JP2007078521A - Discrimination method of vinyl chloride resin molded article, and vinyl chloride resin molded article used therefor - Google Patents

Discrimination method of vinyl chloride resin molded article, and vinyl chloride resin molded article used therefor Download PDF

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JP2007078521A
JP2007078521A JP2005266923A JP2005266923A JP2007078521A JP 2007078521 A JP2007078521 A JP 2007078521A JP 2005266923 A JP2005266923 A JP 2005266923A JP 2005266923 A JP2005266923 A JP 2005266923A JP 2007078521 A JP2007078521 A JP 2007078521A
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vinyl chloride
chloride resin
resin molded
molded article
identification
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Tsutomu Tanaka
力 田中
Hiroyuki Kawarada
裕之 川原田
Tadashi Kobayashi
正 小林
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Takiron Co Ltd
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Takiron Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a discrimination method for discriminating between a plurality of vinyl chloride resin molded articles having approximately the same hue, and the vinyl chloride resin molded article used for the discrimination method. <P>SOLUTION: A discrimination material 1 which is normally not added at a vinyl chloride resin molding time is included in at least one of the vinyl chloride resin molded articles, having approximately the same hue, used when a semiconductor or a liquid crystal is manufactured. The molded articles are irradiated with energy, such as X-rays or electromagnetic waves, and characteristic fluorescence X-rays or excitation light radiated by excitation of the discrimination material 1 is detected, to thereby discriminate it from molded articles that do not contain the discrimination material 1 and does not radiate the fluorescence X-rays or excitation light. As the discrimination material 1, an agent formed by doping chromium ions to aluminum oxide or a fluorescent agent is used. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、半導体若しくは液晶の製造に使用される略同じ色相を有する品質の異なる塩化ビニル樹脂成形体の識別方法、及びこれに使用する塩化ビニル樹脂成形体に関する。   The present invention relates to a method for identifying a vinyl chloride resin molded product having substantially the same hue and different quality used for manufacturing a semiconductor or a liquid crystal, and a vinyl chloride resin molded product used for the method.

塩化ビニル樹脂板は、種々の用途に使用されていて、同一樹脂であっても用途に適した品質を持つように、樹脂自体の改良がなされると共に、樹脂に副資材を配合して必要な品質を発揮するようになされている。そして、用途によっては並列して使用され、美観上同一色相の樹脂板を使用することが求められて、異品質の塩化ビニル樹脂板同士であっても同じ色相にしてある。また、同一樹脂であっても配合組成を異ならせた異品質の樹脂板が同じ色相になされて、これを２次加工して各製品が作製され、これらが混在して使用される場合も多くみられるようになって来た。このため、これらの塩化ビニル樹脂板の品質を識別させるために、一般には、各塩化ビニル樹脂板は異なるダンボールケースに格納されたり、マスキングやラベルなど貼り付けるなどしている。   The vinyl chloride resin plate is used for various applications, and even if the same resin is used, the resin itself is improved so that it has the quality suitable for the application. It is designed to demonstrate quality. And depending on the application, it is required to use resin plates having the same hue from the viewpoint of aesthetic appearance, and even the different quality vinyl chloride resin plates have the same hue. Also, even if the resin is the same, different quality resin plates with different blending compositions are made to the same hue, and this is secondarily processed to produce each product, which is often used in combination. It has come to be seen. For this reason, in order to identify the quality of these vinyl chloride resin plates, in general, each vinyl chloride resin plate is stored in a different cardboard case or masked or labeled.

しかし、加工されて製品になった後はマスキングもラベルも剥離されるので、どの品質の塩化ビニル樹脂板を使用したのかが識別ができなかつた。また、塩化ビニル樹脂板を加工した後の端材は、加工メーカーで保管されて再使用されたり回収されたりするが、端材が大きいとマスキングを残すことで樹脂板の種類・品質が確認できるが、ある程度以下の大きさになるとマスキングも剥離されて、端材の種類・品質がわからなくなるという問題があった。さらに、端材を回収する際にも、どの種類・品質の端材かが不明となり、回収が困難になるという問題もあった。   However, since the mask and label were peeled off after processing into a product, it was impossible to identify which quality vinyl chloride resin plate was used. In addition, the end material after processing the vinyl chloride resin plate is stored and reused or collected by the processing manufacturer, but if the end material is large, the type and quality of the resin plate can be confirmed by leaving masking. However, when the size is below a certain level, the masking is peeled off, and there is a problem that the type and quality of the end material cannot be understood. Further, when collecting the scraps, there is a problem that it is difficult to collect the scraps of which kind and quality is unknown.

特に、半導体若しくは液晶の製造に使用される塩化ビニル樹脂板は、最近、ＩＳＯ５６６０、ＡＳＴＭ Ｅ１３５４に基づくコーンカロリーメーターを用いた最大発熱速度が１２０ｋＷ/ｍ２以下とされた難燃性塩化ビニル樹脂板も多く使用され、樹脂板のままで間仕切り、カバー、装置外板、筐体などとして使用され、或は２次加工して洗浄槽や越流堰やドレーンパンやダクトなどを組み込んだ製造装置などが製作されている。しかし、これと略同じ色相を有するが難燃性を有さない塩化ビニル樹脂板も使用されていて、色相が略同一であるので外観上はこれら両者の識別ができなくて、上記の如き問題が内在していた。加えて、これらの樹脂板で作製した同一形状の２次加工品は、色相が略同じ塩化ビニル樹脂であるし、外観形状も同じであるから、いずれの樹脂板の２次加工品であるかが識別できないという問題もあった。 In particular, the vinyl chloride resin plate used for the production of semiconductors or liquid crystals is a flame retardant vinyl chloride resin plate whose maximum heat generation rate using a cone calorimeter based on ISO 5660 and ASTM E1354 is 120 kW / m 2 or less. Used as partitions, covers, device outer plates, housings, etc. with resin plates as it is, or secondary processing and manufacturing equipment that incorporates washing tanks, overflow weirs, drain pans, ducts, etc. Is produced. However, a vinyl chloride resin plate having substantially the same hue as this but not flame retardant is also used, and since the hue is substantially the same, it is impossible to distinguish both of them in appearance, and the above-mentioned problems Was inherent. In addition, secondary processed products of the same shape made of these resin plates are substantially the same vinyl chloride resin in hue and the same external shape, so which resin plate is a secondary processed product? There was also a problem that could not be identified.

この問題を解決するため、彩色不透明の外層とは異なる色相の識別層を積層一体化された熱可塑性樹脂板が開発された（特許文献１）。このような識別層を有する合成樹脂板であると、種類・品質の異なる樹脂板同士であっても、その端面に現れる識別層を比較することで、お互いの合成樹脂板を識別することができる。また、２次成形品であっても端面の識別層を比較することができるので、どの種類・品質の樹脂板が使用されていたかを知ることができる。
さらに、内層の両面に顔料濃度の異なる外層を設けた熱可塑性樹脂板も開発された（特許文献２）。この合成樹脂板であっても、上記と同様に、品質の異なる樹脂板を識別することができる。
実公平６−６９１７号公報 特開２００４−５８４４３号公報 In order to solve this problem, a thermoplastic resin plate has been developed in which an identification layer having a hue different from that of the colored and opaque outer layer is laminated and integrated (Patent Document 1). By using a synthetic resin plate having such an identification layer, even if the resin plates are of different types and qualities, the synthetic resin plates can be distinguished from each other by comparing the identification layers appearing on the end faces. . In addition, since the identification layer on the end face can be compared even with a secondary molded product, it is possible to know what kind and quality of the resin plate was used.
Furthermore, a thermoplastic resin plate in which an outer layer having different pigment concentrations is provided on both sides of the inner layer has also been developed (Patent Document 2). Even with this synthetic resin plate, resin plates having different qualities can be identified in the same manner as described above.
No. 6-6917 JP 2004-58443 A

しかし、上記の特許文献１にあっては、外層と異色の識別層が積層されているため、樹脂板の端面にも当該外層と識別層とが現れ、端面が異色の複数の層を有することとなり、外観が見苦しいという別の問題が発生した。
この問題は、特許文献２の熱可塑性合成樹脂板にあっては、顔料の多少だけであるので色相の変化は目立たないものの、識別できるだけの色相差は必要であり、やはり端面は異色の複数の層を有することとなり、外観が見苦しいことには変わることがなかった。 However, in the above-mentioned Patent Document 1, since the outer layer and the different color identification layer are laminated, the outer layer and the identification layer appear on the end surface of the resin plate, and the end surface has a plurality of layers having different colors. Then, another problem that the appearance was unsightly occurred.
The problem is that the thermoplastic synthetic resin plate of Patent Document 2 has only a slight amount of pigment, so the change in hue is inconspicuous, but a hue difference that can be distinguished is necessary, and the end face is also a plurality of different colors. It had a layer and the appearance was unsightly.

本発明は、上記問題に基づき、略同じ外観色相を有し、表裏面は勿論、端面でも単一色相を有する塩化ビニル樹脂成形体同士を識別する方法を提供することを目的とする。
また、この識別方法に用いる塩化ビニル樹脂成形体を提供することも目的とする。 Based on the above problems, an object of the present invention is to provide a method for identifying vinyl chloride resin molded articles having substantially the same appearance hue and having a single hue not only on the front and back surfaces but also on the end faces.
Another object of the present invention is to provide a vinyl chloride resin molded article used for this identification method.

本発明に係る塩化ビニル樹脂成形体の識別方法は、半導体若しくは液晶の製造に使用される略同じ色相の品質の異なる複数の塩化ビニル樹脂成形体を識別する方法であって、これらの塩化ビニル樹脂成形体の少なくとも1つに識別物質を含有させ、これら複数の塩化ビニル樹脂形成体にエネルギーを与えて、塩化ビニル樹脂成形体に含まれている識別物質を励起させ、当該識別物質から放射されるエネルギーを検出して、他の塩化ビニル樹脂成形体と識別することを特徴とするものである。   The method for identifying a vinyl chloride resin molded body according to the present invention is a method for identifying a plurality of vinyl chloride resin molded bodies having substantially the same hue and different quality used in the manufacture of semiconductors or liquid crystals, and these vinyl chloride resins At least one of the molded bodies contains an identification substance, energizes the plurality of vinyl chloride resin molded bodies to excite the identification substances contained in the vinyl chloride resin molded body, and radiates from the identification substances. It is characterized in that energy is detected and distinguished from other vinyl chloride resin moldings.

本発明の塩化ビニル樹脂成形体の識別方法においては、半導体若しくは液晶の製造に使用される難燃性の樹脂成形体にＸ線を照射して、当該塩化ビニル樹脂成形体に含まれる識別物質から発生した蛍光Ｘ線を検出し、その蛍光Ｘ線の強度値などの特性を比較することにより、他の塩化ビニル樹脂成形体と識別することが好ましい。
また、塩化ビニル樹脂成形体に電磁波を照射して、当該塩化ビニル樹脂成形体に含まれる識別物質から発生した励起光を検出し、その励起光のスペクトルなどの特性を比較することにより、他の塩化ビニル樹脂成形体と識別することを特徴とすることも好ましい。 In the method for identifying a vinyl chloride resin molded body according to the present invention, the flame retardant resin molded body used for manufacturing a semiconductor or a liquid crystal is irradiated with X-rays, and the identification material contained in the vinyl chloride resin molded body is used. It is preferable that the generated fluorescent X-rays are detected and distinguished from other vinyl chloride resin molded articles by comparing characteristics such as the intensity value of the fluorescent X-rays.
Also, by irradiating the vinyl chloride resin molding with electromagnetic waves, detecting the excitation light generated from the identification substance contained in the vinyl chloride resin molding, and comparing the characteristics such as the spectrum of the excitation light, It is also preferable to distinguish from a vinyl chloride resin molded article.

さらに、一方の塩化ビニル樹脂成形体には識別物質を含み、他方の塩化ビニル樹脂成形体には識別物質を含まない２種類の塩化ビニル樹脂成形体にエネルギーを照射し、一方の識別物質を含む塩化ビニル樹脂成形体から放射されるエネルギーを検出して、他方の塩化ビニル樹脂成形体と識別することを特徴とすることも好ましい。
さらに、一方の塩化ビニル樹脂成形体には識別物質を含み、他方の塩化ビニル樹脂成形体には識別物質を含まない２種類の塩化ビニル樹脂成形体にエネルギーを照射し、一方の識別物質を含む塩化ビニル樹脂成形体から放射されるエネルギーを検出して、他方の塩化ビニル樹脂成形体と識別することも好ましい。 Further, one vinyl chloride resin molded article contains an identification substance, and the other vinyl chloride resin molded article irradiates two types of vinyl chloride resin molded articles that do not contain an identification substance, and contains one identification substance. It is also preferable that the energy radiated from the vinyl chloride resin molding is detected and distinguished from the other vinyl chloride resin molding.
Further, one vinyl chloride resin molded article contains an identification substance, and the other vinyl chloride resin molded article irradiates two types of vinyl chloride resin molded articles that do not contain an identification substance, and contains one identification substance. It is also preferable to detect the energy radiated from the vinyl chloride resin molding and distinguish it from the other vinyl chloride resin molding.

本発明に係る塩化ビニル樹脂成形体は、上記の塩化ビニル樹脂成形体の識別方法に用いられる半導体若しくは液晶の製造に使用される塩化ビニル樹脂成形体であって、識別物質を含む塩化ビニル樹脂成形体が難燃性を有する塩化ビニル樹脂より形成されていることを特徴とするものである。   A vinyl chloride resin molded article according to the present invention is a vinyl chloride resin molded article used for manufacturing a semiconductor or a liquid crystal used in the above-described method for identifying a vinyl chloride resin molded article, and includes a vinyl chloride resin molded article containing an identification substance. The body is formed of a vinyl chloride resin having flame retardancy.

本発明の塩化ビニル樹脂成形体の識別方法は、半導体若しくは液晶の製造に使用される略同じ色相で外観上識別できない複数の塩化ビニル樹脂成形体であっても、これらの塩化ビニル樹脂成形体にエネルギーを与えることで、識別物質を含む塩化ビニル樹脂成形体からは前記識別物質が励起して特有のエネルギーを放射するので、これを検出し、この放射物質を含まずに特有のエネルギーを放射しない塩化ビニル樹脂成形体と識別したり、或は識別物質を含む複数の塩化ビニル樹脂成形体であっても、放射エネルギーの強度値やスペクトルなどの特性を比較することで、各塩化ビニル樹脂成形体同士を識別することができる。   The vinyl chloride resin molded product identification method according to the present invention can be applied to a plurality of vinyl chloride resin molded products that cannot be visually distinguished with substantially the same hue used in the manufacture of semiconductors or liquid crystals. By giving energy, the vinyl chloride resin molded article containing the identification substance excites the identification substance and emits specific energy. Therefore, this is detected, and the specific energy is not emitted without including the emission substance. Each vinyl chloride resin molding can be identified by comparing characteristics such as the intensity value and spectrum of the radiant energy, even if it is identified as a vinyl chloride resin molding or a plurality of vinyl chloride resin moldings containing an identification substance. They can be distinguished from each other.

この識別方法において、塩化ビニル樹脂成形体にＸ線を照射すれば、識別物質が特有の蛍光Ｘ線を放射するので、当該蛍光Ｘ線を検出して、この蛍光Ｘ線を照射しない塩化ビニル樹脂成形体と識別したり、強度値などの特性を比較することにより、識別物質を含む各塩化ビニル樹脂成形体同士であっても識別できる。   In this identification method, if the vinyl chloride resin molding is irradiated with X-rays, the identification substance emits specific fluorescent X-rays. Therefore, the vinyl chloride resin that detects the fluorescent X-rays and does not irradiate the fluorescent X-rays. Even if it distinguishes with a molded object or compares each characteristic, such as an intensity | strength value, even each vinyl chloride resin molded object containing an identification substance can also identify.

また、塩化ビニル樹脂成形体に電磁波を照射すれば、当該塩化ビニル樹脂成形体に含まれる識別物質が特有の蛍光などの励起光を放射するので、当該励起光を検出して、この励起光を照射しない塩化ビニル樹脂成形体と識別したり、スペクトルなどの特有の特性を有する励起光を比較することにより、放射する識別物質を含む各塩化ビニル樹脂成形体同士であっても識別できる。   Further, when the vinyl chloride resin molded body is irradiated with electromagnetic waves, the identification substance contained in the vinyl chloride resin molded body emits excitation light such as specific fluorescence. By distinguishing from vinyl chloride resin moldings that are not irradiated, or by comparing excitation light having specific characteristics such as spectrum, it is also possible to discriminate between vinyl chloride resin moldings containing identifying substances to be emitted.

また、一方の塩化ビニル樹脂成形体には識別物質を含み、他方の塩化ビニル樹脂成形体には識別物質を含まない２種類の塩化ビニル樹脂成形体であると、これらの塩化ビニル樹脂成形体にＸ線や電磁波などのエネルギーを照射することにより、識別物質を含む一方の塩化ビニル樹脂成形体からは識別物質が励起して放射する特有の蛍光Ｘ線や特有の励起光などのエネルギーを検出するが、識別物質を含まない他方の塩化ビニル樹脂成形体からは前記識別物質に起因する特有の放射エネルギーが放射されないために、はっきりと両方の塩化ビニル樹脂成形体を識別することができる。   In addition, one vinyl chloride resin molded body contains an identification substance, and the other vinyl chloride resin molded body contains two types of vinyl chloride resin molded bodies that do not contain an identification substance. By irradiating energy such as X-rays and electromagnetic waves, energy such as specific fluorescent X-rays and specific excitation light emitted from the one vinyl chloride resin molded article containing the identification substance is excited and emitted. However, since the specific radiant energy resulting from the said identification material is not radiated | emitted from the other vinyl chloride resin molding which does not contain an identification substance, both vinyl chloride resin moldings can be identified clearly.

本発明の塩化ビニル樹脂成形体は、半導体若しくは液晶の製造に使用される難燃性の塩化ビニル樹脂成形体に少なくとも識別物質が均一に分散されて形成されたものであるため、略同じ色相で外観上識別できない他の塩化ビニル樹脂成形体と混在しても、これらにＸ線、電磁波などのエネルギーを与えて、成形体に含まれる識別物質を励起させて特有の蛍光Ｘ線や励起光などのエネルギーを放射させることにより、これらの放射エネルギーを検出したり、その強度値やスペクトルなどの特性を比較したりすることで、識別物質が含まれた塩化ビニル樹脂成形体を特定することができる。   Since the vinyl chloride resin molded article of the present invention is formed by uniformly dispersing at least an identification substance in a flame retardant vinyl chloride resin molded article used for the production of semiconductors or liquid crystals, it has substantially the same hue. Even if it is mixed with other vinyl chloride resin molded products that cannot be distinguished in appearance, energy such as X-rays and electromagnetic waves is applied to them to excite the identification substances contained in the molded products, and specific fluorescent X-rays, excitation light, etc. By radiating this energy, it is possible to identify a vinyl chloride resin molded article containing an identification substance by detecting these radiant energies or comparing their intensity values, spectra, and other characteristics. .

そして、塩化ビニル樹脂成形体は、その優れた耐薬品性を利用して半導体若しくは液晶の製造に使用される製造装置、間仕切り、カバーなどの一部に板状の形態で或は２次加工品として使用されても、これを破壊することなく、これにＸ線や電磁波などのエネルギーを与えて特有の蛍光Ｘ線や励起光などの放射エネルギーの検出の有無により、或は当該放射エネルギーの強度値やスペクトルなどの特性を比較することにより、識別物質を含む塩化ビニル樹脂成形体であるか否か、或は、如何なる品質の塩化ビニル樹脂成形体であるかを識別することができる。   And the vinyl chloride resin molded body is made into a plate-like form on a part of a manufacturing apparatus, a partition, a cover, etc. used for manufacturing a semiconductor or liquid crystal by utilizing its excellent chemical resistance, or a secondary processed product. Even if it is used as, the energy of X-rays, electromagnetic waves, etc. is given to this without destroying it, and the presence or absence of detection of radiant energy such as specific fluorescent X-rays or excitation light, or the intensity of the radiant energy By comparing characteristics such as value and spectrum, it is possible to identify whether or not the vinyl chloride resin molded body contains an identification substance, or what kind of quality the vinyl chloride resin molded body is.

また、塩化ビニル樹脂成形体が難燃性を有するので、半導体若しくは液晶が製造されている建屋などに火災が万一発生しても、当該難燃性塩化ビニル樹脂成形体は類焼することが少なく、この成形体から煙が発生したり、塩素ガスや塩化水素ガスなどの腐食性ガスの発生が抑制されて、これらによる工場内の煤やガスなどによる弊害をなくすことができる。   In addition, since the vinyl chloride resin molded product has flame retardancy, even if a fire occurs in a building where a semiconductor or a liquid crystal is manufactured, the flame retardant vinyl chloride resin molded product is rarely burnt down. Smoke is generated from the molded body, and generation of corrosive gases such as chlorine gas and hydrogen chloride gas is suppressed, thereby eliminating adverse effects caused by soot and gas in the factory.

以下、本発明の具体的な実施形態を図面に基づいて詳述するが、本発明はこれらに限定されるものではない。   Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings, but the present invention is not limited thereto.

図1は本発明の一実施形態を示す塩化ビニル樹脂成形体の断面図である。
この塩化ビニル樹脂成形体Ｐは、半導体若しくは液晶の製造に使用されるものであり、その内部に識別物質１を均一に分散させた一層構造の塩化ビニル樹脂板Ｐ１である。 FIG. 1 is a cross-sectional view of a vinyl chloride resin molded article showing an embodiment of the present invention.
This vinyl chloride resin molded product P is used for manufacturing a semiconductor or a liquid crystal, and is a single-layer vinyl chloride resin plate P1 in which the identification substance 1 is uniformly dispersed.

塩化ビニル樹脂板Ｐ１に用いられる塩化ビニル樹脂は、他の樹脂に比べて耐薬品性に優れ、２次加工が容易であるので、板状の形態では勿論のこと、これに曲げ、溶接、接着、真空成形、圧空成形などの２次加工を施して、洗浄槽や越流堰や装置外板やフランジやドレーンパンや排気ダクトやその他の各種部品などに組み込まれて、半導体製造装置、液晶製造装置の一部として用いられる。そして、これらの各製造装置を覆うカバーとしても使用されるし、クリーンルームと通路などを隔てる間仕切りとしても、或は他の部材にも使用される。しかし、これらの装置などが配置された建屋に万一火災が発生すると、該塩化ビニル樹脂の分解により煙やガスが発生し、この煙やガスにより建屋内の空気が汚れ、煤が製品（半導体など）に付着して不良品としたり、腐食性の塩素ガスや塩化水素ガスにより建屋内の製造装置や精密機械や製品を侵して使用不能にしてしまうので、自己消化性を有する塩化ビニル樹脂であっても、難燃性をさらに向上させ、火災時の難燃性と発煙抑制を向上させた難燃性塩化ビニル樹脂を使用することが好ましいのである。   The vinyl chloride resin used for the vinyl chloride resin plate P1 is excellent in chemical resistance compared to other resins and is easy to perform secondary processing. Of course, in the form of a plate, it is bent, welded and bonded. , Vacuum forming, pressure forming and other secondary processing, and are incorporated into washing tanks, overflow weirs, equipment outer plates, flanges, drain pans, exhaust ducts and other various parts, semiconductor manufacturing equipment, liquid crystal manufacturing Used as part of the device. And it is used also as a cover which covers each of these manufacturing apparatuses, and is used also as a partition which separates a clean room, a channel | path, etc., or another member. However, if a fire breaks out in the building where these devices are installed, smoke and gas are generated due to the decomposition of the vinyl chloride resin. Etc.) or corrosive chlorine gas or hydrogen chloride gas will damage the manufacturing equipment, precision machinery and products in the building and make it unusable. Even if it exists, it is preferable to use the flame-retardant vinyl chloride resin which improved the flame retardance further and improved the flame retardance and smoke suppression at the time of a fire.

この難燃性の一つの基準として、ＩＳＯ５６６０、ＡＳＴＭ Ｅ１３５４に基づくコーンカロリーメーターを用い、成形体の最大発熱速度を測定して判断する方法があるが、その速度を１２０ｋＷ/ｍ２以下にすることで実使用上問題のない難燃性を有するものとなる。このような難燃性を得るためには、塩化ビニル樹脂として、塩素化度が５８〜７３％の塩素化塩化ビニル樹脂、特に塩素化度が６４〜６５％の塩素化塩化ビニル樹脂を使用したり、塩素化度が５６〜５７％の通常の塩化ビニル樹脂に水酸化アルミニウムや水酸化マグネシウムやタルクなどの無機物を添加したり、モリブデン化合物を添加したり、リン系やハロゲン系や窒素系の難燃剤を添加したり、硫酸バリウムを併用したり、或はこれらを組合わせたりして難燃性を向上させた塩化ビニル樹脂を使用することが好ましい。 One standard for this flame retardancy is to use a cone calorimeter based on ISO 5660 and ASTM E1354 to measure and determine the maximum heat generation rate of the molded product, but the rate should be 120 kW / m 2 or less. Therefore, it has flame retardancy without problems in actual use. In order to obtain such flame retardancy, a chlorinated vinyl chloride resin having a chlorination degree of 58 to 73%, particularly a chlorinated vinyl chloride resin having a chlorination degree of 64 to 65% is used as the vinyl chloride resin. Or adding an inorganic substance such as aluminum hydroxide, magnesium hydroxide or talc to a normal vinyl chloride resin having a chlorination degree of 56 to 57%, adding a molybdenum compound, phosphorus-based, halogen-based or nitrogen-based It is preferable to use a vinyl chloride resin having improved flame retardancy by adding a flame retardant, using barium sulfate in combination, or combining them.

一方、塩化ビニル樹脂に均一に分散・混合される識別物質１は、一般に塩化ビニル樹脂に含有若しくは添加されない物質が使用される。このような識別物質１は、これにＸ線が照射されると特有の蛍光Ｘ線などが放射され、電磁波が照射されると特有の励起光（線スペクトル、蛍光など）などが放射される。そのため、識別物質１が含有されない塩化ビニル樹脂板は、この特有の蛍光Ｘ線や励起光が放射されないので、当該蛍光Ｘ線や励起光の検出の有無により識別できる。さらに、識別物質1を1種乃至複数種含む複数の塩化ビニル樹脂板Ｐ１同士であれば、蛍光Ｘ線や励起光の強度値やスペクトルの波長や強度などの特性を比較することで、識別物質の種類や含有量などを特定し、これらが含まれる塩化ビニル樹脂板Ｐ１を特定して識別できる。   On the other hand, the identification substance 1 uniformly dispersed and mixed in the vinyl chloride resin is generally a substance that is not contained or added to the vinyl chloride resin. Such identification substance 1 emits specific fluorescent X-rays and the like when irradiated with X-rays, and emits specific excitation light (such as a line spectrum and fluorescence) when irradiated with electromagnetic waves. Therefore, the vinyl chloride resin plate that does not contain the identification substance 1 can be identified by the presence or absence of detection of the fluorescent X-rays or excitation light because the specific fluorescent X-rays or excitation light is not emitted. Further, if a plurality of vinyl chloride resin plates P1 containing one or more kinds of identification substances 1 are used, the identification substances can be compared by comparing characteristics such as fluorescent X-ray and excitation light intensity values, spectral wavelengths and intensities. The vinyl chloride resin plate P1 containing these can be identified and identified.

この識別物質１の一例を挙げると、元素番号が３１から８８までの元素、例えばネオジム、プロメチウム、サマリウム、ユーロビウム、ガドリニウム、テルビウム、ホルミウムなどが、単独で或は２種以上を組合せて使用される。   As an example of this discriminating substance 1, elements having element numbers 31 to 88, such as neodymium, promethium, samarium, eurobium, gadolinium, terbium, holmium, etc. are used alone or in combination of two or more. .

また、他の識別物質１として、３ｄ軌道を有する遷移元素或は４ｆ軌道を有する希土類元素が添加された単結晶やガラス、４ｆ軌道を有する希土類元素、３ｄ軌道を有する遷移元素、或はこれらの錯体などが挙げられ、具体的には、酸化アルミニウムにクロムイオンを添加したもの、タングステン酸カルシウムやＹＡＧ結晶にネオジウムイオンまたはジスプロシウムを添加したもの、フッ化マグネシウムやフッ化亜鉛にフッ化カルシウム、フッ化バリウム、ニッケルイオン、コバルトイオンを添加したもの、ガラスにネオジウムイオン、イッテルビウムイオン、ホロミウムイオン、エルビウムイオンを添加したもの、酸化マグネシウムにマンガン、リチウムを添加したもの、希土類元素を含む錯体なども用いられる。   Further, as another discriminating substance 1, a single crystal or glass to which a transition element having a 3d orbital or a rare earth element having a 4f orbital is added, a rare earth element having a 4f orbital, a transition element having a 3d orbital, or these Specific examples include complexes containing aluminum oxide with chromium ions added, calcium tungstate and YAG crystals with neodymium ions or dysprosium added, magnesium fluoride and zinc fluoride with calcium fluoride, fluoride. Barium fluoride, nickel ion, cobalt ion added, glass added neodymium ion, ytterbium ion, holmium ion, erbium ion, magnesium oxide added manganese, lithium, complex containing rare earth elements, etc. Used.

さらに、識別物質１として蛍光剤も好ましく用いられる。この蛍光剤には有機蛍光剤と無機蛍光剤とがある。有機蛍光剤は透明塩化ビニル樹脂成形体を作製するために好ましく用いられ、具体的には、クマリン系樹脂、オキサゾール系樹脂、スチルベン系樹脂、ピラゾリン系樹脂、イミダゾロン系樹脂、シミダゾール系樹脂、トリアゾール系樹脂、ナフタルイミド系樹脂などが用いられる。   Furthermore, a fluorescent agent is also preferably used as the identification substance 1. This fluorescent agent includes an organic fluorescent agent and an inorganic fluorescent agent. The organic fluorescent agent is preferably used for producing a transparent vinyl chloride resin molded article, and specifically, a coumarin resin, an oxazole resin, a stilbene resin, a pyrazoline resin, an imidazolone resin, a imidazole resin, and a triazole resin. Resin, naphthalimide resin or the like is used.

また、無機蛍光剤としては、Ｙ２Ｏ２Ｓ：ＥＵ、Ｚｎ２ＧｅＯ４：Ｍｎ、ＢａＭｇ２Ａｌ１４Ｏ２７：Ｅｕ、ＺｎＯ：Ｚｎ、Ｓｒ５（ＰＯ４）３Ｃｌ：Ｅｕ、Ｙ２Ｏ２Ｓ：ＥＵ、Ｚｎ２ＧｅＯ４：Ｍｎ、ＢａＭｇ２Ａｌ１６Ｏ２７：Ｅｕ、３（Ｂａ、Ｍｇ）Ｏ．８Ａｌ２Ｏ３：Ｅｕ、Ｚｎ２ＳｉＯ４：Ｍｎ２＋、ＭｇＷＯ４、（Ｚｎ，Ｂｅ）２ＳｉＯ４：Ｍｎ２＋、Ｙ（Ｐ、Ｖ）Ｏ４：Ｅｕ、Ｙ２Ｏ３：Ｅｕ、（Ｙ、Ｇｄ）ＢＯ３：Ｅｕ、Ｙ２Ｏ２Ｓ：Ｅｕ、ＢａＭｇ２Ａｌ１０Ｏ１７：Ｅｕなどが挙げられる。 Examples of the inorganic fluorescent agent, Y 2 O 2 S: EU , Zn 2 GeO 4: Mn, BaMg 2 Al 14 O 27: Eu, ZnO: Zn, Sr 5 (PO 4) 3 Cl: Eu, Y 2 O 2 S: EU, Zn 2 GeO 4 : Mn, BaMg 2 Al 16 O 27 : Eu, 3 (Ba, Mg) O. 8Al 2 O 3 : Eu, Zn 2 SiO 4 : Mn 2+ , MgWO 4 , (Zn, Be) 2 SiO 4 : Mn 2+ , Y (P, V) O 4 : Eu, Y 2 O 3 : Eu, (Y , Gd) BO 3 : Eu, Y 2 O 2 S: Eu, BaMg 2 Al 10 O 17 : Eu, and the like.

そして、これらの無機蛍光剤にビストリフルオロメタンスルホニルイミドなどの熱失活抑制機能を有する有機物を被覆したもの、これらの無機蛍光剤にペンタエリスリトール−テトラキス［３−（３，５−ジ−ｔ−ブチル−４−ヒドロキシフェニル）プロピオネート］や２−（２−ヒドロキシベンゾトリアゾール−２−イル）−４−メンチル−６−（３，４，５，６−テトラヒドロフタルイミジルメチル）フェノールや２−ヒドロキシ−４−オクチロキシベンゾフェノンなどの光増感機能を有する有機物質を被覆させたものが特に好ましく用いられる。   These inorganic fluorescent agents are coated with an organic substance having a function of suppressing thermal deactivation such as bistrifluoromethanesulfonylimide, and these inorganic fluorescent agents are coated with pentaerythritol-tetrakis [3- (3,5-di-t- Butyl-4-hydroxyphenyl) propionate] or 2- (2-hydroxybenzotriazol-2-yl) -4-menthyl-6- (3,4,5,6-tetrahydrophthalimidylmethyl) phenol or 2-hydroxy Those coated with an organic substance having a photosensitizing function such as -4-octyloxybenzophenone are particularly preferably used.

これらの識別物質１は、一般には塩化ビニル樹脂には含有されていないし、添加・配合もされないので、Ｘ線や電磁波などのエネルギーを与えることで、これら識別物質１に起因して放射される特有の蛍光Ｘ線や励起光などの検出が容易であるし、これを含まない塩化ビニル樹脂板との識別も容易となる。また、塩化ビニル樹脂への影響も少なく、酸化物として容易に入手できるので経済的であるので好ましい。また、塩化ビニル樹脂への分散を均一に行なわせるために、１０μｍ以下の径を有する微粒子が特に好ましい。更に、その添加量も放射エネルギーの検出が行なえる量は含ませる必要があるが、余り多く含ませると塩化ビニル樹脂に悪影響を及ぼすので、０．１〜１０００ｐｐｍ、好ましくは０．５〜２００ｐｐｍの範囲で添加するのが好ましい。   These identification substances 1 are generally not contained in vinyl chloride resin, and are not added or blended. Therefore, by providing energy such as X-rays or electromagnetic waves, the identification substances 1 are radiated due to these identification substances 1. The fluorescent X-rays, excitation light, etc. can be easily detected, and it can be easily distinguished from the vinyl chloride resin plate not containing them. Moreover, since it has little influence on the vinyl chloride resin and can be easily obtained as an oxide, it is preferable because it is economical. In order to uniformly disperse the vinyl chloride resin, fine particles having a diameter of 10 μm or less are particularly preferable. Furthermore, it is necessary to include an amount that can detect the radiant energy, but adding too much will adversely affect the vinyl chloride resin, so 0.1 to 1000 ppm, preferably 0.5 to 200 ppm. It is preferable to add in a range.

なお、塩化ビニル樹脂には、成形に必要な安定剤や、品質を満たすために必要な添加などのように、成形や品質を得るために一般に添加される公知の添加剤は当然添加・使用される。このような添加剤としては、鉛系や錫系などの熱安定剤、滑剤、加工助剤、補強剤、抗酸化剤、紫外線吸収剤、着色剤、発泡剤、架橋剤、充填剤などがあり、必要な量が適宜添加される。   Of course, known additives that are generally added to obtain molding and quality, such as stabilizers necessary for molding and addition necessary to satisfy the quality, are naturally added to and used in the vinyl chloride resin. The Examples of such additives include heat stabilizers such as lead and tin, lubricants, processing aids, reinforcing agents, antioxidants, ultraviolet absorbers, colorants, foaming agents, crosslinking agents, and fillers. The necessary amount is added as appropriate.

このような識別物質１を含む塩化ビニル樹脂板Ｐ１にＸ線や電磁波や電子線や中性子や放射光や紫外線や赤外線などのエネルギーを照射すると、これらの識別物質１が励起して、これに特有の蛍光Ｘ線や特性Ｘ線や励起光や２次電子などのエネルギーを放射するので、これらは検出器で容易に検出できる。従って、略同じ色相で目視などでは識別できない塩化ビニル樹脂板同士であっても、識別物質１を含まない塩化ビニル樹脂板から当該特有の放射エネルギーを検出しないので、特有の放射エネルギーの検出の有無で識別物質１を含む塩化ビニル樹脂板Ｐ１とこれを含まない塩化ビニル樹脂板とを識別できる。   When the vinyl chloride resin plate P1 containing such a discriminating substance 1 is irradiated with energy such as X-rays, electromagnetic waves, electron beams, neutrons, radiated light, ultraviolet rays, infrared rays, etc., these discriminating substances 1 are excited and are unique to this. Since energy such as fluorescent X-rays, characteristic X-rays, excitation light, and secondary electrons is emitted, these can be easily detected by a detector. Accordingly, even if the vinyl chloride resin plates cannot be visually discriminated with substantially the same hue, the specific radiant energy is not detected from the vinyl chloride resin plate not including the identification substance 1, and therefore whether or not the specific radiant energy is detected. The vinyl chloride resin plate P1 containing the identification substance 1 can be discriminated from the vinyl chloride resin plate not containing it.

また、識別物質１を含む複数の塩化ビニル樹脂板同士であっても、この識別物質１の含有量を変えたり、異なる識別物質１を含ませることにより、放射エネルギーの強度値やスペクトルなどの特性が異なるので、個々の識別物質１の基礎データ（種類、含有量などに関する強度値、スペクトルなどの特性）と比較することで、各塩化ビニル樹脂板Ｐ１を特定することができる。
なお、ここで略同じ色相であるとは、人の目では外観上識別できない程度の色相を有することであり、ＪＩＳ Ｚ８７２９に定められるＬ＊ａ＊ｂ＊表色系における透過色相ａ＊及びｂ＊の各色相差が、共に−５〜＋５の範囲内であることをいう。 In addition, even among a plurality of vinyl chloride resin plates containing the identification substance 1, by changing the content of the identification substance 1 or including different identification substances 1, characteristics such as the intensity value and spectrum of radiant energy Therefore, each vinyl chloride resin plate P1 can be specified by comparing with the basic data (characteristics such as the intensity value and spectrum regarding the type and content) of the individual identification substances 1.
Note that “substantially the same hue” means that the hue is such that it cannot be recognized by the human eye, and the transmitted hues a * and b in the L * a * b * color system defined in JIS Z8729. Each hue difference of * is in the range of -5 to +5.

さらに具体的に述べると、Ｘ線を照射して識別する場合は、Ｘ線が照射された塩化ビニル樹脂板Ｐ１からは種々の蛍光Ｘ線が放射され、塩化ビニル樹脂板Ｐ１に含まれている識別物質１からも、これに特有の蛍光Ｘ線が放射される。これらの全ての蛍光Ｘ線のエネルギー値及び／又は強度値などの特性を受信し、その中から識別物質１から放射された蛍光Ｘ線のエネルギー値及び／又は強度値などを選別する。識別物質１が含まれている塩化ビニル樹脂板Ｐ１と識別物質を含まない塩化ビニル樹脂板とを識別するのであれば、この特有の蛍光Ｘ線の検出の有無により識別できる。しかし、識別物質１を1種乃至複数種含む複数の塩化ビニル樹脂板同士を識別するには、続いて、前記エネルギー値及び／又は強度値などの特性をコンピューターに送り、各識別物質１の基礎データ（エネルギー値及び／又は強度値などの特性）と比較させることで、識別物質１の種類及び／又は含有量或いは配合比を算出させ、各塩化ビニル樹脂板に含まれている識別物質１を特定し、当該各塩化ビニル樹脂板Ｐ１の品質を特定することができる。   More specifically, when identifying by irradiating X-rays, various fluorescent X-rays are emitted from the vinyl chloride resin plate P1 irradiated with X-rays and are included in the vinyl chloride resin plate P1. The fluorescent substance X specific to this is also emitted from the identification substance 1. The characteristics such as the energy value and / or intensity value of all these fluorescent X-rays are received, and the energy value and / or intensity value and the like of the fluorescent X-ray emitted from the identification substance 1 are selected from them. If the vinyl chloride resin plate P1 containing the discriminating substance 1 and the vinyl chloride resin plate not containing the discriminating substance are discriminated, they can be discriminated by the presence or absence of detection of this specific fluorescent X-ray. However, in order to discriminate between a plurality of vinyl chloride resin plates containing one or a plurality of discriminating substances 1, the characteristics such as the energy value and / or strength value are subsequently sent to a computer, and the basis of each discriminating substance 1 By comparing with data (characteristics such as energy value and / or strength value), the type and / or content or compounding ratio of the identification substance 1 is calculated, and the identification substance 1 contained in each vinyl chloride resin plate is calculated. The quality of each vinyl chloride resin plate P1 can be specified.

また、電磁波を照射して識別する場合は、ある波長の電磁波、例えば紫外線から赤外線までの波長領域の電磁波を塩化ビニル樹脂板に照射し、識別物質１から放射される特有の励起光（蛍光、線スペクトルなど、或いはこれらの波長、強度など）を検出する。なお、電磁波発生源としては、フラッシュランプやＬＥＤやレーザーやハロゲンランプ（キセノンフラッシュランプなど）などが用いられる。識別物質１が含まれている塩化ビニル樹脂板Ｐ１と識別物質を含まない塩化ビニル樹脂板とを識別するのであれば、この特有の励起光の検出の有無により識別できる。識別物質１を含む複数の塩化ビニル樹脂板Ｐ１を識別するには、続いて、この検出した励起光の情報をコンピーターに送り、ここで受信した励起光のスペクトル特性、即ちスペクトル波形、スペクトルのピーク波長やピーク波長における光強度やピーク波長近傍の波形（半値幅）、複数のピーク波長における光強度比、或は時間的な減衰特性などの特性を求め、当該コンピーターにて各識別物質１に関する基礎データ（各識別物質のスペクトル、時間的減衰特性などの特性）と比較することで、識別物質１の種類及び／又は含有量を特定して、塩化ビニル樹脂板Ｐ１の品質を特定することができる。   In the case of identifying by irradiating electromagnetic waves, an electromagnetic wave having a certain wavelength, for example, an electromagnetic wave in a wavelength region from ultraviolet to infrared is irradiated on the vinyl chloride resin plate, and the specific excitation light (fluorescence, A line spectrum or the like, or a wavelength or intensity thereof) is detected. As an electromagnetic wave generation source, a flash lamp, an LED, a laser, a halogen lamp (such as a xenon flash lamp), or the like is used. If the vinyl chloride resin plate P1 containing the discriminating substance 1 and the vinyl chloride resin plate not containing the discriminating substance are discriminated, they can be discriminated by the presence or absence of detection of this unique excitation light. In order to identify a plurality of vinyl chloride resin plates P1 containing the identification substance 1, subsequently, information of the detected excitation light is sent to the computer, where the spectral characteristics of the received excitation light, that is, the spectrum waveform, Characteristics such as the peak wavelength, the light intensity at the peak wavelength, the waveform near the peak wavelength (half-value width), the light intensity ratio at the plurality of peak wavelengths, or the temporal attenuation characteristics are obtained, and each identification substance 1 is obtained by the computer. Identifying the quality of the vinyl chloride resin plate P1 by identifying the type and / or content of the identification substance 1 by comparing with basic data (characteristics such as spectrum and time decay characteristics of each identification substance) Can do.

図２は本発明の他の実施形態の塩化ビニル樹脂成形体の断面図である。
この塩化ビニル樹脂成形体Ｐは、内層２の両面に外層３、３を積層一体化した塩化ビニル樹脂板Ｐ２である。そして、該内層２と外層３とは略同じ色相にされていると共に、内層２には識別物質１を含ませて、外層３には識別物質を含ませていない。そのため、外観的には、表裏両面と端面は略同じ単一の色相を有し、しかも端面であっても内層２と外層３、３とは略同じ色相を有して層別できない単一層となっている。 FIG. 2 is a cross-sectional view of a vinyl chloride resin molded body according to another embodiment of the present invention.
This vinyl chloride resin molded product P is a vinyl chloride resin plate P2 in which outer layers 3 and 3 are laminated and integrated on both surfaces of the inner layer 2. The inner layer 2 and the outer layer 3 have substantially the same hue, the inner layer 2 contains the identification substance 1, and the outer layer 3 does not contain the identification substance. Therefore, in terms of appearance, both the front and back surfaces and the end surface have substantially the same single hue, and the inner layer 2 and the outer layers 3 and 3 have substantially the same hue even at the end surface and cannot be separated into layers. It has become.

この塩化ビニル樹脂板Ｐ２の内層２、外層３に使用される塩化ビニル樹脂は、前記塩化ビニル樹脂板Ｐ１に使用された難燃性を有する塩化ビニル樹脂が使用され、内層２に含まれる識別物質１は前記塩化ビニル樹脂板Ｐ１に使用されたものと同じものが使用されるので、説明を省略する。   The vinyl chloride resin used for the inner layer 2 and the outer layer 3 of the vinyl chloride resin plate P2 is the flame retardant vinyl chloride resin used for the vinyl chloride resin plate P1, and the identification substance contained in the inner layer 2 Since 1 is the same as that used for the vinyl chloride resin plate P1, its description is omitted.

このような塩化ビニル樹脂板Ｐ２であっても、Ｘ線や電磁波などのエネルギーを照射すると、この塩化ビニル樹脂板Ｐ２の内層２に含まれる識別物質１から特有の蛍光Ｘ線や励起光などの放射エネルギーが放射される。この放射エネルギーを検出することで、識別物質１を含まない塩化ビニル樹脂板と識別できるし、前記エネルギー値及び／又は強度値やスペクトルや時間的な減衰特性などの特性を基礎データと比較することで、識別物質１を含む複数の塩化ビニル樹脂板同士を識別することができる。   Even when such a vinyl chloride resin plate P2 is irradiated with energy such as X-rays or electromagnetic waves, a unique fluorescent X-ray, excitation light, etc. from the identification substance 1 contained in the inner layer 2 of the vinyl chloride resin plate P2 Radiant energy is emitted. By detecting this radiant energy, it can be distinguished from a vinyl chloride resin plate that does not contain the identification substance 1, and the characteristics such as the energy value and / or intensity value, spectrum, and temporal attenuation characteristics are compared with basic data. Thus, a plurality of vinyl chloride resin plates including the identification substance 1 can be identified.

この実施形態では、内層２のみに識別物質１を含ませたが、外層３のみに含ませてもよいし、両層２，３に含ませてもよい。また層数は３層に限定されるものではなく、２層以上であれば何層でもよい。   In this embodiment, the identification substance 1 is included only in the inner layer 2, but it may be included only in the outer layer 3, or may be included in both layers 2 and 3. The number of layers is not limited to three, and any number of layers may be used as long as it is two or more.

上記各実施形態では、塩化ビニル樹脂板について記述したが、この塩化ビニル樹脂板を２次加工、例えば切断加工、曲げ加工、接着加工、溶接加工、真空成形、圧空成形、型押し成形などの公知の加工方法で、洗浄槽や越流堰や装置外板や排気ダクトやドレーンパンなどに加工した種々の異形形状の成形体であっても、これらの加工成形体を破損することなく、同様にして、Ｘ線や電磁波などのエネルギーを照射し、そこに含まれている識別物質から放射される特有の蛍光Ｘ線や励起光などの放射エネルギーを検出することで、略同じ色相を有する塩化ビニル樹脂成形体の品質を特定できて、他の塩化ビニル樹脂成形体と識別できる。   In each of the above embodiments, a vinyl chloride resin plate has been described. However, this vinyl chloride resin plate is publicly known such as secondary processing, such as cutting, bending, bonding, welding, vacuum forming, pressure forming, stamping, and the like. Even in the case of various irregular shaped products processed into washing tanks, overflow weirs, equipment outer plates, exhaust ducts, drain pans, etc., in the same way without damaging these processed products. By irradiating energy such as X-rays and electromagnetic waves, and detecting radiant energy such as specific fluorescent X-rays and excitation light emitted from the identification substances contained therein, vinyl chloride having substantially the same hue The quality of the resin molding can be specified, and can be distinguished from other vinyl chloride resin moldings.

また、塩化ビニル樹脂板や２次加工成形体のみならず、これらの端材であっても同様にエネルギーを照射することで、当該端材の品質を特定することができるので、再使用や回収などが容易になる。   Moreover, the quality of the end material can be specified by irradiating the energy in the same manner not only for the vinyl chloride resin plate and the secondary processed molded body, but also for the end material. Etc. becomes easier.

本発明の一実施形態に係る塩化ビニル樹脂成形体の断面図である。It is sectional drawing of the vinyl chloride resin molded object which concerns on one Embodiment of this invention. 本発明の他の実施形態に係る塩化ビニル樹脂成形体の断面図である。It is sectional drawing of the vinyl chloride resin molded object which concerns on other embodiment of this invention.

符号の説明Explanation of symbols

Ｐ 塩化ビニル樹脂成形体
Ｐ１、Ｐ２ 塩化ビニル樹脂板
１ 識別物質
２ 内層
３ 外層 P PVC molded body P1, P2 Vinyl chloride resin plate 1 Identification substance 2 Inner layer 3 Outer layer

Claims (5)

半導体若しくは液晶の製造に使用される略同じ色相の品質の異なる複数の塩化ビニル樹脂成形体を識別する方法であって、これらの塩化ビニル樹脂成形体の少なくとも1つに識別物質を含有させ、これら複数の塩化ビニル樹脂形成体にエネルギーを与えて、塩化ビニル樹脂成形体に含まれている識別物質を励起させ、当該識別物質から放射されるエネルギーを検出して、他の塩化ビニル樹脂成形体と識別することを特徴とする塩化ビニル樹脂成形体の識別方法。   A method for identifying a plurality of vinyl chloride resin molded products having substantially the same hue and different quality used in the manufacture of a semiconductor or liquid crystal, wherein at least one of these vinyl chloride resin molded products contains an identification substance, and these Energy is applied to a plurality of vinyl chloride resin molded bodies to excite the identification substance contained in the vinyl chloride resin molded body, and the energy radiated from the identification substance is detected. A method for identifying a vinyl chloride resin molded article, characterized by identifying. 塩化ビニル樹脂成形体にＸ線を照射して、当該塩化ビニル樹脂成形体に含まれる識別物質から発生した蛍光Ｘ線を検出し、その蛍光Ｘ線の強度値などの特性を比較することにより、他の塩化ビニル樹脂成形体と識別することを特徴とする請求項１に記載の塩化ビニル樹脂成形体の識別方法。   By irradiating the vinyl chloride resin molded body with X-rays, detecting fluorescent X-rays generated from the identification substance contained in the vinyl chloride resin molded body, and comparing characteristics such as the intensity value of the fluorescent X-ray, 2. The method for identifying a vinyl chloride resin molded article according to claim 1, wherein the molded article is distinguished from other vinyl chloride resin molded articles. 塩化ビニル樹脂成形体に電磁波を照射して、当該塩化ビニル樹脂成形体に含まれる識別物質から発生した励起光を検出し、その励起光のスペクトルなどの特性を比較することにより、他の塩化ビニル樹脂成形体と識別することを特徴とする請求項１に記載の塩化ビニル樹脂成形体の識別方法。   By irradiating the vinyl chloride resin molding with electromagnetic waves, detecting the excitation light generated from the identification substance contained in the vinyl chloride resin molding and comparing the characteristics such as the spectrum of the excitation light with other vinyl chloride The method for identifying a vinyl chloride resin molded article according to claim 1, wherein the molded article is identified as a resin molded article. 一方の塩化ビニル樹脂成形体には識別物質を含み、他方の塩化ビニル樹脂成形体には識別物質を含まない２種類の塩化ビニル樹脂成形体にエネルギーを照射し、一方の識別物質を含む塩化ビニル樹脂成形体から放射されるエネルギーを検出して、他方の塩化ビニル樹脂成形体と識別することを特徴とする請求項１もしくは請求項３のいずれかに記載の塩化ビニル樹脂成形体の識別方法。   One vinyl chloride resin molded article contains an identification substance, and the other vinyl chloride resin molded article does not contain an identification substance. Two types of vinyl chloride resin molded articles are irradiated with energy, and vinyl chloride containing one identification substance. 4. The method for identifying a vinyl chloride resin molded body according to claim 1, wherein energy radiated from the resin molded body is detected and distinguished from the other vinyl chloride resin molded body. 請求項１ないし請求項４のいずれかの識別方法に用いられる半導体若しくは液晶の製造の際に使用される塩化ビニル樹脂成形体であって、識別物質を含む塩化ビニル樹脂成形体が難燃性を有する塩化ビニル樹脂より形成されていることを特徴とする塩化ビニル樹脂成形体。   A vinyl chloride resin molded article used in the manufacture of a semiconductor or liquid crystal used in the identification method according to any one of claims 1 to 4, wherein the vinyl chloride resin molded article containing the identification substance has flame retardancy. A molded article of vinyl chloride resin, wherein the molded article is made of a vinyl chloride resin.
JP2005266923A 2005-09-14 2005-09-14 Discrimination method of vinyl chloride resin molded article, and vinyl chloride resin molded article used therefor Pending JP2007078521A (en)

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