EP1144266A2 - Procede, appareil et materiau d'emballage en rouleau - Google Patents

Procede, appareil et materiau d'emballage en rouleau

Info

Publication number
EP1144266A2
EP1144266A2 EP00925453A EP00925453A EP1144266A2 EP 1144266 A2 EP1144266 A2 EP 1144266A2 EP 00925453 A EP00925453 A EP 00925453A EP 00925453 A EP00925453 A EP 00925453A EP 1144266 A2 EP1144266 A2 EP 1144266A2
Authority
EP
European Patent Office
Prior art keywords
wrapping material
article
wrapping
articles
adhesive
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Withdrawn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
EP00925453A
Other languages
German (de)
English (en)
Inventor
Royston Stanley Maynard
Neil Stewart
Andrew Hamilton
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.)
Premier Packaging Systems (Norwich) Ltd
Original Assignee
Premier Packaging Systems (Norwich) Ltd
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 Premier Packaging Systems (Norwich) Ltd filed Critical Premier Packaging Systems (Norwich) Ltd
Publication of EP1144266A2 publication Critical patent/EP1144266A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/18—Registering sheets, blanks, or webs
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/14—Wrappers or flexible covers with areas coated with adhesive

Definitions

  • the present invention relates to a method and apparatus chiefly used in wrapping products, usually serially grouped products (i.e. the products are arranged linearly, adjacent one another) and more particularly to a method and apparatus for roll wrapping and materials therefor.
  • Roll wrapping methods, apparatus and materials have been used for many years in many different forms.
  • Roll wrapping methodology is normally applied to the wrapping of serially grouped confectionery and tablets but may equally be applied to single articles.
  • the articles or rolls of articles are cylindrical but articles or rolls of articles having ovoid and square or rectangular cross-sections are also handled by roll wrapping apparatus.
  • the invention is directed particularly to roll wrapping (in its broadest sense) which results in a wrapped product having a sealed seam running along a peripheral longitudinal axis of the product.
  • Hot melt adhesives are known to be particularly problematic.
  • a known solution to the use of hot and cold melt adhesives and the like is the use of cold seal or pressure-sensitive adhesives.
  • adhesive is applied to one side only of the wrapping material in strips along opposing edges of one side which when rolled about an article are joined in a fin seal. Consideration has been given to applying cold seal adhesive to both sides of the wrapping material but "blocking" occurs when drawing material off from a reel where the facing regions of adhesive meet and adhere to one another.
  • the material web of WO 92/19508 features convoluted patterns of adhesive which must be produced to a high tolerance and must match the printed matter on the outer surface of the material. It is the transverse portions of applied adhesive on the web that are used to form the longitudinal seals and thus indexing and cutting accuracy dictates how efficient a seal is made. Cut timing advancement or retardation will adversely affect the resultant seal or increase the reject rate. Accordingly, indexing of the material when the adhesive is being applied and when wrapping a product is critical. Additionally, the web of material must be severed at predetermined intervals set by the adhesive pattern rather than the printed matter which is more easily recognised electronically.
  • the convoluted patterns are presented to facilitate end sealing with the cold seal adhesive but, as conceded in the disclosure, there remains exposed adhesive on the ends after sealing. This may present cetain disadvantages in storage and presentation as wrapped packs may adher to one another on presentation stands or may adhere to containing boxes or other packaging. Variations in indexing, cut length or product size (diameter) will disadvantageously effect the alignment of the adhesive.
  • a method of wrapping articles or rolls of individual articles, such as confectionery or tablets comprising:
  • dispensing a continuous sheet of wrapping material defining inner and outer longitudinal edge regions to which cold seal (pressure sensitive) adhesive has been selectively applied prior to dispensing;
  • This arrangement obviates the requirement for adhesives to be applied to the wrapping material immediately prior to the wrapping material being placed in wrappable proximity to the article.
  • the method comprises the step of disposing the adhesive on the wrapping material in two continuous strips, one along an edge region of a first surface and the other strip being positioned along the corresponding edge region of the opposite surface of the wrapping material so as to form the lap seal, the adhesive strips and wrapping material together having an orientation consistent with the longitudinal axis of the article or roll to be wrapped.
  • the provision of adhesive along one edge of opposite sides of the material prevents blocking of the material when presented in a roll form.
  • the wrapping material is sealed around each article or roll of articles along an axis parallel to the direction in which the wrapping material is dispensed.
  • the wrapping material is sealed around each article or roll of articles along an axis perpendicular to the direction in which the wrapping material is dispensed, the method including reorienting the dispensed material through 90° so that the material is presented for receiving an article or article roll pe ⁇ endicular to the direction of travel thereof.
  • the wrapping material is sealed around the product about an axis pe ⁇ endicular to the axis about which the wrapping material is originally rolled.
  • the method includes folding the wrapping material to provide end folds and sealing the end folds.
  • the end folds may be heat sealed.
  • the invention provides apparatus for wrapping articles or rolls of individual articles, such as confectionery or tablets, the apparatus comprising:
  • conveying means for placing the wrapping material in wrappable proximity with an article or article roll; wrapping means for engaging material around each article or roll of articles;
  • the means for engaging material around an article or roll to be wrapped comprises means for carrying a first edge section of the material, having an outwardly disposed adhesive strip, into overlying contact with the article or roll and the sealing means comprises means for ensuring intimate contact of a second edge section of the material, having an inwardly disposed adhesive strip, with the first edge section, said sealing means applying pressure to the overlying strips which adhere to one another on pressured contact.
  • the means for dispensing a continuous sheet of wrapping material is disposed so as to present said wrapping material pe ⁇ endicularly to the direction of travel of the articles or article rolls.
  • the wrapping material is dispensed in a direction parallel to the direction of travel of the articles or article rolls, said apparatus including means to reorienting dispensed material through 90° so that the material is presented for receiving an article of article roll pe ⁇ endicular to the direction of travel thereof.
  • the means for reorienting of dispensed material comprises at least one deflecting roller and a set of floating jockey rollers adapted to attenuate stresses at or adjacent the or each deflecting roller.
  • the invention also includes within its scope an elongate sheet of wrapping material for wrapping articles or rolls of articles, the material defining first and second longitudinal edge regions on inner and outer in use surfaces, one region of each surface having applied thereto a layer or strip of cold seal (pressure sensitive) adhesive, the layers or strips being so a ⁇ anged that upon forming the wrapping material into a roll, one adhesive carrying section overlies the adhesive carrying section of the other surface to form a longitudinal lap seal.
  • a first advantange of this a ⁇ angement is that it facilitates the use of a material web having a pre-applied cold seal adhesive without an interleaving web. Another advantage is that the adhesive can be applied in a continuous strip along the respective edges of the material without consideration to indexing or the positioning of printing on the outwardly presented side of the material.
  • the adhesive is provided in the form of a continuous strip and is provided along one side of each outer edge of a dispensed wrapping material sheet.
  • the material when formed into a reel does not present adhesive to adhesive contact thereby minimising blocking.
  • the material includes a printed surface over which there is applied a release agent layer to minimise adhesion of the cold seal adhesive to the printed surface.
  • the wrapping material comprises a laminated structure including a substrate, a printed surface and a release agent layer.
  • the wrapping material includes a heat sealable layer on the inner surface thereof to facilitate sealed folded ends.
  • the wrapping material includes a heat sealable release lacquer.
  • the material is provided in the form of an elongate sheet having fold lines therein so that discrete sections of wrapping material are foldable without one strip of adhesive interfering or adhering to another in storage.
  • the invention has as its primary focus the wrapping of series of disc-shaped articles such as confectionery and tablets. It will be appreciated by those skilled in the art that the invention may equally be applied to any rod or roll shaped articles or collection of articles having a cylindrical cross-section. Articles having ovoid, rectangular and square cross-sections are also facilitated.
  • Figure 1 is a diagrammatic representation of an apparatus operating a series of method steps
  • Figure 2 is a section through wrapping material for use in the apparatus and method.
  • Figure 3 shows the wrapping material in plan.
  • a reel 10 of wrapping material 12 is mounted about spindle 11.
  • the wrapping material 12 is unwound from the reel 10 - direction of the flow of wrapping material 12, being shown in Figure 1 by the arrows - and then passes via a series of tensioning wheels 13, through a splicer 14.
  • Splicer 14 acts to maintain a continuous supply of wrapping material 12 through the rest of the apparatus, when the wrapping material 12 on reel 10 runs out.
  • a device (not illustrated) in splicer 14 senses when this situation has been reached, and switches its uptake of wrapping material 12 to reel 10A, at the same splicing the end of wrapping material from reel 10, to the beginning of material 12 from reel 10 A. Down-time of the apparatus is thus reduced.
  • the material passes, via another series of tensioning wheels 15 to the coder 16, which coder 16 acts to ensure that data such as, for example, batch number, used by date are recorded on the wrapping material 12.
  • the wrapping material 12 is passed via further tensioning guide wheels 17 from where it is taken by an indexing assembly 18 which includes a set of pinch rollers 18a one of which is driven by an indexing or stepper motor drive (not shown).
  • a cutter 19 cuts appropriately sized sections from the wrapping material 12. The cut length is dictated by an electronic eye (sensor) which registers an indexing mark applied to the printed outer surface of the material. Should the cut timing advance or retard this will be sensed by the eye and the appropriate adjustment made to the indexing or stepper motor.
  • the sections are then passed via grippers (not illustrated) to the wrapping section 20. It should be noted that the grippers need not be applied before the material is cut.
  • the articles to be wrapped are brought in from a direction generally at right angles to the flow of the wrapping material to a position underneath, and in contact with, the centre of the section of wrapping material 12.
  • the article or roll of articles is then carried with the material into a wrapping head where a wrapping head belt rolls the article and applies pressured contact thereto.
  • the wrapping material 12 is wrapped around the article or article roll 21 - here illustrated in the form of a linearly a ⁇ anged group of disc shaped confectionery - and sealed to itself by means of cold seal adhesive strips on its edges.
  • the axis about which the wrapping material 12 is wrapped around the article or roll is parallel to the longitudinal axis of the material that is directed along the length of the wrapping material 12. The open ends of the tube of wrapping material 12 thus formed are then folded and heat sealed.
  • the wrapping material spindle 11 as shown in Figure 1 is parallel to the direction of travel of the articles or article rolls 21, thus dictating the direction in which the material 12 is dispensed.
  • the dispensing direction is parallel to the direction of travel of the articles or rolls, thereby streamlining the overall profile of the apparatus.
  • at least one deflection roller is provided to re-orientate the material before being cut and presented for receiving an article or article roll.
  • a set of jockey rollers are provided to absorb shock transmitted through the material on indexing and cutting particularly to attenuate stresses across the or each deflection roller.
  • the apparatus is shown functioning with two reels of wrapping material, this is not essential to the invention, and the apparatus can be satisfactorily used with one or more reels.
  • Figure 2 shows a cross section of wrapping material, being viewed in a direction along the length of the elongate sheet of wrapping material, for use in the above process.
  • Paper 30 having a surface density of approximately 70 grams per square metre, and having an upper surface 31 and a lower surface 32, across its width on the lower surface 32, by a polyethylene web 33 of thickness approximately 15 microns.
  • a first strip of cold seal adhesive 34A is present along the edge of the upper surface 31 of the paper.
  • a second strip of cold seal adhesive 34B is present along the edge of the lower surface of the polyethylene web 33, diagonally opposite the first strip 34 A.
  • Print 35 is applied to the upper surface of the paper 31, the print 35 then being sealed in position by a heat sealable coating 36 inco ⁇ orating a release agent or having a surface to which cold seal adhesive is not known to stick.
  • a heat sealable coating 36 inco ⁇ orating a release agent or having a surface to which cold seal adhesive is not known to stick.
  • Polyamide release lacquers or coatings are prefe ⁇ ed and these may be water or solvent based according to application.
  • Figure 3 shows a section of wrapping material and further illustrates the cold seal adhesive strips 34A and B in relation to the wrapping material 12.
  • the strips run along the flat surface of the wrapping material 12, along its length.
  • 34A runs on the upper surface, whilst 34B runs along the lower surface.
  • a product 21 will normally be situated between the two strips of adhesive 34 A and B (at position 20 in Figure 1). Wrapping material 12 will then be wrapped around product 21, to bring strips 34A and B into contact, thus effecting a longitudinal seal and forming an open tube.
  • Inco ⁇ orated in the invention is the sealing or securing of the end seals. Twist seals may be adequate in many instances however folded ends are prefe ⁇ ed. Certain materials are amenable to "dead-folding" but other packages require a hygienic seal. By applying a heat sealable lacquer or coating to the material end sealing is achieved. A heat reactivated overlacquer with cold seal release activity is preferred. Certain articles will not tolerate end heat sealing, for example, chocolate and dead-folding foil or like materials may be required.
  • sealant need not be in the form of a continuous strip but could have gaps at defined intervals, of a defined size.
  • sealant would not necessarily be desirable on either or both sides of the wrapping material.
  • the cold seal as described above may also be used, if desired, in conjunction with other sealing means.
  • a heat sealable coating may also be present on either or both of the surfaces of the wrapping material, to assist the formation of a longitudinal seal.
  • wrapping material can be used as wrapping material for the present invention.
  • the material can be made of foldable plastics, including thermoplastics.
  • paper or foil may be used.
  • wrapping material formed from paper and plastic is illustrated.
  • Polyethylene material here can be between 10 to 20 microns in thickness. Also a portion or all of the polyethylene can be replaced with polypropylene.
  • the more suitable papers used will typically have a surface density of 50 to 85 grams per square metre.
  • a heat seal coated paper, a plastic film such as orientated polypropylene film, coextruded and coated polyethylene film, coextruded and coated cast polypropylene film or polyvinylchloride film may be used.
  • heat seal coated regenerated cellulose film is considered.
  • double wrap products can also be formed using the above materials, machinery and methodology as adapted.
  • the method is suitable for wrapping disc-shaped product and those with a square, rectangular, or oval profiles. It can also be used for products in the form of sticks and the like.
  • the apparatus and method is principally for use using a cold seal, hot melt or heat seals may additionally be used.
  • unrolling shall be taken to include extending a continuous sheet of wrapping material, from the compact form in which it is supplied, for example in the concertina like configuration often used for computer paper. It will be appreciated, however, by those familiar with the art that primary advantages of a material having cold seal (pressure sensitive) adhesive is that rolls of material having pre-applied adhesive can be easily handled and used.
  • An advantage of the present invention relates particularly to improved high speed wrapping without on-machine glue application and the speed improvements facilitated by providing in-line feed of material with the cutting, gripping and positioning thereof. This compares favourably and indeed exceeds the performance achieved using traditional offset feeding of material before gripping, cutting and subsequently positioning the material over an article or article roll to be wrapped.
  • the prefe ⁇ ed diameter range of products wrapped is presently between 10mm and

Abstract

La présente invention concerne un procédé, un appareil et un matériau relatifs au dépôt d'un adhésif de soudure par pression à froid sur un matériau d'emballage pour articles et rouleaux d'articles. Ce matériau comprend un substrat en papier, plastique ou aluminium formant deux surfaces présentant chacune deux zones de bord, l'adhésif étant appliqué sur une zone de chaque surface de manière à former un scellage chevauchant lorsqu'un article est emballé en rouleau. Les procédé et appareil d'emballage impliquent la présentation d'un matériau d'emballage modifié, puis la disposition d'une partie de bord contenant l'adhésif sur l'autre pour former une soudure à contact continue sur la longueur d'un axe périphérique longitudinal des articles ou des rouleaux ainsi emballés.
EP00925453A 1999-04-23 2000-04-25 Procede, appareil et materiau d'emballage en rouleau Withdrawn EP1144266A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9909339 1999-04-23
GBGB9909339.5A GB9909339D0 (en) 1999-04-23 1999-04-23 Roll wrapping apparatus,materials and processes
PCT/GB2000/001428 WO2000064777A2 (fr) 1999-04-23 2000-04-25 Procede, appareil et materiau d'emballage en rouleau

Publications (1)

Publication Number Publication Date
EP1144266A2 true EP1144266A2 (fr) 2001-10-17

Family

ID=10852108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00925453A Withdrawn EP1144266A2 (fr) 1999-04-23 2000-04-25 Procede, appareil et materiau d'emballage en rouleau

Country Status (6)

Country Link
EP (1) EP1144266A2 (fr)
AU (1) AU4417800A (fr)
CA (1) CA2335864A1 (fr)
GB (2) GB9909339D0 (fr)
WO (1) WO2000064777A2 (fr)
ZA (1) ZA200100643B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016226B4 (de) * 2004-04-01 2007-10-11 Schmid Baukunststoffe Gmbh Vormontagefertige Verpackung eines rollbaren Dichtungsbandes
US8512851B2 (en) * 2008-05-01 2013-08-20 Tama Plastic Industry Wrapping material with opposing adhesive means
EP2266892A1 (fr) * 2009-06-25 2010-12-29 Amcor Flexibles Transpac N.V. Emballage avec joint à la base de scellage à froid et de verni seperateur, et méthode de production correspondante
EP3105140B1 (fr) 2014-02-12 2017-12-20 Metpro Limited Moyen d'emballage industriel auto-scellant
ITUB20155888A1 (it) * 2015-11-25 2017-05-25 Soremartec Sa Procedimento di confezionamento di un prodotto alimentare e foglio di incarto impiegato nel processo
DE102016111899A1 (de) * 2016-06-29 2018-01-04 Theegarten-Pactec Gmbh & Co. Kg Verfahren zum Verpacken und Verpackungsmittel mit reaktivierbarem Kaltsiegelhaftbereich

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237113A1 (fr) * 1986-02-27 1987-09-16 Matco Division of Bordex B.V. Procédé et appareil d'enveloppement d'articles dans un film en matière plastique
DE19626157A1 (de) * 1996-06-28 1998-01-02 Pactec Verpackungsmaschinen Fa Verfahren und Einschlagvorrichtung zum Verpacken kleinstückiger Artikel in einer Packung mit Flügelknoten

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055576A (en) * 1959-05-06 1962-09-25 Bemis Bro Bag Co Roll wrapping
GB960609A (en) * 1960-02-02 1964-06-10 Billeruds Ab Improvements in and relating to bags
GB1334152A (en) * 1971-03-12 1973-10-17 Izdatelstvo Izvestia Sovetov Apparatus for wrapping articles with wrapping material
DE3544384C1 (de) * 1985-12-14 1987-07-09 Unilever Nv Verpackungsmaterial
DE9014155U1 (fr) * 1990-10-11 1990-12-20 Teich Ag, Obergrafendorf, At
GB9109576D0 (en) * 1991-05-02 1991-06-26 United Biscuits Ltd Improvements in and relating to wrapping food products
JPH07291351A (ja) * 1994-04-18 1995-11-07 Fuji Photo Film Co Ltd 包装体
GB2281731B (en) * 1994-10-27 1996-12-11 Andrew William Wilkey Sleeved packaging
DE19503770C2 (de) * 1995-02-04 2002-07-11 Scheuch Folien Papier Kg Verpackung für tafel- oder riegelförmige Lebens- oder Genußmittel
EP0891930A1 (fr) * 1997-07-17 1999-01-20 Alusuisse Technology & Management AG Feuille d'emballage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237113A1 (fr) * 1986-02-27 1987-09-16 Matco Division of Bordex B.V. Procédé et appareil d'enveloppement d'articles dans un film en matière plastique
DE19626157A1 (de) * 1996-06-28 1998-01-02 Pactec Verpackungsmaschinen Fa Verfahren und Einschlagvorrichtung zum Verpacken kleinstückiger Artikel in einer Packung mit Flügelknoten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0064777A3 *

Also Published As

Publication number Publication date
WO2000064777A2 (fr) 2000-11-02
WO2000064777A3 (fr) 2002-10-03
AU4417800A (en) 2000-11-10
ZA200100643B (en) 2001-09-05
GB9909339D0 (en) 1999-06-16
GB2349128A (en) 2000-10-25
GB0009961D0 (en) 2000-06-14
CA2335864A1 (fr) 2000-11-02

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