JP2002115158A - Method for forming nonwoven fabric - Google Patents
Method for forming nonwoven fabricInfo
- Publication number
- JP2002115158A JP2002115158A JP2000308200A JP2000308200A JP2002115158A JP 2002115158 A JP2002115158 A JP 2002115158A JP 2000308200 A JP2000308200 A JP 2000308200A JP 2000308200 A JP2000308200 A JP 2000308200A JP 2002115158 A JP2002115158 A JP 2002115158A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- activated carbon
- fiber
- spinning nozzle
- functional member
- 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
Landscapes
- Nonwoven Fabrics (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、紡糸ノズルから紡
出された半溶融状態の繊維を基材に積層して不織布を形
成する不織布の形成方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a nonwoven fabric by laminating semi-molten fibers spun from a spinning nozzle onto a substrate to form a nonwoven fabric.
【０００２】[0002]
【従来の技術】不織布の製造では、紡糸ノズルから紡出
された半溶融状態の繊維をコンベヤ等のスクリーンで受
け、そのスクリーン上に繊維を積層して不織布を形成す
る方法が一般的に使用されている。このような不織布は
フィルタ等の濾材として広い範囲で使用されており、最
近ではその不織布に活性炭等を接着して脱臭等の機能を
付加したものも製造されている。不織布に活性炭等を接
着する技術が特開平５−１３１１３６号公報に開示され
ている。この技術は、不織布を製造した後、その不織布
の表面に活性炭粒子を均等に散布し、この状態で不織布
等を加熱するとともに不織布の裏面から活性炭粒子に吸
引力を付加して、不織布の繊維と活性炭粒子とを接着さ
せものである。2. Description of the Related Art In the production of nonwoven fabrics, a method of receiving semi-molten fibers spun from a spinning nozzle by a screen such as a conveyor and laminating the fibers on the screen to form a nonwoven fabric is generally used. ing. Such a nonwoven fabric is used in a wide range as a filter material such as a filter, and recently, a nonwoven fabric having a function of deodorizing by bonding activated carbon or the like to the nonwoven fabric has also been manufactured. A technique for adhering activated carbon or the like to a nonwoven fabric is disclosed in JP-A-5-131136. In this technology, after manufacturing a nonwoven fabric, activated carbon particles are evenly sprayed on the surface of the nonwoven fabric, and in this state, the nonwoven fabric and the like are heated and the suction force is applied to the activated carbon particles from the back surface of the nonwoven fabric. Activated carbon particles are bonded together.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記した活性
炭粒子の接着方法では、活性炭粒子を不織布の表面に均
等に散布させる工程と不織布を加熱して活性炭粒子と融
着させる工程とが必要であり、さらにその工程を実施す
るための設備も必要となる。このため、活性炭粒子が接
着された不織布の製造コストが高くなるという問題があ
る。本発明は、上記問題点に鑑みてなされたものであ
り、活性炭粒子（機能部材）の散布工程、不織布の加熱
工程を省略できるようにして機能部材を有する不織布の
製造コストを低下させることを目的とする。However, the method of bonding activated carbon particles described above requires a step of uniformly dispersing the activated carbon particles on the surface of the nonwoven fabric and a step of heating the nonwoven fabric to fuse the activated carbon particles with the activated carbon particles. In addition, equipment for performing the process is required. For this reason, there is a problem that the manufacturing cost of the nonwoven fabric to which the activated carbon particles are bonded increases. The present invention has been made in view of the above problems, and has as its object to reduce the manufacturing cost of a nonwoven fabric having a functional member by eliminating the step of spraying activated carbon particles (functional member) and the step of heating the nonwoven fabric. And
【０００４】[0004]
【課題を解決するための手段】上記した課題は、各請求
項の発明によって解決される。請求項１の発明は、紡糸
ノズルから紡出された半溶融状態の繊維を基材に積層し
て不織布を形成する不織布の形成方法において、前記紡
糸ノズルから紡出された繊維が前記基材に到達する前
に、その繊維に粒状の機能部材を接触させることを特徴
とする。The above-mentioned objects are attained by the present invention. The invention according to claim 1 is a method for forming a nonwoven fabric by laminating fibers in a semi-molten state spun from a spinning nozzle on a base material to form a nonwoven fabric, wherein the fibers spun from the spinning nozzle are applied to the base material. Before reaching, the granular functional member is brought into contact with the fiber.
【０００５】本発明によると、紡糸ノズルから紡出され
た半溶融状態の繊維に粒状の機能部材を接触させるた
め、その粒状の機能部材は半溶融状態の繊維に包囲され
て固定され、あるいは繊維の溶融部分に溶着して固定さ
れる。このため、繊維と機能部材とが基材に積層された
段階で機能部材を有する不織布が形成される。したがっ
て、不織布の成形後に機能部材の散布や不織布の加熱等
を行う必要がなく、機能部材を有する不織布の製造コス
トを低減させることができる。ここで、機能部材とは、
燃料蒸気の吸着機能を有する部材、吸湿機能を有する部
材、脱臭機能を有する部材等、種々の部材を含むものと
する。According to the present invention, since the granular functional member is brought into contact with the semi-molten fiber spun from the spinning nozzle, the granular functional member is surrounded and fixed by the semi-molten fiber. Is welded and fixed to the molten portion of. For this reason, at the stage where the fibers and the functional member are laminated on the base material, a nonwoven fabric having the functional member is formed. Therefore, there is no need to spray the functional member, heat the nonwoven fabric, or the like after the formation of the nonwoven fabric, and it is possible to reduce the manufacturing cost of the nonwoven fabric having the functional member. Here, the functional member is
Various members such as a member having a function of adsorbing fuel vapor, a member having a moisture absorbing function, and a member having a deodorizing function are included.
【０００６】また、請求項２のように、半溶融状態の繊
維を気体の圧力で機能部材に押付けるようにすれば、不
織布に対し機能部材をより強固に接着することができ
る。これによって、不織布からの機能部材の脱落を抑制
できる。また、請求項３のように、基材として型の成形
面を使用し、その成形面上に繊維層を積層すれば、機能
部材を有する不織布を所定の立体形状に成形することが
できる。Further, if the fibers in the semi-molten state are pressed against the functional member by gas pressure, the functional member can be more firmly adhered to the nonwoven fabric. This can prevent the functional member from falling off the nonwoven fabric. Further, if a molding surface of a mold is used as a base material and a fiber layer is laminated on the molding surface, a nonwoven fabric having a functional member can be molded into a predetermined three-dimensional shape.
【０００７】また、請求項４のように、紡糸ノズルと基
材とを繊維の紡出方向に対してほぼ直角に相対移動させ
れば、基材の位置に連続して機能部材を有する不織布を
形成することができる。また、請求項５のように、紡糸
ノズルから紡出された複数の繊維のうちで基材の移動方
向において上流側あるいは下流側に位置する繊維に機能
部材を接触させ、その基材上に機能部材を有する繊維の
層と機能部材を有しない繊維の層とを重ねて積層するこ
とができる。これによって、一台の紡糸ノズルで二層構
造の不織布を形成することができる。Further, by moving the spinning nozzle and the base relative to each other substantially at right angles to the fiber spinning direction, a non-woven fabric having a functional member continuously at the position of the base is provided. Can be formed. Further, the functional member is brought into contact with fibers located upstream or downstream in the moving direction of the base material among the plurality of fibers spun from the spinning nozzle as described in claim 5, and the functional material is provided on the base material. The fiber layer having the member and the fiber layer having no functional member can be stacked one upon another. Thereby, a nonwoven fabric having a two-layer structure can be formed with one spinning nozzle.
【０００８】[0008]
【発明の実施の形態】［実施形態１］以下、図１、図２
に基づいて本発明の実施形態１に係る不織布の形成方法
について説明する。本実施の形態は、活性炭等の機能部
材を有する不織布を製造する方法に関するものであり、
図１（Ａ）にその不織布の製造工程を表す模式図、図１
（Ｂ）に不織布の断面を表す模式図が示されている。本
実施形態に係る不織布１は、図１（Ｂ）に示すように、
熱可塑性樹脂の繊維１ｓにより形成された繊維層の内部
に粒状活性炭３がほぼ均等に配置されており、それらの
粒状活性炭３が繊維１ｓに接着されている。このよう
に、不織布１の内部に粒状活性炭３が配置されているた
め、この不織布１がフィルタ等に使用された場合に粒状
活性炭３によって燃料蒸気の吸着等が図られる。なお、
図１の模式図では、粒状活性炭３を識別し易いように角
形に記載したが、実際の粒状活性炭３は角形に限定され
ない。[Embodiment 1] Hereinafter, FIGS. 1 and 2
The method for forming the nonwoven fabric according to the first embodiment of the present invention will be described based on FIG. This embodiment relates to a method for manufacturing a nonwoven fabric having a functional member such as activated carbon,
FIG. 1 (A) is a schematic view showing a manufacturing process of the nonwoven fabric, and FIG.
(B) shows a schematic diagram illustrating a cross section of the nonwoven fabric. The nonwoven fabric 1 according to the present embodiment is, as shown in FIG.
The granular activated carbons 3 are arranged substantially uniformly inside the fiber layer formed by the thermoplastic resin fibers 1s, and the granular activated carbons 3 are bonded to the fibers 1s. As described above, since the granular activated carbon 3 is disposed inside the nonwoven fabric 1, when the nonwoven fabric 1 is used for a filter or the like, adsorption of fuel vapor or the like is achieved by the granular activated carbon 3. In addition,
In the schematic diagram of FIG. 1, the granular activated carbon 3 is described in a square shape so as to be easily identified, but the actual granular activated carbon 3 is not limited to a square shape.
【０００９】次に、図１（Ａ）に基づいて不織布１の製
造設備１０及びその製造設備１０を使用した不織布１の
形成方法について説明する。不織布１の製造設備１０
は、Ｙ方向に延びるコンベヤ１１を備えており、そのコ
ンベヤ１１にベルト状の基布１１ｎが水平に装着されて
いる。基布１１ｎは後記する第一紡糸ノズル１４から紡
出された半溶融状態の繊維１ｓを受ける通気性のあるス
テンレスメッシュであり、コンベヤ１１が駆動されるこ
とにより積層された繊維１ｓをＹ方向に搬送する。即
ち、基布１１ｎが本発明の基材に相当する。なお、基材
は通気性のないものでも良い。Next, a production facility 10 for the nonwoven fabric 1 and a method for forming the nonwoven fabric 1 using the production facility 10 will be described with reference to FIG. Manufacturing equipment 10 for nonwoven fabric 1
Has a conveyor 11 extending in the Y direction, and a belt-like base cloth 11n is horizontally mounted on the conveyor 11. The base fabric 11n is a breathable stainless steel mesh that receives the semi-molten fiber 1s spun from the first spinning nozzle 14 described later, and the conveyor 11 drives the laminated fiber 1s in the Y direction. Transport. That is, the base cloth 11n corresponds to the base material of the present invention. Note that the substrate may not have air permeability.
【００１０】コンベヤ１１の基布１１ｎの上方にはその
基布１１ｎから一定の高さ位置に第一紡糸ノズル１４が
下向きに設置されている。第一紡糸ノズル１４は、例え
ばメルトブロー法を利用した紡糸ノズルであり、中央の
樹脂噴射口１４ｂから噴射された溶融樹脂に対して熱風
噴出口１４ａから熱風を吹付けて繊維１ｓを紡出する。
第一紡糸ノズル１４から紡出された繊維１ｓは熱風によ
り吹き飛ばされ、半溶融状態で基布１１ｎに積層され
る。そして、繊維１ｓが互いに接触することにより接触
点で融着し、それらの繊維１ｓの層が不織布１となる。Above the base cloth 11n of the conveyor 11, a first spinning nozzle 14 is installed downward at a fixed height from the base cloth 11n. The first spinning nozzle 14 is a spinning nozzle using, for example, a melt blow method, and spins fibers 1s by blowing hot air from a hot air jet port 14a to a molten resin jetted from a central resin jet port 14b.
The fiber 1s spun from the first spinning nozzle 14 is blown off by hot air and laminated on the base fabric 11n in a semi-molten state. Then, the fibers 1s come into contact with each other and fuse at the contact points, and the layer of the fibers 1s becomes the nonwoven fabric 1.
【００１１】尚、第一紡糸ノズル１４にスパンボンド
法、その他半溶融繊維を紡出できる方法を利用したノズ
ルを使用することも可能である。The first spinning nozzle 14 may be a spunbond method or a nozzle utilizing a method capable of spinning semi-molten fibers.
【００１２】第一紡糸ノズル１４のコンベヤ上流側（図
中左側）には活性炭供給装置２０が設置されている。活
性炭供給装置２０は、第一紡糸ノズル１４から紡出され
た直後の繊維１ｓに粒状活性炭３を接触させる装置であ
り、ホッパー２２と樋２４とから構成されている。ホッ
パー２２は粒状活性炭３を溜める上部開放形の容器であ
り、樋２４はそのホッパー２２に貯留された粒状活性炭
３をほぼ一定量づつ第一紡糸ノズル１４から紡出された
繊維１ｓの移動空間Ｓ内に自然落下させる。An activated carbon supply device 20 is provided upstream of the first spinning nozzle 14 on the conveyor (left side in the figure). The activated carbon supply device 20 is a device for bringing the granular activated carbon 3 into contact with the fiber 1s immediately after being spun from the first spinning nozzle 14, and includes a hopper 22 and a gutter 24. The hopper 22 is an open-top container for storing the granular activated carbon 3, and the gutter 24 is a moving space S for the fibers 1 s spun from the first spinning nozzle 14 in a substantially constant amount of the granular activated carbon 3 stored in the hopper 22. Let fall naturally inside.
【００１３】樋２４は、第一紡糸ノズル１４から紡出さ
れた繊維１ｓに対して交差する方向から粒状活性炭３を
供給する構造であり、鉛直方向（Ｚ方向）に対する樋２
４の傾きθ１は繊維１ｓの移動空間Ｓ内に粒状活性炭３
がほぼ均等な密度で落下できるような傾きに設定されて
いる。なお、ホッパー２２の供給口２２ｈはほぼ一定量
の粒状活性炭３を連続して樋２４に供給できるように形
成されており、さらにそのホッパー２２には供給口２２
ｈを開閉するバルブ（図示されていない）が設けられて
いる。The gutter 24 has a structure for supplying the granular activated carbon 3 in a direction intersecting with the fiber 1s spun from the first spinning nozzle 14, and the gutter 2 in the vertical direction (Z direction).
4 has a granular activated carbon 3 in the moving space S of the fiber 1s.
Are set so that they can fall at a substantially uniform density. The supply port 22h of the hopper 22 is formed so that a substantially constant amount of the granular activated carbon 3 can be continuously supplied to the gutter 24.
A valve (not shown) for opening and closing the valve h is provided.
【００１４】次に、不織布１の形成方法について説明す
る。先ず、コンベヤ１１が駆動されている状態でそのコ
ンベヤ１１の基布１１ｎに対して第一紡糸ノズル１４か
ら半溶融状態の繊維１ｓが紡出される（図中点線参
照）。次に、ホッパー２２の供給口２２ｈが開かれ、活
性炭供給装置２０の樋２４から粒状活性炭３が繊維１ｓ
の移動空間Ｓ内に落される。繊維１ｓの移動空間Ｓ内に
自然落下した粒状活性炭３はその繊維１ｓを吹き飛ばす
熱風により分散されて複数の繊維１ｓと混合され、さら
に熱風の圧力によって繊維１ｓに押付けられる。これに
よって、粒状活性炭３は繊維１ｓの溶融部分に融着さ
れ、その粒状活性炭３が融着された半溶融状態の繊維１
ｓがコンベヤ１１の基布１１ｎ上に積層される。Next, a method for forming the nonwoven fabric 1 will be described. First, while the conveyor 11 is being driven, the semi-molten fiber 1s is spun from the first spinning nozzle 14 onto the base cloth 11n of the conveyor 11 (see the dotted line in the figure). Next, the supply port 22h of the hopper 22 is opened, and the granular activated carbon 3
Is dropped in the moving space S. The granular activated carbon 3 naturally dropped into the moving space S of the fiber 1s is dispersed by the hot air that blows off the fiber 1s, mixed with the plurality of fibers 1s, and further pressed against the fiber 1s by the pressure of the hot air. As a result, the granular activated carbon 3 is fused to the melted portion of the fiber 1s, and the semi-molten fiber 1 to which the granular activated carbon 3 is fused is attached.
s is laminated on the base cloth 11n of the conveyor 11.
【００１５】そして、積層された繊維１ｓが互いに接触
することにより接触点で融着し、図１（Ｂ）に示すよう
に、繊維層の内部に粒状活性炭３がほぼ均等に配置され
た不織布１が基布１１ｎ上に形成される。前述のよう
に、コンベヤ１１が駆動されて基布１１ｎはＹ方向に移
動しているため、形成された不織布１は連続的にＹ方向
に搬送される。[0015] Then, the laminated fibers 1s come into contact with each other and fuse at the contact points, and as shown in FIG. 1 (B), the nonwoven fabric 1 in which the granular activated carbon 3 is arranged substantially uniformly inside the fiber layer. Is formed on the base cloth 11n. As described above, since the conveyor 11 is driven to move the base cloth 11n in the Y direction, the formed nonwoven fabric 1 is continuously conveyed in the Y direction.
【００１６】このように、本実施形態に係る不織布１の
形成方法によると、第一紡糸ノズル１４から紡出された
半溶融状態の繊維１ｓが基布１１ｎに到達する前に、そ
の繊維に粒状活性炭３が接触するため、粒状活性炭３は
半溶融状態の繊維１ｓに包囲されて固定され、あるいは
繊維１ｓの溶融部分に溶着して固定される。このため、
繊維１ｓと粒状活性炭３とが基布１１ｎに積層された段
階で粒状活性炭３を有する不織布１が形成される。した
がって、不織布１の成形後に粒状活性炭３の散布や不織
布１の加熱等を行う必要がなく、粒状活性炭３を有する
不織布１の製造コストを低減させることができる。As described above, according to the method for forming the nonwoven fabric 1 according to the present embodiment, before the semi-molten fiber 1s spun from the first spinning nozzle 14 reaches the base cloth 11n, the fiber is granulated. Since the activated carbon 3 comes into contact, the granular activated carbon 3 is surrounded and fixed by the semi-molten fiber 1s, or is fixed by welding to the molten portion of the fiber 1s. For this reason,
The nonwoven fabric 1 having the granular activated carbon 3 is formed at the stage when the fiber 1s and the granular activated carbon 3 are laminated on the base cloth 11n. Therefore, there is no need to spray the granular activated carbon 3 or heat the nonwoven fabric 1 after forming the nonwoven fabric 1, and it is possible to reduce the manufacturing cost of the nonwoven fabric 1 having the granular activated carbon 3.
【００１７】また、半溶融状態の繊維１ｓを熱風の圧力
で粒状活性炭３に押付けるため、不織布１に対し粒状活
性炭３をより強固に接着することができる。これによっ
て、不織布１からの粒状活性炭３の脱落を抑制できる。Also, since the semi-molten fiber 1s is pressed against the granular activated carbon 3 by the pressure of hot air, the granular activated carbon 3 can be more firmly adhered to the nonwoven fabric 1. Thereby, falling off of the granular activated carbon 3 from the nonwoven fabric 1 can be suppressed.
【００１８】ここで、本実施形態では、第一紡糸ノズル
１４と活性炭供給装置２０とを使用して内部に粒状活性
炭３がほぼ均等に配置された不織布１を形成する例を示
したが、図２（Ａ）に示すように、その第一紡糸ノズル
１４のコンベヤ上流側に第二紡糸ノズル１５を設置し、
その第一紡糸ノズル１４のコンベヤ下流側に第三紡糸ノ
ズル１６を設置すれば三層構造の不織布３０を形成する
ことができる。Here, in the present embodiment, an example is shown in which the first spinning nozzle 14 and the activated carbon supply device 20 are used to form the nonwoven fabric 1 in which the granular activated carbon 3 is arranged substantially uniformly. As shown in FIG. 2 (A), a second spinning nozzle 15 is provided upstream of the first spinning nozzle 14 on the conveyor,
If the third spinning nozzle 16 is provided downstream of the first spinning nozzle 14 on the conveyor, a nonwoven fabric 30 having a three-layer structure can be formed.
【００１９】即ち、コンベヤ上流側の第二紡糸ノズル１
５によって基布１１ｎに不織布５（下層５）を積層し、
その下層５に第一紡糸ノズル１４と活性炭供給装置２０
とによって粒状活性炭３を有する不織布１（中間層１）
を積層し、さらにその中間層１にコンベヤ下流側の第三
紡糸ノズル１６によって不織布６（表面層６）を積層す
れば、三層構造の不織布３０が形成できる。このよう
に、不織布３０を三層構造とすることにより、内部の粒
状活性炭３がさらに脱落し難くなる。That is, the second spinning nozzle 1 on the upstream side of the conveyor
5, the nonwoven fabric 5 (lower layer 5) is laminated on the base fabric 11n,
The first spinning nozzle 14 and the activated carbon supply device 20
Nonwoven fabric 1 having granular activated carbon 3 (middle layer 1)
And the nonwoven fabric 6 (surface layer 6) is laminated on the intermediate layer 1 by the third spinning nozzle 16 on the downstream side of the conveyor, so that the nonwoven fabric 30 having a three-layer structure can be formed. As described above, by forming the nonwoven fabric 30 into a three-layer structure, the granular activated carbon 3 inside is more difficult to fall off.
【００２０】また、本実施形態では、基布１１ｎを使用
して平板状の不織布３０を形成する例を示したが、基布
１１ｎの代わりに、図２（Ｂ）に示すように製品形状に
等しい成形型１３を使用して、その成形型１３の成形面
１３ｆに対して繊維を紡出すれば、製品形状に等しい不
織布３０を得ることができる。これによって、平板状の
不織布３０をプレス等して製品の形状に加工する工程が
省略できる。なお、成形型１３としては例えば通気性が
ある金属製の網が使用される。Further, in this embodiment, an example in which the flat nonwoven fabric 30 is formed using the base cloth 11n has been described, but instead of the base cloth 11n, the product is formed into a product shape as shown in FIG. If the fibers are spun onto the molding surface 13f of the molding die 13 using the same molding die 13, a nonwoven fabric 30 having the same product shape can be obtained. Thereby, the step of processing the flat nonwoven fabric 30 into a product shape by pressing or the like can be omitted. As the molding die 13, for example, a metal net having air permeability is used.
【００２１】［実施形態２］以下、図３に基づいて本発
明の実施形態２に係る不織布の形成方法について説明す
る。本実施の形態は、実施形態１において使用した第一
紡糸ノズル１４と活性炭供給装置２０とによって二層構
造の不織布を形成する方法に関するものであり、図３
（Ａ）（Ｂ）にその不織布の製造工程を表す模式図が示
されている。不織布４０の製造設備１０は、実施形態１
と同様にＹ方向に延びるコンベヤ１１を備えており、そ
のコンベヤ１１にベルト状の基布１１ｎが水平に装着さ
れている。[Embodiment 2] A method for forming a nonwoven fabric according to Embodiment 2 of the present invention will be described below with reference to FIG. The present embodiment relates to a method for forming a nonwoven fabric having a two-layer structure by using the first spinning nozzle 14 and the activated carbon supply device 20 used in Embodiment 1, and FIG.
(A) and (B) are schematic diagrams showing the manufacturing process of the nonwoven fabric. The manufacturing equipment 10 of the nonwoven fabric 40 is the
And a conveyor 11 extending in the Y direction, and a belt-like base cloth 11n is horizontally mounted on the conveyor 11.
【００２２】コンベヤ１１の基布１１ｎの上方にはその
基布１１ｎから一定の高さ位置に第一紡糸ノズル１４が
下向きに設置されている。さらに、第一紡糸ノズル１４
のコンベヤ上流側（図中左側）には活性炭供給装置２０
が設置されている。活性炭供給装置２０の構造は実施形
態１で説明した活性炭供給装置２０と同様であるが、樋
２４の鉛直方向（Ｚ方向）に対する傾きθ２が実施形態
１における樋２４の傾きθ１よりも大きく設定されてい
る。即ち、本実施形態では、樋２４は実施形態１の場合
よりも水平に近い状態に保持されている。Above the base cloth 11n of the conveyor 11, a first spinning nozzle 14 is installed downward at a fixed height from the base cloth 11n. Further, the first spinning nozzle 14
The activated carbon supply device 20 is located upstream of the conveyor (left side in the figure).
Is installed. The structure of the activated carbon supply device 20 is the same as that of the activated carbon supply device 20 described in the first embodiment, but the inclination θ2 of the gutter 24 in the vertical direction (Z direction) is set to be larger than the inclination θ1 of the gutter 24 in the first embodiment. ing. That is, in the present embodiment, the gutter 24 is kept closer to a horizontal state than in the case of the first embodiment.
【００２３】したがって、その樋２４から供給される粒
状活性炭３の水平方向の慣性力が大きくなり、その粒状
活性炭３は、図３（Ｂ）に示すように、第一紡糸ノズル
１４から紡出された繊維１ｓの移動空間Ｓ内をコンベヤ
上流側（図において左側）からコンベヤ下流側（図にお
いて右側）に移動しながら落下する。このため、繊維１
ｓの移動空間Ｓ内における粒状活性炭３の密度はコンベ
ヤ下流側で大きく、コンベヤ上流側でほぼ零となる。Therefore, the horizontal inertial force of the granular activated carbon 3 supplied from the gutter 24 is increased, and the granular activated carbon 3 is spun from the first spinning nozzle 14 as shown in FIG. The fiber 1s falls while moving in the moving space S from the upstream side of the conveyor (left side in the figure) to the downstream side of the conveyor (right side in the figure). Therefore, fiber 1
The density of the granular activated carbon 3 in the moving space S of s is large on the downstream side of the conveyor, and becomes almost zero on the upstream side of the conveyor.
【００２４】したがって、粒状活性炭３は主に移動空間
Ｓのコンベヤ下流側で複数の繊維１ｓと混合され、それ
らの繊維１ｓに融着される。ここで、コンベヤ１１の基
布１１ｎは、図３（Ａ）に示すように、下流方向（Ｙ方
向）に移動している。このため、第一紡糸ノズル１４か
ら紡出された繊維１ｓが基布１１ｎ上に積層される場合
には、移動空間Ｓのコンベヤ上流側に位置する繊維１ｓ
によって下側の層が形成され、移動空間Ｓのコンベヤ下
流側に位置する繊維１ｓによって上側の層が形成され
る。したがって、基布１１ｎの上には、図３（Ｃ）に示
すように、粒状活性炭３を有しない下層の上に粒状活性
炭３を有する上層が重ねられた二層構造の不織布７が形
成される。Therefore, the granular activated carbon 3 is mainly mixed with the plurality of fibers 1s on the downstream side of the conveyor in the moving space S and fused to the fibers 1s. Here, the base cloth 11n of the conveyor 11 is moving in the downstream direction (Y direction) as shown in FIG. Therefore, when the fibers 1s spun from the first spinning nozzle 14 are laminated on the base fabric 11n, the fibers 1s located on the upstream side of the conveyor in the moving space S
Forms a lower layer, and an upper layer is formed by the fibers 1s located downstream of the conveyor in the moving space S. Therefore, as shown in FIG. 3C, the nonwoven fabric 7 having a two-layer structure in which the upper layer having the granular activated carbon 3 is stacked on the lower layer having no granular activated carbon 3 is formed on the base cloth 11n. .
【００２５】また、第一紡糸ノズル１４のコンベア下流
側（図中右側）に第三紡糸ノズル１６を設置し、その第
三紡糸ノズル１６によって二層構造の不織布７の上に不
織布６（表面層６）を積層すれば、三層構造の不織布４
０を形成できる。即ち、二台の紡糸ノズル１４，１６に
よって三層構造の不織布４０を形成できるため、三台の
紡糸ノズル１４，１５，１６によって三層構造の不織布
３０を形成する場合と比較して設備費を低減できる。Further, a third spinning nozzle 16 is provided downstream of the first spinning nozzle 14 on the conveyor (right side in the figure), and the third spinning nozzle 16 places the nonwoven fabric 6 (surface layer) on the two-layer nonwoven fabric 7. 6), a three-layer nonwoven fabric 4
0 can be formed. That is, since the three-layered nonwoven fabric 40 can be formed by the two spinning nozzles 14 and 16, the equipment cost is reduced as compared with the case where the three-layered nonwoven fabric 30 is formed by the three spinning nozzles 14, 15, and 16. Can be reduced.
【００２６】［実施形態３］以下、図４に基づいて本発
明の実施形態３に係る不織布の形成方法について説明す
る。本実施形態は、実施形態２と同様に第一紡糸ノズル
１４と活性炭供給装置２０とによって二層構造の不織布
を形成する方法に関するものであり、図４（Ａ）（Ｂ）
にその不織布の製造工程を表す模式図が示されている。
不織布５０の製造設備１０は、実施形態１と同様にＹ方
向に延びるコンベヤ１１を備えており、そのコンベヤ１
１にベルト状の基布１１ｎが水平に装着されている。Embodiment 3 Hereinafter, a method for forming a nonwoven fabric according to Embodiment 3 of the present invention will be described with reference to FIG. The present embodiment relates to a method of forming a nonwoven fabric having a two-layer structure by using the first spinning nozzle 14 and the activated carbon supply device 20 as in the second embodiment, and FIGS. 4A and 4B.
FIG. 1 shows a schematic diagram illustrating a manufacturing process of the nonwoven fabric.
The manufacturing equipment 10 for the nonwoven fabric 50 includes a conveyor 11 extending in the Y direction as in the first embodiment.
1, a belt-like base cloth 11n is horizontally mounted.
【００２７】コンベヤ１１の基布１１ｎの上方にはその
基布１１ｎから一定の高さ位置に第一紡糸ノズル１４が
下向きに設置されている。さらに、第一紡糸ノズル１４
のコンベア下流側（図中右側）には活性炭供給装置２０
が設置されている。活性炭供給装置２０の樋２４の鉛直
方向（Ｚ方向）に対する傾きθ２は実施形態２における
樋２４の傾きθ２と等しい値に設定されている。このた
め、実施形態２の場合と同様にその樋２４から供給され
る粒状活性炭３の水平方向の慣性力が大きくなり、粒状
活性炭３は、図４（Ｂ）に示すように、第一紡糸ノズル
１４から紡出された繊維１ｓの移動空間Ｓ内をコンベヤ
下流側からコンベヤ上流側に移動しながら落下する。Above the base cloth 11n of the conveyor 11, a first spinning nozzle 14 is installed downward at a fixed height from the base cloth 11n. Further, the first spinning nozzle 14
The activated carbon feeder 20 is located downstream of the conveyor (right side in the figure).
Is installed. The inclination θ2 of the gutter 24 of the activated carbon supply device 20 with respect to the vertical direction (Z direction) is set to a value equal to the inclination θ2 of the gutter 24 in the second embodiment. Therefore, as in the case of the second embodiment, the horizontal inertial force of the granular activated carbon 3 supplied from the gutter 24 is increased, and the granular activated carbon 3 is, as shown in FIG. The fiber 1s spun from the fiber 14 falls in the moving space S while moving from the downstream side of the conveyor to the upstream side of the conveyor.
【００２８】したがって、移動空間Ｓ内における粒状活
性炭３の密度はコンベヤ上流側で大きく、コンベヤ下流
側でほぼ零となる。これによって、粒状活性炭３は移動
空間Ｓにおけるコンベヤ上流側で複数の繊維１ｓと混合
され、それらの繊維１ｓに融着される。ここで、前述の
ように、第一紡糸ノズル１４から紡出された繊維１ｓが
基布１１ｎ上に積層される場合には、移動空間Ｓのコン
ベヤ上流側に位置する繊維１ｓによって下側の層が形成
され、移動空間Ｓのコンベヤ下流側に位置する繊維１ｓ
によって上側の層が形成される。したがって、基布１１
ｎの上には、図４（Ｃ）に示すように、粒状活性炭３を
有する下層の上に粒状活性炭３を有しない上層が重ねら
れた二重構造の不織布８が形成される。Therefore, the density of the granular activated carbon 3 in the moving space S is large on the upstream side of the conveyor and becomes almost zero on the downstream side of the conveyor. Thus, the granular activated carbon 3 is mixed with the plurality of fibers 1s on the upstream side of the conveyor in the moving space S, and is fused to the fibers 1s. Here, as described above, when the fibers 1s spun from the first spinning nozzle 14 are stacked on the base cloth 11n, the lower layer is formed by the fibers 1s located on the upstream side of the conveyor in the moving space S. Is formed, and the fiber 1s located on the downstream side of the conveyor in the moving space S
Forms the upper layer. Therefore, the base cloth 11
As shown in FIG. 4C, a nonwoven fabric 8 having a double structure in which an upper layer having no granular activated carbon 3 is overlaid on a lower layer having granular activated carbon 3 is formed on n.
【００２９】また、第一紡糸ノズル１４のコンベヤ上流
側に第二紡糸ノズル１５を設置し、その第二紡糸ノズル
１５により形成した不織布５の上に前述の不織布８を積
層すれば、三層構造の不織布５０を形成できる。即ち、
実施形態２の場合と同様に二台の紡糸ノズル１４，１５
によって三層構造の不織布５０を形成できるため設備費
を低減できる。なお、二重構造の不織布８の下側に配置
される不織布５は別工程で形成しても良いし、既設の不
織布５を使用しても良い。If a second spinning nozzle 15 is provided upstream of the first spinning nozzle 14 on the conveyor, and the above-described nonwoven fabric 8 is laminated on the nonwoven fabric 5 formed by the second spinning nozzle 15, a three-layer structure is obtained. Can be formed. That is,
As in the case of the second embodiment, the two spinning nozzles 14 and 15
Thus, the nonwoven fabric 50 having a three-layer structure can be formed, so that the equipment cost can be reduced. In addition, the nonwoven fabric 5 arranged below the nonwoven fabric 8 having the double structure may be formed in a separate step, or an existing nonwoven fabric 5 may be used.
【００３０】ここで、実施形態２、実施形態３では、活
性炭供給装置２０の樋２４を水平に近づけて粒状活性炭
３の水平方向の慣性力が大きくし、繊維１ｓの移動空間
Ｓ内における粒状活性炭３の密度が樋２４の反対側で大
きくなるようにしたが、樋２４を立てることで水平方向
の慣性力を小さくし、移動空間Ｓ内における粒状活性炭
３の密度が樋２４の近傍で大きくなるようにすることも
可能である。Here, in the second and third embodiments, the gutter 24 of the activated carbon supply device 20 is made closer to the horizontal to increase the horizontal inertial force of the granular activated carbon 3, and the granular activated carbon in the moving space S of the fiber 1 s is moved. The density of the granular activated carbon 3 is increased on the opposite side of the gutter 24, but by raising the gutter 24, the horizontal inertial force is reduced, and the density of the granular activated carbon 3 in the moving space S increases near the gutter 24. It is also possible to do so.
【００３１】また、実施形態１〜実施形態３では、機能
部材として粒状活性炭３を使用する例を示したが粒状の
乾燥材等を使用することも可能である。また、実施形態
１〜実施形態３では、粒状活性炭３を樋２４から繊維１
ｓの移動空間Ｓ内に自然落下させる例を示したが、気体
の圧力等を利用して繊維１ｓに吹付けることも可能であ
る。Further, in the first to third embodiments, the example in which the granular activated carbon 3 is used as the functional member has been described. However, a granular drying material or the like can be used. In the first to third embodiments, the granular activated carbon 3 is transferred from the gutter 24 to the fiber 1.
Although the example in which the fibers are naturally dropped into the moving space S of s is shown, it is also possible to spray the fibers 1s using the pressure of gas or the like.
【００３２】なお、本実施の形態により把握される発明
であって特許請求の範囲に記載されていない発明を以下
に追記する。 （１） 請求項１記載の不織布の形成方法において、繊
維の紡出方向に対して交差する方向から粒状の機能部材
を自然落下させて、繊維にその機能部材を接触させるこ
とを特徴とする不織布の形成方法。 （２） 機能部材の落下角度を調整して紡出された複数
の繊維のうち一部の繊維に機能部材を接触させることを
特徴とする不織布の形成方法。Incidentally, the invention which is grasped by the present embodiment and which is not described in the claims is additionally described below. (1) The method for forming a nonwoven fabric according to claim 1, wherein the granular functional member is naturally dropped from a direction intersecting with the fiber spinning direction, and the functional member is brought into contact with the fiber. Formation method. (2) A method for forming a nonwoven fabric, wherein the functional member is brought into contact with some of the fibers spun by adjusting the falling angle of the functional member.
【００３３】[0033]
【発明の効果】本発明によると、繊維と機能部材とが基
材に到達した段階で不織布の形成とその不織布に対する
機能部材の接着とが同時に行われるため、不織布の成形
後に機能部材の散布や不織布の加熱等を行う必要がな
く、機能部材を有する不織布の製造コストを低減させる
ことができる。According to the present invention, the formation of the nonwoven fabric and the adhesion of the functional member to the nonwoven fabric are performed simultaneously when the fiber and the functional member reach the base material. There is no need to heat the nonwoven fabric or the like, and the manufacturing cost of the nonwoven fabric having a functional member can be reduced.
【図１】本発明の実施形態１に係る不織布の製造工程を
表す模式図（Ａ図）及びその不織布の断面を表す模式図
（Ｂ図）である。FIG. 1 is a schematic diagram (FIG. 1A) showing a manufacturing process of a nonwoven fabric according to Embodiment 1 of the present invention and a schematic diagram (FIG. 1B) showing a cross section of the nonwoven fabric.
【図２】不織布の製造工程を表す模式図（Ａ図）及び成
形型を表す模式図（Ｂ図）である。FIG. 2 is a schematic diagram (FIG. A) showing a manufacturing process of a nonwoven fabric and a schematic diagram (FIG. B) showing a molding die.
【図３】本発明の実施形態２に係る不織布の製造工程を
表す模式図（Ａ図）、Ａ図のＢ部拡大図（Ｂ図）及びそ
の不織布の断面を表す模式図（Ｃ図）である。FIG. 3 is a schematic diagram (FIG. A) showing a manufacturing process of a nonwoven fabric according to Embodiment 2 of the present invention, an enlarged view of a B portion of FIG. A (FIG. B), and a schematic diagram (C diagram) showing a cross section of the nonwoven fabric. is there.
【図４】本発明の実施形態３に係る不織布の製造工程を
表す模式図（Ａ図）、Ａ図のＢ部拡大図（Ｂ図）及びそ
の不織布の断面を表す模式図（Ｃ図）である。FIG. 4 is a schematic diagram (FIG. A) showing a manufacturing process of a nonwoven fabric according to Embodiment 3 of the present invention, an enlarged view of a B portion of FIG. A (FIG. B), and a schematic diagram (C diagram) showing a cross section of the nonwoven fabric. is there.
１ 不織布 １ｓ 繊維 ３ 粒状活性炭（機能部材） ５ 不織布 ６ 不織布 ７ 不織布 ８ 不織布 １１ コンベヤ １１ｎ 基布（基材） １４ 第一紡糸ノズル １５ 第二紡糸ノズル １６ 第三紡糸ノズル ２０ 活性炭供給装置 ２４ 樋 DESCRIPTION OF SYMBOLS 1 Nonwoven fabric 1s fiber 3 Granular activated carbon (functional member) 5 Nonwoven fabric 6 Nonwoven fabric 7 Nonwoven fabric 8 Nonwoven fabric 11 Conveyor 11n Base fabric (base material) 14 First spinning nozzle 15 Second spinning nozzle 16 Third spinning nozzle 20 Activated carbon supply device 24 Trough
Claims (5)
繊維を基材に積層して不織布を形成する不織布の形成方
法において、 前記紡糸ノズルから紡出された繊維が前記基材に到達す
る前に、その繊維に対して粒状の機能部材を接触させる
ことを特徴とする不織布の形成方法。1. A method for forming a nonwoven fabric by laminating a semi-molten fiber spun from a spinning nozzle on a base material to form a nonwoven fabric, wherein the fiber spun from the spinning nozzle reaches the base material. A method of forming a nonwoven fabric, wherein a granular functional member is brought into contact with the fibers beforehand.
て、 繊維を気体の圧力で機能部材に押付けることを特徴とす
る不織布の形成方法。2. The method for forming a nonwoven fabric according to claim 1, wherein the fibers are pressed against the functional member by gas pressure.
成方法であって、 基材が型の成形面であることを特徴とする不織布の形成
方法。3. The method for forming a nonwoven fabric according to claim 1, wherein the substrate is a molding surface of a mold.
方法であって、 紡糸ノズルと基材とを繊維の紡出方向に対してほぼ直角
に相対移動させることを特徴とする不織布の形成方法。4. The method for forming a nonwoven fabric according to claim 1, wherein the spinning nozzle and the substrate are relatively moved at a substantially right angle to a fiber spinning direction. Forming method.
て、 紡糸ノズルから紡出された複数の繊維のうちで基材の移
動方向において上流側あるいは下流側に位置する繊維に
機能部材を接触させ、その基材上に機能部材を有する繊
維の層と機能部材を有しない繊維の層とを重ねて積層す
ることを特徴とする不織布の形成方法。5. The method for forming a nonwoven fabric according to claim 4, wherein the functional member is attached to a fiber located upstream or downstream in the moving direction of the base material among the plurality of fibers spun from the spinning nozzle. A method for forming a nonwoven fabric, comprising: contacting and laminating a fiber layer having a functional member and a fiber layer having no functional member on the base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000308200A JP2002115158A (en) | 2000-10-06 | 2000-10-06 | Method for forming nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000308200A JP2002115158A (en) | 2000-10-06 | 2000-10-06 | Method for forming nonwoven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002115158A true JP2002115158A (en) | 2002-04-19 |
Family
ID=18788554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000308200A Pending JP2002115158A (en) | 2000-10-06 | 2000-10-06 | Method for forming nonwoven fabric |
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| JP (1) | JP2002115158A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7416585B2 (en) * | 2004-06-24 | 2008-08-26 | Toyota Boshoku Kabushiki Kaisha | Fuel vapor adsorption filters |
| US7416584B2 (en) | 2004-06-21 | 2008-08-26 | Toyota Boshoku Kabushiki Kaisha | Fuel vapor adsorption filters |
| US7621372B2 (en) | 2006-05-30 | 2009-11-24 | Toyota Boshoku Kabushiki Kaisha | Duct and process for producing the same |
| WO2017039238A1 (en) * | 2015-09-01 | 2017-03-09 | 주식회사 다운울슐레트 | Device for manufacturing nonwoven fabric comprising ball-shaped fiber buffer, nonwoven fabric comprising ball-shaped fiber buffer fabricated using same, and method for manufacturing same |
| KR101786555B1 (en) | 2016-10-04 | 2017-10-17 | 주식회사 다운울슐레트 | Method of manufacturing non-woven fabric including buffer layer of buffer materials and a wave shape center material forming pockets accepting the buffer materials, non-woven fabric including buffer layer of buffer materials and a wave shape center material forming pockets accepting the buffer materials, and Manufacturing device for the non-woven fabric |
| KR101875531B1 (en) * | 2016-12-16 | 2018-07-06 | 주식회사 다운울슐레트 | Apparatus of pattern punching type for manufacturing cushioning nonwoven fabric increasing the binding force of the felt or nonwoven fabric and method of controlling therefor |
| KR20200058681A (en) * | 2018-11-20 | 2020-05-28 | 허승욱 | Manufacturing equipment for activated carbon contained non-woven fabric |
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| JPS6342956A (en) * | 1986-07-31 | 1988-02-24 | キンバリ− クラ−ク コ−ポレ−シヨン | Active particle-containing nonwoven material and its formation |
| JPH02127550A (en) * | 1988-11-04 | 1990-05-16 | Kuraray Co Ltd | Production of non-woven fabric containing fine particle |
| JPH0838834A (en) * | 1994-07-28 | 1996-02-13 | Nippondenso Co Ltd | Manufacture of filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6342956A (en) * | 1986-07-31 | 1988-02-24 | キンバリ− クラ−ク コ−ポレ−シヨン | Active particle-containing nonwoven material and its formation |
| JPH02127550A (en) * | 1988-11-04 | 1990-05-16 | Kuraray Co Ltd | Production of non-woven fabric containing fine particle |
| JPH0838834A (en) * | 1994-07-28 | 1996-02-13 | Nippondenso Co Ltd | Manufacture of filter |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7416584B2 (en) | 2004-06-21 | 2008-08-26 | Toyota Boshoku Kabushiki Kaisha | Fuel vapor adsorption filters |
| US7416585B2 (en) * | 2004-06-24 | 2008-08-26 | Toyota Boshoku Kabushiki Kaisha | Fuel vapor adsorption filters |
| US7621372B2 (en) | 2006-05-30 | 2009-11-24 | Toyota Boshoku Kabushiki Kaisha | Duct and process for producing the same |
| WO2017039238A1 (en) * | 2015-09-01 | 2017-03-09 | 주식회사 다운울슐레트 | Device for manufacturing nonwoven fabric comprising ball-shaped fiber buffer, nonwoven fabric comprising ball-shaped fiber buffer fabricated using same, and method for manufacturing same |
| KR101752768B1 (en) * | 2015-09-01 | 2017-07-11 | 주식회사 다운울슐레트 | Manufacturing device for non-woven fabric with ball-type fiber buffer, non-woven fabric with ball-type fiber buffer manufactured thereby and manufacturing method therefor |
| KR101786555B1 (en) | 2016-10-04 | 2017-10-17 | 주식회사 다운울슐레트 | Method of manufacturing non-woven fabric including buffer layer of buffer materials and a wave shape center material forming pockets accepting the buffer materials, non-woven fabric including buffer layer of buffer materials and a wave shape center material forming pockets accepting the buffer materials, and Manufacturing device for the non-woven fabric |
| KR101875531B1 (en) * | 2016-12-16 | 2018-07-06 | 주식회사 다운울슐레트 | Apparatus of pattern punching type for manufacturing cushioning nonwoven fabric increasing the binding force of the felt or nonwoven fabric and method of controlling therefor |
| KR20200058681A (en) * | 2018-11-20 | 2020-05-28 | 허승욱 | Manufacturing equipment for activated carbon contained non-woven fabric |
| KR102149582B1 (en) * | 2018-11-20 | 2020-08-28 | 허승욱 | Manufacturing equipment for activated carbon contained non-woven fabric |
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