EP1627953A1 - Papier décoratif et l'utilisation de silicate d'aluminium dans la production de papier décoratif - Google Patents

Papier décoratif et l'utilisation de silicate d'aluminium dans la production de papier décoratif Download PDF

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Publication number
EP1627953A1
EP1627953A1 EP05107195A EP05107195A EP1627953A1 EP 1627953 A1 EP1627953 A1 EP 1627953A1 EP 05107195 A EP05107195 A EP 05107195A EP 05107195 A EP05107195 A EP 05107195A EP 1627953 A1 EP1627953 A1 EP 1627953A1
Authority
EP
European Patent Office
Prior art keywords
aluminum silicate
decorative paper
titanium dioxide
calcined aluminum
refractive index
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.)
Granted
Application number
EP05107195A
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German (de)
English (en)
Other versions
EP1627953B1 (fr
Inventor
Reinhard Kräuter
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.)
Bene-Fit GmbH
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Bene-Fit GmbH
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Publication date
Application filed by Bene-Fit GmbH filed Critical Bene-Fit GmbH
Priority to PL05107195T priority Critical patent/PL1627953T3/pl
Publication of EP1627953A1 publication Critical patent/EP1627953A1/fr
Application granted granted Critical
Publication of EP1627953B1 publication Critical patent/EP1627953B1/fr
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Classifications

    • 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
    • D21H27/26—Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the overlay sheet or the top layers of the structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper

Definitions

  • the invention relates to a decor paper, which is formed from pulp fibers, fillers and pigments, wherein the pigments consist of titanium dioxide, according to the preamble of claim 1. Furthermore, the invention relates to a use of aluminum silicate as a filler for the production of decorative paper with pulp fibers, at least the filler and pigments according to the preamble of claim 6.
  • Decorative papers are known as high quality paper types which are often used for bonding wood surfaces such as chipboard.
  • the printing of such decor papers allows the provision of wood panels with particularly decorative surfaces, such as a wood grain or the like printed patterns.
  • melamine resins can be used for this purpose.
  • the decorative papers to date have a high proportion of titanium dioxide of about 10 to 40% by mass in addition to pulp fibers and other additives.
  • the high opacity of the decorative paper is due to the high optical refractive index of titanium dioxide (TiO 2 ) of 2.6.
  • TiO 2 titanium dioxide
  • Such a refractive index is different from the refractive index of 1.5-1.6 conventional fillers are relatively high, which is why titanium dioxide is called pigment.
  • Such a high refractive index of the titanium dioxide is advantageously distinguished, in particular, at a boundary layer to the synthetic resin layer in the form of an impregnating resin layer with a refractive index of approximately 1.5-1.6, since a refractive index difference of 1.1-1.1 exists in this boundary layer. which leads to a high degree of strong light refraction and light reflections of the incident light. Accordingly, the refractive index difference between the refractive indices of the actual decorative paper and the resin layer applied thereto is a critical measure of the hiding power of the pigments used in the decorative paper. In this way, it can be avoided, for example, that a surface of a chipboard can undesirably shine through the decorative paper and its printing adhered to it.
  • Titanium dioxide is usually present in decorative papers as a very fine pigment with high density and a grain size of 0.1 - 0.5 microns before. Due to this small particle size, titanium dioxide has a poor retention behavior during papermaking, which is responsible for the tendency of the grains to precipitate out of an aqueous pulp during papermaking in the course of an absolutely essential dewatering process, ie to pass into a filtrate phase, and not in the paper to be formed to remain stands. Thus, not all of the titanium dioxide content remains during the dewatering process within the forming paper but is excreted in parts.
  • Such titania precipitating during the filtrate phase is undesirable, particularly because of the high cost associated with the acquisition of titanium dioxide. These costs are generally two to four times higher than comparable comparable conventional fillers. This has an effect on the manufacturing costs of the decorative paper.
  • a further object of the invention is the use of aluminum silicate as filler for Production of decorative paper with good retention behavior and low production costs to provide.
  • the core idea of the invention is that in a decor paper, which is formed from pulp fibers, fillers, additives and pigments, wherein the pigments consist of titanium dioxide, is used as fillers calcined aluminum silicate, which compared to the titanium dioxide, a mass ratio of a range of 1: 1 to 1: 50, preferably 1: 10 to 1: 30 and more preferably 1: 24.
  • the calcined aluminum silicate which is used in place of a 4-pct portion of the titanium dioxide, has grains with a large grain size of 0.5-50 ⁇ m, and thus is relatively coarse-grained with respect to the titanium dioxide. This has an advantageous effect on the retention behavior of a paper pulp which is used to produce the decor paper, since, due to the large grain size, fewer filler and pigment grains change into the aqueous filtrate phase.
  • the optical refractive index of the resin layer to the refractive index of the air trapped in the calcined aluminosilicate is in a ratio of 1.3: 1.0 to 1.7: 1.0, preferably 1.5: 1.0.
  • a refractive index difference of 0.5-0.6 is obtained at the interface between the resin layer and the calcined aluminum silicate.
  • conventional fillers such as synthetic silicate, precipitated calcium carbonate, etc. usually have a refractive index of about 1.5 to 1.6, resulting in a maximum refractive index difference of 0 to 0.1.
  • a grain size ratio of grains of the titanium dioxide and grains of the calcined aluminum silicate is in a range of 0.1: 0.5 to 0.5: 50.
  • a use of aluminum silicate as a filler for producing decorative paper with cellulose fibers, additives, at least the filler and the titanium dioxide present as pigments is advantageously characterized in that the mass ratio of calcined aluminum silicate to titanium dioxide in the range of 1: 1 to 1:50, preferably in the range of 1:10 to 1:30, and more preferably 1:24.
  • Such an adjustment of the mass ratio in combination with the selection of the grains of the calcined aluminum silicate with grain sizes in the range of 0.1 .mu.m to 0.5 .mu.m not only results in a low precipitation of fillers or pigments during the filtrate phase in the production of decorative paper but also a cost reduction during decorative paper production due to the lower required proportion of titanium dioxide. Due to the high degree of whiteness of 75-95 of the calcined aluminum silicate, high whiteness decor paper is provided.
  • the particle sizes of 0.5-50 ⁇ m used for the calcined aluminum silicate are greater not only compared to the grain sizes of the grains of the titanium dioxide used hitherto but also to the grains of the other conventional fillers used hitherto. This demonstrably leads to a better retention behavior during the manufacturing process.
  • the trapped air chambers of the calcined aluminum silicate are not destroyed during the decorative paper making process.
  • the decorative paper 3 according to the invention contains inter alia as a filler calcined aluminum silicate with a plurality of enclosed micro-air chambers 4, which additionally have a kind of lens effect with respect to light rays due to their special shape.
  • the decorative paper 3 is covered with a synthetic resin layer 5, primarily of melamine resin, on the upper side.
  • a synthetic resin layer 5 primarily of melamine resin
  • the decorative paper is covered, for example, by a wooden plate, not shown here, on which the decorative paper is glued.
  • Fig. 1 The illustration shown in Fig. 1 can be clearly seen that the incident light rays 2 at an interface between the resin layer 5 having a refractive index of 1.5 and the decorative paper 3 containing the calcined aluminum silicate with the micro air chambers 4 having a refractive index of 1.0 experience both a total reflection 2a and a refraction 2b. In addition, reflections and refractions occur within the micro-air chambers.
  • measured values for the degree of whiteness achieved and the brightness value L achieved are shown in two diagrams in a comparison representation between a conventional decorative paper and the decorative paper according to the invention.
  • the diagram 10 is the achieved whiteness of a conventional decorative paper 11, which contains 100% titanium dioxide as pigment and filler, and a decorative paper according to the invention. In both cases it is already compressed paper.
  • the decorative paper 12 produced according to the invention in which 4% by mass of the titanium dioxide according to the conventional decorative paper 11 are replaced by the calcined aluminum silicate, after application to wood and subsequent pressing with melamine resin slightly lower whiteness than conventional decor paper which uses 100% titanium dioxide as the pigment and filler.
  • the brightness value of the chart 13 is higher than that of the conventional decorative paper 14 having an analogous resin treatment.
  • the conventional decor paper 11, 14 is characterized in that TiO 2 is used exclusively as an inorganic component in the pulp consisting of short fiber pulps, long fiber pulps, and TiO 2 .
  • the decorative paper according to the invention has a paper pulp composition of short fiber pulps, long fiber pulps, TiO 2 , calcined aluminum silicate, 4% Nadawin and NaHO 3 .
  • the ash content is 30 -31% by mass.
  • the calcined aluminum silicate comprises 4% by mass of the admixed inorganic components. 96% by mass of the added inorganic components are covered by the titanium dioxide.
  • the calcined aluminum silicate used has the following data: Whiteness (ISO): 75 - 95 Grain size range (Sedigraph): 0.5 - 50 ⁇ m Density: 1.0-2.5 g / ml Chem. Main Ingredients: Al 2 O 3 and SiO 2 Loss on ignition: 0.15 Ma-% humidity 0.20% oil absorption 65 ml / 100 g bulk weight 310 g / liter Sieve residue wet> 45 ⁇ 0.045% PH value 6.0 BET 4,9m 27g L * 97.02 a * 0.01 b * 2.44 SiO 2 55.3% Al 2 O 3 42.2%
  • the decor paper sheet formation is carried out with a Laborblattsentner conventional type based on DIN 54358. Lamination with such decor papers takes place on furniture wood panels. For comparison purposes, a decor paper plate of conventional type and the type according to the invention is laminated in each case.
  • Both the degree of whiteness and the brightness value in this case should be regarded as a relative measure of the opacity of the paper. For if the decorative paper covered poorly, then the dark-colored wood panel would shine through the decor paper and cause a low degree of whiteness. However, since in the decorative paper of the present invention, the whiteness is still very high as compared with the conventional decorative paper, and the brightness value can be even increased, the decorative paper of the invention has a high degree of coverage.
  • FIG. 3 is a graph showing the opacity values of various resin systems in a comparative illustration.
  • This is a model system for resin-bonded systems, ie fillers are embedded in a resin matrix of acrylic paint.
  • the synthetic resin used is an acrylic varnish with a refractive index of 1.4.
  • Components of the synthetic resin systems are the acrylic paint, one pigment or one extender with 10% by mass and a coating weight of about 50 g / m 2 .
  • the graph 20 are opacity values for the resin systems excluding titanium dioxide as the inorganic component (Reference 21), excluding calcined aluminum silicate as the inorganic component (Reference 22), calcined kaolin exclusively according to Example 1 and Example 2 (Reference Numerals 23 and 24) and exclusively synthetic extender according to a first and second example (reference numerals 25 and 26) include shown.
  • the opacity of the calcined aluminum silicate according to the invention according to reference number 22 has a significantly higher opacity than the other conventional fillers. Only alone compared to the resin matrix with 100% titanium dioxide as filler or pigments, lower opacity values are achieved.

Landscapes

  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Glass Compositions (AREA)
EP05107195A 2004-08-05 2005-08-04 Papier décoratif et l'utilisation de silicate d'aluminium dans la production de papier décoratif Active EP1627953B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05107195T PL1627953T3 (pl) 2004-08-05 2005-08-04 Papier dekoracyjny i zastosowanie krzemianu glinu do wytwarzania papieru dekoracyjnego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004038197A DE102004038197B4 (de) 2004-08-05 2004-08-05 Dekorpapier und Verwendung von Aluminiumsilikat zur Herstellung von Dekorpapier

Publications (2)

Publication Number Publication Date
EP1627953A1 true EP1627953A1 (fr) 2006-02-22
EP1627953B1 EP1627953B1 (fr) 2007-10-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05107195A Active EP1627953B1 (fr) 2004-08-05 2005-08-04 Papier décoratif et l'utilisation de silicate d'aluminium dans la production de papier décoratif

Country Status (4)

Country Link
EP (1) EP1627953B1 (fr)
AT (1) ATE375415T1 (fr)
DE (2) DE102004038197B4 (fr)
PL (1) PL1627953T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1662045A1 (fr) * 2004-11-25 2006-05-31 bene_fit GmbH Charge pour la fabrication de papier et son utilisation dans ce cadre
EP4202117A1 (fr) * 2021-12-23 2023-06-28 Schoeller Technocell GmbH & Co. KG Papier décoratif à deux couches destiné à l'amélioration de la qualité d'impression

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5073986A (fr) * 1973-10-31 1975-06-18
JPS50142686A (fr) * 1974-05-08 1975-11-17
WO2000044576A1 (fr) * 1999-01-26 2000-08-03 Kronospan Technical Company Ltd. Procede de realisation de recouvrements stratifie, et recouvrement stratifie
WO2002066265A1 (fr) * 2001-02-20 2002-08-29 Kronospan Technical Company Ltd. Papier decoratif et procede pour impregner un papier decoratif
DE10332650A1 (de) * 2003-07-18 2005-02-10 Kronos International, Inc. Verfahren zur Oberflächenbehandlung eines Titandioxid-Pigments

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL235038A (fr) * 1958-01-15 1900-01-01
US3730830A (en) * 1971-11-24 1973-05-01 Eastman Kodak Co Process for making paper
DE2343018A1 (de) * 1973-08-25 1975-03-06 Thomas Howard Ferrigno Pigmentmassen
DE68907051T2 (de) * 1988-05-23 1993-09-16 Georgia Kaolin Co Hochleistungs-papiersfuellstoff und verfahren zu dessen herstellung.
US5958185A (en) * 1995-11-07 1999-09-28 Vinson; Kenneth Douglas Soft filled tissue paper with biased surface properties

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5073986A (fr) * 1973-10-31 1975-06-18
JPS50142686A (fr) * 1974-05-08 1975-11-17
WO2000044576A1 (fr) * 1999-01-26 2000-08-03 Kronospan Technical Company Ltd. Procede de realisation de recouvrements stratifie, et recouvrement stratifie
WO2002066265A1 (fr) * 2001-02-20 2002-08-29 Kronospan Technical Company Ltd. Papier decoratif et procede pour impregner un papier decoratif
DE10332650A1 (de) * 2003-07-18 2005-02-10 Kronos International, Inc. Verfahren zur Oberflächenbehandlung eines Titandioxid-Pigments

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 197552, Derwent World Patents Index; Class A17, AN 1975-85395W, XP002360700 *
DATABASE WPI Section Ch Week 197807, Derwent World Patents Index; Class E32, AN 1978-12984A, XP002360699 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1662045A1 (fr) * 2004-11-25 2006-05-31 bene_fit GmbH Charge pour la fabrication de papier et son utilisation dans ce cadre
EP4202117A1 (fr) * 2021-12-23 2023-06-28 Schoeller Technocell GmbH & Co. KG Papier décoratif à deux couches destiné à l'amélioration de la qualité d'impression

Also Published As

Publication number Publication date
ATE375415T1 (de) 2007-10-15
DE102004038197B4 (de) 2010-06-17
EP1627953B1 (fr) 2007-10-10
DE102004038197A1 (de) 2006-02-23
PL1627953T3 (pl) 2008-05-30
DE502005001652D1 (de) 2007-11-22

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