Provided are a binder useful for making sheets processed to effectively prevent misfeeds, a sheet manufacturing apparatus capable of desirably manufacturing sheets processed to effectively prevent misfeeds, a sheet manufacturing method, and a sheet processed to effectively prevent misfeeds. The binder for binding fiber to make sheets includes resin; and polyhydric alcohol that is a solid at room temperature and changes to liquid phase when heated. The content of polyhydric alcohol to 100 parts by weight resin is greater than or equal to 0.1 parts by weight and less than or equal to 20 parts by weight polyhydric alcohol.

Provided are a binder useful for making sheets processed to effectively prevent misfeeds, a sheet manufacturing apparatus capable of desirably manufacturing sheets processed to effectively prevent misfeeds, a sheet manufacturing method, and a sheet processed to effectively prevent misfeeds. The binder for binding fiber to make sheets includes resin; and polyhydric alcohol that is a solid at room temperature and changes to liquid phase when heated. The content of polyhydric alcohol to 100 parts by weight resin is greater than or equal to 0.1 parts by weight and less than or equal to 20 parts by weight polyhydric alcohol.

Prepreg obtained from a decor base paper impregnated with a formaldehyde-free impregnating resin solution, whereby a hydrophobic coating is applied onto at least one side of the prepreg, and decorative film or decorative coating material containing the prepreg according to the invention.

Prepreg obtained from a decor base paper impregnated with a formaldehyde-free impregnating resin solution, whereby a hydrophobic coating is applied onto at least one side of the prepreg, and decorative film or decorative coating material containing the prepreg according to the invention.

A fiber body forming method includes a step of defibrating a raw material containing fibers to form a defibrated material; a step of depositing the defibrated material to form a web; a step of applying a liquid containing a thermoplastic resin which binds the fibers to the web; and a step of heating the web to which the liquid is applied to form a fiber body, and in the method described above, the fiber body has a storage elastic modulus of 600 MPa or more at 100 C. and a storage elastic modulus of 400 MPa or more at 150 C.

A fiber body forming method includes a step of defibrating a raw material containing fibers to form a defibrated material; a step of depositing the defibrated material to form a web; a step of applying a liquid containing a thermoplastic resin which binds the fibers to the web; and a step of heating the web to which the liquid is applied to form a fiber body, and in the method described above, the fiber body has a storage elastic modulus of 600 MPa or more at 100 C. and a storage elastic modulus of 400 MPa or more at 150 C.

A sheet manufacturing apparatus according to the invention has a mixing unit that mixes fiber and resin powder in air; and a sheet forming unit that forms a sheet by laying and heating the mixture mixed by the mixing unit; the grindability index of the resin contained in the resin powder being 0.8 or less.

A sheet manufacturing apparatus according to the invention has a mixing unit that mixes fiber and resin powder in air; and a sheet forming unit that forms a sheet by laying and heating the mixture mixed by the mixing unit; the grindability index of the resin contained in the resin powder being 0.8 or less.

The invention relates to a method for manufacturing a foam-formed cellulosic fibre-material comprising coarse cellulosic fibres a cellulose reinforcement fraction. Furthermore, the invention relates to a foam-formed cellulosic fibre-material, a cellulose bulk sheet for a packaging material and a laminated packaging material comprising the foam-formed cellulosic fibre-material.

The invention relates to a method for manufacturing a foam-formed cellulosic fibre-material comprising coarse cellulosic fibres a cellulose reinforcement fraction. Furthermore, the invention relates to a foam-formed cellulosic fibre-material, a cellulose bulk sheet for a packaging material and a laminated packaging material comprising the foam-formed cellulosic fibre-material.