Ink container and recording apparatus

An ink container that is configured to be attachable to and detachable from an apparatus main body of a recording apparatus, the ink container comprising:

• an ink storage portion that has flexibility and that is configured to store ink in an interior thereof, the ink storage portion including:
• (1) a first surface,
• (2) a second surface that is opposite to the first surface, and
• (3) a first side shared by the first surface and the second surface;
• and
• an ink supply portion that is provided at the first side of the ink storage portion and that is configured to supply the ink stored in the ink storage portion to the apparatus main body,
• wherein a seal portion between the first surface and the second surface is provided at the first side of the ink supply portion,
• wherein the seal portion includes
• a first seal portion that has a rectangular shape parallel to the first side, and
• a second seal portion that is disposed between the first seal portion and the ink supply portion and formed continuously with the first seal portion in a direction parallel to the first side, the second seal portion having a mountain-like shape protruding toward the interior of the ink storage portion, and
• wherein, when a maximum width of the mountain-like shape is denoted by W1 [mm], an apex of the mountain-like shape of the second seal portion is positioned such that a distance W2 [mm] from the ink supply portion in the direction parallel to the first side is less than W1/2.

A recording apparatus comprising:

• an apparatus main body;
• and
• an ink container that is configured to be attachable to and detachable from the apparatus main body,
• wherein the ink container includes
• an ink storage portion that has flexibility and that is configured to store ink in an interior thereof, the ink storage portion including:
• (1) a first surface,
• (2) a second surface that is opposite to the first surface, and
• (3) a first side shared by the first surface and the second surface, and
• an ink supply portion that is provided at the first side of the ink storage portion and that is configured to supply the ink stored in the ink storage portion to outside,
• wherein a seal portion between the first surface and the second surface is provided at the first side of the ink supply portion,
• wherein the seal portion includes
• a first seal portion that has a rectangular shape parallel to the first side, and
• a second seal portion that is disposed between the first seal portion and the ink supply portion and formed continuously with the first seal portion in a direction parallel to the first side, the second seal portion having a mountain-like shape protruding toward the interior of the ink storage portion, and
• wherein, when a maximum width of the mountain-like shape is denoted by W1 [mm], an apex of the mountain-like shape of the second seal portion is positioned such that a distance W2 [mm] from the ink supply portion in the direction parallel to the first side is less than W1/2.