The invention relates to a metallized multilayer sheet material for packaging having a water vapour transmission rate of below 5 g/m.sup.2/day at 38 C. RH:90% comprising: a water vapour permeable sheet substrate, and at least two metallized layers, each covered directly by a solvent based polymeric coating layer,
wherein the cumulated metallized layers have an optical density of at least 2.5 and/or a thickness of at least 15 nm.

The invention relates to a metallized multilayer sheet material for packaging having a water vapour transmission rate of below 5 g/m.sup.2/day at 38 C. RH:90% comprising: a water vapour permeable sheet substrate, and at least two metallized layers, each covered directly by a solvent based polymeric coating layer,
wherein the cumulated metallized layers have an optical density of at least 2.5 and/or a thickness of at least 15 nm.

A vapor deposition paper having barrier properties and excellent recyclability. The vapor deposition paper includes a clay coat layer; an undercoat layer; a vapor deposition layer; an overcoat layer; and a heat seal layer in this order on at least one surface of a paper substrate, in which the vapor deposition layer contains at least one of a metal and ceramic and has a thickness of 1 nm or more and 1000 nm or less, and the pulp recovery rate after re-disintegration of the vapor deposition paper is 80% or more.

A barrier-type paper with a non-barrier paper uses suitable laminating adhesives to form a food packaging material. More specifically, a preferred embodiment of the invention is directed to a metallized or aluminum oxide coated paper sheet laminated to a bleached paper sheet while avoiding optics of a shiny metal material being present by at least one of employing a non-shiny metal for the metallized layer, coating or printing one or more layers upon the metallized layer, and sandwiching the metallized layer in a laminate structure such that the metallized layer is configured to be visually hidden so as to not be optically detectable in a paper recycle line.

The present invention relates to a barrier-coated cellulose-based substrate and to a method of manufacturing such cellulose-based substrates, by dispersion coating of a ductile base layer pre-coating and subsequent dispersion coating of a gas barrier composition and/or vapour deposition coating of a barrier deposition coating.

The present invention relates to a barrier-coated cellulose-based substrate and to a method of manufacturing such cellulose-based substrates, by dispersion coating of a ductile base layer pre-coating and subsequent dispersion coating of a gas barrier composition and/or vapour deposition coating of a barrier deposition coating.

Provided is a gas barrier laminate including: a paper substrate; an anchor coat layer including a first polyolefin having a polar group; a vapor-deposited layer; and an overcoat layer including a second polyolefin having a polar group, in order, in which the gas barrier laminate includes a layer including a polyvinyl alcohol-based resin between the paper substrate and the anchor coat layer or between the anchor coat layer and the vapor-deposited layer.

The present invention relates generally to the field of multi-layer flexible packaging material. In particularly, the present invention relates to a multi-layer flexible packaging material to package dry food, preferably confectionery.

The present invention relates generally to the field of multi-layer flexible packaging material. In particularly, the present invention relates to a multi-layer flexible packaging material to package dry food, preferably confectionery.

The present invention is directed to a process for manufacturing a nano-coated pulp-based substrate comprising the steps of: a) providing a suspension comprising pulp, said pulp having Schopper Riegler value of at least 70; b) using the suspension of step a) to form a wet web; c) dewatering and/or drying the wet web to form a substrate; d) adding a first layer of an acrylic monomer solution comprising less than 2 wt-% water to the surface of the substrate, followed by radiation curing the first layer; e) optionally adding a second layer comprising an acrylic monomer solution to the surface of the cured first layer and radiation curing the second layer; f) providing a nano-coating on the surface of the cured first or second layer such that a nano-coating having a thickness in the range of from 0.1 nm to 100 nm is provided on the substrate.