EP1625013A1 - Vorrichtung und verfahren zur herstellung von mehrlagigen bahnförmigen produkten - Google Patents
Vorrichtung und verfahren zur herstellung von mehrlagigen bahnförmigen produktenInfo
- Publication number
- EP1625013A1 EP1625013A1 EP04731706A EP04731706A EP1625013A1 EP 1625013 A1 EP1625013 A1 EP 1625013A1 EP 04731706 A EP04731706 A EP 04731706A EP 04731706 A EP04731706 A EP 04731706A EP 1625013 A1 EP1625013 A1 EP 1625013A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ply
- cylinder
- guide roller
- protuberances
- roller
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0707—Embossing by tools working continuously
- B31F2201/0715—The tools being rollers
- B31F2201/0753—Roller supporting, positioning, driving means
-
- 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
- B31F2201/0784—Auxiliary operations
- B31F2201/0787—Applying adhesive
Definitions
- the present invention relates to a device for producing a multi-ply web material, and a method for producing said material.
- the plies are embossed, that is subjected to deformation by means of feeding each ply between an embossing roller provided with protuberances and a pressure roller. Subsequently, after applying a glue to at least one of the two plies, on the most projecting part of its embossing, the two plies are joined by lamination.
- embossing-laminating devices employed for this type of production are described in US-A-3,414,459; US-A-4,978,565; US-A- 5,173,351 ; US-A-5,096,527; US-A-3,961 ,119; WO-A-9720687; WO-A- 9720688; WO-A-9720689; GB-A-1 ,225,440; US-A-3,694,300; WO-A- 9618771 ; US-A-4,320, 162.
- WO-A-9944814 describes a deyice for performing embossing and gluing of two or more plies, provided with: an embossing cylinder equipped with protuberances, cooperating with which are a first pressure roller, to emboss a first ply of web material, a glue dispenser, and a second roller defining with the embossing cylinder a lamination nip, wherein the first embossed and glued ply is joined through lamination to a second ply.
- a device of this type a web product with at least two plies, at least one of which is embossed, is obtained.
- Pre-embossing units are also provided to carry out background embossing on the two plies, which is added to the embossing performed by the embossing cylinder in combination with the pressure roller.
- US-A-3,673,052 describes a device for performing embossing and gluing of two plies of paper material. A first ply is embossed between two embossing rollers, fed around an idle guide roller and around a gluing roller equipped with a rubber coating with a series of protuberances. The ply lies on the protuberances and is provided with glue by means of a glue-dispensing roller in the areas corresponding to said protuberances.
- a joining roller cooperates with the gluing roller forming therewith a lamination nip, through which both the first ply, provided with glue, and a second previously embossed ply are fed.
- WO-A-0242061 describes a device for producing gluing in points or areas between two plies of web material. For this purpose a first ply is fed into a nip between a pressure roller and a cylinder equipped with protuberances. The dimensions of the protuberances, the pressure exerted by the pressure roller and the hardness thereof are selected so as to impress a minimum deformation, essentially invisible, on the ply at the level of the protuberances of the cylinder. Deformation is nonetheless sufficient to make the areas of the ply that are to receive glue project with respect to the surrounding surface.
- the object of the present invention is to produce a device capable of producing a multi-ply web material glued in areas, wherein the glue can (if required) be invisible.
- the object of an improved embodiment of the invention is to produce a device of this type that is also capable of producing -with small adjustments if necessary - an embossed multi-ply web material.
- a device for joining at least two continuous plies to form a web material comprising:
- the guide roller is motorized and has at least a first operating position, wherein it does not press against said cylinder. Moreover, the peripheral speeds of the guide roller and of the cylinder are controllable in order to tension the first ply fed around the cylinder.
- the surface of the guide roller has a high coefficient of friction, for example obtainable with a coating in rubber or another yielding material and with a high coefficient of friction.
- the device of the invention it is possible to obtain a multi-ply material simply glued in areas, tensioning the first ply between the motorized guide roller and the motorized cylinder provided with protuberances, maintaining the roller and the cylinder at a distance from each other.
- the tension is imparted by controlling the peripheral speeds of the aforesaid two elements.
- the ply is thus stretched and deformed on the protuberances or projections of the cylinder, so that the portions thereof which rest on the protuberances of the cylinder have a radially projection to a greater extend with respect to the surrounding surface.
- the glue dispenser applies the glue in these areas.
- Deformation is sufficiently low to remain within the elastic range, so that when the ply is released, eliminating the tension applied thereto, the ply returns to its original form and essentially has no embossing, or is embossed from a previous embossing operation, but not by the motorized cylinder provided with protuberances that was used for gluing.
- the pressure roller or laminating roller has a sufficiently hard surface, with respect to the pressure with which it is pressed against the motorized cylinder, so that it does not deform the two plies to any relevant extent, so that these plies are essentially smooth (or provided solely with any patterns received before entering the gluing device described), except for local deformation caused between the laminating roller and the projections of the cylinder.
- the glue can thus be essentially invisible.
- colored glue can be used. In this case it provides an effect analogous to a print.
- the use of colored glue is already known, although it is currently applied at the level of an embossed pattern so that printing is necessarily combined with embossing that has at least some parts in common with the printed parts.
- the device can operate as an embossing-laminating device in an analogous way to the one described, for example, in WO-A-9944814.
- the guide roller can be operated in rotation at a controlled speed, or left free to rotate idle on its supports and drawn in rotation by friction by the cylinder cooperating with it. If necessary, the cylinder provided with protuberances can be replaced, to adopt forms and distributions of the protuberances that are more suitable in the two operating modes.
- the invention also relates to a method for implementing gluing of at least two plies, wherein:
- a first ply is fed around a cylinder provided with protuberances and deformed at the level of said protuberances;
- the method tensions the first ply along the contact area with the cylinder, to cause temporary deformation of the first ply at the level of said protuberances.
- the first ply is tensioned between a guide roller and said cylinder, acting on the peripheral speed of said guide roller and of said cylinder.
- Figure 1 is a diagram of the device according to the invention, in a first operating mode;
- Figure 2 is a local section according to ll-ll in Figure 1;
- Figure 3 is a schematic portion in a view according to Ill-Ill in Figure 1 , of a product obtained with the device in the operating mode in Figure 1;
- Figure 4 is an enlarged schematic section according to the line IV-IV in Figure 3;
- Figure 5 is a view analogous to the view in Figure 1, in a different operating mode;
- Figure 6 is a schematic cross section of the product obtained in the operating mode in Figure 5. Detailed description of the preferred embodiment of the invention
- Figure 1 shows a schematic side view of the device, indicated as a whole with 1.
- the device has two paths for a first ply V1 of web material and a second ply V3 of web material, which are joined together in the way described hereunder to form the multi-ply material indicated as a whole with N.
- a guide roller 3 Disposed along the first path for the ply V1 is a guide roller 3 provided with a coating in a yielding and elastic material with a high coefficient of friction, indicated with 3A, for example rubber.
- the guide roller 3 is motorized and can rotate at a suitably controlled peripheral speed.
- a cylinder 5 for example in steel or another relatively hard material, provided with a series of protuberances.
- the protuberances are indicated with 5P (see in particular also Figure 2) and have an annular conformation, particularly advantageous when the device assumes the operating layout shown in Figure 1 , for reasons that will become apparent hereunder.
- the cylinder 5 is motorized and its peripheral speed can be suitably controlled, so that the portion of the ply V1 disposed along the path between the guide roller 3 and the cylinder 5 can be tensioned to the required value.
- the roller 3 and the cylinder 5 have a distance between axes according to which these elements are detached from each other and do not press against each other.
- roller 3 is supported movably by means of arms 4, to be able to assume - alternatively to the position shown in Figure 1 - a position wherein it presses against the cylinder 5, said position being shown in Figure 5 and which will be described hereunder.
- the cylinder 5 cooperates with a glue dispenser indicated as a whole with 7, per se known and not described.
- the glue dispenser 7 applies glue to defined and delimited areas of the ply V1 fed around the cylinder 5, and more precisely to the areas found at the level of the protuberances 5P of said cylinder 5.
- a pressure roller 9 disposed downstream of the dispenser 7 with respect to the direction of rotation of said cylinder, and therefore in respect of the direction of advance of the ply V1 , is a pressure roller 9, supported idle and drawn in rotation by the friction produced between said roller and the cylinder 5, the roller 9 and the cylinder 5 being pressed against each other.
- the pressure roller 9 is coated with a coating 9A in a relatively hard material, for example a rubber with a hardness greater than the hardness of the rubber forming the coating 3A of the roller 3.
- the hardness of the coating 9A of the roller 9 is chosen so that with the pressure produced between the roller 9 and the cylinder 5 the web material that passes through the nip between these two elements essentially is not subjected to any permanent embossing deformation.
- the roller 9 can also be produced with an external surface in steel, rather than hard rubber. In this case it can advantageously be motorized, rather than drawn in rotation through friction by the cylinder 5.
- the ply V3 which along its path is fed around a roller 11 disposed upstream of the nip and having the function of tensioner of the ply V3, is also fed through the nip defined between the cylinder 5 and the roller 9.
- the tensioner roller 11 can advantageously be coated in rubber or another material with a high coefficient of friction. It can be drawn in rotation at a controlled speed, or it can be braked with a controllable braking moment, or can simply even have a movable axis. In general, it has the function of controlling the tension of the ply V3, so that said ply has a more suitable tension value in relation to the tension of the ply V1. Operation of the device described hereinbefore is as follows.
- the web material V1 is fed along its path and fed around the motorized guide roller 3. Between this roller and the cylinder 5 the ply V1 is tensioned through the effect of a controlled difference in peripheral speed between the guide roller 3 and the cylinder 5. In this way, thanks to the tension in a longitudinal direction on the ply V1 , the latter rests on the annular protuberances 5P of the cylinder 5 and is deformed as shown schematically in Figure 2. In this way, the areas of the ply V1 corresponding to the projections or annular protuberances 5P are in a radially projecting position with respect to the surrounding areas of said ply.
- the deformation imparted on the ply V1 by the tension applied by means of the difference in peripheral speed of the roller 3 and of the cylinder 5 is temporary, that is, once the ply slackens, downstream of the nip between the roller 9 and the cylinder 5, it returns to the original form, which is normally smooth unless the material has been processed upstream to obtain a different conformation.
- the tensioner roller 11 ensures that along the portion between said roller 11 and the pressure roller 9 the ply V3 has a suitable tension with respect to the tension of the ply V1 , for example a tension essentially equal to the tension of the ply V1 to guarantee optimum lamination and gluing.
- the device described as a normal embossing-gluing device is shown in Figure 5.
- the guide roller 3 in this case is pressed against the cylinder 5 and drawn in rotation through friction by said cylinder 5.
- the motorization on the guide roller 3 is disengaged, for example by providing between the motor and the roller a friction clutch device, a coupling or in another suitable way (not shown).
- the cylinder 5 can in this case have protuberances 5P of a different shape, for example no longer annular and continuous, but protuberances forming elements isolated from one another.
- the extension of the protuberances is essentially parallel to the direction of advance of the material of the ply V1 , that is, to be a preferably continuous annular extension, as this form allows the best temporary deformation to be obtained through tensioning of the ply V1.
- the device according to the invention can operate as a normal embossing-gluing unit or, with small adjustments, as a simple reciprocal gluing device between two plies forming the web material N.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Chutes (AREA)
- Making Paper Articles (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000135A ITFI20030135A1 (it) | 2003-05-15 | 2003-05-15 | Dispositivo per la produzione di manufatti nastriformi |
PCT/IT2004/000254 WO2004101267A1 (en) | 2003-05-15 | 2004-05-07 | Device for producing multi-ply web products and relative method |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1625013A1 true EP1625013A1 (de) | 2006-02-15 |
EP1625013B1 EP1625013B1 (de) | 2007-01-03 |
Family
ID=33446423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04731706A Expired - Lifetime EP1625013B1 (de) | 2003-05-15 | 2004-05-07 | Vorrichtung und verfahren zur herstellung von mehrlagigen bahnförmigen produkten |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1625013B1 (de) |
AT (1) | ATE350216T1 (de) |
BR (1) | BRPI0410644A (de) |
DE (1) | DE602004004104T2 (de) |
ES (1) | ES2278318T3 (de) |
IT (1) | ITFI20030135A1 (de) |
WO (1) | WO2004101267A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2326500B1 (de) * | 2008-08-07 | 2016-11-02 | SCA Hygiene Products GmbH | Vorrichtung und verfahren zur lagenverbindung sowie mehrlagiges produkt |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009117794A1 (en) * | 2008-03-24 | 2009-10-01 | Wagner Do Brasil Ltda | Process of manufacturing a multilayer absorbent product and product obtained |
DK2687383T3 (en) | 2012-07-18 | 2016-02-15 | Ardagh Mp Group Netherlands Bv | Embossing the flat metal blank (method and apparatus) |
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 |
IT201800006097A1 (it) * | 2018-06-07 | 2019-12-07 | Metodo e macchina per goffratura e calandratura di carta tissue e prodotto ottenuto | |
IT202200002726A1 (it) * | 2022-02-15 | 2023-08-15 | Koerber Tissue S P A | Metodo di goffratura e gruppo goffratore-laminatore per materiale cellulosico multivelo |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3673026A (en) * | 1970-01-12 | 1972-06-27 | Int Paper Co | Method for the manufacture of laminated fabrics |
DE2031498A1 (en) * | 1970-06-25 | 1972-01-05 | Paper Converting Machine Company, Inc., Green Bay, Wis. (V.StA.) | Paper towel manufacture - with pattern cylinder glue application |
US4000242A (en) * | 1972-07-26 | 1976-12-28 | Crown Zellerbach Corporation | Web material treating system including an inflatable platen roller |
US6368539B1 (en) * | 1999-07-30 | 2002-04-09 | Potlatch Corporation | Methods of embossing materials |
IT1314877B1 (it) * | 2000-11-22 | 2003-01-16 | Perini Fabio Spa | Metodo e dispositivo per la produzione di un materiale cartaceo infoglio plurivelo e prodotto cosi'ottenuto |
-
2003
- 2003-05-15 IT IT000135A patent/ITFI20030135A1/it unknown
-
2004
- 2004-05-07 WO PCT/IT2004/000254 patent/WO2004101267A1/en active IP Right Grant
- 2004-05-07 DE DE602004004104T patent/DE602004004104T2/de not_active Expired - Lifetime
- 2004-05-07 EP EP04731706A patent/EP1625013B1/de not_active Expired - Lifetime
- 2004-05-07 ES ES04731706T patent/ES2278318T3/es not_active Expired - Lifetime
- 2004-05-07 BR BRPI0410644-0A patent/BRPI0410644A/pt not_active Application Discontinuation
- 2004-05-07 AT AT04731706T patent/ATE350216T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2004101267A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2326500B1 (de) * | 2008-08-07 | 2016-11-02 | SCA Hygiene Products GmbH | Vorrichtung und verfahren zur lagenverbindung sowie mehrlagiges produkt |
Also Published As
Publication number | Publication date |
---|---|
DE602004004104D1 (de) | 2007-02-15 |
DE602004004104T2 (de) | 2007-07-19 |
BRPI0410644A (pt) | 2006-07-04 |
ATE350216T1 (de) | 2007-01-15 |
ITFI20030135A1 (it) | 2004-11-16 |
ES2278318T3 (es) | 2007-08-01 |
EP1625013B1 (de) | 2007-01-03 |
WO2004101267A1 (en) | 2004-11-25 |
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