• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Bag for transporting and / or preserving products such as fruits and / or fresh vegetables, at ambient temperature or at refrigeration temperature, constituted from a plastic film, comprising a perforated lower part (8) for receiving the products, and an upper portion (9) not perforated for closure and / or seizure of the bag for transporting the products.
    公开号:BE1026048B1
    申请号:E2019/0017
    申请日:2019-02-27
    公开日:2019-10-03
    发明作者:John Persenda
    申请人:SPHERE Société anonyme；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    The invention relates to a bag for fruit and vegetables and more particularly a bag for transporting fruit and vegetables, in particular salads, and for storing them at room temperature or at refrigeration temperature. It also relates to the method of manufacturing the bag.
    PRIOR ART
    It is known to produce, for the transport of fruit and vegetables, plastic bags which are compostable.
    An object of the invention is to provide a bag for transporting fruits and vegetables which provides them with very favorable conditions of storage.
    SUMMARY OF THE INVENTION
    The subject of the invention is a bag for transporting and / or preserving products such as fresh fruits and / or vegetables, at room temperature or at refrigeration temperature, made from a plastic film, comprising a part lower perforated for receiving products, and a non-perforated upper part for closing and / or gripping the bag for transporting products, characterized in that the plastic film is produced with bio-based products.
    According to one embodiment, the proportion of bio-based products is at least equal to 30%.
    BE2019 / 0017
    According to one embodiment, the bio-based products are chosen in part from corn starch, cereal starch, potato starch, polylactic acid.
    According to one embodiment, the plastic film is produced mainly from products that can be composted industrially or at home.
    According to one embodiment, the plastic film is compostable industrially or at home.
    The invention also relates to a process for manufacturing bags for the transport and / or conservation of fresh products characterized by the steps of:
    a) producing a base mixture capable of constituting a plastic film,
    b) extruding the base mixture in the form of a plastic film,
    c) fold the film longitudinally to form a strip of at least two thicknesses,
    d) subjecting the strip to perforations on segments of its length, separated by non-perforated segments,
    e) apply to the strip, at regular intervals, transverse welds and pre-cut lines for separation into bags.
    According to one embodiment, the order of steps c) and d) is reversed.
    According to one embodiment, in step b), the base mixture is extruded in the form of a tubular plastic film.
    According to one embodiment, the perforations are produced by passing the strip between a smooth roller and a roller carrying a perforated metal plate.
    According to one embodiment, the metal plate is perforated by means of a laser beam, each perforation being surrounded by a raised border.
    BE2019 / 0017
    According to one embodiment, the metal plate partially surrounds the roller and a circular sector of the roller, free of plate, corresponds to the non-perforated segments of the strip.
    According to one embodiment, the metal plate is applied to the roller by its smooth face, the raised edges of its perforations being on its outer face.
    According to one embodiment, the film is folded longitudinally to form a strip of constant thickness over its entire width.
    According to one embodiment, the film is folded longitudinally with lateral bellows in order, after cutting, to form bags with gripping handles.
    DESCRIPTION OF THE FIGURES
    Figure 1 is a simplified sectional view of the device for preparing bags for fruit and vegetables.
    FIG. 2 is a partial view of the perforated plate used by the preparation device of FIG. 1.
    Figure 3 is a schematic sectional view of a bag being folded.
    Figure 4 is a schematic sectional view of a bag folded into one of the possible shapes, before it passes through the preparation device of Figure 1.
    FIG. 5 is a flat view of a portion of an exemplary embodiment of a strip of bags before winding prior to commercialization.
    BE2019 / 0017
    DETAILED DESCRIPTION
    The transport and storage bag for fruit and vegetables according to the invention is produced from a basic mixture comprising products that can be composted industrially or at home. This base mixture is extruded in the form of a film.
    The bag is produced from a starting product which is a plastic film, for example tubular, of a thickness typically between 5 and 30 micrometers, for example 10 μm. This film can be a monolayer mono-extruded film or a film with at least 2 layers, co-extruded. According to a first embodiment, the film tube is then shaped by folding inward the bellows (Figure 3) which can be practically juxtaposed in the middle of the tube.
    The flattened tube with the bellows inside is then folded in 2 (Figure 4) to form an assembly of practically constant thickness over its entire width, the thickness of the assembly being equal to 8 times the thickness of the film. .
    This assembly, in the form of a continuous strip 6 is then subjected to perforations in a roller preparation device (FIG. 1).
    According to an exemplary embodiment, the preparation device 1 comprises a smooth roller 2, a magnetic roller 3 and a flexible metal plate 4, provided with perforations 5 (FIG. 2).
    On the plate 4, the perforations 5 are produced regularly, on lines spaced for example from 3 to 20 mm and on each line with regular intervals of 3 to 20 mm, for example.
    The perforations 5 are produced for example by means of a laser beam. It is essential that the perforation orifice is surrounded by a raised border which will be used to ensure the perforation of the continuous strip 6.
    BE2019 / 0017
    According to an exemplary embodiment, the plate 4 is a flexible plate, applied to the magnetic roller 3 which retains it without fixing accessory.
    The plate 4 is applied to the magnetic roller 3 by its smooth face, and the raised edges of its perforations are on its outer face.
    According to another embodiment, the roller is not magnetic and the plate is fixed to it by any means.
    In the preparation device 1, the roller 3 carrying the plate 4 and the smooth roller 2 rotate in mutual support. The continuous strip 6 runs between the two rollers 2 and 3 and it is perforated, due to the mutual support of the rollers 2 and 3, at the perforations of the plate 4.
    The basic mixture comprising products that can be composted industrially or at home, the production of perforations on the continuous strip is delicate.
    According to an advantageous arrangement of the invention, the plate 4 partially surrounds the roller 3, and a circular sector 7, in FIG. 1, is free from plate 4. Thus, on the continuous strip 6, the perforated segments 8 corresponding to the length of the plate 4 are separated by non-perforated segments 9 corresponding to the circular sector 7. Between each non-perforated segment 9 and the next perforated segment 8, a precut line 10 and a weld are arranged
    11. The continuous strip 6 is then wound on itself and packaged for distribution in the commercial circuit.
    According to another embodiment, the film is folded longitudinally to form a strip not characterized by a constant thickness over its entire width. The bellows are not folded up to the middle of the strip, they are welded to form
    BE2019 / 0017 handles for gripping the bag, and between the handles, a wide cutout is provided.
    In terms of use, the cutting of the continuous strip 6 along a precut line 10 makes it possible to isolate a folded bag.
    Once this bag is shaped, it has a lower part corresponding to the perforated segment 8 to receive fruit and vegetables, and an upper part corresponding to the non-perforated segment 9 to serve as a carrying handle and / or closure. The perforated lower part provides air permeability for better preservation of the fruits and vegetables in the bag. Fruit and vegetables are stored in the bag both at room temperature and at refrigeration temperature. The bag is particularly well suited to the case of large-leaf products such as salads.
    According to a particular embodiment, the method of manufacturing the bags comprises the steps of:
    - make a base mixture capable of constituting a plastic film,
    - Extrude the base mixture in the form of a plastic film, for example tubular with a thickness typically between 5 and 30 μm,
    - fold the film longitudinally to form a strip,
    - subject the strip to perforations on segments of its length, separated by non-perforated segments,
    - apply to the strip, at regular intervals, transverse welds and pre-cut lines for separation into bags, and possibly cuts to make bags with gripping handles.
    According to a particular embodiment, the base mixture is mainly composed of products that can be composted industrially or at home, and more particularly products
    BE2019 / 0017 bio-based sources such as corn starch, cereal starch, potato starch, or polylactic acid.
    权利要求:
    Claims (14)
    [1]
    1. Bag for transporting and / or preserving products such as fresh fruit and / or vegetables, at room temperature or at refrigeration temperature, made from a plastic film, comprising a perforated lower part for reception products, and a non-perforated upper part for closing and / or gripping the bag for transporting products, characterized in that the plastic film is produced with bio-based products.
    [2]
    2. Bag according to claim 1 characterized in that the proportion of bio-based products is at least equal to 30%.
    [3]
    3. Bag according to claim 2 characterized in that the bio-based products are chosen in part from corn starch, cereal starch, potato starch, polylactic acid.
    [4]
    4. Bag according to claim 1 characterized in that the plastic film is produced mainly from industrially compostable products or at home.
    [5]
    5. Bag according to claim 1 characterized in that the plastic film is industrially compostable or at home.
    [6]
    6. Method of manufacturing bags according to one of claims 1 to 5 characterized by the steps of:
    a) producing a base mixture capable of constituting a plastic film,
    b) extruding the base mixture in the form of a plastic film,
    c) fold the film longitudinally to form a strip (6) of at least two thicknesses,
    d) subjecting the strip (6) to perforations on segments (8) of its length, separated by non-perforated segments (9),
    e) applying to the strip (6), at regular intervals, transverse welds (11) and pre-cut lines (10) for separation into bags.
    BE2019 / 0017
    [7]
    7. Method according to claim 6 characterized in that the order of steps c) and d) is reversed.
    [8]
    8. Method according to claim 6 or 7 characterized in that in step b), the base mixture is extruded in the form of a tubular plastic film.
    [9]
    9. Method according to one of claims 6 to 8 characterized in that the perforations are made by passing the strip (6) between a roller (2) smooth and a roller (3) carrying a perforated metal plate (4).
    [10]
    10. Method according to claim 9 characterized in that the metal plate (4) is perforated by means of a laser beam, each perforation (5) being surrounded by a raised border.
    [11]
    11. Method according to claim 10 characterized in that the perforated metal plate (4) partially surrounds the roller (3) and a circular sector (7) of the roller, free of plate, corresponds to the non-perforated segments (9) of the strip (6).
    [12]
    12. Method according to claim 10 characterized in that the metal plate (4) is applied to the roller (3) by its smooth face, the raised edges of its perforations (5) being on its outer face.
    [13]
    13. The method of claim 6 characterized in that the film is folded longitudinally to form a strip of constant thickness over its entire length.
    [14]
    14. Method according to claim 6 characterized in that the film is folded longitudinally with lateral bellows in view, after cutting, to form bags with gripping handles.
    类似技术:
    公开号 | 公开日 | 专利标题
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    CH631669A5|1982-08-31|PLASTICIZED CARTON CONTAINER FOR FOOD PRODUCTS, METHOD AND APPARATUS FOR MANUFACTURING THE SAME.
    FR2888523A1|2007-01-19|Food product e.g. melted cheese, packaging package making element, has sheet with tears guiding strips comprising respective ends heat-sealed on sheet for forming single pull tab spaced laterally from median axis
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    EP1056645B1|2002-06-12|Method and installation for making packages in particular for displaying and preserving food products
    FR2628719A2|1989-09-22|Weld reinforcing system for wrapping material
    FR2688474A1|1993-09-17|PROCESS FOR OBTAINING A COMPOSITE MATERIAL, IN PARTICULAR FOR THE MANUFACTURE OF PACKAGING CONTAINERS FOR FOODSTUFFS SUITABLE FOR EXUDATION, AND CONTAINERS THUS OBTAINED.
    JP3464179B2|2003-11-05|Breathable packaging bag for storing fresh fruits and vegetables
    FR2529529A1|1984-01-06|Plastics bag esp. for sale of fruit
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    EP2002738B1|2011-02-23|Method for packaging sheet| formed in a material including tobacco and packaging thus produced
    FR2555016A1|1985-05-24|Producing horticultural grooving trough
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    JP2964329B2|1999-10-18|Breathable packaging bag and manufacturing method thereof
    BE862069A|1978-04-14|PLASTIC STORAGE BAG WITH REINFORCED HANDLE AND PROCESS FOR ITS MANUFACTURING
    ES1239397U|2020-01-14|Bag for fruits and vegetables |
    同族专利:
    公开号 | 公开日
    FR3078321B1|2021-04-09|
    GB201902587D0|2019-04-10|
    FR3078321A1|2019-08-30|
    GB2573603A|2019-11-13|
    GB2573603B|2020-07-29|
    BE1026048A1|2019-09-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH05254604A|1991-03-19|1993-10-05|Kubo Ceramic Kk|Draining bag and manufacture thereof|
    JP3485426B2|1996-11-29|2004-01-13|ユニ・チャーム株式会社|Biodegradable drain bag|
    IT236054Y1|1997-05-16|2000-07-26|I Di Di Farina & C S N C|BLOCK OR SHAPED BAGS, IN GENERAL FOR BREAD AND SIMILAR.|
    US6286681B1|2000-04-27|2001-09-11|Sonoco Development, Inc.|Ventilated plastic bag|
    JP2002211640A|2001-01-15|2002-07-31|Tokai Kasei Corp|Wrapping label|
    JP2003134904A|2001-11-01|2003-05-13|Daito M Ii Kk|Biodegradable packaging bag for bulb|
    WO2009031992A1|2007-09-04|2009-03-12|Elizabeth Varriano-Marston|Method for controlling banana quality by packaging|
    JP5889854B2|2012-12-28|2016-03-22|住友ベークライト株式会社|Fruit and vegetable freshness-maintaining packaging bag, package containing fruits and vegetables using the same, and method for maintaining freshness of fruits and vegetables|
    JP6439275B2|2014-05-26|2018-12-19|住友ベークライト株式会社|Fruit and vegetable freshness-maintaining packaging bag, package containing fruits and vegetables using the same, and method for maintaining freshness of fruits and vegetables|
    法律状态:
    2019-11-04| FG| Patent granted|Effective date: 20191003 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1851709A|FR3078321B1|2018-02-27|2018-02-27|FRUIT AND VEGETABLE BAG|
    FR1851709|2018-02-27|
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