Microstructured film use as components in micro reaction systems, filtration media, optical element, matting layer, reducer or diffraction filter, is produced by printing micrometer size fluid structures using inkjet-printer

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This patent describes a method for manufacturing microstructured films by printing micrometer-sized fluid structures using an inkjet printer, then coating and hardening the structures. The resulting films contain concave microstructures and can be used as components in various systems such as microreactors, filtration membranes, and optical elements.

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• As microreactor components for chemical processing or analysis at microscale
• In filtration media to improve selectivity or flow rates
• As optical elements, such as diffusers, diffraction filters, or matting layers in cameras and lighting devices
• For producing structured surfaces in biomedical devices
• Integration with lab-on-a-chip devices for miniaturized assays

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• Enables precise and customizable microstructure fabrication using widely available inkjet printing technology
• Cost-effective method compared to traditional microfabrication techniques
• Versatile: applicable to a range of industries including filtration, optics, and chemical analysis
• Facilitates rapid prototyping and small-scale production
• Allows coating and protecting microstructures for enhanced durability and stability

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Inventors & Applicants

Patent Abstract

The microstructured film is produced by printing micrometer size fluid structures (4) using an inkjet-printer (1), subsequent extra shifts with a coating liquid, followed by a hardened coating fluid. The micro structured film (9) is made of concave microstructures (7) in a hardened material. The average thickness of the micro structured film is greater than the dimension of printed fluid structures. The printed fluid structures are completely coated from the hardened material. An independent claim is also included for a method for producing a micro structured film, which involves utilizing a concave microstructure in hardened material.