JPH11147300A - Polyester resin molding and its manufacture - Google Patents

Polyester resin molding and its manufacture

Info

Publication number
JPH11147300A
JPH11147300A JP33239297A JP33239297A JPH11147300A JP H11147300 A JPH11147300 A JP H11147300A JP 33239297 A JP33239297 A JP 33239297A JP 33239297 A JP33239297 A JP 33239297A JP H11147300 A JPH11147300 A JP H11147300A
Authority
JP
Japan
Prior art keywords
polyester resin
polyester
transparent
nonwoven fabric
printed
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
Application number
JP33239297A
Other languages
Japanese (ja)
Inventor
Kazuhiro Suga
和宏 須賀
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP33239297A priority Critical patent/JPH11147300A/en
Publication of JPH11147300A publication Critical patent/JPH11147300A/en
Pending legal-status Critical Current

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  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To enable excellently-designed printing by integrally laminating a polyester transparent resin layer, a polyester nonwoven fabric sheet applied printing on one side, and a non-transparent polyester resin layer, and laminating the transparent polyester resin layer so as to contact with the printed side. SOLUTION: A transparent polyester resin is cast into a mold. A sheet, where a decorative layer 3 is printed on a polyester resin nonwoven fabric 2 by using a gravure ink using a binder composed of an alkyd resin and a pyroxylin, is laminated so that the printed surface is faced to the polyester resin surface 1. A transparent polyester resin 1 diluted to a low viscosity with an organic solvent is applied for putting the polyester resin between the nonwoven fabric fiber. After drying of the solvent content, it is overlapped to contact with a non-transparent sheet molding compound(SMC) comprising an unsaturated polyester resin and glass fibers for placing in a molding tool to harden the SMC. Thus, the appearance of the molding has a deep pattern due to the diffused printing ink.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、ポリエステル樹脂
成型品およびその製造方法に関するものであり、特にS
MC( Sheet molding compound )、BMC( Bulk
molding compound )等により成形される繊維強化プラ
スチック(FRP=Fiber Reinforced Plastic)成形品
とその製造方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyester resin molded article and a method for producing the same, and more particularly, to a method for manufacturing a polyester resin.
MC (Sheet molding compound), BMC (Bulk
The present invention relates to a fiber-reinforced plastic (FRP) molded article formed by molding compound (molding compound) or the like and a method for producing the same.

【0002】[0002]

【従来の技術】従来、模様付きの繊維強化プラスチック
(FRP)成形品を製造する方法として、チタン紙、不
織布、布、含浸紙等を成形同時一体化する方法(例え
ば、特開昭48−12876号公報、特開昭51−20
951号公報等参照)が知られているが、この方法で
は、柄の深みに欠け、意匠性に乏しい、破れなどが
生じやすい、成形性がなく形状が制限される、物理
的な投錨効果の接着であるため温度や圧力などの成形条
件による接着性のバラツキが大きい、と言った欠点があ
る。
2. Description of the Related Art Conventionally, as a method for producing a patterned fiber reinforced plastic (FRP) molded product, a method of simultaneously forming and integrating titanium paper, nonwoven fabric, cloth, impregnated paper, and the like (for example, Japanese Patent Application Laid-Open No. 48-12876). No., JP-A-51-20
951) is known, but this method lacks the depth of the handle, is poor in design, easily breaks, has no formability, limits the shape, and has a physical anchoring effect. There is a drawback that adhesion is largely varied due to molding conditions such as temperature and pressure because of adhesion.

【0003】また、ポリエステルシートに印刷したシー
トを未硬化の不透明SMCに貼り合わせ一体成型するこ
ともあるが、この方法では、ポリエステルフィルムと
SMCの密着が劣る、フィルムが薄い場合柄の深みに
欠け、意匠性に乏しい、と言った欠点がある。
[0003] In some cases, a sheet printed on a polyester sheet is laminated to an uncured opaque SMC and integrally molded. However, in this method, the adhesion between the polyester film and the SMC is poor. There is a drawback that the design is poor.

【0004】さらにまた、ポリエステルフィルムに不織
布を貼り合わせ密着を向上させるという方法も採られて
いるが、この方法では不織布とSMC間にエア溜まりが
発生し部分的に密着が劣るという問題点があった。
Further, a method of bonding a non-woven fabric to a polyester film to improve the adhesion has been adopted. However, this method has a problem that air accumulation occurs between the non-woven fabric and the SMC, and the adhesion is partially poor. Was.

【0005】[0005]

【発明が解決しようとする課題】本発明は、上記のよう
な問題点に鑑みてなされたものであり、その目的とする
ところは、加熱、加圧時の柔軟性、強度が高く成形性が
良く、成形体と装飾シートとの接着も良好で、柄の深み
があり、意匠性に優れた印刷を施すことができ、不織布
とSMC間にエア溜まりが発生しないポリエステル樹脂
成型品およびその製造方法を提供することにある。
DISCLOSURE OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide high flexibility and strength at the time of heating and pressurization and high formability. Good polyester resin molded article with good adhesion between molded article and decorative sheet, deep pattern, good printability, and no air pocket between non-woven fabric and SMC. Is to provide.

【0006】[0006]

【課題を解決するための手段】上記の目的を達成するた
め、本発明のポリエステル樹脂成型品は、ポリエステル
系透明樹脂層、片面に印刷を施したポリエステル系不織
布シート、不透明なポリエステル樹脂層が積層一体化さ
れてなり、かつ前記印刷面と接して前記ポリエステル系
透明樹脂層が積層されていることを特徴とする。
In order to achieve the above object, a polyester resin molded article of the present invention comprises a polyester transparent resin layer, a polyester nonwoven fabric sheet printed on one side, and an opaque polyester resin layer. The polyester-based transparent resin layer is laminated and is in contact with the printing surface.

【0007】そして、ポリエステル系不織布シートの非
印刷面と不透明なポリエステル樹脂層との間に、透明ま
たは半透明なポリエステル樹脂が積層されていてもよ
い。また、不透明なポリエステル樹脂層がSMC若しく
はBMCであるとFRPのポリエステル樹脂成型品にな
る。
A transparent or translucent polyester resin may be laminated between the non-printed surface of the polyester-based nonwoven fabric sheet and the opaque polyester resin layer. Further, when the opaque polyester resin layer is SMC or BMC, it becomes a polyester resin molded product of FRP.

【0008】上記のポリエステル樹脂成型品は、不完全
に硬化されたポリエステル系透明樹脂を金型内に配置
し、その上に片面に印刷を施したポリエステル系不織布
シートを印刷面が該不完全硬化されたポリエステル系透
明樹脂側に配し、更に非印刷面上に不透明で未硬化のポ
リエステル樹脂を積層し熱、圧により一体成型すること
により製造される。
In the above-mentioned polyester resin molded product, an incompletely cured polyester-based transparent resin is placed in a mold, and a polyester-based nonwoven fabric sheet on which one side is printed is printed. It is manufactured by arranging an opaque and uncured polyester resin on the non-printing surface and integrally molding by heat and pressure.

【0009】または、ポリエステル系透明樹脂層、片面
に印刷を施したポリエステル系不織布シートが順次積層
されてなる装飾シートを用意し、該装飾シート(以下、
単に「シート」とも呼称する。)の不織布シートの非印
刷面側と接するようにSMC若しくはBMC等のFRP
の原材料(乃至は中間体)を重ね合わせ、金型内で加熱
加圧して両者を一体化することにより製造される。
[0009] Alternatively, a decorative sheet is prepared by sequentially laminating a polyester-based transparent resin layer and a polyester-based nonwoven fabric sheet printed on one side.
It is simply referred to as a “sheet”. FRP such as SMC or BMC so as to be in contact with the non-printing surface side of the nonwoven fabric sheet
Are manufactured by stacking the raw materials (or intermediates) and heating and pressing them in a mold to integrate them.

【0010】ここで、前記の不織布シートの非印刷面と
不透明で未硬化のポリエステル樹脂層との間に、透明ま
たは半透明なポリエステル樹脂が積層されていてもよ
い。特に柄の深みがあり、意匠性に優れた印刷を施すた
めには、印刷を施したポリエステル系不織布シートの非
印刷面に接するポリエステル樹脂は、有機溶剤が含まれ
低粘度であり、印刷による装飾層が半硬化していること
が必要である。ここで、有機溶剤としては、ポリエステ
ル樹脂を分散させ、低粘度にするものであればよい。例
えば、酢酸エチル、酢酸ブチル、メチルエチルケトン、
トルエン、シクロヘキサノン等が使用できる。不織布シ
ートに印刷された装飾層の有機溶剤に対する溶解性は装
飾層を構成するバインダーの分子量や架橋成分の調節に
より調整可能である。
Here, a transparent or translucent polyester resin may be laminated between the non-printed surface of the nonwoven fabric sheet and the opaque uncured polyester resin layer. In particular, in order to print with a deep pattern and excellent design, the polyester resin in contact with the non-printed surface of the printed polyester nonwoven sheet contains an organic solvent, has a low viscosity, and is decorated by printing. It is necessary that the layer is semi-cured. Here, any organic solvent may be used as long as it disperses a polyester resin to reduce the viscosity. For example, ethyl acetate, butyl acetate, methyl ethyl ketone,
Toluene, cyclohexanone and the like can be used. The solubility of the decorative layer printed on the nonwoven fabric sheet in an organic solvent can be adjusted by adjusting the molecular weight and the crosslinking component of the binder constituting the decorative layer.

【0011】そして、不透明なポリエステル樹脂がSM
C若しくはBMCであるとFRPのポリエステル樹脂成
型品の製造方法となる。
The opaque polyester resin is SM
If it is C or BMC, it will be a method for producing a polyester resin molded product of FRP.

【0012】上記のように本発明では、ポリエステル系
透明樹脂層を用いることで、成形時の熱やSMCの流動
性による応力に対してもシート自体が変形、流動、破れ
等を生じることがなく、また裏打ちされた不織布シート
により、シートに適度な成形性を付与し、尚且つFRP
と適度に相溶し、強固な接着を発現することができる。
As described above, in the present invention, the use of the polyester-based transparent resin layer allows the sheet itself to be free from deformation, flow, tear, etc., even when subjected to heat due to molding and stress caused by SMC fluidity. In addition, the backing nonwoven sheet gives the sheet an appropriate formability, and the FRP
And a moderately compatible with each other, and can exhibit strong adhesion.

【0013】[0013]

【発明の実施の形態】ポリエステル系透明樹脂層として
は、不完全に硬化されたポリエステル系透明樹脂を金型
内に配置することにより形成する。このポリエステル系
透明樹脂層は、透明性、引張強度、耐熱性、寸法安定
性、印刷適性、耐汚染性及び耐溶剤性等に優れる。装飾
層の鮮明さ、深みを与えるためには、ポリエステル透明
樹脂層からなる表面層は高透明性であることが好まし
い。厚みとして10μm〜0.7mmのものが使用でき
るが、望ましくは0.05mm〜0.5mm程度であ
る。薄すぎると強度や深み感が低下し、厚すぎると成形
性及びコストの点で良くない。ポリエステル系透明樹脂
層としては、ポリエチレンテレフタレート、ポリブチレ
ンテレフタレート、エチレンテレフタレートイソフタレ
ート共重合体、ポリエチレンナフタレート、ポリアリレ
ート等が代表的なものであるが、透明ならば、後記のS
MCであってもよい。
BEST MODE FOR CARRYING OUT THE INVENTION A polyester-based transparent resin layer is formed by disposing an incompletely cured polyester-based transparent resin in a mold. This polyester-based transparent resin layer is excellent in transparency, tensile strength, heat resistance, dimensional stability, printability, stain resistance, solvent resistance, and the like. In order to provide sharpness and depth of the decorative layer, it is preferable that the surface layer composed of the polyester transparent resin layer has high transparency. Although a thickness of 10 μm to 0.7 mm can be used, it is preferably about 0.05 mm to 0.5 mm. If it is too thin, the strength and the sense of depth are reduced, and if it is too thick, moldability and cost are not good. Typical examples of the polyester-based transparent resin layer include polyethylene terephthalate, polybutylene terephthalate, ethylene terephthalate isophthalate copolymer, polyethylene naphthalate, and polyarylate.
It may be MC.

【0014】一方、不織布シートの非印刷面と不透明な
ポリエステル樹脂層との間に形成される透明または半透
明で未硬化のポリエステル樹脂としては、ポリエチレン
テレフタレート、ポリブチレンテレフタレート、エチレ
ンテレフタレートイソフタレート共重合体、ポリエチレ
ンナフタレート、ポリアリレート等が代表的なものであ
る。これらは、成型品を見る時に印刷面の下に積層する
ものなので透明性がやや劣るものでも良く、顔料、染
料、フィラーを加えて半透明としてもよいのである。従
って、後記するSMCでもよい。厚みとして10〜20
0μmのものが使用できるが、望ましくは20〜100
μm程度である。薄すぎると強度や深み感が低下し、厚
すぎると成形性及びコストの点で良くない。
On the other hand, the transparent or translucent uncured polyester resin formed between the non-printed surface of the nonwoven fabric sheet and the opaque polyester resin layer includes polyethylene terephthalate, polybutylene terephthalate and ethylene terephthalate isophthalate copolymer. Coalescence, polyethylene naphthalate, polyarylate and the like are typical. Since these are laminated below the printed surface when the molded product is viewed, the transparency may be slightly inferior, and the material may be made translucent by adding a pigment, dye, or filler. Therefore, an SMC described later may be used. 10-20 as thickness
0 μm can be used, but preferably 20 to 100 μm.
It is about μm. If it is too thin, the strength and the sense of depth are reduced, and if it is too thick, moldability and cost are not good.

【0015】以上のポリエステル系透明樹脂層、透明ま
たは半透明なポリエステル樹脂には、必要に応じて層自
体或いは下のFRP等の耐候性を向上せしめるため、層
中にベンゾトリアゾール、ベンゾフェノン、微粒子酸化
セリウム等の紫外線吸収剤、ヒンダードアミン系ラジカ
ル捕捉剤等の光安定剤を添加してもよい。紫外線吸収剤
及び光安定剤とも添加量は0.1〜5重量%程度であ
る。また、ポリエステル系透明樹脂層中にも、透明性を
失わない範囲内で必要に応じて染料、顔料等の着色剤を
添加してもよい。
In the above-mentioned polyester-based transparent resin layer, transparent or translucent polyester resin, if necessary, benzotriazole, benzophenone, fine particles oxidized in the layer may be used to improve the weather resistance of the layer itself or the underlying FRP or the like. An ultraviolet absorber such as cerium and a light stabilizer such as a hindered amine radical scavenger may be added. The addition amount of both the ultraviolet absorber and the light stabilizer is about 0.1 to 5% by weight. Further, a coloring agent such as a dye or a pigment may be added to the polyester-based transparent resin layer, if necessary, as long as the transparency is not lost.

【0016】不織布シートとしては、ポリエステル系で
一般に製造されるものを使用する。FRP(主に不飽和
ポリエステル樹脂)中のポリエステル樹脂と成形時の熱
圧により熔融密着し、相溶的に接着できる。秤量10〜
200g/m2 のものが使用できるが、望ましくは20
〜100g/m2 程度である。薄すぎると成形時に熔融
しすぎて、印刷層を保護できない。厚すぎると成形品の
反りが大きくなったりコストアップになる。ポリエステ
ル系透明樹脂層と不織布シートとの適度な熱変形によっ
てシート全体の成形性を向上せしめる。
As the non-woven fabric sheet, a polyester-based non-woven fabric sheet is used. Melts and adheres to the polyester resin in the FRP (mainly unsaturated polyester resin) by hot pressure during molding, and can be compatible with each other. Weighing 10
200 g / m 2 can be used, but preferably 20 g / m 2
100100 g / m 2 . If it is too thin, it melts too much during molding and cannot protect the printed layer. If the thickness is too large, the warpage of the molded product increases and the cost increases. The moldability of the entire sheet is improved by moderate thermal deformation of the polyester-based transparent resin layer and the nonwoven fabric sheet.

【0017】不透明なポリエステル樹脂は製品裏が見え
なくするためで不透明フィラーにより透明性を落とした
もので良い。製品の透明性が必要な場合、フィラー等に
より透明性を低下させる必要はない。
The opaque polyester resin is used to make the back of the product invisible, and may be a resin whose transparency is reduced by an opaque filler. If the product requires transparency, it is not necessary to reduce the transparency with a filler or the like.

【0018】FRPの成分である熱硬化性樹脂として
は、不飽和ポリエステル樹脂が接着性の点からも好まし
い。これらの不飽和ポリエステル樹脂から成形品を作る
には、先ずこれらの樹脂の単量体或いはプレポリマー
(オリゴマーも包含する)に架橋剤、重合開始剤、或い
は反応促進触媒を加えたものに、短繊維、織布、不織布
等の繊維質補強材とその他必要に応じ各種添加物を加え
た未硬化組成物を用意する。この未硬化組成物,すなわ
ちFRPの原材料乃至は中間体の形態として例えばSM
C又はBMCの形態がある。
As the thermosetting resin which is a component of FRP, unsaturated polyester resin is preferable from the viewpoint of adhesiveness. To make a molded article from these unsaturated polyester resins, first, a monomer or prepolymer (including oligomers) of these resins to which a crosslinking agent, a polymerization initiator, or a catalyst for accelerating the reaction has been added is used. An uncured composition to which a fibrous reinforcing material such as a fiber, a woven fabric, or a non-woven fabric and other various additives are added as needed is prepared. As an uncured composition, that is, a raw material or an intermediate of FRP, for example, SM
There is a form of C or BMC.

【0019】未硬化組成物の代表的形態であるSMCに
ついて詳述すると、SMCの材料は、ガラス繊維、炭素
繊維、石綿、チタン酸カリウム等の繊維質補強剤、触
媒、充填剤、離型剤等を混練した熱硬化性樹脂からな
る。用いられる熱硬化性樹脂は通常不飽和ポリエステル
樹脂のプレポリマーが代表的である。繊維質補強剤とし
ては、通常ガラス繊維の短繊維が用いられる。このガラ
ス繊維の含有量は通常10〜70重量%である。充填剤
としては、炭酸カルシウム、硫酸バリウム、水酸化アル
ミニウム等の粉末を用いる。離型剤としてはステアリン
酸亜鉛等を用いる。その他、必要に応じてスチレン単量
体、多官能アクリレート(又はメタクリレート)単量体
等の反応希釈剤、イソシアネート、アミン等の架橋剤、
過酸化ベンゾイル、メチルエチルケトンパーオキサイ
ド、tブチルパーペンゾエイト、有機スルホン酸塩等の
重合開始剤(硬化触媒)、ナフテン酸コバルト、ナフテ
ン酸マンガン等の硬化促進触媒、二酸化チタン、カーボ
ンブラック、弁柄等の着色剤等を添加する。
The SMC, which is a typical form of the uncured composition, will be described in detail. The material of the SMC is a fibrous reinforcing agent such as glass fiber, carbon fiber, asbestos, and potassium titanate, a catalyst, a filler, and a release agent. And the like. The thermosetting resin used is typically a prepolymer of an unsaturated polyester resin. As the fibrous reinforcing agent, glass fiber short fibers are usually used. The content of this glass fiber is usually 10 to 70% by weight. Powders such as calcium carbonate, barium sulfate, and aluminum hydroxide are used as the filler. As a release agent, zinc stearate or the like is used. In addition, if necessary, a reaction diluent such as a styrene monomer, a polyfunctional acrylate (or methacrylate) monomer, a crosslinking agent such as an isocyanate or an amine,
Polymerization initiators (curing catalysts) such as benzoyl peroxide, methyl ethyl ketone peroxide, t-butyl perpenzoate, and organic sulfonates; curing accelerating catalysts such as cobalt naphthenate and manganese naphthenate; titanium dioxide, carbon black, red iron oxide, etc. Is added.

【0020】不織布シートに施す装飾処理は、該シート
自体に染料、顔料等の着色剤を混練して施すことも可能
であるが、一般的にはグラビア印刷、シルクスクリーン
印刷ロールコート、オフセット印刷等により行い、印刷
絵柄は、木目柄、石目柄、布目柄、文字、幾何学模様、
全面ベタ等である。FRP成形品を隠蔽する必要のある
場合は、絵柄のFRP(SMC)側に全面ベタ層を一層
設け、その全面ベタ層中に二酸化チタン、カーボンブラ
ック等の隠蔽性の高い顔料を添加する。印刷インキは各
種顔料(又は染料)とバインダー樹脂とからなる。バイ
ンダーは、アルキッド樹脂、2液硬化型ウレタン樹脂、
アクリル樹脂、ポリエステル樹脂、塩化ビニル−酢酸ビ
ニル共重合体、セルロース系樹脂、ポリビニルブチラー
ル樹脂等の中から適宜選択して用いる。また装飾処理と
して、蒸着、スパッタリング等でアルミニウム、クロム
等の金属薄膜を形成してもよい。この場合、金属薄膜は
全面でもパターン状でもよい。なお必要に応じて、印刷
を施す側の不織布シート表面に予めコロナ放電処理、プ
ラズマ処理、易接着プライマーコート処理等の易接着処
理を施しておいてもよい。
In the decoration treatment applied to the nonwoven fabric sheet, it is possible to knead and apply a coloring agent such as a dye or a pigment to the sheet itself, but in general, gravure printing, silk screen printing roll coating, offset printing, etc. The print pattern is wood pattern, stone pattern, cloth pattern, letters, geometric pattern,
The entire surface is solid. When it is necessary to cover the FRP molded product, a solid layer is entirely provided on the FRP (SMC) side of the picture, and a highly concealable pigment such as titanium dioxide or carbon black is added to the solid layer. The printing ink comprises various pigments (or dyes) and a binder resin. The binder is an alkyd resin, a two-part curable urethane resin,
An acrylic resin, a polyester resin, a vinyl chloride-vinyl acetate copolymer, a cellulose resin, a polyvinyl butyral resin, or the like is appropriately selected and used. As a decoration process, a metal thin film of aluminum, chromium, or the like may be formed by vapor deposition, sputtering, or the like. In this case, the metal thin film may be in the entire surface or in a pattern. If necessary, the surface of the nonwoven fabric on which printing is to be performed may be previously subjected to an easy-adhesion treatment such as a corona discharge treatment, a plasma treatment, or an easy-adhesion primer coating treatment.

【0021】必要に応じて、ポリエステル系透明樹脂層
の表面上にさらに合成樹脂からなる保護層を形成しても
よい。この保護層は、装飾層を透視可能なように透明
(無色或いは着色)なものを選ぶ。樹脂としては、成形
性を重視する場合は熱可塑性樹脂を用い、また表面の耐
擦傷性、耐薬品性等の物性を重視する場合は熱硬化性樹
脂、電離放射線硬化性樹脂等の硬化性樹脂を用いる。厚
さは要求性能に応じて適宜決めればよいが、通常1〜1
00μm程度である。熱可塑性樹脂としては前記の樹脂
が用いられる。ただし、保護層に用いる場合は反応性成
分は添加しなくてもよい。熱硬化性樹脂としては、2液
硬化型ポリウレタン樹脂、エポキシ樹脂、不飽和ポリエ
ステル樹脂等が、電離放射線硬化性樹脂としては多官能
不飽和(メタ)アクリレートの単量体、又はプレポリマ
ー等が代表的である。なお、電離放射線としては通常紫
外線或いは電子線が用いられる。耐候性を向上させる場
合には、保護層中に前記のごとき紫外線吸収剤及び/又
は光安定剤を添加する。
If necessary, a protective layer made of a synthetic resin may be further formed on the surface of the polyester-based transparent resin layer. The protective layer is selected to be transparent (colorless or colored) so that the decorative layer can be seen through. As a resin, a thermoplastic resin is used when emphasis is placed on moldability, and a curable resin such as a thermosetting resin or an ionizing radiation curable resin is used when emphasizing physical properties such as surface scratch resistance and chemical resistance. Is used. The thickness may be appropriately determined according to the required performance, but is usually 1 to 1
It is about 00 μm. The above-mentioned resin is used as the thermoplastic resin. However, when used for the protective layer, the reactive component may not be added. Typical examples of the thermosetting resin include two-component curable polyurethane resins, epoxy resins, and unsaturated polyester resins, and examples of the ionizing radiation-curable resin include polyfunctional unsaturated (meth) acrylate monomers and prepolymers. It is a target. In addition, as the ionizing radiation, an ultraviolet ray or an electron beam is usually used. In order to improve the weather resistance, an ultraviolet absorber and / or a light stabilizer as described above is added to the protective layer.

【0022】本発明のポリエステル樹脂成型品、特に繊
維強化ポリエステル樹脂成型品の用途としては、建築物
の壁、床、天井等の内装材、浴槽、洗面台、厨房器具等
の住設器械、窓枠、扉等の建具、車輛、船舶等の乗物の
内装材、容器、家電製品のキャビネット等を挙げること
ができる。
The polyester resin molded product of the present invention, in particular, the fiber reinforced polyester resin molded product is used for interior materials such as walls, floors and ceilings of buildings, bathtubs, washstands, household equipment such as kitchen appliances and windows. Fittings such as frames and doors, interior materials of vehicles such as vehicles and ships, containers, cabinets of home electric appliances and the like can be mentioned.

【0023】[0023]

【実施例】図1は本発明のポリエステル樹脂成型品の一
実施例を示すものである。 実施例1 ・金型内に透明ポリエステル樹脂を0.2mm厚となる
よう流しこんだ。 ・アルキッド樹脂と硝化綿とのバインダーによるグラビ
アインキにより装飾層3を、秤量60g/m2 のポリエ
ステル樹脂系不織布2(東洋紡製)に印刷したシートを
印刷面がポリエステル樹脂面に向くように配し積層す
る。 ・有機溶剤(酢酸エチル、酢酸ブチル、メチルエチルケ
トン、トルエン、シクロヘキサノン)により低粘度に希
釈した透明ポリエステル樹脂を塗布し、不織布繊維問に
ポリエステル樹脂を入れる。 ・溶剤分を乾燥後不透明で、不飽和ポリエステル樹脂と
硝子繊維とからなるSMC(武田薬品製)と接するよう
にして重ね合わせ、これらを成形型内に設置してから、
成形温度150℃、成形圧力70kgf/cm2 で5分
間加熱加圧してSMCを硬化させた。このようにして、
一体成型して、図1のようなポリエステル樹脂成型品1
0を製造した。成型品の外観は、拡散した印刷インキ3
0によって、柄の深みがあり、またポリエステル樹脂の
密着も十分であった。
FIG. 1 shows an embodiment of a polyester resin molded product of the present invention. Example 1 A transparent polyester resin was poured into a mold so as to have a thickness of 0.2 mm. A sheet in which the decorative layer 3 is printed on a polyester resin nonwoven fabric 2 (manufactured by Toyobo) weighing 60 g / m 2 with a gravure ink using a binder of an alkyd resin and a nitrified cotton is arranged such that the printed surface faces the polyester resin surface. Laminate. -Apply a transparent polyester resin diluted to a low viscosity with an organic solvent (ethyl acetate, butyl acetate, methyl ethyl ketone, toluene, cyclohexanone), and put the polyester resin between the nonwoven fibers. -After the solvent is dried, it is opaque and superposed so as to be in contact with SMC (manufactured by Takeda Pharmaceutical Co., Ltd.) composed of unsaturated polyester resin and glass fiber.
The SMC was cured by heating and pressing at a molding temperature of 150 ° C. and a molding pressure of 70 kgf / cm 2 for 5 minutes. In this way,
Polyester resin molded product 1 as shown in Fig. 1
0 was produced. The appearance of the molded product is the diffused printing ink 3.
With 0, the pattern had a deeper depth and the polyester resin had sufficient adhesion.

【0024】比較例1 ・上記実施例1の不織布の替わりに50μmのポリエス
テルフィルムを用いて印刷面が透明ポリエステル樹脂側
に配するように積層した以外は実施例1と同じ。成型品
の外観は実施例1に比べ深みは少なく、柄の立体感に劣
っていた。また、ポリエステル樹脂とポリエステルフィ
ルム間の密着は不完全であった。
Comparative Example 1 The same as Example 1 except that a 50 μm polyester film was used instead of the nonwoven fabric of Example 1 and the printed surface was laminated so as to be disposed on the transparent polyester resin side. The appearance of the molded product was less deep than that of Example 1 and was poor in the three-dimensional appearance of the pattern. Further, the adhesion between the polyester resin and the polyester film was incomplete.

【0025】[0025]

【発明の効果】以上説明したように、本発明によれば、
外観上の破れ、シワ等の不具合もなく、意匠的にも優れ
た印刷による表現ができ、ポリエステルによるFRP等
と強固に接着した製品を得ることができる。特に、有機
溶剤で低粘度に調整したポリエステル樹脂を積層するこ
とにより、不織布繊維間に浸透させて、エア噛みを防止
するとともに、不織布に印刷した装飾層(印刷層)が一
部溶解して、図1のように不織布層全体に装飾(印刷)
インキが広がり、柄の深みが増す。また、ポリエステル
系不織布は、エア抜けにも優れているので、エア噛みも
防止する。つまり、印刷層(装飾層)が不織布層問に広
がり柄の外観深みが増し、意匠性が向上する。塗装工程
を多くすることなく柄の深みを向上させることができ
た。
As described above, according to the present invention,
It is free from defects such as tears and wrinkles in appearance, and can be expressed by printing excellent in design, and a product firmly bonded to FRP or the like made of polyester can be obtained. In particular, by laminating a polyester resin that has been adjusted to a low viscosity with an organic solvent, it penetrates between the nonwoven fabric fibers, preventing air biting, and partially dissolving the decorative layer (printing layer) printed on the nonwoven fabric, Decoration (printing) on the entire nonwoven fabric layer as shown in Fig. 1
The ink spreads and the depth of the pattern increases. In addition, since the polyester-based nonwoven fabric is excellent in air bleeding, it also prevents air biting. That is, the printed layer (decorative layer) spreads between the nonwoven fabric layers, the appearance depth of the pattern is increased, and the design is improved. The depth of the pattern could be improved without increasing the number of painting steps.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明のポリエステル樹脂成型品の一実施例を
示すものである。
FIG. 1 shows an embodiment of a polyester resin molded product of the present invention.

【符号の説明】[Explanation of symbols]

1 透明ポリエステル 2 不織布 3 装飾層 4 透明、半透明ポリエステル 5 不透明SMC 10 ポリエステル樹脂成型品 30 拡散した印刷インキ DESCRIPTION OF SYMBOLS 1 Transparent polyester 2 Nonwoven fabric 3 Decorative layer 4 Transparent and translucent polyester 5 Opaque SMC 10 Polyester resin molded product 30 Diffused printing ink

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI // B29K 67:00 105:08 B29L 9:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI // B29K 67:00 105: 08 B29L 9:00

Claims (7)

【特許請求の範囲】[Claims] 【請求項1】 ポリエステル系透明樹脂層、片面に印刷
を施したポリエステル系不織布シート、不透明なポリエ
ステル樹脂層が積層一体化されてなり、かつ前記印刷面
と接して前記ポリエステル系透明樹脂層が積層されてい
ることを特徴とするポリエステル樹脂成型品。
1. A polyester-based transparent resin layer, a polyester-based nonwoven fabric sheet printed on one side, and an opaque polyester-resin layer are laminated and integrated, and the polyester-based transparent resin layer is laminated in contact with the printing surface. Polyester resin molded product characterized by being made.
【請求項2】 ポリエステル系不織布シートの非印刷面
と不透明なポリエステル樹脂層との間に、透明または半
透明なポリエステル樹脂が積層されていることを特徴と
する請求項1記載のポリエステル樹脂成型品。
2. The polyester resin molded product according to claim 1, wherein a transparent or translucent polyester resin is laminated between the non-printed surface of the polyester-based nonwoven fabric sheet and the opaque polyester resin layer. .
【請求項3】 不透明なポリエステル樹脂層がSMC若
しくはBMCであることを特徴とする請求項1または請
求項2に記載のポリエステル樹脂成型品。
3. The molded polyester resin product according to claim 1, wherein the opaque polyester resin layer is SMC or BMC.
【請求項4】 不完全に硬化されたポリエステル系透明
樹脂を金型内に配置し、その上に片面に印刷を施したポ
リエステル系不織布シートを印刷面が該不完全硬化され
たポリエステル系透明樹脂側に配し、更に非印刷面上に
不透明で未硬化のポリエステル樹脂を積層し熱、圧によ
り一体成型することを特徴とするポリエステル樹脂成型
品の製造方法。
4. An incompletely cured polyester-based transparent resin in which a partially-cured polyester-based transparent resin is placed in a mold, and a polyester-based nonwoven fabric sheet printed on one side is printed thereon. A method of manufacturing a polyester resin molded product, comprising: laying an opaque uncured polyester resin on a non-printing surface, and integrally molding the same by heat and pressure.
【請求項5】 前記のポリエステル系不織布シートの非
印刷面と不透明で未硬化のポリエステル樹脂層との間
に、透明または半透明なポリエステル樹脂が積層されて
いることを特徴とする請求項4記載のポリエステル樹脂
成型品の製造方法。
5. A transparent or translucent polyester resin is laminated between a non-printed surface of the polyester-based nonwoven fabric sheet and an opaque uncured polyester resin layer. Production method of molded polyester resin.
【請求項6】 印刷を施したポリエステル系不織布シー
トの非印刷面に接するポリエステル樹脂は、有機溶剤が
含まれ低粘度であり、印刷による装飾層が半硬化してい
ることを特徴とする請求項4または請求項5に記載のポ
リエステル樹脂成型品の製造方法。
6. The polyester resin in contact with the non-printed surface of the printed polyester-based nonwoven fabric sheet has a low viscosity containing an organic solvent, and the decorative layer formed by printing is semi-cured. A method for producing a polyester resin molded product according to claim 4 or 5.
【請求項7】 不透明なポリエステル樹脂がSMC若し
くはBMCであることを特徴とする請求項4、請求項5
または請求項6に記載のポリエステル樹脂成型品の製造
方法。
7. The opaque polyester resin is SMC or BMC.
Or the manufacturing method of the polyester resin molded article of Claim 6.
JP33239297A 1997-11-17 1997-11-17 Polyester resin molding and its manufacture Pending JPH11147300A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33239297A JPH11147300A (en) 1997-11-17 1997-11-17 Polyester resin molding and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33239297A JPH11147300A (en) 1997-11-17 1997-11-17 Polyester resin molding and its manufacture

Publications (1)

Publication Number Publication Date
JPH11147300A true JPH11147300A (en) 1999-06-02

Family

ID=18254467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33239297A Pending JPH11147300A (en) 1997-11-17 1997-11-17 Polyester resin molding and its manufacture

Country Status (1)

Country Link
JP (1) JPH11147300A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006044264A (en) * 2004-07-08 2006-02-16 Toray Ind Inc Decorative molded article and its production method
JP2007196532A (en) * 2006-01-26 2007-08-09 Matsushita Denko Bath & Life Kk Molding method of patterning molded product
JP2018008461A (en) * 2016-07-15 2018-01-18 東雄技研株式会社 Method for producing frp molded article

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006044264A (en) * 2004-07-08 2006-02-16 Toray Ind Inc Decorative molded article and its production method
JP2007196532A (en) * 2006-01-26 2007-08-09 Matsushita Denko Bath & Life Kk Molding method of patterning molded product
JP4736824B2 (en) * 2006-01-26 2011-07-27 パナソニック電工株式会社 Molded molded product molding method
JP2018008461A (en) * 2016-07-15 2018-01-18 東雄技研株式会社 Method for producing frp molded article

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