JP2008308605A5 - - Google Patents
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- JP2008308605A5 JP2008308605A5 JP2007158664A JP2007158664A JP2008308605A5 JP 2008308605 A5 JP2008308605 A5 JP 2008308605A5 JP 2007158664 A JP2007158664 A JP 2007158664A JP 2007158664 A JP2007158664 A JP 2007158664A JP 2008308605 A5 JP2008308605 A5 JP 2008308605A5
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- JP
- Japan
- Prior art keywords
- color filter
- pigment
- phthalocyanine
- type
- producing
- 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
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Description
当該水溶性有機溶剤の使用量は、特に限定されるものではないが、粗顔料1重量部に対して0.01〜5重量部が好ましい。
混練温度は、80〜120℃の間で行うことが好ましい。80度未満の温度で混練を行っても、120℃を超える温度で混練を行ってもε型銅フタロシアニンのε化率(銅フタロシアニンに含まれるε型結晶化率)は低く、耐熱性、コントラスト等が低下し、カラーフィルター用顔料として好ましくない。
本発明のカラーフィルター用顔料は遊離銅を含んでもよい。含まれる遊離銅は、銅フタロシアニンを合成する際の残存する遊離銅である場合や、合成後の銅フタロシアニンの分解によって生成したものである場合がある。
また、遊離銅は後記する酸類で洗浄を行うことができる。使用される酸類は、0.5%〜4%の塩酸または硫酸である。また、洗浄時の温度は、50〜90℃が好ましい。
好ましい遊離銅の含有率は、顔料組成物中に900質量ppm以下である場合が挙げられ、これ以上の含有率の場合には、得られるカラーフィルターの耐熱性が低下するので好ましくない。
Although the usage-amount of the said water-soluble organic solvent is not specifically limited, 0.01-5 weight part is preferable with respect to 1 weight part of crude pigments.
The kneading temperature is preferably 80 to 120 ° C. Whether kneaded at a temperature below 80 ° C. or kneaded at a temperature exceeding 120 ° C., the ε-type copper phthalocyanine has a low ε conversion rate (ε-type crystallization rate contained in copper phthalocyanine), heat resistance, and contrast Etc. are reduced, which is not preferable as a color filter pigment.
The pigment for a color filter of the present invention may contain free copper. The contained free copper may be free copper remaining when copper phthalocyanine is synthesized or may be produced by decomposition of copper phthalocyanine after synthesis.
Free copper can be washed with acids described later . The acids used are 0.5% to 4% hydrochloric acid or sulfuric acid. In addition, the temperature at the time of cleaning, 50~90 ℃ is not preferred.
Content of good Masui free copper, if it is 900 mass ppm or less in the pigment composition can be mentioned, in the case any more content, the heat resistance of the resulting color filter is undesirably reduced.
Claims (9)
(I)(A)ε型フタロシアニン顔料、及び
(B)顔料混合物中の含有率が4〜15質量%の一般式(1)
で表されるフタロシアニン誘導体、
を含む顔料混合物を、水溶性無機塩及び有機溶媒の存在下に80〜120℃で混練する工程
(II)前記(I)で得られた顔料混合物の混練物を、質量基準で濃度0.5〜4%の塩酸または硫酸で洗浄する工程
を含むカラーフィルター用顔料組成物の製造方法。 In the method for producing a color filter pigment composition,
(I) (A) ε-type phthalocyanine pigment, and (B) General formula (1) having a content of 4 to 15% by mass in the pigment mixture
A phthalocyanine derivative represented by
The kneaded product of a pigment mixture, a water-soluble inorganic salt and pigment mixture obtained in the step of kneading at 80 to 120 ° C. in the presence of an organic solvent (II) wherein (I) containing a concentration 0.5 on a mass basis A method for producing a pigment composition for a color filter, comprising a step of washing with -4% hydrochloric acid or sulfuric acid .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007158664A JP2008308605A (en) | 2007-06-15 | 2007-06-15 | Manufacturing method of blue pigment composition for color filter, and color filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007158664A JP2008308605A (en) | 2007-06-15 | 2007-06-15 | Manufacturing method of blue pigment composition for color filter, and color filter |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008308605A JP2008308605A (en) | 2008-12-25 |
JP2008308605A5 true JP2008308605A5 (en) | 2010-07-29 |
Family
ID=40236492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007158664A Pending JP2008308605A (en) | 2007-06-15 | 2007-06-15 | Manufacturing method of blue pigment composition for color filter, and color filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2008308605A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011162597A (en) * | 2010-02-05 | 2011-08-25 | Dic Corp | Zinc phthalocyanine pigment composition and method for producing the same |
WO2016163351A1 (en) * | 2015-04-07 | 2016-10-13 | Dic株式会社 | Organic pigment composition for color filters, method for producing same, and color filter |
US9904166B2 (en) * | 2015-04-21 | 2018-02-27 | Dic Corporation | Green pigment composition for color filters, and color filter |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002121420A (en) * | 2000-08-07 | 2002-04-23 | Dainippon Ink & Chem Inc | Copper phthalocyanine pigment and method for producing the same |
JP2003128950A (en) * | 2001-10-30 | 2003-05-08 | Dainippon Ink & Chem Inc | Surface-treated fine organic pigment and method for producing the same |
JP2004256739A (en) * | 2003-02-27 | 2004-09-16 | Dainippon Ink & Chem Inc | Pigment composition and process for preparing the same |
JP2005234009A (en) * | 2004-02-17 | 2005-09-02 | Dainippon Ink & Chem Inc | Blue pigment composition for color filter, its manufacturing method, and color filter containing the same in blue pixel portion |
JP2005275052A (en) * | 2004-03-25 | 2005-10-06 | Dainippon Ink & Chem Inc | Blue pigment composition for color filter and color filter |
JP2006091649A (en) * | 2004-09-27 | 2006-04-06 | Dainippon Ink & Chem Inc | Method for manufacturing pigment composition for blue-pixel portion of color filter, and the color filter |
JP2007304372A (en) * | 2006-05-12 | 2007-11-22 | Toyo Ink Mfg Co Ltd | Blue colored composition for color filter, and color filter |
US7905952B2 (en) * | 2007-02-07 | 2011-03-15 | Basf Se | Blue phthalocyanine pigment composition and its preparation |
-
2007
- 2007-06-15 JP JP2007158664A patent/JP2008308605A/en active Pending
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