JP3372472B2 - Artificial turf and its manufacturing method - Google Patents
Artificial turf and its manufacturing methodInfo
- Publication number
- JP3372472B2 JP3372472B2 JP04386198A JP4386198A JP3372472B2 JP 3372472 B2 JP3372472 B2 JP 3372472B2 JP 04386198 A JP04386198 A JP 04386198A JP 4386198 A JP4386198 A JP 4386198A JP 3372472 B2 JP3372472 B2 JP 3372472B2
- Authority
- JP
- Japan
- Prior art keywords
- pile
- base cloth
- back surface
- woven fabric
- cloth
- 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.)
- Expired - Fee Related
Links
Landscapes
- Road Paving Structures (AREA)
- Nonwoven Fabrics (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は人工芝とその製造方
法に係り、特に、基布の裏面に不織布を重合して、パイ
ルのバックステッチ部を加熱溶融する際の熱が基布側に
伝達するのを不織布によって抑制するようにした人工芝
とその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial turf and a method for manufacturing the same, and more particularly, heat generated when a back stitch portion of a pile is heated and melted by polymerizing a non-woven fabric on the back surface of the base cloth to the base cloth side. TECHNICAL FIELD The present invention relates to an artificial turf in which the occurrence of abrasion is suppressed by a non-woven fabric and a method for producing the same.
【０００２】[0002]
【従来の技術】スポーツ施設や公園、広場などに敷設さ
れた人工芝（砂入りまたは砂無し）は、自然芝と比べて
保守管理が容易で降雨等の悪天候にも強いため広く使用
される傾向にある。[Prior Art] Artificial grasses (with or without sand) laid in sports facilities, parks, plazas, etc. tend to be widely used because they are easier to maintain and more resistant to bad weather such as rainfall than natural grass. It is in.
【０００３】人工芝の構造は、一般的にポリプロピレン
の平織物等で構成された基布に、ナイロンやポリプロピ
レン等の合成樹脂から作られたスプリットヤーン（また
はモノフィラメントヤーン）で構成されたパイルを、タ
フティング等により所定間隔をおいて多数植設し、基布
の裏面に、ゴムラテックス、エマルジョンタイプの水性
アクリル樹脂、あるいはウレタン樹脂等の非加熱硬化型
ないし湿気硬化型のバッキング材を塗布乾燥して、基布
の裏面に表れたパイルのバックステッチ部を基布に固定
したものである。The structure of artificial turf is generally based on a plain cloth made of polypropylene or the like and a pile made of split yarn (or monofilament yarn) made of synthetic resin such as nylon or polypropylene. Many are planted at predetermined intervals by tufting, etc., and a non-heat-curing or moisture-curing backing material such as rubber latex, emulsion type water-based acrylic resin, or urethane resin is applied to the back surface of the base cloth and dried. The back stitch portion of the pile, which appears on the back surface of the base cloth, is fixed to the base cloth.
【０００４】しかし、ゴムラテックスは高価な上に塗布
したゴムラテックスの乾燥用熱エネルギや乾燥炉が必要
となる。一方、パイルの材質としてはポリオレフィン系
繊維がよく使用されるが、このポリオレフィン系繊維の
パイルは接着性が弱く、特にホットメルト樹脂組成物な
ど流動性の悪いバッキング材を使用すると、バックステ
ッチ部と基布との間にバッキング材が充分に充填され
ず、この結果接着力がいっそう弱くなり、比較的簡単に
パイルが抜け落ちるなどの不具合が発生しやすい。However, rubber latex is expensive and requires heat energy for drying the rubber latex and a drying oven. On the other hand, a polyolefin fiber is often used as a material for the pile, but the pile of the polyolefin fiber has weak adhesiveness, and particularly when a backing material having poor fluidity such as a hot melt resin composition is used, the back stitch portion and The backing material is not sufficiently filled with the base cloth, and as a result, the adhesive force is further weakened, and problems such as the pile falling out relatively easily occur.
【０００５】一方で、このようなバッキング材を使用せ
ずにパイルを直接的に基布に固定した人工芝も提案され
ている（特開昭５１−４７１６６号や特公平３−４０１
４２号参照）。これらは図３のように、熱可塑性繊維か
らなるパイル７を使用し、基布１の裏面（図３で上面）
に表れたパイルのバックステッチ部７ａを遠赤外線で加
熱溶融して収縮変形させ、バックステッチ部７ａを基布
１裏面に直接的に完全密着させるもので、バックステッ
チ３ａ部相互もタフトホール６部分で融着連結されて強
固なパイル固定力が得られるものである。On the other hand, an artificial turf in which a pile is directly fixed to a base cloth without using such a backing material has also been proposed (Japanese Patent Laid-Open No. 51-47166 and Japanese Patent Publication No. 3-401).
42). These are piles 7 made of thermoplastic fibers as shown in FIG. 3, and the back surface of the base cloth 1 (upper surface in FIG. 3).
The back stitch portion 7a of the pile shown in Fig. 3 is heated and melted by far infrared rays to shrink and deform, and the back stitch portion 7a is directly and completely adhered to the back surface of the base cloth 1. The back stitch 3a portion is also a tuft hole 6 portion. By fusion-bonding with each other, a strong pile fixing force can be obtained.
【０００６】[0006]
【発明が解決しようとする課題】図３のような人工芝に
おいてパイル７のバックステッチ部７ａを熱ローラ等で
熱溶融する場合、使用するパイル材質にもよるが、ポリ
プロピレン製パイルで１８０〜３００℃の熱ローラ温度
が必要である。しかし、このような高温を加えると、最
もよく使用されるポリプロピレン製基布の場合、基布自
体の熱収縮や部分的な歪が生じるため、本格的実用化の
障害となっているのが実情である。When the back stitch portion 7a of the pile 7 in the artificial turf as shown in FIG. 3 is heat-melted by a heat roller or the like, a polypropylene pile has a thickness of 180 to 300 depending on the pile material used. A heat roller temperature of ° C is required. However, when such a high temperature is applied, in the case of the polypropylene base cloth that is most often used, heat shrinkage and partial distortion of the base cloth itself occur, which is an obstacle to full-scale commercialization. Is.
【０００７】前記課題を解決するため本発明に係る人工
芝とその製造方法は、裏面に断熱作用を有する不織布が
重合された基布に、前記不織布よりも溶融温度が低い熱
溶融繊維からなるパイルを前記基布の裏面側から多数植
設し、基布の裏面に出たパイルのバックステッチ部を加
熱溶融して、前記不織布及び／又は隣接バックステッチ
部に融着した。In order to solve the above-mentioned problems, an artificial grass and a method for producing the same according to the present invention include a pile composed of a base cloth having a back surface on which a non-woven fabric having a heat insulating action is polymerized, and a hot-melt fiber having a lower melting temperature than the non-woven fabric. Was planted from the back surface side of the base cloth, and the back stitch portion of the pile on the back surface of the base cloth was heated and melted to be fused to the non-woven fabric and / or the adjacent back stitch portion.
【０００８】不織布はその構造上内部に多くの空気層を
含有し、この空気層が良好な断熱作用を発揮するため、
パイルのバックステッチ部を加熱溶融する際の熱が基布
に伝達するのを抑制し、基布自体の熱収縮や部分的な歪
発生を防止することができる。The non-woven fabric contains a large number of air layers inside due to its structure, and since this air layer exhibits a good heat insulating effect,
It is possible to prevent heat from being transferred to the base cloth when the back stitch portion of the pile is heated and melted, and to prevent heat shrinkage or partial distortion of the base cloth itself.
【０００９】前記基布、不織布及びパイルは、人工芝の
リサイクルを可能とするために、ポリプロピレンなどの
リサイクル可能な同一材質で構成するのが望ましい。It is desirable that the base cloth, the non-woven cloth and the pile are made of the same recyclable material such as polypropylene so that the artificial grass can be recycled.
【００１０】そして、前記パイルの溶融温度は前記不織
布の溶融温度以下であることが好ましい。また本発明の
人工芝は、基布として一般的な平織布を使用すればその
ままで透水性の人工芝とすることができるし、基布の片
面または両面にポリエチレンシート等を熱ラミネートす
ることにより非透水性の人工芝にすることもできる。ま
た基布自体を非透水性シートにすることも可能である。The melting temperature of the pile is preferably lower than the melting temperature of the non-woven fabric. Further, the artificial grass of the present invention can be made as a water-permeable artificial grass as it is by using a general plain woven cloth as a base cloth, and a polyethylene sheet or the like can be heat laminated on one or both sides of the base cloth. Therefore, it is possible to make a non-permeable artificial grass. It is also possible to make the base cloth itself a water-impermeable sheet.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施形態を図１及
び図２に基づいて説明する。図１において１はポリプロ
ピレン繊維の平織布からなる基布であり、２はポリエス
テル繊維からなる不織布である。これら基布１と不織布
２は専用のローラ３，４から水平方向に繰り出され、か
つ、不織布２を上にして上下に重ね合わされた状態でタ
フティング装置５に送り込まれ、不織布２側からニード
ル６が打ち込まれて基布１の表面側（図１で下面側）に
パイル７がタフティングされる。パイル７はポリプロピ
レン繊維からなるスプリットヤーン（またはモノフィラ
メントヤーン）である。基布１とパイル７のポリプロピ
レンは、溶融温度が例えば１６０℃のものを使用し、不
織布２のポリエステルは、溶融温度が例えば２６０℃の
ものを使用する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. 1 and 2. In FIG. 1, 1 is a base fabric made of polypropylene fiber plain woven fabric, and 2 is a non-woven fabric made of polyester fiber. The base cloth 1 and the non-woven cloth 2 are unrolled in the horizontal direction from the dedicated rollers 3 and 4, and are fed to the tufting device 5 in a state where they are stacked vertically with the non-woven cloth 2 facing up, and the needle 6 from the non-woven cloth 2 side. Are piled in and tufting the pile 7 on the front surface side (lower surface side in FIG. 1) of the base fabric 1. The pile 7 is a split yarn (or monofilament yarn) made of polypropylene fiber. The polypropylene of the base cloth 1 and the pile 7 has a melting temperature of, for example, 160 ° C., and the polyester of the non-woven fabric 2 has a melting temperature of, for example, 260 ° C.
【００１２】タフティングされた基布１は熱ローラ８と
押えローラ９との間に送り込まれ、パイル７のバックス
テッチ部７ａが熱ローラ８で加熱される。この時の熱ロ
ーラ８の温度は、低い方で例えば１８０〜２００℃、高
い方で例えば２２０〜２４０℃とする。熱によってバッ
クステッチ部７ａの一部が溶融して不織布２の裏面に含
浸し（図１の黒塗部分）、また隣接するバックステッチ
部７ａ相互が融着連結されてパイル７が強固に固定され
る。なお、熱ローラ８が高温であるほどパイル７のバッ
クステッチ部７ａの融着性が良好になり、また生産性も
高まるので、基布１の歪みを生じさせない範囲で熱ロー
ラ８の温度をできるだけ高温にするのが好ましい。The tufted base fabric 1 is fed between the heat roller 8 and the pressing roller 9, and the back stitch portion 7a of the pile 7 is heated by the heat roller 8. The temperature of the heat roller 8 at this time is, for example, 180 to 200 ° C. at the lower side and 220 to 240 ° C. at the higher side. A part of the back stitch portion 7a is melted by heat to impregnate the back surface of the non-woven fabric 2 (black coating portion in FIG. 1), and adjacent back stitch portions 7a are fusion-bonded to each other to firmly fix the pile 7. It It should be noted that the higher the temperature of the heat roller 8 is, the better the fusing property of the back stitch portion 7a of the pile 7 is, and the higher the productivity is. Therefore, the temperature of the heat roller 8 should be kept as high as possible within the range in which the base cloth 1 is not distorted. High temperatures are preferred.
【００１３】バックステッチ部７ａの溶融箇所は、熱ロ
ーラ８の温度及び押圧力の調節により、不織布２との
隣接部分、隣接バックステッチ部７ａ間、これらの
両方のいずれかとすることが可能である。The melted portion of the backstitch portion 7a can be located either adjacent to the non-woven fabric 2 or between the adjacent backstitch portions 7a or both by adjusting the temperature and pressing force of the heat roller 8. .
【００１４】なお、パイルとしてはポリエステル等の高
融点樹脂の周囲にポリプロピレン等の低融点樹脂を配し
たいわゆる芯鞘繊維も使用可能であり、この場合は鞘繊
維だけが溶けて不織布２の裏面に含浸したり隣接バック
ステッチ部７ａに融着する。As the pile, a so-called core-sheath fiber in which a low-melting resin such as polypropylene is arranged around a high-melting resin such as polyester can be used. In this case, only the sheath fiber is melted and the back surface of the nonwoven fabric 2 is melted. It is impregnated or fused to the adjacent back stitch portion 7a.
【００１５】また、不織布２としてはポリエステル繊維
以外の、例えばポリエチレン繊維の不織布を用いること
もできる。但し、このポリエチレン繊維の不織布は、パ
イルのポリプロピレン繊維よりも低温の融点（約１４０
℃）となるから、不織布２をできるだけ溶融させないた
めに熱ローラ８の温度と押圧力の管理を適切正確に行な
う。Further, as the non-woven fabric 2, a non-woven fabric made of polyethylene fiber other than polyester fiber can be used. However, this non-woven fabric of polyethylene fibers has a lower melting point (about 140
C.), the temperature and pressing force of the heat roller 8 are appropriately and accurately controlled in order to prevent the nonwoven fabric 2 from melting as much as possible.
【００１６】[0016]
【実施例】基布…５２５デニールのポリプロピレン繊維
の経糸と、１０５０デニールのポリプロピレン繊維の緯
糸を、縦横各２．５４ｃｍの領域内で、経糸２４本に対
し緯糸１５本の割合で平織（単層織）とした布を使用す
る。この基布の溶融温度は約１６０℃である。Examples Base cloth: a warp of 525 denier polypropylene fiber and a weft of 1050 denier polypropylene fiber, within a region of 2.54 cm in each length and width, a plain weave (a single layer of 24 warps and 15 wefts). Woven) cloth is used. The melting temperature of this base fabric is about 160 ° C.
【００１７】不織布…ポリエステルフィラメントを、１
００グラム／ｍ2 の目付けでニードルパンチしたものを
使用する。この不織布の溶融温度は２６０℃である。Nonwoven fabric ... 1 polyester filament
Needle punched with a basis weight of 00 g / m 2 is used. The melting temperature of this non-woven fabric is 260 ° C.
【００１８】パイル…ポリプロピレン繊維からなる１
０，０００デニールのスプリットヤーンを使用する（Ｐ
ｏｌｙｌｏｏｍ社製）。このパイルの溶融温度は１６５
℃である。Pile: polypropylene fiber 1
Use 10,000 denier split yarn (P
manufactured by ollyom). The melting temperature of this pile is 165
℃.
【００１９】融着方法…２００〜２１０℃の熱ローラに
て融着する。Fusing method: Fusing with a heat roller at 200 to 210 ° C.
【００２０】以上の実施例で製造した人工芝は、基布に
歪みがまったく観察されず、また製造時及び３ヶ月の使
用後でパイルの脱落が皆無であった。In the artificial turf produced in the above examples, no distortion was observed in the base fabric, and the pile was not dropped during the production and after 3 months of use.
【００２１】以上、本発明の実施形態と実施例について
説明したが、本発明は前述した構造以外にも実施可能で
あり、例えば不織布は基布の裏面にフィラメントを１０
０グラム／ｍ2 以上の目付けで直接的に打ち込んだもの
でもよく、この場合、不織布層の裏面側にフィラメント
の起毛が多く表れるように打ち込むことが断熱性能を高
める上で好ましい。Although the embodiments and examples of the present invention have been described above, the present invention can be carried out in a structure other than that described above.
It may be directly impregnated with a basis weight of 0 g / m 2 or more. In this case, it is preferable to impregnate filaments on the back surface side of the non-woven fabric layer so that a large number of filaments are raised in order to improve the heat insulation performance.
【００２２】[0022]
【発明の効果】本発明は前述の如く、基布の裏面に断熱
作用のある不織布を重合し、この不織布によってパイル
のバックステッチ部の溶融熱が基布に伝達するのを抑制
するようにしたので、基布自体の熱収縮や部分的な歪発
生を防止することができる。また、このように熱伝達を
抑制できる結果、熱ローラなどによる溶融温度を上昇さ
せることができることになり、人工芝の生産効率上昇と
パイルのバックステッチ部融着の確実性が高まる。As described above, according to the present invention, a non-woven fabric having a heat insulating effect is polymerized on the back surface of the base fabric, and the non-woven fabric suppresses the transfer of the heat of fusion of the back stitch portion of the pile to the base fabric. Therefore, it is possible to prevent heat shrinkage and partial strain generation of the base fabric itself. Further, as a result of suppressing the heat transfer in this way, the melting temperature by the heat roller or the like can be raised, and the production efficiency of the artificial turf is increased and the reliability of the fusion of the back stitch portion of the pile is increased.
【図１】本発明に係る人工芝の製造装置の側面図。FIG. 1 is a side view of an artificial turf manufacturing apparatus according to the present invention.
【図２】本発明に係る人工芝の断面図。FIG. 2 is a sectional view of an artificial turf according to the present invention.
【図３】従来の人工芝の断面図。FIG. 3 is a cross-sectional view of a conventional artificial grass.
１ 基布 １ａ タフトホール ２ 不織布 ３，４ ローラ ５ タフティング装置 ６ ニードル ７ パイル ７ａ バックステッチ部 ８ 熱ローラ ９ 押えローラ 1 base cloth 1a tuft hall 2 non-woven fabric 3,4 roller 5 tufting device 6 needles 7 piles 7a Backstitch part 8 heat roller 9 Presser roller
Claims (3)
た基布に、前記不織布よりも溶融温度が低い熱溶融繊維
からなるパイルを前記基布の裏面側から多数植設し、 基布の裏面に出たパイルのバックステッチ部を加熱溶融
して、前記不織布及び／又は隣接バックステッチ部に融
着したことを特徴とする人工芝。1. A base cloth having a non-woven fabric having a heat insulating effect polymerized on the back surface, and a large number of piles of hot-melt fibers having a lower melting temperature than the non-woven cloth are planted from the back surface side of the base cloth. An artificial turf, characterized in that the back stitch portion of the pile on the back surface is heated and melted, and is fused to the nonwoven fabric and / or the adjacent back stitch portion.
ル可能な同一材質で構成したことを特徴とする請求項１
記載の人工芝2. The base cloth, the non-woven cloth, and the pile are made of the same recyclable material.
Described artificial grass
た基布に、前記不織布よりも溶融温度が低い熱溶融繊維
からなるパイルを前記基布の裏面側から多数植設し、 基布の裏面に出たパイルのバックステッチ部を加熱溶融
して、前記不織布及び／又は隣接バックステッチ部に融
着したことを特徴とする人工芝の製造方法。3. A base cloth having a non-woven fabric having a heat insulating effect polymerized on the back surface, and a large number of piles made of hot-melt fibers having a lower melting temperature than the non-woven cloth are planted from the back surface side of the base cloth. A method for producing artificial turf, characterized in that the back stitch portion of the pile on the back surface is heated and melted, and is fused to the non-woven fabric and / or the adjacent back stitch portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04386198A JP3372472B2 (en) | 1998-02-25 | 1998-02-25 | Artificial turf and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04386198A JP3372472B2 (en) | 1998-02-25 | 1998-02-25 | Artificial turf and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11241308A JPH11241308A (en) | 1999-09-07 |
| JP3372472B2 true JP3372472B2 (en) | 2003-02-04 |
Family
ID=12675491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04386198A Expired - Fee Related JP3372472B2 (en) | 1998-02-25 | 1998-02-25 | Artificial turf and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3372472B2 (en) |
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| CN107009631A (en) * | 2017-05-15 | 2017-08-04 | 江苏共创人造草坪有限公司 | A kind of recyclable chinampa of entirety and preparation method thereof |
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| JPH11241308A (en) | 1999-09-07 |
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