Patent ID: 6591585
Filing Date: 2003-07-15
Classification: A61J,B24C,B29C,B29K,B65B,Y10S

Abstract:
A method for making capsules, said method comprising steps ofguiding two material webs through a gap formed between two counter-rotating rollers, at least one of said rollers having a surface with a plurality of depressions formed therein and a plurality of ledges projecting from said surface, each of said depressions being surrounded by one of said ledges, injecting a metered filling material between said webs such that said filling material and said web are pressed into said depressions, welding said webs together around said filling material to form molded bodies containing said filling material, wherein each of said ledges has an arithmetical mean roughness, according to DIN 4760-65, of 1.0 &mgr;m to 2.0 &mgr;m, and 150 to 250 peaks per cm, to prevent the sheets from slipping between the rollers during injection of filler material.