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EP2170618B1 - Papier pour impression à jet d'encre - Google Patents

Papier pour impression à jet d'encre Download PDF

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Publication number
EP2170618B1
EP2170618B1 EP08784771.1A EP08784771A EP2170618B1 EP 2170618 B1 EP2170618 B1 EP 2170618B1 EP 08784771 A EP08784771 A EP 08784771A EP 2170618 B1 EP2170618 B1 EP 2170618B1
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EP
European Patent Office
Prior art keywords
parts
dry weight
fine particulate
pigment
coating
Prior art date
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Revoked
Application number
EP08784771.1A
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German (de)
English (en)
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EP2170618A1 (fr
Inventor
Gilbert Botty
Wim Ballet
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Sappi Netherlands Services BV
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Sappi Netherlands Services BV
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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
    • B41M5/5218—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
    • B41M5/502—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

Definitions

  • the present document relates to the field of inkjet papers and methods for making them, and it in particularly relates to inkjet papers with quick drying properties and high-gloss.
  • ink-jet printers will produce an image on most papers, but the print quality varies heavily in dependence on the nature of the paper used.
  • print quality is meant factors such as the sharpness, intensity and uniformity of the image produced and its susceptibility to smudging immediately or shortly after the ink has been applied.
  • colour printing it is important also that the colours should not run into one another and that they should be vivid, with good brightness.
  • a pigment coating makes the paper highly absorptive to the aqueous ink vehicle, so that the vehicle drains away quickly into the body of the paper, leaving the coloured dye at the surface and thereby giving bright intense colours with minimal print bleed.
  • the most widely used general-purpose paper coating pigments are kaolin and calcium carbonate, particularly precipitated calcium carbonate (PCC). They have been used or proposed for use in coated ink jet papers, but primarily as extenders or in low-cost papers not designed to produce the highest quality colour images.
  • PCC precipitated calcium carbonate
  • WO 01/45956 proposes to use a speciality cationic PCC product according to WO-A-96/29369A which is much cheaper than silica pigments, and is easier to use from a rheological standpoint in combination with a minor proportion of gel-type silica included in the formulation, and all this for an image receiving top coating layer.
  • Remaining disadvantage is the relatively low solids content of the coating formulation.
  • US 598 5424 discloses a method comprising coating a base coat on a support, said base coat comprising precipitated calcium carbonate and calcinated clay at a solids content of 60%.
  • WO2006/003391 discloses an inkjet receiver comprising a support; an upper layer comprising a binder and a first inorganic particulate material having a mean particulate diameter of 500 nm or less, as well as an under layer comprising a binder and an inorganics particulate material.
  • EP1114735 discloses an inkjet paper comprising a support and (i) a base coating comprising 75 parts of precipitated calcium carbonate and 25 parts of precipitated silica and a binder and (ii) an ink-receptive top coating comprising fumed alumina.
  • the object of the present invention is therefore to provide an improved inkjet paper eliminating at least one of the disadvantages mentioned above and/or providing an economically and technically viable alternative to the solutions according to the state-of-the-art.
  • the present invention solves the above problem by providing a method for making an ink jet paper as detailed further below as well as an inkjet paper comprising two layers, an image receiving coating layer for gloss and a pre-coat layer for printing ink vehicle absorption beneath this image receiving coating layer, wherein these two coating layers both have specific coating formulations and both having a clear positive effect upon the printing properties.
  • the specific choice as given below provides a solution to the difficult problem to provide a coating which on the one hand can be of high-gloss and quick ink-drying, can be printed with most commercial inkjet printers/colours leading to vivid colours without bleeding and similar effects, and additionally a coating that can be run on a normal coating machine such as a blade coater without problems. So the specific proposed choice of a specifically designed image receiving coating layer with a further specifically designed pre-coating layer has to be regarded not as a simple superposition of these two layers but as a synergetic system in as far as adherence and ink receiving properties concerned etc.
  • the proposed inkjet paper comprises at least one image receiving coating layer and at least one pre-coat layer beneath said image receiving coating layer on a paper substrate, wherein the pre-coat layer comprises a specific formulation as follows:
  • the image receiving coating layer also comprises a specific formulation as follows:
  • the total coating recipe of the pre-coat layer and/or of the image receiving coating layer is chosen to be in an overall anionic state.
  • This is in contrast to conventional inkjet coating formulations, in which normally in at least one of the coating layers, normally in the ink receptive coating layer, specifically a cationic total coating system is provided to fix the anionic inkjet dyes.
  • a cationic total coating system is provided to fix the anionic inkjet dyes.
  • One such conventional inkjet coating formulation based on a purely cationic topcoat layer is for example described in EP 1114735 , where for an ink receptive top coating fumed alumina particles with a cationic surface charge are used in order to fix the anionic inkjet dyes, this effect is even supplemented by adding a cationic fixative in a high amount.
  • the cationic nature of the pigment of the ink receptive top coating layer is important according to this document EP 1114735 as if this pigment is partially replaced for example by colloidal silica, the colloidal silica has to be a cationic and therefore very specific type of colloidal silica.
  • the additional fine particulate pigments can be selected from (preferably anionic) pigments such as carbonate, in particular calcium carbonate such as precipitated or ground calcium carbonate, clay, silica, in particular silica gel or colloidal silica, kaolin, talc, as well as combinations and mixtures thereof.
  • anionic pigments such as carbonate, in particular calcium carbonate such as precipitated or ground calcium carbonate, clay, silica, in particular silica gel or colloidal silica, kaolin, talc, as well as combinations and mixtures thereof.
  • the fine particulate silica is the fine particulate silica.
  • this can either be replaced or supplemented by a specific porous carbonate pigment, more specifically by a fine particulate ground calcium carbonate with surface and internal structure modification as a result of treatment with one or more medium to strong H 3 O + ion providers and optionally with additional treatment of gaseous carbon dioxide.
  • a specific porous carbonate pigment more specifically by a fine particulate ground calcium carbonate with surface and internal structure modification as a result of treatment with one or more medium to strong H 3 O + ion providers and optionally with additional treatment of gaseous carbon dioxide.
  • silica gel is not only difficult to handle in the coating process (e.g. problem of low solids of silica aqueous pigment slurries and prepared coatings and problem of dust formation) and leads to a number of side-effects of the prepared coatings which have to be corrected for e.g. by additional constituents of the coating formulation, but in addition to that the replacement provides a very attractive cost advantage as silica gel pigments usually are relatively expensive.
  • the pre-coat formulation may go down to a minimum of one part in dry weight even, the other pigments complementing to 100 parts in dry weight.
  • a preferred embodiment of this aspect of the invention is characterised in that the fine particulate ground calcium carbonate with surface and internal structure modification and optionally an additional treatment with gaseous carbon dioxide has a median particle size in the range of approximately 1.5-2.5 ⁇ m. It is also advantageous if the fine particulate ground calcium carbonate with surface and internal structure modification and optionally an additional treatment with gaseous carbon dioxide has an average internal pore size in the range of 0.01-0.1 ⁇ m, preferably in the range of 0.03-0.08 ⁇ m, most preferably around 0.05 ⁇ m.
  • the fine particulate ground calcium carbonate with surface and internal structure modification and optionally an additional treatment with gaseous carbon dioxide preferably has a surface area in the range of 30-80 m 2 /g, preferably in the range of 50-70 m 2 /g.
  • the fine particulate ground calcium carbonate with surface and internal structure modification and optionally an additional treatment with gaseous carbon dioxide can advantageously have a particle size distribution such that 73-83% of the particles is smaller than 2 ⁇ m, and that 35-44% of the particles is smaller than 1 ⁇ m.
  • a very good porosity ideal for fast ink setting properties of the final high gloss paper can be achieved if the fine particulate ground calcium carbonate with surface and internal structure modification and optionally an additional treatment with gaseous carbon dioxide is preferably of the so-called roses type.
  • the individual particles of this pigment with a clustered nano-sized platelet structure and with internal nano-sized pores are of generally round and almost spherical shape, and they look similar to if not identical to the ones as disclosed in annex 4 of US 2006/0162884 .
  • Hydrocarb V70 forms are possible, e.g. the so-called eggs, golf balls, brains and Beluga/Kaviar types as disclosed e.g. in the publications
  • the pre-coat layer uses one or several standard fine particulate calcium carbonates, preferably a precipitated (PCC) or ground (GCC) calcium carbonate type.
  • PCC precipitated
  • GCC ground
  • Preferred is a standard anionic PCC type with a surface area in the range of 2-40 m 2 /g.
  • the carbonates can be intrinsically porous types, for example the above-mentioned fine particulate ground calcium carbonate type with surface and internal structure modification.
  • the pre-coat layer comprises 100 parts in dry weight of a pigment part consisting of 40-75 parts in dry weight, preferably 50-60 parts in dry weight, of a fine particulate ground or precipitated calcium carbonate; 25-70 parts in dry weight, preferably 40-60 parts in dry weight of at least one fine particulate silica pigment and/or of a fine particulate ground calcium carbonate with surface and internal structure modification as a result of treatment with one or more medium to strong H 3 O + ion providers and optionally with additional treatment of gaseous carbon dioxide.
  • the silica part in the pre-coat consists of colloidal silica only
  • a certain minimum amount of silica gel is necessary for achieving this reduced bleeding behaviour, however for rheological reasons the silica gel contents should not be too high.
  • the fine particulate silica pigment in the pre-coat layer is composed of 5-50, preferably 10-50 parts in dry weight of a colloidal silica and 10-40 parts in dry weight of a silica gel.
  • the fine particulate silica pigment in the pre-coat layer is composed of 10-30, preferably 15-30, parts in dry weight of a colloidal silica and of 20-35, preferably 25-35 parts in dry weight of a silica gel.
  • the silica gel in the pre-coat layer can have a particle size distribution such that the average particle size is in the range of 0.1-10 ⁇ m, preferably below 7 ⁇ m and most preferably below 4.0 ⁇ m.
  • the pore volume of the silica gel is above 1.0 cm 3 /g, more preferably more than 1.5cm 3 /g.
  • the colloidal silica in the pre-coat layer can have a particle size distribution such that the average particle size is in the range of 10 - 120 nm, preferentially 40 - 100nm.
  • a further preferred embodiment of the present invention is characterised in that the binder part in the pre-coat layer comprises a latex binder and a second binder selected from the group of polyvinyl pyrrolidone binder, PVA, gelatine and mixtures thereof.
  • the binder part comprises 2-20, preferably 2-14 (or even 2 - 6) parts in dry weight of a latex binder, preferably a styrene butadiene-binder and 2-8, preferably 4-8 parts in dry weight of a polyvinyl pyrrolidone binder, preferably of polyvinyl pyrrolidone with a molecular weight of more than 20'000 Da, even more preferably of more than 30'000 Da, most preferably in the range of 40'000 Da - 80'000 Da.
  • a still further preferred embodiment of the present invention is characterised in that the pre-coat layer comprises 100 parts in dry weight of a pigment part consisting of 50-75 parts in dry weight, preferably 40-60 parts in dry weight, of a particulate ground or precipitated calcium carbonate, wherein the particulate calcium carbonate has a particle size distribution such that 60% of the particles are smaller than 2 ⁇ m, preferably such that 50 % of the particles are smaller than 1 ⁇ m, even more preferably smaller than 0.7 ⁇ m; further it preferably comprises 25-50 parts in dry weight, preferably 40-60 parts in dry weight of a fine particulate silica pigment, e.g. consisting of the two silica types as mentioned above.
  • this layer comprises
  • the particulate, preferably solid or vacuolated polymer pigment in the image receiving coating layer has a particle size distribution such that more than 90 % of the particles are smaller than 0.5um, preferably with a particle size distribution such that 90 % of the particles have sizes between 0.05 and 0.3 ⁇ m, in particular between 0.1 and 0.2 ⁇ m, or in the case of a vacuolated polymer pigment also with a mean particle size range of about 0.6 - 1 ⁇ m.
  • the polymer pigment biopolymer and/or plastic pigment
  • a further embodiment of the present invention is characterised in that the binder part in the image receiving coating layer consists of a PVA-binder, a PVP-binder, a gelatine binder or mixtures thereof.
  • the image receiving coating layer comprises a mordant for the dyes.
  • a mordant for the dyes In order not to disturb the anionic (silica) surroundings in this coating the (cationic, preferably polymeric) mordant content should be as low as possible while still allowing fixation of the dye. This can be achieved if the mordant is present in 0.1 - 1.5, preferably 0.5-1.5 parts in dry weight thereof.
  • the image receiving coating is directly adjacent to the pre-coat layer.
  • the pre-coat layer has a coating thickness in the range of 5-30 g/m 2 preferably in the range of 10-20 g/m 2
  • the topcoat layer has a coating thickness in the range of 2-20 g/m 2 , preferably of 5-10 g/m 2 .
  • the coating layer is without problems to have a pre-coat formulation essentially free of cationic (e.g. mordant) components. It is furthermore preferred if the image receiving coating is transparent.
  • the present coatings can be supplemented with additives, and the additives in the pre-coat and/or the image receiving coating can be selected from the group of defoamers, colorants, brighteners, dispersants, thickeners, water retention agents, preservatives, crosslinkers, lubricants and pH control agents, mordants and mixtures thereof.
  • the image receiving coating layer (but preferably not at the pre-coat) may comprise a cationic mordant for the dye as an additive. Beneficially, this in an amount of 0.1-1.5 parts per dry weight, preferably 0.5-1 parts per dry weight.
  • colloidal silica pigment in the image receiving coating layer and/or in the pre-coat can be an unmodified anionic colloidal silica.
  • the fine particulate calcium carbonate pigment in the pre-coat can be a precipitated calcium carbonate pigment, preferably a needle-shaped type and/or an anionic type. It may also be of the above-mentioned fine particulate ground calcium carbonate type with surface and internal structure modification.
  • the end paper can have a gloss above or equal to 45% according 75°DIN, preferably above or equal to 50%, even more preferably above or equal to 55%, so very high-gloss levels can be achieved especially after calendering.
  • the present invention relates to a method for producing an inkjet paper as given above.
  • this method is characterised in that in a first step the pre-coat formulation is applied to the paper substrate with a solids content above 40%, preferably in the range of 50-60%, most preferably in the range of 50-55%, and wherein subsequently in a second step the image receiving coating layer formulation is applied with a solids content above or equal to 40%, preferably between 40 and 55%, most preferably between 40 and 50%.
  • the coating formulations can be applied with a relatively high solids content allowing high production speed and low drying efforts.
  • the formulations are applied using blade coating, rod coating, air knife coating, curtain coating, preferably blade coating with a speed of more than 600 m/min, preferably with a speed of more than 800 m/min, even more preferably with a speed of at least 900 m/min.
  • the paper After application of the two coating layers the paper can be calendered.
  • the obtained coated paper will dry quickly after printing on common ink jet printers and have a high gloss level (up to or even above 55% according DIN75).
  • the coating will be porous contrary to a large part of glossy inkjet papers.
  • a typical recipe is as given in Table 1: Table 1, Precoat layer Parts PCC (e.g. Opacarb A60) 50 Colloidal silica (e.g. Ludox PW50) 20 Silica gel (e.g. Syloid 803) 30 Non-latex-binder, preferably PVP-binder (e.g. PVP or Luvitec K30) 6 Latex binder (e.g. Eurolatex L0607) 4 Additives, e.g. optical brightener 0.5
  • the Opacarb pigment is a fine PCC is available from SMI (Specialty Minerals Inc., USA). It can be replaced with GCC, other PCC types.
  • the Ludox PW50 is a colloidal silica available from Grace Davison, USA. In this recipe any colloidal silica can be used.
  • Syloid C803 is a porous silica gel pigment available from Grace Davison, USA. It can be replaced by other anionic porous pigments such as other silica gel types, the above-mentioned fine particulate ground calcium carbonate type with surface and internal structure modification, alumino silicates, PCC, calcined clay. This pigment provides the main porosity of the coating layer. It can be used from 10 to 50 parts in the coating.
  • PVP or Luvitec K30 is a polyvinyl pyrolidone binder e.g. available from ISP or BASF (DE). In this recipe it is a binder and dye mordant. It can be replaced by other binder types such as polyvinyl alcohol or other PVP grades and copolymers, gelatines.
  • Eurolatex L0607 is a SB latex of supplier EOC. It can be replaced with other latexes (SB or acrylate type).
  • Solids content of the pre coating recipe is maximized. Solids levels are typically between 50 and 55%, preferably between 50 and 60%.
  • the coating layer hereby stays essentially completely anionic.
  • Colour density in the coating layer is obtained by using a combination of colloidal silica and PVP with the PCC.
  • the coating composition can be applied by any number of well known techniques such as blade coating, rod coating, air knife coating, curtain coating. Specific for this coating is that due to the high solids content it can be coated at high speeds typically 900m/min or higher e.g. with the blade coater.
  • the coating thickness can be from 5 till 30 gsm per side but is preferably from 10-20 gsm.
  • Table 2 Image receiving coating layer Parts Colloidal silica (e.g. Ludox PW50) 80 Plastic pigment (e.g. DPP 3710) 20 Binder (e.g. Mowiol 4-88) 4 Dye mordant (e.g. Induquat ECR 35 L or Cartafix VXU) 1
  • Colloidal silica e.g. Ludox PW50
  • Plastic pigment e.g. DPP 3710
  • Binder e.g. Mowiol 4-88
  • Dye mordant e.g. Induquat ECR 35 L or Cartafix VXU
  • the top coating layer is highly porous to obtain a fast flow of the inkjet fluids to the absorptive pre-coating.
  • the Ludox PW50 is colloidal silica. In this recipe any anionic colloidal silica can be used.
  • DPP 3710 is a plastic pigment particle available from Dow Chemicals. It provides high gloss levels and can be replaced with other plastic pigment types.
  • Mowiol 4-88 is a PVOH based binder available from Kuraray. It can be replaced with other hydrophilic binders such as PVP, gelatine. It can be used from 0 to 20 parts.
  • Induquat ECR35L available from Indulor Chemie or Cartafix VXU from Clariant is used as a cationic mordant (poly-DADMAC). It can be used from 0.1 to 1.5 parts. It can be replaced/supplemented with other mordant types.
  • the amount of mordant in the coating recipe can be kept low to keep the total coating recipe in an overall anionic state.
  • Solids content of the top coating recipe is maximized. Solids levels are typically between 40 and 50%, preferably between 40 and 55%.
  • the top coating composition can be applied by any number of well known techniques such as blade coating, rod coating, air knife coating, curtain coating. Specific for this coating is that due to the high solids content it can be coated at high speeds typically 900m/min or higher, preferably with a blade coater.
  • the coating yield for the top coating can be from 2 till 20 gsm per side but is preferably from 5-10 gsm.
  • a new coating development has lead to a coating recipe that shows good inkjet printability, quick ink drying and high gloss.
  • This coating can be applied with blade at high speeds and is overall anionic of nature.
  • the development is consisting of a special pre-coating layer in combination with a highly porous top coating layer. After calendering the coating can be printed on a variety of commercial ink-jet printers with different settings to become photo quality prints with lifelike colours. High gloss levels can be obtained while maintaining enough porosity for the inkjet printability of the medium. Colour gamut and optical density are on the accepted high level of commercial papers.
  • mordants are cationic polymers which are also used for water fastness of the prints. It is easy to use this kind of polymers when all the other pigments in the coating bear the same charge, thus are being cationic (e.g. as detailed in WO 01/45956 ). In regular pigmented inkjet papers this is not an issue since alumina is a cationic pigment by nature and silicas are available in cationic grades as well.
  • the proposal here is to add low amounts of cationic polymers to the coating, resulting in a unique overall anionic ink jet coating concept. Upon wetting with the inkjet fluids these polymers will still be able to bind the anionic dyes and provide further improved colours of the prints.
  • the pre-coat layer was applied at 17 gsm and the top coating layer at 8 gsm. In this way coating machine speed of up to 900 m/min were possible.
  • the paper was calendered to a gloss level of 55% or 55.6% according 75°DIN.
  • This paper does show the right optical density levels and has vivid colours. It shows no bleed at Epson, HP and the Canon.
  • the paper could produce photo quality prints on various pre-installed settings for photo paper on various printers, also photo printing software packages delivered with the printer can be used for good quality prints.
  • the paper was also tested on a commercial large format printer The prints produced were clear and sharp.
  • the current invention preferably contains two coating layers: a pre-coating and a top coating as follows:
  • Main pre-coat components colloidal silica and PVP are supposed to actually fix the dyes; Colloidal silica such as Ludox PW50 equal/above 10 pph; inter-particle porosity provides (additional) absorptivity ; can be fully or partially replaced by the above-mentioned fine particulate ground calcium carbonate type with surface and internal structure modification; Carbonate such as PCC Opacarb A60 can be replaced by e.g.
  • Top coating layer is preferably transparent.
  • the top coating is thus preferably consisting out of:
  • Solids content of new pre-coat (practically) 50-55% and topcoat 48-50%, normally 50% max. versus about only 10-30% for regular ink jet coating; allows high coating application speeds up to 900 - 1100 m/min.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)

Claims (15)

  1. Méthode pour la production d'un papier à jet d'encre comprenant au moins une couche de revêtement récepteur d'image et au moins une couche de pré-revêtement sous ladite couche de revêtement récepteur d'image sur un papier substrat, dans laquelle
    la couche de pré-revêtement comprend
    100 parties en poids sec d'une partie de pigment se composant de
    20-75 parties en poids sec d'un carbonate de calcium et/ou kaoline particulaire fin;
    10 - 70 parties en poids sec d'un silice particulaire fin et/ou d'un carbonate de calcium particulaire fin moulu avec modification de surface et structure interne résultante d'un traitement avec un ou plusieurs fournisseurs moyens à forts de ions H3O+ et optionnellement avec un traitement supplémentaire au dioxyde de carbone gazeux; et
    0 - 30 parties de pigments particulaires fins supplémentaires,
    4 - 20 parties en poids sec d'une partie de liant
    0-6 parties en poids sec d'additifs;
    et la couche de revêtement récepteur d'image comprend
    100 parties en poids sec d'une partie de pigment se composant de
    50 - 100 parties en poids sec d'une silice particulaire fine; et
    0 - 50 parties en poids sec d'un pigment polymère particulaire fin;
    et
    0 - 30 parts de pigments supplémentaires particulaires fins
    2 - 10 parties en poids sec d'un liant,
    0-3 parties en poids sec of additives,
    dans laquelle, dans une première étape, la formulation de pré-revêtement est appliquée au papier substrat avec un contenu de solides au-delà de 40% et dans laquelle subséquemment, dans une deuxième étape, la formulation de couche de revêtement récepteur d'image est appliquée avec un contenu de solides au-delà de, ou égal à, 40%.
  2. Méthode selon la revendication 1, dans laquelle la formulation de pré-revêtement est appliquée au papier substrat avec un contenu de solides dans le domaine de 50-60%, préférablement dans le domaine de 50-55%, dans laquelle préférablement la formulation est appliquée en utilisant le couchage à racle, couchage à barre, couchage à lame d'air, couchage à rideau.
  3. Méthode selon l'une quelconque des revendications précédentes, dans laquelle la formulation de couche de revêtement récepteur d'image est appliquée avec un contenu de solides entre 40-55%, préférablement entre 40 et 50%, dans laquelle préférablement la formulation est appliquée en utilisant le couchage à racle, couchage à barre, couchage à lame d'air, couchage à rideau, et dans laquelle préférablement après l'application des deux couches de revêtement, le papier est calandré.
  4. Méthode selon l'une quelconque des revendications précédentes, dans laquelle au moins une des formulations est appliquée en utilisant le couchage à racle avec une vitesse supérieure à 600 m/min, préférablement avec une vitesse supérieure à 800 m/min, même plus préférablement avec une vitesse d'au moins 900 m/min.
  5. Méthode selon l'une quelconque des revendications précédentes, dans laquelle le pré-revêtement et/ou les formulations de revêtement récepteur sont dans un état généralement anionique.
  6. Papier à jet d'encre, préférablement élaboré en utilisant la méthode selon l'une quelconque des revendications précédentes, comprenant au moins une couche de revêtement récepteur d'image et au moins une couche de pré-revêtement sous ladite couche de revêtement récepteur d'image sur un papier substrat, dans lequel
    la couche de pré-revêtement comprend
    100 parties en poids sec d'une partie de pigment se composant de
    20-75 parties en poids sec d'un carbonate de calcium et/ou kaoline particulaire fin;
    10 - 70 parties en poids sec d'une silice particulaire fine et/ou d'un carbonate de calcium particulaire fin moulu avec modification de surface et structure interne résultante d'un traitement avec un ou plusieurs fournisseurs moyens à forts de ions H3O+ et optionnellement avec un traitement supplémentaire au dioxyde de carbone gazeux et
    0 - 30 parties de pigments particulaires fins supplémentaires
    4 - 20 parties en poids sec d'une partie de liant
    0-6 parties en poids sec d'additifs;
    et la couche de revêtement récepteur d'image comprend
    100 parties en poids sec d'une partie de pigment se composant de
    50 - 100 parties en poids sec d'une silice particulaire fine; et
    0 - 50 parties en poids sec d'un polymère particulaire fin, comme un pigment en plastique et/ou biopolymère,; et
    0 - 30 parties de pigments particulaires fins supplémentaires
    2 - 10 parties en poids sec d'un liant
    0-3 parties en poids sec d'additifs.
  7. Papier à jet d'encre selon la revendication 6, dans laquelle la couche de pré-revêtement comprend 100 parties en poids sec d'une partie de pigment se composant de
    40-75 parties en poids sec, préférablement 50-60 parties en poids sec, d'un carbonate de calcium fin particulaire, moulu ou précipité;
    25-70 parties en poids sec, préférablement 40-60 parties en poids sec d'un pigment de silice fin
    particulaire et/ou d'un carbonate de calcium of a particulaire fin moulu avec modification de surface et structure interne résultante d'un traitement avec un ou plusieurs fournisseurs moyens à forts de ions H3O+ et optionnellement avec un traitement supplémentaire au dioxyde de carbone gazeux,
    dans lequel préférablement le pigment de silice particulaire fin dans la couche de pré-revêtement est composé de 5 - 50, préférablement 10-50 parties en poids sec d'une silice colloïdale et 10-40 parties en poids sec d'un gel de silice,
    et dans lequel plus préférablement le pigment de silice particulaire fin dans la couche de pré-revêtement est composé de 10 - 30, préférablement 15-30 parties en poids sec d'une silice colloïdale et 20-35, préférablement 25-35 parties en poids sec d'un gel de silice,
    et dans lequel même plus préférablement le gel de silice dans la couche de pré-revêtement a une distribution de taille de particules de manière à ce que la taille moyenne de particule est dans le domaine de 0.1-10 um, préférablement en dessous de 7 um et plus préférablement en dessous de 4.0 um et/ou la silice colloïdale dans la couche de pré-revêtement a une distribution de taille de particules de manière à ce que la taille moyenne de particule est dans le domaine de 10 - 120 nm, préférablement 40 - 100 nm.
  8. Papier à jet d'encre selon l'une quelconque des revendications 6 - 7, dans lequel la partie de liant dans la couche de pré-revêtement comprend un liant latex et un deuxième liant choisi du groupe de liants polyvinyle-pyrrolidone, PVA, gelatine et mélanges de ceux-ci, dans lequel plus préférablement la partie de liant comprend 2-20, préférablement 2-14 parties en poids sec d'un liant latex, préférablement un liant styrène-butadiène et 2-8, préférablement 4-8 parties en poids sec d'un liant polyvinyle-pyrrolidone, préférablement de polyvinyle-pyrrolidone avec un poids moléculaire de plus de 20'000 Da, même plus préférablement de plus de 30'000 Da, plus préférablement dans le domaine de 40'000 Da - 80'000 Da.
  9. Papier à jet d'encre selon l'une quelconque des revendications 6-8, dans lequel la couche de pré-revêtement comprend 100 parties en poids sec d'une partie de pigment se composant de
    50-75 parties en poids sec, préférablement 40-60 parties en poids sec, d'un carbonate de calcium fin
    Particulaire, moulu ou précipité, dans lequel le carbonate de calcium particulaire fin a une distribution de taille de particules de manière à ce que 50 % des particules sont inférieures à 1 um, préférablement inférieures à 0.7 um;
    25-50 parties en poids sec, préférablement 40-60 parties en poids sec d'un pigment de silice fin
    particulier et/ou d'un carbonate de calcium particulaire fin moulu avec modification de surface et structure interne résultante d'un traitement avec un ou plusieurs fournisseurs moyens à forts de ions H3O+ et optionnellement avec un traitement supplémentaire au dioxyde de carbone gazeux.
  10. Papier à jet d'encre selon l'une quelconque des revendications 6 - 9, dans lequel la couche de revêtement récepteur d'image comprend
    100 parties en poids sec d'une partie de pigment se composant de
    60 - 100, préférablement 60 - 90 parties en poids sec d'un pigment de silice particulaire fine colloïdale ; et
    0 - 40, préférablement 10 - 40 parties en poids sec, préférablement 10-30 parties en poids sec, d'un pigment polymère particulaire fin;
    3 - 6 parties en poids sec d'un liant
    0-2 parties en poids sec d'additifs.
  11. Papier à jet d'encre selon la revendication 10, dans lequel le pigment polymère particulaire, préférablement solide ou vacuolé dans la couche de revêtement récepteur d'image a une distribution de taille de particules de manière à ce que plus de 90 % des particules sont inférieures à 0.5 um, préférablement avec une distribution de taille de particules de manière à ce que 90 % of the particules ont des tailles entre 0.05 et 0.3 um, en particulier entre 0.1 et 0.2 um, ou dans le cas d'un pigment polymère vacuolé aussi avec taille de particules moyenne d'environ 0.6 -1 um.
  12. Papier à jet d'encre selon l'une quelconque des revendications 6 - 11, dans lequel la partie de liant dans la couche de revêtement récepteur d'image se compose d'un liant PVA, d'un liant PVP, d'un liant gélatine ou de mélanges de ceux-ci
    et/ou dans lequel la couche de revêtement récepteur d'image comprend un mordant pour colorants, préférablement 0.1-1.5, préférablement 0.5 - 1.5 parties en poids sec de celui-ci
    et/ou dans lequel le revêtement récepteur d'image est directement adjacent à la couche de pré-revêtement
    et/ou dans lequel la couche de pré-revêtement a une épaisseur de couche dans le domaine de 5-30 g/m2, préférablement dans le domaine de 10-20 g/m2, et dans lequel la couche de revêtement supérieur a une épaisseur de couche dans le domaine de 2-20 g/m2, préférablement de 5-10 g/m2
    et/ou dans lequel la formulation de pré-revêtement est essentiellement libre de composantes cationiques
    et/ou dans lequel la charge du revêtement est généralement anionique
    et/ou dans lequel le revêtement récepteur d'image est transparent
    et/ou dans lequel les additifs dans le pré-revêtement et/ou le revêtement récepteur d'image sont choisis du groupe de antimoussants, colorants, azurants, dispersants, épaississants, agents de rétention d'eau, conservateurs, agent de réticulation, lubrifiants et agents de contrôle de pH agents et mélanges de ceux-ci,
    et/ou dans lequel la couche de revêtement récepteur d'image comprend un mordant pour colorants cationique comme additif dans une quantité de 0.1-1.5 parties par poids sec, préférablement 0.5-1 parties par poids sec
    et/ou dans lequel la couche de pré-revêtement est essentiellement libre d'additifs mordants cationiques.
  13. Papier à jet d'encre selon l'une quelconque des revendications 6-12, dans lequel le pigment de silice colloïdale dans la couche de revêtement récepteur d'image est une silice non-modifiée anionique colloïdale
    et/ou dans lequel le pigment de carbonate de calcium particulaire fin dans le pré-revêtement est un pigment carbonate de calcium précipité, préférablement du type en forme d'aiguille et/ou du type anionique.
  14. Papier à jet d'encre selon l'une quelconque des revendications 6 - 13, dans laquelle le papier de fin a un brillance au-delà de, ou égale à, 45% selon 75° DIN, préférablement au-delà de, ou égale à, 50%, même plus préférablement au-delà de, ou égale à, 55%.
  15. Papier à jet d'encre selon l'une quelconque des revendications 6 - 14, dans laquelle le pré-revêtement et/ou la(les) couche(s) de revêtement récepteur sont généralement anionique(s).
EP08784771.1A 2007-07-20 2008-07-15 Papier pour impression à jet d'encre Revoked EP2170618B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08784771.1A EP2170618B1 (fr) 2007-07-20 2008-07-15 Papier pour impression à jet d'encre

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP07014265 2007-07-20
PCT/EP2008/005763 WO2009012912A1 (fr) 2007-07-20 2008-07-15 Papier pour impression à jet d'encre
EP08784771.1A EP2170618B1 (fr) 2007-07-20 2008-07-15 Papier pour impression à jet d'encre

Publications (2)

Publication Number Publication Date
EP2170618A1 EP2170618A1 (fr) 2010-04-07
EP2170618B1 true EP2170618B1 (fr) 2015-10-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08784771.1A Revoked EP2170618B1 (fr) 2007-07-20 2008-07-15 Papier pour impression à jet d'encre

Country Status (2)

Country Link
EP (1) EP2170618B1 (fr)
WO (1) WO2009012912A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009012912A1 (fr) 2007-07-20 2009-01-29 Sappi Netherlands Services B.V. Papier pour impression à jet d'encre
US8361572B2 (en) † 2009-10-30 2013-01-29 Hewlett-Packard Development Company, L.P. Coated medium for inkjet printing
EP2734380B1 (fr) 2011-07-22 2016-11-09 Hewlett-Packard Development Company, L.P. Support d'enregistrement à jet d'encre
HUE027523T2 (en) * 2012-03-23 2016-11-28 Omya Int Ag Production of pigments

Citations (5)

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Publication number Priority date Publication date Assignee Title
EP0938980A2 (fr) 1998-02-26 1999-09-01 Oji Paper Company Limited Matériau d'enregistrement par jet d'encre
US5985424A (en) 1998-02-09 1999-11-16 Westvaco Corporation Coated paper for inkjet printing
US20070134450A1 (en) 2005-12-14 2007-06-14 Campbell Bruce C Inkjet recording media comprising precipitated calcium carbonate
WO2009012912A1 (fr) 2007-07-20 2009-01-29 Sappi Netherlands Services B.V. Papier pour impression à jet d'encre
EP2167324B1 (fr) 2007-07-09 2011-04-06 SAPPI Netherlands Services B.V. Papier pour impression offset

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
AU1006001A (en) * 2000-01-06 2001-07-12 Westvaco Corporation Glossy inkjet coated paper
GB0415212D0 (en) * 2004-07-07 2004-08-11 Eastman Kodak Co Ink-jet receiver having improved gloss
US8563115B2 (en) 2008-08-12 2013-10-22 Xerox Corporation Protective coatings for solid inkjet applications

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5985424A (en) 1998-02-09 1999-11-16 Westvaco Corporation Coated paper for inkjet printing
EP0938980A2 (fr) 1998-02-26 1999-09-01 Oji Paper Company Limited Matériau d'enregistrement par jet d'encre
US20070134450A1 (en) 2005-12-14 2007-06-14 Campbell Bruce C Inkjet recording media comprising precipitated calcium carbonate
EP2167324B1 (fr) 2007-07-09 2011-04-06 SAPPI Netherlands Services B.V. Papier pour impression offset
WO2009012912A1 (fr) 2007-07-20 2009-01-29 Sappi Netherlands Services B.V. Papier pour impression à jet d'encre

Non-Patent Citations (2)

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Title
NEWCHEM CORPORATION: "Newrane 4400 Ink Jet Receptive Top Coat", PRODUCT SHEET, 2005, pages 1, XP003035194, Retrieved from the Internet <URL:http://www.newchem.com/n4000.htm>
NORDSON CORPORATION: "Painter's Math", LIQUID FINISHING SYSTEMS, 2001, pages 1 - 3, XP055178023

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Publication number Publication date
WO2009012912A1 (fr) 2009-01-29
EP2170618A1 (fr) 2010-04-07

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