Ink, inkjet recording method and equipment using the same

Abstract

Abstract PURPOSE:To obtain an ink recording on an uncoated paper and a coated paper by ink-jet recording method, suppressing change of color of recorded image in a room, comprising a specific recording agent and a liquid medium. CONSTITUTION:The objective ink comprising preferably 0.1-15wt.% recording agent shown by formula I [R<1> is lower alkyl, lower alkoxy, -COOM (M is alkali metal or ammonium) or -SO3M; R<2> and R<3> are H, lower alkyl, lower alkoxy, amino, -NHCOCH3, -SO3M or -COOM; R<4> and R<5> are lower alkyl, lower alkoxy, -NHCOCH3, -SO3M or -COOM; A is a group shown by formula II or formula III (R<6> is acetyl or benzoyl; R<9> and R<10> are H, amino, OH or lower alkoxy; n is 1 or 2; m is 0 or 1)] and preferably 2-97.5wt.% liquid medium (preferably mixed solvent of water and water-soluble organic solvent) to dissolve or disperse the recording agent.

Inventors

• 👤 Takao Yamamoto
• 👤 山本　高夫
• 👤 Takeshi Sakaeda
• 👤 栄田　毅
• 👤 Mayumi Yamamoto
• 👤 真由美 山本

Bibliographic Details