Title:
ジケトピロロピロール顔料組成物、該顔料組成物を用いたカラーフィルタ用組成物およびカラーフィルタ
Document Type and Number:
Japanese Patent JP6919234
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a diketopyrrolopyrrole pigment composition having excellent dispersibility and dispersion stability, causing no crystal deposition of the pigment in a heating process, and suitable for manufacturing a color filter having high lightness and high contrast.SOLUTION: The diketopyrrolopyrrole pigment composition comprises a diketopyrrolopyrrole pigment represented by formula (1), a diketopyrrolopyrrole pigment represented by formula (2), and a diketopyrrolopyrrole pigment represented by general formula (3), in which a mass ratio of the diketopyrrolopyrrole pigment represented by formula (1) to the diketopyrrolopyrrole pigment represented by formula (2) is 70:30 to 20:80. In a powder X-ray diffraction measurement using CuKα line, the diketopyrrolopyrrole pigment composition shows no maximum peak in the diffraction angle (2θ) range from 5 to 12°.SELECTED DRAWING: Figure 1
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Inventors:
Takahata Tokuni
Takaka Kono
Honami Naito
Takaka Kono
Honami Naito
Application Number:
JP2017042292A
Publication Date:
August 18, 2021
Filing Date:
March 07, 2017
Export Citation:
Assignee:
Toyo Ink sc Holdings Co., Ltd.
Toyo Color Co., Ltd.
Toyo Color Co., Ltd.
International Classes:
C09B67/20; C09B57/00; G02B5/20; G03F7/004
Domestic Patent References:
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| JP2012155232A | ||||
| JP2012181378A | ||||
| JP2013182230A | ||||
| JP2015125395A | ||||
| JP2016180042A | ||||
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