# US 9,873,264 B2 · Recording method and recording apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,873,264 B2 - Document ID: US9873264B2 - Status: Granted - Kind: B2 - Application number: 15/096,605 - Filed: 2016-04-12 - Published: 2016-10-20 - Granted: 2018-01-23 - Earliest claimed: 2015-04-14 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Ippei Okuda; Mitsuaki Kosaka - Web page: https://patentgrep.com/patent/US9873264B2 ## CPC - B41J 11/0015: {for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114)} - 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: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - 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) ## Abstract According to the invention, there is provided a recording method which includes discharging and adhering a reaction liquid to an ink non-absorbable or ink low-absorbable recording medium in a form of a droplet, by using an ink jet method, the reaction liquid containing a reagent for aggregating or thickening of a colored ink composition, so as to have a content of 0.1 mol/kg to 0.9 mol/kg, and the reaction liquid having an adhering amount which is set to be equal to or smaller than 1.9 mg/inch2, and adhering a colored ink composition to the recording medium to which the reaction liquid has adhered. A period from when adhering of the reaction liquid is ended until adhering of the colored ink composition is started is within 30 seconds. A surface temperature of the recording medium from the adhering of the reaction liquid to the adhering of the colored ink composition is equal to or lower than 38° C. ## Claims ### Claim 1 A recording method comprising: discharging and adhering a reaction liquid to an ink non-absorbable or ink low-absorbable recording medium in a form of a droplet, by using an ink jet method, the reaction liquid containing a reagent for aggregating or thickening of a colored ink composition, so as to have a content of 0.1 mol/kg to 0.9 mol/kg, and the reaction liquid having an adhering amount which is set to be equal to or smaller than 1.9 mg/inch2, and adhering a colored ink composition to the recording medium to which the reaction liquid has adhered, wherein a period from when adhering of the reaction liquid is ended until adhering of the colored ink composition is started is within 30 seconds, a surface temperature of the recording medium from the adhering of the reaction liquid to the adhering of the colored ink composition is equal to or lower than 38° C., and an adhering amount of the reagent in the adhering of the reaction liquid is 90 nmol/inch2 to 1000 nmol/inch2. ### Claim 2 (depends on 1) The recording method according to claim 1, wherein a mass of the reaction liquid per droplet (1 dot) in the adhering of the reaction liquid is equal to or smaller than 10 ng/dot. ### Claim 3 (depends on 1) The recording method according to claim 1, wherein a resolution of droplets in the adhering of the reaction liquid is equal to or greater than 200×200 dpi. ### Claim 4 (depends on 1) The recording method according to claim 1, wherein a temperature of the recording medium from the adhering of the reaction liquid to the adhering of the colored ink composition is from 32° C. to 38° C. ### Claim 5 (depends on 1) The recording method according to claim 1, wherein at least one selected from a group consisting of a multivalent metal salt and an organic acid is contained as the reagent. ### Claim 6 (depends on 1) A recording apparatus which performs the recording method according to claim 1. ### Claim 7 (depends on 1) The recording method according to claim 1, wherein the recording method further comprises heating the recording medium to the surface temperature that is equal to or lower than 38° C. ### Claim 8 A recording method comprising: discharging and adhering a reaction liquid to an ink non-absorbable or ink low-absorbable recording medium in a form of a droplet, by using an ink jet method, the reaction liquid containing a reagent for aggregating or thickening of a colored ink composition, so as to have a content of 0.1 mol/kg to 0.9 mol/kg, and the reaction liquid having an adhering amount which is set to be equal to or smaller than 1.9 mg/inch2, and adhering a colored ink composition to the recording medium to which the reaction liquid has adhered, wherein a period from when adhering of the reaction liquid is ended until adhering of the colored ink composition is started is within 30 seconds, a surface temperature of the recording medium from the adhering of the reaction liquid to the adhering of the colored ink composition is equal to or lower than 38° C., the colored ink composition contains a resin, and the resin includes a resin in which a volume of a calcium acetate aqueous solution of 0.085 mol/kg is from 0.1 mL to 7 mL, and the volume thereof being required for aggregating an aqueous solution containing a resin of 1 mass % or an aqueous dispersion liquid of 3 mL. ### Claim 9 (depends on 8) A recording apparatus which performs the recording method according to claim 8. ### Claim 10 (depends on 8) The recording method according to claim 8, wherein a mass of the reaction liquid per droplet (1 dot) in the adhering of the reaction liquid is equal to or smaller than 10 ng/dot. ### Claim 11 (depends on 8) The recording method according to claim 8, wherein a resolution of droplets in the adhering of the reaction liquid is equal to or greater than 200×200 dpi. ### Claim 12 (depends on 8) The recording method according to claim 8, wherein a temperature of the recording medium from the adhering of the reaction liquid to the adhering of the colored ink composition is from 32° C. to 38° C. ### Claim 13 (depends on 8) The recording method according to claim 8, wherein at least one selected from a group consisting of a multivalent metal salt and an organic acid is contained as the reagent. ### Claim 14 (depends on 8) The recording method according to claim 8, wherein the recording method further comprises heating the recording medium to the surface temperature that is equal to or lower than 38° C. ### Claim 15 A recording method comprising: discharging and adhering a reaction liquid to an ink non-absorbable or ink low-absorbable recording medium in a form of a droplet, by using an ink jet method, the reaction liquid containing a reagent for aggregating or thickening of a colored ink composition, so as to have a content of 0.1 mol/kg to 0.9 mol/kg, and the reaction liquid having an adhering amount which is set to be equal to or smaller than 1.9 mg/inch2, and adhering a colored ink composition to the recording medium to which the reaction liquid has adhered, wherein a period from when adhering of the reaction liquid is ended until adhering of the colored ink composition is started is within 30 seconds, a surface temperature of the recording medium from the adhering of the reaction liquid to the adhering of the colored ink composition is equal to or lower than 38° C., and regarding a water absorption rate of the recording medium, an absorbed water amount until 30 msec1/2 elapses from when contact is started in a Bristow method is equal to or smaller than 10 mL/m2. ### Claim 16 (depends on 15) A recording apparatus which performs the recording method according to claim 15. ### Claim 17 (depends on 15) The recording method according to claim 15, wherein a mass of the reaction liquid per droplet (1 dot) in the adhering of the reaction liquid is equal to or smaller than 10 ng/dot. ### Claim 18 (depends on 15) The recording method according to claim 15, wherein a resolution of droplets in the adhering of the reaction liquid is equal to or greater than 200×200 dpi. ### Claim 19 (depends on 15) The recording method according to claim 15, wherein a temperature of the recording medium from the adhering of the reaction liquid to the adhering of the colored ink composition is from 32° C. to 38° C. ### Claim 20 (depends on 15) The recording method according to claim 15, wherein at least one selected from a group consisting of a multivalent metal salt and an organic acid is contained as the reagent. ### Claim 21 (depends on 15) The recording method according to claim 15, wherein the recording method further comprises heating the recording medium to the surface temperature that is equal to or lower than 38° C. ### Claim 22 A recording method comprising: discharging and adhering a reaction liquid to an ink non-absorbable or ink low-absorbable recording medium in a form of a droplet, by using an ink jet method, the reaction liquid containing a reagent for aggregating or thickening of a colored ink composition, so as to have a content of 0.1 mol/kg to 0.9 mol/kg, and the reaction liquid having an adhering amount which is set to be equal to or smaller than 1.9 mg/inch2, and adhering a colored ink composition to the recording medium to which the reaction liquid has adhered, wherein a period from when adhering of the reaction liquid is ended until adhering of the colored ink composition is started is within 30 seconds, a surface temperature of the recording medium from the adhering of the reaction liquid to the adhering of the colored ink composition is equal to or lower than 38° C., and an adhering amount of the reaction liquid is set to be from 0.3 mg/inch2 to 1.9 mg/inch2 in a recording region in which an adhering amount of the colored ink composition in the adhering of the colored ink composition is equal to or greater than 5 mg/inch2. ### Claim 23 (depends on 22) A recording apparatus which performs the recording method according to claim 22. ### Claim 24 (depends on 22) The recording method according to claim 22, wherein a mass of the reaction liquid per droplet (1 dot) in the adhering of the reaction liquid is equal to or smaller than 10 ng/dot. ### Claim 25 (depends on 22) The recording method according to claim 22, wherein a resolution of droplets in the adhering of the reaction liquid is equal to or greater than 200×200 dpi. ### Claim 26 (depends on 22) The recording method according to claim 22, wherein a temperature of the recording medium from the adhering of the reaction liquid to the adhering of the colored ink composition is from 32° C. to 38° C. ### Claim 27 (depends on 22) The recording method according to claim 22, wherein at least one selected from a group consisting of a multivalent metal salt and an organic acid is contained as the reagent. ### Claim 28 (depends on 22) The recording method according to claim 22, wherein the recording method further comprises heating the recording medium to the surface temperature that is equal to or lower than 38° C.