Silk (To Keep). Silk articles should not be kept folded in white paper, as the chloride of lime used in bleaching the paper will probably impair the colour of the silk. Brown or blue paper is better - the yellowish smooth India paper is best of all. Silk intended for a dress should not be kept in the house long before it is made up, as lying in the folds will have a tendency to impair its durability by causing it to cut or split, particularly if the silk has been thickened by gum. A white satin dress should be pinned up in blue paper, with coarse brown paper outside, sewed together at the edges.