Linear Low-Density Polyethylene for Flexible Packaging

Manufacturing method for molds with concave patterns to prevent material flow in applications like micro-needle arrays. The method involves preparing a thermoplastic sheet with a concave level difference part having a larger bottom area than the projection stand. The original edition with the projection is positioned relative to the concave part. The projection is pressed into the bottom to form the concave pattern reversal. This prevents material overflow during filling. The mold is made by electroforming from the thermoplastic sheet. The mold can also be made by forming a concave level difference part on a metal mold and reversing the projection.

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Embossing packaging material to provide tactile features for improving grip and handling of liquid food packages. The embossing is done before lamination to prevent damage to inner layers. The embossed features temporarily flatten during lamination but regain height when filled and sealed. This allows the embossed texture to be felt on the exterior of the package for tactile feedback.

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Production method for molds with recessed patterns and manufacturing method for patterned sheets using those molds. The mold production involves fixing an electroformed part of the mold without the end section to one half of the mold, clamping the electroformed section and middle section between the halves to create a cavity, and injecting resin into the cavity to make the mold. This avoids issues like instability when using the full electroformed part. The mold can then be used to create patterned sheets by filling the recessed areas with a polymer solution, drying, and releasing the sheet.

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Resin mold for forming a sharp, detailed pattern on the surface of a molding material like concrete. The mold has a pattern forming portion to press the material and form the pattern, and a lower hardness dam portion projecting from the end of the pattern forming portion. The dam dams the material from the pattern side to prevent escaping or scattering. The dam's lower hardness compared to the pattern forming portion allows higher pressure on the pattern area. This prevents vague outline issues when the dam compresses.

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Method for producing a mold with concave patterns and a method for producing patterned sheets using the mold. The mold production method involves fixing an electrocasting mold with needle-shaped patterns between a first mold and a second mold using a suction plate. Resin is injected into the cavity formed by the molds to create a mold with the desired concave patterns. This allows producing molds with intricate concave patterns without damaging the electrocasting mold. The mold can then be used to produce patterned sheets by filling it with a polymer solution, drying it, and removing the sheet.

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Imprint method and apparatus for transferring fine patterns from a mold to a substrate without deformation issues. The method involves pressing the mold against the substrate with the mold's outer edge also pressed against a separate member. This prevents warping of the mold during transfer due to thermal expansion. The apparatus has separate mold and substrate holders with a third member that contacts the mold's outer edge during pressing.

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A method to manufacture decorative articles using a silicone mold instead of multiple copper molds. The method involves creating a metal mold with recesses, filling it with silicone to make a mold with protrusions and grooves, then filling the silicone mold with a first material to form a base with decorating recesses matching the protrusions. Finally, filling the decorating recesses with a second material to create decorative elements in the base. This reduces the number of molds needed compared to copper molds, eliminating many of the environmental issues associated with plastic decorative articles.

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A method for manufacturing decorative articles using a reusable metal mold and silicone rubber molds to reduce environmental impact and lower production costs compared to traditional methods using disposable copper molds. The method involves preparing a metal mold with recesses, filling it with silicone rubber to create a mold with protrusions and grooves, then using that silicone mold to make the base. Decorative elements are then filled into the base's recesses and cured to complete the decorative article. This allows reusing the metal mold and silicone molds multiple times without disposal, versus disposing copper molds after each use. The silicone rubber mold material also enables recyclability compared to traditional plastic molds.

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A method to set patterns or text on objects with convex bumps that prevents the pattern from wearing off and improves durability. The method involves coating the bottom surfaces of the bumps with a flexible material like rubber or adhesive. This material provides a surface for the pattern to adhere to, preventing it from wearing off when the object is used. By coating the bottoms of the bumps, the pattern is protected from contact with surfaces like the ground or user's feet. This allows the pattern to last longer compared to directly printing on the bumps.

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