JPS6396666A - Magnetic color carrier - Google Patents
Magnetic color carrierInfo
- Publication number
- JPS6396666A JPS6396666A JP61242081A JP24208186A JPS6396666A JP S6396666 A JPS6396666 A JP S6396666A JP 61242081 A JP61242081 A JP 61242081A JP 24208186 A JP24208186 A JP 24208186A JP S6396666 A JPS6396666 A JP S6396666A
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- magnetic
- pigment
- dye
- 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
- 239000000049 pigment Substances 0.000 claims abstract description 58
- 239000000843 powder Substances 0.000 claims abstract description 34
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 claims abstract description 4
- 125000005626 carbonium group Chemical group 0.000 claims abstract description 3
- 239000000975 dye Substances 0.000 claims description 40
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000000987 azo dye Substances 0.000 claims description 7
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical group N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 claims description 4
- 239000001000 anthraquinone dye Substances 0.000 claims description 4
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical group N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000001008 quinone-imine dye Substances 0.000 claims description 3
- 239000006247 magnetic powder Substances 0.000 abstract description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 10
- 230000002542 deteriorative effect Effects 0.000 abstract 2
- 150000004060 quinone imines Chemical class 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 27
- 239000000126 substance Substances 0.000 description 26
- 230000005415 magnetization Effects 0.000 description 18
- 239000003795 chemical substances by application Substances 0.000 description 14
- 239000000203 mixture Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 229920000768 polyamine Polymers 0.000 description 11
- 229920005792 styrene-acrylic resin Polymers 0.000 description 11
- 239000004615 ingredient Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 4
- 235000010215 titanium dioxide Nutrition 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- LRFVTYWOQMYALW-UHFFFAOYSA-N 9H-xanthine Chemical compound O=C1NC(=O)NC2=C1NC=N2 LRFVTYWOQMYALW-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- BCHZICNRHXRCHY-UHFFFAOYSA-N 2h-oxazine Chemical compound N1OC=CC=C1 BCHZICNRHXRCHY-UHFFFAOYSA-N 0.000 description 1
- UNBOSJFEZZJZLR-UHFFFAOYSA-N 4-(4-nitrophenylazo)aniline Chemical compound C1=CC(N)=CC=C1N=NC1=CC=C([N+]([O-])=O)C=C1 UNBOSJFEZZJZLR-UHFFFAOYSA-N 0.000 description 1
- FWTBRYBHCBCJEQ-UHFFFAOYSA-N 4-[(4-phenyldiazenylnaphthalen-1-yl)diazenyl]phenol Chemical compound C1=CC(O)=CC=C1N=NC(C1=CC=CC=C11)=CC=C1N=NC1=CC=CC=C1 FWTBRYBHCBCJEQ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- 239000000999 acridine dye Substances 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 150000008425 anthrones Chemical class 0.000 description 1
- LFZDEAVRTJKYAF-UHFFFAOYSA-L barium(2+) 2-[(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate Chemical compound [Ba+2].C1=CC=CC2=C(S([O-])(=O)=O)C(N=NC3=C4C=CC=CC4=CC=C3O)=CC=C21.C1=CC=CC2=C(S([O-])(=O)=O)C(N=NC3=C4C=CC=CC4=CC=C3O)=CC=C21 LFZDEAVRTJKYAF-UHFFFAOYSA-L 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 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
- 239000003822 epoxy resin Substances 0.000 description 1
- UHOKSCJSTAHBSO-UHFFFAOYSA-N indanthrone blue Chemical compound C1=CC=C2C(=O)C3=CC=C4NC5=C6C(=O)C7=CC=CC=C7C(=O)C6=CC=C5NC4=C3C(=O)C2=C1 UHOKSCJSTAHBSO-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- -1 polyazo Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical compound C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 1
- WPPDXAHGCGPUPK-UHFFFAOYSA-N red 2 Chemical compound C1=CC=CC=C1C(C1=CC=CC=C11)=C(C=2C=3C4=CC=C5C6=CC=C7C8=C(C=9C=CC=CC=9)C9=CC=CC=C9C(C=9C=CC=CC=9)=C8C8=CC=C(C6=C87)C(C=35)=CC=2)C4=C1C1=CC=CC=C1 WPPDXAHGCGPUPK-UHFFFAOYSA-N 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000001016 thiazine dye Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- 229940075420 xanthine Drugs 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- G03G9/09—Colouring agents for toner particles
- G03G9/0906—Organic dyes
- G03G9/0916—Quinoline; Polymethine dyes
-
- 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
- G03G9/09—Colouring agents for toner particles
- G03G9/0902—Inorganic compounds
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔概 要〕
本発明による磁性キャリアは、Ｆｅ系の磁性微粉末と、
該磁性微粉末に対する隠蔽力が大である染料又は顔料と
を少なくとも結着樹脂中に含有する。これらのキャリア
は、特に多色電子写真法においてカラートナーと混合し
て使用した場合、印刷物の色調を低下させずに、鮮明な
カラー画像を提供することができる。[Detailed Description of the Invention] [Summary] The magnetic carrier according to the present invention comprises Fe-based magnetic fine powder,
At least a binder resin contains a dye or a pigment that has a large hiding power for the magnetic fine powder. These carriers, especially when used in combination with color toners in multicolor electrophotography, can provide sharp color images without reducing the tone of printed matter.
本発明は電子写真法、特に多色電子写真法に関する。本
発明は、さらに詳しく述べると、色調の低下を伴なわず
に鮮明なカラー画像を形成可能な、このような写真法等
において特にカラートナーと混合して使用する磁性カラ
ーキャリアに関する。The present invention relates to electrophotography, particularly multicolor electrophotography. More specifically, the present invention relates to a magnetic color carrier that is capable of forming clear color images without deterioration of tone and is used in combination with color toner, especially in such photographic methods.
従来、電子写真法としては米国特許第２２９７６９１号
明細書に記載された方式が周知である。この方式は光導
電性絶縁体を利用し、コロナ放電等により該絶縁体上に
一様な静電荷を与える。次に、種種の手段で絶縁体層に
光像を照射することによって電気的潜像を形成し、次い
で該潜像をトナーと呼ばれる微粉末を用いて現像、可視
化し、必要に応じて紙等にトナー画像を転写し、その後
圧力、熱、光等により定着を行い印刷物を得る方式であ
る。Conventionally, as an electrophotographic method, the method described in US Pat. No. 2,297,691 is well known. This method utilizes a photoconductive insulator and applies a uniform electrostatic charge onto the insulator by means of a corona discharge or the like. Next, an electrical latent image is formed by irradiating the insulating layer with a light image using various means, and then the latent image is developed and visualized using a fine powder called toner, and if necessary, it is This is a method in which a toner image is transferred to a paper and then fixed using pressure, heat, light, etc. to obtain printed matter.
この方式で電気潜像を現像するためのトナーとしては、
従来より天然または合成高分子物質からなる結着樹脂中
に着色剤等を分散させたものを５〜２０μｍ程度に微粉
砕した粒子が用いられている。このようなトナーは、通
常、キャリアと呼ばれる担体物質と混合され、現像剤と
して静電的潜像の現像に用いられる。ここで用いられる
前記キャリアとしては、鉄、フェライト、マグネタイト
等の磁性粉体、これらの磁性粉体の樹脂被覆物、または
磁性微粉末を樹脂中に分散した複合磁性粉体等の磁性キ
ャリアが広く実用化されている。The toner used to develop the electric latent image using this method is as follows:
Conventionally, particles obtained by dispersing a coloring agent or the like in a binder resin made of a natural or synthetic polymeric substance and pulverizing the particles to about 5 to 20 μm have been used. Such toner is usually mixed with a carrier material called a carrier and used as a developer to develop an electrostatic latent image. As the carrier used here, magnetic carriers such as magnetic powders such as iron, ferrite, and magnetite, resin coatings of these magnetic powders, and composite magnetic powders in which fine magnetic powders are dispersed in resin are widely used. It has been put into practical use.
一方、最近では使用目的が多種多様になり、必要に応じ
て所望のカラー印刷が行える複写機、プリンタ等が望ま
れている。これは、トナー中の着色剤をカーボン等の黒
色のものから所望の色の染料、顔料等に変えることで実
現でき、該トナーは黒トナーと同様に現像、転写、定着
される。しかし、通常トナーの担体物質であるキャリア
も少量ではあるがトナーとともに現像され、所謂キャリ
ア付着の現象が起きる。磁性キャリアは通常黒色乃至黒
に近い暗色を呈しており、カラートナーを用いる場合、
極値かなキャリアの混入でも、色調の低下を招くという
問題がある。On the other hand, recently, the purposes of use have become more diverse, and there is a demand for copying machines, printers, etc. that can perform desired color printing as needed. This can be achieved by changing the coloring agent in the toner from a black material such as carbon to a dye, pigment, etc. of the desired color, and the toner is developed, transferred, and fixed in the same manner as the black toner. However, a small amount of carrier, which is normally a toner carrier material, is also developed together with the toner, resulting in a so-called carrier adhesion phenomenon. Magnetic carriers are usually black or dark in color, and when using color toner,
Even if an extreme amount of carrier is mixed in, there is a problem in that the color tone deteriorates.
上記から明らかなように、多色電子写真法では、現像時
にカラートナーと混合して使用する磁性キャリアに原因
して色調の低下がひきおこされるという問題がある。本
発明の目的は、したがって、この問題点を解決して、印
刷物の色調を低下させずに鮮明なカラー画像を形成する
ことのできる方法を提供することにある。As is clear from the above, multicolor electrophotography has a problem in that the color tone deteriorates due to the magnetic carrier mixed with color toner during development. Therefore, an object of the present invention is to provide a method that can solve this problem and form a clear color image without reducing the tone of the printed matter.
上記した問題点は、本発明によれば、磁性微粉末を樹脂
中に分散した複合磁性粉体をキャリアとして用い、さら
にこのキャリア中に、キャリア中の磁性粉体の色を隠蔽
可能な染料又は顔料を含ませることによって達成するこ
とができる。The above-mentioned problems can be solved by using a composite magnetic powder in which fine magnetic powder is dispersed in a resin as a carrier, and further adding a dye or a dye capable of concealing the color of the magnetic powder in the carrier to the carrier. This can be achieved by including pigments.
本発明の実施において、キャリア中の磁性粉体の色の隠
蔽は、好ましくは、磁性粉体そのものに対する隠蔽力が
大である染料又は顔料を用いて、あるいは着色力が大で
ある染料又は顔料を含有させることによって該キャリア
をカラートナーと同系色に着色することによって、有利
に達成することができる。なお、本願明細書において、
染料及び顔料の両者を指すために“染顔料”なる語を屡
々使用する。In the practice of the present invention, the color of the magnetic powder in the carrier is preferably concealed by using a dye or pigment that has a high hiding power for the magnetic powder itself, or by using a dye or pigment that has a high coloring power. This can be advantageously achieved by coloring the carrier in a similar color to the color toner. In addition, in the specification of this application,
The term "dye and pigment" is often used to refer to both dyes and pigments.
本発明による磁性カラーキャリアにおいて、樹脂中に含
有せしめる磁性微粉末は、好ましくは、磁化の大きなＦ
ｅ系の微粉末である。In the magnetic color carrier according to the present invention, the magnetic fine powder contained in the resin is preferably F, which has a large magnetization.
It is an e-based fine powder.
さらに、使用する磁性微粉末及び染顔料の量は、それぞ
れ、約３０〜５０重量％及び約５〜２０重量％であるこ
とが好ましい。Furthermore, the amounts of magnetic fine powder and dye and pigment used are preferably about 30 to 50% by weight and about 5 to 20% by weight, respectively.
本発明による磁性カラーキャリアにおいて有利に使用す
ることのできる高隠蔽力の染顔料は、例えば、カルボニ
ウム系染顔料、ＴｉＯ□系微粉末、メチン系染料、キノ
ンイミン系染料、アントラキノン系染顔料、キナクリド
ン系顔料、フタロシアニン系顔料、アゾ系染顔料、その
他である。これらの染顔料は、単独で使用してもよく、
あるいは２種類以上を混合して使用してもよい。典型的
な染顔料の例をいくつか列挙すると、次の通りである二
カルボニウム系染顔料は、ジフェニルメタン系染料、ト
リフェニルメタン系染料、キサンチン系染料、アクリジ
ン系染料乃至これらのレーキ顔料であり、例えば、
Ｃ，１，Ｂａ５ｉｃ Ｂｌｕｅｌ ：
■
Ｃ，１，Ｂａ５ｉｃ Ｖｉｏｌｅｔ １０ ：Ｃ，１
，Ｂａ５ｉｃ Ｏｒａｎｇｅ １５ ：ＣＪ、Ｐｉｇ
ｎ＋ｅｎｔ Ｖｉｏｌｅｔｌ ：Ｃ，１，Ｐｉｇｍｅ
ｎｔ Ｇｒｅｅｎ １ ：等の染顔料を包含する。Dyes and pigments with high hiding power that can be advantageously used in the magnetic color carrier according to the present invention include carbonium dyes and pigments, TiO□-based fine powders, methine dyes, quinoneimine dyes, anthraquinone dyes and pigments, and quinacridone Pigments, phthalocyanine pigments, azo dyes and pigments, and others. These dyes and pigments may be used alone,
Alternatively, two or more types may be used in combination. Some typical examples of dyes and pigments are as follows. Dicarbonium dyes and pigments include diphenylmethane dyes, triphenylmethane dyes, xanthine dyes, acridine dyes, and lake pigments thereof. For example, C,1,Ba5ic Blue: ■ C,1,Ba5ic Violet 10:C,1
, Ba5ic Orange 15: CJ, Pig
n+ent Violetl :C, 1, Pigme
nt Green 1: and other dyes and pigments.
本発明に用いられるＴｉＯ２系微粉末はルチル型または
アナタース型二酸化チタン（チタンホワイト）あるいは
チタンイエローである。さらに、隠蔽力を大きくするた
め、これらの微粉末の粒子径は０．１〜１μｍとするこ
とが好ましい。The TiO2-based fine powder used in the present invention is rutile type or anatase type titanium dioxide (titanium white) or titanium yellow. Furthermore, in order to increase the hiding power, the particle size of these fine powders is preferably 0.1 to 1 μm.
メチン系染料としては、例えば、
Ｃ，１，Ｂａ５ｉｃ Ｙｅｌｌｏｗ １１ ：Ｃ，１
，Ｂａ５ｉｃ Ｒｅｄ １２ ：等を用いることができ
る。Examples of methine dyes include C,1,Ba5ic Yellow 11 :C,1
, Ba5ic Red 12 : etc. can be used.
キノンイミン系染料は、アジン染料、オキサジン染料乃
至チアジン染料であり、例えば、Ｃ，１，Ｂａ５ｉｃ
Ｒｅｄ ２ ：Ｃ，１，Ｂａ５ｉｃ Ｂｌｕｅ３ ：
ＯＣ，）ｌ。Quinoneimine dyes include azine dyes, oxazine dyes, and thiazine dyes, such as C,1,Ba5ic
Red 2: C, 1, Ba5ic Blue 3: OC, )l.
ｌｅ
Ｃ，１，Ｂａ５ｉｃ Ｂｌｕｅ９ ：等を包含する
。le C,1, Ba5ic Blue9: etc.
アントラキノン系染顔料は、アントラキノン誘導体又は
アントロン誘導体であり、例えば、Ｃ，１，Ｄｉｓｐｅ
ｒｓｅ Ｒｅｄ １５ ：Ｃ，１，Ｄｉｓｐｅｒｓｅ
Ｂｌｕｅ ３ ：等の染料、そして
Ｃ，Ｉ、Ｖａｔ Ｙｅｌｌｏｗｌ ：
Ｃ，１，Ｖａｔ Ｂｌｕｅ４ ：
等の顔料を包含する。Anthraquinone dyes and pigments are anthraquinone derivatives or anthrone derivatives, such as C,1,Dispe.
rse Red 15 :C, 1, Disperse
It includes dyes such as Blue 3: and pigments such as C, I, Vat Yellow: C, 1, Vat Blue 4:.
キナクリドン系顔料としては、例えば、Ｃ０１，Ｐｉｇ
ｍｅｎｔ Ｖｉｏｌｅｔ １９ ：Ｃ，１，Ｐｋｇｍ
ｅｎｔ Ｒｅｄ １２２ ：等を用いることができ
る。Examples of quinacridone pigments include C01, Pig
ment Violet 19:C, 1, Pkgm
ent Red 122: etc. can be used.
フタロシアニン系顔料としては、特に銅フタロシアニン
系顔料が好ましく、例えば、α型またはβ型鋼フタロシ
アニン（Ｃ，１，Ｐｉｇｍｅｎｔ Ｂｌｕｅ １５）
。As the phthalocyanine pigment, a copper phthalocyanine pigment is particularly preferable, such as α-type or β-type steel phthalocyanine (C, 1, Pigment Blue 15).
.
Ｐｏ１ｙ−ｃｈｌｏｒｏ−銅フタロシアニン（Ｃ，Ｉ、
Ｐｉｇｓ＋ｅｎｔＧｒｅｅｎ ７） 、Ｐｏｌｙ−ｃ
ｈｌｏｒｏ−ｂｒｏｍｏ−銅フタロシアニン（Ｃ，１，
Ｐｉｇｍｅｎｔ Ｇｒｅｅｎ ３６）等を用いることが
できる。Po1y-chloro-copper phthalocyanine (C,I,
Pigs+entGreen 7), Poly-c
hloro-bromo-copper phthalocyanine (C,1,
Pigment Green 36) etc. can be used.
アゾ系染顔料は、モノアゾ染料、ポリアゾ染料、金属錯
塩アゾ染料、スチルベンゼンアゾ染料、チアゾールアゾ
染料、乃至不溶性アブ顔料、アゾレーキ顔料、縮合型ア
ゾ顔料等である。これらの染顔料は、例えば、
Ｃ９夏、５ｏｌｖｅｎｔ Ｙｅｌｌｏｗ １６
：Ｃ，（、Ｄｉｓｐｅｒｓｅ Ｏｒａｎｇｅ ３
：等の染料、そして
Ｃ，１，Ｐｉｇｍｅｎｔ Ｏｒａｎｇｅ １３ ：Ｃ
，１，Ｐｉｇｍｅｎｔ Ｒｅｄ ５７ ：Ｃ，１，Ｐｉ
ｇｍｅｎｔ Ｇｒｅｅｎ １０ ：等の顔料を包含す
る。但し、以上に列挙した染顔料において、黒色あるい
は暗色のものは色調の低下を招くので、使用を避けるこ
とが好ましい。Azo dyes and pigments include monoazo dyes, polyazo dyes, metal complex azo dyes, stilbenzene azo dyes, thiazole azo dyes, insoluble ab pigments, azo lake pigments, and condensed azo pigments. These dyes and pigments are, for example, C9 Summer, 5olvent Yellow 16
:C, (, Disperse Orange 3
: and C,1, Pigment Orange 13 :C
,1,Pigment Red 57 :C,1,Pi
Gment Green 10: and other pigments. However, among the dyes and pigments listed above, it is preferable to avoid using black or dark-colored ones because they cause a decrease in color tone.
本発明は、上述の説明から明らかなように、磁化の大き
なＦｅ系の磁性微粉末を用いて磁性微粉末の含有量を少
なくし、かつ同時に隠蔽力の大きな特定の染顔料を含有
させることにより磁性微粉末の色を隠蔽した複合磁性粉
体をキャリアとし用いるものである。磁性微粉末の粒子
径は、樹脂中への分散を良くするため、３μｍ以下とす
ることが好ましい。また、磁性微粉末の磁化はほぼ現像
スリーブ上の磁界に等しいＩ Ｋｏｅにおいて８０ｅｍ
ｕ／ ｇ以上であることが好ましく、これにより磁性微
粉末の含有量を５Ｑｗｔ％以下に抑えてもキャリアの磁
化を十分大きくすることが可能である。As is clear from the above description, the present invention uses Fe-based magnetic fine powder with high magnetization to reduce the content of magnetic fine powder, and at the same time contains a specific dye and pigment with high hiding power. A composite magnetic powder that hides the color of the magnetic fine powder is used as a carrier. The particle size of the magnetic fine powder is preferably 3 μm or less in order to improve dispersion in the resin. In addition, the magnetization of the magnetic fine powder is 80em at I Koe, which is approximately equal to the magnetic field on the developing sleeve.
It is preferable that it is at least u/g, and thereby it is possible to sufficiently increase the magnetization of the carrier even if the content of the magnetic fine powder is suppressed to 5 Qwt% or less.
本発明の磁性カラーキャリアは、通常の粉砕法、スプレ
ードライ法等により調製でき、また該キャリアの平均粒
径は約５〜１００μｍ、好ましくは約１０〜５０μｍで
ある。本発明において磁性微粉末、染顔料等を分散させ
る結着樹脂としては、エポキシ系樹脂、スチレン系樹脂
、ポリエステル樹脂、フェノール樹脂等を用いることが
でき、特に限定されるものではない。さらに、必要に応
じて、帯電制御剤、抵抗制御剤等、種々の添加剤を含有
または外添してもよい。ただし、これらの添加剤として
は黒色或いは暗色のものは好ましくない。The magnetic color carrier of the present invention can be prepared by a conventional pulverization method, spray drying method, etc., and the average particle size of the carrier is about 5 to 100 μm, preferably about 10 to 50 μm. In the present invention, the binder resin for dispersing magnetic fine powder, dyes and pigments, etc. may be epoxy resin, styrene resin, polyester resin, phenol resin, etc., and is not particularly limited. Furthermore, various additives such as a charge control agent and a resistance control agent may be contained or externally added as necessary. However, black or dark colored additives are not preferred.
引き続いて、本発明の磁性カラーキャリアをいくつかの
実施例をあげて説明する。Subsequently, the magnetic color carrier of the present invention will be described with reference to some examples.
下記の成分：
スチレン−アクリル樹脂
（ハイマＳＢＭ−６００．三洋化成工業）１００重量部
Ｆｅ微粉末
（粒子径２１’ ”＋ ＩＫＯｅでの
磁化９３ｅｍｕ／ｇ、関東電化）６５重量部顔料Ｒｈｏ
ｄａｍｉｎｅ Ｂ Ｌａｋｅ（東洋インキ）１５重量部
帯電制御剤
（ポリアミンＡＦＰ−Ｂ、オリエント化学工業）５重量
部
をヘンシシェルミキサにて混合し、次いで２本ロールミ
ルで溶融混練した。冷却後、ロートプレックス粉砕機に
て粗粉砕し、さらにジェットミルにて微粉砕した後、風
力分級して平均粒径２０μｍの赤系に着色した磁性キャ
リアを得た。The following ingredients: Styrene-acrylic resin (Hiima SBM-600. Sanyo Chemical Industries) 100 parts by weight Fe fine powder (particle size 21''' + magnetization 93 emu/g at IKOe, Kanto Denka) 65 parts by weight Pigment Rho
15 parts by weight of Damine B Lake (Toyo Ink) and 5 parts by weight of a charge control agent (Polyamine AFP-B, Orient Chemical Industries) were mixed in a Henshi shell mixer, and then melt-kneaded in a two-roll mill. After cooling, the mixture was coarsely pulverized using a Rotoplex pulverizer, further finely pulverized using a jet mill, and then air classified to obtain a red colored magnetic carrier having an average particle size of 20 μm.
このキャリアに赤系カラートナー１０ｗｔ％を混合し、
得られた現像剤を市販複写機に入れて画像を出したとこ
ろ、鮮明なカラー画像が得られた。Mix 10 wt% of red color toner with this carrier,
When the obtained developer was placed in a commercially available copying machine and an image was produced, a clear color image was obtained.
さらに、フォトコンドラムの表面電位を１００Ｖ高くし
て画像を出したところ、キャリア付着は多くなったが、
画像の鮮明さは失われなかった。Furthermore, when the surface potential of the photocon drum was increased by 100 V to produce an image, more carrier adhesion occurred, but
Image clarity was not lost.
例」−けり幻仕り
下記の成分：
スチレン−アクリル樹脂
（ハイマＳＢＭ−６００．三洋化成工業）８０重量部マ
グネタイト微粉末
（粒子径１ ／’ ｍ ＋ ＩＫＯｅでの磁化６０ｅｍ
ｕ／ｇ、関東電化）１００重量部帯電制御剤
（ポリアミンＡＦＰ−８．オリエント化学工業）５重量
部
の混合物を前記例１と同様にして、溶融混練、粉砕、分
級して平均粒径２０μｍの磁性キャリアを得た。得られ
たキャリアは黒色を呈し、また磁界Ｉ ＫＯｅでの磁化
は前記例１のキャリアとほぼ同じであった。Example"-Kerigenshiri The following ingredients: Styrene-acrylic resin (Haima SBM-600. Sanyo Chemical Industries) 80 parts by weight Fine magnetite powder (particle size 1/' m + magnetization at IKOe 60 em
A mixture of 100 parts by weight (U/g, Kanto Denka) and 5 parts by weight of a charge control agent (Polyamine AFP-8. Orient Chemical Industry) was melt-kneaded, pulverized, and classified in the same manner as in Example 1 above to obtain an average particle size of 20 μm. A magnetic carrier was obtained. The obtained carrier exhibited a black color, and its magnetization in the magnetic field IKOe was almost the same as that of the carrier of Example 1.
このキャリアに赤系カラートナーＩＱｗｔ％を混合し、
前記例１と同様に市販複写機に入れて画像を出したとこ
ろ、キャリア付着のない場合では鮮明なカラー画像が得
られた。しかし、キャリア付着がある場合では画像の彩
度、明度とも大幅に低下した。Mixing red color toner IQwt% with this carrier,
When the image was produced by placing it in a commercially available copying machine in the same manner as in Example 1, a clear color image was obtained in the case where no carrier was attached. However, when there was carrier adhesion, both the saturation and brightness of the image decreased significantly.
貫主
下記の成分：
スチレン−アクリル樹脂
（ハイマＴＢ−１０００．三洋化成工業）１００重量部
Ｆｅ微粉末
（粒子径２１’ ｍ＋ ＩＫＯｅでの
磁化９３ｅｍｕ／ｇ、関東電化）６５重量部チタンホワ
イト（チタン工業）１５重量部帯電制御剤
（ポリアミンＡＦＰ−Ｂ、オリエント化学）５重量部を
ヘンシシェルミキサにて混合し、次いで２本ロールミル
で溶融混練した。冷却後、ロートブレックス粉砕機にて
粗粉砕し、さらにジェットミルにて微粉砕した後、風力
分級して平均粒径２０μｍの淡灰色の磁性キャリアを得
た。Main ingredients: Styrene-acrylic resin (Haima TB-1000. Sanyo Chemical Industries) 100 parts by weight Fe fine powder (particle size 21' m + magnetization 93 emu/g at IKOe, Kanto Denka) 65 parts by weight Titanium white (Titan Industries) ) 15 parts by weight of a charge control agent (polyamine AFP-B, manufactured by Orient Chemical) were mixed in a Henshi shell mixer, and then melt-kneaded in a two-roll mill. After cooling, the mixture was coarsely pulverized using a Rotobrex pulverizer, further finely pulverized using a jet mill, and then air classified to obtain a pale gray magnetic carrier having an average particle size of 20 μm.
このキャリアに赤系カラートナーＩＱｗｔ％を混合し、
得られた現像剤を市販複写機に入れて画像を出したとこ
ろ、鮮明なカラー画像が得られた。Mixing red color toner IQwt% with this carrier,
When the obtained developer was placed in a commercially available copying machine and an image was produced, a clear color image was obtained.
さらに、フォトコンドラムの表面電位を１００ Ｖ高く
して画像を出したところ、キャリア付着は多くなったが
、画像の鮮明さは失われなかった。Furthermore, when an image was produced by increasing the surface potential of the photocondrum by 100 V, more carrier adhesion occurred, but the sharpness of the image was not lost.
斑土ユ且較炭し
下記の成分：
スチレン−アクリル樹脂
（ハイマＴＢ−１０００，三洋化成工業）８０重量部マ
グネタイト微粉末
（粒子径１μｍ、 ＩＫＯｅでの磁化
６０ｅｍｕ／ｇ、関東電化）１００重量部帯電制御剤
（ポリアミンＡＦＰ−８．オリエント化学）５重量部の
混合物を前記例３と同様にして、溶融混練、粉砕、分級
して平均粒径２０μｍの磁性キャリアを得た。得られた
キャリアは黒色を呈し、また磁界Ｉ ＫＯｅでの磁化は
前記例３のキャリアとほぼ同じであった。The following ingredients: Styrene-acrylic resin (Haima TB-1000, Sanyo Chemical Industries) 80 parts by weight Magnetite fine powder (particle size 1 μm, magnetization at IKOe 60 emu/g, Kanto Denka) 100 parts by weight A mixture of 5 parts by weight of a charge control agent (Polyamine AFP-8. Orient Chemical) was melt-kneaded, pulverized, and classified in the same manner as in Example 3 to obtain a magnetic carrier having an average particle size of 20 μm. The obtained carrier exhibited a black color, and its magnetization in the magnetic field IKOe was almost the same as that of the carrier of Example 3.
このキャリアに赤系カラートナーＩ ９ｗｔ％を混合し
、前記例３と同様にして画像を出したところキャリア付
着のない場合では鮮明なカラー画像が得られた。しかし
、キャリア付着が多くなると画像の彩度、明度とも大幅
に低下した。When 9 wt % of red color toner I was mixed with this carrier and an image was produced in the same manner as in Example 3, a clear color image was obtained in the absence of carrier adhesion. However, as the amount of carrier adhesion increased, both the saturation and brightness of the image decreased significantly.
炭工
下記の成分：
スチレン−アクリル樹脂
（ハイマＳＢＭ−６００．三洋化成工業）１００重量部
Ｆｅ微粉末
（粒子径２１’ ｒｎ ｌ ＩＫＯｅでの磁化９３ｅｍ
ｕ／ｇ、関東電化）６５重量部染料（八１ｚｅｎ Ａｓ
ｔｒａ Ｐｈ１ｏｘｉｎｅ ＰＦ Ｃ０ｎＣ，＋保土谷
化学工業）１５重量部
帯電制御剤
（ポリアミンＡＦＰ−８．オリエント化学工業）５重量
部
をヘンシシェルミキサにて混合し、次いで２本ロールミ
ルで溶融混練した。冷却後、ロートブレックス粉砕機に
て粗粉砕し、さらにジェットミルにて微粉砕した後、風
力分級して平均粒径２０μｍの赤系に着色した磁性キャ
リアを得た。Charcoal The following ingredients: Styrene-acrylic resin (Haima SBM-600. Sanyo Chemical Industries) 100 parts by weight Fe fine powder (particle size 21'rnl magnetization at IKOe 93em
u/g, Kanto Denka) 65 parts by weight dye (81zen As
tra Ph1oxine PF COnC, + Hodogaya Chemical Industry) 15 parts by weight and 5 parts by weight of a charge control agent (Polyamine AFP-8. Orient Chemical Industry) were mixed in a Henshi shell mixer, and then melted and kneaded in a two-roll mill. After cooling, the mixture was coarsely pulverized using a Rotobrex pulverizer, further finely pulverized using a jet mill, and then air classified to obtain a red colored magnetic carrier having an average particle size of 20 μm.
このキャリアに赤系カラートナーｌ ９ｗｔ％を混合し
、得られた現像剤を市販複写機に入れて画像を出したと
ころ、鮮明なカラー画像が得られた。When this carrier was mixed with 9 wt % of red color toner 1 and the resulting developer was placed in a commercially available copying machine to produce an image, a clear color image was obtained.
さらに、フォトコンドラムの表面電位を１００ｖ高くし
て画像を出したところ、キャリア付着は多くなったが、
画像の鮮明さは失われなかった。Furthermore, when the surface potential of the photocondrum was increased by 100V to produce an image, more carrier adhesion occurred, but
Image clarity was not lost.
本例との比較のため、前記例２（比較例）を参照された
い。For comparison with this example, please refer to Example 2 (comparative example) above.
肛
下記の成分：
スチレン−アクリル樹脂
（ハイマＳＢＭ−６００．三洋化成工業）１００重量部
Ｆｅ微粉末
（粒子径２．ｃｒｍ、１ＫＯｅでの
磁化９３ｅｍｕ／ｇ、関東電化）６５重量部染料（Ａｉ
ｚｅｎ Ｂａ５ｉｃ Ｐｕｒｅ Ｂｌｕｅ ５ＨＧ＋保
土谷化学工業）１５重量部
帯電制御剤
（ポリアミンＡＦＰ−８．オリエント化学工業）５重量
部
をヘンシシエルミキサにて混合し、次いで２本ロールミ
ルで溶融混練した。冷却後、ロートプレックス粉砕機に
て粗粉砕し、さらにジェットミルにて微粉砕した後、風
力分級して平均粒径２０μｍの前糸に着色した磁性キャ
リアを得た。The following ingredients: Styrene-acrylic resin (Haima SBM-600, Sanyo Chemical Industries) 100 parts by weight Fe fine powder (particle size 2.crm, magnetization 93 emu/g at 1 KOe, Kanto Denka) 65 parts by weight dye (Ai
zen Ba5ic Pure Blue 5HG + 15 parts by weight of Hodogaya Chemical Industry Co., Ltd.) 5 parts by weight of a charge control agent (Polyamine AFP-8. Orient Chemical Industry Co., Ltd.) were mixed in a Henshishiel mixer, and then melt-kneaded in a two-roll mill. After cooling, the mixture was coarsely pulverized using a Rotoplex pulverizer, further finely pulverized using a jet mill, and then classified by wind to obtain a colored magnetic carrier having an average particle diameter of 20 μm.
このキャリアに青光カラートナーＩＱｗｔ％を混合し、
得られた現像剤を市販複写機に入れて画像を出したとこ
ろ、鮮明なカラー画像が得られた。Mix blue light color toner IQwt% with this carrier,
When the obtained developer was placed in a commercially available copying machine and an image was produced, a clear color image was obtained.
さらに、フォトコンドラムの表面電位を１００Ｖ高くし
て画像を出したところ、キャリア付着は多くなったが、
画像の鮮明さは失われなかった。Furthermore, when the surface potential of the photocon drum was increased by 100 V to produce an image, more carrier adhesion occurred, but
Image clarity was not lost.
側ユＪＩＪＪＬｔリ−
下記の成分：
スチレン−アクリル樹脂
（ハイマＳＢＭ−６００．三洋化成工業＞ ＳＯ重
量部マグネタイト微粉末
（粒子径１ ／’ ｍ＋ ＩＫＯｅでの磁化６０ｅｗｕ
／ｇ、関東電化）１００重量部帯電制御剤
（ポリアミンＡＦＰ−８．オリエント化学工業）５重量
部
の混合物を前記例６と同様にして、溶融混練、粉砕、分
級して平均粒径２ｏμｍの磁性キャリアを得た。得られ
たキャリアは黒色を呈し、また磁界Ｉ ＫＯｅでの磁化
は前記例６のキャリアとほぼ同じであった。The following components: Styrene-acrylic resin (Haima SBM-600. Sanyo Chemical Industries) Part by weight of SO Magnetite fine powder (Particle size 1/' m + Magnetization at IKOe 60 ewu
/g, Kanto Denka) 100 parts by weight of a charge control agent (Polyamine AFP-8. Orient Chemical Industries) A mixture of 5 parts by weight of a charge control agent (Polyamine AFP-8. Orient Chemical Industry) was melt-kneaded, pulverized, and classified in the same manner as in Example 6 above to obtain a magnetic material with an average particle size of 2 μm. I got a career. The obtained carrier exhibited a black color, and its magnetization in the magnetic field IKOe was almost the same as that of the carrier of Example 6.
このキャリアに青光カラートナーＩ Ｑｗｔ％を混合し
、前記例６と同様に市販複写機に入れて画像を出したと
ころキャリア付着のない場合では鮮明なカラー画像が得
られた。しかしキャリア付着がある場合では画像の彩度
、明度とも大幅に低下した。Blue light color toner I Qwt% was mixed with this carrier, and when the image was produced by putting it into a commercially available copying machine in the same manner as in Example 6, a clear color image was obtained in the absence of carrier adhesion. However, when there was carrier adhesion, both the saturation and brightness of the image decreased significantly.
肛
下記の成分：
スチレン−アクリル樹脂
（ハイ？ＳＢＭ−６００，三洋化１ｔｉ工業＞ １
００！１ｆｆｉ部Ｆｅ微粉末
（粒子径２１’ ｍ＋ ＩＫＯｅでの
磁化９３ｅ慣ｕ／ｇ＋間東電化）６５重量部アントラキ
ノン系染料
（Ｓｕｍｉｐｌａｓｔ Ｒｅｄ ５Ｒ，住人化学工業＞
１５重量部帯電制御剤
（ポリアミン＾ＦＰ−８．オリエント化学工業）５重量
部
をヘンシシェルミキサにて混合し、次いで２本ロールミ
ルで溶融混練した。冷却後、ロートブレックス粉砕機に
て粗粉砕し、さらにジェットミルにて微粉砕した後、風
力分級して平均粒径２ｏμｍの赤系に着色した磁性キャ
リアを得た。Ingredients below: Styrene-acrylic resin (high? SBM-600, Sanyo Ka 1ti Industries> 1
00! 1ffi part Fe fine powder (particle size 21' m + magnetization at IKOe 93e customary u/g + between Todenka) 65 parts by weight anthraquinone dye (Sumiplast Red 5R, Sumima Kagaku Kogyo >
15 parts by weight of a charge control agent (Polyamine^FP-8. Orient Chemical Industries) were mixed in a Henshi shell mixer, and then melt-kneaded in a two-roll mill. After cooling, the mixture was coarsely pulverized using a Rotobrex pulverizer, further finely pulverized using a jet mill, and then air classified to obtain a red colored magnetic carrier having an average particle size of 2 μm.
このキャリアに赤系カラートナーＩＱｗｔ％を混合し、
得られた現像剤を市販複写機に入れて画像を出したとこ
ろ、鮮明なカラー画像が得られた。Mixing red color toner IQwt% with this carrier,
When the obtained developer was placed in a commercially available copying machine and an image was produced, a clear color image was obtained.
さらに、フォトコンドラムの表面電位を１００ｖ高くし
て画像を出したところ、キャリア付着は多くなったが、
画像の鮮明さは失われなかった。Furthermore, when the surface potential of the photocondrum was increased by 100V to produce an image, more carrier adhesion occurred, but
Image clarity was not lost.
本例との比較のため、前記例７（比較例）を参照された
い。For comparison with this example, please refer to Example 7 (comparative example) above.
■工
下記の成分：
スチレン−アクリル樹脂ｆ脂
（ハイマＳＢＭ−６００．三洋化成工業）１００重量部
Ｆｅ？ｊｆＸ粉末
（粒子径２ ｔ’ １１１．１ＫＯｅでの磁化９３ｅｍ
ｕ／ｇ、関東電化）６５重量部キナクリドン系顔料
（Ｃｉｎｑｕａｓｉｓ Ｒｅｄ ＲＴ−７５９＋デユポ
ン）１５重量部
帯電制御剤
（ポリアミンＡＦＰ−８．オリエント化学工業）５重量
部
をヘンシシェルミキサにて混合し、次いで２本ロールミ
ルで溶融混練した。冷却後、ロートブレックス粉砕機に
て粗粉砕し、さらにジェットミルにて微粉砕した後、風
力分級して平均粒径２０μｍの赤系に着色した磁性キャ
リアを得た。■Ingredients below: 100 parts by weight of styrene-acrylic resin (Hiima SBM-600. Sanyo Chemical Industries) Fe? jfX powder (magnetization 93em at particle size 2t' 111.1KOe
u/g, Kanto Denka) 65 parts by weight Quinacridone pigment (Cinquasis Red RT-759 + Dupont) 15 parts by weight Charge control agent (Polyamine AFP-8. Orient Chemical Industry) 5 parts by weight were mixed in a Henshi shell mixer, and then The mixture was melt-kneaded using a two-roll mill. After cooling, the mixture was coarsely pulverized using a Rotobrex pulverizer, further finely pulverized using a jet mill, and then air classified to obtain a red colored magnetic carrier having an average particle size of 20 μm.
このキャリアに赤系カラートナーＩＱｗｔ％を混合し、
得られた現像剤を市販複写機に入れて画像を出したとこ
ろ、鮮明なカラー画像が得られた。Mixing red color toner IQwt% with this carrier,
When the obtained developer was placed in a commercially available copying machine and an image was produced, a clear color image was obtained.
さらに、フォトコンドラムの表面電位を１００■高くし
て画像を出したところ、キャリア付着は多くなったが、
画像の鮮明さは失われなかった。Furthermore, when the surface potential of the photocondrum was increased by 100μ to produce an image, more carrier adhesion occurred, but
Image clarity was not lost.
本例との比較のため、前記例２（比較例）を参照された
い。For comparison with this example, please refer to Example 2 (comparative example) above.
五上皇
下記の成分：
スチレン−アクリル樹脂
（ハイマＳＢＭ−６００．三洋化成工業）１００重量部
Ｆｅ微粉末
（粒子径２ ／’ ｍ ＋ ＩＫＯｅでの磁化９３ｅ慣
ｕ／ｇｔ関東電化）６５重量部ε型銅フタロシアニン顔
料
（Ｌｉｏｎｏｌ Ｂｌｕｅ ＥＳ、東洋インキ）１５重
量部帯電制御剤
（ポリアミンＡＦＰ−８．オリエント化学工業）５重量
部
をヘンシシェルミキサにて混合し、次いで２本ロールミ
ルで溶融混練した。冷却後、ロートプレックス粉砕機に
て粗粉砕し、さらにジェットミルにて微粉砕した後、風
力分級して平均粒径２０μｍの青光に着色した磁性キャ
リアを得た。The following ingredients: Styrene-acrylic resin (Haima SBM-600. Sanyo Chemical Industries) 100 parts by weight Fe fine powder (particle size 2/' m + magnetization at IKOe 93e customary u/gt Kanto Denka) 65 parts by weight ε 15 parts by weight of a copper phthalocyanine pigment (Lionol Blue ES, Toyo Ink) and 5 parts by weight of a charge control agent (Polyamine AFP-8, Orient Chemical Industries) were mixed in a Henshi shell mixer, and then melt-kneaded in a two-roll mill. After cooling, the mixture was coarsely pulverized using a Rotoplex pulverizer, further finely pulverized using a jet mill, and then air classified to obtain a blue-colored magnetic carrier having an average particle size of 20 μm.
このキャリアに前糸カラートナーＩ ９ｗ１％を混合し
、得られた現像剤を市販複写機に入れて画像を出したと
ころ、鮮明なカラー画像が得られた。When this carrier was mixed with 9w1% of front thread color toner I and the resulting developer was put into a commercially available copying machine to produce an image, a clear color image was obtained.
さらに、フォトコンドラムの表面電位を１００ Ｖ高く
して画像を出したところ、キャリア付着は多くなったが
、画像の鮮明さは失われなかった。Furthermore, when an image was produced by increasing the surface potential of the photocondrum by 100 V, more carrier adhesion occurred, but the sharpness of the image was not lost.
■土工
前記例１０に記載の手法を繰り返した。但し、本例の場
合、使用する結着樹脂をポリエステル樹脂（ＮＥ２１５
０．花王）とし、顔料をＰｏ１ｙ−ｃｈｌｏｒｏ−銅フ
タロシアニン顔料（Ｌｉｏｎｏｌ Ｇｒｅｅｎ Ｙ−１
０２＋東洋インキ）とした。風力分級後、縁糸に着色し
た磁性キャリアを得た。このキャリアに縁糸カラートナ
ーＩＱｗｔ％を混合し、前記例１０と同様にして画像を
出したところ、キャリア付着がある場合でも鮮明なカラ
ー画像が得られた。(2) Earthwork The procedure described in Example 10 above was repeated. However, in the case of this example, the binder resin used is polyester resin (NE215
0. Kao), and the pigment was Poly-chloro-copper phthalocyanine pigment (Lionol Green Y-1
02+Toyo Ink). After wind classification, a magnetic carrier with colored edge threads was obtained. When this carrier was mixed with edge thread color toner IQwt% and an image was produced in the same manner as in Example 10, a clear color image was obtained even when the carrier was attached.
」二足例１０及び例１１との比較のため、前記例７ （
比較例）を参照されたい。” For comparison with Bipedal Example 10 and Example 11, the above Example 7 (
Please refer to Comparative Example).
■１叉
下記の成分：
スチレン−アクリル樹脂
（ハイマＳＭＢ−６００．三洋化成工業）１００重量部
Ｆｅ微粉末
（粒子径２１’ ｍ ＋ ＩＫＯｅでの磁化９３ｅｍｕ
／ｇ、関東電化）６５重量部アゾ顔料
（Ｌａｋｅ Ｒｅｄ ＣＮ Ｃｏｎｃ、東洋インキ）１
５重量部帯電制御剤
（ポリアミンＡＦＰ−Ｂ、オリエント化学工業）５重量
部
をヘンシシェルミキサにて混合し、次いで２本ロールミ
ルで溶融混練した。冷却後、ロートプレックス粉砕機に
て粗粉砕し、さらにジェットミルにて微粉砕した後、風
力分級して平均粒径２０μｍの赤系に着色した磁性キャ
リアを得た。■1 or the following ingredients: 100 parts by weight of styrene-acrylic resin (Hiima SMB-600. Sanyo Chemical Industries) Fe fine powder (particle size 21' m + magnetization at IKOe 93 emu)
/g, Kanto Denka) 65 parts by weight azo pigment (Lake Red CN Conc, Toyo Ink) 1
5 parts by weight of a charge control agent (polyamine AFP-B, manufactured by Orient Chemical Industries) were mixed in a Henshi shell mixer, and then melt-kneaded in a two-roll mill. After cooling, the mixture was coarsely pulverized using a Rotoplex pulverizer, further finely pulverized using a jet mill, and then air classified to obtain a red colored magnetic carrier having an average particle size of 20 μm.
このキャリアに赤系カラートナーＩＱｗｔ％を混合し、
得られた現像剤を市販複写機に入れて画像を出したとこ
ろ、鮮明なカラー画像が得られた。Mixing red color toner IQwt% with this carrier,
When the obtained developer was placed in a commercially available copying machine and an image was produced, a clear color image was obtained.
さらに、フォトコンドラムの表面電位を１００Ｖ高（し
て画像を出したところ、キャリア付着は多くなったが、
画像の鮮明さは失われなかった。Furthermore, when the surface potential of the photocon drum was increased by 100 V and an image was produced, there was more carrier adhesion, but
Image clarity was not lost.
詐ロー走
前記例１２に記載の手法を繰り返した。但し、本例の場
合、使用する結着樹脂をポリエステル樹脂（ＮＩＥ２１
５０．花王）とし、アゾ系染料（ＤｉｒｅｃｔＢｌｕｅ
２Ｂ＋保土谷化学工業）を用いた。風力分級後、青光
に着色した磁性キャリアを得た。このキャリアに前糸カ
ラートナーＩ ９ｗ１％を混合し、前記例１２と同様に
して画像を出したところ、キャリア付着がある場合でも
鮮明なカラー画像が得られた。False Low Run The method described in Example 12 above was repeated. However, in the case of this example, the binder resin used is polyester resin (NIE21
50. Kao) and azo dyes (Direct Blue).
2B+Hodogaya Chemical Industry) was used. After wind classification, a blue-colored magnetic carrier was obtained. When this carrier was mixed with 9w1% of front thread color toner I and an image was produced in the same manner as in Example 12, a clear color image was obtained even when the carrier was attached.
上記例１２及び例１３との比較のため、前記例２（比較
例）を参照されたい。For comparison with Examples 12 and 13 above, please refer to Example 2 (Comparative Example) above.
〔発明の効果〕
本発明によれば、特に多色電子写真法において、印刷物
の色調の低下を伴なうことなく鮮明なカラー画像を提供
することができる。[Effects of the Invention] According to the present invention, clear color images can be provided without deterioration of the color tone of printed matter, especially in multicolor electrophotography.
Claims (1)
蔽可能な染料又は顔料とを少なくとも樹脂中に含有する
ことを特徴とする磁性カラーキャリア。 ２、前記染料又は顔料がカルボニウム系染料又は顔料で
ある、特許請求の範囲第１項に記載の磁性キャリア。 ３、前記顔料がＴｉＯ＿２系微粉末である、特許請求の
範囲第１項に記載の磁性キャリア。 ４、前記染料がメチン系染料である、特許請求の範囲第
１項に記載の磁性キャリア。 ５、前記染料がキノンイミン系染料である、特許請求の
範囲第１項に記載の磁性キャリア。 ６、前記染料又は顔料がアントラキノン系染料又は顔料
である、特許請求の範囲第１項に記載の磁性キャリア。 ７、前記顔料がキナクリドン系顔料である、特許請求の
範囲第１項に記載の磁性キャリア。 ８、前記顔料がフタロシアニン系顔料である、特許請求
の範囲第１項に記載の磁性キャリア。 ９、前記染料又は顔料がアゾ系染料又は顔料である、特
許請求の範囲第１項に記載の磁性キャリア。 １０、前記磁性微粉末を３０〜５０重量％の量で、前記
染料又は顔料を５〜２０重量％の量で、それぞれ含有す
る、特許請求の範囲第１項〜第９項のいずれか１項に記
載の磁性キャリア。 １１、前記磁性微粉末がＦｅ微粉末である、特許請求の
範囲第１項〜第１０項のいずれか１項に記載の磁性キャ
リア。[Scope of Claims] 1. A magnetic color carrier characterized in that at least a resin contains a magnetic fine powder and a dye or pigment capable of concealing the color of the magnetic fine powder in the carrier. 2. The magnetic carrier according to claim 1, wherein the dye or pigment is a carbonium dye or pigment. 3. The magnetic carrier according to claim 1, wherein the pigment is a TiO_2-based fine powder. 4. The magnetic carrier according to claim 1, wherein the dye is a methine dye. 5. The magnetic carrier according to claim 1, wherein the dye is a quinone imine dye. 6. The magnetic carrier according to claim 1, wherein the dye or pigment is an anthraquinone dye or pigment. 7. The magnetic carrier according to claim 1, wherein the pigment is a quinacridone pigment. 8. The magnetic carrier according to claim 1, wherein the pigment is a phthalocyanine pigment. 9. The magnetic carrier according to claim 1, wherein the dye or pigment is an azo dye or pigment. 10. Any one of claims 1 to 9, which contains the magnetic fine powder in an amount of 30 to 50% by weight and the dye or pigment in an amount of 5 to 20% by weight, respectively. The magnetic carrier described in . 11. The magnetic carrier according to any one of claims 1 to 10, wherein the magnetic fine powder is Fe fine powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61242081A JPS6396666A (en) | 1986-10-14 | 1986-10-14 | Magnetic color carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61242081A JPS6396666A (en) | 1986-10-14 | 1986-10-14 | Magnetic color carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6396666A true JPS6396666A (en) | 1988-04-27 |
Family
ID=17084003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61242081A Pending JPS6396666A (en) | 1986-10-14 | 1986-10-14 | Magnetic color carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6396666A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0315076A (en) * | 1989-06-13 | 1991-01-23 | Mita Ind Co Ltd | Photosensitive toner |
| JPH03168756A (en) * | 1989-11-29 | 1991-07-22 | Mita Ind Co Ltd | Black photoconductive toner provided with photosensitivity on wavelength region of semiconductor laser |
| JPH03168757A (en) * | 1989-11-29 | 1991-07-22 | Mita Ind Co Ltd | Black photoconductive toner provided with photosensitivity on wavelength region of semiconductor laser |
| JPH03168758A (en) * | 1989-11-29 | 1991-07-22 | Mita Ind Co Ltd | Black photoconductive toner provided with photosensitivity on wavelength region of semiconductor laser |
-
1986
- 1986-10-14 JP JP61242081A patent/JPS6396666A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0315076A (en) * | 1989-06-13 | 1991-01-23 | Mita Ind Co Ltd | Photosensitive toner |
| JPH03168756A (en) * | 1989-11-29 | 1991-07-22 | Mita Ind Co Ltd | Black photoconductive toner provided with photosensitivity on wavelength region of semiconductor laser |
| JPH03168757A (en) * | 1989-11-29 | 1991-07-22 | Mita Ind Co Ltd | Black photoconductive toner provided with photosensitivity on wavelength region of semiconductor laser |
| JPH03168758A (en) * | 1989-11-29 | 1991-07-22 | Mita Ind Co Ltd | Black photoconductive toner provided with photosensitivity on wavelength region of semiconductor laser |
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