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Author
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Topic: Profiles from our PP recycled waste?
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bill
Member Posts: 2
From:NC USA
Registered: Apr 2003
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posted April 15, 2003 09:37 AM
   
We are currently producing polypropylene fiber and are interested in extruding profiles from our recycled waste. What are the applications for extruded PP profiles?IP: Logged |
malcolm
Senior Member Posts: 7
From:kuwait
Registered: Sep 2002
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posted April 21, 2003 06:32 AM
Dear Bill,We too produce pp yarn and I have been trying to get someone to advise me on how to go about on recycling this waste yarn. But have had no luck so far. Please let me know if you come across anything. Best regards
Malcolm
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Tom C
Moderator Posts: 125
From:Wharton, NJ, USA
Registered: Jun 2001
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posted April 21, 2003 06:48 AM
What is the melt flow of the PP yarn? This information can help determione what can be done with it. However, the cost of conversion may be greater than the value of virgin PP, and that is probably why there is no interest in the material.Tom C
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Tom C
Moderator Posts: 125
From:Wharton, NJ, USA
Registered: Jun 2001
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posted April 21, 2003 08:37 PM
The problem with inexpensive polymers is that the cost of converting rework and recycle is often more expensive than purchasing virgin.If you can buy compacting equipment and recover the material back into your own process, that might be the most economical solution. Let me know if you need information on compacting equipment. Sorry I'm not a profile guy. Tom C IP: Logged |
Bob Cunningham
Senior Member Posts: 38
From:Amesbury, Mass
Registered: Nov 2002
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posted April 22, 2003 07:59 AM
Repelletizing PP yarn can be done no problem (as long as you don't mind the colored pellets). I've recently seen Erema's COAX machine handle this stuff like gravy. An extremely slick process- Malcolm if you've never seen it, I would give them a call and try to get some more information. Typically a payback is only a few years, I'm sure Erema could help you calculate that. See http://www.erema.at/index.php?seite=185&lg=2 for a press release on their COAX for PP yarn, or contact them at www.erema.net .Bill asked what profiles could be made from PP, which I imagine there are several (I'm not up on the big profile markets either). But what is wrong with recycling back into your process? A reduction in raw materials cost is usually a good thing. -Bob Cunningham IP: Logged |
bill
Member Posts: 2
From:NC USA
Registered: Apr 2003
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posted April 22, 2003 08:16 AM
Bob,
We currently repelletize all colored waste yarn into black pellets and reprocess into yarn but we have excess that we are interested in extruding into profiles.Any suggestions? Thanks,
Bill IP: Logged |
malcolm
Senior Member Posts: 7
From:kuwait
Registered: Sep 2002
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posted April 27, 2003 07:36 AM
Sorry people, I did not get to your replies earlier. The melt flow rate for pp yarn as far as my knowledge goes is between 12 to 30.
Our pp has an melt flow index of 25.
Thanks Bob for the link’s to the erema web site, which I will check out.
Till then bye and thanks to you all
Malcolm
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