JPH02263604A - Ligneous molded body and its manufacture - Google Patents
Ligneous molded body and its manufactureInfo
- Publication number
- JPH02263604A JPH02263604A JP8557489A JP8557489A JPH02263604A JP H02263604 A JPH02263604 A JP H02263604A JP 8557489 A JP8557489 A JP 8557489A JP 8557489 A JP8557489 A JP 8557489A JP H02263604 A JPH02263604 A JP H02263604A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- wood
- layer
- binder
- molded body
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims abstract description 35
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 28
- 239000011230 binding agent Substances 0.000 claims abstract description 18
- 239000002023 wood Substances 0.000 claims description 24
- 238000000748 compression moulding Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 238000007666 vacuum forming Methods 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はハードボード等内装材、家具材等として使用さ
れる木質系成形体に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a wood-based molded product used as interior materials such as hardboards, furniture materials, etc.
（従来技術）
木質系成形体の一種類として特開昭６２−９０２０３号
公報に示されているように、長繊維、短繊維および粉末
を含有する木質系成形体と結合剤との素材集合体を圧縮
成形してなる木質系成形体があり、同成形体は一般にハ
ードボードの名称で知られている。(Prior art) As shown in Japanese Patent Application Laid-Open No. 62-90203 as a type of wood-based molded product, a material aggregate of a wood-based molded product containing long fibers, short fibers, and powder and a binder is used. There is a wood-based molded product made by compression molding, and this molded product is generally known as hardboard.
（発明が解決しようとする課題）
ところで、この種の木質系成形体の製造には長繊維、短
繊維、粉末および結合剤を均一混合してなる素材集合体
を用いているため、長繊維、短繊維および粉末の均一混
合した成形体が得られ、当該成形体は高い強度を備えて
いるもののその両面には繊維の露出は避けられず、−側
面を意匠面として使用したい場合に同面の平滑化、微細
な模様付は等が困難である。(Problem to be Solved by the Invention) By the way, in the production of this type of wood-based molded article, a material aggregate made of a uniform mixture of long fibers, short fibers, powder, and a binder is used. A molded product containing a uniform mixture of short fibers and powder is obtained, and although the molded product has high strength, fibers are inevitably exposed on both sides. Smoothing, fine patterns, etc. are difficult.
従って、本発明の目的は、この種の木質系成形体におい
てその強度を低下させることなくその一側面を意匠面に
適した面にすることにある。Therefore, an object of the present invention is to provide one side of this type of wood-based molded article with a surface suitable for design without reducing its strength.
（課題を解決するための手段）
本発明は、長繊維、短繊維および粉末を含有する木質系
素材と結合剤との素材集合体を圧縮成形してなる木質系
成形体であり、当該成形体は前記長繊維、短繊維および
粉末の均一混合層の一側面に粉末の薄層を一体的に備え
ていることを特徴とするものである。(Means for Solving the Problems) The present invention is a wood-based molded article formed by compression molding a material aggregate of a wood-based material containing long fibers, short fibers, and powder and a binder, is characterized in that a thin layer of powder is integrally provided on one side of the uniformly mixed layer of long fibers, short fibers, and powder.
また、本発明は、上記した木質系成形体の製造方法であ
り、当該製造方法は前記長繊維、短繊維、粉末および結
合剤を均一混合してなる第１の素材集合体と、粉末およ
び結合剤を均一混合してなる第２の素材集合体とを成形
型内に収容して圧縮成形することを特徴とするものであ
る。The present invention also provides a method for manufacturing the above-mentioned wood-based molded article, and the method includes: a first material aggregate formed by uniformly mixing the long fibers, short fibers, powder, and a binder; A second material aggregate formed by uniformly mixing the agent is housed in a mold and compression molded.
（発明の作用・効果）
本発明に係る木質系成形体においては、従来の木質系成
形体と同じ素材からなる均一混合層の一側面に粉末を素
材とする薄層を一体的に備えているものであり、強度を
低下させることなく一側面での繊維の露出を防止するこ
とができる。従って、木質系成形体の一側面は平滑であ
り、また微細な模様付けが可能であることから意匠面と
して適している。(Operations and Effects of the Invention) In the wood-based molded article according to the present invention, a thin layer made of powder is integrally provided on one side of the uniformly mixed layer made of the same material as the conventional wood-based molded product. This makes it possible to prevent fibers from being exposed on one side without reducing strength. Therefore, one side of the wood-based molded product is smooth and can be patterned with fine patterns, making it suitable as a decorative surface.
一方、本発明に係る製造方法を採用すれば圧縮成形によ
り、第１の素材集合体が成形体を構成する均一混合層に
変換されかつ第２の素材集合体が粉末の薄層に変換され
、薄層の表面が繊維の露出しない平滑面となる。また、
これら両層は一方の繊維と他方の粉末の絡みおよび結合
剤の作用により互いに強固に結合する。従って、かかる
製造方法により本発明に係る木質系成形体を容易に得る
ことができる。On the other hand, if the manufacturing method according to the present invention is adopted, compression molding converts the first material aggregate into a uniform mixed layer constituting the molded body, and converts the second material aggregate into a thin layer of powder, The surface of the thin layer becomes a smooth surface with no exposed fibers. Also,
These two layers are firmly bonded to each other by the entanglement of the fibers on one side and the powder on the other side and the action of the binder. Therefore, the wood-based molded article according to the present invention can be easily obtained by such a manufacturing method.
（実施例）
以下本発明の一実施例を図面に基づいて説明するに、第
１図には本発明の一実施例に係る木質系成形体の部分縦
断面が示されている。当該成形体１０は複層構造のもの
で、第１層１１ａは長繊維、短繊維および粉末の均一混
合層であり、かつ第２層１２ａは粉末の薄層である。こ
れら各層１１ａ、１２ａの素材は結合剤にて結合されて
おり、かつこれら両層１１ａ、１２ａ間はかかる結合剤
および第１層１１ａの一側面に露出する繊維と第２層１
２ａの粉末との絡みにより互に結合している。(Example) An example of the present invention will be described below based on the drawings. Fig. 1 shows a partial longitudinal section of a wood-based molded article according to an example of the present invention. The molded body 10 has a multi-layer structure, the first layer 11a being a uniformly mixed layer of long fibers, short fibers and powder, and the second layer 12a being a thin layer of powder. The materials of each of these layers 11a and 12a are bonded together using a binder, and between the layers 11a and 12a, the bonding agent, the fibers exposed on one side of the first layer 11a, and the second layer 1
They are mutually bonded by entanglement with the powder of 2a.
第１層１１ａは木片を解繊機にて解繊してなる木質の繊
維、粉末を主体とし、必要により各種の長、短繊維を混
合してなるものに結合剤を均一混合した集合体を素材と
するもので、結合剤としてはフェノール系の熱硬化性合
成樹脂、熱可塑性合成樹脂等が採用される。第２層１２
ａは木質の粉末に結合剤を均一混合してなるもので、結
合剤としては上記した各種合成樹脂の接着剤が採用され
る。The first layer 11a is mainly made of wood fibers and powder made by defibrating wood chips using a defibrator, and if necessary, a mixture of various long and short fibers, and a uniform mixture of a binder. As the binder, a phenolic thermosetting synthetic resin, a thermoplastic synthetic resin, or the like is used. Second layer 12
A is made by uniformly mixing wood powder with a binder, and the above-mentioned various synthetic resin adhesives are used as the binder.
かかる構成の木質系成形体１０においては、第１層１１
ａが従来の木質系成形体の素材と同じであり、かつ同層
１１ａと一体の第２層１２ａは粉末を素材とする薄層で
あることから、強度を低下させることなく一側面での繊
維の露出を防止することができる。従って、木質系成形
体１０の一側面は平滑であり、また微細な模様付けが可
能であることから意匠面として適している。In the wood-based molded body 10 having such a configuration, the first layer 11
a is the same as the material of the conventional wood-based molded body, and the second layer 12a, which is integrated with the same layer 11a, is a thin layer made of powder, so that the fibers on one side are not reduced in strength. can prevent exposure. Therefore, one side of the wood-based molded body 10 is smooth and can be patterned with fine patterns, making it suitable as a design surface.
当該成形体１０は以下の方法により製造することができ
る。第２図および第３図は本発明の一実施例に係る製造
方法であり、当該製造方法には真空成形が採用されてい
る。真空成形型は上型２１および下型２２からなり、こ
れら両型２１．２２の上部、下部には図示しない加熱源
にて加熱される熱板２３．２４が設けられている。かか
る成形型においては下型２２の型面が意匠面であり、第
２図に示すように下型２２上に第２素材集合体１２ｂと
第１素材集合体１１ｂとが載置され、かつ第３図に示す
ように両素材集合体１１ｂ、１２ｂは両型２１．２２内
に収容された状態で加熱下圧綿成形される。この間、上
型２１の吸引空間２１ａおよび吸引孔２１ｂを通して負
圧源２５から両型２１．２２間に負圧を導びき、素材集
合体内のガス抜きが行なわれる。The molded body 10 can be manufactured by the following method. 2 and 3 show a manufacturing method according to an embodiment of the present invention, in which vacuum forming is employed. The vacuum forming mold consists of an upper mold 21 and a lower mold 22, and hot plates 23, 24 heated by a heating source (not shown) are provided at the upper and lower parts of both molds 21, 22. In such a mold, the mold surface of the lower mold 22 is the design surface, and as shown in FIG. 2, the second material assembly 12b and the first material assembly 11b are placed on the lower mold 22, and the As shown in FIG. 3, both material assemblies 11b and 12b are compressed under heat while being accommodated in both molds 21 and 22. During this time, a negative pressure is introduced between the two molds 21 and 22 from the negative pressure source 25 through the suction space 21a and the suction hole 21b of the upper mold 21, thereby degassing the material assembly.
しかして、当該製造方法において、第１素材集合体１１
ｂは長繊維、短繊維、粉末および結合剤を均一混合して
なるものであり、かつ第２素材集合体１２ｂは粉末およ
び結合剤を均一混合してなるものであって、第２素材集
合体１２ｂが下型２２の型面に載置されその上に第１素
材集合体１１ｂが重合される。当該製造方法によれば、
両素材集合体１１ｂ、１２ｂそれぞれが圧縮成形される
とともに結合剤により強固に結合し、かつ画集合体１１
ｂ、１２ｂ間においては第１素材集合体１１ｂの繊維が
第２素材集合体１２ｂの粉末に絡み、かつ結合剤の作用
により強固に結合する。すなわち、圧縮成形により第１
素材集合体１１ｂは第１層１１ａに変換されかつ第２素
材集合体１２ｂは第２層１２ａに変換されて成形体１０
となり、成形体１０の一側面である第２層１２ａの表面
は繊維が露出しない平滑面となる。Therefore, in the manufacturing method, the first material aggregate 11
b is made by uniformly mixing long fibers, short fibers, powder, and a binder; and the second material aggregate 12b is made by uniformly mixing powder and a binder; 12b is placed on the mold surface of the lower mold 22, and the first material aggregate 11b is polymerized thereon. According to the manufacturing method,
Both material assemblies 11b and 12b are compression-molded and firmly bonded with a binder, and the image assemblies 11
Between b and 12b, the fibers of the first material aggregate 11b are entangled with the powder of the second material aggregate 12b, and are firmly bonded by the action of the binder. That is, the first
The material aggregate 11b is converted into the first layer 11a, and the second material aggregate 12b is converted into the second layer 12a to form the molded body 10.
Therefore, the surface of the second layer 12a, which is one side of the molded body 10, is a smooth surface with no exposed fibers.
第１図は本発明の一実施例に係る木質成形体の部分縦断
面図、第２図および第３図は本発明の一実施例に係る製
造方法を説明する成形型の概略縦断面図である。
符号の説明
１０・・・成形体、ｌｌａ・・・第１層、１２ａ・第２
層、ｌｌｂ・・・第１素材集合体、１２ｂ・・・第２素
材集合体、２１・・・上型、２下型。FIG. 1 is a partial longitudinal cross-sectional view of a wooden molded article according to an embodiment of the present invention, and FIGS. 2 and 3 are schematic longitudinal cross-sectional views of a mold for explaining a manufacturing method according to an embodiment of the present invention. be. Explanation of symbols 10...Molded body, lla...First layer, 12a/Second layer
Layer, llb...first material aggregate, 12b...second material aggregate, 21...upper mold, 2nd lower mold.
Claims (2)
と結合剤との素材集合体を圧縮成形してなる木質系成形
体であり、当該成形体は前記長繊維、短繊維および粉末
の均一混合層の一側面に粉末の薄層を一体的に備えてい
ることを特徴とする木質系成形体。(1) A wood-based molded body formed by compression molding a material aggregate of a wood-based material containing long fibers, short fibers, and powder and a binder, and the molded body is made of the long fibers, short fibers, and powder. A wood-based molded article characterized by having a thin layer of powder integrally formed on one side of a uniformly mixed layer.
当該製造方法は前記長繊維、短繊維、粉末および結合剤
を均一混合してなる第１の素材集合体と、粉末および結
合剤を均一混合してなる第２の素材集合体とを成形型内
に収容して圧縮成形することを特徴とする木質系成形体
の製造方法。(2) A method for producing a wood-based molded article according to item 1,
In this manufacturing method, a first material aggregate formed by uniformly mixing the long fibers, short fibers, powder, and a binder and a second material aggregate formed by uniformly mixing the powder and binder are placed in a mold. 1. A method for producing a wood-based molded article, which comprises compressing and molding the molded article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8557489A JPH02263604A (en) | 1989-04-04 | 1989-04-04 | Ligneous molded body and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8557489A JPH02263604A (en) | 1989-04-04 | 1989-04-04 | Ligneous molded body and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02263604A true JPH02263604A (en) | 1990-10-26 |
Family
ID=13862584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8557489A Pending JPH02263604A (en) | 1989-04-04 | 1989-04-04 | Ligneous molded body and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02263604A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013188887A (en) * | 2012-03-12 | 2013-09-26 | Panasonic Corp | Fiberboard |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53114880A (en) * | 1977-06-01 | 1978-10-06 | Noda Plywood Mfg Co Ltd | Method for making fiber board having concave pattern |
-
1989
- 1989-04-04 JP JP8557489A patent/JPH02263604A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53114880A (en) * | 1977-06-01 | 1978-10-06 | Noda Plywood Mfg Co Ltd | Method for making fiber board having concave pattern |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013188887A (en) * | 2012-03-12 | 2013-09-26 | Panasonic Corp | Fiberboard |
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