JPH0770466A - Blue pigment slurry and production thereof - Google Patents
Blue pigment slurry and production thereofInfo
- Publication number
- JPH0770466A JPH0770466A JP14893193A JP14893193A JPH0770466A JP H0770466 A JPH0770466 A JP H0770466A JP 14893193 A JP14893193 A JP 14893193A JP 14893193 A JP14893193 A JP 14893193A JP H0770466 A JPH0770466 A JP H0770466A
- Authority
- JP
- Japan
- Prior art keywords
- blue pigment
- pigment slurry
- pigment
- slurry
- coo
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、青色顔料スラリー及び
その製造方法に関する。FIELD OF THE INVENTION The present invention relates to a blue pigment slurry and a method for producing the same.
【０００２】[0002]
【従来の技術】青色無機顔料として、ＣｏＯ・ＺｎＯ・
ＳｉＯ2 系青色顔料が知られている。この顔料は、フェ
ナサイト構造をした、冴えた赤みの色相を有し、種々の
堅牢度にも優れている。しかし、通常市場から入手でき
る顔料は粒度が粗く、ホーローなどを初めとする陶磁器
用に用途が限定されていた。この顔料を塗料や蛍光体な
どの用途に用いるにはサブミクロンに分散する必要があ
る。2. Description of the Related Art As a blue inorganic pigment, CoO.ZnO.
A SiO 2 type blue pigment is known. This pigment has a phenasite structure, has a reddish hue, and is excellent in various fastnesses. However, pigments that are usually available on the market have a coarse particle size, and their use is limited to ceramics such as enamel. In order to use this pigment for applications such as paints and phosphors, it is necessary to disperse it into submicrons.
【０００３】分散方法は分散剤を用いた湿式分散法が優
れているが、サブミクロン粒子は乾燥すると、凝集傾向
が強いため、分散後、スラリー状態のまま目的の用途に
用いるのが好ましい。しかし、顔料分散スラリーを輸送
・貯蔵後に用いる場合は、分散剤の種類により、しばし
ば顔料が硬い沈降層を形成し、容器等からの取り出しが
容易でなく、それ故、再分散性の向上が要求されてい
た。Although a wet dispersion method using a dispersant is excellent as a dispersion method, since submicron particles have a strong aggregation tendency when dried, it is preferably used for the intended purpose in a slurry state after dispersion. However, when the pigment-dispersed slurry is used after transportation and storage, the pigment often forms a hard sedimentary layer depending on the type of the dispersant, and it is not easy to take it out of the container, etc. Therefore, improvement in redispersibility is required. It had been.
【０００４】[0004]
【発明が解決しようとする課題】そこで、本発明は、上
記の欠点を解消し、再分散性の優れた青色顔料スラリー
及びその製造方法を提供しようとするものである。Therefore, the present invention is intended to solve the above-mentioned drawbacks and to provide a blue pigment slurry having excellent redispersibility and a method for producing the same.
【０００５】[0005]
【課題を解決するための手段】本発明は、ＣｏＯ・Ｚｎ
Ｏ・ＳｉＯ2 系青色顔料スラリーに有機酸又はリン酸を
添加して湿式分散処理を施したことを特徴とする青色顔
料スラリー及びその製造方法である。The present invention is directed to CoO.Zn.
A blue pigment slurry is characterized in that an organic acid or phosphoric acid is added to an O.SiO 2 -based blue pigment slurry to perform a wet dispersion treatment, and a method for producing the same.
【０００６】本発明で使用するＣｏＯ・ＺｎＯ・ＳｉＯ
2 系青色顔料は、特願平４−１１４８２１号出願に詳述
した顔料を使用することができる。顔料の分散方法とし
ては、ボールミル、サンドミル等を用いる湿式分散法が
用いられる。CoO.ZnO.SiO used in the present invention
As the 2 type blue pigment, the pigments described in detail in Japanese Patent Application No. 4-114821 can be used. As a method for dispersing the pigment, a wet dispersion method using a ball mill, a sand mill or the like is used.
【０００７】本発明で使用する有機酸としては、クエン
酸、酒石酸、メタリン酸等を挙げることができるが、特
に、クエン酸が好ましい。顔料スラリーに添加する酸の
量は、顔料に対して０．０５〜５重量％の範囲、特に、
０．１〜３重量％の範囲が好ましい。この範囲を下回る
と、分散性が充分でなく、この範囲を越えると、塗料
化、蛍光体化等の次工程でコンタミネーション等の悪影
響を及ぼす場合があるので好ましくない。Examples of the organic acid used in the present invention include citric acid, tartaric acid, metaphosphoric acid, etc., and citric acid is particularly preferable. The amount of acid added to the pigment slurry is in the range of 0.05 to 5% by weight, based on the pigment, especially
The range of 0.1 to 3% by weight is preferable. If it is less than this range, the dispersibility is not sufficient, and if it exceeds this range, adverse effects such as contamination may occur in the subsequent steps such as coating and phosphor formation, which is not preferable.
【０００８】[0008]
【作用】本発明者等は、ＣｏＯ・ＺｎＯ・ＳｉＯ2 系青
色顔料を種々研究する過程で、顔料分散時、スラリー中
に有機酸又はリン酸を添加することにより、硬い沈降層
の形成を防止し、取扱いが容易で再分散性の優れた青色
顔料スラリーを提供することが可能となった。上記顔料
スラリーの再分散性向上の理由は定かでないが、分散
時、スラリー中に添加された分散剤が、顔料に対して適
度な分散力を持つためと思われる。The present inventors prevent the formation of a hard sedimentary layer by adding an organic acid or phosphoric acid to the slurry during the dispersion of the pigment in the course of various studies on the CoO / ZnO / SiO 2 type blue pigment. However, it has become possible to provide a blue pigment slurry which is easy to handle and has excellent redispersibility. The reason for improving the redispersibility of the pigment slurry is not clear, but it is considered that the dispersant added to the slurry at the time of dispersion has an appropriate dispersibility for the pigment.
【０００９】[0009]
（実施例１）Ｃｏ／Ｓｉ、及びＺｎ／Ｓｉのモル比が
１．０、平均粒径１．２μｍのＣｏＯ・ＺｎＯ・ＳｉＯ
2 系顔料１７５重量部、クエン酸０．８８重量部、脱イ
オン水９９２重量部及びガラスビーズ（直径３ｍｍ）１
３００重量部を混合し、ボールミル分散を１１０回転で
５時間実施し、分散顔料スラリーを得た。顔料の平均粒
径は０．４μｍであった。この顔料スラリーをポットに
入れて室温で２４時間放置したが、沈降層は軟らかく、
ポットからの取り出しは容易であった。(Example 1) CoO / ZnO / SiO having a Co / Si and Zn / Si molar ratio of 1.0 and an average particle diameter of 1.2 μm.
2 type pigment 175 parts by weight, citric acid 0.88 parts by weight, deionized water 992 parts by weight and glass beads (diameter 3 mm) 1
300 parts by weight were mixed, and ball mill dispersion was performed at 110 rpm for 5 hours to obtain a dispersed pigment slurry. The average particle size of the pigment was 0.4 μm. This pigment slurry was put in a pot and left at room temperature for 24 hours, but the sedimentation layer was soft,
Removal from the pot was easy.
【００１０】（比較例１〜４）実施例１において、分散
剤としてクエン酸の代わりに、それぞれクエン酸ソー
ダ、酒石酸ソーダ、酒石酸カリ、メタリン酸ソーダを用
いた以外、実施例１と同様にして顔料スラリーを作製し
た。顔料の平均粒径はすべて０．４μｍであった。上記
の顔料スラリーをそれぞれのポットに入れて室温で２４
時間放置したところ、沈降層は総て非常に硬く、ポット
からの取り出しは困難であった。Comparative Examples 1 to 4 In the same manner as in Example 1, except that sodium citrate, sodium tartrate, potassium tartrate, and sodium metaphosphate were used as the dispersant in place of citric acid. A pigment slurry was prepared. The average particle size of all the pigments was 0.4 μm. Add the above pigment slurries to each pot at room temperature for 24
When left for a period of time, all the sedimented layers were very hard and it was difficult to remove them from the pot.
【００１１】[0011]
【発明の効果】本発明は、上記の構成を採用することに
より、青色顔料スラリーの再分散性を向上させることが
可能になった。According to the present invention, by adopting the above constitution, it becomes possible to improve the redispersibility of the blue pigment slurry.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 寺田 裕美 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 西尾 章 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 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiromi Terada 1-7-6 Nihonbashi Bakurocho, Chuo-ku, Tokyo Inside Dainichi Seika Kogyo Co., Ltd. (72) Inventor Akira Nishio 1-7-6 Nihonbashi Bakuro-cho, Chuo-ku, Tokyo Dainichi Seika Kogyo Co., Ltd.
Claims (3)
ラリーに有機酸又はリン酸を添加してなる青色顔料スラ
リー。1. A blue pigment slurry prepared by adding an organic acid or phosphoric acid to a CoO.ZnO.SiO 2 type blue pigment slurry.
ラリーに有機酸又はリン酸を添加して湿式分散処理を施
すことを特徴とする青色顔料スラリーの製造方法。2. A method for producing a blue pigment slurry, which comprises adding an organic acid or phosphoric acid to a CoO.ZnO.SiO 2 type blue pigment slurry and performing a wet dispersion treatment.
方法において、有機酸としてクエン酸を用いることを特
徴とする青色顔料スラリーの製造方法。3. The method for producing a blue pigment slurry according to claim 2, wherein citric acid is used as the organic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14893193A JPH0770466A (en) | 1993-06-21 | 1993-06-21 | Blue pigment slurry and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14893193A JPH0770466A (en) | 1993-06-21 | 1993-06-21 | Blue pigment slurry and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0770466A true JPH0770466A (en) | 1995-03-14 |
Family
ID=15463868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14893193A Pending JPH0770466A (en) | 1993-06-21 | 1993-06-21 | Blue pigment slurry and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0770466A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5870448A (en) * | 1996-05-14 | 1999-02-09 | Canon Kabushiki Kaisha | X-ray mask and fabrication process using it |
| WO2016043159A1 (en) * | 2014-09-16 | 2016-03-24 | コニカミノルタ株式会社 | Phosphor dispersion liquid, method for manufacturing led device using same, and led device |
| CN110790508A (en) * | 2019-11-15 | 2020-02-14 | 黄山市晶特美新材料有限公司 | Cobalt blue agent for glass slurry and preparation method thereof |
-
1993
- 1993-06-21 JP JP14893193A patent/JPH0770466A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5870448A (en) * | 1996-05-14 | 1999-02-09 | Canon Kabushiki Kaisha | X-ray mask and fabrication process using it |
| WO2016043159A1 (en) * | 2014-09-16 | 2016-03-24 | コニカミノルタ株式会社 | Phosphor dispersion liquid, method for manufacturing led device using same, and led device |
| CN110790508A (en) * | 2019-11-15 | 2020-02-14 | 黄山市晶特美新材料有限公司 | Cobalt blue agent for glass slurry and preparation method thereof |
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