EP1478507B1 - 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 - Google Patents

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 Download PDF

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Publication number
EP1478507B1
EP1478507B1 EP03713128A EP03713128A EP1478507B1 EP 1478507 B1 EP1478507 B1 EP 1478507B1 EP 03713128 A EP03713128 A EP 03713128A EP 03713128 A EP03713128 A EP 03713128A EP 1478507 B1 EP1478507 B1 EP 1478507B1
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EP
European Patent Office
Prior art keywords
glue
web
ply
pattern
roll
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
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EP03713128A
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German (de)
English (en)
French (fr)
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EP1478507A1 (en
Inventor
Anders Andersson
Eva-Li SAARVÄLI
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Essity Hygiene and Health AB
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SCA Hygiene Products AB
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Publication of EP1478507A1 publication Critical patent/EP1478507A1/en
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Classifications

    • 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
    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/593—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
    • 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
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/16—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length only at particular parts of the work
    • B05C1/165—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length only at particular parts of the work using a roller or other rotating member which contacts the work along a generating 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
    • B31F2201/0707—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
    • B31F2201/0758—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
    • B31F2201/0769—Multi-layered the layers being shifted
    • 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
    • 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
    • B31F2201/0792—Printing

Definitions

  • the present invention refers to a method for producing a multi-ply web of flexible material, such as paper and nonwoven material, by means of gluing the plies. Especially it refers to production of tissue products such as toilet and kitchen paper, paper towels, handkerchiefs, wiping material and the like.
  • the invention further refers to a multi-ply web of flexible material, such as paper and nonwoven, comprising at least a first and a second ply, which are interconnected by means of gluing in a glue pattern.
  • the invention also refers to a product made from the multi-ply web.
  • the lamination of two or more tissue plies is often made by means of gluing.
  • a mechanical embossing of the plies is also often performed before they are glued together. It is further known to laminate two plies only by means of a mechanical embossing, at which a mechanical joining of the plies occurs in the embossing sites.
  • EP-A-796 727 it is known to first emboss two paper plies in a three dimensional structure with alternating raised and recessed portions, after which glue is applied to one of the plies and the two plies are joined in a press nip between two embossing rolls, so that the raised portions of the respective plies are glued to each other.
  • a similar embossing procedure is shown in EP-A-738 588, according to which the glue also has a colouring effect.
  • US-A-3,672,950 discloses a method for producing a quilted or cushioned adhesively laminated tissue product in which glue is applied in a certain pattern to one tissue ply in a press nip between a first pattern roll and an impression roll. This ply is laminated to another ply in a press nip between the same impression roll and a second pattern roll having a pattern corresponding with that of the first pattern roll.
  • the first and second pattern rolls are driven in registry so that pressure is applied substantially only to the adhesive-bearing regions of the plies.
  • the two plies are in different conditions of stress during the lamination process, so that a quilted or cushioned product is provided.
  • the object of the present invention is to provide a method for producing a multi-ply web of flexible material, such as paper and nonwoven, and combinations thereof, wherein at least two plies of flexible material are laminated together by gluing.
  • the lamination should be lenient to the material so that its strength properties are substantially maintained.
  • the absorbent capacity and bulk of the finished product should moreover be high.
  • the method should provide a freedom to use different glue patterns for strength and/or aesthetical reasons.
  • the method comprises: transferring glue in subsequent steps to a first web shaped flexible material by means of at least two glue transfer rolls each having a three dimensional pattern of alternating raised and recessed portions in first and second press nips respectively, in a pattern corresponding to the shape and configuration of said raised portions; bringing a second web shaped flexible material in contact with the glue bearing side of said first web shaped flexible material in at least one further press nip between at least one patterned lamination roll and an impression roll, said at least one patterned lamination roll having a three-dimensional pattern of alternating raised and recessed portions having a shape and configuration so as to apply pressure to the combined first and second web shaped materials substantially only just opposite at least some of the glue bearing areas of the first web shaped material, wherein the at least one patterned lamination roll is driven in registry with the first and/or second glue transfer roll.
  • the three-dimensional pattern of the first patterned glue transfer roll is different from that of the second patterned glue transfer roll.
  • At least two patterned lamination rolls are provided, wherein the first lamination roll has a three-dimensional pattern of alternating raised and recessed portions having a shape and configuration corresponding to the pattern of one of said glue transfer rolls, and the second lamination roll has a three-dimensional pattern of alternating raised and recessed portions having a shape and configuration corresponding to the pattern of another of said glue transfer rolls.
  • one patterned lamination roll having a three-dimensional pattern of alternating raised and recessed portions having a shape and configuration corresponding to the patterns of both the first and second glue transfer rolls.
  • coloured glue is applied to the first web shaped material by at least one of the patterned glue transfer rolls.
  • Glues of different colour or tint may, in a further aspect of the invention, be applied by the first and second patterned glue transfer rolls respectively.
  • At least one of the web shaped materials is before lamination with the opposite web shaped material exerted to a three dimensional patterning provided on the web shaped material while being formed wet, during drying of the wet material and/or in a dry state.
  • At least two plies before lamination is exerted to a three dimensional patterning, the patterns provided on the at least two plies having different structures, for example one pattern being relatively fine and another pattern being relatively coarse.
  • At least one ply is reinforced with strings of glue or curing bonding agent, for example latex. Said curing agent is cured after lamination.
  • the patterns of the glue transfer rolls are chosen so that glue is applied to said first ply in an amount corresponding to between 0.03 and 9%, preferably between 0.1 and 6% of the total surface area of the respective ply.
  • the invention further refers to a multi-ply web of flexible material, such a paper and nonwoven, comprising at least one first and one second ply which are interconnected by gluing in glue sites forming a glue pattern wherein the plies are glued together by at least two glue patterns which are different as to shape and/or colour.
  • each glue site amounts to between 0.15 and 150mm 2 , preferably between 0.5 and 100mm 2 and more preferably between 1 and 15 mm 2 .
  • each glue site amounts to between 150 and 400 mm 2 .
  • the glue sites take up a total area of between 0.03 and 9%, preferably between 0.1 and 6% of the total surface area of the respective ply.
  • the glue in at least some of the glue sites is coloured. There may further be provided glue sites of different colour or tint.
  • At least one of the plies has a three-dimensional pattern provided before joining with the opposite ply.
  • spots refers to any shape of the glue sites, such as small points, lines or any desired geometrical shape.
  • Fig. 1 shows a device for producing a two-ply material, e g paper, especially tissue paper.
  • a first paper web 1 is fed over a roll 2 towards a first glue application station.
  • This comprises a first glue chamber 3 from which glue is applied on a first glue roll 4.
  • the first glue roll 4 is in contact with a first patterned glue transfer roll 5, which along its periphery is provided with a pattern of alternating raised 6 and recessed portions 7.
  • the first glue roll 4 is only contacting the tops of the raised portions 6, so that glue is only applied thereon.
  • the paper web 1 is passed into a press nip 8 between the first patterned glue transfer roll 5 and a centrally placed impression roll 9.
  • Glue will thus be applied to the first paper web 1 in a pattern corresponding to the configuration of the tops of the raised portions 6.
  • the pressure in the press nip between the first patterned glue transfer roll 5 and the impression roll 9 is only sufficiently high to accomplish a transfer of glue to the paper web 1.
  • a second glue application station is further provided.
  • This comprises a second glue chamber 10 from which glue is applied on a second glue roll 11.
  • the second glue roll 11 is in contact with a second patterned glue transfer roll 12, which along its periphery is provided with a pattern of alternating raised 13 and recessed portions 14. Said pattern is preferably different from that of the first patterned glue transfer roll 5.
  • the second glue roll 11 is only contacting the tops of the raised portions 13, so that glue is only applied thereon.
  • the paper web 1 is passed into a second press nip 15 between the second patterned glue transfer roll 12 and the centrally placed impression roll 9. Glue will thus be applied to the first paper web 1 in a pattern corresponding to the configuration of the tops of the raised portions 13.
  • the pressure in the press nip between the second patterned glue transfer roll 12 and the impression roll 9 is only sufficiently high to accomplish a transfer of glue to the paper web 1. However there should preferably be no deformation of the paper web, i e no or only slight impression of the raised portions 6 of the second patterned glue transfer roll 12 into the paper web.
  • a second paper web 16 is fed over a roll 17 and into a third press nip 18 between a first patterned lamination roll 19 and the centrally placed impression roll 9.
  • the first patterned lamination roll 19 has a three dimensional pattern of raised 20 and recessed portions 21 corresponding to the pattern of the first patterned glue transfer roll 5.
  • the term "corresponding to” in this respect means that the raised portions 20 either have the same shape and size of the effective surface area as the raised portions 6 of the first pattern roll 5, the same shape but a larger effective surface area than the raised portions 6 of the first glue transfer roll 5 so as to extend outside the outer circumference of the glue sites provided by the first glue transfer roll 5 or a different shape and a larger effective surface area than the raised portions 6 of the first glue transfer roll 5.
  • a glue pattern provided by the first transfer roll 5 may be in the form of groups of three dots arranged in a triangular configuration, wherein the raised portions 20 of the first lamination roll 19 may either be exactly the same as or slightly larger than the glue pattern, or may for example be in the form of a triangle covering the three dots. In all these cases the relative position of the pattern on the two pattern rolls 5 and 19 are in correspondence with each other.
  • Fig. 4 a and b shows two glue patterns, one in the form of three dots arranged in a triangular configuration 30 and the other in the form of dots forming a checked patter 31.
  • Fig. 4b shows an example of patterns 30a and 30b that may be used on the lamination rolls, said patterns corresponding to and covering the glue patterns.
  • Fig. 4c shows the glue patterns 30, 31 and lamination patterns 30a, 30b in superposed position.
  • a second lamination station is further provided comprising a fourth press nip 23 between a second patterned lamination roll 22 and the centrally placed impression roll 9.
  • the second patterned lamination roll 22 has a three dimensional pattern of raised 24 and recessed portions 25 corresponding to the pattern of the second patterned glue transfer roll 12. This means that the two patterns either are identical as to size and shape or that the pattern of the second lamination roll 22 is slightly larger than and thus covers a somewhat larger area than the pattern of the second glue transfer roll 12, in the same way as explained above.
  • the second patterned glue transfer roll 12 and the second patterned lamination roll 22 are driven in registry with each other so that the first and second paper webs 1 and 16 are pressed and glued together in a pattern corresponding to the configuration of the tops of the raised portions 24 of the second patterned lamination roll 22.
  • only one lamination roll is provided, which has a three-dimensional pattern of alternating raised 20 and recessed portions 21 having a shape and configuration corresponding to the patterns of both the first and second glue transfer rolls 5 and 12.
  • This lamination roll is driven in registry with both the first and second glue transfer rolls 5 and 12.
  • the pattern on the two glue transfer rolls 5 and 12 can be optional, but should be chosen so that glue is applied to the paper web 1 in an amount corresponding to between 0.03 and 9%, preferably between 0.1 and 6% the total surface area of the paper web 1.
  • the glue sites are sparsely distributed over substantially the entire area of the laminated product. It is with the method according to the invention possible to provide a very distinct positioning of the glue sites, wherein a very small amount of glue is needed. This means advantages with respect to softness, drapability, absorption etc.
  • the number of glue sites per area unit should amount to between 25 and 350000 glue sites per m 2 , preferably between 300 and 180000 glue sites per m 2 and more preferably between 800 and 50000 glue sites per m 2 .
  • the size of each glue site should amount to between 0.15 and 150mm 2 , preferably between 0.5 and 100mm 2 and more preferably between 1 and 15 mm 2 .
  • the size of each glue site amounts to between 150 and 400 mm 2 , which applies for certain composite glue patterns comprising thin lines, e g 1 mm in width, forming for example a symbol or a figurative pattern. In such an embodiment the number of glue sites per m 2 will be in the lower part of the above interval, for example less than 800.
  • each glue pattern unit is built up of a plurality of small screen dots.
  • the size of the glue site in this case is defined as the circumscribed area of the combination of screen dots forming a glue pattern unit.
  • the glue pattern is composed of continuous lines forming for example a network.
  • Preferred glues are the ones commonly used for paper, such as carboxy methyl cellulose (CMC), polyvinyl alcohol (PVOH), ethylene vinyl acetate (EVA), polyvinyl acetate (PVAc), ethylene acrylic acid, vinyl acetate acrylic acid, styrene acrylic acid, polyurethane, polyvinylidene chloride, starch, chemically modified starch, dextrin, water soluble polymers such as latexes and milky colloids in which natural or synthetic rubber or plastic is suspended un water.
  • CMC carboxy methyl cellulose
  • PVOH polyvinyl alcohol
  • EVA ethylene vinyl acetate
  • PVAc polyvinyl acetate
  • ethylene acrylic acid vinyl acetate acrylic acid
  • styrene acrylic acid polyurethane
  • polyvinylidene chloride starch
  • dextrin water soluble polymers
  • glues suited for these materials are of course chosen.
  • glues having a relatively high dry content are used, since this enables a distinct positioning of the glue sites.
  • Coloured glues may also be used, which gives a shading effect and therewith a patterning effect to the material.
  • one of the glue patterns is chosen so as to provide a desired bonding strength and adhesion between the plies, while the other glue pattern is chosen to provide an aesthetical effect.
  • the first glue may be colourless while the second glue is coloured.
  • Glue with different colours may also be used for the different patterns. Both patterns may of course be chosen to provide an aesthetical appearance. Any optional patterns may be used, such as dot patterns, straight or curved lines, geometrical figures, fantasy figures, logotypes, text, letters etc.
  • the glue sites may also be in the form of continuous lines for example forming a network pattern. In Fig. 4 a dot pattern is indicated with the numeral 30 and a figurative pattern is indicated with the numeral 31.
  • Fig. 3 there is shown an example of a two-ply paper 26 produced according to the invention, at which the glue sites between the two paper plies 1 and 16 are denoted 27. Between the glue sites 27 the paper plies 1 and 16 are free and separated from each other and empty spaces 28 are created which increase the bulk and absorption capacity of the material, properties that are important for e g soft absorbent paper.
  • the second paper web 16 can just opposite the glue sites have slight compacting impressions 29 caused by the laminating patterned rolls 19 and 22.
  • the impressions 29 shown in the drawings are also a result of that the ply 16 between the glue sites 27 will bulge slightly from the first ply 1.
  • One or both of the patterned glue transfer rolls 5 and 12 as well as one or both of the patterned lamination rolls 19 and 22 may be supported in such a way that they can easily be swung out of and into operative position.
  • the patterned surface on the rolls 5, 12, 19, 22 may preferably be provided in the form of exchangeable sleeves, which involves a quick possibility of changing pattern.
  • the pressure should be low but sufficiently high to provide a gluing together of the two paper webs 1 and 10.
  • the laminated two-ply product is denoted 26.
  • the web tension of said first and second plies 1 and 16 are preferably substantially equal as they are fed into the second press nip 12. Herewith there will be no foreshortening effect from the lamination.
  • only one lamination roll 19 is provided, which has a pattern corresponding to one of the first or second glue transfer rolls 5 or 12, while pressure is not applied by any lamination roll to the glue pattern provided by the other of said first or second glue transfer rolls 5 or 12.
  • pressure may be applied only to the strength-providing glue pattern.
  • first and/or second paper webs 1 and 16 may each comprise two or more plies, so that a laminated product 26 with three or more plies is formed.
  • more glue and/or a higher pressure in the lamination step may be needed as compared to when laminating only two plies.
  • a printing unit 33 may be arranged after the second lamination station for printing a pattern onto one side of the laminated product 26.
  • the paper webs 1 and 16 that are laminated can either be flat but also have a three-dimensional structure provided earlier in the process, for example during forming, dewatering and/or drying of the paper web.
  • a three-dimensional structure may also be provided, by embossing the dry paper webs before lamination.
  • the method according to the invention is very lenient to such a pattern, so that this is maintained substantially intact during the laminating process.
  • Other important advantages of the invention are that the paper substantially maintains its strength properties through the process, which in many other lamination processes in which an embossing and deformation of the paper webs occur in connection with lamination, are lost.
  • Fig. 5 shows an embodiment of a three-ply paper in which the plies 1, 16 and 32 before lamination have been exerted to a three dimensional patterning, for example embossing.
  • the structures of the embossing patterns are different, so that the pattern structure of the middle ply 16 is coarser than that of the two outer plies 1 and 32.
  • a high-bulk product is then obtained.
  • the glue sites 27 between plies 1 and 16 may, as disclosed, be applied offset with respect to the glue sites between plies 16 and 32, or be applied just opposite each other. Other combinations of different embossing patterns may of course be used than what is shown in Fig. 5.
  • Multi-ply products having different structures on opposite sides may be created if the two outer plies have different embossing structures, such as one coarser side and one smoother side. So called micro quilted embossing patterns may also be used.
  • One or more plies may further be unembossed. In the case of a two-ply product a two-sided product is obtained if one ply is embossed and the other unembossed or have a different embossing structure.
  • the embossing patterns used for the different layers may also be the same.
  • the plies may be embossed jointly and then separated from each other before being laminated by the method according to the invention. They may also be separately embossed before lamination.
  • the laminated multiply product may also if desired, due to the strong ply bonding provided by the glue spots, be embossed after the lamination process, thereby creating a softer material.
  • the effective ply bonding is achieved due to the distinct gluing effect provided by the lamination rolls driven in registry with the glue transfer rolls. This ply bonding effect is not reduced when converting, for example rolling, the paper product, which may be the case for ply bonding provided by embossing.
  • At least one paper ply may further be reinforced with thin strings of glue or a curing bonding agent, such as latex.
  • the reinforcement may for example take place on the outside of the laminated product after lamination and in register with the lamination process.
  • a curing bonding agent the paper product is cured after lamination, for example by heat treatment.
  • the multi-ply web may be converted to any desired product, such as rolls, folded hand towels, wipes, handkerchief, napkins etc. It would be of advantage to use the multi-ply web according to the invention in so called center-feed coreless rolls, in which the paper is taken from the center of the roll.
  • center-feed coreless rolls in which the paper is taken from the center of the roll.
  • the innermost revolutions which are compressed rather hard so that the embossing is more or less destroyed, will not come out as a satisfactory product.
  • lamination of the plies is separated from any patterning effect provided by embossing or the like and thus also the innermost revolutions of the coreless roll will form a useful product.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Nonwoven Fabrics (AREA)
EP03713128A 2002-02-26 2003-02-26 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 Expired - Lifetime EP1478507B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0200592 2002-02-26
SE0200592A SE0200592D0 (sv) 2002-02-26 2002-02-26 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
PCT/SE2003/000328 WO2003072345A1 (en) 2002-02-26 2003-02-26 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

Publications (2)

Publication Number Publication Date
EP1478507A1 EP1478507A1 (en) 2004-11-24
EP1478507B1 true EP1478507B1 (en) 2005-12-21

Family

ID=20287104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03713128A Expired - Lifetime EP1478507B1 (en) 2002-02-26 2003-02-26 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

Country Status (12)

Country Link
EP (1) EP1478507B1 (zh)
CN (1) CN100349730C (zh)
AT (1) ATE313428T1 (zh)
AU (1) AU2003217101B2 (zh)
BR (1) BR0307947A (zh)
DE (1) DE60302877T2 (zh)
ES (1) ES2254919T3 (zh)
MX (1) MXPA04006788A (zh)
PL (1) PL205889B1 (zh)
RU (1) RU2299811C2 (zh)
SE (1) SE0200592D0 (zh)
WO (1) WO2003072345A1 (zh)

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ITFI20040032A1 (it) * 2004-02-13 2004-05-13 Perini Fabio Spa Metodo e dispositivo goffratore e laminatore per la produzione di manufatti plurivelo e relativo prodotto
US20060138693A1 (en) * 2004-12-29 2006-06-29 Tuman Scott J Method and apparatus for making a cleaning sheet
MX2008010911A (es) 2006-03-17 2008-09-03 Sca Hygiene Prod Ab Articulo de papel laminado y tela continua de papel.
US20100272965A1 (en) * 2007-12-20 2010-10-28 Sca Hygiene Products Gmbh Method and device for producing a printed and embossed web
IT1392784B1 (it) * 2008-07-21 2012-03-23 Futura Spa Dispositivo e metodo per realizzare l'unione di due o piu' veli di materiale cartaceo mediante incollaggio
US20110214580A1 (en) * 2008-12-09 2011-09-08 Sca Hygiene Products Ab Embossing roll for producing fibrous products with a rastered embossing, device employing such embossing roll and arranging embossing protrusions on such embossing roll
CN102245376A (zh) * 2008-12-09 2011-11-16 Sca卫生用品公司 带有光栅压花的纤维制品及其制造方法
CN101804704A (zh) * 2010-04-14 2010-08-18 全利机械股份有限公司 纤维制品压花装置
ITMI20121242A1 (it) * 2012-07-17 2014-01-18 C M R Machineries S R L Apparato per la spalmatura di adesivi su film continui.
ITMI20122260A1 (it) * 2012-12-28 2014-06-29 Gambini Int Sa Dispositivo regolabile di distribuzione colla di un gruppo goffratore-laminatore, relativo gruppo e metodo di regolazione
DE202014104613U1 (de) * 2014-04-09 2015-08-11 Kuka Systems Gmbh Applikator
CN105832229A (zh) * 2015-09-15 2016-08-10 山东太阳生活用纸有限公司 纸巾、纸巾加工方法及装置
IT201600086446A1 (it) * 2016-08-22 2018-02-22 Universal Tissue Tech S R L Dispositivo e metodo di goffratura
CN108749155A (zh) * 2018-07-02 2018-11-06 达成包装制品（苏州）有限公司 传统瓦楞纸板流水线上加装复合瓦楞生产装置
CN109468752B (zh) * 2019-01-09 2020-11-10 江阴健发特种纺织品有限公司 一种多层纺熔复合厨房擦拭材料及制备方法
CN112176767A (zh) * 2020-09-11 2021-01-05 全利机械股份有限公司 纤维制品的液体涂布机台

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Also Published As

Publication number Publication date
MXPA04006788A (es) 2004-12-06
CN1628024A (zh) 2005-06-15
ES2254919T3 (es) 2006-06-16
AU2003217101B2 (en) 2009-02-05
RU2299811C2 (ru) 2007-05-27
EP1478507A1 (en) 2004-11-24
DE60302877D1 (de) 2006-01-26
RU2004128455A (ru) 2005-04-10
BR0307947A (pt) 2004-12-21
DE60302877T2 (de) 2006-08-17
CN100349730C (zh) 2007-11-21
SE0200592D0 (sv) 2002-02-26
WO2003072345A1 (en) 2003-09-04
AU2003217101A1 (en) 2003-09-09
PL205889B1 (pl) 2010-06-30
ATE313428T1 (de) 2006-01-15
PL370295A1 (en) 2005-05-16

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