JP3087014B2 - Stone-grained sheet - Google Patents
Stone-grained sheetInfo
- Publication number
- JP3087014B2 JP3087014B2 JP07145203A JP14520395A JP3087014B2 JP 3087014 B2 JP3087014 B2 JP 3087014B2 JP 07145203 A JP07145203 A JP 07145203A JP 14520395 A JP14520395 A JP 14520395A JP 3087014 B2 JP3087014 B2 JP 3087014B2
- Authority
- JP
- Japan
- Prior art keywords
- stone
- layer
- grained
- sheet
- resin
- 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 - Lifetime
Links
Landscapes
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
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 stone-grained 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 a sanitary product used for water circulation, a stone-like molded product made of resin has been used instead of a stone material. The stone-grained molded article is obtained by secondary forming a stone-grained 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。[0003] Conventional stone-grained sheets include cellulose fibers,
This is a single-layer sheet obtained from a resin to which a grain preparation such as mica and ceramic is added. When this sheet is secondarily formed by a vacuum forming method, the sheet is softened and stretched, whereas the sheet is softened and elongated. Has no plasticity to heat, so that the stone preparation material is exposed on the sheet surface, and there is a problem that a poor appearance phenomenon such as fish eye occurs. Therefore, in order to ensure the appearance of the molded product of the conventional stone-grained sheet, the secondary molding must be performed by the compressed air molding method, but the compressed air molding method has a higher mold cost than the vacuum molding method. There have been problems such as high molding pressure, limitations on the molding shape, and the need for more advanced molding techniques.
【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-mentioned problems, the present invention provides a stone-grained sheet capable of obtaining a flat surface appearance without exposing the stone-grained material even in vacuum forming. With the goal.
【０００５】[0005]
【課題を解決するための手段】即ち、本発明は共押出し
により、石目調材を添加した樹脂よりなる石目調層の少
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 provides a co-extrusion method.
Thus, a stone-grained sheet is characterized in that a transparent layer is laminated on at least one surface of a stone-grained layer made of a resin to which a stone- grained material is added .
【０００６】以下、本発明を詳細に説明する。Hereinafter, the present invention will be described in detail.
【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。[0007] In the present invention, the stone-grained layer means a layer made of a resin to which a stone-grained 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-like layer include polystyrene resin (PS), acrylonitrile-butadiene-styrene resin (ABS), acrylonitrile-styrene resin (AS), and polyvinyl chloride resin (PVC). And olefin-based resins (PO). Among them, PS is an extrudable material, a vacuum moldable material,
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。[0009] Examples of the stone preparation include cellulose fiber, mica, ceramic and the like, 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 addition ratio of the grain preparation to the resin is preferably 0.5 to 5.0 parts by weight, more preferably 1.0 to 2.0 parts by weight, per 100 parts by weight of the resin. It is. Within this range, the dispersibility of the stone preparation material in the resin is good 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。As the resin used for the transparent layer, for example, PS, AS, polymethyl methacrylate resin (PM
Any transparent resin such as MA) and polycarbonate (PC) can be used as long as it is a transparent resin that can be easily bonded to the grain-grained layer. In the present invention, “transparent” includes not only colorless and transparent but also colored and transparent. By laminating colored transparent layers, it is also possible to obtain a deeper appearance.
【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。As for the combination of the transparent layer and the stone-like layer, the same resin or different resins may be used for both layers.
For example, a combination of PS / PS, PMMA / ABS, AS / AS, and the like can be given.
【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 thickness ratio of the transparent layer to the stone layer is not particularly limited, but is preferably 1.0: 0.5 to 1.0, more preferably 1.0 to 1.0. : 0.
8 to 1.0. Within this range, the unevenness of the grain-grained material on the surface of the grain-grained layer after the secondary molding can be absorbed by the transparent layer, thereby preventing poor appearance. 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 according to the purpose. For example, by laminating a reinforcing layer, a layer having chemical resistance and the like on the surface of the stone-grained layer where the transparent layer is not laminated, the application of the sheet of the present invention can be expanded.
【００１５】本発明の石目調シートは、共押出しにより
製造す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 is obtained by co-extrusion.
Manufacturing is preferred in that it is excellent in productivity and economy, and that the total thickness and the layer thickness ratio between the stone-grain layer and the transparent layer can be easily set, and the degree of freedom in product design can be 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。By subjecting the stone-like sheet of the present invention to secondary molding, it can be suitably used for, for example, bathroom storage cabinets, washroom storage cabinets, toilet storage cabinets, washbasin balls, counters and the like.
【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 obtained by mixing 2 parts by weight of ceramic (DM-3 manufactured by Dia Kogyo Co., Ltd.) with 100 parts by weight of polystyrene (H8507 manufactured by Asahi Kasei Kogyo Co., Ltd.) was used as the stone-grain layer, and polystyrene (SD120 manufactured by Asahi Kasei Kogyo Co., Ltd.) was used as the transparent layer. Then, a co-extrusion was performed to obtain a two-layer sheet having a stone-grain layer 1.5 mm and a transparent layer 1.5 mm. When the sheet was secondarily formed by vacuum forming, the fine grained material was not exposed on the surface of the grainy layer on the side where the transparent layer was laminated, and a deep high-grade appearance could be obtained. Comparative Example 1 A single-layer sheet was obtained by extrusion 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 stone preparation material was exposed on the surface and became a fish-eye state, which was difficult to be put to 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, a transparent surface layer is laminated on at least one surface of the stone-grained layer, so that the grain-grained material is not exposed even in vacuum forming at a relatively low molding pressure, so that a flat surface appearance is obtained. Can be obtained. Also, the die cost and the like can be reduced as compared with the compressed air molding method generally used for the secondary molding of the conventional stone-grained 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。Furthermore, it cannot be obtained with a conventional single-layer sheet.
A high-grade appearance in which the stone-grained material rises can be obtained by laminating the transparent layers.
フロントページの続き (56)参考文献 特開 平５−229073（ＪＰ，Ａ) 特開 平６−248579（ＪＰ，Ａ) 特開 平５−92532（ＪＰ，Ａ) 特開 平８−174778（ＪＰ，Ａ) 特開 平８−276544（ＪＰ，Ａ) 加工技術研究会発行 最新ラミネート 加工便覧 ｐ．854−857 1989年６月30 日 (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 1/00 - 35/00 B29C 43/00 - 43/58 Continuation of the front page (56) References JP-A-5-229073 (JP, A) JP-A-6-248579 (JP, A) JP-A-5-92532 (JP, A) JP-A-8-174778 (JP) , A) Japanese Patent Laid-Open No. 8-276544 (JP, A) Latest Handbook of Laminating Processing published by Processing Technology Research Group p. 854-857 June 30, 1989 (58) Fields investigated (Int. Cl. 7 , DB name) B32B 1/00-35/00 B29C 43/00-43/58
Claims (1)
脂よりなる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。1. A tree to which a stone-grained wood is added by co-extrusion.
A stone-tone sheet comprising a transparent layer laminated on at least one surface of a stone-tone layer made of fat .
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 JPH08309932A (en) | 1996-11-26 |
| JP3087014B2 true 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) |
Family Cites Families (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 product |
| JPH05229073A (en) * | 1992-02-21 | 1993-09-07 | Hamani Kasei Kk | Acrylic resin molded product and production thereof |
| JP3142095B2 (en) * | 1993-02-23 | 2001-03-07 | 大日本印刷株式会社 | Method for producing suede-like decorative sheet |
| JPH08174778A (en) * | 1994-12-22 | 1996-07-09 | Kyowa Leather Cloth Co Ltd | Laminated molded product |
| JPH08276544A (en) * | 1995-04-05 | 1996-10-22 | Dainippon Printing Co Ltd | Decorative molded product |
-
1995
- 1995-05-22 JP JP07145203A patent/JP3087014B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| 加工技術研究会発行 最新ラミネート加工便覧 ｐ．８５４−８５７ １９８９年６月３０日 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08309932A (en) | 1996-11-26 |
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