Method for forming composite vapor-deposited film having varied film composition at initial and final stages of vapor deposition, composite vapor-deposition material for producing the same, and method for producing the composite vapor-deposition material

摘要

The composite deposition film suitable for deposition on a fluorescent screen, such as color television kinescope, one side of the vapor deposition film has a high light reflection factor, the other side is open composite deposited film forming method having a property of absorbing light and a deposition layer of the composite It discloses a composite material suitable for the vacuum evaporation deposition. The deposited material has a composite aluminum envelope with a low vapor pressure of the metal / semi-metal compound powder in the core region of the envelope. The low vapor pressure of the metal / semi-metal compound powder is dispersed in the core region is maintained at the aluminum. The vacuum vapor deposition carried out using the composite evaporation material is to produce nearly 100% of an aluminum composition in the deposited initially, then even if heat treatment is applied comprising a low vapor pressure metal / semi-metal compound powder that is not diffused into the aluminum layer formed on the deposition end to form a layer. Thus, a high reflection layer, the light reflection factor can be maintained.