Method and apparatus for making a multi-colored injection-molded product
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United States of America Patent
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Jul 17, 2001
Grant Date -
N/A
app pub date -
Sep 26, 1997
filing date -
Sep 26, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for making a multi-colored, injection molded product. A nozzle which has at least two separate feed passageways receives the primary resin stream from the primary feed tube. Two separate fluid-operated cylinders add different colorant masses to the separate portions of the feed stream through lateral openings into the two passageways. Blending of the two different masses is prevented in the nozzle and blending with the primary resin stream is minimized during feed to the mold to optimize the brightness of the colors in the end product.
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