US20140203048A1 - Packaging with a spout for flowable products - Google Patents
Packaging with a spout for flowable products Download PDFInfo
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- US20140203048A1 US20140203048A1 US14/236,570 US201214236570A US2014203048A1 US 20140203048 A1 US20140203048 A1 US 20140203048A1 US 201214236570 A US201214236570 A US 201214236570A US 2014203048 A1 US2014203048 A1 US 2014203048A1
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- United States
- Prior art keywords
- container
- container according
- dispensing
- opening
- deformable
- 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.)
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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
- B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
- B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
- B65D35/36—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices for applying contents to surfaces
- B65D35/38—Nozzles
-
- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/32—Containers adapted to be temporarily deformed by external pressure to expel 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
- B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
- B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
- B65D35/28—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices for expelling 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
- B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
- B65D35/44—Closures
-
- 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
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
-
- 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
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
- B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
-
- 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
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the 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
- B65D2401/00—Tamper-indicating means
- B65D2401/15—Tearable part of the closure
Definitions
- the present invention concerns a container for flowable products, comprising a dispensing spout with openings which prevent leakage when said openings are not closed.
- “flowable” is meant to encompass liquid, or semi-liquid products, having a viscosity below 1 Pa ⁇ s at 20° C.
- the container of the present invention is particularly advantageous for containing edible products.
- the scope of the present invention is not exclusively limited to such edible products, and can also apply to non-edible products such as fabric and home care products, such as bleach, fabric care liquid products, household detergents.
- Viscosity of fluids with variable compositions Viscosity Viscosity Fluid [Pa ⁇ s] [cP] honey 2-10 2,000-10,000 molasses 5-10 5,000-10,000 molten glass 10-1,000 10,000-1,000,000 chocolate syrup 10-25 10,000-25,000 molten chocolate* 45-130 [21] 45,000-130,000 ketchup* 50-100 50,000-100,000 peanut butter* c. 250 c. 250,000 shortening* c. 250 250,000
- packaging solutions typically comprise containers with a dispensing mouth that is reclosable with a closure elements, like a screw cap for instance.
- a closure elements like a screw cap for instance.
- the container is such that when the dispensing mouth is not closed, the contents can be spilled if the container is tilted, or generally if the contents comes in contact with the dispensing mouth. In such case, the contents directly flows out through the dispensing mouth.
- sports closures comprise a dispensing channel which can be closed easily by pushing a closing element which is generally not detachable from the rest of the closure.
- Such sports closures are widely know, and different systems are proposed, for instance push-pull closures, hinged closures, etc.
- Such closures are complex and expensive to manufacture, hence a higher price for the product to the consumer, particularly in case the container is for a nomadic consumption of a product with a limited content volume.
- they require a large amount of material for their different constitutive parts.
- one major drawback is that such sports cap leak if the consumer does not close them.
- valve closures Due to the drawbacks of sports closures, another type of closures was developed which comprise an elastomeric valve, like a slit valve. Such valve closures are reliable and their use in the food packaging industry increases, for instance for packing honey, ketchup, or the like.
- One particular advantage which is of high importance is that such closures do not necessarily require an additional overcap to seal the valve.
- the valve itself is sufficiently resilient to reclose after dispensing, so that even if the container is tilted, the contents in contact with the internal surface of the valve does not leak through. This is a clear consumer benefit.
- the closure body is generally made out of polyethylene or polypropylene
- the slit valve itself is made of a silicon or other similar resilient material, which must be assembled or co-injected with the closure body.
- containers which are single-piece flasks made by extrusion-blowing of a thermoplastic such as polyethylene.
- Such containers comprise a container body, which is manufactured together integrally with a detachable tip. When the tip is torn off by the user, a very tiny dispensing opening is created in the container walls, which allows for dispensing of the contents.
- Such containers are widely used in the pharmaceutical industry, for providing monodoses (unidoses) for instance for local treatment by a collyrium (i.e. eardrops or eyedrops).
- collyrium unidoses containers have an advantage that the contents, although liquid or at least very fluid, does not leak through the dispensing opening even if said contents is in contact with the internal surface of the dispensing opening.
- such a container should allow a sufficient flow rate during dispensing, but at the same time, it should prevent leakage of the contents even when the dispensing opening is not closed by a closure system, and the container is tilted such that the contents is in contact with the internal side of the dispensing opening.
- the present invention provides a container comprising a deformable container body with at least one compartment, for containing a flowable liquid, semi-liquid, or jellified product having a viscosity lower than 1 Pa ⁇ s at 20° C.
- said container having a capacity of at least 10 ml, preferably at least 50 ml, characterized in that the functional cross-section of said at least one opening is fixed and comprised between 0.002 mm 2 and 7 mm 2 , preferably between 0.008 mm 2 and 0.8 mm 2 , more preferably between 0.03 mm 2 and 0.4 mm 2 , and most preferably between 0.07 mm 2 and 0.2 mm 2 , such that said product flows through said opening only after an external force of at least 0.5 kg, preferably at least 1 kg, more preferably at least 3 kg is exerted onto the container body walls which is directed towards the inside of said body.
- cross-section it is meant the cross section of the hollow internal portion of a dispensing opening.
- the deformation applied onto the container body surface is expressed as originated from a force exerted thereon, as it is supposed that the pressure applied onto said surface is evenly distributed across said surface.
- the container comprises a plurality of dispensing openings, whose number is at least 6, preferably at least 12, more preferably at least 18.
- the container further comprises a closure system associated to said spout element.
- said closure system advantageously comprises a manually breakable tamper-evident means.
- Said tamper-evident means can be for instance a laser-scored pre-cutting disposed such that said closure system can be torn-off in order to give access to the container contents through said opening.
- the deformable container body can be a flexible film pouch, or alternatively it can be a plastic bottle with walls having at least one portion whose thickness is lower than 200 microns, preferably lower than 100 microns.
- said bottle is preferably made of PET (polyethylene terephtalate) or PEN (polyethylene naphthalate), and manufactured by a stretch blow-moulding process from a PET, respectively a PEN preform.
- PET polyethylene terephtalate
- PEN polyethylene naphthalate
- said deformable container body can be a bottle comprising deformable at least one accordion-shaped portion with bellows which can be deformed under force.
- each of said at least one dispensing opening can take the form of a channel, having a length comprised between 0.1 and 20 mm, preferably between 0.5 and 10 mm, more preferably between 1 and 7 mm.
- FIG. 1 is schematic profile view of a flexible pouch according to the invention
- FIG. 2 is a schematic profile view of a flexible bottle according to the invention.
- FIG. 3 is a schematic top cut view along A-A of FIGS. 1 and 2 ;
- FIG. 4 is a schematic top cut view similar to FIG. 3 , wherein the dispensing openings have an alternative design to those shown in FIG. 3 ,
- FIGS. 5 a to 5 c are a schematic representation of the closing system
- FIG. 6 represents another embodiment of the closing system.
- the present invention is directed to a container 1 comprising a dispensing opening that is structured and designed such that:
- the container 1 as illustrated in FIG. 1 comprises a deformable container body 2 having one compartment, for containing a flowable liquid, semi-liquid, or jellified product having a viscosity lower than 1 Pa ⁇ s at 20° C.
- the container body shown in FIG. 1 is a flexible film pouch 2 .
- a spout element 3 is attached to the container pouch body 2 .
- the spout element is an injection moulded element made of a thermoplastic such as polyethylene (PE) or polypropylene (PP).
- PE polyethylene
- PP polypropylene
- the spout element comprises a base which is sealed with the film pouch 2 , such that the sealing is leaktight.
- the spout element 3 comprises a plurality of openings which run through the thickness of said spout, so as to establish a fluid communication between the interior of the pouch, and the exterior.
- the functional cross-section of the dispensing openings is fixed and comprised between 0.002 mm 2 and 7 mm 2 , preferably between 0.008 mm 2 and 0.8 mm 2 , more preferably between 0.03 mm 2 and 0.4 mm 2 , and most preferably between 0.07 mm 2 and 0.2 mm 2 , such that said product flows through said opening only after an external force of at least 0.5 kg, preferably at least 1 kg, more preferably at least 3 kg, is exerted onto the container body walls which is directed towards the inside of said body.
- the dispensing openings illustrated in FIG. 3 are straight channels having a circular functional cross section, and having a length of about 15 mm.
- the channels can be curved or comprise angled portions.
- the number of dispensing openings will be chosen according to the viscosity of the product contained in the pouch, and also on the dispensing flow which must be obtained, i.e. depending on the type of use of the contents. For instance the output flow can be slower for viscous products such as culinary sauces for instance, whereas a liquid like mineral water should be able to flow sufficiently rapidly to allow a proper thirst quenching.
- the number of dispensing openings can be a multiple of six, but not necessarily. In the example illustrated in FIG. 3 , the number of dispensing openings is seven.
- the container body is a very thin-walled bottle 5 made for instance of a blow-moulded polyethylene terephtalate (PET) material which is obtained by stretch blow-moulding of an injected preform.
- PET polyethylene terephtalate
- the bottle walls 6 are flexible and can be deformed by hand squeezing. Therefore, the bottle wall thickness is preferably less than 100 ⁇ m.
- the spout element 3 is clipped, sealed, or similarly attached in a leaktight manner to the bottle body.
- the material which is used to manufacture the deformable container body is such that flow rates can be obtained which are sufficient to guarantee a proper dispensing of the product to a consumer, and such flow rates values can be obtained by applying a manual force onto the container body walls which is reasonable, i.e. compatible with use of the container by grown-ups, teenagers, adults and elderly people.
- acceptable flow rates should be comprised within the range of 50-5000 ml/min, preferably 100-1000 ml/min, more preferably 200-500 ml/min.
- reasonable force to be exerted onto the walls of the container body is defined as follows:
- minimal force is comprised within the range of 1-5 kgs, preferably within 2-4 kgs, more preferably it is set at about 3 kgs. With such values, we ensure that for volumes below about 3 litres of very fluid products (e.g. water), flowing does not occur just by gravity, and
- maximal force is comprised within the range of 20-40 kgs, preferably within 25-35 kgs, more preferably it is set at about 30 kgs. According to tests, 30 kgs is a very intense grip to achieve for a teenager or an adult, and certainly not reachable for a baby or a very old person.
- Forces are measured using testing appliance, method and conditions as follows: the pouch is placed on a flat surface; a force is uniformly applied on the pouch by placing different weights on the support plate.
- Examples of flow rates, obtained when different forces are applied onto the surface of the container body, are shown in Table 2 below.
- the product contained in the container body is water, at 20° C. (its viscosity is 1.002 mPa ⁇ s).
- the container body is a flexible pouch having a volume of 250ml, made of a multilayer plastic film having a total thickness of about 150 ⁇ m.
- the dispensing openings have a circular functional cross section (i.e. diameter), similar to the embodiment described above with reference to FIG. 3 .
- the container 1 is similar to the container described above in reference to FIG. 3 , but for the design of the dispensing openings.
- the dispensing openings 9 have a non-circular cross section, more particularly a trapezoidal cross section. All openings are disposed in a star-shaped configuration, as can be seen in FIG. 4 , with their short end turned towards the centre of the star.
- the spout element 3 can be constructed such that it comprises a closing system 7 , which closes the dispensing openings 4 at least at the time of manufacture, filling, and during storage. Then, at the time of dispensing the consumer can remove the closing system 7 by tearing it off, by unclipping, unscrewing, or other similar operation as necessary.
- the closing system 7 is manufactured as an integral distal element of the spout element 3 , such that it can be detached along a weakness line 8 .
- the dispensing spout 3 is as shown in FIG. 3 , i.e. with open dispensing openings, ready for dispensing by squeezing the container body.
- FIGS. 5 a to 5 c are presenting a complete view of the spout element meaning a perspective view of the spout element 3 with the closing system 7 as it is once in place on the container ( FIG. 5 a ), a cross section view of the spout element 3 of FIG. 5 a ( FIG. 5 b ) and a cross section view of the spout element 3 and closing system 7 of FIG. 5 a once the distal closing system 7 has been broken along its weakness line 8 and showing the dispensing openings 4 ( FIG. 5 c ).
- the spout element 3 is manufactured as a two parts component cap having:
- the bi-injected part is preferably made with Polyethylene (PE) Polyethylene Terephtalate (PET) but can be made with other material.
- PE Polyethylene
- PET Polyethylene Terephtalate
- the sealing of the spout element on the container is ensured using the elastic properties of the material.
- the dispensing openings 4 are then accessible and ready for dispensing the product contained in the container to the consumer.
- the spout element is moulded without any holes to ensure good moulding properties.
- the holes are made during the assembly step for example by micro perforation with micro needles or using a laser.
- FIG. 6 presents another embodiment of the invention in which the closing system 7 of the spout element 3 is made of a dual laminated lid 12 comprising two layers 13 a and 13 b.
- the first layer 13 a (top layer) is a peelable layer having protective functions and serves as tamper evidence for the container 1 .
- the first layer 13 a has a grasping tab 14 helping in peeling the first layer 13 a. This first layer 13 a is then defined as the peelable layer.
- the second layer 13 b (bottom layer) is sealed on the container 1 and is perforated with multiples holes as dispensing openings 4 .
- the holes limit the liquid flow of the product as it evacuates out of the container and do not evacuate product under a defined pressure applied on the container.
- This second layer 13 b is then defined as a dispensing layer.
- the holes are of diameter of 0.2 mm and are spaced from each other of about 1 mm. This is only an example and other diameters can be chosen according to the characteristics of the product to evacuate.
- the dual laminated lid 12 is sealed on the container neck after it filing and ensures a seal tightness of the packaging.
- the consumer peels the top layer 13 a off, then disclosing the bottom layer 13 b which stays on the container's neck and presenting the dispensing openings 4 .
- the product is then ready for consumption.
- the spout element is meant to be rigid, it could also be envisaged to apply a soft spout element, made of an elastomeric material, or being a spongy material.
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Abstract
The present invention is directed to a container (1) comprising a deformable container body (2) with at least one compartment, for containing a flowable liquid, semi-liquid, 5 or jellified product having a viscosity lower than 1 Pa·s at 20 C, and at least one dispensing opening (4) for dispensing said product, which is located in a spout element (3), said container having a capacity of at least 10 ml, preferably at least 50 ml, characterized in that the functional cross-section of said at least one opening is fixed and comprised between 0.002 mm2 and 7 mm2., preferably between 0.008 mm2 and 0.8 mm2, more preferably between 0.03 mm2 and 0.4 mm2, and most preferably between 0.07 mm2 and 0.2 mm2, such that said product flows through said opening only after an external force of at least 0.5 kg, preferably at least 1 kg, more preferably at least 3 kg, is exerted onto the container body walls which is directed towards the inside of said body.
Description
- The present invention concerns a container for flowable products, comprising a dispensing spout with openings which prevent leakage when said openings are not closed.
- In the field covered by the present invention, “flowable” is meant to encompass liquid, or semi-liquid products, having a viscosity below 1 Pa·s at 20° C.
- The container of the present invention is particularly advantageous for containing edible products. However, the scope of the present invention is not exclusively limited to such edible products, and can also apply to non-edible products such as fabric and home care products, such as bleach, fabric care liquid products, household detergents.
- A few examples of fluid edible products which can be contained in a container according to the present invention are cited in Table 1 herebelow, together with their corresponding viscosities.
-
TABLE 1 Viscosity of fluids with variable compositions Viscosity Viscosity Fluid [Pa · s] [cP] honey 2-10 2,000-10,000 molasses 5-10 5,000-10,000 molten glass 10-1,000 10,000-1,000,000 chocolate syrup 10-25 10,000-25,000 molten chocolate* 45-130 [21] 45,000-130,000 ketchup* 50-100 50,000-100,000 peanut butter* c. 250 c. 250,000 shortening* c. 250 250,000 - For nomadic consumption of flowable products, in particular food edible products, packaging solutions typically comprise containers with a dispensing mouth that is reclosable with a closure elements, like a screw cap for instance. Such packages are widely known, and allow a consumer to dispense the contents with a good flow rate.
- However, in order to guarantee a reliable dispensing and a good flow rate, the container is such that when the dispensing mouth is not closed, the contents can be spilled if the container is tilted, or generally if the contents comes in contact with the dispensing mouth. In such case, the contents directly flows out through the dispensing mouth.
- To overcome this drawback, so-called “sports closures” have been developed which comprise a dispensing channel which can be closed easily by pushing a closing element which is generally not detachable from the rest of the closure. Such sports closures are widely know, and different systems are proposed, for instance push-pull closures, hinged closures, etc. However such closures are complex and expensive to manufacture, hence a higher price for the product to the consumer, particularly in case the container is for a nomadic consumption of a product with a limited content volume. Moreover, they require a large amount of material for their different constitutive parts. Moreover, one major drawback is that such sports cap leak if the consumer does not close them.
- Due to the drawbacks of sports closures, another type of closures was developed which comprise an elastomeric valve, like a slit valve. Such valve closures are reliable and their use in the food packaging industry increases, for instance for packing honey, ketchup, or the like. One particular advantage which is of high importance is that such closures do not necessarily require an additional overcap to seal the valve. In other words, the valve itself is sufficiently resilient to reclose after dispensing, so that even if the container is tilted, the contents in contact with the internal surface of the valve does not leak through. This is a clear consumer benefit.
- However such slit valves are expensive to manufacture because they involve several materials for the closure: the closure body is generally made out of polyethylene or polypropylene, and the slit valve itself is made of a silicon or other similar resilient material, which must be assembled or co-injected with the closure body.
- Other types of containers are known which are single-piece flasks made by extrusion-blowing of a thermoplastic such as polyethylene. Such containers comprise a container body, which is manufactured together integrally with a detachable tip. When the tip is torn off by the user, a very tiny dispensing opening is created in the container walls, which allows for dispensing of the contents. Such containers are widely used in the pharmaceutical industry, for providing monodoses (unidoses) for instance for local treatment by a collyrium (i.e. eardrops or eyedrops). Such collyrium unidoses containers have an advantage that the contents, although liquid or at least very fluid, does not leak through the dispensing opening even if said contents is in contact with the internal surface of the dispensing opening. However, they have a clear disadvantage that due to their manufacturing process and structure, they are suitable for very small content volumes only, typically less 5 ml, which are clearly not compatible with consumer products like in the food industry for instance, wherein containers with a contents over 10 ml, preferably over 50 ml are required.
- There is therefore a need for a large container having a content volume compatible with consumption of fluid consumer goods, like food edible products (i.e. typically over 10 ml, preferably over 50 ml, more preferably over 25 cl) wherein said container is inexpensive to manufacture.
- Importantly, such a container should allow a sufficient flow rate during dispensing, but at the same time, it should prevent leakage of the contents even when the dispensing opening is not closed by a closure system, and the container is tilted such that the contents is in contact with the internal side of the dispensing opening.
- The objectives set out above are met with the present invention, which provides a container comprising a deformable container body with at least one compartment, for containing a flowable liquid, semi-liquid, or jellified product having a viscosity lower than 1 Pa·s at 20° C. (preferably less than 500 mPa·s, more preferably less than 100 mPa·s), and at least one dispensing opening for dispensing said product, which is located in a spout element, said container having a capacity of at least 10 ml, preferably at least 50 ml, characterized in that the functional cross-section of said at least one opening is fixed and comprised between 0.002 mm2 and 7 mm2, preferably between 0.008 mm2 and 0.8 mm2, more preferably between 0.03 mm2 and 0.4 mm2, and most preferably between 0.07 mm2 and 0.2 mm2, such that said product flows through said opening only after an external force of at least 0.5 kg, preferably at least 1 kg, more preferably at least 3 kg is exerted onto the container body walls which is directed towards the inside of said body.
- By “functional cross-section” it is meant the cross section of the hollow internal portion of a dispensing opening.
- It is to be noted that the deformation applied onto the container body surface is expressed as originated from a force exerted thereon, as it is supposed that the pressure applied onto said surface is evenly distributed across said surface.
- In a highly preferred embodiment of the present invention, the container comprises a plurality of dispensing openings, whose number is at least 6, preferably at least 12, more preferably at least 18.
- Also preferably, the container further comprises a closure system associated to said spout element. In that case, said closure system advantageously comprises a manually breakable tamper-evident means.
- Said tamper-evident means can be for instance a laser-scored pre-cutting disposed such that said closure system can be torn-off in order to give access to the container contents through said opening.
- The deformable container body can be a flexible film pouch, or alternatively it can be a plastic bottle with walls having at least one portion whose thickness is lower than 200 microns, preferably lower than 100 microns.
- In the latter case, said bottle is preferably made of PET (polyethylene terephtalate) or PEN (polyethylene naphthalate), and manufactured by a stretch blow-moulding process from a PET, respectively a PEN preform.
- Yet in another case, said deformable container body can be a bottle comprising deformable at least one accordion-shaped portion with bellows which can be deformed under force.
- In all the above embodiments of the invention, each of said at least one dispensing opening can take the form of a channel, having a length comprised between 0.1 and 20 mm, preferably between 0.5 and 10 mm, more preferably between 1 and 7 mm.
- Additional features and advantages of the present invention are described in, and will be apparent from, the description of the presently preferred embodiments which are set out below with reference to the drawings in which:
-
FIG. 1 is schematic profile view of a flexible pouch according to the invention; -
FIG. 2 is a schematic profile view of a flexible bottle according to the invention; -
FIG. 3 is a schematic top cut view along A-A ofFIGS. 1 and 2 ; -
FIG. 4 is a schematic top cut view similar toFIG. 3 , wherein the dispensing openings have an alternative design to those shown inFIG. 3 , -
FIGS. 5 a to 5 c are a schematic representation of the closing system, and -
FIG. 6 represents another embodiment of the closing system. - The present invention is directed to a
container 1 comprising a dispensing opening that is structured and designed such that: - it allows the fluid product contained inside the
container body 2 to be dispensed therethrough, and - it allows the fluid product to be retained inside the container without leaking through said opening when the latter is open and the container is disposed such that said product is in contact with the inner surface of the dispensing opening.
- The
container 1 as illustrated inFIG. 1 comprises adeformable container body 2 having one compartment, for containing a flowable liquid, semi-liquid, or jellified product having a viscosity lower than 1 Pa·s at 20° C. - The container body shown in
FIG. 1 is aflexible film pouch 2. - As shown in
FIG. 1 , aspout element 3 is attached to thecontainer pouch body 2. The spout element is an injection moulded element made of a thermoplastic such as polyethylene (PE) or polypropylene (PP). The spout element comprises a base which is sealed with thefilm pouch 2, such that the sealing is leaktight. - As illustrated in
FIG. 3 , thespout element 3 comprises a plurality of openings which run through the thickness of said spout, so as to establish a fluid communication between the interior of the pouch, and the exterior. According to the invention the functional cross-section of the dispensing openings is fixed and comprised between 0.002 mm2 and 7 mm2, preferably between 0.008 mm2 and 0.8 mm2, more preferably between 0.03 mm2 and 0.4 mm2, and most preferably between 0.07 mm2 and 0.2 mm2, such that said product flows through said opening only after an external force of at least 0.5 kg, preferably at least 1 kg, more preferably at least 3 kg, is exerted onto the container body walls which is directed towards the inside of said body. - The dispensing openings illustrated in
FIG. 3 are straight channels having a circular functional cross section, and having a length of about 15 mm. In some alternative embodiments, the channels can be curved or comprise angled portions. - The number of dispensing openings will be chosen according to the viscosity of the product contained in the pouch, and also on the dispensing flow which must be obtained, i.e. depending on the type of use of the contents. For instance the output flow can be slower for viscous products such as culinary sauces for instance, whereas a liquid like mineral water should be able to flow sufficiently rapidly to allow a proper thirst quenching.
- Typically the number of dispensing openings can be a multiple of six, but not necessarily. In the example illustrated in
FIG. 3 , the number of dispensing openings is seven. - In an alternative embodiment illustrated in
FIG. 2 , the container body is a very thin-walled bottle 5 made for instance of a blow-moulded polyethylene terephtalate (PET) material which is obtained by stretch blow-moulding of an injected preform. According to the invention, thebottle walls 6 are flexible and can be deformed by hand squeezing. Therefore, the bottle wall thickness is preferably less than 100 μm. - In this embodiment, the
spout element 3 is clipped, sealed, or similarly attached in a leaktight manner to the bottle body. - In all embodiments of the invention, it should be clear that by increasing the number of openings, and despite their small functional cross-section, it is possible to achieve a reasonably good flow rate depending on the force applied to the deformable container body and also depending on the viscosity of the product contained therein, and on the flexibility of the deformable container.
- In any case, the material which is used to manufacture the deformable container body is such that flow rates can be obtained which are sufficient to guarantee a proper dispensing of the product to a consumer, and such flow rates values can be obtained by applying a manual force onto the container body walls which is reasonable, i.e. compatible with use of the container by grown-ups, teenagers, adults and elderly people.
- According to the invention, acceptable flow rates should be comprised within the range of 50-5000 ml/min, preferably 100-1000 ml/min, more preferably 200-500 ml/min.
- Also according to the invention, reasonable force to be exerted onto the walls of the container body is defined as follows:
- minimal force is comprised within the range of 1-5 kgs, preferably within 2-4 kgs, more preferably it is set at about 3 kgs. With such values, we ensure that for volumes below about 3 litres of very fluid products (e.g. water), flowing does not occur just by gravity, and
- maximal force is comprised within the range of 20-40 kgs, preferably within 25-35 kgs, more preferably it is set at about 30 kgs. According to tests, 30 kgs is a very intense grip to achieve for a teenager or an adult, and certainly not reachable for a baby or a very old person.
- Forces are measured using testing appliance, method and conditions as follows: the pouch is placed on a flat surface; a force is uniformly applied on the pouch by placing different weights on the support plate.
- Examples of flow rates, obtained when different forces are applied onto the surface of the container body, are shown in Table 2 below. In this case, the product contained in the container body is water, at 20° C. (its viscosity is 1.002 mPa·s). The container body is a flexible pouch having a volume of 250ml, made of a multilayer plastic film having a total thickness of about 150 μm. The dispensing openings have a circular functional cross section (i.e. diameter), similar to the embodiment described above with reference to
FIG. 3 . -
TABLE 2 Example of Water (20° C.) Flow rate (ml/min) 6 holes 12 holes 18 holes Force in N (/kg) Ø 0.2 mm2 Ø 0.2 mm2 Ø 0.2 mm2 19.62 (/2 kg) 50 106 158 39.24 (/4 kg) 86 — — 49.05 (/5 kg) 106 204 312 98.10 (/10 kg) 144 302 450 147.15 (/15 kg) 180 330 510 196.20 (/20 kg) 198 — — 245.25 (/25 kg) 220 — — - In an alternative embodiment of the invention illustrated in
FIG. 4 , thecontainer 1 is similar to the container described above in reference toFIG. 3 , but for the design of the dispensing openings. In this embodiment, the dispensingopenings 9 have a non-circular cross section, more particularly a trapezoidal cross section. All openings are disposed in a star-shaped configuration, as can be seen inFIG. 4 , with their short end turned towards the centre of the star. - In all embodiments of the invention, the
spout element 3 can be constructed such that it comprises aclosing system 7, which closes the dispensingopenings 4 at least at the time of manufacture, filling, and during storage. Then, at the time of dispensing the consumer can remove theclosing system 7 by tearing it off, by unclipping, unscrewing, or other similar operation as necessary. - For instance, as illustrated in
FIGS. 1 and 2 , theclosing system 7 is manufactured as an integral distal element of thespout element 3, such that it can be detached along aweakness line 8. After thedistal closing system 7 is detached, the dispensingspout 3 is as shown inFIG. 3 , i.e. with open dispensing openings, ready for dispensing by squeezing the container body. -
FIGS. 5 a to 5 c are presenting a complete view of the spout element meaning a perspective view of thespout element 3 with theclosing system 7 as it is once in place on the container (FIG. 5 a), a cross section view of thespout element 3 ofFIG. 5 a (FIG. 5 b) and a cross section view of thespout element 3 andclosing system 7 ofFIG. 5 a once thedistal closing system 7 has been broken along itsweakness line 8 and showing the dispensing openings 4 (FIG. 5 c). - According to
FIGS. 5 a to 5 c, thespout element 3 is manufactured as a two parts component cap having: - a breakable part 10 (distal part of the spout element 3), and
- a
bi-injected part 11 sealed on thecontainer 1. - The bi-injected part is preferably made with Polyethylene (PE) Polyethylene Terephtalate (PET) but can be made with other material.
- The sealing of the spout element on the container is ensured using the elastic properties of the material.
- When the consumer wants to have access to the product, he beaks the distal part of the
closing system 7 along theweakness line 8 and the distal part of theclosing system 7 is then separated from thespout element 3. - The dispensing
openings 4 are then accessible and ready for dispensing the product contained in the container to the consumer. - In the current embodiment, the spout element is moulded without any holes to ensure good moulding properties. The holes are made during the assembly step for example by micro perforation with micro needles or using a laser.
-
FIG. 6 presents another embodiment of the invention in which theclosing system 7 of thespout element 3 is made of a duallaminated lid 12 comprising twolayers - The
first layer 13 a (top layer) is a peelable layer having protective functions and serves as tamper evidence for thecontainer 1. In the current embodiment, thefirst layer 13 a has a graspingtab 14 helping in peeling thefirst layer 13 a. Thisfirst layer 13 a is then defined as the peelable layer. - The
second layer 13 b (bottom layer) is sealed on thecontainer 1 and is perforated with multiples holes as dispensingopenings 4. The holes limit the liquid flow of the product as it evacuates out of the container and do not evacuate product under a defined pressure applied on the container. Thissecond layer 13 b is then defined as a dispensing layer. - For example, the holes are of diameter of 0.2 mm and are spaced from each other of about 1 mm. This is only an example and other diameters can be chosen according to the characteristics of the product to evacuate.
- The dual
laminated lid 12 is sealed on the container neck after it filing and ensures a seal tightness of the packaging. - For consumption, the consumer peels the
top layer 13 a off, then disclosing thebottom layer 13 b which stays on the container's neck and presenting the dispensingopenings 4. The product is then ready for consumption. - It should be understood that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. Such changes and modifications can be made without departing from the spirit and scope of the present invention and without diminishing its attendant advantages. It is therefore intended that such changes and modifications be covered by the appended claims.
- For instance, although the spout element is meant to be rigid, it could also be envisaged to apply a soft spout element, made of an elastomeric material, or being a spongy material.
Claims (14)
1. A container comprising a deformable container body with at least one compartment, for containing a flowable liquid, semi-liquid, or jellified product having a viscosity of less than 1 Pa·s at 20° C., and at least one dispensing opening for dispensing the product, which is located in a spout element, the container having a capacity of at least 10 ml, the functional cross-section of the at least one opening is fixed and comprised between 0.002 mm2 and 7 mm2, such that the product flows through the opening only after an external force of at least 0.5 kg, is exerted onto the container body walls which is directed towards the inside of the body.
2. A container according to claim 1 , comprising at least six dispensing openings.
3. A container according to claim 1 , comprising a closure system, associated with the spout element.
4. A container according to claim 3 , wherein the closure system comprises a manually breakable tamper-evident member.
5. A container according to claim 4 , wherein the tamper-evident member is a laser-scored pre-cutting disposed such that the closure system can be torn-off in order to provide access to the container contents through the opening.
6. A container according to claim 3 , wherein the closure system comprises a dual laminated lid.
7. A container according to claim 6 , wherein the dual laminated lid is sealed on the container's neck.
8. A container according to claim 6 , wherein the dual laminated lid comprises a first layer which is peelable.
9. A container according to claim 6 , wherein the dual laminated lid comprises a second layer which comprises dispensing openings.
10. A container according to claim 1 , wherein the deformable container body is a flexible film pouch.
11. A container according to claim 1 , wherein the deformable container body is a plastic bottle with walls having at least one portion whose thickness is less than 200 microns.
12. A container according to claim 11 , wherein the bottle is made of PET (polyethylene terephtalate) or PEN (polyethylene naphthalate).
13. A container according to claim 1 , wherein the deformable container body is a bottle comprising a deformable accordion-shaped portion with bellows which can be deformed under force.
14. A container according to claim 1 , wherein said-the at least one dispensing opening is a channel having a length of between 0.1 and 20 mm.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP11176558.2 | 2011-08-04 | ||
EP11176558A EP2554486A1 (en) | 2011-08-04 | 2011-08-04 | A packaging with a spout for flowable products |
PCT/EP2012/064910 WO2013017579A1 (en) | 2011-08-04 | 2012-07-31 | A packaging with a spout for flowable products |
Publications (1)
Publication Number | Publication Date |
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US20140203048A1 true US20140203048A1 (en) | 2014-07-24 |
Family
ID=46598526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US14/236,570 Abandoned US20140203048A1 (en) | 2011-08-04 | 2012-07-31 | Packaging with a spout for flowable products |
Country Status (7)
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US (1) | US20140203048A1 (en) |
EP (2) | EP2554486A1 (en) |
JP (1) | JP2014524872A (en) |
CN (1) | CN103717499B (en) |
CA (1) | CA2842393A1 (en) |
MX (1) | MX340935B (en) |
WO (1) | WO2013017579A1 (en) |
Cited By (1)
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US20210341328A1 (en) * | 2018-09-07 | 2021-11-04 | Saipem S.A. | Method and device for determining the volume of liquid remaining inside a flexible liquid-dispensing pouch |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3074323B1 (en) * | 2013-11-26 | 2018-06-27 | Ecolab USA Inc. | Product packaging for a solid product block |
WO2019086262A1 (en) * | 2017-10-30 | 2019-05-09 | Unilever Plc | A container for measuring a liquid |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210341328A1 (en) * | 2018-09-07 | 2021-11-04 | Saipem S.A. | Method and device for determining the volume of liquid remaining inside a flexible liquid-dispensing pouch |
US11874151B2 (en) * | 2018-09-07 | 2024-01-16 | Saipem S.A. | Method and device for determining the volume of liquid remaining inside a flexible liquid-dispensing pouch |
Also Published As
Publication number | Publication date |
---|---|
EP2554486A1 (en) | 2013-02-06 |
CN103717499A (en) | 2014-04-09 |
CN103717499B (en) | 2016-11-16 |
MX340935B (en) | 2016-08-01 |
WO2013017579A1 (en) | 2013-02-07 |
CA2842393A1 (en) | 2013-02-07 |
JP2014524872A (en) | 2014-09-25 |
EP2739538A1 (en) | 2014-06-11 |
MX2014001266A (en) | 2014-05-19 |
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Legal Events
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