EP3700497A1

EP3700497A1 - Sheet-like substrate having a function of limiting migration of formulas applied on targeted zones thereof, and sheet-like cosmetic product manufactured using the same

Info

Publication number: EP3700497A1
Application number: EP18753261.9A
Authority: EP
Inventors: Gaurav Agarwal; Hiroyuki Ogata
Original assignee: LOreal SA
Current assignee: Agarwal Gaurav; OGATA, HIROYUKI; LOreal SA
Priority date: 2017-10-24
Filing date: 2018-06-20
Publication date: 2020-09-02
Also published as: CN111225651A; WO2019082440A1; KR20200070325A; KR102467140B1; JP7158840B2; JP2019076362A

Abstract

La présente invention concerne un substrat de type feuille dans lequel il est prévu que des zones ciblées respectives auxquelles au moins deux types de formule doivent être respectivement appliqués soient attribuées au substrat. Le substrat est constitué d'un matériau intissé. La densité volumique du matériau intissé est comprise entre 0,01 gramme/cm³ et 0,08 gramme/cm³. La présente invention concerne également un produit cosmétique de type feuille comprenant un tel substrat et deux types ou plus de formules imprégnées dans le substrat.The present invention relates to a sheet-like substrate wherein it is provided that respective target areas to which at least two types of formula are respectively to be applied are assigned to the substrate. The substrate is made of non-woven material. The density of the nonwoven material is between 0.01 gram / cm ³ and 0.08 gram / cm ³ . The present invention also relates to a sheet-like cosmetic product comprising such a substrate and two or more types of formulas impregnated into the substrate.

Description

DESCRIPTION

[TITLE OF INVENTION]

SHEET-LIKE SUBSTRATE HAVING A FUNCTION OF LIMITING MIGRATION OF FORMULAS APPLIED ON TARGETED ZONES THEREOF, AND SHEET-LIKE

COSMETIC PRODUCT MANUFACTURED USING THE SAME

[TECHNICAL FIELD]

[0001] The present invention relates to a sheet-like substrate, for example, used for sheet-like cosmetic products such as facial masks, patches and wipes. The present invention also relates to a sheet-like cosmetic product manufactured using such a substrate.

[BACKGROUND ART]

[0002] Facial masks, patches, and wipes are the most popular substrate-based cosmetic products. Such sheet-like cosmetic products are conventionally impregnated with one kind of cosmetic formula. Recently, printing technologies for applying multiple kinds of cosmetic formulas on one sheet-like substrate has been developed in order to address the different concerns of the user's skin.

[0003] When multiple kinds of cosmetic formulas , are applied to different targeted zones on a conventional sheet-like substrate, migration of the formulas between adjacent targeted zones may occur. This results in the mixing of different formulas at the boundaries of adjacent targeted zones. Such a mixing of different formulas is not favorable.

[0004] In order to prevent the mixing of different formulas on the substrate, WO

2015/140283 Al proposes to apply the multiple kinds of formulas on the substrate in a dry stage. However, this approach has a problem in that a large amount of polyols or oils cannot be used in such a product since they cannot completely dry out. Therefore, products manufactured using this approach do not have the same sensory experience for the user as the packed masks currently sold in the market.

[0005] WO 2015/097207 Al proposes the selecting of compositions of formulas in order to ensure that two adjacent formulas do not mix on a substrate. However, in this approach, since the substrate-based products are to be impregnated with large amounts of multiple liquid formulas with different behavior, one specific liquid formula which is more flowable and less absorbent on the substrate can flow on a surface of the substrate and migrate to the adjacent zone for another formula.

[0006] Therefore, there is a demand for a sheet-like substrate which can hold multiple kinds of liquid formulas applied on respective targeted zones and prevent spreading of the liquid formulas to adjacent zones.

[DISCLOSURE OF THE INVENTION]

[0007] In view of the above, an object of the present invention is to provide a novel sheet-like substrate suitable for applying multiple kinds of formulas on respective targeted zones thereof with little or no migration of applied formulas between adjacent zones. Another object of the present invention is to provide a novel sheet-like cosmetic product manufactured using such a substrate.

[0008] In order to achieve the above-described objects, the present invention provides a sheet-like substrate, in which it is intended that respective targeted zones to which two or more kinds of formulas are to be applied respectively be assigned to the substrate, wherein the substrate is formed of a nonwoven material, and wherein the volume density of the nonwoven material is between 0.01 grams/cm³ and 0.08 grams/cm³. Furthermore, the present invention provides a sheet-like cosmetic product, comprising such a substrate and two or more kinds of formulas impregnated in the substrate.

[0009] Conventionally, due to their hydrophilic properties, and wide availability, cellulosic nonwovens and blends of cellulosic materials with synthetic material-based nonwovens have been used for substrates of sheet-like cosmetic products such as facial masks. The areal density of nonwoven materials used for such an application is generally between 40 grams/m² (gsm) and 100 grams/m² (gsm), and the thickness thereof is from about 0.3 mm to about 1.0 mm. The volume density of such nonwoven materials is calculated by dividing the areal density by the thickness. Some examples of the volume density of nonwoven materials commercially used for facial masks are shown in Table 1 below.

Table 1 : Volume density of conventional nonwoven materials [0010] However, nonwoven materials having such properties are not suitable for manufacturing a substrate in which it is intended that respective targeted zones to which two or more kinds of formulas are to be applied respectively be assigned to the substrate. This is because the applied formulas can relatively freely migrate inside the conventional nonwoven materials. As a result of a study in view of this fact, the inventors of the present invention have found that the volume density (i.e., the bulk density) of the nonwoven materials is a key parameter in order to give a sheet-like substrate a function of limiting the migration of formulas applied on targeted zones thereof, that is, in order to provide a sheet-like substrate suitable for applying multiple kinds of formulas on respective targeted zones with little or no migration of applied formulas between adjacent zones. More specifically, the present inventors have found that a sheet-like substrate having the above function can be realized by using nonwoven materials having a relatively low volume density as compared with the volume densities shown in Table 1 , that is, a volume density between 0.01 grams/cm³ and 0.08 grams/cm³. The present invention is based on such findings.

[0011] According to one preferred aspect of the present invention, fibers forming the nonwoven material may be hydrophobic fibers.

[0012] According to one preferred aspect of the present invention, fibers forming the nonwoven material may be bi-component fibers comprising two kinds of components having mutually different melting points.

[0013] According to one preferred aspect of the present invention, at least one of the two kinds of components may be selected from the group consisting of polyester, derivatives of polyester, Nylon 6, Nylon 66, polypropylene, polyethylene, polylactic acid, polystyrene, and HDPE. In a more preferred aspect of the present invention, both of the two kinds of components may be selected from this group.

[0014] According to one preferred aspect of the present invention, as seen in the cross section of the fiber, the two kinds of components may be arranged such that one forms a core of the fiber and the other forms a sheath of the fiber surrounding the core. In a more preferred aspect of the present invention, the core may be disposed at the center of the sheath or may be disposed eccentrically from the center of the sheath. Alternatively, according to one preferred aspect of the present invention, as seen in the cross section of the fibers, the two kinds of components may be arranged adjacent to each other in the diametrical direction of the fibers and/or in the circumferential direction of the fibers. [0015] According to one preferred aspect of the present invention, the nonwoven material may be treated with a hydrophilic finish. In a more preferred aspect of the present invention, the hydrophilic finish may be a polymer composed of one or more monomers selected from the group consisting of acrylic acid, methacrylic acid, glutamic acid, β-carboxyethyl acrylate, maleic acid, and monoesters of maleic acid.

[0016] According to one preferred aspect of the present invention, the substrate may be used for manufacturing sheet-like cosmetic products. In a more preferred aspect of the present invention, the sheet-like cosmetic products are one of facial masks, patches and wipes. The term "masks" as used herein should be understood to include not only masks that cover the entirety of a user's face, but also, for example, half masks that cover only the upper half or lower half of the user's face.

[BRIEF DESCRIPTION OF THE DRAWINGS]

[0017] Non-limiting and representative embodiments of the present invention will now be explained in detail below referring to the attached drawings.

[0018] FIG. 1 is a plan view of a facial mask manufactured using a substrate according to one embodiment of the present invention, in which formulas are not yet applied to respective targeted zones of the substrate.

[0019] FIGS. 2 A to 2D are schematic diagrams showing various kinds of bi- component fibers forming the nonwoven material used for manufacturing the facial mask shown in FIG. 1 , in which the fibers are shown in cross section.

[0020] FIG. 3 is a plan view of the facial mask manufactured using a substrate according to one embodiment of the present invention, in which formulas have already been applied to respective targeted zones of the substrate.

[0021] FIG. 4A is a figure showing a mask-shaped substrate according to one embodiment of the present invention on which two kinds of formulas have been applied, in which the photograph is changed to a diagram for clarity (Example 1).

[0022] FIG. 4B is a figure showing a mask-shaped substrate for comparison on which two kinds of formulas have been applied, in which the photograph is changed to a diagram for clarity (Comparison 1).

[0023] FIG. 5 is a figure showing a mask-shaped substrate according to one embodiment of the present invention on which two kinds of formulas have been applied, in which the photograph is changed to a diagram for clarity (Example 2). [DETAILED DESCRIPTION OF EMBODIMENTS]

[0024] Embodiments of the present invention will now be explained referring to FIGS. 1 , 2 A to 2D, and 3. The following embodiment relates to a substrate for a sheetlike cosmetic product, in particular, a full facial sheet mask which can cover the entire face of a user. However, the present invention is equally applicable to a substrate for other forms of sheet masks, for example, a substrate for a half type facial sheet mask covering the upper half or the lower half of the face of the user, or to a substrate for patches and wipes.

[0025] FIG. 1 shows a facial sheet mask 1 manufactured using a sheet-like substrate according to one embodiment of the present invention in a spread-out state. Multiple formulas are not yet applied to respective targeted zone (described in detail later) of this mask 1. The mask 1 has a center axis line X, which is a left-right symmetrical axis line that divides the mask 1 into two equal parts. In the mask 1, oval openings 10 and 12 are formed in positions corresponding to the eyes and mouth of the user. A U-shaped slit 14 is provided at a position corresponding to the nose of the user of the mask 1 , and by the existence of this slit 14, a flap 16 is formed in the mask 1. When the user adheres the mask 1 to his/her face, the user's nose can protrude from the remaining surface of the mask 1 by turning the flap 16. Further, in order to enhance the fit on the user's face, a plurality of slits (not shown) along the radial direction of the mask 1 may be formed, for example, on the peripheral edge of the mask 1 at predefined, for example, equal intervals.

[0026] The intention of the sheet-like substrate according to one embodiment of the present invention is that respective targeted zones to which two or more kinds of formulas are to be applied respectively be assigned to the substrate (described in more detail below). The sheet-like substrate is formed of a nonwoven material, and the volume density of which is between 0.01 grams/cm³ and 0.08 grams/cm³, in particular, between 0.03 grams/cm³ and 0.06 grams/cm³. In this embodiment, the thickness of the sheet-like substrate, i.e,. the mask 1, is from 0.5 mm to 1.0 mm, more preferably from 0.6 mm to 0.8 mm.

[0027] The fibers forming the nonwoven material as stated above are hydrophobic fibers. Preferably, the fibers forming the nonwoven material are multi- component fibers comprising two or more kinds of components, preferably two or more kinds of polymeric materials, having mutually different melting points. More specifically, the fibers forming the nonwoven material are bi-component fibers comprising two kinds of components, two kinds of polymeric materials, having mutually different melting points. The term "bi-component fibers" used herein generally means conjugate fibers comprising two polymeric materials in cross section, but it may contain three or more polymeric materials. At least one of the polymeric materials (in the present embodiment, both of them) is selected from the group consisting of polyester, preferably polyethylene terephthalate, derivatives of polyester, preferably derivatives of polyethylene terephthalate, Nylon 6, Nylon 66, polypropylene, polyethylene, polylactic acid, polystyrene, and HDPE. In one embodiment, polyethylene terephthalate having melting point of from 200 to 300°C, in particular 250°C may be selected. In one embodiment, derivatives of polyethylene terephthalate having melting point of from 110 to 220°C may be selected. In one embodiment, polyethylene having melting point of from 100 to 150°C, in particular 130°C may be selected. In one embodiment, polypropylene having melting point of from 150 to 200°C, in particular 175°C may be selected. In one embodiment, the bi-component fibers contain polyester (preferably polyethylene terephthalate) and derivatives of polyester (preferably derivatives of polyethylene terephthalate). In one embodiment, the bi-component fibers contain polypropylene and polyethylene. In one embodiment, the bi-component fibers contain polyester (preferably polyethylene terephthalate) and polyethylene. As seen in the cross section of the fibers, the two kinds of components may be arranged such that one forms a core of the fiber and the other forms a sheath of the fiber surrounding the core. Alternatively, as seen in the cross section of the fiber, the two kinds of components are arranged adjacent to each other in the diametrical direction of the fiber and/or in the circumferential direction of the fiber.

[0028] FIGS. 2A to 2D show various kinds of bi-component fibers that can be used to form the above described nonwoven material in cross section. FIG. 2A shows bi- component fiber F in which one component forms a core 100 of the fiber and the other forms a sheath 110 of the fiber surrounding the core 100. In the arrangement shown in FIG. 2 A, the core 100 is disposed at the center of the sheath 110. More precisely, the core 100 is disposed so that its center point coincides with the center point "O" of the sheath 110 or fiber F. FIG. 2B also shows bi-component fiber F' in which one component forms a core 120 of the fiber and the other forms a sheath 130 of the fiber surrounding the core 120. However, contrary to the arrangement in FIG. 2 A, the core 120 is disposed eccentrically from the center point "O" of the sheath 130 or fiber F'. FIG. 2C shows bi- component fiber F" in which the two kinds of components 140, 150 are arranged adjacent to each other in the diametrical direction of the fiber F". In this arrangement, the boundary of the component 140, 150 passes through the center point "O" of the fiber F". FIG. 2D also shows bi-component fiber F'" in which the two kinds of components 160, 170 are arranged adjacent to each other. However, contrary to the arrangement in FIG. 2C, the two kinds of components 160, 170 are arranged adjacent to each other in both the diametrical and the circumferential direction of the fiber F"\ In this arrangement, the boundaries of the component 160, 170 pass through the center point "O" of the fiber F'". Although FIG. 2D shows a state in which the cross section of the fiber is divided into eight sections, it is also possible to divide the cross section of the fiber into more sections or fewer sections.

[0029] The above-described bi-component fibers can be converted into the sheet-like substrate for cosmetic products using a thermal bonding process, more specifically, a process in which hot air is passed through. The temperature of the hot air is selected such that only one polymer of bi-component fibers melts to form a consolidated body of the fibers while the other polymer remains in a non-melted state and provides the substrate with a soft fluffy feel required for the cosmetic products.

[0030] Some examples of particularly preferred combinations of two components are as follows:

• Polyester core, preferably polyethylene terephthalate core having melting point of from 200 to 300°C, in particular 250°C with polyester derivative sheath, preferably polyethylene terephthalate derivative sheath having melting point of from 110°C to 220°C;

• Polyester core, preferably having melting point of from 200 to 300°C, in particular 250°C with polyethylene sheath, preferably having melting point of from 100 to 150°C , in particular 130°C; and

• Polypropylene core, preferably having melting point of from 150 to 200°C, in particular 175°C with polyethylene sheath, preferably having melting point of from

100 to 150°C, in particular 130°C

[0031] In this embodiment, the non- woven material forming the sheet-like substrate of the mask 1 is treated with a hydrophilic finish. As the hydrophilic finish, a polymer may be used which is composed of one or more monomers selected from the group consisting of acrylic acid, methacrylic acid, glutamic acid, β-carboxyethyl acrylate, maleic acid, and monoesters of maleic acid. In this embodiment, acrylate polymers are used as the hydrophilic finish. The acrylate polymers include any polymers comprising acrylic acid and/or methacrylic acid as monomers. Application of the hydrophilic finish onto the non- woven material facilitates the wetting of it by the liquid formulas. However, the hydrophilic finish allows the liquid formulas to migrate only the void space among fibers in the non-woven material, i.e., the substrate, due to the hydrophobic nature of the fibers itself.

[0032] FIG. 3 shows a sheet-like cosmetic product, that is, the facial mask 1, according to one embodiment of the present invention which is manufactured using the sheet-like substrate described with reference to FIG. 1 and FIGS. 2Ato 2D. In this facial mask 1, contrary to the unfinished mask shown in FIG. 1, multiple formulas having different cosmetic benefits have already been applied to (impregnated in) respective targeted zones of the substrate. More specifically, a first formula has been applied to the first targeted zones 200 shown using slanted lines in FIG. 3. A second formula has been applied to the second targeted zones 210 shown using dots in FIG. 3. A third formula has been applied to the third targeted zone 220 shown using cross-hatched lines in FIG. 3. Accordingly, the substrate forming the mask 1 has the first targeted zones 200 surrounding the second and third targeted zones 210 and 220, the second targeted zones 210 which generally surround the eye openings 10, and the third targeted zone 220 which generally surrounds the mouth opening 12 and most of the nose flap 16. The area corresponding to the nose flap 16 is also included in the first targeted zone 200.

[0033] In order to apply the multiple formulas to the respective targeted zones 200, 210, and 220 on the substrate, a well-known printing technique such as a skin printing system or a digital printing system can be used. In particular, for this purpose, the Chromo Jet System (available from Zimmer Maschinenbau GmbH in Austria) in which liquid formulas can be applied to the substrate by air pressure via electronically controlled valves is preferable.

[0034] In this embodiment shown in Fig. 3, formulas have been applied to the sheet-like substrate so that there are gaps between two adjacent zones, and furthermore, there are gaps also in the same zone. That is, formulas have not been applied to many linear portions on the sheet-like substrate that ultimately become the gaps, by properly controlling the printing system. More specifically, there is a gap 300 between the first targeted zones 200 and the second targeted zones 210. Similarly, there are gaps 310 and 320 between the first targeted zones 200 and the third targeted zones 220. The gap 320 overlaps the slit for the nose of the mask 1 (see Fig. 1). Furthermore, there are gaps 330 between the second targeted zones 210 and the third targeted zones 220. In the first targeted zones 200, there are four gaps 340 generally extending in the radial direction of the mask 1. In addition, in the second targeted zones 210, there are three gaps 350 generally extending in the radial direction of the mask 1, and two of these gaps 350 are respectively aligned with each of the upper gaps 340 in the first targeted zones 200. The above stated gaps 300 to 350 of the mask 1 were brought about by the sheet-like substrate according to one embodiment of the present invention having the function of limiting the migration of formulas applied on the respective targeted zones 200 to 220. In an alternative embodiment, these gaps may not be provided between two adjacent zones and/or within the same zone. In another alternative embodiment, two or more than four formulas may be applied to the sheet-like substrate with or without the above stated gaps.

[0035] As is apparent from the above description, the substrate according to one embodiment of the present invention has a function of limiting the migration of formulas applied on targeted zones thereof. Accordingly, the substrate according to one embodiment of the present invention is suitable for applying multiple kinds of formulas on respective targeted zones with little or no migration of the applied formulas between adjacent targeted zones. Moreover, due to the low volume density of the substrate itself, the weight of the mask can be reduced, which contributes to good adhesion of the mask to the face of the user.

Test Example 1 : Effect of preventing migration of non-harsh skin formulas

[0036] In order to confirm the effect of the present invention, the substrate for the facial mask shown in FIG. 1 was prepared. The core of the fibers forming the substrate is made of polypropylene (PP), while the sheath of the fibers is made of polyethylene (PE). The substrate is treated with acrylate polymer as a hydrophilic finish. The areal density of this substrate is 20 grams/m² (gsm) and the thickness thereof is 0.76 mm, so the volume density is about 0.03 grams/cm³. Furthermore, for comparison, a conventional substrate for a facial mask was prepared. This comparative substrate consists of 100% viscose. The areal density of the comparative substrate is 50 grams/m² (gsm) and the thickness thereof is 0.40 mm, so the volume density of the comparative substrate is about 0.13 grams/cm³.

[0037] As two non-harsh skin formulas to be applied to the substrates described above, Formula- 1 and Formula-2 containing the ingredients shown in following Table 2 in the ratio also shown in the same table were prepared. Ingredient Formula- 1 (%) Formula-2 (%)

Water 88.94 88.94

Glycerin 5 5

Butylene glycol 3 3

Pentylene glycol 2 2

Phenoxyethanol 0.5 0.5

Red dye 0.06 0

Hyaluronic acid 0.5 0.5

Blue dye 0 0.06

Table 2: Proportion of ingredients of Formulas- 1 and -2

Subsequently, using the Chromo Jet System described above, Formula- 1 was applied to the first targeted zone (indicated by reference numeral 200 in FIG. 3) of each substrate and Formula-2 to the second and third targeted zones (indicated by reference numerals 210 and 220 in FIG. 3) of each substrate. The application amount of the formulas is 15 grams in total for both substrates. FIG. 4A shows the state of the substrate according to one embodiment of the present invention after a certain period of time has elapsed after application of the formulas. FIG. 4B also shows the state of the comparative substrate after a certain period of time has elapsed after application of the formulas. It should be noted that in both of FIGS. 4 A and 4B, the photograph is changed to a diagram for clarity.

[0039] As shown in FIG. 4B, in the comparative substrate, the boundary between the zone where Formula- 1 was applied and the zone where Formula-2 was applied was markedly blurred. This means that a migration of formulas, that is, a mixing of formulas, occurs between the zone where Formula- 1 was applied and the zone where Formula-2 was applied. On the other hand, as shown in FIG. 4A, in the substrate according to one embodiment of the present invention, the boundary between the zone where Formula- 1 was applied and the zone where Formula-2 was applied was clear. This means that a migration of formulas, that is, a mixing of formulas does not occur between the zone where Formula- 1 was applied and the zone where Formula-2 was applied.

Test Example 2: Effect of preventing migration of harsh skin formulas

[0040] In order to confirm the effect of the present invention with regard to harsh skin formulas such as low pH formulas or high pH formulas, a substrate for a facial mask identical to that used in Test Example 1 was prepared. Furthermore, as two formulas to be applied to this substrate, Formula- 1 shown in the above Table 2, and a chemical peeling formula containing the ingredients shown in following Table 3 in the ratio also shown in the same table, i.e., Formula-3, were prepared. Chemical peeling formulas are one example of low pH formulas, whose pH ranges from 1 to 4. On the other hand, one example of high pH formulas is skin bleaching formulas, whose pH ranges from 7 to 11.

Table 3 : Proportion of ingredients of Formula-3

[0041] Subsequently, using the Chromo Jet System described above, Formula- 1 was applied to the second and third targeted zones (indicated by reference numerals 210 and 220 in FIG. 3) of the substrate, that is, sensitive areas of the face such as around the eyes and mouth, and Formula-3 to the first targeted zones (indicated by reference numeral 200 in FIG. 3) of the substrate, that is, less sensitive areas of the face. FIG. 5 shows the state of the substrate after a certain period of time has elapsed after application of the formulas. It should be noted that in FIG. 5, the photograph is changed to a diagram for clarity.

[0042] As shown in FIG. 5, in Test Example 2, there was no migration of the chemical peeling formula, i.e., Formula-3, applied to the first targeted zone to the adjacent second and third targeted zones, so that at the boundary between the first targeted zone and the second and third targeted zones, mixing of Formula- 1 and Formula-3 has not occurred. Furthermore, as shown in FIG. 5, the gaps were clearly formed in the first targeted zone. This means that migration of Formula-3 has not occurred even within the same targeted zone.

[0043] Preferred embodiments of the present invention have been explained above with reference to the drawings. However, the present invention is not limited to these embodiments, and various modifications and changes may be made to the above- described embodiments without deviating from the gist and scope of the present invention, and such modifications and changes are included in the scope of the present invention.

Claims

1. A sheet-like substrate, in which it is intended that respective targeted zones to which two or more kinds of formulas are to be applied respectively be assigned to the substrate,

wherein the substrate is formed of a nonwoven material, and

wherein a volume density of the nonwoven material is between 0.01 grams/cm³ and 0.08 grams/cm³.

2. The substrate according to claim 1 , wherein fibers forming the nonwoven material are hydrophobic fibers.

3. The substrate according to claim 1 or 2, wherein fibers forming the nonwoven material are bi-component fibers comprising two kinds of components having mutually different melting points.

4. The substrate according to claim 3, wherein at least one of the two kinds of components is selected from the group consisting of polyester, derivatives of polyester, Nylon 6, Nylon 66, polypropylene, polyethylene, polylactic acid, polystyrene, and HDPE.

5. The substrate according to claim 3 or 4, wherein as seen in the cross section of the fibers, the two kinds of components are arranged such that one forms a core of the fibers and the other forms a sheath of the fibers surrounding the core.

6. The substrate according to claim 5, wherein the core is disposed at the center of the sheath or is disposed eccentrically from the center of the sheath.

7. The substrate according to claim 3 or 4, wherein as seen in the cross section of the fibers, the two kinds of components are arranged adjacent to each other in the diametrical direction of the fibers and/or in the circumferential direction of the fibers.

8. The substrate according to any one of claims 1 to 7, wherein the nonwoven material is treated with a hydrophilic finish.

9. The substrate according to claim 8, wherein the hydrophilic finish is a polymer composed of one or more monomers selected from the group consisting of acrylic acid, methacrylic acid, glutamic acid, β-carboxyethyl acrylate, maleic acid, and monoesters of maleic acid.

10. The substrate according to any one of claims 1 to 9, wherein the substrate is used for manufacturing sheet-like cosmetic products.

11. The substrate according to claim 10, wherein the sheet-like cosmetic products are one of facial masks, patches and wipes.

12. A sheet-like cosmetic product, comprising a substrate according to any one of claims 1 to 11 and two or more kinds of formulas impregnated in the substrate.

13. The product according to claim 12, wherein the product is one of a facial mask, patch and wipe.