Apparatus for impregnating or dispersing a product in a thin substrate

摘要: A method of dispersing a substance in thin flexible substrate open-celled foam structure comprising continuously moving sheet the substrate, applying to melted condition at an elevated temperature, compressing subsequently allowing expand its normal size and thereby draw into impregnate cooling solidify impregnated substance. The is preferably carried out using apparatus incorporating means for controlling quantity applied by applicator roller arranged permit while still contact with roller.