JPS6235432A - Method for forming light-absorbing film of color picture tube - Google Patents
Method for forming light-absorbing film of color picture tubeInfo
- Publication number
- JPS6235432A JPS6235432A JP17341185A JP17341185A JPS6235432A JP S6235432 A JPS6235432 A JP S6235432A JP 17341185 A JP17341185 A JP 17341185A JP 17341185 A JP17341185 A JP 17341185A JP S6235432 A JPS6235432 A JP S6235432A
- Authority
- JP
- Japan
- Prior art keywords
- light
- photosensitive film
- film
- absorbing
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 16
- 239000011521 glass Substances 0.000 claims abstract description 14
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229960001922 sodium perborate Drugs 0.000 claims abstract description 5
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims abstract description 5
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 4
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims abstract description 3
- 230000031700 light absorption Effects 0.000 claims description 8
- 229920002120 photoresistant polymer Polymers 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims 2
- 239000004202 carbamide Substances 0.000 claims 1
- 235000013877 carbamide Nutrition 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 239000011159 matrix material Substances 0.000 abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910002804 graphite Inorganic materials 0.000 abstract description 5
- 239000010439 graphite Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 229910052708 sodium Inorganic materials 0.000 abstract description 2
- 239000011734 sodium Substances 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract description 2
- AQLJVWUFPCUVLO-UHFFFAOYSA-N urea hydrogen peroxide Chemical compound OO.NC(N)=O AQLJVWUFPCUVLO-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、カラー受像管の製造方法に係り、特にカラー
受像管のガラスパネル内面に形成される光吸収膜の形成
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a color picture tube, and more particularly to a method of forming a light absorption film formed on the inner surface of a glass panel of a color picture tube.
従来、カラー受像管の光吸収膜の形成方法については、
米国特許第３５５８３１０号明細書に転写法として提案
されている。この方法では、カラー受像管のガラスパネ
ル内面に重クロム酸塩−ポリビニルアルコール等の水性
感光剤で感光膜を形成し、多数の開孔を有するシャドウ
マスクを介して紫外線照射を行ない露光する。次に未露
光部を水洗除去して不溶部分を残し、形成された感光膜
、すなわちステンシル並びにガラスパネル生地を黒鉛な
どの光吸収物質で覆い、光吸収膜を形成する。次に、剥
離剤、たとえば過酸化水素水を光吸収膜に接触させ、ス
テンシルと共に光吸収膜を分解・除去し、ステンシルで
覆われなかった部分に光吸収膜を残し、吸光マトリクス
を得ている。Conventionally, the method for forming the light absorption film of color picture tubes was as follows:
A transfer method is proposed in US Pat. No. 3,558,310. In this method, a photosensitive film is formed on the inner surface of a glass panel of a color picture tube using an aqueous photosensitive agent such as dichromate-polyvinyl alcohol, and exposed to ultraviolet rays through a shadow mask having a large number of holes. Next, the unexposed areas are washed away with water, leaving insoluble areas, and the formed photosensitive film, ie, the stencil and the glass panel fabric, are covered with a light-absorbing substance such as graphite to form a light-absorbing film. Next, a stripping agent, such as hydrogen peroxide, is brought into contact with the light-absorbing film, and the light-absorbing film is decomposed and removed together with the stencil, leaving the light-absorbing film in the areas not covered by the stencil, resulting in a light-absorbing matrix. .
上述した従来の方法において、剥離剤として用いられる
過酸化水素水は、反応を促進するために約６０℃に加熱
された数チの濃度のものであるが、作業上安全であると
いい難く、また過酸化水素自体の分解が貯蔵中にも急激
に促進されるために、その温度コントロールが容易でな
かった。さらには高温のために、硬化部を剥離した後に
形成される吸光マ） ＩＪガラス形状が悪くなり易く、
画像にムラを生じるという欠点があった。In the conventional method described above, the hydrogen peroxide solution used as a stripping agent is heated to about 60°C and has a concentration of several centimeters to promote the reaction, but it is difficult to say that it is safe for work. Furthermore, since the decomposition of hydrogen peroxide itself is rapidly accelerated during storage, it is difficult to control the temperature. Furthermore, due to the high temperature, the shape of the IJ glass (IJ glass) tends to deteriorate due to the light-absorbing material that is formed after the hardened part is peeled off.
This had the disadvantage of causing unevenness in the image.
本発明による方法は、ガラスパネル内面に、感光膜を形
成する工程と、シャドウマスクを介して露光する工程と
、現像して残存した感光膜、すなわちステンシルが形成
されたパネル内面に光吸収膜を形成する工程と、過酸化
水素水に過ホウ酸ナトリウム過硫酸カリウム、過硫酸ナ
トリウム、バーカバミドのいずれかを添加して成る液を
用い〔実施例〕
次に本発明によるカラー受像管の光吸収膜形成方法につ
いて述べる。The method according to the present invention includes a step of forming a photoresist film on the inner surface of a glass panel, a step of exposing it to light through a shadow mask, and a step of forming a light-absorbing film on the inner surface of the panel on which the photoresist film remaining after development, that is, a stencil has been formed. [Example] Next, a light-absorbing film of a color picture tube according to the present invention was prepared using a solution prepared by adding sodium perborate, potassium persulfate, sodium persulfate, or burkabamide to a hydrogen peroxide solution. The formation method will be described.
まず、ガラスパネル内面に、重クロム酸塩によって感光
性を与えたポリビニルアルコール溶液を塗布し、その表
面が均一になるように乾燥し、感光膜を形成する。First, a polyvinyl alcohol solution made photosensitized by dichromate is applied to the inner surface of the glass panel, and the solution is dried so that the surface is uniform to form a photoresist film.
次にシャドウマスクをガラスパネルに装着し露光する。Next, a shadow mask is attached to the glass panel and exposed.
次にシャドウマスクを取り外し、ガラスパネルを回転さ
せながら４５〜５０℃の温水で洗浄し、硬化感光膜を得
る。次にこの上からグラファイト懸濁液を塗布し、光吸
収膜を形成する。次に剥離剤として、表１の組成から成
る常温の剥離剤をガラスパネル内面に塗布し、数分間放
置する。Next, the shadow mask is removed, and the glass panel is washed with warm water at 45 to 50° C. while rotating to obtain a cured photosensitive film. Next, a graphite suspension is applied over this to form a light absorption film. Next, as a release agent, a release agent at room temperature having the composition shown in Table 1 is applied to the inner surface of the glass panel and left for several minutes.
数分後光吸収膜の下の硬化感光膜の膨潤部分に高圧の水
噴射を行ない、硬化感光膜とその上に塗られたグラファ
イトを流し去ると、容易に形状の良好な吸光マトリクス
を得ることができる。After a few minutes, a high-pressure water jet is applied to the swollen part of the cured photosensitive film under the light-absorbing film to wash away the cured photosensitive film and the graphite coated on it, making it easy to obtain a well-shaped light-absorbing matrix. Can be done.
表−１に本発明の剥離剤の組成例と検討結果をまとめで
ある。また比較のために従来の過酸化水素水の例も示し
である。○の判定は硬化感光膜が容易に剥離された場合
あるいは、吸光マトリクスの形状が良好な場合で、Ｘの
判定は硬化感光膜が剥離されなかった場合、あるいは吸
光マトリクスの形状が劣化した場合である。Table 1 summarizes composition examples and study results of the stripping agent of the present invention. For comparison, an example of a conventional hydrogen peroxide solution is also shown. A judgment of ○ is when the cured photosensitive film is easily peeled off or the shape of the light absorption matrix is good, and a judgment of X is when the cured photosensitive film is not peeled off or the shape of the light absorption matrix has deteriorated. be.
このように剥離剤として、表−１の組成より成る液を用
いることにより、常温で安全にしかも、ドツト形状の良
好な吸光マトリクスを得ることができた。As described above, by using the liquid having the composition shown in Table 1 as a stripping agent, it was possible to safely obtain a light absorption matrix having a good dot shape at room temperature.
本発明の方法によるカラー受像管の光吸収膜形成方法は
、光吸収膜から仮ドツトの感光膜を除くために、過酸化
水素水に過ホウ酸ナトリウム、過硫酸ナトリウム、過リ
ン酸ナトリウムまたはバーカバミドを用いることにより
、加熱することなく安全であると同時に、吸光マトリク
スの形状を改善する上で極めて有用である。The method of forming a light-absorbing film for a color picture tube according to the method of the present invention includes adding sodium perborate, sodium persulfate, sodium perphosphate, or burkabamide to a hydrogen peroxide solution in order to remove the temporary dot photosensitive film from the light-absorbing film. By using this method, it is safe without heating, and at the same time, it is extremely useful for improving the shape of the light absorption matrix.
Claims (1)
成する工程と、前記感光膜をシャドウマスクを介して露
光する工程と、現像により感光膜の未露光部分を除去す
る工程と、残存した感光膜、すなわちステンシルが形成
されたパネル内面に光吸収物質物を塗布する工程と、過
酸化水素に過ホウ酸ナトリウム、過硫酸カリウム、過硫
酸ナトリウム、バー・カーバミドのいずれかを添加した
剥離剤を用いて、前記ステンシルの形成された感光膜を
除去する工程とを含むカラー受像管の光吸収膜形成方法
。A process of coating and drying a photosensitive liquid on the inner surface of the glass panel to form a photosensitive film, a process of exposing the photosensitive film to light through a shadow mask, a process of removing unexposed parts of the photosensitive film by development, and a process of removing the remaining unexposed parts of the photosensitive film. A process of applying a light-absorbing substance to the inner surface of the panel on which a photosensitive film, that is, a stencil, is formed, and a stripping agent consisting of hydrogen peroxide and one of sodium perborate, potassium persulfate, sodium persulfate, and bar carbamide. and removing the photoresist film on which the stencil is formed using a method of forming a light absorption film for a color picture tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17341185A JPS6235432A (en) | 1985-08-06 | 1985-08-06 | Method for forming light-absorbing film of color picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17341185A JPS6235432A (en) | 1985-08-06 | 1985-08-06 | Method for forming light-absorbing film of color picture tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6235432A true JPS6235432A (en) | 1987-02-16 |
Family
ID=15959933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17341185A Pending JPS6235432A (en) | 1985-08-06 | 1985-08-06 | Method for forming light-absorbing film of color picture tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6235432A (en) |
-
1985
- 1985-08-06 JP JP17341185A patent/JPS6235432A/en active Pending
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