This came to me from CAR, and I always wondered about what to do with dirty paper.
C.A.R. GREEN TIP OF THE WEEK: RECYCLING NO-NOS
Here are five things that, according to http://www.earth911.org/ , will contaminate or thwart paper mills' attempts to recycle paper and cardboard:
- Oil and water don't mix. That large pizza box with the oil imprint will become recycled paper with an oil stain.
- Did your napkin or paper towel blot up a water spill or nail polish remover? It could have been the latter, and, for this reason, napkins and paper towels are not recyclable.
- Plastic linings added to paper products; a perfect example is paper cups.
- Wet newspapers.
- Pressure-sensitive adhesives, such as sticky notes, postage stamps, and address labels.