JP2909103B2 - Photosensitive solution recovery method - Google Patents
Photosensitive solution recovery methodInfo
- Publication number
- JP2909103B2 JP2909103B2 JP23211089A JP23211089A JP2909103B2 JP 2909103 B2 JP2909103 B2 JP 2909103B2 JP 23211089 A JP23211089 A JP 23211089A JP 23211089 A JP23211089 A JP 23211089A JP 2909103 B2 JP2909103 B2 JP 2909103B2
- Authority
- JP
- Japan
- Prior art keywords
- photosensitive solution
- photosensitive
- tank
- viscosity
- solution
- 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
- Conversion Of X-Rays Into Visible Images (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） この発明はカラー受像管蛍光スクリーン例えばそのブ
ラックマトリックスホールの形成時、感光溶液を被塗布
物受像管パネル内面に塗布、送液、循環、回収を行う方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention applies a photosensitive solution to an inner surface of a picture tube panel to be coated when forming a color picture tube fluorescent screen, for example, a black matrix hole thereof. The present invention relates to a method for performing liquid, circulation, and recovery.
（従来の技術） 一般にカラー受像管蛍光面はガラスパネルを固定した
キャリアをループ状に配設し所定のサイクルタイムで順
次、移動させるライン化した自動機によって製造されて
いる。そしてこのカラー受像管蛍光面の製造工程におい
ては、感光性結合剤、例えばポリビニールアルコールPV
Aと重クロム酸アンモニウムを主成分とする水溶液を用
いて、これをガラスパネル内面に塗布、乾燥した後、露
光装置により色選択電極としてのシャドウマスクを介し
て所望の位置に所定の大きさのドットまたはストライプ
（以下ドットという）を形成する。然る後、黒鉛塗料を
塗布、乾燥し過酸化水素水を用いて前記のドットを分解
し温水現像後パネル内面にマトリックスホールを形成す
る。(Prior Art) In general, the fluorescent screen of a color picture tube is manufactured by a lined automatic machine in which a carrier to which a glass panel is fixed is arranged in a loop and sequentially moved at a predetermined cycle time. And in the manufacturing process of this color picture tube fluorescent screen, a photosensitive binder such as polyvinyl alcohol PV
Using an aqueous solution containing A and ammonium bichromate as main components, apply it to the inner surface of the glass panel, dry it, and then expose it to a desired position through an exposure device through a shadow mask as a color selection electrode. A dot or a stripe (hereinafter referred to as a dot) is formed. Thereafter, a graphite paint is applied and dried, and the dots are decomposed using a hydrogen peroxide solution, and after hot water development, a matrix hole is formed on the inner surface of the panel.
このようなスクリーン面の形成に用いる材料は塗布工
程における過剰分は、これを回収し所要の組成調整を行
って再び感光溶液として使用するのが一般的である。In general, the excess of the material used for forming such a screen surface in the coating step is collected, adjusted to the required composition, and used again as a photosensitive solution.
すなわち、感光溶液はフィラータンクから感光溶液を
撹拌するマティアタンクに補給され、このタンクに組込
まれたポンプによりノズルに送り出されて一定量の感光
溶液がパネルのスクリーン面に供給される。この感光溶
液の塗布で生じた余剰感光溶液はパネルを覆う回収皿で
回収されマティアタンクに戻される。以上の感光溶液塗
布循環は閉回路で行われる。That is, the photosensitive solution is supplied from a filler tank to a matia tank for stirring the photosensitive solution, and is sent out to a nozzle by a pump incorporated in this tank, so that a fixed amount of the photosensitive solution is supplied to the screen surface of the panel. Excess photosensitive solution generated by the application of the photosensitive solution is collected in a collecting dish covering the panel and returned to the matia tank. The above-described photosensitive solution application circulation is performed in a closed circuit.
（発明が解決しようとする課題） 以上の従来の感光溶液循環系においては、比較的低粘
度の感光溶液を使用する限り十分に機能する。しかし近
年、中高精細のディスプレイ用ブラウン管が大量生産さ
れるようになり、一般民生用ブラウン管の製造ラインで
同時に混合生産をすることが要求されるようになってき
た。周知のように一般民生用のスクリーン構造は、比較
的ドット寸法が粗く薄い感光膜でもスクリーンの製造技
術は容易である。一方、中高精細スクリーンはドット寸
法が0.31mm以下と極めて微細でしかも寸法の精度が厳し
く、厚い感光膜の形成が必要になる。従って同一の感光
溶液で製造条件を設定することは技術的に困難が伴う。
その解決策として感光溶液の粘度を二系列として例えば
民生用の感光溶液は粘度を低粘度の15CPS、中高精細用
の感光溶液は粘度を21CPSの高粘度として二系列として
塗り分けることにより、それぞれ製造条件の幅が拡大し
同時混合生産が可能となる。(Problems to be Solved by the Invention) The above-mentioned conventional photosensitive solution circulation system functions sufficiently as long as a relatively low-viscosity photosensitive solution is used. However, in recent years, CRTs for display of medium to high definition have been mass-produced, and it has been required to perform mixed production simultaneously on a production line of CRTs for general use. As is well known, in a general consumer screen structure, a screen manufacturing technique is easy even with a thin photosensitive film having a relatively coarse dot size. On the other hand, a medium-high-definition screen has an extremely fine dot size of 0.31 mm or less and has strict dimensional accuracy, and requires the formation of a thick photosensitive film. Therefore, it is technically difficult to set the manufacturing conditions with the same photosensitive solution.
As a solution to this, the viscosity of the photosensitive solution is divided into two lines, for example, a photosensitive solution for consumer use has a low viscosity of 15 CPS , and a photosensitive solution for medium and high definition has a high viscosity of 21 CPS , and is separately applied as two lines. In each case, the range of manufacturing conditions is expanded, and simultaneous mixed production becomes possible.
ところが前記の感光溶液の循環系の中で粘度の高い感
光溶液の方はディスプレイ用として用いるが、生産数の
変動、パネルの大きさ等の要因で感光溶液の粘度調整が
大変難しい。粘度は感光膜厚に相関し民生用感光溶液の
粘度のバラツキが±0.5CPSで良好なのに対しディスプレ
イ用感光溶液は±o.1CPSの変動しか許容できない。つま
り塗布前のガラスパネル内に存在する微量の洗浄水、ガ
ラスパネルの温度等の影響を受けて、回収感光溶液の粘
度が大幅に変化し、注入用マティアタンクおよび供給用
フィラータンクの粘度調整のみで対応することが難し
い。However, in the circulation system of the photosensitive solution, a photosensitive solution having a high viscosity is used for a display, but it is very difficult to adjust the viscosity of the photosensitive solution due to factors such as fluctuations in the number of products produced and the size of the panel. The viscosity is correlated with the thickness of the photosensitive film, and the variation of the viscosity of the commercial photosensitive solution is as good as ± 0.5 CPS , while the photosensitive solution for displays can only tolerate a variation of ± 0.1 CPS . In other words, the viscosity of the recovered photosensitive solution changes drastically due to the effects of a small amount of washing water existing in the glass panel before application and the temperature of the glass panel, and only the viscosity adjustment of the injection matia tank and the supply filler tank is performed. It is difficult to deal with.
本発明は以上の点を考慮してなされたもので、感光膜
厚を異にするスクリーン形成における複数系列の感光溶
液の塗布時の感光溶液の回収、調整を容易にした感光溶
液の回収方法を得るものである。The present invention has been made in view of the above points, and provides a method for collecting a photosensitive solution that facilitates adjustment and recovery of a photosensitive solution at the time of applying a plurality of series of photosensitive solutions in forming a screen having a different photosensitive film thickness. What you get.
［発明の構成］ （課題を解決するための手段） 感光膜厚を異にする少なくとも２種類のカラー受像管
パネルの蛍光スクリーン感光膜の塗布に際し、 前記感光膜厚に対応して低粘度に調整した低粘度感光
溶液を第１のフィラータンクに収容し、第１のフィラー
タンクからの低粘度感光溶液を第１のマティアタンクで
調整し、第１のマティアタンクからの感光溶液をノズル
により第１のパネル面に供給し、塗布後の過剰感光溶液
を回収して、再塗布のために前記第１のマティアタンク
に戻し、 前記感光膜厚に対応した高低粘度に調整した高低粘度
感光溶液を第２のフィラータンクに収容し、第２のフィ
ラータンクからの高低粘度感光溶液を第２のマティアタ
ンクで調整し、第２のマティアタンクからの感光溶液を
ノズルにより感光膜厚を異にする第２のパネル面に供給
し、塗布後の過剰感光溶液を回収する感光溶液の回収方
法において、 前記高粘度感光溶液を塗布する前記第２のパネルから
回収する過剰感光溶液を回収後、溶媒で希しゃくして低
粘度感光溶液の前記第１のマティアタンクに供給するこ
ようにしたことを特徴とする感光溶液の回収方法にあ
る。[Means for Solving the Problems] When coating the fluorescent screen photosensitive films of at least two types of color picture tube panels having different photosensitive film thicknesses, the viscosity is adjusted to be low according to the photosensitive film thicknesses. The obtained low-viscosity photosensitive solution is accommodated in a first filler tank, the low-viscosity photosensitive solution from the first filler tank is adjusted in a first Matia tank, and the photosensitive solution from the first Matia tank is supplied to a first filler tank by a nozzle. And recovering the excess photosensitive solution after application, returning the excess photosensitive solution to the first matia tank for reapplication, and adjusting the high / low viscosity photosensitive solution adjusted to high / low viscosity corresponding to the photosensitive film thickness. And the high and low viscosity photosensitive solution from the second filler tank is adjusted in the second Matia tank, and the photosensitive solution from the second Matia tank is made to have a different photosensitive film thickness by a nozzle. A method for collecting the excess photosensitive solution after supplying the high-viscosity photosensitive solution from the second panel to which the high-viscosity photosensitive solution is applied. And supplying the low-viscosity photosensitive solution to the first matia tank.
（作 用） 本発明の感光溶液の回収方法によれば、高粘度感光溶
液系列の回収感光溶液を低粘度に調整後、低粘度感光溶
液系列のマティアタンクに供給し、低粘度感光溶液の塗
布用に再利用する。高粘度感光溶液系列ではフィラータ
ンクから未使用感光溶液が高粘度系列のマティアタンク
に補給される。(Operation) According to the method for recovering a photosensitive solution of the present invention, the recovered photosensitive solution of the high-viscosity photosensitive solution series is adjusted to have a low viscosity, and then supplied to the matia tank of the low-viscosity photosensitive solution series to apply the low-viscosity photosensitive solution. Reuse for In the high-viscosity photosensitive solution series, an unused photosensitive solution is supplied from the filler tank to the high-viscosity series Matia tank.
（実施例） 以下、本発明の実施例を第１図により説明する。(Example) Hereinafter, an example of the present invention will be described with reference to FIG.
カラー受像管パネルの蛍光スクリーン感光膜は２種類
の感光膜厚のものを混合生産する場合、感光溶液は二系
列とし図上部は粘度の低い一般民生用の系列Ａを示し図
下部は粘度の高い中高精細の系列Ｂを示す。When the fluorescent screen photosensitive film of the color picture tube panel is manufactured by mixing two kinds of photosensitive film thickness, the photosensitive solution is made into two lines and the upper part of the figure shows the low-viscosity general-use household A and the lower part of the figure has the high viscosity. Shows medium-high definition series B.
この感光溶液の塗布、回収、供給を行う循環系を低粘
度感光溶液の系列Ａについて説明する。まず、PVAと重
クロム酸アンモニウムを主成分とする感光溶液１の塗布
はガラスパネル２をキャリア（図示しない）に保持して
これを回転させながら、注入用マティアタンク3Aに組込
まれたポンプ４を通して圧送し、これを電磁弁の開閉に
よりノズル５からガラスパネル２内に一定量注入する。
この場合、ガラスパネル２の傾きと回転数とを制御し
て、ガラスパネル２の内面に注入された感光溶液を拡げ
る。The circulation system for applying, collecting, and supplying the photosensitive solution will be described with respect to the low viscosity photosensitive solution series A. First, the photosensitive solution 1 containing PVA and ammonium dichromate as main components is applied through a pump 4 incorporated in a filling tank 3A while holding a glass panel 2 on a carrier (not shown) and rotating the carrier. A fixed amount is injected into the glass panel 2 from the nozzle 5 by opening and closing the electromagnetic valve.
In this case, the photosensitive solution injected into the inner surface of the glass panel 2 is spread by controlling the inclination and the rotation speed of the glass panel 2.
このようにして感光溶液を塗布した後、ガラスパネル
２を高速回転させ過剰の感光溶液１を回収容器６に振り
切って回収し、配管７を通して、再び注入用マティアタ
ンク3Aに戻す。感光溶液１の減少分については補給フィ
ラータンク８から自動的に補給される。過剰の感光溶液
１を振り切ったガラスパネル２は次の乾燥工程、露光工
程へと進み、スクリーン形成面に一定膜厚のフォトレジ
ストドットが形成される。このように感光溶液１の大部
分は注入用マティアタンク3Aから電磁弁５、ガラスパネ
ル２および回収容器６を経て再び注入用マティアタンク
3Aへ戻るという循環を繰り返している。After the application of the photosensitive solution in this way, the glass panel 2 is rotated at a high speed, and the excess photosensitive solution 1 is shaken off and collected in the collecting container 6, and returned to the injection matia tank 3A again through the pipe 7. The reduced amount of the photosensitive solution 1 is automatically replenished from the replenishment filler tank 8. The glass panel 2 from which the excess photosensitive solution 1 has been shaken is advanced to the next drying step and exposure step, and photoresist dots having a constant thickness are formed on the screen forming surface. As described above, most of the photosensitive solution 1 is transferred from the injection matia tank 3A through the solenoid valve 5, the glass panel 2, and the collection container 6 again to the injection matia tank.
The cycle of returning to 3A has been repeated.
高粘度感光溶液系列Ｂにおいても、系列Ａと同じ工程
で感光溶液が塗布されパネルに厚い感光膜を形成する。
系列Ａと同一の符号は同様部分を示す。Also in the high viscosity photosensitive solution series B, the photosensitive solution is applied in the same process as the series A to form a thick photosensitive film on the panel.
The same reference numerals as those in the series A indicate similar parts.
しかしながら、系列Ｂでは、回収された高粘度感光溶
液をマティアタンク3Bに戻さない。すなわち、回収した
過剰分を全て回収タンク10に溜め、貯水タンク11から純
水を添加し、系列Ａの低粘度感光溶液としての粘度が15
CPSに合致するように希釈して泡切りなどして調整後、
ポンプ12を介して系列Ａのマティアタンク3Aに送液し、
再び感光溶液として再使用する。However, in the series B, the collected high-viscosity photosensitive solution is not returned to the matia tank 3B. That is, all of the excess recovered is stored in the recovery tank 10, pure water is added from the water storage tank 11, and the viscosity of the low-viscosity photosensitive solution of series A becomes 15%.
After adjusting by diluting and defoaming to match CPS ,
The liquid is sent to the series A matia tank 3A via the pump 12,
It is reused again as a photosensitive solution.
このように、低粘度感光溶液系列では、自系列の回収
感光溶液を再利用するとともに、高粘度感光溶液系列Ｂ
の回収感光溶液を調整後、使用する。一般民生用のスク
リーンの蛍光体ドットは粗く寸法管理が容易なので、薄
い膜厚の感光膜を形成することができ、低粘度の許容範
囲も15CPS±0.5CPSと大きくとれる。同一塗布ラインに
投入される受像管サイズも例えば18型から21型と幅が広
いが、上述の構成で十分に対応することができる。Thus, in the low-viscosity photosensitive solution series, the recovered photosensitive solution in the own series is reused, and the high-viscosity photosensitive solution series B is used.
After adjusting the recovered photosensitive solution, use it. Since the phosphor dots of general consumer screens are coarse and easy to control in size, a thin photosensitive film can be formed and the allowable range of low viscosity can be as large as 15 CPS ± 0.5 CPS . The size of the picture tube to be put into the same coating line is also wide, for example, from 18 inches to 21 inches, but the above configuration can sufficiently cope with it.
一方、高粘度感光溶液系列Ｂでは、塗布により使用し
減少した分を、常にフィラータンク８から補給するよう
に構成されるので、温度制御を含め、厳密な粘度制御が
でき、パネル面に膜厚が厚く均一な感光膜を形成するこ
とができる。すなわち、感光溶液の塗布時の粘度を21
CPS±0.1CPS内に制御することが容易である。On the other hand, in the high-viscosity photosensitive solution series B, the amount reduced by use by application is configured to be constantly replenished from the filler tank 8, so that strict viscosity control including temperature control can be performed. And a uniform photosensitive film can be formed. That is, the viscosity at the time of application of the photosensitive solution is 21.
It is easy to control within CPS ± 0.1 CPS .
以上、本発明を実施例で述べたが、感光溶液は重クロ
ム酸以外に、例えばPVP系などにも適用できることはい
うまでもなく、また塗布系列も低、中、高粘度用など３
種以上のものにも適用することが可能である。As described above, the present invention has been described in the examples. However, it is needless to say that the photosensitive solution can be applied to not only dichromic acid but also, for example, a PVP type and the like, and the application series is low, medium, and high viscosity.
It is possible to apply to more than species.
［発明の効果］ 本発明によれば、高粘度感光溶液、低粘度感光溶液と
ともに、粘度の許容範囲内で塗布することが容易であ
り、しかも、高粘度感光溶液の過剰回収分が低粘度感光
溶液として再利用でき、感光液の有効利用が可能にな
る。[Effects of the Invention] According to the present invention, it is easy to apply the high-viscosity photosensitive solution and the low-viscosity photosensitive solution together with the viscosity within an allowable range, and the excess recovered amount of the high-viscosity photosensitive solution is reduced by the low-viscosity photosensitive solution. It can be reused as a solution, making effective use of the photosensitive solution possible.
第１図は本発明が実施例を示す工程図である。 １……感光溶液、２……ガラスパネル、 3A、3B……マティアタンク、 ６……回収容器、８……フィラータンク、 10……回収タンク、11……貯水タンク FIG. 1 is a process drawing showing an embodiment of the present invention. 1 ... photosensitive solution, 2 ... glass panel, 3A, 3B ... matia tank, 6 ... collection container, 8 ... filler tank, 10 ... collection tank, 11 ... water storage tank
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭52−35978（ＪＰ，Ａ) 特開 昭61−121235（ＪＰ，Ａ) 特開 昭60−30033（ＪＰ，Ａ) 特開 昭55−27060（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01J 9/22 G03C 1/74,1/66 G03F 7/16 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-35978 (JP, A) JP-A-61-121235 (JP, A) JP-A-60-30033 (JP, A) JP-A 55-359 27060 (JP, A) (58) Field surveyed (Int. Cl. 6 , DB name) H01J 9/22 G03C 1 / 74,1 / 66 G03F 7/16
Claims (1)
ラー受像管パネルの蛍光スクリーン感光膜の塗布に際
し、 前記感光膜厚に対応して低粘度に調整した低粘度感光溶
液を第１のフィラータンクに収容し、第１のフィラータ
ンクからの低粘度感光溶液を第１のマティアタンクで調
整し、第１のマティアタンクからの感光溶液をノズルに
より第１のパネル面に供給し、塗布後の過剰感光溶液を
回収して、再塗布のために前記第１のマティアタンクに
戻し、 前記感光膜厚に対応した高低粘度に調整した高低粘度感
光溶液を第２のフィラータンクに収容し、第２のフィラ
ータンクからの高低粘度感光溶液を第２のマティアタン
クで調整し、第２のマティアタンクからの感光溶液をノ
ズルにより感光膜厚を異にする第２のパネル面に供給
し、塗布後の過剰感光溶液を回収する感光溶液の回収方
法において、 前記高粘度感光溶液を塗布する前記第２のパネルから回
収する過剰感光溶液を回収後、溶媒で希しゃくして低粘
度感光溶液の前記第１のマティアタンクに供給するこよ
うにしたことを特徴とする感光溶液の回収方法When coating a fluorescent screen photosensitive film of at least two types of color picture tube panels having different photosensitive film thicknesses, a low-viscosity photosensitive solution adjusted to a low viscosity corresponding to the photosensitive film thickness is used as a first solution. It is stored in a filler tank, the low-viscosity photosensitive solution from the first filler tank is adjusted by the first Matia tank, and the photosensitive solution from the first Matia tank is supplied to the first panel surface by the nozzle, and after the coating, The excess photosensitive solution is recovered and returned to the first Matia tank for re-application, and the high-low viscosity photosensitive solution adjusted to high-low viscosity corresponding to the photosensitive film thickness is stored in the second filler tank, The high and low viscosity photosensitive solution from the second filler tank is adjusted in the second matia tank, and the photosensitive solution from the second matia tank is supplied to the second panel surface having a different photosensitive film thickness by a nozzle, and coated. Recovering the excess photosensitive solution, recovering the excess photosensitive solution from the second panel to which the high-viscosity photosensitive solution is applied, and then diluting with a solvent to remove the low-viscosity photosensitive solution. 1. A method for collecting a photosensitive solution, wherein the method comprises supplying the photosensitive solution to a matia tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23211089A JP2909103B2 (en) | 1989-09-07 | 1989-09-07 | Photosensitive solution recovery method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23211089A JP2909103B2 (en) | 1989-09-07 | 1989-09-07 | Photosensitive solution recovery method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0395830A JPH0395830A (en) | 1991-04-22 |
| JP2909103B2 true JP2909103B2 (en) | 1999-06-23 |
Family
ID=16934163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23211089A Expired - Fee Related JP2909103B2 (en) | 1989-09-07 | 1989-09-07 | Photosensitive solution recovery method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2909103B2 (en) |
-
1989
- 1989-09-07 JP JP23211089A patent/JP2909103B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0395830A (en) | 1991-04-22 |
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| LAPS | Cancellation because of no payment of annual fees |