# US 9,435,078 B2 · Paper recycling device and paper recycling method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,435,078 B2 - Document ID: US9435078B2 - Status: Granted - Kind: B2 - Application number: 14/859,789 - Filed: 2015-09-21 - Published: 2016-01-14 - Granted: 2016-09-06 - Earliest claimed: 2011-01-12 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Toshiaki Yamagami; Ken Ikuma - Web page: https://patentgrep.com/patent/US9435078B2 ## CPC - D21B 1/08: the raw material being waste paper (chemical part D21C5/02); the raw material being rags - B29B 13/00: Conditioning or physical treatment of the material to be shaped (chemical aspects C08J3/00 {; heating, cooling or curing during shaping B29C35/00; thermal after-treatment B29C71/02}) - D21B 1/063: {using grinding devices} - D21C 5/025: {De-inking} - D21D 5/24: in cyclones - D21F 7/06: Indicating or regulating the thickness of the layer; Signal devices - D21F 9/02: of the Fourdrinier type - D21G 9/0027: {controlling the forming section} - D21H 11/14: Secondary fibres (working-up waste paper D21C5/02) - B29L 2007/008: {Wide strips, e.g. films, webs} - Y02W 30/64: Paper recycling - D21B: FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT - B29B: PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS - D21C: PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR - D21D: TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE - D21F: PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON - D21G: CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES (winders or rewinders for finished products, means for adjustment of wrinkles or lateral extensions B65H) - D21H: PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES - Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT ## Abstract A paper recycling device includes a dry type defibrator, a first transport unit, a classifier unit, a second transport unit a paper forming unit and a control unit. The dry type defibrator unit is configured to defibrate first paper into defibrated material. The first transport unit is configured to transport the defibrated material after being defibrated by the dry type defibrator unit. The classifier unit is configured to deink by an air flow classification the defibrated material after being transported by the first transport unit. The second transport unit is configured to transport the defibrated material after being deinked by the classifier unit. The paper forming unit is configured to for second paper with the defibrated material after being transported by the second transport unit. The control unit is configured to control volume of the first paper supplied to the dry type defibrator unit. ## Claims ### Claim 1 A paper recycling device comprising: a dry type defibrator unit being configured to defibrate first paper into defibrated material; a first transport unit being configured to transport the defibrated material after being defibrated by the dry type defibrator unit, a classifier unit being configured to deink by an air flow classification the defibrated material after being transported by the first transport unit; a second transport unit being configured to transport the defibrated material after being deinked by the classifier unit; a paper forming unit being configured to form second paper with the defibrated material after being transported by the second transport unit; and a control unit being configured to control volume of the first paper supplied to the dry type defibrator unit. ### Claim 2 (depends on 1) The paper recycling device according to claim 1, further comprising a detector unit being configured to detect thickness of the second paper after being formed by the paper forming unit, wherein the control unit is configured to control controls the volume of the second paper supplied to the dry type defibrator unit based on detection results of the detector unit. ### Claim 3 (depends on 1) The paper recycling device according to claim 1, wherein a flow velocity of air flow at a first connecting part of the classifier unit and the first transport unit is greater than a flow velocity of air flow at a second connecting part of the dry type defibrator unit and the first transport unit. ### Claim 4 (depends on 1) The paper recycling device according to claim 1, wherein the classifier unit is a cyclone. ### Claim 5 (depends on 1) The paper recycling device according to claim 1, wherein the paper forming unit includes a dispersion member being configured to disperse the defibrated material, a suction member being configured to suction the dispersed defibrated material, and a mesh belt being configured to transport the defibrated material suctioned by the suction member. ### Claim 6 (depends on 5) The paper recycling device according to claim 5, wherein the mesh belt is configured to transport the second paper after being formed, and includes a water sprayer being configured to spray water on the second paper after being transported by the mesh belt. ### Claim 7 (depends on 5) The paper recycling device according to claim 5, further comprising a heater roller being configured to heat the second paper after the water is sprayed on the second paper.