JPS5888763A - Image developer for high frequency fixing - Google Patents
Image developer for high frequency fixingInfo
- Publication number
- JPS5888763A JPS5888763A JP56188185A JP18818581A JPS5888763A JP S5888763 A JPS5888763 A JP S5888763A JP 56188185 A JP56188185 A JP 56188185A JP 18818581 A JP18818581 A JP 18818581A JP S5888763 A JPS5888763 A JP S5888763A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- developer
- resin
- high frequency
- blocking
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/093—Encapsulated toner particles
- G03G9/0935—Encapsulated toner particles specified by the core material
- G03G9/09357—Macromolecular compounds
- G03G9/09371—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/093—Encapsulated toner particles
- G03G9/09307—Encapsulated toner particles specified by the shell material
- G03G9/09314—Macromolecular compounds
- G03G9/09321—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は電子写真法、静電記録法、磁気記録法等におい
て、電気的潜像或いは磁気的潜像等を現像し、高周波加
熱によって定着する顕画剤に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a developer that develops an electrical latent image or a magnetic latent image and fixes it by high-frequency heating in electrophotography, electrostatic recording, magnetic recording, or the like.
従来の定着方法には熱ローラ法、ヒートチェンバー法、
等が提案されているが、いずれも余熱が必要であり、熱
ローラによるトナーのオフセットが生じもヒートチェン
バー内における記録材の火災の心配がある、等の欠点を
有している。Conventional fixing methods include heat roller method, heat chamber method,
These methods have been proposed, but all of them require residual heat and have drawbacks such as the risk of a fire in the recording material in the heat chamber if the toner is offset by the heat roller.
又、これらの定着法に使用するトナーの成分には低融点
の熱可塑性樹脂を使用することが望ましいことが知られ
ている。顕画剤には熱が外部より与えられる為、上記樹
脂が顕画側表面層にある事が上記樹脂を効率良く溶融さ
せる為に必要である。特に熱ローラの場合には顕画剤表
面が溶融することにより熱ローラとの接触が良くなる為
に効果がより顕著となる。It is also known that it is desirable to use a thermoplastic resin with a low melting point as a component of the toner used in these fixing methods. Since heat is applied to the developing agent from the outside, it is necessary that the resin be present on the developing side surface layer in order to efficiently melt the resin. Particularly in the case of a heated roller, the surface of the developing agent melts to improve contact with the heated roller, making the effect more pronounced.
しかし、一方顕画剤表面に低融点の熱可塑樹脂を保持し
ている場合には、顕画剤のおかれる環境1でブロッキン
グを生じてしまう恐れがある為に、融点の低い樹脂を効
果的に使用するこ 2とが出来なかった。However, if a thermoplastic resin with a low melting point is held on the surface of the developer, blocking may occur in the environment 1 in which the developer is placed, so the resin with a low melting point is not used effectively. It was not possible to use it for this purpose.
これに対して高周波加熱による定着法は前述の従来の定
鳥法の欠点のない定着方法である。On the other hand, the fixing method using high frequency heating is a fixing method that does not have the drawbacks of the conventional fixing method described above.
高周波加熱定着は顕画剤が高い周波数の電磁界中におか
れた時に顕画剤中に含まれる物質の誘電損失、うず電流
損失、磁気損失による発熱により顕画剤の主たる熱可塑
性樹脂を融かして記録拐に顕画剤を融着させるものであ
る。しかし一般にうず電流損失、磁気損失による発熱を
利用しつる物質は金稿、磁性体であれこの物質自身は溶
融しない為、顕画剤に多く含有させるとむしろ定着性を
落としてしまう。又、金属を含有させる場合には放電を
起す危険がある等の欠点も有している。In high-frequency heat fixing, when a developer is placed in a high-frequency electromagnetic field, heat generated by dielectric loss, eddy current loss, and magnetic loss of the substances contained in the developer melts the thermoplastic resin, which is the main component of the developer. In this way, the developing agent is fused to the record strip. However, in general, materials that utilize heat generation due to eddy current loss and magnetic loss, such as gold plates and magnetic materials, do not melt themselves, so if a large amount is included in the developer, the fixing properties will actually deteriorate. Furthermore, when metals are included, there is also a drawback that there is a risk of causing electrical discharge.
こねに対して誘電損失による発熱で溶融する熱可塑性樹
脂は、樹脂自身が溶融する論、顕画剤として非常に有用
な成1分である。Thermoplastic resin, which melts due to heat generated by dielectric loss during kneading, is a very useful component as a developing agent since the resin itself melts.
しかし、この熱可塑性樹脂を顕画削表血層に用いる場合
には前述のようにに+ Th+剤がブロッキングする恐
れがあり融点の非常に低い樹脂が使用出来41かった。However, when this thermoplastic resin is used for the microscopically excised superficial blood layer, a resin with a very low melting point cannot be used because the +Th+ agent may block as described above.
本発明は、かかる問題点を解決すると共に非隼に効率良
く定着させうる顕画剤を提供するものである。The present invention solves these problems and provides a developing agent that can be efficiently fixed on non-falcons.
DIIち、本発明の特徴とするところは、単体では顕画
剤のおかれる環境下でブロッキングを生ずるような低融
点の熱可塑性樹脂を顕画剤の内部に局在化させることに
より(1)ブロッキングの心配のない、かつ高周波加熱
定着においては顕画剤は内部からも発熱する為(2)外
気への放熱量η・夕なく発熱溶融しやすい、品の上(8
)顕画剤の内部の樹脂が速やかに溶融して液状になるこ
とによって発熱がより促進される、非常に効率の良い顕
画剤を提供するものである。DII, the feature of the present invention is that by localizing a thermoplastic resin with a low melting point inside the developer, which causes blocking in the environment where the developer is placed, (1) There is no need to worry about blocking, and in high-frequency heat fixing, the developing agent generates heat from within. (2) Amount of heat released to the outside air η.
) The present invention provides a highly efficient developing agent in which the resin inside the developing agent quickly melts and becomes liquid, thereby further promoting heat generation.
一般に粉体顕画剤は50℃の環境下においてブロッキン
グを生じないことが必要とされる。Generally, powder developing agents are required not to cause blocking in an environment of 50°C.
ト2電損失による発熱が期待できる反面、融点が低い為
ブロッキングを起こす恐れのある物質は多数あるが、例
をあげると次のようなものがある。エポキシ樹脂、ステ
アリン酸、ジクロルペンゾール、無水マレイン酸、チオ
硫酸ナトリウム、グリセリン、ナフタリン、パラフィン
などである。Although heat generation can be expected due to electric loss, there are many substances that may cause blocking due to their low melting points. Examples include the following. These include epoxy resin, stearic acid, dichlorpenzole, maleic anhydride, sodium thiosulfate, glycerin, naphthalene, and paraffin.
カプセルトナーの外殻を構成する物質としては種々の樹
脂類が使用し得るが、被膜形成能が良好であるもの、止
又は負荷電圧が良好であるもの、非凝集性であるもの、
加熱定着しやすいものなどが特に好ましい。例えば、ポ
リスチレン、ポリーP−クロルスチレン、ポリビニルト
ルエン、スチレン−ブタジェン共重合体、スチレン−ア
クリル酸共重合体、スチレン−無水マレイン酸共重合体
などのスチレン又はその置換体の重合体又は共重合体、
ポリエステル樹脂、アクリル系樹脂、キシレン樹脂、ポ
リアミド樹脂、アイオノマー樹脂、フラン樹脂、ケトン
樹脂、テルペン樹脂、フェノール変性テルペン樹脂、ロ
ジン、ロジン変性ペンタエリスリトールエステル、天然
樹脂変性フェノール樹脂、天然樹脂変性マレイン酸樹脂
、クマロンインデン樹脂、マレイン酸変性フェノール樹
脂、脂環族炭化水素樹脂2石油樹脂、フタル酸酢酸セル
ロース、メチルビニルエーテル−無水マレイン酸共重合
体、澱粉グラフト重合体、ポリビニルピロリドン、塩素
化パラフィン、ワックス、環化ゴム、脂肪酸などが単独
或いは混合して使用出来る。Various resins can be used as the material constituting the outer shell of the capsule toner, but those that have good film-forming ability, those that have good stopping or load voltage, and those that are non-cohesive.
Particularly preferred are those that can be easily heat-fixed. For example, polymers or copolymers of styrene or its substituted products, such as polystyrene, poly-P-chlorostyrene, polyvinyltoluene, styrene-butadiene copolymer, styrene-acrylic acid copolymer, and styrene-maleic anhydride copolymer. ,
Polyester resin, acrylic resin, xylene resin, polyamide resin, ionomer resin, furan resin, ketone resin, terpene resin, phenol-modified terpene resin, rosin, rosin-modified pentaerythritol ester, natural resin-modified phenol resin, natural resin-modified maleic acid resin , coumaron indene resin, maleic acid-modified phenolic resin, alicyclic hydrocarbon resin 2 petroleum resin, cellulose acetate phthalate, methyl vinyl ether-maleic anhydride copolymer, starch graft polymer, polyvinylpyrrolidone, chlorinated paraffin, wax , cyclized rubber, fatty acids, etc. can be used alone or in combination.
本発明のカプセルトナーの芯または外殻中には着色・荷
電制御・定着性向上等の目的の為にカーボンブラック、
鉄黒、グラファイト、ニグロシン、 金Xl[−、tl
、フタロシアニンブルー、ハンザイエロー、ベンジジン
イエロー、キナクリドン、各種レーキ顔料、コロイダル
シリカ、ワックス、パラフィン、脂肪酸及びその金属塩
、チタン酸バリウムなどの強誘電体などを添加しても良
い。Carbon black is contained in the core or outer shell of the capsule toner of the present invention for the purpose of coloring, controlling charge, improving fixing properties, etc.
Iron black, graphite, nigrosine, gold Xl [-, tl
, phthalocyanine blue, Hansa yellow, benzidine yellow, quinacridone, various lake pigments, colloidal silica, wax, paraffin, fatty acids and their metal salts, ferroelectrics such as barium titanate, etc. may be added.
本発明のトナーを磁性トナーとして用いるためには、芯
または外殻に磁性粉を含有せしめれば良く、そのような
磁性粉としては、磁性を示すか磁化可能な材料であれは
よく、例えば麩。In order to use the toner of the present invention as a magnetic toner, it is sufficient to contain magnetic powder in the core or outer shell, and such magnetic powder may be any material that exhibits magnetism or can be magnetized, such as wheat flour. .
マンガン、ニッケル、コバルト、クロムナトの金属、マ
グネタイト、ヘマタイト、各種フェライト、マンガン合
金、その他の強磁性合金などがあり、これらを平均粒径
約005〜5μ(より好ましくは01〜2μ)の微粉末
としたものが使用できる。トナー中に含有させる磁性微
粒子の量は、トナー総重量の15〜70重量%(より好
ましくは25〜50重量%)が良い。このような磁性粉
を含有せしめたカプセルトナーは磁気的潜像を現像した
後に高周波加熱定着する1棉に好適に用いられる。こわ
らの磁性粉は芯物質、殻物質のいずれに添加してもよい
が、絶縁性トナーを得る場合には芯物質に添加するのが
好ましい。These include manganese, nickel, cobalt, chromato metals, magnetite, hematite, various ferrites, manganese alloys, and other ferromagnetic alloys. You can use the one you made. The amount of magnetic fine particles contained in the toner is preferably 15 to 70% by weight (more preferably 25 to 50% by weight) of the total weight of the toner. Capsule toner containing such magnetic powder is suitably used for developing a magnetic latent image and then fixing it by high frequency heating. The stiff magnetic powder may be added to either the core material or the shell material, but when obtaining an insulating toner, it is preferably added to the core material.
庫発明のカプセルトナーを製造する方法は種々の公知の
カプセル化技術を利用することができる。例えば、スプ
レードライ法、界面重合法、コアセルベーション法、相
分離法、in 5jtu重合法、静電的合体法など米
国特許第3,338,991号明細書、同第3,326
,848号明細書、同第3,502.582号明細書な
どに記載されている方法などが使用できる。The method for producing the capsule toner of the invention can utilize various known encapsulation techniques. For example, spray drying method, interfacial polymerization method, coacervation method, phase separation method, in 5jtu polymerization method, electrostatic coalescence method, etc. US Pat. No. 3,338,991, US Pat. No. 3,326
, No. 848, No. 3,502.582, etc. can be used.
第1図はマイクロ波を利用した高周波定着装置の1例を
示す斜視図である。第1図において5はマイクロ波発振
器、6は同軸ケーブルで中心の軸と外円筒部に導体、を
有しており、マイクロ波発振器5からのマイクロ波を板
状の誘電体12の一側面」二の導体7,8.9に伝送す
る。FIG. 1 is a perspective view showing an example of a high frequency fixing device using microwaves. In FIG. 1, 5 is a microwave oscillator, 6 is a coaxial cable, which has a central shaft and a conductor on the outer cylindrical part, and the microwave from the microwave oscillator 5 is transmitted to one side of a plate-shaped dielectric 12. It is transmitted to the second conductor 7, 8.9.
ここで導体9は、同軸ケーブルの中心軸と連結されて固
体のM%体12の長手方向(マイクロ波発振器5の存在
する側とこれと反動側のマイクロ波吸収体10が存在す
る側を結ぶ方向)に進み、次にこの長手方向に対して直
角な方向にわずか進み、さらに先の長手方向を逆にマイ
クロ波発振器5側にもどりさらに折り返してマイクロ波
吸収体10にまで及んでいる。又導体7と導体8とはコ
の字形に形成され、導体9の周辺に互いに平行且つ近接
配置されている。そして吸収体10はアース11がなさ
れている。Here, the conductor 9 is connected to the central axis of the coaxial cable and connects the solid M% body 12 in the longitudinal direction (the side where the microwave oscillator 5 is present and the side where the microwave absorber 10 on the reaction side is present). direction), then slightly in a direction perpendicular to this longitudinal direction, then reverse the longitudinal direction, return to the microwave oscillator 5 side, and then turn back to reach the microwave absorber 10. Further, the conductor 7 and the conductor 8 are formed in a U-shape and are arranged parallel to and close to each other around the conductor 9. The absorber 10 is grounded 11.
(このアースは吸収体でなく同軸ケーブルに設けてもよ
い。)
このような構成をとると、導体9と導体7゜8との間に
おいて電界集中が生じマイクロ波の集中領域が導体9と
導体7,8とのなす平面に均一に生じることになり、矢
印a方向に顕画像を支持する記録材が搬送されるとマイ
クロ波エネルギーが均一に与えられるので定着ムラのな
い優れた定着がなされる。(This ground may be provided on the coaxial cable instead of the absorber.) With this configuration, electric field concentration occurs between the conductor 9 and the conductor 7°8, and the microwave concentration area is between the conductor 9 and the conductor 7. 7 and 8, and when the recording material supporting the microscope image is conveyed in the direction of arrow a, microwave energy is uniformly applied, resulting in excellent fixing without uneven fixing. .
潜像を本発明のトナーを用いて現像するには、罰述の磁
気ブラシ法、カスケード現像法、粉末雲法、米国特許第
3,909,258号明細書に記載されている導電性の
磁性トナーを用いる方法、特開昭54−42141号、
同55−18656号に記載されている絶縁性磁性トナ
ーを用いる方法、特開昭53−31136号公報に記載
されている高抵抗の磁性トナーを用いる方法などが用い
られる。The latent image can be developed using the toner of the present invention using the magnetic brush method described above, the cascade development method, the powder cloud method, or the conductive magnetic method described in U.S. Pat. No. 3,909,258. Method using toner, JP-A-54-42141,
A method using an insulating magnetic toner described in JP-A No. 55-18656, a method using a high-resistance magnetic toner described in JP-A-53-31136, and the like are used.
以下実施例を以って詳述する。This will be described in detail below with reference to Examples.
r実施例1〕
既製の静電的体法装置において、芯物質とするグリセリ
ン(Ttn=−17℃)に黒色着色剤を含有させたもの
を←)に、壁材とするジブチルフタレートを←)に荷電
させた。グリセリンは3〜10μの大きさに、DBPは
5〜20μの大きさに@霧化させ、その時に各アトマイ
ザ−にIon の電圧をかけたところ、芯が7〜10
μ、壁厚が1〜3μのカプセル粒子を得た。r Example 1] In a ready-made electrostatic body measurement device, glycerin (Ttn=-17°C) as a core material containing a black coloring agent is used as a core material, and dibutyl phthalate as a wall material is used as a wall material. charged. Glycerin was atomized to a size of 3 to 10μ and DBP was atomized to a size of 5 to 20μ.At that time, when a voltage of Ion was applied to each atomizer, the core was 7 to 10μ.
Capsule particles with a wall thickness of 1 to 3 μ were obtained.
この顕画剤を画出し後、第1図に示す定着器で定着した
ところ良好な定着性が得られた。After forming an image using this developer, the image was fixed using a fixing device shown in FIG. 1, and good fixing properties were obtained.
又、グリセリンは融点が17℃であり一般の粉砕法等で
はトナー化出来なかったが本顕画剤は50°Cの環境下
に2日放置しても何ら変化を生じなかった。Furthermore, glycerin has a melting point of 17°C and could not be made into a toner by a general pulverization method, but this developing agent showed no change even after being left in an environment of 50°C for 2 days.
〔実施例2〕
上記混合物をロールミルを用いて約120℃で30分混
練した後、ジエン2ルを用いてフィーダーに液体窒素を
供給しなから粒径5〜20μの粒子仏)を得て次の溶液
に分散させた。[Example 2] After kneading the above mixture at about 120°C for 30 minutes using a roll mill, liquid nitrogen was supplied to a feeder using diene 2 to obtain particles with a particle size of 5 to 20μ. It was dispersed in a solution of
この分散液を、熱風人口温度100℃、排風出口湿度3
0℃の条件でスプレードライヤーを用いて粒径約10〜
30μのカプセルトナー(B)を得た。This dispersion was heated with hot air at a population temperature of 100°C and an exhaust outlet humidity of 3.
Using a spray dryer at 0°C, the particle size is approximately 10~
A 30μ capsule toner (B) was obtained.
この顕−剤を画出し後、第1図に示す定着器で定着した
ところ、良好な定着性が得られた。After forming an image using this developer, the image was fixed using a fixing device shown in FIG. 1, and good fixing properties were obtained.
又上記粒子(トナー’) (A)と、カプセルトナー(
B)を50℃の環境下に3日放置したところ粒子(A)
はブロッキングを生じたのに対し、カプセルトナー(B
)は何ら変化を生じなかった。In addition, the above particles (toner') (A) and capsule toner (
When B) was left in an environment of 50°C for 3 days, particles (A)
The capsule toner (B) caused blocking, while the capsule toner (B
) did not cause any change.
第1図は、マイクロ波を利用した高周波定着装置ltの
1例の斜視図。
5・・・・・・マイクロ波発JifA ’IA。
7.8.9・・・・・・橋体。
10・・・・・・マイクロ波吸収体。
12・・・・・誘電体。
出願人 キャノン株式会社FIG. 1 is a perspective view of an example of a high frequency fixing device lt that uses microwaves. 5...Microwave emission JifA 'IA. 7.8.9...Bridge body. 10...Microwave absorber. 12...Dielectric material. Applicant Canon Co., Ltd.
Claims (1)
側内部に含むことを特徴とする高周波定着用顕画剤。A developing agent for high-frequency fixing, characterized in that the developing side contains a substance having a lower melting point than the substance forming the developing side surface layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56188185A JPS5888763A (en) | 1981-11-24 | 1981-11-24 | Image developer for high frequency fixing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56188185A JPS5888763A (en) | 1981-11-24 | 1981-11-24 | Image developer for high frequency fixing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5888763A true JPS5888763A (en) | 1983-05-26 |
Family
ID=16219248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56188185A Pending JPS5888763A (en) | 1981-11-24 | 1981-11-24 | Image developer for high frequency fixing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5888763A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5716751A (en) * | 1996-04-01 | 1998-02-10 | Xerox Corporation | Toner particle comminution and surface treatment processes |
US7145422B2 (en) | 2003-02-21 | 2006-12-05 | Sumitomo Electric Industries, Ltd. | DC relay |
-
1981
- 1981-11-24 JP JP56188185A patent/JPS5888763A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5716751A (en) * | 1996-04-01 | 1998-02-10 | Xerox Corporation | Toner particle comminution and surface treatment processes |
US7145422B2 (en) | 2003-02-21 | 2006-12-05 | Sumitomo Electric Industries, Ltd. | DC relay |
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