Formulations of carboxylic acid diesters and use thereof for treating materials

Carboxylic acid diesters are employed for treating, in particular for cleaning textile and other materials, and more particularly for removing paint stains from textile fibers to improve the cleaning thereof; the subject formulations contain at least one dicarboxylic acid diester having the formula (I), R1-OOC-A-COO-R2, in which R1 and R2, which may be the same or different, are each a linear or branched, cyclic or non-cyclic C1-C20 alkyl, aryl, alkyaryl, or arylalkyl radical; and the group A is a branched divalent alkylene radical; and including at least one nonionic polyalkoxylated terpene surfactant.