摘要:
A tear-open packaging is formed by a pair of plastic film panels having inner faces joined together by a weld. One of the film panels is formed by a two- or three-layer coextrusion having a nonsticky foam core layer and a weldable inner layer that is secured by the weld directly to the inner face of the other film panel. The strength of the core layer and of the bond between the core layer and inner and outer layers are such that, when the two panels are pulled away from each other, the core layer or an interface between the core layer and the weldable inner layer will tear along the weld. If the weld does not extend directly to an edge of the film tear-open packaging, the weldable layer breaks on both sides of the weld.
摘要:
A package is formed a closed bag made of a multilayer film and contents enclosed in the bag. The film is folded to form the bag and has flat film sides and outer edges that are reinforced by weld seams. The film of the bag has a density of 0.5 g/cm3 to 0.9 g/cm3, a printable outer layer forming an outside surface of the package, an inner seal layer made of a sealable polymer forming an inside surface of the package, and a foamed polymer core layer between the outer layer and the inner layer. The contents are a lumpy or granular bulk material.
摘要翻译:包装形成由多层膜制成的封闭袋和封装在袋中的内容物。 该薄膜被折叠以形成袋子,并且具有平坦的薄膜侧面和通过焊缝加强的外边缘。 袋的膜的密度为0.5g / cm 3至0.9g / cm 3,形成包装外表面的可印刷外层,形成包装内表面的可密封聚合物制成的内密封层和 发泡聚合物芯层在外层和内层之间。 内容物是块状或颗粒状的散装材料。
摘要:
A coextrusion film has a core layer made of thermoplastic elastomer, and first and second outer layers sandwiching the core layer. The outer layers are each formed from a polymer having a lower elasticity than the thermoplastic elastomer of the core, each have a layer thickness of less than 15 μm, each have a density of less than 0.800 g/cm3, and each have more than 500 gas-filled cells per 1 cubic millimeter of volume.
摘要:
A coextrusion film has a core layer made of thermoplastic elastomer, and first and second outer layers sandwiching the core layer. The outer layers are each formed from a polymer having a lower elasticity than the thermoplastic elastomer of the core, each have a layer thickness of less than 15 μm, each have a density of less than 0.800 g/cm3, and each have more than 500 gas-filled cells per 1 cubic millimeter of volume.
摘要翻译:共挤出膜具有由热塑性弹性体制成的芯层,以及夹住芯层的第一和第二外层。 外层各自由具有比芯的热塑性弹性体低的弹性的聚合物形成,每个层具有小于15μm的层厚度,每个密度小于0.800g / cm 3,并且各自具有多于500个 每1立方毫米体积的气体充填电池。
摘要:
A film laminate wound up to form a film roll, from which bags with an integrated handle are produced in a VFFS form-fill and seal bag machine. The film laminate is produced by coating a film web of an outer film with a lamination adhesive and applying a material web of a sealable film to the adhesive layer. The material web is pressed together with the film web and adhesive layer in a lamination gap between a lamination roller and a pressing roller. A reinforcement strip passed to the lamination gap contacts the adhesive layer, between the film web and the sealable film. The circumference surface of the pressing roller has a depression that is coordinated with the film thickness and the film width of the reinforcement strip, so that a uniform pressing pressure prevails in the lamination gap, over the entire width of the laminate.
摘要:
A package is formed a closed bag made of a multilayer film and contents enclosed in the bag. The film is folded to form the bag and has flat film sides and outer edges that are reinforced by weld seams. The film of the bag has a density of 0.5 g/cm3 to 0.9 g/cm3, a printable outer layer forming an outside surface of the package, an inner seal layer made of a sealable polymer forming an inside surface of the package, and a foamed polymer core layer between the outer layer and the inner layer. The contents are a lumpy or granular bulk material.
摘要翻译:包装形成由多层膜制成的封闭袋和封装在袋中的内容物。 该薄膜被折叠以形成袋子,并且具有平坦的薄膜侧面和通过焊缝加强的外边缘。 袋的膜的密度为0.5g / cm 3至0.9g / cm 3,形成包装外表面的可印刷外层,形成包装内表面的可密封聚合物制成的内密封层和 发泡聚合物芯层在外层和内层之间。 内容物是块状或颗粒状的散装材料。
摘要:
In an antifungal protective film having at least one layer and an acidifying polymer and a disulfite the at least one film layer includes fluid-filled bubbles or cells that are created by foaming. The cells created by foaming during the extrusion enable the generated sulfur dioxide to collect inside this film layer, thereby being buffered and achieving a long-term action releasing the antifungal sulfur dioxide. The film can have a single foamed layer containing the polymer and disulfite or such a layer sandwiched between two outer layers having different properties, all produced by coextrusion.
摘要:
A plastic film having a thickness of less than 400 μm has a base layer at least partially of polyolefin of renewable raw material or a polyolefin mixture of renewable raw material and a first layer foamed by at least 20%.
摘要:
A film laminate wound up to form a film roll, from which bags with an integrated handle are produced in a VFFS form-fill and seal bag machine. The film laminate is produced by coating a film web of an outer film with a lamination adhesive and applying a material web of a sealable film to the adhesive layer. The material web is pressed together with the film web and adhesive layer in a lamination gap between a lamination roller and a pressing roller. A reinforcement strip passed to the lamination gap contacts the adhesive layer, between the film web and the sealable film. The circumference surface of the pressing roller has a depression that is coordinated with the film thickness and the film width of the reinforcement strip, so that a uniform pressing pressure prevails in the lamination gap, over the entire width of the laminate.
摘要:
A monoaxially elastic laminate film is provided with a core layer made of a thermoplastic elastomer and at least one skin layer co-extruded together with the core layer. The skin layer is made of a thermoplastic plastic with a molecular lattice that becomes brittle when it solidifies, so that the plastic stretches only slightly when a stretching force is applied, and breaks without any transition when a pre-determined tear force has been exceeded. After becoming brittle, the molecular lattice is irreversibly broken up by monoaxial stretching in the stretching direction, but is maintained perpendicular to the stretching direction, and thereby reinforces the film in the crosswise direction.