Concentrated acid red 151 dye-surfactant solution of 15 to 25

摘要

An improved aqueous-organic solvent solution, having a pH between 10 and 13, of the disazo dyePPWHEREIN X is a cation, preferably the sodium or lithium cation, the improvement comprising the presence, in combination, ofPPI. 0.1% TO 10%, BY TOTAL WEIGHT, OF A PARTICULAR ANIONIC SURFACTANT, ANDP PII. 0.1% TO 3.0%, BY TOTAL WEIGHT, OF A PARTICULAR NONIONIC SURFACTANT.