Ceramic container and preparation method thereof

Abstract

The invention provides a ceramic container and a preparation method thereof, and relates to the technical field of containers. The ceramic container comprises a bottle head, a bottle body and a bottle bottom from top to bottom; the bottle head and the bottle body are integrally formed or movably fastened, an open hole is formed in the bottom of the bottle body, and the bottle bottom is matched with the open hole and seals the open hole; the bottle head, the bottle body and the bottle bottom are all made of zirconia-based ceramic. The ceramic container has the advantage of being resistant to falling and is suitable for being used as a container for perfume and the like.

Description

Technical Field

[0001] This invention belongs to the field of container technology and relates to a ceramic container and its preparation method. Background Technology

[0002] Small, portable containers for personal care products are convenient to carry and use. Currently, these containers are generally made of glass, but if the glass is too thin, it is easily broken; if it is too thick, it is heavy and the user experience is not good.

[0003] Ceramic materials are characterized by high strength, safety, and impact resistance. Moreover, the surface is easy to decorate and can be easily shaped into a beautiful appearance. However, ceramics are more difficult to process than glass, especially for containers used in personal care products. For example, containers with spray nozzles are irregularly shaped containers. Glass is relatively easy to mold in one piece, while ceramics are very difficult to mold in one piece, with complex mold design and a very low production yield.

[0004] Therefore, there is a need to develop a ceramic container with a relatively simple preparation method, making it suitable as a container for personal care products, such as perfumes, lotions, toners, creams, and makeup removers. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a ceramic container and its preparation method.

[0006] The technical solution of the present invention is as follows:

[0007] A ceramic container, comprising, from top to bottom, a bottle head, a bottle body, and a bottle bottom;

[0008] The bottle head and the bottle body are integrally formed or movably fastened;

[0009] The bottom of the bottle has an opening, and the bottom of the bottle matches the opening and seals the opening;

[0010] The bottle head, bottle body, and bottle bottom are all made of zirconium oxide-based ceramic.

[0011] Preferably, the movable fastener is a rotational fastener or a snap-fit ​​fastener.

[0012] More preferably, a sealing element is provided between the bottle head and the bottle body for sealing during the active fastening process.

[0013] Preferably, the opening is made so that the bottom of the bottle is hollow.

[0014] Preferably, the diameters of the two surfaces of the bottle bottom along the thickness direction are not equal.

[0015] More preferably, the diameter of the surface of the bottle bottom away from the bottle head is larger than the diameter of the surface near the bottle head.

[0016] Preferably, the seal is achieved using an adhesive or PMMA;

[0017] The adhesive or the PMMA at least fills the contact surface between the bottom of the bottle and the opening.

[0018] A method for preparing a ceramic container, wherein the ceramic container comprises, from top to bottom, a bottle head, a bottle body, and a bottle bottom;

[0019] The bottle head and the bottle body are integrally formed or movably fastened;

[0020] The bottom of the bottle has an opening, and the bottom of the bottle matches the opening and seals the opening;

[0021] The bottle head, bottle body, and bottle bottom are all made of zirconium oxide-based ceramic.

[0022] The preparation method is as follows:

[0023] The bottle head, bottle body, and bottle bottom are respectively manufactured in one piece using a molding process;

[0024] Align the bottle bottom with the opening, so that the first sealant covers the bottle bottom and / or fills the contact surface between the bottle bottom and the opening;

[0025] Alternatively, the preparation method is as follows:

[0026] The bottle head, bottle body, and bottle bottom are respectively prepared by a molding process;

[0027] The bottle head and the bottle body are fastened together in a movable manner;

[0028] Align the bottle bottom with the opening, so that the second sealant covers the bottle bottom and / or fills the contact surface between the bottle bottom and the opening.

[0029] Preferably, the filling method is to evacuate the inside of the bottle body to allow the first sealant or the second sealant to penetrate into the contact surface, or the filling method is to apply the first sealant or the second sealant to the contact surface.

[0030] Preferably, the first sealant and the second sealant are individually selected from ceramic adhesives or molten PMMA.

[0031] The beneficial effects of this invention are:

[0032] (1) This invention divides the one-piece, impact-resistant ceramic container into two or three separate structures, which greatly reduces the molding difficulty and the requirements for molds, and effectively improves production efficiency and yield. Moreover, the container can be assembled by simply fixing and sealing the structures. When the bottle head and body are loosely fastened, the ceramic container can be reused by disassembling and re-fastening.

[0033] (2) For sealing the bottom of ceramic containers, the present invention uses a vacuum method to evacuate the inside of the bottle so that the ceramic adhesive or molten PMMA can penetrate into the contact surface and achieve a seal, or the sealant can be directly applied to the contact surface between the bottom of the bottle and the opening, which has a good sealing effect and is easy to operate. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the ceramic container in Example 1.

[0035] Figure 2 This is a schematic diagram of the structure of the ceramic container in Example 2.

[0036] Figure 3 This is a schematic diagram of the structure of the ceramic container in Example 3. Detailed Implementation

[0037] The technical solution of the present invention will be further explained and described below through specific embodiments. In one aspect, the present invention proposes a ceramic container, comprising, from top to bottom, a bottle head, a bottle body, and a bottle bottom;

[0038] The bottle head and body are either integrally molded or securely fastened;

[0039] There is an opening at the bottom of the bottle, and the bottom of the bottle matches the opening and seals it.

[0040] The bottle head, body, and bottom are all made of zirconium oxide-based ceramic.

[0041] Taking a ceramic perfume bottle as an example, besides the spray nozzle for spraying perfume, there is also a container for holding the perfume. The container, from top to bottom (with the spray nozzle at the top and the bottom of the perfume bottle at the bottom), includes a bottle head, a bottle body, and a bottle bottom. The spray nozzle is installed on the bottle head. This invention separates the bottle head, bottle body, and bottle bottom into two or three structures, each molded separately (e.g., CIP molding). One type involves the bottle head and bottle body being molded as a single unit plus the bottle bottom, while another type involves the bottle head and bottle body being molded separately but can be loosely and securely fastened, plus the bottle bottom, making it a three-structure system. Both significantly reduce the difficulty of molding, decrease mold complexity, and improve production yield. For the separately molded but loosely fastened bottle head and bottle body structure, the bottle head and bottle body can be disassembled and re-secured, allowing the ceramic container of this invention to be reused. An opening at the bottom of the bottle body facilitates molding; the opening is sealed through the bottle bottom, achieving a seal at the bottom of the ceramic container.

[0042] In this invention, the bottle head, body, and bottom are all made of zirconia-based ceramic (e.g., doped with Y₂O₃, MgO, etc.), which achieves good drop resistance. The size of the ceramic container in this invention is not particularly limited; for example, the height of the ceramic container can be 3cm-30cm, the outer diameter of the bottle body can be 1cm-5cm, and the inner diameter of the bottle body can be 0.5cm-4.5cm. For instance, as a portable perfume bottle, the container height can be 5cm, the outer diameter of the bottle body can be 1cm, and the inner diameter of the bottle body can be 0.7cm.

[0043] In some embodiments, the movable fastener is a rotational fastener or a snap-fit ​​fastener. Using a movable fastener allows for the reuse of the ceramic container. Furthermore, in the case of a rotational fastener, the bottle head has internal threads, and the corresponding part of the bottle body has external threads, with the internal and external threads matching. Furthermore, when the movable fastener is used, a sealing element is provided between the bottle head and the bottle body to prevent leakage or evaporation of substances inside the ceramic container. For example, perfume is volatile, and if the ceramic container is not airtight, the perfume will easily evaporate.

[0044] In some embodiments, the bottom of the bottle body is hollow. In this case, the bottom of the bottle body has a hollow structure with an opening. The bottle bottom can be a plate-like structure composed of two frustums, with the diameter of the lower frustum being larger than that of the upper frustum. The diameter of the upper frustum can be less than or equal to the inner diameter of the bottle body, and the diameter of the lower frustum is larger than or equal to the outer diameter of the bottle body. The lower frustum serves to limit and seal the opening. There are no particular restrictions on the thickness of the upper and lower frustums; for example, the thickness of the lower frustum can be 0.5-2 mm, and the thickness of the upper frustum can also be 0.5-2 mm. Alternatively, the diameter of the opening can be larger than the inner diameter of the bottle body and smaller than the outer diameter of the bottle body, forming a concave structure at the bottom of the bottle body. This facilitates the limiting of the bottle bottom when sealing the opening.

[0045] In some embodiments, the diameters of the two surfaces of the bottle bottom along the thickness direction are unequal. In this invention, the bottle bottom is used to block and seal the opening at the bottom of the bottle body. The bottle bottom has a sheet-like structure with upper and lower surfaces. The unequal diameters of the two surfaces of the bottle bottom along the thickness direction make it easier to block and seal the opening at the bottom of the bottle body. Due to the matching between the opening at the bottom of the bottle body and the bottle bottom, when the diameters of the two surfaces of the bottle bottom along the thickness direction are unequal, a corresponding shape also exists at the opening at the bottom of the bottle body.

[0046] In some embodiments, the diameter of the surface of the bottle bottom furthest from the bottle head is larger than the diameter of the surface near the bottle head. Taking the surface of the bottle bottom furthest from the bottle head as the lower surface and the surface near the bottle head as the upper surface, the larger diameter of the lower surface allows the sealant to penetrate into the contact surface (also called the sealing surface) between the bottle bottom and the opening at the bottom of the bottle body when a vacuum is applied inside the bottle. This prevents the bottle bottom from being drawn into the bottle body, thus avoiding sealing failure of the opening. The larger diameter of the surface of the bottle bottom furthest from the bottle head corresponds to a structure that is narrower at the top and wider at the bottom; for example, it could be a frustum shape. The diameter difference between the upper and lower surfaces is not particularly limited and can be 0.1mm, 0.2mm, 0.3mm, 0.5mm, 1mm, 1.5mm, 2mm, etc. Correspondingly, the opening structure at the bottom of the bottle body is also narrower at the top and wider at the bottom.

[0047] In some embodiments, the seal is achieved using an adhesive or PMMA;

[0048] The adhesive or PMMA should at least fill the contact surface between the bottom of the bottle and the opening.

[0049] For the adhesive, it can be epoxy-based ceramic adhesive, acrylic-based ceramic adhesive, or silicone-based ceramic adhesive, etc., which can be directly obtained from the market. The adhesive or PMMA should at least fill the contact surface between the bottom of the bottle and the opening to achieve good adhesion and sealing to the bottom and body of the bottle.

[0050] On the other hand, the present invention also proposes a method for preparing a ceramic container, which comprises, from top to bottom, a bottle head, a bottle body, and a bottle bottom;

[0051] The bottle head and body are either integrally molded or securely fastened;

[0052] There is an opening at the bottom of the bottle, and the bottom of the bottle matches the opening and seals it.

[0053] The bottle head, body, and bottom are all made of zirconium oxide-based ceramic.

[0054] The preparation method is as follows:

[0055] The bottle head, bottle body, and bottle bottom are manufactured in one piece using a molding process.

[0056] Align the bottom of the bottle with the opening, so that the first sealant covers the bottom of the bottle and / or fills the contact surface between the bottom of the bottle and the opening;

[0057] Alternatively, the preparation method is as follows:

[0058] The bottle head, bottle body, and bottle bottom are manufactured separately using a molding process;

[0059] The bottle head and bottle body are secured with a movable fastener.

[0060] Align the bottom of the bottle with the opening, so that the second sealant covers the bottom of the bottle and / or fills the contact surface between the bottom of the bottle and the opening.

[0061] In the ceramic container manufacturing method of this invention, two different methods are proposed for two different structures: integral molding of the bottle head and bottle body, and separate molding of the bottle head and bottle body. For separate molding of the bottle head and bottle body, the bottle head and bottle body can be loosely fastened (e.g., by rotational fastening). In this invention, the molding process can be dry molding, such as cold isostatic pressing (CIP molding), dry pressing, etc.

[0062] For sealing the contact surface between the bottle bottom and the bottom opening of the bottle body, a first sealant or a second sealant is applied to the bottle bottom to block and seal the contact surface; furthermore, the first sealant or the second sealant penetrates into the contact surface between the bottle bottom and the bottom opening of the bottle body, resulting in a better sealing effect, and excess adhesive adhering to the lower surface of the bottle bottom can be wiped off before it cures, and if it has cured or there is residual cured material, it can be sanded off.

[0063] In some embodiments, the filling method involves evacuating the interior of the bottle to allow the first or second sealant to penetrate into the contact surface, or the filling method involves applying the first or second sealant to the contact surface. Since the gaps between the contact surfaces are very small, evacuating the interior of the bottle facilitates the penetration of the first or second sealant into the gaps of the contact surface, where it cures and provides a seal. By controlling the vacuum level and evacuation time, the first or second sealant can be allowed to penetrate only into the contact surface without further penetrating into the interior of the bottle. When the area of ​​the contact surface is large enough, the first or second sealant can also be directly applied to the contact surface.

[0064] In some embodiments, the first sealant and the second sealant are individually selected from ceramic adhesives or molten PMMA. The ceramic adhesive may be an epoxy-based ceramic adhesive, an acrylic-based ceramic adhesive, or a silicone-based ceramic adhesive, etc., and is commercially available. PMMA is also commercially available; molten PMMA can be used as a sealant for openings at the bottom of the bottle and the bottom of the bottle body.

[0065] The technical solutions of the present invention will be further described and explained below with reference to various embodiments.

[0066] Example 1

[0067] See attached document Figure 1The ceramic container in this embodiment includes a bottle head 1, a bottle body 2, and a bottle bottom 3. All three components are made of yttrium oxide-doped zirconia ceramic, offering good impact resistance. The bottle head 1 and bottle body 2 are integrally molded using a CIP (Continuous In-Place) molding process, while the bottle bottom 3 is molded separately. The height from the bottle head 1 to the bottle bottom 3 is 10cm, the outer diameter of the bottle body 1 is 2cm, and the inner diameter is 1.8cm. The bottle head 1 is matched with the spray nozzle. Figure 1 (The structure of the bottle head 1 and the nozzle matching is not shown). The hollow structure at the bottom of the bottle body 2 is an opening 4 with a diameter of 1.8cm. The bottle bottom consists of two frustums, the upper frustum 3-1 matching the size of the opening, and the lower frustum 3-2 with a diameter of 2cm.

[0068] Ceramic adhesive is applied to the upper surface of the lower frustum 3-2 that is not covered by the upper frustum 3-1. The bottom of the bottle 3 is then used to cover the opening 4. The adhesive is cured to obtain a ceramic container.

[0069] Example 2

[0070] See attached document Figure 2 This embodiment differs from Embodiment 1 except for the following: the opening 4 at the bottom of the bottle body 2 is a conical frustum, narrower at the top and wider at the bottom. The diameter of the upper surface of the frustum is 1.8 cm, the diameter of the lower surface is 1.9 cm, and the height is 1 mm. The structure of the bottle bottom 3 matches the conical frustum, with the diameter of the upper surface 3-3 being 1.78 cm, the diameter of the lower surface 3-4 being 1.88 cm, and the height being 1 mm.

[0071] Cover the bottom 3 of the bottle with the opening 4, apply ceramic adhesive along the seam between the bottom 3 and the opening 4, seal the bottle head 1, and then evacuate the inside of the bottle. The ceramic adhesive will penetrate into the contact surface along the seam between the bottom 3 and the opening 4. Stop evacuating and pressurize the bottle to normal pressure. Wipe away any excess adhesive from the bottom of the bottom 3. The adhesive on the contact surface will then cure, thus obtaining a ceramic container.

[0072] Example 3

[0073] See attached document Figure 3 The ceramic container in this embodiment includes a bottle head 1, a bottle body 2, and a bottle bottom 3. The bottle head 1, bottle body 2, and bottle bottom 3 are all made of yttrium oxide-doped zirconia ceramic, which has good impact resistance. The bottle head 1, bottle body 2, and bottle bottom 3 are formed using a CIP molding process. The lower part of the bottle head 1 has an external thread, and the upper middle part of the bottle body 2 has an internal thread that matches the external thread. Figure 3 (External and internal threads are not shown in the image). The bottle head 1 and bottle body 2 are tightened by rotation and sealed with a sealing gasket (the sealing gasket is in...). Figure 3 (Not shown in the image). The height from bottle head 1 to bottle bottom 3 is 6cm, the outer diameter of bottle body 1 is 1.5cm, and the inner diameter is 1.3cm. Bottle head 1 matches the spray nozzle. Figure 3(The structure of the bottle head 3 matching the nozzle is not shown). The hollow structure at the bottom of the bottle body 2 is a disc-shaped opening 4 with a diameter of 1.4cm and a height of 0.2cm. The bottle bottom is disc-shaped with a diameter of 1.37cm and a height of 0.2cm.

[0074] The ceramic container was obtained by applying and curing the adhesive according to the application process in Example 2.

[0075] As described above, the basic principles, main features, and advantages of the present invention have been shown and described. Those skilled in the art should understand that the present invention is not limited to the above embodiments, which are merely preferred embodiments and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made in accordance with the scope of the patent and the description should still fall within the scope of the present invention. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A ceramic container, characterized in that, From top to bottom, it includes the bottle head, bottle body, and bottle bottom; The bottle head and the bottle body are integrally formed or movably fastened; The bottom of the bottle has an opening, and the bottom of the bottle matches the opening and seals the opening; The bottle head, bottle body, and bottle bottom are all made of zirconium oxide-based ceramic.

2. The ceramic container according to claim 1, characterized in that, The movable fastening is either a rotational fastening or a snap-fit ​​fastening.

3. The ceramic container according to claim 2, characterized in that, When the device is tightened, a sealing element is installed between the bottle head and the bottle body to achieve a seal.

4. The ceramic container according to claim 1, characterized in that, The opening is made so that the bottom of the bottle is hollow.

5. The ceramic container according to claim 1, characterized in that, The diameters of the two surfaces of the bottle bottom along the thickness direction are not equal.

6. The ceramic container according to claim 5, characterized in that, The diameter of the surface of the bottle bottom furthest from the bottle head is larger than the diameter of the surface closest to the bottle head.

7. The ceramic container according to claim 1, characterized in that, The seal is achieved using an adhesive or PMMA; The adhesive or the PMMA at least fills the contact surface between the bottom of the bottle and the opening.

8. A method for preparing a ceramic container, characterized in that, The ceramic container comprises, from top to bottom, a bottle head, a bottle body, and a bottle bottom; The bottle head and the bottle body are integrally formed or movably fastened; The bottom of the bottle has an opening, and the bottom of the bottle matches the opening and seals the opening; The bottle head, bottle body, and bottle bottom are all made of zirconium oxide-based ceramic. The preparation method is as follows: The bottle head, bottle body, and bottle bottom are respectively manufactured in one piece using a molding process; Align the bottle bottom with the opening, so that the first sealant covers the bottle bottom and / or fills the contact surface between the bottle bottom and the opening; Alternatively, the preparation method is as follows: The bottle head, bottle body, and bottle bottom are respectively prepared by a molding process; The bottle head and the bottle body are fastened together in a movable manner; Align the bottle bottom with the opening, so that the second sealant covers the bottle bottom and / or fills the contact surface between the bottle bottom and the opening.

9. The method for preparing a ceramic container according to claim 8, characterized in that, The filling method is to evacuate the inside of the bottle to allow the first sealant or the second sealant to penetrate into the contact surface, or the filling method is to apply the first sealant or the second sealant to the contact surface.

10. The method for preparing a ceramic container according to claim 8, characterized in that, The first sealant and the second sealant are individually selected from ceramic adhesives or molten PMMA.

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