Dye dispersion liquid

Dye dispersion liquid

  • CN 104,513,498 B
  • Filed: 09/30/2014
  • Issued: 01/17/2020
  • Est. Priority Date: 10/03/2013
  • Status: Active Grant
First Claim
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1. A dye dispersion liquid in which a dye is dispersed in a solvent by a dispersant, wherein,the dye comprises a coumarin dye, and substantially no pigment,the dispersant is an acrylic polymer dispersant, the amine value of the dispersant is 0 to 80mgKOH/g,wherein the coumarin dye comprises a compound represented by formula (4a-148) and a compound represented by formula (C-PT'"'"'),wherein the content of the coumarin dye is 40% by mass or more and 100% by mass or less with respect to the total amount of the dye, and wherein the compound represented by the formula (C-PT'"'"') is a neutralized product of a compound represented by the formula (C-PT),

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