Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
• • 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
• • 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
  • D06P1/39—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 acid dyes
  • D06P1/40—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 acid dyes using acid dyes without azo groups
• • 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
  • D06P1/60—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 polyethers
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
  • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
  • D06P5/30—Ink jet printing

Definitions

• the present invention relates to a coloring liquid, a coloring liquid set including the coloring liquid, a recording medium to which the coloring liquid is attached, and a coloring method using the coloring liquid or the coloring liquid set.
• the inkjet recording method is a recording method in which ink droplets are made to fly from an inkjet head toward a recording medium (paper, cloth, etc.) and the ink droplets are attached to the recording medium.
• the mechanism of the inkjet recording method is relatively simple and inexpensive; high-definition and high-definition images can be formed; high-speed recording is possible; noise during recording is low; color recording is easy; etc. Due to its advantages, it has rapidly become widespread and is developing further in recent years.
• the inkjet recording method includes a continuous method of continuously flying droplets and an on-demand method of flying droplets in response to an image information signal.
• the ejection method is a method in which pressure is applied by a piezo element to eject droplets; a method in which bubbles are generated in the ink by heat to eject droplets; a method using ultrasonic waves; a liquid by electrostatic force. A method of sucking and discharging droplets; and the like.
• inks suitable for such inkjet recording include water-based inks, oil-based inks, solid (melt type) inks, and the like.
• a printing method for printing an image on a cloth or the like a screen printing method, a roller printing method, a rotary screen printing method, a transfer printing method, etc. are known.
• these printing methods it is necessary to prepare expensive screen frames, engraving rollers, transfer paper, etc. every time the image design is changed, so it is not suitable for high-mix low-volume production in terms of cost, and it is not suitable for fashion. It was difficult to respond quickly to diversification.
• a technique of reading a sample with a scanner, performing image processing with a computer, and printing the result by an inkjet recording method hereinafter, also referred to as "inkjet printing” has been developed.
• inkjet recording method By applying such an inkjet recording method, it is not necessary to produce a plate, which is required in the conventional printing method, and an image having excellent gradation can be quickly formed. Therefore, delivery time can be shortened and high-mix low-volume production can be performed. It becomes possible to deal with. Further, since the inkjet printing uses only the required amount of ink at the time of image formation, it has environmental advantages such as less waste liquid as compared with the conventional screen printing and the like. On the other hand, inks used in inkjet printing are required to have performances such as dye solubility, storage stability, wet fastness, and light resistance.
• Acid Red 260 is a dye having excellent wettability and light resistance, but has problems such as its solubility and storage stability when it is used as a coloring solution. At the same time, when the coloring liquid is used for inkjet recording, it is required to have excellent ejection stability.
• the present invention describes C.I. I.
• a coloring solution containing Acid Red 260 which has excellent storage stability and excellent ejection stability when used for inkjet recording, a coloring solution set including the coloring solution, a recording medium to which the coloring solution is attached, and the like.
• An object of the present invention is to provide a coloring method using a coloring liquid or a coloring liquid set.
• C. I. A coloring liquid containing Acid Red 260 and a triethylene glycol alkyl ether compound. 2) The coloring liquid according to 1), wherein the triethylene glycol alkyl ether compound is a triethylene glycol monoalkyl ether compound. 3) The coloring solution according to 2), wherein the triethylene glycol monoalkyl ether compound contains at least one selected from triethylene glycol monobutyl ether and triethylene glycol monomethyl ether. 4) The coloring solution according to any one of 1) to 3), which contains a compound having a LogP value of less than 1. 5) The coloring solution according to 4), which contains two or more compounds having a LogP value of less than 1.
• a colorant set comprising the colorant according to any one of 1) to 7) and at least one colorant having a hue different from that of the colorant.
• C.I. I. A coloring solution containing Acid Red 260, which has excellent storage stability and excellent ejection stability when used for inkjet recording, a coloring solution set including the coloring solution, a recording medium to which the coloring solution is attached, and the like. It is possible to provide a coloring method using a coloring liquid or a coloring liquid set.
• the coloring liquid according to this embodiment is C.I. I. Contains Acid Red 260 and triethylene glycol alkyl ether compounds. "CI” is an abbreviation for Color Index.
• each component contained in the coloring liquid according to the present embodiment will be described in detail.
• Acid Red 260 C. I. Acid Red 260
• the content of Acid Red 260 is preferably 0.2 to 20% by mass, and more preferably 1 to 10% by mass, based on the total mass of the coloring liquid.
• Triethylene glycol alkyl ether compound examples include triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monopropyl ether, triethylene glycol monoisopropyl ether, triethylene glycol monobutyl ether, and triethylene glycol monododecyl ether. And the like; triethylene glycol monoalkyl ether compounds such as triethylene glycol dimethyl ether, triethylene glycol diethyl ether, triethylene glycol dibutyl ether, triethylene glycol dialkyl ether compounds such as triethylene glycol butyl methyl ether; and the like.
• triethylene glycol alkyl ether compounds a triethylene glycol monoalkyl ether compound is preferable, and at least one selected from triethylene glycol monomethyl ether and triethylene glycol monobutyl ether is more preferable.
• the total content of the triethylene glycol alkyl ether compound is preferably 0.5 to 90% by mass, more preferably 1 to 80% by mass, and 2 to 50% by mass with respect to the total mass of the coloring liquid. It is more preferably mass%.
• the coloring liquid according to the present embodiment preferably further contains a compound having a LogP value of less than 1.
• the LogP value is a logarithmic value of 1-octanol / water partition coefficient and is an index showing the hydrophilicity / hydrophobicity of a substance.
• As the LogP value either a calculated value or an actually measured value may be used.
• Examples of compounds having a LogP value of less than 1 include monovalent alcohols such as methanol, ethanol and isopropyl alcohol; ketones or ketone alcohols such as acetone and diacetone alcohol; ethers such as tetrahydrofuran and dioxane; diethylene glycol, Oxyethylene or oxypropylene addition polymer such as triethylene glycol, tetraethylene glycol, tripropylene glycol, polyethylene glycol, polypropylene glycol; 2 to 2 carbon atoms of ethylene glycol, propylene glycol, trimethylene glycol, butylene glycol, hexylene glycol, etc.
• monovalent alcohols such as methanol, ethanol and isopropyl alcohol
• ketones or ketone alcohols such as acetone and diacetone alcohol
• ethers such as tetrahydrofuran and dioxane
• diethylene glycol, Oxyethylene or oxypropylene addition polymer such as triethylene glycol, t
• the coloring liquid according to the present embodiment is at least one selected from the group consisting of triethylene glycol, diethylene glycol, and diethylene glycol alkyl ether compound among the compounds having a LogP value of less than 1 (hereinafter, "triethylene glycol or the like"). It is also preferable to contain (also referred to as)), and it is more preferable to contain triethylene glycol.
• the diethylene glycol alkyl ether compound include a diethylene glycol monoalkyl ether compound and a diethylene glycol dialkyl ether compound.
• the coloring liquid according to the present embodiment contains triethylene glycol or the like
• the ratio of triethylene glycol to the triethylene glycol alkyl ether compound in the coloring liquid is preferably 10: 1 to 1:10 by mass ratio, and more preferably 5: 1 to 1: 5. It is more preferably 2: 1 to 1: 2.
• the content of Acid Red 260 is 1 part by mass
• the content of triethylene glycol and the triethylene glycol alkyl ether compound is preferably 0.5 parts by mass or more.
• the total content of the compounds having a LogP value of less than 1 is preferably 0.5 to 90% by mass, more preferably 1 to 80% by mass, based on the total mass of the coloring liquid. It is more preferably to 50% by mass.
• the coloring liquid according to the present embodiment further preferably further contains at least one selected from a moisturizer and a surfactant, and more preferably contains both a moisturizer and a surfactant.
• Moisturizers include, for example, methylurea, ethylurea, N, N'-diethylurea, urea, thiourea, ethyleneurea, N, N'-dihydroxyethylurea, diglycerin, polyglycerin, and polyglyceryl ether compounds (Sakamoto Yakuhin).
• the coloring liquid according to the present embodiment contains a moisturizer
• the content thereof is preferably 1 to 20% by mass, more preferably 3 to 10% by mass, based on the total mass of the coloring liquid. preferable.
• surfactant examples include anion, cation, amphoteric, nonionic and other surfactants. Of these, nonionic surfactants are preferred.
• anionic surfactant examples include alkyl sulfocarboxylates, ⁇ -olefin sulfonates, polyoxyethylene alkyl ether acetates, N-acylamino acids or salts thereof, N-acylmethyl taurine salts, and alkyl sulfate polyoxys.
• Examples of the cationic surfactant include 2-vinylpyridine derivatives and poly4-vinylpyridine derivatives.
• amphoteric surfactant examples include lauryldimethylaminoacetic acid betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, coconut oil fatty acid amide propyldimethylaminoacetic acid betaine, polyoctylpolyaminoethylglycine, and imidazoline. Examples include derivatives.
• nonionic surfactant examples include ethers such as polyoxyethylene nonylphenyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene dodecylphenyl ether, polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, and polyoxyethylene alkyl ether.
• Esters such as polyoxyethylene oleic acid ester, polyoxyethylene distearate, sorbitan laurate, sorbitan monostearate, sorbitan monooleate, sorbitan sesquioleate, polyoxyethylene monooleate, polyoxyethylene stearate, etc.
• the coloring liquid according to the present embodiment contains a surfactant
• the content thereof is preferably 0.01 to 1% by mass, preferably 0.1 to 1% by mass, based on the total mass of the coloring liquid. Is more preferable.
• the coloring liquid according to the present embodiment preferably further contains water.
• water water having few impurities such as ion-exchanged water and distilled water is preferable.
• the content thereof is preferably 10 to 95% by mass, more preferably 25 to 85% by mass, based on the total mass of the coloring liquid. ..
• the coloring liquid according to the present embodiment may further contain a preparation agent such as a pH adjuster and an antiseptic / antifungal agent.
• a preparation agent such as a pH adjuster and an antiseptic / antifungal agent.
• the total content of these preparations is usually 0 to 10% by mass, preferably about 0.05 to 5% by mass, based on the total mass of the coloring liquid.
• any substance can be used as long as the pH of the coloring liquid can be controlled in the range of 6.0 to 11.0.
• the pH adjuster include alkanolamines such as diethanolamine, dimethylethanolamine, diethylethanolamine and triethanolamine; hydroxides of alkali metals such as lithium hydroxide, sodium hydroxide and potassium hydroxide; and ammonium hydroxide (ammonium hydroxide). Ammonia water); alkali metal carbonates such as lithium carbonate, sodium carbonate, potassium carbonate; tris (hydroxymethyl) aminomethane; and the like. Of these, triethanolamine is preferred.
• the content of the pH adjuster is usually 0.01 to 2% by mass, preferably 0.05 to 1% by mass, based on the total mass of the coloring liquid.
• antiseptic and fungicides include sodium dehydroacetate, sodium benzoate, sodium pyridinethione-1-oxide, zincpyridinthione-1-oxide, 1,2-benzisothiazolin-3-one, and 1-benzisothiazolin-.
• examples thereof include 3-one amine salt, Proxel GXL manufactured by Lonza Japan Co., Ltd., Proxel XL2 and the like. Among these, Proxel GXL and Proxel XL2 are preferable.
• the coloring liquid according to the present embodiment is obtained by mixing each of the above components into a solution.
• the order in which each component is added is not particularly limited.
• the coloring liquid is used as an ink for inkjet recording described later, it is preferable to perform microfiltration using a membrane filter or the like.
• the pore size of the membrane filter is usually 0.1 to 1 ⁇ m, preferably 0.1 to 0.8 ⁇ m.
• the viscosity of the coloring liquid according to the present embodiment at 25 ° C. is preferably 30 mPa ⁇ s or less when measured with an E-type viscometer. Further, the surface tension of the coloring liquid according to the present embodiment at 25 ° C. is preferably about 20 to 70 mN / m, more preferably about 25 to 60 mN / m when measured by the plate method. ..
• the coloring liquid is used as the ink for inkjet recording described later, it is preferable to adjust the value to an appropriate value in consideration of the ejection amount, the response speed, the flight characteristics of the droplets, the characteristics of the inkjet head, etc. of the inkjet printer used.
• the coloring liquid according to this embodiment can be used for various recording applications such as printing, copying, marking, writing, drafting, stamping, etc., and is particularly suitable for inkjet recording.
• the coloring liquid according to the present embodiment may be used as the ink for inkjet recording, or other additives may be further contained if necessary.
• Other additives include, for example, anti-drying agents (wetting agents), anti-fading agents, emulsion stabilizers, penetration promoters, UV absorbers, preservatives, fungicides, pH regulators, surface tension regulators, defoamers.
• Known additives such as foaming agents, viscosity regulators, dispersants, dispersion stabilizers, rust preventives, chelating agents, moisturizers, solubilizers and the like can be mentioned. In the case of water-based ink, these various additives are added directly to the ink liquid.
• these various additives are generally added after the preparation of the dye dispersion, but are added to the oil phase or the aqueous phase at the time of preparation of the dye dispersion. May be good.
• the coloring liquid according to the present embodiment is used as the ink for inkjet recording, C.I. I. It is preferable to contain Acid Red 260 in an amount of 0.2 to 10% by mass. Ink for inkjet recording includes C.I. I. Other pigments may be used in combination with Acid Red 260. When two or more kinds of dyes are used in combination, it is preferable that the total content of the dyes is in the above range.
• the coloring liquid according to this embodiment can be used not only for monochromatic image formation but also for full-color image formation.
• the coloring liquid according to the present embodiment is used as a magenta coloring liquid, and a three-primary color coloring liquid set to which a cyan coloring liquid and a yellow coloring liquid are added, and further, a black coloring liquid is added thereto. It is possible to make a four-color coloring liquid set.
• the coloring liquid according to the present embodiment is used as a red coloring liquid, and a magenta coloring liquid, a light magenta coloring liquid, a blue coloring liquid, a green coloring liquid, an orange coloring liquid, and a dark yellow color are used. It is also possible to make a coloring liquid set to which a coloring liquid, a gray coloring liquid and the like are added. In particular, it is preferable to use the coloring liquid according to the present embodiment as the magenta coloring liquid and to prepare a coloring liquid set to which a cyan coloring liquid is added.
• the coloring liquid according to the present embodiment may be used as a magenta coloring liquid, a red coloring liquid, or a rubin coloring liquid, and a coloring liquid set in which different color tones are added may be used.
• the coloring liquid according to the present embodiment may be a magenta coloring liquid and set with a red coloring liquid, or the coloring liquid according to the present embodiment may be a red coloring liquid and set with a magenta coloring liquid, or the coloring according to the present embodiment may be set. It is also possible to use the liquid as a rubin coloring liquid and set it with a magenta coloring liquid or a red coloring liquid.
• the dye contained in the coloring liquid to be set with the coloring liquid according to the present embodiment include a known yellow dye, a known magenta dye, a known cyan dye, and a known black dye.
• Known yellow dyes include, for example, azo dyes having aryls and / or heteroaryls; methine dyes such as benzylidene dyes and monomethineoxonol dyes; quinone dyes such as naphthoquinone dyes and anthraquinone dyes; quinophthalone dyes; Examples thereof include nitro-nitroso dyes; acridine dyes; acridinone dyes; and the like.
• magenta dye As a known magenta dye, C.I. I. It can be arbitrarily selected from dyes having a structure other than acid red 260, for example, azo dyes having aryl and / or heteroaryl; azomethine dyes; methines such as allylidene dyes, styryl dyes, merocyanine dyes, cyanine dyes, and xanthol dyes.
• Examples thereof include carbonium dyes such as diphenylmethane dyes, triphenylmethane dyes and xanthene dyes; quinone dyes such as naphthoquinone, anthraquinone and anthraquinone; condensed polycyclic dyes such as dioxazine dyes.
• carbonium dyes such as diphenylmethane dyes, triphenylmethane dyes and xanthene dyes
• quinone dyes such as naphthoquinone, anthraquinone and anthraquinone
• condensed polycyclic dyes such as dioxazine dyes.
• cyanine pigments include, for example, phthalocyanine pigments, naphthalocyanine pigments, azo pigments having aryl and / or heteroaryl; azomethine pigments; allylidene pigments, styryl pigments, merocyanine pigments, cyanine pigments, oxonol pigments and the like.
• Metin dyes carbonium dyes such as diphenylmethane dyes, triphenylmethane dyes and xanthene dyes; quinone dyes such as naphthoquinone, anthraquinone and anthraquinone; condensed polycyclic dyes such as dioxazine dyes; and the like.
• black dyes examples include metal-containing azo compounds, azo dyes such as disazo, trisazo, and tetraazo; sulfur dyes; dispersions of carbon black; and the like.
• Coloring liquids other than the coloring liquid using Acid Red 260 are C.I. I.
• a dye having a structure other than Acid Red 260 is arbitrarily selected and used.
• the coloring liquid according to the present embodiment may be used by mixing the above dyes and adjusting the color.
• Each coloring liquid used in the coloring liquid set may also be used by mixing the above dyes and adjusting the color.
• the coloring method according to the present embodiment is to attach the coloring liquid according to the present embodiment or each coloring liquid provided in the above-mentioned coloring liquid set to a recording medium for coloring. Further, the recording medium according to the present embodiment has the coloring liquid according to the present embodiment attached.
• Recording media include information transmission sheets such as plain paper, resin-coated paper, inkjet paper, glossy paper, glossy film, and electrophotographic paper; fibers (cotton, linen, nylon, wool, silk, etc.), fabrics; glass. Metals; ceramics; leather; base materials for color filters; etc.
• a sheet-shaped recording medium is preferably used, but a recording medium having a three-dimensional shape such as a spherical shape or a rectangular parallelepiped shape other than the sheet shape may be used.
• the method of adhering the coloring liquid to the recording medium is not particularly limited, and for example, an inkjet recording method is preferable.
• a container containing a coloring liquid (ink for inkjet recording) is loaded in a predetermined position of an inkjet printer, and droplets of the coloring liquid are ejected onto a recording medium to adhere to the recording.
• An image may be formed.
• the inkjet printer include a piezo type printer using mechanical vibration; a bubble jet (registered trademark) type printer using bubbles generated by heating; and the like, and any method can be used.
• a preferable recording medium used for inkjet recording is, for example, a medium such as paper, synthetic paper, or film provided with an ink receiving layer.
• the ink receiving layer is a method of impregnating or coating the above-mentioned base material with a cationic polymer; inorganic fine particles capable of absorbing dyes in a coloring liquid such as porous silica, alumina sol, and special ceramics, such as polyvinyl alcohol and polyvinylpyrrolidone. It is provided by a method of coating the surface of a substrate together with a hydrophilic polymer; etc.
• Recording media provided with such an ink receiving layer are usually referred to as inkjet paper (film), glossy paper (film), or the like.
• Typical examples of special paper that can be obtained as a commercial product are Canon Inc., product name: Photo Paper / Glossy Pro "Platinum Grade", Photo Paper / Glossy Gold; Seiko Epson Co., Ltd., Product Name: Photo Paper Crispia (high gloss), photo paper (gloss), photo matte paper; manufactured by Nippon Hulett Packard Co., Ltd., product name Advanced Photo Paper (gloss); manufactured by Brother Co., Ltd., product name Premium Plus Glossy Photo Paper; etc.
• plain paper can also be used, specifically, Canon Inc., product name PB Paper GF500; Seiko Epson Co., Ltd., product name double-sided high-quality plain paper; PPC (plain paper copy) paper; etc. Be done.
• a polymer fine particle dispersion (also referred to as polymer latex) may be used for the purpose of imparting glossiness or water resistance to the image; for the purpose of improving weather resistance, and the like.
• the timing of applying the polymer latex to the recording medium may be before, after, or at the same time as applying the ink to the recording medium.
• the recording medium containing the polymer latex may be recorded with the ink for inkjet recording, or the ink may contain the polymer latex.
• the polymer latex may be applied to the recording medium as a single liquid before or after recording on the recording medium with the ink.
• a cloth is mentioned as a preferable recording medium used for inkjet recording.
• those containing cellulosic fibers, polyamide fibers and the like are preferably used.
• cellulosic fibers include cotton, hemp, rayon, polynosic and the like.
• the polyamide fiber include silk, hair, nylon and the like.
• the fabric containing the cellulosic fiber or the polyamide fiber is preferably one made of 100% cellulosic fiber or the polyamide fiber, but may contain other materials.
• the blending ratio of the cellulosic fiber or the polyamide fiber is preferably 30% or more, and more preferably 50% or more.
• the method for printing a fabric by using an inkjet printing method includes using the coloring liquid according to the present embodiment as an ink and sequentially performing at least the following steps.
• the method for inkjet printing of a fabric includes a printing step of applying a coloring liquid to the fabric.
• a cloth containing cellulose fibers or polyamide fibers is preferable.
• the method of inkjet printing of a fabric may include a pretreatment step of applying a pretreatment agent to the fabric as a step before performing the printing step so that the dye immobilization reaction in the printing step is promoted.
• Pretreatment agent examples include those containing components such as a hydrotropy agent, a water-soluble metal salt, a pH adjuster, a pH buffer, a polymer component, and a surfactant.
• the hydrotropy agent generally plays a role of increasing the color density of the image when the fabric to which the coloring liquid is applied is heated under steam.
• examples of the hydrotropy agent include urea, alkylurea, ethyleneurea, propyleneurea, thiourea, guanidineate, tetraalkylammonium halide and the like.
• water-soluble metal salt examples include compounds that form typical ionic crystals and have a pH of 4 to 10, such as halides of alkali metals or alkaline earth metals.
• Typical examples of such compounds include NaCl, Na 2 SO 4 , KCl, CH 3 COONa and the like as alkali metal salts, and CaCl 2 , MgCl 2 and the like as alkaline earth metal salts.
• salts of Na, K, and Ca are preferable.
• the pH adjuster generally plays a role in enhancing the immobilization reaction of various dyes on the fabric.
• the pH adjuster is a compound or composition that adjusts the pH of the ink applied to the fabric, and refers to a component that changes the pH of the ink.
• Examples of the pH adjuster include alkali, acid, or a combination of alkali and acid.
• the pH buffer plays a role in enhancing the immobilization reaction of various dyes on the fabric.
• Examples of the pH buffer include sodium hydrogen carbonate, sodium carbonate, ammonium sulfate, sodium acetate and the like.
• the polymer component generally serves as a glue that imparts various dyes to the fabric.
• the polymer component may be either a natural polymer compound or a synthetic polymer compound, but when the coloring liquid contains water, it is preferably a water-soluble polymer.
• the water-soluble polymer include starch substances such as corn and wheat; cellulosic polymer compounds such as carboxymethyl cellulose, methyl cellulose and hydroxyethyl cellulose; many such as sodium alginate, arabia rubber, locust bean gum, tranth gum, guar gum and tamarind seeds.
• natural water-soluble polymer compounds such as sugar-based water-soluble polymer compounds; protein-based substances such as seratin and casein; tannin-based substances; and lignin-based substances.
• Examples of the synthetic water-soluble polymer compound include known polyvinyl alcohol-based compounds, polyethylene oxide-based compounds, acrylic acid-based water-soluble polymer compounds, and maleic anhydride-based aqueous polymer compounds. Among these, polysaccharide-based water-soluble polymer compounds and cellulosic polymer compounds are preferable.
• the surfactant examples include anions, nonions, cations, and amphoteric surfactants.
• the anionic, nonionic, and amphoteric surfactants may be the same as those listed in the section of the ink composition, respectively, and in particular, a nonionic surfactant having an HLB value of 12.5 or more is preferable, and an HLB value of 14 or more is preferable. Nonionic surfactants are more preferred.
• As the cationic surfactant an alkylamine salt, a quaternary ammonium salt and the like can be used.
• As the amphoteric surfactant a betaine type or the like can be used.
• the pretreatment agent may contain additives such as a reduction agent, an antioxidant, a leveling agent, and a deep dyeing agent, depending on the characteristics of the dye used.
• the pretreatment agent may be applied to the fabric as a mixture of various components such as a hydrotropy agent and a surfactant, or each component may be sequentially applied to the fabric.
• Examples of the method of applying the pretreatment agent to the fabric include a dipping method, a pad method, a coating method, a spray method, an inkjet method and the like. Among these, it is preferable to pad the pretreatment agent in the range of a drawing ratio of 5 to 150%, preferably 10 to 130%.
• the fabric after the printing step is preferably subjected to a post-treatment step to promote the fixing of the dye to the fabric, and then the dye, other components, and the pretreatment agent that have not been fixed can be sufficiently removed.
• the post-treatment step is usually divided into several steps.
• the post-treatment step can be obtained by performing the pre-drying step, the steam step, the washing step, and the drying step in this order.
• the fabric to which the coloring liquid is applied is left at room temperature to 150 ° C. for 0.5 to 30 minutes to pre-dry the coloring liquid.
• This pre-drying also includes permeation of the coloring liquid into the fabric.
• the fabric can be rolled into a roll, supplied to an inkjet printer for printing, and then dried using a dryer before the image-formed fabric is wound up.
• the dryer may be directly connected to the inkjet printer or may be separated from the inkjet printer.
• the image-formed fabric is preferably dried at room temperature to 150 ° C. for 0.5 to 30 minutes.
• Preferred drying methods include an air convection method, a heating roll direct attachment method, an irradiation method and the like.
• the steam step is a step of promoting the immobilization of the dye on the cloth by exposing the cloth to which the coloring liquid is applied to saturated steam.
• the steam step preferably changes its conditions, particularly its time, depending on the type of fabric.
• the steaming time is preferably 1 to 120 minutes, more preferably about 3 to 60 minutes.
• the steaming time is preferably about 1 to 30 minutes.
• washing process By the above steps, most of the dyes adhere to the fabric, but some dyes may not adhere to the fabric. It is preferable to wash away this unfixed dye.
• a conventionally known cleaning method can be used to remove the unfixed dye. For example, it is preferable to use water or warm water in the range of room temperature to 100 ° C., or to use an anion or nonionic soaping agent. If the unfixed dye is not completely removed, good results may not be obtained in various wet fastness, for example, wash fastness, sweat fastness and the like.
• the inkjet printing method described above is preferably a method of applying the coloring liquid according to the present embodiment to a fabric containing polyamide fibers or cellulose fibers.
• a fabric containing polyamide fibers or cellulose fibers By applying the coloring liquid according to the present embodiment to a fabric containing polyamide fibers or cellulose fibers, it is possible to form a colored portion which exhibits a good hue and is excellent in color developing property and fastness.
• the dyed portion of the fabric printed with the coloring liquid according to the present embodiment exhibits a good hue and is excellent in color development and fastness.
• a fabric containing polyamide fibers is printed, it is possible to form a dyed portion on the fabric which exhibits high color development property and is excellent in color development property and printing characteristics as compared with the case where a conventional coloring liquid is used.
• the dyeing method for fabrics is roughly classified into a dyeing method and a printing method.
• the dyeing method is a dyeing method in which a cloth to be dyed is immersed in a dye solution in which a dye is dissolved or dispersed in a solvent, the cloth to be dyed is uniformly adsorbed on the fiber surface, the dye is diffused inside the fiber, and dyeing is performed by bonding.
• the printing method is a dyeing method in which a dye or pigment is applied on a cloth to be dyed to give a pattern shape, and the dyeing pigment is dyed or fixed to produce a dyed product having a pattern. Use to develop a pattern effect on the cloth to be dyed.
• screen printing using a plate, roller printing, transfer printing using a transfer paper, and non-plate-making inkjet printing are performed.
• the above-mentioned coloring liquid is used as a color paste for printing on a fabric via a printing plate or transfer paper.
• the method for printing the fabric preferably includes at least the following steps (1) to (4). (1) A step of adding a coloring liquid to a liquid containing at least a polymer compound and water to prepare a color paste. (2) The step of imprinting the color paste of (1) above on the fabric, (3) The process of applying steam to the stamped fabric, (4) A step of washing the stamped fabric with water and drying the washed fabric.
• the color paste satisfies the printing suitability suitable for printing on a printing plate and the printing suitability required for a printed matter such as dyeing and washing with water. Therefore, for the purpose of imparting printing suitability and printing suitability, the color paste may contain a paste, a solvent, a dyeing aid, and the like in addition to the dye.
• a water-soluble polymer is preferable.
• the water-soluble polymer include known natural polymers such as starches, seaweeds, natural gums, cellulose derivatives, sodium alginate, protein substances, tannin-based substances, and lignin-based substances.
• known synthetic polymers such as polyvinyl alcohol-based compounds, polyethylene oxide-based compounds, acrylic acid-based aqueous polymers, styrene-based aqueous polymers, and maleic anhydride-based aqueous polymers are also used as pastes.
• a water-soluble solvent is preferably used, and a solvent containing at least water is preferably used.
• dyeing aids include color formers (acids, alkalis, etc.), dye solubilizers, wetting agents, moisturizing agents, deep dyeing agents, antioxidants, metal ion encapsulants, ultraviolet absorbers, dispersants, leveling agents. , Discharge agent, preservative, antifungal agent, antioxidant, migration inhibitor, dye fixing agent, antifoaming agent and the like.
• a dye solution in which the glue is dissolved or dispersed in a solvent is added to the dye solution, and a dye solution in which the dye is dissolved or dispersed in the solvent is added and stirred to prepare the color paste.
• a dye solution in which the glue is dissolved or dispersed in a solvent is added to the dye solution, and a dye solution in which the dye is dissolved or dispersed in the solvent is added and stirred to prepare the color paste.
• the printing method unlike the dipping method, after printing the color paste on the cloth (the step of printing the color glue on the cloth), the color material printed on the cloth is dyed on the fibers.
• This step is called a "coloring step", and there are a method using heated air, a method using atmospheric pressure saturated steam, and a method using superheated steam, and the method using normal pressure saturated steam is preferable.
• the temperature and time for treating with steam vary depending on the type of color paste and the type of fabric, but the temperature is preferably 90 to 140 ° C, more preferably 100 to 108 ° C. The time is preferably 1 to 60 minutes, more preferably 10 to 40 minutes.
• TEG Triethylene glycol (manufactured by Kanto Chemical Co., Inc.)
• TEGMBE Triethylene glycol monobutyl ether (manufactured by Kanto Chemical Co., Inc.)
• TEGMME Triethylene glycol monomethyl ether (manufactured by Kanto Chemical Co., Inc.)
• 2Py 2-Pyrrolidone (manufactured by Tokyo Chemical Industry Co., Ltd.)
• Gly Glycerin (manufactured by Kanto Chemical Co., Inc.)
• Example 10 to 15 Preparation of ink for inkjet recording> Each component shown in Table 5 below is mixed, stirred for 1 hour, and filtered through a membrane filter (trade name: cellulose acetate filter paper, manufactured by Advantech) having a pore size of 0.45 ⁇ m. Different types of ink were prepared. The "water” used for preparing the ink was ion-exchanged water, and water was added to adjust the total amount to 100 parts. The abbreviations in Table 5 represent the following.
• TEG Triethylene Glycol TEGMBE: Triethylene Glycol Monobutyl Ether 2Py: 2-Pyrrolidone
• Gly Glycerin TEA: Triethanolamine Surfinol 465: Surfactant (manufactured by Nissin Chemical Industry Co., Ltd.)
• Proxel XL2 Antifungal agent (manufactured by Lonza Japan Co., Ltd.)
• a pretreatment agent containing 2 parts of guar, 2 parts of ammonium sulfate, 5 parts of urea, and 91 parts of water was prepared, and the silk cloth was pretreated by the pad method. Specifically, the silk cloth was immersed in a pretreatment agent, excess liquid was squeezed out with a rubber roller, and then dried at 60 ° C.
• a container filled with the inks of Examples 10 to 15 is loaded into an inkjet printer PX-205 (manufactured by Seiko Epson Corporation), and has five stages of 100%, 80%, 60%, 40%, and 20% concentrations. A gradation image pattern was created so that gradation could be obtained, and the preprocessed silk cloth was imprinted.
• the obtained stamp was pre-dried at 60 to 80 ° C., and then steamed for 30 minutes under the conditions of a humidity of 90% or more and 100 to 103 ° C. Then, the imprint was washed with cold water for 5 minutes and then dried to obtain a red test dyed cloth.
• the inks of Examples 10 to 15 were excellent in ejection stability to paper and cloth, and the image could be reproduced. Further, the inks of Examples 10 to 12, 14 and 15 were also excellent in printing characteristics, and a test printed matter having a uniform dot diameter could be obtained.

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• Engineering & Computer Science (AREA)
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• Organic Chemistry (AREA)
• Inks, Pencil-Leads, Or Crayons (AREA)
• Ink Jet Recording Methods And Recording Media Thereof (AREA)

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• 2020
  • 2020-08-24 JP JP2021542868A patent/JPWO2021039685A1/ja active Pending
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