| 摘要 |
PROBLEM TO BE SOLVED: To provide a waste ink absorber having excellent permeability and retention.SOLUTION: A waste ink absorber 200 that absorbs waste ink has: a dense portion 210 having a high density; a sparse portion 220 having a lower density than that of the dense portion 210, and the sparse portion 220 locally has maximum portions 230 whose densities are higher than that of the sparse portion 220. The maximum portions 230 are distributed in nearly balanced manner so as not to be connected with each other. The sparse portion 220 exists around the maximum portions 230. |
