A resin molding is provided. The resin molding includes an optically transparent plate-shaped portion, which has a first surface having a smooth surface portion, and a second surface having plural sections, wherein each of the plural sections has a width and includes one or more convex portions which have one or more ridge lines extending in a ridge line direction. The ridge line direction of the one or more convex portions of at least one of the plural sections is different from the ridge line direction of the one or more convex portions of one or more of others of the plural sections. When the first surface of the resin molding is observed from outside, the resin molding has metallic appearance.

Provided is a method for manufacturing a Fresnel lens mold by performing cutting process on a workpiece with a cutting tool, the Fresnel lens mold having a lens surface and an upright surface alternately arranged. The cutting tool has a first cutting edge having an arc shape with a radius r and a second cutting edge continuous to the first cutting edge. A machining apparatus repeatedly performs a first process of forming, with the first cutting edge, a lens mold surface serving as a mold of a lens surface of a Fresnel lens, and a second process of forming, with the second cutting edge, an upright mold surface serving as a mold of an upright surface of the Fresnel lens to manufacture the Fresnel lens mold.

A resin product includes an outer surface. The outer surface includes a first area and a second area. The first area includes a surface pattern including a concave and convex portion having a first difference in height. The second area includes a surface pattern including a concave and convex portion having a second difference in height, larger than the first difference in height. An arithmetic average height of a top of a convex portion of the concave and convex portion having the first difference in height is larger than an arithmetic average height of a top of a convex portion of the concave and convex portion having the second difference in height.

Provided are textured articles, compositions and processes for their manufacturing, specifically molded articles, having textured or patterned, e.g. randomly-textured, surfaces. In particular, the disclosure concerns compositions and processes for manufacturing molded polymer-based articles that visually and texturally mimic or imitate various materials, such as concrete, marble, ceramics, wood, etc.

A mold cavity which is a mold die includes a die body and a plating layer provided on the surface of a mold surface. In this case, the mold surface has a leather-grain transfer surface for forming a grain pattern. The leather-grain transfer surface includes a first uneven-shape part and a second uneven-shape part formed at the surface of the first uneven-shape part and smaller in an uneven-shape width than the first uneven-shape part. The uneven-shape width falls within a range of 10 μm or more and less than 500 μm. The plating layer is an electroless-plating layer. A thickness of at least part of the plating layer falls within a range of 0.1 μm or more and less than 10 μm.

A method of molding an interior part for a vehicle includes determining a 3D graphic sample model. A shape of the sample model has concave portions having curvatures determined through 3D modeling and gradients of an inner surface of each concave portion. A molded sample having the same general shape as the sample model is injection molded. Information related to scratch occurrence positions is acquired from the molded sample. Information of curvatures and gradients of the concave portions of the sample model are acquired and collected at positions on the sample model corresponding to the scratch occurrence positions. A limit angle and limit angle are determined by using the collected information and preset curvatures for the concave portion of a design of the interior part. The interior part having the concave portion with a shape based on the determined draft angle and the preset curvatures can then be injection molded.

A method for decorative molding capable of reducing a preparation time at the time of replacing a mold and expecting improvement in positioning accuracy of a decorative pattern in a molded article includes supplying a film on which a decorative pattern is formed between a first mold and a second mold in a mold open state of a mold, imaging a mold-side alignment mark recorded in the mold and a film-side alignment mark recorded in the film by a camera, positioning the film with respect to the mold by moving the film so that the film-side alignment mark comes close to the mold-side alignment mark, injecting resin into the mold in a mold closed state in which the film is sandwiched between the first mold and the second mold and cooling the resin to form a molded article and opening the mold and taking out the molded article in which the decorative pattern of the film is transferred to the surface.

A gardening glove consisting of a glove liner defining a plurality of fingers, a thumb, and a palm is provided. The glove liner is placed on a first glove mandrel and received inside an injection mold configured to inject hot liquid PVC material on the glove liner's palm, fingers, and thumb, creating patterns of raised nodules that facilitate digging, for example.

An electronic device and method for forming a housing of the same is disclosed. The electronic device includes: a housing including: a first plate forming a front surface of the housing, a second plate integrally forming a rear surface and side surface of the housing, wherein a space is enclosed between the front surface, side surface and rear surface, and wherein the second plate includes a first surface forming the side and rear surfaces of the housing, and a second surface disposed opposite to the first surface, and a display disposed in the space and at least partially visible through the first plate, wherein at least a portion of the second surface includes a pattern having surface roughness having a height of 0.1 m to 1 m.

Golf ball methods and molds for quickly and efficiently eliminating air/gas from within a mold during golf ball manufacture and the improved golf balls resulting therefrom.