WO2022173425A1 - Ensemble de fluides pour impression textile - Google Patents

Ensemble de fluides pour impression textile Download PDF

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Publication number
WO2022173425A1
WO2022173425A1 PCT/US2021/017401 US2021017401W WO2022173425A1 WO 2022173425 A1 WO2022173425 A1 WO 2022173425A1 US 2021017401 W US2021017401 W US 2021017401W WO 2022173425 A1 WO2022173425 A1 WO 2022173425A1
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WO
WIPO (PCT)
Prior art keywords
fabric
fixer
composition
examples
cationic
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Application number
PCT/US2021/017401
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English (en)
Inventor
Zhang-Lin Zhou
Xiaoqi Zhou
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Hewlett-Packard Development Company, L.P.
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Publication date
Application filed by Hewlett-Packard Development Company, L.P. filed Critical Hewlett-Packard Development Company, L.P.
Priority to PCT/US2021/017401 priority Critical patent/WO2022173425A1/fr
Publication of WO2022173425A1 publication Critical patent/WO2022173425A1/fr

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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
    • C09D11/54—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
    • 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
    • C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the 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
    • C09D11/02—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
    • C09D11/32—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
    • C09D11/30—Inkjet printing inks
    • C09D11/40—Ink-sets specially adapted for multi-colour inkjet printing
    • 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
    • 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
    • D06P1/54—Substances with reactive groups together with crosslinking agents
    • 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
    • D06P5/002—Locally enhancing dye affinity of a textile material by chemical means
    • 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

  • Inkjet printing is a non-impact printing method that utilizes electronic signals to control and direct droplets or a stream of ink to be deposited on media. Such technique has become a popular way of recording images on various media. Some of the reasons include low printer noise, variable content recording, capability of high-speed recording, and multi-color recording. As the popularity of inkjet printing increases, the types of use also increase providing demand for new ink compositions and substrates to be printed on. Such substrate can be textile. Textile printing can have various applications including the creation of signs, banners, artwork, apparel, wall coverings, window coverings, upholstery, pillows, blankets, flags, tote bags, clothing, etc.
  • FIG. 1 and 2 schematically illustrate an example fluid set for textile printing in accordance with the present disclosure
  • Figure 3 schematically illustrates an example printing kit for printing images on fabric substrates in accordance with the present disclosure
  • Figures 4 and 5 are flow diagrams illustrating example methods of printing images on fabric substrates in accordance with the present disclosure.
  • the surface modification refers to either surface coating with a chemical composition in the range of 5-50 gsm; or, as an alternative, a light coat weight method, so- called surface treatment is also used.
  • Surface treatment is usually to apply a chemical composition in a range of 0.2-10gsm.
  • Such modification composite is usually applied in a process of single or multiple passes from which the composition is disposed onto a media substrate.
  • the modification composition varies depends on the purpose of the treatment, including but not limited to, improve printing color vibrance, enhance image fastness to the environmental such as lighting, increase image resistance to mechanical damage such as scratching and rubbing, and build up the image washing resistance to the water and detergents.
  • we disclose a novel fluid sets which is able to modify textile such as, for example, cotton-based T-shirt textile surface for inkjet digital printing, in order to improve ink color vibrance and image washing fastness.
  • the present disclosure is drawn to fluid sets for textile printing, for example.
  • the fluid set is suitable for digital inkjet printing, via thermal inkjet printers, for examples, on a variety of textile fabrics, including cotton and cotton blends.
  • the present disclosure relates to a fluid set comprising a pre-treatment composition, including a polyaziridine polymeric network and an aqueous liquid vehicle, and an inkjet ink including a pigment, a polyurethane-based binder and an aqueous liquid vehicle.
  • the fluid set may further include a fixer composition including a cationic charged specie and a fixer vehicle.
  • the present disclosure is also drawn to a textile printing kit comprising a fabric substrate; a pre-treatment composition including a polyaziridine polymeric network and an aqueous liquid vehicle and an inkjet ink including a pigment, a polyurethane- based binder and an aqueous liquid vehicle.
  • the textile printing kit may further include a fixer composition including a cationic charged specie and a fixer vehicle.
  • the present disclosure also relates to a printing method for generating a print comprising the steps of applying a pre-treatment composition on a fabric substrate to form a pre-treatment layer, inkjet printing an ink composition on the pre-treatment layer to form a ink layer, and thermally curing the ink layer on the fabric substrate to form an image.
  • the method may further include the application of a fixer composition on the pre-treatment layer to form a fixer layer before the application of the ink layer.
  • the fluid set described herein when used to be printed on fabric substrates, is able to produce images that have very good print performances and also excellent durability.
  • the fluid set, described herein, when used to be printed on dark or black fabric substrates for examples have good opacity performances.
  • opacity specifically, it is an important printing quality parameter when white ink printed on dark or black substrates. It may be measured in terms of L* (or lightness) of the print generated with the ink composition or fluid set disclosed herein on a colored textile fabric. A greater L* value indicates a higher opacity and whiteness of the ink on the colored textile fabric.
  • L* is measured in the CIELAB color space and may be measured using any suitable color measurement instrument (such as those available from HunterLab or X-Rite).
  • the durability of a print on a fabric may be assessed by its ability to retain color after being exposed to washing. This is also known as washfastness. Washfastness can be measured in terms of DE.
  • DE refers to the change in the L*a*b* values of a color (e.g., cyan, magenta, yellow, black, red, green, blue, white) after washing.
  • DE can be calculated by different equations, such as the CIEDE1976 (or DE1976) color-difference formula, and the CIEDE2000 (or DE2000) color- difference formula.
  • DE can also be calculated using the color difference method of the Color Measurement Committee ( ⁇ ECMC).
  • the present disclosure relates to a fluid set comprising a pre-treatment composition, including a polyaziridine polymeric network and an aqueous liquid vehicle, and an inkjet ink, including a pigment, a polyurethane-based binder and an aqueous liquid vehicle.
  • the fluid set may further include a fixer composition including a cationic charged specie and a fixer vehicle.
  • the fluid set may be included in a textile printing kit with any example of the fabric substrate described below. It is to be understood that any example of the inkjet ink may be used in the examples of the fluid set. It is also to be understood that, when present, any example of the fixer composition may be used in the examples of the fluid set.
  • the fabric substrate may be used in the examples of the textile printing kit.
  • the fabric substrate is selected from the group consisting of cotton fabrics, cotton blend fabrics, nylon fabrics, nylon blend fabrics, silk fabrics, silk blend fabrics, wool fabrics, wool blend fabrics, and combinations thereof.
  • a fluid set 100 includes a pre-treatment composition 110 with a polyaziridine polymeric network and an aqueous liquid vehicle.
  • An inkjet ink composition 120 is also included, which comprises pigment, a polyurethane-based binder and an aqueous liquid vehicle.
  • a fluid set 100 includes a pre-treatment composition 110 with a polyaziridine polymeric network and an aqueous liquid vehicle; an inkjet ink composition 120, which comprises pigment, a polyurethane-based binder and an aqueous liquid vehicle.
  • a fixer composition 130 which comprises a cationic charged specie and a fixer vehicle, is also included.
  • the fluid set includes a pre-treatment composition, that is formulated for analog application.
  • the fixer composition, when present, and the ink composition are formulated for thermal inkjet printing.
  • the pre-treatment composition, the fixer composition when present, and the ink composition may be maintained in separate containers (e.g., respective reservoirs/fluid supplies of respective inkjet cartridges) or separate compartments (e.g., respective reservoirs/fluid supplies) in a single container (e.g., inkjet cartridge).
  • the pre-treatment composition can be an analog application fluid with a viscosity ranging from about lcps to about 500 cps (measured at 20 °C).
  • the fixer composition and the ink composition can both be digital printing fluids individually having viscosities from 1 cps to 30 cps at 25 °C.
  • the fluid set 100 may also be part of a textile printing kit 200.
  • the textile printing kit includes a fabric substrate 140, as well as the fluid set components shown and described in Figure 1 or 2.
  • the fluid set can include a pre-treatment composition 110 including a polyaziridine polymeric network and an aqueous liquid vehicle.
  • a ink composition 120 is also included, which comprises a pigment, a polyurethane-based binder and an aqueous liquid vehicle.
  • the fluid set can also include a fixer composition 130, which includes a cationic charged specie and a fixer vehicle.
  • the use of the pre-treatment composition can flatten the hairy fibers and also reduce the penetration of fixer and ink into the fabric, thus improving opacity and image quality in some instances.
  • the pre-treatment includes a polyaziridine polymeric network and an aqueous liquid vehicle.
  • the aqueous liquid vehicle consists of water.
  • the aqueous liquid vehicle consists of water and co-solvent.
  • the polyaziridine polymeric network is present in an amount ranging from about 0.5 wt % active to about 15 wt % active, based on a total weight of the pre-treatment composition.
  • the polyaziridine polymeric network can be present, in the inkjet ink, in an amount ranging from about 1 wt % active to about 10 wt % active based on the total weight of the pre-treatment composition.
  • the polyaziridine polymeric network can be present, in the pre-treatment composition, in an amount ranging from about 1 wt % active to about 5 wt % active based on the total weight of the pre-treatment composition.
  • Examples of the pre-treatment composition 110 disclosed herein may have a viscosity ranging from about 1 centipoises (cps) to about 500 cps at a temperature of about 20°C (measured with a Brookfield viscometer). In some other examples, the viscosity of the pre-treatment composition ranges from about 2 cP to about 100 cps. In yet some other examples, the viscosity of the pre-treatment composition ranges from about 2 cps to about 80 cps. It is to be understood that the viscosity of the pre-treatment composition may be adjusted for the type of analog coater that is to be used.
  • the polyaziridine polymeric network is a polymeric aziridine crosslinker or crosslinking agent.
  • the “crosslinking agent” or “crosslinker” is defined here as the chemical with functional groups capable to form a crosslinking reaction with other reactive groups on textile substrate, ink pigments and ink binders such as amine, carboxyl, hydroxyl, and thiol upon certain condition such as heating at 50 °C to 200 °C.
  • the polyaziridine polymeric network compound can be selected from the group consisting of branched organic backbones with several pendant, chemically bound ethylene or propylene imine groups attached.
  • the polyaziridine compound is selected from the group consisting of N-aminoethyl-N-aziridilethylamine, N,N-bis-2- aminopropyl-N-aziridilethylamine, N-3,6,9-triazanonylaziridine, the bis and tris aziridines of di and tri acrylates of alkoxylated polyols, the trisaziridine of the tri-acrylate of the adduct of glycerine and propylene oxide; the trisaziridine of the tri-acrylate of the adduct of trimethylolpropane and ethylene oxide and the trisaziridine of the tri-acrylate of the adduct of pentaerythritol and propylene oxide.
  • the weight average molecular weight of the polymeric aziridine network is greater than 1,000 Daltons (g/mol). In some other examples, the weight average molecular weight of the polymeric aziridine network is greater than 2,000 Daltons (g/mol) as measured by gel permeation chromatography.
  • the polyaziridine polymeric network present in the pre-treatment may be selected from following aziridine polymers such as, but not limited to, structure : I, II, III and IV.
  • m and n represent any integers greater than 8 to make the whole molecular weight over 1000.
  • the Polyaziridine with polymer structure indicated I can be found from supplier DSM under the trade name of NeoAdd ® PAX 523, and thus is used as the example in the current disclosure.
  • the polyaziridine polymeric network present in the pre- treatment composition is a network of polymeric aziridine selected from the structure: I, II, III or IV identified above.
  • the polyaziridine polymeric network present in the pre- treatment composition (110) can be a polymeric network is created by using cross-linkable polymeric aziridine as shown in the structure I- IV above. Further it can also be selected from polyaziridine with multiple polymer chain as shown below:
  • the pre-treatment composition includes a polyaziridine polymeric network and an aqueous liquid vehicle.
  • the liquid vehicle can be water based liquid vehicle that can be similar or different from the liquid vehicle that is part of the ink composition.
  • the liquid vehicle can be environmentally friendly solvents such as ethyl acetate or propylene glycol methyl ether acetate (PGMEA).
  • PMEA propylene glycol methyl ether acetate
  • the pre-treatment composition can include water as liquid vehicle for the polymeric network.
  • the amount of water present in the coating composition is comprised between 20 wt % and 95 wt % of the total weight of the imagereceiving layer.
  • the inkjet ink when inkjet printed on a fabric substrate, may generate prints that have good printing performances as well as a desirable L* value, which mean thus that good durability and washfastness performance.
  • the inkjet ink includes a pigment, a polyurethane-based binder and an aqueous liquid vehicle.
  • the inkjet ink consists of these components with no other components.
  • the inkjet ink consists of a pigment, a polyurethane-based binder, and an aqueous liquid vehicle.
  • the aqueous liquid vehicle consists of water and a co- solvent.
  • the inkjet ink may include additional components.
  • Examples of the inkjet ink disclosed herein may be used in a thermal inkjet printer or in a piezoelectric printer to print on a fabric substrate.
  • the viscosity of the inkjet ink may be adjusted for the type of printhead by adjusting the co-solvent level, adjusting the polyurethane- based binder level, and/or adding a viscosity modifier.
  • the viscosity of the inkjet ink may be modified to range from about 1 cP to about 9 cP (at 20°C to 25°C).
  • the viscosity of the inkjet ink may be modified to range from about 2 cP to about 20 cP (at 20°C to 25°C), depending on the type of the printhead that is being used (e.g., low viscosity printheads, medium viscosity printheads, or high viscosity printheads).
  • the colorant selected for use can include a pigment, which can be any of a number of pigments of any of a number of primary or secondary colors, or can be black or white, for example. More specifically, colors can include cyan, magenta, yellow, red, blue, violet, red, orange, green, etc.
  • the ink composition can be a black ink with a carbon black pigment.
  • the ink composition can be a cyan or green ink with a copper phthalocyanine pigment, e.g., Pigment Blue 15:0, Pigment Blue 15:1; Pigment Blue 15:3, Pigment Blue 15:4, Pigment Green 7, Pigment Green 36, etc.
  • the ink composition can be a magenta ink with a quinacridone pigment or a co-crystal of quinacridone pigments.
  • Example quinacridone pigments that can be utilized can include PR122, PR192, PR202, PR206, PR207, PR209, P048, P049, PV19, PV42, or the like. These pigments tend to be magenta, red, orange, violet, or other similar colors.
  • the quinacridone pigment can be PR122, PR202, PV19, or a combination thereof.
  • the ink composition can be a yellow ink with an azo pigment, e.g., PY74 and PY155.
  • pigments include the following, which are available from BASF Corp.: Paliogen ® Orange, Heliogen ® Blue L 6901F, Heliogen ® Blue NBD 7010, Heliogen ® Blue K 7090, Heliogen ® Blue L 7101F, Paliogen ® Blue L 6470, Heliogen ® Green K 8683, Heliogen ® Green L 9140, Chromophtal ® Yellow 3G, Chromophtal ® Yellow GR, Chromophtal ® Yellow 8G, Igrazin ® Yellow 5GT, and Igralite ® Rubine 4BL.
  • the following pigments are available from Degussa Corp.: Color Black FWI, Color Black FW2, Color Black FW2V, Color Black 18, Color Black, FW200, Color Black 5150, Color Black SI 60, and Color Black 5170.
  • the following black pigments are available from Cabot Corp.: REGAL ® 400R, REGAL ® 330R, REGAL ® 660R, MOGUL ® L, BLACK PEARLS ® L, Monarch ® 1400, Monarch ® 1300, Monarch ® 1100, Monarch ® 1000, Monarch ® 900, Monarch ® 880, Monarch ® 800, and Monarch ® 700.
  • the following pigments are available from Orion Engineered Carbons GMBH: Printex ® U, Printex ® V, Printex ® 140U, Printex ® 140V, Printex ® 35, Color Black FW 200, Color Black FW 2, Color Black FW 2V, Color Black FW 1, Color Black FW 18, Color Black S 160, Color Black S 170, Special Black 6, Special Black 5, Special Black 4A, and Special Black 4.
  • the following pigment is available from DuPont: Ti-pure ® R- 101.
  • the following pigments are available from Heubach: Monastral ® Magenta, Monastral ® Scarlet, Monastral ® Violet R, Monastral ® Red B, and Monastral ® Violet Maroon B.
  • the following pigments are available from Clariant: Dalamar ® Yellow YT-858-D, Permanent Yellow GR, Permanent Yellow G, Permanent Yellow DHG, Permanent Yellow NCG-71, Permanent Yellow GG, Hansa Yellow RA, Hansa Brilliant Yellow 5GX-02, Hansa Yellow-X, Novoperm ® Yellow HR, Novoperm ® Yellow FGL, Hansa Brilliant Yellow 10GX, Permanent Yellow G3R-01, Hostaperm ® Yellow H4G, Hostaperm ® Yellow H3G, Hostaperm ® Orange GR, Hostaperm ® Scarlet GO, and Permanent Rubine F6B.
  • the following pigments are available from Sun Chemical: Quindo ® Magenta, Indofast ® Brilliant Scarlet, Quindo ® Red R6700, Quindo ® Red R6713, Indofast ® Violet, L74-1357 Yellow, L75-1331 Yellow, L75-2577 Yellow, and LHD9303 Black.
  • the following pigments are available from Birla Carbon: Raven ® 7000, Raven ® 5750, Raven ® 5250, Raven ® 5000 Ultra ® II, Raven ® 2000, Raven ® 1500, Raven ® 1250, Raven ® 1200, Raven ® 1190 Ultra ® .
  • Raven ® 1170, Raven ® 1255, Raven ® 1080, and Raven ® 1060 The following pigments are available from Mitsubishi Chemical Corp.: No. 25, No.
  • the colorant may be a white pigment, such as titanium dioxide, or other inorganic pigments such as zinc oxide and iron oxide.
  • a cyan color pigment may include C.I. Pigment Blue -1, -2, -3, -15, -15:1,-15:2, -15:3, -15:4, -16, -22, and -60; magenta color pigment may include C.I. Pigment Red -5, -7, -12, -48, -48:1, -57, -112, -122, -123, -146, -168, -177, -184, -202, and C.I. Pigment Violet-19; yellow pigment may include C.I.
  • Black pigment may include carbon black pigment or organic black pigment such as aniline black, e.g., C.I. Pigment Black 1. While several examples have been given herein, it is to be understood that any other pigment can be used that is useful in color modification, or dye may even be used in addition to the pigment.
  • pigments and dispersants are described separately herein, but there are pigments that are commercially available which include both the pigment and a dispersant suitable for ink composition formulation.
  • Specific examples of pigment dispersions that can be used, which include both pigment solids and dispersant are provided by example, as follows: HPC-K048 carbon black dispersion from DIC Corporation (Japan), HSKBPG-l l-CF carbon black dispersion from Dom Pedro (USA), HPC-C070 cyan pigment dispersion from DIC Corporation, CABOJET ® 250C cyan pigment dispersion from Cabot Corporation (USA), 17- SE-126 cyan pigment dispersion from Dom Pedro, HPF-M046 magenta pigment dispersion from DIC Corporation, CABOJET ® 265M magenta pigment dispersion from Cabot Corporation, HPJ-Y001 yellow pigment dispersion from DIC Corporation, 16-SE-96 yellow pigment dispersion from Dom Pedro, or Emacol SF Yellow AE2060F yellow pigment dispersion
  • the pigment(s) can be dispersed by a dispersant that is adsorbed or ionically attracted to a surface of the pigment, or can be covalently attached to a surface of the pigment as a self-dispersed pigment.
  • the dispersant can be an acrylic dispersant, such as a styrene (meth)acrylate dispersant, or other dispersant suitable for keeping the pigment suspended in the liquid vehicle.
  • the styrene (meth)acrylate dispersant can be used, as it can promote p-stacking between the aromatic ring of the dispersant and various types of pigments.
  • the styrene (meth)acrylate dispersant can have a weight average molecular weight from 4,000 Mw to 30,000 Mw. In another example, the styrene-acrylic dispersant can have a weight average molecular weight of 8,000 Mw to 28,000 Mw, from 12,000 Mw to 25,000 Mw, from 15,000 Mw to 25,000 Mw, from 15,000 Mw to 20,000 Mw, or about 17,000 Mw. Regarding the acid number, the styrene (meth)acrylate dispersant can have an acid number from 100 to 350, from 120 to 350, from 150 to 300, from 180 to 250, or about 214, for example.
  • Example commercially available styrene-acrylic dispersants can include Joncryl ® 671, Joncryl ® 71, Joncryl ® 96, Joncryl ® 680, Joncryl ® 683, Joncryl ® 678, Joncryl ® 690, Joncryl ® 296, Joncryl ® 671, Joncryl ® 696 or Joncryl ® ECO 675 (all available from BASF Corp., Germany).
  • the inkjet ink includes a polyurethane-based binder.
  • the polyurethane-based binders are non-crosslinked polyurethane-based binders.
  • “non-crosslinked” refers to a polymer that is not crosslinked with a crosslinker.
  • the polyurethane-based binder is selected from the group consisting of a polyester- polyurethane binder, a polyether-polyurethane binder, a polycarbonate-polyurethane binder, and combinations thereof.
  • the inkjet ink includes a polyester-polyurethane binder.
  • the polyester-polyurethane binder is a sulfonated polyester-polyurethane binder.
  • the sulfonated polyester-polyurethane binder can include diaminesulfonate groups.
  • the non-crosslinked polyurethane-based binder is the polyester-polyurethane binder
  • the polyester-polyurethane binder is a sulfonated polyester-polyurethane binder, and is one of: i) an aliphatic compound including multiple saturated C 4 to C 10 carbon chains and/or an alicyclic carbon moiety, that is devoid of an aromatic moiety, or ii) an aromatic compound including an aromatic moiety and multiple saturated carbon chain portions ranging from C 4 to C 10 in length.
  • the sulfonated polyester-polyurethane binder can be anionic.
  • the sulfonated polyester-polyurethane binder can also be aliphatic, including saturated carbon chains as part of the polymer backbone or as a side-chain thereof, e.g., C 2 to C 10 , C 3 to C 8 , or C 3 to C 6 alkyl.
  • These polyester-polyurethane binders can be described as “alkyl” or “aliphatic” because these carbon chains are saturated and because they are devoid of aromatic moieties.
  • Impranil ® DLN-SD (CAS# 375390-41-3; Mw 133,000; Acid Number 5.2; Tg -47°C; Melting Point 175-200°C) from Covestro.
  • Example components used to prepare the Impranil ® DLN-SD or other similar anionic aliphatic polyester-polyurethane binders can include pentyl glycols (e.g., neopentyl glycol); C4 to C10 alkyldiol (e.g., hexane- 1,6-diol); C 4 to C 10 alkyl dicarboxylic acids (e.g., adipic acid); C4-C10 alkyldiamine (e.g., (2, 4, 4)-trimethylhexane- 1,6- diamine (TMD), isophorone diamine (IPD) ); C4 to C10 alkyl diisocyanates (e.g., hexamethylene diisocyanate (HDI), (2, 4, 4)-trimethylhexane- 1,6-diisocyanate (TMDI)); alicyclic diisocyanates (e.g., pentyl glycols (e
  • IPDI isophorone diisocyanate
  • H6XDI 1,3- bis(isocyanatomethyl)cyclohexane
  • diamine sulfonic acids e.g., 2-[(2- aminoethyl)amino]ethanesulfonic acid
  • the sulfonated polyester-polyurethane binder can be aromatic (or include an aromatic moiety) and can include aliphatic chains.
  • An example of an aromatic polyester-polyurethane binder that can be used is Dispercoll ® U42 (CAS# 157352-07-3).
  • Example components used to prepare the Dispercoll ® U42 or other similar aromatic polyester- polyurethane binders can include aromatic dicarboxylic acids, e.g., phthalic acid; C 4 to C 10 alkyl dialcohols (e.g., hexane- 1,6-diol); C 4 to C 10 alkyl diisocyanates (e.g., hexamethylene diisocyanate (HDI)); diamine sulfonic acids (e.g., 2-[(2-aminoethyl)amino]ethanesulfonic acid); etc.
  • aromatic dicarboxylic acids e.g., phthalic acid
  • C 4 to C 10 alkyl dialcohols e.g., hexane- 1,6-diol
  • C 4 to C 10 alkyl diisocyanates e.g., hexamethylene diisocyanate (HDI)
  • diamine sulfonic acids e
  • polyester-polyurethanes can also be used, including Impranil ® DL 1380, which can be somewhat more difficult to jet from thermal inkjet printheads compared to Impranil ® DLN-SD and Dispercoll ® U42, but still can be acceptably jetted in some examples, and can also provide acceptable washfastness results on a variety of fabric types.
  • Impranil ® DL 1380 which can be somewhat more difficult to jet from thermal inkjet printheads compared to Impranil ® DLN-SD and Dispercoll ® U42, but still can be acceptably jetted in some examples, and can also provide acceptable washfastness results on a variety of fabric types.
  • the polyester-polyurethane binders disclosed herein may have a weight average molecular weight (Mw, g/mol or Daltons) ranging from about 20,000 to about 300,000.
  • Mw weight average molecular weight
  • the non-crosslinked polyurethane-based binder is the polyester-polyurethane binder
  • the polyester-polyurethane binder has a weight average molecular weight ranging from about 20,000 Mw to about 300,000 Mw.
  • the weight average molecular weight can range from about 50,000 to about 500,000, from about 100,000 to about 400,000, or from about 150,000 to about 300,000.
  • the polyester-polyurethane binders disclosed herein may have an acid number that ranges from about 1 mg KOH/ g to about 50 mg KOH/g.
  • the non-crosslinked polyurethane-based binder is the polyester-polyurethane binder
  • the polyester-polyurethane binder has an acid number that ranges from about 1 mg KOH/ g to about 50 mg KOH/g.
  • the acid number of the polyester-polyurethane binder can range from about 1 mg KOH/g to about 200 mg KOH/g, from about 2 mg KOH/g to about 100 mg KOH/g, or from about 3 mg KOH/g to about 50 mg KOH/g.
  • the term “acid number” refers to the mass of potassium hydroxide (KOH) in milligrams that is used to neutralize one gram of the polyester-polyurethane binder.
  • the term “acid number” refers to the mass of potassium hydroxide (KOH) in milligrams that is used to neutralize one (1) gram of a particular substance. The test for determining the acid number of a particular substance may vary, depending on the substance.
  • a known amount of a sample of the polyester- polyurethane binder may be dispersed in water and the aqueous dispersion may be titrated with a polyelectrolyte titrant of a known concentration.
  • a current detector for colloidal charge measurement may be used.
  • An example of a current detector is the Miitek PCD-05 Smart Particle Charge Detector (available from BTG). The current detector measures colloidal substances in an aqueous sample by detecting the streaming potential as the sample is titrated with the polyelectrolyte titrant to the point of zero charge.
  • An example of a suitable polyelectrolyte titrant is poly(diallyldimethylammonium chloride) (i.e., PolyDADMAC).
  • the average particle size of the polyester-polyurethane binders disclosed herein may range from about 20 nm to about 500 nm.
  • the sulfonated polyester-polyurethane binder can have an average particle size ranging from about 20 nm to about 500 nm, from about 50 nm to about 350 nm, or from about 100 nm to about 350 nm.
  • the particle size of any solids herein, including the average particle size of the dispersed polymer binder can be determined using a NANOTRAC ® Wave device, from Microtrac, e.g., NANOTRAC ® Wave II or NANOTRAC ® 150, etc., which measures particles size using dynamic light scattering.
  • Average particle size can be determined using particle size distribution data (e.g., volume weighted mean diameter) generated by the NANOTRAC ® Wave device.
  • poly ether-polyurethane binder examples include Impranil ® LP DSB 1069, Impranil ® DLE, Impranil ® DAH, or Impranil ® DL 1116 (Covestro (Germany)); or Hydran ® WLS-201 or Hydran ® WLS-201K (DIC Corp. (Japan)); or Takelac ® W-6061T or Takelac ® WS-6021 (Mitsui (Japan)).
  • the inkjet ink include a polycarbonate-polyurethane binder.
  • polycarbonate-polyurethanes that may be used as the non-crosslinked polyurethane-based binder include Impranil ® DLC-F or Impranil ® DL 2077 (Covestro (Germany)); or Hydran ® WLS-213 (DIC Corp. (Japan)); or Takelac ® W-6110 (Mitsui (Japan)).
  • the polyurethane-based binder is present in an amount ranging from about 2 wt% active to about 20 wt% active, based on a total weight of the inkjet ink.
  • the polyurethane-based binder can be present, in the inkjet ink, in an amount ranging from about 2 wt% active to about 15 wt% active based on the total weight of the inkjet ink. In still another example, the polyurethane-based binder can be present, in the inkjet ink, in an amount of about 8 wt% active, based on the total weight of the inkjet ink.
  • the polyurethane-based binder (prior to being incorporated into the inkjet ink) may be dispersed in water alone or in combination with an additional water soluble or water miscible co-solvent. It is to be understood however, that the liquid components of the binder dispersion become part of the liquid vehicle in the inkjet ink.
  • Both the pre-treatment composition and the inkjet ink composition include an aqueous liquid vehicle. By aqueous, it is meant herein that water represents more than 50 % of the total weight of the liquid vehicle.
  • liquid vehicle may refer to the liquid with which the polyaziridine polymeric network (for the pre-treatment composition) and/o the pigment (dispersion), the polyurethane-based binder (dispersion), and the additive (solution) are mixed to form the pre-treatment composition or the inkjet ink.
  • the liquid vehicle may include water and any of a co-solvent, an anti-decel agent, a surfactant, an antimicrobial agent, a pH adjuster, or combinations thereof.
  • the pre-treatment composition and/or the inkjet ink further comprises a second additive selected from the group consisting of a non-ionic or an anionic surfactant, an antimicrobial agent, an anti-decel agent, and combinations thereof.
  • the liquid vehicle includes water and a co-solvent.
  • the liquid vehicle consists of water and the co-solvent.
  • the liquid vehicle consists of water and the co-solvent, the anti-decel agent, the surfactant, the antimicrobial agent, a pH adjuster, or a combination thereof.
  • the liquid vehicle consists of the anti-decel agent, the surfactant, the antimicrobial agent, a pH adjuster, and water.
  • the liquid vehicle may include co-solvent(s).
  • the co-solvent(s) may be present in an amount ranging from about 4 wt% to about 30 wt% (based on the total weight of the inkjet ink). In an example, the total amount of co-solvent(s) present in the inkjet ink is about 10 wt% (based on the total weight of the inkjet ink).
  • the liquid vehicle includes glycerol.
  • co-solvents include aliphatic alcohols, aromatic alcohols, diols, glycol ethers, polyglycol ethers, lactams, formamides, acetamides, glycols, and long chain alcohols.
  • co-solvents examples include primary aliphatic alcohols, secondary aliphatic alcohols, 1,2-alcohols, 1,3-alcohols, 1,5- alcohols, 1,6-hexanediol or other diols (e.g., 1,5-pentanediol, 2-methyl-l, 3 -propanediol, etc.), ethylene glycol alkyl ethers, propylene glycol alkyl ethers, higher homologs (C 6 -Ci 2 ) of polyethylene glycol alkyl ethers, triethylene glycol, tetraethylene glycol, tripropylene glycol methyl ether, N-alkyl caprolactams, unsubstituted caprolactams, 2-pyrrolidone, l-methyl-2- pyrrolidone, N-(2-hydroxyethyl)-2-pyrrolidone, both substituted and unsubstituted formamides, both substituted and unsubstitute
  • the co-solvent may also be a polyhydric alcohol or a polyhydric alcohol derivative.
  • polyhydric alcohols may include ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, tri ethylene glycol, 1,5-pentanediol, 1,2-hexanediol, 1,2,6-hexanetriol, glycerin, trimethylolpropane, and xylitol.
  • polyhydric alcohol derivatives may include an ethylene oxide adduct of diglycerin.
  • the co-solvent may also be a nitrogen- containing solvent.
  • nitrogen-containing solvents may include 2-pyrrolidone, l-(2- hydroxyethyl)-2-pyrrolidone, N-methyl-2-pyrrolidone, cyclohexylpyrrolidone, and triethanolamine.
  • the liquid vehicle may include anti-decel agent(s).
  • the anti-decel agent may function as a humectant. Decel refers to a decrease in drop velocity over time with continuous firing.
  • the anti-decel agent (s) is/are included to assist in preventing decel.
  • the anti-decel agent may improve the jettability of the inkjet ink.
  • the anti-decel agent(s) may be present in an amount ranging from about 0.2 wt% active to about 5 wt% active (based on the total weight of the inkjet ink). In an example, the anti-decel agent is present in the inkjet ink in an amount of about 1 wt% active, based on the total weight of the inkjet ink.
  • the liquid vehicle of the inkjet ink and of the pre-treatment composition may also include surfactant(s).
  • the surfactant may be present in an amount ranging from about 0.01 wt% active to about 5 wt% active (based on the total weight of the inkjet ink).
  • the surfactant is present in the inkjet ink in an amount ranging from about 0.05 wt% active to about 3 wt% active, based on the total weight of the inkjet ink.
  • the surfactant is present in the inkjet ink in an amount of about 0.3 wt% active, based on the total weight of the inkjet ink.
  • the surfactant may include anionic and/or non-ionic surfactants.
  • anionic surfactant may include alkylbenzene sulfonate, alkylphenyl sulfonate, alkylnaphthalene sulfonate, higher fatty acid salt, sulfate ester salt of higher fatty acid ester, sulfonate of higher fatty acid ester, sulfate ester salt and sulfonate of higher alcohol ether, higher alkyl sulfosuccinate, polyoxyethylene alkylether carboxylate, polyoxyethylene alkylether sulfate, alkyl phosphate, and polyoxyethylene alkyl ether phosphate.
  • anionic surfactant may include dodecylbenzenesulfonate, isopropyl-naphthalene-sulfonate, monobutylphenylphenol monosulfonate, monobutylbiphenyl sulfonate, monobutylbiphenyl sul fonate, and dibutylphenylphenol disulfonate.
  • non-ionic surfactant may include polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, glycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene alkylamine, polyoxyethylene fatty acid amide, alkylalkanolamide, polyethylene glycol polypropylene glycol block copolymer, acetylene glycol, and a polyoxyethylene adduct of acetylene glycol.
  • non-ionic surfactant may include polyoxyethylenenonyl phenylether, polyoxyethyleneoctyl phenylether, and polyoxyethylenedodecyl.
  • Further examples of the non ionic surfactant may include silicon surfactants such as a polysiloxane oxyethylene adduct; fluorine surfactants such as perfluoroalkylcarboxylate, perfluoroalkyl sulfonate, and oxyethyleneperfluoro alkylether; and biosurfactants such as spiculisporic acid, rhamnolipid, and lysolecithin.
  • the liquid vehicle may include a silicone-free alkoxylated alcohol surfactant such as, for example, Tego ® Wet 510 (Evonik Degussa) and/or a self-emulsifiable wetting agent based on acetylenic diol chemistry, such as, for example, Surfynol ® SE-F (Evonik Degussa).
  • a silicone-free alkoxylated alcohol surfactant such as, for example, Tego ® Wet 510 (Evonik Degussa)
  • a self-emulsifiable wetting agent based on acetylenic diol chemistry such as, for example, Surfynol ® SE-F (Evonik Degussa).
  • Suitable commercially available surfactants include Surfynol ® 465 (ethoxylatedacetylenic diol), Surfynol ® 440 (an ethoxylated low-foam wetting agent) Surfynol ® CT-211 (now Carbowet ® GA-211, non-ionic, alkylphenylethoxylate and solvent free), and Surfynol ® 104 (non-ionic wetting agent based on acetylenic diol chemistry), (all of which are from Evonik Degussa); Zonyl ® FSO (a.k.a.
  • Capstone ® which is a water-soluble, ethoxylated non-ionic fluorosurfactant from DuPont
  • Tergitol ® N-3 and Tergitol ® N-6 both of which are branched secondary alcohol ethoxylate, non-ionic surfactants
  • Tergitol ® 15-S-3, Tergitol ® 15-S-5, and Tergitol ® 15-S-7 each of which is a secondary alcohol ethoxylate, non-ionic surfactant
  • BYK ® 345, BYK ® 346, BYK ® 347, BYK ® 348, BYK ® 349 each of which is a silicone surfactant
  • the liquid vehicle may also include antimicrobial agent(s).
  • Antimicrobial agents are also known as biocides and/or fungicides.
  • the total amount of antimicrobial agent(s) in the inkjet ink ranges from about 0.01 wt% active to about 0.05 wt% active (based on the total weight of the inkjet ink).
  • the total amount of antimicrobial agent(s) in the inkjet ink is about 0.04 wt% active (based on the total weight of the inkjet ink).
  • the antimicrobial agent may be present in the pigment dispersion that is mixed with the liquid vehicle.
  • Suitable antimicrobial agents include the NUOSEPT ® (Ashland Inc.), UCARCIDETM or KORDEKTM or ROCIMATM (The Dow Chemical Company), PROXEL ® (Arch Chemicals) series, ACTICIDE ® B20 and ACTICIDE ® M20 and ACTICIDE ® MBL (blends of 2-methyl-4-isothiazolin-3-one (MIT), l,2-benzisothiazolin-3-one (BIT) and Bronopol) (Thor Chemicals), AXIDETM (Planet Chemical), NIPACIDETM (Clariant), blends of 5-chloro-2-methyl-4-isothiazolin-3-one (CIT or CMIT) and MIT under the tradename KATHONTM (The Dow Chemical Company), and combinations thereof.
  • NUOSEPT ® Ashland Inc.
  • UCARCIDETM or KORDEKTM or ROCIMATM The Dow Chemical Company
  • PROXEL ® Arch Chemicals
  • the liquid vehicle may also include a pH adjuster.
  • a pH adjuster may be included in the inkjet ink to achieve a desired pH (e.g., 8.5) and/or to counteract any slight pH drop that may occur over time.
  • the total amount of pH adjuster(s) in the inkjet ink ranges from greater than 0 wt% to about 0.1 wt% (based on the total weight of the inkjet ink). In another example, the total amount of pH adjuster(s) in the inkjet ink is about 0.03 wt% (based on the total weight of the inkjet ink).
  • suitable pH adjusters include metal hydroxide bases, such as potassium hydroxide (KOH), sodium hydroxide (NaOH), etc.
  • the metal hydroxide base may be added to the inkjet ink in an aqueous solution.
  • the metal hydroxide base may be added to the inkjet ink in an aqueous solution including 5 wt% of the metal hydroxide base (e.g., a 5 wt% potassium hydroxide aqueous solution).
  • Suitable pH ranges for examples of the inkjet ink can be from pH 7 to pH 11, from pH 7 to pH 10, from pH 7.2 to pH 10, from pH 7.5 to pH 10, from pH 8 to pH 10, 7 to pH 9, from pH 7.2 to pH 9, from pH 7.5 to pH 9, from pH 8 to pH 9, from 7 to pH 8.5, from pH 7.2 to pH 8.5, from pH 7.5 to pH 8.5, from pH 8 to pH 8.5, from 7 to pH 8, from pH 7.2 to pH 8, or from pH 7.5 to pH 8.
  • the fluid set 100 of the present disclosure comprises a pre-treatment composition 110; an inkjet ink 120 and can comprise, as an optional element, a fixer composition 130.
  • the fixer composition includes a fixing agent that is a cationic charged specie, and a fixer vehicle.
  • the composition may also include additional components, such as surfactants for example.
  • the fixing agent without being bound to any theory, it is believed that it can crush pigment from the ink composition and bind the ink pigment colorants on top surface of the substrate to improve printing image quality, especially black ink density and colored ink vibrance.
  • the fixing agent is a cationic charged specie that can be a metal inorganic salt, a metal organic salt, a cationic polymer, or a combination thereof.
  • the fixing agent is a cationic charged specie that can be either a cationic polymer with higher molecular weight or smaller molecular as metallic salt.
  • Cationic polymers may have cationic groups as part of the main chain, meaning that either cationic groups can exist on the backbone unit or cationic groups can exist as an appending group directly attached to an element of the backbone unit, i.e. the ionic group is part of the repeat unit of the polymer.
  • the cationic charged specie is a cationic polymer or a metallic salt or mixture of metallic salts.
  • the fixing agent can be any species of chemical compounds which carry multiple positive charge center.
  • the multiple positive charges can be found in a single multivalent metal, or for salts with multiple metals, the multiple positive charge centers can be from multiple monovalent and/or divalent metals.
  • the fixing agent can include metal inorganic salt, metal organic salt, cationic polymer, or a combination thereof.
  • the fixing agent is a cationic polyamine-based fixer.
  • the fixing agent is a cationic polymer including an alkylated quaternary polyamine cationic polymer or an ionene cationic polymer.
  • the fixer composition might also include a fixing agent, that is a cationic charged specie, and that is selected from the group consisting of a cationic polyamine-based polymer, an Inorganic calcium salt, a cationic phosphonium polymer or a cationic phosphonium salt- based fiver agent.
  • the fixer composition includes a cationic phosphonium salt-based fixer.
  • the cationic charged specie is a metallic salt or mixture of metallic salts.
  • the cationic charged specie is a metallic salt or mixture of metallic salts that are water-soluble or water-dispersible.
  • the metallic salts may include mono- or multi-valent metallic salts, preferably multi-valent metallic salts.
  • the metallic salt may include cations, such as Group I metals, Group II metals, Group III metals, or transition metals, such as sodium, calcium, copper, nickel, magnesium, zinc, barium, iron, aluminium and chromium ions.
  • An anion species can be chloride, iodide, bromide, nitrate, sulfate, sulfite, phosphate, chlorate, acetate ions, or various combinations.
  • the metallic salt can be selected from inorganic metallic salts, such as calcium chloride, calcium nitrite, calcium sulfate, magnesium bromide; magnesium chloride, magnesium chlorate; magnesium sulfate; magnesium nitrate; magnesium perchlorate; magnesium fluorosilicate, aluminium sulfate, aluminium chloride; aluminium chloride, aluminium nitrate, aluminium chloride hydroxide (A12C1(0H)5).
  • the metallic salt can be selected from organic acid metallic salts and its hydrates such as calcium acetate, calcium citrate, calcium acamprosate, calcium adipate, calcium benzoate, calcium formate, calcium isoascorbate, calcium malate, calcium propionate, calcium lactate; magnesium acetate, magnesium acetate tetrahydrate, magnesium aspartate tetrahydrate, trimagnesium dicitrate nonadydrate, trimagnesium dicitrate tetradecanehydrate, tricalcium dicitrate tetrahydrate, calcium actate tetrahydrate, magnesium stearate, magnesium alkylsalieylate, magnesium alkylphenolate, magnesium hydroxystearate, magnesium oleate, and aluminium lactate.
  • organic acid metallic salts and its hydrates such as calcium acetate, calcium citrate, calcium acamprosate, calcium adipate, calcium benzoate, calcium formate, calcium isoascorbate, calcium malate, calcium propionate
  • fixing agent can be a cationic polymer.
  • Said cationic polymer may have multiple charge centers.
  • Cationic polymer may have cationic groups as part of the main chain (polymer backbone) or as part of an appended side-chain (pendent group).
  • the cationic polymer can be a naturally occurring polymer such as cationic gelatin, cationic dextran, cationic chitosan, cationic cellulose, cationic cyclodextrin, etc.
  • the cationic polymer can also be a synthetically modified naturally occurring polymer such as a modified chitosan, e.g., carboxymethyl chitosan, N, N, N-trimethyl chitosan chloride, etc.
  • the cationic polymer can be a polymer having cationic groups as part of the main chain, such as an alkoxylated quaternary polyamine having the structure of Formula II, as follows:
  • R, R 1 and A can be the same group or different groups, such as linear or branched C 2 -C 12 alkylene, C 3 -C 12 hydroxyalkylene, C 4 -C 12 dihydroxyalkylene, or dialkylarylene;
  • X can be any suitable counter ion, such as halogen, chloride, bromide, iodide, etc., or other similarly charged anions;
  • m can be a numeral suitable to provide a polymer having a weight average molecular weight ranging from 100 Mw to 8000 Mw.
  • the nitrogen atoms along the backbone can be quaternized.
  • Formula II relates to the various commercial products with the trade name FloquatTM, which are cationic polymers available from SNF (UK) Ltd., United Kingdom.
  • an ionene polymer which is a polymer having ionic groups that are appended to the backbone unit as a side-chain, with an example including quaternized poly(4-vinyl pyridine), having the structure of Formula III, as follows:
  • X can be any suitable counter ion, such as halogen, chloride, bromide, iodide, etc., or other similarly charged anions; and m can be a numeral suitable to provide a polymer having a weight average molecular weight ranging from 100 Mw to 8000 Mw.
  • the cationic polymer can include polyamines and/or a salts thereof, polyacrylate diamines, quaternary ammonium salts, polyoxyethylenated amines, quaternized polyoxyethylenated amines, polydicyandiamides, polydiallyldimethyl ammonium chloride polymeric salts, or quaternized dimethylaminoethyl(meth)acrylate polymers.
  • the cationic polymer can include polyimines and/or salts thereof, such as linear polyethyleneimines, branched polyethyleneimines, or quatermized polyethylenimines.
  • the ionene polymer can include a substitute polyurea such as poly[bis(2- chloroethyl)ether-alt-l,3 bis[3-(dimethylamino)propyl]urea], or quaternized poly[bis(2 chloroethyl)ether-alt-l,3-bis [3-(dimethylamino)propyl].
  • the cationic polymer can be a vinyl polymer and/or a salt thereof, such as quaternized vinyl imidazol polymers, modified cationic vinyl alcohol polymers, or alkyl guanidine polymers.
  • the cationic polymer that can be included in the fixer composition can have a weight average molecular weight ranging from 3,000 Mw to 3,000,000 Mw. Any weight average molecular weight (Mw) throughout this disclosure may be expressed as Mw, and is in Daltons.
  • Mw weight average molecular weight
  • the cationic polymer included in the fixer composition can have a weight average molecular weight from 3,000 Mw to 200,000, or from 3,000 Mw to 100,000 Mw, or from 3,000 Mw to 50,000 Mw, for example.
  • This molecular weight may provide for the cationic polymer to be printed by thermal inkjet printheads with good print reliability in many instances.
  • higher molecular weights may be useable, such as from 200,000 Mw to 3,000,000 Mw, e.g., applied by piezoelectric printheads and/or analog methods.
  • the fixer fluid disclosed herein include a cationic polymer that is a cationic polyurethane including a phosphonium salt.
  • the cationic polyurethane may be present in the form of particles. These particles may have a D50 particle size ranging from about 20 nm to about 500 nm.
  • the “D50” particle size is defined as the particle size at which about half of the particles are larger than the D50 particle size and about half of the other particles are smaller than the D50 particle size.
  • the cationic polyurethane particles have a D50 particle size ranging from about 20 nm to about 200 nm, from about 40 nm to about 400 nm, from about 60 nm to about 300 nm, or from about 100 nm to about 500 nm.
  • particle size with respect to the cationic polyurethane particles can be calculated using volume of the particle size normalized to a spherical shape for diameter measurement. Particle size information can also be determined and/or verified using a scanning electron microscope (SEM)
  • the cationic polyurethane polymer structure includes a polyurethane backbone, pendant side chain groups along the polyurethane backbone, and end cap groups terminating the polyurethane backbone.
  • the pendant side chain groups and the end cap groups collectively include aliphatic phosphonium salts and polyalkylene oxides.
  • the aliphatic phosphonium salts may be pendant side chain groups and/or end cap groups, and the polyalkylene oxides may be pendant side chain groups and/or end cap groups.
  • Examples of the cationic polymer include poly(diallyldimethylammonium chloride); or poly(methylene-co-guanidine) anion with the anion is selected from the hydrochloride, bromide, nitrate, sulfate, or sulfonate; a polyamine; poly(dimethylamine-co-epichlorohydrin); a polyethylenimine; a polyamide epichlorohydrin resin; a polyamine epichlorohydrin resin; or a combination thereof.
  • polyamine epichlorohydrin resins may include Crepetrol ® 73, Kymene ® 736, Kymene ® 736NA, Poly cup ® 7360, and Polycup ® 7360A, each of which is available from Solenis LLC.
  • the fixing agent when present, is present in the pre-treatment composition in an amount representing between 1 % and 30 % of the total weight of the pre treatment composition. In some other examples, the fixing agent are present in the pre treatment composition in an amount representing between 2 % and 20 % of the total weight of the pre-treatment composition. In yet some other examples, the fixing agent are present in the pre-treatment composition in an amount representing between 5 % and 15 % of the total weight of the pre-treatment composition.
  • the fixer composition can further include a fixer vehicle to carry the cationic charged specie, for example.
  • a fixer vehicle may refer to the liquid in which the cationic charged specie is mixed to form the fixer composition.
  • the fixer vehicle can be an aqueous vehicle including water, and may include other liquid components, such as organic co-solvent, surfactant, chelating agent, a pH adjuster, etc.
  • the surfactant in the fixer composition may be an anionic, non-ionic, or cationic surfactant in any amount set forth herein based on a total weight of the fixer composition.
  • the surfactant may be present in an amount ranging from 0.01 wt% to 5 wt% (based on the total weight of the fixer composition).
  • the surfactant is present in the fixer composition in an amount ranging from 0.05 wt% to 3 wt%, based on the total weight of the fixer composition.
  • the surfactant is present in the ink composition in an amount of 0.3 wt%, based on the total weight of the fixer composition.
  • the co-solvent in the fixer composition 130 may be any example of the co-solvents set forth herein for the pre-treatment composition 110 previously, in any amount set forth herein for the pre-treatment composition (except that the amount(s) are based on the total weight of the fixer composition instead of the pre-treatment composition).
  • anionic surfactant may include alkylbenzene sulfonate, alkylphenyl sulfonate, alkylnaphthalene sulfonate, higher fatty acid salt, sulfate ester salt of higher fatty acid ester, sulfonate of higher fatty acid ester, sulfate ester salt and sulfonate of higher alcohol ether, higher alkyl sulfosuccinate, polyoxyethylene alkylether carboxylate, polyoxyethylene alkylether sulfate, alkyl phosphate, and polyoxyethylene alkyl ether phosphate.
  • anionic surfactant may include dodecylbenzenesulfonate, isopropylnaphthalenesulfonate, monobutylphenylphenol monosulfonate, monobutylbiphenyl sulfonate, monobutylbiphenyl sul fonate, and dibutylphenylphenol disulfonate.
  • cationic surfactant examples include quaternary ammonium salts, such as benzalkonium chloride, benzethonium chloride, methylbenzethonium chloride, cetalkonium chloride, cetylpyridinium chloride, cetrimonium, cetrimide, dofanium chloride, tetraethylammonium bromide, didecyldimethylammonium chloride, domiphen bromide, alkylbenzyldimethylammonium chlorides, distearyldimethylammonium chloride, diethyl ester dimethyl ammonium chloride, dipalmitoylethyl hydroxyethylmonium methosulfate, and ACCOSOFT ® 808 (methyl (1) tallow amidoethyl (2) tallow imidazolinium methyl sulfate available from Stepan Company).
  • quaternary ammonium salts such as benzalkonium chloride, benzethonium chloride
  • cationic surfactant examples include amine oxides, such as lauryldimethylamine oxide, myristamine oxide, cocamine oxide, stearamine oxide, and cetamine oxide.
  • non-ionic surfactant may include polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, glycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene alkylamine, polyoxyethylene fatty acid amide, alkylalkanolamide, polyethylene glycol polypropylene glycol block copolymer, acetylene glycol, and a polyoxyethylene adduct of acetylene glycol.
  • non-ionic surfactant may include polyoxyethylenenonyl phenylether, polyoxyethyleneoctyl phenylether, and polyoxyethylenedodecyl.
  • Further examples of the non ionic surfactant may include silicon surfactants such as a polysiloxane oxyethylene adduct; fluorine surfactants such as perfluoro-alkylcarboxylate, perfluoroalkyl sulfonate, and oxyethyleneperfluoro alkylether; and biosurfactants such as spiculisporic acid, rhamnolipid, and lysolecithin.
  • a chelating agent may be present in the fixer composition in an amount from 0.01 wt% to 0.5 wt% based on the total weight of the fixer composition. In an example, the chelating agent is present in an amount ranging from 0.05 wt% to 0.2 wt% based on the total weight of the fixer composition.
  • the chelating agent may be selected from methylglycinediacetic acid, trisodium salt; 4,5-dihydroxy-l,3-benzenedisulfonic acid disodium salt monohydrate, ethylenediaminetetraacetic acid (EDTA), hexamethylenediamine tetra(methylene phosphonic acid), potassium salt, or a combination thereof.
  • Methylglycinediacetic acid, trisodium salt (Na 3 MGDA) is commercially available as Trilon ® M from BASF Corp. 4, 5 -dihydroxy- 1,3- benzenedisulfonic acid disodium salt monohydrate is commercially available as TIRONTM monohydrate.
  • Hexamethylenediamine tetra(methylene phosphonic acid), potassium salt is commercially available as Dequest ® 2054 from Italmatch Chemicals.
  • An anti-kogation agent may also be included in a fixer composition that is to be thermal inkjet printed.
  • Kogation refers to the deposit of dried printing liquid on a heating element of a thermal inkjet printhead.
  • Anti-kogation agent(s) is/are included to assist in preventing the buildup of kogation.
  • the anti-kogation agent may improve the jettability of the fixer composition.
  • the anti-kogation agent(s) may be present in the pre treatment composition in a total amount ranging from about 0.1 wt% active to about 1.5 wt% active, based on the total weight of the fixer composition.
  • the anti-kogation agent(s) is/are present in an amount of about 0.5 wt% active, based on the total weight of the fixer composition.
  • suitable anti-kogation agents include oleth-3 -phosphate (commercially available as Crodafos ® 03 A or Crodafos ® N-3A) or dextran 500k.
  • anti-kogation agents include Crodafos ® HCE (phosphate-ester from Croda Int.), Crodafos ® N10 (oleth- 10-phosphate from Croda Int.), or Dispersogen ® LFH (polymeric dispersing agent with aromatic anchoring groups, acid form, anionic, from Clariant), etc. It is to be understood that any combination of the anti-kogation agents listed may be used.
  • a pH adjuster may also be included in the fixer composition 120, such as to achieve a target pH level, e.g., from 1 to 7, from 2 to 6 or from 3 to 4, and/or to counteract any slight pH increase that may occur over time or during formulation.
  • the total amount of pH adjuster(s) in the fixer composition if used, can be from 0.01 wt% to 0.5 wt%, based on the total weight of the fixer composition.
  • the total amount of pH adjuster(s) in the fixer composition can be from 0.02 wt% to 0.1 wt%, based on the total weight of the fixer composition.
  • An example of a pH adjuster that may be used in the fixer composition includes methane sulfonic acid.
  • the viscosity of the fixer composition 130 may vary depending upon the application method that is to be used to apply the fixer composition. As an example, when the fixer composition is to be applied with an analog applicator, the viscosity of the fixer composition may range from 1 centipoise (cp) to 300 cps (at 25°C and a shear rate of 3,000 Hz), from 10 cps to 300 cps, or from 20 cP to 300 cps.
  • cp centipoise
  • 300 cps at 25°C and a shear rate of 3,000 Hz
  • the viscosity of the fixer composition when the fixer composition is to be applied with an thermal inkjet applicator/printhead, the viscosity of the fixer composition may range from 1 cps to 15 cps (at 25°C and a shear rate of 3,000 Hz), and when the fixer composition is to be applied with an piezoelectric inkjet applicator/printhead, the viscosity of the fixer composition may range from 1 cp to 30 cps (at 25°C and a shear rate of 3,000 Hz).
  • the fluid set 100 may also be part of a textile printing kit 200.
  • the textile printing kit includes a fabric substrate 140, as well as the fluid set components shown and described in Figure 1 or 2. More specifically, the textile printing kit 200 includes a fabric substrate 140 and the fluid set 100 with a pre-treatment composition 110 and an ink composition 120. Said textile printing kit 200 can be used in an example of printing method.
  • the textile printing kit includes a fabric substrate 140, as well as the fluid set components shown and described in Figure 2, wherein the fluid set 100 comprises a pre-treatment composition 110, an ink composition 120, and a fixer composition 130
  • the fabric substrate can include any textile, fabric material, fabric clothing, or other fabric structure.
  • fabric can be used to mean a textile, a cloth, a fabric material, fabric clothing, or another fabric product.
  • fabric structure is intended to mean a structure having warp and weft that is woven, non-woven, knitted, tufted, crocheted, knotted, and/or pressured, for example.
  • warp and weft refer to weaving terms that have their ordinary means in the textile arts, as used herein, e.g., warp refers to lengthwise or longitudinal yams on a loom, while weft refers to crosswise or transverse yams on a loom.
  • the fabric substrate is a textile fabric that can be selected from the group consisting of polyester fabric, polyester blend fabric, cotton fabric, cotton blend fabric, nylon fabric, nylon blend fabric, polyester fabrics, polyester blend fabrics, silk fabric, silk blend fabric, wool fabric, wool blend fabric, and a combination thereof.
  • textile fabric is selected from the group consisting of cotton fabrics and cotton blend fabrics.
  • fabric substrate useful in the present disclosure can include fabric substrates that have fibers that can be natural and/or synthetic. It is notable that the term “fabric substrate” does not include materials commonly known as any kind of paper (even though paper can include multiple types of natural and synthetic fibers or mixture of both types of fibers). Furthermore, fabric substrates include both textiles in its filament form, in the form of fabric material, or even in the form of fabric that has been crafted into finished article (clothing, blankets, tablecloths, napkins, bedding material, curtains, carpet, shoes, etc.). In some examples, the fabric liner has a woven, knitted, non-woven, or tufted fabric structure.
  • the fabric substrate can be a woven fabric where warp yarns and weft yarns are mutually positioned at an angle of about 90°.
  • This woven fabric can include, but is not limited to, fabric with a plain weave structure, fabric with a twill weave structure where the twill weave produces diagonal lines on a face of the fabric, or a satin weave.
  • the fabric liner can be a knitted fabric with a loop structure including one or both of warp-knit fabric and weft-knit fabric.
  • the weft-knit fabric refers to loops of one row of fabric are formed from the same yarn.
  • the warp-knit fabric refers to every loop in the fabric structure that is formed from a separate yarn mainly introduced in a longitudinal fabric direction.
  • the fabric liner can also be a non- woven product, for example a flexible fabric that includes a plurality of fibers or filaments that are bonded together and/or interlocked together by a chemical treatment process (e.g., a solvent treatment), a mechanical treatment process (e.g., embossing), a thermal treatment process, or a combination of two or more of these processes.
  • a chemical treatment process e.g., a solvent treatment
  • a mechanical treatment process e.g., embossing
  • a thermal treatment process e.g., a combination of two or more of these processes.
  • the fabric substrate can include one or both of natural fibers and synthetic fibers.
  • Natural fibers that can be used include, but are not limited to, wool, cotton, silk, linen, jute, flax or hemp.
  • Additional fibers that can be used include, but are not limited to, rayon fibers, or those of thermoplastic aliphatic polymeric fibers derived from renewable resources, including, but not limited to, corn starch, tapioca products, or sugarcanes. These additional fibers can be referred to as “natural” fibers.
  • the fibers used in the fabric liner includes a combination of two or more from the above-listed natural fibers, a combination of any of the above-listed natural fibers with another natural fiber or with synthetic fiber, a mixture of two or more from the above-listed natural fibers, or a mixture of any thereof with another natural fiber or with synthetic fiber.
  • Synthetic fibers that can be used in the fabric liner can include polymeric fibers such as, but not limited to, polyvinyl chloride (PVC) fibers, polyvinyl chloride (PVC)-free fibers made of polyester, polyamide, polyimide, polyacrylic, polypropylene, polyethylene, polyurethane, polystyrene, polyaramid, e.g., Kevlar ® , polytetrafluoroethylene, e.g., Teflon ® (both trademarks of E. I. du Pont de Nemours and Company), fiberglass, polytrimethylene, polycarbonate, polyester terephthalate, or polybutylene terephthalate.
  • PVC polyvinyl chloride
  • PVC polyvinyl chloride
  • the fiber used in the fabric substrate can include a combination of two or more fiber materials, a combination of a synthetic fiber with another synthetic fiber or natural fiber, a mixture of two or more synthetic fibers, or a mixture of synthetic fibers with another synthetic or natural fiber.
  • the synthetic fiber can include a modified fiber.
  • modified fiber can refer to one or both of the synthetic fiber and the fabric liner as a whole having undergone a chemical or physical process such as, but not limited to, one or more of a copolymerization with monomers of other polymers, a chemical grafting reaction to contact a chemical functional group with one or both the synthetic fiber and a surface of the fabric, a plasma treatment, a solvent treatment, for example acid etching, and a biological treatment, for example an enzyme treatment or antimicrobial treatment to prevent biological degradation.
  • P VC-free means no polyvinyl chloride (PVC) polymer or vinyl chloride monomer units in the substrate.
  • the fabric base substrate is a synthetic polyester fiber.
  • the fabric substrate can include both natural fibers and synthetic fibers.
  • the amount of synthetic fibers represents from about 20 wt% to about 90 wt% of the total amount of fibers.
  • the amount of natural fibers represents from about 10 wt% to about 80 wt% of the total amount of fibers.
  • the fabric liner includes natural fibers and synthetic fibers in a woven structure, the amount of natural fibers is about 10 wt% of a total fiber amount and the amount of synthetic fibers is about 90 wt% of the total fiber amount.
  • the fabric liner can also include additives such as, but not limited to, one or more of colorant (e.g., pigments, dyes, tints), antistatic agents, brightening agents, nucleating agents, antioxidants, UV stabilizers, fillers, lubricants, and combinations thereof.
  • colorant e.g., pigments, dyes, tints
  • antistatic agents e.g., antistatic agents, brightening agents, nucleating agents, antioxidants, UV stabilizers, fillers, lubricants, and combinations thereof.
  • the fabric substrate can have a basis weight from 50 gsm to 400 gsm.
  • a flow diagram of a method of textile printing 300 includes applying 310 a pre-treatment composition on a fabric substrate to form a pre-treatment layer, the pre-treatment composition including a polyaziridine polymeric network and an aqueous liquid vehicle.
  • the method 300 further includes applying 320 an inkjet ink composition on the pre-treatment layer to form an ink layer, wherein the ink composition includes a pigment, a polyurethane-based binder and an aqueous liquid vehicle.
  • the method includes thermally curing 330 the ink layer on the fabric substrate to form an image.
  • the fabric substrate with the pre treatment layer is dried at a temperature that is no greater than about 50 °C to about 60°C, before the application of the ink.
  • a flow diagram of a method of textile printing 300A includes applying 310A a pre-treatment composition on a fabric substrate to form a pre-treatment layer, the pre-treatment composition including a polyaziridine polymeric network and an aqueous liquid vehicle.
  • the method 300 A further includes applying, 340A, a fixer composition on the pre-treatment layer to form a fixer layer, wherein the fixer composition including a cationic charged specie and a fixer vehicle.
  • the method 300 A further includes applying, 320A, an inkjet ink composition on the fixer layer to form an ink layer, wherein the ink composition includes a pigment, a polyurethane-based binder and an aqueous liquid vehicle.
  • the ink composition can be digitally printed on the ink layer.
  • the method includes thermally curing 330A the ink layer on the fabric substrate.
  • the fabric substrate with the pre-treatment layer is dried at a temperature that is no greater than about 50 °C to about 60°C, before the application of the fixer layer.
  • the method can utilize the fluid sets and/or textile printing kits shown and described in Figures 1 and 2, and the components thereof described in greater detail by way of example hereinafter.
  • the inkjet ink is printed to achieve greater than 250 grams per square meter (gsm) of the ink. In other examples, the inkjet ink is printed to achieve about 300 gsm of the ink.
  • the inkjet ink and, when preset, the fixer composition may be inkjet-printed using any suitable inkjet applicator, such as a thermal inkjet printhead, a piezoelectric printhead, a continuous inkjet printhead, etc.
  • the inkjet ink and the fixer composition are applied with thermal inkjet printheads.
  • the inkjet ink may be inkjet printed in a single pass or in multiple passes. As an example of single pass printing, the cartridge(s) of an inkjet printer deposit(s) the desired amount of the inkjet ink during the same pass of the cartridge(s) across the fabric substrate.
  • the cartridge(s) of an inkjet printer deposit the desired amount of the inkjet ink over several passes of the cartridge(s) across the fabric substrate.
  • the inkjet ink may be inkjet printed in 6 printing passes.
  • the pre-treatment composition can be applied by any analogue coating method. Such as dipping coating, padding coating, rolling coating and screen printing.
  • the pre-treatment composition is formulated to be applied on the textile substrate by an analog method, such as analog padder for example.
  • the pre-treatment composition is applied on one side of the to a fabric substrate in an amount representing about 0.5 gsm to 15.0 gsm (gram per square/meter);in some other examples in an amount representing about 1.0 to about 10.0 gsm; and in some other examples in an amount representing about 2.0 to about 7.0 gsm.
  • the viscosity of the pre-treatment composition can be from about 1 to about 500 cps at a temperature of about 20°C In some other examples, the viscosity of the pre-treatment composition ranges from about 1 cps to about 100 cps. In yet some other examples, the viscosity of the pre-treatment composition ranges from about 1 cP to about 80 cps.
  • Other non limiting examples of coating methods include paddler size press, slot die, blade coating, and Meyer rod coating, dip coating, etc. In one example, any of a variety of spray coating methods may be used with the present embodiment.
  • the fabric substrate can be passed under an adjustable spray nozzle. The adjustable spray nozzle may be configured to alter the rate at which the pre-treatment composition is sprayed onto the fabric substrate.
  • wt % active refers to the loading of an active component of a dispersion or other formulation that is present in the inkjet ink or the fixer composition.
  • the pigment may be present in a water- based formulation (e.g., a stock solution or dispersion) before being incorporated into the inkjet ink.
  • the wt% actives of the pigment accounts for the loading (as a weight percent) of the pigment that is present in the inkjet ink, and does not account for the weight of the other components (e.g., water, etc.) that are present in the formulation with the pigment.
  • wt% without the term actives, refers to either i) the loading (in the inkjet ink or the fixer composition) of a 100% active component that does not include other non-active components therein, or the loading (in the inkjet ink or the pre-treatment composition) of a material or component that is used “as is” and thus the wt% accounts for both active and non active components.
  • ranges provided herein include the stated range and any value or sub-range within the stated range, as if the value(s) or sub-range(s) within the stated range were explicitly recited.
  • a range from about 0.1 wt% active to about 0.6 wt% active should be interpreted to include not only the explicitly recited limits of from about 0.1 wt% active to about 0.6 wt% active, but also to include individual values, such as about 0.15 wt% active, about 0.25 wt% active, about 0.40 wt% active, about 0.577 wt% active, etc., and sub-ranges, such as from about 0.133 wt% active to about 0.365 wt% active, from about 0.23 wt% active to about 0.47 wt% active, from about 0.35 wt% active to about 0.595 wt% active, etc.
  • when “about” is utilized to describe a value this is meant to encompass minor variations (
  • Fluid sets according to the present disclosure are prepared, each fluid set including a pre-treatment composition and an ink composition or a pre-treatment composition, a fixer composition and an ink composition.
  • Examples of the pre-treatment composition are prepared by mixing the ingredients listed in the Table 1.
  • the pre-treatment composition PT1 is a composition according to the present disclosure.
  • the pre-treatment composition PT2 is a comparative example.
  • fixer compositions are prepared by mixing the ingredients listed in the Table 2.
  • Fixer composition FI is a cationic polyamine-based fixer.
  • Fixer composition F2 is an Inorganic calcium salt-based fixer.
  • Fixer composition F3 is Cationic phosphonium polymer- based fixer.
  • Gildan ® white cotton fabric 780 T-shirts (having a basis weight of 180 gsm) (from Gildan Inc) are used as the textile fabric substrates in this example. More specifically, textile fabric samples (T1-T7) are individually pre-treated with pre-treatment compositions PT1 or PT2 or with nothing (control). The pre-treatment compositions are applied at different coat weight (in gsm) with padding method and dried at 50°C using a boxing oven for 10 min. Details are illustrated in Table 4 below.
  • Example print samples were generated using fixer compositions F1, F2 or F3 of Table 2, applied at a total loading of 5 gsm and then dried at 50°C in a box oven for 10 min.
  • the fabric substrate samples (T1-T7) are then printed on Innovator durability plot with the ink composition (Ink 1) of Table 3 (3 dpp ink) with A3410.
  • the textile fabrics imaged with the ink are then cured with a heat press at 150 °C for 3 minutes at 44 psi of pressure.
  • the printed textile fabric samples were then tested for their “crock-fastness” performances.
  • the crock-fastness test is to determine the amount of color inks transferred from textile materials to other abradant surfaces by rubbing using a special equipment such as Taber ® Crock-meter.
  • the test method follows industrial standard: American Association of Textile Chemists and Colorists (AATCC) Test method TM-08.
  • AATCC American Association of Textile Chemists and Colorists
  • TM-08 The crock-fastness test reflects the ability of the ink colorant particles against rubbing of mechanical force, or strength of interaction between ink binder and media surface via chemical or mechanical bonding.
  • the crock-fastness performances are evaluated visually with a rank from 1 to 5 (with 5 showing best performance and with 1 showing poorest performances). The results are presented in the table 6 below.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)

Abstract

L'invention concerne un ensemble de fluides pour imprimer des images sur des substrats textiles. L'ensemble de fluides comprend une composition de prétraitement comprenant un réseau polymère de polyaziridine ainsi qu'un véhicule liquide aqueux et une encre pour jet d'encre comprenant un pigment, un liant à base de polyuréthane et un véhicule liquide aqueux. L'invention concerne également un kit d'impression textile et un procédé d'impression pour générer une impression à l'aide dudit ensemble de fluides.
PCT/US2021/017401 2021-02-10 2021-02-10 Ensemble de fluides pour impression textile WO2022173425A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040116598A1 (en) * 2002-09-26 2004-06-17 Jong-Shing Guo Removable, water-whitening resistant pressure sensitive adhesives
US20180230647A1 (en) * 2015-08-03 2018-08-16 Agfa Nv Methods for manufacturing printed textiles
US20190367760A1 (en) * 2017-01-24 2019-12-05 Agfa Nv Fluid set comprising a pre-treatment liquid and an inkjet ink
WO2020131791A1 (fr) * 2018-12-18 2020-06-25 Hewlett-Packard Development Company, L.P. Composition de revêtement et support imprimable
WO2021010947A1 (fr) * 2019-07-12 2021-01-21 Hewlett-Packard Development Company, L.P. Ensemble de fluides

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040116598A1 (en) * 2002-09-26 2004-06-17 Jong-Shing Guo Removable, water-whitening resistant pressure sensitive adhesives
US20180230647A1 (en) * 2015-08-03 2018-08-16 Agfa Nv Methods for manufacturing printed textiles
US20190367760A1 (en) * 2017-01-24 2019-12-05 Agfa Nv Fluid set comprising a pre-treatment liquid and an inkjet ink
WO2020131791A1 (fr) * 2018-12-18 2020-06-25 Hewlett-Packard Development Company, L.P. Composition de revêtement et support imprimable
WO2021010947A1 (fr) * 2019-07-12 2021-01-21 Hewlett-Packard Development Company, L.P. Ensemble de fluides

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