Coated paper
AssigneeKoehler Innovation & Technology GmbH
InventorsAljoscha Föll, Claus Jurisch, Christian Kind, Marius Schulte, Thomas Serrer, Andrew Vogt
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Abstract
The present invention relates to a coated paper comprising a base paper and a barrier layer applied thereto, the barrier layer comprising at least one polymer, the polymer comprising an at least partly saponified polyvinyl alcohol and/or an at least partly saponified polyvinyl alcohol copolymer, each of which has an onset temperature of less than 210° C. determined by DSC.
Claims18
Packaging comprising a coated paper for packaging food stuffs, wherein the coated paper comprising a base paper and a barrier layer applied thereto, the barrier layer comprising at least one polymer, characterised in that the polymer comprises an at least partly saponified polyvinyl alcohol and/or an at least partly saponified polyvinyl alcohol copolymer, each of which has an onset temperature of less than 210° C. determined by DSC, the onset temperature being defined by DSC according to DIN EN ISO 11357-1:2010-03 as the point of intersection of the extrapolated baseline and the inflection tangent at the beginning of the melting or crystallisation peak, wherein a precoat comprising at least one inorganic pigment and a polymeric binder is present between the base paper and the barrier layer, wherein the inorganic pigment is in the form of platelets selected from the group of talc, precipitated calcium carbonate, silicate, phyllosilicate and kaolin, and/or the polymeric binder comprises a polymeric binder selected from the group of acrylate-based binder, styrene/butadiene-based binder, starch-based binder, modified starch, dispersion of cross-linked starch, biolatex, and polymer-starch hybrid latices, and wherein the at least partly saponified polyvinyl alcohol and/or the at least partly saponified polyvinyl alcohol copolymer has a degree of saponification of from 30% to 100%.
Packaging comprising a coated paper for packaging food stuffs, wherein the coated paper comprising a base paper and a barrier layer applied thereto, the barrier layer comprising primarily one polymer, characterised in that the one polymer comprises an at least partly saponified polyvinyl alcohol and/or an at least partly saponified polyvinyl alcohol copolymer, each of which has an onset temperature of less than 210° C. determined by DSC, the onset temperature being defined by DSC according to DIN EN ISO 11357-1:2010-03 as the point of intersection of the extrapolated baseline and the inflection tangent at the beginning of the melting or crystallisation peak, wherein a precoat comprising at least one inorganic pigment and a polymeric binder is present between the base paper and the barrier layer, wherein the inorganic pigment is in the form of platelets selected from the group of talc, precipitated calcium carbonate, silicate, phyllosilicate and kaolin, and/or the polymeric binder comprises a polymeric binder selected from the group of acrylate-based binder, styrene/butadiene-based binder, starch-based binder, modified starch, dispersion of cross-linked starch, biolatex, and polymer-starch hybrid latices, and wherein the at least partly saponified polyvinyl alcohol and/or the at least partly saponified polyvinyl alcohol copolymer has a degree of saponification of from 30% to 100%.
Dependencies are inferred from the claim text.