EP2998436A1 - Procede et dispositif de fabrication de produits de surface ayant au moins trois couches, produit ayant au moins trois couches - Google Patents

Procede et dispositif de fabrication de produits de surface ayant au moins trois couches, produit ayant au moins trois couches Download PDF

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Publication number
EP2998436A1
EP2998436A1 EP15184727.4A EP15184727A EP2998436A1 EP 2998436 A1 EP2998436 A1 EP 2998436A1 EP 15184727 A EP15184727 A EP 15184727A EP 2998436 A1 EP2998436 A1 EP 2998436A1
Authority
EP
European Patent Office
Prior art keywords
embossing
layer
elevations
roller
ply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15184727.4A
Other languages
German (de)
English (en)
Inventor
Gerd Scharfenstein
Lutz Klingauf
Jürgen Schütz
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.)
Metsa Tissue Oyj
Original Assignee
Metsa Tissue Oyj
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 Metsa Tissue Oyj filed Critical Metsa Tissue Oyj
Publication of EP2998436A1 publication Critical patent/EP2998436A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • 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
    • D21H27/002—Tissue paper; Absorbent paper
    • 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
    • D21H27/02—Patterned paper
    • 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
    • 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
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0741—Roller cooperating with a non-even counter roller
    • B31F2201/0743—Roller cooperating with a non-even counter roller having a matching profile
    • 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
    • B31F2201/0766—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
    • B31F2201/0771—Other aspects of the embossing operations
    • B31F2201/0774—Multiple successive embossing operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0784—Auxiliary operations
    • B31F2201/0787—Applying adhesive

Definitions

  • the present invention relates to a device for producing at least three-ply sheet products, in particular from tissue and / or tissue-like materials, and to an apparatus for carrying out the method according to the invention, an at least three-ply surface product produced by the method or apparatus according to the invention as well as its Use.
  • the paper product produced by means of the device has a connection of the layers on top surfaces of at least partially oppositely arranged embossing points, generated by corresponding embossing elevations on the embossing rollers, wherein a synchronization of the embossing rollers takes place.
  • a middle layer is provided without any embossing.
  • a disadvantage of these embossed surface products known from the prior art is that, as far as they are provided with design patterns, the design patterns are not particularly sharp, and the softness and the volume / thickness seems in need of improvement, so that the feel of the user of the surface product improved is.
  • the production process, in particular the winding of the surface product produced, is especially for larger Roll diameters to be improved.
  • a method for producing at least three-ply surface products with a device comprising at least a first and a second embossing roll, comprising a plurality of substantially identical geometry formed first embossing surveys, each embossment elevation is assigned a head surface, and a between these first and second embossing rollers arranged gap, in which the first embossing projections of the first and second embossing rollers are arranged with their top surfaces substantially opposite each other and a first layer of a web-like material on the first embossing roller and a second layer of a web-like material on the second embossing roller be guided to and through the gap and provided by the first embossing elevations with substantially identically formed first recesses whose first reasons are interconnected, and wherein between the first Reasons first connecting surfaces are arranged, wherein the two-ply product thus obtained is then connected on one side thereof, preferably only on one side thereof, with at least one third layer of a web
  • the surface product which can be produced by means of the process according to the invention can be made of tissue, tissue-like material, Be made of cotton fibers and / or non-woven materials and their combination.
  • non-woven materials are understood in particular to mean those which are produced from natural fibers, preferably from paper fibers, and / or synthetic fibers.
  • the synthetic fibers used are preferably polymer fibers and / or combinations of natural-like or synthetic fibers.
  • tissue is understood to mean a product which corresponds to DIN 6730. Accordingly, tissue is a product having a basis weight of about 10 g / m 2 to about 50 g / m 2, based on a single-ply material.
  • tissue-like material is understood as meaning a material which, in contrast to tissue material, is produced by changes in the drying process.
  • starting material for the production of tissue and / or tissue-like material for example, pulp, waste paper, bamboo and / or straw can be used.
  • the term “about” or “substantially” in terms of features, in particular values or ranges of values, is used, this is to be understood as that which the expert will regard in the given context as expertly common.
  • deviations of the stated values of + - 10%, preferably + - 5%, from the term “about” or “substantially” are included.
  • the term “substantially” in connection with the geometry of embossing surveys or the formation of the surface product with depressions, grounds and connecting surfaces or the term “at least” in connection with a partial connection of the first connecting surfaces with the second reasons is used, this is also to understand that which the expert will regard in the given context as expertly common.
  • etching, Moletierbacter or combinations thereof are produced, wherein then the finished roller can be subsequently cleaned and brushed.
  • edges in the transition of the top surfaces to the side surfaces or flanks of embossing elevations can be broken or rounded off, with the result that the geometry of adjacent embossing elevations is not necessarily 100% identical.
  • first and second embossing elevations in particular the dimension of these top surfaces, it can also in production to full-surface connections of the first connecting surfaces with the second reasons, usually to a small extent of not more than 20%, preferably not more than 10%, more preferably not more than 5%, based on the total number of first bonding surfaces.
  • embossing elevations Insofar as the term "designed with a substantially identical geometry" in the context of the present invention is used in connection with embossing elevations, this is to be understood as meaning that the geometry of the embossing elevations, which may, for example, be frustoconical or truncated pyramid-shaped, without taking into account the possible deviations, as described above in connection with the term “substantially”, but their height or volume may be different.
  • the term in question therefore refers to the basic geometric shape of the embossing surveys.
  • the first embossing roller frustoconical first Crugeerhebonne with a height of 1.2 mm and the second embossing roller frustoconical first Crugeerhebache have a height of 0.9 mm.
  • the weight per unit area of a single layer of the at least three-ply sheet product produced by the method according to the invention is preferably in a range from about 6 g / m 2 to 100 g / m 2 , preferably in a range from 9 g / m 2 to about 35 g / m 2 .
  • the Weight per unit area of a three-ply surface product produced by means of the method is advantageously in a range from about 25 g / m 2 to about 150 g / m 2 .
  • the basis weights for four-ply surface products or even multi-ply surface products are correspondingly higher.
  • the first and second embossing rollers are advantageously provided uniformly over their entire embossing surface with first embossing elevations.
  • the embossing rollers are preferably made of steel.
  • the surface of the embossing rollers is preferably produced by means of laser methods, etching methods, molten methods or combinations thereof.
  • the gap disposed between the first and second embossing rolls has a height in a range of about 0.005 mm to about 0.8 mm.
  • first and second reasons in the first, second, third, fourth or further layers are spoken, they may also be referred to as trays between which layer portions are arranged, which provide first and second bonding surfaces.
  • the connection of the first reasons is via a respective outer surface thereof, which face each other.
  • the first bonding surfaces of the two-ply product are, as far as the third, fourth and each further layer is applied only on one side of the two-ply product, which is preferred, formed by ply portions between first reasons of the first and second layer.
  • the bonding surface of these ply portions of the two-ply product is disposed relative to a single first or second ply opposite the outer surface of the first ply, and is at least partially opposed to a second puddle of a third, fourth or any other ply such that over an outer surface thereof the third, fourth or each further layer can then be connected to the first connection surface formed by the layer section between two grounds of the first and / or second layer.
  • first embossing surveys in the first and second position ultimately embossing points are generated and thus an embossing pattern, wherein the embossing points can be designed differently, which is dependent on the shape of the head surface of the first embossing surveys.
  • the embossing points form a micro and / or macro pattern
  • a micropattern in the first or second layer in the sense of the present invention has at least thirty embossing points per cm 2 , preferably more than 40 embossing points per cm 2 , particularly preferably from about 30 to about 50 Embossing points per cm 2
  • a macro-pattern has less than 30 embossing points per cm 2 , preferably about 10 to about 25 embossing points per cm 2 .
  • the first and second embossing rolls can also have first embossing elevations which form a micropattern in certain areas and a macro-pattern in other areas.
  • first embossing surveys in the region of the micro- or macro-patterns to be formed have a substantially identical geometry, and the assignment of derer head surfaces as described above.
  • the first embossing elevations may be uniformly distributed on the first and the second embossing roll over the entire embossing region thereof.
  • the first embossing elevations are not distributed uniformly over the embossing surface of the first and the second embossing roll, but also irregular.
  • areas may also be formed in which first embossing elevations have been omitted, wherein these omission areas can then also take on the form of, for example, a design such as a leaf, an animal or the like. It can also be provided that certain regions of the first embossing elevations have a lower height or a greater height than a second group of embossing elevations. Particularly preferably, up to 25%, more preferably up to 20%, even more preferably up to 15% of the first embossing elevations may have a different height or geometry from other first embossing elevations, in particular in areas which serve to form a design pattern.
  • the first and the second embossing roller are to be synchronized with each other in such a way that the largest possible number Tip-to-tip connections of the first reasons of both layers is achieved. It may be preferably provided that the embossing of the first layer and the second layer as a pure "tip-to-tip" connection, in which all first reasons of both layers are interconnected, is carried out with one or more designs, or also as so-called "random tip-to-tip” embossing with one or more designs, in which z.
  • a roller has a diagonal arrangement of first embossing surveys and a second embossing roller an opposite diagonal arrangement of first embossing surveys. Preferred are at
  • the two-ply product obtained after embossing by the first and second embossing roll, essentially has a tip-to-tip structure. As such, it serves as a voluminous base, which is then provided with a support, that is, the third layer, fourth layer or any other layer, preferably only on one side.
  • the voluminous base formed from two layers, substantially tip-to-tip, preferably has a micro- and / or macro-pattern as described above.
  • the height of the first embossing elevations are within one range from about 0.5 mm to about 1.7 mm.
  • the diameter of the head surface of the first embossing elevations, as far as the head surface is formed round, which is preferred, is in a range between about 0.35 mm to about 1.7 mm.
  • the surface product produced by means of the method according to the invention furthermore has a very good winding hardness compared with other comparable rolled products known from the prior art, so that the voluminous surface product produced according to the invention leads to a more firmly wound roll up to a defined roll diameter, whereby ultimately the manufacturing process is more stable.
  • the winding hardness is calculated according to the following formula: Roll diameter in mm - Sleeve diameter in mm / 1000 / mm / 1000 ) product thickness i n ⁇ m / 1000000 ⁇ number B l a ⁇ tter p r O role ⁇ B l a ⁇ t t l a ⁇ n G e i n m m / 1000
  • the winding hardness is in a range of about 6.7.
  • the winding hardness within a range of about 7.4 determinable.
  • the roll diameter was 120 mm and the diameter of the sleeve on which the four-ply toilet paper was wound was 45 mm.
  • the roll diameter was 130 mm, whereas the tube diameter was also 45 mm.
  • Second depressions of at least one third, fourth, etc. layer of a sheet-like material are preferably produced via a third Embossing roller with second, preferably a plurality of second embossment elevations, which form the second recesses.
  • the at least one third, fourth, etc. layer is guided over the third embossing roll.
  • a connection is made with the two-ply product, that is, the voluminous base.
  • the connection is advantageously carried out by guiding the two-ply product with the at least one third, fourth, etc. layer into a connection region between the third embossing roll and a so-called marrying roll assigned to it.
  • the connecting roller is designed, for example, as a steel roller with a rubber jacket, the third embossing roller penetrates via its second embossing elevations into the rubber material of the connecting roller.
  • the second embossing elevations on the third embossing roll are arranged and / or designed differently than the first embossing elevations on the first and second embossing rolls.
  • the second depressions generated by means of the second embossing elevations form a micropattern, a macropattern and / or a design pattern, preferably both a micropattern and / or macropattern and a designpattern.
  • the micro-pattern and the macro-pattern for the second embossing elevations are defined identically in terms of dimensions and geometry, as explained above in connection with the first embossing elevations.
  • the second embossing elevations in the third, fourth or each further layer can form either a micropattern and a design pattern or else a macropattern and a design pattern.
  • the second embossment elevations may have different heights, wherein preferably the heights for the micro and / or macro pattern are slightly lower than the heights for the design pattern, wherein the heights are determined between the roll base and the top surface of the second embossment elevations.
  • the second embossment reliefs providing a micro and / or macro pattern are about 0.15 mm to about 1.5 mm, Preferably, about 0.2 mm to about 0.7 mm, more preferably about 0.3 mm to about 0.6 mm, formed lower than those of the second embossment elevations that form a design pattern. Accordingly, the second recesses of the third, fourth or each further layer have a different depth.
  • a design pattern may also be produced by omitting second embossing elevations in one or more regions of the third embossing roll so that second embossing elevations, preferably identically formed, are then arranged around the omitted area, which microstructures and / or macro-pattern. It can also be provided that the heights of the design patterns generating second embossing elevations are formed by the above values or areas lower than the micro embossing and / or macro pattern to be formed second embossing elevations of the third embossing roll.
  • a cross section through a second embossment elevation generating a design pattern may preferably be larger than a cross section of a second embossment elevation that forms a micro or macro pattern, in particular from about 1.4 times to about 4 times as large as in a micro or macro pattern forming second embossing survey. Accordingly, the connection between the second reasons also changes with the first connection surfaces such that preferred first connection surfaces are bridged by a second reason of the third, fourth etc. layer bridging a first ground in the tip-to-tip double layer. As a result, the strength of the product is positively influenced.
  • the second embossing bumps can, if they produce a design pattern, for example, as a closed lines, straight or curved line pieces with open ends or similar. For example, they can take the form of an animal, a flower or other subject.
  • a design pattern for example, as a closed lines, straight or curved line pieces with open ends or similar.
  • they can take the form of an animal, a flower or other subject.
  • second embossing elevations, which form a design pattern it is then possible for second embossing elevations, which form a micro and / or macro pattern, to be formed. may be arranged, wherein between the design pattern forming second embossing projections and the micro embossing and / or macro pattern forming second embossing surveys also a distance may be provided, whereby the design pattern stands out more.
  • second embossing elevations with different heights are used, different second depressions are formed in the at least one third layer from each other, so that then a connection between the first connecting surfaces and the second reasons preferably only on those second reasons, by the second embossment elevations of greater height , For example, the second embossing surveys generating a design pattern were generated.
  • the top surfaces of the first embossing elevations and also of the second embossing elevations, insofar as they form a micro- and / or macro-pattern are at least 0.05 mm 2 , and are advantageously in a range from about 0.06 mm 2 to about 5 mm 2 , preferably about 0.1 mm 2 to about 1.0 mm 2 .
  • the top surfaces of the second embossment elevations, insofar as they form a design pattern are at least 1 mm 2 , and are preferably in a range from about 1.2 mm 2 to about 5.1 mm 2 , more preferably up to about 8 mm 2 .
  • the embossing elevations may be formed at an opening angle of about 5 ° to about 85 °, advantageously at an angle in a range of about 20 ° to about 50 °.
  • the side surfaces of the embossing surveys need not be identical, and also do not have an identical opening and / or flank angle. Rather, they can also be designed differently, in particular asymmetrically.
  • all embossing elevations which are arranged on the surface of the first, second and third embossing rolls are preferred insofar as they provide a micro- and / or macro-pattern with regard to the third embossing roll, which preferably forms a punctiform manner on the layers is formed cone or truncated pyramid, preferably symmetrically, that is, with identical flank angles.
  • the first wells and second wells have in the first, second, third etc. position reasons that correspond approximately to the top surfaces of the first and second embossing surveys.
  • top surfaces of the second embossment elevations forming a design pattern may be designed differently, and preferably also have a different geometry, for example a linear instead of a punctiform, and are advantageously trapezoidal in cross-section.
  • connection of the third layer takes place via its second base according to the invention at least partially with one of the first bonding surfaces of the two-ply product. It is not necessary for the purposes of the present invention that every second reason of the third layer is at least partially connected to one of the first connection surfaces. Rather, it may well be that only every second or third second reason of the at least one third layer is at least partially connected to one of the first connecting surfaces of the two-ply product.
  • Partially bonding the third web over at least one second bottom to one of the first bonding surfaces of the two-ply product means that preferably from about 1% to about 85%, preferably from about 3% to about 20% of the area of the second bottom of the third layer or another layer is connected to one of the first connecting surfaces of the two-ply product.
  • the at least one third and fourth layer preferably unembossed but also embossed, would be guided together over the third embossing roller so that second recesses are formed in the at least one third and fourth layer by the second embossing elevations on the third embossing roller be formed.
  • second recesses are advantageously arranged one inside the other, and can also be addressed as nested second recesses in a preferred embodiment.
  • the fourth layer is fed separately from the third layer from a further embossing unit, consisting of an embossing roller of a smooth roller, and subsequently one Connection of the third and the fourth layer with the voluminous, two-ply base in the connection region with the connecting roller takes place.
  • the fourth or each further layer which may also be guided by a separate embossing unit, can then be guided directly into the connection area between the third embossing roller and connecting roller.
  • All layers of a sheet-like material which are used in the context of the method and apparatus according to the invention in the sense of the present invention can also be supplied to the embossing rolls in an embossed, but preferably in an unembossed form.
  • the advantage of the supply in an unembossed form is that it does not lead to over-stamping, so that ultimately a sharper and improved visual appearance, especially when using a design pattern, can be achieved.
  • an overprint leads to unwanted strength losses.
  • the second depressions of the at least one third layer are formed by second embossing elevations of the third embossing roll, which have an identical or a different height, measured between a base of the roller and the second top surfaces of the second embossing elevations, as already described above.
  • the at least one third layer is provided with a glue before being combined with the two-layered product.
  • the glue can be colored, so that thereby optical effects can be achieved.
  • the glue is advantageously transferred via a gluing unit with a glue application roller to the at least one third layer in the region of the second embossing elevations of the third embossing roller.
  • the third embossing roll has second embossing elevations which have a different height, for example, in the case of second embossing elevations for producing a design pattern, the latter have a greater height than the second embossing elevations forming a micro- and / or macro-pattern
  • colored glue is applied almost exclusively to the at least one third layer in the region of these second embossing elevations which produce the design pattern, so that the same appears optically highlighted on the finished surface product.
  • the applicator roller of the gluing unit is adjusted so that the glue is applied only to those embossing surveys, which have a greater height.
  • a third and fourth layer on the third embossing roller penetrates the glue at least partially through the fourth layer or vice versa, when the glue is applied to the fourth layer, this at least partially penetrates into the third layer, so that a total good all Layers is created.
  • the basis, glue is advantageously used, wherein this glue is uniformly transferred to the first embossing elevations via a gluing unit, associated with the first or the second embossing roll.
  • the glue may in turn be colored, so that, for example, a colored uniform dot pattern with colored embossing points is given to the two-ply product.
  • the color of this glue, which is used in the two-ply product may be different from the color of that glue which is at least partially applied to the second embossing elevations of the third embossing roll.
  • the at least one third layer is preferably guided with the two-ply product between the third embossing roll and a marrying roll.
  • the embossing pressure between the third embossing roller and the connecting roller is in a range from about 4 bar to about 8.2 bar, preferably in a range from about 5.7 bar to about 6.3 bar.
  • the embossing pressure is thereby set by adjusting the connecting roller, formed as a steel roll or as a rubber roll with a steel core or rubber roll with steel core and steel jacket, adjusted in relation to the embossing roll, wherein either the connecting roller or the embossing roll is movably arranged in the embossing device.
  • the embossing pressure in terms of the material used and the achieving embossing patterns, in particular, if this has a design pattern selected.
  • a nip pressure in the embossment between the third embossing roller and the connecting roller is in a range of about 15 N / mm to about 25 N / mm, and is preferably in a range of about 20 N / mm.
  • the line pressure is calculated from the applied pressure on the pneumatic cylinders of the roller pairs in multiplication by the length of the lever arm and divided by the embossing width, which is determined by the width of the embossing surface of the embossing roller.
  • the present invention further relates to an apparatus for carrying out the method according to the invention with a first and a second embossing roll and a gap arranged therebetween, wherein the first and second embossing roll have a plurality of first embossing elevations formed substantially with an identical geometry and having first top surfaces are arranged in the gap substantially opposite, wherein in the gap two layers of a web-shaped material can be guided to form a two-ply product with first recesses and first reasons and first connecting surfaces, and subsequently the gap, a third embossing roll is provided with second embossing elevations with second top surfaces, via which at least one third layer of a web-shaped material can be guided, wherein the third embossing roller is arranged such that at least one second head surface of the second embossing elevations at least partially at least one first connection surface of the two-ply product is assignable.
  • the first head surfaces of the first embossing elevations preferably have a substantially identical surface, also an identical surface shape, so that the top surfaces essentially coincide with one another.
  • the height of the first embossing elevations as well as their volume can be designed differently, so that, for example, the first embossing roll first embossing elevations with a first height and the second embossing roll first embossing elevations with a second height.
  • the opposing first and second embossing rollers may have first embossing elevations of different heights, in which case the opposing roller is designed to be complementary with respect to its first embossing elevations.
  • the first, second and / or third embossing roll are associated with a smooth roller.
  • the smooth roller is preferably made as a roller with a core of steel and a rubber sheath.
  • the hardness of the smooth roll is about 30 to about 80 ShoreA, preferably about 40 to about 65 ShoreA.
  • this connection region is designed such that there is not excessive compression, in particular of the two-layered product, which represents the voluminous basis, so that the bulkiness after passing through this connection region substantially corresponds to that before the connection region.
  • Influence on this also has the material of the connecting roller, which preferably has a steel core and is coated with a rubber sheath, or in addition still has a steel sheathing.
  • the third embossing roller is assigned a first gluing unit, by means of which glue can be applied to the at least one third layer in the region of the second top surfaces of at least one part of the second embossing elevations and thus in the region of second grounds of the at least one third layer.
  • the second embossing elevations of the third embossing roller have an equal or unequal height, measured from a base of the roller and the second head surface of the second embossing elevations.
  • the second embossing elevations which have a greater height in comparison to further second embossing elevations, which have a lower height and form the micro- and / or macro-pattern, are responsible for the formation of a design pattern, wherein the latter then Also, for example, can be provided with a colored glue, whereby the design pattern stands out more.
  • the second embossing elevations of the third embossing roll have different geometries. As a result, the formation of a micro and / or macro pattern next to a design pattern can be achieved.
  • the present invention further relates to an at least three-ply surface product produced according to the method according to the invention and / or with the device according to the invention.
  • the at least three-ply surface product advantageously has a thickness of at least 400 ⁇ m. If it is an exactly three-ply surface product, the thickness is advantageously in a range of about 400 ⁇ m to about 550 ⁇ m; if it is a four-ply surface product, the thickness is advantageously in a range of about 550 ⁇ m to about 750 ⁇ m.
  • the present invention relates to the use of at least a three-ply surface product as toilet paper, kitchen paper, cleaning cloth, tissue, handkerchief, napkin or paper towel.
  • the glue is shown enlarged only for clarity. As from the basis of the Fig. 1 and 2 is illustrated, the glue is applied in the region of the top surfaces of the second embossing projections 56 and 58 of the third embossing roll 44 on the third and fourth layer, and not on the first and second situation.
  • Fig.1 now shows an overall device designated by the reference numeral 10 according to the invention, in which two webs of material as first layer 30 and second layer 32 are merged to form a two-ply product 34.
  • a web-like material while a tissue material is used both for the first Layer 30 and second layer 32 as well as a third layer 54th
  • the first layer 30 is fed via a first smooth roll 13 of a first embossing roll 14, which together form a first pair of rolls 12.
  • a second gluing unit 24 Associated with the first embossing roller 14 is a second gluing unit 24 with a glue application roller 26.
  • colorless or colored glue can be applied to the embossing roller 14 arranged first embossing surveys.
  • the second layer 32 is fed via a second smooth roller 20 of the second embossing roller 18, which together form a second roller pair 16.
  • a gap 22 between the first embossing roll 14 and the second embossing roll 18, the first layer 30 and the second layer 32 are joined to the two-ply product 34.
  • the two-ply product 34 is connected tip-to-tip.
  • the first embossing elevations both on the first embossing roll 14 and on the second embossing roll 18 were identically formed with a frusto-conical geometry with identical heights and volumes.
  • the two-ply product 34 is fed to a third embossing roll 44 and subsequently bonded to a three-ply product 60.
  • the third layer 54 via a third smooth roller 42 of the third embossing roller 44, which together form a third pair of rollers 40, respectively.
  • This has second embossing elevations 56, 58 with the same height, which, however, are designed differently, such as Fig.2 can be seen. Alternatively, they may also be identical. In this case, it is provided for generating a design pattern that second embossing elevations 56 have a larger top surface 57 than second embossment elevation 58 with a head surface 59.
  • the second embossing elevations 56 may be formed on the line Surface of the third embossing roller 44.
  • a first gluing unit 50 is applied via a glue application roller 52 colorless or colored glue on the third layer 54, which there evenly in the area of the top surfaces 57, 59 of the second embossment elevations 56, 58 (see FIG. 2 ) of the third embossing roller 44 is applied.
  • the third ply 54 is bonded to one side 33 of the two-ply product 34 in a bonding region 48, the bonding region 48 being formed between the third embossing roll 44 and a bonding roll 46 having a steel core with a rubber jacket.
  • the three-ply surface product 60 of the device 10 is then removed.
  • Fig. 2 shows the relationships in the second connection region 48 between the third embossing roller 44 and connecting roller 46 of the device 10 according to Fig. 1 ,
  • the third embossing roller 44 has second embossing elevations 56 and 58, wherein the second embossment elevation 56 has a larger head surface 57 than the second embossment elevation 58 with the top surface 59.
  • Glue 70 indicated schematically.
  • the second embossing elevations 56 and 58 are arranged starting from a roll base 45 on the embossing roller 44.
  • the two-ply product 34 has first recesses 35 or 35 'on the opposite side as well as first reasons 36.1 and 36.2 or opposite 36.1' and 36.2 ', between which connecting surfaces 38 and 38' are formed for the two layers of the two-ply product 34, wherein a connection is only produced via first connecting surfaces 38 'on the side 33 of the two-ply product 34.
  • the third ply 54 has a plurality of depressions 64 formed by the second embossment bumps 56 and 58.
  • the third layer 54 also has elevations 68 between two depressions 64, and the depressions 64 have second reasons 66.1 and 66.2. These second reasons 66.1 and 66.2 are at least partially connected to their surfaces facing the two-ply product 34 with connecting surfaces 38 '. the third layer 54 facing position of the two-ply product 34 on the side 33 by embossing as well as by the glue 70. How good in Fig. 2 to recognize the connection of the third layer 54 with the two-ply product 34 takes place unevenly. This is also due to the different distances of the second embossing survey 56 and 58 from each other.
  • top surfaces 57 and 59 of the second embossing elevations 56 and 58 are at least partially associated with the first connecting surfaces 38 'of the two-ply product 34 so that there just above the second grounds 66.1 and 66.2, achieved by the embossing of the third layer 54 by means of the embossing roller 44th , in the region of the head surfaces 57 and 59 at least partially a connection with the first connection surfaces 38 'can be achieved.
  • Figure 3 shows a second embodiment of the device according to the invention for producing a four-ply surface product 90.
  • the production and the structure of the two-ply product 34 is identical to that in the embodiment according to Fig.1 described.
  • a third layer 54 is connected via an embossing roll 44 with the two-ply product 34, but in addition a fourth layer 80, which is fed together with the third layer 54 via the third smooth roller 42 of the third embossing roller 44 and be embossed, so that a nested embossing of the third layer 54 and the fourth layer 80 takes place.
  • the third embossing roll 44 again had second embossing elevations 56 and 58, which are formed as in FIG Fig.2 described.
  • glue was also transferred via the first gluing unit 50 uniformly in the area of all top surfaces 57 and 59 of the second embossment elevation 56, 58 on the third layer 54, and subsequently then the two layers 54 and 80 with the two-layered product 34 is supplied to the connecting portion 48 between the third embossing roller 44 and connecting roller 46. Subsequently, the four-layer surface product 90 of the device 10 was then removed.
  • Figure 4 shows the relationships in the connecting region 48 between the third embossing roller 44 and the rubber-reinforced connecting roller 46.
  • reasons 66 of the third layer 54 now occur in comparison to the state according to the Fig.2 Reasons 82 of the fourth layer 80 in addition, the connection with first connecting surfaces 38 'of the two-ply product 34 by embossing and additionally by a glue 70 experience.
  • the glue 70 is thereby transferred to the fourth layer 80 in the area of the top surfaces of the second elevations 56 and 58 of the third embossing roller 44 and penetrates at least partially into the third layer 54.
  • elevations 68 of the third layer 54 and elevations 81 of the fourth layer 80 can be seen.
  • all top surfaces of the second embossment elevations 56 and 58 are at a common height, so that all second embossing elevations 56 and 58 are provided with glue 70.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
EP15184727.4A 2014-09-16 2015-09-10 Procede et dispositif de fabrication de produits de surface ayant au moins trois couches, produit ayant au moins trois couches Withdrawn EP2998436A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014013414.8A DE102014013414A1 (de) 2014-09-16 2014-09-16 Verfahren zur Herstellung von mindestens dreilagigen Flächenprodukten

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EP2998436A1 true EP2998436A1 (fr) 2016-03-23

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EP15184727.4A Withdrawn EP2998436A1 (fr) 2014-09-16 2015-09-10 Procede et dispositif de fabrication de produits de surface ayant au moins trois couches, produit ayant au moins trois couches

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EP (1) EP2998436A1 (fr)
DE (1) DE102014013414A1 (fr)

Cited By (1)

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CN110202842A (zh) * 2019-06-28 2019-09-06 佛山市南海区德昌誉机械制造有限公司 一种生活用纸的二次上胶复合压花机构

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DE69931631T2 (de) 1998-03-06 2007-05-16 Georgia-Pacific France Dreilagiges saugfähiges papierprodukt und verfahren zu seiner herstellung
EP1911574A1 (fr) * 2006-10-11 2008-04-16 Delicarta SPA Matériau papier doté d'un motif gaufré amélioré et son procédé de fabrication
WO2009080103A1 (fr) * 2007-12-20 2009-07-02 Sca Hygiene Products Gmbh Procédé et dispositif pour produire un film imprimé et gaufré
DE102014009320A1 (de) * 2014-06-27 2015-12-31 Metsä Tissue Oyj Vorrichtung zur Herstellung von Flächenprodukten

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ES2211136T3 (es) * 1998-03-02 2004-07-01 Fabio Perini S.P.A. Procedimiento y dispositivo para la fabricacion de un material en banda gofrado y producto asi obtenido.
ITMI20040675A1 (it) * 2004-04-02 2004-07-02 Sca Hygiene Prod Ab Apparato e procedimento per la realizzazione di un prodotto multivelo in carta assorbente e prodotti cosi' ottenuto
WO2007016941A1 (fr) * 2005-08-08 2007-02-15 Sca Hygiene Products Gmbh Produit en papier de soie multicouches et son procede de production
ITPI20090010A1 (it) * 2009-02-02 2010-08-03 Guglielmo Biagiotti Prodotto cartaceo in velo ad elevata capacita' di assorbimento e metodo di realizzazione relativo.

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Publication number Priority date Publication date Assignee Title
DE69931631T2 (de) 1998-03-06 2007-05-16 Georgia-Pacific France Dreilagiges saugfähiges papierprodukt und verfahren zu seiner herstellung
EP1911574A1 (fr) * 2006-10-11 2008-04-16 Delicarta SPA Matériau papier doté d'un motif gaufré amélioré et son procédé de fabrication
WO2009080103A1 (fr) * 2007-12-20 2009-07-02 Sca Hygiene Products Gmbh Procédé et dispositif pour produire un film imprimé et gaufré
DE102014009320A1 (de) * 2014-06-27 2015-12-31 Metsä Tissue Oyj Vorrichtung zur Herstellung von Flächenprodukten

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110202842A (zh) * 2019-06-28 2019-09-06 佛山市南海区德昌誉机械制造有限公司 一种生活用纸的二次上胶复合压花机构

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