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Mechanical pulps

Mechanical pulps Mechanical pulps (refiner pulps and groundwood pulps) typically have high yields, normally 97.5–98.5 % (chemithermomechanical pulps typically about 90 %) from Norway spruce, whereas the yield of chemical pulps is 45–55 %. This simply means that more paper can be produced from a certain quantity of wood (i.e., the cost of wood raw
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This page has been updated 25.05.2021