# US 9,039,823 B2 · Coating liquid for ink jet and ink jet recording method using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,823 B2 - Document ID: US9039823B2 - Status: Granted - Kind: B2 - Application number: 13/557,557 - Filed: 2012-07-25 - Published: 2013-01-31 - Granted: 2015-05-26 - Earliest claimed: 2011-07-29 - Assignees: Seiko Epson Corporation - Applicants: Shuichi Koganehira; Shinichi Yamamoto - Inventors: Shuichi Koganehira; Shinichi Yamamoto - Web page: https://patentgrep.com/patent/US9039823B2 ## 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 5/0011: {Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating (after-treatment of prints B41M7/00; printers for treating or overcoating copy materials before, during or after printing B41J11/0015)} - C09D 11/10: based on artificial resins - C09D 11/38: characterised by non-macromolecular additives other than solvents, pigments or dyes - C09D 137/00: Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a heterocyclic ring containing oxygen (based on polymers of cyclic esters of polyfunctional acids C09D131/00; based on polymers of cyclic anhydrides of unsaturated acids C09D135/00); Coating compositions based on derivatives of such polymers - C08L 83/04: Polysiloxanes - 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) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract A coating liquid comprising: an oxazoline group-containing resin; an alkanediol having 7 or more carbon atoms; a surfactant; and water. ## Claims ### Claim 1 A coating liquid comprising: an oxazoline group-containing resin; an alkanediol having 7 or more carbon atoms; a surfactant; and water, wherein the weight average molecular weight of the oxazoline group-containing resin is from 20000 to 120000. ### Claim 2 (depends on 1) The coating liquid according to claim 1, further comprising a carboxyl group-containing resin. ### Claim 3 A coating liquid comprising: an oxazoline group-containing resin; an alkanediol having 7 or more carbon atoms; a surfactant; water; and a carboxyl group-containing resin wherein the ratio (MA/MB) of the number of moles (MA) of oxazoline groups in the total mass of the oxazoline group-containing resin to the number of moles (MB) of carboxyl groups in the total mass of the carboxyl group-containing resin is from 10 to 40. ### Claim 4 (depends on 1) The coating liquid according to claim 1, wherein the alkanediol having 7 or more carbon atoms is at least one selected from the group consisting of 1,2-heptanediol, 1,2-octanediol, 4,4-dimethyl-1,2-pentanediol, 5-methyl-1,2-hexanediol, and 4-methyl-1,2-hexanediol. ### Claim 5 (depends on 1) The coating liquid according to claim 1, wherein the surfactant is at least one of a polyorganosiloxane-based surfactant and a fluorine-based surfactant. ### Claim 6 (depends on 1) The coating liquid according to claim 1, further comprising at least one of oxyalkylene glycols and glycol ethers. ### Claim 7 (depends on 1) An ink jet recording method using an ink jet recording apparatus having a head, in which the head is equipped with nozzle rows including a plurality of nozzle holes, the method comprising: discharging liquid droplets of the coating liquid according to claim 1 from the nozzle holes; attaching the liquid droplets onto a recording medium to form dots including the liquid droplets; and repeating the discharging and the attaching plural times to form a coating layer on the recording medium. ### Claim 8 (depends on 2) An ink jet recording method using an ink jet recording apparatus having a head, in which the head is equipped with nozzle rows including a plurality of nozzle holes, and the method comprising: discharging liquid droplets of the coating liquid for ink jet according to claim 2 from the nozzle holes; attaching the liquid droplets onto a recording medium to form dots including the liquid droplets; and repeating the discharging and the attaching plural times to form a coating layer on the recording medium. ### Claim 9 (depends on 3) An ink jet recording method using an ink jet recording apparatus having a head, in which the head is equipped with nozzle rows including a plurality of nozzle holes, and the method comprising: discharging liquid droplets of the coating liquid for ink jet according to claim 3 from the nozzle holes; attaching the liquid droplets onto a recording medium to form dots including the liquid droplets; and repeating the discharging and the attaching plural times to form a coating layer on the recording medium. ### Claim 10 (depends on 4) An ink jet recording method using an ink jet recording apparatus having a head, in which the head is equipped with nozzle rows including a plurality of nozzle holes, and the method comprising: discharging liquid droplets of the coating liquid for ink jet according to claim 4 from the nozzle holes; attaching the liquid droplets onto a recording medium to form dots including the liquid droplets; and repeating the discharging and the attaching plural times to form a coating layer on the recording medium. ### Claim 11 (depends on 5) An ink jet recording method using an ink jet recording apparatus having a head, in which the head is equipped with nozzle rows including a plurality of nozzle holes, and the method comprising: discharging liquid droplets of the coating liquid for ink jet according to claim 5 from the nozzle holes; attaching the liquid droplets onto a recording medium to form dots including the liquid droplets; and repeating the discharging and the attaching plural times to form a coating layer on the recording medium. ### Claim 12 (depends on 6) An ink jet recording method using an ink jet recording apparatus having a head, in which the head is equipped with nozzle rows including a plurality of nozzle holes, and the method comprising: discharging liquid droplets of the coating liquid for ink jet according to claim 6 from the nozzle holes; attaching the liquid droplets onto a recording medium to form dots including the liquid droplets; and repeating the discharging and the attaching plural times to form a coating layer on the recording medium. ### Claim 13 (depends on 7) The ink jet recording method according to claim 7, wherein a plurality of nozzle rows are aligned; the coating layer formed in the repeating above has a dot interval with an image resolution of 300 dpi or more in the alignment direction of the nozzle rows; the mass of the liquid droplets discharged in the discharging is from 1 ng to 15 ng; and the diameter of the dots formed in the attaching is larger than the dot interval. ### Claim 14 (depends on 7) The ink jet recording method according to claim 7, further comprising: discharging liquid droplets of a color ink composition including a colorant and water from the nozzle holes; and attaching the liquid droplets onto the coating layer to form a color image. ### Claim 15 (depends on 7) The ink jet recording method according to claim 7, further comprising drying the recording medium. ### Claim 16 (depends on 7) The ink jet recording method according to claim 7, wherein the coating layer is formed on the entire surface of the recording medium in the repeating. ### Claim 17 (depends on 7) The ink jet recording method according to claim 7, wherein the recording medium is a low-ink-absorbing or non-ink-absorbing recording medium.