JP5050295B2 - wallpaper - Google Patents

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Publication number
JP5050295B2
JP5050295B2 JP2000383406A JP2000383406A JP5050295B2 JP 5050295 B2 JP5050295 B2 JP 5050295B2 JP 2000383406 A JP2000383406 A JP 2000383406A JP 2000383406 A JP2000383406 A JP 2000383406A JP 5050295 B2 JP5050295 B2 JP 5050295B2
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Japan
Prior art keywords
layer
resin
paper
wallpaper
fiber
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JP2000383406A
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JP2002178480A (en
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義昭 根津
さとみ 貞末
良明 柿沼
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、住宅等の壁面に貼着する化粧シートに関するものである。
【0002】
【従来の技術】
壁紙等の建築内装材としては、火災に対する安全性の面から、難燃性が要求され、建築基準法で一定の難燃性が義務づけられている場合が多い。また、建築内装材には、室内の居住空間としての快適性を高める為に高い意匠性が求められ、特に立体的な意匠を持たせる為には、柔軟性のみでなく高度に発泡させ得る材料が有利となる。この様な要求に応え得る材料として、従来、不燃紙、難燃紙の上に塩化ビニル樹脂からなる樹脂層を設けたものが広く用いられてきた。しかし、塩化ビニル樹脂等のハロゲンを含む樹脂組成物は火災時や焼却時に有害なガスを発生するという欠点を有している。
【0003】
また、塩化ビニル樹脂に代えてオレフィン系樹脂、アクリル系樹脂からなる樹脂層を不燃紙、難燃紙の上に設けた壁紙等の化粧シートが開発されている。しかしながら、これらオレフィン系樹脂、アクリル系樹脂の場合、石油化学系炭化水素化合物からなるため、燃焼時に二酸化炭素ガスの排出量が多く、地球温暖化防止の環境保護面から使用を控える必要がある。
【0004】
また、不燃紙、難燃紙の上に印刷した薄葉紙、チタン紙、又はセルロース系不織布等を積層したものが検討されているが、これらの積層物は通気性があるためオープンタイムが短いという問題があった。
【0005】
【発明が解決しようとする課題】
そこで本発明は、上記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、火災時や燃焼時に塩化水素ガス等の有毒なガスを発生することなく、燃焼時に二酸化炭素ガスの排出量が少なく地球に優しい、またオープンタイムが長く施工性に優れた壁紙を安定して提供することである。
【0006】
【課題を解決するための手段】
上記目的を達成するための本発明の解決手段は、紙質系基材層上に、セルロース(繊維素)を熱可塑性に改質した樹脂からなる繊維素系樹脂層を積層し、該繊維素系樹脂層上に装飾層が設けられた構成からなり、前記繊維素系樹脂層が酢酸繊維素樹脂からなり、難燃剤、無機充填剤、可塑剤を含み、前記装飾層から前記紙質系基材層にかけて凹凸模様が施されていることを特徴とするものである。このような構成とすることにより、火災時や燃焼時に塩化水素ガス等の有毒なガスを発生することもなく、また石油化学系炭化水素化合物を用いていないので、燃焼時の二酸化炭素ガスの排出量が少なく地球環境に優しい壁紙を得ることができる。
【0007】
さらに、前記装飾層から前記紙質系基材層にかけて凹凸模様が施されていることで様々な形状の凹凸模様を有することとなり、意匠性に優れた壁紙とすることができる。
【0008】
また、前記繊維素系樹脂層が酢酸繊維素からなることを特徴とするものである。そうすることで、耐侯性に優れ、帯電性が小さいのでほこりがつきにくく、また、耐衝撃性が良好な壁紙とすることができる。
また、繊維素系樹脂層が難燃剤、無機充填剤、可塑剤を含むことを特徴とするものである。このようにすることにより、難燃性を保持するとともに、伸張性、柔軟性が向上し、施工性に優れた壁紙を得ることができる。
【0009】
また、請求項2に記載の発明は、請求項1に記載の壁紙において、前記繊維素系樹脂層が、酢酸繊維素樹脂100重量部に対して可塑剤が10〜20重量部、無機充填剤が20〜100重量部を含むことを特徴とするものである。
【0010】
【発明の実施の形態】
以下、本発明の具体的な実施形態を図面を参照しながら説明する。
図1は本発明の壁紙の実施形態の層構成図であり、1は壁紙、2は紙質系基材層、3は繊維素系樹脂層、4は装飾層、5は凹凸模様をそれぞれ表している。
【0011】
図1は本発明の壁紙1の実施形態の層構成図を示したものであり、本発明の壁紙1は、紙質系基材層2上に、Tダイ押出機でシリコーン系難燃剤、無機充填剤、可塑剤を含む繊維素系樹脂を加熱溶融押出しすることにより繊維素系樹脂層3を形成し、該繊維素系樹脂層3上に装飾層4を設けたあと、加熱し、前記装飾層4側から前記紙質系基材層2にかけて凹凸模様5を施したものである。このように紙質系基材層2上に設ける樹脂層を酢酸セルロース等の繊維素系樹脂層とすることにより、燃焼時、有毒ガスが発生することがなく、また、二酸化炭素ガスの排出量が少なくなり地球環境に優しい壁紙とすることができる。
【0012】
次に、本発明の壁紙1について更に詳しく説明する。
本発明に用いる紙質基材層2としては、紙、難燃紙、不燃紙、有機繊維又は無機繊維の織布、不織布が用いられるが、加熱発泡させることを考慮してセルロースやポリエステル等の耐熱性のある素材が好ましい。また、施工後の火災等による燃焼を考慮して、スルファニル酸グアナジンや燐酸グアナジンなどの水溶性難燃剤を含浸させたパルプ主体の難燃紙、あるいは、炭酸カルシウム、水酸化アルミニウム、水酸化マグネシウムなどの無機質材を混抄した無機質紙などの通常壁紙用裏打紙といわれているものを用いることができ、その坪量としては30〜120g/m2 が好ましい。
【0013】
次に、繊維素系樹脂層3について説明する。本発明の壁紙1の溶融押出される繊維素系樹脂としては、セルロース(繊維素)を熱可塑性に改質した材料で、セルロースユニットの3個の水酸基を酸によってエステル化されセルロースエステルとしたものであり、セルロースエステルのエステル基としては、炭素数2〜8の脂肪酸基(例えばアセチル基、プロピオニル基、ブチリオ基など)が好ましく、酢酸繊維素系樹脂、プロピオン酸繊維素系樹脂、酢酪酸繊維素系樹脂が好ましく用いられ、中でもリンターまたは精製パルプに無水酢酸、氷酢酸、硫酸を作用させて製造される、この3個の水酸基を全部アセチル基で置換したトリアセテート(三酢酸繊維素)樹脂が好ましく、適当な可塑剤を加えて用いられる。物性的には、耐侯性にすぐれ、帯電性が小さいのでほこりがつきにくく、また、耐衝撃性が良好な壁紙となる。
【0014】
次に、繊維素系樹脂層3に用いられる可塑剤としては、ジエチルフタレート、トリフェニルフォスフェート、トリクレジルフォスフェート、トリアセチレン、トルエンエチルスルフォンアマイド、エチルフタリールエチルグリコレート(EPEG)、ブチルフタリールブチルグリコレート、メチルフタリールエチルグリコレートなどが挙げられ、その添加量としては、酢酸繊維素樹脂の10〜20%程度が好ましく添加量の増加に伴って流動温度は低下し、伸張性、柔軟性が良好となる。
【0015】
次に、本発明の繊維素系樹脂層3に用いる難燃剤としては、シリコーン系、リン酸系、無機系金属水酸化物等が考えられ、環境に優しく、難燃剤を添加することにより少量で有効的に難燃性を付与することができるものが好ましく、シリコーン系難燃剤が極めて有効である、特に高分子量のシリコーン系難燃剤を用いると樹脂溶融時(樹脂発泡時)の溶融張力が安定し好ましいものであり、具体的には、ポリジメチルシロキサン単体、ないし、エポキシ基あるいはメタクリレート基を有するポリジメチルシロキサン誘導体と二酸化珪素との混合物が好ましい。また、シリコーン系難燃剤を100%用いることにより、難燃層を形成する樹脂100重量部に対して30重量部で十分に難燃性を付与することができるが、シリコーン系難燃剤は高価であるために、シリコーン系難燃剤を100%用いることはできず、他の環境に優しい難燃剤と併用せざるを得ない。このシリコーン系難燃剤と併用する難燃剤としては、無機系難燃剤、具体的にはマイカ、水酸化アルミニウム、水酸化マグネシウム、炭酸カルシウム等の無機物の1種ないし2種以上の混合物からなるものを併用するのが上記理由から適当である。
【0016】
次に、無機充填剤としては、樹脂分より比較的安価なためコストダウン目的、または単位量当たりの有機分を減らすことによる燃焼カロリーの低減を図る目的で添加され、水酸化アルミニウム、水酸化マグネシウム、炭酸カルシウム等の既知のものが用いられる。添加量としては樹脂100重量部に対し20〜100重量部程度添加する。また、二酸化チタン、酸化鉄等の無機顔料等が着色剤として用いられ、特に、本発明において黄、灰、白などの薄い色を鮮明にだす場合、二酸化チタン顔料が有効である。二酸化チタン顔料の添加量としては、酢酸セルロース樹脂100重量部に対して10〜20重量部が好ましい。これら、無機質成分は樹脂層の難燃性、製膜性、意匠性に関係し、添加量としては樹脂100重量部に対して、50〜80重量部が好ましい。
【0017】
次に、本発明の装飾層4は、一般的にはグラビア印刷、オフセット印刷、シルクスクリーン印刷等周知の印刷法によりインキにて形成することができる。印刷絵柄としては、木目柄、石目柄、布目柄、皮紋柄、幾何学図形、文字、記号、あるいは、全面ベタ等の印刷絵柄がある。使用するインキとしては、ビヒクルとして、ポリエステル系樹脂、イソシアネートとポリオールからなるポリウレタン系樹脂、アクリル系樹脂、酢酸ビニル樹脂、セルロース系樹脂、ポリアミド系樹脂等を1種ないし2種以上混合して用い、これに顔料、溶剤、各種補助剤等を加えてインキ化したものを用いることができる。また、繊維素系樹脂層3と装飾層4との間にプライマー層を設けて密着性を向上させてもよい。
【0018】
また、壁紙1の凹凸模様5面を希望する艶に調整を行うため、装飾層4として艶調節層を設けても良い。艶調節の方法はシリカ等のマット剤を混練したインキを表面に塗布する方法が主に用いられる。用いられるインキのバインダーとしては、アクリル系樹脂、ポリウレタン系樹脂、ポリエステル系樹脂、エポキシ樹脂、また、これらの共重合体樹脂の透明または半透明な樹脂が使用される。
【0019】
また、凹凸模様5の形成は、周知の枚葉、あるいは、輪転式のエンボス機を用いて積層体が加熱された状態にあるときに、紙質基材層2上の最も外側の層からエンボス版で凹凸を施して後に冷却することにより、前記装飾層4から前記紙質系基材層2にかけて形成したものである。この凹凸模様5の形状としては、木目板導管溝、石板表面凹凸、布表面テクスチュア、梨地、砂目、ヘアライン、万線条溝等がある。
【0020】
次に、本発明の壁紙の製造方法について、上記した実施形態の壁紙1を例に挙げて説明する。まず、裏打紙からなる紙質基材層2上に、シリコーン系難燃剤、二酸化チタンおよび無機充填剤からなる無機質成分を含む、繊維素系樹脂からなる混合樹脂物を加熱溶融押出しして積層体を作製し、該積層体の表出する繊維素系樹脂層3面にコロナ放電処理を施すと共に、該コロナ放電処理を施した面にグラビア印刷にて絵柄印刷等の装飾層4を形成して後に、このものを加熱炉で前記繊維素系樹脂層3を加熱させると共に、前記装飾層4側から前記紙質系基材層2にかけて、エンボス版にて凹凸模様5を形成後、冷却することにより、壁紙1を得ることができる。
【0021】
【実施例】
実施例1
坪量70g/m2 の難燃性裏打紙(興人製、WK870D)上に、下記に示す配合の樹脂層形成組成物をTダイ押出し法にて樹脂厚みが100μmになるようにして、積層体を作成した。

Figure 0005050295
次に積層体の樹脂層面にコロナ放電処理を施して後に、該コロナ放電処理面にアクリル系樹脂からなる水性インキ(ザ・インクテック(株)製、オーデ)でグラビア印刷して砂目柄模様の絵柄層を設けた。次いでこのものを加熱炉(220℃で60秒)で加熱させると共に、前記印刷層側から砂目柄模様のエンボス版にてエンボス加工を行い凹凸模様を形成した本発明の壁紙を得た。
【0022】
〔樹脂層形成組成物の配合 単位重量部〕
樹脂 酢酸繊維素系樹脂 100
充填剤 水酸化アルミニウム 30
顔料 二酸化チタン 15
難燃剤 シリコーン系 2
可塑剤 EPEG 10
【0023】
比較例1
実施例1の紙質系基材の上に30g/m2 のセルロース系不織布(旭化成工業(株)製、ベンリーゼTS327)をラミネートし、そのうえからグラビア印刷して砂目柄模様の絵柄層を設けた。次いでこのものを加熱炉(220℃で60秒)で加熱させると共に、前記印刷層側から砂目柄模様のエンボス版にてエンボス加工を行い凹凸模様を形成した壁紙を得た。
【0024】
比較例2
実施例1の紙質系基材の上に28g/m2 の薄紙(高崎三興(株)製、SNP−28)をラミネートし、そのうえからグラビア印刷して砂目柄模様の絵柄層を設けた。次いでこのものを加熱炉(220℃で60秒)で加熱させると共に、前記印刷層側から砂目柄模様のエンボス版にてエンボス加工を行い凹凸模様を形成した壁紙を得た。
【0025】
比較例3
実施例1の紙質系基材の上に、下記に示す配合の樹脂層形成組成物をTダイ押出し法にて樹脂厚みが100μmになるようにして、積層体を作成した以外実施例1と同様にして壁紙を得た。
〔樹脂層形成組成物の配合 単位重量部〕
樹脂 エチレン−酢酸ビニル共重合体樹脂 100
充填剤 水酸化アルミニウム 30
顔料 二酸化チタン 15
発泡剤 ADCA 6
難燃剤 シリコーン系 5
【0026】
上記で作製した実施例1及び比較例1〜3の壁紙について、各種試験を行い、その結果を表1に纏めて示した。
【0027】
Figure 0005050295
【0028】
Figure 0005050295
【0029】
表1の結果からも明らかなように、紙質系基材層上に、酢酸繊維素系樹脂を溶融コーティングにて積層したものが、燃焼性、オープンタイム、エンボス性、環境性(CO2 排出濃度)ともに良好な成績を示している。
【0030】
【発明の効果】
以上説明した如く、本発明の壁紙は、紙質系基材層上に、難燃剤、無機充填剤、可塑剤を含む酢酸繊維素樹脂からなる繊維素系樹脂層と装飾層を順次設けた構成とすることにより、火災時や燃焼時に塩化水素ガス等の有毒なガスを発生することもなく、また石油化学系炭化水素化合物を用いていないので、燃焼時の二酸化炭素ガスの排出量が少なく地球環境に優しい壁紙を得ることができる。
そして、表面樹脂層が通気性が少ないため、オープンタイムが長く施工性に優れた壁紙が得られる。
【図面の簡単な説明】
【図1】本発明の壁紙の実施形態の層構成図である。
【符号の説明】
1 壁紙
2 紙質系基材層
3 繊維素系樹脂層
4 装飾層
5 凹凸模様[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a decorative sheet that is attached to a wall surface of a house or the like.
[0002]
[Prior art]
Building interior materials such as wallpaper are required to be flame retardant from the standpoint of fire safety, and certain flame retardant properties are often required by the Building Standard Law. In addition, architectural interior materials are required to have high designability in order to enhance comfort as an indoor living space. In particular, in order to have a three-dimensional design, a material that can be highly foamed as well as flexible. Is advantageous. As a material that can meet such a demand, conventionally, a non-combustible paper or a flame retardant paper provided with a resin layer made of a vinyl chloride resin has been widely used. However, a resin composition containing a halogen such as a vinyl chloride resin has a drawback of generating a harmful gas during a fire or incineration.
[0003]
In addition, decorative sheets such as wallpaper in which a resin layer made of an olefin resin or an acrylic resin is provided on noncombustible paper or flame retardant paper instead of vinyl chloride resin have been developed. However, since these olefin resins and acrylic resins are composed of petrochemical hydrocarbon compounds, they emit a large amount of carbon dioxide gas at the time of combustion, and it is necessary to refrain from using them in terms of environmental protection to prevent global warming.
[0004]
In addition, a laminate of non-combustible paper, thin paper printed on flame retardant paper, titanium paper, or cellulose-based non-woven fabric has been studied. However, these laminates have a problem of short open time due to air permeability. was there.
[0005]
[Problems to be solved by the invention]
Therefore, the present invention has been made in view of the above problems, and its object is to emit carbon dioxide gas at the time of combustion without generating toxic gas such as hydrogen chloride gas at the time of fire or combustion. The aim is to provide a stable and small amount of earth-friendly wallpaper with a long open time and excellent workability.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the solution means of the present invention comprises: laminating a fiber-based resin layer made of a resin obtained by modifying cellulose (fibrin) into thermoplasticity on a paper-based substrate layer; The decorative layer is provided on the resin layer, the fibrous base resin layer is made of an acetate fibrous base resin, includes a flame retardant, an inorganic filler, and a plasticizer, and the paper-based base material layer includes the decorative layer. It is characterized by being provided with a concavo-convex pattern. By adopting such a configuration, no toxic gas such as hydrogen chloride gas is generated during a fire or combustion, and since no petrochemical hydrocarbon compound is used, carbon dioxide gas is emitted during combustion. A small amount of wallpaper that is friendly to the global environment can be obtained.
[0007]
Furthermore, since the uneven pattern is given from the decoration layer to the paper-based base material layer, it has uneven patterns of various shapes, and a wallpaper having excellent design can be obtained.
[0008]
Further, the fiber-based resin layer is made of acetic acid fiber. By doing so, it is possible to obtain a wallpaper having excellent weather resistance and low chargeability, so that it is difficult to be dusty and has good impact resistance.
In addition, the fiber-based resin layer includes a flame retardant, an inorganic filler, and a plasticizer. By doing in this way, while maintaining a flame retardance, the extensibility and a softness | flexibility improve and the wallpaper excellent in workability can be obtained.
[0009]
The invention according to claim 2 is the wallpaper according to claim 1, wherein the fibrous resin layer is composed of 10 to 20 parts by weight of a plasticizer and 100% by weight of an inorganic filler. Includes 20 to 100 parts by weight .
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a layer configuration diagram of an embodiment of the wallpaper of the present invention, where 1 is wallpaper, 2 is a paper-based base material layer, 3 is a fiber-based resin layer, 4 is a decorative layer, and 5 is an uneven pattern. Yes.
[0011]
FIG. 1 is a diagram showing the layer structure of an embodiment of the wallpaper 1 of the present invention. The wallpaper 1 of the present invention is formed on a paper-based substrate layer 2 with a silicone flame retardant and inorganic filling using a T-die extruder. The fiber-based resin layer 3 is formed by heating and extruding a fiber-based resin containing an agent and a plasticizer, and the decorative layer 4 is provided on the fiber-based resin layer 3 and then heated, and the decorative layer is heated. An uneven pattern 5 is applied from the 4 side to the paper-based base material layer 2. Thus, by making the resin layer provided on the paper-based base material layer 2 into a fiber-based resin layer such as cellulose acetate, no toxic gas is generated during combustion, and the amount of carbon dioxide gas discharged is reduced. The wallpaper can be made less environmentally friendly.
[0012]
Next, the wallpaper 1 of the present invention will be described in more detail.
As the paper-based substrate layer 2 used in the present invention, paper, flame retardant paper, non-combustible paper, organic fiber or inorganic fiber woven fabric, and non-woven fabric are used. A material having a characteristic is preferable. In addition, in consideration of combustion due to fire after construction, etc., pulp-based flame retardant paper impregnated with a water-soluble flame retardant such as guanazine sulfanilate or guanazine phosphate, or calcium carbonate, aluminum hydroxide, magnesium hydroxide, etc. What is said to be a normal backing paper for wallpaper, such as an inorganic paper mixed with the above inorganic material, can be used, and its basis weight is preferably 30 to 120 g / m 2 .
[0013]
Next, the fiber-based resin layer 3 will be described. As the fiber-based resin to be melt-extruded for wallpaper 1 of the present invention, cellulose (fibrin) is a material modified with thermoplasticity, and the three hydroxyl groups of the cellulose unit are esterified with an acid to form a cellulose ester. As the ester group of the cellulose ester, a fatty acid group having 2 to 8 carbon atoms (for example, acetyl group, propionyl group, butyrio group, etc.) is preferable, and a cellulose acetate resin, a propionate fiber resin, and an acetic acid butyrate fiber. An elemental resin is preferably used. Among them, a triacetate (triacetic acid fibrin) resin produced by reacting acetic anhydride, glacial acetic acid, and sulfuric acid on linter or refined pulp and having all three hydroxyl groups substituted with acetyl groups Preferably, an appropriate plasticizer is added. In terms of physical properties, it has excellent weather resistance, and since the charging property is small, it is difficult to be dusty, and the wallpaper has good impact resistance.
[0014]
Next, as a plasticizer used for the fiber-based resin layer 3, diethyl phthalate, triphenyl phosphate, tricresyl phosphate, triacetylene, toluene ethyl sulfonamide, ethyl phthalyl ethyl glycolate (EPEG), butyl Phthalyl butyl glycolate, methyl phthalyl ethyl glycolate and the like can be mentioned, and the addition amount is preferably about 10 to 20% of the acetic acid fiber resin, and the flow temperature is lowered as the addition amount is increased. , The flexibility will be good.
[0015]
Next, as the flame retardant used for the fiber-based resin layer 3 of the present invention, silicone-based, phosphoric acid-based, inorganic metal hydroxides, etc. are conceivable, which is environmentally friendly and can be added in a small amount by adding a flame retardant. Those that can effectively impart flame retardancy are preferred, and silicone flame retardants are extremely effective. Especially when high molecular weight silicone flame retardants are used, the melt tension at the time of resin melting (resin foaming) is stable. Specifically, polydimethylsiloxane alone or a mixture of a polydimethylsiloxane derivative having an epoxy group or a methacrylate group and silicon dioxide is preferable. Further, by using 100% of the silicone flame retardant, the flame retardant can be sufficiently imparted with 30 parts by weight with respect to 100 parts by weight of the resin forming the flame retardant layer, but the silicone flame retardant is expensive. For this reason, 100% of the silicone flame retardant cannot be used, and it must be used in combination with other environmentally friendly flame retardants. As a flame retardant used in combination with this silicone flame retardant, an inorganic flame retardant, specifically, a mixture of one kind or two or more kinds of inorganic substances such as mica, aluminum hydroxide, magnesium hydroxide, calcium carbonate, etc. Use in combination is appropriate for the above reasons.
[0016]
Next, as an inorganic filler, it is relatively cheaper than the resin component, so it is added for the purpose of reducing the cost or reducing the calorie burned by reducing the organic content per unit amount. Aluminum hydroxide, magnesium hydroxide Known ones such as calcium carbonate are used. The addition amount is about 20 to 100 parts by weight with respect to 100 parts by weight of the resin. In addition, inorganic pigments such as titanium dioxide and iron oxide are used as the colorant. In particular, in the present invention, titanium dioxide pigments are effective when light colors such as yellow, gray, and white are clearly obtained. The addition amount of the titanium dioxide pigment is preferably 10 to 20 parts by weight with respect to 100 parts by weight of the cellulose acetate resin. These inorganic components are related to the flame retardancy, film-forming property, and design properties of the resin layer, and the addition amount is preferably 50 to 80 parts by weight with respect to 100 parts by weight of the resin.
[0017]
Next, the decorative layer 4 of the present invention can be generally formed with ink by a known printing method such as gravure printing, offset printing, silk screen printing or the like. Examples of the printed pattern include a printed pattern such as a wood grain pattern, a stone pattern, a cloth pattern, a skin pattern, a geometric figure, a character, a symbol, or a solid pattern. As the ink to be used, as a vehicle, a polyester resin, a polyurethane resin composed of isocyanate and polyol, an acrylic resin, a vinyl acetate resin, a cellulose resin, a polyamide resin, and the like are used in a mixture of one or more, A pigment, a solvent, various auxiliary agents, etc. added thereto to make an ink can be used. Further, a primer layer may be provided between the fiber-based resin layer 3 and the decorative layer 4 to improve the adhesion.
[0018]
Further, a gloss adjusting layer may be provided as the decorative layer 4 in order to adjust the uneven surface 5 of the wallpaper 1 to a desired gloss. As a method for adjusting the gloss, a method in which an ink kneaded with a matting agent such as silica is applied to the surface is mainly used. As the binder of the ink used, acrylic resin, polyurethane resin, polyester resin, epoxy resin, and transparent or translucent resin of these copolymer resins are used.
[0019]
Further, the uneven pattern 5 is formed by embossing from the outermost layer on the paper base material layer 2 when the laminate is heated using a known sheet or a rotary embossing machine. The film is formed from the decorative layer 4 to the paper-based base material layer 2 by applying the irregularities and cooling it later. Examples of the shape of the concavo-convex pattern 5 include a wood grain plate conduit groove, a stone plate surface unevenness, a cloth surface texture, a satin texture, a grain, a hairline, and a striated groove.
[0020]
Next, the wallpaper manufacturing method of the present invention will be described using the wallpaper 1 of the above-described embodiment as an example. First, on the paper base material layer 2 made of backing paper, a mixed resin material made of a fibrous resin containing an inorganic component made of a silicone-based flame retardant, titanium dioxide and an inorganic filler is heated and melt extruded to form a laminate. After producing and applying corona discharge treatment to the surface of the fiber-based resin layer 3 exposed from the laminate, and forming the decorative layer 4 such as pattern printing by gravure printing on the corona discharge treatment surface, By heating the fiber-based resin layer 3 in a heating furnace, and forming the uneven pattern 5 with the embossed plate from the decorative layer 4 side to the paper-based base material layer 2, cooling it. Wallpaper 1 can be obtained.
[0021]
【Example】
Example 1
On a flame-retardant backing paper having a basis weight of 70 g / m 2 (manufactured by Kojin Co., Ltd., WK870D), a resin layer forming composition having the following composition is laminated by a T-die extrusion method so that the resin thickness becomes 100 μm. Created the body.
Figure 0005050295
Next, after the corona discharge treatment is applied to the resin layer surface of the laminate, the corona discharge treatment surface is gravure-printed with a water-based ink made of acrylic resin (Ode, manufactured by The Inktec Co., Ltd.) and has a grain pattern. The pattern layer was provided. Next, this was heated in a heating furnace (220 ° C. for 60 seconds), and embossed with a grain pattern embossed plate from the printed layer side to obtain a wallpaper of the present invention in which an uneven pattern was formed.
[0022]
[Composition of resin layer forming composition, unit by weight]
Resin Acetic acid fiber based resin 100
Filler Aluminum hydroxide 30
Pigment Titanium dioxide 15
Flame retardant Silicone 2
Plasticizer EPEG 10
[0023]
Comparative Example 1
A 30 g / m 2 cellulosic nonwoven fabric (Benryse TS327, manufactured by Asahi Kasei Kogyo Co., Ltd.) was laminated on the paper-based substrate of Example 1, and gravure printing was performed thereon to provide a textured pattern layer. . Next, this was heated in a heating furnace (220 ° C. for 60 seconds), and embossed with a grain pattern embossed plate from the printed layer side to obtain a wallpaper having an uneven pattern.
[0024]
Comparative Example 2
A 28 g / m 2 thin paper (SNP-28, manufactured by Takasaki Sanko Co., Ltd.) was laminated on the paper-based substrate of Example 1, and then a gravure printing was performed to provide a pattern layer with a grain pattern. . Next, this was heated in a heating furnace (220 ° C. for 60 seconds), and embossed with a grain pattern embossed plate from the printed layer side to obtain a wallpaper having an uneven pattern.
[0025]
Comparative Example 3
The same as in Example 1 except that a laminate was prepared on the paper-based base material of Example 1 by forming a resin layer forming composition having the following composition by a T-die extrusion method so that the resin thickness was 100 μm. And got a wallpaper.
[Composition of resin layer forming composition, unit by weight]
Resin Ethylene-vinyl acetate copolymer resin 100
Filler Aluminum hydroxide 30
Pigment Titanium dioxide 15
Foaming agent ADCA 6
Flame retardant Silicone 5
[0026]
Various tests were performed on the wallpaper of Example 1 and Comparative Examples 1 to 3 prepared above, and the results are summarized in Table 1.
[0027]
Figure 0005050295
[0028]
Figure 0005050295
[0029]
As can be seen from the results in Table 1, combustibility, open time, embossing, and environmental properties (CO 2 emission concentration) are obtained by laminating a fiber base resin with a melt coating on a paper-based base material layer. ) Both show good results.
[0030]
【Effect of the invention】
As described above, the wallpaper of the present invention has a structure in which a fibrous base resin layer made of an acetic acid fibrous base resin containing a flame retardant, an inorganic filler, and a plasticizer and a decorative layer are sequentially provided on a paper base layer. By doing so, no toxic gas such as hydrogen chloride gas is generated at the time of fire or combustion, and since no petrochemical hydrocarbon compound is used, the amount of carbon dioxide gas emitted during combustion is low and the global environment You can get a friendly wallpaper.
And since the surface resin layer has little air permeability, a wallpaper having a long open time and excellent workability can be obtained.
[Brief description of the drawings]
FIG. 1 is a layer configuration diagram of an embodiment of a wallpaper of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wallpaper 2 Paper-type base material layer 3 Fibrin base resin layer 4 Decoration layer 5 Uneven pattern

Claims (2)

紙質系基材層上に、セルロース(繊維素)を熱可塑性に改質した樹脂からなる繊維素系樹脂層を積層し、該繊維素系樹脂層上に装飾層が設けられた構成からなり、前記繊維素系樹脂層が酢酸繊維素樹脂からなり、難燃剤、無機充填剤、可塑剤を含み、前記装飾層から前記紙質系基材層にかけて凹凸模様が施されていることを特徴とする壁紙。On the paper-based substrate layer, a cellulose resin layer made of a resin obtained by modifying cellulose (fibrin) to thermoplasticity is laminated, and a decoration layer is provided on the fiber-based resin layer. The wallpaper characterized in that the fiber-based resin layer is made of an acetic acid fiber-based resin, includes a flame retardant, an inorganic filler, and a plasticizer, and has a concavo-convex pattern from the decorative layer to the paper-based base material layer. . 前記繊維素系樹脂層が、酢酸繊維素樹脂100重量部に対して可塑剤が10〜20重量部、無機充填剤が20〜100重量部含むことを特徴とする請求項1に記載の壁紙 The wallpaper according to claim 1, wherein the fiber-based resin layer includes 10 to 20 parts by weight of a plasticizer and 20 to 100 parts by weight of an inorganic filler with respect to 100 parts by weight of an acetate fiber resin .
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CN104453145A (en) * 2014-11-28 2015-03-25 常盛杰 Fireproof fluorescent flocking wallpaper with air purifying and guiding functions
CN105803859A (en) * 2016-04-22 2016-07-27 安徽索亚装饰材料有限公司 High-toughness warm-keeping type flame-retardant wallpaper raw paper and manufacturing method of high-toughness warm-keeping type flame-retardant base wallpaper

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JP4715250B2 (en) * 2005-03-15 2011-07-06 凸版印刷株式会社 Manufacturing method of embossed decorative paper and paper container using the same
CN105109222A (en) * 2015-08-31 2015-12-02 刘惠强 Gravel wallpaper printing technology
CN109267328A (en) * 2018-08-15 2019-01-25 杭州布源纺织有限公司 A kind of nano flame retardant wall paper and preparation method thereof

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JPS60149457A (en) * 1984-01-17 1985-08-06 大日本印刷株式会社 Pre-coated decorative sheet for repainting
JP2663271B2 (en) * 1988-02-15 1997-10-15 大日本印刷株式会社 Decorative sheet and method for producing the same
JP2672971B2 (en) * 1988-04-25 1997-11-05 大日本印刷株式会社 Wall paper
JPH0811879B2 (en) * 1991-02-08 1996-02-07 株式会社トウペ Wallpaper with little bleeding and method for producing the wallpaper
JPH04331149A (en) * 1991-05-07 1992-11-19 Tokyo Fine Chem Kk Decorative material using expandable grain
JP3144777B2 (en) * 1998-02-16 2001-03-12 東リ株式会社 Recycled wallpaper
JPH11293599A (en) * 1998-04-15 1999-10-26 Aswan Corp Wallpaper
JP2000063582A (en) * 1998-08-17 2000-02-29 Asahi Chem Ind Co Ltd Wallpaper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104453145A (en) * 2014-11-28 2015-03-25 常盛杰 Fireproof fluorescent flocking wallpaper with air purifying and guiding functions
CN105803859A (en) * 2016-04-22 2016-07-27 安徽索亚装饰材料有限公司 High-toughness warm-keeping type flame-retardant wallpaper raw paper and manufacturing method of high-toughness warm-keeping type flame-retardant base wallpaper

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