JP2011093296A - Metallic vapor-deposited transfer sheet for molding and decoration method using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metallic vapor-deposited transfer sheet for molding, which needs no washing process and can be manufactured efficiently and which has a vapor deposition layer capable of dealing with patterns corresponding to various requirements on demand, and to provide a decoration method for obtaining moldings having superior metallic luster, high designability, and high-quality surface decoration, in a method for performing injection molding simultaneous decoration using the metallic vapor-deposited transfer sheet. <P>SOLUTION: The metallic vapor-deposited transfer sheet for molding has a structure in which at least a separation layer, a metallic vapor deposition layer and a heat resistant layer are laminated in this order on the opposite side of a base material sheet having on one side a heat resistant sliding layer. Also, in the decoration method, the metallic vapor-deposited transfer sheet is used, a metallic thin film transfer foil is prepared by thermally transferring a vapor deposition layer with an arbitrary pattern on a separate transfer foil on which an arbitrary pattern is formed by fusion transfer, the metallic thin film transfer foil is then inserted into an injection molding die, melted resin is further injected to perform molding and, concurrently with this molding, decoration is added to the surface of the molding. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a metal-deposited transfer sheet for molding and a decoration method using the same, and more specifically, it can be efficiently manufactured without requiring a water washing treatment, and further changes to patterns according to various demands on demand. With regard to a metal vapor-deposited transfer sheet having a vapor-deposited layer that can be used, and using the metal vapor-deposited transfer sheet, a method of performing simultaneous injection-molding decoration has excellent metallic luster, high designability, and high quality. The present invention relates to a decorating method for obtaining a molded product having surface decoration.

  Conventionally, transfer foil has been widely used as a decorative means for molded products. In particular, in the simultaneous molding transfer method in which transfer is performed simultaneously with molding, the transfer foil is stretched at the time of molding to the surface of the molded product in a three-dimensional shape. Can be decorated. As such a molding simultaneous transfer method, there is an in-mold injection molding simultaneous decorating method in which a transfer layer from a transfer foil is transferred and formed on the surface of a molded product by the heat pressure of molten resin at the time of injection molding. . A metal thin film transfer foil having a metal thin film layer partially formed as a pattern by vacuum deposition of aluminum or the like is also used in order to impart a high design property with a metallic luster.

  For example, Patent Document 1 describes a transfer foil used for surface decoration having a partial metallic feeling in various containers and the like. In this transfer foil, a configuration in which a pattern layer, a partial vapor deposition layer, and an adhesive layer are mainly laminated as a transfer layer on a substrate is shown. In this transfer foil, the pattern layer is formed by gravure printing or silk screen printing, and a printing plate is prepared and printed. Therefore, the pattern cannot be freely changed and cannot be changed on demand according to various requirements. Further, the partial vapor deposition layer in the above transfer foil is provided with a primer layer for water washing in a portion where the metallic luster is not required, and the vapor deposition layer on the primer layer is removed by water washing to form a partial vapor deposition layer. Is. However, this transfer foil requires a water washing treatment, which is very troublesome in production and has a problem of lowering production efficiency. Moreover, the vapor deposition layer formed partially (as a pattern) is a negative pattern of a portion in which a water-washing primer layer is provided by printing, but the pattern cannot be freely changed and meets various requirements. It cannot handle patterns.

Japanese Patent Laid-Open No. 8-90999

  Therefore, an object of the present invention is to provide a metal-deposited transfer sheet for molding process having a vapor-deposited layer that can be efficiently manufactured without requiring a water-washing process, and that can be adapted to a pattern according to various demands on demand. In addition, using a thermal transfer sheet provided with a heat-melt transferable color material layer on a base sheet and another transfer foil provided with a transfer layer on the base sheet, an arbitrary pattern is thermally transferred in advance. Metal thin film transfer that can be formed and formed by thermally transferring a metal vapor deposition layer in an arbitrary pattern on the transfer layer of the transfer foil on the transfer layer of the pattern. In the method of preparing foil, inserting the metal thin film transfer foil into an injection mold and adding decoration to the surface of the molded product at the same time as injection molding, it has excellent metallic luster, high designability, high Molded products with quality surface decoration It is to provide a decorating method.

  The above object is achieved by the present invention described below. That is, the present invention is a metal vapor deposition characterized in that at least a release layer, a metal vapor deposition layer, and a heat resistant layer are laminated in this order on the opposite surface of a base sheet having a heat resistant slipping layer on one surface. The transfer sheet was configured. With this configuration, at least the release layer, the metal vapor deposition layer, and the heat-resistant layer are laminated in this order on the transfer foil in which at least the release layer, the hard coat layer, and the adhesive layer are laminated in this order on the base sheet. Prepare a metal thin film transfer foil by thermally transferring the deposited layer in an arbitrary pattern, insert this metal thin film transfer foil into an injection mold, inject the molten resin, and mold it on the surface of the molded product. A molded product having a metallic luster, a high design property, and a high quality surface decoration can be obtained.

  Metal vapor deposition transfer, characterized in that a heat resistant layer is provided between the laminated release layer and the metal vapor deposition layer on the opposite surface of the base sheet having the heat resistant slipping layer on the one surface. The sheet configuration was adopted. With this configuration, the metal vapor deposition layer is sandwiched between the heat-resistant layers from above and below to eliminate damage to the metal vapor deposition layer due to the heat pressure applied during molding, and a molded product having a surface decoration with high-quality metallic luster. can get.

  A metal vapor-deposited transfer sheet, wherein an adhesive layer is further provided on the uppermost heat-resistant layer laminated on the opposite surface of the base material sheet having the heat-resistant slip layer on one side. The configuration was as follows. With this configuration, the adhesion between the vapor deposition layer transferred from the metal vapor deposition transfer sheet and the transfer target (another transfer foil) is improved. Moreover, the transfer sensitivity of the vapor deposition layer of a metal vapor deposition transfer sheet is also improved.

  Said peeling layer was set as the structure of the metal vapor deposition transfer sheet characterized by containing a vinyl chloride-vinyl acetate copolymer and an acrylic resin. Using this metal vapor deposition transfer sheet, the vapor deposition layer is transferred to another transfer foil, a metal thin film transfer foil is prepared, and a molded product molded by resin and the metal thin film transfer foil are stacked to form a molded product. The surface has excellent metallic luster, high designability, and high quality surface decoration.

  Said release layer contains a vinyl chloride-vinyl acetate copolymer copolymerized with dicarboxylic acid in a ratio of 30% to 60% by mass with respect to the resin of the entire release layer. It was set as the structure of the vapor deposition transfer sheet. Using this metal vapor deposition transfer sheet, the vapor deposition layer is transferred to another transfer foil, a metal thin film transfer foil is prepared, and a molded product molded by resin and the metal thin film transfer foil are stacked to form a molded product. A layer including a metal vapor-deposited layer can be transferred to the surface to add decoration. At that time, the adhesion between the transferred layer on the surface of the molded product and the molded product can be increased, and the decoration is not peeled off from the molded product in handling. Moreover, the adhesion between the metal vapor deposition layer and the molded product to be transferred can be improved.

  An adhesion layer containing a vinyl chloride-vinyl acetate copolymer was provided between the release layer and the metal vapor deposition layer. Using this metal vapor deposition transfer sheet, the vapor deposition layer is transferred to another transfer foil, a metal thin film transfer foil is prepared, and a molded product molded by resin and the metal thin film transfer foil are stacked to form a molded product. It is possible to enhance the adhesion between the molded product and the layer transferred to the surface of the molded product having the surface decoration obtained by adding decoration to the surface.

  Using the metal vapor-deposited transfer sheet described in any of the above, at least a release layer, a hard coat layer, and an adhesive layer are laminated on the base sheet in this order, and the vapor-deposited layer is formed in an arbitrary pattern. However, an arbitrary pattern is preliminarily formed by thermal transfer on the transfer foil using a thermal transfer sheet in which a base material sheet is provided with a heat-melt transferable color material layer, and at least one of the patterns is transferred. Prepare a metal thin film transfer foil on which the vapor-deposited layer has been thermally transferred onto the transfer layer and on the transfer layer of the transfer foil, insert the metal thin film transfer foil into an injection mold, and inject a molten resin. Thus, the decoration method is characterized in that a molding process is performed, and at the same time as the molding process, decoration is added to the surface of the molded product. According to this decoration method, the pattern layer and the vapor deposition layer can be formed by thermal transfer recording in an arbitrary pattern according to various requirements, and there is no damage to the metal vapor deposition layer due to the heat pressure applied at the time of molding. It is possible to obtain a molded product having a high metallic luster, a high design property, and a high-quality surface decoration.

  The metal vapor deposition transfer sheet for molding according to the present invention can be efficiently manufactured without the need for a water washing treatment when the partial vapor deposition layer is formed on the transfer foil by taking the above-described configuration. In addition, a transfer foil in which at least a release layer, a hard coat layer, and an adhesive layer are laminated in this order on a base sheet is arbitrarily used by using a heat transfer sheet in which a base sheet is provided with a heat-melt transferable color material layer. The pattern can be preliminarily formed by thermal transfer, and the vapor deposition layer can be thermally transferred in an arbitrary pattern using the above metal vapor deposition transfer sheet on at least a part of the pattern and on the transfer layer of the transfer foil. Thus, the metal thin film transfer foil can be produced efficiently. That is, a metal thin film transfer foil having an arbitrary pattern according to various requirements can be provided on demand. Furthermore, the metal thin film transfer foil can be formed by thermal transfer recording using a metal vapor deposition transfer sheet in an arbitrary pattern according to various requirements on demand, and can be adapted to many consumer needs, It is very satisfactory.

  Moreover, the decoration method to the surface of the molded product of the present invention is the above-mentioned metal vapor deposition transfer sheet for molding processing, and at least a release layer, a hard coat layer, and an adhesive layer are laminated in this order on the substrate sheet. The deposited layer was thermally transferred to the transfer foil in an arbitrary pattern, provided that an arbitrary pattern was thermally transferred to the transfer foil using a thermal transfer sheet provided with a heat-melt transferable color material layer on a base sheet. And forming a metal thin film transfer foil on which the vapor deposition layer is thermally transferred on at least a part of the pattern and on the transfer layer of the transfer foil, and the metal thin film transfer foil is formed by injection molding. This is a method of inserting into a mold and injecting a molten resin to perform molding, and simultaneously adding decoration to the surface of the molded product. Thereby, the damage to the metal vapor deposition layer by the heat pressure applied at the time of shaping | molding is reduced, and the molded article which has the outstanding metallic luster, the design property, and the high quality surface decoration is obtained.

It is sectional drawing which shows one embodiment which is the metal vapor deposition transfer sheet for shaping | molding processes of this invention. It is sectional drawing which shows an example of the transfer foil used with the decorating method to the molded article surface of this invention. It is a figure explaining the outline of the decorating method to the molded article surface of this invention. It is sectional drawing which shows one embodiment which is the metal vapor deposition transfer sheet for shaping | molding processes of this invention.

Next, an embodiment of the invention will be described in detail.
FIG. 1 shows one embodiment which is a metal vapor deposition transfer sheet for molding processing of the present invention. A heat-resistant slipping layer 3 is provided on one surface of the substrate sheet 2, and a release layer 4, a metal vapor-deposited layer 5, and a heat-resistant layer 6 are laminated in this order on the opposite surface of the substrate sheet 2. This is a metal vapor deposition transfer sheet 1 for molding processing. In FIG. 1, a heat resistant layer can be provided between the release layer 4 and the metal vapor deposition layer 5, and damage to the metal vapor deposition layer due to the heat pressure applied during molding can be further reduced. In this case, the metal vapor deposition layer is sandwiched between the heat resistant layers from above and below. Moreover, as shown in FIG. 4, it has the structure of the peeling layer 4, the metal vapor deposition layer 5, the heat resistant layer 6, and the contact bonding layer 22 on the surface opposite to the surface in which the heat resistant slipping layer 3 of the base material sheet 2 was provided. By providing the adhesive layer 22 on the outermost surface of the layer to which the metal vapor-deposited transfer sheet is transferred, the adhesion between the vapor-deposited layer 13 transferred from the metal vapor-deposited transfer sheet and the transfer target (another transfer foil) is improved. Can be made. Moreover, an antistatic layer can be provided on the outermost surface on the transfer surface side of the metal vapor-deposited transfer sheet in order to prevent troubles due to static electricity, wrinkles of the transfer sheet, etc. due to transportability in the thermal transfer recording of the metal vapor-deposited transfer sheet. .
The thermal transfer of the metal vapor-deposited transfer sheet 1 for molding is performed by heating from the heat-resistant slipping layer side using a heat source such as a thermal head, and is peeled off at the interface between the base material sheet 2 and the peeling layer 4. Transfer to the transfer target. In FIG. 1, the vapor deposition layer 13 is a layer composed of the peeling layer 4, the metal vapor deposition layer 5, and the heat resistant layer 6. However, the vapor deposition layer 13 is a layer including various known functional layers such as other heat resistant layers and adhesive layers. May be.

  Moreover, FIG. 2 shows an example of the transfer foil used in the method for decorating the surface of the molded product of the present invention. 2) in FIG. 2 is a part before the deposition layer is partially transferred from the metal deposition transfer sheet for molding, and 2) in FIG. 2 is a partial transfer of the deposition layer from the metal deposition transfer sheet for molding. It is the transfer foil which has the partial vapor deposition layer after having performed. The transfer foil 7 shown in 1) of FIG. 2 has a configuration in which a release layer 9, a hard coat layer 10, an anchor layer 11, and an adhesive layer 12 are laminated in this order on a substrate sheet 8. The layer in which the hard coat layer 10, the anchor layer 11, and the adhesive layer 12 are laminated is transferred as a transfer layer 14 to the surface of the molded product at a time. However, the pattern layer 15 is formed in advance on the transfer foil 7 by thermally transferring an arbitrary pattern using a thermal transfer sheet in which a base material sheet is provided with a heat-melt transferable color material layer.

  Then, as shown in 2) of FIG. 2, the heat-resistant transfer layer 6, the metal vapor-deposited layer 5 and the peeling are formed in an arbitrary pattern by heating the thermal head using the metal vapor-deposition transfer sheet for molding as shown in FIG. The partial vapor deposition layer 13 on which the layer 4 is laminated is transferred onto the pattern layer 15 and onto the adhesive layer 12 of the transfer foil 7. Further, in the transfer foil 7 ′ shown in FIG. 2, the transferred body and the adhesive layer side are overlapped, and the hard coat layer 10 is peeled off from the release layer 9 by heat and the hard coat layer 10 and the anchor layer 11. The adhesive layer 12, the pattern layer 15, and the partial vapor deposition layer 13 are transferred to the transfer target.

Below, each layer which comprises the metal vapor deposition transfer sheet for shaping | molding processing of this invention is demonstrated in detail.
(Substrate sheet)
As the base material sheet 2 constituting the metal deposition transfer sheet for molding according to the present invention, any material may be used as long as it has a certain level of conventionally known heat resistance and strength. For example, the thickness is about 3 to 10 μm. Polyethylene terephthalate film, 1,4-polycyclohexylenedimethylene terephthalate film, polyethylene naphthalate film, polyphenylene sulfide film, polystyrene film, polypropylene film, polysulfone film, aramid film, polycarbonate film, polyvinyl alcohol film, cellophane, cellulose acetate, etc. Cellulose derivatives, polyethylene films, polyvinyl chloride films, nylon films, polyimide films, ionomer films and the like can be used.

(Heat resistant slipping layer)
The metal-deposited transfer sheet for molding according to the present invention prevents adverse effects such as sticking and wrinkles due to thermal head heat on the back surface of the base sheet, that is, the surface opposite to the surface on which the transfer layer such as the metal-deposited layer is provided. Therefore, the heat-resistant slip layer 3 is provided. The resin for forming the heat-resistant slipping layer may be any conventionally known resin such as polyvinyl butyral resin, polyvinyl acetoacetal resin, polyester resin, vinyl chloride-vinyl acetate copolymer, polyether resin, polybutadiene. Resin, styrene-butadiene copolymer, acrylic polyol, polyurethane acrylate, polyester acrylate, polyether acrylate, epoxy acrylate, urethane or epoxy prepolymer, nitrocellulose resin, cellulose nitrate resin, cellulose acetopropionate resin, cellulose acetate Butyrate resin, cellulose acetate hydrodiene phthalate resin, cellulose acetate resin, aromatic polyamide resin, polyimide resin, polyamideimide resin, polycarbonate Boneto resins, and chlorinated polyolefin resins.

  In addition, in order to improve the heat resistance of the heat resistant slipping layer, the coating film strength and the adhesion to the base sheet, a reaction cured product of a thermoplastic resin having a reactive group in the resin and a polyisocyanate, an unsaturated bond A reaction product with a monomer or an oligomer having a hydrogen atom can be used. The curing method is not particularly limited, and the curing means is not particularly limited by heating or irradiation with ionizing radiation. In addition, a slipperiness-imparting agent can be added or overcoated to the heat-resistant slipping layer. Examples of the slipperiness-imparting agent include phosphate ester, silicone oil, graphite powder, silicone-based graft polymer, fluorine-based graft polymer, acrylic Examples of the silicone polymer include silicone graft polymers, acrylic siloxanes, and aryl siloxanes. Preferably, the polymer is a layer made of a polyol, for example, a polyalcohol polymer compound, a polyisocyanate compound, and a phosphate ester compound, and further includes a filler. Can be added.

The heat resistant slipping layer is prepared by adding the resin described above, if necessary, a slipperiness imparting agent and a filler, and dissolving or dispersing in an appropriate solvent to prepare a heat resistant slipping layer forming ink. Can be applied to the back surface of the base material sheet by a forming means such as a gravure printing method, a screen printing method, a reverse coating method using a gravure plate, and dried. The coating amount of the heat resistant slipping layer is about 0.1 to ² g / m ² in terms of solid content.

(Peeling layer)
The release layer 4 is a material that does not affect the metallic luster of the surface as a partial vapor deposition layer of the metal vapor deposition transfer sheet, as well as a protective layer on the metal vapor deposition layer transferred to the transfer target (transfer foil). Form with. The release layer functions to improve the adhesion between the metal vapor deposition layer and the molded product to be transferred. The material of the release layer may be either a thermoplastic resin or a curable resin. For example, a coating liquid containing an acrylic resin, a polyester resin, a cellulose derivative resin, a polyvinyl acetal resin, a polyvinyl butyral resin, a vinyl chloride-vinyl acetate copolymer, a chlorinated polyolefin, and a copolymer of these resin groups. Can be applied and dried by means of forming means such as a conventionally known gravure printing method, screen printing method, reverse roll coating method using a gravure plate, and the like. The application amount of the release layer is about 0.01 to 3 g / m ^{2 in} a dry state.

  The release layer preferably includes a vinyl chloride-vinyl acetate copolymer and an acrylic resin. With the metal vapor deposition transfer sheet having the structure, the vapor deposition layer 13 is transferred to another transfer foil 7 to form a metal thin film transfer foil 7 ′, which is then inserted into an injection mold 17 and subjected to an injection molding process. A molded product 20 whose surface is decorated with a transfer layer 14 including the layer 13 is manufactured. Thereby, the surface of the molded product has excellent metallic luster, high designability, and high-quality surface decoration.

In order to increase the adhesion between the transfer layer 14 including the vapor deposition layer 13 and the molded product 20, the release layer is made of vinyl chloride-vinyl acetate copolymerized with dicarboxylic acid among vinyl chloride-vinyl acetate copolymers. The specific resin that is a vinyl acetate copolymer is preferably contained in a proportion of 30% or more and 60% or less with respect to the resin of the entire release layer.
This is considered to be an effect that is manifested because the dicarboxylic acid group of the specific resin has a function of improving the adhesion to the surface of the resin molded product. As the resin used in combination with the vinyl chloride-vinyl acetate copolymer obtained by copolymerizing carboxylic acid in the release layer, an acrylic resin is preferable because the function of the surface protective layer is high.

  When the vinyl chloride-vinyl acetate copolymer copolymerized with dicarboxylic acid is contained in a ratio of less than 30% by mass with respect to the resin of the entire release layer, the transferred layer on the surface of the molded product, Adhesiveness with a molded product is lowered, which is not preferable. On the other hand, when the vinyl chloride-vinyl acetate copolymer copolymerized with dicarboxylic acid is contained in a mass ratio of more than 60% with respect to the resin of the entire release layer, another metal vapor deposition transfer sheet for molding is used. When transferring the vapor deposition layer 13 to the transfer foil 7, a transfer failure is likely to occur, which is not preferable.

  Examples of the curable resin in the release layer include a two-component reactive resin, a thermosetting resin, and an ionizing radiation curable resin. Examples of the two-component reactive resin include polyester / isocyanate, polyether / isocyanate, acrylic / amino resin, amino alkyd, and the like. In addition, fine particles of inorganic compounds such as talc and silica can be added to the release layer so as not to affect the transparency of the film, thereby improving the peelability.

(Metal vapor deposition layer)
The metal deposition layer 5 can be formed by a method such as metal deposition, sputtering, or ion plating. Examples of the metal forming the metal vapor deposition layer include metals such as aluminum, chromium, nickel, cobalt, copper, gold, silver, tin, zinc, brass, and stainless steel, alloys, and metal oxides. The thickness is usually 200 to 800 mm, preferably 400 to 600 mm.

(Heat resistant layer)
The heat resistant layer 6 is provided in order to reduce the damage caused by the heat pressure during the molding of the metal vapor deposition layer. This heat-resistant layer 6 is a surface layer of a layer laminated in the order of release layer / metal vapor-deposited layer / heat-resistant layer from the substrate sheet side of the metal vapor-deposited transfer sheet, but between the release layer and the metal vapor-deposited layer. In addition, since the heat-resistant layer that can be provided is common to the materials used, it will be described collectively. Examples of the resin constituting the heat-resistant layer include curable resins such as the two-component reactive resin, thermosetting resin, and ionizing radiation curable resin described in the release layer. In particular, a two-component reaction type resin is preferable because of high transfer sensitivity due to thermal head heating.

  Examples of the two-component reactive resin include the following ones having a hydroxyl group that reacts with isocyanate. Examples thereof include isocyanate-reactive cellulose resins, isocyanate-reactive acetal resins, isocyanate-reactive vinyl resins, isocyanate-reactive acrylic resins, isocyanate-reactive phenoxy resins, and isocyanate-reactive styrol resins. The isocyanate used in combination with these resins includes the following polyisocyanate compounds, and the isocyanate-reactive resin and the polyisocyanate compound react to form a cured product.

  As the polyisocyanate compound, various diisocyanates, triisocyanates, and polyisocyanates can be used. For example, tolylene diisocyanate, 4,4'-diphenylmethane diisocyanate, xylylene diisocyanate, 1,5-naphthylene diisocyanate, 1,4 -Tetramethylene diisocyanate, hexamethylene diisocyanate, isopropylidenecyclohexyl diisocyanate, isophorone diisocyanate, triphenylmethane triisocyanate and burette body, trimethylolpropane adduct body, isocyanurate trimer and the like.

In addition, fine particles of inorganic compounds such as talc and silica can be added to the heat resistant layer so as not to affect the transparency of the film, thereby improving the foil breakage. The above-mentioned curable resin, curing agent, and other coating solutions prepared by dissolving or dispersing additives, if necessary, in a solvent are used as a conventional gravure printing method, screen printing method, reverse using a gravure plate The heat-resistant layer can be formed by applying and drying by a forming means such as a roll coating method. The coating amount of the heat resistant layer is about 0.1 to 3 g / m ^{2 in} a dry state.

(Adhesion layer)
In the metal vapor deposition transfer sheet of the present invention, an adhesion layer can be provided between the release layer and the metal vapor deposition layer, or between the heat resistant layer and the metal vapor deposition layer, thereby improving the adhesion with the metal vapor deposition layer. The adhesion between the layer transferred to the surface of the molded product having the surface decoration and the molded product can be improved, which is preferably performed. The adhesion layer is more preferably formed from a thermoplastic resin having a glass transition temperature of 60 to 100 ° C., for example, vinyl chloride-vinyl acetate copolymer resin, acrylic resin, epoxy resin, polyester resin, polycarbonate resin, butyral resin. It is preferable to select a resin having an appropriate glass transition temperature from a resin having good adhesiveness when heated, such as a polyamide resin and a vinyl chloride resin. In addition, fine particles of inorganic compounds such as talc and silica can be added to the adhesion layer so as not to affect the transparency of the film, and the foil breakage can be improved.

Adhesion layer is the above-mentioned heat-sensitive adhesive, additives are added as needed, dissolved or dispersed in a general-purpose solvent to prepare a coating solution, and the surface of the release layer is a conventionally known gravure coat, gravure reverse coat, etc. It is preferable to form by coating and drying so that the coating amount is 0.1 to 0.5 g / m ² (dry basis). If the coating amount of the adhesion layer is less than 0.1 g / m ² , the adhesion with the molded product will be insufficient. On the other hand, when the application amount of the adhesion layer is more than 0.5 g / m ² , the transfer sensitivity of the metal vapor-deposited transfer sheet is lowered, and the transfer failure of the vapor-deposited layer 13 tends to occur.

(Adhesive layer)
In the present invention, an adhesive layer can be further provided on the uppermost heat-resistant layer laminated on the opposite surface of the substrate sheet having the heat-resistant slip layer of the metal vapor-deposited transfer sheet. As the adhesive layer, any conventionally known heat-sensitive adhesive can be used, but it is more preferably formed from a thermoplastic resin having a glass transition temperature of 50 to 100 ° C., for example, an ultraviolet absorbing resin, an acrylic resin, or vinyl chloride. -Select a resin having an appropriate glass transition temperature from a resin having a good adhesive property when heated, such as a vinyl acetate copolymer resin, an epoxy resin, a polyester resin, a polycarbonate resin, a butyral resin, a polyamide resin, or a vinyl chloride resin. It is preferable. The adhesive layer is prepared by dissolving or dispersing the above-mentioned heat-sensitive adhesive in a general-purpose solvent to prepare a coating solution, and the coating amount is applied to the surface of the heat-resistant layer by a conventionally known method such as gravure coating or gravure reverse coating ( Drying standard) It is formed by coating and drying so as to be about 0.2 to 5 g / m ² .

(Decoration method for molded product surface)
The method for decorating the surface of the molded product of the present invention was such that at least a release layer, a hard coat layer, and an adhesive layer were laminated in this order on the base sheet using the metal deposition transfer sheet for molding. The vapor deposition layer 13 is thermally transferred to the transfer foil 7 in an arbitrary pattern, provided that the transfer foil 7 has an arbitrary pattern using a thermal transfer sheet provided with a heat-melt transferable color material layer on a base sheet. A metal thin film transfer foil on which the vapor deposition layer 13 is thermally transferred is prepared on at least a part of the pattern and on the transfer layer 14 of the transfer foil 7 in advance by heat transfer. In this method, a foil is inserted into an injection mold, and a molten resin is further injected to perform a molding process. At the same time as the molding process, a decoration is added to the surface of the molded product.

  A method for decorating the surface of the molded product will be described with reference to FIG. As shown in 1) of FIG. 3, the metal deposition transfer sheet 1 for molding and the transfer foil 7 are overlapped. At that time, the deposition layer 13 side of the metal deposition transfer sheet for molding 1 to be transferred and the adhesive layer of the transfer foil 7 (on the side opposite to the base sheet) are stacked in contact with each other. The heating signal is changed so as to form a pattern, and heating is performed from the heat-resistant slipping layer side of the metal deposition transfer sheet 1 for molding. However, the transfer foil to be used is one in which the pattern layer 15 is previously transferred as shown in 1) of FIG.

  The pattern layer 15 uses a thermal transfer sheet in which a hot melt ink layer in which a colorant such as a pigment or a dye is dispersed in a binder such as a hot melt wax or resin is supported on a base sheet such as a plastic film. An arbitrary pattern is formed by a heating device such as a thermal head. A print image formed by this melt transfer method has high density and excellent sharpness, and is suitable for recording binary images such as characters and line drawings. In addition, a multi-color or full-color image can be formed by subtractive color mixing by superposing and recording hot-melt ink layers such as yellow, magenta, cyan, and black.

  As shown in 2) of FIG. 3, the vapor deposition layer 13 is transferred from the metal vapor deposition transfer sheet 1 for forming and formed on the pattern layer 15 and the adhesive layer of the transfer foil 7 by heating the thermal head. The vapor deposition layer 13 shown in 2) of FIG. 3 is transferred and formed on the entire surface of the adhesive layer 12 including the pattern layer 15. Therefore, even if the vapor-deposited layer transferred and formed in this way has a solid shape on the entire surface, as shown in 2) of FIG. 2, the vapor-deposited layer is partially formed on the adhesive layer 12 of the transfer foil 7. It may be formed by being transferred from the metal vapor deposition transfer sheet 1 for molding as the partial vapor deposition layer 13 provided in. In addition, what was formed by 2) of FIG. 2 is the metal thin film transfer foil 7 'which has a partial vapor deposition layer. However, since the molten resin is relatively high in the vicinity of the molten resin injection gate provided in the molding die, the vapor deposition layer 13 is transferred to the vicinity of the gate by the metal vapor deposition transfer sheet of the present invention. By doing so, damage to the metal vapor deposition layer due to the thermal pressure applied during molding is eliminated, and a molded product having a surface decoration with high-quality metallic luster can be obtained.

  Next, as shown in 3) of FIG. 3, the metal thin film transfer foil 7 ′ having the vapor deposition layer 13 is placed so that the vapor deposition layer faces the gate 18 where the molten resin is injected, in other words, the metal It arrange | positions so that the base material sheet 8 side of thin film transfer foil 7 'may face the cavity surface of the metal mold | die 17 of a shaping | molding. Then, as shown in 4) of FIG. 3, the other mold 17 'for molding is inserted into the recess of the mold 17 with the metal thin film transfer foil 7' interposed therebetween, and is also provided on the mold 17 '. Molten resin 21 is injected from the gate 18. Then, as shown in 5) of FIG. 3, the resin injected into the space between the mold 17 and the mold 17 'is filled and molded. Then, as shown in 6) of FIG. 3, the mold is cooled, the mold is opened, the molded product 20 is taken out of the molds 17 and 17 ', the base sheet 8 of the transfer foil 7' is peeled off from the molded product 20, By removing, a molded product 20 in which a laminate composed of the hard coat layer 10, the anchor layer 11, the adhesive layer 12, the pattern layer 15, and the partial vapor deposition layer 13 is transferred to the surface is obtained.

  The metal foil transfer sheet for molding process used in the method for decorating the surface of the molded product of the present invention is a transfer foil, which is a laminate of a hard coat layer, an anchor layer, and an adhesive layer on a base sheet. A transfer layer as an example is provided, and conventionally known transfer foils can be used as this transfer foil.

Next, the present invention will be described more specifically with reference to examples. Hereinafter, unless otherwise specified, parts or% is based on mass.
Example 1
Using a gravure coater on one side of a 6 μm thick polyethylene terephthalate film base sheet, the following heat-resistant slipping layer coating solution was applied and dried at a rate of 0.3 g / m ^{2 in} terms of solid content. A heat resistant slipping layer was formed.

<Coating fluid for heat resistant slipping layer>
-Polymethylmethacrylate (BR-85, manufactured by Mitsubishi Rayon Co., Ltd.) 11.1 parts-Melamine aldehyde condensate (Eposter S, manufactured by Nippon Shokubai Co., Ltd.) 2.9 parts-Polyester resin (Elitel UE-3200, Unitika ( 0.3 parts) Zinc stearyl phosphate (LBT-1830, manufactured by Sakai Chemical Co., Ltd.) 5.7 parts, 0.6 parts of toluene, 79.2 parts of methyl ethyl ketone

On the side opposite to the surface provided with the heat-resistant slip layer of the base material sheet, using the following release layer coating solution, it was applied and dried so that the coating amount was 0.4 g / m ^{2 in} terms of solid content. A release layer was formed.

<Coating liquid for release layer>
・ Acrylic resin (Dianar BR83, manufactured by Mitsubishi Rayon Co., Ltd.) 13.50 parts ・ Vinyl chloride-vinyl acetate copolymer resin 1.50 parts (Solvine C, manufactured by Nissin Chemical Industry Co., Ltd.)
・ Polyester resin (Byron 200, manufactured by Toyobo Co., Ltd.) 0.09 parts ・ Amorphous silica 3.00 parts ・ Methyl ethyl ketone 70.09 parts ・ Toluene 18.12 parts

Further, a heat-resistant layer was formed on the release layer by applying and drying the following heat-resistant layer coating solution with a gravure coater so that the coating amount was 1.0 g / m ² in a dry state. .
<Coating fluid for heat-resistant layer>
・ Acrylic resin (acrylic resin / methyl methacrylate = 97/3) 1.25 parts ・ Tolylene diisocyanate 1.875 parts ・ Methyl ethyl ketone 0.2 parts ・ Toluene 1.8 parts

Furthermore, a metal vapor deposition layer having a thickness of 300 mm was formed on the heat resistant layer by vacuum deposition of aluminum. On the aluminum metal vapor-deposited layer, the heat-resistant layer is applied by drying at a rate of 1.0 g / m ^{2 in} a dry state by a gravure coater using the heat-resistant layer coating solution used above. Formed. Furthermore, on the heat-resistant layer, using the following adhesive layer coating solution, an adhesive layer is formed by applying and drying so that the coating amount is 0.42 g / m ^{2 in} terms of solid content. The metal vapor deposition transfer sheet for molding processing of Example 1 was produced. The layer configuration of the metal vapor-deposited transfer sheet of Example 1 is adhesive layer / heat-resistant layer / metal vapor-deposited layer / heat-resistant layer / release layer / base sheet / heat-resistant slip layer.

<Coating liquid for adhesive layer>
・ Acrylic resin (Dianar BR83, manufactured by Mitsubishi Rayon Co., Ltd.) 20 parts ・ Methyl ethyl ketone 40 parts ・ Toluene 40 parts

(Example 2)
In molding a metal deposition transfer sheet prepared in Example 1 above, the coating amount of the heat-resistant layer between the metal deposition layer adhesive layer, from 1.0 g / m ² to 2.45 g / m ² changed. Others were the same as in Example 1, and a metal vapor-deposited transfer sheet of Example 2 was produced. The layer configuration of the metal vapor-deposited transfer sheet of Example 2 is adhesive layer / heat-resistant layer / metal vapor-deposited layer / heat-resistant layer / release layer / base sheet / heat-resistant slip layer.

(Example 3)
Example 3 is the same as Example 1 except that the heat-resistant layer between the release layer and the metal vapor deposition layer is not provided in the metal vapor deposition transfer sheet for molding process produced in Example 1 above. A metal vapor-deposited transfer sheet was prepared. The layer configuration of the metal vapor-deposited transfer sheet of Example 3 is adhesive layer / heat-resistant layer / metal vapor-deposited layer / release layer / base sheet / heat-resistant slip layer.

Example 4
In molding a metal deposition transfer sheet prepared in Example 1 above, the coating amount of the heat-resistant layer between the metal deposition layer adhesive layer, from 1.0 g / m ² to 2.45 g / m ² changed. Further, a metal vapor-deposited transfer sheet of Example 4 was produced in the same manner as in Example 1 except that a heat-resistant layer between the release layer and the metal vapor-deposited layer was not provided. In addition, the layer structure of the metal vapor deposition transfer sheet of Example 4 is adhesive layer / heat resistant layer / metal vapor deposited layer / release layer / base sheet / heat resistant slipping layer.

(Example 5)
In the metal deposition transfer sheet for molding process produced in Example 4 above, the coating liquid for the release layer is changed to one having the following composition so that the coating amount becomes 0.4 g / m ^{2 in} terms of solid content. The release layer was formed by coating and drying. Otherwise, in the same manner as in Example 4, a metal vapor-deposited transfer sheet of Example 5 was produced.

<Coating liquid for release layer>
・ Acrylic resin (Dianar BR83, manufactured by Mitsubishi Rayon Co., Ltd.) 50.00 parts ・ Vinyl chloride-vinyl acetate copolymer resin copolymerized with dicarboxylic acid 50.00 parts (VMCA, vinyl chloride / vinyl acetate / maleic) Acid = 81/17/2, manufactured by Dow Chemical)
・ Methyl ethyl ketone 100.00 parts ・ Toluene 100.00 parts

(Example 6)
In the metal deposition transfer sheet for molding process produced in Example 4 above, the coating liquid for the release layer is changed to one having the following composition so that the coating amount becomes 0.4 g / m ^{2 in} terms of solid content. The release layer was formed by coating and drying. Otherwise, in the same manner as in Example 4, a metal vapor-deposited transfer sheet of Example 6 was produced.

<Coating liquid for release layer>
・ Acrylic resin (Dianar BR83, manufactured by Mitsubishi Rayon Co., Ltd.) 30.00 parts ・ Vinyl chloride-vinyl acetate copolymer resin copolymerized with dicarboxylic acid 20.00 parts (Solvine M5, vinyl chloride / vinyl acetate / Dicarboxylic acid = 85/14/1, manufactured by Nissin Chemical Industry Co., Ltd.)
・ Methyl ethyl ketone 100.00 parts ・ Toluene 100.00 parts

(Example 7)
In the metal deposition transfer sheet for molding process produced in Example 4 above, the coating liquid for the release layer is changed to one having the following composition so that the coating amount becomes 0.4 g / m ^{2 in} terms of solid content. The release layer was formed by coating and drying. Otherwise, a metal vapor-deposited transfer sheet of Example 7 was produced in the same manner as Example 4.

<Coating liquid for release layer>
・ Acrylic resin (Dianar BR83, manufactured by Mitsubishi Rayon Co., Ltd.) 50.00 parts ・ Vinyl chloride-vinyl acetate copolymer resin 50.00 parts (Solvine CL, vinyl chloride / vinyl acetate = 86/14, Nissin Chemical) Manufactured by Kogyo Co., Ltd.)
・ Methyl ethyl ketone 100.00 parts ・ Toluene 100.00 parts

(Example 8)
In the metal deposition transfer sheet for molding process produced in Example 4 above, the coating liquid for the release layer is changed to one having the following composition so that the coating amount becomes 0.4 g / m ^{2 in} terms of solid content. The release layer was formed by coating and drying. Otherwise, in the same manner as in Example 4, a metal vapor-deposited transfer sheet of Example 8 was produced.

<Coating liquid for release layer>
-Acrylic resin (Dianar BR83, manufactured by Mitsubishi Rayon Co., Ltd.) 80.00 parts-Vinyl chloride-vinyl acetate copolymer resin copolymerized with dicarboxylic acid 20.00 parts (Solvine M5, vinyl chloride / vinyl acetate / Dicarboxylic acid = 85/14/1, manufactured by Nissin Chemical Industry Co., Ltd.)
・ Methyl ethyl ketone 100.00 parts ・ Toluene 100.00 parts

Example 9
In the metal-deposited transfer sheet for molding process produced in Example 1 above, under the condition that a heat-resistant layer between the release layer and the metal vapor-deposited layer is not provided, and between the release layer and the metal vapor-deposited layer, the following Using the coating solution for the adhesion layer having the composition, the adhesion layer was formed by coating and drying so that the coating amount was 0.5 g / m ^{2 in} terms of solid content, and metal deposition for molding processing of Example 9 was performed. A transfer sheet was prepared. The layer configuration of the metal vapor-deposited transfer sheet of Example 9 is adhesive layer / heat-resistant layer / metal vapor-deposited layer / adhesion layer / release layer / base sheet / heat-resistant slip layer.

<Coating liquid for adhesion layer>
-Vinyl chloride-vinyl acetate copolymer resin 100.00 parts (Solvine CL, vinyl chloride / vinyl acetate = 86/14, manufactured by Nissin Chemical Industry Co., Ltd.)
・ Methyl ethyl ketone 100.00 parts ・ Toluene 100.00 parts

(Example 10)
In the metal deposition transfer sheet for molding process prepared in Example 9 above, the adhesive layer coating liquid used in Example 9 was applied so that the coating amount was 0.6 g / m ^{2 in} terms of solid content. Dried to form an adhesion layer. Otherwise, in the same manner as in Example 9, a metal vapor-deposited transfer sheet of Example 10 was produced.

(Example 11)
In the metal deposition transfer sheet for molding process produced in Example 9 above, the adhesive layer coating liquid used in Example 9 was applied so that the coating amount was 0.1 g / m ^{2 in} terms of solid content. Dried to form an adhesion layer. Otherwise, in the same manner as in Example 9, a metal vapor-deposited transfer sheet of Example 11 was produced.

(Example 12)
In the metal deposition transfer sheet for molding process prepared in Example 9 above, the adhesive layer coating liquid used in Example 9 was applied so that the coating amount was 0.05 g / m ^{2 in} terms of solid content. Dried to form an adhesion layer. Otherwise, in the same manner as in Example 9, a metal vapor-deposited transfer sheet of Example 12 was produced.

(Comparative Example 1)
A heat-resistant slipping layer having a coating amount of 0.3 g / m ^{2 in} terms of solid content was formed on one surface of a base sheet of a polyethylene terephthalate film having a thickness of 6 μm in the same manner as in Example 1. Using the release layer coating liquid used in Example 1 on the side opposite to the surface on which the heat-resistant slip layer of the base material sheet is provided, the coating amount is 0.4 g / m ^{2 in} terms of solid content. And dried to form a release layer. On the release layer, a metal vapor deposition layer having a thickness of 300 mm was formed by vacuum deposition of aluminum. On the metal vapor-deposited layer, using the adhesive layer coating solution used in Example 1, the adhesive layer is formed by applying and drying so that the coating amount is 0.42 g / m ^{2 in} terms of solid content. Thus, a metal vapor-deposited transfer sheet of Comparative Example 1 was produced. In addition, the layer structure of the metal vapor deposition transfer sheet of Comparative Example 1 is adhesive layer / metal vapor deposition layer / release layer / base sheet / heat resistant slipping layer.

(Comparative Example 2)
In the metal-deposited transfer sheet for molding process produced in Example 1 above, the coating amount of the heat-resistant layer between the release layer and the metal-deposited layer was changed from 1.0 g / m ² to 1.3 g / m ² . did. Further, a metal vapor deposition transfer sheet of Comparative Example 2 was produced in the same manner as in Example 1 except that the heat resistant layer between the metal vapor deposition layer and the adhesive layer was not provided.

(Comparative Example 3)
In the metal deposition transfer sheet for molding process produced in Example 4 above, the coating liquid for the release layer is changed to one having the following composition so that the coating amount becomes 0.4 g / m ^{2 in} terms of solid content. The release layer was formed by coating and drying. Others were carried out similarly to Example 4, and produced the metal vapor deposition transfer sheet of the comparative example 3. FIG.

<Coating liquid for release layer>
・ Acrylic resin (Dianar BR83, manufactured by Mitsubishi Rayon Co., Ltd.) 100.00 parts ・ Methyl ethyl ketone 100.00 parts ・ Toluene 100.00 parts

(Comparative Example 4)
In the metal deposition transfer sheet for molding process produced in Example 4 above, the coating liquid for the release layer is changed to one having the following composition so that the coating amount becomes 0.4 g / m ^{2 in} terms of solid content. The release layer was formed by coating and drying. Others were carried out similarly to Example 4, and produced the metal vapor deposition transfer sheet of the comparative example 4.

<Coating liquid for release layer>
-Vinyl chloride-vinyl acetate copolymer resin 100.00 parts (Solvine CL, vinyl chloride / vinyl acetate = 86/14, manufactured by Nissin Chemical Industry Co., Ltd.)
・ Methyl ethyl ketone 100.00 parts ・ Toluene 100.00 parts

(Transfer foil)
On one surface of a 6 μm thick polyethylene terephthalate film base sheet, an epoxy-melamine resin is provided in a dry state with a coating amount of 0.5 g / m ² to form a release layer. A hard coat layer is applied at a coating amount of 5 g / m ² with an ultraviolet curable resin of urethane acrylate, and an anchor layer is applied with an acrylic resin on the hard coat layer at a coating amount of 0.5 g / m ² . Further, on the anchor layer, an adhesive layer was provided at a coating amount of 1 g / m ² with a vinyl chloride-vinyl acetate copolymer resin to prepare a transfer foil. However, on the adhesive layer of the transfer foil, a thermal head is used by using a plurality of monocolor thermal transfer sheets in which a yellow, magenta, cyan, and black heat-melt transferable color material layer is provided as a single layer on a base sheet. The logo mark pattern is formed by heat transfer by heating.

The metal deposition transfer sheet for molding processing of each of the above examples and comparative examples was evaluated for printing suitability, molding processing suitability, and adhesion. The method is as follows.
(Printing suitability)
Printing speed: 1ms / Line (42mm / sec)
Thermal head: KCE-162-24PAG6 (manufactured by Kyocera, average resistance 3606Ω)
Head pressure: 4-10kg
Resolution: 600 dpi
Applied energy: 0.07 mJ / dot
For the transfer foil under the following conditions, as shown in 1) and 2) of FIG. 3, there are problems such as sticking between the metal vapor-deposited transfer sheet and the transfer foil by printing with a solid pattern according to the above printing conditions. I checked if I could print without any problems. Also, at that time, i) the vapor deposition layer is normally transferred to the transfer foil, or ii) the layer is peeled off from the transfer foil, and there is no problem that is taken on the metal vapor deposition transfer sheet side (that is, the foil has a good texture) I investigated.

The criteria for the evaluation of the print suitability are as follows.
○: There is no problem such as sticking, transfer can be performed well, and foil holding is also good.
(Triangle | delta): The foil holding | maintenance is bad or a part in which a part of vapor deposition layer 13 is not transcribe | transferred to the transfer foil 7 arises, and transferability is a little inferior.
X: Sticking occurs and transfer cannot be performed, or most part of the vapor deposition layer 13 is not transferred to the transfer foil 7, and transfer is poor.

(Molding suitability)
As shown in FIG. 3, the metal thin film transfer foil having the vapor deposition layer prepared in the above-described examination of printing suitability is inserted into an injection mold, and further ABS (acrylonitrile butadiene styrene copolymer resin) is melted. Resin was injected and molded. However, the metal thin film transfer foil is inserted into an injection mold so that the surface of the vapor deposition layer is on the molding resin side (gate side). After the molding process, after cooling, the mold was opened, the molded product was taken out of the mold, the base sheet of the metal thin film transfer foil was peeled off from the molded product, removed, and the deposited layer was transferred to the surface A molded product was obtained. The surface appearance of the obtained molded product was visually observed and evaluated. In addition, since a high temperature resin is poured into the mold at the time of molding, the metal vapor deposition layer flows (deforms) due to the pressure and heat of the molten resin or the like, and there is a phenomenon that the appearance of the surface is likely to be abnormal.
The evaluation criteria are as follows.
○: The metal vapor deposition layer does not flow, there is no problem in appearance, and it is good.
X: The metal vapor deposition layer flows, the abnormality which the resin can be seen on the surface occurs, and it is defective.

(Adhesion)
When examining the above-mentioned suitability for molding process, the cellophane tape was applied to the surface of the molded product having the surface decoration, indicating the adhesion between the layer transferred to the surface of the molded product having the surface decoration and the molded product. Then, the cellophane tape was peeled 180 ° immediately after being rubbed once and adhered, and it was visually observed whether or not a layer was taken on the tape side to check the adhesion.
The evaluation criteria are as follows.
◯: There is nothing taken on the tape side from the layer transferred to the surface of the molded product, and the adhesiveness is high and good.
Δ: Some are removed from the layer transferred to the surface of the molded product to the tape side. Adhesion is slightly inferior.
X: From the layer transferred to the surface of the molded product, a large amount is taken on the tape side, and there is a problem in adhesion.

Table 1 shows the evaluation results of the print suitability, molding process suitability and adhesion.

  The metal vapor-deposited transfer sheets of Examples 1 to 8 all have good printability, and the metal vapor-deposited transfer sheet is used to form another transfer foil (on the base sheet, a release layer, a hard coat layer, an anchor. Transfer foil in which layers and adhesive layers are laminated in this order). However, on the transfer layer of the transfer foil, a thermal transfer sheet in which a heat-melt transferable color material layer is provided on a base sheet is used, and an arbitrary pattern is provided. Then, the vapor deposition layer 13 is thermally transferred with a solid pattern to the transfer foil 7 formed by thermal transfer to prepare a metal thin film transfer foil 7 ', and the metal thin film transfer foil is inserted into an injection mold. Further, the molten resin was injected to perform molding processing. As a result, at the same time as the molding process, it was possible to add a high-quality decoration to the surface of the molded product without any abnormality and high design. Further, the adhesion between the layer transferred to the surface of the molded product having the surface decoration and the molded product was at a level of no problem for practical use. On the other hand, the metal vapor deposition transfer sheet of Comparative Example 1 has no problem in printability, but the molded product obtained by the above molding process has a circular shape with a metal vapor deposition layer cracked near the gate at the time of molding. There was no metal vapor deposition layer, and a defect in which the molded resin was exposed occurred, resulting in abnormal appearance. Moreover, in the metal vapor deposition transfer sheet of Comparative Example 2, the metal vapor deposition transfer sheet and the transfer foil adhered to each other due to printability, and evaluation of moldability was not possible. The metal vapor-deposited transfer sheet of Comparative Example 3 has no problem in printability and moldability, but has a surface decoration because the release layer does not contain a vinyl chloride-vinyl acetate copolymer and an acrylic resin. The adhesion between the layer transferred to the surface of the molded product and the molded product was low. Comparative Example 4 has high adhesion to a molded product, but transfer failure occurs.

DESCRIPTION OF SYMBOLS 1 Metal vapor deposition transfer sheet for shaping | molding process 2 Base material sheet 3 Heat resistant slipping layer 4 Peeling layer 5 Metal vapor deposition layer 6 Heat resistant layer 7 Transfer foil 7 'Metal thin film transfer foil 8 Base material sheet 9 Release layer 10 Hard coat layer 11 Anchor layer 12 Adhesive layer 13 (Partial) Vapor deposition layer 14 Transfer layer 15 Picture layer 16 Thermal head 17 Mold 18 Gate 19 Cavity surface 20 Molded product 21 Molten resin 22 Adhesive layer

Claims (7)

  A metal-deposited transfer sheet for molding, wherein at least a release layer, a metal-deposited layer, and a heat-resistant layer are laminated in this order on the opposite side of a base sheet having a heat-resistant slip layer on one side.   2. A heat-resistant layer is provided between the laminated release layer and the metal vapor-deposited layer on the opposite surface of the base sheet having the heat-resistant slip layer on the one surface. Metal-deposition transfer sheet for molding process described in 1.   2. An adhesive layer is further provided on the uppermost heat-resistant layer laminated on the opposite surface of the base sheet having the heat-resistant slip layer on the one surface. 2. A metal-deposited transfer sheet for molding as described in 2.   The metal-deposited transfer sheet for molding process according to any one of claims 1 to 3, wherein the release layer contains a vinyl chloride-vinyl acetate copolymer and an acrylic resin.   The release layer contains a vinyl chloride-vinyl acetate copolymer copolymerized with a dicarboxylic acid in a mass ratio of 30% to 60% with respect to the resin of the entire release layer. Item 5. A metal deposition transfer sheet for molding processing according to any one of Items 1 to 4.   The molding process according to claim 1, wherein an adhesion layer containing a vinyl chloride-vinyl acetate copolymer is provided between the release layer and the metal vapor deposition layer. Metal vapor deposition transfer sheet. A transfer foil obtained by laminating at least a release layer, a hard coat layer, and an adhesive layer in this order on a base sheet using the metal-deposited transfer sheet for molding process according to any one of claims 1 to 6. In addition, the vapor-deposited layer is thermally transferred in an arbitrary pattern. However, the transfer foil is preliminarily formed by thermally transferring an arbitrary pattern using a thermal transfer sheet provided with a heat-melt transferable color material layer on a base sheet. In addition, a metal thin film transfer foil on which the vapor-deposited layer is thermally transferred is prepared on at least a part of the pattern and on the transfer layer of the transfer foil, and the metal thin film transfer foil is used as an injection mold. A decoration method comprising inserting and injecting a molten resin to perform molding, and simultaneously adding decoration to the surface of the molded product.

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