A method for the preparation of microcapsules for self-inking paper, microcapsules, the use of microcapsules

摘要

A method for the preparation of microcapsules for paper and self-inking paper, which is carried out in aqueous solution, wherein the microcapsules have a dye as an ingredient, around which a capsule wall is formed, characterized in that the capsule wall image explosion an adhesion-promoting substance is added, which comprises a fixing agent and a dispersing agent, wherein the fixing agent is selected from ethyleneimine, polyethylene imine and a poly ethylene imine derivative, which is obtainable by crosslinking of polyethyleneimine with polyethylene glycol - to - chlorine hydrin ethers, and the dispersing agent is selected from polycarboxylic acids and poly - acrylate, that the adhesion-promoting substance into the capsule wall is, in copolymerized form, and thus after the preparation of capsules is contained in the capsule wall.