JP3144777B2 - Recycled wallpaper - Google Patents
Recycled wallpaperInfo
- Publication number
- JP3144777B2 JP3144777B2 JP28742398A JP28742398A JP3144777B2 JP 3144777 B2 JP3144777 B2 JP 3144777B2 JP 28742398 A JP28742398 A JP 28742398A JP 28742398 A JP28742398 A JP 28742398A JP 3144777 B2 JP3144777 B2 JP 3144777B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- wallpaper
- surface layer
- backing
- paper
- 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
- Laminated Bodies (AREA)
- Paper (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は裏打ち基材に樹脂被
覆層を介してポリ塩化ビニル樹脂（以下、ＰＶＣと記
す）等の軟質樹脂表面層を被覆したリサイクルの容易な
壁紙に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an easily recyclable wallpaper in which a soft resin surface layer such as a polyvinyl chloride resin (hereinafter referred to as PVC) is coated on a backing substrate via a resin coating layer.
【０００２】[0002]
【従来の技術】基材としての裏打ち紙の上にＰＶＣ等の
合成樹脂が被覆された壁紙は公知である。省資源、及び
環境保護の気運の高まりにより、壁紙の一部、又は全部
のリサイクルが提案されている。しかし、裏打ち基材と
表層の合成樹脂との分離が非常に難しいため、貼り替え
時に発生する上記壁紙のリサイクルは困難で、壁紙の廃
品の大部分が埋め立て処理、焼却処理等により処理され
ている。しかし埋め立て処理、焼却処理には処理するス
ペース、処理施設、環境問題が付随し、これら処理が困
難に遭遇している。この問題を解決するために、様々な
壁紙の裏打ち基材と、その上の樹脂表面層の分離方法、
再利用方法等が検討、開発されてきた。2. Description of the Related Art A wallpaper in which a synthetic resin such as PVC is coated on a backing paper as a base material is known. Due to a growing trend toward resource saving and environmental protection, recycling of part or all of wallpaper has been proposed. However, since it is very difficult to separate the backing substrate and the synthetic resin of the surface layer, it is difficult to recycle the above-mentioned wallpaper generated at the time of replacement, and most of the waste wallpaper is disposed of by landfill treatment, incineration treatment, and the like. . However, landfilling and incineration are accompanied by space, processing facilities, and environmental issues, and these are difficult to process. In order to solve this problem, the backing substrate of various wallpapers and the method of separating the resin surface layer on it,
Reuse methods have been studied and developed.
【０００３】例えば、壁紙の再利用方法として 裏打ち
紙が付着したままＰＶＣ壁紙を粉砕、若しくは加熱混練
し、ペレット等に再加工する方法（特開平６−１２６７
４５号、特開平６−１１４８３８号）、 裏打ち紙に水
溶性高分子とＰＶＣ樹脂系若しくは酢酸ビニル系の合成
バインダーを主成分とする塗被層を設け、その上にＰＶ
Ｃ樹脂を積層とした壁紙であって、温水、若しくはアル
カリ性水溶液中に浸漬、撹拌して、ＰＶＣ樹脂等と裏打
ち紙を分離する方法（特開平６−１７３２００号）等が
ある。[0003] For example, as a method of reusing wallpaper, a method of pulverizing or heating and kneading PVC wallpaper with a backing paper adhered and reworking it into pellets or the like (Japanese Patent Laid-Open No. 6-1267)
No. 45, JP-A-6-114838), a backing paper provided with a coating layer mainly composed of a water-soluble polymer and a synthetic binder of a PVC resin type or a vinyl acetate type.
There is a method of separating a backing paper from a PVC resin or the like by immersing and stirring in hot water or an alkaline aqueous solution, which is a wallpaper in which C resin is laminated (Japanese Patent Application Laid-Open No. 6-173200).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上述の
ような公知の方法では実施するため、例えば多種のスク
リュー（特開平６−１２６７４５号）や、粉砕機、高周
波ウエルダー（特開平６−１１４８３８号）等の特別な
設備が必要であり、また温水、若しくはアルカリ性水溶
液中に浸漬する（特開平６−１７３２００号）等の処理
工程が必要で効率が悪かった。さらには分離した樹脂へ
裏打ち基材の繊維分が混入し、リサイクル製品の品質が
低下する等の種々の問題があった。However, in order to carry out the above-mentioned known method, for example, various kinds of screws (JP-A-6-126745), a pulverizer, and a high-frequency welder (JP-A-6-14838) are used. And special equipment such as immersion in warm water or an alkaline aqueous solution (JP-A-6-173200). Further, there are various problems such as mixing of the fiber of the backing base material into the separated resin, which deteriorates the quality of the recycled product.
【０００５】本発明の課題は裏打ち基材と軟質樹脂表面
層を完全かつ容易に分離することができ、その結果とし
て上記表面層の樹脂のリサイクルが極めて容易な壁紙を
提供することにある。An object of the present invention is to provide a wallpaper in which the backing substrate and the soft resin surface layer can be completely and easily separated, and as a result, the resin of the surface layer can be very easily recycled.
【０００６】本発明は、裏打ち基材上に直接樹脂フィル
ムを積層し、その上に軟質樹脂表面層が積層された壁紙
であって、軟質樹脂表面層が樹脂フィルム層との界面で
剥離することを特徴とする壁紙に係る。The present invention relates to a wallpaper in which a resin film is directly laminated on a backing substrate and a soft resin surface layer is laminated thereon, wherein the soft resin surface layer is peeled off at the interface with the resin film layer. A wallpaper characterized by the following.
【０００７】[0007]
【発明の実施の形態】以下、図面を参照して本発明の壁
紙について説明する。本発明壁紙の断面図を図１〜２に
示す。２は裏打ち基材である。裏打ち基材は従来汎用さ
れている裏打ち紙等を用いることができる。裏打ち基材
は図１のように単層でも、図２のように紙層１、１’で
剥離するタイプでも良い。裏打ち基材としては、例えば
難燃紙、クラフト紙、水酸化アルミニウム紙等の無機質
紙が好適であるが、紙以外の織布、若しくは不織布を用
いてもよい。裏打ち基材の厚さは０.０３mm〜０.５mm程
度が好ましい。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the wallpaper of the present invention will be described with reference to the drawings. A cross-sectional view of the wallpaper of the present invention is shown in FIGS. 2 is a backing substrate. As the backing substrate, a conventionally used backing paper or the like can be used. The backing substrate may be a single layer as shown in FIG. 1 or may be of a type which is separated by the paper layers 1 and 1 ′ as shown in FIG. As the backing substrate, for example, inorganic paper such as flame-retardant paper, kraft paper, and aluminum hydroxide paper is suitable, but woven fabric or non-woven fabric other than paper may be used. The thickness of the backing substrate is preferably about 0.03 mm to 0.5 mm.
【０００８】裏打ち基材と軟質樹脂表面層間に形成する
樹脂被覆層３の樹脂としては、例えばポリエステル樹脂
［ポリエチレンテレフタレート樹脂（ＰＥＴ樹脂）な
ど］、低密度ポリエチレン樹脂（低密度ＰＥ樹脂）、高
密度ＰＥ樹脂、ポリプロピレン樹脂（ＰＰ樹脂）、アク
リル樹脂、ナイロン樹脂、エチレン酢酸ビニル共重合体
（ＥＶＡ樹脂）、エチレン−ビニルアルコール共重合体
（ＥＶＯＨ樹脂）等の非水溶性樹脂 を例示できる。As the resin of the resin coating layer 3 formed between the backing substrate and the soft resin surface layer, for example, polyester resin (polyethylene terephthalate resin (PET resin), etc.), low density polyethylene resin (low density PE resin), high density PE resin, polypropylene resin (PP resin), acrylic resin, nylon resin, ethylene-vinyl acetate copolymer (EVA resin), an ethylene - vinyl alcohol copolymer (EVOH resin) the water-insoluble resins of the like.
【０００９】また本発明において樹脂被覆層は２層以上
の多層構造であってもよい。例えばＰＰ樹脂フィルムと
ＥＶＡフィルムを積層したもの、ＰＰ樹脂フィルムの上
にＥＶＡ樹脂をコートしたもの、ＰＥＴ樹脂フィルムの
上にデンプン水溶液をコートしたものなどを例示でき
る。このように樹脂被覆層を２層以上の多層構造にする
と、表面層と基材の積層強度の調整が可能で、表面層を
剥離した場合、裏打ち基材への繊維分の付着を防止した
り、表面層が剥がれやすくなることを防止でき、特に好
ましい。樹脂被覆層の厚さは０.００５〜０.１mmが好ま
しく、特に０.０１〜０.０２mmが好適である。さらに、
裏打ち基材と表面層との積層力保持の為上記被覆層間に
コロナ放電処理、ＵＶ処理、プラズマ処理、高圧プレス
ラミネート等が使用できる。In the present invention, the resin coating layer may have a multilayer structure of two or more layers. For example, a laminate of a PP resin film and an EVA film, a laminate of a PP resin film coated with an EVA resin, a laminate of a PET resin film coated with a starch aqueous solution, and the like can be given. When the resin coating layer has a multilayer structure of two or more layers, the lamination strength of the surface layer and the base material can be adjusted, and when the surface layer is peeled, adhesion of the fiber to the backing base material is prevented. This is particularly preferable because it can prevent the surface layer from easily peeling off. The thickness of the resin coating layer is preferably from 0.005 to 0.1 mm, and particularly preferably from 0.01 to 0.02 mm. further,
Corona discharge treatment, UV treatment, plasma treatment, high pressure press lamination, or the like can be used between the coating layers to maintain the laminating force between the backing substrate and the surface layer.
【００１０】軟質樹脂表面層４の樹脂としては、例えば
ＰＶＣ、ＥＶＡ、アクリル樹脂、ナイロン樹脂等のポリ
マー、エラストマー等の軟質樹脂が例示できる。尚、軟
質樹脂表面層を発泡させてもよい。軟質樹脂表面層の厚
さは０.０５〜２.０mmが好ましく、特に０.３〜０.８mm
が好適である。Examples of the resin for the soft resin surface layer 4 include soft resins such as polymers such as PVC, EVA, acrylic resin and nylon resin, and elastomers. The soft resin surface layer may be foamed. The thickness of the soft resin surface layer is preferably 0.05 to 2.0 mm, particularly 0.3 to 0.8 mm.
Is preferred.
【００１１】また、軟質樹脂表面層４に模様又はエンボ
ス等を付与してもよく、その方法としてはグラビア印
刷、ロータリースクリーン印刷、印刷シート（種々の樹
脂のシートが使用可能であるが表層と同種の樹脂からな
るシートが好ましい。）の積層、または転写紙の転写に
よる模様付与方法等を用いることができる。エンボス方
法としては、ケミカルエンボス、メカニカルエンボス等
によるエンボス付与方法が使用でき、これら模様付与方
法及びエンボス付与方法の一方又は両方を適宜組み合わ
せることにより、種々多様な意匠を付与することが可能
である。The soft resin surface layer 4 may be provided with a pattern or embossing, for example, by gravure printing, rotary screen printing, printing sheet (a variety of resin sheets can be used, but the same type as the surface layer). The resin sheet is preferably used.), Or a method of imparting a pattern by transfer of transfer paper or the like can be used. As the embossing method, an embossing method using chemical embossing, mechanical embossing, or the like can be used. By appropriately combining one or both of these patterning methods and embossing methods, it is possible to provide various designs.
【００１２】樹脂被覆層３、及び軟質樹脂表面層４の素
材を選択する際、樹脂被覆層３と軟質樹脂表面層４の層
間ａの密着力が施工上、あるいは使用上支障のない程度
であること、さらにその剥離強度より裏打ち基材層内の
不特定な位置の層間ｃ、及び／又は裏打ち基材２と樹脂
被覆層３の層間ｂの剥離強度の方が強くなるように適宜
選択することができる。例えば、上記の条件を満たす適
切な組み合わせを表１に例示する。但し、当例示におい
て裏打ち基材はクラフト紙とする。When selecting the material for the resin coating layer 3 and the soft resin surface layer 4, the adhesion between the interlayer a between the resin coating layer 3 and the soft resin surface layer 4 is such that there is no problem in construction or use. In addition, appropriate selection is made so that the peel strength between the interlayer c at an unspecified position in the backing base material layer and / or the interlayer b between the backing base material 2 and the resin coating layer 3 is higher than the peel strength. Can be. For example, an appropriate combination satisfying the above conditions is illustrated in Table 1. However, in this example, the backing substrate is kraft paper.
【００１３】[0013]
【表１】 [Table 1]
【００１４】上記のように構成された壁紙は貼り替えの
際、通常の壁紙を剥離する要領で軟質樹脂表面層４のみ
を剥離することが可能である。尚、裏打ち基材２の層内
で剥離した分は焼却処分することもできる。また裏打ち
基材が紙層１、１’の抄合したものであれば層間ｃで容
易に剥離し、焼却処分することができる。When the wallpaper configured as described above is replaced, it is possible to remove only the soft resin surface layer 4 in the manner of removing the normal wallpaper. In addition, the part peeled in the layer of the backing substrate 2 can be incinerated. In addition, if the backing substrate is a composite of the paper layers 1 and 1 ', it can be easily peeled off between the layers c and incinerated.
【００１５】[0015]
【実施例】以下に実施例を示して本発明について説明す
るが、本発明はこれに限定されるものではない。 実施例１ （１）７０g／m2（厚さ０.１１mm）のクラフト紙の裏打
ち基材にＴダイ押出し機によって成型された厚さ０.０
２mmのＰＥＴフィルムを積層することにより非水溶性樹
脂被覆層を形成した。 （２）（１）で成型した裏打ち基材紙上に表２の表層配
合のプラスチゾルをコンマコーターで１５０μmの厚さ
に塗布し、ヒーターにて加熱してプリゲルさせた後、当
該プリゲルシート上にグラビア印刷を施し、模様付けを
した。 （３）さらに、オーブンにて一定時間（約３０秒）加熱
し、上記プリゲルさせたプラスチゾルを発泡ゲル化させ
た。 （４）一度冷却した後、再度ヒーターにて表面のみ加熱
し、エンボスロールを通すことにより表面に凹凸模様を
設け、本発明の壁紙が得られた。The present invention will be described below with reference to examples, but the present invention is not limited to these examples. Example 1 (1) A thickness of 0.07 g / m 2 (0.11 mm thick) formed on a kraft paper backing substrate by a T-die extruder.
A water-insoluble resin coating layer was formed by laminating a 2 mm PET film. (2) A plastisol having a surface layer composition shown in Table 2 was applied to a thickness of 150 μm on a backing base paper molded in (1) using a comma coater, heated with a heater to pregel, and then gravure onto the pregel sheet. Printed and patterned. (3) Further, the pre-gelled plastisol was foamed and gelled by heating in an oven for a predetermined time (about 30 seconds). (4) After cooling once, only the surface was heated again by a heater and passed through an embossing roll to provide an uneven pattern on the surface, whereby the wallpaper of the present invention was obtained.
【００１６】[0016]
【表２】表層配合 [Table 2] Surface layer formulation
【００１７】実施例２ 裏打ち基材として、予め紙材料が２層構造になった７０
g／m2（厚さ０.１１mm）のクラフト紙を用いた以外は実
施例１と同様の方法で本発明の壁紙を得た。Example 2 A paper material having a two-layered structure was used as a backing substrate in advance.
A wallpaper of the present invention was obtained in the same manner as in Example 1 except that kraft paper having a g / m 2 (0.11 mm thickness) was used.
【００１８】実施例３ 裏打ち基材上のＰＥＴフィルムの代りに厚さ０.０２mm
の耐熱ＰＰフィルムをＴダイ押出機によって積層し、以
下、実施例１の（２）〜（４）と同様の方法で本発明の
壁紙を得た。Example 3 Instead of a PET film on a backing substrate, a thickness of 0.02 mm
Was laminated by a T-die extruder, and the wallpaper of the present invention was obtained in the same manner as in Examples 1 (2) to (4).
【００１９】実施例４ ＰＶＣ軟質表面層と裏打ち基材間に、上にＥＶＡ ３g／
m2、下に耐熱ＰＰフィルム（厚さ０.０２mm）を積層し
た樹脂層を介在させた以外は、実施例１と同様にして本
発明のリサイクル壁紙を得た。ピールアップ時剥離強度
は３３０g／４cm巾で、良好な界面剥離性が確保でき
た。Example 4 Between PVC soft surface layer and backing substrate, EVA 3 g /
The recycled wallpaper of the present invention was obtained in the same manner as in Example 1 except that a resin layer in which a heat-resistant PP film (0.02 mm in thickness) was laminated was interposed below m 2 . Peel-up peel strength was 330 g / 4 cm width, and good interfacial peelability was secured.
【００２０】比較例１ 裏打ち基材上にＰＥＴフィルムを積層しない他は実施例
１と同様の方法で壁紙を得た。Comparative Example 1 A wallpaper was obtained in the same manner as in Example 1 except that the PET film was not laminated on the backing substrate.
【００２１】剥離試験 （１）試験片（３００mm×製品幅）、糊（ポリ酢酸ビニ
ルを２０重量％混合した澱粉糊）及び石膏ボードを室温
２０℃、及び湿度６０％の恒温室内で２４時間以上コン
ディションする。 （２）石膏ボードに試験片を糊で貼り付け、室温２０
℃、及び湿度６０％の恒温室内で１ケ月放置する。 （３）試験片端部をカッターの刃先等鋭利なもので表
層、即ち軟質樹脂表面層を剥離させ、表層と裏打ち基材
紙が完全に剥離されるか否か、及び完全に分離されるか
否かを観察する。試験結果は表３の通りである。Peeling test (1) Test pieces (300 mm × product width), glue (starch glue containing 20% by weight of polyvinyl acetate) and gypsum board were placed in a constant temperature room at room temperature of 20 ° C. and humidity of 60% for 24 hours or more. Condition. (2) Paste the test piece on the gypsum board with glue, room temperature 20
Leave for 1 month in a constant temperature room at 60 ° C and 60% humidity. (3) The surface layer, that is, the soft resin surface layer, is peeled off with a sharp edge such as a blade of a cutter at the end of the test piece, and whether the surface layer and the backing base paper are completely peeled off and whether they are completely separated. Observe Table 3 shows the test results.
【００２２】[0022]
【表３】 [Table 3]
【００２３】[0023]
【発明の効果】裏打ち基材層と軟質樹脂表面層の間に樹
脂被覆層を設けることにより、裏打ち基材に軟質樹脂表
面層が直接密着されないので、軟質樹脂表面層と裏打ち
基材を完全にしかも容易に分離することができ、しか
も、分離した軟質樹脂表面層に裏打ち基材の繊維等が混
入することがなく、リサイクルが一層しやすくなった。
また、この軟質樹脂表面層を分離回収し、粉砕等の簡単
な加工をすることにより、再生原料として多岐にわたっ
て使用することができる。By providing the resin coating layer between the backing base material layer and the soft resin surface layer, the soft resin surface layer does not directly adhere to the backing base material, so that the soft resin surface layer and the backing base material can be completely bonded. In addition, it can be easily separated, and the fibers of the backing substrate and the like are not mixed into the separated soft resin surface layer, and the recycling is further facilitated.
Further, by separating and recovering the soft resin surface layer and subjecting it to simple processing such as pulverization, the soft resin surface layer can be widely used as a recycled material.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の壁紙の断面図である。FIG. 1 is a sectional view of a wallpaper of the present invention.
【図２】本発明の他の壁紙の断面図である。FIG. 2 is a sectional view of another wallpaper according to the present invention.
１、１’ 紙層 ２ 裏打ち基材 ３ 樹脂被覆層 ４ 軟質樹脂表面層 1, 1 'paper layer 2 backing substrate 3 resin coating layer 4 soft resin surface layer
Claims (4)
し、その上に軟質樹脂表面層が積層された壁紙であっ
て、軟質樹脂表面層が樹脂フィルム層との界面で剥離す
ることを特徴とする壁紙。1. A wallpaper in which a resin film is directly laminated on a backing substrate and a soft resin surface layer is laminated thereon, wherein the soft resin surface layer is peeled off at an interface with the resin film layer. And wallpaper.
ある請求項１の壁紙。2. The wallpaper according to claim 1, wherein the resin of the resin film is a water-insoluble resin.
ステル、アクリル樹脂、又はナイロン樹脂である請求項
２の壁紙。3. The wallpaper according to claim 2, wherein the water-insoluble resin is a polyolefin, polyester, acrylic resin or nylon resin.
ある請求項１の壁紙。4. The wallpaper according to claim 1, wherein the resin film layer has a multilayer structure of two or more layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28742398A JP3144777B2 (en) | 1998-02-16 | 1998-10-09 | Recycled wallpaper |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5137398 | 1998-02-16 | ||
| JP10-51373 | 1998-02-16 | ||
| JP28742398A JP3144777B2 (en) | 1998-02-16 | 1998-10-09 | Recycled wallpaper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11293600A JPH11293600A (en) | 1999-10-26 |
| JP3144777B2 true JP3144777B2 (en) | 2001-03-12 |
Family
ID=26391913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28742398A Expired - Fee Related JP3144777B2 (en) | 1998-02-16 | 1998-10-09 | Recycled wallpaper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3144777B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010087057A (en) * | 2000-03-06 | 2001-09-15 | 남영식 | Manufacturing Method of Wall Paper and the Wall Paper |
| JP5050295B2 (en) * | 2000-12-18 | 2012-10-17 | 大日本印刷株式会社 | wallpaper |
| JP3917137B2 (en) * | 2002-04-08 | 2007-05-23 | 株式会社インクコーポレーション | Wall cloth |
| KR100767014B1 (en) * | 2005-10-17 | 2007-10-15 | 전효철 | Aqueous foam wallpaper for improving embossable plasticity and Method for manufacturing thereof |
| KR101048715B1 (en) * | 2007-01-30 | 2011-07-14 | (주)엘지하우시스 | Interior wallpaper and its manufacturing method |
| JP5562974B2 (en) * | 2008-11-26 | 2014-07-30 | エーブリー デニソン コーポレイション | Printable flame retardant polymer film |
| CN102971144B (en) | 2010-06-30 | 2015-04-08 | 优泊公司 | Readily removable film, label for in-mold molding, molded resin article having label attached thereto, wallpaper, glue label, and container having label attached thereto |
-
1998
- 1998-10-09 JP JP28742398A patent/JP3144777B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11293600A (en) | 1999-10-26 |
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