COSMETIC COMPOSITION CARRIER COMPRISING URETHANE FOAM
The present disclosure relates to a carrier for a cosmetic composition
comprising a urethane foam.
Background Art
10 Although a cosmetic composition was mainly used indoors in the past, it is
frequently used outdoors with the change in lifestyles, comprising increased leisure
activities. Accordingly, the need of a cosmetic composition which is convenient in
use and carrying is increasing.
Although a cosmetic which is convenient to use and carry was developed by
15 impregnating a cosmetic composition in a urethane foam, the urethane foam
commonly used as a carrier for a cosmetic composition is applicable only to
emulsion-type cosmetic compositions having viscosity of about 5,000-15,000 cps.
With the recent trend toward naturally-looking makeup, there is a high preference for
low-viscosity cosmetic compositions that allow lightly-looking makeup. There is
20 also a consistent demand on a high-viscosity cosmetic composition capable of
providing superior covering and moisturizing effect. Accordingly, there is a need for
a carrier for a cosmetic composition that can stably hold low-viscosity and highviscosity
cosmetic compositions and allows convenient use and carry of cosmetics.
2
【Disclosure】
【Technical Problem】
The present disclosure is directed to providing a carrier for a cosmetic
composition capable of easily impregnating cosmetic compositions of various
vi5 scosities.
The present disclosure is also directed to providing a cosmetic comprising
the carrier for a cosmetic composition, which is convenient to use and carry.
【Technical Solution】
10 In one general aspect, the present disclosure provides a carrier for a
cosmetic composition comprising a urethane foam having a hardness of 1-100 when
measured with an Asker hardness tester type F before impregnation, wherein the
cosmetic composition has a viscosity of 1,000-5,000 centipoise (cps) or 15,000-
60,000 cps.
15 In another general aspect, the present disclosure provides a cosmetic
comprising the carrier for a cosmetic composition which comprises a cosmetic
composition.
【Advantageous Effects】
20 Since a carrier for a cosmetic composition according to the present
disclosure, which comprises a urethane foam whose hardness and number of pores
per inch are controlled according to the viscosity of the cosmetic composition, is
capable of impregnating cosmetic compositions of various viscosities comprising
low-viscosity and high-viscosity cosmetic compositions, which are generally known
3
to be difficult to be impregnated in a urethane foam, it can provide improved stability,
feeling of use and portability of cosmetics. Accordingly, cosmetics satisfying various
needs of users can be provided.
【Best Mode5 】
As used herein, a "carrier" refers to a material capable of impregnating any
substance or component which may be a composition. It can also be expressed as
a "medium". As used herein, "impregnating ability" refers to the ability to
impregnate and hold any substance or component.
10 As used herein, a "urethane foam" refers to polyurethane which has been
foamed and then solidified and may also be referred to as a "foamed urethane".
In an aspect, the present disclosure provides a carrier for a cosmetic
composition comprising a urethane foam having a hardness of 1-100 when
measured with an Asker hardness tester type F before impregnation, wherein the
15 cosmetic composition has a viscosity of 1,000-5,000 centipoise (cps) or 15,000-
60,000 cps. The carrier for a cosmetic composition, which comprises a urethane
foam with one or more of hardness and number of pores per inch (ppi) controlled
according to the viscosity of the cosmetic composition, is capable of stably
impregnating the cosmetic composition and allows convenient use and carrying of
20 the cosmetic composition.
In an exemplary embodiment of the present disclosure, the viscosity may be
measured using a viscometer, for example, LVDV II+PRO or RVDV III ULTRA,
spindle No. 63 or spindle No. 64, at 5 rpm or 12 rpm, but is not limited thereto.
In an exemplary embodiment of the present disclosure, if the cosmetic
4
composition has a low viscosity, specifically if the cosmetic composition has a
viscosity of 1,000-5,000 cps, more specifically 1,500-4,000 cps, further more
specifically 2,000-3,000 cps, a urethane foam having a hardness measured with an
Asker hardness tester type F of 50-100, specifically 60-90, more specifically 70-80,
may be used as a carrier. If the urethane foam has a hardness below 50, the 5 lowviscosity
cosmetic composition cannot be stably impregnated and separation or
precipitation of the cosmetic composition may occur. And, if the urethane foam has
a hardness exceeding 100, the low-viscosity cosmetic composition may not be easily
ejected.
10 In another exemplary embodiment of the present disclosure, if the cosmetic
composition has a low viscosity as described above, a urethane foam having a
number of pores per inch of greater than or equal to 10 but less than 90 , specifically
20-80 ppi, more specifically 30-70 ppi, may be used as a carrier. If the number of
pores per inch is smaller than 10 ppi, it may be difficult to control the fluidity of the
15 low-viscosity cosmetic composition and to impregnate an adequate amount of the
low-viscosity cosmetic composition. And, if the number of pores per inch of the
urethane foam exceeds 90 ppi, the low-viscosity cosmetic composition may not be
effectively impregnated and separation or precipitation of the cosmetic composition
may occur. In the present disclosure, the "number of pores" means the number of
20 pores per inch of the urethane foam. The number of pores may mean an average
number of pores per inch of a horizontal or vertical line measured according to WIQA-
14 (ASTM).
In an exemplary embodiment of the present disclosure, if the cosmetic
composition has a high viscosity, specifically if the cosmetic composition has a
5
viscosity of 15,000-60,000 cps, more specifically 20,000-55,000 cps, further more
specifically 30,000-50,000 cps, a urethane foam having a hardness measured with
an Asker hardness tester type F of greater than or equal to 1 but less than 50,
specifically greater than or equal to 5 but less than 45, more specifically greater than
or equal to 10 but less than 40, more specifically 15-35, may be used as a carrier. 5 If
the urethane foam has a hardness below 1, the high-viscosity cosmetic composition
may be ejected excessively. And, if the urethane foam has a hardness of 50 and
over, the high-viscosity cosmetic composition may not be uniformly impregnated in
the urethane foam.
10 In another exemplary embodiment of the present disclosure, if the cosmetic
composition has a high viscosity as described above, a urethane foam having a
number of pores per inch of 90-200 ppi, specifically 100-190 ppi, more specifically
110-180 ppi, more specifically 120-170 ppi, may be used as a carrier. If the number
of pores per inch is smaller than 90 ppi, the high-viscosity cosmetic composition may
15 not be uniformly impregnated in the urethane foam. And, if the number of pores per
inch of the urethane foam exceeds 200 ppi, the urethane foam may have
unsatisfactory durability and may deteriorate the feeling of use of the cosmetic
composition.
In an exemplary embodiment of the present disclosure, the urethane foam
20 may be a polyester-based urethane foam or a polyether-based urethane foam. The
polyether-based urethane foam has a larger pore size than the polyester-based
urethane foam and exhibits higher air permeability and better cushioniness, softness,
flexibility and elasticity.
In an exemplary embodiment of the present disclosure, the urethane foam
6
may have a reticulated structure having fine pores. The reticulated structure may
be advantageous in uniformly impregnating the cosmetic composition with higher
efficiency. As used herein, the "pore" of the urethane foam may mean the pore of a
urethane foam having a reticulated structure.
In an exemplary embodiment of the present disclosure, the urethane 5 e foam
may have an open-cell structure. If the urethane foam has a closed-cell structure,
the cosmetic composition may not be easily absorbed since an air bubble is captured
in the urethane foam. In the present disclosure, the open-cell structure refers to a
net-like structure and the closed-cell structure refers to a balloon-like structure
10 having a foamed film through which air or water cannot pass easily.
In an exemplary embodiment of the present disclosure, the cosmetic
composition may be an aqueous dispersion, an oily dispersion, a water-in-oil (W/O)
emulsion or an oil-in-water (O/W) emulsion. The cosmetic composition that can be
used for a carrier for a cosmetic composition according to another exemplary
15 embodiment of the present disclosure may not substantially contain an emulsifying
agent which deteriorates feeling of use.
In an exemplary embodiment of the present disclosure, the cosmetic
composition may be any cosmetic composition for skin care or makeup.
Specifically, the cosmetic composition may be formulated as makeup primer,
20 makeup base, foundation, powder, twin cake, lipstick, lip gloss, eye shadow,
eyebrow, concealer, lip liner, blusher, sunscreen, lotion, cream or essence, more
specifically makeup primer, makeup base, liquid or solid foundation, powder, twin
cake, lipstick, lip gloss, eye shadow, eyebrow, concealer or blusher, but is not limited
thereto. In another exemplary embodiment of the present disclosure, if the
7
cosmetic composition is a sunscreen, the carrier for a cosmetic composition
according to the present disclosure improves stability and portability of a cosmetic
regardless of the viscosity of the sunscreen. In addition, since hand washing is
unnecessary after application of the sunscreen to the skin by ejecting from the
carrier, the user can conveniently enjoy anti-UV effect outdoo5 rs.
In another aspect, the present disclosure provides a cosmetic comprising the
carrier for a cosmetic composition which contains a cosmetic composition. The
cosmetic, which comprises the carrier for a cosmetic composition according to the
present disclosure, can uniformly impregnate low-viscosity and high-viscosity
10 cosmetic compositions for a long time, allows ejection of an adequate amount of the
cosmetic composition and exhibits excellent long-term durability. A cosmetic
composition according to another embodiment of the present disclosure may be
provided in a container which comprises a lower portion for accommodating the
cosmetic and an upper portion having a cover and, optionally, a mirror, which is
15 usually called a compact. If the cosmetic comprising the carrier for a cosmetic
composition containing a sunscreen is provided as a compact, use and carrying are
more convenient as compared to the existing sunscreen cosmetic and a cooling
effect may also be provided.
20 Hereinafter, the present disclosure will be described in detail through
examples, comparative examples and test examples. However, the following
examples, comparative examples and test examples are for illustrative purposes
only and it will be apparent to those of ordinary skill in the art that the scope of the
present disclosure is not limited by the examples.
8
[Preparation Examples 1-3] Preparation of cosmetic compositions
Cosmetic compositions having viscosities of 1,000-5,000 cps, greater than
5,000 but less than 15,000 cps and greater than or equal to 15,000 but less than
60,000 cps were prepared as described in Table 1.
Specifically, anti-UV agents were dissolved by adding to oily component5 s.
After emulsification and mixing with surfactants, the mixture was homogenized by
stirring at 80 ºC. After mixing with pigments, the mixture was homogenized by
stirring again to prepare an oily mixture. In a separate mixer, aqueous components
were mixed and completely dissolved by stirring at 80 ºC to prepare an aqueous
10 component mixture. The aqueous mixture was slowly added to the oily mixture
prepared above and emulsified using a homogenizing mixer. After cooling to 50 ºC
and adding skin-protecting components (humectants), fragrance, etc., the mixture
was cooled to obtain a cosmetic composition.
【Table 1】
Components (wt%) P reparation
Example 1
Comparative
Preparation
Example 2
Preparatio
n Example
3
Oily mixture
Oily components
Ozokerite - 0.2 1.0
Dicaprylyl carbonate 10.00 10.00 10.00
Preservative Methylparaben 0.100 0.100 0.100
Anti-UV agents
Octyl methoxycinnamate 7.000 7.000 7.000
Isoamyl p-methoxycinnamate 2.000 2.000 2.000
Pigment Disteardimonium hectorite 0.2 1.50 2.00
Oily component Decamethylcyclopentasiloxane 16.00 16.00 16.00
Surfactants
Sorbitan sesquioleate 2.000 2.000 2.000
Lauryl PEG/PPG-18/18 1.500 1.500 1.500
9
methicone
Pigments
Poly(methyl methacrylate) 5.00 5.00 5.00
Titanium dioxide/aluminum
hydroxide/stearic acid
7.00 7.00 7.00
Aqueous mixture
Water To 100 To 100 To 100
Emulsification
stabilizer
Salt 1.00 1.00 1.00
Humectant Glycerine 8.000 8.000 8.000
Fragrance 0.400 0.400 0.400
Total 100 100 100
In Table 1, disteardimonium hectorite serves as a thickener, poly(methyl
methacrylate) serves as an extender pigment and titanium dioxide/aluminum
hydroxide/stearic acid serves as an inorganic anti-UV agent.
[Examples and Comparative Example] Preparation of urethane foams
Polyether-based urethane foams were prepared as described in Table 5 e 2.
The number of pores per inch was measured by counting and averaging the number
of pores per inch of a horizontal or vertical line according to WI-QA-14 (ASTM).
【Table 2】.
Example 1 Example 2
Comparative
Example
Number of pores per
inch (ppi)
50 150 100
Asker type F hardness 80 30 40
[Test Example 1] Evaluation of stability of urethane foam carrier depending
10 on viscosity of cosmetic composition
10
The cosmetic compositions prepared in Preparation Examples 1-3 were
impregnated in the urethane foams of Examples 1-2 and Comparative Example and
then stability was evaluated. Filling ability, impregnating ability and discharging
ability were evaluated. The filling ability was measured as the time required to fill
15 g of the cosmetic composition. The impregnating ability was measured 5 as the
amount of the cosmetic composition impregnated in the container after impregnating
15 g of the cosmetic composition. The discharging ability was measured as the
amount of the cosmetic composition ejected when the cosmetic composition
impregnated in the container was applied once using a puff. The result is given in
10 Table 3.
【Table 3】.
Cosmetic
compositions
Preparation Example 1
(3,000 cps)
Preparation Example 2
(40,000 cps)
Example 1
50 ppi
hardness 80
Filling ability ◎ Filling ability: Δ
Impregnating ability ◎ Impregnating ability: O
Discharging ability ◎
Discharging ability: X (excessive
ejection due to high viscosity
and small ppi)
Example 2
150 ppi
hardness 30
Filling ability O Filling ability: ◎
Impregnating ability X
(separation from carrier)
Impregnating ability: ◎
11
Discharging ability O Discharging ability: ◎
Comparative Example: A content with a viscosity of 8000 cps was absorbed in a
foam having 100 ppi and a hardness of 40.
Filling ability: Δ, impregnating ability: Δ, discharging ability: X
◎: very good, O: good, Δ: moderate, X: poor.
As seen from above, the urethane foam of Example 1 whose number of
pores per inch is 10-90 and Asker type F hardness is 50-100 can stably hold the
cosmetic composition having a viscosity of 1,000-5,000 cps and the urethane foam
of Example 2 whose number of pores per inch is 90-200 and Asker type F hardne5 ss
is 1-50 can stably hold the cosmetic composition having a viscosity of 15,000-60,000
cps.
[Test Example 2] Evaluation of preference depending on viscosity of cosmetic
composition
10 After impregnating the cosmetic compositions of Preparation Examples 1-3 in
the polyether-based urethane foams of Examples 1-2 and Comparative Example,
preference for the urethane foams was evaluated. Specifically, 100 women were
divided into 5 groups with 20 people each. They were asked to apply the cosmetic
compositions of Preparation Examples 1-2 absorbed in the polyether-based
15 urethane foams of Examples 1-2 and Comparative Example for 2 days using a
Rubycell puff and to evaluate overall preference considering feeling of use,
applicability, uniformness, etc. They were asked to grade the preference with a
maximum of 100 points based on pay-off (ejection) amount, application amount,
convenience of use, or the like. The result is given in Table 4. An adequate pay12
off amount, which can vary from user to user, leads to adequate application of the
cosmetic composition, with less lumping and uniform covering.
【Table 4】
impregnated cosmetic composition
Preference
score
Example 1 Preparation Example 1 50
Example 2 Preparation Example 1 85
Comparative Example Preparation Example 1 70
Example 1 Preparation Example 2 90
Example 2 Preparation Example 2 40
Comparative Example Preparation Example 2 70
As seen from above, the preference for the cosmetic composition having a
viscosity of 1,000-5,000 cps was the highest when it was absorbed in the urethan5 e
foam of Example 1 which had a number of pores per inch of 10-90 and an Asker type
F hardness of 50-100. And, the preference for the cosmetic composition having a
viscosity of 15,000-60,000 cps was the highest when it was absorbed in the urethane
foam of Example 2 which had a number of pores per inch of 90-200 and an Asker
10 type F hardness of 1-50.
As described above, low-viscosity and high-viscosity cosmetic compositions
can be stably impregnated in a urethane foam whose number of pores per inch and
hardness are controlled according thereto. In addition, by selecting an adequate
urethane foam depending on the viscosity of the cosmetic composition, a cosmetic
15 which is convenient to use and carry can be prepared.
13
We Claim:-
【Claim 1】
A carrier for a cosmetic composition comprising a urethane foam having a
hardness of 1-100 when measured with an Asker hardness tester type F before
impregnation, wherein the cosmetic composition has a viscosity of 1,000-5 5,000
centipoise (cps) or 15,000-60,000 cps.
【Claim 2】
The carrier for a cosmetic composition according to claim 1, wherein the
10 cosmetic composition has a viscosity of 1,000-5,000 cps and the urethane foam has
a hardness of 50-100 when measured with an Asker hardness tester type F before
impregnation.
【Claim 3】
15 The carrier for a cosmetic composition according to claim 1, wherein the
cosmetic composition has a viscosity of 15,000-60,000 cps and the urethane foam
has a hardness of greater than or equal to 1 but less than 50 when measured with
an Asker hardness tester type F before impregnation.
20 【Claim 4】
A carrier for a cosmetic composition comprising a urethane foam having a
number of pores per inch (ppi) of 10-200, wherein the cosmetic composition has a
viscosity of 1,000-5,000 centipoise (cps) or 15,000-60,000 cps.
[Claim 51
The carrier for a cosmetic composition according to claim 4. wherein the
urethane foam has a number of pores per inch of greater than or equal to 10 but less
than 90 and the cosmetic composition has a viscosity of 1,000-5,000 cps.
[Claim 61
The carrier for a cosmetic composition according to claim 4, wherein the
urethane foam has a number of pores per inch of 90-200 ppi and the cosmetic
composition has a viscosity of 15,000-60,000 cps.
10
[Claim 7]
The carrier for a cosmetic composition according to any one of claims 1 to 6,
wherein the urethane foam is a poly ether-based urethane foam.
15 [Claim 8]
The carrier for a cosmetic composition according to any one of claims 1 to 6,
wherein the cosmetic composition is an aqueous dispersion, an oily dispersion, a
water-in-oil (W/O) emulsion or an oil-in-water (O/W) emulsion.
20 [Claim 9]
A cosmetic comprising the carrier for a cosmetic composition according to
any one of claims 1 to 6 comprising a cosmetic composition.