JP3472157B2 - Interior materials - Google Patents
Interior materialsInfo
- Publication number
- JP3472157B2 JP3472157B2 JP28210698A JP28210698A JP3472157B2 JP 3472157 B2 JP3472157 B2 JP 3472157B2 JP 28210698 A JP28210698 A JP 28210698A JP 28210698 A JP28210698 A JP 28210698A JP 3472157 B2 JP3472157 B2 JP 3472157B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- barrier
- interior
- fibers
- barrier material
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
- B29C45/14811—Multilayered articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0809—Fabrics
- B29K2105/0818—Fleece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2715/00—Condition, form or state of preformed parts, e.g. inserts
- B29K2715/003—Cellular or porous
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、熱可塑性樹脂の基
材にクッション材を介して表皮材を一体化させた、自動
車用内装部品等に使用する内装材に関する。
【０００２】
【従来の技術】従来、自動車のドアや天井等の自動車用
内装部品には、成形樹脂基材の表面に布地等の表皮材を
接着した内装材が装着されている。かかる内装材は、例
えば布地又はその片面に溶着用樹脂シートを積層したも
のを表皮材とし、これを射出成形金型の固定型に配置し
た後に可動型を移動して型閉めし、溶融した熱可塑性樹
脂を射出すると言う工程で製造されている。
【０００３】しかし、上記従来の内装材は、弾性に乏し
く表面が硬いため、触感が好ましくなかった。このた
め、表皮材と基材との間にクッション材である発泡層を
設けてソフトな触感を実現しようとする試みもあるが、
この場合、上記の製造工程において射出された溶融状態
の基材樹脂が発泡層内に浸透してクッション材の機能を
損ない、ソフトな触感の実現を妨げると言う不具合があ
った。
【０００４】これに対して、例えば特開昭６０−２１２
３４２号公報に開示された「発泡層を備えた積層成形
品」の発明では、発泡層の裏面に、好ましくは基材樹脂
よりも融点の高い樹脂フィルムや不織布等からなるバッ
キング材を積層することにより、上記した溶融樹脂の発
泡層内への浸透を阻止しようとしている。
【０００５】
【発明が解決しようとする課題】しかし、上記特開昭６
０−２１２３４２号公報では、バッキング材（溶融樹脂
の発泡層内への浸透に対するバリア材）として、必ずし
もその製造工程との対応において最適に設計された構成
が提示されているのではなく、単に一般的な樹脂フィル
ムや不織布等が提示されているに過ぎない。
【０００６】このような一般的なバッキング材を用いた
場合、例えば内装材の複雑な形状に対しバッキング材の
柔軟性がないことに起因して形状に追従できずシワや浮
きが発生すると言う不具合を生じたり、バッキング材の
伸縮性の不足から表層材にシワが発生したり、バッキン
グ材そのものが破壊し溶融樹脂が発泡層を通過して表面
に浸み出すと言う不具合を生じたりして、結果的に内装
材のソフトな触感や成形性を必ずしも充分に確保できな
いことが判明した。
【０００７】そこで本発明は、前記内装材の製造工程と
の対応において最適に設計されたバリア材の構成を提供
することを、解決すべき課題とする。
【０００８】
【課題を解決するための手段】上記課題を解決するため
の本願発明の構成は、表皮材、クッション材及びバリア
材からなる積層体に対し、そのバリア材側に基材樹脂を
射出成形して一体化させた内装材であって、前記バリア
材が、前記基材樹脂よりも高融点で繊維長が１００ｍｍ
以下である短繊維を抄紙法により積層し水流交絡させ
た、目付が６０〜２００ｇ／ｍ2である不織布シートを
以て構成されている、内装材である。
【０００９】ここで言う「射出成形」とは、上型と下型
が型閉めされた後樹脂が射出される成形方法、又は、上
型と下型が開いた状態で樹脂が射出されその後型閉めさ
れる成形方法、又は、上型と下型の型閉めと同時に樹脂
が射出される成形方法の何れかを指す。
【００１０】
【発明の作用・効果】本願発明の内装材においては、表
皮材の裏面にクッション材及びバリア材を設けた積層体
を基材樹脂と一体化させているので、クッション材によ
るソフトな触感を実現でき、かつ、基材樹脂の射出成形
の際における溶融した基材樹脂のクッション材への浸透
が、バリア材によって阻止される。
【００１１】そして、バリア材として短繊維をランダム
に交絡させた不織布シートを用いるので、前記従来技術
の不織布からなるバッキング材に比較して溶融樹脂が浸
透し難い構造とすることができ、又、かかる短繊維は繊
維長１００ｍｍ以下のものを抄紙法により積層し水流交
絡させたものであるため、例えばカード法による交絡繊
維に比較しても繊維の配向がランダムになり繊維間の隙
間が均一になると言う効果がある。
【００１２】次に、不織布シートの目付が６０ｇ／ｍ2
以上であるため、繊維間の隙間を溶融樹脂が浸透し難い
間隔に保つと言う効果があり、一方、目付が２００ｇ／
ｍ2以下であるため、内装材の形状に追従できる柔軟性
を確保できると言う効果がある。
【００１３】なお、本発明によれば基材の成形と同時に
内装材自体も形成されるので製造効率が良く、又、不織
布シートを構成する繊維は基材樹脂よりも高融点である
ため、基材樹脂の射出成形の際に繊維が溶融してバリア
効果を損なうと言う不具合がない。
【００１４】
【発明の実施の形態】〔内装材〕本発明の内装材は、表
皮材の裏面にクッション材及びバリア材を積層させて積
層体を構成し、この積層体をバリア材側がキャビティに
対面するように成形型に配置した後、溶融樹脂を射出成
形（射出圧縮成形の場合も含む）して、基材を成形する
と同時にこれを上記積層体と一体化させたものである。
【００１５】上記の表皮材−クッション材間、クッショ
ン材−バリア材間は、適宜な接着剤を用いたり、クッシ
ョン材の表面部を熱溶融させたりしたもとで、圧接ロー
ラ等を用いて接着又は融着により結合させることができ
る。
【００１６】〔表皮材〕表皮材としては、ナイロン，ポ
リエステル，ポリプロピレン，アクリロニトリル等の合
成繊維、レーヨン，ポリノジック，キュプラ等の再生繊
維又はウール，綿等の天然繊維よりなる織物、あるいは
これらの組合せよりなる織物、編み物もしくは不織布及
び毛織物，綿織物，皮革，塩化ビニルレザー，ポリプロ
ピレンレザー等の中から適宜選択することができる。
【００１７】〔クッション材〕クッション材としては、
発泡樹脂材が用いられる。具体的には、ポリウレタンフ
ォーム，ポリプロピレンフォーム，ポリエチレンフォー
ム，ポリ塩化ビニルフォーム等の厚さ１〜１０ｍｍ程度
の軟質発泡シートを適宜に選択して用いることができ
る。
【００１８】〔バリア材〕バリア材としては、後述の基
材樹脂よりも高融点の樹脂繊維からなるものが好まし
い。バリア材は、繊維長が１００ｍｍ以下である短繊維
を抄紙法により積層し水流交絡させて（即ち、予め短繊
維を水に分散させた短繊維分散水の水流をメッシュネッ
ト上に当てることにより、メッシュネット上に短繊維を
積層させてウェブを形成させた後、このウェブに上下の
一方又は双方よりウォータージェット水流を当てて短繊
維を交絡させることにより）構成される。
【００１９】上記短繊維は、０．１〜３．０デニール程
度であって、その繊維長が１００ｍｍ以下、特に７０ｍ
ｍ以下であるものが好ましく、繊維の種類としてはナイ
ロン，ポリエステル，ポリプロピレン，アクリル等の合
成繊維、レーヨン，ポリノジック，キュプラ等の再生繊
維又はウール，綿等の天然繊維の１種又は２種以上が混
合されたものを例示することができる。
【００２０】バリア材の厚さは特段に限定されないが、
例えば０．３ｍｍ〜１．０ｍｍ程度とすることができ、
又、その目付を６０〜２００ｇ／ｍ2、とりわけ６０〜
１００ｇ／ｍ2とすることが好ましい。
【００２１】〔基材〕基材の射出成形（又は射出圧縮成
形）に供される熱可塑性樹脂の種類は限定されず、ＡＢ
Ｓ樹脂，塩化ビニル樹脂，塩化ビニリデン樹脂，酢酸ビ
ニル樹脂，メタアクリル樹脂，スチレン樹脂，ポリアミ
ド樹脂，ポリエチレン樹脂，ポリプロピレン樹脂，ポリ
カーボネート樹脂，アセタール樹脂等を任意に選択して
用いることができる。
【００２２】
【実施例】次に、本発明の一実施例を図面に基づいて説
明する。
【００２３】（実施例１）図１は本発明にかかる内装材
１の一部の断面図を示し、適宜な材質からなる表皮材２
の裏面には、樹脂フォーム材（例えば、密度が０．０３
５ｇ／ｃｍ3以上の軟質ポリウレタンフォーム）からな
るクッション材３が設けられ、該クッション材３の裏面
には、繊維長が１００ｍｍ以下の適宜な種類の短繊維を
抄紙法により積層し水流交絡させた不織布からなるバリ
ア材４が設けられて、これらの表皮材２〜バリア材４に
より積層体５が構成されている。そして積層体５はポリ
プロピレン製の基材６と一体化されている。
【００２４】上記の積層体５は、火炎の状態を厳密に自
動調節された空気混合ガス火炎によってクッション材３
の両面の表面部を溶融させ、これを直ちに表皮材２とバ
リア材４の間に重ねて圧接ローラの間に通し、融着によ
り一体化させたものである。なお、積層体５の各層を適
宜な接着材を用いて接着しても構わない。
【００２５】図２は、上記のように形成された積層体５
を用いて内装材１を形成する工程例を示し、射出成形金
型の固定型７上に、バリア材４を下側にした状態で積層
体５を密着させて配置し、次いで可動型８を閉じて、ス
プルー９よりキャビティへ溶融ポリプロピレンを射出
し、冷却して、積層体５と一体化された基材６を成形す
る。
【００２６】なお、図２においては固定型７と可動型８
が上下に配置されているが、これらの両型が左右に配置
（図上、時計廻り方向又は反時計廻り方向へ９０°回転
した状態の配置）された射出成形金型を用いて内装材１
の上記形成工程を行っても良い。
【００２７】（実施例２）末尾の表１に示す例１〜例４
に係る内装材を、それぞれ上記の実施例１に記載した方
法により試作した。表１の各例中、例１と例２は本発明
の実施例、例３と例４は比較例である。
【００２８】各例におけるバリア材（表１では「バリヤ
層不織布」として表記）の形成方法、構成繊維の繊維
長、材質及び融点、バリア材の目付、通気度、各例にお
けるクッション材の材質及び密度、並びに各例における
基材の材質及び融点は、表１に示す通りであった。
【００２９】なお、表１に示す抄紙法、カード法、スパ
ンボンド法についての繊維交絡の状況を写真観察等によ
り比較して見たが、それによると、抄紙法による交絡繊
維の方がカード法による交絡繊維に比較して繊維の配向
がランダムになり易く、短繊維の交絡である結果、バリ
ア材としてあらゆる方向の射出圧力に追従でき好適であ
った。スパンボンド法は連続長繊維が交絡するため、バ
リア材として射出圧力に対してつっぱり、柔軟性（の
び）が著しく悪かった。
【００３０】これらの各例につき、成形後のクッション
残存厚さでクッション性評価を行い、又、目視によりシ
ワの発生や樹脂の浸み出しを評価して内装材の成形性評
価とした。
【００３１】評価結果は○，△，×の３段階で判定し
た。クッション性評価において、○は射出ゲート直下で
残存厚さ１ｍｍ以上であったもの、△は射出ゲート直下
で残存厚さ１ｍｍ未満であるが一般面では残存厚さ１ｍ
ｍ以上であったもの、×は射出ゲート直下でも一般面で
も残存厚さ１ｍｍ未満であったものをそれぞれ示し、成
形性評価において、○はシワの発生及び樹脂の浸み出し
がなかったもの、△は若干のシワの発生はあったが樹脂
の浸み出しがなかったもの、×はシワの発生及び樹脂の
浸み出しがあったものをそれぞれ示す。
【００３２】表１の評価結果より明らかなように、例１
及び例２はクッション性評価、内装材の成形性評価共に
良好であった。例３及び例４はクッション性評価が明ら
かに見劣りしたが、その理由は、バッキング材のバリア
効果不十分とクッション材の弾性不足と言う点にあると
考えられる。又、例４は成形性評価においても見劣りし
たが、その理由は、バッキング材のバリア効果不足と言
う点にあると考えられる。
【００３３】
【表１】 Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior used for interior parts for automobiles and the like, in which a skin material is integrated with a thermoplastic resin base material via a cushion material. About materials. 2. Description of the Related Art Conventionally, automotive interior parts such as doors and ceilings of automobiles are equipped with interior materials obtained by bonding a surface material such as cloth to a surface of a molded resin base material. Such an interior material is, for example, a cloth material or a material obtained by laminating a resin sheet for welding on one surface thereof as a skin material. After disposing the skin material on a fixed die of an injection molding die, the movable die is moved to close the die, and the molten heat It is manufactured by a process of injecting a plastic resin. However, the above-mentioned conventional interior materials have poor elasticity and a hard surface, so that the tactile sensation is not preferable. For this reason, there is also an attempt to provide a foam layer that is a cushion material between the skin material and the base material to realize a soft tactile sensation,
In this case, there is a problem that the molten base resin injected in the above-described manufacturing process penetrates into the foamed layer and impairs the function of the cushioning material, thereby hindering the realization of a soft touch. On the other hand, for example, Japanese Patent Laid-Open No.
In the invention of the "laminated product having a foamed layer" disclosed in Japanese Patent No. 342, a backing material made of a resin film or a nonwoven fabric, preferably having a higher melting point than the base resin, is laminated on the back surface of the foamed layer. Thus, it is attempted to prevent the molten resin from penetrating into the foamed layer. [0005] However, Japanese Patent Application Laid-Open No.
In Japanese Patent Application Laid-Open No. 0-212342, as a backing material (a barrier material against permeation of a molten resin into a foamed layer), a configuration that is optimally designed in correspondence with the manufacturing process is not necessarily presented. It merely presents a typical resin film or nonwoven fabric. [0006] When such a general backing material is used, for example, the backing material is not flexible with respect to the complicated shape of the interior material, so that the shape cannot follow the shape and wrinkles and floating occur. Or cause wrinkles in the surface layer material due to lack of elasticity of the backing material, or the failure that the backing material itself breaks down and the molten resin passes through the foam layer and oozes to the surface, As a result, it was found that the soft touch and moldability of the interior material could not always be sufficiently ensured. Therefore, an object of the present invention is to provide a configuration of a barrier material that is optimally designed in correspondence with the interior material manufacturing process. [0008] In order to solve the above-mentioned problems, a configuration of the present invention is a method of injecting a base resin on a barrier material side of a laminate comprising a skin material, a cushion material, and a barrier material. An interior material molded and integrated, wherein the barrier material has a higher melting point than the base resin and a fiber length of 100 mm.
This is an interior material composed of a nonwoven fabric sheet having a basis weight of 60 to 200 g / m 2 , in which the following short fibers are laminated and hydroentangled by a papermaking method. The term "injection molding" used herein refers to a molding method in which the resin is injected after the upper mold and the lower mold are closed, or the resin is injected in a state in which the upper mold and the lower mold are opened and then the mold is injected. It refers to either a molding method that is closed or a molding method in which resin is injected at the same time when the upper and lower molds are closed. In the interior material according to the present invention, the laminated body provided with the cushioning material and the barrier material on the back surface of the skin material is integrated with the base resin, so that the softness of the cushioning material is improved. The tactile sensation can be realized, and the barrier material prevents the molten base resin from penetrating into the cushion material during the injection molding of the base resin. Since the nonwoven fabric sheet in which short fibers are randomly entangled is used as the barrier material, a structure in which the molten resin is hardly permeated as compared with the backing material made of the nonwoven fabric of the prior art can be obtained. Since such short fibers are those having a fiber length of 100 mm or less laminated by a papermaking method and subjected to hydroentanglement, for example, the orientation of the fibers is random even when compared to the entangled fibers by the card method, and the gap between the fibers is uniform. It has the effect of becoming. Next, the basis weight of the nonwoven fabric sheet is 60 g / m 2.
As described above, there is an effect that the gap between the fibers is maintained at an interval at which the molten resin hardly penetrates, while the basis weight is 200 g /
Since it is not more than m 2 , there is an effect that flexibility that can follow the shape of the interior material can be secured. According to the present invention, the interior material itself is formed at the same time as the molding of the base material, so that the production efficiency is high. Further, since the fibers constituting the nonwoven fabric sheet have a higher melting point than the base resin, the base material has a higher melting point. There is no problem that fibers are melted at the time of injection molding of the material resin to impair the barrier effect. BEST MODE FOR CARRYING OUT THE INVENTION [Interior Material] The interior material of the present invention comprises a laminate in which a cushion material and a barrier material are laminated on the back surface of a skin material, and the laminate material is formed into a cavity on the barrier material side. After being placed in a molding die so as to face each other, the molten resin is injection-molded (including the case of injection compression molding) to form a base material and at the same time integrate it with the laminate. A suitable adhesive is used between the skin material and the cushion material and between the cushion material and the barrier material, and the surface of the cushion material is melted by heat and then bonded by using a pressure roller or the like. Alternatively, they can be bonded by fusion. [Skin material] The skin material is a synthetic fiber such as nylon, polyester, polypropylene, acrylonitrile, a regenerated fiber such as rayon, polynosic, cupra, or a woven fabric composed of natural fibers such as wool or cotton, or a combination thereof. Woven fabric, knitted fabric or nonwoven fabric and wool fabric, cotton fabric, leather, vinyl chloride leather, polypropylene leather and the like. [Cushion material] As the cushion material,
A foamed resin material is used. Specifically, a flexible foam sheet having a thickness of about 1 to 10 mm such as a polyurethane foam, a polypropylene foam, a polyethylene foam, or a polyvinyl chloride foam can be appropriately selected and used. [Barrier Material] The barrier material is preferably made of resin fibers having a higher melting point than the base resin described below. The barrier material is formed by laminating short fibers having a fiber length of 100 mm or less by a papermaking method and hydroentangled (that is, by applying a short fiber-dispersed water flow in which short fibers are previously dispersed in water to a mesh net, After laminating short fibers on a mesh net to form a web, the web is entangled with short fibers by applying a water jet stream from one or both sides of the web. The short fibers have a denier of about 0.1 to 3.0 and a fiber length of 100 mm or less, particularly 70 m or less.
m or less, and one or more of natural fibers such as synthetic fibers such as nylon, polyester, polypropylene and acrylic, regenerated fibers such as rayon, polynosic and cupra, and natural fibers such as wool and cotton. Mixtures can be exemplified. Although the thickness of the barrier material is not particularly limited,
For example, it can be about 0.3 mm to 1.0 mm,
Also, the basis weight is 60 to 200 g / m 2 , especially 60 to 200 g / m 2 .
It is preferably 100 g / m 2 . [Substrate] The type of thermoplastic resin used for injection molding (or injection compression molding) of the substrate is not limited.
S resin, vinyl chloride resin, vinylidene chloride resin, vinyl acetate resin, methacrylic resin, styrene resin, polyamide resin, polyethylene resin, polypropylene resin, polycarbonate resin, acetal resin and the like can be arbitrarily selected and used. Next, an embodiment of the present invention will be described with reference to the drawings. ( Embodiment 1 ) FIG. 1 is a sectional view of a part of an interior material 1 according to the present invention, and a skin material 2 made of an appropriate material.
On the back surface, a resin foam material (for example, having a density of 0.03
A cushion material 3 made of a flexible polyurethane foam of 5 g / cm 3 or more is provided. On the back surface of the cushion material 3, short fibers of an appropriate type having a fiber length of 100 mm or less are laminated by a papermaking method and subjected to hydroentanglement. A barrier material 4 made of a nonwoven fabric is provided, and a laminate 5 is configured by the skin material 2 to the barrier material 4. The laminate 5 is integrated with a base material 6 made of polypropylene. The above-mentioned laminate 5 is made of a cushion material 3 by an air-mixed gas flame whose state of flame has been strictly automatically adjusted.
The surface portions of both surfaces are melted, and this is immediately superimposed between the skin material 2 and the barrier material 4 and passed between the pressure contact rollers, and integrated by fusion. Note that each layer of the laminate 5 may be bonded using an appropriate adhesive. FIG. 2 shows the laminate 5 formed as described above.
An example of a process for forming the interior material 1 by using the above method is shown. The laminated body 5 is placed on the fixed die 7 of the injection molding die in close contact with the barrier material 4 facing down, and then the movable die 8 is After closing, the molten polypropylene is injected from the sprue 9 into the cavity, cooled, and the base material 6 integrated with the laminate 5 is formed. In FIG. 2, a fixed mold 7 and a movable mold 8 are shown.
Are arranged up and down, and the interior material 1 is formed using an injection molding die in which both of these dies are arranged left and right (in the figure, the clockwise or counterclockwise direction is rotated by 90 °).
May be performed. ( Embodiment 2 ) Examples 1 to 4 shown in Table 1 at the end
Were produced by the method described in Example 1 above. In each example of Table 1, Examples 1 and 2 are Examples of the present invention, and Examples 3 and 4 are Comparative Examples. The method of forming the barrier material (denoted as “barrier layer nonwoven fabric” in Table 1), the fiber length, material and melting point of the constituent fibers, the basis weight of the barrier material, the air permeability, the material and the cushion material in each example The density and the material and melting point of the substrate in each example were as shown in Table 1. The entangled fibers in the papermaking method, the card method and the spunbond method shown in Table 1 were compared by photograph observation and the like. The fiber orientation tends to be random compared to the entangled fiber, and as a result of the entanglement of the short fiber, the barrier material is suitable because it can follow the injection pressure in all directions. In the spunbonding method, since continuous continuous fibers are entangled, the material is pulled against the injection pressure as a barrier material, and the flexibility (expansion) is extremely poor. For each of these examples, the cushioning property was evaluated based on the remaining cushion thickness after molding, and the occurrence of wrinkles and the leaching of resin were visually evaluated to evaluate the moldability of the interior material. The evaluation results were evaluated in three stages of △, Δ, and ×. In the cushioning property evaluation, ○ indicates that the residual thickness was 1 mm or more immediately below the injection gate, and Δ indicates that the residual thickness was less than 1 mm immediately below the injection gate, but the residual thickness was 1 m on the general surface.
m or more, x indicates that the residual thickness was less than 1 mm either directly below the injection gate or on the general surface, and in the moldability evaluation, ○ indicates that no wrinkles were generated and no resin exudation occurred, The symbol Δ indicates that wrinkles occurred but the resin did not exude, and the symbol X indicates that wrinkles occurred and the resin exuded. As is clear from the evaluation results in Table 1, Example 1
And in Example 2, both the evaluation of the cushioning property and the evaluation of the moldability of the interior material were good. In Examples 3 and 4, the cushioning property evaluation was clearly inferior, which is considered to be due to insufficient barrier effect of the backing material and insufficient elasticity of the cushioning material. In addition, Example 4 was inferior in the evaluation of moldability, probably because the backing material had insufficient barrier effect. [Table 1]
【図面の簡単な説明】
【図１】実施例１に係る内装材の一部を示す断面図であ
る。
【図２】実施例１の工程を示す断面図である。
【符号の説明】
１ 内装材
２ 表皮材
３ クッション材
４ バリア材
５ 積層体
６ 基材
７ 固定型
８ 可動型BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing a part of an interior material according to a first embodiment. FIG. 2 is a cross-sectional view showing a process of Example 1. [Description of Signs] 1 Interior material 2 Skin material 3 Cushion material 4 Barrier material 5 Laminated body 6 Base material 7 Fixed type 8 Movable type
───────────────────────────────────────────────────── フロントページの続き (72)発明者 柘植 元基 愛知県刈谷市豊田町１丁目１番地 豊田 紡織株式会社内 (72)発明者 安達 久徳 愛知県刈谷市豊田町１丁目１番地 豊田 紡織株式会社内 (72)発明者 川瀬 敏紀 愛知県刈谷市豊田町１丁目１番地 豊田 紡織株式会社内 (72)発明者 戸高 信彦 愛知県豊田市トヨタ町１番地 トヨタ自 動車株式会社内 (72)発明者 竹田 長秀 愛知県豊田市トヨタ町１番地 トヨタ自 動車株式会社内 (72)発明者 宮原 秀典 愛知県豊田市トヨタ町１番地 トヨタ自 動車株式会社内 (56)参考文献 特開 昭60−212342（ＪＰ，Ａ) 特開 平９−94845（ＪＰ，Ａ) 特開 平５−124052（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 1/00 - 35/00 B29C 45/14 B60R 13/02 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Motoki Tsuge 1-1-1, Toyotamachi, Kariya, Aichi Prefecture Inside Toyota Boshoku Corporation (72) Inventor Hisanori 1-1-1, Toyotamachi, Kariya, Aichi Prefecture Toyota Boshoku Corporation In-company (72) Inventor Toshiki Kawase 1-1-1 Toyota-cho, Kariya, Aichi Prefecture Inside Toyota Boshoku Corporation (72) Inventor Nobuhiko Todaka 1-Toyota-cho, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation (72) Inventor Nagahide Takeda 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation (72) Inventor Hidenori Miyahara 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation (56) References JP-A-60-212342 (JP) , A) JP-A-9-94845 (JP, A) JP-A-5-124052 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B32B 1/00-35/00 B29C 45/14 B60R 13/02
Claims (1)
なる積層体に対し、そのバリア材側に基材樹脂を射出成
形して一体化させた内装材であって、 前記バリア材が、前記基材樹脂よりも高融点で繊維長が
１００ｍｍ以下である短繊維を抄紙法により積層し水流
交絡させた、目付が６０〜２００ｇ／ｍ2である不織布
シートを以て構成されていることを特徴とする内装材。(57) [Claims 1] An interior material obtained by injection molding a base resin onto a barrier material side of a laminate comprising a skin material, a cushion material, and a barrier material, and integrating them. The barrier material is constituted by a nonwoven fabric sheet having a basis weight of 60 to 200 g / m 2 , in which short fibers having a melting point higher than that of the base resin and having a fiber length of 100 mm or less are laminated and hydroentangled by a papermaking method. An interior material characterized by being made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28210698A JP3472157B2 (en) | 1998-10-05 | 1998-10-05 | Interior materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28210698A JP3472157B2 (en) | 1998-10-05 | 1998-10-05 | Interior materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000108233A JP2000108233A (en) | 2000-04-18 |
| JP3472157B2 true JP3472157B2 (en) | 2003-12-02 |
Family
ID=17648212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28210698A Expired - Fee Related JP3472157B2 (en) | 1998-10-05 | 1998-10-05 | Interior materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3472157B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002115160A (en) * | 2000-10-05 | 2002-04-19 | Asahi Kasei Corp | Wet type nonwoven fabric for packing material |
| DE10126702B4 (en) * | 2001-05-31 | 2005-08-18 | Carl Freudenberg Kg | Process for the production of interior trim parts |
| FR2839986B1 (en) * | 2002-05-21 | 2004-08-20 | Chomarat Composites | FIBROUS REINFORCEMENT WITH BARRIER FUNCTION FOR PRODUCING COMPOSITE PIECES AND COMPOSITE PIECES USING THE SAME |
| JP4798948B2 (en) * | 2003-12-24 | 2011-10-19 | トヨタ紡織株式会社 | Automotive interior materials |
| JP2006159872A (en) * | 2004-12-10 | 2006-06-22 | Kasai Kogyo Co Ltd | Interior component for automobile |
| JP2008230037A (en) * | 2007-03-20 | 2008-10-02 | Polymatech Co Ltd | Decorative sheet, decorative molded object using decorative sheet and manufacturing method of decorative molded object |
| JP2010094990A (en) * | 2008-09-22 | 2010-04-30 | Nagoya Oil Chem Co Ltd | Non-permeable skin material, molded sheet material, and method of manufacturing the molded sheet material |
-
1998
- 1998-10-05 JP JP28210698A patent/JP3472157B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000108233A (en) | 2000-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2581358B2 (en) | Laminated molded article and method for producing the same | |
| CN101970227B (en) | Skin material for skin-integrated foam molding | |
| JP3472157B2 (en) | Interior materials | |
| JP2990207B2 (en) | Reinforcing base fabric for urethane foam molding, method for producing the same, and product | |
| JP2990208B2 (en) | Urethane foam molding reinforcing material having abnormal noise preventing ability, method for producing the same, and product thereof | |
| JP2000313096A (en) | Multilayered molded article and production thereof | |
| JP2005288873A (en) | Reinforcing material used for foam molding of urethane resin and molded article of urethane foam molding with reinforcing material | |
| JPH06136651A (en) | Covering material for expansion molding | |
| KR100553957B1 (en) | Wallpaper for automobile and manufacturing method | |
| JP4117541B2 (en) | Reinforcing material for foam molding | |
| JP4638634B2 (en) | Skin material and integral foam molding | |
| JP2010064361A (en) | Sound absorbing material component, sound absorbing material and manufacturing method of sound absorbing material | |
| JP2000313080A (en) | Urethane foamed molded article and production thereof | |
| JPS63162350A (en) | Carpet for automobile | |
| JP4842048B2 (en) | Composite sheet and seat pad reinforcement | |
| JP2000313022A (en) | Production of multilayered molded product | |
| JP4450708B2 (en) | Monolithic skin material | |
| JPH0474472B2 (en) | ||
| JP2000280388A (en) | Laminated skin material, skin integrated molded article using the same and production thereof | |
| JPH0434920B2 (en) | ||
| DE10124138A1 (en) | Automotive door or facia lining or facing material has intermediate layer of voluminous, compressive-elastic polymer fleece material with a vertical fibre array | |
| JP4798948B2 (en) | Automotive interior materials | |
| JP2843616B2 (en) | Cushion product and manufacturing method thereof | |
| JP3071679B2 (en) | Composite skin material | |
| JPS621816B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070912 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080912 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090912 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100912 Year of fee payment: 7 |
|
| LAPS | Cancellation because of no payment of annual fees |