Packaging containers

EP4601958A4Pending Publication Date: 2026-03-18NAIR HARIHARAN KRISHNAN
View PDF 3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2026-03-18

AI Technical Summary

Technical Problem

Conventional packaging containers, such as plastic bottles, are rigid and environmentally expensive to manufacture, lacking the flexibility and aesthetics of flexible tubes while also limiting the incorporation of various materials and surface decorations.

Method used

The development of a crimp-less flexible packaging container with a stable and flat base, utilizing a NEOSeam side-seaming technology for seamless bonding, which allows the container to stand on its own and provide enhanced product holding capacity with reduced material usage.

Benefits of technology

The crimp-less packaging container achieves a higher inside volume and reduced weight compared to traditional rigid bottles, while maintaining stability and allowing for bidirectional filling options, thus addressing the limitations of conventional packaging containers.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure IN2024052346_12062025_PF_FP_ABST
    Figure IN2024052346_12062025_PF_FP_ABST
Patent Text Reader

Abstract

The present subject matter related to packaging containers (100). In an example, the packaging container (100) includes a hollow body (102) having a top end (108) and a bottom end (110). The hollow body (102) 5 includes a first opening (112) at the top end (108) and a second opening (114) at the bottom end (110) and is fillable with a material via the first opening (112). The hollow body (102) is closable by closing means.
Need to check novelty before this filing date? Find Prior Art

Description

PACKAGING CONTAINERSFIELD OF INVENTION

[0001] The present subject matter relates, in general, to packaging containers, and, particularly but not exclusively, to crimp-less flexible or squeezable tube packaging containers with better aesthetics, functionality and capable of standing on its own.BACKGROUND

[0002] A packaging container is generally used for holding various semi-solid media, such as liquids, gels, creams, and various oral care, skincare, and makeup products such as foundation, moisturizer, sunscreen lotion, petroleum products, etc. The packaging container is a hollow structure generally closed at one end and having an opening at another end. The packaging container is made of a flexible material which primarily consists of body for product storage and an opening for dispensing. In an example, the packaging container may have a tubular shape. The flexible material may be one of, but is not limited to, plastics, metals, and paper or mix of these materials.BRIEF DESCRIPTION OF DRAWINGS

[0003] The following detailed description references the drawings, wherein:

[0004] FIG. 1 A illustrates a packaging container without a closing means, according to different implementations of the present subject matter,

[0005] FIG. 1 B illustrates a packaging container with a closing means, according to different implementations of the present subject matter

[0006] FIGS. 2A to 2C illustrate views of the packaging container which shows a design type of a bottom closing means according to an example implementation of the present subject matter,

[0007] FIGS. 3A to 3C illustrate a bottom end of the packaging container having another design type of a bottom closing means, according to another example implementation of the present subject matter,

[0008] FIGS. 4A to 4G illustrate a bottom end of a packaging container having another design type of a bottom closing means, according to another example implementation of the present subject matter, and

[0009] FIG. 5 illustrates a side view of a bottom end of a packaging container having another design type of a bottom closing means, according to another example implementation of the present subject matter.

[0010] FIG. 6 illustrates a method for making a Lami-tube, according to an example.

[0011] FIG. 7 illustrates a method for making a Seamless tube, according to an example.

[0012] FIG. 8 illustrates a method for making an Injection Molded- tube, according to an example.DETAILED DESCRIPTION

[0013] Packaging containers (for example, a regular plastic bottle) that can stand vertically on their own are generally made of rigid material having thickness, for example, approximately 1 to 4 mm, such as plastic and optionally with a layer of metal. Generally, such packaging containers are environmentally expensive to manufacture, especially in the current context of plastic source reduction, as the material quantity required iscomparatively more than what is required to manufacture a flexible tube, which can have a thickness, for example, approximately from 0.175 mm to 0.70 mm. One such example of the flexible tube may be made of a laminate and can be referred to as lami-tube hereinafter. In addition, the squeezing feature is missing in rigid packaging containers due to the usage of the rigid material with a higher thickness. Means, the existing packaging containers, for example, plastic bottles which can stand on their own do not provide a squeezing capability. In addition, the plastic bottles have limitation in ease of incorporation of various materials / polymers in their layers to meet the required properties, such as barrier, rigidity, and color, etc. and also have limitation in terms of surface aesthetics due to the 3 dimensional printing of plastic bottles.

[0014] Conventional lami-tube packaging containers for storing medicinal or cosmetic or oral-care products are manufactured by a variety of plastic conversion processes namely, film and / or laminate making processes, such as a blown / cast film process, lamination, tube forming, etc. In the blown film process, a resin component which is usually in the form of pellets is fed into an extruder through a hopper for melting and mixing. The melted resin is blown as a bubble film by means of an annular die. The final product is a roll of blown film. Further, the blown films may undergo a lamination process (optionally along with other webs / plies of paper or foil) for producing a laminate having required properties and thickness. In an example, the flat laminate may then be printed / decorated (2 dimensional printing) with desired text and images. The flat surface of the laminate provides printing versatility in terms of surface aesthetic and printing technologies. The decorated laminate in the form slit reels of appropriate width is then developed in the form of a tubular shell (sleeve portions) further augmenting with a shoulder through a tube making process. This kind of product is known as a lami-tube and depending upon the barrier, two broadcategories can be named as Aluminum Barrier Laminate Tubes and Polymeric Barrier Laminate Tubes.

[0015] The tubular shell has two closable ends, viz., a top end and a bottom end. The top end is the narrowest and highest part of the body of the tubular shell, where, in an example, the shoulder is also molded or welded. The bottom end is the lowermost part of the body of the tubular shell, if positioned in an upright manner. A cap disposed at the top end closes the top end while leaving the bottom end open for filling with a material. In an example, the material can be a liquid material or a powdered material or a semi-solid material. In a particular example, the material can be a cosmetic or a medicinal or an oral-care product, hereinafter referred to as the product. Once the tubular shell has been filled with the product, the bottom end is closed, for example, by a crimping / end-sealing process.

[0016] The crimping process deforms the tubular shell thereby reducing the volume, and hence reducing the amount of the product that can be contained, while also limiting how the filled packaging container can be stored. For example, due to the crimped end of the tubular shell, it cannot stand on its own, to vertically support weight of the products inside the same. Thus, the conventional tubular packaging container has to be placed either in horizontal direction or alongside a supporting surface or in an additional carton box or by using a stand-up / flip-top cap.

[0017] Thus, there is a demand for modified packaging containers having increased volume while maintaining the aesthetics. The modified packaging containers should also have the ability to balance the container’s body on its bottom end while using a substantially similar material quantity being used to manufacture a tubular packaging container. Accordingly, there remains a need for improved design of packaging containers which is amenable to current manufacturing processes (equipment infrastructure of product filling lines) of the end customer (Fast moving consumer goodsFMCG companies). This will contribute to overall plastic reduction targets and helps to fulfill Environmental, social, and governance (ESG) Goal number 12-Responsible Consumption and Production.

[0018] To fulfill the aforesaid requirement, the lami-tube with an extra part suitably joined at the bottom by snap-fitting, screwing, welding, adhesive joining, etc., would provide the solution to the problems persisting with the conventional rigid packaging containers. The provision of the extra part at the bottom reduces the overall plastic weight for the packaging container by making the wall thinner at the same time remaining in the same bottle format. In addition, the packaging container can stand on its own and inherently suitable for the same filling station existing at the end customer namely product fillers-FMCG. The packaging container can stand on its own and provide more storage space like a bottle and at the same time brings in the benefits of lami-tube such as ease of incorporation different materials, versatile surface decoration, squeeze-ability and lower plastic weight per package.

[0019] The finished lami-tubes (in an example, closed at bottom end and having molded shoulders with broader mouth at the top end) can be provided to product manufacturing companies for filling in the product, such as easy flowing liquid material. For example, the material can be cosmetic or medicinal products or oral-care products.

[0020] Various implementations of the present subject matter describe a packaging container having a stable and flat base. The packaging container of the present subject matter, due to its different geometry, has enhanced product holding capacity or high inside volume as compared to the crimped tubular shell and also less weight compared to rigid bottles.

[0021] In an example implementation, the packaging container (herein the packaging container may be referred to as a crimp-lesspackaging container) includes a tubular hollow body (hereinafter may be referred as sleeve), a shoulder, a first closing means, and a second closing means. In an example, the shoulder may include a neck. The hollow body of the packaging container holds the product to be filled and may be cylindrical, rectangular, or any other shape depending on the design and purpose of the container. The hollow body includes a top end and a bottom end. The top end of the hollow body includes a first opening, and the bottom end of the hollow body incorporates the second closing means. The second closing means is a bottom closing means. In an example, the second closing means is weldable. In an example, the second closing means may be detachably attached. In an example, the second closing means may be fixedly attached using an adhesive. The material to be filled may be a liquid material, a powdered material, and a semi-solid material. For example, the powdered material may be filled via the first opening at the top end with the bottom end closed.

[0022] The advantage of the packaging container of the present invention is the flexibility whilst having format like a bottle made of a rigid material. The tubular hollow body may be manufactured by the NEOSeam side-seaming technology. The NEOSeam seal refers to the process used in the NEOSeam side-seaming technology for creating nearly invisible side seams in laminate tubes. This sealing method employs advanced techniques to ensure high durability, improved aesthetics, and functionality.

[0023] The NEOSeam seal provides additional advantages such as seamless bonding, , visual appeal, durability, and eco-friendly potential. Seamless bonding implies that the edges of the laminate material are precisely aligned and bonded using heat and pressure, thus creating a strong, durable seal that is flat and nearly invisible. Enhanced waterproofing ensures that the laminate tube is leakproof, thus making it ideal for liquid or cream-based products. Visual appeal refers to the smooth seam that allows for uninterrupted 360-degree artwork, thus improving the tube’s brandingpotential. Durability implies that the bonded seam is resistant to splitting, thus ensuring longevity during storage and use. Eco-friendly potential implies that NEOSeam seals are compatible with recyclable laminate materials, thus aligning with sustainable packaging trends.

[0024] The manufacturing process for creating the tubular hollow body using a NEOSeam sealing technology involves precise steps that ensure high-quality, seamless laminate tubes. The process steps may include material preparation, edge alignment, heat and pressure sealing, shaping the sleeve, finishing, quality control and integration into tube.

[0025] Material preparation may involve sourcing high-quality laminate sheets and cutting the sheets into predefined dimensions according to the sleeve size. Edge alignment may include preparing the edges of the laminate sheet for binding. This step is critical to ensure a clean and precise seam. The alignment process may ensure there is no overlap or misalignment, which is key to the seamless appearance.

[0026] Heat and pressure sealing may include fusing the edges using a combination of heat and pressure in a specialized sealing machine. The sealing process may ensure a strong, durable bond without creating a visible seam. After sealing, the laminate sheet may be formed into a cylindrical sleeve. Shaping the sleeve may involve rolling the bonded sheet and confirming the integrity of the seam. Excess material may be trimmed to create clean edges.

[0027] Quality control involves inspecting each sleeve for seam visibility and durability. Leak tests may be conducted for tubes intended for liquid or cream products. The finished sleeve may typically be combined with a molded shoulder and cap to create the final product.

[0028] The packaging container of the present invention ensures the possibility of two filling routes. That is to say, based on the requirement ofthe material to be filled, such as viscosity, the packaging container may be filled either from the top end or from the bottom end. In an example where the material is to be filled from the bottom end, the top end of the tubular hollow body is closed by the first closing means and thus leaving the bottom end open for the filling.. In an example where the material is to be filled from the top end, the bottom end can be closed with the bottom closing means, i.e., the second closing means thus leaving the top end open for the filling. Thereby ensuring the possibility of dual filling options depending on the requirements of products to be filled. The optional filling capability of the packaging container ensures that the material of any kind, i.e., any viscosity, consistency, density can be filled in the same packaging container. For example, if the material demands top filling to be done, the conventional top filling setup can be utilized as it is, for those which demand the bottom filling, can be used with minor modifications in the filling setup. In both the filling scenarios (top filling and bottom filling), the volume stored in the packaging container is higher than being stored in a packaging container having a crimped bottom end.

[0029] Further, the shoulder refers to the part where the hollow body of the packaging container narrows to form the top end. In an example, for the packaging container having the neck, the shoulder extended upward and forms the neck and further the neck forms the top end, i.e., the first opening. The shoulder fits around the first opening of the top end by extending upward from a first peripheral edge of the first opening to form a third opening. In an example, the third opening may be at a centre of the shoulder. In an example when the shoulder includes the neck, the shoulder forms a fourth opening between the first opening and the third opening by extending from a first peripheral edge of the first opening. In an example, the third opening may be formed at any location within the shoulder. In an example, the fourth opening may be formed at any location within the shoulder. In an example, the first opening is a passive opening that providesthrough-passage to the product coming via the fourth opening. The neck is a narrower section at the top part of the packaging container that facilitates pouring or dispensing the fillable material. In an example, the neck acts as a constriction while the product filled in the packaging container is squeezed out. The neck extends upwards from a first peripheral edge of the first opening of the sleeve and forms the third opening. In an example, the third opening may act as an active opening for the filling of the product in the packaging container. In an example, the first opening and the fourth opening may be passive openings that provide through-passage to the product to be squeezed out via the third opening. The first peripheral edge may be the outermost boundary or margin of the first opening at the top end of the hollow body. The diameter of the third opening of the neck may be less than a diameter of the first opening at the top end of the hollow body. The top part of the container, i.e. the neck or the shoulder, as the case maybe, provides outside access to the fillable material. The top part of the container may be closed with the first closing means before the filling of the material via the second opening. The closing means may be detachable. The closing means may be a cap, lid, or other types of closures detachably placed on the fourth opening of the neck. Thereby protecting the fillable material from contamination and leakage. In an example, the first closing means may be one of a flip-top cap, plug style, or flat style. Also, the top part may be one of circular, annular, conical, polygon, or pointed at tip, or any other shape.

[0030] Further, the second opening is closeable by the second closing means at the bottom end of the packaging container before the filling process to be done from the top part. For the case when the material gets filled into the packaging container via the bottom part, the second opening is closeable by the second closing means at the bottom end of the packaging container after the filling. The second closing means may be a bottom cap. The bottom end of the packaging container refers to the base or bottom surface of the packaging container. In an example, the secondclosing means may be detachable for enabling refilling of the packaging at the user end.

[0031] The bottom end of the packaging container is crucial for providing stability and ensuring that the fillable material is securely held. In an example, the second opening is fixedly closable by the second closing means at the bottom end of the packaging container. The closing means is a structure which either clamps at or engages with the packaging container for providing an end seal so as to prevent any leakage of the semi-solid media. In an example, the second closing means engages with the bottom end of the packaging container and forms, for example, a snap fit process. A snap fit connection can further be strengthened through a general welding or a molding process or any other process for joining two entities.

[0032] In an example, the second opening is closable by a detachable closing means at the bottom end of the packaging container. The detachable closing means is a structure which either clamps at or engages with the packaging container for providing an end seal so as to prevent any leakage of the semi-solid media and can be detached in case the packaging container is required to be refilled. The detachable closing means ensures that the packaging container can be refilled and can be reused after the refilling. In conventional bottom crimped packaging container, i.e., tubes, any refilling possibility does not exist.

[0033] In another example, the second closing means (i.e., the bottom cap) can have multiple regions with different diameters to facilitate clamping of the bottom end (of the packaging container) at the bottom cap. Accordingly, closure of the bottom end of the packaging container with the bottom cap can be achieved by any other mechanical method, for example, screw thread-based fastening and further strengthening of the formed joint. In an example, the bottom cap can be provided with a circular collar matching a diameter of the bottom end, where the circular collar can bewelded both at an outer and an inner surface of the bottom end of the packaging container. Accordingly, the present subject matter smoothens closure of the bottom end by providing the crimp-less packaging container. This in turn greatly reduces overhead on assembly line for manufacturing due to absence of a separate assembly line for performing the crimping process. The closing means (i.e., bottom cap) has a thickness, for example, can range approximately from 0.1 mm to 4 mm.

[0034] In another example, the bottom end of the packaging container includes a clip like structure at a third peripheral edge of the closing means. The third peripheral edge may be the outermost boundary or margin of the second opening at the bottom end of the hollow body. The clip like structure fits the second closing means at the second opening of the bottom end. The clip-like structure may result in a better fit with the bottom end of the packaging container along with providing a better sealing capability.

[0035] In another example, the second closing means includes a flanged like structure at a third peripheral edge of the closing means. In this arrangement, a portion of laminate is folded inward the third peripheral edge. The folded portion of laminate partially overlaps the flanged edges which abut an inner portion of the hollow body to fixedly seal the second opening of the packaging container. This arrangement may result in a better fit with the bottom end of the packaging container along with providing a better sealing capability.

[0036] In another example, the closing means includes using straight seal or folding the bottom for providing seal integrity. A straight seal is a type of seal used in packaging, particularly in the production of flexible or laminate tubes. It refers to a process of joining the edges of a flat sheet of material to form a cylindrical shape with a straight uniform seam. The edges of the material are aligned in a straight line for consistent joining. Straightseal provides structural integrity and aesthetic quality. Straight seals are preferred for their clean appearance and compatibility with advanced technologies like NEOSeam invisible seams.

[0037] In an example, the present subject matter discloses a thin material configuration of the body by virtue of the tube’s inherent reduced thickness compared to a bottle format, hence the disclosed structure can be referred as a tu-bottle. Thus, relatively less material is used in manufacturing a bottle design inspired packaging container, without any crimps, in comparison to the amount of material used in manufacturing a regular bottle. The material reduction with each such packaging container significantly reduces the total consumption of raw material used in a bulk manufacturing process. This also makes the tu-bottle light-weighted. The tube body (i.e., the hollow body) can be made of laminate or extruded seamless plastic tube or injection molded tube (IML).

[0038] Plastic is predominantly used in manufacturing of packaging containers. The bottle design inspired packaging container, tu-bottle greatly reduces the overall plastic utilization thereby cutting the burden on the manufacturing industry for raw materials. Thereby, greater flexibility is achieved in terms of material usage as well as financial resources with an overall focus on sustainability. For instance, decrease in the use of the plastic positively effects action rate (defined in terms of how quickly a substance (e.g., pollutants) will break down and be eliminated from environment) of the packaging container. Thus, the bottle design inspired packaging containers are more ecofriendly in contrast to the regular bottles.

[0039] It is important to note that the reduction in thickness nowhere affects the stability of the product inside the packaging container because of the type of plastic that is used therein. Moreover, the number of layers can be tailor made to suit the product needs and provides sufficient barrier protection against oxygen.

[0040] The present subject matter is further described with reference to the accompanying figures. Wherever possible, the same reference numerals are used in the figures and the following description to refer to the same or similar parts. It should be noted that the description and figures merely illustrate principles of the present subject matter. It is thus understood that various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.

[0041] FIGS. 1 A-1 B illustrate various views of a packaging container 100 according to an example implementation of the present subject matter. The packaging container 100 hereinafter may be referred to as a crimp-less packaging container. The packaging container 100 hereinafter may be referred to as a recyclable packaging container

[0042] FIG 1 A shows a packaging container 100 with openings through which the desired product may be filled. In an aspect, parts of the packaging container 100 are a tubular hollow body 102 (hereinafter may be interchangeably referred to as hollow body) and a shoulder 104. In an example, the tubular hollow body 102 has an ovality of less than 7%. In an example, the tubular hollow body 102 has an ovality of 5%. The tubular hollow body 102 is formed by a laminate. In an example, the laminate may be made from a blend of high-density polyethylene (HDPE) and mediumdensity polyethylene (MDPE). In an example, the laminate may be made from a blend of high-density polyethylene (HDPE) and low-density polyethylene (LDPE). In an example, the laminate may be made from a blend of high-density polyethylene (HDPE) and linear-low density polyethylene (LLDPE). In an example, the blend has a density in a range of 0.935 g / cc to 0.99 g / cc. In an example, the laminate made from the blend of high-density polyethylene (HDPE) and one of medium-densitypolyethylene (MDPE), low-density polyethylene (LDPE), linear-low density polyethylene (LLDPE), and combinations thereof. In an example, recyclable packaging container (100) is recycled in HDPE bottle grade recycling stream.

[0043] In an example, the tubular hollow body 102 may be formed by folding a laminate into a tube. In an example, the packaging container 100 includes a strip attached at an inner surface of the laminate where two ends of the laminate join to form the tubular hollow body 102. Each of the two ends of the laminate includes a slanted cut so that the strip is attached at the inner surface of the laminate having the slanted cuts to form the tubular hollow body 102. In an example, the strip may be attached to the inner surface of the laminate using a NEOSeam sealing process.

[0044] In an example, the shoulder 104 may include a neck 106. The hollow body 102 of packaging container 100 holds the product to be filled and may be adaptable depending on the design and purpose of the packaging container 100. The hollow body 102 includes a top end 108 and a bottom end 1 10. The top end 108 of the hollow body 102 includes a first opening 112, and the bottom end 110 of the hollow body 102 includes a second opening 114.

[0045] The packaging container 100 may be fillable with a material either via first opening 1 12 at the top end 108 or via second opening 1 14 at the bottom end 1 10, depending on the type of material to be filled in the packaging container 100. In an example, the material to be filled may be a liquid material, a powdered material, and a semi-solid material. For example, the free flowing powdered or liquid material may be filled via the first opening 1 12 at the top end 108 with the bottom end 110 closed and the semi-solid material (e.g., gels, creams, paste, etc.) may be filled via the second opening 1 14 at the bottom end 1 10 with the top end 108 closed.

[0046] Further, the shoulder 104 refers to the part where the hollow body 102 of the packaging container 100 narrows to meet the neck 106. The shoulder 104 fits around the first opening 1 12 of the top end 108 by extending from a first peripheral edge of the first opening 1 12 to form a third opening 1 16 at a centre of the shoulder 104. In an example, the third opening 1 16 may be formed at any location within the shoulder 104. The first peripheral edge may be the outermost boundary or margin of the first opening 1 12 at the top end 108 of the hollow body 102. The shoulder 104 also forms a fourth opening 1 18 between the first opening 1 12 and the third opening 1 16 by extending from a first peripheral edge of the first opening 1 12. In such a case when the neck 106 is present in the shoulder 104, the neck 106 extends upward from a second peripheral edge of the fourth opening 1 18 and forms a third opening 1 16. The second peripheral edge may be the outermost boundary or margin of the fourth opening 1 18 at the shoulder 104 of the packaging container 100. The neck 106 is a narrower section at the top part of the packaging container 100 that facilitates pouring or dispensing the fillable material. The diameter of the third opening 1 16 is less than the diameter of the first opening 1 12 and the fourth opening 118. In an example implementation, the shoulder refers to the part where the hollow body of the packaging container narrows to form the top end, i.e., the top opening. In an example, the top opening is a widened opening to ensure easy filling of the product. In another example implementation, for the packaging container having the neck, the shoulder meets the neck and further the neck forms the top end, i.e., the top opening. The top part of the container, i.e. the neck 106, provides access to the fillable material. The top part of the container 100 may be closed with the detachable closing means. The specific configuration ensures that the packaging container 100 can be filled from the top end, i.e., the first opening based on material specifics. In such a scenario, the conventional filling setups (for Normal Thick Bottles) can be used for the filling without any changes in the filling setup. In another example, this specific configuration ensures that the packaging container100 can be filled from the bottom end, i.e., the second opening based on material specifics. In such a scenario, the conventional filling setups (for squeezable Lami-Tubes) can be used with minor modifications for the filling and therefore similar filling setups used for the filling from the top end can also be used for the filling from the bottom end. The filling of the packaging container from the top end but the stability because of the bottom end is an added advantage. Thus, the same packaging container can be filled from the top via the widened top end and can also be filled from the bottom with merely an additional part implementation, i.e., keeping the bottom end open for the filling and later closing it with the closing part and that too substantially using a common filling setup. The bidirectional filling of the packaging container is advantageous to cater different requirements of different organizations as per the characteristics of the product viz free flowing solid-granules, liquids or less flowing semi-solid having high viscosity.

[0047] Fig. 1 B discloses an example of the packaging container 100 with the bottom end 1 10 which is closed with the first closing means 120 at the top part of the packaging container 100. The first closing means 120 may be detachable. The detachability may be partial or complete. The packaging container 100 resembles that of a bottle. In an example, the bottom end 110 may be a round bottom end.

[0048] The first closing means 120 (hereinafter can be interchangeably referred to as detachable closing means) can be one of a flip-top cap, plug style, or flat style placed on the fourth opening of the neck. Also, the detachable closing means 120 may be one of circular, annular, conical, polygon, or pointed at tip, or any other shape. The detachable closing means 120 closes the top part i.e., neck 106 of the the packaging container 100. Further, below the neck 106, the hollow body 102 of the the packaging container 100 is formed. The hollow body 102 has the top end which includes the shoulder 104 and the bottom end 1 10.

[0049] In an example, the detachable closing means 120 maybe longer or smaller than the usual caps’ size in packaging containers. In another example, detachable closing means 120 may be wider than the usual caps’ size in packaging containers. In another example, shape of the detachable closing means 120 may be one of circular, annular, conical, polygon, or pointed at tip, or any other shape. The detachable closing means 120 may be made of same material as that of the whole packaging container. Alternatively, the detachable closing means 120 may be made of different material with more number of layers than that of the body 102 and the bottom cap 200.

[0050] In an example, the neck 106 may be long, small, flexible, rigid, or corrugated. The neck 106 may be made of same material as that of the whole packaging container. Alternatively, the neck 106 may be made of different material with more number of layers than that of the hollow body 102. For examples a barrier liner (shoulder barrier liner or inner barrier liners can be added to the neck)

[0051] In an example, the detachable closing means 120 may have screws on the inner side and the neck 106 may have corresponding threads on the outer side, which gets meshed with respective screws of the detachable closing means 120. Further, the neck 106 may have a joint at its periphery to attach with the detachable closing means 120 for flip opening of the detachable closing means 120. The detachable closing means 120 may be disposed on the neck 106 in other possible manner.

[0052] In an aspect, the disclosed packaging container 100 can be used for storing a material. In an example, the material can be a liquid material or a powdered material or a semi-solid material. In a particular example, the material can be a cosmetic or a medicinal product or an oralcare product. The packaging container 100 can be manufactured by a films and tubing process, for example, a blown film process. In the blown filmprocess, a resin component is fed into an extruder machine and is further blown as a film by means of a die. The end product is a roll of blown film. Further, the roll of blown film undergoes a lamination process for producing a laminate or a laminate roll, which further gets slit into reels of appropriate sizes suiting to be formed into flexible tube of diameter 13 mm to 60 mm. The slit reels may be then printed with desired information, for example, pictures and composition of the inside product. The laminate is then developed in the form of a tubular shell having a shoulder 104 and sleeve portions. The blown film process enables to have a desired number of layers (multilayer) with required functionalities such as moisture barrier, oxygen barrier, UV-block, etc., while forming the blown films. The lamination of multiple plies (multilayer polymeric films, Al-foil, paper, etc.,) helps in achieving a particular range of thickness for making the different parts of the plastic container 100. Alternatively, the container can be made by extrusion to make seamless plastic tube body or by injection molding the sleeve the shoulder together.

[0053] In an example, the hollow body 102 of the packaging container 100 may be formed by folding a laminate in a tube form with a strip welding the inner surface of the laminate with a slanted cut. Strip welding is a specialized process of welding where a thin metal strip is used as a filler material or as a component of the joint itself. Strip welding is used in packaging, particularly for sealing materials like High Density Polyethylene and Laminates used for sleeve. This involves heating the edges of the plastic strip to fuse them together, creating a strong, and continuous seam.

[0054] The laminate sheet is cut at a slanted angle to allow for a precise overlap or edge alignment. The inner surface of the laminate is prepared for welding and a narrow strip of compatible material is placed along the slanted edge on the inner surface of the laminate. The strip acts as a filler, ensuring a robust seal. Heat and pressure are applied to bond the slanted edge with the strip. The slanted cut allows for smoothertransitions and less visible joints. The slanted edges also distribute stress more evenly, reducing the likelihood of seam failure. The slanted edges work well with multi-layer laminates that require precise alignment and sealing.

[0055] In another aspect, the sleeve may be formed by folding a laminate into a tube. The tube may have a welding strip in the inner surface of the laminate. The laminate may have a slanted ends and have ovality less than 7%.

[0056] Ovality refers to the deviation of a cylindrical or rounded object from a perfect circular shape. In packaging and manufacturing, especially for packaging containers and laminate tubes, ovality is a critical measurement to ensure product quality and functional performance. Ovality affects the aesthetic and functional aspects of packaging. Excessive ovality in laminated tubes may hinder proper sealing, filling, or user experience. Ovality is measured to ensure the seam alignment, seal quality, and fitment of caps or closures.

[0057] The laminate may be made from a blend of High-Density Polyethylene (HDPE), and Medium-Density Polyethylene (MDPE) or Low- Density Polyethylene (LDPE) or Linear Low-Density Polyethylene (LLDPE). The blend may have a density more than 0.941 g / cc more preferably 0.95g / cc. The package with 100% HDPE is prone to Environmental Stress cracking. Hence to overcome and accomplish the making of container, a blend is used without compromising on the strength of the container. The packaging container is recyclable in HDPE bottle grade recycling stream. HDPE bottle grade recycling stream refers to the APR (Association of Plastic Recyclers) critical guidance program for post-consumer high density polyethylene containers to be recycled into bottle grade recycling steam.

[0058] The detachable closing means 120 disposed at the top end 108 closes the top end 108 while leaving the bottom end 1 10 open for fillingwith a desired level of a product (for example, a liquid material or a powdered material or a semi-solid material, particularly, for example, the material can be a cosmetic or a medicinal product). Such a packaging container 100 can then be shared with product manufacturing companies selling consumer packaged goods (CPG). The filling of the product and closure of the packaging container 100 can be done at filling and assembly line of manufacturing companies selling the CPG. After filling the bottom portion is sealed by a closing means.

[0059] Fig. 2A of the packaging container 100 depicts a second closing means at the bottom end of the packaging container. In an example, the second closing means is a fixed closing means. In an example, the second closing means is a detachable closing means.

[0060] The second opening 114 is closeable by the second closing means at the bottom end 110 of the packaging container 100 when the material gets filled into the packaging container 100. The second closing means may be a bottom cap 200. The bottom end 1 10 of the packaging container 100 refers to the base or bottom surface of the packaging container 100. The bottom cap 200 is in alignment with the bottom end 1 10 of the packaging container 100. The bottom cap 200 when placed against the bottom end 1 10 of the packaging container 100 forms a closure as described above. The closing means is a structure which either clamps at or engages with the packaging container 100 for providing an end seal so as to prevent any leakage of the semi-solid media. In an example, the closing means engages with the bottom end 110 of the packaging container 100 and forms, for example, a snap fit process. A snap fit connection can further be strengthened through a general welding or a molding process or any other process for joining two entities. In this example, the packaging container 100 can be filled from the top end after closing the bottom end but before putting on the top cap.

[0061] In an example, the second opening 1 14 may be fixedly closable by the second closing means after the filling via the second opening.

[0062] In an example, the second opening 1 14 may be fixedly closable by the second closing means before the filling via the first opening;.

[0063] In an example, the second opening 1 14 may be detachably closable by the second closing means , when the packaging container 100 is to be used for re-filling of the material via the second opening

[0064] In an example, the second opening 1 14 may be detachably closable by the second closing means, when the packaging container 100 is to be filled via the first opening but to be used for re-filling of the material via the second opening.

[0065] In an example, the second closing means disposed at the bottom end 110 comprises a laminate or a moulded part. The laminate may be made from multi-layer materials that match the container’s structure. The moulded part may be an injection moulded plastic designed to fit securely. The laminate or the moulded part is welded to the bottom end of the packaging container. The packaging container 100 is aligned with the bottom end to ensure precise placement. The welded seam allows ensures a strong and leak-proof bond. The welded bottom provides structural stability to the packaging container 100.

[0066] In an example, the second closing means disposed at the bottom end 1 10 closes the bottom end 110 while leaving the top end 108 open for filling with a desired level of a product (for example, a liquid material or a powdered material or a semi-solid material, particularly, for example, the material can be a cosmetic or a medicinal product). Such a packaging container 100 can then be shared with product manufacturing companies selling consumer packaged goods (CPG). The filling of the product andclosure of the packaging container 100 can be done at filling and assembly line of manufacturing companies selling the CPG. After filling the top portion is sealed by a detachable closing means 120 disposed at the top end of the packaging container 100.

[0067] Thus, the packaging container 100 may be fillable with a material either via first opening 112 at the top end 108 or via second opening 1 14 at the bottom end 1 10, depending on the type of material to be filled in the packaging container 100. The material to be filled may be a liquid material, a powdered material, and a semi-solid material. For example, the powdered material may be filled via the first opening 1 12 at the top end 108 with the bottom end 1 10 closed and the semi-solid material (e.g., gels, creams, paste, etc.) may be filled via the second opening 1 14 at the bottom end 1 10 with the top end 108 closed.

[0068] Fig. 2B of the packaging container 100 depicts that even if the packaging container 100 is inverted, alignment of the second closing means i.e., the bottom cap 200 with respect to the packaging container 100 remains the same.

[0069] FIG. 2C illustrates a sectional view of the packaging container 100 which shows a design of the bottom cap 200. The bottom cap 200 is open concave surface as shown in Fig. 2C and a closed surface as shown in Fig. 2C. The closed surface includes a plate with a circular joint 202 around edges and a protruding flat part 204 in the middle which is less in diameter than the entire plate. A suitable shape of the plate can be chosen for resulting in a better fit with the bottom end 110 of the packaging container 100.

[0070] In an example, the bottom cap 200 can be inward fitting into the packaging container 100. In another example, the bottom cap 200 can be a U-shaped enclosure. In a further example, the bottom cap 200 can beone of circular, annular, polygon, or any other shape which can snap fit at the bottom end 1 10 of the packaging container 100.

[0071] In an example, the bottom cap 200 may be made of more number of layers than that of the body 102 or other parts of the packaging container 100 for providing mechanical integrity to the whole packaging container 100 and support weight of the inside product. However, the barrier properties of the bottom cap 200 will be the same as that of the body 102 of the packaging container 100.

[0072] In an instance of filling the packaging container 100, a product can be filled either from the open top end 108 or from the open bottom end 1 10. After filling a desired amount of the product, either the detachable closing means 120 at the top part i.e., neck 106 or the fixed closing means i.e., bottom cap 200 at the bottom end 110 can be used for closure in a suitable manner.

[0073] Different materials can be used for manufacturing the crimpless container 100, for example, metals such as aluminum, plastics such as Polyethylene (PE), Polypropylene (PP), Polyethylene Terephthalate (PET), Ethylene Vinyl Alcohol (EVOH), Polyvinyl alcohol (PVOH), Paper, Metallized polymeric Laminates, High Density Polyethylene (HDPE) (100% or <100%) Ethylene Vinyl Alcohol (EVOH) (<5%) and combinations thereof.

[0074] EVOH (<5%) is used for recyclability in code 2 HDPE bottle grade recycling stream as per APR critical guidance program. Code 2 HDPE bottle grade recycling Stream refers to a recyclable material that is primarily used for HDPE which is identified by the resin identification code 2. HDPE is one of the most commonly recycled plastics and is used in a wide range of consumer goods packaging. Code 2 is the recycling symbol assigned to HDPE, which is one of the ways to upcycle the recycled plastics

[0075] FIG. 3A illustrates a sectional view of the bottom end 1 10 of the packaging container 100, according to another example implementation of the present subject matter. The bottom end 1 10 of the packaging container 100 includes an end cap 300 being used as the second closing means. The end cap 300 may include a clip-like structure 302 at peripheral edge of the closing means i.e., end cap 300. The clip-like structure 302 may result in a better fit with the bottom end 1 10 (now shown in FIG. 3) of the packaging container 100 (not shown in FIG. 3A) along with providing a better sealing capability. Figure 3B illustrates a sectional view of the bottom end 1 10 of the packaging container 100 when the clip-like structure 302 is inserted to abut an inner portion of the hollow body 102 to fixedly seal the second opening 1 14 of the packaging container 100. Figure 3C illustrates a sectional view of the bottom end 110 of the packaging container 100 when the clip-like structure 302 is inserted to abut an inner portion and an outer portion of the hollow body 102 to fixedly seal the second opening 114 of the packaging container 100.

[0076] Fig. 4A of the packaging container 100 depicts the second closing means disposed at the bottom end 110 of the packaging container 100. The bottom end of the packaging container 100 includes a flanged like structure 402 at a third peripheral edge of the closing means. In this arrangement, a portion of laminate is folded inward the third peripheral edge. The folded portion of laminate partially overlaps the flanged edges 402 to abut an inner portion of the hollow body 102 to fixedly seal the second opening 114 of the packaging container 100. The flanged structure typically involves flanges that fold over to create a secure fit against the inner surface of the hollow body 102. Foldable arrangement provides an efficient and versatile solution for many packaging needs, balancing convenience, cost, and security.

[0077] Fig. 4B illustrates the views of the second closing means 400. The second closing means includes a flanged structure 402. Fig (a) depictsthe perspective view of the bottom closure i.e., a flange. The flange 402 moved inside the hollow body 102. Fig (b) depicts the cross-sectional view of the flange. Fig (c) depicts the sectional view of the flange.

[0078] Fig. 4C illustrates the breakout section view of the packaging container 100 depictingthe arrangement of the bottom closure i.e., a flange. The flange 402 moved inside the hollow body 102. In the breakout section view, it is depicted as the end closure being inside the hollow body 102 and a portion of laminate is folded inward to partially overlap the flange edges which abut an inner portion of the hollow body. Foldable arrangement provide an efficient and versatile solution for many packaging needs, balancing convenience, cost, and security.

[0079] Fig. 4D illustrates the section perspective view of the packaging container 100 to depict the arrangement of the bottom closure i.e., a flange. In the section perspective view, it appears that a portion of laminate is folded inward to partially overlap the flange edges which abut an inner portion of the hollow body. This arrangement fixedly seals the second opening 114 of the packaging container 100. The flanged structure 404 typically involves flanges that fold over to create a secure fit against the outer surface of the hollow body 102. Foldable flanged structures provide an efficient and versatile solution for many packaging needs, balancing convenience, cost, and security.

[0080] Fig. 4E illustrates a sectional view of the packaging container 100 depicting the arrangement of the bottom closure i.e., a flange. In the sectional view, it appears that a portion of laminate is folded inward to partially overlap the flange edges which abut an inner portion of the hollow body. This arrangement fixedly seals the second opening 1 14 of the packaging container 100.

[0081] FIG. 4F illustrates a sectional view of the bottom end 1 10 of the packaging container 100, according to another example implementationof the present subject matter. The bottom end 1 10 of the packaging container 100 includes an end cap. The end cap may include a flange-like structure 402 at peripheral edge of the closing means. The flange-like structure 402 may result in a better fit with the bottom end 1 10 (now shown in FIG. 4G) of the packaging container 100) along with providing a better sealing capability.

[0082] Figure 4G illustrates a sectional view of the bottom end 110 of the packaging container 100 when the flange-like structure 402 is partially overlapped by a portion of the laminate to abut an inner portion of the hollow body 102 to fixedly seal the second opening 1 14 of the packaging container 100. Foldable flanged structures provide an efficient and versatile solution for many packaging needs, balancing convenience, cost, and security.

[0083] Fig. 5 of the packaging container 100 depicts fixed closing means disposed at the bottom end 1 10 of the packaging container 100. The bottom end 1 10 is fixedly closed by a circular collar 502 matching a diameter of the bottom end 1 10, where the circular collar 502 can be welded both at an outer and an inner surface of the bottom end 110 of the packaging container 100. Accordingly, the present subject matter smoothens closure of the bottom end 110 by providing the crimp-less packaging container 100. This in turn greatly reduces overhead on assembly line for manufacturing due to absence of a separate assembly line for performing the crimping process. The closing means (i.e., bottom cap) has a thickness, for example, can range approximately from 0.1 mm to 4 mm.

[0084] In an example, the second opening is closable by a detachable closing means (not shown) at the bottom end of the packaging container. The detachable closing means is a structure which either clamps at or engages with the packaging container for providing an end seal so as to prevent any leakage of the semi-solid media and can be detached in case the packaging container is required to be refilled. The detachable closingmeans ensures that the packaging container can be refilled and can be reused after the refilling. In conventional bottom crimped packaging container, i.e., tubes, any refilling possibility does not exist.

[0085] In an example, the packaging container 100 includes a hollow body 102 having a top end 108 and a bottom end. The hollow body 102 comprises a first opening 112 at the top end 108 and a second opening 114 at the bottom end 1 10. The hollow body 102 is fillable with a material via one of the first opening 112 and the second opening 1 14. The packaging container 100 includes a shoulder 104 extending from a first peripheral edge of the first opening 112 to form a third opening 1 16 at a centre of the shoulder 104 and a neck 106 extending upwards from a second peripheral edge of the third opening 116 to form a fourth opening 1 18. The fourth opening 1 18 has a diameter less than a diameter of the first opening 112 and a diameter of the third opening 1 16. Further, the packaging container 100 includes a detachable closing means 120 to close the fourth opening 1 18 and a closing means 200, 300, 400 to close the second opening 1 14 after the filling. In an example, the closing means 200, 300, 400 is to fixedly to close the second opening 1 14 after the filling. In an example, the closing means 200, 300, 400 is to detachably close the second opening 114.

[0086] In an example, the second opening 1 14 is fixedly closable by the fixed closing means 200, 300, 400 at the bottom end 1 10 of the packaging container 100.

[0087] In an example, the closing means is to engage with the bottom end 1 10 of the packaging container 100 by forming a snug -fit connection.

[0088] In an example, the bottom end 110 of the packaging container 100 comprises a clip like structure 302 at a third peripheral edge of the fixed closing means 300. The clip like structure 302 is to fit the closing means at the second opening 1 14 of the bottom end 110.

[0089] In an example, the fixed closing means 400 comprises a flanged structure 402 at a third peripheral edge of the closing means. In this arrangement, a portion of laminate is folded inward the third peripheral; edge. The folded portion of laminate partially overlaps the flanged edges to abut an inner portion of the hollow body 102 to fixedly seal the closing means 400 at the second opening 1 14 of the packaging container 100.

[0090] In an example, the fixed closing means 200, 300, 400 has a thickness in a range from 0.1 mm to 4mm.

[0091] In an example, the material is one of a liquid material, a powdered material, and a semi-solid material.

[0092] In an example, the hollow body 102 is made one of a laminate, an extruded seamless plastic tube, and an injection molded tube.

[0093] In an example, the hollow body 102 is made of a printable and flexible laminate. The printable laminate ensures that the packaging container 100 does not require any other printed material or sheet being pasted in it for branding purposes, etc.

[0094] In an example, the packaging container 100 is made of one or more of a material selected from a group consisting of Polyethylene (PE), Polypropylene (PP), Polyethylene Terephthalate (PET), Ethylene Vinyl Alcohol (EVOH), Polyvinyl alcohol (PVOH), Paper, Metallized polymeric Laminates, and combinations thereof.

[0095] Figure 6 illustrates a flow diagram of a method for manufacturing the packaging container 100 by a laminated tube making process, hereinafter referred to as process, according to an example implementation of the present subject matter.

[0096] At block 602, the process starts with the blown film process. The laminated tube is made by first making a film. In the blown film process,a resin component which is usually in the form of pellets is fed into an extruder through a hopper for melting and mixing. The melted resin is blown as a bubble film by means of an annular die. The final product is a roll of blown film.

[0097] Further, at block 604, the blown films may undergo a lamination process (optionally along with other webs of paper or foil) for producing a laminate having required properties and thickness.. Laminate incorporating various necessary functional layers and is produced by bonding different materials together.

[0098] Further, at block 606, the lamination process is followed by slitting. Slitting is a process used to cut large rolls of materials such as laminates into narrower rolls. In this process, materials need to be converted from large wide rolls into smaller sizes for packaging, manufacturing or distribution. Slitting converts the laminates into reels.

[0099] At block 608, once the laminated material is created and cut to the required width and length for the specific tube size, the outer most layer is printed with the product design, branding, and other necessary information. In an example, the flat laminate may be printed / decorated (2- dimensional printing) with desired text and images. The flat laminate printing provides versatility in terms of surface aesthetic and also printing technologies

[0100] At block 610, after printing the laminated material is shaped into cylindrical form to create the tube body. The decorated laminate is then developed in the form of a tubular shell having a shoulder and sleeve portions through a tube making process. The reels are then made into flexible tubes by seaming the sides, followed by molding or welding the shoulder onto the sleeve end. Seaming is a process where the edges of the cut laminate are sealed together, typically, by heat sealing, to form a continuous tube structure.

[0101] At block 612, the next step is attaching the tube’s shoulder and neck. This is done by injection or compression moulding or welding the shoulder onto the sleeve end. The shoulder may be injection moulded or welded directly onto one end of the tube body. This forms a strong bond between the shoulder and the laminate body.

[0102] At block 614, after the shoulder is attached to the laminate body, the CAP is screwed or snapped onto the neck of the tube. The shoulder may be closed by appropriate CAP.

[0103] Figure 7 illustrates a flow diagram of a method for manufacturing the packaging container 100 by a seamless tube making process, according to an example implementation of the present subject matter. The making of flexible tube may be done by direction extrusion followed by molding I welding the shoulder, and fitting it with appropriate CAP.

[0104] At block 702, the process of making flexible tube starts with direct extrusion of tube. Tube extrusion process includes various steps such as raw material feeding, melting the material, extrusion through a die, cooling, sizing and calibration, pulling, cutting, and quality control and inspection.

[0105] The process starts with a raw material (i.e., plastic resin) in pellet form, such as Polyethylene (PE), Polypropylene (PP), Polyethylene Terephthalate (PET), Ethylene Vinyl Alcohol (EVOH), Polyvinyl alcohol (PVOH), Paper, Metallized polymeric Laminates, and combinations thereof. The pellets are fed into a hopper, which directs them into the extruder.

[0106] Further, inside the extruder, the plastic pellets are heated and melted and form a molten mass. Further, the molten plastic is forced through a tube-shaped die. The die is a specially designed metal mold that formsthe plastic into a continuous hollow tube shape. The diameter and wall thickness of the tube are determined by the shape and size of the die.

[0107] After the molten tube exits the die, it is immediately cooled to solidify the material and maintain its shape. The cooling process helps the tube retain its dimensional accuracy and ensures that it is strong and durable.

[0108] As the tube cools, it passes through a sizing or calibration unit, which ensures that the tube maintains the correct diameter and wall thickness. The tube is pulled through a vacuum or pressure system to precisely control its dimensions.

[0109] Once the tube has been extruded and cooled, it is cut to the desired length. After cutting, the tube undergoes quality control checks to ensure the dimensions, wall thickness, and surface finish meet the required specifications.

[0110] At block 704, the next step is attaching the tube’s shoulder and neck. This is done by injection or compression moulding or welding the shoulder onto the sleeve end. The shoulder may be injection moulded or welded directly onto one end of the tube body.

[0111] At block 706, after the shoulder is attached to the laminate body, the CAP is screwed or snapped onto the neck of the tube. The shoulder may be closed by appropriate cap.

[0112] Figure 8 illustrates a flow diagram of a method for manufacturing the packaging container 100 by an injection molded tube making process, according to an example implementation of the present subject matter. The tube with shoulder may also be directly injection molded optionally over a label, followed by adding a CAP.

[0113] At block 802, the process of making flexible tube starts with injection molding of tube. Injection molding process includes various steps such as material preparation, melting and plasticizing, injection into the mold, cooling and solidification, and ejection of the tube.

[0114] The process starts with plastic pellets such as Polyethylene (PE), Polypropylene (PP), Polyethylene Terephthalate (PET), Ethylene Vinyl Alcohol (EVOH), Polyvinyl alcohol (PVOH), Paper, Metallized polymeric Laminates, and combinations thereof. The pellets are fed into the hopper of the injection molding machine

[0115] The plastic pellets are fed into the heated barrel of the injection molding machine, where they are melted and turned into a molten state. Further, molten plastic is injected into the mold cavity under high pressure. The mold cavity is shaped like the tube to be formed. Once the mold is filled with molten plastic, the material is allowed to cool and solidify while inside the mold. After the plastic has cooled and solidified, the mold opens, and the newly formed tube is ejected from the mold cavity. The entire tube body is formed along with the shoulder and neck, which form the top part of the tube While the bottom part remains open

[0116] The product obtained by the aforementioned processes are the tube with a bottom opening. The bottom closure is made as a separate component. The bottom closure can be made by injection molded, thermoforming the sleeve laminate into appropriate shape so as to fit into the tube’s bottom opening and can be attached to the tube end either by snap-fitting and / or welding. The timing of attachment of bottom closure can be done based on the product flow nature. For High flow materials, it can be pre-attached before filling and the filling can be done from the top end through wide mouthed shoulder. For medium and low flow materials, the top end is closed and the product is filled from the bottom and the bottom closure is then fitted / attached to the end of the tube through snap-fittingand / or welding. The injection molded bottom closure can be fitted detachably to the tube either through the molded-in screw threads in the sleeve or just snap-fitted. The bottom closure can also be permanently welded / joined to the tube bottom by proper thermal, ultra-sonic welding.

[0117] Although implementations for design and manufacturing of crimp-less packaging containers have been described in a language specific to structural features and / or steps, it is to be understood that the invention is not necessarily limited to the specific features or steps described. Rather, the specific features and steps are disclosed as exemplary implementation for crimp-less packaging containers.

Claims

I claim:1 . A recyclable packaging container (100) comprising: a tubular hollow body (102) having: a top end (108); a bottom end (1 10); a first opening (1 12) at the top end (108); a second opening (114) at the bottom end (1 10); and an ovality of less than 7%, wherein the tubular hollow body (102) is formed by a laminate made from a blend of high-density polyethylene (HDPE) and one of medium-density polyethylene (MDPE), low-density polyethylene (LDPE), linear-low density polyethylene (LLDPE), and combinations thereof; wherein the tubular hollow body (102) is fillable with a material via one of the first opening (1 12) and the second opening (114); a shoulder (104) extending upward from a first peripheral edge of the first opening (1 12) to form a third opening (116) smaller than the first opening (112); a first closing means (120) to close the third opening (1 16); and a second closing means (200, 300, 400) to close the second opening (1 14) and to provide standing support to the recyclable packaging container (100).

2. The recyclable packaging container (100) as claimed in claim 1 , wherein the recyclable packaging container (100) comprises a strip attached at an inner surface of the laminate where two ends of the laminate join to form the tubular hollow body (102), wherein each of the two ends of the laminate join comprises a slanted cut so that the strip is attached at the inner surface of the laminate having the slanted cuts to form the tubular hollow body (102).

3. The recyclable packaging container (100) as claimed in claim 1 , wherein the tubular hollow body (102) is formed by folding the laminate into a tube.

4. The recyclable packaging container (100) as claimed in claim 1 , wherein the recyclable packaging container (100) is recycled in HDPE bottle grade recycling stream.

5. The recyclable packaging container (100) as claimed in claim 1 , wherein the blend has a density in a range of 0.935 g / cc to 0.99 g / cc.

6. The recyclable packaging container (100) as claimed in claim 1 , wherein the second opening (114) is one of: fixedly closable by the second closing means (200, 300, 400) after the filling via the second opening; fixedly closable by the second closing means (200, 300, 400) before the filling via the first opening; detachably closable by the second closing means (200, 300, 400), when the packaging container (100) is to be used for re-filling of the material via the second opening; and detachably closable by the second closing means (200, 300, 400), when the packaging container (100) is to be filled via the first opening but to be used for re-filling of the material via the second opening.

7. The recyclable packaging container (100) as claimed in claim 1 , wherein the second closing means is to engage with the bottom end (1 10) of the packaging container (100) by forming a snug-fit connection.

8. The recyclable packaging container (100) as claimed in claim 1 , wherein the bottom end (1 10) of the packaging container (100) comprises a clip like structure (302) at a third peripheral edge of the second closing means (300), wherein the clip like structure (302) is to fit the second closing means at the second opening (1 14) of the bottom end (1 10).

9. The recyclable packaging container (100) as claimed in claim 1 , wherein the second closing means (400) comprises a flanged structure (402) at a third peripheral edge of the second closing means, wherein the flangedstructure (402) is foldable to abut an inner portion of the tubular hollow body (102) to fixedly seal the second closing means (400) at the second opening (1 14) of the packaging container (100).

10. The recyclable packaging container (100) as claimed in claim 1 , wherein the second closing means (200, 300, 400) has a surface thickness in a range from 0.1 mm to 4mm.1 1 . The recyclable packaging container (100) as claimed in claim 1 , wherein the tubular hollow body (102) is made of a printable and flexible laminate.

12. A method for manufacturing the recyclable packaging container (100) as claimed in one of claims 1 to 10.

Citation Information

Patent Citations

  • Tube head arrangement, tube, method for producing a tube head arrangement and method for producing a tube

    EP1698561A1

  • Injection molded tube

    EP2569224B1

  • Cellulose-based tube head, tube and manufacturing method

    US20230331441A1