EP3303701A1 - Matériau support fibreux pour la fabrication d'un papier brut pour des applications de couchage ou d'un préimprégné, poreux, et procédé pour sa fabrication - Google Patents

Matériau support fibreux pour la fabrication d'un papier brut pour des applications de couchage ou d'un préimprégné, poreux, et procédé pour sa fabrication

Info

Publication number
EP3303701A1
EP3303701A1 EP16730730.5A EP16730730A EP3303701A1 EP 3303701 A1 EP3303701 A1 EP 3303701A1 EP 16730730 A EP16730730 A EP 16730730A EP 3303701 A1 EP3303701 A1 EP 3303701A1
Authority
EP
European Patent Office
Prior art keywords
nfc
cellulose
paper
carrier material
fibrous carrier
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
EP16730730.5A
Other languages
German (de)
English (en)
Other versions
EP3303701B1 (fr
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
Original Assignee
Factum Consult GmbH
Schattdecor AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
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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/fr
Application granted granted Critical
Publication of EP3303701B1 publication Critical patent/EP3303701B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 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. Further processing is essentially subdivided into the processes of impregnation, varnishing, 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. However, 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.
  • MDF medium-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 TiO 2
  • TiO 2 titanium dioxide
  • TiO 2 titanium dioxide
  • TiO 2 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 approximately achieved.
  • 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.
  • binders, fillers or dispersants are used, whereby an improvement of the light scattering efficiency is achieved [2].
  • 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. Presentation of the invention
  • 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 ter 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.
  • SSA specific surface area
  • the NFC fibers have a diameter of 10 to 100 nm, on average 50 nm and a length of at least a few micrometers, and the aspect ratio may also be 1 ⁇ 00 or more.
  • the NFC content is 5 to 10 wt .-%.
  • the coating base paper produced according to the invention achieves a further very good resin impregnation, improved topography and printability.
  • EP 1936032 A1 describes a method for producing multilayer paper products, in particular low-density cardboard such as beverage cartons.
  • the main objective is to lower the grammage or basis weight while maintaining the strength properties.
  • Another very significant advantage of the lower pigment content with a given opacity lies in a further improvement of the structural integrity, in particular the tear strength of the fibrous carrier structure, ie the coating raw paper. This applies in all directions within the support structure and both in the dry and in the wet state.
  • a further, surprising advantage of the fibrous carrier material according to the invention when used as a coating base paper results from an improvement in the surface topography, which leads to better printability and ink acceptance with associated savings for the commonly used printing inks.
  • Cellulose nanofibers (hereinafter abbreviated to "NFC”) have been extensively studied and described in the literature over the past 20 years. Also in the field of general papermaking such nanofibers have been suggested as a possible "wet end” additive to improve certain properties of the paper. However, it is also known that the addition of significant amounts of NFC generally results in a loss of opacity [3], which is highly undesirable, particularly for coating papers.
  • 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
  • cellulose nano- or microfibrils are commonly used.
  • cellulose nanofibers are long and flexible.
  • the resulting NFC usually contains crystalline and amorphous domains and has 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, binders of natural origin 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).
  • a method for producing the carrier material according to the invention comprises the following steps:
  • the cellulose-containing material contains a proportion of 1 to 20 wt .-% of NFC having a specific surface area (SSA) of at least 125 m 2 / g.
  • SSA specific surface area
  • 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 raw paper.
  • Such methods are known in principle.
  • the process will be modified such that the cellulose-containing material is added either directly before the formation of an aqueous suspension or subsequently in the proportion of 1 to 20% by weight of NFC. 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 for a given pigment content or by a lower pigment requirement for a given opacity and at the same time described by commercially available methods such as in WO 2013/109441 A1 can be processed further.
  • 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, 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 painted.
  • 1 shows the specific surface area SSA in m 2 / g of NFC-containing cellulose as a function of the weight fraction of NFC; and 2 shows the light reflection (mean in the band 360 to 740 nm) on a black background as a function of the Ti0 2 content in% by weight, for pressings with papers without NFC (triangles) and with papers with 5% by weight NFC (squares).
  • 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 manufacture.
  • the NFC from softwood fibers (ECF, Stendal, D) was produced by the method 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 onto a black background with aqueous melamine resin-impregnated overlay paper to give a high-gloss composite (60 bar, 2 min at 150 ° C., re-cooling: 5 min, to approx. 45 ° -50 ° C.).
  • the average light reflection of these compressions was determined by means of a spectrophotometer (Konika Minolta, CM-2500D) between 360 and 740 nm.
  • 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.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

L'invention concerne un matériau support fibreux pour la fabrication d'un papier brut pour des applications de couchage ou d'un préimprégné, poreux, comprenant une structure plane imprégnable en fibres de cellulose, qui contient au moins une espèce de pigment et éventuellement d'autres additifs usuels pour le papier. Les fibres de cellulose contiennent une proportion de 1 à 20 % en poids de cellulose en nanofibrilles (NFC). Un procédé pour la fabrication du matériau support fibreux comprend les étapes consistant à : – utiliser une suspension aqueuse qui contient un matériau contenant de la cellulose ainsi que qu'une charge de ladite espèce de pigments et des éventuels autres additifs usuels pour le papier, – former une feuille, et - sécher. Le matériau contenant de la cellulose contient une proportion de 1 à 20 % en poids de NFC présentant une surface spécifique (SSA) d'au moins 125 m2/g.
EP16730730.5A 2015-06-03 2016-06-03 Materiau du support fibreux pour la production d'un papier de base de revetement poreux ou préimprégné, et procédé pour sa production Active EP3303701B1 (fr)

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 (fr) 2015-06-03 2016-06-03 Matériau support fibreux pour la fabrication d'un papier brut pour des applications de couchage ou d'un préimprégné, poreux, et procédé pour sa fabrication

Publications (2)

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

Family

ID=53385506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16730730.5A Active EP3303701B1 (fr) 2015-06-03 2016-06-03 Materiau du support fibreux pour la production d'un papier de base de revetement poreux ou préimprégné, et procédé pour sa production

Country Status (10)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4190969A1 (fr) * 2021-12-06 2023-06-07 Kronos International, Inc. Matériau composite comprenant des particules de dioxyde de titane revêtues non séchées et de la nanocellulose

Family Cites Families (8)

* 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
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 (fr) 2006-12-18 2008-06-25 Akzo Nobel N.V. Procédé de production d'un produit en papier
JP2011506794A (ja) * 2007-12-21 2011-03-03 テクノチェル デコール ゲー エム ベー ハー ウント コンパニー コマンディートゲゼルシャフト 化粧コーティング材料用のベース紙
KR101861529B1 (ko) 2010-10-01 2018-06-29 에프피이노베이션스 셀룰로스-강화된 고 무기질 함량 제품 및 그의 제조 방법
CA2861001C (fr) * 2012-01-16 2020-10-20 Franck Andre VANHECKE Dispersions creees a partir de particules inorganiques traitees pour la fabrication de papier de decoration ayant des performances optiques ameliorees
FR2994983B1 (fr) 2012-08-30 2015-03-13 Inst Polytechnique Grenoble Couche d'opacification d'un support papier

Also Published As

Publication number Publication date
ES2722550T3 (es) 2019-08-13
US20180179707A1 (en) 2018-06-28
BR112017026008B1 (pt) 2022-06-28
RU2712598C2 (ru) 2020-01-29
US10767311B2 (en) 2020-09-08
CA2989124A1 (fr) 2016-12-08
PL3303701T3 (pl) 2019-09-30
RU2017146376A3 (fr) 2019-08-21
TR201906053T4 (tr) 2019-05-21
CA2989124C (fr) 2023-04-04
CN108026701A (zh) 2018-05-11
EP3303701B1 (fr) 2019-01-30
RU2017146376A (ru) 2019-07-10
BR112017026008A2 (pt) 2019-02-19
CN108026701B (zh) 2020-10-23
WO2016193485A1 (fr) 2016-12-08

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