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
• • 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
• • 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
  • B41M5/52—Macromolecular coatings
  • B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
  • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
  • B41M5/52—Macromolecular coatings
  • B41M5/5263—Macromolecular coatings characterised by the use of polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • B41M5/5272—Polyesters; Polycarbonates
• • 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
  • B41M5/5263—Macromolecular coatings characterised by the use of polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • B41M5/5281—Polyurethanes or polyureas
• • 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
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, 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
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31725—Of polyamide
• • 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

Definitions

• the invention relates to a recording material for the Ink jet recording process.
• EP 0 650 850 A2 is a recording material known that from a polyolefin coated Base paper and a receiving layer.
• the Material enables the production of images with high Resolution, color density and high gloss, which in the Overall impression with conventional photographic images are comparable.
• a disadvantage of this receiving material are its poor drying properties.
• JP 10-119424 uses a recording paper high gloss suggested a hydrophobic carrier and two layers containing porous silica contains, with the silica of the upper layer has smaller particles than the silica lower layer. Disadvantage of this Recording material is the long drying time.
• glossy ones Claimed recording materials in which the Receiving layer in a cast coating process against a heated mirror smooth Cylinder surface is pressed, which the Recording material has a high-gloss surface receives.
• the object of the present invention is a high-gloss recording material for ink jet recording processes provide with the pictures high color density and a low mottle (Cloudiness) can be generated and a good one Has smudge resistance.
• the task is solved by a recording material, which is a carrier material and at least one polymer layer includes.
• the polymer layer can be directly on the carrier arranged and applied by extrusion.
• the polymer layer contains a polyether group thermoplastic copolymer.
• the recording materials according to the invention by high gloss, which is achieved by treatment in one Calender or increased even further with a chill roll can be. They have a high smudge resistance excellent color density and excellent mottle values on.
• the recording material according to the invention has more well-known compared to the polyolefin layers Ink-jet recording materials an improved Ink absorption capacity.
• the polymer layer can also be a mixture of the Copolymer containing polyether groups and others Polymers.
• the proportion of the other polymer in the Mixture with those to be used according to the invention Copolymers can be about 1 to 50% by weight, preferably up to 40% by weight, based on the mass of the mixture.
• the polymer layer is a polyether amide block copolymer, being a block polymer with a number of Polyether groups from 2 to 20 in each themselves repeating copolymer segment particularly good Delivers results.
• Polyetheramide block copolymers suitable according to the invention are, for example, those of the general formula where PA is a polyamide segment and PE is a polyether segment.
• the individual segments can be connected to one another by carboxyl groups.
• a polyether segment can have 2 to 30, preferably 5 to 20 ether functions.
• thermoplastic polymers such as polyolefins, Ethylene copolymers, polyesters, polycarbonates, polyurethanes and / or extrudable polyvinyl alcohol homopolymers or Polyvinyl alcohol copolymers.
• White pigments color pigments, fillers, in particular absorptive fillers and pigments such as aluminum oxide, Aluminum hydroxide and / or silicas, as well Color fixatives, dispersing aids, plasticizers and optical brighteners may be included.
• Can be used as a white pigment Titanium dioxide can be used.
• Other fillers and Pigments are calcium carbonate, magnesium carbonate, clay, Zinc oxide, aluminum silicate, magnesium silicate, ultramarine, Cobalt blue and soot or mixtures of these.
• the fillers and / or pigments are in an amount from 1 to 40% by weight, in particular 5 to 20% by weight, used. The quantities given relate to the mass the polymer layer.
• the application weight of the extruded polymer layer can be 5 to 50 g / m 2 , preferably 10 to 30 g / m 2 .
• the polymer layer can be applied as a single layer to the front of the carrier material using an extrusion process known to those skilled in the art or in multiple layers using a coextrusion process. However, it can also be applied to the back of the carrier material.
• any base paper can be used as a carrier material be used.
• the paper can be acid or neutral sized his.
• the base paper is said to have high dimensional stability have and should be capable of being in the ink contained liquid without absorbing waves. Papers with high dimensional stability Pulp mixtures of softwood pulps and Eucalyptus pulps are particularly suitable.
• DE 196 02 793 B1 which is a raw paper for an ink jet recording material describes.
• the base paper can other auxiliaries common in the paper industry and Additives such as dyes, optical brighteners or Defoamers included. The use of Reject pulp and recycled waste paper is possible.
• one-sided can also be used as the carrier material or on both sides with polyolefins, in particular with Polyethylene coated paper can be used.
• the Recording material contain another layer.
• This additional layer can function as a Have an ink-receiving layer.
• This layer can be made an aqueous dispersion or solution.
• the additional layer can be a single layer or can also be applied in multiple layers. she can hydrophilic or water-soluble binders, dye-fixing agents, dyes, optical Brighteners, crosslinking agents and inorganic and / or contain organic pigments.
• Polymers for example, can be used as binders become like polyvinyl alcohol and its modifications, Starch and starch derivatives, gelatin, casein, cellulose derivatives, Styrene / butadiene latex, vinyl copolymers, Polyvinyl pyrrolidone and acrylic esters.
• a pigment in order not to increase the gloss of the recording material as a pigment can be a fine particle inorganic pigment with a particle size of 0.01 to 1.0 ⁇ m, in particular 0.02 to 0.5 ⁇ m, in the Ink receiving layer used. Is particularly preferred however, a particle size of 0.1 to 0.3 ⁇ m.
• the pigment can be selected from the group of oxides, Carbonates, silicates or sulfates of alkali metals, Alkaline earth metals such as silica, aluminum oxide, Barium sulfate, calcium carbonate and magnesium silicate. Silicic acid and aluminum oxide are particularly suitable with an average particle size of less than 0.3 ⁇ m. But also a mixture of silica and aluminum oxide an average particle size of less than 0.3 microns can be used.
• the quantitative ratio of pigment to binder can be 20: 1 to 1: 5.
• the application weight of the layer can be 0.5 to 40 g / m 2 , preferably 1 to 30 g / m 2 .
• any of the following can be used to apply the ink-receiving layer (s) any well-known order and Dosing methods are used like roller application, Engraving, nipping and air brushing or Roller doctor dosage. This is particularly preferred Apply with the help of a cascade coating system or a slot caster.
• Suitable backing layers are in the DE 43 08 274 A1 and DE 44 28 941 A1 the disclosure of which is incorporated by reference.
• a paper with a basis weight of 83 g / m 2 and a thickness of 87 ⁇ m was produced with a Fourdrinier paper machine (base paper A).
• the pulp had a freeness of 29 according to Schopper / Riegler.
• About 42% by weight of pine sulfate pulp and about 54% by weight of eucalyptus cellulose were used as cellulose.
• 4% by weight of clay was added as a pigment.
• 0.1% by weight of alkyl ketene dimer, 0.05% by weight of starch and 0.5% by weight of polyamide / polyamine-epichlorohydrin resin as wet strength agent were added.
• a 7.0% by weight polyvinyl alcohol solution was used for surface sizing.
• the paper had a roughness according to Sheffield of 98.
• a paper with a basis weight of 130 g / m 2 and a thickness of 138 ⁇ m was produced with a Yankee paper machine.
• the pulp had a freeness of 27 according to Schopper / Riegler.
• About 24.5% by weight of pine sulfate pulp and about 67% by weight of eucalyptus pulp were used as pulps.
• Clay was added as a pigment in an amount of 8.5% by weight.
• 0.55% by weight of alkyl ketene dimer was added as the sizing agent and 0.6% by weight of polyamide / polyamine-epichlorohydrin resin as the wet strength agent.
• a 1.97% by weight starch solution was used for the surface sizing.
• the paper had a Sheffield roughness of 120.
• the weights of the pulps and pigments refer on the pulp input of these substances
• Weight of the sizing agents and wet strength agents refer to the dry fiber content.
• the front of base paper A was coated with a polyether amide block polymer, PEBAX® MV 6100 SL 01, using a 1 '' extruder.
• a temperature profile of 190 to 280 ° C was set in the extruder.
• the screw speed was set above 70 revolutions / minute (rpm) to improve the adhesion of the layer.
• the laminate obtained was then passed over a high-gloss cooling cylinder.
• the application weight of the extruded polymer layer was 20 g / m 2 .
• the base paper A was treated under the same conditions as in Example 1 with a mixture of 98% by weight polyether amide block polymer, PEBAX® MV 6100 SL 01 and 2% by weight of a 50% TiO 2 masterbatch (50% by weight anatase TiO 2 , 1.5 wt.% Zn stearate, 48.5 wt.% LDPE) coated by extrusion.
• the application weight was 23 g / m 2 .
• the back was coated with a clear polyethylene as in Example 1.
• the base paper A was subjected to the same conditions as in Example 1 with a mixture of 90% by weight polyether amide block polymer, PEBAX® MV 6100 SL 01 and 10% by weight of a 50% TiO 2 masterbatch (as in Example 2) Extrusion coated. The application weight was 23 g / m 2 . The back was coated with a clear polyethylene as in Example 1.
• the front of the base paper B was coated under the same conditions as in Example 1 with a polyether amide block polymer, PEBAX® MV 3000 by extrusion.
• the application weight was 20 g / m 2 .
• the back was coated with a clear polyethylene as in Example 1.
• the base paper B was coated under the same conditions as in Example 1 with a mixture of 98% by weight polyether amide block polymer, PEBAX® MV 3000 and 2% by weight of a 50% TiO 2 masterbatch (as in Example 2) by extrusion .
• the application weight was 23 g / m 2 .
• the back was coated with a clear polyethylene as in Example 1.
• the base paper B was coated under the same conditions as in Example 1 with a mixture of 90% by weight polyether amide block polymer, PEBAX® MV 3000 and 10% by weight of a 50% TiO 2 masterbatch (as in Example 2) by extrusion .
• the application weight was 23 g / m 2 .
• the back was coated with a clear polyethylene as in Example 1.
• An ink-receiving layer composed of an aqueous dispersion was applied to the front of the paper coated according to Example 1.
• This ink receiving layer was composed as follows: Polyvinyl alcohol 6.5% by weight Degree of saponification: 98% Viscosity: 62.72 cP (4% aq. Solution, at 20 ° C) Alumina 93.0% by weight middle Particle size: 130 to 140 nm, specific Surface: 50 to 60 m 2 / g Boric acid 0.5% by weight
• the weight data relate to the dried one Layer.
• Example 7 On the front of the coated according to Example 4 Paper was made up of an ink receiving layer aqueous dispersion applied as in Example 7.
• a base paper coated on both sides with polyethylene served as a comparative example.
• the paper A was coated on the front with a low-density polyethylene (LDPE) with a TiO 2 content of 10% by weight and on the back with a clear LDPE by extrusion.
• the front application was 19 g / m 2
• the back application was 22 g / m 2 .
• the recording papers were made using the Inkjet printer HP 890 at 1440 dpi (dots per inch) printed.
• test print images obtained were checked for color density, Bleed ", smudge resistance and mottle were examined.
• the gloss was on unprinted material with the laboratory Reflectometer RL3 from Dr. Long according to DIN 67530 measured at a measuring angle of 60 °.
• the color density was determined using an X-Rite densitometer 428 on the colors cyan, magenta, yellow and black measured.
• the smudge resistance was achieved by rubbing the printed image checked with a white rag. This exam was made for each color carried out and graded individually. The grade 1 stands for very good smudge resistance (no paint residue recognizable by the rag) and the grade 5 stands for poor smudge resistance (significant paint residues on the Lobes recognizable).
• the unrest or cloudiness (mottle) in one Color area was visually rated 1 to 5 (very good to very bad).
• test results are summarized in Table 1.
• Exam results Color density shine Bleed note Smudge resistance Mottle cyan magent yellow black 1 1.70 1.20 1.34 1.25 56.2 2 2 2 2 1.68 0.71 1.15 1.49 50.0 2 2 2 3rd 2.28 1.26 1.42 1.01 52.6 2 2.5 2 4th 2.25 1.35 1.46 2.45 68.0 2 2 2 5 1.80 1.35 1.16 2.50 51.3 2 2 2.5 6 1.82 1.35 1.21 2.44 49.2 2 2 2 7 2.41 1.38 1.65 2.25 36.2 2 1 1 8th 2.35 1.36 1.76 2.30 36.9 2 1 1.5 V1 1.59 1.45 1.39 1.20 80.3 4th 5 3rd V2 2.39 1.37 1.78 2.35 20.5 3rd 2 1.5

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• 1999
  • 1999-06-29 DE DE19929858A patent/DE19929858C2/de not_active Expired - Fee Related
• 2000
  • 2000-06-22 US US09/599,402 patent/US6726981B1/en not_active Expired - Fee Related
  • 2000-06-23 DE DE50005481T patent/DE50005481D1/de not_active Expired - Lifetime
  • 2000-06-23 PT PT00113345T patent/PT1065070E/pt unknown
  • 2000-06-23 ES ES00113345T patent/ES2215523T3/es not_active Expired - Lifetime
  • 2000-06-23 DK DK00113345T patent/DK1065070T3/da active
  • 2000-06-23 AT AT00113345T patent/ATE260773T1/de not_active IP Right Cessation
  • 2000-06-23 EP EP00113345A patent/EP1065070B1/fr not_active Expired - Lifetime
  • 2000-06-29 JP JP2000196372A patent/JP3920010B2/ja not_active Expired - Fee Related

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