JP3687021B2 - Method of peeling the layer of the laminate - Google Patents

Method of peeling the layer of the laminate Download PDF

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JP3687021B2
JP3687021B2 JP35268797A JP35268797A JP3687021B2 JP 3687021 B2 JP3687021 B2 JP 3687021B2 JP 35268797 A JP35268797 A JP 35268797A JP 35268797 A JP35268797 A JP 35268797A JP 3687021 B2 JP3687021 B2 JP 3687021B2
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laminate
layer
sheet
peeling
rotating body
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JPH11179335A (en
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博明 町元
敏晴 名越
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Kaneka Corp
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Kaneka Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)
  • Laminated Bodies (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Description

【０００１】
【発明の属する技術分野】
この発明は、例えば壁紙等の建物の内装材等に使用される積層体の層の剥離方法に関する。
【０００２】
【従来の技術】
従来から、例えば壁紙等の建物の内装材等としては、複数層からなるシート状積層体が使用されることが知られている。このシート状積層体の意匠面を構成する表層には、凹凸模様等により所定のデザインで模様形成層等が形成されるが、製造過程でこの模様形成層等にキズやシワ等の製造不良が発生することがある。
【０００３】
また、製造不良のない完成品でも、市場におけるデザインの流行の変遷等により、出荷や使用等されることなく、そのまま在庫として残ることがある。
【０００４】
しかしながら、上記のような不良品や在庫品は、有効に利用されることなく産業廃棄物として廃棄処分となるため、資源が無駄になるという問題点がある。
【０００５】
【発明が解決しようとする課題】
この発明は、以上のような問題点に鑑みてなされたものであり、建物の内装材等のシート状積層体を構成する各層の再利用を図ることができる積層体の層の剥離方法を提供することを目的とする。
【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請求項１の手段とするところは、複数層からなるシート状積層体の少なくとも１層を、切削刃を外周面に設けてなる回転体により切削剥離する積層体の層の剥離方法であって、前記シート状積層体を、前記回転体の後方側に所定間隔を開けて配置した板状の送りプレートの前方側の上縁に設けられ、後方側の上面が円弧状に形成されかつ前方側が前記回転体に面する斜面となっている横断面が山状の突出部に密着するようにして下方へ送り出し、前記斜面に送られる前記シート状積層体の少なくとも１層を、前記シート状積層体の送り方向と同じ方向に回転する前記回転体により切削剥離する場合に、前記回転体と、前記送りプレート、及び、この送りプレートの上方に前記シート状積層体の厚さより小さい間隔を開けて配置されかつ前記斜面に送られる前記シート状積層体の表層側が前記回転体によって切削剥離されるように前記シート状積層体を前記突出部に密着するようにして下方へ送り出す送りロールから構成されて前記回転体側へ前記シート状積層体を送る送り機構と、切削剥離後のシート状積層体を引き取る引取機構と、を備えた切削剥離装置により、前記シート状積層体の少なくとも１層をその長手方向に沿って連続的に切削剥離することにある。
【０００７】
請求項２の手段とするところは、前記シート状積層体が、紙、織物、編物、不織布、及びガラス繊維マットからなる群から選択される基材と、発泡及び／又は非発泡の合成樹脂からなる模様形成層とを少なくとも備えたことにある。
【０００８】
請求項３の手段とするところは、前記基材が紙からなると共に、前記模様形成層が発泡塩化ビニル系組成物からなる表層材であることにある。
【０００９】
請求項４の手段とするところは、前記切削刃が、前記回転体の外周面に鋸歯状ワイヤを螺旋状に巻回することにより設けられていることにある。
【００１０】
請求項５の手段とするところは、前記切削刃が、前記回転体の外周面に形成した平刃であることにある。
【００１１】
請求項６の手段とするところは、前記切削刃が、前記回転体の外周面に切削用凹凸を形成することにより設けられていることにある。
【００１３】
請求項７の手段とするところは、前記回転体と前記送り機構のいずれか一方を位置調整可能に構成しておくことによって、前記回転体による切削剥離深さを微調整可能としたことにある。
【００１４】
【発明の実施の形態】
以下、この発明の実施形態を図面に基づいて説明する。
図１乃至図３に示すように、この実施形態に係る積層体の層の剥離方法は、例えば、紙からなる基材１と、発泡塩化ビニル系組成物からなる表層材（模様形成層）２との２層からなる壁紙（シート状積層体）３の前記表層材２を、切削刃４をその外周面５ａに設けてなる幅広の回転体５を備えた切削剥離装置６により、その長手方向に沿って連続的に切削剥離するものである。
【００１５】
前記壁紙３は、図２に示すように、例えば、紙からなる基材１の表面１ａに、模様形成層として発泡塩化ビニル系組成物からなる表層材２を積層したものである。
【００１６】
なお、前記基材１としては、この実施形態のような紙に限定されるものではなく、他にガラス繊維マットや、あるいは木綿等の天然繊維、ポリエステル等の合成繊維、アスベストやガラス繊維等の無機繊維等の適宜の繊維から構成された織物、編物、不織布を使用してもよい。また、前記模様形成層も、発泡塩化ビニル系組成物からなる表層材２の他、各種の発泡及び／又は非発泡の、即ち、所定倍率で発泡させた又は発泡させていない合成樹脂、あるいはこれら発泡合成樹脂と非発泡合成樹脂を積層又は分散等により適宜に複合化したものが挙げられる。更に、シート状積層体も壁紙３の他、２層又は３層以上の複数層からなる各種のシート状の積層体が挙げられる。
【００１７】
前記回転体５は、図４に示すように、幅広のドラム状に形成され、その外周面５ａには、例えば鋸歯状ワイヤ７を螺旋状に巻回することにより切削刃４が設けられている。
【００１８】
前記切削剥離装置６は、図１に示すように、所定位置に配置されて高速回転する回転体５と、この回転体５側へ前記壁紙３を送る送り機構８と、切削剥離後の壁紙３を例えば巻き取る引取ロール（引取機構）９とを備えている。
【００１９】
前記送り機構８は、図１及び図３に示すように、例えば、前記回転体５の後方側に所定間隔を開けて配置される送りプレート１０と、該送りプレート１０の上方に前記壁紙３の厚さ（Ｔ１＋Ｔ２）より少し小さい間隔を開けて配置される送りロール１１とから構成されている。
【００２０】
前記送りプレート１０は、例えば、幅広の所定厚さの板状に形成され、その前方側の上縁に横断面が山状の突出部１２が設けられている。この突出部１２の後方側の上面１２ａは、前記送りロール１１の回転により壁紙３をスムーズに送れるように円弧状に形成されている。また、突出部１２の前方側は、前記回転体５に面する斜面１２ｂとなっており、この突出部１２に密着するようにして前記壁紙３が下方へ送り出されるように構成されている。即ち、前記斜面１２ｂに送られる壁紙３の表層側である例えば表層材２が、前記回転体５によって切削剥離されるようになっている。
【００２１】
なお、必要に応じて前記送りプレート１０と送りロール１１のいずれか一方を位置調整可能に構成しておけば、これらの間の間隔を微調整できるので、種々の厚さのシート状積層体に対応できるという利点がある。また、必要に応じてこれら送りプレート１０と送りロール１１とからなる送り機構８と前記回転体５のいずれか一方を位置調整可能に構成しておけば、前記回転体５による切削剥離深さを微調整できるので、種々の厚さのシート状積層体に対応できると共に、目的の層だけを精度良く切削剥離できるという利点がある。更に、これら回転体５と送り機構８の間隔を広げることができるので、壁紙３をこの切削剥離装置６に簡単にセットできるという利点がある。
【００２２】
前記引取ロール９は、例えば、前記送りプレート１０の下方に、前記送り機構８により送り出されてくる切削剥離後の壁紙３を巻き取り可能に配置されている。なお、引取機構としては、この実施形態のような引取ロール９に限定されるものではなく、例えば前記壁紙３等のシート状積層体を巻き取らずにフィードするだけのもの等であってもよい。
【００２３】
ここで、前記壁紙３は、ロール状に巻回された状態で保管されることが多いので、当該切削剥離処理に際しては、その状態のままの原料ロール３ａとして、前記送り機構８の後方側等に回転自在で且つ前記送りプレート１０と送りロール１１の間に送られるように配置しておけばよい。
【００２４】
次に、上記のように構成される切削剥離装置６の動作について説明する。
まず、必要に応じて前記回転体５と送り機構８の間隔を広げると共に、前記送りプレート１０と送りロール１１の間隔も広げた状態等において、前記原料ロール３ａから壁紙３を引き出し、前記送りプレート１０と送りロール１１の間にその端部を挿入した後、壁紙３に適度な圧力が加わる程度にこれらの間隔を狭める。次いで、前記送りロール１１を適宜に回転させて壁紙３の端部を十分に引き出し、下方の引取ロール９に巻き付け等すれば、壁紙３のセットは完了する。
【００２５】
なお、この実施形態においては、壁紙３のうちの前記発泡塩化ビニル系組成物からなる表層材２の方を切削剥離するため、前記送りプレート１０上においてこの表層材２が上方を向くようにセットされているが、前記基材１の方を切削剥離する場合には、この基材１が上方を向くようにセットすればよい。
【００２６】
そして、前記回転体５を作動させて高速回転させると共に、前記送りロール１１や引取ロール９も作動させて回転させた状態で前記回転体５又は送り機構８の位置を移動させて間隔を狭めれば、図３に示すように、前記回転体５の切削刃４によって壁紙３の表層側にある表層材２が切削剥離される。
【００２７】
ここで、高速回転する回転体５の前記切削刃４の先端４ａと前記送りプレート１０の突出部１２の斜面１２ｂとの間隔を、前記壁紙３の基材１の厚さＴ１とほぼ同じ寸法となるように微調整すれば、切削剥離深さが前記表層材２の厚さＴ２とほぼ同じになるので、この表層材２だけをその長手方向に沿って連続的に切削剥離することができる。なお、壁紙３等のシート状積層体が３層以上からなる場合において、このうちの２層又はそれ以上の層を同時に切削剥離する場合でも、それらの合計厚さに応じて同様に微調整すればよい。
【００２８】
上記のようにして切削剥離された後の壁紙３は、ほぼ基材１だけが残り、前記引取ロール９により連続的に巻き取られていく。なお、前記表層材２は、回転体５により粉末状等に切削剥離されるので、必要に応じてこれを更に風力分離等すれば、純度をより高くできるという利点がある。
【００２９】
このように、前記壁紙３等の複数層からなるシート状積層体の少なくとも１層を、切削刃４をその外周面５ａに設けてなる幅広の回転体５により切削剥離するので、この切削剥離される層と残りの層を簡単に分別することができる。そのため、これらを廃棄処分することなく他の用途への再利用が可能となり、資源の有効利用を図ることができるという利点がある。
【００３０】
また、この実施形態のように、前記シート状積層体が、紙、織物、編物、不織布、及びガラス繊維マットからなる群から選択される基材と、発泡及び／又は非発泡の合成樹脂からなる模様形成層とを少なくとも備えている場合には、従来から大量に廃棄されてきた建物の内装材等の各層の再利用を図ることができるという利点がある。この場合、前記基材１が紙からなると共に、前記模様形成層が発泡塩化ビニル系組成物からなる表層材２である時には、従来から大量に廃棄されてきた壁紙等の各層の再利用を図ることができるという利点がある。
【００３１】
更に、前記切削剥離装置６により、前記表層材２等のシート状積層体の少なくとも１層をその長手方向に沿って連続的に切削剥離する場合には、切削剥離する層と残りの層とを効率良く短時間で分別できるという利点がある。
【００３２】
加えて、前記切削刃４が、前記回転体５の外周面５ａに鋸歯状ワイヤ７を螺旋状に巻回することにより設けられている場合には、切削効率が良いので、種々のシート状積層体に対応できるという利点がある。
【００３３】
なお、この切削刃４としては、前記鋸歯状ワイヤ７を使用する他、例えば図５に示すように、前記回転体５の外周面５ａに形成した平刃１３でもよい。この場合には、よりフラットに切削剥離できるので、切削剥離する層と残りの層の分別効率がより高くなるという利点がある。ここで、図５に示す例では、前記平刃１３を回転体５の軸方向に対して平行に形成しているが、螺旋状等に形成したり、あるいは所定幅で段違いに形成しておいてもよい。
【００３４】
また、図６に示すように、前記切削刃４を、前記回転体５の外周面５ａに切削用凹凸１４を形成することにより設けてもよく、この場合には、より細かく切削剥離できるので、分別効率がより高くなるという利点がある。ここで、前記切削用凹凸１４は、前記回転体５の外周面５ａに形成したいわゆるヤスリ状の凹凸であってもよいし、あるいは研摩材等を付着させることにより形成してもよい。
【００３５】
以上、この実施形態で説明した切削剥離装置６は、単に一例を示すものであって、その構成としては特に限定されるものではなく、種々の従来技術を利用することができる。
【００３６】
【実施例】
次に、この発明を実施例により更に詳細に説明するが、この発明は係る実施例に限定されるものではない。
【００３７】
シート状積層体として、紙からなる基材（難燃紙）と、発泡塩化ビニル系組成物からなる表層材（発泡倍率３倍）とから構成された壁紙（関東レザー株式会社製，商品名「ホタカ」）を使用した。
【００３８】
切削剥離装置として開繊機（日本スピンドル製造株式会社製，商品名「スーパーオープナ」）を使用し、前記壁紙の表層材側を切削剥離した。また、この切削剥離により生じた粉末状物を風力分離機（日本専機株式会社製，商品名「密閉循環式風力選別機」）にかけ、純度の高い表層材の粉末を得た。
【００３９】
上記で得られた風力分離後の粉末状の表層材の組成（重量率）を測定した。その結果を次の表１に示す。
【００４０】
【表１】

Figure 0003687021
【００４１】
【発明の効果】
以上のように、請求項１の発明によれば、複数層からなるシート状積層体の少なくとも１層を、切削刃を外周面に設けてなる回転体により切削剥離するので、この切削剥離される層と残りの層を簡単に分別することができる。そのため、これらを廃棄処分することなく他の用途への再利用が可能となり、資源の有効利用を図ることができるという利点がある。また、前記回転体と、この回転体側へ前記シート状積層体を送る送り機構と、切削剥離後のシート状積層体を引き取る引取機構とを備えた切削剥離装置により、前記シート状積層体の少なくとも１層をその長手方向に沿って連続的に切削剥離するので、切削剥離する層と残りの層とを効率良く短時間で分別できるという利点がある。
【００４２】
請求項２の発明によれば、前記シート状積層体が、紙、織物、編物、不織布、及びガラス繊維マットからなる群から選択される基材と、発泡及び／又は非発泡の合成樹脂からなる模様形成層とを少なくとも備えているので、従来から大量に廃棄されてきた建物の内装材等の各層の再利用を図ることができるという利点がある。
【００４３】
請求項３の発明によれば、前記基材が紙からなると共に、前記模様形成層が発泡塩化ビニル系組成物からなる表層材であるので、従来から大量に廃棄されてきた壁紙等の各層の再利用を図ることができるという利点がある。
【００４４】
請求項４の発明によれば、前記切削刃が、前記回転体の外周面に鋸歯状ワイヤを螺旋状に巻回することにより設けられているので、切削効率が良く、そのため種々のシート状積層体に対応できるという利点がある。
【００４５】
請求項５の発明によれば、前記切削刃が、前記回転体の外周面に形成した平刃であるので、よりフラットに切削剥離でき、そのため切削剥離する層と残りの層の分別効率がより高くなるという利点がある。
【００４６】
請求項６の発明によれば、前記切削刃が、前記回転体の外周面に切削用凹凸を形成することにより設けられているので、より細かく切削剥離でき、そのため分別効率がより高くなるという利点がある。
【００４８】
請求項７の発明によれば、前記回転体と前記送り機構のいずれか一方を位置調整可能に構成しておくことによって、前記回転体による切削剥離深さを微調整可能としたので、種々の厚さのシート状積層体に対応できると共に、目的の層だけを精度良く切削剥離できるという利点がある。更に、これら回転体と送り機構の間隔を広げることができるので、壁紙等のシート状積層体をこの切削剥離装置に簡単にセットできるという利点がある。
【図面の簡単な説明】
【図１】この実施形態に係る積層体の層の剥離方法に使用される切削剥離装置の概略説明図。
【図２】図１の壁紙の要部拡大断面図。
【図３】図１の回転体で表層材層を切削剥離する様子を示す要部拡大断面図。
【図４】図１の回転体の概略斜視図。
【図５】回転体の他の例を示す概略斜視図。
【図６】回転体の他の例を示す概略斜視図。
【符号の説明】
１ 基材
２ 表層材（模様形成層）
３ 壁紙（シート状積層体）
４ 切削刃
５ 回転体
５ａ 外周面
６ 切削剥離装置
７ 鋸歯状ワイヤ
８ 送り機構
９ 引取ロール（引取機構）
１３ 平刃
１４ 切削用凹凸[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for peeling a layer of a laminate used for, for example, an interior material of a building such as wallpaper.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, it is known that a sheet-like laminate composed of a plurality of layers is used as an interior material of a building such as wallpaper. On the surface layer constituting the design surface of the sheet-like laminate, a pattern forming layer or the like is formed with a predetermined design by an uneven pattern or the like, but there is a manufacturing defect such as scratches or wrinkles on the pattern forming layer or the like in the manufacturing process. May occur.
[0003]
In addition, a finished product that does not have a manufacturing defect may remain in stock without being shipped or used due to a change in the trend of design in the market.
[0004]
However, the above-mentioned defective products and stock products are disposed of as industrial waste without being effectively used, and there is a problem that resources are wasted.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described problems, and provides a method for peeling a layer of a laminate that can reuse each layer constituting a sheet-like laminate such as a building interior material. The purpose is to do.
[0006]
[Means for Solving the Problems]
The means of claim 1 for achieving the above object is to provide a layer of a laminate in which at least one layer of a sheet-like laminate comprising a plurality of layers is cut and peeled by a rotating body provided with a cutting blade on the outer peripheral surface. The sheet-like laminate is provided on the upper edge of the front side of a plate-like feed plate arranged at a predetermined interval on the rear side of the rotating body, and the upper surface on the rear side is an arc shape. At least one layer of the sheet-like laminate that is sent to the slope, with the cross section formed on the front side being a slope that faces the rotating body and being in close contact with the mountain-shaped protrusion. In the case of cutting and peeling by the rotating body rotating in the same direction as the feeding direction of the sheet-shaped laminate, the rotating body, the feed plate, and the thickness of the sheet-like laminate above the feed plate Small intervals The sheet-like laminated body is arranged in a straight line and is sent to the inclined surface, and is composed of a feed roll that feeds the sheet-like laminated body downward so as to be in close contact with the protruding portion so that the surface layer side of the sheet-like laminated body is cut and peeled by the rotating body And at least one layer of the sheet-like laminate by a cutting / peeling device provided with a feeding mechanism for feeding the sheet-like laminate to the rotating body side and a take-off mechanism for taking up the sheet-like laminate after cutting and peeling. It is to cut and peel continuously along the longitudinal direction .
[0007]
The means of claim 2 is that the sheet-like laminate is made of a base material selected from the group consisting of paper, woven fabric, knitted fabric, non-woven fabric, and glass fiber mat, and a foamed and / or non-foamed synthetic resin. And at least a pattern forming layer.
[0008]
The means of claim 3 is that the base material is made of paper and the pattern forming layer is a surface layer material made of a foamed vinyl chloride composition.
[0009]
According to a fourth aspect of the present invention, the cutting blade is provided by spirally winding a sawtooth wire around the outer peripheral surface of the rotating body.
[0010]
The means of claim 5 is that the cutting blade is a flat blade formed on the outer peripheral surface of the rotating body.
[0011]
The means of claim 6 is that the cutting blade is provided by forming unevenness for cutting on the outer peripheral surface of the rotating body.
[0013]
According to the seventh aspect of the present invention, the cutting peeling depth by the rotating body can be finely adjusted by configuring either the rotating body or the feed mechanism so that the position thereof can be adjusted. .
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 3, the layer peeling method according to this embodiment includes, for example, a base material 1 made of paper and a surface layer material (pattern forming layer) 2 made of a foamed vinyl chloride composition. The surface layer material 2 of the two-layer wallpaper (sheet-like laminate) 3 is cut in the longitudinal direction by a cutting and peeling device 6 including a wide rotating body 5 having a cutting blade 4 provided on the outer peripheral surface 5a. Are continuously cut and peeled along.
[0015]
As shown in FIG. 2, the wallpaper 3 is obtained by laminating a surface layer material 2 made of a foamed vinyl chloride composition as a pattern forming layer on a surface 1a of a base material 1 made of paper, for example.
[0016]
The base material 1 is not limited to paper as in this embodiment, but also glass fiber mats, natural fibers such as cotton, synthetic fibers such as polyester, asbestos and glass fibers. A woven fabric, a knitted fabric, or a nonwoven fabric composed of appropriate fibers such as inorganic fibers may be used. In addition to the surface layer material 2 made of a foamed vinyl chloride composition, the pattern forming layer may be various foamed and / or non-foamed, that is, a synthetic resin foamed or not foamed at a predetermined magnification, or these Examples thereof include those obtained by appropriately combining a foamed synthetic resin and a non-foamed synthetic resin by lamination or dispersion. Furthermore, as the sheet-like laminate, various sheet-like laminates comprising a plurality of layers of two layers or three or more layers in addition to the wallpaper 3 can be mentioned.
[0017]
As shown in FIG. 4, the rotating body 5 is formed in a wide drum shape, and a cutting blade 4 is provided on the outer peripheral surface 5 a by, for example, winding a sawtooth wire 7 in a spiral shape. .
[0018]
As shown in FIG. 1, the cutting and peeling device 6 includes a rotating body 5 that is arranged at a predetermined position and rotates at a high speed, a feed mechanism 8 that sends the wallpaper 3 to the rotating body 5 side, and a wallpaper 3 after cutting and peeling. For example, a take-up roll (take-up mechanism) 9 is provided.
[0019]
As shown in FIGS. 1 and 3, the feed mechanism 8 includes, for example, a feed plate 10 disposed at a predetermined interval on the rear side of the rotating body 5, and the wallpaper 3 above the feed plate 10. The feed roll 11 is arranged with an interval slightly smaller than the thickness (T1 + T2).
[0020]
The feed plate 10 is formed, for example, in a wide plate shape having a predetermined thickness, and a protrusion 12 having a mountain-like cross section is provided on the upper edge of the front side. An upper surface 12 a on the rear side of the protruding portion 12 is formed in an arc shape so that the wallpaper 3 can be smoothly fed by the rotation of the feed roll 11. Further, the front side of the projecting portion 12 is an inclined surface 12 b facing the rotating body 5, and the wallpaper 3 is sent downward so as to be in close contact with the projecting portion 12. That is, for example, the surface layer material 2 on the surface layer side of the wallpaper 3 sent to the inclined surface 12 b is cut and peeled by the rotating body 5.
[0021]
If the position of either one of the feed plate 10 and the feed roll 11 can be adjusted as necessary, the distance between them can be finely adjusted. There is an advantage that it can respond. Further, if any one of the feed mechanism 8 including the feed plate 10 and the feed roll 11 and the rotating body 5 are configured to be position-adjustable as required, the cutting peeling depth by the rotating body 5 can be adjusted. Since fine adjustment is possible, it is possible to cope with sheet-like laminates having various thicknesses, and there is an advantage that only a target layer can be cut and peeled with high accuracy. Furthermore, since the space | interval of these rotary bodies 5 and the feed mechanism 8 can be expanded, there exists an advantage that the wallpaper 3 can be easily set to this cutting and peeling apparatus 6. FIG.
[0022]
For example, the take-up roll 9 is arranged below the feed plate 10 so as to be able to wind up the wallpaper 3 after being peeled off and fed by the feed mechanism 8. The take-up mechanism is not limited to the take-up roll 9 as in this embodiment. For example, the take-up mechanism may be one that feeds a sheet-like laminate such as the wallpaper 3 without winding it. .
[0023]
Here, since the wallpaper 3 is often stored in a state of being wound in a roll shape, the raw material roll 3a in that state is used as the raw material roll 3a in the state of the cutting and peeling, etc. It may be arranged so as to be freely rotatable and fed between the feed plate 10 and the feed roll 11.
[0024]
Next, the operation of the cutting and peeling apparatus 6 configured as described above will be described.
First, the wallpaper 3 is pulled out from the raw material roll 3a in a state where the interval between the rotating body 5 and the feeding mechanism 8 is widened as necessary and the gap between the feeding plate 10 and the feeding roll 11 is widened. After inserting the edge part between 10 and the feed roll 11, these space | intervals are narrowed to such an extent that moderate pressure is added to the wallpaper 3. FIG. Next, when the feeding roll 11 is appropriately rotated to sufficiently pull out the end portion of the wallpaper 3 and is wound around the lower take-up roll 9, the setting of the wallpaper 3 is completed.
[0025]
In this embodiment, in order to cut and peel the surface layer material 2 made of the foamed vinyl chloride composition of the wallpaper 3, the surface layer material 2 is set on the feed plate 10 so that the surface layer material 2 faces upward. However, when the substrate 1 is cut and peeled, the substrate 1 may be set so that the substrate 1 faces upward.
[0026]
Then, the rotating body 5 is operated to rotate at high speed, and the position of the rotating body 5 or the feeding mechanism 8 is moved in a state where the feeding roll 11 and the take-up roll 9 are also operated and rotated to narrow the interval. For example, as shown in FIG. 3, the surface layer material 2 on the surface layer side of the wallpaper 3 is cut and peeled by the cutting blade 4 of the rotating body 5.
[0027]
Here, the distance between the tip 4a of the cutting blade 4 of the rotating body 5 rotating at high speed and the inclined surface 12b of the protrusion 12 of the feed plate 10 is substantially the same as the thickness T1 of the base material 1 of the wallpaper 3. If the fine adjustment is performed, the cutting peeling depth becomes substantially the same as the thickness T2 of the surface material 2, so that only the surface material 2 can be continuously cut and peeled along the longitudinal direction. In addition, in the case where the sheet-like laminate such as wallpaper 3 is composed of three or more layers, even when two or more of these layers are cut and peeled at the same time, fine adjustment is similarly performed according to their total thickness. That's fine.
[0028]
The wallpaper 3 after being cut and peeled as described above is almost the base material 1 remains, and is continuously wound up by the take-up roll 9. In addition, since the surface layer material 2 is cut and peeled into a powder form or the like by the rotating body 5, there is an advantage that the purity can be further improved by further separating the wind force if necessary.
[0029]
Thus, since at least one layer of the sheet-like laminate comprising the plurality of layers such as the wallpaper 3 is cut and peeled by the wide rotating body 5 in which the cutting blade 4 is provided on the outer peripheral surface 5a, this cutting and peeling is performed. The remaining layers can be easily separated from the remaining layers. Therefore, there is an advantage that these can be reused for other purposes without being disposed of, and resources can be effectively used.
[0030]
Further, as in this embodiment, the sheet-like laminate is made of a base material selected from the group consisting of paper, woven fabric, knitted fabric, non-woven fabric, and glass fiber mat, and a foamed and / or non-foamed synthetic resin. When at least the pattern forming layer is provided, there is an advantage that each layer such as an interior material of a building that has been conventionally disposed of in large quantities can be reused. In this case, when the base material 1 is made of paper and the pattern forming layer is a surface layer material 2 made of a foamed vinyl chloride composition, each layer such as wallpaper that has been conventionally discarded in large quantities is reused. There is an advantage that you can.
[0031]
Furthermore, when at least one layer of the sheet-like laminate such as the surface layer material 2 is continuously cut and peeled along the longitudinal direction by the cutting and peeling device 6, the layer to be cut and peeled and the remaining layers are separated. There is an advantage that separation can be performed efficiently and in a short time.
[0032]
In addition, when the cutting blade 4 is provided by spirally winding the sawtooth wire 7 around the outer peripheral surface 5a of the rotating body 5, the cutting efficiency is good. There is an advantage that it can respond to the body.
[0033]
The cutting blade 4 may be the flat blade 13 formed on the outer peripheral surface 5a of the rotating body 5 as shown in FIG. In this case, since the cutting and peeling can be performed more flatly, there is an advantage that the separation efficiency between the layer to be cut and peeled and the remaining layer becomes higher. Here, in the example shown in FIG. 5, the flat blade 13 is formed in parallel to the axial direction of the rotating body 5, but it is formed in a spiral shape or in a step with a predetermined width. May be.
[0034]
Further, as shown in FIG. 6, the cutting blade 4 may be provided by forming the cutting irregularities 14 on the outer peripheral surface 5a of the rotating body 5, and in this case, the cutting and peeling can be performed more finely. There is an advantage that the separation efficiency becomes higher. Here, the cutting irregularities 14 may be so-called filed irregularities formed on the outer peripheral surface 5a of the rotating body 5, or may be formed by attaching an abrasive or the like.
[0035]
As described above, the cutting and peeling apparatus 6 described in this embodiment is merely an example, and the configuration thereof is not particularly limited, and various conventional techniques can be used.
[0036]
【Example】
EXAMPLES Next, although an Example demonstrates this invention still in detail, this invention is not limited to the Example which concerns.
[0037]
As a sheet-like laminate, a wallpaper composed of a base material made of paper (flame retardant paper) and a surface layer material made of a foamed vinyl chloride composition (foaming ratio 3 times) (manufactured by Kanto Leather Co., Ltd., trade name “ Hotaka ") was used.
[0038]
A spreader (made by Nippon Spindle Manufacturing Co., Ltd., trade name “Super Opener”) was used as a cutting and peeling device, and the surface layer side of the wallpaper was cut and peeled. Moreover, the powdery substance produced by this cutting and peeling was applied to a wind power separator (made by Nippon Senki Co., Ltd., trade name “sealed circulation wind power sorter”) to obtain a powder of a surface material with high purity.
[0039]
The composition (weight percentage) of the powdery surface layer material after the wind separation obtained above was measured. The results are shown in Table 1 below.
[0040]
[Table 1]
Figure 0003687021
[0041]
【The invention's effect】
As described above, according to the first aspect of the present invention, at least one layer of the sheet-like laminate having a plurality of layers is cut and peeled by the rotating body provided with the cutting blade on the outer peripheral surface. Layers and remaining layers can be easily separated. Therefore, there is an advantage that these can be reused for other purposes without being disposed of, and resources can be effectively used. Further, at least one of the sheet-like laminates is provided by a cutting / peeling device including the rotating body, a feeding mechanism for feeding the sheet-like laminate to the rotating body side, and a take-off mechanism for taking up the sheet-like laminate after cutting and peeling. Since one layer is continuously cut and peeled along the longitudinal direction, there is an advantage that the layer to be cut and peeled and the remaining layers can be efficiently separated in a short time.
[0042]
According to invention of Claim 2 , the said sheet-like laminated body consists of a base material selected from the group which consists of paper, a textile fabric, a knitted fabric, a nonwoven fabric, and a glass fiber mat, and a foamed and / or non-foamed synthetic resin. Since at least the pattern forming layer is provided, there is an advantage that each layer such as an interior material of a building that has been conventionally disposed of in large quantities can be reused.
[0043]
According to invention of Claim 3 , since the said base material consists of paper and the said pattern formation layer is a surface layer material which consists of a foaming vinyl chloride type composition, each layer of wallpaper etc. which were discarded conventionally in large quantities There is an advantage that it can be reused.
[0044]
According to invention of Claim 4 , since the said cutting blade is provided by winding a serrated wire helically on the outer peripheral surface of the said rotary body, cutting efficiency is good, Therefore various sheet-like lamination | stacking There is an advantage that it can respond to the body.
[0045]
According to invention of Claim 5 , since the said cutting blade is a flat blade formed in the outer peripheral surface of the said rotary body, it can cut and peel more flatly, Therefore, the separation efficiency of the layer which carries out cutting and the remaining layer is more There is an advantage that it becomes higher.
[0046]
According to invention of Claim 6 , since the said cutting blade is provided by forming the unevenness | corrugation for cutting in the outer peripheral surface of the said rotary body, it can cut and peel more finely, Therefore The advantage that classification efficiency becomes higher. There is.
[0048]
According to the invention of claim 7, by leaving positioned adjustably configure one of the rotary body and the feeding mechanism, so the cutting peel depth by the rotary member was adjusted finely, various There is an advantage that it is possible to cope with a sheet-like laminate having a thickness and that only the target layer can be cut and peeled with high accuracy. Furthermore, since the space | interval of these rotary bodies and a feed mechanism can be expanded, there exists an advantage that a sheet-like laminated body, such as a wallpaper, can be easily set to this cutting and peeling apparatus.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory view of a cutting and peeling apparatus used in a method for peeling a layer of a laminate according to this embodiment.
2 is an enlarged cross-sectional view of a main part of the wallpaper of FIG.
3 is an enlarged cross-sectional view of a main part showing a state where a surface material layer is cut and peeled by the rotating body of FIG. 1;
4 is a schematic perspective view of the rotating body of FIG. 1;
FIG. 5 is a schematic perspective view showing another example of a rotating body.
FIG. 6 is a schematic perspective view showing another example of a rotating body.
[Explanation of symbols]
1 Base material 2 Surface layer material (pattern forming layer)
3 Wallpaper (sheet-like laminate)
4 Cutting Blade 5 Rotating Body 5a Outer Peripheral Surface 6 Cutting Peeling Device 7 Sawtooth Wire 8 Feeding Mechanism 9 Take-up Roll (Take-up Mechanism)
13 Flat blade 14 Unevenness for cutting

Claims (7)

複数層からなるシート状積層体の少なくとも１層を、切削刃を外周面に設けてなる回転体により切削剥離する積層体の層の剥離方法であって、
前記シート状積層体を、前記回転体の後方側に所定間隔を開けて配置した板状の送りプレートの前方側の上縁に設けられ、後方側の上面が円弧状に形成されかつ前方側が前記回転体に面する斜面となっている横断面が山状の突出部に密着するようにして下方へ送り出し、前記斜面に送られる前記シート状積層体の少なくとも１層を、前記シート状積層体の送り方向と同じ方向に回転する前記回転体により切削剥離する場合に、
前記回転体と、
前記送りプレート、及び、この送りプレートの上方に前記シート状積層体の厚さより小さい間隔を開けて配置されかつ前記斜面に送られる前記シート状積層体の表層側が前記回転体によって切削剥離されるように前記シート状積層体を前記突出部に密着するようにして下方へ送り出す送りロールから構成されて前記回転体側へ前記シート状積層体を送る送り機構と、
切削剥離後のシート状積層体を引き取る引取機構と、
を備えた切削剥離装置により、
前記シート状積層体の少なくとも１層をその長手方向に沿って連続的に切削剥離することを特徴とする積層体の層の剥離方法。A method for peeling a layer of a laminate, wherein at least one layer of a sheet-like laminate comprising a plurality of layers is cut and peeled by a rotating body provided with a cutting blade on an outer peripheral surface,
The sheet-like laminate is provided at the upper edge of the front side of a plate-like feed plate arranged at a predetermined interval on the rear side of the rotating body, the upper surface on the rear side is formed in an arc shape, and the front side is the side The cross section that is the slope facing the rotating body is sent downward so that the cross section is in close contact with the mountain-shaped protrusion, and at least one layer of the sheet-like laminate sent to the slope is transferred to the sheet-like laminate. When cutting and peeling by the rotating body rotating in the same direction as the feed direction ,
The rotating body;
The feeding plate and the surface layer side of the sheet-like laminate that is disposed above the feeding plate with a smaller interval than the thickness of the sheet-like laminate and fed to the inclined surface are cut and peeled by the rotating body. A feed mechanism configured to feed the sheet-like laminate to the rotating body side, the feed roll being configured to feed the sheet-like laminate to the lower portion so as to be in close contact with the protruding portion,
A take-off mechanism for taking off the sheet-like laminate after cutting and peeling;
With a cutting and peeling device equipped with
A method for peeling a layer of a laminate, wherein at least one layer of the sheet-like laminate is continuously cut and peeled along a longitudinal direction thereof . 前記シート状積層体が、紙、織物、編物、不織布、及びガラス繊維マットからなる群から選択される基材と、発泡及び／又は非発泡の合成樹脂からなる模様形成層とを少なくとも備えたことを特徴とする請求項１記載の積層体の層の剥離方法。 The sheet-like laminate comprises at least a substrate selected from the group consisting of paper, woven fabric, knitted fabric, non-woven fabric, and glass fiber mat, and a pattern forming layer made of foamed and / or non-foamed synthetic resin. The method for peeling a layer of a laminate according to claim 1. 前記基材が紙からなると共に、前記模様形成層が発泡塩化ビニル系組成物からなる表層材であることを特徴とする請求項２記載の積層体の層の剥離方法。 The method for peeling a layer of a laminate according to claim 2, wherein the base material is made of paper and the pattern forming layer is a surface layer material made of a foamed vinyl chloride composition . 前記切削刃が、前記回転体の外周面に鋸歯状ワイヤを螺旋状に巻回することにより設けられていることを特徴とする請求項１乃至３のいずれか記載の積層体の層の剥離方法。 4. The method for peeling a layer of a laminate according to claim 1 , wherein the cutting blade is provided by spirally winding a sawtooth wire around an outer peripheral surface of the rotating body. 5. . 前記切削刃が、前記回転体の外周面に形成した平刃であることを特徴とする請求項１乃至３のいずれか記載の積層体の層の剥離方法。 The method for peeling a layer of a laminate according to any one of claims 1 to 3, wherein the cutting blade is a flat blade formed on the outer peripheral surface of the rotating body . 前記切削刃が、前記回転体の外周面に切削用凹凸を形成することにより設けられていることを特徴とする請求項１乃至３のいずれか記載の積層体の層の剥離方法。 The method for peeling a layer of a laminate according to any one of claims 1 to 3 , wherein the cutting blade is provided by forming unevenness for cutting on an outer peripheral surface of the rotating body . 前記回転体と前記送り機構のいずれか一方を位置調整可能に構成しておくことによって、前記回転体による切削剥離深さを微調整可能としたことを特徴とする請求項１乃至６のいずれか記載の積層体の層の剥離方法。 By keeping positioned adjustably configure one of the rotary body and the feeding mechanism, any one of claims 1 to 6, characterized in that the cutting peel depth by the rotary member was adjusted finely The peeling method of the layer of the described laminated body.
JP35268797A 1997-12-22 1997-12-22 Method of peeling the layer of the laminate Expired - Fee Related JP3687021B2 (en)

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