JPH0525779A - Artificial leathery formed laminate and method for forming the same - Google Patents
Artificial leathery formed laminate and method for forming the sameInfo
- Publication number
- JPH0525779A JPH0525779A JP771091A JP771091A JPH0525779A JP H0525779 A JPH0525779 A JP H0525779A JP 771091 A JP771091 A JP 771091A JP 771091 A JP771091 A JP 771091A JP H0525779 A JPH0525779 A JP H0525779A
- Authority
- JP
- Japan
- Prior art keywords
- laminated
- plastic film
- film
- laminated sheet
- leathery
- 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.)
- Pending
Links
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【0001】[0001]
【従来の技術】本発明は延伸プラスチックフィルムと基
布とを一体成形した擬皮状成形積層体とその成形方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pseudo skin-like molded laminate in which a stretched plastic film and a base cloth are integrally molded, and a molding method thereof.
【0002】[0002]
【従来の技術】従来、乗用車などの擬皮状成形積層体か
らなる内装材には、織物又は不織布等の基布上にポリウ
レタン、ポリ塩化ビニル等の発泡シート層を形成した合
成皮革と成形可能な樹脂基板とを貼り合わせて真空成形
や圧空成形したものが使用されている。これら合成皮革
は伸び易く一般に300%以上の伸びを有するため、前
述の成形可能な樹脂基板の成形条件下で容易に一体成形
することができる。しかしながら、成形された製品の合
成皮革の表面は耐摩耗性に劣り、しかも、傷付き易く、
汚れ易い欠点がある。さらに、表面の汚れをガソリンや
シンナー等の溶剤で拭きとり、綺麗にしようとすると、
膨潤、色落ち、破損等を生じるという問題がある。2. Description of the Related Art Conventionally, as an interior material composed of a pseudo-skin-like molded laminate of a passenger car or the like, it can be molded with synthetic leather in which a foamed sheet layer such as polyurethane or polyvinyl chloride is formed on a base cloth such as a woven fabric or a non-woven fabric. It is used that is vacuum-formed or pressure-formed by bonding with another resin substrate. Since these synthetic leathers are easily stretched and generally have an elongation of 300% or more, they can be easily integrally molded under the above-mentioned molding conditions of the moldable resin substrate. However, the surface of the synthetic leather of the molded product is inferior in abrasion resistance, and is easily scratched,
There is a drawback that it easily gets dirty. Furthermore, if you try to clean the surface by wiping it off with a solvent such as gasoline or thinner,
There is a problem that swelling, discoloration, breakage, etc. occur.
【0003】このような欠点や問題は、合成皮革の表面
に強靭で耐溶剤性の寸法安定性に優れた延伸プラスチッ
クフィルム(以下延伸フィルムと略す)を貼り合わせる
ことにより解消可能である。しかしながら、この延伸フ
ィルムは伸びが小さく一般に200%以下のため屈曲や
湾曲等の大変形を与えて成形する際に破れ易い欠点があ
る。この欠点は延伸フィルムを、その融点付近の温度ま
で加熱して溶融成形することにより解消可能であるが、
この場合は延伸フィルムが本来有する強靭性や寸法安定
性が失われたり、擬皮状凹凸模様が消失したり、色調が
変褪色したりするという問題があり、大きく屈曲成形す
る分野への利用を困難にしていた。Such drawbacks and problems can be solved by laminating a stretched plastic film (hereinafter abbreviated as a stretched film) which is tough, solvent-resistant and excellent in dimensional stability on the surface of synthetic leather. However, since the stretched film has a small elongation and is generally 200% or less, it has a drawback that it is easily deformed by being greatly deformed such as bent or curved. This drawback can be solved by heating the stretched film to a temperature near its melting point and melt-molding it.
In this case, there is a problem that the toughness and dimensional stability originally possessed by the stretched film are lost, the pseudo skin-like unevenness pattern is lost, and the color tone is discolored. It was difficult.
【0004】[0004]
【発明が解決しようとする課題】本発明の目的は、上述
のような従来の欠点や問題を解消し、延伸フィルムを基
布に積層した擬皮状凹凸模様を有する積層シートから、
延伸フィルムの破れや劣化、擬皮状凹凸模様の消失並び
に色調の変褪色を生じさせることなく屈曲成形すること
ができる擬皮状成形積層体及びその成形方法を提供する
ことにある。The object of the present invention is to solve the above-mentioned conventional drawbacks and problems, and to obtain a laminated sheet having a pseudo skin-like uneven pattern in which a stretched film is laminated on a base fabric,
It is an object of the present invention to provide a pseudo skin-like molded laminate that can be bent and molded without causing breakage or deterioration of a stretched film, disappearance of a pseudo skin-like uneven pattern, and discoloration of color tone, and a molding method thereof.
【0005】[0005]
【課題を解決するための手段】このような目的を達成す
る本発明の擬皮状成形積層体は、延伸フィルムAと、ク
ッション層Bと、基布CとをA/B/Cの順序に積層し
た積層シートが屈曲成形されていることを特徴とするも
のである。また、本発明による擬皮状成形積層体の成形
方法は、延伸フィルムAと基布Cとをクッション層Bを
介して積層し、この積層シートを前記延伸フィルムAの
融点より50℃以上低い温度に加熱して屈曲成形するこ
とを特徴とするものである。In the pseudo-leather molding laminate of the present invention which achieves the above object, a stretched film A, a cushion layer B and a base cloth C are arranged in the order of A / B / C. It is characterized in that the laminated laminated sheets are formed by bending. In addition, the method for forming a pseudo skin-like formed laminate according to the present invention is a method in which a stretched film A and a base cloth C are laminated via a cushion layer B, and the laminated sheet is heated at a temperature lower than the melting point of the stretched film A by 50 ° C. or more. It is characterized in that it is heated to and bent to be molded.
【0006】本発明による擬皮状成形積層体は延伸フィ
ルムAがクッション層Bを介して基布Cに積層されてい
るので、そのクッション層Bを屈曲成形するに際して延
伸フィルムAにかかる張力を吸収し、強靭性を保持して
破れの発生を防止する。また、そのクッション層Bによ
る張力の吸収作用によって擬皮状凹凸模様の消失を防止
する。Since the stretched film A is laminated on the base cloth C via the cushion layer B in the pseudo skin-like laminate according to the present invention, the tension applied to the stretched film A when the cushion layer B is flexibly formed is absorbed. However, it maintains toughness and prevents breakage. In addition, the cushion layer B absorbs tension to prevent the pseudo skin-like uneven pattern from disappearing.
【0007】また、本発明の成形方法は、屈曲成形に際
しクッション層Bによって延伸フィルムAに発生する張
力を吸収緩和すると共に延伸フィルムAの融点よりも5
0℃以上低い温度に加熱し、擬皮状成形積層体の延伸フ
ィルムAに破れや劣化を生じさせたり、その擬皮状凹凸
模様を消失しないようにし、かつ色調の変褪色を防止す
る。In addition, the molding method of the present invention absorbs and relaxes the tension generated in the stretched film A by the cushion layer B during the flex-molding and has a temperature of 5 or more than the melting point of the stretched film A.
It is heated to a temperature of 0 ° C. or lower to prevent the stretched film A of the pseudo skin-like molded laminate from tearing or deteriorating, the pseudo skin-like uneven pattern not to disappear, and the discoloration of the color tone to be prevented.
【0008】以下、図を参照することにより本発明を具
体的に説明する。図1及び図2は、それぞれ本発明によ
る擬皮状成形積層体の一例を示す断面図であり、1は乗
用車の内装材などとして屈曲成形された擬皮状成形積層
体である。図1においては、擬皮状成形積層体1は樹脂
基板Dの表面に積層シート2が屈曲成形されて一体化さ
れている。また、図2では、擬皮状成形積層体1は単独
でそのまま屈曲成形されている。The present invention will be described in detail below with reference to the drawings. 1 and 2 are cross-sectional views each showing an example of the pseudo skin-like molded laminate according to the present invention, in which 1 is a bend-molded pseudo skin-like molded laminate as an interior material for passenger cars. In FIG. 1, the pseudo skin-like laminated body 1 is formed by bending and laminating a laminated sheet 2 on the surface of a resin substrate D. Further, in FIG. 2, the pseudo skin-like molded laminate 1 is independently bent and formed as it is.
【0009】図3は積層シート2の断面図であり、積層
シート2は基布Cの上に、内部に多数のボイド4を有す
るクッション層Bと印刷又は顔料,染料などの着色層3
を介して延伸フィルムAを積層した構造からなってい
る。この図3の積層シート2は揉み加工を施すことによ
り、図4に示すように、延伸フィルムAの表面に多数の
皺状の擬皮状凹凸模様を形成することができる。FIG. 3 is a sectional view of the laminated sheet 2. The laminated sheet 2 has a cushion layer B having a large number of voids 4 therein and a colored layer 3 for printing or pigments, dyes, etc. on a base cloth C.
It has a structure in which stretched films A are laminated via By subjecting the laminated sheet 2 of FIG. 3 to a rubbing process, as shown in FIG. 4, a large number of wrinkle-like pseudo skin-like concavo-convex patterns can be formed on the surface of the stretched film A.
【0010】延伸フィルムAとしては、ポリエステル、
ポリアミド、ポリプロピレン等からなる延伸フィルム、
好ましくはバランスよく成形することができる二軸延伸
フィルムがよい。二軸延伸フィルムの中では、耐熱性に
優れ、成形加工温度を高くすることができるポリエステ
ルホモポリマーや共重合体等からなるポリエステルフィ
ルムを使用することが望ましい。As the stretched film A, polyester,
Stretched film made of polyamide, polypropylene, etc.,
A biaxially stretched film that can be formed with good balance is preferable. Among the biaxially stretched films, it is desirable to use a polyester film made of a polyester homopolymer or a copolymer, which has excellent heat resistance and can increase the molding processing temperature.
【0011】また、クッション層Bとしては、擬皮状成
形積層体1の表層の延伸プラスチックフィルムAに生じ
る張力を吸収するクッション性を有するもの、好ましく
は内部に多数のボイド等を有する多孔性の延伸フィルム
を使用するのがよい。このような多孔性延伸フィルムは
多量のフィラーを含有する未延伸フィルムを成形し、こ
の未延伸フィルムを延伸することにより、前記フィラー
を核として多数のボイドを形成するようにすることによ
り得られる。このような多孔性延伸フィルム(クッショ
ン層B)中のボイド4は、図3の状態のものを揉み加工
やエンボス加工等の機械的な皺付け加工により、その一
部を圧潰して凹凸模様の永久歪みを作り、この永久歪み
により、図4のように表面の延伸フィルムAに擬皮状凹
凸模様が形成されるようにする。The cushion layer B has a cushioning property for absorbing the tension generated in the stretched plastic film A on the surface layer of the pseudo skin-like molded laminate 1, and preferably has a porous structure having many voids inside. It is preferable to use a stretched film. Such a porous stretched film is obtained by molding an unstretched film containing a large amount of filler, and stretching the unstretched film to form a large number of voids with the filler as a core. The voids 4 in such a porous stretched film (cushion layer B) have a concavo-convex pattern formed by crushing a part of the state shown in FIG. 3 by mechanical wrinkling such as rubbing or embossing. A permanent strain is created, and the permanent strain causes a pseudo skin-like uneven pattern to be formed on the stretched film A on the surface as shown in FIG.
【0012】このような多孔性延伸フィルム、すなわち
クッション層Bに使用される樹脂としては製膜性を有す
るポリエステル、ポリアミド、ポリプロピレン等の樹脂
を挙げることができる。また、これらの樹脂に添加する
フィラーとしては、樹脂との相溶性を異にする無機粒子
及び有機粒子のいずれも使用可能である。無機粒子とし
ては、炭酸カルシウム,炭酸マグネシウム,アルミナ,
珪酸アルミニウム,カオリン,カオリナイト,タルク,
クレイ,珪藻土,ドロマイト,酸化チタン,酸化マグネ
シウム,ゼオライトなどを挙げることができる。これら
無機粒子は単独で使用しても2種以上を混合して使用し
てもよい。また、有機粒子としては、樹脂がポリエステ
ルの場合は、ポリエステルとの剥離性の良好なポリエチ
レン、ポリプロピレン、ポリブテン、ポリメチルペンテ
ン等のポリオレフィン樹脂粒子があり、これらは単独又
は2種以上を併用することができる。As the resin used for such a porous stretched film, that is, the cushion layer B, resins such as polyester, polyamide and polypropylene having film forming property can be mentioned. Further, as the filler added to these resins, both inorganic particles and organic particles having different compatibility with the resin can be used. The inorganic particles include calcium carbonate, magnesium carbonate, alumina,
Aluminum silicate, kaolin, kaolinite, talc,
Examples thereof include clay, diatomaceous earth, dolomite, titanium oxide, magnesium oxide, and zeolite. These inorganic particles may be used alone or in combination of two or more. As the organic particles, when the resin is polyester, there are polyolefin resin particles such as polyethylene, polypropylene, polybutene, and polymethylpentene, which have good releasability from the polyester, and these may be used alone or in combination of two or more kinds. You can
【0013】これらフィラーの樹脂に対する添加量は10
〜40重量%の範囲が好ましく、さらに好ましくは15〜35
重量%がよい。フィラーの添加量が10重量%よりも少な
いとボイドの形成が少なく、揉み加工等の機械的皺付け
加工によって表面に凹凸模様を形成することが難しい。
また、40重量%を越えるほどに多いとボイドが多くなり
すぎて延伸時に破れを生じ易くなったり、多孔性延伸フ
ィルムが脆くなったりする。The amount of these fillers added to the resin is 10
The range is preferably 40 to 40% by weight, more preferably 15 to 35.
Weight% is good. When the amount of the filler added is less than 10% by weight, the formation of voids is small and it is difficult to form an uneven pattern on the surface by mechanical wrinkling such as rubbing.
On the other hand, if the amount exceeds 40% by weight, the number of voids becomes so large that tears are likely to occur during stretching, or the porous stretched film becomes brittle.
【0014】基布Cとしては、編織物、不織布、紙、合
成樹脂製の可撓性基体等の積層体2を成形後縫製した
り、貼り合わせたりすることができるものを使用するの
がよい。また、織物の表面を起毛し、この起毛面に可撓
性樹脂を含浸すれば、クッション層Bの機能を併せ有す
るものにすることができる。また、樹脂基板Dとしては
積層シート2の形態を保持せしめるものであればよく、
好ましくは加熱により塑性変形する成形可能な素材から
なるものがよい。このような樹脂基板Dとしては、例え
ば、ポリエチレン、ポリプロピレン、ポリウレタン等か
らなる発泡シート、熱可塑性樹脂シートがある。熱可塑
性樹脂としては成形時熱可塑化状態であるが成形後は硬
化する樹脂であってもよい。また、熱可塑性樹脂は単体
のシートとして使用してもよいし、この熱可塑性樹脂を
紙、不織布、織物等に含浸した複合体として使用しても
よい。As the base fabric C, it is preferable to use a fabric which can be sewn or laminated after the laminated body 2 such as a knitted woven fabric, a non-woven fabric, paper, a flexible base made of synthetic resin or the like is molded. . If the surface of the woven fabric is raised and the raised surface is impregnated with a flexible resin, the cushion layer B can also have the function. Further, the resin substrate D may be any one as long as it can maintain the form of the laminated sheet 2,
It is preferably made of a moldable material that is plastically deformed by heating. Examples of such a resin substrate D include a foamed sheet made of polyethylene, polypropylene, polyurethane or the like, or a thermoplastic resin sheet. The thermoplastic resin is a resin which is in a thermoplastic state at the time of molding, but may be a resin which is cured after molding. Further, the thermoplastic resin may be used as a single sheet, or may be used as a composite in which the thermoplastic resin is impregnated in paper, non-woven fabric, woven fabric or the like.
【0015】さらに、延伸フィルムAとクッション層B
との間には、着色層3として図示するように、顔料又は
染料などの印刷着色層、着色した接着剤層、蒸着層を介
在させることができる。色調としては、単一色、柄印刷
等の着色やメタリック調等がある。このような着色層は
延伸フィルムAに被覆されて保護されるため色落ちや変
褪色がなく、その耐久性を向上することができる。さら
に、上記延伸フィルムAの表面には硬度化処理を施した
り、印刷を行うことができる。Further, the stretched film A and the cushion layer B
A printed color layer such as a pigment or a dye, a colored adhesive layer, and a vapor deposition layer can be interposed between and, as shown in FIG. The color tone includes a single color, coloring such as pattern printing, metallic tone and the like. Since such a colored layer is covered and protected by the stretched film A, there is no discoloration or discoloration, and the durability can be improved. Furthermore, the surface of the stretched film A can be subjected to a hardening treatment or printing.
【0016】上述の積層シート2を使用して、図1に示
すような擬皮状成形積層体を屈曲成形する方法として
は、例えば、積層シート2と樹脂基板Dとを積層した
後、これを金型に挿入して一体成形する方法や積層シー
ト2を樹脂基板Dに接着層を介して重ね合わせ、これを
金型に挿入して一体成形する方法がある。この場合の成
形温度は、積層シートを構成する延伸フィルムAの融点
より50℃以上低い温度に加熱することが重要である。
このような成形温度で屈曲成形することによって、クッ
ション層Bの張力吸収作用との相乗効果により延伸フィ
ルムAの破断や劣化を防止しながら積層シートを屈曲成
形することができる。また、延伸フィルムAの破れや劣
化を防止すると共に賦形された擬皮状凹凸模様の消失や
積層シートの色調の変褪色を防止することができる。As a method of flex-molding a pseudo skin-like molded laminate as shown in FIG. 1 using the above-mentioned laminated sheet 2, for example, after laminating the laminated sheet 2 and the resin substrate D, this is used. There are a method of inserting into the mold and integrally molding, and a method of superposing the laminated sheet 2 on the resin substrate D via an adhesive layer and inserting this into the mold to integrally mold. In this case, it is important to heat the molding temperature to a temperature lower than the melting point of the stretched film A constituting the laminated sheet by 50 ° C. or more.
By flex-forming at such a molding temperature, it is possible to flex-form the laminated sheet while preventing the stretched film A from breaking or deteriorating due to the synergistic effect with the tension absorbing action of the cushion layer B. In addition, it is possible to prevent the stretched film A from being broken or deteriorated, and also to prevent the formed pseudo skin-like uneven pattern from disappearing and the color tone of the laminated sheet from discoloring.
【0017】接着剤としては、アクリル酸エステル接着
剤,熱硬化型のウレタン系接着剤,エポキシ系接着剤等
の合成樹脂,ゴム系接着剤等がある。これら接着剤は接
着面にコーテングしたり、塗布したり、或いは重ね合わ
せ面に粉末状の接着剤を散布し、これを加熱溶融して接
着させたりすることができる。このような本発明の擬皮
状成形積層体は、車、船舶、建造物の内装材のほか、家
具、調度品、ケース、バッグなどの外装材としても使用
可能である。Examples of the adhesive include acrylic ester adhesive, thermosetting urethane adhesive, synthetic resin such as epoxy adhesive, and rubber adhesive. These adhesives can be coated or applied to the adhesive surface, or a powdery adhesive agent can be sprinkled on the overlapping surface and heated and melted for adhesion. Such a pseudo skin-like molded laminate of the present invention can be used not only as an interior material for cars, ships and buildings, but also as an exterior material for furniture, furniture, cases, bags and the like.
【0018】[0018]
実施例1
JISZ−8741方法3(60度鏡面光沢)に規定さ
れている表面光沢度17、厚さ25μの二軸延伸ポリエ
ステルフィルム(東レ株式会社製“ルミラー”X44タ
イプ)と厚さ60μの二軸延伸多孔性ポリプロピレンフ
ィルム(東レ株式会社製“トレファン”YP56タイ
プ)とを、顔料を配合したポリウレタン系接着剤からな
る着色印刷接着剤層を介して積層し、さらに前記二軸延
伸多孔性ポリプロピレンフィルム側にポリウレタン系接
着剤を用いてポリエステル/レーヨン織物の基布を貼り
合わせて積層シートを製作した。Example 1 A biaxially stretched polyester film having a surface gloss of 17 and a thickness of 25 μ (“Lumirror” X44 type manufactured by Toray Industries, Inc.) defined by JIS Z-8741 Method 3 (60-degree specular gloss) and a thickness of 60 μm. An axially stretched porous polypropylene film ("Trephan" YP56 type manufactured by Toray Industries, Inc.) is laminated via a colored printing adhesive layer made of a polyurethane adhesive containing a pigment, and the biaxially stretched porous polypropylene is further laminated. A polyester / rayon fabric base fabric was attached to the film side using a polyurethane adhesive to produce a laminated sheet.
【0019】この積層シートに、ヤマサ技研株式会社製
クランピングマシンYSタイプを用いて、常温で0.5
m/分の皺付け揉み加工を施して表面に擬皮状凹凸模様
を形成した。この積層シートの基布面に、厚さ3mmの
ポリプロピレン発泡シート(東レ株式会社製“ペフ”P
PAM25030)の表面をフレーム(炎)処理して溶
融状態とした後積層し接着させた。このポリプロピレン
発泡シートを設けた積層シートをR=2.0cmの蓋型
金型(タテ30cm×ヨコ57cm)にセットし、前記
凹凸模様を有する二軸延伸ポリエステルフィルムの面を
約80℃に加熱すると共にポリプロピレン発泡シート側
を約100℃に加熱して約45秒間真空圧空成形した。
次いで冷却(2分間)し金型から擬皮状成形積層体を取
り出した。This laminated sheet was applied with a clamping machine YS type manufactured by Yamasa Giken Co., Ltd. at a room temperature of 0.5.
A wrinkle rubbing process of m / min was applied to form a pseudo skin-like uneven pattern on the surface. On the base cloth surface of this laminated sheet, a polypropylene foam sheet having a thickness of 3 mm (“Pef” P manufactured by Toray Industries, Inc.)
The surface of PAM25030) was subjected to frame (flame) treatment to make it a molten state, and then laminated and adhered. The laminated sheet provided with the polypropylene foam sheet is set in a lid mold having R = 2.0 cm (length 30 cm × width 57 cm), and the surface of the biaxially stretched polyester film having the uneven pattern is heated to about 80 ° C. At the same time, the polypropylene foam sheet side was heated to about 100 ° C. and vacuum-pressure formed for about 45 seconds.
Then, it was cooled (for 2 minutes) and the pseudo skin-like molded laminate was taken out from the mold.
【0020】この擬皮状成形積層体は、金型成形により
擬皮状凹凸模様が消失したり、色調が変褪色することが
なく、しかも耐久性に優れていた。
実施例2
実施例1において、二軸延伸多孔性ポリエステルフィル
ムとして厚さ50μの東レ株式会社製“ルミラー”E6
0タイプを使用し、基布としてポリエステル/レーヨン
織物(T/R7050)を用い、ポリプロピレン発泡シ
ートとして厚さ3mmの東レ株式会社製“ペフ”PPA
M25030を使用して、同様にして積層シートを作製
した。この積層シートを実施例1と同様に蓋型金型にセ
ットし二軸延伸ポリエステルフィルム面とポリプロピレ
ン発泡シート面を約120℃に加熱し、約45秒間真空
圧空成形した。This pseudo skin-like molded laminate was excellent in durability without the pseudo skin uneven pattern disappearing or the color tone being discolored due to the die molding. Example 2 In Example 1, as a biaxially stretched porous polyester film, “Lumirror” E6 manufactured by Toray Industries, Inc. having a thickness of 50 μm.
"Pef" PPA manufactured by Toray Industries, Inc. using 0 type, polyester / rayon fabric (T / R7050) as a base fabric, and a polypropylene foam sheet having a thickness of 3 mm.
A laminated sheet was prepared in the same manner using M25030. This laminated sheet was set in a lid mold in the same manner as in Example 1, the biaxially stretched polyester film surface and the polypropylene foam sheet surface were heated to about 120 ° C., and vacuum pressure formed for about 45 seconds.
【0021】この擬皮状成形積層体は、金型成形により
擬皮状凹凸模様が消失したり、色調が変褪色することが
なく、しかも耐久性に優れていた。さらにこの蓋型に成
形された擬皮状成形積層体を縫製加工しバッグ仕上げし
たところ、軽くて表面摩耗に強い擬皮状外観を有するソ
フトバッグが得られた。
実施例3
実施例2において、表面に皺付け揉み加工を施し擬皮状
凹凸模様と色調を付与した積層シートに発泡シートを積
層接着することなく、実施例1と同様に蓋型金型にセッ
トし二軸延伸ポリエステルフィルム面を約120℃に加
熱し、約45秒間真空圧空成形した後冷却(2分間)
し、金型から擬皮状成形積層体を取り出した。This pseudo skin-like molded laminate was excellent in durability without the pseudo skin-like uneven pattern disappearing or the color tone being discolored by the die molding. Further, when the pseudo-leather molded laminate formed in the lid mold was sewn and finished as a bag, a soft bag having a pseudo-leather appearance that was light and resistant to surface abrasion was obtained. Example 3 The same as in Example 1, except that the foamed sheet was not laminated and adhered to the laminated sheet which was subjected to wrinkling and rubbing on the surface to give the pseudo skin-like concavo-convex pattern and color tone in Example 2, and was set in the lid mold as in Example 1. Then, the surface of the biaxially stretched polyester film is heated to about 120 ° C., vacuum pressure molding is performed for about 45 seconds, and then cooled (2 minutes).
Then, the pseudo skin-like molded laminate was taken out from the mold.
【0022】得られた擬皮状成形積層体は、表面の擬皮
状凹凸模様が消失したり、色調が変褪色しておらず、金
型と同一の形状を有すると共にフレキシプルで折り畳み
可能であった。
比較例1
JISZ−8741方法3(60度鏡面光沢)に規定さ
れている表面光沢度17、厚さ25μの二軸延伸ポリエ
ステルフィルム(東レ株式会社製“ルミラー”X44タ
イプ)と厚さ3mmのポリプロピレン発泡シート(東レ
株式会社製“ペフ”PPAM25030)とを、ポリウ
レタン系接着剤を介して貼り合わせ積層した。The obtained pseudo skin-like molded laminate did not have the pseudo skin uneven pattern on the surface disappeared or the color tone did not discolor, and it had the same shape as the mold and was foldable with a flexible cable. It was Comparative Example 1 Biaxially stretched polyester film (“Lumirror” X44 type manufactured by Toray Industries, Inc.) having a surface gloss of 17 and a thickness of 25 μ as specified in JIS Z-8741 Method 3 (60-degree specular gloss) and polypropylene having a thickness of 3 mm. A foamed sheet ("Pef" PPAM25030 manufactured by Toray Industries, Inc.) was attached and laminated via a polyurethane adhesive.
【0023】この積層シートを、実施例2と同様に、R
=2.0cmの蓋型金型(タテ30cm×ヨコ57c
m)にセットし二軸延伸ポリエステルフィルム面とポリ
プロピレン発泡シート面とを約120℃に加熱し、約4
5秒間真空圧空成形した後冷却(2分間)し、金型から
成形積層体を取り出した。得られた成形積層体は、ポリ
プロピレン発泡シートは成形されていたが、二軸延伸ポ
リエステルフィルムはR部分が切断してしまい実用性を
有するものが得られなかった。
実施例4
実施例2で得られた表面に皺付け揉み加工を施し擬皮状
凹凸模様と色調を付与した積層体と厚さ3mmの発泡ポ
リプロピレンシート(東レ株式会社製“ペフ”PPAM
25030)とを金型で真空圧空成形する際、熱可塑性
ポリウレタン系接着剤を介して120℃で屈曲成形し
た。This laminated sheet was treated with R in the same manner as in Example 2.
= 2.0 cm lid mold (vertical 30 cm x width 57 c
m) and heat the biaxially stretched polyester film surface and the polypropylene foam sheet surface to about 120 ° C.,
After vacuum pressure molding for 5 seconds, it was cooled (2 minutes), and the molded laminate was taken out from the mold. In the obtained molded laminate, the polypropylene foam sheet was molded, but the biaxially stretched polyester film was cut at the R portion, and a practical product could not be obtained. Example 4 A laminate obtained by subjecting the surface obtained in Example 2 to wrinkling and rubbing to give a pseudo skin-like uneven pattern and a color tone, and a foamed polypropylene sheet having a thickness of 3 mm (“Pef” PPAM manufactured by Toray Industries, Inc.
25030) was vacuum-pressure molded with a mold at a temperature of 120 ° C. via a thermoplastic polyurethane adhesive.
【0024】得られた擬皮状成形積層体は、表面の擬皮
状凹凸模様が消失したり、色調が変褪色していない一体
成形体であった。
実施例5
実施例2で得られた厚さ25μの二軸延伸ポリエステル
フィルムと厚さ60μの二軸延伸多孔性ポリプロピレン
フィルムとをポリウレタン系接着剤で接着積層し、前記
二軸延伸多孔性ポリプロピレンフィルム側に基布のポリ
エステル/レーヨン織物を貼り合わせた積層シートに皺
付け揉み加工を施すことなく、これに厚さ3mmの発泡
ポリプロピレンシート(東レ株式会社製“ペフ”PPA
M25030)を積層し金型で真空圧空成形した。The obtained pseudo skin-like molded laminate was an integrally formed body in which the pseudo skin-like concavo-convex pattern on the surface did not disappear and the color tone did not deteriorate. Example 5 The biaxially stretched polyester film having a thickness of 25 μm obtained in Example 2 and a biaxially stretched porous polypropylene film having a thickness of 60 μm were adhered and laminated with a polyurethane-based adhesive to obtain the biaxially stretched porous polypropylene film. A laminated polypropylene sheet with a polyester / rayon woven fabric as a base cloth attached to the side without wrinkling and rubbing, and a 3 mm thick expanded polypropylene sheet ("Pef" PPA manufactured by Toray Industries, Inc.
M25030) was laminated and vacuum-pressure formed by a die.
【0025】得られた擬皮状成形積層体は凹凸模様が形
成されていないものの、色調は全く変褪色していなかっ
た。The resulting pseudo-derivative molded laminate had no uneven pattern, but the color tone was not discolored at all.
【0026】[0026]
【発明の効果】上述したように、本発明による擬皮状成
形積層体は、強靭で伸びの小さい延伸フィルムがクッシ
ョン層を介して基布に積層されているので、そのクッシ
ョン層が屈曲成形に際して延伸フィルムにかかる張力を
吸収し、破れを発生しないようにすることができる。ま
た、そのクッション層の張力吸収作用によって、延伸フ
ィルムに皺付けされた擬皮状凹凸模様の消失を防止し、
色調の変褪色を防止することができる。As described above, in the pseudo skin-like molded laminate according to the present invention, the tough and small stretched stretched film is laminated on the base fabric via the cushion layer, so that the cushion layer is formed during bending molding. It is possible to absorb the tension applied to the stretched film and prevent breakage. Also, by the tension absorbing action of the cushion layer, it prevents the disappearance of the wrinkled pseudo skin-like uneven pattern on the stretched film,
Discoloration of the color tone can be prevented.
【0027】また、本発明の成形方法によれば、屈曲成
形に際してクッション層により延伸フィルムの張力を吸
収緩和すると共に成形温度を延伸フィルムの融点よりも
50℃以上低い温度にしたため延伸フィルムを劣化させ
たり、破れを発生させたりすることなく屈曲成形するこ
とができる。Further, according to the molding method of the present invention, the tension of the stretched film is absorbed and relaxed by the cushion layer during the bending and the stretched film is deteriorated because the molding temperature is 50 ° C. or more lower than the melting point of the stretched film. Bending can be performed without causing any breakage.
【図1】本発明の擬皮状成形積層体の一例を示す概略断
面図である。FIG. 1 is a schematic cross-sectional view showing an example of a pseudo skin-like molded laminate of the present invention.
【図2】本発明の擬皮状成形積層体の他の例を示す概略
断面図である。FIG. 2 is a schematic cross-sectional view showing another example of the pseudo skin-like molded laminate of the present invention.
【図3】同擬皮状成形積層体に使用される皺付け加工さ
れていない積層シートの一部を示す断面図である。FIG. 3 is a cross-sectional view showing a part of a wrinkle-free laminated sheet used in the pseudo skin-like molded laminate.
【図4】同擬皮状成形積層体に使用される皺付け加工さ
れた積層シートの一部を示す断面図である。FIG. 4 is a cross-sectional view showing a part of a wrinkled laminated sheet used in the pseudo skin-like molded laminate.
1 擬皮状成形積層体 2 積層シー
ト
A 延伸プラスチックフィルム B クッショ
ン層
C 基布 D 樹脂基板DESCRIPTION OF SYMBOLS 1 Pseudo skin forming laminated body 2 Laminated sheet A Stretched plastic film B Cushion layer C Base cloth D Resin substrate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 村上 征次 滋賀県大津市園山1丁目1番1号 東レ株 式会社滋賀事業場内 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Seiji Murakami 1-1 1-1 Sonoyama, Otsu City, Shiga Prefecture Toray Co., Ltd. Ceremony company Shiga business site
Claims (3)
ョン層Bと、基布CとをA/B/Cの順序に積層した積
層シートを屈曲成形してなる擬皮状成形積層体。1. A pseudo-leather molded laminate obtained by bending a laminated sheet in which a stretched plastic film A, a cushion layer B and a base cloth C are laminated in the order of A / B / C.
け、A/B/C/Dの順序に積層して屈曲成形した請求
項1に記載の擬皮状成形積層体。2. The pseudo-derivative molded laminate according to claim 1, wherein a resin substrate D is provided on the base cloth C side of the laminated sheet, and the laminate is laminated in the order of A / B / C / D and bend-molded.
をクッション層Bを介して積層して積層シートとし、該
積層シートを前記延伸プラスチックフィルムAの融点よ
り50℃以上低い温度に加熱して屈曲成形する擬皮状成
形積層体の成形方法。3. A stretched plastic film A and a base cloth C are laminated via a cushion layer B to form a laminated sheet, and the laminated sheet is bent at a temperature lower than the melting point of the stretched plastic film A by 50 ° C. or more. A method for forming a pseudo skin-like molded laminate to be formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP771091A JPH0525779A (en) | 1991-01-25 | 1991-01-25 | Artificial leathery formed laminate and method for forming the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP771091A JPH0525779A (en) | 1991-01-25 | 1991-01-25 | Artificial leathery formed laminate and method for forming the same |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0525779A true JPH0525779A (en) | 1993-02-02 |
Family
ID=11673299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP771091A Pending JPH0525779A (en) | 1991-01-25 | 1991-01-25 | Artificial leathery formed laminate and method for forming the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0525779A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009119720A (en) * | 2007-11-15 | 2009-06-04 | Sumitomo Bakelite Co Ltd | Decorative plate and manufacturing method of decorative plate |
JP2011245689A (en) * | 2010-05-25 | 2011-12-08 | Fujitsu Ltd | Housing, manufacturing method of housing, electronic device, and manufacturing method of electronic device |
-
1991
- 1991-01-25 JP JP771091A patent/JPH0525779A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009119720A (en) * | 2007-11-15 | 2009-06-04 | Sumitomo Bakelite Co Ltd | Decorative plate and manufacturing method of decorative plate |
JP2011245689A (en) * | 2010-05-25 | 2011-12-08 | Fujitsu Ltd | Housing, manufacturing method of housing, electronic device, and manufacturing method of electronic device |
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