JP2003049102A - Method for producing printing ink - Google Patents
Method for producing printing inkInfo
- Publication number
- JP2003049102A JP2003049102A JP2001238834A JP2001238834A JP2003049102A JP 2003049102 A JP2003049102 A JP 2003049102A JP 2001238834 A JP2001238834 A JP 2001238834A JP 2001238834 A JP2001238834 A JP 2001238834A JP 2003049102 A JP2003049102 A JP 2003049102A
- Authority
- JP
- Japan
- Prior art keywords
- printing ink
- pigment
- copper phthalocyanine
- resin
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、顔料の形態を経る
ことなく銅フタロシアニンのプレ顔料（顔料の前駆体）
を使用して直接印刷インキを製造する合理化された方法
において、乾式粉砕時のプレ顔料の凝集を緩和し、なお
且つ樹脂を多量に使用することによる悪影響のないプレ
顔料を使用した印刷インキの製造方法に関し、低製造コ
ストで、優れた品質の印刷インキを提供することを目的
とする。TECHNICAL FIELD The present invention relates to a copper phthalocyanine pre-pigment (pigment precursor) without undergoing the form of a pigment.
In a streamlined method of directly producing a printing ink by using, the production of a printing ink using a pre-pigment that alleviates agglomeration of the pre-pigment during dry pulverization and has no adverse effect due to the use of a large amount of resin It is an object of the present invention to provide a printing ink of excellent quality at a low manufacturing cost.
【０００２】[0002]
【従来の技術】一般に、銅フタロシアニン顔料は、例え
ば、フタル酸またはその誘導体、尿素またはその誘導体
を銅化合物および触媒の存在下に有機溶剤中で加熱反応
させる尿素法（ワイラー法）や、フタロジニトリルを銅
化合物の存在下に有機溶剤中で加熱反応させるニトリル
法などの方法で合成される。合成後の銅フタロシアニン
は粗製銅フタロシアニンとよばれ、一次粒子が非常に粗
大（１０〜１００μｍ）であることからそのまま顔料と
して使用することはできない。2. Description of the Related Art Generally, copper phthalocyanine pigments include, for example, a urea method (Wyler method) in which phthalic acid or a derivative thereof, urea or a derivative thereof is reacted by heating in an organic solvent in the presence of a copper compound and a catalyst, and a phthalocyanine pigment. It is synthesized by a method such as a nitrile method in which a nitrile is heated and reacted in an organic solvent in the presence of a copper compound. The synthesized copper phthalocyanine is called crude copper phthalocyanine, and since the primary particles are very coarse (10 to 100 μm), it cannot be used as it is as a pigment.
【０００３】このため、従来、印刷インキを製造する際
には、粗製銅フタロシアニンを乾式磨砕法や湿式磨砕法
に代表される顔料化の方法によって、一次粒子を微細に
調整（１μｍ以下）し、顔料としての適性を付与したも
のが使用されており、印刷インキは、顔料化された銅フ
タロシアニン（銅フタロシアニン顔料）を三本ロールな
どのロールミル、ニーダーなどの混練分散機やボールミ
ルやビーズミルなどの分散機を使用して印刷インキ用樹
脂または樹脂溶液中に均一に分散させることによって製
造されている。Therefore, conventionally, in the production of printing ink, the primary particles are finely adjusted (1 μm or less) by a method of pigmenting a crude copper phthalocyanine represented by a dry grinding method or a wet grinding method. It is used as a pigment that has aptitude as a pigment. For printing ink, pigmented copper phthalocyanine (copper phthalocyanine pigment) is dispersed in roll mills such as three rolls, kneading and dispersing machines such as kneaders and ball mills and beads mills. It is manufactured by uniformly dispersing in a resin for printing ink or a resin solution using a machine.
【０００４】この顔料化の工程には多大な労力を要する
ことから、合理化された印刷インキの製造方法として、
銅フタロシアニン顔料を使用することなく、粗製銅フタ
ロシアニンを、例えば、乾式アトライターなどで粉砕
（乾式粉砕）して微細に調製したプレ（ｐｒｅ）顔料
（顔料前駆体）を使用し、印刷インキの製造工程で顔料
化と同時に印刷インキを製造する方法が提案されている
（特公昭５５−６６７０号公報、特開平２−２９４３６
５号公報、特開平９−２７２８３３号公報など）。Since this pigmentation process requires a great deal of labor, a rationalized method for producing printing ink is as follows.
Production of printing ink using a pre-pigment (pigment precursor) finely prepared by pulverizing (dry pulverizing) crude copper phthalocyanine with, for example, a dry attritor without using a copper phthalocyanine pigment. A method of producing a printing ink at the same time as pigmentation in a process has been proposed (Japanese Patent Publication No. 55-6670, JP-A-2-29436).
No. 5, JP-A-9-272833, etc.).
【０００５】特に、乾式粉砕を印刷インキ用樹脂の存在
下に行う特開平２−２９４３６５号公報や特開平９−２
７２８３３号公報などに記載の方法は、プレ顔料の凝集
を緩和し、プレ顔料の顔料への転換およびインキ化を効
率化する点で、非常に優れた印刷インキの製造方法であ
る。例えば、特開平９−２７２８３３号公報に記載の方
法は、粗製銅フタロシアニンをそれに対して２０〜８０
重量％の印刷インキ用樹脂と共に乾式粉砕したものをプ
レ顔料とし、これを印刷インキ用溶剤または印刷インキ
用ワニス中で８０〜１７０℃に加熱することで、プレ顔
料の顔料化と同時に印刷インキを製造する方法である。Particularly, dry pulverization is carried out in the presence of a resin for printing inks, as disclosed in JP-A-2-294365 and JP-A-9-2.
The method described in Japanese Patent No. 72833 is a very excellent method for producing a printing ink, in that the aggregation of the pre-pigment is alleviated, and the conversion of the pre-pigment into a pigment and the formation of an ink are made efficient. For example, in the method described in JP-A-9-272833, crude copper phthalocyanine is used in an amount of 20-80
Dry pulverized with a resin for printing ink in weight% is used as a pre-pigment, and this is heated to 80 to 170 ° C. in a solvent for a printing ink or a varnish for a printing ink, so that the pre-pigment is pigmented and at the same time a printing ink is formed. It is a manufacturing method.
【０００６】上記のような印刷インキ用樹脂を使用する
方法では、十分な粉砕効果を得るためには比較的多量の
樹脂を必要とするが、多量の樹脂の使用は、乾式粉砕時
の発熱による粉砕機内部への磨砕物の固着や、蓄熱によ
る摩砕物発火の危険性など安全運転に対する課題を抱え
ている。また樹脂は、乾式粉砕時の衝撃や発熱によって
酸化や壊（開）裂などの構造破壊を起こす恐れもあり、
劣化した樹脂は、インキの色相面だけでなく、粘弾性や
乳化特性などの印刷適性にも重大な影響を及ぼすことが
考えられる。In the method using the resin for printing ink as described above, a relatively large amount of resin is required to obtain a sufficient crushing effect. However, the use of a large amount of resin is caused by the heat generated during dry crushing. There are challenges to safe operation such as the adherence of the ground material inside the crusher and the danger of ignition of the ground material due to heat storage. In addition, the resin may cause structural damage such as oxidation or breakage (opening) due to shock or heat generated during dry pulverization.
It is considered that the deteriorated resin significantly affects not only the hue surface of the ink but also printability such as viscoelasticity and emulsification property.
【０００７】[0007]
【発明が解決しようとする課題】本発明の課題は、顔料
の形態を経ることなく銅フタロシアニンのプレ顔料を使
用して直接印刷インキを製造する合理化された方法にお
いて、プレ顔料の凝集を緩和し、なお且つ樹脂を多量に
使用したことによる種々の悪影響のない製造方法を開発
し、低製造コストで、優れた品質の印刷インキを提供す
ることにある。The object of the present invention is to reduce the agglomeration of pre-pigments in a streamlined process for producing direct printing inks using copper phthalocyanine pre-pigments without going through the pigment form. In addition, it is to develop a manufacturing method that does not have various adverse effects due to the large amount of resin used, and to provide a printing ink of excellent quality at a low manufacturing cost.
【０００８】[0008]
【課題を解決するための手段】本発明者らは、粗製銅フ
タロシアニンの乾式粉砕を、水溶性無機塩の存在下に行
うか、水溶性無機塩に加えて体質顔料および／または印
刷インキ用樹脂の存在下に行うことで、乾式粉砕時に印
刷インキ用樹脂を全く使用しないか、あるいは使用量を
大幅に削減でき、しかも樹脂を多量に使用したのと同様
の粉砕効果が得られることを見いだし、本発明に至っ
た。Means for Solving the Problems The present inventors carried out dry pulverization of crude copper phthalocyanine in the presence of a water-soluble inorganic salt, or in addition to the water-soluble inorganic salt, an extender pigment and / or a resin for printing ink. By performing in the presence of, it is found that the resin for printing ink is not used at all during dry pulverization, or the amount used can be greatly reduced, and the same pulverization effect as when using a large amount of resin can be obtained. The present invention has been completed.
【０００９】すなわち、本発明は、少なくとも銅フタロ
シアニンおよび印刷インキ用樹脂を含む印刷インキを、
顔料の形態を経ることなく銅フタロシアニンのプレ顔料
を使用して直接製造する方法において、プレ顔料とし
て、粗製銅フタロシアニンを、水溶性無機塩と共に、あ
るいは、水溶性無機塩と、体質顔料および／または印刷
インキ用樹脂と共に乾式粉砕し、次に水溶性無機塩を除
去して調製された組成物を使用することを特徴とする印
刷インキの製造方法である。That is, the present invention provides a printing ink containing at least copper phthalocyanine and a resin for printing ink,
In the method of directly producing using a pre-pigment of copper phthalocyanine without going through the form of a pigment, as a pre-pigment, a crude copper phthalocyanine, together with a water-soluble inorganic salt, or a water-soluble inorganic salt, an extender pigment and / or A method for producing a printing ink, which comprises dry pulverizing with a printing ink resin, and then using a composition prepared by removing a water-soluble inorganic salt.
【００１０】[0010]
【発明の実施の形態】次に発明の実施の形態を挙げて、
本発明を更に詳細に説明する。本発明は、顔料化工程を
経ていない銅フタロシアニンのプレ（ｐｒｅ）顔料（顔
料の前駆体）を用いて直接印刷インキを製造する方法に
おいて、プレ顔料として粗製銅フタロシアニンと、
（１）水溶性無機塩とを、または（２）水溶性無機塩と
共に体質顔料および／または印刷インキ用樹脂とを乾式
粉砕し、粉砕物から水溶性無機塩を除去したものを使用
すること、すなわち印刷インキ用樹脂を全く使用しない
か、非常に少ない使用量で調製したプレ顔料を使用する
ことが特徴である。BEST MODE FOR CARRYING OUT THE INVENTION Next, the embodiments of the present invention will be described.
The present invention will be described in more detail. The present invention is a method for directly producing a printing ink using a copper phthalocyanine pre-pigment (precursor of pigment) which has not been subjected to a pigmentation step, wherein crude copper phthalocyanine is used as a pre-pigment,
(1) a water-soluble inorganic salt or (2) a water-soluble inorganic salt and an extender pigment and / or a resin for a printing ink are dry-ground, and the ground product is used to remove the water-soluble inorganic salt. That is, it is characterized in that the printing ink resin is not used at all or the pre-pigment prepared in a very small amount is used.
【００１１】本発明における好ましいプレ顔料の調製方
法は、上記の（２）の粗製銅フタロシアニンを水溶性無
機塩と共に乾式粉砕する際、少量の体質顔料および印刷
インキ用樹脂の少なくともどちらか一方を共存させる方
法であり、印刷インキ用樹脂を使用する場合には粉砕
は、蓄熱や樹脂の劣化を起こさない程度の短時間に止め
ることが必要であり、できればヘンシェルミキサーなど
の強力撹拌機やジェットミルなどを使用して緊密に混合
することが好ましい。この方法においては、先ず粗製銅
フタロシアニンを水溶性無機塩と共に乾式粉砕し、得ら
れた粉砕物を体質顔料および／または印刷インキ用樹脂
とを、乾式粉砕するか、あるいはヘンシェルミキサーな
どの強力撹拌機やジェットミルなどを使用して強力に混
合して緊密な混合物とすることができる。A preferred method for preparing a pre-pigment in the present invention is to dry-pulverize the above-mentioned crude copper phthalocyanine (2) together with a water-soluble inorganic salt in the presence of a small amount of at least one of an extender pigment and a printing ink resin. When using a resin for printing ink, it is necessary to stop crushing within a short time so as not to cause heat accumulation or deterioration of the resin, and if possible, a strong stirrer such as a Henschel mixer or a jet mill. It is preferred to use intimate mixing. In this method, first, crude copper phthalocyanine is dry-ground with a water-soluble inorganic salt, and the resulting ground product is dry-ground with an extender pigment and / or a resin for printing ink, or a strong stirrer such as a Henschel mixer. It can be mixed vigorously using a jet mill or the like to form an intimate mixture.
【００１２】本発明の乾式粉砕には、乾式アトライター
の他、ボールミルや振動ミルなどのビーズなどの粉砕メ
ディアを使用するタイプや、二軸押出機やニーダーなど
の混練機、ジェットミルなどの粉砕機、ヘンシェルミキ
サーなどの強力撹拌機などの粉砕メディアを使用しない
タイプのものがいずれも使用できるが、粉砕効率から粉
砕メディアを使用するタイプのものが好ましい。In the dry pulverization of the present invention, in addition to the dry attritor, a type using a pulverizing medium such as beads such as a ball mill and a vibration mill, a kneading machine such as a twin-screw extruder and a kneader, and a pulverization such as a jet mill. Machines such as machines and Henschel mixers that do not use grinding media can be used, but those that use grinding media are preferable from the viewpoint of grinding efficiency.
【００１３】一般に樹脂共存下での乾式粉砕では、粉砕
時の発熱による粉砕機内部への磨砕物の固着や発火への
注意が必要であり、冷却下８０〜１５０℃の温度範囲で
行うが、本発明の方法は固着や発火の問題に対しても有
利であり、粉砕をより高温で行うこともできる。また逆
により低温で行うことも差支えなく、温度には特に限定
されない。Generally, in dry pulverization in the presence of a resin, it is necessary to pay attention to the adherence and ignition of the abraded material inside the pulverizer due to the heat generated during pulverization, and it is carried out in a temperature range of 80 to 150 ° C. under cooling. The method of the present invention is also advantageous for problems of sticking and ignition, and grinding can be carried out at higher temperatures. Inversely, it may be performed at a low temperature, and the temperature is not particularly limited.
【００１４】本発明で使用する水溶性無機塩としては、
例えば、塩化ナトリウム、硫酸ナトリウム、炭酸ナトリ
ウム、塩化カルシウム、塩化バリウム、硫酸アルミニウ
ムなどの水可溶性の塩であればいずれも使用できるが、
塩化ナトリウム、硫酸ナトリウムが好ましい。水溶性無
機塩の使用量は、粗製銅フタロシアニンに対して１０〜
１０００重量％であり、好ましくは５０〜５００重量％
である。As the water-soluble inorganic salt used in the present invention,
For example, any of water-soluble salts such as sodium chloride, sodium sulfate, sodium carbonate, calcium chloride, barium chloride, and aluminum sulfate can be used,
Sodium chloride and sodium sulfate are preferred. The amount of the water-soluble inorganic salt used is 10 to the crude copper phthalocyanine.
1000% by weight, preferably 50-500% by weight
Is.
【００１５】本発明で使用する体質顔料としては、屈折
率が小さく、顔料の色相や透明性に影響の少ないもので
あればいずれでも良く、例えば、炭酸カルシウム、酸化
亜鉛（亜鉛華）、硫酸バリウム、バライト粉、クレー、
タルク、アルミナホワイト、ホワイトカーボン（微粉シ
リカ）などが挙げられ、これらは単独であるいは混合物
として使用される。これらのなかでは炭酸カルシウムが
好ましい。炭酸カルシウムは、従来、濃度や粘性の調製
剤として印刷インキに使用される体質顔料であり、印刷
インキの品質面への影響が比較的少ない利点があるもの
の、多量に使用するとインキの粘性に悪影響を及ぼすた
め注意を要する。体質顔料の使用量は、粗製銅フタロシ
アニンに対して１〜１００重量％であり、好ましくは５
〜３０重量％である。The extender pigment used in the present invention may be any one as long as it has a small refractive index and little influence on the hue and transparency of the pigment, and examples thereof include calcium carbonate, zinc oxide (zinc white) and barium sulfate. , Barite powder, clay,
Examples thereof include talc, alumina white, and white carbon (fine silica), which are used alone or as a mixture. Of these, calcium carbonate is preferred. Calcium carbonate is an extender pigment that is conventionally used in printing inks as a concentration and viscosity adjusting agent, and has the advantage of having relatively little effect on the quality of printing inks, but when used in large amounts, it adversely affects ink viscosity. Requires attention because it affects. The amount of the extender pigment used is 1 to 100% by weight based on the crude copper phthalocyanine, and preferably 5
~ 30% by weight.
【００１６】本発明で使用する印刷インキ用樹脂として
は、一般に印刷インキに使用されるものであればいずれ
の樹脂でも良く、例えば、フェノール樹脂及びその変性
物、マレイン酸樹脂及びその変性物、アルキッド樹脂及
びその変性物、石油樹脂、変性ロジンなど、およびそれ
らの混合物が挙げられるが、好ましくはロジン変性フェ
ノール樹脂である。印刷インキ用樹脂の使用量は、粗製
銅フタロシアニンに対して１〜１００重量％であり、好
ましくは５〜３０重量％である。The resin for the printing ink used in the present invention may be any resin as long as it is generally used for printing inks, and examples thereof include a phenol resin and its modified product, a maleic acid resin and its modified product, and alkyd. Examples thereof include resins and modified products thereof, petroleum resins, modified rosins, and the like, and a mixture thereof, with preference given to rosin modified phenolic resins. The amount of the printing ink resin used is 1 to 100% by weight, preferably 5 to 30% by weight, based on the crude copper phthalocyanine.
【００１７】本発明で使用される粗製銅フタロシアニン
は、尿素法（ワイラー法）を加圧下（好ましくは０．２
〜０．７ＭＰａ）で行って合成した銅フタロシアニンを
用いるのが好ましい。一般に、粗製銅フタロシアニン中
には数重量％程度の反応不純物が含有されるが、反応不
純物はプレ顔料の顔料への転換を阻害し、印刷インキの
黄ぐすみの原因になったり、印刷インキ適性にも重大な
影響を与える。その点、加圧下での合成は、常圧下での
合成に比べて、銅フタロシアニン結晶内部への反応不純
物の取り込み量が少なく、高純度に銅フタロシアニンを
調製できる利点がある。The crude copper phthalocyanine used in the present invention is a urea method (Wyler method) under pressure (preferably 0.2).
It is preferable to use copper phthalocyanine synthesized by performing the synthesis at about 0.7 MPa). Generally, crude copper phthalocyanine contains about several wt% of reactive impurities, but the reactive impurities hinder the conversion of pre-pigment into pigment, causing yellowing of the printing ink, and the suitability for printing ink. Also has a significant impact. On the other hand, the synthesis under pressure has an advantage that the amount of the reaction impurities taken into the copper phthalocyanine crystal is small and the copper phthalocyanine can be prepared with high purity as compared with the synthesis under normal pressure.
【００１８】なお、乾式粉砕によりプレ顔料を調製する
際、必要により従来公知の顔料誘導体や高分子分散剤等
の顔料処理剤や分散剤あるいは界面活性剤、ロジンなど
を添加して乾式粉砕することができる。また、一般に印
刷インキに使用される石油系などの溶剤や有機溶剤を必
要に応じて配合できる点や、樹脂の劣化防止を目的に粉
砕を窒素ガス雰囲気下で行うことができる点も従来公知
の乾式粉砕と同様である。When preparing the pre-pigment by dry pulverization, if necessary, a pigment treating agent such as a pigment derivative or a polymer dispersant known in the art, a dispersant, a surfactant, rosin, etc. may be added for dry pulverization. You can It is also conventionally known that solvents such as petroleum-based solvents and organic solvents that are generally used in printing inks can be blended as needed, and that crushing can be performed in a nitrogen gas atmosphere for the purpose of preventing deterioration of the resin. It is similar to dry grinding.
【００１９】乾式粉砕後磨砕物から水溶性無機塩を除去
するが、除去方法は特に限定されない。通常、磨砕物を
水相に投入して解膠し、水性スラリーを濾過、水洗、乾
燥、および粉砕して、プレ顔料を調製する。なお、その
際除去された水溶性無機塩は、回収し、再利用すること
ができる。The water-soluble inorganic salt is removed from the ground product after dry pulverization, but the removal method is not particularly limited. Usually, the ground product is put into an aqueous phase for deflocculation, and the aqueous slurry is filtered, washed with water, dried, and ground to prepare a prepigment. The water-soluble inorganic salt removed at that time can be recovered and reused.
【００２０】[0020]
【実施例】次に参考例および実施例を挙げて本発明を更
に具体的に説明する。文中、部または％とあるのは重量
基準である。EXAMPLES The present invention will be described more specifically with reference to Examples and Reference Examples. In the text, parts or% are based on weight.
【００２１】参考例
乾式アトライターに粗製銅フタロシアニン１００部を加
え３０分間粉砕した。この粗製銅フタロシアニン磨砕物
のβ型結晶形の含有率は４３％であった。次いで、得ら
れた磨砕物１００部に、イソブチルアルコール４００
部、水６００部を加え、８０℃に加熱して５時間撹拌混
合した。この混合物を１．０％希硫酸水溶液１０００部
に投入して、８０℃で１時間加熱処理を行った後、濾
過、水洗、乾燥および粉砕して粉末のβ型銅フタロシア
ニン顔料（Ｃ．Ｉ．ＰｉｇｍｅｎｔＢｌｕｅ １５：
３）を得た。Reference Example 100 parts of crude copper phthalocyanine was added to a dry attritor and pulverized for 30 minutes. The content of β-type crystal form in this crude copper phthalocyanine ground product was 43%. Then, 100 parts of the obtained ground product is mixed with 400 parts of isobutyl alcohol.
Parts and 600 parts of water were added, and the mixture was heated to 80 ° C. and stirred and mixed for 5 hours. This mixture was put into 1000 parts of a 1.0% dilute sulfuric acid aqueous solution, heat-treated at 80 ° C. for 1 hour, filtered, washed with water, dried and pulverized to obtain a powdery β-type copper phthalocyanine pigment (C.I. Pigment Blue 15:
3) was obtained.
【００２２】得られたβ型銅フタロシアニン顔料１８部
を印刷インキ用ワニス（ロジン変性フェノール樹脂系ワ
ニス：不揮発分７０％）６７部に混合し、３本ロールに
て３回練肉してベースインキを得た。このベースインキ
に、さらに印刷インキ用ワニス１９部、７号ソルベント
６部、コンパウンド（インキ調整助剤）１０部を加えて
青色の印刷インキを調製した。この青色インキを、銅フ
タロシアニン顔料／酸化チタンが１／１０の重量比率と
なるように白インキと混合し、淡色インキ（着色力判
定）を得た。この青色インキ及び淡色インキを、従来法
による比較用のインキとした。18 parts of the obtained β-type copper phthalocyanine pigment was mixed with 67 parts of a varnish for printing ink (rosin-modified phenolic resin-based varnish: non-volatile content 70%), and the mixture was kneaded three times with a three-roll mill to form a base ink. Got A blue printing ink was prepared by further adding 19 parts of a varnish for printing ink, 6 parts of No. 7 solvent, and 10 parts of a compound (ink adjusting aid) to the base ink. This blue ink was mixed with white ink so that the weight ratio of copper phthalocyanine pigment / titanium oxide was 1/10 to obtain a light color ink (coloring strength judgment). The blue ink and the light color ink were used as comparative inks by the conventional method.
【００２３】実施例１
乾式アトライターに、粗製銅フタロシアニン５０部、塩
化ナトリウム１００部炭酸カルシウム５部を加えて１時
間粉砕した。この磨砕物を水１０００部中に投入して６
０℃で１時間撹拌した。スラリーを濾過、水洗し、次い
で乾燥、粉砕してプレ顔料を調製した。得られた組成物
中の銅フタロシアニンのβ型結晶の含有率は５０％であ
った。Example 1 50 parts of crude copper phthalocyanine, 100 parts of sodium chloride and 5 parts of calcium carbonate were added to a dry attritor and pulverized for 1 hour. Put this ground product in 1000 parts of water and
Stirred at 0 ° C. for 1 hour. The slurry was filtered, washed with water, then dried and pulverized to prepare a prepigment. The content of β-type crystals of copper phthalocyanine in the obtained composition was 50%.
【００２４】次に、得られたプレ顔料５０部、印刷イン
キ用ワニス（ロジン変性フェノール樹脂：不揮発分７０
％）１７０部を、ジャケット付きディゾルバー中で１１
０〜１２０℃で２時間撹拌し、得られた混合物を３本ロ
ールにて２回練肉してベースインキを得た。このベース
インキに、さらに上記の印刷インキ用ワニス４１．５
部、７号ソルベント（日本石油社製：石油系溶剤）１
６．５部、コンパウンド（インキ調製助剤）２５部を加
えて青色の印刷インキを調製した。この青色インキを、
銅フタロシアニン顔料／酸化チタンが１／１０の重量比
率となるように白インキと混合し、淡色インキを得た。
得られた青色インキ、淡色インキは、従来法によって作
製した参考例のそれぞれのインキと比較して、同等の色
相、着色力であり、粘弾性や乳化特性などのインキ適性
についても良好な性能を示した。Next, 50 parts of the obtained pre-pigment and a varnish for printing ink (rosin-modified phenol resin: non-volatile content 70)
%) 170 parts by weight in a jacketed dissolver
The mixture was stirred at 0 to 120 ° C. for 2 hours, and the resulting mixture was kneaded twice with a three-roll to obtain a base ink. In addition to this base ink, the above varnish for printing ink 41.5
Part, No. 7 Solvent (Nippon Oil Co., Ltd .: Petroleum solvent) 1
A blue printing ink was prepared by adding 6.5 parts and 25 parts of a compound (ink preparation aid). This blue ink
A copper phthalocyanine pigment / titanium oxide was mixed with a white ink in a weight ratio of 1/10 to obtain a light color ink.
The obtained blue ink and light color ink have the same hue and tinting strength as compared with the respective inks of the reference examples produced by the conventional method, and also have good performance in ink suitability such as viscoelasticity and emulsification characteristics. Indicated.
【００２５】実施例２
乾式アトライターに、粗製銅フタロシアニン５０部、塩
化ナトリウム１５０部を加えて１時間粉砕した。次に、
印刷インキ用樹脂（ロジン変性フェノール樹脂）５部を
加えてさらに１０分間粉砕した。この磨砕物を水１００
０部中に投入して６０℃で１時間撹拌した。スラリーを
濾過、水洗し、乾燥、粉砕してプレ顔料を調製した。Example 2 To a dry attritor, 50 parts of crude copper phthalocyanine and 150 parts of sodium chloride were added and ground for 1 hour. next,
5 parts of a resin for printing ink (rosin-modified phenolic resin) was added and pulverized for 10 minutes. This ground material in water 100
It was put into 0 part and stirred at 60 ° C. for 1 hour. The slurry was filtered, washed with water, dried and pulverized to prepare a pre-pigment.
【００２６】次いで、得られたプレ顔料５０部、印刷イ
ンキ用ワニス（ロジン変性フェノール樹脂：不揮発分７
０％）１６３．５部、７号ソルベント（日本石油社製：
石油系溶剤）２部を、ジャケット付きディゾルバー中で
１１０〜１２０℃で２時間撹拌し、混合物を３本ロール
にて２回練肉してベースインキを得た。このベースイン
キに、さらに印刷インキ用ワニス４７部、７号ソルベン
ト１５部、コンパウンド２５部を加えて青色の印刷イン
キを調製した。この青色インキを、銅フタロシアニン顔
料／酸化チタンが１／１０の重量比率となるように白イ
ンキと混合し、淡色インキを得た。得られた青色イン
キ、淡色インキは、参考例の従来法によって作製した参
考例のそれぞれのインキと比較して、同等の色相、着色
力であり、粘弾性や乳化特性などのインキ適性について
も良好な性能を示した。Next, 50 parts of the obtained pre-pigment and a varnish for printing ink (rosin-modified phenol resin: non-volatile component 7)
03.5%, 163.5 parts, No. 7 solvent (manufactured by Nippon Oil Co., Ltd .:
2 parts of a petroleum solvent) was stirred in a dissolver with a jacket at 110 to 120 ° C. for 2 hours, and the mixture was kneaded twice with a three-roll to obtain a base ink. To this base ink, 47 parts of a varnish for printing ink, 15 parts of No. 7 solvent, and 25 parts of compound were further added to prepare a blue printing ink. This blue ink was mixed with white ink so that the weight ratio of copper phthalocyanine pigment / titanium oxide was 1/10 to obtain a light color ink. The obtained blue ink and light color ink have the same hue and coloring power as compared with the respective inks of the reference example prepared by the conventional method of the reference example, and also have good ink suitability such as viscoelasticity and emulsification property. It showed excellent performance.
【００２７】実施例３
乾式アトライターに、粗製銅フタロシアニン５０部、塩
化ナトリウム１５０部、印刷インキ用樹脂（ロジン変性
フェノール樹脂）５部を加えて１時間粉砕した。この磨
砕物を水１０００部中に投入して６０℃で１時間撹拌
し、スラリーを濾過、水洗、乾燥、粉砕してプレ顔料を
得た。このプレ顔料を用い実施例２と同様にして青色イ
ンキ、淡色インキを得た。得られた青色インキ、淡色イ
ンキは、従来法による参考例のそれぞれのインキと同等
の色相、着色力であり、粘弾性や乳化特性などのインキ
適性についても実用に十分耐え得るものであった。Example 3 To a dry attritor, 50 parts of crude copper phthalocyanine, 150 parts of sodium chloride and 5 parts of a resin for printing ink (rosin modified phenolic resin) were added and pulverized for 1 hour. The ground product was put into 1000 parts of water and stirred at 60 ° C. for 1 hour, and the slurry was filtered, washed with water, dried and ground to obtain a pre-pigment. Using this prepigment, a blue ink and a light color ink were obtained in the same manner as in Example 2. The obtained blue ink and light-colored ink had the same hue and coloring power as those of the inks of Reference Examples according to the conventional method, and were sufficiently suitable for practical use in ink suitability such as viscoelasticity and emulsification characteristics.
【００２８】実施例４
乾式アトライターに、粗製銅フタロシアニン５０部、塩
化ナトリウム１００部を加えて１時間粉砕した。次にこ
の磨砕物をヘンシェルミキサーに移し、印刷インキ用樹
脂（ロジン変性フェノール樹脂）１０部を加えて３０分
間混合した。混合物を水１０００部中に投入して６０℃
で１時間撹拌し、スラリーを濾過、水洗、乾燥、粉砕し
てプレ顔料を調製した。Example 4 50 parts of crude copper phthalocyanine and 100 parts of sodium chloride were added to a dry attritor and pulverized for 1 hour. Next, the ground product was transferred to a Henschel mixer, 10 parts of a resin for printing ink (rosin-modified phenol resin) was added, and mixed for 30 minutes. Pour the mixture into 1000 parts of water at 60 ° C
After stirring for 1 hour, the slurry was filtered, washed with water, dried and ground to prepare a pre-pigment.
【００２９】次いで、得られたプレ顔料５０部、印刷イ
ンキ用ワニス（ロジン変性フェノール樹脂：不揮発分７
０％）１４３部、７号ソルベント３．５部を、ジャケッ
ト付きディゾルバー中で１１０〜１２０℃で２時間撹拌
し、混合物を３本ロールにて２回練肉してベースインキ
を得た。このベースインキに、さらに上記の印刷インキ
用ワニス４４部、７号ソルベント１４部、コンパウンド
２３部を加えて青色の印刷インキを調製した。又、この
青色インキを用い実施例１と同様にして淡色インキを調
製した。これらの青色インキおよび淡色インキは、従来
法による参考例のそれぞれのインキと同等の色相、着色
力であり、粘弾性や乳化特性などのインキ適性について
も良好な性能を示した。Next, 50 parts of the obtained pre-pigment and varnish for printing ink (rosin-modified phenol resin: non-volatile component 7)
(0%) 143 parts and No. 7 solvent 3.5 parts were stirred in a jacketed dissolver at 110 to 120 ° C. for 2 hours, and the mixture was kneaded twice with a three-roll to obtain a base ink. To this base ink, 44 parts of the above printing ink varnish, 14 parts of No. 7 solvent and 23 parts of compound were further added to prepare a blue printing ink. A light-colored ink was prepared in the same manner as in Example 1 using this blue ink. These blue ink and light-colored ink had the same hue and coloring power as those of the inks of Reference Examples according to the conventional method, and also showed good performance in ink suitability such as viscoelasticity and emulsification characteristics.
【００３０】実施例５
乾式アトライターに、粗製銅フタロシアニン５０部、塩
化ナトリウム５０部、炭酸カルシウム５部、印刷インキ
用樹脂（ロジン変性フェノール樹脂）５部を加えて１時
間粉砕した。この磨砕物を水１０００部中に投入して６
０℃で１時間撹拌し、スラリーを濾過、水洗、乾燥、粉
砕してプレ顔料を調製した。Example 5 50 parts of crude copper phthalocyanine, 50 parts of sodium chloride, 5 parts of calcium carbonate and 5 parts of a resin for printing ink (rosin-modified phenolic resin) were added to a dry attritor and pulverized for 1 hour. Put this ground product in 1000 parts of water and
The mixture was stirred at 0 ° C for 1 hour, and the slurry was filtered, washed with water, dried and pulverized to prepare a prepigment.
【００３１】次いで、得られたプレ顔料５０部、印刷イ
ンキ用ワニス（ロジン変性フェノール樹脂：不揮発分７
０％）１５０部、７号ソルベント２部を、ジャケット付
きディゾルバー中で１１０〜１２０℃で２時間撹拌し、
得られた混合物を３本ロールにて２回練肉してベースイ
ンキを得た。このベースインキに、さらに上記の印刷イ
ンキ用ワニス３８部、７号ソルベント１５部、コンパウ
ンド２３部を加えて青色の印刷インキを調製した。又、
この青色インキを用い実施例１と同様にして淡色インキ
を調製した。これらの青色インキ、淡色インキは、従来
法による参考例のそれぞれのインキと同等の色相、着色
力であり、粘弾性や乳化特性などのインキ適性について
も良好な性能を示した。Then, 50 parts of the obtained pre-pigment and a varnish for printing ink (rosin-modified phenol resin: non-volatile component 7)
0%) 150 parts, 2 parts of solvent No. 7 are stirred in a jacketed dissolver at 110 to 120 ° C. for 2 hours,
The obtained mixture was kneaded twice with a three-roll to obtain a base ink. To this base ink, 38 parts of the above varnish for printing ink, 15 parts of No. 7 solvent and 23 parts of compound were further added to prepare a blue printing ink. or,
Using this blue ink, a light-colored ink was prepared in the same manner as in Example 1. These blue inks and light-colored inks had the same hue and coloring power as those of the inks of Reference Examples by the conventional method, and also showed good performances in ink suitability such as viscoelasticity and emulsification characteristics.
【００３２】[0032]
【発明の効果】以上の本発明によれば、乾式粉砕時に水
溶性無機塩を使用し、印刷インキ用樹脂を全く使用しな
いか、あるいは使用量を大幅に削減して調製した銅フタ
ロシアニンのプレ顔料（顔料前駆体）を使用することに
より、粗製銅フタロシアニンを用いて顔料の形態を経る
ことなく、直接印刷インキを製造する合理化された製造
法により、従来の印刷インキ用樹脂を使用する方法の欠
点が改善され、高品質の印刷インキが提供される。According to the present invention described above, a copper phthalocyanine pre-pigment prepared by using a water-soluble inorganic salt at the time of dry grinding and using no resin for printing ink at all or by drastically reducing the amount used. By using (pigment precursor), the conventional copper-based resin for printing inks has a drawback due to a streamlined production method of directly producing a printing ink without using a crude copper phthalocyanine to form a pigment. Is improved and high quality printing ink is provided.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 庵原 一夫 東京都中央区日本橋馬喰町１−７−６ 大 日精化工業株式会社内 (72)発明者 土屋 弘司 東京都中央区日本橋馬喰町１−７−６ 大 日精化工業株式会社内 (72)発明者 幸正 弘 東京都中央区日本橋馬喰町１−７−６ 大 日精化工業株式会社内 (72)発明者 高見 尚徳 東京都中央区日本橋馬喰町１−７−６ 大 日精化工業株式会社内 Ｆターム(参考） 4J039 AB08 AD14 AD18 AE02 AE06 AF01 BA13 BA16 BA18 BA21 BA23 BA30 BA31 BC61 CA07 DA05 DA07 EA44 EA48 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Kazuo Anbara 1-7-6 Nihonbashi Bakurocho, Chuo-ku, Tokyo Large Within Nissei Chemical Co., Ltd. (72) Inventor Koji Tsuchiya 1-7-6 Nihonbashi Bakurocho, Chuo-ku, Tokyo Large Within Nissei Chemical Co., Ltd. (72) Inventor Hiromasa 1-7-6 Nihonbashi Bakurocho, Chuo-ku, Tokyo Large Within Nissei Chemical Co., Ltd. (72) Inventor Naonori Takami 1-7-6 Nihonbashi Bakurocho, Chuo-ku, Tokyo Large Within Nissei Chemical Co., Ltd. F term (reference) 4J039 AB08 AD14 AD18 AE02 AE06 AF01 BA13 BA16 BA18 BA21 BA23 BA30 BA31 BC61 CA07 DA05 DA07 EA44 EA48
Claims (8)
インキ用樹脂を含む印刷インキを、顔料の形態を経るこ
となく銅フタロシアニンのプレ顔料を使用して直接製造
する方法において、プレ顔料として、粗製銅フタロシア
ニンを水溶性無機塩と共に、あるいは、水溶性無機塩
と、体質顔料および／または印刷インキ用樹脂と共に乾
式粉砕し、次に水溶性無機塩を除去して調製された組成
物を使用することを特徴とする印刷インキの製造方法。1. A method for directly producing a printing ink containing at least a copper phthalocyanine and a resin for a printing ink by using a pre-pigment of copper phthalocyanine without going through a pigment form, wherein a crude copper phthalocyanine is water-soluble as a pre-pigment. Characterized in that a composition prepared by dry pulverizing with a water-soluble inorganic salt or with a water-soluble inorganic salt and an extender pigment and / or a resin for printing ink, and then removing the water-soluble inorganic salt is used. Printing ink manufacturing method.
溶性無機塩と共に乾式粉砕した後、さらに体質顔料およ
び／または印刷インキ用樹脂を加えて、乾式粉砕する
か、または強力に混合し、次に水溶性無機塩を除去して
調製された組成物である請求項１に記載の印刷インキの
製造方法。2. A pre-pigment is obtained by dry-milling a crude copper phthalocyanine together with a water-soluble inorganic salt, and then further adding an extender pigment and / or a resin for a printing ink, and dry-milling or strongly mixing, The method for producing a printing ink according to claim 1, which is a composition prepared by removing a water-soluble inorganic salt.
シアニンに対して１０〜１０００重量％である請求項１
または２に記載の印刷インキの製造方法。3. The use amount of the water-soluble inorganic salt is 10 to 1000% by weight based on the crude copper phthalocyanine.
Or the method for producing a printing ink according to 2.
ニンに対して１〜１００重量％である請求項１または２
に記載の印刷インキの製造方法。4. The use amount of the extender pigment is 1 to 100% by weight based on the crude copper phthalocyanine.
A method for producing a printing ink as described in.
タロシアニンに対して１〜１００重量％である請求項１
または２に記載の印刷インキの製造方法。5. The use amount of the printing ink resin is 1 to 100% by weight based on the crude copper phthalocyanine.
Or the method for producing a printing ink according to 2.
／または硫酸ナトリウムである請求項１または２に記載
の印刷インキの製造方法。6. The method for producing a printing ink according to claim 1, wherein the water-soluble inorganic salt is sodium chloride and / or sodium sulfate.
１または２に記載の印刷インキの製造方法。7. The method for producing a printing ink according to claim 1, wherein the extender pigment is calcium carbonate.
加圧条件下で行って製造されたものである、請求項１ま
たは２に記載の印刷インキの製造方法。8. The method for producing a printing ink according to claim 1, wherein the crude copper phthalocyanine is produced by performing the Weyler method under pressure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001238834A JP2003049102A (en) | 2001-08-07 | 2001-08-07 | Method for producing printing ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001238834A JP2003049102A (en) | 2001-08-07 | 2001-08-07 | Method for producing printing ink |
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| Publication Number | Publication Date |
|---|---|
| JP2003049102A true JP2003049102A (en) | 2003-02-21 |
Family
ID=19069689
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|---|---|---|---|
| JP2001238834A Pending JP2003049102A (en) | 2001-08-07 | 2001-08-07 | Method for producing printing ink |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009081850A1 (en) * | 2007-12-21 | 2009-07-02 | Dic Corporation | Pigment composition for printing ink, method for production thereof, and method for production of printing ink |
| JP2011225771A (en) * | 2010-04-22 | 2011-11-10 | Dic Corp | Copper phthalocyanine pigment composition and printing ink |
| CN103013228A (en) * | 2012-12-27 | 2013-04-03 | 茂名阪田油墨有限公司 | Preparation method of producing high-concentration kaolin planographic printing ink by adopting secondary kneading method |
| CN103045004A (en) * | 2012-12-27 | 2013-04-17 | 茂名阪田油墨有限公司 | Preparation method for producing basic ink of printing ink through staged kneading |
| JP2019524518A (en) * | 2016-08-08 | 2019-09-05 | グリースバッハ・ゼーレン | Method for processing residual powders from generative manufacturing methods |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009081850A1 (en) * | 2007-12-21 | 2009-07-02 | Dic Corporation | Pigment composition for printing ink, method for production thereof, and method for production of printing ink |
| JP4535207B2 (en) * | 2007-12-21 | 2010-09-01 | Ｄｉｃ株式会社 | Pigment composition for printing ink, method for producing the same, and method for producing printing ink |
| EP2253675A1 (en) * | 2007-12-21 | 2010-11-24 | DIC Corporation | Pigment composition for printing ink, method for production thereof, and method for production of printing ink |
| JPWO2009081850A1 (en) * | 2007-12-21 | 2011-05-06 | Dic株式会社 | Pigment composition for printing ink, method for producing the same, and method for producing printing ink |
| EP2253675A4 (en) * | 2007-12-21 | 2013-06-05 | Dainippon Ink & Chemicals | Pigment composition for printing ink, method for production thereof, and method for production of printing ink |
| US8754148B2 (en) | 2007-12-21 | 2014-06-17 | Dic Corporation | Pigment composition for printing ink, method for producing the same and method for producing printing ink |
| JP2011225771A (en) * | 2010-04-22 | 2011-11-10 | Dic Corp | Copper phthalocyanine pigment composition and printing ink |
| CN103013228A (en) * | 2012-12-27 | 2013-04-03 | 茂名阪田油墨有限公司 | Preparation method of producing high-concentration kaolin planographic printing ink by adopting secondary kneading method |
| CN103045004A (en) * | 2012-12-27 | 2013-04-17 | 茂名阪田油墨有限公司 | Preparation method for producing basic ink of printing ink through staged kneading |
| JP2019524518A (en) * | 2016-08-08 | 2019-09-05 | グリースバッハ・ゼーレン | Method for processing residual powders from generative manufacturing methods |
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