# US 10,308,055 B2 · Recording method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,308,055 B2 - Document ID: US10308055B2 - Status: Granted - Kind: B2 - Application number: 14/858,309 - Filed: 2015-09-18 - Published: 2016-03-24 - Granted: 2019-06-04 - Earliest claimed: 2014-09-19 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Ippei Okuda - Web page: https://patentgrep.com/patent/US10308055B2 ## CPC - B41M 5/0017: {Application of ink-fixing material, e.g. mordant, precipitating agent, on the substrate prior to printing, e.g. by ink-jet printing, coating or spraying} - B41J 2/21: for multi-colour printing - B41M 5/50: Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording {(printing on organic plastics using a printer's form B41M1/30; printing on pre-treated paper with a printer's form B41M1/36)} - C09D 11/322: Pigment inks - C09D 11/54: Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink - B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P) - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) ## Abstract Disclosed is a recording method including attaching a reaction solution which forms a recording region S1 by attaching a reaction solution which includes an aggregating agent which is able to aggregate components of a color ink composition to a target recording medium with an attachment amount of 100 nmol/inch2 to 1500 nmol/inch2 of the aggregating agent, and attaching a color ink composition which forms a recording region S2 by attaching the color ink composition which includes a coloring material and a resin to the recording region S1 within 30 seconds of attaching the reaction solution. ## Claims ### Claim 1 A recording method comprising: attaching a reaction solution to a target recording medium, which forms a recording region S1, wherein the reaction solution includes an aggregating agent which is able to aggregate components of a color ink composition, and wherein an attachment amount of the aggregating agent is from 100 nmol/inch2 to 1000 nmol/inch2; and attaching a color ink composition to the recording region S1 within 30 seconds of attaching the reaction solution in a state where, with respect to a total mass of 100 mass % of volatile components which are included in the reaction solution before attachment, a volatile component residual ratio of the reaction solution on the recording region S1 is 30 mass % or more, which forms a recording region S2, wherein the color ink composition includes a coloring material and a resin, and heating the target recording medium for drying the reaction solution before attaching the color ink composition. ### Claim 2 (depends on 1) The recording method according to claim 1, wherein, in the attaching of the reaction solution, the reaction solution is discharged as liquid droplets and attached to the target recording medium with an attachment density of 600 dpi or more×600 dpi or more. ### Claim 3 (depends on 1) The recording method according to claim 1, wherein the target recording medium is a low-absorptive recording medium which is a coated paper having a quantity of water absorption at 30 msec from the start of contact is 5 mL/m2 or more to 10 mL/m2 or less according to the Bristow method. ### Claim 4 (depends on 1) The recording method according to claim 1, wherein the content of the aggregating agent is from 0.090 mol/1000 g to 0.91 mol/1000 g of the reaction solution. ### Claim 5 (depends on 1) The recording method according to claim 1, wherein a component of the color ink composition which is aggregated by the aggregating agent includes at least one of a pigment, the pigment being included in the coloring material, and the resin. ### Claim 6 (depends on 1) The recording method according to claim 1, wherein the aggregating agent includes at least one of a multivalent metal salt or an organic acid. ### Claim 7 (depends on 1) The recording method according to claim 1, wherein, in the attaching of the reaction solution and the attaching of the color ink composition, attachment is performed by performing one scanning with an ink jet head, which discharges the reaction solution or the color ink composition from the ink jet head while changing relative positions of the ink jet head and the target recording medium. ### Claim 8 (depends on 1) The recording method according to claim 1, wherein a temperature of the recording region S1 of the target recording medium is held at 38° C. or less from the attaching of the reaction solution to the attaching of the color ink composition. ### Claim 9 (depends on 1) The recording method according to claim 1, wherein, in the attaching of the color ink composition, the recording region S2 is formed by attaching the color ink composition which includes a coloring material and a resin to the recording region S1 in a state where, with respect to a total mass of 100 mass % of volatile components which are included in the reaction solution before attachment, a volatile component residual ratio of the reaction solution on the recording region S1 is 50 mass % or more. ### Claim 10 (depends on 1) The recording method according to claim 1, wherein an attachment amount of the aggregating agent is from 100 nmol/inch2 to 936 nmol/inch2. ### Claim 11 (depends on 1) The recording method according to claim 1, wherein the color ink composition is attached to the recording region S1 within 10 seconds of attaching the reaction solution, which forms the recording region S2. ### Claim 12 (depends on 1) The recording method according to claim 1, wherein a temperature of the heated target recording medium is 40° C. or less. ### Claim 13 (depends on 1) The recording method according to claim 1, wherein the color ink composition is attached to the recording region S1 within 20 seconds of attaching the reaction solution. ### Claim 14 (depends on 1) The recording method according to claim 1, wherein the volatile component residual ratio of the reaction solution on the recording region S1 is 30 mass % to 90 mass %. ### Claim 15 (depends on 1) The recording method according to claim 1, wherein an attachment amount of the color ink composition is 1.0 mg/inch2 to 10.0 mg/inch2.