JPH01186322A - Surface layer of interior material - Google Patents

Surface layer of interior material

Info

Publication number
JPH01186322A
JPH01186322A JP63011495A JP1149588A JPH01186322A JP H01186322 A JPH01186322 A JP H01186322A JP 63011495 A JP63011495 A JP 63011495A JP 1149588 A JP1149588 A JP 1149588A JP H01186322 A JPH01186322 A JP H01186322A
Authority
JP
Japan
Prior art keywords
surface layer
skin
layer
sheet
pattern
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.)
Granted
Application number
JP63011495A
Other languages
Japanese (ja)
Other versions
JP2574841B2 (en
Inventor
Tamio Furuya
民雄 古屋
Noboru Matsuura
昇 松浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Okamoto Industries Inc
Original Assignee
Honda Motor Co Ltd
Okamoto Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd, Okamoto Industries Inc filed Critical Honda Motor Co Ltd
Priority to JP63011495A priority Critical patent/JP2574841B2/en
Priority to GB8900196A priority patent/GB2214868B/en
Priority to CA000588109A priority patent/CA1337111C/en
Priority to BE8900050A priority patent/BE1003764A4/en
Publication of JPH01186322A publication Critical patent/JPH01186322A/en
Priority to US07/985,365 priority patent/US5242738A/en
Application granted granted Critical
Publication of JP2574841B2 publication Critical patent/JP2574841B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/027—Thermal properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/536—Hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B60R13/0256—Dashboard liners

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Instrument Panels (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To prevent a surface layer from damaging, and to apparently and effectively form an uneven pattern on the surface of the layer by forming it of synthetic resin, covering the surface of the layer body imparted with high developing property with skin which is suitably reduced at its softening temperature as compared with that of the layer body, and forming the uneven pattern on the skin. CONSTITUTION:A synthetic resin sheet C is hung horizontally, and heated to be softened at approx. 185 deg.C. Thus sheet C is disposed directly under the sheet superposing face of the lower end of the pattern with the surface layer (a) upside, evacuated in vacuum to strongly bring the sheet C into contact with the pattern mold through a skin 2. The sheet C is released from the mold to obtain a molding C' having clear uneven pattern (b). In this case, a surface layer body 1 maintains the hardness of the layer (a) and incorporates with high developing property. Accordingly, the strength of the layer (a) can be maintained even at a position extended at the time of molding, and the softening temperature of the skin (a) covering the outer face of the body 1 is suitably reduced as compared with that of the body 1. Therefore, the layer of the skin 2 can be effectively transferred with a clear uneven part to the layer (a) in a soft state at the time of molding.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、内装材の表面層、例えば自動車用のインスト
ルメントパネル、前後両側ドア、ルーフ等の内装材の表
面層に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a surface layer of an interior material, such as an instrument panel for an automobile, front and rear doors, a roof, and the like.

〈従来の技術〉 従来自動車用のインストルメントパネル等の内装材は第
５図に示す如く、骨材（２１）の外面に発泡体等で形成
された緩衝材層（２２）が接着され、この緩衝材層（２
２）の外面に適宜な硬度を有する塩化ビニル樹脂製の表
面層（２３）が接着されたものである。<Prior Art> Conventionally, as shown in Fig. 5, interior materials for automobile instrument panels, etc., include a cushioning material layer (22) made of foam or the like bonded to the outer surface of an aggregate (21). Cushioning material layer (2
A surface layer (23) made of vinyl chloride resin having an appropriate hardness is adhered to the outer surface of 2).

上記表面層（２３）の表面にはソフト感を付与するため
に凹凸模様（２４）として擬革を表現する皺模様が設け
られていた。The surface of the surface layer (23) was provided with a wrinkled pattern expressing fake leather as an uneven pattern (24) in order to impart a soft feel.

表面層（２３）の表面に凹凸模様（２４）を形成させる
ために、本出願人らは特開昭６１−１０４８４８号公報
に開示した如く、上記凹凸模様（２４）に対応する凹凸
模様を持つシート重合面を有すると共に該シート重合面
全体に亘り均一に分布する無数の微細連続気孔を有する
模様型を用いて成形と同時に凹凸模様（２４）を形設す
る真空成形法を開発した。In order to form an uneven pattern (24) on the surface of the surface layer (23), as disclosed in Japanese Unexamined Patent Application Publication No. 61-104848, the present applicant et al. A vacuum forming method was developed in which an uneven pattern (24) is formed simultaneously with molding using a pattern mold having a sheet polymerization surface and countless fine continuous pores uniformly distributed over the entire sheet polymerization surface.

この方法は、表面Ｎ（２３）の裏面に緩衝材層（２２）
が接合された合成樹脂シートをあらかじめ高温加熱して
軟化させ、表面層（２３）を上にして真上に位置する・
上記模様型に吸引密着、させて成形するもので、これに
より表面層（２３）の表面には皺模様など模様型の凹凸
模様（２４）が転写されるものである。In this method, a cushioning material layer (22) is formed on the back side of the front surface N (23).
The synthetic resin sheet bonded with is heated to a high temperature in advance to soften it, and the sheet is placed directly above with the surface layer (23) facing up.
It is molded by being brought into close contact with the pattern by suction, thereby transferring a pattern-shaped uneven pattern (24) such as a wrinkle pattern to the surface of the surface layer (23).

しかし、表面層（２３）において、成形時に屈曲部等大
きく引き延ばされる部位が破れたり、また上記合成樹脂
シートの加熱温度のばらつぎ、加熱後模様型による成形
時の合成樹脂シートの温度低下及びこの低下のばらつき
等によって凹凸模様（２４）が不明瞭になる場合があり
、引き延ばされる部位においては更にこの傾向が大きい
という問題が生じた。However, in the surface layer (23), parts that are stretched greatly during molding, such as bent parts, may break, and the heating temperature of the synthetic resin sheet may vary, and the temperature of the synthetic resin sheet may drop during molding with a pattern mold after heating. Due to variations in this reduction, etc., the concave-convex pattern (24) may become unclear, and this tendency is even greater in the stretched region.

〈発明が解決しようとする技術的課題〉本発明が解決し
ようとする問題点は、成形時に表面層が破れないように
すると共に、表面層の硬度を維持させながら表面層の表
面における凹凸模様を明瞭に且つ確実に形成させること
にある。<Technical Problems to be Solved by the Invention> The problems to be solved by the present invention are to prevent the surface layer from tearing during molding, and to improve the uneven pattern on the surface of the surface layer while maintaining the hardness of the surface layer. The purpose is to form the image clearly and reliably.

く技術的課題を解決するための手段〉 上記課題を解決するために本発明が講する技術的重殺は
、合成樹脂で形成し、高展開性を付与した表面層本体の
表面に該表面層本体より適宜に軟化温度を低くした表皮
を被覆し、該表皮に凹凸模様を形設したことを特徴とす
る。Means for Solving the Technical Problems> The technical advantage taken by the present invention in order to solve the above problems is that the surface layer is formed of a synthetic resin and has high expandability on the surface of the main body. It is characterized in that it is covered with a skin whose softening temperature is suitably lower than that of the main body, and that an uneven pattern is formed on the skin.

〈作用〉 以上の手段によれば、表面層本体が表面層の硬度を維持
すると共に高展開性を有しているので成形時に引き延ば
される部位においても表面層の強度を維持し、表面層本
体の外面に被覆した表皮の軟化温度を表面層本体より適
宜に低くしたので、成形時に表皮層がより軟らかい状態
で該表面層に明瞭な凹凸模様が確実に転写される。<Function> According to the above means, the surface layer main body maintains the hardness of the surface layer and has high expandability, so the strength of the surface layer is maintained even in the part stretched during molding, and the surface layer main body maintains its hardness and has high expandability. Since the softening temperature of the skin coated on the outer surface of the mold is suitably lower than that of the surface layer itself, a clear uneven pattern is reliably transferred to the surface layer while the skin layer is in a softer state during molding.

〈実施例〉 以下、本発明の一実施例を図面に基づいて説明する。<Example> Hereinafter, one embodiment of the present invention will be described based on the drawings.

第１図は内装材（Ａ）として自動車用のインストルメン
トパネルを例示したものである。この内装材（Ａ）は、
骨材（４）の外面に緩衝材層（５）が接合され、更にこ
の緩衝材層（５）の外面に表面層（ａ）が接合されたも
のであり、表面層（ａ＞が表面層本体（１）と表皮（２
）との２層から構成され、該表皮（２）には全面にわた
って皺模様など複雑な凹凸模様（ｂ）が明瞭に形設され
ている。FIG. 1 shows an example of an automobile instrument panel as the interior material (A). This interior material (A) is
A buffer material layer (5) is bonded to the outer surface of the aggregate (4), and a surface layer (a) is further bonded to the outer surface of this buffer layer (5), and the surface layer (a> is the surface layer). Body (1) and epidermis (2
), and the skin (2) has a complex uneven pattern (b) such as a wrinkle pattern clearly formed over the entire surface.

なお、本発明において表面層（ａ）の表面に凹凸模様（
ｂ）を形設するためには、〈従来の技術〉において説明
した如く、表皮（２）の外面形状と同じ形状で上記凹凸
模様（ｂ）に対応する凹−眠　　　− 凸模様を持つシート重合面を有すると共に該シート重合
面全体に亘り均一に分布する無数の微細連続気孔を有す
る模様型（不図示）を用いた真空成形法によって内装材
（Ａ）の成形と同時に凹凸模様（ｂ）を形設する方法を
用いて・行なうことができる。In addition, in the present invention, the surface of the surface layer (a) has an uneven pattern (
In order to form b), as explained in <Prior Art>, a sheet polymerization having a concave-convex pattern having the same shape as the outer surface shape of the skin (2) and corresponding to the concave-convex pattern (b) is required. The uneven pattern (b) is formed simultaneously with the molding of the interior material (A) by a vacuum forming method using a pattern mold (not shown) having a surface and numerous fine continuous pores uniformly distributed over the entire sheet polymerization surface. It can be done using a method of shaping.

また、骨材（４）は上記緩衝材層（５）及び表面層（ａ
）の成形時に同時に接着してもよいし、第３図に示す如
く緩衝材層（５）と表面層（ａ）を接合した合成樹脂シ
ート（Ｃ・）を骨材（４）と別に所定の形状に成形して
成形体（Ｃ′）を構成しく第４図参照）、その後この成
形体（Ｃ′）に別工程にお・いて骨材（′４）’を接着
するようにする等任意に設定可能である。In addition, the aggregate (4) is the buffer material layer (5) and the surface layer (a).
) may be bonded at the same time during molding, or as shown in Figure 3, a synthetic resin sheet (C) with the cushioning material layer (5) and surface layer (a) bonded together may be bonded separately from the aggregate (4). It is optional, such as molding it into a shape to form a molded body (C') (see Figure 4), and then bonding aggregate ('4)' to this molded body (C') in a separate process. Can be set to

骨材（４）は、内装材（Ａ）の芯材としての層を有し、
へＢＳ樹脂、硬質つレタン樹脂、ポリプロピレン等適宜
な強度及び硬度を有する材料で所定の形状に形成される
ものであり、骨材（４）の外面にはホットメルト接着剤
等の接着剤によって緩衝材層（５）が接合されている。The aggregate (4) has a layer as a core material of the interior material (A),
It is formed into a predetermined shape using a material with appropriate strength and hardness, such as BS resin, hard urethane resin, or polypropylene, and the outer surface of the aggregate (4) is cushioned with an adhesive such as hot melt adhesive. The material layer (5) is joined.

。 緩衝材層（５）は、クツションの働きを有し、ポリプロ
ピレン、ウレタン樹脂等の材料を用いて適宜な膨張倍率
で発泡させたものであり、緩衝材層（５）の外面には適
宜な接着剤によって表面層（ａ）が接合されている。. The cushioning material layer (5) has the function of a cushion, and is made of foamed material such as polypropylene or urethane resin at an appropriate expansion ratio, and is coated with an appropriate adhesive on the outer surface of the cushioning material layer (5). The surface layer (a) is bonded by the agent.

表面層（ａ）は、適宜な硬度を有する表面層本体（１）
と、該表面層本体（１）の外面に被覆され前述した様な
模様型によって凹凸模様（ｂ）が形設された表皮く２）
との２層から構成されている。The surface layer (a) is a surface layer main body (1) having appropriate hardness.
and a skin coated on the outer surface of the surface layer main body (1) and having an uneven pattern (b) formed by the above-mentioned pattern 2).
It is composed of two layers.

表面層本体（１）は、表面層（ａ）の所定の硬度を維持
すると共に、高展開性を付与することによって成形時に
表面層（ａ）が引き延ばされ易いようにしてあり、また
表皮（２）は表面層（ａ）の外面に例えば１００μ程度
の深さの凹凸模様（ｂ）を明瞭に且つ確実に形設するた
めの薄い層構造のもので、表面層本体（１）より適宜に
軟化温度が低くなるように構成しである。The surface layer main body (1) maintains a predetermined hardness of the surface layer (a) and has high expandability so that the surface layer (a) can be easily stretched during molding. (2) has a thin layer structure for clearly and reliably forming the uneven pattern (b) with a depth of, for example, about 100 μm on the outer surface of the surface layer (a). The structure is such that the softening temperature is low.

表面層本体（１）と表皮（２）との組合せにおいて、両
者（１）（２）が同じ化学物質を主体として成り且つ該
化学物質が単一の化合物の重合体で成る場合、表皮（２
）における上記重合体の重合度が表面層本体（１）にお
ける重合体の重合度より適宜に小さくなるように構成し
、これによって表皮（２）の軟化温度が表面層本体（１
）の軟化温度よりも適宜に低くなるようにするものであ
る。In the combination of the surface layer main body (1) and the epidermis (2), when both (1) and (2) are mainly composed of the same chemical substance and the chemical substance is composed of a polymer of a single compound, the epidermis (2)
) is configured so that the degree of polymerization of the polymer in the surface layer body (1) is appropriately smaller than that of the polymer in the surface layer body (1), whereby the softening temperature of the skin (2) is lower than that of the surface layer body (1
) is set to be appropriately lower than the softening temperature of

例えば、表面層本体〈１）と表皮（２）とが共にポリ塩
化ビニルを主体として構成される場合、表面層本体（１
）には重合度が２，５００程度の高重合度のものを用い
、一方表皮（２）には重合度８００程度の低重合度のも
のを用いる等の設定が可能である。この際表面層本体（
１）は相対的に高重合度の樹脂材料を基礎とし可塑剤の
配合量を適宜に増加して、必要な硬度を維持させながら
軟化する温度を下げ高展開性にする。表面層本体（１）
にはより硬度や強度を維持するためにＡＢＳ樹脂樹脂等
台成樹脂を適宜な割合で配合しておいてもよい。For example, when the surface layer body (1) and the skin (2) are both composed mainly of polyvinyl chloride, the surface layer body (1)
) may have a high polymerization degree of about 2,500, while the skin (2) may have a low polymerization degree of about 800. At this time, the surface layer body (
1) is based on a resin material with a relatively high degree of polymerization, and the amount of plasticizer added is appropriately increased to lower the softening temperature while maintaining the required hardness, thereby achieving high expandability. Surface layer body (1)
In order to maintain hardness and strength, a synthetic resin such as ABS resin may be blended in an appropriate ratio.

次に、上述の様な材料を用いて表面層（ａ）の表皮（２
）に凹凸模様（ｂ）を形設する方法について説明する。Next, the epidermis (2) of the surface layer (a) is prepared using the materials described above.
) The method for forming the uneven pattern (b) will be explained.

第３図に示した様な前記合成樹脂シート（Ｃ）を水平に
吊持して略１８５℃で加熱軟化する。この合成樹脂シー
ト（Ｃ）を前述した模様型（不図示）下端のシート重合
面の真下に表面層（ａ）を上側にして配置し、真空吸引
して合成樹脂シート（Ｃ）を表皮（２）側を介して模様
型に強く密着させる。The synthetic resin sheet (C) as shown in FIG. 3 is suspended horizontally and softened by heating at approximately 185°C. This synthetic resin sheet (C) is placed directly below the sheet overlapping surface at the lower end of the pattern (not shown) with the surface layer (a) facing upward, and vacuum suction is applied to transfer the synthetic resin sheet (C) to the epidermis (2). ) side and firmly adhere to the pattern.

この時、より密着性をよくするために模様型に対応する
押圧型をシート（Ｃ）の下より押圧するようにしてもよ
い。この合成樹脂シート（Ｃ）を離型することにより、
第４図に示す如く成形と同時に水牛皺等複雑な凹凸模様
（ｂ）が明瞭に形設された成形体くＣ′）が得られる。At this time, in order to improve adhesion, a pressing die corresponding to the pattern may be pressed from below the sheet (C). By releasing this synthetic resin sheet (C),
As shown in FIG. 4, a molded product C') in which a complex uneven pattern (b) such as buffalo wrinkles is clearly formed is obtained at the same time as the molding.

この際、略１８５℃に加熱された合成樹脂シート（Ｃ）
は、模様型による真空成形時には１６０℃程度にまで低
下してしまい、離型時に更に７０〜８０℃まで冷却され
るようになる。上記真空成形時の温度（略１６０℃）は
材料の何形温度であり、この湿度において表面層本体（
１）に凹凸模様（ｂ）を形設するには該本体（１）が不
十分な軟化状態であるが、表皮（２）は十分な軟化状態
にあり、表面層（ａ）の表面に明瞭な凹凸模様（ｂ）を
確実に形設することができる。At this time, the synthetic resin sheet (C) heated to approximately 185°C
The temperature drops to about 160°C during vacuum forming using a patterned mold, and is further cooled to 70 to 80°C during mold release. The temperature at the time of vacuum forming (approximately 160°C) is the temperature of the material, and at this humidity the surface layer body (
Although the main body (1) is in an insufficiently softened state to form the uneven pattern (b) on the surface layer (1), the skin (2) is in a sufficiently softened state and there is a clear pattern on the surface of the surface layer (a). The uneven pattern (b) can be reliably formed.

なお、上述の表面層本体（１）と緩衝材層（５）は共に
、合成樹脂シート（Ｃ）の加熱時に該シート（Ｃ）が軟
化しすぎて下方に垂れ下がらないように保持する役割を
も果たしている。The surface layer body (1) and the cushioning material layer (5) both have the role of holding the synthetic resin sheet (C) so that it does not soften too much and sag downward when the sheet (C) is heated. Also plays a role.

本発明において上述の表面層本体（１）及び表皮（２）
の成分の重合度、両者の重合度の差、合成樹脂シート（
Ｃ）の加熱温度等の条件を適宜に組み合わせることによ
り、表皮（２）に、即ち表面層（ａ）の表面に凹凸模様
（ｂ）を明瞭に且つ確実に形設することができる。In the present invention, the above-mentioned surface layer main body (1) and epidermis (2)
The degree of polymerization of the components, the difference in the degree of polymerization between the two, the synthetic resin sheet (
By appropriately combining conditions such as the heating temperature in C), the uneven pattern (b) can be clearly and reliably formed on the skin (2), that is, on the surface of the surface layer (a).

内装材（△）を形成するには、前述の如く得られた成形
体くＣ′）にあらかじめ第１図に示された様に成形され
た骨材（４）を適宜な接着剤によって別工程で接着する
か、真空成形時に、上記骨材（４）を前述の押圧型（不
図示）に固定し、合成樹脂シート（Ｃ）の成形時に同時
に該シート−１凸　　　　− （Ｃ）に接着するか、または上記成形体くＣ′）の緩衝
材（２２）裏面にウレタン発泡によって骨材（４）を形
成する等の方法による。In order to form the interior material (△), the aggregate (4) previously formed as shown in FIG. or fix the above-mentioned aggregate (4) to the above-mentioned pressing die (not shown) during vacuum forming, and simultaneously adhere to the sheet-1 convex-(C) during molding of the synthetic resin sheet (C). Alternatively, a method such as forming an aggregate (4) on the back surface of the cushioning material (22) of the molded body C') by urethane foaming may be used.

表面層（ａ）を構成する物質としてポリ塩化ビニルの代
りにポリウレタン等を用いる場合は、表皮（２）と表面
層本体（１）におけるポリウレタンのイソシアネート成
分及びポリオール成分の種　　□類や重合度を適宜に選
択して構成し、これによって表皮（２）の軟化温度が表
面層本体（１）の軟化温度より適宜に低くなるようにす
るものである。When polyurethane or the like is used instead of polyvinyl chloride as the material constituting the surface layer (a), the type and degree of polymerization of the isocyanate component and polyol component of the polyurethane in the skin (2) and the surface layer body (1) must be determined. It is selected and configured as appropriate so that the softening temperature of the skin (2) is appropriately lower than the softening temperature of the surface layer main body (1).

表面層本体（１）と表皮（２）との組合せにおいて、両
者（１）（２）が同じ化学物質を主体として成り且つ該
化学物質が２種または２種以上のモノマー単位の共重合
体で成る場合、表面層本体（１）における各モノマー単
位の割合と表皮（２）における各モノマー単位の割合が
相互に異なるように構成するか、または表皮（２）にお
ける上記共重合体が表面層本体（１）における共重合体
より適宜に低分子になるように構成し、これによって表
皮（２）の軟化温度が表面層本体（１）の軟化温度より
も適宜に低くなるようにするものである。例えば、ポリ
プロピレンを基礎として他の化合物を共重合させた熱可
塑性エラストマーを用い、両者（１）（２）におけるポ
リプロピレンのモノマー単位の割合と他の化合物のモノ
マー単位の割合を適宜に変えてやるか、表皮におけると
記エラストマーが表面層本体（１）におけるエラストマ
ーより適宜に低分子になるようにすることにより表皮（
２）の軟化温度と表面層本体（１）の軟化温度よりも適
宜に低くなるようにすることができる。In the combination of the surface layer main body (1) and the epidermis (2), both (1) and (2) are mainly composed of the same chemical substance, and the chemical substance is a copolymer of two or more types of monomer units. If the copolymer in the surface layer body (1) is different from the proportion of each monomer unit in the skin (2), or the copolymer in the skin (2) is different from that in the skin (2), or The copolymer in (1) is configured to have an appropriately lower molecular weight than the copolymer in (1), so that the softening temperature of the skin (2) is appropriately lower than that of the surface layer main body (1). . For example, by using a thermoplastic elastomer made by copolymerizing polypropylene with another compound, the ratio of monomer units of polypropylene and the ratio of monomer units of other compounds in both (1) and (2) can be changed as appropriate. By making the elastomer in the epidermis have a lower molecular weight than the elastomer in the surface layer main body (1), the epidermis (
2) and the softening temperature of the surface layer main body (1) can be set appropriately lower than that of the surface layer main body (1).

本発明は更に、表面層本体（１）と表皮（２）とが互い
に異なる化学物質で構成されるようにし、これによって
表皮（２）の軟化温度が表面層本体（１）の軟化温度よ
りも適宜に低くなるようにしてもよいものである。互い
に異なる化学物質とは、当然のことながら主体となる化
学物質が単一のモノマー単位の重合体の場合、複数のモ
ノマー単位の共重合体の場合、両者を単に混合したもの
の場合等を含み、夫々のモノマー単位の種類やその種類
の数が互いに異なるようにするものである。この様な場
合、例えば表面層本体（１）としてポリ塩化ビニル樹脂
を用い、表皮（２）としウレタン系熱可塑性エラストマ
ーを用いる等の組合せが可能である。The present invention further provides that the surface layer main body (1) and the epidermis (2) are composed of different chemical substances, so that the softening temperature of the epidermis (2) is higher than that of the surface layer main body (1). It may be made lower as appropriate. Chemical substances that are different from each other naturally include cases where the main chemical substance is a polymer of a single monomer unit, a copolymer of multiple monomer units, a simple mixture of the two, etc. The types and number of types of monomer units are made to be different from each other. In such a case, a combination such as using polyvinyl chloride resin as the surface layer main body (1) and using a urethane thermoplastic elastomer as the skin (2) is possible.

なお、本発明の表面層（ａ）を構成する樹脂材料は、重
合体や共重合体が架橋構造となったものも含むものであ
る。In addition, the resin material constituting the surface layer (a) of the present invention includes those having a crosslinked structure of polymers and copolymers.

表皮及び表面層本体を構成する上記化学物質の種類は上
述の実施例に限定されるものではなく適宜に組み合わせ
て設定することができ、これに伴い成形の際の温度等の
条件を適宜に設定するものである。The types of chemical substances mentioned above constituting the skin and surface layer main body are not limited to the above-mentioned examples, but can be set in combination as appropriate, and conditions such as temperature during molding can be set as appropriate. It is something to do.

本発明において、表皮に凹凸模様を形設する方法は前述
の実施例に限定されるものではなく、また内装材として
は第１図のものに限らず、第４図に示したもの、更には
表面層本体に表皮を被覆した表面層（ａ）のみで構成す
ることも可能である。In the present invention, the method of forming the uneven pattern on the skin is not limited to the above-mentioned embodiments, and the interior material is not limited to the one shown in FIG. 1, but also the one shown in FIG. It is also possible to constitute only the surface layer (a) in which the surface layer main body is coated with an epidermis.

また、内装材が必ずしも折曲部を有する立体構造である
必要はなく、シート状の様な平坦状に形成されていても
よい。更に表皮（２）の外面がウレタン樹脂やアクリル
樹脂等によって表面仕上げされていても構わない。Further, the interior material does not necessarily have to have a three-dimensional structure having a bent portion, and may be formed in a flat shape such as a sheet. Furthermore, the outer surface of the skin (2) may be finished with urethane resin, acrylic resin, or the like.

次に本発明の実施の具体例、及びこれによって得られた
水牛皺の凹凸模様の評価結果について記す。凹凸模様の
評価に際しては、従来の材料（比較例）に凹凸模様を形
成させた場合と比較して表わす。Next, specific examples of implementing the present invention and evaluation results of the uneven pattern of buffalo wrinkles obtained thereby will be described. When evaluating the uneven pattern, a comparison is made with a case where an uneven pattern is formed on a conventional material (comparative example).

友ｉ■Ω （１）表皮 配合：ポリ塩化ビニル樹脂　　１００重量部（重合度８
００） トリメリット酸系可塑剤　６４重量部 エポキシ系安定剤　　　　８重量部 耐熱耐光安定剤　　　　　４重量部 顔　　　料　　　　　　　　　　　　５重量部厚さ：０
．２履 表面層本体との接着：熱融着 （２）表面層本体 配合：ポリ塩化ビニル樹脂　　　７０重量部（重合度２
，５００） 高温時伸び改質樹脂　　　３０重量部 トリメリツｌ−酸系可塑剤　５４重量部エポキシ系安定
剤　　　　６重量部 耐熱両光安定剤　　　　　４重量部 顔　　料　　　　　　　　　　５重量部厚さ：　　０．
６ｍ 緩衝材層との接着：溶剤タイプウレタン系接着剤 （３）緩衝材層 物質：電子線架橋ポリプロピレン発泡体（１８倍発泡） 厚さ：４ｍｍ ル較贋 （１）表面層本体 配合：ポリ塩化ビニル樹脂　　　７５重量部（重合度１
，２００） 高温時伸び改質樹脂　　　２５重量部 トリメリット酸系可塑剤　２８重量部 エポキシ系安定剤　　　　　７重量部 耐熱耐光安定剤　　　　　４重量部 厚さ二　０６＃ 緩衝材層との接着：溶剤タイプウレタン系接着剤 （２）緩衝材層 物質：電子線架橋ポリウレタン発泡体 く１８倍発泡） 厚さ：４履 夫五里迎 （１）表皮 配合ニオレフイン系熱可塑性エラストマー（ＨＦＲ＝２
０．ショアーＡ　＝　６３）１００重量部耐熱耐光安定
剤　　　　　０５５重量 部顔　　料　　　　　　　　　　　　　　５重量部（注
）　ＨＦ８　２３０℃、　１０に９．　ｑ／１０ｍ１ｎ
、、ＪＩＳＫ７２０１０厚さ：　　０．１ｍ 表皮本体との接着：熱融着 （２）表面層本体 配合ニオレフイン系熱可塑性エラストマー（ＨＦＲ＝２
．ショアーＡ＝９５）７０重量部ポリプロピレン　　　
　　　３０重量部耐耐熱光安定剤　　　　　０５５重量 部顔　　料　　　　　　　　　　　　　　５重量部厚さ
二　０２＃ 緩衝材層との接着：熱融着 （３）緩衝材層 物質二重子線架橋ポリエチレンフオーム（３０倍発泡） 厚さ：　　２．５＃ 友凰五や （１）表皮 配合：ポリエーテル系ウレタン熱可塑性エラストマー（
ＪＩＳ硬度Ａ＝８０）　　１００重量部滑剤（ポリエチ
レンワックス）１重量部顔　　　料　　　　　　　　　
　　　　　２重量部厚さ：　　０．２ｍｍ 表面層本体との接着：熱融着 （２）表面層本体 配合：ポリ塩化ビニル樹脂　　　７０重量部（重合度２
，５００） 高温時伸び改質樹脂　　　３０重量部 トリメリット酸系可塑剤　５４重量部 エポキシ系安定剤　　　　６重量部 耐熱両光安定剤　　　　　４重量部 顔　　　料　　　　　　　　　　　　　５重量部厚さ：
　　０．６ｍｍ 緩衝材層との接着：溶剤タイプウレタン系接着剤 （３）緩衝材層 物質：電子線架橋ポリプロピレン発泡体く１８倍発泡） 厚さ：４ｍ −１ρ　　　− 凹凸模様の転写性の評価結果 ＊１．シート表面温度：シート加熱直後の表面温度＊２
．凹凸模様の転写性：凹凸模様の深さ、鮮明度合につい
て目視比較 （優）◎〉○〉Δ（劣） 上記実施例■〜■において、実施例■は特許請求の範囲
（２）に、実施例■は特許請求の範囲（３）に、実施例
■は特許請求の範囲（４）に夫々該当するものである。Tomoi■Ω (1) Skin composition: 100 parts by weight of polyvinyl chloride resin (degree of polymerization 8
00) Trimellitic acid plasticizer 64 parts by weight Epoxy stabilizer 8 parts by weight Heat and light stabilizer 4 parts by weight Pigment 5 parts by weight Thickness: 0
．． 2 Adhesion to the shoe surface layer body: Heat fusion (2) Surface layer body composition: 70 parts by weight of polyvinyl chloride resin (polymerization degree 2
, 500) High temperature elongation modified resin 30 parts by weight Trimeriz l-acid plasticizer 54 parts by weight Epoxy stabilizer 6 parts by weight heat and light stabilizer 4 parts by weight Pigment 5 parts by weight Thickness: 0.
6m Adhesion to cushioning layer: Solvent type urethane adhesive (3) Cushioning layer material: Electron beam crosslinked polypropylene foam (18 times foamed) Thickness: 4mm (1) Surface layer main composition: Polychloride Vinyl resin 75 parts by weight (degree of polymerization 1
, 200) High temperature elongation modified resin 25 parts by weight Trimellitic acid plasticizer 28 parts by weight Epoxy stabilizer 7 parts by weight Heat and light stabilizer 4 parts by weight Thickness 2 06# Adhesion to buffer layer: Solvent type urethane Adhesive (2) Cushioning layer material: Electron beam crosslinked polyurethane foam (expanded 18 times) Thickness: 4 layers (1) Niolefin thermoplastic elastomer with skin added (HFR=2)
0. Shore A = 63) 100 parts by weight Heat and light stabilizer 055 parts by weight Pigment 5 parts by weight (Note) HF8 230°C, 10 to 9. q/10m1n
,, JISK72010 Thickness: 0.1m Adhesion to the skin body: Heat fusion (2) Surface layer body blended niolefin thermoplastic elastomer (HFR=2
．． Shore A=95) 70 parts by weight polypropylene
30 parts by weight Heat-resistant and light stabilizer 055 parts by weight Pigment 5 parts by weight Thickness 2 02# Adhesion with cushioning material layer: Heat fusion (3) Cushioning material layer material Double coron beam cross-linked polyethylene foam (30 times foaming) Thickness S: 2.5# Tomogoya (1) Skin composition: Polyether urethane thermoplastic elastomer (
JIS hardness A=80) 100 parts by weight Lubricant (polyethylene wax) 1 part by weight Pigment
2 parts by weight Thickness: 0.2 mm Adhesion to the surface layer main body: Heat fusion (2) Surface layer main composition: 70 parts by weight polyvinyl chloride resin (polymerization degree 2
, 500) High temperature elongation modified resin 30 parts by weight Trimellitic acid plasticizer 54 parts by weight Epoxy stabilizer 6 parts by weight Heat and light stabilizer 4 parts by weight Pigment 5 parts by weight Thickness:
0.6mm Adhesion to cushioning material layer: Solvent type urethane adhesive (3) Cushioning material layer material: Electron beam cross-linked polypropylene foam (expanded 18 times) Thickness: 4m -1ρ - Evaluation results of uneven pattern transferability *1. Seat surface temperature: Surface temperature immediately after sheet heating *2
．． Transferability of uneven pattern: Visual comparison of depth and sharpness of uneven pattern (excellent) ◎〉○〉Δ (poor) In the above Examples ■ to ■, Example ■ is implemented according to claim (2). Example (2) falls under claim (3), and Example (2) falls under claim (4).

上記の結果より、本発明のもの（実施例■〜■）は、い
ずれも従来のもの（比較例）に比べてシート表面温度の
低い域でも凹凸模様の転写性が優れているといえる。From the above results, it can be said that the products of the present invention (Examples ① to ①) are all superior in the transferability of the uneven pattern even in a region where the sheet surface temperature is lower than that of the conventional product (Comparative Example).

また本発明のものは上述の凹凸模様が長期間にわたって
保持され、形状記憶性に優れたものである。Furthermore, the material of the present invention retains the above-mentioned uneven pattern for a long period of time and has excellent shape memory.

なお、本発明者の実験によると、高展開性を付与した本
発明の表面層本体自体も従来の表面層本体より凹凸模様
の転写性が優れているという結果が得られた。According to experiments conducted by the present inventors, it was found that the surface layer itself of the present invention, which has been given high spreadability, has better transferability of uneven patterns than the conventional surface layer itself.

〈発明の効果〉 本発明によれば、高展開性を付与した表面層本体によっ
て表面層の基本構造が構成されるので、成形時に引き延
ばされる部位においても表面層が破れないようにするこ
とができると共に、表面層本体に被覆した表皮の軟化温
度が表面層本体より適宜に低いので、成形時に表皮がよ
り軟らかい状態で該表皮に明瞭な凹凸模様を確実に転写
することができる。<Effects of the Invention> According to the present invention, since the basic structure of the surface layer is constituted by the surface layer body imparted with high expandability, it is possible to prevent the surface layer from tearing even at the portion where it is stretched during molding. In addition, since the softening temperature of the skin coated on the surface layer body is suitably lower than that of the surface layer body, a clear uneven pattern can be reliably transferred to the skin while the skin is softer during molding.

従って、成形時に表面層が破れないようにすることがで
きると共に、従来の表面層の硬度を維持させながら、表
皮によって表面層の表面における凹凸模様の転写性を向
上させ、表面層の表面に形状記憶性に優れた凹凸模様を
明瞭に且つ確実に形設することができる。Therefore, it is possible to prevent the surface layer from tearing during molding, and while maintaining the conventional hardness of the surface layer, the transferability of the uneven pattern on the surface of the surface layer is improved by the skin, and the shape is formed on the surface of the surface layer. A concavo-convex pattern with excellent memorability can be clearly and reliably formed.

依って、所期の目的を達成し得る。Therefore, the intended purpose can be achieved.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本癲明の一実施例を示し、第１図は内装材の一部
省略斜視図、第２図は拡大断面図、第３図は合成樹脂シ
ートの断面図、第４図は成形体の断面図、第５図は従来
例を示す断面図である。 図中 Ａ：内装材　　１：表面層本体　　２：表皮３：凹凸模
様The drawings show one embodiment of the present invention; Fig. 1 is a partially omitted perspective view of the interior material, Fig. 2 is an enlarged cross-sectional view, Fig. 3 is a cross-sectional view of a synthetic resin sheet, and Fig. 4 is a molded product. FIG. 5 is a sectional view showing a conventional example. A in the figure: Interior material 1: Surface layer main body 2: Outer skin 3: Uneven pattern

Claims (4)

【特許請求の範囲】[Claims] （１）合成樹脂で形成し、高展開性を付与した表面層本
体の表面に該表面層本体より適宜に軟化温度を低くした
表皮を被覆し、該表皮に凹凸模様を形設した内装材の表
面層。(1) An interior material in which the surface of a surface layer body made of synthetic resin and imparted with high expandability is coated with a skin whose softening temperature is suitably lower than that of the surface layer body, and an uneven pattern is formed on the skin. surface layer. （２）前記表面層本体と表皮とが同じ化学物質を主体と
して成り且つ該化学物質が単一の化合物の重合体で成り
、表皮における上記重合体の重合度または分子量が表面
層本体における重合体の重合度または分子量より適宜に
小さくなるようにしたことを特徴とする特許請求の範囲
第１項記載の内装材の表面層。(2) The surface layer body and the epidermis are mainly composed of the same chemical substance, and the chemical substance is a polymer of a single compound, and the degree of polymerization or molecular weight of the polymer in the epidermis is higher than that of the polymer in the surface layer body. 2. The surface layer of an interior material according to claim 1, wherein the surface layer has a polymerization degree or molecular weight that is appropriately smaller than the polymerization degree or molecular weight of the interior material. （３）前記表面層本体と表皮とが同じ化学物質を主体と
して成り且つ該化学物質が複数のモノマー単位の共重合
体で成り、上記表面層本体における各モノマー単位の割
合と表皮における各モノマー単位の割合が相互に異なる
か、または表皮における上記共重合体の重合度が表面層
本体における共重合体の重合度より適宜に小さくなるよ
うにしたことを特徴とする特許請求の範囲第１項記載の
内装材の表面層。(3) The surface layer body and the epidermis are mainly composed of the same chemical substance, and the chemical substance is a copolymer of a plurality of monomer units, and the ratio of each monomer unit in the surface layer body and each monomer unit in the epidermis is The proportions of the copolymers are different from each other, or the degree of polymerization of the copolymer in the epidermis is appropriately smaller than the degree of polymerization of the copolymer in the main body of the surface layer. The surface layer of interior materials. （４）前記表面層本体と表皮とが相互に異なる化学物質
であることを特徴とする特許請求の範囲第１項記載の内
装材の表面層。(4) The surface layer of an interior material according to claim 1, wherein the surface layer main body and the skin are made of different chemical substances.
JP63011495A 1988-01-20 1988-01-20 Automotive interior materials Expired - Fee Related JP2574841B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP63011495A JP2574841B2 (en) 1988-01-20 1988-01-20 Automotive interior materials
GB8900196A GB2214868B (en) 1988-01-20 1989-01-05 Panel or surfacing material provided with surface effect and method of forming same
CA000588109A CA1337111C (en) 1988-01-20 1989-01-12 Surface layer of interior article
BE8900050A BE1003764A4 (en) 1988-01-20 1989-01-18 Surface layer of an article for the passenger.
US07/985,365 US5242738A (en) 1988-01-20 1992-12-03 Surface layer of interior article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63011495A JP2574841B2 (en) 1988-01-20 1988-01-20 Automotive interior materials

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JPH01186322A true JPH01186322A (en) 1989-07-25
JP2574841B2 JP2574841B2 (en) 1997-01-22

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JP63011495A Expired - Fee Related JP2574841B2 (en) 1988-01-20 1988-01-20 Automotive interior materials

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JP (1) JP2574841B2 (en)
BE (1) BE1003764A4 (en)
CA (1) CA1337111C (en)
GB (1) GB2214868B (en)

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DE102011081988A1 (en) * 2011-09-01 2013-03-07 Lisa Dräxlmaier GmbH Center console in lightweight construction

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JPS6139657U (en) * 1984-08-16 1986-03-13 積水化学工業株式会社 Automotive ceiling material

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JPS6139657U (en) * 1984-08-16 1986-03-13 積水化学工業株式会社 Automotive ceiling material

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Publication number Priority date Publication date Assignee Title
WO2019116674A1 (en) * 2017-12-14 2019-06-20 Ｔｂカワシマ株式会社 Inclined sheet material, method for manufacturing inclined sheet material, and emboss molding material

Also Published As

Publication number Publication date
CA1337111C (en) 1995-09-26
BE1003764A4 (en) 1992-06-09
JP2574841B2 (en) 1997-01-22
GB2214868A (en) 1989-09-13
GB2214868B (en) 1992-02-26
GB8900196D0 (en) 1989-03-01

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