45750 〇 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（I ) [發明背景-] 本發明係關於一種於電視顯像器、電腦顯示器等所使 用之陰極射線管之製造方法。 於一般之陰極射線管之製造方法之螢幕膜形成步驟， 係具備：於形成有碑膜之面板內面形成螢光體膜之階段； 於該螢光體膜上塗佈成膜液(filming liquid)，然後將該塗佈 之成膜液以加熱器、空氣等乾燥以形成一被膜之階段；於 該被膜上以真空蒸鍍的方式形成金屬膜之階段；於形成金 屬膜後，進行加熱直到有機質分解的溫度以去除被膜的階 段。 再者，爲提昇螢光體膜對於面板內面的接著性，乃於 面板內面形成螢光體膜之前，先在形成於面板內面的碳膜 上預塗(作爲保護膜被覆）聚乙烯醇(以下稱爲「PVA」）。例 如，於面板內面形成螢光體膜之階段中，於形成有碳膜之 面板內面預塗PVA，接著塗佈螢光體膜形成用之塗液，於 乾燥之後，以曝光法透過蔭罩於此螢光體膜上進行圖案狀 的曝光，來製作曝光部分與未曝光部分，然後以使用純水 的顯像法將未曝光部分之螢光體膜去除，以於既定部位形 成紅•藍•綠之三色的螢光體膜。 近年來，伴隨陰極射線管的高精細化，色純度的降低 就變得相當明顯。就上述之陰極射線管之製造方法而言， 由於在面板內面形成螢光體膜之階段中，在面板內面預塗 有PVA，乃可對於面板內面之螢光體膜的接著性加以改善 。惟，使用純水等進行顯像後，於未曝光部分會殘存有一 3 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱3 I---------)裝-------訂-!------線·^ (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產总員工消費合作社印製 A7 ___B7__ 五、發明說明（V ) 部分的螢光體膜，在下一步驟時該螢光體膜與其他顏色的 螢光體膜會發生所請混色的「色霧」，而會發生陰極射線 管之色純度的降低之問題。 又，由於PVA爲高分子樹脂，於面板內面全面上將其 作爲螢光體膜甩之塗液來塗佈時之擴展性(以下稱爲「潤濕 性」）差。是以，於螢光體膜表面會發生能以肉眼確認出放 射狀紋路的紋斑、於螢光體膜中能以肉眼確認出氣泡的起 泡斑 '以及PVA之預塗時於該塗佈裝置的周邊發生之如蜘 蛛巢般的線狀纖維。此纖維會附著於面板內面，於是發生 跑出螢光體膜表面的纖維斑等之塗佈斑’亦造成陰極射線 管之亮度降低的問題。 [發明之簡單說明] 本發明係用以解決上述問題所得之物，所提供之陰極 射線管之製造方法，可形成色霧與塗佈斑少的螢幕膜，並 可提升色純度與亮度。 本發明之陰極射線管之製造方法，其特徵在於，係在 彤成於面板內面的碳膜上塗佈（預塗）含有非離子界面活性 劑之溶液，之後於前述面板內面形成螢光體膜。 依據本發明之製造方法，可於面板內面之全面上形成 一螢幕膜，其螢光體膜之潤濕性獲得改善、且少有色霧或 塗佈斑的發生。 [圖式之簡單說明] 圖1所示係本發明之陰極射線管之製造方法之陰極射 線管之玻璃面板的一形態之要部截面圖。 4 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ---— in--- -- j 裝--------訂-----I I-- (請先閱讀背面之注意事項再填窝本頁) 經濟部智慧財產局員工消費合作社印製 45750 ^ A7 ___ B7 五、發明說明（、） 圖2所示係本發明之製造方法之一例的方塊圖。 [發明之實施形態] 以下，針對本發明之製造方法之較佳實施形態說明。 非界面活性劑之HLB(親水親油平衡値：hydrophUe-lip.ophiU balance)以10〜18爲宜。若HLB過低於塗佈時有 時會發生稱爲「縮孔（cissing)」的塗佈斑的情形，相反地 若HLB過高有時會有起泡時之消泡性變差的情形。 非離子界面活性劑，具體上以含有山梨糖醇酐之酯類 爲佳，更具體的說，以含有聚環氧乙烷山梨糖醇酐脂肪酸 酯(polyoxyethylene sorbitan fatty acid ester)爲佳。含有聚 環氧乙烷山梨糖醇酐脂肪酸酯的溶液，以含有聚環氧乙烷 山梨糖醇酐脂肪酸酯的水溶液爲佳。又，於此溶液中聚環 氧乙烷山梨糖醇酐脂肪酸酯的濃度以0.1〜1.0重量％爲佳。 以下，參照圖式就本發明之實施形態加以說明。 圖1所示係依據本發明之第1實施形態之陰極射線管 之製造方法所製作的陰極射線管之玻璃面板的要部截面圖 〇 玻璃面板1，其內面(面板內面)2上係依序形成有：碳 膜6、螢光體膜3a,3b，3c(分別對應於綠Green，藍Blue,紅 Red)、漆(lacquer)膜4、以及銘膜5等。 圖2所示係本發明之陰極射線管之製造方法之一彤態 的方塊圖。 首先，以面板洗淨步驟7洗淨玻璃面板1之後’以感 光液塗佈步驟8於面板內面2塗佈例如聚乙烯基吡略院酮 5 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐) ------------..)裝·--I ---I訂_---I ----線丨d (請先閲讀背面之沒意事項再填寫本頁) 1:^457 6 u A7 _ B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（if) 一雙疊氮基系感光液(PVP系感光液），然後以乾燥步驟9 進行乾燥。其次以保留應分別形成綠、藍、紅之各色螢光 體膜3a、3b、3c的部分的方式，透過具有點狀之複數孔的 蔭罩以曝光步驟10進行曝光，同時以顯像步驟11進行顯 像，使得僅有應形成綠、藍、紅之各色螢光體膜3a、3b、 3c的部分殘留感光膜。 其次，藉由碳塗佈步驟12，於面板內面2塗佈例如含 碳粒子之塗佈液，接著以乾燥步驟13乾燥之後，再以顯像 步驟Η選擇性去除僅於面板內面2所事先形成之感光膜。 藉此，在形成綠、藍、紅之各色螢光體膜3a、3b、3c之部 分以外的區域形成碳膜6。 其次，藉噴霧步驟15，在形成有碳膜6的面板內面2 處，將以純水稀釋調整過之濃度爲0.1〜1.0重量％之非離子 界面活性劑（較佳爲聚環氧乙烷山梨糖醇酐脂肪酸酯）之水 溶液噴霧、乾燥之。 其次，藉由螢光體塗佈步驟16，在形成有碳膜6的面 板內面2上塗佈第1種顏色之綠色之螢光體粒子與PVA與 重鉻酸銨所得之混合液(塗液），以乾燥步驟17進行乾燥。 接著，藉由曝光步驟18透過蔭罩進行曝光，再藉由顯像步 驟19將高壓之溫純水灑至面板內面2以將未曝光部分之第 1種顏色之綠色之螢光體膜剝離去除，從而於既定部位形 成第1種顏色之綠色的螢光體膜3a。 其次，同樣地重複塗佈步驟16、乾燥步驟17、曝光 步驟18 '以及顯像步驟19，於既定部位形成第2種顏色之 6 (請先閱讀背面之沒意事項再填寫本頁) ί 言 Γ ί 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作社印製 丨4575η 3 Α7 Β7 五、發明說明（< ) 藍色之螢光體膜3b，接著以同樣的步驟、也就是重複塗佈 步驟16、乾燥步驟I7、曝光步驟18、以及顯像步驟19， 於既定部位形成第3種顏色之紅色之螢光體膜3c。 其次，藉由塗佈步驟20在形成綠，藍，紅之各色螢光體 膜3a、3b、3c的面板內面2塗佈漆的塗液，再以乾燥步驟 21乾燥。接著，藉由蒸鍍步驟22在形成有漆膜4的面板 內面2上蒸鍍鋁以形成鋁膜5。 其次，藉由烘烤步驟23，將形成鋁膜5後之玻璃面板 1放入溫度4〇〇〜450°C的加熱爐內加熱，以分解、去除有機 質的漆膜4。亦即，所製造之螢幕膜係於面板內面2上依 序形成碳膜6、螢光體膜3、以及鋁膜5。 本發明之陰極射線管之製造方法，由於在面板內面2 之形成的碳膜6上預塗有聚環氧乙烷山梨糖醇酐脂肪酸酯 的稀釋水溶液，乃可於面板內面2的全面上形成一螢幕膜 ，其中該螢幕膜之螢光體膜3a、3b、3c之潤濕性獲得改善 ，又少有色霧、紋斑、起泡斑、以及纖維斑等之塗佈斑的 發生。於是，可提升陰極射線管的色純度與亮度。 又，藉由將聚環氧乙烷山梨糖醇酐脂肪酸酯的水溶液 的濃度設定爲0.1〜1.0重量％，可進一步形成少有起泡斑與 纖維斑的塗佈斑發生的螢幕膜。 惟，只要可獲得上述效果，所使用之非離子活性界面 劑並不倜限於聚環氧乙烷山梨糖醇酐脂肪酸酯。又，亦可 使用含有複數種類之界面活性劑的溶液。就可倂用之活性 界面劑而言，可舉出例如於丙二醇上附加環氧乙烷之非離 7 --I---I I I I f I 7, in —--1訂.---11 (請先閲讀背面之注意事項再填寫本頁} 線 本紙張尺度適用中國國家標準（CNS>A4規格<210 X 297公釐） ^457508 、 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（t ) 子界面活性劑（例如旭電化公司製造之浦路羅尼克）。又， 於溶液中亦可混入非離子界面活性劑以外的成分。其中， 溶質的主成分（佔50%以上的成分）以非離子界面活性劑、 尤其是以聚環氧乙烷山梨糖醇酐脂肪酸酯爲佳。 如以上的說明，非離子界面活性劑的溶液以噴霧至面 板內面爲佳。此乃由於相較於印刷、塗佈含有界面活性劑 之糊劑，可減少起泡之故。又，藉由噴霧的方式，可不需 調和糊劑的步驟，故在量產性上亦可提昇。 實施例 以下，基於實施例詳細地說明本發明，惟本發明並不 受限於以下的實施例。 於圖2所示之本發明之陰極射線管之製造方法中，面 板是採用51cm(21英吋)顯示監視管，作爲噴霧步驟15之 水溶液係使用聚環氧乙烷山梨糖醇酐脂肪酸酯(例如第一工 業製藥製造蘇魯根TW - 20 ; HLB=16.7)的水溶液。接著 ，使其濃度變化爲0.03、0.1、0·2、0.5、1.0以及3.0重量 %，於面板內面製造螢幕膜(此面板以下稱爲「本發明品」） 〇 爲與其進行比較，將噴霧步驟15之水溶液由聚環氧乙 烷山梨糖醇酐脂肪酸酯之水溶液改爲PVA之水溶液，除了 此點其餘係使用與上述同樣的製造方法。接著，使該PVA( 例如，日，本合成製造EG—40)之水溶液之濃度變化爲0.03 、0.1、0.2、0.5、1.0、以及3.0重量％，於面板內面製造 螢幕膜(此面板以下稱爲「比較品J )。 8 (請先閱讀背面之注意事項再填寫本頁) '，裝 訂·· ;線. 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 5 7 5 0 8 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（q ) 接著j分別就上述之物調查其色霧'掉點、塗佈斑以 及亮度。其結果示於表1與表2 °表1爲本發明品’表2 爲比較品。 又，關於色霧，係於面板內面形成第1種顏色之綠色 之螢光體膜的階段中’測定於未曝光部分之第2種顏色之 藍色之螢光體膜與第3種顏色之紅色之螢光體膜的位置上 第1種顏色之綠色之螢光體個數’作爲判斷的基準°詳細 地說，當於既定色之螢光體膜之1點（dot)內之其他(綠色) 之螢光體殘渣個數(以下稱爲「其他螢光體殘渣個數」）達8 個以上即會成爲亮度與色純度的品質問題，是以於1片面 板中1點內之其他螢光體殘渣個數的合計爲6個或6個以 下之物記爲「〇」，7個或7個以上之物記爲「X」。 又，關於掉點，係測定將透過蔭罩進行曝光之曝光步 驟18之曝光量連續地變化時第1顏色之綠色之螢光體膜之 最小掉點尺寸，且算出片面板之螢光體膜之平均最小掉 點尺寸。接著將該値以除了噴霧步驟15以外於面板內面所 形成之螢光體膜之平均最小掉點尺寸爲100時的相對値來 表示。又，表示之相對値係以100以下之物記爲「〇」、 超過100之物記爲「X」。 又，關於塗佈斑，係於面板內面形成螢幕膜的階段， 對以光照射面板內面2後之面板外面，藉目視來確認螢幕 膜上之紋斑、起泡斑、纖維斑等之塗佈斑的發生狀況。接 著將10片面板皆未發生塗佈斑之物記爲「〇」、發生任一 種塗佈斑之物記爲「X」。又’於括弧中記入了塗佈斑的 9 本紙張尺度適用中國國家標準(CNS>A4規格（210 X 297公楚) <請先閱讀背面之注意事項再填寫本頁)45750 〇 A7 B7 Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the Invention (I) [Background of Invention] The present invention relates to a method for manufacturing a cathode ray tube used in a television display, a computer monitor, and the like. A screen film forming step in a general cathode ray tube manufacturing method includes the steps of forming a phosphor film on the inner surface of a panel on which a monument film is formed, and applying a filming liquid on the phosphor film. ), And then drying the coated film-forming liquid with a heater, air, etc. to form a film; a stage of forming a metal film by vacuum evaporation on the film; after forming the metal film, heating until The temperature at which organic matter decomposes to remove the coating. In addition, in order to improve the adhesion of the phosphor film to the inner surface of the panel, before the phosphor film is formed on the inner surface of the panel, a carbon film formed on the inner surface of the panel is pre-coated (covered as a protective film) with polyethylene. Alcohol (hereinafter referred to as "PVA"). For example, in the stage where the phosphor film is formed on the inner surface of the panel, PVA is pre-coated on the inner surface of the panel where the carbon film is formed, and then the coating liquid for phosphor film formation is applied. After drying, the shadow is transmitted through the exposure method. A pattern-shaped exposure is performed on the phosphor film to make exposed and unexposed parts, and then the unexposed part of the phosphor film is removed by a developing method using pure water so as to form red in a predetermined part. Blue and green three-color phosphor film. In recent years, with the high definition of cathode ray tubes, the decrease in color purity has become quite significant. As for the manufacturing method of the above-mentioned cathode ray tube, since the phosphor film is formed on the inner surface of the panel, the inner surface of the panel is pre-coated with PVA, so the adhesiveness of the phosphor film on the inner surface of the panel can be added. improve. However, after developing with pure water, there will be 3 papers remaining on the unexposed part. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 Public Love 3 I ---------). ------- Order-! ------ Line · ^ (Please read the notes on the back before filling this page) Printed by the Consumer Cooperative of the Intellectual Property Staff of the Ministry of Economic Affairs A7 ___B7__ V. Description of Invention (V ) Part of the phosphor film, in the next step, the phosphor film and other colors of the phosphor film will occur the "color haze" of the required color mixing, and the problem of reducing the color purity of the cathode ray tube will occur. In addition, since PVA is a polymer resin, its spreadability (hereinafter referred to as "wetting property") is poor when it is applied as a coating liquid for phosphor film coating on the entire surface of the panel. Therefore, streaks on the surface of the phosphor film can be observed with the naked eye, blister spots on the phosphor film can be seen with the naked eye ', and PVA is applied during pre-coating. Around the device are spider-like filaments. This fiber will adhere to the inner surface of the panel, so that coating spots such as fiber spots running off the surface of the phosphor film will also cause a problem that the brightness of the cathode ray tube is reduced. [Simplified description of the invention] The present invention is a product obtained to solve the above problems. The manufacturing method of the cathode ray tube provided can form a screen film with less color fog and coating spots, and can improve color purity and brightness. The method for manufacturing a cathode ray tube of the present invention is characterized in that a solution containing a non-ionic surfactant is coated (pre-coated) on a carbon film on the inner surface of a panel, and then fluorescent light is formed on the inner surface of the panel. Body film. According to the manufacturing method of the present invention, a screen film can be formed on the entire surface of the panel. The wettability of the phosphor film is improved, and there is less occurrence of colored fog or coating spots. [Brief description of the drawings] Fig. 1 is a sectional view of a main part of a form of a glass panel of a cathode ray tube of the method for manufacturing a cathode ray tube of the present invention. 4 This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) ----- in ----j Pack -------- Order ----- I I-- (Please read the precautions on the back before filling in this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 45750 ^ A7 ___ B7 V. Description of the Invention (,) Figure 2 shows an example of the manufacturing method of the present invention. Illustration. [Embodiments of the Invention] Hereinafter, preferred embodiments of the manufacturing method of the present invention will be described. The non-surfactant HLB (hydrophile-lipophilic balance: hydrophUe-lip.ophiU balance) is preferably 10-18. If the HLB is lower than the coating, a coating spot called "cissing" may sometimes occur. Conversely, if the HLB is too high, the defoaming performance during foaming may deteriorate. The nonionic surfactant is preferably a sorbitan-containing ester, and more specifically a polyoxyethylene sorbitan fatty acid ester. The solution containing a polyethylene oxide sorbitan fatty acid ester is preferably an aqueous solution containing a polyethylene oxide sorbitan fatty acid ester. The concentration of the polyoxyethylene sorbitan fatty acid ester in this solution is preferably 0.1 to 1.0% by weight. Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a main part of a glass panel of a cathode ray tube manufactured according to a method of manufacturing a cathode ray tube according to the first embodiment of the present invention. A glass panel 1 has an inner surface (inner surface of the panel) 2 Carbon films 6, phosphor films 3a, 3b, 3c (corresponding to Green, Blue, Red, respectively), lacquer film 4, and Ming film 5 are formed in this order. Fig. 2 is a block diagram showing a state of manufacture of a cathode ray tube of the present invention. First, after washing the glass panel 1 with the panel washing step 7, the coating step 8 with the photosensitive liquid is applied to the inner surface 2 of the panel, for example, polyvinylpyrrolidone 5 This paper is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) ------------ ..) installed --- I --- I order _--- I ---- line 丨 d (please read the first Please fill in this page again if you are not interested) 1: ^ 457 6 u A7 _ B7 Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (if) A double azide-based photosensitive liquid (PVP-based photosensitive liquid), then Drying is performed in drying step 9. Secondly, exposure is performed in exposure step 10 through a shadow mask having a plurality of dot-shaped plural holes in such a manner that portions of phosphor films 3a, 3b, and 3c of green, blue, and red should be formed separately, and development step 11 is performed at the same time. The development is performed so that only the portions where the phosphor films 3a, 3b, and 3c of green, blue, and red should be formed remain the photosensitive film. Next, in the carbon coating step 12, a coating liquid containing, for example, carbon particles is coated on the inner surface 2 of the panel, followed by drying in the drying step 13 and then selectively removing only the inner surface 2 of the panel in the developing step Η. Photosensitive film formed in advance. Thereby, the carbon film 6 is formed in a region other than the portion where the phosphor films 3a, 3b, and 3c of each color are formed. Next, through the spraying step 15, at the inner surface 2 of the panel on which the carbon film 6 is formed, a non-ionic surfactant (preferably polyethylene oxide) having a concentration adjusted to 0.1 to 1.0% by weight is diluted with pure water. Spray and dry the aqueous solution of sorbitan fatty acid ester). Next, the phosphor coating step 16 is used to coat a green liquid of the first color with green phosphor particles and a mixture of PVA and ammonium dichromate (coating) on the inner surface 2 of the panel on which the carbon film 6 is formed. Liquid), and dried in the drying step 17. Next, exposure is performed through the shadow mask in the exposure step 18, and high-pressure warm pure water is sprayed on the inner surface 2 of the panel through the development step 19 to peel off and remove the green phosphor film of the first color of the unexposed portion. As a result, a green phosphor film 3a of the first color is formed at a predetermined position. Next, repeat the coating step 16, drying step 17, exposure step 18 ', and developing step 19 in the same manner to form a second color 6 at a predetermined position (please read the unintentional matter on the back before filling this page). Γ ί This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 丨 4575η 3 Α7 Β7 V. Description of the invention (<) Blue phosphor The film 3b is followed by the same steps, that is, the coating step 16, the drying step I7, the exposure step 18, and the developing step 19 are repeated to form a red phosphor film 3c of a third color on a predetermined portion. Next, a coating liquid is applied to the inner surface 2 of the panel forming the green, blue, and red phosphor films 3a, 3b, and 3c in a coating step 20, and then dried in a drying step 21. Next, aluminum is vapor-deposited on the inner surface 2 of the panel on which the paint film 4 is formed by the vapor deposition step 22 to form an aluminum film 5. Next, in the baking step 23, the glass panel 1 after forming the aluminum film 5 is placed in a heating furnace having a temperature of 400 to 450 ° C and heated to decompose and remove the organic paint film 4. That is, the manufactured screen film is formed on the panel inner surface 2 in order of a carbon film 6, a phosphor film 3, and an aluminum film 5. In the method for manufacturing the cathode ray tube of the present invention, since the carbon film 6 formed on the inner surface 2 of the panel is pre-coated with a diluted aqueous solution of polyethylene oxide sorbitan fatty acid ester, it can be used on the inner surface 2 of the panel. A screen film is comprehensively formed, in which the wettability of the phosphor films 3a, 3b, and 3c of the screen film is improved, and the occurrence of coating spots such as colored fog, streaks, blistering spots, and fiber spots is rare. . Therefore, the color purity and brightness of the cathode ray tube can be improved. Furthermore, by setting the concentration of the aqueous solution of the polyethylene oxide sorbitan fatty acid ester to 0.1 to 1.0% by weight, it is possible to further form a screen film with few occurrences of blisters and fibrous coating spots. However, as long as the above-mentioned effects can be obtained, the nonionic active interface agent used is not limited to polyethylene oxide sorbitan fatty acid ester. Alternatively, a solution containing a plurality of types of surfactants may be used. As the active interfacial agent that can be used, for example, non-isolated 7 --I --- IIII f I 7, in ---- 1 can be added to propylene glycol. --- 11 ( Please read the notes on the back before filling in this page} The paper size of the paper is applicable to Chinese national standards (CNS > A4 specifications < 210 X 297 mm) ^ 457508, A7 B7 Printed by the Employees ’Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs Description of the Invention (t) Sub-surfactants (such as Purronic manufactured by Asahi Kasei Corporation). In addition, components other than non-ionic surfactants can also be mixed into the solution. Among them, the main component of the solute (accounting for more than 50%) Ingredients) are preferably nonionic surfactants, especially polyethylene oxide sorbitan fatty acid esters. As explained above, it is better to spray the solution of nonionic surfactant onto the inner surface of the panel. This This is because foaming can be reduced compared to printing and coating a paste containing a surfactant. In addition, the spraying method can eliminate the step of reconciling the paste, so mass productivity can be improved. Examples Hereinafter, the present invention will be described in detail based on examples. However, the present invention is not limited to the following embodiments. In the manufacturing method of the cathode ray tube of the present invention shown in FIG. 2, the panel uses a 51 cm (21 inch) display monitor tube as part of the spraying step 15 The aqueous solution is an aqueous solution of polyethylene oxide sorbitan fatty acid ester (for example, Sugagen TW-20 manufactured by Daiichi Kogyo; HLB = 16.7). Then, the concentration was changed to 0.03, 0.1, 0.2, 0.5. , 1.0, and 3.0% by weight to produce a screen film on the inside of the panel (this panel is hereinafter referred to as "the product of the present invention"). ○ In order to compare with this, the aqueous solution of the spraying step 15 was made of polyethylene oxide sorbitan fatty acid. The aqueous solution of the ester was changed to the aqueous solution of PVA, except that the same manufacturing method was used as described above. Next, the concentration of the aqueous solution of the PVA (eg, EG-40 manufactured by Japan Synthetic Manufacturing Co., Ltd.) was changed to 0.03, 0.1, and 0.2. , 0.5, 1.0, and 3.0% by weight to produce a screen film on the inside of the panel (this panel is hereinafter referred to as "Comparative Product J".) 8 (Please read the precautions on the back before filling this page) ', binding · ·; . This paper size applies to China Standard (CNS) A4 specification (210 X 297 mm) 5 7 5 0 8 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (q) Then j investigate the color fog of the above things separately Dots, coating spots, and brightness. The results are shown in Table 1 and Table 2 ° Table 1 is a product of the present invention, and Table 2 is a comparative product. In addition, the color haze is formed on the inner surface of the panel to form a green In the stage of the phosphor film, the green fluorescence of the first color was measured at the position of the blue phosphor film of the second color and the red phosphor film of the third color at the unexposed portion. The number of bodies is used as the criterion for judgment. In detail, the number of other (green) phosphor residues (hereinafter referred to as "other phosphors") within one dot of a given color phosphor film The number of residues ") is more than 8 and it will become a quality problem of brightness and color purity. The total number of other phosphor residues within 1 point of a panel is 6 or less. It is "〇", and 7 or more things are recorded as "X". In addition, regarding the drop point, the minimum drop point size of the green phosphor film of the first color when the exposure amount in the exposure step 18 for exposure through a shadow mask is continuously changed is calculated, and the phosphor film of the panel is calculated. The average minimum drop size. Next, this volume is expressed as a relative volume when the average minimum drop size of the phosphor film formed on the inner surface of the panel except for the spraying step 15 is 100. In addition, the relative expressions are expressed as "0" for those below 100 and "X" for those exceeding 100. In addition, the coating spots are at the stage of forming a screen film on the inner surface of the panel. The outer surface of the panel after the inner surface 2 of the panel is irradiated with light is used to visually confirm the stains, blistering spots, and fiber spots on the screen film. The occurrence of coating spots. Next, the object where no coating spots occurred on all 10 panels was designated as "0", and the object where any coating spots occurred was designated as "X". Also ’9 paper sizes with coating spots in parentheses are in accordance with Chinese national standards (CNS > A4 size (210 X 297 cm) < please read the precautions on the back before filling this page)
裝 -·.___S -·線. 經濟部智慧財產局員工消費合作社印5-ΐι· A7 ______B7___.-. 五、發明說明（《） 形態。- 再者，關於亮度，係於面板內面形成有螢幕膜之陰極 射線管中，使用CRT色分析器(美樂達製造CRT色分析器 :CA_100)來測定矩形狀之螢幕之中央部的第1種顏色之 綠色之螢光體膜的亮度，並算岀10片面板之螢光體膜之平 均亮度値。接著將該値以除了噴霧步驟15以外於面板內面 所形成之螢光體膜之平均亮度爲100時的相對値來表示。 (表1) 發明品（聚環氯乙烷山製糖醇酐脂肪酸酯水溶液) 水溶液濃度 (wt%) 色霧(個） 最小掉點尺 寸(相對値） 塗佈斑 亮度湘對値) 0.03 0(5) 0(100) x(紋斑） 100 0.1 0(3) 0(100) 0 103 0.2 0(3) 0(100) 〇 104 0.5 0(4) 0(98) 〇 104 1.0 0(2) 0(97) 〇 103 3.0 0(3) 0(95) x(起泡斑） 102 (表2) 比較品(PVA水溶液） 水溶液濃度 色霧(個） 最小掉點尺 塗佈斑 亮度(相對値) (wt%) 寸(相對値） 0.03 ◦⑹ 0(100) X 100 0.1 0(6) 0(100) X 99 10 本紙張尺度適用中國國家標準（CNS>A4規格mo X 297公茇） -------- ^裝！ 一- /(^ (請先閱讀背面之注意事項再填寫本頁) 訂---------線 經濟部智慧財產局員工消費合作社印製 457 5 五 Α7 Β7 、發明說明（ 0.2 X⑺ 0(97) X 96 0.5 〇⑹ 0(96) X 97 1.0 X⑻ 0(95) X 96 3.0 X(9) X(107) X 95 就本發明品而言，如表1所示，當聚環氧乙烷山梨糖 醇酐脂肪酸酯系之水溶液的濃度爲0.1〜1.0重量％之時，可 形成少有色霧與塗佈斑等之發生的螢幕膜。亦即，關於色 霧，已確認濃度在0.03〜3重量°/。的情形下螢光體平均殘渣 個數爲5以下，又關於塗佈斑，已確認濃度在0.03重量。/。 有紋斑，又確認在3重量％有起泡斑。再者就本發明品而 言，由最小掉點尺寸欄等結果可看出雖然在濃度高的區域 ，接著性有若干的提升，惟與濃度變化無太大的關係，接 著性大致上爲一定α 相對於此，就比較品而言，如表2所示，關於色霧， 已確認PVA系之水溶液的濃度爲0.03〜3.0重量％的情彤下 螢光體平均殘渣個數爲6〜9，又隨著PVA濃度的增加色霧 亦增加。又，關於塗佈斑，已確認PVA濃度爲0.03〜1.0重 量％有紋斑、起泡斑以及纖維斑，又確認濃度爲3.0重量％ 有起泡斑與纖維斑。再者，就比較例而言，由最小掉點尺 寸欄等結果可看出雖然隨著PVA之濃度的增加接著性有提 升的傾向，惟PVA濃度超過1重量％附近相反的接著性會 顯著地降低。 又，聚環氧乙烷山梨糖醇酐脂肪酸酯與PVA皆未塗佈 的情形下，色霧與塗佈斑會更加顯著。 11 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） --------- I 1 1Λ7 --------訂----------線 (請先閱讀背面之注意事項再填寫本頁) 457 50 8 A7 B7 五、發明說明（） (請先閲讀背面之注意事項再填寫本頁) 從而」已知相較於比較品，本發明品尤可避免色霧與 塗佈斑的發生，並可提升使用該玻璃面板之陰極射線管中 之色純度與亮度。 又，上述內容之中，雖於形成第1種顏色之綠色之螢 光體膜之前，藉由噴霧步驟15，將聚環氧乙烷山梨糖醇酐 脂肪酸酯之水溶液噴霧、乾燥以進行預塗，惟本發明並不 侷限於此，亦可於形成第2種顏色之藍色之螢光體膜之前 、或是於形成第3種顏色之紅色之螢光體膜之前、或是於 形成第2種顏色之藍色之螢光體膜之前與於形成第3種顏. 色之紅色之螢光體膜之前，將聚環氧乙烷山梨糖醇酐脂肪 酸酯之水溶液噴霧、乾燥以進行預塗，或藉由噴霧步驟以 外（例如塗佈步驟等）於面板內面將聚環氧乙烷山梨糖醇酐 脂肪酸酯之水溶液塗佈、乾燥以進行預塗。 又，形成螢光體膜的順序雖就依序形成綠、藍、以及 紅色之螢光體膜加以說明，惟，亦可依序形成藍、綠、以 及紅色之螢光體膜’亦即螢光體膜的形成順序並無特定。 經濟部智慧財產局員工消費合作社印製 I -1........ i ^:' 如以上說明’本發明之陰極射線管之製造方法，係於 面板內面之彫成之碳膜上預塗聚環氧乙烷山梨糖醇酐脂肪 酸酯之水溶液’以形成少有色霧與塗佈斑之螢幕膜，使用 該面板之陰極射線管其色純度與亮度可獲得提升。 [符號說明] 1 玻璃面板 2 面板內面 3 螢光體膜 12 本紙張尺度適用中國國家標準（CNS)A4規格（210 χ 297公釐） _87 _87 A7 4i75〇8 五、發明說明（【丨） 4 5 6 漠摸摸 JJ f M. 漆鋁碳 (請先閱讀背面之汍意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 3 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）Equipment-· .___ S-· line. 5- 消费 ι · A7 ______ B7 ___.-. Of the Intellectual Property Bureau of the Ministry of Economic Affairs's Consumer Cooperatives. 5. Description of Invention ("). -In addition, the brightness is measured in a cathode ray tube with a screen film formed on the inner surface of the panel, and a CRT color analyzer (CRT color analyzer manufactured by Merlot: CA_100) is used to measure the central portion of the rectangular screen. The brightness of the green phosphor film of one color is calculated as the average brightness of the phosphor film of 10 panels. Next, this 値 is expressed as a relative 时 when the average brightness of the phosphor film formed on the inner surface of the panel except for the spraying step 15 is 100. (Table 1) Invented product (polycyclochloroethane mountain sugar alcohol anhydride fatty acid ester aqueous solution) Aqueous solution concentration (wt%) Haze (pieces) Minimum drop-out size (relative 値) Coating spot brightness Xiang 湘) 0.03 0 (5) 0 (100) x (spot) 100 0.1 0 (3) 0 (100) 0 103 0.2 0 (3) 0 (100) 〇104 0.5 0 (4) 0 (98) 〇104 1.0 0 (2 ) 0 (97) 〇103 3.0 0 (3) 0 (95) x (bubble spots) 102 (Table 2) Comparative product (PVA aqueous solution) Aqueous solution concentration haze (units) Minimum drop-off spot coating spot brightness (relative値) (wt%) inch (relative 値) 0.03 ◦ ⑹ 0 (100) X 100 0.1 0 (6) 0 (100) X 99 10 This paper size applies to Chinese national standards (CNS > A4 size mo X 297 cm) -------- ^ Install! I-/ (^ (Please read the notes on the back before filling out this page) Order --------- Printed by the Consumer Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 457 5 Five Α7 Β7, Invention Description (0.2 X⑺ 0 (97) X 96 0.5 〇 0 (96) X 97 1.0 X⑻ 0 (95) X 96 3.0 X (9) X (107) X 95 For the present invention, as shown in Table 1, when the polycyclic ring When the concentration of the aqueous solution of the oxyethane sorbitan fatty acid ester system is 0.1 to 1.0% by weight, a screen film with less occurrence of colored fog, coating spots, etc. can be formed. That is, regarding the colored fog, the concentration has been confirmed In the case of 0.03 to 3 weight ° /%, the average number of phosphor residues is 5 or less, and the concentration of coating spots has been confirmed to be 0.03% by weight. There are streaks, and foaming is also confirmed at 3% by weight. Furthermore, as far as the product of the present invention is concerned, it can be seen from the results of the minimum drop size column and the like that although there is a slight improvement in adhesion in a region with a high concentration, it does not have much relationship with the concentration change, and the adhesion is roughly For a certain α, as for the comparative products, as shown in Table 2, regarding the color haze, it has been confirmed that the concentration of the PVA-based aqueous solution is 0.03 to 3.0 weight. The average number of phosphor residues is 6 to 9 under the condition of %%, and the haze also increases with the increase of the PVA concentration. Also, with regard to coating spots, it has been confirmed that the PVA concentration is 0.03 to 1.0% by weight with streaks, Foaming spots and fibrous spots were confirmed to have a concentration of 3.0% by weight. Foaming spots and fibrous spots were confirmed. Furthermore, in the comparative example, it can be seen from the results of the minimum drop size column and the like that although the concentration of PVA increases, Adhesion tends to improve, but the opposite adhesion will decrease significantly when the PVA concentration exceeds 1% by weight. In addition, when neither polyethylene oxide sorbitan fatty acid ester nor PVA is applied, the color haze will occur. And coating spots will be more prominent. 11 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) --------- I 1 1Λ7 -------- order- --------- Line (Please read the notes on the back before filling this page) 457 50 8 A7 B7 V. Invention Description () (Please read the notes on the back before filling this page) Compared with the comparative product, the product of the present invention can avoid the occurrence of color fog and coating spots, and can improve the cathode ray using the glass panel. In addition, in the above, although the green phosphor film of the first color is formed, the polyethylene oxide sorbitan fatty acid ester is sprayed by the spraying step 15 The aqueous solution is sprayed and dried for pre-coating, but the present invention is not limited to this, and it can also be formed before the blue phosphor film of the second color is formed, or the red phosphor of the third color is formed. Before the film, or before forming the blue phosphor film of the second color and before forming the third color. Red phosphor film, the polyethylene oxide sorbitan fatty acid An aqueous solution of an ester is sprayed and dried to perform pre-coating, or an aqueous solution of a polyethylene oxide sorbitan fatty acid ester is coated and dried on the inner surface of the panel by a spraying step (such as a coating step, etc.) to perform pre-coating Painted. In addition, although the order of forming the phosphor film is explained by sequentially forming green, blue, and red phosphor films, it is also possible to sequentially form blue, green, and red phosphor films. The order of forming the photobody film is not specific. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs I -1 ........ i ^: 'As explained above' The manufacturing method of the cathode ray tube of the present invention is a carved carbon film on the inner surface of the panel Pre-coat the aqueous solution of polyethylene oxide sorbitan fatty acid ester 'to form a screen film with less colored fog and coating spots. The color purity and brightness of the cathode-ray tube using the panel can be improved. [Symbols] 1 Glass panel 2 Inside surface of the panel 3 Fluorescent film 12 This paper size is applicable to China National Standard (CNS) A4 (210 χ 297 mm) _87 _87 A7 4i75〇8 5. Description of the invention (【丨) 4 5 6 JJ f M. Lacquered aluminum carbon (Please read the notice on the back before filling out this page) Printed by the Consumers' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 3 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)