Dai Nippon Printing Patente

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To provide a laminate having high impact resistance after retort treatment when used for a packaging bag, such as a retort pouch. A laminate including: a second substrate; a second adhesive layer; and a sealant layer in this order in a thickness direction, wherein the laminate includes only one substrate, the second substrate has a multilayer structure including a first surface resin layer, a polypropylene layer, and a second surface resin layer in this order in a thickness direction and is disposed such that the second surface resin layer faces the second adhesive layer, the second surface resin layer contains a random copolymer of propylene and an α-olefin other than propylene in an amount of 50% by mass or more based on a total amount of the second surface resin layer, the second adhesive layer has a thickness of 1 µm or more and 4.5 µm or less and a modulus of elasticity of 20 MPa or more and 50 MPa or less, and the sealant layer is an unstretched polypropylene film and has a composite modulus of elasticity of 900 MPa or less.

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A mask may include a base material that includes a base-material first surface, a base-material second surface located opposite the base-material first surface, and at least one first opening that extends from the base-material first surface to the base-material second surface, and a multilayer body including a magnetic layer that includes a first surface facing the base-material second surface and a second surface located opposite the first surface and that contains magnetic metal and a non-magnetic layer located between the magnetic layer and the first surface or between the magnetic layer and the second surface. The multilayer body may include a pattern region that overlaps the first opening in plan view and that includes multiple second openings extending through the magnetic layer and the non-magnetic layer, a surrounding region that surrounds the pattern region in plan view, and an outer edge region that surrounds the surrounding region in plan view and that is located along an outer edge of the multilayer body.

A through-via substrate may include a substrate including a first surface and a second surface located opposite the first surface, the substrate including a through hole including a wall surface extending from the first surface to the second surface; a through via including a first end face located at the first surface and a second end face located at the second surface, the through via filling the through hole; and an adhesive layer provided between the through via and the wall surface of the through hole. The through via may include a first layer including the first end face and a second layer including the second end face, the second layer being in contact with the first layer at an interface. The adhesive layer may extend along the wall surface toward the second surface in such a manner as not to reach the second surface. The adhesive layer may include a second end where the adhesive layer extending toward the second surface terminates. The interface may be located between the first surface and the second end of the adhesive layer or between the second surface and the second end of the adhesive layer in a thickness direction of the substrate.

As a sealant film for laminates that is superior in heat resistance, low-temperature sealability, and impact resistance, there is provided a sealant film for use in a laminate in which the percentage of polypropylene is 80% by mass or more. The sealant film includes at least a first layer positioned at one surface of the laminate and a second layer in contact with the first layer. The first layer contains a first matrix resin component constituting 51% by mass or more and 90% by mass or less and at least one first dispersed component, and has a sea-island structure in which the first dispersed component is dispersed in the first matrix resin component. The second layer contains a second matrix resin component constituting 51% by mass or more and 85% by mass or less and at least one second dispersed component, and has a sea-island structure in which the second dispersed component is dispersed in the second matrix resin component. The first matrix resin component is a propylene-ethylene random copolymer, and the first dispersed component includes 5% by mass or more polyethylene. The second matrix resin component is block polypropylene, and the second dispersed component includes 5% by mass or more polyethylene.

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A manufacturing apparatus for an electrical storage device intermediate manufactures an electrical storage device intermediate using an electrode assembly unit and an outer film. The electrical storage device intermediate includes a first lid, a second lid, an electrode assembly, a first terminal, and a second terminal. The electrode assembly is located between the first lid and the second lid. The first terminal is electrically connected to the electrode assembly. The first terminal is connected to the first lid. The second terminal is electrically connected to the electrode assembly. The second terminal is connected to the second lid. The electrical storage device includes an outer package and the electrode assembly housed in the outer package. The outer package includes the first lid, the second lid, and the outer film. The manufacturing apparatus includes a fixing device that fixes the first lid and the second lid of the electrode assembly unit, a wrapping device that wraps the electrode assembly unit with the outer film such that the outer film contacts a side end surface of the first lid and a side end surface of the second lid, and a first joining device that joins the side end surfaces and the outer film.

As a laminate that can suppress the deterioration of gas barrier properties after retort treatment when used in a packaging bag, such as a retort pouch, the laminate includes at least a barrier film in which a substrate, an inorganic oxide layer, and a barrier covering layer are stacked in this order, an adhesive layer, and a sealant layer, wherein the substrate includes a stretched substrate containing polypropylene as a main component, the sealant layer contains polypropylene as a main component, the barrier film is disposed such that the covering layer faces the adhesive layer, a cross section of the adhesive layer in the laminate has a modulus of elasticity of 100.0 MPa or less as measured with an atomic force microscope (AFM), and an indentation hardness measured from a cross section of the covering layer in the laminate by a nanoindentation method is 0.9 GPa or more and 1.7 GPa or less.

[Problem]To provide a multilayer body capable of suppressing deterioration of barrier properties even after heat sterilization treatment.[Solution]A heat-sterilized multilayer body for use in a packaging bag containing a retorted food or a boiled food. The multilayer body includes: a barrier film in which a biaxially stretched polypropylene substrate, an inorganic oxide vapor deposition film, and a covering layer having barrier properties are laminated in this order; and a sealant layer. In the covering layer of the multilayer body, a composite elastic modulus and an indentation hardness measured by a nanoindentation method from a cross section of the covering layer are respectively from 5.0 GPa to 9.5 GPa and from 0.9 GPa to 1.7 GPa.

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Provided is an optical laminate for a display device that can prevent poor display quality of the display device when the barrier property is enhanced using silicon oxide. An optical laminate for a display device, comprising: a barrier film comprising a first base material and an inorganic oxide layer on the first base material; and a second base material, wherein the barrier film and the second base material are laminated via an adhesive layer present between the first base material side of the barrier film and the second base material, the inorganic oxide layer comprises silicon oxide and has a thickness of 30 nm or more, a haze of the second base material and a haze of the barrier film satisfies the relationship of the haze of the second base material ≤ the haze of the barrier film, and a thickness of the barrier film and a thickness of the second base material satisfies the relationship of the thickness of the barrier film ≤ the thickness of the second base material.

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The present disclosure provides a decorative member comprising a metal substrate and a design layer, in this order in a thickness direction, wherein the design layer includes an organic colorant; and on a first surface located on the design layer side based on the metal substrate, the decorative member includes a region X having a flop index of 4.5 or more.

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