摘要:
A method of producing a fibre web, and the fibre web. According to the present method, a fibre material layer is formed from fibre pulp, by using foam forming, which layer is then dried. According to the present invention, at least part of the fibre pulp is mechanical or chemi-mechanical pulp, which is ozonised before the foam forming. By using ozonisation, the pulp to be foamed is improved, as regards both fibre 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.
摘要:
According to an example aspect of the present invention, there is provided a multilayered fibrous sheet, such as paperboard, having a first layer comprising a first fibrous material, a second layer, spaced apart from the first layer, comprising a second fibrous material, and a third layer between the first and the second layers, comprising a third fibrous material, wherein at least one of the first and the second fibrous materials comprises or consists of a mixture of chemical pulp and mechanical pulp; and the third fibrous material comprises or consists of mechanical pulp.
摘要:
A coated food cardboard that is comprised of a cardboard layer and a coating layer at least on one side of it, and a method of producing it. Between the coating layer and the cardboard surface is formed by dispersion coating a barrier layer that is comprised of binder and slate-like pigments. The layer is formed of a dispersion that is prepared by dispersing slate-like pigment in water and mixing this with a non-hydrophobic binder. The cardboard has excellent barrier properties and it can be used, for example, in such a pigment coated cardboard, in particular fresh fibre cardboard that has good properties of mineral oil migration and fat penetration prevention.
摘要:
According to an example aspect of the present invention, there is provided a packaging (1) comprising a first main panel (2), a first side panel (3), a second main panel (4), and a second side panel (5), defining a box body and being separated from one another by folding lines (6) formed on a flexible material sheet, at least one closure cover for said box, wherein the closure cover includes a tongue (7) projecting from a closure panel (8) in turn projecting from the first main panel (2), the closure panel (8) being separated from the tongue (7) and from the first main panel (2) by folding lines (6), the tongue (7) being configured to be introduced into the box under the second main panel (4), and wherein through the tongue (7) at least one elongated window (9) is provided, a lug (10) projecting from the closure panel (8) and being arranged coplanar with it, a first dust panel (11a) projecting from the first side panel (3) and a second dust panel (11b) projecting from the second side panel (5), wherein each dust panel (11a, 11b) is provided for turning about a folding line (6) and is configured to be arranged under the closure panel (8) of the cover, a first tooth (12a) being arranged coplanar with the first dust panel (11a) and a second tooth being (12b) arranged coplanar with the second dust panel (11b), and wherein the teeth (12a, 12b) are configured to extend through the window (9) and to project from the window (9) as said cover is closed, and wherein the second main panel (4), which is arranged opposite to the first main panel (2), comprises a first preset breakage line (13) for facilitating a separation of a portion of the second main panel (4), and each dust panel (11a, 11b) includes a second preset breakage line (14) along a portion of the respective dust panel (11a, 11b).