Printing ink uv curing
(57) Abstract:Usage: mainly for printing by screen method on paper, cardboard,plastic and metal films and products, glass and other materials. The inventive printing ink UV curing contains (mass. (wt.%) 1-15 pigment, 35-55 oligoadenylate, for example, industrial brands TGM-3, MGF-9, MDF-2 and/or triacrylate pentaerythritol, 20-35 acelerando epoxygenase resin with a molecular mass of 550-600, 3-6 photoinitiator, 0.01 to 0.1 coinitiator (benzoyl peroxide and/or dinitrile azabicycloalkanes acid), and 1-2,5 thixotropic agent (Aerosil), 0.5 to 1.0 defoamer (polydimethylsiloxane liquid and inert inorganic drive the rest. 1 C.p. f-crystals, 2 tab. The invention relates to printing inks, in particular printing inks for the application of the desired picture or text method setdataframe printing and subsequent fixing of the seal by photopolymerization binding upon irradiation with UV light. We offer paint allows you to get one - and multi-color text, graphics and barcode images on flat surfaces of various materials: paper and cardboard, glass, metal and polymer films to show, including pigment, oligopyrroles, trichlorodiphenyl and epoxy Dianova resin molecular weight 400-500, modified by diphenylethanol role of photoinitiator liquid binder, in the following ratio, wt. Pigment 12-35 Oligopyrroles the 45-70 Trichlorodiphenyl 5-15
modified by diphenylethanol 5-20
However, the paint on its rheological properties, primarily due to the high viscosity and low thixotropy, it is not possible to get quality prints method setdataframe print. Additionally, high speed curing of this paint-prototype (about 2-5 with power density of irradiation of 30 W/cm) is achieved only in the case of paint layers with a thickness of 1-1 .5 μm, typical for offset printing. In the case of screen printing, where the thickness of the paint layer is 20-50 μm, the curing time of such dye increases sharply.The aim of the present invention is to provide a printing ink with rheological properties that meet the requirements of the screen printing technique with a high speed UV curing sufficiently thick layer of paint.Printing ink UV utverjdaemogo, according to the invention, as a modified epoxy resin it contains acelerando epoxygenase resin molecular weight 550-600 the product of the interaction of equivalent amounts of (meth)acrylic kislota and epoxygenase resin of molecular weight 400 to 500, and further comprises photoinitiator, sonicator benzoyl peroxide and/or dinitrile azabicycloalkanes acid thixotropic agent Aerosil, antifoam polydimethylsiloxane acid and an inert inorganic filler, in the following ratio, wt. Pigment 1-15 Oligopyrroles 35-55
salyanova resin mole molecular weight 550-600 20-35 Photoinitiator 3-6
and/or dinitrile azo - visitmalta acid of 0.01-0.1
Thixotropic agent Aerosil 1-2,5
Antifoam polytime - tersilochinae fluid 0,5-1,0
Inert inorganic filler Rest
Printing ink KF-curing as oligoadenylate contains triethylene glycol dimethacrylate (TGM-3), dimethacrylate of triethylenemelamine (IFG-9), triacrylate pentaerythritol, dimethacrylate of diethylenglycol (MDF-2), or a mixture thereof.As pigments and the high absorption by the pigment UV radiation, its concentration in the paint should be minimal, and the high intensity of color and covering power are achieved due to the greater thickness of the paint layer. The content of the pigment in the claimed composition of the paint is 1-15 wt. and for most of the pigments most preferably the content of 1-3, and for whites 10-12 wt. The amount of pigment than 15 wt. it is undesirable because of the sharp decrease in the speed of drying, and less than 1 wt. due to the lower intensity of the color paint.As oligoadenylate used such industrial oligoadenylate as triethylene glycol dimethacrylate (industrial brand TGM-3), dimethacrylate of triethylenemelamine (IFG-9), triacrylate pentaerythritol, triacrylate of trimethylolpropane dimethacrylate of diethylenglycol (MDF-2), oligoribonucleotides (ACM-2) and other similar compounds. Most preferred are industrial oligoadenylate brands TGM-3 and MGF-9. The content of oligoadenylate in the paint is 35-60 wt. that is determined by the marginal values of the viscosity of the paint.As acelerando epoxygenase resin, the so-called Dianova of epoxyacrylate, molecular weight 550-600 use the product of the interaction of widespread epoxidization acid (1 mol acid per 1 mol of epoxy groups). Get epoxyacrylate oligomer has a molecular mass of 550-600 and contains almost no free epoxy groups, but has a high level of C= C-bond, which gives the paint a high curing rate. Getting acelerando epoxygenase resin described in example 1 of the present description of the invention. The number acelerando epoxygenase resin in the paint is 20-35 wt. Smaller amounts significantly affect the photosensitivity of paint (curing rate), adhesion to non-absorbent substrates and stability of the impression to external influences. The concentration of resin is more than 35 wt. leads to an unacceptably high viscosity of the ink due to the high viscosity of acelerando epoxygenase resin and, consequently, poor printing technical properties of the paint. The most preferred content acelerando epoxygenase resin 25-30 wt.As photoinitiator can be used known compounds for such photopolymerizable compositions, such as derivatives of anthraquinone, benzoin ethers, dimethylbenzylamine, etc. and mixtures thereof. The content of photoinitiator in paint too ordinary 3-6 wt. His lesser amounts do not provide high speed utverzhdeni the/P> As thermal coinitiator used such well-known and common compounds like benzoyl peroxide and/or dinitrile azabicycloalkanes acid. The content of coinitiator in the paint is 0.01-0.1 wt. The use of less than 0.01% of the quantities of terminator practically does not have an accelerating effect on the curing process, and the introduction of more than 0.1% is not desirable due to a noticeable decrease in the stability of the paint during storage.Paint stencil printing must possess thixotropic properties, so their composition is thixotropic agent Aerosil. The contents of aerosol paint, providing the required level of thixotropy, 1-2,5 wt. To prevent spanelement ink when printing setcachefilename way, you need to enter a small amount (0.5 to 1.0 wt. antifoam polydimethylsiloxane liquid PMS-200, PMS-400, etc. Because the paint is usually low pigment content, to give it the necessary rheological properties impose additional inert inorganic filler of the type of micro-talc, chalk, kaolin, Benfica, etc., the Amount of filler depends on the viscosity of the liquid binder content and Maslama the second flask with stirrer and reflux condenser load 100 hours epoxy brands of ED-20 epoxy-20% which corresponds to the content of the epoxy groups of 0.47 mol. Then add to 0.47 mol (33,5 hours) acrylic acid include mixing, enter 0,33-0,66 hours (1-2 wt. in the calculation of the acrylic acid) of hydroquinone is added and stirred for 30 min at room temperature. After that enter 0.7 g of triethylamine (0.5. of the total load) and gradually increase the temperature to 90-110aboutWith further stirring at this temperature to reach an acid number of < 5 mg KOH/g Obtained viscous acelerando epoxygenase resin is cooled to 40-50aboutWith and merge. Getting epoxygenase accelerandi resin-based resin ED-22, etc. are quite similar, considering only suitable content of epoxy groups.2. Preparation of printing inks UV curing.To 25 hours received (as described above) acelerando epoxygenase resin add 50% of the estimated number of oligoadenylate IFG-9, i.e., 28 hours and stirred by heating the mixture up to 35-40aboutC. Then add photoinitiator mixture of 3.0 hours 2-tertbutylamine, 10 am, isobutyl benzoin ether and 1.0 hours of dimethylbenzylamine and stirred until complete dissolution of photoinitiators. Then to the resulting idiocyncracies liquid PMS-200A and 15,45 hours of micro-talc, thoroughly stirred for 15 min and fray the obtained suspension on a three-roll kraskoterke 2-3 times to achieve the degree of milling of no more than 12-15 microns. To the resulting paint add the remaining half of the estimated number of oligoadenylate IFG-9 (i.e., 26 hours), in which pre at a temperature of 35 5aboutWith dissolved 0,05 including benzoyl peroxide. The finished paint is stirred using a mechanical stirrer for at least 30 minutes the resulting paint has the following characteristics. Color: black, milling fineness of less than 15 μm, the strength of the rod viscometer PVK-1 (without cargo, 22about(C) 7-8, spreading 32-35 mm, the curing of the paint layer thickness of 30-50 μm under a UV lamp CES-400 at a distance of 6.5 cm from the source (tank capacity of 30 W/cm) 10-12, curing under the lamp 2000 W (tank capacity of 80-100 W/cm) 2-3, which allows you to work on the printing firm "Kamman" with a minimum speed of 12 m/min. Printed on the specified screen printing machine prints on the grid 120 l/cm (speed printing and UV drying 12 m/min) resistant to water, alkali and acids, as well as to alcohol (resistance 5 points table.2). The paint has a high resolution and printing technical properties, cachestoreprivate epoxygenase resin and preparation of paint carried out analogously to example 1. The quantitative content of the components in the ink are shown in table.1. Characteristics of the inks are shown in table.2. Inks according to examples 8 to 11 correspond to the beyond the contents of main components. 1. PRINTING INK UV CURING, mainly stencil containing the pigment, oligopyrroles and modified epoxygenase resin, characterized in that the modified epoxygenase resin it contains acelerando epoxygenase resin mol.m. 550 - 600 - product of the interaction of equivalent amounts of (meth)acrylic acid and epoxygenase resin mol.m. 400 to 500, and further comprises photoinitiator, coinitiator - benzoyl peroxide and/or dinitrosopentamethylene acid thixotropic agent Aerosil, antifoam - polydimethylsiloxane liquid and inert inorganic filler in the following ratio, wt.%:
Pigment - 1,00 - 15,00
Oligopyrroles - 35,00 - 55,00
Arilirovaniya epoxygenase resin (mol.m.550 - 600 - 20,00 - 35,00
Photoinitiator - 3,00 - 6,00
Coinitiator - benzoyl peroxide and/or dinitrosopentamethylene acid - 0,01 - 0,10
Thixotropic agent Aerosil - 1,00 - 2,50
Antifoam - polydimethylsiloxane the same time, that as oligoadenylate it contains dimethacrylate triethylene glycol TGM-3, dimethacrylate of triethylenemelamine IFG-9, triacrylate pentaerythritol, dimethacrylate of diethylenglycol MDF-2, or a mixture thereof.
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
SUBSTANCE: method of duplex printing on flat polymeric materials, comprising applying to one surface of a transparent material of a layer of curable opaque polymer composition, comprising recurring image, curing the layer, applying to the other opposite surface of the transparent material of the layer of curable opaque polymer composition and curing the layer. Applying of the layer of opaque curable polymer composition, comprising recurring image, is carried out using the offset, photostencil or flexographic equipment, and applying a layer of curable transparent polymer composition is carried out using the automatic or semi-automatic photostencil printing equipment with a flat doctor blade with the rigidity of 65÷90 Shore, located at an angle of 70÷78 degrees to the grid of photostencil form with lineature of 34÷180 lines/cm, and curing the layer.
EFFECT: improved method.
3 cl, 3 dwg, 6 ex
FIELD: printing industry.
SUBSTANCE: invention relates to the dyeing composition for screen printing on the electric and electronic parts as well as for decorative graphics. The composition includes a solvent with the boiling point of 170°C or higher in the amount of 70 wt % or more based on the total weight of the solvent and the prepolymer or a polymer with the molecular weight of 2000 or more in the amount of 2 wt % or more in the total composition. The composition has viscosity ranging from 30 to 180 Pa⋅/Sec at 25°C and the thixotropic index within the range from 2.0 to 8.0. When using a screen printing plate with 360 cells per inch (14 cells per 1 mm), which is formed by a high-strength non-deforming stainless steel mesh made of wire with a 25 mm diameter, the width of blurred edges of the printed image does not exceed 10 microns from the specified size of the image's printing plate.
EFFECT: one-step production of printed products, with inclusing of detailed images and solid figures of large area of high quality and resolution, with no spreading or flaking with sharp edge sections of the image on solid figures and an increased leveling capacity.
7 cl, 1 tbl, 10 ex
FIELD: polymer materials.
SUBSTANCE: polyurethane resin is a product of reaction of at least one diisocyanate component and isocyanate-reactive components having first group of at least one polyol, second group of at least one polyol, and third group of at least one polyol, at least one amine, and, additionally, reaction-stopping agent, all polyols of the first group having average molecular mass between 1000 and 10000 g/mole, those of second group having average molecular mass between above 10000 and 20000 g/mole, and those of third group having average molecular mass equal to or higher than 800 g/mole. Ratio of diisocyanate component to isocyanate-reactive components is selected such that all isocyanate groups are present as products of reaction with isocyanate-reactive functional groups. Resin is used as film-forming binder in coating compositions, in particular in printing inks for printing on polyolefin substrates. Printing ink is preferably used for manufacturing printed layered articles.
EFFECT: increased gluing ability and heat resistance of ink laid on plastic substrate.
41 cl, 2 tbl, 12 ex
SUBSTANCE: invention relates typography dyes, in particular, to dye for deep printing. Invention describes dye for deep printing comprising the first binding agent chosen from group of water-soluble or water-diluted acrylate oligomers, photoinitiating agent and, optionally, a monomer as the second binding agent chosen from group consisting of water-soluble or water-diluted monomers of polyethylene diacrylates or polyethoxylated triacrylates used for correction of the composition dye viscosity value. Dye can comprise additives, such as pigments, filling agents, photosensitizing agents, photostabilizing agents and special pigments. Dyes shows viscosity value from 7 to 60 Pa . s at temperature 40°C and dispersed completely in aqueous washing off solution with sodium hydroxide in the concentration from 0 to 0.5 wt.-%. Dyes possesses the excellent capacity for paint removing and it is can be precipitated from the indicated washing off solution.
EFFECT: improved and valuable properties of dye.
28 cl, 9 ex
SUBSTANCE: invention relates to composition of aqueous dye used in stenciling, to a method for preparing indicated composition of stenciling, using indicated dying composition for stenciling and to securities printed using indicated dying composition. Invention describes composition of aqueous dye for stenciling containing the following components: (a) emulsion of acrylic or urethane-acrylic copolymer taken in the amount 30-70 wt-%, preferably in the amount 35-60 wt.-%, and more preferably in the amount 40-55 wt.-% of self-cross-linking emulsion of acrylic or urethane-acrylic copolymer as measured for the total mass of composition; (b) cross-linking agent taken in the amount 0.25-3 wt.-%, preferably in the amount 0.5-2 wt.-%, and more preferably in the amount 1-2 wt.-% of mass indicated cross-linking agent as measured for the total mass of composition; (c) optional catalyst; (d) optional pigments, and (e) optional additives and wherein indicated cross-linking agent comprises at least two different functional activity in a single molecule. The first functional activity is chosen by so manner to form a covalent bond with indicated polymer before printing and the second of indicated functional activities is chosen by so manner to carry out cross-linking indicated polymer for hardening printed dye. Emulsion of acrylic or urethane-acrylic copolymer is chosen from group possessing self-cross-linking property and wherein the composition shows pH from 7.0 to 8.5, preferably from 7.5 to 8.3 and more preferably from 7.5 to 8.0. Invention describes a method for preparing above said composition of aqueous dye for stenciling and comprising the following steps: (a) preparing emulsion of acrylic or urethane-acrylic copolymer; (b) optional preparing catalyst, optional pigments and optional additives; (c) preparing a cross-linking agent able to form a covalent bond under the first conditions with polymer prepared in (a), and cross-linking prepared polymer under the second conditions; (d) thorough mixing components prepared by points (a), (b) and (c) and providing interaction of polymer prepared by point (a) with a cross-linking agent prepared by point (c) under indicated first conditions; (e) regulation of pH value of the composition in the range from 7.0 to 8.5. Also, invention describes using the indicated composition of aqueous dye as a dye for stenciling and security document with signs printed by using indicated composition of aqueous dye. Proposed composition shows improved stability and improved toxicological properties in the combination and excellent stability of printed and hardened dye to chemical and physical effects.
EFFECT: improved properties of dye, improved preparing method.
14 cl, 6 ex
FIELD: light industry; composition of decorative coats for wallpaper; manufacture of pearly ink for intaglio printing on wallpaper.
SUBSTANCE: composition of proposed printing ink for wallpaper contains 16-16.5 mass-% of pearly pigment; 12-12.5 mass-% of ethyl alcohol; 46-46.4 mass-% of binder - acrylic latex of butyl acrylate copolymer (19-21%) and methacrylic acid (10-12%) and water; copolymer acrylic latex is produced by method of radiation emulsion polymerization of butyl acrylate, vinyl acetate and methacrylic acid under action of ionizing radiation at dose rate of 0.05-0.1 g/s to absorbed doses of 1.5-2 kgr.
EFFECT: avoidance of lamination of ink; easily washable ink; enhanced heat resistance of ink.
1 tbl, 2 ex
SUBSTANCE: invention pertains to polyurethane resin, which is a product of a reaction between at least one diisocyanate and components, containing functional groups, which have capacity to react with isocyanates, with the following composition: (a) first group, which is formed by one or more polyester-polyols based on ethers, each of which has average molecular mass ranging from 400 to 12000 g/mol, (b) second group, formed by one or more poly hydroxilated resins, chosen from a defined group of resins, (c) optional third group, formed by one or more polyols, each of which has average molecular mass, equal to or less than 800 g/mol, which are also chosen from a defined group of polyols, and (d) at least one amine and a reaction chain-stopping agent. The ratio of equivalent masses of diisocyanate and components, containing functional groups, with capacity to react with isocyanates, is chosen such that, naturally all isocyanate groups of diisocyanate are present as a product of the reaction with one of the above mentioned functional groups, with capacity to react with isocyanates. The invention also relates to the method of obtaining the above mentioned polyurethane resin, to polyurethane resin obtained through such methods, to coating for plastic substrates, containing the proposed resin, as a polyolefin binding substance, to use of such a polyurethane resin as a film forming substance in printing ink for printing on plastic substrates, as well as to the method of obtaining a laminate, which has a layer obtained when printing an image, including stages (a)-(d), with use of coating from polyurethane resin, and to a laminate, obtained using such a method.
EFFECT: obtaining a coating from polyurethane resin, with good heat resistance and excellent initial adhesiveness.
SUBSTANCE: water based flexographic contains biodegradable polyhydroxyalkanoate (PHA) consisting of monomers having the following formula: where n is an integer from 1 to 5, and R1 is selected from a group comprising hydrogen, alkyl from C1 to C20, and alkenyl from C1 to C20, and having molecular weight ranging from 500 to 5000000 g/mol, binder substance which is three-block amphiphilic compound having two hydrophobic terminal areas with linear and/or branched aliphatic chains CnH2n+2, n = 1-40, and one central hydrophilic area - polyethylene glycol and its derivatives; or having one central hydrophobic area with linear and/or branched aliphatic chains CnH2n+2, n = 1-40, and two hydrophilic terminal areas, a solvent, and a dye or pigment in amount sufficient for leaving a visible mark on a base. Concentration of PHA in the ink ranges from 20 to 80% (weight/volume), concentration of the binder ranges from 0.5 to 20% (weight/volume), concentration of the solvent ranges from 1 to 25% (weight/volume) and concentration of the dye or pigment ranges from 1 to 40% (weight/volume). Described also is a method of preparing water based flexographic ink and a printing composition which contains the said flexographic ink.
EFFECT: improved biodecomposition properties.
13 cl, 6 ex
FIELD: textiles and paper.
SUBSTANCE: non-woven fabric is proposed, on the visible surface of which the ink composition is applied comprising from about 40 wt % to about 80 wt % of the dry weight of the ink of linking agent - aziridine oligomer with at least two aziridine functional groups. Also an absorbing article is proposed comprising a liquid-permeable upper layer, an absorbing core and a liquid-impermeable lower layer that contains the specified non-woven fabric with the said applied ink composition. The application of ink on the non-woven fabric can be carried out by the method of flexography or a method of ink-jet printing.
EFFECT: printed non-woven fabric has high resistance to abrasion even in case of its contacting with fatty substance.
16 cl, 2 dwg, 2 tbl, 2 ex
SUBSTANCE: carrier based on high-density polymer is decorated with ink for printing, comprising at least one pigment and one binder. The binder is an oxygenised polyolefin wax in the form of an aqueous emulsion, and the wax has a Brookfield viscosity of less than 5000 mPa*s at 150°C and a pH level of 28 to 32 mg KOH/g, and the said ink has a viscosity of less than 2000 mPa*s at 25°C. The ink is applied in a continuous or discrete manner on at least one surface of the carrier. The subject of the invention is also a decorated carrier based on high-density polymer, a multi-layered product, and a method of manufacturing of a multi-layered product with a coating of the said ink.
EFFECT: creation of the ink of simpler composition and easier to use.
16 cl, 1 dwg, 4 tbl
SUBSTANCE: invention relates to polyamide-based printed films which are used as casings for food products, particularly artificial sausage casing. Disclosed is a printing ink system for printing on (co)polyamide-based films. Said system contains a radically curable primer ink and UV radiation radically curable printing ink which forms an almost colourless layer of primer ink. The primer ink contains a reactive compound which, in one molecule, contains a group capable of bonding with a (co)polyamide surface and an ethylenically unsaturated group which can undergo radical-initiated polyaddition. The invention also discloses a (co)polyamide-based single- or multilayer film which is printed with said printing ink system and a method for production thereof.
EFFECT: printing ink system enables to print on (co)polyamide-based food films with high adhesion to the film, resistance to friction, scratching even without an additional lacquer coat, mechanical and thermal processing, resistance to migration of ink components, which prevents foreign odours from food products.
27 cl, 1 ex
SUBSTANCE: invention relates to organometallic latent catalytic compounds which are suitable as catalysts in polyaddition or polycondensation reactions which are catalysed by a Lewis acid type catalyst, particularly for cross-linking a blocked or non-blocked isocyanate or an isothiocyanate component with a polyol or a polythiol to form polyurethane. Polyaddition or polycondensation reactions are initiated by that a catalyst is released while holding in electromagnetic radiation in wavelength range of 200-800 nm. The latent catalytic compound has formula I or II, Me(FG)(m-x)Ax (I); Ax(FG)(m-1-x)Me-O-Me(FG)(m-1-x)Ax (II), where Me is Sn, Bi, Al, Zr or Ti; m is an integer from 1 to the coordination number of Me; x is an integer from 0 to (m-1); A is a C1-C20 alkyl, halogen, C7-C30 aralkyl, C1-C20 alkoxy group, C2-C10 alkanoyloxy group, C6-C18 aryl or C6-C18 aryl, which is substituted with one or more C1-C20 alkyls; and under the condition that if x is greater than 1, A are identical or different; and FG independently represents a group of formula (Z), (B), (C), (D), (E), (F), (G), (L) or (M)
where values of radicals are given in the claim. The invention also relates to a polymerisable composition and a method for polymerisation in the presence of said catalytic compounds. The invention enables to initiate the reaction only if desired by external activation, such as heating or light.
EFFECT: widening the operating window with a polymer mixture until the chain reaction begins.
12 cl, 14 tbl, 67 ex