JP2017105124A - Decorative wood and manufacturing method of the same - Google Patents

Decorative wood and manufacturing method of the same Download PDF

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Publication number
JP2017105124A
JP2017105124A JP2015242393A JP2015242393A JP2017105124A JP 2017105124 A JP2017105124 A JP 2017105124A JP 2015242393 A JP2015242393 A JP 2015242393A JP 2015242393 A JP2015242393 A JP 2015242393A JP 2017105124 A JP2017105124 A JP 2017105124A
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Prior art keywords
layer
wood
clear layer
surface side
polyamide resin
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Japanese (ja)
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勝雄 石黒
Katsuo Ishiguro
勝雄 石黒
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Tokai Rika Co Ltd
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Tokai Rika Co Ltd
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Priority to JP2015242393A priority Critical patent/JP2017105124A/en
Priority to PCT/JP2016/084066 priority patent/WO2017098883A1/en
Publication of JP2017105124A publication Critical patent/JP2017105124A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/04—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B23/08—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class

Abstract

PROBLEM TO BE SOLVED: To provide a decorative wood which achieves high heat resistance and chemical resistance.SOLUTION: In a decorative wood 1, a transparent clear layer 8 is provided on a front surface side of a sliced veneer 2 that is a very thin wood. The clear layer 8 is formed by a polyamide resin.SELECTED DRAWING: Figure 1

Description

本発明は、木材の表面に透明なクリア層が設けられた化粧木材及び化粧木材の製造方法に関するものである。   The present invention relates to a decorative wood having a transparent clear layer provided on the surface of the wood and a method for producing the decorative wood.

従来から、例えば、木目ハンドル（ステアリングホイール）や木目パネル等の車両内装部品や家具等の各種物品には木目を意匠面として有するものがあり、それらには木材の表面側に透明なクリア層が設けられた化粧木材が用いられている。そして、例えば、化粧木材としては、極薄い木材である突板の表面にアクリル樹脂又はポリカーボネート樹脂からなるクリア層が設けられた木質化粧板等がある（例えば、特許文献１参照）。   2. Description of the Related Art Conventionally, for example, various interior parts such as a wood grain handle (steering wheel) and a wood panel, and various articles such as furniture have a grain as a design surface, and they have a transparent clear layer on the surface of the wood. The provided decorative wood is used. For example, as a decorative wood, there is a wooden decorative plate or the like in which a clear layer made of an acrylic resin or a polycarbonate resin is provided on the surface of a veneer that is an extremely thin wood (see, for example, Patent Document 1).

特開２０１５−１３９９８４号公報JP-A-2015-139984

しかしながら、上記した木質化粧板（化粧木材）では、クリア層がアクリル樹脂又はポリカーボネート樹脂からなるため、例えば、薬品等によって割れや白化が発生してしまう等、耐熱性や耐薬品性が弱かった。   However, in the above-mentioned wooden decorative board (decorated wood), the clear layer is made of an acrylic resin or a polycarbonate resin, so that the heat resistance and chemical resistance are weak, for example, cracking or whitening occurs due to chemicals or the like.

本発明は、上記問題点を解決するためになされたものであって、その目的は、耐熱性や耐薬品性が高い化粧木材及びその製造方法を提供することにある。   The present invention has been made to solve the above problems, and an object of the present invention is to provide a decorative wood having high heat resistance and chemical resistance and a method for producing the same.

上記課題を解決する化粧木材は、木材の表面側に透明なクリア層が設けられた化粧木材であって、前記クリア層はポリアミド樹脂からなる。
同構成によれば、木材の表面側に設けられる透明なクリア層は、ポリアミド樹脂からなるため、例えば、アクリル樹脂やポリカーボネート樹脂からなるものに比べて、耐熱性や耐薬品性を高くすることができる。 The decorative wood that solves the above problems is a decorative wood provided with a transparent clear layer on the surface side of the wood, and the clear layer is made of a polyamide resin.
According to this configuration, the transparent clear layer provided on the surface side of the wood is made of polyamide resin, so that heat resistance and chemical resistance can be increased as compared with, for example, those made of acrylic resin or polycarbonate resin. it can.

前記化粧木材において、前記クリア層の表面側に、ポリアミド樹脂よりも硬質な材料からなる透明なトップコート層が設けられることが好ましい。
同構成によれば、前記クリア層の表面側に、ポリアミド樹脂よりも硬質な材料からなる透明なトップコート層が設けられるため、例えば、トップコート層が設けられていないものに比べて、外表面の傷の発生を抑えることができる。 In the decorative wood, it is preferable that a transparent top coat layer made of a material harder than the polyamide resin is provided on the surface side of the clear layer.
According to this configuration, since the transparent top coat layer made of a material harder than the polyamide resin is provided on the surface side of the clear layer, for example, the outer surface compared to those without the top coat layer The occurrence of scratches can be suppressed.

上記課題を解決する化粧木材の製造方法は、木材の表面側に透明なクリア層が設けられた化粧木材の製造方法であって、ポリアミド樹脂を原材料とした射出成形を行うことで前記木材の表面側に前記クリア層を成形する射出成形工程を含む。   A method for manufacturing a decorative wood that solves the above problems is a method for manufacturing a decorative wood in which a transparent clear layer is provided on the surface side of the wood, and the surface of the wood is obtained by injection molding using a polyamide resin as a raw material. An injection molding step of molding the clear layer on the side.

同構成によれば、ポリアミド樹脂を原材料とした射出成形を行うことで木材の表面側にクリア層を成形する射出成形工程を含むため、例えば、クリア層がアクリル樹脂やポリカーボネート樹脂からなるものに比べて、耐熱性や耐薬品性を高くすることができる。また、スプレー等による塗装工程を複数回繰り返してクリア層を成形する場合に比べて、厚いクリア層を容易に成形することができ、厚いクリア層によって深みがあり意匠性の高い化粧木材を容易に得ることができる。   According to the same configuration, since it includes an injection molding process in which a clear layer is formed on the surface of the wood by performing injection molding using a polyamide resin as a raw material, for example, the clear layer is compared with an acrylic resin or a polycarbonate resin. Heat resistance and chemical resistance can be increased. Compared to forming a clear layer by repeating the painting process by spraying multiple times, a thick clear layer can be easily formed. Can be obtained.

本発明の化粧木材及び化粧木材の製造方法では、耐熱性や耐薬品性を高くすることができる。   In the decorative wood and the method for producing the decorative wood according to the present invention, heat resistance and chemical resistance can be increased.

一実施形態における木質化粧板の一部断面図。The partial cross section figure of the wooden decorative board in one Embodiment.

以下、木質化粧板の一実施形態を図１に従って説明する。
図１に示すように、化粧木材としての木質化粧板１は、極薄い木材である突板２の裏面側と表面側にそれぞれ複数の層を有する集成材であって、一例として例えば木目ハンドルの外表面（意匠面）を構成するものである。 Hereinafter, an embodiment of a wooden decorative board will be described with reference to FIG.
As shown in FIG. 1, a wood decorative board 1 as a decorative wood is a laminated material having a plurality of layers on the back side and the front side of a veneer 2 that is an extremely thin wood. It constitutes the surface (design surface).

突板２の裏面側であって下方側（図１中、下方側）には、接着補強層３が設けられている。接着補強層３は、突板２の割れを防ぎつつ上方の層（突板２）と後述する下方の層との剥がれを防ぐための層であって、本実施形態では、例えば、不織布や綿布等からなる補強部材と、水系高分子イソシアネートやホットメルトシート等の接着材とによって構成される。   An adhesion reinforcing layer 3 is provided on the back side of the protruding plate 2 and on the lower side (lower side in FIG. 1). The adhesion reinforcing layer 3 is a layer for preventing peeling of the upper layer (the protruding plate 2) and a lower layer to be described later while preventing the protruding plate 2 from cracking. In the present embodiment, for example, a nonwoven fabric or cotton cloth is used. And an adhesive such as a water-based polymer isocyanate or a hot melt sheet.

また、接着補強層３の裏面側であって下方側（図１中、下方側）には、接着層４を介して基材層５が設けられている。接着層４は、接着補強層３と基材層５との剥がれを防ぐための層であって、本実施形態では、例えば、アクリル系塗料等の接着材によって構成される。基材層５は、可撓性を有する突板２及び接着補強層３に剛性を与える層であって、本実施形態では、例えば、ポリカーボネート／ＡＢＳ樹脂やポリアミド樹脂やＡＢＳ樹脂やポリプロピレンや、それらそれぞれにガラスを含ませたもの等の基部材によって構成される。尚、この基材層５の裏面は、例えば、木目ハンドルのベース部材等に対して固定されることになる。   In addition, a base material layer 5 is provided on the back side of the adhesive reinforcing layer 3 and on the lower side (lower side in FIG. 1) via the adhesive layer 4. The adhesive layer 4 is a layer for preventing the adhesion reinforcing layer 3 and the base material layer 5 from being peeled off. In the present embodiment, the adhesive layer 4 is made of an adhesive such as an acrylic paint. The base material layer 5 is a layer that gives rigidity to the flexible projecting plate 2 and the adhesion reinforcing layer 3, and in this embodiment, for example, polycarbonate / ABS resin, polyamide resin, ABS resin, polypropylene, and each of them. It is comprised by base members, such as what included glass. The back surface of the base material layer 5 is fixed to, for example, a base member of a wood grain handle.

突板２の表面側であって上方側（図１中、上方側）には、着色層６が設けられている。着色層６は、木目（年輪等）の外観を残しつつ色の濃さ等を変更する層であって、本実施形態では、例えば、アクリルウレタン系塗料等に着色材を配合した塗料によって構成される。   A colored layer 6 is provided on the upper surface side (the upper side in FIG. 1) of the protruding plate 2. The colored layer 6 is a layer that changes the color density and the like while leaving the appearance of wood grain (annular rings, etc.). In this embodiment, the colored layer 6 is composed of, for example, a paint in which a coloring material is blended with an acrylic urethane paint or the like. The

また、突板２の表面側であって詳しくは着色層６の表面側（図１中、上方側）には、接着層７を介して透明なクリア層８が設けられている。接着層７は、着色層６が設けられた突板２とクリア層８との剥がれを防ぐための層であって、本実施形態では、例えば、アクリルウレタン系塗料やホットメルトシート等の接着材によって構成される。そして、クリア層８は、着色層６が設けられた突板２を透明に覆うことで突板２（着色層６）を保護したり外観に光沢や深みを与えて美観（意匠性）を向上させるための層であって、熱可塑性のポリアミド樹脂によって構成される。   Further, a transparent clear layer 8 is provided on the surface side of the protruding plate 2, specifically, on the surface side of the colored layer 6 (upper side in FIG. 1) via an adhesive layer 7. The adhesive layer 7 is a layer for preventing peeling between the protruding plate 2 provided with the colored layer 6 and the clear layer 8. In this embodiment, the adhesive layer 7 is made of, for example, an adhesive such as an acrylic urethane paint or a hot melt sheet. Composed. And the clear layer 8 protects the protrusion board 2 (coloring layer 6) by transparently covering the protrusion board 2 provided with the colored layer 6, and gives gloss and depth to the appearance to improve the appearance (designability). And is composed of a thermoplastic polyamide resin.

また、クリア層８の表面側であって上方側（図１中、上方側）には、透明なトップコート層９が設けられている。トップコート層９は、外表面の傷の発生を抑えるための層であって、クリア層８を構成するポリアミド樹脂よりも硬質な材料であり、本実施形態ではアクリル系塗料等のトップコート材によって構成される。なお、図１では、上記した各層を視覚的に分かり易くすべく模式的に図示しており、各層の具体的な厚さの比率を限定するものではない。   A transparent topcoat layer 9 is provided on the surface side of the clear layer 8 and on the upper side (the upper side in FIG. 1). The top coat layer 9 is a layer for suppressing the occurrence of scratches on the outer surface, and is a material harder than the polyamide resin constituting the clear layer 8, and in this embodiment, the top coat layer 9 is made of a top coat material such as an acrylic paint. Composed. In addition, in FIG. 1, each of the above-described layers is schematically illustrated so as to be visually easy to understand, and a specific thickness ratio of each layer is not limited.

次に、上記のように構成された木質化粧板１の製造方法について説明する。
まず、用意した前記突板２の裏面側に前記接着補強層３を接着して中間部材を製造する中間部材製造工程と、射出成形を行うことで前記基材層５を成形する基材射出成形工程とをそれぞれ（別工程で）行う。 Next, the manufacturing method of the wooden decorative board 1 comprised as mentioned above is demonstrated.
First, an intermediate member manufacturing process for manufacturing the intermediate member by bonding the adhesion reinforcing layer 3 to the rear surface side of the prepared protruding plate 2, and a base material injection molding process for forming the base material layer 5 by performing injection molding (Each in a separate process).

次に、前記中間部材の裏面側の接着補強層３と前記基材層５とを接着材（接着層４）によって接着して木質板を製造する接着工程を行う。
また、前記接着工程の前、又は前記接着工程の後に、前記突板２の表面側に塗料を塗布して着色層６を設ける。 Next, an adhesion step is performed in which the adhesion reinforcing layer 3 on the back side of the intermediate member and the base material layer 5 are adhered to each other with an adhesive (adhesive layer 4) to produce a wood board.
Also, before or after the bonding step, or after the bonding step, a colored layer 6 is provided by applying a paint to the surface side of the protruding plate 2.

その後、前記木質板の表面側、詳しくは着色層６の表面側に接着材（接着層７）を塗布し、その状態で、金型内に配置して、ポリアミド樹脂を原材料とした射出成形を行うことで突板２（着色層６）の表面側に接着層７を介して前記クリア層８を成形する射出成形工程を行う。   Thereafter, an adhesive (adhesive layer 7) is applied to the surface side of the wooden board, specifically the surface side of the colored layer 6, and in that state, it is placed in a mold and injection molding using a polyamide resin as a raw material is performed. By performing, the injection molding process which shape | molds the said clear layer 8 through the contact bonding layer 7 on the surface side of the protrusion board 2 (colored layer 6) is performed.

そして、次に、クリア層８の表面側にトップコート材を塗布して前記トップコート層９を設けることで前記木質化粧板１を製造する。
次に、上記のように構成された木質化粧板１の作用について説明する。 Then, the wooden decorative board 1 is manufactured by applying a top coat material on the surface side of the clear layer 8 and providing the top coat layer 9.
Next, the operation of the wooden decorative board 1 configured as described above will be described.

木目ハンドルの外表面（意匠面）を構成する木質化粧板１のクリア層８は、ポリアミド樹脂からなるため、例えば、車両内が高温となった場合でも、クリア層８が劣化してしまうことが抑えられ、また薬品等によって割れや白化が発生してしまうことが抑えられる。   Since the clear layer 8 of the wooden decorative board 1 constituting the outer surface (design surface) of the wood grain handle is made of a polyamide resin, for example, even when the inside of the vehicle becomes hot, the clear layer 8 may deteriorate. In addition, cracking and whitening due to chemicals and the like can be suppressed.

また、クリア層８の表面側にポリアミド樹脂（クリア層８）よりも硬質な材料からなる透明なトップコート層９が設けられるため、例えば、運転手の爪等によって外表面が傷つくことが抑えられる。   Further, since the transparent top coat layer 9 made of a material harder than the polyamide resin (clear layer 8) is provided on the surface side of the clear layer 8, it is possible to prevent the outer surface from being damaged by, for example, the driver's nails. .

次に、上記実施形態の特徴的な効果を以下に記載する。
（１）突板２の表面側に設けられる透明なクリア層８は、ポリアミド樹脂からなるため、例えば、アクリル樹脂やポリカーボネート樹脂からなるものに比べて、耐熱性や耐薬品性を高くすることができる。 Next, the characteristic effects of the above embodiment will be described below.
(1) Since the transparent clear layer 8 provided on the surface side of the protruding plate 2 is made of polyamide resin, for example, heat resistance and chemical resistance can be increased as compared with those made of acrylic resin or polycarbonate resin. .

（２）クリア層８の表面側に、ポリアミド樹脂よりも硬質な材料からなる透明なトップコート層９が設けられるため、例えば、トップコート層９が設けられていないものに比べて、外表面の傷の発生を抑えることができる。   (2) Since the transparent topcoat layer 9 made of a material harder than the polyamide resin is provided on the surface side of the clear layer 8, for example, compared with the case where the topcoat layer 9 is not provided, The occurrence of scratches can be suppressed.

（３）製造方法は、ポリアミド樹脂を原材料とした射出成形を行うことでクリア層８を成形する射出成形工程を含むため、スプレー等による塗装工程を複数回繰り返してクリア層８を成形する場合に比べて、厚いクリア層８を容易に成形することができ、厚いクリア層８によって深みがあり意匠性の高い木質化粧板１を容易に得ることができる。   (3) Since the manufacturing method includes an injection molding process for molding the clear layer 8 by performing injection molding using a polyamide resin as a raw material, when the clear layer 8 is molded by repeating a coating process such as spraying a plurality of times. In comparison, the thick clear layer 8 can be easily formed, and the thick clear layer 8 can easily provide the wood decorative board 1 having a depth and high design.

上記実施形態は、以下のように変更してもよい。
・上記実施形態では、極薄い木材である突板２を用いた木質化粧板１に具体化したが、厚い木材（所謂、無垢材）を用いて、その表面側にポリアミド樹脂からなるクリア層を設ける等、他の化粧木材として具体化してもよい。また、勿論、突板２を用いた木質化粧板１の場合、突板２の裏面側の層はどうのように構成されていてもよく、例えば、接着補強層３と基材層５とが剥がれ難い箇所に木質化粧板１が用いられる場合等、需要がなければ、前記接着層４が設けられていない木質化粧板１としてもよい。 The above embodiment may be modified as follows.
In the above embodiment, the wood decorative board 1 using the veneer 2 that is an extremely thin wood is embodied, but a clear layer made of polyamide resin is provided on the surface side using a thick wood (so-called solid wood). Etc., and may be embodied as other decorative wood. Of course, in the case of the wooden decorative board 1 using the veneer 2, the layer on the back side of the veneer 2 may be configured in any way, for example, the adhesion reinforcing layer 3 and the base material layer 5 are hardly peeled off. If there is no demand, such as a case where the wood decorative board 1 is used in a place, the wood decorative board 1 without the adhesive layer 4 may be used.

・上記実施形態では、クリア層８の表面側に、ポリアミド樹脂よりも硬質な材料からなる透明なトップコート層９が設けられるとしたが、これに限定されず、例えば、傷が発生し難い箇所に用いられる場合等、需要がなければ、トップコート層９が設けられていない木質化粧板１（化粧板材）としてもよい。   In the above embodiment, the transparent topcoat layer 9 made of a material harder than the polyamide resin is provided on the surface side of the clear layer 8, but the present invention is not limited to this. For example, a place where scratches are difficult to occur If there is no demand, such as when used in a wood, it may be a wooden decorative board 1 (decorative board material) not provided with the top coat layer 9.

・上記実施形態では、突板２の表面側には、着色層６が設けられるとしたが、これに限定されず、着色層６が設けられていない木質化粧板１（化粧木材）としてもよい。
・上記実施形態では、突板２の表面側（詳しくは着色層６の表面側）には、接着層７を介してクリア層８が設けられるとしたが、これに限定されず、前記接着層７が設けられていない木質化粧板１としてもよい。 In the above embodiment, the colored layer 6 is provided on the surface side of the protruding plate 2, but the present invention is not limited to this, and a wooden decorative board 1 (decorated wood) without the colored layer 6 may be used.
In the above embodiment, the clear layer 8 is provided on the surface side of the protruding plate 2 (specifically, the surface side of the colored layer 6) via the adhesive layer 7. However, the present invention is not limited to this, and the adhesive layer 7 It is good also as the wooden decorative board 1 in which is not provided.

・上記実施形態では、製造方法は、ポリアミド樹脂を原材料とした射出成形を行うことでクリア層８を成形する射出成形工程を含むとしたが、これに限定されず、例えば、スプレー等による塗装工程を複数回繰り返してクリア層８を成形する等、射出成形工程を含まない製造方法としてもよい。   In the above embodiment, the manufacturing method includes an injection molding process for molding the clear layer 8 by performing injection molding using a polyamide resin as a raw material. However, the present invention is not limited to this, and for example, a coating process by spraying or the like. It is good also as a manufacturing method which does not include an injection molding process, such as shape | molding the clear layer 8 by repeating several times.

・上記実施形態では、木目ハンドルの外表面（意匠面）を構成するための木質化粧板１に具体化したが、これに限定されず、木目パネル等の他の車両内装部品や家具等の各種物品の外表面を構成するための他の木質化粧板（化粧木材）に具体化してもよい。   In the above-described embodiment, the wood decorative panel 1 for constituting the outer surface (design surface) of the wood grain handle is embodied. However, the present invention is not limited to this, and various other vehicle interior parts such as a wood grain panel and furniture. You may embody on the other wooden decorative board (decorative wood) for comprising the outer surface of articles | goods.

２…突板（木材）、８…クリア層、９…トップコート層。   2 ... Veneer (wood), 8 ... Clear layer, 9 ... Topcoat layer.

Claims (3)

木材の表面側に透明なクリア層が設けられた化粧木材であって、
前記クリア層はポリアミド樹脂からなることを特徴とする化粧木材。 A decorative wood provided with a transparent clear layer on the surface side of the wood,
The clear wood is made of polyamide resin. 前記クリア層の表面側に、ポリアミド樹脂よりも硬質な材料からなる透明なトップコート層が設けられた
請求項１に記載の化粧木材。 The decorative wood according to claim 1, wherein a transparent topcoat layer made of a material harder than the polyamide resin is provided on a surface side of the clear layer. 木材の表面側に透明なクリア層が設けられた化粧木材の製造方法であって、
ポリアミド樹脂を原材料とした射出成形を行うことで前記木材の表面側に前記クリア層を成形する射出成形工程を含むことを特徴とする化粧木材の製造方法。 A method for producing decorative wood in which a transparent clear layer is provided on the surface side of wood,
A method for producing decorative wood, comprising an injection molding step of molding the clear layer on a surface of the wood by performing injection molding using a polyamide resin as a raw material.
JP2015242393A 2015-12-11 2015-12-11 Decorative wood and manufacturing method of the same Pending JP2017105124A (en)

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