JP5255874B2 - Cosmetic container and manufacturing method thereof - Google Patents

Description

  The present invention relates to a compact cosmetic container and a method for producing the same.

  Conventionally, in various cosmetic containers such as refill containers that contain solid cosmetics such as foundations, if they are dropped on the floor or the like, the solid cosmetics in the cosmetic container are cracked by the impact at the time of dropping. Many cushioning materials are provided between the container body of the cosmetic container and the inner plate that contains the solid cosmetic material, and this shock absorbing material reduces the impact when dropped. ing.

As such a cosmetic container, a cosmetic container shown in FIG. 5 has been proposed (see, for example, Patent Document 1). This cosmetic container includes a container main body 31 in which an inner dish accommodating recess 31 a is formed, a lid 32, and an inner dish 33 filled with a solid cosmetic 34, and the outer surface of the inner dish 33 is UV-cured. An elastic layer 35 obtained by curing a mold adhesive by ultraviolet irradiation is provided, and the inner tray 33 is elastically supported through the elastic layer 35. Further, when producing the elastic layer 35, a liquid ultraviolet curable adhesive is dropped on the outer surface of the inner dish 33, irradiated with ultraviolet rays with a mercury lamp or the like, and then cured by moisture in the atmosphere.
Japanese Patent Application No. 2007-212468

  However, in the cosmetic container described above, since the ultraviolet curable adhesive dripped onto the outer surface of the inner dish 33 is cured by moisture in the atmosphere after being irradiated with ultraviolet rays, it takes about one day for curing, and improvement in productivity is a problem. Has been. Further, since the ultraviolet curable adhesive is dropped and applied to the outer surface of the inner tray 33, there is a problem that it is difficult to make the elastic layer 35 uniform with high accuracy. Furthermore, since the ultraviolet irradiation apparatus provided with a mercury lamp etc. is used in the said production, manufacturing cost becomes high and the burden reduction is desired.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a cosmetic container having a buffer material layer having a uniform thickness and a low production cost, excellent productivity, and a method for producing the same.

In order to achieve the above object, the present invention provides an intermediate dish filled with cosmetics, a container main body in which an intermediate dish accommodating recess is formed for accommodating the intermediate dish, and a lid that covers the container main body. And at least one of the inner surface of the inner dish receiving recess of the container body and the outer surface of the inner dish, one of polyurethane, polybutadiene, polyisoprene, styrene-butadiene rubber, and styrene-isoprene-butadiene. A cosmetic container in which a coating film having a uniform thickness made of a two-component curable soft elastomer is provided as a buffer material layer, and an inner dish is elastically supported by the buffer material layer, is a first gist, and A method of manufacturing a cosmetic container, comprising: a middle dish for filling cosmetics; a container body formed with a middle dish housing recess for housing the middle dish; and a lid for covering the container body With the lid A preparation step of Bei, on at least one of the inner surface and the inner plate the outer surface of the inner tray housing recess of the container body, polyurethane, polybutadiene, polyisoprene, styrene - butadiene rubber, styrene - isoprene - either butadiene A coating process in which a mixed liquid in which a main component for forming a two-component curable soft elastomer and a curing agent are mixed is applied in a uniform thickness, and after this coating process, the applied mixed liquid is cured to a uniform thickness. A buffer material layer forming step using the coating material layer as a buffer material layer, and after the buffer material layer forming step, the intermediate plate filled with cosmetics is stored in the intermediate plate storage recess and the buffer material A second gist is a method for producing a cosmetic container, which includes a housing step of elastically receiving by a layer and a lid closing step of covering the container body with a lid.

That is, the cosmetic container of the present invention uses a specific two-component curable soft elastomer as a cushioning material layer that elastically supports the inner dish. This two-component curable soft elastomer is obtained by mixing and curing the main agent and the curing agent. The part that has been in contact with (or bonded to) other material before curing is harder than the other after curing. However, there is a physical property that there is no adhesive force in a portion that is not in contact with another object before curing. Accordingly, when the buffer material layer made of the two-component curable soft elastomer is provided as a coating film having a uniform thickness on at least one of the inner surface of the container tray receiving recess and the outer surface of the container plate, the two-component curable type Since the soft elastomer adheres firmly to the part that is in contact with it in advance and exhibits flexibility and elasticity in the other part, it has an excellent buffering effect.

  Moreover, according to the manufacturing method of the cosmetic container of this invention, the hardening time of the liquid mixture used in order to form a two-component curable soft elastomer is quick (complete hardening is 8 to 12 hours. 40-50 on a production process). Therefore, the buffer material layer can be formed in a short time, and the productivity is high. Furthermore, a buffer material layer having a uniform thickness can be obtained by spray-coating a mixed liquid obtained by mixing the main agent and the curing agent, or applying the mixture by a printing method or the like. In addition, it is not necessary to use an ultraviolet irradiation device equipped with a mercury lamp or the like when producing the buffer material layer.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to this embodiment.

  FIG. 1 shows an embodiment of a cosmetic container according to the present invention. In the figure, reference numeral 1 denotes a container body having an upper dish receiving recess 1a formed on the upper surface, and 2 denotes a lid body that covers the upper surface of the container body 1 so that the upper surface of the container body 1 can be freely opened and closed. The rear end portion 2a is rotatably connected by a connecting pin 3. Reference numeral 6 denotes a mirror fixed to the back surface of the lid 2.

  Reference numeral 4 denotes an intermediate dish accommodated in the intermediate dish accommodating recess 1a, and the cosmetic 5 is filled therein. As shown in FIG. 2, a buffer material layer 11 made of a two-component curable soft elastomer connected in an annular shape is formed on the inner plate 4 on the entire outer peripheral surface thereof.

  Reference numeral 12 denotes an adhesive layer made of a hot-melt adhesive provided at the center of the bottom surface of the above-described intermediate dish accommodating recess 1a. The intermediate dish 4 is detachably bonded to the upper surface of the adhesive layer 12. Then, when removing the intermediate dish 4, a rod-like body (not shown) is inserted into the through hole 13 formed in the bottom wall of the intermediate dish accommodating recess 1 a and the bottom surface of the intermediate dish 4 is pushed up. The inner tray 4 can be removed. Reference numeral 14 denotes a notch formed at the front end of the container body 1, and protrudes from the front end of the lid 2 on the engaging projection 14 a projecting from the inner surface of the notch 14. The engaged claws 2b are detachably engaged (see FIG. 1).

  According to said structure, the inner tray 4 is elastically supported by the buffer material layer 11 formed in the outer peripheral surface. Therefore, this shock can be sufficiently absorbed by the cushioning material layer 11 when an external force acts on the inner tray 4 in the lateral direction due to the impact when the cosmetic container is dropped. The buffer material layer 11 is formed to have a uniform thickness in any part of the buffer material layer 11 due to the manufacturing characteristics described below. Therefore, there is no unevenness in the buffering effect, and an excellent buffering effect can be achieved regardless of the lateral direction of impact.

  The cosmetic container can be manufactured, for example, as follows. That is, first, the container body 1, the lid body 2, and the inner dish 4 filled with the cosmetic 5 are prepared, and the container body 1 and the lid body 2 are connected. The intermediate dish 4 is not yet accommodated in the intermediate dish accommodating recess 1a (intermediate product). In addition, a first container in which the main agent, which is a material for forming the two-component curable soft elastomer, is stored, a second container in which the curing agent is also stored, and a spray can are prepared.

  Then, the main agent and the curing agent are mixed in the spray can, and this mixed solution is sprayed from the spray can before the curing and sprayed on the entire outer peripheral surface of the inner tray 4 with a uniform thickness. A film is formed (application process). Next, the buffer material layer 11 is formed by allowing it to stand for a predetermined time and curing the coating film (buffer material layer forming step). On the other hand, a hot melt adhesive is applied and heated in the middle dish receiving recess 1a of the container body 1 in the opened state, and the intermediate dish 4 and its buffer material layer 11 are placed in the middle dish receiving recess 1a. It accommodates so that it may contact | abut to an internal peripheral surface (accommodation process). And the target cosmetics container can be obtained by closing the upper surface opening of the container main body 1 with the cover body 2 (lid closing process).

  In addition, after performing an application | coating process, an elastic layer formation process, and an accommodation process in the state which does not attach the cover body 2 to the said container main body 1, a cover body 2 is connected to the said container main body 1 in a cover closing process, and a cover is closed. May be.

  Further, in this embodiment, the cosmetic 5 is filled in the middle dish 4 in advance, but the cosmetic 5 may be filled after the empty middle dish 4 is accommodated in the middle dish accommodating recess 1a.

The two-component curing type soft elastomer used in the above process, polyurethane, polybutadiene, polyisoprene, styrene - butadiene rubber, styrene - isoprene - either two-component curable soft elastomeric butadiene rubber and the like . For example, when the polyurethane rubber elastomer is used, the main agent is usually an isocyanate prepolymer and the curing agent is a polyol. Among these two-component curable soft elastomers, in particular, a flexible one having physical properties close to that of a gel material is preferable. Examples of such two-component curable soft elastomer include non-brene coat (polyurethane near gel material elastomer) manufactured by Hirakata Giken Co., Ltd., JELCON-SRV manufactured by Jujo Chemical Co., Urepack manufactured by Shiroyamado Co., Ltd., and the like.

  These two-component curable soft elastomers are characterized by a relatively short curing time after mixing the two components. Incidentally, the curing time of the non-brene coat (manufactured by Hirakata Giken Co., Ltd.) is 8 to 12 hours at room temperature.

  Further, the thickness, hardness, etc. of the buffer material layer 11 are appropriately set depending on the size of the container body 1, the middle dish 4, the thickness of the bottom wall, the material of the cosmetic 5 filled in the middle dish 4, etc. The hardness (JIS-A hardness) is preferably set to 50 or less.

  According to the above manufacturing method, since the two-component curable soft elastomer is used as the material for forming the buffer material layer 11, the buffer material layer 11 can be formed in a shorter time than a conventional ultraviolet curable adhesive. And high productivity. Moreover, since the mixed liquid in which the main agent and the curing agent are mixed is applied by spraying, the mixed liquid can be applied thinly and uniformly on the entire outer peripheral surface of the inner dish 4, and the buffer material having a uniform thickness. Layer 11 can be formed. Further, when the buffer material layer 11 is manufactured, it is not necessary to use an expensive ultraviolet irradiation device, and the buffer material layer 11 can be manufactured at low cost.

  In the above production method, when the buffer material layer 11 is produced, a mixed liquid in which the main agent and the curing agent are mixed is put in a spray can and spray-coated. You may use the spray gun etc. which can be introduced and can be injected from this nozzle. The application method is not limited to spraying, and printing may be performed by a printing method such as screen printing, or coating may be performed by a roll coater. Alternatively, it may be dropped.

  Moreover, you may form the said buffer material layer 11 not only in the outer peripheral surface of the inner tray 4, but in both the outer peripheral surface and bottom face of the inner tray 4, as shown in FIG. In this case, it is desirable that the hole 11a is formed in the central portion of the buffer material layer 11 formed on the bottom surface, and the adhesive layer 12 (see FIG. 1) is formed inside thereof. Other parts are the same as those in the above embodiment, and the same reference numerals are given to the same parts. This embodiment also has the same operations and effects as the above embodiment. Moreover, according to this configuration, an excellent buffering effect is exerted not only on the lateral direction to the inner tray 4 but also on the external force in the vertical direction during the fall.

  Furthermore, instead of forming the buffer material layer 11 on the outer peripheral surface or the bottom surface of the middle dish 4, the buffer material layer 11 may be formed on the middle dish housing recess 1 a side of the container body 1. That is, as shown in FIG. 4, the buffer material layer 11 connected in a ring shape can be formed on the entire inner peripheral surface of the above-described dish receiving recess 1 a. Other parts are the same as those in the embodiment shown in FIGS. 1 and 2, and the same reference numerals are given to the same parts. This embodiment also has the same operation and effect as the embodiment shown in FIGS.

  In addition, the said buffer material layer 11 may be formed in at least one part of the outer surface (outer peripheral surface and bottom face) of the said inner tray 4, and similarly, on the inner surface (inner peripheral surface and bottom face) of the said container main body 1. You may form in at least one part. Moreover, you may form in both the inner surface of the said container main body 1, and the outer surface of the inner tray 4. FIG.

  Moreover, in the said embodiment, although the adhesive bond layer 12 is provided in the center part of the bottom face of the said inside tray accommodating recessed part 1a, the place which provides this adhesive bond layer 12 is not specifically limited. Moreover, the kind of adhesive which comprises the said adhesive bond layer 12 is not specifically limited, either.

It is sectional drawing which shows one Embodiment of the cosmetics container of this invention. It is a perspective view of the saucer used for the above-mentioned embodiment. It is explanatory drawing of the buffer material layer in other embodiment of the cosmetics container of this invention. It is explanatory drawing of the buffer material layer in other embodiment of the cosmetics container of this invention. It is sectional drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container body 1a Middle dish accommodation recessed part 2 Cover body 4 Middle dish 5 Cosmetics 11 Buffer material layer

Claims (2)

An intermediate dish containing recess filled with cosmetics, a container main body formed with an intermediate dish accommodating recess for accommodating the intermediate dish, and a lid for covering the container main body, the intermediate dish accommodating recess of the container main body A uniform thickness of a two-component curable soft elastomer of polyurethane, polybutadiene, polyisoprene, styrene-butadiene rubber, or styrene-isoprene-butadiene is formed on at least one of the inner surface and the outer surface of the inner dish . coating is provided as a buffer layer, cosmetic container, characterized in that the inner plate is resiliently支受by this buffer material layer. It is a method of manufacturing the cosmetic container according to claim 1, wherein the inner tray for filling the cosmetic, the container main body in which the inner tray accommodating recess for receiving the inner dish, and the container main body are formed. A preparation step for preparing a lid for covering, and at least one of the inner surface of the container receiving recess and the outer surface of the intermediate plate on the container body, polyurethane-based, polybutadiene-based, polyisoprene-based, styrene-butadiene rubber-based, A coating process in which a mixed liquid obtained by mixing a main component and a curing agent for forming a two-component curable soft elastomer of any one of styrene-isoprene-butadiene is applied with a uniform thickness, and the coating was applied after this coating process. The mixed solution is cured to form a coating film having a uniform thickness, and the buffer material layer forming step using this as a buffer material layer. After the buffer material layer forming step, the medium dish filled with cosmetics is In the dish receiving recess Contents were cosmetic container manufacturing method which is characterized in that it comprises a housing step of resiliently 支受, the closure step of the lid the container body with the cover member by the buffer material layer.

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