Heat-sealed and disinfected product packaging

The name of the package for heat-sealing and disinfecting products, the packaging material used for the package and the use of the packaging material Patent applicant Stora Enso Principal Applicant Address Helsinki, Finland Inventor Tappan Pentnan; Kimo Nivalanan; Isto Hishkanan; Anti-Savoyenan; Jurka Kusipalo; Eissa Korisallo; Eki Leho; Marcus Sai Neo; Tommy Lechkoinan Application (patent) No. 200480004428.8 Date of application 2004.02.23 Award date Approval Notice No. 1750976 Audit announcement date 2006.03.22 Manual CD-ROM D0612-1 Main classification number B65D65/40(2006.01)I Classification No. B65D65/40(2006.01)I;B32B27/20(2006.01)I;B32B27/10(2006.01)I;B65D81/34(2006.01)I;B65D81/24(2006.01)N;B65D81/30(2006.01)N points Original Application No. Priority 2003.2.21 FI 20030260; 2003.5.22 FI 20030773 Abstract The present invention relates to a polymer coated heat-sealable packaging material, to a heat-sterilized package made of the material, and to the use of the packaging material. . The material comprises a fibrous substrate 4, which is, for example, a packaging sheet made from bleached pulp, and a polymer heat seal layer (1, 9) located on both sides of the fibrous substrate. According to the invention, the package comprises: a polymer coating (2) located outside the fibrous substrate, the polymer coating comprising a white pigment covering the fibrous substrate from view, and a second coating containing a light absorbing pigment (8). A coating that is colored gray inside the fiber substrate, for example, provides a light-shielding layer for the packaged product. In order to stabilize the brightness of the material, it is also possible to provide a light-absorbing black pigment on the outside of the fiber substrate below the white layer. The package can be, for example, a food package that is thermally sterilized in an autoclave, wherein the fiber-based material can be prevented from yellowing by means of a white pigment. Sovereignty Item 1. A heat-sealable and heat-sterilized product package made of a polymer-coated fiber-based packaging material, characterized in that the polymer coating on the outside of the fiber substrate in the package contains a white pigment, and The second polymeric coating included in the packaging material contains a light absorbing pigment. International Application 2004-02-23 PCT/FI2004/000084 International Publication 2004-09-02 WO2004/074130 English