According to the present invention, there is provided a cleaning agent composition for a semiconductor device substrate including at least one of wiring and an electrode in which the wiring and the electrode contain cobalt or a cobalt alloy, the cleaning agent composition including a component (A): at least one compound selected from the group consisting of specific compounds; and a component (B): water.

A colorant catcher material includes a) a substrate and b) a colorant-catching additive. The colorant-catching additive is selected from the group consisting of polyvinylamines in form of homopolymers, copolymers and/or partial salts thereof, polyethylenimines in form of homopolymers, copolymers and/or partial salts thereof, and mixture thereof. The colorant-catching additive is fixed on the substrate by c) a fixing agent selected from the group consisting of dialdehydes with the carbon number of from 2 to 8. Also disclosed is a method for preparing the colorant catcher material and use of the same for catching colorants or removing dirt in an aqueous medium, particularly a laundry washing solution.

According to the present invention, there is provided a cleaning agent composition for a semiconductor device substrate including at least one of wiring and an electrode in which the wiring and the electrode contain cobalt or a cobalt alloy, the cleaning agent composition including a component (A): at least one compound selected from the group consisting of specific compounds; and a component (B): water.

A metal residue removing liquid including a mixed solvent containing a first organic solvent and a second organic solvent, a salt of a base containing no metal ions and hydrofluoric acid, and water, in which the first organic solvent is diethylformamide, and the mixed solvent has a value of 0.6 or more, which is obtained by subtracting a hydrogen bond term of a Hansen solubility parameter from a polar term of the Hansen solubility parameter.

The present invention relates to the use of a composition comprising specific a-amino-ketones, H.sub.2O.sub.2, a H.sub.2O.sub.2 precursor or a peracid and optionally an activator as a bleaching mixture for textile materials or dishes either manually or in an automatic washing machine or dish washer. Further aspects of the invention are the composition comprising specific a-aminoketones and H.sub.2O.sub.2, a H.sub.2O.sub.2 precursor or a peracid and a process for bleaching of stains or of soiling on textile materials or dishes in the context of a washing process either manually or in an automatic washing machine or dish washer. Also aspects of the invention are detergent formulations comprising such a composition and novel compounds.