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1. 发明专利

JPH07262917A MANUFACTURE OF METAL MESH 失效
公开(公告)号：JPH07262917A
公开(公告)日：1995-10-13
申请号：JP4762694
申请日：1994-03-18
申请人： TOSHIBA CORP
发明人： SAKATA FUSAO , AOYAMA SHOZO
IPC分类号： H01J9/14
摘要： PURPOSE:To stably manufacture a high-dignity metal mesh by fabricating the metal mesh by means of an electrotyping method after an electrotyping liquid is treated in advance at least for 8 hours at a cathode voltage of 0.5 to 1.0V. CONSTITUTION:Aqueous solution containing sulfate Ni of 400g/l, sulfate Co of 5g/l, boric acid 40g/l, and brightener of 2ml/l is used as an electrotyping liquid. An anode side electrode 10 composed of a pure Ni plate with its surface cleaned and a cathode side electrode 11 composed of a Fe plate are oppositely arranged, the electrotyping liquid is put into an dielectric vessel 14 provided with a heater 12, an agitator 13, etc., heated up to 50 deg.C, the cathode voltage is set to 0.5 to 1.0V, and dielectric treatment is performed for at least 8 hours while making soft agitation. The electrotyping liquid is transferred to the electrotyping vessel, an SKNi plate is allocated as an anode side electrode, a master mesh cleaned opposite to that electrode is allocated as a cathode side electrode, Ni is deposited on the mesh pattern by means of electrotyping, and a flat Ni mesh is formed and stripped. Hot working is performed by means of a die and a punch, and a dome-shaped Ni mesh is formed.

2. 发明专利

JPH04121930A FLUORESCENT SCREEN FORMING METHOD FOR COLOR CATHODE-RAY TUBE 失效
公开(公告)号：JPH04121930A
公开(公告)日：1992-04-22
申请号：JP24226790
申请日：1990-09-12
申请人： TOSHIBA CORP
发明人： SAKATA FUSAO
IPC分类号： H01J9/227
摘要： PURPOSE:To prevent the damage of a light absorbing layer when removing a phosphor layer except the light absorbing layer by processing the light absorbing layer formed on the inner face of a panel with an aqueous solution mixed with ZnO fine grains and SiO2 fine grains at a specific ratio. CONSTITUTION:A photosensitive film 12 is formed on the inner face of a panel 1. Resists 13 with a pattern corresponding to through holes of a shadow mask are formed. A light absorbing paint film 14 is formed on the inner face of the panel 1 formed with the resists 13. The light absorbing paint coated on it is peeled together with the resists 13 to form a light absorbing layer 9a or 9b. The inner face of the panel 1 is processed with an aqueous solution mixed with ZnO fine grains 0.1-0.5wt.% and SiO2 fine grains 0.2-1.0wt.%, and an aqueous solution of PVA 0.2 wt.% is coated and dried to form a film 20 of ZnO/SiO2 and PVA. Three-color phosphor layers 10B, 10G, 10R are formed at the formation positions of phosphor layers of the layer 9a or 9b. The damage of the layer 9a or 9b can be prevented when the layers 10B, 10G, 10R are removed except the layer 9a or 9b.

3. 发明专利

JPH04274133A PHOSPHOR SCREEN FORMING METHOD FOR COLOR IMAGE RECEIVING TUBE 失效
公开(公告)号：JPH04274133A
公开(公告)日：1992-09-30
申请号：JP5819591
申请日：1991-02-28
申请人： TOSHIBA CORP
发明人： SAKATA FUSAO
IPC分类号： H01J9/24 , H01J9/227
摘要： PURPOSE:To sufficiently disperse a phosphor and stably hold the dispersed phosphor so as to obtain a phosphor screen of a high quality by adding PVA having a high polymerization degree and high viscosity after the addition of PVA having a low polymerization degree and low viscosity. CONSTITUTION:PVA having an average polymerization degree of 800-1000, a saponification degree of 85-89mol% and viscosity of 4wt.% water solution of 3.0-5.8cPs at 20 deg.C is added into a liquid of a water dispersing phosphor, whereby the phosphor is uniformly dispersed. A PVA solution having an average polymerization degree of 3000-3500, a saponification degree of 85-89mol% and viscosity of 4wt.% water solution of 100-150cPs at 20 deg.C is added into the phosphor, thereby improving uniformity of the phosphor. Phosphor slurry having a solid component ratio 2:8 of both PVA is prepared so that a phosphor screen of a high quality can be obtained.

4. 发明专利

JPS58214252A Production method of shadow mask 失效
标题翻译：阴影面膜的生产方法
公开(公告)号：JPS58214252A
公开(公告)日：1983-12-13
申请号：JP9488982
申请日：1982-06-04
申请人： Toshiba Corp
发明人： HARIKAE MAKOTO , SAKATA FUSAO
IPC分类号： H01J9/14
CPC分类号： H01J9/142
摘要： PURPOSE:To form a thin photosensitive film uniform in thickness and with no coating unevenness by adding 0.001%-3% of a boundary surface active agent to a photosensitive liquid in a shadow mask used for a color CRT with high resolution. CONSTITUTION:A long belt-like pure ion soft steel plate prepared as a raw material for a shadow mask is cleaned then continuously coated with a photosensitive liquid composed of 1kg of refined casein, 10gr of ammonium dichromate, a boundary surface active agent, e.g., 2cc of ''Disform CD-432'' and 0.8 (1) of water at a coating speed of 3.0m/min. As to the added quantity of the boundary surface active agent, an excellent result is obtained at 0.001%-3.0%, but the wet characteristic of the photosensitive liquid is not improved and a photosensitive film with no coating unevenness can not be obtained at 0.001% or less, and the photosensitive film is destroyed during the etching process performed for 5min as an after-process at 3% or more.
摘要翻译：目的：通过在用于高分辨率的彩色CRT的荫罩中的光敏液体中加入0.001％-3％的界面活性剂，形成厚度均匀且无涂层不均匀性的薄感光膜。构成：将作为荫罩原料制作的长带状纯离子软质钢板进行清洗，然后用感光性液体连续涂布1kg精制酪蛋白，10g重铬酸铵，边界表面活性剂， 2cm的“Disform CD-432”和0.8（1）的水，涂布速度为3.0m / min。关于边界表面活性剂的添加量，在0.001％-3.0％时获得了优异的结果，但是感光性液体的湿特性没有改善，并且在0.001％时不能获得没有涂布不均匀的感光膜，以下，在作为后处理3％以上进行5分钟的蚀刻工序中，感光性膜被破坏。

5. 发明专利

JPS63207030A FORMATION OF COLOR PICTURE TUBE FLUORESCENT SCREEN 失效
公开(公告)号：JPS63207030A
公开(公告)日：1988-08-26
申请号：JP3805687
申请日：1987-02-23
申请人： TOSHIBA CORP
发明人： SAKATA FUSAO
IPC分类号： H01J9/227
摘要： PURPOSE:To obtain a good quality of fluorescent screen, and moreover, to improve the luminous brightness, by precoating the inner surface of a face plate with a specific precoating solution prior to forming a phosphor layer. CONSTITUTION:The precoating solution is composed mainly of polyvinylalcohol, whose saponification value is 85.0 to 98.0 mol %, and the viscosity of its 4 % water solution is 45 to 70 cps. Such a precoating solution is spread on the inner surface of a face plate, and then it is dried to form a precoating membrane. The adhesion between the phosphor layer and the inner surface of the face plate is therefore improved, a removal of the phosphor layer is prevented, and moreover, a high quality color picture tube whose luminous brightness is improved can be obtained.

6. 发明专利

JPS6132328A Formation of fluorescent screen for color picture tube 失效
标题翻译：形成用于彩色图像管的荧光屏
公开(公告)号：JPS6132328A
公开(公告)日：1986-02-15
申请号：JP15204984
申请日：1984-07-24
申请人： Toshiba Corp
发明人： SAKATA FUSAO
IPC分类号： H01J9/227
CPC分类号： H01J9/2271
摘要： PURPOSE:To minimize occurrence of color mixture as well as to remove only a phosphor layer by applying and drying a precoat liquid for inactivating an exposed port of the inside surface of a panel, to said inside surface, after forming a light-absorbing layer on said inside surface of the panel, then forming a phosphor layer. CONSTITUTION:Firstly, a light-absorbing layer 2a is formed on the inside surface of a panel 1, and then, this light-absorbing layer 2a and an exposed panel-inside surface 1b (called ''substrate'' in general) are wipingly coated with a precoating liquid prepared by dissolving a frit glass 4kg in 4wt% nitric acid 80l, followed by drying it. Next, phosphor slurry coloring in blue, for example, being added with a photosensitive binder as a first color is spread thereon and it is dried and exposed to light, followed by development and drying, thus forming a blue-coloring tape-like phosphor layer 6B. In this case since the treatment with precoating liquid inactivates the substrate chemically, there will be no phenomenon of any remaining phosphor constituting the said phosphor layer 6B as residue at the position where originarily, a coloring phosphor layer 6R in red as a third color or a coloring phosphor layer 6G in green as a second color is to be formed.
摘要翻译：目的：为了最小化颜色混合物的发生，并且仅通过施加和干燥用于灭活面板内表面的暴露端口的预涂液体到所述内表面，在形成光吸收层之后，仅去除荧光体层所述面板的所述内表面，然后形成荧光体层。构成：首先，在面板1的内表面上形成有光吸收层2a，然后将该光吸收层2a和露出的面板内表面1b（通常称为“基板”）均匀地涂覆有通过将玻璃料玻璃4kg溶解在4重量％硝酸80l中而制备的预涂液体，随后将其干燥。接着，将蓝色的荧光体浆料着色，例如添加有感光性粘合剂作为第一种颜色，将其干燥并曝光，然后显影和干燥，从而形成蓝色带状荧光体层 6B。在这种情况下，由于用预涂层液体处理使化学反应使基板失活，所以构成荧光体层6B的任何剩余的荧光体不会存在于作为第三颜色的红色着色荧光体层6R或要形成绿色的着色磷光体层6G作为第二种颜色。

7. 发明专利

JPS63112442A PANEL CLEANING METHOD FOR COLOR PICTURE TUBE 失效
公开(公告)号：JPS63112442A
公开(公告)日：1988-05-17
申请号：JP25916586
申请日：1986-10-30
申请人： TOSHIBA CORP
发明人： TANAKA YUTAKA , SAKATA FUSAO
IPC分类号： C03C23/00 , H01J9/38
摘要： PURPOSE:To completely remove sticking dust on the inner surface of a panel and efficiently obtain the titled smooth panel without correction, by cleaning the inner surface of the titled heat-treated panel with a brush using a cleaning solution, primarily washing the inner surface with water, subjecting the inner surface to acid cleaning treatment and carrying out the secondary washing with water. CONSTITUTION:The inner surface of the titled panel prepared by combining a panel without forming a fluorescent surface with a shadow mask and heat- treating the combined panel in a high temperature environment is physically brushed with a soft material, e.g. nylon brush, gauze, etc., for 10-15sec while supplying a cleaning solution to clean and remove sticking materials firmly sticking to the inner surface of the panel without damaging the panel. The inner surface thereof is primarily washed with water. The panel washed with water is then sprayed with a 10-18% hydrofluoric acid solution e.g. under 1-1.5kg/cm pressure for about 15-30sec, to carry out acid cleaning treatment. The panel is secondarily washed with high-pressure pure water under, e.g. about 5kg/cm pressure, coated with a resist, dried and sent to an exposing and printing process.

8. 发明专利

JPS622427A FORMATION OF FLUORESCENT SCREEN FOR COLOR CATHODE-RAY TUBE 失效
公开(公告)号：JPS622427A
公开(公告)日：1987-01-08
申请号：JP14117085
申请日：1985-06-27
申请人： TOSHIBA CORP
发明人： SAKATA FUSAO
IPC分类号： C09K11/02 , H01J9/227
摘要： PURPOSE:To prevent any separation of phosphor dots and the remaining of phosphor residue by applying a phosphor slurry after a solution prepared by adding SiO2 to an aqueous solution principally composed of polyvinyl pyrrolidone, an azido compound and a silane compound is applied and dried. CONSTITUTION:After the inner surface of a panel 5 is coated with a thin precoat film 6 formed by applying an aqueous solution principally composed of polyvinyl pyrrolidone (PVP), an azido compound, a silane compound and SiO2 before drying, a phosphor slurry is applied to the thin film and then the applied slurry is dried to form a phosphor layer which is then exposed to light. Light transmitted by the phosphor layer during the above exposure as well as the cross-linkage between PVP and the azido component accelerate the adhesion between the inner surface of the panel 5 and the precoat film 6 and that between the precoat film 6 and the phosphor layer. The concentration of SiO2 in the aqueous solution is 0.2-5wt%. By the means mentioned above. It is possible to prevent any separation of phosphor dots or the remaining of phosphor residue.

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