JPH0886157A - Core material panel of door - Google Patents

Abstract

PURPOSE: To prevent warping and strain by forming polyethylene layers on both surfaces of a synthetic resin foaming body on both surfaces of which aluminum foils have been bonded, and also by sticking aluminum foils on both the surfaces of the respective polyethylene layers, and then by arranging decorative materials on both the surfaces respectively. CONSTITUTION: A core material panel of a door is formed by making a center of a synthetic resin foaming body 1 and by laminating thereon from both sides aluminum foils 2, polyethylene layers 3, aluminum foils 2, and decorative materials 4 respectively. By the front and rear symmetrical layer construction of different materials like this, strong strength and shape maintenance can be produced, and a core material panel free from warping and strain can be obtained. Further, the waterproofing effect of the polyethylene layers 3 is effectively produced by the joint use of aluminum foils, and even in a region where the temperature difference is large, the core material can prevent warping, dewing, or the like.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、家具、厨房、建具等に
好適に使用することができるドアの芯材に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door core material suitable for use in furniture, kitchens, fittings and the like.

【０００２】[0002]

【従来の技術】従来、家具、厨房、建具等の住宅用のド
アは、木質集成材、ハニカムコア等のパネルを芯材と
し、この芯材の面上に壁紙、クロス、板紙等の表面化粧
材を貼り合わせた後に、側縁に枠材を取付けた構造が広
く使用されている。近年では、軽量化の要求が強く、重
量的優位にある発泡材を芯材にしてその両面に紙あるい
は金属板等の剛性材と表面化粧材を貼り合わせた軽量ド
アが開発され実施されるに至っている。2. Description of the Related Art Conventionally, doors for homes such as furniture, kitchens and fittings have a panel made of wood laminated wood, honeycomb core, etc. as a core material, and the surface of this core material has a surface makeup such as wallpaper, cloth and paperboard. A structure in which a frame material is attached to a side edge after the materials are bonded together is widely used. In recent years, there has been a strong demand for weight reduction, and a lightweight door has been developed in which a foam material, which has a weight advantage, is used as a core material and a rigid material such as paper or a metal plate and a surface decorative material are attached to both sides of the core material. Has arrived.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、前記し
た剛性パネルを芯材とする従来のドアあるいは発泡材を
芯材とする軽量ドアはいずれも湿気の透過によって反り
やねじれを引き起こす恐れがあり、また、前記湿気とか
反りやねじれあるいは材質の特性から層間剥離が起き面
材のはがれが生じ易いなどの大きな欠点がある。本発明
はこのような湿気の透過によって反りやねじれを生じる
ことがなく、かつ強固に接着して層間剥離の恐れを除去
した軽量なドアの芯材を提供することを目的としてい
る。以下、図面を参照しつつ詳述する。However, both the conventional door having the rigid panel as the core material and the lightweight door having the foam material as the core material may cause warping or twisting due to the permeation of moisture. However, there are major drawbacks such as delamination of the face material due to delamination due to moisture, warpage, twisting, or characteristics of the material. It is an object of the present invention to provide a lightweight door core material that does not warp or twist due to the permeation of moisture and is firmly bonded to eliminate the risk of delamination. Hereinafter, a detailed description will be given with reference to the drawings.

【０００４】[0004]

【課題を解決するための手段】本発明は、図１に示すよ
うに住宅用の軽量ドアに用いる芯材パネルであって、両
面にアルミニウム箔（２）を接着した合成樹脂製発泡体
（１）の両面にポリエチレン層（３）を形成すると共
に、前記ポリエチレン層（３）の両表面へさらにアルミ
ニウム箔（２）を貼り合わせて、この両表面に化粧材
（４）を配設した積層構造を特徴としている。As shown in FIG. 1, the present invention provides a core material panel used in a lightweight door for a house, which is made of synthetic resin foam (1) having aluminum foils (2) adhered to both sides. ), A polyethylene layer (3) is formed on both surfaces, and aluminum foil (2) is further attached to both surfaces of the polyethylene layer (3), and a decorative material (4) is disposed on both surfaces. Is characterized by.

【０００５】[0005]

【作用】本発明は、上記したように、表面側から、化粧
材（４）、アルミニウム箔（２）、ポリエチレン層
（３）、アルミニウム箔（２）、合成樹脂製発泡体
（１）、アルミニウム箔（２）、ポリエチレン層
（３）、アルミニウム箔（２）、化粧材（４）と、剛性
樹脂製発泡体（１）を中心に層状に積層形成したドアの
芯材パネルであり、このような異材質の表裏対象多層構
造によって強い強度と形状維持力が生まれ、反り・歪の
ない芯材パネルが得られる。特に本発明では、従来多く
用いられたチップボール紙に代えてポリエチレン層
（３）を形成しており、このチップボール紙の吸湿によ
って引き起こされていた層剥離あるいは反りの恐れを完
全に取り除くことができたものである。このポリエチレ
ン層（３）の防水効果はアルミニウム箔（２）の併用に
よってさらに有効に働き、湿度差の大きい地域あるいは
寒冷地において反り、結露等を防止しえるドア芯材とな
ったものである。The present invention, as described above, includes the decorative material (4), the aluminum foil (2), the polyethylene layer (3), the aluminum foil (2), the synthetic resin foam (1) and the aluminum from the surface side. A door core panel, which is formed by layering a foil (2), a polyethylene layer (3), an aluminum foil (2), a decorative material (4), and a rigid resin foam (1) in a layered manner. A strong and shape-maintaining force is created by the front and back symmetrical multi-layer structure made of different materials, resulting in a core panel that does not warp or distort. In particular, in the present invention, the polyethylene layer (3) is formed in place of the chip cardboard that has been widely used in the past, and it is possible to completely eliminate the risk of delamination or warpage caused by moisture absorption of the chip cardboard. It was made. The waterproof effect of the polyethylene layer (3) is more effective when used in combination with the aluminum foil (2), and the polyethylene core (3) becomes a door core material capable of preventing warpage, dew condensation, etc. in an area with a large humidity difference or in a cold area.

【０００６】[0006]

【実施例】以下、本発明の実施例を示す。図１で示す本
発明での化粧材（４）としては、プリント紙を用いるも
のとしたが、他に塩化ビニールシート、ビニールクロス
なども採用可能である。その下層のアルミニウム箔
（２）としては、５〜１５ミクロン程度の厚みを採用
し、ポリエチレン層（３）は２００〜１０００ミクロン
の厚みに形成したものを用いる。合成樹脂製発泡体
（１）としては発泡スチロールあるいはプラスチック発
泡体等が採用され、１０ｍｍ〜３０ｍｍ程度の厚みに形
成する。これらの板材を貼り合わせる接着剤としては、
フェノール樹脂系、エポキシ樹脂系、ユリア樹脂系など
から選ばれる。なお、ここで示した数値に本発明の芯材
パネルは限定されるものでなく、要求厚みあるいは要求
強度に応じて選択する。EXAMPLES Examples of the present invention will be shown below. Printed paper was used as the decorative material (4) in the present invention shown in FIG. 1, but a vinyl chloride sheet, vinyl cloth, etc. may also be used. The lower aluminum foil (2) has a thickness of about 5 to 15 microns, and the polyethylene layer (3) has a thickness of 200 to 1000 microns. Styrofoam, plastic foam, or the like is adopted as the synthetic resin foam (1), and is formed to have a thickness of about 10 mm to 30 mm. As an adhesive to bond these plate materials,
It is selected from phenol resin type, epoxy resin type, urea resin type and the like. The core material panel of the present invention is not limited to the numerical values shown here, and is selected according to the required thickness or required strength.

【０００７】[0007]

【発明の効果】本発明の芯材パネルはそれぞれ特性の異
なる表面化粧材、アルミニウム、ポリエチレン、合成樹
脂発泡体を表裏対象に組合せて積層形成したものであ
り、以下に示す優れた効果が得られる。本発明でその芯
となる合成樹脂製発泡体（１）は、アルミニウム箔
（２）を持って両側からポリエチレン層（３）に挟まれ
るので外部からの水分を完全に遮断し軽量でありながら
強い強度と形状維持性が既に確保されており、外表面の
化粧材（４）はその下層のアルミニウム箔（２）によっ
て保護強化され、これらが接着剤によって一体化される
ことでドアの芯材パネルとしての剛性と歪防止性は完璧
に満たされる。EFFECT OF THE INVENTION The core material panel of the present invention is formed by laminating surface decorative materials, aluminum, polyethylene, and synthetic resin foams having different characteristics, respectively, on the front and back sides, and has the following excellent effects. . The synthetic resin foam (1), which is the core of the present invention, is sandwiched between the polyethylene layers (3) from both sides by holding the aluminum foil (2), so that it completely shields moisture from the outside and is lightweight and strong. The strength and shape retention have already been secured, and the outer surface decorative material (4) is protected and strengthened by the aluminum foil (2) below it, and these are integrated by an adhesive to make a door core panel. Its rigidity and distortion resistance are perfectly satisfied.

【０００８】[0008]

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１ 合成樹脂製発泡体 ２ アルミニウム箔 ３ ポリエチレン層 ４ 化粧材 1 Foam made of synthetic resin 2 Aluminum foil 3 Polyethylene layer 4 Decorative material

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 住宅用の軽量ドアに用いる芯材パネルに
おいて、両面にアルミニウム箔を接着した合成樹脂製発
泡体の両面へポリエチレン層を形成すると共に、前記ポ
リエチレン層の両表面へさらにアルミニウム箔を貼り合
わせて、この両表面に化粧材を配設したことを特徴とす
るドアの芯材パネル。1. In a core material panel used for a lightweight door for a house, polyethylene layers are formed on both sides of a synthetic resin foam having aluminum foil adhered on both sides, and aluminum foil is further formed on both sides of the polyethylene layer. A door core panel, which is obtained by laminating and disposing a decorative material on both surfaces.