Patent ID: 8388589

Claim:
A pet sheet comprising: a backsheet; a liquid-permeable topsheet; a liquid absorbent layer which is smaller than the backsheet and disposed between the backsheet and the topsheet, the backsheet extending beyond the liquid absorbent layer to provide side regions outside the liquid absorbent layer; a first hydrophilic sheet that is different from the topsheet provided above the entire liquid absorbent layer and above the backsheet in the side regions; and a second hydrophilic sheet provided below the liquid absorbent layer and in direct contact with the backsheet, said second hydrophilic sheet being folded back against a top surface of the liquid absorbent layer to cover side portions of the liquid absorbent, the folded back portion of the second hydrophilic sheet being in direct contact with said first hydrophilic sheet, wherein the topsheet is provided above the first hydrophilic sheet and the entire liquid absorbent layer, and wherein said pet sheet is configured to permit passage of fluid through said first hydrophilic sheet to the liquid absorbent layer.