JP2014015029A - Decorative molding body and production method of decorative molding body - Google Patents

Decorative molding body and production method of decorative molding body Download PDF

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JP2014015029A
JP2014015029A JP2012155703A JP2012155703A JP2014015029A JP 2014015029 A JP2014015029 A JP 2014015029A JP 2012155703 A JP2012155703 A JP 2012155703A JP 2012155703 A JP2012155703 A JP 2012155703A JP 2014015029 A JP2014015029 A JP 2014015029A
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color
substrate
base material
thermoplastic resin
covering material
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JP5892885B2 (en
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Takayuki Inuzuka
隆之 犬塚
Hidefumi Arai
秀文 荒井
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Mitsubishi Electric Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a decorative molding body of a thermoplastic resin that combines both brilliant feeling having depth by both meanings of a color thickness and depth feeling, and vivid hue feeling.SOLUTION: A decorative molding body includes: a substrate comprising a thermoplastic resin including a luminosity material and a color pigment; and a coat material that is coated to at least one part of the substrate, and includes a transparent thermoplastic resin containing a color pigment. A hue angle of the coat material expressed by a LChcolor system is in a range of ±45° from the hue angle of the substrate, a chroma of the coat material is higher than the chroma of the substrate, and a brightness of the coat material is lower than the brightness of the substrate.

Description

この発明は、射出成形により加工された熱可塑性樹脂の加飾成形体等に関する。   The present invention relates to a decorative molded body of a thermoplastic resin processed by injection molding.

家電製品の筐体などにおいて、透明な樹脂や塗料を重ねることによる深みの向上やマイカ系のパール顔料やアルミ系のメタリック顔料などの光輝材を樹脂や塗料に配合することによる輝度感の向上で、高級感を演出する方法が知られている。このような方法としては、光輝材を混入した合成樹脂材料からなる光輝層を透明樹脂層で被覆した光輝性成形物が開示されている(例えば下記特許文献１参照)。   In the housing of home appliances, etc., by improving the depth by overlaying transparent resins and paints, and by improving the brightness by adding glitter materials such as mica-based pearl pigments and aluminum-based metallic pigments to resins and paints A method for producing a high-class feeling is known. As such a method, a glitter molded article in which a glitter layer made of a synthetic resin material mixed with a glitter material is coated with a transparent resin layer is disclosed (for example, see Patent Document 1 below).

また、鉄などの基材に着色顔料とマンセル色相環を着色顔料の色相を基準(０)とし、−５０から＋５０で表した場合、−５０から−２５、または＋２５から＋５０の色相を有する光輝性顔料を含有する光輝性ベース塗膜を形成し、さらに、光輝性顔料の色相に対し、−１０以上、＋１０以下の色相を有する着色顔料を含有するカラークリヤー塗膜を形成した光輝性塗装物が開示されている(例えば特許文献２参照)。   Further, when a coloring pigment and a Munsell hue ring are represented on a base material such as iron with the hue of the coloring pigment as a reference (0) and expressed as -50 to +50, the brightness having a hue of -50 to -25 or +25 to +50 A glittering coated product comprising a glittering base coating film containing a pigment and a color clear coating film containing a color pigment having a hue of -10 or more and +10 or less with respect to the hue of the glittering pigment Is disclosed (for example, see Patent Document 2).

特開２０００−１５３５６６号公報JP 2000-153666 A 特開２００１−２３２２８３号公報JP 2001-232283 A

近年、家電製品などの商品の差別化を図る上で、意匠性を高め、商品価値や訴求力の向上を図ることが不可欠となっている。このため、深みのある光輝感と鮮やかな色彩感を両立する必要性が高まっている。深みは、色の濃さと奥行き感の一方または両方を指し示す言葉であり、その両方を満たすことが求められている。深みのある光輝感を得る方法である上記特許文献１では、０．６ｍｍ以上の透明樹脂層が形成され、透明樹脂層が透明性を失うことのない程度に僅かに着色されても良いとされている。塗装に比べ、厚い透明樹脂層が形成されるため、奥行き感という意味での深みを得ることはできるが、色彩に関しては、例えば、Ｌ＊Ｃ＊ｈ＊表色系で表した場合の彩度ｈ＊が低く、淡い色味であることを意味しており、色の濃さという意味での深みと鮮やかな色彩感を得ることができないという問題点があった。 In recent years, in order to differentiate products such as home appliances, it has become indispensable to improve design and improve product value and appeal. For this reason, there is an increasing need to achieve both deep radiance and vivid color. Depth is a word that indicates one or both of color depth and depth, and is required to satisfy both. In Patent Document 1, which is a method for obtaining a deep glitter, a transparent resin layer of 0.6 mm or more is formed, and the transparent resin layer may be slightly colored to such an extent that the transparency is not lost. ing. Compared to painting, a thick transparent resin layer is formed, so that depth in the sense of depth can be obtained, but with regard to color, for example, saturation in the L * C * h * color system This means that h * is low and it means a light color, and there is a problem that a depth in terms of color depth and vivid color cannot be obtained.

彩度の向上と立体感のある光輝感の発現を可能とする特許文献２では、光輝性顔料と補色の関係にある着色顔料をベース塗料とカラークリヤー塗料に配合するため、射出成形により形成されたクリヤー層に比べ厚みが薄く、奥行き感という意味での深みが得られず、減法混色による無彩色化が生じ、鮮やかな色彩感を得ることができないという問題点があった。   In Patent Document 2, which enables the improvement of saturation and the expression of a three-dimensional brilliant feeling, it is formed by injection molding because a coloring pigment complementary to a brilliant pigment is blended with a base paint and a color clear paint. However, there is a problem in that the thickness is thinner than the clear layer and a depth in the sense of depth cannot be obtained, achromatic color is generated by subtractive color mixing, and a vivid color sense cannot be obtained.

この発明は、上記のような問題点を解決するためになされたもので、色の濃さと奥行き感の両方の意味での深みのある光輝感と鮮やかな色彩感を両立する熱可塑性樹脂の加飾成形体等を提供することを目的とする。   The present invention has been made to solve the above-described problems, and is an addition of a thermoplastic resin that achieves both a deep radiance and a vivid color in the sense of both color depth and depth. It aims at providing a decoration molding etc.

この発明は、光輝材および着色顔料を含む熱可塑性樹脂からなる基材と、前記基材の少なくとも一部に被覆され、着色顔料を含む透明な熱可塑性樹脂からなる被覆材と、を備え、Ｌ＊Ｃ＊ｈ＊表色系で表した場合の前記被覆材の色相角が、前記基材の色相角から±４５°の範囲にあり、前記被覆材の彩度が前記基材の彩度よりも高く、前記被覆材の明度が前記基材の明度よりも低いことを特徴とする加飾成形体等にある。 The present invention comprises a base material made of a thermoplastic resin containing a glittering material and a color pigment, and a coating material made of a transparent thermoplastic resin coated on at least a part of the base material and containing a color pigment, * C * h * The hue angle of the covering material when expressed in the color system is in a range of ± 45 ° from the hue angle of the base material, and the saturation of the covering material is greater than the saturation of the base material. And the brightness of the covering material is lower than the brightness of the base material.

この発明では、色の濃さと奥行き感の両方の意味での深みのある光輝感と鮮やかな色彩感を両立する熱可塑性樹脂の加飾成形体等を提供できる。   According to the present invention, it is possible to provide a decorative molded body of a thermoplastic resin that achieves both a bright sensation of vividness and a vivid color sensation in terms of both color depth and depth.

この発明の実施の形態１による加飾成形体の断面を示す模式図である。It is a schematic diagram which shows the cross section of the decorative molded body by Embodiment 1 of this invention. この発明の実施の形態２による加飾成形体の断面を示す模式図である。It is a schematic diagram which shows the cross section of the decorative molded body by Embodiment 2 of this invention. この発明における各実施例、比較例での結果を示す図である。It is a figure which shows the result in each Example and comparative example in this invention.

以下、この発明による加飾成形体等を各実施の形態に従って図面を用いて説明する。なお、各実施の形態において、同一もしくは相当部分は同一符号で示し、重複する説明は省略する。   Hereinafter, a decorative molded body and the like according to the present invention will be described with reference to the drawings according to each embodiment. In each embodiment, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.

実施の形態１．
図１は、この発明の実施の形態１における加飾成形体の断面を示す模式図である。図１において、加飾成形体１は、光輝材２および着色顔料３を含有する熱可塑性樹脂からなる基材４の少なくとも一部が、着色顔料５を含有する透明性の高い熱可塑性樹脂からなる被覆材６で被覆された構造を有している。 Embodiment 1 FIG.
FIG. 1 is a schematic diagram showing a cross section of a decorative molded body in Embodiment 1 of the present invention. In FIG. 1, a decorative molded body 1 is made of a highly transparent thermoplastic resin in which at least a part of a base material 4 made of a thermoplastic resin containing a glittering material 2 and a colored pigment 3 contains a colored pigment 5. It has a structure covered with a covering material 6.

光輝材２としては、二酸化チタンや酸化鉄などの金属酸化物で被覆された鱗片状のパール顔料、アルミ顔料、ガラスフレーク顔料、シリカフレーク顔料が挙げられる。
光輝材２の配合量は、基材４を構成する熱可塑性樹脂１００重量部に対し、０．１重量部以上１０重量部以下である。０．１重量部より少ないと、光輝感が不足する。１０重量部より多くしても輝度感の向上は認められないだけでなく、光輝材２の凝集により色ムラが発生する。 Examples of the bright material 2 include scaly pearl pigments coated with metal oxides such as titanium dioxide and iron oxide, aluminum pigments, glass flake pigments, and silica flake pigments.
The blending amount of the glitter material 2 is 0.1 parts by weight or more and 10 parts by weight or less with respect to 100 parts by weight of the thermoplastic resin constituting the base material 4. When the amount is less than 0.1 parts by weight, the glitter feeling is insufficient. When the amount is more than 10 parts by weight, not only the improvement in luminance is not recognized, but also color unevenness occurs due to the aggregation of the glitter material 2.

着色顔料３は、熱可塑性樹脂の着色に使用される顔料であれば特に限定されず、対象とすることができる。着色顔料３としては、酸化チタン系、酸化鉄系、複合酸化物系等の金属酸化物、それ以外であるクロム酸塩系、硫化物系、ケイ酸塩系、炭酸塩系、フェロシアン化物、カーボンブラック等の金属酸化物以外の無機顔料、溶性アゾ系、不溶性アゾ系(モノアゾ、ジスアゾ)等のアゾ化合物；縮合アゾ系金属錯塩アゾ系、ベンズイミダゾロン系、多環系であるフタロシアニン系、アントラキノン系、インジゴ系、ペリノン系、ペリレン系、キナクリドン系、イソインドリノン系、金属錯塩系、メチン・アゾメチン系、ジケトピロロピロール系からなる有機顔料、アゾ系、アントラキノン系、ペリレン系からなる染料が挙げられる。   The coloring pigment 3 is not particularly limited as long as it is a pigment used for coloring a thermoplastic resin, and can be a target. Examples of the color pigment 3 include metal oxides such as titanium oxide, iron oxide, and complex oxides, and other chromate, sulfide, silicate, carbonate, ferrocyanide, Inorganic pigments other than metal oxides such as carbon black, soluble azo compounds, insoluble azo compounds (monoazo, disazo) and other azo compounds; condensed azo metal complex azo compounds, benzimidazolone compounds, polycyclic phthalocyanine compounds, Dye made of anthraquinone, indigo, perinone, perylene, quinacridone, isoindolinone, metal complex, methine / azomethine, diketopyrrolopyrrole, azo, anthraquinone, perylene Is mentioned.

着色顔料３の配合量は、基材４を構成する熱可塑性樹脂１００重量部に対し、０．００１重量部以上１０重量部以下である。
０．００１重量部より少ないと、着色効果が得られない。
１０重量部より多いと、凝集により色ムラが発生する。 The blending amount of the color pigment 3 is 0.001 part by weight or more and 10 parts by weight or less with respect to 100 parts by weight of the thermoplastic resin constituting the substrate 4.
If the amount is less than 0.001 part by weight, the coloring effect cannot be obtained.
When the amount is more than 10 parts by weight, color unevenness occurs due to aggregation.

基材４の色相角(色相)(°)、明度(％)、彩度(％)(以下単位省略する場合あり)の調整は、光輝材２と着色顔料３の種類と量を変化させることにより行うことができる。なお、Ｌ＊Ｃ＊ｈ＊表色系で表した場合の光輝材２の色相角は、着色顔料３の色相角に対して、±１１０°以内である必要があり、±４５°以内であることが好ましい。光輝材２と着色顔料３の色相が近いほど、加飾成形体の色彩が鮮やかになり、光輝材２と着色顔料３の色相が補色に近くなると、減法混色による無彩色化により加飾成形体１の色彩が鮮やかでなくなるからである。 Adjustment of the hue angle (hue) (°), brightness (%), and saturation (%) of the base material 4 (hereinafter, units may be omitted) is to change the type and amount of the glitter material 2 and the color pigment 3. Can be performed. Note that the hue angle of the glittering material 2 when expressed in the L * C * h * color system must be within ± 110 ° with respect to the hue angle of the color pigment 3, and is within ± 45 °. It is preferable. The closer the hues of the glitter material 2 and the color pigment 3 are, the brighter the color of the decorative molded body becomes. This is because the color of 1 is not vivid.

基材４を構成する熱可塑性樹脂としては、ポリプロピレン、環状ポリオレフィン、ポリスチレン、アクリロニトリル−スチレン共重合体、アクリロニトリル−ブタジエン−スチレン共重合体(ＡＢＳ)、メチルメタクリレート−アクリロニトリル−ブタジエン−スチレン共重合体、ポリアミド、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリメチルメタアクリレート、ポリメチルペンテンが挙げられる。   Examples of the thermoplastic resin constituting the substrate 4 include polypropylene, cyclic polyolefin, polystyrene, acrylonitrile-styrene copolymer, acrylonitrile-butadiene-styrene copolymer (ABS), methyl methacrylate-acrylonitrile-butadiene-styrene copolymer, Examples include polyamide, polyethylene terephthalate, polybutylene terephthalate, polymethyl methacrylate, and polymethylpentene.

基材４の厚さは、０．５ｍｍ以上４ｍｍ以下であることが好ましい。
０．５ｍｍより薄いと射出成形による基材４の形成が困難になる。
４ｍｍより厚いと基材４の表面でのヒケ(凹み)の発生を抑制することが困難となり意匠性が低下する。 It is preferable that the thickness of the base material 4 is 0.5 mm or more and 4 mm or less.
If it is thinner than 0.5 mm, it becomes difficult to form the base material 4 by injection molding.
If it is thicker than 4 mm, it will be difficult to suppress the occurrence of sink marks (dents) on the surface of the substrate 4, and the design will be reduced.

着色顔料５は、着色顔料３と同様のものを用いることができる。
着色顔料５の配合量は、被覆材６の光線透過率が６０％以上となるようにすれば良い。
６０％より低いと基材４による光反射が少なくなるため深みのある光輝感を得られなくなるからである。 As the color pigment 5, the same pigment as the color pigment 3 can be used.
The blending amount of the color pigment 5 may be such that the light transmittance of the covering material 6 is 60% or more.
This is because if it is lower than 60%, light reflection by the substrate 4 is reduced, so that a deep glitter cannot be obtained.

被覆材６を構成する熱可塑性樹脂としては、被覆材６が無着色の状態で、光線透過率が７０％以上となることが望ましく、ランダムポリプロピレン、環状ポリオレフィン、汎用ポリスチレン、アクリロニトリル−スチレン共重合体、メチルメタクリレート−アクリロニトリル−ブタジエン−スチレン共重合体(ＭＡＢＳ)、非晶性ポリアミド、ポリエチレンテレフタレート、ポリメチルメタアクリレート、ポリメチルペンテンなど透明性の高い樹脂が挙げられる。   As the thermoplastic resin constituting the covering material 6, it is desirable that the light transmittance is 70% or more when the covering material 6 is uncolored. Random polypropylene, cyclic polyolefin, general-purpose polystyrene, acrylonitrile-styrene copolymer And highly transparent resins such as methyl methacrylate-acrylonitrile-butadiene-styrene copolymer (MABS), amorphous polyamide, polyethylene terephthalate, polymethyl methacrylate, and polymethylpentene.

被覆材６の厚さは、０．５ｍｍ以上４ｍｍ以下であることが好ましい。
０．５ｍｍより薄いと射出成形による被覆材６の形成が困難になる。
４ｍｍより厚いと被覆材６表面でのヒケ(凹み)や被覆材６内部でのボイドの発生を抑制することが困難となり意匠性が低下する。
ただし、部分的に薄くすることで深みに変化が生じ、意匠性が向上するので、被覆材６が端部等で部分的に成形が可能な範囲で０．５ｍｍより薄くなっても構わない。 The thickness of the covering material 6 is preferably 0.5 mm or more and 4 mm or less.
If the thickness is less than 0.5 mm, it is difficult to form the covering material 6 by injection molding.
If it is thicker than 4 mm, it will be difficult to suppress the occurrence of sink marks (dents) on the surface of the covering material 6 and voids inside the covering material 6, and the design will deteriorate.
However, since the depth is changed by partially thinning and the design property is improved, the covering material 6 may be thinner than 0.5 mm within a range that can be partially molded at the end or the like.

Ｌ＊Ｃ＊ｈ＊表色系で表した場合、
被覆材６の色相は、基材４の色相角から±４５°の範囲にある。
被覆材６の彩度は、基材４の彩度よりも高い。
基材４の彩度は、１０以上であることが好ましい。
１０より小さいと無彩色に近く、鮮やかな色彩感を得ることができない。
被覆材６の明度は、基材４の明度よりも低く、３０以上であることが好ましい。
３０より小さいと深みのある光輝感を得ることができない。 When expressed in the L * C * h * color system,
The hue of the covering material 6 is in the range of ± 45 ° from the hue angle of the substrate 4.
The saturation of the covering material 6 is higher than the saturation of the base material 4.
The saturation of the substrate 4 is preferably 10 or more.
If it is less than 10, it is close to an achromatic color and a vivid color feeling cannot be obtained.
The lightness of the covering material 6 is lower than the lightness of the base material 4 and is preferably 30 or more.
If it is less than 30, a deep glitter cannot be obtained.

基材４を構成する熱可塑性樹脂と被覆材６を構成する熱可塑性樹脂は、同種でない場合、基材４と被覆材６の密着性が低くなるため、同種であることが望ましい。同種でない場合、基材４と被覆材６の密着性を向上させるため、基材４に被覆材６との相溶化剤を配合することが好ましい。被覆材６に基材４との相溶化剤を配合すると、被覆材６の透明性が低下する。   When the thermoplastic resin constituting the base material 4 and the thermoplastic resin constituting the covering material 6 are not the same type, the adhesiveness between the base material 4 and the covering material 6 becomes low, and therefore the same kind is desirable. In the case of not being of the same type, in order to improve the adhesion between the base material 4 and the covering material 6, it is preferable to blend a compatibilizer with the covering material 6 into the base material 4. When a compatibilizer with the base material 4 is blended in the covering material 6, the transparency of the covering material 6 is lowered.

基材４と被覆材６を一体にする成形手段は、射出成形としては周知の２色成形(２色射出成形)である。基材４と被覆材６を接着するよりも、接着剤および接着工程が不要となる。基材４または被覆材６を射出成形し、インサート成形で一体化することも可能であるが、その場合には、インサートされる成形物とインサート成形で金型に充填される樹脂の成形収縮量の差で反り変形を生じ易いので、インサートされる成形物を予加熱することが好ましい。   The molding means for integrating the base material 4 and the covering material 6 is well-known two-color molding (two-color injection molding) as injection molding. Rather than bonding the base material 4 and the covering material 6, an adhesive and a bonding process are not necessary. The base material 4 or the covering material 6 can be injection-molded and integrated by insert molding, but in that case, the molding shrinkage of the molded product to be inserted and the resin filled in the mold by insert molding Therefore, it is preferable to preheat the molded article to be inserted.

以上のような構成とすることで、
被覆材６が透明で、被覆材６の色相角に近い色相角を有する基材４に含まれる光輝材２による光反射で深みのある光輝感が得られ、基材４と被覆材６の色相角が近く、被覆材６の彩度が基材４より高く、被覆材６の明度が基材４より低いことで鮮やかな色彩感を有する加飾成形体１を得ることができる。 With the above configuration,
The coating material 6 is transparent, and a deep glitter feeling is obtained by the light reflection by the glitter material 2 included in the substrate 4 having a hue angle close to the hue angle of the coating material 6, and the hues of the substrate 4 and the coating material 6 are obtained. Since the corners are close, the saturation of the covering material 6 is higher than that of the base material 4, and the lightness of the covering material 6 is lower than that of the base material 4, the decorative molded body 1 having a vivid color feeling can be obtained.

実施の形態２．
実施の形態１では、基材４と被覆材６の界面を平滑にするようにしたものであるが、次に基材４と被覆材６の界面の一部に凹凸を設けた場合の実施の形態を示す。図２は、この発明の実施の形態２における加飾成形体の断面を示す模式図である。図２において、基材４と被覆材６の界面の少なとも一部に凹凸を有する以外の構成は、図１に示す実施の形態１と同じである。 Embodiment 2. FIG.
In the first embodiment, the interface between the base material 4 and the covering material 6 is made smooth. Next, the embodiment in which unevenness is provided in a part of the interface between the base material 4 and the covering material 6 will be described. The form is shown. FIG. 2 is a schematic diagram showing a cross section of a decorative molded body in Embodiment 2 of the present invention. In FIG. 2, the configuration is the same as that of the first embodiment shown in FIG. 1 except that at least a part of the interface between the base material 4 and the covering material 6 has irregularities.

基材４と被覆材６の界面の一部の凹凸は、基材４を成形するための金型をエッチングなど周知の方法で処理して加工する(例えばエッチング液で金型の一部を溶解除去し形作る、または刃物で金型の一部を切削除去し形作る)ことで付与される。   Some unevenness at the interface between the base material 4 and the covering material 6 is processed by processing a mold for forming the base material 4 by a known method such as etching (for example, part of the mold is dissolved with an etching solution). Removed and shaped, or by cutting and removing a part of the mold with a blade).

凹凸のピッチは、１０μｍ以上２０００μｍ以下であることが好ましい。
１０μｍより小さいと光輝材２が凹凸に沿って配列し難くなり、不規則な光沢感を得られなくなるだけでなく、光輝材２が基材４の内部に埋没し、光輝材２による光輝感が得られなくなる。
２０００μｍより大きくなると、凹凸による光輝材の不規則な配列の度合いが減少し、不規則な光沢感が得られなくなる。
凹凸のピッチが１００μｍより大きい場合、凹部または凸部の一部が平滑であっても構わない。部分的に平滑な面があることで、光輝材の不規則な配列が断続的になり、光輝材２の連続的な不規則な配列の場合とは異なる光輝感を得ることができる。 The uneven pitch is preferably 10 μm or more and 2000 μm or less.
If it is smaller than 10 μm, it is difficult for the glittering material 2 to be arranged along the unevenness and the irregular glossiness cannot be obtained. It can no longer be obtained.
When it is larger than 2000 μm, the degree of irregular arrangement of the glitter material due to the unevenness decreases, and irregular glossiness cannot be obtained.
When the uneven pitch is larger than 100 μm, a part of the concave portion or the convex portion may be smooth. Due to the partially smooth surface, the irregular arrangement of the glitter material becomes intermittent, and a glitter feeling different from the case of the continuous irregular arrangement of the glitter material 2 can be obtained.

以上のような構成とすることで、実施の形態１での効果に加え、不規則な光輝感を有する加飾成形体１を得ることができる。   By setting it as the above structures, in addition to the effect in Embodiment 1, the decorative molded body 1 which has irregular radiance can be obtained.

以下、実施例により本発明を具体的に説明する。図３は、この発明における各実施例、比較例での結果を示す図である。なお、色相角の単位は(°)、明度、彩度の単位はそれぞれ(％)である。   Hereinafter, the present invention will be described specifically by way of examples. FIG. 3 is a diagram showing the results of each example and comparative example in the present invention. The unit of hue angle is (°), and the unit of brightness and saturation is (%).

実施例１．
基材４を構成する熱可塑性樹脂としてＡＢＳ樹脂を用い、被覆材６を構成する熱可塑性樹脂としてＭＡＢＳ樹脂を用いた。２軸押出機を用い、基材４および被覆材６の色相角、彩度および明度が図３に示す値になるように光輝材２、着色顔料３および着色顔料５を混練し、着色ペレットを作製した。
次に、２色射出成形機を用い、基材４用の着色ペレットで１００ｍｍ×１００ｍｍ×１ｍｍの平板を成形し、続いて、平板の片面に積層するように被覆材６用の着色ペレットで１００ｍｍ×１００ｍｍ×１ｍｍの平板を成形し、１００ｍｍ×１００ｍｍ×２ｍｍの加飾成形体１を作製した。 Example 1.
ABS resin was used as the thermoplastic resin constituting the base material 4, and MABS resin was used as the thermoplastic resin constituting the coating material 6. Using a twin-screw extruder, the glitter material 2, the color pigment 3 and the color pigment 5 are kneaded so that the hue angle, saturation and brightness of the base material 4 and the coating material 6 become the values shown in FIG. Produced.
Next, using a two-color injection molding machine, a flat plate of 100 mm × 100 mm × 1 mm is formed with colored pellets for the base material 4, and subsequently, 100 mm with colored pellets for the covering material 6 so as to be laminated on one side of the flat plate. A flat plate of × 100 mm × 1 mm was molded to produce a decorative molded body 1 of 100 mm × 100 mm × 2 mm.

実施例２．
実施例１から図３の色相角に示す値になるように変えた以外は実施例１と同様にし、加飾成形体１を作製した。 Example 2
A decorative molded body 1 was produced in the same manner as in Example 1 except that Example 1 was changed to the value shown in the hue angle in FIG.

実施例３．
実施例１から基材４の色相角、被覆材６の色相角および被覆材６の明度を図３に示す値になるように変えた。さらに、２色成形を用いて基材４用の着色ペレットで、
１００ｍｍ×１００ｍｍ×１ｍｍの平板の片面中央に５０ｍｍ×５０ｍｍの領域に平均ピッチ６０μｍ、平均深さ５０μｍの凹凸を有する平板を成形し、
続いて、凹凸のある面に積層するように被覆材６用の着色ペレットで１００ｍｍ×１００ｍｍ×１ｍｍの平板を成形し、基材４と被覆材６の界面の一部に凹凸を有する１００ｍｍ×１００ｍｍ×２ｍｍの加飾成形体１を作製した。 Example 3
From Example 1 the hue angle of the substrate 4, the hue angle of the coating material 6, and the brightness of the coating material 6 were changed to the values shown in FIG. 3. In addition, with colored pellets for the substrate 4 using two-color molding,
A flat plate having irregularities with an average pitch of 60 μm and an average depth of 50 μm in an area of 50 mm × 50 mm in the center of one surface of a flat plate of 100 mm × 100 mm × 1 mm,
Subsequently, a flat plate of 100 mm × 100 mm × 1 mm is formed with the colored pellets for the covering material 6 so as to be laminated on the uneven surface, and 100 mm × 100 mm having unevenness at a part of the interface between the base material 4 and the covering material 6. A x2 mm decorative molded body 1 was produced.

実施例４．
実施例３から基材４の色相角、基材４の明度および被覆材６の色相角を図３に示す値になるように変えた以外は、実施例３と同様にし、加飾成形体１を作製した。 Example 4
The decorative molded body 1 is the same as in Example 3 except that the hue angle of the base material 4, the brightness of the base material 4, and the hue angle of the covering material 6 are changed to the values shown in FIG. Was made.

比較例１〜６．
実施例１から被覆材６の色相角(比較例１，４)、被覆材６の彩度(比較例２，５)または被覆材６の明度(比較例３，６)を図３に示す値になるように変えた以外は、実施例１と同様にし、加飾成形体１を作製した。 Comparative Examples 1-6.
Values of the hue angle (comparative examples 1 and 4) of the covering material 6 from Example 1 and the saturation (comparative examples 2 and 5) of the covering material 6 or the brightness (comparative examples 3 and 6) of the covering material 6 are shown in FIG. A decorative molded body 1 was produced in the same manner as in Example 1 except that it was changed.

「深みのある光輝感」、「鮮やかな色彩感」および「変化のある光輝感」について目視で評価し、それぞれを確保している場合は「○」、確保していない場合は「×」として図３に示す。この発明において、「深みのある光輝感」と「鮮やかな色彩感」を両立するための基材４および被覆材６の色相角、彩度および明度を満たしている実施例１〜４については、「深みのある光輝感」と「鮮やかな色彩感」を両立することが可能であった。これに加え、基材４と被覆材６の界面に凹凸を設けた実施例３および実施例４については、「変化のある光輝感」を得ることが可能であった。この発明において、「深みのある光輝感」と「鮮やかな色彩感」を両立するための条件を満たしていない比較例１〜６については、「深みのある光輝感」と「鮮やかな色彩感」を両立することができなかった。   Visual evaluation of “deep brilliant feeling”, “brilliant color sensation”, and “changing radiance sensation”, “○” if each is secured, “x” otherwise. As shown in FIG. In the present invention, Examples 1 to 4 satisfying the hue angle, saturation, and brightness of the base material 4 and the covering material 6 for achieving both “deep glitter” and “brilliant color” It was possible to achieve both “deep radiance” and “brilliant color”. In addition to this, with respect to Example 3 and Example 4 in which the unevenness was provided at the interface between the base material 4 and the covering material 6, it was possible to obtain “changed glitter”. In the present invention, for Comparative Examples 1 to 6 that do not satisfy the conditions for achieving both “deep glitter” and “brilliant color”, “deep glitter” and “brilliant color” It was not possible to achieve both.

１ 加飾成形体、２ 光輝材、３，５ 着色顔料、４ 基材、６ 被覆材。   DESCRIPTION OF SYMBOLS 1 Decorated molded object, 2 Bright material, 3,5 Color pigment, 4 Base material, 6 Coating | covering material.

Claims (5)

光輝材および着色顔料を含む熱可塑性樹脂からなる基材と、
前記基材の少なくとも一部に被覆され、着色顔料を含む透明な熱可塑性樹脂からなる被覆材と、
を備え、
Ｌ＊Ｃ＊ｈ＊表色系で表した場合の前記被覆材の色相角が、前記基材の色相角から±４５°の範囲にあり、前記被覆材の彩度が前記基材の彩度よりも高く、前記被覆材の明度が前記基材の明度よりも低いことを特徴とする加飾成形体。 A substrate made of a thermoplastic resin containing a glittering material and a coloring pigment;
A coating material made of a transparent thermoplastic resin coated with at least a part of the base material and containing a color pigment;
With
The hue angle of the coating material when expressed in the L * C * h * color system is in a range of ± 45 ° from the hue angle of the substrate, and the saturation of the coating material is the saturation of the substrate. The decorative molded body is characterized in that the brightness of the covering material is higher than the brightness of the base material. 前記被覆材の明度が３０％以上であることを特徴とする請求項１記載の加飾成形体。   The decorative molded body according to claim 1, wherein the brightness of the covering material is 30% or more. 前記基材と前記被覆材の少なくとも一部に凹凸を設けたことを特徴とする請求項１または２記載の加飾成形体。   The decorative molded body according to claim 1 or 2, wherein unevenness is provided on at least a part of the base material and the covering material. 前記基材と前記被覆材が２色射出成形で形成されたことを特徴とする請求項１から３までのいずれか１項記載の加飾成形体。   The decorative molded body according to any one of claims 1 to 3, wherein the base material and the covering material are formed by two-color injection molding. 光輝材および着色顔料を含む熱可塑性樹脂からなる基材と、着色顔料を含む透明な熱可塑性樹脂からなる被覆材とを、前記基材の少なくとも一部に前記被覆材が被覆され、Ｌ＊Ｃ＊ｈ＊表色系で表した場合の前記被覆材の色相角が前記基材の色相角から±４５°の範囲にあり、前記被覆材の彩度が前記基材の彩度よりも高く、前記被覆材の明度が前記基材の明度よりも低くなるように、２色射出成形で形成することを特徴とする加飾成形体の製造方法。 A base material made of a thermoplastic resin containing a glittering material and a color pigment, and a coating material made of a transparent thermoplastic resin containing a color pigment, and at least a part of the base material is coated with the coating material, and L * C * H * The hue angle of the coating material when expressed in the color system is in a range of ± 45 ° from the hue angle of the substrate, and the saturation of the coating material is higher than the saturation of the substrate. A method for producing a decorative molded body, wherein the coating material is formed by two-color injection molding so that the brightness of the covering material is lower than the brightness of the substrate.
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