EP1584458B1 - Verfahren zum Herstellen eines mehrlagigen Zellulosefaserprodukts - Google Patents

Verfahren zum Herstellen eines mehrlagigen Zellulosefaserprodukts Download PDF

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Publication number
EP1584458B1
EP1584458B1 EP05290711A EP05290711A EP1584458B1 EP 1584458 B1 EP1584458 B1 EP 1584458B1 EP 05290711 A EP05290711 A EP 05290711A EP 05290711 A EP05290711 A EP 05290711A EP 1584458 B1 EP1584458 B1 EP 1584458B1
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EP
European Patent Office
Prior art keywords
cylinder
ply
embossing
pattern
glue
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.)
Expired - Lifetime
Application number
EP05290711A
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English (en)
French (fr)
Other versions
EP1584458A1 (de
Inventor
Sylvain Breteau
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.)
Essity Operations France SAS
Original Assignee
Georgia Pacific France SAS
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
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Classifications

    • 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
    • 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
    • B31F2201/0758—Characteristics of the embossed product
    • B31F2201/0761—Multi-layered
    • B31F2201/0764—Multi-layered the layers being nested
    • 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
    • B31F2201/0771—Other aspects of the embossing operations
    • B31F2201/0774—Multiple successive embossing operations
    • 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 the field of cellulose wadding products for sanitary or domestic use and aims in particular products cut into formats such as napkins or tissues.
  • Cellulose wadding also referred to as tissue paper in the field, is a lightweight and absorbent material that has been developed for the above mentioned applications. It enhances the qualities of softness or wet or dry resistance according to the particular use for which it is intended. For example, for a tissue paper, it puts priority softness because it comes into contact with the skin, especially the nose is very sensitive. In the case of a napkin, it favors the textile touch and a certain stiffness to imitate the drape of textile towels. In order to be able to combine several qualities, it is necessary to combine several plies of cellulose wadding of low grammage, embossed or not, each having different properties or not.
  • the Applicant has developed a napkin or tissue product consisting of several plies of cellulose wadding assembled by edge gluing along its periphery.
  • This product is covered by the patent EP 670,773 .
  • a method of manufacturing this product with three or four plies is represented on the figure 1 .
  • the machine is composed of a cylinder engraved according to the pattern forming the peripheral zone of the product; the pattern is composed for example of pins regularly distributed along strips arranged so as to form a frame.
  • the etching pattern corresponds to several juxtaposed products as described in FIG. EP 0893242 .
  • the cylinder 10 cooperates with a pressure cylinder 12 of parallel axis, made of rubber or other equivalent material, for embossing a first sheet of tissue paper 100 which is engaged between the two.
  • a sheet 100 with two superposed plies.
  • the double sheet is driven onto the cylinder 10 against the etching of which it is applied by the cylinder 12.
  • Glue preferably water-based, such as a polyvinyl glue, is deposited on the raised surfaces of the etching by means of
  • the gluing device shown comprises a cylinder communicating with a doctor chamber in which it takes a metered quantity of glue, and an applicator cylinder on which it deposits the glue.
  • the applicator roll deposits the glue on the surface elements in relief of the sheet 100, against which it is supported.
  • the cylinder 10 cooperates with a second pressure cylinder 16, said marrying cylinder, to ensure the connection of the first sheet 100 with a second sheet (or strip) of tissue paper 110.
  • the sheet or strip of tissue paper 100 is transferred in part onto the inner face of the second sheet which is brought into contact with the first sheet at the marrying roll.
  • the pressure exerted by the marrying cylinder 16 on the two strips of paper ensures the formation of a bond.
  • the second strip 110 is one or two plies.
  • tissue paper eg 60g / m 2
  • This combines good resistance in use and softness to the touch.
  • the delamination resistance in particular that of the outer ply corresponding to the second ply of the strip 110 above, is not satisfactory for the products with four plies.
  • this method of gluing does not make it easy to dose the amount of glue to be applied for the formation of the connection so as to provide an amount just sufficient to bind the plies between them without too much stiffen the handkerchief.
  • second fold of tissue paper 107 moves around a pressure cylinder 110, and is embossed on a second embossing cylinder 112 of steel or other equivalent material.
  • a printing unit 113 (containing pigments) prints the tissue paper 107 at the second embossing roll 112.
  • the two folds 101 and 107 are then assembled by passing together between the first embossing roll 104 and a match roll 117.
  • the assembly here is of the "nested" type, that is to say that the protuberances formed on the fold 101 fit between the protuberances formed on the fold 107.
  • the advantage of the solution disclosed in this patent is to confine the pigments between the two plies and to synchronize the print pattern with the embossing pattern.
  • the Applicant has also developed a method of manufacturing products in format having a peripheral edge and a printing pattern.
  • glue is applied to a first ply along a defined glue pattern to form a seal along the edge of the product, a second ply of paper is applied to the first to form a partial bond, the assembly to a printing station where it is printed on one of its surfaces and the connection is completed by an embossing step.
  • This process makes it possible to produce products of good print quality thanks to the prior binding of the folds to one another, but it does not make it possible to print folds separately.
  • the applicant has set as its goal the production of cut products in tissues of the type handkerchief or towel of at least three folds, combining the advantages of a good combination of plies and decoration patterns that can be varied, and possibly colored differently on both sides of the products.
  • the invention has the double advantage sought. It makes it possible to associate the last fold with the others effectively by the second glue, while allowing, by the pattern of the second cylinder, to bring an additional decoration on the rear face of the final product.
  • the advantages induced by the process are also to obtain a product whose backside is smooth because it is not necessary to exert significant pressure by the second pressure cylinder.
  • the product remains flexible despite a deposit of glue on a large surface of the product.
  • the second cylinder can be etched according to a second etching pattern.
  • the glue is deposited on the third fold by means of an applicator roll, without prior embossing of the fold on the second roll.
  • This solution keeps the third fold its initial thickness and softness.
  • the glue is deposited on the third fold by means of an applicator roll the sheet having been previously embossed on the second roll.
  • This solution allows to vary the patterns in case some would not be printed satisfactorily without embossing.
  • it proceeds in such a way that the embossing leads to the formation of protuberances on the third fold of low height, in particular less than 0.1mm.
  • the first cylinder is etched in a pattern representing the periphery of a product cut in the format.
  • At least the glue applied to the third fold is colored.
  • the pattern corresponding to the glued surface is clearly visible on the finished product.
  • the second pressure cylinder has a hardness greater than that of the first cylinder.
  • a first sheet (or ply) 201 of cellulose wadding, single or double, is guided from a reel not shown, to an embossing unit comprising a first engraved cylinder 210 and a first pressure cylinder 212 of rubber or other material with the appropriate hardness.
  • the sheet is embossed by passing through the nip between the two cylinders 210 and 212.
  • the sheet is pressed against the first cylinder 210 which it matches the relief.
  • the engraving on the first cylinder 210 forms, for example, strips arranged in a square or rectangle in the manner of frames of a determined width, as reported in the applicant's patent EP 684132 .
  • a sizing unit 214 comprising an applicator roll 214 'deposits glue, preferably water based such as a polyvinyl glue, on the raised parts of the sheet pressed against the cylinder. 210 and whose form she marries.
  • glue preferably water based such as a polyvinyl glue
  • the cylinder then brings the sheet 201 to an area where it is accosted by a second sheet (or fold) 202, fed from a second reel for example of tissue paper.
  • the sheet 202 is itself accosted by a third sheet 203 of tissue paper, on its other side. This sheet 203 is also derived from a mother reel not shown.
  • the third sheet 203 is guided around a second cylinder 215 whose axis is coplanar with that of the first engraved cylinder 210, and having on the surface a printing pattern type pattern.
  • the second cylinder 215 preferably does not exert pressure on the first cylinder 210.
  • the third sheet 203 preferably a single ply, is glued by a second gluing unit 216 when in contact with the cylinder 215 .
  • the sheet 203 is not subjected to the pressure of a pressure cylinder before it passes between the second gluing unit 216 and the second engraving cylinder 215.
  • the pressure exerted by the gluing cylinder (not referenced) of the second gluing unit 216 is sufficient to transfer the glue to the portions of the third sheet 203 supported by the print pattern etched on the second cylinder 215.
  • the glue can be advantageously colored so that the pattern is visible on the finished product.
  • the third sheet 203 accost the sheet 202 in the region forming the gap between the first (210) and second (215) cylinders.
  • the three sheets 201, 202 and 203 thus superimposed are then subjected to the pressure of a marrying cylinder 218 disposed downstream, and the sheets are bonded together at this level.
  • the pattern engraved on the second cylinder 215 preferably comprises a zone which overlaps at least partially the pattern engraved on the first engraved cylinder 210 so that the glue provided by the second sizing unit 216 effectively participates in the connection of the third fold 203 on the second fold 202.
  • the amount of glue provided by the glue 216 then need not be important; it suffices that it allows the connection of the second fold 202 to the third fold 203.
  • the marrying cylinder 218 no longer needs to exert a significant pressure on the plywood sheet because the glue does not have to cross the thickness of a fold to ensure the binding of the plies.
  • the hardness of the marrying cylinder 218 is greater than that of the first pressure cylinder 212.
  • the first embossing cylinder may have a hardness of 60 shore while that of the pressure cylinder of 55 shore.
  • this embodiment also makes it possible to easily vary the pattern printed by the second engraved cylinder 215.
  • the technical constraints to make a so-called printing cylinder are much less than those required for the production of an embossing cylinder.
  • it is much freer to the extent that it does not fulfill any technical function related in particular to the softness, the thickness or the breaking strength of the sheet.
  • the second cylinder 215 may be smooth. It then cooperates with a cylinder of the gluing unit 216 which itself has a raised pattern.
  • a pressure cylinder (not shown) may be provided in order to perform an embossing upstream of the gluing of the third sheet 203.
  • the height of the protuberances formed by the pattern will be less than 0.1 mm.
  • FIG 4 an example of cut products according to the invention with a first common face A and a rear face whose decorations are different.
  • four different decorations B1, B2, B3, B4 have been represented, these four decorations being able to be made in different colors B'1, B'2, B'3 and B'4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Laminated Bodies (AREA)
  • Artificial Filaments (AREA)

Claims (10)

  1. Verfahren zum Herstellen eines mehrlagigen Zellulosefaserprodukts, umfassend die Schritte, wobei:
    - mindestens eine Lage (201) aus Zellulosefasermaterial auf einen Prägezylinder (210) aufgebracht wird, der Reliefs gemäß einem ersten Motiv aufweist, und es auf den Zylinder (210) mithilfe eines ersten Druckzylinders (212) geprägt wird,
    - der Klebstoff auf die ersten Reliefbereiche der Lage aufgetragen wird,
    - mindestens eine zweite Lage (202) auf die erste Lage aufgebracht wird,
    dadurch gekennzeichnet, dass es auch die Schritte umfasst, wobei:
    - eine dritte Lage (203) um einen zweiten Zylinder (215) angetrieben wird,
    - Klebstoff auf die dritte Lage (203) auftragen wird, die dritte auf die zweite Lage (202) aufgebracht wird und
    - die drei Lagen (201, 202, 203) mithilfe eines zweiten Druckzylinders (218), gestützt auf den ersten Prägezylinder (210), zusammengefügt werden.
  2. Verfahren nach Anspruch 1, wobei der zweite Zylinder (215) gemäß einem zweiten Motiv geprägt ist.
  3. Verfahren nach Anspruch 1, wobei der zweite Zylinder (215) glatt ist und der Klebstoff auf der dritten Lage (203) mithilfe eines Zylinders zur Anbringung einer Klebstoffeinheit (216), der ein Motiv in Relief aufweist, aufgebracht wird.
  4. Verfahren nach einem der vorhergehenden Ansprüche, wobei der Klebstoff auf der dritten Lage (203) mithilfe eines Zylinders zur Anbringung einer Klebstoffeinheit (216) ohne vorherige Prägung der Lage auf dem zweiten Zylinder (215) aufgetragen wird.
  5. Verfahren nach einem der Ansprüche 1 bis 3, wobei der Klebstoff auf der dritten Lage (203) mithilfe eines Zylinders zur Anbringung einer Klebstoffeinheit abgelegt wird, wobei die Folie im Voraus auf dem zweiten Zylinder geprägt wurde.
  6. Verfahren nach dem vorhergehenden Anspruch, wobei die Prägung auf der dritten Lage (203) zur Bildung von Vorsprüngen mit geringer Höhe, insbesondere geringer als 0,1 mm, führt.
  7. Verfahren nach einem der vorhergehenden Ansprüche, wobei der erste Zylinder (210) gemäß einem Motiv geprägt ist, das den Umfang eines Produktes darstellt, das im Format ausgeschnitten ist.
  8. Verfahren nach Anspruch 1, wobei mindestens der Klebstoff, der auf die dritte Lage (203) aufgebracht wird, farbig ist.
  9. Verfahren nach einem der vorhergehenden Ansprüche, wobei der zweite Druckzylinder (218) eine Härte aufweist, die höher als diejenige des ersten Druckzylinders (212) ist.
  10. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Produkt in Formaten ausgeschnitten wird.
EP05290711A 2004-04-09 2005-03-31 Verfahren zum Herstellen eines mehrlagigen Zellulosefaserprodukts Expired - Lifetime EP1584458B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0403750 2004-04-09
FR0403750A FR2868731B1 (fr) 2004-04-09 2004-04-09 Procede de fabrication d'un produit cellulosique fibreux multiplis

Publications (2)

Publication Number Publication Date
EP1584458A1 EP1584458A1 (de) 2005-10-12
EP1584458B1 true EP1584458B1 (de) 2010-03-17

Family

ID=34896735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05290711A Expired - Lifetime EP1584458B1 (de) 2004-04-09 2005-03-31 Verfahren zum Herstellen eines mehrlagigen Zellulosefaserprodukts

Country Status (5)

Country Link
EP (1) EP1584458B1 (de)
AT (1) ATE461035T1 (de)
DE (1) DE602005019937D1 (de)
ES (1) ES2342301T3 (de)
FR (1) FR2868731B1 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2698314B1 (fr) * 1992-11-24 1994-12-23 Kaysersberg Sa Produit stratifié en ouate de cellulose.
FR2707311B1 (fr) * 1993-07-09 1995-09-08 Kaysersberg Sa Papiers gaufrés multicouches, dispositif et procédure pour leur élaboration.
FR2775698B1 (fr) * 1998-03-06 2000-04-21 Fort James France Nouveau produit en papier absorbant comprenant trois plis et son procede de fabrication
IT1307887B1 (it) * 1999-06-18 2001-11-19 Perini Fabio Spa Metodo e dispositivo di goffratura per la produzione di materialenastriforme multivelo, e prodotto cosi' ottenuto.
ES2299237T3 (es) * 1999-08-31 2008-05-16 Georgia-Pacific France Producto de papel absorbente que comprende al menos tres pliegues y su procedimiento de fabricacion.
IT1314877B1 (it) * 2000-11-22 2003-01-16 Perini Fabio Spa Metodo e dispositivo per la produzione di un materiale cartaceo infoglio plurivelo e prodotto cosi'ottenuto

Also Published As

Publication number Publication date
DE602005019937D1 (de) 2010-04-29
ATE461035T1 (de) 2010-04-15
ES2342301T3 (es) 2010-07-05
FR2868731A1 (fr) 2005-10-14
EP1584458A1 (de) 2005-10-12
FR2868731B1 (fr) 2006-06-02

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