EP3303701B1 - Faseriges trägermaterial zur herstellung eines porösen beschichtungsrohpapiers oder vorimprägnates, und verfahren zu dessen herstellung - Google Patents

Faseriges trägermaterial zur herstellung eines porösen beschichtungsrohpapiers oder vorimprägnates, und verfahren zu dessen herstellung Download PDF

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Publication number
EP3303701B1
EP3303701B1 EP16730730.5A EP16730730A EP3303701B1 EP 3303701 B1 EP3303701 B1 EP 3303701B1 EP 16730730 A EP16730730 A EP 16730730A EP 3303701 B1 EP3303701 B1 EP 3303701B1
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Prior art keywords
nfc
cellulose
paper
fibrous substrate
substrate material
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EP16730730.5A
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German (de)
English (en)
French (fr)
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EP3303701A1 (de
Inventor
Dieter Walesch
Tanja Zimmermann
Gilberto SIQUEIRA
Sebastien Josset
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.)
Factum Consult GmbH
Schattdecor AG
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Factum Consult GmbH
Schattdecor AG
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Application filed by Factum Consult GmbH, Schattdecor AG filed Critical Factum Consult GmbH
Priority to PL16730730T priority Critical patent/PL3303701T3/pl
Publication of EP3303701A1 publication Critical patent/EP3303701A1/de
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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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D21H11/18—Highly hydrated, swollen or fibrillatable fibres
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—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
    • 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

Definitions

  • the present invention relates to a fibrous carrier material according to the preamble of claim 1 and to a method for its production. Furthermore, the invention relates to a coating base paper or prepreg formed from the novel carrier material.
  • the products according to the invention are intended for the production of coating materials for furniture surfaces and furniture foils, but also for walls, floors and ceilings.
  • Coating base papers are produced in all colors / saturations / brightnesses, which can be measured from the entire color spectrum.
  • Coating base papers sometimes also referred to as decorative base papers, are highly technical special papers which are printed with aqueous or solvent-based color systems or are printed unprinted and in monochrome. This applies to all conventional printing processes such as gravure printing, offset printing, flexographic printing, screen printing, but also all non-impact printing processes such as digital printing systems. The further processing is essentially subdivided into the processes of impregnation, painting, pressing on wood-based materials or lamination on wood-based materials or other plate-like materials.
  • Wood-based materials are chipboard, fiberboard, medium-density fibreboard (MDF) and high-density fibreboard.
  • plates may also be coated or laminated, which may be made of a variety of materials such as in particular mineral materials, plastics or metals.
  • Coating base papers must be produced in all the colors of the color spectrum that can be perceived by the human eye, including the highest brightness (white) and the highest darkness level (black).
  • organic and inorganic pigments of different particle size are used in different mixing and concentration. Fillers are also used to meet and meet all physical conditions and requirements.
  • titanium dioxide titanium dioxide
  • TiO 2 titanium dioxide
  • titanium dioxide is added to the fibrous paper in a wet end process (see, for example WO 2013/109441 A1 ).
  • Coating base paper as a fibrous substrate is the most economical, flexible and functional solution for displaying designed and styled surfaces for a variety of applications such as furniture for living and sleeping areas, kitchens, offices, bathrooms, floors, interiors for large objects such as airports, hotels, office buildings, buildings of the public interest such as museums, galleries (see for example WO 2013/109441 A1 ).
  • Coating raw paper requires a very high, possibly up to 100% opacity.
  • the covering capacity against the background, ie the color of the carrier material must be ensured without loss of color impression.
  • Crucial for this are the content (amount) and the distribution of pigments and fillers in the paper body. The limit amount is dictated by the requirement for strength of the paper.
  • the limit amount can be increased in a conventional manner by increasing the basis weight of the paper.
  • the basis weight of the paper is high enough, the desired 100% opacity can be approached.
  • the current state of the art places economic limits on the sensible use of pigments and fillers.
  • the most commonly used pigments white (titanium dioxide) and colored (iron oxides), represent a high value and are subject to immense, cyclical price fluctuations. Therefore, maximum yield is very important. This, in turn, means that the pigments / fillers in the paper body must have maximum particle distribution to achieve the best possible opacity and hiding power. Until today it has not been possible to reach this standard. The pigments / fillers are present in the paper body as agglomerates. The light-scattering layers overlap and reduce the opacity effects and form a different color perception.
  • a fibrous carrier material in particular a coating base paper, which is distinguished by high quality, in particular by high opacity, lower need for pigments and good mechanical stability.
  • a further object of the invention is to specify a method for producing the carrier material according to the invention.
  • a coating base paper or a prepreg having improved properties is provided.
  • the fibrous carrier material according to the invention comprises, in a known manner, a two-dimensional structure of cellulose fibers which additionally contains at least one pigment species and optionally further paper-like additives. Furthermore, the cellulose fibers contain a proportion of 1 to 20 wt .-% of nanofibrillated cellulose, which is to be understood here as the percentage of the total weight of all cellulose fibers.
  • nanofibrillated cellulose also abbreviated here as "NFC”
  • NFC comprises cellulose fibers with a diameter of approximately 3 nm to approximately 200 nm and a length of at least 500 nm and an aspect ratio ( Length: diameter) of at least 100 to understand.
  • the NFC has a specific surface area (SSA) of at least 125 m 2 / g.
  • the NFC fibers have a diameter of 10 to 100 nm, an average of 50 nm and a length of at least a few microns, and the aspect ratio may also be 1,000 or more.
  • the NFC content is 5 to 10 wt .-%.
  • the WO 2014/033409 A1 relates to an opacifying layer which is provided as a cover layer for a backing paper.
  • the said layer consists of a mixture of NFC and at least one granular pigment species.
  • Another very significant advantage of the lower pigment content, given a given opacity, is a further improvement in structural integrity, particularly tear strength of the fibrous support structure, i. of the coating base paper. This applies in all directions within the support structure and both in the dry and in the wet state.
  • NFC Cellulose nanofibers
  • NFC is generally obtained by a mechanical comminution process of wood and other vegetable fibers; first descriptions go to Herrick et al. [4] and Turback et al. [5] returned in 1983.
  • MFC microfibrillated cellulose
  • CNF cellulose nanofibers
  • NFC nanofibrillated cellulose
  • NFC nano- or microfibrils
  • It is a semi-crystalline cellulosic material made of cellulose fibers with a high aspect ratio ( ratio of length to diameter), lower degree of polymerization compared with intact plant fibers and correspondingly increased surface area, which is obtained for example by a homogenization or grinding process [6].
  • cellulose nanofibers are long and flexible.
  • the resulting NFC usually contains crystalline and amorphous domains and exhibits a network structure due to strong hydrogen bonds [7, 8, 9].
  • customary paper additives are meant in particular fillers.
  • the pigments and fillers contained in the novel support material are preferably selected from the group of metal oxides, oxides and / or mixed oxides of a semi-metal / semiconductor or mixtures thereof.
  • the pigments / fillers may be selected from, but not limited to, silicon, magnesium, calcium, aluminum, zinc, chromium, iron, copper, tin, lead or mixtures thereof.
  • Preferred pigments / fillers are silicas, aluminas, iron oxides, magnesium silicate, magnesium carbonate, titanium dioxide, tin oxide, aluminum silicate, calcium carbonate, talc, clay, silica, inorganic materials such as diatomite, organics such as e.g. Melamine-formaldehyde resins, urea-formaldehyde resins, acrylates, polyvinyl alcohol, modified polyvinyl alcohol, polyvinyl acrylates, polyacrylates, synthetic binders, natural origin binders such as starch, modified starch, carboxymethyl cellulose or mixtures thereof.
  • a particularly preferred pigment species for forming a white coloration is titanium dioxide (claim 3).
  • Another pigment species used for some applications is the iron oxide (claim 4).
  • NFC with a specific surface area (SSA) of 100 m 2 / g or less gives significantly worse results in terms of measurable surface topography, printability and retention for pigments such as titanium dioxide.
  • SSA specific surface area
  • the NFC content is 5 to 10% by weight.
  • the NFC used for the above process should have a specific surface area (SSA) of at least 150 m 2 / g, in particular of at least 175 m 2 / g, preferably at least 225 m 2 / g (claim 7).
  • SSA specific surface area
  • the process according to the invention uses a papermaking process which is suitable and optimized for the production of coating base paper.
  • Such methods are known in principle.
  • the process will be modified such that the cellulosic material either immediately before the formation of an aqueous suspension or subsequently the said proportion from 1 to 20% by weight of NFC is added. Again, this percentage refers to the total weight of all cellulosic fibers.
  • a porous coating base paper is provided, which is characterized by an increased opacity at a given pigment content or by a lower pigment requirement for a given opacity and at the same time with commercially available methods such as WO 2013/109441 A1 described further processed.
  • a pre-impregnate wherein the inventive carrier material is impregnated with a suitable synthetic resin dispersion.
  • Preimpregnates are prepared in a manner known per se by impregnating a fibrous carrier material with an impregnating resin solution (see, for example, US Pat EP 0648248 B1 ). This impregnation step already takes place in the paper machine. As a result, the pre-impregnates can still be provided with a print motif.
  • the novel prepregs are distinguished by the advantages already mentioned in connection with the coating paper according to the invention.
  • HPL high pressure laminates
  • low pressure laminates This could be used indoors for floors, walls and ceilings and all furniture surfaces. It is understood that depending on the application, the surface layer is still provided with an additional protective layer (overlay) or lacquered.
  • the specific surface area (SSA) in m 2 / g of NFC-containing cellulose increases linearly as a function of the weight fraction of NFC. While it is only around 75 m 2 / g in the case of conventional cellulose without NFC addition in the example shown, it has values of around 225 m 2 / g at 100% NFC values; see more: Josset, S. et al. Energy consumption of the nanofibrillation of bleached pulp. Nordic Pulp & Paper Research Journal 29, 167-175 (2014 ).
  • paper blanks having a constant pulp density of 50 g / m 2 and increasing TiO 2 contents were produced by means of a sheet former (Estanit, Mülheim an der Ruhr, Germany, based on DIN EN ISO 5269-2 - DIN 54358).
  • Bleached wood fiber pulp was ground by a standard method to a Schopper-Riegler value of 35 SR °.
  • a first 1% by weight suspension of this pulp was prepared to prepare standard paper blanks.
  • a second 1 wt% pulp suspension with 5 wt% NFC (based on total pulp amount) was prepared to make modified paper blanks.
  • the NFC from softwood fibers (ECF, Stendal, D) was produced according to the process described in the following reference: Josset, S. et al. Energy consumption of the nanofibrillation of bleached pulp. Nordic Pulp & Paper Research Journal 29, 167-175 (2014 ).
  • the remaining material was pressed on a black background with aqueous melamine resin impregnated overlay paper to a high gloss composite (60 bar, 2 min at 150 ° C, re-cooling: 5 min, to about 45 ° - 50C °).
  • the average light reflection of these compressions was determined by means of a spectrophotometer (Konika Minolta, CM-2500D) between 360 and 740 nm.
  • the addition of 5 wt% NFC causes a significant increase in light reflectance.
  • the light reflection increases from about 49% (without NFC) to about 54% (with NFC).
  • the behavior in the flattening region of the curves at higher TiO 2 contents For example, to achieve a reflection of 54%, conventional paper requires a TiO 2 content of about 22% by weight, which in the case of an addition of 5% by weight NFC to about 17% by weight. lower. This corresponds to over 22% savings in TiO 2 .
  • the ash content was 32.6 wt .-%, which corresponds to an absolute increase of 1.8 wt .-% compared to the reference.
  • the ash content was 38.9 wt .-%, which corresponds to an absolute increase of 8.2 wt .-% compared to the reference.
  • the ash content was 43.5 wt .-%, which corresponds to an absolute increase of 12.7 wt .-% compared to the reference.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Reinforced Plastic Materials (AREA)
  • Laminated Bodies (AREA)
EP16730730.5A 2015-06-03 2016-06-03 Faseriges trägermaterial zur herstellung eines porösen beschichtungsrohpapiers oder vorimprägnates, und verfahren zu dessen herstellung Active EP3303701B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16730730T PL3303701T3 (pl) 2015-06-03 2016-06-03 Włóknisty materiał nośny do wytwarzania porowatego powłokowego papieru podłożowego lub półfabrykatu laminatu zbrojonego, oraz sposób jego wytwarzania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15170612 2015-06-03
PCT/EP2016/062732 WO2016193485A1 (de) 2015-06-03 2016-06-03 Faseriges trägermaterial zur herstellung eines porösen beschichtungsrohpapiers oder vorimprägnates, und verfahren zu dessen herstellung

Publications (2)

Publication Number Publication Date
EP3303701A1 EP3303701A1 (de) 2018-04-11
EP3303701B1 true EP3303701B1 (de) 2019-01-30

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EP16730730.5A Active EP3303701B1 (de) 2015-06-03 2016-06-03 Faseriges trägermaterial zur herstellung eines porösen beschichtungsrohpapiers oder vorimprägnates, und verfahren zu dessen herstellung

Country Status (10)

Country Link
US (1) US10767311B2 (zh)
EP (1) EP3303701B1 (zh)
CN (1) CN108026701B (zh)
BR (1) BR112017026008B1 (zh)
CA (1) CA2989124C (zh)
ES (1) ES2722550T3 (zh)
PL (1) PL3303701T3 (zh)
RU (1) RU2712598C2 (zh)
TR (1) TR201906053T4 (zh)
WO (1) WO2016193485A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4190969A1 (en) * 2021-12-06 2023-06-07 Kronos International, Inc. Composite material comprised of undried, coated titanium dioxide particles and nanocellulose

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952278A (en) 1989-06-02 1990-08-28 The Procter & Gamble Cellulose Company High opacity paper containing expanded fiber and mineral pigment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2692584B1 (fr) 1992-06-22 1994-08-26 Buhl Papierfabrick Gmb Geb Nouvelle composition d'imprégnation pour feuilles décoratives pour la fabrication de panneaux stratifiés.
FI122674B (fi) * 2005-06-23 2012-05-15 M Real Oyj Menetelmä kuituradan valmistamiseksi
EP1936032A1 (en) 2006-12-18 2008-06-25 Akzo Nobel N.V. Method of producing a paper product
US8221895B2 (en) * 2007-12-21 2012-07-17 Technocell Dekor Gmbh & Co. Kg Base paper for decorative coating materials
BR112013007704B1 (pt) 2010-10-01 2020-09-29 Fpinnovations Massa e processo para fabricação de papel, e, papel
ES2568487T3 (es) * 2012-01-16 2016-04-29 E. I. Du Pont De Nemours And Company Dispersiones preparadas a partir de partículas inorgánicas tratadas para fabricar papel decorativo que tiene rendimiento óptico mejorado
FR2994983B1 (fr) * 2012-08-30 2015-03-13 Inst Polytechnique Grenoble Couche d'opacification d'un support papier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952278A (en) 1989-06-02 1990-08-28 The Procter & Gamble Cellulose Company High opacity paper containing expanded fiber and mineral pigment

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
A.F. TURBAK: "Microfibrillated cellulose, a new cellulose product: properties, uses and commercial potential", APPLIED POLYMER SYMPOSIA., JOHN WILEY AND SONS,INC. NEW YORK., US, vol. 37, 1 January 1983 (1983-01-01), US , pages 815 - 827, XP009170845, ISSN: 0570-4898
H. SCHLOSSER: "Nano Disperse Cellulose und Nano Fibrillierte Cellulose - neue Produkte für die Herstellung und Veredelung von Papier und Karton", WOCHENBLATT FUR PAPIERFABRIKATION, vol. 6, 2008, pages 1 - 11, XP055656693
H.P.S. ABDUL KHALIL ET AL.: "Green composites from sustainable cellulose nanofibrils: A review", CARBOHYDRATE POLYMERS, vol. 87, 2012, pages 963 - 979, XP028112374, DOI: 10.1016/j.carbpol.2011.08.078
I. SIRO ET AL.: "Microfibrillated cellulose and new nanocomposite materials: a review", CELLULOSE, vol. 17, 2010, pages 459 - 494, XP055068118, DOI: 10.1007/s10570-010-9405-y
JOSSET, S. ET AL.: "Energy consumption of the nanofibrillation of bleached pulp, wheat straw and recycled newspaper through a grinding process", NORDIC PULP & PAPER RESEARCH JOURNAL, vol. 29, no. 1, 2014, pages 167 - 175, XP055656697
K. ERHARD ET AL.: "Senkung der Kosten gefullter Papiersorten durch die Einlagerung von Faser-Fullstoff-Compounds auf Basis nanoskaliger Cellulosen", PTS-FORSCHUNGSBERICHT IGF 16359, 2013, pages 1 - 44, XP055656665
Z. FANG ET AL.: "Development, application and commercialization of transparent paper", TRANSLATIONAL MATERIALS RESEARCH, 015004, 2014, pages 1 - 18, XP055656683

Also Published As

Publication number Publication date
WO2016193485A1 (de) 2016-12-08
CA2989124A1 (en) 2016-12-08
BR112017026008B1 (pt) 2022-06-28
US20180179707A1 (en) 2018-06-28
US10767311B2 (en) 2020-09-08
RU2017146376A (ru) 2019-07-10
EP3303701A1 (de) 2018-04-11
BR112017026008A2 (pt) 2019-02-19
CN108026701A (zh) 2018-05-11
ES2722550T3 (es) 2019-08-13
RU2712598C2 (ru) 2020-01-29
TR201906053T4 (tr) 2019-05-21
CA2989124C (en) 2023-04-04
PL3303701T3 (pl) 2019-09-30
CN108026701B (zh) 2020-10-23
RU2017146376A3 (zh) 2019-08-21

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