WO2007023887A1 - Outil de soin pour la peau et son procede de fabrication - Google Patents

Outil de soin pour la peau et son procede de fabrication Download PDF

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Publication number
WO2007023887A1
WO2007023887A1 PCT/JP2006/316584 JP2006316584W WO2007023887A1 WO 2007023887 A1 WO2007023887 A1 WO 2007023887A1 JP 2006316584 W JP2006316584 W JP 2006316584W WO 2007023887 A1 WO2007023887 A1 WO 2007023887A1
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WO
WIPO (PCT)
Prior art keywords
skin care
pile
care device
yarn
skin
Prior art date
Application number
PCT/JP2006/316584
Other languages
English (en)
Japanese (ja)
Inventor
Masanobu Takeda
Takahiro Hasui
Naomi Matsumoto
Original Assignee
Toray Industries, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toray Industries, Inc. filed Critical Toray Industries, Inc.
Priority to EP06782988.7A priority Critical patent/EP1925231A4/fr
Priority to US11/990,921 priority patent/US20090145507A1/en
Publication of WO2007023887A1 publication Critical patent/WO2007023887A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/02—Pile fabrics or articles having similar surface features
    • D04B21/04—Pile fabrics or articles having similar surface features characterised by thread material
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0017—Woven household fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/292—Conjugate, i.e. bi- or multicomponent, fibres or filaments
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/30—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments
    • D03D15/33—Ultrafine fibres, e.g. microfibres or nanofibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D27/00—Woven pile fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/02—Pile fabrics or articles having similar surface features
    • D04B1/04—Pile fabrics or articles having similar surface features characterised by thread material
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/10—Details of applicators
    • A45D2200/1009—Applicators comprising a pad, tissue, sponge, or the like
    • A45D2200/1018—Applicators comprising a pad, tissue, sponge, or the like comprising a pad, i.e. a cushion-like mass of soft material, with or without gripping means
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides

Definitions

  • the present invention relates to a skin care device comprising nanofibers.
  • the skin care in the present invention refers to “cleaning and treating the skin” throughout the body, and the skin care device refers to all devices used for this purpose.
  • Patent Document 1 a skin care device using ultrafine fibers having a fineness of 0.001 to ldtex is disclosed (for example, Patent Document 1).
  • a skin care device for directly wiping off dirt and old keratin with ultrafine fibers having a fineness of 0.001 to ldtex is disclosed.
  • Patent Documents 2 and 3 a fine fiber of 0.001 to 1 dtex directly to the skin and wiping away dirt and old keratin, it is applied to the skin. There is concern that it may cause excessive irritation and friction, causing skin troubles such as pigmentation and keratin thickening, and, in some cases, friction dermatosis.
  • Patent Document 1 JP 2004-332149 A
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2004-329628
  • Patent Document 3 Registered Utility Model No. 3100954
  • Patent Document 4 Japanese Patent Laid-Open No. 2005-330637
  • the present invention has been achieved as a result of studying the solution of problems in the prior art as an object, and is excellent in hypoallergenicity to the skin and has deep skin pores on the skin.
  • the purpose of the present invention is to provide a skin care device excellent in the effect of wiping off dirt.
  • the present invention has the following configuration.
  • Thermoplastic polymer force even pile yarn monofilament fineness number average made consists nanofibers is 1 X 10 one 8 ⁇ 2.
  • 2 X 10 "3 d tex, and a ground yarn force is also composed of a pile fabric A skin care device made of cloth.
  • thermoplastic polymer is nylon
  • a method for producing a skin care device according to any one of the above items 1 to 11, wherein a pile fabric having a polymer alloy fiber composed of a sea component and an island component as a pile yarn is dissolved in the sea component.
  • 2 X 10 _3 dtex, characterized in including Mukoto A method of manufacturing a skin care device.
  • the wiping effect is high, and the skin is excellent in low irritation.
  • a skin care tool can be obtained.
  • the skin care device of the present invention which is also the best nanofiber, can provide comfort to the user.
  • the skin care device of the present invention is superior in form stability and texture, and also has a good hand feeling as compared with a cloth that only uses nanofibers.
  • FIG. 1 is a schematic cross-sectional view showing an example of a woven fabric or a knitted fabric constituting the skin care device of the present invention.
  • FIG. 2 is a TEM photograph showing a cross section of a polymer alloy fiber that is a precursor of nanofibers.
  • FIG. 3 SEM photograph of the surface of a bundle of nylon 6 nanofiber fibers.
  • FIG. 4 A surface SEM photograph of a nylon 6 nanofiber fiber bundle that absorbs water and swells.
  • FIG. 5 A cross-sectional microscope photograph of a pile yarn, which is a bundle of nylon 6 nanofiber fibers, in close contact with pseudo skin (cowhide).
  • FIG. 6 An SEM photograph showing a pile yarn consisting of a bundle of nylon 6 nanofiber fibers collecting dirt. The collected dirt particles are recognized in the circle.
  • FIG. 7 is a schematic diagram showing how a bundle of nanofiber fibers absorbs water, swells, deforms due to force, and collects and removes dirt clogged in the back of pores.
  • FIG. 8 is a schematic diagram showing a comparison of (a) a cut pile and (b) a loop pile of a pile yarn composed of a bundle of nanofiber fibers.
  • Polyester, polyamide, polyolefin, polyphenylene sulfide (PPS), or the like can be used as the thermoplastic polymer for forming the nanofiber of the yarn yarn in the skin care device of the present invention.
  • PPS polyphenylene sulfide
  • the nanofiber bundle shape as described later for maintenance, polyamides such as nylon 6 having strong hydrogen bonds are preferred.
  • the pile yarn is a single nanofiber.
  • nanofibers unlike conventional skin care devices made of ultrafine fibers (microfibers), nanofibers can easily penetrate deep into skin grooves and pores, making it easier to remove dirt. This is because the nanofiber has a small fiber diameter and the nanofiber has a cross-sectional second moment, which is an index of the ease of deformation of the fiber, of 1.0 X 10 _32 to 2.5 X compared to the conventional ultrafine fiber. the high flexibility of 10- 3 times the small tool fibers is considered to be a factor. As a result, when the yarn yarn comes into contact with the skin, the nanofiber forming the pile yarn is deformed and dispersed, and immediately adheres to the skin grooves and pores without any gaps, thereby removing fine dirt (Fig. 5).
  • the stress applied to the skin is dispersed and the irritation and friction to the skin can be made extremely small, and the pores can be prevented from expanding.
  • the nanofiber enables the production of dense bubbles having a diameter of 1 X 10 1 ⁇ m or less, and the dirt behind the pores can also be adsorbed by the dense bubbles. This is more dense than the foam obtained with the conventional ultrafine fibers reported in Patent Document 3 mentioned above.
  • the number average single fiber fineness is 1 ⁇ 10 1 8 to 2.2 ⁇ 10 ” 3 dtex (in the case of nylon 6, the single fiber diameter corresponds to 1 to 500 nm).
  • the single fiber diameter corresponds to 1 to 500 nm.
  • 4 X 10 _4 dtex or less (Nylon 6 with a density of 1.14 gZcm 3 has a single fiber diameter of 211 ⁇ m), more preferably 2 ⁇ 10 _4 dtex or less (Nylon 6 has a single fiber diameter) in 149nm or less), more preferably in the case of l X 10 _4 dtex or less (nylon 6, 106 nm or less in single fiber diameter), more preferably, in the case of 8 X 10 one 6 ⁇ 6 X 10 _5 dtex (nylon 6,
  • the single fiber diameter is 30 to 82 nm.
  • the single fiber fineness based on the number average of nanofibers is 2.2 X 10 " 3 dte
  • the nanofiber can easily enter the skin groove and the back of the pores, and can easily remove the dirt.
  • the strength of nanofibers and, in turn, the yarn yarn is inferior.
  • a plurality of nanofibers are aggregated to form a bundle during drying.
  • the nanofiber bundle swells when it absorbs liquid (see Figure 4), and when in contact with the skin, the bundle is crushed and the nanofibers on its surface deform and disperse along the shape of the skin's grooves and pores. .
  • large dirt is crushed and collected in the back of the bundle of nanofibers.
  • Fine dirt in the skin grooves and pores is collected in the back of the bundle when the dispersed nanofibers adhere to the back of the skin grooves and pores without gaps (see Figures 6 and 7). The wiped dirt is collected in the back of the bundle of nanofibers, and can be prevented from reattaching to the skin.
  • the following method can be employed.
  • a polymer alloy melt having an easily soluble polymer as a sea (matrix) and a hardly soluble polymer as an island (domain) was formed and spun. Thereafter, it is cooled and solidified to form a fiber. Then, if necessary, after drawing and heat treatment to obtain a polymer alloy fiber, nanofibers can be obtained by removing the easily soluble polymer, preferably 99.9% or more, with a solvent.
  • an island in a polymer alloy fiber that is a precursor of a nanofiber is used.
  • the diameter of the nanofiber is almost determined by the size of (domain).
  • the size of the island (domain) can be controlled by controlling the kneading of the polymer, and it is preferable to perform high kneading with a kneading extruder, a stationary kneader, or the like.
  • the combination of polymers also affects the size of islands (domains).
  • the island (domain) polymer and the sea (matrix) polymer are preferably incompatible with each other.
  • SP value solubility parameter
  • the SP value is a parameter that reflects the cohesive force of a substance defined by (evaporation energy z molar volume) 1 2 .
  • the difference in SP value between the two polymers is 1 to 9 (Mj / m 3 ) 1/2 because it is easy to achieve both circularization of islands (domains) due to incompatibility and ultrafine dispersion.
  • Nylon 6 (N6) and polyethylene terephthalate (PET) have a difference in SP value (Mj / m 3 ) of 12 or so, and the preferred force N6 and polyethylene (PE) are SP values.
  • the difference is about 11 (MjZm 3 ) 1/2, which is a preferable example.
  • the melt viscosity also affects the size of islands (domains). If the melt viscosity of the polymer that forms the island component is set lower than that of the sea component, the island component polymer is likely to be deformed by shearing force. preferable. However, if the island component polymer is excessively low in viscosity, it tends to be seamed and the blend ratio with respect to the whole fiber cannot be increased. Therefore, the viscosity of the island component polymer is preferably 1Z10 or more of the sea component polymer viscosity.
  • Examples of the difficult solvent to dissolve the sea (matrix) polymer and the island (domain) polymer include an alkaline solution, an acidic solution, an organic solvent, and a supercritical fluid.
  • an alkaline solution for example, in the combination of nylon and polyester, nylon shows poor solubility and polyester shows easy solubility in alkaline solutions.
  • the material of the ground yarn constituting the yarn fabric in the skin care device of the present invention may be a synthetic fiber or a natural fiber.
  • the seam treatment is performed. In this case, it is the same material as the nanofiber used in the pile because it is not melted by sea removal treatment, and the material is preferred, and also from the viewpoints of design properties such as dyeing, texture, and feel during use. It is preferable.
  • the water absorption or oil absorption is equal to or less than that of the nanofibers constituting the pile yarn.
  • the single fiber fineness of the ground yarn more preferably it is preferred instrument more than 8 X 10_ 4 1
  • a woven fabric or a knitted fabric can be adopted.
  • Examples of knitting and Examples thereof include a circular knitted fabric, a tricot knitted fabric, and a double raschel knitted fabric.
  • the length of the pile in the pile fabric is preferably in the range of 1 to LOmm, more preferably in the range of 2 to 5mm.
  • the pile yarn which is a nanofiber, can be given a supple force, and a good wiping property and a comfortable feeling when wet can be obtained.
  • the thickness is 10 mm or less, it is possible to prevent the pile yarn from sleeping and the texture from being lowered.
  • the tip of the pile yarn made of nanofiber is cut.
  • the degree of freedom of the nanofiber in the yarn yarn is improved, and the tip force of the nanofiber becomes easy to penetrate into the fine pores and the textured portion of the skin, so that the wiping effect can be enhanced.
  • the stress applied to the skin during wiping can be further dispersed to provide a comfortable touch when wet (see Fig. 8).
  • the form of the skin care device of the present invention towels, mittens, gloves, finger sack, and the like can be employed. From the viewpoint that the method of use can be arranged according to the user's preference, it is preferably in the form of a towel. Also, in terms of ease of holding, a shape that covers hands and fingers, such as mittens, gloves, and finger sack, is preferable.
  • a sheet having a sheet shape and a pile projecting on both sides of the sheet shape is also a preferred form of the skin care device of the present invention.
  • the user can use the skin care device of the present invention without being conscious of the front and back, which improves usability and usability. it can.
  • piles may be directly applied to both sides of the pile fabric, but from the viewpoint of obtaining a high pile density, a pile fabric with piles protruding on one side is laminated.
  • a method of laminating and fixing pile fabric A method of sewing the end portion, a method of bonding with an adhesive such as urethane, and the like can be employed.
  • a medium such as a net that promotes foaming of the face wash may be used in combination.
  • the cushion material is covered with a pile fabric containing nanofibers made of nanofibers.
  • the shape may be mittens or gloves.
  • the method for producing the skin care device of the present invention is a method for producing the skin care device of the present invention, in which a pile fabric having a polymer alloy fiber composed of a sea component and an island component as a pile yarn is used.
  • the sea component dissolves, but the ground yarn does not dissolve, and is treated with a liquid to produce nanofibers having a single fiber fineness of 1 ⁇ 10 8 to 2.2 ⁇ 10 _3 dtex by number average It is characterized by including.
  • the method of desealing the polymer alloy fiber is preferred as a method of expressing nanofibers, but the ground yarn dissolves the sea component but the ground yarn does not dissolve, but in a liquid.
  • the sample was dissolved in chloroform and mixed with tetrahydrofuran to obtain a measurement solution. This was measured at 25 ° C using Gels Permeation Chromatography (GPC) Waters 2690 manufactured by Waters, and the weight average molecular weight was determined in terms of polystyrene.
  • GPC Gels Permeation Chromatography
  • image processing software WINROOF
  • WINROOF image processing software
  • a foamed polyethylene sheet (Toraypef (registered trademark) manufactured by Toray Industries, Inc.) was used as a pseudo skin for evaluation.
  • cosmetics with strong water resistance (Eyeliner Fluid manufactured by Shiseido Co., Ltd.) were applied in a circular shape with a diameter of lcm and dried for 12 hours under 20 ⁇ 2 ° C and 65 ⁇ 2% RH. .
  • the test piece was reciprocated 5 times with respect to the cosmetic-coated portion of the artificial skin at a pressure of 0.5 cN / mm 2 (300 g / 2. 5 cm 2 ), a speed of 2 cmZs, and a wiping width of 2 cm.
  • the degree of dirt removal after the wiping operation was visually observed and evaluated according to the following five levels. 5: All the dirt between the textures of the artificial skin was also removed.
  • Microscope removes dirt after wiping operation C magnification was 300 times) and evaluated in the following 5 levels.
  • an agar sheet was used in which agar (pure agar made by Sanada Co., Ltd.) was melted in water and solidified by cooling.
  • test piece Cut the test piece into 6cm x 8cm length, impregnate water with 2.6 times the weight of the test piece, wrap it around a rod made of silicon rubber (diameter approx. 8mm), and place it in a certain direction on the surface of the agar sheet. A wiping operation was performed.
  • the degree of scratches on the surface of the agar sheet after the wiping operation was visually observed and evaluated according to the following 5 levels.
  • a 10 cm x 10 cm polyethylene net (8 mesh) was used as a medium for promoting foaming, and this was wrapped in a tea-brush shape with a 15 cm x 15 cm test piece, and the mouth was closed with a cotton thread and closed.
  • a face wash solution (concentration 20% by mass, temperature 37 ° C.) was impregnated 0.3 times with respect to the mass of the test piece, and was bubbled 100 times with a pestle.
  • the surface shape of the obtained foam was observed with a microscope (Cience Co., Ltd., VH-6300C magnification: 300 times).
  • test piece was cut into a length of 6 cm ⁇ 8 cm, and was washed with a facial cleanser (“Dove (registered trademark) Moisture Foam F” manufactured by Woolever Japan Co., Ltd.), and then foamed.
  • Dove registered trademark
  • Moisture Foam F manufactured by Woolever Japan Co., Ltd.
  • melt viscosity 212Pa's (262 ° C, shear rate 121. 6sec—, melting point 220 ° C nylon 6 (N6) (45 mass%), weight average molecular weight 120,000, melt viscosity 30Pa * s (240 ° C, shear Weighed 2432s ec—, melting point 170 ° C, poly L-lactic acid (55% by mass) with optical purity of 99.5% or more separately, separately fed to the twin screw extruder kneader with the details below, 220 ° C
  • the polymer alloy chip was obtained by melt-kneading with the above.
  • Kneading section length Positioned on the discharge side from the effective screw length of 1Z3.
  • the obtained polymer alloy chip was supplied to a spinning machine, melted at 230 ° C, and the polymer alloy melt was formed with a metal nonwoven fabric having a limit filtration diameter of 15 ⁇ m in a spin block at a spinning temperature of 230 ° C. After filtration, the spinneret with a die diameter of 0.3 mm, a hole length of 0.55 mm, and a die surface temperature of 215 ° C was melt-spun.
  • the discharged yarn is cooled and solidified over lm with cooling air of 20 ° C, and the oil agent is applied with an oiling guide installed 1.8m below the base, taken up at a spinning speed of 3000mZ, and then drawn. Drawing was performed under the conditions of a temperature of 90 ° C, a draw ratio of 1.5 times, and a heat setting temperature of 130 ° C.
  • the obtained multi-filament of polymer alloy fiber was 133dtex, 48 filament, strength 3.6cNZdtex, elongation 40%, Worcester plaque 0.7%. Also obtained polymer The cross section of the alloy fiber was observed by TEM. Poly-L-lactic acid was the sea (matrix), N6 was the island (domain), and the island (domain) had a number average diameter of lOnm and a super differential dispersion. Was.
  • the polymer filament fiber multifilament was used as a pile yarn.
  • a circular knitted loop pile with a pile length of 2.2 mm was produced on a single circular knitting machine with a sinker pile using the multi-filament of the polymer alloy fiber as a pile yarn and the ground yarn.
  • the above knitted fabric is immersed in a 1% aqueous solution of sodium hydroxide and sodium hydroxide at a temperature of 98 ° C and a bath ratio of 1: 100 for 1 hour to obtain 99.9% or more of polylactic acid in the polymer alloy fiber.
  • a skin care device comprising a pile fabric composed of a pile yarn composed of a bundle of N6 nanofibers and a ground yarn composed of N6 multifilament was obtained.
  • the N6 nanofiber has a number average single fiber fineness of 1 X 10 " 4 within the range of IX 10 _8 to 4 X 10 _4 dtex in the above sampling (1) of 1500 samplings. It was dtex.
  • the polymer filament fiber multifilament was used as a pile yarn.
  • Example 1 The same thread as used in Example 1 was used as the ground yarn.
  • a pile knitted fabric was produced in the same manner as in Example 1 by using the above-mentioned yarn yarn and the above-mentioned ground yarn.
  • the above knitted fabric was subjected to sea removal treatment similar to that of Example 1, and then raised by emery processing to cut the tip of the loop pile to obtain a skin care device.
  • a multifilament of polymer alloy fibers similar to Example 1 was produced.
  • the polymer filament fiber multifilament was used as a pile yarn.
  • a pile knitted fabric was produced in the same manner as in Example 1 except that the above ground yarn was used.
  • the nozzle knitted fabric is subjected to sea removal treatment similar to that in Example 1 to obtain a skin care device. It was.
  • the N6 nanofiber has a number average single fiber fineness of 1 X 10 " 4 within the range of IX 10 _8 to 4 X 10 _4 dtex in the sampling of 1500 samples in the measurement (1). It was dtex.
  • a multifilament of polymer alloy fibers similar to Example 1 was produced.
  • the polymer filament fiber multifilament was used as a pile yarn.
  • a pile knitted fabric was produced in the same manner as in Example 1 by using the above-mentioned yarn yarn and the above-mentioned ground yarn.
  • the nozzle knitted fabric was subjected to sea removal treatment similar to that in Example 1.
  • the tip of the loop pile was cut by raising by emery processing to obtain a skin care device.
  • a multifilament of polymer alloy fibers similar to Example 1 was produced.
  • the polymer filament fiber multifilament was used as a pile yarn.
  • the double raschel knitted fabric was sliced into two pieces with a pile length of 1: 3 to obtain a cut pile knitted fabric having a pile length of 1.5 mm and a cut pile knitted fabric having a pile length of 4.5 mm.
  • Example 5 has a pile length of 1.5 mm and Example 6 has a pile length of 4.5 mm.
  • the N6 nanofibers had a fineness distribution in the sampling of 1500 of the measurement (1) within the range of 1 X 10 _8 to 4 X 10 _4 dtex.
  • the average single fiber fineness was 1 X 10 _4 dtex.
  • a multifilament of polymer alloy fibers similar to Example 1 was produced.
  • the polymer filament fiber multifilament was used as a pile yarn.
  • the double raschel knitted fabric was sliced into two pieces with a pile length of 5: 7 to obtain a cut pile knitted fabric having a pile length of 2.5 mm and a cut pile knitted fabric having a pile length of 3.5 mm.
  • the N6 nanofibers had a fineness distribution in the sampling of 1500 of the measurement (1) in the range of 1 X 10 _8 to 4 X 10 _4 dtex.
  • the average single fiber fineness was 1 X 10 _4 dtex.
  • Example 7 A pile length of 2.5 mm is designated as Example 7, and a pile length of 3.5 mm is designated as Example 8.
  • a multifilament of polymer alloy fibers similar to Example 1 was produced.
  • the polymer filament fiber multifilament was used as a pile yarn.
  • Example 1 The same thread as used in Example 1 was used as the ground yarn.
  • a pile knitted fabric was produced in the same manner as in Example 1 by using the above-mentioned yarn yarn and the above-mentioned ground yarn.
  • the nozzle knitted fabric was subjected to sea removal treatment similar to that of Example 1, and then raised by emery processing to cut the tip of the loop pile to obtain a cut pile knitted fabric. (So far, this is the same as in Example 2.)
  • the polymer filament fiber multifilament was used as a pile yarn.
  • Example 1 The same thread as used in Example 1 was used as the ground yarn.
  • a pile knitted fabric was produced in the same manner as in Example 1 by using the above-mentioned yarn yarn and the above-mentioned ground yarn.
  • the nozzle knitted fabric was subjected to sea removal treatment similar to that of Example 1, and then raised by emery processing to cut the tip of the loop pile to obtain a cut pile knitted fabric.
  • microfibers and facial cleansing cloths were evaluated.
  • a face-washing cloth (Puriri Keraki Refreshing Cross (registered trademark) manufactured by Lucky Corporation) was evaluated.
  • each of A and B was inferior to the skin care device of the present invention.
  • hypoallergenicity a strong scratch property was observed.
  • motor evaluation the results showed that the results of each item were not as good as those of the skin care device of the present invention.
  • large bubbles with a diameter of 100 m to about Lmm were generated, and the force could not be confirmed.
  • a face-washing cloth (“Toreshichi (registered trademark) face-washing cloth, manufactured by Toray Industries, Inc.) number average single fiber fineness of 0.08 dtex” was evaluated.
  • the skin care device of the present invention is extremely useful in the field of skin care devices because it is excellent in low irritation to the skin and has an excellent effect of wiping off dirt behind the pores.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Cosmetics (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Knitting Of Fabric (AREA)

Abstract

L’invention concerne un outil de soin pour la peau conférant une faible irritation à la peau, et ayant pour effet un nettoyage profond des pores de la peau. Cet outil de soin pour la peau comprend un tissu en velours composé d’un fil de velours et d’un fil de liage, ledit fil de velours étant composé d’une nanofibre constituée d’un polymère thermoplastique et dont les fibres uniques ont une finesse moyenne en nombre comprise entre 1x10-8 et 2,2x10-3 dtex.
PCT/JP2006/316584 2005-08-26 2006-08-24 Outil de soin pour la peau et son procede de fabrication WO2007023887A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06782988.7A EP1925231A4 (fr) 2005-08-26 2006-08-24 Outil de soin pour la peau et son procede de fabrication
US11/990,921 US20090145507A1 (en) 2005-08-26 2006-08-24 Skin Care Goods and Production Method Thereof

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Application Number Priority Date Filing Date Title
JP2005245705 2005-08-26
JP2005-245705 2005-08-26

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WO2007023887A1 true WO2007023887A1 (fr) 2007-03-01

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US (1) US20090145507A1 (fr)
EP (1) EP1925231A4 (fr)
KR (1) KR20080037049A (fr)
CN (1) CN101296633A (fr)
TW (1) TWI379023B (fr)
WO (1) WO2007023887A1 (fr)

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KR20080037049A (ko) 2008-04-29
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US20090145507A1 (en) 2009-06-11
EP1925231A4 (fr) 2014-10-01

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