entire surface of 1 μm on a PET film, a 1 μm-thick release layer is formed thereon, an anchor layer is 1 μm, a gloss layer made of acrylic resin is 3 μm, and an adhesive layer is made of acrylic resin 3 μm was sequentially formed by a gravure printing method to obtain a transfer sheet. Next, the obtained transfer sheet was used in a simultaneous molding transfer method to obtain a decorative molded product. When the surface of the obtained decorative molded article was irradiated with visible light from a three-wavelength fluorescent lamp, interference fringes were observed on the surface, and the decoration was low.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used in various molded products such as communication devices such as mobile phones, automobile exterior parts, automobile internal information devices, and home appliances, and is industrially useful.

It is sectional drawing which shows one Example of the transfer sheet which concerns on this invention. It is sectional drawing which shows one Example of the transfer sheet which concerns on this invention. It is sectional drawing which shows one Example of the decorative molded product which concerns on this invention. It is sectional drawing which shows one Example of the transfer sheet which concerns on this invention. It is sectional drawing which shows one Example of the transfer sheet which concerns on this invention. It is sectional drawing which shows one Example of the decorative molded product which concerns on this invention. It is sectional drawing which shows one Example of the manufacturing method of the decorative molded product which concerns on this invention. It is sectional drawing which shows one Example of the decorative molded product which concerns on a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base sheet 2 Peeling layer 3 Anchor layer 4 Design layer 5 Adhesive layer 6 Interference fringe prevention agent 7 Reflected light 8 Reflected light 9 Resin molded product 10 Movable type
11 Fixed mold 12 Resin molded product 40 Metal vapor deposition layer 41 Gloss layer 42 Picture layer 100 Transfer sheet 110 Decorative molded product 200 Decorative molded product 201 Pattern layer 202 Anchor layer 203 Release layer A Visible light P Incident light X Reflected light Y Reflected light

Claims (9)

  In a transfer sheet in which a release layer, an anchor layer, a design layer, and an adhesive layer are sequentially formed on a base sheet, at least one of the anchor layer and the design layer contains an interference fringe preventing agent. Transfer sheet.   The transfer sheet according to claim 1, wherein two or more anchor layers are formed between the release layer and the design layer, and at least one of the anchor layers contains an interference fringe preventing agent.   The transfer sheet according to claim 1, wherein the anchor layer and the design layer are in direct contact, and at least one of the anchor layer and the design layer contains an interference fringe preventing agent.   The transfer sheet according to any one of claims 1 to 3, wherein the pattern layer comprises a semi-permeable metal vapor deposition layer comprising 5 nm to 50 nm and / or a gloss layer.   The transfer sheet according to any one of claims 1 to 4, wherein the interference fringe preventing agent is made of an inorganic material such as silica or alumina, or an organic material such as acrylic resin or urethane.   The transfer sheet according to claim 1, wherein the interference fringe inhibitor has an average particle diameter of 0.5 μm to 10 μm.   The transfer sheet according to any one of claims 1 to 6, wherein the root mean square roughness of the irregular shape at the interface between the anchor layer and the pattern layer is 0.1 µm to 5 µm.   In a decorative molded product in which an adhesive layer, a design layer, an anchor layer, and a release layer are sequentially formed on a resin molded product, at least one of the anchor layer or the design layer contains an interference fringe inhibitor. Decorative molded product. The decorative molded product according to claim 8, wherein the anchor layer and the design layer are in direct contact with each other and the interface thereof is uneven.

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