A heat treated package formed from fibre based packaging...

D - Textiles – Paper – 21 – H

Patent

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Details

D21H 27/10 (2006.01) B65D 65/42 (2006.01)

Patent

CA 2530792

The invention relates to a package intended for thermal treatment comprising a fibre-based packaging material treated with a hydrophobic size and comprising one or more layers for reduced water penetration outside and/or inside the fibre substrate. The package of the invention is characterised by the fibre substrate being treated with a combination of a wet-strength size, a hydrophobic size and an aluminium and/or calcium compound for increased heat resistance of the packaging material, and in that the ratio of hydrophobic size to the aluminium and/or calcium compound is 1:1-1:10.

La présente invention concerne un emballage qui est conçu pour être soumis à un traitement thermique et qui comprend une matière d'emballage à base de fibres, traitée avec un apprêt hydrophobe et comprenant une ou plusieurs couches qui permettent de réduire la pénétration d'eau à l'extérieur et/ou à l'intérieur du substrat de fibres. Cet emballage est caractérisé par le substrat de fibres qui est traité avec une combinaison formée par un apprêt résistant à l'état humide, un apprêt hydrophobe et un composé d'aluminium et/ou de calcium pour augmenter la résistance à la chaleur de la matière d'emballage et est caractérisé en ce que le rapport d'apprêt hydrophobe sur le composé d'aluminium et/ou de calcium s'élève de 1:1 à 1:10.

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