WO2003086744A1 - Method 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 for producing a multi-ply web of flexible material, such as paper and nonwoven, and multi-ply material produced by the method Download PDFInfo
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- WO2003086744A1 WO2003086744A1 PCT/SE2003/000576 SE0300576W WO03086744A1 WO 2003086744 A1 WO2003086744 A1 WO 2003086744A1 SE 0300576 W SE0300576 W SE 0300576W WO 03086744 A1 WO03086744 A1 WO 03086744A1
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Classifications
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- 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
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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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
- B32B37/1292—Application of adhesive selectively, e.g. in stripes, in patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
- B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
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- 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
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- 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
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- 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
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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
- 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
- B31F2201/0771—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2317/00—Animal or vegetable based
- B32B2317/12—Paper, e.g. cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/06—Embossing
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
- D21H27/32—Multi-ply with materials applied between the sheets
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
- D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
Definitions
- the present invention refers to a method for producing a multi-ply web comprising at least three plies 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, hand towels, napkins, 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 three plies, which are interconnected by means of gluing in discrete glue sites.
- 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 and driven in registry with the first pattern roll.
- the two plies are in different conditions of stress during the lamination process, so that a quilted or cushioned product is provided.
- Laminating three or more tissue plies together by gluing can be made in different ways.
- an embossing unit comprising two embossing nips defined by an embossing roll and a marrying roll providing a nested configuration of the embossed and laminated web and further comprising a glue applicator, as disclosed in for example US-3,867,225, is used, with the modification that two plies are fed together into at least one of the embossing nips.
- Using this technique for laminating three or more plies gives a rather stiff product since the glue has to penetrate completely through the middle layer(s) in order to glue all layers together. An insufficient penetration of the glue through the middle layer(s) will not provide a sufficient plybonding effect.
- three or more plies may be joined together by mechanical plybonding by so called male-to-flat or male-to-male embossing.
- the embossing is normally made only along the edge portions of the tissue product, so called edge embossing, as is disclosed in for example US patent 1,774,497, but may also be made over the entire surface of the product.
- EP-A-436 170 discloses a multiply tissue product comprising at two or more plies that are individually embossed and laminated together by edge embossing. It is difficult to achieve a sufficient plybonding with mechanical embossing only, especially when only the edge portions are embossed.
- 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, wherein at least three plies of flexible material are laminated together by gluing.
- the lamination should provide a good plybonding and be lenient to the material so that the structure of the plies is substantially maintained as well as its strength properties.
- the absorbent capacity and bulk of the finished product should moreover be high as well as its drapability properties.
- the individual plies can move more freely relative to each other than if they would have been glued together in joint glue sites. Relative movements can take place both in lateral and transverse direction relative to the plane of the plies, which contributes to the drapability of the laminated material.
- at least one of the plies before lamination with the opposite ply is exerted to a three-dimensional patterning provided on the material while wet, during drying of the wet material and/or in dry state.
- each glue site preferably amounts to between 0.15 and 150, preferably between 0.5 and 100 mm 2 , more preferably between 1 and 15 mm 2 .
- the number of glue sites per area unit should amount to between 25 per m 2 to 150 per cm 2 , preferably between 300 per m 2 to 50 per cm 2 and more preferably between 800 per m 2 to 20 per cm 2 . It is pointed out that the glue sites may be regularly distributed over the area of the web shaped material, but they may also be irregularly distributed, for example arranged in groups spaced apart.
- the glue sites can be of any optional shape, such as small points, lines, figures, letters, fantasy patterns etc.
- the invention further refers to a multi-ply web of flexible material, such a paper and nonwoven, comprising at least three plies which are interconnected by gluing in a plurality of discrete glue sites, a first and second ply of said multi-ply web being glued together in a first glue pattern comprising a plurality of spaced discrete glue sites and that a third ply is glued to the combined first and second plies in a second glue pattern comprising a plurality of spaced discrete glue sites which are offset with the glue sites of said first glue pattern.
- substantially all glue sites of the second glue pattern are applied offset with respect to the glue sites of the first glue pattern.
- At least one glue pattern may be provided by a coloured glue.
- At least one of the plies has deliberately made holes therein.
- the multi-ply web may further be embossed after lamination.
- FIG. 1 shows a schematic side view of a device for performing the method according to the invention.
- Fig. 2 is a schematic cross section of a three-ply paper produced according to the method.
- Fig. 3 is schematic cross section of a four-ply paper produced according to the method.
- Fig. 4 a plan view of two glue patterns which are applied offset with respect to each other. .
- FIG. 1 shows a device for producing a three-ply material, e g paper, especially tissue paper.
- a first paper web 1 is fed over a roll 2 towards a glue application station.
- This comprises a glue chamber 3 from which glue is applied on a glue roll 4.
- the glue roll 4 is in contact with a first patterned glue transfer roll 5, which along its periphery is provided with a pattern of protuberances 6.
- the glue roll 4 is only contacting the tops of the protuberances 6, so that glue is only applied thereon.
- the paper web 1 is passed into a press nip between the first glue transfer roll 5 and a centrally placed impression roll 11.
- Glue will thus be applied to the first paper web 1 in a first glue pattern corresponding to the configuration of the tops of the protuberances 6.
- the pressure in the press nip between the pattern roll 5_and thejmpression roll 11 is only sufficiently high to accomplish a transfer of glue to the paper web 1.
- a second paper web 7 is fed over a roll 8 and into a press nip between a first pattered lamination roll 9 and the centrally placed impression roll 11.
- the first lamination roll 9 has a three dimensional pattern of protuberances 10 corresponding to the pattern of the first glue transfer roll 5.
- the term "corresponding to” in this respect means that the protuberances 10 either have the same shape and size of the effective surface area as the protuberances 6 of the first glue transfer roll 5, the same shape but a larger effective surface area than the protuberances 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 protuberances 6 of the first glue transfer roll 5.
- a glue pattern provided by the first glue transfer roll 5 may be in the form of groups of three dots arranged in a triangular pattern 22 as shown in Fig. 4, wherein the protuberances 10 of the first lamination roll 9 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 24 covering the three dots, as indicated with broken lines in Fig. 4. In all these cases the relative position of the pattern on the two patterned rolls 5 and 9 are in correspondence with each other.
- the web tension of said first and second plies 1 and 10 are preferably substantially equal as they are fed into the second press nip. Herewith there will be no foreshortening effect from the lamination.
- the two patterned rolls 5 and 9 are driven in registry with each other so that the first and second paper webs 1 and 7 are pressed and glued together in a pattern corresponding to the configuration of the glue pattern provided by the first glue transfer roll 5.
- one central impression roll 11 is used for both the first glue transfer roll 5 and lamination roll 9, as is shown in Fig. 1.
- the pressure should be low but sufficiently high to provide a sufficient gluing together of the two paper plies 1 and 7.
- the pressure in the second press nip should not be higher than to cause only slight compacting impressions 21 just opposite the glue sites in the second ply 7 facing the first lamination roll 9.
- the thus laminated first and second plies 1 and 7 are then fed towards a second glue ⁇ application station comprising a glue chamber 12 from which glue is applied on a glue transfer roll 13.
- the glue transfer roll 13 is in contact with a second patterned glue transfer roll 14, which along its periphery is provided with a pattern of protuberances 15.
- the second glue transfer roll 14 transfers glue to the external side of the second ply 7 in a third press nip in a second glue pattern corresponding to the configuration of the tops of the protuberances 15.
- the pressure in the press nip between the second glue transfer roll 14 and the impression roll 11 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 impression of the protuberances 15 of the glue transfer roll 14 into the paper web 7.
- the second glue pattern is applied offset with respect to the first glue pattern applied by the first glue transfer roll 5.
- a third ply 16 is brought in contact with the glue applied side of the second ply 7 in a fourth press nip between a second patterned lamination roll 18 having a three dimensional pattern of protuberances 19 corresponding to the pattern of the second glue transfer roll 14 and the impression roll 11.
- the term "corresponding to” in this respect is as defined above with respect to the first glue transfer roll 5 and lamination roll 9.
- the second glue transfer roll 14 and lamination roll 18 are in registry with each other, so that the third ply 16 is pressed and glued to the combined first and second plies 1 and 7 in a pattern corresponding to the configuration of the tops of the protuberances 15 of said second glue transfer roll 14.
- the pressure should be low but sufficiently high to provide a gluing together of the combined plies.
- the pressure in the press nip should not be higher than to cause only slight compacting impressions 21 just opposite the glue sites in the third ply facing the second glue transfer roll 9.
- the surface of said multi-ply web facing the central impression roll 9 will substantially maintain its structure unaffected by the lamination process with no compacting impressions in the material opposite the glue sites.
- the laminated multi-ply product is denoted 20.
- one central impression roll 11 is used for all pattern rolls 5, 9, 14 and 18, as is shown in Fig. 1.
- two or more separate impression rolls for one or more of said pattern rolls, and to synchronize them so that they are driven in registry.
- the pattern on the glue transfer rolls 5 and 13 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 per m 2 to 150 per cm 2 , preferably between 300 per m 2 to 50 per cm 2 and more preferably between 800 per m 2 to 20 per cm 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 .
- 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.
- 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 in 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
- water soluble polymers such as latexes and milky colloids in which natural or synthetic rubber or plastic is suspended in
- Coloured glues may also be used, which gives a visual effect and therewith a patterning effect to the material.
- Fig. 2 there is shown an example of a three-ply paper produced according to the invention, at which the glue sites between the first and second plies 1 and 7 are denoted 22 and the glue sites between the second and third plies 7 and 16 are denoted 23. Between the glue sites 22 the paper plies 1 and 7 and between the glue sites 23 the paper plies 7 and 16 are free and not attached to each other and void volumes are created which increase the bulk and absorption capacity of the material, properties that are important for e g soft and absorbent paper. Substantially the entire bulk from the separate plies is maintained after the lamination. The second ply 7 and the third ply 16 can just opposite the glue sites 22 and 23 respectively have slight compacting impressions 21 caused by the pattern rolls 9 and 18 respectively.
- Fig. 3 shows an example of first and second glue patterns, wherein the glue sites 23 of the second glue pattern are arranged half-way between the glue sites 22 of the first glue pattern.
- substantially all glue sites 23 of the second glue pattern are applied offset with respect to the glue sites 22 of the first glue pattern.
- offset means that when seen in a plan view from above substantially all, or at least 90% of the glue sites 23 of the second glue pattern do not overlap with any glue sites 22 of the first glue pattern.
- overlap means that at least part of the surface areas of the glue sites are overlapping, but does not include that the glue sites are in tangent with each other.
- the expression "do not overlap” includes that the glue sites 23 of the second glue pattern, when seen in a plan from above, may be in tangent with or totally separate from the glue sites 22 of the first glue pattern.
- the individual plies can move more freely relative to each other than if they would have been glued together in joint glue sites. Relative movements can take place both in lateral and transverse direction relative to the plane of the plies, which contributes to the drapability of the laminated material.
- the paper webs 1, 7 and 16 that are laminated can be either smooth 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 throughout the laminating process.
- Another important advantages of the invention is 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 decreased.
- 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 first and second lamination rolls 9 and 18 driven in registry with the respective glue transfer rolls 5 and 14 respectively.
- Four or more paper plies may of course be laminated with the method described above.
- three or more glue stations may be arranged to apply glue patterns, which are offset with respect to the previous and/or the subsequent glue pattern. However every second glue pattern may overlap, if desired.
- Two or more plies may further enter the first, second and/or third press nips, wherein four or more plies may be laminated in two glue stations. When entering two or more plies into a glue station, the glue must penetrate into both or all layers. This is illustrated in Fig. 3 and may be accomplished by choosing a glue with appropriate properties, for example viscosity.
- Glues with different properties with respect to for example viscosity may be used in the different glue stations.
- a glue having a lower viscosity is preferably used.
- Different giue may also be used when laminating plies of different material.
- Different kind of paper with different properties with respect to absorption capacity, basis weight, manufacturing technique, fiber composition, chemical additives may be used in the different plies.
- the method is further suitable to use for paper plies having deliberately made holes therein, since the main part of the holes will be intact throughout the lamination process and not be filled with glue, which normally is the case when gluing the plies together.
- deliberately made holes means holes that have been made by mechanical perforation or holes that have been made in connection with forming and/or drying the paper web.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Paper (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003222552A AU2003222552A1 (en) | 2002-04-09 | 2003-04-08 | Method for producing a multi-ply web of flexible material, such as paper and nonwoven, and multi-ply material produced by the method |
EP03717854A EP1497110B1 (en) | 2002-04-09 | 2003-04-08 | Method for producing a multi-ply web of flexible material, such as paper and nonwoven, and multi-ply material produced by the method |
DE60304166T DE60304166T2 (en) | 2002-04-09 | 2003-04-08 | METHOD FOR PRODUCING A MULTILAYER STRIP OF FLEXIBLE MATERIAL SUCH AS PAPER OR NONWOVEN MATERIAL AND MULTILAYER MATERIAL PRODUCED BY THE METHOD |
MXPA04009715A MXPA04009715A (en) | 2002-04-09 | 2003-04-08 | Method for producing a multi-ply web of flexible material, such as paper and nonwoven, and multi-ply material produced by the method. |
BR0309040-0A BR0309040A (en) | 2002-04-09 | 2003-04-08 | Method for producing a fabric of flexible multilayer material such as paper and nonwoven material and multilayer material produced by said method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0201088-2 | 2002-04-09 | ||
SE0201088A SE0201088D0 (en) | 2002-04-09 | 2002-04-09 | Method for producing a multi-ply web of flexible material, such as paper and nonwoven, and multi-ply material produced by the method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003086744A1 true WO2003086744A1 (en) | 2003-10-23 |
Family
ID=20287548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2003/000576 WO2003086744A1 (en) | 2002-04-09 | 2003-04-08 | Method for producing a multi-ply web of flexible material, such as paper and nonwoven, and multi-ply material produced by the method |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP1497110B1 (en) |
CN (1) | CN1646303A (en) |
AT (1) | ATE320913T1 (en) |
AU (1) | AU2003222552A1 (en) |
BR (1) | BR0309040A (en) |
DE (1) | DE60304166T2 (en) |
MX (1) | MXPA04009715A (en) |
PL (1) | PL371654A1 (en) |
RU (1) | RU2004132838A (en) |
SE (1) | SE0201088D0 (en) |
WO (1) | WO2003086744A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005077649A1 (en) * | 2004-02-13 | 2005-08-25 | Fabio Perini S.P.A. | Embossing and laminating method and device for producing multi-ply web products and relative product |
WO2005095100A1 (en) * | 2004-03-02 | 2005-10-13 | Sca Hygiene Products Gmbh | Multi-ply planar absorbent product and process for manufacturing such a product |
US7607469B2 (en) * | 2003-11-13 | 2009-10-27 | Rafael Aragones Martinez | System for gluing bags comprising multiple sheets |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109878194A (en) * | 2019-03-18 | 2019-06-14 | 陈宝明 | A method of producing multilayer filling thermal insulation material |
CN112176767A (en) * | 2020-09-11 | 2021-01-05 | 全利机械股份有限公司 | Liquid coating machine table for fiber products |
Citations (7)
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EP0264676A1 (en) * | 1986-10-10 | 1988-04-27 | MIRA LANZA S.p.a. | Process for the manufacture of multi-ply absorbent paper sheets, and composite paper sheet products thus obtained |
EP0738588A1 (en) * | 1995-04-13 | 1996-10-23 | Scott Paper Company | Improved absorbent paper product and method of making |
DE19534812A1 (en) * | 1995-09-20 | 1997-03-27 | Pwa Hygienepapiere Gmbh | Multi-layer web-shaped tissue product with an unembossed middle layer, its manufacture and device for its production |
US5736223A (en) * | 1993-07-09 | 1998-04-07 | James River | Multilayer embossed papers, and device and method for producing same |
US5906711A (en) * | 1996-05-23 | 1999-05-25 | Procter & Gamble Co. | Multiple ply tissue paper having two or more plies with different discrete regions |
WO1999044814A1 (en) * | 1998-03-02 | 1999-09-10 | Fabio Perini S.P.A. | Method and device for producing an embossed web material and product made in this way |
EP1081284A1 (en) * | 1999-08-31 | 2001-03-07 | Fort James France | Absorbent paper product comprising at least three plies, and process for making the same |
-
2002
- 2002-04-09 SE SE0201088A patent/SE0201088D0/en unknown
-
2003
- 2003-04-08 PL PL03371654A patent/PL371654A1/en not_active IP Right Cessation
- 2003-04-08 AT AT03717854T patent/ATE320913T1/en not_active IP Right Cessation
- 2003-04-08 WO PCT/SE2003/000576 patent/WO2003086744A1/en not_active Application Discontinuation
- 2003-04-08 EP EP03717854A patent/EP1497110B1/en not_active Expired - Lifetime
- 2003-04-08 BR BR0309040-0A patent/BR0309040A/en active Search and Examination
- 2003-04-08 RU RU2004132838/12A patent/RU2004132838A/en not_active Application Discontinuation
- 2003-04-08 MX MXPA04009715A patent/MXPA04009715A/en unknown
- 2003-04-08 DE DE60304166T patent/DE60304166T2/en not_active Expired - Lifetime
- 2003-04-08 CN CN03808035.4A patent/CN1646303A/en active Pending
- 2003-04-08 AU AU2003222552A patent/AU2003222552A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0264676A1 (en) * | 1986-10-10 | 1988-04-27 | MIRA LANZA S.p.a. | Process for the manufacture of multi-ply absorbent paper sheets, and composite paper sheet products thus obtained |
US5736223A (en) * | 1993-07-09 | 1998-04-07 | James River | Multilayer embossed papers, and device and method for producing same |
EP0738588A1 (en) * | 1995-04-13 | 1996-10-23 | Scott Paper Company | Improved absorbent paper product and method of making |
DE19534812A1 (en) * | 1995-09-20 | 1997-03-27 | Pwa Hygienepapiere Gmbh | Multi-layer web-shaped tissue product with an unembossed middle layer, its manufacture and device for its production |
US5906711A (en) * | 1996-05-23 | 1999-05-25 | Procter & Gamble Co. | Multiple ply tissue paper having two or more plies with different discrete regions |
WO1999044814A1 (en) * | 1998-03-02 | 1999-09-10 | Fabio Perini S.P.A. | Method and device for producing an embossed web material and product made in this way |
EP1081284A1 (en) * | 1999-08-31 | 2001-03-07 | Fort James France | Absorbent paper product comprising at least three plies, and process for making the same |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7607469B2 (en) * | 2003-11-13 | 2009-10-27 | Rafael Aragones Martinez | System for gluing bags comprising multiple sheets |
WO2005077649A1 (en) * | 2004-02-13 | 2005-08-25 | Fabio Perini S.P.A. | Embossing and laminating method and device for producing multi-ply web products and relative product |
WO2005095100A1 (en) * | 2004-03-02 | 2005-10-13 | Sca Hygiene Products Gmbh | Multi-ply planar absorbent product and process for manufacturing such a product |
Also Published As
Publication number | Publication date |
---|---|
SE0201088D0 (en) | 2002-04-09 |
PL371654A1 (en) | 2005-06-27 |
EP1497110A1 (en) | 2005-01-19 |
EP1497110B1 (en) | 2006-03-22 |
RU2004132838A (en) | 2005-05-10 |
ATE320913T1 (en) | 2006-04-15 |
AU2003222552A1 (en) | 2003-10-27 |
DE60304166T2 (en) | 2006-12-14 |
BR0309040A (en) | 2005-02-01 |
CN1646303A (en) | 2005-07-27 |
DE60304166D1 (en) | 2006-05-11 |
MXPA04009715A (en) | 2005-01-11 |
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