Abstract: A cap device for scalp care is provided. The cap device includes an interior cover, an exterior cover coupled to the interior cover, a substrate, and a blower. The interior cover covers the scalp, and has emitting holes for emitting air. The exterior cover defines an air flow passage along the interior cover, and has a vent hole for sucking air. The substrate is coupled to the interior cover in the air flow passage to cover an outer surface of the interior cover. The substrate has laser diodes, infrared ray and red light emitting diodes, and through holes corresponding to the emitting holes. The blower communicates with the air flow passage at an upper end of the interior cover. The blower sucks air through the vent hole and emits the air to the scalp through the emitting holes via the air flow passage.

Abstract: A liquid chemical applicator used for scalp care is provided. The liquid chemical applicator includes a container accommodating liquid chemical, an inner cap coupled to the container, and an outer cap rotatably and movably coupled to the inner cap. The inner cap includes a bush portion coupled to an outlet hole of the container along a central axis of the outlet hole. The outer cap includes a plug portion blocking and opening the bush portion, and further discharges the liquid chemical introduced through the bush portion. The outer cap blocks or opens the bush portion by rotation in first and second rotation directions centered on the central axis and by movement in first and second movement directions along the central axis.

Abstract: A cap device for scalp care is provided. The cap device includes an interior cover, an exterior cover coupled to the interior cover, a substrate, and a blower. The interior cover covers the scalp, and has emitting holes for emitting air. The exterior cover defines an air flow passage along the interior cover, and has a vent hole for sucking air. The substrate is coupled to the interior cover in the air flow passage to cover an outer surface of the interior cover. The substrate has laser diodes, infrared ray and red light emitting diodes, and through holes corresponding to the emitting holes. The blower communicates with the air flow passage at an upper end of the interior cover. The blower sucks air through the vent hole and emits the air to the scalp through the emitting holes via the air flow passage.