EP3888900A1 - Fabrication d'une bande d'emballage souple avec des ouvertures d'accès préparées par des étiquettes adhésives refermables - Google Patents

Fabrication d'une bande d'emballage souple avec des ouvertures d'accès préparées par des étiquettes adhésives refermables Download PDF

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Publication number
EP3888900A1
EP3888900A1 EP20168042.8A EP20168042A EP3888900A1 EP 3888900 A1 EP3888900 A1 EP 3888900A1 EP 20168042 A EP20168042 A EP 20168042A EP 3888900 A1 EP3888900 A1 EP 3888900A1
Authority
EP
European Patent Office
Prior art keywords
web
flexible packaging
packaging web
station
die
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.)
Pending
Application number
EP20168042.8A
Other languages
German (de)
English (en)
Inventor
Reto KLAUSER
Elke Rutzinger
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.)
CCL Label AG
Original Assignee
CCL Label AG
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 CCL Label AG filed Critical CCL Label AG
Priority to EP20168042.8A priority Critical patent/EP3888900A1/fr
Publication of EP3888900A1 publication Critical patent/EP3888900A1/fr
Pending 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/812—Applying patches, strips or strings on sheets or webs
    • B31B70/8122—Applying patches
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/813—Applying closures
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
    • B31B70/85—Applying patches or flexible valve inserts, e.g. applying film-like valves
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/94—Delivering singly or in succession
    • B31B70/942—Delivering singly or in succession by winding up
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/0043—Multiple-step processes for making flat articles ; Making flat articles the articles being box parts not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • B65D75/5838—Tear-lines provided in a wall portion for tearing out a portion of the wall combined with separate fixed tearing means, e.g. tabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5894—Preformed openings provided in a wall portion and covered by a separate removable flexible element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
    • B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
    • B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
    • B65D85/1036—Containers formed by erecting a rigid or semi-rigid blank
    • B65D85/1045—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge
    • B65D85/1056—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge characterized by the lid
    • B65D85/10568—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge characterized by the lid opening of the lid opens simultaneously an inner package within the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/28—Wound package of webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • B65H23/1955—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations and controlling web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/33—Modifying, selecting, changing orientation
    • B65H2301/331—Skewing, correcting skew, i.e. changing slightly orientation of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4432—Moving, forwarding, guiding material by acting on surface of handled material by means having an operating surface contacting only one face of the material, e.g. roller
    • B65H2301/44324—Rollers
    • B65H2301/443243—Rollers pivoting around an axis perpendicular to the plane of the material (especially when web is running in a U-loop)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/15—Roller assembly, particular roller arrangement
    • B65H2404/152—Arrangement of roller on a movable frame
    • B65H2404/1521—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
    • B65H2404/15212—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis rotating, pivoting or oscillating around an axis perpendicular to the roller axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/194—Web supporting regularly spaced adhesive articles, e.g. labels, rubber articles, labels or stamps

Definitions

  • the present invention relates to a method for manufacturing a flexible packaging web having areas with prepared access openings or areas intended for the provision of prepared access openings.
  • the present invention also relates to an apparatus for manufacturing such a flexible packaging as well as to an oscillating device used.
  • consumer goods are distributed to customers in prefabricated containers or packages.
  • the consumer goods are wrapped into a packaging casing made of relatively flexible film web material and are accommodated within this packaging casing inside the container which is made of relatively rigid material compared with the material of the packaging casing.
  • the packaging casing itself forms an outer package or outer housing for the consumer goods.
  • the packaging casing is provided with an access opening which may be covered by a resealable adhesive label in order to preserve the quality of the consumer goods after the first opening of the container or the packaging casing.
  • a container comprising a flexible inner packaging casing which encloses the consumer goods and is known from EP patent application 3 299 314 .
  • the container therein comprises an outer housing, wherein the outer housing comprises a relatively rigid box and a lid hinged to the box.
  • the inner packaging casing has an access opening through which consumer goods can be removed when the lid has been opened.
  • An adhesive label made of flexible film web material is provided to cover the access opening. For this purpose, the adhesive label extends beyond the periphery of the access opening of the inner packaging casing.
  • the adhesive label is at least partially releasably affixed to the inner packaging casing by a resealable adhesive provided on a first area of the inner surface of the adhesive label facing to the access opening of the inner packaging casing and extending about at least the periphery of the access opening of the inner packaging casing.
  • a second area of the inner surface of the adhesive label is permanently affixed to the inner surface of the front wall of the lid of the outer housing facing to the packaging casing.
  • a further, third area of the inner surface of the adhesive label, located between the first and second area, is substantially free of adhesive.
  • a flexible film web material is provided with equidistantly spaced access openings wherein the access openings are die-cut into the film web material.
  • the generated access openings within the film web material are each covered by a resealable adhesive label.
  • the inner packaging casing for one container is formed from a section of the film web material having a label-covered access opening.
  • a resealable flexible sealing label may be disposed over and extend beyond the opening panel over a portion of one or both of the front panel and back panel in an overlapping area. It is also possible that a transverse peelable seam may extend from and may be positioned along an edge of the gusseted top wall and one of the front or back panel, the transverse peelable seam being formed from a peelable and resealable adhesive.
  • a method for manufacturing a flexible packaging web having areas with prepared access openings or areas intended for the provision of prepared access openings comprising the steps of:
  • prepared access opening means that in the flexible packaging web along the outer contour of the access opening, or at least a section of the outer contour of this opening, the packaging web is weakened to such an extent that when a package is first opened for which a section of the flexible packaging web has been used as packaging, the access opening is released such that the wall section of the packaging web corresponding to the access opening is detached from the packaging formed by the packaging web and adheres to the resealable adhesive label. This creates or releases access to the inside of the packaging which can be reclosed by the resealable adhesive label.
  • the resealable adhesive label covering the prepared access opening before the manufacturing step for creating the prepared access opening or afterwards in or on the packaging web.
  • the prepared access opening is introduced into the flexible packaging web by a die-cutting process, a punching process or a perforation process along the outer contour of the access opening to such an extent that while a connection to the rest of the flexible packaging web remains, an access opening can be released in the manner described above.
  • the resealable adhesive label is applied to the section of the packaging web in or on which the access opening is to be inserted in a further manufacturing step in the manner as described above.
  • a circumferential thickening is normally formed at the position of the layered, resealable adhesive labels.
  • This circumferential thickening can cause undesired, irreversible deformations inside the wound up flexible packaging web. The deformations may be visible.
  • a supply roll wound up this way may have substantially even sides, since on each side of the supply roll the edges of the flexible packaging web may approximately be located in the same plane, wherein theses planes are orientated substantially perpendicular to the longitudinal axis of the supply roll and are approximately parallel to each other. Nevertheless, a supply roll having label-induced deformations may tend to pulsate undesirably during unwinding which may affect the following process step.
  • the oscillating guiding device may be located just before the supply roll on which the finished flexible packaging web is wound up, but other positions in the manufacturing process line can also be possible.
  • either resealable adhesive labels are first applied in predefined and preferably equidistantly spaced areas onto the flexible packaging web and then the access openings are prepared in each predefined area from the opposite side of the flexible packaging web or the access openings are prepared in the predefined areas first and then covered each by a resealable adhesive labels.
  • the areas with prepared access openings or the areas intended for the provision of prepared access openings of the flexible packaging web are preferably equidistantly spaced in feeding direction and are preferably of the same shape, wherein the shape can be rectangular, oval, round or any other possible shape suitable for unobstructedly removing consumer goods through the respective access opening.
  • the feeding direction may be the direction in which the manufacturing line convey the flexible packaging web.
  • the flexible packaging web can be a single layer web.
  • the flexible packaging web is a laminate of at least two material layers.
  • the at least two material layers forming the laminate may be of the same or different materials.
  • the material layers may be made of propylene (PP), polyethylene (PE), a polyester such as polyethylene terephthalate (PET), metallised papers, metallised films, metallised and/or printed PP films, or metallised and/or printed PET films.
  • the laminate for the flexible packaging web may also be a laminate of a film and paper, like a metallised and/or printed PP film, or a metallised and/or printed PET film in combination with a super-calendered paper.
  • the laminate comprises a first and a second material layer of the group as listed above and a third material layer of a thin aluminium film arranged between the first and the second material layer.
  • the flexible packaging web When guided over the oscillating guiding device in feeding direction, the flexible packaging web is oscillated preferably transverse to the feeding direction so that each resealable adhesive label is at least slightly displaced transverse to the feeding direction with reference to its following resealable adhesive label.
  • the local cumulated increase of thickness of the flexible packaging web caused by the resealable adhesive labels is spread over a larger area, wherein the oscillating of the flexible packaging web generates a decreasing gradient of thickness in direction of the edges of the flexible packaging web dependent on the degree of overlapping of the layered resealable adhesive labels.
  • the resealable adhesive labels may preferably be applied to the flexible packaging web by a linear labeller or a rotary/carousel-type labeller.
  • the oscillating or oscillating movement is carried out in the plane of the flexible packaging web.
  • the flexible packaging web is guided over the oscillating guiding device in a plane which is at least substantially parallel to a horizontal plane.
  • the method according to the present invention further comprises the steps of:
  • the supply of a feedstock web and a support liner may each be provided by a supply roller onto which they are wound up.
  • the feedstock web and/or the support liner may be printed on at least one of its sides before being processed in a die-cutting or perforating station.
  • prepared access openings mean that the flexible packaging web is weakened along the periphery of each respective access opening such that, when a resealable adhesive label covering an access opening is peeled off for the first time, the blanked part inside the access opening, which was prepared by die-cutting, perforating or the like, is removed from the flexible packaging web and adheres to the resealable adhesive label.
  • the access opening is formed by die-cutting, perforating, laser cutting or any other weakening or cutting method known in the manufacturing industry allowing for a precise cutting of only one layer of a multi-layer web. This ensures that only the flexible packaging web is cut and not the support liner.
  • the support liner may be separated from the flexible packaging web and wounded up on a supply roll.
  • the support liner can by any filmic material which can preferably be electrostatically charged.
  • the support liner can be a single layer web or a multi-layer web made of PP, polyester such as PET, polyethylene (PE), paper, or aluminium.
  • the adhesion between the flexible packaging web and the support liner is temporary and can be achieved by different chemical or physical means like vacuum, a thin layer of water, electrostatic charge, a removable adhesive or the like.
  • the flexible packaging web and the support liner are joined together, e.g. by two rollers pressing against each other or the like, wherein they thereby come into contact, whether directly or indirectly via an intermediate layer.
  • the support liner and the feedstock web are temporarily adhered to each other by charging both electrostatically before reaching the joining station.
  • the respective charging electrodes may have different charging surfaces to obtain the best possible adhesion between the feedstock web and the support liner.
  • the access openings of the flexible packaging web are made in a die-cutting or perforating station comprising at least one die-cutting or perforating tool and a rotatable counter cylinder, and wherein the flexible packaging web is guided over the counter cylinder to which the flexible packaging web is temporarily adhered.
  • the counter cylinder as well as the feedstock web fed to the die-cutting or perforating station may preferably be electrostatically charged to create a temporary adhesion or bond between the web and the counter cylinder. Consequently, the counter cylinder also serves to stabilize the web, wherein the stabilization is particularly necessary if the access openings have been die-cut, since then the areas of the flexible packaging web surrounding the die-cut access openings is locally weakened.
  • the flexible packaging web adheres to the counter cylinder at least when the contours of the access openings are being die-cut or perforated, and the resealable adhesive labels are applied to flexible packaging web to resealably cover the access openings.
  • the counter cylinder may serve as support surface for the die-cutting or perforating process.
  • the resealable adhesive labels are aligned to control marks when applied to the flexible packaging web.
  • control marks are printed on the flexible packaging web to precisely position the access openings and the resealable adhesive labels.
  • the printing techniques of the control marks can be one of the typical printing techniques such as flexographic printing, offset printing, silkscreen printing, rotogravure printing, digital printing or any other known printing technique.
  • the printing inks can be UV-inks, water-based inks or solvent-based inks.
  • the permissible position deviation between a control mark and its corresponding access opening as well as between the respective control mark and the corresponding resealable adhesive label is preferably less than 0.2 mm if a support liner is used. In case of a manufacturing by means of a counter cylinder the permissible position deviation is preferably less than 0.1 mm.
  • the two different ways of supporting the feedstock described above involve first die-cutting or perforating the access openings to be prepared in defined, preferably equidistantly spaced areas and then covering the prepared access openings with a resealable adhesive label.
  • the predefined areas intended for the provision of prepared access openings are labelled first with resealable adhesive labels and then the access openings are made by die-cutting or perforating, thus eliminating the need for a support liner or counter-cylinder to locally support the feedstock web while being die-cut, perforated or the like to prepare the access openings. Accordingly, an access opening in the flexible packaging web can also be made after applying a resealable adhesive label to the area intended for the provision of a prepared access opening by die-cutting or perforating.
  • an apparatus for manufacturing a flexible packaging web having areas with prepared access openings or areas intended for the provision of prepared access openings comprising at least:
  • the apparatus may further comprise at least a die-cutting or perforating station for generating the prepared access openings of the flexible packaging web to which a feedstock web is fed in a feeding direction from a feedstock web supply station.
  • a feedstock web supply station may comprise a supply roll onto which a feedstock web for a flexible packaging web is wound up.
  • access openings may be formed by die-cutting, perforating, laser cutting or any other weakening or cutting method known in the manufacturing industry allowing for a precise cutting of only one layer of a multi-layer web.
  • a labelling station may comprise a linear labeller or a rotary/carousel-type labeller.
  • the oscillating guiding device may preferably comprise at least receiving means at a receiving side of the oscillating guiding device to receive the flexible packaging web, and releasing means at a releasing side of the oscillating guiding device to release the flexible packaging web.
  • the receiving means and the releasing means may extend at least substantially across the flexible packaging web and may be arranged at least approximately parallel to each other and remote from each other, wherein a guide plane is defined at least approximately between the receiving means and the release means.
  • the oscillating guiding device may comprise means for oscillating the flexible packaging web in the guide plane, wherein the flexible packaging web is preferably oscillated transverse to the feeding direction.
  • the receiving means and the releasing means may each be a rotating cylinder, wherein the extension of the cylinder in its longitudinal direction corresponds at least to the width of the flexible packaging web.
  • the width of the flexible packaging web may be defined as the extension of the web transverse to the feeding direction.
  • Each rotating cylinder may be rotatably mounted on an inner shaft or the ends of the cylinders may be pivotably borne.
  • the receiving and releasing means may preferably be aligned parallel to each other and remote from each other, i.e. they do preferably not touch each other but are spaced apart.
  • the guide plane essentially corresponds to the plane in which the flexible packaging web is conveyed and which tangentially touches the receiving means and the releasing means.
  • the means for oscillating allow for an oscillating of the flexible packaging web in the guide plane, wherein the oscillating is carried out transverse to the feeding direction.
  • the means for oscillating the flexible packaging web in the guide plane may further preferably comprise at least first and second frame means for supporting the receiving means and the releasing means, and wherein the first and second frame means are configured to be reciprocally shifted in opposite directions being at least approximately parallel to the guide plane.
  • the first and second frame means may be rod-shaped elements which are at least approximately aligned parallel to each other and parallel to the guide plane.
  • Each rod-shaped element may be mounted to the ends of the rotating cylinders on one side.
  • the first and second frame means may be reciprocally shiftable in opposite directions to oscillate the flexible packaging guided over the receiving and release means transvers to the feeding direction.
  • the means for oscillating the flexible packaging web in the guide plane may comprise a tilting unit for reciprocally rotating the oscillating guiding device in the guide plane.
  • the tilting unit can be realized by an oscillating rotary movement of the parallel rotating cylinders, which are forming the receiving and releasing means, around a common centre point. Therefore, the whole oscillating guiding device must be rotatably borne.
  • the apparatus according to the present invention may comprise at least one sensor to detect one of the edges of the conveyed flexible packaging web guided over the oscillating guiding device.
  • the sensor may be a light barrier or a laser beam.
  • sensors can be used in the manufacturing process as well.
  • One of these sensors can detect the respective control mark to activate or initiate the die-cut process and/or to activate the labeller in order to label a resealable adhesive label over each prepared access opening.
  • the apparatus may further preferably comprise a joining station for at least temporarily adhering a support liner provided by a support liner supply station and the feedstock web to each other.
  • the joining station may be arranged upstream, with respect to the feeding direction, of the die-cutting or perforating station.
  • charging devices may be arranged upstream, with respect to the feeding direction, of the joining station, each at the travel path of the feedstock web and the support liner, for electrically charging the feedstock web and the support liner to adhere the feedstock web and the support liner at least temporarily to each other in the joining station.
  • the support liner station may comprise a supply roll onto which the support liner is wound up.
  • the die-cutting or perforating station of the apparatus may comprise at least one die-cutting or perforating tool, a rotatable counter cylinder and a first charging device for electrostatically charging the counter cylinder.
  • a second charging device may be arranged upstream, with respect to the feeding direction, of the die-cutting or perforating station at the travel path of the feedstock web for electrically charging the feedstock web to adhere the feedstock web and the counter cylinder at least temporarily to each other in the die-cutting or perforating station.
  • a labelling station may be arranged either downstream or upstream, with respect to the feeding direction, of the die-cutting or perforating tools of the die-cutting or perforating station and at the counter cylinder for applying a resealable adhesive label to each access opening generated by the die-cutting or perforating station.
  • the object according to the present invention can further be solved by an oscillating guiding device according to the specifications mentioned above.
  • a section of flexible packaging web 100 according to the present invention - having access openings each covered by a resealable adhesive label - is shown, wherein flexible packaging web 100 comprises, viewed in feeding direction FD, a left edge 102a and a right edge 102b. Furthermore, the section of the flexible packaging web 100 shows three equidistantly spaced access openings 104 each covered by a resealable adhesive label 106. All access openings 104 and resealable adhesive labels 106 are aligned with control marks 108.
  • Manufacturing such flexible packaging web 100 comprises several steps carried out by a manufacturing line apparatus as presented in Fig. 2 .
  • a first embodiment of a manufacturing method according to the present invention will be described stepwise starting from a feedstock supply station 110 providing a feedstock web 112.
  • Feedstock web 112 is conveyed into printing station 140 where control marks 108 are printed on feedstock web 112.
  • Printing station 140 is followed by UV-dryer or thermal dryer 142 drying the printed ink of printing station 140.
  • the printed feedstock web 114 is further conveyed to die-cutting or perforating station 150 to die-cut or perforate equidistantly spaced access openings 104, wherein, before entering die-cutting station 150, printed feedstock web 114 is joined together in a joining station 162 with a support liner 116 which is provided by a support liner supply station 130.
  • Support liner 116 stabilizes printed feedstock web 114 in the following process steps.
  • both are electrostatically charged by a charging device 160a, 160b, wherein charging devices 160a, 160b can be similar ones or different ones.
  • the printed and die-cut flexible packaging web 118 is further conveyed to labelling station 170.
  • labelling station 170 resealable adhesive labels 106 are applied on printed and die-cut flexible packaging web 118 to cover the prepared access openings 104 either by means of a linear labeller or a rotary labeller.
  • support liner 116 is separated from labelled flexible packaging web 100 and wound up onto third supply roll 180.
  • Oscillating guiding device 200 oscillates at least one of edges 102a, 102b of flexible packaging web 100 such that, when flexible packaging web 100 is wound up onto fourth supply roll 190, layered resealable adhesive labels 106 are slightly offset to each other transverse to feeding direction FD. Hence, a circumferential thickening at the circulating position of resealable adhesive labels 106 is avoided or at least reduced.
  • Fig. 3 shows a second embodiment of a manufacturing method according to the present invention, wherein the second embodiment differs from the first embodiment in that no support liner 116 is used, but a counter cylinder 132.
  • Counter cylinder 132 is also electrostatically charged by a charging device 160b and does also support printed feedstock web 114 and printed and die-cut flexible packaging web 118, respectively.
  • Counter cylinder 132 further serves as a support for die-cutting station 150 and labelling station 170. Due to the electrostatic charge of printed feedstock web 114 and counter cylinder 132 an adhesion between both is generated, whereby printed feedstock web 114 adheres to the surface of counter cylinder 132.
  • Both Figs. 2 and 3 show a manufacturing method supporting feedstock web 112 or printed feedstock web 114 by either support liner 116 or counter cylinder 132 in particular during die-cutting or perforating access openings 104 in die-cutting station 150.
  • labelling station 170 can be arranged either downstream or upstream, with respect to feeding direction FD, of die-cutting station 150.
  • Fig. 4 shows a side view of an oscillating guiding device 200 according to the present invention
  • Fig. 5 shows the corresponding top view of oscillating guiding device 200.
  • Oscillating guiding device 200 comprises as receiving means a receiving rotating cylinder 202 and as releasing means a releasing rotating cylinder 204. Both receiving rotating cylinder 202 and releasing rotating cylinder 204 are aligned at least approximately parallel to each other and are spaced apart.
  • the receiving side of oscillating guiding device 200 is downstream in relation to machine direction FD and the releasing side of oscillating guiding device 200 is upstream in relation to machine direction FD.
  • Flexible packaging web is at least substantially guided over receiving rotating cylinder 202 and releasing rotating cylinder 204 in a guide plane being parallel to a horizontal plane, wherein the guide plane substantially tangentially touches receiving rotating cylinder 202 and releasing rotating cylinder 204 at their top uppermost segment.
  • Receiving rotating cylinder 202 has a first end 206a and a second end 206b.
  • Releasing rotating cylinder 204 has also a first end 208a and a second end 208b.
  • the first ends 206a, 208a are mounted to first frame means 210 which may be a rod-shaped element, while the second ends 206b, 208b are mounted to second frame means 212 which may also be a rod-shaped element.
  • a sensor 220 is detecting the position and orientation of right edge 102b of flexible packaging web 100.
  • first rod-shaped element 210 is deflected in feeding direction FD by a certain distance without affecting the parallel alignment of both rod-shaped elements 210, 212, whereby the rotating cylinders 202, 204 are tilted out of the position in which their longitudinal axis is approximately perpendicular to feeding direction FD.
  • the rotating cylinders 202, 204 are still aligned parallel to each other in the tilted position. Due to the deflection of first rod-shaped element 210 flexible packaging web 100 is slightly pivoted. The pivoting of flexible packaging web 100 is detected by sensor 220 which determines the change of position of right edge 102b.
  • first rod-shaped element 210 will be deflected against feeding direction FD, preferably by the same distance as in feeding direction FD.
  • the alternating deflection of one of the rod-shaped elements 210, 212 in feeding direction FD and against feeding direction FD causes the oscillation of the edges of flexible packaging web 100.
  • Fig. 7 shows a further embodiment of oscillating guiding device 200 which is tilted as a complete unit, i.e. the longitudinal axes of the rotating cylinders 202, 204 remain aligned perpendicular to the longitudinal axes of the rod-shaped elements 210, 212.
  • oscillating guiding device 200 is rotated around a central centre which also causes flexible packaging web 100 to pivot slightly.
  • Fig. 8 shows a top view of a flexible package 300 for consumer goods comprising an outer housing 302.
  • Outer housing 302 is formed from a section of the flexible packaging web 100 according to the present invention having a prepared access opening 104 covered by a resealable adhesive label 106. Resealable adhesive label 106 extends beyond the contours of the prepared access opening 104. After accommodating the consumer goods inside outer housing 302, both ends 304, 306 of outer housing 302 are sealed.
  • Fig. 9 is a cross-sectional view of flexible package 300 along line A-A of Fig. 8 .
  • this view one can see that the lower surface of resealable adhesive label 106 is covered with a removable adhesive 107.
  • a blanked part 105 which is removed from the surrounding portion of the flexible package 300 due to the adhesive effect of removable adhesive 107 when the resealable adhesive label 106 covering access opening 104 is peeled off for the first time.
  • Container 400 for consumer goods is shown.
  • Container 400 comprises an outer housing 402 which comprises a box 404 and a lid 406 hinged to box 404.
  • an inner packaging 408 is accommodated which is formed from a section of flexible packaging web 100 having resealable adhesive label 106 covering a prepared access opening 104.
  • Container 400 is shown in an opened state, an automatic type of uncovering access opening 104 is presented, since resealable adhesive label 106 is permanently adhered to the inner surface of lid 406.
  • the access opening 104 can also be opened manually, wherein the resealable adhesive label 106 is not adhered to the inner surface of lid 406, but has to be grabbed, for example, at a handling portion of the resealable adhesive label 106 to be peeled off from inner packaging 408.
  • Inner packaging 408 is wrapped around consumer goods which are accommodated inside inner packaging 408.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
EP20168042.8A 2020-04-03 2020-04-03 Fabrication d'une bande d'emballage souple avec des ouvertures d'accès préparées par des étiquettes adhésives refermables Pending EP3888900A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20168042.8A EP3888900A1 (fr) 2020-04-03 2020-04-03 Fabrication d'une bande d'emballage souple avec des ouvertures d'accès préparées par des étiquettes adhésives refermables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20168042.8A EP3888900A1 (fr) 2020-04-03 2020-04-03 Fabrication d'une bande d'emballage souple avec des ouvertures d'accès préparées par des étiquettes adhésives refermables

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992019522A1 (fr) * 1991-05-03 1992-11-12 Eastman Kodak Company Commande d'enroulement de bande
EP0855354A2 (fr) * 1997-01-28 1998-07-29 Fuji Photo Film Co., Ltd. Procédé de bobinage et bobineuse pour matériau en bande
US20080060751A1 (en) * 2006-09-07 2008-03-13 Evan Arrindell Island label apparatus and method
US20130320019A1 (en) * 2012-05-22 2013-12-05 LaserSharp FlexPak Services, LLC Process to manufacture Peel-Reclose packaging film using laser scoring and pressure sensitive labels
WO2014179457A1 (fr) 2013-05-03 2014-11-06 Printpack Illinois, Inc. Emballages flexibles refermables tenant en position debout
EP3299314A1 (fr) 2012-02-15 2018-03-28 Philip Morris Products S.a.s. Récipient refermable amélioré comportant une étiquette à zone exempte d'adhésif
CN208471143U (zh) * 2018-06-20 2019-02-05 东莞市博盛新材料有限公司 一种锂电池隔膜的摆幅装置及收卷机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992019522A1 (fr) * 1991-05-03 1992-11-12 Eastman Kodak Company Commande d'enroulement de bande
EP0855354A2 (fr) * 1997-01-28 1998-07-29 Fuji Photo Film Co., Ltd. Procédé de bobinage et bobineuse pour matériau en bande
US20080060751A1 (en) * 2006-09-07 2008-03-13 Evan Arrindell Island label apparatus and method
EP3299314A1 (fr) 2012-02-15 2018-03-28 Philip Morris Products S.a.s. Récipient refermable amélioré comportant une étiquette à zone exempte d'adhésif
US20130320019A1 (en) * 2012-05-22 2013-12-05 LaserSharp FlexPak Services, LLC Process to manufacture Peel-Reclose packaging film using laser scoring and pressure sensitive labels
WO2014179457A1 (fr) 2013-05-03 2014-11-06 Printpack Illinois, Inc. Emballages flexibles refermables tenant en position debout
CN208471143U (zh) * 2018-06-20 2019-02-05 东莞市博盛新材料有限公司 一种锂电池隔膜的摆幅装置及收卷机

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