JPH08309932A - Grainlike sheet - Google Patents
Grainlike sheetInfo
- Publication number
- JPH08309932A JPH08309932A JP7145203A JP14520395A JPH08309932A JP H08309932 A JPH08309932 A JP H08309932A JP 7145203 A JP7145203 A JP 7145203A JP 14520395 A JP14520395 A JP 14520395A JP H08309932 A JPH08309932 A JP H08309932A
- Authority
- JP
- Japan
- Prior art keywords
- stone
- layer
- tone
- sheet
- grainlike
- 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
Links
Landscapes
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は石目調積層シートに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain-finished laminated sheet.
【０００２】[0002]
【従来の技術】近年、例えば水廻に使用するサニタリー
製品等において、石材に代わり樹脂製の石目調成形品が
使用されるようになってきている。石目調成形品は石目
調シートを二次成形することにより得られるものであ
る。2. Description of the Related Art In recent years, for example, in sanitary products used for water circulation, resin stone-grain molded products have been used instead of stone materials. The stone-tone molded product is obtained by secondarily molding a stone-tone sheet.
【０００３】従来の石目調シートは、セルロース繊維、
雲母、セラミック等の石目調材を添加した樹脂より得ら
れる単層シートであるが、これを真空成形法により二次
成形した場合、シートは軟化・伸長されるのに対して石
目調材は熱に対して可塑性を示さないため、石目調材が
シート表面に露出してしまいフィッシュアイのような外
観不良現象が起こるという問題があった。よって、従来
の石目調シートは成形品の外観を確保するため、その二
次成形は圧空成形法によらざるを得ないが、圧空成形法
は真空成形法に比べ、金型コストが高い、成形圧力が高
い、成形形状に制限がある、より高度な成形技術を必要
とする等の問題があった。A conventional stone-grained sheet is a cellulose fiber,
It is a single layer sheet obtained from a resin to which a stone material such as mica or ceramic is added, but when this is subjected to secondary molding by a vacuum forming method, the sheet is softened and stretched, while the stone material However, since it does not exhibit plasticity with respect to heat, there is a problem that the grain-finished material is exposed on the surface of the sheet and a phenomenon of poor appearance such as fish eyes occurs. Therefore, in order to ensure the appearance of the molded product in the conventional stone-tone sheet, the secondary molding has no choice but to use the pressure forming method, but the pressure forming method has a higher die cost than the vacuum forming method. There are problems that the molding pressure is high, the molding shape is limited, and more advanced molding technology is required.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記従来の
問題に鑑み、真空成形においても石目調材が露出するこ
となくフラットな表面外観を得ることができる石目調シ
ートを提供することを目的とする。SUMMARY OF THE INVENTION In view of the above problems of the prior art, the present invention provides a grain-tone sheet which can obtain a flat surface appearance without exposing the grain-tone material even in vacuum forming. With the goal.
【０００５】[0005]
【課題を解決するための手段】即ち、本発明は石目調層
の少なくとも一面に透明層を積層したことを特徴とする
石目調シートである。That is, the present invention is a stone-grained sheet characterized by laminating a transparent layer on at least one surface of the stone-grained layer.
【０００６】以下、本発明を詳細に説明する。The present invention will be described in detail below.
【０００７】本発明において石目調層とは、石目調材を
添加した樹脂よりなる層をいう。In the present invention, the grain-tone layer means a layer made of a resin to which a grain-tone material is added.
【０００８】石目調層に使用される樹脂としては、例え
ばポリスチレン系樹脂（ＰＳ）、アクリロニトリル−ブ
タジエン−スチレン系樹脂（ＡＢＳ）、アクリロニトリ
ル−スチレン系樹脂（ＡＳ）、ポリ塩化ビニール樹脂
（ＰＶＣ）、オレフィン系樹脂（ＰＯ）等が挙げられる
が、これらのうちでもＰＳが押出加工性、真空成形性、
経済性の点で好ましい。Examples of the resin used for the stone-tone layer are polystyrene resin (PS), acrylonitrile-butadiene-styrene resin (ABS), acrylonitrile-styrene resin (AS), polyvinyl chloride resin (PVC). , Olefin resin (PO) and the like. Among these, PS is extrudable, vacuum formable,
It is preferable in terms of economy.
【０００９】また、石目調材としては、セルロース繊
維、雲母、セラミック等が挙げられるが、これらは何れ
を使用してもかまわない。Examples of the stone material include cellulose fibers, mica and ceramics, and any of these may be used.
【００１０】石目調材の樹脂への添加割合は、好ましく
は樹脂１００重量部に対して石目調材０．５〜５．０重
量部、更に好ましくは１．０〜２．０重量部である。該
範囲内であれば石目調材の樹脂に対する分散性が外観的
に良好となり好ましい。The ratio of addition of the stone material to the resin is preferably 0.5 to 5.0 parts by weight, more preferably 1.0 to 2.0 parts by weight, based on 100 parts by weight of the resin. Is. Within this range, the dispersibility of the grain-tone material with respect to the resin is excellent in appearance, which is preferable.
【００１１】透明層に使用される樹脂としては、例えば
ＰＳ、ＡＳ、ポリメチルメタアクリレート系樹脂（ＰＭ
ＭＡ）、ポリカーボネート（ＰＣ）等石目調層と容易に
接着できる透明性樹脂であればよく、一般的には石目調
層にＰＳが多く使用されるところから、ＰＳが最も好ま
しい。尚、本発明にておいて透明とは、無色透明のみな
らず有色透明をも含む。有色透明層を積層することによ
り、より深みのある外観を得ることも可能である。The resin used for the transparent layer is, for example, PS, AS, polymethylmethacrylate resin (PM
Any transparent resin such as MA) and polycarbonate (PC) that can be easily adhered to the stone-tone layer may be used, and PS is most preferable because PS is generally used in the stone-tone layer. In the present invention, the term “transparent” includes not only colorless transparency but also colored transparency. It is possible to obtain a deeper appearance by laminating colored transparent layers.
【００１２】透明層／石目調層の組み合わせしては、両
層に同一の樹脂を用いても異なる樹脂を用いてもよく、
例えばＰＳ／ＰＳ、ＰＭＭＡ／ＡＢＳ、ＡＳ／ＡＳ等の
組み合わせが挙げられる。In the combination of the transparent layer and the stone-tone layer, the same resin or different resins may be used for both layers,
For example, a combination of PS / PS, PMMA / ABS, AS / AS, etc. may be mentioned.
【００１３】また、透明層の石目調層に対する層厚比は
特に限定されないが、好ましくは石目調層：透明層が
１．０：０．５〜１．０、更に好ましくは１．０：０．
８〜１．０である。該範囲内であれば、二次成形後の石
目調層表面の石目調材の凹凸を透明層により吸収できる
ため外観不良を防止でき、更には石目調材が浮き上がる
ような高級外観が得られ好ましい。The layer thickness ratio of the transparent layer to the stone-like layer is not particularly limited, but is preferably 1.0: 0.5 to 1.0 for the stone-tone layer: transparent layer, more preferably 1.0. : 0.
8 to 1.0. Within this range, the transparent layer can absorb the unevenness of the stone-tone material on the surface of the stone-tone layer after the secondary molding, so that the appearance defect can be prevented, and further, the high-grade appearance that the stone-tone material floats up. Obtained and preferred.
【００１４】本発明は石目調層の少なくとも一面に透明
層を積層することが必要であるが、目的に応じて石目調
層、透明層以外に他の層を積層してもよい。例えば、石
目調層の透明層を積層していない面に補強層、耐薬品性
を有する層等を積層することにより、本発明シートの適
用用途を拡げることができる。In the present invention, it is necessary to laminate a transparent layer on at least one surface of the stone-tone layer, but other layers may be laminated in addition to the stone-tone layer and the transparent layer depending on the purpose. For example, the application of the sheet of the present invention can be expanded by laminating a reinforcing layer, a layer having chemical resistance, and the like on the surface of the stone-tone layer where the transparent layer is not laminated.
【００１５】本発明の石目調シートは、共押出し、ラミ
ネート、プレス等従来公知の方法により製造できるが、
共押出しによるのが生産性や経済性に優れると共に、全
層厚や石目調層と透明層の層厚比の設定が容易で、製品
設計の自由度が拡げられるなどの点で好ましい。The stone-grained sheet of the present invention can be produced by a conventionally known method such as co-extrusion, laminating and pressing.
Coextrusion is preferable because it is excellent in productivity and economical efficiency, and it is easy to set the total layer thickness or the layer thickness ratio between the stone-tone layer and the transparent layer, and the degree of freedom in product design is expanded.
【００１６】本発明の石目調シートは二次成形すること
により、例えば浴室収納キャビネット、洗面収納キャビ
ネット、トイレ収納キャビネット、洗面ボール、カウン
ター等に好適に使用できる。The stone-tone sheet of the present invention can be suitably used in, for example, a bathroom storage cabinet, a washbasin storage cabinet, a toilet storage cabinet, a washbasin, a counter, etc. by secondary molding.
【００１７】[0017]
【実施例】以下、本発明を実施例により更に詳細に説明
する。 実施例１ 石目調層としてセラミック（ダイヤ工業製ＤＭ−３）を
ポリスチレン（旭化成工業製Ｈ８５０７）１００重量部
に対し２重量部混合した樹脂を、透明層としてポリスチ
レン（旭化成工業製ＳＤ１２０）を使用し、共押出しに
より石目調層１．５ｍｍ、透明層１．５ｍｍの二層シー
トを得た。該シートを真空成形により二次成形したとこ
ろ、透明層を積層した側の石目調層表面へは石目調材が
露出することなく、しかも深みのある高級外観を得るこ
とができた。 比較例１ 透明層を設けない以外は実施例１と同様にして押出し成
形により単層シートを得た。該シートを真空成形により
二次成形したところ、表面に石目調材が露出しフィッシ
ュアイのような状態となり、実用に供し難いものであっ
た。The present invention will be described in more detail with reference to the following examples. Example 1 A resin in which 2 parts by weight of ceramic (DM-3 manufactured by Diamond Industry Co., Ltd.) is mixed with 100 parts by weight of polystyrene (H8507 manufactured by Asahi Chemical Industry Co., Ltd.) as a stone-tone layer, and polystyrene (SD120 manufactured by Asahi Chemical Industry Co., Ltd.) is used as a transparent layer. Then, a two-layer sheet having a stone-grained layer of 1.5 mm and a transparent layer of 1.5 mm was obtained by coextrusion. When the sheet was subjected to secondary forming by vacuum forming, it was possible to obtain a deep and high-grade appearance without exposing the stone-tone material to the surface of the stone-tone layer on which the transparent layer was laminated. Comparative Example 1 A single layer sheet was obtained by extrusion molding in the same manner as in Example 1 except that the transparent layer was not provided. When the sheet was subjected to secondary forming by vacuum forming, the grain-finished material was exposed on the surface and the state became like fish eyes, making it difficult to put into practical use.
【００１８】[0018]
【発明の効果】本発明によれば、石目調層の少なくとも
一面に透明層を積層することにより、比較的成形圧力の
低い真空成形においても石目調材が露出することなくフ
ラットな表面外観を得ることができる。また、従来の石
目調シートの二次成形に一般的に用いられていた圧空成
形法に比べ金型コスト等も安価にできる。According to the present invention, by laminating a transparent layer on at least one surface of a stone-tone layer, a flat surface appearance without exposing the stone-tone material even in vacuum forming where the forming pressure is relatively low. Can be obtained. Further, the die cost and the like can be reduced as compared with the pressure air forming method which is generally used for the secondary forming of the conventional stone tone sheet.
【００１９】更に、従来の単層シートでは得られない、
石目調材が浮き上がるような高級外観が透明層を積層す
ることにより得られる。Further, it cannot be obtained by the conventional single layer sheet,
A high-quality appearance in which a grain-finished material is lifted is obtained by laminating transparent layers.
Claims (2)
層したことを特徴とする石目調シート。1. A stone-tone sheet comprising a transparent layer laminated on at least one surface of the stone-tone layer.
特徴とする請求項１記載の石目調シート。2. The stone-grained sheet according to claim 1, wherein the transparent layers are laminated by coextrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07145203A JP3087014B2 (en) | 1995-05-22 | 1995-05-22 | Stone-grained sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07145203A JP3087014B2 (en) | 1995-05-22 | 1995-05-22 | Stone-grained sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08309932A true JPH08309932A (en) | 1996-11-26 |
| JP3087014B2 JP3087014B2 (en) | 2000-09-11 |
Family
ID=15379798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07145203A Expired - Lifetime JP3087014B2 (en) | 1995-05-22 | 1995-05-22 | Stone-grained sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3087014B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0592532A (en) * | 1991-10-03 | 1993-04-16 | Dainippon Printing Co Ltd | Molding sheet for styrene resin molded products |
| JPH05229073A (en) * | 1992-02-21 | 1993-09-07 | Hamani Kasei Kk | Acrylic molded article and its manufacturing method |
| JPH06248579A (en) * | 1993-02-23 | 1994-09-06 | Dainippon Printing Co Ltd | Manufacturing method of suede-like decorative sheet |
| JPH08174778A (en) * | 1994-12-22 | 1996-07-09 | Kyowa Leather Cloth Co Ltd | Laminated body |
| JPH08276544A (en) * | 1995-04-05 | 1996-10-22 | Dainippon Printing Co Ltd | Decorative molded products |
-
1995
- 1995-05-22 JP JP07145203A patent/JP3087014B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0592532A (en) * | 1991-10-03 | 1993-04-16 | Dainippon Printing Co Ltd | Molding sheet for styrene resin molded products |
| JPH05229073A (en) * | 1992-02-21 | 1993-09-07 | Hamani Kasei Kk | Acrylic molded article and its manufacturing method |
| JPH06248579A (en) * | 1993-02-23 | 1994-09-06 | Dainippon Printing Co Ltd | Manufacturing method of suede-like decorative sheet |
| JPH08174778A (en) * | 1994-12-22 | 1996-07-09 | Kyowa Leather Cloth Co Ltd | Laminated body |
| JPH08276544A (en) * | 1995-04-05 | 1996-10-22 | Dainippon Printing Co Ltd | Decorative molded products |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3087014B2 (en) | 2000-09-11 |
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