| 摘要 |
PURPOSE:To obtain a thermal recording method and a recording material superior in shelf stability and high-speed recording properties by developing a new- type electron accepting color developer. CONSTITUTION:A electron accepting color developer made of a compound having hydroxyl group as alpha-position carbon adjacent to carbonyl group. A thermal recording method including a process in which a color former is reacted with said color developer. The color developer compound includes a carboxylic acid, ester, or amide having hydroxyl group at alpha-position. |
