Abstract: An air-permeable packaging material which includes a non-perforated polyolefin layer having a thickness of 3 ?m to 18 ?m and constituted of at least one polymer selected from the group consisting of polypropylene and polyethylene and a net-shaped reinforcing layer; a package which includes the air-permeable packaging material, the non-perforated polyolefin layer facing outward, and which contains an oxygen scavenger, a desiccant, a deodorant, an insect repellent, or a fragrance; and a method for producing the package.

Abstract: A transparent net structure including two or more uniaxial alignment bodies of a multilayer film which includes a thermoplastic resin layer containing at least one polypropylene (T) selected from the group consisting of block polypropylene and random polypropylene polymerized with a metallocene catalyst, and an adhesive layer containing polypropylene (A) polymerized with a metallocene catalyst and laminated on at least one surface of the thermoplastic resin layer, in which the two or more uniaxial alignment bodies are laminated or woven such that the adhesive layers are interposed among the two or more uniaxial alignment bodies and alignment axes of the two or more uniaxial alignment bodies intersect with each other.

Abstract: A sheet material is provided which includes a reticular structure, a polyamide-based resin film laminated on one face of the reticular structure, and a resin layer formed on a face of the polyamide-based resin film, the face being on the opposite side of the reticular structure. The resin layer prevents precipitation of oligomers included in the resin film on the surface of the sheet material when alcohol permeates through the polyamide-based resin film.

Abstract: An air-permeable packaging material which includes a non-perforated polyolefin layer having a thickness of 3 ?m to 18 ?m and constituted of at least one polymer selected from the group consisting of polypropylene and polyethylene and a net-shaped reinforcing layer; a package which includes the air-permeable packaging material, the non-perforated polyolefin layer facing outward, and which contains an oxygen scavenger, a desiccant, a deodorant, an insect repellent, or a fragrance; and a method for producing the package.

Abstract: To provide a sheet material capable of suppressing reduction in moisture or ethanol permeability while maintaining desired strength, and an alcohol transpiration agent package using the same. A sheet material 11 includes a mesh-like structure 12 and a polyamide-based resin film 13. The mesh-like structure is made up of two or more uniaxially oriented members including a thermoplastic resin layer and a linear low-density polyethylene layer laminated on at least one side of the thermoplastic resin layer, and is obtained by laminating or weaving the two or more uniaxially oriented members through the linear low-density polyethylene layer so as to cross orientation axes of the two or more uniaxially oriented members. A polyamide-based resin film is laminated on the mesh-like structure through the linear low-density polyethylene layer. The mesh-like structure and the polyamide-based resin film are bonded together by the melted linear low-density polyethylene layer of the mesh-like structure.