WO2021154207A1 - Compositions pour jet d'encre - Google Patents

Compositions pour jet d'encre Download PDF

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Publication number
WO2021154207A1
WO2021154207A1 PCT/US2020/015304 US2020015304W WO2021154207A1 WO 2021154207 A1 WO2021154207 A1 WO 2021154207A1 US 2020015304 W US2020015304 W US 2020015304W WO 2021154207 A1 WO2021154207 A1 WO 2021154207A1
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WO
WIPO (PCT)
Prior art keywords
inkjet
inkjet composition
composition
examples
wax
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Application number
PCT/US2020/015304
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English (en)
Inventor
Guillermo MARTINEZ ARIZA
Beverly CHOU
Benjamin Abelovski
Original Assignee
Hewlett-Packard Development Company, L.P.
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.)
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Application filed by Hewlett-Packard Development Company, L.P. filed Critical Hewlett-Packard Development Company, L.P.
Priority to PCT/US2020/015304 priority Critical patent/WO2021154207A1/fr
Publication of WO2021154207A1 publication Critical patent/WO2021154207A1/fr

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    • 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
    • C09D11/12—Printing inks based on waxes or bitumen
    • 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
    • C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes

Definitions

  • Inkjet printing is a printing technique for printing images, characters, symbols, and/or other information on a substrate.
  • Inkjet printers can form ink droplets using heat and/or mechanical vibration.
  • a thermal inkjet printer can include a resistor that creates heat to vaporize fluid in a nozzle to create a bubble. As the bubble expands, some of the ink can be pushed out of the nozzle and onto a substrate.
  • Inkjet printing can be used to form an object
  • inkjet printing can be used to form a portion of an immunoassay on a substrate.
  • Immunoassays can be used in various life sciences applications.
  • a lateral flow assay (LFA) is an example of an immunoassay.
  • Immunoassays such as a LfA can be designed with particular physical structures to provide specific flow parameters depending upon an intended application of the immunoassay. Immunoassays with consistent physical structures and/or uniform flow parameters may be desirable to ensure the immunoassays functions as intended.
  • bio-compatible refers to a material that does not alter or otherwise negatively affect biomolecules, such as proteins or antibodies.
  • acids or other non-biocompatible materials can alter or damage a biomolecule.
  • an add can denature a protein.
  • environmentally-friendly refers to a fluid that is fine of harsh organic solvents and does not indude extra components (such as binders) that may not be biodegradable.
  • a harsh organic solvent refers to solvents that indude volatile organic compounds (VOCs).
  • Some printing methods may rely on a heated and liquified material, such a wax that is printed while heated and liquified.
  • a heated and liquified material such as a wax that is printed while heated and liquified.
  • Such approaches therefore can inherently be subject to reproducibility errors and inconsistendes due to use of the heated and liquefied material
  • Some other printing methods approaches employ adds, colorants, binders, harsh organic solvents, and/or other non-biocompatible/non-environmentally friendly components.
  • the disclosure is directed to inkjet compositions, as detailed herein.
  • an inkjet composition can include an aqueous solvent present in an amount of from about 1.0 wt% to about 99.0 weight percent (wt%) based on a total weight of the inkjet composition, and a wax present in an amount from about from about 0.1 to about 10.0 wt% based on the total weight of the composition.
  • the inkjet compositions herein can be bio-compatible and/or environmentally-friendly inkjet compositions.
  • the inkjet compositions are both bio-compatible and environmentally-friendly inkjet composition, as described herein, and yet are suitable for inkjet printing and use with immunoassays.
  • the inkjet compositions herein can be employed to in an inkjet printer to form a portion of an immunoassay with uniform flow parameters that are suitable for use in life sciences applications.
  • an inkjet composition can include an aqueous solvent present in an amount of from about 1.0 wt% to about 99.0 wt% based on a total weight of the inkjet composition, and a wax present in an amount from about from about 0.1 to about 10.0 wt% based on the total weight of the composition.
  • an inkjet composition can consist essentially of an aqueous solvent present in an amount of from about 1.0 wt% to about 99.0 wt% based on a total weight of the inkjet composition; and a wax present in an amount from about 0.1 to about 10.0 wt% based on the total weight of the composition.
  • the inkjet composition that consists essentially of the aqueous solvent and the wax can further include a surfactant, co-solvent, and/or an additive such as those described herein.
  • an inkjet composition can include an aqueous solvent present in an amount of from about 1.0 to about 80.0 wt% based on a total weight of the inkjet composition, a co-solvent present in an amount of from about 1.0 to about 20.0 wt% based on the total weight of the inkjet composition, a wax present in an amount from about from about 1.0 to about 20.0 wt% based on the total weight of the inkjet composition, and a surfactant that is optionally present in an amount from about 0 to 10.0 wt% based on the total weight of the inkjet composition.
  • an inkjet composition can include an aqueous solvent present in an amount of from about 1.0 to about 80.0 wt % based on a total weight of the inkjet composition, a co-solvent present in an amount of from about 1.0 to about 20.0 wt% based on the total weight of the inkjet composition, a wax present in an amount from about from about 1.0 to about 20.0 wt% based on the total weight of the inkjet composition, and a surfactant present in an amount from about 0 to 10.0 wt% based on the total weight of the inkjet composition.
  • an inkjet composition can consist essentially of a aqueous solvent present in an amount of from about 1.0 to about 80.0 wt% based on a total weight of the inkjet composition, a co-solvent present in an amount of from about 1.0 to about 20.0 wt% based on the total weight of the inkjet composition, a wax present in an amount from about 1.0 to about 20.0 wt% based on the total weight of the inkjet composition; and a surfactant present in an amount from about 0.1 to 10.0 wt% based on the total weight of the inkjet composition.
  • the inkjet composition that consists essentially of the aqueous solvent, cosolvent, wax, and surfactant, as detailed above, can further include an additive such as those described herein.
  • an inkjet composition can include an aqueous solvent present in an amount of from about 1.0 wt% to about 99.0 wt% based on a total weight of the inkjet composition, and a wax present in an amount from about from about 0.1 to about 10.0 wt% based on the total weight of the composition.
  • an inkjet composition can consist essentially of an aqueous solvent present in an amount of from about 1.0 wt% to about 99.0 wt% based on a total weight of the inkjet composition, and a wax present in an amount from about from about 0.1 to about 10.0 wt% based on the total weight of the composition.
  • the inkjet compositions can include an aqueous solvent
  • aqueous solvents include as water, deionized water, distilled water, or otherwise purified (filtered) water.
  • the aqueous solvent can be selected from a group consisting of water, deionized water and distilled water.
  • the aqueous solvent can consist of water.
  • the aqueous solvent can consist of de-ionized water.
  • the aqueous solvent can consist of distilled water.
  • the aqueous solvent can be present in an amount of from about 1.0 wt% to about 99.0 wt% based on a total weight of the inkjet composition. In some examples, the aqueous solvent in amounts to make up the balance of the inkjet composition. In some examples, the aqueous solvent can be present in the inkjet compositions in amounts greater than about 50.0 wt% based on the total weight of the inkjet composition. In some examples, the aqueous solvent can be present in the inkjet compositions in amounts from about 50.0 wt% to about 99.0 wt% based on the total weight of the inkjet composition.
  • the inkjet composition can include from about 60.0 wt% to about 97.4 wt% aqueous solvent. In further examples, the inkjet composition can include from about 70.0 wt% to about 90.4 wt% aqueous solvent. In some examples, the inkjet composition can include from about 70.0 wt% to about 87.6 wt% aqueous solvent. In some examples, the inkjet composition can include from about 97.4 wt% aqueous solvent. In some examples, the inkjet composition can include from about 90.4 wt% aqueous solvent [0014] Co-Solvent
  • the inkjet compositions can include a co-solvent
  • the co-solvent can be present in an inkjet composition in an amount of from about 1.0 wt% to about 20.0 wt% based on the total weight of the inkjet composition.
  • the co-solvent can be present in the inkjet composition in an amount of from about 3.0 wt% to about 12.0, from about 5.0 wt% to about 10.0 wt%, or from about 5.0 wt% to about 7.0 wt% based on the total weight of the inkjet composition.
  • the inkjet composition can include from about 7.0 wt% co-solvent In some examples, the inkjet composition can include about 0.0 wt% co-solvent [0017]
  • suitable co-solvents include aliphatic alcohols, aromatic alcohols, diols, triols, glycol ethers, poly(glycol) ethers, lactams, formamides, acetamides, long chain alcohols, ethylene glycol, propylene glycol, diethylene glycols, triethylene glycols, glycerine, dipropylene glycols, glycol butyl ethers, polyethylene glycols, polypropylene glycols, amides, ethers, carboxylic acids, esters, organosulfides, organosulfoxides, sulfones, alcohol derivatives, carbitol, butyl carbitol, cellosolve, ether derivatives, amino alcohols, and ketones.
  • co-solvents can include primary aliphatic alcohols of 30 carbons or less, primary aromatic alcohols of 30 carbons or less, secondary aliphatic alcohols of 30 carbons or less, secondary aromatic alcohols of 30 carbons or less, 1,2-diols of 30 carbons or less, 1,3-diols of 30 carbons or less, 1,5-diols of 30 carbons or less, ethylene glycol alkyl ethers, propylene glycol alkyl ethers, poly(ethylene glycol) alkyl ethers, higher homologs of poly(ethylene glycol) alkyl ethers, poly(propylene glycol) alkyl ethers, higher homologs of polypropylene glycol) alkyl ethers, lactams, substituted formamides, unsubstituted formamides, substituted acetamides, and unsubstituted acetamides.
  • hydantoin glycol such as, e.g., l,3-bis-(2-hydroxyethyl)-5,5-dimethylhydantoin), 1 -(2-hy droxyethy l)-2-pyrrolidinone, l-(2- hydroxyethyl)-2-imidazolidinone, tetratethylene glycol, 1,2,6-hexanetriol, glycerol, glycerol propoxylate, 1,5-pentanediol, LIPONIC® ethoxy lated glycerol 1 (LEG-1), LIPONIC® ethoxylated glycerol 7 (LEG-7), 2-methyl-2,4-pentanediol, 2-methyl-l ,3-propanediol, 2-ethyl- 2-hydroxymethyl-l, 3 -propanediol, diethylene glycol, 3-meth
  • the co-solvent can refer to a non-aqueous solvent such as glycerol or dimethylsulfoxide (DMSO).
  • a non-aqueous solvent such as glycerol or dimethylsulfoxide (DMSO).
  • the co-solvent can be selected from a group consisting of glycerol and dimethylsulfoxide (DMSO).
  • DMSO dimethylsulfoxide
  • the co-solvent can consist of glycerol.
  • the co-solvent can consist of DMSO.
  • co-solvents can be added to reduce the rate of evaporation of water in the inkjet, to minimize clogging, or contribute to other improved properties related to viscosity, pH, surface tension, optical density, gamut, durability, decap, and print quality, for example.
  • an inkjet composition can include a wax.
  • the wax can selected from a group consisting of a paraffin wax, a polyethylene wax, a fluorothermoplastic, and combinations thereof.
  • the wax can be a wax emulsion. Wax emulsions are commercially available from a number of vendors, for example Keim- Additec, Lubrizol, Michelman, and BYK Chemie.
  • wax emulsions include: Lubrizol: LIQUILUBETM 411, LIQUILUBETM 405, LIQUILUBETM 488, LIQUILUBETM 443, LIQUILUBETM 454; Michelman: ME80825, ME48040, ME98040M1, ME61335, ME90842, ME91240, ML 160; Keim-Additec: ULTRALUBE® E-521/20, ULTRALUBE® E-7093, ULTRALUBE® 7095/1, ULTRALUBE® E-8046, ULTRALUBE® E-502V, ULTRALUBE® E-842N: Byk: AQUACER® 2650, AQUACER® 507, AQUACER® 533, AQUACER® 515, AQUACER® 537, AQUASLIPTM 671, AQUASLIPTM 942.
  • a wax can be present in the inkjet compositions in an amount in a range of from about 0.1 wt% to about 10.0 wt% or from based on the total weight of the inkjet composition.
  • the inkjet composition can include wax in an amount ranging from about 0.1 wt% to about 5.0 wt%, 0.1 to about 3.0 wt%, about 0.1 wt% to about 2.0 wt%, or about 0.1 wt% to about 1.0 wt%, based on the total weight of the inkjet composition.
  • the inkjet composition can include wax present at about 2.5 wt% based on the total weight of the inkjet composition.
  • the wax can be formed of particles with a median particle diameter in a range of from about 0.01 microns to 2.0 microns. In some examples, the wax can be formed of particles with a median particle diameter in a range of from about 0.09 microns to 1.0 microns. In some wax can by formed of particles with a median particle diameter in a range of from about 0.09 microns to 0.30 microns. In some wax can by formed of particles with a median particle diameter in a range of from about 0.09 microns to 0.20 microns.
  • the wax can have a melting temperature in a range from 100 to 350 degrees Celsius (°C). In some examples, the wax has a melting temperature in a range from 100 to 180 °C. That is, the wax herein may have a relatively high melting temperature in contrast to approaches that rely on materials (e.g., wax) with lower melting points that can be readily heated and liquified in advance of application (e.g., printing) of the materials. In some examples, the wax can have a melting temperature in a range from about 105 °C to about 306 °C. In some examples the wax can have a melting temperature of about 306 °C, about 110 °C, or about 105 °C,
  • an inkjet composition can include a surfactant.
  • the surfactants in the inkjet compositions can include non-ionic, cationic, and/or anionic surfactants.
  • the surfactant can be present in amounts ranging from about 0.1 wt% to about 10.0 wt% based on the total weight of the inkjet composition. In some examples, the surfactant can be present in an amount ranging from about 0.1 wt% to about 5.0 wt% based on the total weight of the inkjet composition. In some examples, the surfactant can be present at about 0.1 wt% based on the total weight of the inkjet composition.
  • the inkjet compositions can include ethoxylated alcohols as a surfactant such as those from the Tergitol® series (e.g., Tergitol® 15S30, or Tergitol® 15S9), manufactured by The Dow Chemical Company; surfactants from the Surfynol® series (e.g., Surfynol® 104, Surfynol® 440 and Surfynol® 465), and DynolTM series (e.g., DynolTM 360, DynolTM 604, and DynolTM 607) manufactured by Air Products and Chemicals, Inc.
  • ethoxylated alcohols as a surfactant such as those from the Tergitol® series (e.g., Tergitol® 15S30, or Tergitol® 15S9), manufactured by The Dow Chemical Company
  • surfactants from the Surfynol® series e.g., Surfynol® 104, Surfynol® 440 and Surfyn
  • the inkjet composition can include a polysorbate surfactant.
  • polysorbate surfactants include Polysorbate 20 (or polyoxyethylene 20 sorbitan monolaurate), Polysorbate 40 (or polyoxyethylene 20 sorbitan monopalmitate), Polysorbate 60 (or polyoxyethylene 20 sorbitan monostearate), Polysorbate 80 (or polyoxyethylene 20 sorbitan monooleate), or the like.
  • polysorbates can likewise be used, including Polysorbate 85, or Tween® 85, which is polyethylene glycol sorbitan trioleate; or Polysorbate 81, Tween® 81, which is a polyoxyethylene (5) sorbitan monooleate, or Tween® 20 which is a polyoxyethylenesorbitan monolaurate. Polyoxyethylene sorbitan dioleate can also be used.
  • the surfactant can be a polyoxyethylene glycol ethers.
  • surfactants examples include Brij® S, Brij® O, Brij® C, and Brij®
  • Synperonic surfactants can also be used. Specific examples include Brij® S10, Brij® S5, Brij®, SI 5, Brij® S20, Brij® S2/93, Brij® S7, Brij® 98/020, Brij® O10, Brij® 35, Brij® 02, Brij®, 03, Brij® 05, Brij® C2, Brij® C7, Brij® CIO, Brij®, C20, Brij® L4/30, Brij® L9, Brij® LI 5, Synperonic® 91-2.5, Synperonic® 91-2.5, Synperonic® 91-10, or mixtures thereof.
  • the surfactant can be TRITIONTM XI 00, which is a polyethylene glycol tert-octylphenyl ether surfactant manufactured by Air Products and Chemicals, Inc.
  • the surfactant can be bio-compatible surfactant such as Brij® 35, Tween® 20 and/or Triton® X-100, among other bio-compatible surfactants.
  • Acid-free In various examples, the inkjet compositions herein are acid-free.
  • acids include hydrochloric acid, sulphuric acid, sulphurous acid, phosphoric acid, citric acid, oxalic acid, acetic acid, formic acid, sulphamic acid, tartaric acid, phytic acid, boric acid, succinic acid, suberic acid, and/or benzoic acid, among other types of acids.
  • an acid can have a PH of less than about 7.0.
  • the inkjet compositions herein are colorant-free.
  • a colorant can include inorganic pigments, organic pigments, dyes, and combinations thereof.
  • the colorant can be any color.
  • a colorant can be selected from a group consisting of pigments, organic pigments, dyes, and combinations thereof.
  • the inkjet compositions herein are binder-free.
  • binders include polymer-based binders and polyurethane-based binders that comprise a polyurethane polymer. That is, in some examples the binder-free composition is free of polymer-based binder and polyurethane based binders.
  • a polymer-based binder refers to binder that includes a polymer formed of two or more of the same or different polymer units. The polymer can be homopolymers, copolymers, terpolymers, etc.
  • a polyurethane polymer can refer to a reaction product of an isocyanate having one or greater numbers of isocyanate ( — NCO) functionalities per molecule with, one or greater isocyanate-reactive groups, such as a polyol, having one or greater hydroxy groups or an amine.
  • the inkjet compositions herein can be bio-compatible and environmentally-friendly due to being acid, colorant, binder, and/or harsh organic solvent-free.
  • the inkjet compositions are acid, colorant, binder, and harsh organic solvent-free.
  • an absence of an acid, a colorant, a binder, and/or a harsh organic solvent in an inkjet composition can refer to the inkjet compositions including from about 0.0 wt% to about 5.0 wt% independently of each of an acid, a colorant, a binder, and/or a harsh organic solvent
  • an inkjet composition being acid-free, colorant-free, binder-free, and/or harsh organic solvent-free can refer to the inkjet compositions including from about 0.0 wt% to about 5.0 wt% independently of each of an acid, a colorant, a binder, and/or a harsh organic solvent.
  • an inkjet compositions can include from about 0.0 wt% to about 5.0 wt%, from about 0.0 wt% to about 3.0 wt%, from about 0.0 wt% to about 1.0 wt%, from about 0.0 wt% to about 0.1 wt%, or 0.0 wt% independently of each of an acid, a colorant, a binder, and a harsh organic solvent based on a total weight of the inkjet composition.
  • a sum of respective weight percentages of any acid, colorant, binder, and harsh organic solvent present in an inkjet composition is less than about 5.0 wt%, less than about 4.0 wt%, less than about 3.0 wt%, less than about 2.0 wt%, less than 1.0 wt%, or equal to 0.0 wt% based on a total weight of the inkjet composition.
  • the inkjet composition can include 0.0 wt% acid, colorant, binder, and/or harsh organic solvent in an inkjet composition.
  • the each of an acid, a colorant, a binder, and a harsh organic solvent can be present 0.0 wt% based on a total weight of an inkjet composition.
  • an inkjet composition can consist of or consist essentially of a given amount of aqueous solvent and wax, as detailed herein.
  • an inkjet composition can consist of or consist essentially of a given amount of aqueous solvent, co-solvent, and wax, as detailed herein.
  • an inkjet composition can consist of or consist essentially of a given amount of aqueous solvent, co-solvent, wax, and surfactant, as detailed herein. In some examples, an inkjet composition can consist of or consist essentially of a given amount of aqueous solvent, co-solvent, wax, surfactant, and additive, as detailed herein.
  • the additives in the inkjet compositions can be selected from the group consisting of anti-kogation agents, pH adjusters, antimicrobial agents, sequestering agents, viscosity modifiers, humectants, penetrants, wetting agents, preservatives, jettability additives, and mixtures thereof.
  • Kogation refers to the deposit of dried ink on a heating element of a thermal inkjet printhead.
  • An anti-kogation agent can be included to assist in preventing the buildup of kogation.
  • Anti-kogation agents can include an anionic surfactant, a nonionic surfactant, a zwitterionic surfactant, an amphoteric surfactant, or mixtures thereof. A list of surfactants is given above.
  • the anti-kogation agents can include oleth-3- phosphate (commercially available as CRODAFOS® 03A or CRODAFOS® N-3 acid) or dextran 500k.
  • the anti-kogation agent can be present in the inkjet composition in an amount ranging from about 0.1 wt% to about 3.0 wt% of the total weight of the inkjet composition.
  • a pH adjuster can be added to the inkjet compositions in some examples.
  • a pH adjuster can include sodium hydroxide, potassium hydroxide, ammonia, hydrochloric acid, nitric acid, sulfuric acid, and (poly)alkanolamines such as triethanolamine and 2-amino-2- methyl-l-propaniol, or mixtures thereof.
  • the inkjet composition can also include an antimicrobial agent.
  • Suitable antimicrobial agents include biocides and fungicides.
  • antimicrobial agents include ACTICIDE® M20 (i.e., active ingredient is 2-methyl-4- isothiazolin-3-one), ACTICIDE® B20 (i.e., active ingredient is l,2-benzisothiazolin-3- one), AMP (i.e., amino-tris-(methylene phosphonate), TRIS (i.e., tris(hydroxymethyl)nitromethane), and mixtures thereof.
  • Other examples of antimicrobial agent include NUOSEPT® (Ashland Inc.), UCARCIDETM or KORDEKTM (The Dow Chemical Co.), and PROXEL® (Arch Chemicals) series, and combinations thereof.
  • sequestering agents can be added to the inkjet compositions. These sequestering agents can be useful to impart improved stability characteristics to the inkjet composition and can include an alkali metal, an alkaline earth metal, and an ammonium salt of a linear aliphatic substituted glycine compound.
  • linear aliphatic substituted glycine designates glycine compounds in which the amino group of glycine has been substituted with linear aliphatic groups.
  • the sequestering agents can include the alkali metal (e.g., sodium), alkaline earth metal (e.g., calcium) and ammonium salts of ethylene diamine tetraacetic acid, nitrilo triacetic acid, diethylene triamine pentaacetic acid, hydroxyethylene diamine triacetic acid, dihydroxyethyl glycine, iminodiacetic acid and ethanol diglycine. Similar salts of other linear aliphatic substituted glycine compounds can also be used. [0049] In some examples, viscosity modifiers can be added to the inkjet compositions.
  • alkali metal e.g., sodium
  • alkaline earth metal e.g., calcium
  • ammonium salts ethylene diamine tetraacetic acid, nitrilo triacetic acid, diethylene triamine pentaacetic acid, hydroxyethylene diamine triacetic acid, dihydroxyethyl glycine, iminodiacetic acid and ethanol
  • viscosity modifiers include aliphatic ketones, stearone, 2-hydroxybenzyl alcohol, 4-hydroxybenzyl alcohol, 4-nitrobenzyl alcohol, 4-hydroxy-3-methoxy benzyl alcohol, 3-methoxy-4-nitrobenzyl alcohol, 2-amino-5-chlorobenzyl alcohol, 2-amino-5- methylbenzyl alcohol, 3-amino-2-methylbenzyl alcohol, 3-amino-4-methyl benzyl alcohol, 2(2-(aminomethyl)phenylthio)benzyl alcohol, 2,4,6-trimethylbenzyl alcohol, 2-amino-2- methyl- 1 ,3 -propanediol, 2-amino- 1 -phenyl- 1 ,3 -propanediol, 2,2-dimethyl- 1 -phenyl- 1,3- propanediol, 2-bromo-2-nitro- 1,3 -propanediol, 3 -tert-butylamino- 1,2-
  • the inkjet compositions can also contain penetrants for accelerating penetration of the inkjet composition into the substrate.
  • penetrants include polyhydric alcohol alkyl ethers (glycol ethers) and/or 1, 2-alky ldiols.
  • Suitable polyhydric alcohol alkyl ethers are ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, ethylene glycol mono-n-propyl ether, ethylene glycol mono-isopropyl ether, diethylene glycol mono-isopropyl ether, ethylene glycol mono-n-butyl ether, diethylene glycol mono- n-butyl ether, triethylene glycol mono-n-butyl ether, ethylene glycol mono-t-butyl ether, diethylene glycol mono-t-butyl ether, 1 -methyl- 1-methoxy butanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol mono-t-butyl ether, propylene glycol mono-n-propy
  • 1, 2-alky ldiols can include 1,2-pentanediol, 1,2-hexanediol, or combinations thereof.
  • the penetrant can also be selected from straight-chain hydrocarbon diols, such as 1,3 -propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,7-heptanediol, 1,8- octanediol, and combinations thereof.
  • the inkjet compositions can contain preservatives.
  • preservatives can include dichlorophene, hexachlorophene, 1, 2- benzothiazolin-3-one, 3,4-isothiazolin-3-one, or 4,4-dimethyl oxazolidine, alkyl isothiazolone, chloroalkyl isothiazolone, benzoisothiazolone, bromonitroalcohol, chloroxylenol, or mixtures thereof.
  • the additive can be added singularly or in various combinations to the inkjet compositions described herein in total amounts of from about 0.1 wt% to about 10.0 wt% based on the total weight of the inkjet composition.
  • a method of making an inkjet composition comprising mixing an aqueous solvent comprising water in an amount of from about 1.0 wt% to about 99.0 wt% based on the total weight of the inkjet composition, and a wax present in an amount of from about 0.1 wt%. to about 10.0 wt% of the total weight of the inkjet composition to form the inkjet composition.
  • the inkjet composition can be co-solvent free and can include from wax present in an amount of from about 0.1 wt%.
  • the method can comprise mixing a aqueous solvent comprising water in an amount of from about 1.0 wt% to about 99.0 wt% based on the total weight of the inkjet composition, a co-solvent present in an amount of from about 1.0 to about 20.0 wt% based on the total weight of the inkjet composition, and a wax present in an amount of from about 0.1 wt% to about 10.0 wt% of the total weight of the inkjet composition to form the inkjet composition.
  • the methods can make inkjet compositions that are colorant-free, binder-free, and/or harsh organic solvent/acid-free.
  • the methods can make inkjet compositions can be colorant-free, binder-free, and harsh organic solvent-free.
  • the method can include making an inkjet composition by mixing a solvent and the wax together, in an absence of a binder, to form the inkjet composition.
  • the inkjet compositions described can be used by applying the inkjet compositions to a print media substrate (i.e., substrate).
  • substrate can be a porous and/or non-porous.
  • the substrate is a porous substrate.
  • the substrate is a non-porous substrate.
  • the substrate can include substrates made from paper, metal, plastic, fabric, or combinations thereof.
  • the substrate can include plain papers, glass fiber, cotton linter, nitrocellulose, polycarbonate, polystyrene, polypropylene or other plastics, microporous photopapers, coated papers, glossy photopapers, semi-gloss photopapers, heavy weight matte papers, billboard papers, digital fine art papers, calendared papers, vinyl papers, or combinations thereof, among other possible types of substrates.
  • the substrate can be nitrocellulose.
  • the substrate can be coated and/or treated.
  • the substrate can be coated and/or treated to increase cell/protein adherence to the coated/treated substrate.
  • the inkjet composition can be applied to the substrate using any inkjet printer (e.g., thermal or piezoelectric).
  • a printhead device in an inkjet printer in order to initiate the printing process, can be activated to deliver an inkjet composition from a cartridge onto a substrate.
  • Activation of the printhead in an inkjet system can involve selective energization of resistors in order to heat the inkjet composition and thereby expel it from the cartridge containing the inkjet composition. If non-thermal-inkjet systems are used to deliver the composition, printhead activation can be accomplished using composition ejectors under consideration, with the procedures associated therewith varying from system to system.
  • references herein to “wt %” of a component are to the weight of that component as a percentage of the whole composition comprising that component
  • references herein to “wt%” of, for example, a solid material such as pigment or latex polymer dispersed in a liquid composition are to the weight percentage of those solids in the composition, and not to the amount of that solid as a percentage of the total non-volatile solids of the composition.
  • Wax - (LIQUILUBETM 405 Wax (polyethylene wax; sold by Lubrizol GmbH).
  • Surfactant - (TRITIONTM XI 00 - surfactant manufactured by Air Products and Chemicals, Inc.)
  • Inkjet compositions e.g., of Example 1 and Example 2 were formed as described herein.
  • the inkjet compositions were then printed at approximately 15 - 25 nanoliters per spot on a substrate (a porous Grade 1 filter paper available from WHATMANTM or a porous nitrocellulose membrane available from Thermo Scientific) in a predetermined pattern to form a sample.
  • the sample was then heated to 150 °C on a hot plate for 1 minute.
  • Inkjet compositions were formed as follows.
  • Example 1 The inkjet composition of Example 1 was formed as follows. The respective amounts of the components in Example 1 as illustrated in Table 1 below were mixed together in a vessel at room temperature and pressure to form the inkjet composition of EX1.
  • Example 2 The inkjet composition of Example 2 was formed as follows. The respective amounts of the components in Example 1 as illustrated in Table 1 below were mixed together in a vessel at room temperature and pressure to form the inkjet composition of EX2.
  • both the inkjet composition of EX1 (without a co-solvent) and the inkjet composition of EX2 (with co-solvent) were compatible with inkjet printing and successfully formed uniform and consistent fluidic structures when printed using an inkjet printer. That is, the inkjet compositions described herein are compatible with inkjet printing,
  • the inkjet compositions of EX1 and EX2 each include 0.0 weight percent of acid, colorant, binder, and harsh organic solvent.
  • the inkjet compositions of EX1 and EX2 do not include any acid, any colorant, any binder, nor any harsh organic solvent [0085] Without wishing to be bound by theory, it is believed that the inkjet compositions herein provide consistent and uniform fluidic structures in portions of immunoassays formed using the inkjet compositions due to the inkjet compositions herein being free of materials such as acids, colorants, binders, and/or harsh organic solvents that, if present, may negatively impact the consistent and reliable formation of fluidic structures.
  • the inkjet compositions herein provided consistent and uniform fluidic structures in portions of immunoassays as the compositions do not rely on melting/liquifying the inkjet compositions herein before printing the inkjet compositions.
  • the inkjet compositions herein can result in higher press speed, productivity, and suitability for a packaging market, because these inkjet compositions do not result in excessive servicing or other operational items, as compared to other inkjet compositions such as those which employ a heated and liquified material such as a wax, employ wax at a higher relative amount in an mixture, and/or other compositions which employ acids, colorants, binders, and/or harsh organic solvents/acids.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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'invention concerne des compositions pour jet d'encre. Dans un exemple, une composition pour jet d'encre peut comprendre un solvant aqueux présent en une quantité d'environ 1,0 % en poids à environ 99,0 pour cent en poids (% en poids) sur la base du poids total de la composition pour jet d'encre ; et une cire présente en une quantité d'environ 0,1 à environ 10,0 % en poids sur la base du poids total de la composition.
PCT/US2020/015304 2020-01-28 2020-01-28 Compositions pour jet d'encre WO2021154207A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2020/015304 WO2021154207A1 (fr) 2020-01-28 2020-01-28 Compositions pour jet d'encre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2020/015304 WO2021154207A1 (fr) 2020-01-28 2020-01-28 Compositions pour jet d'encre

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WO2021154207A1 true WO2021154207A1 (fr) 2021-08-05

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PCT/US2020/015304 WO2021154207A1 (fr) 2020-01-28 2020-01-28 Compositions pour jet d'encre

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2887969C (fr) * 2014-04-19 2018-09-25 Xerox Corporation Encre aqueuse pour impression par jet d'encre

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2887969C (fr) * 2014-04-19 2018-09-25 Xerox Corporation Encre aqueuse pour impression par jet d'encre

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