Greener and greener
Question: When waste paper is recycled the new product is clearly of a poorer
quality than the original paper. Is there a further deterioration if recycled
paper is itself recycled?
Can papers recycled several times be separated from nonrecycled waste paper?
And is there a limit to the number of cycles that constituent materials can go
through?
Answer: Paper-making fibres, which usually originate from wood pulp, can be
used about six times. Each time they are used the fibres deteriorate—they
wear down and become shorter. Because of this it is necessary to add virgin
fibres to…
