KR20200060570A - Decorative case and method for manufacturing the same - Google Patents

Abstract

A decorative case may comprise: a lower plate; an at least partially and optically transparent upper plate facing the lower plate; and decorative liquid disposed in a space between the lower plate and the upper plate and including mineral oil and a pearlescent pigment dispersed in the mineral oil. The decorative case is attached to a product such as a cosmetic while accommodating the decorative liquid in which the pearlescent pigment is dispersed, thereby adding an aesthetic sensation to the product. The decorative case is advantageous in that, due to fluidity of the pearlescent pigment, the decorative case has an excellent aesthetic sensation and consumers may not feel bored easily, and various colors and gloss can be implemented according to the composition of the decorative liquid.

Description

DECORATIVE CASE AND METHOD FOR MANUFACTURING THE SAME}

Embodiments are directed to a decorative case and a method for manufacturing the same, and more specifically, a decorative case in which a pearlescent pigment is dispersed and accommodated therein is attached to a product such as a cosmetic, thereby adding an aesthetic sense to the decorative case. It's about how.

Cosmetics to dress up have long been considered exclusively for women, but in recent years, due to the development of the media, there are many cases where cosmetics are used or carried regardless of gender. Cosmetics are commercialized and sold in various forms, such as compact, foundation, and stick, depending on the type of cosmetic, and cosmetic products are competitive in the market. It also has a big impact.

The design differentiation of the conventional cosmetic case is generally made by the structural modification of the case itself or by the degree of decoration to attach the decorative plate to one area of the cosmetic product. However, these conventional design differentiating factors are limited by the applicable design depending on the product type, and if the case structure is large, the function may be impaired or the production cost may be increased, and once decorated, the shape is fixed. It has the problem of getting tired easily.

Korean Registered Utility Model Publication No. 20-0429568

According to an aspect of the present invention, by attaching a decorative liquid in which pearlescent pigment is dispersed therein to a product such as a cosmetic, it is possible to add aesthetics to the product, and excellent aesthetics due to the fluidity of the pearlescent pigment. In addition, it is easy to get tired and can provide a decorative case and a method of manufacturing the same, which can be realized in various colors and gloss depending on the composition of the decorative liquid.

Decorative case according to an embodiment, the lower plate; An upper plate facing the lower plate and at least partially optically transparent; And a pearlescent pigment dispersed in the mineral oil and the mineral oil, which is located in the space between the lower plate and the upper plate.

In one embodiment, the pearlescent pigment is a particle coated with titanium oxide (TiO2) on the surface of a base material composed of natural mica, synthetic mica, glass, or aluminum oxide (Al2O3) (also referred to as alumina). It consists of.

In one embodiment, the pearlescent pigment has a particle diameter of 30 ㎛ to 250 ㎛. In addition, in one embodiment, the pearlescent pigment has a particle diameter of 100 ㎛ to 250 ㎛.

In one embodiment, the decorative liquid further comprises glass beads dispersed in the mineral oil.

In one embodiment, the glass beads have a particle diameter of 100 μm to 200 μm.

In one embodiment, the mineral oil, the pearlescent pigment and the glass beads are mixed in the decorative liquid in a ratio of 6-8: 1: 1-2.

In one embodiment, the decorative liquid further comprises a pigment pigment dispersed in the mineral oil.

In one embodiment, the lower plate further includes a logo region formed on the lower plate to be visible through the upper plate and the decorative liquid.

In one embodiment, the upper plate or the lower plate includes an inlet for injecting the decorative liquid. At this time, the decorative case further includes a stopper to be inserted into the injection port to prevent the leakage of the decorative liquid.

A method of manufacturing a decorative case according to an embodiment includes the steps of injection molding upper and lower plates having shapes facing each other; Fusing one region of the upper plate and the lower plate with each other so that a space is formed between the upper plate and the lower plate; Injecting a decorative liquid containing mineral oil and pearlescent pigment dispersed in the mineral oil into a space between the upper plate and the lower plate through an injection hole formed in the upper plate or the lower plate; And inserting a stopper into the injection port and sealing it.

In one embodiment, the fusion step includes fusion of ultrasonic irradiation sites to each other by irradiating ultrasound to the upper plate and the lower plate.

In one embodiment, the step of fusing one region of the upper plate and the lower plate to each other includes attaching a protective film on the upper plate; Mounting the top plate to the seating jig such that the surface of the top plate to which the protective film is attached contacts the seating jig; And positioning the lower plate on the upper plate mounted on the seating jig.

The method of manufacturing a decorative case according to an embodiment further includes forming a logo area on the lower plate before the fusing step.

The method for manufacturing a decorative case according to an embodiment further includes washing the outer surfaces of the upper plate and the lower plate using ultrasonic waves after the sealing step.

The decorative case according to an aspect of the present invention can be attached to a product such as a cosmetic in a state in which the decorative liquid in which the pearlescent pigment is dispersed is added, thereby adding aesthetics to the product, and the decorative liquid due to the fluidity of the decorative liquid Since pearlescent pigment can move within, it has not only excellent aesthetics, but also has the advantage of not getting tired easily.

In addition, the decorative case according to an aspect of the present invention can be implemented in various colors and gloss by changing the composition of the decorative liquid and the particle size of the pearlescent pigment according to the taste of the consumer, and thus can be commercialized in various forms. There is an advantage.

Furthermore, in the decorative case according to one aspect of the present invention, by adding a glass bead together with a pearlescent pigment in the decorative liquid to increase the fluidity of the pearlescent pigment, the pearlescent pigment is natural in the decorative liquid while being natural to look. It has the advantage of maximizing the visual effect by having active fluidity.

1 is a perspective view of a decorative case according to an embodiment.
2 is a perspective view showing a form in which a decorative case is attached to a cosmetic case according to an embodiment.
3 is a plan view of a decorative case according to an embodiment.
4 is a bottom view of a decorative case according to an embodiment.
5 is a side cross-sectional view of a decorative case according to an embodiment.
6 is a flowchart of a method of manufacturing a decorative case according to an embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In the present specification, when a part is referred to as being “above” another part, it may be immediately above another part or another part may be involved therebetween. In contrast, if one part is referred to as being “just above” another part, no other part is involved in between.

In this specification, terms such as first, second, and third are used to describe various parts, components, regions, layers, and / or sections, but are not limited thereto. These terms are only used to distinguish one part, component, region, layer or section from another part, component, region, layer or section. Accordingly, a first portion, component, region, layer or section described below may be referred to as a second portion, component, region, layer or section without departing from the scope of the present invention.

The terminology used herein is for the purpose of referring only to specific embodiments and is not intended to limit the invention. The singular forms used herein also include plural forms unless the phrases clearly indicate the opposite. As used herein, the meaning of “comprising” embodies a particular property, region, integer, step, action, element, and / or component, and the presence or presence of other properties, regions, integers, steps, action, element, and / or component. It does not exclude addition.

In the present specification, terms indicating relative spaces such as “below”, “above”, etc. may be used to more easily describe the relationship of one part to another part shown in the drawings. These terms are intended to include other meanings or actions of the device in use with the intended meaning in the drawings. For example, if the device in the figure is turned over, some parts described as being "below" other parts are described as being "above" other parts. Thus, the exemplary term “below” includes both the up and down directions. The device can be rotated 90 degrees or rotated at different angles, and terms indicating relative space are also interpreted accordingly.

Although not defined differently, all terms including technical terms and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention pertains. Commonly used dictionary-defined terms are additionally interpreted as having meanings consistent with related technical documents and currently disclosed contents, and are not interpreted as ideal or very formal meanings unless defined.

1 is a perspective view of a decorative case according to an embodiment.

Referring to FIG. 1, the decorative case 1 according to the present embodiment includes a space therein, and the decorative liquid 100 is accommodated in the space. The decorative liquid 100 is for imparting an aesthetic feeling to the product to which the decorative case 1 is to be combined, and includes mineral oil and pearlescent pigment dispersed in the mineral oil. The mineral oil is optically transparent and has a viscosity close to water, and bubbles are not generated inside due to oil characteristics, and thus has properties suitable for manufacturing the decorative liquid 100.

The pearlescent pigment is for the decorative liquid 100 to have a shiny luster, that is, a pearl effect, and is made of a plate-shaped crystal having a square ratio, and is different from the refractive index of the plate-shaped crystal and the refractive index of the medium mineral oil. Gloss is generated through interference of generated reflected light. For example, pearlescent pigments are particles coated with titanium oxide (TiO2) on the surface of a base material composed of natural mica, synthetic mica, glass, or aluminum oxide (Al2O3) (also referred to as alumina). It can be done. Pearl gloss pigments have the advantage of maximizing the gloss effect by using particles of various sizes and colors, which have a large gloss effect compared to a glitter material mainly used for gloss.

In one embodiment, the decorative liquid 100 further comprises color pigments dispersed in mineral oil. Color pigments are nano-sized particles that are dispersed in mineral oil to represent color.

In one embodiment, the decorative liquid 100 further includes a glass bead to make the fluidity of the particles of the pearlescent pigment active. Glass beads have a higher specific gravity than mineral oils, and actively move in the decorative liquid 100 to increase the fluidity of pearlescent pigments.

In one embodiment, the logo area 200 is formed on the lower plate of the decorative case 1. The logo area 200 is a part for displaying a brand name or a product name, etc., which the producer of the product to which the decorative case 1 is attached is intended to be displayed to consumers, and decorates letters or figures displayed on the logo area 200. It is configured to be visible from the top of the decorative case 1 through the liquid 100. The letters or figures displayed on the logo area 200 may be formed on the logo area 200 by printing, painting, attaching, or any other method, and are not limited to a specific method.

The decorative case 1 according to the embodiments is attached to or combined with a product that requires an aesthetic sense, such as a cosmetic case, to provide an aesthetic sense to the product and serve to promote consumers' desire to purchase. In particular, when the decorative case 1 includes the logo area 200, there is an advantage in that the brand name or product name displayed on the logo area 200 can be more beautifully displayed due to the gloss effect of the decorative liquid 100.

2 is a perspective view showing a form in which a decorative case is attached to a cosmetic case according to an embodiment.

Referring to FIG. 2, the decorative (1) case containing the decorative liquid (100) according to embodiments may be attached to the top of the cosmetic cases (2, 3). At this time, the cosmetic case (2, 3) may be made of a container portion (3) in which the cosmetic is accommodated and a cover portion (2) covering the upper portion thereof. The container part 3 may directly accept a liquid cosmetic or a carrier impregnated with a liquid cosmetic, and may contain a solid powder such as a foundation or a solid cosmetic such as a stick. The form in which the cosmetic material is accommodated in the container portion 3, such as may be accommodated, is not limited to a specific method.

The cover part 2 is a part that serves as a lid to prevent the cosmetic material of the container part 3 from leaking, and may be configured to be hinged to one region of the container part 3 and lifted upward. have. In addition, depending on the type of cosmetics, a puff or a tool for applying cosmetic such as a brush or a small mirror may be accommodated in the cover 2. The decorative case 1 according to the embodiments is attached to the upper portion prominent to the consumer in the cover portion 2, and adds aesthetic sense to the product through the pearl luster effect, and in some cases through the logo area 200. It plays a role in engraving the brand name or product name of cosmetics to consumers.

On the other hand, in another embodiment, the cosmetic case is made of only the container part 3 without the cover part 2, and the decorative case 1 is placed directly over the container part 3 so that the decorative case 1 covers the container part 3 ( It is also possible that 1) serves as a lid for the container part 3.

3 is a plan view of a decorative case according to an embodiment, FIG. 4 is a bottom view of the decorative case according to an embodiment, and FIG. 5 is a side cross-sectional view of the decorative case according to an embodiment.

3 to 5, the decorative case according to an embodiment includes an upper plate 10 and a lower plate 20 facing each other. The upper plate 10 and the lower plate 20 have a shape in which a space capable of accommodating the decorative liquid 100 is formed therebetween while facing each other. For example, the lower plate 20 is a flat plate shape having a circular or polygonal cross-section, and the upper plate 10 has the same cross-section as the lower plate 20, but has a central portion that rises upward compared to other parts. There is, when the rim portion of the upper plate 10 is fused to the lower plate 20, it may have a shape in which a space corresponding to the amount of the upper plate 10 rises between the lower plate 20 and the upper plate 10 may be formed.

However, the shapes of the upper plate 10 and the lower plate 20 described through the present specification and the drawings are merely exemplary, and the upper plate 10 and the lower plate 20 have a space in which the decorative liquid 100 can be accommodated. It may have any other shape suitable for being.

In one embodiment, the upper plate 10 and the lower plate 20 are made of a material capable of injection molding. For example, the upper plate 10 and the lower plate 20 may be made of a polycarbonate (PC) material that is easily injection molded, but is not limited thereto.

The lower plate 20 may include a logo area 200 for displaying a brand name or a product name of the product to which the decorative case is to be attached. The brand name or product name displayed on the logo area 200 is seen through the top plate 10 and the decorative liquid 100 when the decorative case is viewed from above. To this end, the top plate 10 is made of at least partially an optically transparent material. Optically transparent herein does not necessarily mean that the light transmittance is 100% or adjacent thereto, and is sufficient as long as it has a transmittance such that the decorative liquid 100 can be seen through the top plate 10. For example, even if the top plate 10 is translucent in a state colored in a predetermined color, it corresponds to the optically transparent state referred to herein.

An injection hole 25 is formed in one region of the lower plate 20. The inlet 25 is a portion for injecting the decorative liquid 100 into the space between the upper plate 10 and the lower plate 20, and after injecting the decorative liquid 100 into the inlet 25, the stopper 30 By sealing the inlet 25 by using the decorative liquid 100 can be manufactured a decorative case accommodated between the upper plate 10 and the lower plate 20. In one embodiment, the stopper 30 is made of urethane. However, in other embodiments, it is also possible that the injection hole of the decorative liquid 100 is formed in a portion of the upper plate 10 rather than the lower plate 20 and the stopper 30 is configured to close the injection hole on the upper plate 10.

6 is a flowchart of a method for manufacturing a decorative case according to an embodiment.

Referring to FIG. 6, first, the upper plate 10 and the lower plate 20 of the decorative case may be injection molded (S1). The upper plate 10 and the lower plate 20 may be made of a PC material, but are not limited thereto. The top plate 10 is made of at least partially optically transparent material so that the decorative liquid can be seen. Meanwhile, the lower plate 20 may be made of an optically transparent material, or a material of an opaque color such as black.

Next, a logo region 200 may be formed on the lower plate 20 by performing a post-processing process on the lower plate 20 (S2). In one embodiment, the post-processing process for the lower plate 20 may include a UV Digital Direct Printing (UV DDP) process. The UV DDP process refers to a process of printing a picture or an image data on the surface of the lower plate 20 using ultraviolet (UV) printing equipment. For example, letters or figures corresponding to the brand name or product name may be printed on the lower panel 20 as the logo area 200 by a post-processing process.

However, this is an example, and in other embodiments, in addition to the printing process, the logo area 200 may be formed by a clear painting process, a hot-stamping process, an inlet attachment process, or other suitable process.

Next, the upper plate 10 and the lower plate 20 may be fused to each other (S3). At this time, the fusion means that a certain portion of the upper plate 10 and the lower plate 20 are fused together so that a space for the decorative liquid is inserted between the upper plate 10 and the lower plate 20, and then bonded to each other. For example, the rims of the upper plate 10 and the lower plate 20 may be fused to each other to form a space in which the decorative liquid is inserted in the inner portion.

In one embodiment, the fusion of the upper plate 10 and the lower plate 20 may be made using an ultrasonic fusion machine. When ultrasonic vibration is applied to one region of the upper plate 10 and the lower plate 20, a fine surface asperity is formed on the welding surface and heat is generated very quickly. As the stress of this surface protrusion is concentrated more than elsewhere, most of the strain and vibration energy are consumed, and heat is transferred to the periphery. Through this, the molten layer is thinly formed on the welding surface and the molten layers of the upper plate 10 and the lower plate 20 can be joined to each other to combine the upper plate 10 and the lower plate 20.

In one embodiment, a protective film (not shown) may be attached to the upper plate 10 before the fusion process of the upper plate 10 and the lower plate 20. In order to perform the ultrasonic welding process, the upper plate is placed on a seating jig (not shown) while being turned upside down, and a lower plate is placed on top of the upper plate. At this time, the protective film is ultrasonically welded onto the surface of the upper plate 10 contacting the jig. It is to protect the top plate 10 to prevent scratches or the like from being generated by the jig during the operation. For example, the protective film may be made of PC or other suitable material. In addition, the thickness of the protective film may be about 0 to 50㎛. However, the material and thickness of the protective film are not limited to the aforementioned values. In addition, in another embodiment, when the ultrasonic welding process is performed while the lower plate 20 is placed against the jig, a protective film may be attached to the surface of the lower plate 20 instead of the upper plate 10.

In one embodiment, the welding process using ultrasonic waves may be performed using an ultrasonic welding machine having an output power of 2000 W to 2500 W. In addition, in one embodiment, the fusion process using ultrasonic waves may be performed using ultrasonic waves having a frequency of 15 kHz to 20 kHz.

In one embodiment, after fusion of the upper plate 10 and the lower plate 20, it may be checked whether the upper plate 10 and the lower plate 20 are fusion-free (S4). This is to prevent the decorative liquid from leaking from the space between the upper plate 10 and the lower plate 20 after injection of the decorative liquid to be described later. For example, after injecting a certain amount of air into the space between the fused upper plate 10 and the lower plate 20, it can be inspected using a leak tester or the like to maintain airtightness without leaking air. Can.

Next, the decorative liquid may be injected into the space between the fused upper plate 10 and the lower plate 20 (S5). The decoration liquid is injected through the injection hole 25 formed in the upper plate 10 or the lower plate 20. The decorative liquid is based on mineral oil and the particles of pearlescent pigment are dispersed therein. Any equipment required for mixing and injecting fluids, such as a dispenser valve controller, a stainless steel (SUS) tank for agitation and pressurization, and a dispenser, may be used for manufacturing and injecting the decorative liquid.

As the particle diameter of the pearlescent pigment increases, the gloss increases while the hiding power is weakened, and therefore, an appropriate particle diameter can be selected in consideration of the visibility of the logo region 200 along with the degree of gloss to be generated. In one embodiment, the particles of pearlescent pigment may have a particle diameter of 9 μm to 250 μm. Also in one embodiment, the particles of pearlescent pigment have a particle diameter of 9 μm to 45 μm. In another embodiment, the particles of pearlescent pigment have a particle diameter of 30 μm to 250 μm. Pearl gloss pigments can be made by mixing particles of various sizes as above.

Particularly, when the particle content of the particle diameter of 100 µm or more is large, it is excellent in the sparkling effect and fluidity according to movement. However, when the particle content of the particle diameter is less than 100 μm, there may be a problem in that the particles adhere to the surface of the upper plate 10 or the lower plate 20 and look like surface stains. Furthermore, when the particle diameter is 250 µm or more, the fluidity decreases, and an atypical form peculiar to pearlescent pigment is seen, and the agglomeration of particles occurs, resulting in poor aesthetics. Therefore, most preferably, the particles of pearlescent pigment have a particle diameter of 100 μm to 250 μm.

In one embodiment, glass beads having a higher specific gravity than mineral oil may be added to the decorative liquid in order to actively move the pearlescent pigment in the mineral oil. When only pearlescent pigment is added in mineral oil, the fluidity is low, but fluidity can be imparted by adding an appropriate amount of glass beads. In addition, the larger the particle diameter of the glass beads, the faster and more vigorous the movement of the glass beads is, but the glass beads are gathered to reduce the aesthetic effect. Therefore, an appropriate particle diameter can be selected in consideration of the degree of gloss to be generated and the like. For example, the glass bead particles may have a particle diameter of 100 μm to 200 μm.

In addition, the ratio of pearlescent pigment to glass beads in the decorative liquid can be appropriately selected in consideration of the gloss effect to be generated. That is, the higher the glass bead, and the larger the particle diameter of the glass ratio, the greater the fluidity. In one embodiment, mineral oil, pearlescent pigment and glass beads may be mixed in a ratio of 6-8: 1: 1-3. For example, mineral oil, pearlescent pigment and glass beads may be mixed in a ratio of 8: 1: 1, 7: 1: 2, or 6: 1: 3, but are not limited thereto. If the proportion of pearlescent pigment is too high, the fluidity decreases and pearlescent pigment may clump together or an irregular shape peculiar to pearlescent pigment may appear, thereby limiting the volume ratio of pearlescent pigment. Even if the proportion of pearlescent pigment is small, the glass beads included with it can actively move the pearlescent pigment and show the effect of spreading evenly, maximizing the aesthetic sense.

Furthermore, it is also possible to diversify the fluidity of pearls by using two sizes of glass beads. Since pearls can move freely in the liquid and reflect the light-receiving area, they can feel the twinkle visually, so two sizes of glass beads are used so that the pearls can move actively. This is because the amount of pearl can be freely adjusted depending on the design concept, but if the pearl moves, the glitter effect can be maximized even with a small amount. For example, the mixing ratio according to the diameter of the glass beads may be 200 μm: 100 μm = 2: 1 or 1: 1. In this case, the glass beads maximize the luster of the pearlescent pigment, but have the advantage of not being easily visible.

Furthermore, when the decorative liquid itself is to have a color, a color pigment may be mixed in a mineral oil as a medium. The color pigment is preferably made of particles having a nanometer (nm) level diameter. For example, a pigment composed of nanometer-level particles may be dissolved in isopropyl alcohol (IPA) and mixed with mineral oil to colorize. The ratio of the mineral oil and the pigment solution may be appropriately selected according to the color to be expressed, for example, the mineral oil and the pigment solution may be mixed in a ratio of 8: 2, but is not limited thereto.

Next, the decorative case 1 in which the decorative liquid 100 is accommodated can be completed by blocking the injection hole 25 using the stopper 30 (S6). Before blocking the inlet 25 with the stopper 30, it is preferable to confirm that there are no bubbles in the decorative liquid 100. Lastly, the decorative case 1 may be shipped as a final product after washing, visually inspecting the presence of internal bubbles, and packing the sealed decorative case 1. At this time, the washing may be performed using an ultrasonic cleaner for easy removal of liquid or pigment on the outer surface during the process, but is not limited thereto.

The decorative case according to the embodiments of the present invention as described above is attached to a product such as a cosmetic in a state in which the decorative liquid in which the pearlescent pigment is dispersed is accommodated therein, thereby adding aesthetics to the product and the fluidity of the decorative liquid Due to this, the pearlescent pigment can move in the decorative liquid, so it is not only excellent in aesthetics but also easy to get tired of.

In addition, the decorative case according to the embodiments can be implemented in various colors and gloss by changing the composition of the decorative liquid and the particle size of the pearlescent pigment according to the taste of the consumer, and has the advantage of being commercialized in various forms. have.

Furthermore, the decorative case according to the embodiments increases the fluidity of the pearlescent pigment by adding glass beads together with the pearlescent pigment in the decorative liquid, so that the pearlescent pigment is natural to look and has a vigorous fluidity in the decorative liquid. It has the advantage of maximizing the phosphorus effect.

The present invention described above has been described with reference to the embodiments shown in the drawings, but this is merely exemplary, and those skilled in the art will understand that various modifications and modifications of the embodiments are possible therefrom. However, it should be considered that such modifications are within the technical protection scope of the present invention. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1: decorative case 100: decorative liquid
200: logo area 2: cover
3: container part 10: top plate
20: bottom 25: inlet
30: stopper

Claims (15)

Bottom plate;
An upper plate facing the lower plate and at least partially optically transparent; And
A decorative case located in a space between the lower plate and the upper plate, and comprising a decorative liquid containing mineral oil and a pearlescent pigment dispersed in the mineral oil. According to claim 1,
The pearlescent pigment is a decorative case made of particles coated with titanium oxide on the surface of a base material made of natural mica, synthetic mica, glass, or aluminum oxide. The method according to claim 1 or 2,
The pearlescent pigment is a decorative case having a particle diameter of 9 ㎛ to 250 ㎛. According to claim 3,
The pearlescent pigment is a decorative case having a particle diameter of 100 ㎛ to 250 ㎛. According to claim 1,
The decorative liquid is a decorative case further comprising glass beads dispersed in the mineral oil. The method of claim 5,
The glass beads are decorative cases having a particle diameter of 100 μm to 200 μm. The method of claim 5,
A decorative case in which the mineral oil, the pearlescent pigment and the glass beads are mixed in a ratio of 6 to 8: 1: 1 to 2 in the decorative liquid. According to claim 1,
The decorative liquid is a decorative case further comprising a pigment pigment dispersed in the mineral oil. According to claim 1,
The lower plate, the decorative case further comprises a logo area formed on the lower plate to be seen through the upper plate and the decorative liquid. According to claim 1,
The upper plate or the lower plate includes an injection port for injecting the decorative liquid,
A decorative case further comprising a stopper to be inserted into the inlet to prevent leakage of the decorative liquid. Injection molding upper and lower plates having shapes that face each other;
Fusing one region of the upper plate and the lower plate with each other so that a space is formed between the upper plate and the lower plate;
Injecting a decorative liquid containing mineral oil and pearlescent pigment dispersed in the mineral oil into a space between the upper plate and the lower plate through an injection hole formed in the upper plate or the lower plate; And
Method of manufacturing a decorative case comprising the step of sealing by inserting a stopper in the inlet. The method of claim 11,
The fusion step is a method of manufacturing a decorative case comprising the step of fusion the ultrasonic irradiation site to each other by irradiating ultrasound to the upper plate and the lower plate. The method of claim 11,
The step of fusing one region of the upper plate and the lower plate to each other is
Attaching a protective film on the top plate;
Mounting the top plate to the seating jig such that the surface of the top plate to which the protective film is attached contacts the seating jig; And
And placing the lower plate on the upper plate mounted on the seating jig. The method of claim 11,
A method of manufacturing a decorative case further comprising forming a logo area on the lower plate before the fusing step. The method of claim 11,
After the sealing step, the method of manufacturing a decorative case further comprising the step of washing the outer surface of the upper plate and the lower plate using ultrasonic waves.

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