To provide a resin molding mold capable of forming a resin molded product having embossing in which by controlling appearance of gloss, its texture is improved, and the resin molded product is prevented from occurrence of white blurring on the surface on which the molded embossing is formed. A resin molding mold in accordance with the present application is used for molding a resin molded product having embossing formed thereon. The resin molding mold includes a molding mold and a buffer layer formed on an inside mold surface of the molding mold. The buffer layer is formed by a mixture of a thermosetting resin and fine particles having substantially spherical shapes. The fine particles have a bulk specific gravity in a range from 0.4 g/ml or more to 0.9 g/ml or less, and on the surface of the buffer layer, a plurality of gloss adjusting convex portions having substantially spherical shapes derived from the fine particles are formed.

A replica master mold 10 comprises: a base material layer 11; and a surface shape body 12 formed on the base material layer 11 and having a fine irregular pattern, wherein a softening temperature of the surface shape body 12 is higher than a softening temperature of the base material layer 11.

The present disclosure provides a microstructured article (830, 930) including a thermoplastic polymer shaped to have a curve. At least a portion of the curve includes a microstructured surface (1010B, 10, 1110A, 200, 300, 400, 500, 600, 810, 840, 910, 940) of utilitarian discontinuities and the microstructured surface (101B, 10, 1110A, 200, 300, 400, 500, 600, 810, 840, 910, 940) includes peak structures and adjacent valleys (810, 910). The peak structures and the curve are formed of a single piece of the thermoplastic polymer. A method of making the microstructured articles is also provided including a) obtaining a tool (820, 920) shaped to include at least one of a protrusion or a concavity; b) disposing a microstructured film (800A, 800C, 900) on at least a portion of the tool (820, 920) including the protrusion and/or the concavity; and c) thermoforming a single piece of thermoplastic polymer onto the tool (820, 920) to form a microstructured article (830, 930) shaped to include a curve. The curve is an inverse of the protrusion or the concavity of the tool (820, 920).

A coextruded polyethylene blown film, particularly for packaging, has a thickness between 20 ?m and 250 ?m and is formed by a foamed, particle-containing core layer between a first unfoamed weldable outer layer and a second unfoamed outer layer. The core layer has a polyethylene or a polyethylene-based mixture as a polymer component having a melt mass-flow rate (MFR) per DIN ISO EN 1133 of greater than 5 g/10 min at 190? C. and 2.16 kg.

There is provided a master, an optical body, and a master manufacturing method, including: forming, on a surface of a master body that includes a base material, a periodic micro concave-convex structure in which an average cycle of concavities and convexities is less than or equal to visible light wavelengths; forming an inorganic resist layer on the surface of the master body; microparticulating and spraying an organic resist dissolved in a diluent onto the inorganic resist layer, to thereby form an organic resist layer, on a surface of which is provided a macro concave-convex structure in which the average cycle of concavities and convexities is greater than the visible light wavelengths; and etching the organic resist layer, the inorganic resist layer, and the master body, to thereby superimpose and uniformly form the micro concave-convex structure and the macro concave-convex structure on the surface of the base material.

The present disclosure provides a negative mold for luggage molding and an application thereof. The negative mold includes an upper mold holder (11), a convex mold (12), a lower mold holder (21), a concave mold (22), a lifting platform (23), and a material frame (31). The upper mold holder is arranged with a first airflow channel (111); in the adsorbed state, the upper mold holder abuts against the material frame to define an upper air cavity (112); air is blown downward through the first airflow channel to stretch the sheet (41), while each of the convex mold and the concave mold moves in a direction close to the sheet to define a molding space; in the mold detaching state, each of the convex mold and the concave mold moves toward in another direction away from the material frame to detach the molded sheet.

The present invention provides a method for manufacturing a polyimide film with a reduced gloss, which comprises providing a diamine and a diacid anhydride for polymerization in a solvent to form a polyimide precursor solution; adding 2-5 equivalents of a dehydrating agent and a catalyst into the polyimide precursor solution and then coating a carrier with the polyimide precursor solution to form a polyimide gel film; providing an embossing wheel to roll the polyimide gel film peeled from the carrier at a temperature of 140-200 C. and a pressure of 3-10 Kgf/cm.sup.2 to form a concave and convex shape on a surface of the polyimide gel film; and baking the polyimide gel film to form a polyimide film with a 60 gloss of less than 100 GUs.

A matte polyester film and a method for manufacturing the same are provided. The method for manufacturing the matte polyester film includes: providing a recycled polyester material; physically regenerating a part of the recycled polyester material to form physically regenerated polyester chips having a first intrinsic viscosity; chemically regenerating another part of the recycled polyester material to form chemically regenerated polyester chips having a second intrinsic viscosity less than the first intrinsic viscosity; mixing matte regenerated polyester chips, the physically regenerated polyester chips, and the chemically regenerated polyester chips according to a predetermined intrinsic viscosity so as to form a polyester masterbatch material; melting and then extruding the polyester masterbatch material to obtain the matte polyester film having the predetermined intrinsic viscosity.

Decorative films, useful for making a wide range of decorative laminates, that have a relatively deep texture on one major face and a relatively smoother, print receptive surface on the other major face. Notwithstanding the deep texture, the films have superb tracking characteristics and are compatible with a wide variety of automated printing operations. This allows automated printing equipment to print information directly onto the films.

To provide a resin molding mold capable of forming a resin molded product having embossing in which by controlling appearance of gloss, its texture is improved, and the resin molded product is prevented from occurrence of white blurring on the surface on which the molded embossing is formed.

A resin molding mold in accordance with the present application is used for molding a resin molded product having embossing formed thereon. The resin molding mold includes a molding mold and a buffer layer formed on an inside mold surface of the molding mold. The buffer layer is formed by a mixture of a thermosetting resin and fine particles having substantially spherical shapes. The fine particles have a bulk specific gravity in a range from 0.4 g/ml or more to 0.9 g/ml or less, and on the surface of the buffer layer, a plurality of gloss adjusting convex portions having substantially spherical shapes derived from the fine particles are formed.