Abstract: A web forming apparatus includes a drum portion and a second web forming unit. The drum portion has an accommodating chamber capable of accommodating fragments, and accommodating powder supplied from a first supplying unit. The second web forming unit forms a second web by letting a mixture containing the fragments and the powder falling from the drum portion accumulate. The first supplying unit includes a storing chamber for storing the powder and an outlet portion provided below the storing chamber. The powder goes out of the storing chamber via the outlet portion. The drum portion has meshes formed in a net demarcating the accommodating chamber. The powder is able to pass through the meshes. The outlet portion is provided vertically over the net of the drum portion.

Abstract: A heat insulating, heat storing, and heat generating material includes first fibers having a function of generating heat through moisture absorption, second fibers having a diameter smaller than a diameter of the first fibers, and a binding material binding together the first fibers, binding together the second fibers, and binding together the first fibers and the second fibers. The binding material contains a thermoplastic resin.

Abstract: Provided is a mushroom cultivation medium that easily maintains its shape and that is easy to handle. The mushroom cultivation medium includes cellulose fibers, a binder binding the cellulose fibers to each other, and wood chips mixed with the cellulose fibers.

Abstract: A method of manufacturing a cushioning material P includes a defibrating step of defibrating a cloth to produce fibers F in dry forming, a mixing step of mixing the fibers F with a bonding agent to produce a mixture, an accumulation step of accumulating the mixture in air to produce a web W, and a first forming step of pressurizing and heating the web W to form the web W.

Abstract: An accommodating body includes: a first accommodating body that has a first bottom portion; and a first buffering material that has a first pressure receiving surface coming into contact with an accommodated article accommodated in the first accommodating body and that has at least one first sheet-shaped web that contains fibers and a bonding material that bonds the fibers, and in which in the first sheet-shaped web, the fibers are oriented in a plane direction of the first sheet-shaped web, and the first buffering material is used in an orientation with which an end surface of the first sheet-shaped web serves as the first pressure receiving surface.

Abstract: A web forming apparatus includes a drum portion and a second web forming unit. The drum portion has an accommodating chamber capable of accommodating fragments, and accommodating powder supplied from a first supplying unit. The second web forming unit forms a second web by letting a mixture containing the fragments and the powder falling from the drum portion accumulate. The first supplying unit includes a storing chamber for storing the powder and an outlet portion provided below the storing chamber. The powder goes out of the storing chamber via the outlet portion. The drum portion has meshes formed in a net demarcating the accommodating chamber. The powder is able to pass through the meshes. The outlet portion is provided vertically over the net of the drum portion.

Abstract: A method for manufacturing a carbon fiber sheet includes a mixing section that mixes a plurality of carbon fibers with a binding material that binds the carbon fibers, a depositing section that deposits a mixture of the carbon fibers and the binding material, and a forming section that forms a fiber sheet by heating a deposit deposited by the depositing section. The forming section includes a heating portion.

Abstract: A processing apparatus includes a powder material supply portion that supplies a powder material containing a first particle group consisting of a plurality of first particles, and a second particle group consisting of a plurality of second particles and having an average particle diameter larger than that of the first particle group, to a fiber-containing material containing a fiber during or after defibrating, and a powder material removing portion that removes at least a portion of the powder material from the fiber-containing material supplied with the powder material. It is preferable that the processing apparatus include a defibrating portion that defibrates the fiber-containing material on an upstream side of the powder material supply portion.

Abstract: A method for manufacturing an injection molding material includes a mixing step of mixing in a gas atmosphere, a fiberized cellulose; a hydrophobic biodegradable material; and a starch.

Abstract: A method for manufacturing an injection molding material includes: an imparting step of imparting a water-soluble high molecular weight material to a cellulose raw material; a defibrating step of defibrating the cellulose raw material to which the water-soluble high molecular weight material is imparted to form a defibrated material; and a mixing step of mixing the defibrated material with a starch in a gas atmosphere.

Abstract: A sheet-like filter includes a first fiber that is mainly composed of polylactic acid, and a second fiber that is mainly composed of polylactic acid and has a core portion and a cover layer covering the core portion, in which the cover layer functions as a binder for fusing the first fiber and the second fiber. In addition, when a melting point of the core portion is denoted by Tm1 and a melting point of the cover layer is denoted by Tm2, it may be Tm2<Tm1.

Abstract: A starch composite for binding fibers includes starch particles which are first particles and second particles containing a hydrophobic material having an affinity for the starch particles, which are the first particles. The weight-average size of the second particles is less than the weight-average size of the first particles and the outer surfaces of the first particles are covered by the second particles.

Abstract: An accommodating body includes: a first accommodating body that has a first bottom portion; and a first buffering material that has a first pressure receiving surface coming into contact with an accommodated article accommodated in the first accommodating body and that has at least one first sheet-shaped web that contains fibers and a bonding material that bonds the fibers, and in which in the first sheet-shaped web, the fibers are oriented in a plane direction of the first sheet-shaped web, and the first buffering material is used in an orientation with which an end surface of the first sheet-shaped web serves as the first pressure receiving surface.

Abstract: A speaker diaphragm includes a cone formed of a first material including first fibers derived from a plant and a first resin for binding the first fibers together, and an edge portion which is positioned at an outer peripheral portion of the cone and formed of a second material including a second resin, in which the cone and the edge portion are integrally formed. In addition, at least one of the content and the composition of the first resin and the second resin is different.

Abstract: Provided is a fiber structure including: cellulose fiber disposed such that a main fiber orientation direction is a first direction; and a crosslinking material that binds a plurality of the cellulose fibers to each other, in which the first direction forms an angle of equal to or less than 45 degrees with respect to a direction of an external force applied from an outside to a bottom surface.

Abstract: A processing device has a fibrillation portion fibrillating fiber-containing materials containing fibers in the air, a particle supply portion supplying particles having Mohs' hardness of 2 or more and 5 or less to the fiber-containing materials during or after the fibrillating at the fibrillation portion for collision of the particles and the fiber-containing materials, and a particle removal portion removing the particles from the fiber-containing materials to which the particles are supplied.

Abstract: Provided is a processing device which includes a fluffing section for fluffing fibers contained in a sheet-like material, the fibers being at least near a surface of the sheet-like material, and a particle supplying section for supplying particles having Mohs hardness of 2 to 5 to the fluffed fibers. In addition, in such processing device, the particle supplying section preferably has an ejecting portion for ejecting the particles.

Abstract: A speaker diaphragm according to the present disclosure includes a cone formed of a first material including first fibers derived from a plant and a first resin for binding the first fibers together, and an edge portion which is positioned at an outer peripheral portion of the cone and formed of a second material including a second resin, in which the cone and the edge portion are integrally formed. In addition, at least one of the content and the composition of the first resin and the second resin is different.

Abstract: A vibration plate manufacturing device including: a defibration unit which defibrates a raw material including fibers; a mixing unit which mixes a binding material for binding the fibers to each other, to a defibrated material defibrated by the defibration unit; a second web formation unit which accumulates a mixture mixed by the mixing unit; and a molding unit which forms the second web accumulated in second web formation unit into a vibration plate by a molding process including pressing and heating.

Abstract: A processing device, a sheet manufacturing apparatus, a processing method, and a sheet manufacturing method enable quickly removing color material when color material is contained in a material containing fiber. A processing device has a defibrator configured to defibrate, in air, fibrous material containing fiber; and a particle supply device configured to supply particles of dry ice to the material containing fiber during defibration or after defibration. The material containing fiber contains color material; and the particles work to separate the color material for the fibers by colliding with the color material contained in the material containing fiber.