EP4276030A1 - Packaging with moisture barrier - Google Patents
Packaging with moisture barrier Download PDFInfo
- Publication number
- EP4276030A1 EP4276030A1 EP22172784.5A EP22172784A EP4276030A1 EP 4276030 A1 EP4276030 A1 EP 4276030A1 EP 22172784 A EP22172784 A EP 22172784A EP 4276030 A1 EP4276030 A1 EP 4276030A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- packaging
- cap
- packaging according
- forming
- 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.)
- Pending
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 111
- 230000004888 barrier function Effects 0.000 title claims abstract description 32
- 239000002346 layers by function Substances 0.000 claims description 49
- 239000010410 layer Substances 0.000 claims description 34
- 229920002678 cellulose Polymers 0.000 claims description 21
- 239000001913 cellulose Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 7
- 230000035699 permeability Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 239000012467 final product Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
Images
Classifications
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- 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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
- B65D43/0202—Removable lids or covers without integral tamper element
- B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
- B65D43/0222—Removable lids or covers without integral tamper element secured only by friction or gravity only on the outside, or a part turned to the outside, of the mouth of the container
-
- 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
- B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
- B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
-
- 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
- B65D55/00—Accessories for container closures not otherwise provided for
- B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
- B65D55/06—Deformable or tearable wires, strings, or strips; Use of seals, e.g. destructible locking pins
-
- 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
- B65D2205/02—Venting holes
-
- 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
- B65D2251/00—Details relating to container closures
- B65D2251/0003—Two or more closures
- B65D2251/0068—Lower closure
- B65D2251/0093—Membrane
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00259—Materials used
- B65D2543/00314—Combination, e.g. laminates, several different materials
Definitions
- the invention lies in the field of packaging based on biosourced and/or biodegradable and/or recyclable materials. It concerns more specifically packaging with a reduced environmental impact.
- the invention applies to cylindrical packaging requiring good moisture barrier properties.
- the invention applies in particular to cellulose-based packaging.
- the invention is particularly positioned in the field of packaging for dry products.
- the invention lies in the field of packaging and in particular that of tubular packaging based on biosourced or biodegradable or recyclable materials for preserving dry products.
- the packaging is based on cellulose and can be recycled in the paper industry.
- the packaging comprises at least one container and a cap which slides on said container and the packaging maintains good moisture barrier properties throughout its lifespan.
- the invention relates more specifically to a tubular packaging comprising a container and a cap fitted and sliding on the external surface of the container over a height called "sealing height". More precisely and in embodiments, the invention relates to a packaging formed of two tubular bodies of slightly different diameter, one of said bodies forming the container, and the other of said bodies forming the cap. According to the invention, the cap has a diameter slightly greater than that of the container and it fits and slides on the external surface of the container with the clearance necessary for opening and closing. In the closed position of the packaging, the wall of the cap is superimposed on the wall of the container at a sealing height which guarantees the moisture barrier of the packaging, even after a first or subsequent opening of the packaging.
- the container and the cap are based on biosourced or biodegradable or recyclable materials and comprise at least one layer providing moisture barrier properties.
- the container and the cap are based on cellulose and comprise at least one structural layer based on cellulose, a functional layer providing moisture barrier properties.
- the radial clearance between the outer diameter of the container and the inner diameter of the cap must be between 0.05 mm and 0.25 mm and preferably between 0.1mm and 0.2mm.
- the sealing length i.e. the length of the fit between the container and the cap
- the sealing length must be greater than 50mm and preferably greater than 100mm.
- the packaging is based on recyclable or biodegradable materials and/or from renewable resources.
- the packaging is based on cellulose and can be recycled at the end of its life in the paper industry.
- the rate of cellulose of the packaging is greater than 85% and advantageously greater than 90%.
- the cellulose content of the packaging and that of the cap are identical or close. In another mode of execution, these rates may be different.
- the packaging may also include air entry and exhaust means which facilitate the opening and closing of the packaging.
- the air inlet and outlet means are advantageously linked to the cap, but not exclusively.
- the packaging may also include tamper-evident means which attest to the first opening of the packaging.
- the invention relates to packaging comprising at least a first body forming a container and a second body forming a cap, the container and the cap having moisture barrier properties at their respective walls, the cap having an internal dimension greater than the external dimension of the container and sliding on at least part of the external surface of the container defining a sliding length when opening or closing the package, the clearance created by the difference in said dimensions allowing said opening and said closing without impairing the moisture barrier properties of the packaging.
- the clearance is preferably between 0.02mm and 0.5mm.
- an H/D ratio is greater than 1, preferably greater than 2, H being the sliding length and D the external dimension of the container.
- the container and the cap each include a bottom.
- the container and/or the cap and/or the bottom comprise a structural layer and a functional layer providing water vapor barrier properties.
- the structural layer is based on cellulose with a cellulose content preferably greater than 70%.
- the functional layer is made of high density polyethylene (HDPE) or polypropylene (PP). Other materials or mixtures of equivalent materials are possible.
- HDPE high density polyethylene
- PP polypropylene
- the functional layer forming the internal surface of the cap slides on the structural layer forming the external surface of the container.
- the functional layer forming the internal surface of the cap slides on the functional layer forming the external surface of the container.
- the structural layer of the container is trapped between a first functional layer forming the outer surface and a second functional layer forming the inner surface of the container.
- the cap includes a flared end to facilitate insertion of the cap onto the container.
- the end of the container on which the cap fits comprises a contraction.
- a flare and a contraction can also be used on the same package.
- the packaging includes a tamper-evident system attesting to an opening of the packaging, for example the first opening of the packaging.
- the packaging includes a cover attached to the end of the container.
- the cover can form a tamper-evident system or be part of it.
- the packaging includes air exhaust or air inlet means to facilitate opening and closing of the packaging.
- the packaging has a section of circular oval, oblong or rectangular shape. Other forms are of course possible.
- the container and/or the cap are formed from tubular bodies (or another shape) made from a sheet whose edges are welded or glued and form an assembly zone .
- the ends of the sheet are welded end to end via reinforcing strips, or welded or glued by covering the ends.
- FIG. 1 illustrates an exemplary embodiment of packaging having water vapor barrier properties according to the invention.
- Package 1 includes a tubular body 2 forming a container and closed by a cap 3 sliding on the external surface of said container 2.
- the container 2 and the cap 3 have moisture barrier properties at their respective walls.
- the cap 3 is superimposed on the container 2 over part of the height of the tubular body 2 in order to obtain water vapor barrier properties for the packaging 1.
- the internal dimension of the cap 3, such as for example its diameter is greater than the external dimension of the container 2, such as for example its diameter, so that the clearance formed by the difference in dimensions, for example in diameters, allows the opening and closing of the cap without impairing the barrier properties to the humidity of the packaging.
- the packaging 1 may include a tamper-evident indicator 4 attesting to the first opening of the packaging 1.
- a tamper-evident indicator 4 is a label stuck or welded between parts of the packaging 1 which is torn or torn off when opening said packaging 1.
- FIG. 2 illustrates the sectional view of a packaging embodiment 1 according to the invention.
- the container 2 comprises a tubular wall 6 and a bottom 7.
- the tubular wall 6 is preferably cylindrical in geometry but many other geometries can be envisaged in the context of the present invention such as tubular bodies of oval or rectangular or other section, like for example oblong etc.
- the bottom 7 is preferably fixed to the tubular wall 6 by welding or gluing.
- the cap 3 is similar to the container composed of a tubular wall 8 and a bottom 9 fixed by welding or gluing to the tubular wall 8.
- the sectional view of the packaging 1 illustrated figure 2 shows the sliding length 5 of the tubular wall 8 of the cap and of the tubular wall 6 of the container.
- FIG. 1 A detailed view of the sliding zone 10 between the cap 3 and the container 2 is illustrated in figures 3 to 5 .
- FIG 2 illustrates a mode of execution with a cover 11 (which is optional) welded to the end of the wall 6 of the container 2 and which can serve as a tamper-evident indicator (in place of the label 4 illustrated figure 1 or in addition to said label 4) and which can also improve the impermeability of the packaging 1 to water vapor before its first opening.
- the examples of packaging 1 illustrated figures 1 And 2 are based on cellulose with a cellulose rate greater than 70%, preferably greater than 85% and advantageously greater than 90% and can therefore be recycled in the paper industry.
- the packaging 1 based on cellulose according to the invention formed of a container 2 and a sliding cover 3 was compared to a packaging formed of the container 2, the end of which is closed by welding a watertight cover. 'humidity. Surprisingly, it was determined that despite the clearance between the cap and the container which means that the packaging is not airtight, such packaging according to the invention presents, under certain conditions, barrier properties. to water vapor equivalent or even improved compared to completely sealed packaging.
- the radial clearance between the external wall of the container 2 and the internal wall of the cap 3 must be between 0.02mm and 0.5mm and preferably between 0.05mm and 0.25mm.
- the H/D ratio where H is the sliding length and D is the external dimension of the container 2 (for example its external diameter) is greater than 1 and preferably greater than 2.
- the external dimension of the container 2 and the internal dimension of the cap 3 correspond to the respective diameters of the container and the cap.
- the container 2 and the cap 3 have a section of non-cylindrical shape (as for example oval, oblong, square, rectangular or other), we define for the container 2 and the cap 3 an "equivalent cylinder" whose perimeter is equal to the perimeter of the section (whatever its shape) of said container 2 and said cap 3 considered and we use as dimension the diameter (external/internal) of each “equivalent cylinder” determined in this way.
- FIG. 3 illustrates an example of packaging 1 in the sliding zone 10.
- the container 2 comprises a wall 6 formed of at least one structural layer 6a based on cellulose and a functional layer 6b of fine thickness providing barrier properties to the water vapour.
- the cap 3 comprises a wall 8 formed of at least one structural layer 8a based on cellulose and a thin functional layer 8b providing moisture barrier properties.
- the functional layers 6b and 8b are for example made of high density polyethylene (HDPE) or polypropylene (PP) or other equivalent materials.
- the thickness of the functional layers 6b and 8b is sufficiently low so that the mass content of cellulose in the part concerned (container 2 or cap 3) is greater than 70%.
- the functional layer 8b forming the internal surface of the tubular body 8 of the cap 3 slides on the structural layer 6a based on cellulose forming the external surface of the tubular body 6 of the container 2.
- a clearance between the layer 8b of the cap and the layer 6a of the container is necessary for easy opening and closing of the container.
- the values of this clearance as well as the sliding height 5 formed by the superposition of the cap and the container determine the tightness of the packaging to water vapor. These values are for example those mentioned above in accordance with the determinations of the present invention.
- FIG 4 illustrates another embodiment of the packaging structure at the level of the sliding zone 10.
- the functional layer 8b forming the internal surface of the tubular body 8 of the cap 3 slides on the functional layer 6b forming the external surface of the tubular body 6 of the container 2.
- a clearance between the layer 8b of the cap and the layer 6b of the container is necessary for easy opening and closing of the container.
- the values of this clearance as well as the sliding height 5 formed by the superposition of the cap and the container determine the tightness of the packaging to water vapor and are for example those mentioned above in accordance with the determinations of the present invention.
- FIG. 5 illustrates another embodiment of the packaging structure at the level of the sliding zone 10.
- the structural layer 6a of the container is trapped between a first functional layer 6b forming the external surface and a second functional layer 6c forming the internal surface of the tubular body of the container 2.
- the functional layer 8b forming the internal surface of the tubular body 8 of the cap 3 slides on the functional layer 6b forming the external surface of the tubular body 6 of the container 2.
- a clearance between the layer 8b of the cap and the layer 6b of the container is necessary for easy opening and closing of the container 6.
- the values of this clearance as well as the sliding height 5 formed by the superposition of the cap and the container determine the tightness of the packaging to water vapor and are for example those mentioned above in accordance with the determinations of the present invention.
- FIG. 6 illustrates a preferred embodiment of the tubular bodies 6 of the container 2 and 8 of the cap 3.
- the tubular bodies are made from a sheet and the edges are welded or glued and form an assembly zone 12.
- the ends of the sheet are butt welded using reinforcing strips as described in the publications EP2007567 , EP2004389 , EP2004506 And EP26030052 .
- the edges of the sheet are welded or glued by covering its ends.
- THE figures 7 to 9 illustrate embodiments of assembling a bottom 7 or 9 and a tubular body 6 or 8 to form a container 2 or a cap 3 also showing the continuity of the functional layer 6b/8b/7b/9b in the assembly area to obtain good barrier properties of the final product.
- FIG. 7 illustrates the assembly of a bottom 7 on a tubular body 6 to form a container 2.
- the functional layer 7b of the bottom forming the external surface of the container 2
- the Figure 7 also illustrates the assembly of a bottom 9 on a tubular body 8 to form a plug 3.
- the functional layer 9b of the bottom forming the external surface of the plug 3
- the welding of the respective functional layers 6b/7b and 8b/9b ensures the continuity of said functional layers.
- FIG 8 illustrates another embodiment of assembling a bottom 7 and a tubular body 6 or 8 to form a container 2 or a cap 3.
- the figure 8 illustrates the continuity of the functional layers 6b/7b and 8b/9b in the assembly zone of the bottom 7 and the tubular body 6/8 to obtain good barrier properties of the final product.
- There figure 8 illustrates the assembly of a bottom 7 on a tubular body 6 to form a container 2.
- the functional layer 7b of the bottom forming the internal surface of the container 2
- the figure 8 illustrates the assembly of a bottom 9 on a tubular body 8 to form a plug 3.
- the layer functional layer 9b of the bottom forming the internal surface of the plug 3 is welded to the functional layer 8b of the tubular body forming the external surface of the plug 3.
- FIG. 9 illustrates another embodiment of assembling a bottom and a tubular body to form a container 2 or a cap 3.
- the Figure 9 illustrates the continuity of the functional layer in the assembly zone to obtain good barrier properties of the final product.
- FIG 9 illustrates the assembly of a bottom 7 on a tubular body 6 to form a container 2.
- the functional layer 7b of the bottom forming the internal surface of the container 2 is welded to the functional layer 6b of the tubular body forming the surface internal container 2.
- the figure 8 also illustrates the assembly of a bottom 9 on a tubular body 8 to form a cap 3.
- the functional layer 9b of the bottom forming the internal surface of the cap 3 is welded to the functional layer 8b of the tubular body forming the internal surface of the cap 3.
- FIG. 10 illustrates another embodiment of packaging in the sliding zone 10.
- the cap 3 has a flared end 14 to facilitate the insertion of the cap 3 on the container 2.
- the flare zone in which the clearance between the internal wall of the cap and the external wall of the container varies) is not to be taken into account to define the sliding length 5 which guarantees good barrier properties to water vapor.
- An alternative to the solution illustrated on the Figure 10 to facilitate the insertion of the cap 3 consists of contracting the end of the container 2 on which the cap 3 fits.
- FIG. 11 illustrates the packaging according to the invention comprising air exhaust or air inlet means 13 to facilitate opening and closing of the packaging.
- these means 13 are added at the level of the cap 3.
- the means 13 are for example a valve allowing air to pass when the pressure difference between the inside and the outside of the packaging passes a threshold value.
- the means 13 are an orifice, obstructed by a peelable-repositionable label, which the user opens while opening or closing the packaging.
- the packaging compared on the Figure 12 all have a cylindrical container 2 with a diameter D equal to 50mm and a height equal to 250mm. These packaging are made with a multi-layer structure as illustrated in the Figure 3 .
- the structural layers based on cellulose of the container 2 and the cap 3 denoted respectively 6a and 8a have a mass of 265g/m 2 and the functional layers based on polyethylene denoted respectively 6b and 8b have a mass of 18g/m2.
- the cellulose rate in these packaging is 93.6%.
- the “Ech-1” packaging which serves as a reference has a water vapor permeability of 0.129 g/(pack. journey.bar).
- the “Ech-2” packaging which corresponds to one embodiment of the invention has a water vapor permeability of 0.118 g (pack.day.bar) or 91% of the value of the sealed packaging noted “Ech-1”.
- the “Ech-3” packaging which corresponds to one embodiment of the invention has a water vapor permeability of 0.127 g (pack.day.bar) or 98% of the value of the sealed packaging noted “Ech-1”.
- the “Ech-4” packaging which corresponds to one embodiment of the invention has a water vapor permeability of 0.142 g (pack. journey.bar) or 110% of the value of the sealed packaging noted “Ech-1”.
- the “Ech-4” packaging whose sliding value 5 is too low (10mm) has a water vapor permeability of 0.222 g (pack.day.bar) or 172% of the value of the sealed packaging noted “Ech-1”.
- modes of execution described in this application are by way of illustrative examples and should not be considered limiting. Other modes of execution may use means equivalent to those described for example. The modes of execution can also be combined with each other depending on the circumstances, or the means or technical characteristics used in one mode can be used in another mode.
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Abstract
L'invention concerne un emballage (1) comprenant un premier corps formant un récipient (2) et un deuxième corps formant un bouchon (3), ledit récipient (2) et ledit bouchon (3) présentant des propriétés barrière à l'humidité au niveau de leur paroi (6,8) respectives. Le bouchon (3) a une dimension interne supérieure à la dimension externe du récipient (2) et coulisse sur une partie au moins de la surface externe du récipient définissant une longueur de coulissement (5) lors de l'ouverture ou de la fermeture de l'emballage. Le jeu créé par la différence desdits diamètres permet l'ouverture et la fermeture sans péjorer les propriétés barrière à l'humidité de l'emballage (1).The invention relates to a package (1) comprising a first body forming a container (2) and a second body forming a cap (3), said container (2) and said cap (3) having moisture barrier properties at level of their respective wall (6,8). The cap (3) has an internal dimension greater than the external dimension of the container (2) and slides on at least part of the external surface of the container defining a sliding length (5) when opening or closing the container. the packaging. The clearance created by the difference in said diameters allows opening and closing without impairing the moisture barrier properties of the packaging (1).
Description
L'invention se situe dans le domaine des emballages à base de matériaux biosourcés ou/et biodégradables ou/et recyclables. Elle concerne plus précisément des emballages ayant un impact environnemental réduit. L'invention s'applique aux emballages cylindriques nécessitant de bonnes propriétés barrières à l'humidité. L'invention s'applique en particulier aux emballages à base de cellulose. L'invention se positionne notamment dans le domaine des emballages pour produits secs.The invention lies in the field of packaging based on biosourced and/or biodegradable and/or recyclable materials. It concerns more specifically packaging with a reduced environmental impact. The invention applies to cylindrical packaging requiring good moisture barrier properties. The invention applies in particular to cellulose-based packaging. The invention is particularly positioned in the field of packaging for dry products.
L'invention se situe dans le domaine de l'emballage et en particulier celui des emballages tubulaires à base de matériaux biosourcés ou biodégradables ou recyclables pour conserver des produits secs. Selon un mode de réalisation préférentiel, l'emballage est à base de cellulose et peut être recyclé dans la filière papier. L'emballage comprend au moins un récipient et un bouchon qui coulisse sur ledit récipient et l'emballage conserve de bonnes propriétés barrière à l'humidité pendant toute sa durée de vie.The invention lies in the field of packaging and in particular that of tubular packaging based on biosourced or biodegradable or recyclable materials for preserving dry products. According to a preferred embodiment, the packaging is based on cellulose and can be recycled in the paper industry. The packaging comprises at least one container and a cap which slides on said container and the packaging maintains good moisture barrier properties throughout its lifespan.
L'invention concerne plus spécifiquement un emballage tubulaire comprenant un récipient et un bouchon ajusté et coulissant sur la surface externe du récipient sur une hauteur dite "hauteur d'étanchéité". Plus précisément et dans des modes d'exécution, l'invention concerne un emballage formé de deux corps tubulaires de diamètre légèrement différent, l'un desdits corps formant le récipient, et l'autre desdits corps formant le bouchon. Selon l'invention, le bouchon est de diamètre légèrement supérieur à celui du récipient et il s'emboite et coulisse sur la surface externe du récipient avec un jeu nécessaire à l'ouverture fermeture. En position fermée de l'emballage, la paroi du bouchon se superpose à la paroi du récipient sur une hauteur d'étanchéité qui garantit la barrière à l'humidité de l'emballage, même après une première ouverture ou une ouverture subséquente de l'emballage.The invention relates more specifically to a tubular packaging comprising a container and a cap fitted and sliding on the external surface of the container over a height called "sealing height". More precisely and in embodiments, the invention relates to a packaging formed of two tubular bodies of slightly different diameter, one of said bodies forming the container, and the other of said bodies forming the cap. According to the invention, the cap has a diameter slightly greater than that of the container and it fits and slides on the external surface of the container with the clearance necessary for opening and closing. In the closed position of the packaging, the wall of the cap is superimposed on the wall of the container at a sealing height which guarantees the moisture barrier of the packaging, even after a first or subsequent opening of the packaging.
Selon l'invention, le récipient et le bouchon sont à base de matériaux biosourcés ou biodégradables ou recyclables et comprennent au moins une couche apportant des propriétés barrières à l'humidité.According to the invention, the container and the cap are based on biosourced or biodegradable or recyclable materials and comprise at least one layer providing moisture barrier properties.
Selon le mode préférentiel de réalisation de l'invention, le récipient et le bouchon sont à base de cellulose et comprennent au moins une couche structurelle à base de cellulose une couche fonctionnelle apportant des propriétés barrières à l'humidité.According to the preferred embodiment of the invention, the container and the cap are based on cellulose and comprise at least one structural layer based on cellulose, a functional layer providing moisture barrier properties.
Etonnamment, il a été démontré qu'un emballage tubulaire à base de cellulose formé d'un récipient et d'un bouchon qui s'emboite et coulisse sur la paroi externe du récipient selon les principes de la présente invention peut, dans certaines conditions développées dans la suite de la présente description, présenter des propriétés barrière identiques voire améliorées par rapport au même récipient qui serait fermé par un bouchon scellé.Surprisingly, it has been demonstrated that a tubular packaging based on cellulose formed of a container and a cap which fits and slides on the external wall of the container according to the principles of the present invention can, under certain conditions developed in the remainder of this description, present identical or even improved barrier properties compared to the same container which would be closed by a sealed cap.
Plus spécifiquement, il a été démontré que, pour apporter les propriétés barrière améliorées mentionnées ci-dessus, le jeu radial entre le diamètre extérieur du récipient et le diamètre intérieur du bouchon doit être compris entre 0,05 mm et 0,25 mm et de préférence entre 0,1 mm et 0,2mm.More specifically, it has been demonstrated that, to provide the improved barrier properties mentioned above, the radial clearance between the outer diameter of the container and the inner diameter of the cap must be between 0.05 mm and 0.25 mm and preferably between 0.1mm and 0.2mm.
De même, il a été démontré que la longueur d'étanchéité (soit la longueur de l'emboitement entre le récipient et le bouchon) doit être supérieure à 50mm et de préférence supérieure à 100mm.Likewise, it has been demonstrated that the sealing length (i.e. the length of the fit between the container and the cap) must be greater than 50mm and preferably greater than 100mm.
Selon l'invention, l'emballage est à base de matériaux recyclables ou biodégradables et/ou issus de ressources renouvelables. Selon un mode de réalisation préférentiel de l'invention, l'emballage est à base de cellulose et peut être recyclé en fin de vie dans la filière papier. Préférentiellement, le taux de cellulose de l'emballage est supérieur à 85% et avantageusement supérieur à 90%. De préférence, le taux de cellulose de l'emballage et celui du bouchon sont identiques ou proches. Dans un autre mode d'exécution, ces taux peuvent être différents.According to the invention, the packaging is based on recyclable or biodegradable materials and/or from renewable resources. According to a preferred embodiment of the invention, the packaging is based on cellulose and can be recycled at the end of its life in the paper industry. Preferably, the rate of cellulose of the packaging is greater than 85% and advantageously greater than 90%. Preferably, the cellulose content of the packaging and that of the cap are identical or close. In another mode of execution, these rates may be different.
Selon l'invention, l'emballage peut comporter également des moyens d'entrée et d'évacuation d'air qui facilitent l'ouverture et la fermeture de l'emballage. Les moyens d'entrée et d'évacuation d'air sont avantageusement liés au bouchon, mais pas exclusivement.According to the invention, the packaging may also include air entry and exhaust means which facilitate the opening and closing of the packaging. The air inlet and outlet means are advantageously linked to the cap, but not exclusively.
Selon l'invention, l'emballage peut comporter également des moyens d'inviolabilité qui attestent la première ouverture de l'emballage.According to the invention, the packaging may also include tamper-evident means which attest to the first opening of the packaging.
Dans des modes d'exécution, l'invention concerne un emballage comprenant au moins un premier corps formant un récipient et un deuxième corps formant un bouchon, le récipient et le bouchon présentant des propriétés barrière à l'humidité au niveau de leur parois respectives, le bouchon ayant une dimension interne supérieure à la dimension externe du récipient et coulissant sur une partie au moins de la surface externe du récipient en définissant une longueur de coulissement lors de l'ouverture ou de la fermeture de l'emballage, le jeu créé par la différence desdites dimensions permettant ladite ouverture et ladite fermeture sans péjorer les propriétés barrière à l'humidité de l'emballage.In embodiments, the invention relates to packaging comprising at least a first body forming a container and a second body forming a cap, the container and the cap having moisture barrier properties at their respective walls, the cap having an internal dimension greater than the external dimension of the container and sliding on at least part of the external surface of the container defining a sliding length when opening or closing the package, the clearance created by the difference in said dimensions allowing said opening and said closing without impairing the moisture barrier properties of the packaging.
Dans des modes d'exécution, le jeu est de préférence compris entre 0.02mm et 0,5mm.In execution modes, the clearance is preferably between 0.02mm and 0.5mm.
Dans des modes d'exécution, un rapport H/D est supérieur à 1, de préférence supérieur à 2, H étant la longueur de coulissement et D la dimension externe du récipient.In embodiments, an H/D ratio is greater than 1, preferably greater than 2, H being the sliding length and D the external dimension of the container.
Dans des modes d'exécution, le récipient et le bouchon comprennent chacun un fond.In embodiments, the container and the cap each include a bottom.
Dans des modes d'exécution, le récipient et/ou le bouchon et/ou le fond comprennent une couche structurelle et une couche fonctionnelle apportant des propriétés barrière à la vapeur d'eau.In embodiments, the container and/or the cap and/or the bottom comprise a structural layer and a functional layer providing water vapor barrier properties.
Dans des modes d'exécution, la couche structurelle est à base de cellulose avec un taux de cellulose de préférence supérieur à 70%.In embodiments, the structural layer is based on cellulose with a cellulose content preferably greater than 70%.
Dans des modes d'exécution, la couche fonctionnelle est en polyéthylène haute densité (HDPE) ou polypropylène (PP). D'autres matières ou mélanges de matières équivalentes sont possibles.In embodiments, the functional layer is made of high density polyethylene (HDPE) or polypropylene (PP). Other materials or mixtures of equivalent materials are possible.
Dans des modes d'exécution, la couche fonctionnelle formant la surface interne du bouchon coulisse sur la couche structurelle formant la surface externe du récipient.In embodiments, the functional layer forming the internal surface of the cap slides on the structural layer forming the external surface of the container.
Dans des modes d'exécution, la couche fonctionnelle formant la surface interne du bouchon coulisse sur la couche fonctionnelle formant la surface externe du récipient.In embodiments, the functional layer forming the internal surface of the cap slides on the functional layer forming the external surface of the container.
Dans des modes d'exécution, la couche structurelle du récipient est emprisonnée entre une première couche fonctionnelle formant la surface externe et une seconde couche fonctionnelle formant la surface interne du récipient.In embodiments, the structural layer of the container is trapped between a first functional layer forming the outer surface and a second functional layer forming the inner surface of the container.
Dans des modes d'exécution, le bouchon comprend une extrémité évasée pour faciliter l'insertion du bouchon sur le récipient. Dans des modes d'exécution, l'extrémité du récipient sur laquelle vient s'emboiter le bouchon comprend une contraction. Un évasement et une contraction peuvent aussi être utilisés sur un même emballage.In embodiments, the cap includes a flared end to facilitate insertion of the cap onto the container. In embodiments, the end of the container on which the cap fits comprises a contraction. A flare and a contraction can also be used on the same package.
Dans des modes d'exécution, l'emballage comprend un système d'inviolabilité attestant une ouverture de l'emballage, par exemple la première ouverture de l'emballage.In embodiments, the packaging includes a tamper-evident system attesting to an opening of the packaging, for example the first opening of the packaging.
Dans des modes d'exécution, l'emballage comprend un opercule fixé à l'extrémité du récipient. L'opercule peut former un système d'inviolabilité ou en être une partie.In embodiments, the packaging includes a cover attached to the end of the container. The cover can form a tamper-evident system or be part of it.
Dans des modes d'exécution, l'emballage comprend des moyens d'échappement d'air ou d'entrée d'air pour faciliter l'ouverture et la fermeture de l'emballage.In embodiments, the packaging includes air exhaust or air inlet means to facilitate opening and closing of the packaging.
Dans des modes d'exécution, l'emballage a une section de forme circulaire ovale, oblongue ou rectangulaire. D'autres formes sont bien entendu possibles.In embodiments, the packaging has a section of circular oval, oblong or rectangular shape. Other forms are of course possible.
Dans des modes d'exécution, le récipient et/ou le bouchon sont formés à partir de corps tubulaires (ou d'une autre forme) confectionnés à partir d'une feuille dont les bords sont soudés ou collés et forment une zone d'assemblage.In embodiments, the container and/or the cap are formed from tubular bodies (or another shape) made from a sheet whose edges are welded or glued and form an assembly zone .
Dans des modes d'exécution, les extrémités de la feuille sont soudées bout à bout par l'intermédiaire de bandes de renfort, ou soudés ou collés par recouvrement des extrémités.In embodiments, the ends of the sheet are welded end to end via reinforcing strips, or welded or glued by covering the ends.
-
Les
figures 1 à 12 illustrent l'invention concernant un emballage barrière à l'humidité présentant un bouchon coulissant.THEfigures 1 to 12 illustrate the invention relating to a moisture barrier packaging having a sliding cap. -
La
figure 1 illustre le concept de l'invention.Therefigure 1 illustrates the concept of the invention. -
Les
figures 3 à 5 illustrent la zone coulissante entre le récipient et le bouchon.THEfigures 3 to 5 illustrate the sliding area between the container and the cap. -
La
figure 3 illustre un premier exemple de la zone coulissante selon lequel la couche fonctionnelle du bouchon coulisse sur la couche structurelle du récipient.ThereFigure 3 illustrates a first example of the sliding zone according to which the functional layer of the cap slides on the structural layer of the container. -
La
figure 4 illustre un deuxième exemple de la zone coulissante.ThereFigure 4 illustrates a second example of the sliding zone. -
La
figure 5 illustre un troisième exemple de la zone coulissante.ThereFigure 5 illustrates a third example of the sliding zone. -
La
figure 6 illustre un exemple de confection de corps tubulaire pour un récipient ou un fond.ThereFigure 6 illustrates an example of making a tubular body for a container or a base. -
Les
figure 7 à 9 illustrent des exemples d'assemblage du fond sur le corps tubulaire pour le récipient ou pour le bouchon.THEfigure 7 to 9 illustrate examples of assembling the bottom on the tubular body for the container or for the cap. -
La
figure 7 illustre l'assemblage de la couche interne du corps tubulaire sur la face externe du bouchon.ThereFigure 7 illustrates the assembly of the internal layer of the tubular body on the external face of the cap. -
La
figure 8 illustre l'assemblage de la couche externe du corps tubulaire sur la couche interne du fond.Therefigure 8 illustrates the assembly of the outer layer of the tubular body on the inner layer of the bottom. -
La
figure 9 illustre l'assemblage de la couche interne du corps tubulaire sur la couche interne du fond.ThereFigure 9 illustrates the assembly of the internal layer of the tubular body on the internal layer of the bottom. -
La
figure 10 illustre une extrémité évasée du bouchon pour faciliter l'insertion du bouchon sur le récipient.ThereFigure 10 illustrates a flared end of the cap to facilitate insertion of the cap onto the container. -
La
figure 11 illustre l'emballage selon l'invention avec des moyens d'échappement d'air au niveau du couvercle pour faciliter l'ouverture et la fermeture de l'emballage.ThereFigure 11 illustrates the packaging according to the invention with air exhaust means at the level of the cover to facilitate opening and closing of the packaging. -
La
figure 12 illustre la comparaison des propriétés barrières à la vapeur d'eau d'emballages réalisés selon l'invention avec un emballage dont le bouchon est scellé.ThereFigure 12 illustrates the comparison of the water vapor barrier properties of packaging produced according to the invention with packaging whose cap is sealed.
- 1 : emballage1: packaging
- 2 : corps tubulaire formant un récipient2: tubular body forming a container
- 3 : corps tubulaire formant un bouchon coulissant3: tubular body forming a sliding plug
- 4 : système d'inviolabilité4: inviolability system
- 5 : longueur coulissante5: sliding length
- 6 : paroi tubulaire du récipient6: tubular wall of the container
- 6a : couche structurelle6a: structural layer
- 6b : couche fonctionnelle6b: functional layer
- 6c : couche fonctionnelle6c: functional layer
- 7 : fond du récipient7: bottom of the container
- 7a : couche structurelle7a: structural layer
- 7b : couche fonctionnelle7b: functional layer
- 8 : paroi tubulaire du bouchon8: tubular wall of the cap
- 8a : couche structurelle8a: structural layer
- 8b : couche fonctionnelle8b: functional layer
- 9 : fond du bouchon9: bottom of the cap
- 9a : couche structurelle9a: structural layer
- 9b couche fonctionnelle9b functional layer
- 10 : zone coulissante10: sliding area
- 11 : opercule11: cover
- 12 : zone d'assemblage de la feuille12: sheet assembly area
- 13 : moyens d'échappement d'air13: air exhaust means
- 14 : extrémité évasée14: flared end
La
La
Selon un mode préférentiel de l'invention, les exemples d'emballage 1 illustrés
L'emballage 1 à base de cellulose selon l'invention formé d'un récipient 2 et d'un couvercle coulissant 3 a été comparé à un emballage formé du récipient 2 dont l'extrémité est fermée par soudage d'un opercule étanche à l'humidité. De façon surprenante, il a été déterminé que malgré le jeu entre le bouchon et le récipient qui fait que l'emballage n'est pas étanche à l'air, un tel emballage selon l'invention présente, selon certaines conditions, des propriétés barrières à la vapeur d'eau équivalentes voire améliorées par rapport à l'emballage totalement scellé.The
En particulier et afin de réaliser cet effet d'amélioration, il a été déterminé que le jeu radial entre la paroi externe du récipient 2 et la paroi interne du bouchon 3 doit être compris entre 0.02mm et 0,5mm et de préférence entre 0.05mm et 0,25mm.In particular and in order to achieve this improvement effect, it has been determined that the radial clearance between the external wall of the
De même, le rapport H/D, où H est la longueur de coulissement et D est la dimension externe du récipient 2 (par exemple son diamètre externe) est supérieur à 1 et de préférence supérieur à 2. Dans le cas où le récipient 2 et le bouchon 3 ont une section de forme cylindrique, la dimension externe du récipient 2 et la dimension interne du bouchon 3 correspondent aux diamètres respectifs du récipient et du bouchon. Dans le cas où le récipient 2 et le bouchon 3 ont une section de forme non-cylindrique (comme par exemple ovale, oblongue, carrée, rectangulaire ou autre), on définit pour le récipient 2 et le bouchon 3 un "cylindre équivalent" dont le périmètre est égal au périmètre de la section (quelle que soit sa forme) dudit récipient 2 et dudit bouchon 3 considéré et on utilise comme dimension le diamètre (externe/interne) de chaque "cylindre équivalent" déterminé de cette façon.Likewise, the H/D ratio, where H is the sliding length and D is the external dimension of the container 2 (for example its external diameter) is greater than 1 and preferably greater than 2. In the case where the
Par exemple, pour un récipient de diamètre externe de 50mm, la longueur de coulissement 5 est supérieure à 50mm (rapport H/D = 1) et de préférence supérieure à 100mm (rapport H/D = 2).For example, for a container with an external diameter of 50mm, the sliding
La
Dans le mode d'exécution de la
La
La
Dans le mode d'exécution illustré
La
Les
La
La
La
La
Une alternative à la solution illustrée sur la
La
La
- L'emballage noté «Ech-1 » est fermé par un opercule soudé et sert de référence.
- L'emballage noté «Ech-2 » est fermé par un bouchon recouvrant le récipient sur une longueur coulissante 5 égale à 150mm avec un jeu radial égal à 0,1mm.
- L'emballage noté «Ech-3 » est fermé par un bouchon recouvrant le récipient sur une longueur coulissante 5 égale à 100mm avec un jeu radial égal à 0,1mm.
- L'emballage noté «Ech-4 » est fermé par un bouchon recouvrant le récipient sur une longueur coulissante 5 égale à 50mm avec un jeu radial égal à 0,1mm.
- L'emballage noté «Ech-5 » est fermé par un bouchon recouvrant le récipient sur une longueur coulissante 5 égale à 10mm avec un jeu radial égal à 0,1mm.
- The packaging marked “Ech-1” is closed by a welded lid and serves as a reference.
- The packaging denoted “Ech-2” is closed by a cap covering the container over a sliding
length 5 equal to 150mm with a radial clearance equal to 0.1mm. - The packaging denoted “Ech-3” is closed by a cap covering the container over a sliding
length 5 equal to 100mm with a radial clearance equal to 0.1mm.- The packaging denoted “Ech-4” is closed by a cap covering the container over a sliding
length 5 equal to 50mm with a radial clearance equal to 0.1mm. - The packaging marked “Ech-5” is closed by a cap covering the container over a sliding
length 5 equal to 10mm with a radial clearance equal to 0.1mm.
- The packaging denoted “Ech-4” is closed by a cap covering the container over a sliding
Les emballages comparés sur la
L'emballage «Ech-1 » qui sert de référence présente une perméabilité à la vapeur d'eau de 0,129 g/(pack.jour.bar).The “Ech-1” packaging which serves as a reference has a water vapor permeability of 0.129 g/(pack.jour.bar).
L'emballage «Ech-2 » qui correspond à un mode d'exécution de l'invention présente une perméabilité à la vapeur d'eau de 0,118 g(pack.jour.bar) soit 91% de la valeur de l'emballage scellé noté «Ech-1 ».The “Ech-2” packaging which corresponds to one embodiment of the invention has a water vapor permeability of 0.118 g (pack.day.bar) or 91% of the value of the sealed packaging noted “Ech-1”.
L'emballage «Ech-3 » qui correspond à un mode d'exécution de l'invention présente une perméabilité à la vapeur d'eau de 0,127 g(pack.jour.bar) soit 98% de la valeur de l'emballage scellé noté «Ech-1 ».The “Ech-3” packaging which corresponds to one embodiment of the invention has a water vapor permeability of 0.127 g (pack.day.bar) or 98% of the value of the sealed packaging noted “Ech-1”.
L'emballage «Ech-4 » qui correspond à un mode d'exécution de l'invention présente une perméabilité à la vapeur d'eau de 0,142 g(pack.jour.bar) soit 110% de la valeur de l'emballage scellé noté «Ech-1 ».The “Ech-4” packaging which corresponds to one embodiment of the invention has a water vapor permeability of 0.142 g (pack.jour.bar) or 110% of the value of the sealed packaging noted “Ech-1”.
L'emballage «Ech-4 » dont la valeur coulissante 5 est trop faible (10mm) présente une perméabilité à la vapeur d'eau de 0,222 g(pack.jour.bar) soit 172% de la valeur de l'emballage scellé noté «Ech-1 ».The “Ech-4” packaging whose sliding
Les modes d'exécution décrits dans la présente demande le sont à titre d'exemples illustratifs et ne doivent pas être considérés comme limitatifs. D'autres modes d'exécution peuvent faire appel à des moyens équivalents à ceux décrits par exemple. Les modes d'exécution peuvent également être combinés entre eux en fonction des circonstances, ou des moyens ou caractéristiques techniques utilisés dans un mode peuvent être utilisés dans un autre mode.The modes of execution described in this application are by way of illustrative examples and should not be considered limiting. Other modes of execution may use means equivalent to those described for example. The modes of execution can also be combined with each other depending on the circumstances, or the means or technical characteristics used in one mode can be used in another mode.
Claims (17)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22172784.5A EP4276030A1 (en) | 2022-05-11 | 2022-05-11 | Packaging with moisture barrier |
PCT/IB2023/054833 WO2023218371A1 (en) | 2022-05-11 | 2023-05-10 | Moisture-barrier packaging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22172784.5A EP4276030A1 (en) | 2022-05-11 | 2022-05-11 | Packaging with moisture barrier |
Publications (1)
Publication Number | Publication Date |
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EP4276030A1 true EP4276030A1 (en) | 2023-11-15 |
Family
ID=81603632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP22172784.5A Pending EP4276030A1 (en) | 2022-05-11 | 2022-05-11 | Packaging with moisture barrier |
Country Status (2)
Country | Link |
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EP (1) | EP4276030A1 (en) |
WO (1) | WO2023218371A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5348180A (en) * | 1993-11-12 | 1994-09-20 | Sonoco Products Company | Container having a tamper-evident seal |
EP2004389A2 (en) | 2006-04-06 | 2008-12-24 | Aisapack Holding SA | Packaging tubular body made of thermoplastic material with embedded strip |
EP2004506A2 (en) | 2006-04-06 | 2008-12-24 | Aisapack Holding SA | Flexible multilayer structure for tubes |
EP2007567A2 (en) | 2006-04-06 | 2008-12-31 | Aisapack Holding SA | Package formed by a butt-sealed film |
US20130153586A1 (en) * | 2010-08-23 | 2013-06-20 | Nestec S.A. | Package for ice cream |
JP2021137982A (en) * | 2020-03-02 | 2021-09-16 | 凸版印刷株式会社 | Double-sided laminated paper and paper cup |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR772884A (en) * | 1934-05-04 | 1934-11-07 | Container of molded plastic, wood or the like, with a tight-fitting lid |
-
2022
- 2022-05-11 EP EP22172784.5A patent/EP4276030A1/en active Pending
-
2023
- 2023-05-10 WO PCT/IB2023/054833 patent/WO2023218371A1/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5348180A (en) * | 1993-11-12 | 1994-09-20 | Sonoco Products Company | Container having a tamper-evident seal |
EP2004389A2 (en) | 2006-04-06 | 2008-12-24 | Aisapack Holding SA | Packaging tubular body made of thermoplastic material with embedded strip |
EP2004506A2 (en) | 2006-04-06 | 2008-12-24 | Aisapack Holding SA | Flexible multilayer structure for tubes |
EP2007567A2 (en) | 2006-04-06 | 2008-12-31 | Aisapack Holding SA | Package formed by a butt-sealed film |
US20130153586A1 (en) * | 2010-08-23 | 2013-06-20 | Nestec S.A. | Package for ice cream |
JP2021137982A (en) * | 2020-03-02 | 2021-09-16 | 凸版印刷株式会社 | Double-sided laminated paper and paper cup |
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