EP1393922B1 - Matériau pour l'enregistrement par jet d'encre - Google Patents

Matériau pour l'enregistrement par jet d'encre Download PDF

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Publication number
EP1393922B1
EP1393922B1 EP02102221A EP02102221A EP1393922B1 EP 1393922 B1 EP1393922 B1 EP 1393922B1 EP 02102221 A EP02102221 A EP 02102221A EP 02102221 A EP02102221 A EP 02102221A EP 1393922 B1 EP1393922 B1 EP 1393922B1
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EP
European Patent Office
Prior art keywords
ink jet
ink
jet recording
recording material
pigment
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EP02102221A
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German (de)
English (en)
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EP1393922A1 (fr
Inventor
Huub c/o AGFA-FEVAERT Van Aert
Stefaan c/o Agfa-Gevaert Lingier
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Agfa Gevaert NV
Agfa Gevaert AG
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Agfa Gevaert NV
Agfa Gevaert AG
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Priority to EP02102221A priority Critical patent/EP1393922B1/fr
Priority to DE2002620520 priority patent/DE60220520T2/de
Priority to US10/440,907 priority patent/US6924011B2/en
Priority to JP2003298791A priority patent/JP2004106527A/ja
Publication of EP1393922A1 publication Critical patent/EP1393922A1/fr
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Classifications

    • 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
    • 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

Definitions

  • the present invention relates to an improved ink jet recording material.
  • ink jet printing has become a popular technique because of its simplicity, convenience and low cost. Especially in those instances where a limited edition of the printed matter is needed ink jet printing has become a technology of choice.
  • a recent survey on progress and trends in ink jet printing technology is given by Hue P. Le in Journal of Imaging Science and Technology Vol. 42 (1), Jan/Febr 1998.
  • JP 2001-080203A discloses a recording material for receiving dye ink and pigment ink, the recording material having the constitution wherein first and second ink receiving layers containing binder resin and a pigment respectively are formed sequentially at least on one side of a transparent plastic film.
  • the binder resin contains water-soluble resin of 40-60 parts by weight and hydrophilic resin of 60-40 parts by weight as resin constituents and the content of the pigment in the first ink receiving layer is made larger than that in the second ink receiving layer, while the film thickness of the first ink receiving layer is made larger than that of the second.
  • JP 2000-043405A discloses a recording medium include an ink image acceptable layer having as an essential component copolymeric resin consisting of at least hydrophobic monomer, cation modified acryl monomer, and diacetone acryl amide as a monomer component on at least one surface of a base material. Laminating the ink image acceptable layer and a protection layer containing copolymeric resin and minute grains enables an ink jet recording medium to be obtained with an excellent image quality and drying property of ink.
  • diacetone acryl amide as an acryl monomer of an amide system for ink dyeing, a good image quality and complete water resistance can be given through a combination with a dihydrazide compound.
  • EP 0 415 849A discloses a printing sheet comprising a supporting body and a surface layer, said layer covering at least one side of said supporting body and comprising a copolymer consisting of two types of acrylic monomers: one type of said monomers having carboxyl groups, and the other type of monomers selected from the group consisting of amino groups and amide groups and optionally further comprising a pigment.
  • ink jet printing tiny drops of ink fluid are projected directly onto an ink receptor surface without physical contact between the printing device and the receptor.
  • the printing device stores the printing data electronically and controls a mechanism for ejecting the drops image-wise. Printing is accomplished by moving the print head across the paper or vice versa.
  • Early patents on ink jet printers include US 3,739,393, US 3,805,273 and US 3,891,121.
  • the jetting of the ink droplets can be performed in several different ways. In a first type of process a continuous droplet stream is created by applying a pressure wave pattern. This process is known as continuous ink jet printing.
  • the droplet stream is divided into droplets that are electrostatically charged, deflected and recollected, and into droplets that remain uncharged, continue their way undeflected, and form the image.
  • the charged deflected stream forms the image and the uncharged undeflected jet is recollected.
  • several jets are deflected to a different degree and thus record the image (multideflection system).
  • the ink droplets can be created “on demand” (“DOD” or “drop on demand” method) whereby the printing device ejects the droplets only when they are used in imaging on a receiver thereby avoiding the complexity of drop charging, deflection hardware, and ink recollection.
  • DOD on demand
  • the ink droplet can be formed by means of a pressure wave created by a mechanical motion of a piezoelectric transducer (so-called “piezo method”), or by means of discrete thermal pushes (so-called “bubble jet” method, or “thermal jet” method).
  • Ink compositions for ink jet typically include following ingredients : dyes or pigments, water and/or organic solvents, humectants such as glycols, detergents, thickeners, polymeric binders, preservatives, etc.. It will be readily understood that the optimal composition of such an ink is dependent on the ink jetting method used and on the nature of the substrate to be printed.
  • the ink compositions can be roughly divided in :
  • an ink jet recording material comprising a support and at least one ink receiving layer containing a pigment and a polymeric binder, wherein said polymeric binder contains a structural unit derived from a monomer represented by following formula (I): wherein R1 is alkyl, R2 is alkyl or aryl, R3 is hydrogen, alkyl or aryl, L is a linking unit selected from CO-NH, CO-O, and CO, and R4 is hydrogen or alkyl; and the pigment to binder ratio is at least 4.
  • formula (I) wherein R1 is alkyl, R2 is alkyl or aryl, R3 is hydrogen, alkyl or aryl, L is a linking unit selected from CO-NH, CO-O, and CO, and R4 is hydrogen or alkyl; and the pigment to binder ratio is at least 4.
  • R1, R2 and R3 are methyl, L is CO-NH, and R4 is hydrogen or methyl, so that the monomer is diacetone (meth)acrylamide.
  • the polymeric binder is a copolymer of the monomer according to formula (I) and other types of monomer.
  • a most preferred polymeric binder is a copolymer of vinyl alcohol, vinyl acetate, and diacetone acrylamide.
  • the support for use in the present invention can be chosen from paper type and polymeric type supports well-known from photographic technology.
  • Paper types include plain paper, cast coated paper, polyethylene coated paper and polypropylene coated paper.
  • Polymeric supports include cellulose acetate propionate or cellulose acetate butyrate, polyesters such as polyethylene terephthalate and polyethylene naphthalate, polyamides, polycarbonates, polyimides, polyolefins, poly(vinylacetals), polyethers and polysulfonamides.
  • Other examples of useful high-quality polymeric supports for the present invention include opaque white polyesters and extrusion blends of polyethylene terephthalate and polypropylene. Polyester film supports and especially polyethylene terephthalate are preferred because of their excellent properties of dimensional stability.
  • a subbing layer may be employed to improve the bonding of the ink-receiving layer to the support.
  • Useful subbing layers for this purpose are well known in the photographic art and include, for example, polymers of vinylidene chloride such as vinylidene chloride /acrylonitrile /acrylic acid terpolymers or vinylidene chloride /methyl acrylate /itaconic acid terpolymers.
  • the porous ink receiving layer contains, apart from a pigment, a polymeric binder having a structural unit derived from a monomer as defined by formula (I).
  • Useful monomers in connection with the present invention are included in following list :
  • the polymeric binder used in accordance with the present invention may be mixed with conventional binders well known in the art.
  • the pigment used in the ink receiving layer is preferably an inorganic pigment, which can be chosen from neutral, anionic and cationic pigment types.
  • Useful pigments include e.g. silica, talc, clay, hydrotalcite, kaolin, diatomaceous earth, calcium carbonate, magnesium carbonate, basic magnesium carbonate, aluminosilicate, aluminum trihydroxide, aluminum oxide (alumina), titanium oxide, zinc oxide, barium sulfate, calcium sulfate, zinc sulfide, satin white, alumina hydrate such as boehmite, zirconium oxide or mixed oxides.
  • the pigment is a cationic type pigment selected from alumina hydrates, aluminum oxides, aluminum hydroxides, aluminum silicates, and cationically modified silicas.
  • a preferred type of alumina hydrate is crystalline boehmite, or ⁇ -AlO(OH).
  • Useful types of boehmite include, in powder form, DISPERAL, DISPERAL HP14 and DISPERAL 40 from Sasol, MARTOXIN VPP2000-2 and GL-3 from Martinswerk GmbH.; liquid boehmite alumina systems, e.g. DISPAL 23N4-20, DISPAL 14N-25, DISPERAL AL25 from Sasol.
  • Patents on alumina hydrate include EP 500021, EP 634286, US 5,624,428, EP 742108, US 6,238,047, EP 622244, EP 810101, etc..
  • Useful cationic aluminum oxide (alumina) types include ⁇ -Al 2 O 3 types, such as NORTON E700, available from Saint-Gobain Ceramics & Plastics, Inc, and ⁇ -Al 2 O 3 types, such as ALUMINUM OXID C from Degussa; other aluminum oxide grades, such as BAIKALOX CR15 and CR30 from Baikowski Chemie; DURALOX grades and MEDIALOX grades from Baikowski Chemie, BAIKALOX CR80, CR140, CR125, B105CR from Baikowski Chemie; CAB-O-SPERSE PG003 trademark from Cabot, CATALOX GRADES and CATAPAL GRADES from from Sasol, such as PLURALOX HP14/150; colloidal Al 2 O 3 types, such as A
  • cationic inorganic pigments include aluminum trihydroxides such as Bayerite, or ⁇ -Al(OH) 3 , such as PLURAL BT, available from Sasol, and Gibbsite, or ⁇ -Al(OH) 3 , such as MARTINAL grades from Martinswerk GmbH, MARTIFIN grades, such as MARTIFIN OL104, MARTIFIN OL 107 and MARTIFIN OL111 from Martinswerk GmbH , MICRAL grades, such as MICRAL 1440, MICRAL 1500; MICRAL 632; MICRAL 855; MICRAL 916; MICRAL 932; MICRAL 932CM; MICRAL 9400 from JM Huber company; HIGILITE grades, e.g.
  • HIGILITE H42 or HIGILITE H43M from Showa Denka K.K. HYDRAL COATES grades from Alcoa Co., such as HYDRAL COAT 2, 5 , and 7, HYDRAL PGA and HYDRAL 710.
  • Another useful type of cationic pigment is zirconium oxide such as NALCO OOSS008 trademark of ONDEO Nalco, acetate stabilized ZrO 2, ZR20/20, ZR50/20, ZR100/20 and ZRYS4 trademarks from Nyacol Nano Technologies.
  • Useful mixed oxides are SIRAL grades from Sasol, colloidal metal oxides from Nalco such as Nalco 1056, Nalco TX10496, Nalco TX11678.
  • silica which can be used as such in its anionic form or after cationic modification.
  • Silica as pigment in ink receiving elements is disclosed in numerous old and recent patents, e.g. US 4,892,591, US 4,902,568, EP 373573, EP 423829, EP 487350, EP 493100, EP 514633, etc..
  • the silica can be chosen from different types, such as crystalline silica, amorphous silica, precipitated silica, fumed silica, silica gel, spherical and non-spherical silica.
  • the silica may contain minor amounts of metal oxides from the group Al, Zr, Ti.
  • AEROSIL OX50 BET surface area 50 ⁇ 15 m 2 /g, average primary particle size 40 nm, SiO 2 content > 99.8%, Al 2 O 3 content ⁇ 0.08%
  • AEROSIL MOX170 BET surface area 170 g/m 2 , average primary particle size 15 nm, SiO 2 content > 98.3%, Al 2 O 3 content 0.3-1.3%)
  • AEROSIL MOX80 BET surface area 80 ⁇ 20 g/m 2 , average primary particle size 30 nm, SiO 2 content > 98.3%, Al 2 O 3 content 0.3-1.3%)
  • other hydrophilic AEROSIL grades available from Degussa-Hüls AG, which may give aqueous dispersions with a small average particle size ( ⁇ 500 nm).
  • Cationically modified silica can be prepared by following methods, without meaning to be limitative :
  • the pigment may be chosen from organic particles such as polystyrene, polymethyl methacrylate, silicones, melamine-formaldehyde condensation polymers, urea-formaldehyde condensation polymers, polyesters and polyamides. Mixtures of inorganic and organic pigments can be used. However, most preferably the pigment is an inorganic pigment. The pigment must be present in a sufficient coverage in order to render the ink receiving layer sufficiently porous. For obtaining glossy ink receiving layers the particle size of the pigment should preferably be smaller than 500 nm. In order to obtain a porous glossy layer which can serve as an ink receiving layer for fast ink uptake the pigment/binder ratio is at least 4.
  • the binder is no longer able to fill up all pores and voids created by the pigments in the coating.
  • the pore volume of these highly pigmented coatings should be higher than 0.1 ml/g of coated solids. This pore volume can be measured by gas adsorption (nitrogen) or by mercury diffusion.
  • the ink receiving layer be may just a single layer but, alternatively, it may be composed of a double layer or even of a multiple layer assemblage. In the latter cases the polymeric binder and/or the pigment may be present in one of the layers, or in several of the layers or in all layers.
  • a cationic substance acting as mordant may be present in the ink receiving layer.
  • Such substances increase the capacity of the layer for fixing and holding the dye of the ink droplets.
  • a particularly suited compound is a poly(diallyldimethylammonium chloride) or, in short, a poly(DADMAC). These compounds are commercially available from several companies, e.g. Aldrich, Nalco, CIBA, Nitto Boseki Co., Clariant, BASF and EKA Chemicals.
  • DADMAC copolymers such as copolymers with acrylamide, e.g NALCO 1470 trade mark of ONDEO Nalco or PAS-J-81, trademark of Nitto Boseki Co., such as copolymers of DADMAC with acrylates, such as Nalco 8190, trademark of ONDEO Nalco; copolymers of DADMAC with SO 2, such as PAS-A-1 or PAS-92, trademarks of Nitto Boseki Co., copolymer of DADMAC with maleic acid, e.g.
  • PAS-410 trademark of Nitto Boseki Co., copolymer of DADMAC with diallyl(3-chloro-2-hydroxypropyl)amine hydrochloride, eg. PAS-880, trademark of Nitto Boseki Co., dimethylamine-epichlorohydrine copolymers, e.g.
  • Nalco 7135 trademark of ONDEO Nalco or POLYFIX 700, trade name of Showa High Polymer Co.
  • other POLYFIX grades which could be used are POLYFIX 601, POLYFIX 301, POLYFIX 301A, POLYFIX 250WS, and POLYFIX 3000 ;
  • NEOFIX E-117 trade name of Nicca Chemical Co., a polyoxyalkylene polyamine dicyanodiamine, and REDIFLOC 4150, trade name of EKA Chemicals, a polyamine;
  • MADQUAT methacryloxyethyltrimethylammonium chloride
  • CYPRO 514/515/516, SUPERFLOC 507/521/567 cationic acrylic polymers, such as ALCOSTAT 567, trademark of CIBA, cationic cellulose derivatives such as CELQUAT L-200, H-100, SC-240C, SC-230M, trade names of Starch & Chemical Co., and QUATRISOFT LM200, UCARE polymers JR125, JR400, LR400, JR30M, LR30M and UCARE polymer LK; fixing agents from Chukyo Europe: PALSET JK-512, PALSET JK512L, PALSET JK-182, PALSET JK-220, WSC-173, WSC-173L, PALSET JK-320, PALSET JK-320L and PALSET JK-350; polyethyleneimine and copolymers, e.g.
  • LUPASOL trade name of BASF AG
  • triethanolamine-titanium-chelate e.g. TYZOR, trade name of Du Pont Co.
  • copolymers of vinylpyrrolidone such as VIVIPRINT 111, trade name of ISP, a methacrylamido propyl dimethylamine copolymer; with dimethylaminoethylmethacrylate such as COPOLYMER 845 and COPOLYMER 937, trade names of ISP
  • vinylimidazole e.g.
  • LUVIQUAT CARE, LUVITEC 73W, LUVITEC VPI55 K18P, LUVITEC VP155 K72W, LUVIQUAT FC905, LUVIQUAT FC550, LUVIQUAT HM522, and SOKALAN HP56 all trade names of BASF AG; polyamidoamines, e.g. RETAMINOL and NADAVIN, trade marks of Bayer AG; phosphonium compounds such as disclosed in EP 609930 and other cationic polymers such as NEOFIX RD-5, trademark of Nicca Chemical Co.
  • the ink receiving layer, and an optional auxiliary layer, such as a backing layer for anti-curl purposes, may further contain well-known conventional ingredients, such as surfactants serving as coating aids, hardening agents, plasticizers, whitening agents and matting agents.
  • surfactants serving as coating aids, hardening agents, plasticizers, whitening agents and matting agents.
  • Surfactants may be incorporated in the layers of the recording element of the present invention. They can be any of the cationic, anionic, amphoteric, and non-ionic ones as described in JP-A 62-280068 (1987).
  • the surfactants are N-alkylamino acid salts, alkylether carboxylic acid salts, acylated peptides, alkylsulfonic acid salts, alkylbenzene and alkylnaphthalene sulfonic acid salts, sulfosuccinic acid salts, ⁇ -olefin sulfonic acid salts, N-acylsulfonic acid salts, sulfonated oils, alkylsulfonic acid salts, alkylether sulfonic acid salts, alkylallylethersulfonic acid salts, alkylamidesulfonic acid salts, alkylphosphoric acid salts, alkyletherphosphoric acid salts, alkylallylether
  • Useful cationic surfactants include N-alkyl dimethyl ammonium chloride, palmityl trimethyl ammonium chloride, dodecyldimethylamine, tetradecyldimethylamine, ethoxylated alkyl guanidine-amine complex, oleamine hydroxypropyl bistrimonium chloride, oleyl imidazoline, stearyl imidazoline, cocamine acetate, palmitamine, dihydroxyethylcocamine, cocotrimonium chloride, alkyl polyglycolether ammonium sulphate, ethoxylated oleamine, lauryl pyridinium chloride, N-oleyl-1,3-diaminopropane, stearamidopropyl dimethylamine lactate, coconut fatty amide, oleyl hydroxyethyl imidazoline, isostearyl ethylimidonium ethosulphate, lauramidopropyl PEG-d
  • a separate crosslinking agent may be incorporated in the ink receiving layer and/or in an auxiliary layer.
  • crosslinking agents also known as hardening agents - that will function to crosslink film forming binders. Hardening agents can be used individually or in combination and in free or in blocked form.
  • a great many hardeners, useful for the present invention are known, including formaldehyde and free dialdehydes, such as succinaldehyde and glutaraldehyde, blocked dialdehydes, active esters, sulfonate esters, active halogen compounds, isocyanate or blocked isocyanates, polyfunctional isocyanates, melamine derivatives, s-triazines and diazines, epoxides, active olefins having two or more active bonds, carbodiimides, zirconium complexes, e.g.
  • BACOTE 20 ZIRMEL 1000 or zirconium acetate, trademarks of MEL Chemicals, titanium complexes, such as TYZOR grades from DuPont, isoxazolium salts subsituted in the 3-position, esters of 2-alkoxy-N-carboxy-dihydroquinoline, N-carbamoylpyridinium salts, hardeners of mixed function, such as halogen-substituted aldehyde acids (e.g.
  • mucochloric and mucobromic acids onium substituted acroleins and vinyl sulfones and polymeric hardeners, such as dialdehyde starches and copoly(acroleinmethacrylic acid), and oxazoline functional polymers, e.g. EPOCROS WS-500, and EPOCROS K-1000 series, and maleic anhydride copolymers, e.g. GANTREZ AN119
  • boric acid is a preferred crosslinker.
  • the ink-receiving layer and the optional auxiliary layer(s) may also comprise a plasticizer such as ethylene glycol, diethylene glycol, propylene glycol, polyethylene glycol, glycerol monomethylether, glycerol monochlorohydrin, ethylene carbonate, propylene carbonate, urea phosphate, triphenylphosphate, glycerolmonostearate, propylene glycol monostearate, tetramethylene sulfone, n-methyl-2-pyrrolidone, n-vinyl-2-pyrrolidone.
  • a plasticizer such as ethylene glycol, diethylene glycol, propylene glycol, polyethylene glycol, glycerol monomethylether, glycerol monochlorohydrin, ethylene carbonate, propylene carbonate, urea phosphate, triphenylphosphate, glycerolmonostearate, propylene glycol monostearate, tetramethylene
  • the different layers can be coated onto support by any conventional coating technique, such as dip coating, knife coating, extrusion coating, spin coating, slide hopper coating and curtain coating.
  • Reference binder for the comparative sample a cationic polyvinylalcohol GOSHEFIMER K210, trade mark of Nippon Goshei, 13-1, Muroyama 2-chome, Ikaraki, Osaka 567-0052, Japan.
  • Gohsefimer K210 has a degree of hydrolysis between 85.5 - 88.0 mol% and a viscosity of a 4% aqueous sololution of 18.0 - 22.0 mPas.
  • Binder for the invention sample D700, trade mark of Unitika LTD, 4-1-3 Kyutara-Machi Chuo-Ku, Osaka, 541-8566 Japan ; this is a modified polyvinyl alcohol comonomer comprising vinyl alcohol, vinyl acetate and diacetone acrylamide monomers.
  • D700 has the appearance of cream-colored granules.
  • a 4 % aqueous solution has a viscosity of 20-30 mPa.s at 20 °C using a Brookfield viscometer.
  • Coating liquids for forming ink recording layers were prepared by adding 30 parts by solid weight of a 40% aqueous solution of alumina (CAB-O-SPERSE PG003 provided by Cabot Corp.) together with 1.3 parts by weight of a 4% aqueous solution of boric acid to 7.4 parts by weight of a 10% aqueous solution of polyvinyl alcohol GOSHEFIMER K210 provided by Nippon Goshei) for the comparative sample, or to 6.3 parts by weight of a 10% aqueous solution of the modified polyvinyl alcohol D700 for the invention sample.
  • a 40% aqueous solution of alumina CAB-O-SPERSE PG003 provided by Cabot Corp.
  • boric acid 1.3 parts by weight of a 4% aqueous solution of boric acid to 7.4 parts by weight of a 10% aqueous solution of polyvinyl alcohol GOSHEFIMER K210 provided by Nippon Goshei
  • the coating solution was coated on a subbed PET sheet (100 ⁇ m) using a wire bar to form an ink receiving layer having a dry weight of 31.5 g/m 2 , and dried at 40°C.
  • the specular gloss was measured at 60° and the cracking of the coating was visually evaluated.
  • Color patches containing primary and secondary colors were printed on the coated samples by means of a Epson Stylus Photo 870 (trademark: Seiko Epson Corp.). By means of these color patches the drying time and color density can be measured. The drying time corresponds to the time the printed patch of 100% cyan cannot be smeared out with the fingers.
  • the test results are shown in table 1.
  • the coated and printed invention sample with compound D700 as binder shows a higher gloss and higer color densities without imparting negatively the physical properties as drying time and cracking.
  • a polymeric binder used in accordance with the present invention was prepared by a semi-continuous emulsion copolymerization of butyl acrylate and diacetone acrylamide, according to the folowing procedure.
  • 10.8 g of a cationic surfactant cetyltrimethylammonium bromide was dissolved in 1412 g of water in a 2 1 jacketed reactor with nitrogen flow and stirred at 250 rpm. Subsequently the reactor was heated to 85°C. 37.8 g of butyl acrylate and 16.2 g of diacetone acrylamide were added to the reactor. The emulsion was stirred for 5 minutes.
  • the reaction was initiated by addition of a mixture of 0.54 g of a 30% aqueous H 2 O 2 solution and 0.81 gram of ascorbic acid.
  • a mixture of 0.54 g of a 30% aqueous H 2 O 2 solution and 0.81 gram of ascorbic acid After nucleation of the latex 214.2 g of butyl acrylate and 91.8 g of diacetone acrylamide were pumped into the reactor within a time interval of 90 minutes. Simultaneously however in a time interval of 110 minutes an initator solution containing a mixture of 3.06 g of a 30% aqueous H 2 O 2 solution and 0.81 g of ascorbic acid was dosed to the reactor. When all ingredients were added the reaction was allowed to continue for 30 minutes, after which the residual monomer was removed by vacuum destillation during 60 minutes.
  • the reactor was cooled to room temperature and subsequently the latex was filtered over coarse filtration paper.
  • the emulsion polymerization resulted in a latex having an average particle size of 81 nm, a pH of 2.31, a viscosity of 4.3 mPa.s and a solids content of 21.0 weight%.
  • An ink jet recording medium was prepared by the same procedure as for the comparative sample of example 1 with the exception that in the preparation for the coating liquid the polyvinyl alcohol was replaced by 3.0 parts of a 21% aqueous emulsion of the above described polymeric binder containing butyl acrylate and diacetone acrylamide monomers.
  • the samples were coated and printed on the same way as in comparative example 1. The color bleeding was visually evaluated according to an arbitrary scale with ratings 1 to 5, with 5 being best without any color bleeding. The results are shown in table 2. TABLE 2 Sample Gloss Bleeding Comp. Ex.1 44.9 2 Invent. Ex. 2 56.8 3
  • the coated and printed invention sample described in this example 2 shows a higher gloss and lower color bleeding than the comparative sample.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ink Jet (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Claims (7)

  1. Matériau d'enregistrement par jet d'encre comprenant un support et au moins une couche de réception d'encre comprenant un pigment et un liant polymère, ledit liant polymère contenant une unité de structure qui dérive d'un monomère répondant à la formule suivante (I) :
    Figure imgb0014
     dans laquelle R1 représente un groupe alkyle, R2 représente un groupe alkyle ou un groupe aryle, R3 représente un atome d'hydrogène, un groupe alkyle ou un groupe aryle, L représente une unité de liaison choisie parmi le groupe comprenant un groupe CO-NH, un groupe CO-O et un groupe CO, et R4 représente un atome d'hydrogène ou un groupe alkyle ; le rapport du pigment au liant s'élevant à au moins 4.
  2. Matériau d'enregistrement par jet d'encre selon la revendication 1, dans lequel ledit liant polymère est un copolymère du monomère répondant à la formule (I) et d'au moins un autre monomère choisi parmi le groupe constitué par l'alcool vinylique, la vinylamine, l'allylamine, des acrylates, des méthacrylates, des acrylamides, des méthacrylamides, des esters allyliques, des éthers vinyliques, des esters vinyliques, le styrène, des dérivés du styrène, le vinylacétamide et le vinylformamide.
  3. Matériau d'enregistrement par jet d'encre selon la revendication 1 ou 2, dans lequel ledit monomère répondant à la formule (I) et un acrylamide de diacétone ou un méthacrylamide de diacétone, R1, R2 et R3 représentant un groupe méthyle, L représentant un groupe CO-NH et R4 représentant un atome d'hydrogène ou un groupe méthyle, respectivement.
  4. Matériau d'enregistrement par jet d'encre selon l'une quelconque des revendications 1 à 3, dans lequel ledit liant polymère est un copolymère d'alcool vinylique, d'acétate de vinyle et d'acrylamide de diacétone.
  5. Matériau d'enregistrement par jet d'encre selon l'une quelconque des revendications 1 à 3, dans lequel ledit liant polymère est un copolymère d'acrylate de n-butyle et d'acrylamide de diacétone.
  6. Matériau d'enregistrement par jet d'encre selon l'une quelconque des revendications 1 à 5, dans lequel ledit pigment est un pigment inorganique.
  7. Matériau d'enregistrement par jet d'encre selon la revendication 6, dans lequel ledit pigment inorganique est choisi parmi le groupe constitué par l'oxyde d'aluminium, la boehmite, la pseudo-boehmite, la gibbsite, la bayerite, l'hydroxyde d'aluminium, la silice, l'argile, le carbonate de calcium, l'oxyde de zirconium et des hydroxydes/oxydes inorganiques mixtes.
EP02102221A 2002-08-27 2002-08-27 Matériau pour l'enregistrement par jet d'encre Expired - Lifetime EP1393922B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02102221A EP1393922B1 (fr) 2002-08-27 2002-08-27 Matériau pour l'enregistrement par jet d'encre
DE2002620520 DE60220520T2 (de) 2002-08-27 2002-08-27 Tintenstrahlaufzeichnungsmaterial
US10/440,907 US6924011B2 (en) 2002-08-27 2003-05-19 Ink jet recording material
JP2003298791A JP2004106527A (ja) 2002-08-27 2003-08-22 改良されたインキジェット記録材料

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02102221A EP1393922B1 (fr) 2002-08-27 2002-08-27 Matériau pour l'enregistrement par jet d'encre

Publications (2)

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EP1393922A1 EP1393922A1 (fr) 2004-03-03
EP1393922B1 true EP1393922B1 (fr) 2007-06-06

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EP (1) EP1393922B1 (fr)
JP (1) JP2004106527A (fr)
DE (1) DE60220520T2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2445978B1 (fr) 2009-06-26 2018-05-16 Hewlett-Packard Development Company, L.P. Encres pour jet d'encre comprenant des particules de latex autoréticulables
WO2011022001A1 (fr) 2009-08-18 2011-02-24 Hewlett-Packard Development Company, L.P. Encres pour jet d'encre comprenant des particules de latex inter-réticulables
BR112014014952B1 (pt) * 2011-12-21 2020-12-15 Solvay Sa Processo para a preparação de um composto de polímero/argila de cloreto de vinilideno

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BE790064A (fr) 1971-10-14 1973-02-01 Mead Corp Generateur de gouttes pour dispositif d'enregistrement.
US3891121A (en) 1972-08-04 1975-06-24 Mead Corp Method of operating a drop generator that includes the step of pre-pressurizing the liquid manifold
US3805273A (en) 1972-12-20 1974-04-16 Mead Corp Yoke mounted jet drop recording head
JPH0390383A (ja) * 1989-09-01 1991-04-16 Tomoegawa Paper Co Ltd 印刷用シート
US5275867A (en) 1991-02-19 1994-01-04 Asahi Glass Company Ltd. Recording film and recording method
US5439739A (en) * 1993-06-03 1995-08-08 Mitsubishi Paper Mills Limited Ink jet recording medium
EP0634286B1 (fr) 1993-07-14 1997-03-19 Asahi Glass Company Ltd. Fluide de revêtement à base de sol d'alumine et support d'enregistrement
US5691046A (en) 1995-05-12 1997-11-25 Asahi Glass Company Ltd. Recording medium
EP0761459B1 (fr) 1995-09-01 2000-02-09 Asahi Glass Company Ltd. Milieu d'enregistrement par jet d'encre convenable pour une encre contenant un pigment
US5624428A (en) 1995-11-29 1997-04-29 Kimberly-Clark Corporation Absorbent article having a pantlike pull down feature
JP2000043405A (ja) * 1998-07-27 2000-02-15 Toppan Printing Co Ltd インクジェット記録媒体及びその製造方法
JP2001080203A (ja) * 1999-09-17 2001-03-27 Kimoto & Co Ltd インクジェット記録材料

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Also Published As

Publication number Publication date
EP1393922A1 (fr) 2004-03-03
DE60220520T2 (de) 2008-02-07
JP2004106527A (ja) 2004-04-08
DE60220520D1 (de) 2007-07-19

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