Patent attributes
A method of producing a fiber web, and the fiber web. According to the present method, a fiber material layer is formed from fiber pulp, by using foam forming, which layer is then dried. According to the present invention, at least part of the fiber pulp is mechanical or chemi-mechanical pulp, which is ozonized before the foam forming. By using ozonization, the pulp to be foamed is improved, as regards both fiber bonding and the removal of the wood extractives, during pulp preparation. The manufactured products are suitable, for example, for end uses, where the packages are intended to be light and strong, and the properties of which ensure that the taste and smell of the products are not tainted, such as sales and storage packages for food supplies, chocolate and cigarettes.
