Color plastic products manufacture method

The invention relates to a manufacturing method of a color plastic product. Before entering a mold for injection molding, pigments are added into plastic particles, particularly the pigments are paste-shaped; and the paste-shaped pigments are rationed accurately by a color paste metering pump, then...

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Bibliographic Details
Main Author ZHAO JIUYONG
Format Patent
LanguageChinese
English
Published 29.04.2009
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:The invention relates to a manufacturing method of a color plastic product. Before entering a mold for injection molding, pigments are added into plastic particles, particularly the pigments are paste-shaped; and the paste-shaped pigments are rationed accurately by a color paste metering pump, then flow into a screw of an injection molding machine and then are fully blended with the plastic particles in the screw of the injection molding machine. The paste-shaped pigments added by the invention can be fully blended with the plastic particles in the screw of the injection molding machine; therefore, the manufactured plastic product has better color. Besides, the method saves the stirring technique, simplifies the procedures and reduces the cost.
Bibliography:Application Number: CN20081136326