EP3303701A1 - 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 herstellungInfo
- 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
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 26
- 238000000576 coating method Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- 239000000758 substrate Substances 0.000 title abstract description 5
- 239000000049 pigment Substances 0.000 claims abstract description 32
- 239000001913 cellulose Substances 0.000 claims abstract description 27
- 229920002678 cellulose Polymers 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 22
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 8
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 3
- 239000012876 carrier material Substances 0.000 claims description 21
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 9
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000000123 paper Substances 0.000 description 49
- 239000000945 filler Substances 0.000 description 10
- 230000008901 benefit Effects 0.000 description 7
- 229910010413 TiO 2 Inorganic materials 0.000 description 6
- 238000007639 printing Methods 0.000 description 5
- 241000894007 species Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002121 nanofiber Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 235000013980 iron oxide Nutrition 0.000 description 3
- 239000011133 lead Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000012876 topography Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000000976 ink Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 230000004456 color vision Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- -1 diatomite Chemical class 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 208000001848 dysentery Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 210000001724 microfibril Anatomy 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
Description
Claims
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 true EP3303701A1 (de) | 2018-04-11 |
EP3303701B1 EP3303701B1 (de) | 2019-01-30 |
Family
ID=53385506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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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 (de) |
EP (1) | EP3303701B1 (de) |
CN (1) | CN108026701B (de) |
BR (1) | BR112017026008B1 (de) |
CA (1) | CA2989124C (de) |
ES (1) | ES2722550T3 (de) |
PL (1) | PL3303701T3 (de) |
RU (1) | RU2712598C2 (de) |
TR (1) | TR201906053T4 (de) |
WO (1) | WO2016193485A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP4190969A1 (de) * | 2021-12-06 | 2023-06-07 | Kronos International, Inc. | Verbundmaterial aus ungetrockneten, beschichteten titandioxidpartikeln und nanocellulose |
Family Cites Families (8)
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 (de) | 2006-12-18 | 2008-06-25 | Akzo Nobel N.V. | Verfahren zur Herstellung eines Papierprodukts |
ES2396763T5 (es) * | 2007-12-21 | 2016-04-01 | Schoeller Technocell Gmbh & Co. Kg | Papel de base para materiales de revestimiento decorativos |
KR101861529B1 (ko) | 2010-10-01 | 2018-06-29 | 에프피이노베이션스 | 셀룰로스-강화된 고 무기질 함량 제품 및 그의 제조 방법 |
US9023179B2 (en) * | 2012-01-16 | 2015-05-05 | E I Du Pont De Nemours And Company | Dispersions made from treated inorganic particles for making decor paper having improved optical performance |
FR2994983B1 (fr) | 2012-08-30 | 2015-03-13 | Inst Polytechnique Grenoble | Couche d'opacification d'un support papier |
-
2016
- 2016-06-03 CN CN201680041820.2A patent/CN108026701B/zh active Active
- 2016-06-03 RU RU2017146376A patent/RU2712598C2/ru active
- 2016-06-03 US US15/578,727 patent/US10767311B2/en active Active
- 2016-06-03 CA CA2989124A patent/CA2989124C/en active Active
- 2016-06-03 WO PCT/EP2016/062732 patent/WO2016193485A1/de active Application Filing
- 2016-06-03 EP EP16730730.5A patent/EP3303701B1/de active Active
- 2016-06-03 PL PL16730730T patent/PL3303701T3/pl unknown
- 2016-06-03 TR TR2019/06053T patent/TR201906053T4/tr unknown
- 2016-06-03 ES ES16730730T patent/ES2722550T3/es active Active
- 2016-06-03 BR BR112017026008-5A patent/BR112017026008B1/pt active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
CA2989124C (en) | 2023-04-04 |
TR201906053T4 (tr) | 2019-05-21 |
RU2017146376A (ru) | 2019-07-10 |
CN108026701A (zh) | 2018-05-11 |
US20180179707A1 (en) | 2018-06-28 |
US10767311B2 (en) | 2020-09-08 |
BR112017026008A2 (pt) | 2019-02-19 |
RU2017146376A3 (de) | 2019-08-21 |
WO2016193485A1 (de) | 2016-12-08 |
PL3303701T3 (pl) | 2019-09-30 |
CN108026701B (zh) | 2020-10-23 |
RU2712598C2 (ru) | 2020-01-29 |
EP3303701B1 (de) | 2019-01-30 |
BR112017026008B1 (pt) | 2022-06-28 |
CA2989124A1 (en) | 2016-12-08 |
ES2722550T3 (es) | 2019-08-13 |
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