JPH0214829A - Red magnetic powder and production thereof - Google Patents
Red magnetic powder and production thereofInfo
- Publication number
- JPH0214829A JPH0214829A JP63164734A JP16473488A JPH0214829A JP H0214829 A JPH0214829 A JP H0214829A JP 63164734 A JP63164734 A JP 63164734A JP 16473488 A JP16473488 A JP 16473488A JP H0214829 A JPH0214829 A JP H0214829A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic powder
- zinc
- iron
- magnesium
- oxide
- 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
- 239000006247 magnetic powder Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 229910052742 iron Inorganic materials 0.000 claims abstract description 20
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 15
- 239000011777 magnesium Substances 0.000 claims abstract description 15
- 239000011701 zinc Substances 0.000 claims abstract description 15
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 15
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 6
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 5
- 238000010304 firing Methods 0.000 claims description 12
- 150000002736 metal compounds Chemical class 0.000 claims description 8
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- 229910017053 inorganic salt Inorganic materials 0.000 abstract description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract description 16
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 13
- 235000012245 magnesium oxide Nutrition 0.000 abstract description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract description 9
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract description 9
- 235000014692 zinc oxide Nutrition 0.000 abstract description 9
- 239000000395 magnesium oxide Substances 0.000 abstract description 8
- 239000011787 zinc oxide Substances 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000001354 calcination Methods 0.000 abstract 2
- 239000000976 ink Substances 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 239000011369 resultant mixture Substances 0.000 abstract 1
- 230000005291 magnetic effect Effects 0.000 description 21
- 150000003839 salts Chemical class 0.000 description 13
- 230000005415 magnetization Effects 0.000 description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 235000010755 mineral Nutrition 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 238000000137 annealing Methods 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 235000013980 iron oxide Nutrition 0.000 description 4
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 4
- 239000001095 magnesium carbonate Substances 0.000 description 4
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 4
- 229910052596 spinel Inorganic materials 0.000 description 4
- 239000011029 spinel Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- UOURRHZRLGCVDA-UHFFFAOYSA-D pentazinc;dicarbonate;hexahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Zn+2].[Zn+2].[Zn+2].[Zn+2].[Zn+2].[O-]C([O-])=O.[O-]C([O-])=O UOURRHZRLGCVDA-UHFFFAOYSA-D 0.000 description 3
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- RWVJJXGITTUMQP-UHFFFAOYSA-N [O--].[O--].[O--].[Fe++].[Fe++].[Fe++] Chemical compound [O--].[O--].[O--].[Fe++].[Fe++].[Fe++] RWVJJXGITTUMQP-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- LITYQKYYGUGQLY-UHFFFAOYSA-N iron nitric acid Chemical compound [Fe].O[N+]([O-])=O LITYQKYYGUGQLY-UHFFFAOYSA-N 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- HEJPGFRXUXOTGM-UHFFFAOYSA-K iron(3+);triiodide Chemical compound [Fe+3].[I-].[I-].[I-] HEJPGFRXUXOTGM-UHFFFAOYSA-K 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- FZGIHSNZYGFUGM-UHFFFAOYSA-L iron(ii) fluoride Chemical compound [F-].[F-].[Fe+2] FZGIHSNZYGFUGM-UHFFFAOYSA-L 0.000 description 1
- SHXXPRJOPFJRHA-UHFFFAOYSA-K iron(iii) fluoride Chemical compound F[Fe](F)F SHXXPRJOPFJRHA-UHFFFAOYSA-K 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000001062 red colorant Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- FEONEKOZSGPOFN-UHFFFAOYSA-K tribromoiron Chemical compound Br[Fe](Br)Br FEONEKOZSGPOFN-UHFFFAOYSA-K 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical class [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Hard Magnetic Materials (AREA)
- Soft Magnetic Materials (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
［産業］一の利用分野］
本発明は赤色系磁性粉体およびその製造方法に関し、さ
らに詳しくは、インクあるいはカラートナーなどの原料
として有用な赤色系磁性粉体およびその製造方法に関す
る。[Detailed Description of the Invention] [Industry] First Field of Application] The present invention relates to a red magnetic powder and a method for producing the same, and more particularly, to a red magnetic powder useful as a raw material for ink or color toner, and its production method. Regarding the manufacturing method.
［従来の技術］
有色の磁性粉体は主として磁性インクあるいはコピー用
磁性カラートナーなどに使用されている。[Prior Art] Colored magnetic powder is mainly used in magnetic ink or magnetic color toner for copying.
なかでも、磁性カラートナーは、トナー自身に磁性かあ
るので，非磁性のトナーとは異なって１〜ナーをＪ９！
擦帯電させる必要かない．したかって、そのような磁性
カラートナーを使用する複写機は、磁気ブラシ等の摩擦
帯電装置を省略することができて、小型にすることがで
きる。Among them, magnetic color toner is different from non-magnetic toner because the toner itself is magnetic.
There is no need for triboelectric charging. Therefore, a copying machine using such magnetic color toner can omit a frictional charging device such as a magnetic brush, and can be made smaller.
コピー用磁性カラートナーに関し、多色の磁性カラート
ナーの製造方法が、特公昭６０−２６３５０号公報およ
び特公昭６０−２５８５６１号公報に記載されている。Regarding magnetic color toners for copying, methods for producing multicolor magnetic color toners are described in Japanese Patent Publication No. 60-26350 and Japanese Patent Publication No. 60-258561.
前記公報によると、■黒あるいは褐色の磁性粉体の表面
を顔料などの着色剤で被覆することにより磁性カラート
ナーを製造すること、■着色剤を用いることなしに磁性
粉体自身をカラートナーとして利用することが記載され
ている。According to the above-mentioned publication, 1) producing a magnetic color toner by coating the surface of black or brown magnetic powder with a coloring agent such as a pigment; 2) producing a magnetic color toner by using the magnetic powder itself as a color toner without using a coloring agent; It is stated to be used.
［本発明が解決しようとする問題点］
前記■の方法においては、黒あるいは褐色の磁性粉体自
身の色を隠蔽するために、磁性粉体の槍に比べて大量の
着色剤を使用しなければならない、したがって磁性カラ
ートナーとしての本来の特徴〒ある磁化を弱める結果と
なる。[Problems to be Solved by the Present Invention] In the method (2) above, in order to hide the color of the black or brown magnetic powder itself, a large amount of coloring agent must be used compared to the magnetic powder spear. Therefore, the original characteristics of a magnetic color toner result in a certain magnetization being weakened.
一方、前記■の方法においては黒色の磁性粉体を用いた
ものは実用化されているが、その方法は、磁性粉体自身
の色をもってカラートナーとしているに過ぎない、磁性
粉体自身の色がたとえば赤である磁性粉体は未だ知られ
ていないので１着色剤を使ｆｆＪ Ｌないで、赤色系を
呈する磁性カラートナーは無かった。On the other hand, in the method (2) above, a method using black magnetic powder has been put into practical use, but that method only uses the color of the magnetic powder itself as a color toner. For example, since a magnetic powder with a red color is not yet known, there has been no magnetic color toner that exhibits a red color without using a coloring agent.
［前記課題を解決するための手段］
前記課題を解決するために本発明者が鋭意研究した結果
、特定の原料を特定の条件により焼成して得られた特定
組成の磁性粉体は、それ自身が赤色を呈していて、大量
の赤色の着色剤を使用しなくても、赤色系を呈する赤色
系磁性粉体が得られることを見出して本発明に到達した
。[Means for Solving the Problems] As a result of intensive research by the present inventors to solve the problems described above, it has been found that magnetic powder of a specific composition obtained by firing specific raw materials under specific conditions is The present invention was achieved by discovering that a red magnetic powder exhibiting a red color can be obtained without using a large amount of a red colorant.
前記問題点を解決するため請求項１に記載の発ＩＪＪは
、強磁性金Ｊｉ！酸化物においてその１！１戊が次の組
成式
％式％）
［ただし１式中のＸ、ｙおよび２は以下の関係を満たす
。In order to solve the above problem, the IJJ according to claim 1 is made of ferromagnetic gold Ji! In an oxide, the 1:1 value is the following composition formula (% formula %) [However, X, y, and 2 in formula 1 satisfy the following relationship.
０．２≦Ｘ≦１．０ 、 ０．９≦２≦１．１゜ｘ＋ｙ
＝ １］
を満足することを特徴とする赤色系磁性粉体であ請求項
２に記載の発明は、マグネシウムの無機塩および／また
はマグネシウム酸化物と、亜鉛の無機塩および／または
亜鉛酸化物と、鉄の無機塩および／また鉄酸化物とを、
荊記各金属化合物の原子比（マグネシウム：亜鉛：鉄）
か（ｘ：ｙ；２）［たたし、ｘ、ｙおよび２は以下の関
係な満たす。0.2≦X≦1.0, 0.9≦2≦1.1゜x+y
= 1] The invention according to claim 2 is a red magnetic powder characterized by satisfying the following: an inorganic salt of magnesium and/or magnesium oxide; an inorganic salt of zinc and/or zinc oxide; , an inorganic salt of iron and/or an iron oxide,
Atomic ratio of each metal compound (magnesium: zinc: iron)
(x:y;2) [T, x, y and 2 satisfy the following relationship.
０．２ ≦Ｘ≦１０ 、 ０．９ ≦２≦１．１
。0.2≦X≦10, 0.9≦2≦1.1
.
ｘ＋ｙ＝１］
となるように配合し、得られる混合物を還元雰囲気中で
温度ｉ、ｔｏｏないし１，３００℃で焼成することを特
徴とする請求
体の製造方法である。x+y=1], and the resulting mixture is fired in a reducing atmosphere at a temperature of i, too to 1,300°C.
本発明で注目すべきことは，従来の磁性トナーに用いら
れている磁性粉体はいずれも褐色あるいは黒色の磁性粉
体の表面に顔料を付着あるい被覆して赤色としていたが
，本発明においては，従来の磁性粉体とは異なり、磁性
粉体それ自身が赤色を呈しており、このような特異な磁
性粉体は金属酸化物の新規な組成により得られたもので
あり、またこのような新規な磁性粉体は，複数種の金属
酸化物を特定の条件で製造することにより初めて得られ
たのである。What should be noted in the present invention is that all magnetic powders used in conventional magnetic toners are colored red by adhering or coating the surface of brown or black magnetic powder, but in the present invention, Unlike conventional magnetic powder, the magnetic powder itself exhibits a red color, and this unique magnetic powder was obtained by a new composition of metal oxides. This novel magnetic powder was first obtained by manufacturing multiple types of metal oxides under specific conditions.
以下の本発明の赤色系磁性粉体の製造方法について説明
する。The method for producing the red magnetic powder of the present invention will be described below.
本発明の赤色系磁性粉体を製造する際の原料として，マ
グネシウムの無機塩および／またはマグネシウムの酸化
物と、亜鉛の無機塩および／または亜鉛の酸化物と、鉄
の無機塩および／または鉄の酸化物とを使用する。As raw materials for producing the red magnetic powder of the present invention, an inorganic salt of magnesium and/or an oxide of magnesium, an inorganic salt of zinc and/or an oxide of zinc, an inorganic salt of iron and/or an iron using oxides of
マグネシウムの無機塩として、塩基性炭酸マグネシウム
．＊酸マグネシウム，１１１化マグネシウム等を挙げる
ことができ，マグネシウムの酸化物として酸化マグネシ
ウム、水酸化マグネシウム等を挙げることができる。Basic magnesium carbonate is an inorganic salt of magnesium. * Magnesium oxides, magnesium 111 oxide, etc. can be mentioned, and examples of magnesium oxides include magnesium oxide, magnesium hydroxide, etc.
その外，他の金属を含まない錯塩や有機塩も使川【１ｆ
能である。In addition, complex salts and organic salts that do not contain other metals are also available in Shikawa [1F
It is Noh.
本発明においては、マグネシウムの無機塩を一種単独で
使用しても良いし、また、複数種のマグネシウムの無機
塩あるいは複塩を併用しても良い。さらにマグネシウム
の酸化物をその一種単独で使用しても良いし、またマグ
ネシウムの無ａ塩とマグネシウム酸化物とを併用しても
良い。In the present invention, one type of magnesium inorganic salt may be used alone, or a plurality of types of magnesium inorganic salts or double salts may be used in combination. Further, one type of magnesium oxide may be used alone, or a magnesium oxide and an atom-free salt of magnesium may be used in combination.
本発明において好ましいのは、塩基性炭酸マグネシウム
および酸化マグネシウムである。Preferred in the present invention are basic magnesium carbonate and magnesium oxide.
亜鉛の無機塩としては、塩基性炭酸亜鉛、硫酸加鉛、塩
化斬鉛、硫化亜鉛、硝酸亜鉛等を挙げることができる。Examples of inorganic salts of zinc include basic zinc carbonate, lead sulfate, zinc chloride, zinc sulfide, zinc nitrate, and the like.
亜鉛の無機塩は無水塩であっても含水塩であっても良い
、また亜鉛の酸化物として酸化亜鉛、水酸化亜鉛を挙げ
ることができる。The inorganic salt of zinc may be an anhydrous salt or a hydrated salt, and examples of zinc oxides include zinc oxide and zinc hydroxide.
本発明においては、亜鉛の無機塩を一種単独で使用して
も良いし、また、複数種の亜鉛の無機塩あるいは亜鉛の
複塩を併用しても良い、さらに亜鉛の酸化物をその一種
単独で使用しても良いし、また亜鉛の無機塩と酸化亜鉛
とを併用しても良い。In the present invention, one type of zinc inorganic salt may be used alone, or multiple types of zinc inorganic salts or zinc double salts may be used in combination, and zinc oxide may be used alone. Alternatively, an inorganic zinc salt and zinc oxide may be used together.
本発明において好ましいのは、１１！７．ｉｉ性炭酸亜
鉛および酸化亜鉛である。In the present invention, 11!7. ii zinc carbonate and zinc oxide.
鉄の無機塩としては、硫酸第２鉄、フッ化第１鉄、フッ
化第２鉄、塩化第２鉄、臭化第２鉄、ヨウ化第２鉄、硝
酸：５２鉄、水酸化第２鉄、等を挙げることができる。Inorganic salts of iron include ferric sulfate, ferrous fluoride, ferric fluoride, ferric chloride, ferric bromide, ferric iodide, 52 iron nitric acid, and ferric hydroxide. Iron, etc. can be mentioned.
また、鉄の酸化物としては。Also, as an oxide of iron.
亜酸化鉄、酸化第２鉄、四三酸化鉄等を挙げることがで
きる。Examples include iron suboxide, ferric oxide, and triiron tetroxide.
本発明においては、鉄の無機塩を一種単独で使用しても
良いし、また、複数種の鉄の無機塩あるいは鉄の複塩を
併用しても良い、さらに鉄の酸化物をその一種単独で使
用しても良いし、また鉄の無機塩と鉄の酸化物とを併用
しても良い。In the present invention, one type of iron inorganic salt may be used alone, or multiple types of iron inorganic salts or iron double salts may be used in combination, and iron oxides may be used alone. Alternatively, an inorganic iron salt and an oxide of iron may be used together.
本発明において好ましいのは、酸化第２鉄である。Preferred in the present invention is ferric oxide.
本発明の方法においては、マグネシウムの無機塩および
／またはマグネシウム酸化物と、亜鉛の無機塩および／
または亜鉛酸化物と、鉄の無機塩および／また鉄酸化物
とを、前記各金属化合物の原子比（マグネシウム：亜鉛
：鉄）が（ｘ ： ｙ ；２）［ただし、ｘ、ｙおよび
２は以ｆの関係を満たす。In the method of the present invention, an inorganic salt of magnesium and/or magnesium oxide, an inorganic salt of zinc and/or
Alternatively, zinc oxide, iron inorganic salt and/or iron oxide may be combined in such a manner that the atomic ratio (magnesium:zinc:iron) of each metal compound is (x:y;2) [where x, y and 2 are The following relationship f is satisfied.
０．２≦Ｘ≦１．Ｑ 、 ０．９≦２≦１．１゜ｘ＋
ｙ＝１］
になるように混合し、要すれば前記化合物を粉砕してか
ら混合する。0.2≦X≦1. Q, 0.9≦2≦1.1゜x+
y=1] and, if necessary, grind the above-mentioned compound before mixing.
前記各金属化合物の原子比が前記範囲を外れると４本発
明の磁性粉体を得ることができない。If the atomic ratio of each of the metal compounds is outside the above range, the magnetic powder of the present invention cannot be obtained.
次いで、得られる混合物を焼成する。The resulting mixture is then calcined.
焼成温度は１通常、ｉ 、ｏｏｏ〜ｌ 、４００℃であ
り。The firing temperature is usually i, ooo to l, 400°C.
好ましくは１，１００〜１，３００℃である。Preferably it is 1,100 to 1,300°C.
焼成温度が１．０００℃未満であると、未反応の金属化
合物が残留し、たとえば未反応の鉄化合物が法王酸化鉄
であったり、化学量論的組成によい鉄不足のスピネルが
生じたりすると、得られる焼成物が黄褐色となり、
１，４００℃を超えると磁性粉体の色が黒色となること
がある。If the firing temperature is less than 1.000°C, unreacted metal compounds may remain, for example, unreacted iron compounds may be Pope iron oxide, or iron-deficient spinel with a good stoichiometric composition may occur. , the resulting fired product becomes yellowish brown,
If the temperature exceeds 1,400°C, the color of the magnetic powder may turn black.
焼成時間は５通常、１〜５時間であり、好ましくは２〜
４時間である。The firing time is usually 1 to 5 hours, preferably 2 to 5 hours.
It is 4 hours.
焼成時間が１時間未満であると未反応の金属化合物が残
存し、たとえば未反応の金属化合物が二三酸化鉄であっ
たり、化学量論的組成によい鉄不足のスピネルが生じた
りす、ると、得られる焼成物の色が黄褐色になることが
ある。If the firing time is less than 1 hour, unreacted metal compounds may remain, for example, the unreacted metal compounds may be tri-iron oxide, or an iron-deficient spinel with a good stoichiometric composition may be produced. The color of the baked product may turn yellowish brown.
本発明の方法においては、前記焼成によりそれ自身の色
が赤色である本発明の磁性粉体が得られる。In the method of the present invention, the firing process yields the magnetic powder of the present invention which is red in color.
得られる磁性粉体は、組成式
％式％）
［ただし、式中のｘ、ｙおよび２は以下の関係を満たす
。The obtained magnetic powder has a composition formula (% formula %) [where x, y and 2 in the formula satisfy the following relationship.
０．２≦Ｘ≦１．０ 、 ０．９≦２≦１３１゜ｘ＋ｙ
＝１］
を満足する。0.2≦X≦1.0, 0.9≦2≦131゜x+y
=1] is satisfied.
本発明の磁性粉体は、温度変化に対して、キュリー点が
低いと言う特長があり、また外部磁場に対しても飽和磁
化に近い磁化が得られると言う点で従来の磁性粉体と異
なるものである。The magnetic powder of the present invention is different from conventional magnetic powders in that it has a low Curie point with respect to temperature changes, and can obtain magnetization close to saturation magnetization even with external magnetic fields. It is something.
本発明の方法においては、焼成後、前記焼成物を焼鈍す
るのが好ましい、焼鈍処理によって、得られる磁性粉体
は、より一層赤色を呈するようになるからである。なお
、焼鈍後直ちに前記焼成物を焼鈍しても良く、また、焼
成後に前記焼成物を一旦冷却してから焼鈍しても良い、
いずれが良いかは、原料となる金属化合物の種類や焼成
条件等により相違して一層に決定することができないけ
れども、焼成物を一旦冷却すると好ましい結果を得るこ
とができる場合がある。In the method of the present invention, it is preferable to anneal the fired product after firing, because the annealing treatment causes the obtained magnetic powder to exhibit an even more red color. Note that the fired product may be annealed immediately after annealing, or the fired product may be cooled once after firing and then annealed.
Although it is difficult to determine which one is better because it depends on the type of metal compound used as a raw material, firing conditions, etc., it may be possible to obtain a preferable result by once cooling the fired product.
焼鈍処理は、前記焼成物を４００〜８００℃、特に５０
０〜６００℃に４〜２０時間、特に５〜１０時間維持す
る。The annealing treatment is performed by heating the fired product at 400 to 800°C, especially at 50°C.
Maintain at 0-600°C for 4-20 hours, especially 5-10 hours.
焼鈍処理の際の雰囲気については特に制限がなく、たと
えば、空気中で電気炉により低温焼鈍することができる
。There is no particular restriction on the atmosphere during the annealing treatment, and for example, low-temperature annealing can be performed in air in an electric furnace.
本発明の方法により得られる赤色系磁性粉体は、インク
あるいはカラートナーなどの原料として有用である。The red magnetic powder obtained by the method of the present invention is useful as a raw material for ink or color toner.
［実施例］
（実施例１）
乾式法により強磁性金属酸化物を以下のようにして製造
した。[Example] (Example 1) A ferromagnetic metal oxide was produced by a dry method as follows.
すなわち、特級試薬の塩基性炭酸マグネシウム０．７モ
ルと１′ｉ！基性炭酸亜鉛０．３モルと酸化第２鉄１．
０モルとを混合した。得られた混合物を還元性雰囲気下
に１．２００℃で３時間かけて電気炉で焼成した。焼成
後、焼成物を蒸溜水に投入して急冷した。That is, 0.7 mol of basic magnesium carbonate, a special grade reagent, and 1'i! Basic zinc carbonate 0.3 mol and ferric oxide 1.
0 mol. The resulting mixture was fired in an electric furnace at 1.200° C. for 3 hours under a reducing atmosphere. After firing, the fired product was poured into distilled water and rapidly cooled.
焼ＪＪ！後の産物は、たとえば、振動ミルにて微粉砕し
、粒径を１ｇｍ以下にすると、粉砕後の色は暗褐色ｆあ
った。Grilled JJ! The resulting product was pulverized, for example, in a vibrating mill to a particle size of 1 gm or less, and the color after pulverization was dark brown.
得られた粉末はこれを２Ｘ線回折法により鉱物組成分析
した結果、検出鉱物はスピネル鉱物のみであり、また原
子吸光分析法により化学組成分析したところ、以下の化
学組成を有するフェライトであった。Mineral composition analysis of the obtained powder by 2X-ray diffraction revealed that the only detected mineral was spinel mineral, and chemical composition analysis by atomic absorption spectrometry revealed that it was ferrite having the following chemical composition.
Ｍｇｏ、ｚ Ｚｎｏ、３Ｆｅ２．ｏ ＯＪ、０このフェ
ライトのＣＩＥ標準表色系（ＪＩＳＺ８７２２）、キュ
リー点温度および８，０００ ［Ｏｅ］における磁化
を第１表に示す。Mgo, z Zno, 3Fe2. o OJ, 0 Table 1 shows the CIE standard color system (JISZ8722), Curie point temperature, and magnetization at 8,000 [Oe] of this ferrite.
このフェライトの磁化測定結果として、温度−磁化曲線
および磁場−磁化曲線を第１図および第２Ｖ！Ｊとして
示す。As the magnetization measurement results of this ferrite, the temperature-magnetization curve and the magnetic field-magnetization curve are shown in Figures 1 and 2V! Denoted as J.
（実施例２）
乾式法により強磁性金属酸化物を以下のようにして製造
した。(Example 2) A ferromagnetic metal oxide was produced by a dry method as follows.
すなわち、特級試薬の塩基性炭酸マグネシウム０．７モ
ルと塩基性炭酸亜鉛０．３モルと酸化第２鉄１．０モル
とを混合した。得られた混合物を還元性雰囲気下に１．
２００℃で３時間かけて電気炉で焼成した。焼成後、焼
成物を粉砕し、粉砕物をさらに６００℃で焼鈍後炉冷し
た。That is, 0.7 mol of basic magnesium carbonate, 0.3 mol of basic zinc carbonate, and 1.0 mol of ferric oxide, which are special grade reagents, were mixed. The resulting mixture was heated under a reducing atmosphere 1.
It was fired in an electric furnace at 200°C for 3 hours. After firing, the fired product was pulverized, and the pulverized product was further annealed at 600° C. and then cooled in a furnace.
焼成後の産物は、たとえば振動ミルにて微粉砕し、粒径
を１μｍ以下にすると、粉砕後の色は褐色を帯びた赤色
であり、実施例１の場合に比べてより赤色である（必要
であれば、日鉄鉱業株式会社製エルボ−ジェットにより
所望の粒度に分級することも可能である。）
得られた粉末はこれを実施例１と同様に、ＸＭ回折法に
より鉱物組成分析した結果、検出鉱物はスピネル鉱物の
みであり、また原子吸光分析法により化学組成分析した
ところ、以下の化学組成を有するフェライトであった。The fired product is finely pulverized with a vibration mill, for example, to a particle size of 1 μm or less, and the color after pulverization is brownish red, which is more red than in Example 1 (necessary). (If so, it is also possible to classify it to the desired particle size using Elbow Jet manufactured by Nippon Steel Mining Co., Ltd.) The obtained powder was subjected to mineral composition analysis using the XM diffraction method in the same manner as in Example 1. The only mineral detected was spinel mineral, and chemical composition analysis by atomic absorption spectrometry revealed that it was ferrite with the following chemical composition.
Ｍｇｏ２Ｚｎｏ３Ｆｅ２．ａ Ｏｓ、。Mgo2Zno3Fe2. a Os,.
このフェライトのＣＩＥ標準表色系（ＪＩＳＺ８７２２
）、キュリー点温度および８，０００ ［Ｏｅ］にお
ける磁化の値を第１表に示す。CIE standard color system (JISZ8722
), Curie point temperature, and magnetization values at 8,000 [Oe] are shown in Table 1.
このフェライトの磁化測定結果として、温度−磁化曲線
および磁場−磁化曲線を第３図および第４図として示す
。As the magnetization measurement results of this ferrite, temperature-magnetization curves and magnetic field-magnetization curves are shown in FIGS. 3 and 4.
第１表
［発明の効果］
請求項１に記載の発明によると、それ自体で赤色系であ
り、磁気特定についてもキュリー点が低いと言う４￥長
があり、また外部磁場に対しても飽和磁化に近い磁化を
得ることができると言う点で従来の磁性粉と異なった赤
色系磁性粉体を提供することができる。Table 1 [Effects of the Invention] According to the invention described in claim 1, there is a red color by itself, and there is a length of 4 yen which is said to have a low Curie point in terms of magnetic identification, and it is also saturated with external magnetic fields. It is possible to provide a red-colored magnetic powder that is different from conventional magnetic powders in that it can obtain magnetization close to magnetization.
請求項２に記載の発明によると、赤色系の磁性粉体を筒
中に製造することができる。According to the second aspect of the invention, red magnetic powder can be produced in the cylinder.
また、請求項３に記載の発明によると請求項２に記載の
製造方法により得られる磁性粉体よりも磁性粉体を筒中
に製造することがで鼻る。Furthermore, according to the third aspect of the invention, it is possible to manufacture more magnetic powder in the cylinder than the magnetic powder obtained by the manufacturing method according to the second aspect.
第１図は実施例１において得られた磁性粉体についての
温度−磁化曲線を示すグラフ、第２図は＋ｉ７ｉ記実施
例１において（１）られた磁性粉体についての磁場−磁
化曲線を示すグラフ、第３図は実施例２において得られ
た磁性粉体についての温度−磁化曲線を示すグラフ、お
よび第４図は前記実施例２において得られた磁性粉体に
ついての磁場−磁化曲線を示すグラフである。FIG. 1 is a graph showing the temperature-magnetization curve for the magnetic powder obtained in Example 1, and FIG. 2 is a graph showing the magnetic field-magnetization curve for the magnetic powder obtained in (1) in Example 1 described in +i7i. Graph, FIG. 3 is a graph showing a temperature-magnetization curve for the magnetic powder obtained in Example 2, and FIG. 4 is a graph showing a magnetic field-magnetization curve for the magnetic powder obtained in Example 2. It is a graph.
Claims (1)
し、式中のｘ，ｙおよびｚは以下の関係を満たす。 ０．２≦ｘ≦１．０，０．９≦ｚ≦１．１，ｘ＋ｙ＝１
］ を満足することを特徴とする赤色系磁性粉体。 （２）マグネシウムの無機塩および／またはマグネシウ
ム酸化物と、亜鉛の無機塩および／または亜鉛酸化物と
、鉄の無機塩および／また鉄酸化物とを、前記各金属化
合物の原子比（マグネシウム：亜鉛：鉄）が（ｘ：ｙ；
ｚ）［ただし、ｘ，ｙおよびｚは以下の関係を満たす。 ０．２≦ｘ≦１．０，０．９≦ｚ≦１．１，ｘ＋ｙ＝１
］ となるように混合し、得られる混合物を還元雰囲気中て
温度１，１００ないし１，３００℃で焼成することを特
徴とする前記請求項１に記載の赤色系磁性粉体の製造方
法。 （３）前記請求項２における焼成後、得られる焼成物を
さらに４００ないし８００℃で焼鈍することを特徴とす
る前記請求項１に記載の赤色系磁性粉体の製造方法。[Claims] (1) A ferromagnetic metal oxide whose composition has the following compositional formula (MgO)x(ZnO)y(Fe_2O_3)z [where x, y and z in the formula have the following relationship: Fulfill. 0.2≦x≦1.0, 0.9≦z≦1.1, x+y=1
] A red magnetic powder characterized by satisfying the following. (2) The atomic ratio of each metal compound (magnesium: Zinc: iron) is (x: y;
z) [However, x, y and z satisfy the following relationship. 0.2≦x≦1.0, 0.9≦z≦1.1, x+y=1
] The method for producing red magnetic powder according to claim 1, characterized in that the resulting mixture is fired at a temperature of 1,100 to 1,300° C. in a reducing atmosphere. (3) The method for producing a red magnetic powder according to claim 1, characterized in that after the firing in claim 2, the obtained fired product is further annealed at 400 to 800°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63164734A JP2789564B2 (en) | 1988-07-01 | 1988-07-01 | Red magnetic powder and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63164734A JP2789564B2 (en) | 1988-07-01 | 1988-07-01 | Red magnetic powder and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0214829A true JPH0214829A (en) | 1990-01-18 |
| JP2789564B2 JP2789564B2 (en) | 1998-08-20 |
Family
ID=15798886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63164734A Expired - Fee Related JP2789564B2 (en) | 1988-07-01 | 1988-07-01 | Red magnetic powder and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2789564B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5750609A (en) * | 1995-04-10 | 1998-05-12 | Kyowa Chemical Industry Co., Ltd. | Ultraviolet protective agent |
| JP2005126719A (en) * | 2003-10-24 | 2005-05-19 | Bayer Chemicals Ag | Heat-stable zinc ferrite coloring pigment, its production process and its use |
| CN102448996A (en) * | 2009-04-17 | 2012-05-09 | 萨里纳米系统有限公司 | Material having a low dielectric konstant and method of making the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5224200A (en) * | 1975-08-12 | 1977-02-23 | Dowa Mining Co Ltd | Method for production of spherical ferrite powder |
| JPS61200551A (en) * | 1985-03-01 | 1986-09-05 | Mitsui Mining & Smelting Co Ltd | Electrophotographic developing carrier |
-
1988
- 1988-07-01 JP JP63164734A patent/JP2789564B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5224200A (en) * | 1975-08-12 | 1977-02-23 | Dowa Mining Co Ltd | Method for production of spherical ferrite powder |
| JPS61200551A (en) * | 1985-03-01 | 1986-09-05 | Mitsui Mining & Smelting Co Ltd | Electrophotographic developing carrier |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5750609A (en) * | 1995-04-10 | 1998-05-12 | Kyowa Chemical Industry Co., Ltd. | Ultraviolet protective agent |
| JP2005126719A (en) * | 2003-10-24 | 2005-05-19 | Bayer Chemicals Ag | Heat-stable zinc ferrite coloring pigment, its production process and its use |
| CN102448996A (en) * | 2009-04-17 | 2012-05-09 | 萨里纳米系统有限公司 | Material having a low dielectric konstant and method of making the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2789564B2 (en) | 1998-08-20 |
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