JP2000141524A - Fiber laminated board and its manufacture - Google Patents
Fiber laminated board and its manufactureInfo
- Publication number
- JP2000141524A JP2000141524A JP10314826A JP31482698A JP2000141524A JP 2000141524 A JP2000141524 A JP 2000141524A JP 10314826 A JP10314826 A JP 10314826A JP 31482698 A JP31482698 A JP 31482698A JP 2000141524 A JP2000141524 A JP 2000141524A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- fiber laminate
- laminate board
- thermoplastic resin
- thickness direction
- 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.)
- Granted
Links
Landscapes
- Nonwoven Fabrics (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、繊維積層体ボー
ド、および繊維積層体ボードの製造方法に関する。The present invention relates to a fiber laminate board and a method for manufacturing the fiber laminate board.
【０００２】[0002]
【従来の技術】繊維材料に熱可塑性樹脂を混在してなる
繊維積層体を加熱加圧して成形してなる繊維積層体ボー
ドは、ドアトリム基材、インナーパネル、ピラーガーニ
シュ、リヤパッケージ、天井基材、衝撃吸収材、吸音材
等自動車の内装材として、壁材、床材、床下の衝撃吸収
材、断熱材等の建材として、スピーカボックス、吸音材
等の機器材料として、広い分野で使用されている。2. Description of the Related Art A fiber laminate board formed by heating and pressing a fiber laminate in which a thermoplastic resin is mixed with a fiber material is formed of a door trim base material, an inner panel, a pillar garnish, a rear package, and a ceiling base. Used in a wide range of fields as interior materials of automobiles, such as materials, shock absorbing materials, sound absorbing materials, building materials such as wall materials, floor materials, under floor shock absorbing materials, heat insulating materials, and speaker box, sound absorbing materials, etc. ing.
【０００３】また、当該繊維積層体ボードにおける特殊
な構造のものとして、表面層が硬くて中央部が柔軟な繊
維積層体ボード、これとは逆に、中央部が硬くて表面層
が柔軟な繊維積層体ボードがある。これらの構造の繊維
積層体ボードは、吸音、吸湿、衝撃吸収、外観の柔軟な
感覚等の効果を狙って使用される。As a special structure of the fiber laminate board, a fiber laminate board having a hard surface layer and a flexible central portion, and conversely, a fiber having a hard central layer and a flexible surface layer. There is a laminate board. The fiber laminate board having such a structure is used for effects such as sound absorption, moisture absorption, shock absorption, and flexible appearance.
【０００４】かかる特殊な複層構造の繊維積層体ボード
は、硬質の繊維積層体と軟質の繊維積層体を張り合わさ
れた複数の繊維積層体からなるもので、硬質の繊維積層
体を成形する工程と、軟質の繊維積層体を成形する工程
と、成形された両繊維積層体を張り合す工程の３つの独
立した工程を経て製造される。A fiber laminate board having such a special multi-layer structure is composed of a plurality of fiber laminates in which a hard fiber laminate and a soft fiber laminate are laminated, and a step of forming a hard fiber laminate. And a step of forming a soft fiber laminate and a step of laminating both formed fiber laminates.
【０００５】[0005]
【発明が解決しようとする課題】このように、上記した
特殊な複層構造の繊維積層体ボードは、硬質の繊維積層
体と軟質の繊維積層体を張り合わされた構造であること
から、これら両張り合わせ界面では剥がれ易く、両繊維
積層体間で界面剥離を生じ易いという問題がある。ま
た、当該繊維積層体ボードの製造には、それぞれ独立し
た複数の繊維積層体を製造する工程、およびこれらの各
繊維積層体を張り合わせる張合工程等、多くの製造工程
が必要であり、その製造コストが高くなるとともに、多
くの製造時間を要することになる。As described above, the above-mentioned fiber laminate board having a special multilayer structure has a structure in which a hard fiber laminate and a soft fiber laminate are bonded to each other. There is a problem that the lamination interface is easily peeled, and the interfacial delamination is easily generated between both fiber laminates. In addition, the production of the fiber laminate board requires a number of production steps, such as a step of producing a plurality of independent fiber laminates, and a bonding step of laminating each of these fiber laminates. The manufacturing cost increases and a lot of manufacturing time is required.
【０００６】従って、本発明の目的は、繊維積層体の厚
み方向で硬さが異なる短層構造の繊維積層体ボードを構
成して、界面剥離の発生を解消するとともに、その製造
工程を簡単化して、製造時間の短縮と製造コストの低減
を図ることにある。Accordingly, an object of the present invention is to provide a fiber laminate board having a short-layer structure in which the hardness differs in the thickness direction of the fiber laminate so as to eliminate the occurrence of interfacial separation and to simplify the manufacturing process. Accordingly, it is an object of the present invention to reduce the manufacturing time and the manufacturing cost.
【０００７】[0007]
【課題を解決するための手段】本発明は、繊維積層体ボ
ードおよびその製造方法に関するもので、特に、繊維材
料に熱可塑性樹脂を混在してなる繊維積層体を加熱加圧
して成形してなる繊維積層体ボードに関する。The present invention relates to a fiber laminate board and a method for producing the same, and more particularly, to a fiber laminate comprising a thermoplastic resin mixed with a fiber material, which is formed by heating and pressing. The present invention relates to a fiber laminate board.
【０００８】しかして、本発明に係る繊維積層体ボード
は、厚み方向の一側面から他側面または厚み方向の中央
から両側面に、漸次硬さを異にしていることを特徴とす
るものである。[0008] The fiber laminate board according to the present invention is characterized in that the hardness is gradually different from one side in the thickness direction to the other side or from the center in the thickness direction to both sides. .
【０００９】本発明に係る繊維積層体ボードにおいて
は、前記繊維積層体は天然繊維であること、同天然繊維
はケナフの靭皮から得られるケナフ繊維であることが好
ましく、また、前記熱可塑性樹脂は熱可塑性樹脂の繊
維、粉末、溶剤溶液であること、同熱可塑性樹脂は熱可
塑性の生分解性プラスチックであること、同生分解性プ
ラスチックはベンジル化セルロース、ラウロイル化セル
ロース、またはポリエチレングリコールを混在させたア
セテートであることが好ましい。In the fiber laminate board according to the present invention, it is preferable that the fiber laminate is a natural fiber, and the natural fiber is a kenaf fiber obtained from kenaf bast. Is a thermoplastic resin fiber, powder, or solvent solution.The thermoplastic resin is a thermoplastic biodegradable plastic.The biodegradable plastic is a mixture of benzylated cellulose, lauroylated cellulose, or polyethylene glycol. Preferably, it is acetate.
【００１０】また、本発明に係る繊維積層体ボードの製
造方法は、本発明に係るこれらの各繊維積層体ボードを
製造する方法であり、熱可塑性樹脂の混在率を異にする
薄層の繊維ウェブを熱可塑性樹脂または熱可塑性樹脂か
らなる繊維の混在率の大小の順に積層して前記繊維積層
体を形成し、同繊維積層体を加熱加圧して繊維積層体ボ
ードに成形することを特徴とするものである。Further, the method for producing a fiber laminate board according to the present invention is a method for producing each of these fiber laminate boards according to the present invention, and comprises a thin layer fiber having a different mixing ratio of a thermoplastic resin. Forming a fiber laminate by laminating a web of thermoplastic resin or thermoplastic resin in the order of the mixing ratio of fibers made of thermoplastic resin, and forming the fiber laminate by heating and pressing to form a fiber laminate board. Is what you do.
【００１１】[0011]
【発明の作用・効果】本発明に係る繊維積層体ボード
は、厚み方向の一側面から他側面または厚み方向の中央
から両側面に漸次硬さを異にする内部構造を有するもの
であって、従来の表面層が硬くて中央部が柔軟な繊維積
層体ボードや、これとは逆に、従来の中央部が硬くて表
面層が柔軟な繊維積層体ボード等と同様な特性を備えて
いる。The fiber laminate board according to the present invention has an internal structure in which the hardness gradually varies from one side in the thickness direction to the other side or from the center in the thickness direction to both sides. It has the same characteristics as a conventional fiber laminate board having a hard surface layer and a flexible central portion, and conversely, a conventional fiber laminate board having a hard central portion and a flexible surface layer.
【００１２】しかして、本発明に係る繊維積層ボード
は、硬さの異なる繊維積層体を複数張り合わせた複層構
造のものではなく、全体としては短層構造であって層間
界面が存在していないことから、層間剥離が発生するこ
とはない。また、本発明に係る繊維積層体ボードにおい
ては、繊維ウェブの製造から繊維積層体の加熱加圧まで
の連続した一連の工程で製造することができるため、製
造工程を簡単化して、製造時間の短縮と製造コストの低
減を図ることができる。However, the fiber laminated board according to the present invention does not have a multi-layer structure in which a plurality of fiber laminates having different hardnesses are laminated, but has a short-layer structure as a whole and has no interlayer interface. Therefore, delamination does not occur. Further, in the fiber laminate board according to the present invention, since it can be produced in a continuous series of steps from the production of the fibrous web to the heating and pressing of the fiber laminate, the production process is simplified, and the production time is reduced. Shortening and manufacturing cost can be reduced.
【００１３】本発明に係る繊維積層体ボードにおいて、
その原料である繊維材料としてセルロース系繊維等の天
然繊維を採用し、かつ、熱可塑性樹脂として生分解性プ
ラスチックを採用すれば、生分解性の繊維積層体ボード
を構成することができ、これにより、廃棄物処理対策等
からの環境適合性を有するものとなる。In the fiber laminate board according to the present invention,
If a natural fiber such as a cellulosic fiber is used as the fiber material as the raw material, and a biodegradable plastic is used as the thermoplastic resin, a biodegradable fiber laminate board can be formed. Therefore, it is environmentally compatible with waste treatment measures.
【００１４】また、本発明に係る繊維積層体ボードにお
いては、その原料である繊維材料としてケナフの靭皮か
ら採取したケナフ繊維を採用することができる。ケナフ
は、一年草であって熱帯地方および温帯地方での成長が
極めて早く容易に栽培できること、および、ケナフの靭
皮にはセルロース分が６０％以上と高い含有率で存在し
ていることから、天然資源として極めて有用に活用する
ことができる。Further, in the fiber laminate board according to the present invention, kenaf fibers collected from kenaf bast can be used as the fiber material as a raw material. Kenaf is an annual plant that grows very quickly and easily in the tropics and temperate regions, and has a high cellulose content of over 60% in kenaf bast. It can be very usefully utilized as a natural resource.
【００１５】[0015]
【発明の実施の形態】本発明に係る繊維積層体ボードに
おいては、繊維材料として天然繊維である各種のセルロ
ース系繊維、例えば木質系や草本系のセルロース系繊維
を採用することができる。これらのうちでも、一年草で
あって熱帯地方および温帯地方での成長が極めて早く容
易に栽培できる草本類に属するケナフから採取される繊
維を採用することが、天然資源の有用活用の面、リサイ
クルの面から好ましい。特に、ケナフの靭皮にはセルロ
ース分が６０％以上と高い含有率で存在していることか
ら、ケナフ靭皮から採取されるケナフ繊維の利用が好ま
しい。BEST MODE FOR CARRYING OUT THE INVENTION In the fiber laminate board according to the present invention, various cellulosic fibers which are natural fibers, for example, wood or herbaceous cellulosic fibers can be used as the fiber material. Among them, the use of fiber collected from kenaf, which belongs to a herbaceous plant that can be cultivated very quickly and easily in the tropics and temperate regions, which is an annual grass, is important in terms of the effective use of natural resources, It is preferable from the viewpoint of recycling. In particular, the use of kenaf fibers collected from kenaf bast is preferable because the kenaf bast has a high cellulose content of 60% or more.
【００１６】一方、繊維積層体ボードの原材料であり、
繊維材料のバインダとして機能する熱可塑性樹脂として
は、ポリプロピレン等の低融点の合成樹脂、低融点の生
分解性プラスチック等であって、粉末の状態、溶媒溶液
の状態、または繊維の状態で使用することができる。こ
れらのうちでも、生分解性プラスチックを採用すること
が好ましく、これにより、廃棄物処理対策等からの環境
に適合する生分解性の繊維積層体ボードを製造すること
ができる。好適に採用できる生分解性プラスチックとし
ては、セルロース系プラスチックであるベンジル化セル
ロース、ラウロイル化セルロース、ポリエチレングリコ
ールを含有するアセテート等を挙げることができる。On the other hand, it is a raw material of a fiber laminate board,
As the thermoplastic resin that functions as a binder for the fiber material, a low melting point synthetic resin such as polypropylene, a low melting point biodegradable plastic, or the like is used in a powder state, a solvent solution state, or a fiber state. be able to. Among these, it is preferable to employ biodegradable plastics, whereby a biodegradable fiber laminate board suitable for the environment from waste treatment measures and the like can be manufactured. Examples of biodegradable plastics that can be suitably used include cellulose-based plastics such as benzylated cellulose, lauroylated cellulose, and acetate containing polyethylene glycol.
【００１７】セルロース系プラスチックであるベンジル
化セルロース、ラウロイル化セルロースは、本特許出願
人がすでに特願平１０−２９７３１０号として特許出願
しているもので、下記（化１）、（化２）に示す化学構
造式を有しているものである。Benzylated cellulose and lauroylated cellulose, which are cellulosic plastics, have already been filed by the present applicant as Japanese Patent Application No. 10-297310, and are described in the following (Chemical Formula 1) and (Chemical Formula 2). It has the chemical structural formula shown below.
【００１８】[0018]
【化１】 Embedded image
【００１９】[0019]
【化２】 ベンジル化セルロース（化１）は、融点１３５℃〜１６
５℃（ベンジル基の置換度２．４）を有し、かつ、ラウ
ロイル化セルロース（化２）は、融点１１０℃〜１２２
℃（ラウロイル基の置換度２．５〜２．８）を有する。
また、ポリエチレングリコールを含有するアセテート
は、アセテートに３０ｗｔ．％のポリエチレングリコー
ルを混合してなる組成物では、１５５℃〜１７０℃の融
点を有する熱可塑性の組成物である。これらのセルロー
ス系プラスチックは、セルロースの分子骨格に起因する
生分解性を有している。Embedded image Benzylated cellulose (Chemical formula 1) has a melting point of 135 ° C to 16 ° C.
Lauroylated cellulose (Chemical Formula 2) has a melting point of 110 ° C. to 122 ° C. (degree of substitution of benzyl group: 2.4).
(Degree of substitution of lauroyl group: 2.5 to 2.8).
Acetate containing polyethylene glycol was added to the acetate in an amount of 30 wt. % Of polyethylene glycol is a thermoplastic composition having a melting point of 155 ° C to 170 ° C. These cellulosic plastics have biodegradability due to the molecular skeleton of cellulose.
【００２０】本発明に係る繊維積層体ボードは、繊維材
料に熱可塑性樹脂を繊維状態、粉末状態、または、溶媒
溶液状態で混在してなる繊維積層体を加熱加圧して成形
してなるもので、その一実施形態の繊維積層体ボード
は、厚み方向の一側面から他側面に漸次硬さを異にして
いる断面構造を有しているものであり、また、他の一実
施形態の繊維積層体ボードは、中央部が硬質または軟質
で厚み方向の中央から両側面に漸次硬さを異にする断面
構造を有しているものである。なお、後者の実施形態の
繊維積層体ボードにおいては、その厚み方向の中央部に
て縦断して前者と同様の内部構造の繊維積層体ボードと
して使用することもできる。The fiber laminate board according to the present invention is formed by heating and pressing a fiber laminate in which a thermoplastic resin is mixed with a fibrous material in a fibrous state, a powder state, or a solvent solution state. The fiber laminate board of one embodiment has a cross-sectional structure in which the hardness gradually varies from one side surface to the other side in the thickness direction, and the fiber laminate board of another embodiment. The body board has a cross-sectional structure in which the center portion is hard or soft and the hardness gradually varies from the center in the thickness direction to both side surfaces. In addition, in the fiber laminated board of the latter embodiment, it can also be used as a fiber laminated board of the same internal structure as the former by cutting longitudinally at the center in the thickness direction.
【００２１】本発明に係る繊維積層体ボードのうち、前
者の実施形態（一実施形態）の繊維積層体ボードは、表
面または裏面が硬く裏面側または表面側が柔軟な、全体
として軽量で適度の剛性を有するボードであり、後者の
実施形態（他の実施形態）の繊維積層体ボードの一方
は、中央部が硬く表裏両面側が柔軟な全体として軽量で
適度の剛性を有するボードであり、かつ、後者の実施形
態（他の実施形態）の繊維積層体ボードの他方は、中央
部が柔軟で表裏両面側が硬い全体として軽量で高い剛性
を有するボードである。従って、当該繊維積層体ボード
においては、その内部構造に対応した特性に応じて適宜
の分野の基材、建材、内装材、機器材料として広い分野
で使用することができる。Among the fiber laminate boards according to the present invention, the fiber laminate board of the former embodiment (one embodiment) has a hard front surface or a back surface and a flexible rear surface or a front surface side, and is lightweight and moderately rigid as a whole. One of the fiber laminate boards of the latter embodiment (other embodiment) is a board that has a central portion that is hard and the front and back surfaces are flexible, is lightweight as a whole and has appropriate rigidity, and The other of the fiber laminate boards of the embodiment (other embodiment) is a board that is light in weight and has high rigidity as a whole, in which the central portion is flexible and the front and back surfaces are hard. Therefore, the fiber laminate board can be used in a wide range of fields as a base material, a building material, an interior material, and a device material in an appropriate field according to characteristics corresponding to the internal structure.
【００２２】しかして、当該繊維積層体ボードは、硬さ
の異なる複数の繊維積層体を張り合わせた複層構造では
なく、単層構造であって層間界面が存在していないこと
から、層間剥離が発生することはない。However, the fiber laminate board is not a multilayer structure in which a plurality of fiber laminates having different hardnesses are bonded to each other, but has a single-layer structure and has no interlayer interface. It does not occur.
【００２３】当該繊維積層体ボードにおいて、その原料
である繊維材料としてセルロース系繊維等の天然繊維を
採用し、かつ、熱可塑性樹脂として生分解性プラスチッ
クの繊維、粉末、溶媒溶液を採用することにより、生分
解性の繊維積層体ボードを構成することができ、これに
より、廃棄物処理対策等からの環境適合性を有するもの
となる。この場合、繊維積層体ボードの原料である繊維
材料として、ケナフ繊維を採用すれば、天然資源として
極めて有用に活用することができる。In the fiber laminate board, a natural fiber such as a cellulosic fiber is used as a fiber material as a raw material, and a fiber, a powder, and a solvent solution of a biodegradable plastic are used as a thermoplastic resin. Thus, a biodegradable fiber laminate board can be formed, thereby having environmental compatibility with waste treatment measures and the like. In this case, if kenaf fiber is used as a fiber material that is a raw material of the fiber laminate board, it can be very effectively utilized as a natural resource.
【００２４】図１は、本発明に係る繊維積層体ボードの
製造方法の一例を示す製造工程図である。本発明に係る
製造方法は、同図に示すように、繊維原料であるケナフ
の靭皮から繊維を採取して解繊するまでのケナフ繊維解
繊工程、熱可塑性繊維の原綿を解繊する熱可塑性繊維解
繊工程、これら両繊維の繊維ウェブを積層して繊維積層
体を形成する積層工程、および、繊維積層体を加熱加圧
して維積層体ボードを形成するプレス工程を備えてい
る。FIG. 1 is a manufacturing process diagram showing an example of a method for manufacturing a fiber laminate board according to the present invention. As shown in the figure, the production method according to the present invention includes a kenaf fiber defibration process until fibers are collected from the bast of kenaf, which is a fiber raw material, and kenaf is fibrillated. It comprises a plastic fiber defibration step, a lamination step of laminating fiber webs of both fibers to form a fiber laminate, and a press step of heating and pressing the fiber laminate to form a fiber laminate board.
【００２５】ケナフ繊維解繊工程では、所定の長さに切
断された靭皮をカード機に掛けて解繊維して綿状とする
ものであり、また、熱可塑性繊維解繊工程では、梱包さ
れている原綿をベールオープナーに掛けて開繊し、か
つ、カード機に掛けて解繊して綿状とするものであり、
解繊されたケフナ繊維綿および熱可塑性繊維綿は、積層
工程の各ホッパへ供給される。In the kenaf fiber defibration step, the bast cut into a predetermined length is laid on a carding machine to defibrate to a flocculent form. The raw cotton is spread on a bale opener to open it, and it is spread on a carding machine to make it into cotton.
The defibrated Kefna fiber cotton and the thermoplastic fiber cotton are supplied to each hopper in the laminating process.
【００２６】積層工程においては、各ホッパ１１，１２
が搬送ベルト１３の上方にて並列状に配設されており、
第１ホッパ１１からは設定された一定量の熱可塑性繊維
２１が搬送ベルト１３上に連続して供給されるととも
に、第２ホッパ１２からは設定された一定量のケナフ繊
維２２が搬送ベルト１３上の熱可塑性繊維２１上に連続
して供給されて合体される。各ホッパ１１，１２から搬
送ベルト１３上に供給される熱可塑性繊維２１およびケ
ナフ繊維２２の供給量は、各ホッパ１１，１２の供給口
側に設けた供給ローラ１１ａ，１２ａの回転数を制御す
ることにより任意に変更することができる。In the laminating step, each hopper 11, 12
Are arranged in parallel above the conveyor belt 13, and
A set fixed amount of thermoplastic fiber 21 is continuously supplied from the first hopper 11 onto the transport belt 13, and a set fixed amount of kenaf fiber 22 is supplied from the second hopper 12 onto the transfer belt 13. Are continuously supplied onto the thermoplastic fibers 21 and are united. The supply amount of the thermoplastic fiber 21 and the kenaf fiber 22 supplied from the hoppers 11 and 12 onto the conveyor belt 13 controls the rotation speed of the supply rollers 11a and 12a provided on the supply port side of the hoppers 11 and 12. This can be changed arbitrarily.
【００２７】搬送ベルト１３上で積層された熱可塑性繊
維綿２１とケナフ繊維綿２２とは、カード機１４に掛け
られて均一に混合され、連続した薄い繊維ウェブ２３と
してバーチカルラッパ１５に掛けられて多数層に積層さ
れ、繊維ウェブ２３が多数層に積層された繊維積層体２
４に形成される。本積層工程においては、熱可塑性繊維
２１とケナフ繊維２２の合体時、熱可塑性繊維２１のケ
ナフ繊維２２に対する供給割合を、間欠的に順次増大さ
せるとととも途中からは間欠的に順次減少させる制御を
行うことにより、繊維積層体２４の厚み方向の中央部で
のケナフ繊維２２の混合割合を高く、かつ、表裏両側ほ
ど熱可塑性繊維２１の混合割合を高くしている。The thermoplastic fibrous cotton 21 and the kenaf fibrous cotton 22 laminated on the conveyor belt 13 are hung on a carding machine 14 to be uniformly mixed and hung on a vertical wrapper 15 as a continuous thin fibrous web 23. Fiber laminate 2 laminated in multiple layers and fiber web 23 laminated in multiple layers
4 is formed. In this lamination step, when the thermoplastic fiber 21 and the kenaf fiber 22 are united, the supply ratio of the thermoplastic fiber 21 to the kenaf fiber 22 is increased intermittently and intermittently decreased from the middle. Is performed, the mixing ratio of the kenaf fibers 22 at the center in the thickness direction of the fiber laminate 24 is increased, and the mixing ratio of the thermoplastic fibers 21 is increased toward both the front and back sides.
【００２８】なお、熱可塑性繊維２１とケナフ繊維２２
との合体時の供給割合の変更により、繊維積層体２４の
厚み方向の中央部での熱可塑性繊維２１の混合割合を高
く、かつ、表裏両側ほどケナフ繊維２２の混合割合を高
くすること、繊維積層体２４の厚み方向の一方の面側か
ら熱可塑性繊維２１のケナフ繊維２２の混合割合を高く
または小さくすることは容易である。The thermoplastic fiber 21 and the kenaf fiber 22
The mixing ratio of the thermoplastic fibers 21 at the center in the thickness direction of the fiber laminate 24 is increased by increasing the mixing ratio of the kenaf fibers 22 on both the front and back sides by changing the supply ratio at the time of combining the fibers. It is easy to increase or decrease the mixing ratio of the kenaf fibers 22 of the thermoplastic fibers 21 from one side in the thickness direction of the laminate 24.
【００２９】形成された繊維積層体２４は、プレス工程
にて加熱加圧処理されて繊維積層体ボードに成形され
る。プレス工程では、所定の大きさに調製された繊維積
層体２４をプレス機１６にて１枚毎に加熱加圧処理する
もので、繊維積層体２４は加熱加圧により所定形状の繊
維積層体ボードに成形される。The formed fiber laminate 24 is heated and pressurized in a pressing step to form a fiber laminate board. In the pressing step, the fiber laminate 24 adjusted to a predetermined size is subjected to heat and pressure treatment by a press machine 16 for each sheet. Molded into
【００３０】得られた繊維積層体ボードは、中央部が軟
質で両面側へ漸次硬くなる断面構造を有している。な
お、上記したごとく、繊維積層体２４の厚み方向におけ
る熱可塑性繊維２２のケナフ繊維２１に対する混合割合
を変更することにより、中央部が硬質で両面側へ漸次柔
軟な断面構造、一方の面側から硬さが漸次大きくまたは
小さくなる断面構造の繊維積層体ボードの容易に製造す
ることができる。The obtained fiber laminate board has a cross-sectional structure in which the central portion is soft and gradually hardens on both sides. As described above, by changing the mixing ratio of the thermoplastic fiber 22 to the kenaf fiber 21 in the thickness direction of the fiber laminate 24, the central portion is hard, and the cross-sectional structure is gradually flexible to both sides, from one surface side. A fiber laminate board having a sectional structure in which the hardness gradually increases or decreases can be easily manufactured.
【００３１】しかして、当該製造方法によれば、繊維ウ
ェブの製造から繊維積層体２４の加熱加圧処理までの連
続した一連の工程で製造することができるため、製造工
程を簡単化して製造時間の短縮と、製造コストの低減を
図ることができる。However, according to the production method, since the production can be performed in a continuous series of steps from the production of the fibrous web to the heating and pressurizing treatment of the fiber laminate 24, the production process is simplified and the production time is reduced. And the manufacturing cost can be reduced.
【００３２】なお、当該製造方法においては、熱可塑性
繊維２２として低融点であるポリプロピレン繊維を採用
することが製造上好ましいが、生分解性の繊維積層体ボ
ードを製造するには、上記したごとき生分解性プラスチ
ックからなる熱可塑性繊維を採用することが好ましい。
また、熱可塑性繊維２２に換えて、熱可塑性プラスチッ
クの粉末、溶媒溶液等を採用することができ、この場合
には、熱可塑性繊維解繊維工程を省略するとともに、熱
可塑性プラスチックの付与工程を追加することにより行
える。In the manufacturing method, it is preferable to use polypropylene fiber having a low melting point as the thermoplastic fiber 22. However, in order to manufacture a biodegradable fiber laminate board, it is preferable to use It is preferable to use thermoplastic fibers made of degradable plastic.
Further, instead of the thermoplastic fiber 22, a powder of a thermoplastic resin, a solvent solution, or the like can be adopted. In this case, the thermoplastic fiber defibrification step is omitted, and a thermoplastic plastic application step is added. Can be performed.
【図１】本発明の一例に係る繊維積層体ボードの製造工
程を概略的に示す説明である。FIG. 1 is a diagram schematically illustrating a manufacturing process of a fiber laminate board according to an example of the present invention.
１１，１２…ホッパ、１３…搬送ベルト、１４…カード
機、１５…バーチカルラッパー、１６…第１プレス機、
２１…ケナフ繊維、２２…熱可塑性繊維、２３…繊維ウ
ェブ、２４…繊維積層体。11, 12 hopper, 13 transport belt, 14 card machine, 15 vertical wrapper, 16 first press machine,
21: Kenaf fiber, 22: Thermoplastic fiber, 23: Fiber web, 24: Fiber laminate.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０８Ｊ 5/04 ＣＥＰ Ｃ０８Ｊ 5/04 ＣＥＰ Ｄ０４Ｈ 1/60 Ｄ０４Ｈ 1/60 Ｂ２９Ｋ 103:00 105:12 Ｂ２９Ｌ 9:00 Ｃ０８Ｌ 101:00 Ｆターム(参考） 4F072 AB02 AB03 AB33 AC02 AD01 AK14 4F100 AJ01A AJ02A AJ06A AK01A AK07 BA01 BA42 DE01A DG01A DG06 EH012 EJ172 EJ202 EJ422 GB07 GB08 GB33 GB48 JB16A JC00A JK06 JL02 JL16 4F204 AA01J AB25 AC04 AG03 AH26 AH48 FB01 FB22 FF01 FG02 FG07 FN11 FN15 4L047 AA08 AA12 AB02 AB06 BA23 CA07 CB10 CC08 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification code FI Theme coat ゛ (Reference) C08J 5/04 CEP C08J 5/04 CEP D04H 1/60 D04H 1/60 B29K 103: 00 105: 12 B29L 9 : 00 C08L 101: 00 F term (reference) 4F072 AB02 AB03 AB33 AC02 AD01 AK14 4F100 AJ01A AJ02A AJ06A AK01A AK07 BA01 BA42 DE01A DG01A DG06 EH012 EJ172 EJ202 EJ422 GB07 GB08 GB33 GB48 JB16A04 J03A04 J03A04 FB22 FF01 FG02 FG07 FN11 FN15 4L047 AA08 AA12 AB02 AB06 BA23 CA07 CB10 CC08
Claims (6)
維積層体を加熱加圧して成形してなる繊維積層体ボード
であり、当該繊維積層体ボードは、厚み方向の一側面か
ら他側面または厚み方向の中央から両側面に、漸次硬さ
を異にしていることを特徴とする繊維積層体ボード。1. A fiber laminate board formed by heating and pressing a fiber laminate in which a thermoplastic resin is mixed in a fiber material, wherein the fiber laminate board is formed from one side in the thickness direction to the other side. Alternatively, a fiber laminate board characterized in that hardness is gradually varied from a center in a thickness direction to both side surfaces.
て、前記熱可塑性樹脂は熱可塑性繊維であることを特徴
とする繊維積層体ボード。2. The fiber laminate board according to claim 1, wherein said thermoplastic resin is a thermoplastic fiber.
ドにおいて、前記繊維積層体は天然繊維と熱可塑性樹脂
を混合させた積層体であることを特徴とする繊維積層体
ボード。3. The fiber laminate board according to claim 1, wherein the fiber laminate is a laminate in which natural fibers and a thermoplastic resin are mixed.
て、前記天然繊維はケナフの靭皮繊維であり、かつ、前
記熱可塑性樹脂は熱可塑性の生分解性プラスチックの繊
維、粉末、または溶剤溶液であることを特徴とする繊維
積層体ボード。4. The fiber laminate board according to claim 3, wherein the natural fibers are kenaf bast fibers, and the thermoplastic resin is a thermoplastic biodegradable plastic fiber, powder, or solvent. A fiber laminate board, which is a solution.
て、前記生分解性プラスチックはベンジル化セルロー
ス、ラウロイル化セルロース、またはポリエチレングリ
コールを混在させたアセテートであることを特徴とする
繊維積層体ボード。5. The fiber laminate board according to claim 4, wherein the biodegradable plastic is an acetate mixed with benzylated cellulose, lauroylated cellulose, or polyethylene glycol. .
維積層体ボードを製造する方法であり、熱可塑性樹脂の
混在率を異にする薄層の繊維ウェブを熱可塑性樹脂の混
在率の大小の順に積層して前記繊維積層体を形成し、同
繊維積層体を加熱加圧して繊維積層体ボードを成形する
ことを特徴とする繊維積層体ボードの製造方法。6. A method for producing a fiber laminate board according to claim 1, wherein the thin fiber web having a different mixing ratio of the thermoplastic resin is made of a thermoplastic resin. A method of manufacturing a fiber laminate board, comprising laminating the fiber laminate in the order of the mixture ratio to form the fiber laminate, and heating and pressing the fiber laminate to form a fiber laminate board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31482698A JP4132304B2 (en) | 1998-11-05 | 1998-11-05 | Fiber laminate board and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31482698A JP4132304B2 (en) | 1998-11-05 | 1998-11-05 | Fiber laminate board and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000141524A true JP2000141524A (en) | 2000-05-23 |
| JP4132304B2 JP4132304B2 (en) | 2008-08-13 |
Family
ID=18058073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31482698A Expired - Fee Related JP4132304B2 (en) | 1998-11-05 | 1998-11-05 | Fiber laminate board and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4132304B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002027091A2 (en) * | 2000-09-27 | 2002-04-04 | Araco Kabushiki Kaisha | Molded fiber materials and methods and apparatus for making the same |
| JP2004141655A (en) * | 2002-10-02 | 2004-05-20 | Toray Ind Inc | Game machine member and game machine |
| WO2004063282A1 (en) * | 2003-01-10 | 2004-07-29 | Nec Corporation | Kenaf-fiber-reinforced resin composition |
| JP2005000208A (en) * | 2003-06-09 | 2005-01-06 | Toyo Kasei Kk | Game board for game machine |
| JP2007284808A (en) * | 2006-04-13 | 2007-11-01 | Toyota Auto Body Co Ltd | Fiber board and method for bonding the same |
| CN100363432C (en) * | 2003-01-10 | 2008-01-23 | 日本电气株式会社 | Kenaf-fiber-reinforced resin composition |
| CN100447325C (en) * | 2003-05-20 | 2008-12-31 | 丰田纺织株式会社 | Fiber shaped body and method for making said fiber shaped body |
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-
1998
- 1998-11-05 JP JP31482698A patent/JP4132304B2/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN1296546C (en) * | 2000-09-27 | 2007-01-24 | 亚乐克株式会社 | Molded fiber materials and methods and apparatus for making the same |
| JP2002105824A (en) * | 2000-09-27 | 2002-04-10 | Araco Corp | Layered fiber board, method of producing the same and device for making the same |
| WO2002027091A3 (en) * | 2000-09-27 | 2002-11-28 | Araco Kk | Molded fiber materials and methods and apparatus for making the same |
| WO2002027091A2 (en) * | 2000-09-27 | 2002-04-04 | Araco Kabushiki Kaisha | Molded fiber materials and methods and apparatus for making the same |
| US7513967B2 (en) | 2000-09-27 | 2009-04-07 | Toyota Boshoku Kabushiki Kaisha | Molded fiber materials and methods and apparatus for making the same |
| JP2004141655A (en) * | 2002-10-02 | 2004-05-20 | Toray Ind Inc | Game machine member and game machine |
| JP4529406B2 (en) * | 2002-10-02 | 2010-08-25 | 東レ株式会社 | Gaming machine parts and gaming machines |
| WO2004063282A1 (en) * | 2003-01-10 | 2004-07-29 | Nec Corporation | Kenaf-fiber-reinforced resin composition |
| CN100363432C (en) * | 2003-01-10 | 2008-01-23 | 日本电气株式会社 | Kenaf-fiber-reinforced resin composition |
| US7445835B2 (en) | 2003-01-10 | 2008-11-04 | Nec Corporation | Kenaf-fiber-reinforced resin composition |
| JPWO2004063282A1 (en) * | 2003-01-10 | 2006-05-18 | 日本電気株式会社 | Kenaf fiber reinforced resin composition |
| CN100447325C (en) * | 2003-05-20 | 2008-12-31 | 丰田纺织株式会社 | Fiber shaped body and method for making said fiber shaped body |
| JP2005000208A (en) * | 2003-06-09 | 2005-01-06 | Toyo Kasei Kk | Game board for game machine |
| JP2007284808A (en) * | 2006-04-13 | 2007-11-01 | Toyota Auto Body Co Ltd | Fiber board and method for bonding the same |
| JP4715606B2 (en) * | 2006-04-13 | 2011-07-06 | トヨタ車体株式会社 | Fiber board and joining method thereof |
| JP2012193466A (en) * | 2011-03-16 | 2012-10-11 | Doshisha | Nonwoven fabric, method for producing the nonwoven fabric, and sandwiched material including the nonwoven fabric |
| JP2015183321A (en) * | 2014-03-25 | 2015-10-22 | セイコーエプソン株式会社 | sheet and sheet manufacturing apparatus |
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