JPH0240833A - Manufacture of fluorescent screen for cathode-ray tube - Google Patents
Manufacture of fluorescent screen for cathode-ray tubeInfo
- Publication number
- JPH0240833A JPH0240833A JP19118088A JP19118088A JPH0240833A JP H0240833 A JPH0240833 A JP H0240833A JP 19118088 A JP19118088 A JP 19118088A JP 19118088 A JP19118088 A JP 19118088A JP H0240833 A JPH0240833 A JP H0240833A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- layer
- phosphor layer
- ray tube
- transfer material
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 93
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000011230 binding agent Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 16
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 7
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 72
- 238000000034 method Methods 0.000 claims description 31
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 abstract description 2
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 10
- 238000007650 screen-printing Methods 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 238000007646 gravure printing Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000004840 adhesive resin Substances 0.000 description 3
- 229920006223 adhesive resin Polymers 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- JSWPEXGHOFWWKT-UHFFFAOYSA-N cyclohexanone;3,5,5-trimethylcyclohex-2-en-1-one Chemical compound O=C1CCCCC1.CC1=CC(=O)CC(C)(C)C1 JSWPEXGHOFWWKT-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
Description
この発明は、陰極線管のフェースプレート上に蛍光膜を
効率よく形成する方法に関する。The present invention relates to a method for efficiently forming a fluorescent film on the face plate of a cathode ray tube.
従来、陰極線管のフェースプレート上に蛍光膜を形成す
る方法として、スラリー塗布露光法・沈降法などが用い
られているが、工程数が多く複雑であった。
そこで、最近工程が簡単であり、したがって設備コスト
が低く、また蛍光体のロスが著しく少ない陰極線管の蛍
光膜形成方法として転写法がある。
転写法とは、基体シート上に剥離層・アルミニウム層・
蛍光体層の順に積層形成された転写材の蛍光体層側表面
をガラス基板上に圧着したのち、上記剥離層から基体シ
ートを剥離して、ガラス基板上に蛍光体層およびアルミ
ニウム層からなる積層体を転写する方法である（特開昭
６０−１２６３７号参照）。
この方法に用いられる転写材は、プラスチックシートか
らなる基体シート上に基体シートを離型するための剥離
層とアルミニウム層と蛍光体層とが順次形成されたもの
である。この転写材をガラス基板と圧着させる。蛍光体
層は蛍光体と接着性を有する樹脂とから構成されている
ので基体シートを剥離すると、ガラス基板上に蛍光体層
とアルミニウム層と剥離層とが残る０次いで、ガラス基
板上に転写された積層体のアルミニウム層表面に残存す
る剥離層を熱処理工程により熱分解処理して除去するも
のである。Conventionally, methods such as slurry coating and exposure methods and sedimentation methods have been used to form a fluorescent film on the face plate of a cathode ray tube, but these methods involve a large number of steps and are complicated. Therefore, recently, a transfer method is available as a method for forming a phosphor film for a cathode ray tube, which has a simple process, low equipment cost, and significantly less loss of phosphor. The transfer method involves applying a release layer, an aluminum layer, and
After pressing the phosphor layer side surface of the transfer material, in which the phosphor layer is laminated in this order, onto a glass substrate, the base sheet is peeled off from the release layer, and the phosphor layer and aluminum layer are laminated on the glass substrate. This is a method of transferring the body (see Japanese Patent Application Laid-open No. 12637/1983). The transfer material used in this method is one in which a release layer for releasing the base sheet, an aluminum layer, and a phosphor layer are sequentially formed on a base sheet made of a plastic sheet. This transfer material is pressed onto a glass substrate. The phosphor layer is composed of phosphor and adhesive resin, so when the base sheet is peeled off, the phosphor layer, aluminum layer, and release layer remain on the glass substrate. The peeling layer remaining on the surface of the aluminum layer of the laminate is thermally decomposed and removed by a heat treatment process.
しかし、上記の転写材は、蛍光体層が接着性を有するよ
うに構成されたものであるので、次のような欠点がある
。
陰極線管のフェースプレート上に転写を行なうためには
、転写工程において、蛍光体層が確実に接着されなけれ
ばならない。そのためには、蛍光体層中に接着性を有す
る樹脂が十分な量含有されていなければならない、しか
し、このように蛍光体層を構成すると、蛍光体層中の蛍
光体の量が少なくなり、十分に発光させることができな
くなる。
つまり、十分な輝度で陰極線管を発光させるためには、
上記の転写材において蛍光体層中の蛍光体含有量を十分
多くしなければならない、しかし、このようにすると蛍
光体層中の樹脂の割合が減少するので、接着力が不足し
良好な転写を行なうことができなくなる。
また、蛍光体の量を確保するための別の方法として、蛍
光体層の層厚を太き（し、蛍光体も接着性樹脂も十分含
有されるようにしてもよい、このように蛍光体層を構成
すると、接着力は得られるが蛍光体層中の樹脂成分が多
くなるので、焼成工程後に樹脂成分が飛散したのち蛍光
膜はポーラスとなり、その表面は粗面となる。
前記した従来の転写材は、光源用陰極線管の蛍光膜を形
成するのに用いられるものであり、陰極線管の蛍光膜は
電子線によって走査されず、単に蛍光面が照射されるだ
けであるから、粗面であっても特に問題にはならない。
しかし、陰極線管の蛍光膜は、光源用陰極線管と異なり
、ただ発光すればよいだけでなく、電子線の走査に応じ
て発光して画面を形成することが必要である。陰極線管
は、蛍光膜が平滑でないと微細な表現を行なうことがで
きない。
この発明の目的は以上のような問題点を解決し、陰極線
管のフェースプレート上に、クラックやピンホールのな
い平滑性に優れた蛍光膜を形成することのできる陰極線
管の蛍光膜形成方法を提供することにある。However, since the above-mentioned transfer material is configured such that the phosphor layer has adhesive properties, it has the following drawbacks. In order to transfer onto the face plate of a cathode ray tube, the phosphor layer must be reliably adhered during the transfer process. For this purpose, the phosphor layer must contain a sufficient amount of adhesive resin. However, when the phosphor layer is configured in this way, the amount of phosphor in the phosphor layer decreases. It becomes impossible to emit sufficient light. In other words, in order to make the cathode ray tube emit light with sufficient brightness,
In the above-mentioned transfer material, the phosphor content in the phosphor layer must be sufficiently increased. However, if this is done, the proportion of resin in the phosphor layer decreases, resulting in insufficient adhesive strength and poor transfer. become unable to do so. Another method for securing the amount of phosphor is to increase the thickness of the phosphor layer so that both the phosphor and the adhesive resin are sufficiently contained. By forming a layer, adhesive strength can be obtained, but since the resin component in the phosphor layer increases, the resin component scatters after the firing process, and the phosphor film becomes porous and its surface becomes rough. The transfer material is used to form the fluorescent film of the cathode ray tube for the light source.The fluorescent film of the cathode ray tube is not scanned by the electron beam, but only the fluorescent screen is irradiated, so the surface is rough. However, unlike cathode ray tubes used as light sources, the fluorescent film of cathode ray tubes does not only emit light, but also emit light in response to the scanning of electron beams to form a screen. Cathode ray tubes cannot produce minute images unless the phosphor film is smooth.The purpose of this invention is to solve the above-mentioned problems and prevent cracks and pinholes on the face plate of cathode ray tubes. It is an object of the present invention to provide a method for forming a phosphor film for a cathode ray tube, which can form a phosphor film with excellent smoothness and no cracks.
【課題を解決するための手段］
この発明は、以上の目的を達成するために、転写法を応
用して次のように構成した。すなわち、この発明の陰極
線管の蛍光膜形成方法は、蛍光体をアクリル系樹脂のバ
インダーに分散させ、蛍光体とバインダーの樹脂固形分
の比が１００／６０〜１００１５である蛍光体層が形成
された転写材を用い、陰極線管のフェースプレート上に
蛍光体層を転写し、次いで蛍光体層を焼成するように構
成した。
また、この発明の他の陰極線管の蛍光膜形成方法は、蛍
光体をポリビニルブチラール樹脂のバインダーに分散さ
せ、蛍光体とバインダーの比が１００／４０〜１００１
５である蛍光体層が形成された転写材を用い、陰極線管
のフェースプレート上に蛍光体層を転写し、次いで蛍光
体層を焼成するように構成した。
図面を参照しながらこの発明をさらに詳しく説明する。
第１図はこの発明に用いる転写材の一実施例を示す断面
図である。第２図は転写工程を示す断面図である。１は
ベースフィルム、２は剥離層、５は蛍光体層、６は接着
層、７は転写材、８はフェースプレートをそれぞれ示す
。
ベースフィルムｌとしては、ポリエチレンテレフタレー
トやポリエステル・ポリプロピレン・ポリエチレン・ナ
イロン・セロハンなどのプラスチックフィルム、あるい
はこれらと紙との複合フィルムなど通常の転写材のベー
スフィルムとして用いられるものを使用する。ベースフ
ィルムｌに剥離性を付与するためには、このベースフィ
ルム１にシリコンコートやワックスコートを施したり、
剥離層２を設けるとよい、剥離層２としては、熱可塑性
樹脂や天然ゴム・合成ゴムなどを用い、グラビア印刷法
・スクリーン印刷法・ロールコート法などの通常の印刷
法などで形成される。
蛍光体層５としては、蛍光体にＺｎＳ：ＡｇやＳｎＳ：
Ｃｕ。
ＡＩ、 ＹｚＯｔＳ：Ｅｕなど従来から陰極線管に使用
されている蛍光体を用い、アクリル系あるいはポリビニ
ルブチラール樹脂をバインダーとしてインキ化したもの
を使用する。インキ化する際は適切な粘度を有するよう
に溶剤などで希釈する。蛍光体とバインダーの比は、ア
クリル系樹脂の場合１００／６０〜１００１５、ポリビ
ニルブチラール樹脂の場合１００／４０〜１００１５が
望ましい、いずれの樹脂の場合も１００／６０あるいは
１００／４０よりも樹脂分が多いと、蛍光体含有量が少
なすぎるため、焼成後樹脂が飛散するとともに形成され
る蛍光膜面がポーラスになり、表面の平滑性が損なわれ
る。また、いずれの樹脂の場合も１００１５より樹脂分
が少ないと、蛍光体の分散核層が悪くなり美麗な印刷が
できないばかりか、転写時にベースフィルムｌを剥離す
るときに剥離バランス（接着性）をくずし、蛍光体層中
で層内剥離（凝集破壊）を引き起こす、インキ化したも
のは、シリコンオイルなどの分散剤や消泡剤、あるいは
レベリング剤が添加されていてもよい。
蛍光体層５の形成方法としては、必要とする膜厚および
蛍光体の粒径を考慮すると、スクリーン印刷法にて印刷
するのが望ましい、蛍光体層５は、平滑性に優れたベー
スフィルム１上または剥離層２上の上に形成されるので
、そのベースフィルムｌ側の面も平滑性に優れたもので
ある。蛍光体層５は、画面の形状に応じて形成する。ま
た、カラー用陰極線管の場合は、蛍光体層５は赤・青・
緑の３色の蛍光体を互いに接触しないようにストライプ
状またはドツト状に規則正しく配列して形成すればよい
。
接着層６は、陰極線管のフェースプレートに用いられる
ガラス材料に接着性のよいポリアミドなどの樹脂を用い
、感熱感圧型の接着層とするとよい、その形成方法は、
グラビア印刷法・スクリーン印刷法・ロールコート法な
どの通常の印刷法を用いるとよい。
以上述べたような層構成の転写材７を用い、陰極線管の
フェースプレート８上に蛍光膜を形成する。
まず、転写材７をフェースプレート８上に重ね合わせ、
加熱加圧を行い、接着層をフェースプレート８に融着さ
せる。このときの温度は１３０〜２３０°Ｃ１圧力は３
〜１５０ｋｇ／ｃ−が適当である。
次に、ベースフィルム１を剥すと、転写材７はベースフ
ィルム１のみが剥離し、フェースプレート８上に、接着
層６・蛍光体層５などが転写される（第２図参照）、蛍
光体ＦＪ５表面は、ベースフィルム１あるいは剥離層２
により平滑性の優れたものとなる。
次いで、フェースプレート８を焼成して蛍光体以外の有
機成分を除去することにより蛍光膜を完成させる。
【実施例】
皇Ｕ土
厚さ２５μｍのポリエステルフィルム上に、下記の組成
ｌからなるインキを用いてグラビア印刷法にて膜厚ｌＩ
Ｉｍの剥離層を設け、続いてその上に組成２からなるイ
ンキを用いてスクリーン印刷法にて膜厚３０μｍの蛍光
体層を設け、さらに蛍光体層の全面を覆うように組成３
からなるインキを用いてスクリーン印刷法にて膜厚５μ
ｍの接着層を設け、転写材を得た（第１図参照）。
組成１ （重量部）アクリル
樹脂 １０トルエン
４５メチルエチルケトン
４５組成２ （重量部）
アクリル樹脂 １５蛍光体粉末
（ＹｒＯｇＳ：Ｅｕ） ４０イソホロン
１０シクロへキサノン
３５組成３ （
重量部）ポリアミド樹脂 ３０エチ
ルセロソルブ ３０シクロへキサノン
４０このようにして得られた転写
材をフェースプレ−トに１５０℃、５ｋｇ／ｃｄにて転
写し、次いで４５０℃にて３０分間焼成することにより
フェースプレート上の有機成分を除去し、フェースプレ
ート上に蛍光膜を形成した。
裏腹Ｌ２−
厚さ２５．ｕｍのポリエステルフィルム上に、前記の組
成１からなるインキを用いてグラビア印刷法にて膜厚ｌ
ＩＩｍの剥離層を設け、その上にアルミニウムを用いて
真空蒸着法にて１０ｏｎ−の膜厚でメタルバック層を設
け、つづいてその上に組成４からなるインキを用いてス
クリーン印刷法にて膜厚３０ｐｍの蛍光体層を設けた。
蛍光体層とメタルバック層の全面を覆うように組成３か
らなるインキを用いてスクリーン印刷法にて膜厚５μｍ
の接着層を設けて転写材を得た。
組成４ （重量部）ポリビニ
ルブチラール樹脂１０
蛍光体粉末（ＹｔＯｚＳ：Ｅｕ） ３０イ
ソホロン
シクロヘキサノン
この転写材をフェースプレートに１５０°Ｃ，５ｋｇ／
ｄにて転写し、次いで４５０°Ｃにて３０分間焼成する
ことによりフェースプレート上の有機成分を除去し、フ
ェースプレート上に蛍光膜を形成した。[Means for Solving the Problems] In order to achieve the above object, the present invention is configured as follows by applying a transfer method. That is, in the method for forming a phosphor film of a cathode ray tube of the present invention, a phosphor is dispersed in an acrylic resin binder, and a phosphor layer is formed in which the ratio of resin solid content of the phosphor to the binder is 100/60 to 10015. The phosphor layer was transferred onto the face plate of the cathode ray tube using a transfer material prepared by the manufacturer, and then the phosphor layer was fired. Further, in another method of forming a fluorescent film for a cathode ray tube according to the present invention, the fluorescent material is dispersed in a binder of polyvinyl butyral resin, and the ratio of the fluorescent material to the binder is 100/40 to 1001.
The phosphor layer was transferred onto the face plate of a cathode ray tube using a transfer material having a phosphor layer formed thereon as shown in No. 5, and then the phosphor layer was fired. The present invention will be explained in more detail with reference to the drawings. FIG. 1 is a sectional view showing one embodiment of a transfer material used in the present invention. FIG. 2 is a sectional view showing the transfer process. 1 is a base film, 2 is a release layer, 5 is a phosphor layer, 6 is an adhesive layer, 7 is a transfer material, and 8 is a face plate. As the base film 1, there is used a plastic film such as polyethylene terephthalate, polyester, polypropylene, polyethylene, nylon, or cellophane, or a composite film of these and paper, which is used as a base film for ordinary transfer materials. In order to impart releasability to the base film 1, the base film 1 may be coated with a silicone coat or a wax coat, or
A release layer 2 is preferably provided.The release layer 2 is formed using a thermoplastic resin, natural rubber, synthetic rubber, or the like, and by a normal printing method such as a gravure printing method, a screen printing method, or a roll coating method. As the phosphor layer 5, ZnS:Ag or SnS:
Cu. Phosphors conventionally used in cathode ray tubes, such as AI and YzOtS:Eu, are used, and ink is used with acrylic or polyvinyl butyral resin as a binder. When making ink, it is diluted with a solvent or the like so that it has an appropriate viscosity. The ratio of phosphor to binder is preferably 100/60 to 10015 in the case of acrylic resin and 100/40 to 10015 in the case of polyvinyl butyral resin. If it is too large, the phosphor content is too small, and the resin scatters after firing, and the surface of the phosphor film formed becomes porous, impairing the smoothness of the surface. In addition, if the resin content of any resin is lower than 10015, the phosphor dispersion core layer will deteriorate and beautiful printing will not be possible. In the case of ink, which causes breakage and intralayer peeling (cohesive failure) in the phosphor layer, a dispersant such as silicone oil, an antifoaming agent, or a leveling agent may be added. As a method for forming the phosphor layer 5, it is preferable to print by screen printing in consideration of the required film thickness and particle size of the phosphor.The phosphor layer 5 is formed using a base film 1 having excellent smoothness. Since it is formed on top or on the release layer 2, its surface on the base film l side also has excellent smoothness. The phosphor layer 5 is formed according to the shape of the screen. In addition, in the case of a color cathode ray tube, the phosphor layer 5 is red, blue,
The phosphors of the three green colors may be formed by regularly arranging them in stripes or dots so that they do not touch each other. The adhesive layer 6 is preferably a heat-sensitive and pressure-sensitive adhesive layer using a resin such as polyamide that has good adhesion to the glass material used for the face plate of the cathode ray tube.The method for forming it is as follows:
Ordinary printing methods such as gravure printing, screen printing, and roll coating may be used. Using the transfer material 7 having the layered structure described above, a fluorescent film is formed on the face plate 8 of the cathode ray tube. First, the transfer material 7 is placed on the face plate 8,
Heat and pressure are applied to fuse the adhesive layer to the face plate 8. At this time, the temperature is 130 to 230°C, and the pressure is 3
~150 kg/c- is suitable. Next, when the base film 1 is peeled off, only the base film 1 of the transfer material 7 is peeled off, and the adhesive layer 6, phosphor layer 5, etc. are transferred onto the face plate 8 (see Fig. 2). The surface of FJ5 is base film 1 or release layer 2.
This results in excellent smoothness. Next, the face plate 8 is fired to remove organic components other than the phosphor, thereby completing the phosphor film. [Example] On a polyester film with a thickness of 25 μm, a film thickness of lI was applied by gravure printing using an ink having the following composition l.
A release layer of Im is provided, and then a phosphor layer with a thickness of 30 μm is provided thereon by screen printing using an ink of composition 2, and a phosphor layer of composition 3 is further applied so as to cover the entire surface of the phosphor layer.
A film thickness of 5μ was created using the screen printing method using an ink consisting of
A transfer material was obtained by providing an adhesive layer of m (see FIG. 1). Composition 1 (Parts by weight) Acrylic resin 10 Toluene
45 methyl ethyl ketone
45 composition 2 (parts by weight)
Acrylic resin 15 Phosphor powder (YrOgS:Eu) 40 Isophorone
10cyclohexanone
35 Composition 3 (
Weight parts) Polyamide resin 30 Ethyl cellosolve 30 Cyclohexanone 40 The thus obtained transfer material was transferred to a face plate at 150°C at 5 kg/cd, and then baked at 450°C for 30 minutes. The organic components on the face plate were removed and a fluorescent film was formed on the face plate. Underside L2 - Thickness 25. A film thickness of l is printed on a polyester film of um by gravure printing using the ink of composition 1 described above.
A release layer of IIm is provided, and a metal back layer of 10 on- is provided on it using aluminum by vacuum evaporation, and then a film is formed using an ink having composition 4 by screen printing. A phosphor layer with a thickness of 30 pm was provided. A film thickness of 5 μm was formed by screen printing using an ink consisting of composition 3 so as to cover the entire surface of the phosphor layer and metal back layer.
A transfer material was obtained by providing an adhesive layer. Composition 4 (Parts by weight) Polyvinyl butyral resin 10 Phosphor powder (YtOzS:Eu) 30 Isophorone cyclohexanone This transfer material was applied to a face plate at 150°C, 5 kg/
d, and then baked at 450° C. for 30 minutes to remove organic components on the face plate, thereby forming a fluorescent film on the face plate.
この発明の陰極線管の蛍光膜形成方法は、蛍光体をアク
リル系樹脂のバインダーに分散させ、蛍光体とバインダ
ーの比が１００／６０〜１００１５である蛍光体層が形
成された転写材を用い、あるいは蛍光体をポリビニルブ
チラール樹脂のバインダーに分散させ、蛍光体とバイン
ダーの比が１００／４０〜１００１５である蛍光体層が
形成された転写材を用い、陰極線管のフェースプレート
上に蛍光体層を転写し、次いで蛍光体層を焼成するよう
に構成されているので、蛍光膜を効率よ（生産すること
ができ、量産性に優れたものである。The method for forming a phosphor film for a cathode ray tube according to the present invention uses a transfer material in which a phosphor layer is formed, in which a phosphor is dispersed in an acrylic resin binder and the ratio of the phosphor to the binder is 100/60 to 10015. Alternatively, the phosphor layer is dispersed in a polyvinyl butyral resin binder and the phosphor layer is formed on the face plate of the cathode ray tube using a transfer material with a phosphor layer having a phosphor to binder ratio of 100/40 to 10015. Since the structure is such that the phosphor layer is transferred and then fired, the phosphor layer can be produced efficiently and has excellent mass productivity.
第１図はこの発明の転写材の一実施例を示す断面図であ
る。第２図は転写工程を示す断面図である。
１・・・ベースフィルム、２・・・剥離層、５・・・蛍
光体層、６・・・接着層、７・・・転写材、８・・・フ
ェースブレト。
特許出願人 日本写真印刷株式会社
１・・・ベースフィルム
２・・・剥離層
５・・・蛍光体層
６・・・接着層
７・・・転写材
８・・・フェースプレートFIG. 1 is a sectional view showing an embodiment of the transfer material of the present invention. FIG. 2 is a sectional view showing the transfer process. DESCRIPTION OF SYMBOLS 1... Base film, 2... Peeling layer, 5... Phosphor layer, 6... Adhesive layer, 7... Transfer material, 8... Face bullet. Patent applicant Nissha Printing Co., Ltd. 1...Base film 2...Peeling layer 5...Phosphor layer 6...Adhesive layer 7...Transfer material 8...Face plate
Claims (1)
蛍光体とバインダーの比が１００／６０〜１００／５で
ある蛍光体層（５）が形成された転写材（７）を用い、
陰極線管のフェースプレート上に蛍光体層（５）を転写
し、次いで蛍光体層（５）を焼成することを特徴とする
陰極線管の蛍光膜形成方法。 ２、蛍光体をポリビニルブチラール樹脂のバインダーに
分散させ、蛍光体とバインダーの比が１００／４０〜１
００／５である蛍光体層（５）が形成された転写材（７
）を用い、陰極線管のフェースプレート上に蛍光体層（
５）を転写し、次いで蛍光体層（５）を焼成することを
特徴とする陰極線管の蛍光膜形成方法。 ３、転写材（７）が、剥離性を有するベースフィルム（
１）上に、蛍光体層（５）・接着層（６）が順次積層さ
れたものである請求項１または２記載の陰極線管の蛍光
膜形成方法。[Claims] 1. Dispersing the phosphor in an acrylic resin binder,
Using a transfer material (7) on which a phosphor layer (5) with a phosphor to binder ratio of 100/60 to 100/5 is formed,
A method for forming a phosphor film for a cathode ray tube, comprising transferring a phosphor layer (5) onto a face plate of the cathode ray tube, and then firing the phosphor layer (5). 2. The phosphor is dispersed in a polyvinyl butyral resin binder, and the ratio of the phosphor to the binder is 100/40 to 1.
Transfer material (7) on which a phosphor layer (5) of 00/5 was formed
) on the faceplate of the cathode ray tube (
5), and then baking the phosphor layer (5). 3. The transfer material (7) is a base film with releasability (
3. The method of forming a phosphor film for a cathode ray tube according to claim 1, wherein a phosphor layer (5) and an adhesive layer (6) are sequentially laminated on the phosphor layer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19118088A JPH0240833A (en) | 1988-07-29 | 1988-07-29 | Manufacture of fluorescent screen for cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19118088A JPH0240833A (en) | 1988-07-29 | 1988-07-29 | Manufacture of fluorescent screen for cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0240833A true JPH0240833A (en) | 1990-02-09 |
Family
ID=16270234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19118088A Pending JPH0240833A (en) | 1988-07-29 | 1988-07-29 | Manufacture of fluorescent screen for cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0240833A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001358370A (en) * | 2000-06-13 | 2001-12-26 | Matsushita Electric Ind Co Ltd | Wavelength conversion paste material and semiconductor light emitting device and its manufacturing method |
| JP2002241586A (en) * | 2001-02-19 | 2002-08-28 | Matsushita Electric Ind Co Ltd | Wavelength conversion paste material, composite light- emitting element, semiconductor light-emitting device, and method for producing the same |
-
1988
- 1988-07-29 JP JP19118088A patent/JPH0240833A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001358370A (en) * | 2000-06-13 | 2001-12-26 | Matsushita Electric Ind Co Ltd | Wavelength conversion paste material and semiconductor light emitting device and its manufacturing method |
| JP2002241586A (en) * | 2001-02-19 | 2002-08-28 | Matsushita Electric Ind Co Ltd | Wavelength conversion paste material, composite light- emitting element, semiconductor light-emitting device, and method for producing the same |
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