EP1967106A1 - Boîtes de conserve dotées d'un revêtement anti-adhésif - Google Patents

Boîtes de conserve dotées d'un revêtement anti-adhésif Download PDF

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Publication number
EP1967106A1
EP1967106A1 EP07405079A EP07405079A EP1967106A1 EP 1967106 A1 EP1967106 A1 EP 1967106A1 EP 07405079 A EP07405079 A EP 07405079A EP 07405079 A EP07405079 A EP 07405079A EP 1967106 A1 EP1967106 A1 EP 1967106A1
Authority
EP
European Patent Office
Prior art keywords
insert
side wall
stick coating
lid
tin
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Withdrawn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
EP07405079A
Other languages
German (de)
English (en)
Inventor
Eric Gérald Cossy
Christian Knoll
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.)
Blechverpackungen Louis Sauter AG
Original Assignee
Blechverpackungen Louis Sauter AG
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 Blechverpackungen Louis Sauter AG filed Critical Blechverpackungen Louis Sauter AG
Priority to EP07405079A priority Critical patent/EP1967106A1/fr
Publication of EP1967106A1 publication Critical patent/EP1967106A1/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Withdrawn legal-status Critical Current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
    • B65D81/3407—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 over a heat source, e.g. a hob, campfire
    • 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
    • B65D81/343—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 in a conventional oven, e.g. a gas or electric resistance oven

Definitions

  • the present invention relates to a tin can with a non-stick coating according to the features of the preamble of claim 1.
  • Tin cans are known from the prior art.
  • such cans include a bottom, a lid, and a sidewall.
  • the bottom and the lid are connected during production, for example by means of a crimping machine with the side wall.
  • the cans are tinplate or a thin sheet steel.
  • a deep drawing method is used. This results in a deep-drawn body with a bottom and a side wall. Typically, the lid is then connected to the thermoformed body by a crimping process.
  • cans are known in which the lid has a predetermined breaking point and an opening element. As soon as a force is exerted on the lid with the opening element, the predetermined breaking point breaks and the user can tear open the lid.
  • the inside of a can is typically provided with a plastic coating of polypropylene or a metallic protective coating.
  • a disadvantage of prior art cans is the fact that when the can is heated with, for example, a gas burner or a cooker, foods often burn on the inside of the can and, if necessary, the polypropylene layer is destroyed. If the consumer wants to prevent burning, he is forced to heat the contents of the can in a pan or other cooking utensil. But he has, and this is a disadvantage, for example, when camping in the open air to clean another harness.
  • the painting of the entire inside of a tin can also be disadvantageous.
  • inedible substances from the interior paint can solve. Accordingly, the user must adjust the cooking temperature so that it is below the limit temperature. In the case of polypropylene, this limit temperature is below 140 ° C., for example. Otherwise, the user risks that the inedible substances get into the food. The user therefore needs more time to cook the food and must take care.
  • the invention has for its object to provide a tin can, which overcomes the disadvantages of cans of the prior art. In particular, a burning of the food in the tin can be avoided.
  • a can comprises a can bottom, a can side wall and a can lid.
  • the can side wall completely surrounds the circumference of the bottom of the can so as to create an interior for receiving food.
  • the interior can be closed with the can lid.
  • the surface of the can bottom, which faces the interior of the can, is coated with a non-stick coating.
  • the surface of the can sidewall facing the interior of the can is at least partially coated, preferably in a lower region adjacent to the can bottom, with a non-stick coating.
  • the coating in the lower area of the can side wall is advantageous because it can prevent the food from burning on the can side wall when heated from the outside.
  • the surface of the can side wall, which faces the interior of the can is completely coated with a non-stick coating.
  • a complete coating of the inside of the can bottom and the can side wall is particularly advantageous if the can is also heated in the region of the side wall.
  • the non-stick coating is polytetrafluoroethylene or tetrafluoroethylene. These two materials have a very low frictional resistance with food, which is why a burning or sticking of food on the non-stick coating can be prevented. Furthermore, especially the materials mentioned are inert, so a reaction with the food and the non-stick coating is avoided.
  • FIG. 1 schematically a can according to the invention is shown according to an embodiment.
  • the can comprises a can bottom 1, a can side wall 2 and a can lid 3.
  • the can bottom 1 preferably has a circular base and is preferably designed as a disc.
  • the can side wall 2 extends substantially perpendicular to the can bottom 1 and extends concentrically to the edge 11 of the can bottom 1.
  • the resulting can D therefore has a cylindrical outer shape and with an interior I.
  • Other shapes, such as a cuboid or conical shape, are also conceivable.
  • the can bottom 1 has an outer surface or outer side 10 and an inner surface or inner side, which is not visible in the figures.
  • the inside is the side of the can bottom 1, which faces the interior I of the can D. That is, the stuffed into the can D foods come into contact with the inside of the can bottom 1.
  • the can side wall 2 has an outer surface or outer side 20 and an inner surface or inner side 21.
  • the inside of the side of the can side wall 2 is referred to, which is the interior I of the can D faces, and thus in contact with the food.
  • can D was the can bottom 1 by means of a crimping process with the can side wall 2 is connected. This results in the lower part of the can side wall 2, a constriction 23 and a flaring or bead 12.
  • the can D can also be produced by means of a deep-drawing process, in which case the constriction 23 and the flare then omitted.
  • the can D can have a different diameter and a different height. In particular, the height of the can D may be smaller than the diameter of the can D.
  • the can lid 3 is connected to the side wall 2 after filling the can D with food.
  • the lid 3 also has an outer surface or outer side 31 and an inner surface or inner side 32, wherein the inner side faces the inner space I of the can D.
  • the bottom of the can 1 is coated on its inside with a non-stick coating.
  • the non-stick coating extends over the entire surface of the can bottom 1, which is directed against the interior I.
  • a non-stick coating is understood to be a coating which has the smallest possible frictional resistance to other materials, in this case compared to the foods filled into the can, or the smallest possible surface roughness. This prevents burning of the food to be cooked.
  • the inside 21 of the can side wall 2 and the inside 31 of the can lid 3 may be coated with a plastic from the prior art. Alternatively, instead of the plastic, an inner coating of the prior art could be used.
  • the user directs the heat source only on the floor 1, thus it can be avoided that the inedible substances dissolve by the evolution of heat from the inner coating paint.
  • a lower region D1 is understood to mean a region which adjoins the can bottom 1 and extends along a specific length in the direction of the side wall.
  • the upper region of the D2 of the can side wall 2 and the inner side 31 of the can lid 3 can analogously to the embodiment described above with a plastic or an interior paint of the prior art be coated.
  • Such an embodiment according to the second embodiment is particularly advantageous when the outside 20 of the can side wall 2 comes into contact with flames of a burner or may come. Accordingly, it is prevented with such a coating that the food burns in the lower region D1 or in the transition from the can bottom 1 to the can side wall 2.
  • the entire inner side 21 of the can side wall 2 is provided in a non-stick coating.
  • the inside 31 of the can lid 3 is coated according to the third embodiment with a plastic or an inner coating of the prior art.
  • Such an embodiment is particularly advantageous for campers or hikers, etc. who want to prepare a meal within a very short time. Since the coating of the inside 21 of the can side wall 2 allows the user to direct the heat source, such as a gas burner, also on the can sidewall 2 and not only on the can bottom 1. As a result, the food in the can D are heated quickly.
  • a can lid 3 is used in all three described embodiments, which can be opened without can opener or other tool. This avoids that the user instead of the can lid 3 falsely removed the bottom of the can 1 with the non-stick coating.
  • the can lid 3 may be provided with tear lines, not shown, or predetermined breaking points and a pull-tab, also not shown. As soon as the user pulls on the tear-open tab, parts of the can lid 3 tear along the tear line and the user can open the tin accordingly.
  • the tear line can be completely configured around the can lid 3 circumferentially or interrupted. For example, it is conceivable that the tear line is interrupted on the opposite side of the tear tab.
  • the can lid 3 can not be completely demolished, the can lid 3 is therefore connected to the can D. Once the can lid 3 has been torn open along the entire interrupted tear line, this can then be folded at the point at which the tear line is interrupted, so that the can lid 3 protrudes from the can D. The user can hold the protruding can lid 3 while stirring the food and thus prevent the can D from falling from the cooker by the stirring motion.
  • the can advantageously be labeled accordingly, so that the user can recognize at which point the can is to be opened.
  • the can lid 3 and / or the can bottom 1 with a corresponding embossing or a corresponding imprint.
  • PTFE polytetrafluoroethylene
  • Teflon tetrafluoroethylene
  • TFE tetrafluoroethylene
  • the non-stick coating can for example be sprayed or pressed onto the corresponding surfaces according to the embodiments described above.
  • the surface is preferably roughened in advance, so that a better adhesion of the anti-adhesive layer is achieved on the surface.
  • the layer thickness of the non-stick layer is preferably between 10 ⁇ m and 120 ⁇ m, particularly preferably between 30 ⁇ m and 60 ⁇ m.
  • the non-stick coating by nanotechnological processes.
  • the surface of the non-stick coating should as far as possible have a surface structure whose average roughness is in the nanometer range.
  • the height and depth differences of the non-stick layer are in a range of 1 to 500 nanometers.
  • a Rauhstoffwert of 10 to 100 nanometers
  • the can D as in FIG. 1 is shown, an optional insert E up.
  • the insert E projects into the upper region D2 of the can D.
  • the volume of the can D is divided into two parts by volume.
  • Such an insert E is advantageous because it allows two different types of food to be arranged in a can. For example, it is conceivable that in a lower volume part V1, that is in the can D, a meat dish is filled, and that in the upper volume part V2 of the insert E a pasta dish and / or vegetables is filled. Thus, the user can prepare a complete meal.
  • the insert E can also be used in a can from the prior art.
  • the insert E comprises an insert bottom 4 and an insert side wall 5 extending vertically from this insert bottom 4.
  • an insert E is specified, which essentially represents a vessel with an inner space IE for receiving food.
  • the insert E has an outer diameter which is smaller than the inner diameter of the can D, so that the insert E can be inserted into the can D.
  • the insert E may have a bead 52.
  • the bead 52 extends parallel to the central axis of the insert side wall 5 in the interior IE of the insert E.
  • a channel through which steam at the heating the can D arises can escape.
  • the food filled in the can D and the feed E may be heated at the same time.
  • the insert sidewall 5 may also have an expansion 53 in the region opposite the insert bottom 4.
  • the insert E may be present at the upper end of the can sidewall 2.
  • the expansion can be dispensed with, so that the insert stands up on the food present in the can.
  • the insert E may further comprise a separate lid, not shown.
  • the insert E can also be placed in the can D without a lid, in which case the lid 3 of the can forms the closure member.
  • the interior surfaces facing the insert base 4 and the insert side wall 4 may be coated analogously to the above embodiments. These surfaces can also be referred to as inner pages.
  • the inside 41 of the insert base 4 may be provided with a non-stick coating.
  • the inner side 51 of the insert side wall 5 is then coated with a plastic or an inner coating of the prior art.
  • non-stick coatings reference is made to the embodiments described above.
  • both the inner side 41 of the insert base 4 and the inner side 51 of the insert side wall 5 should be provided with a non-stick coating.
  • the inside of the can side wall 2 only in the lower region with the non-stick coating.
  • the lower portion extends in this embodiment from the can bottom 1 to the insert bottom 4 of the insert E used.
  • only the area of the can side wall 2 is provided with the non-stick coating, which does not face the insert side wall 2.
  • the partial attachment of the non-stick coating on the surfaces, which faces the interior, is advantageous because it can be the non-stick coating be used as efficiently and economically as possible.
  • the outside of the insert base 4 may be provided with a non-stick coating.
  • the outside is understood here to be the side which is directed against the interior I, ie the space in which the foodstuffs are arranged in the can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Cookers (AREA)
EP07405079A 2007-03-09 2007-03-09 Boîtes de conserve dotées d'un revêtement anti-adhésif Withdrawn EP1967106A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07405079A EP1967106A1 (fr) 2007-03-09 2007-03-09 Boîtes de conserve dotées d'un revêtement anti-adhésif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07405079A EP1967106A1 (fr) 2007-03-09 2007-03-09 Boîtes de conserve dotées d'un revêtement anti-adhésif

Publications (1)

Publication Number Publication Date
EP1967106A1 true EP1967106A1 (fr) 2008-09-10

Family

ID=38222562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07405079A Withdrawn EP1967106A1 (fr) 2007-03-09 2007-03-09 Boîtes de conserve dotées d'un revêtement anti-adhésif

Country Status (1)

Country Link
EP (1) EP1967106A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021028902A1 (fr) * 2019-08-13 2021-02-18 Caniel Industry A.T.G Ltd. Récipient de cuisson et son procédé de production

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2807931A3 (fr) * 2000-04-20 2001-10-26 Simonet Gilbert Poele de conserve
DE202004018759U1 (de) * 2004-12-04 2005-03-03 Kaya, Nihat Behältnis zum Lagern sowie zum Kochen oder Backen von Gerichten

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2807931A3 (fr) * 2000-04-20 2001-10-26 Simonet Gilbert Poele de conserve
DE202004018759U1 (de) * 2004-12-04 2005-03-03 Kaya, Nihat Behältnis zum Lagern sowie zum Kochen oder Backen von Gerichten

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021028902A1 (fr) * 2019-08-13 2021-02-18 Caniel Industry A.T.G Ltd. Récipient de cuisson et son procédé de production
US20220279961A1 (en) * 2019-08-13 2022-09-08 Caniel Industry A.T.G Ltd. A cooking vessel and a method of producing the same

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