Abstract: A sheet for a laser printer includes a plurality of fibers, and a binding agent for binding the plurality of fibers, in which an abundance of the binding agent on a surface of the sheet is smaller than an abundance of the binding agent in a center in a thickness direction of the sheet.

Abstract: A method for defibrating a fiber body includes: a supply step of supplying a liquid to a fiber body containing fibers; and a defibrating step of defibrating the fiber body to which the liquid is supplied, and in the supply step, the liquid is supplied to the fiber body so that a rate in tensile strength of the fiber body immediately before defibrated in the defibrating step to the fiber body before the liquid is supplied thereto is 60.0% or less.

Abstract: A recording medium manufacturing apparatus includes at least one material supplying section which includes a storage unit which stores a fiber-containing material containing cellulose fibers and a resin, at least one carrying body which carries the fiber-containing material which is supplied from the material supplying section, a transfer-target body onto which the fiber-containing material which is carried by the carrying body is electrostatically transferred, and an after-treatment unit which performs an after-treatment on the fiber-containing material which is electrostatically transferred onto the transfer-target body.

Abstract: The present disclosure provides a sheet manufacturing binding material which includes a polyester obtained by a reaction between a polyvalent alcohol having a secondary hydroxyl group and a polybasic acid.

Abstract: A sheet is configured to have a first complex having a fiber and a fiber aggregation inhibitor integrally, a second complex having a fiber and a fiber aggregation inhibitor integrally, and a binding material which combines the first complex and the second complex and contains a resin.

Abstract: A sheet for a laser printer includes a plurality of fibers, and a binding agent for binding the plurality of fibers, in which an abundance of the binding agent on a surface of the sheet is smaller than an abundance of the binding agent in a center in a thickness direction of the sheet.

Abstract: A composite integrally includes a resin and a coagulation inhibitor, and is used to be mixed with fibers. The composite is a powder whose volume average particle diameter is 1 ?m or more to 100 ?m or less, and at least a portion of the coagulation inhibitor is arranged in a surface of the composite.

Abstract: An ink absorber includes: an ink absorbing member that is capable of absorbing ink; an accommodation section that accommodates the ink absorbing member; and a detachment structure section that detaches the ink absorbing member from the accommodation section. In the ink absorber, it is preferable that the accommodation section have a bottom section and side wall sections standing up from the bottom section, that inclined surfaces inclined relative to the bottom section be formed inside the side wall sections, and that the detachment structure section be configured with the inclined surfaces.

Abstract: An ink absorbing member accommodation container includes: an accommodation container that has an accommodation space for accommodating an ink absorbing member containing water-absorbable resin capable of absorbing ink inside the accommodation container and that includes an inlet port through which the ink flows into the accommodation space; and a flying preventing mechanism that prevents a constituent material of the ink absorbing member from flying from the inlet port to an outside of the accommodation container.

Abstract: Provided is technology enabling reliably erasing information on recovered paper, and whitening (reducing blackening) of the sheet. A sheet processing device has an image inspector configured to determine from a sheet printed with image information at least one of a background color of the sheet, and position, size, and color of the image information on the sheet; an image analyzer configured to determine, based on the evaluation result from the image inspector, a type of ink masking agent and an amount of ink masking agent; an ink masking agent applicator configured to apply to the image information printed on the sheet an ink masking agent of the specific type and specific amount determined by the image analyzer; and a shredder configured to comminute the sheet to which the ink masking agent was applied by the ink masking agent applicator.

Abstract: A sheet manufacturing apparatus can process various materials and manufacture a variety of sheets by changing conditions for making the sheets. A sheet manufacturing apparatus according to the invention has a supply unit that supplies feedstock; a defibrating unit that defibrates the feedstock; a classifier that classifies defibrated material that past the defibrating unit; a mixing unit that mixes an additive containing resin with the classified material that past the classifier; a sieve unit that passes the mixture that past the mixing unit through many openings; a deposition unit that deposits precipitate that past many openings in the sieve unit; a forming unit that applies pressure and heat to the web deposited on the deposition unit, forming a sheet; and a control unit that changes a condition of at least one of the classifier, mixing unit, sieve unit, deposition unit, and forming unit.

Abstract: A processing apparatus includes a deinking material supply portion that supplies a deinking material to defibrated fibers, and an agitating portion that agitates a mixture of the deinking material and the fibers. The agitating portion includes a chamber and a rotary blade that rotates in the chamber.

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 sheet fabrication apparatus includes: a fiber separation unit that micronizes an ingredient; a first sensor unit that measures a temperature in a first space including the fiber separation unit; a first air conditioning unit that adjusts the temperature in the first space; a fabrication unit that works the fiber separated articles obtained by micronizing the ingredient by the fiber separation unit; a second sensor unit that measures at least either a temperature or a humidity at a mounting position of the fabrication unit; and a control unit that controls the first air conditioning unit on the basis of at least any of measurement results of the first sensor unit and the second sensor unit.

Abstract: A recycled sheet in which fibers are bonded via an additive agent includes a history including information that is related to characteristics.

Abstract: Provided is technology enabling reliably erasing information on recovered paper, and whitening (reducing blackening) of the sheet. A sheet processing device has an image inspector configured to determine from a sheet printed with image information at least one of a background color of the sheet, and position, size, and color of the image information on the sheet; an image analyzer configured to determine, based on the evaluation result from the image inspector, a type of ink masking agent and an amount of ink masking agent; an ink masking agent applicator configured to apply to the image information printed on the sheet an ink masking agent of the specific type and specific amount determined by the image analyzer; and a shredder configured to comminute the sheet to which the ink masking agent was applied by the ink masking agent applicator.

Abstract: A processing device, a sheet manufacturing apparatus, a processing method, and a sheet manufacturing method that suppress damage to a substrate when removing color material from the substrate, and are useful for recycling the substrate after color material is removed, are provided. A processing device has a color material removal device including at least one discharge nozzle configured to discharge particles containing cellulose to a substrate holding color material, and remove the color material from the substrate. The color material removal device preferably has a double-walled conduit construction having an internal conduit and an external conduit in which the internal conduit is inserted, at least one of an opening to the internal conduit and an opening to the external conduit functioning as the discharge nozzle.

Abstract: A waste liquid absorber is adapted to absorb waste liquid discharged from an outlet configured to eject ink in an accommodated state when the waste liquid absorber is accommodated in an accommodation portion. The waste liquid absorber includes a first portion and a second portion having different densities in a thickness direction of a single piece of the waste liquid absorber, and the first portion has higher density than the second portion. Each of the first portion and the second portion includes a fiber and solid flame retardant powders. The fiber of the first portion is formed of material that is the same as material of which the fiber of the second portion is formed.

Abstract: A recycled sheet in which fibers are bonded via an additive agent includes a history including information that is related to characteristics.

Abstract: A sheet manufacturing apparatus includes: a defibrating unit which defibrates a raw material including at least fibers; an addition unit which adds an additive agent to a defibrated material which is defibrated in the defibrating unit; and a sheet forming unit which forms a sheet by bonding the plurality of fibers to each other via the additive agent. According to a history of the raw material, an amount of the additive agent which is fed by the addition unit varies. In addition, there is provided a sheet manufacturing method, including: defibrating the raw material which includes at least fibers; adding the additive agent to the defibrated material; and bonding the plurality of fibers to each other via the additive agent. According to the history of the raw material, a feed amount of the additive agent with respect to the raw material varies.