JP2611422B2 - Foam molded product and its reinforcing material base fabric - Google Patents
Foam molded product and its reinforcing material base fabricInfo
- Publication number
- JP2611422B2 JP2611422B2 JP1082006A JP8200689A JP2611422B2 JP 2611422 B2 JP2611422 B2 JP 2611422B2 JP 1082006 A JP1082006 A JP 1082006A JP 8200689 A JP8200689 A JP 8200689A JP 2611422 B2 JP2611422 B2 JP 2611422B2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing material
- foam molded
- layer
- material base
- base fabric
- 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
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は車両用シート等に用いられる発泡ポリウレタ
ンなどの発泡成形品およびその発泡成形用補強材基布に
関するものである。Description: TECHNICAL FIELD The present invention relates to a foam molded product such as foamed polyurethane used for a vehicle seat and the like, and a reinforcing material base fabric for the foam molded product.
車両用シート等のクッション材として用いられる軟質
の発泡ポリウレタンなどの発泡成形品は、車両用シート
等のクッション材として用いる場合、その下部に取付け
られるコイルばねの押圧力を有効に受けて損傷すること
がなく、かつ剛性を持たせてクッション性に張りを付与
するように、底部に補強材が取付けられている。Foam molded products such as soft polyurethane foam used as cushioning material for vehicle seats, etc., when used as cushioning material for vehicle seats, etc., are effectively damaged by the pressing force of the coil spring attached to the lower part. A reinforcing material is attached to the bottom so as to provide rigidity and to provide cushioning with tension.
従来このような補強材として寒冷紗とスラブウレタン
を用い、発泡成形に際しては成形品の形状と同形状の型
面を有する発泡釜の型面に接するようにスラブウレタン
を設置し、その内側に寒冷紗を設置してウレタン液を注
入し、加熱加圧により発泡させて成形している。この場
合寒冷紗は補強材としての機能を有するが、スラブウレ
タンも剛性を付与し、かつ発泡釜の空気抜孔の閉塞を防
止する。しかしながら、このような寒冷紗とスラブウレ
タンのみでは剛性不足で、ワイヤーを充填する必要があ
り、また作業が繁雑であるという問題点がある。Conventionally, cold gauze and slab urethane are used as such reinforcing materials, and at the time of foam molding, slab urethane is installed so as to be in contact with the mold surface of a foaming pot having a mold surface of the same shape as the molded product, and the cold gauze is provided inside the slab urethane. A urethane liquid is injected and foamed by heating and pressing to form. In this case, the cold gauze has a function as a reinforcing material, but the slab urethane also provides rigidity and prevents the air vent of the foaming pot from being blocked. However, such a cold gauze and slab urethane alone are insufficient in rigidity, so that it is necessary to fill a wire, and the operation is complicated.
このような点を改善するために、目付10〜30g/m2の薄
く緻密な層と、目付40〜100g/m2の粗で嵩高な層とを一
体化した不織布からなる車両用シートのウレタン発泡成
形用補強材基布が提案されている（実公昭62−26193
号）。しかしながら、このような２層の不織布を一体化
するのは繁雑な作業を必要とし、また単に２層を一体化
しただけではウレタン液の通過による空気抜孔の閉塞を
防止できず、また２層の中間にウレタン液の通過を遮断
する接着剤層を形成すると、空気の通過も阻止されて、
不織布へのウレタン液の浸透も生じず、補強材としての
機能が劣るという問題点があった。To improve this point, basis weight and 10 to 30 g / m 2 thin dense layer, a urethane of a vehicle seat comprising a nonwoven fabric formed by integrating the bulky layer in the coarse of basis weight 40 to 100 g / m 2 A reinforcing material base fabric for foam molding has been proposed (J. 62-26193)
issue). However, integrating such a two-layer nonwoven fabric requires a complicated operation, and simply integrating the two layers does not prevent blocking of the air vent hole due to the passage of the urethane liquid. If an adhesive layer that blocks the passage of urethane liquid is formed in the middle, the passage of air is also blocked,
There is a problem that the urethane liquid does not penetrate into the nonwoven fabric and the function as a reinforcing material is inferior.
本発明の目的は、上記のような問題点を解決するた
め、発泡成形に際して空気の通過を阻止することなく、
樹脂液の通過を阻止して空気抜孔の閉塞を防止し、かつ
樹脂液を吸収して発泡成形物に適当の剛性を付与するこ
とができる発泡成形品およびその補強材基布を提供する
ことである。The object of the present invention is to solve the above-described problems without preventing the passage of air during foam molding,
By providing a foam molded article which can prevent the passage of the resin liquid to prevent clogging of the air vent holes and absorb the resin liquid to impart appropriate rigidity to the foam molded article, and a reinforcing material base cloth thereof. is there.
本発明は次の発泡成形品およびその補強材基布であ
る。The present invention relates to the following foam molded article and its reinforcing material base fabric.
（１）目付110〜800g/m2、繊維径１〜16dの高目付不織
布の一方の面側に樹脂液の通過を阻止する圧着層を形成
した補強材基布と、 この補強材基布の圧着層と反対側の面側に形成された
含浸層と、 この含浸層の外側に一体的に積層された発泡成形体と からなることを特徴とする発泡成形品。(1) A reinforcing material base fabric in which a pressure-bonded layer for preventing the passage of resin liquid is formed on one surface side of a high-weight nonwoven fabric having a basis weight of 110 to 800 g / m 2 and a fiber diameter of 1 to 16 d; A foam molded article comprising: an impregnated layer formed on a surface opposite to the pressure-bonding layer; and a foam molded article integrally laminated outside the impregnated layer.
（２）目付110〜800g/m2、繊維径１〜16dの高目付不織
布からなり、一方の面側に樹脂液の通過を阻止する圧着
層を有することを特徴とする発泡成形用補強材基布。(2) A reinforcing material base for foam molding, comprising a non-woven fabric having a basis weight of 110 to 800 g / m 2 and a fiber diameter of 1 to 16 d, and having a pressure-bonded layer on one surface side for preventing resin liquid from passing therethrough. cloth.
本発明において発泡成形を行う材料は、車両用シート
その他の用途に用いられる発泡成形物を形成する発泡性
材料であって、発泡ポリウレタンフォームを形成するウ
レタン液などの発泡性樹脂液があげられるが、これに限
定されない。In the present invention, the material for foam molding is a foamable material for forming a foamed molded product used for vehicle seats and other uses, and examples thereof include a foamable resin solution such as a urethane solution for forming a foamed polyurethane foam. , But is not limited to this.
本発明の補強材基布に用いる高目付不織布を構成する
繊維は、ポリアミド（ナイロン）、ポリエステル、ポリ
プロピレンなど任意の材質からなるものが使用できる
が、熱可塑性のものが好ましい。また繊維の形態は、長
繊維、短繊維、あるいはこれらの組合せなど、任意のも
のが使用できる。As the fibers constituting the high-weight nonwoven fabric used for the reinforcing material base fabric of the present invention, fibers made of any material such as polyamide (nylon), polyester, and polypropylene can be used, and thermoplastic fibers are preferable. The fiber may be in any form such as a long fiber, a short fiber, or a combination thereof.
本発明の補強材基布は、これらの繊維から形成される
目付110〜800g/m2、好ましくは200〜400g/m2および繊維
径１〜16d、好ましくは８〜15dの高目付不織布の一方の
面側に樹脂液の通過を阻止する圧着層を形成したもので
ある。この場合、高目付不織布の一方の面、すなわちウ
レタン液等の発泡性樹脂液が浸透する側の反対側の面に
圧着層が形成される。The reinforcing material base fabric of the present invention is formed of these fibers, and has a basis weight of 110 to 800 g / m 2 , preferably 200 to 400 g / m 2 and a fiber diameter of 1 to 16 d, preferably 8 to 15 d. Is formed with a pressure-bonded layer for preventing the passage of the resin liquid on the side of the surface. In this case, the pressure-bonded layer is formed on one surface of the high-grain nonwoven fabric, that is, the surface on the side opposite to the side where the foamable resin liquid such as urethane liquid permeates.
本発明の発泡成形品は上記の補強材基布の圧着層と反
対側の面側に含浸層を形成し、さらにその外側に発泡成
形体を一体的に形成したものである。この発泡成形品
は、補強材基布の圧着層と反対側から樹脂液を導入して
発泡釜の型内で発泡させ、補強材基布の圧着層と反対側
の面側に含浸層を形成し、その外側に発泡成形体を一体
的に形成させることにより製造される。The foam molded article of the present invention is obtained by forming an impregnated layer on the surface opposite to the pressure-bonded layer of the above-mentioned reinforcing material base fabric, and further integrally forming a foam molded article on the outside thereof. In this foam molded product, a resin liquid is introduced from the side opposite to the pressure-bonding layer of the reinforcing material base cloth and foamed in the mold of the foaming pot, and an impregnated layer is formed on the surface side opposite to the pressure-bonding layer of the reinforcing material base cloth. It is manufactured by integrally forming a foam molded body on the outside.
以下、本発明を図面の実施例により説明する。 Hereinafter, the present invention will be described with reference to embodiments of the drawings.
第１図は圧着層を形成した場合、第２図は圧着層を形
成しない場合を示し、それぞれ（Ａ）は補強材基布、
（Ｂ）は発泡成形品の断面図を示す。図において、１は
補強材基布であり、第１図では高目付不織布２の一方の
面に圧着層３が形成されているが、第２図では高目付不
織布２の均一な層からなり、圧着層３は形成されていな
い。FIG. 1 shows a case where a pressure bonding layer is formed, and FIG. 2 shows a case where no pressure bonding layer is formed.
(B) shows a sectional view of the foam molded article. In FIG. 1, reference numeral 1 denotes a reinforcing material base fabric, and in FIG. 1, a press-bonded layer 3 is formed on one surface of a high-weight nonwoven fabric 2, but in FIG. The pressure bonding layer 3 is not formed.
第１図の圧着層３は樹脂液の通過を阻止するように、
不織布を熱圧着することにより形成され、第２図のよう
な均一な高目付不織布２の一方の面にエンボス加工また
はミラー加工を施すことにより形成することができる。
片面エンボス加工またはミラー加工は、熱可塑性繊維か
らなる不織布の場合、高温のエンボス加工ロールまたは
ミラー加工ロールと、低温の通常のロール間に、第２図
の高目付不織布２を通して圧縮し、片面のみを熱圧着す
ることにより形成される。熱可塑性でない繊維からなる
不織布の場合は、片面に接着剤を含浸させてエンボス加
工またはミラー加工を行うことにより、圧着層３を形成
することができる。The pressure-bonding layer 3 of FIG.
The nonwoven fabric is formed by thermocompression bonding, and can be formed by embossing or mirroring one surface of a uniform high-weight nonwoven fabric 2 as shown in FIG.
The one-sided embossing or mirroring is performed, in the case of a nonwoven fabric made of thermoplastic fiber, by compressing between the high-temperature embossing roll or the mirroring roll and the low-temperature normal roll through the high-grain nonwoven fabric 2 in FIG. Is formed by thermocompression bonding. In the case of a non-woven fabric made of non-thermoplastic fibers, the pressure-bonded layer 3 can be formed by impregnating one side with an adhesive and performing embossing or mirror processing.
上記の補強材基布１は、不織布２の一方の面、第１図
では圧着層３を形成しない面から、Ｘ、Ｙ方向にウレタ
ン液等の発泡性樹脂液を含浸させて発泡成形を行う。発
泡成形は、発泡釜の型面４に、補強材基布１の一方の
面、第１図では圧着層３が接するように設置し、他の型
面５との間のキャビティ６に樹脂液を導入して補強材基
布１に含浸させ、加熱加圧発泡させて、発泡成形体７を
形成する。これにより不織布２の圧着層３を形成しない
面側に樹脂液の含浸層８を形成し、さらにその外側に発
泡成形体７を形成する。The above-described reinforcing material base fabric 1 is subjected to foam molding by impregnating a foaming resin liquid such as a urethane liquid in the X and Y directions from one surface of the nonwoven fabric 2, in FIG. . In the foam molding, the resin liquid is placed in the cavity 6 between the mold surface 4 of the foaming kettle and one surface of the reinforcing material base fabric 1, in FIG. To form a foam molded body 7 by impregnating the reinforcing material base fabric 1 and foaming by heating and pressurizing. Thus, the resin liquid impregnated layer 8 is formed on the non-woven fabric 2 on the side where the pressure-bonded layer 3 is not formed, and the foam molded body 7 is formed on the outside thereof.
このときキャビティ６内の空気は基布１を通して空気
抜孔から排出されるが、樹脂液の含浸層８は基布１が高
目付であるため、基布１の途中、第１図の場合は圧着層
３で止まり、基布１を通過して空気抜孔を閉塞すること
はない。そして含浸層８の形成により発泡成形体７の面
剛性が高まり、自動車シート用クッション材として用い
た場合、コイルばねの押圧力を有効に支持して損傷する
ことはない。At this time, the air in the cavity 6 is exhausted from the air vent through the base cloth 1, but the resin liquid impregnated layer 8 is pressurized in the middle of the base cloth 1 in the case of FIG. It does not stop at the layer 3 and does not pass through the base fabric 1 to close the air vent. The formation of the impregnated layer 8 increases the surface rigidity of the foam molded body 7, and when used as a cushioning material for an automobile seat, effectively supports the pressing force of the coil spring and does not cause damage.
なお、以上の説明において、補強材基布を用いる発泡
成形は、自動車シートの発泡成形に適しているが、家
具、事務用椅子など、他の用途の発泡成形体の成形にも
適用することができる。In the above description, foam molding using a reinforcing material base cloth is suitable for foam molding of an automobile seat, but may be applied to molding of a foam molded article for other uses such as furniture and office chairs. it can.
本発明によれば、一方の面側に圧着層を形成した高目
付不織布を用いることにより、空気抜孔の閉塞がなく、
均一な発泡成形を行うとともに、面剛性を向上させた発
泡成形品を得ることができる。また高目付不織布の片面
に圧着層を形成することにより、樹脂液の含浸を基布の
途中で確実に止めて空気抜孔の閉塞を防止するととも
に、樹脂液の含浸度合を調整し、密な発泡層を形成して
剛性をさらに向上させることができる。そしてこれによ
り、場所によって異なる硬度の発泡成形を行うことがで
きるほか、製造工程を簡略化でき、剛性を付与するため
のワイヤーの使用本数を少なくすることができる。According to the present invention, by using a nonwoven fabric with a high weight permeation formed with a pressure-bonded layer on one surface side, there is no blockage of the air vent hole,
A uniform molded article can be obtained, and a foam molded article with improved surface rigidity can be obtained. In addition, by forming a pressure-bonded layer on one side of the high-grain nonwoven fabric, the impregnation of the resin liquid is reliably stopped in the middle of the base cloth to prevent clogging of air vent holes, and the degree of impregnation of the resin liquid is adjusted to achieve dense foaming. A layer can be formed to further improve rigidity. Thus, foam molding with different hardness can be performed depending on the location, the manufacturing process can be simplified, and the number of wires used for imparting rigidity can be reduced.
図面は実施例を示し、第１図は圧着層を形成した場合、
第２図は圧着層を形成しない場合を示し、それぞれ
（Ａ）は補強材基布、（Ｂ）は発泡成形品の断面図を示
す。 各図中、同一符号は同一または相当部分を示し、１は補
強材基布、２は高目付不織布、３は圧着層、４、５は型
面、７は発泡成形体、８は含浸層である。The drawings show an embodiment, and FIG. 1 shows a case where a pressure bonding layer is formed.
FIG. 2 shows a case where a pressure-bonded layer is not formed. FIG. 2 (A) is a cross-sectional view of a reinforcing material base fabric, and FIG. In the drawings, the same reference numerals indicate the same or corresponding portions, 1 is a reinforcing material base fabric, 2 is a high-weight nonwoven fabric, 3 is a pressure-bonded layer, 4 and 5 are mold surfaces, 7 is a foam molded product, and 8 is an impregnated layer. is there.
Claims (2)
付不織布の一方の面側に樹脂液の通過を阻止する圧着層
を形成した補強材基布と、 この補強材基布の圧着層と反対側の面側に形成された含
浸層と、 この含浸層の外側に一体的に積層された発泡成形体と からなることを特徴とする発泡成形品。1. A reinforcing material base fabric having a press-bonded layer formed on one surface side of a high-weight nonwoven fabric having a basis weight of 110 to 800 g / m 2 and a fiber diameter of 1 to 16 d, wherein A foam molded article comprising: an impregnated layer formed on the surface of the cloth opposite to the pressure-bonded layer; and a foam molded article integrally laminated outside the impregnated layer.
付不織布からなり、一方の面側に樹脂液の通過を阻止す
る圧着層を有することを特徴とする発泡成形用補強材基
布。2. A basis weight 110~800g / m 2, made of a high basis weight non-woven fiber diameter 1～16D, reinforced foam molding, characterized in having a crimp layer for blocking the passage of liquid resin on one side Lumber base cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1082006A JP2611422B2 (en) | 1989-03-31 | 1989-03-31 | Foam molded product and its reinforcing material base fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1082006A JP2611422B2 (en) | 1989-03-31 | 1989-03-31 | Foam molded product and its reinforcing material base fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02258332A JPH02258332A (en) | 1990-10-19 |
| JP2611422B2 true JP2611422B2 (en) | 1997-05-21 |
Family
ID=13762441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1082006A Expired - Fee Related JP2611422B2 (en) | 1989-03-31 | 1989-03-31 | Foam molded product and its reinforcing material base fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2611422B2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2611706B1 (en) * | 1987-03-05 | 1989-06-16 | Rhone Poulenc Chimie | PROCESS FOR THE CHLORINATION OF NITROPHENOLS |
| FR2611701B1 (en) * | 1987-03-05 | 1989-06-16 | Rhone Poulenc Chimie | PROCESS FOR THE CHLORINATION OF PHENOLIC COMPOUNDS |
| WO2012008169A1 (en) | 2010-07-13 | 2012-01-19 | 三井化学株式会社 | Nonwoven fabric laminate for expansion molding |
| JP5425352B1 (en) | 2012-05-22 | 2014-02-26 | 三井化学株式会社 | Non-woven fabric laminate for foam molding, urethane foam molded product composite using the nonwoven fabric laminate, and method for producing non-woven fabric laminate for foam molding |
| CN105518196B (en) | 2013-09-06 | 2017-02-08 | 三井化学株式会社 | Nonwoven fabric laminate for foaming molding, method for producing nonwoven fabric laminate for foaming molding, urethane foaming molding composite, vehicle seat, and chair |
| WO2016035732A1 (en) * | 2014-09-01 | 2016-03-10 | 東洋紡株式会社 | Non-woven fabric for reinforcing expansion-molded articles |
| JP6372269B2 (en) * | 2014-09-12 | 2018-08-15 | 東洋紡株式会社 | Nonwoven fabric for reinforcing foam molded products |
| US20170282490A1 (en) * | 2014-09-01 | 2017-10-05 | Toyobo Co., Ltd. | Nonwovens for reinforcing foam-molded article |
| JP6365875B2 (en) * | 2014-09-01 | 2018-08-01 | 東洋紡株式会社 | Nonwoven fabric for reinforcing foam molded products |
| JP6409506B2 (en) * | 2014-09-01 | 2018-10-24 | 東洋紡株式会社 | Nonwoven fabric for reinforcing foam molded products |
| JP6651904B2 (en) * | 2016-02-29 | 2020-02-19 | 東洋紡株式会社 | Non-woven fabric for reinforcing foam molded products |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2557864B2 (en) * | 1986-12-26 | 1996-11-27 | 旭化成工業株式会社 | Molding laminate sheet and manufacturing method thereof |
| JP2514193B2 (en) * | 1986-12-26 | 1996-07-10 | 旭化成工業株式会社 | Moldable laminated sheet |
| JP2520888B2 (en) * | 1986-12-26 | 1996-07-31 | 旭化成工業株式会社 | Laminate sheet for thermoforming and method for producing the same |
| JPH0546522Y2 (en) * | 1987-05-28 | 1993-12-06 |
-
1989
- 1989-03-31 JP JP1082006A patent/JP2611422B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02258332A (en) | 1990-10-19 |
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