SU511030A3 - Ink composition - Google Patents

Description

This invention relates to the field of printing inks, soluble in organic solvents and / or water and / or very well dispersible.

Printing inks serve to obtain preferably non-textile, containing dyes with sublimation and migration abilities that serve as carriers (Dyestuff substrates used to carry out the so-called migration or sublimation printing.

Preparations for printing inks are known, which are used, for example, for inscribing packages or for printing color illustrations where -pigments are used as a coloring agent.

The proposed presets for printing inks contain dyes which, unlike pigments, are capable of strongly Migrating and / or sublimating at relatively low temperatures of 140-250 ° C.

The object of the invention is therefore, consistently (printed "slashes").

The proposed print contains at least one dye capable of sublimation at 100-300 ° C, preferably at 160-220 ° C; one soluble resin serving as a carrier for the colorant; one aqueous organic or organic solvent, or a mixture of solvents; a resin serving as a thickener or a binder for printing ink, the latter and the resin serving as a carrier for the dye may be identical.

This includes such dyes that ensure sufficient color (staining) of the uncut textile material after heating for 30 seconds and up to 2 minutes and / or also at a lower pressure,

or at a higher pressure, or without pressure.

Preferably, dyes capable of sublimating in 15-25 seconds, maximum 120 seconds, at 140-300 ° C, preferably at 160-220 ° C, are used.

Optical brightening agents that are capable of sublimation also fall under the notion of dye.

Suitable colorants are

general dispersion dyes, i.e., preferably water-insoluble, capable of dyeing in the form of aqueous dispersions polyester fibers or cellulose ester fibers, as well as polyamide or acrylonitrile, and in the case of dyeing poly (ester) ether fibers or acetylcellulose fibers, that dyes are soluble in the fiber material, for example anthraquinoid

dyes, such as hydroxy and / or amino anthraquinone, azo dyes, chinophthalone azomethine, stilbene, nitrodiaryl, etc., (Disperse dyes with a t. of above 140 ° C are preferred. 1P, ed. preferred binder / or thickeners are: cellulose derivatives, e.g. nitrocellulose, cyanoethylcellulose, methylcellulose, ethylcellulose, oxyalkylated cellulose, e.g. axiylcellulose and oxypropylcellulose, cellulose esters, e.g. acetylcellulose, triacetyl or 2.5-cellulose, cellulose esters, e.g. with (non-fatal) fatty acids. Preferred dyes with a molecular weight below 1000. Suitable dyes are, for example, dyes that meet the following formulas: O NH, 3). QN. (iH Oc, CO-Y n with SOU About N NZON so-Ch

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Of the optical brighteners, mono- and bisazole as well as 65 benzoxazole derivatives are used, for example, nim | p. l (H BUT - VJH.lr t with - 6- Y uAAN / 4j, L. Where R means hydrogen, isopropyl, methyl, tert-butyl, L. P. e where R has the above values, as well as clarifiers groups, for example, clarifiers of the formula: K-COC, where R is methyl or ethyl. You can also use stilbene-type clarifiers, benzothiophene -s - diocidic, and irazoline, coumarin or benzimidazole series, which possess the necessary sublimation properties and means for the material subjected to migration. as resins - carriers in patentable blanks for Synthetic, semi-synthetic and natural resins are suitable for printing inks. These can be synthetic or semi-synthetic resins obtained by polymerization, polycondensation or polyaddition. In principle, all resins and binding agents used in production can be used to produce such inks for printing inks. varnishes and printing rasas. As carriers in preforms for printing inks, resins are used, which do not change under the action of air and do not enter of a reaction which does not form spontaneously crosslinks. However, the use of such reactive resins is not excluded. Preferred are resins of the following classes: , Abietic Acid and its Ether: soluble rosin-modified phenolic resins and resins based on acrylic compounds, as well as other natures. resins such as linseed linseed oil, shellac, and copal; b) maleic resin, free of oil, al | Kidney resins, styrene alkyl resins, alkyd resins modified with vinyltoluene, synthetic fatty acids, flax, castor, soybean, coconut, tall oil, blubber and acrylate resin; c) terpene resins; d) polyvinyl resins; polyvinyl acetate, polyvinylchloride: id, polyvinylidene chloride, polyvinyl acetal, polyvinyl alcohol, polyvinyl ether, copolymers and graft-polymers with various vinyl monomers, poly-acrylic resins, for example polymers of acrylic and methacrylic esters and their copolymers; e) styrene polymers and copolymers; f) polyolefins, for example, polyethylene and polyethylene wax, polypropylene, polypropylene wax, polybutylene, polyisobutylene, polyisoprope, substituted polyolefins, halogenated polyolefins, their copolymers, for example, copolymers of ethylene and vinyl acetate and other synthetic resins based on unsaturated hydrocarbons; g) coumarinov, indena and coumaronind & new resin; h) amINoplast, for example: urea and melamine resins, phenolic, for example novolak (unplasticized resole, resole modified with fatty acids or a water soluble resole), alkyl- and arylphenol resins, terpenphenolic resin, naphthalene formaldehyde resin, “arbamide”, Idamine resin, redox resin. ketone and aldehyde resins; soluble prepolycondensates can also be used, for example, phenol, resole, urea or melamine formaldehyde resins esterified with higher alcohols, especially butyl alcohol, flax polymerized oil, or resins based on wood oil esters and shtandoyl. i) polyamide and poly (complex) ester resins, such as linear or branched phthalic polyester resins, adipine, sebacic acids and diols or diols and triols, and nylon 6, nylon 66 and homopolyisocyanates; k) any cellulose derivatives, for example cellulose ethers, such as methylcellulose, hydroxyalkyl and alkyloxyalkyl cellulose, for example hydroxyethyl cellulose. or hydroxypropylcellulose, cyanoethylcellulose, ethylcellulose, benzylcellulose, and also nitrocellulose (which may not be completely nitrated). As well as the corresponding derivatives of other polysaccharides, starch ialrimer; 1) ievul: kaniziroza: 1st rubber and its progzodnye, for example, cyclic rubber or chlorinated rubber, etc .;

m) unstitched silicone resins;

p) polyurethanes (especially ifpure polyurethane is cured at elevated temperatures);

o) epoxy resins (in particular, hardened only at elevated temperatures of the mixture of resin and hardener and their forcondensates, in particular based on the bPhenol-A-diglycidyl ethers); and finally

p) forl products of non-saturated poly (complex) ether resins and diallyl phthalate polymers.

This, however, does not exhaust the list of used resins and synthetic substances. In addition to commonly used (in the manufacture of varnishes and printing inks), resins, other synthetic materials (plastics) can be used, if there is a corresponding solvent, as well as monomeric resins. In addition, individual resins or mixtures thereof can be used as a carrier.

The use of resins of groups l, o, and p includes soluble curable fo-rconde. Nsat as resin components, and this includes both heat-cured resins, preferably below the sublimation temperature, and resin components cured in the presence of hardeners. or curing initiators (which may contain latent curing initiators that are stable up to 50 ° C), for example, phenol, melamino- or urea-aldehyde resin products. The curing resin components are also referred to as cured lrotein, because it is soluble in organic solvents.

The weight ratio of dye: smOLE is taken in a wide interval, preferably, however, from 9: 1 to 1: 4.

The softening point is bold, usually above the sublimation temperature of the dye used.

Particularly preferred resins are cmols based on cellulose ethers, the substituents of which contain 2-4 carbon atoms, for example ethyl, propyl, hydroxyethyl and / or hydroxypropyl.

The above resins. And in particular (poly) Cellulose ethers are selected so that they are readily soluble in organic solvents such as alcohols, ketones or esters that can be mixed with aromatic hydrocarbons.

The inks for inks and the inks produced on their basis also contain a whole range of other additives (which will be discussed below), but mixtures consisting of a dye, resin, and (. ) organic solvent.

Preparation of blanks for printing inks from sublimated dyes and resins mentioned above can be done by various known methods, for example, simply by mixing the components in dry form or in AQUATIC medium, by wet grinding in a mill, the resulting product can be obtained if desired in a dry form by curing , spray drying or freeze drying, etc. Dry blanks for printing inks can be obtained

and in this way: a water-miscible organic liquid is added to a water-suspension of a water-insoluble dye containing dissolved or dispersed resin obtained by wet grinding

(solvent) in which the resin is insoluble. The resin falls out and settles on the suspended dye, the resulting product is filtered and dried.

Blanks for printing inks can

include a whole range of additives (additives), which can of course be introduced later in the printing inks. In order to increase the usability of printing inks, one can also add inorganic substances such as silica gel.

Other optional additives are also known dispersing dispersant dispersants, i.e., ionic

or non-ionic: surfactant-active compounds, such as condensation product of p-naphthalenesulfonic acid with formaldehyde, partially desulfinated ligninsulfonate, or condensation product of 1 mole of octylphenol with 8-1-0 mole of ethylene oxide.

Blanks for printed paints or respectively. Printing inks may also include other optional additives, such as m-dyes (plasticizers), such as dibutyl phthalate, agents that cause swelling of the fibers to be dyed, or permeability enhancing agents. It goes without saying that, when preparing preforms of a dry consistency, liquid additives are introduced preferentially upon receipt of the printing inks themselves.

Offer a printing ink composition, characterized in that the components consist of:

1) dyes or cm-dyes of dyes subliming at 100-300 ° C, preferably in a range of 140-230 ° C, which may, under certain conditions, include as a component,

2) a soluble resin or a mixture of resins that serve as a carrier of the dye;

3) a water-organic or substantially pure organic solvent or mixture of solvents, and

4) a resin OR a mixture of resins serving as a thickener and / or a binder, with components 3) and 4) can be mixed in advance, d components 2) and 3) can be at least partially identical.

Mixing can be carried out by known methods.

It is possible, for example, to obtain printing inks in the form of a dispersion of pigments (pigment, dispersion) of the components that are as finely dispersed as possible 1) and 2) and components 3) and 4), kneading them in the presence of grinding intetixifiers.

Other methods, blending and apparatus are described above in the preparation of preforms for printing inks, but instead of pure water, the work is carried out in the water organic or pure organic phase.

In order to obtain the printing inks themselves from the blanks, it is possible to practically use all organic solvents with a bale. at atmospheric pressure below 220 ° C, Preferably below 150 ° C, in which the loaded "dispensers and binders are sufficiently well dissolved or emulsified (dispersed). Aliphatic and aromatic hydrocarbons, such as n-heptane and, respectively, benzene, xylene and toluene, halohydrocarbons, such as methylene chloride, trichlorethylene and chlorobenzene, aliphatic nitrocarbons (nitropropane), can be mentioned as representative organic solvents. ) ;. or mixtures thereof, then glycols, for example ethylene glycol or polyethylene glycol, their mono- and dialkyl ethers, ethylene glycol mono- or diethyl ether, diethyl carbonate, dimethyl carbonate, or esters such as ethyl acetate, propyl acetate, butyl acetate, p-ethoxyethyl acetate, aliphatic or cycloyl, or cyclic ethers, such as ethyl acetate, propyl acetate, butyl acetate, p-ethoxyethyl acetate, aliphatic or cyclic ethers, or aliphatic or cycloyl ether , for example, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, isophorone, mesityl oxide, or diacetone alcohol. Mixtures of aliphatic ketones, for example, methyl ethyl ketone, with aromatic hydrocarbons, especially toluene, are also good. Particularly preferred is the use (use) of alcohols, for example methanol, ethanol, and preferably n-lropanol, isopropanol, n-butanol, greg-butanol, ethore-butanol or benzyl alcohol. It is also possible to take mixtures of several solvents containing at least one solvent from one of the listed classes, or mixtures of aqueous organic solvents.

Along with the dye, or clarifier, and the solvent (diluent), the patented inks contain predominantly also at least one binder that serves as a thickener for the printing paste and as at least a transfer agent for the binder (dye) with printed material (on which printing is performed). Synthetic, semi-synthetic and natural resins, obtained by both polymerization and polycondensation, are suitable as such a binder.

Quantifying the mixture of resins and

The mixture of solvents in printing inks, for example, when printing on paper strips (ribbons), is determined by two points (requirements).

On the one hand, there should be enough solvent to keep the resin dissolved and / or dispersed, on the other hand, the amount of solvent should remain within the limits that provide the viscosity necessary for printing (stuffing) printing ink. So, for example, with intaglio printing, good results are obtained when the ratio of resin to solvent is 1: 1 - 1: 5, preferably T: 3 - 1: 20.

Printing inks containing not only pure hydrocarbons as a solvent are preferred, and therefore the resins in such inks will dissolve in appropriate solvents, especially ketones, esters and alcohols boiling below 100 ° C. The advantage of these inks is the possibility of removing (after printing) the solvent at a relatively low temperature.

The printing technique (padding) and the composition of printing inks are selected in accordance with the substrate (print carrier, or primer, background); for example, alcohol or alcohol-based inks are used in intaglio printing, flexography, light printing, for example, when printing on paper, and alcohol-soluble or water-alcohol-soluble resins are used as thickeners and / or binders. mix h.

Different materials can be used as a primer (print medium or substrate) for the proposed inks: paper containing or not wood is smooth, one-sided smoothing and satin paper, lightly glued, filter paper, pile-up paper, grease-proof and waterproof (waterproof) paper, newsprint, cardboard, etc., films from polypropylene, polyvinyl chloride, cellophane, laminated and varnished cellophane, textile materials such as cotton fabrics, staple fabrics, polypropylene fabrics, as well as metal foil and sheet metal, especially aluminum and other metal foil.

Example 1. In a laboratory-type sand mill, grind for 24 hours while cooling 20 wt. including yellow dispersion dye formula

kn-so-sngsig nz

.COv

1S-S

Claims (2)

65 from 20 weight. Part of "siprapylcellulose and 360 wt. h of water. The ground mixture is then spray dried (to remove water), and a friable yellow powder is obtained. Similarly, dyes of the formulas O NHj and violet (blue) are obtained in the form of blue powders. Example 2. In the kneader, the weight is not mixed (month) 1 weight. h dye, 1 wt. including ethylcellulose, 4 wt. including crushed sodium chloride and 0.9 weight. including diacetone alcohol for 4 h at 50 ° C. Add 1 weight. including water, granulate, then add 75 weight. including water and subjected to wet grinding. The resulting suspension is filtered, washed with water from the solvent and -sol "," pyro is dried in a vacuum dryer. A free flowing powder is obtained. The resulting preparations are processed into printed ink as follows: 2.5 weight. hours of the corresponding drug (drug yarasitel), 2.5 weight. including ethylcellulose and 10 wt. the isopropanol is left in place until the resin is completely dissolved and the dye is evenly distributed, since it does not go into solution (does not dissolve). Similarly, inks are obtained by loading, instead of 10 weight. including isopropanol 10 wt. including methyl ethyl ketone. Invention A printing ink composition containing a synthetic binder and a coloring agent, characterized in that, in order to improve the quality of coloring, a disperse dye and / or optical brightener sublimated at 100-300 ° C is used as a coloring agent. the ratio of the coloring agent and the binding weight of 9: 1 is 1: 4.