JP5152384B2 - Decorative sheet for injection molding, decorative molded product, and injection molding simultaneous decoration method - Google Patents

Decorative sheet for injection molding, decorative molded product, and injection molding simultaneous decoration method Download PDF

Info

Publication number
JP5152384B2
JP5152384B2 JP2011208412A JP2011208412A JP5152384B2 JP 5152384 B2 JP5152384 B2 JP 5152384B2 JP 2011208412 A JP2011208412 A JP 2011208412A JP 2011208412 A JP2011208412 A JP 2011208412A JP 5152384 B2 JP5152384 B2 JP 5152384B2
Authority
JP
Japan
Prior art keywords
sheet
transparent resin
decorative
injection molding
resin base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2011208412A
Other languages
Japanese (ja)
Other versions
JP2012045938A (en
Inventor
和宏 須賀
義幸 名木
浩之 阿竹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP2011208412A priority Critical patent/JP5152384B2/en
Publication of JP2012045938A publication Critical patent/JP2012045938A/en
Application granted granted Critical
Publication of JP5152384B2 publication Critical patent/JP5152384B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Description

本発明は、凹凸模様の立体意匠感を有する射出成形用加飾シート（以下、加飾シートと呼称することもあります）と、それを用いた加飾成形品、及び該加飾成形品を成形する射出成形同時加飾方法に関する。 The present invention relates to a decorative sheet for injection molding (hereinafter also referred to as a decorative sheet) having a three-dimensional design feeling of a concavo-convex pattern, a decorative molded product using the same, and molding the decorative molded product The present invention relates to an injection molding simultaneous decoration method.

被着体として樹脂成形物の表面に加飾シートを積層一体化することで加飾した加飾成形品が各種用途で使用されている。この様な加飾成形品を得る代表的な方法に、樹脂成形物の成形と同時に加飾シートを積層一体化する方法として射出成形同時加飾方法がある（特許文献１、特許文献２、等参照）。   A decorative molded product decorated as an adherend by laminating and integrating decorative sheets on the surface of a resin molded product is used in various applications. As a typical method for obtaining such a decorative molded product, there is an injection molding simultaneous decorating method as a method of laminating and integrating decorative sheets simultaneously with the molding of a resin molded product (Patent Document 1, Patent Document 2, etc.). reference).

また、射出成形同時加飾方法において、加飾成形品の表面に例えば木目導管溝等の凹凸模様を設けて立体意匠感を付与する場合には、例えば、次の（１）〜（４）の様にしていた。
（１）射出成形型のキャビティ面に賦形用の凹凸模様を設けておいて、射出成形後の加飾成形品の表面（加飾シート表面）に凹凸模様を賦形する。
（２）加飾シートの基材シートにアクリル系樹脂等の熱可塑性樹脂の樹脂シートを用いて、該基材シートに熱圧を加えるエンボス加工を施して凹凸模様を賦形しておいた加飾シートを使用する。
（３）スクリーン印刷等による印刷で凹凸模様を表現する。
（４）紫外線硬化性樹脂等の硬化性樹脂のインキによる盛上げ印刷によって、加飾シートに凹凸模様を付与しておく。例えば、電離放射線硬化性樹脂インキを、ロール凹版（賦形版、成形版胴等とも呼ぶ）の少なくとも凹部に充填させると共に該インキに樹脂シートを接触させ、該インキが樹脂シートとロール凹版との間に保持されている状態で電離放射線を照射して該インキを硬化させた後、樹脂シートをロール凹版から剥離する事で、樹脂シート上に該インキの硬化物からなる凹凸模様を付与する（特許文献３、特許文献４、特許文献５、特許文献６、等参照）。 Moreover, in the simultaneous injection molding decoration method, for example, in the case of providing a three-dimensional design feeling by providing an uneven pattern such as a wood grain conduit groove on the surface of a decorative molded product, for example, the following (1) to (4) I did it.
(1) A concavo-convex pattern for shaping is provided on the cavity surface of the injection mold, and the concavo-convex pattern is formed on the surface of the decorative molded product after injection molding (the surface of the decorative sheet).
(2) Using a resin sheet of a thermoplastic resin such as an acrylic resin for the base sheet of the decorative sheet, embossing to apply heat pressure to the base sheet and shaping the concavo-convex pattern Use a decorative sheet.
(3) The uneven pattern is expressed by screen printing or the like.
(4) A concavo-convex pattern is imparted to the decorative sheet by up-printing with an ink of a curable resin such as an ultraviolet curable resin. For example, an ionizing radiation curable resin ink is filled in at least a concave portion of a roll intaglio (also called a shaping plate, a molding plate cylinder, etc.) and a resin sheet is brought into contact with the ink. After the ink is cured by irradiating with ionizing radiation while being held in between, the resin sheet is peeled off from the roll intaglio to give an uneven pattern made of a cured product of the ink on the resin sheet ( (See Patent Literature 3, Patent Literature 4, Patent Literature 5, Patent Literature 6, etc.).

特公昭５０−１９１３２号公報Japanese Patent Publication No. 50-19132 特公昭４３−２７４８８号公報Japanese Patent Publication No.43-27488 特開昭５７−８７３１８号公報JP-A-57-87318 特公昭５７−２２７５５号公報Japanese Patent Publication No.57-22755 特公昭６３−５００６６号公報Japanese Examined Patent Publication No. 63-50066 特開平７−３２４７６号公報JP 7-32476 A

しかしながら、上記（１）〜（４）の如き方法では、次の様な欠点があった。すなわち、（１）の成形品の射出成形時にエンボスを施す方法では、エンボス面が成形品表面に限定されてしまう。従って、内部に凹凸模様を付与できない。しかも、射出成形型のキャビティ面を賦形型として凹凸面にしておく必要があることから、凹凸模様の意匠を変更するときは、成形品の形状が同じであっても、高価な射出成形型ごと交換しなければならず、凹凸模様を自由に変えることが出来なかった。
次に、（２）の基材シートに熱可塑性樹脂シートを用いる場合では、成形品の立体面を加飾する為に、射出成形工程に先立ち真空成形工程にて加飾シートを予備成形する時の熱によって、エンボスされた凹凸模様の凹凸形状が戻ってしまうという問題があった。
次に、（３）のスクリーン印刷等の印刷手法によって凹凸模様を賦形する場合では、インキの転移量に限度があり且つそれが少ない為に、エンボスによる凹凸模様ほど立体感が得られない。
そして、（４）のロール凹版等を使用した紫外線硬化性樹脂等による盛上げ印刷による場合では、上記（３）の印刷手法に比べて、より立体感に優れた凹凸模様を賦形できる。しかし、一般的に樹脂シート側から紫外線を照射して凹凸模様を硬化形成する関係上、樹脂シートに透明シートを使用しないと凹凸模様を付与できない。また、加飾シートに通常の印刷による装飾層を形成する場合、印刷よりも前に凹凸模様を付与すると、その凹凸模様によって印刷時に印刷抜けという印刷不良が発生し易かった。 However, the methods (1) to (4) have the following drawbacks. That is, in the method (1) of embossing at the time of injection molding of the molded product, the embossed surface is limited to the surface of the molded product. Therefore, it is not possible to give a concavo-convex pattern inside. Moreover, since it is necessary to make the cavity surface of the injection mold as a shaping mold, it is necessary to make it an uneven surface, so when changing the design of the uneven pattern, even if the shape of the molded product is the same, an expensive injection mold Everything had to be replaced, and the uneven pattern could not be changed freely.
Next, when a thermoplastic resin sheet is used for the base material sheet of (2), when decorating the decorative sheet in the vacuum forming process prior to the injection molding process, in order to decorate the three-dimensional surface of the molded product There was a problem that the uneven shape of the embossed uneven pattern was restored by the heat.
Next, in the case of forming a concavo-convex pattern by a printing method such as (3) screen printing, there is a limit to the amount of ink transferred, and since it is small, the three-dimensional effect cannot be obtained as much as the concavo-convex pattern by embossing.
And in the case of the build-up printing by the ultraviolet curable resin etc. which uses the roll intaglio etc. of (4), the uneven | corrugated pattern excellent in the three-dimensional effect can be shaped compared with the printing method of said (3). However, in general, in order to cure and form an uneven pattern by irradiating ultraviolet rays from the resin sheet side, the uneven pattern cannot be imparted unless a transparent sheet is used for the resin sheet. Moreover, when forming the decoration layer by normal printing on a decorating sheet, if a concavo-convex pattern was given before printing, the concavo-convex pattern was liable to cause a printing failure such as print omission during printing.

すなわち、本発明の課題は、凹凸模様の立体意匠感を有する加飾シートを提供することである。更に好適には、加飾シートを真空成形等で熱成形しても、シート表面及び内面に設けた凹凸で表現される凹凸模様の立体意匠感が消失し難い加飾シートを提供することである。また、この様な加飾シートを用いた加飾成形品を提供することである。また、この様な加飾成形品が容易に得られる射出成形同時加飾方法を提供することであり、その真空成形による予備成形、更には射出成形後に於いても、加飾シート段階の凹凸模様の立体意匠感が消失しない加飾方法を提供することである。   That is, the subject of this invention is providing the decorating sheet which has the three-dimensional design feeling of an uneven | corrugated pattern. More preferably, even if the decorative sheet is thermoformed by vacuum forming or the like, it is to provide a decorative sheet in which the three-dimensional design feeling of the concavo-convex pattern expressed by the concavo-convex provided on the sheet surface and the inner surface is not easily lost. . Moreover, it is providing the decorative molded product using such a decorating sheet. Moreover, it is to provide an injection molding simultaneous decoration method by which such a decorative molded product can be easily obtained. Preliminary molding by the vacuum molding, and further, the uneven pattern at the decorative sheet stage even after the injection molding. It is to provide a decoration method in which the three-dimensional design feeling is not lost.

上記課題を解決すべく、本発明の射出成形用加飾シートは、透明樹脂基材シートの裏面に光輝性層を積層し、かつ最裏面に射出成形樹脂と射出樹脂温度で接着可能な接着剤層を設けて成り、透明樹脂基材シートの表面は、周囲に比べて相対的に光沢の高い高光沢領域と周囲に比べて相対的に光沢の低い低光沢領域とに区画され、しかも、透明樹脂基材シートの厚みは、高光沢領域に於いては相対的に厚く、且つ低光沢領域に於いて相対的に薄く形成されて成り、高光沢領域及び低光沢領域に対応した凹凸模様を視覚的に発現させている構成とした。 In order to solve the above-mentioned problems, the decorative sheet for injection molding of the present invention is an adhesive capable of laminating a glittering layer on the back surface of a transparent resin base material sheet and capable of being bonded to the injection molding resin and the injection resin temperature on the back surface. The surface of the transparent resin base sheet is divided into a high-gloss area having a relatively high gloss compared to the surrounding area and a low-gloss area having a relatively low gloss compared to the surrounding area, and is transparent. The thickness of the resin base sheet is relatively thick in the high gloss area and relatively thin in the low gloss area, and the uneven pattern corresponding to the high gloss area and the low gloss area is visually recognized. It was set as the structure made to express.

この様な構成とすることで、（低光沢とする為に表面に微小凹凸があっても該微小凹凸よりも大きな凹凸は無い様な）平坦な表面でも、表面の高低光沢領域と、それと位置同調したシート内部の凹凸とによって、凹凸模様を視覚的に感じさせる立体意匠感が得られる。   By adopting such a configuration, even on a flat surface (even if there are micro unevenness on the surface in order to make it low gloss, there is no unevenness larger than the micro unevenness), the high and low gloss area on the surface and its position A three-dimensional design feeling that visually feels the concavo-convex pattern is obtained by the synchronized irregularities inside the sheet.

また、本発明の射出成形用加飾シートは、上記構成に於いて、透明樹脂基材シートと光輝性層との間に、光輝性層の光輝性を完全には隠蔽しない程度の装飾層を有する構成とした。この様な構成とすることで、より高意匠にできる。 Moreover, the decorative sheet for injection molding of the present invention has a decorative layer in the above-described configuration, which does not completely hide the glitter of the glitter layer between the transparent resin base sheet and the glitter layer. It was set as the structure which has. By adopting such a configuration, a higher design can be achieved.

また、加飾シートは、上記いずれかの構成に於いて、光輝性層の裏面に、熱可塑性樹脂から成る裏打シートを積層して成る構成とすることが望ましい。この様な構成とすることで、用途、成形性、意匠性等の点で、裏打シート無しでは加飾シート全体としてのシート総厚が不十分である場合に、この裏打シートで加飾シート総厚を賄うことができる。また、加飾シート裏面側の層が、加飾シートの被着体である樹脂成形物等との密着性が不十分である場合に、該樹脂成形物等の被着体との密着性の良い樹脂で裏打シートを構成して、密着性の向上もできる。 In any one of the above-described configurations, the decorative sheet is desirably formed by laminating a backing sheet made of a thermoplastic resin on the back surface of the glittering layer. By adopting such a configuration, if the total thickness of the decorative sheet as a whole is insufficient without a backing sheet in terms of application, formability, designability, etc., the decorative sheet I can cover the thickness. In addition, when the layer on the back side of the decorative sheet has insufficient adhesion to the resin molded article that is the adherend of the decorative sheet, the adhesion of the adherend to the resin molded article or the like The backing sheet can be made of a good resin to improve adhesion.

また、加飾シートは、上記いずれかの構成に於いて、透明樹脂基材シートの裏面に於いて、該基材シート表面の高光沢領域に対応した部分が、裏面方向に向かって凸になっている構成とすることが望ましい。この構成は、透明樹脂基材シートの厚みを表面の高光沢領域を低光沢領域よりも相対的に厚くする為の、具体的構成の一例を明示した構成である。この様な構成とすることで、高光沢領域の表面部分を裏面方向に向かって凸、つまり表面がシート外側に向かって凹の形状でも、視覚的に凹凸模様を感じさせる立体意匠感が得られる。 Further, in any of the above-described configurations, the decorative sheet has a portion corresponding to the high gloss region on the surface of the transparent resin base sheet that is convex toward the back surface. It is desirable to have a configuration. This configuration clearly shows an example of a specific configuration for making the thickness of the transparent resin base sheet relatively thicker in the high-gloss area on the surface than in the low-gloss area. By adopting such a configuration, even if the surface portion of the high-gloss area is convex toward the back surface, that is, the surface is concave toward the outside of the sheet, a three-dimensional design feeling that visually feels an uneven pattern can be obtained. .

また、加飾シートは、上記いずれかの構成に於いて、透明樹脂基材シートが、表面側に位置する第１透明樹脂基材シート、及び裏面側に位置する第２透明樹脂基材シートの２層の積層体から成り、第１透明樹脂基材シートは結晶性樹脂から成り、且つ第２透明樹脂基材シートは非結晶性樹脂から成り、第１透明樹脂基材シートの融点は第２透明樹脂基材シートの軟化温度よりも大である構成とすることが望ましい。この様な構成とすることで、射出成形同時加飾法等、加飾シートが加熱成形される用途では、表面の微小凹凸の有無として付与される高光沢領域及び低光沢領域の加熱成形時の消失防止と、加飾シートの成形性（乃至は形状追従性）と言う相矛盾する両条件を容易に両立させることができる。それは、微小凹凸を含めた透明樹脂基材シートの凹凸をエンボス加工で付与したものとする場合に、エンボス加工は第１透明樹脂基材シートの融点以上の温度で行い、そして、加飾シートを真空成形等の加熱成形する用途に適用する際は、該融点未満且つ第２透明樹脂基材シートの軟化温度以上の温度で行うことで、該凹凸の維持と成形性を両立できるからである。その結果、射出成形同時加飾用途に対しては、加飾シートの真空成形工程後、更には射出成形工程後であっても、該凹凸が関与する凹凸模様の視覚的な立体意匠感が消失しない加飾シートとなる。 Moreover, the decorative sheet is a first transparent resin substrate sheet positioned on the front surface side and a second transparent resin substrate sheet positioned on the rear surface side in any one of the configurations described above. The first transparent resin base sheet is made of a crystalline resin, the second transparent resin base sheet is made of an amorphous resin, and the melting point of the first transparent resin base sheet is second. It is desirable that the temperature be higher than the softening temperature of the transparent resin base sheet. By adopting such a configuration, in applications where the decorative sheet is thermoformed, such as the simultaneous injection molding decoration method, the high gloss region and the low gloss region that are given as the presence or absence of minute irregularities on the surface are subjected to heat molding. Both contradictory conditions of disappearance prevention and formability (or shape followability) of the decorative sheet can be easily achieved. The embossing is performed at a temperature equal to or higher than the melting point of the first transparent resin base material sheet, when the unevenness of the transparent resin base material sheet including minute unevenness is given by embossing, and the decorative sheet is This is because, when applied to a heat forming application such as vacuum forming, the maintenance of the unevenness and the moldability can be achieved at a temperature lower than the melting point and higher than the softening temperature of the second transparent resin base sheet. As a result, the visual three-dimensional design of the concavo-convex pattern involving the unevenness disappears even after the vacuum forming process of the decorative sheet and further after the injection molding process for the simultaneous injection molding decoration application. Not a decorative sheet.

そして、本発明の加飾成形品は、樹脂成形物表面に、上記いずれかの構成の加飾シートが、その透明樹脂基材シート側が表面側に位置する様にして積層されて成る構成とした。この様な構成とすることで、樹脂成形物を被着体とした加飾成形品の夫々の構成に於いて、凹凸模様を視覚的に感じさせる立体意匠感が得られる等の、上記各々の効果が得られる。   The decorative molded product of the present invention has a configuration in which the decorative sheet having any one of the above-described structures is laminated on the surface of the resin molded product so that the transparent resin base sheet side is positioned on the surface side. . By adopting such a configuration, in each configuration of the decorative molded product with the resin molded product as an adherend, each of the above-mentioned three-dimensional design feelings that make the uneven pattern visually felt can be obtained. An effect is obtained.

また、加飾成形品は、上記構成に於いて、加飾シート部分の透明樹脂基材シートの高光沢領域に於いて、（該透明樹脂基材シートの）裏面側は裏面方向に向かって凸になっており、且つ表面側は平坦面になっている構成とすることが望ましい。この構成は、加飾シート部分に於いてその透明樹脂基材シートの厚みを表面の高光沢領域を低光沢領域よりも相対的に厚くする為の、具体的構成の一例を明示した構成である。この構成では、高光沢領域の表面部分が平坦な形状にて、凹凸模様を視覚的に感じさせる立体意匠感が得られる。 In the decorative molded product , the back side (of the transparent resin base sheet) is convex in the back direction in the high gloss region of the transparent resin base sheet in the decorative sheet portion. It is desirable that the surface side is a flat surface. This configuration clearly shows an example of a specific configuration for making the thickness of the transparent resin base sheet in the decorative sheet portion relatively thicker in the high-gloss area on the surface than in the low-gloss area. . With this configuration, the surface portion of the high gloss region has a flat shape, and a three-dimensional design feeling that makes the concavo-convex pattern feel visually is obtained.

或いはまた、加飾成形品は、前記構成に於いて、加飾シート部分の透明樹脂基材シートの高光沢領域に於いて、（該透明樹脂基材シートの）裏面側は裏面方向に向かって凸になっており、且つ表面側は表面方向に向かって凹になっている構成とすることが望ましい。この構成も、加飾シート部分に於いてその透明樹脂基材シートの厚みを表面の高光沢領域を低光沢領域よりも相対的に厚くする為の、具体的構成の一例を明示した構成である。この様な構成では、高光沢領域の表面部分がシート外側に向かって現実に凹没した形状と、視覚効果による擬似凹凸感とが相俟って、凹凸模様を視覚的に感じさせる立体意匠感が得られる。 Alternatively, the decorative molded product has the above-described configuration, and the back surface side (of the transparent resin base material sheet) is directed toward the back surface in the high gloss region of the transparent resin base material sheet of the decorative sheet portion. It is desirable to have a configuration that is convex and that the surface side is concave toward the surface direction. This configuration is also a configuration that clearly shows an example of a specific configuration for making the thickness of the transparent resin substrate sheet in the decorative sheet portion relatively thicker in the high-gloss area on the surface than in the low-gloss area. . In such a configuration, the shape of the surface area of the high-gloss area that is actually recessed toward the outside of the sheet, combined with the quasi-concave feeling due to the visual effect, creates a three-dimensional design feeling that makes the concavo-convex pattern feel visually. Is obtained.

そして、本発明の射出成形同時加飾方法は、射出成形用加飾シートを用いて、真空成形工程と、射出成形工程とを経て、樹脂成形物の成形と同時にその表面に射出成形用加飾シートを一体化して、樹脂成形物を加飾成形品とする射出成形同時加飾方法に於いて、少なくとも、
（Ａ）透明樹脂基材シートと光輝性層とを含む積層体を加熱し、エンボス加工により、透明樹脂基材シート表面の高光沢領域及び低光沢領域、並びに該高光沢領域と低光沢領域とに対応した透明樹脂基材シートの厚みの厚薄を形成することによって、前記いずれかの構成の加飾シートを製造する、シート作成工程、
（Ｂ）該射出成形用加飾シートを加熱軟化させて、所望の成形品形状に対応する形状に真空成形する、真空成形工程、
（Ｃ）真空成形された射出成形用加飾シートを、その表面側が射出成形型表面と対面する様にして、型締めした射出成形型内に装填された状態で、射出成形型内に流動状態の樹脂を射出充填して、該樹脂を固化させて、樹脂成形物表面に加飾シートを積層一体化して、前記いずれかの構成の加飾成形品を得る、射出成形工程、の各工程を此の順に行なう様にした。 Then, an injection-mold decorating method of the present invention, by using the decorative sheet for injection molding, and vacuum forming process, through the injection molding process, decorative for simultaneously injection molded on the surface and the molding of the resin molded product In the injection molding simultaneous decorating method in which the sheet is integrated and the resin molded product is a decorative molded product, at least,
(A) A laminated body including a transparent resin substrate sheet and a glitter layer is heated, and embossing is performed to obtain a high gloss region and a low gloss region on the surface of the transparent resin substrate sheet, and the high gloss region and the low gloss region. To produce a decorative sheet of any of the above-mentioned structures by forming a thin thickness of the transparent resin substrate sheet corresponding to
(B) by heating and softening the decorative sheet for injection molding, vacuum forming into a shape corresponding to the desired molded article shape, vacuum forming process,
(C) The injection molded decorative sheet that has been vacuum-formed is loaded in the injection mold that has been clamped so that the surface side faces the surface of the injection mold, and is fluidized in the injection mold. Each step of the injection molding step, in which the resin is injected and filled, the resin is solidified, and the decorative sheet is laminated and integrated on the surface of the resin molded product to obtain a decorative molded product of any one of the above-described configurations. I did it in this order.

この様な構成の加飾方法とすることで、凹凸模様を視覚的に感じさせる立体意匠感を付与できる等の前記各加飾シートのそれぞれの効果が、射出成形同時加飾方法に於いて享受でき、得られる加飾成形品に於いて該効果が享受できる。   By adopting such a decoration method, the effects of each of the decoration sheets, such as the ability to give a three-dimensional design that makes the uneven pattern visually feel, can be enjoyed in the injection molding simultaneous decoration method. The effect can be enjoyed in the decorative molded product obtained.

また、射出成形同時加飾方法は、上記構成の加飾方法に於いて、工程（Ａ）のシート作成工程に於いて、加飾シートとして、透明樹脂基材シートが表面側に位置する第１透明樹脂基材シートと裏面側に位置する第２透明樹脂基材シートとの２層の積層体から成る前記加飾シートを用い、その第１透明樹脂基材シートの融点以上の温度でエンボス加工を行ない、工程（Ｂ）の真空成形工程に於いて、第２透明樹脂基材シートの軟化温度以上であり且つ第１透明樹脂基材シートの融点未満の温度で真空成形する様にすることが望ましい。
Moreover, the injection molding simultaneous decorating method is the first decorating method in which the transparent resin base sheet is positioned on the surface side as the decorating sheet in the sheet creating step of the step (A) in the decorating method of the above configuration. Embossing at a temperature equal to or higher than the melting point of the first transparent resin base sheet, using the decorative sheet composed of a two-layer laminate of the transparent resin base sheet and the second transparent resin base sheet located on the back side the performed, in the vacuum forming process of step (B), be in such vacuum forming the second is a transparent resin substrate sheet softening temperature above and a temperature below the melting point of the first transparent resin substrate sheet Desirable .

この様な構成の加飾方法とすることで、透明樹脂基材シートが特定の２層積層体からなる前記加飾シートによる効果を、確実に射出成形同時加飾方法（及びそれによって得られる加飾成形品）に於いて享受できる。従って、真空成形工程、更には射出成形工程後でも、加飾シート段階での凹凸模様の視覚的な立体意匠感が消失しない加飾成形品が確実に得られる。   By setting it as the decorating method of such a structure, the effect by the said decorating sheet in which a transparent resin base material sheet consists of a specific 2 layer laminated body is ensured, and the injection molding simultaneous decorating method (and the decoration obtained by it) It can be enjoyed in decorative molded products). Therefore, even after the vacuum forming step and further the injection molding step, a decorative molded product that does not lose the visual three-dimensional design feeling of the uneven pattern at the decorative sheet stage can be obtained with certainty.

本発明の加飾シートによれば、表面が平坦の場合でも、視覚的に凹凸模様を感じさせる立体意匠感が得られる。また、透明樹脂基材シート／光輝性層間に装飾層を設けれた構成とすれば、より高意匠にできる。また、光輝性層裏面に裏打シートを設けた構成とすれば、加飾シートの総厚確保や、樹脂成形物等の被着体との密着性向上等が図れる。また、表面の高光沢領域対応部分の透明樹脂基材シート裏面が裏面方向に凸になる構成とすれば（その部分の該シート厚みは他の部分よりも相対的に厚いので）、その部分の表面がたとえ凸部でも、視覚的に凹凸模様を感じさせる立体意匠感が得られる。   According to the decorative sheet of the present invention, even when the surface is flat, it is possible to obtain a three-dimensional design feeling that visually gives an uneven pattern. Moreover, if it is set as the structure by which the decoration layer was provided between the transparent resin base material sheet / glittering layers, it can be made a higher design. Moreover, if it is set as the structure which provided the backing sheet in the glittering layer back surface, the ensuring of the total thickness of a decorating sheet, the adhesive improvement with adherends, such as a resin molding, etc. can be aimed at. Moreover, if the transparent resin base material sheet back surface corresponding to the high gloss region on the front surface is configured to be convex in the back surface direction (because the sheet thickness of that portion is relatively thicker than other portions), Even if the surface is convex, it is possible to obtain a three-dimensional design feeling that visually gives an uneven pattern.

また、本発明の加飾成形品によれば、凹凸模様を視覚的に感じさせる立体意匠感が得られる等の、上記加飾シートの各々の効果が得られる。   Moreover, according to the decorative molded product of this invention, each effect of the said decorating sheet, such as the three-dimensional design feeling which makes a concavo-convex pattern feel visually, is acquired.

また、本発明の射出成形同時加飾方法によれば、凹凸模様を視覚的に感じさせる立体意匠感を付与できる等の前記各加飾シートのそれぞれの効果が、射出成形同時加飾方法に於いて得られる。更に、その際、使用する加飾シートにその透明樹脂基材シートが特定の２層積層体であるものを用いれば、加飾シート段階での凹凸模様の視覚的な立体意匠感を、真空成形工程、更には射出成形工程後でも、消失しない様にして確実に加飾成形品に付与できる。   In addition, according to the injection molding simultaneous decorating method of the present invention, the respective effects of each of the decorative sheets such as providing a three-dimensional design feeling that makes the uneven pattern visually feel can be achieved in the injection molding simultaneous decorating method. Can be obtained. Furthermore, in that case, if the transparent resin base sheet is a specific two-layer laminate for the decorative sheet to be used, the visual three-dimensional design feeling of the uneven pattern at the decorative sheet stage is vacuum formed. Even after the process, and even after the injection molding process, it can be reliably applied to the decorative molded product so as not to disappear.

本発明の加飾シートの幾つかの形態例を例示する断面図。Sectional drawing which illustrates some example forms of the decorating sheet of this invention. 本発明の加飾シートの別の形態例を例示する断面図。Sectional drawing which illustrates another example of a form of the decorating sheet of this invention. 本発明の加飾シートの別の形態例を例示する断面図。Sectional drawing which illustrates another example of a form of the decorating sheet of this invention. 本発明の加飾成形品の或る形態例を例示する断面図。Sectional drawing which illustrates an example with a certain form of the decorative molded product of this invention. 透明樹脂基材シート表面の高／低光沢領域の形成とこれと位置同調した裏面の凸出部を形成する一方法（エンボス加工法）を説明する断面図。Sectional drawing explaining one method (embossing method) which forms the high / low glossiness area | region of the transparent resin base material sheet surface, and forms the convex part of the back surface position-synchronized with this. 本発明で利用し得る射出成形同時加飾方法をその一形態で説明する概念図。The conceptual diagram explaining the injection molding simultaneous decorating method which can be utilized by this invention with the form.

以下、図面を参照しながら本発明を実施する為の最良の形態を説明する。   The best mode for carrying out the present invention will be described below with reference to the drawings.

概要：
図１は、本発明の加飾シートＳについて、その基本的構成の３例を例示した断面図である。なお、各種形態の加飾シートＳ１、Ｓ２、Ｓ３、或いはＳ４等の加飾シートＳｎ（ｎは整数）を総称して、単に加飾シートＳとも表記する。 Overview:
Drawing 1 is a sectional view which illustrated three examples of the basic composition about decorating sheet S of the present invention. In addition, the decorative sheets Sn (n is an integer) such as the decorative sheets S1, S2, S3, or S4 in various forms are collectively referred to simply as the decorative sheet S.

先ず、図１（Ａ）に示す加飾シートＳ１は、透明樹脂基材シート１の裏面に光輝性層２を設け（積層し）、前記透明樹脂基材シート１の表面は、相対的に周囲よりも低光沢（例えば艶消し）となった低光沢領域Ｌと、相対的に周囲よりも高光沢（例えば艶有り）となった高光沢領域Ｈ（Ｈｆ）と、によって区画されている。図１（Ａ）の場合、高光沢領域Ｈの面は平坦（ｆｌａｔ）な面となっており、これを高光沢領域Ｈｆとして表す。更に、透明樹脂基材シート１の厚みは、相対的に、高光沢領域Ｈｆの部分の厚みがより厚く、且つ低光沢領域Ｌの部分の厚みがより薄くなっている。なお且つ、高光沢領域Ｈｆに於いて、透明樹脂基材シート１の裏面は、裏面方向に向かって凸出（表面に向かって凹没）しており、凸出部ｐが形成されている。   First, the decorative sheet S1 shown in FIG. 1 (A) is provided with a glittering layer 2 on the back surface of the transparent resin base sheet 1 (laminated), and the surface of the transparent resin base sheet 1 is relatively surrounding. It is divided into a low gloss region L having a lower gloss (for example, matte) and a high gloss region H (Hf) having a relatively higher gloss (for example, gloss) than the surroundings. In the case of FIG. 1A, the surface of the high gloss region H is a flat surface, which is represented as the high gloss region Hf. Furthermore, the thickness of the transparent resin base sheet 1 is relatively thicker in the high gloss region Hf and thinner in the low gloss region L. In addition, in the high gloss region Hf, the back surface of the transparent resin base sheet 1 protrudes toward the back surface (depresses toward the surface), and a protruding portion p is formed.

また、透明樹脂基材シート１の表面は、低光沢領域Ｌに於いては平坦である。一方、高光沢領域Ｈに於いては、図１の各断面図に示す通り３通りある。すなわち、既に説明した図１（Ａ）の如く平坦な場合（高光沢領域Ｈｆ）、図１（Ｂ）の如く凹形状（ｒｅｃｅｓｓ）をなす場合（高光沢領域Ｈｒ）、或いは図１（Ｃ）に示す如く凸形状（ｐｒｏｔｒｕｄｅ）をなす場合（高光沢領域Ｈｐ）である。本発明では、これら高光沢領域Ｈｆ、Ｈｒ、Ｈｐを総称して単に高光沢領域Ｈとも表記する。   Further, the surface of the transparent resin base sheet 1 is flat in the low gloss region L. On the other hand, in the high gloss region H, there are three types as shown in the sectional views of FIG. That is, when flat as shown in FIG. 1A (high gloss region Hf), when concave as shown in FIG. 1B (high gloss region Hr), or FIG. 1C. This is a case where a convex shape is formed (high gloss region Hp). In the present invention, these high gloss areas Hf, Hr, and Hp are collectively referred to as high gloss areas H.

なお、「表面」、「裏面」の意味は、本明細書に於いて、「表面」とは、加飾シートＳの透明樹脂基材シート１側方向（加飾シートの観察者側方向）を意味する。図１等の図に於いては上方が表面側となる。一方、「裏面」とは、加飾シートの光輝性層２側方向（加飾シートの観察者側とは反対方向。被着体方向でもある。）を意味する。図１等の図に於いては下方が裏面側となる。   In addition, the meaning of “front surface” and “rear surface” in this specification means “front surface” means the transparent resin base material sheet 1 side direction of the decorative sheet S (observer side direction of the decorative sheet). means. In the drawings such as FIG. 1, the upper side is the surface side. On the other hand, the “back surface” means the direction of the glittering layer 2 side of the decorative sheet (the direction opposite to the observer side of the decorative sheet, which is also the adherend direction). In the drawings such as FIG. 1, the lower side is the back side.

なお、本発明の加飾シートは、更に、必要に応じて、図２の如く、透明樹脂基材シート１と光輝性層２との間に装飾層３を形成したり、光輝性層２の裏面に裏打シート４を設けたり、或いは図示は省くが最裏面に被着体との接着性を付与する為に、接着剤層を設けたりすることが出来る。また、これら、装飾層３、裏打シート４、接着剤層は基本的には何れも必要に応じて設ける層であり、これらは、何れか１層のみ或いは任意の２層を組合わせて形成することが出来る。   In addition, the decorative sheet of the present invention can further form a decorative layer 3 between the transparent resin base sheet 1 and the glitter layer 2 as shown in FIG. The backing sheet 4 can be provided on the back surface, or an adhesive layer can be provided on the back surface to provide adhesion to the adherend although not shown. The decorative layer 3, the backing sheet 4, and the adhesive layer are basically layers provided as necessary, and these are formed by any one layer or a combination of any two layers. I can do it.

そして、上記の様な加飾シートＳを、被着体に対する各種積層法、例えば射出成形同時加飾方法等により、樹脂成形物５の表面に積層すれば、本発明の加飾成形品Ｐｄとなる（図４参照）。また、その積層法として好適なものとして、本発明の射出成形同時加飾方法がある。また、その射出成形同時加飾方法に於いては、加飾シートとして、その透明樹脂基材シートが特定の２層積層体としたものを採用するのが、加飾シート作成段階でエンボス加工を利用した凹凸模様の視覚的な立体意匠感を、真空成形工程、更には射出成形工程後でも、消失しない様にして確実に加飾成形品に付与できる点で、より好ましい。その場合、凹凸模様の確実な付与と加飾シート成形性を両立させる点で、より好ましくは、加飾シートはそれを作成時のエンボス加工を第１透明樹脂基材シートの融点以上で行ったシートを用い、射出成形同時加飾の真空成形工程時は第２透明樹脂基材シートの軟化温度以上且つ第１透明樹脂基材シートの融点未満の温度で行う。   And if the decorative sheet S as described above is laminated on the surface of the resin molded product 5 by various lamination methods for the adherend, for example, the injection molding simultaneous decoration method, etc., the decorative molded product Pd of the present invention and (See FIG. 4). Moreover, as a suitable lamination method, there is the injection molding simultaneous decorating method of the present invention. Moreover, in the injection molding simultaneous decorating method, the embossing process is performed at the stage of creating the decorating sheet, in which the transparent resin base sheet is a specific two-layer laminate. It is more preferable in that the visual three-dimensional design feeling of the uneven pattern used can be surely imparted to the decorative molded product so as not to disappear even after the vacuum molding step and further the injection molding step. In that case, more preferably, the decorative sheet is embossed at the time of creating it at a melting point of the first transparent resin base sheet or more in terms of achieving both the reliable provision of the uneven pattern and the decorative sheet formability. The sheet is used, and at the time of the vacuum molding step of simultaneous injection molding, it is performed at a temperature not lower than the softening temperature of the second transparent resin base sheet and lower than the melting point of the first transparent resin base sheet.

加飾シート：
先ず、加飾シートの構成から説明する。 Decorative sheet:
First, the configuration of the decorative sheet will be described.

〔透明樹脂基材シート〕
材料 ： 透明樹脂基材シート１の材料としては、透明な熱化塑性樹脂の中から、透明性、高光沢領域、低光沢領域、及びシート厚みの厚薄を付与する為のエンボス加工適性、更に、加飾シートを加熱軟化させて真空成形等の成形加工を行なう場合には該成形加工時の熱による成形適性とエンボス加工の耐久性（エンボス消失防止）との両立性等を考慮の上、適宜選定する。 [Transparent resin base sheet]
Material: As a material of the transparent resin base sheet 1, the embossing suitability for imparting transparency, a high gloss region, a low gloss region, and a thickness of the sheet thickness from among transparent thermoplastic resins, When the decorative sheet is heat-softened and subjected to molding such as vacuum molding, the compatibility of the molding suitability by heat during the molding and the durability of embossing (preventing the loss of embossing) is taken into consideration. Select.

上記の様な熱可塑性樹脂の材料としては、例えば、ポリエチレン、ポリプロピレン、ポリメチルペンテン、ポリブテン、オレフィン系熱化塑性エラストマー等のポリオレフィン系樹脂、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、ポリエチレンナフタレート、テレフタル酸−イソフタル酸−エチレングリコール共重合体、テレフタル酸−エチレングリコール−１，４シクロヘキサンジメタノール共重合体、ポリエステル系熱化塑性エラストマー等のポリエステル樹脂、ナイロン６、ナイロン９、ナイロン６，６等のポリアミド樹脂、ポリフッ化ビニル、ポリフッ化ビニリデン、ポリ３フッ化ビニリデン、エチレン−４フッ化エチレン共重合体、ポリ４フッ化エチレン等のフッ素系樹脂、アクリル系樹脂、ポリ塩化ビニル、ポリスチレン、ポリカーボネート樹脂等が挙げられる。   Examples of the material of the thermoplastic resin as described above include polyethylene resins such as polyethylene, polypropylene, polymethylpentene, polybutene, and olefin-based thermoplastic elastomer, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, terephthalic acid- Polyester resin such as isophthalic acid-ethylene glycol copolymer, terephthalic acid-ethylene glycol-1,4 cyclohexanedimethanol copolymer, polyester-based thermal plastic elastomer, polyamide resin such as nylon 6, nylon 9, nylon 6,6 , Fluorinated resins such as polyvinyl fluoride, polyvinylidene fluoride, poly (vinylidene fluoride), ethylene-tetrafluoroethylene copolymer, poly (tetrafluoroethylene), acrylic resins, polyvinyl chloride, polyethylene Styrene, and polycarbonate resins.

なお、上記アクリル系樹脂としては、例えば、ポリメチル（メタ）アクリレート、ポリエチル（メタ）アクリレート、ポリブチル（メタ）アクリレート、メチル（メタ）アクリレート−ブチル（メタ）アクリレート共重合体、エチル（メタ）アクリレート−ブチル（メタ）アクリレート共重合体、メチル（メタ）アクリレート−スチレン共重合体等の樹脂〔但し、（メタ）アクリレートとは、アクリレート又はメタクリレートの意味〕を単体又は２種以上の混合物で用いる。   Examples of the acrylic resin include polymethyl (meth) acrylate, polyethyl (meth) acrylate, polybutyl (meth) acrylate, methyl (meth) acrylate-butyl (meth) acrylate copolymer, and ethyl (meth) acrylate- Resins such as butyl (meth) acrylate copolymer and methyl (meth) acrylate-styrene copolymer (however, (meth) acrylate means acrylate or methacrylate) are used alone or in a mixture of two or more.

厚み ： 透明樹脂基材シートの厚み（積層体構成の場合は総厚）は、５０〜４００μｍ程度である。   Thickness: The thickness of the transparent resin base sheet (total thickness in the case of a laminate structure) is about 50 to 400 μm.

添加剤 ： また、透明樹脂基材シート中には、必要に応じ適宜、添加剤を添加することができる。添加剤としては、透明性、表面光沢、融点等の熱的挙動に支障を来さない範囲で、各種添加剤を適量添加し得る。例えば、ベンゾトリアゾール系、ベンゾフェノン系等の紫外線吸収剤、ヒンダードアミン系ラジカル補捉剤等の光安定剤、シリコーン樹脂、ワックス等の滑剤、着色剤、可塑剤、熱安定剤、抗菌剤、防黴剤、帯電防止剤等である。   Additive: Further, an additive can be appropriately added to the transparent resin substrate sheet as necessary. Appropriate amounts of various additives can be added as long as they do not hinder the thermal behavior such as transparency, surface gloss, and melting point. For example, UV stabilizers such as benzotriazole and benzophenone, light stabilizers such as hindered amine radical scavengers, lubricants such as silicone resins and waxes, colorants, plasticizers, heat stabilizers, antibacterial agents, antifungal agents , Antistatic agents and the like.

層構成 ： また、透明樹脂基材シートの層構成は、単層、或いは異種の樹脂を２層以上積層した積層体の何れでも良い。但し、加飾シートを真空成形や、型内での射出成形同時加飾方法等の加熱成形工程に適用する場合は、透明樹脂基材シート１には、透明樹脂基材シートそれ自体の成形性（乃至は形状追従性）と、表面に微小凹凸の有無として付与した高光沢領域、及び低光沢領域の消失防止と云う相矛盾する両条件を両立させなければならない。   Layer structure: The layer structure of the transparent resin substrate sheet may be a single layer or a laminate in which two or more layers of different kinds of resins are stacked. However, when the decorative sheet is applied to a heat forming process such as vacuum forming or a method of simultaneous injection molding in a mold, the transparent resin base sheet 1 has a moldability of the transparent resin base sheet itself. Both the contradictory conditions of (or shape following) and prevention of disappearance of the high gloss region and the low gloss region provided as the presence or absence of minute irregularities on the surface must be made compatible.

上記両立は、賦形条件、成形条件の加減、樹脂材料の選定等で解決することも可能ではあるが、最も両条件を安定して両立出来る好ましい形態としては、図３の如く、透明樹脂基材シート１を、表面側に位置する第１透明樹脂基材シート１１と、裏面側に位置する第２透明樹脂基材シート１２との２層積層体とし、第１透明樹脂基材シート１１を融点を有する結晶性樹脂とし、また、第２透明樹脂基材シート１２を融点を持た無い非結晶性樹脂とする。しかも、第１透明樹脂基材シートの融点は第２透明樹脂基材シートの軟化温度よりも大とする。なお、軟化温度としては、ＶＩＣＡＴ軟化温度（規格ＤＩＮ−ＥＮＴＷ．５３，４６０規定）を指標とする。   The above-mentioned compatibility can be solved by shaping conditions, adjustment of molding conditions, selection of resin materials, etc., but as a preferable form that can stably satisfy both conditions, a transparent resin group is used as shown in FIG. The material sheet 1 is a two-layer laminate of a first transparent resin base sheet 11 located on the front side and a second transparent resin base sheet 12 located on the back side, and the first transparent resin base sheet 11 is A crystalline resin having a melting point is used, and the second transparent resin base sheet 12 is an amorphous resin having no melting point. Moreover, the melting point of the first transparent resin base sheet is set higher than the softening temperature of the second transparent resin base sheet. In addition, as a softening temperature, VICAT softening temperature (standard DIN-ENTW.53,460 regulation) is used as an index.

上記の様な特定の温度物性を有する２層積層体の透明樹脂基材シートとすることで、表面の凹凸をエンボス加工で形成する時、それも特に微小凹凸で加熱により潰れ易く注意しなければならない表面側の光沢に関係する凹凸について注目すると、第１透明樹脂基材シートの融点以上の温度でエンボス加工を行うことで、第１透明樹脂基材シートの結晶性樹脂はその結晶構造が溶けて凹凸形状が賦形されるが、エンボス加工後、温度が低下すると該樹脂は再結晶化して凹凸形状が固定され、しかも射出成形同時加飾の真空成形等の加熱成形時に加飾シートを再度加熱するときは、前記融点未満（且つ第２透明樹脂基材シートのＶＩＣＡＴ軟化温度以上）の温度とすれば、結晶構造は維持されるので、加飾シート全体としての成形性は非結晶性樹脂とする第２透明樹脂基材シート主体で確保した上で、微小凹凸の形状は保ち易くなるのである。さらに、第２透明樹脂基材シートの裏面側の凹凸については、加飾シートを、被着体自体、或いは被着体に接着するための接着剤中に、これらが流動状態にあるうちに、加飾シート裏面側の凹凸を埋没させることにより、該裏面側の凹凸を保持することが出来る。例えば、加飾シートを、真空成形工程を経て射出成形同時加飾する場合に於いては、先ず、真空成形にて加飾シートを成形品形状に予備成形する際は、通常、加飾シート表面側が真空成形型側に押付けられるが、裏面側の凹凸は自由状態な為、裏面側の凹凸の消失は防止出来る。次いで、射出成形型中では、加飾シートは、その表面側が射出成形型面に押圧されるが、裏面側の凹凸は流動状態の射出樹脂で充填される為、該裏面側の凹凸は樹脂成形物中に保持される。   By forming a transparent resin base sheet of a two-layer laminate having specific temperature properties as described above, when forming surface irregularities by embossing, it must also be carefully crushed by heating, especially with minute irregularities When attention is paid to the unevenness related to the gloss on the surface side, the crystalline resin of the first transparent resin substrate sheet is melted by embossing at a temperature higher than the melting point of the first transparent resin substrate sheet. However, when the temperature drops after embossing, the resin recrystallizes and the uneven shape is fixed, and the decorative sheet is again used during heat molding such as vacuum molding for simultaneous injection molding. When heating, if the temperature is lower than the melting point (and not less than the VICAT softening temperature of the second transparent resin base sheet), the crystal structure is maintained. While ensuring the second transparent resin substrate sheet mainly to the shape of the fine irregularities is being easily maintained. Furthermore, for the unevenness on the back side of the second transparent resin base sheet, the decorative sheet is attached to the adherend itself, or an adhesive for adhering to the adherend, while these are in a fluid state, By burying the irregularities on the back side of the decorative sheet, the irregularities on the back side can be retained. For example, in the case of decorating a decorative sheet simultaneously through injection molding through a vacuum forming step, first, when the decorative sheet is preformed into a molded product shape by vacuum forming, usually the surface of the decorative sheet Although the side is pressed against the vacuum mold side, since the unevenness on the back side is in a free state, the disappearance of the unevenness on the back side can be prevented. Next, in the injection mold, the decorative sheet is pressed on the surface of the injection mold, but the back side unevenness is filled with the injection resin in a fluid state, so the back side unevenness is resin molded. Retained in the object.

上記の様な第１透明樹脂基材シートと第２透明樹脂基材シートとの組合せは、具体的には、射出成形同時加飾法の予備成形としての真空成形の場合、加飾シートに加わる温度は１００〜１７０℃の範囲であるから、第２透明樹脂基材シート１２としては、アクリル系樹脂（ポリメチル（メタ）アクリレートの場合、ＶＩＣＡＴ軟化温度１２０℃）、ポリカーボネート樹脂（ＶＩＣＡＴ軟化温度１５５℃）、又はポリスチレン（ＶＩＣＡＴ軟化温度１０３℃）等を用い、第１透明樹脂基材シート１１としては、ポリフッ化ビニリデン（融点１６０℃以上）、ポリ４フッ化エチレン（融点３２７℃）、ポリ３フッ化エチレン（融点２０５〜２２０℃）等のフッ素系樹脂を用いれば、エンボス加工温度を第１透明樹脂基材シート１１の融点以上の温度で行ない、真空成形温度を第１透明樹脂基材シート１１の融点未満で、且つ第２透明樹脂基材シート１２の軟化温度以上となる組み合わせを選択することが可能である。   Specifically, the combination of the first transparent resin base sheet and the second transparent resin base sheet as described above is added to the decorative sheet in the case of vacuum forming as preforming in the simultaneous injection molding method. Since the temperature is in the range of 100 to 170 ° C., the second transparent resin base sheet 12 includes acrylic resin (in the case of polymethyl (meth) acrylate, VICAT softening temperature 120 ° C.), polycarbonate resin (VICAT softening temperature 155 ° C. ) Or polystyrene (VICAT softening temperature 103 ° C.), etc., and the first transparent resin base sheet 11 is made of polyvinylidene fluoride (melting point 160 ° C. or higher), polytetrafluoroethylene (melting point 327 ° C.), poly 3 fluorine. If a fluorine-based resin such as ethylene fluoride (melting point: 205 to 220 ° C.) is used, the embossing temperature is equal to or higher than the melting point of the first transparent resin substrate sheet 11. In performed, the vacuum molding temperature below the melting point of the first transparent resin substrate sheet 11, it is possible to select the combination and a softening temperature or higher of the second transparent resin substrate sheet 12.

また、上記第１及び第２透明樹脂基材シートの２層積層体の樹脂の具体的な組合せ例としては、フッ素系樹脂（より具体的には例えばフッ化ビニリデン樹脂）を第１透明樹脂基材シートに用い、アクリル系樹脂を第２透明樹脂基材シートに用いた構成は、好ましい構成の一つである。フッ素系樹脂のなかでも特にフッ化ビニリデン樹脂は、コスト面で高すぎ且つ低すぎず適度な融点等の観点から好ましい。一方、アクリル系樹脂は、シート加熱時の成形適性温度範囲を広くできる傾向があり好ましく、また、耐候性や透明性に優れている点でも好ましい。   In addition, as a specific combination example of the resin of the two-layer laminate of the first and second transparent resin base sheets, a fluorine-based resin (more specifically, for example, vinylidene fluoride resin) is used as the first transparent resin group. A configuration in which the acrylic resin is used for the material sheet and the acrylic resin is used for the second transparent resin base sheet is one of preferable configurations. Among the fluorine-based resins, in particular, vinylidene fluoride resin is preferable from the viewpoint of an appropriate melting point and the like that are not too high and too low in terms of cost. On the other hand, an acrylic resin is preferred because it tends to widen the molding suitability temperature range at the time of heating the sheet, and is also preferred in terms of excellent weather resistance and transparency.

ところで、射出成形同時加飾法の予備成形としての真空成形（真空圧空成形も包含する）時の加飾シートの加熱温度１００〜１７０℃の詳細としては、真空成形型を射出成形型と兼用して射出成形型上で行うインライン予備成形の場合には、１００〜１２０℃程度であり、真空成形を射出成形型とは別型で、つまり射出成形機の外で予め行うオフライン予備成形の場合には１４０〜１７０℃である。従って、これら観点より、第１透明樹脂基材シートの樹脂は、その融点が、インライン予備成形に限定するならば１２０℃以上、好ましくは１３０℃以上、オフライン予備成形も含めて考えるならば１５０℃以上、乃至は１７０℃以上となる樹脂を選定することが好ましい。   By the way, as a detail of the heating temperature of the decorative sheet at the time of vacuum forming (including vacuum / pressure forming) as a preliminary forming of the simultaneous injection molding method, the vacuum forming die is also used as the injection forming die. In the case of in-line preforming performed on an injection mold, the temperature is about 100 to 120 ° C., and vacuum molding is performed separately from the injection mold, that is, in the case of offline preforming performed in advance outside the injection molding machine. Is 140-170 ° C. Therefore, from these viewpoints, the resin of the first transparent resin substrate sheet has a melting point of 120 ° C. or higher, preferably 130 ° C. or higher if limited to in-line preforming, and 150 ° C. if offline pre-molding is considered. As described above, it is preferable to select a resin having a temperature of 170 ° C. or higher.

なお、第１透明樹脂基材シートの厚みは、表面を低光沢とする為の凹凸形状の深さに応じたものとすれば良い。なお、加飾シート全体としての真空成形性は、第２透明樹脂基材シート等の他層で主体的に担う事が可能である。従って、通常、第１透明樹脂基材シートの厚みは第２透明樹脂基材シートの厚みよりも薄くする。第１透明樹脂基材シートの厚みの具体例を挙げれば１０〜５０μｍ程度である。   In addition, what is necessary is just to let the thickness of a 1st transparent resin base material sheet be a thing according to the depth of the uneven | corrugated shape for making the surface low gloss. In addition, the vacuum formability as the whole decorative sheet can be mainly borne by other layers such as the second transparent resin base sheet. Therefore, the thickness of the first transparent resin base sheet is usually made thinner than the thickness of the second transparent resin base sheet. If the specific example of the thickness of a 1st transparent resin base material sheet is given, it will be about 10-50 micrometers.

一方、第２透明樹脂基材シートの方は、加飾シートとしての真空成形性を確保する為、及び透明樹脂基材シート裏面側の凹凸を出す為の層である。また、通常は、第１透明樹脂基材シートよりも主体的に加飾シートとしての総厚を担う層とする。従って、第２透明樹脂基材シートには第１透明樹脂基材シートよりも真空成形性が良い樹脂を用いる事になる。これらの点で、第２透明樹脂基材シートの厚みは、通常は、第１透明樹脂基材シートの厚みよりも厚くする。例えば、第２透明樹脂基材シートの厚みの具体例を挙げれば５０〜２００μｍ程度である。なお、第１透明樹脂基材シートの厚み及び第２透明樹脂基材シートとの厚み関係は、これに限定されるものでは無い。   On the other hand, the 2nd transparent resin base material sheet is a layer for ensuring the vacuum formability as a decorating sheet, and taking out the unevenness | corrugation of the transparent resin base material sheet back side. Moreover, normally, it is set as the layer which bears the total thickness as a decorating sheet mainly rather than a 1st transparent resin base material sheet. Therefore, a resin having better vacuum formability than the first transparent resin substrate sheet is used for the second transparent resin substrate sheet. In these respects, the thickness of the second transparent resin base sheet is usually thicker than the thickness of the first transparent resin base sheet. For example, if the specific example of the thickness of a 2nd transparent resin base material sheet is given, it will be about 50-200 micrometers. In addition, the thickness relationship between the thickness of the first transparent resin substrate sheet and the second transparent resin substrate sheet is not limited to this.

なお、第１透明樹脂基材シートと第２透明樹脂基材シートとの積層は、これら各層を樹脂シートとして用意し、両樹脂シートを接着剤を介して積層しても良いが、生産性、コスト等の点では、好ましくは、両樹脂の２層共押出しによる溶融積層、或いは一方は樹脂シートとして用意し、これに溶融押出塗工する方が良い。２層共押出し或いは溶融押出塗工では、樹脂シートとしては不可能な薄い樹脂層でも形成できる等の利点が得られる。なかでも、２層共押出しは積層シートの層間密着性の点でより好ましい。
高光沢領域と低光沢領域 ： 本発明に於いて、高光沢領域Ｌと低光沢領域Ｈとは、透明樹脂基材シート１の表面の光沢を、相対的に光沢の差を有する２種の領域に区画し、両領域Ｈ、Ｌとによって、透明樹脂基材シート１の膜厚の厚薄、及び透明樹脂基材シート１と光輝性層２との光反射性界面の裏面凹凸による視覚的凹凸感を補強する機能を持つ。 In addition, lamination | stacking with a 1st transparent resin base material sheet and a 2nd transparent resin base material sheet may prepare these each layer as a resin sheet, and may laminate | stack both resin sheets through an adhesive agent, but productivity, In terms of cost and the like, it is preferable to prepare melt lamination by two-layer coextrusion of both resins, or to prepare one as a resin sheet and apply melt extrusion coating thereto. In the two-layer coextrusion or melt extrusion coating, there is an advantage that a thin resin layer that cannot be formed as a resin sheet can be formed. Among these, two-layer coextrusion is more preferable in terms of interlayer adhesion of the laminated sheet.
High-gloss area and low-gloss area: In the present invention, the high-gloss area L and the low-gloss area H are two areas having relatively different gloss in terms of the gloss of the surface of the transparent resin substrate sheet 1. A visual unevenness due to the thickness of the transparent resin substrate sheet 1 and the back surface unevenness of the light-reflective interface between the transparent resin substrate sheet 1 and the glittering layer 2 by the regions H and L. Has the function of reinforcing.

高光沢領域Ｈと低光沢領域Ｌとで区画されて構成される模様（この模様は視覚的な凹凸感を伴う為、凹凸模様と呼称する）としては、要求される意匠表現に応じたものとすれば良く、特に限定されるものではない。凹凸模様は、例えば、木目導管溝、木目年輪模様、砂目、梨地、ヘアライン、万線状溝、花崗岩の劈開面の凹凸模様、布目の表面テクスチュア、皮絞、文字、幾何学模様等である。特に、視覚的に凹部を表現すべき領域を、高光沢部Ｈに対応させ、また、視覚的に凸部を表現すべき領域を、低光沢領域Ｌに対応させる。なお、従来、表面の艶差模様によって擬似的な凹凸模様を感じさせる技術が知られているが、そこでは、視覚的に凹凸部を表現すべき領域を、単に表面光沢差の視覚的効果のみを応用するに留まり、本発明の如く、透明樹脂基材シート裏面の光輝性層と透明樹脂基材シートの厚み差との視覚的相互作用を用い無い為、本発明とは作用機構が異なる。その結果、高光沢領域Ｈが凸部、低光沢領域Ｌが凹部に対応する結果となり、本発明とは艶の高低が全く逆で異なる。   A pattern composed of a high-gloss area H and a low-gloss area L (this pattern is called a concavo-convex pattern because it has a visual concavo-convex sensation), according to the required design expression. There is no particular limitation. The uneven pattern is, for example, a wood grain conduit groove, a wood grain annual ring pattern, a sand grain, a satin, a hairline, a line groove, an irregular pattern on a granite cleaved surface, a textured surface texture, a skin draw, a character, a geometric pattern, etc. . In particular, a region where the concave portion is visually expressed is made to correspond to the high gloss portion H, and a region where the convex portion is visually expressed is made to correspond to the low gloss region L. Conventionally, there is a known technology that makes the surface appear to have a concavo-convex pattern due to the gloss pattern on the surface. As in the present invention, since the visual interaction between the glitter layer on the back surface of the transparent resin base sheet and the thickness difference between the transparent resin base sheets is not used, the mechanism of action is different from that of the present invention. As a result, the high gloss region H corresponds to the convex portion and the low gloss region L corresponds to the concave portion, and the gloss level is completely opposite to the present invention.

高光沢領域Ｈと低光沢領域Ｌとの光沢差は、目視にてその光沢差が認識出来る程度であれば良い。通常、ＪＩＳ Ｚ８７４１規定の６０度鏡面光沢度Ｇｓ（６０°）で５以上、より好ましくは２０以上とする。低光沢領域Ｌは高光沢領域Ｈよりも、微小凹凸形成によって相対的に粗面とし、また、高光沢領域Ｈは低光沢領域Ｌに比べ相対的に、表面の平滑性を高くする。例えば、例を示すと、高光沢領域Ｈに於いては、透明樹脂基材シート１表面の表面粗さを、ＪＩＳ Ｂ０６０１規定の中心線平均粗さＲａが１μｍ未満で、且つ鏡面光沢度Ｇｓ（６０°）が８０以上とし、又低光沢領域Ｌに於いては、透明樹脂基材シート１表面の中心線平均粗さＲａが４μｍ以上で、且つ鏡面光沢度Ｇｓ（６０°）が４０以下とする。   The gloss difference between the high gloss region H and the low gloss region L may be such that the gloss difference can be recognized visually. Usually, the 60 degree specular gloss Gs (60 °) specified in JIS Z8741 is 5 or more, more preferably 20 or more. The low gloss region L has a relatively rough surface by forming minute irregularities than the high gloss region H, and the high gloss region H has relatively higher surface smoothness than the low gloss region L. For example, in the high gloss region H, for example, the surface roughness of the surface of the transparent resin base sheet 1 is such that the center line average roughness Ra specified in JIS B0601 is less than 1 μm and the specular gloss Gs ( 60 °) is 80 or more, and in the low gloss region L, the center line average roughness Ra of the surface of the transparent resin substrate sheet 1 is 4 μm or more and the specular gloss Gs (60 °) is 40 or less. To do.

なお、以上の様な、光沢差を出す為の微小凹凸（粗面）の程度差の形成は、公知の方法、例えば、エンボス加工等によれば形成できる。   In addition, formation of the above-mentioned difference in the degree of fine unevenness (rough surface) for producing a gloss difference can be formed by a known method, for example, embossing.

厚み差 ： 透明樹脂基材シート１の厚みは、相対的に高光沢領域Ｈに於いては厚く、低光沢領域Ｌに於いては薄くなる様に形成する。それによる厚みの差は、通常１０〜１００μｍ程度である。高光沢領域Ｈ直下の厚膜部に於いては、図１に示す如く、透明樹脂基材シート１と光輝性層２との界面（光反射性界面とも言う）は、裏面方向に凸出（膨出）して凸出部ｐを成す様に賦形される。この凸出部ｐの形状は、好ましくは、少なくとも横断面形状が裏面方向に凸になる曲線にすることが好ましい。例えば、円、楕円、放物線、双曲線、正弦曲線、楕円函数曲線、ベッセル函数曲線、サイクロイド等、乃至はこれらで近似される曲線である。縦断面形状は、裏面方向に凸になる曲線でも良いし、裏面方向に凸になる直線状等他の形状でも良い。此の様な形状で前記光反射性界面を、裏面方向に凸出させることによって、該光反射性界面は凹面鏡の如く機能して、照明光を一旦、焦点（焦線）に収束させた後、そこから発散させる。その為、凸出部ｐの深さ、形状がより明るく強調されて見える。これに加えて、該凸出部ｐの側面部には、斜方向から入射した照明光に対して陰影を生じ、凸出部の輪郭を強調する（エッジエンハンスメント）効果も奏する。更に、凸出部の直上部を高光沢領域Ｈとし、その周囲を相対的に低光沢領域Ｌとすることによって、凸出部（表面から見ると凹没部）の深さ、形状を周囲よりも強調する効果が加えられる。その結果、透明樹脂基材シート１表面が平坦、或いは少し凸出していても、視覚的には十分な凹凸感が再現される。   Thickness difference: The thickness of the transparent resin base sheet 1 is formed so as to be relatively thick in the high gloss region H and thin in the low gloss region L. The difference in thickness is usually about 10 to 100 μm. In the thick film portion immediately below the high gloss region H, as shown in FIG. 1, the interface between the transparent resin base sheet 1 and the glittering layer 2 (also referred to as a light reflective interface) protrudes in the back surface direction ( It is shaped so as to form a protruding portion p. The shape of the protruding portion p is preferably a curve that has at least a cross-sectional shape protruding in the back surface direction. For example, a circle, an ellipse, a parabola, a hyperbola, a sine curve, an elliptic function curve, a Bessel function curve, a cycloid, etc., or a curve approximated by these. The vertical cross-sectional shape may be a curve that is convex in the back surface direction, or may be another shape such as a straight line that is convex in the back surface direction. By projecting the light-reflective interface in such a shape in the direction of the back surface, the light-reflective interface functions like a concave mirror, and once the illumination light is converged to the focal point (focal line) Diverge from there. Therefore, the depth and shape of the protruding portion p appear to be emphasized brighter. In addition to this, a shadow is generated on the side surface of the protruding portion p with respect to the illumination light incident from the oblique direction, and the contour of the protruding portion is emphasized (edge enhancement). Furthermore, the depth and shape of the protruding portion (indented portion when viewed from the surface) are set to be higher than the surrounding by setting the upper portion of the protruding portion as the high gloss region H and surrounding the relatively low gloss region L. The effect to emphasize is also added. As a result, even if the surface of the transparent resin substrate sheet 1 is flat or slightly protruded, a sufficient unevenness is visually reproduced.

高低の光沢領域と裏面凸出部の形成法 ： 透明樹脂基材シート１に、上述の様な高光沢領域Ｈと低光沢領域Ｌ、及びこれと位置同調した裏面の凸出部ｐを形成する方法としては、エンボス加工法等の従来公知の賦形方法を適宜採用すれば良い。但し、透明樹脂基材シートとして、前述の如く、透明樹脂基材シートを、結晶性樹脂の第１透明樹脂基材シートと非結晶性樹脂の第２透明樹脂基材シートから構成し且つ第１透明樹脂基材シートの融点が第２透明樹脂基材シートの軟化温度よりも大とした２層積層体の構成のシートを用いる場合は、一般に、第１透明樹脂基材シート１１のエンボス加工温度は第２透明樹脂基材シート１２の熔融温度以上になる。その場合、両透明樹脂基材シート共、流動状態となる。この様な状況下でエンボス加工を行なう為には、例えば、次の（Ａ）、（Ｂ）の加工方法等が可能である。また、第１透明樹脂基材シートをその融点以上に加熱し、且つ第２透明樹脂基材シートはその熔融温度未満に加熱し、エンボスするには（Ｃ）の加工方法等が可能である。なお、エンボス加工方法・機械自体は公知のものである。   Method for forming high and low gloss regions and back surface protruding portion: forming a high gloss region H and a low gloss region L as described above on the transparent resin base sheet 1, and a back surface protruding portion p aligned with this. As a method, a conventionally known shaping method such as an embossing method may be appropriately employed. However, as described above, as the transparent resin base sheet, the transparent resin base sheet is composed of the first transparent resin base sheet of crystalline resin and the second transparent resin base sheet of amorphous resin, and the first When using a sheet having a two-layer laminate in which the melting point of the transparent resin substrate sheet is larger than the softening temperature of the second transparent resin substrate sheet, generally, the embossing temperature of the first transparent resin substrate sheet 11 is used. Becomes higher than the melting temperature of the second transparent resin substrate sheet 12. In that case, both transparent resin base material sheets will be in a fluid state. In order to perform embossing under such circumstances, for example, the following processing methods (A) and (B) are possible. Moreover, the processing method of (C) etc. are possible for heating a 1st transparent resin base material sheet more than the melting | fusing point and heating a 2nd transparent resin base material sheet below its melting temperature, and embossing. The embossing method and machine itself are known.

（Ａ）両透明樹脂基材シートを枚葉シートとし、これを枚葉の熱プレス機でエンボス加工する。
（Ｂ）両透明樹脂基材シートを連続帯状シートとし、これをエンドレスベルト状のエンボス版、及びエンドレスベルト状の圧胴との間で挾持加圧し、両エンドレスベルトをシート走行速度に同期させて駆動することにより、流動状態の両透明樹脂基材シートに張力を実質的に印加しないでエンボス加工する。
（Ｃ）両透明樹脂基材シートを連続帯状シートとし、これを積層状態で輪転式のエンボス機を用いてエンボス加工する。但し、第２透明樹脂基材シート１２側は加熱ドラムからの熱伝導により、第２透明樹脂基材シート１２の熔融温度未満に加熱し、一方、第１透明樹脂基材シート１１側は、赤外線輻射ヒータによって、表面近傍の第１透明樹脂基材シート１１のみ局部的に、第１透明樹脂基材シート１１の融点以上となる様に加熱して、エンボス加工する。 (A) Both transparent resin base material sheets are used as a single wafer sheet, and this is embossed with a single wafer heat press.
(B) Both transparent resin base sheets are made into continuous belt-like sheets, which are sandwiched and pressed between an endless belt-like embossed plate and an endless belt-like impression cylinder, and both endless belts are synchronized with the sheet running speed. By driving, embossing is performed without substantially applying tension to the two transparent resin substrate sheets in a fluidized state.
(C) Both transparent resin base material sheets are made into a continuous belt-like sheet, and this is embossed using a rotary embossing machine in a laminated state. However, the second transparent resin base sheet 12 side is heated below the melting temperature of the second transparent resin base sheet 12 by heat conduction from the heating drum, while the first transparent resin base sheet 11 side is infrared. Only the first transparent resin base sheet 11 near the surface is locally heated by the radiation heater so as to be equal to or higher than the melting point of the first transparent resin base sheet 11 and embossed.

更に、上記２層積層体構成の場合の形成方法として好ましい方法の１つを、図５を参照して説明する。   Furthermore, one preferred method for forming the two-layer laminate structure will be described with reference to FIG.

先ず、各々全て平坦均一膜厚の、第１透明樹脂基材シート１１、第２透明樹脂基材シート１２、及び光輝性層２を用意する。此の図では、表面側の第１透明樹脂基材シート１１と裏面側の第２透明樹脂基材シート１２とは予め積層されており、且つ第２透明樹脂基材シート１２の裏面には印刷法等により光輝性層も積層済みとなっているが、３層とも別個の層として用意し、エンボス加工と同時に積層しても良い。また、第１樹脂基材シート１１は結晶性樹脂、第２透明樹脂基材シート１２は非結晶性樹脂から成り、第１透明樹脂基材シート１１の融点は第２透明樹脂基材シート１２の軟化温度よりも大となるように選んである。   First, the 1st transparent resin base material sheet 11, the 2nd transparent resin base material sheet 12, and the glittering layer 2 which are all flat uniform film thickness are prepared. In this figure, the first transparent resin substrate sheet 11 on the front surface side and the second transparent resin substrate sheet 12 on the rear surface side are laminated in advance, and printing is performed on the back surface of the second transparent resin substrate sheet 12. The glittering layer is also laminated by the method or the like, but all three layers may be prepared as separate layers and laminated simultaneously with embossing. The first resin base sheet 11 is made of a crystalline resin, the second transparent resin base sheet 12 is made of an amorphous resin, and the melting point of the first transparent resin base sheet 11 is that of the second transparent resin base sheet 12. It is chosen to be greater than the softening temperature.

次いで、図５（Ａ）に示す如く、各層をゴム圧胴Ｃと金属エンボス版Ｅとの間に挿入する。ゴム圧胴Ｃの表面は第１透明樹脂基材シート１１の表面に賦形すべき粗面に対応した粗面Ｆｒになっている。ゴム圧胴Ｃは、少なくとも表面はシリコーンゴム等のゴムからなるが、中心部分は鉄等の剛体の芯材から成っていても良い。又、金属エンボス版Ｅは鉄、銅等の金属から成り、表面には第２透明樹脂基材シート１２の裏面に賦形すべき凹凸に対応した凹凸面になっている。尚、ゴム圧胴Ｃ、及び金属エンボス版Ｅは平板状でも円筒状でもいずれでも良い。   Next, each layer is inserted between the rubber impression cylinder C and the metal embossed plate E as shown in FIG. The surface of the rubber impression cylinder C is a rough surface Fr corresponding to the rough surface to be shaped on the surface of the first transparent resin base sheet 11. The rubber impression cylinder C has at least a surface made of rubber such as silicone rubber, but the center portion may be made of a rigid core material such as iron. The metal embossed plate E is made of a metal such as iron or copper, and has an uneven surface corresponding to the unevenness to be formed on the back surface of the second transparent resin base sheet 12 on the surface. The rubber impression cylinder C and the metal embossed plate E may be flat or cylindrical.

そして、第１透明樹脂基材シート１１、第２透明樹脂基材シート１２、及び光輝性層２を加熱軟化させて、図５（Ｂ）の如く、第１透明樹脂基材シート１１の表面側がゴム圧胴Ｃ側に当接し、また、光輝性層２の裏面側が金属エンボス版Ｅ側に当接する位置関係にて、ゴム圧胴Ｃと金属エンボス版Ｅとで押圧する（所謂エンボス加工）。加熱の際、第１透明樹脂基材シート１１の表面側は赤外線輻射ヒータ（不図示）で加熱して、第１透明樹脂基材シート１１の表面付近を融点以上に加熱する。一方、第２透明樹脂基材シート１２側は加熱ドラム（不図示）からの熱伝導で加熱し、第２透明樹脂基材シート１２は熔融温度に達し無いように加熱する。   And the 1st transparent resin base material sheet 11, the 2nd transparent resin base material sheet 12, and the glittering layer 2 are heat-softened, and the surface side of the 1st transparent resin base material sheet 11 is as shown in FIG.5 (B). The rubber impression cylinder C and the metal embossing plate E are pressed in a positional relationship where they contact the rubber impression cylinder C side and the back side of the glitter layer 2 contacts the metal embossing plate E side (so-called embossing). During the heating, the surface side of the first transparent resin substrate sheet 11 is heated by an infrared radiation heater (not shown), and the vicinity of the surface of the first transparent resin substrate sheet 11 is heated to the melting point or higher. On the other hand, the second transparent resin substrate sheet 12 side is heated by heat conduction from a heating drum (not shown), and the second transparent resin substrate sheet 12 is heated so as not to reach the melting temperature.

図５（Ｂ）の如く、エンボス加工の際、金属エンボス版Ｅの凸部ｅｐで押圧される高エンボス圧領域Ｂに於いては、各層とも強く押圧され、両透明樹脂基材シート１１、１２の厚みは相対的に薄くなる。それと同時に、ゴム圧胴Ｃ表面の粗面Ｆｒも完全に賦形され、第１透明樹脂基材シート１１の表面は低光沢領域Ｌとなる。一方、金属エンボス版Ｅの凹部ｅｒで押圧される低エンボス圧領域Ａに於いては、各層とも押圧は弱く、両透明樹脂基材シート１１、１２の厚みは相対的に厚くなる。それと同時に、ゴム圧胴Ｃ表面の粗面Ｆｒの賦形も不完全となり、第１透明樹脂基材シート１１表面は高光沢領域Ｈとなる。そして、各層を冷却後、或いは冷却前に、ゴム圧胴Ｃと金属エンボス版Ｅとを押圧から開放することで、各層が積層、賦形されて成る、図３の如き本発明の加飾シートＳ５が得られる。   As shown in FIG. 5B, in embossing, in the high embossing pressure region B pressed by the convex part ep of the metal embossing plate E, each layer is strongly pressed, and both transparent resin base sheets 11 and 12 are pressed. Is relatively thin. At the same time, the rough surface Fr on the surface of the rubber impression cylinder C is completely shaped, and the surface of the first transparent resin base sheet 11 becomes a low gloss region L. On the other hand, in the low embossing pressure region A pressed by the recess er of the metal embossed plate E, the pressing is weak in each layer, and the thickness of both transparent resin base sheets 11 and 12 is relatively thick. At the same time, the shaping of the rough surface Fr on the surface of the rubber impression cylinder C becomes incomplete, and the surface of the first transparent resin base sheet 11 becomes a high gloss region H. Then, after each layer is cooled or before cooling, the rubber impression cylinder C and the metal embossed plate E are released from pressing, and each layer is laminated and shaped, and the decorative sheet of the present invention as shown in FIG. S5 is obtained.

〔光輝性層〕
光輝性層２は、透明樹脂基材シート１の裏面に設ける（積層する）。光輝性層の材料、及び形成方法等は、従来公知のものでよい。例えば、光輝性層は、光輝性顔料を透明な結合剤（バインダー）中に分散させた光輝性インキ層、或いは金属薄膜層等で良い。なお、光輝性インキ層のバインダーの樹脂としては、アクリル樹脂、塩化ビニル−酢酸ビニル共重合体、塩素化ポリプロピレン、ポリエステル樹脂、ポリウレタン樹脂等を用いる。光輝性顔料としては、アルミニウム、真鍮等の金属の粉末又は鱗片等の金属顔料、二酸化チタン被覆雲母の粉末又は鱗片等の真珠光沢（パール）顔料等を用いる。また、光輝性インキ層の形成法は、ロールコート、コンマコート、スリットリバースコート、カーテンフローコート等の塗工法、グラビア印刷、シルクスクリーン印刷等による全面ベタ印刷等によれば良い。また、光輝性顔料の他に着色顔料等の着色剤を添加して、着色金属光沢（カラーメタリック）としても良い。なお、光輝性インキ層の厚みは通常１〜５０μｍ程度である。一方、金属薄膜層としては、例えば、アルミニウム、クロム、錫、インジウム等の金属を蒸着、スパッタ、無電解めっき等したもので良い。また、透明樹脂基材シート１中に着色剤を添加するか、或いは透明樹脂基材シート１と金属薄膜層との間に着色透明インキ層を設けて、光輝性層による光輝性をも着色金属光沢（カラーメタリック）としても良い。なお、金属薄膜層の厚みは通常０．１〜１μｍ程度である。 (Brightness layer)
The glitter layer 2 is provided (laminated) on the back surface of the transparent resin substrate sheet 1. The material of the glitter layer, the formation method, and the like may be conventionally known ones. For example, the glitter layer may be a glitter ink layer in which a glitter pigment is dispersed in a transparent binder (binder), a metal thin film layer, or the like. As the resin for the binder of the glitter ink layer, acrylic resin, vinyl chloride-vinyl acetate copolymer, chlorinated polypropylene, polyester resin, polyurethane resin, or the like is used. As the bright pigment, metal powder such as aluminum or brass or metal pigment such as scale, pearlescent pigment such as titanium dioxide-coated mica powder or scale, or the like is used. Further, the glittering ink layer may be formed by a coating method such as roll coating, comma coating, slit reverse coating, curtain flow coating, etc., full surface printing by gravure printing, silk screen printing, or the like. Moreover, it is good also as coloring metallic luster (color metallic) by adding coloring agents, such as a coloring pigment, other than a luster pigment. The thickness of the glitter ink layer is usually about 1 to 50 μm. On the other hand, as the metal thin film layer, for example, a metal such as aluminum, chromium, tin, or indium may be deposited, sputtered, electroless plated, or the like. In addition, a coloring agent is added to the transparent resin base sheet 1 or a colored transparent ink layer is provided between the transparent resin base sheet 1 and the metal thin film layer, so that the glitter metal by the glitter layer is also colored. It may be glossy (color metallic). In addition, the thickness of a metal thin film layer is about 0.1-1 micrometer normally.

〔装飾層〕
装飾層３は、より高意匠とする為に必要に応じ設ける層である。装飾層は、光輝性層２の光輝性、及びそれに基づく視覚的凹凸感を阻害し無いように、部分的に設けるか、或いは透明着色インキ等の透明性の有るものにて形成する。装飾層の形成に使用するインキとしては、公知のものの中から適宜選択使用すれば良い。例えば、インキのバインダーの樹脂としては、アクリル樹脂、塩化ビニル−酢酸ビニル共重合体、塩素化ポリプロピレン、ポリエステル樹脂、ポリウレタン樹脂等を用いる。また、インキに含有させる着色剤としては、例えば、チタン白、亜鉛華、カーボンブラック、鉄黒、弁柄、カドミウムレッド、群青、コバルトブルー、黄鉛、チタンイエロー等の無機顔料、フタロシアニンブルー、インダスレンブルー、イソインドリノンイエロー、キナクリドンレッド、ペリレンレッド等の有機顔料、或いは染料等が用いられる。なお、装飾層の絵柄は、例えば、木目模様、石目模様、砂目模様、布目模様、皮絞模様、タイル貼模様、煉瓦積模様、幾何学図形、文字、記号、或いは全面ベタ等である。また、装飾層としては、木目等の柄意匠の表現以外に、磁性体層、導電性層等の機能性層等でも良い。つまり加飾乃至は装飾とは、この様な機能性付与も包含する。 [Decoration layer]
The decorative layer 3 is a layer provided as necessary in order to obtain a higher design. The decorative layer is partially provided or formed of a transparent material such as transparent colored ink so as not to hinder the glitter of the glitter layer 2 and the visual unevenness based thereon. The ink used for forming the decorative layer may be appropriately selected from known ones. For example, an acrylic resin, vinyl chloride-vinyl acetate copolymer, chlorinated polypropylene, polyester resin, polyurethane resin, or the like is used as the resin for the ink binder. Examples of the colorant contained in the ink include titanium white, zinc white, carbon black, iron black, petal, cadmium red, ultramarine, cobalt blue, yellow lead, titanium yellow, and other inorganic pigments, phthalocyanine blue, and indus. Organic pigments such as ren blue, isoindolinone yellow, quinacridone red, and perylene red, or dyes are used. The decorative layer pattern is, for example, a wood grain pattern, a stone pattern, a grain pattern, a texture pattern, a leather pattern, a tiled pattern, a brickwork pattern, a geometric figure, a character, a symbol, or a solid surface. . Moreover, as a decoration layer, functional layers, such as a magnetic body layer and an electroconductive layer, etc. other than expression of pattern designs, such as a grain, may be sufficient. In other words, decoration or decoration includes such functionality.

〔裏打シート〕
裏打シート４は、主とし加飾シートとしての総厚の調整（確保）等の為に適宜設ける。また、裏打シート４は、被着体との密着性向上を図る為に設けることもできる。この様な裏打シート４は、光輝性層の裏側に熱可塑性樹脂シートを積層することで形成できる。該熱可塑性樹脂としては、ポリプロピレン等の各種ポリオレフィン系樹脂、塩素化ポリオレフィン系樹脂、ＡＢＳ樹脂、或いは例えばポリオレフィン系樹脂とＡＢＳ樹脂との混合樹脂等と異種樹脂同士の混合樹脂を、被着体の材料等に応じて適宜採用すれば良い。特に加飾シートを真空成形加工する場合は、成形性を阻害し無い様、透明樹脂基材シート、またそれが２層積層体の場合にはその第２透明樹脂基材シートと、同様の樹脂で構成することが好ましい。 [Backing sheet]
The backing sheet 4 is provided as appropriate mainly for adjusting (securing) the total thickness as a decorative sheet. The backing sheet 4 can also be provided in order to improve the adhesion with the adherend. Such a backing sheet 4 can be formed by laminating a thermoplastic resin sheet on the back side of the glittering layer. Examples of the thermoplastic resin include various polyolefin resins such as polypropylene, chlorinated polyolefin resins, ABS resins, or mixed resins of different resins and mixed resins of polyolefin resins and ABS resins, for example. What is necessary is just to employ | adopt suitably according to material etc. In particular, when vacuum-decorating a decorative sheet, a transparent resin base sheet, and if it is a two-layer laminate, the same resin as the second transparent resin base sheet so as not to impair the moldability It is preferable to comprise.

裏打シートを積層するには、予め熱可塑性樹脂シートとして用意した樹脂シートを、ウレタン樹脂等による公知の接着剤で、ドライラミネーション法等の公知の積層法で貼り合せれば良い。具体的には、例えば、透明樹脂基材シートと光輝性層との積層体の光輝性層面に対して、接着剤で熱可塑性樹脂シートを貼り合せる。なお、裏打シートの熱可塑性樹脂シートは、該熱可塑性樹脂の溶融押出塗工によって成膜と同時に積層しても良い。なお、裏打シートの厚みは、総厚確保や被着体との密着性向上等、その目的にもよるが、総厚確保を図る点では通常は２０〜５００μｍ程度である。   In order to laminate the backing sheet, a resin sheet prepared in advance as a thermoplastic resin sheet may be bonded with a known adhesive such as a urethane resin by a known lamination method such as a dry lamination method. Specifically, for example, a thermoplastic resin sheet is bonded to the glitter layer surface of the laminate of the transparent resin base sheet and the glitter layer with an adhesive. The thermoplastic resin sheet of the backing sheet may be laminated simultaneously with film formation by melt extrusion coating of the thermoplastic resin. The thickness of the backing sheet is usually about 20 to 500 μm in terms of ensuring the total thickness although it depends on the purpose such as ensuring the total thickness and improving the adhesion to the adherend.

また、裏打シートは、それにより被着体を隠蔽する、隠蔽性の補強機能も担うことができる。それは、光輝性層が薄膜で上記隠蔽性が不足の場合、或いは加飾シートを成形した際に、部分的に光輝性層が伸ばされて薄膜化したり、龜裂が入ったりして隠蔽性が低下することが有る。これを裏打シートで補うことが出来る。裏打シートを隠蔽性とするには、その熱可塑性樹脂中に、隠蔽性付与の為に高隠蔽性の顔料を添加すれば良い。高隠蔽性顔料としては、チタン白、カーボンブラック（墨）等が挙げられる。この場合、これに必要に応じ、適宜他の着色剤を添加しても良い。   Further, the backing sheet can also serve as a concealing reinforcing function that conceals the adherend. If the glittering layer is a thin film and the above concealing property is insufficient, or when a decorative sheet is formed, the glittering layer is partially stretched to become a thin film or cracked, resulting in concealment. May decrease. This can be supplemented with a backing sheet. In order to make the backing sheet concealable, a highly concealable pigment may be added to the thermoplastic resin in order to impart concealability. Examples of the high hiding pigment include titanium white and carbon black (black). In this case, if necessary, other colorants may be added appropriately.

なお、裏打シート有無に拘わらず、加飾シートの最裏面には、必要に応じ適宜、公知の接着剤層を設けることができる。接着剤層には、例えば、アクリル系樹脂、塩化ビニル−酢酸ビニル共重合体、塩素化ポリオレフィン樹脂、ウレタン樹脂、ゴム系樹脂等が用いられる。   In addition, a well-known adhesive layer can be suitably provided in the outermost back surface of a decorating sheet irrespective of the presence or absence of a backing sheet. For the adhesive layer, for example, acrylic resin, vinyl chloride-vinyl acetate copolymer, chlorinated polyolefin resin, urethane resin, rubber resin, and the like are used.

〔加飾シートの被着体〕
本発明の加飾シートは、種々の被着体に積層してそれを加飾する用途に使用され得るが、その被着体としては特に制限はない。例えば、被着体の材料や形状は、任意である。例えば、その材料としては、樹脂、木質材料、金属、非金属無機材料、紙、布帛等がある。また、その形状もシート（乃至はフィルム）、板、立体物等と任意である。 [Adherence of decorative sheet]
The decorating sheet of the present invention can be used for the purpose of laminating and decorating various adherends, but the adherend is not particularly limited. For example, the material and shape of the adherend are arbitrary. Examples of the material include resin, wood material, metal, non-metallic inorganic material, paper, and fabric. Moreover, the shape is arbitrary with a sheet | seat (or film), a board, a solid thing, etc.

加飾成形品：
本発明の加飾成形品は、被着体として樹脂成形物の表面に、前記本発明の加飾シートが、その透明樹脂基材シート側が表面側に位置する様にして積層された構成の加飾成形品である。その際、加飾シート部分の高光沢領域に於いては、例えば、透明樹脂基材シートの裏面側は、裏面方向に向かって凸になっており、且つその部分の表面側は平坦面や、表面方向に向かって凹になっている形状等である。 Decorative molded products:
The decorative molded product of the present invention has a structure in which the decorative sheet of the present invention is laminated on the surface of a resin molding as an adherend so that the transparent resin base sheet side is positioned on the surface side. It is a decorative molded product. At that time, in the high gloss region of the decorative sheet portion, for example, the back surface side of the transparent resin base material sheet is convex toward the back surface direction, and the surface side of the portion is a flat surface, For example, the shape is concave toward the surface.

なお、前記加飾シート自体に於いては、その被着体として特に制限は無いが、該加飾シートが、その効果を奏する点で、好ましい被着体、及びそれへの積層方法は、被着体が樹脂成形物であり、積層方法は該樹脂成形物表面に対して、加飾シートを真空成形によって所望の成形品形状に予備成形した後、射出成形型内で樹脂成形物表面に加飾シートを積層一体化する、所謂射出成形同時加飾法を用いて積層する場合である。この場合、本発明の加飾シートは、シート表面が平坦乃至は略平坦であっでも視覚的効果で凹凸模様の立体意匠感が発現する為、真空成形時、射出成形時に、エンボス加工による実在の凹凸形状の消失の虞が無く、良好な凹凸模様を視覚的に付与出来る。   In the decorative sheet itself, the adherend is not particularly limited. However, in terms of the effect of the decorative sheet, a preferred adherend and a method of laminating the adherend are: The adhering body is a resin molded product, and the lamination method is that the decorative sheet is preformed on the surface of the resin molded product by vacuum forming into a desired molded product shape and then applied to the surface of the resin molded product in an injection mold. In this case, the decorative sheets are laminated and integrated using a so-called injection molding simultaneous decorating method. In this case, the decorative sheet of the present invention exhibits a three-dimensional design feeling of the uneven pattern with a visual effect even if the sheet surface is flat or substantially flat. There is no risk of the concavo-convex shape disappearing, and a good concavo-convex pattern can be visually imparted.

上記の様な効果を特に良好に奏するのは、透明樹脂基材シート１を、表面側に位置する第１透明樹脂基材シート１１、及び裏面側に位置する第２透明樹脂基材シート１２の２層積層体で構成し、第１透明樹脂基材シートを結晶性樹脂で構成すると共に第２透明樹脂基材シートを非結晶性樹脂で構成し、且つ第１透明樹脂基材シートの融点を第２透明樹脂基材シートの軟化温度よりも大である様に構成した形態の加飾シートを採用した場合である。   The above-described effects are particularly favorably achieved by the transparent resin substrate sheet 1 having the first transparent resin substrate sheet 11 positioned on the front surface side and the second transparent resin substrate sheet 12 positioned on the back surface side. It is composed of a two-layer laminate, the first transparent resin base sheet is composed of a crystalline resin, the second transparent resin base sheet is composed of an amorphous resin, and the melting point of the first transparent resin base sheet is This is a case where a decorative sheet having a configuration configured to be higher than the softening temperature of the second transparent resin base sheet is employed.

ここで、樹脂成形物５を被着体として、その表面に前記の如き本発明の加飾シートＳを積層した構成の加飾成形品Ｐｄの１例を、図４（Ａ）の一部切欠断面図、及びその断面の一部拡大図を図４（Ｂ）に示す。この様な、加飾成形品の代表的製造方法の１つが、射出成形同時加飾法である。なお、図４（Ｂ）では、透明樹脂基材シート１が第１透明樹脂基材シート１１と第２透明樹脂基材シート１２との２層積層体構成の場合である。なお、加飾成形品の形状は、シート積層面は凹凸面等の非平面、或いは平面の立体物である。また、加飾成形品の形状は、板状（平板、曲面板等）、柱状、三次元立体物等と任意である。   Here, an example of a decorative molded product Pd having a structure in which the resin molded product 5 is used as an adherend and the decorative sheet S of the present invention as described above is laminated on the surface thereof, is partially cut away in FIG. A cross-sectional view and a partially enlarged view of the cross-section are shown in FIG. One of the typical methods for producing such a decorative molded product is an injection molding simultaneous decoration method. In addition, in FIG. 4 (B), the transparent resin base material sheet 1 is a case of the 2 layer laminated body structure of the 1st transparent resin base material sheet 11 and the 2nd transparent resin base material sheet 12. FIG. In addition, the shape of the decorative molded product is a non-planar surface such as a concavo-convex surface or a planar solid object. Further, the shape of the decorative molded product is arbitrary such as a plate shape (a flat plate, a curved plate, etc.), a columnar shape, a three-dimensional solid object, and the like.

なお、樹脂成形物となる射出樹脂としては、基本的には特に制限はなく公知の樹脂で良い。製品の要求物性やコスト等に応じて選定すれば良い。熱可塑性樹脂であれば、ＡＢＳ（アクリロニトリル−ブタジエン−スチレン共重合体）樹脂、スチレン樹脂、アクリル樹脂、塩化ビニル樹脂、ポリカーボネート樹脂、ポリオレフィン系樹脂等である。また、硬化性樹脂であれば、２液硬化型の樹脂、例えば、ウレタン樹脂、不飽和ポリエステル樹脂、エポキシ樹脂等の未硬化樹脂液等である。熱可塑性樹脂は加熱熔融して流動状態で射出し、また硬化性樹脂は（その未硬化物を）室温又は適宜加熱して流動状態で射出する。また、射出樹脂には、用途に応じて適宜、着色剤、充填剤、安定剤、滑剤等の公知の各種添加剤を含有させる。   In addition, as injection resin used as a resin molding, there is no restriction | limiting in particular fundamentally and well-known resin may be sufficient. It may be selected according to the required physical properties and cost of the product. Examples of the thermoplastic resin include ABS (acrylonitrile-butadiene-styrene copolymer) resin, styrene resin, acrylic resin, vinyl chloride resin, polycarbonate resin, and polyolefin resin. Further, in the case of a curable resin, it is a two-component curable resin, for example, an uncured resin solution such as a urethane resin, an unsaturated polyester resin, or an epoxy resin. The thermoplastic resin is melted by heating and injected in a fluid state, and the curable resin (its uncured product) is injected at room temperature or appropriately heated and injected in a fluid state. In addition, the injection resin contains various known additives such as colorants, fillers, stabilizers, lubricants, and the like as appropriate according to the application.

射出成形同時加飾方法：
本発明による射出成形同時加飾方法では、いわゆる射出成形同時加飾方法に対して、それに用いる加飾シートのシート作成工程（シート材料及び方法）を特定の工程とし、且つ、更により好ましくは、該シートの予備成形としての真空形成工程も特定の工程とした加飾方法である。以下、本射出成形同時加飾方法について、シート作成工程、真空成形工程、射出成形工程の順に説明する。 Injection molding simultaneous decoration method:
In the injection molding simultaneous decorating method according to the present invention, the so-called injection molding simultaneous decorating method is a specific step for the sheet creating process (sheet material and method) of the decorating sheet used therein, and even more preferably, The vacuum forming process as the preforming of the sheet is also a decorating method with a specific process. Hereinafter, the present injection molding simultaneous decorating method will be described in the order of a sheet creation process, a vacuum molding process, and an injection molding process.

〔シート作成工程〕
シート作成工程は、前述した如き加飾シートを作製して用意する工程である。従って、本発明によるシート作成工程では、加飾シートの層及びその樹脂組成と融点や軟化温度、また凹凸賦形のエンボス加工温度等を特定したシート作成工程となる。つまり、シート作成工程では、加飾シートとして、加飾成形品の状態で外側に位置させる透明樹脂基材シートと光輝性層とを少なくとも含む積層体を加熱し、エンボス加工により、透明樹脂基材シート表面の高光沢領域及び低光沢領域、並びに該高光沢領域と低光沢領域とに対応した透明樹脂基材シートの厚みの厚薄を形成して、加飾シートを用意する。その際、より好ましくは、後の特定の真空成形工程と組み合わせる構成として、透明樹脂基材シートが、表面側に位置する第１透明樹脂基材シート、及び裏面側に位置する第２透明樹脂基材シートの２層の積層体から成り、第１透明樹脂基材シートは結晶性樹脂から成り、且つ第２透明樹脂基材シートは非結晶性樹脂から成り、第１透明樹脂基材シートの融点は第２透明樹脂基材シートの軟化温度よりも大である、透明樹脂基材シートが特定の２層積層体構成の加飾シートを用意する。なお、該加飾シートの好適な具体例を挙げれば、前述の如く、第１透明樹脂基材シートがフッ化ビニリデン樹脂を含み、第２透明樹脂基材シートがアクリル系樹脂を含む構成である。 [Sheet creation process]
The sheet creation process is a process for preparing and preparing a decorative sheet as described above. Therefore, the sheet creation process according to the present invention is a sheet creation process in which the decorative sheet layer and its resin composition, melting point, softening temperature, embossing temperature for uneven shaping are specified. That is, in the sheet preparation process, as a decorative sheet, a laminate including at least a transparent resin base sheet and a glittering layer positioned outside in the state of a decorative molded product is heated and embossed to obtain a transparent resin base material. A decorative sheet is prepared by forming a high-gloss area and a low-gloss area on the surface of the sheet, and a transparent resin base material sheet corresponding to the high-gloss area and the low-gloss area. In that case, more preferably, as a configuration to be combined with a specific vacuum forming step later, the transparent resin base sheet is a first transparent resin base sheet located on the front side, and a second transparent resin base located on the back side. The first transparent resin base sheet is made of a crystalline resin, the second transparent resin base sheet is made of an amorphous resin, and the melting point of the first transparent resin base sheet Prepares a decorative sheet having a specific two-layer laminate structure in which the transparent resin base sheet is higher than the softening temperature of the second transparent resin base sheet. In addition, if the suitable specific example of this decorating sheet is given, as above-mentioned, it is the structure in which a 1st transparent resin base material sheet contains a vinylidene fluoride resin, and a 2nd transparent resin base material sheet contains acrylic resin. .

〔真空成形工程〕
本発明では、以上の如き加飾シートを用いて、シート予備成形有りの形態で射出成形同時加飾する。その際に、該シート予備成形の為の真空成形工程にて、シート加熱温度は、透明樹脂基材シートが上記特定の２層積層体構成の加飾シートを用いる場合には、好ましくは、その第２透明樹脂基材シートの軟化温度以上であり且つ第１透明樹脂基材シートの融点未満の温度とする。これによって、シート予備成形の為の真空成形時の成形性を確保すると共に、真空成形後の凹凸形状の維持もできる様になる。 [Vacuum forming process]
In the present invention, the decorative sheet as described above is used to simultaneously decorate by injection molding in a form with sheet preforming. At that time, in the vacuum forming step for the sheet preforming, when the transparent resin base sheet uses the decorative sheet having the specific two-layer laminate structure, the sheet heating temperature is preferably The temperature is equal to or higher than the softening temperature of the second transparent resin base sheet and lower than the melting point of the first transparent resin base sheet. As a result, it is possible to ensure the formability during vacuum forming for sheet preforming and to maintain the uneven shape after vacuum forming.

加飾シートを予備成形する為の真空成形工程（真空圧空成形も包含する）は、大別して、真空成形型を射出成形型と兼用して該射出成形型上で真空成形を行うインライン予備成形の形態と、真空成形型は射出成形型とは別型で、つまり射出成形機の外で真空成形を行うオフライン予備成形の形態のどちらでも良い。なお、オフライン予備成形は、インライン予備成形に比べて、一般的に、加飾成形品サイズが大きい場合、シート厚みが厚い場合等に適している。   The vacuum forming process (including vacuum / pressure forming) for preforming a decorative sheet is roughly divided into in-line pre-molding in which a vacuum mold is used as an injection mold and vacuum forming is performed on the injection mold. The form and the vacuum mold may be different from the injection mold, that is, the off-line pre-form where vacuum forming is performed outside the injection molding machine. Note that off-line pre-formation is generally suitable when the decorative molded product size is large or the sheet thickness is thick, as compared with in-line pre-formation.

そして、真空成形時のシート加熱温度は、通常は、インライン予備成形では１００〜１２０℃程度、オフライン予備成形では１４０〜１７０℃程度である。従って、例えば、透明樹脂基材シートが特定の２層積層体構成の加飾シートを用いる場合では、第１透明樹脂基材シートにフッ化ビニリデン樹脂を用い、また第２透明樹脂基材シートにアクリル系樹脂を用いた構成等の加飾シートでは、通常のインライン予備成形或いはオフライン予備形成、どちらの形態にも適用できる。なお、上記予備成形温度は、一般的な温度を示すものであり、加飾シートに用いた樹脂に合わせて、上記範囲外の温度で行っても良い。   The sheet heating temperature at the time of vacuum forming is usually about 100 to 120 ° C. for in-line pre-forming and about 140 to 170 ° C. for off-line pre-forming. Therefore, for example, when the transparent resin base sheet uses a decorative sheet having a specific two-layer laminate structure, a vinylidene fluoride resin is used for the first transparent resin base sheet, and the second transparent resin base sheet is used. A decorative sheet having a configuration using an acrylic resin can be applied to both normal in-line preforming and offline preforming. In addition, the said preforming temperature shows general temperature and you may carry out at the temperature outside the said range according to resin used for the decorating sheet.

〔射出成形工程〕
射出成形工程では、上記の如き真空成形工程によって予備成形された加飾シートを、射出成形型内に装填された状態で、雌雄一対の射出成形型を型締めした後、射出成形型のキャビティ内に流動状態の樹脂を射出し充填して固化させて、樹脂成形物の表面に加飾シートを積層一体化する工程である。そして、樹脂固化後、型開きして、目的とする加飾成形品を取出す。該加飾成形品には、前述如き加飾シートによって、凹凸模様を視覚的に感じさせる立体意匠感が付与されている。 [Injection molding process]
In the injection molding process, after the decorative sheet preformed by the vacuum molding process as described above is loaded in the injection mold, the pair of male and female injection molds are clamped, and then in the cavity of the injection mold The resin in a fluid state is injected, filled and solidified, and the decorative sheet is laminated and integrated on the surface of the resin molded product. Then, after the resin is solidified, the mold is opened to take out the target decorative molded product. The decorative molded product is given a three-dimensional design feeling that makes the uneven pattern visually feel by the decorative sheet as described above.

なお、射出成形型内に射出する射出樹脂は、通常は加熱溶融させて流動状態となっており、その温度は２００℃以上に及ぶことがあるが、この様な高温の射出樹脂であっても、加飾シートが有する凹凸形状は維持することができる。つまり、射出成形時の射出樹脂の熱は、真空成形時の熱程には影響しない。例えば、射出樹脂がＡＢＳ樹脂の場合、加飾シートは、射出樹脂温度は２００〜２４０℃程度、また射出成形型の型温度は６０℃程度の温度条件下に晒されるが、そのときの熱が加飾シートに加わるのは一瞬であり、真空成形工程に凹凸形状が耐えられれば、基本的には加飾成形品上では凹凸形状は残すことができるからである。   The injection resin injected into the injection mold is usually heated and melted to be in a fluid state, and its temperature may reach 200 ° C. or higher. Even such a high-temperature injection resin may be used. The uneven shape of the decorative sheet can be maintained. That is, the heat of the injection resin at the time of injection molding does not affect the heat at the time of vacuum molding. For example, when the injection resin is an ABS resin, the decorative sheet is exposed to a temperature condition in which the injection resin temperature is about 200 to 240 ° C and the mold temperature of the injection mold is about 60 ° C. This is because the decorative sheet is applied for a moment, and if the uneven shape can withstand the vacuum forming process, the uneven shape can basically remain on the decorative molded product.

〔その他〕
ここで、図６の概念図を用いて、いわゆる射出成形同時加飾方法について、概説しておく。なお、ここで説明する形態は、射出成形型上で真空成形工程を行うインライン予備成形の形態である。 [Others]
Here, the so-called injection molding simultaneous decorating method will be outlined with reference to the conceptual diagram of FIG. In addition, the form demonstrated here is a form of the in-line preforming which performs a vacuum forming process on an injection mold.

先ず、図６（Ａ）の如く、射出成形型としては、射出ノズルと連通する湯道（ランナー）及び湯口（ゲート）を有する型Ｍａと、キャビティ面に吸引孔４１を有し加飾シートの真空成形工程用の予備成形型を兼用する型Ｍｂの一対の成形型を用いる。これらの型は鉄等の金属、或いはセラミックスからなる。型開き状態に於いて両型Ｍａ、Ｍｂ間に加飾シートＳを供給し、型Ｍｂに加飾シートＳを平面視枠状のシートクランプ４２で押圧する等して固定する。この際、加飾シートの（透明樹脂基材シートに対する）光輝性層側の裏面側は、図面右側の射出樹脂側となる様にする事はもちろんである。次いで、図６（Ｂ）の如く、型外部（図面では型上方）の退避位置で退避させておいたヒータ４３を、適宜移動させて両型間に挿入し、ヒータ４３で加飾シートを加熱軟化させる。加熱は例えば非接触の輻射加熱とするが、接触による伝導加熱でも良い。そして、吸引孔から吸引して真空成形して、加飾シートを型Ｍｂのキャビティ面に沿わせ予備成形する。次いで、ヒータを両型間から退避させ、図６（Ｃ）の如く両型を型締めし、両型で形成されるキャビティに加熱熔融状態等の流動状態の樹脂を充填する。そして、樹脂が冷却等によって固化した後、型開きして成形物を取り出す。そして、加飾シートの不要部分は適宜トリミングすれば、図４の如く、樹脂成形物５に加飾シートＳが積層され加飾された加飾成形品Ｐｄが得られるという方法である。そして、本発明では、加飾シートによって、凹凸模様を視覚的に感じさせる立体意匠感の表現が加飾成形品でも可能となる。   First, as shown in FIG. 6A, as an injection mold, a mold Ma having a runner communicating with the injection nozzle and a gate (gate), a suction hole 41 on the cavity surface, and a decorative sheet A pair of molds of a mold Mb that also serves as a preforming mold for a vacuum forming process is used. These molds are made of metal such as iron or ceramics. In the mold open state, the decorative sheet S is supplied between both molds Ma and Mb, and the decorative sheet S is fixed to the mold Mb by pressing it with a sheet clamp 42 having a frame shape in plan view. At this time, it is a matter of course that the back side of the decorative sheet (relative to the transparent resin base sheet) on the side of the glittering layer is the injection resin side on the right side of the drawing. Next, as shown in FIG. 6B, the heater 43 that has been retracted at the retracted position outside the mold (in the drawing, above the mold) is appropriately moved and inserted between both molds, and the decorative sheet is heated by the heater 43. Soften. The heating is, for example, non-contact radiation heating, but may be conduction heating by contact. Then, vacuuming is performed by suction from the suction hole, and the decorative sheet is preformed along the cavity surface of the mold Mb. Next, the heater is retracted from between both molds, and both molds are clamped as shown in FIG. 6C, and a cavity formed by both molds is filled with a resin in a fluid state such as a heat-melted state. And after resin solidifies by cooling etc., a mold is opened and a molding is taken out. And if the unnecessary part of a decorating sheet is trimmed suitably, as shown in FIG. 4, the decorating molded product Pd by which the decorating sheet S was laminated | stacked on the resin molding 5 and decorating is obtained. In the present invention, the decorative sheet enables the expression of a three-dimensional design that makes the uneven pattern visually feel by the decorative sheet.

図３の如き構成の加飾シートＳ５を次の様にして作製した。先ず、結晶性樹脂のフッ素系樹脂であるフッ化ビニリデン樹脂（融点Ｔｍ１６０℃）と、非結晶性樹脂であるアクリル系樹脂（ＶＩＣＡＴ軟化温度Ｔｓ１１８℃）とを、２層共押出しして、厚さ８μｍの第１透明樹脂基材シート１１と厚さ７２μｍの第２透明樹脂基材シート１２とが積層した透明樹脂基材シート１を作製した。   A decorative sheet S5 having the structure as shown in FIG. 3 was produced as follows. First, a vinylidene fluoride resin (melting point Tm 160 ° C.) which is a fluororesin of a crystalline resin and an acrylic resin (VICAT softening temperature Ts 118 ° C.) which is an amorphous resin are coextruded to obtain a thickness. A transparent resin substrate sheet 1 in which a first transparent resin substrate sheet 11 having a thickness of 8 μm and a second transparent resin substrate sheet 12 having a thickness of 72 μm were laminated was prepared.

次に、上記透明樹脂基材シート１の第２透明樹脂基材シート１２側の面に、アクリル系樹脂をバインダー樹脂とし、光輝性顔料としてアルミニウムの鱗片状箔片（平均粒径１４μｍ）を添加したシルバーインキによるグラビア印刷で光輝性層２を形成し、更に、アクリル系樹脂と塩化ビニル−酢酸ビニル共重合体との１：１質量比の混合樹脂からなるインキをグラビア印刷にて２回刷りして接着剤層（不図示）を形成して印刷シートとした。   Next, on the surface of the transparent resin base sheet 1 on the second transparent resin base sheet 12 side, an acrylic resin is used as a binder resin, and an aluminum scaly foil piece (average particle size 14 μm) is added as a bright pigment. The glitter layer 2 is formed by gravure printing using the silver ink, and further, an ink composed of a mixed resin of 1: 1 mass ratio of acrylic resin and vinyl chloride-vinyl acetate copolymer is printed twice by gravure printing. Then, an adhesive layer (not shown) was formed to obtain a printed sheet.

次に、前述した如き図５に示す様なエンボス加工により、フッ化ビニリデン樹脂の第１透明樹脂基材シート１１の表面には、中心線平均粗さＲａ５μｍの微小凹凸の粗面で表面から見て平坦な低光沢領域Ｌと、中心線平均粗さＲａ０．１μｍの平滑面で表面から見て凹部となった高光沢領域Ｈとを形成した。凹部と凸部との高低差は１０μであった。又、低光沢領域Ｌ、及び高光沢領域Ｈは各々幅が１００〜２００μｍの細長い縞状領域であり、両領域が交互に配列することによって、全体としてヘアライン模様となっている。一方、アクリル系樹脂の第２透明樹脂基材シート１２、及び光輝層２に対しては、低光沢領域Ｌに対向する部分に裏面から見て凹部領域を、高光沢領域Ｈに対向する部分に裏面から見て凸部領域を形成した。両領域の高低差は８０μｍであった。なお、エンボス加工時の第１透明樹脂基材シート１１の表面温度は、赤外線輻射ヒータの加熱により１８０℃とした。また、第２透明樹脂基材シート１２は、表面温度１５０℃の加熱金属ドラムからの伝導熱で加熱した。   Next, by the embossing as shown in FIG. 5 as described above, the surface of the first transparent resin substrate sheet 11 made of vinylidene fluoride resin is viewed from the surface with a rough surface with minute irregularities having a center line average roughness Ra of 5 μm. And a flat low-gloss region L and a high-gloss region H having a concave surface when viewed from the surface on a smooth surface having a center line average roughness Ra of 0.1 μm. The height difference between the concave portion and the convex portion was 10 μm. The low gloss region L and the high gloss region H are elongated striped regions each having a width of 100 to 200 μm, and the two regions are alternately arranged to form a hairline pattern as a whole. On the other hand, for the second transparent resin base sheet 12 made of acrylic resin and the glitter layer 2, the concave region as viewed from the back side is formed in the portion facing the low gloss region L, and the portion facing the high gloss region H is formed. A convex region was formed when viewed from the back side. The height difference between the two regions was 80 μm. In addition, the surface temperature of the 1st transparent resin base material sheet 11 at the time of embossing was 180 degreeC by the heating of the infrared radiation heater. Moreover, the 2nd transparent resin base material sheet 12 was heated with the heat of conduction from the heating metal drum with the surface temperature of 150 degreeC.

次に、上記で得た加飾シートＳを、射出成形型を真空成形型と兼用するインライン予備成形の形態で射出成形同時加飾をすべく、射出成形同時加飾装置に、光輝性層側が射出成形型の雄型のゲート側を向くようにして装着して、真空成形型とする射出成形型の雌型上で、シート加熱温度１２０℃の条件で、加飾シートをヒータによる非接触加熱で加熱軟化させた後、射出成形型側から真空吸引して、加飾シートを該射出成形型の型形状に真空成形した。真空成形後の加飾シートについて、凹凸模様の状況を確認したところ、その凹凸形状は残っていた。   Next, in order to perform the injection molding simultaneous decorating of the decorative sheet S obtained above in the form of in-line preforming in which the injection mold is also used as the vacuum molding mold, the glittering layer side is provided on the injection molding simultaneous decorating apparatus. Non-contact heating of a decorative sheet with a heater on the condition of a sheet heating temperature of 120 ° C. on a female mold of an injection mold that is mounted so as to face the gate side of the male mold of the injection mold Then, the decorative sheet was vacuum molded into the shape of the injection mold by vacuum suction from the injection mold side. About the decorative sheet after vacuum forming, when the state of the concavo-convex pattern was confirmed, the concavo-convex shape remained.

この後、射出成形型を型締めして、ＡＢＳ樹脂を射出成形した。なお、射出成形型の型温度は６０℃、射出樹脂温度は２４０℃の条件で行った。型開き後、加飾成形品を取出し、該成形品に於ける凹凸模様の残存状況を確認したところ、加飾成形品にはその表面の微小な凹凸も含めて凹凸は残っており、凹凸模様を視覚的に感じさせる立体的意匠感が表現され、高意匠の成形品となっていた。   Thereafter, the injection mold was clamped and the ABS resin was injection molded. The mold temperature of the injection mold was 60 ° C., and the injection resin temperature was 240 ° C. After opening the mold, the decorative molded product is taken out, and when the remaining state of the concavo-convex pattern in the molded product is confirmed, the concavo-convex pattern is left on the decorative molded product, including minute irregularities on the surface. A three-dimensional design feeling that makes you feel visually is expressed, and it has become a highly designed molded product.

〔比較例１〕
実施例１に於いて、第１透明樹脂基材シートと第２透明樹脂基材シートとを積層した２層積層体構成の透明樹脂基材シートの代わりに、アクリル系樹脂（ＶＩＣＡＴ軟化温度１１８℃）からなる単層で厚さ８０μｍの透明樹脂基材シートを用いた。この他は、実施例１と同様にして、加飾シートを作製した。そして、実施例１と同様の射出成形同時加飾方法によって、加飾成形品の作製を試みたその結果、真空成形後の加飾シートには、表面の微小な凹凸も含めて凹凸形状が消失し、凹凸模様を視覚的に感じさせる立体的意匠感が消失していた。この為、次の射出成形工程は中止した。 [Comparative Example 1]
In Example 1, instead of the transparent resin base sheet having a two-layer laminate structure in which the first transparent resin base sheet and the second transparent resin base sheet are stacked, an acrylic resin (VICAT softening temperature 118 ° C. A transparent resin base sheet with a thickness of 80 μm was used. Other than this, a decorative sheet was produced in the same manner as in Example 1. And as a result of trying production of a decoration molded product by the injection molding simultaneous decorating method similar to Example 1, as a result, the uneven | corrugated shape including a micro unevenness | corrugation of a surface lose | disappears in the decorative sheet after vacuum forming. However, the three-dimensional design feeling that makes the concavo-convex pattern feel visually disappeared. For this reason, the next injection molding process was stopped.

１ 透明樹脂基材シート
１１ 第１透明樹脂基材シート
１２ 第２透明樹脂基材シート
２ 光輝性層
３ 装飾層
４ 裏打シート
５ 樹脂成形物
４１ 吸引孔
４２ シートクランプ
４３ ヒータ
Ａ 低エンボス圧領域
Ｂ 高エンボス圧領域
Ｃ ゴム圧胴
Ｅ 金属エンボス版
ｅｐ （エンボス版の）凸部
ｅｒ （エンボス版の）凹部
Ｆｒ 粗面
Ｈ 高光沢領域
Ｈｆ 高光沢領域（平坦）
Ｈｐ 高光沢領域（凸形状）
Ｈｒ 高光沢領域（凹形状）
Ｌ 低光沢領域
Ｍａ 射出成形型（雄型）
Ｍｂ 射出成形型（雌型）
Ｐｄ 加飾成形品
ｐ 凸出部
Ｓ、Ｓ１〜Ｓ５ 加飾シート DESCRIPTION OF SYMBOLS 1 Transparent resin base material sheet 11 1st transparent resin base material sheet 12 2nd transparent resin base material sheet 2 Glossy layer 3 Decoration layer 4 Backing sheet 5 Resin molding 41 Suction hole 42 Sheet clamp 43 Heater A Low embossing pressure area B High embossed pressure area C Rubber impression cylinder E Metal embossed plate ep (embossed plate) convex portion er (embossed plate) concave portion Fr Rough surface H High gloss region Hf High gloss region (flat)
Hp High gloss area (convex shape)
Hr High-gloss area (concave shape)
L Low gloss area Ma Injection mold (male mold)
Mb injection mold (female)
Pd decorative molded product p protruding part S, S1 to S5 decorative sheet

Claims (4)

透明樹脂基材シートの裏面に光輝性層を積層し、かつ最裏面に射出成形樹脂と射出樹脂温度で接着可能な接着剤層を設けて成り、透明樹脂基材シートの表面は、周囲に比べて相対的に光沢の高い高光沢領域と周囲に比べて相対的に光沢の低い低光沢領域とに区画され、しかも、透明樹脂基材シートの厚みは、高光沢領域に於いては相対的に厚く、且つ低光沢領域に於いて相対的に薄く形成されて成り、高光沢領域及び低光沢領域に対応した凹凸模様を視覚的に発現させている、射出成形用加飾シート。 Laminated with a glittering layer on the back side of the transparent resin base sheet, and provided with an adhesive layer that can be bonded to the injection molding resin and the injection resin temperature on the back side. The high-gloss area with relatively high gloss and the low-gloss area with relatively low gloss compared to the surrounding area, and the thickness of the transparent resin substrate sheet is relatively high in the high-gloss area. A decorative sheet for injection molding that is thick and formed relatively thin in a low-gloss area and visually expresses a concavo-convex pattern corresponding to a high-gloss area and a low-gloss area. 透明樹脂基材シートと光輝性層との間に、光輝性層の光輝性を完全には隠蔽しない程度の装飾層を有する、請求項１記載の射出成形用加飾シート。 The decorative sheet for injection molding according to claim 1, further comprising a decorative layer between the transparent resin base sheet and the glittering layer that does not completely hide the glitter of the glittering layer. 樹脂成形物表面に、請求項１、請求項２のいずれか１項に記載の射出成形用加飾シートが、その透明樹脂基材シート側が表面側に位置する様にして積層されて成る、加飾成形品。 The decorative sheet for injection molding according to any one of claims 1 and 2 is laminated on the surface of the resin molded product so that the transparent resin base sheet side is positioned on the surface side. Decorative molded product . 射出成形用加飾シートを用いて、真空成形工程と、射出成形工程とを経て、樹脂成形物の成形と同時にその表面に射出成形用加飾シートを一体化して、樹脂成形物を加飾成形品とする射出成形同時加飾方法に於いて、少なくとも、
（Ａ）透明樹脂基材シートと光輝性層とを含む積層体を加熱し、エンボス加工により、透明樹脂基材シート表面の高光沢領域及び低光沢領域、並びに該高光沢領域と低光沢領域とに対応した透明樹脂基材シートの厚みの厚薄を形成することによって、請求項１、請求項２のいずれか１項に記載の射出成形用加飾シートを製造する、シート作成工程、
（Ｂ）該射出成形用加飾シートを加熱軟化させて、所望の成形品形状に対応する形状に真空成形する、真空成形工程、
（Ｃ）真空成形された射出成形用加飾シートを、その表面側が射出成形型表面と対面する様にして、型締めした射出成形型内に装填された状態で、射出成形型内に流動状態の樹脂を射出充填して、該樹脂を固化させて、樹脂成形物表面に射出成形用加飾シートを積層一体化して、請求項３に記載の加飾成形品を得る、射出成形工程、
の各工程を此の順に行なう射出成形同時加飾方法。 Using the decorative sheet for injection molding, through the vacuum molding process and the injection molding process, simultaneously molding the resin molding, the decorative sheet for injection molding is integrated on the surface, and the resin molding is decorated. In the injection molding simultaneous decorating method as a product, at least,
(A) A laminated body including a transparent resin substrate sheet and a glitter layer is heated, and embossing is performed to obtain a high gloss region and a low gloss region on the surface of the transparent resin substrate sheet, and the high gloss region and the low gloss region. A sheet making process for producing the decorative sheet for injection molding according to any one of claims 1 and 2, by forming a thickness of the transparent resin base sheet corresponding to
(B) Vacuum forming step of heat-softening the decorative sheet for injection molding and vacuum forming into a shape corresponding to a desired molded product shape,
(C) The injection molded decorative sheet that has been vacuum-formed is loaded in the injection mold that has been clamped so that the surface side faces the surface of the injection mold, and is fluidized in the injection mold. An injection molding step of obtaining a decorative molded product according to claim 3, wherein the resin is solidified and the decorative sheet for injection molding is laminated and integrated on the surface of the resin molded product.
The injection molding simultaneous decoration method which performs each of these processes in this order .
JP2011208412A 2011-09-26 2011-09-26 Decorative sheet for injection molding, decorative molded product, and injection molding simultaneous decoration method Expired - Fee Related JP5152384B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011208412A JP5152384B2 (en) 2011-09-26 2011-09-26 Decorative sheet for injection molding, decorative molded product, and injection molding simultaneous decoration method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011208412A JP5152384B2 (en) 2011-09-26 2011-09-26 Decorative sheet for injection molding, decorative molded product, and injection molding simultaneous decoration method

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2009083929A Division JP5152070B2 (en) 2009-03-31 2009-03-31 Decorative sheet, decorative molded product, and injection molding simultaneous decoration method

Publications (2)

Publication Number Publication Date
JP2012045938A JP2012045938A (en) 2012-03-08
JP5152384B2 true JP5152384B2 (en) 2013-02-27

Family

ID=45901352

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011208412A Expired - Fee Related JP5152384B2 (en) 2011-09-26 2011-09-26 Decorative sheet for injection molding, decorative molded product, and injection molding simultaneous decoration method

Country Status (1)

Country Link
JP (1) JP5152384B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6410508B2 (en) 2014-05-20 2018-10-24 トリニティ工業株式会社 Decorative parts and manufacturing method thereof
JP7124745B2 (en) * 2019-02-08 2022-08-24 豊田合成株式会社 Method for manufacturing plated resin molded product

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0811435B2 (en) * 1991-05-17 1996-02-07 大日本印刷株式会社 Cosmetic material
JP4486191B2 (en) * 1999-10-21 2010-06-23 ロンシール工業株式会社 Decorative sheet

Also Published As

Publication number Publication date
JP2012045938A (en) 2012-03-08

Similar Documents

Publication Publication Date Title
JP4319882B2 (en) Decorative sheet, decorative molded product, and injection molding simultaneous decoration method
JP6481315B2 (en) Decorative sheet
JP4951895B2 (en) Decorative molded product and its manufacturing method
JP2014184726A (en) Decorative sheet, simultaneous injection molding decorative method and decorative molding article
JP5119638B2 (en) Irregular decorative injection molded product
JP5396966B2 (en) Decorative sheet and decorative resin molded product
JP5152384B2 (en) Decorative sheet for injection molding, decorative molded product, and injection molding simultaneous decoration method
JP5152070B2 (en) Decorative sheet, decorative molded product, and injection molding simultaneous decoration method
JP4459770B2 (en) Embossed tuning film, method for producing the same, and laminate obtained by laminating the same
JP4357804B2 (en) Molding decoration sheet and injection molding simultaneous decoration method
JP4811617B2 (en) Injection molding simultaneous decoration method
JP5194681B2 (en) Manufacturing method of embossed decorative injection molded products
KR20090033060A (en) Production process for insert decorated molding
JP6064740B2 (en) Decorative sheet and decorative resin molded product
JP4028337B2 (en) Injection molding simultaneous decoration sheet and injection molding simultaneous decoration method
JP5240358B2 (en) Irregular decorative injection molded product
JP5150988B2 (en) Decorative sheet manufacturing method
JP4268378B2 (en) Injection molding simultaneous decoration method
JP5262061B2 (en) Manufacturing method of insert decorative molded product
JP6677329B2 (en) Decorative sheet
JP2023053873A (en) decorative sheet
JP2012236421A (en) Decorative sheet

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20121029

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20121106

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20121119

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20151214

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5152384

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees