Patent ID: 7847145

Claim:
A body fluid absorbent article, wherein an absorbent is provided in a body fluid absorbent portion and includes a body fluid absorption and holding function and a shrinkage function when contact with a body fluid; an absorption control, layer is provided on said absorbent, and a liquid impermeable range of which is reduced whenever a body fluid is excreted; said absorbent includes a fixed portion fixed to the article, and a free portion that is not fixed to the article, said absorption control layer is reduced from a fixed portion side of said absorbent toward a free portion side thereof whenever the body fluid is excreted; said absorbent is elongated and includes said fixed portion on one end thereof, and said absorption control layer is a cylindrical member including the liquid impermeable range continuous in a circumferential direction and a longitudinal direction, said absorbent being inserted into an inner cavity of said absorption control layer.