	US 11,987,054 B2
	Ink tube and inkjet printer
Masashi Seki, Sunto Shizuoka (JP)
Assigned to Toshiba Tec Kabushiki Kaisha, Tokyo (JP)
Filed by TOSHIBA TEC KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 16, 2021, as Appl. No. 17/202,639.
Claims priority of application No. 2020-047161 (JP), filed on Mar. 18, 2020.
Prior Publication US 2021/0291527 A1, Sep. 23, 2021
Int. Cl. B41J 2/165 (2006.01); B41J 2/17 (2006.01); B41J 2/175 (2006.01); C09D 5/16 (2006.01); C09D 183/08 (2006.01)

CPC B41J 2/1707 (2013.01) [B41J 2/1652 (2013.01); B41J 2/175 (2013.01); C09D 5/1675 (2013.01); C09D 183/08 (2013.01)]

19 Claims

1. An ink tube, comprising:

a flexible tube body; and

a liquid repellent film which coats an inner surface of the flexible tube body, the liquid repellent membrane comprising a fluorine compound having a perfluoroalkyl group of four or fewer carbon atoms and a binding moiety containing a silicon atom and a carbon atom, the binding moiety being covalently bonded directly to the inner surface of the flexible tube body, and the perfluoroalkyl group being at a terminal end of the fluorine compound opposite from an end of the binding moiety.