| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide red compounds which have clarity with a high color phase and color development and is excellent in fastness, including heat and light resistances and its oily or aqueous dye composition.SOLUTION: A xanthene compound can be prepared by causing thionyl chloride to act on C.I.Acid Red 52 of formula (100) to form a sulfonic acid chloride compound and reacting the compound with various types of diaminobenzene derivatives, e.g. 1,4-phenylenediamine.</p> |
