JP2005261581A - Sheet material for seat - Google Patents

Sheet material for seat Download PDF

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JP2005261581A
JP2005261581A JP2004076706A JP2004076706A JP2005261581A JP 2005261581 A JP2005261581 A JP 2005261581A JP 2004076706 A JP2004076706 A JP 2004076706A JP 2004076706 A JP2004076706 A JP 2004076706A JP 2005261581 A JP2005261581 A JP 2005261581A
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seat
skin material
concavo
polyurethane foam
flexible polyurethane
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JP4557135B2 (en
JP2005261581A5 (en
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Takashi Oi
隆志 大井
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Achilles Corp
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Achilles Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet material for a seat that articulate concavities and convexities are formed with the surface of concavities frosted without any gloss. <P>SOLUTION: The sheet material for seat 20 is made of (a) a skin material 23 alone, or a laminate made of (a) a skin material 23 and (b) a flexible polyurethane foam 24, or a laminated body made of (a) a skin material 23, (b) a flexible polyurethane foam 24, and (c) an underlining 25. (a) The skin material 23 is made of a synthetic fabric or a laminate made of a synthetic fabric layer and a synthetic resin layer. (b) The flexible polyurethane foam 24 has 1-15 mm thickness. The surface side of the skin material of the material for seat 20 is provided with concavities and convexities 21, 22 formed by a heat press mold and at least the bottom surfaces of the convexities 22 among the concavities and convexities 21, 22 are provided with minute concavities and convexities. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、自動車や鉄道車両などの車両の座席シート、ソファー、座椅子などに使用される座席用シート材として好適に用いられる、凹凸模様を有する座席用シート材に関するものである。   The present invention relates to a seat material having a concavo-convex pattern, which is preferably used as a seat material for a seat used in a vehicle seat such as an automobile or a railway vehicle, a sofa, or a seat.

近年、自動車の座席用シート材としては、意匠性を高めるために表面に凹凸模様を施したものが要求されるようになってきている。
そこで、凹凸模様を深くはっきりと形成させることができると共に、長期間使用しても凹凸形状の変形の生じない表皮材も開示されている（例えば、特許文献１）。
しかしながら、上記のようなシート材は、熱プレスによって凹凸模様を形成しており、凹部の表面が光沢をもつが、この光沢が意匠性を損なう場合がある。
表面の光沢をなくす方法としては、従来は、プレス時にクリアランスをとって、すなわち、上下の型の間に隙間をもたせてプレスしていた。しかしながら、この方法でプレスすると、熱プレスに時間がかかるため、生産効率が悪く、また、くっきりした凹凸がでない、光沢もあまり低減できないという問題があった。
特開２００３−３２６５９８号公報 In recent years, as a seat material for a seat of an automobile, a material having a concavo-convex pattern on the surface has been demanded in order to improve design properties.
Therefore, a skin material that can form a concavo-convex pattern deeply and clearly and does not cause deformation of the concavo-convex shape even when used for a long time is disclosed (for example, Patent Document 1).
However, the sheet material as described above has a concavo-convex pattern formed by hot pressing, and the surface of the recess has gloss, but this gloss may impair the design.
As a method for eliminating the glossiness of the surface, conventionally, a clearance is provided during pressing, that is, pressing is performed with a gap between the upper and lower molds. However, when this method is used, it takes time to perform hot pressing, so that there is a problem that production efficiency is poor, there are no sharp irregularities, and gloss cannot be reduced much.
JP 2003-326598 A

本発明は、凹凸がはっきり形成され、かつ、凹部の表面が光沢を持たずつや消しである座席用シート材を提供することにある。   It is an object of the present invention to provide a seat material for a seat in which unevenness is clearly formed and the surface of the recess has a glossy finish.

本発明は、（ａ）表皮材単体、もしくは（ａ）表皮材と（ｂ）軟質ポリウレタンフォームの積層体、もしくは（ａ）表皮材と（ｂ）軟質ポリウレタンフォームと（ｃ）裏布の積層体である座席用シート材において、表皮材が、合成樹脂繊維からなる布帛、または合成樹脂繊維からなる布帛層と合成樹脂層の積層体からなり、軟質ポリウレタンフォームが厚さが１〜１５ｍｍであり、該座席用シート材の表皮材の表面側には、熱プレス成形によって成型された凹凸形状を有し、かつ少なくとも該凹凸形状の凹部底面に微細な凹凸を有することを特徴とする座席用シート材に関する。   The present invention includes (a) a single skin material, or (a) a laminate of a skin material and (b) a flexible polyurethane foam, or (a) a skin material, (b) a flexible polyurethane foam, and (c) a laminate of a backing fabric. In the seat material for seats, the skin material is made of a cloth made of synthetic resin fibers, or a laminate of a cloth layer made of synthetic resin fibers and a synthetic resin layer, and the flexible polyurethane foam has a thickness of 1 to 15 mm, The seat material for a seat, characterized in that on the surface side of the skin material of the seat material for seats, there is a concavo-convex shape formed by hot press molding, and at least a concavo-convex shape is formed on the bottom surface of the concave portion of the concavo-convex shape. About.

本発明によれば、凹凸がはっきり形成され、かつ、凹部の表面が光沢をもたずつや消しであり、意匠性の高い座席用シート材を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the unevenness | corrugation is formed clearly and the surface of a recessed part is mattly erased, and can provide the seat material for seats with high designability.

本発明において、（ａ）表皮材として用いられる合成繊維としては、ポリエステル系、ポリアミド系、ポリアクリル系、ポリプロピレン系繊維、レーヨンなどあるいはこれらの混紡糸が挙げられ、特に限定されるものではない。
このような合成繊維より得られる布帛としては、織布、編布、不織布などどのようなものでもよい。 In the present invention, (a) the synthetic fibers used as the skin material include polyester-based, polyamide-based, polyacrylic-based, polypropylene-based fibers, rayon, and the like, or mixed yarns thereof, and are not particularly limited.
As the fabric obtained from such synthetic fibers, any fabric such as woven fabric, knitted fabric, and non-woven fabric may be used.

このような合成繊維より得られる布帛は、合成樹脂層と積層して、積層体（レザーや合成皮革など）として用いてもよい。
このような合成樹脂としては、ポリウレタン樹脂やポリ塩化ビニル樹脂などが挙げられる。 Fabrics obtained from such synthetic fibers may be laminated with a synthetic resin layer and used as a laminate (leather, synthetic leather, etc.).
Examples of such synthetic resins include polyurethane resins and polyvinyl chloride resins.

本発明において、（ｂ）軟質ポリウレタンフォームとしては、厚さ１〜１５ｍｍのものを用いる。厚さが１ｍｍ未満では凹凸意匠性が乏しくなり、一方、１５ｍｍを超えると凹部が硬くなり風合いを損ねる結果となる。中でも、（ｂ）軟質ポリウレタンフォームの厚さは、１〜８ｍｍに設定するのが好ましい。   In the present invention, (b) a flexible polyurethane foam having a thickness of 1 to 15 mm is used. If the thickness is less than 1 mm, the uneven design is poor, while if it exceeds 15 mm, the recess becomes hard and the texture is impaired. Especially, it is preferable to set the thickness of (b) flexible polyurethane foam to 1-8 mm.

また、（ｂ）軟質ポリウレタンフォームとしては、硬さ８０〜１５０Ｎのものを用いることが好ましい。１５０Ｎを超えると座席用シート材のクッション性が低下し、一方、８０Ｎ未満では、熱プレス成形時に全体厚みが大きく低減されるので、深い凹凸模様を形成するのが困難になり、好ましくない。なお、前記「硬さ」とは、ＪＩＳ Ｋ６４００（軟質ウレタンフォーム試験方法）：1997の６．３のＡ法に基づいて測定された硬さである。   Moreover, it is preferable to use a (b) flexible polyurethane foam having a hardness of 80 to 150 N. If it exceeds 150 N, the cushioning property of the seat material for seats is lowered. On the other hand, if it is less than 80 N, the overall thickness is greatly reduced at the time of hot press molding, so that it is difficult to form a deep uneven pattern, which is not preferable. The “hardness” is a hardness measured based on JIS K6400 (flexible urethane foam test method): A method of 6.3 of 1997.

（ｃ）裏布としては、ポリエステル、ポリウレタン、ナイロンなど一般的に使用される材質の繊維の、トリコット、不織布などの生地を用いることができる。この裏布を用いることによって、熱プレス時に型あるいは熱盤への粘着を防ぎ、縫製時にミシンの滑りをよくすることができる。   (C) As the back fabric, a fabric such as tricot or non-woven fabric made of a commonly used material such as polyester, polyurethane, nylon or the like can be used. By using this backing cloth, it is possible to prevent sticking to the mold or hot platen at the time of hot pressing, and to improve the sliding of the sewing machine at the time of sewing.

本発明において、（ａ）表皮材と（ｂ）軟質ポリウレタンフォーム、または（ａ）表皮材、（ｂ）軟質ポリウレタンフォーム、および（ｃ）裏布の積層一体化は、接着剤を用いて行ってもよいし、あるいはフレームラミネート法により行ってもよい。   In the present invention, (a) the skin material and (b) the flexible polyurethane foam, or (a) the skin material, (b) the flexible polyurethane foam, and (c) the lamination integration of the backing cloth is performed using an adhesive. Alternatively, it may be performed by a frame laminating method.

本発明の座席用シート材は、上記のようなシートの表面に、熱プレス成形によって形成された凹凸形状を有している。そして、さらに、凹部底面には、微細な凹凸があり、これにより、凹部底面は光沢のない、つや消し状となっている。微細な凹凸は、凹部底面だけではなく、凸部にあってもよい。   The seat material for seats of the present invention has an uneven shape formed by hot press molding on the surface of the sheet as described above. Furthermore, there are fine irregularities on the bottom surface of the recess, and the bottom surface of the recess has a matte shape with no gloss. The fine unevenness may be present not only on the bottom surface of the recess but also on the protrusion.

凹部底面に光沢のない、つや消し表面を形成するには、熱プレス成形型の型押し部の表面に微細な凹凸をつけたもので、熱プレスすればよい。
図１に、本発明の用いられる熱プレス成形型の１例の断面図を示す。この成形型１０は金属素材からなり、図１に示すように、成形型１０の一方の面（成形面）には同一形状の型押部１０ａ……が多数個突設されている。この型押部１０ａの表面は、微細な凹凸を有している。このような熱プレス成形型で、シートを成形すると、前記型押部１０ａ……によって熱プレスされた部位が窪んだ状態に成形されて、底面の表面が光沢のない凹部を形成する。一方、多数個の非型押部１０ｂ……はシートの凸部を形成する。 In order to form a matte surface with no gloss on the bottom surface of the recess, the surface of the embossed portion of the hot press mold is provided with fine irregularities and may be hot pressed.
FIG. 1 shows a cross-sectional view of an example of a hot press mold used in the present invention. The molding die 10 is made of a metal material, and as shown in FIG. 1, a large number of mold pressing portions 10 a... Having the same shape project from one surface (molding surface) of the molding die 10. The surface of the embossed portion 10a has fine irregularities. When a sheet is formed with such a hot press mold, the portion pressed by the pressing portion 10a... Is formed in a depressed state, and the bottom surface has a dull recess. On the other hand, a large number of non-embossing portions 10b... Form a convex portion of the sheet.

熱プレス成形型に微細な凹凸をつけるには、粒子を吹きつけるサンドブラスト法を用いることが好ましい。サンドブラスト法を用いて得られたプレス成形型によれば、凹部の形状をくっきりと形成させることができる。
吹きつける粒子の材料としては、アルミニウムなどの金属粒子、ガラスビーズ、砂など、種々の硬質の粒子状のものが挙げることができるが、砂が好ましい。
吹きつける粒子の粒径により、座席用シート材の微細な凹凸を有する表面のつや消しの状態が異なる。この粒子の粒径としては、３０〜２００メッシュが好ましく、さらに好ましくは５０〜１２０メッシュである。粒子の粒径が３０メッシュ未満では、押部面積の小さい型への微細凹凸付与が難しくなり、一方、２００メッシュを超えると熱プレス成形型の表面の耐久性が悪くなったり、座席用シート材の光沢を消す効果が小さくなるため好ましくない。同じ粒径であっても、表皮材の材質、形状により、表面の状態は変わるので、粒径は、表皮材にあわせ適宜、選択される。
粒子を熱プレス成形型へ吹きつけるショット圧としては、５〜８ｋｇ／ｃｍ2が好ましい。 In order to give fine irregularities to the hot press mold, it is preferable to use a sandblasting method in which particles are sprayed. According to the press mold obtained by using the sandblast method, the shape of the recess can be clearly formed.
Examples of the material for the particles to be sprayed include various hard particles such as metal particles such as aluminum, glass beads, and sand. Sand is preferable.
Depending on the particle size of the particles to be sprayed, the matte state of the surface having fine irregularities of the seat material varies. The particle size of these particles is preferably 30 to 200 mesh, more preferably 50 to 120 mesh. If the particle size is less than 30 mesh, it becomes difficult to impart fine irregularities to a mold having a small pressing area. On the other hand, if the particle size exceeds 200 mesh, the durability of the surface of the hot press mold may deteriorate, This is not preferable because the effect of erasing the luster is reduced. Even if the particle size is the same, the surface condition varies depending on the material and shape of the skin material, and the particle size is appropriately selected according to the skin material.
The shot pressure blowing particles to hot pressing mold, 5~8kg / cm 2 is preferred.

また、熱プレス成形型への粒子の吹きつけは、熱プレス成形型切削加工後に行うことが好ましい。成形型を切削加工した時には、切削加工後にバリを取る必要があるが、切削加工前に粒子の吹きつけを行うと、このバリを取った部分は、鏡面になってしまう。その結果、熱プレス後のこの部分、すなわち、シート凹部の周辺部の表面が光沢のあるものになってしまう。
切削加工後にサンドブラストを行えば、バリ取りの必要がないので、金型凸部周辺の部分が鏡面になることはなく、金型凸部表面全体に微細な凹凸を有するのでこのような問題が起こらない。 Moreover, it is preferable to perform the spraying of the particles to the hot press mold after the hot press mold cutting. When the mold is cut, it is necessary to remove burrs after the cutting process. However, if particles are blown before the cutting process, the burred part becomes a mirror surface. As a result, this portion after hot pressing, that is, the surface of the peripheral portion of the sheet recess becomes glossy.
If sandblasting is performed after cutting, there is no need for deburring, so the part around the mold convex part does not become a mirror surface, and the entire surface of the mold convex part has fine irregularities, which causes such problems. Absent.

また、成形型１０の素材としては、一般にアルミニウム、真ちゅう、鉄などの金属素材が用いられるが、中でもアルミニウム素材（アルミニウム合金も含む）を用いるのが好ましい。これにより、凹凸模様をより一層深くはっきりと形成させることができるし、細かくて緻密な凹凸模様も深くはっきりと形成することが可能になる。また、光沢をなくすための微細な凹凸をはっきりと形成でき、光沢を消す効果が大きくなる。   Moreover, as a raw material of the shaping | molding die 10, metal materials, such as aluminum, brass, and iron, are generally used, However, It is preferable to use an aluminum raw material (aluminum alloy is also included) especially. As a result, the uneven pattern can be formed more deeply and clearly, and a fine and dense uneven pattern can also be formed deeply and clearly. Moreover, the fine unevenness | corrugation for eliminating gloss can be formed clearly, and the effect which erases gloss becomes large.

上記のようなプレス成形型を用い、図１に示すように、上下一対の上熱盤１１、下熱盤１２間に、（ａ）、（ｂ）、（ｃ）からなる積層体１３と、型押部１０ａ……が多数個突設された成形型１０とを、該型押部１０ａ……と積層体の表皮材（ａ）とが向き合う態様で配置して熱プレスすることにより、本発明の凹部がつや消しの座席用シート材を得ることができる。
ここで、熱プレスの際の加熱温度は１４０〜２００℃に設定することが好ましい。１４０℃未満では凹凸模様をくっきり鮮明に形成するのが困難になるし、光沢をなくすための微細な凹凸模様も鮮明に形成されないので、光沢を消す効果が小さくなる。一方、２００℃を超えると、表皮材の変質や変色の危険性がある。中でも、加熱温度は１５０〜１８５℃に設定するのが好ましい。 Using the press mold as described above, as shown in FIG. 1, between the upper and lower upper heating plates 11 and 12, a laminate 13 made of (a), (b), (c), The molding die 10 provided with a large number of mold pressing portions 10a... Is placed in such a manner that the mold pressing portions 10a... And the skin material (a) of the laminated body face each other. The seat material for a seat in which the concave portion of the invention is matte can be obtained.
Here, it is preferable to set the heating temperature at the time of hot press to 140-200 degreeC. If the temperature is less than 140 ° C., it is difficult to form a concavo-convex pattern clearly and clearly, and a fine concavo-convex pattern for eliminating gloss is not formed clearly, so the effect of erasing the gloss is reduced. On the other hand, when it exceeds 200 ° C., there is a risk of deterioration or discoloration of the skin material. Especially, it is preferable to set heating temperature to 150-185 degreeC.

また、熱プレス時の加圧圧力は２〜１５ｋｇ／ｃｍ2 に設定することが好ましい。前記下限値未満では、凹凸模様をくっきり鮮明に形成するのが困難になるし、光沢をなくすための微細な凹凸模様も鮮明に形成されないので、光沢を消す効果が小さくなる。一方前記上限値を超えると熱プレス成形時に全体厚みが大きく低減されて深い凹凸模様を形成するのが困難となり、微細な凹凸模様についても同様で、光沢を消す効果が小さくなる。中でも、加圧圧力は３〜１０ｋｇ／ｃｍ2 に設定するのが好ましい。 Moreover, it is preferable to set the pressurization pressure at the time of a hot press to 2-15 kg / cm < 2 >. If it is less than the lower limit value, it becomes difficult to form a concavo-convex pattern clearly and clearly, and a fine concavo-convex pattern for eliminating gloss is not formed clearly, so the effect of erasing the gloss becomes small. On the other hand, when the upper limit is exceeded, the overall thickness is greatly reduced during hot press molding, making it difficult to form a deep concavo-convex pattern. Especially, it is preferable to set a pressurization pressure to 3-10 kg / cm < 2 >.

また、熱プレス時間は、３０〜が低下する。一方、１５０秒を超え１５０秒に設定することが好ましい。３０秒未満では、凹凸模様をくっきり鮮明に形成し、かつ、表面につや消しのための微細凹凸模様を形成するのが困難になり、また、（ａ）表皮材と（ｂ）軟質ポリウレタンフォーム、（ｃ）裏布の一体化の強度が十分に得られなくなって耐久性ても効果の向上はもはや望めず、徒に生産効率を低下させるものとなる。   In addition, the hot press time decreases by 30 to. On the other hand, it is preferable to set it to 150 seconds exceeding 150 seconds. If it is less than 30 seconds, it becomes difficult to form a concavo-convex pattern clearly and to form a fine concavo-convex pattern for matting on the surface, and (a) a skin material and (b) a flexible polyurethane foam ( c) Even if the strength of integration of the backing cloth is not sufficiently obtained, the improvement of the effect can no longer be expected even if it is durable, and the production efficiency is naturally reduced.

前記熱プレスは、成形型１０の非型押部１０ｂ……が積層体１３の（ａ）表皮材に接触しない態様で行うのが好ましい。これにより、得られる積層体１３において。凸部と凹部の高低差をより大きくして凹凸模様を形成することができ、また接触しないことにより（ａ）表皮材の触感をそのまま維持することができて、これまでになかった優れた意匠性と斬新な風合いを付与できるものとなる。上記の凹凸模様の凸部と凹部の高低差は３〜１０ｍｍであることが好ましい。   The hot pressing is preferably performed in such a manner that the non-embossing portions 10b... Of the mold 10 do not contact the (a) skin material of the laminate 13. Thereby, in the laminated body 13 obtained. The height difference between the convex part and the concave part can be increased to form a concavo-convex pattern, and (a) the touch feeling of the skin material can be maintained as it is by not contacting it, and an excellent design that has never existed before It will be able to give sex and a novel texture. It is preferable that the height difference between the convex and concave portions of the concavo-convex pattern is 3 to 10 mm.

ところで、従来より、上記のように熱プレスによって凹凸模様を形成したものは、熱プレスした部分の合成樹脂または合成樹脂繊維が溶融し、硬い層を形成するため、曲面追従性が悪いという問題があった。特に、１つの凹部面積が２５ｍｍ2（５ｍｍ×５ｍｍ）を超えるような大きな凹部を有するものに関しては、曲面追従性が悪いために、座席シートをかぶせた場合に、歪がでるという問題があった。また、近年、バケット型シートなどのように、表材側が膨らんだ構造だけでなく、表材側がくぼんだような造形を有する、構造が複雑化した座席が現れており、これらの座席に対応できる座席用シート材が求められている。さらに、ソファーや座椅子などについても、複雑な形状やデザインの商品に対応できる座席用シート材が求められている。
本発明の座席用シート材は、熱プレスによって凹凸模様を形成したにも拘わらず、曲面追従性がよく、複雑な形状やデザインの商品にも使用することができる。 By the way, conventionally, those in which the concavo-convex pattern is formed by hot pressing as described above has a problem that the curved surface followability is poor because the synthetic resin or synthetic resin fibers of the hot pressed part melt and form a hard layer. there were. In particular, those having a large concave portion whose one concave portion area exceeds 25 mm 2 (5 mm × 5 mm) have a problem that distortion occurs when the seat is covered because the curved surface followability is poor. . In addition, in recent years, not only has a structure in which the front side swells, such as a bucket seat, but also a seat with a complicated structure, which has a concave shape on the front side, has appeared, and these seats can be accommodated. There is a need for seat materials for seats. Furthermore, for seats and sofas, there is a demand for seat materials for seats that can accommodate products with complex shapes and designs.
The seat material for a seat according to the present invention has good curved surface followability despite being formed with a concavo-convex pattern by hot pressing, and can be used for products having complicated shapes and designs.

本発明の座席用シート材は、自動車、鉄道車輌などの車輌の座席シート用表皮材として好適に用いられるが、特にこのような用途に限定されるものではない。また、車輌の座席シート用表皮材として用いられる場合には、座席シートのクッション構造体の上に本発明の座席用シート材が被覆状態に配置されるのが一般的であり、かつ好ましい形態である。   The seat material of the present invention is suitably used as a skin material for seats of vehicles such as automobiles and railway vehicles, but is not particularly limited to such applications. In addition, when used as a skin material for a seat of a vehicle, the seat material of the present invention is generally disposed in a covered state on a cushion structure of the seat seat, and in a preferred form. is there.

以下に、この発明の具体的実施例について説明するが、本発明はこれらの実施例に限定されるものではない。   Specific examples of the present invention will be described below, but the present invention is not limited to these examples.

実施例１
（ａ）表皮材として、厚さ１．２ｍｍのトリコットと、厚さ３．５ｍｍの（ｂ）軟質ポリウレタンフォーム（硬さ１３０Ｎ）と、（ｃ）裏布としてナイロンハーフトリコットをフレームラミネート法により積層一体化して積層体を得た。
図１に示すように、上下一対の熱盤間１１、１２に、前記積層体１３と、成形型１０とを、該成形型の型押部１０ａと積層体１３の表皮材とが向き合う態様で配置し、加熱温度１７５℃、加圧圧力５ｋｇ／ｃｍ2 の条件で６０秒間熱プレスを行った。
図１に示す成形型１０はアルミニウムからなり、図１に示すように、成形型１０の一方の面（成形面）には同一形状の型押部（１０ａ）…が多数個突設されている。この型押部１０ａの表面は、８０メッシュの砂を吹きつけてサンドブラスト法により形成した微細な凹凸を有している。なお、成形型への粒子の吹きつけは、成形型切削加工後に行った。
熱プレスにより、表面に凹凸模様を有し、凹部の底面が、微細な凹凸を有していて、光沢のない、図２に示す座席用シート材２０を得た。また、このシート材は曲面追従性がよかった。なお、図２において、２３は（ａ）表皮材、２４は（ｂ）軟質ポリウレタンフォーム、２５は（ｃ）裏布である。 Example 1
(A) Tricot with a thickness of 1.2 mm as a skin material, (b) Soft polyurethane foam (with a hardness of 130 N) with a thickness of 3.5 mm, and (c) Nylon half tricot as a backing cloth is laminated by a frame lamination method. It integrated and the laminated body was obtained.
As shown in FIG. 1, the laminate 13 and the mold 10 are placed between the upper and lower pair of heating plates 11 and 12 in such a manner that the pressing portion 10 a of the mold and the skin material of the laminate 13 face each other. And press-pressing for 60 seconds under the conditions of a heating temperature of 175 ° C. and a pressing pressure of 5 kg / cm 2 .
A molding die 10 shown in FIG. 1 is made of aluminum, and as shown in FIG. 1, a large number of mold pressing portions (10a)... Having the same shape project from one surface (molding surface) of the molding die 10. . The surface of the embossed portion 10a has fine irregularities formed by sandblasting by blowing 80 mesh sand. The particles were sprayed onto the mold after the mold was cut.
The seat material 20 for a seat shown in FIG. 2 was obtained by hot pressing, which had a concavo-convex pattern on the surface, the bottom surface of the concave portion had fine unevenness, and was not glossy. Moreover, this sheet material had good curved surface followability. In FIG. 2, 23 is (a) a skin material, 24 is (b) a flexible polyurethane foam, and 25 is (c) a backing cloth.

比較例１
成形型に、サンドブラスト加工をしていない以外はすべて実施例１と同様に行い、座席用シート材を得た。得られた座席用シート材は、表面に凹凸模様を有し、凹部の底面は光沢があった。 Comparative Example 1
A seat material for a seat was obtained in the same manner as in Example 1 except that the molding die was not sandblasted. The obtained seat material for a seat had a concavo-convex pattern on the surface, and the bottom surface of the recess was glossy.

本発明の座席用シート材は、自動車や鉄道車両などの車両の座席シート、ソファー、座椅子などに使用される座席用シート材として好適に用いられる。   The seat material for seats of the present invention is suitably used as a seat material for seats used for seats, sofas, seats and the like of vehicles such as automobiles and railway vehicles.

本発明の座席用シート材を製造する方法の１例を示す概略断面図である。It is a schematic sectional drawing which shows one example of the method of manufacturing the seat material for seats of this invention. 実施例１で得られた座席用シート材である。2 is a seat material obtained in Example 1. FIG.

符号の説明Explanation of symbols

１０ 成形型
１０ａ 型押部
１０ｂ 非型押部
１１、１２ 熱盤
１３ （ａ）、（ｂ）、（ｃ）の積層体
２０ 座席用シート材
２１ 凹凸模様の凸部
２２ 凹凸模様の凹部
２３ （ａ）表皮材
２４ （ｂ）軟質ポリウレタンフォーム
２５ （ｃ）裏布

DESCRIPTION OF SYMBOLS 10 Mold 10a Embossing part 10b Non-impressing part 11, 12 Laminate 13 (a), (b), (c) 20 Seat material for seat 21 Convex pattern convex part 22 Concave pattern concave part 23 ( a) Skin material 24 (b) Flexible polyurethane foam 25 (c) Back cloth

Claims (1)

（ａ）表皮材単体、もしくは（ａ）表皮材と（ｂ）軟質ポリウレタンフォームの積層体、もしくは（ａ）表皮材と（ｂ）軟質ポリウレタンフォームと（ｃ）裏布の積層体からなる座席用シート材において、（ａ）表皮材が、合成繊維からなる布帛、または合成繊維からなる布帛層と合成樹脂層の積層体からなり、（ｂ）軟質ポリウレタンフォームが厚さが１〜１５ｍｍであり、該座席用シート材の表皮材の表面側には、熱プレス成形によって成型された凹凸形状を有し、かつ少なくとも該凹凸形状の凹部底面に微細な凹凸を有することを特徴とする座席用シート材。
(A) A single skin material, or (a) a laminate of a skin material and (b) a flexible polyurethane foam, or (a) a skin material comprising a skin material, (b) a flexible polyurethane foam, and (c) a laminate of a back fabric. In the sheet material, (a) the skin material is composed of a fabric composed of synthetic fibers, or a laminate of a fabric layer composed of synthetic fibers and a synthetic resin layer, (b) the flexible polyurethane foam has a thickness of 1 to 15 mm, The seat material for a seat, characterized in that on the surface side of the skin material of the seat material for seats, there is a concavo-convex shape formed by hot press molding, and at least a concavo-convex shape on the bottom surface of the concavo-convex shape .
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JP2012210776A (en) * 2011-03-31 2012-11-01 Achilles Corp Sheet material
JP2013059881A (en) 2011-09-12 2013-04-04 Act:Kk Method for producing elongate material having embossed pattern
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JP2017030434A (en) * 2015-07-30 2017-02-09 株式会社タチエス Vehicle seat and manufacturing method of the same
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US11046041B2 (en) 2017-10-19 2021-06-29 Seiren Co., Ltd. Decorative sheet, emboss processing method and emboss processing mold
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US11884048B2 (en) 2018-02-13 2024-01-30 Seiren Co., Ltd. Decorative sheet, embossing method and embossing die

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AU2011203573B2 (en) * 2011-03-17 2013-11-28 Formosa Sounding Corp. Thermo-pressed cushioning support device
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US11884048B2 (en) 2018-02-13 2024-01-30 Seiren Co., Ltd. Decorative sheet, embossing method and embossing die

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