JP2000079607A - Integrated wood - Google Patents

Integrated wood

Info

Publication number
JP2000079607A
JP2000079607A JP10252766A JP25276698A JP2000079607A JP 2000079607 A JP2000079607 A JP 2000079607A JP 10252766 A JP10252766 A JP 10252766A JP 25276698 A JP25276698 A JP 25276698A JP 2000079607 A JP2000079607 A JP 2000079607A
Authority
JP
Japan
Prior art keywords
wood
integrated
density
material layer
adhesive
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.)
Withdrawn
Application number
JP10252766A
Other languages
Japanese (ja)
Inventor
Naoki Murakami
直己 村上
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP10252766A priority Critical patent/JP2000079607A/en
Publication of JP2000079607A publication Critical patent/JP2000079607A/en
Withdrawn legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide an integrated wood with small expansion coefficient of thickness after water absorption and excellent dimensional stability and excellent strength. SOLUTION: In an integrated wood 1 which provides an integrated wood layer 2 prepd. by heat press molding of small pieces of wood 6 whose fiber directions are arranged in the longitudinal direction and which are cut into narrow tablet-like shapes under a condition where their fiber directions are approximately arranged in a definite direction through an adhesive, the small pieces of wood 6 are formed of acacia-mangium with a log density of at least 0.5 g/cm3.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、集積木材に関す
る。
[0001] The present invention relates to accumulated wood.

【0002】[0002]

【従来の技術】建築用材料として、近年、性能のばらつ
きが少なく、強度性能が保証されたティンバーエンジニ
アリングのための木材製品として、エンジニアリング・
ウッズと称される特開昭57−84838号公報に開示
されているような集積木材を使用する傾向が強くなって
いる。
2. Description of the Related Art In recent years, as a building material, there has been little variation in performance, and as a wood product for timbre engineering whose strength performance has been guaranteed, engineering and engineering
There is an increasing tendency to use accumulated wood as disclosed in JP-A-57-84838 called Woods.

【0003】すなわち、このような集積木材は、原木か
らまず、細長い短冊状をした木材小片を得たのち、この
木材小片を繊維方向が一致するように配向させた状態
で、多数集積して、圧縮しつつ相互に接着一体化するこ
とによって製造されるようになっている。したがって、
これまで有効に活用されているとは言えなかった小径木
をも原木として使用でき、資源の有効利用を図ることが
できると言う利点を備えている。
[0003] In other words, such accumulated wood is obtained by first obtaining a strip of wood in the form of an elongated strip from the raw wood, and then stacking a large number of such wood pieces in a state where the wood directions are aligned so that the fiber directions match. It is manufactured by bonding and integrating with each other while compressing. Therefore,
Small diameter trees that have not been effectively used so far can also be used as raw wood, and have the advantage that resources can be effectively used.

【0004】しかしながら、従来の上記集積木材の場
合、湿度の影響を受けやすく、日本の夏のような高温多
湿の気候風土の土地では、施工後に寸法が伸縮したり、
反りが発生したり、強度低下を起こす恐れがあった。そ
こで、本発明の発明者は、吸水厚さ膨張率が7.0%以
下にすれば、上記の問題が解決できると言う知見を得
た。そして、さらに鋭意検討した結果、木材小片の原木
として密度の大きいものを用いればよいのではないかと
考え、密度の比較的高い地中海松やラジアータパインな
どを原木として用いようとしたが、いずれも十分なもの
ではなかった。
[0004] However, in the case of the above-mentioned conventional integrated wood, it is susceptible to the influence of humidity.
There was a possibility that warpage would occur or strength would decrease. Then, the inventor of the present invention has found that the above problem can be solved by setting the coefficient of expansion of the water absorption thickness to 7.0% or less. As a result of further diligent studies, we thought that it would be better to use high density wood as a small piece of wood, and tried to use relatively high density Mediterranean pine and radiata pine as raw wood. It was not something.

【0005】[0005]

【発明が解決しようとする課題】本発明は、このような
事情に鑑みて、吸水厚さ膨張率が小さく優れた寸法安定
性を有し、強度的に優れた集積木材を提供することを目
的としている。
SUMMARY OF THE INVENTION In view of the foregoing, an object of the present invention is to provide an integrated wood material having a small water absorption thickness expansion coefficient, excellent dimensional stability, and excellent strength. And

【0006】[0006]

【課題を解決するための手段】このような目的を達成す
るために、本発明にかかる集積木材は、長手方向に繊維
方向を揃えて短冊状に切断された木材小片が、その繊維
方向を略一定方向に揃えた状態で接着剤を介して加熱圧
着成形されてなる集積材層を備えている集積木材におい
て、木材小片が、原木密度0.5g/cm3 以上のアカシ
ア・マンギュームから形成されている構成とした。
In order to achieve such an object, the integrated wood according to the present invention is characterized in that a piece of wood cut into a strip with the fiber direction aligned in the longitudinal direction has a fiber direction substantially the same. In an integrated wood provided with an integrated material layer formed by heating and press-bonding via an adhesive while being aligned in a certain direction, a piece of wood is formed from acacia mangume having a log density of 0.5 g / cm 3 or more. Configuration.

【0007】上記本発明の集積木材において、請求項2
のように、密度が0.55g/cm3以上まで圧密化され
ていることが好ましく、請求項3のように、表面部分に
化粧材層が積層されていることが好ましい。吸水厚さ膨
張率が7.0%以下となるものが好ましい。
[0007] In the integrated wood of the present invention, claim 2
It is preferable that the density is reduced to 0.55 g / cm 3 or more, and it is preferable that the decorative material layer is laminated on the surface portion. Those having a water absorption thickness expansion coefficient of 7.0% or less are preferable.

【0008】また、本発明において、接着剤としては、
特に限定されないが、たとえば、ポリメリックMDI等
のイソシアネート系接着剤、フェノール系接着剤などが
挙げられる。接着剤の塗布量は、特に限定されないが、
木材小片に対して3〜8重量%の割合いで塗布すること
が好ましい。
In the present invention, the adhesive may be
Although not particularly limited, for example, an isocyanate-based adhesive such as polymeric MDI, a phenol-based adhesive and the like can be mentioned. The amount of the adhesive applied is not particularly limited,
It is preferable to apply 3 to 8% by weight to small pieces of wood.

【0009】木材小片の厚みは、特に限定されないが、
0.5〜5mm程度が好ましい。木材小片の幅は、特に限
定されないが、5〜30mm程度が好ましい。
[0009] The thickness of the wood piece is not particularly limited.
It is preferably about 0.5 to 5 mm. The width of the wood piece is not particularly limited, but is preferably about 5 to 30 mm.

【0010】木材小片の長さは、特に限定されないが、
150mm以上が好ましい。木材小片の製造方法は、特に
限定されないが、たとえば、ストランダーを用いて原木
から直接木材小片を製造する方法、原木から一旦薄いベ
ニヤ単板を切り出し、このベニヤ単板をロータリーカッ
ターや多列ディスクスリッター等の切断装置によって繊
維方向に細長い短冊状あるいはスティック状に切断する
方法等が挙げられる。
[0010] The length of the wood piece is not particularly limited,
It is preferably 150 mm or more. The method of manufacturing the wood pieces is not particularly limited.For example, a method of manufacturing wood pieces directly from the log using a strander, a method of once cutting a thin veneer veneer from the wood, and using a veneer with a rotary cutter or a multi-row disk A method of cutting into a strip shape or a stick shape elongated in the fiber direction by a cutting device such as a slitter is exemplified.

【0011】化粧材層を形成する化粧材としては、特に
限定されないが、天然木の突板、合成樹脂製の化粧フィ
ルムシート等が挙げられる。化粧フィルムを構成する合
成樹脂としては、特に限定されないが、ポリ塩化ビニ
ル、ABS樹脂等が挙げられる。
The decorative material for forming the decorative material layer is not particularly limited, and examples thereof include a veneer made of natural wood and a decorative film sheet made of synthetic resin. The synthetic resin constituting the decorative film is not particularly limited, and examples thereof include polyvinyl chloride and ABS resin.

【0012】得られる集積木材の密度は、原木の密度よ
り大きければ、特に限定されないが、高い寸法安定性が
求められるならば、0.65g/cm3 以上とすることが
好ましい。化粧材層と集積材層との接着に用いる接着剤
としては、特に限定されいなが、たとえば、イソシアネ
ート系接着剤、エポキシ系接着剤等が挙げられる。
The density of the obtained integrated wood is not particularly limited as long as it is higher than the density of the raw wood, but if high dimensional stability is required, it is preferably 0.65 g / cm 3 or more. The adhesive used for bonding the decorative material layer and the integrated material layer is not particularly limited, and examples thereof include an isocyanate-based adhesive and an epoxy-based adhesive.

【0013】[0013]

【発明の実施の形態】以下に、本発明の実施の形態を、
図面を参照しつつ詳しく説明する。図1は、本発明にか
かる集積木材の1つの実施の形態をあらわしている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
This will be described in detail with reference to the drawings. FIG. 1 shows one embodiment of the integrated wood according to the present invention.

【0014】図1に示すように、この集積木材1は、集
積材層2と、この集積材層2の表面を被覆する化粧材層
3とを備えている。集積材層2は、0.5g/cm3 以上
の密度を有するアカシア・マンギューム原木から得られ
た木材小片が熱硬化性樹脂接着剤を介して加熱圧密化さ
れて0.65g/cm3 以上の密度に形成されている。
As shown in FIG. 1, the integrated wood 1 includes an integrated material layer 2 and a decorative material layer 3 covering the surface of the integrated material layer 2. The integrated material layer 2 is formed by heat-compacting a piece of wood obtained from Acacia mangum log having a density of 0.5 g / cm 3 or more through a thermosetting resin adhesive to form a wood piece of 0.65 g / cm 3 or more. The density is formed.

【0015】化粧材層3は、後述する合成樹脂製の化粧
フィルム31が、接着剤を介して集積材層2の厚み方向
の両面に接着一体化されている。この集積木材1の製造
方法は、まず、0.5g/cm3 以上の密度を有するアカ
シア・マンギュームの原木からベニヤ単板(図示せず)
を得たのち、このベニヤ単板をロータリーカッターで切
断し、長手方向に平行に繊維が並んだ所定幅の短冊状の
木材小片を得る。
The decorative material layer 3 has a synthetic film 31 made of a synthetic resin, which will be described later, bonded and integrated to both sides in the thickness direction of the integrated material layer 2 via an adhesive. The method of manufacturing the integrated wood 1 is as follows: first, a veneer veneer (not shown) is used from a log of Acacia mangum having a density of 0.5 g / cm 3 or more.
After obtaining the veneer veneer, the veneer veneer is cut with a rotary cutter to obtain strips of wood having a predetermined width in which fibers are arranged in parallel in the longitudinal direction.

【0016】つぎに、得られた木材小片を必要に応じて
乾燥させたのち、図2に示すようなドラムブレンダー4
に入れ、ドラムブレンダー4内で熱硬化性樹脂接着剤5
を噴霧して木材小片6に熱硬化性樹脂接着剤5を含浸塗
布する。
Next, the obtained small pieces of wood are dried if necessary, and then the drum blender 4 shown in FIG.
And the thermosetting resin adhesive 5 in the drum blender 4
Is sprayed to impregnate and apply the thermosetting resin adhesive 5 to the small wood pieces 6.

【0017】そして、図3に示すように、このようにし
て得られた接着剤付き木材小片61を木材小片供給装置
(図示せず)から搬送用ベルトコンベヤ8上に供給して
各集積材層となる所定厚みの接着剤付き木材小片61の
マット状物62としたのち、マット状物62を連続的に
開放型水蒸気噴射加熱プレス成形装置9の加圧板91,
91間で加熱圧縮して集積材層2を成形したのち、図3
に示すように、集積材層2の表裏面にロール(図示せ
ず)から供給される化粧材層3となる化粧フィルム31
を連続的に貼着して長尺の集積木材1を連続的に得るこ
とができる。また、この長尺の集積木材1を一定寸法に
切断し、定尺の集積木材1を得ることができる。
Then, as shown in FIG. 3, the wood pieces 61 with the adhesive thus obtained are supplied from a wood piece supply device (not shown) onto the conveyor belt conveyor 8 and each of the integrated material layers After forming the mat-like material 62 of the wood piece 61 with the adhesive having a predetermined thickness, the mat-like material 62 is continuously pressed by the pressing plate 91,
After forming the integrated material layer 2 by heating and compressing between layers 91, FIG.
As shown in FIG. 3, a decorative film 31 serving as a decorative material layer 3 supplied from a roll (not shown) on the front and back surfaces of the integrated material layer 2
Can be continuously adhered to obtain a long integrated wood 1 continuously. Further, the long integrated wood 1 can be cut into a fixed size to obtain a fixed integrated wood 1.

【0018】なお、図3中、32は化粧フィルム31と
集積材層2との接着に用いる接着剤、33は接着剤32
の供給装置である。
In FIG. 3, reference numeral 32 denotes an adhesive used for bonding the decorative film 31 and the integrated material layer 2, and reference numeral 33 denotes an adhesive 32.
Supply device.

【0019】この集積木材1は、以上のように、木材小
片が、0.5g/cm3 以上の密度を有するアカシア・マ
ンギュームで形成されているので、吸水厚さ膨張率が
7.0%以下となる。したがって、水を吸水してもその
膨張率が小さく寸法変化が少ない。勿論、乾燥時にも寸
法変化が少ない。すなわち、寸法安定性に優れ、反りな
どもなく、構造材として優れた強度を発揮する。
As described above, since the wood piece is formed of Acacia mangume having a density of 0.5 g / cm 3 or more, the accumulated wood 1 has a water absorption thickness expansion rate of 7.0% or less. Becomes Therefore, even if water is absorbed, its expansion coefficient is small and its dimensional change is small. Of course, there is little dimensional change during drying. That is, it has excellent dimensional stability, does not warp, and exhibits excellent strength as a structural material.

【0020】また、表面が化粧材層で被覆されているの
で、構造材としてだけではなく、表面材としても使用す
ることができ、集積木材の用途が広がる。
Further, since the surface is covered with the decorative material layer, it can be used not only as a structural material but also as a surface material, and the use of the integrated wood is expanded.

【0021】本発明にかかる集積木材は、上記の実施の
形態に限定されない。たとえば、上記の実施の形態で
は、木材小片を得たのちにこの木材小片に接着剤を塗布
するようにしているが、ベニヤ単板に予めロールコータ
ー法等によって接着剤を塗布したのち、このべニヤ単板
をロータリーカッターや多列ディスクスリッター等の切
断手段で切断して接着剤付きの木材小片を得るようにし
ても構わない。
The accumulated wood according to the present invention is not limited to the above embodiment. For example, in the above embodiment, an adhesive is applied to a piece of wood after obtaining the piece of wood. However, the adhesive is applied to a veneer veneer in advance by a roll coater method or the like, and then the adhesive is applied to the piece of veneer. The near veneer may be cut by a cutting means such as a rotary cutter or a multi-row disk slitter to obtain a small piece of wood with an adhesive.

【0022】また、上記の実施の形態では、開放式水蒸
気加熱プレス成形装置を用いて、加熱圧縮するようにし
ていたが、密閉式のものを用いても構わないし、加熱手
段も水蒸気だけでなく、高周波加熱を用いるようにして
も構わない。さらに、上記の実施の形態では、集積材層
の厚み方向の両面に化粧材層が形成されていたが、4面
に設けるようにしても構わないし、表面材として使用し
た時に建物の内壁面等の外部に露出する部分のみに設け
るようにしても構わない。
Further, in the above embodiment, the heat compression is carried out by using the open type steam heating press molding apparatus. However, a closed type may be used, and the heating means is not limited to steam. Alternatively, high-frequency heating may be used. Furthermore, in the above-described embodiment, the decorative material layers are formed on both surfaces in the thickness direction of the integrated material layer. However, the decorative material layers may be provided on four surfaces, or when used as surface materials, the inner wall surface of a building or the like. It may be provided only in a portion exposed to the outside of the device.

【0023】上記の実施の形態では、化粧材層が連続的
に集成材層の表面に積層されるようになっているが、集
積材層となる集成木材を製造したのち、この集積木材表
面に化粧材層となる突板や化粧フィルムシートを貼着す
るようにしても構わない。
In the above embodiment, the decorative material layer is continuously laminated on the surface of the laminated wood layer. However, after the laminated wood to be the laminated wood layer is manufactured, the laminated wood surface is A veneer or a decorative film sheet serving as a decorative material layer may be attached.

【0024】[0024]

【実施例】以下に、本発明の実施例をより詳しく説明す
る。
Embodiments of the present invention will be described below in more detail.

【0025】(実施例1)ポリメリックMDIが5重量
%の割合で塗布された密度0.6g/cm3 のアカシア・
マンギュームの厚み3mm、幅15mm、長さ500mmの木
材小片を、マット状に積層し、開放型水蒸気噴射プレス
成形装置で加熱圧密化し、密度0.71g/cm3 、厚さ
42mm、幅240mm、長さ1000mmの集積木材を得
た。
Example 1 Acacia having a density of 0.6 g / cm 3 coated with 5% by weight of polymeric MDI
Small pieces of wood with a thickness of 3 mm, a width of 15 mm and a length of 500 mm of a mangume are laminated in a mat shape and heat-consolidated by an open-type steam jet press molding apparatus, and have a density of 0.71 g / cm 3 , a thickness of 42 mm, a width of 240 mm and a length 1000 mm of integrated wood was obtained.

【0026】(実施例2)開放型水蒸気噴射プレス成形
装置に代えて密閉型水蒸気噴射プレス成形装置を用いた
以外は、実施例1と同様にして密度0.75g/cm3
厚さ42mm、幅500mm、長さ500mmの集積木材を得
た。
(Example 2) A density of 0.75 g / cm 3 was obtained in the same manner as in Example 1 except that a closed type steam injection press molding apparatus was used instead of the open type steam injection press molding apparatus.
An integrated wood having a thickness of 42 mm, a width of 500 mm, and a length of 500 mm was obtained.

【0027】(比較例1)アカシア・マンギュームに代
えて、密度0.6g/cm3 の地中海松を用いた以外は、
実施例1と同様にして密度0.7g/cm3 、厚さ42m
m、幅240mm、長さ1000mmの集積木材を得た。 (比較例2)アカシア・マンギュームに代えて、密度
0.55g/cm3 のラジアータパインを用いた以外は、
実施例1と同様にして密度0.66g/cm3 、厚さ42
mm、幅240mm、長さ1000mmの集積木材を得た。
(Comparative Example 1) A Mediterranean pine having a density of 0.6 g / cm 3 was used in place of Acacia mangium.
In the same manner as in Example 1, the density is 0.7 g / cm 3 and the thickness is 42 m.
m, a width of 240 mm and a length of 1000 mm were obtained. (Comparative Example 2) A radiator pine having a density of 0.55 g / cm 3 was used in place of Acacia mangium,
As in Example 1, the density was 0.66 g / cm 3 , and the thickness was 42.
mm, a width of 240 mm and a length of 1000 mm were obtained.

【0028】(比較例3)アカシア・マンギュームに代
えて、密度0.45g/cm3 のカメレレを用いた以外
は、実施例1と同様にして密度0.62g/cm3 、厚さ
42mm、幅240mm、長さ1000mmの集積木材を得
た。 (比較例4)アカシア・マンギュームに代えて、密度
0.43g/cm3 のカメレレを用いた以外は、実施例2
と同様にして密度0.60g/cm3 、厚さ42mm、幅5
00mm、長さ500mmの集積木材を得た。
(Comparative Example 3) A density of 0.62 g / cm 3 , a thickness of 42 mm, and a width were obtained in the same manner as in Example 1 except that a chamelere having a density of 0.45 g / cm 3 was used instead of Acacia mangume. An integrated wood having a length of 240 mm and a length of 1000 mm was obtained. (Comparative Example 4) Example 2 except that a chamelere having a density of 0.43 g / cm 3 was used instead of Acacia mangume.
Density 0.60 g / cm 3 , thickness 42 mm, width 5
An integrated wood of 00 mm and length of 500 mm was obtained.

【0029】(比較例5)アカシア・マンギュームに代
えて、密度0.30g/cm3 のファルカータを用いた以
外は、実施例1と同様にして密度0.45g/cm3 、厚
さ42mm、幅240mm、長さ1000mmの集積木材を得
た。 (比較例6)アカシア・マンギュームに代えて、密度
0.29g/cm3 のファルカータを用いた以外は、実施
例2と同様にして密度0.43g/cm3 、厚さ42mm、
幅500mm、長さ500mmの集積木材を得た。
(Comparative Example 5) A density of 0.45 g / cm 3 , a thickness of 42 mm, and a width were obtained in the same manner as in Example 1 except that a falcata having a density of 0.30 g / cm 3 was used instead of Acacia mangume. An integrated wood having a length of 240 mm and a length of 1000 mm was obtained. (Comparative Example 6) A density of 0.43 g / cm 3 , a thickness of 42 mm, and a density of 0.29 g / cm 3 were used in the same manner as in Example 2 except that falcata having a density of 0.29 g / cm 3 was used instead of Acacia mangium.
An integrated wood having a width of 500 mm and a length of 500 mm was obtained.

【0030】上記の実施例1,2および比較例1〜4で
得られた集積木材から、厚さ40mm、幅40mm、長さ5
0mmのサンプル(n数=5)を切取り、各サンプルの密
度を求めるとともに、各サンプルを20℃の水に24時
間浸漬し水から引上げたのちのサンプルの厚み、重さを
調べた。つぎに、水から引き上げた、各サンプルを70
℃の雰囲気中で24時間乾燥し、乾燥後のサンプルの厚
みおよび重さを調べ、吸水時の吸水厚さ膨張率(以下、
「膨張率」と記す)、吸水率、および、乾燥時の復元
率、含水率を調べ、その結果を表1に示した。なお、結
果は5つのサンプルの平均であらわした。
From the integrated wood obtained in Examples 1 and 2 and Comparative Examples 1 to 4, a thickness of 40 mm, a width of 40 mm and a length of 5
A sample of 0 mm (n = 5) was cut out, the density of each sample was determined, and each sample was immersed in water at 20 ° C. for 24 hours, pulled up from the water, and the thickness and weight of the sample were examined. Next, each sample was taken out of the water to 70
The sample was dried in an atmosphere at a temperature of 24 ° C. for 24 hours, and the thickness and weight of the dried sample were examined.
The "expansion rate"), the water absorption rate, the restoration rate upon drying, and the water content were examined. The results are shown in Table 1. In addition, the result was represented by the average of five samples.

【0031】[0031]

【表1】 [Table 1]

【0032】上記表1から、本発明の集積木材が、密閉
式は元より、開放式のプレス成形方法を用いた場合であ
っても、膨張率および吸水率が低く、復元率も高く、寸
法安定性に優れていることがよくわかる。
From Table 1 above, it can be seen that the integrated wood of the present invention has a low expansion rate and a high water absorption rate, a high restoration rate, and a high size even when an open press molding method is used as well as a closed type. It can be clearly seen that the stability is excellent.

【0033】また、実施例1,2および比較例1〜6で
得られた集積木材について、曲げ弾性率、曲げ強度を調
べその結果を表2に示した。なお、曲げ弾性率および曲
げ強度は、JAS構造用集成材の曲げ試験(A)の方法
により測定した。
The flexural modulus and flexural strength of the integrated woods obtained in Examples 1 and 2 and Comparative Examples 1 to 6 were examined, and the results are shown in Table 2. The flexural modulus and the flexural strength were measured by the method of the bending test (A) of the glued laminated material for JAS structure.

【0034】[0034]

【表2】 [Table 2]

【0035】表2から、本発明の集積木材が、他の原木
を用いた集積木材に比べて、十分な強度を備えているこ
とがよくわかる。
Table 2 clearly shows that the integrated wood of the present invention has a sufficient strength as compared with the integrated wood using other raw wood.

【0036】[0036]

【発明の効果】本発明にかかる集積木材は、以上のよう
に構成されているので、吸水厚さ膨張率が小さく優れた
寸法安定性を有し、強度的に優れている。したがって、
高温多湿な日本などの気候環境を有する土地でも、建築
物の構造材として十分に使用することができる。
Since the integrated wood according to the present invention is constructed as described above, it has a small swelling coefficient of water absorption thickness, excellent dimensional stability, and excellent strength. Therefore,
It can be used satisfactorily as a structural material for buildings even in lands with a climatic environment such as Japan, which is hot and humid.

【0037】また、請求項2のようにすれば、より寸法
安定性を増す。請求項3のようにすれば、構造材として
だけではなく、表面材としても使用することができる。
Further, according to the second aspect, the dimensional stability is further increased. According to claim 3, it can be used not only as a structural material but also as a surface material.

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

【図1】本発明にかかる集積木材の1つの実施の形態を
あらわす断面図である。
FIG. 1 is a sectional view showing one embodiment of an integrated wood according to the present invention.

【図2】本発明にかかる集積木材の製造方法の1つの実
施の形態であって、その木材小片への接着剤の塗布工程
を模式的に説明する説明図である。
FIG. 2 is one embodiment of the method for manufacturing an integrated wood according to the present invention, and is an explanatory view schematically illustrating a process of applying an adhesive to a piece of wood.

【図3】本発明にかかる集積木材の製造方法の1つの実
施の形態であって、その加熱圧縮工程および化粧材層積
層工程を模式的に説明する説明図である。
FIG. 3 is one embodiment of the method for manufacturing an integrated wood according to the present invention, and is an explanatory view schematically illustrating a heating compression step and a decorative material layer laminating step.

【符号の説明】[Explanation of symbols]

1 集積木材 2 集積材層 3 化粧材層 5 熱硬化性樹脂接着剤 6 木材小片 REFERENCE SIGNS LIST 1 integrated wood 2 integrated material layer 3 decorative material layer 5 thermosetting resin adhesive 6 wood piece

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】長手方向に繊維方向を揃えて切断または割
裂された木材小片が、その繊維方向を略一定方向に揃え
た状態で接着剤を介して加熱圧着成形されてなる集積材
層を備えている集積木材において、木材小片が、原木密
度0.5g/cm3 以上のアカシア・マンギュームから形
成されていることを特徴とする集積木材。
An integrated material layer formed by cutting and splitting a piece of wood which has been cut or split with its fiber direction aligned in the longitudinal direction, with the fiber direction aligned in a substantially constant direction, with an adhesive applied thereto under heat and pressure. The integrated wood according to claim 1, wherein the wood pieces are made of Acacia mangume having a log density of 0.5 g / cm 3 or more.
【請求項2】密度が0.55g/cm3 以上である請求項
1に記載の集積木材。
2. The integrated wood according to claim 1, wherein the density is 0.55 g / cm 3 or more.
【請求項3】表面部分に、化粧材層が積層されている請
求項1または請求項2に記載の集積木材。
3. The integrated wood according to claim 1, wherein a decorative material layer is laminated on a surface portion.
JP10252766A 1998-09-07 1998-09-07 Integrated wood Withdrawn JP2000079607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10252766A JP2000079607A (en) 1998-09-07 1998-09-07 Integrated wood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10252766A JP2000079607A (en) 1998-09-07 1998-09-07 Integrated wood

Publications (1)

Publication Number Publication Date
JP2000079607A true JP2000079607A (en) 2000-03-21

Family

ID=17242009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10252766A Withdrawn JP2000079607A (en) 1998-09-07 1998-09-07 Integrated wood

Country Status (1)

Country Link
JP (1) JP2000079607A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007136876A (en) * 2005-11-18 2007-06-07 Daiken Trade & Ind Co Ltd Laminated composite wooden material
JP2008173810A (en) * 2007-01-17 2008-07-31 Matsushita Electric Works Ltd Method for producing functional particle board
WO2009084248A1 (en) * 2007-12-27 2009-07-09 Sekisui Chemical Co., Ltd. Wood composite material and process for producing the same
DE102017110122A1 (en) * 2017-05-10 2018-11-15 Dieffenbacher GmbH Maschinen- und Anlagenbau Method for producing a material plate and a material plate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007136876A (en) * 2005-11-18 2007-06-07 Daiken Trade & Ind Co Ltd Laminated composite wooden material
JP2008173810A (en) * 2007-01-17 2008-07-31 Matsushita Electric Works Ltd Method for producing functional particle board
WO2009084248A1 (en) * 2007-12-27 2009-07-09 Sekisui Chemical Co., Ltd. Wood composite material and process for producing the same
JP2009154437A (en) * 2007-12-27 2009-07-16 Sekisui Chem Co Ltd Wood composite material and method for manufacturing the same
DE102017110122A1 (en) * 2017-05-10 2018-11-15 Dieffenbacher GmbH Maschinen- und Anlagenbau Method for producing a material plate and a material plate

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