WO2001007245A1 - Method and apparatus for embossing paper webs - Google Patents

Method and apparatus for embossing paper webs Download PDF

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Publication number
WO2001007245A1
WO2001007245A1 PCT/EP2000/007066 EP0007066W WO0107245A1 WO 2001007245 A1 WO2001007245 A1 WO 2001007245A1 EP 0007066 W EP0007066 W EP 0007066W WO 0107245 A1 WO0107245 A1 WO 0107245A1
Authority
WO
WIPO (PCT)
Prior art keywords
embossing
roller
contrast
paper
unit
Prior art date
Application number
PCT/EP2000/007066
Other languages
English (en)
French (fr)
Inventor
Sauro Tronchetti
Original Assignee
Industrie Cartarie Tronchetti S.P.A
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11383429&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2001007245(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Industrie Cartarie Tronchetti S.P.A filed Critical Industrie Cartarie Tronchetti S.P.A
Priority to AT00958288T priority Critical patent/ATE294700T1/de
Priority to EP00958288A priority patent/EP1216144B1/de
Priority to DE60019942T priority patent/DE60019942T2/de
Priority to AU69860/00A priority patent/AU6986000A/en
Publication of WO2001007245A1 publication Critical patent/WO2001007245A1/en

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
    • B31F2201/0723—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
    • B31F2201/0741—Roller cooperating with a non-even counter roller
    • B31F2201/0743—Roller cooperating with a non-even counter roller having a matching profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0771—Other aspects of the embossing operations
    • B31F2201/0774—Multiple successive embossing operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0782—Layout of the complete embossing machine, of the embossing line

Definitions

  • the present invention relates to a method and an apparatus for embossing paper webs, particularly for forming products such as tissues, for example toilet tissue.
  • Paper embossing systems for example for producing composite two-ply rolls of kitchen paper, generally include a roll unwinding device which is suitable to feed two plies of paper to an embossing unit which can be provided with a system for pasting the two plies.
  • the embossing unit may include two embossing rollers, each provided with a plurality of protrusions which are arranged in parallel rows and each cooperating with a respective presser roller to emboss each sheet.
  • One of the two embossing rollers can be coated with paste so as to paste the two sheets.
  • the protrusions of the embossing rollers are formed by mechanical machining or by chemical processes for removing material, so that the sheets have a uniform stippling constituted by parallel rows of points directed inward, i.e., on the facing sides of the sheets.
  • a knurling unit which is suitable to knurl the roll in order to join the two plies.
  • the aim of the present invention is to provide a method and an apparatus which can overcome the drawbacks of the prior art.
  • Another object of the present invention is to provide a system which is capable of producing ornamental patterns or designs, with a second embossing, without altering the first foundation embossing.
  • Another object of the present invention is to provide a method which is capable of producing ornamental patterns or designs of varying complexity according to requirements and in a highly versatile way, i.e., so that it is possible to change the design rapidly and cheaply.
  • Another object of the present invention is to provide an embossing method which can produce even complex ornamental patterns on the finished product.
  • Another object of the present invention is to provide a method and an apparatus which provides more flexible management, in terms of production, than prior art systems for producing complex designs.
  • a method for embossing paper webs particularly for manufacturing products of the tissue type, such as toilet tissue, comprising a step of first embossing and characterized in that it comprises a second embossing, after the first one, which is deeper than the thickness of the sheets plus a certain value.
  • Figure 1 is a schematic side elevation view of an embossing apparatus of the point-to-point type
  • FIG. 2 is a schematic side elevation view of an embossing apparatus of the DERL or DESL type. Ways of carrying out the invention
  • a machine for performing so-called point-to- point embossing is shown; the machine is generally designated by the reference numeral 1 and includes a feeder (not shown) which is suitable to feed a first embossing unit 5 with two plies of paper 7 and 9.
  • the first embossing unit includes a first embossing roller 11, with a corresponding rubber roller 13, and a second embossing roller 15, with a corresponding rubber roller 17.
  • a pasting device 19 which is suitable to spread paste onto the roller 15 in order to paste the two plies 7 and 9 together.
  • the output of the first embossing unit is a web of embossed paper 21 which, according to the invention, is passed through a second embossing unit 10 which is constituted, in the illustrated example, by an embossing roller 31 which cooperates with a contrast roller 23.
  • the roller 31 is made of steel, is machined in relief and is suitable to work in contrast with the roller 23, which is made of rubber.
  • the contrast roller 23 also can be made of steel and be provided with recesses for receiving the points of the roller 31.
  • the recesses of the contrast roller are advantageously shallower than the height of the points of the roller 31.
  • the embossing roller 31 may have a jacket which is suitable to support a plate on which the design is formed by virtue of various methods which are known in the field.
  • the contrast roller is made of rubber.
  • the embossing performed by the second embossing unit is at least equal in depth to the thickness of the two sheets plus a certain value, which corresponds to the intended depth of the second ornamental pattern.
  • the value is equal to the depth of the penetration of the points of the embossing roller into the rubber roller.
  • the value of the depth of the second embossing could be approximately 1 mm, to which a processing margin must be added.
  • the second embossing unit may have a second embossing roller (not shown) which acts on the same contrast roller 23, alternatively to the roller 31. In this manner, by using alternatively one embossing roller or the other, each having a different design, it is possible to vary the embossed design in a few minutes simply by pressing one or the other of the rollers against the contrast roller 23.
  • the system according to the invention has some important advantages: it is in fact possible to change the design on the paper in a very short time.
  • embossing rollers in the second embossing unit allows to vary the ornamental pattern almost instantaneously, simply by actuating one roller instead of the other.
  • the web 21 is thus subjected to a second embossing which is superimposed on the first embossing performed by the first embossing unit.
  • Figure 2 illustrates an embossing machine, generally designated by the reference numeral 101, for performing embossing of the DERL/DESL type, which includes a feeder (not shown) which is suitable to feed a first embossing unit 105 with two plies of paper 107, 109.
  • the first embossing unit includes a first embossing roller 111, with the corresponding rubber roller 113, and a second embossing roller 115, with the corresponding rubber roller 117.
  • there is a pasting device 119 for pasting the two plies 7 and 9.
  • the machine according to the invention allows to produce complex designs and ornamental patterns. While the first embossing unit can provide a conventional geometric pattern, the second embossing unit can in fact be used to superimpose a particular design.
  • the invention achieves the intended aim and objects; it is in fact extremely simple to provide even complex ornamental patterns by superimposing two separate embossings without however altering the foundation embossing.
  • the machine according to the invention is extremely flexible; it is in fact possible to vary the design on the paper simply by replacing the second embossing roller.
  • the second embossing unit can be easily excluded if one wishes to emboss the paper in a conventional manner with a simple design due to production requirements.
  • the invention is particularly advantageous for products constituted by two or more plies.
  • the second embossing can also be utilized to mutually paste the plies, if paste has been spread onto one of the two plies in the first embossing step.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Paper (AREA)
  • Replacement Of Web Rolls (AREA)
  • Sanitary Thin Papers (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
PCT/EP2000/007066 1999-07-27 2000-07-24 Method and apparatus for embossing paper webs WO2001007245A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT00958288T ATE294700T1 (de) 1999-07-27 2000-07-24 Verfahren und vorrichtung zum prägen von papierbahnen
EP00958288A EP1216144B1 (de) 1999-07-27 2000-07-24 Verfahren und vorrichtung zum prägen von papierbahnen
DE60019942T DE60019942T2 (de) 1999-07-27 2000-07-24 Verfahren und vorrichtung zum prägen von papierbahnen
AU69860/00A AU6986000A (en) 1999-07-27 2000-07-24 Method and apparatus for embossing paper webs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI99A001668 1999-07-27
IT1999MI001668A IT1313577B1 (it) 1999-07-27 1999-07-27 Metodo ed apparecchiatura per goffrare fogli di carta in rotolo.

Publications (1)

Publication Number Publication Date
WO2001007245A1 true WO2001007245A1 (en) 2001-02-01

Family

ID=11383429

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/007066 WO2001007245A1 (en) 1999-07-27 2000-07-24 Method and apparatus for embossing paper webs

Country Status (7)

Country Link
EP (1) EP1216144B1 (de)
AT (1) ATE294700T1 (de)
AU (1) AU6986000A (de)
DE (1) DE60019942T2 (de)
ES (1) ES2238305T3 (de)
IT (1) IT1313577B1 (de)
WO (1) WO2001007245A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014077751A1 (en) * 2012-11-16 2014-05-22 Sca Hygiene Products Ab Method for embossing a multi-ply paper product and an embossed multi-ply paper product
IT202000013255A1 (it) * 2020-06-04 2021-12-04 Pack Service S R L Procedimento per la produzione di articoli in carta tissue

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102529179A (zh) * 2012-01-06 2012-07-04 金红叶纸业集团有限公司 生活用纸、造纸设备及制造方法
ES2578830B1 (es) * 2015-01-29 2017-08-10 L.C. Paper 1881, S. A. Procedimiento de obtención de papel gofrado de capa única y unidad de gofrado de una lámina de papel crepado de capa única

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1443629A (en) * 1974-12-18 1976-07-21 Scott Paper Co Absorbent fibrous sheet material and method and apparatus for making it
US4483728A (en) * 1980-07-14 1984-11-20 Kimberly-Clark Corporation Relieved patterned marrying roll
EP0816058A2 (de) * 1996-07-01 1998-01-07 INDUSTRIE CARTARIE TRONCHETTI SpA Prägevorrichtung im Besonderen für Papier in Rollenform
US5913765A (en) * 1995-03-02 1999-06-22 Kimberly-Clark Worldwide, Inc. System and method for embossing a pattern on a consumer paper product
EP0928682A1 (de) * 1998-01-12 1999-07-14 Fort James France Vorrichtung zum mechanischen Behandeln von Papier, wobei die Vorrichtung ein verbessertes Lager für eine Walze aufweist und Verfahren zum Austauschen der Walzen in dieser Vorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1443629A (en) * 1974-12-18 1976-07-21 Scott Paper Co Absorbent fibrous sheet material and method and apparatus for making it
US4483728A (en) * 1980-07-14 1984-11-20 Kimberly-Clark Corporation Relieved patterned marrying roll
US5913765A (en) * 1995-03-02 1999-06-22 Kimberly-Clark Worldwide, Inc. System and method for embossing a pattern on a consumer paper product
EP0816058A2 (de) * 1996-07-01 1998-01-07 INDUSTRIE CARTARIE TRONCHETTI SpA Prägevorrichtung im Besonderen für Papier in Rollenform
EP0928682A1 (de) * 1998-01-12 1999-07-14 Fort James France Vorrichtung zum mechanischen Behandeln von Papier, wobei die Vorrichtung ein verbessertes Lager für eine Walze aufweist und Verfahren zum Austauschen der Walzen in dieser Vorrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014077751A1 (en) * 2012-11-16 2014-05-22 Sca Hygiene Products Ab Method for embossing a multi-ply paper product and an embossed multi-ply paper product
CN104822520A (zh) * 2012-11-16 2015-08-05 Sca卫生用品公司 一种压花多层纸产品的方法及一种压花多层纸产品
AU2012394470B2 (en) * 2012-11-16 2016-05-12 Sca Hygiene Products Ab Method for embossing a multi-ply paper product and an embossed multi-ply paper product
EP2919981A4 (de) * 2012-11-16 2016-07-13 Sca Hygiene Prod Ab Verfahren zum prägen eines mehrlagigen papierprodukts und geprägtes mehrlagiges papierprodukt
RU2608296C2 (ru) * 2012-11-16 2017-01-17 Ска Хайджин Продактс Аб Способ тиснения многослойного продукта из бумаги тиссью и тисненый многослойный продукт из бумаги тиссью
IT202000013255A1 (it) * 2020-06-04 2021-12-04 Pack Service S R L Procedimento per la produzione di articoli in carta tissue

Also Published As

Publication number Publication date
ITMI991668A0 (it) 1999-07-27
ES2238305T3 (es) 2005-09-01
DE60019942D1 (de) 2005-06-09
ITMI991668A1 (it) 2001-01-27
AU6986000A (en) 2001-02-13
EP1216144A1 (de) 2002-06-26
EP1216144B1 (de) 2005-05-04
IT1313577B1 (it) 2002-09-09
ATE294700T1 (de) 2005-05-15
DE60019942T2 (de) 2006-05-04

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