JP5402152B2 - Film for simultaneous injection molding - Google Patents

Description

  The present invention relates to a film for simultaneous injection molding.

Conventionally, an injection molding simultaneous decorating method is used for decorating a resin molded body having a complicated surface shape such as a three-dimensional curved surface. In the injection molding simultaneous decoration method, the decorative sheet inserted into the mold at the time of injection molding is integrated with the molten injection resin injected and injected into the cavity to decorate the surface of the resin molded body It is a method of applying.
In the injection molding simultaneous decorating method, a decorative sheet formed by laminating a base material, a pattern printing layer, and an adhesive layer is generally used (for example, Patent Document 1). Heat the substrate side of the decorative sheet for decorating into the mold with a hot platen from the substrate side, and mold the decorative sheet so that it conforms to the shape inside the mold to adhere to the inner surface of the mold After the mold is clamped, the molten injection resin is injected into the cavity to integrate the decorative sheet and the injection resin, and then the decorative molded product is cooled and removed from the mold to obtain a decorative molded product be able to.

  By the way, the temperature of the injection resin used in this injection molding simultaneous decorating method is about 180 to 300 ° C., and a part of the print layer or film layer of the decorative sheet is melted due to this heat. A phenomenon called gate flow sometimes occurred. And the phenomenon of this gate flow tends to be noticeable in the vicinity of the injection point of the injection resin, and the thickness of the film of the substrate is locally reduced by this gate flow. There has been a problem that a difference in gloss occurs between the location and the surrounding location. In particular, this tendency is remarkable when a metallic or matte design is applied to a decorative molded product.

As a method of reducing the gloss difference due to the gate flow, it is possible to reduce the thickness of the base film and release the heat of the injection resin to the mold. However, if the base film is made thinner, the decorative sheet will be wrinkled or torn due to the flow of the injection resin in the cavity and the temperature and impact of the injection. It is not possible. As another method, the temperature of the mold is lowered to release the heat of the injection resin. However, when the temperature of the mold is lowered, the flow of the injection resin in the cavity is lowered, and it becomes difficult to manufacture a stable decorative molded product.
Thus, it is difficult to stably produce a decorative molded product while reducing the gloss difference due to the gate flow, and the development of a decorative sheet that can realize this is desired.

JP 2002-264169 A

  An object of the present invention is to provide an injection-molded simultaneous decorating film capable of producing a good decorative molded product while reducing the occurrence of a gloss difference due to a gate flow in a decorative molded product, and a decorative molding using the same Is to provide goods.

As a result of intensive studies to achieve the above object, the present inventor has found that the object can be achieved by making the base material into two layers and adding a matting agent to one layer. . The present invention has been completed based on such findings.
That is, the present invention
(1) A pattern layer and an adhesive layer are sequentially laminated on the surface of the second substrate layer of the substrate layer composed of the first substrate layer and the second substrate layer, and the first substrate layer Includes a matting agent, and the second base material layer does not contain a matting agent.
(2) The sheet for simultaneous injection molding according to (1), wherein the thickness of the first base material layer is 50% or less of the thickness of the second base material layer,
(3) The sheet for simultaneous injection-molding decoration according to (1) or (2), wherein the resin forming the first base material layer and the second base material layer is an acrylic resin,
(4) The sheet for simultaneous injection molding decoration according to any one of the above (1) to (3), wherein the pattern layer is metallic.
(5) The sheet for simultaneous injection molding decoration according to (4) above, wherein the pattern layer contains at least one selected from metallic pigments and pearl pigments, and (6) any one of (1) to (5) above Decorative molded product using the sheet for simultaneous injection molding decoration described in
Is to provide.

  ADVANTAGE OF THE INVENTION According to this invention, in the decorative molded product, the film for injection-molding simultaneous decorating which can manufacture a favorable decorative molded product, reducing the generation | occurrence | production of the glossiness difference by a gate flow, and decorative molding using the same Goods can be obtained.

It is a schematic diagram which shows the one aspect | mode of the cross section of the decorating sheet of this invention.

The present invention will be described below with reference to the drawings. Drawing 1 is a mimetic diagram showing the section of the decorating sheet of the present invention. As shown in FIG. 1, the decorative sheet 1 of the present invention includes a first base material layer 21 composed of a first base material layer 21 containing a matting agent and a second base material layer 22 not containing a matting agent. The pattern layer 3 and the adhesive layer 4 are sequentially laminated on the surface of the two base material layers 22.
The mechanism for reducing the occurrence of gloss difference due to the gate flow in the present invention has not been fully elucidated, but is presumed as follows.
The heat and impact of the injection resin on the base material containing a matting agent that has been used to give a sense of quality to decorative molded products has had a significant effect on the occurrence of gloss differences. By having a two-layer configuration of a base material layer containing a matting agent and a second base material layer not containing a matting agent, and providing a second base material not containing a matting agent closer to the injection side of the injection resin It is presumed that a uniform design can be obtained by reducing the heat and impact of the injection resin, reducing the occurrence of gloss differences.

[Base material layer 2]
The base material layer 2 of the decorative sheet of the present invention includes a first base material layer 21 and a second base material layer 22, the first base material layer 21 includes a matting agent, It is characterized by not containing a matting agent. Here, “not including the matting agent in the second base material layer 22” means substantially not including the matting agent. In other words, in the present invention, the second base material layer 22 that does not include a matting agent is a range that does not impair the effect of the present invention to reduce the occurrence of a gloss difference in addition to an embodiment that does not include any matting agent. , It can have an embodiment containing a matting agent. For example, if the content of the matting agent in the second base material layer 22 is less than 30% with respect to the content of the matting agent contained in the first base material layer 21, the occurrence of a gloss difference is reduced. There is no.

  The base material layer 2 is not particularly limited as long as it has good followability to the mold surface during injection molding, but the first base material layer 21 is a base made of a resin composition containing a resin and a matting agent. The second base material layer 22 is preferably made of a base material made of a resin composition that contains a resin and does not contain a matting agent. Examples of the resin used for the first base material layer 21 and the second base material layer 22 include polyolefin resins such as polyethylene, polypropylene, ethylene-propylene copolymer, olefin thermoplastic elastomer, polyethylene terephthalate, polybutylene terephthalate, and the like. Polyester resins, acrylic resins, polycarbonate resins and the like are preferable. Among these, acrylic resins are preferable from the viewpoint of followability to the mold surface and transparency.

  Acrylic resins include poly (meth) methyl acrylate, poly (meth) ethyl acrylate, poly (meth) acrylate propyl, poly (meth) acrylate butyl, methyl (meth) acrylate- (meth) acrylic acid (Meth) such as butyl copolymer, ethyl (meth) acrylate-butyl (meth) acrylate copolymer, ethylene- (meth) methyl acrylate copolymer, styrene-methyl (meth) acrylate copolymer A resin composed of a homopolymer or a copolymer containing an acrylic ester is preferably mentioned, and these are used alone or in combination of two or more. Of these, polymethyl methacrylate is preferred. The resins used for the first base material layer 21 and the second base material layer 22 may be the same or different, but are preferably the same from the viewpoint of design.

《Matteing agent》
Matting agents used for the first substrate layer 21 include inorganic particles such as calcium carbonate, magnesium carbonate, calcium sulfate, barium sulfate, lithium phosphate, magnesium phosphate, calcium phosphate, aluminum oxide, silicon oxide, and kaolin, acrylic Preferable examples include organic particles made of a resin and the like, and internally precipitated particles. Among these, silicon oxide and acrylic resin beads, particularly crosslinked acrylic resin beads are preferable.
The average particle diameter of the matting agent is preferably from 0.01 to 5.0 μm, more preferably from 0.05 to 3.0 μm, from the viewpoint of obtaining a uniform design feeling with no gloss difference. Moreover, content of the matting agent in the resin composition which forms the 1st base material layer 21 is 0.01-5 with respect to 100 mass parts of resin from a viewpoint of obtaining the uniform design feeling without a gloss difference. 0.0 part by mass is preferable, and 0.1 to 1.0 part by mass is more preferable.

《Acrylic rubber》
The acrylic rubber used for the second base material layer 22 is a polymer having (meth) acrylic acid ester as a structural unit, and the structural unit is preferably 60% by mass or more, more preferably 70% by mass or more, and still more preferably. Contains 80% by mass or more. Examples of (meth) acrylic acid esters include (meth) acrylic acid alkyl esters and (meth) acrylic acid alkoxyalkyl esters.

  The (meth) acrylic acid alkyl ester is preferably an ester of an alkanol having 1 to 8 carbon atoms and (meth) acrylic acid, methyl (meth) acrylate, ethyl (meth) acrylate, n- (meth) acrylic acid. Propyl, n-butyl (meth) acrylate, isopropyl (meth) acrylate, isobutyl (meth) acrylate, n-hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, cyclohexyl (meth) acrylate, etc. Is mentioned. Of these, ethyl (meth) acrylate and n-butyl (meth) acrylate are preferred.

  The (meth) acrylic acid alkoxyalkyl ester is preferably an ester of an alkoxyalkanol having 2 to 8 carbon atoms and (meth) acrylic acid, (meth) acrylic acid methoxymethyl, (meth) acrylic acid ethoxymethyl, (meth) 2-ethoxyethyl acrylate, 2-butoxyethyl (meth) acrylate, 2-methoxyethyl (meth) acrylate, 2-propoxyethyl (meth) acrylate, 3-methoxypropyl (meth) acrylate, (meth) Examples include 4-methoxybutyl acrylate. Among these, 2-ethoxyethyl (meth) acrylate and 2-methoxyethyl (meth) acrylate are preferable.

  The acrylic rubber is preferably a copolymer containing a structural unit having a crosslinking point. Since a rubber composition using such a copolymer as an acrylic rubber can be effectively crosslinked during molding, an elastic crosslinked product can be obtained. Examples of the structural unit having a crosslinking point include those having a carboxyl group, a halogen atom, an epoxy group, or a hydroxyl group.

  In the resin composition forming the base material layer 2, the content of the acrylic rubber is preferably 5 to 60 parts by mass, more preferably 10 to 40 parts by mass, and 10 to 30 parts by mass with respect to 100 parts by mass of the resin. Further preferred. If the content of the acrylic rubber is within the above range, it is possible to suppress a decrease in the surface hardness and solvent resistance of the base material layer.

  Moreover, the resin composition which forms the 1st base material layer 21 and the 2nd base material layer 22 is various stabilizer, lubricant, antioxidant, antistatic agent, antifoamer, and fluorescent whitening agent as needed. Etc. can also be blended.

  The thickness of the 1st base material layer 21 is 1-50 micrometers normally, 5-25 micrometers is preferable and 5-15 micrometers is more preferable. The thickness of the 2nd base material layer 22 is 10-150 micrometers normally, 50-125 micrometers is preferable and 60-110 micrometers is more preferable. The thickness of the first base material layer 21 is preferably 50% or less, more preferably 40% or less, and further preferably 15% or less with respect to the thickness of the second base material layer 22. If the thickness of the first base material layer 21 and the second base material layer 22 is within the above range, the occurrence of the gloss difference due to the gate flow is reduced, and the decorative sheet is not wrinkled or torn during the injection of the resin. Can be suppressed.

[Picture layer 3]
The pattern layer 3 provided on the decorative sheet of the present invention is a layer that expresses a pattern, characters, a pattern-like pattern, or a solid color that is uniformly colored over the entire surface. Although the pattern of the pattern layer 3 is arbitrary, for example, in addition to the metallic tone, a pattern made of wood, stone, cloth, sand, geometric pattern, letters, and the like can be mentioned. Moreover, the pattern layer 3 can provide the pattern pattern layer and solid color layer which represent the said pattern individually or in combination. The solid colored layer is usually used as a hiding layer, a colored layer, a colored hiding layer, or the like.
The pattern layer 3 is usually a known printing method such as gravure printing, offset printing, silk screen printing, transfer printing from a transfer sheet, sublimation transfer printing, and ink jet printing on the second base material layer 22 described above. It is formed by. The thickness of the pattern layer 3 is preferably 5 to 40 μm and more preferably 20 to 30 μm from the viewpoint of design.

  As the binder resin of the printing ink used for forming the pattern layer 3, polyester resins, polyurethane resins, acrylic resins, vinyl acetate resins, vinyl chloride-vinyl acetate copolymer resins, cellulose resins, and the like are preferable. The main component is preferably an acrylic resin alone or a mixture of an acrylic resin and a vinyl chloride-vinyl acetate copolymer resin. Among these, when an acrylic resin, a vinyl chloride-vinyl acetate copolymer resin or another acrylic resin is mixed, the printability and the moldability are improved, which is preferable.

  Examples of the colorant used in the pattern layer 3 according to the present invention include aluminum, chromium, nickel, tin, titanium, iron phosphide, copper, gold, silver, brass and other metals, alloys, or scale-like foil powders of metal compounds. It consists of foil powder such as metallic pigment, mica-like iron oxide, titanium dioxide-coated mica, titanium dioxide-coated bismuth oxychloride, bismuth oxychloride, titanium dioxide-coated talc, fish scale foil, colored titanium dioxide-coated mica, and basic lead carbonate. Pearlescent pigments, fluorescent pigments such as strontium aluminate, calcium aluminate, barium aluminate, zinc sulfide, calcium sulfide, white inorganic pigments such as titanium dioxide, zinc white, antimony trioxide, zinc white, petal, Inorganic pigments such as vermilion, ultramarine, cobalt blue, titanium yellow, yellow lead, carbon black, isoindolinone Be low, Hansa Yellow A, quinacridone red, permanent red 4R, phthalocyanine blue, be mixed Indanthrene Blue RS, (including dyes) organic pigments such as aniline black one or more.

  In addition to the above components, the printing ink used for forming the pattern layer 3 is appropriately added with an anti-settling agent, a curing catalyst, an ultraviolet absorber, an antioxidant, a leveling agent, a thickener, an antifoaming agent, a lubricant, and the like. be able to. The printing ink is provided in a form in which the above components are usually dissolved or dispersed in a solvent. Any solvent can be used as long as it dissolves or disperses the binder resin, and an organic solvent and / or water can be used. Examples of the organic solvent include hydrocarbons such as toluene and xylene, ketones such as acetone and methyl ethyl ketone, esters such as ethyl acetate, cellosolve acetate, and butyl cellosolve acetate, and alcohols.

  In the present invention, when a metallic tone is adopted as a pattern and at least one selected from glittering pigments such as metallic pigments and pearlescent (pearl) pigments is used as a colorant, a solid colored layer using these pigments in particular. In this case, the effect of reducing the occurrence of gloss difference due to the gate flow of the present invention can be effectively obtained.

  In the present invention, as a method for forming a metallic-tone pattern, a method of forming using an ink composition containing a bright pigment such as a metallic pigment or a pearlescent (pearl) pigment as the above-mentioned colorant, aluminum, chromium, etc. Preferred examples include a method of forming a metal thin film layer formed by a method such as vacuum deposition or sputtering using a metal such as gold, silver or copper. The metal thin film layer may be provided on the entire surface or may be partially provided in a pattern. The pattern layer 3 may be a combination of a pattern using the colorant and a metal thin film layer, or may be formed only from a pattern using the colorant, or a colorant may be used. It may be formed only from a metal thin film layer without adopting a conventional pattern.

[Adhesive layer 4]
The adhesive layer 4 is formed in order to adhere the decorative sheet of the present invention to a decorative molded product with good adhesiveness. Examples of the resin used for the adhesive layer 4 include acrylic resins, vinyl chloride resins, vinyl acetate resins, vinyl chloride-vinyl acetate copolymer resins, styrene-acryl copolymer resins, polyester resins, A resin such as a polyamide-based resin can be given. The resin can be formed by applying one or two or more of these resins into a form that can be applied such as a solution or an emulsion, appropriately selecting from known application methods, applying, and drying.
The thickness of the adhesive layer 4 is preferably about 0.1 to 5 μm.

  The adhesive layer 4 includes the resin as described above, an organic ultraviolet absorber such as a benzophenone compound, a benzotriazole compound, an oxalic acid anilide compound, a cyanoacrylate compound, a salicylate compound, zinc, Additives of fine particles having an inorganic ultraviolet absorbing ability such as oxides of titanium, cerium, tin, iron and the like can be used. Further, as other additives, coloring pigments, white pigments, extender pigments, fillers, antistatic agents, antioxidants, fluorescent whitening agents, and the like can be used as necessary.

[Method for producing decorative sheet]
The decorative sheet of the present invention can be produced, for example, as follows.
First, the base material layer 2 is a sheet made of a resin composition that forms a first base material layer 21 containing a resin, a matting agent, and various additives, and a second base material layer 22 containing a resin and various additives. And a sheet made of the resin composition that forms the film is adhered and pressure-bonded by a method such as extrusion lamination, dry lamination, wet lamination, or thermal lamination. Next, the pattern layer 3 and the adhesive 4 may be laminated on the surface of the second base material layer 22 by known printing or coating means such as gravure printing or roll coating. Further, when the pattern layer 3 is a plurality of layers, for example, when the pattern layer 3 is a combination of the pattern pattern layer and the solid colored layer as described above, one layer is laminated and then dried, and then the next layer May be laminated.

[Method of manufacturing decorative molded product]
The decorative sheet of the present invention obtained as described above is suitably used for simultaneous injection molding. In the injection molding simultaneous decoration, first, the first base material layer of the decorative sheet for simultaneous injection molding decoration is directed to the inside of the mold and heated from the first base material layer side by a hot platen. Pre-molding along the inner shape of the mold, tightly contacting the inner surface of the mold and clamping. The heating temperature at this time is preferably in the range of not less than the glass transition temperature of the resin forming the base material layer and less than the melting temperature (or melting point). Usually, it is more preferable to carry out at a temperature near the glass transition temperature. In addition, said glass transition temperature vicinity refers to the range about glass transition temperature +/- 5 degreeC.

  Next, an injection resin to be described later is melted and injected into the cavity to integrate the decorative sheet and the injection resin. When the injection resin is a thermoplastic resin, it is made into a fluid state by heating and melting, and when the injection resin is a thermosetting resin, the uncured liquid composition is injected in a fluid state at room temperature or appropriately heated. Cool and solidify. As a result, the decorative sheet is integrally attached to the formed resin molded body, and becomes a decorative molded product. The heating temperature of the injection resin depends on the injection resin, but is generally about 180 to 300 ° C.

  The decorative molded product thus obtained can be cooled and then taken out from the mold to obtain a decorative molded product.

<Injection resin>
The injection resin used for the decorative molded product is not particularly limited as long as it is a thermoplastic resin that can be injection-molded or a thermosetting resin (including a two-component curable resin), and various resins are used. Can do. Examples of such thermoplastic resin materials include polyvinyl polymers such as polyvinyl chloride and polyvinylidene chloride, polystyrene resins, acrylonitrile-styrene copolymer resins, ABS resins (acrylonitrile-butadiene-styrene copolymers). Resin), styrene resins such as polymethyl (meth) acrylate, polyethyl (meth) acrylate, polyacrylonitrile and other acrylic resins, polyethylene resins, polypropylene resins, polybutene polyolefin resins, polyethylene terephthalate, ethylene glycol-terephthalic acid -Polyester resins such as isophthalic acid copolymer resin, polybutylene terephthalate, polycarbonate resin and the like. Examples of the thermosetting resin include a two-component reaction curable polyurethane resin and an epoxy resin. These resins may be used alone or in combination of two or more.

These resins include various additives as required, such as antioxidants, heat stabilizers, ultraviolet absorbers, light stabilizers, flame retardants, plasticizers, silica, alumina, calcium carbonate, aluminum hydroxide, etc. Inorganic powders, wood powders, fillers such as glass fibers, lubricants, mold release agents, antistatic agents, colorants and the like can be added. Note that as the injection resin, a resin colored by adding a colorant may be used as appropriate according to the application. As the colorant, a known colorant similar to that which can be used for the base film described above can be used.
There is no restriction | limiting in particular about the thickness of the injection resin molding which comprises a decorative molded product, Although it selects according to the use of the said decorative molded product, Usually, 1-5 mm, Preferably it is 2-3 mm.

EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not limited at all by these examples.
(Evaluation method)
The decorative molded product obtained in each example was evaluated by the following methods.
(1) Evaluation of gloss difference The decorative molded products obtained in Examples and Comparative Examples were visually observed and evaluated according to the following criteria.
○: A gloss difference between the back surface (surface of the decorative molded product) corresponding to the gate portion for injecting the resin and the surrounding area could not be found, and the design was uniform.
Δ: Although there is a slight difference in gloss between the back surface (surface of the decorative molded product) corresponding to the gate portion for injecting the resin and the surroundings, there is no practical problem.
X: It was not necessary to confirm the location of the back surface (the surface of the decorative molded product) corresponding to the gate portion for injecting the resin, and apparently a difference in gloss between the location and the surroundings occurred.
(2) Evaluation of design properties The decorative molded products obtained in Examples and Comparative Examples were visually observed and evaluated according to the following criteria.
○: There is no wrinkling or tearing of the decorative sheet.
Δ: There are some wrinkles on the decorative sheet, but there is no practical problem.
X: The wrinkle of a decoration sheet is remarkable or there is a tear.

Example 1
(1) Production of a decorative sheet As a first base material layer, an acrylic resin sheet containing a matting agent (thickness: 10 μm, matting agent content: 0.5 parts by mass with respect to 100 parts by mass of resin), As the second base material layer, an acrylic resin sheet containing no matting agent (thickness: 115 μm, acrylic rubber content: 20 parts by mass with respect to 100 parts by mass of resin) is prepared, and these sheets are subjected to extrusion lamination. The base material layer 2 was obtained by pressure bonding.
Subsequently, using an ink containing a polyurethane / acrylic polyol resin as a binder and a metal pigment (particle size: 5 to 25 μm) in a content ratio of 30 parts by mass with respect to 100 parts by mass of the resin solid content, a coating amount of 5 g / M ² to coat the entire surface uniformly by gravure printing to form a pattern layer 3, and then apply an acrylic resin coating solution at a thickness of 4 μm to form an adhesive layer 4, and a decorative sheet Obtained.

(2) Manufacture of a decorative molded product The decorative sheet obtained in (1) above is heated at a hot platen temperature of 150 ° C. so as to conform to the shape in the mold of injection molding, and on the inner surface of the mold. Adhered. The mold used was of a shape with a high degree of deep drawing, having a 80 mm square size, a 10 mm rise and a 3R tray shape. On the other hand, an ABS resin (manufactured by Nippon A & L Co., Ltd., trade name “Crustic MTH-2”) was used as an injection resin, and this was melted at 230 ° C. and then injected into the cavity. It cooled and took out from the metal mold | die, and the decorative molded product was obtained. Said evaluation was performed about the obtained decorative molded product. The evaluation results are shown in Table 1.

Example 2
In Example 1, as the first base material layer, an acrylic resin sheet containing a matting agent (thickness: 35 μm, matting agent content: 0.5 part by mass with respect to 100 parts by mass of resin), second group A decorative sheet as in Example 1 except that the material layer is an acrylic resin sheet (thickness: 80 μm, acrylic rubber content: 20 parts by mass relative to the resin composition) that does not contain a matting agent. And the decorative molded product was obtained. Said evaluation was performed about the obtained decorative molded product. The evaluation results are shown in Table 1.

Comparative Example 1
In Example 1, except that the base material layer was only an acrylic resin sheet (thickness: 120 μm, matting agent content: 0.5 part by mass with respect to 100 parts by mass of resin), the same as in Example 1 A decorative sheet and a decorative molded product were obtained. Said evaluation was performed about the obtained decorative molded product. The evaluation results are shown in Table 1.

  The decorative sheet of the present invention can produce a good decorative molded product while reducing the occurrence of a gloss difference due to the gate flow in the decorative molded product. Moreover, the obtained decorative molded product can be suitably used in various fields such as household appliances and automobile interior products.

1. Decorative sheet Base material layer 21. First base material layer 22. 2. Second base material layer Pattern layer 4. Adhesive layer

Claims (6)

A pattern layer and an adhesive layer are sequentially laminated on the surface of the second base material layer of the base material layer composed of the first base material layer and the second base material layer, and the first base material layer and the first base material layer The resin used for the two base layers is the same, the pattern layer is a metallic tone containing a glitter pigment, the first base layer contains a matting agent, and the second base layer is a matting agent A sheet for simultaneous decorating of injection molding, characterized in that it does not contain.   The sheet for simultaneous injection molding decoration according to claim 1, wherein the thickness of the first base material layer is 50% or less of the thickness of the second base material layer.   The injection molding simultaneous decorating sheet according to claim 1 or 2, wherein the resin forming the first base material layer and the second base material layer is an acrylic resin. Content of the matting agent contained in a 1st base material layer is 0.01-5.0 mass parts with respect to 100 mass parts of resin , The injection molding simultaneous decorating in any one of Claims 1-3 Sheet. The sheet for simultaneous injection molding decoration according to any one of claims 1 to 4, wherein the thickness of the first base material layer is 5 to 50 µm.   A decorative molded product using the sheet for simultaneous injection molding decoration according to any one of claims 1 to 5.

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