WO2021182338A1 - インクジェット用処理液、インクジェット捺染装置、及びインクジェット捺染方法 - Google Patents

インクジェット用処理液、インクジェット捺染装置、及びインクジェット捺染方法 Download PDF

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Publication number
WO2021182338A1
WO2021182338A1 PCT/JP2021/008760 JP2021008760W WO2021182338A1 WO 2021182338 A1 WO2021182338 A1 WO 2021182338A1 JP 2021008760 W JP2021008760 W JP 2021008760W WO 2021182338 A1 WO2021182338 A1 WO 2021182338A1
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WIPO (PCT)
Prior art keywords
treatment liquid
silicone oil
ink
mass
inkjet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/008760
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English (en)
French (fr)
Japanese (ja)
Inventor
潤 日置
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Kyocera Document Solutions Inc
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Kyocera Document Solutions Inc
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Filing date
Publication date
Application filed by Kyocera Document Solutions Inc filed Critical Kyocera Document Solutions Inc
Priority to US17/623,365 priority Critical patent/US12391054B2/en
Priority to JP2022507146A priority patent/JP7323053B2/ja
Publication of WO2021182338A1 publication Critical patent/WO2021182338A1/ja
Anticipated expiration legal-status Critical
Priority to US18/115,158 priority patent/US12350947B2/en
Priority to JP2023040882A priority patent/JP7401007B2/ja
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4078—Printing on textile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2/14016—Structure of bubble jet print heads
    • B41J2/14024—Assembling head parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0011—Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • 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
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/023—Emulsion inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • 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
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/10—Printing inks based on artificial resins
    • C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • 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
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • 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
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C09D11/40—Ink-sets specially adapted for multi-colour inkjet printing
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • 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
    • C09D11/00—Inks
    • C09D11/54—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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5264—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
    • D06P1/5292—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds containing Si-atoms
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/001—Special chemical aspects of printing textile materials
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/02—After-treatment
    • D06P5/04—After-treatment with organic compounds
    • D06P5/08—After-treatment with organic compounds macromolecular
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/30—Ink jet printing

Definitions

  • the present invention relates to an inkjet processing liquid, an inkjet printing device, and an inkjet printing method.
  • an ink containing a pigment is used.
  • Ink containing a pigment may be used together with a post-treatment liquid in order to improve the friction fastness of the printing object on which the image is formed (hereinafter, may be referred to as a printed material).
  • a transfer roller for an inkjet recording device for example, Patent Document 1.
  • a treatment liquid containing one or both of fullerene and fullerene derivative is applied to the surface of the transport roller.
  • the dispersion medium of this treatment liquid may be silicone oil.
  • the treatment liquid applied to the transport roller described in Patent Document 1 suppresses the adhesion of ink. Therefore, it is difficult to improve the friction fastness of the printed matter by adhering this treatment liquid to the ink of the printed matter.
  • the present invention has been made in view of the above problems, and an object of the present invention is to be able to discharge from a processing head of an inkjet printing apparatus, to form a printed material having excellent frictional fastness, and to suppress a decrease in the tactile sensation of the printed material. It is to provide a processing liquid for an inkjet that can be produced. Another object of the present invention is to provide an inkjet printing apparatus and an inkjet printing method capable of forming a printed matter having excellent frictional fastness and suppressing a decrease in the tactile sensation of the printed matter.
  • the inkjet treatment liquid according to the present invention contains emulsified particles containing silicone oil and an aqueous medium.
  • the content of the silicone oil in the inkjet treatment liquid is 5% by mass or more and 15% by mass or less.
  • the silicone oil contains at least an ionic group-containing silicone oil.
  • the inkjet printing apparatus includes a recording head that ejects ink to an image forming region to be printed, and a processing head that ejects a processing liquid to at least the image forming region of the printing target.
  • the treatment liquid is the above-mentioned treatment liquid for inkjet.
  • the inkjet printing method includes an ink ejection step of ejecting ink from a recording head to an image forming region to be printed, and a processing step of ejecting a processing liquid from the processing head to at least the image forming region of the printing target. And include.
  • the treatment liquid is the above-mentioned treatment liquid for inkjet.
  • the processing liquid according to the present invention can be discharged from the processing head of the inkjet printing apparatus, can form a printed material having excellent friction fastness, and can suppress a decrease in the tactile sensation of the printed material. Further, according to the inkjet printing apparatus and the inkjet printing method according to the present invention, it is possible to form a printed material having excellent frictional fastness, and it is possible to suppress a decrease in the tactile sensation of the printed material.
  • the measured value of the medium volume diameter (D 50 ) is a laser diffraction / scattering type particle size distribution measuring device (“LA-950” manufactured by HORIBA, Ltd.). It is the median diameter measured by.
  • the median volume diameter may be described as "D 50".
  • the "main component” of a material unless otherwise specified, means the component most abundant in the material on a mass basis.
  • Specific gravity means the specific density at 25 ° C., unless otherwise specified.
  • Acrylic and methacryl may be collectively referred to as "(meth) acrylic".
  • one type may be used alone, or two or more types may be used in combination.
  • the inkjet treatment liquid (hereinafter, may be referred to as a treatment liquid) according to the first embodiment of the present invention will be described.
  • the treatment liquid according to the first embodiment contains emulsified particles and an aqueous medium. Emulsified particles are dispersed in the aqueous medium of the treatment liquid. That is, the treatment liquid according to the first embodiment is an emulsion, and more specifically, an oil droplet (O / W) type emulsion in water.
  • O / W oil droplet
  • the treatment liquid according to the first embodiment is preferably used in, for example, an inkjet printing apparatus and an inkjet printing method described later.
  • the treatment liquid according to the first embodiment is, for example, a treatment liquid for post-treatment. Specifically, after the image is formed in the image forming region to be printed by the ink, the image forming region is post-processed by the treatment liquid according to the first embodiment.
  • the emulsified particles contained in the treatment liquid contain silicone oil.
  • the silicone oil contains at least an ionic group-containing silicone oil.
  • the silicone oil may further contain other silicone oil (hereinafter, may be referred to as other silicone oil) in addition to the ionic group-containing silicone oil.
  • Silicone oil has a friction reducing effect.
  • the image formed on the printing target is coated with silicone oil, and the friction coefficient of the surface of the printing target is reduced.
  • silicone oil having a friction reducing action
  • the friction between the yarns to be printed is reduced.
  • the stiffness of the printed object caused by image formation is reduced, and the deterioration of the tactile sensation of the printed material is suppressed.
  • Silicone oil has water repellency.
  • the printing target is coated with the water-repellent silicone oil, and the surface of the printing target is imparted with water repellency.
  • the third advantage will be explained.
  • the ionic group-containing silicone oil has an ionic group
  • an ionic bond is formed between the ionic group and the printing target and between the ionic group and the ink ejected on the printing target. Guessed.
  • the formation of ionic bonds makes it difficult for water to wash away the ionic group-containing silicone oil from the printing target and the ink. As a result, a printed material having excellent wet friction fastness can be formed.
  • the ionic group-containing silicone oil has an ionic group
  • the emulsified particles containing the ionic group-containing silicone oil are preferably dispersed in the aqueous medium of the treatment liquid.
  • Such a processing liquid can be suitably discharged from the processing head of the inkjet printing apparatus.
  • the amount of the treatment liquid used is reduced as compared with the case where the printed material is immersed in the treatment liquid. Therefore, it is difficult for the printed object to be stiff, and the deterioration of the tactile sensation of the printed material is suppressed.
  • a silicone oil having a higher viscosity can be used as compared with the case where an ink containing silicone oil as a base oil is discharged from the recording head. Therefore, a printed material having excellent friction fastness can be formed.
  • the content of silicone oil in the treatment liquid is 5% by mass or more and 15% by mass or less.
  • the content of the silicone oil is less than 5% by mass, the dry friction fastness of the printed material and the tactile sensation of the printed material are lowered.
  • the content of the silicone oil exceeds 15% by mass, the amount of the ionic groups of the ionic group-containing silicone oil contained in the silicone oil increases, so that it is difficult to impart water repellency to the surface to be printed. Wet friction fastness of the printed material is reduced.
  • the content of silicone oil in the treatment liquid means the percentage of the mass of silicone oil to the mass of the treatment liquid.
  • the emulsified particles contain two or more kinds of silicone oils (for example, ionic group-containing silicone oils and other silicone oils)
  • the content of the silicone oils is the two or more kinds of silicone oils with respect to the mass of the treatment liquid. Means the percentage of the total mass of.
  • the viscosity of the silicone oil is 1000 mm 2 / s (ie, mm 2 / sec) or higher.
  • the viscosity of the silicone oil is 1000 mm 2 / s or more, it becomes difficult for the silicone oil to be separated from the printed material by friction, and a printed material having excellent dry friction fastness and wet friction fastness can be formed.
  • the processing liquid according to the first embodiment can be discharged from the processing head of the inkjet printing apparatus. When the treatment liquid is discharged from the treatment head, the amount of the treatment liquid used is reduced as compared with the case where the printed material is immersed in the treatment liquid. Therefore, even when a silicone oil having a high viscosity of 1000 mm 2 / s or more is used as the treatment liquid, the printing target is less likely to be stiff and the deterioration of the tactile sensation of the printed material is suppressed.
  • the upper limit of the viscosity of the silicone oil is not particularly limited.
  • the viscosity of the silicone oil is preferably at 100,000 mm 2 / s or less, and more preferably less 6000 mm 2 / s.
  • the viscosity of silicone oil is, for example, 1000 mm 2 / s, 1100 mm 2 / s, 1200 mm 2 / s, 1500 mm 2 / s, 1700 mm 2 / s, 1800 mm 2 / s, 2000 mm 2 / s, 3000 mm 2 / s, 5700 mm 2 It may be within the range of two values selected from the group consisting of / s and 6000 mm 2 / s.
  • the viscosity of silicone oil means the kinematic viscosity at 25 ° C.
  • the viscosity of the silicone oil means the viscosity of a mixture of two or more silicone oils. ..
  • the viscosity of silicone oil is measured according to the method described in JIS (Japanese Industrial Standards) Z8803: 2011 (Measuring method for measuring liquid viscosity).
  • JIS Japanese Industrial Standards
  • Z8803 2011
  • Measured method for measuring liquid viscosity for example, by extracting the silicone oil from the treatment liquid with toluene, washing and drying, the silicone oil can be separated from the treatment liquid and the viscosity of the silicone oil can be measured.
  • the average particle size of the emulsified particles is preferably 100 nm or more and 250 nm or less, more preferably 120 nm or more and 220 nm or less, and further preferably 150 nm or more and 200 nm or less.
  • the processing liquid containing the emulsified particles can be suitably discharged from the processing head of the inkjet printing apparatus.
  • the average particle size of the emulsified particles may be in the range of two values selected from the group consisting of, for example, 100 nm, 120 nm, 135 nm, 150 nm, 155 nm, 160 nm, 180 nm, 200 nm, 210 nm, 220 nm, and 250 nm. ..
  • the average particle size of the emulsified particles means the harmonic mean particle size (also called the Cumulant average particle size) based on the scattered light intensity standard calculated based on the Cumulant method.
  • the average particle size of the emulsified particles is measured according to the method described in ISO 13321: 1996 (Particle size analysis-Photon spectroscopy).
  • the emulsified particles may further contain components other than silicone oil. However, it is preferable that the emulsified particles contain only silicone oil in order to form a printed matter having excellent frictional fastness and suppress a decrease in the tactile sensation of the printed matter.
  • the silicone oil contained in the emulsified particles contains at least an ionic group-containing silicone oil, and may further contain other silicone oils.
  • the ionic group-containing silicone oil and other silicone oils will be described.
  • the ionic group-containing silicone oil is, for example, a modified silicone oil, and more specifically, an ionic group-modified silicone oil.
  • examples of the ionic group-modified silicone oil include a modified silicone oil in which an ionic group is introduced into a side chain and a modified silicone oil in which an ionic group is introduced into a terminal group.
  • the modified silicone oil in which an ionic group is introduced into the side chain has a first terminal group represented by the formula (1a), a repeating unit represented by the formula (1b), and a repeating unit represented by the formula (1c). It has a unit and a second terminal group represented by the formula (1d).
  • R 1 in the formula (1c) represents a group containing an ionic group.
  • the ionic group of the group containing an ionic group an amino group, a carboxy group, a phenolic hydroxy group, or a silanol group is preferable.
  • the modified silicone oil in which an ionic group is introduced into the terminal group is represented by the first terminal group represented by the following formula (2a), the repeating unit represented by the formula (2b), and the formula (2c). It has a second terminal group.
  • R 2 in the formula (2a) and R 3 in the formula (2c) each independently represent a group containing an ionic group.
  • the ionic group of the group containing an ionic group an amino group, a carboxy group, a phenolic hydroxy group, or a silanol group is preferable.
  • the ionic group-containing silicone oil is preferably at least one selected from the group consisting of amino-modified silicone oil, carboxy-modified silicone oil, phenol-modified silicone oil, and silanol-modified silicone oil, and is preferably one kind. More preferred. Amino-modified silicone oil, carboxy-modified silicone oil, phenol-modified silicone oil, and silanol-modified silicone oil each have an amino group, a carboxy group, a phenolic hydroxy group, and a silanol group as ionic groups.
  • the functional group equivalent of the ionic group-containing silicone oil is preferably 1000 g / mol or more and 5500 g / mL or less.
  • the functional group equivalent is the molecular weight per 1 mol of functional group (ionic group).
  • the functional group equivalent of the ionic group-containing silicone oil is, for example, 1000 g / mol, 1200 g / mol, 1474 g / mol, 1490 g / mol, 1500 g / mol, 2000 g / mol, 3800 g / mol, 3900 g / mol, 4000 g / mol, It may be within the range of two values selected from the group consisting of 5000 g / mol, 5200 g / mol, and 5500 g / mol.
  • the content of the ionic group-containing silicone oil with respect to the total mass of the silicone oil contained in the emulsified particles is preferably 30% by mass or more and 100% by mass or less, and preferably 40% by mass or more and 100% by mass or less. More preferably, it is particularly preferably 100% by mass.
  • silicone oils The viscosity of the silicone oil can be adjusted by further containing the other silicone oil in the silicone oil.
  • other silicone oils include non-modified silicone oils, and more specifically, dimethylpolysiloxane.
  • the content of the other silicone oil with respect to the total mass of the silicone oil contained in the emulsified particles is preferably 70% by mass or less, and is 50% by mass or more and 70% by mass or less. It is more preferable that it is 50% by mass or more and 60% by mass or less.
  • the ratio of the mass of the ionic group-containing silicone oil to the mass of the other silicone oil is preferably 0.5 or more and 1.0 or less, and 0.6 or more and 0. It is more preferably 7 or less.
  • the aqueous medium contained in the treatment liquid is a medium containing water as a main component.
  • the aqueous medium may function as a solvent or a dispersion medium.
  • Specific examples of the aqueous medium include water or a mixed solution of water and a polar solvent.
  • Examples of polar solvents contained in aqueous media include methanol, ethanol, isopropyl alcohol, butanol, and methyl ethyl ketone.
  • the content of water in the aqueous medium is preferably 90% by mass or more, and particularly preferably 100% by mass.
  • the content of the aqueous medium is preferably 50% by mass or more and 90% by mass or less, and more preferably 55% by mass or more and 70% by mass or less with respect to the mass of the treatment liquid.
  • the treatment liquid may contain components other than the emulsified particles and the aqueous medium (hereinafter, may be referred to as other components).
  • Other components include acids, bases, polyols, and dispersants.
  • the treatment liquid preferably contains an acid.
  • the acid promotes ionization of the anionic group, and the emulsified particles containing the ionic group-containing silicone oil are preferably dispersed in the aqueous medium.
  • the acid include a strong acid and a weak acid.
  • the strong acid include hydrochloric acid, p-toluenesulfonic acid, and sulfuric acid.
  • Weak acids include, for example, benzoic acid and acetic acid.
  • the acid is preferably a strong acid, more preferably hydrochloric acid, paratoluenesulfonic acid, or sulfuric acid.
  • the acid content is preferably 1% by mass or more and 5% by mass or less with respect to the mass of the treatment liquid in terms of the amount of the acid having a concentration of 1 mol / L.
  • the treatment liquid When the ionic group-containing silicone oil has a cationic group, the treatment liquid preferably contains a base.
  • the base promotes ionization of the cationic group, and the emulsified particles containing the ionic group-containing silicone oil are preferably dispersed in the aqueous medium.
  • the base include sodium hydroxide.
  • the base content is preferably 1% by mass or more and 5% by mass or less with respect to the mass of the treatment liquid in terms of the amount of bases having a concentration of 1 mol / L.
  • the viscosity of the treatment liquid is suitably adjusted.
  • the polyol diol or triol is preferable.
  • the diol include glycol compounds, and more specifically, ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, and tetraethylene glycol.
  • triol include glycerin.
  • the content of the polyol is preferably 10% by mass or more and 40% by mass or less, and more preferably 15% by mass or more and 35% by mass or less with respect to the mass of the treatment liquid. preferable.
  • Dispersants include, for example, surfactants, resin dispersants, and polysaccharides. However, it is preferable that the emulsified particles are dispersed in the treatment liquid without containing the dispersant. As already mentioned, the emulsified particles containing the ionic group-containing silicone oil are preferably dispersed in the aqueous medium. Therefore, the dispersed state of the emulsified particles can be maintained even when the dispersant is not contained. Dispersants often have hydrophilic groups. Since the dispersant having a hydrophilic group is not contained in the treatment liquid, the wet friction fastness of the printed matter treated by the treatment liquid is improved.
  • the components added as needed eg, acids or bases, and polyols
  • a raw material emulsion containing emulsified particles may be produced in advance, and the raw material emulsion, an aqueous medium and, if necessary, a polyol may be mixed to obtain a treatment liquid.
  • the raw material emulsion contains, for example, a silicone oil, a portion of an aqueous medium, and optionally an acid or base.
  • the emulsification time is, for example, 5 minutes or more and 1 hour or less.
  • the emulsification temperature is, for example, 5 ° C. or higher and 40 ° C. or lower.
  • the content of the raw material emulsion is, for example, 15% by mass or more and 50% by mass or less with respect to the mass of the treatment liquid.
  • FIG. 1 schematically shows each component as a main body, and the size, number, and the like of each of the illustrated components may be changed as appropriate.
  • FIG. 1 is a side view showing a main part of the inkjet printing apparatus 10 which is an example of the inkjet printing apparatus according to the second embodiment.
  • the inkjet printing device 10 shown in FIG. 1 is a flatbed type inkjet printing device.
  • the inkjet printing apparatus 10 processes the printing target P using the treatment liquid according to the first embodiment. Since the treatment liquid according to the first embodiment is used, the inkjet printing apparatus 10 can form a printed material having excellent frictional fastness for the same reason as described in the first embodiment, and the tactile sensation of the printed material can be formed. Can be suppressed.
  • the inkjet printing apparatus 10 shown in FIG. 1 includes a recording head 1, a processing head 2, and a mounting table 3.
  • the recording head 1 has a first recording head 1a, a second recording head 1b, a third recording head 1c, and a fourth recording head 1d.
  • the recording head 1 ejects ink to the image forming region of the printing target P.
  • the first recording head 1a, the second recording head 1b, the third recording head 1c, and the fourth recording head 1d included in the recording head 1 have different color inks (for example, yellow ink, magenta ink, cyan ink, etc.). And black ink).
  • the recording head 1 is not particularly limited, and examples thereof include a piezo type head and a thermal inkjet type head.
  • the processing head 2 discharges the processing liquid to at least the image forming region of the printing target P.
  • the treatment liquid is the treatment liquid according to the first embodiment.
  • the processing head 2 is not particularly limited, and examples thereof include a piezo type head and a thermal inkjet type head.
  • the printing target P is placed on the mounting table 3.
  • the recording head 1 and the processing head 2 are arranged above the mounting table 3 so that the ink and the processing liquid can be ejected to the printing target P.
  • the mounting table 3 moves horizontally in the direction from the recording head 1 to the processing head 2 (for example, to the left in FIG. 1).
  • the mounting table 3 moves horizontally, the printing target P on the mounting table 3 is conveyed.
  • the printing target P may be a woven fabric or a knitted fabric.
  • Examples of the printing target P include cotton fabric, silk fabric, linen fabric, acetate fabric, rayon fabric, nylon fabric, polyurethane fabric, and polyester fabric.
  • the mounting table 3 on which the printing target P is placed moves horizontally, and the printing target P is transported to a position facing the recording head 1.
  • Ink is ejected from the recording head 1 to the image forming region of the printing target P.
  • an image is formed by the ink in the image forming region of the printing target P.
  • the mounting table 3 on which the printing target P is placed moves further horizontally, and the printing target P is conveyed to a position facing the processing head 2.
  • the processing liquid is discharged from the processing head 2 to at least the image forming region of the printing target P. In this way, the treatment film is formed by the treatment liquid on the image formed in the image formation region of the printing target P.
  • the processing head 2 may discharge the processing liquid only to the image forming region of the printing target P, or may discharge the processing liquid to a region wider than the image forming region of the printing target P, and may discharge the processing liquid to the entire surface of the printing target P.
  • the processing liquid may be discharged.
  • the processing head 2 discharges the processing liquid only to the image forming region of the printing target P, and the processing liquid is recorded even in the image forming region. It is more preferable to eject the treatment liquid only to the region where the ink is ejected by the head 1.
  • the processing head 2 can accurately control the position where the processing liquid is discharged, the processing liquid can be discharged only to the region where the ink is discharged.
  • the distance between the processing head 2 and the printing target P is preferably 1 mm or more and 5 mm or less. Further, in order to efficiently proceed with the post-treatment with the treatment liquid, it is preferable that only the treatment liquid is discharged from the treatment head 2.
  • the mounting table 3 on which the printing target P is placed moves further horizontally, and the printing target P moves to a position facing the heating unit (not shown). Be transported.
  • the heating unit heats the printing target P, the ink and the treatment liquid are dried.
  • the heating temperature is, for example, 120 ° C. or higher and 180 ° C. or lower.
  • the heating time is, for example, 1 minute or more and 10 minutes or less.
  • the inkjet printing apparatus 10 has been described above.
  • the inkjet printing apparatus of the present invention is not limited to the inkjet printing apparatus 10, and can be changed as shown in the following modification, for example.
  • the inkjet printing apparatus 10 may include a spray for spraying the treatment liquid instead of the processing head 2 for discharging the treatment liquid.
  • the treatment with the treatment liquid may be carried out by immersing the printing target P in the tank in which the treatment liquid is stored. In the case of immersion, the discharge amount of the treatment liquid described later in the third embodiment corresponds to the coating amount of the treatment liquid.
  • the mounting table 3 has moved horizontally, but the recording head 1 and the processing head 2 may move horizontally while the mounting table 3 is fixed.
  • the mounting table 3 moves horizontally or the recording head 1 and the processing head 2 move horizontally in the transport direction of the printing target P, and the recording head 1 and the processing head 2 move horizontally with the printing target P. It may move horizontally in a direction orthogonal to the transport direction of.
  • the number of recording heads 1 may be 1 to 3 or 5 or more.
  • an inkjet printing apparatus other than the flatbed type may be used. As long as the recording head 1 and the processing head 2 are provided, the effect of using the processing liquid according to the first embodiment can be obtained regardless of the mode of the inkjet printing apparatus.
  • the inkjet printing method according to the third embodiment of the present invention will be described with reference to FIG.
  • an image is formed in the image forming region of the printing target P by using the treatment liquid according to the first embodiment.
  • an image is formed in the image forming region of the printing target P by using the inkjet printing apparatus 10 according to the second embodiment. Since the inkjet printing method according to the third embodiment uses the treatment liquid according to the first embodiment, it is possible to form a printed material having excellent frictional fastness for the same reason as described in the first embodiment. It is possible to suppress a decrease in the tactile sensation of.
  • the inkjet printing method includes an ink ejection step and a processing step.
  • ink is ejected from the recording head 1 to the image forming region of the printing target P.
  • the processing liquid is discharged from the processing head 2 to at least the image forming region of the printing target P.
  • the treatment liquid is the treatment liquid according to the first embodiment.
  • the processing step is performed, for example, after the ink ejection step.
  • the inkjet printing method may further include a heating step, if necessary.
  • the amount of ink ejected to the printing target P is, for example, 5 g / m 2 or more and 40 g / m 2 or less.
  • the discharge amount of the treatment liquid with respect to the printing target P is, for example, 10 g / m 2 or more and 120 g / m 2 or less.
  • the discharge amount of the treatment liquid is preferably 15 g / m 2 or more and 30 g / m 2 or less.
  • the discharge amount of the treatment liquid is more preferably 17 g / m 2 or more and 25 g / m 2 or less.
  • the ink contains, for example, a pigment and an aqueous medium. If necessary, the ink may further contain at least one selected from the group consisting of surfactants, polyols, and binder resin particles.
  • the pigment is, for example, dispersed in an aqueous medium.
  • the D 50 of the pigment is preferably 30 nm or more and 250 nm or less, and more preferably 70 nm or more and 160 nm or less.
  • Examples of pigments include yellow pigments, orange pigments, red pigments, blue pigments, purple pigments, and black pigments.
  • Examples of the yellow pigment include C.I. I. Pigment Yellow (74, 93, 95, 109, 110, 120, 128, 138, 139, 151, 154, 155, 173, 180, 185, and 193).
  • Examples of the orange pigment include C.I. I. Pigment oranges (34, 36, 43, 61, 63, and 71).
  • Examples of the red pigment include C.I. I. Pigment Red (122 and 202).
  • Examples of the blue pigment include C.I. I. Pigment blue (15, more specifically 15: 3).
  • Examples of the purple pigment include C.I. I. Pigment Violet (19, 23, and 33).
  • Examples of the black pigment include C.I. I. Pigment Black (7) can be mentioned.
  • the pigment content is preferably 1% by mass or more and 12% by mass or less, and more preferably 1% by mass or more and 7% by mass or less with respect to the mass of the ink.
  • the content of the pigment is 1% by mass or more, the image density of the printed material to be formed can be improved. Further, when the pigment content is 12% by mass or less, an ink having high fluidity can be obtained.
  • the aqueous medium contained in the ink has the same meaning as the aqueous medium contained in the treatment liquid described in the first embodiment.
  • the content of the aqueous medium is preferably 5% by mass or more and 70% by mass or less, and more preferably 40% by mass or more and 60% by mass or less with respect to the mass of the ink.
  • the surfactant When the ink contains a surfactant, the wettability of the ink with respect to the printing target is improved.
  • the surfactant include anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants.
  • the surfactant contained in the ink is preferably a nonionic surfactant.
  • the nonionic surfactant is preferably a surfactant having an acetylene glycol structure, and more preferably an acetylene diol ethylene oxide adduct.
  • the HLB value of the surfactant is preferably 3 or more and 20 or less, more preferably 6 or more and 16 or less, and further preferably 7 or more and 10 or less.
  • the content of the surfactant is preferably 0.1% by mass or more and 5.0% by mass or less with respect to the mass of the ink, and is 0. More preferably, it is 5.5% by mass or more and 2.0% by mass or less.
  • the viscosity of the ink is suitably adjusted.
  • the polyol contained in the ink is synonymous with the polyol contained in the treatment liquid described in the first embodiment.
  • the content of the polyol is preferably 5% by mass or more and 60% by mass or less, preferably 20% by mass or more, with respect to the mass of the ink in order to preferably adjust the viscosity of the ink. It is more preferably 50% by mass or less.
  • Binder resin particles are present in a dispersed state in the aqueous medium.
  • the binder resin particles function as a binder that binds the printing target and the pigment. Therefore, when the ink contains the binder resin particles, it is possible to obtain a printed material having excellent pigment fixability.
  • Resins contained in the binder resin particles include urethane resin, (meth) acrylic resin, styrene- (meth) acrylic resin, styrene-maleic acid copolymer, vinylnaphthalene- (meth) acrylic acid copolymer, and vinylnaphthalene. -Maleic acid copolymer can be mentioned.
  • Urethane resin is preferable as the resin contained in the binder resin particles.
  • the content of the urethane resin in the binder resin particles is preferably 80% by mass or more, and more preferably 100% by mass.
  • the content of the binder resin is preferably 1% by mass or more and 20% by mass or less, and more preferably 2% by mass or more and 10% by mass or less with respect to the mass of the ink.
  • the content of the binder resin particles is 1% by mass or more, a printing target having excellent pigment fixability can be obtained.
  • the content of the binder resin particles is 20% by mass or less, the ink can be stably ejected to the printing target.
  • the ink further contains known additives (more specifically, dissolution stabilizers, anti-drying agents, antioxidants, viscosity regulators, pH regulators, antifungal agents, etc.), if necessary. May be good.
  • the ink is produced, for example, by using a stirrer to mix the pigment, the aqueous medium, and the components added as needed (eg, surfactants, polyols, and binder resin particles).
  • the mixing time is, for example, 1 minute or more and 30 minutes or less.
  • Treatment liquids (A-1) to (A-7) and (B-1) to (B-5) were prepared by the following methods.
  • the compositions of the treatment liquids (A-1) to (A-7) and (B-1) to (B-5) are shown in Table 1.
  • each term in Table 1 is as follows.
  • “Amount” indicates the content of silicone oil in the treatment liquid. When the emulsified particles contain two or more types of silicone oil, the “amount” indicates the total content of the two or more types of silicone oil in the treatment liquid.
  • “Wt%” indicates mass%.
  • “Viscosity” indicates the viscosity of silicone oil. When the emulsified particles contain two or more silicone oils, “viscosity” indicates the viscosity of a mixture of two or more silicone oils. “-” Indicates that the raw material emulsion G could not be prepared and the treatment liquid (B-4) could not be prepared.
  • raw material emulsions A to H for use in preparing each treatment liquid were prepared by the methods shown below.
  • KF-864" manufactured by Shin-Etsu Chemical Co., Ltd., viscosity: 1,700 mm 2 / s, specific gravity: 0.98, functional group equivalent: 3,800 g / mol
  • the contents of the beaker were filtered with a 120-mesh stainless steel filter to obtain a raw material emulsion A.
  • Emulsified particles of amino-modified silicone oil were dispersed in the raw material emulsion A.
  • the average particle size of the emulsified particles contained in the raw material emulsion A was 150 nm.
  • a homogenizer (“Ultra Tarax T25” manufactured by IKA)
  • the contents of the beaker were filtered with a 120-mesh stainless steel filter to obtain a raw material emulsion B.
  • Emulsified particles of carboxy-modified silicone oil were dispersed in the raw material emulsion B.
  • the average particle size of the emulsified particles contained in the raw material emulsion B was 120 nm.
  • KF-877 manufactured by Shin-Etsu Chemical Co., Ltd., viscosity: 5,700 mm 2 / s, specific gravity: 0.98, functional group equivalent: 5,200 g / mol
  • hydrochloric acid concentration: 1 mol / L
  • the contents of the beaker were filtered with a 120-mesh stainless steel filter to obtain a raw material emulsion C.
  • Emulsified particles of amino-modified silicone oil were dispersed in the raw material emulsion C.
  • the average particle size of the emulsified particles contained in the raw material emulsion C was 200 nm.
  • KF96-3000cs manufactured by Shin-Etsu Chemical Co., Ltd., viscosity: 3,000 mm 2 / s, specific gravity: 0.97
  • phenol-modified silicone oil manufactured by Shin-Etsu Chemical Co., Ltd. "" KF2201 ”, viscosity: 97 m 2 /
  • KF-865 manufactured by Shin-Etsu Chemical Co., Ltd., viscosity: 110 mm 2 / s, specific gravity: 0.97, functional group equivalent: 5,000 g / mol
  • hydrochloric acid concentration 1 mol / L
  • the contents of the beaker were filtered with a 120-mesh stainless steel filter to obtain a raw material emulsion F.
  • Emulsified particles of amino-modified silicone oil were dispersed in the raw material emulsion F.
  • the average particle size of the emulsified particles contained in the raw material emulsion F was 150 nm.
  • raw material emulsion G > 300 g of non-modified silicone oil (“KF-96-3000 cs” manufactured by Shin-Etsu Chemical Co., Ltd., viscosity: 3,000 mm 2 / s, specific gravity: 0.97), 600 g of ion-exchanged water, and 100 g of hydrochloric acid (concentration 1 mol). / L) was placed in the beaker.
  • a homogenizer (“Ultra Turrax T25” manufactured by IKA)
  • the contents of the beaker were allowed to stand for 30 minutes after stirring, the aqueous phase and the oil phase were separated, and the raw material emulsion G could not be prepared.
  • KF-352A manufactured by Shin-Etsu Chemical Co., Ltd., viscosity: 1,600 mm 2 / s, specific gravity: 1.03
  • the emulsified particles of the polyether-modified silicone oil were dispersed in the raw material emulsion H. Note that the polyether-modified silicone oil does not have an ionic group.
  • the average particle size of the emulsified particles contained in the raw material emulsion H was 150 nm.
  • treatment liquids (A-1) to (A-7) and (B-1) to (B-5) were prepared by the methods shown below.
  • the silicone oil content was calculated by rounding off to the first decimal place.
  • ⁇ Preparation of treatment liquid (A-1)> A mixture of 33.30 g of raw material emulsion A (content of amino-modified silicone oil: 30% by mass, content of amino-modified silicone oil: 9.99 g), 33.35 g of ion-exchanged water, and 33.35 g of propylene glycol. Then, the treatment liquid (A-1) was obtained. In the treatment liquid (A-1), the content of the amino-modified silicone oil was 10% by mass.
  • the treatment liquid (A-4) was obtained by the method.
  • the content of the carboxy-modified silicone oil was 10% by mass.
  • Treatment liquid (A-6) Treatment except that the raw material emulsion A (content of amino-modified silicone oil: 30% by mass) was changed to the raw material emulsion D (content of a mixture of phenol-modified silicone oil and non-modified silicone oil: 30% by mass).
  • the treatment liquid (A-6) was obtained by the same method as the liquid (A-1).
  • the content of the mixture of the phenol-modified silicone oil and the non-modified silicone oil was 10% by mass.
  • the treatment liquid (A-7) was obtained by the same method as the liquid (A-1). In the treatment liquid (A-7), the content of the mixture of silanol-modified silicone oil and non-modified silicone oil was 10% by mass.
  • the content of the amino-modified silicone oil was 20% by mass.
  • the content of the amino-modified silicone oil was 10% by mass.
  • ⁇ Preparation of treatment liquid (B-5)> The raw material emulsion A (content of amino-modified silicone oil: 30% by mass) was changed to the raw material emulsion H (content of polyether-modified silicone oil: 30% by mass), except that the treatment liquid (A-1) was used.
  • the treatment liquid (B-5) was obtained by the same method. In the treatment liquid (B-5), the content of the polyether-modified silicone oil was 10% by mass.
  • cotton broad cloth manufactured by Color Dyeing Co., Ltd., size: A4 size, cotton count of warp and weft: 40/1, warp density: 130 threads / inch, weft density: 75 threads / inch, basis weight : 122 g / m 2
  • An inkjet printer (“Colorio® PX-045A” manufactured by Seiko Epson Corporation) was used to prepare the printed material for evaluation.
  • the first ink chamber of the first cartridge was filled with ink.
  • the second ink chamber of the second cartridge was filled with the treatment liquid.
  • the first cartridge and the second cartridge were attached to the inkjet printer.
  • the ink filled in the first ink chamber is ejected from the recording head of the inkjet printer.
  • the processing liquid filled in the second ink chamber is discharged from the processing head of the inkjet printer.
  • ink was ejected from the recording head to the printing target so that the ink ejection amount was 20 g / m 2, and a solid image of the ink was formed.
  • the treatment liquid was discharged from the processing head to the printing target so that the discharge amount of the treatment liquid was 20 g / m 2.
  • a processing film having the same size as the solid image was formed on the solid image of the ink by the processing liquid.
  • the printing object was heated at 160 ° C. for 3 minutes to dry the ink and the treatment liquid to obtain a printed material for evaluation.
  • the degree of coloring of the white cotton cloth for friction is 9 levels (in descending order of the degree of contamination, 1st grade, 1st to 2nd grade, 2nd grade, 2nd to 3rd grade, 3rd grade, 3rd to 4th grade, 4th grade, 4th to higher grade. Judgment was made in 5th grade and 5th grade).
  • the friction fastness is better as the degree of coloring of the white cotton cloth for friction is smaller (closer to the fifth grade).
  • the dry friction fastness and the wet friction fastness were evaluated according to the following criteria.
  • the determination result of the drying test was defined as the dry friction fastness
  • the determination result of the wet test was defined as the wet friction fastness.
  • the determined friction fastness and the evaluation result are shown in Table 2.
  • Evaluation A Dry friction fastness is grade 4 or higher.
  • Evaluation B Dry friction fastness is grade 3-4.
  • Evaluation C Dry friction fastness is grade 3 or lower.
  • Evaluation A Wet friction fastness is grade 3 or higher.
  • Evaluation B Wet friction fastness is 2nd to 3rd grade.
  • Evaluation C Wet friction fastness is grade 2 or lower.
  • the unused printing object was folded in half along the warp (in the length direction), and the distance (loop height) between the lower fabric and the upper fabric at the crease was measured.
  • the measured loop height of the unused printing target was defined as the loop height before printing.
  • the region where the solid image of the print for evaluation was formed was folded in half along the warp (in the length direction), and the loop height was measured.
  • the measured loop height of the printed material for evaluation was defined as the loop height after printing.
  • Evaluation A The rate of change in loop height is 125% or less.
  • Evaluation B The rate of change in loop height is more than 125% and 130% or less.
  • Evaluation C The rate of change in loop height is more than 130%.
  • the printing target on which the solid image of the ink was formed was impregnated with the treatment liquid (A-1), then taken out from the treatment liquid (A-1) and lightly squeezed. Specifically, the printing target was narrowed down so that the pickup rate was 100% and the coating amount of the treatment liquid (A-1) was 120 g / m 2.
  • the squeezed printing object was heated at 160 ° C. for 3 minutes to dry the ink and the treatment liquid to obtain a printed material for evaluation.
  • the treatment liquids (A-1) to (A-7) had the following configurations.
  • the treatment liquid contained emulsified particles containing silicone oil and an aqueous medium.
  • the content of silicone oil in the treatment liquid was 5% by mass or more and 15% by mass or less.
  • the viscosity of the silicone oil was 1000 mm 2 / s or more.
  • the silicone oil contained at least an ionic group-containing silicone oil (more specifically, an amino-modified silicone oil, a carboxy-modified silicone oil, a phenol-modified silicone oil, or a silanol-modified silicone oil).
  • the treatment liquids (B-1) to (B-5) did not have at least one of the above configurations.
  • the evaluation of the dry friction fastness, the evaluation of the wet friction fastness, and the suppression of the decrease in tactile sensation are suppressed.
  • the rating was A or B.
  • the evaluation of the dry friction fastness and the wet friction fastness Of the evaluation and the evaluation of suppressing the decrease in tactile sensation at least one evaluation was C.
  • the treatment liquid (B-4) could not be prepared. Therefore, it is determined that the treatment liquid of the present invention including the treatment liquids (A-1) to (A-7) can form a printed material having excellent frictional fastness and suppress a decrease in the tactile sensation of the printed material. Will be done.
  • the dry friction fastness of the printed material formed by using the treatment liquid (A-1) having a discharge amount or a coating amount of 10 g / m 2 or more and 120 g / m 2 or less was evaluated.
  • the evaluation of the wet friction fastness and the evaluation of the suppression of the decrease in tactile sensation were A or B. Therefore, by discharging or applying the treatment liquid of the present invention at a discharge amount or coating amount of 10 g / m 2 or more and 120 g / m 2 or less, a printed material having excellent frictional fastness can be formed, and the tactile sensation of the printed material is reduced. Is judged to be able to be suppressed.
  • the dry friction fastness was evaluated as A for the printed material formed by using the treatment liquid (A-1) having a discharge amount of 15 g / m 2 or more and 30 g / m 2 or less. rice field. Therefore, it is determined that by discharging the treatment liquid of the present invention at a discharge rate of 15 g / m 2 or more and 30 g / m 2 or less, a printed matter having particularly excellent dry friction fastness can be formed.
  • the treatment liquid, the inkjet printing apparatus, and the inkjet printing method according to the present invention can be used to form a printed matter.

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WO2023037923A1 (ja) * 2021-09-07 2023-03-16 京セラ株式会社 インクジェット用処理液、インクジェット捺染装置、およびインクジェット捺染方法
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