КАРТОН, СОДЕРЖАЩИЙ ГИДРОТАЛЬКИТ

摘要

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.