Solvent-containing ink for printing devices based on dispersion of pigment in nonaqueous solvents

FIELD: office machinery facilities.

SUBSTANCE: invention provides nonaqueous fluorescent inc composition containing dispersion of fluorescent pigment and high-boiling organic solvent as well as plasticizers, surface film formation-preventing substances, lubricants, and stabilizers. Invention also discloses printing device containing such composition.

EFFECT: enhanced natural bright color of ink in bulk and when applied on paper.

42 cl, 3 tbl, 3 ex

 

The technical field to which the invention relates.

The present invention relates to compositions of fluorescent ink for writing instruments, writing instruments, providing the use of the ink composition. The ink composition containing a fluorescent pigment dispersed in the resin, and an organic solvent with high boiling point.

Background of invention

Modern writers nodes with bright inks are either writing nodes with gel ink, which requires pusher for grease and sealant writing element, or writing nodes with a free ink in which the ink viscosity is low (less than 1000 CP) and requires a mechanism for flow control, for example, the screen for changing the direction of the jet and/or capillary connectors. In U.S. patent No. 4671691 (Case et al.) and no 4726845 (Thompson et al.) disclosed writers sites with water ink gels. In U.S. patent No. 3446564 (Horie), 3533708 (Horie), 3572954 (Chevron), 3873218 (Yoshida) and in U.S. patent No. 3951555 (Wittnebert et al.) revealed writing instruments using a liquid tanks with a porous rods for the ink supply. The disadvantage of using porous rods for ink supply is the ability to interrupt the continuous flow of ink through the writing tool element to the paper.

P is the awning U.S. No. 3753921 (Noetzel et al.) disclosed are fluorescent pigments, dispersed in the resin with an average particle size of from 0.1 to 5 μm, intended to receive printing inks. In addition, in example 1 of the said patent (Noetzel) indicated that the obtained fluorescent in daylight pigment is not soluble in heptane, xylene, ethanol, butanol, butyl acetate and acetone. In U.S. patent No. 3753921 not disclosed the use of these fluorescent pigments in inks for writing instruments.

In U.S. patent No. 3455856 (Voedisch) disclosed printing ink and a method of manufacturing a pigment dispersion, which contains a pigmented resin particles suspended in the carrier in the form of modified oil alkyd resin. Disclosed are fluorescent and do not emit fluorescence pigments. In U.S. patent No. 3455856 not disclosed organic solvents of the present invention, not disclosed ink compositions for writing instruments.

In U.S. patent No. 4079026 (Mone) disclosed printing ink based on the extraction of essential oils, which contain pigments, dispersed in the organic resin, and the solvent oil. The pigments can be fluorescent and do not emit fluorescence. Particularly preferred are dyes, fluorescent in daylight, and solvents oil with a boiling point of about 200°With, for example selling Magie Bros. Oil Company. The paint is designed for IP is of use when flat or letterpress, but not for writing instruments.

In U.S. patent No. 5290348 (Auslander) revealed non-aqueous fluorescent dye and a non-aqueous dispersion of pigments, stable esterified rosin, alkyd resin with linseed oil or other alkyd resins. The average particle size of the fluorescent pigment is from 0.1 to 0.5 μm. Fluorescent ink from the said patent (Auslander) fluoresce when irradiated with ultraviolet light. In U.S. patent No. 5290348 not disclosed pigments, fluorescent in daylight, and not shown their use in inks for writing instruments.

In U.S. patent No. 5849814 (Fujita) disclosed composition erasable ink, designed for acquiring images on the cardboard. The composition comprises a pigment, a resin for dispersing pigment, non-aqueous, non-volatile at ambient temperature liquid substance that promotes abrasion, and non-aqueous, volatile at ambient temperature, organic solvent, and the amount of resin for dispersing pigment in relation to pigment is from about 2 to about 10%. Disclosed pigments are fluorescent and do not emit fluorescence pigments. In U.S. patent No. 5849814 disclosed the use of a volatile solvent at ambient temperature. In addition, it is argued that the main advantage is oppozitsii paint of this patent is a time-erasing regardless of the nature of the surface of the cardboard for printing images. In U.S. patent No. 5849814 not disclosed ink compositions for writing instruments not disclosed organic solvents with high boiling point, are not disclosed other surface for printing, with the exception of cardboard.

In U.S. patent No. 5919858 (Loftin) disclosed compositions erasable ink related to water-ink for martirovannoj pens containing water, a colorant and a latex emulsion comprising a copolymer of styrene and butadiene having a styrene content less than about 35%. The dye can be a fluorescent pigment with a particle size less than 3 microns. In U.S. patent No. 5919858 not disclosed to non-aqueous compositions of the present invention.

In U.S. patent No. 5968614 (Ueda et al.) disclosed composition fluorescent ink containing (1) an organic solvent comprising propilenglikolmonostearata ether, (2) fluorescent pigment dissolved in an organic solvent containing propilenglikolmonostearata ether, and (3) ketone polymer. A homogeneous ink composition of the patent (Ueda) is particularly suitable for use in markers that have a reservoir for ink, formed from a bundle of fibers, and the supply of the ink composition from the ink tank is performed using the capillary effect. In U.S. patent No. 5968614 not disclosed the use of fluorescent pigmentation treatment is new, dispersed in the resin, to create the effect of bright colors inside a transparent or translucent ink reservoir of the writing instrument, or the application of heterogeneous ink compositions according to the present invention.

There is a need in the writing instrument with bright ink, which does not require water gel ink, or writing site with free ink, which requires a mechanism for flow control. This invention these drawbacks are eliminated.

Brief description of the invention

The ink of the present invention are compositions bright fluorescent ink, which might be in ordinary writing instrument. In particular, if the writing instrument has a transparent or translucent container (or tank)mounted inside a transparent or translucent housing, the ink composition according to the present invention creates the impression of an unusually brilliant appearance. More specifically, when the ink according to the present invention are writing on paper, then create the same brilliant or vivid image on paper, as in the canister writing instrument containing an ink.

In one embodiment of the invention the composition is non-fluorescent ink for a writing instrument contains free the private pigment, dispersed in the resin, and an organic solvent with high boiling point. Accordingly, the ink composition according to the present invention are heterogeneous, not homogeneous.

Preferably, a contributing tool was a ballpoint pen.

Fluorescent pigment may be used alone or as a mixture of two or more fluorescent pigments. Preferably, the fluorescent pigment is present in the ink composition in an amount of from about 0.1 to about 60 wt.% the ink composition.

The viscosity of the ink compositions according to the present invention is acceptable for writing instruments. Preferably, the viscosity of the ink composition according to the present invention was less than 500000 CPS (at 20°C. a More preferred viscosity of the ink composition according to the present invention is from about 1000 to about 50000 CPS (at 20°C.

Resin in which is dispersed fluorescent pigment may be used alone or as a mixture of resins. Preferably, as a resin used alkyd resin, more preferably used as a resin modified with oil alkyd resin.

The organic solvent may be used alone or as a mixture of two or more organic dissolve the oil. Preferably, the boiling point organic solvent was above 100°C. Examples of solvents include, but without limitation, hydrocarbons, alcohols, polyols, Paleologue esters, ketones, pyrrolidone, lactones and mixtures thereof. It is preferable to choose a hydrocarbon solvent from the group consisting of aliphatic hydrocarbons, naphthenic hydrocarbons and aromatic hydrocarbons or mixtures thereof. Preferably, the organic solvent is present in an amount of from about 5 to about 90 wt.% the ink composition. Most preferably, the organic solvent is present in an amount of from about 20 to about 65 wt.% the ink composition.

In another embodiment of the invention the composition of the fluorescent ink contains a dispersion of a fluorescent pigment in a solvent with a high boiling point and antioxidant. Preferably, the antioxidant is present in an amount of from about 0.1 to about 30 wt.% the ink composition. More preferably, the antioxidant is present in an amount of from about 0.1 to about 10 wt.% the ink composition. It is preferable to choose the antioxidant from the group consisting of tocopherol, butylated of hydroxytoluene, eugenol and hydroquinone.

In yet another embodiment of the invention the composition is fluorescently ink contains a dispersion of a fluorescent pigment in a nonaqueous solvent with a high boiling point and a second resin. The second resin may be used alone or as a mixture of two or more resins. It is preferable that the second resin is present in an amount of from about 0.1 to about 50 wt.% the ink composition. More preferably, the second resin is present in an amount of from about 1 to about 20 wt.% the ink composition.

It is preferable to choose the second resin from the group consisting of polyesters, polystyrene, high impact polystyrene, copolymers of styrene, copolymers of Acrylonitrile and butadiene, polyisobutylene, polyvinyl chloride, polyvinylidenechloride, polyvinylacetate, polyacrylonitrile, polyacrylates, polymethacrylates, polymetylmetacrylate, polybutadiene, ethylene vinyl acetate, polyamides, polyimides, Polyoxymethylene, polysulfones, polyster, polyvinyl ethers, melamine, vinyl ethers, epoxy resins, polycarbonates, polyurethanes, polyethersulfones, Polyacetals, phenol-aldehyde resins, politicalpunch, polyether, polyethylene terephthalate, polytrimethylene, polybutylene terephthalate, polyarylate, polyarilensulphone, polyketones, polyethylene, high density polyethylene, polypropylene, etherification rosin, hydrocarbon polymers and copolymers, graft copolymers, their compositions, and mixtures thereof.

In yet another embodiment, the wasp is estline of the present invention the composition of the fluorescent ink contains a pigment dispersion in a solvent with a high boiling point and a stabilizer. The stabilizer may be used alone or as a mixture of two or more stabilizers. Preferably, the stabilizer was hydroquinone. Preferably, the stabilizer is present in the ink composition in an amount of from about 0.1 to about 30 wt.% the ink composition. More preferably, the stabilizer is present in an amount of from about 0.1 to about 10 wt.% the ink composition.

In yet another embodiment of the invention the composition of the fluorescent ink contains a dispersion of a fluorescent pigment in a solvent with a high boiling point and a plasticizer. The plasticizer may be used alone or as a mixture of two or more plasticizers. Preferably, the plasticizer was 2,2,4-trimethyl-1,3-pentanediol diisobutyrate. Preferably, the plasticizer is present in an amount of from about 0.1 to about 40 wt.% the ink composition, more preferably from about 1 to about 20 wt.% and most preferably from about 2 to about 15 wt.%.

The ink composition according to the present invention may further comprise lubricants, metal decontamination officers, chelating agents, dispersing agents and substances that prevent the formation of surface film, separately or in mixture. Preferably, the substance that prevents about adowanie surface film, present in an amount of from about 0.1 to about 2 wt.% the ink composition. A substance which prevents the formation of a surface film may be used alone or as a mixture of two or more substances that prevent the formation of surface film. Preferably, a substance that prevents the formation of a surface film, was the oxime. Most preferably, the substance that prevents the formation of a surface film, was methylethylketoxime. The lubricating material may be used alone or as a mixture of two or more lubricants. It is preferable to choose the lubricant from the group consisting of esters, alcohols, amides, PoE-oil, fatty acids, fatty alcohols, silicones, liquid polyolefins and metal salts of fatty acids. Most preferably, the lubricating material was liquid polyethylene wax. Preferably, the lubricant is present in an amount of from about 0.1 to about 30 wt.% the ink composition. More preferably, the lubricant is present in an amount of from about 1 to about 15 wt.% the ink composition. The total number of such additional components is usually from about 0.1 to about 30 wt.%, and preferably, it ranged from about 0.1 to about 10 wt.%.

<> In yet another embodiment of the present invention, the writing instrument includes a reservoir for ink or cartridge containing the ink according to the present invention. For the manufacture of the ink tank or container you can use any of the following polymeric materials: polyesters, polystyrene, high impact polystyrene, copolymers of styrene and butadiene, impact modified copolymer of styrene and butadiene, copolymers of styrene and Acrylonitrile, copolymers of Acrylonitrile and butadiene, polyisobutylene, vinyl, polyvinyl chloride, grades, polyvinylacetate, polyacrylonitrile, polyacrylates, polymethacrylates, polymetylmetacrylate, polybutadiene, ethylene vinyl acetate, polyamides, for example nylon, polyimides, Polyoxymethylene, polysulfones, polyster, polyvinyl ethers, melamine, vinyl ethers, epoxy resins, polycarbonates, polyurethanes, polyethersulfone, Polyacetals, phenol-aldehyde resins, politicaland, polyethers, polyethylene terephthalate, polytrimethylene, polybutylene terephthalate, polyarylate, Polyarylamide, polyketone, polyethylene, high density polyethylene, polypropylene, fluoropolymers, copolymers, grafted copolymers, their composition or their mixtures. In addition, any ink tank or canister, made of the polymer is in, listed above, can be modified by surface treatment such as fluorination, by oxidation in the corona discharge and the like, to improve ink. Preferably, a reservoir for ink was made from such polymeric materials such as fluorocarbon resin, vinyl, nylon and fluorinated polypropylene.

The present invention provides for the use of multiple colors and shades. In addition, the ink according to the present invention provide a smooth graphic images.

Description of the preferred embodiments

Used in this application, the term “fluorescence” refers to the emission of visible light upon absorption of radiation of daylight.

Used in this application, the term “dispersion of fluorescent pigment” refers to an insoluble fluorescent dye, dispergirovannom in the resin or mixture of resins. The fluorescent dye has the property to fluoresce in the visible region of the spectrum. Because the dye dispersed in the resin, the dispersion of the fluorescent pigment is a heterogeneous composition of ink as opposed to a homogeneous ink composition.

Used in this application, the term “alkyd resin” means a synthetic resin, formed p is the condensation of polyhydric alcohols, such as glycerin, and polybasic acids such as phthalic anhydride. Used in this application, the term “modified oil alkyd resin” means alkyd resin, in which the polybasic acid is partially substituted monobasic acid.

Used in this application, the term “color masses in the volume” means the color that is observed when light is reflected by the ink layer of such thickness that the background is completely hidden.

Used in this application, the term “stabilizer” means an additive to inks designed to prevent discoloration and changes in the viscosity of the ink over time. Examples of stabilizers are derivatives of dihydroxybenzene, hydroxybenzene, such as bottled hydroxytoluene, and hydroquinone.

Used in this application, the term “plasticizer” means an organic additive, which is used to make the ink film more flexible. Examples of plasticizers are nonvolatile organic liquids and low-melting solids, such as esters, phthalates, adipates and sebacates, tricresylphosphate and castor oil.

Used in this application, the term “substance that prevents the formation of a surface film”means a liquid antioxidant used to prevent about what adowanie oxide film on the exposed surface of the ink.

Used in this application, the term “solvent with high boiling point” refers to a solvent with a boiling point above 100°or 212°F. Preferably, the boiling point was from about 200 to 700°C. Preferably, the organic solvent is present in an amount of from about 5 to about 50 wt.% the ink composition. The preferred solvents are the solvents Magiesol (Magie Brothers, Franklin Park, Illinois), such as oil Magiesol 470, oil Magiesol 52, oil Magiesol 62 and the oil Magiesol 60, which are hydrocarbon solvents, obtained from distillation products of crude oil. Oil Magiesol 470 represents the average cleared from the active sulfur distillate with a boiling point in the range from 230 to 280°C. Butter Magiesol 52 is a mixture of medium, purified from active sulfur compounds distillate and technical light oil with a boiling point of from 270 to 310°C. Oil Magiesol 62 and Magiesol 60 represent light oil technical grade with a boiling point of from 300 to 400°C.

The term “about”used in the present application in combination with one or more numbers or number limits, should be understood as referring to all such numbers, including all numbers within the range.

The preferred compositiontarget dispersion of fluorescent pigment in a nonaqueous solvent with a high boiling point. The dispersion of the fluorescent pigment is an insoluble fluorescent dye dispersed in a liquid medium. You can use any resin, it is preferable to use alkyd resin, it is most preferable to use a modified oil alkyd resin. Specialist in the field of technology to which the invention relates, is known for the preparation of a dispersion of a fluorescent pigment. Examples of obtaining a dispersion of fluorescent pigment disclosed in U.S. patent No. 5439971 (Hyche) and in U.S. patent No. 3455856 (Voedisch).

In the present invention can use any dye, fluorescent in daylight. Examples of compounds, fluorescent in daylight, are rhodamine, fluorescent, coumarin, naphthalimide, benzoate and family acridine dyes. Suppliers of fluorescent dyes are Radiant Color Company (San Francisco, California, Day-Glo Color Corp. (Cleveland, Ohio), Sun Chemical Co. (Cincinnati, Ohio), Sinloihi Co. Ltd. (Tokyo, Japan), Swada (London, England), Mikuni Color Works Ltd. (Himeji, Japan), Matsui International Co., Inc. (Japan), Taus Corporation (Japan) and Nippon Keiko Color Company (Japan). Examples of suitable commercially available fluorescent pigments dispersible in the resin, are Lumikol (Nippon Keiko Depending Ltd.), Radiant Color (San Francisco, California), and Sun Chemical (Cincinnati, Ohio)).

Resin can be used for yourself p is for yourself or as a mixture of two or more resins. Resins suitable for use in the present invention as the second resin include, but are not limited to, thermoplastic, thermosetting, additive and condensation polymers. Illustrative examples include, but no limited to, polyesters, polystyrene, high impact polystyrene, copolymers of styrene, copolymers of Acrylonitrile and butadiene, polyisobutylene, polyvinyl chloride, grades, polyvinylacetate, polyacrylonitrile, polyacrylates, polymethacrylates, polymetylmetacrylate, polybutadiene, ethylene vinyl acetate, polyamides, polyimides, Polyoxymethylene, polysulfones, polyster, polyvinyl ethers, melamine, vinyl ethers, epoxy resins, polycarbonates, polyurethanes, polyethersulfone, Polyacetals, phenolic resins, politicaland, polyethers, polyethylene terephthalate, polytrimethylene, polybutylene terephthalate, polyarylate, Polyarylamide, polyethylene, high density polyethylene, polypropylene, polyurethanes, esterified rosin, hydrocarbon polymers, copolymers, grafted copolymers, their composition or their mixtures. Copolymers and blends of these polymers are well known to specialists in the field of technology to which the invention relates, as polymers that can be used as the main chain or instill is imago polymer in the graft copolymers.

Alkyd resins are the preferred resins for use in the dispersions of fluorescent pigment according to the present invention. Examples of alkyd resins suitable for the present invention are alkyd resins from Akzo Nobel (Matteson, Illinois), such as AKA 1317, soya alkyd resin No. 3, AKA 1275, alkyd resin No. 7 of the highest quality on the basis of fluorite, AKA 1235, alkyd resin No. 5 with a large molecular weight, AKA 1163, soya alkyd resin No. 7, AKA 1162, alkyd resin for the decorative metal, AKA 1110, alkyd resin No. 3 of the highest quality on the basis of fluorite, AKA 1109, alkyd resin No. 1 of the highest quality on the basis of fluorite, and AKA 1100, lithographic alkyd resin No. 00. The preferred alkyd resins are alkyd resin modified with oil or fatty acids.

Antioxidants can be used by themselves or as a mixture of two or more antioxidants. Examples of antioxidants include, but are not limited to, (1) related phenols [such as Alvinox 100, the manufacturer 3V Inc. from Charlotte, North Carolina, or BNX 1000, manufacturer Mayzo Inc. from NORCROSS, GA, or bottled hydroxytoluene, manufacturer Eastman Chemical Co., or Vanox SKT, manufacturer Vanderbilt Chemical Co. from Connecticut], (2) alkylidene bis-, Tris -, and polyphenols [such as the number of Sapah (425, 1790, 2246), manufacturer CYTC of Perrysburg, Ohio], (3) thio-bis, Tris and polyallylamine phenols [such as Irganox 1035, manufacturer Ciba Geigy of Basel, Switzerland], (4) amines [such as phenothiazines, manufacturer Zeneca Specialties from England, or the number of Naugard (A, J, Q, SA, 445), manufacturer Uniroyal Chemical Co. from Connecticut], (5) esters [such as the number of Argus (DLTDP, DSTDP, DMTDP, DTDTDP) from Witko Polymer Additives from Greenwich, Connecticut], (6) organic phosphites and phosphates [such as the number Albrite (BTD HP, DBHP, DLHP), manufacturer Albright &Wilson of Richmond, Virginia], (7) propylgallate, manufacturer Eastman Chemical Co. from Tennessee, (8) hydroquinone, manufacturer Monsanto Chemical Co. from St. Louis, Montana, (9) tocopherol, such as vitamin E, and (10) eugenol (clove oil). The preferred antioxidants are vitamin E, sold A.D.M. (traveller, Illinois), bottled hydroxytrol sold by Eastman Chemical (Kingsport, Tennessee), and eugenol sold by Aldrich Chemical Co. (Milwaukee, Wisconsin). Of these the most preferred bottled hydroxytrol. Preferably, the antioxidant is present in the ink composition in an amount of from about 0.1 to about 30 wt.%, most preferably from about 0.1 to about 10 wt.%.

Absorbers of ultraviolet radiation can be used by themselves or as a mixture of two or more absorbers of ultraviolet radiation. Examples of the ultraviolet absorbers of radiation and light is tabilization include, but not limited to, (1) 2-(2'-hydroxyphenyl)-benzotriazole; (2) esters of substituted and unsubstituted benzoic acids, (3) 2-hydroxybenzophenone, (4) acrylates, (5) compounds of Nickel, such as Nickel complexes of 2,2'-THIOBIS-[4-(1,1,3,3-TETRAMETHYLBUTYL)-phenol], dibutyldithiocarbamate Nickel, Nickel salts monoalkyl 4-hydroxy-3,5-di-tert-butylbenzylphthalate, Nickel complexes of ketoximes or Nickel complexes of 1-phenyl-4-lauryl-5-hydroxypyrazol, (6) spatial related amines, such as sebacate bis-(2,2,6,6-tetramethylpiperidine), sebacate bis-(1,2,2,6,6-pentamethylpiperidine) and bis-(1,2,2,6,6-pentamethylpiperidin) n-butyl-3,5-di-tert-butyl-4-hydroxybenzylidene; (7) oxamide and (8) 2-(2 hydroxyphenyl)-1,3,5-triazine.

Plasticizers can be used by themselves or as a mixture of two or more plasticizers. Examples of plasticizers for use in this invention include, but are not limited to, derivatives of abietic acid, acetic acid, adipic acid, azelaic acid, benzoic acid, butene, polyphenol, citric acid, apossibility, fumaric acid, glutaric acid, glyceric acid, glycol, linear dibasic acid, oil, butyric acid, isophthalic acid, lactam, maleic acid, myristic acid, nitrile, oleic to the slots, palmitic acid, paraffin, pelargoniums acid, pentaerythritol, peroxyoctanoic acid, phosphoric acid, a complex of the polyester, ricinoleic acid, sabatinovka acid, stearic acid, styrene, sucrose, sulfonic acid, tall oil and trimellitates acid. The preferred plasticizer is 2,2,4-trimethyl-1,3-pentadione diisobutyrate (TPD)sold by Eastman Chemical Co. (Kingsport, Tennessee). Preferably, the plasticizer is present in the ink composition in an amount of from about 0.1 to about 40 wt.%, more preferably from about 1 to about 20 wt.%, most preferably from about 2 to about 15 wt.%.

Substances that prevent the formation of surface film, can be used by themselves or as a mixture of two or more substances that prevent the formation of surface film. An example of a substance that prevents the formation of a surface film, but without limiting it, is oxynoe a family of organic compounds. It is preferable to use as substances that prevent the formation of surface film, methylethylketoxime sold DMG Americas (Westlake, Ohio). Preferably, the substance that prevents the formation of a surface film, was present in the ink composition in an amount of from about 0.1 to about 2 wt.%.

Lubricants can be used by themselves or as a mixture of two or more lubricants. Examples of lubricants include, but are not limited to, (1) esters of alcohols [trade name flexican R-1, R-4, R-6; manufacturer CasChem from Newark, new Jersey], (2) amides [trade name Crodamide EBS, EB, ER; manufacturer Croda Universal Ins from Arlington, Texas], (3) Paleologue esters [for example, supplied by Lonza of fire lawn, new Jersey, under the trade name Glycolube P], (4) fatty acids [for example, supplied by Croda under the trade name Croacid], (5) fatty alcohols [e.g., supplied by Petrolite Company of Oklahoma under the trade name Unilin 350, 425, 550], (6) silicones [e.g., supplied by Dow Corning of Midland, Michigan, under the trade name of a liquid 200, 203, MW-001], (7) liquid polyolefins [e.g. VERSAFLOW, manufacturer Shamrock Chemical Co. from Newark, new Jersey] and (8) metal salts of fatty acids such as zinc stearate, manufacturer Witco Corp. from Greenwich, Connecticut. It is preferable to use as a lubricant liquid polyethylene wax (Versaflow), which is available from Shamrock Chemicals Co. (Newark, New Jersey]. Preferably, the lubricant is present in the ink composition in an amount of from about 0.1 to about 30 wt.%. More preferably, the lubricant is present in the composition h is rnil in the amount of from about 1 to about 15 wt.%.

The decontamination officers of metal may be used by themselves or as a mixture of two or more metal decontamination officers. Examples of decontamination officers of the metal include, but are not limited to, N,N'-diphenyloxide, N-salicylal-N'-salicyloylhydrazine, N,N'-bis-(salicyloyl)hydrazine, N,N'-bis-(3,5-di-tert-butyl-4-hydroxyphenylpropionic)hydrazine, 3-salicylamide-1,2,4-triazole, dihydrazide bis-(benzylidene) oxalic acid, trade name Citrosol 50W, 50T, 50 PPM, the manufacturer Pfizer Chemical Co. from new haven, Connecticut; Cheelox-ethylenediaminetetraacetic acid HE-24, NTA-14, the manufacturer GAF Corporation of new Jersey, and Chel DM-41, DPTA, Irganox 1024, manufacturer Ciba Geigy of Basel, Switzerland.

The dispersant can be used by themselves or as a mixture of two or more dispersing agents. Dispersing agents can be anionic, nonionic or amphoteric. Suitable for use anionic dispersing agents include, for example, sulfonated fatty acid ester, such as sulfosuccinate dictinary, sulfate of higher alcohol sulfate polyoxyethyleneglycol ether, alkylarylsulfonate or olefin sulfonate. Non-ionic dispersing agents applicable in the present invention include, for example, the connection polyoxyethylene ether, such as polyoxyethyleneglycol ether or polyoxyethyleneglycol ether, ester of fatty acid is a polyhydric alcohol or vodorazdelny polyoxyethylene ester of a fatty acid and a polyhydric alcohol. The ink composition may contain a dispersing agent in an amount of not more than about 10 wt.%, preferably in the range from about 0.1 to about 5 wt.% relative to the ink composition.

Additional components that can be entered in the ink composition include fillers, stabilizers against the action of ultraviolet radiation, surfactants, afluorescent dyes, optical brighteners and stabilizers. The total number of such additional components is usually from about 0.1 to about 30 wt.%, and preferably, it ranged from about 1 to about 15 wt.%.

In another embodiment of the present invention, the writing instrument includes a reservoir or container for the ink containing the ink according to the present invention. For the manufacture of a tank or reservoir for ink, you can use any of the following polymeric materials: polyesters, polystyrene, high impact polystyrene, copolymers of styrene and butadiene, impact modified copolymer of styrene and butadiene, copolymers of styrene and Acrylonitrile, copolymers of Acrylonitrile and butadiene, polyisobutylene, vinyl, polyvinyl chloride, grades, polyvinylacetate, polyacrylonitrile, polyacrylates, polymethacrylates, polymetylmetacrylate, polybut the yen, the ethylene vinyl acetate, polyamides, such as nylon, polyimides, Polyoxymethylene, polysulfones, polyster, polyvinyl ethers, melamine, vinyl ethers, epoxy resins, polycarbonates, polyurethanes, polyethersulfone, Polyacetals, phenol-aldehyde resins, politicaland, polyethers, polyethylene terephthalate, polytrimethylene, polybutylene terephthalate, polyarylate, Polyarylamide, polyketone, polyethylene, high density polyethylene, polypropylene, fluoropolymers, copolymers, grafted copolymers, their composition or their mixtures. In addition, to improve ink, any tank or container for ink, made from the polymers listed above, can also be subjected to surface treatment such as fluorination or oxidation under the action of the corona discharge and the like, it is Preferable that the ink tank was made of a polymeric material, such as fluorocarbon resin, vinyl, nylon and fluorinated polypropylene. Most preferably, the polymeric material was a polymer such as fluorinated ethylene propylene from Dupont.

Examples

Example 1

Dispersion of alkyd resin/fluorescent pigment

As shown in table 1, the following compounds are examples of ink, made from alkyd dispersions of fluorescent pigments with what ispolzovaniem Magiesol 52 to reduce the viscosity. The viscosity of the ink disclosed in table 1, are in the range from about 5000 to about 7000 SP.

Example 2

Dispersion of fluorescent pigments with Magiesol 52, stabilized with hydroquinone

As shown in table 2, the following inks are an example of the use of a solvent with a high boiling point (Magiesol 52) to reduce the viscosity of the fluorescent pigment, in addition, added stabilizer (hydroquinone) to increase the allowable storage period. Organic solvent, Magiesol 52, with a high boiling point from Magie Brothers is added gradually until the viscosity of the ink composition becomes 7100 SP.

Table 2
Components 
Sunbrite Strong Magenta B51-UK 55*55,45 mass parts
Magiesol 52or 10.60
Hydroquinone0,57
* Dispersion of fluorescent pigment available from Sun Chemical

Example 3

Dispersion of fluorescent pigments with TPD (2,2,4-trimethyl-1,3-pentanediol diisobutyrate), stable butilirovannyh hydroxytoluene

As shown in table 3, the following composition is an example of using plastificator is a, TPD (2,2,4-trimethyl-1,3-pentanediol diisobutyrate), to reduce the viscosity of the pigment dispersion associated with the stabilizer and antioxidant, butilirovannyh hydroxytoluene. Plasticizer, TPD (2,2,4-trimethyl-1,3-pentanediol diisobutyrate), is added gradually to the final viscosity 27000 SP.

Table 3
Components (all parts by weight) 
Day-Glo SFB 802 (green)53,09 mass parts
TPD*9,71 mass part
OSH**0,56 mass parts
* TPD=2,2,4-trimethyl-1,3-pentanediol diisobutyrate

** OSH= - bottled hydroxytrol

All patents cited in the preceding text, in its entirety intentionally incorporated into the present application by reference.

It should be clear that the claims refers to cover all changes and modifications of the preferred embodiments of the invention selected for this application for the purpose of illustration which do not constitute departure from the essence and scope of the invention.

1. The heterogeneous composition of indelible ink for a writing instrument containing a fluorescent pigment, disperse is consistent in the resin, and an organic solvent with high boiling point, where the ink composition has a viscosity, acceptable to the writing instrument, the ink composition creates a vivid visual impression on paper and inside the element writing instrument containing an ink.

2. The composition according to claim 1, in which the viscosity is less than 500000 CPS (at 20°C.

3. The composition according to claim 2, where the ink composition has a viscosity of from about 1000 to about 50000 CPS (at 20°C.

4. The heterogeneous composition of indelible ink for a writing instrument containing a fluorescent pigment dispersed in the resin, and an organic solvent with high boiling point, where the ink composition has a viscosity, acceptable to the writing instrument.

5. The composition according to claim 1, in which the resin used alkyd resin.

6. The composition according to claim 5, in which the alkyd resins used a modified oil alkyd resin.

7. The composition according to claim 1, additionally containing a second resin.

8. The composition according to claim 7, in which the second resin is present in an amount of about 0.1 to 50 wt.% the ink composition.

9. The composition of claim 8 in which the second resin is present in an amount of about 1-20 wt.% the ink composition.

10. The composition according to claim 7, in which the second resin is selected from the group consisting of polyesters, polystyrene, on the of ostirala, copolymers of styrene, copolymers of Acrylonitrile and butadiene, polyisobutylene, polyvinyl chloride, polyvinylidenechloride, polyvinylacetate, polyacrylonitrile, polyacrylates, polymethacrylates, polymetylmetacrylate, polybutadiene, ethylene vinyl acetate, polyamides, polyimides, Polyoxymethylene, polysulfones, polyster, polyvinyl ethers, melamine, vinyl ethers, epoxy resins, polycarbonates, polyurethanes, polyethersulfones, Polyacetals, phenol-aldehyde resins, politicalpunch, polyether, polyethylene terephthalate, polytrimethylene, polybutylene terephthalate, polyarylate, polyarilensulphone, polyketones, polyethylene, high density polyethylene, polypropylene, esterified rosin, hydrocarbon resins and copolymers, graft copolymers, their compositions and their the mixtures.

11. The composition according to claim 1, in which the organic solvent has a boiling point above 100°C.

12. The composition according to claim 11, in which the organic solvent is selected from the group consisting of hydrocarbons, alcohols, polyols, polianovich esters, ketones, pyrrolidones, lactones and mixtures thereof.

13. The composition according to item 12, in which the hydrocarbon solvent is selected from the group consisting of aliphatic hydrocarbons, naphthenic hydrocarbons, aromatic hydrocarbons and their mixture is th.

14. The composition according to claim 1, in which the organic solvent is about 5-90 wt.% the ink composition.

15. The composition according to 14, in which the organic solvent is about 20-65 wt.% the ink composition.

16. The composition according to claim 1, additionally containing a stabilizer.

17. The composition according to item 16, in which the stabilizer is present in an amount of about 0.1 to 30 wt.% the ink composition.

18. The composition according to 17, in which the stabilizer is present in an amount of about 0.1 to 10 wt.% the ink composition.

19. The composition according to claim 1, additionally containing antioxidant.

20. The composition according to claim 19, in which the antioxidant is selected from the group consisting of tocopherol, butylated of hydroxytoluene, eugenol and hydroquinone.

21. The composition according to claim 19, in which the antioxidant is present in amount of about 0.1-30 wt.% the ink composition.

22. The composition according to claim 1, additionally containing a plasticizer.

23. The composition according to item 22, in which the plasticizer used 2,2,4-trimethyl-1,3-pentanediol diisobutyrate.

24. The composition according to item 22, in which the plasticizer is present in an amount of from about 0.1 to about 40 wt.% the ink composition.

25. The composition according to paragraph 24, in which the plasticizer is present in an amount of about 1-20 wt.% the ink composition.

26. The composition according A.25, in which the plasticizer is present in an amount of OK is lo 2-15 wt.% the ink composition.

27. The composition according to claim 1, additionally containing a substance which prevents the formation of a surface film.

28. The composition according to item 27, which as substances that prevent the formation of surface film, used the oxime.

29. The composition according to item 27, which as substances that prevent the formation of surface film, used methylethylketoxime.

30. The composition according to item 27, in which the substance that prevents the formation of a surface film, is present in an amount of about 0.1 to 2 wt.% the ink composition.

31. The composition according to claim 1, additionally containing a lubricant.

32. The composition according to p, in which the lubricant is selected from the group consisting of esters, alcohols, amides, polianovich esters, fatty acids, fatty alcohols, silicones, liquid polyolefins and metal salts of fatty acids.

33. The composition according to p, in which the lubricant used liquid polyethylene wax.

34. The composition according to p, in which the lubricant is present in an amount of about 0.1 to 30 wt.% the ink composition.

35. The composition according to clause 34, in which the lubricant is present in an amount of about 1-15 wt.% the ink composition.

36. The composition according to claim 1, in which the fluorescent pigment is present in the ink composition in an amount of about 0.1 to 60 wt.% the ink composition.

37. Writing instrument containing an ink tank accommodating heterogeneous composition of the non-fluorescent ink for a writing instrument comprising a fluorescent pigment dispersed in the resin, and an organic solvent with high boiling point.

38. Writing instrument according to clause 37, in which the ink tank is made of a polymeric material selected from the group consisting of polyesters, polystyrene, high impact polystyrene, copolymers of styrene and butadiene, impact modified copolymer of styrene and butadiene, copolymers of styrene and Acrylonitrile, copolymers of Acrylonitrile and butadiene, polyisobutylene, vinyl, polyvinyl chloride, polyvinylidenechloride, polyvinylacetate, polyacrylonitrile, polyacrylates, polymethacrylates, polymetylmetacrylate, polybutadiene, ethylene vinyl acetate, polyamides, polyimides, Polyoxymethylene, polysulfones, polyster, polyvinyl ethers, melamine, vinyl ethers, epoxy resins, polycarbonates, polyurethanes, polyethersulfones, Polyacetals, phenol-aldehyde resins, politicalpunch, polyether, polyethylene terephthalate, polytrimethylene, polybutylene terephthalate, polyarylate, polyarilensulphone, polyketones, polyethylene, high density polyethylene, dress and cover is on, of polymer and copolymers, graft copolymers, their compositions, and mixtures thereof.

39. Tool § 38, in which the polymeric material is modified by the surface treatment with the use of fluoridation or oxidation in the corona discharge.

40. The tool according to clause 37, in which the ink tank is made of a polymeric material selected from the group consisting of fluoropolymers, vinyl, nylon and fluorinated polypropylene.

41. The tool according to clause 37, where the writing instrument is designed for use on surfaces that absorb ink.

42. The tool according to clause 37, where the writing instrument is a pen.



 

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