JP6891568B2 - Decorative molded products and manufacturing methods for decorative molded products - Google Patents

Description

The present invention relates to a decorative molded product and a method for producing a decorative molded product.

Conventionally, in the fields of household electric appliances, automobile interior parts, miscellaneous goods, etc., high functionality and design have been exhibited by decorating the surface of the object to be transferred with characters, patterns, and the like.

As a method of decorating the surface of the object to be transferred, there is a transfer method. The transfer method uses a transfer sheet in which a transfer layer composed of a release layer, a pattern layer, an adhesive layer, etc. is formed on a substrate, and is heated and pressed to bring the transfer layer into close contact with the object to be transferred, and then the substrate is attached. This is a method of peeling off and transferring only the transfer layer to the surface of the object to be transferred for decoration.

Further, depending on the application, excellent designability in which different textures such as glossiness and matteness are mixed on the surface of the object to be transferred may be required.
For example, Patent Document 1 describes a release layer containing a matting agent entirely on a substrate sheet, a mask layer partially containing an active energy ray-curable resin, and a release layer and a design layer as transfer layers. A partially matte transfer sheet is disclosed, characterized in that the above is formed.

Japanese Patent No. 5095598

However, in the partially matte transfer sheet of Patent Document 1, interference fringes may occur in the decorative molded product obtained by transferring the transfer layer to the surface of the object to be transferred. In particular, interference fringes in the non-matte region tended to be conspicuous.

Further, as a means for suppressing the interference fringes, a means for causing internal haze by containing particles in the transfer material and / or the transfer layer can be considered. However, when particles are contained in the transfer material and / or the transfer layer, there is a problem that the entire surface of the decorative molded product is whitened and the high-class feeling is impaired.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a decorative molded product in which interference fringes are suppressed and whitening is suppressed, and a method for producing the decorative molded product.

In order to solve the above problems, the present invention provides the following [1] to [2].
[1] A decorative molded product having a transfer layer on the transfer material, the transfer layer has one or more layers, and particles are placed at least a part of the interface between the transfer material and the transfer layer. The refractive index of the resin contained in the transfer layer in contact with the transfer material is n ₁ , the refractive index of the particles is n ₂ , and the refractive index of the resin contained in the transfer material is n ₃ . A decorative molded product that satisfies the conditions of (i) or (ii) below.
n ₁ <n ₂ <n ₃ (i)
n ₃ <n ₂ <n ₁ (ii)
[2] The step of transferring the transfer layer of the following transfer sheet A to the object to be transferred and the step of peeling off the release sheet of the following transfer sheet A are included, and the refractive index of the following binder resin is set to n ₁ ', and the following particles. the refractive index n ₂ in ', the refractive index of the resin contained in the transfer target n _3' was the following (i ') or (ii' satisfy the), method of manufacturing the decorative molded article.
n ₁ '<n ₂ '<n ₃ '(i')
n ₃ '<n ₂ '<n ₁ '(ii')
<Transfer sheet A>
A transfer sheet having a transfer layer on the release sheet, the transfer layer having one or more layers, and the layer farthest from the release sheet among the transfer layers containing a binder resin and particles. A.

According to the present invention, it is possible to provide a decorative molded product in which interference fringes and whitening are suppressed. Further, according to the present invention, it is possible to easily manufacture a decorative molded product in which interference fringes and whitening are suppressed.

It is sectional drawing which shows one Embodiment of the decorative molded article of this invention. It is sectional drawing which shows one Embodiment of the transfer sheet A used for manufacturing the decorative molded article of this invention.

[Decorative molded products]
The decorative molded product of the present invention is a decorative molded product having a transfer layer on the transferred object, the transfer layer has one or more layers, and the interface between the transferred object and the transfer layer. The refractive index of the resin contained in the transfer layer having particles at least partially and in contact with the transfer material is n ₁ , the refractive index of the particles is n ₂ , and the resin contained in the transfer material is the refractive index upon the n _3, are those satisfying the following (i) or (ii).
n ₁ <n ₂ <n ₃ (i)
n ₃ <n ₂ <n ₁ (ii)

Hereinafter, the "resin contained in the layer of the transfer layer in contact with the transfer material" may be referred to as "resin 1", and the "resin contained in the transfer material" may be referred to as "resin 3".
In addition, in this specification, "AA-BB" means "AA or more and BB or less". The same applies hereinafter.

FIG. 1 is a cross-sectional view showing an embodiment of the decorative molded article 100 of the present invention.
The decorative molded product 100 of FIG. 1 has a transfer layer 20 on the object to be transferred 10. Further, in the decorative molded product 100 of FIG. 1, the transfer layer 20 has three layers of a protective layer 21, an anchor layer 22, and an adhesive layer 23, and the interface between the transferred object 10 and the transfer layer 20. It has particles 24 in a part. Further, the transfer layer 20 of the decorative molded product 100 in FIG. 1 has a first region X having an uneven portion on a surface opposite to the transferred object 10 and a second region Y adjacent to the first region X. have.

<Condition (i), Condition (ii)>
In the decorative molded product of the present invention, the refractive index of the resin contained in the layer of the transfer layer in contact with the transfer material is n ₁ , and the refractive index of the particles located at least a part of the interface between the transfer material and the transfer layer. When n ₂ and the refractive index of the resin contained in the transferred product are n ₃ , the following conditions (i) or (ii) are satisfied.
n ₁ <n ₂ <n ₃ (i)
n ₃ <n ₂ <n ₁ (ii)

Conditions (i) and the condition (ii) has a refractive index n ₁ of the resin (Resin 1) contained in the layer in contact with the object to be transferred among the transfer layer, the refractive index of the resin contained in the transcript (Resin 3) n ₃ and is meant different things. As described above, when the refractive indexes of the resin 1 and the resin 3 are different, interference fringes usually occur in the decorative molded product.
However, the decorative molded product of the present invention is configured to have particles at least a part of the interface between the transfer material and the transfer layer, and the refractive index n _{2 of the} particles is more than n _{1 and} less than _{n 3.} Alternatively, _{by setting the number of particles to more than n 3} and less than n ₁ , internal haze caused by the difference in refractive index between the particles and the resin 1 and the resin 3 is generated, and it is possible to suppress interference fringes. It should be noted that the occurrence of the internal haze makes it possible to make defects in the decorative molded product less noticeable and improve the yield.
Further, the decorative molded article of the present invention, since the refractive index n ₂ of the particles present at the interface between the object to be transferred and the transfer layer is, n ₁ and less than n ₃ or n ₃ is less than ultra-n _1, the resin It is possible to suppress reflection caused by the difference in refractive index between 1 and 3 and suppress whitening due to reflection.
As described above, the decorative molded product of the present invention can suppress interference fringes and whitening by satisfying the conditions (i) and (ii).

Considering only the suppression of interference fringes by internal diffusion, it is effective to make the refractive index of the particles extremely low or to make the refractive index of the particles extremely high. Specifically, n ₁ , n ₂ and n ₃ are referred to as "n ₁ <n ₃ << n ₂ ", "n ₃ <n ₁ << n ₂ ", "n ₁ > n ₃ >> n ₂ ". , "N ₃ > n ₁ >> n ₂ ".
However, by means of extremely lowering or increasing the refractive index of the particles, the internal haze becomes too strong and interference fringes can be suppressed, while the entire surface of the decorative molded product is whitened, and the sense of quality is impaired. It ends up.

When satisfying the condition _{(i), n 2 / n} 1 is 1.00 Ultra 1.03 or less, and preferably _n 2 / _{n 3} is less than 1.00 0.97 or _more, n 2 / _{n 1} More preferably, it is 1.01 or more and 1.03 or less, and n ₂ / n ₃ is 0.97 or more and 0.99 or less.
Further, when the condition (ii) is satisfied, _{it is preferable that n 2} / n ₁ is 0.97 or more and less than 1.00, and n ₂ / n ₃ is more than 1.00 and 1.03 or less, and n ₂ / n. ₁ is 0.97 or more and 0.99 or less, and n ₂ / n ₃ is 1.01 or more. It is more preferably 03 or less.
By satisfying the above-mentioned preferable conditions with respect to the condition (i) or the condition (ii), the balance of suppression of interference fringes and whitening can be improved.

If multiple resin are mixed in a layer in contact with the object to be transferred among the transfer layer, the refractive index of the mixed resin and the refractive index n ₁ of the resin 1. When a plurality of resin to the transfer material are mixed, the refractive index of the mixed resin and the refractive index n ₃ of the resin 3.
In the present invention, the refractive index is based on light having a wavelength of 589 nm.

<Transcribed product>
Examples of the transferred product include a molded product containing a resin as a main component.
As the material to be transferred, one that has been molded into the shape of the molded product in advance may be used, or the shape of the molded product may be formed at the time of molding by pouring a resin into a mold or the like.

From the viewpoint of moldability, the resin constituting the transferred product is preferably a thermoplastic resin or a thermosetting resin, and more preferably a thermoplastic resin.
The thermoplastic resins include polystyrene resins, polyolefin resins, ABS resins (including heat-resistant ABS resins), AS resins, AN resins, polyphenylene oxide resins, polycarbonate resins, polyacetal resins, acrylic resins, and polyethylene terephthalates. Examples thereof include resins, polybutylene tephthalate-based resins, polysulfone-based resins, and polyphenylene sulfide-based resins.

The transferred product may contain general-purpose additives such as an ultraviolet absorber, a light stabilizer, and an antioxidant.

A printing layer may be provided on the surface of the object to be transferred on the transfer layer side or the surface of the object to be transferred opposite to the transfer layer.
The pattern of the printing layer is arbitrary, and examples thereof include wood grain, stone grain, cloth grain, sand grain, circle, quadrangle, polygon, geometric pattern, character, and solid printing.
The printing layer preferably contains a binder resin such as a polyvinyl resin, a polyester resin, an acrylic resin, a polyvinyl acetal resin, and a cellulose resin, and a pigment and / or a dye.
The thickness of the print layer is preferably 0.5 to 40 μm, more preferably 1 to 30 μm from the viewpoint of designability.

<Particles>
The decorative molded article of the present invention has particles at least a part of the interface between the transfer material and the transfer layer.
As the particles, those satisfying the condition (i) or the condition (ii) may be selected from the relationship with the refractive index of the resin 1 and the resin 2, and one or more kinds selected from the organic particles and the inorganic particles can be used. ..

Examples of the organic particles include particles composed of polymethylmethacrylate, polyacrylic-styrene copolymer, melamine resin, polycarbonate, polystyrene, polyvinyl chloride, benzoguanamine-melamine-formaldehyde condensate, silicone, fluororesin, polyester resin and the like. Can be mentioned.
Examples of the inorganic particles include particles made of silica, alumina, antimony, zirconia, titania and the like.
The shape of the particles may be spherical or indeterminate, but the indeterminate shape is preferable from the viewpoint of strengthening the internal haze (internal diffusion).

The average particle size of the particles is preferably 0.05 to 8.0 μm, more preferably 0.5 to 5.0 μm.
In the present specification, the average particle size is 50% particle size (d50: median size) when the particles dispersed in the solution are measured by a dynamic light scattering method and the particle size distribution is expressed by a volume cumulative distribution. .. The 50% particle size can be measured using, for example, a Microtrac particle size analyzer (manufactured by Nikkiso Co., Ltd.).

The particles can be obtained by, for example, (a) preliminarily blending the particles with the transferred material and / or (b) preliminarily blending the particles in the layer of the transfer layer in contact with the transferred material. It can be present at least part of the interface with the transfer layer. Among the above-described embodiments, the embodiment (b) is preferable in which particles are likely to be present at at least a part of the interface between the transfer material and the transfer layer, and the amount of particles used is likely to be suppressed.
In the case of the aspect (b), it is preferable that the thickness T of the transfer layer in contact with the object to be transferred and the average particle diameter D of the particles satisfy the relationship of 1.0 <D / T. The D / T is more preferably 1.1 or more and 2.0 or less, and further preferably 1.3 or more and 1.7 or less.

In the case of the above-mentioned aspects (a) and / or (b), the content of the particles is preferably 0.1 to 20% by mass, and 0.5 to 15% by mass, based on the total solid content of the layer containing the particles. Is more preferable, and 1 to 10% by mass is further preferable.
By setting the content of the particles in the above range, the balance of suppressing interference fringes and whitening can be improved.
Further, by setting the particle content to 0.1% by mass or more, defects can be made less noticeable, and when a decorative molded product is used on the front surface of a display element such as a liquid crystal display element, glare is suppressed. It can be done easily. In addition, "glare" refers to a phenomenon in which minute variations in brightness can be seen in the image light due to the uneven structure. Further, by setting the particle content to 20% by mass or less, when the transfer layer has the first region X and the second region Y, which will be described later, it is suppressed that the two regions are difficult to distinguish, and the design is good. Can be.

As long as the effect of the present invention is not impaired, the particles existing at the interface between the transfer material and the transfer layer may contain particles that do not satisfy the condition (i) or the condition (ii).

<Transfer layer>
The transfer layer has one or more layers. The layer constituting the transfer layer is not particularly limited, and examples thereof include a protective layer 21, an anchor layer 22, and an adhesive layer 23 shown in FIG.
The transfer layer is transferred onto the object to be transferred using, for example, a transfer sheet described later.

(Protective layer)
The protective layer is located on the surface of the decorative molded product, for example, and has a role of protecting the decorative molded product from abrasion, light, chemicals, and the like.

The protective layer preferably contains a cured product of the curable resin composition as a main component. The main component means 50% by mass or more of the total solid content constituting the protective layer, and the ratio is preferably 70% by mass or more, more preferably 80% by mass or more, and 90% by mass or more. Is even more preferable.
Examples of the cured product of the curable resin composition include a cured product of the thermosetting resin composition and a cured product of the ionizing radiation curable resin composition, and among these, the cured product of the ionizing radiation curable resin composition is preferable.
Further, the protective layer may contain a thermoplastic resin, but the amount thereof is preferably a small amount from the viewpoint of improving scratch resistance. Specifically, the content of the thermoplastic resin in the protective layer is preferably less than 5% by mass, more preferably less than 1% by mass, and even more preferably less than 0.1% by mass. It is even more preferably 0% by mass.

The thermosetting resin composition is a composition containing at least a thermosetting resin, and is a resin composition that is cured by heating. Examples of the thermosetting resin include acrylic resin, urethane resin, phenol resin, urea melamine resin, epoxy resin, unsaturated polyester resin, and silicone resin. In the thermosetting resin composition, a curing agent is added to these curable resins as needed.

The ionizing radiation curable resin composition is a composition containing a compound having an ionizing radiation curable functional group (hereinafter, also referred to as “ionizing radiation curable compound”). Examples of the ionizing radiation curable functional group include an ethylenically unsaturated group such as a (meth) acryloyl group, a vinyl group and an allyl group, and an epoxy group and an oxetanyl group.
As the ionizing radiation curable resin, a compound having an ethylenically unsaturated bond group is preferable. Further, from the viewpoint of suppressing damage to the protective layer in the process of producing a decorative molded product, the ionizing thermosetting resin is more preferably a compound having two or more ethylenically unsaturated bonding groups, and among them, ethylene. A polyfunctional (meth) acrylate-based compound having two or more sex-unsaturated bonding groups is more preferable. As the polyfunctional (meth) acrylate compound, either a monomer or an oligomer can be used.
Note that ionizing radiation means electromagnetic waves or charged particle beams that have energy quanta capable of polymerizing or cross-linking molecules, and usually ultraviolet rays (UV) or electron beams (EB) are used. Electromagnetic waves such as X-rays and γ-rays, and charged particle beams such as α-rays and ion rays can also be used.
When the ionizing radiation curable resin is an ultraviolet curable resin, it is preferable that the ionizing radiation curable resin composition contains an additive such as a photopolymerization initiator or a photopolymerization accelerator.

The cured product of the curable resin composition is left in a semi-cured state at the time of forming the protective layer, and after being transferred to the transferred material, the curable resin composition is cured by heating, irradiation with ionizing radiation, or the like. It may be allowed to be completely cured. By doing so, the followability of the transfer sheet to the transferred material is improved, so that the moldability can be improved.
The protective layer may contain particles such as organic particles and inorganic particles, an ultraviolet absorber, a light stabilizer, an antioxidant and the like.

The thickness of the protective layer is preferably 0.5 to 30 μm, more preferably 1 to 20 μm, and even more preferably 3 to 10 μm.
In the present specification, the thickness of each layer can be calculated from the average value of the values at 20 points by measuring the thickness at 20 points from the image of the cross section taken by, for example, a scanning transmission electron microscope (STEM).

(Adhesive layer)
The adhesive layer has a role of improving the adhesiveness between the object to be transferred such as a decorative molded product and the transfer layer, and improving the transfer work.
If the adhesiveness between the protective layer and the object to be transferred is good, it is not necessary to provide the adhesive layer.

As the adhesive layer, it is preferable to use a heat-sensitive or pressure-sensitive resin suitable for the material of the transferred material. For example, when the material of the object to be transferred is an acrylic resin, it is preferable to use an acrylic resin. When the material of the object to be transferred is a polyphenylene oxide polystyrene resin, a polycarbonate resin, or a styrene resin, an acrylic resin, polystyrene resin, polyamide resin, or the like having an affinity for these resins should be used. Is preferable. Further, when the material of the object to be transferred is a polypropylene resin, it is preferable to use a chlorinated polyolefin resin, a chlorinated ethylene-vinyl acetate copolymer resin, a cyclized rubber, or a kumaron inden resin.
Additives such as an ultraviolet absorber and an infrared absorber may be blended in the adhesive layer.
The thickness of the adhesive layer is preferably 0.1 to 10 μm, more preferably 0.5 to 5 μm.

(Anchor layer)
The anchor layer is a layer provided as needed to improve heat resistance when placed in a high temperature environment such as in-mold molding. The anchor layer is preferably formed between the protective layer and the adhesive layer.

The anchor layer preferably contains a cured product of the curable resin composition.
Examples of the curable resin composition include a thermosetting resin composition and an ionizing radiation curable resin composition.
The embodiment of the thermosetting resin composition and the ionizing radiation curable resin composition of the anchor layer is the same as the embodiment of the thermosetting resin composition and the ionizing radiation curable resin composition of the protective layer.

The thickness of the anchor layer is preferably 0.1 to 6 μm, more preferably 0.5 to 5 μm.

(Print layer)
The transfer layer may further have a print layer. The printed layer has a role of enhancing the design of the decorative molded product. The position of the print layer in the thickness direction or the position in the plane is arbitrary.
The specific embodiment of the print layer of the transfer layer is the same as the embodiment of the print layer of the transfer material.

The thickness of the transfer layer is preferably 15 μm or less, more preferably 12 μm or less. By setting the thickness of the transfer layer to 15 μm or less, when the decorative molded product is used on the front surface of a display element such as a liquid crystal display element, it is possible to suppress a decrease in the resolution of the display element. Further, from the viewpoint of protection of the object to be transferred, the thickness of the transfer layer is preferably 5 μm or more, and more preferably 7 μm or more.

The transfer layer preferably has light transmission. Specifically, the total light transmittance of JIS K7361-1: 1997 in the transfer layer is preferably 80% or more, and more preferably 90% or more. It should be noted that the portion of the transfer layer having the print layer may be concealed without having light transmission.

The transfer layer preferably has a first region X having an uneven portion and a second region Y adjacent to the first region X on a surface opposite to the object to be transferred.
By providing the first region X having the uneven portion in the transfer layer, it is possible to improve the design of the decorative molded product and to impart partial antiglare property to the decorative molded product.

The arrangement of the first region X and the second region Y is arbitrary. For example, a configuration in which the first region X is arranged in the center of the decorative molded product 100 and the second region Y is arranged in the peripheral portion (configuration of FIG. 1); the second region Y and the peripheral portion are arranged in the central portion of the decorative molded product 100. 1. A configuration in which the first region X is arranged; a configuration in which the first region X and the second region Y are arranged in parallel; a plurality of independent first regions X are arranged near the center of the decorative molded product 100. A configuration in which a second region Y is arranged around a plurality of first regions X; a plurality of independent second regions Y are arranged near the center of the decorative molded product 100, and a second region Y is arranged around the plurality of second regions Y. A configuration in which one region X is arranged; and the like can be mentioned.

The first region X and the second region Y are measured according to JIS B0601: 1994 and the arithmetic mean roughness Ra ₁ at a cutoff value of 0.8 mm of the first region X and JIS B0601: 1994. _{It is preferable that the arithmetic mean roughness Ra 2} at the cutoff value of 0.8 mm in the second region Y satisfies the relationship of Ra ₁ > Ra _2.
Satisfying _{the relationship of Ra 1} > Ra ₂ means that the decorative molded product has two regions having different surface shapes. As described above, the decorative molded product has two regions having different surface shapes, so that the design can be improved.
In the present specification, Ra is an average value when 20 points are measured. The measurement points shall be visually free of any abnormal points such as dust and scratches, and the measurement points shall not be biased.

Ra _{1- Ra 2} is preferably 0.05 to 1.00 μm, more preferably 0.07 to 0.80 μm, and even more preferably 0.12 to 0.30 μm.
By setting _{Ra 1- Ra 2} to 0.05 μm or more, the contrast between the first region and the second region (for example, the contrast such as antiglare and glossiness) becomes clear, and the design is improved. Can be done. Further, _{by setting Ra 1- Ra 2} to 1.00 μm or less, it is possible to easily suppress a sense of discomfort due to the contrast between the first region and the second region being too strong.
If the condition (i) or (ii) is not satisfied and Ra _{1- Ra 2 is set} to 0.05 μm or more, the interference fringes in the second region may be more conspicuous than those in the first region. However, in the present invention, since the condition (i) or (ii) is satisfied, even if Ra _{1- Ra 2 is set} to 0.05 μm or more, it is possible to suppress the conspicuous interference fringes in the second region.

Ra ₁ is preferably 0.06 to 1.20 μm. By _{setting Ra 1} to the above range, it is possible to easily improve the balance between the design property, the antiglare property and the whitening suppression of the decorative molded product.
Ra ₁ is more preferably 0.10 to 1.00 μm, further preferably 0.13 to 0.50 μm, and even more preferably 0.15 to 0.35 μm.

The second region Y may have no uneven portion and may be substantially smooth, or may have an uneven portion like the first region X.
Ra ₂ is preferably less than 0.10 μm, more preferably 0.07 μm or less, still more preferably 0.05 μm or less, from the viewpoint of clarifying the contrast with the first region X. ..
When the condition (i) or (ii) is not satisfied and Ra _{2 is set} to the above range, the interference fringes in the second region become conspicuous. However, in the present invention, since the condition (i) or (ii) is satisfied, _{even if Ra 2 is set} to the above range, it is possible to suppress the conspicuous interference fringes in the second region.

_{Further, the first region X has a ten-point average roughness Rz 1} of 0.25 to 5.00 μm at a cutoff value of 0.8 mm of the first region X, which is measured according to JIS B0601: 1994. , More preferably 0.50 to 2.50 μm, and even more preferably 1.00 to 2.00 μm.
By _{setting Rz 1} to 0.25 μm or more, when a defect such as a scratch occurs in the first region X, the defect can be made inconspicuous and the yield can be improved. Further, _{by setting Rz 1} to 5.00 μm or less, deterioration of the design of the decorative molded product and glare can be suppressed.

The surface shape of the transfer layer can be adjusted by adjusting the surface shape of the release sheet of the transfer sheet, which will be described later.

[Manufacturing method of decorative molded products]
The method for producing a decorative molded article of the present invention includes a step of transferring the transfer layer of the following transfer sheet A to an object to be transferred and a step of peeling off the release sheet of the following transfer sheet A, and refracting the following binder resin. When the rate is n ₁ ', the refractive index of the following particles is n ₂ ', and the refractive index of the resin contained in the transferred product is n ₃ ', the following conditions (i') or (ii') are satisfied. , Manufacturing method of decorative molded products.
n ₁ '<n ₂ '<n ₃ '(i')
n ₃ '<n ₂ '<n ₁ '(ii')
<Transfer sheet A>
A transfer sheet having a transfer layer on the release sheet, the transfer layer having one or more layers, and the layer farthest from the release sheet among the transfer layers containing a binder resin and particles. A.

The layer of the transfer sheet A farthest from the release sheet is the layer in contact with the transfer material. When the refractive index of the binder resin and particles contained in the layer and the refractive index of the resin of the transferred material satisfy the conditions of (i') or (ii'), interference fringes and whitening of the decorative molded product can be prevented. It can be suppressed.

In order to satisfy the conditions of (i') or (ii'), the refractive index of each material may be measured in advance, and a combination of materials satisfying the conditions of (i') or (ii') may be selected.
When a plurality of resins are mixed in the layer of the transfer layer in contact with the object to be transferred, the refractive index of the mixed resin is defined as the refractive index n ₁ '. When a plurality of resins are mixed in the transferred material, the refractive index of the mixed resin is defined as the refractive index n ₃ '.
As long as the effect of the present invention is not impaired, the particles existing at the interface between the transfer material and the transfer layer may contain particles that do not satisfy the conditions (i') or (ii'). ..

'If satisfying, _{n 2} conditions (i)' is preferably / _{n 1} 'is 1.00 Ultra 1.03 or less, and _{n 2'} / _{n 3} 'is less than 0.97 or more 1.00, n ₂ '/ _{n 1'} is 1.01 or more 1.03 or less, and _{n 2} '/ _{n 3'} is more preferably 0.97 to 0.99.
Also, 'if they meet, _{n 2} conditions (ii)' is preferably / _{n 1} 'is less than 0.97 to 1.00, and _{n 2'} / _{n 3} 'is 1.00 Ultra 1.03 or less , _{n 2} '/ _{n 1'} is 0.97 to 0.99, and _{n 2} '/ _{n 3'} is 1.01 or more. It is more preferably 03 or less.

A known transfer method can be used as a method for producing a decorative molded product. For example, (i) a method of attaching a transfer sheet A to a preformed object to be transferred, transferring the transfer layer of the transfer sheet A, and then peeling off the release sheet of the transfer sheet A, (ii) a flat plate. A method in which a transfer sheet A is attached to an object to be transferred, the transfer layer of the transfer sheet A is transferred, the release sheet of the transfer sheet A is peeled off, and then the transfer sheet on which the transfer layers are laminated is molded. (Iii) A method of integrating the transfer material with the transfer sheet A at the time of injection molding and then peeling off the release sheet of the transfer sheet A [in-mold molding (injection molding simultaneous transfer decoration method)] and the like. Be done. Above all, according to in-mold molding (injection molding simultaneous transfer decoration method), it is possible to perform decoration molding on a resin molded body having a complicated surface shape such as a three-dimensional curved surface.

As one embodiment of the method for manufacturing a decorative molded product by in-mold molding,
(Z1) A step of arranging the transfer layer side of the transfer sheet A toward the inside of the in-mold molding die, and
(Z2) A step of injecting resin into an in-mold molding die and
(Z3) A step of integrating the transfer sheet A and the above resin to transfer the transfer layer of the transfer sheet A onto the surface of the resin molded product (object to be transferred).
(Z4) Examples thereof include a step of removing the release sheet of the transfer sheet A after taking out the resin molded body (transfered object) from the mold.

<Transcribed product>
Examples of the transferred product include a resin molded product. As the resin molded body, it is preferable to use an injection-moldable thermoplastic resin or a thermosetting resin, and various known resins can be used.
When a decorative molded product is manufactured by in-mold molding, it is preferable to use a thermoplastic resin. Examples of such thermoplastic resins include polystyrene-based resins, polyolefin-based resins, ABS resins (including heat-resistant ABS resins), AS resins, AN resins, polyphenylene oxide-based resins, polycarbonate-based resins, polyacetal-based resins, and acrylic-based resins. Examples thereof include polyethylene terephthalate resin, polybutylene tephthalate resin, polysulfone resin, and polyphenylene sulfide resin.

(Transfer Sheet A)
FIG. 2 is a cross-sectional view showing an embodiment of the transfer sheet A used for producing the decorative molded product of the present invention. The transfer sheet A of FIG. 2 has a transfer layer 20 on the release sheet 30. The release sheet of FIG. 2 is composed of a support 31 and a release layer 32. Further, the release sheet of FIG. 2 has a first region X'having an uneven portion and a second region Y'adjacent to the first region X on the surface on the side in contact with the transfer layer. Further, the release layer of FIG. 2 is composed of a partially uneven layer 32A and a release agent layer 32B. Further, the transfer layer 20 of FIG. 2 has a protective layer 21, an anchor layer 22, and an adhesive layer 23, and is contained in the layer (adhesive layer 23) of the transfer layer 20 farthest from the release sheet 30. Contains particles 24.

(Release sheet)
The release sheet is peeled off after the transfer layer is transferred to an object to be transferred such as a resin molded body.
The release sheet 30 is composed of, for example, a support 31 and a release layer 32, as shown in FIG. Of course, the release sheet may be a single layer of the support or a single layer of the release layer, or may have a configuration of three or more layers having layers other than the support and the release layer, and is shown in FIG. As described above, there may be a configuration of three or more layers of the release layer 32 composed of two or more layers and the support 31.

Supports for the release sheet include polyolefin resins such as polyethylene and polypropylene, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, ethylene / vinyl acetate copolymers, and vinyl resins such as ethylene / vinyl alcohol copolymers. Polyester resins such as polyethylene terephthalate, polyethylene naphthalate, and polybutylene terephthalate, acrylic resins such as methyl poly (meth) acrylate and ethyl poly (meth) acrylate, styrene resins such as polystyrene, nylon 6 or nylon 66, etc. Examples thereof include a plastic film made of a resin such as a polyamide resin represented by.
Among these plastic films, a biaxially stretched polyester film having excellent heat resistance and dimensional stability and excellent alignment during transfer is preferable.

The thickness of the support is preferably 12 to 150 μm, more preferably 25 to 100 μm, from the viewpoint of moldability, shape followability, and handling.
Further, the surface of the support may be subjected to physical treatment such as corona discharge treatment and oxidation treatment, or a coating material called an anchor agent or a primer may be applied in advance in order to enhance the adhesiveness with the release layer. ..

(First region X'and second region Y')
When a first region X having an uneven portion and a second region Y adjacent to the first region X are formed on the surface of the transfer layer of the decorative molded product on the side opposite to the transferred object, the release sheet is used. A first region X'having an uneven portion and a second region Y'adjacent to the first region X may be formed on the surface on the side in contact with the transfer layer.
The first region X'and the second region Y'of the release sheet are formed on the surface of the transfer layer of the decorative molded product after the transfer layer is transferred to the object to be transferred to obtain a decorative molded product. It corresponds to the 1st region X and the 2nd region Y.

The arrangement of the first region X'and the second region Y'is arbitrary, and specific examples thereof include those similar to those exemplified in the arrangement of the first region X and the second region Y of the decorative sheet.
The suitable surface shapes (Ra, Rz) of the first region X'and the second region Y'are the same as the suitable surface shapes of the first region X and the second region Y of the decorative sheet.
The first region X'and the second region Y'can be formed on the support itself by shaping the support, but the first region X'and the second region Y'are formed by the release layer formed on the support. It is preferable to form two regions Y'.

(Release layer)
The interface between the release sheet and the transfer layer is formed so that it can be peeled off when it comes into close contact with the transfer material.
In order to improve the releasability, it is preferable that the releasing sheet has a releasing layer on the surface on the side in contact with the transfer layer.
The release layer can be formed from, for example, a single layer of the release agent layer. Further, when the first region X'and the second region Y'are formed by the release layer, the release layer has a two-layer structure of a partially concavo-convex layer and a release agent layer, as shown in FIG. Is preferable. If the release property between the partially uneven layer and the transfer layer is sufficiently high, the release agent layer may be omitted.

The release agent layer is preferably composed mainly of resin.
The resin of the release agent layer is not particularly limited as long as it is a material having a predetermined film strength and low adhesive strength to the transfer layer, and is a general-purpose thermoplastic resin, a cured product of a thermosetting resin composition, and ionization. Examples thereof include a cured product of a thermosetting resin composition. Specifically, fluororesins, silicone resins, acrylic resins, polyester resins, polyolefin resins, polystyrene resins, polyurethane resins, cellulose resins, vinyl chloride-vinyl acetate copolymer resins, nitrified cotton. And so on.
Among these, a cured product of the thermosetting resin composition is preferable, and a thermosetting resin composition containing an acrylic polyol and an isocyanate is more preferable.

The release agent layer may contain waxes such as synthetic wax and natural washes in order to improve the release property. As the synthetic wax, a polyolefin wax such as polyethylene wax or polypyrene wax is preferable.

The thickness of the release agent layer is preferably 0.1 to 5.0 μm, more preferably 0.3 to 1.0 μm.

(Partially uneven layer)
The partially uneven layer preferably contains a resin component such as a thermoplastic resin, a cured product of a thermosetting resin composition, or a cured product of an ionizing radiation curable resin composition as a main component. The main component means 50% by mass or more of the total solid content constituting the partially uneven layer, and the ratio is preferably 70% by mass or more, and more preferably 90% by mass or more.
Among the above resin components, a cured product of an ionizing radiation curable resin composition which is excellent in strength and can impart an accurate and precise shape because it cures instantly is preferable. Further, from the viewpoint of facilitating the effect of the ionizing radiation curable resin composition, it is preferable to contain 70% by mass or more of the cured product of the ionizing radiation curable resin composition among all the resin components constituting the partially concavo-convex layer. It is more preferably contained in an amount of 90% by mass or more, further preferably contained in an amount of 95% by mass or more, and further preferably contained in an amount of 100% by mass or more.

The partially uneven layer may be formed by coating, but from the viewpoint of forming an accurate and precise shape, it is formed by printing using a plate having a shape complementary to the first region X and the second region Y. Is preferable. If the partially concavo-convex layer has other regions, the plate preferably has a shape complementary to the other regions. Details of the method for forming the partially uneven layer using the plate will be described later.

The embodiments of the thermosetting resin composition and the ionizing radiation curable resin composition used for forming the partially uneven layer are the same as the embodiments of the thermosetting resin composition and the ionizing radiation curable resin composition of the protective layer. The same is true.

The thickness of the partially concavo-convex layer is not particularly limited, but is preferably 1 to 15 μm, more preferably 2 to 12 μm.

The release sheet may have an antistatic layer. By having the antistatic layer, peeling charge when peeling the release sheet can be suppressed, and transfer workability can be improved.

The antistatic layer preferably contains an antistatic agent such as an electron conduction type antistatic agent and an ion conduction type antistatic agent, and a binder resin.
The antistatic layer is preferably formed on the surface of the release sheet opposite to the surface on the side in contact with the transfer layer.
The surface resistivity of the antistatic layer is preferably adjusted to the range of ^{1.0 × 10 -9} Ω / □ to 1.0 × 10 ^{-12 Ω / □.}
An antistatic agent may be contained in another layer such as a release layer to exhibit antistatic properties.

(Manufacturing method of release sheet)
The release sheet having the first region X'and the second region Y'can be produced, for example, by the following steps (A1) to (A2).

(A1) A step of applying an ink for forming a partially uneven layer containing an ionizing radiation curable resin composition onto a support to form a layer containing the ionizing radiation curable resin composition.
(A2) Using a plate having a shape complementary to the first region X'and the second region Y', the uncured partial unevenness layer is formed, and at the same time, ionizing radiation is irradiated to form the shaped partial unevenness. The process of curing the layer.

When the ionizing radiation curable resin composition contains a solvent, it is preferable to dry the solvent in the step (A1).
When the release sheet has a release agent layer, the step of forming the release agent layer on the partially uneven layer (A3) may be performed after the step (A2).

The plate used in the step (A2) can be obtained by engraving the surface of the cylinder into a desired shape by, for example, etching, sandblasting, cutting and laser processing, or a combination thereof. Alternatively, a long male plate (a plate having the same shape as the first region X'and the second region Y') is prepared by laser engraving, stereolithography, etc., and the inverted version is used on the surface of the cylinder. It can be obtained by wrapping.
The surface of the plate used in the step (A2) is preferably hard-plated with chrome or the like.

The release sheet can also be produced by, for example, the following steps (B1) to (B2).
(B1) A step of filling a plate having a shape complementary to the first region X'and the second region Y'with an ink for forming a partially uneven layer.
(B2) A step of transferring the ink for forming a partially uneven layer filled in a plate onto a support, drying and curing as necessary to form a partially uneven layer.

From the viewpoint of forming an accurate and precise shape, the above-mentioned steps (A1) and (A2) are suitable.

(Transfer layer)
A transfer layer is formed on the release sheet.
The transfer layer has one or more layers, and the layer of the transfer layer farthest from the release sheet is configured to contain the binder resin and particles.

As shown in FIG. 2, the transfer layer 20 has a protective layer 21, an anchor layer 22, and an adhesive layer 23 in this order from the side closer to the release sheet 30. The transfer layer may have a print layer (not shown) from the viewpoint of design.
In the case of FIG. 2, the layer of the transfer layer farthest from the release sheet is the adhesive layer 23, and the particles 24 are contained in the adhesive layer 23.

It is preferable that the thickness T'of the transfer layer farthest from the release sheet and the average particle size D'of the particles contained in the layer satisfy the relationship of 1.0 <D'/ T'. The D / T is more preferably 1.1 or more and 2.0 or less, and further preferably 1.3 or more and 1.7 or less.

The thickness of the transfer layer is preferably 15 μm or less, more preferably 12 μm or less. By making the thickness of the transfer layer 15 μm or less, the strain generated at the interface between the release sheet and the transfer layer is suppressed, and the transfer layer is suppressed from falling off from the release sheet during storage or transfer of the transfer sheet. The handleability can be improved, and the transfer layer can be transferred neatly to the object to be transferred. Further, by setting the thickness of the transfer layer to 15 μm or less, when the decorative molded product is used on the front surface of a display element such as a liquid crystal display element, it is possible to suppress a decrease in the resolution of the display element. The interference fringes tend to be suppressed as the thickness of the transfer layer is increased, but if the thickness of the transfer layer is increased too much, the above-mentioned problems (dropping of the transfer layer, reduction in resolution) may occur. is there. The present invention is useful in that interference fringes can be suppressed without increasing the thickness of the transfer layer.
Further, from the viewpoint of protection of the object to be transferred, the thickness of the transfer layer is preferably 5 μm or more, and more preferably 7 μm or more.

The embodiment of each layer (for example, protective layer, anchor layer, adhesive layer, printing layer) constituting the transfer layer of the transfer sheet is the same as the embodiment of each layer constituting the transfer layer of the decorative molded product. ..

Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples. The present invention is not limited to the embodiments described in the examples.

1. 1. Evaluation and measurement The following evaluation and measurement were performed on the decorative molded products obtained in Examples and Comparative Examples. The results are shown in Table 1.
1-1. Interference fringes The degree of interference fringes of the decorative molded products obtained in Examples and Comparative Examples was visually observed under the illumination of a fluorescent lamp. 20 points on the entire surface of the decorative molded product, 3 points where the interference fringes were not noticeable, 2 points where the interference fringes were a little worrisome, and 1 point where the interference fringes were very worrisome. Human subjects evaluated, calculated the average score, and ranked according to the following criteria.
<Evaluation criteria>
AA: Average score is 2.7 or more A: Average score is 2.0 or more and less than 2.7 B: Average score is 1.5 or more and less than 2.0 C: Average score is less than 1.5

1-2. Whitening The degree of whitening of the decorative molded products obtained in Examples and Comparative Examples was visually observed under the illumination of a fluorescent lamp. Twenty subjects were given 3 points for those who did not care about whitening, 2 points for those who were slightly concerned about whitening, and 1 point for those who were very concerned about whitening on the entire surface of the decorative molded product. Evaluated, calculated the average score, and ranked according to the following criteria.
<Evaluation criteria>
AA: Average score is 2.7 or more A: Average score is 2.0 or more and less than 2.7 B: Average score is 1.5 or more and less than 2.0 C: Average score is less than 1.5

1-3. Resolution The decorative molded products obtained in Examples and Comparative Examples were placed in front of a commercially available liquid crystal display device, and a still image was displayed on the liquid crystal display device. An image having good resolution without blurring was designated as "A", and an image having blurring and poor resolution was designated as "C".

1-4. Handleability The decorative molded products of Examples and Comparative Examples were mass-produced, and the handleability was evaluated according to the following criteria.
A: The transfer layer does not fall off from the release sheet during storage or transfer of the transfer sheet, and the handleability of the transfer sheet is good. In addition, the transfer layer can be neatly transferred to the decorative molded product.
C: The transfer layer may fall off from the release sheet during storage or transfer of the transfer sheet. In addition, the transfer layer transferred to the decorative molded product may have wrinkles.

1-5. Arithmetic mean roughness Ra, 10-point average roughness Rz
Using a surface roughness measuring instrument (model number: SE-3400 / manufactured by Kosaka Laboratory Co., Ltd.), the first region X of the transfer layer of the decorative molded product obtained in Examples and Comparative Examples under the following measurement conditions. And for the second region Y, Ra and Rz of JIS B0601: 1994 were measured at a cutoff value of 0.8 mm.
[Needle of surface roughness detector]
Product name SE2555N manufactured by Kosaka Research Institute (tip radius of curvature: 2 μm, apex angle: 90 degrees, material: diamond)
[Measurement conditions of surface roughness measuring instrument]
-Reference length (cutoff value of roughness curve λc): 0.8 mm
-Evaluation length (reference length (cutoff value λc) x 5): 4.0 mm
・ Feeding speed of stylus: 0.5 mm / s
-Preliminary length: (cutoff value λc) x 2
・ Vertical magnification: 2000 times ・ Horizontal magnification: 10 times

2. Preparation of Plate A cylinder having a hard copper-plated layer having a thickness of 200 μm was prepared, and the entire surface of the cylinder was covered with a mask in which the portion forming the uneven portion of the first region X was punched. Next, unevenness was formed in the portion not covered by the mask by blasting using glass beads. Next, the mask was removed, and the surface of the cylinder was hard-plated (chrome-plated) to obtain a plate.

3. 3. Preparation of Release Sheet A polyethylene terephthalate film having a thickness of 50 μm was coated with an ink for forming a partially uneven layer having the following formulation and dried to form an uncured partial uneven layer having a thickness of 8.0 μm.
<Ink for forming a partially uneven layer>
60 parts by mass of ionizing radiation curable resin composition (manufactured by Kyoei Chemical Co., Ltd., ES105M)
・ Methyl ethyl ketone 40 parts by mass ・ Silicone leveling agent 0.5 parts by mass

Next, using the plate prepared in "2" above, the uncured partial uneven layer is formed, and at the same time, ionizing radiation is irradiated from the polyethylene terephthalate film side to cure the formed partial uneven layer, and the polyethylene terephthalate is formed. A partially uneven layer was formed on the film.
Next, the release agent layer forming ink of the following formulation was applied to the entire surface and dried to form a release agent layer having a thickness of 0.5 μm to obtain a release sheet.

<Ink for forming a mold release agent layer>
-70 parts by mass of acrylic polyol (manufactured by Soken Chemical Co., Ltd., product name: Thermolac SU100A)
25 parts by mass of isocyanate (manufactured by Mitsui Chemicals, trade name: Takenate D-110N)
-Ethyl acetate 161 parts by mass-Methyl isobutyl ketone 56 parts by mass

4. Preparation of transfer sheet, preparation of decorative molded products 4-1. Example 1
On the release sheet obtained in "3" above, the protective layer forming ink of the following formulation ^{is applied so that the adhesion amount after drying is 6.5 g / m 2} (6.0 μm), and the coating film is applied. After the formation, the protective layer was semi-cured by irradiating the light source with an H bulb, a transport speed of 20 m / min, and an output of 40% using a fusion UV lamp system. The integrated light intensity at this time was measured with an illuminance meter (trade name: UVPF-A1) manufactured by Eye Graphics Co., Ltd. and found to be 15 mJ / m ² .

<Ink for forming protective layer>
-Urethane acrylate-based UV curable resin composition 70 parts by mass (manufactured by Dainichiseika Co., Ltd., trade name: Seika Beam HT-X)
(Solid content 35% by mass, toluene / ethyl acetate mixed solvent)
-Urethane acrylate-based UV curable resin composition 30 parts by mass (manufactured by Dainichiseika Co., Ltd., trade name: Seika Beam EXF-HT-1)
(Solid content 40% by mass, toluene / methyl ethyl ketone mixed solvent)

Next, the anchor layer forming ink of the following formulation is applied onto the protective layer so that the adhesion amount after drying is 3.0 g / m ^2, and after forming a coating film, it is dried at 40 ° C. for 72 hours and cured. An anchor layer having a thickness of 2 μm was formed.
<Ink for forming an anchor layer>
-Acrylic polyol 100 parts by mass (manufactured by Dainichiseika Co., Ltd., trade name: TM-VMAC, solid content 25% by mass)
(Toluene / ethyl acetate / methyl ethyl ketone mixed solvent)
・ Xanmethylene diisocyanate 10 parts by mass (manufactured by Dainichiseika Co., Ltd., trade name: PTC-RC3)
(Solid content 75% by mass, solvent: ethyl acetate)

Next, the adhesive layer forming ink of the following formulation was applied onto the anchor layer so that the adhesion amount after drying was 2.5 g / m ^2, and a coating film was formed. The coating film was dried to form an adhesive layer having a thickness of 2 μm, and a transfer sheet was obtained. The total thickness of the transfer layer of the transfer sheet was 10 μm.
<Ink for forming adhesive layer>
-Thermoplastic resin 465 parts by mass (acrylic ester resin ink, solid content 20% by mass)
(Refractive index n ₁ : 1.51)
-Acrylic-styrene copolymer particles 3 parts by mass (average particle size: 3.0 μm, refractive index n ₂ : 1.55)
・ Methyl ethyl ketone 40 parts by mass

The surface of the obtained transfer sheet on the adhesive layer side _{was superposed on a polycarbonate plate (refractive index n 3} : 1.59) having a thickness of 2 mm, and heat transfer was performed from the support side of the transfer sheet. Next, after peeling off the release sheet of the transfer sheet, the resin molded body was irradiated with ultraviolet rays (atmosphere, H valve, 800 mJ / cm ² ) to completely cure the protective layer, and the decorative molded product of Example 1 was obtained. Obtained.

4-2. Comparative Example 1
Comparison was performed in the same manner as in Example 1 except that the acrylic-styrene copolymer particles of the adhesive layer forming ink were changed to silica particles (average particle size: 3.0 μm, refractive index n _{2: 1.46).} The decorative molded product of Example 1 was obtained.

4-3. Comparative Example 2
As the adhesive layer forming ink, the decoration of Comparative Example 2 was carried out in the same manner as in Example 1 except that the adhesive layer forming ink of Example 1 from which the acrylic-styrene copolymer particles were removed was used. A molded product was obtained.

4-4. Reference example 1
As the adhesive layer forming ink, an ink obtained by removing acrylic-styrene copolymer particles from the adhesive layer forming ink of Example 1 was used, and the thickness of the adhesive layer was changed to 12 μm. In the same manner, the decorative molded product of Reference Example 1 was obtained. The total thickness of the transfer layer of Reference Example 1 was 20 μm.

From the results in Table 1, it can be confirmed that the decorative molded product of Example 1 can suppress interference fringes and whitening. Further, it can be confirmed that the decorative molded product of Example 1 has good resolution and good handleability in the manufacturing process.

The decorative molded product of the present invention can be suitably used for communication devices such as mobile phones, information devices inside automobiles, home appliances, and the like.

10: Transferee 20: Transfer layer 21: Protective layer 22: Anchor layer 23: Adhesive layer 24: Particles 30: Release sheet 31: Support 32: Release layer 32A: Partially uneven layer 32B: Release agent layer 50: Transfer sheet 100: Decorative molded product

Claims (6)

A decorative molded article having a transfer layer on a transfer material, wherein the transfer layer has one or more layers and has particles at least a part of an interface between the transfer material and the transfer layer.
The thickness T of the transfer layer in which the particles are in contact with the transfer target, and the thickness T of the transfer layer in contact with the transfer target and the average particle diameter D of the particles are 1.0 <D. Satisfy the relationship of / T≤2.0 and
When the refractive index of the resin contained in the layer in contact with the transferred object among the transfer layers is n ₁ , the refractive index of the particles is n ₂ , and the refractive index of the resin contained in the transferred object is n _3. , meets the following conditions (i) or (ii),
When the following condition (i) is satisfied, n ₂ / n ₁ is more than 1.00 and 1.03 or less, and n ₂ / n ₃ is 0.97 or more and less than 1.00, and the following condition (ii) is satisfied. , N ₂ / n ₁ is 0.97 or more and less than 1.00, and n ₂ / n ₃ is more than 1.00 and 1.03 or less .
n ₁ <n ₂ <n ₃ (i)
n ₃ <n ₂ <n ₁ (ii) The decorative molded product according to claim 1, wherein the transfer layer has a thickness of 15 μm or less. The first or second aspect of the present invention, wherein the transfer layer has a first region X having an uneven portion and a second region Y adjacent to the first region X on a surface opposite to the object to be transferred. Decorative molded products. _{Arithmetic mean roughness Ra 1} at a cutoff value of 0.8 mm in the first region X measured according to JIS B0601: 1994, and a cutoff value 0 in the second region Y measured according to JIS B0601: 1994. The decorative molded product according to claim 3 , wherein the arithmetic mean roughness Ra ₂ at 0.8 mm satisfies the relationship of Ra ₁ > Ra _2. Ra ₁ And the Ra ₂ In Ra ₁ -Ra ₂ Is the decorative molded article according to claim 4, wherein is 0.05 to 1.00 μm. The transfer layer having the following transfer sheet A and transferring the transfer target, and a step of peeling the release sheet follows the transfer sheet A, n ₁ the refractive index of Binder resin ', the refractive index of the following particles n ₂ ', the refractive index of the resin contained in the transfer target n _3' upon the, meets the following conditions (i ') or (ii'), if it meets the following conditions (i '), _{n 2} '/ n _1' is 1.00 ultra 1.03 or less, and _{n 2} '/ _{n 3'} is less than 0.97 to 1.00, the following conditions (ii ') if it meets, _{n 2'} / _{n 1} 'is less than 0.97 to 1.00, and _{n 2'} are / _{n 3} 'is less than 1.00 ultra 1.03, method of manufacturing the decorative molded article.
n ₁ '<n ₂ '<n ₃ '(i')
n ₃ '<n ₂ '<n ₁ '(ii')
<Transfer sheet A>
A transfer sheet having a transfer layer on the release sheet, the transfer layer having one or more layers, and the layer farthest from the release sheet among the transfer layers containing a binder resin and particles. A.

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