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
  • B65D33/01—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
  • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
• • 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
  • B65D33/04—Windows or other apertures, e.g. for viewing contents
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
  • Y10T428/1303—Paper containing [e.g., paperboard, cardboard, fiberboard, etc.]
  • Y10T428/1307—Bag or tubular film [e.g., pouch, flexible food casing, envelope, etc.]

Definitions

• the present invention relates to a bag for holding foodstuffs, in particular foods to be warmed or to be cooked and / or baked goods to be baked and / or baked, having a substantially closed bottom end and an opposite opening end, comprising a front wall and a rear wall which are in the area their side edges and bottom edges are at least partially connected directly or via side walls. Furthermore, the present invention relates to the use of these bags as baking bags or Aufdozensrm milk for baked goods or food.
• the object of the present invention was to provide bags, in particular baking bags, which are not subject to the disadvantages of the prior art and with which the foodstuff can be stored, in particular over a relatively long period of time and over a very wide temperature range, without to lose its freshness and consistency and even after the warm-up or bake provide a pleasing visual appearance and are to be used as a consumption container.
• a bag for containing foodstuffs, in particular foodstuffs to be warmed or cooked and / or baked and / or baked baked goods, having a substantially closed bottom end and an opposite opening end, comprising a front wall and a rear wall which are in the area of their Side edges and bottom edges are at least partially connected to each other directly or via side walls, wherein the front wall and / or the rear wall and optionally also at least one side wall, preferably all side walls, glassine paper and / or a one- or two-sided fluorine-coated pulp paper include or are formed thereof.
• Glassine papers and their preparation are known in the art. The production of glassine paper is found for example in the " Encyclopedia of Polymer Science and Technology "(Vol. 9, John Wiley, 1968, page 719 ). Suitable glassine papers are commercially available in bleached or unbleached form. Glassine paper is generally made from finely ground pulp. For example, suitable glassine paper can be obtained from sulfite pulp by repeated moistening and satining. For the bags according to the invention for use Emerging glassine papers may in one embodiment have been completely or almost completely made from virgin fibers. Its high transparency receives it by a so-called sharp Satinage, ie by pronounced smoothing and pressing of papers. Suitable glassine papers are preferably smoothed on both sides.
• glassine paper is less wet-strength.
• Commercially available such glassine papers are those which are approved for food contact according to Regulation (EC) No. 1935/2004.
• such glassine papers are just as preferred as glassine papers which are food safe in accordance with BFR 36/2.
• the weight per unit area of particularly suitable glassine papers is in the range from 20 to 150 g / m 2 , preferably in the range from 30 to 90 g / m 2 and particularly preferably in the range from 35 to 65 g / m 2 , determined according to ISO 536.
• the thickness is particularly high suitable glassine paper is in the range of 20 to 100 ym, preferably in the range of 30 to 80 ym.
• the density of particularly suitable glassine papers is in the range of 0.8 to 2.0 g / cm 3 , preferably in the range of 1.0 to 1.5 g / cm 3 , determined according to ISO 534.
• the air permeability of Bendtsen (determined according to DIN EN 53120 T1-08.79) of particularly suitable glassine papers is in the range of 5 to 30 ml / min, in particular in the range of 6 to 25 ml / min.
• the residual moisture content of suitable glassine papers, determined in accordance with ISO 287, is preferably in the range from 4 to 12%, preferably in the range from 5 to 10%, for example in the range from 6 to 8% or from 7 to 9%.
• the glassine paper may be single or multi-ply glassine paper.
• the person skilled in the art is aware of laminating two or more layers of glassine paper to one another. Accordingly, it is self-evident in the bags according to the invention also possible to use glassine papers, which are formed of several layers of glassine paper.
• the glassine paper used in the bags according to the invention is preferably embossable and / or printable, in particular embossable and / or printable on both sides.
• glassine papers which have not been surface-treated, in particular have not been treated with silicone substances or with fluorinated substances.
• Pulp or paper papers which are substantially completely pulp based are also known to those skilled in the art. This also applies to one or both sides fluorinated cellulose papers. For example, if no particular value is placed on the printing or the print quality of the bag, it is possible to fall back on a single-sided coated cellulose paper.
• the fluorine-coated side of this paper preferably faces the inside of the bag or forms the inside of the bag. This is usually the side that faces the food product to be heated, baked or cooked, or that comes into contact with it.
• the basis weight of particularly suitable fluorine-coated pulp papers is in the range from 20 to 150 g / m 2 , preferably in the range from 25 to 140 g / m 2 and particularly preferably in the range from 30 to 110 g / m 2 , for example in the range from 32 to 100 g / m 2 , determined according to ISO 536.
• suitable suitable fluorine-coated pulp papers are all cellulose papers which have been treated with a fluorine-containing compound. These may be, for example, partially or perfluorinated compounds, for example monomeric or polymeric compounds. It is particularly preferable to make use of such single- or double-sided, fluorine-coated pulp papers which are substantially free of fluorosurfactants, in particular substantially free of fluorotelomer alcohol (FTOH), perfluorooctylsulfonates (PFOS) and / or perfluorooctylic acid or salts thereof
• FTOH fluorotelomer alcohol
• PFOS perfluorooctylsulfonates
• Suitable pulp papers may be treated with at least one partially or perfluorinated polymer and / or a compound having at least one partially and / or perfluorinated linear or branched carbon chain, for example from 2 to 50 carbon atoms.
• Suitable partial or perfluorinated compounds include ammonium di- [2- (N-ethyl-hepta-decafluorosulfonamido) ethyl] phosphate, poly (2- (N-methyl-heptadecafluorosulfonamido) -ethyl acrylate) -co- (2,3-epoxypropyl acrylate) -co- (2-ethoxyethyl acrylate) -co- (2- (2-methylprope-nyloyloxy) ethyltrimethylammonium chloride and poly (2- (N-methylheptadecafluorosulfonamido) ethyl acrylate) -co- (2,3-
• all paper components of front wall and / or rear wall and optionally of at least one side wall in particular all side walls of glassine paper, in particular all paper components of front wall and rear wall and optionally of at least one side wall, in particular all side walls.
• the ratio of open area formed by the perforations to the total area of the front wall can be in the range from 1/25 to 1/500, in particular from 1/50 to 1/250, and / or the ratio of open area formed by the perforations in the rear wall to the total area of the rear wall in the range from 1/25 to 1/500, in particular from 1/50 to 1/250, and / or that the ratio of open area formed by the perforations in at least one side wall to the total area thereof Side wall in the range of 1/25 to 1/500, in particular from 1/50 to 1/250, lie.
• the perforation holes preferably have an average diameter of 0.2 to 2.0 mm, particularly preferably 0.4 to 1.5 mm. Such perforation holes are on average spaced from immediately adjacent perforation holes in the glassine paper used or in the one or both sides fluoro-coated pulp paper in a preferred embodiment about 0.5 to 2.0 cm.
• such bags are also included, in which the rear wall is or is at least partially, in particular substantially completely, made of glassine paper and in which the front wall is or is formed in at least a first region of glassine paper and in at least a second region is formed from a transparent or translucent plastic film or in which the front wall is formed from the transparent or translucent second plastic film, wherein the glassine paper and the plastic film are at least partially connected with an adhesive in the region of overlapping bearing surfaces.
• the glassine paper and / or the plastic film are perforated.
• such bags are particularly suitable in which the rear wall is or at least partially, in particular substantially completely, formed of one or both sides fluoro-coated pulp paper or that the front wall in at least a first region of one or both sides fluoro-coated pulp paper is formed or exists and is formed in at least a second region of a transparent or translucent plastic film or in which the front wall of the transparent or translucent second plastic film is formed, wherein the on or Both sides fluoro-coated cellulose paper and the plastic film in the region of overlapping bearing surfaces are at least partially connected with an adhesive.
• a, preferably aliphatic, polyurethane hotmelt adhesive e.g. a one-component moisture-curing reactive polyurethane hot melt adhesive.
• the plastic film expediently represents a polyester film, in particular a PET film, or a polypropylene film, preferably as a single-layer or multi-layer film in mono- or biaxially oriented form. It is particularly preferable to resort to plastic films, in particular PET films, with little or no shrinkage.
• the pouches according to the invention are suitable as baking pouches for baking pre-baked and / or baked baked goods or as warming or cooking pouches for foods to be heated or cooked, such as pizzas, crepes, pancakes, burgers and potato pancakes.
• the present invention was based on the surprising finding that it is possible to obtain a grease and temperature-resistant packaging suitable for foodstuffs, which also satisfies all foodstuffs requirements, if these are produced essentially exclusively from glassine paper and / or from a single- or double-sided fluorinated paper pulp paper , These papers are color stable, even after submission to a warm-up or cooking process. In particular, these papers, or the pouches obtained with the aid of these papers, after such baking, reheating or cooking process still always on a sufficient mechanical stability or bursting strength.

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

Priority Applications (2)

Applications Claiming Priority (1)

Publications (1)

Family

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Family Applications (1)

Country Status (2)

Cited By (1)

Families Citing this family (4)

Citations (3)

Family Cites Families (13)

• 2011
  • 2011-09-30 EP EP11007991A patent/EP2574565A1/fr not_active Withdrawn
• 2012
  • 2012-09-28 US US13/631,805 patent/US20130084374A1/en not_active Abandoned

Patent Citations (3)

Non-Patent Citations (1)

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