JP4661368B2 - Method and apparatus for manufacturing fiber board - Google Patents
Method and apparatus for manufacturing fiber board Download PDFInfo
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Description
本発明は、釘やネジ、あるいはピンなどの突き刺し性やその保持性、および剛性に優れた繊維系ボードを効率的に得ることができ、繊維系ボードの密度および厚みを簡易的に調整できることから、釘やネジ、あるいはピンなどの突き刺し性やその保持性、および剛性を繊維系ボードの適用用途に応じて適宜設計でき、さらにボード製造時の裁断ロス率を低減でき、かつ、一定の密度のボードを安定的に得ることができる繊維系ボードの製造方法および製造装置、ならびに前記の製造方法、製造装置を用いて得られた繊維系ボードに関するものである。 The present invention can efficiently obtain a fiber-based board excellent in piercing properties, retention properties, and rigidity of nails, screws, pins, etc., and can easily adjust the density and thickness of the fiber-based board. In addition, it is possible to design the piercing property of nail, screw, pin, etc., its retention property and rigidity as appropriate according to the application purpose of the fiber board, further reduce the cutting loss rate at the time of board production, and at a constant density The present invention relates to a fiber board manufacturing method and manufacturing apparatus capable of stably obtaining a board, and a fiber board obtained using the manufacturing method and manufacturing apparatus.
従来から、床材や壁材などに代表される建築資材には、ブナ材などの木材の単板を積み重ね、接着剤を用いて張り合わせた合板や、粉砕した木材をフェノール樹脂などを塗布して一体化させたパーティクルボード等が多く用いられてきた。また近年では、木質繊維とフェノール樹脂などの熱硬化性樹脂を混合し、熱圧縮することで得られる繊維ボード、いわゆるＭＤＦ（中密度繊維板）なども建築資材やインテリア資材に広く用いられている。 Conventionally, building materials represented by flooring and wall materials are made by stacking wood veneers such as beech wood, and applying plywood laminated with adhesive or pulverized wood with phenol resin. Many integrated particle boards have been used. In recent years, fiber boards obtained by mixing wood fibers and thermosetting resins such as phenolic resins and heat compressing them, so-called MDF (medium density fiberboard), are also widely used for building materials and interior materials. .
また近年では、麻繊維やヤシ繊維などの天然繊維とポリエステルなどの熱可塑性の繊維を混合して不織布とし、これを積層し、さらに高温下で圧縮成形することにより、透湿性や剛性に優れた繊維ボードを得る技術が提案されている（例えば、特許文献１、２参照）。 In recent years, natural fibers such as hemp fiber and coconut fiber and thermoplastic fibers such as polyester are mixed to form a nonwoven fabric, which is then laminated and then compression molded at high temperatures, providing excellent moisture permeability and rigidity. Techniques for obtaining fiber boards have been proposed (see, for example, Patent Documents 1 and 2).
しかしながら、前記の文献において用いられる不織布などの具体的積層方法や繊維ボードの密度の調整方法は記載されていない。 However, there is no description of a specific method for laminating a nonwoven fabric or the like and a method for adjusting the density of the fiber board used in the above-mentioned document.
一方、ボードの生産効率向上のために、不織布などの材料を着脱具で突き刺し、自動でプレス装置に搬入することで、ボードの生産性を向上させる技術も提案されている（例えば、特許文献３参照）。 On the other hand, in order to improve the production efficiency of the board, a technique for improving the productivity of the board by piercing a material such as a non-woven fabric with a detachable tool and automatically carrying it into a press device has been proposed (for example, Patent Document 3). reference).
しかしながら、前記の文献においても不織布などの具体的積層方法やボードの密度の調整方法は記載されていない。
本発明の課題は、かかる従来技術の欠点に鑑み、釘やネジ、あるいはピンなどの突き刺し性やその保持性、および剛性に優れた繊維系ボードを効率的に得ることができ、繊維系ボードの密度および厚みを簡易的に調整できることから、釘やネジ、あるいはピンなどの突き刺し性やその保持性、および剛性を繊維系ボードの適用用途に応じて適宜設計でき、さらにボード製造時の裁断ロス率を低減でき、かつ、一定の密度のボードを安定的に得ることができる繊維系ボードの製造方法、製造装置および前記の製造方法、製造装置を用いて得られた繊維系ボードを提供せんとするものである。 In view of the disadvantages of the prior art, the object of the present invention is to efficiently obtain a fiber board excellent in piercing ability, retention ability and rigidity of nails, screws, pins, etc. Since the density and thickness can be easily adjusted, the piercing ability, retention, and rigidity of nails, screws, pins, etc. can be designed appropriately according to the application of the fiber board, and the cutting loss rate during board manufacture And a fiber board manufacturing method, a manufacturing apparatus, and a fiber board obtained by using the manufacturing method and the manufacturing apparatus, which can stably obtain a board having a constant density. Is.
本発明は、かかる課題を解決するために、次のような手段を採用する。すなわち、（１）Ａ．繊維を原料とした目付が１００〜４０００ｇ／ｍ２の範囲内の布状物を製造する工程、
Ｂ．前記布状物を任意の大きさに裁断する工程、
Ｃ．前記裁断された布状物を、積層する工程、
Ｄ．前記積層された布状物を加熱した後、圧縮するか、または加熱と圧縮を同時に行い、成形する工程、
の、少なくとも上記Ａ〜Ｄの工程を順次経てなるとともに、さらに、
ｂ．積層された布状物の重量を測定するための秤量台を用いて該布状物の重量を測定し、布状物の重量が任意に決められた重量設定値を超えた際に、積層された布状物を自動で次工程へ搬送する工程
を含むことを特徴とする繊維系ボードの製造方法。
（２）前記Ａ．布状物を任意の大きさに裁断する工程と前記Ｂ．布状物を任意の大きさに裁断する工程との間に、さらに
ａ．布状物を平面状の台の上に載置し、機械設備により前記台の上で少なくとも一方向に前記布状物を移動させ、前記布状物の位置を調整する工程を含むことを特徴とする（１）に記載の繊維系ボードの製造方法。
（３）前記布状物の位置を調整するaの工程において、少なくとも二方向に布状物を移動させ、布状物の位置を調整することを特徴とする（２）に記載の繊維系ボードの製造方法。
The present invention employs the following means in order to solve such problems. That is, (1) A. A step of producing a cloth-like material having a basis weight of 100 to 4000 g / m 2 using fiber as a raw material,
B. A step of cutting the cloth-like material into an arbitrary size;
C. Laminating the cut cloth,
D. A step of compressing the laminated cloth-like material after heating, or performing heating and compression at the same time, and molding;
And sequentially through the steps A to D , and
b . The weight of the cloth-like material is measured using a weighing platform for measuring the weight of the laminated cloth-like material, and when the weight of the cloth-like material exceeds an arbitrarily determined weight setting value, the cloth-like material is laminated. The manufacturing method of the fiber board characterized by including the process of conveying the cloth-like thing automatically to the following process.
(2) A. Cutting the cloth-like material into an arbitrary size; In addition to the process of cutting the cloth material into an arbitrary size,
a. Placing the cloth-like material on a flat table, moving the cloth-like material in at least one direction on the table by mechanical equipment, and adjusting the position of the cloth-like material. The manufacturing method of the fiber-type board as described in (1) .
(3) The fiber-based board according to (2), wherein in the step a for adjusting the position of the cloth-like material, the position of the cloth-like material is adjusted by moving the cloth-like material in at least two directions. Manufacturing method .
（２）前記布状物の位置を調整するａの工程において、少なくとも二方向に布状物を移動させ、布状物の位置を調整することを特徴とする前記（１）に記載の繊維系ボードの製造方法。 (2) The fiber system according to (1), wherein in the step a of adjusting the position of the cloth-like material, the position of the cloth-like material is adjusted by moving the cloth-like material in at least two directions. Board manufacturing method.
（４）前記布状物の重量を測定するbの工程における秤量台が、積層された布状物を次工程へ移動させるコンベアの機能を有することを特徴とする前記１〜（３）のいずれかに記載の繊維系ボードの製造方法。 ( 4 ) Any one of (1) to ( 3 ) above, wherein the weighing table in step b for measuring the weight of the cloth-like material has a function of a conveyor for moving the laminated cloth-like material to the next step. The manufacturing method of the fiber-type board of crab.
（５）前記裁断された布状物を、針を有する機械設備によって吊り上げ、次工程に搬送する工程を備えることを特徴とする前記１〜４のいずれかに記載の繊維系ボードの製造方法。 (5) the shredded fabric-like material, lifting by machinery having a needle, method for producing a fiber-based board according to any one of 1-4, characterized in that it comprises the step of conveying to the next step.
（６）前記布状物を吊り上げるための機械設備が、布状物を吊り上げるための針と、吸盤の双方を有することを特徴とする前記（５）に記載の繊維系ボードの製造方法。 ( 6 ) The method for producing a fiber-based board according to ( 5 ) above, wherein the mechanical equipment for lifting the cloth-like object has both a needle for lifting the cloth-like object and a suction cup.
（７）前記布状物を、針を有する機械設備によって吊り上げ、搬送する工程において、搬送前の布状物が複数枚積層されており、前記積層された布状物の最上部の高さを検知する検知部と、前記積層された布状物を載置する台とを用いて、前記積層された布状物が搬送により減少した際に、前記検知部が布状物の減少を検知し、前記台が一定の高さまで布状物を押し上げることを特徴とする前記（５）または（６）のいずれかに記載の繊維系ボードの製造方法。
( 7 ) In the step of lifting and transporting the cloth-like object by a mechanical facility having a needle, a plurality of cloth-like objects before conveyance are laminated, and the height of the uppermost part of the laminated cloth-like substance is set. The detection unit detects a decrease in the cloth-like material when the laminated cloth-like material is reduced by conveyance using a detection unit for detecting and a table on which the laminated cloth-like material is placed. The method for producing a fiber-based board according to any one of ( 5 ) and ( 6 ), wherein the table pushes up the cloth-like material to a certain height.
（８）繊維系ボードを加熱した後、冷却する工程を含むことを特徴とする前記（１）〜（７）いずれかに記載の繊維系ボードの製造方法。 ( 8 ) The method for producing a fiber board according to any one of (1) to ( 7 ), including a step of cooling the fiber board after heating.
（９）前記布状物を加熱する工程において、上下２枚の平板を用いて布状物の圧縮および冷却を行い、あらかじめ決められた布状物の重量設定値と、前記上下２枚の平板の隙間間隔を適宜設定することにより、繊維系ボードの密度と厚みを適宜設定することを特徴とする前記１〜８のいずれかに記載の繊維系ボードの製造方法。 ( 9 ) In the step of heating the cloth-like material, the cloth-like material is compressed and cooled using two upper and lower flat plates, and the predetermined weight setting value of the cloth-like material and the two upper and lower flat plates are 9. The method for producing a fiber board according to any one of 1 to 8 , wherein the density and thickness of the fiber board are appropriately set by appropriately setting the gap interval.
（１０）前記布状物を加熱する工程において、高周波誘導加熱装置を用いて加熱することを特徴とする請求項１〜９のいずれかに記載の繊維系ボードの製造方法。 (10) The method for manufacturing a fiber-based board according to any one of claims 1 to 9 , wherein in the step of heating the cloth-like material, heating is performed using a high-frequency induction heating device.
（１１）繊維系ボードを加熱した後、あるいは冷却した後に任意の大きさに裁断する工程を含むことを特徴とする（８）記載の繊維系ボードの製造方法。 (11) after heating the fiber-based board, or further comprising the step of cutting the desired size after cooling, characterized in (8) the production method of the fiber-based board according.
（１２）繊維系ボードを製造する装置であって、
Ａ．繊維を原料とした目付が１００〜４０００ｇ／ｍ２の範囲内の布状物を製造する手段、
Ｂ．前記布状物を任意の大きさに裁断する手段、
Ｃ．前記裁断された布状物を、積層する手段、
Ｄ．前記積層された布状物を加熱した後、圧縮するか、または加熱と圧縮を同時に行い、
成形する手段、
の、少なくとも上記Ａ〜Ｄの手段を備えてなるとともに、さらに、
ｂ．前記積層された布状物の重量を測定するための秤量台を用いて該布状物の重量を測定する手段、を備えることを特徴とする繊維系ボードの製造装置。
( 12 ) An apparatus for producing a fiber-based board,
A. Means for producing a cloth-like material having a basis weight of 100 to 4000 g / m 2 using fiber as a raw material;
B. Means for cutting the cloth-like material into an arbitrary size;
C. Means for laminating the cut cloth,
D. After heating the laminated fabric, compress or perform heating and compression simultaneously,
Means for molding,
Comprising at least the above-mentioned means A to D , and
b . Said stacked means to measure the weight of the fabric-like material cloth-like material with a weigh pan for weighing the apparatus for manufacturing a fiber-based board, characterized in that it comprises a.
本発明によれば、釘やネジ、あるいはピンなどの突き刺し性やその保持性、および剛性に優れた繊維系ボードを効率的に得ることができる。また、繊維系ボードの密度および厚みを簡易的に調整できることから、釘やネジ、あるいはピンなどの突き刺し性やその保持性、および剛性を繊維系ボードの適用用途に応じて適宜設計することができる。さらにボード製造時の裁断ロス率を低減でき、かつ、一定の密度のボードを安定的に得ることができる。 ADVANTAGE OF THE INVENTION According to this invention, the fiber-type board excellent in the stab property, its retainability, and rigidity, such as a nail, a screw, or a pin, can be obtained efficiently. In addition, since the density and thickness of the fiber board can be easily adjusted, the piercing property of nail, screw, pin, etc., its retainability, and rigidity can be appropriately designed according to the application purpose of the fiber board. . Furthermore, the cutting loss rate at the time of board manufacture can be reduced, and a board with a constant density can be obtained stably.
以下、本発明についてさらに詳細に説明する。 Hereinafter, the present invention will be described in more detail.
まず、本発明の繊維系ボードの製造方法、製造装置は、上述した工程、もしくは手段を採用するものであるが、特に、目付が１００〜４０００ｇ／ｍ２の範囲内の布状物を裁断後、重量を測定するための秤量台を用い、積層された布状物の重量を測定し、次いで圧縮成形することに特徴を有し、これにより、釘やネジ、あるいはピンなどの突き刺し性やその保持性、および剛性に優れた繊維系ボードを効率的に得ることができると同時に、繊維系ボードの密度を簡易的に調整できることから、釘やネジ、あるいはピンなどの突き刺し性やその保持性、および剛性を繊維系ボードの適用用途に応じて適宜設計することができるものである。 First, although the manufacturing method and manufacturing apparatus of the fiber-based board of the present invention employ the above-described steps or means, especially after cutting a cloth-like material having a basis weight in the range of 100 to 4000 g / m 2. , Using a weighing platform for measuring the weight, measuring the weight of the laminated fabric, and then compressing it, thereby providing a piercing property such as a nail, screw, or pin and its A fiber board with excellent retention and rigidity can be efficiently obtained, and at the same time the density of the fiber board can be adjusted easily, so that the piercing ability and retention of nails, screws, pins, etc. And the rigidity can be appropriately designed according to the application of the fiber board.
以下、本発明の繊維系ボードの製造方法、製造装置について、工程順に更に詳細に説明する。 Hereinafter, the manufacturing method and manufacturing apparatus of the fiber board of the present invention will be described in more detail in the order of steps.
「布状物の製造工程、手段」
まず、繊維を原料として、周知の技術を用いて織り物、編み物、あるいは不織布などの布状物を得る。布状物の種類については特に限定はなく、複数種の布状物の併用も可能である。好ましくは、繊維の方向性が少なく、効率的に製造できる不織布を用いることが、繊維の方向性が少なく、かつ、効率的に繊維系ボードが得られるために好ましい。この工程において、布状物の目付、すなわち単位面積あたりの布状物の重量は１００〜４０００ｇ／ｍ２に調整するものである。前記の目付の布状物を適宜積層し、目標とする重量の積層物を得、成形することで繊維系ボードの密度を簡易的に調整でき、かつ、密度バラツキが少なく、安定的に繊維系ボードを製造することができる。布状物の目付が１００ｇ／ｍ２を下回ると、積層する回数が多くなり、生産効率が低下する。一方、布状物の目付が４０００ｇ／ｍ２を超えると繊維系ボードの密度を調整することが困難となる。本発明においては、異なる目付の布状物を複数種用いて繊維系ボードを製造することも可能であり、例えば目付が８００〜４０００ｇ／ｍ２の比較的高目付の布状物を複数枚積層した後、積層物の重量をより高い精度で調整するために、目付が１００〜８００ｇ／ｍ２の低目付の布状物を更に積層する手法も好ましく用いられる。これにより、密度のバラツキの少ない繊維系ボードを効率的に得ることが可能となる。
“Manufacturing process and means of cloth”
First, a fabric-like material such as a woven fabric, a knitted fabric, or a non-woven fabric is obtained using a fiber as a raw material using a known technique. There are no particular limitations on the type of cloth-like material, and a combination of a plurality of types of cloth-like materials is also possible. Preferably, it is preferable to use a non-woven fabric that has a low fiber directivity and can be efficiently manufactured, because the fiber directivity is low and a fiber board can be efficiently obtained. In this step, the basis weight of the cloth-like material, that is, the weight of the cloth-like material per unit area is adjusted to 100 to 4000 g / m 2 . By appropriately laminating the above-mentioned fabric weight with a basis weight, obtaining a laminate with a target weight, and molding it, the density of the fiber board can be easily adjusted, and there is little density variation, and the fiber system is stably A board can be manufactured. When the fabric weight is less than 100 g / m 2 , the number of times of lamination increases, and the production efficiency decreases. On the other hand, when the fabric weight per unit area exceeds 4000 g / m 2 , it is difficult to adjust the density of the fiber board. In the present invention, it is also possible to produce a fiber board using a plurality of types of cloth-like materials having different basis weights. For example, a plurality of cloth-like materials having a relatively high basis weight of 800 to 4000 g / m 2 are laminated. After that, in order to adjust the weight of the laminate with higher accuracy, a method of further laminating a cloth-like material having a basis weight of 100 to 800 g / m 2 is also preferably used. As a result, it is possible to efficiently obtain a fiber-based board with less variation in density.
「布状物の裁断工程、手段」
本発明の布状物は繊維系ボードのサイズに応じて、必要な寸法に裁断される。好ましくは、成形後の繊維系ボードの端部裁断を考慮し、繊維系ボードの＋４ｃｍ程度の大きさに裁断しておくことが好ましい。布状物を裁断する手段については特に限定されないが、より高い生産効率を得るために、周知の回転刃を用いたカッター、あるいは、布状物が製造される生産ライン上で、マシンディレクションと直交するように設置された直線状の刃物を上下に駆動させカットする手段が用いられる。
"Cutting process and means of cloth-like materials"
The cloth-like product of the present invention is cut into necessary dimensions according to the size of the fiber board. It is preferable to cut into a size of about +4 cm of the fiber board in consideration of the end cutting of the fiber board after molding. The means for cutting the cloth is not particularly limited, but in order to obtain higher production efficiency, it is orthogonal to the machine direction on a cutter using a known rotary blade or on the production line where the cloth is manufactured. Means for driving and cutting a linear blade set up and down is used.
「布状物の位置調整工程、手段」
裁断された布状物は平面状の台の上に載せ、機械設備により前記台の上で少なくとも一方向に布状物を移動させ、布状物の位置を調整することができる。布状物を積層する前工程において、布状物を決められた位置に調整し、機械設備を用いて積層することで、積層された布状物の位置の誤差を少なくすることができ、繊維系ボードを裁断する際の裁断ロス率を低減化することが可能となる。
“Position adjustment process and means for cloth-like materials”
The cut cloth can be placed on a flat table, and the position of the cloth can be adjusted by moving the cloth in at least one direction on the table by mechanical equipment. In the previous process of laminating the cloth-like material, the cloth-like material is adjusted to a predetermined position and laminated using mechanical equipment, so that the error in the position of the laminated cloth-like material can be reduced, and the fiber It is possible to reduce the cutting loss rate when cutting the system board.
本工程において好ましくは、２方向、すなわちタテ方向とヨコ方向の双方から布状物を移動させ、位置を調整することが好ましい。これにより、タテおよびヨコ方向の双方の布状物の位置の誤差を少なくでき、裁断ロス率の低減化に大きく寄与できる。布状物を移動させるための手段については特に限定されないが、エアーシリンダーや油圧シリンダーを用いて、この先端に布状物を押し出すためのジグを取り付け、所定の方向に布状物を押し出し、決められた位置に布状物を移動する手段が用いられる。 In this step, it is preferable to adjust the position by moving the cloth-like material from two directions, that is, from both the vertical direction and the horizontal direction. Thereby, the error of the position of the cloth-like material in both the vertical and horizontal directions can be reduced, which can greatly contribute to the reduction of the cutting loss rate. The means for moving the cloth-like material is not particularly limited, but a jig for extruding the cloth-like material is attached to the tip using an air cylinder or a hydraulic cylinder, and the cloth-like material is extruded in a predetermined direction. Means for moving the cloth-like material to the specified position are used.
上述の手段によって位置決めがなされ、次いで積層された布状物の相対的な位置の誤差は±１０ｍｍ以下であることが好ましい。±１０ｍｍ以下の精度で布状物を積層することにより、繊維系ボードの裁断時のロス率低減化に大きく寄与できる。布状物の位置の誤差が±１０ｍｍを超えると、裁断時のロス率が大きくなり、生産性が低下するため好ましくない。 It is preferable that the relative position error of the cloth-like objects that are positioned by the above-described means and then laminated is ± 10 mm or less. By laminating the cloth-like material with an accuracy of ± 10 mm or less, it can greatly contribute to the reduction of the loss rate at the time of cutting the fiber board. If the error in the position of the cloth-like material exceeds ± 10 mm, the loss rate at the time of cutting increases, and the productivity is lowered, which is not preferable.
「布状物の搬送、積層工程、手段」
本発明では、裁断された布状物を針を有する機械設備によって吊り上げ、搬送することが可能である。本発明者らは裁断後の布状物を搬送する手段について鋭意検討した結果、先端に針を具備する機械設備によって布状物を突き刺し、吊り上げて搬送することで、人手を用いずとも自動で布状物を効率的に搬送できることを見出した。布状物はその製造方法や目付によって柔軟性や厚みが異なるが、針を有する機械設備によって突き刺し、搬送することで、複数種の布状物を効率的に搬送することが可能となる。本発明の針を有する機械設備は、好ましくは押し圧によって上下にスライドする金属棒と、前記金属棒の側面に略垂直方向に具備される針とを有し、前記金属棒をエアーシリンダーなどを用いて、搬送する布状物の上面に押し当て、金属棒にかかる押し圧力により、金属棒が上方向に移動し、この移動によって前記針が略水平方向に駆動し、布状物を突き刺し、吊り上げる手段が好ましい。本発明で用いられる針については直径０．５〜１．５ｍｍのものが強度の点から好ましく、長さ５〜４０ｍｍの範囲内で、布状物の厚みに応じて適宜長さを調整できる機構であることが好ましい。また、針の長さを調整することにより、布状物を一度に搬送する枚数を調整することも可能である。例えば厚み８ｍｍの厚みの不織布を一度に２枚搬送する際には針の長さは２５ｍｍ程度に調整することが好ましい。
"Conveying cloth, laminating process, means"
In the present invention, the cut cloth can be lifted and transported by a mechanical facility having a needle. As a result of intensive studies on the means for transporting the cloth-like material after cutting, the present inventors automatically stab the cloth-like material with a mechanical equipment having a needle at the tip, and lift and convey it without using human hands. It has been found that the cloth can be efficiently conveyed. Although the cloth-like material has different flexibility and thickness depending on its manufacturing method and basis weight, a plurality of types of cloth-like materials can be efficiently conveyed by being pierced and conveyed by a mechanical facility having a needle. The mechanical equipment having the needle of the present invention preferably has a metal bar that slides up and down by a pressing force, and a needle that is provided on a side surface of the metal bar in a substantially vertical direction. Using, pressing against the upper surface of the cloth-like material to be conveyed, the metal rod is moved upward by the pressing force applied to the metal rod, the needle is driven in a substantially horizontal direction by this movement, and the cloth-like material is pierced, A lifting means is preferred. As for the needle used in the present invention, a needle having a diameter of 0.5 to 1.5 mm is preferable from the viewpoint of strength, and a mechanism capable of appropriately adjusting the length within a range of 5 to 40 mm in length according to the thickness of the cloth-like material. It is preferable that Moreover, it is also possible to adjust the number of sheets conveyed at a time by adjusting the length of the needle. For example, when conveying two nonwoven fabrics having a thickness of 8 mm at a time, the length of the needle is preferably adjusted to about 25 mm.
本発明の布状物を吊り上げるための機械設備は、針と吸盤の双方を有することが好ましい。布状物の通気性が高い場合は、前記針を用いて吊り上げる手段が用いられるが、通気性が低い布状物を搬送する場合や、必要に応じて離型シートなどのシート状物やフィルム状物を搬送する際には、前記の吸盤を活用し、搬送することができる。上述の吸盤は機械設備の先端に取り付けられるが、好ましくはブロワーなどの吸気装置を用いて、吸引し、吸盤を布状物やシート状物に押し当てると同時に吸引し、シート状物を吸い付け、搬送することが好ましい。 The mechanical equipment for lifting the cloth-like object of the present invention preferably has both a needle and a suction cup. When the air permeability of the cloth-like material is high, a means for lifting using the needle is used. However, when a cloth-like material having low air permeability is transported, or a sheet-like material such as a release sheet or a film as necessary. When transporting the object, the suction cup can be used for transportation. The above suction cup is attached to the tip of the mechanical equipment, but it is preferably sucked using an air suction device such as a blower, and the suction cup is pressed against the cloth or sheet and sucked to suck the sheet. It is preferable to carry.
上述の搬送工程において、針を有する機械設備が布状物の表面部まで移動し、布状物を保持する手段が用いられるが、この場合、布状物が減少するに従い布状物の上面と、針を有する機械設備の間の距離、すなわち針を有する機械設備の移動距離が長くなり、搬送効率が低下する。この課題を解決するために、好ましくは積層された布状物の最上部の高さを検知する検知部と、前記積層された布状物を上載する台とを用いて、前記積層された布状物が搬送により減少した際に、前記検知部が布状物の減少を検知し、前記台が一定の高さまで、積層された布状物を押し上げることが好ましい。これにより、布状物が減少したとしても、機械設備の移動距離は変化せず、搬送効率が低下しないため好ましい。積層された台を押し上げるために好ましくは、油圧シリンダーを用いて押し上げる設備が用いられる。また、布状物の減少を検知するための検知装置には、赤外線などの光電検知装置を用いることができる。 In the transporting process described above, the mechanical equipment having the needle moves to the surface of the cloth-like material, and means for holding the cloth-like material is used. In this case, as the cloth-like material decreases, The distance between the mechanical equipment having the needle, that is, the moving distance of the mechanical equipment having the needle is increased, and the conveyance efficiency is lowered. In order to solve this problem, preferably, the laminated fabric is detected by using a detection unit that detects the height of the uppermost portion of the laminated fabric and a table on which the laminated fabric is mounted. It is preferable that the detection unit detects a decrease in the cloth-like material when the material is reduced by conveyance, and the platform pushes up the laminated cloth-like material to a certain height. Thereby, even if the cloth-like material is reduced, the moving distance of the mechanical equipment does not change, and the conveyance efficiency does not decrease, which is preferable. In order to push up the stacked bases, an equipment that pushes up using a hydraulic cylinder is preferably used. Moreover, a photoelectric detection device such as infrared rays can be used as a detection device for detecting a decrease in the cloth-like material.
上述の搬送設備を用いることにより、人手を用いずとも簡易的に布状物を次工程へ搬送し、さらには積層することができる。 By using the above-described transport facility, the cloth-like material can be transported to the next process easily and further laminated without using human hands.
「布状物の重量測定工程、手段」
本発明の目的である繊維系ボードの密度を適宜設計し、かつ、一定の密度のボードを安定的に得るためには、積層された布状物を、重量を測定するための秤量台の上に積層し、重量を測定することが重要である。重量を測定する手段については、布状物の重量を電流に変換するための周知のロードセルを具備した秤量台を用いることができる。
“Weight measurement process and means for cloth-like materials”
In order to appropriately design the density of the fiber-based board, which is the object of the present invention, and to stably obtain a board having a constant density, the laminated cloth is placed on a weighing table for measuring the weight. It is important to laminate and measure the weight. As a means for measuring the weight, a weighing table equipped with a known load cell for converting the weight of the cloth-like material into an electric current can be used.
さらに効率的に繊維系ボードを生産するために、上述の秤量台は布状物を次工程へ移動させるコンベアの機能を具備することが好ましい。重量測定機能と、搬送機能の双方を具備することにより、人手を用いず効率的に布状物の重量を測定し、次工程へ搬送することができる。 In order to produce a fiber board more efficiently, it is preferable that the above-mentioned weighing platform has a function of a conveyor for moving the cloth-like material to the next process. By providing both the weight measuring function and the transport function, the weight of the cloth-like material can be efficiently measured without using human hands and transported to the next process.
上述の秤量台の重量測定精度は、±５０ｇ以下であることが一定の密度の繊維系ボードを安定的にあるために好ましい。重量測定精度が±５０ｇを超えると繊維系ボードの密度バラツキが大きくなり好ましくない。 The weight measurement accuracy of the weighing platform is preferably ± 50 g or less in order to stably provide a fiber board with a constant density. If the weight measurement accuracy exceeds ± 50 g, the density variation of the fiber board increases, which is not preferable.
また、上述の秤量台は布状物の重量を積層毎に測定し、あらかじめ任意に決められた重量設定値を超えた際に、積層された布状物を自動で次工程に搬送することが好ましい。前記重量設定値を繊維系ボードの密度に応じて適宜設定することで、簡易的に繊維系ボードの密度を調整することが可能となる。また、重量設定値を超えた際に自動でこれを検知し、次工程へ搬送できることで、人手を用いずとも効率的に生産することが可能となる。 In addition, the weighing platform described above measures the weight of the cloth-like material for each lamination, and automatically conveys the laminated cloth-like material to the next process when a predetermined weight set value is exceeded. preferable. By appropriately setting the weight setting value according to the density of the fiber board, the density of the fiber board can be easily adjusted. In addition, when the weight set value is exceeded, this can be automatically detected and transported to the next process, so that it is possible to produce efficiently without manual operation.
「加熱、冷却工程、手段」
本発明の繊維系ボードは上述の布状物を加熱した後、圧縮するか、または加熱と圧縮を同時に行い、成形し得られる。好ましくは加熱と圧縮を同時に行うことが生産性を向上させる点で好ましい。布状物を加熱圧縮する場合、好ましくは布状物には熱可塑樹脂を付着または担持させ、熱可塑性樹脂を介して圧縮成形される。また、布状物が熱可塑性の繊維からなるものである場合、加熱圧縮成型時に繊維が熱溶融し、溶融した繊維を介して圧縮成形される。
"Heating, cooling process, means"
The fiber board of the present invention can be molded by heating the above-mentioned cloth-like material and then compressing or simultaneously heating and compressing. Preferably, performing heating and compression simultaneously is preferable in terms of improving productivity. When the cloth-like product is heated and compressed, a thermoplastic resin is preferably attached or supported on the cloth-like material, and compression-molded via the thermoplastic resin. When the cloth-like material is made of thermoplastic fibers, the fibers are melted by heat at the time of heat compression molding, and compression molding is performed via the melted fibers.
また、本発明では布状物を加熱した後、空冷あるいは冷却プレス装置を用いることにより、冷却することが好ましい。加熱後の成形物を十分に冷却することにより、ボードを裁断する工程において、裁断機の刃物の昇温を防止することができ、生産効率を高めることができる。特に、熱可塑性のプラスチックを原料として用いた繊維系ボードは、冷却せず裁断した場合に、溶融した切り屑が刃物へ付着するなどの問題が発生する場合があるため、特にその効果を発揮する。 Moreover, in this invention, after heating a cloth-like thing, it is preferable to cool by using air cooling or a cooling press apparatus. By sufficiently cooling the molded product after heating, in the step of cutting the board, the temperature rise of the cutter of the cutting machine can be prevented, and the production efficiency can be increased. In particular, fiber-based boards using thermoplastic plastics as raw materials are particularly effective because they may cause problems such as the adhesion of molten chips to the blade when cut without cooling. .
布状物を加熱する工程または冷却する工程においては、上下２枚の平板を用いて布状物の加熱圧縮および／または冷却を行い、前記布状物の重量設定値と、前記上下２枚の平板の隙間間隔を適宜設定することにより、繊維系ボードの密度と厚みを適宜設定することができる。一定の重量に調整された布状物の積層体を、特定の厚みに調整し繊維系ボードを製作することで、厚みと密度の調整を行うができる。特に好ましくは、加熱圧縮、および冷却工程の双方において、２枚の平板の隙間間隔を調整し、ボードの厚みを調整することが、優れた厚み精度の繊維系ボードを得るために好ましい。 In the step of heating or cooling the cloth-like material, the cloth-like material is heated and compressed and / or cooled using two upper and lower flat plates, and the weight set value of the cloth-like material and the upper and lower two sheets are set. By appropriately setting the gap interval between the flat plates, the density and thickness of the fiber board can be appropriately set. Thickness and density can be adjusted by adjusting the thickness of the cloth-like laminate adjusted to a constant weight to a specific thickness to produce a fiber board. It is particularly preferable to adjust the gap distance between the two flat plates and adjust the thickness of the board in both the heat compression and cooling steps in order to obtain a fiber-based board with excellent thickness accuracy.
布状物を加熱する手段については特に限定されないが、好ましくは高周波誘導加熱装置を用いて加熱することが優れた生産性を得るために好ましい。周知の加熱手段として上下２枚の平板を加熱し、この平板により布状物を圧縮することで、熱伝導により徐々に内部まで加熱する手法も用いられるが、厚みが１０ｍｍを超える比較的厚い繊維系ボードを得るためには、上述の高周波誘導加熱装置を用いて、布状物の分子運動を活発化、発熱させ、加熱することが好ましい。特に、厚みが比較的厚い繊維系ボードを成形する際に優れた生産性を得ることができ、その機能を十分に発揮する。また、布状物の積層体の内部まで均一に加熱することが可能となるため、繊維系ボードの剛性や、針やネジなどの突き刺し性、その保持性などの特性において、均一な特性が得られるため好ましい。 The means for heating the cloth-like material is not particularly limited, but it is preferable to use a high-frequency induction heating device to obtain excellent productivity. As a well-known heating means, a method of heating the upper and lower two flat plates and compressing the cloth-like material by the flat plates to gradually heat them to the inside by heat conduction is used, but a relatively thick fiber having a thickness exceeding 10 mm In order to obtain a system board, it is preferable to activate and heat the molecular motion of the cloth-like material by using the above-described high-frequency induction heating apparatus. In particular, excellent productivity can be obtained when a relatively thick fiber-based board is molded, and the function is sufficiently exhibited. In addition, since it is possible to uniformly heat the inside of the laminate of cloth-like materials, uniform characteristics can be obtained with respect to the characteristics of the fiber board, such as the rigidity of the fiber-based board, the piercing property of needles and screws, and the retention property thereof. Therefore, it is preferable.
「繊維系ボードの裁断工程、手段」
本発明の繊維系ボードは周知のチップソーなどを用いて、適宜、必要寸法に裁断される。
"Fibre-based board cutting process and means"
The fiber board of the present invention is appropriately cut into necessary dimensions using a known chip saw or the like.
上述の各工程において、全ての工程を機械設備により実施することにより、少ない作業人員で効率的に繊維系ボードを製造することができる。 In each process described above, the fiber-based board can be efficiently manufactured with a small number of workers by performing all the processes with mechanical equipment.
本発明の製造方法、製造装置により得られた繊維系ボードは、密度や厚みを簡易的に調整することができるため、建材やインテリア資材、遊技機部材、自動車資材、農業資材などの幅広い分野で好適に使用される。 Since the fiber board obtained by the manufacturing method and manufacturing apparatus of the present invention can easily adjust the density and thickness, it can be used in a wide range of fields such as building materials, interior materials, gaming machine members, automobile materials, agricultural materials, etc. Preferably used.
以下に、実施例によって本発明をさらに具体的に説明するが、これらは本発明を限定するものではない。 The present invention will be described more specifically with reference to the following examples. However, these examples do not limit the present invention.
実施例１
「布状物の製造工程」
ケナフ靭皮繊維とポリ乳酸繊維をローラーカードを用いて開繊、混合させ、次いでニードルパンチングにより繊維を絡合させ、目付７００ｇ／ｍ２の不織布を得た。
Example 1
"Manufacturing process of cloth-like material"
Kenaf bast fibers and polylactic acid fibers were opened and mixed using a roller card, and then the fibers were entangled by needle punching to obtain a nonwoven fabric having a basis weight of 700 g / m 2 .
「布状物の裁断工程」
得られた不織布をローターカッターにより１０００ｍｍ角に裁断した。次いで、前記不織布を１００枚積層し、不織布の積層物を得た。
"Cutting process of cloth-like material"
The obtained nonwoven fabric was cut into a 1000 mm square by a rotor cutter. Next, 100 nonwoven fabrics were laminated to obtain a nonwoven fabric laminate.
「布状物の位置調整工程」
この不織布の積層物を油圧電動式で上下に駆動する台の上に上載し、直径１．０ｍｍ、長さ２０ｍｍの針を有する機械設備により１枚吊り上げ、平面状の台の上に搬送、上載した。次いで、前記不織布を電動エアーシリンダーにより、タテ、ヨコ双方から１００ｍｍ押し出し、位置を調整した。なお、前述の油圧式駆動台は、赤外線式光電管により不織布の積層物の高さの減少を検知し、８ｍｍ上昇した。
“Position adjustment process for cloth-like materials”
This non-woven fabric laminate is placed on a hydraulically driven table that is driven up and down, lifted by a mechanical facility having a needle with a diameter of 1.0 mm and a length of 20 mm, transported onto a flat table, and mounted. did. Next, the nonwoven fabric was extruded 100 mm from both the vertical and horizontal sides with an electric air cylinder to adjust the position. In addition, the above-mentioned hydraulic drive stand detected a decrease in the height of the non-woven fabric laminate by the infrared phototube and rose 8 mm.
「布状物の搬送、積層、重量測定工程」
次いで、上述の針を有する機械設備を用いて再度不織布を１枚吊り下げ、不織布の重量を測定するためのロードセルと布状物を搬送するためのベルトコンベアを具備する秤量台（秤量精度±１０ｇ）の上に搬送、上載した。前記秤量台により、不織布の重量を測定し、不織布の重量が７３０ｇであることを確認した。なお、この際、重量測定機は積層体の積算重量が７０００ｇを超えた時点で、自動的に次工程へ搬送するよう設定した。上述の布状物の位置調整工程から不織布の重量を測定する工程までを１０回繰り返し、積算重量７５２０ｇの不織布積層物を得、重量測定機が７０００ｇを超えたことを自動で検知し、ベルトコンベアにより次工程である高周波誘導加熱プレス装置へ搬送した。なお、得られた不織布積層体の位置の相対的誤差は±４ｍｍであった。
“Conveying, laminating, and measuring the weight of cloth”
Next, a nonwoven fabric is suspended again using the above-mentioned mechanical equipment having a needle, and a weighing table (weighing accuracy ± 10 g) including a load cell for measuring the weight of the nonwoven fabric and a belt conveyor for transporting the cloth-like material is used. ) Was transported and mounted on top. The weight of the nonwoven fabric was measured with the weighing platform, and it was confirmed that the weight of the nonwoven fabric was 730 g. At this time, the weight measuring machine was set to automatically transport to the next process when the accumulated weight of the laminate exceeded 7000 g. The process from the above-mentioned position adjustment process of the cloth-like material to the process of measuring the weight of the nonwoven fabric is repeated 10 times to obtain a nonwoven fabric laminate having an accumulated weight of 7520 g, automatically detecting that the weight measuring machine exceeds 7000 g, and a belt conveyor Then, it was conveyed to a high-frequency induction heating press apparatus which is the next process. In addition, the relative error of the position of the obtained nonwoven fabric laminated body was +/- 4mm.
「加熱、冷却工程」
次いで高周波誘導加熱プレス装置（加圧時プレス板間隔１５．８ｍｍ）を用いて、不織布の積層体を加圧すると同時に、高周波により不織布積層体の温度が２００℃となるまで加熱した。次いで、加熱された不織布積層体をベルトコンベアを用いて水冷式冷却プレス装置（加圧時プレス板間隔１５．０ｍｍ）に搬送し、冷却した。
"Heating and cooling process"
Next, the nonwoven fabric laminate was pressurized using a high-frequency induction heating press apparatus (press plate interval at press time of 15.8 mm), and at the same time, the nonwoven fabric laminate was heated by high frequency until the temperature of the nonwoven fabric laminate reached 200 ° C. Next, the heated nonwoven fabric laminate was transported to a water-cooled cooling press apparatus (press plate interval 15.0 mm during pressurization) using a belt conveyor and cooled.
「繊維系ボードの裁断工程」
得られた繊維系ボードをベルトコンベアにより搬送し、回転式チップソーを用いてタテ、ヨコ双方とも裁断し、９５０ｍｍ角の繊維系ボードを得た。得られた繊維系ボードの厚みは１５．０ｍｍ±０．１ｍｍ、密度０．４８ｇ／ｃｍ３であった。
“Cutting process of fiber board”
The obtained fiber board was conveyed by a belt conveyor, and both vertical and horizontal were cut using a rotary chip saw to obtain a 950 mm square fiber board. The thickness of the obtained fiber-based board was 15.0 mm ± 0.1 mm and the density was 0.48 g / cm 3 .
実施例２
実施例１の布状物の搬送、積層、重量測定工程における、重量測定機により測定される積層体の積算重量を、５０００ｇを超えた時点で、自動的に次工程へ搬送するよう設定し、他の工程は実施例１と同一の方法にて繊維系ボードを製造した。不織布は７枚積層された時点で、積算重量５０９０ｇとなり、自動で次工程へ搬送された。得られた繊維系ボードの厚みは１５．０ｍｍ±０．１ｍｍ、密度は０．３４ｇ／ｃｍ３であった。
Example 2
In the transporting, laminating, and weight measuring steps of the cloth-like material of Example 1, when the cumulative weight of the laminate measured by the weight measuring machine exceeds 5000 g, it is set to be automatically transported to the next step, In other processes, a fiber board was produced in the same manner as in Example 1. When 7 sheets of non-woven fabric were laminated, the accumulated weight reached 5090 g and was automatically transferred to the next process. The obtained fiber board had a thickness of 15.0 mm ± 0.1 mm and a density of 0.34 g / cm 3 .
実施例３
実施例１の加熱、冷却工程における、高周波誘導加熱プレス装置のプレス板間隔を１０．５ｍｍ、冷却プレス装置のプレス板間隔を１０．０ｍｍに変更し、他の工程は実施例１と同一の方法にて繊維系ボードを製造した。厚みは１０．０ｍｍ±０．１ｍｍ、密度は０．７４ｇ／ｃｍ３であった。
Example 3
In the heating and cooling process of Example 1, the press plate interval of the high frequency induction heating press apparatus is changed to 10.5 mm, and the press plate interval of the cooling press apparatus is changed to 10.0 mm, and the other steps are the same as in Example 1. Produced a fiber-based board. The thickness was 10.0 mm ± 0.1 mm, and the density was 0.74 g / cm 3 .
このようにして得られた繊維系ボードは密度と厚みが異なるものであり、重量測定機により測定される積層体の積算重量、又は、高周波誘導加熱プレス装置のプレス板間隔、および冷却プレス装置のプレス板間隔を設定することにより、人手を要せず、密度、または厚みの異なる繊維系ボードを効率的に得ることができた。 The fiber-based boards thus obtained have different densities and thicknesses. The accumulated weight of the laminate measured by a weight measuring device, or the press plate interval of the high frequency induction heating press device, and the cooling press device By setting the press plate interval, it was possible to efficiently obtain fiber boards having different densities or thicknesses without requiring manual labor.
Claims (12)
Ａ．繊維を原料とした目付が１００〜４０００ｇ／ｍ２の範囲内の布状物を製造する工程、
Ｂ．前記布状物を任意の大きさに裁断する工程、
Ｃ．前記裁断された布状物を、積層する工程、
Ｄ．前記積層された布状物を加熱した後、圧縮するか、または加熱と圧縮を同時に行い、成形する工程、
の、少なくとも上記Ａ〜Ｄの工程を順次経てなるとともに、さらに、
ｂ．積層された布状物の重量を測定するための秤量台を用いて該布状物の重量を測定し、布状物の重量が任意に決められた重量設定値を超えた際に、積層された布状物を自動で次工程へ搬送する工程
を含むことを特徴とする繊維系ボードの製造方法。 A method of manufacturing a fiber board,
A. A step of producing a cloth-like material having a basis weight of 100 to 4000 g / m 2 using fiber as a raw material,
B. A step of cutting the cloth-like material into an arbitrary size;
C. Laminating the cut cloth,
D. A step of compressing the laminated cloth-like material after heating, or performing heating and compression at the same time, and molding;
And sequentially through the steps A to D , and
b . The weight of the cloth-like material is measured using a weighing platform for measuring the weight of the laminated cloth-like material, and when the weight of the cloth-like material exceeds an arbitrarily determined weight setting value, the cloth-like material is laminated. The manufacturing method of the fiber board characterized by including the process of conveying the cloth-like thing automatically to the following process.
ａ．布状物を平面状の台の上に載置し、機械設備により前記台の上で少なくとも一方向に前記布状物を移動させ、前記布状物の位置を調整する工程を含むことを特徴とする請求項１に記載の繊維系ボードの製造方法。a. Placing the cloth-like material on a flat table, moving the cloth-like material in at least one direction on the table by mechanical equipment, and adjusting the position of the cloth-like material. The manufacturing method of the fiber-type board of Claim 1.
繊維系ボードを製造する装置であって、
Ａ．繊維を原料とした目付が１００〜４０００ｇ／ｍ２の範囲内の布状物を製造する手段、
Ｂ．前記布状物を任意の大きさに裁断する手段、
Ｃ．前記裁断された布状物を、積層する手段、
Ｄ．前記積層された布状物を加熱した後、圧縮するか、または加熱と圧縮を同時に行い、
成形する手段、
の、少なくとも上記Ａ〜Ｄの手段を備えてなるとともに、さらに、
ｂ．前記積層された布状物の重量を測定するための秤量台を用いて該布状物の重量を測定する手段、を備えることを特徴とする繊維系ボードの製造装置。
An apparatus for producing a fiber board,
A. Means for producing a cloth-like material having a basis weight of 100 to 4000 g / m 2 using fiber as a raw material;
B. Means for cutting the cloth-like material into an arbitrary size;
C. Means for laminating the cut cloth,
D. After heating the laminated fabric, compress or perform heating and compression simultaneously,
Means for molding,
Comprising at least the above-mentioned means A to D , and
b . Said stacked means to measure the weight of the fabric-like material cloth-like material with a weigh pan for weighing the apparatus for manufacturing a fiber-based board, characterized in that it comprises a.
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| JP2005156899A JP4661368B2 (en) | 2005-05-30 | 2005-05-30 | Method and apparatus for manufacturing fiber board |
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| JP2005156899A JP4661368B2 (en) | 2005-05-30 | 2005-05-30 | Method and apparatus for manufacturing fiber board |
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| JP2006327132A5 JP2006327132A5 (en) | 2008-06-26 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH037139U (en) * | 1989-06-09 | 1991-01-23 | ||
| JP2001246606A (en) * | 2000-03-07 | 2001-09-11 | Nichiha Corp | Wood molding and its manufacturing method |
| JP2004130796A (en) * | 2002-09-18 | 2004-04-30 | Araco Corp | Fibrous board and its manufacturing method |
| JP2005120511A (en) * | 2003-10-16 | 2005-05-12 | Toray Ind Inc | Textile structure and method for producing the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5443638B2 (en) * | 1972-08-23 | 1979-12-21 | ||
| JPS62135307A (en) * | 1985-12-09 | 1987-06-18 | Toyota Motor Corp | Manufacture of wooden series molded body |
| JPH0236371B2 (en) * | 1986-08-13 | 1990-08-16 | Kawasaki Yuko Kk | SMCYAFUSHOKUFUTONOSEIKEIZAIRYONOPURESUTONYUSOCHI |
| JPH10235665A (en) * | 1997-02-24 | 1998-09-08 | Kanegafuchi Chem Ind Co Ltd | Platelike form and molded form and their manufacture |
| JPH10273259A (en) * | 1997-03-28 | 1998-10-13 | Ikeda Bussan Co Ltd | Cloth conveying device |
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- 2005-05-30 JP JP2005156899A patent/JP4661368B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH037139U (en) * | 1989-06-09 | 1991-01-23 | ||
| JP2001246606A (en) * | 2000-03-07 | 2001-09-11 | Nichiha Corp | Wood molding and its manufacturing method |
| JP2004130796A (en) * | 2002-09-18 | 2004-04-30 | Araco Corp | Fibrous board and its manufacturing method |
| JP2005120511A (en) * | 2003-10-16 | 2005-05-12 | Toray Ind Inc | Textile structure and method for producing the same |
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