KR20150125717A

KR20150125717A - Cosmetic for shower use, and cosmetic cartridge

Info

Publication number: KR20150125717A
Application number: KR1020157027815A
Authority: KR
Inventors: 츠요시 마츠시타
Original assignee: 가부시키가이샤 엠티지
Priority date: 2013-03-11
Filing date: 2013-11-28
Publication date: 2015-11-09
Also published as: TWI629065B; CN105142609A; CN105142609B; HK1218508A1; JPWO2014141543A1; WO2014141543A1; TW201434491A; JP6280911B2

Abstract

The cosmetic agent for a shower contains a polyoxyethylene glycol (PEG) / polyoxypropylene glycol (PPG) copolymer as an essential component. The cosmetic agent for a shower preferably includes polyvinyl alcohol (PVA), further preferably cosmetic agent. With this configuration, it is possible to secure a constant amount of elution with respect to cold water or hot water, while suppressing excessive solubility, thereby obtaining sufficient persistence of solid shape.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cosmetic,

The present invention relates to a cosmetic agent for a shower and a cosmetic agent cartridge housed in a makeup cartridge detachably incorporated in a shower head.

In general, cosmetic agents such as an emulsion, a moisturizing agent, a fragrance, and a bathing agent are filled in a makeup cartridge of a shower device provided in a bathroom or a washroom. Such cosmetic ingredients are dissolved in cold water or warm water in the cosmetic cartridge and scattered from the showerhead. The cosmetic agent composition is usually filled in the cosmetic agent cartridge as a solid or a powder, but is easily dissolved in cold water or hot water, so that it dissolves in cold water or hot water for a short period of time and is not persistent in its solid form, . For this reason, the cosmetic agent must be frequently supplied to the makeup cartridge, which is troublesome. Therefore, there is a demand for a cosmetic composition having solubility in cold water or hot water so as to have a solid shape and persistence.

This type of solid shower product is disclosed in Patent Document 1. The solid shower product contains 30 to 95% by weight of polyethylene glycol together with one or more components selected from coloring matters, flavorings, bath solvents, detergents and cosmetics. As the polyethylene glycol, an average molecular weight of 1000 to 6000 is suitably used. By using this solid shower product, the dissolution time of the solid shower product for cold water or hot water is long, and the dissolution of coloring matters, flavorings, bath solvents, cleaning agents and cosmetics can be made uniform.

Japanese Patent Publication No. 2-7571

Polyethylene glycol is used as a component for suppressing solubility in water in the solid shower product of the conventional constitution described in Patent Document 1 described above. However, the polyethylene glycol has a higher solubility in water than polypropylene glycol and the like. Therefore, when the cosmetic agent composition is filled in the cosmetic cartridge and used, the solubility in water is relatively high, and particularly the solubility in hot water at 35 ° C or higher becomes even higher. Therefore, as a solid shower product for cosmetic cartridges, persistence in a solid shape was insufficient.

The present invention has been made in view of the problems existing in such conventional techniques. An object of the present invention is to provide a cosmetic for a shower which can secure a certain amount of elution with cold water or hot water while suppressing an excessive solubility to obtain sufficient persistence of a solid shape.

In order to achieve the above object, the cosmetic for shower of the present invention comprises a copolymer of polyoxyethylene glycol (hereinafter referred to as PEG) / polyoxypropylene glycol (hereinafter referred to as PPG) as an essential component.

It is preferable that the cosmetic for shower contains polyvinyl alcohol (hereinafter referred to as PVA).

It is preferable that the cosmetic for shower contains cosmetic agent.

The PEG / PPG copolymer, PVA or cosmetic agent is preferably uniformly dispersed and solid at room temperature.

The weight ratio (PEG / PPG) of PEG to PPG in the PEG / PPG copolymer is preferably (150 to 200) / (35 to 70).

The PVA is preferably a partially saponified PVA having a degree of saponification of 86 to 90 mol%.

The content of the PVA is preferably 0.7 to 15% by weight.

The makeup cartridge accommodated in the shower head of the present invention has an inlet for introducing cold water or hot water, a water passage for communicating with the inlet, and a storage chamber for storing the cosmetic agent, And a cosmetic agent storage portion having a communicating portion for allowing cold water or hot water passing through the water passage to go into and out of the storage chamber, wherein the cosmetic agent storage portion contains any one of the shower cosmetic compositions described above.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to secure a constant amount of elution with respect to cold water or hot water, while suppressing excessive solubility and obtaining sufficient continuity.

1 is an external view of a shower head, wherein (a) is a front view and (b) is a right side view.
Fig. 2 is a cross-sectional view of the shower head, and Fig. 2 (a) is a longitudinal sectional view of the grip portion, and Fig. 2 (b) is a longitudinal sectional view of a grip portion cut at a portion different from (a).
3 is a view for explaining the internal structure of the grip portion of the shower head, wherein (a) is a plan view and (b) is a perspective view.
FIG. 4 is a perspective view of a cartridge incorporated in a showerhead, FIG. 4 (a) is a perspective view showing the appearance of the cartridge, and FIG.
5 is a graph showing the relationship between the temperature of the hot water and the dissolution concentration of the cosmetic agent for shower in hot water for the cosmetic agent for shower of Example 1 and Comparative Examples 1 and 2.

Hereinafter, embodiments of the present invention will be described in detail.

The cosmetic agent for a shower contains PEG / PPG copolymer as an essential component. It is preferable that the cosmetic for shower contains PVA, and it is preferable that cosmetic agent is further included. The cosmetic for shower may contain other components.

Next, each component of the cosmetic agent for a shower will be described.

(PEG / PPG copolymer)

The PEG / PPG copolymer has a polyoxyethylene glycol (polyethylene glycol) unit and a polyoxypropylene glycol (polypropylene glycol) unit in the molecule and is a nonionic surfactant and has a moisturizing effect. As the PEG / PPG copolymer used as a cosmetic agent for a shower, a solid at room temperature is preferable.

The PEG units constituting the PEG / PPG copolymer function to enhance the solubility of the shower cosmetic agent in water (cold water or hot water), and the PPG unit functions to suppress the solubility of the shower cosmetic agent in water. Therefore, by having both of the PEG unit and the PPG unit, the PEG unit and the PPG unit work synergistically, so that the solubility of the cosmetic agent for shower to cold water and hot water can be suppressed and the dissolution can be continued.

The copolymerization ratio of PEG to PPG in the PEG / PPG copolymer is not particularly limited. Accordingly, the following can be mentioned as the PEG / PPG copolymer (the numbers indicate the weight ratio).

PEG / PPG-3/17 copolymers, PEG / PPG-5/30 copolymers, PEG / PPG-5/35 copolymers, PEG / PPG-8/55 copolymers, PEG / PPG- PEG / PPG-20/9 copolymers, PEG / PPG-20/9 copolymers, PEG / PPG- PEG / PPG-20/60 copolymers, PEG / PPG-22/25 copolymers, PEG / PPG-25/30 copolymers, PEG / PPG- PEG / PPG-200/40 copolymers, PEG / PPG-50/40 copolymers, PEG / PPG- PEG / PPG-200/70 copolymer, PEG / PPG-240/60 copolymer, PEG / PPG-300/55 copolymer.

In the examples of the copolymer, it is preferable that PEG / PPG (weight ratio) is in the range of (150 to 200) / (35 to 70). If the copolymerization ratio exceeds 150/35 and the proportion of PEG increases, the solubility of the cosmetic agent for shower to cold water and hot water tends to become too high. On the other hand, if the copolymerization ratio becomes smaller than 200/70 and the proportion of PEG becomes small, the solubility of the cosmetic agent for shower in cold water and hot water becomes insufficient.

In addition, the coagulation point of the copolymer having a weight ratio of PEG / PPG of 150/35 is 52 ° C and the coagulation point of the copolymer having a weight ratio of PEG / PPG of 200/70 is 55 ° C.

Further, if the molecular weight (degree of polymerization) of the PEG / PPG copolymer is increased, the rate of dissolution of the cosmetic agent for shower in cold water or hot water is suppressed and the swelling is suppressed, but a bodily sensation (smooth feeling) The molecular weight of the PEG / PPG copolymer is appropriately set in consideration of these factors.

(PVA)

PVA has a very strong hydrophilic property in that it has a large number of hydroxyl groups, and is particularly characterized by being soluble in hot water. Therefore, by blending PVA in a cosmetic agent for a shower, the solubility of a cosmetic agent for a shower against hot water of 35 ° C or higher can be enhanced.

This PVA is obtained by a saponification reaction of polyvinyl acetate and is represented by the following general formula.

- [CH ₂ -CH (OH)] _m - [CH ₂ -CH (OCOCH ₃ )] _n

Here, the degree of polymerization of PVA is m + n, and the degree of saponification is m / (m + n).

The PVA used as a cosmetic agent for a shower is preferably partially saponified PVA in view of being able to suppress swelling while increasing solubility in hot water. The saponification degree is preferably 86 to 90 mol%, and the degree of polymerization is preferably 1800 - 2000. When the degree of saponification is less than 86 mol% or the degree of polymerization is less than 1800, the cosmetic for shower tends to be swollen with cold water or hot water, which is not preferable. On the other hand, when the degree of saponification is higher than 90 mol% or the degree of polymerization is higher than 2000, the solubility of the cosmetic agent for shower in cold water or hot water is lowered.

(Made in beauty)

Examples of cosmetic preparations include collagen, ceramides, placenta, various vitamins (such as vitamin C and vitamin E), natural perfumes, synthetic perfumes, perfume fragrances (fragrances), emulsions, moisturizers, perfumes, deodorants, Emulsifiers, amino acids, water, and the like. The kind of the cosmetic agent is not limited, and a known agent may be used.

By containing the PEG / PPG copolymer and PVA, the cosmetic agent can be eluted for a long period of time without the need for the cosmetic agent to be eluted unnecessarily from the cosmetic for shower.

(Other additive components)

As other additive components, a viscosity adjusting agent, an excipient, and the like are suitably selected and used.

(Composition of cosmetic for shower)

The PEG / PPG copolymer constituting the cosmetic for shower is a main component of the cosmetic for shower, and it is preferable that the PEG / PPG copolymer contains 80 to 97% by weight in the cosmetic for shower. When the content of the PEG / PPG copolymer is less than 80% by weight, it is difficult to obtain suitable solubility of the shower cosmetic agent for cold water or hot water, and it becomes difficult to obtain moisture retention. On the other hand, if the content of the PEG / PPG copolymer exceeds 97% by weight, the content of the PVA and the cosmetic agent decreases relatively, and an effect based on these components can not be obtained.

In addition, the PVA is preferably contained in the cosmetic agent for a shower in an amount of 0.7 to 15% by weight, more preferably 3.5 to 15% by weight. When the content of PVA is less than 0.7% by weight, it tends to cause swelling of the cosmetic material for shower when the shower cosmetic agent is used in contact with cold water or hot water, which is not preferable. On the other hand, when the content of PVA exceeds 15% by weight, the content of the PEG / PPG copolymer and the cosmetic agent becomes relatively small, and the effect of these components is not sufficiently exhibited.

The beauty agent is preferably contained in the cosmetic agent for shower to 2 to 7 wt%. When the content of the cosmetic agent is less than 2% by weight, the effects such as moisturizing and directionality as a cosmetic agent can not be fully manifested. On the other hand, when the content of the cosmetic agent is more than 7% by weight, the content of the PEG / PPG copolymer or PVA becomes relatively small, and the function of the cosmetic agent is not sufficiently manifested.

When other additive components are blended, the content thereof is preferably 5% by weight or less in the cosmetic for shower. If the content of the other additive component exceeds 5% by weight, the content of each of the above-mentioned components decreases, and the original function of the cosmetic for shower can not be exhibited.

It is preferable that the above-mentioned cosmetic agent for shower is a solid form at normal temperature in order to be housed in the makeup cartridge and to facilitate management. That is, when the cosmetic for shower is not used at the time of cleaning the body by a shower, it is preferable that the cosmetic is in a solid state at room temperature to maintain its shape. It is preferable that the PEG / PPG copolymer, PVA and cosmetic agent are uniformly dispersed so that when they are eluted at the time of use, each component can be eluted uniformly.

(Makeup cartridge and shower head)

Next, the configuration of the showerhead 10 and the cartridge 50 in which the cosmetic agent cartridge (hereinafter simply referred to as a cartridge) 50 of the embodiment is incorporated will be described with reference to Figs. 1 to 4. Fig.

1 (a) and 1 (b), the showerhead 10 is composed of a head portion 11 and a grip portion 12. As shown in Fig. The head portion 11 is provided with a switch portion (not shown) for switching the channel 70 in the grip portion 12 to communicate with any one of the flow paths 71 and 72 on the downstream side shown in FIGS. 2A and 2B 20 are installed. The flow paths 71 and 72 are joined at the downstream side of the switching portion 20. The switching unit 20 is provided with a first operating member 45 and a second operating member 48. A plurality of water spray holes 16 are formed at the tip of the head part 11. [

2 (a) and 2 (b), the cartridge 50 is accommodated in the water channel 70 of the grip portion 12 in a replaceable manner. A water passage gap 12c is formed in the water passage 70 between the inner peripheral surface of the grip portion 12 and the outer peripheral surface of the cartridge 50. [ The head portion 11 and the grip portion 12 are connected through the engagement portion 12d and the upper portion of the water channel 70 is opened by releasing the engagement so that the cartridge 50 Can be detached.

3 (a) and 3 (b), a plurality of lifting portions 12e are formed on the bottom of the water channel 70 on the downstream side. 2 (a) and 2 (b), cold water and hot water are diffused into the water channel 70 by placing the cartridge 50 on the raised portion 12e. A plurality of positioning ribs 12f are formed on the inner circumferential surface of the grip portion 12 so as to engage with the outer circumferential surface of the cartridge 50 to position the cartridge 50 at the center position of the channel 70. [

4 (a) and 4 (b), the cartridge 50 has the lid member 61. The cartridge 50 includes a cartridge case 51 having a bottomed cylindrical shape. A plurality of slits 51a are formed in a bottom wall (bottom wall) of the cartridge case 51. As shown in Fig. 4 (b), a columnar valve chamber 51b communicating with the slit 51a is formed at the center of the bottom wall of the cartridge case 51. As shown in Fig. The valve chamber 51b communicates with an inner tube 53 described later through an opening 51c provided in the upper portion of the valve chamber 51b. The opening 51c corresponds to an inlet, and the inner pipe 53 corresponds to a water passage.

As shown in Figs. 2 (a) and 2 (b) and Fig. 4 (b), a duckbill valve 52 made of an elastic material such as rubber which functions as a check valve is disposed in the valve chamber 51b . The distal end portion 52b of the duckbill valve 52 is divided into two, and the distal end portion 52b thereof is elastically contacted.

As shown in Figs. 2 (a) and 2 (b) and Fig. 4 (b), a cylindrical inner tube 53 having a lower portion integrated with the valve chamber 51b is formed in the axial center of the cartridge case 51 Respectively. The inner pipe 53 is provided with a plurality of communication holes 53c at predetermined pitches in the circumferential direction and over the entire length in the longitudinal direction. The communication hole 53c corresponds to the communicating portion. A medicament accommodating portion 54 is defined between the inner tube 53 and the valve chamber 51b and the cartridge case 51. [ A common outlet member 55 is fitted in the downstream end of the cartridge case 51 and the end of the inner pipe 53 is inserted therein and the outlet member 55 and the inner pipe 53 ) Are communicated with each other. In the storage space of the medicine accommodating portion 54, a water-soluble cosmetic agent for shower 100, which is solid and formed almost cylindrically, is accommodated. The storage space of the medicine accommodating portion 54 corresponds to the storage chamber, and the medicine accommodating portion 54 corresponds to the cosmetic agent storage portion. A space 101 is formed between the downstream end of the cosmetic agent for shower 100 and the lower end of the outlet member 55 in the initial state where the cosmetic agent for shower 100 is not dissolved. In the present embodiment, for example, a moisturizing agent containing a moisturizing component is used as the cosmetic agent for a shower 100. The cosmetic agent for a shower 100 is dissolved by cold water or warm water introduced through the communication hole 53c of the inner tube 53 to produce a moisturizing liquid. Then, the moisturizing liquid flows out of the cartridge 50 through the outlet member 55.

A network strainer 57 is disposed between the upper end of the inner pipe 53 and the outlet member 55 shown in FIG. 4 (b). The strainer 57 is made of a mesh or the like, and a plurality of fine holes are formed in the strainer 57. The strainer 57 separates from the drug 100 in the solid state and fixes the granules flowing out from the communication hole 53c so as not to flow out to the head portion 11 side. The strainer 57 is formed in a reverse cup shape as a whole and bulges toward the downstream of the cosmetic agent for shower 100.

Next, the operation of the cosmetic agent cartridge and shower cosmetic agent of the showerhead structured as described above will be described.

In the case of using a shower not containing a moisturizing liquid, as shown in Fig. 2A, the user presses the second operating member 48 in. The flow path 72 on the side of the inner pipe 53 is closed while the flow path 71 on the side of the water passage interval 12c of the water path 70 is opened and the cold water or hot water is supplied to the shower hose And flows into the flow path 71 of the head portion 11 and is discharged into the spray hole 16 through the water passage gap 12c. In this case, the duckbill valve 52 is not opened and water does not flow into the inner tube 53 of the cartridge 50 because the flow path 72 on the downstream side of the inner tube 53 is closed. Even if the hydraulic pressure in the inner pipe 53 becomes higher than the hydraulic pressure on the upstream side of the duckbill valve 52 because the duckbill valve 52 is blocked by its own elasticity in this state, In the valve closing direction. Therefore, it is possible to avoid the backwash of the moisturizing liquid in the inner pipe 53 toward the shower hose outside the shower head 10. [

In the case of using a shower including a moisturizing liquid, the user presses the pushing portion 45a of the first operating member 45. [ Therefore, the flow path 72 is opened, though not shown. 2 (a) and Fig. 2 (b), not only the cold water or hot water flows from the water passage interval 12c toward the flow path 71 but also the flow path 72 on the upstream side of the duckbill valve 52 is opened. The duck valve 52 is opened and flows into the inner tube 53 of the cartridge 50. [ The cold or hot water flowing into the inner pipe 53 flows into the medicine receiving portion 54 through the communication hole 53c of the inner pipe 53. [ The cold water or warm water flowing into the medicine accommodating portion 54 dissolves the medicine in the medicine accommodating portion 54 to become a moisturizing liquid. The moisturizing liquid then flows out from the communication hole 53c into the inner pipe 53 and flows into the flow path 72 in the outlet member 55 through the strainer 57. [

The moisturizing liquid in the flow path 72 is mixed with the cold water or hot water flowing in the flow path 71 from the water flow interval 12c on the downstream side of the switching portion 20 to become a diluted moisturizing liquid. Then, the diluted moisturizing liquid is discharged from the water spray hole (16). When the volume of the cosmetic agent for shower 100 is reduced due to dissolution, the water in the valve chamber 51b is not formed in the wall of the valve chamber 51b, Or hot water forms turbulence around the cosmetic agent for shower 100 after volume reduction to float the cosmetic agent for shower 100 after volume reduction. Therefore, even if no hole is formed in the wall of the valve chamber 51b, the cosmetic agent for shower 100 dissolves appropriately and flows out from the communication hole 53c.

As described above, by the selection operation of the first and second operating members 45 and 48, it is possible to obtain a shower including a normal shower and a moisturizing liquid not containing a moisturizing liquid. In this case, the inner diameter of the inner pipe 53, the size and the number of the openings of the communication hole 53c, the arrangement position, and the like are set so as to obtain an appropriate concentration of the moisturizing liquid. In this case, the cosmetic agent for shower 100 is slightly fuzzed by the cold water or hot water flowing into the medicament accommodating portion 54, and instantly melted.

A space 101 is formed on the downstream side of the cosmetic agent for shower 100 and a space is formed between the upper end of the cosmetic agent for shower 100 and the strainer 57. In addition, As shown in Fig. Therefore, a relatively large solid body peeled off from the cosmetic agent for shower 100 moves on the upstream side of the strainer 57 as if it is flooded by the water current. Therefore, it is possible to prevent such a solid body from adhering to the inside of the strainer 57 and clogging the flow path.

Since the PEG / PPG copolymer is contained as an essential ingredient in the cosmetic agent for shower 100, the solubility in cold water or hot water can be suppressed and a certain solubility can be exhibited. Since the PVA is contained in the cosmetic agent for shower 100, the solubility in hot water can be increased in particular. In addition, the moisturizing agent as a cosmetic agent can improve the moisturization of the skin after showering.

As described above, according to the showering cosmetic material 100 of the present embodiment, excessive solubility in cold water or hot water can be suppressed, and it can be eluted in a stable state over a long period of time at a constant amount of elution.

(Change example)

In the above embodiment, a humectant is used as the medicine contained in the cartridge 50. The medicine contained in the cartridge 50 is not limited to this, and may be perfume, slimming agent, other cosmetic additives such as cosmetic lotion having a whitening effect, a restorative agent, acne, atopy, In the above embodiment, a solid and cylindrical medicine is used, but the shape and form of the medicine are not limited to this. For example, a gel-like or granular agent may be used.

In the above embodiment, when spraying water only from the showerhead 10, the cartridge 50 is provided with a duckbill valve 52 so that water does not flow into the cartridge 50. [ The check valve for preventing the water from flowing into the cartridge when spraying only water may have a configuration other than the duckbill valve 52. In the case of spraying only water, water may flow into the cartridge 50 if the solution dissolved in the cartridge 50 does not flow out.

According to this embodiment, the following effects can be obtained.

(1) The cosmetic for shower of the present embodiment is constituted so as to contain a PEG / PPG copolymer as an essential component. As a result, by the synergistic action of the PEG unit and the PPG unit of the PEG / PPG copolymer, it is possible to secure a constant amount of elution with respect to cold water or hot water, while suppressing excessive solubility and obtaining sufficient persistence of solid shape.

(2) The make-up agent for shower was further configured to include PVA. The solubility of PVA in water changes with temperature and is higher than that of cold water with respect to hot water. Therefore, by adjusting the addition amount of PVA, the solubility of the entire cosmetic agent for shower can be adjusted to cold water or hot water. By adding PVA, the swelling property of the cosmetic for shower can be suppressed.

(3) The make-up agent for shower is further configured to contain beauty agent. Therefore, it is possible to exhibit effects such as moisturizing, deodorizing, limiting, and antiseptic effects based on a cosmetic agent while maintaining proper solubility of the cosmetic agent for shower to cold water or hot water.

(4) In the cosmetic for shower of the present embodiment, the PEG / PPG copolymer and the PVA and the cosmetic agent were uniformly dispersed and solidified at room temperature. As a result, these components can be uniformly eluted at the time of use.

(5) The weight ratio of PEG to PPG in the PEG / PPG copolymer is (150 to 200) / (35 to 70). In this case, the solubility of the cosmetic agent for shower to water and hot water can be suppressed and the persistence can be improved.

(6) The PVA is a partially saponified PVA having a saponification degree of 86 to 90 mol%. As a result, by adjusting the amount of the partially saponified PVA to be added, the solubility of the entire cosmetic agent for shower can be more easily controlled with respect to cold water or hot water. Further, by adding the partially saponified PVA, the swelling property of the cosmetic for shower can be suppressed.

(7) The content of the PVA is 0.7 to 15% by weight. As a result, when using the cosmetic agent for shower, it is possible to reduce the possibility that the cosmetic agent for shower comes into contact with cold water or hot water to swell. A more preferable content of PVA is 1 to 13% by weight, referring to Example 11 and Examples 14 and 15. A further preferred content of PVA is from 3.5 to 7% by weight, referring to Examples 2, 9 and 10.

(8) The toiletry cartridge according to the present embodiment includes an opening 51c (inlet) for introducing cold water or hot water, an inner tube 53 (water passage) for communicating with the opening 51c, (Water supply passage) communicating with the storage space and the inner pipe 53 (water passage) through the communication hole 53c allowing the cold water or hot water to pass through the storage space, (Medicament-containing chamber) having a communicating part (communicating part), and the medicinal-solution receiving part 54 contains the cosmetic for shower 100.

As a result, according to the present embodiment, it is possible to appropriately use the aforementioned cosmetic agent for a shower which can secure a certain amount of elution with cold water or hot water, and suppress excessive solubility and obtain a sufficient solid state persistence.

Example

Next, the above embodiment will be described in more detail with reference to examples and comparative examples.

(Example 1 and Comparative Examples 1 and 2)

In Example 1, the following ingredients a to d were mixed by the following production method to prepare a shower cosmetic.

(a)

PEG / PPG-150/35 copolymer 92.15 wt%

(b1) 1.7% by weight of the following three components in total:

1,2-octanediol (humectant), ethylhexyl glycerin (deodorant, limiting agent), methyl paraoxybenzoate (preservative)

(b2) 1.5 weight% of the following three components in total:

Amino acids, collagen, water

(c)

PVA 3.65 wt%

(d)

Perfume 1.0 wt%

(Manufacturing method)

A manufacturing method of a cosmetic agent for a shower will be described.

The materials of the above a, b1 and b2 are put into a vacuum emulsification kettle and heated to 80 DEG C under vacuum while stirring with a paddle to dissolve uniformly. The heating temperature is 80 deg. C in this embodiment, but may be a temperature suitable for melting.

Next, the material of the division c is put into the pot and heated in a vacuum state to 80 DEG C while stirring with a paddle, and mixed until it becomes uniform. The heating temperature is 80 DEG C in this embodiment, but it may be a temperature suitable for uniform dispersion.

Next, while cooling with a paddle is started, cooling in a vacuum state is started. When the temperature of the material is lowered to a predetermined temperature (for example, about 65 캜), the material of the division d is put into the paddle, At a time point at which the temperature becomes further lower than the extraction temperature, and is molded into a predetermined shape to obtain a cosmetic for shower. The cosmetic agent for a shower has a solid shape at room temperature (for example, 25 占 폚). Further, the take-out temperature is not limited as long as it is a temperature that is easily taken out from the pot (65 DEG C in this embodiment).

The shape of the cosmetic agent for shower is not limited as long as it can be housed in a cartridge for loading the cosmetic agent for shower. For example, as the shape of the cosmetic for shower which can be stored in the cartridge, a suitable shape such as powder, granular form, columnar form, and ordinary form can be selected.

In Comparative Example 1, instead of the PEG / PPG-150/35 copolymer in Example 1, a PEG homopolymer having approximately the same unit (block) as the PEG unit of the PEG / PPG-150 / Used.

In Comparative Example 2, a PPG homopolymer having approximately the same unit (block) as the PPG unit of the PEG / PPG-150/35 copolymer was used instead of the PEG / PPG-150/35 copolymer in Example 1 did.

The shapes of the cosmetic preparations in the examples and the comparative examples were set to be normal in order to maintain the same conditions.

(Test Methods)

The above-described cartridge 50 was filled with the shower cosmetic agent of Example 1 and Comparative Examples 1 and 2, and hot water at 35 ° C, 40 ° C and 45 ° C was supplied from the showerhead at a flow rate of 9 L / I was living. That is, in one test cycle, hot water is passed for 1 minute and left at room temperature for 1 hour, then hot water is passed for 15 minutes, and after drying at 40 ° C for 8 hours, the weight of the cartridge 50 is measured, (G) of the cosmetic agent in the solution was measured to determine the elution concentration (ppm). The results are shown in Table 1 and Fig.

In Fig. 5,? Represents Example 1,? Represents Comparative Example 1, and? Represents Comparative Example 2.

As shown in Table 1 and Fig. 5, in Example 1, the dissolution concentration of the cosmetic agent for shower can be suppressed to a low concentration of 13.4 to 36.9 ppm regardless of the temperature of the hot water. On the other hand, in the case of PEG of Comparative Example 1, the elution concentration was as high as 41.3 ppm when the temperature of the hot water was 35 ° C, and the elution concentration rose to 89.2 ppm when the temperature was 45 ° C. In the case of PPG of Comparative Example 2, the elution concentration was relatively low, ie, the elution concentration was 22.9 ppm when the temperature of the hot water was 35 ° C. However, at 40 ° C., the elution concentration rose sharply up to 80.3 ppm, The concentration reached 112.3 ppm.

Next, regarding the cosmetic for shower of Example 1 and Comparative Examples 1 and 2, the sensation (smooth feeling) during shower use, the moisturizing effect after drying and the persistence of the solid shape were measured, and the results are shown in Table 2 .

As shown in Table 2, in Example 1, no swelling by water was observed in any of the bodily sensation during use of the shower, the moisturizing effect after drying, and the solid shape persistence, and good results were obtained. On the other hand, in the case of PEG of Comparative Example 1, although the solid shape can be maintained, the elution concentration on the hot water can not be adjusted, and a smooth feeling during use of the shower can not be obtained. In the case of PPG of Comparative Example 2, a smooth feeling could be obtained during use of the shower, but the solid shape could not be sustained and a moisturizing effect after drying could not be obtained.

(For swelling property)

(Examples 2 to 5)

Next, Examples 2 to 5 will be described.

The ingredients of the shower cosmetic compositions of Examples 2 to 5 were prepared as follows.

(Example 2)

(a)

PEG / PPG-150/35 copolymer 91.8 wt%

(b1) 1.7% by weight of the following three components in total:

1,2-octanediol, ethylhexyl glycerin, methyl paraoxybenzoate

(b2) 2.0 wt% of the following three components in total:

Amino acids, collagen, water

(c)

PVA 3.5 wt%

(d)

Perfume 1.0 wt%

(Example 3)

(a)

PEG / PPG-150/35 copolymer 92.8 wt%

(b1) 1.7% by weight of the following three components in total:

1,2-octanediol, ethylhexyl glycerin, methyl paraoxybenzoate

(b2) 2.0 wt% of the following three components in total:

Amino acids, collagen, water

(c)

PVA 2.5 wt%

(d)

Perfume 1.0 wt%

(Example 4)

(a)

PEG / PPG-150/35 copolymer 93.8 wt%

(b1) 1.7% by weight of the following three components in total:

1,2-octanediol, ethylhexyl glycerin, methyl paraoxybenzoate

(b2) 2.0 wt% of the following three components in total:

Amino acids, collagen, water

(c)

PVA 1.5 wt%

(d)

Perfume 1.0 wt%

(Example 5)

(a)

PEG / PPG-150/35 copolymer 94.8 wt%

(b1) 1.7% by weight of the following three components in total:

1,2-octanediol, ethylhexyl glycerin, methyl paraoxybenzoate

(b2) 2.0 wt% of the following three components in total:

Amino acids, collagen, water

(c)

PVA 0.5 wt%

(d)

Perfume 1.0 wt%

The cosmetic preparations for use in the shower preparations of Examples 2 to 5 were prepared in the same manner as in Example 1. In Examples 2 to 5, the test was carried out in the same manner as in Example 1 to confirm the swelling state in the cartridge 50.

In Example 2, no swelling by water was observed in any of the sensation during use of the shower, the moisturizing effect after drying, and the solid shape persistence, and good results were obtained in the same manner as in Example 1.

In Examples 3 to 5, slight swelling was observed as compared with Examples 1 and 2, but the swelling was slightly lighter than that of Comparative Examples 1 and 2.

(Examples 6 to 8)

In Examples 6 to 8, a shower cosmetic agent was prepared using only PEG / PPG copolymer.

That is, only PEG / PPG-150/35 copolymer was used in Example 6, PEG / PPG-200/70 copolymer was used in Example 7, By weight and a mixture of 50% by weight of PEG / PPG-200/70 copolymer and 50% by weight of PEG / PPG-200/70 copolymer.

The dissolution concentration (ppm) was determined from the weight loss (g) of the cosmetic for shower in the cartridge 50 in the same manner as in Example 1 with respect to the obtained cosmetic agent for shower.

As shown in Table 3, in Example 6, although the elution concentration of the cosmetic agent was slightly higher at 45 占 폚, it could be suppressed to a low concentration of 27.0 to 27.6 ppm at 35 占 폚 and 40 占 폚. In Example 7, the concentration of dissolution of the cosmetic agent was suppressed to a low concentration of 5.6 to 10.7 ppm regardless of the temperature. Also in Example 8, regardless of the temperature, the dissolution concentration of the cosmetic agent could be suppressed to a sufficiently low concentration of 13.1 to 23.0 ppm.

With respect to the shower preparations of Examples 6 to 8, the sensation (smooth feeling) during shower use, the moisturizing effect after drying and the solid shape persistence were measured in the same manner as in Example 1. As a result, the bodily sensation during use was almost equal to that in Example 1.

(Examples 9 to 13)

In Examples 9 to 13, a cosmetic agent for a shower was prepared by changing the content of PVA by using PEG / PPG copolymer and PVA.

That is, in Example 9, 93 wt% of PEG / PPG-150/35 copolymer and 7 wt% of PVA were used. In Example 10, 96.5 wt% of PEG / PPG-150 / 99 wt% of PEG / PPG-150/35 copolymer and 1 wt% of PVA were used in Example 11, 99.5 wt% of PEG / PPG-150/35 copolymer and 0.5 wt% of PVA were used in Example 12, In Example 13, 84% by weight of a PEG / PPG-150/35 copolymer and 16% by weight of PVA were used to prepare a cosmetic for shower.

The dissolution concentration (ppm) was determined from the weight loss (g) of the cosmetic agent for shower in the cartridge 50 in the same manner as in Example 1, and the results are shown in Table 4.

As shown in Table 4, in Examples 9 to 11 and Example 13, the elution concentration of the cosmetic agent was 6.1 to 43.3 ppm, and the concentration of the cosmetic agent was suppressed to be lower than that of Example 6 using only the PEG / PPG-150 / I could. In Example 12, the dissolution concentration of the cosmetic agent was 22.1 to 51 ppm, and the concentration could not be suppressed to a sufficiently low level as compared with Example 6. [

With respect to the cosmetic agents for shower of Examples 9 to 13, measurements were made in the same manner as in Example 1, with respect to the sensation (smooth feeling) during shower use, the moisturizing effect after drying and the solid shape persistence. As a result, in Examples 9 to 11, the bodily sensation during use was almost equal to that in Example 6. In Example 12, the moisturizing effect after use and the solid shape persistence were improved as compared with Example 6, and in Example 13, the solid shape persistence was improved as compared with Example 6.

Accordingly, the PVA blended in the cosmetic agent for a shower increases the solubility of the cosmetic agent for shower to water, particularly the solubility in warm water, while the content of PVA is preferably 0.7 to 15% by weight.

(Examples 14 and 15)

In Examples 14 and 15, a cosmetic agent for a shower was prepared using a PEG / PPG copolymer, PVA, and a cosmetic agent.

That is, in Example 14, 86% by weight of a PEG / PPG-150/35 copolymer, 13% by weight of PVA, and 1% by weight of cosmetics were used to prepare a cosmetic for shower. In Example 15, 86% by weight of PEG / PPG-200/70 copolymer, 13% by weight of PVA, and 1% by weight of cosmetics were used to prepare a cosmetic for shower. As a cosmetic agent, a mixture of propanediol (humectant), capryl glycol (preservative), ethylhexyl glycerin (deodorant, limiting agent) and methyl parahydroxybenzoate (preservative) was used.

With respect to the obtained cosmetic for shower, the dissolution concentration (ppm) was determined from the weight loss (g) of the cosmetic agent for shower in the cartridge 50 in the same manner as in Example 1. The results are shown in Table 5.

As shown in Table 5, in Example 14, the dissolution concentration of the cosmetic agent was 10.2 to 25.6 ppm and the concentration was sufficiently low as compared with Example 6 using only the PEG / PPG-150/35 copolymer. In Example 15, the dissolution concentration of the cosmetic agent was 3.1 to 10.3 ppm, which was lower than that of Example 7 using only the PEG / PPG-200/70 copolymer.

With respect to the shower preparations of Examples 14 and 15, the sensation (smooth feeling) during shower use, the moisturizing effect after drying and the solid shape persistence were measured in the same manner as in Example 1. As a result, in Examples 14 and 15, the feel during use and the moisturizing effect after use were equal to those in Examples 6 and 7, respectively, but the swelling properties were slightly increased and the solid shape persistence was lowered.

10 ... Shower head,
11 ... Head portion,
12 ... Grip portion,
51 ... Cartridge case,
51c ... The opening (inlet)
52 ... Duckville valve,
53 ... Inner pipe (waterway),
53c ... The communication hole (communicating portion)
54 ... A medicine container (cosmetic container),
100 ... Makeup for shower.

Claims

Polyoxyethylene glycol (hereinafter referred to as PEG) / polyoxypropylene glycol (hereinafter referred to as PPG) copolymer as an essential component.

The method according to claim 1,
A cosmetic for shower comprising polyvinyl alcohol (hereinafter referred to as PVA).

The method according to claim 1 or 2,
A cosmetic agent for a shower comprising a cosmetic agent.

The method according to any one of claims 1 to 3,
Wherein the PEG / PPG copolymer, PVA or cosmetic agent is uniformly dispersed and solid at room temperature.

The method according to any one of claims 1 to 4,
Wherein the weight ratio of PEG to PPG in the PEG / PPG copolymer is (150 to 200) / (35 to 70).

The method according to any one of claims 2 to 5,
Wherein the PVA is a partially saponified PVA having a saponification degree of from 86 to 90 mol%.

The method according to any one of claims 2 to 6,
Wherein the PVA content is 0.7 to 15% by weight.

Claims [1] A makeup cartridge accommodated in a shower head,
The cartridge includes an inlet for introducing cold or hot water,
A water passage communicating with the inlet,
And a cosmetic storage portion having a storage room for storing the cosmetic agent and having a communicating portion through which the cold water or hot water passing through the storage room and the water passage through the water passage can enter and leave the storage room,
Wherein the makeup agent for a shower according to any one of claims 1 to 7 is accommodated in the cosmetic container.

The method of claim 8,
A medicine container chamber is provided between the cartridge case and the inner tube, and a plurality of communication holes are formed in the inner wall of the inner tube, And a strainer is provided at the downstream end of the inner tube.

The method of claim 9,
Wherein the communicating hole is arranged over the entire axial length of the inner tube and a space is formed on the downstream side of the water-soluble medicament in the medicament-containing chamber while accommodating the solid water-

The method according to claim 9 or 10,
Wherein the strainer is extended toward the downstream side.

The method according to any one of claims 9 to 11,
Wherein a valve chamber communicating with the inside of the downstream side end portion of the inner tube is provided at the upstream side end portion of the cartridge case, and a check valve is provided in the valve chamber.

The method of claim 12,
Wherein the upstream end of the medicine storage chamber is disposed between the valve chamber and the cartridge case, and the periphery of the check valve is closed by the peripheral wall of the valve chamber.