| 摘要 |
PURPOSE:To continuously form a film, by interposing a cross-linked layer consisting of a water insoluble thermosetting cross-linking agent cross-linked by itself and/or with aqueous resin between powdery particle and an aqueous resin layer, and melt-sticking them by baking. CONSTITUTION:Powdery particles made to a core are dispersed with a water insoluble thermosetting cross-linking agent which is cross-linkable by itself and/or with aqueous resin by condensation and addition reactions. Then after they are emulsified in an aqueous medium by adding the above-mentioned aqueous resin, microcapsulated powder is produced by heating the obtained liquid emulsion at the temp. not less than the cross-linking temp. of the above- mentioned cross-linking agent. The microcapsulated powder has such a structure that the cross-linking layer consisting of the water insoluble thermosetting cross-linking agent which is cross-linkable by itself and/or with aqueous resin by condensation and addition reactions is interposed between powdery particle and the aqueous resin. |
