EP1226959B1 - Matériau poreux pour l'enregistrement par jet d'encre - Google Patents

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

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Publication number
EP1226959B1
EP1226959B1 EP02000747A EP02000747A EP1226959B1 EP 1226959 B1 EP1226959 B1 EP 1226959B1 EP 02000747 A EP02000747 A EP 02000747A EP 02000747 A EP02000747 A EP 02000747A EP 1226959 B1 EP1226959 B1 EP 1226959B1
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EP
European Patent Office
Prior art keywords
pigment
layer
recording material
ink
particle size
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.)
Expired - Lifetime
Application number
EP02000747A
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German (de)
English (en)
Other versions
EP1226959A3 (fr
EP1226959A2 (fr
EP1226959B2 (fr
Inventor
Richard Anthony Barcock
Alastair Stuart Dodds
Aiden Joseph Lavery
Marguerite Claire Quinn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Felix Schoeller Jr Foto und Spezialpapiere GmbH
Original Assignee
Felix Schoeller Jr Foto und Spezialpapiere GmbH
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Publication date
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Application filed by Felix Schoeller Jr Foto und Spezialpapiere GmbH filed Critical Felix Schoeller Jr Foto und Spezialpapiere GmbH
Publication of EP1226959A2 publication Critical patent/EP1226959A2/fr
Publication of EP1226959A3 publication Critical patent/EP1226959A3/fr
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Publication of EP1226959B1 publication Critical patent/EP1226959B1/fr
Publication of EP1226959B2 publication Critical patent/EP1226959B2/fr
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Expired - Lifetime legal-status Critical Current

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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
    • B41M5/502—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

Definitions

  • the invention relates to a recording material for the inkjet printing process comprising a support and at least one lower pigment-containing and one upper pigment-containing layer.
  • tiny ink droplets are applied to and recorded on a recording material by various techniques already described several times.
  • the recording material is subject to various requirements, such as high printed dot density, high ink receptivity, short drying time and adequate wiping resistance, underexceeded colorant diffusion (bleed), low mottle and high waterfastness , Other requirements, especially for photo-like prints, is a uniform print gloss and surface gloss of the recording material.
  • the recording layers originally had a high content of a water-swelling binding agent, for example, polyvinyl alcohol and gelatin.
  • This binder was applied to either the base paper or a polyolefin coated substrate.
  • Such materials have the advantage that they shine and very high color densities after the Have pressure. This also applies to systems based on gelatin.
  • a major drawback is the long drying times, which can lead to surface quality deterioration when handling the prints.
  • mesoporous systems which, due to voids in the applied layer, can rapidly absorb the ink during printing and are particularly suitable for piezo-type printheads.
  • These recording materials generally contain a high pigment content.
  • the pigments have a size in the nanometer range, in particular below the wavelength of visible light, ie less than 400 nm, in order to ensure a glossy surface.
  • These recording materials have excellent image quality due to good color fixation. They have a short drying time and problems with coalescence and bleed do not occur.
  • mesoporous systems are sensitive to exposure to light and ozone. Silver salt photographs are lightfast over a period of 15 to 20 years and inkjet images should be lightfast for at least as long.
  • US Pat. No. 5,965,244 proposes mixing porous silica with colloidal silica to produce a porous marking layer.
  • a wide distribution of particle sizes is preferred in order to increase the packing density of the particles and to increase the ink movement caused by the capillary action of the pores.
  • EP-A-1016542 discloses an ink jet recording material comprising a support and at least one lower pigment-containing and upper pigment-containing layer, wherein the upper layer pigment is silicic acid and is present in two coma fractions (a, b) and one grain size fraction (a) in one Range of 1 to 10 nm and the other grain size fraction (b) is in a range of 10 and 100 nm and the pigment of the lower layer is alumina having boehmite structure and its average grain size is 1 to 50 nm.
  • the invention has for its object to provide a recording material for the ink-jet printing process, which has a high gloss, high color density, light stability, large gamut and high image resolution.
  • the recording material should also have a short drying time, good water resistance and high ink receptivity.
  • an ink jet recording material having a support and at least one lower pigment-containing and upper pigment-containing layer, wherein the upper layer pigment is present in two grain size fractions (A, B) and one grain size fraction (A) within a range of 10 to 100 nm and the other grain size fraction (B) is in a range of 1,000 to 3,000 nm, and the pigment of the lower layer is different from that of the upper layer and its average grain size is different from the average grain sizes of the upper layer pigment.
  • Such a pigment with accumulations of grain sizes at two different points of the particle size scale is referred to as bimodal pigment according to the invention.
  • the different particle sizes can be based on the formation of different sized secondary particles (agglomerates) of a pigment. They may also be based on having one part of the pigment as primary particles and another part of the pigment as secondary particles.
  • the novel recording material is suitable for inks containing dyes and for pigmented inks.
  • This provides universal usability for a variety of printers.
  • the ink liquid is quickly taken up by the lower layer, whereby the dyes or color pigments of the ink are fixed to the surface of the upper layer. It is believed that a system of crosslinked pores is formed in the upper layer by the pigments chosen according to the invention.
  • the pigment used in the upper layer according to the invention shows a distribution of particles in the range of 10 to 100 nm with an average particle size of 70 to 90 nm, more preferably 75 to 85 nm, and a further distribution in the range of 1000 to 3000 nm with a average particle size of 2,300 to 2,800 nm, more preferably 2,400 to 2,600 nm.
  • the top layer is the layer to which the ink fluid is applied through the printhead of the printer.
  • the particle size of the larger pigment particles of the upper layer is preferably about 20 to 30 times the particle size of the smaller pigment particles of the upper layer.
  • large pigment particles cause a reduction in gloss. Surprisingly, however, it has been found that the gloss of the novel recording material is not impaired by the large pigment particles in the upper layer.
  • the quantitative ratio of the pigment particles of fraction A to the pigment particles of fraction B is preferably from 8: 1 to 20: 1, more preferably from 10: 1 to 15: 1.
  • suitable pigments of the upper layer are aluminum oxide, aluminum hydroxide, aluminum oxide hydrate, silica, barium sulfate and titanium dioxide.
  • the pigment of the upper layer is particularly preferably a pigment based on alumina and predominantly amorphous.
  • the average particle size of the pigment particles of the lower layer is preferably 3 to 4 times the average particle size of the smaller particles of the upper layer.
  • the grain size distribution of the lower layer pigment is preferably in the range of 150 to 1,000 nm with an average particle size of 240 to 350 nm, preferably 260 to 290 nm.
  • suitable pigments of the lower layer are aluminum oxide, aluminum hydroxide, aluminum oxide hydrate, silica, barium sulfate and titanium dioxide.
  • Particularly preferred pigment of the lower layer is a pigment based on amorphous silica. Such a pigment may be cationically modified.
  • the upper and lower layers contain a binder common in paper coating.
  • the binder is preferably a water-soluble and / or water-dispersible polymer.
  • Suitable binders are, for example, polyvinyl alcohol, completely or partially saponified, cationically modified polyvinyl alcohol, silyl-containing polyvinyl alcohol, acetal groups Polyvinyl alcohol, gelatin, polyvinyl pyrrolidone, starch, hydroxyethyl starch, carboxymethyl cellulose, polyethylene oxide, polyethylene glycol, styrene / butadiene latex and styrene / acrylate latex.
  • the amount of the binder in the upper and lower layers is 5 to 35, preferably 10 to 30 wt.%, Based on the weight of the dried layer.
  • the top and bottom layers may contain conventional additives and auxiliaries for ink receiving layers such as surfactants, crosslinking agents and color fixing agents such as polyammonium compounds.
  • a crosslinking agent-containing layer is formed between the upper and lower layers.
  • Suitable crosslinking agents are, for example, epichlorohydrin, boric acid, boric acid salts, boron oxides, 3-glycidoxypropyltimethoxysilane, titanium (IV) diisopropoxide bis (acetylacetonate), titanium (IV) (triethanol) aminate) isopropoxide, glyoxal and chromium alum.
  • the order quantity can be 0.25 to 0.5 g / m 2 .
  • a cross-linking agent layer between the lower and the upper layer avoids the decrease of the binder from the upper to the lower layer.
  • the crosslinking agent layer thus has the function of a barrier layer for the binder.
  • the recording material has a smoother surface, which contributes to the overall increase in gloss.
  • the crosslinking agent may also be added to the pigment / binder mixture used to form the upper and / or lower layer and mixed with this be applied to the carrier.
  • the amount of the crosslinking agent in the layer may be 0.1 to 2.0% by weight, especially 0.2 to 1.5% by weight, based on the weight of the dried layer.
  • the lower layer may be formed directly on the carrier.
  • the application thickness of the lower layer may be 10 to 60 ⁇ m, preferably 20 to 50 ⁇ m.
  • the upper layer may be formed directly on the lower layer or on the crosslinking agent-containing layer.
  • the application thickness of the upper layer may be 10 to 60 ⁇ m, preferably 20 to 50 ⁇ m.
  • any base paper can be used as carrier material. Preference is given to surface-sized, calendered or non-calendered or heavily sized base papers.
  • the paper may be acid or neutral sized.
  • the base paper is said to have high dimensional stability and to be able to absorb the liquid contained in the ink without undulation. Papers with high dimensional stability from pulp mixtures of softwood pulps and eucalyptus pulps are particularly suitable. In that regard, reference is made to the disclosure of DE 196 02 793 B1, which describes a raw paper for an inkjet recording material.
  • the base paper may contain other auxiliaries customary in the paper industry and additives such as dyes, optical brighteners or defoamers. The use of scrap pulp and reclaimed waste paper is also possible.
  • a carrier material is a paper coated on one or both sides with polyolefins, in particular with polyethylene. Also suitable is a paper coated with barium sulfate. Also plastic films, for example, polyester or polyvinyl chloride, are suitable as a carrier.
  • the basis weight of the carrier may be 80 to 300 g / m 2 .
  • any well-known application and metering method can be used, such as roller application, engraving, nip method and Lucasbürsten- or Rollrakeldos ist.
  • Particularly preferred is the application by means of a cascade coating machine or a Schlitzg fabricers.
  • the back can be provided with a separate functional layer.
  • Suitable backsheets are described in DE 43 08 274 A1 and DE 44 28 941 A1, to the disclosure of which reference is made.
  • the following tests were carried out using a neutral alkylketendimer and coated on both sides with polyethylene paper of a basis weight of 100 g / m 2 as a carrier.
  • the polyethylene is one of the type LDPE.
  • the front-side coating further contains 0.95% by weight of an optical brightener, 10% by weight of titanium dioxide, 4% by weight of lubricant and 10.8% by weight, based in each case on the mass of the layer, of a pigment concentrate of 10% ultramarine and 90%.
  • LDPE low density polyethylene
  • silica, polyvinyl alcohol and boric acid were mixed, heated to 40 ° C and stirred for 30 minutes. Based on the mass of the mixture obtained, 0.05% by weight of Triton X100 was added and the preparation was adjusted to a solids content of 15%.
  • the resulting lower layer mixture was coated on the polyethylene-coated carrier with a slot caster and dried at 100 ° C for three minutes. The dry application weight was 18 g / m 2 .
  • composition for the top layer alumina, polyvinyl alcohol and boric acid were mixed and heated to 40 ° C. The mixture was stirred for 30 minutes and adjusted to a solids content of 20%. The composition for the top layer was applied to the previously coated support with a slot caster and then dried at 100 ° C for four minutes. The dry application weight was 20 g / m 2 .
  • the values in the table are weight percentages. They relate to the dry weight of the layer.
  • the upper and lower layers have the same composition as in Example 1 except that the upper layer does not contain boric acid. Instead, a 5% boric acid solution was applied to the support coated with the lower layer as an intermediate coat in order to obtain a coating with an application thickness of 0.4 g / m 2 .
  • the application of the upper layer with the composition known from Example 1 to the intermediate crosslinking agent layer took place after wet-on-wet coating.
  • the lower layer of Comparative Example 1 has the identical composition as in Example 1. It is applied in the same layer thickness.
  • alumina having an average particle size of 160 to 170 nm, polyvinyl alcohol and boric acid were mixed and heated to 40 ° C. The mixture was stirred for 30 minutes. The resulting mixture was coated on the previously coated support and then dried at 100 ° C for four minutes. The dry application weight was 20 g / m 2 .
  • the alumina used here is not a so-called bimodal alumina with particle size accumulations at two different sizes but a monodispersed alumina.
  • Aluminum oxide having a mean particle size of 1.56 ⁇ m, polyvinyl alcohol and boric acid were mixed and heated to 40 ° C. It was stirred for 30 minutes and 0.05% Triton X100 mixed. The resulting lower layer mixture was coated on the polyethylene-coated support and dried at 100 ° C. for three minutes. The dry application weight was 18 g / m 2 .
  • the values in the table are weight percentages. They relate to the dry weight of the layer.
  • the resulting recording materials were tested for color density, gloss and print gloss, absorbency, water resistance and light resistance.
  • Color Density The color density was measured with an X-Rite Densitometer Type 428 on the colors cyan, magenta, yellow and black. The basis of the tests are color prints of different printer types. The higher the value for a particular color, the better the color density.
  • Printing gloss The printing gloss was measured with a gloss meter of Dr. Ing. Lange GmbH according to DIN 67530 at angles of 20 ° and Measured 60 °. The measurement was made on a black printed part of the recording sheet.

Landscapes

  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Ink Jet (AREA)
  • Duplication Or Marking (AREA)

Claims (9)

  1. Matériau d'enregistrement par jet d'encre avec un support et au moins une couche inférieure contenant un pigment et une couche supérieure contenant un pigment, caractérisé en ce que le pigment de la couche supérieure se présente en deux fractions de granulométrie (A, B) et en ce qu'une fraction de granulométrie (A) se situe dans l'intervalle allant de 10 à 100 nm et l'autre fraction de granulométrie (B) se situe dans l'intervalle allant de 1000 à 3000 nm et en ce que le pigment de la couche inférieure est différent de celui de la couche supérieure et sa granulométrie est différente de la granulométrie moyenne du pigment de la couche supérieure.
  2. Matériau d'enregistrement par jet d'encre suivant la revendication 1, caractérisé en ce que le rapport quantitatif des fractions de granulométrie A à B se situe dans l'intervalle allant de 8:1 à 20:1, en particulier de 10:1 à 15:1.
  3. Matériau d'enregistrement par jet d'encre suivant la revendication 1 ou 2, caractérisé en ce que le pigment de la couche supérieure est un pigment à base d'oxyde d'aluminium et est essentiellement amorphe.
  4. Matériau d'enregistrement par jet d'encre suivant l'une des revendications 1 à 3, caractérisé en ce que la distribution de la granulométrie du pigment de la couche inférieure se situe dans l'intervalle allant de 150 à 1000 nm.
  5. Matériau d'enregistrement par jet d'encre suivant la revendication 4, caractérisé en ce que le pigment de la couche inférieure est un pigment à base d'oxyde de silicium et est amorphe.
  6. Matériau d'enregistrement par jet d'encre suivant la revendication 5, caractérisé en ce que le pigment de la couche inférieure est modifié de manière cationique.
  7. Matériau d'enregistrement par jet d'encre suivant l'une des revendications 1 à 6, caractérisé en ce qu'entre les couches supérieures et inférieures, on forme une couche contenant un agent de réticulation.
  8. Matériau d'enregistrement par jet d'encre suivant l'une des revendications 1 à 7, caractérisé en ce que l'agent de réticulation est choisi parmi le groupe consistant en l'épichlorhydrine, l'acide borique, des sels d'acide borique, l'oxyde de bore, le 3-glycidoxypropyltriméthoxysilane, le diisopropoxyde de bis(acétylacétonate) de titane (IV), l'isopropoxyde de triéthanolaminate de titane (IV), le glyoxal et l'alun de chrome.
  9. Matériau d'enregistrement par jet d'encre suivant l'une des revendications 1 à 8, caractérisé en ce que le support est un papier revêtu d'une polyoléfine.
EP02000747A 2001-01-26 2002-01-12 Matériau poreux pour l'enregistrement par jet d'encre Expired - Lifetime EP1226959B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10103716 2001-01-26
DE10103716A DE10103716C5 (de) 2001-01-26 2001-01-26 Poröses Tintenstrahlaufzeichnungsmaterial

Publications (4)

Publication Number Publication Date
EP1226959A2 EP1226959A2 (fr) 2002-07-31
EP1226959A3 EP1226959A3 (fr) 2004-06-16
EP1226959B1 true EP1226959B1 (fr) 2006-05-03
EP1226959B2 EP1226959B2 (fr) 2011-04-20

Family

ID=34111559

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EP02000747A Expired - Lifetime EP1226959B2 (fr) 2001-01-26 2002-01-12 Matériau poreux pour l'enregistrement par jet d'encre

Country Status (6)

Country Link
US (1) US6855382B2 (fr)
EP (1) EP1226959B2 (fr)
JP (1) JP3964688B2 (fr)
AT (1) ATE324990T1 (fr)
DE (2) DE10103716C5 (fr)
ES (1) ES2262712T5 (fr)

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CN100532113C (zh) 2002-06-04 2009-08-26 佳能株式会社 油墨用记录介质及其制造方法
EP1510354B1 (fr) 2002-06-04 2014-03-12 Canon Kabushiki Kaisha Support d'enregistrement dote d'une couche amoureuse d'encre et procede de production associe
JP4513267B2 (ja) * 2003-02-28 2010-07-28 セイコーエプソン株式会社 クリアインク組成物及びこれを用いた記録方法
DE10309705B4 (de) * 2003-03-06 2005-03-24 Felix Schoeller Jr. Foto- Und Spezialpapiere Gmbh & Co. Kg Ink-Jet Aufzeichnungsblatt mit verbesserter Ozon-und Lichtstabilität
DE10361247A1 (de) * 2003-12-22 2005-07-28 Deutsche Gelatine-Fabriken Stoess Ag Chitosan und dessen Verwendung als Farbfixierungsmittel in Ink-Jet-Aufzeichnungsmaterialien
EP1805036B1 (fr) * 2004-09-27 2010-02-24 Arkwright, Inc. Support d'impression a jet d'encre ayant un revetement permeable au vehicule de l'encre et un revetement microporeux
US8088860B2 (en) * 2004-10-29 2012-01-03 Hewlett-Packard Development Company, L.P. Paper with photo-feel backcoat
GB0604020D0 (en) * 2006-02-28 2006-04-12 Eastman Kodak Co Ink-jet receiver
US8236393B2 (en) * 2009-07-09 2012-08-07 Hewlett-Packard Development Company, L.P. Inkjet recording material

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US6497480B1 (en) * 2001-09-18 2002-12-24 Eastman Kodak Company Ink jet printing method

Also Published As

Publication number Publication date
DE10103716C5 (de) 2005-11-17
US6855382B2 (en) 2005-02-15
ES2262712T3 (es) 2006-12-01
US20030152721A1 (en) 2003-08-14
EP1226959A3 (fr) 2004-06-16
ES2262712T5 (es) 2011-07-08
ATE324990T1 (de) 2006-06-15
JP2002307823A (ja) 2002-10-23
EP1226959A2 (fr) 2002-07-31
EP1226959B2 (fr) 2011-04-20
DE50206607D1 (de) 2006-06-08
DE10103716C1 (de) 2003-02-06
JP3964688B2 (ja) 2007-08-22

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