Ushio UV curing

  • 경화 및 접착
  • 기능성 소재
  • 에너지
  • 생물학 및 화학
  • 인쇄
  • 인쇄회로 기판 및 PKG
  • 액정 디스플레이
  • 반도체
UV-curing resins" are photosensitive agents that instantly harden, dry, or bond upon irradiation by ultraviolet light. Curing, drying, or bonding of materials coated with such resin is possible by irradiation with ultraviolet light of wavelength short enough to induce a chemical reaction. From its application in UV curing, drying, and bonding technology, this technique is referred by names such as "light hardening" and "UV curing." The practical application of UV curing has roots in its application to printing of seals and labels starting about 35 years ago. Since then, applications for UV curing have expanded into a wide variety of production fields, including hardening of paints and surface coatings, attachment of precision components such as semiconductors and optical components, and bonding of LCD panels, as well as in nanotechnology, biotechnology, fuel cells, and photovoltaic cells. How does

UV 경화 작업?
Matter is composed of molecules, which are combinations of atoms such as oxygen, hydrogen, carbon, and nitrogen. Ultraviolet light is capable of breaking the bonds that tie these atoms together. Once atoms have been broken loose, they naturally tend to form bonds with other atoms. Atoms that are left over then tend to form bonds with other atoms, and atoms that are still left over also go on to form bonds in a chain reaction that rearranges the atomic structure of the substance (a phenomenon called a light polymerization reaction). The resulting change in molecular structure of the plastic, rubber, etc., appears as changes in properties such as color and hardness. "Light curing," or "UV curing" takes advantage of this reaction by combining ultraviolet and resin that hardens when exposed to ultraviolet (light curing resin). The resin is initially in the form of liquid or paste, but instantaneously changes to solid by photopolymerization reaction upon exposure to ultraviolet light. This makes it possible to use the reaction to dry ink or to bond components together.