Multi-layer heat-sealable packaging material, a food package made thereof and a method of packaging
    1.
    发明申请
    Multi-layer heat-sealable packaging material, a food package made thereof and a method of packaging 审中-公开
    多层可热封包装材料,其制成的食品包装及包装方法

    公开(公告)号:US20060193952A1

    公开(公告)日:2006-08-31

    申请号:US11416314

    申请日:2006-05-03

    IPC分类号: A23B7/148

    摘要: The invention relates to a multi-layer heat-sealable packaging material especially for food packages. In addition, objects of the invention are a food package formed of the said packaging material, a method of packaging, and the use of the material for packages. The packaging material (1) comprises a middle layer (3) of fibre material, such as cardboard; at least one polymeric protective layer (4, 5) protecting the product from going bad; and polymeric heat sealing layers (2, 7) preferably on both sides of the packaging material. According to the invention, the heat sealing layer (7) forming the inner surface of the closed package, is blended with light-absorbing pigment, such as carbon black, for protecting the product from visible light. By further blending white pigment, such as titanium dioxide, into the heat sealing layer (7), a grey tint resembling an aluminium foil has been achieved for the layer. The heat sealing polymer may be low-density polyethylene (PE-LD), and an oxygen and aroma proof sealing layer (4) of, for example, ethylene vinyl alcohol copolymer (EVOH) or polyamide (PA) may be provided between it and the cardboard (3).

    摘要翻译: 本发明涉及特别用于食品包装的多层可热封包装材料。 此外,本发明的目的是由所述包装材料形成的食品包装,包装方法和用于包装的材料的使用。 包装材料(1)包括纤维材料的中间层(3),例如纸板; 至少一个保护产品不会变坏的聚合物保护层(4,5); 和聚合物热封层(2,7),优选在包装材料的两侧。 根据本发明,形成封闭封装的内表面的热封层(7)与诸如炭黑的光吸收颜料混合,以保护产品免受可见光的影响。 通过将白色颜料(例如二氧化钛)进一步混合到热封层(7)中,已经实现了类似于铝箔的灰色层。 热封聚合物可以是低密度聚乙烯(PE-LD),并且可以在其与...之间提供例如乙烯 - 乙烯醇共聚物(EVOH)或聚酰胺(PA)的氧气和香气密封层(4) 纸板(3)。

    Aluminum-colored multilayer heat-sealable packaging material
    3.
    发明授权
    Aluminum-colored multilayer heat-sealable packaging material 有权
    铝色多层热封包装材料

    公开(公告)号:US07329460B2

    公开(公告)日:2008-02-12

    申请号:US10181357

    申请日:2001-04-09

    IPC分类号: B32B9/04 B32B27/08

    摘要: The invention relates to a multi-layer heat-sealable packaging material especially for food packages. In addition, objects of the invention are a food package formed of the said packaging material, a method of packaging, and the use of the material for packages. The packaging material (1) comprises a middle layer (3) of fibre material, such as cardboard; at least one polymeric protective layer (4, 5) protecting the product from going bad; and polymeric heat sealing layers (2, 7) preferably on both sides of the packaging material. According to the invention, the heat sealing layer (7) forming the inner surface of the closed package, is blended with light-absorbing pigment, such as carbon black, for protecting the product from visible light. By further blending white pigment, such as titanium dioxide, into the heat sealing layer (7), a grey tint resembling an aluminium foil has been achieved for the layer. The heat sealing polymer may be low-density polyethylene (PE-LD), and an oxygen and aroma proof sealing layer (4) of, for example, ethylene vinyl alcohol copolymer (EVOH) or polyamide (PA) may be provided between it and the cardboard (3).

    摘要翻译: 本发明涉及特别用于食品包装的多层可热封包装材料。 此外,本发明的目的是由所述包装材料形成的食品包装,包装方法和用于包装的材料的使用。 包装材料(1)包括纤维材料的中间层(3),例如纸板; 至少一个保护产品不会变坏的聚合物保护层(4,5); 和聚合物热封层(2,7),优选在包装材料的两侧。 根据本发明,形成封闭封装的内表面的热封层(7)与诸如炭黑的光吸收颜料混合,以保护产品免受可见光的影响。 通过将白色颜料(例如二氧化钛)进一步混合到热封层(7)中,已经实现了类似于铝箔的灰色层。 热封聚合物可以是低密度聚乙烯(PE-LD),并且可以在其与...之间提供例如乙烯 - 乙烯醇共聚物(EVOH)或聚酰胺(PA)的氧气和香气密封层(4) 纸板(3)。

    Method for manufacturing heat-sealable packaging material having barrier layer containing cycloolefin copolymer
    5.
    发明申请
    Method for manufacturing heat-sealable packaging material having barrier layer containing cycloolefin copolymer 审中-公开
    制造具有含有环烯烃共聚物的阻隔层的可热封包装材料的方法

    公开(公告)号:US20070264453A1

    公开(公告)日:2007-11-15

    申请号:US11878113

    申请日:2007-07-20

    摘要: Method of manufacturing polymer-coated heat-sealable packaging material and sealed packages (e.g., carton, box, or bag packages for dry and liquid foods). The material includes a fiber base of packaging paper or packaging board, an outer polymeric heat sealing layer such as LDPE, and an inner polymeric water vapor barrier layer which is partly or totally formed of an amorphous cycloolefin copolymer. In the method, the cycloolefin copolymer water vapor barrier and the heat sealing layers are brought onto the fiber base by an extrusion step, and in accordance with the manufacturing method, they can be placed on one side of the fiber base or on both sides of the fiber base for achieving a moisture barrier on both sides of the package. Also, polymeric oxygen barrier layers, such as EVOH or polyamide layers, can be incorporated into the packaging material. By using the cycloolefin copolymer as an extruded water vapor barrier layer, curling of the packaging material is prevented.

    摘要翻译: 制造聚合物涂覆的可热封包装材料和密封包装(例如用于干燥和液体食品的纸箱,盒或袋包装)的方法。 该材料包括包装纸或包装板的纤维基材,诸如LDPE的外部聚合物热密封层,以及部分或全部由无定形环烯烃共聚物形成的内聚合物水蒸气阻隔层。 在该方法中,将环烯烃共聚物的水蒸气阻隔层和热封层通过挤压工序带到纤维基材上,根据该制造方法,可以将其放置在纤维基材的一面或两侧 用于在包装的两侧实现防潮层的纤维基底。 此外,聚合氧阻隔层,例如EVOH或聚酰胺层,可以并入包装材料中。 通过使用环烯烃共聚物作为挤出水蒸汽阻挡层,防止了包装材料的卷曲。