EP0728067B1 - Rouleau de materiau allonge, son procede de production et moyens permettant de mettre ce dernier en ouvre - Google Patents

Rouleau de materiau allonge, son procede de production et moyens permettant de mettre ce dernier en ouvre Download PDF

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Publication number
EP0728067B1
EP0728067B1 EP95900970A EP95900970A EP0728067B1 EP 0728067 B1 EP0728067 B1 EP 0728067B1 EP 95900970 A EP95900970 A EP 95900970A EP 95900970 A EP95900970 A EP 95900970A EP 0728067 B1 EP0728067 B1 EP 0728067B1
Authority
EP
European Patent Office
Prior art keywords
roll
winding
turns
binder
shaft
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
EP95900970A
Other languages
German (de)
English (en)
Other versions
EP0728067A1 (fr
Inventor
Anders Andersson
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.)
Essity Hygiene and Health AB
Original Assignee
SCA Molnlycke AB
Molnlycke Vafveri AB
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 Molnlycke AB, Molnlycke Vafveri AB filed Critical SCA Molnlycke AB
Publication of EP0728067A1 publication Critical patent/EP0728067A1/fr
Application granted granted Critical
Publication of EP0728067B1 publication Critical patent/EP0728067B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • 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
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C11/00—Machinery for winding combined with other machinery
    • B31C11/02—Machinery for winding combined with other machinery for additionally shaping the articles
    • 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
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C11/00—Machinery for winding combined with other machinery
    • B31C11/04—Machinery for winding combined with other machinery for applying impregnating by coating-substances during the winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle

Definitions

  • the present invention relates to a roll of elongated material, especially soft paper which is used as toilet-rolls, kitchen rolls etc.
  • the invention also comprises also a method for the production of such rolls and a means for carrying out the method.
  • the roll according to the invention is of the type which does not have any separate sleeve-formed core around which it has been rolled. It has neither any round cross-section but is compressed to an oval or elliptical cross-sectional shape.
  • Compressed rolls having an oval or elliptical cross-sectional shape of for instance paper are earlier known. Examples of such are EP-A-392 581, DE-A-3 418 951 and GB-A-709 363.
  • the reason that the rolls according to these patents have an oval form is primarily that it shall be easier to pack the rolls so that in a packed state they require less space. In this manner both transport and storing of these are simpler.
  • the rolls are primarily toilet-rolls which are produced round and which, after the winding, have been compressed in some way. Sophisticated machines and means for the compressing of rolls are described for instance in the above mentioned DE-A-3 418 951.
  • toilet-rolls When for example toilet-rolls are to be used, they are usually put on a pin or a shaft in a holding fixture attached to a wall.
  • the rolls have therefore according to above known technique been provided with an inner core of rigid cardboard which has been flattened out in connection with the compression and which must be put back into a round shape when the roll is put on a shaft.
  • This snapping back is brought about by applying a pressure to the shorter sides so that the core will open up again. This is not an easy operation as such and the core must be of a certain kind. If it does not open, substantial difficulties will occur when putting the roll on a shaft.
  • Paper-rolls without any inner core of rigid cardboard are also known. See for instance SE-B-399 694.
  • the inner turns are stabilized by means of water possibly having an addition of a binder.
  • the innermost turns are, however, not completely glued to each other so that it is possible to roll off the material from the central hole, which is also the purpose with this form of rolls. These rolls are not flattened, but instead they maintain their round shape and the purpose with the stabilizing is that the central hole also shall be kept open and round.
  • a roll of an elongated material for example paper, especially paper and other nonwoven material has been created, which roll is wound on a core at the centre of the roll whereby the core is integrally formed with the rolled material thereon and consists of a number of turns thereof which are fixed in relation to each other, for example by gluing or the like, which roll is characterized in that the roll is in a compressed oval or elliptical form and that the core consists of at least five inner turns and is elastic in such a way that it can be opened from the compressed state by pressure against the shorter sides of the ellipse.
  • the elasticity in the core of the roll is achieved by fixation by means of a binder of the type polyvinylacetate, polyethylenvinylacetate, polyacrylate, latex, starch, modified starch, cellulose derivates, polyvinyl alcohol in water or other water-soluble binder.
  • the invention also relates to a process for the production of a roll, which method is characterized in that at least five of the first turns of the elongated material during conventional winding are sprayed or covered with a binder solution and that immediately after the completed winding and removal from the winding shaft, the roll is compressed to an elliptical or oval section form.
  • an auxiliary means with a smaller diameter than that of the winding shaft can first be introduced in the central hole of the roll after the removal of the winding shaft and be kept in the central hole during the first step of the compression and accordingly assist in forming this.
  • the invention also comprises a device for the production of a roll according to the above and it is characterized by a means for spraying or covering at least five of the first turns of the elongated material during winding thereof with a binder; means for removing the roll of elongated material from the winding shaft after finished winding; and means for compressing the roll into an elliptical or oval section form immediately after winding, said means for compressing comprising to converging synchronically driven conveyor bands at one end of the winding shaft, which conveyor bands have a distance from each other corresponding to the diameter of the roll closest to the end of the shaft and converge in a direction from the end.
  • FIGURE DESCRIPTION
  • the invention relates to a further development of winding of, for example, soft paper in conventional machines, such as a centrally-driven rolling machine or a carrier rolling machine. These machines are commonly known and are therefore not described further here. In these machines the rolls are rolled up on a rotating shaft from a larger feeding roll. The machine usually comprises more shafts which, in turn, roll up the paper strip. They therefore move stepwise to a correct position for winding, removal of the roll, etc.
  • the paper strip is cut by means of a knife and the new end of the strip is brought to roll around a new shaft by means of air nozzles or the centrifugal force and the feeding speed.
  • Fig. 1 shows schematically spraying of a binder on the first turns.
  • a paper strip 1 is wound up on a shaft 2 and the end of the paper 5 has only come half a turn on the shaft 2.
  • the addition of binder occurs through a spray nozzle 6.
  • the liquid which is preferably sprayed on these inner turns is primarily those latex-based or water-soluble binders which have been mentioned above and which can impart elasticity to the inner turns.
  • concentration of these agents should be a few percent and the amount of sprayed liquid in relation to the paper can be 1-80 ml/m 2 of the strip.
  • the number of turns which should be sprayed with this elastic agent is not critical, but should at least consist of five turns if the core shall be able to open up again after compression. A greater number of turns can also be covered or immersed as these inner turns are also usable, but too great a number is of course unnecessary.
  • Fig. 2 shows schematically a means for performance of the compression.
  • a finished paper-roll 1 is shown on a shaft 2.
  • the paper-roll 1 is moved in that state to the right in the figure in between two synchronized, driven conveyor bands 3 and 4 which converge with increasing distance from the winding shaft 2.
  • the paper roll 1 is pushed in between these bands 3 and 4, the roll 1 will be increasingly compressed and will finally obtain a shape in cross-section which is oval or elliptical.
  • Behind the bands 3 and 4 are rails which support the bands 3 and 4.
  • the removal means of the roll 1 from the shaft 2 can be conventional.
  • the bands 3 and 4 also assist in removing the shaft 2 as these bands are driven.
  • the compression of the roll can also occur by means of other devices, for instance by means of a pneumatic or hydraulic pressing plate which presses the roll against a stationary plate.
  • the liquid in the applied covering or impregnation of the first turns will, though the compression has been made immediately after the finished rolling, partly evaporate from the roll, partly move in into the dry turns of the roll without influencing the properties of the rolls as this amount of liquid is so small. This makes it possible that the roll after the compression can be cut and packed directly using conventional means.
  • a roll, for example a toilet-roll, which has been produced according to the present invention is flat in its appearance but can easily be pressed to a round form again, whereby the core reopens so that a pin or shaft can be inserted into the same.
  • the hole in the core will not usually be completely round but this has no importance since the opening will be so well shaped that a pin or shaft can be inserted into it.
  • the opening can also be preformed to a certain extent so that an auxiliary means can be introduced in the hole before the compression, which means is withdrawn before the compression has been completed and thus contributes to form the re-opened hole.
  • Fig. 3 shows an example of a compressed toilet-roll.
  • the roll 1 has been shown as one single continuous roll that is intended to be cut into smaller rolls after the compression.
  • the invention also includes rolls which have been made separately on the winding shaft 2 laying side by side.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Sanitary Thin Papers (AREA)

Claims (5)

  1. Rouleau de matériau allongé, par exemple du papier et en particulier du papier doux ou un autre matériau non tissé, qui est enroulé sur un support placé au centre du rouleau, dans lequel le support est formé d'un seul tenant avec le matériau enroulé sur lui et comprend un certain nombre de tours de ce matériau qui sont fixés les uns aux autres, par exemple par collage ou analogue, caractérisé en ce que le rouleau est comprimé sous une forme elliptique ou ovale et en ce que le support comprend au moins cinq tours intérieurs et est élastique de manière à pouvoir être ouvert depuis l'état comprimé, par une pression exercée sur les plus petits cotés de l'ellipse.
  2. Rouleau selon la revendication 1, caractérisé en ce que l'élasticité est obtenue par fixation au moyen d'eau, d'un liant du type poly(acétate de vinyle), poly(éthylène/acétate de vinyle) et polyacrylate, de latex, d'amidon, d'amidon modifié, de dérivés de la cellulose, de poly(alcool de vinyle) dans de l'eau ou d'un autre liant soluble dans l'eau.
  3. Procédé de production d'un rouleau selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce qu'un liant est projeté ou déposé sur au moins cinq des premiers tours du matériau allongé pendant un enroulement traditionnel et, immédiatement après la fin de l'enroulement et l'enlèvement de l'arbre d'enroulement, le rouleau est comprimé pour avoir une section de forme elliptique ou ovale.
  4. Procédé de production d'un rouleau selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce qu'un liant est projeté ou déposé sur au moins cinq des premiers tours du matériau allongé pendant un enroulement traditionnel et un moyen auxiliaire qui a un diamètre plus petit que celui de l'arbre d'enroulement est d'abord introduit dans le trou central du rouleau après enlèvement de l'arbre d'enroulement et reste dans le trou central pendant une première étape de compression en contribuant ainsi à donner au trou une section de forme ovale ou elliptique.
  5. Machine comprenant un arbre d'enroulement servant à la production d'un rouleau (1) selon l'une quelconque des revendications 1 à 4, caractérisée par un moyen servant à projeter ou déposer un liant sur au moins cinq des premiers tours du matériau allongé pendant l'enroulement de ce dernier, un moyen pour retirer le rouleau de matériau allongé de l'arbre d'enroulement une fois l'enroulement terminé, et un moyen pour comprimer le rouleau afin de lui donner une section de forme ovale ou elliptique immédiatement après l'enroulement, ledit moyen de compression comprenant deux bandes de convoyeur (3, 4), entraínées de manière synchrone et qui convergent, situées en une extrémité de l'arbre d'enroulement (2), lesdites bandes de convoyeur (3, 4) étant séparées l'une de l'autre par une distance qui correspond au diamètre du rouleau (1) à proximité de l'extrémité de l'arbre (2) et convergeant dans une direction qui s'éloigne de cette extrémité.
EP95900970A 1993-11-08 1994-11-04 Rouleau de materiau allonge, son procede de production et moyens permettant de mettre ce dernier en ouvre Expired - Lifetime EP0728067B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9303669 1993-11-08
SE9303669A SE505508C2 (sv) 1993-11-08 1993-11-08 Rulle av banformigt material, förfarande för framställning av en sådan samt anordning för utövande av förfarandet
PCT/SE1994/001041 WO1995013183A1 (fr) 1993-11-08 1994-11-04 Rouleau de materiau allonge, son procede de production et moyens permettant de mettre ce dernier en ×uvre

Publications (2)

Publication Number Publication Date
EP0728067A1 EP0728067A1 (fr) 1996-08-28
EP0728067B1 true EP0728067B1 (fr) 1998-10-21

Family

ID=20391667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95900970A Expired - Lifetime EP0728067B1 (fr) 1993-11-08 1994-11-04 Rouleau de materiau allonge, son procede de production et moyens permettant de mettre ce dernier en ouvre

Country Status (6)

Country Link
EP (1) EP0728067B1 (fr)
AU (1) AU1037595A (fr)
DE (1) DE69414126T2 (fr)
ES (1) ES2124991T3 (fr)
SE (1) SE505508C2 (fr)
WO (1) WO1995013183A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3221223B1 (fr) * 2014-11-17 2023-09-06 GPCP IP Holdings LLC Produits en rouleaux creux sans noyau comprimés reformables

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10213066B2 (en) 2016-04-01 2019-02-26 Essity Operations France Coreless roll of absorbent sheet and method for manufacturing the same
PL3436087T3 (pl) * 2016-04-01 2020-08-10 Essity Operations France Bezrdzeniowa rolka arkusza chłonnego i sposób jej wytwarzania
CN108357738B (zh) * 2017-04-06 2019-08-02 山鹰国际控股股份公司 一种多规格纸卷输送包装自动化生产线及方法
RU2751637C1 (ru) 2017-09-29 2021-07-15 Эссити Хайджин Энд Хелт Актиеболаг Безгильзовый рулон абсорбирующего листа и способ его изготовления
EP3688224B1 (fr) 2017-09-29 2022-06-15 Essity Hygiene and Health Aktiebolag Rouleau sans mandrin de feuille absorbante et son procédé de fabrication
WO2019064045A1 (fr) 2017-09-29 2019-04-04 Essity Hygiene And Health Aktiebolag Rouleau sans noyau de feuille absorbante et son procédé de fabrication
GB2586159B (en) * 2019-08-08 2023-11-01 Kimberly Clark Co Apparatus and methods for compressing stacks of articles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837138A (en) * 1973-02-23 1974-09-24 Johns Manville Method and apparatus for compressing material and enclosing the same in a plastic film
SE399694B (sv) * 1976-05-19 1978-02-27 Moelnlycke Ab Rulle av banformigt material
US4762061A (en) * 1984-03-30 1988-08-09 Kouzou Watanabe Method of producing compressed roll of paper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3221223B1 (fr) * 2014-11-17 2023-09-06 GPCP IP Holdings LLC Produits en rouleaux creux sans noyau comprimés reformables

Also Published As

Publication number Publication date
DE69414126D1 (de) 1998-11-26
ES2124991T3 (es) 1999-02-16
SE505508C2 (sv) 1997-09-08
EP0728067A1 (fr) 1996-08-28
SE9303669L (sv) 1995-05-09
AU1037595A (en) 1995-05-29
SE9303669D0 (sv) 1993-11-08
WO1995013183A1 (fr) 1995-05-18
DE69414126T2 (de) 1999-06-02

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