JP2008274137A - Method for producing vinyl chloride-based resin expansion molded product - Google Patents

Method for producing vinyl chloride-based resin expansion molded product Download PDF

Info

Publication number
JP2008274137A
JP2008274137A JP2007120148A JP2007120148A JP2008274137A JP 2008274137 A JP2008274137 A JP 2008274137A JP 2007120148 A JP2007120148 A JP 2007120148A JP 2007120148 A JP2007120148 A JP 2007120148A JP 2008274137 A JP2008274137 A JP 2008274137A
Authority
JP
Japan
Prior art keywords
vinyl chloride
chloride resin
wallpaper
foamed
component
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.)
Pending
Application number
JP2007120148A
Other languages
Japanese (ja)
Inventor
Masami Takano
正美 高野
Yoshihiko Hashimoto
芳彦 橋本
Hiroshi Nabekura
弘 鍋倉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kaneka Corp
Original Assignee
Kaneka Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kaneka Corp filed Critical Kaneka Corp
Priority to JP2007120148A priority Critical patent/JP2008274137A/en
Publication of JP2008274137A publication Critical patent/JP2008274137A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vinyl chloride-based resin expansion molded product in which a waste material of expanded vinyl chloride-based resin wallpaper is pulverized and the separated expanded vinyl chloride resin component is then effectively utilized and recycled and to provide a method for producing the expansion molded product. <P>SOLUTION: The vinyl chloride-based resin expansion molded product can be produced as follows: the waste material of the expanded vinyl chloride-based resin wallpaper is pulverized using a shear pulverizer or an impact pulverizer so as to provide 1-25 mm size thereof and 100-20 pts.wt. of a dry separated and recovered expanded vinyl chloride-based resin component is then mixed with 0-80 pts.wt. of a vinyl chloride resin component recovered from vinyl chloride-based resin products other than the wallpaper. The resultant mixture is expanded by utilizing the un-decomposed material and/or residues of a chemical blowing agent contained in the recovered expanded vinyl chloride-based resin component. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、発泡塩化ビニル系壁紙の製造工程で発生する不具合品や端材などの廃材を、リサイクルしてなる塩化ビニル系樹脂発泡成形体に関する。 TECHNICAL FIELD The present invention relates to a vinyl chloride resin foam molded article obtained by recycling waste materials such as defective products and end materials generated in a manufacturing process of foamed vinyl chloride wallpaper.

基材の裏打ち紙の表面に合成樹脂をコーティング法またはカレンダー法などで被覆した合成樹脂壁紙が知られている。しかし、リフォームなど貼り替え時に発生する廃品、製造工程から発生する不具合品、デザインなどの変更品、長期在庫品の処分品など、発生する合成樹脂壁紙の廃材は、基材の裏打ち紙と被覆層の合成樹脂との分離が非常に難しいため、これら合成樹脂壁紙の廃材はリサイクルできず、大部分が焼却処理や埋立処理などで処理されている。特に塩化ビニル系樹脂壁紙の焼却処理の場合、焼却時に塩素ガスなどが発生することから焼却時の排ガス対策が必要であり、処理施設の建設費高騰、処理費用の高騰などで処理が進まない状況がある。また、埋立処理の場合も埋立用地の確保が難しいため処理が進まない状況は同じである。これらの問題から塩化ビニル系樹脂壁紙の廃材の処理が困難な状況に至っている。この課題を解決するために、塩化ビニル系樹脂壁紙のリサイクルについて様々な検討がなされ、リサイクル方法が開発されてきている。 A synthetic resin wallpaper is known in which the surface of a backing paper of a base material is coated with a synthetic resin by a coating method or a calendar method. However, waste materials of synthetic resin wallpaper, such as renovated items such as renovated items, defective products that occur during the manufacturing process, changed designs, disposal items for long-term stock, etc. Since it is very difficult to separate from the synthetic resin, waste materials of these synthetic resin wallpaper cannot be recycled, and most of them are treated by incineration or landfill treatment. In particular, in the case of incineration of vinyl chloride resin wallpaper, chlorine gas is generated at the time of incineration, so it is necessary to take measures against exhaust gas at the time of incineration, and the situation does not proceed due to soaring construction facility costs and soaring processing costs. There is. In the case of landfill processing, it is difficult to secure a landfill site, so the situation where processing does not proceed is the same. Due to these problems, it has become difficult to treat the waste material of the vinyl chloride resin wallpaper. In order to solve this problem, various studies have been made on the recycling of vinyl chloride resin wallpaper, and a recycling method has been developed.

例えば、塩化ビニル系樹脂壁紙の廃材のリサイクル方法として、基材の裏打ち紙が付着したままの塩化ビニル系樹脂壁紙を粉砕、若しくは加熱混練してペレット等に加工する方法が開示されている（特許文献１）。しかし、この方法では、塩化ビニル系樹脂に多くの紙が混入するため加工性と機械特性が劣り、発泡用途に使用した場合には発泡特性が劣る等使用用途が制限される問題がある。次に、基材の裏打ち紙が付着したままの塩化ビニル系樹脂壁紙を粉砕し１３０℃以上で熱処理した後、加熱混練してペレット等に加工する方法が開示されている（特許文献２参照。）。しかし、この方法では、塩化ビニル系樹脂に多くの基材の裏打ち紙が混入するため加工性と機械特性が劣り、発泡用途に使用した場合には発泡特性が劣る。更に、材料中に含有する化学発泡剤の未分解物及び／又は残渣を除去する方法が取られ、有効利用されずコストアップになる等の問題がある。次に、塩化ビニル系樹脂壁紙を粉砕機で粉砕した後、風力分離装置によって、基材の裏打ち紙の紙成分と被覆層の塩化ビニル系樹脂成分を分離し、回収された紙成分と塩化ビニル系樹脂成分を個々に使用する方法が開示されている（特許文献３参照。）。しかし、この方法では、塩化ビニル系樹脂壁紙の発泡・非発泡の区別がなく使用され、また、回収された塩化ビニル系樹脂成分の加工方法がカレンダー、ロールによるシート加工に制限されている点では、加工方法が狭くリサイクルの点から不十分である。
特開平０６−１１４８３８号公報 特開２００５−２８８９５２号公報 特開２００６−２７４１７１号公報 For example, as a method for recycling the waste material of vinyl chloride resin wallpaper, a method of pulverizing or heat kneading vinyl chloride resin wallpaper with the backing paper of the base material attached thereto to process into pellets or the like is disclosed (patent) Reference 1). However, in this method, since many papers are mixed in the vinyl chloride resin, workability and mechanical properties are inferior, and when used for foaming, there is a problem that the use is limited such as poor foaming properties. Next, a method is disclosed in which a vinyl chloride resin wallpaper with the backing paper of the base material adhered is crushed and heat-treated at 130 ° C. or higher, and then heat-kneaded and processed into pellets (see Patent Document 2). ). However, in this method, since many backing papers of the base material are mixed in the vinyl chloride resin, workability and mechanical properties are inferior, and when used for foaming, the foaming properties are inferior. Furthermore, there is a problem that a method of removing undecomposed products and / or residues of the chemical foaming agent contained in the material is used, and the cost is increased because the method is not used effectively. Next, after pulverizing the vinyl chloride resin wallpaper with a pulverizer, the paper component of the backing paper of the base material and the vinyl chloride resin component of the coating layer are separated by a wind separator, and the recovered paper component and vinyl chloride are separated. A method of using individual resin components is disclosed (see Patent Document 3). However, in this method, there is no distinction between foaming and non-foaming of vinyl chloride resin wallpaper, and the processing method of the recovered vinyl chloride resin component is limited to sheet processing with a calendar or roll. The processing method is narrow and insufficient from the viewpoint of recycling.
Japanese Patent Laid-Open No. 06-114838 Japanese Patent Laid-Open No. 2005-288952 JP 2006-274171 A

本発明が解決しようとする課題は、塩化ビニル系樹脂壁紙の廃材などの中でも、発泡塩化ビニル系樹脂壁紙から基材の裏打ち紙の紙成分と被覆層の発泡塩化ビニル系樹脂成分をそれぞれの素材の品質を維持し、高い精度で効率良く粉砕、分離、回収を行い、回収された発泡塩化ビニル系樹脂成分と壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂系成分を混合し、該発泡塩化ビニル系樹脂成分中に含まれる化学発泡剤の未分解物及び／又は残渣を利用して発泡させた塩化ビニル系樹脂発泡成形体及びその製造方法を提供することである。   The problem to be solved by the present invention is that, among the waste materials of vinyl chloride resin wallpaper, the paper component of the backing paper of the base material and the foamed vinyl chloride resin component of the coating layer from the foamed vinyl chloride resin wallpaper , Efficiently and accurately pulverizing, separating, and collecting the recovered foamed vinyl chloride resin component and the vinyl chloride resin component recovered from the waste material of vinyl chloride resin products other than wallpaper. An object of the present invention is to provide a vinyl chloride resin foamed molded article that is mixed and foamed by using an undecomposed product and / or residue of a chemical foaming agent contained in the foamed vinyl chloride resin component and a method for producing the same.

すなわち本発明は、発泡塩化ビニル系樹脂壁紙の廃材から乾式分離方式で回収された発泡塩化ビニル系樹脂成分１００〜２０重量部と壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂成分０〜８０重量部からなり、該発泡塩化ビニル系樹脂成分に含まれる化学発泡剤の未分解物及び/又は残渣を利用して発泡させる塩化ビニル系樹脂発泡成形体の製造方法である。 That is, the present invention relates to 100 to 20 parts by weight of the foamed vinyl chloride resin component recovered from the waste material of the foamed vinyl chloride resin wallpaper by a dry separation method and the vinyl chloride system recovered from the waste material of the vinyl chloride resin product other than the wallpaper. This is a method for producing a vinyl chloride resin foamed molded article comprising 0 to 80 parts by weight of a resin component and foaming using an undecomposed product and / or residue of a chemical foaming agent contained in the foamed vinyl chloride resin component.

前記発泡塩化ビニル系樹脂壁紙の廃材から乾式分離方式で回収された発泡塩化ビニル系樹脂成分と壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂成分を混合、ペレット化する際の溶融樹脂温度は１３５〜１５５℃とし、１７０〜１９０℃の溶融樹脂温度で多層押出成形、異形押出成形するのが好ましい。
また、前記発泡塩化ビニル系樹脂壁紙の廃材から回収された発泡塩化ビニル系樹脂成分中の紙成分含有量が６重量％以下であるのが好ましい。 When mixing and pelletizing the foamed vinyl chloride resin component recovered from the foamed vinyl chloride resin wallpaper waste material by dry separation and the vinyl chloride resin component recovered from the waste material of vinyl chloride resin products other than wallpaper The molten resin temperature of 135 to 155 ° C. is preferably multilayer extrusion molding or profile extrusion molding at a molten resin temperature of 170 to 190 ° C.
The paper component content in the foamed vinyl chloride resin component recovered from the waste material of the foamed vinyl chloride resin wallpaper is preferably 6% by weight or less.

更に、前記発泡塩化ビニル系樹脂壁紙の廃材から回収された発泡塩化ビニル系樹脂成分の乾式分離方式による回収方法が
Ａ）壁紙の粉砕の大きさを規制する、目開きが１ｍｍ以上２５ｍｍ以下のパンチングメタルまたは格子の目開きが１ｍｍ以上２５ｍｍ以下であるスクリーンを設置した衝撃粉砕機又はせん断式粉砕機により、発泡塩化ビニル系樹脂壁紙の廃材を粉砕する粉砕工程と、
Ｂ）前記壁紙粉砕工程で粉砕された発泡塩化ビニル系樹脂壁紙を分離装置により紙成分と発泡塩化ビニル系樹脂成分とに分離する乾式分離工程との２工程を含むことを特徴とすることもできる。 Furthermore, a method for recovering foamed vinyl chloride resin components recovered from the waste material of the foamed vinyl chloride resin wallpaper by a dry separation method is as follows: A) Punching with an opening of 1 mm or more and 25 mm or less that regulates the size of wallpaper crushing A crushing step of crushing the waste material of the foamed vinyl chloride resin wallpaper by an impact crusher or a shear crusher provided with a screen having a metal or lattice opening of 1 mm to 25 mm;
B) It may be characterized by including two steps of a dry separation step of separating the foamed vinyl chloride resin wallpaper pulverized in the wallpaper pulverization step into a paper component and a foamed vinyl chloride resin component by a separation device. .

前記分離工程で用いる分離装置は、略縦円筒形胴部の上部に真空吸引口を設け下部を漏斗状に形成するとともに該漏斗状部に空気補給口を設けた分離塔内に、略円形板を、その周囲に前記分離筒内壁との間に通気間隙が存するように略水平に支持し、前記略円形板上の略中心部に空気輸送管によって前記壁紙粉砕工程で粉砕された壁紙粉砕物を搬入し、該壁紙粉砕物中の発泡塩化ビニル系樹脂成分を前記略円形板の周縁部から落下させる一方、紙成分は、空気補給口から入って分離塔内を上昇する空気流に乗せて前記真空吸引口から吸引、排出するようにした風力分離装置であるのが好ましい   The separation device used in the separation step is a substantially circular plate in a separation tower in which a vacuum suction port is formed in the upper part of a substantially vertical cylindrical body part and a lower part is formed in a funnel shape and an air supply port is provided in the funnel part. Is pulverized in the wallpaper pulverization step by an air transport pipe at a substantially central portion on the substantially circular plate. And the foamed vinyl chloride resin component in the pulverized wallpaper is dropped from the peripheral edge of the substantially circular plate, while the paper component is placed on the air stream that enters from the air supply port and rises in the separation tower. It is preferable that the wind power separating device is adapted to suck and discharge from the vacuum suction port.

本発明によれば、基材裏打ち紙の表面に発泡塩化ビニル系樹脂を被覆した壁紙から高精度に分離回収した発泡塩化ビニル系樹脂成分と壁紙以外の塩化ビニル系樹脂製品の廃材から回収した塩化ビニル樹脂成分とを原料にして、該発泡塩化ビニル系樹脂成分中に含まれる化学発泡剤の未分解物及び/又は残渣を利用して発泡させることにより塩化ビニル系樹脂発泡成形体を製造することができ、廃壁紙の再資源化の用途を拡大することができる。 According to the present invention, the foamed vinyl chloride resin component separated and recovered with high accuracy from the wallpaper coated with the foamed vinyl chloride resin on the surface of the substrate backing paper and the chloride recovered from the waste material of the vinyl chloride resin product other than the wallpaper. A vinyl chloride resin foam molded article is produced by using a vinyl resin component as a raw material and foaming using an undecomposed product and / or residue of a chemical foaming agent contained in the foamed vinyl chloride resin component. Can be used to expand the application of recycling waste wallpaper.

本発明にかかる塩化ビニル系樹脂発泡成形体は、発泡塩化ビニル系樹脂壁紙の廃材から、Ａ）壁紙の粉砕の大きさを規制する、目開きが１ｍｍ以上２５ｍｍ以下のパンチングメタルまたは格子の目開きが１ｍｍ以上２５ｍｍ以下であるスクリーンを設置した衝撃粉砕機により、発泡塩化ビニル系樹脂壁紙の廃材を粉砕する粉砕工程と、Ｂ）前記壁紙粉砕工程で粉砕された壁紙粉砕物を分離装置により紙成分と発泡塩化ビニル系樹脂成分とに分離する分離工程との２工程を含む方法により乾式回収され、紙成分含有量が６重量％以下、好ましくは４重量％以下の発泡塩化ビニル系樹脂成分と、壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂成分を混合し該発泡塩化ビニル系樹脂成分中に含まれる化学発泡剤の未分解物及び/又は残渣を利用して発泡させた塩化ビニル系樹脂発泡成形体である。   The vinyl chloride resin foam molded article according to the present invention is a punched metal or lattice opening having a mesh opening of 1 mm or more and 25 mm or less, which regulates the size of the pulverization of the wallpaper from the waste material of the foamed vinyl chloride resin wallpaper. A crushing step of crushing the waste material of the foamed vinyl chloride resin wallpaper with an impact crusher equipped with a screen having a diameter of 1 mm to 25 mm; and B) a paper component pulverized in the wallpaper crushing step using a separator. And a foaming vinyl chloride resin component having a paper component content of 6% by weight or less, preferably 4% by weight or less. Undecomposed product of chemical foaming agent mixed with vinyl chloride resin component recovered from waste materials of vinyl chloride resin products other than wallpaper and contained in the foamed vinyl chloride resin component Beauty / or vinyl chloride-based resin foam molded article by using foamed residue.

前記Ａ）工程およびＢ）工程を含み、発泡塩化ビニル系樹脂壁紙から紙成分含有量が６重量％以下の発泡塩化ビニル系樹脂成分を回収する方法について、添付した図面に示す実施態様に基づき、さらに詳細に説明する。但し、これらは、本発明における発泡塩化ビニル系樹脂壁紙の廃材からの発泡塩化ビニル系樹脂成分の乾式回収方法の概略を、単に例示および説明するためのものにすぎず、本発明は、これらによりなんら制限されるものではない。   A method for recovering a foamed vinyl chloride resin component having a paper component content of 6% by weight or less from the foamed vinyl chloride resin wallpaper, comprising the steps A) and B), based on the embodiment shown in the attached drawings, Further details will be described. However, these are merely for illustrating and explaining the outline of the dry recovery method of the foamed vinyl chloride resin component from the waste material of the foamed vinyl chloride resin wallpaper in the present invention. There are no restrictions.

本発明に使用される発泡塩化ビニル系樹脂壁紙は、たとえば、建築物の内装に用いられる発泡塩化ビニル系樹脂壁紙であり、リフォームなど貼り替え時に発生する廃品、製造工程から発生する不具合品、デザイン等の変更品、長期在庫品の処分品など発生する発泡塩化ビニル系樹脂壁紙が主なものであるが、発泡塩化ビニル系樹脂壁紙に含有する化学発泡剤の未分解物及び／又は残渣を利用するため、製造工程から発生する不具合品の廃材が好ましい。これらの発泡塩化ビニル系樹脂壁紙は、基材の裏打ち紙の表層に発泡塩化ビニル系樹脂成分を被覆したものである。前記基材の裏打ち紙は、難燃紙（パルプ主体のシートをスルファミン酸グアニジン、燐酸グアニジンなどの難燃剤で処理したシート）、水酸化アルミニウムや水酸化マグネシウムなどの無機質剤およびガラス繊維を混抄した無機質紙などであってもよい。また、被覆層は、発泡塩化ビニル系樹脂成分からなり、さらに、耐スクラッチ性、耐薬品性そして耐汚染性などを向上させるため、フッ素樹脂コーティングを施したり、ＰＭＭＡ樹脂フィルムなどを積層して耐光性を向上させたものであってもよい。   The foamed vinyl chloride resin wallpaper used in the present invention is, for example, a foamed vinyl chloride resin wallpaper used for the interior of a building. Mainly used foamed vinyl chloride resin wallpaper, such as modified products such as long-term stock, etc., but uses undecomposed products and / or residues of chemical foaming agents contained in foamed vinyl chloride resin wallpaper Therefore, a waste material of defective products generated from the manufacturing process is preferable. These foamed vinyl chloride resin wallpapers are those in which the foamed vinyl chloride resin component is coated on the surface of the backing paper of the base material. The backing paper of the base material is a flame retardant paper (sheet obtained by treating a pulp-based sheet with a flame retardant such as guanidine sulfamate or guanidine phosphate), an inorganic agent such as aluminum hydroxide or magnesium hydroxide, and glass fiber. It may be inorganic paper. In addition, the coating layer is made of a foamed vinyl chloride resin component. In addition, in order to improve scratch resistance, chemical resistance, and contamination resistance, the coating layer is coated with a fluorine resin or laminated with a PMMA resin film. It may be improved.

本発明において発泡塩化ビニル系樹脂壁紙の廃材から発泡塩化ビニル系樹脂成分を回収する方法の詳細について、図１〜図４に基づき説明する。図１は、発泡塩化ビニル系樹脂壁紙の廃材が粉砕工程で粉砕された後の紙成分と発泡塩化ビニル系樹脂成分とからなる発泡塩化ビニル系樹脂壁紙粉砕物（符号１）を、分離工程で分離した発泡塩化ビニル系樹脂成分（不定形発泡塩化ビニル系樹脂成分）（符号２）、および繊維状の紙成分（符号３）の概念図である。また、図２は、発泡塩化ビニル系樹脂壁紙の廃材からの紙成分および発泡塩化ビニル系樹脂成分の分離回収方法を実施するための装置構成を示す模式図である。   The details of the method for recovering the foamed vinyl chloride resin component from the waste material of the foamed vinyl chloride resin wallpaper in the present invention will be described with reference to FIGS. FIG. 1 shows a foamed vinyl chloride resin wallpaper pulverized product (reference numeral 1) comprising a paper component and a foamed vinyl chloride resin component after the waste material of the foamed vinyl chloride resin wallpaper is pulverized in the pulverization process. It is the conceptual diagram of the isolate | separated foamed vinyl chloride-type resin component (indefinite form foamed vinyl chloride-type resin component) (code | symbol 2), and a fibrous paper component (code | symbol 3). FIG. 2 is a schematic diagram showing an apparatus configuration for carrying out the method for separating and recovering the paper component and the foamed vinyl chloride resin component from the waste material of the foamed vinyl chloride resin wallpaper.

図２に示す装置は、発泡塩化ビニル系樹脂壁紙の廃材を衝撃粉砕機４で粉砕して、樹脂被覆層の粉砕物である発泡塩化ビニル系樹脂成分２と基材の裏打ち紙の粉砕物である紙成分３との混在物である発泡塩化ビニル系樹脂壁紙の粉砕物１を得る粉砕工程と、粉砕機４で粉砕した発泡塩化ビニル系樹脂壁紙の粉砕物１を空気輸送管２３を介してブロアー６により分離装置７に送り、樹脂被覆層の粉砕物である発泡塩化ビニル系樹脂成分２を分離装置７の下方に設けた発泡塩化ビニル系樹脂受け槽８に受け、一方、基材の裏打ち紙の粉砕物である紙成分３は、分離装置７の上部から排出する分離工程とを備える。さらに、図２に示すように、分離装置７に、振動フルイ（シフター）、回転式シフター、往復シフターなどの一般に使用されるシフターを連結して、分離装置７で分離回収後の発泡塩化ビニル
系樹脂成分２中に残存する紙成分３をさらに分離することで、分離精度と処理量
を高めることもできる。 The apparatus shown in FIG. 2 is a crushed product of foamed vinyl chloride resin component 2 which is a pulverized product of a resin coating layer and a backing paper of a base material, by pulverizing the waste material of the foamed vinyl chloride resin wallpaper with an impact pulverizer 4. A pulverization step for obtaining a pulverized product 1 of foamed vinyl chloride resin wallpaper which is a mixture with a certain paper component 3, and a pulverized product 1 of foamed vinyl chloride resin wallpaper pulverized by a pulverizer 4 through an air transport pipe 23. The foamed vinyl chloride resin component 2 which is a pulverized product of the resin coating layer is received by a blower 6 in a foamed vinyl chloride resin receiving tank 8 provided below the separator 7, while the backing of the substrate is provided. The paper component 3 which is a pulverized paper is provided with a separation step of discharging from the upper part of the separation device 7. Further, as shown in FIG. 2, a commonly used shifter such as a vibration sieve (shifter), a rotary shifter, a reciprocating shifter, or the like is connected to the separator 7, and the foamed vinyl chloride system separated and recovered by the separator 7 is used. By further separating the paper component 3 remaining in the resin component 2, it is possible to increase the separation accuracy and the processing amount.

発泡塩化ビニル系樹脂壁紙の素材である紙成分と発泡塩化ビニル系樹脂成分とを分離して回収する上で、粉砕工程に用いる粉砕機の選定は重要である。
すなわち、発泡塩化ビニル系樹脂壁紙においては、基材の裏打ち紙と、被覆層の発泡塩化ビニル系樹脂が良く接着していて剥離が非常に困難である。
発泡塩化ビニル系樹脂壁紙から基材の裏打ち紙の紙成分と被覆層の発泡塩化ビニル系樹脂成分とを精度良く剥離して回収するためには、壁紙に適度の衝撃力を与えて粉砕するとともに基材の裏打ち紙の紙繊維を解し、被覆層の発泡塩化ビニル系樹脂と剥離することが大切である。 In separating and recovering the paper component and the foamed vinyl chloride resin component which are the materials of the foamed vinyl chloride resin wallpaper, it is important to select a pulverizer used in the pulverization process.
That is, in the foamed vinyl chloride resin wallpaper, the backing paper of the base material and the foamed vinyl chloride resin of the coating layer are well adhered and are very difficult to peel off.
In order to exfoliate and recover the paper component of the backing paper of the base material and the foamed vinyl chloride resin component of the coating layer from the foamed vinyl chloride resin wallpaper, the wallpaper is pulverized with an appropriate impact force. It is important to release the paper fiber of the backing paper of the base material and peel it off from the foamed vinyl chloride resin of the coating layer.

発泡塩化ビニル系樹脂壁紙の基材の裏打ち紙と被覆層の発泡塩化ビニル系樹脂を剥離する方法として、粉砕機が使用される。一般に使用されている剪断粉砕機や衝撃粉砕機が用いられるが、スイングハンマータイプなどの衝撃粉砕機４を用いるのがより好ましい。衝撃粉砕機は、回転ハンマーが発泡塩化ビニル系樹脂壁紙に衝撃力を与え、発泡塩化ビニル系樹脂壁紙を粉砕すると同時に基材の裏打ち紙成分の紙繊維を解し、柔らかい綿状に開繊した状態にすることができる。すなわち、発泡塩化ビニル系樹脂壁紙に適度の衝撃力を与え、基材の裏打ち紙成分の紙繊維が柔らかい綿状に開繊するとともに被覆層の発泡塩化ビニル系樹脂と剥離する。開繊した柔らかい綿状の紙成分は、後述する風力分離装置内の上昇気流に乗り排出され、分離、回収することができる。一方、被覆層の発泡塩化ビニル系樹脂は、衝撃粉砕機で粉砕されて基材の裏打ち紙から剥離し、発泡塩化ビニル系樹脂成分２として、後述する風力分離装置内を降下して回収される。   A pulverizer is used as a method for separating the backing paper of the base material of the foamed vinyl chloride resin wallpaper from the foamed vinyl chloride resin of the coating layer. Generally used shear pulverizers and impact pulverizers are used, but it is more preferable to use an impact pulverizer 4 such as a swing hammer type. In the impact crusher, the rotating hammer gives impact force to the foamed vinyl chloride resin wallpaper, crushes the foamed vinyl chloride resin wallpaper, and at the same time, breaks the paper fiber of the backing paper component of the base material and opens it into a soft cotton shape Can be in a state. That is, an appropriate impact force is applied to the foamed vinyl chloride resin wallpaper, and the paper fiber of the backing paper component of the base material is opened into a soft cotton shape and peeled off from the foamed vinyl chloride resin of the coating layer. The opened soft cotton-like paper component is exhausted and discharged on an ascending air current in a wind power separating apparatus, which will be described later, and can be separated and recovered. On the other hand, the foamed vinyl chloride resin of the coating layer is pulverized by an impact pulverizer and peeled off from the backing paper of the base material, and is recovered as a foamed vinyl chloride resin component 2 by descending inside a wind power separator described later. .

また、本発明においては、衝撃粉砕機４に、発泡塩化ビニル系樹脂壁紙の粉砕物の大きさを規制する目開きが１ｍｍ〜２５ｍｍのパンチングメタルまたは格子の目開きが１ｍｍ〜２５ｍｍのスクリーン５を設置する。衝撃粉砕機４に目開きが２５ｍｍ以下のパンチングメタルやスクリーン５を設けることで、発泡塩化ビニル系樹脂壁紙の粉砕物のサイズが小さく、発泡塩化ビニル系樹脂壁紙基材の裏打ち紙成分の紙繊維が充分に解れ、被覆層の発泡塩化ビニル系樹脂との剥離が良く、分離工程において、被覆層の発泡塩化ビニル系樹脂粉砕物（発泡塩化ビニル系樹脂成分２）に基材の裏打ち紙の繊維（紙成分３）が付着したまま排出、回収されることを防止できる。
このように回収された発泡塩化ビニル系樹脂粉砕物は、紙成分の混入が少なく、回収発泡塩化ビニル系樹脂成分の使用できる用途が大きく拡がる。 In the present invention, the impact pulverizer 4 is provided with a punching metal having a mesh opening of 1 mm to 25 mm or a screen 5 having a grid opening of 1 mm to 25 mm, which regulates the size of the pulverized vinyl chloride resin wallpaper. Install. By providing punching metal or screen 5 with an opening of 25 mm or less in the impact pulverizer 4, the size of the pulverized product of the foamed vinyl chloride resin wallpaper is small, and the paper fiber of the backing paper component of the foamed vinyl chloride resin wallpaper substrate The coating layer is sufficiently peeled off from the foamed vinyl chloride resin, and in the separation process, the foamed vinyl chloride resin of the coating layer (foamed vinyl chloride resin component 2) is coated with the fibers of the backing paper of the base material. It is possible to prevent the paper component 3 from being discharged and collected while being attached.
The recovered foamed vinyl chloride-based resin pulverized product thus collected contains less paper components, greatly expanding the applications for which the recovered expanded vinyl chloride-based resin component can be used.

また、分離工程で用いる分離装置も特に限定はされず、フルイ、吹き上げ式風力分離機、縦型風力分離機、横型風力分離機、傾斜型風力分離機、密閉式風力分離機、サイクロン、乾式遠心分離機、乾式比重分離機などの一般的な分離装置を使用することも可能である。しかし、図２の７に示す風力分離装置を用いることが好ましい。この風力分離装置は、略縦円筒形胴部の上部に真空吸引口を設け下部を漏斗状に形成するとともに、該漏斗状部に空気補給口を設けた分離塔内に、略円形板が、その周囲に前記分離筒内壁との間に通気間隙が存するように略水平に支持された構造となっている。前記略円形板上の略中心部に空気輸送管によって前記壁紙粉砕工程で粉砕された発泡塩化ビニル系樹脂壁紙の粉砕物を搬入するとともに、前記真空吸引口から吸引することにより、該壁紙粉砕物中の発泡塩化ビニル系樹脂成分を前記略円形板の周縁部から落下させ空気補給口から排出し、一方、紙成分を空気補給口から入って分離塔内を上昇する空気流に乗せて前記真空吸引口から吸引、排出することにより、発泡塩化ビニル系樹脂成分と紙成分を効率的に分離することができる。   In addition, the separation apparatus used in the separation process is not particularly limited, and is a screen, wind-up wind separator, vertical wind separator, horizontal wind separator, inclined wind separator, sealed wind separator, cyclone, dry centrifuge. It is also possible to use a general separation device such as a separator or a dry specific gravity separator. However, it is preferable to use the wind power separating apparatus shown in FIG. This wind power separating apparatus is provided with a vacuum suction port in the upper part of a substantially vertical cylindrical body and a lower part is formed in a funnel shape, and a substantially circular plate is provided in a separation tower in which an air supply port is provided in the funnel part. The structure is supported substantially horizontally so that there is a ventilation gap between the inner wall of the separation cylinder and the periphery thereof. By carrying the pulverized material of the foamed vinyl chloride resin wallpaper pulverized in the wallpaper pulverization step by an air transport pipe into the substantially central portion of the substantially circular plate and sucking it from the vacuum suction port, The foamed vinyl chloride resin component is dropped from the peripheral edge of the substantially circular plate and discharged from the air replenishing port, while the paper component enters the air replenishing port and rides on the air stream rising in the separation tower, the vacuum By sucking and discharging from the suction port, the foamed vinyl chloride resin component and the paper component can be efficiently separated.

発泡塩化ビニル系樹脂壁紙を上記の衝撃粉砕機４を用いて粉砕した発泡塩化ビニル系樹脂壁紙の粉砕物１を、一般に使用される公知の多段式の円形振動フルイ（シフター）、回転式シフター、往復シフターなどを用いて分離した場合、フルイの目開き（網目）を順次小さく調整して、フルイをパスした被覆層の発泡塩化ビニル系樹脂中には、基材の裏打ち紙の紙成分の混入が防止され、発泡塩化ビニル系樹脂成分が回収できる。しかし、フルイ上には、基材の裏打ち紙の紙成分を主体にした粉砕物が残り、解れた紙成分の紙繊維に多量の被覆層の発泡塩化ビニル系樹脂粉砕物を取り込み発泡塩化ビニル系樹脂成分が混入するおそれがある。
また、シフターを単独で用いた場合、発泡塩化ビニル系樹脂壁紙の粉砕物１から、基材の裏打ち紙の紙成分３と被覆層の発泡塩化ビニル系樹脂の発泡塩化ビニル系樹脂成分２との両成分を高い精度で分離、回収することが困難である。 A foamed vinyl chloride resin wallpaper pulverized product 1 obtained by pulverizing a foamed vinyl chloride resin wallpaper using the impact pulverizer 4 described above is used as a commonly used multistage circular vibration sieve (shifter), rotary shifter, When separated using a reciprocating shifter, etc., the opening of the sieve (mesh) is adjusted in order, and the foamed vinyl chloride resin of the coating layer that passes the sieve contains the paper component of the backing paper of the substrate. And the foamed vinyl chloride resin component can be recovered. However, a pulverized product mainly composed of the paper component of the backing paper of the base material remains on the sieve, and a large amount of the pulverized foamed vinyl chloride resin of the coating layer is taken into the paper fiber of the undissolved paper component. There is a possibility that the resin component is mixed.
Further, when the shifter is used alone, from the pulverized product 1 of the foamed vinyl chloride resin wallpaper, the paper component 3 of the backing paper of the base material and the foamed vinyl chloride resin component 2 of the foamed vinyl chloride resin of the coating layer It is difficult to separate and recover both components with high accuracy.

そこで、分離工程で使用する分離装置としては、例えば、図４に示す風力分離装置７を用いることが好ましい。この図４に示す風力分離装置７は、略縦円筒形 の胴部１８ａの上部１８ｂを略円錐形キャップ状に形成し、その略中心部から上方に 向かって、ブロアー１５によって排気する排出口１９を設け、胴部１８ａの下部 １８ｃは漏斗状に形成し、その略中心部から下方に向かって空気補給口２０を設け た分離塔１８を備えている。また、分離筒１８の内部下方には、略略円形の板２１を、その周囲に、分離筒１８の内壁との間に通気間隙２２が存するように、略円形板支持具２４により略水平に支持し、略円形板２１の上面中心部に、粉砕工程の粉砕機４にて粉砕された発泡塩化ビニル系樹脂壁紙の粉砕物１をブロアー６により空気輸送して分離塔１８内に搬入する空気輸送管２３を設けてある。   Therefore, it is preferable to use, for example, a wind separation device 7 shown in FIG. 4 as the separation device used in the separation step. In the wind power separating apparatus 7 shown in FIG. 4, an upper portion 18b of a substantially vertical cylindrical body portion 18a is formed in a substantially conical cap shape, and a discharge port 19 for exhausting air by a blower 15 upward from a substantially central portion thereof. The lower part 18c of the body part 18a is formed in a funnel shape, and is provided with a separation tower 18 provided with an air supply port 20 from its substantially central part downward. In addition, a substantially circular plate 21 is supported substantially horizontally below the inside of the separation cylinder 18 by a substantially circular plate support 24 so that a ventilation gap 22 exists around the plate 21 around the inner wall of the separation cylinder 18. Then, the foamed vinyl chloride resin wallpaper pulverized product 1 pulverized by the pulverizer 4 in the pulverization step is pneumatically transported by the blower 6 to the central portion of the upper surface of the substantially circular plate 21 and is carried into the separation tower 18. A tube 23 is provided.

この風力分離装置７においては、ブロアー１５によって排出口１９を経て分離 塔１８から排出する風量は、空気輸送管２３から円形板２１の上面の略中心部に搬 入された発泡塩化ビニル系樹脂壁紙の粉砕物１が、分離塔１８内を流動し相対的に重成分である被覆層の塩化ビニル系樹脂粉砕物（発泡塩化ビニル系樹脂成分２）は略円形板２１の周囲に設けた通気間隙２２から降下して分離塔下部１８ｃに設けた空気補給口２０から排出する。一方、相対的に軽成分である基材の綿状に解れた紙成分の繊維（紙成分３）は、ブロアー１５により排気される分離塔１８内部を上昇する空気流に乗せて分離塔上部１８ｂの排出口１９から排出するよう、ブロアー６により空気輸送管２３を経て分離塔１８内に送られる風量と同等量または空気輸送管２３から分離塔１８内に送られる風量より排気口１９からの排出量のほうを若干多く調整する。   In this wind power separating device 7, the volume of air discharged from the separation tower 18 through the discharge port 19 by the blower 15 is the foamed vinyl chloride resin wallpaper carried into the substantially central portion of the upper surface of the circular plate 21 from the air transport pipe 23. The crushed material 1 of the coating layer flows in the separation tower 18 and is a relatively heavy component. The pulverized vinyl chloride resin of the coating layer (foamed vinyl chloride resin component 2) is a ventilation gap provided around the substantially circular plate 21. It descends from 22 and is discharged from the air supply port 20 provided in the separation tower lower part 18c. On the other hand, the fiber (paper component 3) of the paper component that has been unwound into a cotton base material, which is a relatively light component, is placed on the rising air flow inside the separation tower 18 that is exhausted by the blower 15, and the separation tower upper portion 18b. The exhaust air from the exhaust port 19 is discharged from the air blower 6 through the air transport pipe 23 through the air transport pipe 23 into the separation tower 18 or from the air transport pipe 23 through the air transport pipe 23 into the separation tower 18. Adjust the amount slightly more.

分離塔１８は、略縦円筒形胴部１８ａの高さ（Ｈ）と横方向の直径（Ｄ）との比（Ｈ／Ｄ）が０．５≦Ｈ／Ｄ≦３であることが好ましい。分離塔１８の高さ（Ｈ）と横方向の直径（Ｄ）との比（Ｈ／Ｄ）を０．５以上とすることで、分離塔１８内での発泡塩化ビニル系樹脂壁紙の粉砕物１の流動が大きく発泡塩化ビニル系樹脂成分２と紙成分３が良く分離され、回収発泡塩化ビニル系樹脂成分中への紙成分の混入が少なく、回収紙成分中への発泡塩化ビニル系樹脂成分の混入も少ない
。また、分離塔１８の高さ（Ｈ）と横方向の直径（Ｄ）との比（Ｈ／Ｄ）を３以下とすることで、軽成分である基材の綿状に解れた紙成分３の排出量が多く、紙成分が分離塔内に滞留してマット状あるいは玉状などに集合した紙成分の塊が生じ分離塔下部空気補給口２０から発泡塩化ビニル系樹脂成分と混在して排出され分離精度の低下を招くといったことがなく、また、紙成分３を分離塔上部排出口１９から排出させるために大容量の送風量を発生する大型ブロアー設備を設置する必要もなく、装置がコンパクトとなり経済的である。 In the separation tower 18, the ratio (H / D) of the height (H) of the substantially vertical cylindrical body 18 a to the diameter (D) in the horizontal direction is preferably 0.5 ≦ H / D ≦ 3. By making the ratio (H / D) of the height (H) of the separation tower 18 and the diameter (D) in the lateral direction to be 0.5 or more, the pulverized product of the foamed vinyl chloride resin wallpaper in the separation tower 18 The flow of 1 is large and the foamed vinyl chloride resin component 2 and the paper component 3 are well separated, and there is little mixing of the paper component into the recovered foamed vinyl chloride resin component, and the expanded vinyl chloride resin component in the recovered paper component There is little mixing of. Further, by setting the ratio (H / D) of the height (H) of the separation tower 18 to the diameter (D) in the transverse direction to 3 or less, the paper component 3 which is unwound into a fluffy base material which is a light component The amount of water discharged is large, and the paper component stays in the separation tower to form a lump of paper components gathered in a mat or ball shape. In addition, the separation accuracy does not decrease, and it is not necessary to install a large blower facility that generates a large volume of air flow for discharging the paper component 3 from the upper outlet 19 of the separation tower, and the apparatus is compact. It is economical.

また、略円形板２１を略水平に支持する支持具２４は、ネジ軸２４ａなどにより略円形板２１を上下動可能に支持して、略円形板２１の外周縁と分離塔１８の内壁面との間の通気間隙２２の幅を調整可能であることが好ましい。   Further, the support 24 that supports the substantially circular plate 21 substantially horizontally supports the substantially circular plate 21 by a screw shaft 24a or the like so as to be movable up and down, and the outer peripheral edge of the substantially circular plate 21 and the inner wall surface of the separation tower 18 It is preferable that the width of the air gap 22 can be adjusted.

風力分離装置７により紙成分３と分離された発泡塩化ビニル系樹脂成分２は、分離塔下部１８ｃに設けた空気補給口２０から、その下方に設置された発泡塩化ビニル系樹脂受け槽８に収容される。一方、ブロアー１５により排出口１９から排出された紙成分は、ブロアー１５に接続された空気輸送管２５からサイクロン分級器１６を経て紙成分回収受け槽１７内に回収される。   The foamed vinyl chloride resin component 2 separated from the paper component 3 by the wind separator 7 is accommodated in the foamed vinyl chloride resin receiving tank 8 installed below the air supply port 20 provided in the lower part 18c of the separation tower. Is done. On the other hand, the paper component discharged from the discharge port 19 by the blower 15 is collected from the air transport pipe 25 connected to the blower 15 through the cyclone classifier 16 into the paper component collection receiving tank 17.

なお、前記発泡塩化ビニル系樹脂受け槽８に収容された発泡塩化ビニル系樹脂成分２は、さらに風力分離装置７に振動フルイ（シフター）、回転式シフター、往復シフターなどの一般に使用されるシフターを連結して、紙成分３との分離精度と処理量を高めることができる。たとえば、図２に示す装置では、発泡塩化ビニル系樹脂受け槽８からブロアー９により空気輸送管２６およびサイクロン分級器１０を経て振動シフター１１へ送られ、フルイ（金網）１２により残存する紙成分３がさらに分離されて振動シフター１１下方に設置された発泡塩化ビニル系樹脂成分回収受け槽１３に回収される。一方、振動シフター１１のフルイ１１上に残った発泡塩化ビニル系樹脂成分と紙成分との混合物は、混合物受け槽１４に回収される。   The foamed vinyl chloride resin component 2 accommodated in the foamed vinyl chloride resin receiving tank 8 is further provided with a commonly used shifter such as a vibration screen (shifter), a rotary shifter, a reciprocating shifter, etc. By connecting, the separation accuracy from the paper component 3 and the processing amount can be increased. For example, in the apparatus shown in FIG. 2, the paper component 3 that is sent from the foamed vinyl chloride resin receiving tank 8 to the vibration shifter 11 via the air transport pipe 26 and the cyclone classifier 10 by the blower 9 and remains by the sieve (wire net) 12. Is further separated and recovered in a foamed vinyl chloride resin component recovery receiving tank 13 installed below the vibration shifter 11. On the other hand, the mixture of the foamed vinyl chloride resin component and the paper component remaining on the sieve 11 of the vibration shifter 11 is collected in the mixture receiving tank 14.

前記のような衝撃粉砕機４を用いた分離工程により壁紙を粉砕した発泡塩化ビニル系樹脂壁紙の粉砕物１を、分離工程において、風力分離装置７などの分離装置により、発泡塩化ビニル系樹脂成分２と紙成分３とを分離精度よく分離回収することができるが、前記風力分離装置７のような分離装置、さらには、図３に示すように、壁紙を衝撃粉砕機などの粉砕機４により粉砕（１次粉砕）した発泡塩化ビニル系樹脂壁紙の粉砕物（１次粉砕物）を、第１の風力分離装置７（１次分離）により、基材の裏打ち紙の紙成分３と被覆層の発泡塩化ビニル系樹脂の発泡塩化ビニル系樹脂成分２に分離して発泡塩化ビニル系樹脂受け槽８に回収した発泡塩化ビニル系樹脂成分２を、再度、衝撃粉砕機などの第２の粉砕機４Ｂに投入して粉砕（２次粉砕）し、この２次粉砕物を、さらに第２の風力分離装置７Ｂ（２次分離）に搬入して、基材の裏打ち紙の紙成分３と被覆層の発泡塩化ビニル系樹脂の発泡塩化ビニル系樹脂成分２の分離精度をさらに改善することもできる。
また、図示しないが、壁紙を衝撃粉砕機などの粉砕機４により粉砕した発泡塩化ビニル系樹脂壁紙の粉砕物１を風力分離装置７などの第１の分離装置（１次分離）により紙成分３と発泡塩化ビニル系樹脂成分２に分離して発泡塩化ビニル系樹脂受け槽８に回収した発泡塩化ビニル系樹脂成分２を、再度粉砕せずに、風力分離装置７からなる第２の分離装置（２次分離）に供給して、紙成分３と発泡塩化ビニル系樹脂成分２の分離精度を改善することも出来る。このように粉砕工程と分離工程を直列にあるいは、並列に複数工程繋げることで、壁紙を、基材の裏打ち紙の紙成分３と発泡塩化ビニル系樹脂被覆層の発泡塩化ビニル系樹脂成分２とに高精度に、かつ多量に分離処理を可能にすることができる。 The pulverized product 1 of the foamed vinyl chloride resin wallpaper obtained by pulverizing the wallpaper in the separation process using the impact pulverizer 4 as described above is separated into the foamed vinyl chloride resin component by the separation device such as the wind separation device 7 in the separation process. 2 and the paper component 3 can be separated and recovered with high separation accuracy. However, as shown in FIG. 3, the wallpaper is removed by a pulverizer 4 such as an impact pulverizer. The pulverized product (primary pulverized product) of the foamed vinyl chloride resin wallpaper that has been pulverized (primary pulverized) is subjected to the paper component 3 and the coating layer of the backing paper of the base material by the first wind separator 7 (primary separation). The foamed vinyl chloride resin component 2 separated into the foamed vinyl chloride resin component 2 and recovered in the foamed vinyl chloride resin receiving tank 8 is again used as a second crusher such as an impact crusher. Put into 4B and crush (secondary crush) The secondary pulverized product is further carried into the second wind power separating device 7B (secondary separation), and the paper component 3 of the backing paper of the base material and the foamed vinyl chloride resin of the foamed vinyl chloride resin of the coating layer The separation accuracy of component 2 can be further improved.
Although not shown, the pulverized product 1 of the foamed vinyl chloride resin wallpaper obtained by pulverizing the wallpaper with a pulverizer 4 such as an impact pulverizer is used to separate the paper component 3 with a first separation device (primary separation) such as a wind separator 7. And the foamed vinyl chloride resin component 2 separated into the foamed vinyl chloride resin component 2 and collected in the foamed vinyl chloride resin receiver tank 8 without being pulverized again, the second separator comprising the wind power separator 7 ( (Secondary separation), the separation accuracy of the paper component 3 and the foamed vinyl chloride resin component 2 can be improved. In this way, the pulverization step and the separation step are connected in series or in parallel, so that the wallpaper is made of the paper component 3 of the backing paper of the base material and the foamed vinyl chloride resin component 2 of the foamed vinyl chloride resin coating layer. In addition, separation processing can be performed with high accuracy and in large quantities.

なお、上記のようにして、発泡塩化ビニル系樹脂壁紙から分離回収された発泡塩化ビニル系樹脂成分は、例えば、フレコンに入れ、放置して置くと、塊になり、非常に取り出しにくく、輸送、計量が困難となる。そこで、上記のようにして粉砕工程および分離工程を経て発泡塩化ビニル系樹脂壁紙から分離回収された発泡塩化ビニル系樹脂成分２の粉体を、攪拌機により撹拌して、その嵩比重を０．２〜０．４の範囲内に調整して粉体特性を改善し、取扱を容易にすることも好ましい。   In addition, as described above, the foamed vinyl chloride resin component separated and recovered from the foamed vinyl chloride resin wallpaper is, for example, put in a flexible container and left to stand, becomes a lump, very difficult to take out, transport, Measurement becomes difficult. Therefore, the foamed vinyl chloride resin component 2 powder separated and recovered from the foamed vinyl chloride resin wallpaper through the pulverization step and the separation step as described above is stirred with a stirrer, and the bulk specific gravity is 0.2. It is also preferable to improve the powder characteristics by adjusting within the range of ˜0.4 to facilitate handling.

前記発泡塩化ビニル系樹脂成分２を攪拌して粉体特性を改善するための攪拌機としては、ヘンシェルミキサー、スーパーミキサー、リボンミキサー又は万能ミキサーが入手し易く好ましく、これらのうちでも、攪拌時に発泡塩化ビニル系樹脂成分が剪断発熱するヘンシェルミキサー、スーパーミキサーまたは万能ミキサーがより好ましい。これらヘンシェルミキサー、スーパーミキサーまたは万能ミキサーにより発泡塩化ビニル系樹脂成分２を攪拌してその粉体特性を改善する際には、これら攪拌機内に発泡塩化ビニル系樹脂成分を投入後、投入された内部の樹脂温度が１００〜１３０℃になるまで撹拌して、嵩比重が０．２〜０．４の範囲になるようにすることが好ましい。この際、樹脂温度を早く上げるために、ジャケットを蒸気などで加熱することもできる。加熱後は、ジャケットに冷水を入れるか、または間欠に低速で撹拌して樹脂を冷却するのが好ましい。リボンミキサーの場合には、発熱が少なく、ジャケットを加熱して内部の樹脂温度が１００〜１３０℃になり、かつ嵩比重が０．２〜０．４の範囲になるように調整することがより好ましい。   As a stirrer for stirring the foamed vinyl chloride resin component 2 to improve the powder characteristics, a Henschel mixer, a super mixer, a ribbon mixer or a universal mixer is easily available, and among these, foaming chloride is used during stirring. A Henschel mixer, a super mixer or a universal mixer in which the vinyl resin component generates shear heat is more preferable. When stirring the foamed vinyl chloride resin component 2 with these Henschel mixer, super mixer or universal mixer to improve the powder characteristics, the foamed vinyl chloride resin component is introduced into these agitators and then the inside It is preferable to stir until the resin temperature becomes 100 to 130 ° C. so that the bulk specific gravity is in the range of 0.2 to 0.4. At this time, in order to increase the resin temperature quickly, the jacket can be heated with steam or the like. After the heating, it is preferable to cool the resin by adding cold water to the jacket or by intermittently stirring at low speed. In the case of a ribbon mixer, it is more preferable to adjust the heat so that the jacket is heated and the internal resin temperature is 100 to 130 ° C. and the bulk specific gravity is in the range of 0.2 to 0.4. preferable.

本発明では、上記のようにして発泡塩化ビニル系樹脂壁紙から乾式回収された発泡塩化ビニル系樹脂成分と壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂成分を混合した材料に加工性やその他の要求性能を付与するため、（メタ）アクリル酸エステル系加工性改良剤、熱可塑性樹脂、可塑剤、安定剤、滑剤、充填剤、難燃剤、紫外線吸収剤、カーボンブラック等の着色剤、発泡助剤、帯電防止剤、導電性付与剤、分散剤、抗菌剤、防カビ剤、離型剤などの添加剤を添加することができる。また、高い発泡倍率が要求される場合には、新たに発泡剤を添加することも可能である。   In the present invention, a material obtained by mixing the foamed vinyl chloride resin component dry-collected from the foamed vinyl chloride resin wallpaper as described above and the vinyl chloride resin component recovered from the waste material of the vinyl chloride resin product other than the wallpaper. (Meth) acrylate ester processability improver, thermoplastic resin, plasticizer, stabilizer, lubricant, filler, flame retardant, UV absorber, carbon black, etc. Additives such as coloring agents, foaming aids, antistatic agents, conductivity-imparting agents, dispersants, antibacterial agents, fungicides, and mold release agents can be added. In addition, when a high expansion ratio is required, a foaming agent can be newly added.

壁紙以外の塩化ビニル系樹脂製品の廃材としては、硬質塩化ビニル系樹脂製品の廃材と軟質塩化ビニル系樹脂製品の廃材がある。硬質塩化ビニル系樹脂製品の廃材の場合にはこれから回収された塩化ビニル系樹脂に可塑剤を添加する必要があるが、可塑剤を樹脂に均一に吸収させるために事前に加熱混練する必要があり、余計な加工コストがかかり好ましくない。
一方、軟質系塩化ビニル系樹脂製品の廃材としては塩化ビニル系樹脂電線、塩化ビニル系樹脂タイルカーペット、塩化ビニル系樹脂コイルマット、塩化ビニル系樹脂シャワーカーテン、塩化ビニル系樹脂アコーデオンカーテン、塩化ビニル系樹脂テーブルクロス、塩化ビニル系樹脂クッションフロアー、塩化ビニル系樹脂フロアタイル、塩化ビニル系樹脂タフテッドカーペット、塩化ビニル系樹脂自動車モール材、塩化ビニル系樹脂自動車チェンジブーツ、塩化ビニル系樹脂自動車アームレスト、塩化ビニル系樹脂自動車トリム、塩化ビニル系樹脂自動車アシストグリップ、塩化ビニル系樹脂自動車サイドモール、塩化ビニル系樹脂自動車カーペット、塩化ビニル系樹脂遮水シート、塩化ビニル系樹脂袋、塩化ビニル系樹脂手袋、塩化ビニル系樹脂ステップ材、塩化ビニル系樹脂ホース、塩化ビニル系樹脂医療用チューブ、塩化ビニル系樹脂医療用血液バッグ、塩化ビニル系樹脂手摺り、塩化ビニル系樹脂ガスケット、塩化ビニル系樹脂農ビフィルムなどがあり、２種以上混合しても良い。
前記各種塩化ビニル系樹脂製品からの塩化ビニル系樹脂成分の回収方法には特に限定されるものではないが、公知の回収方法で紙、布、金属、ガラス、塩化ビニル系樹脂以外の樹脂などを含まない塩化ビニル系樹脂成分が使用できる。また、発泡塩化ビニル系樹脂成分と混合使用するため、前記各種塩化ビニル系樹脂製品から回収された塩化ビニル系樹脂成分は粉砕していることが好ましい。 As waste materials of vinyl chloride resin products other than wallpaper, there are waste materials of hard vinyl chloride resin products and soft vinyl chloride resin products. In the case of waste materials of hard vinyl chloride resin products, it is necessary to add a plasticizer to the vinyl chloride resin recovered from this, but it is necessary to heat and knead in advance in order to uniformly absorb the plasticizer into the resin This is not preferable because it requires extra processing costs.
On the other hand, waste materials of soft vinyl chloride resin products include vinyl chloride resin wires, vinyl chloride resin tile carpets, vinyl chloride resin coil mats, vinyl chloride resin shower curtains, vinyl chloride resin accordion curtains, vinyl chloride resins Resin table cloth, vinyl chloride resin cushion floor, vinyl chloride resin floor tile, vinyl chloride resin tufted carpet, vinyl chloride resin automobile molding materials, vinyl chloride resin automobile change boots, vinyl chloride resin automobile armrest, chloride Vinyl resin automobile trim, vinyl chloride resin automobile assist grip, vinyl chloride resin automobile side molding, vinyl chloride resin automobile carpet, vinyl chloride resin waterproof sheet, vinyl chloride resin bag, vinyl chloride resin gloves, chloride vinyl Resin step material, vinyl chloride resin hose, vinyl chloride resin medical tube, vinyl chloride resin medical blood bag, vinyl chloride resin handrail, vinyl chloride resin gasket, vinyl chloride resin agricultural bi-film, etc. Two or more kinds may be mixed.
The method for recovering vinyl chloride resin components from the various vinyl chloride resin products is not particularly limited. However, paper, cloth, metal, glass, resins other than vinyl chloride resins, etc. can be used by known recovery methods. A vinyl chloride resin component not contained can be used. Moreover, since it mixes with a foaming vinyl chloride resin component, it is preferable that the vinyl chloride resin component collect | recovered from the said various vinyl chloride resin products is grind | pulverized.

発泡塩化ビニル系樹脂壁紙の廃材から乾式分離回収された発泡塩化ビニル系樹脂成分と壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂成分を混合、ペレット化する際の溶融樹脂温度は１３５〜１５５℃とし、１７０〜１９０℃の溶融樹脂温度で押出成形するのが好ましい。ペレット化する際の溶融樹脂温度が１３５℃以下では樹脂の溶融混合が不十分となり、１５５℃を超えると該発泡塩化ビニル系樹脂成分に残存する化学発泡剤の未分解物及び/又は残渣が分解、揮散し始めるため成形品の発泡倍率が低下する。また、成形時の溶融樹脂温度が１７０℃より低いと発泡が不十分となり発泡倍率が低下し、１９０℃より高いと成形品の表面不良やヤケが生じるため好ましくない。   Molten resin when mixing and pelletizing foamed vinyl chloride resin component dry-separated from the waste material of foamed vinyl chloride resin wallpaper and vinyl chloride resin component recovered from waste material of vinyl chloride resin products other than wallpaper The temperature is set to 135 to 155 ° C, and extrusion molding is preferably performed at a molten resin temperature of 170 to 190 ° C. When the temperature of the molten resin at the time of pelletization is 135 ° C. or lower, the resin is insufficiently melt-mixed, and when it exceeds 155 ° C., the undecomposed product and / or residue of the chemical foaming agent remaining in the foamed vinyl chloride resin component is decomposed. The foaming ratio of the molded product decreases because it starts to evaporate. Further, if the molten resin temperature at the time of molding is lower than 170 ° C., foaming is insufficient and the expansion ratio is lowered, and if it is higher than 190 ° C., surface defects and burns of the molded product are not preferable.

また、前記発泡塩化ビニル系樹脂壁紙の廃材から乾式分離回収された発泡塩化ビニル系樹脂成分と壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂成分を混合した本発明の発泡塩化ビニル系樹脂組成物は、一般の発泡塩化ビニル系樹脂製品に使用可能である。
優れた発泡特性の特徴により軽量化と衝撃吸収性および押出し成形性を活かして電線、ケーブル、コーナーガード材、自動車モール材、ガスケット、電線保護材、ステップ材、巾木材などが好ましく、それら部材の中間層の原料として使用することができる。 In addition, the foamed vinyl chloride resin component obtained by dry separation and recovery from the waste material of the foamed vinyl chloride resin wallpaper is mixed with the vinyl chloride resin component recovered from the waste material of the vinyl chloride resin product other than the wallpaper. The vinyl chloride resin composition can be used for general foamed vinyl chloride resin products.
Wires, cables, corner guard materials, automobile molding materials, gaskets, wire protection materials, step materials, width timber, etc. are preferred by taking advantage of light weight, shock absorption and extrudability due to the excellent foaming characteristics. It can be used as a raw material for the intermediate layer.

発泡塩化ビニル系樹脂壁紙から回収された発泡塩化ビニル系樹脂成分と壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂成分を混合する場合、リボンブレンダー、万能ミキサー、スーパーミキサー、ヘンシェルミキサー、タンブラーなどいずれを用いて行うことが出来る。更に、前期混合材料はペレット化が好ましく、加圧ニーダー、バンバリーミキサー、ロール、造粒機、押出機タイプの１軸混練機や２軸混練機、水冷式冷却層、空冷式冷却層、ペレタイザーなどから２種以上組み合わせてペレット化することが出来る。
なお、発泡塩化ビニル系樹脂壁紙から回収された発泡塩化ビニル系樹脂成分と壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂成分の混合物をペレット化する場合、回収された発泡塩化ビニル系樹脂成分中の化学発泡剤の未分解物及び／又は残渣を分解させないようにするため、ペレット化時の材料温度は化学発泡剤の分解温度より低いことが好ましい。また、押出機タイプの混練機を使用する場合は、揮発成分を除去するのに有効とされているベント引きは使用しない方が好ましい。 When mixing foamed vinyl chloride resin component recovered from foamed vinyl chloride resin wallpaper and vinyl chloride resin component recovered from waste material of vinyl chloride resin products other than wallpaper, ribbon blender, universal mixer, super mixer, It can be performed using a Henschel mixer, tumbler, or the like. Furthermore, the mixed material is preferably pelletized, such as a pressure kneader, Banbury mixer, roll, granulator, extruder type single-screw kneader or twin-screw kneader, water-cooled cooling layer, air-cooled cooling layer, pelletizer, etc. 2 or more types can be combined into pellets.
When pelletizing a mixture of foamed vinyl chloride resin components recovered from foamed vinyl chloride resin wallpaper and vinyl chloride resin components recovered from waste materials of vinyl chloride resin products other than wallpaper, the recovered foam In order not to decompose the undecomposed product and / or residue of the chemical foaming agent in the vinyl chloride resin component, the material temperature during pelletization is preferably lower than the decomposition temperature of the chemical foaming agent. Further, when an extruder type kneader is used, it is preferable not to use venting which is effective for removing volatile components.

発泡塩化ビニル系樹脂壁紙の廃材から乾式分離回収された発泡塩化ビニル系樹脂成分と壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂成分との割合は、壁紙のリサイクル性や得られる発泡塩化ビニル系樹脂組成物およびリサイクル品の特性・用途から、１００／０〜２０／８０が好ましい。
このような割合で、得られる塩化ビニル系樹脂発泡成形体における紙成分含有量は６重量％以下、好ましくは４重量％以下の範囲に容易に調整することができ、優れた均一発泡性や押出し成形性および品質特性を有した良好な塩化ビニル系樹脂発泡成形体を得ることができる。 The ratio of the foamed vinyl chloride resin component dry-separated from the waste material of the foamed vinyl chloride resin wallpaper to the vinyl chloride resin component recovered from the waste material of the vinyl chloride resin product other than the wallpaper is the recyclability of the wallpaper and 100/0 to 20/80 is preferable from the characteristics / uses of the obtained foamed vinyl chloride resin composition and recycled products.
At such a ratio, the content of the paper component in the obtained vinyl chloride resin foam molded article can be easily adjusted to a range of 6% by weight or less, preferably 4% by weight or less, and excellent uniform foaming properties and extrusion A good vinyl chloride resin foam molded article having moldability and quality characteristics can be obtained.

なお、本発明の塩化ビニル系樹脂発泡成形体には、使用用途の要求性能や成形加工に合わすため、更にバージンの塩化ビニル系樹脂や添加剤を添加することが出来る。添加剤として、（メタ）アクリル酸エステル系加工性改良剤やその他の熱可塑性樹脂、例えば、塩素化ポリエチレン、ＥＶＡ、ＡＢＳ、ＭＢＳ、ＮＢＲ等を単独あるいは２種以上あわせて添加しても良い。
またジ−２−エチルヘキシルフタレート（ＤＯＰ）、ジ−イソノニルフタレート（ＤＩＮＰ）、ジ−イソデシルフタレート（ＤＩＤＰ）、ジ−ウンデシルフタレート（ＤＵＰ）、リン酸エステル系、トリメリット酸エステル、ピロメリット酸エステル、ポリエステル系、エポキシ化大豆油などの可塑剤を、単独または２種類以上併せて使用することができる。また、リン系安定剤、有機錫系安定剤、Ｐｂ系安定剤、ハイドロタルサイト、複合系のＢａ-Ｚｎ系安定剤、複合系のＣａ-Ｚｎ系安定剤などの安定剤を単独または２種類以上併せて使用することが好ましい。さらに、ステアリン酸カルシウム、ステアリン酸バリウム、ステアリン酸亜鉛、ラウリン酸カルシウム、ラウリン酸バリウム、ラウリン酸亜鉛、ステアリン酸鉛など金属石鹸や流動パラフィン、シリコンオイル、ポリエチレン系、ＥＢＳ等のアミド系などの滑剤を単独または２種類以上併せて使用することが好ましい。
さらに必要に応じて、通常良く知られた、炭酸カルシウム、焼成クレー、タルク、マイカ等の無機充填剤、水酸化マグネシウム、水酸化アルミニウム、三酸化アンチモン、硼酸亜鉛等の難燃剤、紫外線吸収剤、カーボンブラック等の着色剤、発泡助剤、帯電防止剤、導電性付与剤、分散剤、抗菌剤、防カビ剤、離型剤などの添加剤を単独または２種類以上併せて使用することが出来る。また、高い発泡倍率が要求される場合には、新たに発泡剤を添加することも可能である。 The vinyl chloride resin foam molded article of the present invention may further contain virgin vinyl chloride resin and additives in order to meet the required performance of the intended use and the molding process. As an additive, a (meth) acrylic ester-based processability improver and other thermoplastic resins such as chlorinated polyethylene, EVA, ABS, MBS, NBR, etc. may be added singly or in combination.
Di-2-ethylhexyl phthalate (DOP), di-isononyl phthalate (DINP), di-isodecyl phthalate (DIDP), di-undecyl phthalate (DUP), phosphoric acid ester, trimellitic acid ester, pyromellitic Plasticizers such as acid esters, polyesters, and epoxidized soybean oil can be used alone or in combination of two or more. In addition, one or two kinds of stabilizers such as phosphorus stabilizer, organotin stabilizer, Pb stabilizer, hydrotalcite, composite Ba—Zn stabilizer, composite Ca—Zn stabilizer, etc. It is preferable to use together. In addition, metal soaps such as calcium stearate, barium stearate, zinc stearate, calcium laurate, barium laurate, zinc laurate, lead stearate, and other amides such as liquid paraffin, silicone oil, polyethylene, and EBS are used alone. Or it is preferable to use 2 or more types together.
Further, as required, usually well-known inorganic fillers such as calcium carbonate, calcined clay, talc, mica, flame retardants such as magnesium hydroxide, aluminum hydroxide, antimony trioxide, zinc borate, ultraviolet absorbers, Colorants such as carbon black, foaming aids, antistatic agents, conductivity-imparting agents, dispersants, antibacterial agents, antifungal agents, mold release agents and the like can be used alone or in combination of two or more. . In addition, when a high expansion ratio is required, a foaming agent can be newly added.

以下に実施例によりさらに詳細に説明するが、これにより本発明が限定されるものではない。
（発泡塩化ビニル系樹脂壁紙からの発泡塩化ビニル系樹脂成分と紙成分との分離）
（分離１）
工程不良品の発泡塩化ビニル系樹脂壁紙（塩化ビニル系樹脂の比重１．５６）の廃材から、図２、図４に示した装置および工程により、発泡塩化ビニル系樹脂成分と紙成分とを分離回収した。目開きが５ｍｍのスクリーン５を装着した衝撃粉砕機（尾上製作所製）４に供給して発泡塩化ビニル系樹脂壁紙を粉砕し、分離装置７の分離塔１８（図４に示す）の縦円筒形胴部１８ａの高さ（Ｈ）と横方向の直径（Ｄ）との比（Ｈ／Ｄ）が１．２であり、紙成分が分離塔上部から排出されるよう、ブロアー６の風量よりブロアー１５の風量を若干高めに調整した風力分離装置７に発泡塩化ビニル系樹脂壁紙を供給した。軽成分である紙成分はサイクロン分級器１６を介して紙成分回収槽１７に回収した。重成分である発泡塩化ビニル系樹脂成分は、分離塔下部１８ｃの空気補給口２０から排出して発泡塩化
ビニル系樹脂成分受け槽８に回収し、発泡塩化ビニル系樹脂成分に紛れて移動した紙成分を目開きが５ｍｍのフルイ１２を装着した振動シフター１１にて分別し、発泡塩化ビニル系樹脂成分回収受け槽１３に回収した。振動シフター１１で除去した紙成分は、解れた紙繊維に取り込まれた発泡塩化ビニル系樹脂粉砕片を含む発泡塩化ビニル系樹脂成分と紙成分の混合物で混合物受け槽１４に回収した。 Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereby.
(Separation of foamed vinyl chloride resin component and paper component from foamed vinyl chloride resin wallpaper)
(Separation 1)
Separation of foamed vinyl chloride resin component and paper component from waste materials of poorly processed foamed vinyl chloride resin wallpaper (specific gravity of vinyl chloride resin 1.56) using the equipment and process shown in Figs. It was collected. It is supplied to an impact pulverizer (manufactured by Onoe Seisakusho) 4 equipped with a screen 5 having a mesh opening of 5 mm to pulverize the foamed vinyl chloride resin wallpaper, and the vertical cylindrical shape of the separation tower 18 (shown in FIG. 4) of the separation device 7 The ratio (H / D) of the height (H) of the body portion 18a to the diameter (D) in the lateral direction is 1.2, and the blower is blown from the air volume of the blower 6 so that the paper component is discharged from the upper part of the separation tower. The foamed vinyl chloride resin wallpaper was supplied to the wind power separator 7 in which the air volume of 15 was adjusted to be slightly higher. The paper component, which is a light component, was recovered in the paper component recovery tank 17 via the cyclone classifier 16. The foamed vinyl chloride resin component, which is a heavy component, is discharged from the air replenishment port 20 at the lower part 18c of the separation tower, recovered in the foamed vinyl chloride resin component receiving tank 8, and moved into the foamed vinyl chloride resin component. The components were separated by a vibration shifter 11 equipped with a sieve 12 having an opening of 5 mm, and recovered in a foamed vinyl chloride resin component recovery receiving tank 13. The paper component removed by the vibration shifter 11 was recovered in the mixture receiving tank 14 as a mixture of the foamed vinyl chloride resin component and the paper component including the foamed vinyl chloride resin crushed pieces taken into the undissolved paper fibers.

回収した各成分の重量比率は、発泡塩化ビニル系樹脂成分回収受け槽１３に回収した発泡塩化ビニル系樹脂成分（回収樹脂１）７２．８重量％、紙成分回収受け槽１７に回収した紙成分が１６．５重量％、混合物受け槽１４に回収した発泡塩化ビニル系樹脂系成分と紙成分の混合物は１０．７重量％であった。また、発泡塩化ビニル系樹脂成分回収槽１３に回収した発泡塩化ビニル系樹脂成分（回収樹脂１）をテトラヒドロフランに溶解後、目開き２００メッシュの金網でろ過して発泡塩化ビニル系樹脂成分中に含まれる紙成分を回収した。回収した紙成分に塩酸処理を施し、壁紙成分中に含まれる添加剤である炭酸カルシウム分を除去した後、乾燥して秤量、回収発泡塩化ビニル系樹脂成分中に含まれる紙成分量を算出したところ３．６重量％であった。   The weight ratio of each recovered component is 72.8% by weight of the expanded vinyl chloride resin component (collected resin 1) recovered in the expanded vinyl chloride resin component recovery receiving tank 13, and the paper component recovered in the paper component recovery receiving tank 17. 16.5% by weight, and the mixture of the foamed vinyl chloride resin component and the paper component recovered in the mixture receiving tank 14 was 10.7% by weight. In addition, the foamed vinyl chloride resin component (collected resin 1) recovered in the foamed vinyl chloride resin component recovery tank 13 is dissolved in tetrahydrofuran, and then filtered through a 200-mesh wire mesh to be contained in the foamed vinyl chloride resin component. Collected paper components. The recovered paper component was treated with hydrochloric acid to remove calcium carbonate, which is an additive contained in the wallpaper component, then dried and weighed, and the amount of paper component contained in the recovered foamed vinyl chloride resin component was calculated. However, it was 3.6% by weight.

（分離２）
分離１に用いたと同じ種類の壁紙から図３、図４に示す装置および工程により、発泡塩化ビニル系樹脂系樹脂成分と紙成分とを分離回収した。目開きが８ｍｍのスクリーン５を装着した衝撃粉砕機（尾上製作所製）４に供給して発泡塩化ビニル系樹脂壁紙を粉砕し、分離装置７の分離塔１８（図４）の縦円筒形胴部１８ａの高さ（Ｈ）と横方向の直径（Ｄ）との比（Ｈ／Ｄ）が１．２であり、紙成分が分離塔上部から排出されるようブロアー６の風量よりブロアー１５の風量を若干高めに調整した風力分離装置７に発泡塩化ビニル系樹脂壁紙を供給した。紙成分はサイクロン１６を介して紙成分回収受け槽１７に回収した。重成分である発泡塩化ビニル系樹脂成分は発泡塩化ビニル系樹脂成分受け槽８に受けた。受け槽８に回収した発泡塩化ビニル系樹脂成分を目開きが３ｍｍのスクリーン５Ｂを装着した衝撃粉砕機（尾上製作所製）４Ｂに投入して再度粉砕して分離装置７Ｂの分離塔１８の円筒形胴部１８ａの高さ（Ｈ）と横方向の直径（Ｄ）との比（Ｈ／Ｄ）が１．２であり、紙成分が分離塔上部１８ｂから排出される様ブロアー６Ｂの風量よりブロアー１５Ｂの風量を若干高めに調整した風力分離装置７Ｂに供給した。紙成分は回収受け槽１７Ｂに回収し、発泡塩化ビニル系樹脂成分は、受け槽８Ｂ、ブロアー９Ｂ、サイクロン１０Ｂ、目開きが５ｍｍのフルイを装着した振動シフター１１を経由して発泡塩化ビニル系樹脂成分回収受け槽１３に回収した。 (Separation 2)
The foamed vinyl chloride resin resin component and the paper component were separated and recovered from the same type of wallpaper used for Separation 1 by the apparatus and process shown in FIGS. It is supplied to an impact pulverizer (manufactured by Onoe Seisakusho) 4 equipped with a screen 5 having an opening of 8 mm to pulverize the foamed vinyl chloride resin wallpaper, and the vertical cylindrical body of the separation tower 18 (FIG. 4) of the separation device 7 The ratio (H / D) of the height (H) of 18a to the diameter (D) in the lateral direction is 1.2, and the air volume of the blower 15 is higher than the air volume of the blower 6 so that the paper component is discharged from the upper part of the separation tower. The foamed vinyl chloride resin wallpaper was supplied to the wind power separating device 7 adjusted to be slightly higher. The paper component was recovered in the paper component recovery receiving tank 17 via the cyclone 16. The foamed vinyl chloride resin component, which is a heavy component, was received in the foamed vinyl chloride resin component receiving tank 8. The foamed vinyl chloride resin component recovered in the receiving tank 8 is put into an impact pulverizer (manufactured by Onoe Seisakusho) 4B equipped with a screen 5B having a mesh opening of 3 mm and pulverized again to form the cylindrical shape of the separation tower 18 of the separation device 7B. The ratio (H / D) of the height (H) of the body portion 18a to the diameter (D) in the lateral direction is 1.2, and the air blower 6B is used to blow out the paper component from the separation tower upper portion 18b. The air flow of 15B was supplied to a wind power separating device 7B adjusted to be slightly higher. The paper component is collected in the collection receiving tank 17B, and the foamed vinyl chloride resin component is foamed vinyl chloride resin via the receiving tank 8B, the blower 9B, the cyclone 10B, and the vibration shifter 11 equipped with a sieve having an opening of 5 mm. It recovered in the component recovery receiving tank 13.

紙成分回収受け槽１７に回収の紙成分合計量は１３．１重量％、紙成分回収受
け槽１７Ｂに回収の紙成分合計量は６．２重量％、発泡塩化ビニル系樹脂成分回収受け槽１３に回収した発泡塩化ビニル系樹脂成分の回収量（回収樹脂２）は７６．５重量％、混合物受け槽１４に回収した振動シフター１１で分別後の紙成分と発泡塩化ビニル系樹脂成分との混合物は４．２重量％であった。また、（回収樹脂と同様にして回収発泡塩化ビニル系樹脂成分（回収樹脂２）に含まれた紙成分を測定したところ、回収発泡塩化ビニル系樹脂成分に含まれた紙成分は２．０重量％であった。 The total amount of paper components recovered in the paper component recovery receiving tank 17 is 13.1% by weight, the total amount of paper components recovered in the paper component recovery receiving tank 17B is 6.2% by weight, and the expanded vinyl chloride resin component recovery receiving tank 13 The recovered amount of the foamed vinyl chloride resin component recovered in (7) was 76.5% by weight, and the mixture of the paper component and the foamed vinyl chloride resin component separated by the vibration shifter 11 recovered in the mixture receiving tank 14 Was 4.2% by weight. Moreover, when the paper component contained in the recovered foamed vinyl chloride resin component (recovered resin 2) was measured in the same manner as in the recovered resin, the paper component contained in the recovered foamed vinyl chloride resin component was 2.0 wt. %Met.

（分離３）
分離１に用いたと同じ種類の壁紙から図２、図４に示す装置および工程により、発泡塩化ビニル系樹脂成分と紙成分とを分離回収した。目開きが３０ｍｍのスクリーン５を装着した衝撃粉砕機（尾上製作所製）４に供給して壁紙を粉砕し、分離装置７の分離塔１８の縦円筒形胴部１８ａの（図４）の高さ（Ｈ）と横方向の直径（Ｄ）との比（Ｈ／Ｄ）が１．２であり、紙成分が分離塔上部から排出されるようブロアー６の風量よりブロアー１５の風量を若干高めに調整した風力分離装置７に壁紙粉砕物を供給し、（分離１）と同様に分離した。振動シフター１１のフルイ１２として目開き３０ｍｍのものを装着した。 (Separation 3)
The foamed vinyl chloride resin component and the paper component were separated and recovered from the same type of wallpaper used for Separation 1 by the apparatus and process shown in FIGS. It is supplied to an impact pulverizer (manufactured by Onoe Seisakusho) 4 equipped with a screen 5 having a mesh opening of 30 mm to pulverize the wallpaper, and the height of the vertical cylindrical body 18a of the separation tower 18 of the separation device 7 (FIG. 4) The ratio (H / D) of (H) to the transverse diameter (D) is 1.2, and the air volume of the blower 15 is slightly higher than the air volume of the blower 6 so that the paper component is discharged from the upper part of the separation tower. The pulverized wallpaper was supplied to the adjusted wind power separator 7 and separated in the same manner as (Separation 1). A sieve 12 having a mesh opening size of 30 mm was mounted as the vibration shifter 11.

回収した各成分の重量比率は、発泡塩化ビニル系樹脂成分回収受け槽１３に回収した発泡塩化ビニル系樹脂成分（回収樹脂３）４４．７重量％、紙成分回収槽１７に回収した紙成分が５．８重量％、混合物受け槽１４に回収した発泡塩化ビニル系樹脂成分と紙成分の混合物は４９．５重量％であった。   The weight ratio of each recovered component is 44.7% by weight of the foamed vinyl chloride resin component (collected resin 3) recovered in the foamed vinyl chloride resin component recovery receiving tank 13, and the paper component recovered in the paper component recovery tank 17 is The mixture of the foamed vinyl chloride resin component and the paper component recovered in the mixture receiving tank 14 was 5.8% by weight, and 49.5% by weight.

分離３では、基材裏打ち紙成分の紙繊維の解れが不十分で発泡塩化ビニル系樹脂系樹脂との剥離が悪く、紙成分の回収量は非常に少なく、発泡塩化ビニル系樹脂成分回収受け槽１３に回収した発泡塩化ビニル系樹脂成分中には、１８．５重量％と多くの紙繊維が混入しており、また混合物受け槽１４の発泡塩化ビニル系樹脂成分と紙成分の混合物を多く排出し分離精度が非常に悪い結果であった。   In Separation 3, the paper fiber of the base backing paper component is not sufficiently unraveled and the separation from the foamed vinyl chloride resin resin is poor, the amount of recovered paper component is very small, and the foamed vinyl chloride resin component recovery receiving tank The foamed vinyl chloride resin component recovered in 13 contains 18.5% by weight of a large amount of paper fiber, and a large amount of the mixture of foamed vinyl chloride resin component and paper component in the mixture receiving tank 14 is discharged. The separation accuracy was very poor.

（未分離４）
分離１に用いたと同じ種類の壁紙から図２に示す装置で、目開きが５ｍｍのスクリーン５を装着した衝撃粉砕機（尾上製作所製）４に供給して発泡塩化ビニル系樹脂壁紙を粉砕し、スクリーン５の下で回収した発泡塩化ビニル系樹脂成分と紙成分の混合物を得た。（回収樹脂４）
（回収樹脂１）と同様にして分析した結果、回収した発泡塩化ビニル系樹脂成分と紙成分の混合物の重量比率は、発泡塩化ビニル系樹脂成分が７６．５重量％と紙成分が２３．５重量％あった。
スクリーン５の下で回収した発泡塩化ビニル系樹脂成分と紙成分の混合物は、基材裏打ち紙成分の紙繊維が柔らかい綿状に開繊するとともに発泡塩化ビニル系樹脂被覆層が剥離した状態であった。 (Unseparated 4)
The same type of wallpaper used for separation 1 is supplied to an impact crusher (manufactured by Onoe Seisakusho) 4 equipped with a screen 5 having an opening of 5 mm by the apparatus shown in FIG. 2, and the foamed vinyl chloride resin wallpaper is crushed. A mixture of the foamed vinyl chloride resin component and the paper component collected under the screen 5 was obtained. (Recovered resin 4)
As a result of analysis in the same manner as in (Recovered resin 1), the weight ratio of the recovered mixture of the foamed vinyl chloride resin component and the paper component was 76.5% by weight for the foamed vinyl chloride resin component and 23.5 for the paper component. % By weight.
The mixture of the foamed vinyl chloride resin component and the paper component collected under the screen 5 was in a state in which the paper fiber of the base backing paper component was opened in a soft cotton shape and the foamed vinyl chloride resin coating layer was peeled off. It was.

（回収樹脂と塩化ビニル系樹脂製品廃材を混合しペレット化した。）
前記回収した、回収樹脂１、回収樹脂２、回収樹脂３、回収樹脂４のそれぞれの樹脂に廃電線から回収した塩化ビニル系樹脂製品の粉砕物を混合した後、混練機、造粒機を使ってペレット化した。 (Recovered resin and vinyl chloride resin product waste material were mixed and pelletized.)
After the recovered resin 1, recovered resin 2, recovered resin 3, and recovered resin 4 are mixed with the pulverized product of the vinyl chloride resin product recovered from the waste wire, a kneader and a granulator are used. And pelletized.

（ペレット化の方法）
表１の配合割合で回収樹脂と廃電線から回収した塩化ビニル系樹脂製品（硬度８８：ＪＩＳＫ６２５３）の粉砕物の合計１００重量部に対して加工性改良剤のＰＡ−２０（株式会社カネカ製の（メタ）アクリル酸エステル系樹脂）５重量部、
複合系のカルシウム亜鉛系安定剤１重量部、ポリエチレンワックス１重量部を計量し、スーパーミキサーに投入し１００℃ まで加温した後、スーパーミキサーのジャッケットに冷水を通し７０℃まで冷却し混合物を排出した。さらに、混合物を加圧ニーダーに投入し溶融樹脂温度を１５０℃まで上げ混練した。その後、混合物を設定温度１２０℃に設定した造粒機（一軸スクリュータイプの押出機）に投入し、スクリューを駆動させて混合物をダイスから麺状に押出し、ダイスの中心に固定した回転式のカッターでカットした後、空冷式の冷却装置でカット物を冷却しペレット化した。造粒機で押出した時の溶融樹脂温度は１４０℃であった。 (Pelletization method)
PA-20 (manufactured by Kaneka Corporation) for a total of 100 parts by weight of the pulverized product of vinyl chloride resin product (hardness 88: JISK6253) recovered from the recovered resin and the waste wire at the mixing ratio shown in Table 1. (Meth) acrylic ester resin) 5 parts by weight,
Weigh 1 part by weight of complex calcium zinc stabilizer and 1 part by weight of polyethylene wax, add to super mixer and warm to 100 ° C, then pass cold water through super mixer jacket and cool to 70 ° C to discharge the mixture. did. Further, the mixture was put into a pressure kneader and the temperature of the molten resin was raised to 150 ° C. and kneaded. Then, the mixture is put into a granulator (single screw type extruder) set at a set temperature of 120 ° C., the screw is driven to extrude the mixture from a die into noodles, and a rotary cutter fixed at the center of the die After cutting, the cut product was cooled and pelletized with an air-cooled cooling device. The molten resin temperature when extruded with a granulator was 140 ° C.

（実施例１〜４及び比較例１、２）
回収樹脂１、回収樹脂２、回収樹脂３、回収樹脂４に廃電線から回収された塩化ビニル系樹脂粉砕品を混合しペレット化した材料について、押出成形評価を実施し外観と発泡率を調べた。その結果を表−１に示す。 (Examples 1 to 4 and Comparative Examples 1 and 2)
Extrusion evaluation was performed on the material obtained by mixing the recovered resin 1, the recovered resin 2, the recovered resin 3, and the recovered resin 4 with the vinyl chloride resin pulverized product recovered from the waste wire, and examined the appearance and the foaming rate. . The results are shown in Table-1.

（押出機の内容と温度条件）
押 出 機：４０ｍｍ
Ｌ／Ｄ：２４
スクリュー：フルフライトタイプ
押出成形物：厚み３ｍｍ厚み×幅３０ｍｍのテープ状
押出温度 ：１７０℃、
押出時の溶融樹脂温度は１８０℃であった。（溶融樹脂温度は押出機のダイスから吐出された溶融樹脂の温度を熱伝対温度計で測定した）。
結果を表１に示した。尚、表１での評価基準は次のようなものである。
（押出しテープの外観評価）
◎：表面が滑らかでバージン材料と同等レベルである。
○：表面が滑らかで均一な発泡層を形成する。
×：小さい糸状の集合物の凹凸が発生し厚みが不揃いとなり、テープが切れて取れない。
（発泡率の求め方）
壁紙から分離した発泡塩化ビニル系樹脂成分、廃電線の粉砕品、添加剤、押出しテープの各々の比重から求めた。
比較例１、２のものは、テープが取れず比重測定ができなかった。 (Extruder contents and temperature conditions)
Extruder: 40mm
L / D: 24
Screw: Full flight type extruded product: Tape-like extrusion temperature of thickness 3 mm thickness x width 30 mm: 170 ° C,
The molten resin temperature at the time of extrusion was 180 ° C. (The temperature of the molten resin was measured with a thermocouple thermometer from the temperature of the molten resin discharged from the die of the extruder).
The results are shown in Table 1. The evaluation criteria in Table 1 are as follows.
(External appearance evaluation of extruded tape)
A: The surface is smooth and is at the same level as the virgin material.
○: A smooth and uniform foamed layer is formed.
X: The unevenness | corrugation of a small thread-like aggregate | generation generate | occur | produces, thickness becomes uneven, and a tape cuts and cannot be removed.
(How to find the foaming rate)
It calculated | required from each specific gravity of the foaming vinyl-chloride-type resin component isolate | separated from the wallpaper, the pulverized product of a waste wire, an additive, and an extrusion tape.
In Comparative Examples 1 and 2, the tape could not be taken and the specific gravity could not be measured.

Figure 2008274137
（実施例５）
（２層押出による電線成形品作成）
上記実施例２のペレット（発泡成形用塩化ビニル系樹脂組成物）を使用して断面図、図５に示す電線３０の中間層の押出評価を実施した。
Figure 2008274137
 (Example 5)
(Creation of wire molded products by two-layer extrusion)
Using the pellets of the above Example 2 (vinyl chloride resin composition for foam molding), cross-sectional views and extrusion evaluation of the intermediate layer of the electric wire 30 shown in FIG. 5 were performed.

（外層に使用したバージンペレットの配合内容）
塩化ビニル系樹脂（重合度：１３００）：１００部
ＤＩＮＰ：７０部
複合系のカルシウム亜鉛系安定剤：４部
炭酸カルシウム：４０部。 (Content of virgin pellets used for outer layer)
Vinyl chloride resin (degree of polymerization: 1300): 100 parts DINP: 70 parts Composite calcium zinc stabilizer: 4 parts Calcium carbonate: 40 parts.

（一段目の押出機と押出条件）
（１）実施例２と同じペレットを使用して押出。
押出機：９０ｍｍφ
Ｌ／Ｄ：２４
スクリュー：フルフライト
温度設定：
Ｃ１：１５０℃、Ｃ２：１５０℃、Ｃ３：１５５℃、Ｃ４：１６０℃、Ｃ５：１７０℃、ネック：１６０℃、ヘッド：１６０℃、ダイス：１６５℃
溶融樹脂温度は１８０℃であった。（溶融樹脂温度は押出機のダイスから吐出された溶融樹脂の温度を熱伝対温度計で測定した）。 (First stage extruder and extrusion conditions)
(1) Extrusion using the same pellets as in Example 2.
Extruder: 90mmφ
L / D: 24
Screw: Full flight temperature setting:
C1: 150 ° C, C2: 150 ° C, C3: 155 ° C, C4: 160 ° C, C5: 170 ° C, neck: 160 ° C, head: 160 ° C, die: 165 ° C
The molten resin temperature was 180 ° C. (The temperature of the molten resin was measured with a thermocouple thermometer from the temperature of the molten resin discharged from the die of the extruder).

（二段目の押出機と押出条件）
（２）一段目の押出機で押出しした成形品の外層にバ−ジンペレットを押出し被覆した。
押出機：９０ｍｍφ
Ｌ／Ｄ：２４
スクリュー：フルフライト
温度設定：
Ｃ１：１３０℃、Ｃ２：１３０℃、Ｃ３：１３５℃、Ｃ４：１４０℃、Ｃ５：１４５℃、ネック：１５０℃、ヘッド：１５５℃、ダイス：１５５℃ 。 (Second-stage extruder and extrusion conditions)
(2) Virgin pellets were extrusion coated on the outer layer of the molded product extruded by the first stage extruder.
Extruder: 90mmφ
L / D: 24
Screw: Full flight temperature setting:
C1: 130 ° C, C2: 130 ° C, C3: 135 ° C, C4: 140 ° C, C5: 145 ° C, neck: 150 ° C, head: 155 ° C, die: 155 ° C.

（実施方法）
導体（銅線）に絶縁材（バージンの軟質塩化ビニル系樹脂コンパウンド）を被覆した絶縁電線（赤・黒・白の３色の撚り線）を準備し、押出時に中間層（実施例２のペレット）との熱融着を防止するために、タルクを塗布した。絶縁電線を(1)の一段目の押出機に通し、実施例２のペレット押出して発泡層（中間層）を形成させた。発泡層で被覆した絶縁電線は、二段目の押出機に通し、バージン樹脂で外層を被覆し成形した。その後、冷却層で水冷した後、巻取り機で巻き取り電線を完成させた。 (Implementation method)
Prepare an insulated wire (3 colored strands of red, black and white) coated with an insulating material (virgin soft vinyl chloride resin compound) on a conductor (copper wire), and press the intermediate layer (pellet of Example 2) The talc was applied to prevent thermal fusion. The insulated wire was passed through the first-stage extruder (1) and the pellets of Example 2 were extruded to form a foam layer (intermediate layer). The insulated wire covered with the foamed layer was passed through a second-stage extruder, and the outer layer was covered with virgin resin and molded. Then, after water-cooling with the cooling layer, the winding electric wire was completed with the winder.

（塩化ビニル系樹脂発泡成形品の発泡倍率）
実施例２のペレット使用した中間層（発泡層）の発泡状態を確認するため完成した電線を確認した。完成した電線から約２５ｃｍを切り取り、押出成形と同方向にカッターで切り込みを入れ、バージン樹脂で被覆し外層を剥がし、その後発泡層で被覆された絶縁電線を実施例２の発泡層（中間層）とバージン樹脂で被覆した絶縁電線とに分けた。その後、実施例２のペレットの発泡層の発泡率を測定した結果１４．５％発泡していることを確認した。 (Foaming ratio of vinyl chloride resin foam molding)
In order to confirm the foamed state of the intermediate layer (foamed layer) using the pellets of Example 2, a completed electric wire was confirmed. Cut out about 25 cm from the completed electric wire, cut it with a cutter in the same direction as extrusion, coat with virgin resin, peel off the outer layer, and then insulate the insulated electric wire covered with the foamed layer as the foamed layer (intermediate layer) of Example 2 And insulated wires covered with virgin resin. Then, as a result of measuring the foaming rate of the foaming layer of the pellet of Example 2, it confirmed that it was foaming 14.5%.

（実施例６）
（異型２層押出によるコーナーガード材成形品作成）
上記、実施例２のペレット（発泡成形用塩化ビニル系樹脂組成物）を使用して断面図・図６に示すコーナーガード材３５の中間層の異型押出評価を実施した。 (Example 6)
(Corner guard material molded product created by two-layer extrusion)
Using the pellets of Example 2 (vinyl chloride resin composition for foam molding), the profile extrusion evaluation of the intermediate layer of the corner guard material 35 shown in the sectional view and FIG. 6 was performed.

（外層に使用したバージンペレットの配合内容）
塩化ビニル系樹脂（重合度：１３００）：１００部
ＤＯＰ：６５部
ＰＡ−２０：３部
カルシウム亜鉛系安定剤：４部
炭酸カルシウム：３０部。 (Content of virgin pellets used for outer layer)
Vinyl chloride resin (degree of polymerization: 1300): 100 parts DOP: 65 parts PA-20: 3 parts Calcium zinc stabilizer: 4 parts Calcium carbonate: 30 parts.

（一段目の押出機と押出条件）
（１）実施例２と同じペレットを使用し押出し。
押出機：６５ｍｍφ
Ｌ／Ｄ：２５
スクリュー：フルフライト
温度設定：
Ｃ１：１４０℃、Ｃ２：１４０℃、Ｃ３：１４０℃、Ｃ４：１４５℃、アダプター：１５０℃、ダイ１：１６０℃、ダイ２：１６５℃
溶融樹脂温度は１７５℃であった。（溶融樹脂温度は押出機のダイスから吐出された溶融樹脂の温度を熱伝対温度計で測定した）。 (First stage extruder and extrusion conditions)
(1) Extrusion using the same pellets as in Example 2.
Extruder: 65mmφ
L / D: 25
Screw: Full flight temperature setting:
C1: 140 ° C, C2: 140 ° C, C3: 140 ° C, C4: 145 ° C, adapter: 150 ° C, die 1: 160 ° C, die 2: 165 ° C
The molten resin temperature was 175 ° C. (The temperature of the molten resin was measured with a thermocouple thermometer from the temperature of the molten resin discharged from the die of the extruder).

（二段目の押出機と押出条件）
（２）一段目の押出機で押出しした成形品の外層にバ−ジンペレットを押出し被覆した。
押出機：６５ｍｍφ
Ｌ／Ｄ：２５
スクリュー：フルフライト
温度設定：
Ｃ１：１１５℃、Ｃ２：１１５℃、Ｃ３：１１５℃、Ｃ４：１２０℃、アダプター：１３０℃、ダイ１：１４０℃、ダイ２：１５０℃ 。
（実施方法）
（１）の一段目の押出機に実施例５のペレット押出して異形の発泡層（中間層）を成形し、その後、冷却水槽で冷却した後(２)の押出機を通し、バージン樹脂で外層を被覆し異形押出し成形した。さらに、冷却層で水冷した後、引取り機で引き取り定尺カットしコーナーガード材を完成させた。 (Second-stage extruder and extrusion conditions)
(2) Virgin pellets were extrusion coated on the outer layer of the molded product extruded by the first stage extruder.
Extruder: 65mmφ
L / D: 25
Screw: Full flight temperature setting:
C1: 115 ° C, C2: 115 ° C, C3: 115 ° C, C4: 120 ° C, adapter: 130 ° C, die 1: 140 ° C, die 2: 150 ° C.
(Implementation method)
(1) Extruded pellets of Example 5 into the first stage of the extruder to form an irregular foam layer (intermediate layer), then cooled in a cooling water tank, passed through the extruder of (2), and outer layer with virgin resin Was coated and profile-extruded. Further, after cooling with water in the cooling layer, the corner guard material was completed by taking a regular cut with a take-up machine.

（塩化ビニル系樹脂発泡成形品の発泡倍率）
実施例２のペレット使用した中間層（発泡層）の発泡状態を確認するた め完成したコーナーガード材で確認した。完成したコーナーガード材から約１０ｃｍを切り取り、押出成形と同方向にカッターで切り込みを入れ、実施例５の発泡層（中間層）とバージン樹脂で被覆した外層の２層を分けた、その後、実施例５の発泡層（中間層）の発泡率を測定した結果１５．２％発泡していることを確認した。 (Foaming ratio of vinyl chloride resin foam molding)
In order to confirm the foaming state of the intermediate layer (foamed layer) using the pellets of Example 2, the finished corner guard material was confirmed. Cut about 10cm from the finished corner guard material, cut with a cutter in the same direction as the extrusion, and divided the foam layer (intermediate layer) of Example 5 and the outer layer coated with virgin resin, and then implemented As a result of measuring the foaming rate of the foaming layer (intermediate layer) of Example 5, it was confirmed that the foaming was 15.2%.

壁紙に含まれる不定形発泡塩化ビニル系樹脂成分（図中の符号２）、繊維状の紙成分（図中の符号３）よりそれらの混在した壁紙粉砕物（図中の符号１）を示す概念図である。A concept showing an indeterminate foamed vinyl chloride resin component (reference numeral 2 in the figure) contained in the wallpaper and a pulverized wallpaper (reference numeral 1 in the figure) mixed with fibrous paper components (reference numeral 3 in the figure). FIG. 本発明で発泡塩化ビニル系樹脂壁紙からの発泡塩化ビニル系樹脂成分の分離回収に用いる分離回収装置の１実施形態を示す模式図である。It is a schematic diagram which shows one Embodiment of the separation-and-recovery apparatus used for isolation | separation collection | recovery of the foaming vinyl chloride type-resin component from a foaming vinyl chloride-type resin wallpaper by this invention. 本発明で発泡塩化ビニル系樹脂壁紙からの発泡塩化ビニル系樹脂成分の分離回収に用いる分離回収装置の他の実施形態を示す模式図である。It is a schematic diagram which shows other embodiment of the isolation | separation collection | recovery apparatus used for isolation | separation collection | recovery of the foaming vinyl chloride resin component from a foaming vinyl chloride resin wallpaper in this invention. 本発明で発泡塩化ビニル系樹脂壁紙からの発泡塩化ビニル系樹脂成分の分離回収に用いる風力分離装置の実施形態の概略を示す縦断面である。It is a longitudinal section showing an outline of an embodiment of a wind power separation device used for separation and recovery of a foamed vinyl chloride resin component from a foamed vinyl chloride resin wallpaper in the present invention. 電線の断面図である。It is sectional drawing of an electric wire. コーナーガード材の断面図である。It is sectional drawing of a corner guard material.

符号の説明Explanation of symbols

１．発泡塩化ビニル系樹脂壁紙粉砕物
２．発泡塩化ビニル系樹脂成分
３．紙成分
４、４Ｂ．衝撃粉砕機
５、５Ｂ．スクリーン
６、６Ｂ．ブロアー
７、７Ｂ．分離装置
８、８Ｂ．発泡塩化ビニル系樹脂成分受け槽
９、９Ｂ．ブロアー
１０、１０Ｂ．サイクロン分級器
１１．振動シフター
１２．フルイ（金網）
１３．発泡塩化ビニル系樹脂成分回収受け槽
１４．紙成分と発泡塩化ビニル系樹脂成分の混合物受け槽
１５、１５Ｂ．ブロアー
１６、１６Ｂ．サイクロン分級器
１７、１７Ｂ．紙成分回収受け槽
１８、１８Ｂ．分離塔
１８ａ．分離塔の縦円筒形胴部
１８ｂ．分離塔上部
１８ｃ．分離塔下部
１９、１９Ｂ．減圧排出口
２０、２０Ｂ．空気補給口
２１、２１Ｂ．円形板
２２．間隙
２３、２３Ｂ．空気輸送管
２４．円形板支持具
２４ａ．円形板支持ネジ軸
２５、２５Ｂ．空気輸送管
２６、２６Ｂ．空気輸送管
３０．電線
３１．導体
３２．バージン塩化ビニル系樹脂を被覆した絶縁層
３３．実施例２の塩化ビニル系樹脂発泡層
３４．バージン塩化ビニル系樹脂を被覆した外層
３５．コーナーガード材
３６．実施例５の塩化ビニル系樹脂発泡層
３７．バージン塩化ビニル系樹脂を被覆した外層 1. 1. Foamed vinyl chloride resin wallpaper pulverized product 2. Foamed vinyl chloride resin component Paper component 4, 4B. Impact crusher 5, 5B. Screen 6, 6B. Blower 7, 7B. Separation device 8, 8B. Foamed vinyl chloride resin component receiving tank 9, 9B. Blower 10, 10B. 10. Cyclone classifier Vibration shifter 12. Fully (wire mesh)
13. 13. Foamed vinyl chloride resin component collection receiving tank Mixture receiving tank of paper component and foamed vinyl chloride resin component 15, 15B. Blower 16, 16B. Cyclone classifier 17, 17B. Paper component collection tank 18, 18B. Separation tower 18a. Vertical cylindrical body of separation tower 18b. Upper part of separation tower 18c. Lower part of separation tower 19, 19B. Decompression outlet 20, 20B. Air supply port 21, 21B. Circular plate 22. Gap 23, 23B. Pneumatic transport pipe 24. Circular plate support 24a. Circular plate support screw shaft 25, 25B. Pneumatic transport pipe 26, 26B. Pneumatic transport pipe 30. Electric wire 31. Conductor 32. Insulating layer coated with virgin vinyl chloride resin 33. 35. Vinyl chloride-based resin foam layer of Example 2 35. Outer layer coated with virgin vinyl chloride resin Corner guard material 36. 36. Vinyl chloride-based resin foam layer of Example 5 Outer layer coated with virgin vinyl chloride resin

Claims (5)

発泡塩化ビニル系樹脂壁紙の廃材から乾式分離方式で回収された発泡塩化ビニル系樹脂成分１００〜２０重量部と壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂成分０〜８０重量部からなり、該発泡塩化ビニル系樹脂成分に含まれる化学発泡剤の未分解物及び/又は残渣を利用して発泡させる塩化ビニル系樹脂発泡成形体の製造方法。 100 to 20 parts by weight of the foamed vinyl chloride resin component recovered from the waste material of the foamed vinyl chloride resin wallpaper by a dry separation method, and the vinyl chloride resin component 0 to 80 recovered from the waste material of the vinyl chloride resin product other than the wallpaper A method for producing a vinyl chloride resin foamed molded article, comprising: parts by weight and foaming using an undecomposed product and / or residue of a chemical foaming agent contained in the foamed vinyl chloride resin component. 前記発泡塩化ビニル系樹脂壁紙の廃材から乾式分離方式で回収された発泡塩化ビニル系樹脂成分と壁紙以外の塩化ビニル系樹脂製品の廃材から回収された塩化ビニル系樹脂成分を混合、ペレット化する際の溶融樹脂温度は１３５〜１５５℃とし、１７０〜１９０℃の溶融樹脂温度で多層押出成形、異形押出成形して得られることを特徴とする請求項1に記載の塩化ビニル系樹脂発泡成形体の製造方法。   When mixing and pelletizing the foamed vinyl chloride resin component recovered from the foamed vinyl chloride resin wallpaper waste material by dry separation and the vinyl chloride resin component recovered from the waste material of vinyl chloride resin products other than wallpaper The molten resin temperature of 135 to 155 ° C. is obtained by multilayer extrusion molding or profile extrusion molding at a molten resin temperature of 170 to 190 ° C. 2. The vinyl chloride resin foam molded article according to claim 1, Production method. 前記発泡塩化ビニル系樹脂壁紙の廃材から回収された発泡塩化ビニル系樹脂成分中の紙成分含有量が６重量％以下であることを特徴とする請求項１又は２に記載の塩化ビニル系樹脂発泡成形体の製造方法。   The vinyl chloride resin foam according to claim 1 or 2, wherein the content of the paper component in the foamed vinyl chloride resin component recovered from the waste material of the foamed vinyl chloride resin wallpaper is 6% by weight or less. Manufacturing method of a molded object. 前記発泡塩化ビニル系樹脂壁紙の廃材から回収された発泡塩化ビニル系樹脂成分の乾式分離方式による回収方法が
Ａ）壁紙の粉砕の大きさを規制する、目開きが１ｍｍ以上２５ｍｍ以下のパンチングメタルまたは格子の目開きが１ｍｍ以上２５ｍｍ以下であるスクリーンを設置した衝撃粉砕機又はせん断式粉砕機により、発泡塩化ビニル系樹脂壁紙の廃材を粉砕する粉砕工程と、
Ｂ）前記壁紙粉砕工程で粉砕された発泡塩化ビニル系樹脂壁紙を分離装置により紙成分と発泡塩化ビニル系樹脂成分とに分離する乾式分離工程との２工程を含むことを特徴とする請求項１〜３のいずれかに記載の塩化ビニル系樹脂発泡成形体の製造方法。 A method of recovering the foamed vinyl chloride resin component recovered from the waste material of the foamed vinyl chloride resin wallpaper by a dry separation method is as follows: A) A punching metal having a mesh opening of 1 mm or more and 25 mm or less that regulates the size of the wallpaper. A crushing step of crushing the waste material of the foamed vinyl chloride resin wallpaper by an impact crusher or a shearing crusher provided with a screen having a mesh opening of 1 mm or more and 25 mm or less;
B) Two steps of a dry separation step of separating the foamed vinyl chloride resin wallpaper pulverized in the wallpaper pulverization step into a paper component and a foamed vinyl chloride resin component by a separation device are included. The manufacturing method of the vinyl chloride-type resin foaming molding in any one of -3. 前記分離工程で用いる分離装置が、略縦円筒形胴部の上部に真空吸引口を設け、下部を漏斗状に形成するとともに該漏斗状部に空気補給口を設けた分離塔内に、略円形板を、その周囲に前記分離筒内壁との間に通気間隙が存するように略水平に支持し、前記略円形板上の略中心部に空気輸送管によって前記壁紙粉砕工程で粉砕された壁紙粉砕物を搬入し、該壁紙粉砕物中の発泡塩化ビニル系樹脂成分を前記略円形板の周縁部から落下させる一方、紙成分は、空気補給口から入って分離塔内を上昇する空気流に乗せて前記真空吸引口から吸引、排出するようにした風力分離装置であることを特徴とする請求項１〜４のいずれかに記載の塩化ビニル系樹脂発泡成形体の製造方法。   The separation device used in the separation step is provided with a substantially circular cylindrical body in a separation tower provided with a vacuum suction port at the top and a funnel at the bottom and an air supply port at the funnel. The wallpaper is crushed in the wallpaper pulverization step by an air transport pipe at a substantially central portion on the substantially circular plate so that a ventilation gap exists between the plate and the inner wall of the separation cylinder around the plate. The foamed vinyl chloride resin component in the pulverized wallpaper is dropped from the peripheral edge of the substantially circular plate, while the paper component is placed on the air stream that enters the air supply port and rises in the separation tower. A method for producing a vinyl chloride resin foam molded article according to any one of claims 1 to 4, characterized in that the apparatus is a wind power separating device that sucks and discharges from the vacuum suction port.
JP2007120148A 2007-04-27 2007-04-27 Method for producing vinyl chloride-based resin expansion molded product Pending JP2008274137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007120148A JP2008274137A (en) 2007-04-27 2007-04-27 Method for producing vinyl chloride-based resin expansion molded product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007120148A JP2008274137A (en) 2007-04-27 2007-04-27 Method for producing vinyl chloride-based resin expansion molded product

Publications (1)

Publication Number Publication Date
JP2008274137A true JP2008274137A (en) 2008-11-13

Family

ID=40052530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007120148A Pending JP2008274137A (en) 2007-04-27 2007-04-27 Method for producing vinyl chloride-based resin expansion molded product

Country Status (1)

Country Link
JP (1) JP2008274137A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110315781A (en) * 2019-06-30 2019-10-11 德州瑞拓通风设备有限公司 A kind of glass-magnesium composite plate waste recovery reuse method and products thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110315781A (en) * 2019-06-30 2019-10-11 德州瑞拓通风设备有限公司 A kind of glass-magnesium composite plate waste recovery reuse method and products thereof

Similar Documents

Publication Publication Date Title
Wilkes et al. PVC handbook
US7902262B2 (en) Method of recycling mixed streams of ewaste (WEEE)
CA2715730A1 (en) Surface coverings containing reclaimed vct material, and methods and systems for making and using them
CA2997690C (en) Flexible molded skin
Carroll Jr et al. Poly (vinyl chloride)
Sauerwein Mineral filler flame retardants
CN1314735C (en) Polyvinyl alcohol composition and film
EP3201262B1 (en) Foamed plasticized pvc article for rock shields
JP2002224652A (en) Method for recycling waste household electrical appliance and article to be recycled
JP2008031264A (en) Preparation method of flexible vinyl chloride resin composition using waste vinyl chloride resin wallpaper and its product
JP2006272241A (en) Separation/recovery method of paper component and polyvinylchloride component from polyvinylchloride resin-based wallpaper, and regeneratd polyvinylchloride resin
JP2008274137A (en) Method for producing vinyl chloride-based resin expansion molded product
CN103881252A (en) Waterproof rubber cable material for submersible motor and preparation method thereof
JP2011042793A (en) Composition for recycled resin-containing polyolefinic resin foam and foam thereof
KR102160267B1 (en) Construction material of flame retardant using waste plastics and method for manufacturing the same
JP2006274171A (en) Flexible vinyl chloride resin composition and flexible vinyl chloride resin article
US7325758B2 (en) Method of upgrading composite materials
KR101820439B1 (en) Recycle method of PVB and Method for manufacture of PVB carpet tile and PVB carpet tile
JP4480447B2 (en) A method for producing a recycled thermoplastic resin composition.
JPH06155474A (en) Manufacture of regenerated resin pellet and regenerated resin product
CN104260383B (en) Production technology of high-toughness heat-insulation film
JP4378933B2 (en) Recycled tile carpet and its manufacturing method
JP4752512B2 (en) Plastic sorting method
JP2008137163A (en) Method and apparatus for separating wall trim material made of thermoplastic resin
JP2005280197A (en) Method for treating waste plastic composite, its treating device, separated collected plastic, recycled plastic and recycled plastic product