EP3585940A1 - Verfahren und vorrichtung zur herstellung einer faserstoffbahn in einer papiermaschine - Google Patents
Verfahren und vorrichtung zur herstellung einer faserstoffbahn in einer papiermaschineInfo
- Publication number
- EP3585940A1 EP3585940A1 EP18700752.1A EP18700752A EP3585940A1 EP 3585940 A1 EP3585940 A1 EP 3585940A1 EP 18700752 A EP18700752 A EP 18700752A EP 3585940 A1 EP3585940 A1 EP 3585940A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fiber mat
- fiber
- starting material
- individual fibers
- packaging
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 239000002657 fibrous material Substances 0.000 title abstract 5
- 239000000835 fiber Substances 0.000 claims abstract description 211
- 238000004806 packaging method and process Methods 0.000 claims abstract description 55
- 239000007858 starting material Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000010276 construction Methods 0.000 claims abstract description 10
- 239000000123 paper Substances 0.000 claims description 52
- 239000011230 binding agent Substances 0.000 claims description 14
- 238000007711 solidification Methods 0.000 claims description 10
- 230000008023 solidification Effects 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 8
- 230000000295 complement effect Effects 0.000 claims description 5
- 235000013305 food Nutrition 0.000 claims description 4
- 241000609240 Ambelania acida Species 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000010905 bagasse Substances 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 239000000356 contaminant Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000010902 straw Substances 0.000 claims description 2
- 239000011087 paperboard Substances 0.000 abstract 1
- 102100040428 Chitobiosyldiphosphodolichol beta-mannosyltransferase Human genes 0.000 description 25
- 239000003570 air Substances 0.000 description 19
- 238000001035 drying Methods 0.000 description 10
- 238000004049 embossing Methods 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 235000013399 edible fruits Nutrition 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000010893 paper waste Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 3
- 239000010897 cardboard waste Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F9/00—Complete machines for making continuous webs of paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N5/00—Manufacture of non-flat articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N5/00—Manufacture of non-flat articles
- B27N5/02—Hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/02—Layered products comprising a layer of paper or cardboard next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
- D04H1/26—Wood pulp
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/12—Making corrugated paper or board
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2553/00—Packaging equipment or accessories not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
Definitions
- the invention relates to a method for producing a fiber mat, which is particularly suitable for use in the production of packaging board or fibrous construction elements, of a fibrous starting material, as well as an apparatus for performing the method and a packaging board produced by the method.
- packaging board is formed as a corrugated board.
- This consists of a corrugated paper wave, which is arranged between two cover papers and glued to a unit with these.
- the corrugated paper acts as a spacer between the cover papers to ensure the required flexural strength of the corrugated box.
- the corrugated paper and the cover papers are each produced on paper machines in paper mills.
- the corrugated cardboard box is then produced on site or in other factories in a corrugated cardboard plant.
- the wave is generated from the corrugated paper under higher temperature and by moistening the corrugated paper on corrugating rolls and glued to the ceiling paper.
- the corrugated paper and the cover papers are produced in paper machines in conventional process steps.
- the corrugated paper and the ceiling paper are produced by dewatering, pressing and thermal drying.
- dewatering step very large quantities of white water are withdrawn from the suspension and in some cases returned to the process.
- This known manufacturing process is complex and requires, on the one hand, many process steps and, on the other hand, large amounts of energy for drying the produced papers and for pumping the large quantities of water necessary for wet-forming.
- production plants are only economically operable in places where sufficient energy and water is available. Other locations can therefore only be supplied with packaging carton by this is transported there at cost.
- the object of the invention is therefore to provide a less expensive process with lower energy consumption, as well as a simple device for the production of packaging board or construction elements and to avoid the disadvantages of known methods.
- a process is proposed for producing a fiber mat which is particularly suitable for use in the manufacture of packaging board or fibrous structural members from a fibrous feedstock comprising the steps of: a. Providing the fiber-containing starting material;
- the specific volume of the fiber mat is greater than 1.6 cm 3 / g, in particular greater than 2 cm 3 / g, preferably greater than 3 cm 3 / g and wherein the fiber mat thickness> 1 mm, in particular> 1.5 mm, preferably> 2 mm is.
- the fiber-containing starting material may at least partially comprise fresh fibers, bamboo, straw, bagasse or recycled goods.
- the recycled article may include corrugated board waste and / or cardboard waste and / or waste paper and / or paper or cardboard waste from papermaking and also products made from the fiber mat, as well as market pulps.
- packaging cardboard can be produced from the fiber mat with a spatial structure.
- the at least partially made of the fiber mat packaging board is preferably processed into products such as packaging boxes. These can be used as fruit boxes, vegetable boxes.
- no or less expensive virgin fibers must be used.
- the products made from the fiber mat can advantageously also be used.
- the fiber mat produced differs from conventionally produced wave papers by the high specific volume with simultaneously large fiber mat thickness and the spatial structure of the fiber mat, which can be easily matched to the use of corrugated cardboard to achieve good performance properties.
- the spatial structure can be wave-shaped, zig-zag-shaped structures or else local, crater-shaped depressions and elevations. That is, the design of the center layer of packaging cartons is no longer limited to the waveform and can be chosen almost arbitrarily. For example, a packaging board with uniform flexural rigidity can be made in all directions.
- the spatial structure may be undulating, zigzag-shaped structures or local, crater-like depressions and elevations.
- construction elements such as insulating materials, for example for house construction, can be produced by the method according to the invention.
- the specific volume of the fiber mat is preferably limited to ⁇ 10 cm 3 / g. This ensures sufficient pressure resistance across the thickness of the fiber mat.
- the method is carried out in the vicinity, especially on site, by mail order companies or packaging manufacturers in industrialized regions.
- the packaging and shipping of goods can thus be combined with the production of packaging board and possibly packaging boxes.
- the used packaging boxes are processed by the process according to the invention cost and environmentally friendly to new packaging boxes. Thanks to this flexible process, the size and shape of the new packaging boxes can be easily adapted to the new products to be packaged.
- the recycled goods can be collected economically within a radius of 100 km to the location of the system for carrying out the method.
- the paper or packaging cardboard waste resulting therefrom in the known processes for packaging board production can also be processed to form new packaging cartons and packaging boxes.
- the implementation of the method is particularly suitable at locations of mail order companies or packaging manufacturers, as there are no own production-related wastewater treatment plants necessary and available.
- the method is also advantageously suitable for producing fiber mats also in locations in dry, arid areas of the tropical or subtropical climatic zones, since only small amounts of water are required.
- it may be sufficient to use an impingement flow drying device and / or a through-flow drying device, wherein the warm and dry ambient air can be used as the drying medium.
- the solution according to the invention can be used particularly advantageously.
- the recycled material is collected as a starting material in a small radius of preferably about 100 km from the location of carrying out the method.
- the method is particularly suitable for many recycling cycles without compromising the quality of the fiber mats, especially in terms of strength properties, too much.
- the final dry content of the fiber mat is> 80%, especially>85%>,preferably>90%>, wherein the dry content, as usual in paper technology, is given as the quotient of dry matter to the total mass of the fiber mat.
- the process steps a) to d) are carried out in claim 1 so that the proportion of water in the total mass of the starting material and the raw material 40%>, preferably 30%>, in particular 20%> does not exceed.
- the treatment step b.) Preferably comprises at least one step from the following group: comminuting the starting material to a maximum size of 60 mm by 60 mm; Freeing of the starting material of impurities; Decomposing the starting material into individual fibers and / or fiber bundles in high-consistency refiners and / or in cross-flow debranks and / or in mills; Freeing the individual fibers and / or fiber bundles of contaminants after the cutting step;
- the length of the individual fibers and / or fiber bundles can advantageously be adjusted to less than 4 mm, in particular to less than 3 mm, during or after the dismantling step.
- the cutting step can be carried out so that the starting material is not completely decomposed into single fibers, but still contains fiber bundles and specks. Due to this lower intensity of the cutting step less energy is needed.
- the individual fibers and / or fiber bundles are applied in air flow on the surface of a carrier element in the forming step c.), Wherein the carrier element may be made permeable to air or impermeable to air.
- the air flow may be heated from the ambient temperature. Preferably to a temperature greater than 30 ° C, preferably greater than 40 ° C.
- the air flow can also be mixed with saturated or unsaturated water vapor.
- a heating of the individual fibers and / or the fiber bundles is achieved at the same time and supports their binding to each other.
- the formation and deposition of the individual fibers and / or the fiber bundles is improved.
- an air-permeable carrier element can be designed as a circulating or stationary belt, for example a woven screen or felt or a porous membrane, or as a perforated roller or as a perforated plate.
- the surface of the carrier element may also have complementary structures to the spatial structure of the fiber mat to be generated.
- the complementary structures of the support member may be correspondingly different.
- the complementary spatial structures may be wavy, zig-zag or include local, crater-shaped depressions and elevations when the fiber mat is used as the middle layer between two cover papers in the production of packaging board. The complex process for the production of classic corrugated board can thus be simplified.
- the spatial structure of the fiber mat can correspond to the spatial shape of a product made of the fiber mat, for example a fruit crate. This leads to a reduction in the production steps of such products. It can at least partially omitted the cutting or punching, folding, gluing.
- a binder for binding the individual fibers and / or fiber bundles may be added in at least one of steps b.), C), d.).
- starch is used as a binder.
- the binder is activated in the solidification step d.)
- the binder is added to the air stream and mixed with the individual fibers and / or fiber bundles.
- the mixing step can be done by a static mixer.
- the fiber mat during and / or after the forming step c.).
- the desired thickness and / or the desired specific volume can be adjusted.
- This step is preferably carried out in coordination with the process control in the forming step.
- the solids content in the air stream that is, the concentration of the individual fibers and / or the fiber bundles and / or the pressure on the forming fiber mat during the forming can be influenced.
- the fiber mat can be produced endless and then rolled up.
- the fiber mat can be produced with a linear embossing, wherein the linear embossing has a contour that is matched to the product to be produced from the fiber mat. Due to the linear embossing, the fiber mat can be locally weakened, for example by perforation, so that the contour can be easily separated from the rest of the fiber mat.
- the imprint can be carried out, for example, with an embossing roller, which has the line-shaped contour as raised webs on the roll shell.
- the linear embossing can also be performed as non-perforating.
- the contour is only optically marked, so that the contour can be cut out of the fiber mat in a subsequent step by hand or by machine.
- the depositing of the individual fibers and / or the fiber bundles is controlled such that the regions of the contour lines have fewer individual fibers and / or the fiber bundles.
- the fiber mat in particular in the forming step, is not endlessly produced as a roll product, but is produced piecewise as a format product.
- the spatial structure of the fiber mat it is possible for the spatial structure of the fiber mat to correspond to the spatial shape of a product made of the fiber mat, for example a fruit crate. These products are made in one piece by piece.
- the fiber mat is produced in multiple layers.
- a plurality of individual forming steps for forming the respective layer are carried out one after the other.
- the individual forming steps are carried out synchronously.
- the individual fibers and / or fiber bundles of the individual layers can originate from the same starting material or else from different starting materials.
- the fiber mat is expediently joined and / or folded and / or reshaped in at least one further processing step, in particular for producing a spatial structure, for example a packaging box or an intermediate layer as a substitute for the corrugated corrugated paper of the known corrugated board between two cover layers of a packaging carton and / or surface finished, such as by applying a line containing a pigmented coating color.
- the fiber mat can serve as a replacement for the corrugated paper as compared to the known corrugated board.
- the further layers to be connected to the fiber mat as blankets, which after are made according to the conventional method are executed.
- the blankets can also be produced by the process according to the invention.
- at least one blanket layer is adhesively bonded to the fiber mat on the upper side and on the underside of the fiber mat.
- the invention also relates to packaging cardboard, in particular food packaging cardboard, which consists at least partially of the fiber mat produced by the process according to claim 1.
- the at least partially made of the fiber mat packaging board is preferably processed into products such as packaging boxes. These can be used as fruit boxes, vegetable boxes.
- the invention also relates to a packaging container, in particular a food packaging box, which consists at least partially of the fiber mat produced by the method according to claim 1 with a spatial structure.
- the invention also relates to an apparatus for carrying out the method according to claim 1 for producing a fiber mat, which is suitable in particular for use in the production of packaging board or fibrous construction elements, from a fiber-containing starting material, with a treatment plant for low-water treatment of the fiber-containing starting material in the air stream a raw material comprising individual fibers and / or fiber bundles; and with a dry forming device for forming the individual fibers and / or fiber bundles in air flow to a fiber mat so that a spatial structure is formed by the fiber mat, and with a solidification device for solidifying the formed fiber mat, wherein the specific volume of the fiber mat is greater than 1.6 cm 3 / g, in particular greater than 2 cm 3 / g, preferably greater than 3 cm 3 / g, and wherein the fiber mat thickness is> 1 mm, in particular> 1.5 mm, preferably> 2 mm.
- the treatment plant and the dry-forming device and the solidification device are preferably designed so that the water content of the total mass of the starting material and the raw material does not exceed 40%, preferably 30%, in particular 20%.
- the device for carrying out the method can be designed to be mobile. In a practical case, it can be dimensioned so compact that it is suitable for transport in a transport container, for example in an overseas container. This has the advantage that the device can be almost completely assembled or preassembled at the production site and then transported to the production site. This is particularly advantageous when the device is used in locations of dry, arid areas of tropical or subtropical climates.
- Figure 1 shows an embodiment of a corrugated cardboard according to the prior
- FIG. 2 shows a detail of a fiber mat according to the invention in an enlarged
- Figure 3a shows an embodiment of a fiber mat according to the invention with spatial
- Figure 3b shows another embodiment of a fiber mat according to the invention with a spatial structure
- FIG. 3c shows a further embodiment of a fiber mat according to the invention with a spatial structure
- FIG. 3d shows a further embodiment of a fiber mat according to the invention with a spatial structure
- FIG. 1 shows a section of a known embodiment of a corrugated cardboard 3 in cross section.
- packaging board is formed as corrugated board 4.
- This consists of a corrugated paper wave 4, which is arranged between two cover papers 5, 6 and is glued to a unit with these.
- the wavy corrugated paper 4 acts as a spacer between the ceiling papers 5, 6, to ensure a required flexural rigidity of the corrugated cardboard 3.
- the corrugated paper 4 and the cover papers 5, 6 are each produced on paper machines in paper mills.
- the corrugated board 3 is subsequently produced on site or in other factories in a corrugated cardboard plant.
- the wave is generated from the shaft paper 4 at higher temperature and by moistening the wave paper on corrugating rollers and glued to the ceiling papers 5, 6.
- the corrugated paper 4 and the cover papers 5, 6 are produced in paper machines in conventional process steps. Starting from an aqueous pulp suspension having a solids content in the range of 10 g / liter, the corrugated paper 4 and the cover paper 5, 6 are produced by dewatering, pressing and thermal drying. In the dewatering step, very large quantities of white water are withdrawn from the suspension and in some cases returned to the process.
- This known manufacturing process is complex and requires, on the one hand, many process steps and, on the other hand, large amounts of energy for drying the produced papers and for pumping the large quantities of water released during wet-forming.
- FIGS. 3 a to 3d show a section A of a fiber mat 1 according to the invention in an enlarged, schematic representation in cross-section, which has a thickness 2 of more than 1 mm and a specific volume of greater than 1.6 cm 3 / g.
- the section A is to show only the structure of the fiber mat 1.
- FIGS. 3 a to 3d Examples of the fiber mat 1 with a spatial structure are shown in FIGS. 3 a to 3d.
- the illustrated individual fibers and fiber bundles are essentially anisotropically oriented, that is to say their orientation has no preferred direction in this example.
- a statistical orientation of the individual fibers and / or the fiber bundles is present, that is to say the frequency distribution of the position of the individual fibers and / or fiber bundles has a preferred direction within the volume of the fiber mat.
- the preferred direction may be longitudinal or transverse to the direction of production or in the thickness direction.
- the individual fibers and / or the fiber bundles are present within the fiber mat 1 in a loose bandage, but the specific volume does not exceed the value of 10 cm 3 / g.
- the specific volume is calculated from the quotient of the thickness and the basis weight of the fiber mat 1.
- the individual fibers and / or the fiber bundles are glued together at the points of contact with one another by the binder starch.
- FIG. 3 a shows an embodiment of a fiber mat according to the invention with a spatial structure 1.
- the fiber mat 1 serves as a replacement for the corrugated wave paper in the known corrugated board.
- the fiber mat 1 with other, not darhe Bryanen, blankets, which are prepared by the conventional method associated.
- the blankets can also be produced by the process according to the invention.
- a ceiling layer is adhesively connected to the fiber mat 1 in each case.
- the section A is illustrated in Figure 2 in an enlarged and schematic representation.
- the spatial structure of the fiber mat has a zig-zag shape.
- FIGS. 3b to 3d Further possible spatial structures of the fiber mat 1 are shown in FIGS. 3b to 3d.
- the respective section A is illustrated in an enlarged and schematic representation in FIG.
- FIG. 3b shows a sinusoidal wavy structure
- FIG. 3c shows a wavy spatial structure formed from semicircles.
- the fiber mat 1 can be produced endlessly as a roll product as a replacement for the corrugated wave papers and then further processed.
- the fiber mat 1 can also be produced piecewise as a format product 9 and further processed into products such as packaging boxes 10. These can be used as fruit boxes, vegetable boxes.
- FIG. 3d shows a perspective view of a fiber mat 1 according to the invention with a spatial structure.
- the section A of the fiber mat 1 is shown in turn enlarged in the figure 2.
- the shape of the spatial structure of the fiber mat 1 is matched to the product to be produced from the fiber mat 1. In the present example, it is the product of three packaging boxes 10.
- the spatial structure of the fiber mat 1 corresponds to the spatial shape of a fiber mat produced from the Product. In this example of three packaging boxes 10, each having a bottom 11 and side walls 12.
- the illustrated packaging boxes 10 In order to obtain the individual packaging boxes 10, they must be cut out by hand or by machine in a subsequent step, that is, separated from the remaining fiber mat 1.
- the illustrated packaging boxes 10 have no lid in this example.
- handle openings can be cut out of the side walls 12.
- the illustrated packaging boxes 10 are formed in the forming step on an air-permeable support member, which is designed as a circulating belt.
- the surface of the carrier element has complementary structures to the packaging boxes 10 to be produced.
- the individual fibers and / or the fiber bundles can also be deposited only in the region of the structure of the carrier tape.
- the packaging boxes 10 are thus produced individually piece by piece as a format product 9. In this case, not shown, they need not be separated from the rest of the fiber mat 1, but only be dissolved out of the structure of the carrier tape.
- FIG. 4 shows an exemplary production process for producing the fiber mat 1 according to the invention.
- the collected fibrous furnish 13, comprising corrugated board waste and / or waste paper and / or paper or board waste from papermaking, is provided to the processing plant 14, with the individual fibers and / or fiber bundles being treated to be low in water.
- the proportion of water in the total mass of the starting material is always less than 40%.
- the fiber-containing starting material 13 is processed in the processing plant 14 in the air stream to raw material for the forming step.
- the fibrous starting material 13 is cleaned in a cleaning stage 21 of metallic objects and coarse dirt.
- the cleaning stage 12 comprises a metal detector or a gravity separator.
- a further cleaning stage 23 may be provided, in which by means of heavy or centrifugal force separator, such as air classifier or cyclone and Metallabscheidern Interfering substances are removed.
- the resulting raw material is fed to form the individual fibers and / or fiber bundles of a dry forming device 15.
- the raw material in the air stream via a distributor with baffles or mixing units is placed on the surface of a rotating, air-permeable screen as a carrier element.
- a suction box for extracting air from the forming zone is provided on the surface opposite the surface.
- solidification takes place in a solidification device 16.
- a binder in this example starch, is used.
- the binder addition 25 takes place in the fiberizing stage 24.
- the binder can be activated by application of heat in the solidification stage 16.
- the fiber mat can be vapor-deposited and irradiated
- the solidification can also be effected by spraying with water or by pressing
- this is rolled up in a reel 17 and as a roll 18 for further processing
- the contour matched to the product to be produced from the fiber mat 1 is cut out of the remaining fiber mat 1 and sent as a format product ng, the fiber mat 1 produced with a spatial structure can be converted into a product 8 in a forming device 7.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Forests & Forestry (AREA)
- Paper (AREA)
- Buffer Packaging (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017103847.7A DE102017103847A1 (de) | 2017-02-24 | 2017-02-24 | Verfahren und Vorrichtung zur Herstellung einer Faserstoffbahn in einer Papiermaschine |
PCT/EP2018/051043 WO2018153576A1 (de) | 2017-02-24 | 2018-01-17 | Verfahren und vorrichtung zur herstellung einer faserstoffbahn in einer papiermaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3585940A1 true EP3585940A1 (de) | 2020-01-01 |
Family
ID=61005822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP18700752.1A Pending EP3585940A1 (de) | 2017-02-24 | 2018-01-17 | Verfahren und vorrichtung zur herstellung einer faserstoffbahn in einer papiermaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US11261567B2 (de) |
EP (1) | EP3585940A1 (de) |
CN (1) | CN110088396A (de) |
DE (1) | DE102017103847A1 (de) |
WO (1) | WO2018153576A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2022055784A (ja) * | 2020-09-29 | 2022-04-08 | セイコーエプソン株式会社 | 成形体の製造方法 |
JP2022055783A (ja) * | 2020-09-29 | 2022-04-08 | セイコーエプソン株式会社 | 成形体の製造方法 |
JP2023007354A (ja) | 2021-06-29 | 2023-01-18 | セイコーエプソン株式会社 | 成形体の製造方法 |
DE102021125451A1 (de) | 2021-09-30 | 2023-03-30 | Voith Patent Gmbh | Verfahren und Maschine zur Herstellung einer Faserstoffbahn in einer Papiermaschine |
SE2250239A1 (en) * | 2022-02-22 | 2023-08-23 | Ekoligens Ab | Moulded products and systems and methods for making such moulded products from cellulose fibres |
WO2024147011A1 (en) * | 2023-01-05 | 2024-07-11 | Sol-Gel Materials & Applications Ltd | Method |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA955094A (en) * | 1971-07-02 | 1974-09-24 | Alistair K. Bodycomb | Corrugator |
US4100324A (en) | 1974-03-26 | 1978-07-11 | Kimberly-Clark Corporation | Nonwoven fabric and method of producing same |
JPS5230630B2 (de) * | 1974-07-08 | 1977-08-09 | ||
SE399015B (sv) * | 1976-10-06 | 1978-01-30 | Reinhall Rolf | Sett att framstella fiberplattor |
US4474846A (en) * | 1981-04-06 | 1984-10-02 | Van Dresser Corporation | Moldable fibrous mat and product molded therefrom |
DK172928B1 (da) * | 1998-05-01 | 1999-10-04 | Landbrugets Radgvningcenter | Fremgangsmade til fremstilling af enfibermatte,fibermatte samt anvendelse af en sadan fibermatte. |
RU2157867C2 (ru) | 1998-11-16 | 2000-10-20 | Общество с ограниченной ответственностью "Технобум" | Способ формования полотна из аэровзвеси волокнистого материала |
US20040192136A1 (en) * | 2003-03-25 | 2004-09-30 | Kimberly-Clark Worldwide, Inc. | Liquid absorbent wiping products made from airlaid webs |
WO2005013873A1 (en) * | 2003-08-08 | 2005-02-17 | Bki Holding Corporation | Forming wire for airland manufacturing process and products made therefrom |
WO2006011167A1 (en) * | 2004-07-29 | 2006-02-02 | Orlandi, S.P.A. | Method for manufacturing particularly soft and three dimensional nonwoven and nonwoven thus obtained |
KR101606722B1 (ko) * | 2008-09-11 | 2016-03-28 | 알바니 인터내셔널 코포레이션 | 부직포 지지부재 및 이의 제조방법 |
DE102009042362A1 (de) | 2009-09-23 | 2011-04-21 | Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg | Verfahren zur Herstellung von Kartonplatten bzw. Kartonplattensträngen aus Altpapier |
US8398915B2 (en) * | 2010-08-12 | 2013-03-19 | Johnson & Johnson do Brasil Industria e Comercio Produtos Paral Saude Ltda. Rodovia | Method for making a fibrous article |
JP5720255B2 (ja) * | 2011-01-12 | 2015-05-20 | セイコーエプソン株式会社 | 紙再生装置及び紙再生方法 |
JP6500329B2 (ja) | 2014-02-26 | 2019-04-17 | セイコーエプソン株式会社 | シート製造装置 |
SE539948C2 (en) * | 2016-03-18 | 2018-02-06 | The Core Company Ab | ISOSTATIC PRESSURE FORMING OF HEATED DRY CELLULOSE FIBERS |
-
2017
- 2017-02-24 DE DE102017103847.7A patent/DE102017103847A1/de not_active Withdrawn
-
2018
- 2018-01-17 WO PCT/EP2018/051043 patent/WO2018153576A1/de unknown
- 2018-01-17 US US16/476,158 patent/US11261567B2/en active Active
- 2018-01-17 EP EP18700752.1A patent/EP3585940A1/de active Pending
- 2018-01-17 CN CN201880005192.1A patent/CN110088396A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2018153576A1 (de) | 2018-08-30 |
US20190352851A1 (en) | 2019-11-21 |
US11261567B2 (en) | 2022-03-01 |
CN110088396A (zh) | 2019-08-02 |
DE102017103847A1 (de) | 2018-08-30 |
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