Sheet manufacturing apparatus and sheet manufacturing method

A sheet manufacturing apparatus comprising:

• an accumulating unit including a sieve through which a defibrated product passes in a dry manner to form a web;
• a moisture adding unit that is disposed downstream relative to the accumulating unit in a transfer direction of the web and disposed so as to face one surface of the formed web, and that adds moisture to the formed web such that a moisture content of the web is equal to or more than 12 mass % and equal to or less than 40 mass %;
• and a heating unit disposed downstream relative to the moisture adding unit in the transfer direction of the web, the heating unit having a first heater that comes in contact with the one surface of the web and a second heater that comes in contact with another surface of the web, and the first and second heaters being configured to heat the web with the web being located between the first and second heaters, while a surface temperature of the first heater is higher than a surface temperature of the second heater, and while a difference between the surface temperature of the first heater and the surface temperature of the second heater is equal to or more than 10° C. and equal to or less than 50° C. when compared to respective first and second heaters being at the same surface temperature.