JPS60213961A - Carrier for electrostatic charge development - Google Patents
Carrier for electrostatic charge developmentInfo
- Publication number
- JPS60213961A JPS60213961A JP59069179A JP6917984A JPS60213961A JP S60213961 A JPS60213961 A JP S60213961A JP 59069179 A JP59069179 A JP 59069179A JP 6917984 A JP6917984 A JP 6917984A JP S60213961 A JPS60213961 A JP S60213961A
- Authority
- JP
- Japan
- Prior art keywords
- core material
- carrier
- coating
- coating layer
- electrifiability
- 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.)
- Granted
Links
- 239000011162 core material Substances 0.000 claims abstract description 24
- 239000011247 coating layer Substances 0.000 claims abstract description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 20
- 238000000576 coating method Methods 0.000 abstract description 20
- 239000000463 material Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 7
- 239000002966 varnish Substances 0.000 abstract description 7
- 229920001296 polysiloxane Polymers 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract description 2
- 125000005010 perfluoroalkyl group Chemical group 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 239000002245 particle Substances 0.000 description 8
- 239000000969 carrier Substances 0.000 description 6
- 108091008695 photoreceptors Proteins 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000007822 coupling agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- DBTDEFJAFBUGPP-UHFFFAOYSA-N Methanethial Chemical compound S=C DBTDEFJAFBUGPP-UHFFFAOYSA-N 0.000 description 1
- -1 MnZn 7 elite Inorganic materials 0.000 description 1
- 229910003962 NiZn Inorganic materials 0.000 description 1
- 229910018605 Ni—Zn Inorganic materials 0.000 description 1
- 150000001343 alkyl silanes Chemical class 0.000 description 1
- SOGAXMICEFXMKE-UHFFFAOYSA-N alpha-Methyl-n-butyl acrylate Natural products CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- CJPQIRJHIZUAQP-MRXNPFEDSA-N benalaxyl-M Chemical compound CC=1C=CC=C(C)C=1N([C@H](C)C(=O)OC)C(=O)CC1=CC=CC=C1 CJPQIRJHIZUAQP-MRXNPFEDSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229940090961 chromium dioxide Drugs 0.000 description 1
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 description 1
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000007771 core particle Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LAQFLZHBVPULPL-UHFFFAOYSA-N methyl(phenyl)silicon Chemical compound C[Si]C1=CC=CC=C1 LAQFLZHBVPULPL-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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
- G03G9/10—Developers with toner particles characterised by carrier particles
- G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
- G03G9/1132—Macromolecular components of coatings
- G03G9/1135—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/1136—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon atoms
-
- 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
- G03G9/10—Developers with toner particles characterised by carrier particles
- G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
- G03G9/1138—Non-macromolecular organic components of coatings
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電子写真法、静電記録法において静電潜像を現
像するための現像剤、特にキャリヤ粒子に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to developers, particularly carrier particles, for developing electrostatic latent images in electrophotography and electrostatography.
従来技術
磁子写真法あるいは静電記録法では、感光体あるいは静
電記録体に形成した静電潜像を磁気ブラシ法、カースケ
ート現像法等により現像してトナー像を形成し、このト
ナー像を紙等の転写材へ転写して複写物を得る。Conventional technology In magnetography or electrostatic recording, an electrostatic latent image formed on a photoreceptor or electrostatic recording medium is developed by a magnetic brush method, car skate development method, etc. to form a toner image. A copy is obtained by transferring the image to a transfer material such as paper.
この現像に際してトナーに所定の電荷を与えるのにキャ
リヤが使用される。A carrier is used to impart a predetermined charge to the toner during this development.
キャリヤは一般にコートヤヤリャと非コートキャリヤと
に大別され、帯電性の制御あるいはトナー付着の防止と
いった点から主にコートキャリヤが多く用いられている
。Carriers are generally classified into coated carriers and non-coated carriers, and coated carriers are mainly used from the viewpoint of controlling chargeability and preventing toner adhesion.
感光体として有機系の感光材料を用いる場合、多くは負
極性の静電潜像を形成するため、トナーに正電荷を与え
る様にキャリヤを負帯電性のものを用いる。この為ギヤ
リヤのコート材料を負帯電性のフッ素樹脂あるいはポリ
エステル樹脂を用いる提案が種々なされている。When an organic photosensitive material is used as a photoreceptor, in most cases a negative electrostatic latent image is formed, so a negatively charged carrier is used to impart a positive charge to the toner. For this reason, various proposals have been made to use negatively chargeable fluororesin or polyester resin as the coating material for the gear rear.
鉄粉等のコア材にフッ素樹脂を被覆したコートキャリヤ
は摩擦帯電性に優れるものの、コート材がはがれやすく
、これを防止する為被覆層を厚（すると電荷が蓄積して
画像４度が低下したり、又ソリッド部の再現性が劣下す
るものであった。またポリエステル樹脂を被覆したキャ
リヤはコート材のはがれは少なくなるものの、帯電性が
不十分なものであった。Coated carriers made of a core material such as iron powder coated with fluororesin have excellent triboelectrification properties, but the coating material tends to peel off, and to prevent this, the coating layer must be thick (which may cause charge to accumulate and reduce the image quality. Moreover, the reproducibility of the solid part was deteriorated.Furthermore, although the carrier coated with polyester resin had less peeling of the coating material, the charging property was insufficient.
発明の目的
本発明は従来のコートキャリヤの欠点を解消し、摩擦帯
電性に優れ、はがれの生しにくい負帯′祇性キャリヤを
提供することを目的とする。OBJECTS OF THE INVENTION An object of the present invention is to eliminate the drawbacks of conventional coated carriers, and to provide a negative-band-bearing carrier that has excellent triboelectric charging properties and is less likely to peel off.
発明の構成
本発明の目的は、コア材表面にシリコンフェス中−こ末
端パー７０ロアルキルゾランカツプリング剤を含有する
被覆層を形成したキャリヤにより達成することができる
。DESCRIPTION OF THE INVENTION The objects of the present invention can be achieved by a carrier in which a coating layer containing a par-70 alkylzolan coupling agent is formed on the surface of the core material.
本発明に用いるシリコンワニスは、シロキサン結合を有
する重合体であり、例えばメチルシリコンワニス、メチ
ルフェニルシリコンワニス等を挙げることができる。The silicone varnish used in the present invention is a polymer having a siloxane bond, and includes, for example, methyl silicone varnish, methylphenyl silicone varnish, and the like.
又末端パーフロロアルキルシランカップリング剤として
はＣＦｓ ＣＨ２ＣＨｔ Ｓ ｉ （ＯＣＨｓ ）ｓ
、ＣＦｓ （ＣＦＪｓＣＨ２ＣＨ２Ｓ ｉ （０ＣＨｓ
）ｓ ｓ ＣＦＢ （ＣＦＪ＠ ＣＨ２ＣＨ２Ｓ ｉ
（０ＣＨａ ）ｓ ｓ ＣＦ３ （ＣＦｚ ）７ ＣＨ
２ＣＨｌ ＣＨｔ Ｓ ｉ （ＯＣ２Ｈ５）ｓ、ＣＦ、
（ＣＦ、）。Ｃｏｏ （ＣＨｘ ）Ｂ Ｓ ｉ （０Ｃ
ＨＢ ）３ 、ＣＦｓ （ＣＦＪｓＣＯ５（ＣＨｚ ）
ｓ Ｓ ｌ （０ＣＨｓ）ｓ 、ＣＦｓ （ＣＦｔ）ａ
（ｉＯＮＨ（ＣＨ，）ｓＳｉ（ＯＣＨｓ）ｍ 、ＣＦ
ｓ（ＣＦｔ）ｓｓｏ、ＮＨ（ＣＨ，）ａＳｌ（ＱＣ！
ＩＩ ）Ｓ 、ＣＦ３ （ＣＦ２ ）？ ＣＨ２ＣＨｌ
５ＣＨＩ ＣＨ２Ｓ １（０ＣＨｓ）ｓ 、ＣＦｓ
（ＣＦ２）９ ＣＨ２ＣＨ２５ＣＨ２ＣＨｔＳ ｉ （
ＯＣＨｓ）ｓ 、を挙げることができる。In addition, as a terminal perfluoroalkylsilane coupling agent, CFs CH2CHt Si (OCHs)s
, CFs (CFJsCH2CH2S i (0CHs
)s s CFB (CFJ@CH2CH2S i
(0CHa)s s CF3 (CFz)7 CH
2CHl CHt S i (OC2H5)s, CF,
(CF,). Coo (CHx)B Si (0C
HB)3, CFs (CFJsCO5(CHz)
s S l (0CHs)s , CFs (CFt)a
(iONH(CH,)sSi(OCHs)m, CF
s(CFt)sso,NH(CH,)aSl(QC!
II) S, CF3 (CF2)? CH2CHl
5CHI CH2S 1(0CHs)s, CFs
(CF2)9 CH2CH25CH2CHtS i (
OCHs)s.
この７リコンワニスの不揮発物１屯量部に対ｔ、末端ハ
ーフ０ロアルキル７ランヲ０．００５〜１重量部を混合
した溶液をコート材心液としてキャリヤのコアに塗布す
る。A solution prepared by mixing 0.005 to 1 part by weight of terminal half-0-roalkyl 7-lane per 1 part by weight of the non-volatile substance of this 7 recon varnish is applied to the core of the carrier as a coating material core solution.
本発明に用いるコア材としては種々公知のものを用いる
ことができ、例えば四三酸化鉄、三二酸化鉄、ＭｎＺｎ
７エライト、ＮｉＺｎフェライト、Ｂａフェライト、
二酸化クロム、鉄、ニッケル、コバルト、ガラスピーズ
等の２０〜５００μｍ程度の粒径の粒子が挙げられる。Various known core materials can be used as the core material used in the present invention, such as triiron tetroxide, iron sesquioxide, MnZn
7 elite, NiZn ferrite, Ba ferrite,
Examples include particles having a particle size of about 20 to 500 μm such as chromium dioxide, iron, nickel, cobalt, and glass beads.
又、結着樹脂中に磁性粉を分散した粒子をコア材として
用いても良い。Alternatively, particles in which magnetic powder is dispersed in a binder resin may be used as the core material.
本発明のキャリヤ粒子は前述のコア材を前述のコート溶
液で表面処理し、コア材料表面上に化学結合あるいは吸
着等によりコート、ｔＶの被覆層を形成することにより
得ることができる。コア材の表面処理のためには、例え
ばコート材を溶解した溶液中にコア材を浸漬した後脱浴
媒、乾燥、史には高温処理する方法、あるいはコア材を
流動化床中で浮遊させコート材Ｍ液を噴霧塗布し乾凍、
史には高温処理する方法等を利用することができる。こ
れらの方法で高温処理は必ずしも必要でないが、密着性
を高める点から約１００〜２０００で処理するのが艮い
。The carrier particles of the present invention can be obtained by surface-treating the core material described above with the coating solution described above, and forming a coating layer of tV on the surface of the core material by chemical bonding or adsorption. For surface treatment of the core material, for example, the core material is immersed in a solution in which the coating material is dissolved, followed by debathing and drying, followed by high-temperature treatment, or by suspending the core material in a fluidized bed. Spray coat coating material M solution and dry.
For this purpose, a method of high temperature treatment can be used. Although high temperature treatment is not necessarily required in these methods, it is best to treat at a temperature of about 100 to 2,000 degrees Celsius in order to improve adhesion.
このコート材の破覆量はコア材料１００重責部に対し０
．００１〜５重縫部、電縫しくは０．Ｏ１〜２．５重量
部程度であるのが艮い。The amount of destruction of this coating material is 0 for 100 heavy parts of the core material.
．． 001 to 5 double stitched parts, electric sewing or 0. The content is approximately 1 to 2.5 parts by weight.
この本発明に係るキャリヤはトナーと混合して用いられ
る。トナーとしては種々公知のものが使用でき特に制限
されない。トナーはキャリヤ１００重量部に対し１〜２
０重量部重量部会される。The carrier according to the present invention is used in combination with a toner. Various known toners can be used and are not particularly limited. Toner: 1 to 2 parts by weight per 100 parts by weight of carrier
0 parts by weight.
このキャリヤとトナーとからなる現像剤は感光体あるい
は静電記録体に形成された静電潜像を現像するのに用い
られ、磁気ブラシ現像法、カスケード現像法等の種々の
現像法を適用できる。This developer consisting of carrier and toner is used to develop an electrostatic latent image formed on a photoreceptor or electrostatic recording medium, and various developing methods such as magnetic brush development and cascade development can be applied. .
発明の効果
コア材をシリコンフェス中に末端パーフロロ＼
アルキルシランカップリング剤を含有するコート材で被
覆した本発明のキャリヤは種々の優れた効果を有する。Effects of the Invention The carrier of the present invention, in which a core material is coated in a silicone face with a coating material containing a terminal perfluorinated alkylsilane coupling agent, has various excellent effects.
まず本発明のコートキャリヤは負帯電性（即ちトナーを
正に帯電する）とすることができ、帯電速度が速くかつ
電荷の減衰あるいは蓄積等が生じず安定した帯電性を奏
することができる。First, the coated carrier of the present invention can be negatively charged (that is, the toner is positively charged), has a fast charging speed, and exhibits stable charging without attenuation or accumulation of charges.
又、コア材とコート材との密着性が優れ使用中にコート
材がはがれるといった不都合を生じない。In addition, the adhesion between the core material and the coating material is excellent, and there is no problem of the coating material peeling off during use.
更にはコート層を薄くすることもでき、キャリヤの電気
抵抗をコア材のそれとほぼ同等にすることができ、ソリ
ッド部や中間調の再現に優れたキャリヤを提供できる。Furthermore, the coat layer can be made thinner, the electrical resistance of the carrier can be made almost equal to that of the core material, and a carrier with excellent reproduction of solid parts and halftones can be provided.
実施例 以下本発明を実施例により更に具体的に説明する。Example The present invention will be explained in more detail below with reference to Examples.
実施例１ 下記組成のコート材溶液を調へ（シた。Example 1 Prepare a coating material solution with the following composition.
シリコンワニス ＫＲ−２６１（信越化学製）ニア重量
部
２−パーツ０ロオクチルエテルトリエトキフシランを２
０重量％含有するトリクロロトリフロロエチレン溶液
：ａ、ｔｕ部
メチルエチルケトン ：９０重量部
コア拐としての平均粒径が１００μｍのＮｉ−Ｚｎフェ
ライト粒子９０重量部とコート材溶液ｌＯ重量部とを用
い流動末法により７工ライト粒子表面に被覆層を形成し
た。この際約２００℃に加熱した。Silicone varnish KR-261 (manufactured by Shin-Etsu Chemical) Near weight parts 2-Parts 0 Low octyl ethertriethokifusilane 2
Trichlorotrifluoroethylene solution containing 0% by weight
: a, tu part Methyl ethyl ketone : 90 parts by weight A coating layer was formed on the surface of the 7-stage light particles by a fluidized powder method using 90 parts by weight of Ni-Zn ferrite particles with an average particle diameter of 100 μm as core particles and 10 parts by weight of a coating material solution. Formed. At this time, it was heated to about 200°C.
このコートキャリヤ１００重量部にスチレン／ｎ−ブチ
ルメタクリレート共重合体９２％とカーボンブラック８
％とからなるトナー３重量部を混合して現像剤とした。To 100 parts by weight of this coat carrier, 92% of styrene/n-butyl methacrylate copolymer and 8% of carbon black were added.
% toner was mixed to prepare a developer.
この現像剤の帯電性を調べたところ、トナーが２４μｃ
／ｌの正極性に帯電した。又飽和帯電速度は１分であっ
た。この現像剤により有機感光体ζこ形成された負極性
の静電潜像を現像した。When we investigated the charging properties of this developer, we found that the toner was 24 μc.
It was charged to a positive polarity of /l. Further, the saturation charging speed was 1 minute. A negative electrostatic latent image formed on the organic photoreceptor was developed using this developer.
形成された画像はソリッド部、中間調部共に原稿に忠実
であり又カプリも低かった。更に５万枚の複写を行なっ
たが画像の劣化は殆んどなく、−トナーの帯電量も１２
μｃ／ｆであった。The formed image was faithful to the original in both solid and halftone areas, and had low capri. After making 50,000 more copies, there was almost no image deterioration, and the amount of toner charge was 12.
It was μc/f.
この時のキャリヤ表面を観察したところコート材のはが
れ、あるいはトナーの固着等は見られなかった。When the surface of the carrier was observed at this time, no peeling of the coating material or adhesion of toner was observed.
比較の為、フッ素樹脂で被覆したコートキャリヤで同様
の実験を行なったところ、ソリッド部にエッヂ効果のあ
る画像となった。For comparison, a similar experiment was conducted using a coated carrier coated with fluororesin, resulting in an image with an edge effect on the solid portion.
又帯電性は初期値は本発明と変わらないものの繰返し使
用につれて帯電性が低下し、１万枚を越えるあたりから
実用に供さなくなってしまった０
この時のキャリヤ表面にはコート材のはがれが観察され
た。In addition, although the initial value of the charging property was the same as that of the present invention, the charging property decreased with repeated use, and it became unusable after 10,000 sheets were used. At this time, the coating material peeled off on the carrier surface. observed.
Claims (1)
ルシランカツプリング剤 を含有スる被覆層とを有する
こきを特徴とする静電荷現像用キャリヤ。A carrier for electrostatic charge development, comprising a core material, a silicon face on the core material, and a coating layer containing a par-70 roalkyl silane coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59069179A JPS60213961A (en) | 1984-04-09 | 1984-04-09 | Carrier for electrostatic charge development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59069179A JPS60213961A (en) | 1984-04-09 | 1984-04-09 | Carrier for electrostatic charge development |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60213961A true JPS60213961A (en) | 1985-10-26 |
| JPH023182B2 JPH023182B2 (en) | 1990-01-22 |
Family
ID=13395234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59069179A Granted JPS60213961A (en) | 1984-04-09 | 1984-04-09 | Carrier for electrostatic charge development |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60213961A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2360773A (en) * | 1999-09-30 | 2001-10-03 | Nexpress Solutions Llc | Flouropolymer coatings |
| US7470497B2 (en) | 2002-10-02 | 2008-12-30 | Panasonic Corporation | Two-component developer having a resin coated carrier for electrophotography and toner |
| JP2009175687A (en) * | 2007-12-28 | 2009-08-06 | Powdertech Co Ltd | Electrophotographic developer carrier and electrophotographic developer using the same carrier |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH027781U (en) * | 1988-06-23 | 1990-01-18 |
-
1984
- 1984-04-09 JP JP59069179A patent/JPS60213961A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2360773A (en) * | 1999-09-30 | 2001-10-03 | Nexpress Solutions Llc | Flouropolymer coatings |
| GB2360773B (en) * | 1999-09-30 | 2003-08-27 | Nexpress Solutions Llc | Adhesion priming composition for fluororesin coatings |
| US7470497B2 (en) | 2002-10-02 | 2008-12-30 | Panasonic Corporation | Two-component developer having a resin coated carrier for electrophotography and toner |
| JP2009175687A (en) * | 2007-12-28 | 2009-08-06 | Powdertech Co Ltd | Electrophotographic developer carrier and electrophotographic developer using the same carrier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH023182B2 (en) | 1990-01-22 |
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