Abstract: A new substituted metaaminophenol of formula (I): ##STR1## wherein Z represents a monohydroxylated or polyhydroxylated hydrocarbon radical of 1 to 6 carbon atoms or an aminoalkyl radical of the formula: ##STR2## wherein n is an integer from 1 to 6 and R.sub.1 and R.sub.2, which are identical or different, represent a hydrogen atom or an alkyl or hydroxyalkyl radical of 1 to 6 carbom atoms or an acyl radical of 1 to 4 carbon atoms, and R represents a hydrogen atom, an alkyl radical or monohydroxyalkyl or polyhydroxyalkyl, monocarbamylalkyl, dicarbamylalkyl, aminoalkyl, acyl, carbalkoxy, carbamyl or monoalkylcarbamyl radical, the abovementioned alkyl radicals containing 1 to 6 carbon atoms, or an acid salt thereof with the proviso that if R represents a hydrogen atom, Z cannot represent --CH.sub.2 CH.sub.2 OH is disclosed, together with a process for their preparation, hair-dyeing compositions containing them and a hair-dyeing process.

Abstract: A packaging means is formed in two parts which can be assembled. The first part is constituted by two compartments comprising a first compartment or container, and a second compartment or cap surmounting the first, these two compartments being separated from each other by two diaphgrams. An intermediate part of the first part joins the two compartments. The two diaphragms are fixed to the cap which is closed at its upper portion by a stopper. The second part of this packaging means is constituted by a perforator cap capable of perforating the diaphragms when it is placed in position on the second compartment.The packaging means of this type is particularly convenient for the preservation of two products independently of each other before they are mixed for use.

Abstract: A drop dispenser for liquid or pasty substances such as beauty creams has a bottle and a stoppering device in which the stoppering device includes a piston spring biased to resist depression of the piston to dispense the contents of the bottle drop-by-drop.

Abstract: A make-up brush comprises an injection moulded frusto-conical support having integral bristles with enlarged ends. The bristles in certain rows have hooked ends directed towards an extension of the support (to engage a handle) and the bristles in other rows have hooked ends directed away from the extension.The brush support is moulded using a segmented cavity die which has recesses defining the integral bristles.