FIELD: paper production; cellulose production.
SUBSTANCE: invention relates to a fibre web material and a process for preparation thereof. In the method, a fibre material layer is formed from fibre pulp using foam forming, which layer is then dried. At least part of the fibre pulp is mechanical or chemical-mechanical pulp, which is ozonised before the foam forming.
EFFECT: increasing specific volume of the fibrous product while maintaining its strength.
20 cl, 2 dwg
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