WO2010010588A2 - Procédé et appareil de production de tissu gaufré - Google Patents

Procédé et appareil de production de tissu gaufré Download PDF

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Publication number
WO2010010588A2
WO2010010588A2 PCT/IT2009/000310 IT2009000310W WO2010010588A2 WO 2010010588 A2 WO2010010588 A2 WO 2010010588A2 IT 2009000310 W IT2009000310 W IT 2009000310W WO 2010010588 A2 WO2010010588 A2 WO 2010010588A2
Authority
WO
WIPO (PCT)
Prior art keywords
embossing
station
paper
paper ply
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.)
Ceased
Application number
PCT/IT2009/000310
Other languages
English (en)
Other versions
WO2010010588A3 (fr
Inventor
Stefano Petri
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.)
Futura SpA
Original Assignee
Futura 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 Futura SpA filed Critical Futura SpA
Publication of WO2010010588A2 publication Critical patent/WO2010010588A2/fr
Publication of WO2010010588A3 publication Critical patent/WO2010010588A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B31F2201/0758—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0784—Auxiliary operations
    • B31F2201/0792—Printing

Definitions

  • the present invention relates to a method and a device for the production of embossed web material, particularly of the type comprising two or more glued paper plies.
  • embossing in the production of items such as paper towels, toilet paper, paper napkins and the like, a paper web material is subjected to embossing to increase its apparent thickness, in order to improve the characteristics of absorption and also for aesthetic reasons.
  • the web material is made up of two or more plies of paper which are embossed and then joined by gluing.
  • the embossing is done by means of units including embossing cylinders fitted with metal spikes which provoke corresponding effects on a paper web travelling at a preset speed.
  • the glueing is performed by groups including a tank for the glue and a series of rollers that remove the glue from the tank and distribute the glue on the web subjected to embossing.
  • the embossing provokes the breaking of the paper fibers and consequently the production of paper dust. Therefore, on the rollers of the glueing groups as well as in the respective tanks there is the formation of pastes whose effects on the functioning of the system are strongly negative. Accordingly, the glueing groups must be subjected to frequent cleaning and maintenance and it is necessary to provide for use constant and intensive filtration of the glue. This is inconsistent with the current production requirements, since the cleaning maintenance and filtration operations are expensive, skilled personnel is required and such operations can lead to long stops of the production lines.
  • One aim of the present invention is to reduce the above-mentioned drawbacks.
  • Another objective of the present invention is to propose a method and a device for distributing glue on paper webs in a manner which permits the achievement of particular aesthetic or decorative effects while the glueing is executed.
  • This result has been achieved, according to the present invention, by adopting the idea to realize a device and a method having the characteristics described in the independent claims. Further characteristics of the present invention are the object of the dependent claims. Thanks to the present invention, the glueing groups are much less affected by the formation of paste previously mentioned, which require less frequent maintenance and less intensive filtering of the glue. Furthermore, the present invention makes it possible to produce paper webs consisting of multiple overlapping paper plies on which special decorative effects are visible.
  • FIG. IA schematically represents a device in accordance with the present invention, in which three plies of paper are worked, with two embossing units featuring embossers with pyramid engravings and two glueing units which are both active;
  • Fig. IB is a schematic top view of a paper web material leaving the device shown in Fig. IA;
  • Fig.2A schematically represents a device as in Fig.l, where, however, only one glueing unit is active;
  • Fig.2B is a schematic top view of a paper web material leaving the device shown in Fig.2A;
  • Fig.3 schematically represents a device as in Fig.l, wherein two paper plies are worked and only one glueing unit is active;
  • Fig.4 represents a schematic perspective view of an applicator roller (RA) of a glueing unit according to a possible execution form
  • Fig.5 schematically represents an engraved roller (RI) according to possible execution form
  • FIGs. 6 and 7 schematically represent further effects visible on the product leaving a device in accordance with the present invention
  • Fig.8 represents a scheme concerning a further example of use of the present invention.
  • a device according to the present invention can be used for embossing and bonding of two or more plies or ribbons of paper (1, 2, 3) which, when embossing and bonding are executed, constitute a multilayer web material in which each of the said plies (1, 2, 3) represents a corresponding layer of the finished product.
  • the latter can be used to make, for example, paper towels, toilet paper and similar products.
  • a device in accordance with the present invention includes a first operating station (C) with at least one glueing or sizing unit and a second operating station (G) with at least one embossing unit, in which a 1 paper ply advances between the first station (C) and the second station (G) along a path that separates these stations, and in which the said first station (C) is upstream of the second station (G) with respect to the paper advancing direction.
  • the glueing or sizing station (C) may be present, or active or used, one or two glueing units (4, 40) .
  • the glueing units (4, 40) are of the known type, i.e. of the type comprising a tank (S) containing glue, a roller (RA) which applies the glue on the paper plies coming into contact with it, and a distributor roller (RD) , which is located between the tank (S) and the applicator roller (RA) and removes the glue from the tank and distributes it to, by contact, on the surface of the applicator roller.
  • the said units (4, 40) are superimposed, to form an upper glueing unit (4) and a lower glueing unit .
  • embossing station (G) may be present, or active or used, one or two embossing units (5, 50) .
  • the embossing units (5, 50) are also of the known type, i.e. of the type comprising a roller (RE) with an elastic outer surface and a roller (RI) with a rigid engraved outer surface arranged to form a nip through which a paper ply can pass so that, as a result of its transit between the rollers (IR, IR) it is correspondingly embossed.
  • the said embossing units (5, 50) are arranged so that the respective engraved rollers (RI) are superimposed, to form a nip through which two or more paper plies can pass.
  • the roller (RA) and (RD) as the cylinders (RE) and (RI) are horizontal, i.e. they are are oriented transversely to the direction followed by the paper plies inside the device.
  • the glueing station (C) comprises two glueing units (4, 40) and the embossing station (G) consists of two embossing units (5, 50) which are superimposed. All the units (4, 40, 5, 50) are in use.
  • the plies of paper (1, 2, 3) being treated three in number.
  • a first ply (1) is embossed by the first embossing unit (5), a second ply (2) is glued, passing on the final roller (RA) of both the glueing units (4, 40), and a third ply ( 3) is embossed by the other embossing unit (50).
  • the arrows "Fl", “F2” and “F3" indicate the advancing direction of the paper plies (1, 2, 3) .
  • the second ply (2) is driven by a series of driving rollers (6, 60) and is thus forced to follow a path that brings it at the glueing station (C) where the same ply comes into contact with the applicator rollers (RA) of both units (4) and (40) .
  • the said driving rollers (6, 60) are oriented parallel to the above mentioned roller (RA, RD) and cylinders (RE, RI) and on the last of them, which is indicated by the numeral reference (60) in the drawings, the ply (2) is driven while it is in contact with the applicator rollers (RA) of the glueing station (C) .
  • the ply (2) is glue by virtue of its contact with the rollers (RA) , it is simultaneously driven by the driving roller (60) .
  • the latter is positioned at a predetermined distance from the embossing station (G) so that, once glued, the ply (2) advances along a path (T) of predetermined length that separates the glueing station (C) from the embossing station ( G) .
  • the normal advancing speed of the paper plies and the normal composition of the glue contained in the tanks (S) are such that during the transit from the glueing station (C) to the embossing station (G) the glue applied to the ply (2) does not dry.
  • the first ply (1) is embossed by the embossing unit (5)
  • the second ply (2) is sized by passing on the applicator rollers (RA) , first on the applicator roller of the lower unit (40) and then on the applicator roller of the upper unit (4 )
  • the third ply is embossed by the embossing (50)
  • the glued ply (2) and the embossed plies (1, 3) pass all in the nip between the engraved rollers (RI) and then in another nip, formed by the engraved roller (RI) of the upper embossing unit (5) and a pressure roller (7) .
  • the bonding occurs as a result of the pressure exerted by the pressure roller (7) on the paper plies leaving the station (G) .
  • glue it is meant the distribution of adhesive on one side of a paper ply (in the example, the paper ply marked by the reference number "2”) .
  • the said applicator rollers (RA) may be provided with reliefs or "stamps” (eg reliefs "F” having the shape of a leaf as in the attached drawings) and the glue contained in the tanks (S) can be colored.
  • the reliefs of the roller (RA) can be differentiated so that the roller (RA) of the upper glueing unit (4) can be differently shaped or sized compared to the those of the roller (RA) of the lower glueing unit (40) . In this case, as shown in Fig.
  • the overall effect is different: on the portion of the web (8) shown in Fig.2B only one leaf is visible (it is due to the reliefs of the roller RA of the unit 4) .
  • the diagram shown in Fig.3 is the same as that of Fig.2 but, in this case, the finished product (8) is a web formed by two plies (1, 2) .
  • the overall visible effect on the upper ply (1) of the finished product is identical to that shown in Fig.2B.
  • One of the engraved rollers (RI) may be provided with further reliefs (RR) , in addition to the reliefs or micro-relief (for example pyramidal reliefs RP as previously mentioned) that are normally provided to execute the embossing.
  • the said further releiefs (RR) may have the shape of irregular segments, as shown schematically in Fig.5. In this case, as shown in
  • the treatment of paper plies to be overlapped and joined together by glueing provides, therefore, a step of sizing or glueing a paper ply performed in a sizing or glueing station (C) placed at a predetermined distance from an embossing station
  • the said glueing step is not executed at the embossing station as happens in conventional devices, in which an applicator roller of a glueing unit acts directly on a paper ply which, while the glueing takes place, is close to an engraved roll of an embossing unit.
  • the glue is applied on the paper ply while this is far from an engraved roll of an embossing unit (ie on a not embossed ply with reference to examples of Figs. IA, 2A and 3, where the not embossed ply is marked by the reference number "2”) .
  • the present device can also be used as shown in Fig.8 if desired: the paper ply (2) subjected to glueing in the glueing station (C) is a ply that has been embossed.
  • the ply (2) carries a certain amount of paper powder due to its embossing but to a lesser extent than the quantity produced at the corresponding embossing station (G2) and by virtue of the fact that along the path between the station (G2) and the station (C) a part of the powder determined by embossing disperses.
  • the glue can be colored and can be applied on a paper ply (embossed or smooth, that is embossed or not embossed) forming glueing areas having a predetermined shape (corresponding to the shape of the reliefs or "stamps" F of the applicator rollers RA) and can be applied in a single step
  • the embossing step can be performed using an engraved roller (RI) provided with additional reliefs
  • the glueing of the paper ply (2) is executed when it is located and passes between a roller (RA) of the glueing station (C) and a driving smooth roller (60) that supports the ply (2) while the latter is being glued and that is physically separates from the rollers (RI, RE) of the embossing station (s).
  • the said driving roller (60) is away from the embossing station (s) (G) .
  • the said glueing or siziong units (4, 40) may apply glue of the same color on the ply (2) or glue of different colors, with the unit (4) applying glue of a color and with the unit (40) that applies glue of another color.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Paper (AREA)
  • Holo Graphy (AREA)
  • Catalysts (AREA)

Abstract

L’invention concerne un procédé de fabrication d’un papier en bobines constitué de plusieurs couches de papier superposées, le procédé comprenant une étape de gaufrage d’au moins une couche de papier (1) dans un poste de gaufrage correspondant (G) et d’accouplement de la couche par collage avec une autre couche de papier (2) avançant en direction dudit poste de gaufrage (G). Ladite autre couche de papier (2) est collée dans un poste de collage correspondant (C) en amont dudit poste de gaufrage (G) par rapport à la direction d’avancement de ladite autre couche de papier (2). La colle est appliquée à ladite autre couche de papier (2) lorsqu’elle est obtenue et qu’elle avance entre un rouleau (RA) du poste de collage (C) qui répartit la colle sur un côté de l’autre couche de papier (2) et un autre rouleau (60) qui guide et supporte l’autre couche de papier (2), ledit autre rouleau (60) étant écarté dudit poste de gaufrage (G).
PCT/IT2009/000310 2008-07-21 2009-07-16 Procédé et appareil de production de tissu gaufré Ceased WO2010010588A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI2008A000132A IT1391419B1 (it) 2008-07-21 2008-07-21 Metodo e dispositivo per la produzione di materiale nastriforme goffrato
ITFI2008A000132 2008-07-21

Publications (2)

Publication Number Publication Date
WO2010010588A2 true WO2010010588A2 (fr) 2010-01-28
WO2010010588A3 WO2010010588A3 (fr) 2010-03-18

Family

ID=40636128

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2009/000310 Ceased WO2010010588A2 (fr) 2008-07-21 2009-07-16 Procédé et appareil de production de tissu gaufré

Country Status (2)

Country Link
IT (1) IT1391419B1 (fr)
WO (1) WO2010010588A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105881981A (zh) * 2016-06-13 2016-08-24 陈志敏 一种独立分层数控自动压花装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3547723A (en) * 1967-04-19 1970-12-15 Kimberly Clark Co Method of making paper toweling material
US6129972A (en) * 1997-09-18 2000-10-10 The Procter & Gamble Company Embossed joined laminae having an essentially continuous network and juxtaposed embossments
DK1081284T3 (da) * 1999-08-31 2008-04-28 Georgia Pacific France Absorberende papirprodukt med mindst tre lag og fremgangsmåde ved fremstilling heraf
ITFI20030208A1 (it) * 2003-08-01 2005-02-02 Perini Fabio Spa Metodo e dispositivo per la produzione di un prodotto

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105881981A (zh) * 2016-06-13 2016-08-24 陈志敏 一种独立分层数控自动压花装置

Also Published As

Publication number Publication date
IT1391419B1 (it) 2011-12-23
ITFI20080132A1 (it) 2010-01-22
WO2010010588A3 (fr) 2010-03-18

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