Ink-repellent member, inkjet head, method for manufacturing ink-repellent member, and method for manufacturing inkjet head

An ink-repellent member, comprising:

• a base including at least one selected from the group consisting of silicon oxide and tantalum oxide;
• and
• an ink-repellent film including a fluorine compound chemically bonded to the base via at least a siloxane bond,
• wherein the fluorine compound includes a fluorine compound A having a linear molecular structure and an average molecular weight of 1500 or more, and a fluorine compound B having a linear molecular structure and a smaller average molecular weight than the fluorine compound A,
• wherein the fluorine compound A has a siloxane structure only at one end of the linear molecular structure, and
• wherein the fluorine compound B has a siloxane structure only at one end of the linear molecular structure and is represented by structural formula (1):
• wherein:
• X is an OR group or a chloro group, and R is an alkyl group;
• and
• n is an integer of 0 or more.