摘要:
A one-way valve 10 integrated into a lamination 12 of the kind used as a membrane seal for coffee containers and the like. The valve 10 comprises a top layer 14, a substrate 16 and a fluid polyol film 22. The top layer 14 and the substrate 16 are adhered together by an adhesive 18 disposed between the top layer 14 and the substrate 16. The adhesive 18 defines a boundary of a valve chamber 20 in which the top layer 14 and the substrate 16 are not permanently adhered to each other. The film 22 enhances the adhesiveness of the top layer 14 to the substrate 16 in the area of the valve chamber 20 so that gas inside the container does not escape until the internal pressure reaches a minimum value.
摘要:
A flexible laminate suitable for forming a package (10) having a reclosable flap (12) is provided that includes pressure sensitive adhesive (34) extending in a periphery region past a reseal margin (42) for the flap (12) and on an opposite side therefrom for joining an outer and inner layer (30, 36) of the laminate together, whether directly or indirectly. The pressure sensitive adhesive (34) can overlie a permanent adhesive (32) in the periphery region, or directly join the outer and inner layers of the laminate together. The use of pressure sensitive adhesive (34) in the region can reduce the tight registration needed for cutting the outer layer (30) to define an outward layer of the flap (12), thereby reducing the chances for cutting into a portion of the outer layer (30) joined only by permanent adhesive (32) to the inner layer (36).
摘要:
Provided is a packaging material in which an adhesion preventing layer is laminated on a surface of a heat sealing layer and which can exhibit improved hot tack property. The packaging material includes in the following order at least a) a base layer, b) a heat sealing layer, and c) an adhesion preventing layer, wherein (1) the heat sealing layer contains filler particles and has a dense region where the filler particles are densely present and a sparse region where the filler particles are sparsely distributed, (2) each of the dense region and the sparse region is a substantially belt-like region, and (3) the dense region and the sparse region are alternately and consecutively arranged such that the entire heat sealing layer has a striped pattern.
摘要:
The invention relates to a flexible lid for sealed closing of an opening in a container, the lid is a multilayer structure comprising a first and a second main layer, wherein at least the first main layer is a laminate structure comprising a layer of aluminum and an outer layer of a weldable plastic, wherein the outer weldable layer faces the second main layer. The invention is characterized in that the first and the second main layer are welded to one another across a welding area, wherein the weld area comprises a first part located in the center of the lid where the welding is arranged in a circular path, wherein the circular weld path has at least one interruption which allows communication between a volume inside the circular weld path and a volume outside the circular weld path.
摘要:
A multilayer membrane (1) is provided for, comprising an aluminium metal sheet (2) and a polyurethane layer (3) consisting of polyurethane resin coating.
摘要:
The invention relates to a covering substrate (10) capable of being bonded to a rim (14) of a container (12). The container includes a top wall (24) and the rim extends beyond the top wall defining a top portion of the container. The covering provides a hygienic environment at the top portion of the container, comprising: a substrate (16); a heat seal coating (18) secured to the substrate; a transparent material (20) secured in part to the substrate opposite the heat seal coating, wherein the heat seal coating bonds the substrate to the container substantially within the perimeter of the rim; a graphic (28) secured to the transparent material; and a tab (26) defined in a portion of the transparent material, wherein the tab is wholly contained within the perimeter of the rim. A hygienically covered container is also described.
摘要:
An apparatus comprises an operating unit (31; 58; 131), which can be a welding unit (31; 131) for welding a closing film (22) to an edge zone (41) of a containing element (3) or a separating unit (58) for separating containing elements (42) from portions of sheet material (62), said apparatus (21; 61; 81; 161) comprising a control unit (CU2; CU3) programmed to enable said operating unit (31; 58; 131) to process selectively a continuous strip of containing elements (3; 42) or discrete groups (118) of containing elements (3; 42).
摘要:
An apparatus comprises an operating unit (31; 58; 131), which can be a welding unit (31; 131) for welding a closing film (22) to an edge zone (41) of a containing element (3) or a separating unit (58) for separating containing elements (42) from portions of sheet material (62), said apparatus (21; 61; 81; 161) comprising a control unit (CU2; CU3) programmed to enable said operating unit (31; 58; 131) to process selectively a continuous strip of containing elements (3; 42) or discrete groups (118) of containing elements (3; 42).
摘要:
The present invention relates to a lid film (1) for packaging of e.g. human or pet food. The lid film (1) has a multi-layer structure and comprises a sealing layer (3), a barrier layer (5), a print primer layer (7), a print layer (9), an optional print protection layer, and a relief layer (11). The sealing layer (3), the barrier layer (5), the print primer layer (7), the print layer (9) and the optional print protection layer are essentially flat. The relief layer (11) is arranged at least on a part of the print layer (9) and comprises at least n three dimensional structures (13) per cm 2 projecting at an essentially right angle from a surface of the adjacent print layer (9) or the optional print protection layer and said three dimensional structures (13) forming an non-continuous elevated surface (14), whereby the total of said elevated surface (14) area formed by the three dimensional structures (13) equals at least m% of a total surface area of the lid film and whereby the three dimensional structures (13) have a minimal height of 5µm.