KR102544620B1 - Cosmetic puff - Google Patents

Abstract

The present invention provides a cosmetic puff formed of two or more layers, characterized in that it includes a porous structure layer having a water absorbing ability. The puff of the present invention can increase the durability of makeup and provide a feeling of moisture and a cooling effect.

Description

Cosmetic puff {Cosmetic puff}

The present invention relates to a cosmetic puff, which provides an excellent cooling sensation and has improved durability.

A representative example of a cosmetic applicator is a puff. The puff is used to make makeup while applying cosmetics such as powder or cake-like powder or twin cake to the human face. Recently, with the development of technology for commercializing paste or liquid cosmetics in a form that is easy to carry, research on puffs for applying liquid foundation to the skin has been steadily conducted.

When applying color makeup, a puff is mainly used as a cosmetic applicator, and recently, the terms wet puff and dry puff have been commonly used in the beauty industry. A wet puff is a cosmetic puff that is wetted with moisture such as toner and has the advantage of providing a sense of closeness and an immediate cooling sensation. However, when used in a flat puff that can be built into a compact type that is easy to carry (a cosmetic puff for cushion pact), there is a problem that the puff gets wet and wet, and the handle part gets wet, resulting in poor durability.

In addition, when water is applied to the foam applied to the conventional cosmetic puff and used, the surface of the puff becomes rough and the cosmetic effect deteriorates during continuous use.

Therefore, the problem to be solved by the present invention is to provide a new type of cosmetic applicator, in particular, a puff for skin application, which is easy to absorb and discharge contents.

The present invention is also intended to provide a cosmetic puff of a new type with significantly improved durability of the puff when applied to a cosmetic composition having a sense of moisture.

In order to solve the above problems, the present invention provides a new cosmetic puff with improved adhesion and moisture of the cosmetic composition and improved durability of the puff.

According to one embodiment of the present invention, there is provided a multi-layered makeup puff formed of two or more layers, including a porous structure capable of containing moisture (ie, having moisture absorbing ability) as one layer.

An object of the present invention is to provide a new type of cosmetic puff that solves the problems identified by applying water to the outside of the puff and uses it, improves the adhesion of the cosmetic composition, provides a cooling sensation, and can be used conveniently.

The porous structure capable of containing moisture may also be referred to as a water-containing foam, and may be made of the same material as or different from the elastic layer mentioned herein. The porous structure capable of containing moisture may be any material as long as it has the ability to retain moisture therein. For example, natural rubber (NR), polyethylene (PE), ethylene-vinyl acetate butyl rubber (EVA), latex, styrene-isoprene-styrene (SIS), styrene butadiene rubber (SBR), nitro A material selected from the group consisting of butadiene rubber (NBR), nitrile butadiene rubber (BR), non-latex, styrene-ethylene-butylene-styrene (SEBS), polyvinyl alcohol (PVA) and polyurethane It can be used, preferably a hydrophilic polyurethane material can be used. For example, a hydrophilic urethane foam of UltraSORB ^® from Pomtech may be used.

The porous structure having water absorption capacity may have a water absorption amount of 85 or more and 120 or less, preferably 87 or more and 115 or less, more preferably 89 or more and 114 or less according to the following formula 1.

If the amount is less than the above range, it may be difficult to express the skin rich in moisture, which is the purpose of the present invention. If the above range is exceeded, an appropriate balance between absorption and discharge of moisture may be broken, and the amount of moisture released through the porous wet urethane foam layer (preferably the Rubycell puff layer) may increase, which may be undesirable.

The Rubycell puff is a urethane puff made of a dense and soft material, and can be understood as a puff that can minimize the amount of cosmetic material wasted due to the small amount of cosmetic material permeating into the puff. The Rubycell puff is used in the industry for the application of impregnated cosmetics in the industry, and can be understood as a common material among those skilled in the art.

The moisture content is calculated through the following formula 1.

[Calculation 1]

Water absorption amount = (Weight in the state of water absorption - Weight in the dry state) g/ volume of porous structure (cm ³ ) x 100

The weight in the dry state means a state in which there is no artificial contact with water.

In one embodiment of the present invention, the cosmetic puff may have a porous wet urethane foam layer (preferably a ruby cell puff layer) on a surface in close contact with the skin. The porous wet urethane foam layer can control the amount of moisture exuded from the porous structure discharged out of the puff after the porous structure that can contain the moisture absorbs moisture and prevent the cosmetic composition from penetrating into the puff. there is.

The cosmetic puff may further include a film layer, and the film layer may be present in a state of covering one side of the porous structure layer having water absorption capability.

The film layer can prevent moisture discharged from the porous structure having water absorbing ability and/or oil from the cosmetic composition that can be transferred from the wet urethane foam layer from being transferred to the elastic layer.

The film layer may be made of a material selected from water repellent, oil repellent, or mixtures thereof. More specifically, the film layer is any one or more water repellent material selected from the group consisting of silicone resin and fluorine compound resin; Any one or more oil-repellent materials selected from the group consisting of polyurethane, synthetic leather, and rubber (NBR, SBR, etc.); Alternatively, it may be made of a mixture thereof, and preferably, a polyurethane material may be used as the film layer.

The thickness of the film layer is not particularly limited and may be appropriately adjusted as needed.

The elastic layer can prevent direct pressure from being applied to the porous structure having water absorption capacity. The elastic layer is not particularly limited as long as it is a material used for a cosmetic puff. For example, NBR, SBR, NR, polyurethane, SIS, EVA, PVA, SEBS, BR, latex, non-latex, etc. may be used. Preferably, a polyurethane sponge may be used in consideration of adhesion to the film layer, and a polyether-based urethane foam may be used in consideration of durability. The puff made of non-latex material may be understood to mean a puff made of urethane foam made by a dry process in the industry, and is a material applied to a type of puff that expands while meeting water in the industry.

According to one embodiment of the present invention, the cosmetic puff has a multi-layered structure, and covers one surface of the wet urethane foam layer (preferably, the rubycell puff layer) of the first layer in contact with the skin, and the wet urethane foam layer, A hydrophilic porous structure layer of a second layer having absorbency, a film layer of a third layer covering one surface of the hydrophilic porous structure layer, an elastic layer of a fourth layer covering one surface of the film layer, and an outer surface of the elastic layer It may include a fifth layer of skin covering.

The material of the outer skin layer is not particularly limited, and any material may be used as long as it is capable of antifouling function. For example, materials such as synthetic leather, polyurethane, and rubber may be used.

Examples of cosmetic compositions that can be applied to the skin using a puff according to an embodiment of the present invention include liquid foundation, powder pact, balm, stick, and skin cover.

The shape of the cosmetic puff of the present invention is not particularly limited, and may have various shapes depending on the shape or purpose of use of the cosmetic composition container, such as round or oval, for example.

The puff can express a rich sense of moisture and can enhance the adhesion of the cosmetic composition.

The cosmetic puff of the present invention can provide a cooling sensation to the skin when used.

The cosmetic puff of the present invention has excellent durability.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the contents of the above-described invention, so the present invention is limited to those described in the drawings. It should not be construed as limiting.
1 shows an exploded perspective view showing an example of a cosmetic puff. The puff in FIG. 1 has a multi-layered structure in which an elastic layer 20 covers one side of the Rubycell puff layer 30 that comes into contact with the skin while the cosmetic composition is applied, and one side of the elastic layer is covered with the outer skin layer 10. of makeup puffs.
FIG. 2 is a drawing showing a cross section of the cosmetic puff of FIG. 2 .
3 shows an exploded perspective view of a cosmetic puff according to an embodiment of the present invention. The puff of FIG. 3 is provided with a film layer 40 and a hydrophilic porous structure 50 capable of absorbing moisture between the elastic layer 20 and the Rubycell puff layer 30, and the film layer 40 is an elastic layer. (20) and the ruby cell puff layer (30) may exist.
4 is a drawing showing a cross section of the cosmetic puff of FIG. 3 .

Hereinafter, the following examples and the like will be described in order to explain the present invention in more detail. However, embodiments according to the present invention can be modified in many different forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. Embodiments of the present invention are provided by way of example to help a detailed understanding of the present invention.

Example 1. Comparison of water absorption for porous structures

EZ88DH UltraSORB LGWPUF#102 LGWPUF#103 LGWPUF#104 LGWPUF#105 Volume (cm ³ ) 19.89 19.89 19.63 19.63 19.63 19.63 moisture content 16.57 21.00 17.68 19.36 20.31 22.29 Moisture absorption* 83.3 105.6 90.1 98.6 103.5 113.6

*Water absorption = (Weight in wet state - Weight in dry state) g/ Volume of porous structure cm ³ x 100 (factor)

EZ88DH: ether based polyurethane

LGWPUF#102~105: Ether-based polyurethane, produced by changing the number of urethane bonds according to the polyol content

Table 1 shows the results showing the water absorption rate per unit volume of the water-containing impregnated material. The higher the number, the greater the amount of water can be absorbed per volume.

The water absorption amount indicates the maximum amount that a porous structure of the same size can hold moisture.

Example 2. water repellent / oil repellent Effect difference according to the presence or absence of film

3-layer water repellent film has exist doesn't exist has exist doesn't exist 4-layer porous structure normal urethane foam hydrophilic urethane foam (Formtech, EZ88DH) (LGWPUF#105) 5 layer coated surface Porous wet urethane foam (Rubycell) durability
3 days - - - △ 7 days - - - X 14 days - △ - X 21st - X - X

In the durability item of the above table, "-" means no change in the puff, "Δ" means that an abnormality has started to be observed, and "X" means that moisture has been transferred to the artificial leather layer.

A comparative test was performed using the porous structure with the smallest water absorption and the largest porous structure, respectively.

When the liquid cosmetic impregnated in the porous carrier was applied to the skin using each sample, the difference in durability over time was compared. In the case of the 4-layer hydrous porous structure, the problem of dampness of the artificial leather on the first layer occurred after 3 days of use, and it can be seen that the degree worsened on the 7th day.

When used for 3 weeks, when the 3-layer water-repellent film was not included, it was confirmed that the 1-layer artificial leather became damp and the contents rose and became dirty regardless of the type of the 4-layer porous structure.

However, in the case of a puff having a three-layer water repellent film, it was confirmed that the artificial leather layer did not become wet and the durability of the puff was excellent. In particular, the difference in effect according to whether or not the film layer was provided showed a greater difference as the porous structure contained more moisture.

Example 3. Types of water-containing porous structures feeling of use difference comparison

4-layer porous structure EZ88DH UltraSORB LGWPUF#102 LGWPUF#103 LGWPUF#104 LGWPUF#105 3-layer water repellent film apply fit 3.1 4.7 3.3 4.5 4.2 4 cooling sensation 4.1 4.6 4.3 4.3 4.3 4.5 When using continuously
constant makeup effect 2.4 4.5 2.5 4.5 4.4 3.8 average 3.2 4.60 3.37 4.43 4.30 4.10

After using the cosmetic puff for 2 weeks for 20 women in their 20s and 30s, satisfaction was evaluated on a 5-point scale, and the average value was shown.

In order to implement the function of the invention, the cosmetic method proposed by the inventor was used and evaluated.

After spraying toner on the surface of the puff, tap it once or twice on the back of your hand to stabilize it. After that, a cushion pact-type liquid color cosmetic was applied to the skin after taking a puff.

When using a porous structure with high absorbency, moisture is sufficiently wetted in the puff and released slowly, resulting in a high sense of adhesion and cooling, and it can be seen that there is no difference in the makeup effect even when used continuously.

From the above results, it is preferable to use a porous structure having high water holding capacity in order to increase the cooling feeling and durability, but considering the effect on the durability of the puff, and to improve the feeling of use, the film layer on the surface in contact with the water holding porous structure layer was made to provide. In the puff having both the water-containing porous structure layer and the film layer, an excellent cosmetic effect and an effect of improving the durability of the puff could be obtained.

10: outer skin layer
20: elastic layer
30: Ruby Cell puff layer
40: film layer
50: hydrophilic porous structure

Claims (8)

In the cosmetic puff formed of two or more layers,
The cosmetic puff includes a porous structure layer having a water absorption capacity,
The cosmetic puff includes a ruby cell puff layer of a first layer in contact with the skin;
A porous structure layer of a second layer having moisture absorption ability covering one surface of the ruby cell puff layer;
A third film layer covering one surface of the porous structure layer;
a fourth elastic layer covering one surface of the film layer;
A cosmetic puff comprising a fifth outer skin layer covering an outer surface of the elastic layer. The method of claim 1, wherein the water-absorbing porous structure is natural rubber (NR), polyethylene, ethylene-vinyl acetate butyl rubber (EVA), latex, styrene-isoprene-styrene (SIS), styrene butadiene N rubber (SBR), nitro butadiene rubber (NBR), nitrile butadiene rubber (BR), non-latex, styrene-ethylene-butylene-styrene (SEBS), polyvinyl alcohol (PVA) and hydrophilic polyurethane Characterized in that it has at least one material selected from the group consisting of, cosmetic puff. The cosmetic puff according to claim 1, wherein the porous structure having water absorption capacity has a water absorption amount of 85 or more and 120 or less according to the following formula 1.
[Calculation 1]
Water absorption amount = (Weight in the state of water absorption - Weight in the dry state) g/ volume of porous structure (cm ³ ) x 100 delete delete According to claim 1, wherein the material of the film layer is any one or more water repellent material selected from the group consisting of silicone resin and fluorine compound resin;
At least one oil repellent material selected from the group consisting of polyurethane, synthetic leather and rubber; or
A cosmetic puff characterized in that it is a mixture thereof. The method of claim 1, wherein the elastic layer covering one surface of the film layer is at least one selected from the group consisting of NBR, SBR, NR, polyurethane, SIS, EVA, PVA, SEBS, BR, latex, and non-latex. To do, a cosmetic puff. The cosmetic puff according to claim 1, wherein the puff is used to apply one or more cosmetic compositions selected from the group consisting of liquid foundation, powder pact, balm, stick, and skin cover formulation to the skin.

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