EP0798106B1 - Verfahren zum Herstellen von Prägewalzen, im besonderen für Papierbahnen - Google Patents

Verfahren zum Herstellen von Prägewalzen, im besonderen für Papierbahnen Download PDF

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Publication number
EP0798106B1
EP0798106B1 EP97104122A EP97104122A EP0798106B1 EP 0798106 B1 EP0798106 B1 EP 0798106B1 EP 97104122 A EP97104122 A EP 97104122A EP 97104122 A EP97104122 A EP 97104122A EP 0798106 B1 EP0798106 B1 EP 0798106B1
Authority
EP
European Patent Office
Prior art keywords
protrusions
forming
embossing
rollers
paper webs
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.)
Expired - Lifetime
Application number
EP97104122A
Other languages
English (en)
French (fr)
Other versions
EP0798106A1 (de
Inventor
Sauro Tronchetti
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.)
Industrie Cartarie Tronchetti SpA
Original Assignee
Industrie Cartarie Tronchetti 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 Industrie Cartarie Tronchetti SpA filed Critical Industrie Cartarie Tronchetti SpA
Priority to SI9730066T priority Critical patent/SI0798106T1/xx
Publication of EP0798106A1 publication Critical patent/EP0798106A1/de
Application granted granted Critical
Publication of EP0798106B1 publication Critical patent/EP0798106B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B31F2201/0733—Pattern

Definitions

  • the present invention relates to a method for forming embossing rollers, particularly rollers for embossing paper webs for tissue products, such as for example kitchen paper, toilet paper, et cetera.
  • Paper embossing machines for example for producing composite two-ply kitchen paper rolls, include two embossing rollers: each roller has a series of protrusions arranged in parallel rows and cooperates with a respective presser roller to emboss each sheet.
  • the embossing rollers are placed close together, so as to join the two embossed sheets, preferably by making the points coincide.
  • One of the two embossing rollers is coated with glue to paste the two sheets together.
  • the protrusions of the embossing rollers are provided by machining, or by means of chemical etching, so that the sheets have a uniform stippling that is constituted by parallel rows of points directed inward, that is to say, on the mutually facing sides of the sheets.
  • An advantageous condition for making the two sheets remain stably associated, however, is to have the largest possible number of protrusions of one sheet match those of the other sheet, in order to ensure a wide pasting surface.
  • the protrusions of one sheet must coincide with the spaces between the protrusions of the other sheet.
  • GB-A-2166690 discloses an embossing process producing embossed paper sheets, such as towels, comprising embossments having a major and minor axis wherein the major axis of substantially all of the embossments is aligned in the cross machine direction.
  • WO-A-93/25383 discloses a modular pattern roll, for embossing paper, made by assembling separate components rather than being one piece and chemically etched. This construction has advantages but is however complex and expensive. The preamble of claim 8 is based on this prior art.
  • An aim of the present invention is to provide embossing rollers and a method for producing such rollers, particularly rollers for embossing paper webs, which are capable to form complex ornamental patterns on the finished product.
  • An object of the invention is to provide a method that is considerably cheaper, from the production point of view, than conventional systems.
  • a further object is to provide a method that is capable of producing ornamental patterns or designs with various degrees of complexity, according to the requirements, but always with extreme precision and reproducibility, even mirror-symmetrical reproducibility, on multiple rollers.
  • a method for producing embossing rollers comprising a first step of forming a series of protrusions and a second step of forming a pattern or design which includes the at least partial removal of a certain number of the protrusions.
  • the embossing roller according to the invention is suitable to be used in a substantially conventional machine for producing embossed paper, of the type that includes two embossing rollers mounted with parallel axes, so that the embossing surface of the two rollers is in contact at the points of the facing protrusions of each roller.
  • each embossing roller cooperates with a respective presser roller, made of rubber or other flexible material, to provide embossing on the respective paper web.
  • Two paper webs are in fact fed respectively in the first pair and in the second pair of embossing and presser rollers in order to be embossed. Once embossed, the two webs are joined at the line of contact between the two embossing rollers so as to obtain a two-ply paper web.
  • the embossing roller is produced with a first step of forming a uniform series of protrusions 3, for example by machining. It is possible to perform optional finishing operations, or one may move on directly to a second step of forming an ornamental pattern or design 5 that includes the at least partial removal of a certain number of protrusions.
  • the protrusions may be advantageously removed by means of a numeric-control machine, for example a milling machine. This allows to reproduce each ornamental pattern or design perfectly, and even in a symmetrical manner, on the second roller. It is in fact very important to match the highest possible number of facing points of the protrusions of the two rollers, in order to ensure good gluing of the two plies.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Sanitary Thin Papers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Claims (10)

  1. Verfahren zum Herstellen von Prägewalzen (1), im besonderen zum Prägen von Papierbahnen, dadurch gekennzeichnet, daß es einen ersten Schritt zum Formen einer Anzahl von Vorsprüngen (3) und einen zweiten Schritt zum Formen eines Musters oder Designs (5), der wenigstens einen Teilabtrag einer bestimmten Anzahl der Vorsprünge (3) umfaßt, aufweist.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der erste Schritt des Formens der Anzahl von Vorsprüngen eine spanende Formgebung umfaßt.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der erste Schritt des Formens der Anzahl von Vorsprüngen eine chemische Formgebung umfaßt.
  4. Vorrichtung nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß auf den ersten Schritt des Formens der Anzahl von Vorsprüngen eine Nachbehandlung folgt.
  5. Vorrichtung nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß der zweite Schritt zum Formen eines Musters oder Designs, der wenigstens einen Teilabtrag einer bestimmten Anzahl der Vorsprünge umfaßt, mittels einer numerisch gesteuerten Maschine vorgenommen wird.
  6. Vorrichtung nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß der zweite Schritt zum Formen eines Musters oder Designs, der wenigstens einen Teilabtrag einer bestimmten Anzahl der Vorsprünge umfaßt, mittels einer Rändelmaschine vorgenommen wird.
  7. Vorrichtung nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß die numerisch gesteuerte Maschine eine Fräsmaschine ist.
  8. Walze zum Prägen von Papierbahnen mit einer Anzahl von über die Zylinderoberfläche verteilten Vorsprüngen (3), dadurch gekennzeichnet, daß Muster durch zumindest teilweises Abnehmen einiger Vorsprünge ausgebildet worden sind.
  9. Vorrichtung zum Prägen von Papierbahnen mit Prägewalzen nach Anspruch 8.
  10. Vorrichtung nach Anspruch 9, mit zwei einander gegenüberliegenden Walzen, von denen die eine Walze Muster umfaßt, die symmetrieidentisch mit dem Muster der anderen Walze sind.
EP97104122A 1996-03-26 1997-03-12 Verfahren zum Herstellen von Prägewalzen, im besonderen für Papierbahnen Expired - Lifetime EP0798106B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9730066T SI0798106T1 (en) 1996-03-26 1997-03-12 Method for forming embossing rollers, particularly for paper webs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI960592 1996-03-26
IT96MI000592A IT1284433B1 (it) 1996-03-26 1996-03-26 Procedimento per formare cilindri,particolarmente per la goffratura di nastri di carta

Publications (2)

Publication Number Publication Date
EP0798106A1 EP0798106A1 (de) 1997-10-01
EP0798106B1 true EP0798106B1 (de) 2000-05-24

Family

ID=11373774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104122A Expired - Lifetime EP0798106B1 (de) 1996-03-26 1997-03-12 Verfahren zum Herstellen von Prägewalzen, im besonderen für Papierbahnen

Country Status (12)

Country Link
EP (1) EP0798106B1 (de)
JP (1) JPH1071526A (de)
CN (1) CN1089676C (de)
AT (1) ATE193243T1 (de)
CA (1) CA2201018A1 (de)
DE (1) DE69702088T2 (de)
DK (1) DK0798106T3 (de)
ES (1) ES2147955T3 (de)
GR (1) GR3034184T3 (de)
IT (1) IT1284433B1 (de)
PT (1) PT798106E (de)
SI (1) SI0798106T1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2773564B1 (fr) * 1998-01-13 2000-02-11 Fort James France Feuille de papier absorbant gaufre, son procede de fabrication et dispositif permettant de la fabriquer
EP1033240A1 (de) * 1999-03-01 2000-09-06 Industrie Cartarie Tronchetti S.p.A. Verfahren und Vorrichtung zum Prägen von Folienmaterial, wie Papierbahnen und Deckfolien für Windeln
DE19957058A1 (de) 1999-11-26 2001-05-31 Focke & Co Verfahren und Vorrichtung zum Herstellen von Kragen für Klappschachteln
EP1324877B1 (de) 2000-10-13 2006-06-21 Boegli-Gravures S.A. Vorrichtung zum prägen und satinieren von flachmaterial
DK1372946T3 (da) 2001-03-26 2009-01-05 Boegli Gravures Sa Indretning til behandling af fladt materiale
ITFI20060072A1 (it) * 2006-03-15 2007-09-16 Perini Fabio Spa Rullo goffratore e relativo procedimento per la sua produzione
CN102744917A (zh) * 2011-05-09 2012-10-24 金红叶纸业集团有限公司 用于纸制品的压花辊、具压花的卫生纸及多层卫生纸制品
CN102407614B (zh) * 2011-11-14 2013-09-18 佛山市南海区德昌誉机械制造有限公司 一种纸巾加工设备上用的压花装置及其压花生产工艺
CN105921431B (zh) 2016-05-04 2018-02-06 京东方科技集团股份有限公司 一种转印板清洗设备及其清洗方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1589595A (en) * 1923-11-03 1926-06-22 Cleveland Folding Mach Co Knurling
US2346231A (en) * 1942-12-28 1944-04-11 Joseph D Ramsey Method of engraving textile printing rolls
US2638050A (en) * 1952-05-28 1953-05-12 Multicolor Gravure Corp Method of making printing rolls
US4116594A (en) * 1975-12-12 1978-09-26 Magna-Graphics Corporation Embossing apparatus having magnetic roller and flexible embossing plates therefor
CA1243233A (en) * 1982-12-20 1988-10-18 Robert N. Bauernfeind Embossing process and product
JPH08985B2 (ja) * 1988-05-13 1996-01-10 日産自動車株式会社 金型の表面処理方法
US5158523A (en) * 1990-09-17 1992-10-27 James River Corporation Of Virginia Apparatus for enhanced emboss bonding of multi-ply tissue products
CA2137653C (en) * 1992-06-12 1998-07-14 Kevin Benson Mcneil Modular construction pattern rolls for use in paper converting and paper converted thereby

Also Published As

Publication number Publication date
ATE193243T1 (de) 2000-06-15
EP0798106A1 (de) 1997-10-01
PT798106E (pt) 2000-10-31
DK0798106T3 (da) 2000-09-04
ES2147955T3 (es) 2000-10-01
DE69702088T2 (de) 2000-11-09
JPH1071526A (ja) 1998-03-17
DE69702088D1 (de) 2000-06-29
CN1089676C (zh) 2002-08-28
CA2201018A1 (en) 1997-09-26
CN1164467A (zh) 1997-11-12
ITMI960592A1 (it) 1997-09-26
GR3034184T3 (en) 2000-11-30
ITMI960592A0 (de) 1996-03-26
IT1284433B1 (it) 1998-05-21
SI0798106T1 (en) 2000-10-31

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