Title:
TRISAZO-COMPOUND FOR BLACK COLOR, DYE COMPOSITION FOR BLACK COLOR CONTAINING SAME, AND USAGE THEREOF
Document Type and Number:
WIPO Patent Application WO/2015/016015
Kind Code:
A1
Abstract:
Provided is a trisazo compound or salt thereof represented by formula (1) as an excellent azo dye for black color for cellulose fiber material, and paper and pulp in particular, having good dyeing properties and light fastness, and in which an Ames test is negative. Also provided is a dye composition containing the trisazo compound or salt thereof. In formula (1), R1 represents a hydrogen atom, hydroxy group, or sulfonic acid group; and A represents a substituent group represented by the formula (2). In formula (2), R2 represents a hydrogen atom, a hydroxy group, a sulfonic acid group, or a carboxy group.
Inventors:
SASAKI KEIJO (JP)
YAMAMOTO NOBUTAKA (JP)
YAMAMOTO NOBUTAKA (JP)
Application Number:
PCT/JP2014/068156
Publication Date:
February 05, 2015
Filing Date:
July 08, 2014
Export Citation:
Assignee:
NIPPON KAYAKU KK (JP)
International Classes:
C09B33/22; C09B67/22; C09B67/44; D06P1/02; D06P3/60
Foreign References:
| JPH07224238A | 1995-08-22 | |||
| JP2001288379A | 2001-10-16 | |||
| JP2009536240A | 2009-10-08 | |||
| JP2006076908A | 2006-03-23 | |||
| JPH0892494A | 1996-04-09 | |||
| JP2009132794A | 2009-06-18 | |||
| JP2003518141A | 2003-06-03 |
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki (JP)
Right wood Masayuki (JP)
Right wood Masayuki (JP)
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