Cartridge

A cartridge that is detachably mounted in a liquid ejecting apparatus including a liquid introduction portion, the cartridge comprising:

• a liquid accommodating portion for accommodating a liquid;
• a liquid supply portion having a central axis and a supply portion flow path that communicates with the liquid accommodating portion;
• a valve seat arranged on the supply portion flow path and having a valve seat insertion port into which the liquid introduction portion is inserted;
• a valve body for closing the valve seat insertion port, arranged on the supply portion flow path, the valve body being located upstream of the valve seat in a circulating direction of the liquid in the supply portion flow path when the liquid is supplied;
• a biasing member arranged on the supply portion flow path and biasing the valve body toward the valve seat;
• a cap located downstream of the valve seat in the circulating direction;
• and
• a liquid absorbing material in contact with the cap, wherein
• the cap has
• a first surface facing the valve seat,
• a second surface facing the first surface and in contact with the liquid absorbing material,
• a cap insertion port formed over the first surface and the second surface, into which the liquid introduction portion is inserted,
• a groove formed in the first surface and facing the valve seat, the groove extending in a radially direction of the central axis, and
• a hole formed over the first surface and the second surface and coupled to the groove, and
• the hole is in contact with the liquid absorbing material.