CN1690140A

CN1690140A - Emulsion ink for stencil printing

Info

Publication number: CN1690140A
Application number: CNA2005100530121A
Authority: CN
Inventors: 小野浩二; 北村幸吉郎
Original assignee: Tohoku Ricoh Co Ltd
Current assignee: Asia Stencil Paper Co Ltd
Priority date: 2004-04-20
Filing date: 2005-03-04
Publication date: 2005-11-02
Anticipated expiration: 2025-03-04
Also published as: CN1321162C; JP2005306973A; JP4520767B2

Abstract

To provide a mimeograph printing emulsion ink excellent in chalking properties, without causing formation of stains by rolls in case of double-sided printing, excellent in starting-up properties, when ink is allowed to stand in a drum for a long period, scarcely causing separation of an oil from the ink, and excellent in environmental adaptation.

Description

Emulsion ink for porous printing

Invention field

It is good to prevent the roller pollution effects when the present invention relates to two-face printing, the good emulsion ink for porous printing of startability when printing ink is placed in drum for a long time.

Background technology

Stencil printing method is to use the porous printing body paper (hole version) of perforated portion as everyone knows, and the perforated portion by this hole version makes printing ink move from a side direction opposite side of hole version, carries out method of printing on the object plane being printed of paper etc.This stencil printing method always uses the emulsion ink of the water-in-oil-type (w/o type) that contains volatile solvent, nonvolatile solvent, resin, tinting material, tensio-active agent, water, frostproofer, ionogen and sanitas etc.

In recent years; consider from the conservation of resources viewpoint of paper etc.; porous printer is also required the cry of two-face printing increasing; generally do not use mandatory energy (ultraviolet ray (UV) and heat) to carry out drying from the outside; and soak in the general porous printer of dry fixed form in employing, the roller that produces during two-face printing pollutes (roller mark stains) becomes a big problem.

Therefore, as the method that prevents to produce roller mark stains, for example, the scheme of proposition has (1) to add the method for aluminium chelate class (with reference to No. 2926455 communique of special permission) in the oil phase; (2) use iodine number 80 or 80 following Synolac and the method (with reference to No. 3008724 communique of special permission) of aluminium chelate compound and (3) add the water-soluble high-molecular compound that contains tertiary amine toward aqueous phase methods (opening flat 9-31384 communique) etc. with reference to the spy.

Yet, according to No. 2926455 communique of above-mentioned special permission, owing to just improve infiltrative effect by improving dispersing of pigments, so the effect of the mark of anti-roller stains is insufficient.In addition, according to No. 3008724 communique of above-mentioned special permission, though use Synolac, iodine number is below 80 or 80, and the effect of this situation mark of anti-roller stains is also insufficient.In addition, open in the flat 9-31384 communique above-mentioned spy, though aqueous phase contains Polyvinylpyrolidone (PVP) 1～20 quality %, owing to can not in oil phase, mix the high oil-soluble resin of iodine number, so there is inadequate problem in the residual of brute forces such as anti-rubber (picture and text residual).

Therefore, it is good to prevent the roller pollution when also not obtaining two-face printing, and startability was good when printing ink was placed in drum for a long time, the emulsion ink for porous printing that environment is high, and therefore, expectation is at present developed rapidly.

Brief summary of the invention

It is good to prevent roller mark stains effect when the purpose of this invention is to provide two-face printing, and startability was good when printing ink was placed in drum for a long time, the emulsion ink for porous printing of environmentally safe.

In order to solve above-mentioned problem, found that the present inventor studies with great concentration repeatedly is as follows.Promptly, in the emulsion ink for porous printing that contains oil phase 10～90 quality % and water 90～10 quality %, by contain in this oil phase acid number be 15mg KOH/g or below the 15mg KOH/g and iodine number greater than 80 Synolac, preferably by containing Polyvinylpyrolidone (PVP) at aqueous phase, the effect that prevents roller mark stains in the time of can obtaining two-face printing is good, startability when printing ink is placed in drum for a long time is good, for porous printing printing ink of environmentally safe.

The present invention is based on present inventor's above-mentioned experience, the method that proposition is used as the above-mentioned problem of solution is as follows.That is,

＜1〉emulsion ink for porous printing is characterized in that, contains oil phase 10～90 quality % and water 90～10 quality %, contains acid number in this oil phase and be the following and iodine number of 15mg KOH/g or 15mg KOH/g greater than 80 Synolac.

Emulsion ink for porous printing of the present invention contains the following and iodine number of acid number 15mg KOH/g or 15mgKOH/g greater than 80 Synolac in its oil phase.So-called iodine number height means a lot of two keys in this molecular structure.When using the high Synolac of iodine number, molecular resin partly carries out oxidizing reaction by airborne oxygen with two keys and carries out polymerization, owing to being fixed on the paper after the resinous principle high viscosityization, so effectively prevent roller mark stains.Yet, people are known, the printing ink that contains high iodine number Synolac, because oxypolymerization easily, if so long-time placement in drum, printing ink is difficult to ejection owing to the high viscosityization of resinous principle, even but in above-mentioned iodine number scope, as adopt the low Synolac of acid number (hydroxyl or carboxyl acid number for a long time have the tendency of rising), ink emulsion good stability then, printing ink deterioration in time is slow, therefore, roller stains in the time of can providing two-face printing (roller mark stains) take place few, and printing ink good orifice plate printing emulsion ink of startability during long-term placement in drum.

＜2〉above-mentioned＜1〉described emulsion ink for porous printing, it is characterized in that the acid number of Synolac is below 10mg KOH/g or the 10mg KOH/g and iodine number is 81～110.

＜3〉above-mentioned＜1〉described emulsion ink for porous printing, it is characterized in that Synolac contains the soya fatty acid Synolac.

＜4〉above-mentioned＜3〉described emulsion ink for porous printing, it is characterized in that, contain the esterification soybean oil in the oil phase.

Should＜3〉and＜4 any one described emulsion ink for porous printing, by using soya fatty acid Synolac as Synolac, and use esterification soybean oil as oil component, good from environment, from the soybean oil composition amount to greater than 6%, the viewpoint that obtains the SOY trade mark of American Soybean Association considers it is favourable.

＜5〉above-mentioned＜1〉described emulsion ink for porous printing, it is characterized in that Synolac is 3Pa.s or more than the 3Pa.s 20 ℃ viscosity.Should＜5〉described in emulsion ink for porous printing, by using the higher Synolac of viscosity ratio, can make the little emulsion ink of viscosity ratio height and flexible ratio.The result is the perviousness that the printing ink fixed improves rerum natura simultaneously, improves the effect that prevents roller mark stains.

＜6〉above-mentioned＜1〉described emulsion ink for porous printing, it is characterized in that the content of Synolac in printing ink is 1～10 quality % by solid component concentration.

＜7〉above-mentioned＜1〉described emulsion ink for porous printing, it is characterized in that aqueous phase contains Polyvinylpyrolidone (PVP).Be somebody's turn to do＜7〉described emulsion ink for porous printing,, can utilize the film-forming properties of this Polyvinylpyrolidone (PVP) to make printing ink tunicle tool intensity and the toughness that forms image by adding Polyvinylpyrolidone (PVP) at aqueous phase.

＜8〉above-mentioned＜7〉described emulsion ink for porous printing, it is characterized in that the K value of polyvinylpyrrolidone is 15～30.

＜9〉above-mentioned＜7〉described emulsion ink for porous printing, it is characterized in that the amount of Polyvinylpyrolidone (PVP) in printing ink counted 0.2～1.0 quality % by solids component.

＜10〉above-mentioned＜1〉described emulsion ink for porous printing, it is characterized in that contain tinting material in the oil phase, this tinting material is a pigment.

＜11〉above-mentioned＜10〉described emulsion ink for porous printing, it is characterized in that contain colorant dispersion in the oil phase, this colorant dispersion is any at least of aluminium chelate compound and polyglycerol fatty acid ester compound.

Should＜10〉and＜11 any one described emulsion ink for porous printing, if aluminium chelate compound and polyglycerol fatty acid ester compound one are used from colo(u)rant dispersion, then because the raising of the perviousness of the pigment that causes of dispersing of pigments effect (synergy of the steric hindrance effect of the adsorption effect of aluminium chelate compound and polyglycerol fatty acid ester), so have more the effect that prevents roller mark stains.

＜12〉above-mentioned＜1〉described emulsion ink for porous printing, it is characterized in that aqueous phase contains any at least of divalent anionic compound and glycerine.Should＜12〉described emulsion ink for porous printing, contain the negatively charged ion of divalent by aqueous phase, can dwindle the water particle diameter in the printing ink, so make the yield value rising of printing ink, inhibited oil separation.In addition, contain glycerine by aqueous phase, utilize to suppress printing ink that the water volatilization caused through the time effect of deterioration and the static stabilization of emulsion, can keep the effect of anti-roller mark stains and further reduce printing ink long-term going bad of placing in drum.

＜13〉above-mentioned＜1〉described emulsion ink for porous printing, it is characterized in that, in aqueous phase and oil phase, any at least one contain oxidation inhibitor in mutually, be somebody's turn to do＜13〉described emulsion ink for porous printing, by using oxidation inhibitor, can slow down the oxidation of Synolac, reduce printing ink long-term place rotten in drum.

Embodiment

Emulsion ink for porous printing of the present invention, contain oil phase 10～90 quality % and water 90～10 quality %, contain acid number in this oil phase and be the following and iodine number of 15mg KOH/g or 15mg KOH/g greater than 80 Synolac, contain tinting material, colorant dispersion, also contain other compositions as required.

The above-mentioned emulsion ink for porous printing of this moment contains oil phase 10～90 weight % and water 90～10 quality %, preferred oil phase 20～50 quality % and water 50～80 quality %.

When the blending ratio of above-mentioned oil phase is lower than 10 quality %, can not obtain the emulsion form of W/O sometimes, when surpassing 90 quality %, the effect as the W/O emulsion on rerum natura is not enough sometimes.

＜oil phase 〉

-Synolac-

Above-mentioned Synolac, preferred acid number are 15mg KOH/g or below the 15mg KOH/g, more preferably 10mg KOH/g or more than the 10mg KOH/g.And iodine number is preferably greater than 80, more preferably 81～110.

When above-mentioned acid number surpassed 15mg KOH/g, because the printing ink in the printer drum is rotten, printing ink is difficult sometimes discharged.And above-mentioned iodine number is 80 or 80 when following, and stains increase due to the roller in the two-face printing.

Here, the acid number of above-mentioned Synolac for example can adopt JIS K0070 to measure.The iodine number of above-mentioned Synolac for example can adopt JIS K0070 to measure.

In addition, the preferred 3Pas of viscosity under 20 ℃ of the above-mentioned Synolac or more than the 3Pas, more preferably 5～20Pas.When above-mentioned viscosity was lower than 3Pas, the viscosity ratio of printing ink was not enough, was the printing ink to the difficult infiltration of paper.

Here, the viscosity of above-mentioned Synolac for example can adopt taper template rotational viscosimeter to measure.

In addition, the oil length of above-mentioned Synolac, quality representation in the resin when adopting lipid acid in the above-mentioned grease to exist with tri-glyceride is generally 50～90 quality %.

As above-mentioned Synolac so long as satisfy above-mentioned rerum natura Synolac can and do not have particular restriction, can suitably select according to purpose, contain grease usually, polyprotonic acid and polyvalent alcohol.As above-mentioned grease, for example, can enumerate Oleum Cocois, plam oil, sweet oil, Viscotrol C, Rice pollard oil, Oleum Gossypii semen, soybean oil, Semen Lini oil, tung oil etc., wherein, most preferably use the soya fatty acid Synolac of soybean oil.As above-mentioned polyprotonic acid, can use any of saturated polybasic acid and unsaturated polyprotonic acid.As above-mentioned saturated polybasic acid, for example, can enumerate Tetra hydro Phthalic anhydride, m-phthalic acid, terephthalic acid, succsinic acid, hexanodioic acid, sebacic acid, tetrahydrophthalic acid etc.As above-mentioned unsaturated polyprotonic acid, for example, can enumerate toxilic acid, maleic anhydride, fumaric acid, methylene-succinic acid, citraconic anhydride etc.

As above-mentioned polyvalent alcohol, for example, can enumerate ethylene glycol, glycol ether, triglycol, polyoxyethylene glycol, propylene glycol, 1, ammediol, 1,4-butyleneglycol, glycerol, TriMethylolPropane(TMP), neopentyl glycol, two glycerol, three glycerol, tetramethylolmethane, Dipentaerythritol, mannitol, Sorbitol Powder etc.

The addition of above-mentioned Synolac is preferably 1～10 quality % of printing ink total mass, more preferably 3～7 quality %.

Above-mentioned addition is very little the time, and the effect of anti-roller mark stains is sometimes little, and in the time of mostly, effect does not have difference, causes cost to raise on the contrary sometimes.

The oil phase of emulsion ink for porous printing of the present invention except above-mentioned Synolac, also can contain other resin in the scope of not destroying purpose of the present invention and effect.Do not have particular restriction as these other resin, can from known resin, suitably select according to purpose.For example, can enumerate rosin series resins such as rosin, polymerized rosin, staybelite, rosin ester, rosen polyester resin, hydrogenated wood rosin glycerol ester; Modified rosin resins such as rosin modified alkyd resin, Abietyl modified maleic acid resin, rosin modified phenolic resin; Maleic acid resin; Resol; Petroleum resin; Rubber derivative resins such as thermoprene; Terpine resin; Polymerized castor oils etc., these can use a kind separately, also can will also use more than 2 kinds.

In the above-mentioned oil phase, except above-mentioned Synolac, also tinting material, colorant dispersion, oxidation inhibitor, vegetables oil be can contain, can also emulsifying agent, mineral oil, filler pigment etc. be contained as required.

-tinting material-

As above-mentioned tinting material, can use the known pigment of various tones, dispersed dye etc., wherein, pigment most preferably.As above-mentioned tinting material, for example, can enumerate carbon black classes such as Shawinigan black, thermally oxidized black, furnace treated black; Mineral dyes such as aluminium powder, bronze powder, chrome yellow, ultramarine, chromic oxide, titanium oxide; Azo pigments such as insoluble azo colour, azo lake, condensed azo-pigment; Phthualocyanine pigments such as metal-free phthalocyanine, CuPc pigment; Anthraquinone be pigment, quinoline a word used for translation ketone be pigment, isoindoline ketone be pigment, isoindoline be pigment, dioxazine be pigment, intellectual circle be pigment, perylene be pigment, perylene ketone be pigment, the sulfuration indigo be that pigment, Kui phthalein ketone are condensation polycyclic series pigments such as pigment, metal complex; Pigment dyestuffs such as acidity or basic dyestuff color lake; Oil-soluble colourant such as diazotizing dyes, anthraquinone based dye; High-visibility pigments etc., these both can use a kind separately, also can will also use more than 2 kinds.

As above-mentioned high-visibility pigment, can use the fluorescence dye dissolving that will send various tones after the synthetic resins of mass polymerization or the polymerization or painted, the painted block resin that makes pulverize, the high-visibility pigment of the so-called synthetic resins solid solution build of refinement; As the synthetic resins of carried dye, for example, can enumerate melamine resin, urea resin, sulfonamide resin, Synolac, polyvinyl chloride (PVC) RESINS etc.

When in oil phase, adding the carbon ink as above-mentioned tinting material, be lower than 5 acidic carbon black as pH, can use the commodity of market sale, for example, can enumerate MA-100, MA-7, MA-77, MA-11, #40, #44 (all being Mitsubishi Chemical company limited systems), Raven1100, Raven1080, Raven1255, Raven760, Raven410 (all being コロ Application PVC ヤ Application カ one ボ Application corporate systems) etc.

Preferred 0.01～1.0 μ m of the median size of above-mentioned insoluble tinting material, more preferably 0.01～0.5 μ m.

The addition of above-mentioned tinting material in emulsion ink for porous printing do not have particular restriction, can suitably select according to purpose, usually preferred 2～15 quality %.

-colorant dispersion-

As above-mentioned colorant dispersion so long as do not influence emulsion formation can and do not have a particular restriction, can suitably select according to purpose, for example, can use following emulsifying agent nonionogenic tenside, alkylamine is a macromolecular compound, the aluminium chelate compound, styrene-maleic anhydride copolymer, polyacrylic part alkyl ester, polyalkylene polyamine, the aliphatics polycarboxylic acid, polyethers, ester type anion surfactant, the long-chain amine salt of high molecular poly carboxylic acid, polyamide-based compound, phosphoric acid ester is a tensio-active agent, alkyl sulfocarboxylic hydrochlorate, sulfonated, the dioctyl sulfosuccinate, polymine, the alcohol amine salt, in the scope that does not influence the printing ink storage stability, also can use the ionic surfactant, amphoterics etc., these both can use a kind separately, also can will also use more than 2 kinds.

Wherein, by utilizing dispersing of pigments effect (synergy of the steric hindrance effect of the adsorption effect of aluminium chelate compound and polyglycerol fatty acid ester compound) to improve the perviousness of pigment, consider that from preventing the more resultful viewpoint of pair roller mark stains that preferably selects is any at least from aluminium chelate compound and polyglycerol fatty acid ester compound.

The addition of above-mentioned colorant dispersion does not have particular restriction, can suitably select according to purpose, 40 quality % of preferred colorant comprises total mass or below the 40 quality %, more preferably 2～35 quality %.

-oxidation inhibitor-

Above-mentioned oxidation inhibitor can prevent Synolac system oxidation, prevent the rotten of the long-term printing ink of placing in the drum, can add to oil phase and water any at least one mutually in.There is not particular restriction as this oxidation inhibitor, can suitably from known oxidation inhibitor, select, for example, can enumerate first dihydro guaiac acid (NDGA), lignum-vitae fat, citrate, extraction tocopherol, tocopherol, butylhydroxy toluene, gallic acid, butylated hydroxytoluene, Tenox PG, butylhydroxy connection phenylmethylether, sulphite, thiosulphate, xitix, ascorbate salt, ascorbic acid derivates etc., these both can use a kind separately, also can will also use more than 2 kinds or 2 kinds.

The addition of above-mentioned oxidation inhibitor is not made particular restriction, can suitably select according to purpose, is preferably 2 quality % of total ink or below the 2 quality %, more preferably 0.1～1.0 quality %.

Do not make particular restriction as above-mentioned vegetables oil, can suitably from known vegetables oil, select according to purpose, for example, can enumerate soybean oil, Semen Maydis oil, sunflower oil, rape seed oil, Thistle oil, sesame oil, Viscotrol C, take off Viscotrol C, camellia seed oil, sweet oil, Oleum Cocois, rice bran oil, Oleum Gossypii semen, plam oil, Semen Lini oil, palm kernel oil, tung oil, camellia caul-fat, raisin seed oil, Prunus amygdalus oil, Pistacia vera oil, Jojoba oil, macadamia nut oil, virtue nurse wet goods suddenly, these both can use a kind separately, also can will also use more than 2 kinds.

As above-mentioned esterified vegetable oil, can enumerate grease with above-mentioned vegetables oil esterification, as above-mentioned ester, for example, can enumerate methyl esters, ethyl ester, butyl ester etc.As this esterified vegetable oil, for example most preferably esterification soybean oil.

As above-mentioned Synolac, grease uses the soya fatty acid Synolac of soybean oil, by using the esterification soybean oil, surpasses under 6% the condition in the total from the soybean oil composition, can obtain the SOY trade mark approval of American Soybean Association, consider also favourable from secure context.

Preferred 1～35 quality % of the addition of above-mentioned vegetables oil in emulsion ink for porous printing, more preferably 5～25 quality %.

-other compositions-

As mentioned emulsifier so long as can form water-in-oil-type emulsion can and do not have a particular restriction, can suitably select according to purpose, as this nonionic is tensio-active agent, for example, can enumerate sorbitan-fatty acid ester, glycerol fatty acid ester, polyglycerol fatty acid ester, propylene glycol fatty acid ester, pentaerythritol fatty ester, polyoxyethylene sorbitan fatty acid ester, the polyoxyethylene sorbitol fatty acid ester, the polyoxyethylene glycerol fatty acid ester, cithrol, Voranol EP 2001, polyoxyethylene plant sterol ether, polyoxyethylene polyoxy-propylene, polyoxyethylene alkyl phenyl ether, polyoxyethylenated castor oil, polyoxyalkylene solidifies Viscotrol C, polyoxyethylene hydrous wool derivative, polyoxyethylene alkyl amine, the polyoxyethylene fatty amide, polyoxyethylene alkylphenyl formaldehyde condensation products etc., these both can use a kind separately, also can will also use more than 2 kinds or 2 kinds.

The addition of mentioned emulsifier in emulsion ink for porous printing do not have particular restriction, can suitably select according to purpose, preferred 1～8 quality %, more preferably 2～5.5 quality %.

There is not particular restriction as above-mentioned mineral oil, can suitably select according to purpose, for example, can enumerate paraffin series oil, naphthene series oil, oil series solvent, spindle oil, whiteruss, diesel oil, kerosene, machine oil, gear oil, lubricating oil, motor wet goods, wherein, most preferably paraffin series oil, naphthene series oil, oil series solvent.

Can use the commodity of market sale as above-mentioned paraffin series oil, for example, can enumerate the ダイア Na プロセスオイ Le, ダイア Na Off レシア series etc. of the emerging product of ガ one go イ Le ア one Network テイ Star Network series, the ス one パオイ Le series of Nippon Oil(Nippon Mitsubishi Oil) company limited system, the bright dipping of モ one PVC Le society system company limited system.

As above-mentioned naphthene series oil, the carbon content (CN) of the cycloalkanes composition of preferred ring analysis is more than 30% or 30%, the carbon content of aromatic component (CA) is below 20% or 20%, and the content of alkane composition (CP) is the paraffin series oil below 55% or 55%, for example, can enumerate ガ one go イ Le ア, the one Network テイ Star Network オイ Le 155 of モ one PVC Le society system and 300ID, ガ one go イ Le ア one Network テイ Star Network オイ Le ライト, ガ one go イ Le ア one Network テイ Star Network オイ Le C ヘ PVC one; ダイア Na プロセスオイ Le, ダイア Na Off レシアシリ one ズ of the emerging product of bright dipping company limited system; サ Application セ Application オイ Le シリ one ズ of Japan サ Application Oil Co., Ltd system etc.

As above-mentioned oil series solvent, can use the market sale product, for example, can enumerate a series of and エ Network ソ one Le of アイソバ of エ Network ソ Application chemistry society system; The AF ソ Le ベ Application ト series of Nippon Oil(Nippon Mitsubishi Oil) company limited system etc.

When considering printing ink security etc., these mineral oil preferably use the Ppolynuclear aromatic compositions of the aromatic hydrocarbons that contains the above condensation aromatic ring of 3 rings to be lower than the mineral oil of 3 quality %.In addition, metabolism (variation originality) index (MI) is lower than 1.0, aromatic hydrocarbons composition (%CA) is 20～55%, aniline point is to be respectively 10ppm or below the 10ppm below 100 ℃ or 100 ℃ and by the content of Ppolynuclear aromatics such as oily total mass benchmark benzo [a] anthracene, benzo [b] fluoranthene, benzo [j] fluoranthene, benzo [k] fluoranthene, benzo [a] pyrene, dibenzo [a.j] acridine, and to add up to amount be 50ppm or below the 50ppm.

In addition, fragrant hydrocarbon system oil that as required also can be safe to use (for example, the spy opens flat 11-80640 communique).

The addition of above-mentioned mineral oil in emulsion ink for porous printing do not have particular restriction, can suitably select according to purpose, preferred 1～35 quality %, more preferably 5～25 quality %.

Above-mentioned gelating agent will be contained in the resin gelization in the oil phase, have the effect that the storage stability, stationarity and the flowability that make printing ink etc. improve, preferably with oil phase in resin carry out complex bound compound.As this gelating agent, for example, can enumerate the organic acid salt of metals such as containing Li, Na, K, Al, Ca, Co, Fe, Mn, Mg, Pb, Zn, Zr, organic chelated compound, metallic soap oligopolymer etc.Particularly, can enumerate organic chelated compounds such as stearate such as metallic naphthenates such as sad metal-salt, manganese naphthenate, Zinic stearas, single ethyl acetoacetic acid aluminium isopropoxide such as aluminium octoate etc.These both can use a kind separately, also can more than 2 kinds or 2 kinds and use.

The addition of above-mentioned gelating agent does not have particular restriction, can suitably select according to purpose, is preferably the 50ppm of resin total amount in the oil phase or below the 50ppm, more preferably 5～10 quality %.

In order in printing ink, to prevent infiltration, regulate viscosity and can in oil phase, water or two-phase, add above-mentioned filler pigment, preferably inorganic particles and organic fine particles is any.As above-mentioned inorganic particles, for example, can enumerate that carclazyte, silicon-dioxide, talcum, clay, lime carbonate, barium sulfate, titanium oxide, aluminium are white, diatomite, kaolin, mica, aluminium hydroxide etc.As above-mentioned organic fine particles, can enumerate polyacrylate resin, urethane resin, vibrin, polyvinyl resin, acrylic resin, polyvinyl chloride (PVC) RESINS, polyvinylidene chloride resin, polystyrene resin, polyorganosiloxane resin, resol, Resins, epoxy or these multipolymer etc.

The addition of above-mentioned filler pigment in emulsion ink for porous printing do not have particular restriction, can suitably select according to purpose, preferred 0.1～50 quality %, more preferably 1～5 quality %.

＜water 〉

Above-mentioned water contains Polyvinylpyrolidone (PVP), and other water-soluble polymer, water also contain other compositions such as water evaporation suppressor or frostproofer, ionogen, O/W resin emulsion, anticorrosion and rust-preventive agent, pH regulator agent as required.

-Polyvinylpyrolidone (PVP)-

Not having particular restriction as above-mentioned Polyvinylpyrolidone (PVP), can suitably select from known Polyvinylpyrolidone (PVP), both can be the market sale product, also can be suitable synthetics.These both can use a kind separately, also can 2 kinds or 2 kinds of above and usefulness of y.

As above-mentioned Polyvinylpyrolidone (PVP) (PVP), for example, can suitably use the Polyvinylpyrolidone (PVP) of following structural formula (1) expression.

Structural formula (1)

But in the said structure formula (1), n represents the polymerization degree.

The preferred K value of above-mentioned Polyvinylpyrolidone (PVP) is 15～30.Here, so-called above-mentioned K value means molecular-weight average, the polymerization degree of Polyvinylpyrolidone (PVP), the target value of limiting viscosity.When above-mentioned K value greater than 30 the time, the aqueous viscosity that adds Polyvinylpyrolidone (PVP) rises De Taigao, after ink viscosity raises, to the printing ink from the printing ink back side attract or when printing the infiltration to paper obstruction is arranged.

Above-mentioned K value can derive from the measured value of Polyvinylpyrolidone (PVP) viscosity, can calculate according to the Fikentscher formula of following formula 1.

＜mathematical formula 1 〉

\log \frac{η_{rel}}{c} = \frac{{75 K}_{o}^{2}}{1 + 1.5 K_{o} c} + K_{o}

K＝1000K _o

In the above-mentioned formula (1), c represents the concentration of g/100ml solution, η _RelExpression and solvent ratio soltion viscosity.

The content of above-mentioned Polyvinylpyrolidone (PVP) in above-mentioned emulsion ink for porous printing is pressed preferred 0.2～1.0 quality % of solid component meter.When above-mentioned content was lower than 0.2 quality %, the effect of anti-roller mark stains was not enough sometimes, but addition surpasses 1.0 quality %, then caused cost to raise, and stopped up mesh when placing in the drum sometimes.

Above-mentioned water except above-mentioned Polyvinylpyrolidone (PVP), can also add other water-soluble high-molecular compound as required.Do not have particular restriction as these other water-soluble high-molecular compound, can suitably select, for example, can enumerate natural high moleculer eompound, semi-synthetic macromolecular compound, synthetic macromolecular compound etc. according to purpose.These both can use a kind separately, also can more than 2 kinds or 2 kinds and use.

As above-mentioned natural high moleculer eompound, for example, can enumerate starch, polymanna, sodium alginate, Polygalactan, tragacanth gum, gum arabic, poly-trisaccharide maltose, dextran, xanthene glue, gelatine, gelatin, collagen, casein etc.

As above-mentioned semi-synthetic polymer, for example, can enumerate carboxymethyl cellulose, methylcellulose gum, Natvosol, hydroxypropylcellulose, Vltra tears, hydroxymethyl starch, carboxymethyl starch, dialdehyde starch etc.

As above-mentioned synthetic macromolecular compound, for example, can enumerate acrylic resin derivatives such as polyacrylic acid, sodium polyacrylate, polyacrylic acid trolamine; Synthetic macromolecular compounds such as polyvinyl alcohol, polyacrylamide, polyethylene oxide, polyvinyl methyl ether etc.

As above-mentioned water, so long as cleaning water gets final product and do not have particular restriction, can suitably select according to purpose, for example, can use tap water, ion exchanged water, distilled water etc.

Do not have particular restriction as above-mentioned evaporation of water inhibitor or frostproofer, can from known additive, suitably select, for example, can enumerate rudimentary saturated monohydroxy alcohol, dibasic alcohol, polyvalent alcohol etc.These both can use a kind separately, also can more than 2 kinds or 2 kinds and use.

As above-mentioned rudimentary saturated monohydroxy alcohol, for example, can enumerate methyl alcohol, ethanol, Virahol, butanols, isopropylcarbinol etc.As above-mentioned dibasic alcohol, can enumerate ethylene glycol, glycol ether, propylene glycol etc.As above-mentioned polyvalent alcohol, for example, can enumerate glycerol, Sorbitol Powder etc.

Wherein, by the printing ink that suppresses to be caused because of water volatilization etc. through the time effect of deterioration and the static stabilization of emulsion, can directly keep the effect of the anti-roller mark stains of Synolac, consider from making the aspect that the long-term printing ink of placing is rotten few in the drum, most preferably glycerol.

The addition of above-mentioned water evaporation suppressor or frostproofer does not have particular restriction, can suitably select according to purpose, is preferably 15 quality % of water total mass in the printing ink or below the 15 quality %, more preferably 4～12 quality %.

In order to improve the stability of emulsion, add above-mentioned ionogen, preferably add the ionogen that constitutes by the high ion of effective lyotrope order for the stability that improves emulsion.As the high negatively charged ion of lyotrope order is citrate ions, tartrate ion, sulfate ion, acetic acid ion etc., is alkalimetal ion, alkaline-earth metal ion as the high positively charged ion of lyotrope order.As the ionogen that adds here, the salt that preferred at least a negatively charged ion or positively charged ion are made of above-mentioned ion for example, can be enumerated sal epsom, sodium sulfate, Trisodium Citrate, sodium hydrogen phosphate, Sodium Tetraborate, sodium-acetate etc.Wherein, preferably contain the anionic compound of divalent, most preferably sal epsom.These both can use a kind separately, also can will also use more than 2 kinds or 2 kinds.

Above-mentioned electrolytical addition does not have particular restriction, can suitably select according to purpose, is preferably 0.1～2 quality % of water, more preferably 0.5～1.5 quality %.

Do not have particular restriction as above-mentioned oil-in-water-type resin emulsion, can from known resin emulsion, suitably select, both can use natural high moleculer eompound yet with synthetic macromolecular compound.As above-mentioned synthetic macromolecular compound, for example, can enumerate vinyl acetate resin, acrylate resin, methacrylate resin, vinyl chloride resin, ethylene-vinyl acetate copolymer, vinyl acetate-acrylic copolymer, copolymer in cinnamic acrylic ester, vinylidene chloride-acrylate copolymer, vinyl chloride-vinyl acetate copolymer, urethane resin etc.As above-mentioned natural high moleculer eompound, that can enumerate common use in the emulsion ink for porous printing is added into macromolecular compound in the oil phase etc.These both can use a kind separately, also can will also use more than 2 kinds or 2 kinds.

In addition, the dispersing method of relevant above-mentioned oil-in-water-type resin emulsion does not have particular restriction, both can add dispersion agent, protective colloid, tensio-active agent, can adopt emulsifier-free emulsion polymerization to synthesize yet.The minimum film-forming temperature of above-mentioned oil-in-water-type resin emulsion does not have particular restriction, can suitably select according to purpose, and is preferred below 40 ℃ or 40 ℃.

In order to prevent in the emulsion bacterium or mould breeding and add foregoing preservatives and mould inhibitor, help the prolonged preservation emulsion.There is not particular restriction as this Antisepticize and mildew preventive, can from known Antisepticize and mildew preventive, suitably select, for example, can enumerate aromatic hydroxy compounds such as Whitfield's ointment, phenols, right-methyl hydroxybenzoate, ethyl p-hydroxybenzoate or its muriate, Sorbic Acid, dehydro-acetic acid etc., these both can use a kind separately, also can will also use more than 2 kinds or 2 kinds.

Above-mentioned addition anticorrosion and mould inhibitor does not have particular restriction, can suitably select according to purpose, be preferably in the printing ink moisture total mass 3 quality % or below the 3 quality %, more preferably 0.1～1.2 quality %.

Do not have particular restriction as above-mentioned pH regulator agent, can from known pH regulator agent, suitably select, for example, can enumerate trolamine, sodium-acetate, triamylamine etc.Add these pH regulator agent as required, make the pH of water remain on 6～8.When the pH of water departs from above-mentioned scope, add the occasion of water-soluble high-molecular compound, destroy its effect sometimes.

In addition, for porous printing printing ink of the present invention is in order the time to make printing successfully separate with printing drums in printing or in order to prevent that printing from rolling, can to add wax in oil phase.In addition, by adding trolamine or sodium hydroxide etc. at aqueous phase, high viscosityization can be further promoted in the interpolation of water-soluble high-molecular compound.In addition, printing press gets rusty because of printing ink when aqueous phase adds rust-preventive agent or defoamer and can prevent to print, or prevents that printing ink from bubbling.These additive can be as required, adds the known product that add in the emulsion ink for porous printing, and its addition is identical with the occasion of product in the past.

Manufacture method as emulsion ink for porous printing of the present invention does not have particular restriction, can from known method, select aptly according to purpose, for example, can prepare oil phase and water liquid in advance respectively by adopting usual method, water is added in the above-mentioned oil phase, make at known mulser internal emulsifications such as dispersion mixer, uniform mixer, high-pressure homogenizers.Concrete is after the additive that adopts that three roller mixing machines make Synolac, tinting material, emulsifying agent, other one-tenth of being added as required grade disperses equably, adopts usual method to prepare oil phase.Then, add Polyvinylpyrolidone (PVP) in oil phase, the aqueous solution that other compositions such as anticorrosion and mould inhibitor are added in slow again interpolation as required carries out emulsification.

Emulsion ink for porous printing of the present invention, velocity of shear reach 20 seconds ^-1The time the preferred 3～40Pas of viscosity, more preferably 10～30Pas.

As mentioned above, roller mark stains do not take place in emulsion ink for porous printing of the present invention when two-face printing, the picture and text disbud is good, from printing ink produce separating of oil few, startability when printing ink is placed in drum for a long time is good, is applicable to that wheel changes the porous printing of porous printer.

Below embodiments of the invention are described, but the present invention is not limited to these embodiment.

Embodiment 1

The preparation of-emulsion ink for porous printing-

Phthalocyanine blue (Japan イ Application キ Manufacturing Co., Ltd system) 5.0 quality %, as polyglycerol fatty acid ester (aginomoto fine techniques company limited system) the 1.0 quality % of pigment dispersing agent, as spindle oil (コスモ Oil Co., Ltd system) the 5.0 quality % of mineral oil and the Synolac 5 quality % shown in the table 1, grind with three-roller, make pigment dispersion.No. 4 (Nippon Oil(Nippon Mitsubishi Oil) company limited system) the 10.0 quality % of AF solvent and the sorbitan that add as mineral oil in this pigment dispersion are that emulsifying agent 3.0 quality % mix, the preparation oil phase.

In addition, sal epsom 1.0 quality % and tap water 70.0 quality % are mixed with water.

Then, slowly above-mentioned water is added in the oil phase, use the dispersing and mixing machine to carry out emulsification, the preparation emulsion ink for porous printing.

Embodiment 2

The preparation of-emulsion ink for porous printing-

Except embodiment 1 is made into 12.0 quality % as No. 4 (Nippon Oil(Nippon Mitsubishi Oil) company limited) 10.0 quality % of AF solvent of the mineral oil of oil phase, and make the Synolac shown in the table 1 into, the tap water 70 quality % of aqueous phase are made into beyond the 68 quality %, other are operated similarly to Example 1, the preparation emulsion ink for porous printing.

Embodiment 3

Except adding aluminium chelate compound 1.0 quality % to oil phase among the embodiment 2, the spindle oil 5.0 quality % as mineral oil are made into beyond the 4.0 quality %, other are operated similarly to Example 2, prepare emulsion ink for porous printing.

Embodiment 4

Except adding glycerine 10.0 quality % to water among the embodiment 3, tap water 68.0 quality % are made into beyond the 58.0 quality %, other are operated similarly to Example 3, the preparation emulsion ink for porous printing.

Embodiment 5

Except embodiment 3 adds butylated hydroxytoluene 0.1 quality % as oxidation inhibitor to oil phase, tap water 68 quality % are made into beyond the 67.9 quality %, other are operated similarly to Example 3, the preparation emulsion ink for porous printing.

Comparative example 1

The preparation of-emulsion ink for porous printing-

Except the Synolac of oil phase among the embodiment 1 being made into the Synolac shown in the table 1, other are operated similarly to Example 1, the preparation emulsion ink for porous printing.

Comparative example 2

The preparation of-emulsion ink for porous printing-

Except the Synolac of oil phase among the embodiment 1 being made into the Synolac shown in the table 1, other and embodiment operate equally, the preparation emulsion ink for porous printing.

Then, the emulsion ink for porous printing to embodiment 1～5 and comparative example 1～2 carries out performance evaluation by laxative remedy.The results are shown in table 1.

Estimate 1: roller mark stains

In the drum of porous printer (northeast リコ one company limited's system, プリ Port one ト N-500), after fully being launched, each printing ink carries out complete (ベ ) image printing, and the printing back is placed after 24 hours and is republished once with the back side of blank sheet of paper plate-making to image.Use Macbeth densitometer is measured the concentration difference with white portion of paper and pollution portion in the 100th image.Moreover concentration difference is more little, and then to prevent the effect of roller mark stains good more.

Estimate 2: the startup in the drum after long-term the placement

In the drum of porous printer (northeast リコ one company limited's system, プリ Port one ト N-500), each printing ink is fully launched after, this print roller placed for 1 week in 60 ℃ baking oven after, print again, whether visual valuation occurs image all sidedly.Recover fast (occurring image all sidedly) beginning successively by 5,4,3,2,1 order from image, estimate with 5 grades.Moreover grade 1 expression has the blocking portion that does not recover fully.

Table 1

Composition (quality %)			Embodiment					Comparative example
			Embodiment					Comparative example		??1	??2	??3	??4	??5	??1	??2
			Oil phase	Phthalocyanine blue		??5.0	??5.0	??5.0	??5.0	??1	??2	??3	??4	??5	??1	??2	??5.0	??5.0	??5.0
The aluminium chelate compound		??-		Phthalocyanine blue		??5.0	??5.0	??5.0	??5.0	??-	??1.0	??1.0	??1.0	??-	??-		??5.0	??5.0	??5.0
The aluminium chelate compound		??-		Polyglycerol fatty acid fat		??1.0	??1.0	??1.0	??1.0	??-	??1.0	??1.0	??1.0	??-	??-	??1.0	??1.0	??1.0
Spindle oil		??5.0		Polyglycerol fatty acid fat		??1.0	??1.0	??1.0	??1.0	??5.0	??4.0	??4.0	??4.0	??5.0	??5.0	??1.0	??1.0	??1.0
Spindle oil		??5.0		Day stone AF4 solvent		??10.0	??12.0	??12.0	??12.0	??5.0	??4.0	??4.0	??4.0	??5.0	??5.0	??12.0	??10.0	??10.0
Sorbitan is an emulsifying agent		??3.0		Day stone AF4 solvent		??10.0	??12.0	??12.0	??12.0	??3.0	??3.0	??3.0	??3.0	??3.0	??3.0	??12.0	??10.0	??10.0
Sorbitan is an emulsifying agent		??3.0		Synolac	Usage quantity	??5.0	??5.0	??5.0	??5.0	??3.0	??3.0	??3.0	??3.0	??3.0	??3.0	??5.0	??5.0	??5.0
Acid number	??8.0	??9.0			Usage quantity	??5.0	??5.0	??5.0	??5.0	??9.0	??9.0	??9.0	??12.0	??18.0		??5.0	??5.0	??5.0
Acid number	??8.0	??9.0			Iodine number	??90.0	??96.0	??96.0	??96.0	??9.0	??9.0	??9.0	??12.0	??18.0	??96.0	??60.0	??100.0
Viscosity	??2.8	??8.0			Iodine number	??90.0	??96.0	??96.0	??96.0	??8.0	??8.0	??8.0	??3.0	??3.5	??96.0	??60.0	??100.0
Viscosity	??2.8	??8.0			Butylated hydroxytoluene		??-	??-	??-	??8.0	??8.0	??8.0	??3.0	??3.5	??-	??0.1	??-	??-
Water	Tap water			??70.0	Butylated hydroxytoluene		??-	??-	??-	??68.0	??68.0	??58.0	??67.9	??70.0	??-	??0.1	??-	??-	??70.0
	Tap water		Glycerine		??-	??-	??-	??10.0	??-	??68.0	??68.0	??58.0	??67.9	??70.0	??-	??-			??70.0
	Sal epsom		Glycerine		??-	??-	??-	??10.0	??-	??1.0	??1.0	??1.0	??1.0	??1.0	??-	??-	??1.0	??1.0
	Sal epsom		Add up to (quality %)			??100.0	??100.0	??100.0	??100.0	??1.0	??1.0	??1.0	??1.0	??1.0	??100.0	??100.0	??1.0	??1.0	??100.0
Estimate 1 (I.D. is poor for roller mark stains)			Add up to (quality %)			??100.0	??100.0	??100.0	??100.0	??0.03	??0.02	??0.02	??0.03	??0.04	??100.0	??100.0	??0.11	??0.03	??100.0
Estimate 1 (I.D. is poor for roller mark stains)			Estimate 2 (place and start grade)			??4	??4	??4	??5	??0.03	??0.02	??0.02	??0.03	??0.04	??5	??5	??0.11	??0.03	??2

Synolac shown in table 2 and the table 3 is to use soybean oil as greasy soya fatty acid Synolac.In addition, the acid number of Synolac is measured according to JIS K0070.And the iodine number of Synolac is measured according to JIS K0070.In addition, viscosity (Pas, 20 ℃) use taper template rotational viscosimeter (SR) measure by レオメトリ Star Network ス corporate system.

Results verification by table 1, contain acid number and be the embodiment 1 of the following and iodine number of 15mg KOH/g or 15mg KOH/g greater than 80 Synolac, during two-face printing, preventing effect that wheel pollutes (roller mark stains) is comparative example 1 excellence below 80 or 81 than the iodine number of Synolac, add the embodiment 3 of aluminium chelate compound among embodiment 2 that the iodine number of Synolac and acid number are more appropriate and the embodiment 2 again, can confirm to prevent the better effects if of roller mark stains.

In addition, can confirm to contain acid number and be 15mg KOH/g or 15mg KOH/g following or and iodine number greater than the embodiment 1 of 80 Synolac, startability was good when printing ink was placed in drum for a long time, can confirm to add the embodiment 4 of glycerine and embodiment 5 better effects if of adding oxidation inhibitor.

Embodiment 6

The preparation of-emulsion ink for porous printing-

Adding is as spindle oil (コスモ Oil Co., Ltd system) the 9.0 quality % of mineral oil, day stone No. 4 (Nippon Oil(Nippon Mitsubishi Oil) company limited system) 10.0 quality % of AF solvent and sorbitan as mineral oil are that emulsifying agent 3.0 quality % mix, and use the Synolac 2.0 quality % shown in the stirrer mixture table 2, prepare oil phase.

In addition, with phthalocyanine blue (Toyo Ink Manufacturing Co., Ltd system) 4.0 quality %, Polyvinylpyrolidone (PVP) (BASF AG's system, trade(brand)name Luvitec K30, K value=30) 0.8 quality % and tap water 69.2 quality %, use the granulated glass sphere shredder to mix, the preparation water.

Then, at leisure above-mentioned water is added in the above-mentioned oil phase, use the dispersing and mixing machine to carry out emulsification, the preparation emulsion ink for porous printing.

Embodiment 7

The preparation of-emulsion ink for porous printing-

With phthalocyanine blue (Toyo Ink Manufacturing Co., Ltd system) 4.0 quality %, as spindle oil (コスモ Oil Co., Ltd system) the 9.0 quality % of mineral oil and the Synolac 2.0 quality % shown in the table 2, use three machines to grind, the preparation pigment dispersion.Day stone No. 4 (Nippon Oil(Nippon Mitsubishi Oil) company limited system) the 12.0 quality % of AF solvent and the sorbitan that add in this pigment dispersion as mineral oil are that emulsifying agent 3.0 quality % mix, the preparation oil phase.

In addition, with Polyvinylpyrolidone (PVP) (BASF AG's system, trade(brand)name Luvitec K30, K value=30) 0.8 quality % and tap water 69.2 quality %, the preparation water.

Embodiment 8

The preparation of-emulsion ink for porous printing-

Except adding sal epsom 0.5 quality % to water among the embodiment 7, the addition of tap water is that other are operated similarly to Example 7 beyond the 68.7 quality %, the preparation emulsion ink for porous printing.

Embodiment 9

The preparation of-emulsion ink for porous printing-

Except embodiment 7 to the addition that aqueous phase adds glycerine 5.0 quality %, tap water is 64.2 quality %, other are operated similarly to Example 7, the preparation emulsion ink for porous printing.

Embodiment 10

The preparation of-emulsion ink for porous printing-

Except adding soybean methyl esters 4.0 quality % to oil phase among the embodiment 7, addition as the spindle oil of mineral oil is 6.0 quality %, and the addition of day stone AF solvent No. 4 (Nippon Oil(Nippon Mitsubishi Oil) company limited systems) is beyond the 11.0 quality %, other are operated similarly to Example 7, the preparation emulsion ink for porous printing.

Comparative example 3

The preparation of-emulsion ink for porous printing-

In embodiment 6, do not add Synolac, be that the addition of the tap water of 12.0 quality %, water is the 68.2 quality % as the addition of the spindle oil of mineral oil that to oil phase other are operated similarly to Example 6, the preparation emulsion ink for porous printing.

Comparative example 4

The preparation of-emulsion ink for porous printing-

Except not adding Synolac among the embodiment 6 to oil phase, as the addition of the spindle oil of mineral oil is that the addition of the Polyvinylpyrolidone (PVP) of 12.0 quality %, water is that the addition of 5.0 quality %, tap water is beyond the 64.0 quality %, other are operated similarly to Example 6, the preparation emulsion ink for porous printing.

Reference example 1

The preparation of-emulsion ink for porous printing-

Except not adding Polyvinylpyrolidone (PVP) to water among the embodiment 7, the addition of tap water is that other are operated similarly to Example 7 beyond the 70.0 quality %, the preparation emulsion ink for porous printing.

Reference example 2

The preparation of-emulsion ink for porous printing-

Except the addition of the Synolac of oil phase among the embodiment 7 is 10.0 quality %, addition as the spindle oil of mineral oil is 3.0 quality %, do not add Polyvinylpyrolidone (PVP) to aqueous phase, the addition of tap water is beyond 68.0 the quality %, other are operated similarly to Example 7, the preparation emulsion ink for porous printing.

Then, to each emulsion ink for porous printing of the embodiment 6～10, comparative example 3～4 and the reference example 1～2 that make, the evaluation of carrying out all performances as described below.The results are shown in table 2 and table 3.

Estimate 1: roller mark stains

In the drum of porous printer (northeast リコ one company limited's system, プリ Port one ト N-500), each printing ink is fully launched after, carry out the full images printing.Printing back is placed and is used blank sheet of paper plate-making again with the back up of image once after 1 hour, and the roller mark stains degree of the 100th image of visual observation is estimated by following standard.

[judgement criteria]

◎: roller mark stains do not take place fully

Zero: roller mark stains do not take place

△: the roller stains slightly take place

*: roller mark stains mostly occur

Estimate 2: picture and text are residual

In porous printer (northeast リコ one company limited's system, プリ Port one ト N-500) in the drum, each printing ink is fully launched after, carry out the full images printing, visual observation is firmly wiped 10 gained full images residual degree degree partly with rubber, estimates by following standard.

[judgement criteria]

◎: image residual basically (residual concentration height)

Zero: image retention

△: image retention is less slightly

*: image not residual basically (residual concentration is low)

Estimate 3: centrifugal separating of oil amount

Use centrifuge separator that each printing ink was applied 7000G 3 hours, measure isolating oil mass, estimate by following standard.

[judgement criteria]

◎: do not have isolating oil basically

Zero: have isolating oil slightly

△: isolating oil is slightly many

*: isolating oil is many

Estimate 4: the startability in the drum after long-term the placement

In the printing drums of porous printer (northeast リコ one company limited's system, プリ Port one ト N-500), each printing ink is fully launched after, this printing drums placed for 2 weeks in 50 ℃ of baking ovens after, print, whether visual observation occurs image all sidedly, estimates by following standard again.

[judgement criteria]

◎: image (it is fast that image recovers) comprehensively occurs

Zero: occur image basically comprehensively

△: some image do not occur

*: the part that image do not occur many (blocking portion that does not recover is fully arranged)

Table 2

Composition (quality %)			Embodiment
			Embodiment					??6	??7	??8	??9	??10
			Oil phase	Phthalocyanine blue		??-	??4.0	??6	??7	??8	??9	??10	??4.0	??4.0	??4.0
Spindle oil		??9.0		Phthalocyanine blue		??-	??4.0	??9.0	??9.0	??9.0	??6.0		??4.0	??4.0	??4.0
Spindle oil		??9.0		Day stone AF4 solvent		??12.0	??12.0	??9.0	??9.0	??9.0	??6.0	??12.0	??12.0	??11.0
Sorbitan is an emulsifying agent		??3.0		Day stone AF4 solvent		??12.0	??12.0	??3.0	??3.0	??3.0	??3.0	??12.0	??12.0	??11.0
Sorbitan is an emulsifying agent		??3.0		The soybean methyl esters		??-	??-	??3.0	??3.0	??3.0	??3.0	??-	??-	??4.0
Synolac	Usage quantity	??2.0		The soybean methyl esters		??-	??-	??2.0	??2.0	??2.0	??2.0	??-	??-	??4.0
	Usage quantity	??2.0		Acid number	??9.0	??9.0	??9.0	??2.0	??2.0	??2.0	??2.0	??9.0	??9.0
	Iodine number	??96.0		Acid number	??9.0	??9.0	??9.0	??96.0	??96.0	??96.0	??96.0	??9.0	??9.0
	Iodine number	??96.0		Viscosity	??8.0	??8.0	??8.0	??96.0	??96.0	??96.0	??96.0	??8.0	??8.0
	Water	Phthalocyanine blue		Viscosity	??8.0	??8.0	??8.0	??4.0	??-	??-	??-	??8.0	??8.0	??-
Polyvinylpyrolidone (PVP)		Phthalocyanine blue		??0.8	??0.8	??0.8	??0.8	??4.0	??-	??-	??-	??0.8		??-
Polyvinylpyrolidone (PVP)		Tap water		??0.8	??0.8	??0.8	??0.8	??69.2	??69.2	??68.7	??64.2	??0.8	??69.2
Glycerine		Tap water		??-	??-	??-	??5.0	??69.2	??69.2	??68.7	??64.2	??-	??69.2
Glycerine		Sal epsom		??-	??-	??-	??5.0	??-	??-	??0.5	??-	??-	??-
Add up to (quality %)				??100.0	??100.0	??100.0	??100.0	??-	??-	??0.5	??-	??100.0	??-
Add up to (quality %)			Estimate 1 (roller mark stains)			??100.0	??100.0	??○	??○	??○	??○	??100.0	??○
Estimate 2 (picture and text residuals)			Estimate 1 (roller mark stains)			??○	??◎	??○	??○	??○	??○	??◎	??○	??◎	??◎
Estimate 2 (picture and text residuals)			3 (the centrifugal separating of oil amounts) of evaluation			??○	??◎	??○	??○	??◎	??○	??◎	??○	??◎	??◎
Estimate 4 (placement startabilities)			3 (the centrifugal separating of oil amounts) of evaluation			??○	??○	??○	??○	??◎	??○	??○	??○	??◎	??○

Table 3

Composition (quality %)			Comparative example		Reference example
			Comparative example		Reference example		??3	??4	??1	??2
			Oil phase	Phthalocyanine blue		??-	??3	??4	??1	??2	??-	??4.0	??4.0
Spindle oil		??12.0		Phthalocyanine blue		??-	??12.0	??9.0	??3.0		??-	??4.0	??4.0
Spindle oil		??12.0		Day stone AF4 solvent		??12.0	??12.0	??9.0	??3.0	??12.0	??12.0	??12.0
Sorbitan is an emulsifying agent		??3.0		Day stone AF4 solvent		??12.0	??3.0	??3.0	??3.0	??12.0	??12.0	??12.0
Sorbitan is an emulsifying agent		??3.0		The soybean methyl esters		??-	??3.0	??3.0	??3.0	??-	??-	??-
Synolac	Usage quantity	??-		The soybean methyl esters		??-	??-	??2.0	??10.0	??-	??-	??-
	Usage quantity	??-		Acid number	??-	??-	??-	??2.0	??10.0	??9.0	??9.0
	Iodine number	??-		Acid number	??-	??-	??-	??96.0	??96.0	??9.0	??9.0
	Iodine number	??-		Viscosity	??-	??-	??-	??96.0	??96.0	??8.0	??8.0
	Water	Phthalocyanine blue		Viscosity	??-	??-	??4.0	??4.0	??-	??8.0	??8.0	??-
Polyvinylpyrolidone (PVP)		Phthalocyanine blue		??0.8	??5.0	??-	??4.0	??4.0	??-	??-		??-
Polyvinylpyrolidone (PVP)		Tap water		??0.8	??5.0	??-	??68.2	??64.0	??70.0	??-	??68.0
Glycerine		Tap water		??-	??-	??-	??68.2	??64.0	??70.0	??-	??68.0
Glycerine		Sal epsom		??-	??-	??-	??-	??-	??-	??-	??-
Add up to (quality %)				??100.0	??100.0	??100.0	??-	??-	??-	??100.0	??-
Add up to (quality %)			Estimate 1 (roller mark stains)			??100.0	??△	??○	??×	??100.0	??△
Estimate 2 (picture and text residuals)			Estimate 1 (roller mark stains)			??×	??△	??○	??×	??×	??△	??○	??○
Estimate 2 (picture and text residuals)			3 (the centrifugal separating of oil amounts) of evaluation			??×	??○	??○	??○	??×	??○	??○	??○
Estimate 4 (placement startabilities)			3 (the centrifugal separating of oil amounts) of evaluation			??○	??○	??○	??○	??×	??○	??○	??×

Synolac shown in table 2 and the table 3 is to use soybean oil as greasy soya fatty acid Synolac.In addition, the acid number of Synolac (mg KOH/g) is measured by JIS K0070.And the iodine number of Synolac is measured by JIS K0070.In addition, viscosity (Pas, 20 ℃) use taper template rotational viscosimeter (DSR) measure by レオメトリ Star Network ス corporate system.

By the results verification of table 2 and table 3, the emulsion ink for porous printing of implementation column 6～10 is compared with the printing ink of comparative example 3 and 4, wheel does not take place during (1) two-face printing pollute; (2) residual (the figure property stayed) firmly wiped such as anti-rubber is good; What (3) printing ink produced is separating of oil few; Startability when (4) printing ink is placed in drum for a long time is good; And (5) are low in the pollution of the environment.

That is, wheel does not take place during two-face printing pollute, this is compared as can be seen by embodiment 6,7 and comparative example 3.In addition, it is good to compare the residual (picture and text residual) that anti-as can be seen rubber firmly wipes by embodiment 6 and comparative example 3.As embodiment 7～10, contain tinting material in the oil phase by making, find better effects if.In addition, with respect to embodiment 6, embodiment 8 is very good, and the printing ink generation is separating of oil few as can be seen.In addition, compared as can be seen by embodiment and comparative example 4, the startability when printing ink is placed in drum for a long time is good, finds out better effects if by embodiment 9.

Moreover, find out that by the prescription of embodiment 10 the vegetables oil composition increases, the mineral oil composition reduces, and can confirm that environment protection is good.

Emulsion ink for porous printing of the present invention; do not take place when two-face printing that wheelmark stains, picture and text residual are good, printing ink produces separating of oil less, printing ink startability during long-term placement in drum is good; and it is good to environment protection; porous printing applicable to wheel commentaries on classics porous printer is specially adapted to two-face printing.

Claims

1. an emulsion ink for porous printing is characterized in that, contains oil phase 10～90 quality % and water 90～10 quality %, contains the following and iodine number of acid number 5mg KOH/g or 5mg KOH/g in this oil phase for greater than 80 Synolac.

2. by the described emulsion ink for porous printing of claim 1, it is characterized in that the acid number of Synolac is below 10mg KOH/g or the 10mg KOH/g and iodine number is 81～110.

3. by the described emulsion ink for porous printing of claim 1, it is characterized in that Synolac contains the soya fatty acid Synolac.

4. by the described emulsion ink for porous printing of claim 3, it is characterized in that, contain the esterification soybean oil in the oil phase.

5. by the described emulsion ink for porous printing of claim 1, it is characterized in that Synolac is 3Pas or more than the 3Pas 20 ℃ viscosity.

6. by the described emulsion ink for porous printing of claim 1, it is characterized in that the content of Synolac in printing ink is 1～10 quality % by solid component concentration.

7. by the described emulsion ink for porous printing of claim 1, it is characterized in that aqueous phase contains Polyvinylpyrolidone (PVP).

8. by the described emulsion ink for porous printing of claim 7, it is characterized in that the K value of Polyvinylpyrolidone (PVP) is 15～30.

9. by the described emulsion ink for porous printing of claim 7, it is characterized in that the content of Polyvinylpyrolidone (PVP) in printing ink is counted 0.2～1.0 quality % by solids component.

10. by the described emulsion ink for porous printing of claim 1, it is characterized in that contain tinting material in the oil phase, this tinting material is a pigment.

11., it is characterized in that contain colorant dispersion in the oil phase, this colorant dispersion is at least a of aluminium chelate compound and polyglycerol fatty acid ester compound by the described emulsion ink for porous printing of claim 10.

12., it is characterized in that aqueous phase has and contains at least a of anionic compound of divalent and glycerine by the described emulsion ink for porous printing of claim 1.

13. by the described emulsion ink for porous printing of claim 1, it is characterized in that, contain oxidation inhibitor in mutually at least one of water and oil phase.