JPH0794563B2 - Manufacturing method of decorative molded products - Google Patents
Manufacturing method of decorative molded productsInfo
- Publication number
- JPH0794563B2 JPH0794563B2 JP4041761A JP4176192A JPH0794563B2 JP H0794563 B2 JPH0794563 B2 JP H0794563B2 JP 4041761 A JP4041761 A JP 4041761A JP 4176192 A JP4176192 A JP 4176192A JP H0794563 B2 JPH0794563 B2 JP H0794563B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- resin particles
- cured
- curable resin
- particles
- 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.)
- Expired - Fee Related
Links
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Moulding By Coating Moulds (AREA)
Description
【0001】[0001]
【産業上の利用分野】この発明は、擬石、テラゾー類、
花崗岩や大理石などの天然石に似た外観を有する繊維強
化樹脂成形品などの成形品の表面層などに用いられる加
飾成形品の製法に関し、異なる色調に着色した未硬化液
状硬化性樹脂を多層に成形、硬化させた後、この多層構
造を有する硬化物を破砕して樹脂粒子を作り、ついで、
この樹脂粒子を透明硬化性樹脂液に配合したものを硬化
成形して加飾成形品とすることによって、複雑で深み感
のある模様を有し、天然石質感が高い加飾成形品が容易
に得られるようにしたものである。BACKGROUND OF THE INVENTION This invention is applicable to artificial stones, terrazzoes,
Regarding the manufacturing method of decorative molded products used for the surface layer of molded products such as fiber reinforced resin molded products that have the appearance similar to natural stone such as granite and marble, multilayer uncured liquid curable resin colored in different colors After molding and curing, the cured product having this multilayer structure is crushed to make resin particles, and then
By mixing and molding these resin particles in a transparent curable resin liquid to form a decorative molded product, it is easy to obtain a decorative molded product with a complex and deep texture and a high natural stone texture. It was made possible.
【0002】[0002]
【従来の技術】従来、このような加飾成形品の製法の具
体例として、いわゆる人工大理石の製造方法が知られて
いる。このものは、ポリメチルメタクリレートなどのア
クリル樹脂をメタクリル酸メチルなどのアクリル酸エス
テルモノマーに溶解した重合性樹脂液に、水酸化アルミ
ニウムなどの無機充填材と、樹脂粒子とを配合し、この
配合物を硬化成形して、模様付けを行なう方法である。
上記樹脂粒子は、個々の粒子全体が均質に着色されてい
るものであり、未硬化液状不飽和ポリエステル樹脂に水
酸化アルミニウムなどの無機充填材と、着色剤とを加え
たのち硬化させ、この硬化物を破砕して得られるもの
で、色調、透明度、形状等の異なる数種以上のものが適
宜組み合わされて上記重合性樹脂液に配合される。2. Description of the Related Art Conventionally, a so-called artificial marble manufacturing method has been known as a specific example of the method for manufacturing such a decorative molded article. This is a mixture of an acrylic resin such as polymethylmethacrylate dissolved in an acrylic ester monomer such as methylmethacrylate, an inorganic filler such as aluminum hydroxide, and resin particles, and the resulting mixture Is a method of hardening and molding and patterning.
The resin particles are those in which all the individual particles are homogeneously colored, and an inorganic filler such as aluminum hydroxide and a coloring agent are added to the uncured liquid unsaturated polyester resin and then cured, and the cured It is obtained by crushing an object, and several or more kinds having different color tones, transparency, shape and the like are appropriately combined and blended in the above polymerizable resin liquid.
【0003】しかしながら、このような加飾成形品の製
造方法においては、数種の樹脂粒子はそれぞれ別工程で
作らねばならないことや、重合性樹脂液に分散させる際
に数種の樹脂粒子を組み合わせることに手間がかかり生
産性が低下するものであった。また、樹脂粒子を重合性
樹脂液に分散させても模様が不自然に偏ってしまった
り、うまく上記重合性樹脂液に分散させることができた
としても単一な模様付けしか、施せず、得られる加飾成
形品は天然石質感が不足するものであった。However, in such a method for producing a decorated molded article, several kinds of resin particles must be produced in separate steps, and several kinds of resin particles are combined when dispersed in a polymerizable resin liquid. Especially, it takes time and productivity is reduced. Further, even if the resin particles are dispersed in the polymerizable resin liquid, the pattern is unnaturally biased, or even if it is successfully dispersed in the polymerizable resin liquid, only a single patterning is applied, and The decorative molded products used had a lack of natural stone texture.
【0004】[0004]
【発明が解決しようとする課題】よって、この発明にお
ける課題は、複雑で深み感のある模様付けが可能であ
り、天然石質感が高い加飾成形品が容易に得られるよう
にすることにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to make it possible to easily obtain a decorative molded product which enables complex and deep patterning and has a high natural stone texture.
【0005】[0005]
【課題を解決するための手段】かかる課題は、異なる色
調に着色した未硬化液状硬化性樹脂を多層に成形、硬化
させた後、この多層構造を有する硬化物を破砕して樹脂
粒子を作り、ついで、この樹脂粒子を透明硬化性樹脂液
に配合したものを硬化成形して加飾成形品とすることで
解決される。[Means for Solving the Problems] The problem is to form resin particles by crushing a cured product having this multilayer structure after molding and curing an uncured liquid curable resin colored in different tones in multiple layers, Then, this resin particle is mixed with a transparent curable resin liquid, and the molded product is cured and molded to give a decorated molded product.
【0006】以下、本発明を詳しく説明する。まず、樹
脂粒子について説明する。この樹脂粒子は、異なる色調
に着色した未硬化液状硬化性樹脂を多層に層状に成形、
硬化させた後、この多層構造を有する硬化物を破砕して
得られるものである。The present invention will be described in detail below. First, the resin particles will be described. The resin particles are formed by forming an uncured liquid curable resin colored in different colors into multiple layers.
After being cured, it is obtained by crushing a cured product having this multilayer structure.
【0007】未硬化液状硬化性樹脂としては、不飽和ポ
リエステル樹脂、エポキシ樹脂、フェノール樹脂、メラ
ミン樹脂、尿素樹脂や、これらの樹脂とアクリルシロッ
プの混合物や、これらの混合物等が用いられる。As the uncured liquid curable resin, unsaturated polyester resin, epoxy resin, phenol resin, melamine resin, urea resin, a mixture of these resins and acrylic syrup, a mixture thereof, or the like is used.
【0008】上記未硬化液状硬化性樹脂を着色するもの
としては、着色剤が用いられる。この着色剤としては、
TiO2、Fe2O3、イエロートナー、ブラウントナ
ー、ブルートナー、グリーントナー等が用いられるが、
これが配合される上記未硬化液状硬化性樹脂に応じて最
も適するものが選ばれる。配合量は、多層構造を有する
硬化物の各層を構成する未硬化液状硬化性樹脂の着色度
によって決められ、上記未硬化液状硬化性樹脂100重
量部に対して0.1〜5重量部程度である。A colorant is used to color the uncured liquid curable resin. As this colorant,
TiO 2 , Fe 2 O 3 , yellow toner, brown toner, blue toner, green toner, etc. are used.
The most suitable one is selected according to the uncured liquid curable resin with which it is blended. The blending amount is determined by the degree of coloring of the uncured liquid curable resin that constitutes each layer of the cured product having a multilayer structure, and is about 0.1 to 5 parts by weight with respect to 100 parts by weight of the uncured liquid curable resin. is there.
【0009】また、上記未硬化液状硬化性樹脂には、樹
脂粒子の透明度を調整するため充填材を添加してもよ
い。充填材としては、平均粒子径約5μm〜数100μ
m程度の水酸化アルミニウム、水酸化マグネシウム、炭
酸カルシウム、ガラスフィラー等が用いられる。配合量
は上記未硬化液状硬化性樹脂100重量部に対して10
0〜200重量部程度である。200重量部程度配合す
ると樹脂粒子が白化して不透明となり、少なく100重
量部程度配合すると透明となり、また、100重量部未
満であると樹脂粒子の比重が小さくなりすぎて、樹脂粒
子が配合される透明硬化性樹脂液中に適度に分散せず、
200重量部を超えると、上記効果が配合に伴いそれ以
上増加しなくなるとともに分散不良または充填材のぬれ
不足等の不都合を生じる。A filler may be added to the uncured liquid curable resin in order to adjust the transparency of the resin particles. As the filler, an average particle diameter of about 5 μm to several hundreds μ
About m of aluminum hydroxide, magnesium hydroxide, calcium carbonate, glass filler, etc. are used. The compounding amount is 10 with respect to 100 parts by weight of the uncured liquid curable resin.
It is about 0 to 200 parts by weight. If about 200 parts by weight is blended, the resin particles become white and opaque, and if less than about 100 parts by weight becomes transparent, and if less than 100 parts by weight, the specific gravity of the resin particles becomes too small and the resin particles are blended. Does not disperse properly in the transparent curable resin liquid,
If the amount exceeds 200 parts by weight, the above effects will not be further increased with compounding, and problems such as poor dispersion and insufficient wetting of the filler will occur.
【0010】上記未硬化液状硬化性樹脂を硬化させるも
のとしては、硬化促進剤、ラジカル硬化剤等が用いられ
る。硬化促進剤としては、ナフテン酸コバルトなどが用
いられ、上記未硬化液状硬化性樹脂100重量部に対し
て0〜1重量部程度添加される。ラジカル硬化剤として
は、有機過酸化物などが用いられ、上記未硬化液状熱硬
化性樹脂100重量部に対して0.5〜2重量部程度添
加される。A curing accelerator, a radical curing agent, or the like is used to cure the uncured liquid curable resin. Cobalt naphthenate or the like is used as the curing accelerator, and is added in an amount of 0 to 1 part by weight based on 100 parts by weight of the uncured liquid curable resin. An organic peroxide or the like is used as the radical curing agent, and is added in an amount of about 0.5 to 2 parts by weight with respect to 100 parts by weight of the uncured liquid thermosetting resin.
【0011】つぎに、このような未硬化液状硬化性樹脂
組成物を用いて多層構造を有する硬化物を成形する方法
の例を説明する。図1は、多層構造を有する硬化物の一
例を示すものである。この硬化物は、第一色の層1と、
この上の第二色の層2と、この上の第三色の層3とから
なるものである。Next, an example of a method for molding a cured product having a multilayer structure using such an uncured liquid curable resin composition will be described. FIG. 1 shows an example of a cured product having a multilayer structure. This cured product is a layer 1 of the first color,
It is composed of a second color layer 2 on this and a third color layer 3 on this.
【0012】まず、第一色の層1を形成するための未硬
化液状硬化性樹脂組成物(以下、第一樹脂組成物と略記
する。)を、例えば、四角状の金型内に層1の厚さが
0.1〜2.0mm程度になるように流し込む。つい
で、望ましくはこの第一樹脂組成物が完全に硬化する前
にこの上に、第一樹脂組成物と異なる色調に着色された
第二の色の層2を形成するための未硬化液状硬化性樹脂
組成物(以下、第二樹脂組成物と略記する。)を層2の
厚さが0.1〜2.0mm程度になるように流し込む。
さらに、望ましくはこの第二樹脂組成物が完全に硬化す
る前にこの上に、第一樹脂組成物および第二樹脂組成物
と異なる色調に着色された第三色の層3を形成するため
の未硬化液状硬化性樹脂組成物(以下、第三樹脂組成物
と略記する。)を層3の厚さが0.1〜2.0mm程度
になるように流し込み、シート状に成形、硬化する。つ
いで、これを金型内から取り出すと多層構造(図面では
三層構造)を有する硬化物が得られる。First, an uncured liquid curable resin composition (hereinafter abbreviated as a first resin composition) for forming the layer 1 of the first color is layer 1 in a square mold, for example. Pouring to a thickness of 0.1 to 2.0 mm. Then, desirably, before the first resin composition is completely cured, an uncured liquid curable composition for forming a second color layer 2 colored in a different color tone from the first resin composition thereon. A resin composition (hereinafter abbreviated as a second resin composition) is poured so that the layer 2 has a thickness of about 0.1 to 2.0 mm.
Furthermore, it is desirable to form a layer 3 of a third color on the second resin composition before the second resin composition is completely cured, the third color layer 3 having a color tone different from that of the first resin composition and the second resin composition. An uncured liquid curable resin composition (hereinafter abbreviated as a third resin composition) is poured so that the layer 3 has a thickness of about 0.1 to 2.0 mm, molded into a sheet, and cured. Then, this is taken out from the mold to obtain a cured product having a multilayer structure (three-layer structure in the drawing).
【0013】ここでの多層構造を有する硬化物は、三層
からなるものであるが、必ずしもこの限りでなく、目的
とする模様付けに応じて適宜の層数を有する。このよう
にして得られる多層構造を有する硬化物は、各層がそれ
ぞれ異なる色調に着色されているので、縦および横断面
が縞模様のような模様を有するものとなる。The cured product having a multilayer structure here is composed of three layers, but is not limited to this, and has an appropriate number of layers depending on the intended patterning. The cured product having a multi-layered structure obtained in this manner has a stripe-like pattern in its longitudinal and transverse sections because each layer is colored in a different color tone.
【0014】つぎに、上記多層構造を有する硬化物を用
いて樹脂粒子を成形する方法の例について説明する。ま
ず、上記多層構造を有する硬化物をハンマー等を用いて
粗粉砕する。ついで、これらをロール粉砕機、ハンマー
ミル、ジョークラッシャー等を用いて粉砕する。この
後、粒子径0.5〜10mm程度のものを分級すると樹
脂粒子が得られる。Next, an example of a method for molding resin particles using the cured product having the above-mentioned multilayer structure will be described. First, the cured product having the above-mentioned multilayer structure is roughly crushed using a hammer or the like. Then, these are crushed using a roll crusher, a hammer mill, a jaw crusher, or the like. Then, resin particles are obtained by classifying particles having a particle diameter of about 0.5 to 10 mm.
【0015】上記樹脂粒子の粒子径は、上記多層構造を
有する硬化物の層厚以上とする必要はなく、層と層との
境界にまたがる程度の大きさであればよく、また、一層
のみの小さい粒子径のものが混入してもよい。このよう
な樹脂粒子は、個々の粒子が上記多層構造を有する硬化
物のどの層を含んでいるかによって一種以上の色調を有
し、また、見る向きによって視認できる色調数や透明度
が異なるものとなる。また、個々の粒子はそれぞれ形状
が異なる。この樹脂粒子は後述するように加飾成形品を
模様付けするためのものとなるが、このもの自体、すな
わち模様付け粒子自体に模様が付けられたものとなる。The particle size of the resin particles does not have to be equal to or larger than the layer thickness of the cured product having the above-mentioned multilayer structure, and may be any size as long as it straddles the boundary between layers, or only one layer. Small particles may be mixed. Such resin particles have one or more color tones depending on which layer of the cured product each particle contains, and the number of color tones and the transparency that are visible depend on the viewing direction. . Further, each particle has a different shape. As will be described later, the resin particles are used for patterning the decorative molded product, but the resin particles themselves, that is, the patterning particles themselves, are patterned.
【0016】つぎに、上記樹脂粒子を用いて得られる加
飾成形品について説明する。この加飾成形品は、上記樹
脂粒子を透明硬化性樹脂液に配合したものを硬化成形し
て得られるものである。上記樹脂粒子が配合される透明
硬化性樹脂液としては、アクリルシロップ、不飽和ポリ
エステル樹脂等が用いられる。Next, a decorative molded product obtained by using the above resin particles will be described. This decorative molded product is obtained by curing and molding a mixture of the above resin particles and a transparent curable resin liquid. Acrylic syrup, unsaturated polyester resin, etc. are used as the transparent curable resin liquid in which the resin particles are mixed.
【0017】樹脂粒子の配合量は、上記透明硬化性樹脂
液100重量部に対して10〜150重量部程度で、好
ましくは50〜60重量部程度である。10重量部より
少ないと加飾成形品に天然石質感に似た外観が得られ
ず、150重量部を超えると第樹脂粒子と、これが配合
される透明硬化性樹脂液とからなる混合物の粘度が高く
成形することができないためである。The amount of the resin particles blended is about 10 to 150 parts by weight, preferably about 50 to 60 parts by weight, based on 100 parts by weight of the transparent curable resin liquid. If it is less than 10 parts by weight, the decorative molded article does not have a natural stone appearance, and if it exceeds 150 parts by weight, the viscosity of the mixture of the first resin particles and the transparent curable resin liquid in which the particles are blended is high. This is because it cannot be molded.
【0018】樹脂粒子が配合される透明硬化性樹脂液に
は、透明性を損なわない限り、充填材を配合してもよ
い。充填材としては、先に用いられたものと同様のもの
が用いられる。また、透明性を損なわない限り、着色剤
を配合してもよい。着色剤としては、先に用いられたも
のと同様のものが用いられる。樹脂粒子が配合される透
明硬化性樹脂液を硬化させるものとしては、先に用いら
れたものと同様の硬化促進剤、ラジカル硬化剤等が用い
られ、それぞれ上記透明硬化性樹脂液100重量部に対
して0〜1重量部、0.5〜2重量部程度添加される。The transparent curable resin liquid containing the resin particles may contain a filler as long as the transparency is not impaired. As the filler, the same ones as used above are used. A coloring agent may be added as long as the transparency is not impaired. As the colorant, the same ones as used above are used. As a material for curing the transparent curable resin liquid containing the resin particles, the same curing accelerators and radical curing agents as those used above are used, and 100 parts by weight of the transparent curable resin liquid is used. On the other hand, about 0 to 1 part by weight and 0.5 to 2 parts by weight are added.
【0019】このような透明硬化性樹脂組成物を攪拌し
た後、例えば、四角状の金型内に流し込み、硬化、成形
した後、これを金型内から取り出すと加飾成形品が得ら
れ、この後、その表面を研磨加工していわゆるマーボロ
ンなどの擬石を製造することができる。また、上記透明
硬化性樹脂組成物を金型の内壁に塗布し、ゲル化したの
ち、通常のハンドレイアップ法やスプレイアップ法など
によって繊維強化樹脂成形品を形成し、ゲルコート層が
加飾成形品となった繊維強化樹脂成形品を得ることがで
きる。さらに、上記透明硬化性樹脂組成物を目的とする
物体表面に塗布、硬化して加飾成形品としたり、あるい
は、成形型に流し込んで硬化、成形して加飾成形品とす
ることもできる。After stirring such a transparent curable resin composition, for example, it is poured into a square mold, cured and molded, and then taken out from the mold to obtain a decorated molded product, After that, the surface thereof can be polished to produce a pseudolite such as so-called marborone. Further, the transparent curable resin composition is applied to the inner wall of a mold, and after gelling, a fiber-reinforced resin molded product is formed by a usual hand lay-up method or spray-up method, and the gel coat layer is decoratively molded. It is possible to obtain a finished fiber-reinforced resin molded product. Further, the above-mentioned transparent curable resin composition can be applied to the surface of an intended object and cured to give a decorated molded product, or it can be poured into a mold and cured and molded to give a decorated molded product.
【0020】このようにして得られた加飾成形品にあっ
ては、透明樹脂硬化物中に、個々の粒子のほどんどが二
種以上の色調を有する樹脂粒子が分散した状態となって
いる。従って、模様が複雑化し、天然石質感の高い深み
のある成形品が得られる。また、従来の製法のように数
種の樹脂粒子を得るのにそれぞれ別工程で作ることや、
透明硬化性樹脂液に分散させる際に数種の樹脂粒子を組
み合わせる作業はなく、一つの工程によって個々の粒子
が多種の色調を有する樹脂粒子を得ることができ、生産
性が高くなる。In the thus obtained decorative molded product, almost all of the individual particles of the transparent resin cured product are dispersed in the resin particles having a color tone. . Therefore, the pattern becomes complicated, and a deep molded product having a high quality of natural stone can be obtained. Also, to obtain several kinds of resin particles as in the conventional manufacturing method, each is made in a separate process,
There is no work of combining several kinds of resin particles when dispersing them in the transparent curable resin liquid, and resin particles having various color tones can be obtained in each step by one step, resulting in high productivity.
【0021】[0021]
【発明の効果】以上説明したように、本発明の加飾成形
品の製法は、異なる色調に着色した未硬化液状硬化性樹
脂を多層に成形、硬化させた後、この多層構造を有する
硬化物を破砕して樹脂粒子を作り、ついで、この樹脂粒
子を透明硬化性樹脂液に配合したものを硬化成形して加
飾成形品とするものであるので、従来の加飾成形品の製
法に比べて複雑で深み感のある模様付けが可能となり、
天然石質感が高い加飾成形品が容易に得られるという利
点がある。Industrial Applicability As described above, the method for producing a decorative molded product of the present invention is such that an uncured liquid curable resin colored in different tones is molded into multiple layers and cured, and then a cured product having this multilayer structure. The resin particles are crushed to form resin particles, and the resin particles are then mixed with a transparent curable resin liquid to cure and form a decorated molded product. It enables complex and deep patterning,
There is an advantage that a decorative molded product having a high quality of natural stone can be easily obtained.
【0022】[0022]
【図1】 多層構造を有する硬化物の例を示した図であ
る。FIG. 1 is a diagram showing an example of a cured product having a multilayer structure.
Claims (1)
樹脂を多層に成形、硬化させた後、この多層構造を有す
る硬化物を破砕して樹脂粒子を作り、ついで、この樹脂
粒子を透明硬化性樹脂液に配合したものを硬化成形して
加飾成形品とすることを特徴とする加飾成形品の製法。1. An uncured liquid curable resin colored in different tones is molded into multiple layers and cured, and then a cured product having this multilayer structure is crushed to form resin particles, and the resin particles are then transparent cured. A method for producing a decorative molded product, which comprises curing and molding what is mixed with a resin composition to obtain a decorative molded product.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4041761A JPH0794563B2 (en) | 1992-02-27 | 1992-02-27 | Manufacturing method of decorative molded products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4041761A JPH0794563B2 (en) | 1992-02-27 | 1992-02-27 | Manufacturing method of decorative molded products |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05237948A JPH05237948A (en) | 1993-09-17 |
JPH0794563B2 true JPH0794563B2 (en) | 1995-10-11 |
Family
ID=12617390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4041761A Expired - Fee Related JPH0794563B2 (en) | 1992-02-27 | 1992-02-27 | Manufacturing method of decorative molded products |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0794563B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2284612B (en) | 1993-12-03 | 1998-03-11 | Amtico Company Limited The | Colourants, coloured articles and methods of making them |
DE102021127484B4 (en) * | 2021-10-22 | 2023-08-17 | Schock Gmbh | Process for producing a particulate recyclate from quartz composite |
-
1992
- 1992-02-27 JP JP4041761A patent/JPH0794563B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH05237948A (en) | 1993-09-17 |
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