Kit and method for staining keratin materials with amino silicone and colouring compound

The object of the present invention is a multi-component packaging unit (cartridge) for dyeing keratin materials, in particular human hair, comprising, prepared separately:-a first container comprising a medicament (a), where the medicament (a) comprises: (a1) at least one amino-functionalized silicone polymer, and-a second container comprising a medicament (b), where the medicament (b) comprises: (b1) water, where the at least one amino-functionalized silicone polymer is at least one amino-functionalized silicone polymer, and the at least one amino-functionalized silicone polymer is at least one amino-functionalized silicone polymer, where the at least one amino-functionalized silicone polymer is at least one amino-functionalized silicone polymer, and where the at least one amino-functionalized silicone polymer is at least one amino-functionalized silicone polymer. And (b2) a buffer system comprising at least one inorganic or organic acid (b2-I) and at least one salt of said acid (b2-II), and (b3) at least o