Facial cleansing puff

Abstract

To provide a face-washing puff excellent in moisture retention and antibacterial properties.SOLUTION: The puff 10 for face washing is obtained by using a soft foam material as a core material 1 and covering the core material with a pile knitted fabric 2, wherein the pile knitted fabric 2 contains rayon short fibers A containing cotton / marine collagen peptide and polylactic acid fiber long fibers B.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a facial cleansing puff. [Background technology]

[0002] BACKGROUND ART Conventionally, a facial cleansing puff has been used in which a sponge-like core material is covered with cloth or the like. For example, Patent Document 1 discloses a facial cleansing puff that has a soft foam core wrapped in pile knit fabric, the pile knit fabric being composed of cotton / chitin chitosan viscose staple fiber A and polylactic acid fiber long fiber B. The facial cleansing puff disclosed in Patent Document 1 can efficiently remove dirt, oil, and waste products from the surface of the skin without damaging the skin. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-289377 Summary of the Invention [Problem to be solved by the invention]

[0004] However, there is a demand for the development of a more functional facial cleansing puff. As described above, by using a facial cleansing puff, dirt, oil, and waste products are removed from the surface of the skin. However, depending on the method of use, the necessary oils on the surface of the skin may be excessively removed, resulting in a decrease in the skin's moisture content. In addition, since a facial cleansing puff is generally used in a wet state, bacteria may grow depending on the frequency, method, and environment of use. The present disclosure has been made in view of the above, and relates to providing a facial cleansing puff that has excellent moisturizing and antibacterial properties. [Means for solving the problem]

[0005] The present disclosure includes the following aspects. <1> A facial cleansing puff (10) has a core (1) of a soft foam material and is wrapped in a pile knit fabric (2), the pile knit fabric (2) containing cotton / marine collagen peptide-containing rayon staple fiber (A) and polylactic acid fiber long fiber (B), and has a loop pile section (5) formed from an opening (4) provided in a base section (3) of the pile knit fabric (2) without twisting the cotton / marine collagen peptide-containing rayon staple fiber (A) and the polylactic acid fiber long fiber (B), the base of the cotton / marine collagen peptide-containing rayon staple fiber (A) is supported by the polylactic acid fiber long fiber (B), and the cotton / marine collagen peptide-containing rayon staple fiber (A) stands up. <2> The fabric has a plurality of loop pile sections 5 and loop-free sections 6 alternating therewith. <1> 1. A facial cleansing puff according to claim 1. <3> The pile knit fabric 2 encases one side of the core material 1. <1> or <2> 1. A facial cleansing puff according to claim 1. <4> The pile knit fabric 2 encases both sides of the core material 1. <1> or <2> 1. A facial cleansing puff according to claim 1. <5> The core material 1 is a soft urethane foam material. <1> ~ <4> 1. A facial cleansing puff according to any one of the preceding items. <6> The core material 1 is a soft urethane foam material from which the cell membrane has been removed. <1> ~ <4> 1. A facial cleansing puff according to any one of the preceding items. <7> The number of cells of the soft urethane foam material is 10 cells / inch to 60 cells / inch. <5> or <6> 1. A facial cleansing puff according to claim 1. <8> The core material 1 has a structure in which multiple layers are laminated. <1> ~ <7> 1. A facial cleansing puff according to any one of the preceding items. <9> In the cotton / marine collagen peptide-containing rayon staple fiber, the content ratio of cotton to marine collagen peptide-containing rayon staple fiber is 60% to 80% / 40% to 20% by mass. <1> ~ <8> 1. A facial cleansing puff according to any one of the preceding items. <10> The pile knit fabric 2 contains squalane, silk protein, and monoglyceride. <1> ~ <9> 1. A facial cleansing puff according to any one of the preceding items. [Effects of the Invention]

[0006] According to the present disclosure, a facial cleansing puff having excellent moisturizing and antibacterial properties is provided. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a plan view of one embodiment of a facial cleansing puff of the present disclosure. [Figure 2] FIG. 2 is a central cross-sectional view of the facial cleansing puff of FIG. [Figure 3] FIG. 3 is an enlarged cross-sectional view of the terry knit fabric of the face wash puff of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment of the present disclosure will be described in detail below. However, the present disclosure is not limited to the following embodiment. In the following disclosure, components (including element steps, etc.) are not essential unless otherwise specified. The same applies to numerical values ​​and their ranges, and do not limit the present disclosure.

[0009] In the present disclosure, numerical ranges indicated using "to" include the numerical values ​​before and after "to" as the lower and upper limits, respectively. In the numerical ranges described in stages in this disclosure, the upper or lower limit value described in one numerical range may be replaced with the upper or lower limit value of another numerical range described in stages. Furthermore, in the numerical ranges described in this disclosure, the upper or lower limit value of that numerical range may be replaced with a value shown in the examples. In the present disclosure, when a composition contains multiple substances corresponding to each component, the content of each component in the composition means the total content of the multiple substances present in the composition, unless otherwise specified. In the present disclosure, when multiple elements are listed using "or" or "or," unless otherwise expressly stated, it does not exclude the selection of a combination of the multiple elements unless a technical contradiction arises. In the present disclosure, even if an element is referred to in the singular, unless expressly stated otherwise, it does not exclude the presence of a plurality insofar as it does not create a technical contradiction. In the present disclosure, multiple exemplary aspects described separately may be combined with each other to form a new aspect, unless they contradict each other. When embodiments of the present disclosure are described with reference to the drawings, the configuration of the embodiment is not limited to the configuration shown in the drawings. Furthermore, the sizes of the components in each drawing are conceptual, and the relative size relationships between the components are not limited to these.

[0010] <Facial cleansing puff> The facial cleansing puff of the present disclosure is a facial cleansing puff 10 having a core 1 made of a soft foam material and wrapped in a pile knit fabric 2, wherein the pile knit fabric 2 contains cotton / marine collagen peptide-containing rayon staple fiber A and polylactic acid fiber long fiber B, and an opening 4 provided in a base portion 3 of the pile knit fabric 2 has a loop pile portion 5 formed by not twisting the cotton / marine collagen peptide-containing rayon staple fiber A and the polylactic acid fiber long fiber B together, and the base of the cotton / marine collagen peptide-containing rayon staple fiber A is supported by the polylactic acid fiber long fiber B, causing the cotton / marine collagen peptide-containing rayon staple fiber A to stand up.

[0011] The facial cleansing puff of the present disclosure has excellent moisturizing and antibacterial properties. The action of the facial cleansing puff of the present disclosure is presumed to be as follows. The cotton / marine collagen peptide-containing rayon staple fiber A contains marine collagen peptide. Because marine collagen peptide has moisture-retaining properties, a facial cleansing puff containing marine collagen peptide enhances the moisture retention of the subject (e.g., skin) using the facial cleansing puff.

[0012] Rayon staple fibers containing marine collagen peptides are known to have excellent moisturizing properties, UV protection, and deodorizing effects. Therefore, due to these functionalities, rayon staple fibers containing marine collagen peptides have been used in clothing, such as underwear, and bedding. However, the inventors of the present disclosure were the first to apply rayon staple fibers containing marine collagen peptides to a facial cleansing puff, i.e., an article that is used in a wet state. As a result, the facial cleansing puff of the present disclosure has excellent antibacterial properties, although the reason is unclear.

[0013] <Pile knit fabric> The facial cleansing puff of the present disclosure comprises a core material wrapped in a pile knit fabric. The pile knit fabric contains cotton / marine collagen peptide-containing rayon staple fiber A and polylactic acid fiber long fiber B. From the viewpoint of moisture retention and antibacterial properties, the pile knit fabric is preferably composed of cotton / marine collagen peptide-containing rayon staple fiber A and polylactic acid fiber long fiber B.

[0014] (Cotton / Marine collagen peptide-containing rayon staple fiber A) Cotton / marine collagen peptide-containing rayon staple fiber A is a fiber made by twisting together cotton and marine collagen peptide-containing rayon staple fiber.

[0015] Rayon is a regenerated fiber obtained from the cellulose fiber contained in wood pulp. Rayon has higher moisture absorption than cotton and has excellent texture. Therefore, by combining the moisture-retaining properties of marine collagen peptides with the moisture-retaining properties of rayon, collagen peptide-containing fibers with excellent moisture-retaining properties can be obtained.

[0016] From the viewpoint of preventing the marine collagen peptide from falling off, the marine collagen peptide-containing rayon staple fiber is preferably one obtained by kneading the marine collagen peptide with rayon. Specifically, the marine collagen peptide-containing rayon staple fiber is preferably one obtained by blending a marine collagen peptide hydrolyzed solution with a cellulose solution constituting rayon and spinning the mixture. Alternatively, the marine collagen peptide-containing rayon staple fiber may be one obtained by impregnating rayon in a marine collagen peptide-containing solution and adhering the marine collagen peptide to the surface of the rayon.

[0017] Marine collagen peptides are highly safe natural moisturizing ingredients. From the viewpoint of reducing environmental impact, the marine collagen peptides are preferably collagen peptides derived from fish, more preferably collagen peptides derived from fish skin, bones, or scales, and even more preferably collagen peptides derived from fish scales.

[0018] Marine collagen peptides are obtained by lowering the molecular weight of marine collagen through hydrolysis, etc. The weight-average molecular weight of the marine collagen peptides is preferably 5,000 or less, and more preferably 500 to 4,000. In the present disclosure, the weight average molecular weight can be measured by gel chromatography.

[0019] The content ratio of cotton to marine collagen peptide-containing rayon staple fibers in the cotton / marine collagen peptide-containing rayon staple fibers A is not particularly limited, and cotton may not be contained. From the viewpoint of moisture retention and antibacterial properties, the content ratio of cotton to marine collagen peptide-containing rayon staple fibers in the cotton / marine collagen peptide-containing rayon staple fibers A is preferably 60% to 80% / 40% to 20%, more preferably 65% ​​to 75% / 35% to 25%, and may be, for example, 70% / 30% by mass. By making the cotton content in the cotton / marine collagen peptide-containing rayon staple fiber A 60% or more by mass, the feel on the skin becomes more pleasant. By setting the content ratio of marine collagen peptide-containing rayon staple fibers in cotton / marine collagen peptide-containing rayon staple fibers A to 20% or more by mass, the moisture retention and antibacterial properties become better.

[0020] From the viewpoint of the effect of fiber softness on skin contact, the thickness of the cotton / marine collagen peptide-containing rayon staple fiber A is preferably 30T (tex) to 70T, more preferably 50T to 60T, and even more preferably 60T. When the thickness of the cotton / marine collagen peptide-containing rayon staple fiber A is within the above range, the fiber is neither too hard nor too soft, and the pile easily functions.

[0021] Specific examples of cotton / rayon staple fibers A containing marine collagen peptides include FILAGEN (registered trademark) manufactured by GEP Spinning Co., Ltd. FILAGEN is made from cellulose fibers made from wood pulp and collagen peptides extracted from the scales of milkfish (known as milkfish in Taiwan). Milkfish is a fish that is harvested in large quantities worldwide, and milkfish scales have traditionally been discarded, so reusing them will reduce environmental impact. Furthermore, because marine collagen peptides are biodegradable, the environmental impact is minimal when products containing marine collagen peptides are disposed of. In particular, because FILAGEN incorporates marine collagen peptides into rayon, the marine collagen peptides are less likely to fall off from the rayon even after repeated washing of products containing FILAGEN, ensuring the functionality of the marine collagen peptides lasts semi-permanently.

[0022] (Polylactic acid fiber B) Since fine fibers make it easier to remove dirt from pores, the thickness of the polylactic acid fiber-based long fiber B is preferably less than 2 dt (decitex).

[0023] A specific example of the polylactic acid fiber-based long fiber B is Terramac (registered trademark) manufactured by Unitika Ltd. Terramac is a polylactic acid fiber extracted from grains, which is resistant to settling, has mild antibacterial properties, and is a fiber that is less irritating to the skin.

[0024] (Other fibers) The pile knitted fabric may contain other fibers in addition to the cotton / marine collagen peptide-containing rayon staple fiber A and the polylactic acid fiber long fiber B. The other fibers may be synthetic fibers, semi-synthetic fibers, regenerated fibers, or natural fibers, and two or more of these may be blended in any ratio.

[0025] Examples of synthetic fibers include polyester, polyamide, polyurethane, acrylic, vinylon, vinyl chloride, polypropylene, and microfiber. Examples of semi-synthetic fibers include diacetate and triacetate. Protein-based semi-synthetic fibers obtained by graft polymerization of natural protein and acrylonitrile can also be used. For example, protein-based semi-synthetic fibers using milk casein as the natural protein have a texture similar to that of silk that is gentle on the skin. By using such fibers in the combined structure of long fibers and / or short fibers of the present disclosure, the properties of being gentle on the skin and being comfortable to use can be better exhibited.

[0026] Examples of regenerated fibers include regenerated cellulose fibers such as rayon, cupra, and lyocell, as well as soy protein fibers. Soy protein fibers are regenerated fibers obtained by extracting spherical proteins from soybean grains, adding processing agents, and subjecting them to a wet processing method, and are fibers that are moisture permeable, breathable, and have a soft texture.

[0027] Examples of natural fibers include cotton, hemp, kenaf, pulp, wool, and silk.

[0028] (Pile knit fabric shape) Conventionally used facial cleansing puffs have a generally flat shape (e.g., oval shape) with a sponge core covered with cloth or the like. One embodiment of the facial cleansing puff of the present disclosure and the shape of the terry knit fabric in that embodiment will be described with reference to Figures 1 to 3. Note that Figures 1 to 3 are explanatory diagrams by way of example and do not limit the embodiments of the present disclosure.

[0029] The facial cleansing puff of the present disclosure is a facial cleansing puff 10 having a core 1 made of a soft foam material and wrapped in a pile knit fabric 2, and the pile knit fabric 2 preferably contains cotton / marine collagen peptide-containing rayon-based short fibers A and polylactic acid fiber-based long fibers B, and openings 4 provided in a base portion 3 of the pile knit fabric 2 preferably have loop piles for the cotton / marine collagen peptide-containing rayon-based short fibers A and the shrunk polylactic acid fiber-based long fibers B.

[0030] This is because the cotton / marine collagen peptide-containing rayon staple fiber A and the polylactic acid fiber long fiber B are passed through openings 4 in the ground portion 3 of the pile knit fabric 2 to form a loop pile portion 5 without being twisted together, and then the polylactic acid fiber long fiber B in the loop pile portion 5 is shrunk by heat setting, so that the base of the cotton / marine collagen peptide-containing rayon staple fiber A is supported by the polylactic acid fiber long fiber B, causing the cotton / marine collagen peptide-containing rayon staple fiber A to stand up.

[0031] The face wash puff of the present disclosure is formed by supporting the base of the cotton / marine collagen peptide-containing rayon staple fiber A in the loop pile portion 5 of the pile knit fabric 2 with heat-shrunk polylactic acid fiber long fiber B, thereby preventing the loop pile portion of the cotton / marine collagen peptide-containing rayon staple fiber A from becoming worn. This allows the face wash puff of the present disclosure to have comfortable drainage properties, be gentle on the surface of human skin, and efficiently remove dirt, grease, and waste products from the surface of the skin.

[0032] The cotton / marine collagen peptide-containing rayon staple fiber A used in the present disclosure is soft but prone to sagging. The polylactic acid fiber long fiber B is heat-sensitive and tends to shrink when heat-set. The facial cleansing puff of the present disclosure utilizes these properties, and the base of the soft cotton / marine collagen peptide-containing rayon staple fiber A is supported and raised by the polylactic acid fiber long fiber B, which is a shrunken and loose thread, thereby preventing the cotton / marine collagen peptide-containing rayon staple fiber A from sagging. As described above, by combining the specific short fibers A and long fibers B, an excellent facial cleansing puff 10 can be obtained that is particularly soft to the touch and does not easily become worn out even after prolonged use.

[0033] More specifically, it is preferable to form five or six loop pile sections 5 from the same opening 4 without twisting the fibers A and B together, then form a non-tile section 6, and repeat this process to form a pile knitted fabric 2, which is then heat-set to produce the pile knitted fabric 2 used in the facial cleansing puff 10. The formation of this island pattern of loop pile sections 5 and non-tile sections 6 takes into consideration the lathering ability of the facial cleanser, the light weight, and breathability of the facial cleansing puff 10.

[0034] The pile knit fabric 2 may be a fabric having a loop pile shape such as a single-sided or double-sided circular knit pile structure, a tricot knit, or a raschel knit.

[0035] From the viewpoints of foaming properties of the face wash, light weight, and breathability, it is preferable that the pile knit fabric 2 have a plurality of loop pile sections 5 and sections 6 without loop pile alternately.

[0036] From the viewpoint of the lathering properties of the facial cleanser, the facial cleansing puff of the present disclosure is preferably configured such that the pile knit fabric 2 encases a portion of the core material 1, more preferably encases one side of the core material 1, and particularly preferably encases both sides of the core material 1, i.e., particularly preferably encases the entire core material 1.

[0037] The wrapping method may be a known method, for example, the core material 1 may be enclosed and the terry knit fabric 2 and its surroundings may be bound together, or the terry knit fabric 2 may be placed on only one side of the core material 1 and bonded together.

[0038] (Post-processing of pile knit fabric) The pile knitted fabric 2 is preferably post-processed. From the viewpoint of moisturizing and antibacterial properties, the pile knit fabric 2 of the facial cleansing puff of the present disclosure preferably contains squalane, silk protein, and monoglyceride. In the facial cleansing puff of the present disclosure, squalane, silk protein, and monoglyceride (or a composition containing squalane, silk protein, and monoglyceride) is preferably applied to the pile knit fabric 2 by post-processing. Squalane, silk protein, and monoglyceride contain many cosmetic ingredients. Note that squalane, silk protein, and monoglyceride have traditionally been used in clothing such as underwear, bedding, towels, etc. By applying squalane, silk protein, and monoglyceride to the pile knit fabric 2 as a post-processing step, the squalane, silk protein, and monoglyceride, which contain a large amount of cosmetic ingredients, are attached to the surface of the pile knit fabric 2. As a result, the squalane, silk protein, and monoglyceride, together with the cotton / marine collagen peptide-containing rayon staple fiber A and polylactic acid long fiber B that make up the pile knit fabric 2, exhibit moisture retention and antibacterial properties.

[0039] The squalane is preferably sugar squalane, which is derived from sugarcane and protects the skin. Silk protein has a strong buffering effect in response to changes in temperature and humidity outside the body, and helps to condition the skin. The monoglyceride is preferably an unsaturated fatty acid monoglyceride, more preferably undecylenic acid monoglyceride. The monoglyceride cleanses the skin.

[0040] The composition containing squalane, silk protein, and monoglyceride is preferably in the form of particles containing squalane, silk protein, and monoglyceride, and more preferably in the form of particles with a vesicle structure in which a layer containing silk protein (i.e., an aqueous layer) and a layer containing squalane and monoglyceride (i.e., an oil layer) are alternately present.

[0041] Specific examples of compositions containing squalane, silk protein, and monoglyceride include TASTEX (registered trademark) SSU 04 from Tanatex Chemicals Japan Co., Ltd. TASTEX® SSU 04 is a vesicle structure in which layers containing silk protein and layers containing squalane and monoglycerides alternate.

[0042] <Core material> The facial cleansing puff of the present disclosure comprises a core material wrapped in a terry knit fabric. The core material 1 is a soft foam material. It is preferable that the core material 1 be a soft urethane foam material, as this material has good drainage, keeping the puff hygienic, has a foaming effect due to its moderate elasticity, and reduces excessive friction on the skin when washing the face. The soft urethane foam material has interconnected air bubbles, making it light, soft, and elastic.

[0043] The core material 1 is preferably a soft urethane foam material from which the cell membrane has been removed.

[0044] Flexible urethane foam is formed by bubbles containing foaming gas, and the membrane that forms these bubbles is called the cell membrane. Flexible urethane foam, which has the cell membrane removed but leaves the bubble skeleton, has a strengthened foam skeleton, is resistant to deterioration by acids, alkalis, other chemicals, cosmetics, etc., and has excellent foaming and drainage properties for facial cleansers. The method for removing the cell membrane (that is, membrane removal treatment) is not particularly limited, and the cell membrane may be removed with a solvent or by explosion.

[0045] In view of being used for face washing, the number of cells in the soft urethane foam material is preferably 10 cells / inch to 60 cells / inch. In the present disclosure, the number of cells can be measured based on JIS K 6400-1.

[0046] From the viewpoint of the foaming properties of the facial cleanser, the core material 1 preferably has a structure in which multiple layers are laminated, and more preferably has a structure in which multiple foam materials with different cell counts are laminated.

[0047] <Antibacterial> The facial cleansing puff of the present disclosure also has excellent antibacterial properties. Specifically, according to the bacterial liquid absorption method specified in JIS L1902:2015, the antibacterial activity value against Staphylococcus aureus (NBRC 12732) is preferably 2.0 or higher, more preferably 4.0 or higher, and even more preferably 5.0 or higher. Note that an antibacterial activity value of 2.0 or higher can be said to have antibacterial activity.

[0048] <Manufacturing method of face wash puff> The method for producing a facial cleansing puff of the present disclosure includes using a soft foam core 1 and encasing the core 1 in a pile knit fabric 2, the pile knit fabric 2 containing cotton / marine collagen peptide-containing rayon staple fibers A and polylactic acid fiber long fibers B, and forming a loop pile section 5 through openings 4 formed in a base section 3 of the pile knit fabric 2 without twisting the cotton / marine collagen peptide-containing rayon staple fibers A and the polylactic acid fiber long fibers B together, followed by heat setting to shrink the polylactic acid fiber long fibers B in the loop pile section 5, supporting the base of the cotton / marine collagen peptide-containing rayon staple fibers A with the polylactic acid fiber long fibers B, and causing the cotton / marine collagen peptide-containing rayon staple fibers A to stand up.

[0049] In the method for producing a facial cleansing puff, the cotton / marine collagen peptide-containing rayon-based short fiber A, the polylactic acid-based long fiber B, the core material 1, the pile knit fabric 2, the base portion 3, the opening 4, and the loop pile portion 5 are each as described above. Preferred embodiments of the facial cleansing puff produced by the method for producing a facial cleansing puff are also as described above. [Example]

[0050] Hereinafter, the present disclosure will be described more specifically with reference to examples, but the present disclosure is not limited to the following examples as long as it does not deviate from the gist of the disclosure.

[0051] The facial cleansing puff shown in Figs. 1 to 3 was produced by the following procedure.

[0052] <Material> FILAGEN (registered trademark) manufactured by GEP Spinning Co., Ltd. was used as cotton / marine collagen peptide-containing rayon staple fiber A. Details of FILAGEN (registered trademark) are shown below. Marine collagen peptide source: Milkfish scales Thickness: 60T The ratio of cotton / marine collagen peptide-containing rayon staple fiber A to cotton / marine collagen peptide-containing rayon staple fiber is 70% / 30% (by mass).

[0053] Terramac (registered trademark) manufactured by Unitika Ltd. was used as the polylactic acid fiber-based long fiber B. Details of Terramac (registered trademark) are shown below. ·Origin: Grain Thickness: Less than 2dt

[0054] <Production of pile knit fabric> A pile knit fabric was obtained consisting of cotton / marine collagen peptide-containing rayon staple fiber A and polylactic acid fiber long fiber B. The FILAGEN content of the entire pile knit fabric was 16% by mass. Specifically, five consecutive loop pile sections 5 were formed from the same openings 4 in the ground section 3 of the pile knit fabric 2, followed by one section 6 where no loop pile was formed, and this was repeated continuously in the vertical and horizontal directions to obtain the pile knit fabric 2. The loop pile 5 was formed by twisting together cotton / marine collagen peptide-containing rayon staple fiber A and polylactic acid fiber long fiber B. The fibers constituting the ground section 3 may also be selected as appropriate, but in this example it is made of 100% polyester fiber.

[0055] The resulting pile knit fabric 2 was then heat set to heat shrink the polylactic acid long fiber B, and the bases of the loops of the cotton / marine collagen peptide-containing rayon staple fiber A were supported by the heat-shrinkable polylactic acid long fiber B, resulting in a structure in which the staple fiber A was set upright. That is, the resulting pile knit fabric 2 had a ground portion 3 formed with a relatively coarse weave, and five-strand-shaped loop pile portions 5 of the cotton / marine collagen peptide-containing rayon staple fiber A and groove-like portions 6 without any loop pile portions were present alternately.

[0056] The resulting pile knitted fabric was post-processed using TASTEX (registered trademark) SSU 04 from Tanatex Chemicals Japan Co., Ltd.

[0057] <Manufacturing face wash puffs> A soft urethane foam material with a cell count of 25.3 cells / inch and from which the cell membrane had been removed was used as the core 1. By tying together the pile knit fabric 2 and its periphery while enclosing the core 1, a facial cleansing puff was obtained in which both sides of the core 1 were wrapped in the pile knit fabric.

[0058] <Moisturizing properties> The obtained facial cleansing puff had excellent moisturizing properties because it contained cotton / marine collagen peptide-containing rayon-based short fiber A.

[0059] <Antibacterial> The antibacterial properties of the obtained facial cleansing puff were measured. According to the bacterial liquid absorption method specified in JIS L1902:2015, the antibacterial activity value against Staphylococcus aureus NBRC 12732 was 5.9, demonstrating excellent antibacterial properties.

[0060] From the above, a facial cleansing puff with excellent moisturizing and antibacterial properties was obtained. Furthermore, in the obtained facial cleansing puff, the cotton / marine collagen peptide-containing rayon staple fiber A arranged in a loop shape does not wear out, does not damage the skin, and can efficiently remove dirt, oil, and waste products from the surface of the skin. [Explanation of symbols]

[0061] A: Cotton / rayon staple fiber containing marine collagen peptide B: Polylactic acid long fiber 1: Core material 2: Pile knit fabric 3: The ground part of the pile knit fabric 4: Opening with loop pile 5: Loop pile section 6: Area without loop pile 10: Facial cleansing puff

Claims

1. A face-washing puff (10) has a core (1) of a soft foam material and is wrapped in a pile knit fabric (2), the pile knit fabric (2) contains cotton / marine collagen peptide-containing rayon staple fibers (A) and polylactic acid fiber long fibers (B), and has a loop pile section (5) formed from an opening (4) provided in a base section (3) of the pile knit fabric (2) without twisting the cotton / marine collagen peptide-containing rayon staple fibers (A) and the polylactic acid fiber long fibers (B), the base of the cotton / marine collagen peptide-containing rayon staple fibers (A) is supported by the polylactic acid fiber long fibers (B), and the cotton / marine collagen peptide-containing rayon staple fibers (A) are allowed to stand up.

2. 2. The facial cleansing puff according to claim 1, having a plurality of loop pile portions (5) and non-loop pile portions (6) arranged alternately.

3. 3. The facial cleansing puff according to claim 1, wherein the pile knit fabric (2) encases one side of the core material (1).

4. 3. The facial cleansing puff according to claim 1, wherein the pile knit fabric (2) encases both sides of the core material (1).

5. 3. The facial cleansing puff according to claim 1, wherein the core material is a soft urethane foam material.

6. 3. The facial cleansing puff according to claim 1, wherein the core material is a soft urethane foam material from which a cell membrane has been removed.

7. 6. The facial cleansing puff according to claim 5, wherein the number of cells of the soft urethane foam material is 10 cells / inch to 60 cells / inch.

8. 3. The facial cleansing puff according to claim 1, wherein the core material (1) has a structure in which a plurality of layers are laminated.

9. 3. The facial cleansing puff according to claim 1, wherein the cotton / marine collagen peptide-containing rayon staple fiber composition has a content ratio of cotton to marine collagen peptide-containing rayon staple fiber of 60% to 80% / 40% to 20% by mass.

10. 3. The facial puff according to claim 1, wherein the pile knit fabric (2) contains squalane, silk protein, and monoglyceride.

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