There is provided a copper foil having a surface coating layer that can achieve a high bonding strength to a resin layer even if the copper foil has an extremely smooth surface such as one formed by vapor deposition, for example, sputtering and also has a desirable insulation resistance suitable for achieving a fine pitch in a printed wiring board. A surface-treated copper foil according to the present invention includes a copper foil and a silicon-based surface coating layer provided on at least one surface of the copper foil, the silicon-based surface coating layer being mainly composed of silicon (Si). The silicon-based surface coating layer has a carbon content of 1.0 to 35.0 atomic % and an oxygen content of 12.0 to 40.0 atomic % relative to a total content in 100 atomic % of carbon (C), oxygen (O) and silicon (Si) elements as measured by X-ray photoelectron spectroscopy (XPS).

Lint removal devices are disclosed. Lint removal devices include a base layer and a lint removal material layer that is connected to the base layer. Lint removal device base layers are particularly well suited for promotional images. Systems including lint removal devices also can include receiving sleeves configured to removably retain lint removal devices.

A base material for electrophotography is produced by stacking a base paper, a water-based adhesive layer constituted by water-soluble or water-dispersible adhesive containing 3 to 5 g/m.sup.2 of solids, a metal layer, and a polyamide resin layer, in this order. The base material that uses adhesive does not wrinkle when laminated, has sufficient metallic gloss through a metal deposition layer, ensures that electrophotographic printing is implemented in a reliable manner, and allows for easy separation/collection of each layer when the used sheets are collected and recycled.

Microporous films comprising a polymeric composition and a filler, wherein the film has an average water vapor transmission rate of at least about 16,000 grams H.sub.2O/24-hour/m.sup.2, a hydrostatic head pressure of at least about 300 mbar, and a basis weight of from about 5 gsm to about 50 gsm.

A color developing structure capable of achieving multi-hued color through a simple process, and a method of producing the same are provided. In the color developing structure formed on a surface of a base material: the color developing structure has a rectangular shape in plan view, and is formed of a concavo-convex structure having a plurality of convexities with different heights and a laminated film including a plurality of layers laminated on the concavo-convex structure; the plurality of layers adjoining in a lamination direction are made of materials that transmit light of the same wavelength band and have different refractive indices with respect to light of the wavelength band; and the plurality of layers have about the same thickness.

A carrier film of thermoplastic polyester has releasable metal adhesive properties suitable for a metal transfer in which the polyester film is metalized and the metal layer is subsequently transferred to a permanent adhesive-coated substrate. The metal layer is in direct contact with the polyester carrier film and no intermediate release layer is present. Desired metal adhesion is provided by dispersing an suitable surfactant, and optionally, a hydrocarbon wax, uniformly into the polyester film. Surfactant on the outer surface of the carrier film modifies metal adhesion to the polyester such that the metal can be removed in a metal transfer operation.

[Problems] Provided is a discoloring body which is discolored by application of water and has high glossiness and is excellent in applicability to various fields such as a toy field, a decoration field, and a design field.

[Solution] A discoloring body including a supporting body, a porous layer in which a low refractive index pigment is fixed in a dispersed state by way of a binder resin, and a glossy resin layer, in which an occupancy area ratio of the glossy resin layer is 1% to 95% with respect to a 1 cm square at any position in the porous layer.

Provided is a multilayered coextruded thermoplastic food casing comprising a porous inner layer capable of absorbing, retaining, desorbing and transferring at least one functional additive to food encased in said casing; a layer having a barrier effect for water vapor; and an adhesive layer, wherein the porosity of said porous inner layer is generated by (co)extruding a composition comprising a polymer and a supercritical pore-forming agent, and a method for producing said multilayered coextruded thermoplastic food casing.

A method of making a film by coextruding a multi-layer structure comprising at least one skin layer comprising a metallocene-based polypropylene random copolymer. A coextruded multi-layer film comprising at least one skin layer comprising a metallocene-based polypropylene random copolymer, and a flexible package compromising such a coextruded multi-layer film are also provided.

A floor panel is provided. The floor panel composition includes a wear layer and a base layer. The base layer includes a first base sections having a first composition of polyvinyl chloride, filler, and plasticizer, a second base sections having a second composition with a higher content of polyvinyl and plasticizer than the first composition, and a glass fiber section positioned between the first base section and the second base section.