Abstract: The process of the invention for the preparation of products, in particular cellulose-containing products (1) and spaces includes the arrangement of at least one flavour and/or fragrance (3) and/or active substance, bound in a solid carrier material, in and/or at the product (1) and/or the direct proximity of the cellulose-containing product (1) and/or the space. Furthermore, means are provided for the preparation of products, in particular cellulose-containing products, and of spaces as described, as well as systems from these means and products, in particular cellulose-containing products.

Abstract: The invention relates to a method for the production of a solid fragrance concentrate, by absorption of a liquid fragrance or fragrance mixture in a solid or solid mixture, using one or several surfactants and/or co-surfactants, solid at normal temperatures as solid or solid mixture, whereby the liquid fragrance or fragrance mixture is dissolved in the above at a temperature above the solidification temperature of the solid or solid mixture and the solution subsequently solidified by cooling. The solid or solid mixture comprises fatty alcohol(s) or a mixture of fatty alcohol(s) and fatty acid(s) and/or fatty alcohol ethoxylate and/or polyethylene glycol.