Abstract: Disclosed are a vacuum suction nozzle for improving vacuum suction performance and a vacuum suction apparatus including the same. The nozzle includes blade portions extending from both sides thereof so as to reduce a gap occurring between the nozzle and an outer skin material for a vacuum insulation panel (VIP) or other vacuum wrapping paper when the outer skin material or vacuum wrapping paper is sealed, thereby minimizing the occurrence of a leak and thus enabling efficient vacuum suction. Further, the nozzle achieves efficient vacuum suctioning by ensuring a suction channel inside the vacuum insulation panel (VIP) or other vacuum wrapping paper through a protrusion extending to the front of the nozzle.

Abstract: A coating film to prevent a conspicuous fingerprint has a water contact angle of no less than 60° so that most of water contained in fingerprints on the coating film evaporates without forming a layer adsorbed on the coating film. Further, the coating film has lipophilicity and has a diiodomethane contact angle of no more than 45° so that the coating film exhibits enhanced affinity to fingerprints, which primarily contain oily components.

Abstract: Disclosed is a refrigerator including a vacuum insulation panel. The vacuum insulation panel includes a core material, a covering material disposed outside the core material to form an accommodation space in which the core material is accommodated and a first adsorbent disposed in the accommodation space to be activated at a temperature higher than room temperature and to remove at least one of gases and water present in the accommodation space.

Abstract: Disclosed are a vacuum insulation material having a structure from which a folding process can be removed, a vacuum insulation material manufacturing method, and a refrigerator including the vacuum insulation material. The vacuum insulation material comprises: a core material; a first outer cover material disposed at the outside of the core material; a second outer cover material coupled to the first outer cover material so as to form an accommodation space in which the compressed core material is accommodated; and coupling parts provided at edges of the first outer cover material and the second outer cover material, wherein the length of the coupling part is 10-30 mm.

Abstract: Disclosed are a vacuum suction nozzle for improving vacuum suction performance and a vacuum suction apparatus including the same. The nozzle includes blade portions extending from both sides thereof so as to reduce a gap occurring between the nozzle and an outer skin material for a vacuum insulation panel (VIP) or other vacuum wrapping paper when the outer skin material or vacuum wrapping paper is sealed, thereby minimizing the occurrence of a leak and thus enabling efficient vacuum suction. Further, the nozzle achieves efficient vacuum suctioning by ensuring a suction channel inside the vacuum insulation panel (VIP) or other vacuum wrapping paper through a protrusion extending to the front of the nozzle.

Abstract: Disclosed herein are a vacuum insulation panel having an improved structure which may improve durability by minimizing a folding process, and a refrigerator including the same. The vacuum insulation panel includes a core material, a first outer skin material that is arranged to form an outer surface of the core material, a second outer skin material that has a gap and forms the other outer surface of the core material, and is disposed to face the first outer skin material, and a third outer skin material that is provided to connect the first outer skin material and the second outer skin material and to be variable in accordance with the gap.

Abstract: Disclosed is a refrigerator including a vacuum insulation panel. The vacuum insulation panel includes a core material, a covering material disposed outside the core material to form an accommodation space in which the core material is accommodated and a first adsorbent disposed in the accommodation space to be activated at a temperature higher than room temperature and to remove at least one of gases and water present in the accommodation space.

Abstract: A coating film to prevent a conspicuous fingerprint has a water contact angle of no less than 60° so that most of water contained in fingerprints on the coating film evaporates without forming a layer adsorbed on the coating film. Further, the coating film has lipophilicity and has a diiodomethane contact angle of no more than 45° so that the coating film exhibits enhanced affinity to fingerprints, which primarily contain oily components.

Abstract: A coating film to prevent a conspicuous fingerprint has a water contact angle of no less than 60° so that most of water contained in fingerprints on the coating film evaporates without forming a layer adsorbed on the coating film. Further, the coating film has lipophilicity and has a diiodomethane contact angle of no more than 45° so that the coating film exhibits enhanced affinity to fingerprints, which primarily contain oily components.

Abstract: Disclosed are a vacuum insulating material having an improved structure as to enhance insulation and durability and a refrigerator having the same. The vacuum insulating material includes a core material, a first envelope disposed at an outer side of the core material, a blocking layer disposed between the core material and the first envelope, and a second envelope coupling to the first envelope to form an accommodating space in which the core material and the blocking layer are accommodated, wherein the blocking layer is welded or adhered to the first envelope to form an integral unit with the first envelope.

Abstract: Disclosed herein are a vacuum insulation panel having an improved structure which may improve durability by minimizing a folding process, and a refrigerator including the same. The vacuum insulation panel includes a core material, a first outer skin material that is arranged to form an outer surface of the core material, a second outer skin material that has a gap and forms the other outer surface of the core material, and is disposed to face the first outer skin material, and a third outer skin material that is provided to connect the first outer skin material and the second outer skin material and to be variable in accordance with the gap.

Abstract: A vacuum heat insulating material having an improved structure to prevent the heat bridge phenomenon while improving the durability thereof, and a refrigerator having the same, the vacuum heat insulating material including a core material in a vacuum state, a sealing layer surrounding the core material, an inner layer covering the sealing layer, and having a first side and a second side connected to the first side, a protective layer located at an outside of the inner layer, a first blocking layer having at least one portion located between the first side of the inner layer and the protective layer, and a second blocking layer having at least one portion located between the second side of the inner layer and the protective layer.

Abstract: A vacuum insulation panel includes a core material, a first sheathing material disposed outside the core material, and a second sheathing material having different thermal conductivity from the first sheathing material, the second sheathing material being coupled to the first sheathing material to form a space to receive the core material.

Abstract: Provided herein is a gas barrier film having excellent flexibility and an excellent gas barrier characteristic at the same time and a refrigerator having the same. Provided herein is a method of manufacturing a gas barrier film. The gas barrier film includes an organic-inorganic mixed layer on which a first organic-inorganic hybrid layer including a first organic part and a first inorganic part and an aluminum oxide layer are laminated. The gas barrier film also includes a second organic-inorganic hybrid layer including a second organic part and a second inorganic part. The gas barrier film further includes a substrate on which the organic-inorganic mixed layer and the second organic-inorganic hybrid layer are laminated.

Abstract: A vacuum insulation panel includes a core material, a first sheathing material disposed outside the core material, and a second sheathing material having different thermal conductivity from the first sheathing material, the second sheathing material being coupled to the first sheathing material to form a space to receive the core material.

Abstract: A vacuum heat insulating material having an improved structure to prevent the heat bridge phenomenon while improving the durability thereof, and a refrigerator having the same, the vacuum heat insulating material including a core material in a vacuum state, a sealing layer surrounding the core material, an inner layer covering the sealing layer, and having a first side and a second side connected to the first side, a protective layer located at an outside of the inner layer, a first blocking layer having at least one portion located between the first side of the inner layer and the protective layer, and a second blocking layer having at least one portion located between the second side of the inner layer and the protective layer.

Abstract: A heat exchanger includes a refrigerant pipe through which a refrigerant flows, and a plurality of fins coupled to an outer circumference surface of the refrigerant pipe, wherein each fin includes a first region disposed upstream with respect to an air flow direction, and a second region which forms a boundary with the first region and is disposed downstream with respect to the air flow direction, and wherein the first region and the second region have different surface energies in order to prevent formation of condensation water on the fin.

Abstract: A coating film to prevent a conspicuous fingerprint has a water contact angle of no less than 60° so that most of water contained in fingerprints on the coating film evaporates without forming a layer adsorbed on the coating film. Further, the coating film has lipophilicity and has a diiodomethane contact angle of no more than 45° so that the coating film exhibits enhanced affinity to fingerprints, which primarily contain oily components.

Abstract: A fusing unit which includes a pressure member to be elastically supported on an outer peripheral surface of a heating roller while coming into surface contact with the outer peripheral surface. The pressure member serves to grind the outer peripheral surface of the heating roller, to maintain a surface roughness of the heating roller at a predetermined level or less.

Abstract: A polymer electrolyte composition for a dye-sensitized solar cell, a polymer electrolyte, a dye-sensitized solar cell employing the polymer electrolyte, and a method for preparing the same. The polymer electrolyte composition for a dye-sensitized solar cell includes: a mono-functional or multi-functional monomer having at least one ethylene glycol in a side chain; a photoinitiator; a lithium salt; and an organic solvent. The polymer electrolyte suppresses the volatilization of a redox electrolyte and provides stable photoelectrochemical properties against environmental changes, such as a rise in the external temperature of a solar cell. The dye-sensitized solar cell includes: first and second electrodes facing each other; a dye-adsorbed porous film interposed between the first and second electrodes; and the polymer electrolyte interposed between the first and second electrodes. The dye-sensitized solar cell has a high voltage and high photoelectric conversion efficiency.