EP3795744A1 - Procédé de fabrication d'un papier absorbant texturé ainsi que dispositif correspondant - Google Patents

Procédé de fabrication d'un papier absorbant texturé ainsi que dispositif correspondant Download PDF

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Publication number
EP3795744A1
EP3795744A1 EP19199002.7A EP19199002A EP3795744A1 EP 3795744 A1 EP3795744 A1 EP 3795744A1 EP 19199002 A EP19199002 A EP 19199002A EP 3795744 A1 EP3795744 A1 EP 3795744A1
Authority
EP
European Patent Office
Prior art keywords
embossing
tissue paper
fine structure
structural elements
ply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19199002.7A
Other languages
German (de)
English (en)
Other versions
EP3795744B1 (fr
Inventor
Artur Koslowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Matthews International GmbH
Original Assignee
Matthews International GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matthews International GmbH filed Critical Matthews International GmbH
Priority to SI201930213T priority Critical patent/SI3795744T1/sl
Priority to ES19199002T priority patent/ES2911225T3/es
Priority to PT191990027T priority patent/PT3795744T/pt
Priority to EP19199002.7A priority patent/EP3795744B1/fr
Publication of EP3795744A1 publication Critical patent/EP3795744A1/fr
Application granted granted Critical
Publication of EP3795744B1 publication Critical patent/EP3795744B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • D21F11/006—Making patterned paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • 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
    • D21F11/14—Making cellulose wadding, filter or blotting paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B31F2201/0733—Pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B31F2201/0738—Cross sectional profile of the embossments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0758—Characteristics of the embossed product
    • B31F2201/0761—Multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0782—Layout of the complete embossing machine, of the embossing line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0784—Auxiliary operations
    • B31F2201/0787—Applying adhesive

Definitions

  • the invention relates to a method for the production of structured tissue paper and a corresponding device.
  • the method comprises the provision of press-dried single-ply or multi-ply tissue paper and the embossing of the single-ply or multi-ply tissue paper with an embossing element having a structured surface.
  • embossing a fine structure is produced in the tissue paper which has an embossing depth that varies along the surface of the tissue paper over a plurality of embossing depths perpendicular to the surface of the single-ply or multi-ply tissue paper.
  • a corresponding device for carrying out the method is also described.
  • Such a method and apparatus are known from US Pat US 2017/0246827 A1 known. Similar methods and devices also describe the EOP 2018 959 A2 and the EP 0 796 728 A2 .
  • tissue paper When tissue paper is dried using the through air drying (TAD) process, some of the material properties of the tissue paper are positively influenced, so that they have advantageous mechanical and haptic properties compared to tissue papers produced using a press drying process with a Yankee cylinder.
  • TAD through air drying
  • the residual moisture in the tissue paper is driven out with a heated, smooth cylinder. The consequence of this is that the surface of the tissue paper produced in this way has no discernible structure.
  • the residual moisture in the tissue paper is expelled with heated air, while the tissue paper is guided around a central cylinder with a transport or drying network.
  • the blow-through process is significantly more energy-consuming than the press-drying process.
  • the pulp fibers of the tissue paper are straightened due to being blown through with warm air, which leads to a soft surface of the tissue paper and an increase in volume compared to tissue materials produced using the press-drying process.
  • the still moist tissue paper is placed on an air-permeable transport network during the drying process in the blow-through process and takes due to the pressurization generated by the hot air, the structure of the network.
  • the structuring of the tissue paper produced in this way also has a positive effect on the material properties of the tissue paper; in particular, the tissue paper has a comparatively high softness.
  • the increased surface area improves the absorption capacity of the tissue paper.
  • a fine structure is produced in the tissue paper during the embossing, which has an embossing depth perpendicular to the surface of the single-ply tissue paper which varies along the surface of the tissue paper over a plurality of embossing depths.
  • a fine structure is produced, at least in sections, by a plurality of first structural elements of the embossing element, which are arranged essentially free of gaps on the structured surface of the embossing element, so that the fine structure is free of unembossed gaps.
  • the embossing element can, for example, have a structured surface that is modeled on the structure of a drying network of a TAD system. Since the tissue paper is usually embossed in the processing machine during further processing into, for example, toilet paper, kitchen rolls, serviettes, handkerchiefs or similar products in order to give it an individual appearance and / or to achieve technical effects, it can advantageously be provided to carry out the method according to the invention for improving the tissue paper properties in just such a processing machine, for example in an embossing unit of the processing machine. However, it is also conceivable to use the method according to the invention for the production of an intermediate or precursor product having said fine structure, which in a further Processing step, for example, is further processed into one of the above-mentioned end products.
  • the embossing element can accordingly be designed as an embossing roller or it can be part of an embossing roller.
  • Embossing rollers are used, for example, in the processing machines mentioned for the production of gluing points.
  • the embossing of the fine structure can take place with the same embossing element or with the same embossing roller with which the glue points mentioned are also provided.
  • the embossing of glue points and the embossing of the fine structure can, however, also be implemented in separate process steps and accordingly with the aid of separate embossing elements or embossing rollers.
  • an embossing element according to the invention in particular an embossing roller of this type, the advantageous material properties of tissue paper which has been dried in the blow-through process can at least for the most part be introduced in an essentially energy-neutral manner in the further processing of the tissue material, and this using tissue paper produced in an energetically more favorable manner in the press-drying process.
  • the fine structure introduced during embossing is not restricted to any specific geometries, but in order to achieve the material properties using TAD dried tissue paper, it can advantageously have a structure that is based on, or at least resembles, a structure of the drying network of a TAD system.
  • the teaching according to the invention is not restricted to structures of this type and, in addition to the structures used in the blow-through drying process, additional structures should also be taken into account.
  • the embossing roller on its entire surface with raised first structural elements for embossing the fine structure, for example to produce a preliminary product that is processed into toilet paper or another tissue product in a further processing step.
  • additional raised structural elements are to be introduced into the finely structured surface of the embossing element having the raised first structural elements, which are designed to provide the finely embossed tissue paper ply with a further finely embossed or unembossed To glue the tissue layer only at the points of the additional structural elements and thus to produce a multi-layer product.
  • Embossing units for producing gluing points are known from the prior art, so that the teaching according to the invention can only be achieved by exchanging the embossing element, in particular an embossing roller, which in addition to first structural elements for embossing the fine structure has second structural elements for providing the gluing points.
  • the second structural elements for providing the glue points can in particular differ from the first structural elements for providing the fine structure in that they have a greater height and thus a greater embossing depth perpendicular to the surface of the embossing element and a greater surface perpendicular to the height.
  • the tissue paper produced in the blow-through process can be structured both on the side facing the drying network and on the opposite side, depending on the process, in the method according to the invention it can be provided that the single-ply or multi-ply tissue paper is embossed on an unstructured and preferably on a smooth one Base rests, for example on a counter roller, for example a steel roller, with a smooth outer surface, so that the tissue paper does not receive any fine structuring on the side facing away from the embossing element.
  • a roller with a flexible jacket for example a roller with a rubber jacket, is particularly preferably used as the counter roller.
  • the embossing of the fine structure can include, at least in sections, the embossing of a continuous relief with fine structure elements tapering towards the bottom, which is preferably free of horizontal fine structure elements.
  • a fine structure can be generated which at least in sections has a large number of different embossing depths, preferably at least 5 different embossing depths, particularly preferably at least 10 different embossing depths and very particularly preferably at least 100 different embossing depths.
  • the fine structure particularly preferably has an even greater number of different embossing depths, for example more than 200 or more than 1000 different embossing depths.
  • the fine structure can be chaotic, for example Have structure that has no regularity or periodicity at least in partial areas.
  • the embossed elements can have an irregular structure in a cross section perpendicular to their height, for example no round or oval geometry with a constant radius or two constant radii and also no regular polygonal geometry with constant side lengths.
  • a fine structure can be produced which at least in sections has a deep structure in which all pairs of two adjacent fine structure elements of the fine structure have a different embossing depth.
  • the provision of the press-dried tissue paper can include the press-drying of a moist tissue paper.
  • the provision and the embossing can be carried out as successive method steps in the same processing machine for tissue paper.
  • the press drying and the embossing can also take place in the same process step, preferably simultaneously and using the same embossing element, in particular the same embossing roller.
  • the embossing of a fine structure can include, for example, the embossing of a network structure, a lattice structure, a fabric structure, or a negative thereof.
  • the fine structure can, however, also have an irregular, chaotic structure.
  • the fine structure can be embossed over the entire surface of the tissue paper in an identical design.
  • the embossing can include the embossing of glue points of a multi-ply tissue paper with the same embossing element.
  • the gluing points can be embossed with an embossing depth perpendicular to the surface of the multi-ply tissue paper which is at least 20%, preferably at least 30% and particularly preferably at least 40% greater than a maximum embossing depth of the fine structure.
  • the embossing of the fine structure can include the embossing of fine structure elements in the tissue paper which are arranged in a two-dimensional grid with a constant grid dimension.
  • the fine structure elements produced in this way can be arranged in a network structure, a lattice structure, or in a fabric structure.
  • the fine structure elements can be produced in a two-dimensional grid with a grid dimension of less than 5 mm, preferably less than 3 mm and particularly preferably less than 2 mm.
  • a device for carrying out the method described above it can be provided that it has a feed for press-dried single-ply or multi-ply tissue paper and an embossing unit for embossing the single-ply or multi-ply tissue paper with an embossing element having a structured surface.
  • the structured surface can have a plurality of raised first structural elements, of which each of the plurality of raised first structural elements has a maximum height that differs from the maximum height of each of the other of the plurality of raised first structural elements.
  • the plurality of raised first structural elements is arranged at least in sections on the structured surface of the embossed element, essentially without any gaps.
  • the plurality of raised first structural elements can have at least 5, particularly preferably at least 10 and particularly preferably at least 20 raised first structural elements, of which no pair of two first structural elements has the same maximum height.
  • the raised first structural elements can form a network structure, a lattice structure, a fabric structure, or a negative thereof.
  • the first structural elements can be arranged in a two-dimensional grid with a constant grid dimension and form a network structure, a lattice structure, or a fabric structure.
  • the grid dimension can be less than 5 mm, preferably less than 3 mm and particularly preferably less than 2 mm.
  • the structured surface of the embossing element for example an embossing roller, can have a further plurality of raised second structural elements which have a height that is at least 20%, preferably at least 30% and particularly preferably at least 40% greater than the maximum heights of the plurality of raised ones

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
EP19199002.7A 2019-09-23 2019-09-23 Procédé de fabrication d'un papier absorbant texturé ainsi que dispositif correspondant Active EP3795744B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SI201930213T SI3795744T1 (sl) 2019-09-23 2019-09-23 Postopek za proizvodnjo strukturiranega tissue papirja in ustrezna naprava
ES19199002T ES2911225T3 (es) 2019-09-23 2019-09-23 Procedimiento para la producción de un papel tisú estructurado así como un dispositivo correspondiente
PT191990027T PT3795744T (pt) 2019-09-23 2019-09-23 Procedimento para o fabrico de um papel absorvente texturado, bem como um correspondente equipamento
EP19199002.7A EP3795744B1 (fr) 2019-09-23 2019-09-23 Procédé de fabrication d'un papier absorbant texturé ainsi que dispositif correspondant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19199002.7A EP3795744B1 (fr) 2019-09-23 2019-09-23 Procédé de fabrication d'un papier absorbant texturé ainsi que dispositif correspondant

Publications (2)

Publication Number Publication Date
EP3795744A1 true EP3795744A1 (fr) 2021-03-24
EP3795744B1 EP3795744B1 (fr) 2022-01-12

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ID=68172080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19199002.7A Active EP3795744B1 (fr) 2019-09-23 2019-09-23 Procédé de fabrication d'un papier absorbant texturé ainsi que dispositif correspondant

Country Status (4)

Country Link
EP (1) EP3795744B1 (fr)
ES (1) ES2911225T3 (fr)
PT (1) PT3795744T (fr)
SI (1) SI3795744T1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0796728A2 (fr) * 1996-03-20 1997-09-24 James River Corporation Of Virginia Procédé et dispositif de gaufrage avec liaison par perforation en des points déterminés
EP2018959A2 (fr) * 2007-07-18 2009-01-28 Fabio Perini S.p.A. Matériau de papier gaufré, procédé et dispositif pour sa fabrication
US20170246827A1 (en) 2014-08-29 2017-08-31 Sofidel S.P.A. Embossed multilayered cellulose product and means for the production thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0796728A2 (fr) * 1996-03-20 1997-09-24 James River Corporation Of Virginia Procédé et dispositif de gaufrage avec liaison par perforation en des points déterminés
EP2018959A2 (fr) * 2007-07-18 2009-01-28 Fabio Perini S.p.A. Matériau de papier gaufré, procédé et dispositif pour sa fabrication
US20170246827A1 (en) 2014-08-29 2017-08-31 Sofidel S.P.A. Embossed multilayered cellulose product and means for the production thereof

Also Published As

Publication number Publication date
EP3795744B1 (fr) 2022-01-12
ES2911225T3 (es) 2022-05-18
PT3795744T (pt) 2022-04-14
SI3795744T1 (sl) 2022-07-29

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