Subject:
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Re: Color Change - Final Update
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Newsgroups:
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lugnet.general
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Date:
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Thu, 6 May 2004 16:12:19 GMT
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Viewed:
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9187 times
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In lugnet.general, Jan-Albert van Ree wrote:
> Wow....
> I've been an intern for 4 months at a Dutch injection moulding company but I
> never knew it was possible, apart from the black (as has been done for
> years with car bumpers and such)
>
> But unless you do this in HUGE quantities, how can you guarantee exact
> colors such as with LEGO with each batch?
That's part of the problem. You do get much greater accuracy as you increase
the size of the batch. It's also probably a lot easier to do with sheet
extrusion than with injection molding, where you have a constant flow of a large
amount of material, rather than a rapid start/stop with small quantities in each
spurt. Of course, most extrusion plants won't even touch post-consumer regrind
unless it's in batches of half a ton or more, if they're the ones who have to
regrind the scrap and/or (in the case of hygroscopic plastics) dessicate it.
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Message is in Reply To:
 | | Re: Color Change - Final Update
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| (...) Wow.... I've been an intern for 4 months at a Dutch injection moulding company but I never knew it was possible, apart from the black (as has been done for years with car bumpers and such) But unless you do this in HUGE quantities, how can you (...) (20 years ago, 6-May-04, to lugnet.general, lugnet.lego)
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