D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 17/68 (2006.01)
Patent
CA 2566730
The invention relates to a process for producing board which comprises providing an aqueous suspension comprising cellulosic fibres; adding hydrotalcite to the suspension; dewatering the obtained suspension to provide a (i) single ply board; or (ii) a ply comprising cellulosic fibres and hydrotalcite, and attaching said ply to one or more plies comprising cellulosic fibres to provide a multi ply board comprising two or more plies. The invention further relates to board comprising one or more plies containing cellulosic fibres, wherein the board further comprises hydrotalcite distributed throughout at least one of said one or more plies. The invention also relates to a method for producing a packaging material, a packaging material per se and uses of the packaging material comprising board comprising one or more plies containing cellulosic fibres and hydrotalcite. The invention also relates to a procedure of making a package and the package per se which package comprises board comprising one or more plies containing cellulosic fibres and hydrotalcite.
L'invention concerne un procédé de production d'un carton consistant à obtenir une suspension aqueuse comprenant des fibres cellulosiques, à ajouter de l'hydrotalcite à cette suspension, à déshydrater la suspension obtenue pour obtenir (i) un carton à jet unique ou (ii) un jet comprenant des fibres cellulosiques et de l'hydrotalcite, puis à fixer ce jet à un ou plusieurs jets comprenant des fibres cellulosiques pour obtenir un carton à jets multiples contenant au moins deux jets. L'invention concerne en outre un carton comprenant au moins un jet contenant des fibres cellulosiques, ce carton comprenant également de l'hydrotalcite réparti à travers au moins l'un des jets. L'invention concerne encore un procédé de production d'un matériau d'emballage, un matériau d'emballage per se ainsi que des utilisations de ce matériau d'emballage comprenant un carton comportant un ou plusieurs jets contenant des fibres cellulosiques et de l'hydrotalcite. L'invention concerne enfin un procédé de fabrication d'un emballage et cet emballage per se, lequel comprend un carton comprenant un ou plusieurs jets contenant des fibres cellulosiques et de l'hydrotalcite.
Lindgren Erik
Nilsson Jerker
Sanne Erik
Tokarz Marek
Akzo Nobel N.v.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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