WO2005113692A1 - Encre d’impression à jet d’encre - Google Patents

Encre d’impression à jet d’encre Download PDF

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Publication number
WO2005113692A1
WO2005113692A1 PCT/GB2005/001894 GB2005001894W WO2005113692A1 WO 2005113692 A1 WO2005113692 A1 WO 2005113692A1 GB 2005001894 W GB2005001894 W GB 2005001894W WO 2005113692 A1 WO2005113692 A1 WO 2005113692A1
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WO
WIPO (PCT)
Prior art keywords
ink
solvent
substrate
binder
printing
Prior art date
Application number
PCT/GB2005/001894
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English (en)
Inventor
Ged Hastie
Original Assignee
Nanojetlink Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB0411126.6A external-priority patent/GB0411126D0/en
Application filed by Nanojetlink Ltd filed Critical Nanojetlink Ltd
Priority to EP05747338A priority Critical patent/EP1756238A1/fr
Priority to US11/569,347 priority patent/US20080171149A1/en
Publication of WO2005113692A1 publication Critical patent/WO2005113692A1/fr

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Classifications

    • 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
    • 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
    • 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
    • D06P5/003—Transfer 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
    • 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

Definitions

  • This invention is in the field of digital printing, and is more specifically directed to an inkjet printing ink and to a method of printing an image onto a substrate by digital means using such ink, and subsequently activating the ink to permanently fix the printed image on the substrate.
  • the silk screen process is a stencil process well known in the art for printing images directly onto textiles as well as indirectly via transfer paper.
  • the two main types of screen printing inks are pigmented emulsions and plastisol inks.
  • the emulsion inks are typically based on aqueous dispersions of a binder and cross-linking agent.
  • the emulsion inks are used for direct printing onto all types of fabric. After printing, the prints are fixed onto the textile by heat.
  • the plastisol inks are typically vinyl resin dispersed in plasticizer. They may be applied directly onto the fabric or used as a transfer. When used as a transfer, the ink is screen printed onto a release paper, cured to a dry film, and stored until transferred to fabric by a heat transfer process.
  • US-A-5556935 discloses a screen printing paste containing polyisocyanate mixtures comprising hydrophilic polyisocyanates, hydrophilic polyisocyanates containing carbidiimide groups, and/or polyepoxide compounds as cross-linking agents.
  • these mixtures are insufficient under practical conditions; in particular, the finished printing pastes are not stable on storage.
  • a continuous loss of isocyanate groups takes place through reaction of free isocyanate groups with water, which ultimately leads to products that are inactive with respect to crosslinking.
  • US-A-4849262 discloses a screen printing paste and aqueous dyeing liquor containing particle dispersions of polyisocyanate cross-linking agent in a deactivated (partially blocked) form.
  • the deactivation of the particle surfaces is achieved by the dispersion of polyisocyanates in the presence of media that are reactive with isocyanate. Only the isocyanate groups present on the surface of the particles react with the deactivating agent. The rest of the polyisocyanate molecules in the interior of the particle remain unreacted.
  • the deactivation compounds form a sort of polymer shell on the surface of the polyisocyanate particles, which is removed with heat above 60°C. Apparently this shell imparts a prolonged pot life to the printing pastes, compared to prior art.
  • US-A-5607482 discloses a screen printing paste containing a hydrophilic polyisocyanate prepolymer as a cross- linking agent.
  • the isocyanate groups of the prepolymer are chemically blocked to prevent reaction.
  • the blocking agent is removed with heat.
  • Such print pastes show prolonged pot life due to both the complete blocking of reactive groups and the reduced number of reactive groups in the larger molecular weight prepolymer.
  • Such a paste composition is limited to silk-screen and/or offset printing due to the physical properties of the paste. These include high solid percentage, high viscosity, and relatively large component particle sizes.
  • Silk-screen is the predominant printing method for textiles, it does have certain disadvantages in today's digital computer age.
  • Silk- screen is an analog printing process. As such it is not capable of matching the quality of digital graphics, especially photographic images. Nor can the process quickly or easily enable changes to be made to the print design.
  • digital computer technology allows a virtually instantaneous printing of images, each of which may be different from the other. Images are typically printed by a computer driven printer that will print colour inks from multiple ink reservoirs. Printing may be done directly onto the final substrate, such as a textile fabric, or onto an intermediate substrate, such as paper, followed by a transfer process.
  • US-A-4694302 discloses an ink jet printing system which contains a reactive species present in the ink itself (one component system) or in a separate reservoir (two component system) .
  • the reaction of the reactive species with the substrate (one component system) or with the ink (two component system) forms a polymer which binds the dye onto the surface of the substrate.
  • US-A-5380769 and US- A-5645888 describe inkjet ink compositions that contain at least two reactive components, a base ink which contains a crosslinkable constituent, and a curing component which is a crosslinking agent.
  • the base ink and curing component are applied to a receiving substrate separately.
  • the base ink is preferably applied first.
  • a durable, cross-linked ink is produced.
  • both the crosslinkable constituent and a crosslinking agent may be incorporated in the ink carrier while the catalyst serves as a curing component .
  • US-A-5645888 applies the base ink component to an intermediate support surface to be subsequently transferred to a desired receiving surface.
  • the curing component may be applied to the intermediate support surface directly or in combination with an ink release agent.
  • US-A-5853861 discloses a digital printing process, specifically ink jet printing, for direct printing onto a textile, rather than paper.
  • the ink contains an aqueous carrier, a pigment and a polymer having acid, base, epoxy or hydroxyl functional moieties.
  • the textile is pre- treated with a solution of either an organometallic crosslinking agent or an isocyanate crosslinking agent.
  • the crosslinking agent reacts with the textile and the polymer in the ink to fix the image.
  • the area of the textile outside the printed image also reacts with the crosslinking agent, possibly creating discoloration and a harsh hand.
  • the crosslinking agents are not blocked from reaction. Therefore the life of the crosslinking agent in solution and on the fabric is severely reduced. Continuous loss of reactive groups ultimately leads to a textile which is inactive with respect to crosslinking.
  • Solvent-based inks including both aqueous and non- aqueous inks, are well known.
  • Solvent-based inks can be printed using piezoelectrically actuated printheads . Images are formed by the ejection of ink droplets onto a receiving surface and subsequent removal, such as by evaporation or diffusion, of one to all of the solvents.
  • Phase change inks are solid at ambient temperatures and liquid at the elevated operating temperatures of an inkjet printing device. Ink jet droplets in the liquid phase are ejected from the printing device at an elevated operating temperature and rapidly solidify when they contact with the surface of a substrate to form the predetermined pattern.
  • Thermal or bubble-jet devices use a heating element inside of the printing device to create instantaneous vapor bubbles that propel the ink to form small droplets from the print head and form the digitally oriented image.
  • Continuous inkjet devices use printing ink with charging characteristics and with a continuous ink droplet flow through the printing transducer. By controlling the polarity of an electrode prior to the emit nozzle, the ejection of ink droplets from the nozzle is controlled.
  • US-B-6341856 discloses a reactive ink comprising a colouring agent, a binder and at least one reactive species capable of being crosslinked by a second species to bond/crosslink the colouring agent onto a final substrate, such as a textile.
  • the first reactive species is a nucleophilic compound capable of being crosslinked through active hydrogen containing groups, such as amine, amido, carboxylic acid, hydroxyl, thiol, urethane, or urea groups or functional groups that can be converted into active hydrogen containing functional groups, such as a carboxylic acid derivatives (excluding anhydride groups) .
  • active hydrogen containing groups such as amine, amido, carboxylic acid, hydroxyl, thiol, urethane, or urea groups or functional groups that can be converted into active hydrogen containing functional groups, such as a carboxylic acid derivatives (excluding anhydride groups) .
  • the second reactive species is an electrophilic crosslinking agent, which is able to crosslink the above nucleophilic compounds by abstraction of their active hydrogen.
  • the preferred crosslinking agents are isocyanates, epoxides, and other electrophilic crosslinking agents.
  • ingredients and compounds from one or both reactive chemical groups form a stable emulsion or emulsion-like system.
  • a separate reservoir of either or both reactive components may be utilized.
  • the nucleophilic and/or electrophilic functional groups are protected either by chemical blocking with blocking agents or by physical barrier such as encapsulating agents.
  • the second reactive species may be present with the first in the ink itself, or it may be printed onto the same area as the first reactive species from a separate ink reservoir.
  • the protecting agents may be removed after printing by the application of energy or heat.
  • the image is printed either directly onto the final substrate, or it may be printed onto an intermediate substrate, such as paper, and subsequently transferred. Fixation of the ink onto the substrate is accomplished by reacting the agents in the ink, removing blocking agent (s) by the application of energy, such as heat and/or pressure.
  • fixation is independent of the printing process, images can be stored for long periods of time prior to activation. Incorporation of all necessary reactive compounds in the printed image versus applying one or both reactive species to the final substrate allows for a wide selection of preferred substrates, including but not limited to textiles. It also provides good fixation onto the substrate surface, since the colorants are more thoroughly surrounded by the reactive compounds during the bonding/crosslinking process .
  • the images so produced have good colour fastness to laundering and abrasion.
  • the ink system in US-B-6341856 is an emulsion or emulsion-like system, so that the ink system is relatively stable during storage and printing according to the processes described therein.
  • emulsions are always sensitive to conditions, and the emulsion can easily be disturbed by characteristics such as particle size and particle size distribution, pH value, charge density, viscosity, surface energy temperature etc. It would be much preferred if at least the binding system was a solution.
  • the pigments are necessarily a dispersion, but a dispersion in a solution is much more stable than a dispersion in an emulsion.
  • an inkjet ink that is a solution, preferably aqueous, other than solid pigment particles dispersed in said solution, containing a binder activatable after printing on, or subsequent transfer to, a substrate to bind the pigment particles to the substrate .
  • an inkjet ink comprising the following constituents, by weight: Solvent 20 - 80% Binder 5 - 40% Colourant 0.5 - 10% Humectant 0 - 40% Co-solvent 0 - 40% Dispersant 0 - 20% Additives 0 - 5%
  • said binder comprises a self-crosslinkable polymer soluble in said solvent having carbomoyl groups of the formula -NH-CO-X n" , where X is an anionic water solubilising group and n is 1, 2 or 3, and said colourant is solid pigment particles dispersed in a solution of the remaining constituents.
  • X is S0 3 .
  • X may be COO " .
  • said components are in the ranges: Solvent 50 - 70% Binder 10 - 20% Colourant 1 - 4% Humectant 5 - 20% Co-solvent 0 - 5% Dispersant 0 - 5% Additives 0.2 - 3%
  • water is the preferred solvent, and the solution is aqueous, but the use of other solvents, with or without water, is not ruled out.
  • said polymer is a polyether polyurethane .
  • An example of such polymer is Synthappret® BAP, sold by Bayer AG, Leverkusen, Germany as an anti-felt finishing of wool and wool blends.
  • an image is inkjet printed with the ink of the present invention to a substrate and fixed with heat to produce a durable image which has no effect on the perceived handle of the textile substrate.
  • the carbomoyl sulphonate group is also referred to as a bisulphite adduct and is described in US-A-3898197 as a blocked polyisocyanate composition.
  • the chemistry of the unblocking is described in a paper: "Shrink resisting wool with Synthappret BAP: The effect of drying conditions" Cook, JR and Fleischfresser, BE, 1985, Textile Research Institute, Textile Research Journal, pp 607-614-.
  • the carbomoyl group is anionic it is soluble in water and the entire polymer to which it is attached can be rendered water soluble.
  • a functionality preferably of between two and four, for example, three, carbomoyl groups are provided on each polymer molecule .
  • ink components such as colorants, humectants, co-solvents, dispersants, surfactants, etc. may contain chemically reactive sites to allow permanent bonding of every component of the image.
  • the final substrate may also contain chemically reactive sites, allowing grafting of the image with the final substrate.
  • Such reactive functional groups may be provided in carbomoyl form, so that additional solubility in water is assured, as well as preventing premature binding to the binder.
  • additives may be required such as biocides, corrosion inhibitors, pigment dispersion additives, wetting agents, de-foamers, anti-freeze, and pH modifiers .
  • an ink in accordance with the invention preferably has said additives including: Oxidising Agent 0.01 - 2% pH modifier 0.05 - 2%.
  • An oxidising agent minimises any fungal growth within the system. More importantly, however, such oxidising agent may also act to oxidise excess species present, such as bisulphite ions and sulphur dioxide.
  • Suitable oxidising agents include chlorates, chlorites, hypochlorites, dichromates, persulphates, peroxides, nitrates and dichromates.
  • the oxidising agent is hydrogen peroxide.
  • pH modifiers examples include amines, bicarbonates such as sodium bicarbonate, percarbonates such as sodium percarbonate, metal carbonates such as potassium carbonate, sodium hydroxide, ammonia, hydroxyl amines such as diethanolamine and triethanolamine .
  • the pH modifier is sodium carbonate .
  • Ink-jet inks are known of three basic types: aqueous, non-aqueous, and hot-melt.
  • the most common inks for drop-on-demand ink-jet printers for office quality output are aqueous-based inks, whereas non-aqueous inks are prevalent for continuous ink-jet printers, especially for industrial labelling.
  • Phase change or hot-melt inks are typically used in drop-on-demand ink-jet printers and are based on waxes/resins.
  • the ink formulation of the present invention is restricted to aqueous systems.. Indeed, the great advantage of the present invention is its application in aqueous systems.
  • the binder may have an average molecular weight from 500 to 50,000 and preferably, an average molecular weight in the range of 1,000 to 3,000.
  • the root polymer of the active binder may be a polyether, polyurethane, polyether polyurethane, polyester, polyester polyurethane or polyisocyanate prepolymers which are known to organic chemists.
  • the ink may include catalysts for the cross-linking reaction, however, the self cross-linkable polymer used does not require the addition of a catalyst and will readily cross-link when exposed to elevated temperatures.
  • catalysts which may be used include tertiary amines, such as triethylamine, triethylenediamine, hexahydro-N, N ' -dimethyl aniline, tribenzylamine, N- methyl-piperidine, N,N' -dimethylpiperazine; alkali or alkaline earth metal hydroxides, chlorides and carbonates; heavy metal ions, such as iron (III), manganese (III) , vanadium(V) or metal salts such as lead oleate, lead-2-ethylhexanoate, zinc (II ) octanoate, lead and cobalt napththenate, zinc (II) -ethylhexanoate, dibutyltin dilaurate, dibuty
  • the colorant may be organic and/or inorganic dyes or pigments. Indeed, almost any material which will lend colour, and which can be transported by the liquid carrier through the ink jet printer nozzles, may be used.
  • Preferred colorants are pigment solids dispersed in the carrier to form a stable dispersion or colloid.
  • the average particle size of the colorant in the dispersed ink system is normally from a few nanometres to several microns and preferably from 0.005 to less than one micron in diameter.
  • Self dispersible pigments such as those described in US 5554739 and US 5922118 may be used as the colorant and provide extremely stable dispersions.
  • colorants may be bound by physical entrapment within the image due to bonding/cross-linking of the reactive image compounds.
  • colourfastness is superior when the colourants are also bound by chemical bonds/cross-links, either with components of the ink, or with the final substrate.
  • Colorants may be used that contain active functional groups capable of participating in the chemical crosslinking process.
  • Preferred colorants are pigments which are highly dispersed within the ink formulation. Such pigments are known to provide superior fastness properties.
  • the ink may also contain other binding components.
  • the ink binder is the "glue" that holds the ink onto the substrate, and in that respect the present invention is no exception as it contains an active self cross-linkable polymer which acts to trap mechanically the colorant to the desired substrate.
  • Other binding components if they were felt necessary or desirable, could take the form of a single resin or a complex combination of resins, plasticizers, and other additives. Binders impact the viscosity of the ink system and promote droplet formation. Binders also serve to adhere the colorant to the surface of the substrate, control the gloss of the colorant, control the definition of the print of the colorant, and determine the alkali solubility of the ink, among other purposes.
  • Such other binding components may be film forming, amorphous, low odour, colourless, pale or transparent.
  • the components are preferably soluble or at least form a stable emulsion or colloid in the carrier system where surfactants, emulsifiers, humectants and/or co-solvents may be used in the ink.
  • Either structured or random polymers may be selected for use as the other ink binding components.
  • Structured polymers have a block, branched, or graft structure.
  • Particularly preferred binders are those that can participate in the bonding/crosslinking of the reactive ink. They may also have carbomoyl groups or may be protected from premature reaction with blocking agents.
  • binding components examples include phenolics; acrylics such as poly (meth) acrylic acid and salts, polyacrylamide, polystyrene-acrylates; vinyl resins such as polyvinyl alcohol, polyvinyl acetate, and polyvinyl butyral; polyalkyleneoxides such as polyethylene oxide and polyethylene glycol; polyamides; polyamines such as polyvinylpyridine, polyvinylpyrrolidone, polyvinylamine, and polyethyleneimine; cellulose derivatives such as nitrocellulose, ethyl cellulose, ethyl hydroxyethyl cellulose, cellulose acetate butyrate, cellulose acetate propionate, and sodium carboxymethyl cellulose.
  • acrylics such as poly (meth) acrylic acid and salts, polyacrylamide, polystyrene-acrylates
  • vinyl resins such as polyvinyl alcohol, polyvinyl acetate, and polyvinyl butyral
  • polyalkyleneoxides such as polyethylene oxide and
  • aqueous ink additives such as water miscible humectants, co-solvents, wetting agents, emulsifiers, solubilizers, charging agents, and dispersants may be used to assist in creating a stable emulsion or colloid of any hydrophobic components in the ink.
  • Co-solvents may serve several functions. They act as humectants, i.e. they help minimize the evaporation of water and prevent crystallization of the dye/pigment inside the ink jet nozzle. Co-solvents also help control viscosity and the surface tension of the inks.
  • Preferred co-solvents include but are not limited to N- methyl pyrrolidone/pyrrolidinone and glycols, pa-rfcicui-arl-y ethyiene giycoi- 7 diethylene giycoi—- propylene glycol, etc., as well as the ethers of such glycols, particularly mono-alkyl ethers.
  • straight-chain ethers are more effective viscosity- reducing agents than branched chain isomers and their efficiency increases with increasing the number of carbon atoms in the alkoxy groups.
  • co-solvents can improve the solubility of certain colorants thus producing more stable inks.
  • co-solvents enable the quick formation of vaporized bubbles.
  • co-solvents include l-methoxy-2- propanol, iso-propanol, and iso-butyl vinyl ether.
  • Wetting agents may include such compounds as fatty acid alkanolamides, oxyethylene adducts from fatty alcohols or fatty amines.
  • Other surface tension modifiers and/or interfacial modifiers include but not limited to di-, triethanolamine, amine oxide, sulfonated alkyl/fatty ester, aromatic/alkyl phosphate ester.
  • aqueous-based dye/pigment dispersants include such compounds as, fatty alcohol polyglycol ethers, and aromatic sulfonic acids, for instance naphthalene sulfonic acids.
  • Some dispersants are polymeric acids or bases which act as electrolytes in aqueous solution in the presence of the proper counterions .
  • Such polyelectrolytes provide electrostatic as well as steric stabilization of dispersed particles in the emulsion. Furthermore, they supply the ink with charging characteristics in continuous inkjet ink construction.
  • polyacids include polysaccharides such as polyalginic acid and sodium carboxymethyl cellulose; polyacrylates such as polyacrylic acid, styrene-acrylate copolymers; polysulfonates such as polyyinylsulfonic acid, styrene-sulfonate copolymers; polyphosphates such as polymetaphosphoric acid; polydibasic acids (or hydrolyzed anhydrides) , such as styrene-maleic acid copolymers; polytribasic acids such as acrylic acid- maleic acid copolymers.
  • polysaccharides such as polyalginic acid and sodium carboxymethyl cellulose
  • polyacrylates such as polyacrylic acid, styrene-acrylate copolymers
  • polysulfonates such as polyyinylsulfonic acid, styrene-sulfonate copolymers
  • polyphosphates such as polymetaphosphoric acid
  • polybases examples include polyamines such as polyvinylamine, polyethyleneimine, poly (4-vinylpyridine) ; polyquaternary ammonium salts such as poly (4-vinyl-N-dodecyl pyridinium) .
  • Amphoteric polyelectrolytes may be obtained, by the copolymerization of suitable acidic and basic monomers, for instance, methacrylic acid and vinyl pyridine.
  • Aqueous ink may also contain pH modifiers; anti-foaming chemicals such as silicone oil emulsions; fusion control agents; corrosion inhibitors; fungicides; antifreeze agents, such as ethylene glycol, propylene glycol, glycerol or sorbitol; antioxidants; and UV-light stabilizers .
  • the viscosity of the ink needs to be closely controlled in order to allow the ink to print through inkjet printing device.
  • the viscosity value of the ink should be in the range of 1-30 cps, and preferably within a range of 3-10 cps. Viscous ink outside the range may result in printing difficulties, poor droplet size/shape forming and control, and/or damaged print orifices.
  • Surfactants can be very important in the processes of wetting, emulsification, dispersion, solubilization, ink drop forming and surface energy control or modification.
  • CMC critical micelle concentration
  • micelle particles are small enough in size to create a free flow liquid applicable in inkjet printing without clogging the printing mechanism. They also protect the ingredients, especially the heat-sensitive materials inside the micelle particles having a direct contact with each other, and/or having a direct contact -with printing mechanisms such as a heating element in thermal or bubble-jet inkjet printing.
  • the non-soluble, non- miscible ingredients used in the application therefore can be stabilized with useable concentration.
  • At least one surfactant/dispersant/dispersing mechanism should be used.
  • Multiple surfactants/ dispersants can also be used in combination to further enhance the protection, stability, flow characteristics, and printing performance, provided such material does not have any negative impact on the reactive ingredients during the storage and image generating processes.
  • CMC hydrophilic- lipophilic balance
  • HLB hydrophilic- lipophilic balance
  • surfactants and emulsifiers/dispersants include alkylaryl polyether alcohol nonionic surfactants, such as Triton X series (Octylphenoxy-polyethoxyethanol) ; alkylamine ethoxylates nonionic surfactants such as Triton FW series, Triton CF-10, and Tergitol (Union Carbide Chemicals) ; polysorbate products such as Tween (ICI Chemicals and Polymers); polyalkylene and polyalkylene modified surfactants, such as Silwet surfactants (polydimethylsioxane copolymers) and CoatOSil surfactants from OSI Specialties; alcohol alkoxylates nonionic surfactants, such as Renex, BRIJ, and Ukanil; Sorbitan ester products such as Span and Arlacel; alkoxylated esters/PEG products, such as Tween, Atlas, Myrj and Cirrasol surfactants from ICI Chemicals and Poly
  • surfactants are also used for surface energy or surface tension control.
  • the surface tension of the final ink should range from 20 dyne/cm to 55 dyne/cm and preferably from 35 dyne/cm to 45 dyne/cm.
  • the final transfer substrate may include plastics, metals, wood, glass, ceramics, paper, or textile materials.
  • textile materials including such materials as cotton, secondary cellulose acetate, rayon, wool, silk, and polyamides such as nylon 6, nylon 66 or nylon 12.
  • the substrates must be able to withstand the heat transfer temperature without deforming, melting or degrading.
  • the final substrate may either contain compounds that have active groups have a surface coating containing such groups. Chemical grafting is achieved through crosslinking between the ink layer components and final substrate material, resulting in superior stability and durability.
  • Thermally expandable ink may be produced, if desired, in which the ink and/or the medium comprises an expanding agent. Simultaneous expanding and cross-linking gives a three-dimensional image which is permanently bound to the substrate. The height of the image is dependent on the concentration of expanding agent, the temperature and the pressure applied during heat transfer printing.
  • Preferable expanding agents include those which decompose upon heating to release gaseous products which cause the ink to expand.
  • Such expanding agents known as chemical blowing agents include organic expanding agents such as azo compounds which include azobisisobutyronitrile, azodicarbonamide, and diazoaminobenzene, nitroso compounds such as N,N' -dinitrosopentamethyl-enetetramine, N, N ' -dinitroso-N, ' -dimethylterephthalamide, sulfonyl hydrazides such as benzenesulfonyl hydrazide, p- toluenesulfonyl hydrazide, p-toluenesulfonyl azide, hydrazolcarbonamide, acetone-p-sulfonyl hydrazone; and inorganic expanding agents, such as sodium bicarbonate, ammonium carbonate and ammonium bicarbonate.
  • Thermally expandable ink may alternately be produced by the use of volatile hydrocarbons encapsulated in a microsphere that ruptures upon the application of heat. The gaseous products released expand the ink.
  • thermally expandable microcapsules are composed of a hydrocarbon, which is volatile at low temperatures, positioned within a wall of thermoplastic resin.
  • hydrocarbons suitable for practicing the present invention are methyl chloride, methyl bromide, trichloroethane, dichioroethane, n-butane, n-heptane, n- propane, n-hexane, n-pentane, isobutane, isophetane, neopentane, petroleum ether, and aliphatic hydrocarbon containing fluorine such as Freon, or a mixture thereof.
  • Example Formulation Composition 2 Function Source % by weight
  • This ink had a high viscosity and was at the limit of satisfactory inkjet printing due to the high level of binder included.
  • the ink was stable. Printing tests were successful. Fatness tests to printed textiles showed high levels of image stability.
  • 5,554,739 and 5,922,118 may not require a high speed milling stage.
  • other colorants may require the application of a high shear mixing process in order to ensure a stable dispersion or colloid.
  • Inks are introduced into inkjet cartridges.
  • the inkjet printer can be thermal or piezo, desktop or wide format.
  • An image is printed directly to an untreated textile fabric.
  • a wide array of textile fabrics may be used e.g. cotton, polyester (blends thereof), silk, wool etc.
  • the ink is not textile specific.
  • the ink also prints to treated textiles, however the ink has the advantage of printing to cheaper untreated fabrics.
  • the ink is fixed to the textile substrate by means of heat.
  • the heating methods can take the form of dry heat (air flow), heat press, or steam.
  • the temperature can vary from between 100-200°C.

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

Abstract

L’encre contient un colorant, un polymère hydrosoluble capable d'autoréticulation après l'ajout de températures élevées, d’eau et d’autres adjuvants miscibles à l’eau. Le polymère peut être un adduct bisulfite d’un polyuréthane poly-isocyanate. Le polymère autoréticulable hydrosoluble lie le colorant à un substrat donné après une exposition à des températures élevées. Une image est imprimée par jet d’encre sur un substrat et fixée avec de la chaleur afin de générer une image durable sans aucun effet sur le toucher du substrat textile.
PCT/GB2005/001894 2004-05-19 2005-05-19 Encre d’impression à jet d’encre WO2005113692A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05747338A EP1756238A1 (fr) 2004-05-19 2005-05-19 Encre d'impression à jet d'encre
US11/569,347 US20080171149A1 (en) 2004-05-19 2005-05-19 Inkjet Printing Ink

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB0411126.6A GB0411126D0 (en) 2004-05-19 2004-05-19 Inkjet printing ink
GB0411126.6 2004-05-19
GB0425150A GB2414737A (en) 2004-05-19 2004-11-15 Inkjet printing ink
GB0425150.0 2004-11-15

Publications (1)

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WO2005113692A1 true WO2005113692A1 (fr) 2005-12-01

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3075794A1 (fr) * 2015-03-31 2016-10-05 Dover Europe Sàrl Composition d'encre pigmentaire, pour l'impression par jet continu devie binaire, a gouttes non chargees, de substrats en textile, procede de marquage, et substrat en textile ainsi marque
WO2017125354A1 (fr) 2016-01-18 2017-07-27 Lamberti Spa Liant pour encres aqueuses pour l'impression par jet d'encre
EP3450621A1 (fr) * 2017-08-28 2019-03-06 Aeoon Technologies GmbH Procédé et dispositif destinés à produire une texture tridimensionnelle
EP3543398A1 (fr) * 2018-03-22 2019-09-25 Palo Alto Research Center Incorporated Prétraitement textile pour impression numérique
TWI677611B (zh) * 2018-10-17 2019-11-21 財團法人紡織產業綜合研究所 數位噴印墨水
WO2019240798A1 (fr) 2018-06-14 2019-12-19 Hewlett-Packard Development Company, L.P. Encres pour jet d'encre pour impression textile
WO2020046309A1 (fr) * 2018-08-30 2020-03-05 Hewlett-Packard Development Company, L.P. Impression à recirculation interne
TWI695919B (zh) * 2018-10-17 2020-06-11 財團法人紡織產業綜合研究所 數位噴印墨水
WO2020131115A1 (fr) * 2018-12-21 2020-06-25 Hewlett-Packard Development Company, L.P. Encres pour jet d'encre destinée à une impression textile

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898197A (en) * 1972-02-18 1975-08-05 Commw Scient Ind Res Org Blocked polyisocyanate composition for the treatment of keratinous materials
EP1403343A1 (fr) * 2002-09-27 2004-03-31 Eastman Kodak Company Combination d'encre aqueuse et de recepteur

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898197A (en) * 1972-02-18 1975-08-05 Commw Scient Ind Res Org Blocked polyisocyanate composition for the treatment of keratinous materials
EP1403343A1 (fr) * 2002-09-27 2004-03-31 Eastman Kodak Company Combination d'encre aqueuse et de recepteur

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3075794A1 (fr) * 2015-03-31 2016-10-05 Dover Europe Sàrl Composition d'encre pigmentaire, pour l'impression par jet continu devie binaire, a gouttes non chargees, de substrats en textile, procede de marquage, et substrat en textile ainsi marque
FR3034426A1 (fr) * 2015-03-31 2016-10-07 Dover Europe Sarl Composition d'encre pigmentaire, pour l'impression par jet continu devie binaire, a gouttes non chargees, de substrats en textile, procede de marquage, et substrat en textile ainsi marque
WO2017125354A1 (fr) 2016-01-18 2017-07-27 Lamberti Spa Liant pour encres aqueuses pour l'impression par jet d'encre
CN111315928A (zh) * 2017-08-28 2020-06-19 安吉洛·谢斯特 用于产生三维组织的方法和装置
EP3450621A1 (fr) * 2017-08-28 2019-03-06 Aeoon Technologies GmbH Procédé et dispositif destinés à produire une texture tridimensionnelle
US11535981B2 (en) 2017-08-28 2022-12-27 Angelo Schiestl Method and device for producing a three-dimensional texture
CN111315928B (zh) * 2017-08-28 2022-11-08 安吉洛·谢斯特 用于产生限定的三维组织的方法和用于织物的三维组织
WO2019042815A1 (fr) * 2017-08-28 2019-03-07 Angelo Schiestl Procédé et dispositif de génération d'une texture tridimensionnelle
EP3543398A1 (fr) * 2018-03-22 2019-09-25 Palo Alto Research Center Incorporated Prétraitement textile pour impression numérique
WO2019240798A1 (fr) 2018-06-14 2019-12-19 Hewlett-Packard Development Company, L.P. Encres pour jet d'encre pour impression textile
WO2020046309A1 (fr) * 2018-08-30 2020-03-05 Hewlett-Packard Development Company, L.P. Impression à recirculation interne
US10640667B1 (en) 2018-10-17 2020-05-05 Taiwan Textile Research Institute Digital printing ink
TWI695919B (zh) * 2018-10-17 2020-06-11 財團法人紡織產業綜合研究所 數位噴印墨水
CN111057412A (zh) * 2018-10-17 2020-04-24 财团法人纺织产业综合研究所 数字喷印墨水
TWI677611B (zh) * 2018-10-17 2019-11-21 財團法人紡織產業綜合研究所 數位噴印墨水
WO2020131115A1 (fr) * 2018-12-21 2020-06-25 Hewlett-Packard Development Company, L.P. Encres pour jet d'encre destinée à une impression textile
US11787962B2 (en) 2018-12-21 2023-10-17 Hewlett-Packard Development Company, L.P. Inkjet ink for textile printing

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