KR20190057553A - Stamp Marked Sponge For Impregnating Cosmetics, And Methods Manufacturing The Same And Cosmetics Comprising The Same - Google Patents

Abstract

The present invention relates to a sponge foam having a stamp marking on a surface thereof, and a manufacturing method thereof. For a cosmetic product containing a sponge block impregnating cosmetic materials and a container main body for accommodating the sponge block, the sponge block comprises a first surface accommodated in the container to be exposed and a second surface facing the first surface. A predetermined depressed engraving pattern is formed on the first surface. A transforming unit is integrated with the sponge block and has higher density than sponge density inside the sponge block by a predetermined depth from a surface along the depressed engraving pattern. A non-transforming unit pattern is formed with surfaces other than the depressed engraving pattern and has a density number practically the same as that of the inside of the sponge block. According to the present invention, provided is a sponge for impregnating cosmetic materials which has a marking pattern and minimizes transformation of pore structures of the sponge.

Description

[0001] The present invention relates to a sponge for impregnating a cosmetic material having a stamp marking, a method for producing the same, and a cosmetic product containing the same.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sponge for impregnating a cosmetic, and more particularly, to a sponge foam having stamp marking formed on the surface of the sponge and a method for producing the same.

A cosmetic comprising a sponge-like impregnating member in which a cosmetic composition is embedded in dispersed open pores inside the cosmetic is widely used. Such cosmetic sponge-containing cosmetics can be easily discharged by mechanical pressing, and the discharged cosmetics can be applied to the skin by being buried in a makeup tool such as a puff.

However, since the sponge itself has a flat appearance, it is necessary to make it more cosmetic and there has also been an attempt to insert a predetermined pattern on the surface of the sponge to facilitate the discharge characteristic of the cosmetic. Korean Patent No. 10-1566803, for example, attempts to press the surface of a sponge with a heated mold having a pattern of an obiangle to engrave an opposite pattern on the surface to uniformly discharge the contents.

However, since the mandrel pattern formed by the conventional heating and pressing method is inevitably pressed and squeezed as the sponge on the surface is melted or deformed, it disrupts the open cell or the mesh-like pore structure and the cell structure, .

(1) Korean Patent No. 10-1566803 (2) Korean Patent No. 10-160597

In order to solve the problems of the prior art, it is an object of the present invention to provide a sponge for impregnating a cosmetic having a stamp pattern marking pattern.

It is another object of the present invention to provide a sponge for impregnating a cosmetic, which is easy to discharge cosmetics despite the formation of a surface marking pattern.

It is an object of the present invention to provide a method for producing the aforementioned sponge for impregnating cosmetics.

Another object of the present invention is to provide a cosmetic comprising the aforementioned sponge for impregnating a cosmetic.

According to an aspect of the present invention, there is provided a cosmetic product comprising a sponge block impregnating a cosmetic and a container body containing the sponge block, wherein the sponge block includes: Wherein the first surface is formed with a predetermined engraved pattern and is integrally formed with the sponge block and has a density higher than the sponge density inside the sponge block from the surface to a predetermined depth along the engraved pattern, And a non-deformed portion made of a surface other than the engraved pattern and having a density substantially equal to that of the inside of the sponge block.

The cosmetic product of the present invention may further include a deformation part formed on the second surface of the sponge block and having a density higher than that of the sponge block inside the sponge block.

At this time, the deformation portion formed on the second surface may be formed over the entire second surface, or may be formed on a part of the second surface, and may be formed on the central portion of the second surface. In this case, the deformed portion formed on a part of the second surface may be formed in an engraved pattern.

Further, in the present invention, the sponge block may further include a non-deforming portion which is integral with the sponge block and extends to the side.

According to another aspect of the present invention, there is provided a cosmetic container including a cosmetic container having a first surface exposed and exposed and a second surface opposite to the first surface, wherein a predetermined engraved pattern is formed on the first surface, And a deformed portion having a density higher than that of the sponge block in the sponge block at a predetermined depth from the surface and a non-deformed portion made of a surface other than the depressed pattern and having substantially the same sponge density as the inside of the sponge block. A sponge block for impregnating a cosmetic product is provided.

According to another aspect of the present invention, there is provided a method of manufacturing a sponge, comprising the steps of: providing a stamp having protrusions exposed from a surface of a stamp body on a sponge block; And heating and pressing the exposed stamp projection to form an engraved pattern corresponding to the stamp projection on the first face of the sponge block, wherein in the engraved pattern forming step, the engraved pattern of the first face of the sponge block And the portion other than the pattern forming portion is in a non-contact state with the stamp.

At this time, the manufacturing method of the present invention may further include forming the deformed portion by heating the sponge block on the second surface which is the opposite surface of the first surface of the sponge block.

According to the present invention, it is possible to provide a sponge for impregnating cosmetics that minimizes the deformation of the pore structure of the sponge while having a marking pattern.

Further, according to the present invention, it is possible to provide a sponge for impregnating a cosmetic having a marking pattern structure that facilitates the discharge of cosmetic material.

1 is a view schematically showing a cosmetic product according to the present invention.
2 is a cross-sectional view illustrating a sponge block for impregnating a cosmetic according to an embodiment of the present invention.
3 (a) to 3 (c) are schematic diagrams showing a process of manufacturing a sponge block for impregnating a cosmetic according to an embodiment of the present invention.
4 (a) and 4 (b) are optical micrographs and electron micrographs of the surface microstructure of the polyurethane foam before the stamping, respectively.
5 is an optical microscope photograph of a surface microstructure after stamp stamping according to an embodiment of the present invention.
6 is a cross-sectional view illustrating a sponge block for impregnating cosmetics according to another embodiment of the present invention.
FIG. 7 is a schematic view showing a process of manufacturing a sponge block for impregnating a cosmetic according to another embodiment of the present invention.
8 is a view exemplarily showing a cross-sectional shape of a sponge block for impregnating a cosmetic according to a modification of the present invention.
9 is a view exemplarily showing a cross-sectional shape of a sponge block for impregnating a cosmetic according to another modification of the present invention.
FIG. 10 is a view exemplarily showing a cross-sectional shape of a sponge block for impregnating a cosmetic according to another modification of the present invention.
FIG. 11 is a photograph showing the state of discharging the composition of the sponge block manufactured according to an embodiment of the present invention. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the drawings.

1 is a view schematically showing a cosmetic product according to the present invention.

As shown, the cosmetic comprises a container body 11 for accommodating a liquid cosmetic composition. The container body 11 is accommodated with a sponge block 10 for impregnating cosmetics impregnating liquid cosmetics. The cosmetic includes an inner lid 13 and an outer lid 15 for preventing leakage of the liquid cosmetic composition from the sponge block 10 for impregnation. However, the present invention is also applicable to cosmetics comprising a body for housing a lid and a sponge for impregnating a cosmetic.

In the present invention, the cosmetic composition may be an O / W (oil-in-water) cosmetic composition or a W / O (water-in-oil) cosmetic composition, and a foundation, ultraviolet screening agent and the like may be used.

The cosmetic material to be impregnated into the impregnating member 40 may be a gel-like foundation containing an ultraviolet screening agent.

In the present invention, the sponge block 10 for impregnation may be formed of foamed synthetic resin. The foam pores in the sponge block 10 are connected to each other to form an open channel. The pore structure of the sponge block 10 may be an open-cell foam or a reticulated foam structure. Here, the mesh-like foam refers to a foam in which the sponge has a mesh structure and a cell wall is opened. Illustratively, in the present invention, the number of pores per inch (ppi) of the sponge 10 may be 30 to 200 or 70 to 200. [

As the material of the sponge block 10, various synthetic resins may be used. Examples of the sponge block 10 include polyether, polyester, polyurethane, polyvinyl alcohol (PVA), polyethylene (PE), ethylene vinyl acetate (EVA) butadiene styrene) or synthetic rubber may be used.

Illustratively, the polyurethane may be a polyurethane prepared from a polyether polyol, a polyester polyol, a mixture thereof, or a copolymer thereof, and the synthetic rubber may include styrene-butadiene rubber (SBR) At least one rubber selected from the group consisting of butadiene rubber (BR), natural rubber (NR) and acrylonitrile-butadiene rubber (NBR) can be used.

2 is a cross-sectional view illustrating a sponge block for impregnating a cosmetic according to an embodiment of the present invention.

Referring to FIG. 2, the sponge block 100 has an engraved pattern 120 formed on one surface, for example, an upper surface thereof. The engraved pattern 120 has a predetermined width A in cross section. In the embodiment of the present invention, the upper surface of the sponge block corresponds to a surface exposed to the outside when the sponge block is accommodated in the cosmetic container body 11 in Fig.

The sponge block 100 is integrally formed with the sponge block 100 and includes a deformation portion 122 having a predetermined depth from the surface along the engraved pattern 120. The deformed portion 122 has a pore structure different from the non-deformed portion 124 of the sponge block surface. The pores of the deformed portion 122 may have a pore structure that changes as the surface is deeper. For example, the pore structure of the deformation portion 122 may have a very small pore size at the surface, gradually increase in the inside of the bulk, and may have the same pore size as the inside of the bulk at a predetermined depth or more. In the present invention, the depth of the deformation portion 122 may be, for example, about 0.5 mm or more.

In the present invention, the deformed portion 122 has a smaller average pore size than the unmodified portion 124. The sponge density at the surface of the deformed portion 122 may be 2 to 4 times the sponge density of the unmodified portion. For the same reason, the cell density of the deformed portion at the surface can have a higher cell density than the unmodified portion. As will be described later, the hot pressing by the stamp selectively melts or deforms the sponge of the engraved pattern deforming portion, compresses the original open cell or the mesh-like pore structure, disrupts the cell structure, and has a high sponge density . While the unmodified portion 124 has a sponge density and number of pores substantially equal to the interior 110 of the sponge block.

In the present invention, it is preferable that the area occupied by the engraved pattern including the deformed portion in a plane view from one surface (for example, the upper surface) of the sponge block is smaller than the area occupied by the unmodified portion. Fig. 4 shows an example in two dimensions in which the width A of the deformation portion is smaller than the width B of the non-deformation portion. It is preferable that the area on the plane occupied by the deformed portion on one surface of the sponge block 100 is smaller than 1/2 of the area on the plane occupied by the deformed portion. In one embodiment, the area on the plane of the deformed portion may be less than one fourth of the area on the plane of the unmodified portion. In the present invention, the size of the deformed portion and the size of the non-deformed portion can be designed in consideration of easiness of discharging the impregnated cosmetic.

When the upper surface of the sponge block 100 of FIG. 2 is pressed by a tool such as a puff, the deformed portion 122 of the sponge is formed of small-sized pores, so that the cosmetic material is not smoothly discharged. However, since the non-deformed portion of the sponge composed of pores having a large size can still discharge the normal cosmetic material, the release of the cosmetic material is not hindered despite the formation of the engraved pattern.

3 (a) to 3 (c) are schematic diagrams showing a process of manufacturing a sponge block for impregnating a cosmetic according to an embodiment of the present invention.

Referring to FIG. 3 (a), the mold 230 is provided with a stamp 220 movable upward and downward. The stamp 220 has a stamp body 222 and a stamp protrusion 228 protruding from the body surface opposite the sponge block 100. In addition, a suitable guider 228 may be provided to enable the stamp 220 to move within the mold 230. A sponge block 100 is mounted on the lower end of the mold 230. In the present invention, the stamp body 222 may be provided with an appropriate heater. The heater heats the stamp body 222 and the stamp protrusion 224 on the surface of the stamp body.

FIG. 3 (b) shows a state in which the stamp 220 moves downward to press the sponge block. At this time, the stamp protrusion 224 penetrates into the sponge block, and melts and presses the sponge block on the surface. As shown in the figure, the stamp 220 is guided so that the surface of the stamp body 222 and the sponge block are separated from each other by a predetermined distance d. As a result, a part of the upper surface of the sponge block is kept in a non-contact state with the stamp and is not pressed by the stamp or the stamp projection, and unintentional deformation of the sponge can be suppressed in this area. Preferably, the minimum value of the interval d can be any size that can be viewed in a non-contact state and can be, for example, a value of about 1 mm or more. Fig. 3 (c) shows the state of the sponge block after stamp stamping is finished.

4 (a) and 4 (b) are optical microscope photographs and electron micrographs of the surface microstructure of the polyurethane foam before stamping, respectively, and FIG. 5 is a photograph of the surface microstructure of the polyurethane foam after the stamping It is an optical microscope photograph. 4 and 5 show the difference in the pore structure of the deformed part a and the unmodified part b in that the unmodified part b has a cell density about 4 times larger than the deformed part a .

6 is a cross-sectional view illustrating a sponge block for impregnating cosmetics according to another embodiment of the present invention.

2, an engraved pattern 120 is formed on an upper surface of the sponge block 100. As shown in FIG. On the lower surface of the sponge block, on the other hand, a lower surface deforming portion 130A extending over the entire lower surface is provided. The sponge block of the deformed portion 130A is composed of pores having a size smaller than that of the inside of the bulk, and has a high sponge density. Accordingly, when the top surface is pressed by a tool such as puff, the cosmetic material in the sponge block is difficult to be discharged downward of the sponge block, and is discharged upward. Such a structure can smoothly discharge the cosmetic material.

FIG. 7 is a schematic view showing the manufacturing process of the sponge block for impregnating cosmetics of FIG. 6 in sequence.

3, a stamp 220 is provided in the mold 230 so as to be movable up and down. The stamp 220 includes a stamp main body 222 and a sponge- And a stamp protrusion 228 projected opposite to the stamp protrusion 228.

On the other hand, unlike FIG. 3, the apparatus shown in FIG. 7 includes a lower mold 240 for forming a bottom deformed portion. The lower mold has a heater 242 inside. As a result, pressure is applied to the lower surface of the stamp in accordance with the pressing of the stamp, and the lower surface deformed portion can be formed by heating the lower mold.

7A to 7C illustrate an example in which a lower surface depression is formed on the lower surface of the sponge block 10 at the same time as stamping of the engraved pattern 120 is formed on the upper surface of the sponge block 10. However, The deforming portion 240 and the upper surface engraved pattern 120 may be formed by a separate process from a separate device.

8 is a view exemplarily showing a cross-sectional shape of a sponge block for impregnating a cosmetic according to a modification of the present invention.

Unlike FIG. 6, in the sponge block of FIG. 8, the lower surface deforming portion 130B is formed not over the entire lower surface but over a part. Preferably, the lower surface deforming portion 130B is formed at the center of the lower surface of the sponge block. This structure facilitates impregnation of the cosmetic material discharged to the side of the sponge block when the puff is pressed back into the sponge block when releasing pressure.

9 is a view exemplarily showing a cross-sectional shape of a sponge block for impregnating a cosmetic according to another modification of the present invention.

The sponge block of Fig. 9 includes a lower surface deformation portion 130C and a side deformation portion 140. Fig. Such a deformation arrangement can induce the impregnated cosmetic material to be mainly discharged upward when the puff is pressed.

FIG. 10 is a view exemplarily showing a cross-sectional shape of a sponge block for impregnating a cosmetic according to another modification of the present invention.

Referring to FIG. 10, a lower surface modification portion 130D is formed on the lower surface of the sponge block by a depressed pattern. The remaining portion of the lower surface excluding the engraved pattern is constituted by a non-deformed portion. This structure facilitates the discharge of the cosmetic material above the sponge block when the puff is pressurized, as in the case of FIG. 8, and facilitates the re-impregnation of the liquid cosmetic material discharged to the side surface.

<Test Example>

A polyurethane foam having a thickness of 10 mm was placed on the lower heater surface of the press and pressed from above to form a deformed portion at the bottom of the foam. At this time, the temperature of the heater surface was maintained at 150 to 250 ° C, and the pressing time was 30 seconds to 1 minute. A sample having a thickness as shown in Table 1 below was prepared by varying the displacements of the press to be pressed downward.

division After pressurization
Sample thickness Sample 1 8 mm Sample 2 6.5 mm

The modified samples 1 and 2 were placed so as to touch the glass plate and impregnated with the same composition and amount of the cosmetic composition. Then, each sample was pressed with the same pressure puff to observe the content of the composition discharged from the foam and remaining on the glass plate Respectively. A sample (Ref) in a non-pressurized state was tested together for comparison.

FIG. 11 (a) is a photograph of a state in which a sample impregnated with a cosmetic composition is placed on a glass plate, FIG. 11 (b) is a photograph showing the state of release of the composition on a glass plate after pressing with a puff and removing a sample.

It can be seen from Fig. 11 that the modified samples 1 and 2 by pressurization show that the amount of the composition discharged is significantly reduced as compared with the reference sample Ref, and that in the case of the sample 2 having a severe degree of deformation, the composition is hardly discharged.

Although the present invention has been described in detail with reference to the exemplary embodiments of the present invention, it is to be understood that the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10 sponge blocks
11 container body
13 My lid
15 outer lid
100 sponge block
110 Inside Sponge Block
120 engraved pattern
122 deformation part
124 non-deformed part
130A, 130B, 130C and 130D,

Claims (14)

A cosmetic comprising a sponge block impregnating a cosmetic and a container body containing the sponge block,
Wherein the sponge block includes a first surface that is received and exposed in the container and a second surface that is opposite to the first surface,
A predetermined engraved pattern is formed on the first surface,
A deformed portion integral with the sponge block and having a sponge density higher than the sponge density of the sponge block at a predetermined depth from the surface along the depressed pattern and a surface other than the depressed pattern, And a non-deformed portion having the same sponge density. The method according to claim 1,
Further comprising a deformation portion formed on the second surface of the sponge block and having a density greater than a sponge density within the sponge block. 3. The method of claim 2,
And wherein the deformed portion formed on the second surface spans the entire second surface. 3. The method of claim 2,
And a deformed portion formed on the second surface is formed on a part of the second surface. 5. The method of claim 4,
And the deformed portion formed on the second surface is formed at a central portion of the second surface. 5. The method of claim 4,
And a deformed portion formed on a part of the second surface is formed in an engraved pattern. 7. The method according to any one of claims 1 to 6,
Wherein the deformed portion is at least twice the sponge density inside the sponge block. The method according to any one of claims 1 to 6,
Wherein the deformed portion is at least four times the sponge density inside the sponge block. 3. The method according to claim 1 or 2,
Wherein the sponge block has a pore per inch (ppi) of 30 to 200. 3. The method according to claim 1 or 2,
Wherein the sponge block further comprises a non-deforming portion integral with the sponge block and extending laterally. A cosmetic container having a first surface exposed and exposed and a second surface opposite thereto,
A predetermined engraved pattern is formed on the first surface,
A deformation portion having a density higher than the sponge density in the sponge block at a predetermined depth from the surface along the engraved pattern and a non-deformed portion having a sponge density substantially equal to the inside of the sponge block, Wherein the sponge block is made of a thermoplastic resin. 12. The method of claim 11,
Further comprising a deformation portion formed on the second surface of the sponge block and having a density higher than that of the sponge block inside the sponge block. Providing a stamp on the sponge block having protrusions exposed from the stamp body surface; And
And heating and pressing the exposed stamp projection to form an engraved pattern corresponding to the stamp projection on the first surface of the sponge block,
Wherein a portion of the first surface of the sponge block other than the engraved pattern forming portion is in a non-contact state with the stamp in the engraved pattern forming step. 14. The method of claim 13,
And heating the sponge block to form a deformed portion on a second surface of the sponge block opposite to the first surface thereof. &Lt; RTI ID = 0.0 &gt; 11. &lt; / RTI &gt;

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