JP2020015192A - Decorative sheet, and decorative metal plate using the sheet - Google Patents

Decorative sheet, and decorative metal plate using the sheet Download PDF

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JP2020015192A
JP2020015192A JP2018138345A JP2018138345A JP2020015192A JP 2020015192 A JP2020015192 A JP 2020015192A JP 2018138345 A JP2018138345 A JP 2018138345A JP 2018138345 A JP2018138345 A JP 2018138345A JP 2020015192 A JP2020015192 A JP 2020015192A
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decorative sheet
convex
decorative
mirror
embossed
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JP7142508B2 (en
Inventor
井原 誠司
Seiji Ihara
誠司 井原
幸平 山谷
Kohei Yamatani
幸平 山谷
高木 亮
Akira Takagi
亮 高木
智大 川中
Tomohiro Kawanaka
智大 川中
孝 永田
Takashi Nagata
孝 永田
亮一 栗山
Ryoichi Kuriyama
亮一 栗山
加藤 聡
Satoshi Kato
聡 加藤
幸男 水本
Yukio Mizumoto
幸男 水本
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Okura Industrial Co Ltd
Nippon Steel Metal Products Co Ltd
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Okura Industrial Co Ltd
Nippon Steel Metal Products Co Ltd
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Priority to JP2022123722A priority patent/JP7471351B2/en
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Abstract

To provide a good touch smooth decorative sheet despite the fact that designability is given by an emboss processing part, according to the present invention, and in other words, to provide a decorative sheet on which the emboss processing part cannot be tactually confirmed, but be visually confirmed.SOLUTION: According to a decorative sheet, the decorative sheet comprises a mirror surface part and an emboss processing part. The emboss processing part comprises a recess having a width of 0.1 to 15 mm and a plurality of projection parts inside the recess, and an upper surface of each of the projection parts does not exceed a surface of the mirror surface part.SELECTED DRAWING: Figure 1

Description

本発明は、エンボス加工により意匠性が付与された化粧シートに関する。また該化粧シートを貼合した化粧金属板に関する。   The present invention relates to a decorative sheet provided with a design property by embossing. The present invention also relates to a decorative metal plate to which the decorative sheet is attached.

従来、建物の壁、天井等の内装、ユニットバスやシステムキッチン、家具、キャビネット等の表面装飾材として、鏡面部とエンボス加工部とを備える化粧シートが採用されている。該化粧シートには、鏡面部とエンボス加工部の光沢性の違いにより意匠性が付与される。
図12に示す化粧シート1は、その表面に鏡面部2とエンボス加工部3とを備えており、鏡面部2とエンボス加工部3の光沢性の違いにより、化粧シート1の表面にはライン状の柄が浮き上がる(図12(A))。従来の化粧シート1は、図12(B)(C)に記すように、エンボス加工部3が複数の凸部3bから形成されているものが多い。
2. Description of the Related Art A decorative sheet having a mirror surface portion and an embossed portion has been conventionally used as a surface decoration material for an interior such as a wall and a ceiling of a building, a unit bath, a system kitchen, furniture, and a cabinet. The decorative sheet is given a design property by a difference in gloss between the mirror surface portion and the embossed portion.
The decorative sheet 1 shown in FIG. 12 has a mirror surface portion 2 and an embossed portion 3 on its surface, and a difference in glossiness between the mirror surface portion 2 and the embossed portion 3 causes the surface of the decorative sheet 1 to have a line shape. (FIG. 12A). As shown in FIGS. 12B and 12C, the conventional decorative sheet 1 often has an embossed portion 3 formed from a plurality of convex portions 3b.

特許文献1は傷の目立たない鏡面エンボス化粧シート及びその製造に用いる鏡面エンボス版に関する発明である。特許文献1では、エンボス加工部(エンボス部)の面積を20〜50%、鏡面部の面積を50〜80%とすることにより、シートの鏡面性を維持したまま、該化粧シートの埃や傷が目立つことを抑制する。
特許文献2は化粧金属板に関する発明で、エンボス加工(型押し)により意匠性が付与された化粧シートが開示されている。該化粧シートは、エンボス加工により形成される微細な凸部の上面が平らであることを特徴とする。凸部上面が平らである為、該凸部が爪等で引っかかれても、光沢性が大きく変化せず、傷が目立ち難い。
Patent Literature 1 is an invention related to a mirror-embossed decorative sheet having no noticeable scratches and a mirror-embossed plate used for manufacturing the same. In Patent Document 1, by setting the area of the embossed portion (embossed portion) to 20 to 50% and the area of the mirror surface to 50 to 80%, dust and scratches on the decorative sheet can be maintained while the mirror surface of the sheet is maintained. Suppresses conspicuousness.
Patent Literature 2 is an invention relating to a decorative metal plate, and discloses a decorative sheet provided with a design property by embossing (embossing). The decorative sheet is characterized in that the fine projections formed by embossing have a flat upper surface. Since the upper surface of the convex portion is flat, even if the convex portion is scratched by a nail or the like, the gloss does not significantly change, and the scratch is hardly noticeable.

特開2006−212909号公報JP 2006-212909 A 特開2010−42575号公報JP 2010-42575 A

エンボス加工された化粧シートは、通常、その表面を手で撫でるとエンボスに起因する凹凸を感じる。しかしながら、近年、エンボス加工部により意匠性が付与されているにもかかわらず、手触りは滑らかな化粧シートが求められている。本発明はこのようなシートの提供を課題とする。換言すれば、視覚ではエンボス加工部を確認でき、触覚では確認できない化粧シートの提供を課題とする。
以下、必要に応じ、視覚でエンボス加工部を容易に確認できる状態を「柄立ちが良い」、視覚で確認でき難い状態を「柄立ちが悪い」と表現する。
The embossed decorative sheet usually feels irregularities caused by embossing when its surface is stroked by hand. However, in recent years, there has been a demand for a decorative sheet having a smooth touch despite the fact that the embossed portion imparts design properties. An object of the present invention is to provide such a sheet. In other words, it is an object to provide a decorative sheet in which the embossed portion can be confirmed visually but cannot be confirmed by touch.
Hereinafter, as necessary, a state in which the embossed portion can be easily visually confirmed is expressed as “good pattern”, and a state in which it is difficult to visually confirm the embossed part is expressed as “poor pattern”.

一般的なエンボスロールは、ロール状の鉄芯に銅メッキを行う等した鏡面ロールに、機械彫やエッチング法等によって微細な凹部を設けて作成される。エンボスロールの凹部は化粧シートに反転して転写される為、一般的な化粧シートは、エンボス加工部が凸部となり、鏡面部よりも突出する。
本発明者らは、エンボス加工部が鏡面部に対し突出していると、手で触ったときに凹凸を感じやすいことを見出し、更にはエンボス加工部が鏡面部に対し凹んでおり、尚且つその幅が十分に狭いと、手で触ったときに凹凸を感じにくいことを見出した。そこでエンボス加工部を幅の狭い凹部により形成することとしたが、エンボス加工部が単調な筋状の凹みのみでは柄立ちが悪い為、該凹部内に凸部を形成することとした。
A general embossing roll is produced by providing a fine concave portion by mechanical engraving, etching, or the like, on a mirror-finished roll obtained by plating a roll-shaped iron core with copper. Since the concave portion of the embossing roll is inverted and transferred to the decorative sheet, the embossed portion of a general decorative sheet becomes a convex portion and protrudes from the mirror surface portion.
The present inventors have found that when the embossed portion protrudes with respect to the mirror surface portion, it is easy to feel irregularities when touched by hand, and furthermore, the embossed portion is concave with respect to the mirror surface portion, and furthermore, It was found that if the width was sufficiently small, it was difficult to feel unevenness when touched by hand. Therefore, the embossed portion is formed by a narrow concave portion. However, since the embossed portion alone has poor patterning only with a monotonous streak-shaped concave portion, a convex portion is formed in the concave portion.

即ち本発明によると、上記課題を解決する為の手段として鏡面部とエンボス加工部を備える化粧シートにおいて、前記エンボス加工部が、幅0.1〜15mmの凹部と、該凹部内にある複数の凸部とからなり、各凸部の上面が鏡面部の面を上回らないことを特徴とする化粧シートが提供される。
また前記凸部の上面と前記鏡面部の面との差が0〜10μmであることを特徴とする前記化粧シートが提供される。
また前記凸部の上面と前記鏡面部の面との差が0μmを超え、10μm以下であることを特徴とする前記化粧シートが提供される。
That is, according to the present invention, in a decorative sheet provided with a mirror surface portion and an embossed portion as means for solving the above-mentioned problems, the embossed portion has a concave portion having a width of 0.1 to 15 mm, and a plurality of concave portions in the concave portion. There is provided a decorative sheet comprising a convex portion, wherein the upper surface of each convex portion does not exceed the surface of the mirror portion.
The decorative sheet is provided, wherein a difference between an upper surface of the convex portion and a surface of the mirror surface portion is 0 to 10 μm.
In addition, there is provided the decorative sheet, wherein a difference between an upper surface of the convex portion and a surface of the mirror surface portion is more than 0 μm and 10 μm or less.

また前記凸部が略筋状であり、隣接する凸部との間に形成される間隔が70〜1000μmであることと特徴とする前記化粧シートが提供される。
また前記凸部が略格子状であり、格子の一辺の長さが150〜1000μmであることを特徴とする前記化粧シートが提供される。
また前記凸部が突起状であり、隣接する凸部との間に形成される間隔が30〜1000μmであることを特徴とする前記化粧シートが提供される。
また前記鏡面部の面積が、フィルム全体の面積の50%を超えることを特徴とする前記化粧シートが提供される。
更に、金属板に前記化粧シートを貼合したことを特徴とする化粧金属板が提供される。
Further, the decorative sheet is provided, wherein the convex portion has a substantially streak shape, and an interval formed between adjacent convex portions is 70 to 1000 μm.
Further, the decorative sheet is provided, wherein the convex portion has a substantially lattice shape, and a length of one side of the lattice is 150 to 1000 μm.
Further, the decorative sheet is provided, wherein the convex portion has a projecting shape, and an interval formed between the convex portion and the adjacent convex portion is 30 to 1000 μm.
Further, the decorative sheet is provided, wherein the area of the mirror portion exceeds 50% of the area of the entire film.
Further, there is provided a decorative metal plate characterized by laminating the decorative sheet on a metal plate.

本発明の化粧シートはエンボス加工部が幅の狭い凹部からなるため、手で触れられたときに凹凸感のない滑らかな触感を与える。また該凹部内に複数の凸部を備える為、柄立ちが良く、エンボス加工部が視覚により確認されやすい。特に凸部の上面と鏡面部の面(ツラ)の差が0〜10μm、更には0μmを超え10μm以下であると、柄立ちが良い。   Since the embossed portion of the decorative sheet of the present invention is formed of a narrow concave portion, it gives a smooth tactile sensation without any unevenness when touched by hand. Further, since a plurality of convex portions are provided in the concave portion, the pattern is good and the embossed portion is easily visually recognized. In particular, when the difference between the upper surface of the convex portion and the surface of the mirror surface portion (chatter) is 0 to 10 μm, and more preferably more than 0 μm and 10 μm or less, the pattern is good.

また該凸部の間隔が広い、具体的には以下の(1)〜(3)である場合、化粧シートは汚染され難い。
(1)凸部が略筋状である場合は、隣接する凸部との間に形成される間隔が70〜1000μm。
(2)凸部が略格子状である場合は、格子の一辺の長さが150〜1000μm。
(3)凸部が突起状であり、隣接する凸部との間に形成される間隔が30〜1000μm。
When the interval between the convex portions is wide, specifically, in the following (1) to (3), the decorative sheet is hardly contaminated.
(1) In the case where the convex portions are substantially streaked, the interval formed between adjacent convex portions is 70 to 1000 μm.
(2) When the protrusions are substantially lattice-shaped, the length of one side of the lattice is 150 to 1000 μm.
(3) The protruding portion has a protruding shape, and an interval formed between adjacent protruding portions is 30 to 1000 μm.

本発明の化粧シートの模式的平面図(A)とそのa−a’断面図(B)、b−b’断面図(C)である。It is a schematic plan view (A) of the decorative sheet of the present invention, its a-a 'sectional view (B), and b-b' sectional view (C). 本発明の化粧シートの模式的平面図である。It is a schematic plan view of the decorative sheet of the present invention. 本発明の化粧シートの模式的平面図である。It is a schematic plan view of the decorative sheet of the present invention. 実施例1の化粧シートの表面形状を、高い位置にあるものが薄い色、低い位置にあるものが濃い色となるように画像処理したものである。The surface shape of the decorative sheet of Example 1 was subjected to image processing so that a higher position had a light color and a lower position had a dark color. 実施例2の化粧シートの表面形状を、高い位置にあるものが薄い色、低い位置にあるものが濃い色となるように画像処理したものである。The surface shape of the decorative sheet of Example 2 is image-processed such that a high position has a light color and a low position has a dark color. 実施例3の化粧シートの表面形状を、高い位置にあるものが薄い色、低い位置にあるものが濃い色となるように画像処理したものである。The surface shape of the decorative sheet of Example 3 is image-processed such that a high position has a light color and a low position has a dark color. 実施例4の化粧シートの表面形状を、高い位置にあるものが薄い色、低い位置にあるものが濃い色となるように画像処理したものである。The surface shape of the decorative sheet of Example 4 was subjected to image processing so that a higher position had a light color and a lower position had a dark color. 実施例5の化粧シートの表面形状を、高い位置にあるものが薄い色、低い位置にあるものが濃い色となるように画像処理したものである。The surface shape of the decorative sheet of Example 5 is image-processed such that a high position has a light color and a low position has a dark color. 実施例6の化粧シートの表面形状を、高い位置にあるものが薄い色、低い位置にあるものが濃い色となるように画像処理したものである。The surface shape of the decorative sheet of Example 6 is image-processed such that a high position has a light color and a low position has a dark color. 実施例7の化粧シートの表面形状を、高い位置にあるものが薄い色、低い位置にあるものが濃い色となるように画像処理したものである。The surface shape of the decorative sheet of Example 7 is image-processed such that a high position has a light color and a low position has a dark color. 比較例1の化粧シートの表面形状を、高い位置にあるものが薄い色、低い位置にあるものが濃い色となるように画像処理したものである。The surface shape of the decorative sheet of Comparative Example 1 was subjected to image processing such that a higher position had a light color and a lower position had a dark color. 従来の化粧シートの模式的平面図(A)とその部分拡大図(B)、部分拡大図のa−a’の断面図(C)である。It is the schematic plan view (A) of the conventional decorative sheet, its partial enlarged view (B), and sectional view (C) of a-a 'of a partial enlarged view.

以下、本発明を詳細に説明する。尚、各図面中、同一符号は同一または同等の構成要素を表している。また本発明は以下の形態に限定されるものではなく、種々の形態をとることができる。   Hereinafter, the present invention will be described in detail. In the drawings, the same reference numerals represent the same or equivalent components. Further, the present invention is not limited to the following embodiments, and can take various embodiments.

[化粧シート]
(樹脂組成)
本発明の化粧シートは熱可塑性樹脂からなる。該熱可塑性樹脂は特に限定されるものではなく、従来公知の材料を適宜選択して用いることができる。具体的には、ポリ塩化ビニル、ポリエチレンテレフタレート、ポリトリメチレンテレフタレート、ポリブチレンテレフタレート、ポリアミド、ポリエチレン、ポリプロピレン、ポリカーボネート、ポリエチレンナフタレート、エチレン・酢酸ビニル共重合体、エチレン・アクリル酸共重合体、エチレン・アクリル酸エステル共重合体、アイオノマー、アクリル酸エステル、メタアクリル酸エステル等が挙げられる。中でも、ポリトリメチレンテレフタレートやポリブチレンテレフタレートは結晶化速度が速いため、これらの樹脂を採用することでエンボスロールの形状を精度よく化粧シートに転写することができる。尚、本発明の化粧シートは、上述した樹脂やその共重合体を単独で又は2種以上を組み合わせ用いることにより形成することができる。
[Cosmetic sheet]
(Resin composition)
The decorative sheet of the present invention is made of a thermoplastic resin. The thermoplastic resin is not particularly limited, and a conventionally known material can be appropriately selected and used. Specifically, polyvinyl chloride, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyamide, polyethylene, polypropylene, polycarbonate, polyethylene naphthalate, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene -An acrylate copolymer, an ionomer, an acrylate, a methacrylate, etc. are mentioned. Among them, polytrimethylene terephthalate and polybutylene terephthalate have a high crystallization speed, and therefore, by using these resins, the shape of the embossing roll can be accurately transferred to a decorative sheet. In addition, the decorative sheet of this invention can be formed by using the above-mentioned resin or its copolymer alone or in combination of two or more.

また本発明の化粧シートは、着色されていても良い。この場合は、上記のような熱可塑性樹脂に対して着色剤(顔料又は染料)を添加して着色することができる。着色剤としては、例えば、二酸化チタン、カーボンブラック、酸化鉄等の無機顔料、フタロシアニンブルー等の有機顔料のほか、各種の染料も使用することができる。これらは、公知又は市販のものから1種又は2種以上を選ぶことができる。また、着色剤の添加量も、所望の色合い等に応じて適宜設定すれば良い。
尚、本発明の化粧シートは単層のシートであってもよいが、多層のシートであっても良い。化粧シートを3層構成とし、中間層のみに着色を施せば、化粧シートを製膜する際に、押出機に目ヤニが付着するといった問題を回避することができる。
Further, the decorative sheet of the present invention may be colored. In this case, a coloring agent (pigment or dye) can be added to the above-mentioned thermoplastic resin to be colored. As the colorant, for example, inorganic pigments such as titanium dioxide, carbon black and iron oxide, organic pigments such as phthalocyanine blue, and various dyes can be used. One or more of these can be selected from known or commercially available ones. Further, the amount of the coloring agent to be added may be appropriately set according to a desired color tone or the like.
The decorative sheet of the present invention may be a single-layer sheet, or may be a multilayer sheet. If the decorative sheet has a three-layer structure, and only the intermediate layer is colored, it is possible to avoid the problem that the mold is attached to the extruder when the decorative sheet is formed.

更に化粧シートには、必要に応じて、充填剤、艶消し剤、発泡剤、難燃剤、滑剤、帯電防止剤、酸化防止剤、紫外線吸収剤、光安定化剤等の各種の添加剤が含まれていても良い。
化粧シートの厚みは、最終製品の用途、使用方法等により適宜設定できるが、一般には20〜300μmが好ましく、特に70〜150μmが好ましい。
Furthermore, the decorative sheet contains various additives such as fillers, matting agents, foaming agents, flame retardants, lubricants, antistatic agents, antioxidants, ultraviolet absorbers, and light stabilizers as necessary. It may be.
The thickness of the decorative sheet can be appropriately set depending on the use of the final product, the method of use, and the like.

図1は本発明の化粧シートの一実施例を表す平面図(A)とそのa−a’断面図(B)、b−b’断面図(C)である。本発明の化粧シート1は、鏡面部2とエンボス加工部3とからなる。鏡面部2とエンボス加工部3との面積割合(%)は特に限定されないが、鏡面部:エンボス加工部=50〜95:50〜5であることが好ましく、特に70〜90:10〜30であることが好ましい。鏡面部の面積割合が50%を下回ると、化粧シートに所期の意匠性を付与することが難しい。   FIG. 1 is a plan view (A), an a-a 'cross-sectional view (B), and a b-b' cross-sectional view (C) showing an embodiment of the decorative sheet of the present invention. The decorative sheet 1 according to the present invention includes a mirror portion 2 and an embossed portion 3. The area ratio (%) of the mirror surface portion 2 and the embossed portion 3 is not particularly limited, but it is preferable that the mirror surface portion: embossed portion = 50 to 95:50 to 5, particularly 70 to 90:10 to 30. Preferably, there is. When the area ratio of the mirror surface portion is less than 50%, it is difficult to impart the desired design to the decorative sheet.

(鏡面部)
鏡面部2は、平滑で、光沢性に優れる部分で、化粧シートに重厚感や高級感を付与する。鏡面部2は算術平均粗さRa(JIS B0601 2013)が0.5μm以下であることが好ましい。鏡面部2の算術平均粗さが0.5μmを超えると、該部分の鏡面性が失われ、化粧シートに所期の意匠性を付与することができない。算術平均粗さRaは0.3μm以下が好ましく、特に0.1μm以下が好ましい。また算術平均粗さRaの下限値は特に限定されないが、0.01μm以上が好ましい。鏡面部2の算術平均粗さRaが0.01μmを下回ると、該鏡面部2に傷が入った際に、該傷が目立ち易い。
(Mirror surface)
The mirror surface portion 2 is a portion which is smooth and excellent in glossiness, and gives the decorative sheet a profound feeling and a high-grade feeling. The mirror surface portion 2 preferably has an arithmetic average roughness Ra (JIS B0601 2013) of 0.5 μm or less. When the arithmetic average roughness of the mirror surface portion 2 exceeds 0.5 μm, the mirror surface property of the portion is lost, and the decorative sheet cannot have the desired design. The arithmetic average roughness Ra is preferably 0.3 μm or less, and particularly preferably 0.1 μm or less. The lower limit of the arithmetic average roughness Ra is not particularly limited, but is preferably 0.01 μm or more. When the arithmetic average roughness Ra of the mirror surface portion 2 is less than 0.01 μm, when the mirror surface portion 2 is scratched, the scratches are easily noticeable.

(エンボス加工部)
エンボス加工部3は、鏡面部2よりも凹んだ凹部3aと、該凹部3a内に形成された複数の凸部3bとからなる。
本発明の化粧シートは、該凹部3aの幅d(凹)が0.1〜15mmである。該幅d(凹)が0.1mmを下回ると、凹部3a内に凸部3bを形成することが困難となり、エンボス加工部の柄立ちが悪くなる。また該幅d(凹)が15mmを超えると、化粧シート表面を手で撫でた際に凹凸を感じ易くなる。尚、該幅d(凹)は化粧シート内において一定でなくても良く、0.1〜15mmの範囲内において変化しても良い。
(Embossed part)
The embossed portion 3 includes a concave portion 3a recessed from the mirror surface portion 2 and a plurality of convex portions 3b formed in the concave portion 3a.
In the decorative sheet of the present invention, the width d (concave) of the concave portion 3a is 0.1 to 15 mm. If the width d (concave) is less than 0.1 mm, it becomes difficult to form the convex portion 3b in the concave portion 3a, and the pattern of the embossed portion becomes poor. On the other hand, when the width d (concave) exceeds 15 mm, irregularities are easily felt when the surface of the decorative sheet is stroked by hand. In addition, the width d (concave) may not be constant in the decorative sheet, and may vary within a range of 0.1 to 15 mm.

また本発明の化粧シートは、凹部3a内に複数の凸部3bを備えるが、該凸部3bの上面が鏡面部2の面(ツラ)を上回らない。凸部3bの上面が鏡面部2の面を上回ると、化粧シートを撫でた際に凹凸を感じる恐れがある。
凸部3bの上面と鏡面部2の面との差αは0以上、特に0μmを超えることが好ましく、更に10μm以下、特に5μmが好ましい。差αが10μmを上回ると、凸部3bが光を反射し難くなり、エンボス加工部の柄立ちが悪化する。また差αが0〜5μmの場合、凸部3bはフィルムに滑らかな手触りを与えることに寄与する。よって凹部の幅d(凹)が10mmを超える場合は、凸部3bの上面と鏡面2の面との差αが0〜5μmであることが好ましい。また差αが0μmでない(凸部3bの上面が鏡面部2の面と一致しない)場合、鏡面部2と凸部3bの光の反射の仕方が異なる為、化粧シート1は意匠性に優れる。
In addition, the decorative sheet of the present invention includes a plurality of convex portions 3b in the concave portion 3a, but the upper surface of the convex portion 3b does not exceed the surface of the mirror surface portion 2 (ivy). If the upper surface of the convex portion 3b exceeds the surface of the mirror surface portion 2, there is a possibility that irregularities may be felt when the decorative sheet is stroked.
The difference α between the upper surface of the convex portion 3b and the surface of the mirror surface portion 2 is preferably 0 or more, particularly more than 0 μm, more preferably 10 μm or less, particularly preferably 5 μm. If the difference α exceeds 10 μm, it becomes difficult for the convex portion 3b to reflect light, and the pattern of the embossed portion is deteriorated. When the difference α is 0 to 5 μm, the convex portions 3b contribute to giving a smooth touch to the film. Therefore, when the width d (concave) of the concave portion exceeds 10 mm, the difference α between the upper surface of the convex portion 3b and the surface of the mirror surface 2 is preferably 0 to 5 μm. If the difference α is not 0 μm (the upper surface of the convex portion 3b does not coincide with the surface of the mirror portion 2), the mirror sheet 2 and the convex portion 3b reflect light in different ways, so that the decorative sheet 1 is excellent in design.

尚、凸部3bの上面が平らでない場合、凸部3bの「上面」とは、「上端」に相当する。また鏡面部2の面が平らでない(なだらかにうねる)場合、「鏡面部2の面を上回らない」とは、「鏡面部の端縁2a、2a’を結ぶ線分を上回らない」に相当する。また、凸部3bが鏡面部2の面を極わずかに上回る場合であっても、触感として感じ取れない程度であれば、本発明の権利範囲に含まれる。   When the upper surface of the projection 3b is not flat, the “upper surface” of the projection 3b corresponds to the “upper end”. When the surface of the mirror portion 2 is not flat (smoothly undulating), “does not exceed the surface of the mirror portion 2” corresponds to “does not exceed the line connecting the edges 2a and 2a ′ of the mirror portion”. . Further, even if the convex portion 3b slightly exceeds the surface of the mirror surface portion 2, it is included in the scope of rights of the present invention as long as it is not felt as a tactile sensation.

また鏡面部2の面から凹部3aの底面までの距離も特に限定されないが、10〜30μmが好ましく、特に10〜20μmが好ましい。該距離が10μm未満では凸部3bが浅くなり、凹部3aと凸部3bの外観が近似し、柄立ちが悪化する。また該距離が30μmを超えると、耐汚染性が悪化する。   The distance from the surface of the mirror surface portion 2 to the bottom surface of the concave portion 3a is not particularly limited, but is preferably 10 to 30 μm, and particularly preferably 10 to 20 μm. If the distance is less than 10 μm, the projections 3b become shallow, the appearances of the depressions 3a and the projections 3b are approximated, and the patterning deteriorates. On the other hand, if the distance exceeds 30 μm, the stain resistance deteriorates.

また本発明の化粧シートは、図面に示されたものも、その他のものも、隣接する凸部との間隔が150μm、特に300μm以上であれば、耐汚染性に優れる。但し、後述するように、柄によっては隣接する凸部との間隔が150μmを下回るものであっても耐汚染性に優れる場合がある。また柄立ちを考慮すると、凸部の間隔は1000μm以下が好ましく、特に500μm以下が好ましい。
尚、エンボス加工部内で凸部の間隔が一定でない場合、化粧シートとして有効な範囲に現れる凸部の7割以上が上記範囲であることが好ましく、有効範囲における全ての凸部の間隔が上記範囲であることが望まれる。
In addition, the decorative sheet of the present invention, as shown in the drawings and others, is excellent in stain resistance if the distance between adjacent convex portions is 150 μm, especially 300 μm or more. However, as described later, depending on the pattern, even if the distance between the adjacent convex portions is less than 150 μm, the stain resistance may be excellent. In consideration of pattern formation, the interval between the convex portions is preferably 1000 μm or less, and particularly preferably 500 μm or less.
In addition, when the interval between the convex portions in the embossed portion is not constant, it is preferable that 70% or more of the convex portions appearing in the effective range as the decorative sheet is in the above range, and the interval between all the convex portions in the effective range is in the above range. It is desired that

図1に示す化粧シートは、凸部3bが、凹部3aの幅方向に延びる筋状である。該凸部3bの、隣接する凸部との間に形成される間隔d1(凸)は70〜1000μmであることが好ましく、特に220〜500μmであることが好ましい。間隔d1(凸)が220μm未満、特に70μm未満では、凸部3b間に汚れが詰まりやすくなる。また筋状の凸部3bの間隔d1(凸)が500μm、特に1000μmを超えると、エンボス加工部3における光を反射する面が狭くなる為、柄立ちが悪くなる。
尚、筋状の凸部3bは、図1に示すように、凹部3aの幅方向に延びるものでもよいが、凹部3aと略平行に伸びるものでもよく、凹部3aと一定の角度を形成するものであってもよい。いずれの場合でも間隔d1(凸)は70〜1000μmであることが好ましい。
The decorative sheet shown in FIG. 1 has a stripe shape in which the convex portions 3b extend in the width direction of the concave portions 3a. The interval d1 (convex) formed between the adjacent convex portions of the convex portion 3b is preferably 70 to 1000 μm, and particularly preferably 220 to 500 μm. When the interval d1 (convex) is less than 220 μm, particularly less than 70 μm, dirt is likely to be clogged between the convex portions 3b. When the interval d1 (convex) of the streaky projections 3b exceeds 500 μm, especially 1000 μm, the light reflecting surface of the embossed portion 3 becomes narrow, and the patterning becomes poor.
In addition, as shown in FIG. 1, the streak-like convex portion 3b may extend in the width direction of the concave portion 3a, or may extend substantially parallel to the concave portion 3a and form a fixed angle with the concave portion 3a. It may be. In any case, the interval d1 (convex) is preferably 70 to 1000 μm.

図2に示す化粧シート1は、凸部3bが格子状である。該格子の一辺d2(凸)−1、d2(凸)−2はいずれも150〜1000μmであることが好ましく、特に300〜500μmであることが好ましい。格子の間隔d2(凸)−1、d2(凸)−2が300μm未満、特に150μm未満では、凸部3b間に汚れが詰まりやすくなる。また格子の間隔d2(凸)−1、d2(凸)−2が500μm、特に1000μmを超えると、エンボス加工部の柄立ちが悪くなる。
尚、エンボス加工部3は、凹部の幅d(凹)−1、d(凹)−2がいずれも0.1〜15mmであれば、図2に示すように、化粧シート内に複数形成されていても良い。
In the decorative sheet 1 shown in FIG. 2, the convex portions 3b are in a lattice shape. Both sides d2 (convex) -1 and d2 (convex) -2 of the lattice are preferably 150 to 1000 μm, particularly preferably 300 to 500 μm. When the spacing d2 (convex) -1 and d2 (convex) -2 of the lattice is less than 300 μm, particularly less than 150 μm, dirt is likely to be clogged between the projections 3b. When the spacings d2 (convex) -1 and d2 (convex) -2 of the lattices are more than 500 μm, especially more than 1000 μm, the pattern of the embossed portion becomes poor.
In addition, if the width d (concave) -1 and d (concave) -2 of the concave portions are both 0.1 to 15 mm, a plurality of embossed portions 3 are formed in the decorative sheet as shown in FIG. May be.

図3に示す化粧シートは、凸部3bが突起状である。凸部3bの、隣接する凸部との間隔d3(凸)−1、d3(凸)−2は、耐汚染性と柄立ちを考慮すると、いずれも30〜1000μmであることが好ましく、特に100〜500μmであることが好ましい。
化粧シート1が複数のエンボス加工部3を備える場合、各エンボス加工部は幅d(凹)−1、d(凹)−2がいずれも0.1〜15mmであれば、概略平行でなくても良く、例えば図3に示すように十字状に配されていても良い。
In the decorative sheet illustrated in FIG. 3, the protrusions 3b are in a protruding shape. The distance d3 (convex) -1 and d3 (convex) -2 of the convex portion 3b between adjacent convex portions is preferably 30 to 1000 μm, particularly 100, in consideration of stain resistance and patterning. It is preferably about 500 μm.
When the decorative sheet 1 includes a plurality of embossed portions 3, each embossed portion is not substantially parallel if the width d (concave) -1 and d (concave) -2 are both 0.1 to 15 mm. It may be arranged in a cross shape as shown in FIG. 3, for example.

[化粧シートの製造]
本発明の化粧シートの製造方法は、特に限定されるものではないが、例えば、Tダイ−キャストエンボス法を採用することができる。具体的には、まず化粧シート用の樹脂組成物を押出機に投入し、これを溶融させてTダイへ供給し、次いでTダイから溶融状態の樹脂組成物を流下させ、キャスティングロールを兼ねるエンボスロールによって引き取ると同時にエンボス加工を付与する方法を採用できる。
[Manufacture of decorative sheets]
Although the method for producing the decorative sheet of the present invention is not particularly limited, for example, a T-die-cast embossing method can be adopted. Specifically, first, a resin composition for a decorative sheet is put into an extruder, which is melted and supplied to a T-die. Then, the resin composition in a molten state is flowed down from the T-die, and embossed as a casting roll. A method in which embossing is applied at the same time as taking up by a roll can be adopted.

[化粧金属板]
本発明の化粧金属板は、金属板の表面に上述した化粧シートを貼合することにより得られる。金属板は、従来、化粧金属板に用いられてきたものを特に制限なく使用することができ、例えば、冷延鋼板、メッキ鋼板、ティンフリースチール、ステンレス鋼板等の各種鋼板やアルミニウム系合金板、ニッケル系合金板、チタン系合金板、マグネシウム系合金板等を使用できる。化粧シートを金属板に貼合する方法は特に限定されないが、熱硬化型接着剤による貼合が一般的である。また金属板を予め加熱しておき、接着剤を解すことなく、貼合する、いわゆる熱ラミネート法を採用することもできる。
また化粧シートと金属板の間に、接着剤を介してバッカー材をドライラミネート方式で積層してもよい。
[Decorative metal plate]
The decorative metal sheet of the present invention is obtained by bonding the above-described decorative sheet to the surface of the metal sheet. As the metal plate, those conventionally used for decorative metal plates can be used without any particular limitation, for example, various steel plates such as cold-rolled steel plate, plated steel plate, tin-free steel, stainless steel plate, and aluminum-based alloy plates, A nickel-based alloy plate, a titanium-based alloy plate, a magnesium-based alloy plate, or the like can be used. The method of bonding the decorative sheet to the metal plate is not particularly limited, but bonding with a thermosetting adhesive is common. In addition, a so-called heat lamination method in which a metal plate is heated in advance and bonded without releasing an adhesive can be employed.
In addition, a backer material may be laminated between the decorative sheet and the metal plate by a dry laminating method via an adhesive.

次に、本発明を実施例により詳細に説明するが、本発明はこれらにより何ら限定されるものではない。本発明における評価方法は以下の通りである。
[平滑性]
化粧シートの表面を手で撫でる。凹凸を感じたものは×、感じなかったものは○と評価する。
[耐汚染性]
初めにカーボンブラックを含む染色液を化粧シート表面に滴下し、これを化粧シート表面に押し広げる。次いで、洗浄成分を含む布帛にて、化粧シート表面の染色液を拭き取る。化粧シートのエンボス加工部の50%以上の面積が黒く染まったものは×、エンボス加工部の10%以上50%未満の面積が黒く染まったものは△、染色液が残った面積が10%未満であったものは○と評価する。
Next, the present invention will be described in detail with reference to examples, but the present invention is not limited thereto. The evaluation method in the present invention is as follows.
[Smoothness]
Stroking the surface of the decorative sheet by hand. Those that felt unevenness were evaluated as x, and those that did not feel it were evaluated as ○.
[Stain resistance]
First, a dyeing solution containing carbon black is dropped on the surface of the decorative sheet, and is spread on the surface of the decorative sheet. Next, the stain liquid on the surface of the decorative sheet is wiped off with a cloth containing a cleaning component. × when the area of 50% or more of the embossed portion of the decorative sheet was dyed black, Δ when the area of 10% or more and less than 50% of the embossed portion was black, and less than 10% of the area where the stain remained. Is evaluated as ○.

[実施例1]
ポリブチレンテレフタレートを用い、Tダイ−キャストエンボス法にて、100μmの化粧シートを製造した。エンボス加工部は、幅0.5〜0.8mmの凹部と、該凹部間に形成された複数の凸部とからなり、凸部は図1に示すような、凹部の幅方向に延びる筋状とし、隣接する凸部との間に形成される間隔(図1におけるd1(凸)に相当)は225μmとした。また凸部の上面と鏡面部の面との差(α)は0μmとした。
[実施例2]
隣接する凸部との間に形成される間隔(図1におけるd1(凸)に相当)を75μmとした以外は、実施例1と同様にして化粧シートを製造した。
[Example 1]
Using polybutylene terephthalate, a 100 μm decorative sheet was produced by a T-die-cast embossing method. The embossed portion includes a concave portion having a width of 0.5 to 0.8 mm and a plurality of convex portions formed between the concave portions, and the convex portion has a stripe shape extending in the width direction of the concave portion as shown in FIG. The interval (corresponding to d1 (convex) in FIG. 1) formed between adjacent convex portions was 225 μm. The difference (α) between the upper surface of the convex portion and the surface of the mirror portion was 0 μm.
[Example 2]
A decorative sheet was manufactured in the same manner as in Example 1 except that the interval (corresponding to d1 (convex) in FIG. 1) formed between adjacent convex portions was 75 μm.

[実施例3〜5]
ポリブチレンテレフタレートを用い、Tダイ−キャストエンボス法にて、100μmの化粧シートを製造した。凸部は図2に示すような格子状とした。凹部の幅、格子の一辺の長さ(図2d2(凸)−1、d2(凸)−2に相当)は、表1に記すとおりである。
[実施例6、7]
ポリブチレンテレフタレートを用い、Tダイ−キャストエンボス法にて、100μmの化粧シートを製造した。凸部は図3に示すような突起状とした。凹部の幅、隣接する凸部との間に形成される間隔(図3d3(凸)−1、d3(凸)−2に相当)は、表1に記すとおりである。
[Examples 3 to 5]
Using polybutylene terephthalate, a 100 μm decorative sheet was produced by a T-die-cast embossing method. The protrusions were formed in a lattice as shown in FIG. The width of the concave portion and the length of one side of the lattice (corresponding to d2 (convex) -1 and d2 (convex) -2 in FIG. 2) are as shown in Table 1.
[Examples 6 and 7]
Using polybutylene terephthalate, a 100 μm decorative sheet was produced by a T-die-cast embossing method. The projections were formed as projections as shown in FIG. Table 1 shows the width of the concave portion and the distance between the adjacent convex portion (corresponding to d3 (convex) -1 and d3 (convex) -2 in FIG. 3).

[比較例1]
図12に記すような凹部のない化粧シートを製造した。エンボス加工部を複数の凸部から形成した以外は、実施例1と同様にして化粧シートを製造した。尚、各凸部の間隔は35μmであった。
[Comparative Example 1]
A decorative sheet having no concave portions as shown in FIG. 12 was manufactured. A decorative sheet was manufactured in the same manner as in Example 1 except that the embossed portion was formed from a plurality of convex portions. In addition, the interval between each convex portion was 35 μm.

実施例1乃至7、比較例1の化粧シートの平滑性と耐汚染性を評した。結果を表1に併せて記す。実施例1乃至7の化粧シートは、エンボス加工部が幅0.1〜15mmの凹部と、該凹部内にある複数の凸部からなり、手で触ったときに凹凸を感じることがなかった。比較例1の化粧シートは、エンボス加工部が鏡面部よりも突出した凸部から形成されており、手で触ったときに凹凸を感じた。また実施例1、3、6の化粧シートは、凸部の間隔が十分に広く、耐汚染性に優れるものであった。   The smoothness and stain resistance of the decorative sheets of Examples 1 to 7 and Comparative Example 1 were evaluated. The results are shown in Table 1. In the decorative sheets of Examples 1 to 7, the embossed portion was composed of a concave portion having a width of 0.1 to 15 mm and a plurality of convex portions in the concave portion, and did not feel unevenness when touched by hand. In the decorative sheet of Comparative Example 1, the embossed portion was formed from a convex portion that protruded from the mirror surface portion, and when touching with a hand, irregularities were felt. Further, the decorative sheets of Examples 1, 3, and 6 had sufficiently large intervals between the convex portions, and were excellent in stain resistance.

Figure 2020015192
Figure 2020015192

実施例1の化粧シートの表面形状を、高い位置にあるものが薄い色、低い位置にあるものが濃い色となるように画像処理したものを図4に記す。同様に、実施例2〜比較例1の表面形状の画像処理されたものを図5〜図11に記す。
また、実施例1乃至7を比較すると、隣接する凸部との間隔が一定の場合、突起状の凸部が最も耐汚染性に優れ、次いで筋状の凸部が優れ、格子状の凸部は最も汚染し易いことが推察される。これは、凹部に浸入した染料のかき出し易さに起因するものと推察する。
FIG. 4 shows the surface shape of the decorative sheet of Example 1 in which image processing is performed such that a high position has a light color and a low position has a dark color. Similarly, image-processed surface shapes of Examples 2 to Comparative Example 1 are shown in FIGS.
Also, when comparing Examples 1 to 7, when the distance between adjacent convex portions is constant, the convex convex portions are most excellent in stain resistance, then the stripe convex portions are excellent, and the lattice convex portions are excellent. Is most likely to be contaminated. This is presumed to be due to the ease of scraping out the dye that has entered the recess.

1 化粧シート
2 鏡面部
2a、2a’ 鏡面部の端縁
3 エンボス加工部
3a 凹部
3b 凸部
DESCRIPTION OF SYMBOLS 1 Decorative sheet 2 Mirror surface part 2a, 2a 'Edge of mirror surface part 3 Embossed part 3a Concave part 3b Convex part

Claims (8)

鏡面部とエンボス加工部とを備える化粧シートにおいて、
前記エンボス加工部が、幅0.1〜15mmの凹部と、該凹部内にある複数の凸部とからなり、該凸部の上面が鏡面部の面を上回らないことを特徴とする化粧シート。
In a decorative sheet having a mirror portion and an embossed portion,
A decorative sheet, wherein the embossed portion includes a concave portion having a width of 0.1 to 15 mm and a plurality of convex portions in the concave portion, and the upper surface of the convex portion does not exceed the surface of the mirror portion.
前記凸部の上面と前記鏡面部の面との差が0〜10μmであることを特徴とする請求項1記載の化粧シート。   The decorative sheet according to claim 1, wherein a difference between an upper surface of the convex portion and a surface of the mirror surface portion is 0 to 10 m. 前記凸部の上面と前記鏡面部の面との差が0μmを超え、10μm以下であることを特徴とする請求項1又は2記載の化粧シート。   The decorative sheet according to claim 1, wherein a difference between an upper surface of the convex portion and a surface of the mirror portion is more than 0 μm and 10 μm or less. 前記凸部が略筋状であり、隣接する凸部との間に形成される間隔が70〜1000μmであることを特徴とする請求項1乃至3のいずれか一項に記載の化粧シート。   The decorative sheet according to any one of claims 1 to 3, wherein the convex portion has a substantially streak shape, and an interval formed between the convex portion and the adjacent convex portion is 70 to 1000 m. 前記凸部が略格子状であり、格子の一辺の長さが150〜1000μmであることを特徴とする請求項1乃至3のいずれか一項に記載の化粧シート。   The decorative sheet according to any one of claims 1 to 3, wherein the convex portion has a substantially lattice shape, and one side of the lattice has a length of 150 to 1000 m. 前記凸部が突起状であり、隣接する凸部との間に形成される間隔が30〜1000μmであることを特徴とする請求項1乃至3のいずれか一項に記載の化粧シート。   The decorative sheet according to any one of claims 1 to 3, wherein the convex portion has a protruding shape, and an interval formed between adjacent convex portions is 30 to 1000 m. 前記鏡面部の面積が、フィルム全体の面積の50%を超えることを特徴とする請求項1乃至6のいずれか1項に記載の化粧シート。   The decorative sheet according to any one of claims 1 to 6, wherein the area of the mirror surface portion exceeds 50% of the area of the entire film. 金属板に請求項1乃至7のいずれか1項に記載の化粧シートを貼合したことを特徴とする化粧金属板。

A decorative metal plate obtained by bonding the decorative sheet according to any one of claims 1 to 7 to a metal plate.

JP2018138345A 2018-07-24 2018-07-24 Decorative sheet and decorative metal plate using the sheet Active JP7142508B2 (en)

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WO2024024790A1 (en) * 2022-07-29 2024-02-01 恵和株式会社 Sheet for structure

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JP2010042575A (en) * 2008-08-12 2010-02-25 Okura Ind Co Ltd Decorative metal sheet and method for manufacturing it
JP2016196102A (en) * 2015-04-02 2016-11-24 共和レザー株式会社 Synthetic resin skin material and method for producing the same

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JPH07144364A (en) * 1993-11-22 1995-06-06 Dainippon Printing Co Ltd Embossing plate and production thereof
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JPS5736607A (en) * 1980-08-14 1982-02-27 Matsushita Electric Works Ltd Manufacture of die
JP2006212909A (en) * 2005-02-03 2006-08-17 Toppan Printing Co Ltd Mirror surface-embossing plate and mirror surface-embossed decorative sheet
JP2010042575A (en) * 2008-08-12 2010-02-25 Okura Ind Co Ltd Decorative metal sheet and method for manufacturing it
JP2016196102A (en) * 2015-04-02 2016-11-24 共和レザー株式会社 Synthetic resin skin material and method for producing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024024790A1 (en) * 2022-07-29 2024-02-01 恵和株式会社 Sheet for structure

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