Subject:
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Re: Color Change - Final Update
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Newsgroups:
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lugnet.general, lugnet.lego
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Date:
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Thu, 6 May 2004 04:25:09 GMT
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Viewed:
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10199 times
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What colors do you grind up and mix to get Purple Dave?
:D
"Purple Dave" <purpledave@maskofdestiny.com> wrote in message
news:Hx9uMx.15LG@lugnet.com...
> In lugnet.general, Jan-Albert van Ree wrote:
> > You can't simply "mix" ABS like that.
>
> Yes you can. It's done all the time. Any color of ABS can be easily • recycled
> into black, because the carbon used to color it will overpower any other • dyes.
> Other colors are entirely dependant upon what you want to recycle them • into.
> You can't recycle blue into red, but you can recycle many shades of red • and/or
> yellow into many shades of orange. The key is that you need to know • exactly
> what color you're starting with, how much you've got of that color, and • exactly
> which color you're going to produce (and you need to know that anyways). • Once
> you know all of that, you can figure out what color/quantity you need to • mix
> into the off-color to make it look like the color you want. We've spent • quite a
> while discussing the merits of having FDA White ABS reground into OSHA • Yellow or
> black, because you can't regrind any post-consumer plastic into • FDA-approved
> plastic, and we don't use any non-FDA white plastic.
>
> > The colors will never blend 100% and you'll get swirling patterns such • as
> > McDonalds "Flurry" icecreams :)
>
> As long as your regrind chunks and new pellets are thoroughly mixed by the • time
> they're dumped in the hopper, everything between that point and the output • point
> should provide more than enough opportunity for a true color to come out • the
> other end.
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Message has 1 Reply:
 | | Re: Color Change - Final Update
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| (...) I'm actually quite partial to the standard LEGO purple, though I've noticed that the Throwbot limbs aren't the same shade as all of the other pieces, and they've used three slightly different shades of purple rubber (two shades for purple (...) (20 years ago, 6-May-04, to lugnet.general, lugnet.lego)
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Message is in Reply To:
| | Re: Color Change - Final Update
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| (...) Yes you can. It's done all the time. Any color of ABS can be easily recycled into black, because the carbon used to color it will overpower any other dyes. Other colors are entirely dependant upon what you want to recycle them into. You can't (...) (20 years ago, 6-May-04, to lugnet.general, lugnet.lego)
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