EP2644526A1 - Sac adaptée pour un four à micro-ondes, notamment pour la réception d'aliments - Google Patents

Sac adaptée pour un four à micro-ondes, notamment pour la réception d'aliments Download PDF

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Publication number
EP2644526A1
EP2644526A1 EP12002259.5A EP12002259A EP2644526A1 EP 2644526 A1 EP2644526 A1 EP 2644526A1 EP 12002259 A EP12002259 A EP 12002259A EP 2644526 A1 EP2644526 A1 EP 2644526A1
Authority
EP
European Patent Office
Prior art keywords
bag
opening
receiving space
susceptor
tabs
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Withdrawn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
EP12002259.5A
Other languages
German (de)
English (en)
Inventor
Michael Washüttl
Michael Krainz
Bernhard Fink
Ludger Fuest
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP12002259.5A priority Critical patent/EP2644526A1/fr
Publication of EP2644526A1 publication Critical patent/EP2644526A1/fr
Withdrawn legal-status Critical Current

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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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3461—Flexible containers, e.g. bags, pouches, envelopes
    • 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
    • B65D33/01—Ventilation or drainage of bags
    • 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
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • 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
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
    • 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
    • B65D2205/00—Venting means
    • 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
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3439—Means for affecting the heating or cooking properties
    • B65D2581/3444—Packages having devices which convert microwave energy into movement
    • 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
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3439—Means for affecting the heating or cooking properties
    • B65D2581/3445—Microwave reactive adhesives, e.g. also used in valves or lids
    • 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
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3463—Means for applying microwave reactive material to the package
    • B65D2581/3464—Microwave reactive material applied by ink printing

Definitions

  • the present invention relates to a bag having a receiving space, an opening device and at least one opening tab.
  • the opening tab is assigned to the opening device. In a first position, the opening device closes the receiving space and in a second position, it releases it.
  • a bag is usually characterized by a bag material, which surrounds the receiving space such that a recorded within the receiving space object or substance is prevented from falling out.
  • the present invention has a bag for packaging, transport, storage or preparation of food, for example, so-called Convenient Food products, such as prepared ready-to-eat pasta dishes, fried chicken parts or desserts in mind.
  • pouches are known on the market in which the food is both sold and taken out without being taken out, in particular it is heated.
  • the consumer heats the food together with the bag in a microwave oven.
  • the food is heated by Mikrowellenbeaufschlagung.
  • the food is usually heated sufficiently only inside it, while its surface remains relatively cold. Due to microwave heating, which is different from conventional cooking or frying, the cooking result is different from that achieved by the conventional methods.
  • cartons are known, for example, in the art, in the receiving space, a susceptor which heats up when the microwave is applied is applied. Upon microwave exposure, this susceptor heats up in such a way that a surface roasting of the foodstuff prepared in the folding box, comparable to a toaster, is achieved.
  • opening tabs provided for easily opening the bag are regularly applied directly to the hot bag surface. Accordingly, the opening tabs must first be carefully opened or exposed for opening at the same time as there is a risk of burns and / or unpleasant heat. Thereafter, it is only possible to pull on the opening tabs in order to open the bag and remove the cooked food.
  • the bag known from the prior art therefore has the problem that it is inadequately tuned to the particular food, mostly for cost reasons, and that the handling of the bag by the consumer to remove the cooked food is difficult.
  • the bag should be as inexpensive to manufacture and yet, in order to meet the needs of consumption, must have the highest possible functionality.
  • the object of the present invention is therefore to meet the ever increasing consumer interests while maintaining high competitive pressure.
  • the present invention provides a bag having the features of claim 1.
  • the bag according to the invention differs from the prior art in that it is associated with a deformation means which deforms the bag due to microwave exposure at least in a section such that the opening tab is moved from a starting position to an opening-facilitating position.
  • bag sections are all parts or regions of parts belonging to the bag as such.
  • Such a bag is usually made of a bag material which surrounds the receiving space.
  • the bag material is usually a flat material, which may be constructed from one or more layers or may have a holey network structure. In any case, it limits the receiving space such that, in particular, a food taken in it is prevented from falling out and / or running out.
  • the receiving space is adapted to the size of a stored in this object, in particular food, thus has essentially its dimensions.
  • the bag according to the invention expediently has a size such that it fits into a commercially available microwave oven.
  • the opening device makes it possible for the object, in particular the food, to usually reach into the receiving space or, in any case, to be removed from the receiving space. It is not necessarily the case that the opening device is formed from the outset on the bag visible, but rather it is preferred that the bag material, for example, has a so-called predetermined breaking point as opening means at which this can be torn open by actuation of the opening tab that an opening for the removal of the food is released. In the second position, the opening device thus releases an opening which is dimensioned such that the article, in particular the food can be retrieved from the bag at least after cooking.
  • the present invention has the common types of bags known in the art, such as four-edge, three-edge, two-side seal bags, stand-up pouches, and tubular pouches and block bottom pouches.
  • the present invention can be based on the idea that at least one opening tab is formed on the bag, which allows the consumer or a person to essentially spend by pulling on the opening means in the second position or to release an opening.
  • the consumer or the person expediently grasps the opening tab and actuates it to open the bag so that it can remove the food from the receiving space.
  • the opening tab must be associated with the opening means such that actuation of the opening tab results in an opening of the bag, i. the opening device is transferred from a first to a second position.
  • Such an opening tab is preferably formed from a sheet material in particular integrally with the bag material or as an additional element.
  • the present invention is based on the assumption that, in a starting state which is not microwaved, this opening tab abuts substantially flat against a bag surface or outer surface of the bag material or a wall of the bag surrounding the receiving space and thus does not protrude from the bag.
  • the opening tab may, for example, be a so-called "sticker” made of a flat material which is fastened, in particular glued, to the bag material with a marginal end.
  • the opening tab preferably extends in its initial position before microwave exposure of the bag or of the food contained in the receiving space of the bag has taken place substantially parallel to the bag surface or the outer surface of the bag material or the wall of the bag surrounding the receiving space.
  • Such short tabs which are formed on the bag, for example due to the production process of the bag as residues protruding bag material and can not be touched by a consumer so, that it is possible for him to pull on this to open the bag are not opening tabs in the context of the present invention.
  • the present invention is preferably realized as a bag for cooking the food in the microwave oven. In the course of cooking the food, a deformation of the bag or the portion of the bag occurs due to microwave exposure.
  • This deformation of the bag or of the portion of the bag is the cause of a "putting up" of the hitherto on the bag surface or the outer surface of the bag material or surrounding the receiving space wall of the bag opening tab.
  • the bag preferably deforms such that after opening the opening tab extends in such a direction as to make it easier for the consumer to grip them to actuate them to open the bag.
  • the opening tab it is preferable for the opening tab to protrude substantially vertically from a wall of the bag which surrounds the receiving space after microwave exposure of the bag and the resulting deformation. After deformation of the bag, the opening tabs therefore protrude from the bag surface or the outer surface of the bag material in the opening relief position.
  • Such a deforming means usually has the function of directly or indirectly deforming the bag, at least in the section of the bag, as a result of a microwave application, such that the opening tab is exposed or exposed.
  • the present invention has two different deformation means in mind.
  • the cooking atmosphere which arises after microwave exposure of the foodstuff stored in the receiving space may serve as a deforming agent.
  • the bag is closed so that the resulting Gardämpfe can not escape. This creates an overpressure within the receiving space, which causes a deformation of the bag. Due to this deformation, the opening tab is moved from the starting position to the opening-facilitating position.
  • the present invention has an additional element, such as a microwave sensitive susceptor described in the preferred embodiments in mind, which actively acts on the bag material due to microwave exposure, so that this is deformed at least in sections and sets up the opening tab.
  • the susceptor is therefore preferably provided directly on the bag material or as part of the bag material and causes the setting of the opening tab preferably directly, because it deforms itself due to Mikrowellenbeetzschung, but at least indirectly, by acting on the bag material, so that this deformed.
  • the opening tab is dimensioned such that it can be grasped between the fingers of a user or consumer.
  • the opening tabs on bags in the prior art are designed to be very short, so that the consumer gets hot fingers despite the opening tabs due to a deformation of the bag after Mikrowellenbeetzschung, or burns on the fingers.
  • the enlarged dimensioning of the opening tab preferably relates to its transverse extent, that is to say the extension in the direction of which the opening tab projects from the bag. It is preferable to form the opening tab as an elongate member projecting from the bag.
  • the opening tab has a transverse extent of more than two centimeters, because only then the heat is not transferred to such an extent to the end of the opening tab by the thermal conductivity of the bag material, that this still leads to a risk of unpleasant heating of the extremities of the Consumer leads. It is particularly preferred to choose a transverse extension of more than three centimeters.
  • the bag should contain at least one pair of opening tabs, which face each other. Opposite the opening tab pair is hereafter understood in particular as that, when the consumer pulls on both opening tabs simultaneously in substantially the opposite direction, this force acting in opposite directions on the pair of opening tabs results in the opening of the bag.
  • the pair of opening tabs preferably lie directly spaced from each other across the opening.
  • tab ends of each opening tab of the pair abut such on the wall of the bag surrounding the receiving space that the opening tabs in each case in the opposite direction to the bag or the wall of the bag surrounding the receiving space cling.
  • at least two opening tabs are provided, these are arranged one above the other in the starting position and fold up as a result of the microwave application.
  • each opening tab in the opening-facilitating position does not extend perpendicular to the bag surface of the bag or wall of the bag surrounding the receiving space, but protrudes at an oblique angle of the receiving space surrounding the wall of the bag.
  • the two opening tabs of the pair preferably have between them an angle of at least 10 °, more preferably at least 20 °, most preferably at least 45 °.
  • the angle which each opening tab encloses with the bag surface or outer surface of the bag or the wall of the bag surrounding the receiving space should be at least 20 °, particularly preferably 45 °, very particularly preferably 90 °.
  • both tabs project in the opening relief position at the same angle from the bag or the wall of the bag surrounding the receiving space. Because usually the bag surface is not flat, the angle between the opening tab and the bag surface is the angle at the base of the opening tab between the opening tab and the tangent at the bottom of the bag surface.
  • the consumer no longer cumbersome with one hand hold the bag and pull the second hand on an opening tab, but can pull with both hands on each opening tab of the pair to open the bag.
  • the bag is e.g. is on a table, it requires no additional support of the bag, but this is securely held in position, while the consumer only touches on both opening tabs.
  • the bag is designed as a tubular bag.
  • a tubular bag usually contains a longitudinal weld seam in the longitudinal direction and transverse welds extending substantially at right angles thereto.
  • a corresponding tubular bag is usually produced in such a way that initially a flat web of a film is formed over a forming shoulder and formed by the longitudinal welding seam to form a hose which extends in the feed direction of the hose.
  • Bulk material is usually filled in an underside already closed length of the hose and then closed on the upper side by a transverse weld.
  • the opening device is also associated with a susceptor such that the opening device is opened and / or weakened by exposure to microwaves, so that handling of the opening tabs leads to easy removal of the material contained in the bag and, in particular, the receiving space is easily opened by actuating the opening tabs can.
  • the susceptor in the region of the opening device, preferably a weld seam of the bag material surrounding the receiving space, that the heating of the susceptor as a result of the microwave application weakening or substantially destroying bonding of bag material to a seam or weld seam.
  • the bag material peelable in the region of a seam, ie to facilitate the opening in the region of the seam with respect to a non-peelable bag material.
  • the bag material can be equipped with peel as a whole, so that all seams are weakened due to the peel and thus the operation of the opening tabs leads to an easier opening of the receiving space.
  • the peel may also be provided only at the one or more locations where a seal of several layers of bag material for removal should be weakened by good from the bag.
  • predetermined areas of the bag material surrounding the receiving space may be so weakened that an actuation of the opening tab may cause easy opening of the receiving space at or causes the predetermined locations.
  • the longitudinal weld also serves as opening means of the bag.
  • the longitudinal weld is therefore a kind of predetermined breaking point along which the bag is torn after cooking the food contained in the receiving space.
  • a respective opening flap is preferably formed in the longitudinal direction of the latter and thus forms a pair of opening tabs. It is very particularly preferred in this case that the opening tabs are formed directly during the manufacture of the tubular bag on this. For this purpose, during the production of the tubular bag, the film is pulled over the forming shoulder in such a way that foil end sections lying opposite the longitudinal welding seam remain standing. These Folienendabitese therefore form the opening tabs.
  • the bag should contain the susceptor associated with the deformation means.
  • susceptor any material can be used which, after exposure to microwave radiation of any kind of reaction thereto.
  • the material deforms solely due to the irradiation of microwave radiation.
  • the present invention in particular such susceptors in view, as for example from the EP 1 970 310 B1 are known, the disclosure of which is included with this reference.
  • This reference applies in particular to the susceptor disclosed therein, as well as to the multilayer film disclosed therein, which can preferably form the bag material of the present invention.
  • the bag material usually consists of at least two different layers. When using a susceptor, this can on the inside of the bag recorded Good facing inner Surface of the bag material are located. In the case of three- or multi-layered films, the susceptor may also be in the middle layer.
  • the susceptor according to the invention may be a homogeneous material or a composite of materials which is produced from a component or a component mixture. Both single-layer susceptors and multilayer susceptors with a plurality of layers extending over or next to one another are conceivable. Accordingly, the present invention has such susceptors in mind, which heat when irradiated by microwave radiation (Mikrowellenbeaufschlagung). Usually, for example, such susceptors contain a metallic material. By Mikrowellenbeaufschlagung be generated in this ring currents, which are responsible for the heat of the susceptor.
  • the susceptor is characterized by one or more films of a polymer, or is applied to these.
  • These films contain, in particular, polybutylene terephthalate, polyethylene terephthalate, polypropylene, styrene-butadiene copolymers, polyvinyl chloride, polystyrene or polycaprolactones, alone or in any mixing ratios.
  • These polymers are not biodegradable or biocompatible.
  • biocompatible or biodegradable polymers examples of these are: cellophane, biomaterials from renewable raw materials, starch-based underlays, polyhydroxobutyrate, polylactidacide.
  • the films are composed of oriented polymers, which allow shrinkage of the film and thus in particular of the susceptor when heat is applied.
  • paper can also be used as an additional film layer or as a carrier material in combination with the non-biocompatible as well as the biocompatible polymer films described above.
  • the present invention proposes in particular the following three developments:
  • the susceptor is preferably formed as a microwave heating material which is loosely provided within the receiving space. For example, this can surround as ring cuff the food stored inside the receiving space.
  • a material which deforms upon heat application in particular a heat-shrinkable material, for example an oriented polymer film.
  • the entire bag can also be produced from the material which deforms on heat application, in particular shrinking material.
  • heat-strain deforming material in particular, a heat-shrinkable material is, for example, a polymeric material having a frozen molecular orientation.
  • the deforming means is the susceptor in combination with the shrink film or the heat-strain deforming material.
  • the susceptor is preferably attached to the bag material or connected directly thereto. Accordingly, in the vicinity of the attached susceptor, as described above, a material which deforms on heat application, in particular a shrinking material, is preferably provided.
  • the opening tab is moved after applying the susceptor with microwave radiation analogously thereto, as described above, from the initial position in which the opening tab abuts against the bag material, in its opening-facilitating position.
  • the invention also proposes the alternative embodiment of the susceptor, according to which this deforms itself due to microwave exposure.
  • the susceptor itself is the deforming means, whereas in the other two cases mentioned above, the susceptor is only a part of the deforming means.
  • an establishment of the opening tab during the cooking process of a food located in the receiving space is to be achieved.
  • the susceptor is particularly advantageous to apply the susceptor to an inner wall of the bag material in such a way that the susceptor not only causes the opening tab to be set up in the course of cooking, but also contributes to browning or to an improved superficial roasting of the food.
  • the special feature of this embodiment is that the susceptor simultaneously improves both the tanning result of the food in the course of cooking and the opening tab.
  • the receiving space is sealed sealed.
  • the bag acts primarily as a kind of pressure cooker. Accordingly, the bag must be sealed substantially vapor-tight, in order to be able to withstand a certain vapor pressure generated by the cooking atmosphere arising in the course of cooking in the receiving space.
  • the bag must have such a stability that it usually does not burst when cooking the food in the microwave oven.
  • the bag contains an activatable ventilation device, which hermetically seals the receiving space in a first position and releases a ventilation opening after activation.
  • an activatable ventilation device which hermetically seals the receiving space in a first position and releases a ventilation opening after activation.
  • An advantage of this development of the invention is to match the bag to the dietary needs of a specific food. If, for example, a given vapor pressure at which the ventilation openings have not yet been activated has not yet been reached, the conditions prevailing in the bag are typical of steam cooking. However, if the specified vapor pressure is exceeded, the vents are released. As a result, for example, a particularly good cooking result can be achieved in the following way:
  • the susceptor which heats up under microwave loading, is arranged inside the receiving space, after the food has been steam-cooked in a first step before activation of the ventilation openings, after activation of the ventilating device, a roasting process of the food occurs.
  • the bag is provided on its inner side facing the receiving space in predetermined regions with the susceptor which heats upon microwave application and the material which deforms upon heat application.
  • the arrangement of these materials is chosen such that one of these elements of the susceptor and the material which deforms on application of heat is arranged such that this element is responsible both for the position of the opening tab, the activation or position of the ventilation openings, and the tanning of the Food after previous steam cooking is responsible.
  • the susceptor is mounted within the receiving space such that it forms a superficially coated food intake zone.
  • the food intake zone is a region within the receiving space in which the food stored in the receiving space is usually taken up and at which the food regularly rests directly.
  • This susceptor is usually particularly preferably provided where superficial browning of the food is necessary.
  • the susceptor is preferably not superficially applied in the entire food intake zone, but only in the area (an upper side of the bag) in which the food contained in the receiving space does not usually rest during the cooking process.
  • the opening device should be integrally formed as part of the bag material.
  • the opening device integrally by so-called predetermined breaking points, z. B. by a perforation or a thinner material along a predetermined line of the bag to form.
  • the opening device is not a separate element, such.
  • the opening tab in particular the pair of opening tabs z. B. directly adjacent to a perforation line or a predetermined line at which the bag material is thinner, may be provided. If the consumer pulls on this opening tab or the pair of opening tabs, the bag is therefore torn open in a predetermined manner.
  • an adsorption device is intended to be exposed within the receiving space.
  • This adsorption device is in particular an element which can adsorb the cooking steam or a liquid emerging therefrom during the preparation of the foodstuff in the microwave oven.
  • such an adsorption device may be a flow material, which is inserted into the bag.
  • the adsorbent material provide between two layers of the bag material, wherein an inner layer of the bag material is perforated such that from the receiving space of the Gardampf or the liquid can pass through the perforation to the adsorption.
  • such an adsorption device can be provided as an intermediate layer between two bag material layers in a region where the food is usually stored inside the bag.
  • the bag according to the invention is not limited.
  • FIG. 1 a is referred to in a schematic cross-sectional view with reference numeral 1 a bag.
  • a bag material 2 of the bag 1 surrounds a receiving space 4, in which a food can be received.
  • the bag material 2 is formed from a sheet-like material portion, which with two of its opposite end portions 6, 6 '(see. FIG. 1 b) is welded together such that each of the end portions 6, 6 'respectively forms an opening tab 8, 8'.
  • the opening tab pair 8, 8 ' is therefore spaced over a longitudinal weld 10, which serves as a predetermined breaking point for tearing the bag 1. Accordingly, the longitudinal weld is formed as an opening device 10.
  • the longitudinal weld seam 10 extends in a longitudinal direction of the bag 1 extending transversely to the plane of the drawing.
  • the first embodiment shown is therefore a tubular bag 1.
  • the opening device 10 is associated with a pair of longitudinally extending opening tabs 8, 8 '. These opening tabs 8, 8 'are welded flat to each other on a side facing the receiving space 4 in a narrow welding area 12.
  • FIG. 1 a shows the opening tabs 8, 8 'in their initial position A. In the starting position A, both opening tabs 8, 8' lie substantially against the bag material 2 or the wall of the bag 1 surrounding the receiving space 4 and against one another. In any case, it is difficult for a consumer to grasp these two opening tabs 8, 8 'towards the opening of the bag 1 after preparing the food in the microwave oven.
  • Each of the two opening tabs 8, 8 ' is in each case already provided with a fold 14, 14' in an area between the welding area 12 and the freestanding opening tabs (cf. FIG. 1b or 1c).
  • the opening tabs 8, 8 'fold along the folds 14, 14' serving as hinges from their initial position A in their opening-facilitating position B.
  • the opening relief position B of the opening tabs 8, 8 ' is z. In FIG. 1b respectively.
  • the susceptor 16 is made of a microwave-heating material combined with a heat-strain-deforming material (a layer material of a microwave heating material layer and a heat-strain-deforming layer material).
  • a heat-strain-deforming material a layer material of a microwave heating material layer and a heat-strain-deforming layer material.
  • the susceptor 16 thus serves as a deformation means, which deforms the bag 1, in this case the folds 14, 14 '.
  • both opening tabs 8, 8 ' lie one above the other and protrude in the same direction along the bag material 2.
  • FIG. 1b and Figure 1c is each another state of the opening-relief position B after microwave exposure of the bag 1 or after the food contained in the receiving space 4 has been cooked by microwave application in the microwave oven shown.
  • the respective opening tabs 8, 8 ' have moved from their starting position A into their opening-facilitating position B.
  • the welding region 12 which runs essentially parallel to the bag material 2 or the wall of the bag 1 surrounding the receiving space 4 in the starting position A, has been positioned at an angle thereto.
  • the installation angle in FIG. 1b is about 30 °
  • the installation angle in Figure 1c is about 45 °.
  • opening tab ends 18, 18 'of the respective opening tabs 8, 8' have moved away from each other and pivoted along the folds 14, 14 ', that an opening of the bag 1 is simplified for a consumer. Accordingly, the consumer can grip the opening tab 8 or the opening tab 8 'with the fingers of one hand each time and pull apart the two opening tabs 8, 8' along the welding area 12. In this case, tensile forces acting in opposite directions on the respective opening tab 8, 8 'of the opening of the bag 1 along the opening device or longitudinal weld seam 10 open the bag 1.
  • the bag in the in FIGS. 1a to 1c Accordingly, the embodiment shown is therefore not reusable and designed as a disposable bag.
  • FIG. 2a and 2 B a second embodiment of a tubular bag 1 is shown.
  • FIG. 2a shows the bag 1 in its original form before heating in a microwave oven or before heating the food contained in its receiving space 4 in a microwave oven.
  • FIG. 2b shows the bag 1 after exposure to microwaves or after cooking of the food contained in the receiving space 4.
  • the bag 1 of this embodiment is provided with the longitudinal weld 10, which serves as a predetermined breaking point and therefore as opening means 10 for removing the food after cooking thereof in the microwave oven.
  • the entire bag 1 is deformed due to a resulting during cooking of the food contained in the receiving space 4 after Mikrowellenbeetzung vapor pressure of a cooking atmosphere such that the two opening tabs 8, 8 'from the starting position A (see. FIG. 2a ) in its opening relief position B (see. FIG. 2b ) move.
  • the angle between each opening tab 8, 8 'and the bag material 2 or the wall of the bag 1 surrounding the receiving space 4 is approximately 45 °.
  • the angle which the two opening tabs 8, 8 'enclose with each other is approximately 90 °.
  • the consumer To open the bag 1 after the food has been cooked, the consumer must in each case pull one of the two opening tabs 8, 8 'with one hand in the opposite direction, and the bag 1 tears along the opening device 10 or the longitudinal seam 10.
  • the foodstuff is usually introduced into such a pouch 1 formed as a tubular bag directly in the factory and sealed here along the longitudinal weld seam and the transverse weld seam 20, 20 '.
  • Figure 2c shows a third embodiment of a designed as a tubular bag bag 1.
  • the quick release 22, 22 ' makes it possible to open the bag 1 several times and to close again.
  • the bag contains in the embodiment according to Figure 2c Similarly, the opening device 10 and the longitudinal weld 10 along which the bag 1 can be opened after cooking the food. This is analogous to the case as it is for the embodiment in FIG. 2a and 2b is described.
  • FIG 2d shows a fourth embodiment of a bag 1.
  • This bag 1 is in the in Figure 2d Shown top view closed on three sides and has on one side as well Figure 2c of the third embodiment known quick release 22.
  • the bag 1 also has the longitudinal weld seam 10 or opening device 10, over which the two opening tabs 8, 8 'are spaced apart.
  • the quick release 22 or 22 ' is formed and tightly closed, that the pressure of the cooking atmosphere, which is formed during cooking of the food inside the bag, is insufficient to open this snap closure 22, 22', however, sufficient to spend the opening tabs 8, 8 'from the starting position A in the opening relief position B.
  • FIG. 3a shows a fifth embodiment of a tubular bag 1.
  • the bag 1 has a longitudinal weld 10, which is designed as an opening device 10, and at its opposite ends in each case a transverse weld 20, 20 ', already in relation to the embodiments of FIGS. 2a to 2d is described.
  • a longitudinal weld 10 which is designed as an opening device 10
  • a transverse weld 20, 20 ' already in relation to the embodiments of FIGS. 2a to 2d is described.
  • the opening tab 8 extends here along the longitudinal weld 10 and is assigned to this.
  • the opening tab 8 hides in its initial position A, the longitudinal weld 10 by being parallel to the bag material. 2 or which surrounds the receiving space 4 surrounding wall of the bag 1 and projects beyond the longitudinal weld 10.
  • the opening tab 8 lies flat in its initial position A against the bag material 2 or the wall of the bag 1 surrounding the receiving space 4.
  • a susceptor 16 ', 16 is applied in a central region 24.
  • FIG. 3a shown as a black curved bar.
  • the susceptor 16 or 16 ' is printed by means of a conventional printing method.
  • the susceptor 16 is applied to the bag material 2 in a region of the receiving space 4 which is covered in the initial position A of the opening tab 8, and the susceptor 16 'is accordingly the susceptor 16 opposite to the opening tab 8 printed.
  • the susceptors 16, 16 ' may be printed on opposing surfaces or may be provided only opposite each other so as to be separated from each other by the film material or opening tab material (in this case integrally attached to the bag 1 as the bag material) are spaced.
  • the susceptor 16, 16 ' is printed as a paint or ink on the bag, which is for example metallic, in any case electrically conductive.
  • the bag material 2 is made of a material shrinking upon heat application. However, the bag material shrinks only at such a heat load, which is as hot as the heat generated by the susceptor itself. The heat of the cooked food, however, is not sufficient for a deformation of the bag material 2.
  • FIG. 3a the opening tab 8 is shown on the bag material 2 or the wall of the bag 1 surrounding the receiving space 4 in its initial position A.
  • the bag material 2 and the integral opening tab 8 likewise made of the bag material deform in the area of the susceptor 16, 16 'in such a way that a cavity H is created between the opening tab 8 and the outer surface of the bag material 2 in the region of the receiving space 4, into which the consumer can easily engage to pull on the opening tab 8.
  • the opening device is accordingly in this case the predetermined breaking point of the longitudinal weld seam 10 as well as the transverse weld seam 20 or 20 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Package Specialized In Special Use (AREA)
EP12002259.5A 2012-03-29 2012-03-29 Sac adaptée pour un four à micro-ondes, notamment pour la réception d'aliments Withdrawn EP2644526A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12002259.5A EP2644526A1 (fr) 2012-03-29 2012-03-29 Sac adaptée pour un four à micro-ondes, notamment pour la réception d'aliments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12002259.5A EP2644526A1 (fr) 2012-03-29 2012-03-29 Sac adaptée pour un four à micro-ondes, notamment pour la réception d'aliments

Publications (1)

Publication Number Publication Date
EP2644526A1 true EP2644526A1 (fr) 2013-10-02

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294087A2 (fr) * 1987-06-05 1988-12-07 Nabisco Brands, Inc. Emballage servant de plat destiné à la préparation de pop-corn dans un four à micro-ondes
US5171950A (en) * 1989-09-11 1992-12-15 General Mills, Inc. Flexible pouch and paper bag combination for use in the microwave popping of popcorn
JPH1191832A (ja) * 1997-09-22 1999-04-06 Daiwa Gravure Co Ltd 包装用袋
US6641882B1 (en) * 2000-11-27 2003-11-04 Daiwa Gravure Co., Ltd. Packaging bag
WO2007146637A2 (fr) * 2006-06-14 2007-12-21 The Glad Products Company Poche adaptée pour un four à micro-ondes ou matériau en feuille
EP1970310B1 (fr) 2007-03-16 2009-11-11 Ludger Fuest Procédé de fabrication d'un sac tubulaire, sac tubulaire tout comme feuille appropriée à la fabrication du sac tubulaire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294087A2 (fr) * 1987-06-05 1988-12-07 Nabisco Brands, Inc. Emballage servant de plat destiné à la préparation de pop-corn dans un four à micro-ondes
US5171950A (en) * 1989-09-11 1992-12-15 General Mills, Inc. Flexible pouch and paper bag combination for use in the microwave popping of popcorn
JPH1191832A (ja) * 1997-09-22 1999-04-06 Daiwa Gravure Co Ltd 包装用袋
US6641882B1 (en) * 2000-11-27 2003-11-04 Daiwa Gravure Co., Ltd. Packaging bag
WO2007146637A2 (fr) * 2006-06-14 2007-12-21 The Glad Products Company Poche adaptée pour un four à micro-ondes ou matériau en feuille
EP1970310B1 (fr) 2007-03-16 2009-11-11 Ludger Fuest Procédé de fabrication d'un sac tubulaire, sac tubulaire tout comme feuille appropriée à la fabrication du sac tubulaire

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