EP1908579A1 - Embossing-laminating unit, method of embossing a web material and embossed material - Google Patents

Embossing-laminating unit, method of embossing a web material and embossed material Download PDF

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Publication number
EP1908579A1
EP1908579A1 EP07425605A EP07425605A EP1908579A1 EP 1908579 A1 EP1908579 A1 EP 1908579A1 EP 07425605 A EP07425605 A EP 07425605A EP 07425605 A EP07425605 A EP 07425605A EP 1908579 A1 EP1908579 A1 EP 1908579A1
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EP
European Patent Office
Prior art keywords
protuberances
group
embossing
roller
tip
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.)
Withdrawn
Application number
EP07425605A
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German (de)
English (en)
French (fr)
Inventor
Mauro Gelli
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.)
Fabio Perini SpA
Original Assignee
Fabio Perini SpA
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 Fabio Perini SpA filed Critical Fabio Perini SpA
Publication of EP1908579A1 publication Critical patent/EP1908579A1/en
Withdrawn legal-status Critical Current

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    • 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
    • B31F2201/0707—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
    • 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
    • B31F2201/0758—Characteristics of the embossed product
    • B31F2201/0761—Multi-layered
    • B31F2201/0766—Multi-layered the layers being superposed tip to tip
    • 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 present invention relates to machines for processing web materials and more specifically for processing multi-ply web materials, such as, in particular, but not exclusively, materials made of tissue paper.
  • the invention relates to improvements to embossing or embossing-laminating units for processing plies of web material, in particular intended for use in the production of kitchen towels, toilet paper, paper handkerchiefs and napkins or similar disposable products.
  • Embossing is an operation consisting in the permanent deformation of plies of paper by passing the plies between an embossing roller made of substantially rigid material (such as steel) having protuberances, which cooperates with a counter roller or pressure roller.
  • the counter roller can be designed with a smooth yielding surface, for example made of rubber or the like, into which the surface of the embossing roller provided with protuberances is pressed.
  • the pressure roller can be formed by a roller provided with recesses coinciding with the protuberances of the embossing roller, so that the ply of paper or similar material, passing between the embossing roller and pressure roller, is deformed between protuberances and recesses to undergo permanent deformation that results into a plurality of protuberances on the ply.
  • embossing is implemented both to provide the product with specific decorative motifs and give it specific technical characteristics, in particular apparent thickness, softness and absorption capacity. Embossing is also utilized to define limited regions of the web material on which to apply a glue, used to reciprocally bond two or more plies. Bonding of the plies is typically performed by laminating the two or more plies between two embossing rollers disposed one against the other, or between an embossing roller and a marrying roller.
  • Embossing and embossing-laminating techniques have been developed in substance from two embossing principles, commonly called tip-to-tip and nested.
  • two or more plies of web material are embossed separately by passing them between a respective embossing roller and a pressure roller or counter-roller.
  • the two separately embossed plies are then bonded in the nip between the two embossing rollers, in which the protuberances of the one coincide with the protuberances of the other. More precisely, the front surfaces of the protuberances of one embossing cylinder or roller coincide with front surfaces of the protuberances of the opposed roller.
  • two or more plies are embossed separately between a respective embossing roller an a respective pressure roller.
  • One of the two plies is detached from the respective embossing roller and placed on top of the other ply which is still in contact with the protuberances of the respective embossing roller on which it was decorated and processed.
  • a glue is applied to the projections or protuberances produced on the ply that remains in contact with the surface of the respective embossing roller for the longest time.
  • the two plies are bonded by lamination between the embossing roller and a marrying roller.
  • An example of this type of embossing is described in WO-A-01/23172 . In the nip between the embossing rollers there is no reciprocal contact between the protuberances of the one and of the other of the two rollers and consequently the plies are not laminated.
  • embossing-laminating units capable of alternatively processing according to one or other of the two techniques described schematically above, through adjustment of the reciprocal angular and/or axial position of the two embossing rollers and through activation or deactivation of a laminating roller.
  • An example of an embossing laminating device of this type is described in WO-A-98/53985 .
  • embossing-laminating units have been developed with specific characteristics as regards the type of processing, the pattern produced by the two embossing rollers, the reciprocal configuration of the protuberances on the two plies and the like.
  • Embossing represents a particularly critical processing operation, as on the one hand it must provide the finished product with specific aesthetic characteristics and on the other it must satisfy specific technical requirements, to be found not only in the thickness, softness and absorption properties of the two plies, but also in the distribution of an adequate, but not excessive quantity of glue to bond the plies one on top of the other without the formation of excessively stiff regions and without the risk of accidentally detaching the plies during use or storage.
  • An object of an embodiment of the invention is to provide an embossing-laminating unit that makes it possible to obtain improved specific aesthetic and/or technical characteristics of the material with respect to those obtainable with conventional embossing-laminating units.
  • the embossing-laminating unit comprises: a first embossing roller comprising a cylindrical surface provided with protuberances and cooperating with a first pressure roller; a second embossing roller comprising a cylindrical surface provided with protuberances and cooperating with a second pressure roller, said first embossing roller and said second embossing roller defining a lamination nip therebetween.
  • the protuberances on the first and on the second embossing roller are disposed so that in said lamination nip some protuberances are disposed in tip-to-tip configuration and some are disposed in nested configuration.
  • a multi-ply web material is obtained wherein some regions of the material have tip-to-tip embossing and others have nested embossing.
  • the protuberances in tip-to-tip configuration are surrounded by protuberances in nested configuration.
  • the embossing-laminating unit comprises a laminating roller cooperating with the first embossing roller.
  • the laminating roller has recesses coinciding with the protuberances of the first embossing roller which, in the lamination nip, are phased tip-to-tip with corresponding protuberances of the second embossing roller. In this way compression of the tip-to-tip bonded protuberances is avoided.
  • the first embossing roller comprises a first group of protuberances which, in the lamination nip, are disposed in tip-to-tip configuration with corresponding protuberances of a second group of protuberances on said second embossing roller.
  • the first embossing roller also comprises a third group of protuberances which in said lamination nip are disposed at least in part in nested configuration with respect to a fourth group of protuberances on said second embossing roller.
  • all the protuberances of the first embossing roller can be of the same height and analogously also the protuberances of the second embossing roller can be of the same height.
  • the protuberances of the embossing roller arranged in tip-to-tip configuration in the lamination nip with respect to the corresponding protuberances of the other embossing roller can have a different height with respect to the protuberances arranged in nested configuration.
  • the protuberances that generate tip-to-tip embossing can be of a greater height than the protuberances that generate the nested embossing, or vice versa.
  • the embossing-laminating group can comprise a glue dispenser cooperating with one or other of the embossing rollers, preferably with the first embossing roller.
  • the embossing-laminating unit comprises two glue dispensers, associated with the same embossing roller or with two different embossing rollers.
  • the glues of the two dispensers can be of different color and the glue applicator rollers can be plate rollers to apply the glue according to a pattern, i.e. only to some protuberances.
  • plate rollers can be provided which apply the glue only to the protuberances that give rise to tip-to-tip bonding of the plies, or only to protuberances that give rise to nested bonding.
  • glues of different colors are applied to the two types of protuberances, preferably with two different glue dispensers.
  • the protuberances in tip-to-tip configuration define one decorative motif, while the protuberances arranged in nested configuration give rise to a background embossing, having a prevalently technical rather than aesthetic and decorative function.
  • the invention also relates to a multi-ply web material.
  • the web material comprises at least a first embossed ply and a second embossed ply bonded together by gluing, characterized in that the said two plies comprise a plurality of protuberances arranged in tip-to-tip configuration and a plurality of protuberances arranged in nested configuration.
  • the protuberances arranged in tip-to-tip configuration are bonded together by gluing.
  • the protuberances arranged in tip-to-tip configuration form a repetitive pattern and elements of said repetitive pattern can be surrounded by protuberances arranged in nested configuration, which for example form a background embossing.
  • the web material is provided with particular aesthetic prestige, due to the fact that the decorative embossing is made to stand out with respect to the background embossing.
  • the first ply comprises a first group of protuberances projecting towards the inside of the web material and at least some of which are arranged in tip-to-tip configuration coinciding with the protuberances of a second group of protuberances on the second ply, projecting on the inside of the web material.
  • the first ply comprises a third group of protuberances and the second ply comprises a fourth group of protuberances, the protuberances of the third and of the fourth group facing the inside of the web material and being arranged at least partially in nested configuration with respect to each other.
  • an embossing-laminating unit typically comprises a first embossing roller 1 and a second embossing roller 3 arranged so as to define a lamination nip 5 therebetween.
  • the first embossing roller 1 cooperates with a pressure roller 7 which is preferably coated with a layer of yielding material 7A, such as rubber or the like.
  • the embossing roller 3 cooperates with an analogous pressure roller 9, also preferably coated with a layer of yielding material 9A.
  • the dispenser unit 11 has a glue reservoir 13, an anilox roller 15 that picks up glue from the reservoir 13 and a plate roller 17 that applies the glue received from the anilox roller 15 to the protuberances of a first ply V1 of web material embossed between the embossing roller 1 and the pressure roller 7.
  • a marrying roll 19 is also arranged along the circumferential extension of the first embossing roller 1, positioned (with respect to the direction of rotation of the embossing roller 1) downstream with respect to the nip 5 formed between the embossing rollers 1 and 3.
  • the marrying roll 19 is coated with a layer of rubber 19A typically stiffer than the coating 7A and 9A of the pressure rollers 7 and 9 respectively.
  • V2 indicates a second ply of web material, which is fed around the pressure roller 9 and embossed between the latter and the embossing roller 3.
  • the two plies V1 and V2 can in turn be formed of several plies bonded to one another, and/or a third ply or several plies can be fed therebetween directly in the nip 5 between the embossing rollers 1 and 3.
  • a first series or group of protuberances 1A is provided on the cylindrical surface of the embossing roller 1, having a front surface S which, in the lamination nip 5 between embossing rollers 1 and 3, coincides with a front surface S' of corresponding protuberances 3A of a second group of protuberances provided on the cylindrical surface of the embossing roller 3.
  • the distance between the centers of the embossing rollers 1 and 3 is such that sufficient pressure is exerted between the front surfaces S and S' of the protuberances 1A and 3A of the first and of the second group of protuberances to cause gluing of the plies V1 and V2, which are laminated between the embossing rollers 1 and 3. Gluing is obtained due to the fact that the roller 17 of the glue dispenser 11 applies a certain quantity of glue to the surface portions of the ply V1, which coincide with the protuberances 1A.
  • the glue distributed on the front surfaces S of the protuberances 1A of the first group causes reciprocal adhesion of the two plies V1 and V3 at the protuberances 1A, 3A as a result of the reciprocal pressure exerted between the embossing rollers 1 and 3.
  • a second series or group of protuberances 1 B preferably of the same height as the protuberances 1A of the first group, is provided on the cylindrical surface of the embossing roller 1.
  • the material forming the ply V1 is consequently deformed to generate thereon protuberances P B and P A coinciding with the protuberances 1 Band 1A of the embossing roller 1.
  • a layer of glue is applied to the front surface of the protuberances or projections P B , formed as a result of embossing the ply V1 between the pressure roller 7 and the embossing roller 1, in the same manner as the glue applied to the front surface of the protuberances or projections P A produced in the group V1 by the pressure of the protuberances 1A against the yielding surface 7A of the pressure roller 7.
  • a fourth group of protuberances 3B is also provided, which in the lamination nip are arranged in nested configuration with respect to the second group of protuberances 1 B of the first roller 1, i.e. the protuberances 3B coincide with the recesses between protuberances 1 B.
  • the protuberances 3B are substantially the same as the protuberances 3A.
  • a glue is applied by the dispenser 11 to the front surface of the projections or protuberances P B of the ply V1 embossed by the embossing roller 1.
  • this glue is used to glue the plies V1 and V2 together. In this case gluing takes place as a result of lamination between the first embossing roller 1 and the marrying roll 19.
  • the two plies V1 and V2 embossed with the protuberances P' B on the ply V2 inserted in the recesses between the protuberances P B of the ply V1 pass through the nip 20 defined between the rollers 1 and 19.
  • the laminating roller or marrying roll 19 has a surface provided with recesses which during operation is in phase with, i.e.
  • Figure 5 shows by way of example a portion of web material formed of the plies V1, V2 obtained after lamination between the embossing roller 1 and the marrying roll 19.
  • Figure 5 shows a greatly enlarged and schematic cross section of the web material N. The position taken by the recess or recessed region 19B of the marrying roll 19, with respect to the web material during lamination between the rollers 19 and 1, is indicated with a broken line 19X.
  • the recess 19X is positioned coinciding with the protuberances P A , P' A , so that the protuberance P' A is not compressed by the laminating roller, while the bottom of the recesses between the protuberances P' B is pressed against the front surface of the protuberances P B , when these are still engaged on the corresponding protuberances 1 B of the embossing roller 1, to prevent compression of the protuberances P B .
  • the height of the protuberances 1A, 3A, 1B, 3B can differ with respect to that shown.
  • protuberances 1B of a lesser or greater height with respect to the protuberances 1A can be provided.
  • the protuberances 3B with respect to the protuberances 3A can be provided.
  • the protuberances 1 B and 3B can differ in height from each other and/or differ in height within the same group, i.e. for the protuberances 1B to be of different heights and similarly for the protuberances 3B to be of different heights according to the processing requirements of the web material V1, V2.
  • the height of the protuberances also depends on the need to distribute the glue according to particular motifs dictated by aesthetic and/or functional requirements.
  • the protuberances 1A, 3A will be greater in height than the protuberances 1B, 3B.
  • the former will normally be utilized to define decorative elements with large surfaces, for example defined by one or more projections with linear extension, while the protuberances 1B, 3B of the third and fourth group of protuberances will have a structure with a prevalently simple geometrical shape, such as truncated-cone or truncated-pyramid shaped.
  • these protuberances 1B, 3B preferably form a background decoration, the purpose of which is to make the embossed pattern formed by the protuberances 1A, 3A stand out.
  • Linear protuberances are intended as protuberances with a width substantially less than the length, i.e. the dimension calculated along the linear extension of the protuberances.
  • protuberances 1A, 3A with a width in the order of 0.1-3 mm, preferably 0.5-1.5 mm and with a length in the order of 0.5-50 mm, preferably 2-25 mm can be provided.
  • the protuberances 3A can be composite, in the sense that several protuberances even of complex shape define a single decoration surrounded by background protuberances 1B, 3B.
  • Figure 6 shows by way of example a possible type of decoration obtainable with combined "nested" and "tip-to-tip” embossing as described above.
  • the floral pattern is formed by a set of protuberances P A of the ply V1 and/or protuberances P' A of the ply V2. This floral pattern is surrounded by an unembossed region, and by protuberances P B or P' B .
  • the protuberances P A (P' A ) have larger dimensions, and have an elongated form
  • the protuberances P B (P' B ) have a geometrical form, for example truncated-cone or truncated-pyramid shaped and small dimensions, to form a background decoration or embossing providing the product with prevalently technical characteristics.
  • colored glues can be used, which can be distributed with plate rollers if necessary by means of more than one dispensing unit 11.
  • two glue dispensing units with plate roller it is possible to apply a glue of one color to the protuberances 1A and a glue of a different color to the protuberances 1B.
  • Figure 10 schematically shows an embossing-laminating unit analogous to the one in Figure 1, but with two glue dispensing units, indicated with 11A and 11B.
  • the components of the glue dispensing units 11A, 11B are indicated with 13A, 13B; 15A, 15B; 17A, 17B. It would also be possible to arrange a dispensing unit 11A at the roller 1 and a dispensing unit 11B at the second roller 3. In this case, the dispensing unit 11A applies the glue to the protuberances 1B, while the dispensing unit 11B applies the glue to the protuberances 3A. In an advantageous embodiment, the two glues dispensed from the two dispensing units 11A, 11B are of different colors.
  • Figure 7 shows an enlarged local cross section (analogous to the section in Figure 5) of a web material N obtained with an embossing laminating unit in a modified embodiment.
  • the same numbers indicate the same or equivalent parts to those in Figure 5.
  • the glue C is only applied to the protuberances P A , P' A , while the protuberances P B and P' B are smaller in height and without glue. In this case it is not necessary to utilize the marrying roll 19.
  • the laminating roller 19 is utilized to laminate the plies V1, V2 in the areas in which the glue C has been applied to the front surfaces of the protuberances P B , while in both cases ( Figure 5 and Figure 7) the glue on the protuberances P A , P' A is compressed in the nip 5 between the rollers 1, 3.
  • Figure 8 shows a schematic local section of a web material N in a modified embodiment, wherein the protuberances of larger dimension are arranged in nested configuration and the protuberances of smaller dimension are in tip-to-tip configuration.
  • Figure 9 shows a schematic local cross section of a web material N according to a further embodiment of the invention.
  • the protuberances 1 B of the embossing roller 1 are greater in height than the protuberances 1A and consequently the protuberances P B are greater in height (deeper) than the protuberances P A .
  • the height of the protuberances P B is indicated with H and the height of the protuberances P A with H'.
  • the web material N will therefore have two faces with different patterns, or more precisely characterized by a different marking of the protuberances P A with respect to the protuberances P' A , but the production thereof will be simplified by the lack of angular phasing of the marrying roll 19 with respect to the embossing rollers 1, 3.
EP07425605A 2006-10-04 2007-10-01 Embossing-laminating unit, method of embossing a web material and embossed material Withdrawn EP1908579A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITFI20060243 ITFI20060243A1 (it) 2006-10-04 2006-10-04 Goffratore laminatore, metodo di goffratura di un materiale nastriforme e materiale goffrato

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EP1908579A1 true EP1908579A1 (en) 2008-04-09

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1970193A2 (en) * 2007-03-09 2008-09-17 Fabio Perini S.p.A. Embossed sheet material, embossing unit and method for the production
EP2353857A1 (en) * 2010-01-29 2011-08-10 Chan Li Machinery Co., Ltd. Web product embossing apparatus
US20150298420A1 (en) * 2012-11-16 2015-10-22 Sca Hygiene Products Ab Method for embossing a multi-ply paper product and an embossed multi-ply paper product
WO2015186052A1 (en) * 2014-06-05 2015-12-10 Kimberly-Clark Worldwide, Inc. Process and apparatus for embossing tissue plies
EP2955016A1 (en) * 2014-06-09 2015-12-16 Gambini International S.A. Improved multilayer sheet
DE102014009320A1 (de) * 2014-06-27 2015-12-31 Metsä Tissue Oyj Vorrichtung zur Herstellung von Flächenprodukten
WO2016030784A1 (en) * 2014-08-29 2016-03-03 Delicarta S.P.A. Embossed multilayered cellulose product and means for the production thereof
EP3858593A1 (de) * 2020-01-28 2021-08-04 Matthews International GmbH Vorrichtung und verfahren zum mehrfarbigen verleimen von zumindest zweilagigen tissueprodukten
EP3677422B1 (en) 2017-08-31 2022-11-30 Daio Paper Corporation Sanitary tissue paper

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US4320162A (en) 1980-05-15 1982-03-16 American Can Company Multi-ply fibrous sheet structure and its manufacture
GB2376436A (en) * 2001-06-15 2002-12-18 Sca Hygiene Prod Gmbh Multi-ply tissue paper and method for producing same.
US6551691B1 (en) * 1999-08-31 2003-04-22 Gerogia-Pacific France Absorbent paper product of at least three plies and method of manufacture
US20030102096A1 (en) * 2001-04-27 2003-06-05 Georgia-Pacific Corporation Soft bulky multi-ply product and method of making the same
US20030118782A1 (en) * 2001-02-23 2003-06-26 Pierre Graff Sheet of creped and embossed absorbent paper, an embossing roll for one such sheet and an embossing method
US20030198788A1 (en) * 2002-02-26 2003-10-23 Anders Andersson Method and device for producing a multi-ply web of flexible material, such as paper and nonwoven, and multi-ply material produced by the method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4320162A (en) 1980-05-15 1982-03-16 American Can Company Multi-ply fibrous sheet structure and its manufacture
US6551691B1 (en) * 1999-08-31 2003-04-22 Gerogia-Pacific France Absorbent paper product of at least three plies and method of manufacture
US20030118782A1 (en) * 2001-02-23 2003-06-26 Pierre Graff Sheet of creped and embossed absorbent paper, an embossing roll for one such sheet and an embossing method
US20030102096A1 (en) * 2001-04-27 2003-06-05 Georgia-Pacific Corporation Soft bulky multi-ply product and method of making the same
GB2376436A (en) * 2001-06-15 2002-12-18 Sca Hygiene Prod Gmbh Multi-ply tissue paper and method for producing same.
US20030198788A1 (en) * 2002-02-26 2003-10-23 Anders Andersson Method and device for producing a multi-ply web of flexible material, such as paper and nonwoven, and multi-ply material produced by the method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1970193A2 (en) * 2007-03-09 2008-09-17 Fabio Perini S.p.A. Embossed sheet material, embossing unit and method for the production
EP1970193A3 (en) * 2007-03-09 2013-08-28 Fabio Perini S.p.A. Embossed sheet material, embossing unit and method for the production
EP2353857A1 (en) * 2010-01-29 2011-08-10 Chan Li Machinery Co., Ltd. Web product embossing apparatus
US20150298420A1 (en) * 2012-11-16 2015-10-22 Sca Hygiene Products Ab Method for embossing a multi-ply paper product and an embossed multi-ply paper product
WO2015186052A1 (en) * 2014-06-05 2015-12-10 Kimberly-Clark Worldwide, Inc. Process and apparatus for embossing tissue plies
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