EP1813547A1 - Procédé d'emballage pour produits alimentaires - Google Patents

Procédé d'emballage pour produits alimentaires Download PDF

Info

Publication number
EP1813547A1
EP1813547A1 EP07100883A EP07100883A EP1813547A1 EP 1813547 A1 EP1813547 A1 EP 1813547A1 EP 07100883 A EP07100883 A EP 07100883A EP 07100883 A EP07100883 A EP 07100883A EP 1813547 A1 EP1813547 A1 EP 1813547A1
Authority
EP
European Patent Office
Prior art keywords
sealing substance
applying
web
substance
wrapping
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Withdrawn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
EP07100883A
Other languages
German (de)
English (en)
Inventor
Arturo Giusti
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.)
Policarta Srl
Original Assignee
Policarta Srl
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 Policarta Srl filed Critical Policarta Srl
Publication of EP1813547A1 publication Critical patent/EP1813547A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • B65D65/16—Wrappers or flexible covers with provision for excluding or admitting light
    • B65D65/18—Wrappers or flexible covers with provision for excluding or admitting light with some areas transparent and others opaque

Definitions

  • the present invention refers to a method for making wrappings for the packaging of food products, in particular optionally hot bread-making products.
  • the invention further refers to a method for forming a continuous web - optionally composite - for the forming of said wrappings, and to an apparatus for implementing said methods.
  • some of these webs are already prearranged for the closing of the wrappings, bearing to this end a deposition of sealing substance, in particular glue.
  • a deposition of sealing substance in particular glue.
  • Such a deposition can be carried out at privileged zones of the web surface, as envisaged in the Italian Pat. N°. 1 275 612 to the same applicant.
  • This discontinuous deposition keeps substantially unaltered the permeability features of the materials of which the wrapping is comprised of, allowing transpiration of the packaged product, e.g. allowing bread or hot-packaged products to let out of the sealed packaging the excess of H 2 O steam generating during their life period.
  • this type of deposition may entail the restriction of allowing to seal the packaging merely at the zones of deposition of the bonding substance.
  • Such a feature proves rather inadequate for some users' typologies (e.g., supermarkets or small shops), where there is the need to package a plurality of different products, e.g. different sizes of bread, changing the packaging material and the related packaging machine setting the least number of times possible.
  • a further type of web subject-matter of the Italian Pat. N°. 1 294 254 to the same applicant, has a deposition of honeycomb bonding agent, distributed according to a thick regular grid on an entire face of the web or portion thereof, said grid allowing the forming of glue points when the web surface concerned is folded onto itself
  • This solution preserves web transpirability and, with respect to a continuous spreading, it reduces the amount of adhesive substance used.
  • web adhesiveness is anyhow restricted by the deposition pattern.
  • it is found the need due both to economical and, above all, food safety considerations, to further reduce the amount of sealing substance used.
  • the technical problem set and solved by the present invention is to provide a method for making wrappings for the packaging of food products allowing to overcome the drawbacks mentioned above with reference to the known art.
  • the web and the wrapping according to the invention exhibit substantially continuous sealability, concomitantly preserving the transpirability properties of the packaging and allowing a reduction in the amount of bonding substance used with respect to a web treated on the entire surface area thereof with a continuous spreading, allowing also the option of use of chemically stable materials eliminating the risk of contamination of the packaged product by the sealing substance, and of migration of the latter into the product itself.
  • said method envisages the making of wrappings for the packaging of food products, in particular hot bakery products, from a continuous composite web of sheet material, the latter denoted by 1 in said figures.
  • said web 1 is a composite web formed by two longitudinal strips 2 and 3 of laminate sheet material, in particular paper material, between which it is interposed a central strip 4 of translucent material, in particular cellophane or PLA (polylactic acid), polypropylene or see-through paper.
  • a central strip 4 of translucent material in particular cellophane or PLA (polylactic acid), polypropylene or see-through paper.
  • the composite web 1 may be formed in the same production cycle considered herein or in a separate cycle. As it is shown in Figure 2, said lateral strips 2 and 3 are joined to the central strip 4 by continuous glue depositions in the form of longitudinal strips 5. Said depositions 5 may be of a conventional type, therefore they will no further be dwelt upon. Moreover, the web 1 may be prearranged with longitudinal glue depositions 6 apt to allow the longitudinal closing of the wrappings being formed. Even these depositions may be of a conventional type, and these aspects will no further be dwelt upon.
  • the web 1 further has, in correspondence of the entire surface of the face that can bear the longitudinal depositions 6 - with the possible exception of the portion covered by the latter - sealing substance depositions carried out according to a substantially random distribution or pattern.
  • 'random distribution it is meant that it is such as to leave portions of random extension and arrangement of said surface free from said substance.
  • the applying of the sealing substance is such as to involve only a preset percentage of said surface of each wrapping or of the continuous web 1, leaving the remaining surface free therefrom.
  • a preset percentage is comprised in a range of about 8-80 % of the total area of the surface concerned by the applying of sealing substance and, more preferably, in a range of about 10-30 % of said total area, so that the web substantially does not lose more than the 10-50% of its own features of permeability to air and H 2 O steam.
  • the sealing substance may be a bonding agent or a heat-sealing substance, like e.g. a substance selected from a polyolefin group comprising polyethylene, polypropylene, polybutylene succinate (PBS), polycaprolactone, polylactic acid, alcohol, polyvinyl alcohol, acrylic adhesives, other plastic polymers and materials with equivalent properties or mixtures of said materials.
  • the heat-sealing substance has a melting point comprised in a range of about 60-170 °C.
  • the substance used exhibits chemical stability to polar chemical products and H 2 O steam, so as not to be altered by standard transpiration processes through the paper material of the wrappings.
  • Said random distribution may be attained with a spreading technique and/or with a spray or nebulizing technique, or even by elements applying the substance in the form of threads or spirals, elongating on the web depending on the speed of travel thereof
  • FIG 3 it is depicted, purely by way of example, a device implementing a further technique for applying the sealing substance, in particular in this case a heat-sealing substance, according to the random distribution of the invention.
  • the heat-sealing substance is fed in the form of grains 70 to a hopper 8, through which the substance in grains descends, e.g. by mere gravity, to the continuous web 1.
  • the hopper 8 is associated to heating means, causing a melting of the substance as the latter travels onto the hopper itself.
  • the molten substance is then applied onto the web by means of a spreader 9.
  • the heat-sealing substance thus deposited onto the web can solidify again in the subsequent processing steps and be locally reactivated at the closing of the wrappings.
  • the above-mentioned random distribution can be attained in this case by adjusting the amount or the rate of the heat-sealing substance fed to the hopper, depending on the speed of travel of the web 1.
  • the present embodiment further provides that the web 1 be subdivided into individual blanks and that each of them forms a wrapping in the same processing cycle.
  • each blank is folded tube-like so as to bring the longitudinal depositions 6, and optionally the areas - even longitudinal ones - concerned by the random applying of the heat-sealing substance, to match in order to attain just the longitudinal closing of the wrapping by glue heating and reactivation, and so that transversal end portions of the tube thus obtained be pressed and heated between each other to cause an activation of the random distribution sealing substance, thereby attaining a bag-like packaging.
  • the food product enclosed in the same bag has not been depicted in said figures.
  • the random distribution of the invention allows the sealability of the packaging at any point thereof, thereby allowing to obtain wrappings of different type and dimensions without substantially modifying neither the production cycle nor the production apparatus.
  • the random distribution of the invention allows also to control the permeability of a web or of a wrapping.
  • said random distribution with different sealing substances and depending on the type of product to be packaged, from a same base web there may be produced different percentages of deposition-concerned surface and/or amounts, and webs exhibiting different permeabilities,.
  • the technique of the invention allows to drastically reduce (even more than 50%) the amount of sealing substance used with respect to a continuous deposition, though attaining substantially the same effects of the latter from the point of view of material weldability.
  • the invention also refers to a method for making one or more wrappings not necessarily obtained from a continuous web, and, vice versa, also to a production cycle in which the web is prearranged for the forming of wrappings and in which the latter are obtained thereafter in a separate process.
  • the continuous web may also be of a type different from the above-described one, e.g. not composite or having a composition or configuration different from the above-described one.
  • the random distribution may be used also for the forming of the continuous web and/or for the longitudinal closing of the wrappings.
  • sealing substance when as in the above-described embodiment there are further depositions of sealing substance not having a random pattern, these may have a preset deposition pattern, e.g. a continuous or grid-like pattern.
  • the invention further refers to an apparatus comprising means apt to carry out the method of the invention in all of the hereto-described features and variants.
EP07100883A 2006-01-30 2007-01-22 Procédé d'emballage pour produits alimentaires Withdrawn EP1813547A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITRM20060045 ITRM20060045A1 (it) 2006-01-30 2006-01-30 Metodo di realizzazione di involucri per prodotti alimentari

Publications (1)

Publication Number Publication Date
EP1813547A1 true EP1813547A1 (fr) 2007-08-01

Family

ID=38024143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07100883A Withdrawn EP1813547A1 (fr) 2006-01-30 2007-01-22 Procédé d'emballage pour produits alimentaires

Country Status (2)

Country Link
EP (1) EP1813547A1 (fr)
IT (1) ITRM20060045A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2452816A1 (fr) * 2010-11-16 2012-05-16 Gimsa S.r.l. Voile composite renforcée
EP2700587A1 (fr) * 2012-06-18 2014-02-26 Karl Kimmlinger Moyen d'emballage
CN109294132A (zh) * 2018-08-24 2019-02-01 孙世华 一种电子产品塑料包装材料的制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992019508A1 (fr) * 1991-05-02 1992-11-12 United Biscuits (Uk) Limited Ameliorations apportees a l'emballage de produits alimentaires
EP0765744A2 (fr) * 1995-09-28 1997-04-02 Policarta S.r.l. Machine et procédé pour obtenir un ruban composite continu pour la production d'emballages de produits alimentaires, ainsi que le ruban et les emballages ainsi obtenus
FR2780706A1 (fr) * 1998-07-02 2000-01-07 Papiers A Paviot Papier thermoscellable destine a l'emballage de produits frais et emballage utilisant un tel papier
WO2001037614A1 (fr) * 1999-11-19 2001-05-25 Conagra, Inc. Emballage pour micro-ondes a colle appliquee en motif, et procedes correspondants
US20050269386A1 (en) * 2004-05-28 2005-12-08 Packaging Dynamics Operating Company Food wrap

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992019508A1 (fr) * 1991-05-02 1992-11-12 United Biscuits (Uk) Limited Ameliorations apportees a l'emballage de produits alimentaires
EP0765744A2 (fr) * 1995-09-28 1997-04-02 Policarta S.r.l. Machine et procédé pour obtenir un ruban composite continu pour la production d'emballages de produits alimentaires, ainsi que le ruban et les emballages ainsi obtenus
FR2780706A1 (fr) * 1998-07-02 2000-01-07 Papiers A Paviot Papier thermoscellable destine a l'emballage de produits frais et emballage utilisant un tel papier
WO2001037614A1 (fr) * 1999-11-19 2001-05-25 Conagra, Inc. Emballage pour micro-ondes a colle appliquee en motif, et procedes correspondants
US20050269386A1 (en) * 2004-05-28 2005-12-08 Packaging Dynamics Operating Company Food wrap

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2452816A1 (fr) * 2010-11-16 2012-05-16 Gimsa S.r.l. Voile composite renforcée
EP2700587A1 (fr) * 2012-06-18 2014-02-26 Karl Kimmlinger Moyen d'emballage
CN109294132A (zh) * 2018-08-24 2019-02-01 孙世华 一种电子产品塑料包装材料的制备方法

Also Published As

Publication number Publication date
ITRM20060045A1 (it) 2007-07-31

Similar Documents

Publication Publication Date Title
JP6178848B2 (ja) 可溶性のパウチの回転可能な連続成型動作の改良
EP0241263B2 (fr) Fabrication de feuilles absorbantes multicouches
KR102637476B1 (ko) 종이 백 및 그의 제조 방법
EP1813547A1 (fr) Procédé d'emballage pour produits alimentaires
CA2462186C (fr) Procede de production d'un emballage hermetiquement ferme soluble dans l'eau
SE436487B (sv) Sett och apparat for att framstella en forpackning
US10781000B2 (en) Apparatus and process for forming water soluble pouches
KR20170013983A (ko) 패키징 및 그것의 제조 방법
EP1874510A1 (fr) Procede pour realiser un couvercle dote d'un orifice
EP3305515B1 (fr) Dispositif et procédé de fabrication d'un conditionnement en sachet
AU2002331959A1 (en) Process for producing a sealed water-soluble package
US5085718A (en) Process for bonding a cardboard blank laminated with plastic film, particularly for hinge-lid cigarette packets
KR100559309B1 (ko) 멀티-라미나 식품 저장 랩
US10329065B2 (en) Easy open flow wrappers
CA2987286A1 (fr) Procede et appareil de fabrication de sachets solubles dans l'eau
CN105980260A (zh) 用于皂条的包装件
WO2015024996A1 (fr) Plateau à bougies
US3466836A (en) Method of packaging flat articles
IT201600126510A1 (it) Macchina e procedimento per realizzare confezioni contenenti prodotti liquidi o pastosi.
CN108313492A (zh) 一种防潮且透气的ffs包装袋
JP2017524409A (ja) 向上された封止を有する包みシートを形成するための方法
IT9067469A1 (it) Vassoio ad alveoli, particolarmente per il confezionamento di prodotti dolciari, suo procedimento di fabbricazione ed impianto per l'attuazione del procedimento.
NL8020089A (nl) Inrichting en werkwijze voor het vervaardigen van een houder voor voedsel en dergelijke.

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

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: 20080202