Smith, Gambrell & Russell, LLP
Plastic substrate and method of manufacturing the same, and ink jet printer head and method of manufacturing the same
 There is provided a plastic base material having a reformed layer 2 formed on a plastic substrate 1 by reforming the surface layer thereof into a component containing fluorine at the ratio of the number of fluorine atoms to the number of carbon atoms, F/C, of 0.85 or more and 1.30 or less, and having highly durable water repellency and ink repellency. The method of manufacturing such a plastic base material comprises a step of reforming the surface of the plastic substrate 1 into a fluorine-containing carbon layer by imparting a specific energy to fluorine-containing plasma by applying an RF bias voltage to the plastic substrate 1 to form a surface having highly durable water repellency and ink repellency. A highly durable ink-jet printer that enables high-quality printing can be provided by the use of a head for an ink-jet printer fabricated by using this plastic base material. 
Matsushita Electric Industrial Co., Ltd.
B B B B B B C B Y B B B C
B41J B41J B41J B41J B41J B41J C08J B41J Y10T B41J B41J B41J C08J
inventional inventional inventional inventional additional inventional inventional inventional additional inventional inventional inventional inventional
Hiroyoshi Koichi Isamu Osamu
Tanaka Kotera Inoue Watanabe