# US 10,245,847 B2 · Reaction solution and ink jet recording method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,847 B2 - Document ID: US10245847B2 - Status: Granted - Kind: B2 - Application number: 15/703,157 - Filed: 2017-09-13 - Published: 2018-03-29 - Granted: 2019-04-02 - Earliest claimed: 2016-09-29 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Akiko Matsuzaki - Web page: https://patentgrep.com/patent/US10245847B2 ## 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)} - B41J 2/01: Ink jet - 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} - C09D 11/03: characterised by features other than the chemical nature of the binder - C09D 11/033: characterised by the solvent - C09D 11/108: Hydrocarbon resins - C09D 11/322: Pigment inks - C09D 11/38: characterised by non-macromolecular additives other than solvents, pigments or dyes - C09D 11/40: Ink-sets specially adapted for multi-colour inkjet printing - 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 - 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) - 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 Provided is a reaction solution containing any one or more kinds of organic solvents from esters, alkylene glycol ethers, cyclic esters, and alkoxyalkyl amides; and an aggregating agent which aggregates components of an ink composition, in which the reaction solution is used for a recording method performed by using the ink composition. ## Claims ### Claim 1 A reaction solution comprising: any one or more kinds of organic solvents from esters, alkylene glycol ethers, cyclic esters, and alkoxyalkyl amides; and an aggregating agent which aggregates components of an ink composition, wherein the reaction solution is used for a recording method performed by using the ink composition; and the one or more kinds of organic solvents includes an organic solvent of which a degree of solubility is equal to or greater than 1% by mass with respect to an aqueous solution having a concentration of 2-pyrrolidone of 20% by mass. ### Claim 2 (depends on 1) The reaction solution according to claim 1, wherein the recording method is performed by discharging the ink composition and the reaction solution from an ink jet recording head so as to be adhered to a recording medium. ### Claim 3 (depends on 1) The reaction solution according to claim 1, wherein the reaction solution is an aqueous composition containing water. ### Claim 4 (depends on 1) The reaction solution according to claim 1, wherein the organic solvent includes an organic solvent having a standard boiling point in a range of 150° C. to 280° C. ### Claim 5 (depends on 1) The reaction solution according to claim 1, wherein the total content of the organic solvent is in a range of 1% by mass to 30% by mass with respect to the total mass of the reaction solution. ### Claim 6 (depends on 1) The reaction solution according to claim 1, wherein the total content of the organic solvent of which the standard boiling point is higher than 280° C. is equal to or less than 5% by mass with respect to the total mass of the reaction solution. ### Claim 7 (depends on 1) The reaction solution according to claim 1, wherein a total content of the organic solvent of which the standard boiling point is higher than 280° C. and contained in the ink composition is equal to or less than 5% by mass with respect to the total mass of the ink composition. ### Claim 8 (depends on 1) The reaction solution according to claim 1, which contains, as the organic solvent, an organic solvent having a water octanol distribution coefficient in a range of −1 to 4. ### Claim 9 (depends on 1) The reaction solution according to claim 1, wherein the recording method is to perform recording on an ink non-absorbent or ink low absorbent recording medium. ### Claim 10 (depends on 1) The reaction solution according to claim 1, wherein a surface energy of the recording medium is equal to or greater than 30 mN/m. ### Claim 11 (depends on 1) The reaction solution according to claim 1, which contains, as the aggregating agent, any one or more of a polyvalent metal salt, an organic acid, and a cationic compound. ### Claim 12 (depends on 1) The reaction solution according to claim 1, which satisfies at least one of (A), (B): (A) the reaction solution further contains, as an organic solvent, a cyclic amide; (B) the organic solvent contains an alkoxyalkyl amide. ### Claim 13 (depends on 1) The reaction solution according to claim 1, wherein the ink composition contains an organic solvent having a water octanol distribution coefficient of equal to or less than 0. ### Claim 14 (depends on 1) An ink jet recording method performed by using the ink composition and the reaction solution according to claim 1. ### Claim 15 (depends on 1) The reaction solution according to claim 1, further comprising a cyclic amide as an organic solvent. ### Claim 16 (depends on 1) The reaction solution according to claim 1, which satisfies at least one of (A), (B): (A) the reaction solution further contains, as an organic solvent, a cyclic amide; (B) the organic solvent contains an alkoxyalkyl amide. ### Claim 17 A reaction solution comprising: any one or more kinds of organic solvents from esters, alkylene glycol ethers, cyclic esters, and alkoxyalkyl amides; and an aggregating agent which aggregates components of an ink composition, wherein the reaction solution is used for a recording method performed by using the ink composition, and wherein a total content of the organic solvent of which the standard boiling point is higher than 280° C. is equal to or less than 5% by mass with respect to the total mass of the reaction solution. ### Claim 18 (depends on 17) The reaction solution according to claim 17, wherein the recording method is performed by discharging the ink composition and the reaction solution from an ink jet recording head so as to be adhered to a recording medium. ### Claim 19 (depends on 17) The reaction solution according to claim 17, wherein the reaction solution is an aqueous composition containing water. ### Claim 20 (depends on 17) The reaction solution according to claim 17, wherein the organic solvent includes an organic solvent having a standard boiling point in a range of 150° C. to 280° C. ### Claim 21 (depends on 17) The reaction solution according to claim 17, wherein the total content of the organic solvent is in a range of 1% by mass to 30% by mass with respect to the total mass of the reaction solution. ### Claim 22 (depends on 17) The reaction solution according to claim 17, which contains, as the organic solvent, an organic solvent of which a degree of solubility is equal to or greater than 1% by mass with respect to an aqueous solution having a concentration of 2-pyrrolidone of 20% by mass. ### Claim 23 (depends on 17) The reaction solution according to claim 17, wherein a total content of the organic solvent of which the standard boiling point is higher than 280° C. and contained in the ink composition is equal to or less than 5% by mass with respect to the total mass of the ink composition. ### Claim 24 (depends on 17) The reaction solution according to claim 17, which contains, as the organic solvent, an organic solvent having a water octanol distribution coefficient in a range of −1 to 4. ### Claim 25 (depends on 17) The reaction solution according to claim 17, wherein the recording method is to perform recording on an ink non-absorbent or ink low absorbent recording medium. ### Claim 26 (depends on 17) The reaction solution according to claim 17, wherein a surface energy of the recording medium is equal to or greater than 30 mN/m. ### Claim 27 (depends on 17) The reaction solution according to claim 17, which contains, as the aggregating agent, any one or more of a polyvalent metal salt, an organic acid, and a cationic compound. ### Claim 28 (depends on 17) The reaction solution according to claim 17, wherein the ink composition contains an organic solvent having a water octanol distribution coefficient of equal to or less than 0. ### Claim 29 (depends on 17) An ink jet recording method performed by using the ink composition and the reaction solution according to claim 17. ### Claim 30 (depends on 17) The reaction solution according to claim 17, further comprising a cyclic amide as an organic solvent.