JPH0853026A - Carpet for shaping - Google Patents
Carpet for shapingInfo
- Publication number
- JPH0853026A JPH0853026A JP21176294A JP21176294A JPH0853026A JP H0853026 A JPH0853026 A JP H0853026A JP 21176294 A JP21176294 A JP 21176294A JP 21176294 A JP21176294 A JP 21176294A JP H0853026 A JPH0853026 A JP H0853026A
- Authority
- JP
- Japan
- Prior art keywords
- carpet
- polypropylene
- melting point
- pile
- chips
- 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
- Passenger Equipment (AREA)
- Carpets (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本願発明は自動車等の車両の床の
形状に沿うように成形して用いられるカーペットに関す
る。さらに詳しくは、再生利用が可能な成形用カーペッ
トに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carpet which is molded and used so as to follow the shape of the floor of a vehicle such as an automobile. More particularly, it relates to a recyclable molding carpet.
【0002】[0002]
【従来の技術】従来の成形用カーペットの代表例とし
て、ポリエステルのスパンボンド基布にナイロンBCF
をタフトしてパイルとし、裏面に低密度ポリエチレンシ
ートをラミネートしたものがある。このようなカーペッ
トの製造工程で発生する端材や、使用後のカーペット等
の廃材の再生利用を考えたとき、基布やパイル糸等の素
材別に分離することは困難であり、樹脂別の再生利用は
できない。また、カーペットの素材樹脂はいずれも熱可
塑性樹脂ではあるが互いに相溶性が悪く、これらを混合
溶融して得られる成形品は外観が悪いのみならず強度も
劣ったものとなり使用に耐えない。さらに、カーペット
廃材の焼却には黒煙、高熱あるいは有毒ガスの発生のお
それがあり、埋立処分以外に適当な処理方法がなかっ
た。2. Description of the Related Art As a typical example of conventional molding carpet, nylon spunbond base cloth and nylon BCF are used.
There is one in which a low density polyethylene sheet is laminated on the back surface by tufting into a pile. Considering the recycling of scrap materials generated in the carpet manufacturing process and waste materials such as carpets after use, it is difficult to separate the materials such as the base cloth and pile yarn, and the recycling by resin Not available. Further, although the material resins of the carpets are all thermoplastic resins, they have poor compatibility with each other, and a molded product obtained by mixing and melting these is not only poor in appearance but also inferior in strength and cannot be used. Furthermore, there is a possibility that black smoke, high heat, or toxic gas may be generated when incinerating waste carpet material, and there is no suitable treatment method other than landfill disposal.
【0003】[0003]
【発明が解決しようとする課題】本願発明は上記の従来
の成形用カーペットの現状に鑑み、廃材の再生利用が可
能な成形用カーペットを提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional molding carpet, and an object thereof is to provide a molding carpet in which waste materials can be recycled.
【0004】[0004]
【課題を解決するための手段】本発明者は上記課題の解
決のため鋭意研究の結果、基布、パイル糸、及び裏打ち
材の全てをポリプロピレン系の樹脂で製造することによ
り所期の目的が達せられることを知り本願発明を完成す
るに至った。即ち、本願発明はスパンボンド法によるポ
リプロピレン製基布にポリプロピレン繊維パイルをタフ
トし、裏面に低融点ポリプロピレン樹脂でラミネートし
てなる成形用カーペットである。Means for Solving the Problems As a result of earnest research for solving the above problems, the present inventor has achieved an intended purpose by producing all of a base cloth, a pile yarn, and a backing material from a polypropylene resin. Knowing what they can achieve, they have completed the present invention. That is, the present invention is a molding carpet in which polypropylene fiber piles are tufted on a polypropylene base cloth by the spunbond method and the back surface is laminated with a low melting point polypropylene resin.
【0005】本願発明ではカーペット基布としてスパン
ボンド法によるポリプロピレン製不織布を用いるが、単
糸繊度3〜6デニール、目付け約100g/m2、伸度
30%程度のものが好ましい。そのような不織布とし
て、出光石油化学(株)製:ストラテック、あるいはユ
ニチカ(株)製:マリックスを例示することができる。
従来よりポリプロピレン製フラットヤーン織布を基布と
したカーペットが多用されているが、このようなカーペ
ット基布は目ズレを生じ易く、また得られるカーペット
の伸度が小さいので成形性が劣る。In the present invention, a non-woven fabric made of polypropylene by the spunbond method is used as the carpet base cloth, but a single yarn fineness of 3 to 6 denier, a basis weight of about 100 g / m 2 , and an elongation of about 30% are preferable. Examples of such a non-woven fabric include Stratex manufactured by Idemitsu Petrochemical Co., Ltd. and Marix manufactured by Unitika Ltd.
Conventionally, carpets based on polypropylene flat yarn woven fabrics have been widely used, but such carpet base fabrics are apt to cause misalignment and the resulting carpets have low elongation, resulting in poor moldability.
【0006】本願発明ではカーペットパイルにポリプロ
ピレン製のマルチフィラメントを用いる。マルチフイラ
メントの単糸繊度及びトータル繊度は、カーペットに要
求される強度や風合いに応じて適宜選択使用されるが、
パイル目付けとしては、自動車の床装用カーペットでは
通常250〜500g/m2程度のものが用いられる。In the present invention, polypropylene multifilaments are used for the carpet pile. The single yarn fineness and total fineness of multifilament are appropriately selected and used according to the strength and texture required for the carpet.
As for the pile weight, in the case of carpet for floor covering of automobiles, one having a weight of about 250 to 500 g / m 2 is usually used.
【0007】本願発明ではカーペットの裏面に低融点の
ポリプロピレンをラミネートする。低融点のポリプロピ
レンとしては基布及びパイルを構成するポリプロピレン
の融点より20℃以上、好ましくは30℃以上低い融点
を有するポリプロピレンを使用する。ラミネート用のポ
リプロピレンの融点が基布あるいはパイルの素材の融点
に近いと、ラミネート処理の加工温度が高くなり、カー
ペットがダメージを受けることになり好ましくない。そ
のような低融点のポリプロピレンとしては、プロピレン
を主成分としこれにエチレン、ブテン−1等をランダム
共重合させた二元系共重合体あるいは三元系共重合体か
ら選択することができる。ラミネートの方法としては、
上記の低融点ポリプロピレンを厚さ100〜500m程
度のシートとし、熱ロール法によってカーペット裏面に
融着させる方法、あるいは上記の低融点ポリプロピレン
をカーペット原反の裏面に直接ラミネートする方法が利
用できる。In the present invention, low melting point polypropylene is laminated on the back surface of the carpet. As the low melting point polypropylene, polypropylene having a melting point lower than that of polypropylene constituting the base cloth and the pile by 20 ° C. or higher, preferably 30 ° C. or higher is used. If the melting point of the polypropylene for laminating is close to the melting point of the base cloth or the material of the pile, the processing temperature of the laminating process becomes high and the carpet is damaged, which is not preferable. Such low melting point polypropylene can be selected from a binary copolymer or a ternary copolymer in which propylene is a main component and ethylene, butene-1 and the like are randomly copolymerized. As a method of laminating,
It is possible to use a method in which the low melting point polypropylene is formed into a sheet having a thickness of about 100 to 500 m and is fused to the back surface of the carpet by a hot roll method, or a method in which the low melting point polypropylene is directly laminated on the back surface of the original carpet.
【0008】[0008]
【実施例】実施例および比較例によって本願発明を具体
的に説明する。 実施例1 ポリプロピレン製スパンボンド不織布(目付け:100
g/m2 )にポリプロピレン製マルチフィラメント(2
000デニール/136本)を(ゲージ:1/10、パ
イル目付け:350g/m2 )でタフトして、カーペッ
ト原反を得た。次いで、メルトフローレートが30で、
融点が130℃のエチレン・プロピレン共重合体を押出
温度200℃で、上記のカーペット原反の裏面に直接ラ
ミネート(ラミネート目付け:300g/m2 )して本
考案の成形用カーペットを得た。このカーペットのパイ
ルの引き抜き強力は1.8kg/本であり、十分実用に
耐えるものであった。EXAMPLES The present invention will be specifically described with reference to Examples and Comparative Examples. Example 1 Spunbond nonwoven fabric made of polypropylene (Basis weight: 100
g / m 2 ) polypropylene multifilament (2
000 denier / 136) was tufted with (gauge: 1/10, pile basis weight: 350 g / m 2 ) to obtain a carpet original fabric. Then the melt flow rate is 30,
An ethylene / propylene copolymer having a melting point of 130 ° C. was directly laminated (laminating basis weight: 300 g / m 2 ) on the back surface of the above-mentioned carpet raw material at an extrusion temperature of 200 ° C. to obtain a molding carpet of the present invention. The pull-out strength of the pile of this carpet was 1.8 kg / piece, which was sufficiently practical.
【0009】加熱プレス成形機を用い、上記の成形用カ
ーペットを140℃、60秒間加熱して、底辺が一辺1
0cmの正方形で、深さが5cm、開口部が一辺15c
mの正方形である上方に拡大した箱形に成形した。得ら
れた成形体には裂け目や切れ目は見られず、成形用カー
ペットは良好な深絞り成形特性を有するものであった。
この成形体を破砕し、200℃の押出機で溶融混練し、
押し出して直径約2mmのストランドをえた。得られた
ストランドは太さや光沢に斑がなく均質なものであっ
た。また、このストランドを裁断(ペレタイズ)し、2
30℃の押出機を用いてシート(厚さ:500μm)に
成形したところ、優れた光沢を有し、厚み斑のない良好
なシートが得られた。Using a hot press molding machine, the above molding carpet is heated at 140 ° C. for 60 seconds so that the bottom is 1 side.
It is a 0 cm square with a depth of 5 cm and an opening of 15c on each side.
It was molded into a box shape that is an upwardly enlarged square that is a square of m. No cracks or cuts were found in the obtained molded product, and the molding carpet had good deep-drawing properties.
This molded body is crushed, melt-kneaded with an extruder at 200 ° C.,
Extruded to obtain a strand having a diameter of about 2 mm. The obtained strand was uniform with no unevenness in thickness and gloss. In addition, this strand is cut (pelletized) and 2
When it was formed into a sheet (thickness: 500 μm) using an extruder at 30 ° C., a good sheet having excellent gloss and no thickness unevenness was obtained.
【0010】比較例1 ポリエステル製スパンボンド不織布(目付け:120g
/m2 )にナイロンBCF(2600デニール/136
本)を(ゲージ:1/10、パイル目付け:400g/
m2 )でタフトして、カーペット原反を得た。次いで、
メルトフローレート(190℃)が30で、融点が10
7℃の低密度ポリエチレンを押出温度200℃で、上記
のカーペット原反の裏面に直接ラミネート(ラミネート
目付け:300g/m2 )して成形用カーペットを得
た。このカーペットのパイルの引き抜き強力は1.5k
g/本であり、十分実用に耐えるものであった。Comparative Example 1 Spunbond nonwoven fabric made of polyester (Basis weight: 120 g
/ M 2 ) Nylon BCF (2600 denier / 136
Book) (gauge: 1/10, pile weight: 400 g /
m 2 ) and tufted to obtain a carpet original fabric. Then
Melt flow rate (190 ℃) is 30 and melting point is 10
A low-density polyethylene at 7 ° C. was directly laminated (laminating basis weight: 300 g / m 2 ) on the back surface of the above-mentioned carpet raw fabric at an extrusion temperature of 200 ° C. to obtain a molding carpet. The pull-out strength of this carpet pile is 1.5k
The value was g / piece and was sufficiently practical.
【0011】加熱プレス成形機を用い、上記の成形用カ
ーペットを180℃、20秒間加熱して、実施例1と同
様な箱形に成形した。得られた成形体には裂け目や切れ
目は見られず、成形用カーペットは良好な深絞り成形特
性を有するものであった。この成形体を破砕し、280
℃の押出機で溶融混練し、押し出したところ発泡が激し
く、連続したストランドは得られなかった。Using the hot press molding machine, the above molding carpet was heated at 180 ° C. for 20 seconds to be molded into the same box shape as in Example 1. No cracks or cuts were found in the obtained molded product, and the molding carpet had good deep-drawing properties. This molded body is crushed to 280
When melt-kneaded with an extruder at ℃ and extruded, foaming was severe and continuous strands could not be obtained.
【0012】[0012]
【発明の効果】カーペットの製造工程で発生する端材
や、使用後のカーペット等の廃材の再生利用が可能とな
った。Industrial Applicability The scrap material generated in the carpet manufacturing process and the waste material such as the used carpet can be recycled.
Claims (2)
基布にポリプロピレン繊維パイルをタフトし、裏面に低
融点ポリプロピレン樹脂をラミネートしてなる成形用カ
ーペット。1. A molding carpet obtained by tufting a polypropylene fiber pile on a polypropylene base cloth by a spunbond method and laminating a low melting point polypropylene resin on the back surface.
びパイルの融点より30℃以上低い融点を有することを
特徴とする請求項1に記載の成形用カーペット。2. The molding carpet according to claim 1, wherein the low melting point polypropylene resin has a melting point lower than that of the base cloth and the pile by 30 ° C. or more.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21176294A JPH0853026A (en) | 1994-08-12 | 1994-08-12 | Carpet for shaping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21176294A JPH0853026A (en) | 1994-08-12 | 1994-08-12 | Carpet for shaping |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0853026A true JPH0853026A (en) | 1996-02-27 |
Family
ID=16611165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21176294A Pending JPH0853026A (en) | 1994-08-12 | 1994-08-12 | Carpet for shaping |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0853026A (en) |
-
1994
- 1994-08-12 JP JP21176294A patent/JPH0853026A/en active Pending
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A02 | Decision of refusal |
Effective date: 20040608 Free format text: JAPANESE INTERMEDIATE CODE: A02 |