Abstract: An air mobility device improves propulsion due to the Coand? effect when flying so as to increase a flying range and reduces noise when flying.

Abstract: The present invention relates to sheets. The sheets include an adhesive layer, a base layer formed on the adhesive layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. Each of the adhesive layer and the resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.

Abstract: The present invention relates to panels. The panels include a panel layer and a printed layer formed on the panel layer. The panel layer includes a polylactic acid (PLA) resin. The panels are environmentally friendly and biodegradable.

Abstract: The present invention relates to sheets. The sheets include a base layer, a foamed layer formed on the base layer, a printed layer formed on the foamed layer, and a partially foamed layer formed on the printed layer. At least one layer of the foamed layer and the partially foamed layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.

Abstract: The present invention relates to sheets. The sheets include a base layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. The resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.

Abstract: The present invention relates to panels. The panels include a panel layer and a printed layer formed on the panel layer. The panel layer includes a polylactic acid (PLA) resin. The panels are environmentally friendly and biodegradable.

Abstract: The present invention relates to sheets. The sheets include an adhesive layer, a base layer formed on the adhesive layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. Each of the adhesive layer and the resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.

Abstract: The present invention relates to sheets. The sheets include a base layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. The resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.

Abstract: The present invention relates to sheets. The sheets include a base layer, a foamed layer formed on the base layer, a printed layer formed on the foamed layer, and a partially foamed layer formed on the printed layer. At least one layer of the foamed layer and the partially foamed layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.

Abstract: The present invention provides an eco-friendly foaming sheet. More particularly, the eco-friendly foaming sheet is fabricated using a biodegradable resin composition on a substrate, wherein the biodegradable resin composition is applied to the substrate sheet, a print layer is formed thereon, and the treated sheet is subjected to foaming. According to the present invention, without processes of preparing a sheet and foaming using a biodegradable resin, the biodegradable resin layer is directly applied to a substrate sheet as a subject to be used and foamed while forming a print layer, in addition, a chemical foaming agent and an eco-friendly plasticizer used together with the biodegradable resin are specifically defined to ensure desired flexibility, thereby fabricating an eco-friendly foaming sheet with high productivity.

Abstract: Disclosed are a material for advertisement and a method for manufacturing the same. The material for advertisement includes a surface film layer, a pressure-sensitive adhesive layer and a release layer stacked in sequence, in which the surface film layer is composed of a biodegradable film layer containing 5 to 40 wt % of a biodegradable polymer and 95 to 60 wt % of an aliphatic polyester. The material including the biodegradable film layer can be used for print advertisement to be discarded after being used for a short period of time, and has biodegradability of 60% or more as compared with cellulose within six months when discarded, so that a toxic environmental hormone due to polyvinylchloride (PVC) is not emitted, and the environment is protected, thereby being very friendly toward humans and the earth.

Abstract: The present invention relates to a banner product capable of being used for hanging among the outdoor advertisement shapes. Therefore, the present invention provides a sheet for advertisement comprising a polyvinyl chloride resin as a surface layer, a polyolefin fabric or polyolefin film formed under the surface layer, and an additional adhesive layer formed between the above layers to ensure the adhesiveness. Thereby, the sheet for advertisement has excellent printability, and the use and handling of the sheet for advertisement is convenient due to reducing the total weight of the product.

Abstract: The present invention is to improve application of an adhesive sheet by imparting air vent channels to an adhesive surface of the sheet. According to the present invention, air vent channels are formed to have various heights and widths so that the respective air vent channels can be vanished at certain time intervals, thereby facilitating removal of air and increasing an adhesion area to shorten time required for obtaining a designed adhesive force, and the increase of the adhesion area improves smoothness between an adhesive surface and a target surface so that patterns of the air vent channels cannot emerge on a front surface of the sheet.