Carriers for impregnation with cosmetics

A composite fiber-based carrier with a sparse and dense fibrous structure addresses the inefficiencies of polyurethane foams by enabling easy loading and uniform extraction of cosmetics, enhancing usability and durability.

JP7811404B2Active Publication Date: 2026-02-05KK TAIKI
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Patent Information

Application Number
JP2024065085
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2018-06-15
Filing Date
2024-04-15
Publication Date
2026-02-05
Estimated Expiration
2039-06-13

AI Technical Summary

Technical Problem

Existing cosmetic carriers, particularly polyether-based polyurethane foams, struggle with efficiently loading and uniformly extracting liquid cosmetics due to their cellular structure, leading to trapped cosmetics and poor light resistance, and are prone to yellowing.

Method used

A carrier composed of composite fibers with a sparse fibrous substrate and a dense fibrous surface layer, featuring through holes and specific density and hole ratios, allows for easy loading and uniform extraction of cosmetics.

Benefits of technology

The carrier efficiently fills a large amount of cosmetic material and uniformly releases it, improving usability and maintaining cosmetic quality over time.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To provide a carrier for cosmetic impregnation, capable of easily filling a large amount of a cosmetic, and continuously almost evenly taking out the cosmetic from a cosmetic impregnated body, to provide a cosmetic impregnated body containing a cosmetic in the carrier for cosmetic impregnation, and to provide a cosmetic having the cosmetic impregnated body.SOLUTION: A carrier 1 for cosmetic impregnation is used for holding a cosmetic, and has through holes 2 reaching from a front face to a rear face of the carrier for cosmetic impregnation. A cosmetic having the carrier for cosmetic impregnation is also provided.SELECTED DRAWING: Figure 7
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Description

[Technical Field]

[0001] The present invention relates to a carrier for cosmetic impregnation. More specifically, the present invention relates to a carrier for cosmetic impregnation used to hold a cosmetic, a cosmetic-impregnated body containing a cosmetic in the carrier for cosmetic impregnation, and a cosmetic product having the cosmetic-impregnated body. The carrier for cosmetic impregnation of the present invention can be suitably used for, for example, a cosmetic-impregnated body impregnated with a cosmetic such as foundation, as well as puffs used for applying cosmetics to the skin, etc. [Background technology]

[0002] Liquid cosmetics such as foundation are stored in cosmetic containers such as compacts. The cosmetic container has a container body and a lid, and a cosmetic-impregnated body for holding the liquid cosmetic is stored in the container body. Soft sponges such as polyethylene foam, polyurethane foam, and rubber foam have traditionally been used for the cosmetic-impregnated body, but recently polyether-based urethane foam has been proposed as a cosmetic-holding carrier that can stably maintain the cosmetic (see, for example, Patent Document 1).

[0003] However, although polyether-based polyurethane foams allow liquid cosmetics present on their surface to be easily attached to puffs or the like, their cellular structure means that the liquid cosmetics are trapped within the bubbles and cannot be easily removed with a puff or the like. This has the disadvantage that a large amount of unused liquid cosmetics remains inside the polyether-based polyurethane foam. Furthermore, because polyurethane foams are foams that contain urethane bonds rather than fibers, they have poor light resistance and are prone to yellowing due to sunlight, etc., which may result in a decrease in their commercial value. Furthermore, depending on the viscosity of the liquid cosmetics, it may be difficult to fill polyurethane foams with liquid cosmetics.

[0004] In recent years, there has been a demand for the development of a carrier for impregnating with a cosmetic material that allows a large amount of cosmetic material to be easily loaded into the carrier and that allows the cosmetic material to be continuously and almost uniformly extracted from the cosmetic material-impregnated body into which the cosmetic material has been loaded. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 5465357 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in view of the above-mentioned conventional technology, and aims to provide a carrier for impregnating with a cosmetic material that can be easily filled with a large amount of cosmetic material and from which the cosmetic material can be continuously and almost uniformly extracted from the carrier; a cosmetic material-impregnated body containing a cosmetic material in the carrier for impregnating with a cosmetic material; and a cosmetic product having the cosmetic material-impregnated body. [Means for solving the problem]

[0007] The present invention provides (1) A liquid cosmetic whose viscosity is 20,000 mPa·s or more when measured at 25°C using a BM type viscometer. A carrier for holding a cosmetic material, the carrier for holding a cosmetic material being composed of a web sheet having through holes extending from the front surface to the back surface of the carrier for holding a cosmetic material, the diameter of the through holes is 0.5 to 5 mm, and the ratio of the area of ​​all the through holes to the surface area of ​​the carrier to be impregnated with a cosmetic preparation is 1 to 30%, a carrier for being impregnated with a cosmetic preparation, characterized in that the web sheet has a sparse fibrous substrate and a dense fibrous surface layer, and the dense fibrous layer is formed on the surface of the sparse fibrous substrate; (2) The density of the dense fibrous surface layer is 45 to 60 kg / m 3 and the density of the sparse fibrous substrate is 13-20 kg / m 3 The carrier for impregnation with a cosmetic preparation according to (1) above, (3 ) conversion The cosmetic impregnation carrier is made of composite fiber. are (1) having a three-dimensional structure or (2)The carrier for cosmetic preparation impregnation according to ( 4 ) The cosmetic preparation-impregnated carrier is composed of composite fibers and other fibers other than the composite fibers, and the other fibers are synthetic fibers. 3 1. A carrier for impregnating a cosmetic preparation according to any one of ( 5 ) The mass ratio of composite fiber to synthetic fiber (composite fiber / synthetic fiber) is 10 / 90 to 80 / 20. 4 ) A carrier for impregnating a cosmetic preparation according to ( 6 ) The composite fiber is a core-sheath type composite fiber ( 3 )~( 5 1. A carrier for impregnating a cosmetic preparation according to any one of ( 7 ) The fibers of the above (1) to (3) are arranged in the direction of the fiber length in the thickness direction of the carrier for impregnating a cosmetic preparation. 6 1. A carrier for impregnating a cosmetic preparation according to any one of ( 8 ) (1) to ( 7 10. A cosmetic-impregnated body containing a cosmetic in the carrier for cosmetic impregnation according to any one of the preceding items (1) to (4), and ( 9 ) the above ( 8 1. A cosmetic product comprising the cosmetic-impregnated body according to claim 1. Regarding. [Effects of the Invention]

[0008] The carrier for cosmetic preparation impregnation of the present invention has the excellent effect of being able to easily fill a large amount of cosmetic preparation and also being able to continuously and almost uniformly extract the cosmetic preparation from the cosmetic preparation-impregnated body into which the cosmetic preparation has been filled.

[0009] The cosmetic-impregnated body of the present invention has a cosmetic material contained in the carrier for cosmetic impregnation, and therefore has the excellent effect of allowing the cosmetic material to be extracted continuously and substantially uniformly from the cosmetic-impregnated body.

[0010] The cosmetic product of the present invention has the cosmetic-impregnated body, and therefore has the excellent effect of allowing the cosmetic to be extracted continuously and substantially uniformly from the cosmetic-impregnated body. [Brief explanation of the drawings]

[0011] [Figure 1] Graphs (a) to (h) show the measurement results of the degree of removal of the high-viscosity cosmetic material from the high-viscosity cosmetic material-impregnated bodies obtained in Examples 1 to 6, Example 8, and Comparative Example 1, respectively. [Figure 2] Graphs (a) to (g) show the measurement results of the degree of removal of the high-viscosity cosmetic material from the high-viscosity cosmetic material-impregnated bodies obtained in Examples 9 to 14 and Comparative Example 2, respectively. [Figure 3] Graphs (a) to (f) show the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 16 to 21, respectively. [Figure 4] Graphs (a) to (e) show the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 23 to 26 and Comparative Example 8, respectively. [Figure 5] Graphs (a) to (d) show the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 28 to 30 and Comparative Example 9, respectively. [Figure 6] Graphs (a) to (c) show the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 32 to 34, respectively. [Figure 7] 1(a) to 1(e) are schematic plan views each showing an embodiment of the surface design of a carrier for impregnation with a high-viscosity cosmetic preparation. [Figure 8] 1(a) to 1(c) are schematic plan views each showing one embodiment of the surface design of a carrier for being impregnated with a low-viscosity cosmetic preparation. DETAILED DESCRIPTION OF THE INVENTION

[0012] As described above, the carrier for being impregnated with a cosmetic material of the present invention is a carrier for being impregnated with a cosmetic material used to hold a cosmetic material, and is characterized by having through holes extending from the front surface to the back surface of the carrier for being impregnated with a cosmetic material.

[0013] The term "carrier for impregnation with a cosmetic preparation" refers to a carrier used for impregnating with a cosmetic preparation. The cosmetic-impregnated body of the present invention is characterized in that the carrier for impregnation with a cosmetic preparation contains a cosmetic preparation. The term "cosmetic-impregnated body" refers to an impregnated body in which the carrier for impregnation with a cosmetic preparation is impregnated with a cosmetic preparation.

[0014] The carrier for impregnation with a cosmetic material of the present invention can be used as a carrier for impregnation with a high-viscosity cosmetic material or a carrier for impregnation with a low-viscosity cosmetic material. A carrier for impregnation with a high-viscosity cosmetic material means a carrier for impregnation with a cosmetic material used to hold a high-viscosity cosmetic material. A carrier for impregnation with a low-viscosity cosmetic material means a carrier for impregnation with a cosmetic material used to hold a low-viscosity cosmetic material. In the present invention, the carrier for impregnation with a cosmetic material is a concept that includes both a carrier for impregnation with a high-viscosity cosmetic material and a carrier for impregnation with a low-viscosity cosmetic material.

[0015] The cosmetic preparation generally has a viscosity at 25°C of preferably 500 to 100,000 mPa·s, and more preferably 500 to 80,000 mPa·s.

[0016] In the present invention, a high-viscosity cosmetic refers to a cosmetic having a viscosity of 20,000 mPa·s or more at 25°C. From the viewpoints of easily loading a large amount of the high-viscosity cosmetic into a carrier for impregnation with the high-viscosity cosmetic and effectively achieving the ability to continuously and substantially uniformly remove the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated body, the lower limit of the viscosity of the high-viscosity cosmetic is preferably 20,000 mPa·s or more, more preferably 30,000 mPa·s or more, even more preferably 35,000 mPa·s or more, even more preferably 40,000 mPa·s or more, and even more preferably 50,000 mPa·s or more. From the viewpoints of easily loading a large amount of the high-viscosity cosmetic into a carrier for impregnation with the high-viscosity cosmetic and effectively achieving the ability to continuously and substantially uniformly remove the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated body, the upper limit of the viscosity of the high-viscosity cosmetic is preferably 100,000 mPa·s or less, more preferably 80,000 mPa·s or less. Therefore, the viscosity of the high-viscosity cosmetic at 25°C is preferably 20,000 to 100,000 mPa·s, more preferably 30,000 to 80,000 mPa·s, even more preferably 35,000 to 80,000 mPa·s, even more preferably 40,000 to 80,000 mPa·s, and even more preferably 50,000 to 80,000 mPa·s.

[0017] In the present invention, a low-viscosity cosmetic refers to a cosmetic among the above-mentioned cosmetics that has a viscosity of less than 20,000 mPa·s at 25° C. The lower limit of the viscosity of the low-viscosity cosmetic is preferably 500 mPa·s or more, more preferably 600 mPa·s or more, even more preferably 700 mPa·s or more, even more preferably 800 mPa·s or more, and even more preferably 900 mPa·s or more, from the viewpoint of enabling a large amount of the low-viscosity cosmetic to be easily loaded into a carrier for impregnation with the low-viscosity cosmetic, and effectively enabling the low-viscosity cosmetic to be continuously and almost uniformly extracted from the low-viscosity cosmetic-impregnated body. The upper limit of the viscosity of a low-viscosity cosmetic is preferably less than 20,000 mPa·s, more preferably 19,900 mPa·s or less, even more preferably 19,000 mPa·s or less, even more preferably 18,000 mPa·s or less, and even more preferably 17,000 mPa·s or less, from the viewpoints of easily loading a large amount of the low-viscosity cosmetic into a carrier for impregnation with the low-viscosity cosmetic and continuously and uniformly extracting the low-viscosity cosmetic from the low-viscosity cosmetic-impregnated body. Therefore, the viscosity of a low-viscosity cosmetic at 25°C is preferably 500 to less than 20,000 mPa·s, more preferably 600 to 1,990 mPa·s, even more preferably 700 to 19,000 mPa·s, even more preferably 800 to 18,000 mPa·s, and even more preferably 900 to 17,000 mPa·s.

[0018] The viscosity of the high-viscosity cosmetic and the low-viscosity cosmetic are values ​​measured at a temperature of 25°C using a BM type viscometer.

[0019] Examples of materials that can be used as the carrier for impregnation with a cosmetic preparation include composite fibers, rubber latex elastic foams, and polyurethane foams, but the present invention is not limited to these examples. Among these, composite fibers are preferred from the viewpoints of easily loading a large amount of cosmetic preparation into the carrier for impregnation with a cosmetic preparation and continuously and uniformly extracting the cosmetic preparation from the cosmetic preparation-impregnated body.

[0020] The carrier for being impregnated with a cosmetic preparation of the present invention preferably has a three-dimensional structure made of composite fibers, from the viewpoints of being able to easily fill a large amount of cosmetic preparation and to continuously and substantially uniformly extract the cosmetic preparation from the cosmetic preparation-impregnated body that has been filled with the cosmetic preparation. Examples of the shape of the carrier for being impregnated with a cosmetic preparation having a three-dimensional structure include a cylinder and a prism, but the present invention is not limited to these examples.

[0021] Examples of composite fibers include sheath-core composite fibers, side-by-side composite fibers, and islands-in-sea composite fibers, but the present invention is not limited to these examples. Among these composite fibers, sheath-core composite fibers are preferred from the viewpoint of efficiently integrating the contact areas between the constituent fibers, and side-by-side composite fibers are preferred when crimping is to be generated by heating.

[0022] Among the composite fibers, from the viewpoint of making it possible to easily fill the cosmetic material into the cosmetic-impregnated carrier and to continuously and uniformly extract the cosmetic material from the cosmetic-impregnated body, preferred are composite fibers that contain resin X and resin Y, which has a melting temperature higher than that of resin X, and in which the contact areas between the constituent fibers are integrated by resin X of the composite fiber.

[0023] The melting temperature of resin X constituting the composite fiber is preferably lower than the melting temperature of resin Y. From the viewpoint of preventing the composite fiber from becoming sagged, the melting temperature of resin X is preferably at least 20°C lower, and more preferably at least 30°C lower, than the melting temperature of resin Y. From the viewpoint of preventing the composite fiber from becoming sagged and firmly integrating the contact areas between the constituent fibers with resin X, the melting temperature of resin X is preferably 130 to 220°C.

[0024] In addition, when the melting temperatures of Resin X and Resin Y, and the melting temperature of the synthetic fiber described below cannot be measured clearly, the melting temperatures are replaced with softening temperatures.

[0025] Examples of resin X include polyester and thermoplastic elastomer, but the present invention is not limited to these examples.

[0026] Examples of polyesters include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyhexamethylene terephthalate, polytetramethylene terephthalate, poly1,4-dimethylcyclohexane terephthalate, and polyhydrolactone, but the present invention is not limited to these examples. These polyesters may be used alone or in combination of two or more. Among these thermoplastic polyesters, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, and polyhexamethylene terephthalate are preferred because of their excellent light resistance.

[0027] Examples of thermoplastic elastomers include polyester elastomers and polyurethane elastomers, but the present invention is not limited to these examples. Among these, polyester elastomers are preferred from the viewpoint of improving the light resistance of the carrier for cosmetic preparation impregnation.

[0028] Examples of polyester-based elastomers include polyester-based elastomers such as polyethylene terephthalate-based elastomers, and polyether-ester block copolymers having polyester as a hard segment and poly(alkylene oxide) glycol as a soft segment, but the present invention is not limited to these examples. Polyether-ester block copolymers can be prepared, for example, by reacting a dicarboxylic acid, a diol, and a poly(alkylene oxide) glycol.

[0029] Examples of the dicarboxylic acid include aromatic dicarboxylic acids such as o-phthalic acid, m-phthalic acid, terephthalic acid, naphthalene-2,6-dicarboxylic acid, naphthalene-2,7-dicarboxylic acid, diphenyl-4,4'-dicarboxylic acid, diphenoxyethanedicarboxylic acid, and sodium 3-sulfoisophthalate, alicyclic dicarboxylic acids such as 1,4-cyclohexanedicarboxylic acid, and aliphatic dicarboxylic acids such as succinic acid, oxalic acid, adipic acid, sebacic acid, dodecanediic acid, and dimer acid, but the present invention is not limited to these examples. These dicarboxylic acids may be used alone or in combination of two or more.

[0030] Examples of the diol include aliphatic diols such as ethylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol, 1,4-butanediol, neopentyl glycol, and decamethylene glycol, and alicyclic diols such as 1,1-cyclohexanedimethanol, 1,4-cyclohexanedimethanol, and tricyclodecanedimethanol, but the present invention is not limited to these examples. These diols may be used alone or in combination of two or more.

[0031] Examples of the poly(alkylene oxide) glycol include polyethylene glycol, poly(1,2-propylene oxide) glycol, poly(1,3-propylene oxide) glycol, poly(tetramethylene oxide) glycol, ethylene oxide-propylene oxide copolymer, and ethylene oxide-tetrahydrofuran copolymer, but the present invention is not limited to these examples. These poly(alkylene oxide) glycols may be used alone or in combination of two or more. The number average molecular weight of the poly(alkylene oxide) glycol is usually preferably about 400 to 5,000.

[0032] From the viewpoint of firmly integrating the contacting portions of the constituent fibers with the resin X, the intrinsic viscosity of the polyester elastomer is preferably 0.8 to 1.7, and more preferably 0.9 to 1.5.

[0033] The polyurethane elastomer can be obtained, for example, by polymerizing a polyol and a diisocyanate in the presence of a chain extender.

[0034] Examples of polyols include polyols having a molecular weight of about 500 to 6000, such as dihydroxypolyether, dihydroxypolyester, dihydroxypolycarbonate, and dihydroxypolyesteramide, but the present invention is not limited to these examples. These polyols may be used alone or in combination of two or more.

[0035] Examples of diisocyanates include diphenylmethane diisocyanate, tolylene diisocyanate, isophorone diisocyanate, hydrogenated diphenylmethane diisocyanate, xylylene diisocyanate, diisocyanate methyl caproate, hexamethylene diisocyanate, and other diisocyanates having a molecular weight of 500 or less, but the present invention is not limited to these examples. These diisocyanates may be used alone or in combination of two or more.

[0036] Examples of chain extenders include ethylene glycol, amino alcohol, bishydroxyethoxybenzene, 1,4-butanediol, etc., but the present invention is not limited to these examples. These chain extenders may be used alone or in combination of two or more.

[0037] From the viewpoint of firmly integrating the contacting portions of the constituent fibers with the resin X, a polyether polyester having polybutylene terephthalate as a hard segment and polyoxybutylene glycol as a soft segment can be used as the thermoplastic elastomer.

[0038] In the hard segment, a portion of the acid component used as a raw material for polybutylene terephthalate may be substituted with an acid other than terephthalic acid, such as a dicarboxylic acid or an oxycarboxylic acid, within the scope of not interfering with the object of the present invention. Also, a portion of butylene glycol used as a raw material for polyoxybutylene glycol may be substituted with another polyhydric alcohol within the scope of not interfering with the object of the present invention.

[0039] In the soft segment, a part of the butylene glycol used as a raw material for polyoxybutylene glycol may be substituted with other polyhydric alcohol within the range that does not impair the object of the present invention.

[0040] Resin Y may be, for example, a thermoplastic polyester, but the present invention is not limited to this example.

[0041] Examples of thermoplastic polyesters include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyhexamethylene terephthalate, polytetramethylene terephthalate, poly1,4-dimethylcyclohexane terephthalate, and polyhydrolactone, but the present invention is not limited to these examples. These thermoplastic polyesters may be used alone or in combination of two or more. Among these thermoplastic polyesters, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, and polyhexamethylene terephthalate are preferred because of their excellent light resistance.

[0042] From the viewpoint of preventing the composite fiber from becoming sagged, the melting temperature of resin Y is preferably at least 20°C higher, and more preferably at least 30°C higher, than the melting temperature of resin X. From the viewpoint of preventing the composite fiber from becoming sagged and firmly integrating the contact areas between the constituent fibers with resin X, the melting temperature of resin Y is preferably 150 to 270°C, and more preferably 160 to 270°C.

[0043] From the viewpoints of improving the light resistance of the composite fiber, preventing the composite fiber from becoming worn, and firmly integrating the contact areas between the constituent fibers with the resin X, it is preferable that the resin X is a polyester or a polyester-based elastomer and the resin Y is a thermoplastic polyester.

[0044] From the viewpoint of preventing the composite fiber from becoming worn and firmly integrating the contact areas between the constituent fibers with resin X, it is preferable that 30 to 70% of the surface area of ​​the composite fiber is composed of resin X and 70 to 30% of the surface area of ​​the composite fiber is composed of resin Y.

[0045] The composite fiber contains resin X and resin Y having a higher melting temperature than resin X, but may contain resins other than resin X and resin Y as long as the object of the present invention is not impaired.

[0046] The composite fiber contains resin X and resin Y. When the composite fiber is a core-sheath type composite fiber or a side-by-side type composite fiber, two types of resins, resin X and resin Y, are usually used. When the composite fiber is an islands-in-sea type composite fiber, two to four types of resins including resin X and resin Y, preferably two or three types of resins, and more preferably two types of resins, resin X and resin Y, are usually used.

[0047] In the case of core-sheath composite fibers, from the viewpoint of firmly integrating the contact areas between the constituent fibers with resin X, it is preferable to use resin Y as the core component and resin X as the sheath component.

[0048] In sheath-core composite fibers, it is preferable that the core component is not exposed on the surface of the composite fiber. It is more preferable that the center of the core component in the fiber diameter direction coincides with the center of the sheath component in the fiber diameter direction. The sheath-core composite fiber may have a concentric core-sheath structure, or an eccentric core-sheath structure. Composite fibers having an eccentric core-sheath structure are suitable for applications requiring crimping, as they undergo crimping upon heating.

[0049] Examples of the cross-sectional shape of the core-sheath type composite fiber include a circle, an ellipse, an oval, a triangle, a rectangle, and other polygonal shapes, but the present invention is not limited to these examples. Among these shapes, a circle is preferred.

[0050] The volume ratio of the core component to the sheath component of the core-sheath composite fiber (core component:sheath component) is preferably 30:70 to 70:30, from the viewpoints of improving the single fiber strength and firmly integrating the contact areas between the constituent fibers with the resin X.

[0051] When the composite fiber is a sheath-core composite fiber, the composite fiber can be produced, for example, by heating and melting resin Y and resin X, which respectively constitute the core component and sheath component, introducing them into a composite spinning apparatus for producing a sheath-core composite fiber, and extruding and spinning them through a sheath-core composite nozzle. When heating and melting resin X and resin Y, for example, a single-screw extruder, a twin-screw extruder, or a kneader can be used. Furthermore, as the sheath-core composite nozzle, for example, a sheath-core composite nozzle in which the nozzle holes are arranged in a staggered or annular arrangement can be used.

[0052] Next, the spun core-sheath type composite fiber can be cooled and solidified by, for example, blowing cold air onto the core-sheath type composite fiber.

[0053] From the viewpoint of obtaining a carrier for impregnating with a cosmetic preparation that can efficiently remove the cosmetic preparation from the cosmetic preparation-impregnated body and has excellent mechanical strength, the fineness of the composite fiber is preferably 0.5 to 15 denier, and more preferably 1 to 10 denier. Note that, in the present invention, the fineness of the fiber means the mass (g) of the fiber (filament) per 9000 m of fiber length.

[0054] The fiber length of the composite fiber is preferably about 20 to 150 mm, from the viewpoint of obtaining a carrier for being impregnated with a cosmetic material that can efficiently remove the cosmetic material from the cosmetic material-impregnated body and has excellent mechanical strength.

[0055] The composite fiber may be subjected to processing such as antibacterial processing, antifungal processing, etc., as necessary, from the viewpoint of preserving the cosmetics used in the cosmetic-impregnated carrier. Various methods can be used for these processing, and the present invention is not limited to such methods.

[0056] The carrier for being impregnated with a cosmetic preparation may be composed of only composite fibers, or may be composed of composite fibers and fibers other than the composite fibers.

[0057] Examples of other fibers include natural fibers such as cotton, hemp, and silk, regenerated fibers such as rayon, and synthetic fibers, but the present invention is not limited to these examples. Among these other fibers, synthetic fibers are preferred from the viewpoint of obtaining a carrier for cosmetic impregnation that can efficiently remove the cosmetic from the cosmetic-impregnated body and has excellent mechanical strength.

[0058] Examples of synthetic fibers include polyester fibers such as polyethylene terephthalate fibers, polybutylene terephthalate fibers, and polytrimethylene terephthalate fibers; polyvinyl chloride fibers, polyvinylidene chloride fibers, polypropylene fibers, polyvinyl alcohol fibers; polyamide fibers such as nylon 6; polyimide fibers; polyamideimide fibers; and cellulose acetate fibers, but the present invention is not limited to these examples. These fibers may be used alone or in combination of two or more. Among these synthetic fibers, polyester fibers and polyamide fibers are preferred, and polyester fibers are more preferred, from the viewpoint of efficiently removing a cosmetic from a cosmetic-impregnated body and obtaining a carrier for cosmetic impregnation that has excellent light resistance.

[0059] From the viewpoint of preserving the cosmetics used in the cosmetic-impregnated carrier, the synthetic fibers may be subjected to processing such as antibacterial processing, antifungal processing, etc., as necessary. Various methods can be used for these processing, and the present invention is not limited to such methods.

[0060] From the viewpoint of preventing the composite fiber from becoming sagged, the melting temperature of the synthetic fiber is preferably at least 20°C higher, and more preferably at least 30°C higher, than the melting temperature of resin X. From the viewpoint of preventing the composite fiber from becoming sagged and efficiently heat-fusing the composite fiber and the synthetic fiber at their intersections, the melting temperature of the synthetic fiber is preferably 150 to 270°C, and more preferably 160 to 270°C.

[0061] The fineness of the synthetic fibers is preferably 0.5 to 15 denier, and more preferably 1 to 10 denier, from the viewpoint of obtaining a carrier for impregnating with a cosmetic material that can efficiently remove the cosmetic material from the cosmetic material-impregnated body.

[0062] The fiber length of the synthetic fiber is preferably about 20 to 150 mm from the viewpoint of obtaining a carrier for being impregnated with a cosmetic material that can efficiently remove the cosmetic material from the cosmetic material-impregnated body and has excellent mechanical strength.

[0063] In the present invention, from the viewpoint of obtaining a carrier for cosmetic impregnation that can efficiently remove the cosmetic from the cosmetic-impregnated body and has excellent light resistance, it is preferable to use a composite fiber in combination with a synthetic fiber as the other fiber, it is more preferable to use a composite fiber in combination with a polyester fiber or a polyamide fiber as the synthetic fiber, and it is even more preferable to use a composite fiber in combination with a polyester fiber.

[0064] The mass ratio of the composite fiber to the synthetic fiber (composite fiber / synthetic fiber) is preferably 10 / 90 to 100 / 0, and more preferably 30 / 70 to 80 / 20, from the viewpoint of obtaining a carrier for impregnating with a cosmetic material that can efficiently heat-fuse the composite fiber and the synthetic fiber at their intersections and efficiently remove the cosmetic material from the cosmetic material-impregnated body.

[0065] The carrier for impregnation with a cosmetic preparation can be produced, for example, as follows. Although the following shows an example in which composite fibers and synthetic fibers are used in combination, composite fibers alone may be used, or composite fibers may be used in combination with fibers other than synthetic fibers.

[0066] First, the composite fiber and the synthetic fiber are defibrated, weighed to have a predetermined ratio, and mixed to have a uniform composition to form a web.

[0067] The thickness of the formed web is preferably adjusted appropriately depending on the size of the carrier to be impregnated with a cosmetic preparation in which the web is used.

[0068] Next, for example, the web is sandwiched between two flat plates, and if necessary, pressed to a predetermined thickness, and in this state, the web is heated at a temperature equal to or higher than the melting temperature of resin X constituting the composite fibers contained in the web but lower than the melting temperature of resin Y and synthetic fibers constituting the composite fibers, to melt resin X, and a web sheet is obtained by fusion-bonding the contacting portions of the fibers containing the composite fibers and synthetic fibers with the molten resin X. At this time, if necessary, the web sheet obtained as described above is placed in a mold so as to have a predetermined density, and the web sheet is heated in the same manner as described above to melt resin X, thereby fusing the intersections of the constituent fibers with the molten resin X, and forming fused portions of lumps (amoeba-like) made of resin X at the intersections.

[0069] In addition, when a web sheet is produced by mixing composite fibers and synthetic fibers and laminating the composite fibers and synthetic fibers so that both fibers are parallel to the fiber length direction, when the web sheet is stretched in the thickness direction, stripes appear, indicating that both composite fibers and synthetic fibers are parallel to the fiber length direction. These stripes serve as an indicator that the web sheet was produced by the above-mentioned method.

[0070] Next, the web sheet obtained above is cut into a desired size and shape, thereby obtaining a carrier for being impregnated with a cosmetic preparation.

[0071] The size and shape of the carrier to be impregnated with a cosmetic preparation cannot be determined in general terms because they differ depending on the intended use of the carrier to be impregnated with a cosmetic preparation. Therefore, it is preferable to adjust them appropriately depending on the intended use of the carrier to be impregnated with a cosmetic preparation.

[0072] An example of a carrier for impregnating with a cosmetic preparation is a cylindrical carrier for impregnating with a planar shape of about 3 to 15 cm in diameter and about 0.5 to 5 cm in thickness. The carrier for impregnating with a cosmetic preparation can be suitably used as a carrier for impregnating with a cosmetic preparation for holding a cosmetic preparation such as foundation.

[0073] The density of the carrier to be impregnated with a cosmetic preparation cannot be determined in general because it differs depending on the intended use of the carrier, but is preferably 6 to 50 kg / m 3 , more preferably 6 to 30 kg / m 3 is.

[0074] In order to prevent the carrier for cosmetic preparation from becoming worn out during use, it is preferable that a web sheet be used in which the composite fibers and synthetic fibers are laminated so that their fiber length direction is parallel, and that the fibers are aligned in the fiber length direction along the thickness direction of the carrier for cosmetic preparation.

[0075] In the carrier for cosmetic impregnation, when the composite fiber contains resin X and resin Y having a melting temperature higher than that of resin X, and the contact areas between the constituent fibers are integrated by resin X of the composite fiber, voids exist between the fibers and these voids are fixed. Therefore, in contrast to rubber latex elastic foam and polyurethane foam, the cosmetic can be efficiently removed from the cosmetic-impregnated body through the voids between the fibers, thereby reducing the rate at which the cosmetic remains after use.

[0076] Furthermore, when the constituent fibers that make up the carrier for cosmetic impregnation include composite fibers in which resin X is polyester or a polyester-based elastomer and resin Y is a thermoplastic polyester, and polyester monofilaments are used as fibers other than the composite fibers, light resistance is effectively exhibited.

[0077] Furthermore, when the composite fiber of the carrier for cosmetic impregnation contains resin X and resin Y having a melting temperature higher than that of resin X, and the contact points between the constituent fibers are integrated by resin X of the composite fiber, the carrier has excellent retention (non-adsorption) of the ultraviolet absorber contained in the cosmetic, and further has excellent durability since it is less likely to wear down with repeated use.

[0078] From the viewpoint of preventing a large amount of cosmetic material from being removed at the start of use, it is preferable that the carrier for cosmetic material impregnation has a dense fibrous surface layer and a sparse fibrous base material, and that the dense fibrous surface layer and the sparse fibrous base material are integrated together.

[0079] A carrier for impregnation with a cosmetic preparation, in which a dense fibrous surface layer and a sparse fibrous substrate are integrated, can be obtained, for example, by pressing a web sheet, heating the pressed surface in a compressed state, forming a dense fibrous layer on the surface of the web sheet, and then cooling and depressurizing. The density of the dense fibrous surface layer can be controlled by appropriately adjusting the heating temperature, pressing time, and pressing force when pressing the web sheet. Here, integration of the dense fibrous surface layer with the sparse fibrous substrate means directly forming the dense fibrous surface layer on the surface of the sparse fibrous substrate.

[0080] The heating temperature when the web sheet is pressed and the pressed surface is heated in a compressed state is preferably 150°C or higher from the viewpoint of forming a dense surface structure. The heating time and pressing force can be appropriately adjusted so that the web sheet has a predetermined thickness. When the web sheet is pressed and the pressed surface is heated in a compressed state, for example, by heating for several minutes at a temperature equal to or higher than the melting temperature of the resin constituting the web sheet, a dense fibrous surface layer can be formed.

[0081] The thickness of the dense fibrous surface layer is preferably about 50 μm to 5 mm from the viewpoint of preventing the cosmetic material absorbed into the cosmetic-impregnated body from being removed in large quantities at once at the beginning of use. The thickness of the sparse fibrous base material is preferably about 500 μm to 10 cm, more preferably 5 to 20 mm, from the viewpoint of increasing the amount of cosmetic material absorbed into the cosmetic-impregnated carrier.

[0082] In the carrier for impregnating a cosmetic preparation, the density of the dense fibrous surface layer is set to 45 to 60 kg / m in order to prevent a large amount of the cosmetic preparation taken into the carrier for impregnating a cosmetic preparation from being removed at once at the beginning of use. 3 The density of the sparse fibrous substrate is about 13 to 20 kg / m 3 It is preferable that the degree of

[0083] Furthermore, the value obtained by dividing the density of the dense fibrous surface layer by the density of the sparse fibrous base material (hereinafter referred to as the "compression ratio") is preferably 2 to 4, and more preferably 2.5 to 3.5, from the viewpoint of preventing a large amount of the cosmetic material taken up inside the carrier for cosmetic impregnation from being removed all at once at the beginning of use.

[0084] The air resistance of the dense fibrous surface layer of the carrier to be impregnated with a cosmetic preparation is preferably 0.0125 to 0.0275 kPa·s / m, and more preferably 0.0145 to 0.0255 kPa·s / m, from the viewpoint of preventing a large amount of the cosmetic preparation taken into the carrier to be impregnated with a cosmetic preparation from being removed all at once during the initial period of use.

[0085] The carrier for impregnation with a cosmetic preparation of the present invention can be suitably used as a cosmetic-impregnated body by retaining a cosmetic preparation in the carrier for impregnation with a cosmetic preparation. The cosmetic-impregnated body of the present invention can be suitably used for various cosmetic products.

[0086] The carrier for being impregnated with a cosmetic preparation of the present invention has a plurality of through holes extending from its front surface to its back surface. Because the carrier for being impregnated with a cosmetic preparation of the present invention has a plurality of through holes, it is possible to easily fill the carrier for being impregnated with a large amount of cosmetic preparation, and it is also possible to continuously and almost uniformly extract the cosmetic preparation from the cosmetic-impregnated body in which the cosmetic preparation has been filled in the carrier for being impregnated with a cosmetic preparation.

[0087] The pore size (diameter) of the through-holes in the carrier for impregnation with a high-viscosity cosmetic is preferably 0.5 mm or more, more preferably 1 mm or more, from the viewpoints of easily filling the carrier for impregnation with a large amount of high-viscosity cosmetic, continuously and substantially uniformly releasing the high-viscosity cosmetic from the impregnated body, and improving the visibility of the design formed by the through-holes; and from the viewpoints of easily filling the carrier for impregnation with a large amount of high-viscosity cosmetic, and continuously and substantially uniformly releasing the high-viscosity cosmetic from the impregnated body, the pore size (diameter) is preferably 5 mm or less, more preferably 3 mm or less, and even more preferably 2.5 mm or less. Therefore, the pore size of the through-holes in the carrier for impregnation with a high-viscosity cosmetic is preferably 0.5 to 5 mm, more preferably 0.5 to 3 mm, and even more preferably 1 to 2.5 mm.

[0088] The hole size (diameter) of the through-holes in the carrier for impregnating a low-viscosity cosmetic is preferably 0.1 mm or more, more preferably 0.2 mm or more, from the viewpoints of easily filling the carrier for impregnating a low-viscosity cosmetic in large quantities, continuously and substantially uniformly releasing the low-viscosity cosmetic from the low-viscosity cosmetic-impregnated body, and improving the visibility of the design formed by the through-holes; and from the viewpoints of easily filling the carrier for impregnating a low-viscosity cosmetic in large quantities, and continuously and substantially uniformly releasing the low-viscosity cosmetic from the low-viscosity cosmetic-impregnated body, the hole size (diameter) is preferably 0.6 mm or less, more preferably 0.5 mm or less. Therefore, the hole size of the through-holes in the carrier for impregnating a low-viscosity cosmetic is preferably 0.1 to 0.6 mm, more preferably 0.2 to 0.5 mm.

[0089] The shape of the opening of the through hole is generally circular, but the present invention is not limited to circular shapes and may be elliptical, triangular, rectangular, hexagonal, star-shaped or other polygonal shapes. The multiple through holes may have the same opening shape or different opening shapes. When the shape of the through hole is a shape other than circular, the diameter of the through hole means the length of the longest diagonal line of the shape of the through hole.

[0090] The plurality of through holes may have the same hole diameter or may have different hole diameters.

[0091] In a carrier for impregnating a high-viscosity cosmetic preparation, the ratio of the area of ​​all through holes to the surface area of ​​the carrier for impregnating a high-viscosity cosmetic preparation is preferably 1 to 30%, more preferably 3 to 25%, and even more preferably 5 to 20%, from the viewpoints of easily filling a large amount of high-viscosity cosmetic preparation into the carrier for impregnating a high-viscosity cosmetic preparation, continuously and almost uniformly extracting the high-viscosity cosmetic preparation from the high-viscosity cosmetic preparation-impregnated body, and improving the visibility of the design formed by the through holes. The surface of the carrier for impregnating a high-viscosity cosmetic preparation is the surface on which the through holes are formed.

[0092] For example, if the diameter of the surface of a carrier for impregnating a high-viscosity cosmetic preparation is 5 cm, the surface area of ​​the carrier for impregnating a high-viscosity cosmetic preparation is approximately 19.6 cm 2 When the ratio of the area of ​​all the through holes to the surface area of ​​the carrier for impregnation with a high-viscosity cosmetic preparation is 20%, the area occupied by all the through holes is approximately 3.9 cm 2 When the diameter of the through-holes in the carrier for impregnation with a high-viscosity cosmetic preparation is 2 mm, the area of ​​one through-hole is approximately 0.03 cm 2 Therefore, the number of through-holes on the surface of the carrier for impregnation with a high-viscosity cosmetic preparation is approximately 130 (3.9 / 0.03).

[0093] In a carrier for being impregnated with a low-viscosity cosmetic preparation, the ratio of the area of ​​all through holes to the surface area of ​​the carrier for being impregnated with a low-viscosity cosmetic preparation is preferably 0.1 to 15%, more preferably 0.2 to 13%, and even more preferably 0.5 to 10%, from the viewpoints of easily filling the carrier for being impregnated with a large amount of low-viscosity cosmetic preparation, continuously and almost uniformly extracting the low-viscosity cosmetic preparation from the low-viscosity cosmetic preparation-impregnated body, and improving the visibility of the design formed by the through holes. The surface of the carrier for being impregnated with a low-viscosity cosmetic preparation is the surface on which the through holes are formed.

[0094] For example, if the diameter of the surface of a carrier for impregnating a low-viscosity cosmetic preparation is 5 cm, the surface area of ​​the carrier for impregnating a low-viscosity cosmetic preparation is approximately 19.6 cm 2 When the ratio of the area of ​​all the through holes to the surface area of ​​the carrier for impregnation with a low-viscosity cosmetic preparation is 5%, the area occupied by all the through holes is approximately 0.98 cm 2 When the diameter of the through-hole is 0.5 mm, the area of ​​one through-hole is approximately 0.0020 cm 2 Therefore, the number of through-holes on the surface of the carrier for impregnation with a low-viscosity cosmetic preparation is approximately 490 (0.98 / 0.0020).

[0095] The number of through holes provided on the surface of the carrier to be impregnated with a cosmetic preparation cannot be determined in general terms, as it varies depending on the surface area of ​​the carrier to be impregnated with a cosmetic preparation, etc. It is generally preferable to adjust the number of through holes so that the ratio of the area of ​​all through holes to the surface area of ​​the carrier to be impregnated with a cosmetic preparation and the diameter of the through holes are within the above-mentioned ranges.

[0096] The arrangement of the multiple through holes on the surface of the carrier for being impregnated with a cosmetic preparation is arbitrary. From the viewpoints of easily filling the carrier for being impregnated with a large amount of cosmetic preparation and continuously and uniformly extracting the cosmetic preparation from the cosmetic-impregnated body, the through holes are preferably formed in a pattern of multiple concentric circles or a grid extending from the center of the carrier for being impregnated with a cosmetic preparation. The through holes may also be formed so as to depict designs such as letters, logos, figures, and patterns on the surface of the carrier for being impregnated with a cosmetic preparation.

[0097] One embodiment of the surface design of a carrier for impregnation with a high-viscosity cosmetic preparation is shown in Figure 7. Figures 7(a) to 7(e) are each schematic plan views showing one embodiment of the surface design of a carrier for impregnation with a high-viscosity cosmetic preparation, but the present invention is not limited to these embodiments. Figure 8 shows one embodiment of the surface design of a carrier for impregnation with a low-viscosity cosmetic preparation. Figures 8(a) to 8(c) are each schematic plan views showing one embodiment of the surface design of a carrier for impregnation with a low-viscosity cosmetic preparation, but the present invention is not limited to these embodiments. As shown in Figures 7 and 8, the carrier for impregnation with a high-viscosity cosmetic preparation 1 and the carrier for impregnation with a low-viscosity cosmetic preparation 3 each have through-holes 2 or 4 that form the desired design.

[0098] Examples of methods for forming through holes in the surface of a carrier to be impregnated with a cosmetic preparation include a method in which a laser beam is applied to the surface of the carrier to be impregnated with a cosmetic preparation to form through holes that penetrate from the surface to the back surface of the carrier to be impregnated with a cosmetic preparation, and a method in which a Thomson die is used to punch out the surface of the carrier to be impregnated with a cosmetic preparation to form through holes that penetrate from the surface to the back surface of the carrier to be impregnated with a cosmetic preparation, but the present invention is not limited to these examples.

[0099] The carrier for being impregnated with a cosmetic material of the present invention formed as described above can be easily loaded with a large amount of a cosmetic material.

[0100] The cosmetic-impregnated body of the present invention comprises a cosmetic material contained in the carrier for impregnation with a cosmetic material of the present invention. Because the cosmetic-impregnated body of the present invention uses the carrier for impregnation with a cosmetic material of the present invention, the cosmetic material can be extracted continuously and almost uniformly.

[0101] The cosmetic-impregnated body of the present invention can be used as a high-viscosity cosmetic-impregnated body or a low-viscosity cosmetic-impregnated body. Soaking The body refers to a cosmetic-impregnated body containing a high-viscosity cosmetic. Soaking The body contains a cosmetic-containing material containing a low-viscosity cosmetic. Soaking In the present invention, the term "body impregnated with a cosmetic material" is a concept that includes both bodies impregnated with a high-viscosity cosmetic material and bodies impregnated with a low-viscosity cosmetic material.

[0102] Examples of cosmetics that can be used in the cosmetic-impregnated body include foundation, concealer, highlighter, color control, makeup base, eye shadow, eyeliner, mascara, blush, face powder, eyebrow pencil, cleansing cream, cleansing milk, cleansing liquid, facial cleanser, facial cleanser, massage cream, cold cream, vanishing cream, skin cream, skin gel, emulsion, lotion, beauty serum, various lotions, sunscreen, body cream, body oil, hair shampoo, hair rinse, hair conditioner, hair treatment, hair liquid, and hair tonic, but the present invention is not limited to these examples. Among these cosmetics, liquid cosmetics are preferred from the viewpoint of continuously and uniformly extracting the cosmetic from the cosmetic-impregnated body.

[0103] The amount of high-viscosity cosmetic to be used in a high-viscosity cosmetic-impregnated body cannot be determined in general terms because it differs depending on the type of carrier for impregnating the high-viscosity cosmetic. For example, if the carrier for impregnating the high-viscosity cosmetic is a liquid foundation, approximately 10 to 20 g of liquid foundation with a viscosity of 20,000 mPa·s at 25°C can be used in a high-viscosity cosmetic-impregnated body that is 5 cm in diameter and 1.5 cm thick.

[0104] The amount of low-viscosity cosmetic to be used in a low-viscosity cosmetic-impregnated body cannot be determined in general terms because it differs depending on the type of carrier for impregnating the low-viscosity cosmetic. For example, if the carrier for impregnating the low-viscosity cosmetic is a liquid foundation, approximately 10 to 20 g of liquid foundation with a viscosity of 10,000 mPa·s at 25°C can be used in a low-viscosity cosmetic-impregnated body that is 5 cm in diameter and 1.5 cm thick.

[0105] The cosmetic of the present invention comprises the cosmetic-impregnated body of the present invention. Because the cosmetic of the present invention comprises the cosmetic-impregnated body, the cosmetic can be continuously and substantially uniformly extracted from the cosmetic-impregnated body. The cosmetic of the present invention may have a storage section for storing the cosmetic-impregnated body, and the cosmetic-impregnated body of the present invention may be stored in the storage section. Examples of the cosmetic include a cosmetic compact, but the present invention is not limited to only these examples. [Example]

[0106] Next, the present invention will be described in more detail based on examples, but the present invention is not limited to these examples.

[0107] Manufacturing Example 1 A core-sheath composite fiber (core component: polyethylene terephthalate, sheath component: thermoplastic polyethylene terephthalate, fineness: 6 denier) and polyester fiber (resin: polyethylene terephthalate, fineness: 3 denier) were blended in a mass ratio of 70:30 so that the fibers were parallel to each other. The sheath component was heated and melted while being pressed to produce a carrier for impregnating high-viscosity cosmetics. Sample A (density: 18.0 kg / m) was cut from the carrier for impregnating high-viscosity cosmetics, and was cylindrical in shape with a three-dimensional structure, approximately 5 cm in diameter and 1 cm thick. 3 ) was obtained.

[0108] When the flat surface of Sample A obtained above was stretched in the direction in which the fibers ran parallel, stripes due to the parallel alignment of the fibers were observed, but no stripes were observed when it was stretched in the direction perpendicular to that direction.

[0109] Next, the plane and side of the obtained sample A were observed with an optical microscope. As a result, it was confirmed that the fiber density of the side of sample A was higher than that of the plane, and that clump-like (amoeba-like) fused parts were formed at the contact points between the constituent fibers.

[0110] Manufacturing Example 2 A core-sheath composite fiber (core component: polyethylene terephthalate, sheath component: thermoplastic polyethylene terephthalate, fineness: 6 denier) and polyester fiber (resin: polyethylene terephthalate, fineness: 3 denier) were blended in a mass ratio of 70:30 with the fibers arranged parallel to each other, and the sheath component was heated and melted while being pressed to produce a carrier for impregnating high-viscosity cosmetics. Sample B (density: 24.0 kg / m) was cut from the carrier for impregnating high-viscosity cosmetics, and was cylindrical in shape with a three-dimensional structure, approximately 5 cm in diameter and 1 cm thick. 3 ) was obtained.

[0111] When the flat surface of Sample B obtained above was stretched in the direction in which the fibers ran parallel, stripes due to the parallel alignment of the fibers were observed, but when stretched perpendicular to that direction, no stripes were observed. Furthermore, as with Sample A obtained in Production Example 1, it was confirmed that clumps (amoeba-like) of fused portions were formed at the contact points between the constituent fibers.

[0112] Manufacturing Example 3 A web (thickness: 16 mm) was prepared by blending core-sheath composite fibers (core component: polyethylene terephthalate, sheath component: thermoplastic polyethylene terephthalate, fineness: 6 denier) with polyester fibers (resin: polyethylene terephthalate, fineness: 3 denier) in a mass ratio of 50:50, with the fibers arranged parallel to one another.

[0113] The web was sandwiched between a press laminator (heat press machine), and only one surface of the press laminator was heated to 219°C. The sheath component was heated and melted for 72 seconds while the web was pressed, forming a dense layer 1.5 mm thick on one surface, producing a high-viscosity cosmetic impregnation carrier in which a dense fibrous surface layer made of the web and a sparse fibrous base material made of the web were integrated.

[0114] Next, the carrier for impregnation with high-viscosity cosmetics obtained above was subjected to cutting processing to obtain a cylindrical sample C (density: 16.4 kg / m) having a three-dimensional structure with a diameter of approximately 5 cm and a thickness of approximately 1 cm. 3 ) was obtained.

[0115] When the flat surface of Sample C obtained above was stretched in the direction in which the fibers ran parallel, stripes due to the parallel alignment of the fibers were observed, but when it was stretched perpendicular to that direction, no stripes were observed. Furthermore, as with Sample A obtained in Production Example 1, it was confirmed that in Sample C, clump-shaped (amoeba-shaped) fused portions were formed at the contact points between the constituent fibers.

[0116] Examples 1 to 7 Using Sample A obtained in Production Example 1, a carrier for impregnating with high-viscosity cosmetic preparations was obtained by forming through holes using a Thomson mold so that the through holes extending from the front surface to the back surface of Sample A had the arrangement shown in Table 1. Table 1 shows the pore diameters of the through holes of the carrier for impregnating with high-viscosity cosmetic preparations obtained above and the ratio of the area of ​​all through holes to the surface area (hereinafter referred to as "area ratio").

[0117] Example 8 Using Sample A obtained in Production Example 1, a carrier for impregnating high-viscosity cosmetics was obtained by forming through holes using a Thomson die so that, as through holes extending from the front surface to the back surface of Sample A, eight through holes with a diameter of 1 mm were formed in the center, four through holes with a diameter of 1.5 mm were formed concentrically around the periphery of the 1 mm through hole, and 15 through holes with a diameter of 2 mm were formed concentrically around the periphery of the 1.5 mm through hole. The diameters and area ratios of the through holes in the carrier for impregnating high-viscosity cosmetics obtained above are shown in Table 1.

[0118] Comparative Example 1 Sample A obtained in Production Example 1 was used as it was as a carrier for impregnation with a high-viscosity cosmetic preparation.

[0119] [Table 1]

[0120] Examples 9 to 15 Using Sample B obtained in Production Example 2, a carrier for impregnating with high-viscosity cosmetic preparations was obtained by forming through holes using a Thomson mold so that the through holes extending from the front surface to the back surface of Sample B had the arrangement shown in Table 2. The pore diameters and area ratios of the through holes in the carrier for impregnating with high-viscosity cosmetic preparations obtained above are shown in Table 2.

[0121] Comparative Example 2 Sample B obtained in Production Example 2 was used as it was as a carrier for impregnation with a high-viscosity cosmetic preparation.

[0122] [Table 2]

[0123] Examples 16 to 22 Using Sample C obtained in Production Example 3, a carrier for impregnating with high-viscosity cosmetic preparations was obtained by forming through holes using a Thomson mold so that the through holes extending from the front surface to the back surface of Sample C had the arrangement shown in Table 3. The pore diameters and area ratios of the through holes in the carrier for impregnating with high-viscosity cosmetic preparations obtained above are shown in Table 3.

[0124] Comparative Example 3 Sample C obtained in Production Example 3 was used as it was as a carrier for impregnation with a high-viscosity cosmetic preparation.

[0125] Comparative Example 4 A polyurethane foam (product number: 301WH, manufactured by Kurabo Industries, Ltd.) was cut to obtain Sample D, approximately 5 cm in diameter and 1 cm in thickness. Sample D obtained above was used as a carrier for impregnation with a high-viscosity cosmetic preparation.

[0126] Comparative Example 5 Using Sample D obtained in Comparative Example 4, a carrier for impregnating with high-viscosity cosmetic preparations was obtained by forming through holes using a Thomson mold so that the through holes extending from the front surface to the back surface of Sample D had the arrangement shown in Table 3. The pore diameters and area ratios of the through holes in the carrier for impregnating with high-viscosity cosmetic preparations obtained above are shown in Table 3.

[0127] Comparative Example 6 An acrylonitrile-butadiene rubber foam (manufactured by Taiki Co., Ltd.) was cut to obtain Sample E, approximately 5 cm in diameter and 1 cm in thickness. Sample E obtained above was used as a carrier for impregnation with a high-viscosity cosmetic preparation.

[0128] Comparative Example 7 Using Sample E obtained in Comparative Example 6, a carrier for impregnating with high-viscosity cosmetic preparations was obtained by forming through holes using a Thomson mold so that the through holes extending from the front surface to the back surface of Sample E had the arrangement shown in Table 3. The pore diameters and area ratios of the through holes in the carrier for impregnating with high-viscosity cosmetic preparations obtained above are shown in Table 3.

[0129] [Table 3]

[0130] Test Example 1 The high-viscosity cosmetic was filled into the carriers for impregnation with high-viscosity cosmetic preparations obtained in Examples 1 to 22 and Comparative Examples 1 to 7, and the loading property of the high-viscosity cosmetic preparation and the degree of removal of the high-viscosity cosmetic preparation from the high-viscosity cosmetic preparation-impregnated body (uniformity of amount removed) were evaluated according to the following methods. The results are shown in Table 4.

[0131] (1) Filling ability of high-viscosity cosmetics The carrier for impregnation with a high-viscosity cosmetic was placed in an inner case, and 17 g of a high-viscosity cosmetic (viscosity at 25°C: 20,000 mPa·s) was filled into the carrier for impregnation with a manual cream filling machine to produce a high-viscosity cosmetic-impregnated body. The filling ability of the high-viscosity cosmetic was evaluated based on the following evaluation criteria. [Evaluation criteria] Good: The high-viscosity cosmetic can be easily filled into the carrier for impregnation with the high-viscosity cosmetic. △: It takes a little time to fill the carrier for impregnating the high-viscosity cosmetic with the high-viscosity cosmetic. ×: It is difficult to fill the carrier for impregnating the high-viscosity cosmetic with the high-viscosity cosmetic.

[0132] (2) Uniformity of removal amount The carrier for impregnating high-viscosity cosmetics obtained in the above "(1) Filling property of high-viscosity cosmetics" was left to stand for 1 hour after production. The carrier for impregnating high-viscosity cosmetics was rubbed with a puff, and the cosmetic adhering to the puff was applied to the nonwoven fabric. This operation was counted as one cycle, and the amount of cosmetic removed was measured every 30 times.

[0133] In addition, the column "Amount of cosmetic removed" in Table 4 lists the amount (g) of cosmetic removed when the above operation was repeated 1 to 30 times, 31 to 60 times, 61 to 90 times, or 91 to 120 times.

[0134] [Table 4]

[0135] Next, based on the results shown in Table 4, the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 1 to 6, Example 8, and Comparative Example 1 are shown in Figure 1, the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 9 to 14 and Comparative Example 2 are shown in Figure 2, and the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 16 to 21 are shown in Figure 3.

[0136] (a) to (h) in Fig. 1 respectively show the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 1 to 6, Example 8, and Comparative Example 1. (a) to (g) in Fig. 2 respectively show the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 9 to 14 and Comparative Example 2. (a) to (f) in Fig. 3 respectively show the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 16 to 21.

[0137] From the results shown in Table 4, it can be seen that the carriers for impregnation with high-viscosity cosmetics obtained in each Example were all rated as fair or good for their ability to load high-viscosity cosmetics, and therefore can be easily loaded with large amounts of high-viscosity cosmetics.

[0138] In contrast, the carriers for impregnation with high-viscosity cosmetic preparations obtained in each comparative example were all rated as × for their ability to fill with high-viscosity cosmetic preparations, indicating that it is difficult to fill them with high-viscosity cosmetic preparations. Furthermore, the carriers for impregnation with high-viscosity cosmetic preparations using polyurethane foam (Comparative Examples 4 and 5) and the carriers for impregnation with high-viscosity cosmetic preparations using acrylonitrile-butadiene rubber foam (Comparative Examples 6 and 7) were also rated as × for their ability to fill with high-viscosity cosmetic preparations, indicating that when these foams are used as carriers for impregnation with high-viscosity cosmetic preparations, they have poor filling ability, regardless of whether or not they have through-holes.

[0139] 1 to 3, the high-viscosity cosmetic-impregnated bodies obtained using the carriers for impregnation with high-viscosity cosmetic preparations obtained in Examples 1 to 6, 8 to 14, and 16 to 21 were all evaluated as good for the filling ability of high-viscosity cosmetic preparations, indicating that the high-viscosity cosmetic preparations could be continuously and almost uniformly dispensed. Therefore, it can be seen that the cosmetics using the high-viscosity cosmetic-impregnated bodies obtained in these Examples enable the high-viscosity cosmetic preparations to be continuously and almost uniformly dispensed.

[0140] 1(f) and (g), 2(c), and 3(a), the amount of cosmetic removed decreased when the above procedure was repeated 91 to 120 times. This decrease in the amount removed was due to the small amount of high-viscosity cosmetic remaining.

[0141] Examples 23 to 27 Using Sample A obtained in Production Example 1, a carrier for impregnating with high-viscosity cosmetic preparations was obtained by forming through holes using a Thomson mold so that the through holes extending from the front surface to the back surface of Sample A had the arrangement shown in Table 5. The pore diameters and area ratios of the through holes in the carrier for impregnating with high-viscosity cosmetic preparations obtained above are shown in Table 5.

[0142] Comparative Example 8 Sample A obtained in Production Example 1 was used as it was as a carrier for impregnation with a high-viscosity cosmetic preparation.

[0143] [Table 5]

[0144] Examples 28 to 31 Using Sample B obtained in Production Example 2, a carrier for impregnating with high-viscosity cosmetic preparations was obtained by forming through holes using a Thomson mold so that the through holes extending from the front surface to the back surface of Sample B had the arrangement shown in Table 6. The pore diameters and area ratios of the through holes in the carrier for impregnating with high-viscosity cosmetic preparations obtained above are shown in Table 6.

[0145] Comparative Example 9 Sample B obtained in Production Example 2 was used as it was as a carrier for impregnation with a high-viscosity cosmetic preparation.

[0146] [Table 6]

[0147] Examples 32 to 35 Using Sample C obtained in Production Example 3, a carrier for impregnating with high-viscosity cosmetic preparations was obtained by forming through holes using a Thomson mold so that the through holes extending from the front surface to the back surface of Sample C had the arrangement shown in Table 7. The pore diameters and area ratios of the through holes in the carrier for impregnating with high-viscosity cosmetic preparations obtained above are shown in Table 7.

[0148] [Table 7]

[0149] Test Example 2 The carriers for impregnating high-viscosity cosmetics obtained in Examples 23 to 35 and Comparative Examples 8 and 9 were filled with high-viscosity cosmetics, and the degree of loading of the high-viscosity cosmetics and the degree of removal of the high-viscosity cosmetics from the high-viscosity cosmetic-impregnated bodies were evaluated according to the following methods. The results are shown in Table 8.

[0150] (1) Filling ability of high-viscosity cosmetics The carrier for impregnation with a high-viscosity cosmetic was placed in an inner case, and 17 g of a high-viscosity cosmetic (viscosity at 25°C: 50,000 mPa·s) was filled into the carrier for impregnation with a manual cream filling machine to produce a high-viscosity cosmetic-impregnated body. The filling ability of the high-viscosity cosmetic was evaluated based on the following evaluation criteria.

[0151] [Evaluation criteria] Good: The high-viscosity cosmetic can be easily filled into the carrier for impregnation with the high-viscosity cosmetic. △: It takes a little time to fill the carrier for impregnating the high-viscosity cosmetic with the high-viscosity cosmetic. ×: It is difficult to fill the carrier for impregnating the high-viscosity cosmetic with the high-viscosity cosmetic.

[0152] (2) Removal of high-viscosity cosmetics from the high-viscosity cosmetic-impregnated body The carrier for impregnating high-viscosity cosmetics obtained in the above "(1) Filling property of high-viscosity cosmetics" was left to stand for 1 hour after production. The carrier for impregnating high-viscosity cosmetics was rubbed with a puff, and the cosmetic adhering to the puff was applied to a nonwoven fabric. This cycle was repeated, and the amount of cosmetic removed was measured every 30 cycles.

[0153] In addition, the column "Amount of cosmetic removed" in Table 8 lists the amount (g) of cosmetic removed when the above operation was repeated 1 to 30 times, 31 to 60 times, 61 to 90 times, or 91 to 120 times.

[0154] [Table 8]

[0155] Next, based on the results shown in Table 8, the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 23 to 26 and Comparative Example 8 are shown in Figure 4, the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 28 to 30 and Comparative Example 9 are shown in Figure 5, and the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 32 to 34 are shown in Figure 6.

[0156] (a) to (e) in Fig. 4 respectively show the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 23 to 26 and Comparative Example 8. (a) to (d) in Fig. 5 respectively show the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 28 to 30 and Comparative Example 9. (a) to (c) in Fig. 6 respectively show the measurement results of the degree of removal of the high-viscosity cosmetic from the high-viscosity cosmetic-impregnated bodies obtained in Examples 32 to 34.

[0157] From the results shown in Table 8, it can be seen that the carriers for impregnation with high-viscosity cosmetics obtained in each Example were all rated as △ or ◯ for their ability to load high-viscosity cosmetics, and therefore can be easily loaded with large amounts of high-viscosity cosmetics.

[0158] In contrast, the carriers for impregnation with high-viscosity cosmetics obtained in each of the comparative examples were all rated as x for their ability to fill with high-viscosity cosmetics, indicating that it is difficult to fill with high-viscosity cosmetics.

[0159] 4 to 6, the high-viscosity cosmetic-impregnated bodies obtained using the carriers for impregnation with high-viscosity cosmetic preparations obtained in Examples 23 to 26, Examples 28 to 30, and Examples 32 to 34 were all rated as good for the filling ability of high-viscosity cosmetic preparations, indicating that high-viscosity cosmetic preparations can be continuously and almost uniformly dispensed. Therefore, it can be seen that cosmetics using the high-viscosity cosmetic-impregnated bodies obtained in these Examples enable high-viscosity cosmetic preparations to be continuously and almost uniformly dispensed.

[0160] 4(a) and 5(c), the amount of cosmetic removed decreased when the cycle was repeated 91 to 120 times. This decrease in the amount removed was due to the small amount of high-viscosity cosmetic remaining.

[0161] Examples 36 to 40 A laser beam was irradiated onto the surface of Sample A obtained in Production Example 1 using a laser processing machine (Universal Laser Systems, product number: VLS2.30) to form through-holes in the arrangement shown in Table 11, thereby obtaining a carrier for impregnating with high-viscosity cosmetic preparations. The pore diameters and area ratios of the through-holes in the obtained carrier for impregnating with high-viscosity cosmetic preparations are shown in Table 9.

[0162] The surface designs of the carriers for impregnating high-viscosity cosmetic preparations obtained in Examples 36 to 40 are shown in Figure 7. In Figure 7, (a) is the surface design of carrier 1a for impregnating high-viscosity cosmetic preparations having through holes 2a obtained in Example 36, (b) is the surface design of carrier 1b for impregnating high-viscosity cosmetic preparations having through holes 2b obtained in Example 37, (c) is the surface design of carrier 1c for impregnating high-viscosity cosmetic preparations having through holes 2c obtained in Example 38, (d) is the surface design of carrier 1d for impregnating high-viscosity cosmetic preparations having through holes 2d obtained in Example 39, and (e) is the surface design of carrier 1e for impregnating high-viscosity cosmetic preparations having through holes 2e obtained in Example 40.

[0163] When high-viscosity cosmetics were filled into the carriers for impregnation with high-viscosity cosmetics obtained in Examples 36 to 40, the loading property of the cosmetics and the degree of removal of the high-viscosity cosmetics from the high-viscosity cosmetic-impregnated bodies were investigated in the same manner as in Test Example 1. The evaluation results of the loading property of the cosmetics are shown in Table 9.

[0164] [Table 9]

[0165] The results shown in Table 9 indicate that the carriers for impregnation with high-viscosity cosmetic preparations obtained in each Example were all rated as good for their ability to load high-viscosity cosmetic preparations, indicating that they can be loaded with large amounts of high-viscosity cosmetic preparations with ease. Furthermore, it was confirmed that the removal of the high-viscosity cosmetic preparation was excellent, just like in Example 1.

[0166] From the above results, it can be seen that when the pore size of the carrier for impregnation with high-viscosity cosmetics is set to preferably 0.5 to 5 mm, more preferably 0.5 to 3 mm, and even more preferably 1 to 2.5 mm, and the ratio of the area of ​​all through holes to the surface area is set to preferably 1 to 30%, more preferably 3 to 25%, and even more preferably 5 to 20%, the porosity is improved, and therefore the filling ability of high-viscosity cosmetics is improved.

[0167] Therefore, by setting the pore size of the carrier for impregnation with high-viscosity cosmetics and the ratio of the area of ​​all through holes to the surface area so that they each fall within the above-mentioned ranges, the amount of high-viscosity cosmetics removed after a predetermined number of times (e.g., 30 times) becomes uniform, and it can be seen that the amount of high-viscosity cosmetics removed can be appropriately adjusted to the desired amount.

[0168] Examples 41 to 54 A laser beam was irradiated onto the surface of Sample A obtained in Production Example 1 using a laser processing machine (Universal Laser Systems, product number: VLS2.30) to form through-holes in the arrangement shown in Table 10, thereby obtaining a carrier for impregnating with a low-viscosity cosmetic preparation. The pore diameters and area ratios of the through-holes in the obtained carrier for impregnating with a low-viscosity cosmetic preparation are shown in Table 10.

[0169] The carriers for impregnation with low-viscosity cosmetics obtained in Examples 42, 45, and 48 each had the surface designs shown in Figures 8(a) to 8(c).

[0170] Comparative Example 10 A laser beam was irradiated onto the surface of Sample D obtained in Comparative Example 4 using a laser processing machine (Universal Laser Systems, product number: VLS2.30) to form through-holes in the arrangement shown in Table 10, thereby obtaining a carrier for impregnating with a low-viscosity cosmetic preparation. The pore diameters and area ratios of the through-holes in the obtained carrier for impregnating with a low-viscosity cosmetic preparation are shown in Table 10.

[0171] [Table 10]

[0172] Test Example 3 The visibility of the surface design, the shape of the through-holes, and the filling ability of the low-viscosity cosmetic when the low-viscosity cosmetic was filled into the carriers for impregnation with low-viscosity cosmetic preparations obtained in Examples 41 to 54 and Comparative Example 10 were evaluated according to the following methods. The results are shown in Table 11.

[0173] (1) Visibility of the design The surface design of the carrier for impregnation with a low-viscosity cosmetic preparation was observed with the naked eye, and the visibility of the design was evaluated based on the following evaluation criteria.

[0174] [Evaluation criteria] ○: The design is immediately visible. △: It takes time to visually recognize the design. ×: The design cannot be seen at all.

[0175] (2) Shape of the through hole Immediately after irradiation with the laser beam, the surface design of the low-viscosity cosmetic preparation-impregnated carrier was observed with the naked eye, and the shape of the through holes was evaluated based on the following evaluation criteria. [Evaluation criteria] ◯: No residue is found in the through-hole, and the through-hole is of good shape. △: A small amount of residue was present in the through-holes, and some of the through-holes were slightly blocked. ×: Most of the through holes are blocked by residue.

[0176] (3) Filling ability of low-viscosity cosmetics The carrier for impregnation with a low-viscosity cosmetic was placed in an inner case, and 17 g of a low-viscosity cosmetic (viscosity at 25°C: 5000 mPa·s), 17 g of a low-viscosity cosmetic (viscosity at 25°C: 10000 mPa·s), or 17 g of a low-viscosity cosmetic (viscosity at 25°C: 19000 mPa·s) was filled into the carrier for impregnation with a manual cream filling machine to produce a low-viscosity cosmetic-impregnated body. The filling ability of the low-viscosity cosmetic was evaluated based on the following evaluation criteria.

[0177] [Evaluation criteria] ◯: The low-viscosity cosmetic can be easily filled into the carrier for impregnation with the low-viscosity cosmetic. △: It takes a little time to fill the low-viscosity cosmetic into the carrier for impregnation with the low-viscosity cosmetic. ×: It is difficult to fill the low-viscosity cosmetic material into the carrier for impregnation with the low-viscosity cosmetic material.

[0178] (4) Uniformity of removal amount The low-viscosity cosmetic carrier (viscosity at 25°C: 10,000 mPa·s) obtained in "(3) Filling property of low-viscosity cosmetic" above was produced and then allowed to stand for 1 hour. One cycle consisted of rubbing the low-viscosity cosmetic carrier with a puff and applying the low-viscosity cosmetic adhering to the puff to a nonwoven fabric. This cycle was repeated, and the amount (g) of low-viscosity cosmetic removed was measured every 30 cycles. More specifically, as in "(2) Uniformity of amount removed" above, the amount (g) of low-viscosity cosmetic removed was measured after the cycle was repeated 1 to 30 times, 31 to 60 times, 61 to 90 times, or 91 to 120 times. The uniformity of the amount of low-viscosity cosmetic removed was evaluated based on the following evaluation criteria.

[0179] [Evaluation criteria] Good: The amount of low-viscosity cosmetic material removed is uniform. More specifically, the amount of low-viscosity cosmetic material removed when the above operation is repeated 1 to 30 times, 31 to 60 times, 61 to 90 times, or 91 to 120 times is within the range of 1.0 g or more and 5.0 g or less. Δ: The amount of low-viscosity cosmetic material removed is almost uniform. More specifically, the amount of low-viscosity cosmetic material removed when the above operation is repeated 1 to 30 times, 31 to 60 times, 61 to 90 times, or 91 to 120 times is 0.5 g or more but less than 1.0 g, or more than 5.0 g but not more than 6.0 g. ×: The amount of low-viscosity cosmetic material removed is non-uniform. More specifically, when the above operation is repeated 1 to 30 times, 31 to 60 times, 61 to 90 times, or 91 to 120 times, the amount of low-viscosity cosmetic material removed is less than 0.5 g or exceeds 6.0 g.

[0180] [Table 11]

[0181] The results shown in Table 11 indicate that the carriers for impregnating low-viscosity cosmetic preparations obtained in each Example were all rated as ◯ or △ in visibility, demonstrating excellent design visibility. Furthermore, the carriers for impregnating low-viscosity cosmetic preparations obtained in each Example were rated as ◯ or △ in the shape of the through holes, indicating that they were easy to fill with the low-viscosity cosmetic preparation and that the low-viscosity cosmetic preparation could be continuously and almost uniformly dispensed. In contrast, the carrier for impregnating low-viscosity cosmetic preparations obtained in Comparative Example 10 was rated as × in the shape of the through holes, indicating that it was difficult to fill with the low-viscosity cosmetic preparation and that it was difficult to continuously and almost uniformly dispense the low-viscosity cosmetic preparation.

[0182] Furthermore, from the results shown in Table 11, the carriers for impregnation with low-viscosity cosmetic preparations obtained in each Example were all rated as ◯ for their ability to fill with low-viscosity cosmetic preparations, indicating that they can be easily filled with large amounts of low-viscosity cosmetic preparations. In contrast, some of the carriers for impregnation with low-viscosity cosmetic preparations obtained in Comparative Example 10 were rated as × for their ability to fill with low-viscosity cosmetic preparations, indicating that it is difficult or impossible to fill with low-viscosity cosmetic preparations.

[0183] The above results show that when the pore size of a carrier for impregnating low-viscosity cosmetics is preferably set to 0.1 to 0.6 mm, more preferably 0.2 to 0.5 mm, and the ratio of the area of ​​all through holes to the surface area is preferably set to 0.1 to 15%, more preferably 0.2 to 13%, and even more preferably 0.5 to 10%, the visibility of the surface design of the carrier for impregnating low-viscosity cosmetics and the filling ability of the low-viscosity cosmetics are improved, and the low-viscosity cosmetics can be continuously and almost uniformly dispensed. In particular, when a three-dimensional structure is formed using composite fibers and the pore size and the ratio of the area of ​​all through holes to the surface area are set to be within the above-mentioned ranges, the visibility of the surface design of the carrier for impregnating low-viscosity cosmetics and the filling ability of the low-viscosity cosmetics are improved, and the low-viscosity cosmetics can be continuously and almost uniformly dispensed.

[0184] Furthermore, when the pore size and the ratio of the area of ​​all through holes to the surface area of ​​the carrier for impregnation with a low-viscosity cosmetic are set so as to satisfy the above-mentioned ranges, the amount of low-viscosity cosmetic dispensed for each predetermined number of times becomes uniform, and it can be seen that this can be appropriately adjusted to obtain the desired amount of low-viscosity cosmetic dispensed. In particular, when a three-dimensional structure is formed using composite fibers and the pore size and the ratio of the area of ​​all through holes to the surface area are set so as to satisfy the above-mentioned ranges, it can be appropriately adjusted to obtain the desired amount of low-viscosity cosmetic dispensed. [Explanation of symbols]

[0185] 1: Carrier for impregnating high-viscosity cosmetics 2:Through hole 3: Carrier for impregnating low-viscosity cosmetics 4:Through hole

Claims

1. A cosmetic-impregnated carrier used to hold a liquid cosmetic having a viscosity of 20,000 mPa·s or more when measured at 25°C using a BM-type viscometer, characterized in that the cosmetic-impregnated carrier is composed of a web sheet having through holes extending from the front surface to the back surface of the cosmetic-impregnated carrier, the through holes having a diameter of 0.5 to 5 mm, the ratio of the area of ​​all the through holes to the area of ​​the surface of the cosmetic-impregnated carrier being 1 to 30%, the web sheet having a sparse fibrous base material and a dense fibrous surface layer, and a dense fibrous layer formed on the surface of the sparse fibrous base material.

2. The density of the dense fibrous surface layer is 45 to 60 kg / m 3 and the density of the sparse fibrous substrate is 13 to 20 kg / m 3 2. The carrier for cosmetic preparation impregnation according to claim 1, wherein

3. 3. The carrier to be impregnated with a cosmetic preparation according to claim 1, wherein the carrier has a three-dimensional structure made of composite fibers.

4. 4. The carrier for being impregnated with a cosmetic preparation according to claim 1, wherein the carrier for being impregnated with a cosmetic preparation is composed of composite fibers and fibers other than the composite fibers, and the other fibers are synthetic fibers.

5. 5. The carrier for being impregnated with a cosmetic preparation according to claim 4, wherein the mass ratio of the composite fiber to the synthetic fiber (composite fiber / synthetic fiber) is 10 / 90 to 80 / 20.

6. 6. The carrier for being impregnated with a cosmetic preparation according to claim 3, wherein the composite fiber is a core-sheath type composite fiber.

7. 7. The carrier to be impregnated with a cosmetic preparation according to claim 1, wherein the fibers are oriented in the fiber length direction in the thickness direction of the carrier to be impregnated with a cosmetic preparation.

8. A cosmetic-impregnated body comprising the carrier for cosmetic impregnation according to any one of claims 1 to 7 and a cosmetic material.

9. A cosmetic product comprising the cosmetic-impregnated body according to claim 8.

Citation Information

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