Non-aqueous ink composition for jet printing

FIELD: chemistry.

SUBSTANCE: invention relates to jet printing inks, particularly non-aqueous inks for jet printing. The ink for jet printing contains a pigment, binder, polyetheramide resin as a pigment dispersant, an organic solvent and an anti-corrosion agent from an imidazole group or a group of volatile anti-corrosion agents, preferably dicyclohexylamine or cyclohexylammonium cyclohexylcarbamate.

EFFECT: disclosed inks have high dispersion stability and prevent corrosion of print heads of jet printers and nozzle clogging.

8 cl, 8 tbl, 34 ex

 

The technical field

This invention relates to a nonaqueous ink composition for ink-jet printing and, more specifically, to non-aqueous ink composition for inkjet printing, which does not clog the nozzle in the printhead of the printer when printing using an inkjet printer and provides high stability of the ink for printing with high quality. Known many ink formulations based pigments for inkjet printing using different solvents. However, during printing, these structures on the basis of the pigments have a tendency to clogging of the nozzles in inkjet printers, resulting in prints with degraded print quality. In addition, the prints obtained by use of such ink formulations pigment-based, does not necessarily have a sufficient brightness of the image.

In particular, the ink formulations using strong organic solvents, acidic or basic pigments and other additives, can corrosivity nozzle printhead, which is the main cause of clogging of the nozzle.

In L1 (JP-A-2005-23099) described a method of preventing the corrosion of the electrodes mounted on the piezoelectric element by using the ink composition containing ethanolamine. However, when added to the ink, these anti-corrosive agents can cause coagulation of pigments or resins dispersed through the data in the ink, and clogging of the nozzle during prolonged storage. Therefore, these inks have low stability of the dispersion.

The invention

This invention was created to solve these problems, respectively, the purpose of this invention is to create a non-aqueous ink composition for inkjet printing, which prevents corrosion printhead inkjet printer that allows you to avoid clogging of the nozzle, and which is characterized by high stability of the dispersion.

Trying to solve the problem, the inventors have found that an effective non-aqueous ink composition for inkjet printing can be obtained by adding to the ink anti-corrosive agent such as an imidazole compound, and volatile anti-corrosive agent. This formed the basis of this invention.

According to this invention provides a nonaqueous ink composition for inkjet printing, which contains pigment, resin, agent for dispersing the pigment and an organic solvent together with an anticorrosive agent.

The use of non-aqueous composition for ink-jet ink can not only prevent corrosion of the printheads of an inkjet printer, in order to avoid clogging of the nozzle, but also to ensure high stability of the dispersion.

The detailed description of embodiments of the invention

The lower the non-aqueous ink composition for inkjet printing will be described in detail.

It is necessary that the nonaqueous ink composition for ink-jet printing contains a pigment, a resin, agent for dispersing the pigment, organic solvent and anti-corrosive agent such as an imidazole compound, and a volatile corrosion inhibitor.

The above components of the nonaqueous ink composition for inkjet printing will be described below.

The pigments used in the nonaqueous ink composition for inkjet printing, include the following pigments:

Pigment yellow 12, 13, 14, 17, 20, 24, 31, 55, 74, 83, 86, 93, 109, 110, 117, 120, 125, 128, 129, 137, 138, 139, 147, 148, 150, 151, 153 (yellow Nickel complex-based Nitron), 154, 155, 166, 168, 180, 181, 185;

Pigment orange 16, 36, 38, 43, 51, 55, 59, 61, 64, 65, 71;

Pigment red 9, 48, 49, 52, 53, 57, 97, 122 (genocidally Magenta), 123, 149, 168, 177, 180, 192, 202, 206, 215, 216, 217, 220, 223, 224, 226, 227, 228, 238, 240, 244, 254;

Pigment violet 19 (genocidally Violet) 23, 29, 30, 32, 37, 40, 50;

Pigment blue 15 (phtalocyanine Blue), 15: 1, 15: 3, 15: 4, 15: 6, 32, 30, 64, 80;

Pigment green 7 (chlorinated phtalocyanine Green), 36 (octabromodiphenyl phtalocyanine Green);

Pigment brown 23, 25, 26;

Pigment black 7 (Carbon Black), 26, 27, 28.

The titanium oxide, iron oxide, ultramarine, chrome yellow, zinc sulfide, cobalt blue, barium sulfate and calcium carbonate.

The titanium oxide may be titanium dioxide, commonly used in paints, and can be either in the anatase form, or in rutile crystal is practical form. Rutelinae form is preferred due to its weather resistance. Although the pigment is added in any quantity, which is determined depending on the type of pigment and other factors, it is usually introduced in an amount of from 0.1 to 20 wt%. and preferably in quantities of from 0.5 to 10 wt%. based on the weight of the ink composition. When the pigment is a titanium oxide, it is preferably added in an amount of from 1.0 to 20.0% by weight. and more preferably in quantities of from 3.0 to 15 wt%. based on the weight of the ink composition. If the amount of titanium dioxide of less than 1.0 wt%, the opacity of the ink composition is reduced.

If the amount of titanium oxide is more than 20 wt%, the titanium dioxide precipitates, causing clogging of the nozzle. While the average particle size of the pigment is preferably in the range from 50 to 400 nm and more preferably in the range from 80 to 300 nm, the average particle size of titanium dioxide is preferably from 100 to 400 nm and more preferably from 150 to 300 nm. If the average particle size greater than 400 nm, the pigment may be deposited, causing clogging of the nozzle. If the average particle size of less than 50 nm, then reduced the opacity of the pigment. There may be other disadvantages.

As in the case of the conventional ink formulations, non-aqueous ink composition for inkjet printing as a binder contains a resin. Although this resin can is to be any, used in conventional ink compositions, particularly preferably, the ink composition according to the invention contains any one of the polyester resins, acrylic resins and polyvinyl chloride to improve the adhesion to the substrate during printing.

Polyester resin may be either a saturated polyester resin, or unsaturated polyester resin. Polyester resin will receive the condensation reaction between a polybasic acid and polyol. Examples of the polybasic acid to obtain a polyester resin include the following acids:

aromatic dicarboxylic acids such as phthalic acid, isophthalic acid, terephthalic acid, 1,5-natalijagolosova acid, 2,6-natalijagolosova acid, 9,10-antratziklinova acid and digenova acid;

aromatic hydroxycarboxylic acids such as succinic acid, adipic acid, azelaic acid, sabotinova acid and dodecadienol acid;

aliphatic unsaturated polycarboxylic acids such as fumaric acid, raspberry acid, taconova acid, musicanova acid, cyclohexanecarbonyl acid, dimeric acid, trimeric acid and tetramer acid;

aliphatic dicarboxylic acids such as hexahydrophthalic acid and tetrahydrophtalic acid; and polycarboxylic acids such as trim the lithium acid, tremezzina acid and pyromellitate acid.

In addition, the polybasic acid can be together with a monobasic acid. Examples of such monobasic acids include benzoic acid, chlorbenzoyl acid, bramantino acid, para-hydrobenzoic acid, tert. butylbenzoic acid, naphthaleneboronic acid, 3-methylbenzoic acid, 4-methylbenzoic acid, salicylic acid, thiosalicylic acid, phenylacetic acid, naphthaleneboronic acid, antratsenovoe acid, tert. butylnaphthalene acid and cyclohexanecarbonitrile acid.

Examples of polyols to obtain polyester resin include the following polyols:

Aliphatic diols such as ethylene glycol, propylene glycol, 1,3-propandiol, 2,3-butanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, neopentylglycol, diethylene glycol, dipropyleneglycol, 2,2,4-trimethyl-1,3-pentanediol, polyethylene glycol, polypropyleneglycol, polytetramethylene;

Aliphatic polyols, including trioli and tetraol, such as trimethylated, trimethylolpropane, glycerol and pentaerythritol;

Aliphatic polyols such as 1,4-cyclohexanediol, 1,4-cyclohexanedimethanol, Spiro-glycol, bisphenol a, hydrogenated bisphenol a, tricyclodecane and tricyclodecane; and

Aromatic polyols, such as PA is axerophthol, meta xianglian, ortho-xianglian and 1,4-penlington.

The polyol may be a monohydroxy alcohol.

The polyester resin used according to the invention, preferably has srednetsenovoj molecular weight ranging from 1000 to 50000, and more preferably in the range from 2000 to 20000. If srednetsenovoj molecular weight polyester resin is less than 1,000, then the ink film becomes less resistant to the action of ethanol. If srednetsenovoj molecular weight polyester resin of more than 50,000, the ink becomes more viscous and therefore their separation difficult.

The acrylic resin may be a copolymer commonly used monomers capable of polymerization.

Examples of such polymerizable by a radical mechanism monomers include the following compounds:

esters of acrylic acid such as methyl acrylate, acrylate, isopropylacetate, n-butyl acrylate and 2-ethyl hexyl acrylate;

esters of methacrylic acid such as methyl methacrylate, ethyl methacrylate, isopropylacetate, n-butylmethacrylate, isobutylacetate, tert. butylmethacrylate, cyclohexylmethyl and 2-ethylhexylacrylate;

aromatic vinyl monomers such as styrene, vinyltoluene and α-methylsterol;

vinyl esters such as vinyl acetate and finalproject;

heterocyclic vinyl compounds such as vinile religon;

vinilhloridnye compounds such as vinyl chloride, vinylidenechloride and vinylidenefluoride;

vinyl ethers, such as ethylenically ether and isobutylphenyl ether; and

α-olefins such as ethylene and propylene.

In addition, polymers of acrylic acid can be obtained with the use of polymerizable monomers containing functional groups, including acids and bases. Examples of such monomers containing functional groups include the following compounds:

monomers containing carboxyl groups such as acrylic acid, methacrylic acid, maleic acid, fumaric acid, taconova acid, mono - N. butylmalonate, mono - called butylfuran, mono - called butylmalonate and crotonic acid;

esters of (meth)acrylic acid containing a hydroxyl group such as 2-hydroxyethyl(meth)acrylate, 2-hydroxypropyl(meth)acrylate, 3-hydroxypropyl (meth)acrylate, 4-hydroxybutyl(meth)acrylate, (2-hydroxymethyl)acrylate, (2-hydroxymethyl)butyl acrylate, (4-hydroxymethylcellulose)-methyl(meth)acrylate, glycerion(meth)acrylate, 2-(meth)acrylonitril-2-hydroxypropionate and 2-hydroxy-3-phenoxypropan(meth)acrylate;

monomers containing amide groups such as acrylamide, methacrylamide, amide maleic acid and diacetonitrile;

monomers containing Picadilly groups who, such as glycidylmethacrylate and allylglycidyl ether;

monomers containing ceanography, such as Acrylonitrile and Methacrylonitrile;

diene, such as butadiene and isoprene; allyl compounds containing hydroxyl groups, such as allyl alcohol and 2-hydroxyethylcellulose ether;

monomers containing tertiary amino groups, such as dimethylaminoethylmethacrylate and diethylaminoethylmethacrylate; and

monomers containing alkoxysilyl groups, such as VINYLTRIMETHOXYSILANE, vinyltriethoxysilane, VINYLTRIMETHOXYSILANE, vinyl-Tris(β-methoxyethoxy)silane, wikimediamessages, vinylpyridinium, vinylimidazole, vinylimidazole, 3-methacryloxypropyl trimethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropyl metaldimension and 3-methacryloxypropyltrimethoxysilane.

You can also apply monomers containing two or more unsaturated bonds in the molecule, such as diallylphthalate, divinylbenzene, allylacetate, trimethylolpropane. These monomers can be used individually or in combination of two or more monomers.

You can apply a number of vinylchloride resins, including copolymers of vinyl chloride with vinyl acetate, vinylidenechloride, acrylic maleic acid and other monomers. Preferred Winnie the chloride resins are copolymers of vinyl chloride with vinyl acetate, especially with a molecular weight of 30000 or less.

You can also use any other resins commonly used in a typical ink formulations. Examples of such resins include amino, epoxy resin, phenol resin, Novolac resin, a modified phenol resin, melamine resin and benzoguanamine resin, polyamide, cellulose ether, such as cellulose diacetate, cellulose triacetate, nitrocellulose, cellulose nitrate, cellulose propionate and acetobutyrate cellulose, ethers of cellulose, such as methylcellulose, ethylcellulose, benzyltoluene, criticalmoose, lunatically, carboxymethylcellulose, karboksimetilcelljuloza and aminocellulose. These resins may be used in combination.

Non-aqueous ink composition for inkjet printing according to the invention preferably contains a resin as described above, in an amount of from 1 to 20 wt%. and more preferably in an amount of from 1 to 10 wt%. based on the weight of the ink composition. If the amount of resin is less than 1 wt%, then the adhesion to the substrate may be insufficient, and the resin is more than 20 wt%. may adversely lead to an increase in the viscosity of the ink composition, which causes unstable flow structure.

In the nonaqueous ink composition for ink-jet printing is used agent for dispersing pigments to improve their dispersable the tee.

Such agent for dispersing pigments may be any agent that is commonly used for dispersion of pigments, including polyamides, esters of carboxylic acids containing hydroxyl groups, salts of long-chain polyaminoamide with high molecular weight acid esters, salts of long-chain polyaminoamide with high molecular weight polycarboxylic acids, salts of long-chain polyaminoamide with polar acid esters, high-molecular esters of unsaturated acids, modified polyurethanes, modified polyacrylates, anionic surfactants of the polyester type, a salt of a condensate of naphthalenesulfonate with formalin, salt of a condensate of aromatic sulfonic acids with formaldehyde, esters polyoxyethylenesorbitan acid, polyoxyethylenesorbitan esters and stearylamine.

Agent for dispersing the pigment in the nonaqueous ink composition for inkjet printing according to this invention preferably is polyetherimide containing two or more amide groups in the molecule and having srednetsenovoj molecular weight of from 700 to 1500. The number of agent for dispersing the pigment may vary depending on the type of pigment and is preferably in the range from 0.1 to 15 wt.% and more preferably in predlahat 0.5 to 10 wt.% to improve the dispersive ability of the pigment of the pigment.

Polyetherimide get a complex interaction of polyester with terminal acid groups with polyamines containing two or more amino groups in the molecule. Examples polyetherimides include Solsperse 3200, Solsperse 32500, Solsperse 32600, Solsperse 33500, Solsperse 34750, Solsperse 35100 and Sosperse 37500, each of which is Lubrizol Corporation, and BYK 9077, produced by BYK Japan.

Polyetherimide containing at least two amide groups in the molecule, lead to limited dispersive ability of the pigment pigments, therefore, are not preferred. Polyetherimide with an average molecular weight of less than 700 lead to limited dispersive ability of the pigment pigments and polyetherimide with srednekislovsky molecular weight of more than 15,000 worse dispersed in the ink, therefore, are not preferred.

Non-aqueous ink composition for inkjet printing according to the invention uses an organic solvent commonly used in a typical ink formulations.

Examples of organic solvents include the following:

alcohols such as methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, botilony alcohol, tridecylamine alcohol, cyclohexyloxy alcohol and 2-methylcyclohexylamine alcohol;

glycols, such as ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropyleneglycol and glycerin;

ethers of glycols, such commonality ether of ethylene glycol, monotropy ether of ethylene glycol, monobutyl ether of ethylene glycol, diethyl ether of ethylene glycol, dimethyl ether of ethylene glycol, onomatology ether of diethylene glycol, monotropy ether of diethylene glycol, monobutyl ether of diethylene glycol, utilmately ether of diethylene glycol, dimethyl ether of diethylene glycol, diethyl ether of diethylene glycol, disutility ether of diethylene glycol, onomatology ether of propylene glycol, monotropy ether of propylene glycol, monobutyl ether of propylene glycol, onomatology broadcast dipropyleneglycol, monotropy broadcast dipropyleneglycol, dimethyl ether of propylene glycol, dimethyl ether of dipropyleneglycol, diethyl ether of propylene glycol, diethyl ether of dipropyleneglycol, monomethylether of ethylene glycol, monoethylether of ethylene glycol, monobutylether of ethylene glycol, monomethylether diethylene glycol, monomethylether of ethylene glycol, monoethylfumarate of ethylene glycol, monobutylether of ethylene glycol monomethylfumarate propylene glycol, monoethylfumarate propylene glycol, monoethylether diethylene glycol, monobutylether diethylene glycol and monobutyl ether of triethylene glycol;

esters, such as ethyl acetate, isopropylacetate, n-butyl acetate, mutilated, ethyllactate and butylacetate;

ketones, such as acetone, methyl ethyl ketone, methyl isobutyl ketone,cyclohexanone, isophorone and datetoday alcohol; and

toluene, xylene, acetonitrile, γ-butyrolactone, γ-valerolactone and nitrogen-containing compounds such as N-methyl-2-pyrrolidone and N-ethyl-2-pyrrolidone.

These solvents are selected according to the criteria of compatibility with the characteristics of the printhead nozzles during printing, security and the ability to drying. You can, if desirable, to use mixtures of solvents.

According to this invention, the nonaqueous ink composition for inkjet printing preferably contains as the organic solvent ether glycol. Along with other these glycol ethers are especially preferred due to its high solubility in HP printheads, high ink adhesion to non-absorbent substrates, such as plastics, and good vydyhaemoy: onomatology ether of diethylene glycol, monobutyl ether of diethylene glycol, utilmately ether of diethylene glycol, diethyl ether of diethylene glycol, disutility ether of diethylene glycol, onomatology broadcast dipropyleneglycol, dimethyl ether of dipropyleneglycol, monomethylfumarate propylene glycol, monoethylfumarate diethylene glycol and monobutylether diethylene glycol.

Non-aqueous ink composition for inkjet printing according to the invention contains volatile anti-corrosive agent or anti-corrosive agent, such the AK imidazole compounds and therefore does not cause clogging of nozzles of printheads during printing to an inkjet printer that provides high quality printing stamps.

The nozzle printheads affected inks can corrode under the action of organic solvents and pigments contained in the ink. This often happens in a clogged nozzle. The addition of anti-corrosive agents to the ink can prevent the corrosion of the nozzle, which can cause clogging and poor print quality. Anti-corrosive agents also provide high stability of the dispersion.

Examples of volatile anti-corrosive agent, one of the anticorrosive agent used according to the invention include amines, such as carbonate dicyclohexylamine, nitrite dicyclohexylamine, dicyclohexylamine, laurate of cyclohexylamine, benzoate of cyclohexylamine, the carbamate of cyclohexylamine (SNA), benzoate of cyclohexylamine (SLEEP•VA), the carboxylate of cyclohexylamine (SNA•SNA), the acrylate of cyclohexylamine (SLEEP•AA), carbonate of cyclohexylamine (JV-C) and cyclohexylamine;

Kaprilat of cyclohexylamine, nitrite Diisopropylamine, laurate of dicyclohexylamine, the carbamate of cyclohexylamine, benzoate of ammonium, nitrite of dicyclohexylamine (DICHAN), salicylate of dicyclohexylamine (DICHA•SA)benzoate dicyclohexylamine is I (DICHA•VA), nitrite of Diisopropylamine (DIPAN), nitrite of nitronaphthalene (NITAN), kaprilat of dicyclohexylamine, cyclohexanecarboxylate of dicyclohexylamine (DICHA•SNA), the acrylate of dicyclohexylamine (DICHA•AA), carbonate of cyclohexylamine, kaprilat of dicyclohexylamine and laurate of cyclohexylamine. Of these compounds dicyclohexylamine and cyclohexylcarbonyl cyclohexylamine effectively prevent corrosion of heads and therefore are preferred.

Examples of imidazole compounds, which other anti-corrosive agents according to the invention include imidazole, 2-Mei, 2-ethyl-4-Mei, benzimidazole, 2-phenyl-benzimidazole, 2-mercaptobenzimidazole, 2-phenylimidazole, 2-phenyl-4-Mei, 1-benzyl-2-Mei, nattokinase, 1-cyan-ethyl-2-Mei, 1-amino-ethyl-2-Mei, 2,4-diamino-6-(2-undecyl-1-imidazolidinyl)-1,3,5-triazine and 2-phenyl-4-methyl-5-hydroxymethylimidazole. Of them imidazole, 2-Mei, benzimidazole and 2-ethyl-4-Mei can effectively prevent the corrosion of heads and therefore are particularly preferred.

The above anticorrosive agents can be used individually or in combination, the total number of anti-corrosion agents preferably ranges from 0.01 to 5 wt%, more preferably in the range from 0.05 to 30 wt%. and even more preferably in the range from 0.1 to 1.0 wt%. based on the weight of the ink composition.

The ink composition containing less than 0.01 wt%. anti-corrosion agents, can clog the nozzle, while the ink composition containing more than 5.0 wt.% anti-corrosive agents, can have an undesirable high viscosity due to the aggregation of pigments.

Preferably, the aqueous extracts of the non-aqueous ink composition for inkjet printing had a pH value in the range from 6.0 to 10.0 to prevent clogging of the nozzle during printing and high quality printing. If the pH value of aqueous extracts less than 6,0, printhead more corrosion occurs clogging of the nozzle and is broken seal. If the pH is greater 10,0, the ink becomes more viscous due to aggregation of the pigments. Particularly preferably, aqueous extracts had a pH value between 6.5 to 8.5.

The pH value is measured as follows. To obtain the aqueous extracts of the ink composition 1 g of the composition is added to 100 g of distilled water, the mixture was mixed thoroughly and allow it to stand for a specified time. The pH of the obtained aqueous extracts was measured using a pH meter. The pH value of aqueous extracts of the ink composition may have a pH from 6.0 to 10.0, this value is controlled by the amount of corrosion of AG is NTA, added to the ink.

Depending on the destination non-aqueous ink composition for inkjet printing according to the invention can be used together with additives, such as dyes, surfactants, UV absorbers, photostabilizers, antioxidants and plasticizers.

Non-aqueous ink composition for inkjet printing according to this invention can be used in inkjet printers of any type, including printers controlled ink and printers in which the ink is distinguished by a stream on demand.

Nonaqueous ink composition according to this invention is particularly suitable for use in large inkjet printers that use large formats, for example in inkjet printers designed to print on displays and other products for external use.

Non-aqueous ink composition for inkjet printing provides high contrast with the color graphics printing and video, resulting in greatly improved the reproducibility of images.

The surface, on which were printed the image (ink composition for inkjet printing) using an inkjet printer, dried at room temperature or at temperatures up to several hundred degrees Celsius with the formation of the dried film. The substrate, on which shall be printed and what the considerations applying can be any substrate that is not deformed or does not change its properties during the drying conditions of prints (ink composition), including metals, glass and plastics. More specific examples of substrates include sheets coated with resin or sheets of paper and plastics.

Examples

The invention will be described hereinafter in the examples and comparative examples. Hereinafter, "parts" and "%" are listed by weight.

Examples 1-1 - 1-34 and comparative examples 1-1 to 1-5.

Mixtures containing various ingredients listed in Tables 1-4 parts by weight, mixed, each in a sand mill for 3 hours, obtaining the compositions of examples 1-1 - 1-34 and comparative examples 1-1 to 1-5.

This used the following pigments:

MONARCH 1000 (produced by Cabot Corp.), which soot;

FASTOGEN Super Magenta RG (produced by DIC Co., Ltd), which chinaredorbit pigment Magenta;

Irgalite Blue 8700 (produced by Chiba Speciality Chemicals Corp.), which phtalocyanines blue;

E4GN-GT (produced by LANXESS K.K.)which is a complex of Nickel and a yellow pigment; and

TR 92 (TIOXIDE), which is the oxide of titanium.

We used the following resins:

VYLON GK 810 (production TOYOBO Co. Ltd., with srednekislovsky molecular weight equal to 6000, Tg=46°C, acid number=5 mg KOH/g, hydroxyl number=19 mg KOH/g), which is a complex polyester;

DYNAL MB 2660 (MITSUBISHI RAYON Co., Ltd., with srednevekovym molecular weight equal to 65000, Tg=52°C, acid number=3 mg KOH/g), which is an acrylic resin; and

SOLBIN CL (production Nissin Chemical industry Co., Ltd., copolymer of vinyl chloride with vinyl acetate, srednetsenovoj molecular weight =25000, Tg=70°C).

We used the following volatile anti-corrosive agents:

Dicyclohexylamine (D-CHA-T, production of New Japan Chemical Co., Ltd.); and

Cyclohexylcarbamate of cyclohexylamine (VERZONE Crystal # 130, the production of Daiwa Fine Chemicals Co., Ltd.

Agent for dispersing the pigment consisted of:

SOLSPERSE 32000 (manufactured Lubrizol Corporation, solid content=100%, srednetsenovoj molecular weight =1500), which polyetherimide resin A; and BYK 9077 (manufactured by BYK-Japan, the content of solids =99%, srednetsenovoj molecular weight =1400), which polyetherimide resin Century

Each of the ink compositions according to examples 1-1 - 1-34 and comparative examples 1-1 to 1-5 was tested, was determined viscosity, average particle size, pH of aqueous extracts, the stability of the dispersion and stability when exiting from a nozzle in accordance with the following methods and criteria.

The viscosity measurement

The viscosity of the ink composition was measured at 20°C using a viscometer of type C.

The measurement of average particle size.

The average particle size (D50) of the pigment in the ink composition was measured using laser diffraction cha is TIC (analyzer SALD-7000"), produced by Shimadzu Corporation).

The pH value of aqueous extracts.

The pH value of aqueous extracts of the ink composition was measured as follows. Using a separating funnel 1 g of each ink composition was added dropwise to 100 g of distilled water. The mixture was thoroughly stirred and allowed it to stand for a certain period of time. The resulting aqueous extracts (lower layer) was separated and measured the pH-value pH-meter at 20°C.

The stability of the dispersion

Each ink composition was stored in an airtight container at 60°C for 1 month. Then the composition was discharged from the container and measure its viscosity and the particle size was measured as described above. Change the two properties were evaluated according to the following scale:

And the Change in viscosity and particle size is within ±5%;

In: At least one change (viscosity and particle size) exceeds ±5% and ±10% or less; and

With: At least one specified change exceeds ±10%.

The stability of the output ink from nozzles

Each ink composition was used to print images on PVC substrate using an inkjet printer large format. Printing was carried out for 8 h and the printer kept in working condition at 40°C, relative humidity is 65% within 1 week. The state prints osmate the Ali before and after aging in an unusable state, and calculated the percentage of impressions after exposure printer inoperative in relation to the prints to aging in an unusable state. Yield stability of ink from the nozzle was evaluated according to the following scale:

A: 90% of the printed characters were printed accurately in a predetermined position;

In: from 80% to less than 90% were printed accurately in a predetermined position;

To: from 20% to less than 70% of the printed characters were distorted and

D: 70% or more characters were distorted.

The measurement results and scores are shown in Tables 1-4 below.

Table 1
The ink compositionExamples
1-11-21-31-41-51-61-71-81-91-101-11
PigmentsSoot3.03.03.0
Genocidally Magenta3.03.03.0
Phtalocyanine blue3.03.03.0
Nickel complex yellow3.03.0
Oxide titanium
ResinComplex polyester3.03.03.03.0
Acrylic resin3.03.03.03.0
Polyvinyl chloride3.03.03.0
Organic the ski solvents Utilmately ether of diethylene glycol77.077.077.077.077.077.077.077.077.077.077.0
Diethyl ether of diethylene glycol
Onomatology broadcast dipropyleneglycol
γ-butyrolactone14.014.014.014.0 14.014.014.014.014.014.014.0
Isophorone
Volatile anti-corrosive agentsDicyclohexylamine0.50.50.50.50.50.50.50.50.50.50.5
Cyclohexylcarbamate
Cyclohexylamine
Agents for dispergirovanija pigmentPolyetherimide And2.52.52.52.52.52.52.52.52.52.52.5
Polyetherimide
Characteristics inkViscosity (MPa·s, 20°C)3.3 3.44.03.23.34.23.43.44.43.53.6
The average particle size D50 (nm)10298103121116118150155152110107
pH (20°C) water extracts7.67.87.57.67.87.87.77.67.67.67.7
The stability of the dispersionAndAndAndAndAndAndAndAnd AndAndAnd
Property output ink from nozzlesAndAndAndAndAndAndAndAndAndAndAnd

Table 2
The ink compositionExamples
1-121-131-141-151-161-171-181-191-201-211-221-23
PigmentsSoot
Genocidally Magenta
Phtalocyanine blue
Nickel complex yellow3.0
Oxide titanium14.014.014.014.014.014.014.014.014.01.05.0
ResinComplex polyester2.5
Acrylic resin2.5
Polyvinyl chloride3.0 2.52.52.52.52.52.52.55.55.0
Organic solventsUtilmately ether of diethylene glycol77.063.563.563.563.563.563.575.871.6
Diethyl ether of diethylene glycol63.5
Onomatology broadcast DIPROPYLENE glycol 63.5
γ-butyrolactone14.017.017.017.017.017.017.017.017.017.017.017.0
Isophorone63.5
Volatile anti-corrosive agentsDicyclohexylamine0.50.50.50.50.5 0.50.50.50.50.5
Cyclohexylcarbamate0.5
Cyclohexylamine
Agents for dispergirovanija pigmentPolyetherimide And2.52.52.52.52.52.52.52.5 2.50.20.9
Polyetherimide2.5
Characteristics inkViscosity (MPa·s, 20°C)4.54.94.85.34.85.15.04.94.95.04.75.1
The average particle size D50 (nm)103240236242238234242240234230239 235
pH (20°C) water extracts7.57.47.77.87.77.57.67.77.67.87.87.9
The stability of the dispersionAndAndAndAndAndAndAndAndAndAndAndAnd
Property output ink from nozzlesAndAndAndAndAndAndAndAndAndAndAndAnd

The table is 3
The ink compositionExamples
1-241-251-261-271-281-291-301-311-321-331-34
PigmentsSoot10.5
Genocidally Magenta
Phtalocyanine blue
Nickel complex yellow
Oxide titanium10.015.020.014.014.014.014.014.014.014.0
ResinComplex polyester 3.0
Acrylic resin
Polyvinyl chloride4.01.30.52.4952.52.52.52.52.52.5
Organic solventsUtilmately ether of diethylene glycol66.763.558.464.058.563.9963.061.063.563.569.5
Diethyl ether of diethylene glycol
Onomatology broadcast dipropyleneglycol
γ-butyrolactone17.017.017.017.017.017.017.017.017.017.014.0
Isophorone
Volatile anti-corrosive agentsDicyclohexylamine0.50.50.50.0055.50.011.03.00.250.250.5
Cyclohexylcarbamate0.25
Cyclohexylamine
Agents for dispergirovanija pigment1.82.73.62.52.52.52.52.52.52.52.5
Polyetherimide
Characteristics inkViscosity (MPa·s, 20°C)4.94.75.04.94.84.74.94.94.84.94.0
The average particle size D50 (nm)245235240240 231238240241238238100
pH (20°C) water extracts7.57.67.74.510.56.58.29.07.77.67.6
The stability of the dispersionAndAndAndInInAndAndAndInInIn
Property output ink from nozzlesAndAndInInInInAndInInInIn

Table 4
The ink compositionComparative examples
1-11-21-31-41-5
PigmentsSoot3.0
Genocidally Magenta3.0
Phtalocyanine blue3.0
Nickel complex yellow3.0
Oxide titanium 14.0
ResinComplex polyester3.0
Acrylic resin3.0
Polyvinyl chloride3.03.02.5
Organic solventsUtilmately ether of diethylene glycol77.077.077.077.064.0
Diethyl ether of diethylene glycol
Onomatology broadcast dipropyleneglycol
γ-butyrolactone14.514.514.514.517.0
Isophorone
Agents for dispergirovanija pigmentPolyetherimide And2.52.52.52.5
Polyetherimide2.5
Characteristics inkViscosity (MPa·s, 20°C)3.53.44.54.54.9
The average particle size D50 (nm)99120151108238
4.14.34.04.24.0
The stability of the dispersionInInInInIn
Property output ink from nozzlesDDDDD

As can be seen from the data presented in Tables 1-3, the ink compositions according to examples 1-1 - 1-34 provide good results in the measurement of all properties and good quality print.

In contrast, the data in Table 4 show that each of the ink compositions of comparative examples 1-1 to 1-5 lead to clogging of the nozzle and poor print quality.

Example 2-1 - 2-35 and comparative examples 2-1 - 2-5.

Mixtures containing various ingredients are given in Tables 5-8 (in parts)were mixed in a sand mill for 3 hours to obtain compositions according to examples 2-1 - 2-35 and comparative examples 2-1 - 2.5.

Pigments, resins and agents for dispersing pigments were the same as used in examples 1-1 - 1-34 and comparative ol the measures 1-1 - 1-5.

Instead of anti-corrosive agents used in examples 1-1 - 1-34 and comparative examples 1-1 to 1-5 was applied the following imidazole compounds:

The imidazole (IZ, produced by Nippon Synthetic Chemical Industry Co., Ltd);

2-Mei (2 M, produced by Nippon Synthetic Chemical Industry Co., Ltd.);

The benzimidazole (benzimidazole, produced by Aldrich Co., Ltd.); and

2-ethyl-4-Mei (2-ethyl-4-Mei, produced by Tokyo Chemical Industry Co., Ltd.).

The obtained ink compositions of examples 2-1 - 2-35 and comparative examples 2-1 - 2-5 were tested, was determined viscosity, average particle size, the pH value of aqueous extracts, the stability of the dispersion and stability of the output ink from nozzles of the methods described above for examples 1-1 - 1-34 and comparative examples 1-1 to 1-5.

The measurement results are shown in Tables 5-8 below.

As you can see from the data in Tables 5-7, the ink compositions of examples 2-1 - 2-35 according to the invention provide good results in the measurement of all properties and good quality print.

In contrast, the data in Table 8 show that each of the ink compositions of comparative examples 2-1 - 2-5 led to clogging of the nozzle, which caused poor quality print.

Table 5
The ink compositionExamples
2-12-22-32-42-52-62-72-82-92-102-11
PigmentsSoot3.03.03.0
Genocidally Magenta3.03.03.0
Phtalocyanine blue 3.03.03.0
Nickel complex yellow3.03.0
Oxide titanium
ResinComplex polyester3.03.03.03.0the
Acrylic resin3.03.03.03.0
Polyvinyl chloride3.03.03.0
Organic solventsUtilmately ether of diethylene glycol77.077.077.077.077.077.077.077.077.077.077.0
Diethyl ether of diethylene glycol
Onomatology broadcast dipropyleneglycol
γ-butyrolactone14.014.014.014.014.014.014.014.014.014.014.0
Isophorone
Imidazole compoundsThe imidazole0.50.50.50.50.50.50.50.50.50.50.5
2-Mei
The benzimidazole
Agents for dispergirovanija pigmentPolyetherimide And2.52.52.52.52.52.52.52.52.52.5
Polyetherimide
Characteristics inkViscosity (MPa·s, 20°C)3.33.44.03.23.34.23.43.44.43.53.6
The average particle size D50 (nm)10098103120116118150153 152110105
pH (20°C) water extracts7.57.87.57.67.87.77.77.67.57.67.7
The stability of the dispersionAndAndAndAndAndAndAndAndAndAndAnd
Property output ink from nozzlesAndAndAndAndAndAndAndAndAndAndAnd

Table 6
The ink compositionExamples
2-122-132-142-152-162-172-182-192-202-212-222-23
PigmentsSoot
Genocidally Magenta
Phtalocyanine is blue -
Nickel complex yellow3.0
Oxide titanium14.014.014.014.014.014.014.014.014.01.05.0
ResinComplex polyester2.5
Acrylic resin2.5
Polyvinyl chloride3.02.52.52.52.52.52.52.55.55.0
Organic solventsUtilmately ether of diethylene glycol77.063.563.563.5 63.563.563.575.871.6
Diethyl ether of diethylene glycol63.5
Onomatology broadcast dipropyleneglycol63.5
γ-butyrolactone14.017.017.017.017.017.017.017.017.017.017.0
Isophorone63.5
Imidazole compoundsThe imidazole0.50.50.50.50.50.50.50.50.50.5
2-Mei0.5
The benzimidazole 0.5
Agents for dispergirovanija pigmentPolyetherimide And2.52.52.52.52.52.52.52.52.50.20.9
Polyetherimide2.5
Characteristics inkViscosity (MPa·s, 20°C)4.54.8 4.85.34.85.25.04.94.84.94.75.0
The average particle size D50 (nm)103240236242238232241240234230238235
pH (20°C) water extracts7.57.47.67.87.77.57.67.57.67.87.87.9
The stability of the dispersionAndAndAndAndAndAnd AndAndAndAndAndAnd
Property output ink from nozzlesAndAndAndAndAndAndAndAndAndAndAndAnd

Table 7
The ink compositionExamples
2-242-252-262-272-282-292-302-312-32-2-332-342-35
PigmentsSoot 10.5
Genocidally Magenta
Phtalocyanine blue
Nickel complex yellow
Oxide titanium10.015.020.014.014.014.014.014.014.014.014.0
ResinComplex polyester3.0
Acrylic resin
Flooring and vinyl chloride4.01.30.52.4952.52.52.52.52.52.52.5
Organic solventsUtilmately ether of diethylene glycol66.763.558.464.058.563.9963.061.063.563.569.563.5
Diethyl ether of diethylene glycol
Onomatology broadcast dipropyleneglycol
γ-butyrolactone17.017.017.017.017.017.017.017.017.017.014.017.0
Isophorone
Imidazole compoundsThe imidazole0.50.5 0.50.0055.50.011.03.00.250.250.5
2-Mei0.25
The benzimidazole0.25
2-ethyl-4-Mei 0.5
Agents for dispergirovanija pigmentPolyetherimide And1.82.73.62.52.52.52.52.52.52.52.52.5
Polyetherimide
Characteristics inkViscosity (MPa·s, 20°C)4.94.75.04.94.84.74.84.94.8 5.04.04.9
The average particle size D50 (nm)245235238240233238239241238236100230
pH (20°C) water extracts7.57.67.74.510.56.58.29.07.57.67.67.5
The stability of the dispersionAndAndAndInInAndAndAndInInInAnd
Property in the course of ink from a nozzle AndAndInInInInAndInInInInAnd

Table 8
The ink compositionComparative examples
2-12-22-32-42-5
PigmentsSoot3.0
Genocidally Magenta3.0
Phtalocyanine blue3.0
Nickel complex yellow3.0
Oxide titanium14.0
ResinComplex polyester3.0
Acrylic resin3.0
Polyvinyl chloride3.03.02.5
Organic solventsUtilmately ether of diethylene glycol77.077.077.077.064.0
Diethyl ether of diethylene glycol
Onomatology broadcast dipropyleneglycol
γ-butyrolactone14.514.514.514.517.0
Isophorone
Imidazole compoundsThe imidazole
2-Mei
The benzimidazole
Agents for dispergirovanija pigmentPolyetherimide And2.52.52.52.5
Polyetherimide2.5
Characteristics inkViscosity (MPa·s, 20°C)3.53.44.54.54.9
The average particle size D50 (nm)99120151108238
pH (20°C) water extracts4.14.34.04.24.0
The stability of the dispersionInInIn InIn
Property output ink from nozzlesDDDDD

1. Nonaqueous ink composition for ink-jet printing containing pigment, a resin as a binder agent for dispersing the pigment and an organic solvent together with an anticorrosive agent, with an anticorrosive agent selected from the group comprising imidazole compounds, carbonate dicyclohexylamine, nitrite dicyclohexylamine, dicyclohexylamine, laurate of cyclohexylamine, benzoate of cyclohexylamine, the carbamate of cyclohexylamine, benzoate of cyclohexylamine, the carboxylate of cyclohexylamine, the acrylate of cyclohexylamine, carbonate of cyclohexylamine, cyclohexylamine, kaprilat of cyclohexylamine, nitrite Diisopropylamine, laurate of dicyclohexylamine, the carbamate of cyclohexylamine, benzoate of ammonium, nitrite of dicyclohexylamine, salicylate of dicyclohexylamine, benzoate of dicyclohexylamine, nitrite of Diisopropylamine, nitrite of nitronaphthalene, kaprilat of dicyclohexylamine, cyclohexanecarboxylate of dicyclohexylamine, the acrylate of dicyclohexylamine, carbonate of cyclohexylamine, kaprilat of dicyclohexylamine, laurate of cyclohexylamine and yclohexanol of cyclohexylamine, in the amount of from 0.01 to 5.0 wt.%, as agent for dispersing pigment is polyetheramine resin containing two or more amide groups in the molecule and having srednetsenovoj molecular weight of from 700 to 15,000.

2. Non-aqueous ink composition for inkjet printing according to claim 1 in which the aqueous extracts non-aqueous ink composition for inkjet printing have a pH of from 6.0 to 10.0.

3. Non-aqueous ink composition for inkjet printing according to claim 1, in which the anti-corrosive agent is dicyclohexylamine or cyclohexylcarbamate of cyclohexylamine.

4. Non-aqueous ink composition for inkjet printing according to claim 1 in which the imidazole compound is an imidazole, 2-Mei, benzimidazole or 2-ethyl-4-Mei.

5. Non-aqueous ink composition for inkjet printing according to any one of claims 1 to 4, in which the pigment is an oxide of titanium and is contained in the ink in an amount of from 1.0 to 20.0 wt.%.

6. Non-aqueous ink composition for inkjet printing according to any one of claims 1 to 4, in which the pigment has an average volume particle size of from 50 to 400 nm.

7. Non-aqueous ink composition for inkjet printing according to claim 1, in which the organic solvent is an ether glycol.

8. Non-aqueous ink composition for inkjet printing according to claim 1, in which the resin is a resin selected from the complex polyester, acrylic resin and polyvinyl orida.



 

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FIELD: chemistry.

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FIELD: printing.

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39 cl, 2 dwg, 3 tbl

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Thermal printing // 2471633

FIELD: printing industry.

SUBSTANCE: invention relates to thermal printing and refers to a device for thermal printing of image from the transfer sheet on the product, and the method of printing the image from the transfer sheet for heat transfer on three-dimensional product. At the same time the device is adapted to print on three-dimensional products and comprises heating means adapted to supply hot gas with a variable flow rate.

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12 cl, 6 dwg, 4 tbl, 2 ex

FIELD: chemistry.

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18 cl, 17 ex

FIELD: printing industry.

SUBSTANCE: invention relates to a technology of a process of image transfer to different surfaces of items made of different materials. The method includes transfer of an image with display to a monitor connected to a computer. Image processing in a computer, printer output. Sending fragments or layers of an image to a printer for printing onto a carrier and transfer of a pigment onto produced fragments or layers of the carrier with the help of a foil applying device with a colour metallised, holographic or simple pigment foil. Afterwards an image is transferred to the surface, at the same time the image is processed in a PC by division of the image into fragments or layers complying with colour fragments of the image (colour separation). To produce the image on the surface, produced colour fragments or carrier layers are transferred with previously transferred pigment and foil with pigment remains, produced during transfer of the pigment from foil to the carrier or foil with the remaining pigment produced as the pigment is transferred from the foil to the carrier.

EFFECT: method makes it possible to apply an image of any size on every possible surface and with high resolution.

4 cl

FIELD: printing industry.

SUBSTANCE: invention relates to a technology of a process of image transfer to different surfaces of items made of different materials. The method includes transfer of an image with display to a monitor connected to a computer. Image processing in a computer, printer output. Sending fragments or layers of an image to a printer for printing onto a carrier and transfer of a pigment onto produced fragments or layers of the carrier with the help of a foil applying device with a colour metallised, holographic or simple pigment foil. Afterwards an image is transferred to the surface, at the same time the image is processed in a PC by division of the image into fragments or layers complying with colour fragments of the image (colour separation). To produce the image on the surface, produced colour fragments or carrier layers are transferred with previously transferred pigment and foil with pigment remains, produced during transfer of the pigment from foil to the carrier or foil with the remaining pigment produced as the pigment is transferred from the foil to the carrier.

EFFECT: method makes it possible to apply an image of any size on every possible surface and with high resolution.

4 cl

FIELD: printing industry.

SUBSTANCE: waterless ink composition for inkjet printing contains a pigment, a polymer in an amount of 1 to 20 wt % in terms of total weight, dispersing of pigment, organic solvent, and alcohol containing an amino group in an amount of 0.01 to 3 wt % in terms of total weight. The alcohol containing an amino group is selected from the group consisting of 2-amino-1-butanol, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-ethyl-1,3-propanediol and tris(hydroxymethyl) aminomethane. As the polymer the ink contains polyester, acrylic resin or polyvinyl chloride. The aqueous extract of the said waterless ink composition has pH ranging from 6.0 to 10.0.

EFFECT: increased stability of its pressure injection and the absence of clogging the nozzle of the print head with achievement of high quality printing.

7 cl, 1 tbl, 5 ex

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