National Institute of Advanced Industrial Science and Technology

Dainichiseika Color & Chemicals Mfg. Co., Ltd.

Qiying Chen

Junji Tominaga

Norio Tanaka

Ichiro Ueno

Takashi Hiraga

Koji Tsujita

Hiromitsu Yanagimoto

Nobufumi Atoda

Tetsuo Moriya

N Dainichiseika C & Chem Mfg Co Ltd Tanaka

Koji Victor Company Of Japan Ltd Tsujita

H Dainichiseika C & Mfg Co Ltd Yanagimoto

Ichiro Ictor Company Of Japan Ltd Ueno

An organic compound having an affinity for a resin of a molded resin article and sublimation properties is allowed to penetrate/disperse into the surface of the molded resin article, thereby modifying and/or coloring a resin surface layer. The molded resin article and the organic compound having the affinity for the resin and the sublimation properties are put into a tightly closable container, and the pressure and the temperature in the container are adjusted to place them in a saturated sublimation pressure state of the organic compound, whereby a vapor of the organic compound is uniformly deposited on the surface of the molded resin article and it further penetrates/disperses into the resin surface layer, and in consequence, the resin surface layer can be modified and/or colored. In addition, the modification of the resin surface layer permits imparting a function thereto.

Method of modifying surface layer of molded resin and apparatus for modifying surface layer of molded resin

Modification method of surface layer of molded resin article, and modification apparatus of surface layer of molded resin article

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Tsukuba, Japan

Qiying Chen