A sheet manufacturing apparatus includes: a defibration unit that defibrates a raw material containing fibers in a gas atmosphere; and a sheet former that forms a sheet by using at least a part of defibrated substances obtained through a defibrating process performed by the defibration unit. The defibration unit and the sheet former are thermally blocked from each other.

A defibrating unit that defibrates a raw material including fibers in an atmosphere, an accumulating unit that discharges defibrated matter by rotating a drum unit in which a plurality of openings are formed, a second web forming unit that forms a second web by operating a mesh belt on which the defibrated matter is accumulated, a sheet forming unit that forms a sheet from the second web, a cutting unit that cuts the sheet into a preset size, and a control unit that executes a stop control with a cut operation of the cutting unit as a trigger in a case where an instruction to stop an apparatus is provided are included. In the stop control, the control unit stops operation of the defibrating unit after stopping rotation of the drum unit and movement of the mesh belt.

A defibrating unit that defibrates a raw material including fibers in an atmosphere, an accumulating unit that discharges defibrated matter by rotating a drum unit in which a plurality of openings are formed, a second web forming unit that forms a second web by operating a mesh belt on which the defibrated matter is accumulated, a sheet forming unit that forms a sheet from the second web, a cutting unit that cuts the sheet into a preset size, and a control unit that executes a stop control with a cut operation of the cutting unit as a trigger in a case where an instruction to stop an apparatus is provided are included. In the stop control, the control unit stops operation of the defibrating unit after stopping rotation of the drum unit and movement of the mesh belt.

A sheet manufacturing apparatus is supplied with a raw material including fibers and manufactures a sheet by processing the supplied raw material. The sheet manufacturing apparatus includes a control unit that displays a user interface in which raw material information related to the supplied raw material, manufacturing information related to the manufactured sheet, and processing information related to processing of the sheet are displayed.

A sheet manufacturing apparatus is supplied with a raw material including fibers and manufactures a sheet by processing the supplied raw material. The sheet manufacturing apparatus includes a control unit that displays a user interface in which raw material information related to the supplied raw material, manufacturing information related to the manufactured sheet, and processing information related to processing of the sheet are displayed.

An accumulating unit that discharges fibers by rotating a drum unit in which a plurality of openings are formed, a second web forming unit that forms a second web by operating a mesh belt, a sheet forming unit that forms a sheet from the second web, and a control unit that performs a start control for operating the accumulating unit and the second web forming unit from the stop state are included. In a case where the start control is performed from a state where the fibers are present in the drum unit, the control unit adjusts a thickness of the second web by controlling at least one of a timing at which rotation of the drum unit is initiated, a rotational speed of the drum unit, a timing at which movement of the mesh belt is initiated, and a movement speed of the mesh belt.

An accumulating unit that discharges fibers by rotating a drum unit in which a plurality of openings are formed, a second web forming unit that forms a second web by operating a mesh belt, a sheet forming unit that forms a sheet from the second web, and a control unit that performs a start control for operating the accumulating unit and the second web forming unit from the stop state are included. In a case where the start control is performed from a state where the fibers are present in the drum unit, the control unit adjusts a thickness of the second web by controlling at least one of a timing at which rotation of the drum unit is initiated, a rotational speed of the drum unit, a timing at which movement of the mesh belt is initiated, and a movement speed of the mesh belt.

A method of and an arrangement for adding at least one additional stock component to an approach flow system (30) of a fiber web machine by mixing the at least one additional stock component to a fibrous stock such that the stock flow is equalized (50) and the at least one additional stock component is introduced to the stock flow by injection mixing (80).

A fiber assembly-forming method includes providing a first feedstock containing fibers with a binding material bonding the fibers to each other, forming disintegrated matter by disintegrating the first feedstock provided with the binding material, depositing the disintegrated matter, and heating the deposited disintegrated matter.

A fiber assembly-forming method includes providing a first feedstock containing fibers with a binding material bonding the fibers to each other, forming disintegrated matter by disintegrating the first feedstock provided with the binding material, depositing the disintegrated matter, and heating the deposited disintegrated matter.