Tablet Form Of Cosmetic Composition Obtained By Direct Tableting Without Molding Plate And Method For Preparing Same

Abstract

The present disclosure relates to a tablet-form cosmetic composition obtained by mixing a powder blend containing makeup powder and a viscosity modifier with an aqueous dispersion containing water, an alcohol, a polymer for lubricant and a polysaccharide for binder, granulating the resultant mixture, and shaping the resultant granules with a tablet press, and a method for preparing the same.

According to the present disclosure, there is provided a tablet-form cosmetic composition obtained by direct tablet pressing without using a shaping pan. The tablet-form cosmetic composition shows significantly improved aesthetic beauty and portability, while maintaining a cosmetic effect of the conventional powder- or cake-type powder cosmetic composition. In addition, the tablet-form cosmetic composition is shaped through granulation, and thus solves the problem of air-filling in the tablets upon pressing, shows a larger diameter as compared to the similar conventional particulate powder cosmetic composition, and allows various designs.

Claims

1. A method for preparing a tablet-form makeup cosmetic composition, which comprises the steps of: (a) mixing makeup powder with a viscosity modifier to provide a powder blend; (b) forming a granular cosmetic composition, while spraying an aqueous dispersion containing water, an alcohol, a polymer for lubricant and a polysaccharide for binder to the powder blend; (c) drying the granular cosmetic composition; and (d) carrying out direct tablet pressing of the dried granular cosmetic composition without using a shaping pan to obtain a tablet-form makeup cosmetic composition.

2. The method for preparing a tablet-form makeup cosmetic composition according to claim 1, wherein the makeup powder in (a) is at least one makeup powder selected from the group consisting of talc, mica, synthetic mica, sericite, silica, titanium dioxide, silicon powder, boron powder, zinc oxide, nylon powder, polymethacrylate powder, urethane powder, acrylate (co)polymer, polyethylene (co)polymer, organic pigments, inorganic pigments and nacreous pigments.

3. The method for preparing a tablet-form makeup cosmetic composition according to claim 1, wherein the viscosity modifier in (a) is a water soluble powdery viscosity modifier comprising at least one water soluble thickening agent selected from the group consisting of carrageenan, agar, gellan gum, xanthane gum, cellulose gum and starch; and/or at least one inorganic gelling agent selected from the group consisting of montmorillonite, hectorite, silicate, kolin and zeolite.

4. The method for preparing a tablet-form makeup cosmetic composition according to claim 1, wherein the powder blend in (a) optionally further comprises at least one oil phase selected from the group consisting of silicone oil, hydrocarbon oil, wax, natural oil and animal/vegetable liquid oil and fat.

5. The method for preparing a tablet-form makeup cosmetic composition according to claim 1, wherein the polymer for lubricant in (b) is a polymer functioning as a lubricant and selected from the group consisting of glycerin, sorbitol, mannitol, xylitol, glycols and polyhydric alcohols.

6. The method for preparing a tablet-form makeup cosmetic composition according to claim 1, wherein the polysaccharide for binder in (b) is a polysaccharide functioning as a binder and selected from the group consisting of cellulose, trehalose and glucose.

7. The method for preparing a tablet-form makeup cosmetic composition according to claim 1, the powder blend in (a) has a content of 65-90 wt % and the aqueous dispersion in (b) has a content of 10-35 wt %.

8. The method for preparing a tablet-form makeup cosmetic composition according to claim 1, wherein water and alcohol in (b) have a content of 15-25 wt %.

9. A tablet-form makeup cosmetic composition obtained by mixing the following ingredients and carrying out direct tablet pressing without any shaping pan: (a) 65-90 wt % of a powder blend containing makeup powder and a viscosity modifier; and (b) 10-35 wt % of aqueous dispersion containing water, an alcohol, a polymer for lubricant and a polysaccharide for binder.

10. The tablet-form makeup cosmetic composition according to claim 9, which is obtained by the method as defined in claim 1.

11. The tablet-form makeup cosmetic composition according to claim 9, which shows shaping stability while it has a diameter of 10 mm or more.

12. The tablet-form makeup cosmetic composition according to claim 9, which has shaping ability into various designs through tablet pressing using various shapes of frames.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0044] FIG. 1 is a photograph illustrating the angle of repose of the powder (Example 2) subjected to a granulation step as compared to the powder (Comparative Example 5) not subjected to a granulation step, wherein the granular powder is shown at the left side and the non-granular powder is shown at the right side.

[0045] FIG. 2 is a photograph illustrating the shaping stability of the powder (Example 2) subjected to a granulation step, after it is pressed into tablets with a flower-like three-dimensional design, as compared to the powder (Comparative Example 5) not subjected to a granulation step, wherein the granular powder is shown at the left side and the non-granular powder is shown at the right side.

[0046] FIG. 3 is a photograph illustrating the powder (Example 2) subjected to a granulation step, after it is pressed into tablets with a flower-like three-dimensional design, wherein the powder has a diameter of 20 mm as determined by the scale provided at the bottom.

DETAILED DESCRIPTION

[0047] Exemplary embodiments now will be described more fully hereinafter. This disclosure may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth therein.

EXAMPLES 1-5 AND COMPARATIVE EXAMPLES 1-5: PREPARATION OF COSMETIC COMPOSITIONS

[0048] Each of the cosmetic compositions of Examples 1-5 and Comparative Examples 1-5 was prepared according to the composition (cosmetic composition) as shown in the following Table 2 (unit: wt %). Comparative Example 1 is a cosmetic composition containing no viscosity modifier (Group 1-2) which is an essential ingredient according to the present disclosure. Comparative Example 2 is a cosmetic composition having a content of oil phase larger than 5 wt %, wherein the oil phase is an optional ingredient according to the present disclosure. Comparative Example 3 is a cosmetic composition containing no polymer for lubricant (Group 2-2) which is an essential ingredient according to the present disclosure. Comparative Example 4 is a cosmetic composition containing no polysaccharide for binder (Group 2-3) which is an essential ingredient according to the present disclosure. Comparative Example 5 is a cosmetic composition containing no water and ethanol (Group 2-1) which are essential ingredients according to the present disclosure.

TABLE-US-00002 TABLE 2 Exam- Exam- Exam- Exam- Com. Com. Com. Com. Com. Exam- Ingredients ple 1 ple 2 ple 3 ple 4 Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 ple 5 Group talc To To To To To To To To To To 1-1 100 100 100 100 100 100 100 100 100 100 Group mica 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 1-1 boron powder 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 calcium carbonate 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 nylon powder 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 4.0 polyethylene 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.5 powder metallic soap 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.0 titanium dioxide 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 5.0 zinc oxide 2.0 coloring pigment 3.5 3.5 3.5 3.5 3.5 3.5 3.5. 3.5 3.5 3.5 nacreous pigment 20 Group water soluble 6.0 5.0 10.0 5.0 5.0 5.0 5.0 8.0 1-2 thickening agent Group inorganic gelling 0.6 0.5 0.8 0.5 0.5 0.5 0.5 0.8 1-2 agent Group oil phase 2.0 2.0 2.0 2.0 5.5 2.0 2.0 2.0 5.0 1-3 Group ethanol 14.5 14.0 14.0 14.0 14.0 14.0 14.0 14.0 16 2-1 Group purified water 4.0 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 2-1 Group Polymer for 0.8 0.6 0.6 0.6 0.6 0.6 1.5 0.6 1.0 2-2 lubricant Group Polysaccharide 0.9 0.9 0.9 0.9 0.9 0.9 1.5 0.9 1.5 2-3 for binder

[0049] Particularly, in Group 1-2, xanthane gum, cellulose gum and starch were used as water soluble thickening agents, and hectorite and silicate were used as inorganic gelling agents. In addition, silicon oil such as dimethicone and phenyltrimethicone, ester oil such as triethylhexanoin and diisostearyl palmitate and a small amount of the other types of oil were used as oil.

[0050] Each of the compositions according to Examples 1-5 and Comparative Examples 1-5 was prepared by the method as described hereinafter.

[0051] 1) Group 1-1 to Group 1-3 were dispersed and mixed by using a Henschel mixer, atomizer or jet mill to form a powder blend. However, in Comparative Example 5, Group 2-2 and Group 2-3 were mixed totally to form a powder blend.

[0052] 2) Group 2-1 to Group 2-3 were dispersed and mixed by using an agi-mixer, homo-mixer and disper-mixer to form an aqueous dispersion. However, Comparative Example 5 was obtained without using this step.

[0053] 3) While the aqueous dispersion of 2) was applied to the powder blend of 1), granular content was prepared by using a granulation device, and then was dried partially or completely. However, Comparative Example 5 was obtained without using this granulation step.

[0054] 4) The content obtained from 3) was subjected to direct tablet pressing by using a tablet press in the absence of a pan (shaping pan or frame) to provide tables, and then a drying step was carried out. However, when the drying step was carried out completely in 3), the final drying step was not carried out.

[0055] Before the tablet pressing in 4), the powder subjected to the granulation step (Example 2) and the powder not subjected to the granulation step (Comparative Example 5) were accumulated individually, and each type of powder was determined for its angle of repose. As shown in FIG. 1, it can be seen that the powder subjected to the granulation step has a smaller angle of repose as compared to the powder not subjected to the granulation step, and thus shows a relatively small amount of voids in the powder.

TEST Example 1: EVALUATION FOR SHAPING CHARACTERISTICS (SHAPING STABILITY, DESIGN SHAPING ABILITY, SURFACE CAKING)

[0056] Each of the cosmetic compositions according to Examples 1-4 and Comparative Examples 1-5 was evaluated for the shaping characteristics. The evaluation items include shaping stability, design shaping ability and surface caking. The shaping ability was evaluated by measuring the number of dropping at which point the tablets were broken by 50% or more, when they were pressed into a size of 10 mm, 20 mm or 30 mm and dropped onto a 3 mm rubber plate from a height of 30 cm. Herein, the evaluation criteria are as follows: less than 3=very unstable; 3 or more and less than 5=unstable; 5 or more and less than 10=stable; and 10 or more=very stable. The design shaping ability was evaluated by measuring the number of dropping at which point the tablets were broken by 50% or more, when they were pressed into a flower-like shape with a diameter of 20 mm and dropped onto a 3 mm rubber plate from a height of 30 cm. Herein, the evaluation criteria are as follows: less than 3=very unstable; 3 or more and less than 5=unstable; 5 or more and less than 7=stable; and 7 or more very stable. The surface caking was evaluated by determining whether the tablets cause a greasy caking phenomenon without smooth surface application (=yes) or not (=no). However, when the samples have no value as particles or compositions (e.g. when the particles are broken right after the shaping or are not formed at all, or are not suitable for evaluation due to the shape of particles), the evaluation results are marked as unstable.

TABLE-US-00003 TABLE 3 Example Example Example Example Com. Ex. Com. Com. Com. Com. Example 1 2 3 4 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 5 Shaping 10 mm very very very very unstable very very unstable unstable very Stability stable stable stable stable stable unstable stable Shaping 20 mm stable very stable stable very very very very very stable Stability stable unstable stable unstable unstable unstable Shaping 30 mm stable stable stable stable very stable very very very stable Stability unstable unstable unstable unstable Design Shaping stable very stable stable very stable very very very stable Ability stable unstable unstable unstable unstable Surface Caking no no no no no yes yes no yes no

[0057] As can be seen from Table 3 (evaluation of shaping characteristics of Examples 1-5 and Comparative Examples 1-5), Comparative Examples 2, 3 and 5 cause a surface caking phenomenon, and thus has little or no value as cosmetic agents. In addition, Comparative Examples 1, 4 and 5 provide poor particle shaping ability and design shaping ability, even though they cause no surface caking phenomenon. Thus, it can be seen that the granulation process is effective for providing particle shaping ability and there is a need for using Group 1-2, Group 2-2 and Group 2-3 in an adequate range.

TEST EXAMPLE 2: EVALUATION OF APPLICABILITY (CAKING-FREE, SPREADABILITY, ADHESION, COLOR REALIZATION AND DUST FLYING-FREE CHARACTERISTICS)

[0058] Each of the cosmetic compositions according to Examples 1-5 and Comparative Examples 1-5 was evaluated for its applicability. Evaluation of the tablets obtained through tablet pressing of particles with a size of 20 mm were carried out, after they were used by 20 panels aged 25-40 on a scale of 10 points. The applicability test items include caking-free, spreadability, adhesion, color realization, dust flying-free and pay-off level characteristics.

TABLE-US-00004 TABLE 4 Example Example Example Example Com. Com. Com. Com. Com. Example 1 2 3 4 Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 5 Caking-free 5.0 4.9 5.0 4.9 4.9 0.2 0.8 4.7 1.5 4.9 Spreadability 4.2 4.0 4.1 3.9 3.6 1.0 2.3 3.7 3.4 4.1 Adhesion 4.0 4.2 3.9 4.1 1.2 4.0 1.2 1.3 1.5 3.5 Color realization 3.4 3.8 3.9 3.8 2.4 1.0 2.2 2.3 2.8 3.3 Dust flying-free 3.5 4.0 3.8 4.0 1.0 4.5 1.1 1.0 1.2 3.5 Pay-off level 4.5 4.6 4.4 4.5 1.5 0.8 1.0 1.5 1.5 4.2 * 5: very good, 4: good, 3: normal, 4: bad, 5: very bad

[0059] As can be seen from Table 4 (evaluation of applicability of Examples 1-5 and Comparative Examples 1-5), Comparative Example 1 provides poor results in terms of adhesion, color realization, dust flying-free and pay-off level characteristics; Comparative Example 2 provides poor results in terms of caking-free, spreadability, color realization and pay-off level characteristics; Comparative Examples 3 provides poor results in all terms; Comparative Example 4 provides poor results in terms of adhesion, color realization and dust flying-free characteristics; and Comparative Example 5 provides poor results in terms of caking-free, adhesion, dust flying-free and pay-off level characteristics. This results from the use of a specific ingredient in an excessive amount or the absence of a specific ingredient. The above results demonstrate the importance of the constitution and compositional ratio according to the present disclosure.

INDUSTRIAL APPLICABILITY

[0060] As can be seen from the foregoing, the tablet-form cosmetic composition obtained through direct tablet pressing without using a shaping pan according to the present disclosure provides significantly improved aesthetic beauty and portability, while maintaining the cosmetic effect of the conventional powder- or cake-type powder cosmetic composition. In addition, the tablet-form cosmetic composition according to the present disclosure is shaped through granulation to solve the problem of air-filling in the tablets upon the tablet pressing. Further, it is possible to provide particles with a larger diameter and various designs.