Patent ID: 11919213
Assignee: ZAHORANSKY FORMENBAU GMBH
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. A method for producing injection-molded parts, which have at least one use area with a bristle region, by a two-component injection-molding technique comprising:
injecting a first material component into a mold cavity of a mold comprising a wall at a first gating point;
injecting a second material component into the mold cavity at a second gating point and displacing the first material into peripheral regions of the mold cavity with the second material component;
wherein, the first material component is softer than the second material component and is acted upon by the second material component and is displaced in a direction of regions of the mold to be filled with the first material component, the first material component being displaced into regions of the mold at the wall; and
wherein the second material component is introduced at least in certain regions as a core material into the regions of the mold to be filled with the first material and completely into other regions of the mold, and the second material component partially penetrates into the bristle region,
wherein the regions of the mold to be filled with the first material component have a helical or spiral contour.