Knit lines in molded parts Liquid plastic (melt) flowing around obstacles in a mold tool, such as inserts, ribs, cores, etc., produces what are called knit and meld lines.

The two main innovations on the booth of Kunststoff Institut Lüdenscheid (KIMW) both offer solutions to remove visible knitlines, phenomena that can be particularly noticeable in high gloss parts.

CHICAGO (Aug. 21, 5:55 p.m. EDT) — Chem-Pak Inc. showcased its patented product that resolves knit and flow lines created during the injection molding of matte finished parts.Knit and flow lines ...