EP1809710A1 - Composition pigmentaire sous forme de dispersion aqueuse - Google Patents
Composition pigmentaire sous forme de dispersion aqueuseInfo
- Publication number
- EP1809710A1 EP1809710A1 EP05793317A EP05793317A EP1809710A1 EP 1809710 A1 EP1809710 A1 EP 1809710A1 EP 05793317 A EP05793317 A EP 05793317A EP 05793317 A EP05793317 A EP 05793317A EP 1809710 A1 EP1809710 A1 EP 1809710A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- silica
- porous aggregates
- paper
- particles
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
Definitions
- the present invention relates to a pigment composition and a process for its production, a composition for coating paper or paper board and a process for its production, and a process for coating paper or paper board and paper or paper board obtainable by the process.
- US Patent Application Publication 2002/0039639 discloses incorporating a water soluble metal salt in an ink receiving layer comprising pigments and a conventional binder.
- US Patent 4554181 discloses a recording surface including a combination of a water soluble polyvalent metal and a cationic polymer.
- US Patent Application Publication 2004/0255820 discloses a pigment that is surface treated with a water-soluble polyvalent metal salt.
- US Patent Application Publication 2005/0106317 discloses a method for preparing an ink-jet recording material comprising the steps of forming at least one porous layer containing silica particles with an average secondary particle size of 500 nm or less, and coating a coating solution for preparing an inorganic particles-containing layer so that a solid content of the coated inorganic particles became 0.33 g/m 2 or less on the porous layer.
- US Patent 6797347 discloses an ink-jet paper comprising a base paper and a coating thereon, wherein said coating contains an inorganic pigment modified with a positively charged complex and a binder.
- the positively charged complex contains a polyvalent metal ion and an organic ligand.
- US Patent Application Publication 2003/0099816 discloses an ink jet-recording material comprising a substrate and a transparent ink-receiving layer comprising a binder and a plurality of particles formed by dispersing amorphous silica particles and applying a strong mechanical stress to divide the particles.
- one aspect of the invention relates to a pigment composition in the form of an aqueous dispersion
- a pigment composition in the form of an aqueous dispersion comprising: a) porous aggregates formed by aggregation of colloidal primary particles of silica, aluminosilicate or a mixture thereof in an aqueous sol, said porous aggregates having a mean diameter from about 0.03 ⁇ m to about 25 ⁇ m, and, b) extender particles where the mean size of at least one dimension is larger than the mean diameter of the porous aggregates, wherein the weight ratio of porous aggregates to extender particles is from about 0.01 :1 to about 3:1 , preferably from about 0.01:1 to about 2:1 , most preferably from about 0.05:1 to about 1.5:1.
- the mean particle diameter of the colloidal primary particles is preferably from about 2 nm to about 75 nm, most preferably from about 3 nm to about 50 nm.
- the surface area of the primary particles is preferably from about 35 m 2 /g to about 1400 m 2 /g, most preferably from about 50 m 2 /g to about 1000 m 2 /g. In an embodiment the surface area is up to about 600 m 2 /g, preferably up to about 450 m 2 /g, most preferably up to about 300 m 2 /g.
- the dry content of the aqueous sol of primary particles is preferably from about 0.5 wt% to about 60 wt%, most preferably from about 1 wt% to about 50 wt%.
- diameter as used herein refers to the equivalent spherical diameter.
- the colloidal primary particles of silica or aluminosilicate have preferably been formed from an aqueous solution of alkali metal silicate where alkali metal ions are removed through an ion exchange process or where the pH of the alkali metal silicate solution has been reduced by the addition of an acid.
- a process based on ion exchange follows the basic principles described in R.K. Her, "The Chemistry of Silica” 1979, pages 333-334 and results in an aqueous sol comprising colloidal negatively or positively charged particles of silica or aluminosilicate.
- a process based on pH-reduction of alkali metal silicate follows the basic principles described in e.g.
- sols comprise colloidal primary particles of silica that may or may not be surface modified, for example with a metal oxide such as oxide of aluminium, titanium, chromium, zirconium, boron or any other suitable metal.
- a metal oxide such as oxide of aluminium, titanium, chromium, zirconium, boron or any other suitable metal.
- Suitable aqueous sols of colloidal primary particles of silica or aluminosilicate are commercially available, for example under the trademarks LudoxTM, SnowtexTM, BindzilTM, NyacolTM, VinnsilTM or FennosilTM.
- the aggregation of the primary particles in the sol to form a dispersion of porous aggregates may be performed with any suitable method, such as those described in R. K. Her, "The Chemistry of Silica” 1979, pages 364-407.
- the degree of aggregation can be followed by measuring the viscosity and applying the Einstein and Mooney equations (see e.g. R.K. Her, "The Chemistry of Silica” 1979, pages 360-364).
- the aggregation may be performed as a separate step or in a mixture also comprising extender particles.
- an anionic sol comprising negatively charged colloidal primary particles
- a cationic sol comprising positively charged colloidal primary particles
- a salt preferably selected from divalent, multivalent or complex salts, is added to an anionic or cationic sol also resulting in the formation of porous aggregates.
- salts are aluminium chloride, poly aluminium chloride, poly aluminium silicate sulfate, aluminium sulfate, zirconium carbonates, zirconium acetates, alkali metal borates, and mixtures thereof.
- a bridging substance is used to form the aggregates from the primary particles.
- suitable bridging substances are syntetic and natural polyelectrolytes such as CMC (carboxymethyl cellulose), PAM (polyacrylamides), polyDADMAC (poly diallyl dimethyl ammoniumchloride), polyallyl amines, polyamines, starch, guar gums, and mixtures thereof.
- Each porous aggregate is formed from at least three primary particles, which inherently gives at least some pores.
- the mean particle diameter of the aggregates is preferably from about 0.05 to about 10 ⁇ m, most preferably from about 0.1 ⁇ m to about 1.5 ⁇ m. It is to be understood that the average diameter of the porous aggregates is always larger than the average diameter of the primary particles they are formed from.
- the extender particles could be of various geometrical shapes, for example substantially flake shaped, rodlike or spherical, wherein the mean size of at least one dimension is larger, preferably from about 1.3 to about 500 times larger, most preferably from about 1.3 to about 200 times larger than the mean diameter or the porous aggregates.
- the extender particles are preferably of an inorganic material such as natural or synthetic minerals.
- useful materials are kaolinites, smectites, talcites, calcium carbonate minerals, precipitated silica, gel-type silica, fumed silica, precipitated calcium carbonate, and mixtures thereof.
- the porous aggregates and the extender particles have opposite net charges. Thus, if the porous aggregates are have a positive net charge it is preferred to use extender particles with a negative net charge, and vice versa.
- the porous aggregates for example from about 1 to about 100 wt %, preferably from about 5 to about 100 wt%, most preferably from about 30 to about 100 wt% are attached to extender particles.
- the mean particle size of the entire pigment composition is preferably from about 0.5 ⁇ m to about 50 ⁇ m, most preferably from about 1 ⁇ m to about 25 ⁇ m.
- the specific surface of the entire composition is preferably from about 35 m 2 /g to about 1000 m 2 /g, most preferably from about 50 m 2 /g to about 700 m 2 /g.
- the specific surface is up to about 600 m 2 /g, preferably up to about 450 m 2 /g, most preferably up to about 400 m 2 /g.
- the total content of porous aggregates and extender particles in the composition is preferably from about 1 wt% to about 60 wt%, most preferably from about 5 wt% to about 50 wt%, particularly most preferably from about 10 wt% to about 50 wt%.
- the composition may further comprise other additives, such as stabilisers or remaining impurities from the raw materials or substances from the aggregation like salts and bridging agents.
- the composition may comprise at least one water soluble aluminium salt, preferably in an amount from about 0.1 wt% to about 30 wt% most preferably from about 0.2 wt% to about 15 wt%, calculated as wt% AI 2 O 3 on dry porous aggregates and extender particles.
- salts include aluminium chloride, poly aluminium chloride, poly aluminium silicate sulfate, aluminium sulfate, zirconium carbonates, zirconium acetates , and mixtures thereof.
- the aluminium may be present partly or fully on the surface of the particles of silica or aluminosilicate or in the aqueous phase.
- the entire content of water soluble aluminium salt may originate from what is present in a cationic aluminium modified silica sol used for preparing the pigment composition.
- the pigment composition may also comprise additional aluminium salt.
- the composition may comprise at least one cationic polymer, preferably having a molecular weight from about 2000 to about 1000000, more preferably from about 2000 to about 500000, most preferably from about 5000 to about 200000.
- the charge density of the polymer is preferably from about 0.2 meq/g to about 12 meq/g, more preferably from about 0.3 meq/g to about 10 meq/g, most preferably from about 0.5 meq/g to about 8 meq/g.
- the cationic polymer is preferably present in the composition in an amount from about 0.1 wt% to about 30 wt%, more preferably from about 0.5 wt% to about 20 wt%, most preferably from about 1 wt% to about 15 wt%, based on the amount of dry porous aggregates and extender particles.
- suitable cationic polymers include synthetic and natural polyelectrolytes such as PAM (polyacrylamides), polyDADMAC (poly diallyl dimethyl ammoniumchloride), polyallyl amines, polyamines, polysaccharides and mixtures thereof, provided they are cationic and preferably that the molecular weight and charged density fulfil the above requirements.
- the cationic polymer may be present partly or fully on the surface of the particles of silica or aluminosilicate or in the aqueous phase.
- a pigment composition as described above is preferably storage stable for at least one week, most preferably at least one month.
- the composition may be used directly for coating paper or paperboard or form an intermediate product for preparing a coating composition.
- a further aspect of the invention concerns a process for the production of a pigment composition as described above.
- One alternative process comprises a step of mixing: a) an aqueous dispersion of porous aggregates formed by aggregation of colloidal primary particles of silica, aluminosilicate or a mixture thereof in an aqueous sol, said porous aggregates having a mean diameter from about 0.03 ⁇ m to about 25 ⁇ m, and, b) extender particles where the mean size of at least one dimension is larger than the mean diameter of the porous aggregates, wherein the weight ratio of porous aggregates to extender particles is from about 0.01 :1 to about 3:1 , preferably from about 0.03; 1 to about 2:1 , most preferably from about 0.05:1 to about 1.5:1.
- Another alternative process comprises the steps of: a) mixing an aqueous sol comprising colloidal primary particles of silica or aluminosilicate and extender particles in a weight ratio primary particles of silica or aluminosilicate to extender particles from about 0.01 :1 to about 3:1 , preferably from about 0.03; 1 to about 2:1 , most preferably from about 0.05:1 to about 1.5:1 ; and, b) aggregating the colloidal primary particles of silica or aluminosilicate to form porous aggregates having a mean diameter from about 0.03 ⁇ m to about 25 ⁇ m, but not exceeding the mean size of the largest dimension of the extender particles.
- the extender particles may be added as a solid powder, in the form of an aqueous dispersion or in any other suitable form.
- the above description of the pigment composition is referred to.
- Still a further aspect of the invention concerns a coating composition suitable for coating paper or paper board comprising a binder and a pigment composition as described above.
- binders are polyvinyl alcohols, optionally modified starches, gums, protein binders (e.g. caseins and soy protein binders), latices and mixtures thereof.
- Latices can be based on styrene butadien, acrylates, vinyl acetate, co ⁇ polymers of ethylene and vinyl acetates, styrene acrylic esters etc.
- Polyvinyl alcohols are particularly preferred.
- the coating composition may also comprise other additives commonly used such as rheology modifiers, optical brighteners, lubricants, insolubilizers, dyes, sizing agents etc.
- the dry content of the coating composition is preferably from about 2 wt% to about 75 wt%, most preferably from about 10 wt% to about 70 wt%.
- the amount of porous aggregates and extender particles from the pigment composition is preferably from about 30 to about 99 wt%, most preferably from about 50 to about 90 wt%, based on the dry content.
- the amount of binder is preferably from about 1 to about 70 wt%, most preferably from about 10 to about 50 wt%, based on the dry content.
- the total amount of other additives and possible impurities is preferably from 0 to about 50 wt%, most preferably from 0 to about 30 wt%, based on the dry content.
- suitable and preferred embodiments the above description of the pigment composition is referred to.
- Still a further aspect of the invention concerns a process for the production of a coating composition
- a process for the production of a coating composition comprising a step of mixing binder with a pigment composition as described above.
- the binder and any optional additive may be added to the pigment composition in any suitable form, for example as solid material, liquid material, or as an aqueous solution, dispersion or slurry.
- suitable and preferred embodiments the above description of the coating composition and the pigment composition is referred to.
- Another aspect of the invention concerns a process for the production of coated paper or paperboard comprising a step of applying a coating composition as described above to at least one side of a paper or paperboard web.
- the coating is preferably applied in an amount sufficient to yield at least from about 0.4 g/m 2 , preferably from about 0.5 g/m 2 to about 40 g/m 2 , most preferably from about 1 g/m 2 to about 20 g/m 2 of porous aggregates and extender particles from the pigment composition per coated side of the paper or paper board.
- the dry amount of coating applied per coated side of the paper or paper board is preferably at least from about 0.6 g/m 2 , preferably from about 0.7 g/m 2 to about 50 g/m 2 , most preferably from about 1.5 g/m 2 to about 25 g/m 2 .
- the coating is preferably applied to a non-coated side of the paper or paper board but may also be applied on top of a previously applied coating layer with the same or another coating composition. It is preferred not to apply any further coating of other kind on top of the layer formed from the coating as described herein. Applying the coating can be performed either on the paper or board machine or off the paper or board machine. In either case any type of coating methods can be used. Examples of coating methods are blade coating, air knife coating, roll coating, curtain coating, spray coating, size press coating (e.g. film press coating) and cast coating. After applying the coating the paper is dried, which in the case of on machine coating preferably is accomplished in a drying section of the machine. Any means of drying may be used, such as infra red radiation, hot air, heated cylinders or any combination thereof.
- coating refers to any method in which pigments are applied to the surface of paper or paper board, thus including not only conventional coating but also other methods such as for example pigmenting.
- the paper and paper board to be coated can be made from any kind of pulp, such as chemical pulp like sulfate, sulfite and organosolve pulps, mechanical pulp like thermo-mechanical pulp (TMP), chemo-thermo-mechanical pulp (CTMP), refiner pulp or ground wood pulp, from both hardwood and softwood bleached or unbleached pulp that is based on based on virgin or recycled fibres or any combination thereof. Paper and paper board from any other kind of pulp may also be coated in accordance with the invention.
- pulp such as chemical pulp like sulfate, sulfite and organosolve pulps, mechanical pulp like thermo-mechanical pulp (TMP), chemo-thermo-mechanical pulp (CTMP), refiner pulp or ground wood pulp, from both hardwood and softwood bleached or unbleached pulp that is based on based on virgin or recycled fibres or any combination thereof.
- TMP thermo-mechanical pulp
- CMP chemo-thermo-mechanical pulp
- refiner pulp or ground wood pulp from both hardwood and soft
- the invention finally concerns paper or paper board suitable for ink-jet printing obtainable by a process as described above.
- Such paper or paper board comprises a preferably substantially non-transparent layer comprising porous aggregates and extender particles from the coating composition preferably forming a nano-structure.
- the dry amount of coating is preferably at least from about 0.6 g/m 2 , preferably from about 0.7 g/m 2 to about 50 g/m 2 , most preferably from about 1.5 g/m 2 to about 25 g/m 2 .
- the amount of porous aggregates and extender particles from the pigment composition per coated side of the paper or paper board is preferably at least from about 0.4g/m 2 , preferably from about 0.5 g/m 2 to about 40 g/m 2 , most preferably from about 1 g/m 2 to about 20 g/m 2 . Preferably no other kind of coating has been applied on top of this layer.
- the paper or paper board of the invention have good properties for ink-jet printing, giving low line blurriness and mottling and high printing density for colours, but can advantageously also be used for other kinds of printing processes like toner, flexography, letter press, gravure, offset lithography and screen printing. It is a particular advantage that such good properties can be obtained in a simple manner by applying only small amounts of the coating and without the need to apply numerous different coating layers on the paper or paper board. This also enable the ⁇ coating to be applied with a size press, such as a film press, which for practical reasons is advantageous. Furthermore, the main components of the pigment composition can be made from readily available raw materials.
- Example 1 Four pigment compositions were prepared:
- a cationic aqueous silica sol, Bindzil ® CAT 220 from Eka Chemicals AB containing 30 wt% SiO 2 with a mean primary particle diameter of about 15 nm was diluted to 10 wt%.
- the diluted silica sol was stirred in glass beaker and 0.06 moles/l aluminium sulfate solution was added drop wise until the sol turned white and the viscosity increased, which occurred when the concentration of aluminium sulfate reached 0.0125 moles/I in the solution.
- the mean diameter of aggregates was determined to 0.3 ⁇ m (measured on a Zetamaster from Malvern instrument, monomodal analysis).
- a 20 wt% aqueous dispersion of extender particles was prepared from a coating clay (SPS, Imerys, UK). The mean particle size of the clay was determined to 1.64 ⁇ m by using a Mastersizer Micro Plus from Malvern Instrument (method 50HD).
- Each of the above pigment compositions were used for preparing coating formulations by mixing with a laboratory grade polyvinyl alcohol (MW 150000) dissolved in water as a 10 wt% solution. All formulation had a solid content of about 15 wt% and a weight ratio polyvinyl alcohol to solid pigments of 0.5:1.
- MW 150000 laboratory grade polyvinyl alcohol
- the coating formulations were applied on the surface of uncoated copy paper (A4 sized Data Copy from M-real) by a drawdown method with a wired rod, whereupon the papers were dried over a drying drum.
- a test picture containing blocs of cyan, magenta, yellow and black was printed on each of the dried papers with an ink jet printer from Hewlett-Packard ( HP Deskjet 970Cxi ).
- the colour density was determined with a colour densitometer (GretagMacbeth D19C, Gretag AG) and figures are shown in the table below:
- coating formulation including the pigment composition D gave the best over-all print density. It was also noted that the printed colours on paper coated with pigment composition A was strongly mottled.
- Example 2 Four pigment compositions were prepared: A: Two aqueous silica sols were used, an anionic silica sol, Bindzil ® 15/500, and a cationic silica sol, Bindzil ® CAT, both from Eka Chemicals and containing 15 wt% SiO 2 and having a mean primary particle diameter of about 6 nm. 37. 5 g of a 30 wt% aqueous clay dispersion (same clay as in Example 1 , mean particle size 1,64 ⁇ m), 90 g of the cationic sol, 135 g of the anionic sol, and 37.
- A Two aqueous silica sols were used, an anionic silica sol, Bindzil ® 15/500, and a cationic silica sol, Bindzil ® CAT, both from Eka Chemicals and containing 15 wt% SiO 2 and having a mean primary particle diameter of about 6 nm. 37. 5 g of a 30
- B 102 g of precipitated silica, TixosilTM 365 SP from Rhodia with a solid content of 22 wt% and mean particle size of 3.4 ⁇ m (Mastersizer) was mixed with 60 g of cationic silica sol 90 g of anionic silica sol and 48 g water in the same way as in A giving a high viscous pigment composition comprising aggregates of primary silica particles from the sols and extender particles from the precipitated silica. The mean diameter of aggregated silica sol before extender addition was determined to 0.69 ⁇ m (measured on the Zetamaster).
- Each of the above pigment compositions were used for preparing coating formulations by mixing with a polyvinyl alcohol binder (ERKOLTM 26/88 from ACETEX Co., Spain). All formulation had a solid content of about 15 wt% and a weight ratio polyvinyl alcohol to solid pigments of 0.25:1.
- the coating was applied on copy paper as in Example 1.
- a test picture containing blocs of cyan, magenta, yellow, green, blue, red and black was printed on each of the coated papers with an Epson Stylus C84 ink-jet printer using a pigmented ink for all colours.
- the printed blocs and the unprinted paper were measured with a spectrophotometer (Color Touch 2 from Technidyne) and the colour gamut volume was calculated.
- the gamut volume is approximated with a dodecahedral in the CEI L*a*b* colour space and the measurements of the colours give the corners in the dodecahedral
- Example 2 16,7 g of a 30 wt% aqueous dispersion of coating clay (same as in Example 1), 5 g of a silica gel type of product (dry powder) and 78 g water were mixed (UltraTurrax as in A) to obtain a 10 wt- % pigment dispersion (silica/clay ratio: 1:1) .
- This silica gel type product (Grace Davison) had a secondary particle size of 12 ⁇ m and a surface area of 400 g/m 2 , corresponding to a primary particle size of 7 to 8 nm.
- Coating formulations having a solid content of 10 wt% and weight ratio polyvinyl alcohol to solid pigment of 0.25:1 were prepared as in Example 2.
- the coatings were applied to paper and dried on an IR-drier (Hedson Technologies AB 1 Sweden) Print tests were performed with Epson Stylus C84 and HP5652 (Hewlett Packard) ink-jet printers as described in Example 2. The results appear in table below:
- the pigment composition containing silica sol aggregates (A) gave higher gamut volumes than corresponding pigment composition containing gel type of silica. A careful visual inspection revealed a good line sharpness and no colour bleeding for the printouts.
- Example 4 Two pigment compositions were prepared: A: An anionic silica sol prepared by ion exchange method containing 10 wt% SiO 2 and having a surface area of about 865 m 2 /g was aggregated by slowly adding 14.2 g of a 2.5 wt% aqueous solution of modified carboxy methyl cellulose (CMC) to 10O g silica sol under continuous stirring to give a high viscous clear solution.
- CMC carboxy methyl cellulose
- the modified CMC had a DS of 0.65 with respect to carboxyl groups and was further modified by incorporation of quaternary nitrogen groups (DS 0.43) giving a cationic character of the product.
- the mean particle diameter of the aggregates in the dispersion was determined to 0.7 ⁇ m by using the Zetamaster. The dispersion was then vigorously mixed with 45 g of the precipitated silica (Tixosil 365 SP, mean particle size 3.4 ⁇ m, see example 2) and 45 g water.
- Coating formulations having a solid content of about 10 wt% and a weight ratio polyvinyl alcohol to solid pigment of 0.25:1 were prepared as in Example 2. The coatings were applied to paper and dried as in Example 3. Print tests were performed as in Example 2 with two ink-jet printers, Epson C84 and HP 5652. The gamut volume was measured and the following results were obtained.
- composition A gives better print quality than composition B.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Ink Jet (AREA)
Abstract
L'invention concerne une composition de pigment sous forme de dispersion ou suspension aqueuse qui comprend: (a) des agrégats poreux de particules colloïdales primaires de silice, d'aluminosilicate, ou de mélange des deux, en solution aqueuse, ces agrégats ayant un diamètre moyen compris entre environ 0,03 et environ 25 µm, et, (b) des particules d'extension sachant que la taille moyenne d'au moins une dimension de ces particules est supérieure au diamètre moyen susmentionné, et que le rapport de poids agrégats/particules d'extension est compris entre environ 0,01:1 et environ 3:1. On décrit aussi un procédé pour la production de cette composition, une composition pour le revêtement de papier ou de carton, et un procédé de production correspondant, un procédé pour le revêtement de papier ou de carton, et enfin du papier ou du carton ainsi revêtu.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05793317A EP1809710A1 (fr) | 2004-11-08 | 2005-10-13 | Composition pigmentaire sous forme de dispersion aqueuse |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04105595 | 2004-11-08 | ||
PCT/SE2005/001522 WO2006049545A1 (fr) | 2004-11-08 | 2005-10-13 | Composition de pigment sous forme de dispersion aqueuse |
EP05793317A EP1809710A1 (fr) | 2004-11-08 | 2005-10-13 | Composition pigmentaire sous forme de dispersion aqueuse |
Publications (1)
Publication Number | Publication Date |
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EP1809710A1 true EP1809710A1 (fr) | 2007-07-25 |
Family
ID=34929820
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
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EP05793317A Withdrawn EP1809710A1 (fr) | 2004-11-08 | 2005-10-13 | Composition pigmentaire sous forme de dispersion aqueuse |
EP05793349A Withdrawn EP1809711A1 (fr) | 2004-11-08 | 2005-10-13 | Composition pigmentaire sous forme de dispersion aqueuse |
EP05794244A Withdrawn EP1809712A1 (fr) | 2004-11-08 | 2005-10-13 | Composition pigmentaire sous forme de dispersion aqueuse |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
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EP05793349A Withdrawn EP1809711A1 (fr) | 2004-11-08 | 2005-10-13 | Composition pigmentaire sous forme de dispersion aqueuse |
EP05794244A Withdrawn EP1809712A1 (fr) | 2004-11-08 | 2005-10-13 | Composition pigmentaire sous forme de dispersion aqueuse |
Country Status (16)
Country | Link |
---|---|
EP (3) | EP1809710A1 (fr) |
JP (3) | JP4897694B2 (fr) |
KR (3) | KR100948121B1 (fr) |
CN (3) | CN101426865B (fr) |
AR (3) | AR051756A1 (fr) |
AU (3) | AU2005301351B2 (fr) |
BR (3) | BRPI0517264A (fr) |
CA (3) | CA2586207C (fr) |
MX (3) | MX2007004959A (fr) |
MY (3) | MY145100A (fr) |
NO (3) | NO20072909L (fr) |
NZ (1) | NZ554297A (fr) |
RU (3) | RU2392223C2 (fr) |
TW (3) | TWI298081B (fr) |
WO (3) | WO2006049547A1 (fr) |
ZA (3) | ZA200704420B (fr) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8758886B2 (en) | 2005-10-14 | 2014-06-24 | International Paper Company | Recording sheet with improved image dry time |
US7682438B2 (en) | 2005-11-01 | 2010-03-23 | International Paper Company | Paper substrate having enhanced print density |
CN101415882B (zh) | 2006-02-28 | 2011-12-28 | 赢创德固赛公司 | 有色纸和具有增强的印刷性能的经涂布的基底 |
BRPI0717292A2 (pt) * | 2006-09-26 | 2013-01-22 | Evonik Degussa Corp | papel multifuncional para desempenho de impressço aumentada |
CA2664490A1 (fr) * | 2006-09-27 | 2008-04-03 | Ciba Holding Inc. | Composition silicieuse et son utilisation dans la fabrication du papier |
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