DUAL-CHAMBER DISPENSER CONTAINER

Abstract

DUAL-CHAMBER DISPENSING CONTAINER This application relates to a dual-chamber dispensing container for the dispensing of two compositions in a mixed state, said container comprising: a substantially tubular container body, made of an elastically deformable material, having a lower end which is closed, and an end having an opening, in which the container body defines a chamber; a cap for enclosing the opening of the container body;a partitioning unit disposed inside the container body, between the lower end and the end having an opening, wherein the partitioning unit closes the substantially tubular container body along a peripheral edge thereof so as to separate the chamber into a first compartment distant from the lower end and a second compartment near the lower end, wherein the first compartment is configured to contain a first composition, and the second compartment is configured to contain a second composition. The partitioning unit includes a partitioning ring and a partitioning plate formed as a single piece, and the partitioning plate is configured to be separated from the partitioning ring under the effect of pressure or a transverse activation force on the container body. Figure for the abstract: none;

Description

Title of the invention: DUAL-CHAMBER DISPENSER CONTAINER FIELD OF INVENTION

[0001] The invention generally relates to a double-chamber dispensing container for dispensing two compositions in a mixed state. CONTEXT

[0002] The statements contained in this section merely provide background information related to this disclosure and may not constitute prior art.

[0003] In recent years, a growing trend has swept the globe: young people everywhere are embracing the vibrant and exciting world of hair coloring. This phenomenon is not just a trend; it is a lifestyle choice that allows the younger generation to showcase their unique personalities, creativity, and style. Hair coloring products are available in a variety of forms.

[0004] Generally, a hair coloring product includes two separate tubes: the colorant and the developer. When coloring hair, a user usually pours equal amounts of colorant and developer from the two separate tubes into a mixing bowl and squeezes them together. Then, using an applicator brush, the user carefully mixes the contents until a smooth and homogeneous mixture is obtained. This hair coloring process is very complicated to perform.

[0005] A multi-chamber dispensing container is known from document WO9100094A1. This application generally describes the use of a multi-chamber dispensing container for the storage and, on-demand, dispensing of a mixture of two liquids, in this case, a solution of papaverine sulfate and a basic solution such as sodium bicarbonate. It is necessary to separate the two solutions to prevent the precipitation of papaverine H₂ during storage. The two solutions are stored in a container body in the form of a rubber tube, having an open end and a lower end, in two chambers separated by a plastic disc. This disc is positioned perpendicular to the container body and has a diameter greater than the internal diameter of the container body.In this way, the disc is held in place by the elastic support of the container body on its peripheral edge. Dispensing means are also provided nearby. The end with an opening in the container body, which hermetically seals said opening, takes the form of an injection needle. Before activation, i.e., during storage, the two liquids are thus hermetically separated by the disc. Activation of the dispensing container is achieved by moving the disc, caused by pressure from the hand and thumb in an alternating motion on the container body. The disc thus falls to the bottom of the tube, allowing the two solutions to mix. The mixture is then dispensed by injection into the container body through the needle.

[0006] Regarding this type of multi-chamber dispensing container, there are some drawbacks that need to be addressed, notably the rather high pressure required to move the disc in order to mix the two substances. This is because the diameter of the disc is greater than the inner diameter of the container body, and furthermore, the disc is held in place within the body by means of an annular groove formed on the inner wall of the container body. Thus, moving the disc requires sustained force.

[0007] It should be noted that there is still a need for a double-chamber dispensing container for dispensing two compositions in a mixed state, in which fewer elements are used than with the use of two separate tubes to store two different formulas, which is easy to use because of the reduced pressure required to separate the partitioning unit, which is rather user-friendly, especially for elderly users, and which guarantees the airtight sealing and mixing of the two compositions thanks to the partitioning unit, a need which the present invention substantially meets. SUMMARY

[0008] An object of the present invention is to provide a double chamber dispensing container for dispensing two compositions in a mixed state and a method for producing it, using fewer elements than with the use of two separate tubes to store two different formulas, easy to use because of the reduced pressure required to separate the partitioning unit, which is rather user-friendly, especially for elderly users, and ensuring airtight sealing and mixing of the two compositions thanks to the partitioning unit.

[0009] According to an advantageous embodiment, the invention relates to a double-chamber dispensing container for dispensing two compositions in a mixed state, said container comprising: • a substantially tubular container body, made of an elastically deformable material, having a closed lower end, and one end having an opening, in which the container body defines a chamber: • a cap to seal the opening of the container body; • a partitioning unit located inside the container body, between the lower end and the end having an opening, in which the partitioning unit closes the substantially tubular container body along a peripheral edge thereof so as to separate the chamber into a first compartment away from the lower end and a second compartment near the lower end, in which the first compartment is configured to contain a first composition, and the second compartment is configured to contain a second composition; • in which the partitioning unit comprises a partitioning ring and a partitioning plate which are formed in one piece, and the partitioning plate is configured to be separated from the partitioning ring under the effect of pressure or a transverse activation force exerted on the body of the container.

[0010] In one aspect of the double chamber dispensing container according to the present application, the partition ring and the partition plate are formed in one piece by bi-injection or overmolding or are mechanically assembled under the effect of a force.

[0011] In another aspect of the double chamber dispensing container according to the present application, the partition ring is sealed transversely on the inner periphery of the substantially tubular container body preferably by means of laser welding or ultrasonic welding.

[0012] In another aspect of the double chamber dispensing container according to the present application, the partition ring is made of the same material as that of the substantially tubular container body.

[0013] In another aspect of the double chamber dispensing container according to the present application, the substantially tubular container body includes, on its external surface, an indicator to assist a user in applying the transverse activation pressure or force on it.

[0014] In another aspect of the double chamber dispensing container according to the present application, the partition plate is made of a first material, and the partition ring is made of a second material having a melting temperature lower than that of the first material.

[0015] In another aspect of the double chamber dispensing container according to the present application, the second material comprises HDPE, and the first material comprises PET.

[0016] In another aspect of the double chamber dispensing container according to the present application, a single material or two or more different materials are used for the partition ring and the partition plate which are mechanically assembled under the effect of a force, and preferably the material includes PP.

[0017] In another aspect of the double chamber dispensing container according to the present application, the partition plate is formed with a peripheral groove which has a depth in a direction perpendicular to a principal surface of the partition plate, and the partition ring has a projecting edge along its perimeter, and the edge is configured to be snap-fitted into the peripheral groove, and preferably, one or more ribs extend diagonally into the partition ring.

[0018] In another aspect of the dual-chamber dispensing container according to the present application, the first composition includes a dye, and the second composition includes a developer.

[0019] In another aspect of the double chamber dispensing container according to the present application, two slots are arranged on the left and right sides of the external surface of the cap.

[0020] According to another advantageous embodiment, the invention relates to a method for producing a double-chamber dispensing container for dispensing two compositions in a mixed state, the method including: • the supply of a partitioning unit including a partitioning ring and a partitioning plate, in which the partitioning ring and the partitioning plate are formed in one piece by bi-injection or overmolding or are mechanically assembled under the effect of a force; • the supply of a substantially tubular container body, wherein the container body has a lower end which is open and an end having an opening for distribution; • laser welding or ultrasonic welding of the partitioning unit onto the substantially tubular container body, so that the partitioning ring is sealed transversely on the inner periphery of the substantially tubular container body, in which the partitioning unit separates the tubular container body into a first compartment away from the lower end and a second compartment near the lower end; • filling the first compartment with an initial composition; • sealing the first compartment by closing a cap on the opening of the container body; • filling the second compartment with a second composition; and • sealing the lower end to form a transverse joint to seal the second compartment.

[0021] In another aspect of the process of producing a double-chamber dispensing container according to the present application, a first material is first injected to form the partition plate, and a second material is then injected onto the partition plate to form the partition ring, in which the second material has a melting temperature lower than that of the first material.

[0022] In another aspect of the process for producing a double-chamber dispensing container according to the present application, the partition ring is made of the same material as the substantially tubular container body.

[0023] In another aspect of the process for producing a double-chamber dispensing container according to the present application, the second material includes HDPE, and the first material includes PET.

[0024] In another aspect of the process of producing a double-chamber dispensing container according to the present application, an indicator is formed on an external surface of the substantially tubular container body, in order to assist a user in applying the transverse activation pressure or force on it.

[0025] In another aspect of the method for producing a double-chamber dispensing container according to the present application, the partition plate is formed with a peripheral groove that has a depth in a direction perpendicular to a principal surface of the partition plate, and the partition ring has a projecting edge along its perimeter, and the edge is configured to be snap-fitted together with the peripheral groove, and preferably, one or more ribs extend diagonally into the partition ring; and, optionally, two slots are arranged on the left and right sides of the external surface of the cap for clamping during filling.

[0026] In another aspect of the process for producing a double-chamber dispensing container according to the present application, the first composition includes a dye, and the second composition includes a developer.

[0027] In another aspect of the process for producing a double-chamber dispensing container according to the present application, a single material or two or more different materials are used for the partition ring and the partition plate which are mechanically assembled under the effect of a force, and preferably the material includes PP.

[0028] Thanks to the double-chamber dispensing container and the method for producing it according to the present application, fewer components are used than with the use of two separate tubes to store two different formulas, and use is easy in due to the reduction in pressure required to separate the partitioning unit, which is rather user-friendly, especially for elderly users, and the airtight sealing and mixing of the two compositions are guaranteed thanks to the partitioning unit.

[0029] Other areas of applicability will become apparent from the description provided here. It should be understood that the description and specific examples are for illustrative purposes only and are not intended to limit the scope of the disclosure. BRIEF DESCRIPTION OF THE FIGURES

[0030] The drawings described herein are provided for illustrative purposes only and are not intended to limit the scope of this disclosure in any way.

[0031] [Fig.1] Fig.1 shows a perspective view of a double chamber dispensing container for dispensing two compositions in a mixed state according to an embodiment of the present invention.

[0032] [Fig.2] Fig.2 shows an exploded view of the double dispensing container chamber according to an embodiment of the present invention, in which a first compartment and a second compartment are imaginary, just to facilitate understanding of the relationships of the elements of the container;

[0033] [Fig. 3] [Fig. 3] Figure 3 shows a cross-sectional view of the double dispensing container chamber according to an embodiment of the present invention.

[0034] [Fig.4] Fig.4 represents an exploded view of a partitioning unit of a double chamber dispensing container according to an embodiment of the present invention.

[0035] [Fig. 5] [Fig. 5] Figure 5 shows a cross-sectional view of the partitioning unit of the double chamber dispensing container according to an embodiment of the present invention.

[0036] [Fig.6] Fig.6 represents a schematic view of the welding of the unit partitioning to a tubular container body of the double chamber dispensing container according to an embodiment of the present invention.

[0037] [Fig.7] Fig.7 represents a schematic view of a production process for a double chamber dispensing container for dispensing two compositions in a mixed state according to an embodiment of the present invention. DETAILED DESCRIPTION

[0038] The following description is purely exemplary and is not intended to limit this disclosure, its application or its uses.

[0039] The following detailed description of the present invention refers to the accompanying drawings, which illustrate specific embodiments in which the present The invention can be implemented. These embodiments are described in sufficient detail to enable a person skilled in the art to implement the present invention. It should be understood that various embodiments of the present invention are different from one another, but are not necessarily mutually exclusive.

[0040] With regard to the terms used in the present invention, general terms that are currently and widely used are chosen with consideration for the functions of the present invention. However, the meaning of the terms may be modified according to the intention of a person skilled in the art, legal precedent, the emergence of new technology, and the like. Furthermore, in some cases, a term may be chosen at the applicant's discretion. In such cases, the meaning of the term will be described in detail in the corresponding section of the description of the invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the complete descriptions provided herein, and not limited to simply the names of the terms.

[0041] In this disclosure, when a certain part "includes" certain elements, unless explicitly stated otherwise, this means that other elements may in addition be included, but not excluded.

[0042] A double-chamber dispensing container for dispensing two compositions in a mixed state according to one or more embodiments of the present invention will be described below with reference to Figures 1 to 7.

[0043] Figures 1 to 3 illustrate a double chamber dispensing container 1000 according to an embodiment of the present invention in exploded views and a cross-sectional view, respectively.

[0044] As shown in Figures 1 to 3, the double-chamber dispensing container 1000 comprises a substantially tubular container body 1. In one example, the tubular container body 1 is made of an elastically deformable material, for example, high-density polyethylene or polypropylene. In one embodiment, the tubular container body 1 is transparent or translucent, so that the user can easily see its contents. In the embodiment of the present invention, the tubular container body 1 includes a closed lower end and an end having an opening 13, in which the container body defines a chamber. In an embodiment as shown in [Fig. 2], the tubular container body 1 includes a nozzle 11 on one end, and the nozzle 11 defines an opening 13 for filling.

[0045] In one embodiment of the present invention, the double-chamber dispensing container 1000 further comprises a cap 2 for closing the opening 13 of the container body 1. The cap 2 is fixed to the nozzle 11. In order to apply a pressure or activation force to open the cap 2, the cap 2 may include, on its external surface, a recess 24 to allow a finger to apply a force on the cap 2. In addition, in order to facilitate the handling of the container 1000 by a user or during manufacturing or filling, preferably two slots 23 are arranged on the left and right sides of the external surface of the cap 2, which will be discussed below.

[0046] In one embodiment of the present invention, the cap 2 is a hinged cap, and it includes a main body 21 and a cover 22. In one example, the cover 22 is hinged relative to the main body 21 by means of a hinge, in particular a film hinge, which is not shown in the figures. In this way, the cap 2 can be easily opened or closed by pivoting the cover 22 relative to the main body 21.

[0047] In one embodiment of the present invention, the double-chamber dispensing container 1000 further comprises a partitioning unit 3. The partitioning unit 3 is arranged inside the container body 1 so as to hermetically divide the chamber of the tubular container body 1 into two chambers, namely a first compartment 14 located away from the lower end and a second compartment 15 located near the lower end. The first compartment 14 and the second compartment 15 of [Fig. 2] are imaginary, solely to facilitate understanding the positional relationships of the elements within the container 1000. In one embodiment of the present invention, the first compartment 14 is configured to contain a first composition, and the second compartment 15 is configured to contain a second composition.

[0048] In one embodiment of the present invention, the partitioning unit 3 includes a continuous peripheral edge 311 as shown in [Fig. 4], disposed inside the tubular container body 1 of the container 1000, between the lower end and the end having an opening 13, hermetically sealing the tubular container body 1 along its peripheral edge 311. In this way, before the partitioning unit 3 is activated by the user, the two compositions cannot come into contact with each other and are effectively stored hermetically. This makes it possible to store two compositions in separate states, which are relatively unstable when they come into contact with each other, in the same container 1000 for a long period. In one example, the first composition includes a dye, and the second composition includes a developer.

[0049] Preferably, the partitioning unit 3 is substantially in the form of a disk, for example circular or elliptical, but this shape can of course vary according to the circumferential shape of the containing body 1.

[0050] In one embodiment of the present invention, the partitioning unit 3 includes a partitioning ring 31 and a partitioning plate 32. In one embodiment, the partitioning ring 31 and the partitioning plate 32 are formed in one piece by bi-injection or overmolding or are mechanically assembled under the effect of a force, and the partitioning plate 32 is configured to be separated from the partitioning ring 31 under the effect of pressure or a transverse activation force exerted on the container body 1.

[0051] In one embodiment of the double chamber dispensing container 1000 according to the present application, a single material or two or more different materials are used for the partition ring 31 and the partition plate 32 which are mechanically assembled under the effect of a force, and preferably the material includes PP.

[0052] In one embodiment of the present invention, the partition plate 32 is made of a first material and the partition ring 31 is made of a second material having a lower melting point than the first material. In one embodiment, the second material includes HDPE, and the first material includes PET. In one example, the first material has an injection temperature of approximately 260 °C to 300 °C, and the second material has an injection temperature of approximately 180 °C to 230 °C. During the manufacture of the partition unit 3, a first material is first injected into a mold to form the partition plate 32. After the partition plate 32 has hardened, a second material is then injected onto the partition plate 32 to form the partition ring 31.At this stage, since the melting temperature of the partition plate 32 is higher than that of the partition ring 31, the partition plate 32 is kept in a solidified state during the injection of the second material onto the partition plate 32. This allows the second material to be overmolded onto the partition plate 32, thus forming a combination of the partition ring 31 and the partition plate 32. Furthermore, a mechanical bond is provided between the partition ring 31 and the partition plate 32, so that the partition ring 31 and the partition plate 32 are formed as a single piece by bi-injection.

[0053] Figure 4 shows an exploded view of a partition unit 3 of a double-chamber dispensing container 1000 according to an embodiment of the present invention. Figure 5 shows a cross-sectional view of the partition unit 3 of the double-chamber dispensing container 1000 according to an embodiment of the present invention. As shown in Figure 4, the partition ring 31 includes a skirt 311 which forms a continuous peripheral edge of the partition unit 3 for hermetically sealing the tubular container body 1. The hollow cone 312 is formed as a single piece with the skirt 311 and extends inwards and downwards from the upper end of the skirt 311. In one example, one or more ribs 314 extend diagonally into the partition ring 31 to support the partition plate 32. In another example, there are one or more ribs 314 that extend in a horizontal plane into the hollow cone 312, and windows 313 are formed between the ribs 314 and the hollow cone 312. The ribs 314 are optional, and compared to the window area 313, the rib areas 314 are rather small, so as not to affect the flow of the mixed compositions when the partition plate 32 is separated from the partition ring 31.

[0054] As shown in Figures 4 to 5, the partition plate 32 includes a disc 321, and there is an edge 323 on the circumference of the disc 321. Between the disc 321 and the edge 323 is a peripheral groove 322 that has a depth in a direction perpendicular to a principal surface of the partition plate 32. In one embodiment of the present invention, as shown in [Fig. 5], the partition ring 31 has an edge 315 extending downwards from the hollow cone 312, and the edge 315 projects along its perimeter. The edge 315 is configured to snap into place with the peripheral groove 322. Furthermore, the snap between the edge 315 and the peripheral groove 322 forms a labyrinth seal, so as to improve the airtight sealing between the first compartment 14 and the second compartment 15.In one example, the hollow cone 312 of the partition ring 31 provides support to the partition plate 32, so that the partition plate 32 can only move away from the partition ring 31 in the downward direction as shown in Figures 4 to 5. After the partition plate 32 is separated from the partition ring 31, the two compositions can be mixed by passing through the partition ring 31, in particular by passing through its windows 313.

[0055] In one embodiment of the present invention, the partition ring 31 is made of the same material as the substantially tubular body, therefore for example of high-density polyethylene or polypropylene.

[0056] Figure 6 shows a schematic view of the welding of the partition unit 3 to a tubular container body 1 of the double-chamber dispensing container 1000 according to an embodiment of the present invention. In an embodiment as shown in Figure 6, a partition unit 3 is loaded onto a jig 40. The partition unit 3 is then inserted into the tubular container body 1 using the jig 40. After the partition unit 3 and the tubular container body 1 are fixed in position, a laser 41 is introduced to perform laser welding bending around the circumference of the body. tubular container 1 is positioned where the partition unit 3 is located, such as a laser-welded bend with a width of approximately 2 to 4 mm. In one example, the laser welding is carried out using a laser 41 mounted on a rotating laser arm 42, which rotates about an axis of rotation SI, and the axis of rotation SI coincides with a central axis S2 of the tubular container body 1.

[0057] Figure 7 shows a schematic view of a method for producing a double-chamber dispensing container 1000 for dispensing two compositions in a mixed state according to an embodiment of the present invention. First, the tubular body of the container 1 is a hollow cylinder at the lower end, as shown in Figure 7a. The partitioning unit 3 is inserted into the tubular container body 1 through the open lower end. As shown in Figure 6, a jig is used to support the partitioning unit 3 and the tubular container body 1 in position, and then the partitioning unit 3 is welded to the tubular container body 1, so that the tubular container body 1 is divided into the first compartment near the nozzle 11 and the second compartment near the lower end.Next, a pair of retaining jigs 52 is clamped onto the slots 23 on the external surface of the cap 2 so as to hold the tubular container body 1. In this way, during the filling of the container 1000, there will be little or no pressure or damage to the area of ​​the partition unit. Meanwhile, a filling nozzle 51 fills the first compartment 14 with the first composition, such as a dye, as schematically shown in Figure 7b.

[0058] After the first compartment 14 is filled with the first composition, the retaining templates 52 remain clamped onto the slots 23, and the lid 22 is closed onto the main body 21 so as to seal the opening 13 and thus seal the first compartment 14, as schematically shown in Figure 7c. Next, the tubular container body 1 is placed in an inverted position so that the second compartment 15 is at the top and the first compartment 14, which was filled with the first composition, is now at the bottom, as shown in Figure 7c. Similarly, the second compartment 15 will be filled with the second composition, such as the developer, by means of another filling nozzle 53, as schematically shown in Figure 7d.After the second compartment 15 is filled with the second composition, the second compartment 15 is closed and sealed by a transverse seal 12, as schematically shown in Figure 7e. In this way, the tubular container body 1 is sealed in both the first compartment 14 and the second compartment 15.

[0059] In one embodiment of the present invention, an indicator 16 is formed on an external surface of the substantially tubular container body 1, to help a user to apply pressure or transverse activation force to it, as schematically represented in Figure 7e. The indicator 16 may be one or more lines on a circumference of the tubular container body 1 in a position close to that where the partitioning unit 3 is located. In one example, the indicator 16 may be a raised feature on a circumference of the tubular container body 1. The indicator 16 may provide the user with a visual or tactile sensation.

[0060] During use, the user can first press or squeeze the tubular container body 1, preferably using the indicator 16, to press the partition unit 3 and separate the partition plate 32 from the partition ring 31. After the partition plate 32 is separated from the partition ring 31, the compositions in the first compartment 14 and the second compartment 15 can pass through the partition unit 3. The user can then shake the container 1000 to evenly mix the first and second compositions. When the first and second compositions are sufficiently mixed, the user can squeeze the tubular container body 1 in the normal manner, and the mixed compositions are then extruded for use.

[0061] Thanks to a double chamber dispensing container for dispensing two compositions in the mixed state according to the present application, fewer elements are used than with the use of two separate tubes to store two different formulas, use is easy due to the reduced pressure required to separate the partitioning unit, which is rather user-friendly, especially for elderly users, and airtight sealing and mixing of the two compositions are guaranteed thanks to the partitioning unit.

[0062] Aspects of this disclosure have been described in detail with reference to the illustrated embodiments; however, those skilled in the art will recognize that many modifications can be made to them without departing from the scope of this disclosure. This disclosure is not limited to the specific construction and compositions disclosed herein; all apparent modifications, changes, and variations to the preceding descriptions fall within the scope of the disclosure as defined by the accompanying claims. Moreover, these concepts expressly include all combinations and subcombinations of the preceding elements and features. LIST OF DIGITAL REFERENCES

[0063] 1 substantially tubular container body

[0064] 2 caps

[0065] 3 partitioning unit

[0066] 11 tip

[0067] 12 transverse joint

[0068] 13 opening

[0069] 14 first compartment

[0070] 15 second compartment

[0071] 16 indicator

[0072] 21 main body

[0073] 22 lid

[0074] 23 slot

[0075] 24 obviously

[0076] 31 partition ring

[0077] 32 partition plate

[0078] 40 template

[0079] 41 laser

[0080] 42 rotating laser arm

[0081] 51 filling nozzle

[0082] 52 retaining template

[0083] 53 filling nozzle

[0084] 311 skirt

[0085] 312 hollow cone

[0086] 313 window

[0087] 314 rib

[0088] 315 edge

[0089] 321 disk

[0090] 322 peripheral groove

[0091] 323 edge

[0092] 1000 double chamber dispensing container

[0093] SI axis of rotation

[0094] S2 central axis

Claims

Demands

1. A double-chamber dispensing container (1000) for dispensing two compositions in a mixed state, said container comprising: - a container body (1) substantially tubular, made of an elastically deformable material, having a lower end which is closed, and an end having an opening (13), in which the container body defines a chamber: - a cap (2) for closing the opening of the container body;- a partitioning unit (3) disposed inside the container body, between the lower end and the end having an opening, wherein the partitioning unit closes the substantially tubular container body along a peripheral edge thereof so as to separate the chamber into a first compartment (14) away from the lower end and a second compartment (15) near the lower end, wherein the first compartment is configured to contain a first composition, and the second compartment is configured to contain a second composition; - wherein the partitioning unit comprises a partitioning ring (31) and a partitioning plate (32) which are formed in one piece, and the partitioning plate is configured to be separated from the partitioning ring under the effect of a pressure or a transverse activation force exerted on the container body.

2. A double-chamber dispensing container according to claim 1, wherein the partition ring (31) and the partition plate (32) are formed in one piece by bi-injection or overmolding or are mechanically assembled under the effect of a force.

3. A double-chamber dispensing container according to claim 1 or 2, wherein the partition ring (31) is sealed transversely on the inner periphery of the substantially tubular container body (1), preferably by means of laser welding or ultrasonic welding.

4. A double-chamber dispensing container according to claim 1 or 2, wherein the partition ring (31) is made of the same material as the substantially tubular container body (1).

5. A dual-chamber dispensing container according to claim 1 or 2, wherein the substantially tubular container body (1) comprises, on its external surface, an indicator to assist a user in applying pressure or transverse activation force to it.

6. A double-chamber dispensing container according to claim 1 or 2, wherein the partition plate (32) is made of a first material and the partition ring (31) is made of a second material having a melting temperature lower than that of the first material, and optionally, the second material includes HDPE, and the first material includes PET.

7. A double-chamber dispensing container according to claim 1 or 2, wherein the partition plate (32) is formed with a peripheral groove (322) which has a depth in a direction perpendicular to a principal surface of the partition plate, and the partition ring has an edge (323) projecting along its perimeter, and the edge is configured to be snap-fitted into the peripheral groove, and preferably, one or more ribs extend diagonally into the partition ring.

8. A double-chamber dispensing container according to claim 1 or 2, wherein two slots (23) are arranged on the left and right sides of an external surface of the cap (2).

9. A method for producing a double-chamber dispensing container for dispensing two compositions in a mixed state, comprising: - supplying a partitioning unit (3) including a partitioning ring (31) and a partitioning plate (32), wherein the partitioning ring and the partitioning plate are formed in one piece by bi-injection or overmolding or are mechanically joined under the effect of a force; - supplying a substantially tubular container body (1), wherein the container body has a lower end that is open and an end having an opening (13) for dispensing; - laser welding or ultrasonic welding of the partitioning unit onto the substantially tubular container body, such that the partitioning ring is transversely sealed onto the inner periphery of the substantially tubular container body, in which the partitioning unit separates the tubular container body into a first compartment far from the lower end and a second compartment near the lower end; - filling the first compartment (14) with a first composition; - sealing the first compartment by closing a cap on the opening of the container body; - filling the second compartment (15) with a second composition; and - sealing the lower end, so as to form a transverse seal to seal the second compartment.

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