Method and device for producing shaped bodies, especially capsules, from a biopolymer material containing starch
OwnerAlois Peter, Valentin Lutz +1inventors
InventorsAlois Peter, Valentin Lutz, Rico Menard
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Abstract
A device for producing shaped bodies comprising at least one extrusion tool (1) for extruding an endless strip of material (15) and at least one form tool (2) used to process the material strip in order to form shaped bodies, especially capsules, in addition to a treatment station (3) which is used to impinge upon the material strip with heat. According to the invention, the material strip undergoes heat treatment at least once between the extrusion tool and the form tool in order to relieve stress.
Claims14
A method for producing shaped bodies, especially capsules, from a biopolymer material containing starch, in which at least one endless material strip (15) is extruded from an extrusion tool (13) under pressure and at a temperature of over 50° C. and processed in a forming tool (2) with the inclusion of a filling material at a plastifying temperature to form shaped bodies (11), the material strip being subjected to at least one heat treatment, preferably on both sides, at a treatment station (3) between the extrusion tool and the forming tool in order to relieve stresses.
A device for producing shaped bodies, especially capsules, from a biopolymer material containing starch, with at least one extrusion tool (13) for extruding an endless material strip (15) under pressure and at a temperature of over 50° C. and with at least one forming tool (12) for processing the material strip with the inclusion of a filling material to form shaped bodies (11), at least one treatment station (3) for exposing the material strip to heat, preferably on both sides, being arranged between the extrusion tool and the forming tool in order to relieve stresses.
Dependencies are inferred from the claim text.