JP2005279960A - Decorative material manufacturing method - Google Patents

Decorative material manufacturing method Download PDF

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JP2005279960A
JP2005279960A JP2004093323A JP2004093323A JP2005279960A JP 2005279960 A JP2005279960 A JP 2005279960A JP 2004093323 A JP2004093323 A JP 2004093323A JP 2004093323 A JP2004093323 A JP 2004093323A JP 2005279960 A JP2005279960 A JP 2005279960A
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decorative sheet
core material
foaming agent
resin layer
adhesive
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Hiroyuki Ishikawa
博之 石川
Masahiro Nakagawa
雅博 中川
Naohiko Maeda
直彦 前田
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative material manufacturing method capable of easily peeling a decorative sheet from a core material to separate the same and capable of closely bonding the decorative sheet to the surface of the core material when the decorative sheet is laminated while bent. <P>SOLUTION: A resin layer 1 containing a foaming agent foamed by heating is formed to the surface of the core material 2 and the decorative sheet 3 is bonded to the surface of the core material 2 on the resin layer 1 by an adhesive 4. The foaming agent is expanded by heating the decorative sheet 3 to foam the resin layer 1 and the decorative sheet 3 can be peeled from the surface of the core material 2 easily. Further, as the adhesive 4 for bonding the decorative sheet 3 to the core material 2, an adhesive compounded with no foaming agent and having a high usual initial tack force is used and the decorative sheet 3 is closely bonded to the surface of the core material 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、住宅用建材、家具、扉等として用いられる化粧材の製法に関するものである。   The present invention relates to a method for producing a decorative material used as a building material for housing, furniture, a door, or the like.

化粧材は、MDF等の芯材の表面に化粧シートを接着して形成されている。そして芯材の表面への化粧シートの接着は、反応硬化型接着剤などの接着剤を用いて行なわれるのが一般的である。   The decorative material is formed by adhering a decorative sheet to the surface of a core material such as MDF. The adhesion of the decorative sheet to the surface of the core material is generally performed using an adhesive such as a reactive curable adhesive.

ところで、上記のような化粧材を廃棄する場合、芯材から化粧シートを剥がして分離することによって、リサイクルが容易になるようにすることが望まれる。しかし、このように芯材に化粧シートが接着剤で強固に接着されていると、化粧シートを芯材から剥がして分離することができず、現状では管理型廃棄物として埋め立て処分されるか、無害に燃焼できる化粧材の場合には焼却処分されている。   By the way, when discarding the cosmetic material as described above, it is desirable to make it easy to recycle by peeling off the cosmetic sheet from the core material and separating it. However, if the decorative sheet is firmly adhered to the core material with an adhesive in this way, the decorative sheet cannot be peeled off from the core material and separated, and currently disposed as landfill as managed waste, In the case of cosmetic materials that can burn harmlessly, they are incinerated.

そこで、エチレン−酢酸ビニル系共重合体エマルジョンに熱膨張性微粒子中空体などの発泡剤を配合した水性接着剤を用いて化粧シートを芯材に接着した化粧材が提案されている(特許文献1参照)。   Thus, a cosmetic material has been proposed in which a decorative sheet is bonded to a core material using an aqueous adhesive in which a foaming agent such as a thermally expandable fine particle hollow body is blended with an ethylene-vinyl acetate copolymer emulsion (Patent Document 1). reference).

このものでは、廃棄された化粧材をリサイクルする際に、加熱して接着剤中の熱膨張性微粒子中空体などの発泡剤を発泡させて膨張させることによって、芯材の表面から化粧シートを剥離させることができ、化粧シートを芯材から容易に剥がして分離することができるものである。
特許第3413400号公報
In this case, when recycling the discarded cosmetic material, the decorative sheet is peeled off from the surface of the core material by heating and foaming and expanding a foaming agent such as a thermally expandable fine particle hollow body in the adhesive. The decorative sheet can be easily peeled off and separated from the core material.
Japanese Patent No. 3413400

しかし、特許文献1のような、発泡剤を配合した接着剤は接着強度、特に初期タック力が弱く、芯材の表面に凹凸がある場合にその凹凸に沿って化粧シートを接着する場合や、芯材が多面体からなる立体形状を有していて複数の面に跨って化粧シートを接着する場合のように、化粧シートを屈曲させながら接着する際には、化粧シートが芯材の表面から浮き上がり、芯材の表面に密着させて化粧シートを貼り付けることが難しいという問題があった。   However, as in Patent Document 1, an adhesive containing a foaming agent has low adhesive strength, particularly initial tack force, and when the surface of the core material has irregularities, the decorative sheet is adhered along the irregularities, When bonding the decorative sheet while bending the decorative sheet, such as when the core material has a three-dimensional shape consisting of polyhedrons and the decorative sheet is bonded across multiple surfaces, the decorative sheet floats from the surface of the core material. There is a problem that it is difficult to attach the decorative sheet in close contact with the surface of the core material.

本発明は上記の点に鑑みてなされたものであり、芯材から化粧シートを容易に剥がして分離することができ、しかも化粧シートを屈曲等させながら貼り付けるにあたっても芯材の表面に化粧シートを密着させて接着することができる化粧材の製法を提供することを目的とするものである。   The present invention has been made in view of the above points. The decorative sheet can be easily peeled off and separated from the core material, and the decorative sheet can be applied to the surface of the core material even when the decorative sheet is bent or the like. It aims at providing the manufacturing method of the cosmetics which can adhere | attach and adhere | attach.

本発明の請求項1に係る化粧材の製法は、加熱することによって発泡する発泡剤を含有する樹脂層1を芯材2の表面に形成し、この樹脂層1の上から芯材2の表面に化粧シート3を接着剤4で接着することを特徴とするものである。   In the method for producing a decorative material according to claim 1 of the present invention, a resin layer 1 containing a foaming agent that foams when heated is formed on the surface of the core material 2, and the surface of the core material 2 is formed from above the resin layer 1. Further, the decorative sheet 3 is bonded with an adhesive 4.

本発明の請求項2に係る化粧材の製法は、加熱することによって発泡する発泡剤を含有する樹脂層1を化粧シート3の一方の面に形成し、この樹脂層1の側の面で化粧シート3を芯材2の表面に接着剤4で接着することを特徴とするものである。   In the method for producing a decorative material according to claim 2 of the present invention, a resin layer 1 containing a foaming agent that foams when heated is formed on one surface of the decorative sheet 3, and makeup is applied on the surface on the resin layer 1 side. The sheet 3 is bonded to the surface of the core material 2 with an adhesive 4.

また請求項3の発明は、請求項1又は2において、芯材2は凹凸表面と、立体形状の少なくとも一方を有し、化粧シート3を芯材2の表面に沿って接着することを特徴とするものである。   The invention of claim 3 is characterized in that in claim 1 or 2, the core material 2 has at least one of an uneven surface and a three-dimensional shape, and the decorative sheet 3 is bonded along the surface of the core material 2. To do.

また請求項4の発明は、請求項1乃至3のいずれかにおいて、樹脂層1には発泡剤が5〜50質量%含有されていることを特徴とするものである。   The invention of claim 4 is characterized in that in any one of claims 1 to 3, the resin layer 1 contains 5 to 50% by mass of a foaming agent.

また請求項5の発明は、請求項1乃至4のいずれかにおいて、樹脂層1の樹脂はビニル系樹脂、アクリル系樹脂、ウレタン系樹脂から選ばれるものであることを特徴とするものである。   The invention of claim 5 is characterized in that in any one of claims 1 to 4, the resin of the resin layer 1 is selected from vinyl resins, acrylic resins, and urethane resins.

加熱することによって発泡する発泡剤を含有する樹脂層1が芯材2と化粧シート3の間に介在するものであり、廃棄された化粧材をリサイクルする際に、加熱することによって発泡剤を膨張させて樹脂層1を発泡させることによって、芯材2の表面から化粧シート3を剥離させることができ、化粧シート3を芯材2から容易に剥がして分離することができる。また化粧シート3を芯材1に接着する接着剤4としては発泡剤が配合されていない通常の初期タック力が強いものを用いることができるものであり、化粧シート3を屈曲等させながら貼り付けるにあたって、芯材2の表面に化粧シート3を密着させて接着することができる。   The resin layer 1 containing a foaming agent that foams when heated is interposed between the core material 2 and the decorative sheet 3, and when the discarded cosmetic material is recycled, the foaming agent is expanded by heating. By making the resin layer 1 foam, the decorative sheet 3 can be peeled off from the surface of the core material 2, and the decorative sheet 3 can be easily peeled off and separated from the core material 2. Further, as the adhesive 4 for adhering the decorative sheet 3 to the core material 1, a normal one having a strong initial tack force not containing a foaming agent can be used, and the decorative sheet 3 is applied while being bent. In this case, the decorative sheet 3 can be adhered to the surface of the core material 2 and adhered.

以下、本発明を実施するための最良の形態を説明する。   Hereinafter, the best mode for carrying out the present invention will be described.

図1は本発明の実施の形態の一例を示すものであり、合板、集成材、MDF(中密度繊維板)など木質の芯材2の表面に図1(a)のように、加熱することによって発泡する発泡剤を含有する樹脂層1が予め形成してある。この芯材2としては、例えば図1のように、表面に凹部10を設けて凹凸面が形成されたものや、立体形状に形成して複数の面からなるものを使用することができるものであり、樹脂層1は凹凸面に沿って形成してあると共に、複数の面に跨って形成してある。   FIG. 1 shows an example of an embodiment of the present invention, in which the surface of a wood core 2 such as plywood, laminated wood, MDF (medium density fiberboard) is heated as shown in FIG. The resin layer 1 containing the foaming agent which foams by is formed beforehand. As the core material 2, for example, as shown in FIG. 1, a surface in which a concave portion 10 is provided on the surface and an uneven surface is formed, or a material having a three-dimensional shape and having a plurality of surfaces can be used. In addition, the resin layer 1 is formed along an uneven surface and is formed across a plurality of surfaces.

この発泡剤としては、特に限定されるものではないが、特許第3413400号公報(特許文献1)に記載されている熱膨張性微粒中空体を用いることができる。この発泡剤は、液化炭化水素をアクリル樹脂などの熱可塑性樹脂の表層で包皮したものであり、発泡開始温度が90〜180℃程度、発泡倍率が20〜100倍程度、粒径が3〜30μm程度のものが好ましい。このような発泡剤としては、エクスパンセル社製「053DU」、エクスパンセル社製「092DU」、マツモトマイクロスフェアー社製「F20D」、マツモトマイクロスフェアー社製「F30D」などの市販品を用いることができる。   The foaming agent is not particularly limited, and a thermally expandable fine particle hollow body described in Japanese Patent No. 3413400 (Patent Document 1) can be used. This foaming agent is obtained by enveloping a liquefied hydrocarbon with a surface layer of a thermoplastic resin such as an acrylic resin. The foaming start temperature is about 90 to 180 ° C., the foaming ratio is about 20 to 100 times, and the particle size is 3 to 30 μm. A degree is preferred. As such a foaming agent, commercially available products such as “053DU” manufactured by EXPANSEL, “092DU” manufactured by EXPANSEL, “F20D” manufactured by Matsumoto Microsphere, and “F30D” manufactured by Matsumoto Microsphere. Can be used.

また樹脂層1を構成する樹脂としては、エチレン酢酸ビニル共重合体やエチレン酢酸ビニルアクリル酸エステル共重合体などのビニル系樹脂、アクリル酸エステル共重合体やアクリル酸エステル−エチレン共重合体などのアクリル系樹脂、スルホン酸変性ポリウレタンなどのウレタン系樹脂を挙げることができるものであり、これらから選ばれる樹脂を一種単独で用いる他、複数種を併用することもできる。これらの樹脂は、木工加工の分野で、エマルジョン系や弾性系接着剤の成分として一般に使用されているものであり、入手の容易さやコストの面などで好ましい。   Examples of the resin constituting the resin layer 1 include vinyl resins such as ethylene vinyl acetate copolymer and ethylene vinyl acetate acrylate copolymer, acrylic ester copolymers, and acrylate-ethylene copolymers. Examples thereof include urethane resins such as acrylic resins and sulfonic acid-modified polyurethanes, and a resin selected from these resins may be used alone or in combination of two or more. These resins are generally used as components of emulsion and elastic adhesives in the field of woodworking, and are preferable in terms of availability and cost.

そしてこれらの樹脂に上記の発泡剤を配合し、この発泡剤含有樹脂を芯材2の表面に塗布して乾燥することによって、樹脂層1を形成することができる。発泡剤は樹脂層1中に5〜50質量%の割合で含有されているのが好ましい。発泡剤の含有量が5質量%未満であると、後述のように芯材2に化粧シート3を貼った化粧材Aを加熱することによって、発泡剤を膨張させて樹脂層1を発泡させるにあたって、発泡が不十分になり、芯材2の表面から化粧シート3を剥離することが困難になるおそれがある。逆に発泡剤の含有量が50質量%を超えると、樹脂層1中の樹脂成分の割合が低くなるので、樹脂層1の接着力が低下し、後述のように芯材2に樹脂層1を介して接着した化粧シート3の密着強度が低くなり、化粧材Aの日常使用時に化粧シート3が剥がれたり浮いたりするおそれがある。また樹脂層1の厚みは特に制限されるものではないが、30〜100μm程度が好ましい。   The resin layer 1 can be formed by blending the above foaming agent with these resins, applying the foaming agent-containing resin to the surface of the core material 2 and drying it. The foaming agent is preferably contained in the resin layer 1 in a proportion of 5 to 50% by mass. When the content of the foaming agent is less than 5% by mass, the foaming agent is expanded to foam the resin layer 1 by heating the decorative material A in which the decorative sheet 3 is pasted on the core material 2 as described later. The foaming becomes insufficient, and it may be difficult to peel the decorative sheet 3 from the surface of the core material 2. On the contrary, when the content of the foaming agent exceeds 50% by mass, the ratio of the resin component in the resin layer 1 is reduced, so that the adhesive strength of the resin layer 1 is reduced, and the resin layer 1 is bonded to the core material 2 as described later. Adhesive strength of the decorative sheet 3 bonded via the sheet becomes low, and the decorative sheet 3 may peel off or float during daily use of the decorative material A. The thickness of the resin layer 1 is not particularly limited, but is preferably about 30 to 100 μm.

化粧シート3としては、木質単板や樹脂シートなど任意のものを用いることができるものであり、化粧シート3の接着面に接着剤4を図1(a)のように塗布した後、化粧シート3を芯材2の表面に重ねて押さえ付けることによって、図1(b)に示すように、樹脂層1を介して芯材2の表面に接着剤4で接着することができるものである。   As the decorative sheet 3, an arbitrary material such as a wood veneer or a resin sheet can be used. After the adhesive 4 is applied to the adhesive surface of the decorative sheet 3 as shown in FIG. By overlapping and pressing 3 on the surface of the core material 2, it can be adhered to the surface of the core material 2 with the adhesive 4 via the resin layer 1 as shown in FIG.

この接着剤4としては、芯材2に化粧シート3を接着するために従来から使用されている一般的なものを用いることができるものであり、ウレタン系接着剤など発泡剤を含有する樹脂層1を形成する樹脂より初期タック力が高いものを使用することができる。また化粧シート3への接着剤4の塗布厚みは30〜100μm程度が好ましい。   As the adhesive 4, a general material conventionally used for adhering the decorative sheet 3 to the core material 2 can be used, and a resin layer containing a foaming agent such as a urethane-based adhesive. Those having an initial tack force higher than that of the resin forming 1 can be used. Moreover, as for the application | coating thickness of the adhesive agent 4 to the decorative sheet 3, about 30-100 micrometers is preferable.

ここで、上記のように芯材2として表面に凹部10を設けて凹凸面が形成されたものや、立体形状に形成して複数の面からなるものを使用する場合、芯材2の輪郭に沿って複数のロールを配置したプロフィールラミネーターを用いて、化粧シート3を芯材2の凹凸面に沿うように、また複数の面に亘るように屈曲させながら、芯材2の全面に化粧シート3を接着することができる。そして接着剤4としては発泡剤を含有する樹脂層1を形成する樹脂より初期タック力が高いものを使用することができるので、芯材2の表面に化粧シート3を押さえ付けることによって、化粧シート3が屈曲した状態でも高いタック力で化粧シート3を芯材2に密着させることができ、化粧シート3が芯材2の表面から浮き上がってきれいに貼り付けることができないというようなことがなくなるものである。   Here, as described above, when the core material 2 is provided with the concave portion 10 on the surface to form an uneven surface, or is formed in a three-dimensional shape and has a plurality of surfaces, the contour of the core material 2 is used. Using a profile laminator in which a plurality of rolls are arranged along the decorative sheet 3, the decorative sheet 3 is bent over the entire surface of the core material 2 while being bent along the uneven surface of the core material 2 and over a plurality of surfaces. Can be glued. And since the adhesive 4 can use the thing with initial tack power higher than resin which forms the resin layer 1 containing a foaming agent, by pressing down the decorative sheet 3 on the surface of the core material 2, a decorative sheet Even when 3 is bent, the decorative sheet 3 can be brought into close contact with the core material 2 with a high tack force, and the decorative sheet 3 can be lifted from the surface of the core material 2 and cannot be adhered neatly. is there.

図2は本発明の他の実施の形態の一例を示すものであり、化粧シート3の接着側の表面に図2(a)のように、加熱することによって発泡する発泡剤を含有する樹脂層1が予め形成してある。この接着層1は上記と同様にして形成することができる。このように化粧シート3に接着層1を形成した後、接着層1の表面に上記と同様な接着剤4を塗布し、そして上記と同様にして、図2(b)のように芯材2の表面に化粧シート3を接着することができるものである。   FIG. 2 shows an example of another embodiment of the present invention, and a resin layer containing a foaming agent that foams when heated on the surface on the bonding side of the decorative sheet 3 as shown in FIG. 2 (a). 1 is formed in advance. This adhesive layer 1 can be formed in the same manner as described above. After forming the adhesive layer 1 on the decorative sheet 3 in this way, the adhesive 4 similar to the above is applied to the surface of the adhesive layer 1, and the core material 2 as shown in FIG. The decorative sheet 3 can be adhered to the surface.

上記のように芯材2の表面に化粧シート3を接着して形成される化粧材Aにあって、廃棄された化粧材Aをリサイクルする場合には、樹脂層1に配合した発泡剤の発泡温度以上の温度で化粧材Aを加熱すると、発泡剤が膨張して樹脂層1が発泡し、芯材2の表面から化粧シート3を剥離させることができる。従って化粧シート3を芯材2から容易に剥がしてそれぞれを単一材料に分離することができ、リサイクルが容易になるものである。   In the case of the decorative material A formed by adhering the decorative sheet 3 to the surface of the core material 2 as described above, when the discarded decorative material A is recycled, the foaming agent foamed in the resin layer 1 is foamed. When the decorative material A is heated at a temperature equal to or higher than the temperature, the foaming agent expands, the resin layer 1 foams, and the decorative sheet 3 can be peeled from the surface of the core material 2. Therefore, the decorative sheet 3 can be easily peeled off from the core material 2 and separated into a single material, which facilitates recycling.

次に、本発明を実施例によって具体的に説明する。   Next, the present invention will be specifically described with reference to examples.

(実施例1)
芯材2として、厚さT=12mm、幅W=35mm、長さ2400mmのMDF材を用い、この芯材2の表面に幅M=10mm、深さD=5mmの溝状の凹部10を形成した。また化粧シート3として70μm厚のPETフィルムを用いた。
(Example 1)
An MDF material having a thickness T = 12 mm, a width W = 35 mm, and a length 2400 mm is used as the core material 2, and a groove-shaped recess 10 having a width M = 10 mm and a depth D = 5 mm is formed on the surface of the core material 2. did. A 70 μm thick PET film was used as the decorative sheet 3.

そしてまず、ポリ塩化ビニル系樹脂(住友化学工業社製「スミカフレックス400HG」)に発泡剤(エクスパンセル社製「053DU」)を10質量%配合した発泡剤含有樹脂を芯材2の外周表面全面に塗布し、室温養生24時間の条件で乾燥することによって、芯材2の表面に樹脂層1を形成した(図1(a)参照)。   First, the outer peripheral surface of the core material 2 is a foaming agent-containing resin in which 10% by mass of a foaming agent (“053DU” manufactured by Expandance Co., Ltd.) is blended with a polyvinyl chloride resin (“Sumikaflex 400HG” manufactured by Sumitomo Chemical Co., Ltd.). The resin layer 1 was formed on the surface of the core material 2 by applying to the entire surface and drying under conditions of room temperature curing for 24 hours (see FIG. 1A).

次に、化粧シート3の下面の全面にウレタン系接着剤(日本フーラ社製「HBF160」)を50μmの厚みに塗布しながら、10m/分の速度で搬送する芯材2の表面に重ね、プロフィールラミネータで芯材2の外周に化粧シート3をラッピングし、接着剤4を室温養生24時間の条件で乾燥して接着を行なうことによって、化粧材を得た(図1(b)参照)。   Next, a urethane adhesive (“HBF160” manufactured by Nippon Houra Co., Ltd.) is applied to the entire lower surface of the decorative sheet 3 to a thickness of 50 μm, and is superimposed on the surface of the core material 2 conveyed at a speed of 10 m / min. The decorative sheet 3 was wrapped around the outer periphery of the core material 2 with a laminator, and the adhesive 4 was dried and bonded under conditions of room temperature curing for 24 hours to obtain a decorative material (see FIG. 1B).

(実施例2)
実施例1と同様な化粧シート3の下面の全面に、実施例1と同様な発泡剤含有樹脂を塗布し、室温養生24時間の条件で乾燥することによって、化粧シート3の下面に樹脂層1を形成した(図2(a)参照)。
(Example 2)
The same foaming agent-containing resin as in Example 1 is applied to the entire lower surface of the decorative sheet 3 similar to that in Example 1, and dried under conditions of room temperature curing for 24 hours, whereby the resin layer 1 is formed on the lower surface of the decorative sheet 3. (See FIG. 2A).

そして実施例1と同様な芯材1を用い、樹脂層1を形成した化粧シート3の下面の全面に実施例1と同様なウレタン系接着剤(日本フーラ社製「HBF160」)を50μmの厚みに塗布しながら、10m/分の速度で搬送する芯材2の表面に重ね、プロフィールラミネータで芯材2の外周に化粧シート3をラッピングし、接着剤4を室温養生24時間の条件で乾燥して接着を行なうことによって、化粧材を得た(図2(b)参照)。   Then, the same core material 1 as in Example 1 was used, and a urethane adhesive similar to that in Example 1 (“HBF160” manufactured by Nippon Fura Co., Ltd.) as in Example 1 was applied to the entire lower surface of the decorative sheet 3 on which the resin layer 1 was formed to a thickness of 50 μm. It is applied to the surface of the core material 2 that is conveyed at a speed of 10 m / min, the decorative sheet 3 is wrapped around the outer periphery of the core material 2 with a profile laminator, and the adhesive 4 is dried under conditions of room temperature curing for 24 hours. Then, a decorative material was obtained by bonding (see FIG. 2B).

(実施例3)
エチレン−酢酸ビニル系共重合体エマルジョン(住友化学工業社製「スミカフレックス400HQ」)に発泡剤(エクスパンセル社製「053DU」)を30質量%配合した発泡剤含有樹脂を用いるようにした他は、実施例1と同様にして化粧材を得た(図1(b)参照)。
(Example 3)
Other than the use of a foaming agent-containing resin in which 30% by mass of a foaming agent (“053DU” manufactured by Expandance Co., Ltd.) is blended in an ethylene-vinyl acetate copolymer emulsion (“SUMICA FLEX 400HQ” manufactured by Sumitomo Chemical Co., Ltd.) Obtained a cosmetic material in the same manner as in Example 1 (see FIG. 1B).

(実施例4)
エチレン−酢酸ビニル系共重合体エマルジョン(住友化学工業社製「スミカフレックス400HQ」)に発泡剤(エクスパンセル社製「053DU」)を5質量%配合した発泡剤含有樹脂を用いるようにした他は、実施例1と同様にして化粧材を得た(図1(b)参照)。
Example 4
In addition to using a foaming agent-containing resin in which 5% by mass of a foaming agent (“053DU” manufactured by Expancel Co., Ltd.) is blended in an ethylene-vinyl acetate copolymer emulsion (“Sumikaflex 400HQ” manufactured by Sumitomo Chemical Co., Ltd.) Obtained a cosmetic material in the same manner as in Example 1 (see FIG. 1B).

(実施例5)
アクリル系樹脂(コニシ社製「CZ100」)に発泡剤(エクスパンセル社製「053DU」)を10質量%配合した発泡剤含有樹脂を用いるようにした他は、実施例1と同様にして化粧材を得た(図1(b)参照)。
(Example 5)
A makeup is made in the same manner as in Example 1 except that a foaming agent-containing resin in which 10% by mass of a foaming agent (“053DU” manufactured by EXPANSEL) is blended with an acrylic resin (“CZ100” manufactured by Konishi Co., Ltd.) is used. A material was obtained (see FIG. 1 (b)).

(実施例6)
ウレタン系樹脂(コニシ社製「CU3」)に発泡剤(エクスパンセル社製「053DU」)を10質量%配合した発泡剤含有樹脂を用いるようにした他は、実施例1と同様にして化粧材を得た(図1(b)参照)。
(Example 6)
A makeup is made in the same manner as in Example 1 except that a foaming agent-containing resin in which 10% by mass of a foaming agent (“053DU” manufactured by Expancel) is blended with a urethane resin (“CU3” manufactured by Konishi Co., Ltd.) is used. A material was obtained (see FIG. 1 (b)).

(実施例7)
エチレン−酢酸ビニル系共重合体エマルジョン(住友化学工業社製「スミカフレックス400HQ」)に発泡剤(エクスパンセル社製「053DU」)を3質量%配合した発泡剤含有樹脂を用いるようにした他は、実施例1と同様にして化粧材を得た(図1(b)参照)。
(Example 7)
In addition to the use of a foaming agent-containing resin in which 3% by mass of a foaming agent (“053DU” manufactured by Expandance Co., Ltd.) is blended with an ethylene-vinyl acetate copolymer emulsion (“Sumikaflex 400HQ” manufactured by Sumitomo Chemical Co., Ltd.) Obtained a cosmetic material in the same manner as in Example 1 (see FIG. 1B).

(実施例8)
エチレン−酢酸ビニル系共重合体エマルジョン(住友化学工業社製「スミカフレックス400HQ」)に発泡剤(エクスパンセル社製「053DU」)を3質量%配合した発泡剤含有樹脂を用いるようにした他は、実施例2と同様にして化粧材を得た(図2(b)参照)。
(Example 8)
In addition to the use of a foaming agent-containing resin in which 3% by mass of a foaming agent (“053DU” manufactured by Expandance Co., Ltd.) is blended with an ethylene-vinyl acetate copolymer emulsion (“Sumikaflex 400HQ” manufactured by Sumitomo Chemical Co., Ltd.) Obtained a cosmetic material in the same manner as in Example 2 (see FIG. 2B).

(比較例1)
芯材2と化粧シート3のいずれにも樹脂層1を形成しないようにし、その他は実施例1と同様にして、芯材2に化粧シート3を接着剤4で直接貼り付けた化粧材を得た。
(Comparative Example 1)
The resin layer 1 is not formed on any of the core material 2 and the decorative sheet 3, and the rest is the same as in Example 1 except that the decorative material is obtained by directly attaching the decorative sheet 3 to the core material 2 with the adhesive 4. It was.

(比較例2)
芯材2の外周表面の全面に実施例1と同様な発泡剤含有樹脂を塗布し、その直後に、接着剤を塗布しない化粧シート3を実施例1と同様にして、プロフィールラミネーターで芯材2にラミネートし、樹脂層1を室温養生24時間の条件で乾燥して接着を行なうことによって、化粧材を得た。
(Comparative Example 2)
The same foaming agent-containing resin as in Example 1 is applied to the entire outer peripheral surface of the core material 2, and immediately thereafter, the decorative sheet 3 to which no adhesive is applied is applied in the same manner as in Example 1 using the profile laminator to form the core material 2 Then, the resin layer 1 was dried and bonded under conditions of room temperature curing for 24 hours to obtain a decorative material.

上記の各化粧材について、芯材2と化粧シート3の分離性評価の試験を行なった。試験は、遠赤外線加熱炉を用いて、化粧材の表面温度が150〜180℃になるように2分間加熱した後、炉外に出して室温まで冷却し、この後に芯材2から化粧シート3を引き剥がすことによって行なった。そして、芯材2と化粧シート3が容易に引き剥がして分離できるものを「○」、芯材2と化粧シート3を分離できるが、部分的に剥がれずに残るものを「△」、芯材2と化粧シート3を分離できないものを「×」と評価した。   About each said cosmetics, the test of the separability evaluation of the core material 2 and the decorative sheet 3 was done. In the test, a far-infrared heating furnace was used to heat the decorative material to a surface temperature of 150 to 180 ° C. for 2 minutes, and then it was taken out of the furnace and cooled to room temperature. It was done by peeling off. The core material 2 and the decorative sheet 3 can be easily peeled off and separated from each other as “◯”, and the core material 2 and the decorative sheet 3 can be separated from each other, but the one that remains without being partially separated is “Δ”. Those incapable of separating 2 and the decorative sheet 3 were evaluated as “x”.

また、上記の各化粧材について、形状追随性評価の試験を行なった。試験は、化粧材の外観を観察して、化粧シート3が芯材2の外周表面に沿ってラッピングできているかどうかを判断することによって行ない、化粧シート3が芯材2の外周表面に沿ってラッピングできているものを「○」、化粧シート3が芯材2の外周表面に沿ってラッピングできていないものを「×」と評価した。   Moreover, about each said cosmetics, the test of shape followability evaluation was done. The test is performed by observing the appearance of the decorative material to determine whether the decorative sheet 3 is wrapped along the outer peripheral surface of the core material 2, and the decorative sheet 3 is aligned along the outer peripheral surface of the core material 2. The wrapping was evaluated as “◯”, and the decorative sheet 3 was evaluated as “x” when the decorative sheet 3 was not wrapped along the outer peripheral surface of the core material 2.

Figure 2005279960
Figure 2005279960

表1にみられるように、芯材2と化粧シート3の間に発泡剤を含有する樹脂層1を設けなかった比較例1のものでは、芯材2と化粧シート3の分離性が悪く、接着剤4を用いずに樹脂層1の接着力で芯材2に化粧シート3を接着するようにした比較例2のものでは、芯材2の形状に対する化粧シート3の形状追随性が悪いのに対し、各実施例のものは分離性、形状追随性のいずれも良好なものであった。また実施例7及び8のように樹脂層1中の発泡剤の量が少ないと分離性が十分に高く得ることができないので、実施例1〜6のように発泡剤の含有量は5質量%以上が望ましいことが確認される。   As seen in Table 1, in the comparative example 1 in which the resin layer 1 containing a foaming agent was not provided between the core material 2 and the decorative sheet 3, the separability between the core material 2 and the decorative sheet 3 was poor, In the comparative example 2 in which the decorative sheet 3 is bonded to the core material 2 with the adhesive force of the resin layer 1 without using the adhesive 4, the shape following property of the decorative sheet 3 with respect to the shape of the core material 2 is poor. On the other hand, in each example, both the separability and the shape followability were good. Moreover, since the separability cannot be sufficiently high if the amount of the foaming agent in the resin layer 1 is small as in Examples 7 and 8, the content of the foaming agent is 5% by mass as in Examples 1-6. It is confirmed that the above is desirable.

本発明の実施の形態の一例を示すものであり、(a),(b)はそれぞれ概略断面図である。An example of embodiment of this invention is shown, (a), (b) is a schematic sectional drawing, respectively. 本発明の他の実施の形態の一例を示すものであり、(a),(b)はそれぞれ概略断面図である。An example of other embodiment of this invention is shown, (a), (b) is a schematic sectional drawing, respectively.

符号の説明Explanation of symbols

1 樹脂層
2 芯材
3 化粧シート
4 接着剤
1 resin layer 2 core material 3 decorative sheet 4 adhesive

Claims (5)

加熱することによって発泡する発泡剤を含有する樹脂層を芯材の表面に形成し、この樹脂層の上から芯材の表面に化粧シートを接着剤で接着することを特徴とする化粧材の製法。   A method for producing a cosmetic material, characterized in that a resin layer containing a foaming agent that foams when heated is formed on the surface of the core material, and a decorative sheet is adhered to the surface of the core material from above the resin layer with an adhesive. . 加熱することによって発泡する発泡剤を含有する樹脂層を化粧シートの一方の面に形成し、この樹脂層の側の面で化粧シートを芯材の表面に接着剤で接着することを特徴とする化粧材の製法。   A resin layer containing a foaming agent that is foamed by heating is formed on one side of the decorative sheet, and the decorative sheet is bonded to the surface of the core material with an adhesive on the side of the resin layer. How to make cosmetics. 芯材は凹凸表面と、立体形状の少なくとも一方を有し、化粧シートを芯材の表面に沿って接着することを特徴とする請求項1又は2に記載の化粧材の製法。   The method for producing a cosmetic material according to claim 1 or 2, wherein the core material has at least one of an uneven surface and a three-dimensional shape, and the decorative sheet is bonded along the surface of the core material. 樹脂層には発泡剤が5〜50質量%含有されていることを特徴とする請求項1乃至3のいずれかに記載の化粧材の製法。   The method for producing a cosmetic material according to any one of claims 1 to 3, wherein the resin layer contains 5 to 50 mass% of a foaming agent. 樹脂層の樹脂はビニル系樹脂、アクリル系樹脂、ウレタン系樹脂から選ばれるものであることを特徴とする請求項1乃至4のいずれかに記載の化粧材の製法。   The method for producing a cosmetic material according to any one of claims 1 to 4, wherein the resin of the resin layer is selected from vinyl resins, acrylic resins, and urethane resins.
JP2004093323A 2004-03-26 2004-03-26 Decorative material manufacturing method Pending JP2005279960A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3434467A1 (en) * 2017-07-27 2019-01-30 Casio Computer Co., Ltd. Three-dimensionally shaped object forming sheet, three-dimensionally shaped object and production method for same, and production method for decorated three-dimensional object

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3434467A1 (en) * 2017-07-27 2019-01-30 Casio Computer Co., Ltd. Three-dimensionally shaped object forming sheet, three-dimensionally shaped object and production method for same, and production method for decorated three-dimensional object
US10926578B2 (en) 2017-07-27 2021-02-23 Casio Computer Co., Ltd. Three-dimensionally shaped object forming sheet, three-dimensionally shaped object and production method for same, and production method for decorated three-dimensional object
US11685185B2 (en) 2017-07-27 2023-06-27 Casio Computer Co., Ltd. Three-dimensionally shaped object forming sheet, three-dimensionally shaped object and production method for same, and production method for decorated three-dimensional object

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