Highly functional hydrophilization film is a thin film (thickness: about 1 μm) that makes the surface of metal products hydrophilic. Hydrophilic treatment of the surface of an air conditioner heat exchanger allows the dew condensation water generated during air conditioning to spread across the surface of the heat exchanger. This keeps the air flow in good condition and contributes to energy conservation. Hydrophilic treatment can also impart functionality to maintain a comfortable living environment, such as low odor. 　Furthermore, we have advanced our hydrophilization technology, which has been refined through many years of operations, and succeeded in developing hydrophilic water sliding technology to ensure both hydrophilicity and good drainage performance, which were previously considered to be difficult to attain at the same time. The use of this film in heat exchangers can solve the problem of frost and ice adhering to the surface and can increase the energy efficiency of freezers, refrigerators, and air conditioners.

Demand for air conditioners, freezers and refrigerators will continue to increase globally. The International Energy Agency (IEA) reports that energy demand for air conditioners will triple by 2050.*1 The energy problem is one of the major social issues. Our highly functional hydrophilization technology is expected to contribute to realizing a sustainable society as a measure to reduce energy consumption. We help achieve a pleasant living environment by offering added value, such as contamination resistance and low odor.

*1: The Future of Cooling, OECD/IEA 2018