EP2353809B1 - Méthode et appareil pour la perforation de produits en bande bien que le produit résultant - Google Patents

Méthode et appareil pour la perforation de produits en bande bien que le produit résultant Download PDF

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Publication number
EP2353809B1
EP2353809B1 EP20100425025 EP10425025A EP2353809B1 EP 2353809 B1 EP2353809 B1 EP 2353809B1 EP 20100425025 EP20100425025 EP 20100425025 EP 10425025 A EP10425025 A EP 10425025A EP 2353809 B1 EP2353809 B1 EP 2353809B1
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EP
European Patent Office
Prior art keywords
roller
protuberances
contact
contact areas
rollers
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.)
Not-in-force
Application number
EP20100425025
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German (de)
English (en)
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EP2353809A1 (fr
Inventor
Carmine Di Benedetto
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.)
Pantex International SpA
Original Assignee
PANTEX INTERNAT SpA
Pantex International SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PANTEX INTERNAT SpA, Pantex International SpA filed Critical PANTEX INTERNAT SpA
Priority to EP20100425025 priority Critical patent/EP2353809B1/fr
Priority to PCT/EP2011/000343 priority patent/WO2011095298A1/fr
Priority to ARP110100386 priority patent/AR080138A1/es
Publication of EP2353809A1 publication Critical patent/EP2353809A1/fr
Application granted granted Critical
Publication of EP2353809B1 publication Critical patent/EP2353809B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/24—Perforating by needles or pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/06—Perforating by punching, e.g. with relatively-reciprocating punch and bed with punching tools moving with the work
    • B26F1/10—Roller type punches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0093—Details, accessories or auxiliary or special operations not otherwise provided for for embossing, forming, creasing, flange forming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet

Definitions

  • the present invention relates to the field of the production of films, sheets or webs in textile material, in non-woven fabric or other material, to be used mainly in domestic products for house cleaning or in hygiene and sanitary products.
  • the present invention relates to a method for perforating a film, sheet or web, preferably in non-woven fabric, to be used mainly in domestic products for house cleaning or in hygiene and sanitary products.
  • non-woven fabrics are widely used in many industrial sectors.
  • a sector, in which they are particularly widely used, is for example the sector of the production of domestic products for house cleaning or of hygiene and sanitary products.
  • diapers and sanitary napkins are substantially constituted by four elements that, starting from that into contact with the skin, are called: topsheet, sublayer, core and backsheet.
  • the topsheet for example, has the function of being crossed quickly by the liquids, and it must act as a barrier between the inner part of the diaper, which have captured the liquids, and the body, from which the liquid has been released. This function is the more effective, the more the material is thick and permeable. There is therefore the need to perforate the surface of the topsheet perpendicularly, thus obtaining cross channels for crossing the section.
  • An important aspect of this type of products is obviously the softness, as they are into direct contact with the skin.
  • a first type is defined "needles perforation”, and refers to a production method wherein a web of non-woven fabric is made cross the contact line of two counter-rotating rollers, the first of which is provided with needles arranged perpendicularly to the cylindrical surface, and the second is provided with complementary surface holes, suitable to receive the needles of the first one.
  • a second type is called "vacuum perforation" and refers to a production method, wherein a layer of very thin and hot film / web is arranged on a rotating roller having the surface micro perforated and depressurized on the inner part. Due to the difference of pressure between the inside and the outside of the roller, the web is subjected to a micro perforation.
  • a third type even if not much applied, relates to a "perforation through abrasion", and is described in US 3,408,776 .
  • the production method described in this patent document provides for the passage of a web of non-woven fabric between two rollers, a first roller provided with projections perpendicular to its surface, each with a head of diameter substantially equal to the diameter of the holes to be realized, and a second roller provided with an abrading surface, which must be less rigid and less hard than the projections.
  • the abrading roller rotates with a very higher speed than the speed of the roller with projections, that support the web and act as a contrast surface for the abrading roller.
  • the abrading roller "tears", for each projection, a piece of fabric substantially equal to the dimension of the head of the projection itself; this piece remains attached with one end to the periphery of the hole created on the web and is stabilized on the web through the heat caused by the abrasion (the not heated abrading roller).
  • a fourth type relates to a "mechanical perforation" of the web, and in particular it relates to a method described in the European patent document EP 0 598 970 and consists of two counter-rotating cylinders, one of which is smooth and the other is provided with protuberances, maintained into contact one with the other and having different peripheral speed (the smooth roller is slower than the roller with protuberances).
  • the protuberances make an impression on the web; thanks to the contemporaneous slipping between the protuberances and the smooth cylinder, due to the different speeds, when the impressions are produced also the perforation of the web occurs at these impressions.
  • the object of the present invention is to provide a method to produce films, sheets or webs of textile material, non-woven fabric or the like, which are perforated in a through manner and which are particularly soft.
  • a further object of the present invention is to provide a method for producing perforated films, sheets or webs, which is more economical relative to known methods.
  • a method for producing webs perforated in a through manner which comprises the passage of a web between two counter-rotating rollers pressing against each other, of which a first roller presents on its surface protuberances creating the perforation, and a second roller presents a contrast surface for these protuberances; the two rollers rotate with different speeds relative to each other, and a relative slipping consequently occurs between the contact surfaces of the two rollers.
  • the surface of the second roller presents contact areas for the protuberances, which are separated from each other by means of depressions.
  • the contact areas are formed for example by the end surfaces of the heads of projections coming out from the second roller, and the depressions present between these contact areas are defined by the spaces between these projections.
  • the protuberances drag on the contact areas, thus creating perforations on the web passing between the two rollers, which present dimensions substantially equal to that of the protuberances.
  • the space between the contact areas of the second roller (that, as stated, can be considered depressions between areas or spaces between projections) allows the material forming the web to expand, i.e. to swell, thus allowing obtaining a surprising softness of the web.
  • this softness is due also to the fact that in the second non perforated regions surrounding the perforated regions, the material of the web has not been into contact with both the surfaces, or it has been into contact with them less relative to the classical process, and therefore there is no stiffness by virtue of the process temperature.
  • the cross pitches (i.e. parallel to the axis of the rollers) of the protuberances of the first roller and of the contact areas of the second rollers are substantially different from each other; in this way the contact between areas and protuberances is assured.
  • the rollers are not "meshed" with each other, making the contact occur only between the contact areas (i.e. the end surface of the projections defining these areas) of the second roller with the end surfaces of the protuberances (i.e. without contact between the flanks of the projections and protuberances), actually allowing slipping between protuberances and areas belonging to the cylindrical surfaces of the respective rollers.
  • contact areas of the second roller delimited by the depressions which allow the expansion of the material, are of greater surface dimensions relative to the surface dimensions of the heads of the protuberances of the first roller, with which they come into contact.
  • the maximum width and / or the maximum length of each contact area shall be preferably at least double than an equivalent dimension of each protuberance.
  • these contact areas of the second roller are preferably completely surrounded by depressions, thus practically constituting contact "islands" separated from each other. These areas are preferably distributed in an homogeneous manner on the second roller, as well as the protuberances on the first roller.
  • the contact areas can have constant pitch on the surface of the second roller both in longitudinal direction and in cross direction; the same can occur for the protuberances of the first roller.
  • the ratio between the (longitudinal and / or cross) pitch between two contact areas of the second roller and the longitudinal and / or cross dimension of one of said areas is substantially comprised between 1.1 and 4, thus allowing to obtain a final web particularly homogeneous in terms of thickness and softness.
  • the ratio between the (longitudinal and / or cross) pitch between two contact areas of the second roller and the pitch between two protuberances of the first roller is substantially comprised between 1.5 and 10, thus allowing to obtain a final web with an optimum permeability relative to an optimum homogeneity in terms of thickness and softness.
  • the speed of the first roller with the protuberances can preferably vary from 20 m/min' to 200 m/min'; the second roller with the contact areas can preferably have a speed, and therefore a slipping, variable from 20% to 90% of that of the first roller with the protuberances.
  • the contact linear pressures between the two rollers can be preferably comprised between 40 N / mm to 200 N / mm
  • the two rollers are heated, the interval of the temperatures of the two rollers is comprised between 60° and 170°, adjustable independently (i.e. each roller can be set at a desired temperature inside this interval).
  • the types of webs which can be used can be for example in polypropylene fibers, bicomponents polypropylene-polyethylene, polyethylene-polyester, natural fibers such as cotton and viscose and polyethylene films.
  • the present invention also relates to an apparatus for producing perforated webs, sheets or films, which uses two rollers as described above.
  • the present invention also relates to a web, sheet or film produced through the method described above and suitable to allow the passage of liquids, which presents in particular areas on which through holes are present, delimited by regions of greater thickness relative to the thickness of said areas.
  • the method according to the present invention provides for the use of a pair of rollers 11 and 12, (called respectively first roller and second roller), counter-rotating and pressing against each other, which define in the contact region an entrance for a web 13 of non-woven fabric, such as for example a cohesive web of polypropylene fibers or bicomponents polypropylene-polyethylene or polypropylene-polyester or natural fibers such as cotton or viscose.
  • a pair of rollers 11 and 12 (called respectively first roller and second roller), counter-rotating and pressing against each other, which define in the contact region an entrance for a web 13 of non-woven fabric, such as for example a cohesive web of polypropylene fibers or bicomponents polypropylene-polyethylene or polypropylene-polyester or natural fibers such as cotton or viscose.
  • the first roller 11 is heated.
  • the working temperature depends, among the other things, upon the type of fiber, the process speed and other characteristics. In the described example this temperature is preferably comprised between 70° and 170° (for example 120°). Analogously, also the second roller 12 is heated at a temperature comprised between 70° and 170°.
  • the first roller 11 presents protuberances 14 on the surface, which are distributed in an homogeneous manner on the cylindrical development of the roller, and which project orthogonally relative to this cylindrical development.
  • these protuberances 14 are distributed according to equal circumferential series with constant pitch lying on planes perpendicular to the axis of the roller; adjacent series are mutually displaced by half pitch, as it is shown in figures 3 and 6 .
  • the cross section (i.e. related to a plane on which the axis of the roller lies) of a protuberance 14 has a shape similar to a trapezoidal shape, and more precisely it is similar to an equilateral trapezium, with the greater base facing the axis.
  • the protuberances 14, on which the web 13 to be perforated will come into contact present a shape similar to a truncated cone ending with an end face 14A, which is a cylindrical surface lying on the cylindrical surface of the respective roller.
  • the end faces 14A are delimited by small continuous circumferences.
  • the second roller 12 presents projections 15 developing orthogonally from its cylindrical core. These projections 15 present a head 15A, with cylindrical surface lying on the cylindrical surface of the second roller and suitable to come into contact with the end face 14A of the protuberances 14.
  • the projections 15 are distributed according to equal circumferential series with constant pitch lying on planes perpendicular to the axis of the second roller 12; adjacent series are displaced from each other by half pitch.
  • Both the cross pitch and the longitudinal pitch of the protuberances 14 of the first roller 11 are substantially different from the relative pitches of the projections 15 of the second roller 12; in this way the contact is ensured between the end surfaces 15A of the heads of the projections 15 and ends 14A of the protuberances 15.
  • both the projections 15 and the protuberances 14 have the shape of a truncated cone facing the opposite roller.
  • the end surfaces 15A of the heads of the projections 15 practically lie on a surface with cylindrical development and constitute contact areas for the ends of the protuberances 14.
  • the spaces 16 between the projections 15 practically constitute depressions surrounding the contact areas (that are also indicated with the reference number 15A) of the second roller 12 with the projections 14 of the first roller 11.
  • the second roller can therefore be seen as a rotor, from which projections develop, or as a rotor with greater diameter, with cylindrical surface subdivided in contact areas 15A separated through depressions 16.
  • the contact areas are completely surrounded by these depressions and practically constitute "islands" separated from each other.
  • each contact area 15A is at least double the diameter of each end surface 14A of the protuberances 14.
  • the number of the contact areas 15A per cm 2 is preferably comprised between 3 and 30, whilst the number of protuberances per cm 2 is comprised between 20 and 200.
  • the ratio between the pitches of the contact areas 15A and of the protuberances 14 is preferably comprised between 1.5 and 10.
  • An example of second roller can provide for instance for ellipsoidal contact areas, whose cross pitch is equal to nearly 5.11 mm, the cross dimension of the ellipsoidal area is equal to nearly 4.00 mm, and consequently the ratio thereof is equal to about 1.27.
  • the longitudinal pitch is equal to about 8.05 mm
  • the longitudinal dimension of the area is equal to nearly 3.6 mm
  • the ratio thereof is equal to nearly 2.23.
  • the number of areas per cm 2 is equal to nearly 4.9 and the surface of the areas per cm 2 is equal to nearly 0.489.
  • first roller i.e. that provided with protuberances
  • first roller provides for a cross pitch between protuberances equal to nearly 1.2 mm, a cross dimension of the protuberances equal to about 0.76 mm, and the consequent ratio equal to nearly 1.56.
  • the longitudinal pitch between protuberances is equal to about 2.08 mm
  • the longitudinal dimension of the protuberances is equal to nearly 0.75 mm
  • the ratio thereof is equal to nearly 2.77.
  • the number of protuberances per cm 2 is equal to nearly 80 and the surface of the areas per cm 2 is equal to nearly 0.359.
  • the hardness of the materials composing the two cylinders into contact is substantially equivalent, as well as their rigidity value.
  • the contact surfaces of the two rollers are smooth, preferably ground.
  • first roller 11 rotates with a greater speed relative to the second roller 12, so that the contact surfaces of the two rollers are in slipping.
  • speeds of the two rollers are respectively 70 m/min for the first cylinder and 50 m/min for the second cylinder, and the relative slipping is equal to 30%.
  • the linear pressure between the two rollers is preferably comprised between 40N per mm and 200N per mm.
  • the web is made pass through the contact region between the two rollers 11 and 12, which rotate with different speed (the first roller 11 rotates faster than the second roller 12).
  • the contact areas 15 act as a contrast surface for the protuberances 14. Whilst the protuberances 14 move towards the areas 15, the web is perforated by the protuberances at the contact with the areas 15, the protuberances make a slipping, which completes the perforation operation, allowing creating discontinuity on the web.
  • the material of the web tends to go up the spaces defined by the depressions between the areas 15, increasing in thickness. These regions are spaced by the holes just made, and therefore present a temperature lower than the contour regions of the holes.
  • these "swollen" regions present a greater softness than the contours of the holes. It is clear that the more the holes are contained inside well delimited regions (i.e. between these regions provided with a plurality of holes no other holes must be present) the greater the softness.
  • Figure 5 and figure 6 show diagrams of a pair of rollers, wherein the number of protuberances 14 is lower than in the case of figures 2 and 3 (with equal dimension of the contact areas 15).
  • the shape of the protuberances and of the contact areas can be different than that indicated, for example they can have polygonal shape or ellipsoidal shapes or also elongated shapes, and they can also be constituted by "band” or "strip” surface portions.
  • pitch between contact areas and between protuberances can be different from that indicated, for example it can be different between longitudinal direction and cross direction, or it can also be not constant in cross direction.
  • Figure 7 shows an example of a portion of web 13 perforated according to the method and the apparatus described above.
  • This web 13 presents a plurality of regions 17 with dimensions and shape substantially corresponding to the contact areas 15 of the roller 12, in which are present a plurality of through holes 18 with dimensions and shape substantially corresponding to that of the end surfaces 14A of the protuberances 14 of the first roller 11.
  • the perforated regions 17 are surrounded and spaced from each other by unperforated regions 19. These unperforated regions 19 present a greater thickness relative to the thickness of the perforated regions 17.
  • the thicknesses have been exaggerated to highlight the difference thereof. This difference in thickness is less visible practically, for instance it is comprised between 1 to 4 times the thickness of the regions 17.
  • the types of webs which can be perforated by means of the described method can be extremely various, and can comprise continuous films, non-woven fabrics, sheets in different material, both synthetic and natural, both woven, non-woven, sized, etcetera.
  • the fibers which can be used can be both synthetic and natural.
  • the webs can be consolidated or not, carded or not, etcetera. Examples can relate to webs of the type thermobonded, spunbonded, airthrough, spunlaces, polyethylene films and combinations thereof.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)

Claims (15)

  1. Procédé pour fabriquer des bandes perforées de façon débouchante, comprenant le passage d'une bande (13) entre deux rouleaux contrarotatifs (11, 12) appuyant l'un contre l'autre, dont le premier rouleau (11) présente, sur sa surface des protubérances (14) qui créent la perforation, et un second rouleau (12) présente une surface de contraste pour lesdites protubérances (14), lesdits rouleaux (11, 12) tournant selon différentes vitesses avec un glissement relatif conséquent, caractérisé en ce que la surface de contraste dudit second rouleau (12) présente des zones de contact (15A) pour lesdites protubérances (14), qui sont séparées les unes des autres par des creux (16), dans lesquels le matériau de la bande s'agrandit ; lesdites zones de contact (15A) possédant des dimensions de surface supérieures à celles de la face de contact (14A) desdites protubérances (14).
  2. Procédé selon la revendication 1, caractérisé en ce que ledit second rouleau (12) tourne avec une vitesse inférieure à la vitesse dudit premier rouleau (11).
  3. Procédé selon la revendication 2, caractérisé en ce que le glissement en pourcentage des deux rouleaux (11, 12) est compris entre 10 % et 90 % de la vitesse du premier rouleau (11) avec les protubérances (14).
  4. Procédé selon la revendication 3, caractérisé en ce que la vitesse dudit premier rouleau (11) est comprise entre 20 m/min et 200 m/min, de préférence égale à 70 m/min, alors que la vitesse dudit second rouleau (12) est comprise entre 10 % et 90 % de la vitesse du premier rouleau (11), de préférence égale à 30 %.
  5. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que lesdites zones de contact (15A) sont complètement entourées par lesdits creux (16) pour former des îlots de contact pour lesdites protubérances (14).
  6. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que lesdites protubérances (14) et lesdites zones de contact (15A) présentent un pas longitudinal sensiblement constant ; le pas longitudinal desdites protubérances (14) étant différent du pas longitudinal desdites zones de contact (15A).
  7. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le rapport entre le pas longitudinal et/ou transversal entre deux zones de contact (15A) du second rouleau (12) et le pas entre deux protubérances (14) du premier rouleau (11) est sensiblement compris entre 1,5 et 10.
  8. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que lesdites protubérances (14) et/ou lesdites zones de contact (15A) sont distribuées de manière homogène sur le développement cylindrique des rouleaux respectifs, dans des séries circonférentielles respectives déplacées dans une direction transversale par rapport à des séries adjacentes.
  9. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la largeur maximum et/ou la longueur maximum de chaque zone de contact (15A) sera au moins le double d'une dimension équivalente de la face (14A) de glissement de chaque protubérance (14).
  10. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que lesdites zones de contact (15A) et les faces d'extrémité (14A) desdites protubérances se trouvent sur des surfaces respectives sensiblement cylindriques.
  11. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la dureté des matériaux composant les parties des deux rouleaux (11, 12) en contact est sensiblement équivalente, ainsi que leur valeur de rigidité.
  12. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que les deux surfaces de contact des deux rouleaux (11, 12) sont lisses, de préférence polies.
  13. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le nombre de zones de contact (15A) par cm2 est de préférence compris entre 3 et 30, alors que le nombre de protubérances par cm2 est compris entre 20 et 200.
  14. Appareil pour perforation débouchante d'une bande, d'un film ou d'une feuille, fonctionnant selon le procédé selon une ou plusieurs des revendications précédentes, comprenant une paire de rouleaux contrarotatifs (11, 12) appuyant l'un contre l'autre, dont un premier rouleau (11) présente, sur sa surface, des protubérances (14) qui créent la perforation, et un second rouleau (12) présente une surface de contraste pour lesdites protubérances (14), lesdits rouleaux (11, 12) tournant selon des vitesses différentes avec un glissement relatif conséquent, caractérisé en ce que la surface dudit second rouleau (12) présente des zones de contact (15A) pour lesdites protubérances (14), qui sont séparées les unes des autres par des creux (16), dans lesquels le matériau de la bande (13) s'agrandit ; lesdites zones de contact (15A) étant de dimensions de surface supérieures à celles de la face de contact (14A) desdites protubérances (14).
  15. Bande dans matériau textile ou tissu non tissé, comprenant une pluralité de premières régions (17) dans lesquelles une pluralité de trous débouchants (18) sont présents, caractérisée en ce que lesdites premières régions (17) sont entourées et espacées les unes des autres par des secondes régions non perforées (19), qui présentent une épaisseur plus épaisse par rapport à l'épaisseur desdites premières régions (17), une telle bande pouvant être obtenue par un procédé selon une ou plusieurs des revendications précédentes.
EP20100425025 2010-02-05 2010-02-05 Méthode et appareil pour la perforation de produits en bande bien que le produit résultant Not-in-force EP2353809B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20100425025 EP2353809B1 (fr) 2010-02-05 2010-02-05 Méthode et appareil pour la perforation de produits en bande bien que le produit résultant
PCT/EP2011/000343 WO2011095298A1 (fr) 2010-02-05 2011-01-26 Procédé et appareil pour produire des bandes continues perforées d'une manière traversante et produit ainsi obtenu
ARP110100386 AR080138A1 (es) 2010-02-05 2011-02-04 Metodo para producir tejidos perforados de manera pasante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20100425025 EP2353809B1 (fr) 2010-02-05 2010-02-05 Méthode et appareil pour la perforation de produits en bande bien que le produit résultant

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EP2353809A1 EP2353809A1 (fr) 2011-08-10
EP2353809B1 true EP2353809B1 (fr) 2012-08-22

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EP20100425025 Not-in-force EP2353809B1 (fr) 2010-02-05 2010-02-05 Méthode et appareil pour la perforation de produits en bande bien que le produit résultant

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EP (1) EP2353809B1 (fr)
AR (1) AR080138A1 (fr)
WO (1) WO2011095298A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20130254A1 (it) * 2013-10-23 2015-04-24 Pantex Internat S P A "prodotto laminato forato e metodo per produrre tale prodotto"
US11166854B2 (en) 2014-04-08 2021-11-09 Pantex International Spa Method for producing a perforated web and product for a sanitary absorbent article thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3408776A (en) 1965-03-05 1968-11-05 Johnson & Johnson Method for producing perforated sheet materials
EP0598970B2 (fr) 1992-11-17 2000-04-05 PANTEX S.r.l. Méthode et dispositif pour la fabrication d'une membrane ou d'une pellicule pour l'enrobage de serviettes hygiéniques ou de couches-culottes ou pour des systèmes de filtration ou similaires

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EP2353809A1 (fr) 2011-08-10
AR080138A1 (es) 2012-03-14
WO2011095298A1 (fr) 2011-08-11

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