JPS6343738B2 - - Google Patents

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Publication number
JPS6343738B2
JPS6343738B2 JP4603277A JP4603277A JPS6343738B2 JP S6343738 B2 JPS6343738 B2 JP S6343738B2 JP 4603277 A JP4603277 A JP 4603277A JP 4603277 A JP4603277 A JP 4603277A JP S6343738 B2 JPS6343738 B2 JP S6343738B2
Authority
JP
Japan
Prior art keywords
light
pigment
photosensitive materials
structural formula
safety light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP4603277A
Other languages
Japanese (ja)
Other versions
JPS53131039A (en
Inventor
Tooru Watanabe
Tetsuo Murakami
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.)
Mitsubishi Plastics Inc
Nippon Synthetic Chemical Industry Co Ltd
Original Assignee
Mitsubishi Plastics Inc
Nippon Synthetic Chemical Industry Co Ltd
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 Mitsubishi Plastics Inc, Nippon Synthetic Chemical Industry Co Ltd filed Critical Mitsubishi Plastics Inc
Priority to JP4603277A priority Critical patent/JPS53131039A/en
Publication of JPS53131039A publication Critical patent/JPS53131039A/en
Publication of JPS6343738B2 publication Critical patent/JPS6343738B2/ja
Granted legal-status Critical Current

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Description

【発明の詳細な説明】[Detailed description of the invention]

a 産業上の利用分野 本発明は着色螢光放電灯(いわゆるセーフテイ
ライト)、さらに詳しくは有機高分子系の感光性
材料の取扱いに際し、安全な光を供給する螢光灯
に関する。 b 従来技術 近年、各種有機、無機感光性材料を取扱う場
所、たとえば写真用暗室、集積回路製造工場の一
部などでは、それぞれ目的に合せた安全灯(セー
フテイライト)を使用している。 この安全灯には、白熱電球に色フイルターを組
み合せたもの、また電球ガラスを着色したり、そ
れに着色塗料を塗布したものなどが一般に使用さ
れている。 着色のため、塗料を用いたセーフテイライトに
おいては、一般にハロリン酸カルシウムととも
に、耐紫外線性を持ち、かつ螢光管製造の加熱処
理における耐熱性を有する硫化カドミウム系の無
機顔料が良く用いられている。 c 発明が解決しようとする課題 しかしながら、上記カドミウム系の無機顔料に
は、近年、環境問題、その他の周辺事情等によつ
てその使用に制限が加えられている。 また、有機高分子系の感光性材料の発展によつ
て2500Å〜5000Åにわたつて広い感光波長域を持
ち、かつ高感度の、例えば環化ポリブタジエンゴ
ム系感光性材料の如き製品が開発されたため、こ
れらを使用したとき、既存の黄色系のセーフテイ
ライトの下では、しばしばトラブルが生ずるよう
になつてきた。 本発明は、上述した課題に鑑みなされたもので
あつて、その目的は、カドミウム系の無機顔料に
代わり得る無公害の顔料で、しかも、高感度な有
機感光性材料の取扱いに際し支障がなく、しかも
明るい作業環境を得ることのできるセーフテイラ
イトを提供することにある。 d 課題を解決するための手段 本発明は、上述の課題を解決するため、種々の
試験、研究の結果、 構造式 で示される顔料と、 構造式 で示される顔料とを含有し、加熱による収縮する
高分子物質の薄板または薄膜によつて螢光放電灯
の外周面を被覆したセーフテイライトによつて上
記目的を達成し得ることが判明したことにより見
出したものである。 上記2種の顔料は任意の混合比で用いることが
できるが、2種を同時に用いることが必要で、い
ずれか一方を欠く場合は、目的とする効果が得ら
れない。 e 作用 添附図面の第1図は、感光性材料(環化ポリブ
タジエンゴム系)の分光感度曲線であり、また第
2図は、上記特定の2種の顔料を含有したチユー
ブで被覆した本発明にかかる白色螢光灯の分光分
布曲線Aである。 第2図によると、本発明のセーフテイライトは
5000Åより短波長の光が完全に遮断されているこ
とがわかる。また市販のセーフテイライトの分光
分布曲線Bを比較のため合せて示したが、市販の
セーフテイライトと、本発明のセーフテイライト
の分光分布の差は明確であり、市販のセーフテイ
ライトは4500Å〜5000Åの波長の光が環化ポリブ
タジエンゴム系のような高感度の感光性材料に対
し悪影響を及ぼすことがわかる。なお本発明のセ
ーフテイライトと、市販のセーフテイライトとは
5000Å〜7000Åの可視部の比強度にはほとんど差
がなく、作業環境の明るさの点では問題とはなら
ないことが判明した。 以上のことから、本発明において使用する上記
2種の顔料は、例えば環化ポリブタジエンゴムを
主成分とするような、2500Å〜5000Åの範囲に感
光波長域を持ち、かつ高感度な感光性材料を支障
なく取扱うことが可能な作業環境を、容易に作る
ことができる。 また、本発明において使用する上記特定の2種
の顔料は、5000Åより長波長の、いわゆる5000Å
〜7000Åの可視光線をあまり吸収せず、透過率の
高いものであるため、感光性材料に支障を与える
ことなく、明るい作業環境を得ることができる。 f 発明の具体的構成 構造式 で示される顔料と、 構造式 で示される顔料は、高分子物質に均一に混合され
たのち、数ミリメートル以下の厚さのシート状に
なつて螢光灯をカバーする。 上記2種の顔料は任意の混合比で用いることが
でき、これら顔料の高分子物質に対する所要含有
量は、シートの厚さ等に関係するが、0.5mmの厚
さで約1%以上の顔料の添加を必要とする。この
際、高分子物質としては塩化ビニル重合体、ポリ
エステル樹脂、または透明性のよいゴムなどを用
いることができるが、加熱により収縮するプラス
チツクのチユーブの使用が工程上などから有効で
ある。 また、高分子物質は、紫外線による劣化を防止
するため紫外線吸収剤を含有することが好まし
い。紫外線吸収剤としては一般のベンゾフエノン
系、ベンゾイル系その他の化学薬品の使用が可能
である。 前記目的にかなうセーフテイライトを作成する
最も有効で、かつ容易な方法として、加熱により
収縮する高分子物質を基材とし、これに紫外線吸
収剤と上記顔料を均一に混合したものを調製し、
所定の螢光放電灯の外径よりやゝ大なる内径を有
するチユーブを成型し、これに螢光灯を挿入した
のち、加熱してチユーブを収縮、螢光灯外周面に
密着させる方法が挙げられる。 この方法によれば、螢光灯表面を容易に、かつ
均一に吸収遮断膜で被覆することが可能であり、
さらに被覆する膜の厚さ、吸収剤である顔料の含
有量など広い範囲での選択も容易である。 また螢光灯の発熱に対しても十分に使用に耐
え、螢光灯への外力に対する保護効果を発揮する
ことができ、仮に螢光灯が割れた場合にも、ガラ
スが飛び散ることが全くないという効果をも有す
る。 g 実施例 以下、実施例1、2により本発明を詳細に説明
する。 実施例 1 軟質の塩化ビニル重合体(100部)に可塑剤
(30部)および安定剤(2部)、紫外線吸収剤
(0.2部)と共に、ビスアゾイエロー系の顔料
(PV YELLOW HIOG、構造式 のもの80重量%と、PV YELLOW HR、構造式 のもの20重量%の混合物)(2.5部)を混合し、白
色螢光放電灯(たとえば日本電気製、FLR−40.
SW/M)の外径より、約10〜20%程度大きな内
径を有するチユーブ状に成型する。このチユーブ
の厚さは0.3〜0.5mm位とする。このチユーブに放
電灯をその一端より挿入したのち、熱風乾燥機に
て加熱収縮させることにより放電灯に密着させ
る。 得られたセーフテイライトは、7000時間使用後
にも当初の性能が低下することがなかつた。また
軽い衝撃を与えても割れることがなく、さらに強
い衝撃によつて割れた場合には全くガラス片が飛
びちることがなかつた。 実施例 2 実施例1で用いた基材に、実施例1と同じ混合
比の顔料1部を混合し、チユーブ状に成型(厚さ
0.3〜0.5mm)したもので市販のセーフテイライト
(たとえば三菱電機製FL−40.Y−F)を被覆密
着させた。 以上の実施例に従つて得られたセーフテイライ
トの下に、感光性材料(環化ポリブタジエンゴム
系)を光源より3cmの距離に置き、15時間放置
し、感光性材料の露光カブリの状態から、本実施
例のセーフテイライトから放出される光の感光性
材料に対する安全性を判定した。結果を比較例と
ともに表1に示した。
a. Field of Industrial Application The present invention relates to a colored fluorescent discharge lamp (so-called safety light), and more particularly to a fluorescent lamp that provides safe light when handling organic polymer-based photosensitive materials. B. Prior Art In recent years, safety lights have been used in places where various organic and inorganic photosensitive materials are handled, such as photographic darkrooms and parts of integrated circuit manufacturing factories. These safety lights generally include those that combine an incandescent light bulb with a color filter, or those that have colored light bulb glass or colored paint applied to it. For coloring, cadmium sulfide-based inorganic pigments, which are resistant to ultraviolet light and heat resistant in the heat treatment used to manufacture fluorescent tubes, are often used along with calcium halophosphate for coloring. . c. Problems to be Solved by the Invention However, in recent years, restrictions have been placed on the use of the above-mentioned cadmium-based inorganic pigments due to environmental problems and other surrounding circumstances. Furthermore, with the development of organic polymer-based photosensitive materials, products with a wide photosensitive wavelength range of 2500 Å to 5000 Å and high sensitivity, such as cyclized polybutadiene rubber-based photosensitive materials, have been developed. When these are used, troubles often occur under existing yellow-colored safety lights. The present invention has been made in view of the above-mentioned problems, and its purpose is to provide a pollution-free pigment that can replace cadmium-based inorganic pigments, and which does not pose any problem in handling highly sensitive organic photosensitive materials. Moreover, the purpose is to provide a safety light that can provide a bright working environment. d Means for Solving the Problems In order to solve the above-mentioned problems, the present invention, as a result of various tests and research, has the following structural formula: The pigment shown by and the structural formula It has been found that the above object can be achieved by safety light in which the outer circumferential surface of a fluorescent discharge lamp is covered with a thin plate or thin film of a polymer substance that contains a pigment represented by the formula and shrinks when heated. This was discovered by The above two types of pigments can be used in any mixing ratio, but it is necessary to use the two types at the same time, and if either one is missing, the desired effect cannot be obtained. e Effect Figure 1 of the attached drawings shows the spectral sensitivity curve of the photosensitive material (cyclized polybutadiene rubber), and Figure 2 shows the spectral sensitivity curve of the photosensitive material (cyclized polybutadiene rubber), and Figure 2 shows the spectral sensitivity curve of the photosensitive material (cyclized polybutadiene rubber). This is a spectral distribution curve A of such a white fluorescent lamp. According to FIG. 2, the safety light of the present invention is
It can be seen that light with wavelengths shorter than 5000 Å is completely blocked. In addition, the spectral distribution curve B of commercially available Safetylite is also shown for comparison, but there is a clear difference in the spectral distribution between the commercially available Safetylite and the Safetylite of the present invention. It can be seen that light with a wavelength of 4500 Å to 5000 Å has an adverse effect on highly sensitive photosensitive materials such as cyclized polybutadiene rubber systems. What is the safety light of the present invention and the commercially available safety light?
It was found that there was almost no difference in the specific intensity in the visible region between 5000 Å and 7000 Å, and there was no problem in terms of brightness in the working environment. From the above, the above two types of pigments used in the present invention are highly sensitive photosensitive materials that have a photosensitive wavelength range in the range of 2500 Å to 5000 Å and that have cyclized polybutadiene rubber as a main component. It is possible to easily create a work environment that allows for trouble-free handling. Furthermore, the above two specific pigments used in the present invention have wavelengths longer than 5000 Å, so-called 5000 Å
Since it does not absorb much visible light of ~7000 Å and has high transmittance, it can provide a bright working environment without disturbing photosensitive materials. f Specific configuration of the invention Structural formula The pigment shown by and the structural formula The pigment shown is uniformly mixed with a polymeric material and then formed into a sheet with a thickness of several millimeters or less to cover the fluorescent lamp. The above two types of pigments can be used in any mixing ratio, and the required content of these pigments in the polymer substance is related to the thickness of the sheet, etc., but at a thickness of 0.5 mm, approximately 1% or more of the pigment Requires the addition of At this time, vinyl chloride polymer, polyester resin, rubber with good transparency, etc. can be used as the polymer material, but it is effective from the viewpoint of the process to use a plastic tube that shrinks when heated. Further, the polymer substance preferably contains an ultraviolet absorber to prevent deterioration due to ultraviolet rays. As the ultraviolet absorber, it is possible to use general benzophenone-based, benzoyl-based, and other chemicals. The most effective and easiest method to create a safety light that meets the above purpose is to use a polymeric material that shrinks when heated as a base material, and to prepare a uniform mixture of an ultraviolet absorber and the above-mentioned pigment,
One method is to mold a tube with an inner diameter slightly larger than the outer diameter of a prescribed fluorescent discharge lamp, insert a fluorescent lamp into it, and then heat it to shrink the tube and bring it into close contact with the outer circumferential surface of the fluorescent lamp. It will be done. According to this method, it is possible to easily and uniformly coat the surface of the fluorescent lamp with the absorption blocking film,
Furthermore, it is easy to select the thickness of the coating film, the content of the pigment as an absorbent, etc. within a wide range. In addition, it can withstand the heat generated by the fluorescent lamp and has a protective effect against external forces applied to the fluorescent lamp, so even if the fluorescent lamp breaks, the glass will not scatter at all. It also has this effect. g Examples Hereinafter, the present invention will be explained in detail using Examples 1 and 2. Example 1 A bisazo yellow pigment (PV YELLOW HIOG, structural formula: 80% by weight, PV YELLOW HR, structural formula (20% by weight mixture) (2.5 parts) and a white fluorescent discharge lamp (for example, NEC, FLR-40).
SW/M) is molded into a tube shape with an inner diameter approximately 10 to 20% larger than the outer diameter. The thickness of this tube is approximately 0.3 to 0.5 mm. After inserting a discharge lamp into this tube from one end, it is heated and shrunk in a hot air dryer to make it tightly adhere to the discharge lamp. The resulting safety light did not lose its original performance even after 7,000 hours of use. Furthermore, it did not break even when subjected to a light impact, and even when it broke due to a strong impact, no glass fragments flew off. Example 2 The base material used in Example 1 was mixed with 1 part of pigment in the same mixing ratio as in Example 1, and molded into a tube shape (thickness:
0.3 to 0.5 mm), and a commercially available safety light (for example, FL-40.Y-F manufactured by Mitsubishi Electric) was coated and adhered. Under the safety light obtained according to the above example, a photosensitive material (cyclized polybutadiene rubber) was placed at a distance of 3 cm from the light source and left for 15 hours to remove the exposure fog on the photosensitive material. The safety of the light emitted from the safety light of this example with respect to photosensitive materials was determined. The results are shown in Table 1 along with comparative examples.

【表】 表1より、本実施例によるセーフテイライト
は、環化ポリブタジエンゴム系のような高感度の
感光性材料に対しても、安全である光を放出して
いることがわかる。 h 発明の効果 本発明は、上述の如く、セーフテイライトに使
用する顔料として、 構造式 で示される顔料と 構造式 で示される顔料とを使用したため、従来使用され
ていたカドミウム系の無機顔料と異なり、環境汚
染の憂いが全くないセーフテイライトを提供する
ことができる。 また、上述した特定2種の顔料の混合物は、
5000Åより短波長の光を確実に吸収し、しかも
5000Åより長波長の、いわゆる5000Å〜7000Åの
可視光線をあまり吸収せず、透過率の高いもので
あつたため、例えば、近年使用されている環化ポ
リブタジエンゴム系感光性材料の如き、高感度の
材料に対してもカブリの全く生じない安全な光を
提供することができると共に、その作業環境も、
感光性材料の取扱いに支障が生じない明るい作業
環境とすることができる。 さらに、この特定2種の顔料の混合物を使用し
たセーフテイライトは、試験の結果、長時間の使
用後にも上記した性能が低下することがなく、安
定した性能を有するセーフテイライトを提供し得
るものであることが判明した。 また、本発明のセーフテイライトは、熱収縮性
の高分子物質で螢光灯の外周面を被覆する構造と
したため、螢光灯表面に容易かつ均一に吸収遮断
膜を形成することが可能であり、さらに被覆する
膜の長さ、吸収剤である上記特定2種の顔料の含
有量など広い範囲での選択が容易となり、また螢
光灯の発熱に対しても十分に耐え、螢光灯の外力
に対する保護効果を発揮することができ、仮に螢
光灯が割れた場合にも、ガラスが飛び散ることが
全くないという効果をも有する。
Table 1 shows that the safety light according to this example emits light that is safe even for highly sensitive photosensitive materials such as cyclized polybutadiene rubber. h Effects of the Invention As described above, the present invention provides pigments for use in safety light that have the structural formula: Pigment and structural formula shown by Since the pigment represented by is used, unlike the conventionally used cadmium-based inorganic pigments, it is possible to provide safe light with no concerns about environmental pollution. In addition, the mixture of the two specific pigments mentioned above is
It reliably absorbs light with wavelengths shorter than 5000 Å, and
Because it did not absorb much visible light with a wavelength longer than 5000 Å, so-called 5000 Å to 7000 Å, and had a high transmittance, it could be used as a highly sensitive material, such as the cyclized polybutadiene rubber photosensitive material that has been used in recent years. It is possible to provide safe light that does not cause any fogging, and also to improve the working environment.
It is possible to create a bright work environment that does not pose any hindrance to the handling of photosensitive materials. Furthermore, tests have shown that the above-mentioned performance does not deteriorate even after long-term use, and the safety light using a mixture of these two specific pigments can provide a safe light with stable performance. It turned out to be something. In addition, the safety light of the present invention has a structure in which the outer peripheral surface of the fluorescent lamp is coated with a heat-shrinkable polymer material, so that an absorption blocking film can be easily and uniformly formed on the surface of the fluorescent lamp. Furthermore, it is easy to select from a wide range of factors such as the length of the coating film and the content of the two specific pigments mentioned above as absorbers. It can exhibit a protective effect against external forces, and even if the fluorescent lamp breaks, it has the effect that the glass will not scatter at all.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は感光性材料(環化ポリブタジエンゴム
系)の分光感度曲線、第2図は本発明により作成
されたチユーブで被覆した白色螢光灯の分光分布
曲線Aである。
FIG. 1 shows a spectral sensitivity curve of a photosensitive material (cyclized polybutadiene rubber), and FIG. 2 shows a spectral distribution curve A of a white fluorescent lamp coated with a tube prepared according to the present invention.

Claims (1)

【特許請求の範囲】 1 螢光放電灯の外周面を、 構造式 で示される顔料と 構造式 で示される顔料とを含有し、加熱により収縮する
高分子物質の薄板または薄膜によつて被覆してな
る、5000Åより短波長の光を放出しない、有機高
分子系感光性材料用セーフテイライト。 2 高分子物質が塩化ビニル系重合体である特許
請求の範囲第1項記載の有機高分子系感光性材料
用セーフテイライト。
[Claims] 1. The outer peripheral surface of the fluorescent discharge lamp is defined by the following structural formula: Pigment and structural formula shown by A safety light for organic polymer photosensitive materials, which does not emit light with a wavelength shorter than 5000 Å, and is coated with a thin plate or thin film of a polymer material that shrinks when heated, and contains a pigment represented by the following formula. 2. The safety light for organic polymeric photosensitive materials according to claim 1, wherein the polymeric substance is a vinyl chloride polymer.
JP4603277A 1977-04-21 1977-04-21 Safety light for use in organic macromolecure system sensitive material Granted JPS53131039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4603277A JPS53131039A (en) 1977-04-21 1977-04-21 Safety light for use in organic macromolecure system sensitive material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4603277A JPS53131039A (en) 1977-04-21 1977-04-21 Safety light for use in organic macromolecure system sensitive material

Publications (2)

Publication Number Publication Date
JPS53131039A JPS53131039A (en) 1978-11-15
JPS6343738B2 true JPS6343738B2 (en) 1988-09-01

Family

ID=12735690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4603277A Granted JPS53131039A (en) 1977-04-21 1977-04-21 Safety light for use in organic macromolecure system sensitive material

Country Status (1)

Country Link
JP (1) JPS53131039A (en)

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US10832518B2 (en) 2012-04-12 2020-11-10 Acres Technology Communicating information about networked gaming machines to prospective players
US11373477B2 (en) 2012-04-12 2022-06-28 Acres Technology Communicating information about networked gaming machines to prospective players
US10593151B2 (en) 2013-06-13 2020-03-17 Patent Investment & Licensing Company System to dispatch casino agents to an electronic gaming machine in response to a predefined event at the electronic gaming machine
US10909803B2 (en) 2013-08-06 2021-02-02 Acres Technology Method and system for dispatching casino personnel and tracking interactions with players

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