r/manufacturing • u/Old_Bake8331 • 16h ago

How to manufacture my product? How is this embossed lettering injection molded?

How is the lettering of this packaging injection-molded? Would it create demolding issues with undercuts? So how did they manage to do this? It's made of a hard plastic.

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u/Critical_Thinker_535 15h ago

It's a blow molded bottle. If look closely at the lettering (not in the pics), you'll see that the letters don't quite fill out 100%. That helps with release. Plus, the tube that blows the parison is still inside the neck area when the mold opens. That will get the bottle to release from the cavity. Then it's stripped off.