Dye for deep printing hardening by effect of uv-radiation

FIELD: dyes.

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

 

The technical field

The invention relates to compositions of inks for gravure printing, in particular for metallography, method of production and application of the specified composition, the use of specified composition in the process of gravure printing and the method of its deposition from the obtained hybrid washing agent operation solution, as well as securities made by the gravure printing method using the said composition.

Prior art

The composition of the printing ink contains components that polymerize on the mechanism of radical polymerization upon irradiation with electromagnetic radiation or electron beams. In addition, this composition finds a suitable dispersibility in hybrid washing agent operation solutions with a low concentration of sodium hydroxide.

The printing of securities requires exceptional print quality and special measures to prevent forgery and counterfeiting printing papers.

Securities preferably printed by intaglio. The term "intaglio", as used in this application will be applied to the method of printing with the so-called "engraved steel matrix" or "copper printing plates", which is well known to a person skilled in the art. Used in this case, the printing plates are usually engraved Nickel plate or Qili is dry, chrome plated, produced by galvanic replication of the original copper printing plates, often engraved manually. Subsequent should not be applied to well-known methods Rotogravure or gravure printing, based on the paint of a different type.

When Rotogravure printing from engraved steel matrix on a rotating engraved steel cylinder, bearing a picture or image that is printed, serves the paint using the one or more stencil rolling cylinders, through which the image of paints of different colors are transferred onto the printing cylinder. After rolling excess paint on a flat surface of the printing cylinder is washed off using a rotary washing cylinder with a coating of plastisol. Then the paint remaining in the engraving of the printing cylinder, is transferred under pressure to the basis on which is printed, which may be a paper or plastic in the form of a sheet or tape. Washing the cylinder, in turn, continuously cleaned using a diluted aqueous sodium hydroxide solution as emulsifying environment for washed away excess paint or device for cleaning paper/calico, or an organic solvent, such as trichloroethylene. Such stage of the process and machinery used for printing is engraved steel matrix, well-known specialists in this field of technology.

Printing ink for printing securities method with engraved steel matrix currently used printing machines for gravure printing with supplied sheet or supplied by the tape must meet the next requirements.

- Correct rheological properties at the time of transfer of ink to the printing cylinder and at the time of printing (rheology).

- The ability of a paint easily and efficiently be deleted from napechatala surface area of the printed matrix (blanket).

- Ease of cleaning washing cylinder aqueous solution containing 0.1-1% of caustic soda and a similar concentration of detergent, or even clean water (purification).

- Resistance of the ink to the printing on the ink rollers before printing.

Such characteristics of film formation, which allow further manipulation of the sheets or strips coated with a film thickness of 200 microns at the latest 24 hours after printing or preferably immediately after printing.

Properties deathmarine. In the case of printing on a continuous strip at speeds up to 150 m/min, instant rewind basis with printed image is required. The paint should be allowed to ensure that there will be no transfer is or ink into with svezhenapechatannyh surface on the opposite side of the collapsible framework which is in contact with it. In the case of the tape printing machines are equipped with devices for drying with hot air (which supplies, for example, a TEC-Systems, W.R. Grace & Co.), must be installed speed printing on the tape up to 150 m/min using the depth of engraving to 200 microns. For sheet printing machines after printing stops from 500-10000 sheets depending on the specific basis for the printing and engraving depth should be typed without the sheet.

- Exceptional chemical and mechanical resistance printing according to the technical requirements established by Interpol at the 5th International conference on monetary signs and their forgery, or the methods of testing Bureau of Engraving and Printing, as described in section M5 VER-88-214 (TN).

Acceptable Toxicological properties and properties for the environment.

As is known in the art of printing, the printed base, as a rule, should be dried for further processing and achieve the required properties on the stability of the final product.

The term "drying" refers to three different mechanisms that are well known to experts in the field of printing. Two purely physical drying process represents the evaporation of the volatile solvent from the ink, and remain its components: solid resin and pigment, and resorption (the inlet of the existence) of nonvolatile solvent ink based. The third chemical method of drying, also known as curing, represents the transition of the liquid composition in the solid state due to the chemical reaction of polymerization or crosslinking. We can assume the existence of one or more of the processes of drying when drying the same to a certain printing inks, and printer, as a rule, does not distinguish between physical and chemical drying.

Inks for gravure printing, as a rule, otverzhdajutsja through the oxidation reaction. It is rather a way of slow drying, and securities, respectively, printed and folded in a stack in the form of sheets, as a rule, you cannot run further before will not end the drying period, lasting from one to several days.

The curing of printing inks with UV radiation is known and is widely used in the technique of printing. UV curing allows for fast, almost instantaneous drying of a film of printing ink and, therefore, opens the way to increase production speed. The chemical curing reaction in most cases is initiated by radicals formed under the action of UV radiation. In order to obtain a sufficient sensitivity to UV radiation, it is necessary to enter in the printing ink photoinitiator, and the specified photoinitiator decomposes under the action of UV radiation, forming free is ing radicals, which, in turn, initiate the curing reaction.

In FR 2274669 describes paint for metallography-based varnish (binder) based on Tung oil and unsaturated aliphatic dicarboxylic acids, which can be cured under the action of UV radiation in the presence of oxygen. Due to the type of chemical compounds the rate of curing (polymerization) of such binder rather low, and thus takes a long time to complete the reaction. Also describes what the paint is for gravure printing is dispersed in an alkaline solution of caustic soda, where the concentration of alkaline compounds generally ranges from 0.5 to 2 wt.%. In order to promote dispersion in hybrid washing agent operation solution should be added molecules, actively influencing the surface tension (surfactants), such sulfonated castor oil or lauryl sulfate.

In EP 432093 describes a different color gravure, dispersible in a solution of caustic soda. The range of concentration of the alkaline solution is the same as in the above patent. This paint for gravure printing is cured by irradiation of UV through the process of cationic polymerization. However, the proposed photoinitiator present a Toxicological risk because they contain toxic chemical elements, such as As, Sb or F, respectively.

The aim of the present invention is to overcome the disadvantages of the known prior art, in particular by the composition of the inks for gravure printing, which can easily and completely be cured, which requires the necessary processing after washing in printing machines compounds with lower demands from the environment, and which does not contain toxicologically problematic additives. Another property described inks for gravure printing is the solubility in water and a simple, fast and economical method of deposition of the dissolved paint from hybrid washing agent operation solution.

Another objective of the present invention are printing inks, curing using ultraviolet light or short-wavelength visible light, for printing securities by the method of printing from engraved steel matrix. Another objective of the present invention is a UV-curable printing ink based photoinitiators with low toxicity.

These and other objectives are achieved by using the invention described below.

Disclosure of the invention

The printing ink of the present invention to process metallography contains a binder which is selected from the group of water-soluble or dilutable with water acrylate oligomers. According to the invention predpochtite lname the oligomers are urethaneacrylate oligomers and epoxyacrylate oligomers, because such products or commercially available, or easily get on the basis of commercial products. Water-soluble urethaneacrylate can be obtained from water-soluble or hydrophilic polyols (ethoxylated polyols, such as the ethoxylated trimethylolpropane supplied by Perstorp Speciality Chemicals, Sweden) and 2-hydroxyethylacrylate or of ethoxylated monoacrylate (such as polyethylene or polypropylenglycol, Bisomer supplied by Laporte Performance Chemicals, England), which impart to the water-soluble polyols using diisocyanates (colordistance TDI, hexane-1,6-diisocyanate HDDI, isophorondiisocyanate IPDI and so on).

Water-soluble epoxyacrylate can be obtained from ethoxylated di - or triglyceridemia (such as diglycidyl esters of polyethylene or polypropylenglycol, for example, diglycidyl ether of diethylene glycol, supplied by Sigma-Aldrich, polyoxypropylene and triglyceride esters Eurepox, supplied by Witco, and, for example, triglyceridemia based on 9-of ethoxylated trimethylolpropane Grilonit V51-56 shipped by EMS Chemie, Switzerland) by adding acrylic acid using standard procedures.

Other oligomers that can be used are preferability and acrylicresin. Each oligomer contains realoneplayer acrylate functionality is performance communications group and two or more repeating units, separating the functional groups. The term "oligomer" is used to refer to molecules obtained by chemical combination of two or more reactive units (monomers), in accordance with the number of connected mobile units is still relatively small. Oligomers represent an intermediate stage between the monomers and the final polymer. They have a molecular weight which is higher than the molecular weight of the monomers, but lower than the Mw of the final polymer. Acrylate monomers are molecules containing reactive acrylate group (R1R2C=CR3-CO-OR0) (and R0represents or organic residue, or a hydrogen atom or a negative charge). Acrylate oligomers are products with a higher molecular weight, obtained by stitching through the acrylic double bond two or more acrylate monomers.

Monomers with low viscosity is also described as reactive thinners due to the fact that they are able to reduce the viscosity of the oligomer or prepolymer, when included in the structure utverzhdenii end of the film. The binder or resin, which, essentially, are polymers of synthetic or natural origin with average or iscoe molecular weight, used in the compositions of paints and coatings for "gluing" the basis of the desired functional additives, such as pigments and/or high molecular weight cross-linked coating on the surface of the substrate, which acquires the properties and appearance.

Curable under the action of radiation oligomers or prepolymers have a significantly lower molecular weight than resin. They consist in most cases of several recurring Monomeric units, which after exposure to accidental radiation of sufficient energy connect ("cures") with the formation of the crosslinked macromolecular structure. The terms "oligomer" and "prepolymer" are generally used interchangeably in the field of technology of coatings or inks, cured under the action of radiation, and, of course, differ from the term "monomers".

Strictly speaking, the monomer is a molecule that can form chemical bonds with the same molecule or molecules of similar types, and get chains, sheets or three-dimensional grid (polymers), which may contain from a few to a very large number of Monomeric constituent elements. In the context of the present invention the monomers are understood as molecular unit capable of polymerization under the action of radiation, and which is usually, but not necessarily, will have a molecular weight of less than oligomers and prepolymers. Monomers generally have a lower viscosity than the oligomers, and can be used as reactive diluents to reduce the viscosity of the compositions, cured under the action of radiation, increase the speed of curing and increasing the degree of crosslinking (Chemistry &Technology of UV &EB formulation for coating, inks and paints, vol.2, p.31).

In the context of the present description, the term "solubility in water" means that the compound in an amount of 5 g dissolved in 95 ml hybrid washing agent operation solution at a temperature of from 20 to 50°C. the Corresponding temperature turbidity should be below or 20°With or above 50°C. Conventional hybrid washing agent operation solutions for metallography contain caustic soda in a concentration in the range from 0.5 to 1.2%. For inks for gravure printing of the present invention, the concentration of caustic soda is from 0% (pure water) to 0.5%. The concentration of ink for gravure printing in hybrid washing agent operation solution, as a rule, does not exceed 5%. Water-soluble or dilutable with water acrylates of the present invention is chosen as described above.

Group urethaneacrylate noteworthy include aliphatic urethaneacrylate, aliphatic urethaneacrylate and oligomers of urethaneacrylate available from different vendors. Group epoxyacrylate includes aliphatic epoxyacrylate, Alif the political epoxidized and oligomers of epoxyacrylate, which experimental products available from Sicpa S.A., France, as described above. A binder may also be a mixture of the above groups of acrylate oligomers. The use of water-soluble or dilutable with water connections reduces the number of emulsifiers or active compounds that affect the surface tension required to achieve a suitable dispersive ability of the pigment ink in water solutions.

Another optional but preferred component of the compositions of printing ink are monomers selected from the group of water-soluble or dilutable with water monomers of polietilenglikolsuktsinata (PEG-acrylate) or polyethoxysiloxane of polytrichales, which are used for adjusting the viscosity of the printing ink to the desired value. The monomers of PEG-diacrylate include compounds such as monomers of PEG-X-diacrylate, where X ranges from 200 to 700, available from different vendors. The monomers (poly)ethoxylated polictically include compounds similar to the 7-ethoxylated to trimethylolpropane (TMRCA), 14-ethoxylated TMRCA, 15-ethoxylated TMRCA, 20-ethoxylated TMRCA or 15-ethoxylated bisphenol-a-diacrylate. Most of the compounds listed above, are commercially available. This list should not be ponies who use them as full and bounding the number of useful compounds of the above classes.

The viscosity of the paint composition depends, among other content in the water, pigments, fillers and other components of the composition. However, there are limits, such as the amount of each of these substances, taking into account the way of printing and the desired properties of the print. For example, when metallography excessive amount of water in the paint is harmful due to high pressure during printing.

Another component of the printing ink is photoinitiator necessary to initiate the polymerization reaction described binder after irradiation by electromagnetic radiation or an electron beam.

Other optional components of the composition of printing ink are additives such as pigments to provide color paints, fillers, photosensitizers, photostabilization, emulsifiers and special pigments for protection purposes.

According to the invention a binder and, optionally, additional monomers should be chosen appropriately in order to obtain a composition that is dispersible in water hybrid washing agent operation the solution is essentially 100%. The value 100% is the optimal value. The term "dispersible" should be understood as it is defined in Romp Lexicon, "Lacke und Druckfarben", published 1998, Theime Verlag Stuttgart, page 147. Water hybrid washing agent operation, the solution may contain sodium hydroxide in which concentratie in the interval from 0 to 0.5 wt.%. However, it is preferable to choose the concentration of sodium hydroxide from 0.1 to 0.3 wt.%, more preferably 0.1 to 0.2 wt.%. Essentially complete dispersibility of the composition of the paint will avoid separation of the composition of the paint from water hybrid washing agent operation of the solution and, thus, to avoid the possibility of clogging of the parts of the system containing water hybrid washing agent operation solution. In addition, as will be described below, this allows you to enhance the extraction of unused paint from water hybrid washing agent operation solution.

Low concentration of sodium hydroxide in hybrid washing agent operation the solution required by the printing ink of the present invention, has the advantage, reflected in a significantly smaller burden on the environment compared to hybrid washing agent operation solutions with a significantly higher concentration of sodium hydroxide required for the printing inks of the prior art. However, solutions with a low concentration of sodium hydroxide used in the printing ink of the present invention still also provides a relatively alkaline environment for effective protection against corrosion hybrid washing agent operation system.

The main aspect of the invention relates to the adjustment and regulation of the viscosity of the ink for metallography. The viscosity of the printing ink composition is chosen such that it ranged from 7 to 60 PA·s at 40°C. a Viscosity of from 12 to 40 PA·p is impactfully, and even more preferable viscosity of the composition is from 15 to 30 PA·in order to achieve suitable rheological properties of the inks in the printing process.

As part of the invention, select the binder viscosity lying in the range from 5 to 40 PA·s at 40°Sato opens the possibility to reduce the amount of other components of the composition to achieve the desired rheological properties of the paint.

Binder is chosen preferably from the above group of compounds with molecular weight M from 1500 to 10000 g/mol, where the molecular weight determined according to the procedure described in Polymer Synthesis, 2nd revised edition, Paul Rempp and Edward W. Merrill, Ed. Huthing & Wepf, 1991, 344 pages. The specified range of molecular weight gives the paint with sufficient ability to crosslinking and formation of stable three-dimensional mesh structure.

In the paint composition for metallography the content of water-soluble or dilutable with water urethaneacrylate or epoxyacrylate oligomers is from 30 to 70% of the total weight of the paint. The preferred binder content is in the range from 40 to 60%, and more preferably from 45 to 55%relative to the total weight of the composition.

According to the invention, the content of water-soluble or dilutable with water monomers of PEG-diacrylate or polyethoxysiloxane of polytrichales choose preferable online is rule from 5 to 25 wt.% respect to the total mass of the ink. The preferred content of water-soluble or dilutable with water monomers of PEG-diacrylate or polyethoxysiloxane of polytrichales is from 10 to 20 wt.%, and even more preferable content of from 10 to 15 wt.%.

The amount of water-soluble or dilutable with water monomers of PEG-diacrylate or polyethoxysiloxane of polytrichales or tetraacrylate allows you to adjust the viscosity of the entire composition of printing ink. At the same time, these components provide functional groups, such groups spanning paint, and, thus, participate optimally in the formation of the polymerized matrix binder.

Paint for metallography contains photoinitiator, is capable of initiating the radical polymerization reaction in the above-mentioned binders and monomers. The appropriate type of photoinitiator creates the opportunity for the beginning of the appropriate type polymerization reactions, that ideally takes place at a high speed and provides rapid curing the applied ink.

According to another aspect of the invention, photoinitiator can be selected from the group consisting of compounds of the type of acetophenone or benzophenone. It is well known that these types of photoinitiators disintegrate into free radicals under the action of ultraviolet light or short-wavelength hour and visible light, moreover, these radicals capable of initiating the polymerization processes.

In addition, photoinitiator can have a maximum absorption at wavelengths from 300 nm to 450 nm. The radiation of these wavelengths can easily be obtained by using devices such as a mercury lamp moderate pressure or a mercury lamp with the addition of Ga/Pb, Fe/Co, respectively.

Another aspect of the invention is the use of a photosensitizer, enabling higher output captured UV photons or photons of visible short-wave radiation. The photosensitizer is chosen from among the chemical compounds of the group of thioxanthone. This group includes, for example, isopropylthioxanthone (ITX), 1-chloro-2-propoxyimino (SRD), 2-chlorothioxanthone (MMS) and 2,4-dietitican (DETX), and mixtures thereof.

According to another aspect of the invention to the ink type UV stabilizer. In the inks of the present invention has been successfully used Florstab UV-1, supplied Kromachem Ltd., England. The presence of UV stabilizer is used to prevent premature polymerization during retrieval or during operation of the paint before it is applied, as well as in printing machines to the stage of curing with radiation.

Another aspect of the invention relates to the content of the pigment in the printing ink composition. According to the invention, it is possible to apply the substance of the pigment in the mass content of from 3%to 23%. Preferably the content of the pigment is from 5 to 12%, and even more preferably, the pigment content is from 7 to 10% relative to the total mass of the ink. The type of pigment selected from the group of pigments that can be used in UV-curing inks according to the prior art.

According to another aspect of the invention, the content of the filler in the composition is chosen in the range from 6 to 50 wt.% by weight of the paint. The amount of filler ranges from 25 to 40%, and preferably from 25 to 35% relative to the total mass of the ink.

According to another aspect of the invention, the filler is chosen from the group of natural and obtained artificially of calcium carbonate. The type of calcium carbonate is chosen preferably from varieties with low oil absorption in order to avoid capture part of the binder filler, which leads to incomplete polymerization of the binder.

Another part of the invention is a method of obtaining a composition of paint for metallography with a viscosity of from 7 to 60 PA·s at 40°C. a More preferred range of viscosity is the interval from 12 to 40 PA·s, and even more preferably, the interval is from 15 to 30 PA·s at 40°C. the Viscosity of the ink according to the invention was adjusted by adding water-soluble or dilutable with water monomers of PEG-diacrylate or polyethoxysiloxane paliate is Krylatov.

Another component of the invention is a method of applying paint to metallography, radiation-curable, in the process metallography using water hybrid washing agent operation system. Water hybrid washing agent operation the system uses hybrid washing agent operation solution with a concentration of sodium hydroxide of from 0 to 0.5 wt.%, preferably from 0.1 to 0.3% and more preferably from 0.1 to 0.2 wt.%.

Paint wastes, dissolved in hybrid washing agent operation the solution after the printing process, precipitated by adding a solution of an inorganic salt of a halide or sulfate of the metal. This method is also referred to as flocculation. The effect responsible for this change in solubility of printing ink, is the so-called "salting out", well known in the field of water-soluble organic polymers. Adding such solution of inorganic salts allows you to extract a large amount of ink dispersed in used hybrid washing agent operation the solution, and, hence, allows to produce less waste water. The precipitated dye can be extracted by conventional methods of separation of solids and liquids, such as filtration, ultrafiltration, centrifugation and the like, known to specialists in this field of technology.

The remaining dissolved organic hybrid washing agent operation contents of the solution after ultrafiltration, is mokulele and processing filtering can be determined by measuring the chemical oxygen demand (COD), total organic carbon (TOC) and dissolved organic carbon (DOC), which are standard procedures in the field of characterization of wastewater. Environmentally friendly inks for gravure printing are characterized by low values of COD, TCO or DOC remaining hybrid washing agent operation waste solution.

The invention also relates to a method of deposition of the above inks for gravure printing of hybrid washing agent operation solution with printing machines for gravure printing. The specified deposition in a conspicuous degree caused by adding solutions of inorganic salts, halides or sulfates of metals, such as solutions of calcium chloride, iron chloride, sodium chloride, potassium chloride or aluminum sulfate.

The invention also relates to a method of deposition of dispersed waste inks for gravure printing of hybrid washing agent operation of the solution, and this method comprises bringing the temperature of the water hybrid washing agent operation solution before getting in the interval from 20 to 50°C, preferably from 20 to 40°S, and preferably from 25 to 35°C. Temperature affects the solubility of printing ink in hybrid washing agent operation solution.

In another aspect the invention relates to a method of obtaining a fingerprint on the canvas using paint composition according to the invention. The specified printing using the specified paint poses the s a precipitate on the paper or polymer bases the film thickness of 20-60 μm, preferably 30-50 μm. A notable advantage of the inks according to the invention is the fact that these films rather considerable thickness can be cured completely and quickly through exposure to electromagnetic radiation or an electron beam, and receive excellent and fully dried print with excellent chemical and physical resistance and non-stick printed surface immediately after leaving the printing machine.

Now the invention will be explained also by the examples of compositions that are not restrictive, which are given for purposes of explanation.

The list of designations

- Ebecryl 2001 UCB - aliphatic oligomer urethaneacrylate

- Ebecryl 2002 UCB - aliphatic oligomer urethaneacrylate

- L-300-627 SIPCA, France, urethaneacrylate oligomer

- IRR 210 UCB - alkoxycarbonyl triacrylate

- IRR 280 UCB - diacrylate PEG-400

- Photomer 4155 Cognis - 7-ethoxylated TMRCA

- Photomer 4158 Cognis - 14-ethoxylated TMRCA

- OVP® - optically different pigment from Flex Corp., Santa Rosa

- OVI® - optically different paint supplied Sicpa S.A., Lausanne

Example I

Get paint according to this structure, conduct printing and curing.

SamplesAndB
Ebecryl 200246,
L300-62746,6
Wax (mining)4,04,0
Emulsifier3,03,0
UV stabilizer2,02,0
Irgolic red 8B8,08,0
Filler (caso3)30,030,0
ESACURE ITX2,62,6
IRGACURE 369the 3.8the 3.8
Only100,0100,0

ResultsAndIn
Viscosity / [PA·]2745
Stickiness / [T.U.]240300
Blanket / paper*55-6
Print quality / [60°]5-65-6
Drying / [2×50 m/min]*3-43
Cleaned. in 0.1% NaOH*5-64-5
COD [mg O2·l-1]650010800
* 6=very good; 5=good; 4=fair 3=poor; 2=very bad.

Classification results remover, print quality, drying and the possibility of purification in 0.1% NaOH solution set according to laboratory experiments.

Example II

Get paint according to the procedure described for example I.

SamplesD
Ebecryl 200235,635,6
IRR 21011,0
IRR 28011,0
Wax (mining)4,04,0
Emulsifier3,03,0
UV stabilizer2,02,0
Irgolic red 8B8,08,0
Filler (caso3)30,030,0
ESACURE ITX2,62,6
IRGACURE 369the 3.8the 3.8
Only100,0100,0
ResultsD
Viscosity / [PA·]1620
Stickiness / [THUS]110130
Blanket / paper*5-65-6
Print quality / [60°]5-65-6
Drying / [2×50 m/min]*55
Cleaned. in 0.1% NaOH*55
COD [mg O2·l-1]1067510865
* 6=very good; 5=good; 4=fair; 3=poor; 2=very bad.

Example III

SamplesEF
Ebecryl 200132,0
Ebecryl 200235,6
The promoter 415514,6
The promoter 415811,0
Wax (mining)4,04,0
Emulsifier3,03,0
UV stabilizer2,02,0
Irgolic red 8B8,08,0
Filler (caso3)30,030,0
ESACURE ITX2,62,6
IRGACURE 369the 3.8the 3.8
Only100,0100,0
Results EF
Viscosity / [PA·]2714
Stickiness / [T.U.]225125
Blanket / paper*5-65-6
Print quality / [60°]5-65-6
Drying / [2×50 m/min]*55-6
Cleaned. in 0.1% NaOH*55
COD [mg O2·l-1]1059010700
* 6=very good; 5=good; 4=fair; 3=poor; 2=very bad.

Example IV

The following samples are obtained from the application of the monomer PEG400DA (IRR280 or Cray Valley SR344) and aliphatic oligomer urethaneacrylate (Ebecryl 2002). Receive and experience different samples, including songs red, intense green and OVI®.

Sample G: red
L300-62735,6
IRR 28011,0
Wax (mining)4,0
Emulsifier3,0
UV stabilizer2,0
Irgolic red 8 8,0
Filler (caso3)30,0
ESACURE ITX2,6
IRGACURE 369the 3.8
Only100,0
Sample H: intensive green
Ebecryl 200246,6
Wax (mining)4,0
Emulsifier3,0
UV stabilizer2,0
Mapico yellow 2159,5
Irgolic green GL1,5
Carbon black Raven0,45
Irgolic blue LGLD0,35
Filler (caso3)26,1
ESACURE ITX2,6
IRGACURE 369the 3.8
Only100,0
Sample I: OVI® from green to blue
Ebecryl 200246,6
Wax (mining)4,5
EmulsifierUV stabilizer2,0
OVP green/blue22,0
Filler (caso3)6,5
Aerosil 2009,0
ESACURE ITX2,6
IRGACURE 369the 3.8
Only100,0
ResultsSample GSample NThe sample I
Viscosity / [PA·]6-730-4030-40
Stickiness / [T.U.]*100200240
Blanket / paper*5-65-65-6
Print quality / [60°]5*5-65
Drying / [2×50 m/min]*4-5*4-55-6
Cleaned. in 0.1% NaOH*5*5-65-6.
* 6=very good; 5=good; 4=fair; 3=poor; 2=very bad.

Example V

IRR280
Sample J
Ebecryl 200235,6
11,0
Wax (mining)4,0
Emulsifier3,0
UV stabilizer2,0
Irgolic red 8B8,0
Filler (caso3)30,0
ESACURE ITX2,6
IRGACURE 369the 3.8
Only100,0

The ink of the above composition is used for printing in an industrial environment. The first test when printing is performed on the printing machine gravure MOI, MiniOrlof, from De La Rue - Giori, using both pure water hybrid washing agent operation solution, and hybrid washing agent operation solution with 0.1% NaOH. In both the print quality and washes great. The second test printing is performed on the printing machine gravure SOI, SuperOrlof, in the same conditions. In the case of hybrid washing agent operation when the solution is pure water, the paint of example 1 is washed off from the printing plate and is cleared from the printing cylinder in the right way. The flushing and cleaning of the paint significantly improved when using hybrid washing agent operation solutions with 0.1 or 0.2% NaOH. With further increase in the concentration of NaOH (0.3% and over) again we have the problem of washing and cleansing, which may be exacerbated by further increasing the concentration of NaOH.

The COD values for sample J is measured in both situations.
Sample J / CaCl2(35%)COD [mg O2·l-1]
The solution with pure water, pH 6-72750
of 0.2% NaOH, pH 10-113340

Example VI

A sample similar To the sample J, but ERR280 replace Ebecryl 2002.

Measured COD of sample G. Disparut within 1-2 hours of 3 g of fresh paint in 97 g of water (with 0.1% NaOH), and heat at 50°C. the Dispersion paint is cooled under stirring. At 30°add 1.5% of diatomaceous earth. Gradually, in small portions, add 10% solution of CaCl2(1.5 ml). Use three different salts to precipitate paint sample G. Volumetric red precipitate is filtered off using filter paper. The solution analyzed in the same terms.

As you can see from the results, the values of COD do not indicate their connection with nature or the charge of polyvalent cations used for flocculation of waste paint. However, a more critical parameter is the nature of acrylate oligomers or monomers.

1. Ink for gravure printing, which is the composition comprising the first binder selected from the group consisting of water-soluble or dilutable with water acrylate oligomers, urethaneacrylate oligomers, epoxyacrylate oligomers, acriluretanic oligomers and preferability oligomers;

photoinitiator to initiate polymerization of the binder after irradiation by electromagnetic radiation or electron beams;

the paint is completely dispersed in water hybrid washing agent operation solution with a concentration of sodium hydroxide of from 0 to 0.5%, preferably from 0.1 to 0.3% and more preferably from 0.1 to 0.2% and the viscosity of the composition is from 7 to 60 PA·at a temperature of 40°C.

2. Ink for gravure printing according to claim 1, which further comprises a second binder is a monomer selected from the group consisting of water-soluble or dilutable with water monomers of polietilenglikolsuktsinata or polyethoxysiloxane of polytrichales for adjusting viscosity.

3. Ink for gravure printing is about to claim 1, which additionally contains an additive, preferably a pigment, filler, photosensitizers, photostabilization, emulsifiers, special pigments for protection purposes.

4. Ink for gravure printing according to claim 1, in which the first binder is a water-soluble or dilutable with water urethaneacrylate oligomer.

5. Ink for gravure printing according to claim 1, in which the first binder is a water-soluble or dilutable with water epoxyacrylate oligomer.

6. Ink for gravure printing according to claim 1, in which the first binder is a water-soluble or dilutable with water galactically oligomer.

7. Ink for gravure printing according to claim 1, in which the first binder is a water-soluble or dilutable with water preferability oligomer.

8. Ink for gravure printing according to claim 1, in which the first binder is a mixture of water soluble or dilutable with water oligomers according to claims 4-7.

9. Ink for gravure printing according to claims 1 to 8, in which the viscosity of the composition at 40°C is from 12 to 40 PA·C, preferably from 15 to 30 PA·C.

10. Ink for gravure printing according to claims 1 to 8, in which the viscosity of the first binder at 40°C is from 5 to 40 PA·C.

11. Ink for gravure printing according to any one of claims 1 to 8, in which the molecular mass Mwfirst is th binder ranges from 1500 to 10000 g/mol.

12. Ink for gravure printing according to claim 1, in which the content of water-soluble or dilutable with water acrylate oligomers is from 30 to 70%, preferably from 40 to 60% and more preferably from 45 to 55%, based on the whole weight of the ink.

13. Ink for gravure printing according to claim 2, in which the content of water-soluble or dilutable with water monomers of polietilenglikolsuktsinata or polyethoxysiloxane of polytrichales is from 5 to 25%, preferably from 10 to 20% and more preferably from 10 to 15% (based on the whole weight of the ink.

14. Ink for gravure printing according to claims 1 to 3, in which photoinitiator is capable of initiating the radical polymerization reaction of the first binder and the second binder.

15. Ink for gravure printing according to 14, in which the specified photoinitiator selected from the group consisting of compounds of the type of acetophenone or benzophenone.

16. Ink for gravure printing according to item 15, in which the specified photoinitiator has a maximum absorption at a wavelength of from 300 to 450 nm.

17. Ink for gravure printing according to claim 3, in which the photosensitizer is chosen from the group thioxanthones composed of isopropylthioxanthone, 1-chloro-2-propositionthe, 2-chlorothioxanthone and 2,4-dietitican, and mixtures thereof.

18. Ink for gravure printing according to claim 3 in which add a UV stabilizer to prevent before the belt polymerization paint.

19. Ink for gravure printing according to claim 3, in which the pigment content is from 3 to 15%, preferably from 5 to 12% and more preferably from 7 to 10% (based on the whole weight of the ink.

20. Ink for gravure printing according to claim 3, in which the content of the filler is from 26 to 50%, preferably from 25 to 40% and more preferably from 25 to 35% (based on the whole weight of the ink.

21. Ink for gravure printing according to claim 20, in which the filler is a calcium carbonate selected from varieties with low oil absorption.

22. The method of producing inks for gravure printing, as claimed in claims 1 to 21, comprising the first binder selected from the group consisting of water-soluble or dilutable with water acrylate oligomers, urethaneacrylate oligomers, epoxyacrylate oligomers, acriluretanic oligomers and preferability oligomers; photoinitiator to initiate polymerization of the binder after irradiation by electromagnetic radiation or electron beams, optionally, additives such as pigment, filler, photosensitizers, photostabilization, emulsifiers, special pigments for the purposes of protection and adding a second binder is a water - soluble or dilutable with water monomers of polietilenglikolsuktsinata or polyethoxysiloxane of polytrichales to bring the viscosity of the composition on the values 7 up to 60 PA· C, preferably from 12 to 40 PA·and more preferably from 15 to 30 PA·s at 40°C.

23. Apply paint according to any one of claims 1 to 21 in the process of gravure printing, cured under the action of radiation using hybrid washing agent operation system, including water hybrid washing agent operation solution with a concentration of sodium hydroxide of from 0 to 0.5%, preferably from 0.1 to 0.3% and more preferably from 0.1 to 0.2%.

24. The method of application of curing under the action of radiation inks for gravure printing according to any one of claims 1 to 21 using hybrid washing agent operation system, which is the hybrid washing agent operation solution with a concentration of sodium hydroxide of from 0 to 0.5%, preferably from 0.1 to 0.3% and more preferably from 0.1 to 0.2%, and paint wastes, dissolved in hybrid washing agent operation solution, separated from hybrid washing agent operation solution by adding a solution of an inorganic salt of a halide or sulfate of metal.

25. The method according to paragraph 24, in which the precipitated dye, dispergirovannoyj in hybrid washing agent operation solution, printing machines for gravure printing, by adding a solution of an inorganic salt of a halide or sulfate of metal.

26. The method according A.25, which leads the hybrid washing agent operation temperature of the solution to a value of from 20 to 50°C, preferably from 20 to 40°and more preferably from 25 to 35°C.

27. A method of obtaining a fingerprint on the substrate by intaglio with use the of inks for gravure printing according to any one of claims 1 to 21, characterized in that the print on the specified substrate film of paint thickness of 20-60 μm, preferably 30-50 μm, and utverjdayut imprint by irradiation with electromagnetic radiation or an electron beam.

28. Securities containing the fingerprint obtained using the inks for gravure printing according to claims 1-21 and/or the method of obtaining a fingerprint method for gravure printing according to item 27.



 

Same patents:

FIELD: building industry.

SUBSTANCE: invention relates to manufacturing acryl resins-base building composition materials used in internal and external finishing of compartments of industrial and civil designation, in particular, in making pouring flooring covers, protective and finishing materials and pouring compounds. Acryl composition for finishing works comprising a binding agent, quarts sand as a filling agent, plasticizing agent, hardening agent and water involves 40-60% aqueous dispersion of copolymer of butylacrylate, methylmethacrylate and methacrylic acid as a binding agent, tributyl phosphate as a plasticing agent, Portland cement M400 as a hardening agent and, additionally, it comprises acryl-urethane thickening agent of associative type "Polifob TR-117" wherein components are taken in the following ratio, wt.-%: 40-60% dispersion of copolymer of butylacrylate, methylmethacrylate and methacrylic acid, 15.0-30.0; acryl-urethane thickening agent of associative type "Polifob TR-117", 0.1-0.2; quartz sand, 35.0-50.0; tributyl phosphate, 0.15-0.25; Portland cement M400, 8-12, and water, the balance. The composition can comprise additionally pigment in the amount up to 11 wt.-%. Invention provides enhancing mechanical strength of cover, its adhesion to surface and decreasing water absorption.

EFFECT: improved and valuable technical properties of composition.

2 cl, 2 tbl

FIELD: production of paint and varnish materials.

SUBSTANCE: invention relates to producing aqueous-dispersion dyes designated for external and internal staining. Invention describes an aqueous-dispersion dye for preparing high-elastic cover comprising an aqueous plasticized acrylic dispersion "Finndisp A-6000" based on copolymer of n-butylacrylate with styrene as acrylic film-forming agent, carbonate filling agent, titanium dioxide as pigment, polymeric associative thickening agent "Akvaflov NLS" based on hydrophobizated polyester polyacetal as a thickening agent, sodium tripolyphosphate and additive "Agapol RA40" based on polycarboxyl polymer ammonium salt as a disperser, additive BIK-037 as a froth breaker representing an aqueous emulsion of mixture of mineral oil, paraffin and silicon, antiseptic "Neomid 220" based on iodine-derivative compounds as a biocide additive, water, and dye comprises additionally rheological additive "BIL-380" based on acrylic polymer as additive for pouring wherein all components are taken in the definite ratio. Invention provides stability of dye in storing, formation uniform paints covering covers with high elastic properties promoting to high stability for evaporation and longevity.

EFFECT: improved and valuable properties of dye.

1 tbl

FIELD: production of paint and varnish materials.

SUBSTANCE: invention relates to producing aqueous-dispersion dyes designated for external and internal staining. Invention describes an aqueous-dispersion dye for preparing high-elastic cover comprising an aqueous plasticized acrylic dispersion "Finndisp A-6000" based on copolymer of n-butylacrylate with styrene as acrylic film-forming agent, carbonate filling agent, titanium dioxide as pigment, polymeric associative thickening agent "Akvaflov NLS" based on hydrophobizated polyester polyacetal as a thickening agent, sodium tripolyphosphate and additive "Agapol RA40" based on polycarboxyl polymer ammonium salt as a disperser, additive BIK-037 as a froth breaker representing an aqueous emulsion of mixture of mineral oil, paraffin and silicon, antiseptic "Neomid 220" based on iodine-derivative compounds as a biocide additive, water, and dye comprises additionally rheological additive "BIL-380" based on acrylic polymer as additive for pouring wherein all components are taken in the definite ratio. Invention provides stability of dye in storing, formation uniform paints covering covers with high elastic properties promoting to high stability for evaporation and longevity.

EFFECT: improved and valuable properties of dye.

1 tbl

FIELD: spatial material science and optical engineering.

SUBSTANCE: invention is designed for use in system of passive thermoregulation of spatial apparatuses for manufacturing cold-drying coatings of class "sun reflectors", which are applied onto outer surfaces of spatial apparatuses. Composition according to invention comprises: 9.49-9.54 wt parts amide-containing acrylic resin as binder; 52.36-52.49 wt parts monocrystalline superfine white-colored powder of zinc-gallium oxide with calculated formula ZnGaO1+n, wherein n=0.0064, and molecular mass 81.38; and 37.99038.15 wt parts solvent: xylene/butanol mixture at ratio 4:1; provided that binder-to-filler ratio is 1:5.5 and fraction of nonvolatile substances is 58.0% maximum.

EFFECT: preserved high optical characteristics of coating during prolonged operation of spatial apparatus.

3 cl, 1 dwg, 3 tbl

FIELD: production of paint-vehicle composition of cold and hot drying.

SUBSTANCE: claimed composition contains 44 % acryl polymer in solvent as film forming agent; 40 % acryl latex as thickener; 25 % ammonia aqueous solution as medium pH adjusting agent; solution of isothiasoline derivatives such as 1,2-hydroxy-5,8,11-trioxadodecane, 1,3-bis(hydroxymethyl)-urea, 1,6-hydrohy-2,5-dioxyxexane as conserving agent; emulsion of ether and siloxane copolymer in fumigated silica as antifoaming agent; water as solvent; and additionally ethanol in specific component ratio. Obtainer film has impact strength of 60-63 cm and desiccation time at (20±2)°C is 3-5 min and at (60±5)°C is 13-15 s.

EFFECT: composition for film formation having improved impact strength.

2 tbl, 10 ex

FIELD: polymer materials and road marking.

SUBSTANCE: invention relates to compositions of thermoplastic mastic designed for marking bituminous concrete pavements. Thermoplastic mastic comprises film-forming butyl methacrylate/methacrylic acid/styrene terpolymer having acid number 6.0-9.0 mg KOH/g, softening temperature 90-112°C, and relative viscosity of 2% solution in butyl acetate 1.4-1.8; titanium dioxide; mineral fillers: mixture of quartz sand with fractioned micro-marble; lighting additives: mixture of glass microbeads with organic optical bleacher; plasticizer: mixture of dibutyl o-phthalate with colophony pentaerythritol ether having acid number not higher than 12.0 mg KOH/g and softening temperature not below 90°C; all taken in specified proportions.

EFFECT: reduced dirt retention level of highway strips.

2 tbl

FIELD: polymer materials and road marking.

SUBSTANCE: invention relates to compositions of thermoplastic mastic designed for marking bituminous concrete pavements. Thermoplastic mastic comprises film-forming butyl methacrylate/methacrylic acid/styrene terpolymer having acid number 6.0-9.0 mg KOH/g, softening temperature 90-112°C, and relative viscosity of 2% solution in butyl acetate 1.4-1.8; titanium dioxide; mineral fillers: mixture of quartz sand with fractioned micro-marble; lighting additives: mixture of glass microbeads with organic optical bleacher; plasticizer: mixture of dibutyl o-phthalate with colophony pentaerythritol ether having acid number not higher than 12.0 mg KOH/g and softening temperature not below 90°C; all taken in specified proportions.

EFFECT: reduced dirt retention level of highway strips.

2 tbl

FIELD: binding agents.

SUBSTANCE: invention describes a binding agent based on an aqueous basis consisting of: (a) acrylic copolymer an aqueous dispersion comprising functional groups of carboxylic acid and ethyleneurea with average molecular mass below 200000Da and value Tglass < -15°C. This acrylic copolymer can be prepared from acrylic and/or methacrylic acid alkyl and/or cycloalkyl ester with ethylene unsaturated group or its anhydride, compound with ethylene unsaturated group comprising functional groups ethyleneurea of the formula: , and optionally vinyl monomers and/or halides, or nitriles with olefin unsaturated group, and (b) water-soluble complex of transient metal wherein transient metal is represented by zinc and wherein the ratio of transient metal mole number in the complex to the total mole number of carboxyl groups in copolymer is from 1:1 to 1:8 but preferably from 1:2 to 1:4. Also, invention describes a covering composite prepared from the described composition of binding agent and wood as a basis covered by a covering composite. Proposed covering composite and coatings with this composition of a binding agent possess the excellent strength and good flexibility. These coatings show the property for prevention of tannins migration from the tannin-containing wood basis.

EFFECT: improved and valuable properties of composition.

9 cl, 11 ex

FIELD: motor car industry; methods of production of the coating compositions based on the dissolvent.

SUBSTANCE: the invention is pertaining to the method of production of the coating composition on the basis of the dissolvent and its application for the repeated motor car surface finishing. The method of production of the composition of the coating on the basis of the dissolvent provides for mixing: A) at least one toning base containing acrilycpolyol, the cellulose resin, polyesterpolyol and pigment, B) at least one banding base containing at least one resin compatible with the resins indicated in the toning base a), and C) at least one diluting base containing dissolvent and free from resins and pigments base. The method of renewal of the motor car includes production of the composition for the base coating and usage the base composition this way for the base coating. The method of renewal of the motor car includes production of the composition for the internal coating and its usage for application of the internal coating. The invention allows to avoid such shortcomings as insufficient mode{method} of renewal of the truck, engages production of a composition for a heartwood coating and utilization, thus, the received composition. The invention allows to avoid such lacks{limitation}, as the insufficient covering ability, the high sensitivity for fogging and the loose of brightness or the color. The coating composition ensures the very flexible spot of application.

EFFECT: the coating composition ensures the very flexible spot of application.

12 cl, 15 ex

FIELD: varnish-and-paint industry.

SUBSTANCE: field of invention is water-dispersed paints based on acrylic latexes. Invention provides a water-dispersed paint containing, as film-forming substance, styrene/acrylic acid asters copolymer or styrene/acrylic acid copolymer, titanium dioxide and colored pigments, chalk or talc, polyoxyethylated alkylphenol ether, thickening agent: rarely cross-linked copolymer of butyl acrylate, methacrylic acid, and styrene or methylolacrylamide, sodium polyphosphate as dispersant, foam suppressor, preservative, 25% ammonia aqueous solution, ethylene glycol as antifreeze, water, and additionally: butyldiglycol acetate (coalescent), optical bleacher, light stabilizer, and light sensitizer, all components at specified proportions.

EFFECT: enhanced atmosphere resistance, light resistance, and stability of coloristic characteristics.

5 cl, 2 tbl

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

The invention relates to the field of compositions for coating, namely fluorescent stamp mastics for the application of texts or images on solid media, preferably pulp and paper, and can be used when drawing text and/or images special stamp mastic, preferably in the form of seals, for the protection of paper-based information from a fake
The invention relates to the field of compositions for coating, namely fluorescent stamp mastics for the application of texts or images on solid media, preferably pulp and paper, and can be used when drawing text and/or images special stamp mastic is preferably in the form of seals for the protection of paper-based information from a fake

Printing ink // 2179565
The invention relates to the printing industry, namely, printing ink for screen printing, used for preparation of luminous scales, indicators, signs, used in low light conditions, for example, during the evacuation of people from the building during a fire or any other emergency in the dark
The invention relates to the development of counterfeit-protected inks for inkjet printing methods that can be used to make important business documents

The invention relates to the field of printing industry and is intended to receive paint, mainly metallographic used for printing on paper

The invention relates to the field of printing, in particular to water-based printing inks for paper-based texture imitation of the pores of the wood used in the manufacture oblivioni film for furniture

FIELD: printing industry.

SUBSTANCE: member has strip having polymer film layer bearing at least one opaque layer of optical density greater than 1.5 having images and/or symbols and/or signs cut out and at least one semitransparent layer of optical density less than 1.5. The semitransparent layer has optical density varying in length and/or width according to a predefined rule to let optical density in opaque layer cuts vary.

EFFECT: enhanced effectiveness in protecting products against falsification.

14 cl, 2 dwg

Up!
COD [mg O2·l-1]Sample GSample JSample
NaCl, 10%1070075305650
CaCl2that 10%1060074906490
FeCl3that 10%1067075307600
Al2(SO4)3that 10%1057074406940