Seiko Epson Corporation

Shigemi Wakabayashi

Tetsuya Aoyama

Kazuhiko Kitamura

Yasuhiro Oki

Shinichi Kato

Yasunari Ikeda

Masahiko Nakazawa

Ryosuke Teramoto

Kaneo Yoda

Shunichi Seki

Masahide Nakamura

Hiromi Iseki

Yoshihiro Ueno

Takumi Sago

Hiroki Kurata

Naotaka Higuchi

Yoichi Miyasaka

Shinobu Yokokawa

Naoko Omagari

Takashi Shinohara

Shogo Nakada

Manabu Taniguchi

Motoki Masuda

Yoko Nakai

Takashi Hiraiwa

Yasuo Miyamoto

A method for manufacturing a molded body, includes a deposition step of depositing a mixture containing fibers and a starch in air; a moisturizing step of applying water to the mixture; and a molding step of forming a molded body by heating and pressurizing the mixture to which the water is applied, and the starch has a value of 2,000 to 10,000, the value being represented by the following expression (I) and being obtained by measurement performed in accordance with the following measurement methods (1) to (4) using a rapid visco analyzer (RVA).5,000−30×−90×()+2×η−15×η  (I)In the expression (I), Trepresents a gelatinization start temperature (° C.), Trepresents a gelatinization peak temperature (° C.), ηrepresents a gelatinization peak viscosity (mPa·s), and ηrepresents a trough viscosity (mPa·s), and the measurement is performed such that (1) after a water suspension containing the starch at 25 percent by mass is charged in the RVA as a measurement sample, the temperature thereof is increased to 50° C. and then maintained for one minute; (2) the temperature of the measurement sample is increased from 50° C. to 93° C. over 4 minutes and then maintained at 93° C. for 7 minutes; (3) the temperature of the measurement sample is decreased from 93° C. to 50° C. over 4 minutes and then maintained at 50° C. for 3 minutes; and (4) in the above (2) and (3), a rotational speed of a measurement paddle of the RVA is set to 960 rpm for 10 seconds after the start of the viscosity measurement and is then set to 160 rpm 10 seconds thereafter.

Method for manufacturing molded body

A binder includes an inorganic oxide particle and a binding material particle containing a binding material to mutually bind fibers when water is provided, wherein the binder includes a composite particle in which the binding material particle and the inorganic oxide particle are integrated, the inorganic oxide particle contains carbon, and the content of the carbon is 2% by mass or more relative to the mass of the inorganic oxide particle.

Binder and formed body producing method

The method for manufacturing a molded product of the present disclosure includes a deposition step of depositing a mixture including a fiber and a complex, a humidification step of humidifying the mixture, and a molding step of heating and pressurizing the humidified mixture to obtain a molded product. The complex includes a composite particle in which a binding material particle containing a binding material that exerts a binding force for binding the individual fibers together by being applied with moisture and an inorganic particle are included as a unit.

Method for manufacturing molded product

A formed body producing method including an accumulating step of accumulating a mixture including fiber and starch, a humidifying step of providing the accumulated mixture with water, and a forming step of obtaining a formed body by heating and pressurizing the mixture provided with water, wherein a gelatinization temperature of the starch is 60° C. or lower.

Formed body producing method

A fibrous body manufacturing method includes: a first supplying step of supplying a first raw material containing a first fiber group; a second supplying step of supplying a second raw material containing a second fiber group and a binder, the second fiber group having a length-average fiber length not less than a length-average fiber length of the first fiber group, the binder being configured to bond fibers together; a forming step of forming a first deposited material by depositing a first mixed material containing the first raw material and the second raw material; and a bonding step of bonding first fibers of the first fiber group and second fibers of the second fiber group that are contained in the first deposited material together using the binder to form a first fibrous body.

Fibrous body manufacturing method and fibrous body manufacturing apparatus

A method of forming a fiber body includes defibrating a raw material in air to provide fibers; depositing the fibers in air onto a belt; applying pressure to the deposited fibers to form a pressurized web; and applying a liquid containing an additive to two surfaces of the pressurized web.

Fiber body forming method and fiber body forming apparatus

A fiber body forming method includes a step of applying, to a fiber body containing fibers, a liquid containing a thermoplastic resin which binds the fibers; and a step of heating the fiber body to which the liquid is applied, and in this method, the thermoplastic resin has a glass transition temperature of 10&#xb0; C. or less, and the thermoplastic resin in the liquid has an average particle diameter of 30 nm or less.

Fiber body forming method and fiber binding liquid

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.

Method for defibrating fiber body, defibrating device, sheet manufacturing method, and sheet manufacturing apparatus

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&#xb0; C. and a storage elastic modulus of 400 MPa or more at 150&#xb0; C.

Fiber body forming method and sheet

A fiber body forming method includes a step of preparing a web which contains fibers and which has a bulk density of 0.09 g/cmor more; and a step of applying a liquid containing a binder which binds the fibers together to the web.

A fiber assembly-forming method includes forming a web containing a plurality of fibers charged to a first polarity on a transport belt charged to a second polarity opposite to the first polarity and applying a liquid to the web formed on the transport belt from a nozzle of a liquid coater. The liquid contains a binder binding the fibers.

Fiber assembly-forming method and fiber assembly-forming apparatus

A liquid absorber includes a plurality of small chips. Individual ones of the small chips include a first substrate containing fibers, a second substrate containing fibers, an absorbent resin supported between the first substrate and the second substrate, and an ion exchange resin supported between the first substrate and the second substrate. At least one of the absorbent resin and the ion exchange resin is exposed at an end face of the small chips.

Liquid absorber, liquid absorbing unit, and liquid ejection apparatus

A waste paper recycling apparatus includes a liquid ejection device which receives a first liquid and a second liquid different from the first liquid; a receiving portion receiving a selection operation which selects one of the first liquid and the second liquid which is adhered to a predetermined region of a sheet containing fibers formed from waste paper; and a control portion which controls the liquid ejection device to adhere the liquid selected by the selection operation to the predetermined region. In the waste paper recycling apparatus, the first liquid contains a binder which binds fibers together, and the second liquid contains a pigment and a binder which binds fibers together.

Waste paper recycling apparatus and waste paper recycling method

An oil-based ink jet recording liquid includes a colorant and an oxidatively polymerizable oil-based medium having at least two unsaturated bonds. The ink jet recording liquid has an iodine value of greater than or equal to 65.

Oil-based ink jet recording liquid

An oil-based recording liquid according to the invention includes a color material and an oil-based medium, the oil-based medium contains a first organic medium having an SP value of 9.5 or more and an iodine value of 120 or more, and the content of the first organic medium is 50 percent by mass or more, or the oil-based medium contains an allyl compound.

Growing community of inventors

Azumino, Japan

Shigemi Wakabayashi