JPH06282105A - Production of electrostatic charge image developing toner particle - Google Patents
Production of electrostatic charge image developing toner particleInfo
- Publication number
- JPH06282105A JPH06282105A JP5091846A JP9184693A JPH06282105A JP H06282105 A JPH06282105 A JP H06282105A JP 5091846 A JP5091846 A JP 5091846A JP 9184693 A JP9184693 A JP 9184693A JP H06282105 A JPH06282105 A JP H06282105A
- Authority
- JP
- Japan
- Prior art keywords
- particles
- colored resin
- electrostatic charge
- pigment
- charge image
- 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
Landscapes
- Developing Agents For Electrophotography (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、静電荷像現像用トナー
粒子の製造方法に関し、さらに詳しくは、着色樹脂粒子
からなる静電荷像現像用トナー粒子の製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing toner particles for developing an electrostatic charge image, and more particularly to a method for producing toner particles for developing an electrostatic charge image comprising colored resin particles.
【０００２】[0002]
【従来の技術】従来、一般的に用いられているトナー用
着色粒子は、樹脂粉末に着色剤や任意の帯電制御剤をド
ライブレンド後、混練、粉砕、分級により製造されてい
た。しかしながら、このような方法で得られたトナー用
着色粒子は、流動性の良好な小粒径粒子として収率よく
得ることが困難であり、製造コストも増大するという問
題があった。この方法に対して、近年、懸濁重合法によ
るもの（特開昭５７−５３７５６号公報）、懸濁重合粒
子と着色剤粒子を混合凝集させて行なうもの（特開昭６
３−１８６２５３号公報）、乳化重合粒子と着色剤粒子
を分散凝固させて行なうもの（特開平２−６１６５０号
公報）および着色重合体粒子同士、さらには着色重合体
粒子と着色されていない重合体粒子を凝集させて行なう
もの（特開平４−５１２５１号公報）等、湿式法による
着色粒子の製造方法が多数提案されている。しかしなが
ら、これらの方法においても、顔料を均一に分散させる
ことが困難であり、鮮明な画像を得ることが難しく、な
おかつ粒子の小径化による流動性の悪化が問題となって
いる。2. Description of the Related Art Conventionally, generally used colored particles for toner have been manufactured by dry blending a colorant and an arbitrary charge control agent with a resin powder, followed by kneading, pulverizing and classifying. However, the colored particles for toner obtained by such a method have a problem that it is difficult to obtain small particle diameter particles having good fluidity in a high yield, and the manufacturing cost also increases. In contrast to this method, a suspension polymerization method (JP-A-57-53756) or a method in which suspension-polymerized particles and colorant particles are mixed and agglomerated (JP-A-6-56)
3-186253), a method in which emulsion-polymerized particles and colorant particles are dispersed and solidified (JP-A-2-61650), colored polymer particles themselves, and further colored polymer particles and uncolored polymer. Many methods for producing colored particles by a wet method have been proposed, such as one in which particles are aggregated (JP-A-4-51251). However, even in these methods, it is difficult to uniformly disperse the pigment, it is difficult to obtain a clear image, and there is a problem that the fluidity is deteriorated due to the particle size reduction.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、従来技術の
上記のような実情に鑑みてなされたものである。すなわ
ち、本発明の目的は、流動性が良好で、顔料粒子が均一
に分散しており、かつ、均一な帯電性を持つ着色樹脂粒
子を得ることができ、静電荷像現像用トナーとして使用
した場合、画質が鮮明な複写画像を得ることができる静
電荷像現像用トナー粒子の製造方法を提供することにあ
る。また、本発明の他の目的は、製造コストを低減でき
る静電荷像現像用トナー粒子の製造方法を提供すること
にある。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned actual situation of the prior art. That is, the object of the present invention is to obtain colored resin particles having good fluidity, uniformly dispersed pigment particles, and uniform chargeability, and used as a toner for electrostatic image development. In this case, it is an object of the present invention to provide a method for producing toner particles for developing an electrostatic charge image capable of obtaining a copied image with clear image quality. Another object of the present invention is to provide a method of manufacturing toner particles for electrostatic image development which can reduce manufacturing costs.
【０００４】[0004]
【課題を解決するための手段】本発明者等は、鋭意検討
を重ねた結果、少なくとも顔料を含有する樹脂微粒子を
水性溶媒に分散させてなる着色樹脂分散液に、無機酸化
物微粒子を添加し、着色樹脂粒子を凝集させた後、着色
樹脂粒子の凝集体を加熱し、融着することにより、上記
目的を達成することができることを見いだし、本発明を
完成するに至った。すなわち、本発明の製造方法は、静
電荷像現像用トナー粒子の製造方法であって、少なくと
も顔料を含有する樹脂微粒子を水性溶媒に分散させてな
る着色樹脂分散液に無機酸化物微粒子を添加し、着色樹
脂粒子を凝集させた後、着色樹脂分散液を加熱し、凝集
した着色樹脂粒子を融着して、会合体粒子を形成するこ
とを特徴とする。As a result of intensive studies, the present inventors have added inorganic oxide fine particles to a colored resin dispersion liquid in which resin fine particles containing at least a pigment are dispersed in an aqueous solvent. It was found that the above object can be achieved by aggregating the colored resin particles and then heating and fusing the agglomerates of the colored resin particles, thus completing the present invention. That is, the production method of the present invention is a method for producing toner particles for electrostatic image development, in which inorganic oxide fine particles are added to a colored resin dispersion liquid in which resin fine particles containing at least a pigment are dispersed in an aqueous solvent. After aggregating the colored resin particles, the colored resin dispersion is heated to fuse the aggregated colored resin particles to form associated particles.
【０００５】以下、本発明を詳細に説明する。本発明に
おいて、原料の樹脂としては、公知のスチレン樹脂、ア
クリル樹脂、ポリエステル樹脂等の重合体、および共重
合体が用いられるが、特に、ポリエステル樹脂、中でも
エーテル化ビスフェノールＡ、あるいはグリコール類等
とテレフタル酸、フマル酸、マレイン酸等の二塩基酸と
の共縮合で得られるポリエステル類およびトリメリット
酸等を含めた共重合体であるもので、ガラス移転点（Ｔ
ｇ）−１０〜８０℃のものが好ましく使用される。The present invention will be described in detail below. In the present invention, as the raw material resin, known polymers such as styrene resin, acrylic resin, polyester resin, and copolymers are used, and particularly, polyester resin, particularly etherified bisphenol A, glycols or the like is used. Polyesters obtained by cocondensation with dibasic acids such as terephthalic acid, fumaric acid and maleic acid, and copolymers including trimellitic acid and the like, which have a glass transition point (T
g) Those having a temperature of −10 to 80 ° C. are preferably used.
【０００６】また、顔料としては、例えば、カーボンブ
ラック、アニリンブルー、フタロシアニンブルー、ピグ
メントレッド１２２、クロムイエロー等、トナーに用い
られる公知の顔料が使用される。As the pigment, for example, known pigments used for toners such as carbon black, aniline blue, phthalocyanine blue, pigment red 122, and chrome yellow are used.
【０００７】本発明において、上記着色樹脂分散液は、
次のようにして調製される。すなわち、予め上記顔料を
有機溶媒中に分散剤により分散させた顔料分散液に、有
機溶媒中に上記樹脂を溶解した樹脂溶液を添加混合し
て、油性分散液となし、この油性分散液を乳化剤を含む
水性溶媒に加え、乳化させ、次に、生成したエマルジョ
ンから有機溶媒を除去することにより調製される。該着
色樹脂分散液中に分散される着色樹脂一次微粒子の粒径
は、平均粒径１０μｍ以下、好ましくは０．１〜１０μ
ｍであり、最も好ましくは、０．１〜５μｍである。In the present invention, the above colored resin dispersion is
It is prepared as follows. That is, a pigment dispersion prepared by previously dispersing the above pigment in an organic solvent with a dispersant is mixed with a resin solution prepared by dissolving the above resin in an organic solvent to form an oily dispersion, and this oily dispersion is an emulsifier. Prepared by adding to an aqueous solvent containing, emulsifying, and then removing the organic solvent from the resulting emulsion. The particle size of the colored resin primary fine particles dispersed in the colored resin dispersion liquid is 10 μm or less in average particle size, preferably 0.1 to 10 μm.
m, and most preferably 0.1 to 5 μm.
【０００８】この際、顔料を分散し、また、樹脂を溶解
する有機溶媒としては、酢酸メチル、酢酸エチル等のエ
ステル類、脂肪族炭化水素あるいは脂肪族炭化水素を主
成分とする有機溶媒が好ましく使用することができる。
また、顔料の使用量は、樹脂に対して、０．１〜１０重
量％、好ましくは、０．５〜５重量％の範囲である。顔
料を分散するための分散剤としては、ノニオン系界面活
性剤、アニオン系界面活性剤、カチオン系界面活性剤等
公知の分散剤であるならばすべて使用でき、その使用量
は、樹脂に対して０．５〜１０重量％、好ましくは１〜
１０重量％の範囲である。また、乳化剤としては、乳化
剤として既に公知のものが使用でき、例えば、水溶性高
分子化合物、アニオン系界面活性剤、ノニオン系界面活
性剤などがあげられ、その使用量は、樹脂に対して、
０．１〜１０重量％、好ましくは、０．１〜５重量％の
範囲である。At this time, as the organic solvent in which the pigment is dispersed and the resin is dissolved, esters such as methyl acetate and ethyl acetate, an aliphatic hydrocarbon or an organic solvent containing an aliphatic hydrocarbon as a main component is preferable. Can be used.
The amount of the pigment used is 0.1 to 10% by weight, preferably 0.5 to 5% by weight, based on the resin. As the dispersant for dispersing the pigment, all known dispersants such as nonionic surfactants, anionic surfactants, and cationic surfactants can be used. 0.5 to 10% by weight, preferably 1 to
It is in the range of 10% by weight. Further, as the emulsifier, those that are already known as emulsifiers can be used, and examples thereof include water-soluble polymer compounds, anionic surfactants, nonionic surfactants, and the like.
It is in the range of 0.1 to 10% by weight, preferably 0.1 to 5% by weight.
【０００９】本発明方法によれば静電荷像現像用トナー
粒子は、上記のようにして得られた着色樹脂分散液に無
機酸化物微粒子を添加し、着色樹脂粒子を凝集させた
後、着色樹脂分散液を加熱して、平均粒径２〜１２μｍ
の凝集体を融着し、会合体粒子を形成させることにより
製造することができる。その際、添加する無機酸化物微
粒子としては、酸化ケイ素、酸化チタン、酸化アルミニ
ウムがあげられるが、それらは、公知のものであるなら
ば如何なる形態を取ってもよく、例えば、粒径は、０．
０１〜１μｍ、好ましくは０．０１〜０．１μｍのもの
が使用される。着色樹脂粒子の凝集体を加熱融着する温
度は、樹脂のガラス移転点より１０〜５０℃、特に１０
〜３０℃高く設定することが好ましい。加熱融着によっ
て得られた会合体粒子の平均粒径は、２〜１０μｍ、好
ましくは、３〜８μｍである。以上のようにして得た会
合体粒子よりなる静電荷像現像用トナー粒子は、流動
性、帯電性付与のために公知の微粒子を単独または併用
して用いることにより、熱定着用のトナーとして使用す
ることができる。According to the method of the present invention, the toner particles for developing an electrostatic charge image are prepared by adding inorganic oxide fine particles to the colored resin dispersion liquid obtained as described above to aggregate the colored resin particles, and then the colored resin. The dispersion is heated to have an average particle size of 2 to 12 μm.
It can be produced by fusing the agglomerates of (1) and forming aggregate particles. At that time, as the inorganic oxide fine particles to be added, silicon oxide, titanium oxide, and aluminum oxide may be mentioned, but they may take any form as long as they are publicly known, and for example, the particle size is 0. ．
Those having a diameter of 01 to 1 μm, preferably 0.01 to 0.1 μm are used. The temperature at which the aggregate of colored resin particles is heat-fused is 10 to 50 ° C., especially 10 ° C., from the glass transition point of the resin.
It is preferable to set the temperature higher by 30 ° C. The average particle size of the aggregate particles obtained by heat fusion is 2 to 10 μm, preferably 3 to 8 μm. The toner particles for electrostatic image development comprising the aggregate particles obtained as described above are used as a toner for heat fixing by using known fine particles alone or in combination for imparting fluidity and chargeability. can do.
【００１０】[0010]
【作用】本発明は、無機酸化物微粒子を用いて、顔料を
含有する着色樹脂一次粒子を凝集させ、加熱融着させて
会合体粒子としトナー粒子を得るものである。したがっ
て、本発明により製造されたトナー粒子は、トナー粒子
表面に無機酸化物微粒子が均一に付着しているために、
トナーの流動性が良好となり、かつ顔料を含有する着色
樹脂一次粒子を凝集させているために、顔料がトナー粒
子中に均一に分散している。また、トナー粒子間に材料
の偏りがないために、本発明により製造されたトナー粒
子を用いた場合、帯電性が均一で、かつ耐久性の良好な
電子写真現像用トナーが得られる。According to the present invention, the primary particles of the colored resin containing the pigment are aggregated by using the inorganic oxide fine particles, and the particles are heated and fused to obtain the associated particles to obtain the toner particles. Therefore, the toner particles produced according to the present invention, because the inorganic oxide fine particles are uniformly attached to the surface of the toner particles,
Since the toner has good fluidity and the colored resin primary particles containing the pigment are aggregated, the pigment is uniformly dispersed in the toner particles. In addition, since there is no unevenness of material among the toner particles, when the toner particles manufactured according to the present invention are used, an electrophotographic developing toner having uniform chargeability and good durability can be obtained.
【００１１】[0011]
【実施例】以下、実施例および比較例により本発明を具
体的に説明する。なお、実施例および比較例において、
「部」は「重量部」を意味する。EXAMPLES The present invention will be specifically described below with reference to Examples and Comparative Examples. In the examples and comparative examples,
"Parts" means "parts by weight".
【００１２】実施例１ 顔料分散液の調製 カーボンブラック（＃２５） ２部 ポリエステル樹脂 ２部 （酸化価２．７、ＯＨ価３４．８、Ｔｇ５０℃） 酢酸エチル ２００部 顔料分散剤 ソルスパース ５，０００ ０．１部 ソルスパース ２４，０００ ０．４部 上記成分からなる混合液をサンドミルで１時間撹拌し
て、顔料を分散した。得られた分散液にメチルシリルト
リイソシアネート（オルガチックスＳ１３１０松本製薬
工業製）３部を添加し、室温で１時間撹拌を行ない顔料
分散液を得た。Example 1 Preparation of Pigment Dispersion Carbon black (# 25) 2 parts Polyester resin 2 parts (Oxidation value 2.7, OH value 34.8, Tg 50 ° C.) Ethyl acetate 200 parts Pigment dispersant Solspers 5,000 0.1 part Solsperse 24,000 0.4 part The liquid mixture containing the above components was stirred for 1 hour with a sand mill to disperse the pigment. To the resulting dispersion, 3 parts of methylsilyltriisocyanate (Organix S1310 manufactured by Matsumoto Pharmaceutical Co., Ltd.) was added, and the mixture was stirred at room temperature for 1 hour to obtain a pigment dispersion.
【００１３】着色樹脂一次粒子の製造 上記顔料分散液２０部を取り、この分散液にポリエステ
ル樹脂（酸化価１．３、ＯＨ価２６．８、Ｔｇ５３．６
℃）１０部と酢酸エチル１０部を加えて溶解させ、油性
分散液を得た。ポリビニルアルコール０．１重量％の水
溶液８０部に前記油性分散液４０部を加え、乳化分散し
てエマルジョンとし、５０℃の恒温槽にて１時間５００
〜１，０００回転で撹拌し、有機溶媒を除去し、平均粒
径０．５〜１．５μｍの着色樹脂一次粒子を含む着色樹
脂分散液を得た。Production of Colored Resin Primary Particles 20 parts of the above pigment dispersion was taken, and a polyester resin (oxidation value 1.3, OH value 26.8, Tg 53.6) was added to the dispersion.
(° C) and 10 parts of ethyl acetate were added and dissolved to obtain an oily dispersion. 40 parts of the oily dispersion was added to 80 parts of an aqueous solution of 0.1% by weight of polyvinyl alcohol, and the mixture was emulsified and dispersed to form an emulsion.
The organic solvent was removed by stirring at ˜1,000 rpm to obtain a colored resin dispersion liquid containing colored resin primary particles having an average particle size of 0.5 to 1.5 μm.
【００１４】静電荷像現像用トナー粒子の製造 上記の着色樹脂一次粒子を含む着色樹脂分散液９０部に
酸化ケイ素（日本アエロジルＮＯ．１３０、０．０１６
μｍ）１．１部を加え４０℃の恒温槽にて１時間５００
〜１，０００回転で撹拌した。光学顕微鏡で粒子を観察
したところ、着色樹脂一次粒子が凝集を起こして、粒径
が約１０μｍになっていることが確認された。その後、
７０℃に恒温槽の内温を上昇させ、１時間５００〜１，
０００回転で撹拌し、凝集粒子を融着させ、冷却して会
合体粒子を含む液状分散物を得た。次に、この液状分散
物をブフナーロートで吸引濾過し、水洗した後、３０℃
で真空乾燥を１０時間行ない、平均粒径６μｍの不定形
を有する静電荷像現像用トナー粒子を得た。Preparation of Toner Particles for Developing an Electrostatic Image In 90 parts of a colored resin dispersion containing the above-mentioned colored resin primary particles, silicon oxide (Japan Aerosil No. 130, 0.016) is added.
μm) 1.1 parts were added and the temperature was kept at 40 ° C in a constant temperature bath for 1 hour 500
Stir at ~ 1,000 revolutions. When the particles were observed with an optical microscope, it was confirmed that the primary particles of the colored resin agglomerated and the particle size was about 10 μm. afterwards,
Raise the internal temperature of the constant temperature bath to 70 ° C and increase the internal temperature of 500-1,
The liquid was stirred at 000 rpm to fuse the aggregated particles and cooled to obtain a liquid dispersion containing aggregated particles. Next, this liquid dispersion is suction filtered with a Buchner funnel, washed with water, and then at 30 ° C.
Vacuum drying was carried out for 10 hours to obtain toner particles for developing an electrostatic charge image having an irregular shape having an average particle diameter of 6 μm.
【００１５】実施例２ 実施例１と同様にして着色樹脂一次粒子を含む着色樹脂
分散液を調製し、この着色樹脂分散液９０部に酸化チタ
ン（出光興産ＩＴ−Ｓ、０．０２μｍ）１．１部を加
え、実施例１と同様の操作を行ない、凝集体を得た。こ
の凝集体の平均粒径は１２μｍになったことが確認され
た。この後、恒温槽の内温を７０℃に上昇させ、実施例
１と同様の操作を行ったところ、平均粒径８μｍの静電
荷像現像用トナー粒子が得られた。Example 2 A colored resin dispersion containing colored resin primary particles was prepared in the same manner as in Example 1, and 90 parts of this colored resin dispersion was mixed with titanium oxide (Idemitsu Kosan IT-S, 0.02 μm) 1. 1 part was added and the same operation as in Example 1 was performed to obtain an aggregate. It was confirmed that the average particle size of this aggregate was 12 μm. Then, the internal temperature of the constant temperature bath was raised to 70 ° C. and the same operation as in Example 1 was carried out to obtain toner particles for developing an electrostatic charge image having an average particle diameter of 8 μm.
【００１６】実施例３ 実施例１と同様にして着色樹脂一次粒子を含む着色樹脂
分散液を調製し、この着色樹脂分散液９０部に酸化アル
ミニウム（日本アエロジル、ＡＯＣ、０．０３μｍ）
１．１部を加え、実施例１と同様の操作を行ない、凝集
体を得た。この凝集体の平均粒径は８μｍになったこと
が確認された。この後、恒温槽の内温を６０℃に上昇さ
せ、実施例１と同様の操作を行ったところ、平均粒径６
μｍの静電荷像現像用トナー粒子が得られた。Example 3 A colored resin dispersion containing colored resin primary particles was prepared in the same manner as in Example 1, and 90 parts of this colored resin dispersion was mixed with aluminum oxide (Japan Aerosil, AOC, 0.03 μm).
1.1 parts was added and the same operation as in Example 1 was performed to obtain an aggregate. It was confirmed that the average particle size of this aggregate was 8 μm. Then, the internal temperature of the constant temperature bath was raised to 60 ° C., and the same operation as in Example 1 was performed.
The toner particles for developing an electrostatic image having a size of μm were obtained.
【００１７】評価 実施例１〜３で得られた静電荷像現像用トナー粒子に、
それぞれ疎水性シリカを３重量％外添して混合し、電子
写真用トナーを得た。これらのトナーにキャリアと混合
し、電子写真複写機（富士ゼロックス社製５０３０改造
機）に供給して複写テストを行なったところ、色調の鮮
明な良好な画像を得ることができた。Evaluation The toner particles for developing an electrostatic charge image obtained in Examples 1 to 3 were
3% by weight of hydrophobic silica was externally added and mixed to obtain an electrophotographic toner. When these toners were mixed with a carrier and supplied to an electrophotographic copying machine (5030 remodeling machine manufactured by Fuji Xerox Co., Ltd.) to perform a copying test, a good image with clear color tone could be obtained.
【００１８】比較例１ 着色剤を含まないポリエステル着色樹脂分散液を調製
し、ｐＨを５〜６に調整した後、該着色樹脂分散液と実
施例１において得られた着色樹脂一次粒子を混合、撹拌
して、ｐＨを７とした後、温度を６０℃に加温し、凝集
融着を行ない、静電荷像現像用トナー粒子を得た。この
ものを実施例１と同様の外添処理を行ない、複写テスト
を行なったが、色調が不鮮明で良好な画像を得ることが
できなかった。Comparative Example 1 A polyester colored resin dispersion liquid containing no colorant was prepared, and after adjusting the pH to 5 to 6, the colored resin dispersion liquid was mixed with the colored resin primary particles obtained in Example 1, After stirring to adjust the pH to 7, the temperature was heated to 60 ° C. to perform cohesive fusion to obtain toner particles for electrostatic image development. This was subjected to the same external addition treatment as in Example 1 and a copy test was conducted, but the color tone was unclear and a good image could not be obtained.
【００１９】比較例２ 実施例１において、無機酸化物微粒子を用いず、同様の
操作を行なったが、粒子の粒径は極めて大きくなり、こ
のものに外添処理を行ない、複写テストを行ったが、良
好な画像は得られなかった。Comparative Example 2 The same operation as in Example 1 was carried out without using the inorganic oxide fine particles, but the particle diameter of the particles became extremely large, and this was subjected to an external addition treatment and subjected to a copy test. However, a good image was not obtained.
【００２０】[0020]
【発明の効果】本発明は、上記構成を有するので、得ら
れた静電荷像現像用トナー粒子は、顔料の分散性が良
く、またトナーとして用いた場合、流動性が良好で、帯
電性が均一であり、かつ鮮明な画像が得られる。また、
本発明によれば、静電荷像現像用トナー粒子を安価に製
造することができる。EFFECT OF THE INVENTION Since the present invention has the above-mentioned constitution, the obtained toner particles for electrostatic image development have good pigment dispersibility, and when used as a toner, have good fluidity and chargeability. A uniform and clear image can be obtained. Also,
According to the present invention, the toner particles for electrostatic image development can be manufactured at low cost.
Claims (1)
水性溶媒に分散させてなる着色樹脂分散液に無機酸化物
微粒子を添加し、着色樹脂粒子を凝集させた後、着色樹
脂分散液を加熱し、凝集した着色樹脂粒子を融着して、
会合体粒子を形成することを特徴とする静電荷像現像用
トナー粒子の製造方法。1. An inorganic oxide fine particle is added to a colored resin dispersion liquid in which resin fine particles containing at least a pigment are dispersed in an aqueous solvent to aggregate the colored resin particles, and then the colored resin dispersion liquid is heated, Fusing the aggregated colored resin particles,
A method for producing toner particles for electrostatic image development, which comprises forming aggregate particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5091846A JPH06282105A (en) | 1993-03-29 | 1993-03-29 | Production of electrostatic charge image developing toner particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5091846A JPH06282105A (en) | 1993-03-29 | 1993-03-29 | Production of electrostatic charge image developing toner particle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06282105A true JPH06282105A (en) | 1994-10-07 |
Family
ID=14037944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5091846A Pending JPH06282105A (en) | 1993-03-29 | 1993-03-29 | Production of electrostatic charge image developing toner particle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06282105A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10319624A (en) * | 1997-05-19 | 1998-12-04 | Fuji Xerox Co Ltd | Electrostatic charge image developing toner, its production, electrostatic charge image developer and image forming method |
| US6153346A (en) * | 1998-02-27 | 2000-11-28 | Fuji Xerox Co., Ltd. | Electrostatic image developing toner, process for the production thereof, electrostatic image developer and process for the formation of image |
| US7741002B2 (en) | 2005-11-11 | 2010-06-22 | Ricoh Company, Ltd. | Toner, toner production method, and image forming method |
| US7879523B2 (en) | 2001-04-02 | 2011-02-01 | Ricoh Company Limited | Toner composition and method for manufacturing the toner composition |
-
1993
- 1993-03-29 JP JP5091846A patent/JPH06282105A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10319624A (en) * | 1997-05-19 | 1998-12-04 | Fuji Xerox Co Ltd | Electrostatic charge image developing toner, its production, electrostatic charge image developer and image forming method |
| US6153346A (en) * | 1998-02-27 | 2000-11-28 | Fuji Xerox Co., Ltd. | Electrostatic image developing toner, process for the production thereof, electrostatic image developer and process for the formation of image |
| US7879523B2 (en) | 2001-04-02 | 2011-02-01 | Ricoh Company Limited | Toner composition and method for manufacturing the toner composition |
| US8187784B2 (en) | 2001-04-02 | 2012-05-29 | Ricoh Company Limited | Toner composition and method for manufacturing the toner composition |
| US7741002B2 (en) | 2005-11-11 | 2010-06-22 | Ricoh Company, Ltd. | Toner, toner production method, and image forming method |
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