EP2569484A1 - Kernpapier - Google Patents
KernpapierInfo
- Publication number
- EP2569484A1 EP2569484A1 EP11722752A EP11722752A EP2569484A1 EP 2569484 A1 EP2569484 A1 EP 2569484A1 EP 11722752 A EP11722752 A EP 11722752A EP 11722752 A EP11722752 A EP 11722752A EP 2569484 A1 EP2569484 A1 EP 2569484A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core paper
- pulp
- paper
- wet
- paper according
- 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
- 238000004519 manufacturing process Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 29
- 239000000654 additive Substances 0.000 claims abstract description 27
- 238000005470 impregnation Methods 0.000 claims abstract description 21
- 230000000996 additive effect Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 11
- 239000013543 active substance Substances 0.000 claims abstract description 8
- 239000012876 carrier material Substances 0.000 claims abstract description 8
- 239000000123 paper Substances 0.000 claims description 131
- 239000000835 fiber Substances 0.000 claims description 28
- 239000004094 surface-active agent Substances 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000002655 kraft paper Substances 0.000 claims description 17
- 239000011111 cardboard Substances 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- -1 siloxane chains Chemical group 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 239000000080 wetting agent Substances 0.000 claims description 7
- 241000294754 Macroptilium atropurpureum Species 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- 238000009736 wetting Methods 0.000 claims description 5
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- 150000002170 ethers Chemical class 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 229930195729 fatty acid Natural products 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- 150000002430 hydrocarbons Chemical group 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 239000011087 paperboard Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 229920001131 Pulp (paper) Polymers 0.000 claims description 3
- 150000008051 alkyl sulfates Chemical class 0.000 claims description 3
- 230000001588 bifunctional effect Effects 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- 239000002243 precursor Substances 0.000 claims description 3
- 239000000344 soap Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- 102000004190 Enzymes Human genes 0.000 claims description 2
- 108090000790 Enzymes Proteins 0.000 claims description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 2
- 239000004435 Oxo alcohol Substances 0.000 claims description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 2
- 239000002174 Styrene-butadiene Substances 0.000 claims description 2
- 229920002522 Wood fibre Polymers 0.000 claims description 2
- 229920001587 Wood-plastic composite Polymers 0.000 claims description 2
- 150000001298 alcohols Chemical class 0.000 claims description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 150000001413 amino acids Chemical class 0.000 claims description 2
- 239000002280 amphoteric surfactant Substances 0.000 claims description 2
- 239000003945 anionic surfactant Substances 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000003139 biocide Substances 0.000 claims description 2
- 238000004061 bleaching Methods 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- QHIWVLPBUQWDMQ-UHFFFAOYSA-N butyl prop-2-enoate;methyl 2-methylprop-2-enoate;prop-2-enoic acid Chemical compound OC(=O)C=C.COC(=O)C(C)=C.CCCCOC(=O)C=C QHIWVLPBUQWDMQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 239000003093 cationic surfactant Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- POULHZVOKOAJMA-UHFFFAOYSA-M dodecanoate Chemical compound CCCCCCCCCCCC([O-])=O POULHZVOKOAJMA-UHFFFAOYSA-M 0.000 claims description 2
- 239000000975 dye Substances 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 239000011094 fiberboard Substances 0.000 claims description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 125000000524 functional group Chemical group 0.000 claims description 2
- 150000004676 glycans Chemical class 0.000 claims description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-M hexadecanoate Chemical compound CCCCCCCCCCCCCCCC([O-])=O IPCSVZSSVZVIGE-UHFFFAOYSA-M 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 claims description 2
- 125000001165 hydrophobic group Chemical group 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 229940070765 laurate Drugs 0.000 claims description 2
- 239000011859 microparticle Substances 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- 229940049964 oleate Drugs 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- 239000011120 plywood Substances 0.000 claims description 2
- 229920000867 polyelectrolyte Polymers 0.000 claims description 2
- 229920001282 polysaccharide Polymers 0.000 claims description 2
- 239000005017 polysaccharide Substances 0.000 claims description 2
- 229920000136 polysorbate Polymers 0.000 claims description 2
- 229940068965 polysorbates Drugs 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 150000003141 primary amines Chemical class 0.000 claims description 2
- 150000003856 quaternary ammonium compounds Chemical class 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000000600 sorbitol Substances 0.000 claims description 2
- 239000011115 styrene butadiene Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 239000002025 wood fiber Substances 0.000 claims description 2
- 239000011155 wood-plastic composite Substances 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 claims 1
- 229920000877 Melamine resin Polymers 0.000 claims 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims 1
- 125000005396 acrylic acid ester group Chemical group 0.000 claims 1
- 239000004202 carbamide Substances 0.000 claims 1
- 239000011093 chipboard Substances 0.000 claims 1
- 230000009977 dual effect Effects 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 235000012222 talc Nutrition 0.000 claims 1
- 239000002657 fibrous material Substances 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000011162 core material Substances 0.000 description 57
- 239000010893 paper waste Substances 0.000 description 13
- 238000007792 addition Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011101 paper laminate Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JZLWSRCQCPAUDP-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;urea Chemical compound NC(N)=O.NC1=NC(N)=NC(N)=N1 JZLWSRCQCPAUDP-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000004890 Hydrophobing Agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001767 cationic compounds Chemical class 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000005661 hydrophobic surface Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000962 poly(amidoamine) Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 238000007652 sheet-forming process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
-
- 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
-
- 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
Definitions
- the present invention relates to core paper, in particular core paper as used for the production of decorative paper laminates.
- core paper in particular core paper as used for the production of decorative paper laminates.
- Invention a method for producing the core paper and the use of the core paper as a carrier material for and / or on layer structure (s) such as
- Core paper is known in the art and is usually used as a carrier for
- Decorative papers used to produce laminates for example, often find application in the form of laminate and countertops, floor coverings, etc.
- the structure of such a laminate consists of several layer-connected layers, which consist of the same or different materials to fulfill special functions and properties.
- core paper is used as one of these layers.
- the bonding of these layers is usually carried out by pretreatment of the individual layers, such as, for example, previous impregnation impregnation and subsequent compression of the layers in the stack under pressure and temperature.
- Core paper known in the art is made from virgin pulp as a raw material which meets the demanding conditions required
- the object of the present invention is to at least partially overcome the disadvantages known in the prior art.
- the above object is achieved by a core paper according to the invention according to claim 1, a method for
- the present object is achieved by the fiber-containing and, if appropriate, wastepaper-containing core paper according to the invention.
- the core paper according to the invention consists at least of a proportion of a recycled pulp mixture and a wet strength agent as the first additive.
- the core paper according to the invention is characterized by the addition of a surfactant active substance as a second additive in the production, to increase the capillarity.
- the addition amount of the second additive is in the range of 0.05% to 2% of the commercial product in terms of the atro substance.
- a carrier paper as used for example in the lamination of decorative papers. In the production of this paper from recycled, so-called recycled fibers, at least one surface-active substance is used in addition to conventional wet strength agents.
- laminating means in accordance with the latent word stem "lamina” meaning "layer”, all types of combination of different material layers.
- carrier material refers to material layers to which or under which one (or more) further layer (s) can be laminated. Laminates are often referred to as layered composites.
- recycled fiber means all types of fibrous materials which are reprocessed for the production of paper, paperboard and cardboard, in particular of core paper, and are used in the production of paper, paperboard and cardboard, in particular of core paper.
- these types of waste paper are determined in accordance with CEN European Standard EN 643.
- wet strength agents are to be understood as meaning all additives which have the strengths of paper, paperboard, cardboard and core paper, inter alia. when wet, increase.
- wet strength agents are to be understood as meaning all additives which have the strengths of paper, paperboard, cardboard and core paper, inter alia. when wet, increase.
- the wet strength is determined for example by the tensile load of a wet
- Paper strip in a tensile tester which leads with constant feed to the break of the wet paper strip. It is necessary to use
- Decor paper area is the wet strength for the process step of Impregnating resin impregnation, in which the paper web is passed through a liquid bath, a basic requirement. Many wet strength agents or wet strength agents must condense in the paper structure and polymerize. This takes place only partially in the dryer section of a paper machine. For complete training of
- surfactant refers to all types of substances which form the surface or the surface
- An interface means the area between two immiscible phases. From one
- phase boundaries can be characterized by interfacial or surface tension, which describes the tendency to reduce the interface.
- Surfactants also known as wetting agents, detergents (surfactants, soap) or emulsifiers. Such substances are characterized by their polar structure in that they prefer to attach to interfaces of a disperse system. While “surfactant” refers to all such materials, the term “surfactant” is limited to substances that attach to the "surface" of a liquid at the boundary to the gas phase, eg, at the surface of water, e.g., to form
- Foam can lead.
- capillarity an effect which occurs due to the surface tension of liquids, preferably in cavities, is referred to.
- the effect of capillarity is based on the molecular forces that occur within a substance (cohesive forces) and at the interface between a liquid, a solid (vessel wall) and a gas (e.g., air) (adhesion forces).
- the capillarity is based i.a. the suction effect of
- Impregnation properties of the core paper according to the invention and the capillarity designated according to the present invention are determined by the suction behavior, height of rise, liquid absorption capacity, wetting, contact angle,
- Atro Surface tension influenced or characterized. Under atro is understood absolutely dry. Atro is often referred to as otro (oven-dry). This designation is the standard for measuring the dry content of paper and pulp. The determination is carried out, for example, according to the standard: BS EN ISO 638 Paper, board and pulp - Determination of
- the proportion of recycled pulp mixture is greater than 25%, moreover between greater than 40 and 100%, preferably between 50 and 95%, particularly preferably between 70 and 90%, preferably in the range of 75%, particularly preferably above 80%, most preferably over 95% and in particular up to 100% and in particular the pulp is selected from a group which, for example kraft pulp and / or kraftliner in particular from department store waste
- Corrugated cardboard with Kraftliner and / or corrugating medium on pulp and / or Thermo Chemical Pulp used corrugated cardboard with layers of test or kraftliner and at least one layer of Kraftliner, used bags made of kraft pulp wet-tear resistant or not wet-crack resistant, unused sacks
- the percentage of recycled pulp in the total pulp is given as a percentage.
- Components of the total fiber material can also be so-called
- Fresh fiber as well as artificial fibers include. Show here
- Fresh fiber fabrics which are chemical and / or mechanical
- the strength parameters can be static and dynamic
- Static strength is the force that a paper can withstand under slow and even tension.
- the static strength parameters include, for example, breaking strength, breaking length, elongation at break, expansion modulus. Under a dynamic
- the dynamic strength parameters include, for example, specific tear propagation resistance, bursting strength, double fold number (buckling strength).
- Examples of general paper properties are paper smoothness, porosity, roughness, air permeability, formation, stiffness, flatness and opacity.
- Impregnation behavior of the core paper according to the invention According to the required strength and properties of the final product, the respective required proportions of the total pulp are assembled. For one
- Total fiber material consisting of 100% reprocessed pulp mixtures requires optimized production processes and special technical know-how.
- Recycled pulp may also be referred to as waste paper.
- CEN European Standard EN 643 lists waste paper grades in different classes. For the present invention in particular waste paper grades from class II are of importance.
- the wet strength agent is selected as the first additive from a group which
- Polyolefin dispersions polyamidoamine resins, polyamidoamine-epichlorohydrin resins, combinations thereof, and the like.
- the functioning of these listed wet strength groups with respect to the connection of the fibers at the points of contact and intersection in the fiber network has been previously considered
- the surface-active substance is selected as the second additive from a group which has compounds which accumulate strongly, in particular at interfaces. According to their functional chemical groups, the additives become bifunctional, anionic, nonionic and cationic compounds
- the characteristic feature of all surface-active substances is their polar structure, usually due to at least one lipophilic
- Hydrocarbon radical and at least one hydrophilic functional group whereby they prefer to attach to interfaces of a disperse system.
- surfactants such as surfactants are: amphiphilic
- anionic surfactants are in particular soaps, linear
- nonionic surfactants are in particular fatty alkyl polyethylene glycol ethers, fatty alcohol ethoxylates, fatty acid condensates, ethylene oxide / propylene oxide copolymers (EO / PO), alkylphenol ethoxylates, sorbitan fatty acid esters, sorbitan mono- (di-, tri) laurate, oleate, palmitate, stearate, polysorbates, sorbitan sesquioleates, alkyl polyglucosides, N-methylglucamides, alkylphenol polyethylene glycol ethers, fatty alcohols, oxo alcohols, Ziegler alcohols, alkylphenols and ethylene oxide.
- cationic surfactants are in particular quaternary ammonium compounds having hydrophobic groups, salts of long-chain primary amines.
- amphoteric surfactants are in particular betaines, amino acid surfactants, N- (acylamidoalkyl) betaines, propylene oxide.
- surface-active substances are polyelectrolytes, emulsifiers, wetting and dispersing agents, wetting agents and polysaccharides, in particular sorbitol.
- the stock suspension may contain further additives which are used as so-called chemical auxiliaries or additives in the papermaking process to achieve certain
- Properties, effects and process conditions are added in a controlled manner or are already contained in a modified form in the recycled pulp or waste paper. These may be, in particular, retention aids,
- Drainage aids dual-agent retention systems or microparticle systems, wet and dry strength agents, fillers and / or pigments, in particular from a group of talc, titanium dioxide, aluminum hydroxide, bentonite, barium sulfate,
- Coating components defoamers, deaerators, biocides, enzymes,
- Bleaching aids optical brighteners, dyes, Nuancierfarbstoffen, Störstofffworder, precipitating agent (fixer), wetting agents, pH regulators combinations thereof and the like.
- interactions can also result in undesired effects, as a result of which the additives then negatively influence the process processes as so-called "contaminants".
- the surface-active active substance in particular in a weight proportion of 0.1% to 3%, preferably from 0.5% to 1, 25%, more preferably from 0.1% to 1.5% or 0.5% to 1%, more preferably in the range of 0 ⁇ x ⁇ 2% and preferably of 1%, 1, 5% or 2% based on atro added.
- the dosing range of the surfactant active substance shown here was determined from test series and represents an optimized range of effectiveness for achieving the optimum paper properties, in particular for increasing the capillarity.
- Core paper can be produced as follows: In a so-called
- an aqueous pulp suspension is provided.
- the pulp suspension preferably has undergone a sorting, in particular a 2-stage pressure sorting and a 3-stage
- Slit sorters are used, which in particular have slot widths between 0.2 to 0.3 mm and preferably 0.25 mm. Further process steps may be dispersion stages and / or ash removal processes. In addition to other chemical auxiliaries or additives, which influence the paper production process as well as the paper properties, is in this pulp suspension
- the aqueous pulp suspension is referred to as the addition of all raw materials / additives and shortly before the paper machine as so-called finished material.
- Hydrophobizing agent in order to thereby influence and adjust specifically the penetration behavior of the core paper targeted by the addition of two counter-acting aids, ie in particular between surfactants and water repellents.
- the addition of a hydrophobing agent leads to the reduction of the wetting speed and in particular can dampen the abrupt wetting behavior possibly caused by the addition of the surfactant.
- the object of the present invention is further achieved by a method for producing a core paper according to claim 1.
- the method comprises the following steps:
- the first additive is in
- Process step is an optimal homogenization of the surfactant in the precursor suspension, with an additional entry of air into the system, which is usually noticeable in blistering or foaming, is to be avoided.
- Process step shows some framework conditions of production.
- the method according to the invention described above may also include the following additional step. Impregnation of the core paper with a synthetic resin, wherein a
- Impregnation in particular a treatment, a saturation and / or a impregnating resin impregnation for the production of a particle in particular Fiber composite material is.
- particles or fibers are embedded in another component of the composite, the so-called matrix.
- the method according to the invention described above may also include the following additional step.
- this method step also requires the use of the core paper for the production of a layered composite material.
- the present invention also includes the use of the core paper as a material component in composites, in particular of
- Laminated composite materials in particular compact plates (in some cases up to 10 mm thick), fiber composite materials, particle composite materials and
- the present invention also includes the use of the
- Core paper as a carrier material for sheet-like layer structure in particular of overlays, decorative papers, films and nonwoven materials and / or as a cover layer in particular as an overlay and Vorimoniagnatpapier and / or as a carrier material on support plates in particular of wood-based panels, such as
- Particle board Oriented Strandboard (OSB) panels, high and medium density fiberboard, plywood panels, mineral-based engineered wood-based panels, solid wood panels, countertops, floor coverings and, preferably, for
- surface-coated panels such as wood-based panels, panels,
- the core paper according to the invention covers the use as carrier material for all conceivable layer structures.
- the main advantage of the core paper according to the invention is that at least a portion of recycled pulp is used, which results in savings in the
- Basis weight range of 40 to 400 g / m 2 preferably in the range between 140 to 300 g / m 2 , more preferably between 150 to 250 g / m 2 , most preferably above 150 g / m 2 , conventional kraftliner fresh fiber, in particular also used kraft pulp.
- the fresh fiber pulp comes from an upstream pulp production, so that no
- Drying steps of the pulp are interposed, whereby in particular no hornification of the pulp takes place.
- the hornification of the pulp has an influence on the surface properties of the fibers and can negatively affect the strength properties and the capillarity or absorbency of the finished pulp
- Lignin-containing fibers in contrast to lignin-free fibers due to the water-repellent, hydrophobic surface properties of the lignocellulosic fibers have a reduced absorbency.
- the production of the core paper according to the invention from up to 00% reprocessed pulp takes place.
- recycled pulp For example, according to a preferred embodiment, predominantly waste paper grades of unbleached native pulps were used.
- the sheet formation of the core paper with a basis weight between 40 to 400 g / m 2 on the paper machine was carried out, for example, in one layer on a wire with attached top wire drainage, in particular a hybrid former and / or downstream dandy cutter.
- the quality criterion of the test series for the process steps in production was the positive influence on the capillarity of the core paper.
- core paper according to the invention at least comparable capillarity can be achieved, what u.a. also from a comparable suction height is visible.
- the wet strength could be improved, showing an increase in the longitudinal (wet) breaking force in the region of 20% over the prior art.
- the improvement in impregnability is due to an improved wet strength of the core paper. A comparison is described below with reference to table values.
- Table 1 is a comparison of the comparison parameters of the core paper.
- the paper parameters suction height, longitudinal force (dry), longitudinal force (wet) and air permeability are in the prior art (100% virgin fiber / 0%
- Waste paper placed at 100% waste paper and the core paper according to the invention facing each other.
- the suction height and air permeability are at the level of the prior art, the breaking force along (dry) is reduced by half, and the breaking force along (wet) is improved by 20% over the prior art.
- Paper type (substance composition)
- Table 1 Comparison of the comparison parameters of the core paper.
Landscapes
- Paper (AREA)
Abstract
Description
Claims
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PL11722752T PL2569484T3 (pl) | 2010-05-10 | 2011-05-05 | Papier rdzeniowy |
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Application Number | Priority Date | Filing Date | Title |
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DE102010016864.5A DE102010016864B4 (de) | 2010-05-10 | 2010-05-10 | Faserstoffhaltiges Kernpapier, Verfahren zu dessen Herstellung und dessen Verwendung |
PCT/EP2011/057250 WO2011141355A1 (de) | 2010-05-10 | 2011-05-05 | Kernpapier |
Publications (3)
Publication Number | Publication Date |
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EP2569484A1 true EP2569484A1 (de) | 2013-03-20 |
EP2569484B1 EP2569484B1 (de) | 2014-04-09 |
EP2569484B2 EP2569484B2 (de) | 2020-05-27 |
Family
ID=44118995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP11722752.0A Active EP2569484B2 (de) | 2010-05-10 | 2011-05-05 | Kernpapier |
Country Status (9)
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US (1) | US20130068409A1 (de) |
EP (1) | EP2569484B2 (de) |
CN (1) | CN102947507A (de) |
DE (1) | DE102010016864B4 (de) |
DK (1) | DK2569484T4 (de) |
ES (1) | ES2461999T5 (de) |
PL (1) | PL2569484T3 (de) |
PT (1) | PT2569484E (de) |
WO (1) | WO2011141355A1 (de) |
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DE102011122012B4 (de) * | 2011-12-22 | 2017-04-06 | Neenah Gessner Gmbh | Imprägniertes Schleifrohpapier, Verfahren zur Herstellung von imprägniertem Schleifrohpapier und dessen Verwendung |
WO2014154297A1 (de) | 2013-03-28 | 2014-10-02 | Mayr-Melnhof Karton Ag | Verfahren zum herstellen eines kernkartons und kernkarton für einen schichtstoff |
CN103233386A (zh) * | 2013-04-12 | 2013-08-07 | 陕西科技大学 | 一种瓦楞芯纸的制备方法 |
CN103388273B (zh) * | 2013-08-19 | 2015-06-03 | 南京林业大学 | 一种利用瓦楞纸/纳米二氧化钛制备纳米疏水纸的方法 |
CN103898795B (zh) * | 2014-03-26 | 2016-02-10 | 江苏理文造纸有限公司 | 一种生物酶高强改性节能纸浆及制浆工艺 |
US10988899B2 (en) | 2017-03-09 | 2021-04-27 | Ecolab Usa Inc. | Fluff dryer machine drainage aid |
CN109235097A (zh) * | 2018-09-07 | 2019-01-18 | 中条山有色金属集团有限公司 | 一种瓦楞芯纸原纸的制备方法及其应用 |
AT525430B1 (de) * | 2021-12-23 | 2023-04-15 | Mondi Ag | Papierbahn und Verfahren zur Bildung einer Papierbahn |
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- 2010-05-10 DE DE102010016864.5A patent/DE102010016864B4/de active Active
-
2011
- 2011-05-05 CN CN2011800311857A patent/CN102947507A/zh active Pending
- 2011-05-05 WO PCT/EP2011/057250 patent/WO2011141355A1/de active Application Filing
- 2011-05-05 EP EP11722752.0A patent/EP2569484B2/de active Active
- 2011-05-05 PT PT117227520T patent/PT2569484E/pt unknown
- 2011-05-05 US US13/696,709 patent/US20130068409A1/en not_active Abandoned
- 2011-05-05 DK DK11722752.0T patent/DK2569484T4/da active
- 2011-05-05 ES ES11722752T patent/ES2461999T5/es active Active
- 2011-05-05 PL PL11722752T patent/PL2569484T3/pl unknown
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Also Published As
Publication number | Publication date |
---|---|
DE102010016864B4 (de) | 2018-09-27 |
PL2569484T3 (pl) | 2014-08-29 |
EP2569484B1 (de) | 2014-04-09 |
ES2461999T5 (es) | 2022-04-01 |
EP2569484B2 (de) | 2020-05-27 |
US20130068409A1 (en) | 2013-03-21 |
WO2011141355A1 (de) | 2011-11-17 |
CN102947507A (zh) | 2013-02-27 |
ES2461999T3 (es) | 2014-05-22 |
DE102010016864A1 (de) | 2011-11-10 |
PT2569484E (pt) | 2014-06-11 |
DK2569484T3 (da) | 2014-07-07 |
DK2569484T4 (da) | 2023-02-13 |
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