EP1925231A1 - 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
EP1925231A1
EP1925231A1 EP06782988A EP06782988A EP1925231A1 EP 1925231 A1 EP1925231 A1 EP 1925231A1 EP 06782988 A EP06782988 A EP 06782988A EP 06782988 A EP06782988 A EP 06782988A EP 1925231 A1 EP1925231 A1 EP 1925231A1
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EP
European Patent Office
Prior art keywords
pile
skin care
care goods
skin
dtex
Prior art date
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Application number
EP06782988A
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German (de)
English (en)
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EP1925231A4 (fr
Inventor
Masanobu Takeda
Takahiro Hasui
Naomi Matsumoto
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Toray Industries Inc
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Toray Industries Inc
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Publication date
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Publication of EP1925231A1 publication Critical patent/EP1925231A1/fr
Publication of EP1925231A4 publication Critical patent/EP1925231A4/fr
Withdrawn legal-status Critical Current

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    • 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 goods utilizing nanofiber.
  • skin care used in the present invention is to make the entire skin of the body clean and refreshed, and the “skin care goods” is a goods generally used for that purpose.
  • a skin care goods employing an ultrafine fiber having a fineness of 0.001 to 1 dtex is disclosed (e.g., Patent Document 1).
  • the cleansing effect thereof is based on the fine foams generated by a soap solution passing through the fine spaces among the ultrafine fibers (see, e.g., Patent Document 1, paragraph number 0020), and the goods is still insufficient in removing highly persistent cosmetic preparation and others completely.
  • a skin care goods that wipes off dirt and old cuticle directly with an ultrafine fiber having a fineness of 0.001 to 1 dtex
  • Patent Documents 2 and 3 a skin care goods that wipes off dirt and old cuticle directly with an ultrafine fiber having a fineness of 0.001 to 1 dtex
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2004-332149
  • Patent Document 2 Japanese Unexamined Patent Publication No. 2004-329628
  • Patent Document 3 Japanese Registered Utility Model No. 3100954
  • Patent Document 4 Japanese Unexamined Patent Publication No. 2005-330637
  • An object of the present invention which was made under the circumstances above to solve the problems above in traditional technology, is to prove a skin care goods that is low irritant to the skin and superior in wiping efficiency of the dirt in the sulcus cutis and pores of the skin.
  • the present invention which solved the problems above, has the following aspects:
  • the present invention it is possible according to the present invention to provide a skin care goods that is superior in the wiping efficiency of removing dirt on the skin surface and also in the depth of the sulcus cutis and pores of the skin and yet low irritant to the skin.
  • the skin care goods utilizing nanofiber according to the present invention also provides the user with comfortableness.
  • the skin care goods according to the present invention is also superior in dimensional stability and texture and favorable in hand, compared to the fabrics only of nanofiber.
  • thermoplastic polymer for the nanofibers constituting the pile yarn for the skin care goods according to the present invention may be, for example, polyester, polyamide, polyolefin, polyphenylene sulfide (PPS) or the like.
  • polyamides such as nylon 6, which have strong hydrogen bonds, are preferable for preservation of the nanofiber bundle shape, as will be described below.
  • the pile yarn is made of nanofibers in the skin care goods according to the present invention.
  • the nanofiber when used, reaches into the depth of the sulcus cutis and pores of the skin and allows removal of the dirt therein, differently from skin care goods made of conventional ultrafine fibers (microfibers). It is probably because the nanofiber has a smaller fiber diameter, and also a small geometrical moment of inertia, an indicator of the deformability of nanofiber, of 1.0 ⁇ 10 -32 to 2.5 ⁇ 10 -3 , which is smaller than that of conventional ultrafine fibers, and thus, higher fiber flexibility.
  • the pile yarn which contains nanofiber filaments that are more deformable and dispersible when in contact with the skin, reaches together densely into the depth of sulcus cutis and pores of the skin, removing fine dirt therein (see Figure 5 ).
  • the nanofiber prohibits localized concentration of stress and also of friction on the skin significantly and enlargement of the pores.
  • the nanofiber also allows preparation of fine foams having a diameter of 1 ⁇ 10 1 ⁇ m or less and adsorption of the dirt in the depth of the pores on the fine foams.
  • the foam is smaller and more fine than that made with conventional ultrafine fibers reported for example in Patent Document 3 described above.
  • the fineness of the nanofiber is 1 ⁇ 10 -8 to 2.2 ⁇ 10 -3 dtex, as number-average monofilament fineness (corresponding to a monofilament diameter of 1 to 500 nm in the case of nylon 6), and preferably 4 ⁇ 10 -4 dtex or less (corresponding to a monofilament diameter of 211 nm, in the case of nylon 6 having a density of 1.14 g/cm 3 ), more preferably 2 ⁇ 10 -4 dtex or less (monofilament diameter of 149 nm or less in the case of nylon 6), still more preferably 1 ⁇ 10 -4 dtex or less (monofilament diameter of 106 nm or less in the case of nylon 6), and still more preferably, 8 ⁇ 10 -6 to 6 ⁇ 10 -5 dtex (monofilament diameter of 30 to 82 nm in the case of nylon 6).
  • the nanofiber fit into the depth of the sulcus cutis and pores of the skin easily and remove the dirt therein, by reducing the number-average monofilament fineness of the nanofiber to 2.2 ⁇ 10 -3 dtex or less.
  • the fineness is smaller than 1 ⁇ 10 -8 dtex, the nanofiber and also its pile yarn become unsatisfactory in strength.
  • the nanofiber preferably forms a bundle of filaments by aggregation under standard condition.
  • the nanofiber bundle swells by absorption of liquid (see Figure 4 ) and is flattened when in contact with the skin, with the surface nanofiber filaments deforming or dispersing themselves along the wrinklessulcus cutis and pores of the skin.
  • the deformation and dispersion of the nanofiber filaments leads to breakdown of larger dirt and takes the dirt deep into the nanofiber bundle.
  • Fine dirt present in the sulcus cutis and pores of the skin are collected deep into the bundle during high contact of the dispersed nanofiber filaments with the depth the sulcus cutis and pores of the skin (see Figures 6 and 7 ). The removed dirt is protected from re-deposition on the skin, as it is taken deep into the nanofiber bundle.
  • Such a nanofiber is obtained, for example, by the following method:
  • the polymer alloy fiber obtained is treated with a solvent for removal of the easily soluble polymer preferably to an extent of 99.9% or more, to give nanofiber.
  • the diameter of the nanofiber is determined mostly by the size of the islands (domains) in the nanofiber precursor polymer alloy fiber.
  • the size of the island (domain) may be controlled by adjustment of polymer blending, and intense blending in a kneading extruder, static mixer or the like is desirable.
  • the combination of polymers also exerts significant influence on the size of the island (domain).
  • the island (domain) polymer and the sea (matrix) polymer are preferably incompatible to each other, to make the island (domain) more circular in shape.
  • the polymer combination is preferably selected by using solubility parameter (SP value) as an indicator.
  • SP value is a parameter reflecting the cohesive force of substance, which is defined by (energy of vaporization/molar volume) 1/2 .
  • a difference of two polymer SP values of 1 to 9 (MJ/m 3 ) 1/2 is favorable both for the circularity of the island (domain) and ultrafine dispersion of the islands by incompatibilization.
  • nylon 6 (N6) and polyethylene terephthalate (PET) which have a SP value difference of about 6 (MJ/m 3 ) 1/2
  • PET polyethylene terephthalate
  • N6 and PE which have a SP value difference of about 11 (MJ/m 3 ) 1/2
  • unfavorable combination is an example of unfavorable combination.
  • the melt viscosity also influenced on the size of the island (domain). It is favorable to make the melt viscosity of the island-component polymer smaller than that of the sea-component polymer for production of nanofiber, because it facilitates deformation of the island-component polymer by shearing force and thus fine dispersion of the island-component polymer.
  • excessive reduction of the viscosity of the island-component polymer makes the polymer more like the sea-component polymer, prohibiting increase in the blend rate in the entire fiber, and thus, the viscosity of the island-component polymer is preferably 1/10 or more of the viscosity of the sea-component polymer.
  • the solvent dissolving the sea (matrix) polymer but hardly dissolving the island (domain) polymer is, for example, an alkaline solution, an acidic solution, an organic solvent, a supercritical fluid, or the like.
  • an alkaline solution for example, Nylon is hardly soluble, while polyester, easily soluble in alkaline solution.
  • the raw material for the ground yarn constituting the pile fabric in the skin care goods according to the present invention may be a synthetic or a natural fiber, but, if the polymer alloy fiber is converted into the pile yarn by sea-removing treatment after a pile fabrics is prepared, the raw material is preferably a material undissolved in the sea-removing treatment, more preferably the same as the nanofiber used as pile, from the points of freedom in designing for example of dyeing and also of the texture and touch feeling during use of the resulting goods.
  • the water- or oil-absorbing property thereof is preferably is not larger than that of the nanofiber for the pile yarn. It is thus possible to make the nanofiber pile filaments used as the skin-wiping layer hold aqueous or oil cleansing lotion or facial wash more efficiently.
  • the monofilament fineness of the ground yarn is preferably more than 8 ⁇ 10 -4 dtex, more preferably 1 ⁇ 10 -1 dtex or more. It is possible to improve the dimensional stability and the texture without sacrifice of the nanofiber wiping efficiency, by using such a ground yarn.
  • the pile fabric include woven and knit fabrics.
  • Typical examples of the knit fabrics include circular knitted fabric, tricot fabric, double raschel fabric, and the like.
  • the length of the pile in pile fabric is preferably in the range of 1 to 10 mm, more preferably in the range of 2 to 5 mm. It is possible to make the nanofiber pile filaments more flexible and provide the filaments with favorable wiping efficiency and comfortable texture when wet, by making the length 1 mm or more. It is also possible to prevent deterioration in texture by fall down of the pile filaments, by making the length not more than 10 mm.
  • the nanofiber pile filaments in the pile fabiric of the skin care goods according to the present invention are favorably cut pile. In this way, it is possible to increase the degree of freedom in movement of the nanofiber in pile yarn, to make the tip of the nanofiber fit into the sulcus cutis and pores of the skin, and to increase the wiping efficiency of the yarn. It is further possible to spread the stress applied to the skin widely during wiping and obtain comfortable texture under wet condition.(see Figure 8 ).
  • the possible shapes of the skin care goods according to the present invention include towel, mitten, gloves, finger cot, and the like.
  • the towel shape is preferable, because it allows modification of its use method according to the preference of the user.
  • shapes covering the hand or the finger such as mitten, gloves and finger cot are also favorable, from the point of easiness in handling.
  • double faced pile fabric is a favorable shape of the skin care goods according to the present invention. It is possible, by double faced pile fabric containing nanofiber pile yarns, to make the user use the skin care gooods according to the present invention without recognition of the front or rear face of it and improve the handling efficiency and the impression of use.
  • the pile filaments may be formed directly on both faces of the pile fabric, but, for preparation of a skin care goods with high pile density, it is preferable to laminated two single faced pile fabrics. For example, a method of sewing the edge of the fabric or a method of bonding the pile fabrics with an adhesive agent such as urethane adhesive may be used in laminating the pile fabrics.
  • a medium such as net that accelerates foaming of facial wash may be used in combination for more favorable foaming of the facial wash.
  • a cushion material covered with a pile fabric containing nanofiber pile yarns is also favorable, and the shape thereof may be mitten or gloves.
  • the method of producing a skin care goods according to the present invention is a method of producing the skin care goods according to the present invention, comprising a step of treating a pile fabric having pile yarns of polymer alloy fibers consisting of sea and island components with a liquid dissolving the sea component but not dissolving the ground yarn and forming nanofiber filaments having a number-average monofilament fineness of 1 ⁇ 10 -8 to 2.2 ⁇ 10 -3 dtex.
  • the method of subjecting a polymer alloy fiber to a sea-removing treatment is favorable for forming nanofiber filaments, and it is possible to obtain good form stability and comfortable texture of a pile fabricss even after sea-component removal, by carrying out the sea-removing treatment with a liquid dissolving the sea component but not dissolving the ground yarn, i.e., by using a ground yarn resistant to solubilization in the sea-removing treatment.
  • the artificial skin used for evaluation was an expanded polyethylene sheet ("Toraypef”®, manufactured by Toray Industries, Inc.).
  • a highly waterproof cosmetic preparation (eye liner fluid, manufactured by Shiseido Co., Ltd.) was applied thereon in a circular shape of 1 cm in diameter and dried at 20 ⁇ 2°C and 65 ⁇ 2% RH for 12 hours.
  • the test piece was cut into a piece of 6 cm in length and 8 cm in width; a cleansing lotion (white cleansing water, manufactured by Kose Cosmeport Corp.) was impregnated into the test piece in an amount of 2.6 times of the mass of the test piece; and the test piece was bonded to a silicone rubber plate (6 cm in length ⁇ 7 cm in width ⁇ 1 cm in thickness).
  • the artificial skin in the area coated with the cosmetic preparation was rubbed for wiping reciprocally five times with the test piece under a loaded pressure of 0.5 cN/mm 2 (300 g/2.5 cm 2 ), a velocity of 2 cm/s, and a wiping width of 2 cm. Removal of dirt after the wiping operation was evaluated by visual examination and rated in the following five categories.
  • a highly waterproof cosmetic preparation (eye liner fluid, manufactured by Shiseido Co., Ltd.) was applied in an area of 0.5 cm ⁇ 2 cm on the internal arm and dried thereon under normal temperature and normal humidity for 30 minutes.
  • the test piece was cut into a piece of 6 cm in length and 8 cm in width; a cleansing lotion (white cleansing water, manufactured by Kose Cosmeport Corp.) was impregnated into the test piece in an amount 2.6 times of the mass of the test piece; and the test piece was wound around a silicone rubber rod (diameter: approximately 8 mm), and the arm area previously coated with the cosmetic preparation was wiped ten times in a fixed direction. Removal of dirt after the wiping operation was evaluated under a microscope (VH-6300C manufactured by Keyence Corp., magnification: 300) and rated in the following five categories.
  • An agar sheet prepared by dissolving agar (pure agar, manufactured by Sanada Co., Ltd.) and solidifying the solution by cooling was used as the artificial skin for evaluation.
  • the test piece was cut into a piece of 6 cm in length and 8 cm in width; water was impregnated into the sheet in an amount of 2.6 times of the mass of the test piece; the test piece was wound around a silicone rubber rod (diameter: approximately 8 mm), and the surface of the agar sheet was wiped ten times in a fixed direction. The scratching on the agar sheet surface after wiping operation was observed by visual examination and rated in the following five categories.
  • a polyethylene net of 10 cm ⁇ 10 cm in dimension (8 mesh) was used as the medium accelerating foaming, and the net was enclosed tightly with the test piece of 15 cm ⁇ 15 cm, and the opening was sewn with a cotton yarn.
  • a face wash solution (concentration: 20 mass %, temperature 37°C) was impregnated therein in an amount of 30% of the mass of the test piece, and the test piece was beaten a hundred times with a pestle for foaming.
  • the surface shape of the foam obtained was observed under a microscope (VH-6300 C manufactured by Keyence Corp., magnification: 300 times).
  • test piece was cut into a piece of 6 cm in length and 8 cm in width, and a cleansing lotion (white cleansing water, manufactured by Kose Cosmeport Corp.) was impregnated into the test piece in an amount of 2.6 times of the test piece mass.
  • a makeup cleansing test by using the test piece was carried out with 50 females in 20's to 50's of age, and the efficiency of removal of cosmetic preparation, texture, skin irritation, convenience in use, and others were studied by questionnaire survey.
  • test piece was cut into a piece of 6 cm in length and 8 cm in width; and the test piece was then wetted with a facial wash ("Dove® moisture foam F” manufactured by Unilever Japan Co., Ltd.) and then allowed to foam.
  • a monitoring test by using the test piece was carried out with 50 females in 20's to 50's of age, and the efficiency of removal of cosmetic preparation, texture, skin irritation, convenience in use, and others were studied by questionnaire survey.
  • the polymer alloy chip obtained was supplied to a spinning machine, molten at 230°C therein, filtered through a metal nonwoven fabric having a critical filtration diameter of 15 ⁇ m in the spin block at a spinning temperature of 230°C, and melt-spun out of nozzles having a diameter of 0.3 mm and a length of 0.55 mm at a nozzle plate temperature 215°C.
  • the extruded filaments were solidified by cooling in the range of 1 m in length with cooling air at 20°C, applied with an oil by an oil supply guide placed 1.8 m below the nozzles, withdrawn at a spinning rate of 3000 m/minute, and then, drawn under the condition of a drawing temperature of 90°C at a drawing rate of 1.5 and a heat set temperature of 130°C.
  • the multifilament of polymer alloy fiber thus obtained had a size of 133 dtex/48 filaments, a strength of 3.6 cN/dtex, an elongation of 40%, and a Percentage Uster of 0.7%.
  • Observation of the crosssectional section of the polymer alloy fiber obtained under TEM revealed that it had a sea/island structure containing poly-L-lactic acid as the sea (matrix) and N6 as islands (domains) and the islands (domains) were dispersed very finely at a number-average diameter of 110 nm.
  • the multifilament of the polymer alloy fiber was used as the pile yarn.
  • a nylon 6 multifilament having a total fineness of 75 dtex of 24 filaments (monofilament fineness: 3.1 dtex) was used as the ground yarn.
  • a loop-pile knitted fabric having a pile length of 2.2 mm was prepared in a sinker-pile single circular knitting machine by using the multifilament of the polymer alloy fibers as the pile yarn and also as the ground yarn.
  • the pile knitted fabric was treated with 1% aqueous sodium hydroxide solution at a temperature of 98°C and a bath ratio of 1:100 for 1 hour by immersion, removing 99.9% or more of the polylactic acid in the polymer alloy fiber by hydrolysis, and thus, giving a skin care goods of a pile fabric having pile yarns of N6 nanofiber bundles and ground yarns of N6 multifilaments.
  • the skin care goods obtained gave favorable results both in the dirt-wiping efficiency tests A and B.
  • the skin care goods was extremely low irritative. It also gave favorable results in all test items in the monitoring test.
  • generation of fine foams having a diameter of 10 ⁇ m or less was observed.
  • a multifilament of polymer alloy fiber similar to that in Example 1 was prepared.
  • the multifilament of polymer alloy fiber above was used as the pile yarn.
  • the yarn the same as that used in Example 1 was used as the ground yarn.
  • a pile knitted fabric was prepared in a similar manner to Example 1 by using the pile yarn and the ground yarn.
  • the pile knitted fabric was subjected to sea-removing treatment in a similar manner to Example 1 and the tip of the loop pile was cut by emery processing, to give a skin care goods.
  • the skin care goods obtained gave favorable results both in the dirt-wiping efficiency tests A and B.
  • the irritation test there was almost no scratching observed on the surface. It also gave favorable results in all test items in the monitoring test.
  • the foaming efficiency test generation of fine foams having a diameter of 10 ⁇ m or less was observed.
  • a multifilament of polymer alloy fiber similar to that in Example 1 was prepared.
  • the multifilament of polymer alloy fiber was used as the pile yarn.
  • a nylon 6 multifilament having a total fineness of 110 dtex of 24 filaments (monofilament fineness: 4.6 dtex) was used as the ground yarn.
  • a pile knitted fabric was prepared in a similar manner to Example 1, except that the ground yarn above was used.
  • the pile knitted fabric was subjected to sea-removing treatment in a similar manner to Example 1, to give a skin care goods.
  • the fineness distribution of the N6 nanofiber was in the range of 1 ⁇ 10 -8 to 4 ⁇ 10 -4 dtex, and the number-average monofilament fineness thereof was 1 ⁇ 10 -4 dtex.
  • the skin care goods obtained gave favorable results both in the dirt-wiping efficiency test A and B.
  • the skin care goods was extremely low irritative. It also gave favorable results in all test items in the monitoring test.
  • the monofilament of ground yarn was thicker and rigidder than that of the skin care goods prepared in Example 1, and thus, there were many opinions that the goods was superior in dimensional stability and more favorable in the convenience in use in the questionnaire survey.
  • the foaming efficiency test generation of fine foams having a diameter of 10 ⁇ m or less was observed.
  • a multifilament of polymer alloy fiber similar to that in Example 1 was prepared.
  • the multifilament of polymer alloy fiber above was used as the pile yarn.
  • a nylon 6 multifilament having a total fineness of 110 dtex of 24 filaments (monofilament fineness: 4.6 dtex) was used as the ground yarn.
  • a pile knitted fabric was prepared in a similar manner to Example 1 by using the pile yarn and the ground yarn.
  • the pile knitted fabric was subjected to sea-removing treatment similarly to that used in Example 1.
  • the tip of the loop pile was cut by emery processing, to give a skin care goods.
  • the skin care goods obtained gave favorable results both in the dirt-wiping efficiency tests A and B.
  • the irritation test there was almost no scratching observed on the surface. It also gave favorable results in all test items in the monitoring test.
  • the texture was "very comfortable” than in Example 3 in the questionnaire survey.
  • the monofilament of ground yarn was thicker and rigidder than that of the skin care goods prepared in Example 2, and thus, there were many opinions that the goods was superior in dimensional stability and more favorable in the convenience in use in the questionnaire survey.
  • the foaming efficiency test generation of fine foams having a diameter of 10 ⁇ m or less was observed.
  • a multifilament of polymer alloy fiber similar to that in Example 1 was prepared.
  • the multifilament of polymer alloy fiber above was used as the pile yarn.
  • a nylon 6 multifilament having a total fineness of 110 dtex of 24 filaments (monofilament fineness: 4.6 dtex) was used as the ground yarn (similarly to Example 3).
  • a double raschel fabric having a gap between the two knitted fabrics at 6.0 mm was prepared by using the pile and ground yarns in a double raschel knitting machine.
  • the double raschel knitted fabric was cut into two fabrics in the region corresponding to a pile length of 1:3, to give 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 The two kinds of pile knitted fabrics were respectively subjected to sea-removing treatment similarly to that described in Example 1, to give skin care goods.
  • the goods having a pile length of 1.5 mm was prepared in Example 5, while that having a pile length of 4.5 mm was prepared in Example 6.
  • Each of the N6 nanofiber used in Examples 5 and 6 had a fineness distribution, as determined from 1,500 samples in measurement (1), in the range of 1 ⁇ 10 -8 to 4 ⁇ 10 -4 dtex, and the number-average monofilament fineness thereof was 1 ⁇ 10 -4 dtex.
  • a multifilament of polymer alloy fiber similar to that in Example 1 was prepared.
  • the multifilament of polymer alloy fiber above was used as the pile yarn.
  • a nylon 6 multifilament having a total fineness of 110 dtex of 24 filaments (monofilament fineness: 4.6 dtex) was used as the ground yarn (similarly to Example 3).
  • a double raschel fabric having a gap between the two knitted fabrics at 6.0 mm was prepared by using the pile and ground yarns in a double raschel knitting machine.
  • the double raschel fabric was cut into two fabrics in the region corresponding to a pile length of 5:7, to give 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 fineness distribution of the N6 nanofiber was in the range of 1 ⁇ 10 -8 to 4 ⁇ 10 -4 dtex, and the number-average monofilament fineness thereof was 1 ⁇ 10 -4 dtex.
  • Example 7 The two kinds of pile knitted fabrics were respectively subjected to sea-removing treatment similarly to that described in Example 1, to give skin care goods.
  • the goods having a pile length of 2.5 mm was prepared in Example 7, while that having a pile length of 3.5 mm was prepared in Example 8.
  • a multifilament of polymer alloy fiber similar to that in Example 1 was prepared.
  • the multifilament of polymer alloy fiber above was used as the pile yarn.
  • the yarn identical with that used in Example 1 was used as the ground yarn.
  • a pile knitted fabric was prepared in a similar manner to Example 1 by using the pile and ground yarns.
  • the pile knitted fabric was subjected to sea-removing treatment similarly to that used in Example 1, and then, the tip of the loop pile was cut by raising in emery processing, to give a skin care goods.
  • Two test pieces of the cut pile knitted fabric cut to a dimension suitable were prepared respectively, and sewn with a cotton thread with the ground yarn faces thereof facing each other, to give a skin care goods with the double faced piles.
  • the skin care goods obtained gave favorable results both in the dirt-wiping efficiency tests A and B.
  • the irritation test there was almost no scratching observed. It also gave favorable results in all test items in the monitoring test. Because two sheets were laminated, there were many opinions that the goods was superior in hand and convenience in use in the questionnaire survey.
  • the foaming efficiency test generation of fine foams having a diameter of 10 ⁇ m or less was observed.
  • a multifilament of polymer alloy fiber similar to that in Example 1 was prepared.
  • the multifilament of polymer alloy fiber above was used as the pile yarn.
  • the yarn identical with that used in Example 1 was used as the ground yarn.
  • a pile knitted fabric was prepared in a similar manner to Example 1 by using the pile and ground yarns.
  • the pile knitted fabric was subjected to sea-removing treatment similarly to that used in Example 1, and then, the tip of the loop pile was cut by emery processing, to give a skin care goods.
  • Two cut pile knitted fabrics obtained were piled on and bonded to each other with their ground yarn faces facing each other; and the ground yarn faces were bonded to each other with a urethane-based adhesive (Tyforce® 865HV, manufactured by Dainippon Ink and Chemicals, Inc.) in the dotted pattern in a coating amount of approximately 4 g/m 2 , to give a skin care goods with double faced pile.
  • a urethane-based adhesive Teyforce® 865HV, manufactured by Dainippon Ink and Chemicals, Inc.
  • the skin care goods obtained gave favorable results both in the dirt-wiping efficiency tests A and B.
  • the irritation test there was almost no scratching observed. It also gave favorable results in all test items in the monitoring test. Because two sheets were laminated, there were many opinions that the goods was superior in hand and convenience in use in the questionnaire survey.
  • the foaming efficiency test generation of fine foams having a diameter of 10 ⁇ m or less was observed.
  • microfiber facial washcloth (removal towel, available from Cogit Co., Ltd., number-average monofilament fineness: 0.22 dtex) was evaluated.
  • the washcloth was found to be unsatisfactory both in test items A and B, compared to the skin care device according to the present invention. Also in the irritation test, it showed strong scratching action. In addition, it was not found favorable compared to the skin care goods according to the present invention in each test item of the monitoring test. Further in the foaming efficiency test, there were observed only large foams having a diameter of about 100 ⁇ m to 1 mm.
  • a commercially available microfiber-based facial washcloth (Preri Cuticle-Refreshing Cloth®, manufactured by Lucky Corporation) was evaluated.
  • the washcloth was found to be unsatisfactory both in test items A and B, compared to the skin care goods according to the present invention. Also in the irritation test, it showed strong scratching action. In addition, it was not found favorable compared to the skin care goods according to the present invention in each test item of the monitoring test. In particular, there were many opinions that it was more irritant and stimulating to the skin and caused tingle after use. Also in the foaming efficiency test, there were observed only large foams having a diameter of about 100 ⁇ m to 1 mm.
  • a commercially available microfiber-based facial washcloth (Toraysee® facial washcloth, manufactured by Toray Industries, Inc., number-average monofilament fineness: 0.08 dtex) was evaluated.
  • Example 1 Example 2
  • Example 3 Example 4 Pile length 2.2mm 2.2mm 2.2mm 2.2mm Pile shape Loop Cut Loop Cut Ground varr dtex(dexitex)x f(filament 75 ⁇ 24 ⁇ 110 ⁇ 24 ⁇ Configuration Single- sided pile cloth Single- sided pile cloth Single- sided pile cloth Single- sided pile cloth Dirt-wiping effeciency test A 4 5 4 5 Dirt-wiping effeciency test R 4 5 4 5 Irritation test 4 5 4 5
  • Example 5 Example 6
  • Example 7 Example 8 Pile length 1.5mm 4.5mm 2.5mm 3.5mm Pile shape Cut Cut Cut Cut Cut Cut Ground varr dtex(dexitex)x f(filament 110 ⁇ 24 ⁇ 110 ⁇ 24 ⁇ Configuration Single- sided pile cloth Single- sided pile cloth Single- sided pile cloth Single- sided pile cloth Dirt-wiping effeciency test A 5 5 5 5 Dirt-wiping effeciency test R 5 5 5 5 5 Irritation test 4 5 5 5 5
  • Example 9 Example 10 Comparative Example 1 Comparative Example 2 Comparative Example 3 Pile length 22mm 22mm - - - Pile shape Cut Cut - - - Ground varr dtex(dexitex)x f(filament 75 ⁇ 24 ⁇ - - - Configuration Double- sided pile cloth (2 sheet sewn) Double- sided pile cloth (2 sheet sewn) Double- sided pile cloth pile cloth - - Dirt-wiping effeciency test A 5 5 3 3 2 Dirt-wiping effeciency test R 5 5 2 2 3 Irritation test 5 4 2 1 1
  • Example 1 Example 2
  • Example 3 Example 4
  • Sample description Pile length 2.2mm 2.2mm 2.2mm 2.2mm Pile shape Loop Cut Loop Cut Ground varn dtex(dexitex)x f(filament) 75 ⁇ 24 ⁇ 110 ⁇ 24 ⁇
  • Configuration Single- sided pile cloth Single- sided pile cloth Single- sided pile cloth Single- sided pile cloth
  • Questionnaire description When used as face wash paff cosmetic removal very favorble 33 42 33 40 Not different from when only facial wash was used 15 6 14 7 (Apparent) back staining of the dirt on cloth 2 2 3 3
  • Texture Very comfortable 32 43
  • 32 42 Comfortable 5 3 8 5 Not comfortable 7 2 3 3
  • Others 4 1 5 0 Skin irritation None
  • Others 8 8 7 2 Convenience in use Very good 20 25 27 30 Good 10 13 12 12 Fair 18 9 9 6 Bad 2 3 2 2 Very Bad 0 0 0 0 Others
  • Example 5 Example 6
  • Example 7 Example 8 Sample description pile length 1.5mm 4.5mm 2.5mm 3.5mm Pile shape Cut Cut Cut Cut Ground varn dtex(dexitex)x f(filament) 110 ⁇ 24 ⁇ 110 ⁇ 24 ⁇ Configuration Single- sided pile cloth Single- sided pile cloth Single- sided pile cloth Single- sided pile cloth Questionnaire description When used as face wash paff cosmetic removal very favorble 43 42 45 44 Not different from when only facial wash was used 7 2 3 3 (Apparent) back staining of the dirt on cloth 0 6 2 3 Texture Very comfortable 42 48 48 48 Comfortable 5 0 0 0 Not comfortable 2 0 0 0 Unpleasant 1 2 2 2 Others 0 7 0 0 Skin irritation None 32 48 42 47 Some 7 0 3 0 Significant 3 0 0 0 Others 8 2 5 3 Convenience in use Very good 27 42 38 35 Good 8 3 5 3 Fair 13 2 2 2 Bad 0 0 2 2 Very Bad 0 0 0 0 Others 2 3 3 8
  • Example 9 Example 10 Comparative Example 1 Comparative Example 2 Comparative Example 3 Sample description pile length 2.2mm 2.2mm - - - pile shape Cut Cut - - - Ground varn dtex(dexitex)x f(filament) 75 ⁇ 24 ⁇ - - - Configuration Double-sided pile cloth (2 sheet sewn) Double-sided pile cloth (2 sheet sewn) Double- sided pile cloth - - Questionnaire description When used as face wash paff cosmetic removal very favorble 43 47 23 23 22 Not different from when only facial wash was used 5 2 15 17 17 (Apparent) back staining of the dirt on cloth 2 1 12 10 11 Texture Very comfortable 44 43 20 12 8 Comfortable 3 2 8 10 10 Not comfortable 0 0 10 18 22 Unpleasant 0 0 10 8 8 Others 3 5 2 2 2 2 Skin irritation None 40 42 17 5 5 5 Some 3 2 13 15 8 Significant 0 0 18 26 33 Others 7 6 2 4 4 Convenience in use Very good 47 45 30 15 20 Good 2 2 7 10 5
  • Example 1 Example 2
  • Example 3 Example 4
  • Sample description Pile length 2.2mm 2.2mm 2.2mm 2.2mm Pile shape Loop Cut Loop Cut Ground yarn dtex(dexitex)x f(filament) 75 ⁇ 24 ⁇ 110 ⁇ 24 ⁇
  • Configuration Single- sided pile cloth Single- sided pile cloth Single- sided pile cloth Single- sided pile cloth
  • Questionnaire description When used as face wash puff Dirt removal Very favorable 34 43 33 43 Not different from when only facial wash was used 13 7 14 7 (Apparent) back staining of the dirt on cloth 3 0 3 0 Texture Very comfortable 32 47 33 45 Comfortable 5 0 8 2 Not comfortable 7 2 5 0 Unpleasant 2 1 2 2 Others 4 0 2 1 Skin irritation None 35 40 37 43 Some 5 2 5 2 Significant 2 0 3 0 Others 8 8 5 5 Convenience in use Very good 20 20 30 32 Good 10 8 10 15 Fair 15 13 5 2 Bad 3 3 2 0 Very Bad 2 6 2 1 Others 0 0 1 0 Possibility of future use
  • Example 5 Example 6
  • Example 7 Example 8
  • Sample description Pile length 1.5mm 4.5mm 2.5mm 3.5mm Pile shape Cut Cut Cut Cut Ground yarn dtex(dexitex)x f(filament) 110 ⁇ 24 ⁇ 110 ⁇ 24 ⁇
  • Configuration Single- sided pile cloth Singe- sided pile cloth Single- sided pile cloth Singe- sided pile cloth Questionnaire description When used as face wash puff Dirt removal Very favorable 45 45 47 45 Not different from when only facial wash was used 5 5 2 3 (Apparent) back staining of the dirt on cloth 0 0 1 2 Texture Very comfortable 43 48 48 48 Comfortable 3 0 0 0 Not comfortable 2 0 0 0 Unpleasant 2 2 2 2 Others 0 0 0 0 Skin irritation None 32 48 42 47 Some 7 0 3 0 Significant 3 0 0 0 Others 8 9 5 3 Convenience in use Very good 33 42 38 35 Good 10 3 5 3 Fair 5 2 2 2 Bad 0 0 2 2 Very Bad 0 0 0
  • Example 9 Example 10 Comparative Example 1 Comparative Example 2 Comparative Example 3 Sample description Pile length 2.2mm 2.2mm - - - Pile shape Cut Cut - - - Ground yarn dtex(dexitex)x f(filament) 75 ⁇ 24 ⁇ - - - Configuration Double-sided pile cloth (2 sheet sewn) Double-sided pile cloth (2 sheet sewn) Double- sided pile cloth - - Questionnaire description When used as face wash puff Dirt removal Very favorable 43 45 23 18 15 Not different from when only facial wash was used 5 3 17 19 20 (Apparent) back staining of the dirt on cloth 2 2 10 13 15 Texture Very comfortable 44 42 17 13 8 Comfortable 3 7 8 13 12 Not comfortable 3 0 13 17 22 Unpleasant 0 0 10 3 3 Others 0 1 2 4 5 Skin irritation None 42 38 17 10 15 Some 5 7 15 13 8 Significant 0 0 15 24 17 Others 3 5 3 3 10 Convenience in use Very good 42 40 22 18 15 Good 7 7 5 5 5 Fair
  • the skin care goods according to the present invention which is significantly less simulative to the skin and superior in the efficiency of wiping off the dirt in the depth of the pores, is extremely useful in the field of skin care goods.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Knitting Of Fabric (AREA)
  • Cosmetics (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
EP06782988.7A 2005-08-26 2006-08-24 Outil de soin pour la peau et son procede de fabrication Withdrawn EP1925231A4 (fr)

Applications Claiming Priority (2)

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JP2005245705 2005-08-26
PCT/JP2006/316584 WO2007023887A1 (fr) 2005-08-26 2006-08-24 Outil de soin pour la peau et son procede de fabrication

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EP1925231A1 true EP1925231A1 (fr) 2008-05-28
EP1925231A4 EP1925231A4 (fr) 2014-10-01

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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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WO2013150528A3 (fr) * 2012-04-04 2014-06-12 Argaman Technologies Ltd. Système de fils à combinaison de composants multiples permettant une gestion d'humidité dans des textiles et système de production associé

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US8308702B2 (en) * 2010-04-21 2012-11-13 Johnson & Johnson Consumer Companies, Inc. Foaming porous pad for use with a motorized device
US8578972B2 (en) * 2011-04-08 2013-11-12 Hongwei Duan Fabrics having double layers of terry or pile
US20150173485A1 (en) * 2012-05-24 2015-06-25 Taiki Corp., Ltd. Cosmetic puff
KR102104135B1 (ko) * 2013-07-12 2020-04-23 쓰리엠 이노베이티브 프로퍼티즈 캄파니 설거지용 수세미
CN105040255A (zh) * 2015-06-15 2015-11-11 施健 双面绒毛湿巾及其制备方法
CN106473646A (zh) * 2016-02-17 2017-03-08 长沙宝芳日用品有限公司 一种清洗沐浴手套
CN107245805A (zh) * 2017-04-24 2017-10-13 苏州迈缇康医疗科技有限公司 一种野外急救用皮肤清创带环及其制备方法
CN107090647A (zh) * 2017-05-11 2017-08-25 安徽库仑环境科技有限公司 一种用于防霾窗的导静电纱网的制作方法
KR102372722B1 (ko) * 2017-11-20 2022-03-11 (주)아모레퍼시픽 모공 모사체, 이를 이용한 피부 세정력을 갖는 물질의 평가 방법, 및 이를 이용한 피부 세정력을 갖는 물질의 스크리닝 방법

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WO2007023887A1 (fr) 2007-03-01
TWI379023B (en) 2012-12-11
CN101296633A (zh) 2008-10-29
US20090145507A1 (en) 2009-06-11
KR20080037049A (ko) 2008-04-29
EP1925231A4 (fr) 2014-10-01

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