Classifications

• • 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
  • C09D11/32—Inkjet printing inks characterised by colouring agents
  • C09D11/322—Pigment 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
  • C09D11/36—Inkjet printing inks based on non-aqueous solvents
• • 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
• • 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
  • D06P1/5285—Polyurethanes; Polyurea; Polyguanides
• • 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 disclosure relates to textile printing ink compositions.
• Patent Document 1 discloses a pigment textile ink composition containing resin particles, water and an organic solvent. It is disclosed that the resin particles have a glass transition temperature of 5° C. or less, are contained in an amount of 6.5% by mass or more with respect to the total amount of the ink composition, and have a film elongation of 400% or more. It is described that it is 600% or less and the film strength is 50 MPa or more.
• a textile printing ink composition related to one aspect of the present disclosure includes a resin, a pigment, an aqueous medium, and an organic solvent, and the resin has an elongation of 500% or more and 750% or less and a tensile strength of 25 MPa or more. It contains a first resin that is 40 MPa or less and a second resin that has an elongation of 250% or more and 550% or less and a tensile strength of 55 MPa or more and 90 MPa or less.
• a textile printing ink composition according to an embodiment of the present disclosure includes a resin, a pigment, an aqueous medium, and an organic solvent.
• the resin is a first resin having an elongation of 500% or more and 750% or less and a tensile strength of 25 MPa or more and 40 MPa or less, and a first resin having an elongation of 250% or more and 550% or less and a tensile strength of 55 MPa or more and 90 MPa.
• the resin of this embodiment has at least two resins.
• the first resin has an elongation of 500% or more and 750% or less and a tensile strength of 25 MPa or more and 40 MPa or less.
• the second resin has an elongation of 250% or more and 550% or less and a tensile strength of 55 MPa or more and 90 MPa or less.
• the resulting printed material has friction It is considered that both fastness and texture can be achieved.
• the more preferable elongation of the first resin is 600% or more and 700% or less, and the more preferable tensile strength is 35 MPa or more and 40 MPa or less.
• any resin having elongation and tensile strength as described above can be used without particular limitation, but it is preferable to use one supplied in the form of an aqueous emulsion. Considering the ease of the work of adjusting the ink by blending with pigments, solvents and water, and dispersing it as uniformly as possible in the ink, it is a state in which the resin is stably dispersed using water as a dispersion medium. It is preferable to add to the ink in the form of a resin emulsion.
• water-dispersible resins examples include polyurethane resins, styrene-acrylic resins, silicone resins, polyester resins, and acrylic resins. Copolymers obtained by copolymerizing two or more of the above resins, such as styrene acrylic resin-polyester resin copolymers and styrene acrylic resin-urethane resin copolymers, can also be used.
• the resin may have a reactive functional group, or may be a polymer containing a cross-linking agent.
• part of the resin is cross-linked and strongly bonded to the fabric when transferred to the fabric, causing an increase in molecular weight or a curing reaction, which is thought to result in better adhesion.
• a resin such as a urethane resin that has a molecular structure that is flexible even after curing.
• Specific urethane resins are not particularly limited, and include polyurethane resins obtained by reacting polyols and polyisocyanates. More specifically, for example, polypropylene glycol, polyethylene glycol, polytetramethylene glycol, poly(ethylene adipate), poly(diethylene adipate), poly(propylene adipate), poly(tetramethylene adipate), poly(hexamethylene adipate) , poly- ⁇ -caprolactone, poly(hexamethylene carbonate), polyols such as silicone polyols, tolylene diisocyanate, 4,4-diphenylmethane diisocyanate, xylylene diisocyanate, naphthalene diisocyanate, hexamethylene diisocyanate, hydrogenated tolylene diisosanate, Hydrogenated 4,4-diphenylmethane diisocyanate, isophorone diisocyanate, tetramethylxylylene
• styrene acrylic resin one or more selected from styrene-(meth)acrylic acid copolymers and styrene-(meth)acrylic acid-(meth)acrylic acid ester copolymers can be used in combination.
• Examples of the (meth)acrylic esters include benzyl (meth)acrylate, cyclohexyl (meth)acrylate, methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, butyl (meth)acrylate, hexyl (meth)acrylate, Acrylate, octyl (meth) acrylate, lauryl (meth) acrylate, 2-ethylhexyl (meth) acrylate, 2-ethylhexyl carbitol (meth) acrylate, phenol EO-modified (meth) acrylate, isobornyl (meth) acrylate, dicyclopentenyl ( Meth)acrylate, dicyclopentanyl (meth)acrylate, dicyclopentenyloxyethyl (meth)acrylate and the like can be used.
• silicone resin side chain type, single end type, both end type, side chain both end type modified silicone oil, etc. can be used.
• Polyester resins include terephthalic acid, isophthalic acid, orthophthalic acid, 2,6-naphthalenedicarboxylic acid, sodium sulfoisophthalate, succinic acid, adipic acid, azelaic acid, sebacic acid, 1,10-decanedicarboxylic acid, dimer acid, and the like.
• trivalent or higher polyvalent carboxylic acids such as divalent carboxylic acids, trimellitic acid and pyrrolimethic acid, ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1, 5-pentanediol, 1,6-hexanediol, 1,9-nonanediol, neopentyl glycol, 3-methyl-1,5-pentanediol, diethylene glycol, triethylene glycol, polytetraethylene glycol, 1,4-cyclohexane Dihydric alcohols such as dimethanol and ethylene oxide adducts of bisphenol A, polymers formed by ester bonding of trihydric or higher polyhydric alcohols such as trimethylolpropane and pentaerythritol, or block copolymers and random copolymers thereof , graft copolymers, etc. can be used.
• divalent carboxylic acids such as di
• the second resin has a more preferable elongation of 250% or more and 300% or less, and a more preferable tensile strength of 60 MPa or more and 90 MPa or less.
• any resin having elongation and tensile strength as described above can be used without particular limitation.
• various resins listed above as the first resin can be used.
• the same type of resin or different types of resin may be used for the first resin and the second resin.
• the compatibility between the resins can be enhanced, and a uniform coating film can be obtained.
• the weight ratio of the first resin to the second resin is preferably about 0.6 to 1.7.
• both friction fastness and hand feel can be achieved, and it is considered that the dry friction fastness is particularly excellent.
• a more preferable range of the weight ratio is 0.8 or more and 1.2 or less.
• the resin of the present embodiment contains the first resin and the second resin, it may contain another resin other than the first resin and the second resin within a range that does not hinder the effects of the present disclosure. You can
• the content of the resin (total of the first resin and the second resin) in the ink composition of the present embodiment is 6% by mass or more with respect to the entire ink composition. From the viewpoint of improving the texture, the content is preferably 9% by mass or less. A more preferable content is 7% by mass or more and 8% by mass or less.
• pigment A dispersible pigment that exists dispersed in water, for example, can be used as the pigment to be blended in the ink composition of the present embodiment.
• the volume median diameter (D 50 ) of the pigment is preferably 30 nm or more and 250 nm or less, more preferably 70 nm or more and 160 nm or less. preferable.
• the measured value of the volume median diameter (D 50 ) is the median diameter measured using a laser diffraction/scattering particle size distribution analyzer ("LA-950" manufactured by Horiba, Ltd.). be.
• azo pigments such as azo lakes, insoluble azo pigments, condensed azo pigments, and chelate azo pigments
• examples include polycyclic pigments, dye lakes such as basic dye lakes and acid dye lakes, organic pigments such as nitro pigments, nitroso pigments, aniline black and daylight fluorescent pigments, and inorganic pigments such as carbon black.
• pigments for magenta or red include C.I. I. Pigment Red 2, C.I. I. Pigment Red 3, C.I. I. Pigment Red 5, C.I. I. Pigment Red 6, C.I. I. Pigment Red 7, C.I. I. Pigment Red 15, C.I. I. Pigment Red 16, C.I. I. Pigment Red 48:1, C.I. I. Pigment Red 53:1, C.I. I. Pigment Red 57:1, C.I. I. Pigment Red 122, C.I. I. Pigment Red 123, C.I. I. Pigment Red 139, C.I. I. Pigment Red 144, C.I. I. Pigment Red 149, C.I. I. Pigment Red 166, C.I. I. Pigment Red 177, C.I. I. Pigment Red 178, C.I. I. Pigment Red 222 and the like.
• C.I. I. Pigment Orange 31 C.I. I. Pigment Orange 43, C.I. I. Pigment Yellow 12, C.I. I. Pigment Yellow 13, C.I. I. Pigment Yellow 14, C.I. I. Pigment Yellow 15, C.I. I. Pigment Yellow 17, C.I. I. Pigment Yellow 74, C.I. I. Pigment Yellow 93, C.I. I. Pigment Yellow 94, C.I. I. Pigment Yellow 128, C.I. I. Pigment Yellow 138 and the like.
• the content of the pigment of the present embodiment is preferably 1% by mass or more and 12% by mass or less, more preferably 1% by mass or more and 7% by mass or less, relative to the weight of the entire ink composition.
• the content of the pigment is 1% by mass or more, the image density of the formed recorded matter can be improved.
• the content of the pigment is 12% by mass or less, an ink with high fluidity can be obtained.
• the ink composition of the present embodiment preferably contains an anionic pigment.
• the cationic polymer and anionic pigment contained in the treatment liquid used for printing together with the ink composition cause electrical reaction and aggregation on the surface of the recording object, so that the resin contained in the ink It can prevent things from penetrating. In other words, it is possible to prevent the resin from penetrating into the gaps between the fibers and binding the fibers together, thereby improving the texture (feel, etc.) of the fabric to be printed.
• the pigment is preferably dispersed in a dispersion containing a pigment dispersion resin and used as a pigment dispersion.
• Pigment dispersing resins that can be used in the present embodiment include, for example, styrene-acrylic acid copolymer, styrene-acrylic acid-acrylic acid alkyl ester copolymer, styrene-maleic acid copolymer, styrene-maleic acid-acrylic acid alkyl ester copolymer, styrene-methacrylic acid copolymer, styrene-methacrylic acid-acrylic acid alkyl ester copolymer, styrene-maleic acid half ester copolymer, vinylnaphthalene-acrylic acid copolymer, vinylnaphthalene- Examples thereof include alkali-soluble resins such as maleic acid copolymers. As necessary, these may be used singly or in combination of two or more.
• the aqueous medium contained in the ink composition of the present embodiment is a medium containing water as a main component.
• the aqueous medium may function as a solvent or as a dispersion medium.
• Specific examples of the aqueous medium include water or a mixture of water and a polar solvent.
• Examples of polar solvents contained in aqueous media include methanol, ethanol, isopropyl alcohol, butanol, and methyl ethyl ketone.
• Organic solvent contained in the ink composition of the present embodiment is not particularly limited, but examples thereof include polyols and glycol ethers.
• a polyol in the ink composition is preferable because the viscosity of the ink is suitably adjusted.
• a diol or triol is preferable as the polyol contained in the ink composition.
• Diols include, for example, glycol compounds, more specifically ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, and tetraethylene glycol.
• Triols include, for example, glycerin.
• the ink composition according to this embodiment may contain a surfactant in addition to the essential components (resin, pigment, aqueous medium, organic solvent) described above.
• a surfactant in addition to the essential components (resin, pigment, aqueous medium, organic solvent) described above.
• preferred surfactants include acetylene glycol-based surfactants and silicone-based surfactants.
• the content of the surfactant in the ink composition is generally preferably about 0.01 to 3.0% by mass, more preferably 0.1 to 1.0% by mass, relative to the entire ink composition. %.
• the ink composition of the present embodiment may optionally contain known additives (more specifically, dissolution stabilizers, drying inhibitors, antioxidants, viscosity modifiers, pH modifiers, and antifungal agents). etc.) may be further contained.
• the pH adjuster is not particularly limited, but examples include sodium hydroxide, triethanolamine, dimethylaminoethanol, and the like.
• the pH adjuster By including the pH adjuster in the ink composition, it is possible to adjust the ink composition to a desired pH.
• the content of the pH adjuster in the ink composition of the present disclosure is preferably 0.01% by mass or more and 1% by mass or less, and more preferably 0.05% by mass or more and 0.2% by mass or less.
• the content ratio of the pH adjuster is not limited to the above range, and may be appropriately adjusted according to the required pH of the ink composition, for example.
• a stirrer is used to mix a resin, a pigment, an aqueous medium, an organic solvent, and optionally added components (such as a surfactant).
• Manufactured by mixing is, for example, 1 minute or more and 30 minutes or less.
• the mixed liquid is centrifuged to remove coarse particles such as foreign matter and dust, and filtered to remove fine particles, thereby obtaining the ink composition of the present embodiment.
• the ink composition according to the present embodiment thus obtained is suitable for use in inkjet textile printing because the physical properties of the ink are adjusted for inkjet printing. can also be used.
• Example 1 (Preparation of pigment dispersion) A four-necked flask with a capacity of 1000 mL was equipped with a stirrer, a nitrogen inlet tube, a condenser (stirrer), and a dropping funnel. Subsequently, 100 g of isopropyl alcohol and 300 g of methyl ethyl ketone were put into the flask. Then, the content of the flask was heated to reflux at a temperature of 70° C. while bubbling nitrogen gas.
• styrene-acrylic acid resin having a mass average molecular weight (Mw) of 20000 and an acid value of 100 mgKOH/g was obtained.
• a cyan pigment (“Lionol (registered trademark) blue manufactured by Toyocolor Co., Ltd. FG-7330", component: copper phthalocyanine, color index: pigment blue 15:3) 15 parts by mass, 6 parts by mass of resin, 0.5 parts by mass of 1,2-octanediol, and 78 parts by mass of water (ion-exchanged water) .5 parts by mass. Also, the amount of sodium hydroxide (NaOH) required to neutralize the resin was added into the vessel. The pigment content in the obtained pigment dispersion is 14.5% by mass.
• an aqueous NaOH solution was added so that the pH of the contents of the vessel became 8.
• an aqueous NaOH solution having a mass 1.1 times the neutralization equivalent was added to the vessel.
• the mass of Na to be added into the vessel was calculated based on the mass of resin.
• the mass of water to be added into the vessel was calculated based on the sum of the mass of water contained in the NaOH aqueous solution and the mass of water generated by the neutralization reaction.
• media zirconia beads with a diameter of 0.5 mm
• the volume of the vessel was 70% by volume.
• the contents of the vessel were kneaded for 240 minutes at a temperature of 10° C. and a peripheral speed of 8 m/sec.
• the volume median diameter ( D50 ) of the pigment particles contained in the pigment dispersion was 100 nm.
• the volume median diameter (D 50 ) of the pigment particles contained in the pigment dispersion is measured using a dynamic light scattering particle size distribution device ("Zetasizer Nano" manufactured by Sysmex Corporation) as a measuring device. A liquid obtained by diluting the liquid 300 times with ion-exchanged water was measured.
• Example 2 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 4 parts by mass of urethane resin "Superflex (SF) 460" (Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 25 MPa, elongation 750%) as the first resin, Urethane resin "ETERNACOLL UW-1527DF” (manufactured by Ube Industries, Ltd., tensile strength 90 MPa, elongation 270%) as a second resin, 4 parts by mass, and nonionic surfactant (manufactured by Nissin Chemical Industry Co., Ltd. "Surfinol ( An ink of Example 2 was obtained in the same manner as in Example 1 except that 0.5 parts by mass of a glycol compound having an acetylene group) and 3 parts by mass of deionized water were used.
• urethane resin "Superflex (SF) 460” (Daiichi Kogyo Sei
• Example 3 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 4 parts by mass of urethane resin "Superflex 470" (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40 MPa, elongation 640%) as the first resin, and the second Urethane resin "ETERNACOLL UW-1527DF” (manufactured by Ube Industries, Ltd., tensile strength 90 MPa, elongation 270%) as a resin, 4 parts by mass, nonionic surfactant (manufactured by Nissin Chemical Industry Co., Ltd. "Surfinol (registered trademark) 420", component: a glycol compound having an acetylene group) and 0.5 parts by mass of ion-exchanged water were used.
• Example 4 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 4 parts by mass of urethane resin "Superflex 470" (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40 MPa, elongation 640%) as the first resin, and the second Urethane resin "Takelac W-6110" (manufactured by Mitsui Chemicals, Inc., tensile strength 55 MPa, elongation 550%) 4 parts by mass and nonionic surfactant (Nissin Chemical Industry Co., Ltd. "Surfinol (registered trademark) 420", component: a glycol compound having an acetylene group) and 0.5 parts by mass of ion-exchanged water were used.
• Example 5 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 5 parts by mass of urethane resin "Superflex 470" (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40 MPa, elongation 640%) as the first resin, and the second Urethane resin "ETERNACOLL UW-1527DF” (manufactured by Ube Industries, Ltd., tensile strength 90 MPa, elongation 270%) as a resin, 3 parts by mass, nonionic surfactant (manufactured by Nissin Chemical Industry Co., Ltd.
• Example 6 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 3 parts by mass of urethane resin "Superflex 470" (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40 MPa, elongation 640%) as the first resin, second Urethane resin "ETERNACOLL UW-1527DF” (manufactured by Ube Industries, Ltd., tensile strength 90 MPa, elongation 270%) as a resin, 5 parts by mass, nonionic surfactant (manufactured by Nissin Chemical Industry Co., Ltd.
• Example 7 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 4 parts by mass of urethane resin "Superflex 470" (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40 MPa, elongation 640%) as the first resin, and the second Urethane resin "Takelac W-6020" (manufactured by Mitsui Chemicals, Inc., tensile strength 60 MPa, elongation 480%) as a resin, 4 parts by mass, nonionic surfactant (manufactured by Nissin Chemical Industry Co., Ltd.
• Example 8 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 5.3 parts by mass of urethane resin "Superflex 470" (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40 MPa, elongation 640%) as the first resin, 2.7 parts by mass of urethane resin "ETERNACOLL UW-1527DF” (manufactured by Ube Industries, Ltd., tensile strength 90 MPa, elongation 270%) and nonionic surfactant (manufactured by Nissin Chemical Industry Co., Ltd.
• Example 8 “Surfinol (registered trademark) 420", component: a glycol compound having an acetylene group) 0.5 parts by mass, and an ink of Example 8 was obtained in the same manner as in Example 1 except that 3 parts by mass of deionized water was used.
• Example 9 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 2.9 parts by mass of urethane resin "Superflex 470" (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40 MPa, elongation 640%) as the first resin, 5.1 parts by mass of urethane resin "ETERNACOLL UW-1527DF” (manufactured by Ube Industries, Ltd., tensile strength 90 MPa, elongation 270%) as resin 2, and nonionic surfactant (manufactured by Nissin Chemical Industry Co., Ltd.
• “Surfinol (registered trademark) 420” component: a glycol compound having an acetylene group) 0.5 parts by mass, and 3 parts by mass of deionized water were used to obtain an ink of Example 9 in the same manner as in Example 1.
• Example 10 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 3 parts by mass of urethane resin "Superflex 470" (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40 MPa, elongation 640%) as the first resin, second Urethane resin "ETERNACOLL UW-1527DF” (manufactured by Ube Industries, Ltd., tensile strength 90 MPa, elongation 270%) as a resin, 3 parts by mass, nonionic surfactant (manufactured by Nissin Chemical Industry Co., Ltd.
• Example 11 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 4.5 parts by mass of urethane resin "Superflex 470" (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40 MPa, elongation 640%) as the first resin, 4.5 parts by mass of urethane resin "ETERNACOLL UW-1527DF” (manufactured by Ube Industries, Ltd., tensile strength 90 MPa, elongation 270%) and nonionic surfactant (Nissin Chemical Industry Co., Ltd.
• Example 12 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 2.5 parts by mass of urethane resin "Superflex 470" (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40 MPa, elongation 640%) as the first resin, 2.5 parts by mass of urethane resin "ETERNACOLL UW-1527DF” (manufactured by Ube Industries, Ltd., tensile strength 90 MPa, elongation 270%) and nonionic surfactant (manufactured by Nissin Chemical Industry Co., Ltd. "Surfinol (registered trademark) 420", component: glycol compound having an acetylene group) 0.5 parts by mass, and 3 parts by mass of ion-exchanged water were used.
• urethane resin "Superflex 470” manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40
• Example 13 20 parts by mass of pigment dispersion, 30 parts by mass of propylene glycol, 5 parts by mass of urethane resin "Superflex 470" (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., tensile strength 40 MPa, elongation 640%) as the first resin, and the second Urethane resin "ETERNACOLL UW-1527DF” (manufactured by Ube Industries, Ltd., tensile strength 90 MPa, elongation 270%) as a resin, 5 parts by mass, nonionic surfactant (manufactured by Nissin Chemical Industry Co., Ltd.
• Table 1 summarizes the compositions of the ink compositions of Examples and Comparative Examples obtained above.
• each resin was applied on a PET film so that the film thickness after drying was 500 ⁇ m, and dried at 25° C. and 50% RH for 12 hours. Next, after drying at 150° C. for 20 minutes, the sheet was peeled off to form a resin film.
• the elongation of the obtained resin film was measured at a measurement temperature of 20°C and a measurement speed of 200 mm/min.
• the elongation was measured by elongating the resin film, measuring the elongation length when the resin film was broken, and expressing the percentage as the elongation.
• the tensile strength of the resin was obtained by measuring the tensile strength of the resin at break.
• Table 2 summarizes the tensile strength and elongation of each resin used as the resin.
• An image forming apparatus (inkjet recording apparatus equipped with a line head, manufactured by Kyocera Document Solutions Co., Ltd.) was used as an evaluation apparatus, and the evaluation was performed under an environment of 25° C. and 50% RH. Polyester tropical 120 g/m 2 (manufactured by Toray Industries, Inc.) was used as a recording medium.
• a solid image of 28 cm x 3 cm was formed so that the amount of ink ejected from the recording head onto the recording medium was 35 pL (per pixel).
• the printed evaluation image was then dried at 160° C. for 3 minutes.
• the fabric and the printed image were folded in half, and the height of the fabric when bent in the direction perpendicular to the vertical direction was measured/recorded, and the texture was evaluated according to the following criteria as an evaluation value.
• An image forming apparatus (inkjet recording apparatus equipped with a line head, manufactured by Kyocera Document Solutions Co., Ltd.) was used as an evaluation apparatus, and the evaluation was performed under an environment of 25° C. and 50% RH. Polyester tropical 120 g/m 2 (manufactured by Toray Industries, Inc.) was used as a recording medium.
• a solid image of 28 cm x 3 cm was formed so that the amount of ink ejected from the recording head onto the recording medium was 35 pL (per pixel).
• the printed evaluation image was then dried at 160° C. for 3 minutes.
• the printed material was evaluated according to the dry test and wet test of the friction tester type II (Gakushin type) method described in JIS L-0849:2013 (test method for color fastness to rubbing).
• the friction cloth used was cotton cloth (Kanakin No. 3), and friction was measured using a friction tester (trade name: RT-200, manufactured by Daiei Kagaku Seiki Seisakusho Co., Ltd.). After rubbing, among the color transfer parts to the cotton cloth, three places with high color transfer density are visually determined, and the color is measured with a colorimeter (trade name: portable reflection densitometer RD-19 (manufactured by Gretag Macbeth)). The average optical density (cyan) was used to evaluate the degree of color transfer, that is, the friction fastness. In this test, it was judged to be practical if the dry friction fastness evaluation was C or higher and the wet friction fastness evaluation was E or higher.
• Evaluation criteria A: Optical density (cyan) of color transfer on cotton cloth after rubbing is less than 0.15 B: Optical density (cyan) of color transfer on cotton cloth after rubbing is 0.15 or more and less than 0.20 C: Cotton cloth after rubbing The optical density of color transfer (cyan) is 0.20 or more and less than 0.25 D: The optical density (cyan) of color transfer on the cotton cloth after rubbing is 0.25 or more and less than 0.30 E: The color of the cotton cloth after rubbing Transfer optical density (cyan) of 0.30 or more and less than 0.35 F: Color transfer optical density (cyan) on cotton cloth after rubbing is 0.35 or more

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• Inks, Pencil-Leads, Or Crayons (AREA)
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• Ink Jet Recording Methods And Recording Media Thereof (AREA)

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• 2022
  • 2022-10-28 CN CN202280045271.1A patent/CN117580917A/zh active Pending
  • 2022-10-28 EP EP22887190.1A patent/EP4342955A4/en active Pending
  • 2022-10-28 JP JP2023556682A patent/JP7437571B2/ja active Active
  • 2022-10-28 WO PCT/JP2022/040461 patent/WO2023074865A1/ja not_active Ceased
  • 2022-10-28 US US18/572,779 patent/US20240287330A1/en active Pending
• 2024
  • 2024-02-09 JP JP2024018370A patent/JP2024054279A/ja active Pending

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