Composition for printing inks for inkjet printers
(57) Abstract:The invention relates to the printing industry, namely the production of printing inks for inkjet printers. Describes a composition for printing inks for inkjet printers, including dye, glycerin and water; contains as a dye aniline black, as water - distilled water, and optionally heteropolyanions and at least two surfactants selected from the group comprising alkyl sulphates, OP-20-based oxyalkylated ALKYLPHENOLS and Serax-40 (Stearic-40) based on ethoxylated fatty acids and products of oksietilirovannye tall oil, taken in equal quantities, in the following ratio, wt.%: dye aniline black 2-16, glycerin 26-34, heteropolyanions 0,05-1, at least two surfactants, taken in equal quantities 2-4, the rest distilled water. Designed composition for printing inks for inkjet printers, which will ensure high quality printing, water resistance, light resistance, which increases the storage stability of the printed piny shelf life with the preservation of its performance. 2 C.p. f-crystals, 1 tab., 1 Il. The invention relates to the printing industry, namely the production of printing inks for inkjet printers.Known water-based ink composition for recording (Japan Patent 6043569, 09 D 11/16, 16.03.89 g) containing a water-soluble dye, 3-10% glycerol, 5-30% of diethyleneoxide and propylene oxide.The disadvantage of this paint is its low resistance and print quality, and it is lightfast and water-resistant.The closest in technical essence is known composition of the ink for inkjet printers (U.S. Patent 5421871, 09 D 11/02, 06.06.92, containing >0.01% of a black dye, 1-10% glycerol, 1-10% With 1-4-monohydroxy alcohol, 0.5 to 10% 1,3-dimethyl-2-imidazolidinone and 75-90% water.The disadvantage of this printing ink is its instability at low temperatures, under the influence of which it loses its original quality. Printed this paint is not enough water-resistant and lightfast.The problem to which this invention is directed is the development of such a composition for printing inks for inkjet printers, which will ensure high quality printing, the resistance, the th composition resistant to -22oWith, has a long shelf life and significantly lower cost compared to imported inks.This technical result is achieved in that the composition for printing inks for inkjet printers, including dye, glycerin and water, contains as a dye Aniline black, as water - distilled water, and optionally heteropolyanions and at least two surfactants selected from the group comprising alkyl sulphates: OP-20-based oxyalkylated ALKYLPHENOLS and Serax-40 (Stearic -40") based on ethoxylated fatty acids and products of acetyltyrosine tall oil, taken in equal quantities in the following ratio of components, wt.%:
Dye Aniline black - 2-16
Glycerin - 26-34
Heteropolyanions - 0,05-1
At least two surfactants, taken in equal quantities - 2-4
Distilled water - Rest
In addition, the composition for printing inks for inkjet printers to enhance color may contain additional indicator of Crystal violet in the amount 0,00 Adelaide fact, when its content is less than 2 wt. % deteriorates the sharpness of the print, and its content more than 16 wt.% leads to lower aggregate stability of the paint.The optimum content of heteropolysaccharide that improves the light fastness of the print is determined by the fact that the effect of light printing does not occur when the content is less than 0.05 wt.%, and when its content is more than 1 wt.% leads to agglomeration of the particles of printing ink.At the same time as heteropolysaccharide can be used with the same technical result of heteroalicyclic, for example, 12-molybdophosphoric acid (heteroalicyclic brand X. H.), 12 molybde-2-windowsphone acid, 6-molybde-4-tungsten-2-windowsphone acid, and salts of heteropolyacids, such as 6-molybdopterin ammonium 6-wolframtones potassium, 12-molybdopterin sodium.The purpose of glycerol in the composition is the validation of printing ink hardiness to -22oC. glycerin Content of 34 wt.% increases the viscosity of printing ink, which, in particular, hinders the operation of the inkjet cartridge.The content in the composition of surface-active substances (surfactants) less than 2 wt. % leads to aggregate Neue is giving not less than 4 to 106Ohms, which is very important when using printing inks in inkjet printers. For the latter reason, in the production of printing inks for inkjet printers use distilled water. To the invention, the tested surfactants, such as alkylsulfate, (namely vitaminswhat - (C5H11O)2SO2or alkylene acid or its sodium salt), OP-20-based oxyalkylated ALKYLPHENOLS (Handbook "Surfactants", L. : Chemistry, 1979, S. 305.), "Steelox-40" based on ethoxylated fatty acids and products of oksietilirovannye tall oil (CH3(CH2)16COOH) - (Handbook Ed. by A. A. Abramson, E. D. Shchukin. Surface phenomena and surfactants. L.: Chemistry, 1984, S. 286, 313.; The journal "Advances in chemistry", 11, 1965, 34 so.) According to the authors of the present invention, the above-mentioned surfactants in the proposed composition function as film-forming agents, dispersing agents, stabilizers, which, of course, contributes to the improvement and preservation for a longer period (up to 3 years) performance of the printed ink.The drawing shows the transmission spectra of the proposed composition 1 and prototype 2. The character of KRI the tx2">The invention is carried out as follows.To obtain a printing ink on the proposed composition of the compositions indicated in the table, used the following components: basic dye - Aniline black THE 6-15-752-78; heteroalicyclic brand X. H.; glycerin GOST 6259-52 brand X. H. ; surfactant-vitaminswhat (C5H11O)2SO2) OP-20 GOST 8433-57 or Stearic-40" (CH3(CH2)16COOH); 0.1% solution of Crystal violet indicator MRTU 6-09-5924-69 H. D. A.; Bromophenol blue TU 6-09-311-70 H. H.In a reactor equipped with a stirrer, heat water to a temperature of 60oWith, dissolve the basic dye - Aniline black, bring to a slow boil and boil until complete dissolution of the basic dye. Cool the solution to 50oC. Then injected glycerin, surfactant, 0.1% solution of Crystal violet indicator or Bromophenol blue, heteroalicyclic. After the addition of each component to produce a thorough mixing. The use of other alkyl sulphates, heteropolyacids and their sodium salts leads to the same technical result.Data characterizing the quality of the printed colors shown in the table.) - Rev. tests showed what printing ink 4 times withstand freezing and thawing without loss of original properties, which makes the paint off-season a product compared to the prototype. The increase of storage period of more than 3 times is of crucial importance for the full realization of the printing ink. Lightfastness (see drawing) and the resistance according to GOST 26-160-84 (see table) print enable to increase the stability of operation and storage of printed products in comparison with the prototype. 1. Composition for printing inks for inkjet printers containing the dye, glycerine, and water, characterized in that as a dye it contains aniline black, as water - distilled water, and optionally also heteropolyanions as an agent that improves the light fastness of printing, and at least two surfactants selected from the group comprising alkyl sulphates, OP-20 and Stearic-40, taken in equal quantities, in the following ratio, wt. %:
Dye aniline black - 2 - 16
Glycerin - 26 - 34
Heteropolyanions - 0,05 - 1
At least two surfactants, taken in equal quantities - 2 - 4
3. The composition according to p. 1, characterized in that it additionally contains bromophenol blue in the amount of 0.003 to 0.005 wt. %.
FIELD: printing inks.
SUBSTANCE: invention relates to materials generating charge, in particular to printing inks and toners for protective marking and applying protective markers in order to reveal falsifications and counterfeits. Use of counterfeit protection technology is described involving printing ink composition containing charge-generation substance and a medium, wherein charge-generation substance has maximum absorption in near IR region within a range of 700-1500 nm and in visible region within a range of 400-700 nm, this substance being compound selected from a type of polymorphous modification of X form of metal-free phthalocyanine, type of polymorphous modification of Y form and phase I and II forms of titanyloxyphthalocyanine, polymorphous modification of phase II form of vanadyloxyphthalocyanine, and polymorphous modification of phase V form of hydroxygalliumphthalocyanine and methoxygalliumphthalocyanine. Printing ink composition is applied onto an article or substrate using known printing procedure. Methods of establishing authenticity of an article or substrate are also described, which consist in determining characteristic absorption of marker in near IR region.
EFFECT: enabled effective protection of articles or substrates when using printing inks containing, for example, blue or green dyes, whose absorption bands can be shifted to infrared region and partially mask absorption properties of marker.
20 cl, 4 tbl, 6 ex
FIELD: printing technique.
SUBSTANCE: set and method of printing can be used for printing light-absorbing signs of protection of printed items. Set of printing ink for printing of light-absorbing signs has at least two dyes. Any dye has at least one dyeing matter, pigment of dye which absorbs visible light. Set of printing inks has first and second groups of dyes. Dyes from first group additionally have mark with preset spectral absorption characteristic, preferably with characteristic relating to absorption. Mark has absorption maximum within wavelength range of 700-900 nm, preferably, 780 nm, and the mark practically doesn't absorb light within visible spectrum of absorption. Dyes of second group has dyeing matter, dye or pigment, which absorbs light within visible light spectrum and they have the same maximum of absorption within IR-red spectrum at wavelength around 700 nm as spectral characteristic within IR-red range of mark, Method of printing signs, printed item and set of dyes, including four-color set of printing inks and IR-mark, are described.
EFFECT: reliability of identification of authenticity of item independently on color of signs.
15 cl, 5 dwg, 2 app
FIELD: printing dyes.
SUBSTANCE: invention relates to concentrate of printing dyes and a method for its preparing. Invention describes dye concentrate for offset printing in form non-sticky granules covered by envelope and/or non-sticky granules without envelope with the pigment content in its 45-65 wt.-%. Envelope-cover consists of powder-like solid materials, wax or liquid materials, for example, oil. Also, invention describes a method for preparing indicated concentrate that involves grinding dye concentrate for offset printing and its covering by envelope wherein covering by envelope is carried out by direct applying powder-like solid material on the printing dye concentrate and wherein powder-like solid materials are combined firstly with liquid carrier followed by its evaporation, or solid envelope is prepared by applying melted material useful for coating. Invention provides decreasing viscosity and stickiness of the printing dye concentrate and allows simple transporting and simple mixing with additional components.
EFFECT: improved and valuable properties of concentrate.
9 cl, 12 ex
FIELD: chemical industry; methods of production of the coatings with the strong adhesion.
SUBSTANCE: the invention is pertaining to the method of production of the coatings with the strong adhesion on the inorganic or organic substrate, which provides, that one inorganic or organic substrate is subjected to the treatment with the low-temperature plasma, the corona discharge or the treatment with the gaseous flame, at the normal atmospheric pressure deposit on the inorganic or organic substrate one or several photoinitiating agents or the mixtures of the at least one ethylene- unsaturated with the monomers and-or the oligomers containing at least one ethylene- unsaturated group, or the solutions, suspensions or emulsions of the above indicated substances using the suitable methods; the above indicated substances are not necessary subjected to drying and-or to the electromagnetic irradiation; and either on the preliminary so treated substrate deposit the composition including at least one ethylene- unsaturated monomer or the oligomer and the coating is subjected to hardening under action of the UF/ the visual rays emission or the electron beam; or on the substrate with such a preliminary coating made out of the photoinitiating agent they apply the printing ink coating and dry it. The method has the high efficiency and allows to produce the coating with the good adhesion and is suitable for to production of the products made out of the various plastics materials and-or metals or the glass types with the coatings having the good adhesion.
EFFECT: the invention ensures the high efficiency of the method, production of the highly adhesive coatings suitable for manufacture of the products made out of the various plastics materials, metals or the glass types.
18 cl, 19 ex
FIELD: polymer production.
SUBSTANCE: invention relates to production of polymeric binders for toner and can be used for copying appliances and printers. Process comprises separate preparation via emulsion polymerization of (i) low-molecule weight copolymer of styrene (α-methylstyrene), 2-ethylhexyl acrylate (or butyl acrylate) and methacrylic acid at monomer weight ratio (88-91.5):(8-11):(0.5-1.0) with intrinsic viscosity in toluene 0.08-1.2 dL/g and (ii) high-molecule weight copolymer of styrene (α-methylstyrene) and 2-ethylhexyl acrylate (or butyl acrylate) at monomer weight ratio (88-92):(8-12) with intrinsic viscosity in toluene 1.0-1.28 dL/g. In both cases, polymerization is carried out at 60-70% to monomer conversion close to 100%. Resulting latexes of low- and high-molecule weight copolymers are supplemented by stopper and antioxidant and then mixed with each other at "dry" weight ratio between 70:30 and 75:25 and coagulated intrinsic viscosity in toluene 1.0-1.28 dL/g. with electrolyte solutions to form polymer characterized by intrinsic viscosity in toluene 0.4-0.45 dL/g and polydispersity Mw/Mn, which ensures bimodal molecular weight distribution of copolymer. The latter has melting (spreading) point 125-137°C and softening temperature 70-75°C.
EFFECT: improved quality of electrographic printing.
2 cl, 1 tbl, 4 ex
FIELD: marking and identification of protected articles, such as bank-notes, service papers, labels, foil, fiber, card or industrial products.
SUBSTANCE: proposed printing ink contains dyes or pigments of expanded or hyperchromatic color space which is not reproduced by means of standard 4-color reproducing equipment. Identification of marking includes mathematical conversion of non-processed spectral information into statically independent hyperchromatic coordinates and comparison of selected hyperchromatic coordinates with respective standard magnitudes. Specification gives also description of printing inks and method of marking and identification of articles.
EFFECT: enhanced efficiency.
25 cl, 6 dwg, 2 tbl, 4 ex
FIELD: chemical industry; printing industry; other industries; methods of production of the composition of the paint including the optically changeable pigments.
SUBSTANCE: the invention may be used in production of the optically changeable pigments. The optically changeable pigment includes the stratified set composed of the different materials, in which, at least, one of the layers represents the reflecting layer and, at least, one of the other layers represents the dielectric layer. At least, one of the surfaces of the indicated layers is subjected to the chemical action. The indicated materials also include, at least, one of the layers, which represents the semitransparent metallic layer made out of chromium and also one or more metals and-or their inorganic compounds. At that the metal and-or its inorganic compound are subject to corrosion. The subjected to the chemical action surface of the reflecting and dielectric layer along the edge of the layering block of the edge structure of the pigment is coated with the passivating agent, which is selected from the group consisting of the organic esters and the fluorinated organic esters of the phosphoric acid, having the following structural formula: (Rf-CH2-CH2-O)xP(O)(OH)y, where Rf=F-(CF2-CF2)z, х=1 or 2, у=2 or 1, х+у=3, z=l-7. The composition of the printing paint includes the binding system, water and the optically changeable pigment. The invention allows to diminish oxidation of the metallic layers and dissolution of the dielectric layers of the optically changeable pigment and to use it in the compositions of the printing paint.
EFFECT: the invention allows to diminish oxidation of the metallic layers and dissolution of the dielectric layers of the optically changeable pigment and to use it in the compositions of the printing paint.
22 cl, 7 ex
FIELD: chemical industry; printing industry; powder metallurgy industry; cosmetic industry; other industries; production and application of the highly anticorrosive metallic pigments.
SUBSTANCE: the invention is pertaining to production of the of the highly anticorrosive metallic pigments similar to laminas, which may be used in production of the printing ink, plastic materials, cosmetics, the powder coatings and in other branches of industry. The pigments have on their surfaces: the metallic substrates similar to the laminas and treated with the compounds of the phosphoric acid and-or the compounds of the boric acid; one or more layers of the coatings consisting of one or more hydrated oxides of the metals of one or more metals selected from the group, which includes silicon, aluminum, zirconium, titanium and tin. On the basis of the highly corrosive metallic pigments similar to laminas it is possible to produce the interferential colored pigments. The invention allows to increase the anticorrosive resistance of the metallic pigments at the expense of saving without the faults of the initial surface smoothness of the similar to the laminas metallic substrates, to increase the homogeneity and density of the layers of the hydrated oxides of the metals.
EFFECT: the invention ensures the increased anticorrosive resistance of the metallic pigments, saving the initial surface smoothness of the similar to the laminas metallic substrates, the increased homogeneity and density of the layers of the hydrated metals oxides.
40 cl, 9 ex, 4 tbl, 8 dwg
FIELD: print engineering.
SUBSTANCE: invention provides ink containing first fluorescent color material emitting fluorescence at specified emission wavelength used for measurement or determination of excitement at specified excitement wavelength; and second fluorescent color material emitting fluorescence when excited at specified excitement wavelength, said second color material being contained in larger amount than said first color material. To obtain fluorescence at desired emission wavelength, excitement spectrum of the first color material in ink should have peak wavelength range adjoining specified fluorescent wavelength, and emission fluorescence spectrum of the second color material has emission wavelength range that includes at least above-mentioned peak wavelength range.
EFFECT: enhanced fluorescence intensity due to presence of several fluorescent coloring substances.
9 cl, 26 dwg, 3 tbl, 6 ex
FIELD: printing technology.
SUBSTANCE: paint for ink-jet printing contains synthetic food colourant, glycerin and sodium dodecylbenzenesulfonate as surface active substance, sorbit acid as preservation agent, liquid ammonia, isopropyl alcohol and distilled water. Environmentally clear, affordable and cheap components are used as painting ingredients.
EFFECT: four-colour printing with fast paint setting on paper; compatibility with any printing units and prevention of contacting printing units damage.
1 tbl, 3 ex