Multi component container

Abstract

A container, assembled from multiple components to hold various product forms including liquid, semi-liquid products, or flowable solids, comprises an outer body, a threaded neck, a collar that securely connects the outer body and neck, the container's base, and either a closure, seal, or a dispenser. The multicomponent container may be provided with barrier methods on the inner surface, which can be achieved by different methods including a liner, coating, impregnation, or bag-in-bottle. These multicomponent bottle parts can be manufactured from a single type of material or a combination of materials. Their design facilitates not only easy manufacturing and assembling but also effortless separation of different parts post-use, aiding in disposal or recycling when different materials are employed.

Description

MULTI COMPONENT CONTAINERFIELD OF TECHNOLOGY

[0001] The present technology relates to a container, assembled from multiple components to hold various product forms including liquid, semi-liquid, or flowable solids products.BACKGROUND

[0002] The concept of a modular container, made up of multiple components, presents a range of advantages. It provides design versatility by offering the ability to employ diverse materials for distinct parts, depending on their specific functions. For instance, certain components may demand enhanced strength, necessitating different materials or multiple layers, while others may not require such robustness. Furthermore, this modular approach allows for the integration of specific functionality within a nested body, such as insulation or a durability-enhancing outer body, along with an inner liner bag, internal rigid structure, or multiple compartments tailored to provide functionalities like protecting the container’s contents or providing an air-less dispensing option effectively. Modular containers have the potential to contribute significantly to sustainable practices by minimizing material consumption. By selectively utilizing materials where needed, these containers not only optimize functionality but also reduce overall material waste, making them eco-friendly options. Modularity can reduce the logistic costs related to shipping through reduced volume by designing the components to be nestable. Recycling is a vital sustainable option, especially for packaging. While employing composite material as layers, it poses challenges in sorting and separating materials for recycling. Hence, having an easily removable liner or a nested package in a modular form would be highly beneficial for disposal and recycling. Modular containers enhance the user experience by offering usability and convenience. They are easy to clean and provide options for various types of closures and fixtures like infusion systems.

[0003] Pulp containers are an attractive alternative to plastic containers, as plastic container waste poses a major environmental problem. Pulp containers require barrier properties to make them suitable for holding liquids, semi-liquids, or flowable solids to prevent the pulp wall from coming into direct contact with the liquid or semi-liquid inside or reduction of the product shelf life due to oxygen, water vapor, or other gas migration.Barrier properties for the pulp wall can be achieved by various methods, including spray coating, lamination of a barrier film lining as the inner layer, and impregnation. Bag-in- the-bottle is gaining importance in pulp container packaging as one of the options for providing barrier properties, enabling it to be suitable for holding various liquids, semiliquids, or flowable solids products and protecting both the pulp and the product inside. A pulp container also requires additional strength in the neck to withstand the pressure of handling, such as dispensing, opening and closing the closure connected to the neck, and to ensure stability when pouring out the contents. Similarly, the container bottom requires additional strength for drop and impact resistance. The above requirements for a pulp container can be achieved through modular design.

[0004] JP2009196644A, EP4211043A1, and US2011220652A1 , incorporated herein by reference, detail the design of modular bottles comprising various components such as the body, base, neck, and closure which, when assembled, form a complete bottle. Many of these designs necessitate specific features, such as flanges and ridges, on both the neck and the outer body for interlocking purposes. Often, these prior art designs incorporate multiple supplementary components to affix the neck to the body, and certain features that risk damaging the outer body, thereby complicating the manufacturing and assembly procedures.

[0005] With a multitude of benefits of modular containers and pulp containers, there is a need for a container design that is simple and effective, simplifying the manufacturing and assembly process.BRIEF SUMMARY

[0006] The present technology relates to a container constructed from several components, characterized by a simple design that facilitates effortless manufacturing and assembly. The container comprises an outer body, a threaded neck, a collar or a fastener ring, a base, and a closure or a dispenser.

[0007] The outer body (1 ) of the bottle comprises an upper body shoulder, a trunk body, an upper opening, and a lower opening. The outer body can be molded as a single piece or as multiple pieces which are joined by any suitable means. There is no requirement for additional features, such as flanges or ridges near the upper opening to attach the other components. The outer body may be uniformly constructed from asingle material or varied materials for each segment, including, but not limited to, thermoplastic resin, biopolymer, composite materials, fiberglass, and fiber pulp. Fiber pulp is preferred for producing eco-friendly bottle. Fiber pulp outer body can be formed by any known methods from wet fiber pulp or molding the blank of dry pulp.

[0008] The neck (2) is a hollow cylindrical part or a ring-like structure with a structured rim on its lower edge and threading on its upper edge. The diameter of the structured rim is greater than that of the upper opening of the outer body. Conversely, the threaded upper edge has a smaller diameter, allowing it to pass through the upper opening of the outer body. The neck can be constructed from any material which is rigid and suitable for injection or compression moulding or additive or subtractive manufacturing, including but not limited to thermoplastic resin, biopolymer, composite materials, fiberglass, and fiber pulp. Biopolymers like Polyhydroxyalkanoates (PHA) can be used for making eco-friendly container.

[0009] The collar (3) is a hollow cylindrical component with a mouth, an upper edge, and a projected portion on its lower edge. This projected portion features inner threads tailored to align with the threads on the neck that are exposed outside the outer body. The upper edge of the collar can be provided with structural features for engaging a closure or dispenser including, but not limited to, threading features compatible with hinged closures or snap-fit methods. The collar may have a skirt-like structure on the lower edge below the projected portion. This skirt smoothly flares on the outer body to provide seamless external finish. The collar can be constructed from any material which is rigid and suitable for injection or compression moulding or additive or subtractive manufacturing, including but not limited to thermoplastic resin, biopolymer, composite materials, fiberglass, and fiber pulp. Biopolymers like Polyhydroxyalkanoates (PHA) can be used for making eco-friendly container. The collar and neck are preferably made of the same material.

[0010] The base (4) has two base pieces that are joined together. In one aspect of the present technology, the inner base piece has reinforcement ridges that add robustness for enhancing strength, drop and impact resistance. The outer base piece, which is attached on the outside of the inner base piece, has the side curved wall of height lesser than that of the wall of inner base such that a part of the wall of the inner base is visible outside. The diameter of the inner base piece is slightly smaller than thatof the lower opening of the outer body, enabling it to fit inside the outer body snugly. The base is attached to the outer body by suitable joining means, including but not limited to adhesive, welding or snap-fit method. The base may have any suitable shape on the lower side which helps the container to have good balance to stand freely on a no surface. Shapes may include but are not limited to flat surface or multiple heel structures. The base can be made of any suitable material, including but not limited to thermoplastic resin, biopolymer, composite materials, fiberglass, and fiber pulp. The outer body and the base can be made of same material. Fiber pulp is preferred for producing an eco-friendly container. The fiber pulp base can be formed by any known115 methods from wet fiber pulp or molding the blank of dry pulp.

[0011] The body can be provided with barrier properties (6) on the inner surface enabling it to be suitable for holding various forms of products including but not limited to liquid, semi-liquid, or flowable solid products and protecting both the outer body and120 the product inside. Barrier properties can be achieved by different methods including but not limited to a liner, coating, immersion, impregnation, and inner nested container like a rigid container or bag-in-bottle. The liner can be attached by various methods, including being laminated to the interior or formed via blow moulding. The coating includes but is not limited to spray emulsion coating. The barrier can be made of any125 suitable material, including but not limited to thermoplastic resin, biopolymer, composite materials, alloys, etc.

[0012] The cylindrical stiffener (9) is a structure with the shape of the interior of the outer body (1 ) has multiple structural ribs on its surface to provide robust strength to the130 outer body and acts as secondary inner body. The cylindrical stiffeners (9) can be formed as a single piece or as multiple pieces (9a, 9b) with or without a base portion. The cylindrical stiffeners (9) can be made of any suitable material including but not limited to thermoplastic resin, biopolymer, composite materials, and fiberglass and fiber pulp. The cylindrical stiffeners (9) can be made of the same material or different135 materials as that of the outer body (1 ). Fiber pulp is preferred for producing an eco- friendly bottle with fiber pulp outer body. Fiber pulp cylindrical stiffeners (9) can be formed by any known methods from wet fiber pulp or molding the blank of dry pulp. Cylindrical stiffeners are made to be held tight against the inner surface of the outer body (1 ) and attached to the inner surface of the outer body (1 ) by any suitable methods140 including but not limited to adhesive means.

[0013] The closure, seal, or a dispenser (5) of the container can be attached to the upper edge of the neck by any suitable means depending on the type of closure, seal, or a dispenser, including but not limited to screw cap, snap-fit or hinged caps, seal, or dispensers like pumps. The closure or dispenser can be provided with a tamper-evident ring. The closure, seal, or the dispenser can be made of any suitable material, including but not limited to thermoplastic resin, biopolymer, composite materials, metal, fiber pulp, etc.

[0014] The assembly of the container described in this present technology involves the following steps. First, the outer body is formed, either as a single molded piece or by combining multiple parts such as the shoulder and trunk body. The neck is then introduced through the lower opening of the outer body. Its threaded upper portion emerges through this opening, allowing the structured rim to sit flush against the periphery of the outer body's upper opening. The outer body's edge adjacent to this upper opening rests on the structured rim. When the collar or a fastening ring is attached, by screwing onto the neck, the portion of the outer body adjacent to the upper opening is compressed between the neck and the collar. The screwing continues until sufficient compression is achieved. This operation effectively secures the connection between the outer body, neck, and collar. This design negates the need for additional structural features such as flanges, ridges, or slots on the outer body for attaching it to the neck or collar. The simple threading alone ensures a secure and efficient attachment. Subsequently, the base is affixed to the outer body's lower opening using appropriate methods. Finally, the closure, seal, or dispenser is attached to the collar's upper edge, thereby sealing the collar's mouth.BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following figures are included to illustrate certain aspects of the embodiments and should not be viewed as exclusive embodiments. The subject matter disclosed is capable of considerable modifications, alterations, combinations, and equivalents in form and function, as will occur to those skilled in the art and having the benefit of this disclosure.

[0016] FIG 1 depicts an embodiment of the multi-component container highlighting its key components.

[0017] FIG 2 illustrates the outer body, showcasing parts like the shoulder, trunk, and upper and lower openings.

[0018] FIG 3a presents the neck with its threaded upper edge and structured rim on the lower edge.

[0019] FIG 3b details how the neck is inserted through the outer body, moving towards its upper opening.

[0020] FIG 4a provides a view of the collar, highlighting the mouth, upper edge threads, projected part, and skirt. Another one offers an interior view of the collar, emphasizing the inner threads.

[0021] FIG 4b demonstrates the collar's assembly atop the body's shoulder.

[0022] FIG 5a presents the designs of both the inner and outer base pieces.

[0023] FIG 5b shows the inner base with its reinforcing ridges from both interior and exterior perspectives.

[0024] FIG 5c and 5d depict the assembly process for the base pieces and their positioning relative to the outer body's lower opening.

[0025] FIG 6a exhibits a cup-shaped base piece without reinforcing ridges on the inner base.

[0026] FIG 6b showcases another base piece shape with heels, again without reinforcing ridges on the inner base.

[0027] FIG 7a offers a view of the assembled outer body, neck, and collar.

[0028] FIG 7b details the fully assembled bottle, combining the outer body, neck, collar, and base.

[0029] FIG 8a shows an embodiment of the bottle with a fastening ring instead of a collar.

[0030] FIG 8b depicts the modified neck design tailored for the fastening ring, featuring a longer upper edge.

[0031] FIG 8c illustrates the method to fasten closures or dispensers onto the neck using the fastening ring.

[0032] FIG 8d demonstrates the final assembly of the bottle with the fastening ring, neck, and the outer body.

[0033] FIG 9a and 9b illustrate an embodiment that utilizes an inner flexible bag as the barrier method.

[0034] FIG 10a showcases inner cylindrical stiffeners in exploded view.

[0035] FIG 10b showcases inner cylindrical stiffener and in their assembled form.DETAILED DESCRIPTION OF THE PRESENT TECHNOLOGY

[0036] Other objects and advantages of the present technology will become apparent from the following detailed description of the preferred embodiments thereof in connection with the accompanying drawings in which Figures 1 to 10b explains the inventive features of multi component container.

[0037] The key components of multi component container according to the present technology, its design and the manner in which they are assembled shall be explained in detail with respect to Figures 1-10b. While aspects of the described multi component container can be implemented with any number of additional components like gaskets and other functional or ornamental fitments like infusing elements, the embodiments are described in the context of the following exemplary components.

[0038] Accordingly, various embodiments in the following description have been provided in the context of a design and assembling of multi component container. Itwould be appreciated that such examples have been provided for ease of understanding and are not to be construed as a limitation in any way.

[0039] FIG 1 provides an exploded view of the multi-component container, showcasing its key components, as detailed in one embodiment of the current present technology. The container (10) comprises an outer body (1 ), neck (2), collar (3), base (4) with its inner (4a) and outer base pieces (4b), and a closure (5).

[0040] FIG 2 provides a schematic representation of the outer body (1 ) in one embodiment. Here, the outer body can be molded as a single piece comprising a shoulder (1a), trunk (1 b), upper opening (1c), and lower opening (1d).

[0041] In a different embodiment, the outer body (1 ) can be molded as separate pieces, such as two halves of the trunk and a distinct shoulder piece. These can be subsequently joined to constitute the complete outer body (1 ) by any known joining techniques.

[0042] FIG 3a and 3b provide a schematic representation of the neck's (2) design in one embodiment. In this depiction, the neck is of shorter stature, serving as a connecting element between the collar (3) and the outer body (1 ). The neck features a threaded upper edge (2a) and a structured rim (2b) on its lower edge. The structured rim (2b) possesses a diameter larger than the upper opening (1c) of the outer body (1 ), while the threaded upper edge (2a) is designed with a smaller diameter, allowing it to traverse through the upper opening (1c). For assembly, the neck (2) is introduced via the outer body's lower opening (1 d), allowing the threaded upper edge (2a) to emerge outside the outer body (1 ) through the upper opening (1c) while the structured rim (2b) rests against the inner circumference of the upper opening (1c).

[0043] FIG 4a and 4b provide a schematic representation of the collar's (3) design according to a particular embodiment. The collar (3) is a hollow cylindrical component with distinct features: a mouth (3a), an upper edge (3b) threaded to accommodate closures or dispensers, and a projecting portion (3c) on its lower edge with inner threads (3d). These threads (3d) are designed to engage with the neck's threads (2a) that protrude outside the outer body (1). The collar (3) has a skirt (3e) on the lower edgeadjacent to the projected portion (3c) that smoothly flares on the outer body (1 ) to provide seamless external finish.

[0044] FIGs 5a, 5b, 5c, and 5d depict the design of the base (4) in one embodiment. The base comprises an inner piece (4a) and an outer piece (4b). The inner base piece (4a) is equipped with reinforcing ridges, enhancing its robustness and resistance to drops and impacts. When assembled, the outer base piece (4b) is positioned outside the inner base piece (4a). Its curved wall is shorter in height compared to that of the inner base (4a), revealing a portion of the inner base's wall. The diameter of the inner base piece (4a) is designed to be slightly smaller than the lower opening (1 d) of the outer body, ensuring a snug fit. To secure the base (4) to the outer body (1 ), various joining methods can be employed, such as adhesive bonding, welding, or snap-fit mechanisms.

[0045] FIGs 6a and 6b present the design of the base (4) in a different embodiment. The base consists of an inner piece (4a) and an outer piece (4b). These two pieces can be joined using various methods, including adhesive bonding. The inner base piece (4a) is uniformly flat without any reinforcing ridges. This simple design ensures strength and stability. The outer base piece (4b) is positioned outside the inner piece (4a). Its curved wall has a shorter height, revealing a segment of the inner base's wall when assembled. The inner base's diameter is slightly smaller than the lower opening (1d) of the outer body, allowing for a tight fit. Joining the base (4) to the outer body (1 ) can be accomplished using methods like adhesive bonding, welding, or snap- fit mechanisms.

[0046] FIGs 7a and 7b depict the assembly of the container's upper portion and the complete container, respectively, in a particular embodiment. The neck (2) and collar (3) are attached to the outer body (1 ) on the upper part by means of aligning the inner threads (3d) of the collar (3) and the threads on the upper edge of the neck (2a). A portion of the outer body near the upper opening (1 c) is sandwiched between the collar's projected portion (3c) and the neck's structured rim (2b). Subsequently, the base (4) is secured to the outer body's lower opening (1 d).

[0047] FIGs 8a-8d present a schematic illustration of a multi-component container in an alternate design embodiment, comprising an outer body (1 ), a neck (8), and afastening ring (7). The neck (8) is designed with a structured rim (8c) at its lower edge and threading (8d) on its upper edge (8b). The diameter of the structured rim (8c) is larger than the upper opening (1 c) of the outer body (1 ), whereas the threaded upper edge (8b) has a smaller diameter, allowing it to pass through the said upper opening (1c). To assemble, the neck (8) is inserted upwards from the lower opening (1d) of the outer body (1 ). As it is inserted, the threaded upper edge (8b) emerges through the upper opening (1c), protruding outside the outer body (1 ), with the structured rim (8c) resting against the interior circumference of the upper opening (1 c). This design gives the neck (8) a pronounced threaded upper edge, eliminating the need for collar threads present in other embodiments. The fastening ring (7) is equipped with inner threads (7c) and a skirt (7b) on the lower edge. The fastening ring (7) has a height adequate to securely engage with the threads on the neck's lower edge (8d). While the threads on the neck's upper edge (8b) remain available for attaching a closure, seal, or dispenser. This arrangement efficiently utilizes the same threads on the neck for both the fastening ring and the closure or dispenser.

[0048] FIG 9a and 9b showcase the schematic depiction of the multi-component container in a specific embodiment that utilizes a flexible inner bag (6) as its barrier mechanism. The opening or mouth of this inner bag is securely affixed to the structural rim (either 2d or 8c) of the neck (either 2 or 8). Various attachment methods can be employed to achieve this, including but not limited to adhesive bonding or fusing.

[0049] FIG 10a and 10b depict the schematic depiction of the multi-component container in a different embodiment. This design comprises an outer body (1 ), neck (2), collar (3), bottle base (4), a closure (5), and cylindrical stiffeners (9).Embodiment 1

[0050] In this embodiment, the multiple components of the container (1 ) are assembled either by forming the outer body as a single molded piece or by connecting distinct parts, namely the shoulder (1a) and the trunk body (1 b). The neck (2) is introduced through the lower opening (1d) of the outer body (1 ). The threaded upper portion (2a) of the neck extends through the upper opening (1c), allowing the structured rim (2b) to rest against the periphery of this opening. The edge of the shoulder (1a) is positioned on the structured rim (2b), which results in the external presentation of the threaded upper edge (2a) of the neck. The collar (3) is subsequently screwed onto theneck (2) until the end of its threads, causing the section of the outer body near the upper opening to be firmly clamped between the neck's rim (2b) and the projected section (3c) of the collar. This configuration negates the need for structural elements like flanges or ridges on the outer body (1 ) for its connection to the neck (2) or collar (3). The base (4), comprising inner (4a) and outer (4b) base pieces, is affixed to the lower opening (1 d) of the outer body using methods such as adhesive, welding, or snap-fit. Part of the wall of the inner base piece (4a) remains visible externally when both base components are connected due to the shorter height of the outer base piece's curved wall (4b). The inner base piece (4a) has a wall diameter slightly smaller than the lower opening (1 d), ensuring a snug fit inside the outer body. Lastly, a closure, seal, or dispenser is secured to the collar's upper edge (3b) using suitable methods.Embodiment 2

[0051] In this embodiment, the multi-component container (1 ) is assembled either by molding the outer body as a single piece or by joining distinct sections, such as the shoulder (1 a) and trunk body (1 b). The neck (8) is introduced from the lower opening (1d) of the outer body (1 ). Its threaded upper edge (8b) extends through the upper opening (1c), remaining external to the outer body, while the structured rim (8c) rests against the interior periphery of the upper opening (1 c). The edge of the shoulder (1a) is positioned on this structured rim (8c), displaying the threaded upper edge (8b) of the neck externally. The fastening ring (7), which features inner threads (7c) and a skirt (7b) on its lower edge, is screwed in such a manner that its inner threads (7c) mate with the threads (8d) of the neck's lower edge. This ensures that the segment of the outer body near the upper opening, which rests on the structured rim, is securely sandwiched between the neck's rim (8c) and the fastening ring (7), thus affixing the outer body, neck, and fastening ring together. This configuration eliminates the requirement for structural attributes like flanges or ridges on the outer body (1 ) for its connection to the neck (8) or fastening ring (7), relying solely on threading for attachment. The base (4), comprising inner (4a) and outer (4b) base pieces, is connected to the outer body's lower opening (1 d) using methods such as adhesive, welding, or snap-fit. The outer base piece (4b) is positioned externally to the inner base piece (4a), its shorter curved wall revealing a part of the inner base piece's wall (4a) when both are assembled. The inner base piece (4a) has a wall diameter slightly less than the lower opening (1 d), ensuring a tight fit inside the outer body. A closure, seal, or dispenser is finally attached to the neck's upper edge for sealing purposes.Embodiment 3

[0052] The multi-component (1 ) assembly can be based on the configurations described in either Embodiment 1 or Embodiment 2. The cylindrical stiffener (9) is affixed to the inner surface of the outer body (1 ). The cylindrical stiffener (9) is securely attached to the inner surface, using methods such as adhesive or other suitable means. The attachment of the neck (either 2 or 8), and the collar (3) or fastening ring (7) remains consistent with the methods described in Embodiments 1 and 2. For the base, one of the designs illustrated in FIG 5(a), FIG 6(a), or FIG 6(b) may be used based on specific needs. If the cylindrical stiffeners come with integrated base sections, they can function as the inner base piece, eliminating the necessity for an additional separate base component.Embodiment 4

[0053] Eco-friendly multiple component container (1 ) can be based on the configurations of Embodiment 1 , 2, or 3, the outer body (1 ), cylindrical stiffeners (9), and base (4) are constructed from fiber pulp. Meanwhile, the neck (either 2 or 8), collar (3), closure, seal, or dispenser (5), and any barrier methods utilized are constructed from biopolymers, specifically Polyhydroxyalkanoates (PHA), and biopolymer-based composites.Embodiment 5

[0054] The multiple component container (1 ), as per Embodiment 1 or 2, an inner flexible bag is used as the barrier method (6). This bag's mouth is affixed to the structural rim (either 2d or 8c) of the neck (either 2 or 8) using various potential joining techniques, such as adhesive or welding. In this setup, both the outer body (1 ) and the base (4) are crafted from fiber pulp. Conversely, the neck (either 2 or 8), collar (3), closure, seal, or dispenser (5), and any employed barrier methods are made from a biopolymer, specifically Polyhydroxyalkanoates (PHA), and biopolymer-based composites.

Claims

CLAIMS:1 . A multicomponent container, assembled from multiple parts, comprising:• an outer body comprising an upper body shoulder, a trunk body, an upper opening, and a lower opening molded as a single piece or as multiple pieces and attached together;• a neck, a portion of which with a structured rim on the lower edge of the neck is located inside the outer body, has threading on the upper edge of the neck and is exposed outside the outer body and adjacent to the outer surface of the top opening in the outer body;• a collar featuring a mouth, an upper edge provided with structural features for engaging a closure, seal, or dispenser, and a projected portion with inner threads designed to mate with the threads on the neck, and allowing it to sit above the outer body;• a base, constructed from two base pieces joined together as a double skin, with an inner base piece and an outer base piece.• a closure, seal, or a dispenser for the container; and• a barrier method on the interior of the container.

2. A multicomponent container, assembled from multiple parts, comprising:• an outer body comprising an upper body shoulder, a trunk body, an upper opening, and a lower opening molded as a single piece or as multiple pieces and attached together;• a neck, a portion of which with a structured rim is located inside the outer body, has threading on the section that is exposed outside the outer body and adjacent to the outer surface of the top opening in the outer body;• a collar featuring a mouth, an upper edge provided with structural features for engaging a closure, seal, or dispenser, and a projected portion with inner threads designed to mate with the threads on the neck, allowing it to sit above the outer body;• a cylindrical stiffener with multiple structural ribs on the surface, placed on the inner side of the outer body to enhance the strength of the container;• a base, constructed from two base pieces joined together as a double skin, with an inner base piece and an outer base piece;• a closure, seal, or a dispenser for the container; anda barrier method on the interior of the container.

3. An eco-friendly multicomponent container, assembled from multiple parts, comprising:• an outer body comprising an upper body shoulder, a trunk body, an upper opening, and a lower opening molded as molded as a single piece or as multiple pieces using eco-friendly material;• a neck, a portion of which with a structured rim is located inside the outer body, has threading on the section that is exposed outside the outer body and adjacent to the outer surface of the top opening in the outer body, and is constructed using biopolymer or other eco-friendly composite materials;• a collar featuring a mouth, an upper edge provided with structural features for engaging a closure, seal, or dispenser, and a projected portion with inner threads designed to mate with the threads on the neck, allowing it to sit above the outer body, and is constructed using biopolymer or other eco-friendly composite materials;• a base, constructed from two base pieces joined together as a double skin, with an inner base piece and an outer base piece, and is made from eco-friendly material;• a closure, seal, or a dispenser for the container, constructed using biopolymer, metal, or other eco-friendly composite materials; and• a barrier method on the interior of the container and is made from biopolymer or other eco-friendly composite materials.

4. An eco-friendly multicomponent container, assembled from multiple parts, comprising:• an outer body comprising an upper body shoulder, a trunk body, an upper opening, and a lower opening molded as molded as a single piece or as multiple pieces using eco-friendly material;• a neck, a portion of which with a structured rim is located inside the outer body, has threading on the section that is exposed outside the outer body and adjacent to the outer surface of the top opening in the outer body, and is constructed using biopolymer or other eco-friendly composite materials;• a collar featuring a mouth, an upper edge provided with structural features for engaging a closure, seal, or dispenser, and a projected portion with innerthreads designed to mate with the threads on the neck, allowing it to sit above the outer body, and is constructed using biopolymer or other eco-friendly composite materials;• a cylindrical stiffener with multiple structural ribs on the surface, placed on the inner side of the outer body to enhance the strength of the container, and is constructed using eco-friendly material, biopolymer or other eco-friendly composite materials. The cylindrical stiffener can be made of same material or different materials as that of the outer body;• a base, constructed from two base pieces joined together as a double skin, with an inner base piece and an outer base piece, and is made from eco-friendly material;• a closure, seal, or a dispenser for the container, constructed using biopolymer, metal, or other eco-friendly composite materials; and• a barrier method on the interior of the container and is made from biopolymer or other eco-friendly composite materials.

5. The container according to any one of claims 1 to 4, wherein the neck has an upper edge with threading of diameter smaller than that of top opening and therefore it passes through the top opening and stay outside the outer body when inserted from inside via the lower opening.

6. The container according to any one of claims 1 to 4, wherein the neck has a structured rim around its circumference at the lower end and diameter bigger than that of top opening and therefore abuts the inner side of the top opening in the outer body when inserted from inside via the lower opening.

7. The container according to any one of claims 1 to 4, wherein the collar has a projected portion on the lower edge, has the inner threads such that it can be mated to the thread on the neck with the portion of the outer body adjacent to the outer opening is sandwiched between the neck and collar and thereby held firmly.

8. The container according to any one of claims 1 to 4, wherein the collar has a skirt on the lower edge that smoothly flares on the outer body to provide seamless external finish.

9. The container according to any one of claims 1 to 4, where in the base, constructed from two base pieces joined together as a double skin, with an inner base piece furnished with reinforcing ridges and a flat outer base piece.

10. The container according to any one of claims 1 to 4, has an outer base aligned on the outside of the inner base with the side curved wall of height lesser than that of the wall of inner base such that a part of the wall of the inner base is visible outside.11 . The container according to any one of claims 1 to 4, the diameter of the wall of the inner base is slightly smaller than that of the lower opening enabling it to fit inside the outer body snugly.

12. The container according to any one of claims 1 to 4, wherein the base is attached to the outer body by suitable joining means including but not limited to adhesive, welding or snap-fit method.

13. The container according to any one of claims 1 to 4, wherein interior surface of the outer body is provided with barrier method enabling it to be suitable for holding various product forms including but not limited to liquid, semi-liquid, or flowable solids products and protecting both the outer body and the product inside.

14. The container according to claim 13, wherein the barrier method can include but is not limited to liner, coating, impregnation, or bag-in-bottle.

15. The container according to claim 13, wherein the barrier method is an inner flexible bag.

16. The container according to claim 15, wherein the inner flexible bag is attached to the structured rim of the neck by suitable joining means including but not limited to adhesive or welding.

17. The container according to any one of claims 1 to 4, wherein the collar has threads as structural features on the upper edge that can be used to attach a screw cap.

18. The container according to claim 3 or 4, wherein the outer body is made from eco-friendly material like fiber pulp or similar natural material.

19. The container according to claim 3 or 4, wherein the neck is made from biopolymer, biopolymer-based composites, or other eco-friendly composite materials suitable for injection or compression moulding or additive or subtractive manufacturing.

20. The container according to claim 19, wherein the biopolymer is Polyhydroxyalkanoates (PHA).21 . The container according to claim 13, wherein the barrier methods are made from biopolymer, biopolymer-based composites, or other eco-friendly composite materials suitable for holding for holding various product forms including but not limited to liquid, semi-liquid, or flowable solid products and impart barrier properties.

22. The container according to claim 21 , wherein the biopolymer is Polyhydroxyalkanoates (PHA).

23. The container according to claim 15, wherein the inner flexible bag is made from Polyhydroxyalkanoates (PHA).

24. The container according to claim 3 or 4, wherein the collar is made from biopolymer or other eco-friendly composite materials suitable for injection or compression moulding or additive or subtractive manufacturing.

25. The container according to claim 24, wherein the biopolymer is Polyhydroxyalkanoates (PHA).

26. The container according to claim 3 or 4, wherein the two base pieces are made from eco-friendly material like fiber pulp or similar natural material.

27. The container according to claim 2 or 4 wherein the cylindrical stiffener is made from eco-friendly material like fiber pulp or similar natural material.

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