jar

Abstract

A jar (15) is provided and comprises two or more components (20, 25) which are formed separately and assembled together. Each of the components is formed from PET and each of the components has a maximum wall thickness of less than 5mm.

Description

[0001] The present invention relates to a jar.

[0002] Packaging containers are known from US 2008 / 023491 A1 and JP 5 827174 B2.

[0003] A jar can be described as a wide-mouthed cylindrical container often made of glass or pottery and typically having a lid.

[0004] In the personal care market it is well known to use glass jars (e.g. for cosmetics such as creams and ointments). Such jars are perceived as having a premium feel.

[0005] The present invention seeks to provide improvements in or relating to jars.

[0006] The present invention provides a jar comprising an external body jar and an internal body jar which are formed separately and assembled together and together provide an increased thickness sidewall, each of the body jars is formed from PET and each of the body jars has a maximum wall thickness of less than 5mm, wherein the jar further comprises an inner cup which is removable and which is formed from polypropylene.

[0007] Embodiments of the present invention may relate generally to the field of personal care. This market is, for example, looking for a recyclable, refillable and reusable jar, integrating less plastic, circular economy and CO 2 reduction.

[0008] Some products formed in accordance with present invention will be compatible with circular economy and will be 100% recyclable taking advantage of the PET stream ready.

[0009] The two components have less than 5 mm of thickness to avoid the crystallization in order to get maximum transparency.

[0010] In some embodiments there may be optimization of wall thickness to avoid crystallization.

[0011] To answer sustainability trends in the personal care market, the present invention provides a jar formed in PET which is completely recyclable and yet maintains a premium appearance and / or feel.

[0012] Polyethylene terephthalate (PET or PETE) is a thermoplastic polymer which belongs to the polyester family of polymers. It can be fully recycled, in which case it becomes recycled polyethylene terephthalate (rPET).

[0013] PET in its natural state is a colourless, semi-crystalline resin. Clear products can be produced by rapidly cooling molten polymer below its glass transition temperature to form an amorphous, uncrystallised solid.

[0014] The jar may be refillable and reusable.

[0015] The internal body jar may include a neck portion which may, for example, include a screw thread formation, snap bead or the like for receiving a lid or cap.

[0016] In some embodiments the components are welded together, for example ultrasonically welded together.

[0017] The assembly of the components may be by ultrasonic welding machine, which may be installed in line with the component formation (e.g. injection) in a continuous process to optimize the manufacturing efficiency.

[0018] In some embodiments the components are formed by injection moulding.

[0019] In some embodiments the idea may be to inject on the same mould the two different parts in PET.

[0020] Some embodiments provide or relate to a jar comprising two parts injected in PET and welded by ultrasonic.

[0021] The jar further comprises an inner cup. For example, additionally a refill inner cup will be able in PP to re-use the jar.

[0022] The inner cup is formed from polypropylene.

[0023] The jar may further comprise a lid, cap, top or the like. For example the jar may be combinable with current caps.

[0024] The jar may, for example, be formed as a cosmetics container.

[0025] Each of the components may be clear, substantially uncrystallised PET.

[0026] The present invention also provides a jar as described herein and being filled with product.

[0027] The present invention also provides a jar as described herein and being filled with a cosmetic.

[0028] Jars may, for example, be provided in different sizes / capacities, such as 50ml or 15ml.

[0029] External body jar: e.g. 38gr in PET for 50ml; e.g. 16gr in PET for 15ml.

[0030] Internal and neck jar: e.g. 36gr in PET for 50ml; e.g. 16gr in PET for 15ml.

[0031] Cup: PP.

[0032] The PET may be rPET.

[0033] Each of the components has a maximum wall thickness of less than 5mm. Once assembled together the two components effectively become one, with a cumulative wall thickness providing a premium appearance and feel. This could in some ways be described or thought of as a duo jar.

[0034] Different aspects and embodiments of the invention may be used separately or together.

[0035] Further particular and preferred aspects of the present invention are set out in the accompanying independent and dependent claims. Features of the dependent claims may be combined with the features of the independent claims as appropriate, and in combination other than those explicitly set out in the claims.

[0036] The present invention will now be more particularly described, by way of example, with reference to the accompanying drawings.

[0037] The example embodiments are described in sufficient detail to enable those of ordinary skill in the art to embody and implement the systems and processes herein described. It is important to understand that embodiments can be provided in many alternative forms and should not be construed as limited to the examples set forth herein.

[0038] Accordingly, while embodiments can be modified in various ways and take on various alternative forms, specific embodiments thereof are shown in the drawings and described in detail below as examples. There is no intent to limit to the particular forms disclosed. On the contrary, all modifications, equivalents, and alternatives falling within the scope of the appended claims should be included. Elements of the example embodiments are consistently denoted by the same reference numerals throughout the drawings and detailed description where appropriate.

[0039] Unless otherwise defined, all terms (including technical and scientific terms) used herein are to be interpreted as is customary in the art. It will be further understood that terms in common usage should also be interpreted as is customary in the relevant art and not in an idealised or overly formal sense unless expressly so defined herein.

[0040] In the following description, all orientational terms, such as upper, lower, radially and axially, are used in relation to the drawings and should not be interpreted as limiting on the invention.

[0041] Figure 1 shows a cosmetics container generally indicated 10.

[0042] The container 10 comprises a jar 15 and a lid 20. The jar 15 is shown with the lid removed in Figure 2.

[0043] Figure 3 shows two components of the jar: an external body jar 20 and an internal body jar 25. The internal body jar 25 includes a neck ring 30 and a finish 35 which includes an external screw thread 40.

[0044] Figure 4 shows a removable, refillable, reusable inner cup 45.

[0045] Two jar components formed from PET is a new packaging concept fulfilling sustainability and circular economy requirements.

[0046] This embodiment of the present invention is based on a principle of optimisation of wall thickness to avoid crystallization. The inner jar and the outer jar together provide a thick sidewall and a premium appearance results. In addition this creates a sustainable advantage: the combination of PET material with a refillable inner cup in PP gives a complete solution to the make the packaging sustainable.

[0047] Figures 5A to 5C show plan, underplan and sectional views of an external jar body component 120.

[0048] The external component 120 comprises a sidewall 121 and a dished base 122. The sidewall extends axially beyond the periphery of the base to provide an annular foot 123. At the end of the sidewall opposite the foot an annular ledge 124 is formed.

[0049] Figures 6A to 6C show plan, sectional, and magnified sectional views of an internal jar body component 125.

[0050] The internal component 125 is generally cup-shaped and comprises a sidewall 126 and a floor 127. Towards a free end of the sidewall an annular neck ring 130 is provided.

[0051] Beyond the neck ring a neck finish 135 extends.

[0052] Figure 6C shows the neck finish in more detail. The exterior of the finish is provided with an external screw thread formation 140 (single- or multi-start). The rim of the finish is formed with a retention bead 142.

[0053] Figures 7A to 7F show side, top perspective, bottom perspective, underplan, sectional and magnified sectional views of an inner cup 145.

[0054] The cup 145 comprises a sidewall 146 and a bottom wall 147.

[0055] As shown best on Figure 7F, the rim of the sidewall is generally L-shape in section. A first leg 148 extends radially outwards and a second leg 149 which depends from the first leg. The interior face of the leg 149 is provided with an annular bead 150.

[0056] Figures 8A to 8F illustrate assembly of the internal and external jar body components 125, 120.

[0057] The internal component 125 nests in the external component 120. The floor 127 sits above the base 122 (see Figures 8C and 8E). The internal component neck ring 130 seats on the external component ledge 124.

[0058] In this embodiment the two parts 120, 125 are injected in PET and welded together by ultrasonic between the ring 130 and the ledge 124 (see Figure 8D). In some respects the two parts then effectively become one cumulative part.

[0059] The cup (not shown) can be introduced to the assembled parts 120, 125. The sidewall rim of the cup fits onto the internal component neck finish. The annular bead 150 of the cup clips / snaps over the retention bead 142 of the internal jar part. In this embodiment this releasably secures the cup into the jar.

[0060] Although illustrative embodiments of the invention have been disclosed in detail herein, with reference to the accompanying drawings, it is understood that the invention is not limited to the precise embodiments shown and that various changes and modifications can be effected therein by one skilled in the art without departing from the scope of the invention as defined by the appended claims.

Claims

1. A jar (15) comprising an external body jar (20) and an internal body jar (25) which are formed separately and assembled together and together provide an increased thickness sidewall, each of the body jars (20, 25) is formed from PET and each of the body jars (20, 25) has a maximum wall thickness of less than 5mm, wherein the jar (15) further comprises an inner cup (45) which is removable and which is formed from polypropylene.

2. A jar as claimed in claim I , in which the internal body jar (25) includes a neck finish (35).

3. A jar as claimed in claim I or claim 2, in which the external body jar (20) and the internal body jar (25) are welded together.

4. A jar as claimed in any preceding claim, in which the external body jar (20) and the internal body jar (25) are ultrasonically welded together.

5. A jar as claimed in any preceding claim, in which the external body jar (20) and the internal body jar (25) are formed by injection moulding.

6. A jar (15) as claimed in any preceding claim and further comprising a lid (20).

7. A jar (15) as claimed in any preceding claim and being formed as a cosmetics container.

8. A (15) jar as claimed in any preceding claim, in which the external body jar (20) and the internal body jar (25) are clear, substantially uncrystallised PET.

9. A jar (15) as claimed in any preceding claim and being filled with product.

10. A jar (15) as claimed in any preceding claim and being filled with a cosmetic.

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