EP2653299A1 - Procédé de fabrication de cýur à pli unique, pli et cýur à pli unique - Google Patents

Procédé de fabrication de cýur à pli unique, pli et cýur à pli unique Download PDF

Info

Publication number
EP2653299A1
EP2653299A1 EP12002798.2A EP12002798A EP2653299A1 EP 2653299 A1 EP2653299 A1 EP 2653299A1 EP 12002798 A EP12002798 A EP 12002798A EP 2653299 A1 EP2653299 A1 EP 2653299A1
Authority
EP
European Patent Office
Prior art keywords
ply
central portion
sheet
longitudinal edge
single 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.)
Withdrawn
Application number
EP12002798.2A
Other languages
German (de)
English (en)
Inventor
René SIGWALT
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 Operations France SAS
Original Assignee
SCA Tissue France SAS
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 Tissue France SAS filed Critical SCA Tissue France SAS
Priority to EP12002798.2A priority Critical patent/EP2653299A1/fr
Publication of EP2653299A1 publication Critical patent/EP2653299A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C1/00—Making tubes or pipes by feeding at right angles to the winding mandrel centre line
    • 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
    • B31C3/00—Making tubes or pipes by feeding obliquely to the winding mandrel centre line
    • 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
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes
    • 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
    • B65H75/50—Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials

Definitions

  • An aspect of the invention relates to a core manufacturing method.
  • Another aspect of the invention relates to a core, namely a cylindrical tube for roll product.
  • a core finds a particular, though non exclusive, application in the tissue paper industry where a web of tissue paper is wound onto a core made of a cardboard cylindrical tube, for the purpose of, as an example, manufacturing paper towel or toilet tissue rolls.
  • the document US 5,573,638 describes a continuous paperboard sheet adapted to be slit longitudinally into a plurality of continuous paperboard plies, and to improved paperboard plies for forming single layer, paperboard tubes.
  • the paperboard sheet has a substantially constant width and includes a plurality of thick longitudinal sections and a plurality of thin longitudinal sections. The thick and thin sections are arranged in alternating relation across the width of the paperboard sheet. The sheet is slit longitudinally along the thin sections to provide a plurality of tube-forming paperboard plies.
  • the manufacturing process and the tube obtained are not satisfactory because, in practice, the edges of plies have been treated to decrease their thickness for the formation of cardboard tubes, by a grinding or compressing process.
  • the edges of the cardboard ply are ground with an abrasive wheel, or compressed between compressing rollers to decrease its thickness.
  • the intrinsic functional properties of the grounded edges of the cardboard ply are affected.
  • such a grinding or compressing process may not give satisfactorily result in term of decreasing the thickness when the tube is made of cardboard sheet.
  • the invention proposes to corrugate / emboss the thick central portion of the ply before winding said single ply of cardboard about a longitudinal axis in such a manner that a cylindrical body wall is formed having a single layer making up the radial thickness of the wall of the core.
  • a method of manufacturing a single ply core under the form of a cylindrical tube comprising the steps of:
  • the corrugation/embossing step may further include:
  • the single ply core manufacturing method may further comprises moistening said sheet before the corrugation/embossing step, and drying the ply after the corrugation/embossing step.
  • One side of the central portion may be flush with an external edge of the two flat longitudinal edge portions.
  • a longitudinal axis of each of the two flat longitudinal edge portions may be symmetrically positioned at half the thickness of said ply.
  • a longitudinal axis of each of the two flat longitudinal edge portions may be asymmetrically positioned, one external edges being flush with one side of the central portion, the other external edges being flush with the other side of the central portion.
  • the single ply core manufacturing method may further comprise spirally winding said single ply about a longitudinal axis in such a manner that a cylindrical body wall is formed having a single layer making up the radial thickness of the wall of the core.
  • Said single ply may be spirally wound about a longitudinal axis by being engaged by a winding belt cooperating with a mandrel, and advancing said single ply along the mandrel in a screw fashion.
  • the single ply core manufacturing method may further comprise longitudinally forming said single ply about a longitudinal axis in such a manner that a cylindrical body wall is formed having a single layer making up the radial thickness of the wall of the core.
  • Said single ply may be longitudinally formed about a longitudinal axis by being engaged and gradually oriented by a train of press rollers cooperating with a mandrel from a flat sheet to a tube conforming the shape of the mandrel.
  • the single ply core manufacturing method may further comprise applying glue on an external flat longitudinal edge portion of said ply as a full line or as a dotted line, and applying the external flat longitudinal edge portion so as to adhere onto the internal flat longitudinal edge portion of said ply.
  • a ply having two flat longitudinal edge portions relatively to a corrugated or embossed central portion arranged to be used for manufacturing a single ply core under the form of a cylindrical tube.
  • the corrugated central portion may have an undulation or wave-like profile.
  • the corrugated central portion may have an embossing pattern profile having a shape chosen among the group of embossments comprising pyramids or cones, truncated pyramids or truncated cones, half-spheres, or truncated half-spheres.
  • a single ply core formed from a single ply having two flat longitudinal edge portions relatively to a corrugated or embossed central portion.
  • the roll of sheet material may be a web of tissue paper roll.
  • the invention is advantageous for cardboard having an intrinsic stretch at break that is below 4%, more particularly below 3%, for example 2.5%.
  • the stretch at break is measured according to the French standard NF Q 03-004 ( « Essais des papiers et cartons - Méthode de détermination de la vehicle à la rupture par traction et de lalaut de rupture par traction » - Testing of paper and cardboard - Method of determination of tensile strength and stretch at break).
  • the invention further enables minimizing the cost of producing the core, e.g. by using less glue compared to core made of multiple plies glued together to form the thickness of the core wall.
  • FIG. 4 is a cross-section view of a ply 5 according to a first embodiment.
  • the ply 5 is adapted to form a single ply core tube.
  • a sheet forming one ply 5 comprising two flat longitudinal edge portions 6A/6B (i.e. external edge 6A and internal edge 6B at one end) and 7A/7B (i.e. external edge 7A and internal edge 7B at the other end) relatively to a corrugated or embossed central portion 9 is manufactured.
  • the central portion 9 of the ply 5 is corrugated or embossed such as to create a central portion thickness substantially equal or superior to the double thickness 2ep of the sheet (i.e. the thickness of the sheet is ep).
  • one side of the central portion 9 is flush with the external edges 6A, 7A of the two flat longitudinal edge portions.
  • FIG. 5 is a cross-section view of a ply according to a second embodiment.
  • the second embodiment only differs from the first embodiment in that the sheet is corrugated or embossed in such a way that the two flat longitudinal edge portions (more precisely the longitudinal axis LX of said edge portions) are symmetrically positioned at half the thickness of the resulting ply 5.
  • FIG. 6 is a cross-section view of a ply according to a third embodiment.
  • the third embodiment only differs from the first embodiment in that the sheet is corrugated or embossed in such a way that the two flat longitudinal edge portions (more precisely the longitudinal axis LX1/LX2 of said edge portions) are asymmetrically positioned, one external edges 6A/6B being flush with one side of the central portion 9, while the other external edges 7A/7B being flush with the other side of the central portion 9. This enables a natural overlapping of the adjacent edges during the winding process.
  • FIG. 8 illustrates a top or bottom view of a ply 5 according to the first, second or third embodiment adapted to form a single ply core tube.
  • the ply 5 comprises two flat longitudinal edge portions 6, 7 on each side of the corrugated or embossed central portion 9.
  • FIG. 7 is a cross-section view of the ply according to the first, second and third embodiment ( FIGS. 4 to 5 ) illustrating the overlapping joint area 8 of the single ply core tube.
  • the thickness is such that the overlapping of the two flat longitudinal edge portions results in an overall thickness substantially equal or superior to the double thickness 2ep of the sheet.
  • the ply is formed over a mandrel (i.e. a metallic cylinder) in such a manner that, in the overlapping joint area 8, the respective adjacent flat longitudinal edge portions 6B, 7A are deformed to be flush with the external sides of the central portion 9 whatever the embodiment.
  • a mandrel i.e. a metallic cylinder
  • the resulting stretch/deformation of the ply 5 at the overlapping joint zone 8 is either null or sufficiently low so that neither break, nor fragmentation, nor crumpled aspect of the ply is observed. Further, the whole process enables avoiding compressing or grinding the ply (in the Z direction), resulting in that the longitudinal edge portions stay untouched. Thus, this enables maintaining the intrinsic functional features of the longitudinal edge portions.
  • FIG. 9 schematically illustrates a first alternative method for manufacturing single ply core tubes from a cardboard sheet.
  • the cardboard sheet has a grammage (weight per unit area) of 80 to 1000 g/m 2 , more particularly 160 to 500 g/m 2 .
  • the cardboard sheet has an intrinsic stretch at break that is below 4%, more particularly below 3%, for example 2.5% (measured according to the French standard NF Q 03-004 hereinbefore cited).
  • a first step S1 the flat sheet forming the ply 5 of cardboard may be passed through a moistening unit 11.
  • the ply 5 is moistened in a moistening bath 12.
  • a moistened ply is obtained. This enables loosing the fiber bonds forming the ply 5 of cardboard. Moistening the ply is an optional step that eases the subsequent corrugating/embossing process.
  • a corrugating/embossing unit 13 comprises a pair of opposed cylinders 14, 15 (steel/steel or steel/rubber cylinders) comprising mating/combined protuberances that deform the ply 5.
  • the ply 5 is corrugated/embossed on the overall surface.
  • the longitudinal edge portions 6, 7 are flattened by the respective press 17, 18 of the compressing unit 16. During this flattening step, the thickness which was 2ep as a result of the corrugation/embossing step is returned to the original thickness ep.
  • the compression only affects the shape (from the corrugated/embossed shape to a flat shape) and not the structure/properties of the edge portions.
  • the sheet is centered relatively to the respective press 17, 18 before being flattened.
  • the vertical positions of the respective press 17, 18 determine the vertical positions of the flat longitudinal edge portions relatively to the central portion to be obtained so as to define the ply according to the first, second or third embodiment ( FIGS. 4 to 6 ).
  • a third step S3 the ply 5 comprising the corrugated/embossed central portion 9 and flat longitudinal edge portions 6, 7 is dried in a drying unit 19.
  • This step is performed when a moistened ply is involved in the process, e.g. because of the optional first moistening step S1.
  • the drying step is performed until an acceptable moisture content is reached (e.g. around 10% percent by weight).
  • the sheet forming one ply 5 comprising two flat longitudinal edge portions relatively to a corrugated or embossed central portion is manufactured.
  • a fourth step S4 the tube core 3 is spirally wound in a mandrel winding unit 20 and then cut to the desired length in a cutting unit 30.
  • This step will be explained in details in relation with FIGS. 11 and 13 .
  • the overall process may not be continuous as depicted in FIGS. 9 and 10 , meaning that the sheet forming one ply 5 may be manufactured and then temporarily stored as roll (this is not shown) before being wound as tube cores in the mandrel winding unit.
  • FIG. 10 schematically illustrates a second alternative method for manufacturing single ply core tubes from a cardboard sheet.
  • the second alternative method differs from the first alternative method only with respect to the second step S2.
  • the first moistening step S1, third drying step S3, and fourth winding/cutting step S4 are identical to the one of the first embodiment and therefore will not be further described.
  • the ply 5 is passed through a corrugating/embossing unit 13.
  • the corrugating/embossing unit 13 comprises a pair of opposed cylinders 14, 15 (steel/steel or steel/rubber cylinders) comprising mating/combined protuberances that deform the ply 5.
  • the sheet is centered relatively to the cylinders before being corrugated or embossed.
  • the ply 5 is corrugated/embossed only in the central portion 9.
  • the longitudinal edge portions 6, 7 are unaffected by the corrugating or embossing process and are, therefore, flat. As a result, the sheet forming one ply 5 comprising two flat longitudinal edge portions relatively to a corrugated or embossed central portion is manufactured.
  • FIG. 11 schematically illustrates a first machine for winding and cutting single ply core tube.
  • the tube core 3 is spirally wound in the winding unit 20 and then cut to the desired length in the cutting unit 30.
  • the winding unit 20 comprises a gluing depositing nozzle 21, a mandrel 22 and a winding belt 23.
  • the gluing depositing nozzle 21 is positioned upstream the mandrel 22 and the winding belt 23.
  • the gluing depositing nozzle 21 is applying glue 10 on the external flat longitudinal edge portion 7A of the single ply 5 as a full line (as shown) or as a dotted line (not shown).
  • the single ply core tube is formed by spirally winding the single ply 5 onto the mandrel 22.
  • the mandrel 22 may be an elongate metallic cylinder.
  • the winding angle may be 45°, but any other angle may be acceptable.
  • the winding belt 23 engages the single ply 5 and forms a single ply core tube 3.
  • the single ply core tube advances along the mandrel in a screw fashion.
  • the external flat longitudinal edge portion 7A is applied so as to adhere onto the internal flat longitudinal edge portion 6B of the single ply 5 (see FIG. 7 for details). This results in forming a well defined single ply core tube 3 downstream the winding belt 23.
  • the cutting unit 30 is positioned downstream the winding unit 20.
  • the cutting unit 30 cuts single ply core tube 3 of the desired length L.
  • the cutting unit 30 may comprise a circular saw, a blade, a crushing device, etc...
  • FIG. 12 schematically illustrates the single ply core tube 3 that is obtained with the machine depicted in FIG. 11 .
  • FIG. 13 schematically illustrates a second machine for forming and cutting single ply core tube.
  • the tube core 3 is longitudinally formed in the formation unit 20A and then cut to the desired length in the cutting unit 30.
  • the formation unit 20A of the second machine comprises a gluing depositing nozzle 21, a mandrel 22 and a train of press rollers 24, 25.
  • the gluing depositing nozzle 21 may be positioned upstream the mandrel 22 and the train of press rollers 24.
  • the gluing depositing nozzle 21 is applying glue 10 on the external flat longitudinal edge portion 7A of the single ply 5 as a full line (as shown) or as a dotted line (not shown).
  • the single ply core tube is formed by longitudinally wrapping the single ply 5 onto the mandrel 22 by means of the train of press rollers 24.
  • the mandrel 22 may be an elongate metallic cylinder.
  • the train of press rollers 24, 25 comprises a plurality of press rollers pairs (on each side of the ply, only one side press rollers being depicted in FIG. 13 for a mere clarity reason) having different orientations. For example, six to eight pairs of motorized press roller may be necessary.
  • the pairs of press rollers engage the single ply 5 and gradually orient the ply from a flat sheet to a tube conforming the shape of the mandrel 22.
  • the plurality of press rollers pairs enables forming a single ply core tube 3. As a result of this engagement, the single ply core tube advances longitudinally along the mandrel.
  • the external flat longitudinal edge portion 7A is applied by means of a terminal press roller 25 so as to adhere onto the internal flat longitudinal edge portion 6B of the single ply 5 (see FIG. 7 for details). This results in forming a well defined single ply core tube 3 downstream the train of press rollers 24, 25.
  • the cutting unit 30 is positioned downstream the formation unit 20A.
  • the cutting unit 30 cuts single ply core tube 3 of the desired length L.
  • the cutting unit 30 may comprise a circular saw, a blade, a crushing device, etc...
  • FIG. 14 schematically illustrates the single ply core tube 3 that is obtained with the machine depicted in FIG. 13 .
  • the central portion 9 can be corrugated or embossed longitudinally, transversally or even according to another direction provided that the central portion thickness is substantially equal or superior to the double thickness 2ep of the sheet.
  • the corrugation creates an undulation or wave-like profile on the sheet.
  • embossing namely creating an embossing pattern profile on the sheet.
  • the embossing pattern profile may have the shape of pyramids or cones 9A, truncated pyramids or truncated cones 9B, half-spheres 9C, truncated half-spheres 9D, etc... some examples being schematically illustrated in FIG. 15 .
  • This embossing pattern may be advantageous in order to limit the radial compression effect when the single ply is wound onto the mandrel by the winding belt or wrapped by the train of press rollers.
  • the above mentioned embossing pattern profiles create walls within the thickness of the cardboard that have a better resistance to said radially inward oriented compression than the undulation/corrugation. This result in the ply not being flattened or at least only in a limited fashion during the winding process (through the action of the winding belt or the train of press rollers).
  • the numbers, densities, angles and positions of the undulation/corrugation/embossments in the depicted embodiments are non limitative examples. The skilled person will readily recognize that these numbers, densities, angles and positions may be changed if desired or deemed necessary with respect to the required radial compression resistance, the cardboard ply intrinsic elasticity, or to adjust the width of the ply, etc....
  • the core of the invention may be used in winding sheet material as "rolls of sheet material".
  • Rolls of sheet material This has a large meaning encompassing, as examples, the rolls of paper towels, toilet tissues, plastic sheets or the like, metal sheets (e.g. aluminum) sheets or the like, food preservation bags, wraps, etc...
  • the sheet material may be rolled as a continuous non-perforated sheet or pre-perforated sheets.
  • the "roll of sheet material” may be used for residential or commercial applications.
  • a dispenser assembly may dispense the sheets of material from the roll of sheet material either manually (a user may pull the sheet of material with a hand) or motor assisted (a motor may assist in automatically dispensing the sheet of material on wish). Such dispenser assembly and mechanisms are not germane to the present invention and will not be further described in details.

Landscapes

  • Making Paper Articles (AREA)
EP12002798.2A 2012-04-20 2012-04-20 Procédé de fabrication de cýur à pli unique, pli et cýur à pli unique Withdrawn EP2653299A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12002798.2A EP2653299A1 (fr) 2012-04-20 2012-04-20 Procédé de fabrication de cýur à pli unique, pli et cýur à pli unique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12002798.2A EP2653299A1 (fr) 2012-04-20 2012-04-20 Procédé de fabrication de cýur à pli unique, pli et cýur à pli unique

Publications (1)

Publication Number Publication Date
EP2653299A1 true EP2653299A1 (fr) 2013-10-23

Family

ID=46049154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12002798.2A Withdrawn EP2653299A1 (fr) 2012-04-20 2012-04-20 Procédé de fabrication de cýur à pli unique, pli et cýur à pli unique

Country Status (1)

Country Link
EP (1) EP2653299A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2913183A1 (fr) * 2014-02-28 2015-09-02 Gambini International S.A. Machine et procédé de fabrication d'un élément tubulaire par enroulement d'une bande de carton dans un motif de bobine sans utilisation de colle à chaud à prise rapide
RU2791035C2 (ru) * 2021-08-02 2023-03-01 ООО "Летс Трейд" Способ гофрирования бумажной трубочки для питья

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE875914C (de) * 1944-07-24 1953-05-07 Ernest Bradbury Robinson Verfahren und Vorrichtung zum Herstellen von bemusterten Rohrstuecken
US5573638A (en) 1994-06-27 1996-11-12 Sonoco Products Company Paperboard for manufacturing single-layer paperboard tube-forming plies
EP1419985A2 (fr) * 2002-11-18 2004-05-19 Sonoco Development, Inc. Tube multi-couche formé par enroulement comprenant au moins un pli gaufré

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE875914C (de) * 1944-07-24 1953-05-07 Ernest Bradbury Robinson Verfahren und Vorrichtung zum Herstellen von bemusterten Rohrstuecken
US5573638A (en) 1994-06-27 1996-11-12 Sonoco Products Company Paperboard for manufacturing single-layer paperboard tube-forming plies
EP1419985A2 (fr) * 2002-11-18 2004-05-19 Sonoco Development, Inc. Tube multi-couche formé par enroulement comprenant au moins un pli gaufré

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2913183A1 (fr) * 2014-02-28 2015-09-02 Gambini International S.A. Machine et procédé de fabrication d'un élément tubulaire par enroulement d'une bande de carton dans un motif de bobine sans utilisation de colle à chaud à prise rapide
RU2791035C2 (ru) * 2021-08-02 2023-03-01 ООО "Летс Трейд" Способ гофрирования бумажной трубочки для питья

Similar Documents

Publication Publication Date Title
EP1419985A2 (fr) Tube multi-couche formé par enroulement comprenant au moins un pli gaufré
EP3259218B1 (fr) Rouleau sans mandrin et son procédé de fabrication
JP2002539991A (ja) 段ボールからなる折りたたみハニカム構造並びにその製造方法及び設備
US8672257B2 (en) Centrally-holed paper roll with reinforcing element and method of manufacturing said roll
CN109414896B (zh) 用于制造衬垫产品的方法和设备以及衬垫产品
CN1636831A (zh) 多层线性拉制支柱
EP2000428A2 (fr) Procédé et appareil pour onduler et enrouler des rouleaux de film plastique
US5772569A (en) Method and apparatus for the continuous production of package blanks
JP2012040775A (ja) ロール状衛生用紙の製造方法
EP2653299A1 (fr) Procédé de fabrication de cýur à pli unique, pli et cýur à pli unique
CA2565107C (fr) Procede de fabrication d'un rouleau a devidage central et rouleau obtenu
EP3233688B1 (fr) Partie centrale pouvant être déchirée, rouleau comprenant une telle partie centrale, et procédé de fabrication de partie centrale pouvant être déchirée
JP2006528921A (ja) 機械的抵抗を改善した螺旋状に巻回した紙製管を形成する機械および方法
US5766736A (en) Stock material for feeding machines for making dunnage products
JP2010220799A (ja) マルチプライ衛生用紙の製造方法
JP2020519243A (ja) エアロゾル発生物品用のロッドを材料シートから形成するための方法および装置
EP3894630B1 (fr) Produit textile et procédé et appareil permettant de produire un produit textile
CA1281572C (fr) Methode de fabrication d'un contenant en bois
US3477658A (en) Papermaking method and apparatus
WO2022034416A1 (fr) Paille alimentaire et son procédé de fabrication
US20180099320A1 (en) Rectangilar-Ribbed Profile Tubular Core and Method
WO2022003524A1 (fr) Procédé de fabrication dans une production en continu de bandes fibreuses qui sont ondulées le long du sens machine
KR100208509B1 (ko) 다층나선관의 성형방법 및 그 장치
WO2023031864A1 (fr) Procédé et appareil de fabrication d'âmes tubulaires pour produits laminés
RU96114241A (ru) Способ изготовления плоских и пространственных сотовых структур и конструкций на их основе

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20140423

RAX Requested extension states of the european patent have changed

Extension state: ME

Payment date: 20140423

Extension state: BA

Payment date: 20140423

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SCA TISSUE FRANCE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20151103