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WO2003008183A1 - Dispositif permettant d'appliquer un gaufrage sur une bande de papier mousseline - Google Patents

Dispositif permettant d'appliquer un gaufrage sur une bande de papier mousseline Download PDF

Info

Publication number
WO2003008183A1
WO2003008183A1 PCT/EP2002/004460 EP0204460W WO03008183A1 WO 2003008183 A1 WO2003008183 A1 WO 2003008183A1 EP 0204460 W EP0204460 W EP 0204460W WO 03008183 A1 WO03008183 A1 WO 03008183A1
Authority
WO
WIPO (PCT)
Prior art keywords
embossing
roll
peripheral surface
steel
protrusions
Prior art date
Application number
PCT/EP2002/004460
Other languages
English (en)
Inventor
Bernd Lofink
Original Assignee
Sca Hygiene Products Gmbh
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 Sca Hygiene Products Gmbh filed Critical Sca Hygiene Products Gmbh
Priority to EP02787105A priority Critical patent/EP1406759A1/fr
Publication of WO2003008183A1 publication Critical patent/WO2003008183A1/fr

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
    • B31F2201/0717—Methods and means for forming the embossments
    • B31F2201/072—Laser engraving
    • 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
    • B31F2201/0725—Hardness
    • 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
    • B31F2201/0728—Material
    • 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
    • B31F2201/073—Rollers having a multilayered structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B31F2201/0733—Pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0758—Characteristics of the embossed product
    • 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

Definitions

  • the invention relates to an embossing device for embossing a single-ply or multi-ply web of tissue paper.
  • an embossing pattern on a web of tissue paper is applied using one or more steel rolls in combination with rubber rolls.
  • the rubber rolls have a yielding surface which is elastically pressed by a raised embossing pattern on the steel roll.
  • Tissue paper fed between the rubber roll and the steel roll is imparted with an embossing pattern into the sheet.
  • embossing patterns can be used.
  • An embossing pattern with a regular arrangement of small protuberances in the embossed tissue paper contributes to a voluminous and soft feeling of the embossed paper, whereas the addition of an embossed aesthetic pattern serves to improve the aesthetic appearance.
  • US 4,320,162 describes a method for fabricating a multiple fibrous sheet structure in which each web is embossed with a first pattern embossment and a second pattern embossment, having different heights.
  • the individual embossed webs are adhesively joined only in those portions of the embossments with greater height.
  • the provision of greater height to the graphic embossments imparts a better visibility against the background pattern of smaller embossments.
  • these so-called double-depth embossments are said to enhance the softness, the water retention and the bulk of a two-ply web.
  • EP 0 797 705 Bl describes an embossed paper sheet having first protuberances and second protuberances which are arranged according to a first and second pattern respectively.
  • the first pattern is a graphic pattern sparingly distributed on the surface of the embossed paper sheet
  • the second embossing pattern forms the background pattern distributed in a high concentration per surface area of the embossed paper sheet.
  • the graphic embossing pattern is formed by protuberances which have a summit surface of linear form. This choice of distribution and form of the protuberances of the graphic embossing pattern and background pattern serves to improve the aesthetic appearance of the embossed paper sheet.
  • the tissue paper plies are embossed in the nip between a metal edged roll and a rubber roll.
  • the projecting elements on the metal roll forming the graphic and background pattern respectively can differ in height.
  • the projecting elements forming the background pattern are lower than those projecting elements forming the graphic pattern.
  • US 5,269,983 relates to a rubber-to-steel mated embossing which uses a resilient roll in which recesses are formed. These laser cut recesses receive protrusions of a rigid male embossing roll when the rolls are placed in contact. Due to the indentations in the rubber roll, significantly less pressure is required between the rubber roll and the rigid roll for causing the rubber to press the web around the protrusions and against the land areas of the rigid roll. This reduces the wear of the rubber.
  • embossing namely a steel roll with embossing protuberances on its peripheral surface and a second roll with a yielding layer on its peripheral surface cooperably disposed with respect to the steel roll as to form an embossing nip therewith.
  • the steel roll and the second roll with the yielding layer run in synchronisation.
  • the embossing device is characterised in that the second roll has discrete zones on its peripheral surface with a different thickness of the yielding layer and/or different characteristics of the yielding layer compared to that of the remaining peripheral surface.
  • the yielding layer of the second roll can be, for example, thicker in those zones which in the embossing nip are opposing to the protuberances forming the graphic pattern. This improves the visibility of the graphic pattern and intensifies the graphic appearance even though the height of the protuberances of the graphic pattern and the background pattern are the same. Therefore, the production of the steel embossing roll with an edged metal surface remains relatively simple because the height of the protrusions on the peripheral surface of the metal embossing cylinder are identical to those protuberances forming the background pattern and to those forming the decor pattern.
  • the second possibility is to change the material characteristics of the yielding layer in the discrete zones which, in the embossing nip, are opposed to the embossing protuberances of the steel roll .
  • the material characteristics of the yielding layer are mainly responsible for the appearance of the embossing pattern so that the choice of different material characteristics of the yielding layer gives the possibility of influencing the deformation of the paper web in the embossing nip and the resulting aesthetic appearance.
  • the first mentioned possibility of providing the yielding layer with a greater thickness in the discrete zones influences the outer shape of the second embossing roll
  • the provision of different material characteristics does not change the outer shape of the second roll.
  • the provision of a bombage of the rolls which is used to compensate a certain sagging of the rolls, is not to be interpreted as discrete zones with a greater thickness because those zones are not specifically opposed to certain embossing protuberances of the steel counter-roll.
  • the individual zones can have exactly the same shape as the embossing protuberances of the steel roll. It is, however, also possible to follow only the general shape of the embossing protuberances or to place the zones roughly opposed to the embossing protuberances of the counter roll. For complex geometries of the protuberances, an approximately opposed position of the individual zones might be the only feasible way to achieve the desired results without incurring high costs for the manufacturing of the second roll.
  • the steel roll has first embossing protrusions forming a graphic pattern and second embossing protrusions forming a background pattern wherein the height of the first embossing protrusions and the height of the second embossing protrusions are identical.
  • first embossing protrusions forming a graphic pattern
  • second embossing protrusions forming a background pattern wherein the height of the first embossing protrusions and the height of the second embossing protrusions are identical.
  • the synchronisation of the steel roll and the second roll places the discrete zones of the rubber coated roll opposing to the first protuberances forming a graphic pattern.
  • a graphic pattern is produced which has a better visibility and visual appearance than the second background pattern.
  • the inventive device can also be used to accentuate the background pattern over the graphic pattern by it becoming less pronounced and less visible.
  • an improvement in the aesthetic appearance of the graphic pattern is desired.
  • the second roller has an additional yielding layer in the discrete zones of its peripheral surface.
  • a first yielding layer e.g. a rubber layer
  • a second yielding layer covering only the discrete zones .
  • the additional yielding layer has a different hardness compared to that of the yielding layer.
  • the provision of different material characteristics is not only possible in combination with a higher overall thickness of the second roll. It is also possible to produce a second roll which is covered by a yielding layer with discrete zones, the material characteristics of which are different. Alternatively, the second roll can be provided with a yielding layer of uniform thickness which undergoes a surface treatment which is either only applied to the discrete zones or applied to the remaining surface. Thus, the different material characteristics can either be generated by using a different material composition or by using a different surface treatment .
  • Fig. 1 shows first embodiment of the embossing device according to the invention.
  • Fig. 2 shows a sectional detail view of the surface layer of a rubber embossing roll.
  • Fig. 1 shows part of an embossing station comprising two cylindrical rolls, a steel embossing roll 12 and a rubber roll 14, both of which rotate around parallel rotational axes 16 and 18.
  • the steel embossing roll 12 and rubber roll 14 are arranged so that an embossing nip 20 is formed between the rolls.
  • Both rolls 12 and 14 are part of an embossing station, the periphery of which is not shown in Fig. 1.
  • both rolls are provided with a geared portion around their circumference which mesh with each other so that, within the negligible play of meshing gears, the rubber roll runs in synchronisation with a steel embossing roll.
  • first and second protrusions On the steel embossing roll, there are first and second protrusions which are only sketched on part of its peripheral surface.
  • the first protrusions 24 which form a graphic pattern to be embossed on a single-ply or multi-ply web of tissue paper running through the nip 20.
  • the first protrusions have the shape of feathers, however, any decor can be used given that the first protrusions are for aesthetic purposes only.
  • the first protrusions 24 cover a considerably larger surface area than the second protrusions 26 which serve to impart a background embossing to the tissue paper web to be embossed.
  • the second protrusions are of a much smaller surface area than the first protrusions and have a simple geometrical shape like truncated cones, truncated pyramids or similar shapes.
  • the first protrusions are evenly distributed over the whole peripheral surface of the steel embossing roll 12 and are only left out in those parts of the steel embossing roll where the first protrusions with the graphic decor are placed.
  • the rubber roll 14 is synchronised and in registration with the steel embossing roll 12 and has a flexible and yielding surface.
  • the rubber roll serves to squeeze the web running through the nip against the male protrusions of the steel embossing roll and accommodate the protrusions of the steel embossing roll by virtue of its resilience.
  • the yielding rubber layer on the rubber roll flows about the protrusions of the steel embossing roll as force is applied to bring the rolls together.
  • the rubber roll 14 has a core of any suitable material which is covered by a surface layer of rubber.
  • the rubber layer of the rubber roll has different Shore-A- values on its peripheral surface.
  • the individual zones 30 and the first protrusions 24 cooperate in the embossing nip.
  • the individual zones 30 have a rubber hardness of 55 Shore-A whereas the remaining surface area of the rubber roll has a yielding rubber coating with a hardness of 80 Shore-A.
  • the softer surface zones 30 cooperate with the first protrusions 24 such that a more pronounced and sharper graphic embossing can be obtained.
  • the height of the first protrusions 24 and the second protrusions 26 is identical.
  • individual zones in the rubber roller which have a higher degree of hardness are favoured with regard to the visibility of a graphic pattern.
  • tissue paper which is sensitive to mechanical load.
  • individual zones with a lower degree of rubber hardness be preferred in order to improve the visual appearance of a graphic pattern.
  • the rubber hardness of the surface layer of the rubber roll 14 can vary between 25 to 100 Shore-A. However, the preferred range is between 45 and 80 Shore-A.
  • the rubber roll 14 might be provided with elevated surface areas corresponding to the individual zones 30 shown in Fig. 1. These elevated surface areas have a similar effect to the provision of individual zones 30 in Fig. 1 with a higher degree of rubber hardness. In these elevated zones, there is a higher pressure between the steel embossing roll 12 and the rubber roll 14 so that the first protrusions are pressed into the tissue paper web resulting in a good visibility of the graphic pattern.
  • Fig. 2 discloses a sectional view of a part of the rubber roll 14 with a first rubber layer 32 and a second rubber layer 34 in the individual zones 30 which come into contact with the first protrusions on the synchronised steel embossing roll.
  • the second rubber layer 34 can have the same or a different rubber hardness depending on the specific requirements, the tissue material to be embossed and the shape and density of the protrusions.
  • the use of a different material in the individual zones 30 and, alternatively or in combination, the possible provision of elevated areas in these zones opens up the possibility of adjusting the optimum visibility of different embossing patterns having the same height on the corresponding steel embossing roll.

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

Abstract

La présente invention concerne un dispositif de gaufrage destiné au gaufrage d'une bande monocouche ou multicouche de mousseline. Ledit dispositif comprend un premier rouleau d'acier (12) présentant des parties saillantes de gaufrage (24, 26) sur sa surface périphérique et un second rouleau (14) présentant une couche plastique (32) sur sa surface périphérique. Le second rouleau coopère avec le second rouleau d'acier (12) de manière à former une ligne de contact de gaufrage (20) avec ce dernier. Le rouleau d'acier (12) et le second rouleau (14) fonctionnent de façon synchronisée. Le second rouleau (14) présente des zones individuelles (30) sur sa surface périphérique d'une épaisseur totale supérieure et/ou des caractéristiques différentes de la couche plastique (32, 32, 34) comparé à celles de la surface périphérique restante. Ces zones individuelles (30) sont opposées au niveau de la ligne de contact de gaufrage (20) aux parties saillantes de gaufrage du rouleau d'acier (12).
PCT/EP2002/004460 2001-07-16 2002-04-23 Dispositif permettant d'appliquer un gaufrage sur une bande de papier mousseline WO2003008183A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02787105A EP1406759A1 (fr) 2001-07-16 2002-04-23 Dispositif permettant d'appliquer un gaufrage sur une bande de papier mousseline

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0117289A GB2377674B (en) 2001-07-16 2001-07-16 Device for applying an embossing to a web of tissue paper
GB0117289.9 2001-07-16

Publications (1)

Publication Number Publication Date
WO2003008183A1 true WO2003008183A1 (fr) 2003-01-30

Family

ID=9918570

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/004460 WO2003008183A1 (fr) 2001-07-16 2002-04-23 Dispositif permettant d'appliquer un gaufrage sur une bande de papier mousseline

Country Status (4)

Country Link
EP (1) EP1406759A1 (fr)
GB (1) GB2377674B (fr)
TW (1) TW542787B (fr)
WO (1) WO2003008183A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8562329B2 (en) 2010-06-21 2013-10-22 Sca Hygiene Products Ab Embossing tool and embossed product
US9144664B2 (en) 2009-10-01 2015-09-29 Sarcos Lc Method and apparatus for manipulating movement of a micro-catheter
CN112566776A (zh) * 2018-06-26 2021-03-26 伯格利-格拉维瑞斯股份有限公司 用于压花凸纹结构的方法和装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE520826T1 (de) * 2003-03-07 2011-09-15 Georgia Pacific France Saugfähiges geprägtes papierprodukt
US7314663B2 (en) 2003-09-29 2008-01-01 The Procter + Gamble Company Embossed multi-ply fibrous structure product and process for making same
US7374638B2 (en) 2003-09-29 2008-05-20 The Procter & Gamble Company High bulk strong absorbent single-ply tissue-towel paper product
CA2700693A1 (fr) * 2004-02-17 2005-09-01 The Procter & Gamble Company Produits en papier a gaufrures nichees de maniere profonde
US7413629B2 (en) 2004-05-21 2008-08-19 The Procter & Gamble Company Process for producing deep-nested embossed paper products
US7435313B2 (en) 2004-05-21 2008-10-14 The Procter & Gamble Company Process for producing deep-nested embossed paper products
ITBO20040652A1 (it) * 2004-10-21 2005-01-21 Gd Spa Unita' per goffratura e metodo per la sua realizzazione
IT201800009090A1 (it) * 2018-10-02 2020-04-02 Perini Fabio Spa Organo di mollettatura, gruppo di mollettatura per unire veli di materiale cellulosico, e metodo

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Publication number Priority date Publication date Assignee Title
US4320162A (en) * 1980-05-15 1982-03-16 American Can Company Multi-ply fibrous sheet structure and its manufacture
US5269983A (en) * 1991-02-04 1993-12-14 James River Corporation Of Virginia Rubber-to-steel mated embossing
JPH06143466A (ja) * 1992-11-12 1994-05-24 Yuri Roll Kk エンボス加工装置
US5415918A (en) * 1993-12-22 1995-05-16 James River Corporation Of Virginia Functional emboss design for multi-ply napkins
US6106928A (en) * 1994-12-16 2000-08-22 Fort James France Embossed absorbent paper having combined patterns
EP1033240A1 (fr) * 1999-03-01 2000-09-06 Industrie Cartarie Tronchetti S.p.A. Procédé et dispositif pour l'emboutissage de materiaux en feuilles, telle que des bandes de papier et feuilles arrière pour des articles absorbants

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US4361085A (en) * 1981-06-11 1982-11-30 Crown Zellerbach Corporation Embossing apparatus
CA2060567C (fr) * 1991-02-04 1997-06-10 Galyn Arlyn Schulz Machine pour gaufrer une bande fibreuse

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4320162A (en) * 1980-05-15 1982-03-16 American Can Company Multi-ply fibrous sheet structure and its manufacture
US5269983A (en) * 1991-02-04 1993-12-14 James River Corporation Of Virginia Rubber-to-steel mated embossing
JPH06143466A (ja) * 1992-11-12 1994-05-24 Yuri Roll Kk エンボス加工装置
US5415918A (en) * 1993-12-22 1995-05-16 James River Corporation Of Virginia Functional emboss design for multi-ply napkins
US6106928A (en) * 1994-12-16 2000-08-22 Fort James France Embossed absorbent paper having combined patterns
EP1033240A1 (fr) * 1999-03-01 2000-09-06 Industrie Cartarie Tronchetti S.p.A. Procédé et dispositif pour l'emboutissage de materiaux en feuilles, telle que des bandes de papier et feuilles arrière pour des articles absorbants

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 452 (M - 1661) 23 August 1994 (1994-08-23) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9144664B2 (en) 2009-10-01 2015-09-29 Sarcos Lc Method and apparatus for manipulating movement of a micro-catheter
US8562329B2 (en) 2010-06-21 2013-10-22 Sca Hygiene Products Ab Embossing tool and embossed product
CN112566776A (zh) * 2018-06-26 2021-03-26 伯格利-格拉维瑞斯股份有限公司 用于压花凸纹结构的方法和装置
CN112566776B (zh) * 2018-06-26 2023-09-29 伯格利-格拉维瑞斯股份有限公司 用于压花凸纹结构的方法和装置

Also Published As

Publication number Publication date
TW542787B (en) 2003-07-21
EP1406759A1 (fr) 2004-04-14
GB2377674B (en) 2004-05-26
GB2377674A (en) 2003-01-22
GB0117289D0 (en) 2001-09-05

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