Wax container, manufacturing method

Abstract

The invention relates to a wax container (1) including a receptacle (2) and a cover, the receptacle (2) including an accommodating space for receiving a product to be preserved and a closing space (2, 3) capable of cooperating with the closing cover, the closing space (2, 3) including a circular edge (7, 8) including an external thread (4) made of wax, the cover including a circular edge including an internal wax thread, the edge of the cover having a larger diameter than the edge (7, 8) of the closing space of the receptacle (2).

Description

[0001] WAX CONTAINER, MANUFACTURING PROCESS

[0002] Scope of the invention

[0003] The field of the invention relates to wax containers. More specifically, the field relates to wax containers intended to receive and preserve a cosmetic product, such as a cream.

[0004] State of the art

[0005] There are containers available for storing cosmetic products. However, these are generally made of plastic. These containers are not recyclable and do not allow for proper end-of-life management.

[0006] Beeswax has a variety of uses and possesses particularly interesting preservative properties, notably for preserving honey. Furthermore, beeswax is easily recyclable. However, it remains that the wax can be worked, for example, by melting it and shaping it into a particular form as it cools.

[0007] One problem is that wax deforms when it cools and generally shrinks after it hardens. Therefore, it is difficult to make containers from wax.

[0008] Furthermore, wax is not used to preserve cosmetic products such as creams, precisely because there is a prejudice against using this type of packaging whose airtightness does not seem to be easily guaranteed.

[0009] Summary of the invention

[0010] According to a first aspect, the invention relates to a wax container comprising a receptacle and a lid, said receptacle having a holding space for a product to be preserved and a closing space adapted to cooperate with said closing lid, the closing space having a circular edge having an external wax thread, the lid having a circular edge having an internal wax thread, said edge of the lid having a diameter larger than the edge of the closing space of the receptacle. According to one embodiment, the wax container comprises a holding space with a larger internal diameter than the diameter of the internal circular edge of the receptacle.

[0011] According to one embodiment, the wax container comprises a minimum thickness of 5mm.

[0012] According to one embodiment, the wax container includes a wax operculum for closing the closing space.

[0013] According to one embodiment, the wax container is intended to receive a cosmetic product.

[0014] According to one embodiment, the wax container includes a wick intended to be lit after use of the cosmetic product, said wick being partially integrated into the wax either in the lid or in the bottom of the receptacle.

[0015] According to another aspect, the invention relates to a method for manufacturing a wax piece defining a container intended to receive a product to be preserved, said method comprising the following steps:

[0016] ■ Securing an inner silicone mold with an injector so as to make a hot wax introduction channel of the injector cooperate with a passage channel formed in the inner silicone mold so as to pass the hot wax along the surface of the silicone mold;

[0017] ■ Introduction of the injection insert, secured to the silicone mold, within an internal space of a formwork forming an external mold to define the external surface of a part to be molded,

[0018] ■ Joining the insert forming the inner mold, the injector and the formwork forming the outer mold so as to define an inner volume defining the volume of the part to be formed;

[0019] ■ Injection of a volume of wax into the injection channel until the hot molten wax fills the free space of the outer mold;

[0020] ■ Cooling of the wax within the mold;

[0021] ■ Demolding and extraction of the injection insert and removal of the silicone mold. According to one embodiment, the joining of the inner silicone mold with the injector includes the positioning of a channel of the insert opposite a channel of the injector.

[0022] According to one embodiment, the joining of the inner silicone mold with the injector includes their joining with a lid of the formwork so that the arrangement of the insert and the injector within said formwork allows the formwork to be closed with the lid so as to form a space to receive the hot wax.

[0023] According to one embodiment, the injection of the volume of wax is carried out via a channel formed in the flange 54 and extending into the injection channel of the injector and opening into the channel of the insert which itself opens into the space receiving the volume of wax included between the insert and the casing.

[0024] According to one embodiment, the cooling is controlled so that it is carried out homogeneously from a cold source applied for a predefined duration.

[0025] According to one embodiment, demolding includes separating the formwork into two parts fixed by removing a fixing of the two parts via a common base.

[0026] According to one embodiment, the process for manufacturing a wax container comprises the following steps:

[0027] ■ Screwing a wax lid onto the wax piece made so as to form a first contact aimed at adapting the thread of the piece with the thread of a lid.

[0028] According to one embodiment, the process of manufacturing a wax container involves screwing a threaded metal lid onto the wax piece produced after molding in order to refine the threaded part.

[0029] Brief description of the figures

[0030] Other features and advantages of the invention will become apparent from the detailed description that follows, with reference to the attached figures, which illustrate:

[0031] Fig.1: an example of the realization of a container of the invention made of wax having a thread on the outer edge;

[0032] Fig.2: an example of an embodiment of a wax lid of the invention having a thread arranged inside the edge of said lid; Fig.3: a cross-sectional view of a silicone mold for manufacturing a container of the invention;

[0033] Fig. 4: An example of the implementation of a wax injector for the manufacture of a container of the invention

[0034] Fig.5: an example of the construction of a formwork forming a mold of an external shape of a container or container;

[0035] Fig.6: an example of carrying out a step of introducing the wax injector for the manufacture of a container of the invention within a silicone mold;

[0036] Fig.7: an example of the realization of a cross-sectional view of a part produced by molding according to the process of the invention;

[0037] Fig. 8: an example of the implementation of a sequence of steps in the manufacturing process of the invention.

[0038] Fig.9: an example of the realization of a second realization of a manufacturing process for a container of the invention;

[0039] Fig. 10: an example of a profile of a container of the invention having an internal volume enlarged on the lateral parts;

[0040] Fig. 11: an example of a profile of a container of the invention having an internal volume enlarged on the lateral parts and a concave bottom;

[0041] Fig. 12: an example of a profile of a container of the invention having an internal volume enlarged on the lateral parts and a convex bottom.

[0042] Description of the invention

[0043] Figure 1 shows an example of a container 1 comprising a receptacle 2 and a lid 10. The receptacle forms an enclosure 2 whose shape can be adapted according to the mold used. The container 1 can be considered as a reservoir, an enclosure, or a receptacle comprising an enclosure 2 and an internal space 3 forming a space for a product to be stored.

[0044] The container 1 of the invention comprises, according to one embodiment, 100% beeswax. In another embodiment, the wax may be mixed with one or more additives. The proportion of additives may be in liquid or solid form, for example, in the form of a powder, granules, or fibers.

[0045] In one embodiment, the proportion of additives may be between 0.01% and 50% by mass of the total mass of the container. In another embodiment, the proportion of additives may be between 0.01% and 10% by mass of the total mass of the container.

[0046] Depending on different embodiments, various products such as natural products can be added to the wax in liquid form or after its solidification by application of a coating treatment.

[0047] According to one embodiment, a proportion of propolis can be added and mixed with the wax in liquid form or after its solidification by application of a coating treatment.

[0048] According to one embodiment, a proportion of coffee can be added to the quantity of wax in liquid form in powder or seed form.

[0049] According to one embodiment, a proportion of eggshells may be added to the quantity of wax in liquid form in powder form.

[0050] According to one embodiment, a proportion of plants can be added to the quantity of wax in liquid form in the form of powder or fibers, for example a herb.

[0051] According to one embodiment, a proportion of powdered natural products may be added to the quantity of wax in liquid state.

[0052] According to one embodiment, a proportion of natural product colorant may be added to the quantity of wax in liquid or powder form.

[0053] As an example, one or more essential oils can be mixed with beeswax.

[0054] Depending on different embodiments, different products such as natural products, for example propolis, can be added to the wax in liquid form or after its solidification by application of a coating treatment.

[0055] The container 1 of the invention is preferably designed to receive a cosmetic product or a food product; however, it can receive any other type of product that can be inserted into the container's capacity. The container has an upper part forming a rim 7 with a thread 4. The thread is arranged on the outer part of the rim so as to allow a lid 10 to be screwed on.

[0056] The threading of the container 1 is carried out during the molding operation of the part 1 using a mold 50 forming a formwork defining the outer surface of the part 1.

[0057] Figure 2 represents an example of a lid 10 of the invention for sealing the container 1. The lid 10 advantageously includes a thread 11 inscribed within a rim 13 on an inner face 12 intended to cooperate with the external thread 4 of the container 1.

[0058] According to one embodiment, the thread 4 of the container 1 is extended by a first unthreaded area, i.e. smooth in appearance, and curved according to the circumference of the opening of the container 1. This smooth part can be in line with the threaded part and oriented towards the outside of the lateral part of the container 1.

[0059] According to another embodiment, the thread 4 of the container 1 is extended by a first unthreaded portion oriented outwards from the lateral part of the container 1 and a second part marked 8 oriented towards the part of the space opposite the opening of the container 1. This is the upper rim of the container 1.

[0060] These two circumferential portions increase the contact area of ​​the lid with the receptacle 2 in order to reinforce the sealing of the container 1 and thus allow the preservation of a cosmetic product.

[0061] In one example, a preservation seal can be placed over opening 3. The seal can be made of wax, wax-impregnated fabric, or even a sheet of paper, such as wax-impregnated baking paper. One benefit is to extend the shelf life of a cosmetic product until its first use.

[0062] For example, the container is equipped with an accessory such as a spatula for collecting, for instance, a portion of an ingredient stored in the container, such as a cosmetic cream or other consumable. The spatula is advantageously made of wax. Figure 3 shows an example of an injection insert 30 serving as an inner mold for making a wax container 1. Advantageously, the injection insert 30 is made of silicone so as to allow its insertion into a mold 50 serving as an outer mold. Its insertion into the mold can be done so that it is slightly deformed on the larger diameter side walls to facilitate its insertion into a mold such as the mold 50 shown in Figure 5, which has an internal free volume 51. Figure 5 shows a cross-sectional view of a mold 50 forming a mold for creating the outer shape of a container 1.The internal volume 51 includes a surface 52 outlining the external surface to be molded.

[0063] The smallest diameter of the formwork is defined by the notation on Figure 5. The formwork 50 can be made of a solid material such as a metal, wood, plastic or silicone type material.

[0064] According to one example, the hardness of the mold 50 forming the formwork is between 20 and 60 shore and preferably between 25 and 35 shore.

[0065] According to one example, the hardness of the insert 30 forming the inner mold is between 2 and 10 shore and preferably between 4 and 6 shore.

[0066] When the injection insert 30 is introduced into the formwork 50, the insert 30 can be slightly deformed to allow it to enter the formwork 50. When the formwork 50 is made of a flexible material, such as silicone, the formwork 50 can also be deformed to facilitate the introduction of the insert 30 into the formwork 50.

[0067] According to another embodiment, the insert 30 is not deformed during its insertion into the formwork. Indeed, according to one embodiment, the formwork 50 is arranged around the insert 30 by bringing together two separate parts of the formwork which are subsequently joined by means of the flange 54 and / or the base 61.

[0068] One advantage of using a flexible deformable insert 30 is to allow it to be fixed to an injector 40 having a nozzle 41 which allows it to be integrated into a portion 31 of the insert to be fixed there.

[0069] For example, the injector 40 is made of a material with a hardness exceeding a certain threshold so that it cannot be deformed by hand handling. It could be, for instance, made of plastic, metal, or wood. The injector 40 has a channel 42 for conveying a volume of wax in a liquid or viscous state, opening at the outlet of the channel 42 at the nozzle 41. When the nozzle 41 is secured to a hollow form 31 of the insert 30, the hot wax flows out the other side of the wall of the silicone insert 33 through a channel 35 arranged as an extension of the channel 42.

[0070] Advantageously, the insert 30 has a projecting portion having internal walls 36 forming a shape of revolution adapted to accommodate the tip 41. The tip 41 can thus be held in the shape of revolution 36 thanks to the presence of a circumferential groove 43 formed on the external surface of the tip 41 and cooperating with a ring forming a diameter reduction inside the shape of revolution 36.

[0071] When the insert 30 is thus held with the injector by means of the shape of the distal tip 41 of the injection channel 42, the assembly formed of the injector and the insert can be introduced into a casing 50. An advantage of such an injector 40 is that it has fixing means 44 to determine a position of the insert within the casing 50.

[0072] Figure 5 represents an example of a mold 50 comprising a block 50 having an internal volume 51 to receive the insert 30 equipped with the injector for introducing a volume of hot wax into contact with the internal surface 52 of the mold 50. The mold 50 includes at least one reception area 53 for a fixing means for screwing on a cover 54.

[0073] It is understood that the process of the invention can be adapted to any shape of container 1 whose inlet diameter of the mold used to design its external shape allows the introduction of a deformable insert 30 and an injector 40.

[0074] When this is not possible, another method of the invention can be used to manufacture a container 1 of the invention, in particular from the device of figure 9.

[0075] Figure 6 shows an example of manufacturing a container 1 from a mold forming a form 50 equipped with a lid 54. Figure 6 shows the insert 30 attached to the injector 40, which has been introduced into the volume 51 of the mold 50. A volume of wax Ci is introduced through a channel 55 formed in a flange 54 and extending from the channel 42 of the injector 40. The flange 54 can form a lid for the form 50 to prevent the wax from entering the mold from the outer surface of the container, which defines the form 50.

[0076] The beeswax Ci is introduced in liquid or viscous form so that it flows along the channel 55 of the flange 54, then the channel 42 of the injector 40, and finally the channel 35 to flow along the surface of the mold 50. The hot wax flows in the directions 32 along the inner surface of the mold 50. The wax Ci is guided along the surface 52 of the mold by the shape of the insert 30, which ensures the uniform distribution of the wax along the surface of the mold 50.

[0077] When the hot wax is introduced, the mold can be set in motion to circulate the wax more easily while it is in its liquid state. For example, a sufficient volume of wax Ci is introduced to exert pressure inside the mold 50 so that the wax can be introduced into every available portion of the volume. In another example, vents are formed in the mold or lid, such as the opening 57, so that air can escape and the wax can be trapped in the available volume 51. The opening 57 can advantageously be positioned in line with the upper opening of the insert 30 or the free area receiving the wax volume, that is, where the wax will eventually flow upwards.

[0078] The mold 50 is preferably made of two symmetrical parts 59, 60 delimited by a cutting plane 58. The two parts 59, 60 are assembled during mold formation and held together, for example, by a part 61 forming a common base for both parts 59, 60 of the mold 50. The two internal volumes of the two parts 59, 60 form the overall volume 51 of the mold 50. The threads and screw mounting areas of part 61 can cooperate with mounting areas of each of the parts 59, 60 for the passage of fixing screws. Thus, the base 61 can be fixed to each of the parts 59, 60 so as to hold them together.

[0079] The example in Figure 6 represents a striated interior surface of volume 51. Other patterns can be created to form a surface finish of container 1.

[0080] Figure 6 also shows circumferential volumes 36, 37 forming the opening 3 of the container 1 to be designed. The mold 50 may include an external shape 49 defining the outer surface of a thread. Thus, the thread 4 of the container 1 can be formed directly by the wax introduced and molded onto this inner surface 49 of the mold 50.

[0081] In one embodiment, the flange 54 has reception areas 56 for a fastening means cooperating with the reception areas 44 of the injector 40. The fastening means may be screws cooperating with the reception areas 56 and 44 to secure the injector 40 to the flange 54 of the mold 50. One advantage is to allow for proper positioning of the injector 40 within the molding forming the mold 50.

[0082] Figure 7 shows an example of a cross-sectional view of a container 1 produced using the manufacturing process of the invention. The container 1 thus formed has an internal diameter d2 and a diameter d1 of the opening area. The container 1 has a thickness formed by a volume of cooled and hardened wax. The cooled container 1 can then be used to hold a contents such as a cosmetic cream.

[0083] According to one embodiment, the process of the invention makes it possible to obtain wax containers whose internal width d2 is greater than the width of the opening d1 of the container. The container 1 of the invention thus obtained comprises an optimized internal volume, allowing for larger capacities than prior art containers. Indeed, when working with a material like wax, which can be weakened during the design process, it is easier to produce containers whose internal width d2 is equal to or substantially equal to the width of the opening d1, particularly because the molding is homogeneous and does not require removing a part from the mold larger than its opening. The process of the invention overcomes this problem of design fragility through the use of a mold and a polymer insert, such as a silicone insert, and a specific injection molding process.

[0084] The container 1 of the invention provides internal openings shown in Figures 7, 10, 11, and 12, obtained with non-zero opening angles A1, A2 with respect to the vertical 58 when the container 1 is placed on a horizontal surface. The angles A1, A2 are shown in the cross-sectional view but are in fact the same, given that the container 1 has rotational symmetry about the axis 58. This opening angle A1, A2 defines a slope of the inner wall of the volume oriented towards the outer wall of the container 1.

[0085] To define the orientation of the slope relative to the vertical, a first orientation of the opening angle A1, A2 can be defined with respect to the vertical 58, which intercepts the bottom of the container, or a second orientation of the opening angle with respect to the vertical 58, which does not intercept the bottom of the container. The invention allows for all angle configurations, including a first or second orientation. However, the invention also allows for the creation of volumes with second orientations A1, A2 using a material such as wax without weakening the container. This second orientation allows for a container width greater than the width of the container opening.

[0086] Consequently, the invention makes it possible to obtain large internal volumes while saving the amount of wax used to define the walls of this volume. The container 1 is thus compact while offering maximum internal volume.

[0087] Figure 7 illustrates a case where the opening angles A1 and A2 are approximately 30° in absolute value. If the line formed by the tangent to the wall surface at the opening is extended, this line does not intersect the bottom of the container 1. Consequently, this configuration allows for large internal volumes with a maximum width d2 greater than the width d1 of the opening. The case in Figure 10 or 12 represents an opening angle of 90° in absolute value. Here, the opening angles A1 and A2 are considered from the lower part of the opening, which has a certain height and a straight profile parallel to the vertical line 58.

[0088] Thanks to the process of the invention, it is possible to obtain volumes with very different profiles inside the container 1. Thus, Figure 11 represents a case in which the base is convex inwards. When the outer surface of the base is slightly convex, this creates a circumferential portion 91 at the bottom of the container 1, allowing for greater stability of said container. This configuration allows the center of the container 1 to be raised by a distance d3 relative to a support surface on which the container 1 is placed. With wax, surfaces can become damaged, break, or crumble. Thus, the surface of the base may not remain flat due to deformation or alteration and may form an outer surface that destabilizes the container when it is handled and placed back on a support surface, thereby causing new shocks that are distributed and absorbed unevenly across the outer surface of the base.

[0089] Figure 12 illustrates another embodiment of the container base that maximizes the internal volume by obtaining the additional internal volume defined by the depth d4 between the lowest position of the container base and the lowest horizontal line passing through two points of the container's internal volume located along the vertical wall of said container 1. The "low" position of the container is defined as when it is placed on a horizontal surface, with the lowest position being the one closest to the ground. In this example, the surface is thus convex outwards from the container's volume. This configuration provides an additional point of stability with the central point of the outer surface of container 1, which in turn provides an additional point of support on the surface on which the container rests.

[0090] Thus, the process of the invention makes it possible to obtain convex or concave surfaces on the outer and inner bottom of the container 1 or on the inner or outer lateral surfaces of the container 1.

[0091] In one embodiment, the outer surface of the base is concave, that is, curved inwards towards the volume of the container 1, so as to allow legible markings on the outer surface of the base of the container 1. The marking can, for example, be made directly within the wax. An advantage of a concave base, that is, one curved inwards towards the volume of the container 1, is that the marking does not wear away and become erased when the container is placed on a support surface. In this case, a zone 92 is shown in Figure 11 that is not in direct contact with a support surface on which the container 1 is placed. One advantage is that it allows, for example, the marking of an expiration date or any other information addressed to the consumer of the container 1.The circumferential rim 91 of the base of container 1 allows the container 1 to be positioned while protecting the central part used for inscription. The inscription can also be a label or any other medium affixed to the outer surface of the base of the container.

[0092] An example of a concave bottom profile is shown in Figure 11. This example could also have a side profile such as that of Figure 12, i.e. with a circular wall around axis 58 and straight in the direction of the height of the container.

[0093] In one embodiment, the outer surface of the base of the container is convex, that is, it curves outwards from the volume of the container 1 as shown in Figure 12. In this case, the container 1 advantageously has areas 93 not directly in contact with a support surface, allowing inscriptions to be made on the wax, for example, an inscription in the form of an engraving or a label. The circumferential rim 91 provides a uniform contact area, ensuring good stability.

[0094] Figure 8 represents an example of implementation of the steps of a process of the invention using an insert 30, an injector 40 and a mold 50.

[0095] The first step aims to secure the insert 30 with the injector 40. This step is not shown in figure 8.

[0096] A second step involves securing the cover 54 of the formwork 50 with the injector 40 using the provided fixing means comprising the reception areas 56, 44 and the fixing screws (not shown).

[0097] A third INS step for introducing insert 30 is carried out. The parts 30, 40, and 54, thus joined together, allow the insert 30 to be introduced into the mold 50, while positioning the insert correctly within the mold 50. To center the position of the insert in the mold, alignment guides or markings can be used.

[0098] A fourth INJ step involves injecting hot wax Ci into channel 55, then channel 42, and finally channel 35. The hot wax Ci then spreads throughout the available volume within mold 50.

[0099] A REF cooling step allows the wax Ci to solidify within the volume occupied in the mold 50.

[0100] When the REF cooling and therefore the solidification of the wax Ci are achieved, the mold 50 can be separated. In one example, it is separated into two identical parts, as is the lid 54, which is attached to the injector 40. This step corresponds to the demolding of the mold 50 from the outer surface of the container 1.

[0101] In one embodiment, cooling is carried out in such a way as to uniformly cool the entire volume. One advantage is the ability to control the deformations occurring during cooling.

[0102] According to one embodiment, the cooling of the molten wax occurs by gradually reducing the temperature over two to three hours.

[0103] Then, the injector 40 can be extracted by simply pulling it out. Since it is fixed by two cooperating forms at its distal end 41 within the silicone insert 30, the latter detaches according to the applied force. Because the insert 30 is naturally retained in the wax form due to the curvature narrowing at the mouth 3 forming the opening of the container 1, the force applied at the junction 31 allows the injector to detach first.

[0104] Finally, an EXT extraction step of the insert 30 is performed. To avoid deformation of the wax container 1, according to one embodiment, the insert 30 is removed by deforming it. The process of the invention is preferably carried out with a flexible insert 30, made of silicone, for example, having a Shore hardness of 5. This detachment can be achieved by following the circumferential outline of the opening area of ​​the insert and then deforming the silicone wall to remove it from the inner volume of the container 1.

[0105] The advantage of using a flexible deformable insert 30 is that during the process of removing the insert 30, the wax product 30 is not deformed, thus guaranteeing the quality of the wax product.

[0106] Container 1 is then made.

[0107] Figure 9 shows a device 70 for manufacturing a container 1 according to a second method of manufacturing a wax part forming a container. This manufacturing method is used in particular when it is not possible to insert a silicone insert 30 into a mold.

[0108] The manufacturing device 70 includes means for rotating a mold 80, which has the inner shape of the outer surface of the part to be produced, in several directions. Thus, the wax introduced into the mold is propelled in all directions against the shape of the mold during the rotation of the mold 80. The wax Ci is projected uniformly onto the inner surface of the mold 80.

[0109] To obtain a homogeneous container 1, that is, one with a volume of wax evenly distributed throughout its entire volume, the mold's rotation means are designed to facilitate rotation of the mold in two directions, Ri and F. For this purpose, the device 70 includes manual or automatic means for rotating a first frame 71 and a second frame 72. The second frame 72 can rotate around an axis 75 fixed to the first frame 71. The first frame 71 can rotate around an axis 74 extending in a direction perpendicular to the axis of rotation 75 of the second frame. Thus, the two rotations allow for a large number of mold positions during the cooling of the wax, so that the wax can be distributed over the entire internal surface of the mold's volume.

[0110] Various positioning and attachment systems for the mold 80 can be used. As an example, elastic bands 76 can be used to hold the mold within the second frame 72.

[0111] Finally, a positioning system for the device 70 prevents translational movement of the mold, for example, by using support feet 73. A crank 78 drives the rotation of the two frames 71, 72 to rotate the mold. Alternatively, electronic means and a motor can be configured to rotate the shaft 74.

[0112] In one embodiment, a drive system 77, 79, 78 for the shaft 75 is implemented, driven by the rotation of the shaft 74. In this example, wheels 77 are connected to each other by means of a belt 79 to drive the rotation of the shaft 75 from the shaft 74.

[0113] The rotation of mold 80 is carried out for a predetermined duration. This duration is preferably maintained for the entire cooling time of the wax inside mold 80.

[0114] Next, the mold is removed from device 70 and it can be removed.

[0115] Different examples of demolding can be achieved depending on the mold 80 used.

[0116] If the mold 80 is flexible and deformable, it can be removed by unrolling it along the surface of the inner part's volume. If the mold is made of a material with a hardness that prevents deformation of its outer shell, it is separated by disassembly. For example, like the mold 50, which is designed in two parts, the mold 80 may consist of two parts joined together by fastening means. These fastening means (not shown) can be undone so that the mold 80 can be opened and the molded part 1 extracted.

[0117] One advantage of the invention is that it overcomes a problem related to beeswax and its hardening. Indeed, beeswax naturally shrinks by about 3% of its volume. Thus, by positioning the thread 4 on the outside of the receptacle 2 at the opening 3, it can engage with the corresponding thread on the lid. A problem with internal threads, which are easier to manufacture, is that the container's seal is not guaranteed after several uses. In fact, a lid inserted into the opening 3 of a container does not ensure, over time and with repeated use, the necessary seal for preserving a cosmetic product.

[0118] During manufacturing, the shrinkage of the wax volume can be anticipated so that the threads of the receptacle 21 of the lid 10 cooperate in a fitted manner.

[0119] According to one embodiment, the process of the invention, regardless of the manufacturing method shown in Figure 6 or Figure 9, includes a step of coating the surface of the produced container. The container may be coated with a quantity of beeswax to ensure the protective properties of the packaging, in particular ensuring hygroscopic and airtight properties to prevent the growth of microbiology.

[0120] According to one embodiment, a step of introducing additional natural additives such as fine organic solid particles is carried out.

[0121] As an example, a quantity of propolis can be introduced into beeswax.

[0122] The propolis can be introduced, for example, when the wax is in a liquid state, so that it is mixed with it to give it specific characteristics, such as improved sealing. According to another embodiment, which may or may not be combined with the latter, the propolis can be applied as a layer to the beeswax container once it has been formed, thus creating an additional layer. This embodiment also provides improved sealing for the container.

[0123] As an example, essential oils can be introduced into the beeswax forming the material of the container to improve the quality characteristics of the products, such as the resistance of the products and their preservation, the functionality by preserving the functions of the product or by promoting the aromatherapy of the product.

[0124] In one embodiment, the invention relates to a container to which a thin layer of cardboard, paper, or plastic impregnated with wax or propolis has been applied. In a first example, this layer can be introduced into the mold during the hot wax casting process. In a second example, the additional layer can be applied subsequently after the container has been made.

[0125] Such a solution makes it possible to reinforce the water-repellent properties of the container and its hydrophobic quality, allowing it to keep a product in an airtight container.

Claims

DEMANDS 1. Wax container (1) comprising a receptacle (2) and a lid (10), said receptacle (2) comprising a space for receiving a product to be preserved and a closing space (2, 3) suitable for cooperating with said closing lid (10), the closing space (2, 3) comprising a circular rim (7) comprising an external thread (4) in wax, the lid (10) comprising a circular rim (13) comprising an internal thread in wax (11), said rim of the lid (13) comprising a diameter greater than the rim (7) of the closing space of the receptacle (2).

2. Wax container (1) according to claim 1 characterized in that it comprises a reception space with a larger internal diameter than the diameter of the internal circular edge (7) of the receptacle (2).

3. Wax container (1) according to any one of the preceding claims characterized in that it comprises a minimum thickness of 5mm.

4. Wax container (1) according to any one of the preceding claims characterized in that it comprises a wax seal for closing the closing space (2, 3).

5. Wax container (1) according to any one of the preceding claims characterized in that it is intended to receive a cosmetic product.

6. Wax container (1) according to any one of the preceding claims characterized in that it comprises a wick intended to be lit after use of the cosmetic product, said wick being integrated in part into the wax either in the lid (10) or in the bottom of the receptacle (2).

7. Wax container (1) according to any one of the preceding claims characterized in that it comprises an inner convex lateral surface.

8. Wax container (1) according to any one of the preceding claims characterized in that it comprises a concave inner lateral surface.

9. A method for manufacturing a wax part defining a container (1) intended to receive a product to be preserved, said method comprising the following steps: ■ Securing an inner silicone mold (30) with an injector (40) so as to make a hot wax introduction channel of the injector (40) cooperate with a passage channel (35) formed in the inner silicone mold so as to pass the hot wax along the surface of the silicone mold; ■ Introduction (INS) of the injection insert (40) secured with the silicone mold (30) within an internal space of a formwork forming an external mold (50) to define the external surface of a part to be molded (1); ■ Joining the insert (30) forming the inner mold (30), the injector (40) and the formwork (50) forming the outer mold so as to define an inner volume defining the volume of the part to be formed; ■ Injection (IN J) of a volume of wax (IN J) into the injection channel (42) until the hot molten wax fills the free space of the outer mold (50); ■ Cooling (REF) of the wax within the mold (50); ■ Demolding and extraction (EXT) of the injection insert (40) and removal of the silicone mold (30). ■ Screwing (SCREW) a wax lid (10) onto the wax or metal part made so as to form an initial contact intended to adapt the thread of the part (1) with the thread of a lid 10. Method for manufacturing a wax container (1) according to claim 9 characterized in that the joining of the inner silicone mold (30) with the injector (40) includes the positioning of a channel of the insert (30) opposite a channel of the injector (40).

11. Method of manufacturing a wax container (1) according to claim 9 characterized in that the joining of the inner silicone mold (30) with the injector (40) includes their joining with a lid (54) of the casing (50) so that the arrangement of the insert (30) and the injector (40) within said casing (50) allows the casing (50) to be closed with the lid (54) so ​​as to form a space for receiving the hot wax.

12. Method of manufacturing a wax container (1) according to claim 9 characterized in that the injection (INJ) of the volume of wax (INJ) is carried out via a channel formed in the lid (54) and extending into the injection channel of the injector (40) and opening into the channel of the insert (30) which itself opens into the space for receiving the volume of wax between the insert (30) and the casing (50).

13. Method for manufacturing a wax container (1) according to claim 9 characterized in that the cooling is controlled so that it is carried out homogeneously from a cold source applied for a predefined time.

14. Method of manufacturing a wax container (1) according to claim 9 characterized in that the demolding comprises the separation of the mold (50) into two parts fixed by the removal of a fixing of the two parts by means of a common base.

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