JP5627939B2 - Manufacturing method of adhesive sheet - Google Patents
Manufacturing method of adhesive sheet Download PDFInfo
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- JP5627939B2 JP5627939B2 JP2010150752A JP2010150752A JP5627939B2 JP 5627939 B2 JP5627939 B2 JP 5627939B2 JP 2010150752 A JP2010150752 A JP 2010150752A JP 2010150752 A JP2010150752 A JP 2010150752A JP 5627939 B2 JP5627939 B2 JP 5627939B2
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- skin material
- adhesive
- pad
- adhesive sheet
- manufacturing
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Description
本発明は自動車用シートの製造方法、詳しくは発泡体製パッドの表面に接着剤で表皮材を接着して形成する接着シートの製造方法に関する。 The present invention relates to a method for manufacturing an automobile sheet, and more particularly to a method for manufacturing an adhesive sheet formed by bonding a skin material with an adhesive to the surface of a foam pad.
従来の接着シートには表皮材とパッドとの間に接着フィルムからなるホットメルト型接着剤を介在させて、表皮材をパッドに加圧、加熱して、接着フィルムを溶融させて、表皮材をパッドに接着しているものがある（例えば特開平５-９２０８５号公報）。 In conventional adhesive sheets, a hot-melt adhesive consisting of an adhesive film is interposed between the skin material and the pad, and the skin material is pressurized and heated to the pad to melt the adhesive film. Some are bonded to a pad (for example, JP-A-5-92085).
一方、前記ホットメルト型接着剤の代わりに、ウレタン系の熱硬化性接着剤を使用したものもある。 On the other hand, some use a urethane-based thermosetting adhesive instead of the hot-melt adhesive.
以上のホットメルト型接着剤を使用したものは、接着剤が面接着し硬化するため、表皮材の剛性が上昇し表皮材に柔らかさや、良好なタッチ感が損なわれる不具合があった。 In the case of using the above hot melt type adhesive, the adhesive is surface-bonded and hardened, so that the rigidity of the skin material is increased and the skin material has a problem that the softness and good touch feeling are impaired.
一方、接着剤としてウレタン系の熱硬化材を使用して表皮材をパッドに接着すると、前記接着剤の不具合はある程度解消されるが、前記接着剤を使用したものに対して製造コストが増加する欠陥がある。 On the other hand, if the skin material is bonded to the pad using a urethane-based thermosetting material as the adhesive, the problem of the adhesive is solved to some extent, but the manufacturing cost is increased compared to the one using the adhesive. There is a defect.
そこで、本発明は斯様な従来の接着剤による接着シートの製造方法の不具合を除去することを目的とする。 Then, this invention aims at removing the malfunction of the manufacturing method of the adhesive sheet by such a conventional adhesive agent.
以上の目的を達成するための本発明に係る接着シートの製造方法は、発泡体製パッドの表面に、表皮材をホットメルト接着剤で接着して形成する接着シートの製造方法であって、前記表皮材に、ポリアミド系のブロック体を溶融した状態の熱可塑性合成樹脂製接着剤を、直接、薄膜の不織布状に塗布し、該接着剤が硬化後に、該表皮材をパッドの表面に超音波、又は、高周波で点接着することを特徴とする構成である。 Production method of the adhesive sheet according to the present invention for achieving the above object, the surface of the foamed substance pad, a manufacturing method of the adhesive sheet formed by adhering the skin material in e Ttome melt adhesive, the skin material, a thermoplastic synthetic resin glue of a molten state blocks of polyamide, directly applied to the nonwoven fabric-like thin film, adhesive is after curing, the said surface skin material to the surface of the pad super The structure is characterized by point bonding with sound waves or high frequency .
そして、前記表皮材をロール状に巻回した状態より繰出し、その裏面に、直接、前記溶融状態の接着剤を塗布し、この接着材の硬化後に、表皮材を裁断、縫製して、パッドに表皮材を接着することにより、表皮材に対する接着剤の塗布が簡単になり製造原価を低減できる。 Then, the skin material is fed out from the state wound in a roll shape, and the molten adhesive is directly applied to the back surface of the skin material. After the adhesive is cured, the skin material is cut and sewn to form a pad. By adhering the skin material, the application of the adhesive to the skin material is simplified and the manufacturing cost can be reduced.
更に、前記表皮材は一枚状の生地又はこの生地の裏面に積層した発泡体製ワディングとから構成することにより、表皮材、又はワディングが、薄膜の不織布状の接着剤の塗布により補強される。 Furthermore, the skin material is composed of a single piece of fabric or a foamed wadding laminated on the back of the fabric, so that the skin material or wadding is reinforced by application of a thin-film non-woven adhesive. .
また、前記表皮材をパッドの表面に超音波、又は、高周波で接着することにより、表皮材をパッドに接着する際に、熱が発生せず表皮材を損傷しない。また、表皮材の表面が柔らかさで、良好なタッチ感が得られる。加えて、接着後の冷却が不要となる。 Further, by adhering the skin material to the surface of the pad with ultrasonic or high frequency, when the skin material is adhered to the pad, no heat is generated and the skin material is not damaged. Moreover, the surface of the skin material is soft, and a good touch feeling can be obtained. In addition, cooling after bonding becomes unnecessary.
本発明によれば、パッドに接着した表皮材の表面に剛性上昇がなく、製造原価を低減し得る。 According to the present invention, there is no increase in rigidity on the surface of the skin material bonded to the pad, and the manufacturing cost can be reduced.
以下、図面を参照しつつ本発明に係る接着シートの製造方法の好適な実施形態について説明する。 Hereinafter, a preferred embodiment of a method for producing an adhesive sheet according to the present invention will be described with reference to the drawings.
本発明はモールド加工したウレタンフォームなどの発泡体製のパッドに、ホットメルト接着剤で表皮材を接着して形成する接着シートであり、前記ホットメルト接着剤として、ナイロンなどのポリアミド系の熱可塑性合成樹脂からなるブロック体を溶融状態で、直接、表皮材の裏面に均一にアプリケータなどにより塗布して、パッドに表皮材を超音波、又は、高周波で点接着することを特徴とする。 The present invention is an adhesive sheet formed by bonding a skin material with a hot melt adhesive to a foamed pad such as a molded urethane foam, and the hot melt adhesive is a polyamide-based thermoplastic such as nylon A block body made of a synthetic resin is applied in a molten state directly and uniformly to the back surface of the skin material with an applicator or the like, and the skin material is spot-bonded to the pad with ultrasonic waves or high frequency .
以上の接着剤３は例えば図１に示すように、ポリアミド系のブロック体、粒体などを投入して加熱する溶融槽４０と、この溶融槽４０にパイプ４１などで連結したアプリケータ４２によって表皮材１の裏面に、全体に均一の薄膜の不織布状に高圧で塗布する。図４３…は塗布口を示す。 For example, as shown in FIG. 1, the adhesive 3 described above is formed by a melting tank 40 in which a polyamide block or granule is charged and heated, and an applicator 42 connected to the melting tank 40 by a pipe 41 or the like. The back surface of the material 1 is coated at high pressure in the form of a non-woven fabric with a uniform thin film throughout. FIG. 43 shows an application port.
この接着剤３は多数の塗布口４３…を回転など可動して塗布するため、表皮材１の裏面に薄膜の不織布状となって硬化する。 Since the adhesive 3 is applied by rotating a large number of coating openings 43..., The adhesive 3 is cured as a thin film nonwoven fabric on the back surface of the skin material 1.
以上の表皮材１は、従来自動車用シートに使用されているものであり、前記接着剤３の塗布効率を向上させるために、図２に示すように、ロール状に巻回されている表皮材１の巻回体Ａより繰出された表皮材１の裏面に、前記接着剤３を塗布する。 The above skin material 1 is conventionally used for an automobile seat, and in order to improve the application efficiency of the adhesive 3, the skin material wound in a roll shape as shown in FIG. The adhesive 3 is applied to the back surface of the skin material 1 drawn out from the wound body A of 1.
即ち、前記表皮材１はシートの表皮材として裁断、縫製する前の状態で、接着剤３を直接、塗布する。この表皮材１の裏面に接着剤３を塗布し、その薄膜の接着剤３が硬化することにより、表皮材１の裏面側が硬化した薄膜の接着剤３により補強される。 That is, the skin material 1 is directly applied with the adhesive 3 in a state before being cut and sewn as a skin material of the sheet. The backside of the skin material 1 in an adhesive 3 is coated, by an adhesive 3 of the thin film is cured, the back surface side of the skin material 1 is reinforced by an adhesive 3 of the thin film was cured.
なお、前記表皮材１の裏面にウレタンスラブ製のワディングを一体に有するものにおいては、ワディングに前記接着剤３を塗布するのが望ましく、このようにすることにより、ワディングの外面が補強されるため、ワディングの外面にワディングカバーを別途設ける必要がないか、或いはワディングカバーを設けても、厚さの薄いワディングカバーなどを使用できる。 In addition, in the case of integrally having a urethane slab-made wadding on the back surface of the skin material 1, it is desirable to apply the adhesive 3 to the wadding, and in this way, the outer surface of the wadding is reinforced. It is not necessary to separately provide a wading cover on the outer surface of the wading, or even if a wading cover is provided, a thin wading cover or the like can be used.
以上の如く、表皮材１の裏面に、溶融状態の接着剤３を塗布し、その接着剤３が硬化した後に、図２に示すように、その表皮材１を裁断し、接着剤１を塗布しない別の表皮材片１０、１１、１２に接ぎ合わせて袋状に縫製する。 As described above, the adhesive 3 in a molten state is applied to the back surface of the skin material 1, and after the adhesive 3 is cured, the skin material 1 is cut and the adhesive 1 is applied as shown in FIG. The other skin material pieces 10, 11 and 12 that are not attached are sewn into a bag shape.
この表皮材１を接着する前記パッド２はその接着面である上面２０には表皮材１の一部を喰い込ませて接着する凹溝２１Ａ、２１Ａが設けてある。 The pad 2 to which the skin material 1 is bonded is provided with concave grooves 21A and 21A for allowing a part of the skin material 1 to bite and adhere to the upper surface 20 which is the bonding surface.
図３はパッド２に、袋状に縫製した表皮材１を被せて、上型５０と下型５１との間にセットする状態を示し、この上、下型５０、５１で表皮材１を接着剤３の融点以上の温度で加熱し、圧着することにより、接着剤３を溶融させて表皮材１をパッド２の上面２０に超音波、又は、高周波で点接着する。これにより、接着シートは完成する。 FIG. 3 shows a state in which the pad 2 is covered with the skin material 1 sewn in a bag shape and set between the upper die 50 and the lower die 51, and the skin material 1 is bonded to the lower die 50, 51. By heating and crimping at a temperature equal to or higher than the melting point of the agent 3, the adhesive 3 is melted and the skin material 1 is point bonded to the upper surface 20 of the pad 2 with ultrasonic waves or high frequency . Thereby, an adhesive sheet is completed.
以上の高周波、又は、超音波接着機を使用することにより、接着時に発熱せず、表皮材１を損傷することがないし、また、冷却工程を省略できる利点がある。 By using the above high-frequency or ultrasonic bonding machine, there is an advantage that no heat is generated during bonding, the skin material 1 is not damaged, and the cooling step can be omitted.
なお、前記上型５０には表皮材１の一部をパッド２の凹溝２１Ａ、２１Ａに食い込ませるための凸起５０Ａ、５０Ａが設けてあり、この凸起５０Ａ、５０Ａにより、パッド２の凹溝２１Ａ、２１Ａ内に表皮材１の一部が喰い込まれて接着される。 The upper mold 50 is provided with protrusions 50A and 50A for allowing a part of the skin material 1 to bite into the concave grooves 21A and 21A of the pad 2, and the protrusions 50A and 50A cause the pad 2 to be recessed. Part of the skin material 1 is bitten into the grooves 21A and 21A and bonded.
その際、図４に示すように表皮材１の喰い込まれる部分に接着剤３が塗布されているため、パッド１の凹溝２１Ａ、２１Ａ内に表皮材１が確実に接着される。図中３´は溶融して硬化した薄膜の接着剤を示す。 At that time, as shown in FIG. 4, since the adhesive 3 is applied to the portion where the skin material 1 is engulfed, the skin material 1 is securely bonded in the concave grooves 21 </ b> A and 21 </ b> A of the pad 1. In the figure, 3 'represents a thin film adhesive which has been melted and cured.
以上のように、表皮材１をパッド２に点接着することにより、従来の表皮材とパッドとの間にフィルム状ホットメルト接着剤を介在させて接着したものの如く、表皮材の剛性が上昇することがないため、ごわごわ感がなく、製造原価も低減できる。 As described above, the point of the skin material 1 to the pad 2 increases the rigidity of the skin material as in the case where a conventional hot melt adhesive is interposed between the skin material and the pad. Since there is no such thing, there is no feeling of stiffness and the manufacturing cost can be reduced.
また、あらかじめ表皮材１に一体に接着剤３が設けてあるため、従来の如く、表皮材とパッドとの所定位置にホットメルト接着剤を配置して、表皮材をパッドに加熱、圧着する必要がない。従って、表皮材をパッドに接着する際の作業性を向上し得る。 In addition, since the adhesive 3 is provided in advance on the skin material 1, it is necessary to place a hot melt adhesive at a predetermined position between the skin material and the pad and heat and press the skin material to the pad as in the past. There is no. Therefore, workability when the skin material is bonded to the pad can be improved.
更に、表皮材１の裏面には、直接、薄膜の不織布状の接着剤を設けて補強してあるため、表皮材１の裏面側に補強部材を設ける必要がない。一方、表皮材１の裏面に、ワディングを一体に設けたものにおいては、厚みの薄いワディングを使用できるし、また、補強用のワディングカバーが不要となる。従って、従来品に対して材料費を削減できる。 Furthermore, since the thin film nonwoven fabric adhesive is directly provided on the back surface of the skin material 1 to reinforce, it is not necessary to provide a reinforcing member on the back surface side of the skin material 1. On the other hand, in the case where the back surface of the skin material 1 is integrally provided with a wadding, a thin wadding can be used, and a reinforcing wadding cover is not required. Therefore, the material cost can be reduced compared to the conventional product.
１…表皮材、２…パッド、３…接着剤。
1 ... skin material, 2 ... pad, 3 ... adhesive.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010150752A JP5627939B2 (en) | 2010-07-01 | 2010-07-01 | Manufacturing method of adhesive sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010150752A JP5627939B2 (en) | 2010-07-01 | 2010-07-01 | Manufacturing method of adhesive sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012011019A JP2012011019A (en) | 2012-01-19 |
| JP5627939B2 true JP5627939B2 (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010150752A Expired - Fee Related JP5627939B2 (en) | 2010-07-01 | 2010-07-01 | Manufacturing method of adhesive sheet |
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| JP (1) | JP5627939B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692199A (en) * | 1985-12-13 | 1987-09-08 | Lear Siegler, Inc. | Method and apparatus for bonding fabric to a foam pad |
| JP5048041B2 (en) * | 1998-08-07 | 2012-10-17 | 株式会社イノアックコーポレーション | Manufacturing method of skin material |
| JP4560061B2 (en) * | 2007-03-01 | 2010-10-13 | 日本発條株式会社 | Sheet manufacturing method and sheet manufacturing apparatus |
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| JP2012011019A (en) | 2012-01-19 |
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