TWI379023B - Skin care tool and a preparation method thereof - Google Patents

Description

1379023 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a skin care appliance made of nanofibers. The skin care of the present invention refers to the "skin cleansing and skin care" of the whole body, and the skin care appliance refers to all the appliances used for this purpose. [Prior Art] It is extremely important to maintain ‘the promotion of skin health, prevention of acne and swelling, etc., in order to effectively remove old waste such as makeup or sebum when washing your face. However, in the depth of the skin groove or deep in the pores, it is not easy to remove by the general method of washing. In addition, in recent years, "the cosmetic material that does not fall off" or the "sunscreen material that does not fall off" developed by the advancement of the formulation technology can improve the durability and the effect, but it is impossible to wash and clean. The problem of completely removing these materials. There are various proposals for detergents for such cosmetic materials. However, even in the case of the oily cleaning method in which the detergency is the highest, the cosmetic materials or sebum stains in the pores cannot be completely removed. In addition, recent cosmetic materials are not only for the face in the market, but also for the beautification of the whole body, particularly the foot or the chest, and the same problems as described above exist. In addition, a method of improving the washing effect is generally known in the case of using a very fine fiber skin care device when washing a face. For example, a skin care device using an ultrafine fiber having a fineness of 0.001 to ldtex is disclosed (for example, Patent Document 1). However, in this case, the fineness of the ultrafine fibers is passed through the extremely fine foam formed by the soap to exhibit the cleaning effect (for example, refer to Patent Document 1, paragraph No. 0020), and the residual property as described above cannot be sufficiently completely removed. Makeup materials, etc. Further, a skin care device which directly wipes off dirt or an old stratum corneum with an ultrafine fiber having a fineness of 0.001 to Idtex (for example, Patent Documents 2 and 3) is disclosed. However, the method of directly rubbing the fine fibers of 0.001 to ldtex to remove dirt or old horny has caused excessive irritation and friction to the skin, resulting in pigmentation or hypertrophy of the stratum corneum, which may cause frictional ecdysis depending on the situation. Waiting for skin problems. In other words, there is no skin care appliance that is excellent in the low irritation to the skin and has excellent wiping effect on the deep pores. Patent Document 1: JP-A-2004-332149, JP-A-2004-329628, JP-A-2004-329628, JP-A-2004-329628, JP-A No. JP-A No. No. No. No. 3,100,954, Patent Document 4, Japanese Patent Laid-Open No. 2 0 0 5 · 3 In the light of the above-mentioned circumstances, the present invention has been made in order to solve the above-mentioned problems of the above-mentioned problems, and it has been achieved by the results of further intensive research to provide an excellent irritancy to the skin, and For the purpose of wiping off skin wrinkles or dirt in the deep pores. In order to solve the above problems, the present invention has the following configuration. A skin care appliance characterized by comprising a thermoplastic polymer and having a number average single fiber fineness of lxl (T8~2.2xl (pile) yarn and ground yarn formed by a nanofiber of T3dtex 2. A velvet cloth 帛* 2. The skin care device according to the above item 1, wherein the thermoplastic resin is a dragon. 3. The skin care appliance according to the above item 1 or 2, wherein the number of the nanofibers is an average single fiber fineness The skin care appliance according to any one of the above-mentioned items 1 to 3, wherein the pile yarn is composed of a nanofiber bundle. 5. The method according to any one of the above items 1 to 4 The skin care device of the present invention, wherein the single-fiber fineness of the ground yarn is greater than or equal to 8x1 (T4dtex). The skin care device according to any one of the items 1 to 5, wherein the single-fiber fineness of the ground yarn is IxlO^dtex or more. The skin care device according to any one of the preceding claims, wherein the length of the fluff is in the range of 1 to 1 mm. The length of the fluff is in the range of 2 to 5 mm. 9. The above 1 to 8 The skin care device of any one of the above-mentioned items 1 to 9 wherein the skin care device has a sheet shape and the pile protrudes on both sides of the sheet shape. 11. The skin care appliance according to the above item 10, wherein the pile fabric is covered with a layer of protruding fluff on one side. 12. A method for preparing a skin care appliance, which is manufactured in items 1 to 11 above. A method for providing a skin care device according to any one of the preceding claims, characterized in that it comprises a fluffy fabric having a mixed fiber of a polymer composed of a sea component and an island component as a pile yarn, which dissolves the sea component without causing a ground grain The yarn is dissolved in a liquid to produce a number average single fiber fineness of lxi (TMtex~2.2xl (T3dtex nanofiber engineering. [Effect of the invention] By the present invention 'as explained below', the skin surface and the skin are available The skin of the groove or the deep pores has a high wiping effect and is low on the skin. 1379023 • A skin care appliance with excellent irritation. In addition, the present invention is made of nanofiber, for skin care. It can provide a feeling that the user feels good. Moreover, the skin care device of the present invention is excellent in form stability and texture when compared with a fabric made only of nanofibers, and has a good grip feeling. In the skin care device of the present invention, the thermoplastic polymer forming the nanofiber of the pile yarn may be polyester, polyamide, polyolefin, polyphenylene sulfide (PPS), etc., wherein the following is maintained. In terms of the shape of the nanofiber bundle, it has a strong hydrogen bond. Polyamine which is resistant to Nylon 6 or the like is preferred. In the skin care device of the present invention, the pile yarn is important by the nanofiber. By using nanofibers, unlike conventional skin care products made of very fine fibers (fine fibers), nanofibers easily enter the skin's grooves or deep pores, and can easily remove dirt. This is because the fiber diameter of the nanofiber is fine, and the section of the nanofiber fiber is easily deformed. The section of the second dimension is a minimum of 1.0x10·32~2.5xl·3 times compared with the conventional ultrafine fiber.値 ' is the cause of fiber-rich softness. Thereby, when the fleece yarn contacts the muscle skin, the nanofiber which forms the pile yarn is easily deformed and dispersed, and is closely adhered to the skin groove or the pores without a gap, and the fine dirt is removed (refer to Fig. 5). In addition, the stress applied to the skin can be easily dispersed, the skin is stimulated or the friction is extremely small, and the pores can be prevented from expanding. Moreover, the dense foam below the diameter can be made by "nanofibers" by which the dirt deep in the pores can be adsorbed. This is a denser foam obtained from a conventional ultrafine fiber as reported in the above-mentioned Patent Document 3 or the like. 1379023 • In addition, conventional microfibers are too thick to allow a sufficient number of sheets to enter the skin's grooves or pores. Further, since the bundle as described below cannot be formed, it is impossible to deform along the shape of the skin groove or pores, and it is impossible to capture fine dirt. In addition, extremely fine fibers that cannot be deformed cause stress to concentrate on the skin, damage the stratum corneum and excessively rub against the skin. The thickness of the nanofiber, the number average single fiber fineness is 1χ10_8~2.2xl (T3dtex (the diameter of the single fiber is 1~500nm for the resistant dragon 6), preferably 4xl (the density below 1.4g/cm3) When the dragon is 6, the diameter of the single fiber is 211 nm), and the better is 2x10_4dtex or less (when the nylon is 6, the diameter of the single fiber is 149 nm or less), and the better is lxl (below T4dtex). It is 10 611111 or less), and the best one is 81106~6兀105€^ (for the case of Nylon 6, the single fiber diameter is 30~82nm). By making the number of nanofibers the average single fiber fineness is 2.2x1 ( Below T3dtex, nanofibers can easily enter the skin's grooves or deep pores, and the effect of easy removal of dirt can be achieved. In addition, less than lxl (T8dtex, the strength of nanofibers and fluff yarns is not good. It is better to use a few condensations to form a bundle. The nanofiber bundle® swells when absorbing liquid (see Figure 4), and when it comes into contact with the skin, the bundle is crushed, and the surface of the nanofiber along the skin is grooved or The shape of the pores is deformed and dispersed. This is the same as the deformation and dispersion of the nanofibers. The large dirt is broken and caught in the depths of the nanofiber bundle. Moreover, the fine dirt in the skin's grooves or pores is not deep in the groove or pores of the dispersed nanofibers and the skin. The gap is captured in the depth of the bundle when it is in close contact with each other (see Figures 6, 7). The dirt that is wiped off is captured in the depth of the nanofiber bundle to prevent reattachment to the skin. 1379023 Here, In order to obtain a nanofiber, the following method can be employed. In other words, two or more polymers having different solubility to a solvent form a readily soluble polymer as a sea (matrix), a poorly soluble polymer. Mixing the melt of the polymer for the island (region), after spinning, cooling, hardening, and fibrillating. Then, 'expanding and heat-treating as needed to obtain a polymer blended fiber' The preferred dissolvable polymer is 99.9 % or more, and is removed by a solvent to obtain a nanofiber. In the method, the size of the island (region) in the polymer mixed spun fiber of the nanofiber precursor can be determined. , roughly decided The diameter of the rice fiber. The size control of the island (area) can be carried out by controlling the mixing of the polymer to achieve high mixing by means of a kneading extruder or a static kneading machine. In addition, the combination of polymers also affects The size of the island (region). In order to make the island (region) close to a circular shape, it is preferable that the island (region) polymer and the sea (base) polymer are incompatible with each other. However, simply by incompatible polymerization When the materials are combined, it is difficult to sufficiently superfinely disperse the island (region) polymer. Therefore, the combination of the polymers can be selected by using the solubility parameter (SP値) as an index. The SP 値 system is reflected as (evaporation energy/mo Ear volume) |/2 The parameter of the cohesive force of the substance defined. When the SP enthalpy difference of the two polymers is 1 to 9 (MJ/m3), it is preferable to make the island (region) circular and ultrafinely dispersed by incompatibility. For example, a good difference is that the SP 値 difference between Nylon 6 (N6) and polyethylene terephthalate (PET) is about 6 (MJ/m 3 ) W 2 , and the SP 値 difference between N 6 and polyethylene (PE) is about For ll (MJ/m3) " 2 is not an example. In addition, the melt viscosity also affects the size of the island (area). When the melting viscosity of the polymer forming the island component is set to be lower than that of the sea component, the polymer of the component component-10- 1379023 is easily dispersed due to the deformation of the island component polymer due to the shearing force. In the case of nanofibrillation, it is preferred that the composition of the composition of the island is too low viscosity to be easily seaified, and it is not possible to increase the mixing ratio of the fiber as a whole, and the viscosity of the island component polymer is the viscosity of the sea component polymer. More than /1 0 is preferred. A solvent which dissolves a sea (matrix) polymer and which does not easily dissolve an island (region) polymer, such as an alkali solution, an acidic solution, an organic solution, a supercritical fluid or the like. For example, in the combination of nylon and polyester, it is difficult to dissolve the alkali solution and the polyester is easy to dissolve. In the skin care device of the present invention, the raw material constituting the ground yarn of the fluffy fabric may be a synthetic fiber or a natural fiber, and the polyester mixed spun fiber is used as a pile yarn, and after the fluffy fabric is produced, the sea is removed, and the sea is removed. The raw material which is insoluble in the treatment is preferable, and the raw material which is the same as the nanofiber used in the pile is preferable in terms of creativity, texture, and touch feeling during use. Further, the water absorption property or the oil absorption property is preferably equal to or less than the nanofiber constituting the pile yarn. Therefore, in the pile yarn made of the nanofiber used as the wiping layer of the skin, the aqueous or oily detergent or the face washing material can be more effectively retained. The single fiber fineness of the ground yarn is more than 8xl (r4dtex is better, more preferably 1 X 10·1 dtex or more. By using the ground yarn, the shape stability can be improved without impairing the wiping performance of the nanofiber) Texture. The form of the cultivating hair i can be made of fabric or woven fabric. The specifics of the woven fabric are, for example, circular knitting, tricot woven fabric, double-line raschel warp knit fabric, etc.. The length of the fluffy velvet is 1~10mm. Preferably, it is in the range of 2 to 5 mm. When it is 1 mm or more, the pile yarn made of the nano-11-1179023 fiber can be made glossy, and good wiping or wetting can be obtained. In addition, it is possible to prevent the pile yarn from collapsing and the texture is lowered by being 10 mm or less. The skin care appliance 5 of the present invention is cut in the pile fabric by the front end of the pile yarn made of nanofibers. Preferably, the degree of freedom of the nanofiber of the pile yarn can be improved, and since the tip end of the nanofiber can easily enter the fine pores or the groove portion of the skin, the wiping effect can be improved. For the skin In the case of the stress, it is possible to obtain a feeling of the skin that feels good when wet (see Fig. 8). When the fine fiber of the conventional microfiber degree is used as the pile yarn, the front end of the fiber is protruded when the front end of the pile yarn is cut. For the skin, there is an unpleasant sensation for the skin. Therefore, cutting the front end of the pile yarn in the skin utensils is actually a imaginable person who can be imagined by using the nanofiber. In the form of a towel, two-finger gloves, gloves, rubber finger cots, etc., it is preferable to use a towel in terms of the user's preference, and in terms of ease of maintenance, It is preferable that the two-finger glove, the glove, the rubber finger sleeve, and the like can cover the shape of the hand or the finger. Further, the 'having a sheet shape and the fluff protruding from both sides of the sheet shape' is also a preferred form of the skin care appliance of the present invention. By protruding the fluff formed by the nanofibers on both sides of the shape of the sheet, the user can improve the manner of use or make it under the two sides of the watch without paying special attention to the skin care device of the present invention. In order to obtain the form, even if the fluff is directly applied to both sides of the pile fabric, it is preferable that the pile having a high pile density is formed by laminating a pile of villi on one side. Layered fluffy cloth

A -12- 1379023 'In a fixed method, a method of sewing the ends, a method of bonding with an adhesive such as an urethane type, etc. may be employed. Further, in terms of better foaming properties of the face washing material, a medium such as a net which promotes the foaming property of the face material can be used. Further, it is preferable to coat the cushioning material with a pile fabric containing fluff which is formed of nanofibers, and the shape thereof may be a two-finger glove or a glove. Next, the method for producing a skin care device according to the present invention is a method for producing a skin care device of the present invention, which comprises a fluffy fabric having a mixed fiber of a polymer composed of a sea component and an island component I as a pile yarn. The liquid treatment of dissolving the sea component and dissolving the ground yarn to produce a number average single fiber fineness of 8 to 2.2 x 1 (T3dtex nanofiber engineering). For the above-mentioned polymer mixed spinning fiber, the method of sea removal treatment, Preferably, the method of having a nanofiber is to dissolve the ground yarn which is a sea component, and the liquid which does not dissolve the ground yarn is subjected to sea removal treatment, in other words, by using an insoluble ground yarn in the sea removal treatment, even after the sea is removed Example: [Measurement method] ® (1) Weight average molecular weight of polylactic acid The sample was dissolved in chloroform, and tetrahydrofuran was mixed as a measurement solution. The gel permeation chromatography layer manufactured by Waters Co., Ltd. was used. Analytical method (GPC) Waters 2690, measured at 25 ° C, and obtained by weight-average molecular weight in terms of polystyrene. (2) Average number of nanofibers The fiber fineness is arbitrarily selected from 5 fluff yarns in the range of 5 cm x 5 cm, and the fluff yarns are cut into ultra-thin sections in the cross-section of the fibers to obtain a transmission electron microscope. 13-1379023 (TEM) (H manufactured by Hitachi, Ltd.) -7100FA type magnification 100,000 times) Observe the cross section of the fiber. By using the image processing software (WINROOF) from the cross section of the fiber, 300 or more pieces are randomly extracted in the same cross section, and a total of more than 1,500 single fibers are measured. For the diameter, the average average enthalpy is obtained, and the average number of nanofibers is taken as the single fiber diameter. The single fiber fineness is obtained from the single fiber diameter by the following formula. The number average single fiber fineness (with 6 乂) = (£^〇 72:/4) 110'8 where d: specific gravity (g/cm3) D: number average single fiber diameter (nm)

(3) Wipe evaluation of dirt A A foamed polyethylene sheet ("Treasure (registered trademark)") was used as the suspected skin for evaluation. For this purpose, a water-resistant cosmetic material ((Yi-Yin), which is made of a diameter of 1 cm, is dried at 20 ± 2 ° C, 65 ± 2% RH. hour. The test piece was cut into a length of 6 cm x 8 cm, and impregnated with a detergent of 2.6 times the mass of the test piece (white washed water made by Seiko Meberton (stock)), and made in close contact with sand rubber. Plate (vertical 6cmx horizontal 7cmx thick lcm). The test piece was subjected to a rubbing operation for 5 times with respect to the coating portion of the above-mentioned suspected skin cosmetic material by pressurizing 〇.5cN/mm2 (300g/2.5cm2), speed 2cm/s, and wiping width 2cm. The degree of soil release after the wiping operation was visually observed and evaluated in the following five stages. 5: The dirt between the grooves of the suspected skin is completely detached. 4: The surface of the suspected skin has a slight residual dirt. 3: There is a considerable amount of dirt remaining in the groove of the skin. -14- 1379023

2: Suspected skin groove and some dirt on the surface. 1: Suspected skin groove texture and surface with considerable dirt residue. (4) Evaluation of dirt wipe B Apply 0.5cmx2cm water-resistant makeup material on the inside of the wrist. ((shares) Shiseido system, Eranaf, Lieton), drying at normal temperature and humidity for 30 minutes. The test piece was cut into 6 cm in length and 8 cm in width, and impregnated with a detergent of 2.6 times the mass of the test piece (white washed water made by Seiko Meberton), and attached to a rubber rod made of enamel rubber. (About 8 mm in diameter), the surface of the coating material of the wrist is wiped back and forth 10 times in a certain direction. The degree of soil shedding after the wiping operation was observed with a microscope (300 psi), and the degree of soil detachment after the wiping operation was evaluated in the following five stages. 5: The groove of the skin's dirt is completely peeled off in the pores. 4: The groove of the skin _ There is a little dirt left in the pores. 3: The groove of the skin. There are quite a lot of dirt in the pores. 2: The groove of the skin Deep pores and some dirt on the skin surface. 1: Skin sulcus 'Deep pores and a lot of dirt residue on the skin surface. (5) Low irritant evaluation. Use suspected skin system to use agar ((股)真田制纯The agar was dissolved in water and the solidified agar sheets were cooled. The test piece was cut into 6 cm in length and 8 cm in width, impregnated in water of 2.6 times the mass of the test piece, and attached to a rod made of enamel rubber (having a diameter of about 8 mm), and the surface of the agar sheet was turned back and forth in a certain direction. Wipe the operation 10 times. The degree of abrasion of the surface of the agar sheet after the wiping operation was visually observed and evaluated in the following five stages of -15 - 1379023. 5: Unrecognizable agar scars 4: Slightly recognizable agar scars 3: Significant agar scars 2: Significant agar scars, deep scars 1: Significant agar scars, lots of scars (6) Foaming Evaluation The foaming-promoting media used a lOcm x 10 cm polyethylene mesh (8 mesh), and the 15 mm x 15 cm test piece was wrapped in a tea towel twisted object, and the opening was knotted and closed with a cotton thread. The solution was immersed in a face material solution (concentration: 20% by mass, temperature: 37 ° C) which was 0.3 times the mass of the test piece, and was rubbed back and forth 100 times with a milk stick to foam. The surface shape of the obtained foam was observed under a microscope (300 times magnification of Siens VH-6300C). (7) Monitor evaluation (washing foam application) The test piece was cut into a vertical 6 cm x horizontal 8 cm, and the impregnation was 2.6 times the mass of the test piece (the Seiko Meberton (stock) white wash In clean water). Using this product, 50 women aged 20 to 50 years were subjected to a makeup washing test, and the degree of shedding of the makeup material, skin contact feeling, low skin irritation, and use method were tested. (8) Monitor evaluation (washing cloth use) The test piece is cut into a vertical 6cm x horizontal 8cm, soaked and washed materials (Ulyiba · 曰本(股)" pull house (registered trademark) Moschif F After ”, foaming. Use this item to perform a makeup test on 50 women aged 20 to 50. • 16· 丄 379023. Tests about the degree of shedding of the makeup materials, skin contact, low skin irritation, and how to use them. [Example 1] '(Polymer-mixed anti-fiber) Each of the melt viscosity 212 Pa_.s (262 ° C, shear rate UlAsec·1), and the temperature of 220 ° C Nylon 6 (N6) (45 wt%) ) Poly L-lactic acid (55 mass%) with a weight average molecular weight of 120,000, a melt viscosity of 30 Pa's (240 ° C, a shear rate of 24 3256 〇, a melting point of 170 ° C, and an optical purity of 99.5 % or more), individually supplied to the following details The 2-axis extrusion kneading machine is melt-kneaded at 220 ° C to obtain a polymer mixed spun. Spiral shape: full-engagement type in the same direction 2 screw spirals: diameter 37 mm, effective length 1 670 mm, L/D = 45.1 Length of the section: at the discharge side position of 1/3 of the effective length of the spiral: 2 points

The obtained polymer mixed spun sheet is supplied to a spinning machine, and the polymer is mixed and spun melted by a metal non-woven fabric having a critical filtration diameter of 15 vm in a rotating region of 2 3 (melting at TC, spinning temperature of 230 ° C). After the object, the nozzle was melt-spun from a nozzle having a nozzle diameter of 0.3 mm, a hole length of 0.55 mm, and a nozzle surface temperature of 215 ° C. The discharged sliver was cooled and hardened by lm under a cooling air of 20 ° C, and was set from the nozzle. An oil agent is supplied to the oil supply line below 1.8 m, and is taken at a spinning speed of 3000 m/min, and then extended at an elongation temperature of 90 ° C, a stretching ratio of 1.5 times, and a heat curing temperature of 130 ° C. The obtained polymer mixed fiber The composite yarn has a 133 dtex, 48 long yarn, a strength of 3.6 cN/dtex, a tensile ratio of 40%, and a Uster spot of 0.7%. Moreover, the cross section of the obtained polymer mixed spun fiber is observed by TEM, which is poly L- -17- 1379023 Lactic acid is the sea (matrix), N6 is the island structure of the island (region), and the island (region) is ultra-finely dispersed with a number average diameter of ll 〇 nm. (Fleece yarn) The above-mentioned polymer mixed spun fiber is used. The multifilament yarn is used as a pile yarn. Nylon 6 multifilament with a fineness of 75 dtex and 24 long yarns (single fiber denier 3 ldtex) as a ground yarn. (Machine) The multifilament yarn of the above-mentioned polymer mixed spun fiber is used as a pile yarn, and the above-mentioned ground yarn is used to attach a singer A single-line circular knitting machine for fluff, which is made into a circularly knitted looped pile fabric with a length of 2.2 mm. (Skin care equipment) For the above-mentioned mechanical woolen fabric, in a 1% sodium hydroxide aqueous solution, the temperature is 98 °C, the bath ratio is 1: The immersion treatment was carried out for 100 hours in 100, and 99.9% or more of the polylactic acid in the polymer blended spun fiber was removed by hydrolysis to obtain a pile yarn made of a N6 nanofiber bundle and a N 6 multifilament yarn. The skin care tool made of the fleece cloth composed of the ground yarn. The N6 nanofiber system has the fineness distribution of 1 500 samples of the above measurement (1) of lxlO·8~4xl (in the range of T4dtex, the number average single fiber fineness is 1 X 1 0-4dtex. Regarding the obtained skin care products, the dirt wipes can be evaluated in each of A and B. In addition, the low irritancy evaluation is low in irritancy. In addition, the monitor evaluation is good in each project. The result of the foaming The formation of dense foams having a diameter of 10/zm or less was observed. [Example 2] -18 - 1379023 (Polymer mixed spun fiber) A double yarn of the same polymer mixed spun fiber as in Example 1 was produced. (Fleece yarn) Using the above The multifilament of the polymer blended spun fiber was used as the pile yarn. (Gross yarn) The same one used in Example 1 was used as the ground yarn. (Machine) The same was produced in the same manner as in Example 1 using the above-mentioned pile yarn and the above ground yarn. (Skin care tool) The above-mentioned pile fabric was subjected to a sea-removal treatment in the same manner as in Example 1 and was subjected to fluffing by a diamond processing to cut the front end of the bristles and to obtain a skin care tool. Regarding the obtained skin care appliances, the dirt wipe evaluations A and B each had good effects. In addition, the surface of the low-stimulation evaluation showed almost no good results in the form of a scratch. In addition, monitor evaluation is a good result for each project. In particular, since the front end of the pile yarn is cut, compared with the first embodiment, most of the skin contact can be affirmative. Moreover, the evaluation of the foaming property can observe the formation of dense foams having a diameter of ΙΟ/zm or less. [Example 3] (Polymer mixed spun fiber) A multifilament of the same polymer mixed spun fiber as in Example 1 was produced. (Fleece Yarn) The multifilament yarn of the above-mentioned polymer mixed spun fiber was used as a pile yarn. (Gross yarn) -19- 1379023 A nylon 6 multifilament yarn having a total fineness of 11 Odtex and 24 long yarns (single fiber fineness of 4.6 dtex) was used as the ground yarn (the same as in Example 3). (Production) A pile fabric was produced in the same manner as in Example 1 except that the above-mentioned pile yarn and the above-mentioned ground yarn were used. (Skin Care Tool) The above-mentioned pile fabric was subjected to a sea-removal treatment in the same manner as in Example 1 to obtain a skin care device. The N6-resistant rice fiber has a fineness distribution of 1x1〇8~4xl (in the range of T4dtex, the number average single fiber fineness is 1 X 1 0- 4 dte X in the range of 1×100 samples. The skin care appliance, the dirt wipe evaluation has good results in each of A and B. In addition, the low irritancy evaluation surface has almost no good results in the occurrence of scratches. In addition, the monitor evaluation is good results in each item. In particular, since the front end of the pile yarn was cut, the answer to the skin contact was mostly positive when compared with Example 1. Moreover, the evaluation of the foaming property was able to observe the formation of a dense foam having a diameter of 10 m or less. Example 4] (Polymer mixed spun fiber) A composite yarn of the same polymer mixed knot fiber as in Example 1 was produced. (Depilation yarn) The yarn of the above-mentioned polymer blended spun fiber was used as a pile yarn. (Gross yarn) The Nylon 6 multifilament yarn having a total fineness of ll 〇 dtex and 24 long yarns (single fiber fineness of 4.6 dtex) was used as the ground woven yarn. -20- 1379023 (Production) The same manner as in Example 1 was carried out using the above-mentioned pile yarn and the above woven roving yarn. Fluff (Skin care tool) The above-mentioned pile fabric was subjected to a sea-removal treatment in the same manner as in Example 1. (until now, the same as in Example 3) Then, the wool yarn was processed to raise the hair, and the front end of the loop pile was cut. A skin care appliance was obtained. The obtained skin care appliance 'dirty wipe evaluation A, B has a good effect. In addition, the low irritancy evaluation surface has almost no good result of scratching. In addition, the monitor evaluation is applied to each item. In particular, since the front end of the pile yarn was cut, compared with Example 3, most of the skin contact was answered with an "excellent touch". Moreover, the skin care produced in Example 2 was used. When the tool is compared, since the single fiber of the ground yarn is coarse and compact, most of the forms have good form stability, and the relevant use can be answered affirmatively. In addition, the evaluation of the foaming property can observe the dense foam of 10 gm or less in diameter. [Examples 5, 6] (Polymer mixed spun fiber) A double yarn of the same polymer mixed spun fiber as in Example 1 was produced. (Fleece yarn) Using the above poly The composite yarn of the blended spun fiber is used as a pile yarn. (Gross yarn) A nylon 6 multifilament yarn having a total fineness of 1 lOdtex and 24 long yarns (single fiber fineness of 4.6 dtex) is used as the ground yarn (the same as in the third embodiment). 21 - 1379023 (Manufacturing) Using the above-mentioned pile yarn and ground yarn 'to make a double-line raschel warp knit fabric with a two-line raschel warp knitting machine. The two-layer raschel warp knit fabric with a spacing of 6.0 mm. In the case of the Shear warp knit, two pieces of the length of the fluff are cut into two pieces, and the cut piles having a pile length of 1.5 mm and the cut piles having a pile length of 4.5 mm are obtained. The above-mentioned two types of pile fabrics were subjected to a sea-removal treatment in the same manner as in Example 1, and a skin care kit was prepared. The sample having a fluff length of 1.5 mm was Example 5, and the length of the fluffing was 4.5 mm. In Examples 5 and 6, the N6-resistant rice fiber series were all the above-mentioned measurement (1), and the fineness distribution of 1500 samples was lxl (T8~4xl (the range of T4dtex, the number average single fiber fineness was lxl0_4dtex. In the skin care appliance of the example, the dirt wiping evaluation has good effects in each of A and B. In addition, the 'low irritancy evaluation system has almost no good result of scratching on the surface. In addition, the monitor evaluation system is in each project. Good results were obtained. In particular, most of the answers to skin contact in Example 6 were positive, and the evaluation of the foaming property was observed to produce dense foams having a diameter of 10 μm or less. [Examples 7, 8] (Polymers) Mixed spun fiber) A double yarn of the same polymer mixed spun fiber as in Example 1. (Artificial yarn) The multifilament yarn of the above-mentioned polymer blended spun fiber was used as a pile yarn. (Gross yarn) -22- 1379023 Total fineness ll Nylon 6 multifilament yarn of 〇dtex, 24 long yarn (single fiber fineness 46 dtex) as a ground yarn (same as in Example 3). (Machine) Knitted with two-line raschel warp knitting using the above-mentioned pile yarn and ground yarn The machine produces two-line raschel warp knit fabrics with a spacing of 6.0 mm. The two-line raschel warp knit fabric is cut into two pieces at a length of 5:7. The cut piles with a length of 2_5 mm of fluff and the cut piles of 3.5 mm of fluff length are used. The nylon-resistant fibers of 'N6 in Examples 7 and 8 are the fineness of the sample of the above 5 (1). The distribution is lxl (in the range of T8 to 4x10_4dtex, the number average single fiber fineness is 1 X 1 (Γ4 dte X. (skin care appliance), after the above two types of pile fabrics, the same as in the first embodiment, after the sea removal treatment A skin care appliance was prepared. The length of the fluff was 2.5 mm, and the length of the fluff was 3.5 mm. The skin care apparatus of the two examples was obtained. The dirt wipe evaluations A and B each had good effects. Both the irritant evaluations gave good results. In addition, both of the monitor evaluation methods gave good results in each project. In addition, most of the two examples were answered with affirmative answers to the skin touch. The evaluation of the bubble is observed at a diameter of 1 0 // m [Example 9] (Polymer mixed spun fiber) A double yarn of the same polymer mixed spun fiber as in Example 1 was produced. (Fleece yarn) -23- 1379023 The yarn of the above-mentioned polymer mixed spun fiber was used. The velvet yarn was used as the ground yarn. The same as the user of the first embodiment was used as the ground woven yarn. (Bullet) The pile yarn was produced in the same manner as in Example 1 using the pile yarn and the ground yarn. In the knitted fabric, after the sea-removal treatment was carried out in the same manner as in Example 1, the fluffing was performed by the processing of the diamond yarn, and the front end of the loop pile was cut to obtain a cut pile fabric. (until now, in the same manner as in the second embodiment), each of the obtained cut pile fabrics is cut into the size of the test piece of the above-described measurement using two sheets, and the ground yarn surfaces are overlapped and merged in the same direction so that the ends are The cotton thread is sewn to produce a skin care device that protrudes on both sides of the sheet shape. Regarding the obtained skin care apparatus of the two embodiments, the dirt wiping evaluation was good, and each of them had good effects. In addition, the low irritancy assessment was almost completely irritating with no irritating results. In addition, both of the monitor evaluations have good results in each project. In addition, due to the two layers, the hand feel is good, and most of the relevant methods of use can be answered affirmatively. Moreover, the evaluation of the foaming property can observe the formation of dense foams having a diameter of 10 μm or less. [Example 10] (Polymer mixed spun fiber) A multifilament of the same polymer mixed spun fiber as in Example 1 was produced. (Fleece yarn) -24 - 1379023 The use of the above-mentioned polymer mixed spun fiber as a pile yarn. (Gross yarn) The same as the user of Example 1 was used as the ground yarn. (Production) A knitted fabric was produced in the same manner as in Example 1 except that the above-mentioned pile yarn and ground yarn were used. (Skin care tool) The above-mentioned pile fabric was subjected to a sea-removal treatment in the same manner as in Example 1, and the hair ends of the loop pile were cut by the processing of the diamond yarn to obtain a cut pile fabric. (until now, in the same manner as in the second embodiment), the obtained cut piles are knitted in two sheets, and the ground surface of the ground yarns are overlapped in the same direction, and the ground yarn surface is made of a urethane-based adhesive (Great Japan). Ink Chemical Industry Co., Ltd., Raphos (registered trademark) 865HV) is applied and bonded in a spot shape at a coating amount of about 4 g/m 2 to obtain a skin care device in which fluff is protruded on both sides of a sheet shape. Regarding the skin care appliances of the two examples obtained, the soil wipe evaluations A and B each had good effects. In addition, the low irritancy assessment was almost no irritating result when wiping. In addition, both of the monitor evaluation methods have good results in each project. In particular, there are 2 layers, and the hand feel is good. Most of the methods of use can be answered affirmatively. Moreover, the evaluation of the foaming property can observe the formation of dense foams having a diameter of 10 or less. [Comparative Example 1] Using a commercially available microfiber-washing cloth ((R) Kyrgyzstan Rim Baruta Oulu number average single fiber fineness 0.22 dtex) as an evaluation object - 25- 1379023 In the middle, the skin care device of the present invention is a poor result. In addition, the low irritancy assessment system is strongly irritating. In addition, the monitor evaluation was inferior to the skin care appliance of the present invention in each item, and good results were not obtained. Moreover, the evaluation of the foaming property produces large bubbles of about 100/z m to 1 mm in diameter. [Comparative Example 2] A commercially available microfiber-washing cloth (Bririch exfoliating layer cloth (registered trademark) manufactured by Rickey Burley Co., Ltd. was used as the evaluation object. About the dirt wiping evaluation A, B The skin care device of the present invention is a poor result. In addition, the low irritation evaluation system is highly irritating. In addition, the monitor evaluation is not good when compared with the skin care device of the present invention in each item. As a result, especially the skin is highly irritating, and most of them have a tingling sensation after use. Moreover, the evaluation of the foaming property produces a large bubble having a diameter of about 100 // m to 1 mm. [Comparative Example 3] Using the city For the evaluation of the foaming property, the diameter of the blistering is about the diameter of the smear of the smear of the smear of the smear. It is a dense foam of 1 to 20 ym, but it is difficult to handle the size of the foam. -26- 1379023 Example 1 Example 2 Example 3 Example 4 Laifeng·, county Ma 2.2 mm 2.2 mm 2.2 mm 2.2 mm fluff hair Circle cut loops cut the ground dtex dtex )xfi long yarn ' ) 75x24 <- 110x24 <- constitute a velvet fluffy 帛m face fluffy crepe flannel 帛 帛 帛 帛 擦拭 擦拭 擦拭 擦拭 A A A A 4 5 4 5 Dirt wipe evaluation B 4 '5 4 5 Irritation evaluation " 4 5~~' 4 5 Table 2 Example 5 Example 6 Example 7 Example 8 Fluff length 1.5mm 4.5mm 2.5mm 3.5mm Mechanical hair shape cut and cut ground yarn dtex (German Special) xf (long yarn) 110x24 110x24 constituting single-faced fluff 帛 single-faced fluff 帛 single-faced fluffy table 箪 flannel 帛 dirt wipe evaluation A 5 5 5 ^5 dirt wipe evaluation B 5 5 5 """5 Stimulus assessment 4 5 5

Table 3 Example 9 Example 10 Comparative Example 1 Comparative Example 2 Comparative Example 3 Hair-cut length 2.2 mm 2.2 mm _ Fleece shape cut-off swarf dtex (dtex) xf (long yarn) constituting 75x24 two-faced fluff 帛 (2 Sew-on) < Two-faced fluffy crepe (2 sheets) Two velvet cloth 帛 - - - - Dirt wipe evaluation A 5 5 3 3 2 Dirt wipe evaluation B 5 5 2 2 3 Irritation evaluation 5 4 2 1 1 -27- 1379023

Table 4 Example 1 Example 2 Example 3 Example 4 Details of the fluff length 2.2mm 2.2mm 2.2mm 2.2mm fluff shape loop cut loops cut ground yarn dtex (dite) xf (long yarn) 75x24 <- 110x24 <- constitute a single-faced fluffy 帛 single-faced fluff 帛 single-faced fluff 帛 single-faced fluff 帛 test content used as a cleaning sponge when the degree of makeup shedding is extremely off 33 42 33 40 with no detergent only change 15 6 14 7 The makeup material attached to the fabric is returned to the skin (it seems to have) 2 2 3 3 The touch of the skin is extremely soft. 32 43 32 42 The touch is good 5 3 8 5 Can't say the touch is good 7 2 3 3 The touch is not good 2 0 2 0 Others 4 1 5 0 Skin irritation is completely absent 32 40 33 42 Slightly 8 2 7 3 Yes 2 0 3 3 Other 8 8 7 2 Easy to use 20 25 27 30 Good 10 13 12 12 Normal 18 9 9 6 Poor 2 3 2 2 Extremely poor 0 0 0 0 Other 0 0 0 0 For future use review 33 32 32 42 No 10 10 10 7 Not used 5 3 3 0 Other 2 5 5 1 -28- 1379023

Table 5 Example 5 Example 6 Example 7 Example 8 Sample details The length of the mechanical hair 1.5mm 4.5mm 2.5mm 3.5mm The fluffy cut, the cut, the cut, the dtex (dot) xf (long yarn) 110x24 <- 110x24 歳 歳 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单The makeup material of the cloth is returned to the skin (it seems to have) 0 6 2 3 The touch of the skin is extremely soft 42 48 48 48 The touch is good 5 0 0 0 It can't be said that the touch is good 2 0 0 0 The touch is not good 1 2 2 2 Others 0 7 0 0 Skin irritation is completely absent 32 48 42 47 A little 7 0 3 0 Yes 3 0 0 0 Other 8 2 5 3 Easy to use 14 Excellent 27 42 38 35 Good 8 3 5 3 Normal 13 2 2 2 Poor 0 0 2 2 Extremely poor 0 0 0 0 Other 2 3 3 8 Future use review 35 43 42 45 None 10 5 5 3 Not used 3 2 2 0 Other 2 0 1 2 -29- 1379023 Table 6

Example 9 Example 10 Comparative Example 1 Comparative Example 2 Comparison 3 Sample details Mechanical length 2.2 mm 2.2 mm - - - Fluff shape cut-off - - - Ground yarn dtex (dtex) xf (long yarn) 75x24 <;— - - - Composition of two-faced fluffy fabrics (two stitches) Two-faced fluffy fabrics (two bonded) Two-faced fluffy fabrics 帛 Test content used as a cleaning sponge when the degree of makeup peeling off is extremely off 43 47 23 23 22 No change with detergent only 5 2 15 17 17 The makeup material attached to the cloth is returned to the skin (it seems to have) 2 1 12 10 11 The touch of the skin is extremely soft 44 43 20 12 8 The touch is good 3 2 8 10 10 Can't say the touch is good 0 0 10 18 22 Poor touch 0 0 10 8 8 Other 3 5 2 2 2 Skin irritation is completely absent 40 42 17 5 5 Slightly 3 2 13 15 8 Yes 0 0 18 26 33 Other 7 6 2 4 4 Accessibility Good 47 45 30 15 20 Good 2 2 7 10 5 Normal 0 0 3 23 23 Bad 0 0 3 2 2 Extremely poor 0 0 2 0 0 Other 1 3 5 0 0 For future use review 45 45 22 10 5 No 3 2 8 17 22 not used 0 15 20 20 23533-30- 1,379,023 TABLE 7

Example 1 Example 2 Example 3 Example 4 Detail of the mechanical length 2.2mm 2.2mm 2.2mm 2.2mm Velvet hair loop cut loops cut off ^Mtex (dtex) xf (long yarn) 75x24 <;— 110x24 constitutes a single-faced fluffy fabric, single-faced fluff, single-faced fluff, single-faced fluff, test content. When used as a cleaning sponge, the degree of dirt shedding is extremely off. 34 43 33 43 No change with detergent only 13 7 14 7 Attached to the fabric The dirt returns to the skin (it seems to have) 3 0 3 0 The skin feels extremely soft. 32 47 33 45 The touch is good 5 0 8 2 It can't be said that the touch is good 7 2 5 0 The touch is not good 2 1 2 2 Other 4 0 2 1 Skin irritation is completely absent 35 40 37 43 A little 5 2 5 2 Yes 2 0 3 0 Other 8 8 5 5 Excellent useability 20 20 30 32 Good 10 8 10 15 Normal 15 13 5 2 Bad 3 3 2 0 Extremely poor 2 6 2 1 Other 0 0 1 0 For future use review 33 38 37 42 No 10 7 8 5 Not used 5 3 3 2 Other 2 2 2 1

-31 - 1379023 Table 8

Example 5 Example 6 Example 7 Example 8 im detail thief length 1.5mm 4.5mm 2.5mm 3.5mm fluff shape cut cut cut swarf dtex (dite) xf (long yarn) 110x24 <;—110x24<- constitutes a single-faced fluffy crepe single-faced fluffy crepe single-faced fluffy crepe single-faced fluffy cloth 帛 test content used as a cleaning sponge is extremely off 45 45 47 45 with no use of detergent only change 5 5 2 3 The dirt on the cloth is returned to the skin (it seems to have) 0 0 1 2 The touch of the skin is extremely soft. 43 48 48 48 The touch is good 3 0 0 0 It can't be said that the touch is good 2 0 0 0 The touch is not good 2 2 2 2 Other 0 0 0 0 Skin irritation is completely absent 32 48 42 47 A little 7 0 3 0 Yes 3 0 0 0 Other 8 2 5 3 Excellent useibility 33 42 38 35 Good 10 3 5 3 Normal 5 2 2 2 No Good 0 0 2 2 Extremely poor 0 0 0 0 Other 2 3 3 8 Future use review 35 43 42 45 None 10 5 5 3 Not used 3 2 2 0 Other 2 0 1 2

-32- 1379023 Table 9 Example 9 Example 10 Comparative Example 1 Comparative Example 2 Comparison 3 Detailed fluff length 2.2 mm 2.2 mm Paper wool - - • Less dtex (dtex) xf (long yarn) 75x24 _ Composition of double-faced fluff Two-sided system) Two-faced fluffy crepe (rain-bonded) Two-faced fluffy crepe - • The test content is extremely detached when used as a cleaning sponge. 43 45 23 18 15 No change with only detergent 5 3 17 19 20 Attached to the office The stain is returned to the skin (it seems to have) 2 2 10 13 15 The touch of the skin is extremely soft 44 42 17 13 8 The touch is good 3 7 8 13 12 The touch is good 0 0 13 17 22 The touch is not good 0 0 10 3 3 Others 0 1 2 4 5 Skin irritation is completely absent 42 38 17 10 15 A little 5 7 15 13 8 Yes 0 0 15 24 17 Other 3 5 3 3 10 Excellent useibility 42 40 22 18 15 Good 7 7 5 5 5 Normal 0 2 10 15 23 Bad 0 0 7 5 2 Extremely poor 0 0 3 5 3 Other 1 1 3 2 2 For future use review 45 43 18 11 12 None 2 3 17 15 17 No Use 0 2 15 23 20 other 3 2 0 1 1

[Industrial price] The skin care device of the present invention is excellent in the skin irritation field because it is excellent in low irritation to the skin and excellent in rubbing off dirt in deep pores. BRIEF DESCRIPTION OF THE DRAWINGS [Fig. 1] is a schematic cross-sectional view showing a woven fabric or a knitted fabric constituting the skin care device of the present invention. [Fig. 2] A TEM photograph of a cross section of a polymer mixed spun fiber of a nanofiber precursor. -33- 1379023 [Fig. 3] is a SEM photograph of the surface of a Nylon 6 nanofiber bundle. [Fig. 4] is the surface of the Nylon 6 nanofiber bundle that absorbs water and expands.

SEM photo. [Fig. 5] is a photomicrograph of a truncated face when the pile yarn of the Nylon 6 nanofiber bundle is attached to the suspected skin (bovine leather). [Fig. 6] is a SEM photograph of the shape of the fluff yarn formed by the Nylon 6 nanofiber bundle. In the circle, it is confirmed that the captured dirt particles [Fig. 7] is a pattern in which the nanofiber bundle absorbs water, expands, and is deformed by force, and is captured and removed under the dirt surrounding the pores. Fig. 8 is a schematic view showing the (a) cut pile and the (b) hair: loop pile fluff formed by the nanofiber bundle. [ Description of main component symbols] 1 looped yarn 2 ground yarn 3 cut pile yarn 4 leather 5 pile yarn made of nanofibers 6 nanofiber bundle when dry 7 nanofiber bundle 8 when expanded Nanofiber bundles 9 Skin 10 Dirt particles 11 Fluffy rugs (texture) 12 Island (region) 13 Sea (matrix) -34-

Claims (1)

1379023 X. Patent application scope. i. A skin care appliance characterized by a pile yarn made of a thermoplastic polymer and having a number average nanofiber fineness of lxl〇8~2.2xl0_3dtex of nanofibers, and A pile fabric composed of ground yarn. 2. For the skin care appliance of claim 1, wherein the thermoplastic resin is Nylon. 3. The skin care appliance of claim 1, wherein the average number of the nanofibers is 4xl CT4dtex or less. φ 4. The skin care device of claim 1, wherein the pile yarn is composed of a nanofiber bundle. 5. The skin care appliance of claim 1, wherein the single-fiber fineness of the ground yarn is greater than 8xl (T4dtex. 6. The skin care appliance of claim 1, wherein the single-fiber fineness of the ground yarn is lxl0_1dtex or more 7. For the skin care appliance of the scope of patent application No. 1, the length of the hair removal is in the range of 丄~10mm. φ 8. The skin care appliance of the first application of the patent scope, wherein the length of the mechanical hair is 2 to 5 mm. 9. The skin care appliance of claim 3, wherein the front end of the pile yarn is cut. 10. The skin care appliance of claim 1 which has a sheet shape and the fluff protrudes from the sheet shape 11. The skin care appliance of claim 10, wherein the pile fabric with a pile of fluff is laminated on one side. -35- 1379023 12. The method of manufacturing a skin care appliance, which is manufactured as a application The method of the skin care appliance of the first aspect of the invention, characterized in that it comprises a fluffy fabric having a mixed fiber of a polymer composed of a sea component and an island component as a pile yarn. The process of dissolving the sea component and not dissolving the ground yarn is carried out to produce a nanofiber having a number average single fiber fineness of lxl 〇 8dtex to 2.2xl 〇, teX. -36-