Packaging material with barrier properties

    公开(公告)号:SE1751391A1

    公开(公告)日:2019-05-11

    申请号:SE1751391

    申请日:2017-11-10

    Applicant: STORA ENSO OYJ

    Abstract: The present invention is directed to a packaging material, more specifically a packaging material having gas and/or moisture barrier properties, wherein the material comprises a barrier material comprising a layer comprising at least 50% of a zinc ionomer, a layer of polyethylene and a layer that forms a gas barrier. The invention is also directed to packaging products using said barrier material. Such products are in particular packages suitable for cosmetics and personal care products.

    CONTAINER WITH OLEOPHILIC/OLEOPHOBIC PATTERN ON A SEALING SURFACE

    公开(公告)号:CA2988527A1

    公开(公告)日:2016-12-22

    申请号:CA2988527

    申请日:2016-06-16

    Applicant: STORA ENSO OYJ

    Abstract: The disclosure relates to a container (10) comprising a sealing surface (15), wherein the sealing surface (15) is provided with a pattern (30) of ridges (31, 32) and valleys (33), and wherein the sealing surface (15) has a) oleophobic and/or b) oleophilic properties : a) repelling fat such that any fat on the sealing surface (15) has a tendency not to stick to the pattern (30) on the sealing surface thus creating an essentially fat-free sealing surface or b) attracting fat such that any fat on the sealing surface (15) has a tendency to settle down in the valleys (33) of the pattern (30) on the sealing surface, respectively.

    A method for manufacturing a packaging material

    公开(公告)号:AU2015220443A1

    公开(公告)日:2016-07-07

    申请号:AU2015220443

    申请日:2015-02-19

    Applicant: STORA ENSO OYJ

    Abstract: The invention relates to a polymer-coated packaging material, a method of manufacturing the same, and products, such as a disposable drinking cup, made from the material. The packaging material comprises a fibrous base (1) of paper or board and an extruded polymer layer (2) containing a blend of (i) 0 to 25 wt-% of a branched low-density polyethylene (LDPE)with a lower melt viscosity and (ii) 75 to 90 wt-% of a linear low-density polyethylene (LLDPE) with a higher melt viscosity. The packaging material of the invention comprises multilayer coatings, e.g.an adhesive innermost and a heat-sealable outermost layer (2, 4) of said blend and a vapour barrier middle layer (3) of at most 90 wt- % of high density polyethylene (HDPE). The layers (2, 3, 4) are brought and adhered to the fibrous base (1) by coextrusion. To maximize renewability of the materials HDPE and LLDPE as used for the structure are of biologic origin.

    A METHOD OF PRODUCING A HEAT-RESISTENT POLYMER-COATED OVEN BOARD, AN OVEN BOARD OBTAINABLE BY THE METHOD, A FOOD TRAY AND A FOOD PACKAGE

    公开(公告)号:CA2943601A1

    公开(公告)日:2015-10-22

    申请号:CA2943601

    申请日:2015-04-14

    Applicant: STORA ENSO OYJ

    Abstract: The invention covers a method of producing a heat- resistant polymer-coated oven board, the resulting oven board, a food tray and a food package, which comprise such board and withstand heating in a range or microwave oven. According to the invention the coated oven board (1 ) is made by adhering a premade heat-resisting film (4) comprising polyethylene terephthalate (PET) or its derivate, such as glycol-modified PET known as PETG, to a board base (2) by extrusion lamination, in which an adhesive layer (3) comprising polyamide (PA) is extruded between the heat-resisting film and the board base. To improve the strength and barrier properties, the film (4) may be an extruded multilayer film and/or the film may be stretch-orientated to bring about crystallization in PET.

    A heat-sealable biodegradable packaging material, a package or a container made thereof, and use of a resin in extrusion coating

    公开(公告)号:AU2012282429A1

    公开(公告)日:2014-01-23

    申请号:AU2012282429

    申请日:2012-06-20

    Applicant: STORA ENSO OYJ

    Abstract: The invention concerns a heat-sealable biodegradable packaging material, which comprises a fibrous substrate (1) and one or more polymer coating layers (2) extruded onto said substrate. According to the invention the packaging material includes at least one polymer coating layer (2) containing at least 70 weight-% of polylactide (PLA) and at least 5 weight-% of polybutylene succinate (PBS) or its derivate blended therewith. Optionally an acryl copolymer such as ethylene butyl acrylate glycidyl methacrylate terpolymer (EBAGMA) may be included in the polymer blend. The invention further concerns a heat-sealed container, such as a disposable drinking cup, and a heat-sealed product package made from the packaging material, as well as uses of PBS or its derivates as blends with PLA in extrusion coating, for improving adhesivity of the coating to the fibrous substrate and reduced raw edge penetration to the packaging material, especially penetration of hot coffee held in the drinking cup.

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