PROCESS FOR ENCAPSULATING CHEMICALLY ACTIVE SUBSTANCES AND ENCAPSULATED PRODUCT

摘要

The present invention relates to an encapsulated system which comprises a core containing the active material and a coating layer formed by a water-soluble or hydrophilic material, and to its preparation process (Fig.1 ). According to an embodiment of the invention, the process for preparation of chemically active substances, comprises the steps of partial or total elimination of crystallization water from the active substance (1 ) - (3); preparation of the encapsulating material solution (8) with the equivalent of the crystallization water quantity required to achieve the desired hydration degree for the encapsulated substance; mixing of the active substance partially hydrated, of under anhydrous form, with the coating solution (7); and coating of the active substance (11) by the rehydration of the said substance (14) with the water from the liquid coating composition and simultaneous solidification of the coating material on the active substance.