| 摘要 |
1. Process of coloration of phanera with natural colorants by means of an aqueous solution or dispersion containing a surfactant, characterised in that it is carried out in two successives stages, of which the first comprises treatment of the phanera with a solution containing at least two non-ionic surfactants of different chemical natures and one or more salts of metals of groups II to V of the periodic classification of the elements, without colorant, whilst the second stage comprises the application to the phanera of a solution or dispersion which contains the natural colorant(s), at least one non-ionic surfactant, one or more non-ionic and/or anionic surfactants, a C1 to C5 alcohol, a glycol or glycerol and a C8 to C22 fatty acid, or glyceride or soap of such a fatty acid. |
