JP2005048114A - Pigment composition for image recording - Google Patents

Pigment composition for image recording Download PDF

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JP2005048114A
JP2005048114A JP2003283377A JP2003283377A JP2005048114A JP 2005048114 A JP2005048114 A JP 2005048114A JP 2003283377 A JP2003283377 A JP 2003283377A JP 2003283377 A JP2003283377 A JP 2003283377A JP 2005048114 A JP2005048114 A JP 2005048114A
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pigment
parts
group
image recording
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Setsuo Onda
節男 恩田
Nobuyuki Ikenari
信幸 池成
Kunji Kitamura
勲次 北村
Motoaki Matsushita
元昭 松下
Hidehiro Tamadome
秀広 玉留
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Sanyo Color Works Ltd
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Sanyo Color Works Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a pigment composition for image recording suitable as a coloring agent for image recording having good balance of image reproducibility and image retention property when used for formation of color image. <P>SOLUTION: The pigment composition for image recording comprises a pigment and a pigment derivative represented by general formula (1) or (2) [wherein P is a pigment residue; X is a group selected from CH<SB>2</SB>-NH, NH, CO-NR<SP>3</SP>-M-NR<SP>4</SP>, SO<SB>2</SB>-NR<SP>3</SP>-M-NR<SP>4</SP>, CH<SB>2</SB>-NR<SP>3</SP>-M-NR<SP>4</SP>and CH<SB>2</SB>-NHCOCH<SB>2</SB>-NR<SP>3</SP>-M-NR<SP>4</SP>;Y is a group selected from an ethylene group, phenylene group and naphthylene group; M is a 1-20C alkylene group, alkenylene group or arylene group; R<SP>1</SP>and R<SP>2</SP>are each independently an alkyl group or a heterocyclic ring; R<SP>3</SP>and R<SP>4</SP>are each independently a hydrogen atom or an alkyl group; Z is NH or an oxygen atom; m is an integer of 1-6; n is a numerical value of 0.1-2; A is OH or Z-(CH<SB>2</SB>)<SB>m</SB>-N-R<SP>1</SP>R<SP>2</SP>and B is a phenylene group]. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、画像記録用顔料組成物に関し、更に詳細には、電子写真、静電印刷法、インクジェット方式等のカラー画像形成に用いられる画像記録用顔料組成物に関するものである。   The present invention relates to a pigment composition for image recording, and more particularly to a pigment composition for image recording used for color image formation such as electrophotography, electrostatic printing, and ink jet method.

電子写真、静電印刷法、インクジェット方式等でのカラー画像形成に於いて、品質の良いカラー画像再現性を得るためには、色相、透明性、着色力等の光学的特性や、耐光性、耐熱性、耐溶剤性などの耐久性が着色剤に要求される。そのため、耐久性の点から一般に染料よりも顔料の方が着色剤として好ましく、イエロー色としては、例えば、C.I.pigment Yellow74、同151、同154のようなモノアゾ顔料や、C.I.Pigment Yellow83、同93、同95、同128、同155、同180のようなジスアゾ顔料又は縮合系アゾ顔料、C.I.Pigment Yellow24、同108、同109、同110、同138、同139、同147、同199、同202のような多環系顔料等が使用されている。また、マゼンタ色としては、例えば、C.I.Pigment Red122、同202、同209、C.I.Pigment Violet19のようなキナクリドン系顔料が使用されている。更に、シアン色としては、例えば、C.I.Pigment Blue15:3、同15:4、アルミ−フタロシアニンのようなフタロシアニン系顔料が主に使用されている。   In color image formation by electrophotography, electrostatic printing method, ink jet method, etc., in order to obtain high-quality color image reproducibility, optical properties such as hue, transparency, coloring power, light resistance, The colorant is required to have durability such as heat resistance and solvent resistance. Therefore, from the viewpoint of durability, a pigment is generally preferred as a colorant rather than a dye. Examples of yellow colors include monoazo pigments such as CI Pigment Yellow 74, 151 and 154, and CI Pigment Yellow 83 and 93. Disazo pigments or condensed azo pigments such as 95, 128, 155, and 180, CI Pigment Yellow 24, 108, 109, 110, 138, 139, 147, 199, 202 Such polycyclic pigments are used. As the magenta color, for example, quinacridone pigments such as C.I. Pigment Red 122, 202, 209 and C.I. Pigment Violet 19 are used. Further, as cyan, for example, C.I. Pigment Blue 15: 3, 15: 4, phthalocyanine pigments such as aluminum-phthalocyanine are mainly used.

しかし、現状では、キナクリドン系、フタロシアニン系で代表されるマゼンタ色、シアン色は、主として、耐光性、耐熱性、耐溶剤性などの耐久性に起因する画像保持性は良好であるが、主として、色相、透明性等の光学的特性に起因する画像再現性は不十分であり、そのバランスの向上が望まれている。   However, at present, the magenta color and cyan color typified by quinacridone and phthalocyanine are mainly good in image retention due to durability such as light resistance, heat resistance and solvent resistance, Image reproducibility due to optical characteristics such as hue and transparency is insufficient, and improvement of the balance is desired.

ここで、イエローについては、本発明者らは、モノアゾ系黄色顔料としては画像再現性、画像保持性が良好で、且つ、安全性に優れたバランスの良い画像記録用黄色顔料組成物を提案している(特許文献1及び特許文献2)。しかし、そのモノアゾ系黄色顔料の手法を多環系など化学構造の異なるイエロー、マゼンタ、シアンの顔料について採ることは不可能であった。
特願2002−248464号公報 特願2002−362517号公報
Here, for yellow, the present inventors have proposed a well-balanced yellow pigment composition for image recording that has good image reproducibility and image retention as a monoazo yellow pigment, and is excellent in safety. (Patent Document 1 and Patent Document 2). However, it was impossible to adopt the monoazo yellow pigment method for yellow, magenta, and cyan pigments having different chemical structures such as polycyclic ones.
Japanese Patent Application No. 2002-248464 Japanese Patent Application No. 2002-362517

本発明は、電子写真、静電印刷法、インクジェット方式等におけるカラー画像形成に於いて、画像再現性と画像保持性が良好なバランスの良い画像記録用着色剤として好適な画像記録用顔料組成物を提供することをその目的とするものである。   The present invention relates to a pigment composition for image recording suitable as a well-balanced image recording colorant having good image reproducibility and image retention in color image formation in electrophotography, electrostatic printing, ink jet method, etc. The purpose is to provide.

本発明の画像記録用顔料組成物は、顔料と、一般式(1)で示される顔料誘導体とを含有していることを特徴とする。   The pigment composition for image recording of the present invention is characterized by containing a pigment and a pigment derivative represented by the general formula (1).

Figure 2005048114
ここで、化1に於いて、Pは顔料の残基を表し、Xは、−CH2−NH−、−NH−、−CO−NR3−M−NR4−、−SO2−NR3−M−NR4−、−CH2−NR3−M−NR4−及び−CH2−NHCOCH2−NR3−M−NR4−から選択される基を表し、R3、R4は各々独立に水素原子又は置換若しくは無置換のアルキル基を表し、Mは、炭素数1〜20で構成された、置換基を有していてもよいアルキレン基、置換基を有していてもよいアルケニレン基、又は置換基を有していてもよいアリーレン基を表し、Yはエチレン基、フェニレン基及びナフチレン基から選択される基であって置換基を含むものであってもよいものを表し、R1、R2は各々独立の置換基若しくは無置換のアルキル基又はR1とR2により構成される複素環であって窒素、酸素若しくは硫黄を含み置換基を含むものであってもよいものを表し、ZはNH又は酸素原子を表し、mは1〜6の整数を表し、nは0.1〜2の数値を表す。
Figure 2005048114
Here, in Chemical Formula 1, P represents a pigment residue, and X represents —CH 2 —NH—, —NH—, —CO—NR 3 —M—NR 4 —, —SO 2 —NR 3. -M-NR 4 -, - CH 2 -NR 3 -M-NR 4 - and -CH 2 -NHCOCH 2 -NR 3 -M- NR 4 - represents a group selected from, R 3, R 4 are each Independently represents a hydrogen atom or a substituted or unsubstituted alkyl group, and M is an alkylene group which may have a substituent and an alkenylene which may have a substituent, each having 1 to 20 carbon atoms. Represents an arylene group which may have a group or a substituent, Y represents a group selected from an ethylene group, a phenylene group and a naphthylene group, which may contain a substituent, and R 1, R 2 is constituted by each independent substituent or unsubstituted alkyl group, or R 1 and R 2 A heterocyclic ring which may contain nitrogen, oxygen or sulfur and may contain a substituent, Z represents NH or an oxygen atom, m represents an integer of 1 to 6, and n represents 0.1 Represents a numerical value of ~ 2.

また、本発明の画像記録用顔料組成物は、顔料と、一般式(2)で示される顔料誘導体とを含有していることを特徴とする。   Moreover, the pigment composition for image recording of the present invention is characterized by containing a pigment and a pigment derivative represented by the general formula (2).

Figure 2005048114
ここで、化2に於いて、Pは顔料の残基を表し、Xは、−CH2−NH−、−NH−、−CO−NR3−M−NR4−、−SO2−NR3−M−NR4−、−CH2−NR3−M−NR4−及び−CH2−NHCOCH2−NR3−M−NR4−から選択される基を表し、R3、R4は各々独立に水素原子又は置換若しくは無置換のアルキル基を表し、Mは、炭素数1〜20で構成された、置換基を有していてもよいアルキレン基、置換基を有していてもよいアルケニレン基、又は置換基を有していてもよいアリーレン基を表し、Bはフェニレン基であって置換基を含むものであってもよいものを表し、AはOH基又はZ−(CH2m−N−R12を表し、ZはNH又は酸素原子を表し、mは1〜6の整数を表し、R1、R2は各々独立の置換基若しくは無置換のアルキル基又はR1とR2により構成される複素環であって窒素、酸素若しくは硫黄を含み置換基を含むものであってもよいものを表し、nは0.1〜2の数値を表す。
Figure 2005048114
Here, in Chemical Formula 2, P represents a pigment residue, and X represents —CH 2 —NH—, —NH—, —CO—NR 3 —M—NR 4 —, —SO 2 —NR 3. -M-NR 4 -, - CH 2 -NR 3 -M-NR 4 - and -CH 2 -NHCOCH 2 -NR 3 -M- NR 4 - represents a group selected from, R 3, R 4 are each Independently represents a hydrogen atom or a substituted or unsubstituted alkyl group, and M is an alkylene group which may have a substituent and an alkenylene which may have a substituent, each having 1 to 20 carbon atoms. Represents an arylene group which may have a group or a substituent, B represents a phenylene group which may contain a substituent, and A represents an OH group or Z— (CH 2 ) m. represents -N-R 1 R 2, Z represents NH or an oxygen atom, m represents an integer of 1~6, R 1, R 2 are each independently of the A substituent or unsubstituted alkyl group or a heterocyclic formed by R 1 and R 2 represents nitrogen, what may include an oxygen or substituents contain sulfur, n 0.1 The numerical value of 2 is represented.

本発明の画像記録用顔料組成物を使用すれば、電子写真、静電印刷法等によるカラー画像形成に際して、画像再現性及び画像保持性が良好でバランスの良い画像記録用イエロー、マゼンタ及びシアン着色剤が得られる。   When the image recording pigment composition of the present invention is used, when a color image is formed by electrophotography, electrostatic printing or the like, the image reproducibility and image retention are good and well-balanced image recording yellow, magenta and cyan coloring An agent is obtained.

以下に、本発明を更に詳細に説明する。本発明の画像記録用顔料組成物に於ける顔料には、モノアゾ顔料、ジスアゾ顔料、縮合系アゾ顔料、多環系顔料等のイエロー系顔料(以下、「Yl系顔料」と略称する。)、キナクリドン系顔料(以下、「Qc系顔料」と略称する。)及びフタロシアニン系顔料(以下、「Pc系顔料」と略称する。)が含まれる。   Hereinafter, the present invention will be described in more detail. Examples of the pigment in the image recording pigment composition of the present invention include yellow pigments (hereinafter abbreviated as “Yl pigments”) such as monoazo pigments, disazo pigments, condensed azo pigments, and polycyclic pigments. Quinacridone pigments (hereinafter abbreviated as “Qc pigments”) and phthalocyanine pigments (hereinafter abbreviated as “Pc pigments”) are included.

本発明の画像記録用顔料組成物に於ける一般式(1)又は一般式(2)で示されるイエロー顔料誘導体(以下、「YS」と略称する。)、マゼンタ顔料誘導体(以下、「MS」と略称する。)及びシアン顔料誘導体(以下、「CS」と略称する。)は、次のようにして合成することができる。   In the pigment composition for image recording of the present invention, a yellow pigment derivative (hereinafter abbreviated as “YS”) represented by the general formula (1) or (2), a magenta pigment derivative (hereinafter “MS”). And a cyan pigment derivative (hereinafter abbreviated as “CS”) can be synthesized as follows.

一般式(1)又は一般式(2)における連結基−X−が、例えば、−CH2−NH−、−NH−又は−SO2−NH−(CH22−NH−のような構造であれば、先ず、Yl系顔料、Qc系顔料又はPc系顔料に於ける残基Pに、−CH2−NH2、−NH2又は−SO2−NH−(CH22−NH2のようにNH2基を公知の方法で導入して合成した中間体と、別にカルボキシル基、スルホン基、アミノ基等の極性基を導入して合成した塩化シアヌル化合物とを公知の方法で縮合反応させることにより得ることができる。 The linking group —X— in the general formula (1) or the general formula (2) is, for example, a structure such as —CH 2 —NH—, —NH—, or —SO 2 —NH— (CH 2 ) 2 —NH—. If so, first, the residue P in the Yl pigment, Qc pigment or Pc pigment is substituted with —CH 2 —NH 2 , —NH 2 or —SO 2 —NH— (CH 2 ) 2 —NH 2. Intermediates synthesized by introducing a NH 2 group by a known method as described above and cyanuric chloride compounds synthesized by introducing a polar group such as a carboxyl group, a sulfone group, and an amino group separately by a known method Can be obtained.

なお、塩化シアヌルにカルボキシル基、スルホン基、アミノ基等の極性基を導入する代表的な方法は、一般式(1)又は一般式(2)における−NH−B−COOH、−NH−Y−SO3H又は−Z−(CH2m−N−R12で示される極性基含有アミン及び/又はアルコール1.0〜2.0モルと塩化シアヌル1.0モルとを公知の方法で反応させることにより得る方法である。この方法以外にも種々の調製法を使用することが可能である。 Note that typical methods for introducing a polar group such as a carboxyl group, a sulfone group, and an amino group into cyanuric chloride include —NH—B—COOH and —NH—Y— in the general formula (1) or the general formula (2). A known method comprising a polar group-containing amine represented by SO 3 H or —Z— (CH 2 ) m —N—R 1 R 2 and / or 1.0 to 2.0 mol of alcohol and 1.0 mol of cyanuric chloride. It is the method obtained by making it react with. In addition to this method, various preparation methods can be used.

ここで、−NH−B−COOH、−NH−Y−SO3H又は−Z−(CH2m−N−R12で示される具体的なアミン、アルコールとして、次のようなものが例示される。即ち、−NH−B−COOHとしては、2−アミノ−安息香酸、4−アミノ−安息香酸、3−アミノ−オルソ−トルイック酸、2−アミノ−5−ヒドロキシ安息香酸等が、−NH−Y−SO3Hとしては、タウリン、スルファニル酸、メタニル酸、オルタニル酸、ナフチオン酸、トビアス酸、2−アミノフェノール−4−スルホン酸、2−メトキシアニリン−5−スルホン酸、4−クロルアニリン−3−スルホン酸、2−ニトロアニリン−3−スルホン酸、2−ニトロアニリン−4−スルホン酸、4B酸(p−トルイジン−m−スルホン酸)、2B酸(o−クロロ−p−トルイジン−m−スルホン酸)、C酸(3−アミノ−6−クロロトルエン−4−スルホン酸)、CB酸(3−アミノ−6−クロロ安息香酸−4−スルホン酸)、ガンマー酸(2−アミノ−8−ナフトール−6−スルホン酸)等が挙げられる。また、アミン成分又はアルコール成分である−Z−(CH2m−N−R12として、−Z−を除く部分の基がジメチルアミノエチル,ジエチルアミノエチル,ジメチルアミノプロピル,ジエチルアミノプロピル,ジブチルアミノプロピルであるアミン又はアルコール、N−アミノエチルピペリジン、N−アミノエチル−4−ピペコリン、N−アミノエチルモルホリン、N−アミノプロピルピペリジン、N−アミノプロピル−2−ピペコリン、N−アミノプロピル−4−ピペコリン、N−アミノプロピルモルホリン、N−ヒドロキシエチルピペリジン、N−ヒドロキシエチルピペコリン、N−ヒドロキシエチルモルホリン等が挙げられる。 Here, specific amines and alcohols represented by —NH—B—COOH, —NH—Y—SO 3 H or —Z— (CH 2 ) m —N—R 1 R 2 are as follows. Is exemplified. That is, as -NH-B-COOH, 2-amino-benzoic acid, 4-amino-benzoic acid, 3-amino-ortho-toluic acid, 2-amino-5-hydroxybenzoic acid, and the like are -NH-Y. As —SO 3 H, taurine, sulfanilic acid, metanilic acid, orthotanic acid, naphthionic acid, tobias acid, 2-aminophenol-4-sulfonic acid, 2-methoxyaniline-5-sulfonic acid, 4-chloroaniline-3 -Sulfonic acid, 2-nitroaniline-3-sulfonic acid, 2-nitroaniline-4-sulfonic acid, 4B acid (p-toluidine-m-sulfonic acid), 2B acid (o-chloro-p-toluidine-m-) Sulfonic acid), C acid (3-amino-6-chlorotoluene-4-sulfonic acid), CB acid (3-amino-6-chlorobenzoic acid-4-sulfonic acid), gamma acid 2-amino-8-naphthol-6-sulfonic acid) and the like. In addition, as —Z— (CH 2 ) m —N—R 1 R 2 which is an amine component or an alcohol component, a group other than —Z— is dimethylaminoethyl, diethylaminoethyl, dimethylaminopropyl, diethylaminopropyl, dibutyl. Amine or alcohol which is aminopropyl, N-aminoethylpiperidine, N-aminoethyl-4-pipecoline, N-aminoethylmorpholine, N-aminopropylpiperidine, N-aminopropyl-2-pipecoline, N-aminopropyl-4 -Pipecoline, N-aminopropylmorpholine, N-hydroxyethylpiperidine, N-hydroxyethylpipecholine, N-hydroxyethylmorpholine and the like.

以上のようにして得られた顔料誘導体であるYS、MS又はCSと、Yl系顔料、Qc系顔料又はPc系顔料とを用いて、目的とする画像記録用のイエロー、マゼンタ又はシアン顔料組成物を得るには、下記に述べるようにすればよい。   A yellow, magenta or cyan pigment composition for target image recording using the YS, MS or CS pigment derivative obtained as described above and a Yl pigment, Qc pigment or Pc pigment. To get it, you can do it as described below.

Yl系顔料、Qc系顔料又はPc系顔料の1次粒子径が150〜200nm以下であれば、それらの顔料100重量部に対して、顔料誘導体YS、MS又はCSを0.5〜20重量部の範囲、好ましくは2〜15重量部の範囲で単に混合するだけでもよく、Yl系顔料、Qc系顔料又はPc系顔料の1次粒子径が150〜200nm以上であれば、同じくYS、MS又はCSを0.5〜20重量部の範囲、好ましくは2〜15重量部の範囲で添加した後で、ニーダー、アトライター、ロール又は各種の微粉砕機等により機械的なエネルギーを加えて顔料の粒子径を調整すればよい。ここで、YS、MS又はCSの添加量が0.5重量部以下では、光学的特性の改良が不十分となり、逆に20重量部を越えても、また、顔料の1次粒子径が150〜200nm以上であっても、色相の鮮明性を阻害し、そのため光学的特性を阻害し、本発明の顔料組成物が得られ難くなる傾向が現れる。   If the primary particle diameter of the Yl pigment, Qc pigment or Pc pigment is 150 to 200 nm or less, 0.5 to 20 parts by weight of the pigment derivative YS, MS or CS with respect to 100 parts by weight of the pigments Of Y1 pigment, Qc pigment or Pc pigment if the primary particle diameter is 150 to 200 nm or more, YS, MS or After CS is added in the range of 0.5 to 20 parts by weight, preferably in the range of 2 to 15 parts by weight, mechanical energy is applied by a kneader, attritor, roll or various fine pulverizers, etc. What is necessary is just to adjust a particle diameter. Here, when the addition amount of YS, MS or CS is 0.5 parts by weight or less, the improvement of the optical characteristics becomes insufficient. Conversely, even if the amount exceeds 20 parts by weight, the primary particle diameter of the pigment is 150. Even if it is ˜200 nm or more, there is a tendency that the hue clarity is hindered, the optical properties are hindered, and the pigment composition of the present invention is hardly obtained.

上記のようにして得られたイエロー、マゼンタ又はシアン顔料組成物が画像記録用として有用である理由は、次のように考えることができる。画像記録用途が例えば、水性インクジェットやカラートナーの場合、着色剤の媒体である水やポリエステル、アクリル等の樹脂等に対する分散性を付与するために、従来では、主として極性基がスルホン酸型の顔料誘導体が顔料に添加されていたため、それなりの効果は得られていた。しかし、例えば、水性インクジェット用の場合、顔料の水媒体への分散性は良好であるが、スルホン酸型のために親水性が高く、そのために着色剤の用紙への浸透性が強くなって裏通しが大きくなり、見掛けの着色力が小さくなり、濃度感に問題を生じていた。一方、本発明に於いては、スルホン酸/アミン併用型又はカルボン酸型の顔料誘導体を使用することにより、上記の問題点を解決することができたものと考えられる。   The reason why the yellow, magenta or cyan pigment composition obtained as described above is useful for image recording can be considered as follows. In the case of an image recording application such as an aqueous inkjet or color toner, conventionally, in order to impart dispersibility to water, polyester, acrylic resin or the like as a colorant medium, conventionally, a pigment mainly having a sulfonic acid type as a polar group. Since the derivative was added to the pigment, a certain effect was obtained. However, for example, in the case of water-based inkjet, the dispersibility of the pigment in the aqueous medium is good, but because of the sulfonic acid type, the hydrophilicity is high, so that the penetrating property of the colorant into the paper becomes strong. There was a problem with the sense of density due to the increased threading and apparent coloring power. On the other hand, in the present invention, it is considered that the above problems could be solved by using a sulfonic acid / amine combined type or carboxylic acid type pigment derivative.

また、カラートナーの場合には、従来のスルホン酸型の顔料誘導体ではポリエステルやアクリルのような樹脂に対する分散効果が不十分であり、カラートナー用としての光学的特性に問題があった。一方、本発明に於いては、スルホン酸/アミン併用型又はカルボン酸型の顔料誘導体を使用することにより、上記の樹脂との馴染みが良好となり、分散効果が更に改善され、光学的特性も向上したものと考えられる。   Further, in the case of color toners, conventional sulfonic acid type pigment derivatives have insufficient dispersion effects on resins such as polyester and acrylic, and have problems in optical properties for color toners. On the other hand, in the present invention, by using a sulfonic acid / amine combined type or carboxylic acid type pigment derivative, the familiarity with the above-mentioned resin is improved, the dispersion effect is further improved, and the optical characteristics are also improved. It is thought that.

以上で述べたイエロー、マゼンタ及びシアン顔料の、画像記録用着色剤組成物としての基本的な適性の有無の判定法としては、従来から一般的で簡易的な方法として知られている次のような方法を採用することができる。即ち、画像記録用顔料組成物が水性インクジェット用のインクの場合には、先ず、通常使用されている分散能のあるアクリル系のような樹脂を使用し、20〜30%の高濃度で高分散化した顔料の水系分散体を調製し、それに含まれている顔料の平均粒径、並びに初期及び経時による安定性を含めた粘度を測定する。次に、この分散体の顔料分が3〜5重量%になるように、水/グリセリンなどの溶剤で希釈した樹脂及び顔料の分散液を調製し、これを水性インクジェット用インク用の専用紙に展色して試料を作製する。この試料の光学濃度(Optical Dencity、OD=log10(入射光量/出射光量)、以下「OD値」と称する。)をマクベス濃度計で測色する。これら顔料の平均粒径、粘度及びOD値の結果を総合して、水性インクジェットインク用の顔料組成物としての基本的な適性を判定することができる。 As a method for determining the basic suitability of the yellow, magenta and cyan pigments described above as a colorant composition for image recording, conventionally known as a general and simple method is as follows. Can be adopted. That is, when the image recording pigment composition is a water-based inkjet ink, first, a commonly used resin such as an acrylic resin having a dispersibility is used, and a high dispersion at a high concentration of 20 to 30% is used. An aqueous dispersion of the pigment is prepared, and the average particle size of the pigment contained in the pigment is measured, and the viscosity including the initial stability and stability over time is measured. Next, a dispersion of resin and pigment diluted with a solvent such as water / glycerin is prepared so that the pigment content of this dispersion is 3 to 5% by weight, and this is used as a special paper for aqueous inkjet ink. Create a sample by color development. The optical density of this sample (Optical Dencity, OD = log 10 (incident light quantity / outgoing light quantity), hereinafter referred to as “OD value”) is measured with a Macbeth densitometer. By combining the results of the average particle diameter, viscosity and OD value of these pigments, the basic suitability as a pigment composition for aqueous inkjet ink can be determined.

また、本発明の画像記録用顔料組成物をカラートナー用として使用する場合であれば、先ず、結着樹脂として通常使用されているポリエステルやアクリルのような樹脂に、顔料を高濃度で高分散化したマスターバッチを調製し、次に、このマスターバッチの顔料分が3〜5重量%になるように、テトラヒドロフラン又は酢酸エチルなどの溶剤で希釈した上記樹脂・顔料分散液を調製する。これを透明フィルムに展色することにより試料を作成する。この試料をオーバーヘッドプロジェクター(OHP)にセットし、その透過色を目視により判定する。これと併せて、同じく作製した試料の分光透過率特性(Y値)を測色する。更に、電子顕微鏡により、得られたイエロー、マゼンタ、シアン色顔料の形状等も観察し、これらの結果を総合して、カラートナー用の顔料組成物としての基本的な適性を判定することができる。   In addition, when the image recording pigment composition of the present invention is used for color toners, first, the pigment is dispersed at a high concentration and in a resin such as polyester or acrylic usually used as a binder resin. Then, the resin / pigment dispersion diluted with a solvent such as tetrahydrofuran or ethyl acetate is prepared so that the pigment content of the master batch is 3 to 5% by weight. A sample is prepared by spreading this on a transparent film. This sample is set on an overhead projector (OHP), and the transmitted color is visually determined. At the same time, the spectral transmittance characteristic (Y value) of the same sample is measured. Furthermore, the shape of the obtained yellow, magenta, and cyan pigments can be observed with an electron microscope, and these results can be combined to determine the basic suitability as a color toner pigment composition. .

本発明の画像記録用イエロー、マゼンタ及びシアン顔料組成物を用いて水性インクジェット用インクを製造する場合には、公知の構成主成分として、分散剤(界面活性剤又は水溶性樹脂)、表面張力調整剤(界面活性剤)、水溶性有機溶剤、防腐剤、pH調整剤、防錆剤などを必要により添加してもよい。   When producing an aqueous inkjet ink using the yellow, magenta and cyan pigment compositions for image recording of the present invention, as a known constituent main component, a dispersant (surfactant or water-soluble resin), surface tension adjustment If necessary, an agent (surfactant), a water-soluble organic solvent, a preservative, a pH adjuster, a rust inhibitor and the like may be added.

上記の場合の水性インクジェット用インクに適した分散剤としては、公知のものが全て使用可能であり、アニオン系又はノニオン系の界面活性剤であって顔料の分散剤として用いられているものを全て使用することができる。例えば、アニオン性活性剤としては、脂肪酸塩、アルキル硫酸エステル塩、アルキルアリールスルホン酸塩、アルキルナフタレンスルホン酸塩、ジアルキルスルホン酸塩、ジアルキルスルホコハク酸塩、アルキルジアリールエーテルジスルホン酸塩、アルキルリン酸塩、ポリオキシエチレンアルキルエーテル硫酸塩、ポリオキシエチレンアルキルアリールエーテル硫酸塩、ナフタレンスルホン酸ホルマリン縮合物、ポリオキシエチレンアルキルリン酸エステル塩、グリセロールボレイト脂肪酸エステル、ポリオキシエチレングリセロール脂肪酸エステル等を挙げることができる。ノニオン性活性剤としては、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルキルアリールエーテル、ポリオキシエチレンオキシプロピレンブロックコポリマー、ソルビタン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレンソルビトール脂肪酸エステル、グリセリン脂肪酸エステル、ポリオキシエチレン脂肪酸エステルポリオキシエチレンアルキルアミン等を挙げることができる。これらの分散剤は、インクの全重量に対して0.3〜40重量%の範囲で使用される。   As the dispersant suitable for the aqueous inkjet ink in the above case, all known ones can be used, and all the anionic or nonionic surfactants used as pigment dispersants are used. Can be used. For example, anionic activators include fatty acid salts, alkyl sulfate esters, alkyl aryl sulfonates, alkyl naphthalene sulfonates, dialkyl sulfonates, dialkyl sulfosuccinates, alkyl diaryl ether disulfonates, alkyl phosphates. , Polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl aryl ether sulfate, naphthalenesulfonic acid formalin condensate, polyoxyethylene alkyl phosphate ester salt, glycerol borate fatty acid ester, polyoxyethylene glycerol fatty acid ester, etc. Can do. Nonionic activators include polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene oxypropylene block copolymer, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, glycerin fatty acid ester, Examples include polyoxyethylene fatty acid ester polyoxyethylene alkylamine. These dispersants are used in the range of 0.3 to 40% by weight based on the total weight of the ink.

また、本発明の水性インクジェット用インクに適した分散剤として、分散能を有する水溶性樹脂を使用することもできる。本発明に於いて好適に使用される水溶性樹脂としては、一旦溶媒に溶けてしまえばインクジェット用プリンターの使用温度又は室温で、顔料の析出やゲル化が生じないものが選ばれる。使用し得る水溶性樹脂としては、例えば、アクリル系樹脂を挙げることができ、具体的にはスチレン−アクリル酸共重合体、アクリル酸−アクリル酸エステル共重合体、スチレン−アクリル酸−アクリル酸エステル共重合体、スチレン−メタクリル酸共重合体、スチレン−メタクリル酸−アクリル酸エステル共重合体、スチレン−α−メチルスチレン−アクリル酸共重合体、スチレン−α−メチルスチレン−アクリル酸−アクリル酸エステル共重合体、ポリアクリル酸、ポリメタクリル酸、ビニルナフタレン−アクリル酸共重合物の塩、スチレン−マレイン酸共重合物の塩、スチレン−無水マレイン酸共重合物の塩、ビニルナフタレン−マレイン酸共重合物の塩などを挙げることができる。また、アクリロニトリル、酢酸ビニル、アクリルアミド、塩化ビニル、塩化ビニリデン、エチレン、ヒドロキシエチルアクリレートなどのモノマーが共重合されていてもよい。更に、これらは、単独又は複数を組み合わせて添加してもよい。   A water-soluble resin having dispersibility can also be used as a dispersant suitable for the aqueous inkjet ink of the present invention. As the water-soluble resin suitably used in the present invention, a resin that does not cause pigment precipitation or gelation at the use temperature or room temperature of an ink jet printer once it is dissolved in a solvent is selected. Examples of water-soluble resins that can be used include acrylic resins. Specifically, styrene-acrylic acid copolymers, acrylic acid-acrylic acid ester copolymers, and styrene-acrylic acid-acrylic acid esters. Copolymer, styrene-methacrylic acid copolymer, styrene-methacrylic acid-acrylic acid ester copolymer, styrene-α-methylstyrene-acrylic acid copolymer, styrene-α-methylstyrene-acrylic acid-acrylic acid ester Copolymer, polyacrylic acid, polymethacrylic acid, vinylnaphthalene-acrylic acid copolymer salt, styrene-maleic acid copolymer salt, styrene-maleic anhydride copolymer salt, vinylnaphthalene-maleic acid copolymer Examples thereof include a salt of a polymer. Moreover, monomers such as acrylonitrile, vinyl acetate, acrylamide, vinyl chloride, vinylidene chloride, ethylene, and hydroxyethyl acrylate may be copolymerized. Furthermore, these may be added alone or in combination.

これらの分散剤は、イエロー、マゼンタ又はシアン色のインクの全重量に対して0.1〜30重量%、好ましくは1〜30重量%の範囲で使用される。   These dispersants are used in the range of 0.1 to 30% by weight, preferably 1 to 30% by weight, based on the total weight of the yellow, magenta or cyan ink.

本発明に於いて好適に使用される表面張力調整剤としては、調合されるインクに悪影響を及ぼさないものであれば、公知のものを全て使用することができる。表面張力調整剤としては、アニオン系、カチオン系、ノニオン系の何れの界面活性剤をも使用することができる。具体的には、アニオン系界面活性剤として、ポリエチレングリコールアルキルエーテル硫酸エステル塩、高級アルコール硫酸塩、ナフタレンスルホン酸ホルマリン縮合物等を例示することができる。また、カチオン系界面活性剤としては、ポリ2−ビニルピリジン誘導体、ポリ4−ビニルピリジン誘導体等を例示することができる。更に、ノニオン系界面活性剤として、ポリオキシエチレンアルキルエーテル、ポリオキシアルキルフェニルエーテル、ポリオキシエチレンアルキルエステル、ポリオキシエチレンソルビタンモノアルキルエーテル、ポリオキシエチレンアルキルアミン等を例示することができる。   As the surface tension adjusting agent suitably used in the present invention, any known one can be used as long as it does not adversely affect the prepared ink. As the surface tension adjusting agent, any of anionic, cationic, and nonionic surfactants can be used. Specifically, examples of the anionic surfactant include polyethylene glycol alkyl ether sulfate, higher alcohol sulfate, naphthalenesulfonic acid formalin condensate, and the like. Examples of cationic surfactants include poly-2-vinylpyridine derivatives and poly-4-vinylpyridine derivatives. Furthermore, examples of the nonionic surfactant include polyoxyethylene alkyl ether, polyoxyalkyl phenyl ether, polyoxyethylene alkyl ester, polyoxyethylene sorbitan monoalkyl ether, polyoxyethylene alkylamine and the like.

インクの粘度を所望の値に調整するため、及びインクの乾燥を防止するために、水と下記の水溶性有機溶剤とを混合して使用することもできる。即ち、メチルアルコール、エチルアルコール、n−プロピルアルコール、イソプロピルアルコール、n−ブチルアルコール、sec−ブチルアルコールのような炭素数1〜4のアルキルアルコール、アセトンやアセトンアルコールのようなケトン又はケトンアルコール、テトラヒドロフランやジオキサンのようなエーテル、エチレングリコール、プロピレングリコール、ジエチレングリコール、トリエチレングリコール、ポリエチレングリコール、グリセリン、ジエチレングリコールジエチルエーテル、ジエチレングリコールモノ−n−ブチルエーテル等の多価アルコール及びそのエーテル、アセテート類、N−メチル−2−ピロリドン、1,3−ジメチルイミダゾリノン、ジメチルホルムアミド、トリエタノールアミン等の含窒素化合物である。これらの水溶性有機溶剤は、一種類または二種類以上を使用することができる。水溶性有機溶剤の使用量は特に限定されないが、一般的にはイエロー、マゼンタ又はシアン色のインクの全重量に対して、3〜50重量%の範囲である。   In order to adjust the viscosity of the ink to a desired value and to prevent the ink from drying, it is also possible to use a mixture of water and the following water-soluble organic solvent. That is, alkyl alcohol having 1 to 4 carbon atoms such as methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, sec-butyl alcohol, ketone or ketone alcohol such as acetone or acetone alcohol, tetrahydrofuran And ethers such as dioxane, ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, glycerin, diethylene glycol diethyl ether, diethylene glycol mono-n-butyl ether and other polyhydric alcohols and their ethers, acetates, N-methyl- Nitrogen-containing compounds such as 2-pyrrolidone, 1,3-dimethylimidazolinone, dimethylformamide, triethanolamine That. One or more kinds of these water-soluble organic solvents can be used. The amount of the water-soluble organic solvent used is not particularly limited, but is generally in the range of 3 to 50% by weight with respect to the total weight of the yellow, magenta or cyan ink.

本発明の画像記録用顔料組成物に用いることのできる防腐剤としては、調合されるインクに悪影響を及ぼさないものであれば公知のものが全て使用することができる。例えば、デヒドロ硫酸ナトリウム、ソルビン酸ナトリウム、2−ピリジンチオール−1−オキサイドナトリウム、安息香酸ナトリウム、ペンタクロロフェノールナトリウム、1,2−ベンズイソチアゾリン−3−オン等を挙げることができる。   As the preservative that can be used in the image recording pigment composition of the present invention, any known preservatives can be used as long as they do not adversely affect the prepared ink. Examples thereof include sodium dehydrosulfate, sodium sorbate, sodium 2-pyridinethiol-1-oxide, sodium benzoate, sodium pentachlorophenol, 1,2-benzisothiazolin-3-one and the like.

本発明の画像記録用顔料組成物に好適に使用されるpH調整剤としては、調合されるインクに悪影響を及ぼさずに所望のpHに制御できるものであれば殆どのものを使用することができる。具体的には、低級アルカノールアミンや水酸化アンモニウム等が挙げられる。   As the pH adjusting agent suitably used in the image recording pigment composition of the present invention, almost any pH adjusting agent can be used as long as it can be controlled to a desired pH without adversely affecting the formulated ink. . Specific examples include lower alkanolamine and ammonium hydroxide.

本発明の画像記録用顔料組成物に好適に使用される防錆剤としては、調合されるインクに悪影響を及ぼさなければ公知のものを全て使用することができる。例えば、酸性亜硫酸塩、チオ硫酸ナトリウム、チオグリコール酸アンモニウム、ジイソプロピルアンモニウムニトライト、四硝酸ペンタエリスリトール、ジシクロヘキシルアンモニウムニトライト等がある。   As the rust preventive agent suitably used in the image recording pigment composition of the present invention, any known rust preventive agent can be used as long as it does not adversely affect the prepared ink. For example, acidic sulfite, sodium thiosulfate, ammonium thioglycolate, diisopropylammonium nitrite, pentaerythritol tetranitrate, dicyclohexylammonium nitrite and the like.

また、本発明の画像記録用顔料組成物には、印刷物に光沢等を与えるために、必要に応じて、例えばビニルピロリドンの低縮合物、アクリル樹脂、スチレン−マレイン酸樹脂等を使用することができる。   In addition, in the image recording pigment composition of the present invention, for example, a low-condensation product of vinyl pyrrolidone, an acrylic resin, a styrene-maleic acid resin, or the like may be used as needed to give gloss to printed matter. it can.

本発明の画像記録用のイエロー、マゼンタ又はシアン顔料組成物を分散させる媒体としては、純水及び一般的な有機溶剤を使用することができる。例えば、メタノール、エタノール、イソプロパノール、エチレングリコール、グリセリン等を例示することができる。   As a medium in which the yellow, magenta or cyan pigment composition for image recording of the present invention is dispersed, pure water and a general organic solvent can be used. For example, methanol, ethanol, isopropanol, ethylene glycol, glycerin and the like can be exemplified.

本発明の画像記録用顔料組成物を用いてカラートナーを製造するためには、従前の手順に従って以下のように行うとよい。即ち、線状ポリエステル樹脂(例えば、ビスフェノールAのエチレンオキサイド付加物−テレフタル酸縮合生成物、軟化点107℃、ガラス転移点63℃)、又はスチレンアクリル樹脂(例えば、スチレン/ブチルメタクリレート共重合体、軟化点115℃、ガラス転移点63℃)等の結着樹脂55〜75重量部、好ましくは60〜65重量部をニーダーに投入し、105〜135℃、好ましくは110〜120℃で加熱溶融した中に、本発明のイエロー、マゼンタ、シアン色顔料組成物25〜45重量部、好ましくは35〜40重量部を少しずつ投入してマスターバッチを調製する。次に、このマスターバッチ7〜20重量部、好ましくは10〜15重量部を、前記線状ポリエステル樹脂又はスチレンアクリル樹脂等の結着樹脂80〜93重量部、好ましくは85〜90重量部に、適量の電荷調整剤と共に添加して希釈し、105〜135℃、好ましくは110〜120℃で溶融・混練する。これを冷却後、粉砕して得られる粉体を分級して平均粒径5〜12μmの粉体を得、更に流動性向上剤、クリーニング助剤等を添加してカラートナーを得ることができる。   In order to produce a color toner using the image recording pigment composition of the present invention, the following procedure may be followed. That is, linear polyester resin (for example, ethylene oxide adduct of bisphenol A-terephthalic acid condensation product, softening point 107 ° C., glass transition point 63 ° C.), or styrene acrylic resin (for example, styrene / butyl methacrylate copolymer, A binder resin such as a softening point of 115 ° C. and a glass transition point of 63 ° C. is added to 55 to 75 parts by weight, preferably 60 to 65 parts by weight, and heated and melted at 105 to 135 ° C., preferably 110 to 120 ° C. A master batch is prepared by gradually adding 25 to 45 parts by weight, preferably 35 to 40 parts by weight of the yellow, magenta and cyan pigment compositions of the present invention. Next, 7 to 20 parts by weight of this master batch, preferably 10 to 15 parts by weight, is bound to 80 to 93 parts by weight of a binder resin such as the linear polyester resin or styrene acrylic resin, preferably 85 to 90 parts by weight. It is added and diluted together with an appropriate amount of charge control agent, and melted and kneaded at 105 to 135 ° C, preferably 110 to 120 ° C. After cooling this, the powder obtained by pulverization is classified to obtain a powder having an average particle diameter of 5 to 12 μm, and a color toner can be obtained by further adding a fluidity improver, a cleaning aid and the like.

以下に、実施例及び比較例を挙げ、本発明をさらに詳細に説明するが、本発明は、これらに限定されるものではない。なお、特に明示していない限り、以下の実施例、比較例等に於ける部、%は重量部、重量%をそれぞれ表している。   Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited thereto. Unless otherwise specified, parts and% in the following Examples and Comparative Examples represent parts by weight and% by weight, respectively.

〔顔料誘導体の合成〕
本発明の画像記録用イエロー、マゼンタ及びシアン顔料組成物の原料となる顔料誘導体YS、MS及びCSを以下の合成法によって製造した。
(Synthesis of pigment derivatives)
Pigment derivatives YS, MS and CS used as raw materials for the yellow, magenta and cyan pigment compositions for image recording of the present invention were produced by the following synthesis method.

(合成例1…顔料誘導体MS−1)
反応容器に98%硫酸505.0部を投入し、ジメチルキナクリドン(以下、「Qc1」と称する。)顔料34.0部を20〜30℃で加え、30℃で1時間撹拌した後、フタルイミド17.6部及びパラホルムアルデヒド3.6部を加えて、70℃で3時間反応した。反応液を5000部の氷水中に投入し、濾過、水洗してフタルイミドメチル化Qc1顔料のペーストを得た。
(Synthesis example 1 ... pigment derivative MS-1)
To the reaction vessel, 505.0 parts of 98% sulfuric acid was added, 34.0 parts of dimethylquinacridone (hereinafter referred to as “Qc1”) pigment was added at 20-30 ° C., and the mixture was stirred at 30 ° C. for 1 hour. .6 parts and 3.6 parts of paraformaldehyde were added and reacted at 70 ° C. for 3 hours. The reaction solution was poured into 5000 parts of ice water, filtered and washed with water to obtain a phthalimidomethylated Qc1 pigment paste.

次に、反応容器中に、上記のフタルイミドメチル化Qc1顔料のペーストを水1000部で洗い出して撹拌し、その中に30%水酸化ナトリウム水溶液60.7部を投入して、85℃で3時間撹拌した後、35%塩酸300.0部を投入し、85℃で3時間撹拌した。室温に冷却後、30%水酸化ナトリウム水溶液37.5部を加え、濾過、水洗してアミノメチル化Qc1顔料のペーストを得、これを水1500部で再分散した。   Next, the paste of the above phthalimidomethylated Qc1 pigment was washed out with 1000 parts of water and stirred in a reaction vessel, and 60.7 parts of a 30% aqueous sodium hydroxide solution was put therein, and the mixture was stirred at 85 ° C. for 3 hours. After stirring, 300.0 parts of 35% hydrochloric acid was added and stirred at 85 ° C. for 3 hours. After cooling to room temperature, 37.5 parts of a 30% aqueous sodium hydroxide solution was added, filtered and washed with water to obtain an aminomethylated Qc1 pigment paste, which was redispersed in 1500 parts of water.

一方、別の反応容器に水100部及びソーダ灰5.4部を入れ、その中に4−アミノ安息香酸13.7部を添加して溶解した液を氷で0℃以下に冷却した後、この中に塩化シアヌル18.5部を加えて20℃以下で1時間撹拌して、4−アミノ安息香酸と塩化シアヌルの脱塩酸縮合物の分散液560部を得た。この縮合物の分散液を、先に得ていたアミノメチル化Qc1顔料の再分散液中に加えた後、70℃で1時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化3に示す構造のマゼンタ顔料誘導体MS−1を57.1部で得た。   On the other hand, 100 parts of water and 5.4 parts of soda ash were put into another reaction vessel, and after 13.7 parts of 4-aminobenzoic acid was added and dissolved therein, the solution was cooled to 0 ° C. or lower with ice, Into this, 18.5 parts of cyanuric chloride was added and stirred at 20 ° C. or lower for 1 hour to obtain 560 parts of a dispersion of dehydrochlorinated condensate of 4-aminobenzoic acid and cyanuric chloride. The condensate dispersion was added to the previously obtained aminomethylated Qc1 pigment redispersion and stirred at 70 ° C. for 1 hour. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 57.1 parts of magenta pigment derivative MS-1 having the structure shown in Chemical formula 3.

Figure 2005048114
(合成例2…顔料誘導体MS−2)
反応容器にクロルスルホン酸225.0部を投入し、Qc1顔料51.0部を加え、70℃に昇温した後、塩化チオニル63.0部添加して70℃で3時間反応した。反応液を4500部の氷水中に投入し、濾過、水洗してクロルスルホン化Qc1顔料のペーストとし、このペーストを水1500部で再分散し、その中にエチレンジアミン21.6部を添加して、80℃で1時間撹拌した後、反応液を濾過、水洗してエチレンジアミンスルホン化Qc1顔料のペーストとした。
Figure 2005048114
(Synthesis Example 2 ... pigment derivative MS-2)
To the reaction vessel, 225.0 parts of chlorosulfonic acid was added, 51.0 parts of Qc1 pigment was added, the temperature was raised to 70 ° C., 63.0 parts of thionyl chloride was added, and the mixture was reacted at 70 ° C. for 3 hours. The reaction solution was poured into 4500 parts of ice water, filtered and washed with water to obtain a paste of chlorosulfonated Qc1 pigment. This paste was redispersed with 1500 parts of water, and 21.6 parts of ethylenediamine was added thereto. After stirring at 80 ° C. for 1 hour, the reaction solution was filtered and washed with water to obtain an ethylenediaminesulfonated Qc1 pigment paste.

一方、別の反応容器に水300部及びソーダ灰9.5部を入れ、その中に2−アミノ安息香酸24.6部を添加、溶解した液を氷で0℃以下に冷却した後、この中に塩化シアヌル33.2部を加えて20℃以下で1時間撹拌して、2−アミノ安息香酸と塩化シアヌルの縮合物の分散液750部を得た。この縮合物の分散液を、先に得ていたエチレンジアミンスルホン化Qc1顔料の再分散液中に加えた後、90℃で2時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化4に示す構造のマゼンタ顔料誘導体MS−2を109.1部で得た。   On the other hand, 300 parts of water and 9.5 parts of soda ash were put into another reaction vessel, and 24.6 parts of 2-aminobenzoic acid was added therein, and the dissolved liquid was cooled to 0 ° C. or lower with ice, Inside, 33.2 parts of cyanuric chloride was added and stirred at 20 ° C. or lower for 1 hour to obtain 750 parts of a dispersion of a condensate of 2-aminobenzoic acid and cyanuric chloride. The dispersion of this condensate was added to the previously obtained redispersion of the ethylenediaminesulfonated Qc1 pigment, and then stirred at 90 ° C. for 2 hours. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 109.1 parts of magenta pigment derivative MS-2 having the structure shown in Chemical formula 4.

Figure 2005048114
(合成例3…顔料誘導体MS−3)
反応容器に98%硫酸505.0部を投入し、Qc1顔料34.0部を20〜30℃で加え、30℃で1時間撹拌した後、フタルイミド17.6部及びパラホルムアルデヒド3.6部を加えて、70℃で3時間反応した。反応液を5000部の氷水中に投入し、濾過、水洗してフタルイミドメチル化Qc1顔料のペーストを得た。
Figure 2005048114
(Synthesis Example 3 ... Pigment derivative MS-3)
In a reaction vessel, 505.0 parts of 98% sulfuric acid was added, 34.0 parts of Qc1 pigment was added at 20 to 30 ° C. and stirred at 30 ° C. for 1 hour, and then 17.6 parts of phthalimide and 3.6 parts of paraformaldehyde were added. In addition, it reacted at 70 ° C. for 3 hours. The reaction solution was poured into 5000 parts of ice water, filtered and washed with water to obtain a phthalimidomethylated Qc1 pigment paste.

次に、反応容器中に、上記のフタルイミドメチル化Qc1顔料のペーストを水1000部で洗い出し撹拌し、その中に30%水酸化ナトリウム水溶液60.7部を投入して、85℃で3時間撹拌した後、35%塩酸300.0部を投入し、85℃で3時間撹拌した。室温に冷却後、30%水酸化ナトリウム水溶液37.5部を加え、濾過、水洗してアミノメチル化Qc1顔料のペーストを得、これを水1500部で再分散した。   Next, in the reaction vessel, the phthalimidomethylated Qc1 pigment paste was washed out with 1000 parts of water and stirred, and then 60.7 parts of a 30% aqueous sodium hydroxide solution was added thereto and stirred at 85 ° C. for 3 hours. After that, 300.0 parts of 35% hydrochloric acid was added and stirred at 85 ° C. for 3 hours. After cooling to room temperature, 37.5 parts of a 30% aqueous sodium hydroxide solution was added, filtered and washed with water to obtain an aminomethylated Qc1 pigment paste, which was redispersed in 1500 parts of water.

一方、別の反応容器に水150部及びソーダ灰5.4部を入れ、その中にタウリン12.5部を添加、溶解した液を氷で0℃以下に冷却した後、この中に塩化シアヌル18.5部を加えて20℃以下で1時間撹拌して、タウリンと塩化シアヌルの脱塩酸結合物の分散液500部を得た。この結合物の分散液を、先に得ていたアミノメチル化Qc1顔料の再分散液中に加えた後、60℃で1時間撹拌した。更に、ジメチルアミノプロピルアミン20.4部を加えた後、90℃で1時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化5の構造のマゼンタ顔料誘導体MS−3を53.8部で得た。   On the other hand, 150 parts of water and 5.4 parts of soda ash are put into another reaction vessel, 12.5 parts of taurine is added therein, and the dissolved liquid is cooled to 0 ° C. or lower with ice, and then cyanuric chloride is added thereto. 18.5 parts was added and stirred at 20 ° C. or lower for 1 hour to obtain 500 parts of a dispersion of taurine and cyanuric chloride dehydrochlorinated bond. The dispersion of the combined product was added to the previously obtained re-dispersion of the aminomethylated Qc1 pigment, and then stirred at 60 ° C. for 1 hour. Furthermore, after adding 20.4 parts of dimethylaminopropylamine, it stirred at 90 degreeC for 1 hour. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 53.8 parts of a magenta pigment derivative MS-3 having the structure of Chemical Formula 5.

Figure 2005048114
(合成例4…顔料誘導体MS−4)
反応容器に98%硫酸713.0部を投入し、Qc1顔料34.0部、モリブデン酸アンモニウム1.3部及び硫酸ヒドロキシルアミン113.8部を50℃以下で加え、55℃で1時間撹拌した後、反応液を3500部の水中に投入し、濾過、水洗してアミノ化Qc1顔料のペーストを得た。このペーストを1000部の水中に投入し再分散する。
Figure 2005048114
(Synthesis Example 4 ... Pigment derivative MS-4)
In a reaction vessel, 713.0 parts of 98% sulfuric acid was added, 34.0 parts of Qc1 pigment, 1.3 parts of ammonium molybdate and 113.8 parts of hydroxylamine sulfate were added at 50 ° C. or lower, and the mixture was stirred at 55 ° C. for 1 hour. Thereafter, the reaction solution was poured into 3500 parts of water, filtered and washed with water to obtain an aminated Qc1 pigment paste. This paste is put into 1000 parts of water and redispersed.

一方、別の反応容器に水120部を入れ、その中にスルファニル酸20.8部を添加した液を氷で0℃以下に冷却した後、この中に塩化シアヌル18.5部を加えて20℃以下で1時間撹拌して、分散液500部を得た。この分散液を、先に得ていたアミノ化Qc1顔料の再分散液中に加えた後、60℃で1時間撹拌した。更に、ジエチルアミノプロピルアミン26.0部を加えた後、90℃で2時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化6に示す構造のマゼンタ顔料誘導体MS−4を73.3部で得た。   On the other hand, 120 parts of water was put into another reaction vessel, and a solution containing 20.8 parts of sulfanilic acid was cooled to 0 ° C. or lower with ice, and then 18.5 parts of cyanuric chloride was added thereto. The mixture was stirred at a temperature of not higher than 1 ° C. for 1 hour to obtain 500 parts of a dispersion. This dispersion was added to the previously obtained redispersion of the aminated Qc1 pigment and then stirred at 60 ° C. for 1 hour. Furthermore, after adding 26.0 parts of diethylaminopropylamine, it stirred at 90 degreeC for 2 hours. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 73.3 parts of magenta pigment derivative MS-4 having the structure shown in Chemical formula 6.

Figure 2005048114
(合成例5…顔料誘導体MS−5)
反応容器に98%硫酸505.0部を投入し、Qc1顔料34.0部を20〜30℃で加え、30℃で1時間撹拌した後、フタルイミド17.6部及びパラホルムアルデヒド3.6部を加えて、70℃で3時間反応した。反応液を5000部の氷水中に投入し、濾過、水洗してフタルイミドメチル化Qc1顔料のペーストを得た。
Figure 2005048114
(Synthesis Example 5: Pigment derivative MS-5)
In a reaction vessel, 505.0 parts of 98% sulfuric acid was added, 34.0 parts of Qc1 pigment was added at 20 to 30 ° C. and stirred at 30 ° C. for 1 hour, and then 17.6 parts of phthalimide and 3.6 parts of paraformaldehyde were added. In addition, it reacted at 70 ° C. for 3 hours. The reaction solution was poured into 5000 parts of ice water, filtered and washed with water to obtain a phthalimidomethylated Qc1 pigment paste.

次に、反応容器中に、上記のフタルイミドメチル化Qc1顔料のペーストを水1000部で洗い出して撹拌し、その中に30%水酸化ナトリウム水溶液60.7部を投入して、85℃で3時間撹拌した後、35%塩酸300.0部を投入し、85℃で3時間撹拌した。室温に冷却後、30%水酸化ナトリウム水溶液37.5部を加え、濾過、水洗してアミノメチル化Qc1顔料のペーストを得、これを水1500部で再分散した。   Next, the paste of the above phthalimidomethylated Qc1 pigment was washed out with 1000 parts of water and stirred in a reaction vessel, and 60.7 parts of a 30% aqueous sodium hydroxide solution was put therein, and the mixture was stirred at 85 ° C. for 3 hours. After stirring, 300.0 parts of 35% hydrochloric acid was added and stirred at 85 ° C. for 3 hours. After cooling to room temperature, 37.5 parts of a 30% aqueous sodium hydroxide solution was added, filtered and washed with water to obtain an aminomethylated Qc1 pigment paste, which was redispersed in 1500 parts of water.

一方、別の反応容器に水100部及びソーダ灰5.4部を入れ、その中に4−アミノ安息香酸13.7部を添加、溶解した液を氷で0℃以下に冷却した後、この中に塩化シアヌル18.5部を加えて20℃以下で1時間撹拌して、4−アミノ安息香酸と塩化シアヌルとの縮合物の分散液400部を得た。この縮合物の分散液を、先に得ていたアミノメチル化Qc1顔料の再分散液中に加えた後、60℃で1時間撹拌した。更に、ジブチルアミノプロピルアルコール37.4部を加えた後、90℃で1時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化7に示す構造のマゼンタ顔料誘導体MS−5を58.3部で得た。   On the other hand, 100 parts of water and 5.4 parts of soda ash were put into another reaction vessel, and 13.7 parts of 4-aminobenzoic acid was added therein, and the dissolved liquid was cooled to 0 ° C. or lower with ice, 18.5 parts of cyanuric chloride was added and stirred at 20 ° C. or lower for 1 hour to obtain 400 parts of a dispersion of a condensate of 4-aminobenzoic acid and cyanuric chloride. The condensate dispersion was added to the previously obtained aminomethylated Qc1 pigment redispersion and stirred at 60 ° C. for 1 hour. Furthermore, after adding 37.4 parts of dibutylaminopropyl alcohol, it stirred at 90 degreeC for 1 hour. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 58.3 parts of magenta pigment derivative MS-5 having the structure shown in Chemical formula 7.

Figure 2005048114
(合成例6…顔料誘導体MS−6)
反応容器に98%硫酸713.0部を投入し、Qc1顔料34.0部、モリブデン酸アンモニウム1.3部及び硫酸ヒドロキシルアミン113.8部を50℃以下で加え、65℃で3時間撹拌した後、反応液を5000部の氷水中に投入し、濾過、水洗してアミノ化Qc1顔料のペーストを得た。このペーストを1000部の水中に投入し再分散した。
Figure 2005048114
(Synthesis Example 6 ... Pigment derivative MS-6)
In a reaction vessel, 713.0 parts of 98% sulfuric acid was added, 34.0 parts of Qc1 pigment, 1.3 parts of ammonium molybdate and 113.8 parts of hydroxylamine sulfate were added at 50 ° C. or lower, and the mixture was stirred at 65 ° C. for 3 hours. Thereafter, the reaction solution was poured into 5000 parts of ice water, filtered and washed with water to obtain an aminated Qc1 pigment paste. This paste was put into 1000 parts of water and redispersed.

一方、別の反応容器に水200部及びソーダ灰10.6部を入れ、その中に2−アミノ安息香酸27.4部を添加して溶解した液中に、塩化シアヌル37.0部を加えて40℃で1時間撹拌して、分散液500部を得た。この分散液に、先に得ていたアミノ化Qc1顔料の再分散液中に加えた後、90℃で3時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化8に示す構造のマゼンタ顔料誘導体MS−6を70.8部で得た。   Meanwhile, in another reaction vessel, 200 parts of water and 10.6 parts of soda ash are added, and 27.4 parts of 2-aminobenzoic acid is added and dissolved therein, and 37.0 parts of cyanuric chloride are added. And stirred at 40 ° C. for 1 hour to obtain 500 parts of a dispersion. The dispersion was added to the previously obtained redispersion of the aminated Qc1 pigment and then stirred at 90 ° C. for 3 hours. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 70.8 parts of magenta pigment derivative MS-6 having the structure shown in Chemical formula 8.

Figure 2005048114
(合成例7…顔料誘導体MS−7)
合成例1のQc1顔料34.0部に代えてキナクリドン(以下、「Qc2」と称する。)顔料31.2部を使用した以外は合成例1と全く同じ操作をして、化9に示す構造のマゼンタ顔料誘導体MS−7を54.5部で得た。
Figure 2005048114
(Synthesis Example 7: Pigment derivative MS-7)
The structure shown in Chemical formula 9 is the same as in Synthesis example 1 except that 31.2 parts of quinacridone (hereinafter referred to as “Qc2”) pigment is used instead of 34.0 parts of Qc1 pigment of Synthesis example 1. Of magenta pigment derivative MS-7 was obtained in 54.5 parts.

Figure 2005048114
(合成例8…顔料誘導体MS−8)
合成例4のQc1顔料34.0部に代えてQc2顔料31.2部を使用した以外は合成例4と全く同じ操作をして、化10に示す構造のマゼンタ顔料誘導体(MS−8)70.5部を得た。
Figure 2005048114
(Synthesis Example 8 ... Pigment derivative MS-8)
A magenta pigment derivative (MS-8) 70 having the structure shown in Chemical Formula 10 was prepared in the same manner as in Synthesis Example 4 except that 31.2 parts of Qc2 pigment was used instead of 34.0 parts of Qc1 pigment in Synthesis Example 4. .5 parts were obtained.

Figure 2005048114
(合成例9…顔料誘導体MS−9)
合成例1の4−アミノ安息香酸13.7部に代えてスルファニル酸17.3部を使用した以外は合成例1と全く同じ操作をして、化11に示す構造のマゼンタ顔料誘導体MS−9を60.5部をでた。
Figure 2005048114
(Synthesis Example 9: Pigment derivative MS-9)
A magenta pigment derivative MS-9 having the structure shown in Chemical Formula 11 was carried out in the same manner as in Synthesis Example 1 except that 17.3 parts of sulfanilic acid was used instead of 13.7 parts of 4-aminobenzoic acid in Synthesis Example 1. Of 60.5 parts.

Figure 2005048114
(合成例10…顔料誘導体MS−10)
反応容器に98%硫酸713.0部を投入し、Qc1顔料31.2部、モリブデン酸アンモニウム1.3部及び硫酸ヒドロキシルアミン113.8部を50℃以下で加え、55℃で1時間撹拌した後、反応液を3500部の水中に投入し、濾過、水洗してアミノ化Qc1顔料のペーストを得た。このペーストを1000部の水中に投入し再分散する。
Figure 2005048114
(Synthesis Example 10: Pigment derivative MS-10)
In a reaction vessel, 713.0 parts of 98% sulfuric acid was added, 31.2 parts of Qc1 pigment, 1.3 parts of ammonium molybdate and 113.8 parts of hydroxylamine sulfate were added at 50 ° C. or lower, and the mixture was stirred at 55 ° C. for 1 hour. Thereafter, the reaction solution was poured into 3500 parts of water, filtered and washed with water to obtain an aminated Qc1 pigment paste. This paste is put into 1000 parts of water and redispersed.

一方、別の反応容器に水120部を入れ、その中にタウリン37.5部を添加した液を氷で0℃以下に冷却した後、この中に塩化シアヌル18.5部を加えて20℃以下で1時間撹拌して、分散液500部を得た。この分散液を、先に得ていたアミノ化Qc1顔料の再分散液中に加えた後、85℃で1時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化12に示す構造下記構造のマゼンタ顔料誘導体MS−10を57.8部で得た。   On the other hand, 120 parts of water was put into another reaction vessel, and a solution obtained by adding 37.5 parts of taurine was cooled to 0 ° C. or lower with ice, and then 18.5 parts of cyanuric chloride was added thereto and 20 ° C. The mixture was stirred for 1 hour to obtain 500 parts of a dispersion. This dispersion was added to the previously obtained redispersion of the aminated Qc1 pigment and then stirred at 85 ° C. for 1 hour. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 57.8 parts of magenta pigment derivative MS-10 having the structure shown below.

Figure 2005048114
(合成例11…顔料誘導体MS−11)
合成例2のQc1顔料51.0部に代えてQc2顔料46.8部を使用し、更に、2−アミノ安息香酸24.6部に代えてトビアス酸40.0部を使用したこと以外は合成例2と全く同じ操作をして、化13に示す構造のマゼンタ顔料誘導体MS−11を75.0部で得た。
Figure 2005048114
(Synthesis Example 11: Pigment derivative MS-11)
Synthesis was performed except that 46.8 parts of Qc2 pigment was used instead of 51.0 parts of Qc1 pigment of Synthesis Example 2, and 40.0 parts of tobias acid was used instead of 24.6 parts of 2-aminobenzoic acid. The same operation as in Example 2 was carried out to obtain 75.0 parts of magenta pigment derivative MS-11 having the structure shown in Chemical formula 13.

Figure 2005048114
(合成例12…顔料誘導体CS−1)
反応容器にクロルスルホン酸225.0部を投入し、銅フタロシアニン(以下、「CuPc」と称する。)顔料86.4部を加え、90℃に昇温した後、塩化チオニル63.0部添加して90℃で3時間反応した。反応液を4500部の氷水中に投入し、濾過、水洗してクロルスルホン化CuPc顔料のペーストとし、このペーストを水1500部で再分散し、その中にエチレンジアミン21.6部を添加して、80℃で1時間撹拌した後、反応液を濾過、水洗してエチレンジアミンスルホン化CuPc顔料のペーストとした。
Figure 2005048114
(Synthesis Example 12: Pigment derivative CS-1)
Into a reaction vessel, 225.0 parts of chlorosulfonic acid was added, 86.4 parts of copper phthalocyanine (hereinafter referred to as “CuPc”) pigment was added, the temperature was raised to 90 ° C., and 63.0 parts of thionyl chloride was added. And reacted at 90 ° C. for 3 hours. The reaction solution was poured into 4500 parts of ice water, filtered, washed with water to obtain a chlorosulfonated CuPc pigment paste, this paste was redispersed with 1500 parts of water, and 21.6 parts of ethylenediamine was added thereto, After stirring at 80 ° C. for 1 hour, the reaction solution was filtered and washed with water to obtain an ethylenediaminesulfonated CuPc pigment paste.

一方、別の反応容器に水300部及びソーダ灰9.5部を入れ、その中に2−アミノ安息香酸24.6部を添加、溶解した液を氷で0℃以下に冷却した後、この中に塩化シアヌル33.2部を加えて20℃以下で1時間撹拌して、2−アミノ安息香酸と塩化シアヌルの縮合物の分散液750部を得た。この縮合物の分散液を、先に得ていたエチレンジアミンスルホン化CuPc顔料の再分散液中に加えた後、90℃で2時間撹拌した。濾過、水洗、乾燥及び粉砕して、化14に示す構造のシアン顔料誘導体CS−1を144.5部で得た。   On the other hand, 300 parts of water and 9.5 parts of soda ash were put into another reaction vessel, and 24.6 parts of 2-aminobenzoic acid was added therein, and the dissolved liquid was cooled to 0 ° C. or lower with ice, Inside, 33.2 parts of cyanuric chloride was added and stirred at 20 ° C. or lower for 1 hour to obtain 750 parts of a dispersion of a condensate of 2-aminobenzoic acid and cyanuric chloride. The dispersion of the condensate was added to the previously obtained redispersion of the ethylenediaminesulfonated CuPc pigment, and then stirred at 90 ° C. for 2 hours. Filtration, washing with water, drying and pulverization yielded 144.5 parts of cyan pigment derivative CS-1 having the structure shown in Chemical formula 14.

Figure 2005048114
(合成例13…顔料誘導体CS−2)
合成例3のQc1顔料34.0部に代えてCuPc顔料57.6部を使用したこと以外は合成例3と全く同じ操作をして、化15に示す構造のシアン顔料誘導体CS−2を80.7部で得た。
Figure 2005048114
(Synthesis Example 13 ... Pigment derivative CS-2)
Except that 57.6 parts of CuPc pigment was used in place of 34.0 parts of the Qc1 pigment in Synthesis Example 3, the same operation as in Synthesis Example 3 was performed to obtain 80 Cyan pigment derivative CS-2 having the structure shown in Chemical Formula 15. Obtained in 7 parts.

Figure 2005048114
(合成例14…顔料誘導体CS−3)
合成例4のQc1顔料34.0部に代えてCuPc顔料s7.6部を使用したこと以外は合成例4と全く同じ操作をして、化16に示す構造のシアン顔料誘導体CS−3を96.9部で得た。
Figure 2005048114
(Synthesis Example 14: Pigment derivative CS-3)
A cyan pigment derivative CS-3 having the structure shown in Chemical formula 16 was obtained in the same manner as in Synthesis example 4 except that 7.6 parts of CuPc pigment s7.6 parts were used instead of 34.0 parts of the Qc1 pigment of Synthesis example 4. Obtained in 9 parts.

Figure 2005048114
(合成例15…顔料誘導体CS−4)
合成例5のQc1顔料34.0部に代えてCuPc顔料57.6部を使用したこと以外は合成例5と全く同じ操作をして、化17に示す構造のシアン顔料誘導体CS−4を94.9部で得た。
Figure 2005048114
(Synthesis Example 15: Pigment derivative CS-4)
94 Cyan pigment derivative CS-4 having the structure shown in Chemical formula 17 was obtained in exactly the same manner as in Synthesis example 5 except that 57.6 parts of CuPc pigment was used instead of 34.0 parts of Qc1 pigment in Synthesis example 5. Obtained in 9 parts.

Figure 2005048114
(合成例16…顔料誘導体CS−5)
合成例6のQc1顔料34.0部に代えてCuPc顔料57.6部を使用したこと以外は合成例6と全く同じ操作をして、化18に示す構造のシアン顔料誘導体CS−5を91.9部で得た。
Figure 2005048114
(Synthesis Example 16: Pigment derivative CS-5)
The cyan pigment derivative CS-5 having the structure shown in Chemical formula 18 was obtained in exactly the same manner as in Synthesis example 6 except that 57.6 parts of CuPc pigment was used instead of 34.0 parts of the Qc1 pigment of Synthesis example 6. Obtained in 9 parts.

Figure 2005048114
(合成例17…顔料誘導体CS−6)
合成例1のジメチルキナクリドン顔料34.0部に代えてCuPc顔料57.6部を使用し、更に、4−アミノ安息香酸13.7部に代えてスルファニル酸17.3部を使用したこと以外は合成例全く同じ操作をして、化19に示す構造のシアン顔料誘導体CS−6を84.1部で得た。
Figure 2005048114
(Synthesis Example 17 ... Pigment derivative CS-6)
Except for using 57.6 parts of CuPc pigment instead of 34.0 parts of the dimethylquinacridone pigment of Synthesis Example 1 and further using 17.3 parts of sulfanilic acid instead of 13.7 parts of 4-aminobenzoic acid. Synthesis Example The same procedure was followed to obtain 84.1 parts of cyan pigment derivative CS-6 having the structure shown in Chemical formula 19.

Figure 2005048114
(合成例18…顔料誘導体YS−1)
反応容器にクロルスルホン酸225.0部を投入し、Paliogen Yellow L1560(C.I.No.PY-108、顔料粒径780nm、BASF社製、以下、「Yl1」と称する。)顔料72.2部を加え、70℃に昇温した後、塩化チオニル63.0部添加して70℃で3時間反応した。反応液を4500部の氷水中に投入し、濾過、水洗してクロルスルホン化Yl1顔料のペーストとし、このペーストを水1500部で再分散し、その中にエチレンジアミン21.6部を添加して、80℃で1時間撹拌した後、反応液を濾過、水洗してエチレンジアミンスルホン化Yl1顔料のペーストとした。
Figure 2005048114
(Synthesis Example 18: Pigment derivative YS-1)
Into a reaction vessel, 225.0 parts of chlorosulfonic acid was added, 72.2 parts of Paliogen Yellow L1560 (CI No. PY-108, pigment particle size 780 nm, manufactured by BASF, hereinafter referred to as “Yl1”) pigment was added, After raising the temperature to 70 ° C., 63.0 parts of thionyl chloride was added and reacted at 70 ° C. for 3 hours. The reaction solution was poured into 4500 parts of ice water, filtered and washed with water to obtain a paste of chlorosulfonated Yl1 pigment. This paste was redispersed with 1500 parts of water, and 21.6 parts of ethylenediamine was added thereto. After stirring at 80 ° C. for 1 hour, the reaction solution was filtered and washed with water to obtain an ethylenediaminesulfonated Yl1 pigment paste.

一方、別の反応容器に水300部及びソーダ灰9.5部を入れ、その中に2−アミノ安息香酸24.6部を添加、溶解した液を氷で0℃以下に冷却した後、この中に塩化シアヌル33.2部を加えて20℃以下で1時間撹拌して、2−アミノ安息香酸と塩化シアヌルの縮合物の分散液750部を得た。この縮合物の分散液を、先に得ていたエチレンジアミンスルホン化Yl1顔料の再分散液中に加えた後、90℃で2時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化20に示す構造のイエロー顔料誘導体YS−1を119.7部で得た。   On the other hand, 300 parts of water and 9.5 parts of soda ash were put into another reaction vessel, and 24.6 parts of 2-aminobenzoic acid was added therein, and the dissolved liquid was cooled to 0 ° C. or lower with ice, Inside, 33.2 parts of cyanuric chloride was added and stirred at 20 ° C. or lower for 1 hour to obtain 750 parts of a dispersion of a condensate of 2-aminobenzoic acid and cyanuric chloride. The dispersion of this condensate was added to the previously obtained redispersion of the ethylenediaminesulfonated Yl1 pigment, and then stirred at 90 ° C. for 2 hours. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 119.7 parts of yellow pigment derivative YS-1 having the structure shown in Chemical formula 20.

Figure 2005048114
(合成例19…顔料誘導体YS−2)
反応容器に98%硫酸505.0部を投入し、Yl1顔料72.2部を20〜30℃で加え、30℃で1時間撹拌した後、フタルイミド17.6部及びパラホルムアルデヒド3.6部を加えて、70℃で3時間反応した。反応液を5000部の氷水中に投入し、濾過、水洗してフタルイミドメチル化Yl1顔料のペーストを得た。
Figure 2005048114
(Synthesis example 19 ... pigment derivative YS-2)
In a reaction vessel, 505.0 parts of 98% sulfuric acid was added, 72.2 parts of Yl1 pigment was added at 20 to 30 ° C. and stirred at 30 ° C. for 1 hour, and then 17.6 parts of phthalimide and 3.6 parts of paraformaldehyde were added. In addition, it reacted at 70 ° C. for 3 hours. The reaction solution was poured into 5000 parts of ice water, filtered and washed with water to obtain a phthalimidomethylated Yl1 pigment paste.

次に、反応容器中に、上記のフタルイミドメチル化Yl1顔料のペーストを水1000部で洗い出し撹拌し、その中に30%水酸化ナトリウム水溶液60.7部を投入して、85℃で3時間撹拌した後、35%塩酸300.0部を投入し、85℃で3時間撹拌した。室温に冷却後、30%水酸化ナトリウム水溶液37.5部を加え、濾過、水洗してアミノメチル化Yl1顔料のペーストを得、これを水1500部で再分散した。   Next, the above phthalimidomethylated Yl1 pigment paste is washed out with 1000 parts of water and stirred in a reaction vessel, and then 60.7 parts of 30% aqueous sodium hydroxide solution is added to it and stirred at 85 ° C. for 3 hours. After that, 300.0 parts of 35% hydrochloric acid was added and stirred at 85 ° C. for 3 hours. After cooling to room temperature, 37.5 parts of a 30% aqueous sodium hydroxide solution was added, filtered and washed with water to obtain an aminomethylated Yl1 pigment paste, which was redispersed in 1500 parts of water.

一方、別の反応容器に水150部及びソーダ灰5.4部を入れ、その中にタウリン12.5部を添加、溶解した液を氷で0℃以下に冷却した後、この中に塩化シアヌル18.5部を加えて20℃以下で1時間撹拌して、タウリンと塩化シアヌルの脱塩酸縮合物の分散液500部を得た。この縮合物の分散液を、先に得ていたアミノメチル化Yl1顔料の再分散液中に加えた後、60℃で1時間撹拌した。更に、ジメチルアミノプロピルアミン20.4部を加えた後、90℃で1時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化21に示す構造のイエロー顔料誘導体YS−2を106.8部で得た。   On the other hand, 150 parts of water and 5.4 parts of soda ash are put into another reaction vessel, 12.5 parts of taurine is added therein, and the dissolved liquid is cooled to 0 ° C. or lower with ice, and then cyanuric chloride is added thereto. 18.5 parts was added and stirred at 20 ° C. or lower for 1 hour to obtain 500 parts of a dispersion of dehydrochlorinated condensate of taurine and cyanuric chloride. The dispersion of this condensate was added to the previously obtained re-dispersion of aminomethylated Yl1 pigment, and then stirred at 60 ° C. for 1 hour. Furthermore, after adding 20.4 parts of dimethylaminopropylamine, it stirred at 90 degreeC for 1 hour. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 106.8 parts of yellow pigment derivative YS-2 having the structure shown in Chemical formula 21.

Figure 2005048114
(合成例20…顔料誘導体YS−3)
反応容器に98%硫酸713.0部を投入し、Paliotol Yellow L1820(C.I.No.PY-139、顔料粒径70nm、BASF社製、以下、「Yl2」と称する。)顔料55.2部、モリブデン酸アンモニウム1.3部及び硫酸ヒドロキシルアミン113.8部を50℃以下で加え、55℃で1時間撹拌した後、反応液を3500部の水中に投入し、濾過、水洗してアミノ化Yl2顔料のペーストを得た。このペーストを1000部の水中に投入し再分散する。
Figure 2005048114
(Synthesis Example 20: pigment derivative YS-3)
A reaction vessel was charged with 713.0 parts of 98% sulfuric acid, Paliotol Yellow L1820 (CI No. PY-139, pigment particle size 70 nm, manufactured by BASF, hereinafter referred to as “Yl2”) 55.2 parts of pigment, molybdic acid After adding 1.3 parts of ammonium and 113.8 parts of hydroxylamine sulfate at 50 ° C. or lower and stirring at 55 ° C. for 1 hour, the reaction solution was poured into 3500 parts of water, filtered, washed with water, and aminated Y12 pigment. A paste was obtained. This paste is put into 1000 parts of water and redispersed.

一方、別の反応容器に水120部を入れ、その中にスルファニル酸20.8部を添加した液を氷で0℃以下に冷却した後、この中に塩化シアヌル18.5部を加えて20℃以下で1時間撹拌して、分散液500部を得た。この分散液を、先に得ていたアミノ化Yl2顔料の再分散液中に加えた後、60℃で1時間撹拌した。更に、ジエチルアミノプロピルアミン26.0部を加えた後、90℃で2時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化22に示す構造のイエロー顔料誘導体YS−3を114.0部で得た。   On the other hand, 120 parts of water was put into another reaction vessel, and a solution containing 20.8 parts of sulfanilic acid was cooled to 0 ° C. or lower with ice, and then 18.5 parts of cyanuric chloride was added thereto. The mixture was stirred at a temperature of not higher than 1 ° C. for 1 hour to obtain 500 parts of a dispersion. This dispersion was added to the previously obtained redispersion of the aminated Yl2 pigment and then stirred at 60 ° C. for 1 hour. Furthermore, after adding 26.0 parts of diethylaminopropylamine, it stirred at 90 degreeC for 2 hours. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 114.0 parts of a yellow pigment derivative YS-3 having the structure shown in Chemical formula 22.

Figure 2005048114
(合成例21…顔料誘導体YS−4)
反応容器に98%硫酸713.0部を投入し、Yl2顔料55.2部、モリブデン酸アンモニウム1.3部及び硫酸ヒドロキシルアミン113.8部を50℃以下で加え、65℃で3時間撹拌した後、反応液を5000部の氷水中に投入し、濾過、水洗してアミノ化Yl2顔料のペーストを得た。このペーストを1000部の水中に投入して再分散した。
Figure 2005048114
(Synthesis Example 21: Pigment derivative YS-4)
In a reaction vessel, 713.0 parts of 98% sulfuric acid was added, 55.2 parts of Yl2 pigment, 1.3 parts of ammonium molybdate and 113.8 parts of hydroxylamine sulfate were added at 50 ° C. or less, and the mixture was stirred at 65 ° C. for 3 hours. Thereafter, the reaction solution was put into 5000 parts of ice water, filtered and washed with water to obtain a paste of aminated Y12 pigment. This paste was thrown into 1000 parts of water and redispersed.

一方、別の反応容器に水200部及びソーダ灰10.6部を入れ、その中に2−アミノ安息香酸27.4部を添加して溶解した液中に、塩化シアヌル37.0部を加えて40℃で1時間撹拌して、分散液500部を得た。この分散液を、先に得ていたアミノ化Yl2顔料の再分散液中に加えた後、90℃で3時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化23に示す構造のイエロー顔料誘導体YS−4を102.9部で得た。   Meanwhile, in another reaction vessel, 200 parts of water and 10.6 parts of soda ash are added, and 27.4 parts of 2-aminobenzoic acid is added and dissolved therein, and 37.0 parts of cyanuric chloride are added. And stirred at 40 ° C. for 1 hour to obtain 500 parts of a dispersion. This dispersion was added to the previously obtained redispersion of the aminated Yl2 pigment and then stirred at 90 ° C. for 3 hours. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 102.9 parts of a yellow pigment derivative YS-4 having the structure shown in Chemical Formula 23.

Figure 2005048114
(合成例22…顔料誘導体YS−5)
合成例1のジメチルキナクリドン顔料34.0部に代えてYl1顔料72.2部を使用し、更に、4−アミノ安息香酸13.7部に代えてスルファニル酸17.3部を使用したこと以外は合成例1と全く同じ操作をして、化24に示す構造のイエロー顔料誘導体YS−5を107.6部で得た。
Figure 2005048114
(Synthesis Example 22: Pigment derivative YS-5)
Except for using 72.2 parts of Yl1 pigment instead of 34.0 parts of the dimethylquinacridone pigment of Synthesis Example 1, and further using 17.3 parts of sulfanilic acid instead of 13.7 parts of 4-aminobenzoic acid. The same operation as in Synthesis Example 1 was performed to obtain 107.6 parts of yellow pigment derivative YS-5 having the structure shown in Chemical Formula 24.

Figure 2005048114
(合成例23…顔料誘導体YS−6)
反応容器に98%硫酸713.0部を投入し、Yl2顔料55.2部、モリブデン酸アンモニウム1.3部及び硫酸ヒドロキシルアミン113.8部を50℃以下で加え、55℃で1時間撹拌した後、反応液を3500部の水中に投入し、濾過、水洗してアミノ化Yl2顔料のペーストを得た。このペーストを1000部の水中に投入し再分散した。
Figure 2005048114
(Synthesis Example 23 ... Pigment derivative YS-6)
In a reaction vessel, 713.0 parts of 98% sulfuric acid was added, 55.2 parts of Yl2 pigment, 1.3 parts of ammonium molybdate and 113.8 parts of hydroxylamine sulfate were added at 50 ° C. or lower and stirred at 55 ° C. for 1 hour. Thereafter, the reaction solution was poured into 3500 parts of water, filtered and washed with water to obtain an aminated Yl2 pigment paste. This paste was put into 1000 parts of water and redispersed.

一方、別の反応容器に水120部を入れ、その中にタウリン37.5部を添加した液を氷で0℃以下に冷却した後、この中に塩化シアヌル18.5部を加えて20℃以下で1時間撹拌して、分散液500部を得た。この分散液を、先に得ていたアミノ化Yl2顔料の再分散液中に加えた後、85℃で1時間撹拌した。その後、濾過、水洗、乾燥及び粉砕して、化25に示す構造の構造のイエロー顔料誘導体YS−6を85.7部で得た。   On the other hand, 120 parts of water was put into another reaction vessel, and a solution obtained by adding 37.5 parts of taurine was cooled to 0 ° C. or lower with ice, and then 18.5 parts of cyanuric chloride was added thereto and 20 ° C. The mixture was stirred for 1 hour to obtain 500 parts of a dispersion. This dispersion was added to the previously obtained redispersion of the aminated Yl2 pigment, and then stirred at 85 ° C. for 1 hour. Thereafter, filtration, washing with water, drying and pulverization were carried out to obtain 85.7 parts of a yellow pigment derivative YS-6 having a structure shown in Chemical Formula 25.

Figure 2005048114
〔顔料の調製〕
本発明の画像記録用イエロー、マゼンタ及びシアン顔料を、以下のような方法で製造した。
Figure 2005048114
(Preparation of pigment)
The yellow, magenta and cyan pigments for image recording of the present invention were produced by the following method.

(実施例1)
双腕型混和機(ニーダー)に、キナクリドン顔料(Magenta RT-150DL、顔料粒径250nm、C.I.No.PR-122、CIBA社製)を100部、マゼンタ顔料誘導体MS−1を7部、及び粉末芒硝を1000部を投入し、次いで、ジエチレングリコール200部を投入して、60〜65℃にて12時間混練摩砕を行った。次に、摩砕物を水20000部に投入し、70〜80℃にて1時間保温撹拌を行った。次に、常法に従ってイオン交換水で水洗、濾別を行い、本実施例のマゼンタの顔料分が38.3%のペースト269部を得た。なお、本顔料の1次粒子径は85nmであった。
(Example 1)
In a double-armed kneader (kneader), 100 parts of quinacridone pigment (Magenta RT-150DL, pigment particle size 250 nm, CI No. PR-122, manufactured by CIBA), 7 parts of magenta pigment derivative MS-1, and powdered mirabilite Was added, and then 200 parts of diethylene glycol was added, followed by kneading and grinding at 60 to 65 ° C. for 12 hours. Next, the ground product was put into 20000 parts of water, and the mixture was stirred while keeping at 70 to 80 ° C. for 1 hour. Next, it was washed with ion-exchanged water and filtered according to a conventional method to obtain 269 parts of a paste having a magenta pigment content of 38.3% in this example. In addition, the primary particle diameter of this pigment was 85 nm.

(実施例2)
双腕型混和機(ニーダー)に、キナクリドン顔料(Magenta RT-150DL、顔料粒径250nm、C.I.No.PR-122、CIBA社製)を100部、マゼンタ顔料誘導体MS−4を2.5部、及び粉末芒硝1000部を投入し、次いで、ジエチレングリコール300部を投入して、60〜65℃にて15時間混練摩砕を行った。次に、摩砕物を水20000部に投入し、70〜80℃にて1時間保温撹拌を行った。次に、常法に従って濾過、イオン交換水で水洗、乾燥及び粉砕を行い、本実施例のマゼンタ顔料97部を得た。なお、本顔料の1次粒子径は80nmであった。
(Example 2)
In a double arm mixer (kneader), 100 parts of quinacridone pigment (Magenta RT-150DL, pigment particle size 250 nm, CI No. PR-122, manufactured by CIBA), 2.5 parts of magenta pigment derivative MS-4, and Next, 1000 parts of powdered sodium sulfate was added, and then 300 parts of diethylene glycol was added, and kneading and grinding were performed at 60 to 65 ° C. for 15 hours. Next, the ground product was put into 20000 parts of water, and the mixture was stirred while keeping at 70 to 80 ° C. for 1 hour. Next, filtration, washing with ion-exchanged water, drying and pulverization were performed according to a conventional method to obtain 97 parts of a magenta pigment of this example. The primary particle size of the pigment was 80 nm.

(実施例3)
実施例1に於けるマゼンタ顔料誘導体MS−1の7部に代えて、マゼンタ顔料誘導体MS−2を5部で使用したこと以外は実施例1と同じ操作を行い、顔料の1次粒子径が92nmで、顔料分が35.6%のペースト280部を得た。
(Example 3)
The same procedure as in Example 1 was performed except that 5 parts of the magenta pigment derivative MS-2 was used instead of 7 parts of the magenta pigment derivative MS-1 in Example 1, and the primary particle diameter of the pigment was changed. 280 parts of paste with a pigment content of 35.6% at 92 nm were obtained.

(実施例4)
キナクリドン顔料(Toner Magenta E02、顔料粒径90nm、C.I.No.PR-122、クラリアント社製)の100部と、マゼンタ顔料誘導体MS−6の3部とを均一に混合して配合して本実施例のマゼンタ顔料を得た。
(Example 4)
100 parts of quinacridone pigment (Toner Magenta E02, pigment particle size 90 nm, CI No. PR-122, manufactured by Clariant) and 3 parts of magenta pigment derivative MS-6 were mixed and blended uniformly. A magenta pigment was obtained.

(実施例5)
実施例4のマゼンタ顔料誘導体MS−6の3部に代えて、マゼンタ顔料誘導体MS−6を5部で使用したこと以外は実施例4と全く同じ操作をして、本実施例のマゼンタ顔料を得た。
(Example 5)
The magenta pigment derivative MS-6 of this example was treated in exactly the same manner as in Example 4 except that 5 parts of the magenta pigment derivative MS-6 was used instead of 3 parts of the magenta pigment derivative MS-6 of Example 4. Obtained.

(実施例6)
実施例4のマゼンタ顔料誘導体MS−6の3部に代えて、マゼンタ顔料誘導体MS−3を10部で使用したこと以外は実施例4と全く同じ操作をして、本実施例のマゼンタ顔料を得た。
(Example 6)
The magenta pigment derivative MS-3 of Example 4 was used in exactly the same manner as in Example 4 except that 10 parts of the magenta pigment derivative MS-3 was used instead of 3 parts of the magenta pigment derivative MS-6 of Example 4. Obtained.

(比較例1)
実施例1におけるマゼンタ顔料誘導体MS−1に代えて、マゼンタ顔料誘導体MS−9を使用したこと以外は実施例1と同じ操作を行い、顔料の1次粒子径が78nmで、顔料分が35.7%のペースト285部を得た。このペーストの一部を乾燥、粉砕した粉末タイプも用意した。
(Comparative Example 1)
The same operation as in Example 1 was performed except that the magenta pigment derivative MS-9 was used instead of the magenta pigment derivative MS-1 in Example 1, the primary particle diameter of the pigment was 78 nm, and the pigment content was 35. 285 parts of 7% paste were obtained. A powder type in which a part of this paste was dried and pulverized was also prepared.

(比較例2)
キナクリドン顔料(Toner Magenta E02、顔料粒径90nm、C.I.No.PR-122、クラリアント社製)の100部と、マゼンタ顔料誘導体MS−10の10部とを均一に混合して、本比較例のマゼンタ顔料を得た。
(Comparative Example 2)
100 parts of quinacridone pigment (Toner Magenta E02, pigment particle size 90 nm, CI No. PR-122, manufactured by Clariant) and 10 parts of magenta pigment derivative MS-10 were mixed uniformly to obtain the magenta pigment of this comparative example. Got.

(比較例3)
比較例2のマゼンタ顔料誘導体MS−10の10部を混合することなく、キナクリドン顔料(Toner Magenta E02)のみを本比較例の顔料とした。
(Comparative Example 3)
Without mixing 10 parts of the magenta pigment derivative MS-10 of Comparative Example 2, only the quinacridone pigment (Toner Magenta E02) was used as the pigment of this Comparative Example.

(実施例7)
双腕型混和機(ニーダー)に、キナクリドン顔料(Magenta RT-238Dクルード、顔料粒径500nm、C.I.No.PV-19、CIBA社製)100部と、マゼンタ顔料誘導体MS−7の6部と、粉末芒硝1000部とを投入し、次いで、ジエチレングリコール250部を投入して、60〜65℃にて15時間混練摩砕を行った。次に、摩砕物を水20000部に投入し、70〜80℃にて1時間保温撹拌を行った。次に、常法に従ってイオン交換水で水洗、濾別を行い、本実施例のマゼンタの顔料分が42.2%のペースト239部を得た。なお、本顔料の1次粒子径は96nmであった。
(Example 7)
In a double-armed blender (kneader), 100 parts of quinacridone pigment (Magenta RT-238D Crude, pigment particle size 500 nm, CI No. PV-19, manufactured by CIBA), 6 parts of magenta pigment derivative MS-7, powder Then, 1000 parts of mirabilite was added, then 250 parts of diethylene glycol was added, and kneading and grinding were performed at 60 to 65 ° C. for 15 hours. Next, the ground product was put into 20000 parts of water, and the mixture was stirred while keeping at 70 to 80 ° C. for 1 hour. Next, it was washed with ion-exchanged water and filtered according to a conventional method to obtain 239 parts of a paste having a magenta pigment content of 42.2% in this example. The primary particle diameter of this pigment was 96 nm.

(実施例8)
キナクリドン顔料(Hostaperm Red ER02、顔料粒径70nm、C.I.No.PR-19、クラリアント社製)100部と、マゼンタ顔料誘導体MS−8の8部とを均一に混合して、本実施例のマゼンタ顔料を得た。
(Example 8)
100 parts of quinacridone pigment (Hostaperm Red ER02, pigment particle size 70 nm, CI No. PR-19, manufactured by Clariant) and 8 parts of magenta pigment derivative MS-8 were uniformly mixed to obtain the magenta pigment of this example. Obtained.

(比較例4)
実施例7におけるマゼンタ顔料誘導体MS−7に代えて、マゼンタ顔料誘導体MS−11を使用したこと以外は実施例7と同じ操作を行い、顔料の1次粒子径が83nmで、顔料分が41.1%のペースト243部を得た。このペーストの一部を乾燥、粉砕した粉末タイプも用意した。
(Comparative Example 4)
The same operation as in Example 7 was performed except that the magenta pigment derivative MS-11 was used instead of the magenta pigment derivative MS-7 in Example 7, the primary particle diameter of the pigment was 83 nm, and the pigment content was 41. 243 parts of 1% paste were obtained. A powder type in which a part of this paste was dried and pulverized was also prepared.

(実施例9)
双腕型混和機(ニーダー)に、フタロシアニン顔料(Cyanine Blue GPクルード、顔料粒径600nm、C.I.No.PB-15:3、山陽色素社製)100部と、シアン顔料誘導体CS−1を5部と、粉末芒硝500部とを投入し、次いで、ジエチレングリコール120部を投入して、60〜65℃にて20時間混練摩砕を行った。次に、摩砕物を水20000部に投入し、70〜80℃にて1時間保温撹拌を行った。次に、常法に従ってイオン交換水で水洗、濾別を行い、本実施例のシアンの顔料分が40.1%のペースト249部を得た。なお、本顔料の1次粒子径は73nmであった。
Example 9
In a double-armed kneader (kneader), 100 parts of phthalocyanine pigment (Cyanine Blue GP Crude, pigment particle size 600 nm, CI No. PB-15: 3, manufactured by Sanyo Dye), 5 parts of cyan pigment derivative CS-1 Then, 500 parts of powdered sodium sulfate was added, and then 120 parts of diethylene glycol was added, followed by kneading and grinding at 60 to 65 ° C. for 20 hours. Next, the ground product was put into 20000 parts of water, and the mixture was stirred while keeping at 70 to 80 ° C. for 1 hour. Next, it was washed with ion-exchanged water and filtered according to a conventional method to obtain 249 parts of a paste having a cyan pigment content of 40.1% in this example. The primary particle diameter of this pigment was 73 nm.

(実施例10)
双腕型混和機(ニーダー)に、フタロシアニン顔料(Cyanine Blue GPクルード、顔料粒径600nm、C.I.No.PB-15:3、山陽色素社製)100部と、シアン顔料誘導体CS−3を6部と、粉末芒硝1000部とを投入し、次いで、ジエチレングリコール200部を投入して、60〜65℃にて15時間混練摩砕を行った。次に、摩砕物を水20000部に投入し、70〜80℃にて1時間保温撹拌を行った。次に、常法に従って濾過、イオン交換水で水洗、乾燥及び粉砕を行い、本実施例のシアン顔料101部を得た。なお、本顔料の1次粒子径は84nmであった。
(Example 10)
In a double-armed kneader (kneader), 100 parts of phthalocyanine pigment (Cyanine Blue GP Crude, pigment particle size 600 nm, CI No. PB-15: 3, manufactured by Sanyo Dye), 6 parts of cyan pigment derivative CS-3 Then, 1000 parts of powdered sodium sulfate was added, and then 200 parts of diethylene glycol was added, and kneading and grinding were performed at 60 to 65 ° C. for 15 hours. Next, the ground product was put into 20000 parts of water, and the mixture was stirred while keeping at 70 to 80 ° C. for 1 hour. Next, filtration, washing with ion-exchanged water, drying and pulverization were performed according to a conventional method to obtain 101 parts of a cyan pigment of this example. In addition, the primary particle diameter of this pigment was 84 nm.

(実施例11)
実施例10におけるシアン顔料誘導体CS−3の6部に代えて、シアン顔料誘導体CS−2を10部で使用したこと以外は実施例10と同じ操作を行い、顔料の1次粒子径が70nmの本実施例のシアン顔料106部を得た。
(Example 11)
The same operation as in Example 10 was performed except that 10 parts of the cyan pigment derivative CS-2 was used instead of 6 parts of the cyan pigment derivative CS-3 in Example 10, and the primary particle diameter of the pigment was 70 nm. 106 parts of the cyan pigment of this example were obtained.

(実施例12)
フタロシアニン顔料(Cyanine Blue KRO、顔料粒径80nm、C.I.No.PB-15:3、山陽色素社製)100部と、シアン顔料誘導体CS−4の7.5部とを均一に混合して、本実施例のシアン顔料を得た。
(Example 12)
100 parts of phthalocyanine pigment (Cyanine Blue KRO, pigment particle size 80 nm, CI No. PB-15: 3, manufactured by Sanyo Dye Co., Ltd.) and 7.5 parts of cyan pigment derivative CS-4 were uniformly mixed to carry out the present invention. An example cyan pigment was obtained.

(実施例13)
フタロシアニン顔料(Cyanine Blue KRO、顔料粒径80nm、C.I.No.PB-15:3、山陽色素社製)100部と、シアン顔料誘導体CS−5の5部とを均一に混合して、本実施例のシアン顔料を得た。
(Example 13)
100 parts of phthalocyanine pigment (Cyanine Blue KRO, pigment particle size 80 nm, CI No. PB-15: 3, manufactured by Sanyo Dye Co., Ltd.) and 5 parts of cyan pigment derivative CS-5 were uniformly mixed, A cyan pigment was obtained.

(比較例5)
実施例9におけるシアン顔料誘導体CS−1に代えて、シアン顔料誘導体CS−6を使用したこと以外は実施例9と同じ操作を行い、顔料の1次粒子径が70nmで、顔料分が38.0%のペースト260部を得た。このペーストの一部を乾燥、粉砕した粉末タイプも用意した。
(Comparative Example 5)
The same operation as in Example 9 was performed except that the cyan pigment derivative CS-6 was used instead of the cyan pigment derivative CS-1 in Example 9, the primary particle diameter of the pigment was 70 nm, and the pigment content was 38. 260 parts of 0% paste were obtained. A powder type in which a part of this paste was dried and pulverized was also prepared.

(比較例6)
フタロシアニン顔料(Cyanine Blue KRO、顔料粒径80nm、C.I.No.PB-15:3、山陽色素社製)のみを本比較例の顔料とした。
(Comparative Example 6)
Only the phthalocyanine pigment (Cyanine Blue KRO, pigment particle size 80 nm, CI No. PB-15: 3, manufactured by Sanyo Dye) was used as the pigment of this comparative example.

(実施例14)
双腕型混和機(ニーダー)に、黄色顔料(Paliogen Yellow L1560、C.I.No.PY-108、顔料粒径780nm、BASF社製)100部及びYS−1のイエロー顔料誘導体8部と、粉末芒硝1000部とを投入し、次いで、ジエチレングリコール200部を投入して、60〜65℃にて12時間混練摩砕を行った。次に、摩砕物を水20000部に投入し、70〜80℃にて1時間保温撹拌を行った。次に、常法に従ってイオン交換水で水洗、濾別を行い、本実施例のイエローの顔料分が38.0%のペースト270部を得た。なお、本顔料の1次粒子径は95nmであった。このペーストの一部を乾燥、粉砕した粉末タイプも用意した。
(Example 14)
In a double-armed kneader (kneader), 100 parts of yellow pigment (Paliogen Yellow L1560, CI No. PY-108, pigment particle size 780 nm, manufactured by BASF) and 8 parts of yellow pigment derivative of YS-1 and 1000 parts of powdered sodium nitrate Then, 200 parts of diethylene glycol was added, and kneading and grinding were performed at 60 to 65 ° C. for 12 hours. Next, the ground product was put into 20000 parts of water, and the mixture was stirred while keeping at 70 to 80 ° C. for 1 hour. Next, it was washed with ion-exchanged water and filtered according to a conventional method, and 270 parts of a paste having a yellow pigment content of 38.0% was obtained. The primary particle diameter of this pigment was 95 nm. A powder type in which a part of this paste was dried and pulverized was also prepared.

(実施例15)
双腕型混和機(ニーダー)に、黄色顔料(Paliogen Yellow L1560、C.I.No.PY-108、顔料粒径780nm、BASF社製)100部と、イエロー顔料誘導体YS−2を6部と、粉末芒硝1000部とを投入し、次いで、ジエチレングリコール250部を投入して、60〜65℃にて15時間混練摩砕を行った。次に、摩砕物を水20000部に投入し、70〜80℃にて1時間保温撹拌を行った。次に、常法に従ってイオン交換水で水洗、乾燥、粉砕を行い、本実施例のイエロー102部を得た。なお、本顔料の1次粒子径は85n mであった。
(Example 15)
In a double arm type kneader (kneader), 100 parts of yellow pigment (Paliogen Yellow L1560, CI No. PY-108, pigment particle size 780 nm, manufactured by BASF), 6 parts of yellow pigment derivative YS-2, Then, 250 parts of diethylene glycol was added, and kneading and grinding were performed at 60 to 65 ° C. for 15 hours. Next, the ground product was put into 20000 parts of water, and the mixture was stirred while keeping at 70 to 80 ° C. for 1 hour. Next, it was washed with ion-exchanged water, dried and pulverized according to a conventional method to obtain 102 parts of yellow of this example. In addition, the primary particle diameter of this pigment was 85 nm.

(比較例7)
実施例14におけるイエロー顔料誘導体YS−1に代えて、イエロー顔料誘導体YS−5を使用したこと以外は実施例14と同じ操作を行い、顔料の1次粒子径が82nmで、顔料分が42.4%のペースト242部を得た。このペーストの一部を乾燥、粉砕した粉末タイプも用意した。
(Comparative Example 7)
The same operation as in Example 14 was performed except that the yellow pigment derivative YS-5 was used instead of the yellow pigment derivative YS-1 in Example 14, the primary particle diameter of the pigment was 82 nm, and the pigment content was 42. 242 parts of 4% paste were obtained. A powder type in which a part of this paste was dried and pulverized was also prepared.

(実施例16)
双腕型混和機(ニーダー)に、黄色顔料(Paliotol Yellow L1820、C.I.No.PY-139、顔料粒径 70nm、BASF社製)100部と、イエロー顔料誘導体YS−3を5部と、粉末芒硝1000部とを投入し、次いで、ジエチレングリコール250部を投入して、60〜65℃にて20時間混練摩砕を行った。次に、摩砕物を水20000部に投入し、70〜80℃にて1時間保温撹拌を行った。次に、常法に従ってイオン交換水で水洗、乾燥、粉砕を行い、本実施例のイエロー100部を得た。なお、本顔料の1次粒子径は78nmであった。
(Example 16)
In a double-armed kneader (kneader), 100 parts of yellow pigment (Paliotol Yellow L1820, CI No. PY-139, pigment particle size 70 nm, manufactured by BASF), 5 parts of yellow pigment derivative YS-3, and powdered sodium nitrate 1000 Then, 250 parts of diethylene glycol was added, and kneading and grinding were performed at 60 to 65 ° C. for 20 hours. Next, the ground product was put into 20000 parts of water, and the mixture was stirred while keeping at 70 to 80 ° C. for 1 hour. Next, it was washed with ion-exchanged water, dried and pulverized according to a conventional method to obtain 100 parts of yellow of this example. In addition, the primary particle diameter of this pigment was 78 nm.

(実施例17)
双腕型混和機(ニーダー)に、黄色顔料(Paliotol Yellow L1820、C.I.No.PY-139、顔料粒径70nm、BASF社製)100部と、イエロー顔料誘導体YS−4を3部と、粉末芒硝1000部とを投入し、次いで、ジエチレングリコール250部を投入して、60〜65℃にて15時間混練摩砕を行った。次に、摩砕物を水20000部に投入し、70〜80℃にて1時間保温撹拌を行った。次に、常法に従ってイオン交換水で水洗、濾別を行い、本実施例のイエローの顔料分が37.3%のペースト262部を得た。なお、本顔料の1次粒子径は84nmであった。このペーストの一部を乾燥、粉砕した粉末タイプも用意した。
(Example 17)
In a double-armed kneader (kneader), 100 parts of yellow pigment (Paliotol Yellow L1820, CI No. PY-139, pigment particle size 70 nm, manufactured by BASF), 3 parts of yellow pigment derivative YS-4, and powdered sodium nitrate 1000 Then, 250 parts of diethylene glycol was added, and kneading and grinding were performed at 60 to 65 ° C. for 15 hours. Next, the ground product was put into 20000 parts of water, and the mixture was stirred while keeping at 70 to 80 ° C. for 1 hour. Next, it was washed with ion-exchanged water and filtered according to a conventional method to obtain 262 parts of a paste having a yellow pigment content of 37.3% in this example. In addition, the primary particle diameter of this pigment was 84 nm. A powder type in which a part of this paste was dried and pulverized was also prepared.

(比較例8)
実施例16におけるイエロー顔料誘導体YS−3に代えて、イエロー顔料誘導体YS−6を使用したこと以外は実施例16と同じ操作を行い、顔料の1次粒子径が76nmで、顔料分が41.8%のペースト239部を得た。このペーストの一部を乾燥、粉砕した粉末タイプも用意した。
(Comparative Example 8)
The same operation as in Example 16 was performed except that the yellow pigment derivative YS-6 was used instead of the yellow pigment derivative YS-3 in Example 16, the primary particle diameter of the pigment was 76 nm, and the pigment content was 41. 239 parts of 8% paste were obtained. A powder type in which a part of this paste was dried and pulverized was also prepared.

(比較例9)
比較例8のイエロー顔料誘導体YS−6の5部を混合することなく、Paliotol Yellow L1820のみを本比較例の顔料とした。
(Comparative Example 9)
Without mixing 5 parts of the yellow pigment derivative YS-6 of Comparative Example 8, only Paliotol Yellow L1820 was used as the pigment of this Comparative Example.

〔インクジェット用インキ及びカラートナーの調製、試験及び評価〕
以上のようにして得られた顔料につき、画像記録用途の例として、インクジェット用インキ及びカラートナーについて以下に説明する。
[Preparation, testing and evaluation of inkjet ink and color toner]
With respect to the pigment obtained as described above, ink jet ink and color toner will be described below as examples of image recording applications.

(インクジェット用インキの調製)
実施例1、3、4、5、7、9、12、13、14、17及び比較例1〜9のペースト状又は粉末状の各々の顔料20部(顔料分で)を、アクリル樹脂分散剤(ジョンソンポリマー社製、ジョンクリル61J)12.5部、エチレングリコール10部、及びジエタノールアミン0.5部をサンドミル用容器に入れ、更に、合計の重量が100部となるように純水を加えた後、サンドミルで2時間分散させ、顔料分20%のインクジェット用インクを調製した。
(Preparation of inkjet ink)
20 parts of each of the paste-like or powder-like pigments (in pigment content) of Examples 1, 3, 4, 5, 7, 9, 12, 13, 14, 17 and Comparative Examples 1 to 9 were added to an acrylic resin dispersant. (Johnson Polymer Co., Ltd., John Crill 61J) 12.5 parts, ethylene glycol 10 parts, and diethanolamine 0.5 parts were placed in a sand mill container, and pure water was added so that the total weight would be 100 parts. Thereafter, the mixture was dispersed in a sand mill for 2 hours to prepare an inkjet ink having a pigment content of 20%.

(インクジェット用インキの試験、評価法)
<粘度>
顔料分20%のインクジェット用インクを調製後の粘度(初期粘度)及び調製後のインクジェット用インクを40℃で7日間保持した後の粘度(分散体の経時安定性の目安とする)を、E型粘度計((株)トキメック製、商品名:ELD-60型)を用いて測定した。
(Inkjet ink testing and evaluation methods)
<Viscosity>
The viscosity (initial viscosity) after preparing an inkjet ink having a pigment content of 20% and the viscosity after maintaining the prepared inkjet ink at 40 ° C. for 7 days (as a measure of the stability over time of the dispersion) It was measured using a type viscometer (trade name: ELD-60 type, manufactured by Tokimec Co., Ltd.).

<顔料粒径>
顔料分20%のインクジェット用インクを、光散乱法粒度分布測定装置(大塚電子(株)製、商品名:LPA-3100型)を用いて、その分散体の平均粒径(単位:nm)を測定した。
<Pigment particle size>
Using a light scattering particle size distribution analyzer (trade name: LPA-3100, manufactured by Otsuka Electronics Co., Ltd.), the average particle size (unit: nm) of the dispersion was measured using an inkjet ink having a pigment content of 20%. It was measured.

<OD値>
顔料分20%のインクジェット用インクを、顔料分が4%になるように、溶剤(水/グリセリン=80/20)で稀釈した分散体を調製した後、展色紙(SEIKO-EPSON/スーパーファインMJA4SP1)に0.15mmバーコーターで展色した。この試料のOD値をGretag Macbeth社製のRD−19(I)型で測定した。
<OD value>
After preparing a dispersion prepared by diluting an ink-jet ink with a pigment content of 20% with a solvent (water / glycerin = 80/20) so that the pigment content is 4%, color developing paper (SEIKO-EPSON / Superfine MJA4SP1 ) With a 0.15 mm bar coater. The OD value of this sample was measured with a RD-19 (I) model manufactured by Gretag Macbeth.

以上の試験結果を表1にまとめて示した。   The above test results are summarized in Table 1.

Figure 2005048114
表1の光学的特性値に影響を及ぼす分散体の平均粒径、OD値の欄を見れば、実施例1、3、4、5、7、9、12、13、14及び17の顔料の方が、対応する比較例1〜9に比べ、光学的特性は格段に進歩しており、良好な画像再現性が得られることが分かる。これにより、イエロー、マゼンタ及びシアンの顔料が本来持っている良好な画像保持性に加えて、本発明の画像記録用顔料組成物が顔料に要求される特性のバランスを向上させていることが分かる。
Figure 2005048114
If the average particle diameter of the dispersion affecting the optical property values in Table 1 and the OD value column are observed, the pigments of Examples 1, 3, 4, 5, 7, 9, 12, 13, 14 and 17 However, compared with the corresponding Comparative Examples 1 to 9, the optical characteristics are remarkably advanced, and it can be seen that good image reproducibility can be obtained. As a result, in addition to the good image retention inherent in yellow, magenta and cyan pigments, it can be seen that the image recording pigment composition of the present invention improves the balance of properties required for the pigment. .

(カラートナー評価用試料の作成)
実施例2、4、5、6、8、10〜17及び比較例1〜9の顔料を用いて、カラートナー用着色剤としての基本的な適性の有無を試験するための試料を、次の手順で作成した。先ず、結着樹脂としての線状ポリエステル樹脂(ビスフェノールAのエチレンオキサイド付加物−テレフタル酸縮合生成物、軟化点:107℃、ガラス転移点:63℃)60部をニーダーに投入し、110〜112℃で加熱溶融した中に、試験顔料40重量部を少しずつ投入し、常法により顔料分40%のマスターバッチを作製した。
(Preparation of color toner evaluation sample)
Using the pigments of Examples 2, 4, 5, 6, 8, 10 to 17, and Comparative Examples 1 to 9, samples for testing the basic suitability as a color toner colorant are as follows. Created in the procedure. First, 60 parts of a linear polyester resin (ethylene oxide adduct of bisphenol A-terephthalic acid condensation product, softening point: 107 ° C., glass transition point: 63 ° C.) as a binder resin is charged into a kneader. While being heated and melted at a temperature of 40 ° C., 40 parts by weight of a test pigment was added little by little, and a master batch having a pigment content of 40% was prepared by a conventional method.

次に、このマスターバッチ10重量部をテトラヒドロフラン溶剤90重量部に溶解し、顔料分4%の黄色顔料分散液を調製した。この顔料分散液を、0.15mmバーコーターで透明フィルムに展色し、Y値測定及び目視による色調観察を行うことにより光学的特性を調べた。   Next, 10 parts by weight of the master batch was dissolved in 90 parts by weight of a tetrahydrofuran solvent to prepare a yellow pigment dispersion having a pigment content of 4%. The pigment dispersion was developed on a transparent film with a 0.15 mm bar coater, and the optical characteristics were examined by measuring the Y value and visually observing the color tone.

(カラートナー評価試験)
<光学的特性>
(a)Y値:分光測色計CM-3700d(MINOLTA社製を使用、C光源2°視野で測定)
(b)色調:試料をオーバーヘッドプロジェクター(OHP)にセットし、その透過色を目視により判定し、下記の基準で評価した。
(Color toner evaluation test)
<Optical characteristics>
(A) Y value: Spectral colorimeter CM-3700d (using MINOLTA, measured with C light source 2 ° field of view)
(B) Color tone: The sample was set on an overhead projector (OHP), and the transmitted color was visually determined and evaluated according to the following criteria.

◎:非常に鮮明な色を発現し,カラートナー用着色剤として使用可能
○:鮮明な色に発現し、カラートナー用着色剤として使用可能
△:若干、色に陰りはあるが、実用上問題なし
×:淡白色〜淡黒味の色に発現し、カラートナー用着色剤として使用不可。
A: Appears a very clear color and can be used as a colorant for color toners. A: Appears in a clear color and can be used as a colorant for color toners. None ×: Appears in a light white to light black color, and cannot be used as a color toner colorant.

以上の試験結果を以下の表2にまとめて示した。   The above test results are summarized in Table 2 below.

Figure 2005048114
表2の光学的特性の欄を見れば、実施例2、4、5、6、8、10〜17の顔料の方が、対応する比較例1〜9に比べ、光学的特性は格段に進歩しており、良好な画像再現性が得られることが分かる。これにより、イエロー、マゼンタ、シアンの顔料が本来持っている良好な画像保特性に加えて、本発明の画像記録用顔料組成物が顔料に要求される特性のバランスを向上させていることが分かる。
Figure 2005048114
Looking at the optical property column in Table 2, the optical properties of the pigments of Examples 2, 4, 5, 6, 8, and 10 to 17 are greatly improved compared to the corresponding Comparative Examples 1 to 9. It can be seen that good image reproducibility can be obtained. As a result, in addition to the good image retention properties inherent to yellow, magenta and cyan pigments, it can be seen that the image recording pigment composition of the present invention improves the balance of properties required for the pigments. .

本発明の画像記録用顔料組成物によれば、画像再現性及び画像保持性が良好なバランスの良い画像記録用イエロー、マゼンタ及びシアン着色剤が得られるので、電子写真、静電印刷法、インクジェット方式等のカラー画像記録の分野に於いて非常に有用である。
According to the image recording pigment composition of the present invention, a well-balanced image recording yellow, magenta and cyan colorant having good image reproducibility and image retention can be obtained. This is very useful in the field of color image recording such as a method.

Claims (8)

顔料と、一般式(1)で示される顔料誘導体とを含有していることを特徴とする画像記録用顔料組成物。
Figure 2005048114
(化1に於いて、Pは顔料の残基を表し、Xは、−CH2−NH−、−NH−、−CO−NR3−M−NR4−、−SO2−NR3−M−NR4−、−CH2−NR3−M−NR4−及び−CH2−NHCOCH2−NR3−M−NR4−から選択される基を表し、R3、R4は各々独立に水素原子又は置換若しくは無置換のアルキル基を表し、Mは、炭素数1〜20で構成された、置換基を有していてもよいアルキレン基、置換基を有していてもよいアルケニレン基、又は置換基を有していてもよいアリーレン基を表し、Yはエチレン基、フェニレン基及びナフチレン基から選択される基であって置換基を含むものであってもよいものを表し、R1、R2は各々独立の置換基若しくは無置換のアルキル基又はR1とR2により構成される複素環であって窒素、酸素若しくは硫黄を含み置換基を含むものであってもよいものを表し、ZはNH又は酸素原子を表し、mは1〜6の整数を表し、nは0.1〜2の数値を表す。)
A pigment composition for image recording, comprising a pigment and a pigment derivative represented by the general formula (1).
Figure 2005048114
(In Chemical Formula 1, P represents a pigment residue, and X represents —CH 2 —NH—, —NH—, —CO—NR 3 —M—NR 4 —, —SO 2 —NR 3 —M. —NR 4 —, —CH 2 —NR 3 —M—NR 4 — and —CH 2 —NHCOCH 2 —NR 3 —M—NR 4 — represents a group selected from R 3 and R 4 each independently Represents a hydrogen atom or a substituted or unsubstituted alkyl group, and M represents an alkylene group which may have a substituent, an alkenylene group which may have a substituent, which has 1 to 20 carbon atoms, Or an arylene group which may have a substituent, Y represents a group selected from an ethylene group, a phenylene group and a naphthylene group, which may contain a substituent, R 1 , R 2 are each constituted by an independent substituent or unsubstituted alkyl group, or R 1 and R 2 complex In which nitrogen, oxygen or sulfur may be included, Z represents NH or an oxygen atom, m represents an integer of 1 to 6, and n represents 0.1 to 2 Represents the numerical value of
顔料と、一般式(2)で示される顔料誘導体とを含有していることを特徴とする画像記録用顔料組成物。
Figure 2005048114
(化2に於いて、Pは顔料の残基を表し、Xは、−CH2−NH−、−NH−、−CO−NR3−M−NR4−、−SO2−NR3−M−NR4−、−CH2−NR3−M−NR4−及び−CH2−NHCOCH2−NR3−M−NR4−から選択される基を表し、R3、R4は各々独立に水素原子又は置換若しくは無置換のアルキル基を表し、Mは、炭素数1〜20で構成された、置換基を有していてもよいアルキレン基、置換基を有していてもよいアルケニレン基、又は置換基を有していてもよいアリーレン基を表し、Bはフェニレン基であって置換基を含むものであってもよいものを表し、AはOH基又はZ−(CH2m−N−R12を表し、ZはNH又は酸素原子を表し、mは1〜6の整数を表し、R1、R2は各々独立の置換基若しくは無置換のアルキル基又はR1とR2により構成される複素環であって窒素、酸素若しくは硫黄を含み置換基を含むものであってもよいものを表し、nは0.1〜2の数値を表す。)
A pigment composition for image recording, comprising a pigment and a pigment derivative represented by the general formula (2).
Figure 2005048114
(In Chemical Formula 2, P represents a pigment residue, and X represents —CH 2 —NH—, —NH—, —CO—NR 3 —M—NR 4 —, —SO 2 —NR 3 —M. —NR 4 —, —CH 2 —NR 3 —M—NR 4 — and —CH 2 —NHCOCH 2 —NR 3 —M—NR 4 — represents a group selected from R 3 and R 4 each independently Represents a hydrogen atom or a substituted or unsubstituted alkyl group, and M represents an alkylene group which may have a substituent, an alkenylene group which may have a substituent, which has 1 to 20 carbon atoms, Or an arylene group which may have a substituent, B represents a phenylene group which may contain a substituent, and A represents an OH group or Z— (CH 2 ) m —N. -R 1 represents R 2, Z represents NH or an oxygen atom, m represents an integer of 1~6, R 1, R 2 each independently represents substituent Properly represents what may be one comprising an unsubstituted alkyl group or a heterocyclic formed by R 1 and R 2 containing nitrogen, oxygen or substituents include sulfur, n 0.1-2 Represents the numerical value of
前記顔料100重量部に対して、一般式(1)で示される前記顔料誘導体を0.5〜20重量部の範囲で含有していることを特徴とする請求項1記載の画像記録用顔料組成物。   2. The pigment composition for image recording according to claim 1, wherein the pigment derivative represented by the general formula (1) is contained in an amount of 0.5 to 20 parts by weight with respect to 100 parts by weight of the pigment. object. 前記顔料100重量部に対して、一般式(2)で示される前記顔料誘導体を0.5〜20重量部の範囲で含有していることを特徴とする請求項2記載の画像記録用顔料組成物。   3. The pigment composition for image recording according to claim 2, wherein the pigment derivative represented by the general formula (2) is contained in the range of 0.5 to 20 parts by weight with respect to 100 parts by weight of the pigment. object. 前記顔料が、イエロー系顔料、キナクリドン系顔料及びフタロシアニン系顔料からなる群から選択されるものであり、一般式(1)で示される前記顔料誘導体に於けるPが、前記イエロー系顔料の残基、前記キナクリドン系顔料の残基及び前記フタロシアニン系顔料の残基からなる群から選択されるものである請求項1又は3に記載の画像記録用顔料組成物。   The pigment is selected from the group consisting of a yellow pigment, a quinacridone pigment, and a phthalocyanine pigment, and P in the pigment derivative represented by the general formula (1) is a residue of the yellow pigment. The image recording pigment composition according to claim 1, wherein the pigment composition is selected from the group consisting of a residue of the quinacridone pigment and a residue of the phthalocyanine pigment. 前記画像記録用顔料組成物に於ける顔料の粒子径が20〜200nmの範囲である請求項1、3又は5に記載の画像記録用顔料組成物。   The pigment composition for image recording according to claim 1, 3 or 5, wherein the particle diameter of the pigment in the pigment composition for image recording is in the range of 20 to 200 nm. 前記顔料が、イエロー系顔料、キナクリドン系顔料及びフタロシアニン系顔料からなる群から選択されるものであり、一般式(2)で示される前記顔料誘導体に於けるPが、前記イエロー系顔料の残基、前記キナクリドン系顔料の残基及び前記フタロシアニン系顔料の残基からなる群から選択されるものである請求項2又は4に記載の画像記録用顔料組成物。   The pigment is selected from the group consisting of a yellow pigment, a quinacridone pigment, and a phthalocyanine pigment, and P in the pigment derivative represented by the general formula (2) is a residue of the yellow pigment. The image recording pigment composition according to claim 2 or 4, wherein the pigment composition is selected from the group consisting of residues of the quinacridone pigment and residues of the phthalocyanine pigment. 前記画像記録用顔料組成物に於ける顔料の粒子径が20〜200nmの範囲である請求項2,4又は7に記載の画像記録用顔料組成物。
The pigment composition for image recording according to claim 2, 4 or 7, wherein the particle diameter of the pigment in the pigment composition for image recording is in the range of 20 to 200 nm.
JP2003283377A 2003-07-31 2003-07-31 Pigment composition for image recording Pending JP2005048114A (en)

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