EP2080706B2 - Chaîne de sacs - Google Patents

Chaîne de sacs Download PDF

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Publication number
EP2080706B2
EP2080706B2 EP08000766.9A EP08000766A EP2080706B2 EP 2080706 B2 EP2080706 B2 EP 2080706B2 EP 08000766 A EP08000766 A EP 08000766A EP 2080706 B2 EP2080706 B2 EP 2080706B2
Authority
EP
European Patent Office
Prior art keywords
bags
bag
spacers
accordance
bag chain
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.)
Active
Application number
EP08000766.9A
Other languages
German (de)
English (en)
Other versions
EP2080706A1 (fr
EP2080706B1 (fr
Inventor
Alfred Remmele
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.)
Suedpack Verpackungen & Co KG GmbH
Original Assignee
Suedpack Verpackungen & Co KG GmbH
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
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Application filed by Suedpack Verpackungen & Co KG GmbH filed Critical Suedpack Verpackungen & Co KG GmbH
Priority to EP08000766.9A priority Critical patent/EP2080706B2/fr
Publication of EP2080706A1 publication Critical patent/EP2080706A1/fr
Publication of EP2080706B1 publication Critical patent/EP2080706B1/fr
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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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/007—Details of, or accessories for, sacks or bags for facilitating the separation of the two walls, e.g. walls of inequal height, tabs; for maintaining the mouth of the sack or bag open
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/002—Rolls, strips or like assemblies of bags

Definitions

  • the invention relates to a bag chain consisting of a plurality of bags made of a plastic film, the scale-like superimposed on at least two laterally spaced drivable carrying straps are releasably secured, wherein the openings of the bag aligned approximately perpendicular to the straps are.
  • suction cups are to be placed on one or both sides of the bag, by means of which the bag is to be opened so far that grippers can be mechanically inserted into them for further opening.
  • the forces required to open the bag can be extremely high, as air may not flow into the bag fast enough and a vacuum is created which counteracts the opening forces.
  • the vacuum is in this case the higher the faster the bag is opened or the suction pads on one side and the suction pads and / or the straps on the other side are moved apart at an opening speed apart.
  • a quick opening of the bags is desirable in the automated opening process, since a high productivity of the process can be achieved.
  • the bags are torn off either by the straps in this opening phase, especially when no additional suction pads are used on this side of the bag, or else the suction pads lose the bag. In particular, the tearing of the bag often occurs.
  • the indirect reason for this is that the bags have to slide very well against each other in view of the good processability and lubricants are to be used, by which, however, the holding force on the straps is impaired.
  • the good sliding behavior is required if the bottom bag under the bags lying on it must be regularly pulled away when opening the bag without the bag chain or its scaling loses its order state by action, in particular jerky shear forces.
  • this is achieved in the bag chain of the type mentioned above in that the film forming the bag is provided on one or both inner sides of the bag with incorporated in this spacers.
  • the spacers may in this case be formed by an inorganic or organic antiblocking agent, for example synthetic or natural silica, by calcium carbonate or polycarbonate particles.
  • the size of the particles of the spacers should be about 3 to 30 ⁇ m [ ⁇ 10 -6 meters], preferably between 5 to 15 ⁇ m [ ⁇ 10 -6 meters].
  • silica spacers For synthetic silica spacers, it is indicated that their content is about 1,000 to 2,000 ppm, for natural silica spacers about 2,000 to 5,000 ppm, and for calcium carbonate spacers about 1,000 to 4,000 ppm of the receiving film.
  • the portion incorporated in the insides should, in a preferred embodiment, be more than 10% larger than the portion of the spacers incorporated in the outsides.
  • the inner sides and adhering to the straps outer side of the film with different proportions of spacers to provide the outside with a preferably by 10 to 20% larger share.
  • the film for producing the bags can also be extruded in a multi-layered manner, wherein the spacers are to be integrated into the inner layer and / or into the outer layer of the film.
  • the bags should be releasably attached by means of a pressure-sensitive adhesive to the preferably designed as adhesive tapes tapes. Also should the bag chain-forming bag to be wound together with the straps on a roll core.
  • a bag chain according to the invention in which the film from which the bags are made, equipped with integrated spacers and thus with a selectable depending on the purpose of type and concentration antiblocking agents, it is reliably guaranteed that the films are not stick together and the bags are easy to open for filling.
  • the spacers namely ensures that the films do not abut each other, but that between them an air gap is formed, due to which the films are easily solved even at high speeds from each other.
  • the equipment of the inside of the bag with anti-blocking agent also causes the opening of the bag, especially in the initial phase of the opening process, the flow of air when pulling the bag is improved by the fact that by the antiblocking caused surface roughness cannulas and capillaries are available through the flow processes in the bag are very favored. In this way, the resulting negative pressure can be reduced and the force required to open can be reduced. In addition, this improves the reliability of the opening process and the reproducibility and reliability of the automated bag processing, since both the premature tearing off of the straps and the loss is counteracted by suction pads in the first opening phase. Furthermore, the equipment of the bag exterior with anti-blocking agent causes the increased surface roughness increases the effective adhesive surface and the adhesive strength is improved on the straps.
  • the scaling of the bags can be reduced. By resulting in this way savings on straps economic efficiency is increased. Furthermore, improved adhesive strength on the straps facilitates the use of lubricants, so that the required slip properties of the bags against each other can be achieved by a suitable combination of antiblocking agent and lubricant.
  • a bag chain is thus created, the bags of which can be opened without difficulty even at high operating speeds and with low forces, in particular in the first opening phase, without the bags being torn off the carrier tapes or being lost by the suction grippers.
  • the specific adhesive forces on these can be selected to be higher than heretofore, and thus the bags are to be arranged very close to each other, the fastener tapes can be shortened.
  • bag chain consists of a plurality of two parallel to each other extending drivable straps releasably secured bags 3, which are held at a small distance s of, for example, 30 mm next to each other like scales on the straps 2.
  • the openings of the bags 3 are aligned approximately perpendicular to the straps 2, which are wound together with the bags 3 on a roll core 10.
  • the bags 3 are, as the particular FIG. 2 can be seen, designed as a tubular bag and thus made of a closed film, which are welded after severing the extruded tube on a transverse side.
  • the interior 4 of the bag 3 are like this FIG. 3 can be seen on the inner sides 12 and 13 of the film 11 in these spacers 21 and 22 in selectable size and selectable accumulation, however, incorporated according to purpose.
  • the spacers 21 and 22 may also be provided only on the inside 12 or only on the inside 13 of the film 11. In this way it is prevented that the film 11 adheres to each other and is difficult to open in the first opening phase.
  • the spacers 21 and 22 thus cause 4 air channels form in the interior and the film 11 of the bag 3 is spread out with only little force.
  • the bags 3 are by means of a pressure sensitive adhesive 5 at attached to the straps 2.
  • a lubricant 6 are applied on the outer sides 14, 15 and / or the inner sides 12, 13 of the bag 3.
  • spacer 23 may be included in order to increase the adhesion of the bag 3 to the pressure sensitive adhesive 5 and the straps 2 and to adjust.
  • FIG. 7 For example, one of two foils 11 'and 11 ", which are connected to one another in the edge regions by weld seams 16, is shown producing side seaming bags 3' In each of the foils 11 'and 11", an intermediate layer 18 is extruded, so that the individual layers of the The spacers 21 and 22 or 23 are respectively incorporated into the inner and outer layers of the films 11 'and 11 "and thus effective on the surface of the bag 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Claims (12)

  1. Chaîne à sacs (1) comprenant une multitude de sacs (3, 3') réalisés en feuille de matière synthétique (11), se chevauchant à la nature d'écailles et fixés de manière détachable sur au moins deux bandes de support (2) entraînées et écartées latéralement l'une de l'autre, les ouvertures (16) des sacs (3, 3') étant orientées perpendiculairement aux bandes de support (2),
    caractérisée en ce que
    sur une ou sur les deux faces intérieures (12, 13) du sac (3, 3'), la feuille (11, 11', 11") formant les sacs (3, 3') est munie d'éléments d'écartement (21, 22, 23) intégrés dans celle-ci.
  2. Chaîne à sacs d'après la revendication 1,
    caractérisée en ce que
    sur une ou sur les deux faces extérieures (14, 15) du sac (3, 3'), la feuille (11, 11', 11") formant les sacs (3, 3') est munie d'éléments d'écartement (21, 22, 23) intégrés dans celle-ci.
  3. Chaîne à sacs d'après les revendications 1 ou 2,
    caractérisée en ce que
    les éléments d'écartement (21, 22, 23) sont réalisés en produit anti-blocage anorganique ou organique tel que de l'acide silique synthétique ou naturel, du carbonate de calcium ou des particules de polycarbonate.
  4. Chaîne à sacs d'après la revendication 3,
    caractérisée en ce que
    la grandeur des particules des éléments d'écartement (21, 22, 23) s'élève à 3-30 µm [≙ 10-6 m], de préférence entre 5 et 15 µm [≙ 10-6 m].
  5. Chaîne à sacs d'après les revendications 3 ou 4,
    caractérisée en ce que
    dans le cas d'éléments d'écartement (21, 22, 23) en acide silique synthétique, leur part de la feuille (11, 11', 11 ") les recevant est d'env. 1000 à 2000 ppm, tandis qu'en acide silique naturel, leur part est d'env. 2000 à 5000 ppm et qu'en carbonate de calcium, leur part est d'env. 1000 à 4000 ppm.
  6. Chaîne à sacs d'après les revendications 2 à 5,
    caractérisée en ce que
    dans le cas d'équipement des faces intérieures (12, 13) et des faces extérieures (14, 15) des sacs (3, 3') avec des éléments d'écartement (21, 22, 23), la part d'éléments d'écartement (21, 22, 23) intégrée dans les faces intérieures (12, 13) est de plus de 10 % plus grande que la part intégrée dans les faces extérieures (14, 15).
  7. Chaîne à sacs d'après les revendications 2 à 5,
    caractérisée en ce que
    les faces intérieures (12, 13) et la face extérieure (15) de la feuille (11) adhérant aux bandes de support (2) sont équipées de différentes parts d'éléments d'écartement (21, 22, 23), et la face extérieure (15) avec une part plus grande de préférence de 10 à 20 %.
  8. Chaîne à sacs d'après les revendications 1 à 7,
    caractérisée en ce que
    la feuille (11, 11') servant à la réalisation des sacs (3') est extrudée en plusieurs couches et que les éléments d'écartement sont intégrés dans la couche intérieure et, le cas échéant, dans la couche extérieure de la feuille (11, 11').
  9. Chaîne à sacs d'après les revendications 1 à 8,
    caractérisée en ce que
    les faces extérieures (14, 15) et/ou les faces intérieures (12, 13) des sacs (3, 3') sont munies d'un produit lubrifiant (6).
  10. Chaîne à sacs d'après les revendications 1 à 9,
    caractérisée en ce que
    dans le cas de l'arrangement des sacs (3, 3') sur les bandes de support (2), l'écartement (S) entre les ouvertures (16) des sacs individuels (3, 3') s'élève au maximum à 30 mm.
  11. Chaîne à sacs d'après les revendications 1 à 10,
    caractérisée en ce que,
    à l'aide d'une colle autoadhésive (5), les sacs (3, 3') sont fixés de manière détachable sur les bandes de support (2) conçues de préférence en tant que bande adhésives.
  12. Chaîne à sacs d'après les revendications 1 à 11,
    caractérisée en ce que
    les sacs (3) formant la chaîne à sacs (1) sont enroulés ensemble avec les bandes de support (2) sur un rouleau (10).
EP08000766.9A 2008-01-16 2008-01-16 Chaîne de sacs Active EP2080706B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08000766.9A EP2080706B2 (fr) 2008-01-16 2008-01-16 Chaîne de sacs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08000766.9A EP2080706B2 (fr) 2008-01-16 2008-01-16 Chaîne de sacs

Publications (3)

Publication Number Publication Date
EP2080706A1 EP2080706A1 (fr) 2009-07-22
EP2080706B1 EP2080706B1 (fr) 2013-07-24
EP2080706B2 true EP2080706B2 (fr) 2017-05-03

Family

ID=39521894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08000766.9A Active EP2080706B2 (fr) 2008-01-16 2008-01-16 Chaîne de sacs

Country Status (1)

Country Link
EP (1) EP2080706B2 (fr)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428483A (en) † 1965-01-13 1969-02-18 Du Pont Vinylidene chloride copolymer coated polymeric film containing steatite talc in the coating
US3527660A (en) † 1966-09-30 1970-09-08 Bexford Ltd Surface treatment of cellulose acetate film
GB1378235A (en) † 1971-10-22 1974-12-27 Cellophane Sa Anchoring layer on polyester films
US3980611A (en) † 1970-07-07 1976-09-14 E. I. Du Pont De Nemours And Company Filled thermoplastic films
GB1492178A (en) † 1973-10-29 1977-11-16 Monsanto Co Biaxially oriented polymeric sheets
US4107380A (en) † 1976-11-12 1978-08-15 American Can Company Non-blocking coating composition
US4117193A (en) † 1976-07-22 1978-09-26 Honshu Seishi Kabushiki Kaisha Antistatic, low temperature heat sealable polypropylene composite film and process for production thereof
EP0070524A1 (fr) † 1981-07-16 1983-01-26 Nippon Carbide Kogyo Kabushiki Kaisha Structure de feuille autocollante possédant des propriétés amovibles
US4659532A (en) † 1984-08-16 1987-04-21 Wolff Walsrode Ag Internal dusting of film tubes composed of thermoplastics
EP0704319A1 (fr) † 1994-09-28 1996-04-03 Dai Nippon Printing Co., Ltd. Feuille pour le transport thermique
US5674600A (en) † 1995-07-17 1997-10-07 Wolff Walsrode Aktiengesellschaft Laminating film without a release layer, process for the production thereof and use thereof
US5925454A (en) † 1995-07-11 1999-07-20 W.R. Grace & Co.-Conn. Film having modified surface characteristics through use of combination of spherical and lamellar particulates
US6331355B1 (en) † 1997-06-17 2001-12-18 Wolff Walsrode Ag Rollable, single-coated hot melt adhesive film with no interlayer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224574A (en) * 1964-06-10 1965-12-21 Scott Paper Co Embossed plastic bag
US3857144A (en) * 1971-07-02 1974-12-31 Mobil Oil Corp Method of embossing limp plastic sheet material
US4367841A (en) * 1980-11-18 1983-01-11 Mobil Oil Corporation Thermoplastic carrying bag with binary polyolefin resin blend
CA2030868C (fr) * 1989-12-06 1996-07-09 Michael G. Borchardt Surface d'ecriture d'une pellicule et sacs comportant une bande d'ecriture
US5965224A (en) * 1995-11-13 1999-10-12 First Brands Corporation Closure bag with internal tack surfaces
DE29803049U1 (de) 1998-02-21 1998-06-18 Remmele, Johannes, Dipl.-Betriebsw., 88416 Ochsenhausen Schlauchbeutelkette

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428483A (en) † 1965-01-13 1969-02-18 Du Pont Vinylidene chloride copolymer coated polymeric film containing steatite talc in the coating
US3527660A (en) † 1966-09-30 1970-09-08 Bexford Ltd Surface treatment of cellulose acetate film
US3980611A (en) † 1970-07-07 1976-09-14 E. I. Du Pont De Nemours And Company Filled thermoplastic films
GB1378235A (en) † 1971-10-22 1974-12-27 Cellophane Sa Anchoring layer on polyester films
GB1492178A (en) † 1973-10-29 1977-11-16 Monsanto Co Biaxially oriented polymeric sheets
US4117193A (en) † 1976-07-22 1978-09-26 Honshu Seishi Kabushiki Kaisha Antistatic, low temperature heat sealable polypropylene composite film and process for production thereof
US4107380A (en) † 1976-11-12 1978-08-15 American Can Company Non-blocking coating composition
EP0070524A1 (fr) † 1981-07-16 1983-01-26 Nippon Carbide Kogyo Kabushiki Kaisha Structure de feuille autocollante possédant des propriétés amovibles
US4659532A (en) † 1984-08-16 1987-04-21 Wolff Walsrode Ag Internal dusting of film tubes composed of thermoplastics
EP0704319A1 (fr) † 1994-09-28 1996-04-03 Dai Nippon Printing Co., Ltd. Feuille pour le transport thermique
US5925454A (en) † 1995-07-11 1999-07-20 W.R. Grace & Co.-Conn. Film having modified surface characteristics through use of combination of spherical and lamellar particulates
US5674600A (en) † 1995-07-17 1997-10-07 Wolff Walsrode Aktiengesellschaft Laminating film without a release layer, process for the production thereof and use thereof
US6331355B1 (en) † 1997-06-17 2001-12-18 Wolff Walsrode Ag Rollable, single-coated hot melt adhesive film with no interlayer

Also Published As

Publication number Publication date
EP2080706A1 (fr) 2009-07-22
EP2080706B1 (fr) 2013-07-24

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