WO2006002780A2 - Materiau d'impression a jet d'encre - Google Patents

Materiau d'impression a jet d'encre Download PDF

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Publication number
WO2006002780A2
WO2006002780A2 PCT/EP2005/006545 EP2005006545W WO2006002780A2 WO 2006002780 A2 WO2006002780 A2 WO 2006002780A2 EP 2005006545 W EP2005006545 W EP 2005006545W WO 2006002780 A2 WO2006002780 A2 WO 2006002780A2
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WO
WIPO (PCT)
Prior art keywords
ink
jet recording
recording material
material according
porous layer
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PCT/EP2005/006545
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English (en)
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WO2006002780A3 (fr
Inventor
Alain Dominique M. Sismondi
Corrado Balestra
Piero Cavalleri
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Ferrania Technologies S.P.A
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Publication of WO2006002780A2 publication Critical patent/WO2006002780A2/fr
Publication of WO2006002780A3 publication Critical patent/WO2006002780A3/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5227—Macromolecular coatings characterised by organic non-macromolecular additives, e.g. UV-absorbers, plasticisers, surfactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
    • B41M5/506—Intermediate layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5218—Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers

Definitions

  • the present invention refers to an ink-jet recording material comprising a support, and at least one ink receiving porous layer coated on said support, wherein at least one porous layer comprises, dispersed therein, a solution of a color fading inhibitor compound in an organic solvent having a logP value higher than 2.00.
  • ink-jet system to generate images has rapidly growth.
  • the improvement in both printers and ink-jet recording media performances allows to obtain images similar to conventional silver halide photographic ones.
  • due to spreading speed increase in printing systems there is the need to use recording media able to absorb, all ink volumes in very short time.
  • the ink high speed absorptivity can be achieved using an ink-jet recording material comprising a porous layer which is able to rapidly remove the fresh spread ink from the surface of the material, while the absorption capacity can be adjusted varying the thickness of the receiving layer.
  • the ink-jet record materials having porous layers present a better ink absorptivity than ink-jet record materials utilizing swelling system layers, the images printed on porous system may suffer of oxidation deterioration of coloring matter component under natural air exposure.
  • the gas circulation in porous materials supplies a continuous flux of oxidizing compounds, such as nitrogen oxides, sulfur oxides, oxygen or ozone gas, that are directly in contact with the coloring matter in the porous layer. Accordingly, images obtained by ink-jet recording materials have inferior properties in terms of storage characteristics, such as light resistance, water resistance and gas resistance, compared to images obtained by silver halide photographic materials.
  • antioxidant compounds provide a limited protection in the time that is vanished when the compound is consumed.
  • Most of natural or synthetic antioxidants like vitamin C, vitamin E, substituted hydtoquinone, exhibit positive activity to prevent image discoloration due to oxidation, but have the disadvantage of generating colored substances, as reaction products, that visibly modify the printed image. The most common observation is a yellowing change in both the printing and the non printing areas of image.
  • Various attempts have been done in the art to solve this color fading problem; in some cases, a color fading inhibitor compound has been added to the ink composition.
  • European Patent 875,544 discloses an ink composition comprising a colorant, water, a water-soluble organic solvent, and a fine particle of a polymer, the polymer constituting the fine particle having a film-forming property and, at the same time, an ultraviolet absorbing capacity and/or a light stabilizing capability;
  • Japanese Patent application 11-315,234 discloses an ink composition containing a triazine compound and a sterically hindered amine compound;
  • Japanese Patent application 05-239,389 discloses a recording liquid comprising a dye, pure water and a light stabilizer capable of obtaining high-grade stabilized images.
  • a transferring protective covering material comprising a fluorescent whitening agent, an ultraviolet light absorber, and a light stabilizer to cover a printed image
  • US 4,756,963 discloses a transferring protective covering material comprising a flexible substrate, an adhesive layer containing a light stabilizer and a solid resin layer.
  • EP 1,186,439 discloses a surface treatment method for recorded matter, such as images recorded on a recording medium and the recording medium that contains such images, which can improve the weather characteristics of the images, such as light resistance and' gas resistance. This method is characterized by subjecting the recorded matter to an after- treatment, such as spray treatment, coating treatment, immersion treatment, to form an overcoat layer applied onto the surface of the recorded matter.
  • This overcoat layer contains an aqueous solution containing a water-soluble resin, a light resistance improving agent and an ink fixing agent; the overcoat layer protects the surface of the recorded matter preventing the gas present in the air to penetrate into the recorded matter, and thus improving the color fading due to light and gas presence.
  • a re-wet liquid solution applied to a dried porous basecoat is disclosed, for example, in US 6,475,612, US 6,432,523 and US 6,423,375, wherein a process that allows the production of multi-layer ink-receiving materials in which one or more topcoats can be applied to a porous basecoat comprising a plurality of pores to produce a uniform and defect-free coating layer is disclosed.
  • both the after- treatment solution and the re-wetting solution described above involve the use of a treatment agent; this means that the treatment agent must be incorporated into an additional composition to form the protective layer to be sprayed or coated onto the surface of the recorded matter, before or after that he image is obtained, with the consequent problems related to choose the proper elements contained in the additional composition, how to introduce and mix them, how to store and treat the final composition, and so on.
  • EP 1,120,281 discloses an ink-jet recording material comprising pigment particles dispersed in a binder with average particle size of 1 micron or less.
  • the ink receiving layer comprises light resistant enhancing agents for image selected from phenolic compounds, boric acid, borate salts and cyclodextrin compounds.
  • EP 1,008,457 and US 6,391,428 disclose an ink-jet recording sheet having an image preserving layer comprising anionic colloidal silica and zinc oxide particles; the ink receiving layer also comprises specific sterically hindered amines compounds having alkoxy groups.
  • WO 2002-055,618 discloses the use of specific water soluble sterically hindered amine compounds which contain an oxyl or hydroxyl group on the nitrogen atom
  • EP 1,031,431 discloses a recording medium comprising a specific sterically hindered amine compound having an alkyl group bonded to nitrogen atom of a piperidine ring with interposition of oxygen
  • EP 1,134,087 discloses a recording medium comprising an ink receiving layer containing specific sterically hindered amine compounds exhibiting solubility in water of 0.01 to 5%
  • Japanese Patent applications 61-146,591; 11-245,504 and 2000-247,015 describe recording sheets containing specific sterically hindered amine compounds which show improved light fastness and water resistance.
  • ink-jet receiving materials containing color fading inhibitor compounds incorporated in the same layers containing filler such as alumina hydrate or silica compounds
  • filler such as alumina hydrate or silica compounds
  • ink-jet recording material which improves weather storage characteristics over time, such as air resistance, preventing oxidation deterioration of coloring matter component of the printed image during long term exposure to natural air, without causing coating problems and coating defects.
  • the present invention refers to an ink-jet recording material comprising a support, and at least one ink receiving porous layer coated on the support, wherein at least one porous layer comprises, dispersed therein, a solution of a color fading inhibitor compound in an organic solvent having a logP value higher than 2.00.
  • the color fading inhibitor compound useful in the present invention is represented by the following Formula I
  • R 1 to R 10 being the same or different, each is an alkyl group having from 1 to 5 carbon atoms;
  • X is a divalent linking group;
  • Z is Y or is an alkyl group having from 1 to 12 carbon atoms, and Y is represented by formula II,
  • R 11 and R 12 each being an alkyl group having from 1 to 6 carbon atoms.
  • the color fading inhibitor compounds of Formula I are suitable to improve the weather storage characteristics over time, such as gas resistance, preventing oxidation deterioration of coloring matter component of the printed image during long term exposure to natural air.
  • the ink-jet recording material of the present invention allows to obtain colored printed images which are not altered over the time, i.e. a yellowing change is not noted in the printed or not printed images.
  • the ink receiving porous layer comprises, dispersed therein, a solution of a color fading inhibitor compound in an organic solvent having a logP value higher than 2.00.
  • the color fading inhibitor compound useful in the present invention is represented by the above described Formula I.
  • Ri to Ri 0 being the same or different, each represents a straight or branched alkyl group having from 1 to 5 carbon atoms, such as, for example, methyl group, trifluoromethyl group, ethyl group, propyl group, isopropyl group, butyl group, tert.-butyl group.
  • Preferred examples of alkyl groups represented by Ri to Rio are methyl groups or ethyl groups.
  • X when present, is a divalent linking group, such as, for example, alkylene groups with straight, branched or cyclic chain, arylene groups, aralkylene groups, oxy, oxo, thio, sulfonyl, sulfoxy, amino, imino, sulfonamido, carbonamido, carbonyloxy, urethanylene and ureylene and combinations thereof such as sulfonamidoalkylene or carbonamidoalkylene; m and n, equal or different, are 0, 1 or 2.
  • Preferred examples of divalent linking groups are alkylene groups.
  • Z can be represented by Formula II or by an alkyl group having from 1 to 12 carbon atoms, such as, for example, methyl group, trifluoromethyl group, ethyl group, propyl group, isopropyl group, butyl group, tert.-butyl group, pentyl group, octyl group, nonyl group.
  • alkyl groups represented by Z are alkyl groups having froml to 6 carbon atoms.
  • Rn and R 12 each represents a straight or branched alkyl group having from 1 to 6 carbon atoms, such as, for example, methyl group, trifluoromethyl group, ethyl group, propyl group, isopropyi group, butyl group, tert.-butyl group, pentyl group, hexyl group.
  • alkyl groups represented by Ri i and R [2 are methyl groups, ethyl groups, butyl group or tert.-butyl groups. More preferred color fading inhibitor compounds useful in the present invention are represented by the following Formula III:
  • AIk is an alkyl group having from 1 to 12 carbon atoms, such as, for example, methyl group, trifluoromethyl group, ethyl group, propyl group, isopropyl group, butyl group, tert.-butyl group, pentyl group, hexyl group.
  • Preferred examples of alkyl groups represented by AIk are alkyl groups having from 1 to 6 carbon atoms, such as, for example are methyl groups, ethyl groups, butyl group or tert.-butyl groups.
  • the term "group" is used to define a chemical compound or substituent, the described chemical material comprises the basic group, ring or residue and that group, ring or residue with conventional substitutions.
  • the term “units” is used, only the chemical unsubstituted material is intended to be included.
  • the term “alkyl group” comprises not only those alkyl units such as methyl, ethyl, butyl, octyl, stearyl, etc., but even those units bearing substituents such as halogen atoms, cyano, oxydryl, nitro, amino, carboxilate, solfate or sulfonate groups.
  • alkyl units on the contrary comprises only methyl, ethyl, stearyl, cyclohexyl.
  • color fading inhibitor compounds particularly useful in the present invention are represented by, but not limited to, the following examples.
  • the color fading inhibitor compounds useful in the present invention have a solubility in water lower than 0.01%. They are incorporated into the porous layer of the ink-jet recording material of the present invention by first dissolving the color fading inhibitor compound in an organic solvent having a logP value higher that 2.00, and by then incorporating the resulting solution into the porous layer.
  • the degree of hydrophobicity of an organic solvent can be correlated with its
  • octanol/water partition coefficient P The octanol/water partition coefficient of a compound is the ratio between its equilibrium concentration in octanol and in water. An organic solvent with a greater partition coefficient P is considered to be more hydrophobic. Conversely, an organic solvent with a smaller partition coefficient P is considered to be more hydrophilic. Since the partition coefficients of the organic 0 solvents normally have high values, they are more conveniently given in the form of their logarithm to the base 10, logP. Thus the organic solvents used in this invention have a logP value higher than 2.00, preferably in the range of from 2.00 to 12.00, and more preferably in the range of from 2.00 to 9.00.
  • the logP values of many organic solvents have been reported. However, the 5 logP values are most conveniently calculated by several software program, such as, for example, "LogP” from Advanced Chemistry Design Inc., “CLOGP” and “Bio-Loom” from Biobyte, Claremont, California, USA, "ACDLOGP” from Advanced Chemistry Developments, Toronto, Canada, or “KOWWIN” from the U.S. Environmental Protection Agency.
  • the calculated logP value is determined by the fragment approach 0 of Hansch and Leo (cf., A. Leo, in Comprehensive Medicinal Chemistry, Vol. 4, C. Hansen, P. G. Sammens, J. B. Taylor and C. A. Ramsden, Eds., p. 295, Pergamon Press, 1990).
  • the fragment approach is based on the chemical structure of each organic solvent, and takes into account the numbers and types of atoms, the atom connectivity, and chemical bonding.
  • the calculated logP values which are the most 5 reliable and widely used estimates for this physicochemical property, are used instead of the experimental logP values in the selection of organic solvents which are useful in the present invention.
  • Organic solvents having a calculated logP value higher than 2.00 useful in the present invention can be, for example, alkyl substituted phenols, esters of aromatic 0 carboxylic acids with alcohols, esters of aromatic carboxylic acids and polyols, amides of aromatic carboxylic acid and aliphatic amines, and amides of aliphatic carboxylic acid and aromatic amines.
  • the preferred organic solvents useful in the present invention can be represented by the following Formulas Ha, lib, Hc, and Hd: wherein R is a linear or branched alkyl group having from 1 to 10 carbon atoms, and n in an integer from 1 to 5, o
  • R 1 and R 2 are linear or branched alkyl groups having from 2 to 25 carbon atoms, o
  • R 3 , R 4 and R 5 are linear or branched alkyl groups having from 1 to 20 carbon atoms, and
  • R 6 is a linear or branched alkyl group having from 1 to 10 carbon atoms
  • R 7 is a n-valent linear or branched alkylene group having from 1 to 20 carbon atoms
  • n is an integer from 2 to 4.
  • Useful organic solvents represented by formula Ha above are in particular di- or trialkylphenols, the alkyl groups of which together contain at least 4 carbon atoms, such as, for example 2,6-diethylphenol, 2-ethyl-4-propylphenol, 2,6-dipropylphenol, 2,6-diisopropylphenol, 2,4-dibutylphenol, 2-tert-butylphenol, 2,4-di-tert-butylphenol, 2,6-dibutylphenol, 2,6-di-tert-butylphenol, 2,6-di-tert-butyl-4-methylphenol, 2-tert- butyl-4,6-dimethylphenol, 2,6-di-tert-butyl-4-ethylphenol, 2,6-di-tert-butyl-4-n- butylphenol, 2,6-di-tert-butyl-4-sec-butylphenol, 2,6-dicyclopentyl-4-methylphenol,
  • Useful organic solvents represented by formula lib above are in particular alkyl phthalates, the alkyl groups of which together contain at least 4 carbon atoms, such as, for example, dibutyl phthalate, diundecyl phthalate, bis(2-ethylhexyl) phthalate, dioctylphthalate, dicyclohexylphthalate, bis(2-ethylhexyl)phthalate, decylphthalate, bis(2,4-di-tert-amylphenyl)isophthalate, and bis(l,l- diethylpropyl)phthalate), and the like.
  • alkyl phthalates the alkyl groups of which together contain at least 4 carbon atoms
  • alkyl phthalates such as, for example, dibutyl phthalate, diundecyl phthalate, bis(2-ethylhexyl) phthalate, dioctylphthalate, dicyclohexylphthalate
  • Useful organic solvents represented by formula Hc above are in particular phenylalkylamides, such as, for example, N-methyl-N-phenylacetamide, N-propyl-N- phenylacetamide, N-butyl-N-phenylacetamide, N-methyl-N-phenylpropionamide, N- propyl-N-phenylpropionamide, N-isobutyl-N-phenylpropducnide, N-butyl-N- phenylhexanoamide, N-methyl-N-(4-methylphenyl)acetamide, N-isopropyl-N-(4- methylphenyl)acetamide, and the like.
  • phenylalkylamides such as, for example, N-methyl-N-phenylacetamide, N-propyl-N- phenylacetamide, N-butyl-N-phenylacetamide, N-methyl-N-phenylpropionamide, N- prop
  • Useful organic solvents represented by formula Hd above are in particular 1,3- propanediol-dibenzoate, 1,4-butanediol-dibenzoate, 1,3-butanediol-dibenzoate, 1,5- pentanediol-dibenzoate, l,4-butanediol-2-methyl-dibenzoate, 1,2,3-propanetriol- tribenzoate, 1 ,3-propanediol-2,2-dimethyl-dibenzoate, pentaerythritol-tetrabenzoate, l,4-butanediol(2-hydroxymethylbenzoate)-dibenzoate, pinacol-dibenzoate, and the Hike.
  • the LogP values shown in the table above are calculated by using the KOWWINTM v.1.66 software (owned by the U.S. Environmental Protection Agency).
  • the color fading inhibitor compound is first dissolved in the water-immiscible organic solvent.
  • a low boiling auxiliary solvent such as, for example, ethyl acetate, toluene, methanol, tetrahydrofuran, and the like, can be used to facilitate and/or improve the dissolution of the mixture and/or to reduce the viscosity of the solution.
  • the obtained organic solvent solution is then added to an aqueous solution of a hydrophilic colloid binder and the mixture is emulsified by means of dispersing apparatus (such as a colloidal mill, a homogeneyzer and the like) in the presence of a dispersing agent (generally a surface active agent, such as an anionic surfactant, a nonionic surfactant, a cationic surfactant or a mixture thereof), said dispersing agent being preferably contained in the hydrophilic colloid binder solution.
  • a dispersing agent generally a surface active agent, such as an anionic surfactant, a nonionic surfactant, a cationic surfactant or a mixture thereof
  • the obtained dispersion is then added to the coating composition which is used for forming the porous layer.
  • the amount of the color fading inhibitor compound comprised in the porous layer used in the present invention is generally in the range from 0.1 to 10.0 g/m 2 , preferably from 0.3 to 4.0 g/m , and most preferably from 0.5 to 3.0 g/m .
  • the amount of the organic solvents comprised in the porous layer used in the present invention is generally in the range from 0.1 to 20.0 g/m 2 , preferably from 0.5 to 10.0 g/m 2 , most preferably from 1.0 to 5.0 g/m 2 .
  • the inorganic pigment fine particles comprised in the ink receiving porous layer may be inorganic pigment fine particles which are insoluble or hardly soluble in water.
  • the inorganic pigment fine particles can be exemplified by inorganic pigments such as calcium carbonate, kaolin, talc, calcium sulfate, barium sulfate, titanium dioxide, zinc oxide, zinc carbonate, aluminum silicate, alumina hydrate, magnesium silicate, calcium silicate and silica, any of which may be used alone and also in combination.
  • inorganic pigments such as calcium carbonate, kaolin, talc, calcium sulfate, barium sulfate, titanium dioxide, zinc oxide, zinc carbonate, aluminum silicate, alumina hydrate, magnesium silicate, calcium silicate and silica, any of which may be used alone and also in combination.
  • Pigments particularly preferable from the viewpoint of ink absorptivity and image suitability such as image resolution include alumina hydrate, silica and calcium carbonate.
  • Alumina hydrate may be represented by the formula Al 2 O 3 -UH 2 O; specifically, the alumina hydrate may be, for example, gibbsite, bayerite, nordstrandite, boehmite, diaspore or pseudoboehmite.
  • Alumina hydrate, and in particular boehmite or pseudo- boehmite, (wherein n is from 1.0 to 2.0) is preferably, used in the ink-jet recording material used in the present invention.
  • the alumina hydrate, as described for example in EP patent application No. 636,489, can be produced by any conventional method such as the hydrolysis of aluminum alkoxide or sodium aluminate. Rocek, et al. [Collect Czech. Chem.
  • the shape of the alumina hydrate can be in the form of a needle or in the form of a flat plate (as described in the literature by Rocek J., et al., Applied Catalysis, Vol. 74, 29-36 (1991), the latter being particularly preferred for the reasons that better dispersibility can be obtained and because the orientation of particles of the alumina hydrate in the form of a flat plate becomes random when forming an ink receiving layer, so that the range of the pore radius distribution widens.
  • the average particle diameter of the alumina hydrate is preferably in the range from 10 to 200 nm, and more preferably from 50 to 150 nm.
  • the ink receiving layer preferably comprises from 10 to 80 g/m 2 , more preferably from 15 to 60 g/m 2 of alumina particles.
  • the silica may include natural silica, synthetic silica, amorphous silica, and chemically modified silica compounds, any of which may be used without any particular limitations, but particularly preferable is synthetic fine particulate silica with a specific surface area having preferably from 20 to 700 g/m 2 according to the BET method, and by use of the silica with such specific surface area, excellent color forming characteristic of the water-soluble dye in ink, optimum shape and size of ink dots can be accomplished.
  • Silica particles are described, for example, in US 5,612,281 and EP 813,978, which disclose ink-jet recording materials using synthetic silica fine particles prepared by a gas phase process, giving ultrafme particles having an average particle size from several nm to several tens nm, and having characteristics of giving high glossiness and high ink-absorption properties.
  • a method for producing a positively charged colloidal silica sol is also disclosed, for example, in EP 1,112,962 and JP-B-47-26959, the method comprising coating the silica surface with alumina. By this method, it is possible to obtain a silica sol having the surface coated with alumina, which is excellent in transparency and stability.
  • the content of silica should preferably be at least 10 wt%, more preferably at least 30 wt% in the ink receiving porous layer.
  • the calcium carbonate may include heavy calcium carbonate, light calcium carbonate and colloidal calcium carbonate, any of which may be used.
  • the binder to be used in the porous layer may be any known natural or synthetic resin binder, such as, for example, a hydrophilic binder, such as polyvinyl alcohol, silanol modified polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl acetate, oxidized starch, etherified starch, a cellulose derivative such as carboxymethyl cellulose or hydroxyethyl cellulose, casein, gelatin, acidic gelatin, soybean protein or, maleic anhydride resin, a copolymer latex of conjugated diene type such as a styrene- butadiene copolymer or a methylmethacrylate-butadiene copolymer; an acrylic polymer latex of acrylic type such as a polymer or a copolymer of acrylic ester or methacrylic ester, or a polymer or a copolymer of acrylic acid or methacrylic acid; a polymer latex of vinyl type such as an ethylene-
  • the ink receiving porous layer preferably comprises from 0,1 to 10 g/m 2 , more preferably from 2 to 8 g/m 2 of binder.
  • the content of the binder is preferably from 1 to 50 parts by weight, and more preferably from 2 to 25 parts by weight, per 100 parts by weight of the inorganic pigment particles present in the ink receiving porous layer.
  • the ink receiving porous layer can optionally comprise boric acid or borates.
  • boric acid not only orthoboric acid but also metaboric acid and hypoboric acid may be used.
  • borates soluble salts of these boric acids are preferably employed. Specifically, Na 2 B 4 O 7 -IOH 2 O, NaBO 2 -4H 2 O, K 2 B 4 O 7 -5H 2 O, KBO 2 , NH 4 B 4 O 9 -3H 2 O and NH 4 BO 2 may, for example, be mentioned.
  • the ink receiving porous layer preferably comprises from 0.05 to 5.0 g/m 2 , more preferably from 0.1 to 2.0 g/m 2 of boric acid or borate.
  • the ink receiving porous layer of the recording material preferably comprises at least a surfactant.
  • surfactants include anionic surfactants, cationic surfactants, amphoteric surfactants, and non-ionic surfactants.
  • Anionic surfactants comprise an anionic group, such as a carboxyl group, a sulfo group, a phospho group, a sulfuric acid ester group, a phosphoric acid ester group joined to a long chain aliphatic residue.
  • anionic surfactants are, for example, alkylcarboxylates, alkylsulfates, alkylsulfhonates, aralkyl sulfonates, alkylbenzenesulfonates, alkylnaphthalenesulfonates, alkylsulfuric acid esters, alkylphosphoric acid esters, n-acyl-n-alkyltaurines, sulfosuccinic acid esters, sulfoalkylpolyoxyethylene alkylphenyl ether and polyoxyethylene alkylphosphoric acid esters.
  • cationic surfactants include 2-vinylpyridine derivatives and poly-4-vinylpyridine derivatives.
  • amphoteric surfactants examples include lauryl dimethyl aminoacetic acid betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, propyldimethylaminoacetic acid betaine, polyoctylpoly- aminoethyl glycine, and imidazoline derivatives.
  • non-ionic surfactants include non-ionic fluorinated surfactants and non-ionic hydrocarbon surfactants.
  • non-ionic hydrocarbon surfactants include ethers, such as polyoxyethylene nonyl phenyl ethers, polyoxyethylene octyl phenyl ethers, polyoxyethylene dodecyl phenyl ethers, polyoxyethylene alkyl allyl ethers, polyoxyethylene oleyl ethers, polyoxyethylene lauryl ethers, polyoxyethylene alkyl ethers, polyoxyalkylene alkyl ethers; esters, such as polyoxyethylene oleate, polyoxyethylene distearate, sorbitan laurate, sorbitan monostearate, sorbitan monooleate, sorbitan sesquioleate, polyoxyethylene monooleate, and polyoxyethylene stearate; and glycol surfactants.
  • ethers such as polyoxyethylene nonyl phenyl ethers, polyoxyethylene octyl phenyl ethers, polyoxyethylene dodecyl phenyl ethers,
  • non-ionic surfactants include octylphenoxy polyethoxy ethanols, such as TritonTMX-100, X-114, and X-405, available from Union Carbide Co., Danbury, Conn.; acetylenic diols such as 2,4,7,9- tetramethyl-5-decyl-4,7-diol and the like, such as SurfynolTMGA and SurfynolTMCT- 136,available from Air Products & Chemicals Co., Allentown, Pa., trimethyl nonylpolyethylene-glycol ethers, such as TergitolTMTMN-10 (containing 10 oxyethylene units, believed to be of formula Ci 2 H 25 O(C 2 H 4 O) 5 H), available from Union Carbide Co., Danbury, Conn.; non-ionic esters of ethylene oxide, such as MerpolTMSH(believed to be of formula CH 3 (CH 2 ) 12 (OC 2 H 4 ) 8 OH),
  • non-ionic esters of ethylene oxide and propylene oxide such as MerpolTMLFH(believed to be of formula CH 3 (CH 2 ) n (OC 2 H 4 ) 8 (OC 3 H 6 ) 8 OH, where n is an integer from about 12 to about 16), available from E.I. Du Pont de Nemours & Co., Wilmington, Del., and the like, as well as mixtures thereof.
  • Non-limiting examples of non-ionic fluorinated surfactants include linear perfluorinated polyethoxylated alcohols (e.g., ZonylTMFSN, ZonylTMFSN-100, ZonylTMFSO,and ZonylTMFSO-100available from DuPont Specialty Chemicals, Wilmington, Del.), fluorinated alkyl polyoxyethylene ethanols (e.g., FluoradTMFC-170C available from 3M, St. Paul, MN), fluorinated alkyl alkoxylates (e.g., FluoradTMFC-171 available from 3M, St.
  • linear perfluorinated polyethoxylated alcohols e.g., ZonylTMFSN, ZonylTMFSN-100, ZonylTMFSO,and ZonylTMFSO-100available from DuPont Specialty Chemicals, Wilmington, Del.
  • fluorinated alkyl polyoxyethylene ethanols e.g.,
  • fluorinated alkyl esters e.g., FluoradTMFC-430, FC-431, and FC-740 available from 3M, St. Paul, MN
  • fluorine-substituted alkyl esters and perfluoroalkyl carboxylates for example, the F-tergentseries manufactured by Neos Co., Ltd., the Lodyneseries manufactured by Ciba-Geigy, the Monfiorseries manufactured by ICI, the Surfluonseries manufactured by Asahi Glass Co., Ltd., and the Unidyneseries manufactured by Daikin Industries, Ltd.
  • Preferred surfactants are nonionic surfactants, such as, for example, TritonTMX-100, ZonylTMFSO, FluoradTMFC-170C, and FluoradTMFC-171.
  • the ink receiving porous layer comprises from 0.01 to 5.00 g/m 2 of the surfactants, preferably from 0.05 to 1.00 g/m 2 .
  • dispersant agents can be added to the ink receiving porous layer.
  • the support used in the ink-jet recording material of the invention includes any conventional support for ink jet recording sheet.
  • a transparent or opaque support can be used according to the final use of the ink jet recording sheet.
  • Any conventional transparent support such as a film or plate of polyester resins, cellulose acetate resins, acryl resins, polycarbonate resins, polyvinyl chloride resins, poly(vinylacetals), polyethers, polysulfonamides, polyamide resins, polyimide resins, cellophane or celluloid and a glass plate can be used.
  • Any conventional opaque support such as paper, coat paper, synthetic paper, resin- covered paper, pigment-containing opaque film or foaming film can be used.
  • the thickness of the support is preferably from 10 to 200 micrometer.
  • the support may be subjected to a surface treatment such as a corona discharge treatment for improving its adhesiveness to the layers coated thereon, or provided with a layer improving its adhesion, such as a subbing layer.
  • a curl- preventing layer such as a resin layer or a pigment layer may be provided on the back surface of the support or at a desired position thereof to prevent curling.
  • a non-porous layer can be optionally coated on the support as an interlayer between the support and the porous layer.
  • the non-porous layer comprises a binder, at least one surfactant, and optionally, dispersant agents, thickening agents, pH adjustor agents, lubricants, fluidity modifier agents, surface activators, waterproof agents, whitening agents, ultraviolet absorbing agents, antioxidants, and hardening agents.
  • the binder of the non-porous layer may be chosen from the list of the binders cited above to be used in the ink receiving porous layer.
  • Preferred binders used in the non-porous layer are gelatin, polyvinyl alcohol and polyvinylpyrrolidone.
  • Useful surfactants to be used in the ink receiving non-porous layer may be chosen from the list of the surfactants cited above to be used in the ink receiving porous layer.
  • the preferred surfactants are nonionic surfactants, such as, for example, TritonTMX-100, ZonylTMFSO, FluoradTMFC-170C, and FluoradTMFC-171.
  • any conventional coating process can be used to coat the porous layer (and, optionally, the non-porous layer) on the support, such as, for example, a blade coating system, air-knife coating system, roll coating system, brush coating system, gravure coating system, bar coating system, extrusion coating system, slide coater system, curtain coating system, or the like.
  • the extrusion coating system and the slide coating system are particularly preferred to obtain by one pass a coating of proper and uniform thickness.
  • a slide coater as described, for example, in US patent No. 2,761,419, is a multilayer die composed of a pack of elements, where distribution cavities are formed between each pair of elements.
  • Coating liquids are laterally or centrally fed in the distribution cavities and uniformly spread through a slot, at which end they flow down an inclined plane, stacking in a multilayer stack. At the end of the slide, at a short distance from the edge (about 100-500 microns), the liquid meets and coats the moving web.
  • Sample 1 (reference).
  • An ink-jet recording material was obtained by slide coating on the top of a 214g/m 2 resin coated paper support a porous layer comprising, as dry coverage per square meter, 35g of DisperalTMHP14 (an alumina hydrate manufactured by Condea Gmbh, Hamburg, Germany), 4.38g of CelvolTM523 (a polyvinyl alcohol manufactured by Celanese AG, Kronberg/Taunus, Germany, having a saponification degree of 88 %, and a polymerization degree of 1,500), 1.15g of acetic acid, 0.9g of boric acid, 0.14g of TritonTMX-100 (a non-ionic surfactant available from Union Carbide Co., Danbury, Conn) and 0.029g of ZonylTMFSN-100 (a non-ionic fluorinated surfactant manufactured by DuPont Specialty Chemicals, Wilmington, Del.).
  • the wet resulting coating was dried and the resulting ink receiving por
  • Sample 2 (Invention) was prepared as Sample 1, but the preparation used to get the porous layer of Sample 1 was mixed to the emulsion A just before slide coating in order to obtain a porous layer comprising, as dry coverage per square meter, 1.5 g of Tinuvin 144 (available from Ciba Specialty Chemicals Inc, Basel, Switzerland), 2.25 g of 2,4 di-tert-amylphenol, 35.0 g of DisperalTMHP14, 5.73 g of CelvolTM523, 1.15 g of acetic acid, 0.9g of boric acid, 0.234g of TritonTMX-100, and 0.029g of ZonylTMFSN-100.
  • Tinuvin 144 available from Ciba Specialty Chemicals Inc, Basel, Switzerland
  • DisperalTMHP14 3.73 g of CelvolTM523, 1.15 g of acetic acid, 0.9g of boric acid, 0.234g of TritonTMX-100, and 0.029g of ZonylTMF
  • Sample 3 (invention) was prepared as Sample 2 S but emulsion A was replaced by emulsion B and the resulting porous layer comprised, as dry coverage per square meter, 1.5 g of Tinuvin 144, 3 g of bis(2-ethylhexyl) phthalate, 35.0 g of DisperalTMHP14, 5.73 g of CelvolTM523, 1.15 g of acetic acid, 0.9g of boric acid, 0.234g of TritonTMX-100, and 0.029g of ZonylTMFSN-100.
  • Sample 4 (invention) was prepared as Sample 2, but emulsion A was replaced by emulsion C and the resulting porous layer comprised, as dry coverage per square meter, 1.5 g of Tinuvin 144, 3 g of N-butyl-N-phenylacetamide, 35 g of DisperalTMHP14, 5.73 g of CelvolTM523, 1.15 g of acetic acid, 0.9 g of boric acid, 0.234 g of TritonTMX-100, and 0.029 g of ZonylTMFSN-100.
  • Sample 5 (invention) was prepared as Sample 2, but emulsion A was replaced by emulsion D and the resulting porous layer comprised, as dry coverage per square meter, 1.5 g of Tinuvin 144, 3 g of neopentylglycoldibenzoate, 35.0 g of DisperalTMHP14, 5.73 g of CelvolTM523, 1.15 g of acetic acid, 0.9g of boric acid, 0.234g of TritonTMX-100, and 0.029g of ZonylTMFSN-100.
  • Sample 6 (invention) was prepared as Sample 2, but emulsion A was replaced by emulsion E and the resulting porous layer comprised, as dry coverage per square meter, 1.5 g of Tinuvin 144, 4.5 g of 2,4 di-tert-amylphenol, 35.0 g of DisperalTMHP14, 7.11 g of CelvolTM523, 1.15 g of acetic acid, 0.9g of boric acid, 0.328g of TritonTMX-100 and 0.029g of ZonylTMFSN-100.
  • Emulsions A to E were prepared by mixing in a dispersing apparatus the ingredients reported in the following Table 1.
  • Samples 1 to 6 of the present invention showed a coating quality comparable to the coating quality of reference Sample 1.
  • no incompatibility occured and the resulting material did not show any coating defect.
  • any other tentative of incorporating Tinuvin 144 into the layer comprising alumina caused coating incompatibilities (such as, for example, the formation of clots in the coating composition) or coating defects (such as, for example, the formation of woven layers).
  • Samples 1 to 6 have been printed and submitted to 8 incubation weeks to check the resistance of the image to air deterioration according to the following procedure.
  • a solid image pattern including 7 colored patches (cyan, magenta, yellow, red, green, blue and black patches) was printed on the test sheet by a Deskjet 970 ink- jet printer (manufactured by Hewlett-Packard Co., Palo Alto, California) with the original ink-jet cartridges made by Hewlett-Packard.
  • the reflection density of recorded patches was measured for each, single color cyan, magenta, yellow and for each component of the red, green, blue and black area, with a TR 1224 densitometer
  • the patch area exhibiting a density near 1.00 was selected for each single color cyan, magenta and yellow; on the other hand, for the red, green and blue composite colors, it was considered each respective two components to choose the respective density 1.00 area; finally, the three components to choose the respective density 1.00 area were considered for the black composite color.
  • the samples were submitted to a 2 Klux intensity fluorescent light exposure, at 50% relative humidity and 23°C. The atmosphere air composition was maintained stable during all the test, in particular for the oxygen and H 2 S, SO 2 , NO 2 and O 3 gases present in little amounts.
  • the recorded sample surface was maintained free of any physical protection to allow the natural air circulation. After incubation, the density was again measured for each selected area in which an initial density near 1.00 had been measured; consequently, the air oxidation resistance of the image could be evaluated.
  • Air oxidation image resistance evaluation was performed considering the rate of density lost calculated with the formula :
  • DP A i Density of Printed area After Incubation
  • DUAI Density of Unprinted area After Incubation
  • DPBI Density of Printed area Before Incubation
  • DPBI Density of Unprinted area Before Incubation
  • M red lost rate % of Magenta component in red area
  • Yred lost rate % of Yellow component in red area
  • optical density lost percentage data obtained from the procedure described above determine the air color fading of the ink-jet recording materials.
  • Table 3 reports the results in terms of average optical density lost percentage after that samples 1 to 6 were stored for 8 incubation weeks, respectively.

Abstract

L'invention concerne un matériau d'impression à jet d'encre comprenant un support et au moins une couche poreuse de réception d'encre disposée par-dessus le support. Ladite couche poreuse au moins contient, sous forme dispersée, une solution d'un composé inhibiteur de dégradation de couleur dans un solvant organique présentant une valeur logP supérieure à 2. Le composé inhibiteur de dégradation de couleur utilisé dans la présente invention est représenté par la formule I suivante : (I), dans laquelle R1 à R10, qu'ils soient identiques ou différents, représentent chacun un groupe alkyle contenant de 1 à 5 atomes de carbone; X représente un groupe de liaison divalent; m et n, égaux ou différents, représentent 0, 1 ou 2; Z représente Y ou un groupe alkyle contenant de 1 à 12 atomes de carbone, et Y est représenté par la formule II, dans laquelle R11 et R12 représentent chacun un groupe alkyle contenant de 1 à 6 atomes de carbone.
PCT/EP2005/006545 2004-06-25 2005-06-17 Materiau d'impression a jet d'encre WO2006002780A2 (fr)

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ITSV20040028 ITSV20040028A1 (it) 2004-06-25 2004-06-25 Materiale per registrazione a getto d'inchiostro
ITSV2004A000028 2004-06-25

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WO2006002780A3 WO2006002780A3 (fr) 2008-12-24

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636489A1 (fr) 1993-07-30 1995-02-01 Canon Kabushiki Kaisha Elément d'enregistrement, méthode d'enregistrement à jet d'encre en utilisant cela, empreinte obtenue selon cela, et dispersion et procédé de production d'élément d'enregistrement en utilisant la dispersion
EP0813978A1 (fr) 1996-06-20 1997-12-29 Konica Corporation Feuille pour l'enregistrement par jet d'encre
EP1008457A1 (fr) 1998-12-02 2000-06-14 Nippon Paper Industries Co., Ltd. Feuille pour l'enregistrement par jet d'encre avec une couche protectrice d'images
EP1031431A2 (fr) 1999-02-23 2000-08-30 Canon Kabushiki Kaisha Matériau d'enregistrement et procédé de formation d'image l'utilisant
JP2000247015A (ja) 1999-02-26 2000-09-12 Oji Paper Co Ltd インクジェット記録用シート
EP1112962A2 (fr) 1999-12-27 2001-07-04 Asahi Glass Company Ltd. Support d'enregistrement à haute absorption d'encre, son procédé de préparation et procédé de préparation d'un sol composite silice-alumine
EP1120281A1 (fr) 2000-01-28 2001-08-01 Oji Paper Company Limited Matériau d'enregistrement à jet d' encre
EP1134087A2 (fr) 2000-01-26 2001-09-19 Seiko Epson Corporation Matériau d'enregistrement, procédé de formation d'image, et produit obtenu par ce procédé

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0373573B1 (fr) * 1988-12-14 1994-06-22 Ciba-Geigy Ag Matériel d'enregistrement pour l'impression par jet d'encre
DE19747884A1 (de) * 1997-10-30 1999-05-06 Agfa Gevaert Ag Inkjet-Aufzeichnungsmaterial
IT1309922B1 (it) * 1999-09-03 2002-02-05 Ferrania Spa Foglio recettore per stampa a getto di inchiostro comprendentesolvente organico altobollente e tensioattivo non ionico.
US6613418B2 (en) * 2000-06-06 2003-09-02 Mitsubishi Paper Mills Limited Ink-jet recording material and use of the same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636489A1 (fr) 1993-07-30 1995-02-01 Canon Kabushiki Kaisha Elément d'enregistrement, méthode d'enregistrement à jet d'encre en utilisant cela, empreinte obtenue selon cela, et dispersion et procédé de production d'élément d'enregistrement en utilisant la dispersion
EP0813978A1 (fr) 1996-06-20 1997-12-29 Konica Corporation Feuille pour l'enregistrement par jet d'encre
EP1008457A1 (fr) 1998-12-02 2000-06-14 Nippon Paper Industries Co., Ltd. Feuille pour l'enregistrement par jet d'encre avec une couche protectrice d'images
EP1031431A2 (fr) 1999-02-23 2000-08-30 Canon Kabushiki Kaisha Matériau d'enregistrement et procédé de formation d'image l'utilisant
JP2000247015A (ja) 1999-02-26 2000-09-12 Oji Paper Co Ltd インクジェット記録用シート
EP1112962A2 (fr) 1999-12-27 2001-07-04 Asahi Glass Company Ltd. Support d'enregistrement à haute absorption d'encre, son procédé de préparation et procédé de préparation d'un sol composite silice-alumine
EP1134087A2 (fr) 2000-01-26 2001-09-19 Seiko Epson Corporation Matériau d'enregistrement, procédé de formation d'image, et produit obtenu par ce procédé
EP1120281A1 (fr) 2000-01-28 2001-08-01 Oji Paper Company Limited Matériau d'enregistrement à jet d' encre

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