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公开(公告)号：US11920300B2
公开(公告)日：2024-03-05
申请号：US17809018
申请日：2022-06-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Masahide Nakamura , Makoto Kawamoto , Akira Hashimoto , Naoto Aruga
CPC classification number: D21F7/003 , D21F3/0272 , D21F9/046 , D21F11/06
Abstract: There is provided a fiber body manufacturing apparatus including: an accumulating section that forms a web by accumulating a material containing fibers on a first transport belt by a dry method; a transport section that transports the web by peeling off a first surface of the web from the first transport belt, and by bringing a second surface of the web, which is a surface opposite to the first surface peeled off from the first transport belt, into contact with a second transport belt; a water-applying section that applies water toward the first surface of the web in a state where the web is in contact with the second transport belt; and a pressurizing section that pressurizes the web to which the water is applied and which is peeled off from the second transport belt.
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公开(公告)号：US11111613B2
公开(公告)日：2021-09-07
申请号：US15756645
申请日：2016-08-30
Applicant: SEIKO EPSON CORPORATION
Inventor： Naotaka Higuchi , Masahide Nakamura
Abstract: Provided is a sheet manufacturing apparatus that can suppress deposited material from wrapping onto a roller. A sheet manufacturing apparatus according to the invention includes: an air-laying unit that lays material containing fiber and resin; and a humidifying unit that humidifies the deposited material laid by the air-laying unit; the humidifying unit including a first air flow generator that generates air flow passing through the deposited material in a direction intersecting the support surface supporting the deposited material, and supplies droplets or humidified air to the deposited material by the air flow produced by the first air flow generator.
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公开(公告)号：US10081913B2
公开(公告)日：2018-09-25
申请号：US15686237
申请日：2017-08-25
Applicant: SEIKO EPSON CORPORATION
Inventor： Naoko Omagari , Naotaka Higuchi , Masahide Nakamura
CPC classification number: D21F9/00 , D04H1/00 , D04H1/732 , D21B1/068 , D21B1/08 , D21F7/06 , Y02W30/642
Abstract: A sheet manufacturing apparatus includes an impeller mill, a first sieve, a first belt, a rotary body, a second sieve, a second belt, and a heating roller. The impeller mill defibrates a raw material containing fiber and discharges a defibrated material. The first sieve screens the defibrated material by causing the defibrated material to pass through a first net. The defibrated material passing through the first sieve is deposited on the first belt to form a web. The rotary body has a protrusion radially protruded from a rotation center and divides the web by rotation to form a subdivided body. The second sieve refines the subdivided body by causing the subdivided body to pass through the second net to form a web. The refined subdivided body is deposited on the second belt to form a web. The heating roller heats the web from the second belt to form a sheet.
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公开(公告)号：US09255360B2
公开(公告)日：2016-02-09
申请号：US14569930
申请日：2014-12-15
Applicant: SEIKO EPSON CORPORATION
Inventor： Masahide Nakamura
Abstract: A sheet manufacturing apparatus includes a screening unit configured to allow a material having fibers to pass through from openings and screen the material, and a forming unit configured to form a sheet by using a passed material that has been screened. The screening unit has a cylindrical unit with openings on a curved surface which is configured to rotate, two side units that are located at two end parts of the cylindrical unit which are spaced apart in a direction of extension of a rotation center axis thereof and that is configured not to rotate, an introduction unit provided to one of the side units and configured to introduce the material to the cylindrical unit, and a discharge unit provided to the other of the side units, located downward from the introduction unit, and configured to discharge a residual material that does not pass through the openings.
Abstract translation: 片材制造装置包括：筛选单元，其被配置为允许具有纤维的材料从开口穿过并筛选所述材料;以及成形单元，其被配置为通过使用已经筛选的通过的材料形成片材。 筛分单元具有圆柱形单元，其在弯曲表面上具有开口的构造，其被设置为旋转，位于圆柱形单元的两个端部处的两个侧部单元，其在其旋转中心轴线的延伸方向上间隔开，并且 被配置为不旋转，引导单元设置到一个侧单元并且被配置为将材料引入到圆筒单元，以及排出单元，设置在从引入单元向下位于另一个侧单元中，并且被配置为 排出不通过开口的残留材料。
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公开(公告)号：US11807988B2
公开(公告)日：2023-11-07
申请号：US17656902
申请日：2022-03-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Masahide Nakamura , Hideki Tanaka , Yoshiyuki Nagai , Yoko Nakai
CPC classification number: D21F7/003 , D21F1/66 , D21F3/0272 , D21F9/04 , D21F11/06
Abstract: A sheet manufacturing method includes a web forming step of forming a web by accumulating a defibrated product in a dry manner, a moisture imparting step of imparting the web with moisture, a pressurizing step of pressurizing the web to which the moisture is imparted, and a heating step of heating the web to which the moisture is imparted, in which a water content of the web to which the moisture is imparted in the moisture imparting step is 12% by mass or more, a pressure applied to the web in the pressurizing step is 0.2 MPa or more, and a temperature of the web in the heating step is 100° C. or lower.
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Patent Agency Ranking
公开(公告)号：US11753769B2
公开(公告)日：2023-09-12
申请号：US17656906
申请日：2022-03-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Masahide Nakamura , Yoshiyuki Nagai , Hideki Tanaka , Naoko Omagari , Yoko Nakai
Abstract: A sheet manufacturing method includes forming a web by accumulating a mixture containing a fiber and a water-soluble polysaccharide in a dry manner, a moisture imparting step of imparting the web with moisture, and a pressurizing and heating step of pressurizing and heating the web to which the moisture is imparted, in which the pressurizing and heating step performs pressurizing and heating at the same time, a pressure higher than a pressure applied to the web in the pressurizing and heating step is not applied to the web before the pressurizing and heating step, and heating to a temperature higher than a temperature for heating the web in the pressurizing and heating step is not performed before the pressurizing and heating step.
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公开(公告)号：US11384482B2
公开(公告)日：2022-07-12
申请号：US16675315
申请日：2019-11-06
Applicant: SEIKO EPSON CORPORATION
Inventor： Isao Inaba , Masahide Nakamura , Kazuma Miyazawa , Yuki Oguchi , Isamu Arai
Abstract: A web manufacturing apparatus includes a transport section configured to transport a web containing fiber, a web humidifier configured to humidify the web, and a control section configured to control operation of the transport section and the web humidifier. When transportation of the web by the transport section is stopped, the control section causes the transport section to recommence transportation of the web after the web is humidified by the web humidifier. The control section may also cause the web humidifier to stop humidification of the web after the web humidifier starts humidification of the web and a predetermined duration elapses.
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公开(公告)号：US11338471B2
公开(公告)日：2022-05-24
申请号：US15998938
申请日：2017-01-24
Applicant: SEIKO EPSON CORPORATION
Inventor： Kazuma Miyazawa , Toshiaki Yamagami , Masahide Nakamura
Abstract: A sheet manufacturing apparatus includes a coarse crushing portion that crushes a raw material containing a fiber into coarse crushed pieces, a defibrating portion that defibrates the coarse crushed pieces into a defibrated material, a sieve portion that includes a plurality of openings, a sheet forming portion that uses the defibrated material passing through the opening of the sieve portion to form a sheet, and a transport passage that transports the defibrated material, which has not passed through the opening of the sieve portion, between the coarse crushing portion and the defibrating portion.
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公开(公告)号：US11005133B2
公开(公告)日：2021-05-11
申请号：US16328337
申请日：2017-08-04
Applicant: SEIKO EPSON CORPORATION
Inventor： Yuki Oguchi , Masahide Nakamura
IPC: D21F7/06 , H01M50/124 , B27N3/18 , B65H20/04 , D04H1/60 , D04H1/732 , D21B1/06 , B32B7/12 , B32B15/09 , B32B15/20 , B32B27/08 , B32B27/36 , C22C21/00 , B29L7/00
Abstract: A sheet manufacturing apparatus includes a second web forming unit that processes fibers into a web shape, a sheet forming unit that pinches and transports a second web processed into the web shape by the second web forming unit, and a control unit that controls at least any of a pressing state and a transport state in the sheet forming unit. The control unit causes the second web to pass through a nip unit by controlling at least any of a transport speed of the sheet forming unit, a nip pressure of the sheet forming unit, and a nip width of the sheet forming unit depending on a position of a leading edge of the second web with respect to the nip unit in which the sheet forming unit pinches the second web.
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公开(公告)号：US10105882B2
公开(公告)日：2018-10-23
申请号：US15478522
申请日：2017-04-04
Applicant: SEIKO EPSON CORPORATION
Inventor： Katsuhito Gomi , Masahide Nakamura , Yuki Yamamoto
IPC: D21H17/20 , B29C43/22 , D21F3/04 , D21F9/00 , B29C35/02 , B29C43/52 , B29K1/00 , B29L7/00 , B29C43/34 , B29K101/10 , B29K105/06 , B29K201/00
Abstract: A sheet manufacturing method includes defibrating a defibration object into a defibrated material in the atmosphere, mixing, in the atmosphere, additive agents including resin into the defibrated material that has been defibrated, adding moisture to a mixture of the defibrated material and the additive agents after the mixing is completed, and heating the mixture that has been moisture-added.
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