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
  • 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
  • B65D75/5827—Tear-lines provided in a wall portion
  • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
• • 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
  • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
  • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
  • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
  • B65D85/76—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials for cheese

Definitions

• the present invention relates to an assembly comprising a portion of processed cheese and a packaging tightly enveloping said portion, the packaging comprising an element itself comprising a sheet closely enveloping said portion and in contact with it, and priming means. of a tear so that the sheet tears along at least one tear line when a tab for gripping the element is pulled.
• Processed cheeses are understood to mean the products obtained by hot melting, in the presence or not of melting salts, cheeses alone or mixed with other dairy raw materials, butter, milk powder, whey, milk fat anhydrous, protein concentrates, etc.).
• processed cheese also includes products where the raw materials for cheese or milk are partially or completely replaced by vegetable matter (fat or protein).
• the portions of melted cheese, of pasty consistency are closely packed in packages made from several elements which include aluminum foil.
• an element of the packaging usually comprises a sheet and a tearing member attached by welding to the sheet. One end of the tear member protrudes from the sheet to form the grip tab.
• the tear member locally strengthens the sheet so that when a consumer pulls on the gripping tab, it allows a tear initiation of the sheet along the outer edges of the tear member. When the consumer continues to pull on the grip tab, the tearing member guides along its outer edges the tears in the sheet thus initiated.
• These tearing members are generally relatively long to be able to guide the tears over the entire length of the tear lines.
• An object of the invention is therefore to provide an assembly of the aforementioned type which is simpler and more economical to produce.
• the invention relates to an assembly of the aforementioned type, characterized in that at least a first part of said or each tear line is defined by or in a material of the sheet.
• the assembly may include one or more of the following characteristics, taken alone or in any technically possible combination:
• the sheet comprises a material whose tear resistance in the direction of the or each first part of tear line is less than its tear resistance in a direction orthogonal to the direction of the or each first part of tear line ;
• Said material is a material oriented mainly along the direction of the or each first part of the tear line;
• a line of least resistance is formed in the sheet substantially along the or each first part of the tear line;
• the or each line of least resistance is a line obtained by damage to the sheet by a laser beam
• the or each line of least resistance is a line obtained by mechanical damage to the sheet by a tool
• the grip tab is formed at least partially by a part of the sheet;
• the priming means comprise at least one cut in the sheet near the gripping tab and at one end of the or each first part of the tear line;
• the sheet has two tear lines, the first parts of which are substantially parallel and spaced from one another, the first two parts delimiting between them in the sheet at least part of a tearable strip terminated by the gripping tab ;
• the packaging comprises a substantially cylindrical sleeve, a bottom and a cover which close the sleeve at its lower and upper ends; and - said packaging element forms at least said sleeve, said or each first part of tear line extending in the vicinity of the bottom or of the cover.
• FIG. 1 is a plan view of an element according to the invention
• FIG. 2 to 6 are schematic perspective views illustrating successive steps of a method of packaging a portion of processed cheese from the element of figure 1,
• FIG. 7 is a schematic perspective view, partially broken away, illustrating the assembly comprising the portion of processed cheese and the packaging thus obtained
• FIG. 8 is a schematic perspective view, partially broken away, illustrating the opening of the packaging of FIG. 7,
• FIG. 9 is a view similar to Figure 1 illustrating another embodiment of the invention.
• FIG. 1 represents an element 1 for forming a packaging for packaging a portion of processed cheese.
• Element 1 consists of a rectangular sheet 2 elongated in a longitudinal direction.
• This sheet 2 is produced for example from a material oriented mainly longitudinally, that is to say parallel to the long sides 3 and 4 of the sheet 2.
• the sheet 2 offers a resistance to tearing in its longitudinal direction less than its resistance to tearing in its transverse direction.
• the sheet 2 has the property of being torn, after initiation, preferably in a substantially straight line along its longitudinal direction.
• Longitudinal notches 6 of short length have been provided from the small left side 5 of the sheet 2. These notches 6 have for example a length of between 1 and 3 mm.
• the notches 6 are spaced transversely from one another and advantageously arranged symmetrically with respect to the median longitudinal axis of the sheet 2.
• the notches 6 are each arranged at a short distance. one of the long sides 3 and 4 of the sheet 2.
• the longitudinal lines 8 (in dashed lines with two dashes in FIG. 1), which extend the notches 6 in the sheet 2, are predetermined tear lines of the item 2. These tear lines 8 delimit between them a central and longitudinal strip 9 which forms, between the notches 6, a gripping tab 10 of rectangular shape. The inner ends 1 1 of the notches 6 delimit the inner corners of the gripping tab 10.
• a sleeve 14 of corresponding shape visible in Figures 3 and 4.
• This sleeve 14 has a tip 1 5 and a curved heel 16.
• the element 1 overlaps itself in the vicinity of the heel 16 on a low part of the length of a lateral face 17 of the sleeve 14, this face 17 connecting the toe 15 to the heel 16.
• the short side 5 of the sheet 2 is located in the extension of the lateral face 17 beyond the edge 18 connecting the heel 16 to the lateral face 17.
• the gripping tongue 10 projects relative to the sleeve 14, beyond the edge 18, in the extension of the lateral face 17.
• the mandrel 13 is then slightly removed axially from the sleeve 14 so that the flange 19 of the sleeve 14, delimited by the long side 3 of the sheet 2 and the adjacent tear line 8, protrudes from the mandrel 13.
• the flange 19 of the sleeve 14 is then folded back over the mandrel 13 by folding substantially along the adjacent tear line 8.
• a bottom panel 20 is then sealed, in the shape of a disk sector corresponding to that of the mandrel 13, against the flange 19 folded down from the sleeve 14.
• This panel 20 is for example made of the same material as the sheet 2.
• a cup 21 is thus obtained, shown in FIG. 5 after turning over with respect to FIG. 4, and after complete axial withdrawal of the mandrel 13.
• the cup 21 is then partially filled with melted cheese 22 leaving the upper rim 23 of the sleeve 14, delimited by the long side 4 of the sheet 2 and the adjacent tear line 8, protruding from the upper surface of the cheese 22 contained in the bucket 21.
• This melted cheese 22 then forms a portion, of cylindrical shape with axis A and basic in the sector of the disc, and contained in the cup 21.
• a cover panel 24 in the shape of a disk sector corresponding to that of the mandrel 1 3 in the free upper end of the sleeve 14.
• This panel 24 is for example made of the same material as the sheet 2.
• the panel the cover 24 is then applied to the upper surface of the portion of processed cheese 22.
• the upper rim 23 of the sleeve 14 is then folded back over the cover panel 24 by folding the sheet 2 substantially along the adjacent tear line 8. This rim 23 is then sealed on the cover panel 24.
• the sealing of the cover panel 24 on the sleeve 14 is carried out by sealing a rim of the panel 24, folded outwards, on the rim 23 , for example using sealing jaws which can move radially with respect to the axis A.
• the bottom panel 20 can also be similarly sealed on the sleeve 14 to form the cup 21.
• an assembly 25 is thus obtained comprising a packaging 26 and a portion of melted cheese 22 tightly wrapped by the packaging 26 and visible thanks to the cutaway of FIG. 7.
• the packaging 26, and in in particular the central strip 9 of the sheet 2 is directly in contact with the portion 22.
• the package 26 has a cylindrical shape with axis A and base in the disc sector. This shape is delimited by the central strip 9 of the sheet 2 closed at its ends by a bottom 27, formed by the rim 19 of the sheet 2 and by the bottom panel 20, and by a cover 28, formed by the rim 23 of the sheet 2 and through the cover panel 24.
• a consumer can, for example, grasp the packaging 26 between his left thumb and his left index finger which bear respectively on the cover 28 and on the bottom 27, the heel 16 then being directed towards the consumer's left palm.
• the opening of the package 26 is therefore relatively easy.
• the element 1, which consists of only one sheet 2 is relatively simple and economical to produce. Indeed, this element 1 does not require to bring on the sheet 2 a tearing member. Thus, all the problems associated with this tearing member are eliminated. It is in particular neither necessary to use several materials to form the element 1 nor to provide specific equipment for cutting, placing and welding a tearing member on the sheet 2. In addition, the risks of failure to open linked to a bad positioning or a bad shape of the tearing organ as well as to a rupture of this organ are eliminated.
• the invention can of course be applied to packaging of other shapes than those shown.
• the packages can be of cylindrical shape with square base, rectangular, circular ...
• the packaging 26 may consist of two elements, a first of these elements forming a cup and the second element forming a closure bottom of the upper free end of the cup.
• the first element then comprises a sheet whose structure is adapted to ensure the initiation and the propagation of tears along predetermined tear lines.
• the materials constituting the sheets of the different elements of the same package can be different.
• the sheet 2 can be produced for example from mono-oriented polyethylene such as that sold by the company Mobil under the registered trademark "HICOR".
• the sheet 2 is for example a sheet of a plastic material extruded in the longitudinal direction of the sheet 2.
• the fibers or polymer chains of the sheet 2 are therefore oriented mainly along the direction of extrusion , i.e. along the longitudinal direction of sheet 2.
• the sheet may comprise several layers of material, at least one of which is a material oriented mainly in the longitudinal direction of the sheet 2.
• mono-oriented polyethylene "HICOR” can be complexed with other polymers, oriented or not, such as oriented polypropylene, polyethylene terephthalate or polyamide.
• the lines 8 can be lines of lesser resistance formed in the sheet 2 by damage to at least one of its surfaces. This damage can be obtained, for example, by marking with a laser beam or by mechanical marking with a tool such as, for example, a thumb wheel.
• the sheet 2 is therefore designed to tear itself along at least part of the tear lines.
• each notch 6 can be doubled with another neighboring and parallel notch 6.
• the part of the central strip 9 forming the gripping tab 10 is covered with a reinforcing and gripping member of the same rectangular shape which will participate in the initiation of the tears which will then propagate along the lines 8.
• the gripping tongue can be formed at least partially by a reinforcing and gripping member attached to the level of the initiation zone for tears.
• This embodiment is particularly advantageous in the case where the gripping tab is located in the vicinity of the tip 15 of the package 26.
• the manufacturing constraints linked to the presence of this reinforcing and gripping member are less important than for conventional tearing devices.
• the reinforcing and gripping member ensures or participates in the initiation of the tears but does not guide them over the entire length of the tear lines.
• This embodiment can also be applied to the production of packaging such as that of document EP-340 093, as illustrated by FIG. 9 which corresponds to FIG. 1 of document EP-340 093, the tear lines 8 being rectilinear.
• the reinforcing and gripping member 32 ensures the initiation of the tears and their guidance in the initial parts 33 of the tear lines 8.
• the sheet 2 then itself guides the tears along the terminal parts straight lines 34 of tear lines 8, due to the design of sheet 2 which comprises, for example, a material oriented mainly parallel to these parts 34 of lines 8.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
• Packages (AREA)
• Wrappers (AREA)
• Dairy Products (AREA)
• Cosmetics (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (2)

Family

ID=8845705

Family Applications (1)

Country Status (13)

Families Citing this family (13)

Family Cites Families (16)

• 2000
  • 2000-01-07 FR FR0000194A patent/FR2803582B1/fr not_active Expired - Fee Related
• 2001
  • 2001-01-05 AU AU31845/01A patent/AU777494B2/en not_active Ceased
  • 2001-01-05 CA CA002396791A patent/CA2396791A1/fr not_active Abandoned
  • 2001-01-05 EP EP01903879A patent/EP1283808B1/de not_active Expired - Lifetime
  • 2001-01-05 US US10/169,377 patent/US7318941B2/en not_active Expired - Fee Related
  • 2001-01-05 AT AT01903879T patent/ATE298714T1/de not_active IP Right Cessation
  • 2001-01-05 JP JP2001550130A patent/JP2003519057A/ja active Pending
  • 2001-01-05 PL PL01358920A patent/PL358920A1/xx not_active Application Discontinuation
  • 2001-01-05 CZ CZ20022362A patent/CZ294915B6/cs not_active IP Right Cessation
  • 2001-01-05 WO PCT/FR2001/000035 patent/WO2001049586A2/fr not_active Ceased
  • 2001-01-05 ES ES01903879T patent/ES2243438T3/es not_active Expired - Lifetime
  • 2001-01-05 DE DE60111740T patent/DE60111740T2/de not_active Expired - Lifetime
  • 2001-01-05 SK SK952-2002A patent/SK9522002A3/sk unknown

Non-Patent Citations (1)

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