Title:
COLORING MATTER CONSISTING OF TRISAZO COMPOUND, INK COMPOSITIONS, RECORDING METHOD, AND COLORED BODY
Document Type and Number:
WIPO Patent Application WO/2010/143610
Kind Code:
A1
Abstract:
Provided are a coloring matter for black ink which is highly soluble in water-based media, and ink compositions containing the same. A high-concentration aqueous solution and ink that contain the coloring matter are stable even when have been stored for a long period, and can produce printed images having extremely high density. Even when printing is conducted using the high-concentration aqueous solution, no bronzing occurs in the resulting printed images. The ink compositions can produce black recorded images which exhibit various excellent fastnesses, particularly excellent light fastness and ozone gas fastness. The coloring matter consists of at least one substance selected from among trisazo compounds represented by general formula (1), tautomers thereof, and salts of both. In general formula (1), R1 is unsubstituted C1-4 alkyl or the like; R2 is cyano or the like; R3 is a chlorine atom or the like; R5 to R7 are a hydrogen atom, unsubstituted C1-4 alkyl, sulfo-substituted C1-4 alkoxy, or the like; R8 to R10 are a hydrogen atom, unsubstituted C1-4 alkyl, sulfo-substituted C1-4 alkylthio, or the like; A is sulfo-substituted 2-naphthothiazolyl or the like; and a to d represent the positions at which the ring is substituted with R3 and sulfo.
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Inventors:
YOSHIMOTO, Takashi (31-12 Shimo 3-chome, Kita-k, Tokyo 88, 〒1158588, JP)
吉本 隆志 (〒88 東京都北区志茂３－３１－１２ 日本化薬株式会社 機能化学品研究所内 Tokyo, 〒1158588, JP)
吉本 隆志 (〒88 東京都北区志茂３－３１－１２ 日本化薬株式会社 機能化学品研究所内 Tokyo, 〒1158588, JP)
Application Number:
JP2010/059632
Publication Date:
December 16, 2010
Filing Date:
June 07, 2010
Export Citation:
Assignee:
NIPPON KAYAKU KABUSHIKI KAISHA (11-2, Fujimi 1-chome Chiyoda-k, Tokyo 72, 〒1028172, JP)
日本化薬株式会社 (〒72 東京都千代田区富士見一丁目１１番２号 Tokyo, 〒1028172, JP)
YOSHIMOTO, Takashi (31-12 Shimo 3-chome, Kita-k, Tokyo 88, 〒1158588, JP)
日本化薬株式会社 (〒72 東京都千代田区富士見一丁目１１番２号 Tokyo, 〒1028172, JP)
YOSHIMOTO, Takashi (31-12 Shimo 3-chome, Kita-k, Tokyo 88, 〒1158588, JP)
International Classes:
C09B31/28; B41J2/01; B41M5/00; B41M5/50; B41M5/52; C09B67/20; C09B67/44; C09D11/00; D06P1/04; D06P1/39; D06P3/00; D06P5/00
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki (Takase Bldg, 25-8 Higashi-ikebukuro 1-chome, Toshima-k, Tokyo 13, 〒1700013, JP)
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