JP2695232B2 - Method of manufacturing shatterproof fluorescent lamp - Google Patents
Method of manufacturing shatterproof fluorescent lampInfo
- Publication number
- JP2695232B2 JP2695232B2 JP9578989A JP9578989A JP2695232B2 JP 2695232 B2 JP2695232 B2 JP 2695232B2 JP 9578989 A JP9578989 A JP 9578989A JP 9578989 A JP9578989 A JP 9578989A JP 2695232 B2 JP2695232 B2 JP 2695232B2
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent lamp
- glass tube
- coating
- manufacturing
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Surface Treatment Of Glass (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は新規な飛散防止形蛍光灯の製造方法に関す
る。TECHNICAL FIELD The present invention relates to a method for manufacturing a novel shatterproof fluorescent lamp.
従来の技術 蛍光灯はガラス管を用いていることから、取り扱いを
あやまってガラス管を破損させた場合、ガラス片が飛散
り人身事故をおこすおそれがある。これに対処する方法
として、蛍光灯についてはガラス管の外面を例えば、ポ
リエステル樹脂等の高分子樹脂製の透明チューブで覆っ
た、いわゆる飛散防止形蛍光灯が公知である。これは熱
収縮タイプのポリエステル樹脂のチューブをガラス管に
被せ、ついでこのチューブを加熱処理することによりガ
ラス管外面に透明な高分子樹脂被膜を形成したものであ
る。2. Description of the Related Art Since a fluorescent lamp uses a glass tube, if the glass tube is damaged due to mishandling, glass fragments may scatter and cause personal injury. As a method of coping with this, a so-called shatterproof fluorescent lamp in which an outer surface of a glass tube is covered with a transparent tube made of a polymer resin such as polyester resin is known as a fluorescent lamp. In this, a glass tube is covered with a heat-shrinkable polyester resin tube, and then the tube is heat-treated to form a transparent polymer resin film on the outer surface of the glass tube.
発明が解決しようとする課題 従来の飛散防止形蛍光灯では耐候性，膜強度等を考慮
して前記のようにポリエステル樹脂製のチューブが用ら
れている。Problems to be Solved by the Invention In a conventional shatterproof fluorescent lamp, a tube made of polyester resin is used as described above in consideration of weather resistance, film strength and the like.
しかしながら、このチューブはチューブ加工の難しさ
が原因で価格が極めて高いうえに、完成した蛍光灯に手
作業でチューブを被せるという極めて作業性が悪い工程
が不可欠で、そのため飛散防止形蛍光灯は一般蛍光灯に
比べて高価なものになってしまうという問題があった。However, this tube is extremely expensive due to the difficulty of processing the tube, and it is indispensable to process the completed fluorescent lamp with the tube by hand, which is extremely inconvenient. There is a problem that it becomes more expensive than a fluorescent lamp.
本発明は上記の従来の問題点を解決するためになされ
たものであり、従来に比べ被膜形成が容易で、かつ作業
性のよい飛散防止蛍光灯の製造方法を提供するものであ
る。The present invention has been made in order to solve the above-mentioned conventional problems, and provides a method of manufacturing a shatterproof fluorescent lamp, which is easier to form a film and has better workability than conventional ones.
課題を解決するための手段 この目的を達成するために、本発明の飛散防止形蛍光
灯の製造方法は、ガラス管の外面に架橋構造をもつウレ
タンエラストマーを水に分散させたポリウレタン水分散
体を主成分とする塗布液を用いて透明な被膜を形成する
構成を有している。Means for Solving the Problems In order to achieve this object, the method for producing a shatterproof fluorescent lamp of the present invention is a polyurethane water dispersion prepared by dispersing a urethane elastomer having a crosslinked structure on the outer surface of a glass tube in water. It has a structure in which a transparent coating film is formed by using a coating liquid as a main component.
作用 本発明によると、ガラス管の外面に透明なポリウレタ
ン樹脂被膜を形成することにより、ガラス管の外面に飛
散防止用の被膜を塗布装置にて効率よく迅速かつ大量に
塗装できる。そして、ポリウレタン水分散体は有機溶剤
を含有しないため、環境汚染や火災の危険性がないうえ
に無黄変の強靭な被膜を形成する新規な被膜材料であ
る。Effects According to the present invention, by forming a transparent polyurethane resin coating on the outer surface of the glass tube, a coating for preventing scattering can be efficiently and quickly applied in large quantities by a coating device on the outer surface of the glass tube. Further, since the polyurethane water dispersion does not contain an organic solvent, it is a novel coating material which forms no toughening film without yellowing, without the risk of environmental pollution or fire.
実施例 ポリウレタン水分散体（第一工業製薬株式会社製：ス
ーパーフレックス−107）1500grの液中に水平保持した
直管形40ワット蛍光灯を浸したのち、100℃、5m/secの
温風で乾燥し、ガラス管の外面にポリウレタン樹脂から
なる透明な被膜を形成した。このようにして得られた蛍
光灯を用いて、次のような落下強度試験を行った。ま
ず、蛍光灯を水平に保ち、3mの高さからこれを自然落下
させたところ、ガラス管は破損したものの、被膜は破損
せず、ガラス片はこの被膜に強固に付着した状態になっ
ており、したがってガラス片は被膜で保護されて飛散る
ものは全くなかった。次に、耐衝撃試験として1mの長さ
の糸の端に付けた200grの鋼球を鉛直線から30度の角度
で蛍光灯に当てても被膜は全く破損しなかった。Example Polyurethane aqueous dispersion (Daiichi Kogyo Seiyaku Co., Ltd .: Superflex-107) After soaking a straight tube type 40 watt fluorescent lamp horizontally held in 1500 gr of liquid, 100 ° C, with warm air of 5 m / sec After drying, a transparent coating made of polyurethane resin was formed on the outer surface of the glass tube. Using the fluorescent lamp thus obtained, the following drop strength test was performed. First, keeping the fluorescent lamp horizontal and letting it fall naturally from a height of 3 m, the glass tube was broken, but the coating did not break, and the glass piece was firmly attached to this coating. Therefore, the glass piece was protected by the film and nothing scattered. Next, as a shock resistance test, even if a 200 gr steel ball attached to the end of a 1 m long thread was applied to a fluorescent lamp at an angle of 30 degrees from the vertical line, the coating was not damaged at all.
また、寿命テストとして10000時間点灯したところ、
本発明にかかる蛍光灯は黄色に着色せず問題のないとこ
ろが認められた。Also, when it was lit for 10,000 hours as a life test,
It was confirmed that the fluorescent lamp according to the present invention was not colored yellow and had no problem.
以上のように、本実施例によれば、ガラス管の外面に
透明な架橋構造をもつウレタンエラストマーからなるポ
リウレタン樹脂からなる被膜を塗布液を用いて形成する
ことにより、コストを従来に比べ1/10以下と大幅に低減
できる。As described above, according to the present embodiment, by forming a coating film made of a polyurethane resin made of a urethane elastomer having a transparent crosslinked structure on the outer surface of a glass tube using a coating solution, the cost is 1/1 It can be greatly reduced to 10 or less.
発明の効果 以上説明したように、本発明の方法によれば、ガラス
管の外面に架橋構造をもつウレタンエラストマーからな
るポリウレタン樹脂からなる透明被膜を形成することに
より、従来に比べて、ガラス管への飛散防止被膜の形成
が極めて容易となり、また材料費も安いことから、ラン
プコストを従来に比して大幅に低減することがてきる飛
散防止蛍光体を提供することができるものである。EFFECTS OF THE INVENTION As described above, according to the method of the present invention, by forming a transparent coating made of a polyurethane resin made of a urethane elastomer having a crosslinked structure on the outer surface of the glass tube, the glass tube becomes Since it is extremely easy to form the anti-scattering coating and the material cost is low, it is possible to provide the anti-scattering phosphor capable of significantly reducing the lamp cost as compared with the conventional one.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 天野 豊一 大阪府門真市大字門真1006番地 松下電 子工業株式会社内 (72)発明者 明星 稔 大阪府門真市大字門真1006番地 松下電 子工業株式会社内 (72)発明者 ▲高▼橋 睦夫 大阪府門真市大字門真1006番地 松下電 子工業株式会社内 (56)参考文献 特開 平２−18833（ＪＰ，Ａ) 特開 昭59−60943（ＪＰ，Ａ) 特開 昭60−71858（ＪＰ，Ａ) 特開 昭63−46257（ＪＰ，Ａ) 特公 昭56−21738（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toyoichi Amano 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Minoru Meisei 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co. Company (72) Inventor ▲ Takahashi Mutsuo 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A-2-18833 (JP, A) JP-A-59-60943 ( JP, A) JP 60-71858 (JP, A) JP 63-46257 (JP, A) JP 56-21738 (JP, B2)
Claims (1)
ンエラストマーを水に分散させたポリウレタン水分散体
を主成分とする塗布液を用いて透明な被膜を形成するこ
とを特徴とする飛散防止形蛍光灯の製造方法。1. A scattering prevention, characterized in that a transparent coating film is formed on the outer surface of a glass tube by using a coating solution containing a polyurethane water dispersion in which a urethane elastomer having a crosslinked structure is dispersed in water as a main component. Type fluorescent lamp manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9578989A JP2695232B2 (en) | 1989-04-14 | 1989-04-14 | Method of manufacturing shatterproof fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9578989A JP2695232B2 (en) | 1989-04-14 | 1989-04-14 | Method of manufacturing shatterproof fluorescent lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02273437A JPH02273437A (en) | 1990-11-07 |
| JP2695232B2 true JP2695232B2 (en) | 1997-12-24 |
Family
ID=14147223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9578989A Expired - Fee Related JP2695232B2 (en) | 1989-04-14 | 1989-04-14 | Method of manufacturing shatterproof fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2695232B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3803062B2 (en) * | 2001-12-27 | 2006-08-02 | 矢崎総業株式会社 | Vehicle indicating device |
| JP7339710B1 (en) * | 2022-10-25 | 2023-09-06 | 北斗制御株式会社 | SOLAR HEAT COLLECTOR AND MANUFACTURING METHOD THEREOF, SOLAR HOT WATER AND SOLAR HEATING DEVICE USING SOLAR HEAT COLLECTOR |
-
1989
- 1989-04-14 JP JP9578989A patent/JP2695232B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02273437A (en) | 1990-11-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |