EP1126081B1 - Support pour couches d'enregistrement - Google Patents

Support pour couches d'enregistrement Download PDF

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Publication number
EP1126081B1
EP1126081B1 EP01103793A EP01103793A EP1126081B1 EP 1126081 B1 EP1126081 B1 EP 1126081B1 EP 01103793 A EP01103793 A EP 01103793A EP 01103793 A EP01103793 A EP 01103793A EP 1126081 B1 EP1126081 B1 EP 1126081B1
Authority
EP
European Patent Office
Prior art keywords
pigment
coating
weight
layer
raw paper
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.)
Revoked
Application number
EP01103793A
Other languages
German (de)
English (en)
Other versions
EP1126081A3 (fr
EP1126081A2 (fr
Inventor
Martina Dr. Wicher
Frank Dr. Römermann
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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Filing date
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 EP1126081A2 publication Critical patent/EP1126081A2/fr
Publication of EP1126081A3 publication Critical patent/EP1126081A3/fr
Application granted granted Critical
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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
    • 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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/502—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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/50—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by form
    • D21H21/52—Additives of definite length or shape
    • 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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/41—Base layers supports or substrates
    • 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
    • B41M5/508—Supports
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/385—Oxides, hydroxides or carbonates
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D21H19/822—Paper comprising more than one coating superposed two superposed coatings, both being pigmented
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D21H19/826—Paper comprising more than one coating superposed two superposed coatings, the first applied being pigmented and the second applied being non-pigmented
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/252—Glass or ceramic [i.e., fired or glazed clay, cement, etc.] [porcelain, quartz, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/258—Alkali metal or alkaline earth metal or compound thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
    • Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/3188—Next to cellulosic
    • Y10T428/31895—Paper or wood
    • Y10T428/31899—Addition polymer of hydrocarbon[s] only
    • Y10T428/31902—Monoethylenically unsaturated

Definitions

  • the invention relates to a layer support for Recording materials, a method for the same Production and its use as a photographic Support and as a support for an ink jet recording material and a thermal Recording material.
  • Polyolefin coated photographic substrates usually consist of a glued base paper, the with polyolefin on both sides, usually by extrusion is coated.
  • the extrusion coating of paper creates the polymer surface depending on the Coating speed of crater-shaped disturbances, so-called pits.
  • pits At high rotation speeds of the cooling cylinder can be in fine recesses the surface of the cooling cylinder enclosed Do not air bubbles before contact with the hot resin escape so that the trapped air only after the Coating the paper to form crater-shaped Wells on the polymer surface escape.
  • This Surface defects have a negative impact on those of one Backing material required and for the image quality decisive surface properties such as gloss and Smooth out.
  • the surface can be improved by Increase in the amount of resin applied this measure is not sufficient for high extrusion speeds and also causes high material costs.
  • US 5 861 209 describes a pigment-coated Paper for gravure printing, being a pigment aragonitic precipitated calcium carbonate with a so-called bimodal particle size distribution used becomes. Through this pigment line, the so-called "missing dot performance" in engraving printing and the Ink absorption improved in this printing process become.
  • US 5 312 484 describes a composite pigment made of titanium dioxide and at least one pigment extender a low refractive index.
  • US 5,605,568 describes a modified calcium carbonate pigment for Coating paper for relief printing Offset printing and engraving printing.
  • EP 0 296 866 A2 discloses a process for making a kaolin pigment with improved optical and Printing properties for coating paper.
  • the US 6th 020 051 relates to an ink from an interference pigment and a water-soluble and / or water-dispersible Binder for printing on the back of for Papers provided with photo base paper bright golden lettering or logos. After this The paper is printed as with photographic Layers usually with a polyolefin resin coated.
  • US 5 759 258 relates to a method for Recycling of mineral pigment fillers Papers.
  • EP 0 285 146 A2 proposes to suppress the Occurrence of pits before, a gas that is lighter than air and can escape through the extruded film to apply the cooling cylinder surface to the To displace air bubbles.
  • the disadvantage of this, however, is the high technical effort.
  • US 4,994,357 proposes the pressure with which the polyethylene coated paper on the cooling cylinder is pressed to suppress the occurrence of pits to increase. Because of the high contact pressure is only a low production speed possible because at higher speeds the polyethylene from the paper can replace.
  • EP 0 952 483 A1 describes a photographic support (base paper), the polyethylene surface of which is of high quality and which is not impaired even by production at high extrusion speeds.
  • EP 0 952 483 A1 proposes to provide the base paper with a layer containing clay, the amount of the clay not exceeding 3.3 g / m 2 .
  • a disadvantage of this carrier material is the insufficient adhesion between the pigment-containing layer and the polyethylene layer extruded thereon.
  • a uniform surface of the carrier material is not only for photographic recording materials from Importance. To get a photo-like look become more non-photographic in the production Recording materials, for example ink-jet papers, papers coated with polyolefin. A uneven or flawed surface of the Backing material is made up of shiny spots on the recorded image is noticeable and is therefore also at these recording materials undesirable.
  • the object of the invention is also to solve problems in the To suppress adhesion of the resin layer on the base paper and a carrier material with high whiteness and To provide rigidity.
  • This task is solved by at least one one side coated with synthetic resin, containing one with at least one on the front Base paper provided with pigment layer, the Pigment layer at least 5 wt.%, Based on the Weight of the total pigment in the pigment layer, one Contains pigments with a narrow grain size distribution, at least 70% by weight of these pigment particles Have a size of less than 1 ⁇ m and at least 40 % By weight of these particles has a particle size of 0.35 to 0.8 ⁇ m have, the resin layer at least on the pigment layer is applied.
  • Preferably 50 to 80% by weight of the particles are present a grain size of less than 1 ⁇ m 0.35 to 0.8 ⁇ m.
  • the percentage of pigment with the narrow distribution can be 10 to 90% by weight, especially preferably 30 to 80% by weight of the total pigment of the Pigment layer.
  • pigments with a narrow grain size distribution understood at least about 70% by weight of the pigment particles are smaller than has about 1 micron and at 40 to 80 wt.% This Pigment particles the difference between the pigment with the largest grain size (diameter) and the pigment of the smallest grain size is less than about 0.4 ⁇ m.
  • the layer supports according to the invention differ from the layer supports of EP 0 952 483 A1 by the use of a pigment with a specific particle size distribution or by the use of a selected surface-modified calcium carbonate.
  • the layer support according to the invention is not subject to the restriction with respect to an upper limit of 3.3 g / m 2 of the clay contained in the pigment layer.
  • the pigment selection according to the invention achieves a number of surprising advantages.
  • the extrusion coating was able to increase without Liability problems or increasing the level of pits too at high speeds of up to 600 m / min 200 to 250 are currently common m / min. At the same time there was a saving in polyolefin achieved from 15 to 30%.
  • the pigment can be selected from the groups of metal oxides, silicates, carbonates, sulfides and sulfates.
  • Kaolins, talc, calcium carbonate and / or barium sulfate are particularly suitable. Calcium carbonate with ad 50% value of approximately 0.7 ⁇ m, for example, has proven to be particularly advantageous.
  • a pigment mixture of calcium carbonate and kaolin (clay) is used.
  • the mass ratio calcium carbonate / kaolin is preferably 30:70 to 70:30. Surprisingly, it was found that, despite the high proportion of the kaolin which tends to yellow, only an insignificant negative effect on the whiteness of the support was observed.
  • the surface of the calcium carbonate in the pigment layer can be modified with a platelet-shaped inorganic substance.
  • the mass ratio pigment / binder in the Pigment layer is 30:70 to 90:10, in particular 85:15.
  • the pigment-containing layer between the base paper and resin can be applied to the base paper as a single layer or in multiple layers.
  • the coating composition can be applied with all customary application units, the amount being chosen so that after drying the application weight per layer is at most 20 g / m 2 , in particular 8 to 17 g / m 2 .
  • the base paper is provided with an additional pigment-containing preliminary layer before it is coated with the pigment layer according to the invention.
  • All common white pigments such as precipitated calcium carbonate, titanium dioxide, kaolin, talc or barium sulfate with a particle size of 0.1 to 10 ⁇ m, in particular 0.1 to 2 ⁇ m, are suitable as the pigment.
  • the application weight of the preliminary layer must not exceed about 20 g / m 2 .
  • the pigment layer according to the invention is preferably applied only after the preliminary layer has dried.
  • the base paper can Pigments and fillers such as kaolin, calcium carbonate or Titanium dioxide and other auxiliary substances such as defoamers, contain optical brighteners and dyes.
  • the base paper can be produced on a Fourdrinier or cylinder paper machine.
  • the basis weight of the base paper can be 50 to 250 g / m 2 , in particular 80 to 170 g / m 2 .
  • a less qualitatively high-quality paper can also be used for the production of the layer support according to the invention, for the production of which, for example, recycled cellulose fibers were used.
  • the base paper can be used in uncompressed or compacted form (smoothed). Uncompressed base papers with a density of less than 0.9 g / cm 3 are particularly suitable in terms of saving material costs
  • the surface of the pigment layer according to the invention is coated with a synthetic resin, for example polyolefin such as polyethylene, polypropylene or polybutene, and with copolymers of two or more olefins by extrusion.
  • a synthetic resin for example polyolefin such as polyethylene, polypropylene or polybutene, and with copolymers of two or more olefins by extrusion.
  • Low-density polyethylene types (LDPE), high-density polyethylene types (HDPE), ethylene / ⁇ -olefin copolymers (LLDPE) and mixtures thereof are particularly suitable.
  • the polymer layer can contain white pigments such as titanium dioxide and other auxiliaries such as optical brighteners, dyes or dispersing agents.
  • the application weight of the polymer layer is 5 to 30 g / m 2 , in particular 10 to 25 g / m 2 . It was found that a comparable pit level is achieved even with a reduction in the
  • the back of the carrier material can also further functional layers such as antistatic or anticurl layers exhibit.
  • the layer support according to the invention can be used as a support for photographic emulsions, ink jet recording layers and for recording layers for so-called thermal Dye transfer process (D2T2) can be used.
  • D2T2 thermal Dye transfer process
  • a photographic standard base paper with a basis weight of 162 g / m 2 was used , which was made from a pulp suspension containing 100% by weight of hardwood sulfate pulp as well as 0.5% by weight of alkyl ketene dimer and 0.7% by weight of polyamide-polyamine-epichlorohydrin resin and was surface-sized with oxidized starch.
  • the base paper was used in an uncompressed form, ie not smoothed, and had a density of 0.84 g / cm 3 .
  • Example 1 The base paper used in Example 1 was in-line with Using a film press with the coating according to Example 1 coated and dried.
  • the base paper used in Example 1 was in-line with Using a film press with the coating according to Example 1 coated and dried.
  • Application weight was 10 g / m 2 .
  • the compositions of the pigment layers produced are shown in Table 2.
  • component 11 12 13 14 15 16 17 18 CaCO 3 (d 50% 0.7 ⁇ m) 30 70 100 - - 30 50 - Modified CaCO 3 - - - - - - - 30 Kaolin 1 70 30 100 - - - 70 Kaolin 2 - - - - 70 - - talc - - - - 100 - 50 - Styrene / butadiene latex 8th 8th 8th 8th 8th 8th 8th 8th 8th 8th 8th Strength 6 6 6 6 6 6 6 6 6 6 6 6 calcium stearate 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 Application weight [g / m 2 ] 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
  • Example 1 The base paper used in Example 1 was first coated "in-line" with the aid of a film press with a coating solution containing 30% by weight of a conventional calcium carbonate. The application weight was 12 g / m 2 . After drying, a pigment layer according to Example 1 (Tab. 1) was applied in the next step with an application weight of 10 g / m 2 .
  • the base papers coated according to Examples 1 to 19 were mixed with a mixture of 72% by weight of a low density polyethylene (LDPE, 0.923 g / cm 3 ), 15% by weight of a titanium dioxide masterbatch (50% by weight LDPE and 50% by weight). % TiO 2 ) and 13% by weight of other additives such as optical brighteners, calcium stearate and blue pigment with different application weights (28 g / m 2 , 23 g / m 2 , 18 g / m 2 and 13 g / m 2 ). The coating was carried out at extrusion speeds of 250 m / min and 350 m / min.
  • LDPE low density polyethylene
  • titanium dioxide masterbatch 50% by weight
  • % TiO 2 % TiO 2
  • other additives such as optical brighteners, calcium stearate and blue pigment with different application weights (28 g / m 2 , 23 g / m 2 , 18 g / m 2 and 13
  • the CaCO 3 coated paper of Example 4 was coated with an ink receiving layer of the following composition: Al 2 O 3 (average particle size 1.2 ⁇ m) 25% by weight Silica (average particle size 6.5 ⁇ m) 40% by weight Polyvinyl alcohol (fully saponified) 21% by weight quaternary polyammonium salt 14% by weight
  • the coating weight of the recording layer was 20 g / m 2 .
  • This recording material was tested for its Cockle index. The results are shown below.
  • the surface-sized base paper from Examples 1 to 10 was on the front with a polyethylene blend according to Examples 1 to 19 at one Extrusion speeds of 200 m / min and 250 m / min coated.
  • a base paper according to Example 1 of EP 0 952 483 A1 with a mass sizing with starch was coated with a solution of clay and polyacrylic acid.
  • the amount of clay in the layer was 1.9 g / m 2 .
  • the pigment-containing layer was then coated with a mixture of TiO2 and LDPE at an application weight of 29 g / m 2 and an extrusion speed of 300 m / min.
  • the back of the base paper was coated with a clear polyethylene.
  • the base paper from example 4 without pigment coating was used.
  • the ink-receiving layer of Example 20 was applied to the base paper at a coating weight of 20 g / m 2 .
  • the surface of the polyolefin coated paper becomes magnified with a microscope and with a CCD camera sampled.
  • Using an image processing program created a profile of the pit level from 30 measuring points. The results are shown in Table 3.
  • the inventive Samples have a smaller number of pits than the sample of comparative example V1.
  • the pits level of the examples 1 to 10 is comparable to that of V2.
  • the pits level the samples of Examples 11 to 19 only fall slightly compared to that of Examples 1 to 10.
  • the roughness was on papers before Extrusion coating with a UBM measuring device according to DIN 4768 with a cut-off setting of 0.8 mm carried out.
  • the samples according to the invention clearly show better roughness values than the samples from V1 and V2, whereby the sample of V1 drops significantly compared to the Sample of V2.
  • the L, a, b values were determined using the Elrepho 2000 colorimeter in single sheet measurements (D65, 10 °, UVI) carried out.
  • the measurements were made right after the extrusion coating with a tensile strength tester from the company Lorentzen & Wettre on paper samples with a width of 10 mm with a trigger angle of 180 ° and one Peeling speed of 50 mm / min carried out.
  • the Measured values are given in N / 15mm and in Table 3 compiled.
  • the samples according to the invention clearly show one improved adhesion of the resin to the pigment layer both compared to the sample of V1 and V2.
  • the stiffness values were compared with the Flexural strength tester from Lorentzen & Wettre according to the standard SCAN-P 29.69 determined. The values are given in mN and reflect the longitudinal stiffness.
  • the cockle behavior of the samples was carried out visually according to a process developed at the Technical University of Darmstadt.
  • the paper to be tested was placed on a flat surface and illuminated under obliquely incident light.
  • a cockle index of less than 10 means no cockle
  • 10 to 16 means low to moderate cockle
  • 16 to 20 means strong cockle
  • more than 20 means very strong cockle.
  • the sample according to the invention shows an excellent Cockle index (10.7) compared to the comparative examples V3 (24.3) and 4 (20.7).

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Paper (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Ink Jet (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Reinforced Plastic Materials (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Claims (9)

  1. Base revêtue sur au moins une face d'une résine synthétique, comportant un papier brut muni au moins sur le recto, d'une couche de pigment, caractérisée en ce que la couche de pigment contient au moins 5% en poids, sur base du poids du pigment total dans la couche de pigment, d'un pigment avec une distribution étroite de la granulométrie, où au moins 70% en poids de ces particules de pigment présentent une taille inférieure à 1 µm et au moins 40% de ces particules présentent une granulométrie allant de 0,35 à 0,8 µm, dans laquelle la couche de résine est appliquée au moins sur la couche de pigment.
  2. Base suivant la revendication 1, caractérisée en ce que le pigment est un carbonate de calcium.
  3. Base suivant la revendication 1 ou 2, caractérisée en ce que la couche contient un mélange de pigments, qui contient au moins 30% en poids de kaolin.
  4. Base suivant l'une quelconque des revendications 1 à 3, caractérisée en ce que le poids appliqué de la couche s'élève à 20 g/m2 au maximum.
  5. Base suivant l'une quelconque des revendications 1 à 4, caractérisée en ce que le papier brut est un papier faiblement comprimé avec une densité inférieure à 1 g/cm2.
  6. Base suivant l'une quelconque des revendications 1 à 5, caractérisée en ce que la couche de pigments contient un carbonate de calcium structuré.
  7. Procédé de préparation d'une base revêtue sur au moins une face d'une résine synthétique, qui présente muni au moins sur le recto, une couche de pigment, caractérisé en ce que l'on applique sur le recto d'un papier brut, au moins une couche contenant un pigment, où la couche de pigment contient au moins 5% en poids, sur base du poids du pigment total dans la couche de pigment, d'un pigment avec une distribution étroite de la granulométrie, où au moins 70% en poids de ces particules de pigment présentent une taille inférieure à 1 µm et au moins 40% de ces particules présentent une granulométrie allant de 0,35 à 0,8 µm, et où une couche de résine est appliquée au moins sur la couche de pigment par extrusion à une vitesse de jusqu'à 600 m/minute.
  8. Procédé suivant la revendication 7, caractérisé en ce que l'on extrude la résine synthétique à une vitesse de 350 à 600 m/minute sur la couche de pigment du papier brut.
  9. Procédé suivant l'une quelconque des revendications 7 ou 8, caractérisé en ce que l'on dépose le revêtement du papier brut en deux étape, de sorte que l'on applique d'abord une couche préalable contenant un pigment avec un poids appliqué de jusqu'à 20 g/m2 sur le papier brut et ensuite, le revêtement contenant un pigment avec une distribution étroite de la granulométrie, pour lequel 50% des particules de pigment présentent un diamètre de 0,7 µm.
EP01103793A 2000-02-18 2001-02-16 Support pour couches d'enregistrement Revoked EP1126081B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10007484 2000-02-18
DE10007484A DE10007484C2 (de) 2000-02-18 2000-02-18 Schichtträger für Aufzeichnungsmaterialien

Publications (3)

Publication Number Publication Date
EP1126081A2 EP1126081A2 (fr) 2001-08-22
EP1126081A3 EP1126081A3 (fr) 2003-04-16
EP1126081B1 true EP1126081B1 (fr) 2004-10-13

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EP01103793A Revoked EP1126081B1 (fr) 2000-02-18 2001-02-16 Support pour couches d'enregistrement

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US (1) US7014893B2 (fr)
EP (1) EP1126081B1 (fr)
CN (1) CN1192902C (fr)
AT (1) ATE279578T1 (fr)
DE (2) DE10007484C2 (fr)
DK (1) DK1126081T3 (fr)
ES (1) ES2230188T3 (fr)
PT (1) PT1126081E (fr)

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WO2011026070A1 (fr) * 2009-08-31 2011-03-03 Newpage Corporation Support d'enregistrement à jet d'encre
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Also Published As

Publication number Publication date
PT1126081E (pt) 2005-02-28
DK1126081T3 (da) 2005-02-14
US7014893B2 (en) 2006-03-21
CN1192902C (zh) 2005-03-16
ES2230188T3 (es) 2005-05-01
DE10007484C2 (de) 2001-12-13
US20010026869A1 (en) 2001-10-04
ATE279578T1 (de) 2004-10-15
CN1311103A (zh) 2001-09-05
JP2001334750A (ja) 2001-12-04
EP1126081A3 (fr) 2003-04-16
JP3964625B2 (ja) 2007-08-22
DE10007484A1 (de) 2001-09-06
DE50104058D1 (de) 2004-11-18
EP1126081A2 (fr) 2001-08-22

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