Package preventing foam formation, method of manufacturing such a package, and antifoaming agent

摘要

A package preventing the formation of foam when being filled with liquid aqueous products, is coated on its inside with an antifoaming agent which contains an antifoaming water-insoluble compound encapsulated in urea. In the manufacture of the package, urea and the antifoaming compound are dissolved in a mixture of water and an organic solvent, whereupon the solution is applied to the inside of the packaging material and the solvent is driven off.