Household tissue paper and hydrolysable sheet

A hydrolysable sheet comprising a multi-ply base paper sheet that is substantially water-dispersible, the multi-ply base paper sheet containing pulp and a water-soluble binder and being impregnated with an aqueous chemical agent, wherein

• a basis weight of the multi-ply base paper sheet is 30 gsm to 150 gsm,
• a content of the water-soluble binder increases towards a front surface and/or a back surface,
• first embossments and second embossments, arranged around the first embossments, are formed on an entire surface, a shape of a protruding part of each of the second embossments differing from a shape of a protruding part of each of the first embossments,
• the hydrolysable sheet is obtained by impregnating the multi ply base paper sheet, to which a water-soluble binder is added, with a chemical solution,
• a compounding ratio of softwood pulp to hardwood pulp is less than 1/1,
• the content of the water-soluble binder increases towards the front surface and the back surface,
• the chemical solution includes a cross-linking agent that causes the water-soluble binder to initiate a cross-linking reaction and a sterilizing agent, and
• the multi ply base paper sheet is impregnated with the chemical solution at 150% to 300% by weight with respect to a weight of the base paper sheet.