PIGMENT COMPOSITION AND PRINT INK

To provide a yellow pigment composition that is useful and can have sufficient flowability required in an active energy ray-curable off-set printing ink or the like.SOLUTION: A pigment composition contains a dichloro benzidine-based insoluble disazo pigment, a polyoxyethylene alkyl ether with an HLB...

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Bibliographic Details
Main Authors OKADA KYOICHI, HOSAKA MASAKI, KOBAYASHI NAGATOSHI, MORISHITA MIYUKI
Format Patent
LanguageEnglish
Japanese
Published 08.04.2021
Subjects
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
CORRECTING FLUIDS
DYES
FILLING PASTES
INKS
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
USE OF MATERIALS THEREFOR
WOODSTAINS
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Summary:To provide a yellow pigment composition that is useful and can have sufficient flowability required in an active energy ray-curable off-set printing ink or the like.SOLUTION: A pigment composition contains a dichloro benzidine-based insoluble disazo pigment, a polyoxyethylene alkyl ether with an HLB value of 6.0-11.0, and an acrylic resin with a weight average molecular weight of 5000 or more and with an acid value of 200-250. The dichloro benzidine-based insoluble disazo pigment preferably contains C.I. Pigment Yellow 13.SELECTED DRAWING: None 【課題】 本発明が解決しようとする課題は、活性エネルギー線硬化型オフセット印刷用インキなどに求められる十分な流動性をもつことができる有用な黄色顔料組成物を提供することにある。【解決手段】 ジクロロベンジジン系の不溶性ジスアゾ顔料と、ＨＬＢ値６．０〜１１．０であるポリオキシエチレンアルキルエーテルと、重量平均分子量５０００以上且つ酸価２００〜２５０であるアクリル系樹脂と、を含む顔料組成物を提供する。ジクロロベンジジン系の不溶性ジスアゾ顔料は、Ｃ．Ｉ．ピグメントイエロー１３を含むことが好ましい。【選択図】 なし
Bibliography:Application Number: JP20200156223