JP2000351912A - Pigment composition and aqueous pigment dispersion using the same - Google Patents
Pigment composition and aqueous pigment dispersion using the sameInfo
- Publication number
- JP2000351912A JP2000351912A JP2000068058A JP2000068058A JP2000351912A JP 2000351912 A JP2000351912 A JP 2000351912A JP 2000068058 A JP2000068058 A JP 2000068058A JP 2000068058 A JP2000068058 A JP 2000068058A JP 2000351912 A JP2000351912 A JP 2000351912A
- Authority
- JP
- Japan
- Prior art keywords
- pigment
- water
- dry
- pigment composition
- soluble resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水系媒体に容易に
分散する顔料組成物に関し、特に大量の水や溶剤を使用
せず単一工程で製造することができる顔料組成物、およ
びそれを配合した水系顔料分散体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pigment composition which can be easily dispersed in an aqueous medium, and more particularly to a pigment composition which can be produced in a single step without using a large amount of water or a solvent, and a compounding composition thereof. Water-based pigment dispersion.
【０００２】[0002]
【従来の技術】従来、顔料の水系分散体を製造する方法
としては、水系に適するように処理された顔料を、分散
ワニスと混合後、サンドミル、ビーズミル等の分散機を
使用して、膨大なエネルギーと時間を費やして分散させ
る方法が採用されていた。使用される顔料についても多
くのエネルギーと時間を使い製品としての顔料に仕上げ
られていた。例えば、粗製顔料の湿式粉砕による顔料化
工程では、粗製顔料を顔料化助剤の存在下でニーダー等
の粉砕機により粉砕するため、粉砕のための混練エネル
ギーと時間、さらに顔料化助剤を顔料から分離精製する
ためのエネルギーと時間が必要であった。2. Description of the Related Art Conventionally, as a method for producing an aqueous dispersion of a pigment, a pigment which has been treated so as to be suitable for an aqueous system is mixed with a dispersion varnish, and then a huge amount of the pigment is dispersed using a disperser such as a sand mill or a bead mill. The method of dispersing by spending energy and time was adopted. Regarding the pigment used, the pigment was finished as a product using a lot of energy and time. For example, in the pigmentation step of wet pigmentation of a crude pigment, the crude pigment is pulverized by a pulverizer such as a kneader in the presence of a pigmentation aid. Energy and time were required to separate and purify it from.
【０００３】これらの問題を解決すべく、特開昭55-754
53号公報には、粗製フタロシアニンを界面活性剤の存在
下で乾式粉砕する方法が、特開平9-217019公報には、粗
製顔料を乾式粉砕後、樹脂および有機溶剤と機械的に分
散する方法が、特開平9-188845号公報には、粗製銅フタ
ロシアニンを樹脂および有機液体と乾式粉砕する方法等
が提案されている。In order to solve these problems, Japanese Patent Application Laid-Open No. 55-754
No. 53 discloses a method of dry-grinding a crude phthalocyanine in the presence of a surfactant, and JP-A-9-217019 discloses a method of dry-grinding a crude pigment and then mechanically dispersing it with a resin and an organic solvent. Japanese Patent Application Laid-Open No. Hei 9-88845 proposes a method of dry-grinding crude copper phthalocyanine with a resin and an organic liquid.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記方
法をもってしても水系媒体中に低い機械的エネルギーで
分散する顔料組成物を経済的に製造するのは不十分であ
った。したがって、本発明は、水系媒体に容易に分散す
る顔料組成物を大量の水や溶剤を使用せずかつ単一工程
で製造する方法を提供する。However, even with the above method, it has been insufficient to economically produce a pigment composition which can be dispersed in an aqueous medium with low mechanical energy. Therefore, the present invention provides a method for producing a pigment composition which can be easily dispersed in an aqueous medium without using a large amount of water or a solvent in a single step.
【０００５】[0005]
【課題を解決するための手段】すなわち本発明は、乾式
粉砕された顔料、アセチレン基を含むノニオン系界面活
性剤および水溶性樹脂からなる顔料組成物に関する。That is, the present invention relates to a pigment composition comprising a dry-ground pigment, a nonionic surfactant containing an acetylene group, and a water-soluble resin.
【０００６】更に本発明は、上記顔料組成物を水中に分
散してなる水系顔料分散体に関する。更に本発明は、粗
大粒子を含む顔料をアセチレン基を含むノニオン系界面
活性剤および水溶性樹脂の存在下に乾式粉砕する顔料組
成物の製造方法に関する。The present invention further relates to an aqueous pigment dispersion obtained by dispersing the above pigment composition in water. Furthermore, the present invention relates to a method for producing a pigment composition in which a pigment containing coarse particles is dry-pulverized in the presence of a nonionic surfactant containing an acetylene group and a water-soluble resin.
【０００７】更に本発明は、粗大粒子を含む顔料をアセ
チレン基を含むノニオン系界面活性剤の存在下に乾式粉
砕した後に、水溶性樹脂を添加して更に乾式粉砕する顔
料組成物の製造方法に関する。Further, the present invention relates to a method for producing a pigment composition in which a pigment containing coarse particles is dry-pulverized in the presence of a nonionic surfactant containing an acetylene group, and then a water-soluble resin is added and further dry-pulverized. .
【０００８】[0008]
【発明の実施の形態】本発明における顔料としては、フ
タロシアニン系顔料、キナクリドン系顔料、ジオキサジ
ン系顔料などの縮合多環系顔料、モノアゾ顔料、ジスア
ゾ顔料などのアゾ系が挙げられるが、これらのものに限
定されない。乾式粉砕に供する顔料は、最終的な製品形
態としての顔料として好ましくない粗大粒子を含む顔料
であって、好ましくは、縮合多環系の粗製顔料である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The pigments used in the present invention include condensed polycyclic pigments such as phthalocyanine pigments, quinacridone pigments and dioxazine pigments, and azo pigments such as monoazo pigments and disazo pigments. It is not limited to. The pigment to be subjected to the dry pulverization is a pigment containing coarse particles which are not preferable as a pigment in a final product form, and is preferably a condensed polycyclic crude pigment.
【０００９】本発明における水溶性樹脂は、水系顔料分
散体の樹脂成分またはバインダー成分として通常使用さ
れる樹脂、又は、本発明の顔料組成物を用いたインキ濃
縮物中に添加される他の成分と相溶性のある樹脂であり
得る。好ましく使用できる水溶性樹脂の例は、アクリル
酸エステル重合体、アクリル-スチレン共重合体、アク
リル-α-メチルスチレン共重合体等のアクリル系樹脂で
ある。これらのアクリル系樹脂は、アルカリ金属イオ
ン、アミン、アンモニア等のアルカリ成分の存在下に水
中に溶解することができる。乾式粉砕時に添加する水溶
性樹脂はペレット状の形態であると取り扱いが容易であ
るため好ましい。The water-soluble resin in the present invention is a resin commonly used as a resin component or a binder component of an aqueous pigment dispersion, or another component added to an ink concentrate using the pigment composition of the present invention. The resin may be compatible with the resin. Examples of the water-soluble resin that can be preferably used are acrylic resins such as an acrylate polymer, an acryl-styrene copolymer, and an acryl-α-methylstyrene copolymer. These acrylic resins can be dissolved in water in the presence of alkali components such as alkali metal ions, amines, and ammonia. The water-soluble resin added at the time of dry pulverization is preferably in the form of pellets because it is easy to handle.
【００１０】本発明において乾式粉砕時に添加する水溶
性樹脂の量は、顔料に対して2〜50重量％、好ましく
は、10〜25重量％であり、上記数値より多いと乾式粉砕
により得られた顔料組成物を用いた濃縮物中の樹脂比率
が高くなり、水系分散体の用途が限定されたり、使用で
きなくなって好ましくなく、上記数値より少ないと乾式
粉砕により得られた顔料組成物が水中に解膠し難くなる
ため好ましくない。In the present invention, the amount of the water-soluble resin to be added at the time of dry grinding is 2 to 50% by weight, preferably 10 to 25% by weight, based on the weight of the pigment. The resin ratio in the concentrate using the pigment composition is increased, the use of the aqueous dispersion is limited, or it is not preferable because it cannot be used, and the pigment composition obtained by dry pulverization when the amount is less than the above value is dissolved in water. It is not preferable because peptization becomes difficult.
【００１１】本発明のアセチレン基を含むノニオン系界
面活性剤は、分子中にアセチレン基と水酸基を有する脂
肪族系化合物で、具体的には、2,4,7,9-テトラメチル-5
-デシン-4,7-ジオールもしくはこれのエチレンオキシド
付加物が挙げられる。アセチレン基を含むノニオン系界
面活性剤とエーテル、グリコールとの混合物が使用上好
ましい。The nonionic surfactant containing an acetylene group according to the present invention is an aliphatic compound having an acetylene group and a hydroxyl group in the molecule, and specifically, 2,4,7,9-tetramethyl-5.
-Desine-4,7-diol or an ethylene oxide adduct thereof. A mixture of a nonionic surfactant containing an acetylene group, ether and glycol is preferable in use.
【００１２】本発明において乾式粉砕時に添加するアセ
チレン基を含むノニオン系界面活性剤の量は、顔料に対
して1〜20重量％、好ましくは、３〜10重量％であり、
上記より界面活性剤が多くなると乾式粉砕装置内部での
粉砕物の固着が生じる危険性が高くなり、又、水系顔料
分散体の用途が限定される。また、界面活性剤の量が少
なくなると、顔料組成物がビヒクル中で解膠せず、特に
フタロシアニン顔料を使用した場合、顔料が発色しなく
なる。アセチレン基を含むノニオン系界面活性剤ととも
に他の界面活性剤を使用してもよい。In the present invention, the amount of the nonionic surfactant containing an acetylene group added at the time of dry pulverization is 1 to 20% by weight, preferably 3 to 10% by weight, based on the pigment.
When the amount of the surfactant is larger than the above, there is a high risk that the pulverized matter is fixed inside the dry pulverizer, and the use of the aqueous pigment dispersion is limited. In addition, when the amount of the surfactant is small, the pigment composition does not peptize in the vehicle, and the pigment does not develop color, particularly when a phthalocyanine pigment is used. Other surfactants may be used together with the nonionic surfactant containing an acetylene group.
【００１３】本発明の乾式粉砕は、ビーズ等の粉砕メデ
ィアを内蔵した粉砕機を使用し、水や溶剤により顔料を
凝集させることなく、粉体の状態で粉砕物を粉砕するも
のである。粉砕装置としては、乾式アトライター、ボー
ルミル、振動ミルなどを挙げることができるが、生産効
率の点からアトライターが好ましい。乾式粉砕は、粉砕
すべき顔料とアセチレン基を含むノニオン系界面活性剤
と水溶性樹脂との三成分を同時に粉砕してもよいが、好
ましくは、最初に粉砕すべき顔料にアセチレン基を含む
ノニオン系界面活性剤を添加して粉砕し、次に水溶性樹
脂を添加して更に乾式粉砕する。In the dry pulverization of the present invention, a pulverized material is pulverized in a powdery state without using a pulverizer having a pulverizing medium such as beads or the like and agglomerating the pigment with water or a solvent. Examples of the pulverizer include a dry attritor, a ball mill, a vibration mill and the like, but an attritor is preferable in terms of production efficiency. Dry pulverization may simultaneously pulverize the three components of a pigment to be pulverized and a nonionic surfactant containing an acetylene group and a water-soluble resin. A system surfactant is added and pulverized, and then a water-soluble resin is added and further pulverized by a dry method.
【００１４】乾式粉砕の条件は、使用する装置により設
定する必要があるが、粉砕温度は30〜150℃で行うこと
が好ましい。特に粉砕温度は共存する水溶性樹脂の軟化
点より高くなると乾式装置内部での粉砕物の固着が生じ
る危険性が高くなる。そのため、水溶性樹脂の軟化点よ
りなるべく低く設定する必要がある。粉砕時間は10分〜
6時間が好ましく、粉砕時間が短いと顔料中に粉砕が不
十分な粒子が含まれるため好ましくなく、又、粉砕時間
が長いと生産効率が悪くなるため好ましくない。The conditions for dry pulverization must be set according to the equipment used, but the pulverization temperature is preferably from 30 to 150 ° C. In particular, when the pulverization temperature is higher than the softening point of the coexisting water-soluble resin, there is a high risk that the pulverized material will adhere to the inside of the dry apparatus. Therefore, it is necessary to set the softening point of the water-soluble resin as low as possible. Grinding time is 10 minutes ~
Six hours are preferable, and a short pulverization time is not preferable because particles that are not sufficiently pulverized are contained in the pigment, and a long pulverization time is not preferable because production efficiency is deteriorated.
【００１５】本発明の顔料組成物は、微細に粉砕された
顔料粒子の表面を水溶性樹脂あるいは界面活性剤と水溶
性樹脂とが被覆した粉体状態であり、アルカリ存在下で
水中に容易に解膠し分散する。本発明の顔料組成物は、
アルカリ存在下で水系顔料分散体用ビヒクルとを撹拌混
合等の簡単な操作により水性顔料分散体とすることがで
きる。The pigment composition of the present invention is in a powder state in which the surface of finely pulverized pigment particles is coated with a water-soluble resin or a surfactant and a water-soluble resin. Peptized and dispersed. The pigment composition of the present invention,
An aqueous pigment dispersion can be obtained by a simple operation such as stirring and mixing with an aqueous pigment dispersion vehicle in the presence of an alkali.
【００１６】本発明で得られる顔料組成物に含まれる顔
料分散粒子は、ソルベントソルトミリング法で得られた
顔料粒子とほぼ同じ粒子径とすることができる。本発明
の水系顔料分散体は、例えば、水性塗料、捺染剤、水性
インキ、インキジェット用インキ、カラーフィルター用
の分散液等として使用することができる。The pigment dispersed particles contained in the pigment composition obtained by the present invention can have substantially the same particle diameter as the pigment particles obtained by the solvent salt milling method. The aqueous pigment dispersion of the present invention can be used, for example, as an aqueous paint, a printing agent, an aqueous ink, an ink for ink jet, a dispersion for a color filter, and the like.
【００１７】[0017]
【実施例】以下、実施例、比較例により本発明を具体的
に説明する。なお、実施例中で標準顔料として使用して
いるのは、粗製顔料をソルベントソルトミリングにより
顔料化したものであり、結晶型の測定にはＸ線回折装置
を使用した。また粒子サイズと粒子形態は透過型電子顕
微鏡で観察した。The present invention will be specifically described below with reference to examples and comparative examples. The pigment used as a standard pigment in the examples was obtained by converting a crude pigment into a pigment by solvent salt milling, and an X-ray diffractometer was used to measure the crystal form. The particle size and particle morphology were observed with a transmission electron microscope.
【００１８】[0018]
【実施例１】乾式アトライターに粗製銅フタロシアニン
83重量部とアセチレン基を含むノニオン系界面活性剤
（日信化学工業株式会社製「オルフィンSTG」）5重量部
を加え90℃で30分間粉砕した。次に、アクリル系樹脂
（ジョンソンポリマー社製「ジョンクリルJ-683」）12
重量部を加え90℃で20分間粉砕した。得られた顔料組成
物は、粉砕された顔料粒子の表面がアクリル系樹脂で被
覆された粉体であり、α型結晶の含有率は2%以下であっ
た。Example 1 Crude copper phthalocyanine was added to a dry attritor.
83 parts by weight and 5 parts by weight of a nonionic surfactant containing an acetylene group (“Olfin STG” manufactured by Nissin Chemical Industry Co., Ltd.) were added and pulverized at 90 ° C. for 30 minutes. Next, an acrylic resin (“Johncryl J-683” manufactured by Johnson Polymer Co., Ltd.)
The weight part was added and pulverized at 90 ° C. for 20 minutes. The obtained pigment composition was a powder in which the surface of pulverized pigment particles was coated with an acrylic resin, and the content of α-type crystals was 2% or less.
【００１９】次に、得られた顔料組成物18重量部を樹脂
を溶解するための水酸化ナトリウムを含む水溶液20重量
部に加え室温で穏やかに撹拌することにより濃縮分散体
を得た。次に、得られた濃縮分散体に水性用スチレンア
クリルエマルジョン62重量部を加え最終インキに調整し
た後、同一顔料分を含む標準インキと比較したところ、
本実施例のインキは着色力、透明性、鮮明性などにおい
て標準インキより優れており着色力は140％程度の品位
を有していた。この時の平均分散粒径は80〜120nmであ
った。Next, 18 parts by weight of the obtained pigment composition was added to 20 parts by weight of an aqueous solution containing sodium hydroxide for dissolving the resin, and the mixture was gently stirred at room temperature to obtain a concentrated dispersion. Next, after adding 62 parts by weight of an aqueous styrene acrylic emulsion to the obtained concentrated dispersion and adjusting it to the final ink, when compared with a standard ink containing the same pigment content,
The ink of this example was superior to the standard ink in coloring power, transparency, sharpness, and the like, and had a coloring power of about 140%. The average dispersed particle size at this time was 80 to 120 nm.
【００２０】[0020]
【実施例２】乾式アトライターに粗製銅フタロシアニン
83重量部とアセチレン基を含むノニオン系界面活性剤
（日信化学工業株式会社製「サーフィノールTG」）5重
量部を加え90℃で30分間粉砕した。次に、アクリル系樹
脂（ジョンソンポリマー社製「ジョンクリルJ-683」）1
2重量部を加え90℃で20分間粉砕した。得られた顔料組
成物は、粉砕された顔料粒子の表面がアクリル系樹脂で
被覆された粉体であり、α型結晶の含有率は2%以下であ
った。Example 2 Crude copper phthalocyanine was added to a dry attritor.
83 parts by weight and 5 parts by weight of a nonionic surfactant containing an acetylene group ("Surfinol TG" manufactured by Nissin Chemical Industry Co., Ltd.) were added and pulverized at 90 ° C for 30 minutes. Next, an acrylic resin (“Johncryl J-683” manufactured by Johnson Polymer)
2 parts by weight were added and crushed at 90 ° C. for 20 minutes. The obtained pigment composition was a powder in which the surface of pulverized pigment particles was coated with an acrylic resin, and the content of α-type crystals was 2% or less.
【００２１】次に、得られた顔料組成物18重量部を樹脂
を溶解するための水酸化ナトリウムを含む水溶液20重量
部に加え室温で穏やかに撹拌することにより濃縮分散体
を得た。次に、得られた濃縮分散体に水性用スチレンア
クリルエマルジョン62重量部を加え最終インキに調整し
た後、同一顔料分を含む標準インキと比較したところ、
本実施例のインキは着色力、透明性、鮮明性などにおい
て標準インキより優れており着色力は130％程度の品位
を有していた。この時の平均分散粒径は80〜120nmであ
った。Next, 18 parts by weight of the obtained pigment composition was added to 20 parts by weight of an aqueous solution containing sodium hydroxide for dissolving the resin, and the mixture was gently stirred at room temperature to obtain a concentrated dispersion. Next, after adding 62 parts by weight of an aqueous styrene acrylic emulsion to the obtained concentrated dispersion and adjusting it to the final ink, when compared with a standard ink containing the same pigment content,
The ink of this example was superior to the standard ink in coloring power, transparency, sharpness, and the like, and had a coloring power of about 130%. The average dispersed particle size at this time was 80 to 120 nm.
【００２２】[0022]
【実施例３】乾式アトライターに粗製銅フタロシアニン
83重量部とアセチレン基を含むノニオン系界面活性剤
（日信化学工業株式会社製「サーフィノール504」）5重
量部を加え90℃で30分間粉砕した。次に、アクリル系樹
脂（ジョンソンポリマー社製「ジョンクリルJ-683」）1
2重量部を加え90℃で20分間粉砕した。得られた顔料組
成物は、粉砕された顔料粒子の表面がアクリル系樹脂で
被覆された粉体であり、α型結晶の含有率は2%以下であ
った。Example 3 Crude copper phthalocyanine was added to a dry attritor.
83 parts by weight and 5 parts by weight of a nonionic surfactant containing acetylene group (“Surfinol 504” manufactured by Nissin Chemical Industry Co., Ltd.) were added, and the mixture was ground at 90 ° C. for 30 minutes. Next, an acrylic resin (“Johncryl J-683” manufactured by Johnson Polymer)
2 parts by weight were added and crushed at 90 ° C. for 20 minutes. The obtained pigment composition was a powder in which the surface of pulverized pigment particles was coated with an acrylic resin, and the content of α-type crystals was 2% or less.
【００２３】次に、得られた顔料組成物 18重量部を樹
脂を溶解するための水酸化ナトリウムを含む水溶液20重
量部に加え室温で穏やかに撹拌することにより濃縮分散
体を得た。次に、得られた濃縮分散体に水性用スチレン
アクリルエマルジョン62重量部を加え最終インキに調整
した後、同一顔料分を含む標準インキと比較したとこ
ろ、本実施例のインキは着色力、透明性、鮮明性などに
おいて標準インキより優れており着色力は110％程度の
品位を有していた。この時の平均分散粒径は80〜120nm
であった。Next, 18 parts by weight of the obtained pigment composition was added to 20 parts by weight of an aqueous solution containing sodium hydroxide for dissolving the resin, and the mixture was gently stirred at room temperature to obtain a concentrated dispersion. Next, 62 parts by weight of an aqueous styrene acrylic emulsion was added to the obtained concentrated dispersion to prepare a final ink, and compared with a standard ink containing the same pigment, the ink of this example showed tinctorial strength and transparency. It was superior to the standard ink in terms of sharpness, etc., and had a coloring power of about 110%. The average dispersed particle size at this time is 80 to 120 nm
Met.
【００２４】[0024]
【比較例１】乾式アトライターに粗製銅フタロシアニン
83重量部とノニオン系界面活性剤「日本乳化剤社製「Ne
wcol723」）5重量部を加え90℃で30分間粉砕した。次
に、アクリル系樹脂（ジョンソンポリマー社製「ジョン
クリルJ-683」）12重量部を加え90℃で20分間粉砕し
た。得られた顔料組成物は、粉砕された顔料粒子の表面
がアクリル系樹脂で被覆された粉体であり、α型結晶の
含有率は2%以下であった。次に、得られた顔料組成物18
重量部を樹脂を溶解するための水酸化ナトリウムを含む
水溶液20重量部に加え室温で穏やかに撹拌することによ
り濃縮分散体を得た。次に、得られた濃縮分散体に水性
用スチレンアクリルエマルジョン62重量部を加え最終イ
ンキに調整したが、ほとんど発色していなかった。Comparative Example 1 Crude copper phthalocyanine was added to a dry attritor.
83 parts by weight and nonionic surfactant "Nippon Emulsifier Co."
wcol723 ”) and pulverized at 90 ° C for 30 minutes. Next, 12 parts by weight of an acrylic resin ("Johncryl J-683" manufactured by Johnson Polymer Co., Ltd.) was added and pulverized at 90 ° C for 20 minutes. The obtained pigment composition was a powder in which the surface of pulverized pigment particles was coated with an acrylic resin, and the content of α-type crystals was 2% or less. Next, the obtained pigment composition 18
A concentrated dispersion was obtained by adding 20 parts by weight of an aqueous solution containing sodium hydroxide for dissolving the resin and gently stirring at room temperature. Next, 62 parts by weight of an aqueous styrene acrylic emulsion was added to the resulting concentrated dispersion to prepare a final ink, but almost no color was formed.
【００２５】[0025]
【比較例２】乾式アトライターに粗製銅フタロシアニン
83重量部とアセチレン基を含むノニオン系界面活性剤
（日信化学工業株式会社製「オルフィンSTG」）5重量部
を加え90℃で30分間粉砕した。得られた顔料組成物のα
型結晶の含有率は2%以下であった。次に、得られた顔料
組成物18重量部を樹脂を溶解するための水酸化ナトリウ
ムを含む水溶液20重量部に加え室温で穏やかに撹拌する
ことにより濃縮分散体を得た。次に、得られた濃縮分散
体に水性用スチレンアクリルエマルジョン62重量部を加
え最終インキに調整した後、同一顔料分を含む標準イン
キと比較したところ、不鮮明であり着色力は70%程度で
あった。Comparative Example 2 Crude copper phthalocyanine was added to a dry attritor.
83 parts by weight and 5 parts by weight of a nonionic surfactant containing an acetylene group (“Olfin STG” manufactured by Nissin Chemical Industry Co., Ltd.) were added and pulverized at 90 ° C. for 30 minutes. Α of the obtained pigment composition
The content of the type crystals was 2% or less. Next, 18 parts by weight of the obtained pigment composition was added to 20 parts by weight of an aqueous solution containing sodium hydroxide for dissolving the resin, and the mixture was gently stirred at room temperature to obtain a concentrated dispersion. Next, 62 parts by weight of an aqueous styrene acrylic emulsion was added to the obtained concentrated dispersion to prepare a final ink, and compared with a standard ink containing the same pigment, the result was unclear and the coloring power was about 70%. Was.
【００２６】[0026]
【実施例４】乾式アトライターに粗製銅フタロシアニン
83重量部とアセチレン基を含むノニオン系界面活性剤
（日信化学工業株式会社製「オルフィンSTG」）3.8重量
部を加え90℃で30分間粉砕した。次に、アクリル系樹脂
（ジョンソンポリマー社製「ジョンクリルJ-683」）12
重量部を加え90℃で20分間粉砕した。次に、得られた顔
料組成物は、粉砕された顔料粒子の表面がアクリル系樹
脂で被覆された粉体であり、α型結晶の含有率は2%以下
であった。次に、得られた顔料組成物18重量部を樹脂を
溶解するための水酸化ナトリウムを含む水溶液20重量部
に加え室温で穏やかに撹拌することにより濃縮分散体を
得た。得られた濃縮分散体に水性用スチレンアクリルエ
マルジョン62重量部を加え最終インキに調整した後、同
一顔料分を含む標準インキと比較したところ、本実施例
のインキは着色力、透明性、鮮明性などにおいて標準イ
ンキより優れており着色力は130％程度の品位を有して
いた。この時の平均分散粒径は80〜120nmであった。Example 4 Crude copper phthalocyanine was added to a dry attritor.
83 parts by weight and 3.8 parts by weight of a nonionic surfactant containing acetylene group ("Olfin STG" manufactured by Nissin Chemical Industry Co., Ltd.) were added, and pulverized at 90 ° C for 30 minutes. Next, acrylic resin (“Johncryl J-683” manufactured by Johnson Polymer)
The weight part was added and pulverized at 90 ° C. for 20 minutes. Next, the obtained pigment composition was a powder in which the surface of the pulverized pigment particles was coated with an acrylic resin, and the content of α-type crystals was 2% or less. Next, 18 parts by weight of the obtained pigment composition was added to 20 parts by weight of an aqueous solution containing sodium hydroxide for dissolving the resin, and the mixture was gently stirred at room temperature to obtain a concentrated dispersion. After adding 62 parts by weight of a water-based styrene acrylic emulsion to the obtained concentrated dispersion and adjusting it to a final ink, and comparing with a standard ink containing the same pigment, the ink of this example showed tinctorial strength, transparency and sharpness. In comparison with the standard ink, the coloring power was about 130%. The average dispersed particle size at this time was 80 to 120 nm.
【００２７】[0027]
【実施例５】乾式アトライターに粗製銅フタロシアニン
83重量部とアセチレン基を含むノニオン系界面活性剤
（日信化学工業株式会社製「オルフィンSTG」）6.5重量
部を加え90℃で30分間粉砕した。次に、アクリル系樹脂
（ジョンソンポリマー社製「ジョンクリルJ-683」）12
重量部を加え90℃で20分間粉砕した。次に、得られた顔
料組成物は、粉砕された顔料粒子の表面がアクリル系樹
脂で被覆された粉体であり、α型結晶の含有率は2%以下
であった。次に、得られた顔料組成物18重量部を樹脂を
溶解するための水酸化ナトリウムを含む水溶液20重量部
に加え室温で穏やかに撹拌することにより濃縮分散体を
得た。得られた濃縮分散体に水性用スチレンアクリルエ
マルジョン62重量部を加え最終インキに調整した後、同
一顔料分を含む標準インキと比較したところ、本実施例
のインキは着色力、透明性、鮮明性などにおいて標準イ
ンキより優れており着色力は140％程度の品位を有して
いた。この時の平均分散粒径は80〜120nmであった。Example 5 Crude copper phthalocyanine was added to a dry attritor.
83 parts by weight and 6.5 parts by weight of a nonionic surfactant containing an acetylene group ("Olfin STG" manufactured by Nissin Chemical Industry Co., Ltd.) were added and pulverized at 90 ° C for 30 minutes. Next, an acrylic resin (“Johncryl J-683” manufactured by Johnson Polymer Co., Ltd.)
The weight part was added and pulverized at 90 ° C. for 20 minutes. Next, the obtained pigment composition was a powder in which the surface of pulverized pigment particles was coated with an acrylic resin, and the content of α-type crystals was 2% or less. Next, 18 parts by weight of the obtained pigment composition was added to 20 parts by weight of an aqueous solution containing sodium hydroxide for dissolving the resin, and the mixture was gently stirred at room temperature to obtain a concentrated dispersion. After adding 62 parts by weight of an aqueous styrene acrylic emulsion to the obtained concentrated dispersion to prepare a final ink, and comparing with a standard ink containing the same pigment, the ink of this example showed tinctorial strength, transparency, and sharpness. It was superior to the standard ink in terms of coloration and had a tinting strength of about 140%. The average dispersed particle size at this time was 80 to 120 nm.
【発明の効果】本発明によれば、一般的な顔料製造方法
として採用いるソルベントソルトミリング法から得られ
る顔料と比較して同等もしくはそれ以上の品質を有する
顔料をを含む水性分散体を、より低コストで提供するこ
とが可能である。また、本発明の顔料組成物は、水中に
簡単な操作で顔料を分散することができる。According to the present invention, an aqueous dispersion containing a pigment having a quality equal to or higher than that of a pigment obtained by a solvent salt milling method employed as a general pigment production method can be obtained. It can be provided at low cost. The pigment composition of the present invention can disperse a pigment in water by a simple operation.
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０９Ｂ 67/40 Ｃ０９Ｂ 67/40 Ｃ０９Ｄ 17/00 Ｃ０９Ｄ 17/00 Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (reference) C09B 67/40 C09B 67/40 C09D 17/00 C09D 17/00
Claims (10)
むノニオン系界面活性剤および水溶性樹脂からなる顔料
組成物。1. A pigment composition comprising a dry-ground pigment, a nonionic surfactant containing an acetylene group, and a water-soluble resin.
請求項１記載の顔料組成物。2. The pigment composition according to claim 1, wherein the water-soluble resin is an alkali-soluble resin.
たは２記載の顔料組成物。3. The pigment composition according to claim 1, wherein the pigment is a condensed polycyclic pigment.
剤が分子中にアセチレン基と水酸基を有する脂肪族系化
合物である請求項１ないし３いずれか記載の顔料組成
物。4. The pigment composition according to claim 1, wherein the nonionic surfactant containing an acetylene group is an aliphatic compound having an acetylene group and a hydroxyl group in a molecule.
樹脂で被覆されている請求項１ないし４いずれか記載の
顔料組成物。5. The pigment composition according to claim 1, wherein the surface of the dry-ground pigment particles is coated with a water-soluble resin.
重量％およびアセチレン基を含むノニオン系界面活性剤
の量が顔料に対して１〜２０重量％である請求項１ない
し５いずれか記載の顔料組成物。6. The amount of the water-soluble resin is 2 to 50 with respect to the pigment.
The pigment composition according to any one of claims 1 to 5, wherein the amount of the nonionic surfactant containing an acetylene group is 1 to 20% by weight based on the weight of the pigment.
成物を水中に分散してなる水系顔料分散体。7. An aqueous pigment dispersion obtained by dispersing the pigment composition according to claim 1 in water.
むノニオン系界面活性剤および水溶性樹脂の存在下に乾
式粉砕する顔料組成物の製造方法。8. A method for producing a pigment composition, wherein a pigment containing coarse particles is dry-pulverized in the presence of a nonionic surfactant containing an acetylene group and a water-soluble resin.
むノニオン系界面活性剤の存在下に乾式粉砕した後に、
水溶性樹脂を添加して更に乾式粉砕する顔料組成物の製
造方法。9. After dry-grinding a pigment containing coarse particles in the presence of a nonionic surfactant containing an acetylene group,
A method for producing a pigment composition, to which a water-soluble resin is added, followed by dry pulverization.
請求項８または９記載の顔料組成物の製造方法。10. The method for producing a pigment composition according to claim 8, wherein the pigment containing coarse particles is a crude pigment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000068058A JP2000351912A (en) | 1999-04-05 | 2000-03-13 | Pigment composition and aqueous pigment dispersion using the same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11-97169 | 1999-04-05 | ||
| JP9716999 | 1999-04-05 | ||
| JP2000068058A JP2000351912A (en) | 1999-04-05 | 2000-03-13 | Pigment composition and aqueous pigment dispersion using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000351912A true JP2000351912A (en) | 2000-12-19 |
Family
ID=26438364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000068058A Withdrawn JP2000351912A (en) | 1999-04-05 | 2000-03-13 | Pigment composition and aqueous pigment dispersion using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000351912A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1146090A2 (en) | 2000-04-10 | 2001-10-17 | Seiko Epson Corporation | Process for the preparation of pigment dispersion, pigment dispersion obtained by the same, ink jet recording ink comprising the same, and recording method and recording material using the same |
| JP2009544774A (en) * | 2006-07-25 | 2009-12-17 | クラリアント・ファイナンス・（ビーブイアイ）・リミテッド | Pigments modified with polymerizable coatings, their manufacture and use |
| WO2015046011A1 (en) * | 2013-09-27 | 2015-04-02 | Dic株式会社 | Method for manufacturing a water-based ink for inkjet printing and a water-based pigment dispersion |
| CN107780240A (en) * | 2016-08-30 | 2018-03-09 | 江苏吉华化工有限公司 | A kind of preparation method of strong basicity resisting dispersion dye |
-
2000
- 2000-03-13 JP JP2000068058A patent/JP2000351912A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1146090A2 (en) | 2000-04-10 | 2001-10-17 | Seiko Epson Corporation | Process for the preparation of pigment dispersion, pigment dispersion obtained by the same, ink jet recording ink comprising the same, and recording method and recording material using the same |
| US6916862B2 (en) | 2000-04-10 | 2005-07-12 | Seiko Epson Corporation | Process for the preparation of pigment dispersion, pigment dispersion obtained by the same, ink jet recording ink comprising the same, and recording method and recorded material using the same |
| JP2009544774A (en) * | 2006-07-25 | 2009-12-17 | クラリアント・ファイナンス・（ビーブイアイ）・リミテッド | Pigments modified with polymerizable coatings, their manufacture and use |
| WO2015046011A1 (en) * | 2013-09-27 | 2015-04-02 | Dic株式会社 | Method for manufacturing a water-based ink for inkjet printing and a water-based pigment dispersion |
| CN107780240A (en) * | 2016-08-30 | 2018-03-09 | 江苏吉华化工有限公司 | A kind of preparation method of strong basicity resisting dispersion dye |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI454536B (en) | Method of producing water-based pigment dispersion and ink for ink-jet recording | |
| JP3139396B2 (en) | Manufacturing method of printing ink | |
| EP0921163B1 (en) | Pigment composition and aqueous pigment dispersion prepared therefrom | |
| US4456485A (en) | Process for the preparation of easily dispersible, high color strength, powdered alkali blue pigments | |
| CN108864752B (en) | Water-dispersible pigment red 57:1 modified pigment and preparation method thereof | |
| JP4659162B2 (en) | Method for producing aqueous pigment dispersion | |
| JPH09291221A (en) | Production of pigment composition, pigment composition and its use | |
| US4709021A (en) | Copper phthalocyanine pigments | |
| JPH08198973A (en) | Organic pigment mixible by stirring | |
| JP2000351912A (en) | Pigment composition and aqueous pigment dispersion using the same | |
| JP4190218B2 (en) | Insoluble azo pigment and coloring composition | |
| US6379451B1 (en) | Pigment composition and aqueous pigment dispersion product using the same | |
| CA1084470A (en) | Improve pigments and pigment comminution process | |
| US7115164B2 (en) | Preparation of yellow pigments | |
| JPH11124511A (en) | Pigment preparation in pellet form, preparation thereof and use thereof | |
| WO2015015832A1 (en) | Phthalocyanine pigment composition, method for manufacturing same, and ink | |
| US4448607A (en) | Conditioning crude phthalocyanine pigments | |
| JP3882358B2 (en) | Pigment composition and aqueous pigment dispersion using the same | |
| JP2004010778A (en) | Readily dispersible pigment composition and method for producing the same | |
| JP2003165925A (en) | Pigment composition and production method therefor | |
| JPH03223364A (en) | Copper phthalocyanine pigment composition and pigment dispersion composition made therefrom | |
| JP2005008806A (en) | Method for producing beta-form copper phthalocyanine pigment | |
| JP2002069325A (en) | Method for producing pigment dispersion and the resultant pigment dispersion | |
| JP2000080299A (en) | Production of aqueous dispersion of pigment | |
| JP2004035655A (en) | Method of manufacturing pigment composition, pigment dispersion using pigment composition manufacured by the method, and resin composition for coloring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050401 |
|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20090302 |