WO2022030180A1 - 化粧ブラシ用毛材、その毛材を用いた化粧ブラシ - Google Patents

化粧ブラシ用毛材、その毛材を用いた化粧ブラシ Download PDF

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Publication number
WO2022030180A1
WO2022030180A1 PCT/JP2021/025894 JP2021025894W WO2022030180A1 WO 2022030180 A1 WO2022030180 A1 WO 2022030180A1 JP 2021025894 W JP2021025894 W JP 2021025894W WO 2022030180 A1 WO2022030180 A1 WO 2022030180A1
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WO
WIPO (PCT)
Prior art keywords
brush
hair
hair material
synthetic resin
core
Prior art date
Application number
PCT/JP2021/025894
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
彰子 櫟
悠佳 原
寿彦 大平
興司 中村
Original Assignee
株式会社タイキ
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 株式会社タイキ filed Critical 株式会社タイキ
Priority to KR1020227045876A priority Critical patent/KR20230019143A/ko
Priority to JP2022541175A priority patent/JP7514488B2/ja
Priority to CN202180042051.9A priority patent/CN115697136A/zh
Priority to US18/003,135 priority patent/US20230232977A1/en
Priority to EP21853436.0A priority patent/EP4193874A4/en
Publication of WO2022030180A1 publication Critical patent/WO2022030180A1/ja

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    • 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
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
    • 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
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
    • A45D34/042—Appliances specially adapted for applying liquid, e.g. using roller or ball using a brush or the like
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/021—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups arranged like in cosmetics brushes, e.g. mascara, nail polish, eye shadow
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/06—Arrangement of mixed bristles or tufts of bristles, e.g. wire, fibre, rubber
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0207—Bristles characterised by the choice of material, e.g. metal
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/023—Bristles with at least a core and at least a partial sheath
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0238—Bristles with non-round cross-section
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0292—Bristles having split ends
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/04—Preparing bristles
    • A46D1/05—Splitting; Pointing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • 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
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1046—Brush used for applying cosmetics
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/061—Load-responsive characteristics elastic
    • 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
    • D10B2503/00—Domestic or personal

Definitions

  • the present invention relates to a hair material for a makeup brush, an aggregate of hair materials for a makeup brush, and a makeup brush.
  • natural animal hair such as squirrel hair, horsehair, and goat hair has been used as the hair material for makeup brushes. It is said that natural animal hair has good inclusion and release properties in liquid or powdered cosmetics, has soft hair, and has a good feeling of use such as on the skin, and is often used by many users.
  • squirrel hair makeup brushes and goat hair makeup brushes are highly evaluated by consumers as the finest animal hair makeup brushes.
  • natural animal hair has many advantages, its supply is limited because it is a natural resource, and it is becoming increasingly difficult to obtain it from the viewpoint of animal welfare and global ecological protection. Therefore, in recent years, as a substitute for natural animal hair, a hair material for a decorative brush made from synthetic fibers has been proposed.
  • Patent Document 1 proposes a hair material for a brush, such as a cosmetic brush, which contains polypropylene terephthalate as a main component and exhibits a specific bending recovery rate. Brush bristles made only of polypropylene terephthalate are more durable than brush bristles made only of polybutylene terephthalate, even if the tip is tapered, and moreover, conventional brush bristles. It is specifically disclosed that the material has a soft feeling that is more flexible than the material (see Patent Document 1).
  • Patent Document 2 proposes a hair material for a brush in which a tapered portion is formed at one end of a synthetic resin monofilament.
  • the cross-sectional shape of the tapered part By making the cross-sectional shape of the tapered part a circular cross-section and the cross-sectional shape of the main body other than the tapered part an eight-leaf shape, it has both excellent application performance for liquid cosmetics and a feeling of use comparable to natural animal hair. , It is specifically disclosed that it is a hair material suitable for a decorative brush application (see Patent Document 2).
  • the present invention is a hair material for a cosmetic brush made of a synthetic resin, which is suitable for applying each of powdered cosmetics and liquid cosmetics, and more specifically, has good catch and release property for powdered or liquid cosmetics. It is an object of the present invention to provide an aggregate of hair materials for a decorative brush and a decorative brush using them.
  • a hair material for a decorative brush made of an S-twisted or Z-twisted core-sheath composite monofilament having a specific cross-sectional shape has a core portion made of a different material.
  • the two-layer structure of the sheath provides a good balance between softness and repulsive force, and makes it a hair material for cosmetic brushes that has extremely excellent catch and release properties for powdery or liquid cosmetics. It has come to a solution.
  • the present invention has the following gist. 1.
  • the core is made of synthetic resin A
  • the sheath is made of synthetic resin B, which is different from synthetic resin A.
  • a hair material for a decorative brush characterized in that the cross section of the core-sheath composite monofilament in the direction perpendicular to the fiber axis has an eyebrows shape.
  • the core-sheath composite monofilament is characterized by having tapered details.
  • the listed hair material for makeup brushes. 3.
  • the tapered details are branched.
  • the synthetic resin A and the synthetic resin B are each made of a polyester resin. ⁇ 3.
  • the synthetic resin A and the synthetic resin B are each one selected from polytrimethylene terephthalate, polyethylene terephthalate and polybutylene terephthalate.
  • the core is made of synthetic resin A
  • the sheath is made of synthetic resin B, which is different from synthetic resin A.
  • a hair material aggregate for a decorative brush wherein the cross section in the direction perpendicular to the fiber axis of the core-sheath composite monofilament has a similar eyebrows shape. 7.1. ⁇ 5.
  • a makeup brush characterized in that the hair material aggregate for a makeup brush described in the above is used for at least a part of the hair material aggregate.
  • the hair material for a decorative brush of the present invention has three unique three-dimensional shapes: twist, a specific cross-sectional shape, and a core-sheath structure.
  • twist By having a two-layer structure of a core portion and a sheath portion made of different materials, it is possible to express the individual characteristics of the two different materials.
  • the softness, elasticity, and tactile sensation can be adjusted, and the softness, elasticity, and tactile sensation can be adjusted, making it suitable for both powdery and liquid cosmetics. It can be used as a hair material.
  • the hair material for a decorative brush of the present invention which has a two-layer structure of a core portion and a sheath portion by combining two different materials, has a good balance between softness and repulsive force, and is excellent in softness to the skin.
  • both elasticity and elasticity it can be made similar to or better than a makeup brush using natural animal hair.
  • the combination of the three unique three-dimensional shapes exerts an effect more than the additive effect, and realizes better performance than natural animal hair in catch and release property for powdery or liquid cosmetics.
  • by providing the tapered details it is possible to obtain a hair material for a decorative brush having a tactile sensation comparable to that of natural animal hair, and elasticity and softness.
  • FIG. 3 is a schematic cross-sectional view of a core-sheath composite monofilament having an eyebrows shape in the hair material for a decorative brush of the present invention. It is sectional drawing which shows one example of the eyebrows shape of this invention.
  • (A) to (C) are schematic cross-sectional shapes not included in the present invention. It is a graph which shows the evaluation result of "evaluation 4 of use performance of a cosmetic brush" of an Example.
  • the present invention comprises an S-twisted or Z-twisted core-sheath composite monofilament in which the core portion is composed of a synthetic resin A and the sheath portion is composed of a synthetic resin B different in type from the synthetic resin A.
  • the present invention relates to a hair material for a decorative brush, an aggregate of hair materials for a decorative brush, and a decorative brush whose cross section in a direction perpendicular to the fiber axis has an eyebrows shape.
  • the present invention will be described in detail.
  • the hair material for a decorative brush of the present invention comprises an S-twisted or Z-twisted core-sheath composite monofilament. That is, it has a spiral structure of either "S-twisted hair material (right-handed)" or "Z-twisted hair material (left-handed)", and unlike straight fibers and wavy fibers, it is orthogonal to the spiral axis. It has a three-dimensional spread in the direction of the spiral.
  • the volume occupied by one hair material having such a twisted spiral structure is larger than that of a hair material having a flat zigzag structure formed by a conventionally known gear crimp method, and is used for the decorative brush of the present invention.
  • a hair material aggregate for a makeup brush or a makeup brush made of hair material has a high fluffy and voluminous feeling by suppressing the overlap and adhesion between the hair materials even in a stationary state and containing many voids inside. Further, it is preferable to combine the S twist and the Z twist because the number of internal voids is increased and the three-dimensional effect can be enhanced.
  • the number of twists of the hair material for a decorative brush of the present invention forms a gap between adjacent hair materials for holding a powdery or liquid cosmetic when the hair material aggregate for a decorative brush or a decorative brush is used. Therefore, it is preferable to set it within the range of 30 T / m (twist / m) or more and 100 T / m (twist / m) or less in both S twist and Z twist, and it is preferable to set it within the range of 40 T / m (twist / m). ) Or more and 90 T / m (twist / m) or less is more preferable.
  • a spiral structure can be provided with a wavelength width of more than 10 mm and 35 mm or less in the length direction of the fiber.
  • a strong twist should be used to shorten the wavelength width.
  • the wavelength width is reduced by reducing the number of twists (sweet twist). Is getting longer.
  • the wavelength width of the hair material for a decorative brush of the present invention is preferably in the range of 11 mm or more and 25 mm or less, and more preferably 12 mm or more and 20 mm or less.
  • the hair material for a decorative brush of the present invention has an eyebrows-shaped cross section in a direction perpendicular to the fiber axis of an S-twisted or Z-twisted core-sheath composite monofilament.
  • the cross-sectional shape of the hair material for a decorative brush of the present invention will be described with reference to FIGS. 1 to 3.
  • Both FIGS. 1 and 2 are schematic cross-sectional shapes of the hair material for a decorative brush of the present invention.
  • 3 (A) to 3 (C) are schematic cross-sectional shapes not included in the present invention. As shown in FIG.
  • the eyebrows-shaped shape of the core-sheath composite monofilament cross section in the present invention means a bale-shaped shape that is long like a cocoon made by a silk moth and has a gentle constriction in the central portion (body portion).
  • the cross-sectional shape without a constriction in the central portion (body portion) as in FIG. 3A is not included.
  • the eyebrows-shaped shape of the core-sheath composite monofilament cross section in the present invention includes those having a large constriction in the central portion (body portion) as shown in FIG. 2, as shown in FIGS. 3 (B) and 3 (C). It does not include those with a constriction such as a sharp groove. As shown in FIGS.
  • the eyebrows-shaped cross-section of the core-sheath composite monofilament in the present invention has an "angle" of 90 degrees formed by two tangents (dotted lines) along the gentle constriction with the central portion of the constriction as the base point. It is characterized by being larger and smaller than 180 degrees.
  • the eyebrows-shaped shape of the core-sheath composite monofilament cross section in the present invention preferably has an "angle" of 100 degrees or more, more preferably 120 degrees or more, and even more preferably 130 degrees or more. In the embodiment not included in the present invention, as shown in FIG.
  • the "angle" formed by the two tangent lines (dotted lines) along the constriction is smaller than 90 degrees with the central portion of the constriction as the base point, and the vertical angle is acute.
  • a groove is constructed.
  • the cross section of the core portion in the present invention in the direction perpendicular to the fiber axis has an elliptical shape.
  • the present inventor has confirmed that the hair material for a decorative brush has improved catchability (impregnation) with respect to powdery or liquid cosmetics when vertical grooves are present in the length direction of the fibers. However, if the flutes have an acute angle (within 90 degrees), the powdery or liquid cosmetics contained in the hair material for the decorative brush will be retained in the flutes and will be released (released).
  • the hair material for a decorative brush of the present invention is a eyebrows type having a core-sheath composite monofilament cross section in the present invention having a gentle streamline, that is, a constriction having an angle of more than 90 degrees and less than 180 degrees. It has been found that the shape thereof exhibits excellent catch-and-release property, particularly release property (release property) for powdery or liquid cosmetics, and has completed the present invention.
  • FIG. 1 The shaded portion in FIG. 1 is the sheath portion of the hair material for the decorative brush of the present invention, and the dot portion is the core portion of the hair material for the decorative brush of the present invention.
  • a is the major axis of the sheath portion of the present invention (hereinafter referred to as the major axis a of the sheath portion)
  • b is the recessed width of the sheath portion (hereinafter referred to as the recessed width b of the sheath portion)
  • c is the minor axis of the sheath portion.
  • d is the recessed diameter of the sheath portion (hereinafter referred to as the recessed diameter d of the sheath portion)
  • e is the major axis of the core portion of the present invention (hereinafter referred to as the major axis of the core portion e).
  • F means the minor axis of the core portion (hereinafter, referred to as the minor axis of the core portion f).
  • the sheath portion major axis a is in the range of 100 ⁇ m or more and 200 ⁇ m or less, and in particular, the range of 105 ⁇ m or more and 170 ⁇ m or less is preferable, and the range of 110 ⁇ m or more and 160 ⁇ m or less is more preferable.
  • the sheath recess width b is in the range of 40% or more and 75% or less of the sheath major axis a
  • the sheath minor axis c is in the range of 10 ⁇ m or more and 100 ⁇ m or less
  • the sheath recess diameter d is 40 of the sheath minor axis c. % Or more and 95% or less.
  • the aspect ratio (a / d) of the sheath portion major diameter a and the sheath portion recess diameter d is preferably in the range of 1 or more and 3 or less. Further, the ratio (d / c) of the sheath portion recess diameter d and the sheath portion minor diameter c is preferably in the range of 0.4 or more and less than 1.0. Further, in the hair material for a decorative brush of the present invention, the ratio (e / a) of the core portion major axis e and the sheath portion major axis a is preferably in the range of 0.5 or more and 0.9 or less, preferably 0.6. It is more preferable that it is in the range of 0.8 or more.
  • the ratio (f / c) of the minor diameter f of the core portion and the minor diameter c of the sheath portion is preferably in the range of 0.5 or more and 0.9 or less, and preferably in the range of 0.6 or more and 0.8 or less. And more preferable.
  • the sheath portion major diameter a, the sheath portion recess width b, the sheath portion minor diameter c, the sheath portion recess diameter d, the core portion major diameter e, and the core portion minor diameter f are within the above ranges, they are caught against powdery or liquid cosmetics. & Demonstrates excellent performance in terms of release.
  • the hair material for a decorative brush of the present invention has an S-twisted or Z-twisted twisted structure, has an eyebrows-shaped cross section, and has a two-layer structure of a core portion and a sheath portion made of different materials.
  • the combination of the three unique three-dimensional shapes exerts a synergistic effect, the balance between softness and repulsive force is improved, and the effect of having both softness and elasticity with excellent tactile sensation to the skin is achieved. Further, it exhibits an extremely excellent initial release property in terms of catch and release property for powdery or liquid cosmetics, particularly release property (release property) for powdery or liquid cosmetics.
  • the hair material for a decorative brush of the present invention is made of a core-sheath composite monofilament in which the core portion is composed of a synthetic resin A and the sheath portion is composed of a synthetic resin B different in type from the synthetic resin A.
  • "different types" in the present invention means that the types of the synthetic resin constituting the synthetic resin A and the synthetic resin constituting the synthetic resin B are slightly different.
  • the core portion of Example 1 is composed of polybutylene terephthalate
  • the sheath portion is composed of polytrimethylene terephthalate.
  • the polybutylene terephthalate, which is the synthetic resin A constituting the core portion, and the polytrimethylene terephthalate, which is the synthetic resin B constituting the sheath portion are different from each other.
  • the sheath portion is composed of synthetic resin B, which is different in type from synthetic resin A.
  • the core portion is composed of polybutylene terephthalate
  • the sheath portion is composed of polytrimethylene terephthalate and polybutylene terephthalate, which also constitutes the synthetic resin A constituting the core portion and the sheath portion.
  • the synthetic resin A and the synthetic resin B one or more synthetic resins such as a polyamide resin, a polyolefin resin, and a polyester resin can be selected or used in combination, but the synthetic resin A and the synthetic resin B can be used. It is important that the types of synthetic resin B are different.
  • the synthetic resin A and the synthetic resin B can be selected from polyester resins, which have appropriate rigidity and durability as hair materials for decorative brushes, and are extruded, twisted, tapered, etc. It is suitable because it is excellent in.
  • the synthetic resin A and the synthetic resin B are preferably one selected from polyester resins such as polytrimethylene terephthalate, polyethylene terephthalate, polybutylene terephthalate, and polylactic acid, respectively.
  • the synthetic resin A and the synthetic resin B are selected from polytrimethylene terephthalate (PTT), polyethylene terephthalate (PET), and polybutylene terephthalate (PBT), respectively, in that they have appropriate flexibility and elasticity. More preferably, it is a seed.
  • the core-sheath composite monofilament of the present invention may contain conventional additives such as heat resistant agents, weather resistant agents, plasticizers, and colorants as long as the object of the present invention is not impaired.
  • the decorative brush of the present invention is characterized in that the hair material for a decorative brush of the present invention or the hair material aggregate for a decorative brush of the present invention is used for at least a part thereof. More specifically, the decorative brush of the present invention preferably contains the hair material for the decorative brush of the present invention or the hair material aggregate for the decorative brush of the present invention in an amount of 10% by weight or more of the entire hair material for the decorative brush. It is more preferably contained in an amount of 25% by weight or more, further preferably contained in an amount of 25% by weight or more, and particularly preferably contained in an amount of 30% by weight or more.
  • the decorative brush of the present invention contains the hair material for the decorative brush of the present invention or the hair material aggregate for the decorative brush of the present invention in a range of 10% by weight or more and 100% by weight or less of the entire hair material for the decorative brush.
  • it also has excellent softness and elasticity to the touch on the skin.
  • the decorative brush of the present invention containing the hair material for a decorative brush of the present invention or the hair material aggregate for a decorative brush of the present invention in an amount of 30% by weight or more of the total hair material for a decorative brush has a sufficient effect of the present invention. Can be demonstrated.
  • a hair material for a makeup brush made of synthetic fibers such as nylon fiber and polyester fiber may be used except for the hair material for the makeup brush of the present invention or the hair material aggregate for the makeup brush of the present invention.
  • the tip of the core-sheath composite monofilament is processed so as to have a tapered tip. Further, it is more preferable that the tapered details are processed so as to branch.
  • a core-sheath composite monofilament with an eyebrows-shaped cross section After twisting the core-sheath composite monofilament with the above-mentioned number of twists, the twisted core-sheath composite monofilament is heated at a temperature equal to or lower than the melting point of the synthetic resin and heat-set.
  • the heat setting time depends on the temperature, but is, for example, about 5 minutes at a dry heat of 185 ° C.
  • the heat-set core-sheath composite monofilament is cut into a predetermined length, for example, a length of 25 mm or more, preferably 50 mm or more and 100 mm or less.
  • the cut core-sheath composite monofilament may form a tapered tip at the tip, if necessary.
  • a catalyst for promoting hydrolysis is added to a strong alkaline solution (for example, an aqueous solution of sodium hydroxide) and kept at a constant temperature condition, and the cut core-sheath composite monofilament is immersed from the tip to the vicinity of the center. ..
  • a strong alkaline solution for example, an aqueous solution of sodium hydroxide
  • the eyebrows-shaped constricted portion of the core-sheath composite monofilament cross section is melted, the tip of the tip is branched into two, and a sharpened hair material for a decorative brush is obtained.
  • This method is suitable because it is possible to easily form a hair material for a decorative brush having branched tips.
  • the length of the details may be in the range of 1 to 30 mm depending on the purpose of use and the application, and the length of the branched portion may be in the range of 0.1 to 20 mm.
  • the bundle of core-sheath composite monofilaments is then washed with water and dried. Then, a bundle of core-sheath composite monofilaments is combed and twisted to form one hair material for a decorative brush.
  • the hair material for a decorative brush thus obtained has a cocoon-shaped cross section in the direction perpendicular to the fiber axis of the monofilament, and a trace of heat-set twist remains, and has a specific cross-sectional shape and a spiral. It will be in a state with a structure. Further, by performing the alkaline treatment, a hair material for a decorative brush having branched details can be obtained. Further, a dyeing treatment may be performed if necessary.
  • a disperse dye can be used as the dye, but a dye having a weather resistance of 5th grade or higher is preferable because discoloration and fading are less likely to occur when a makeup brush is used.
  • the dye may be used in combination with a known dyeing carrier, but high-pressure dyeing that does not require a dyeing carrier is preferable.
  • carbon black or various pigments may be added to the raw material for producing the monofilament. In this case, not only the dye at the time of dyeing can be saved, but also dyeing is not necessary depending on the application, which is preferable.
  • the hair material aggregate for a decorative brush of the present invention is a mixed aggregate of S-twisted and Z-twisted hair materials for a decorative brush.
  • a makeup brush is made by using a hair material aggregate for a makeup brush in which S-twisted and Z-twisted hair materials for a makeup brush are mixed, the flow of the hair material at the tip of the coating portion becomes random, and powdery or liquid cosmetics. It is preferable that the amount of collection and the amount of retention are uniform.
  • the makeup brush may be twisted in a certain direction and the applied part may have a habit, but the mixture of S-twisted and Z-twisted brushes makes it difficult for the makeup brush to have a habit. Durability is further improved and is suitable.
  • the hair material for an S-twisted decorative brush and the hair material for a Z-twisted decorative brush are mixed in a ratio of 4: 6 to 6: 4.
  • the hair material aggregate for a decorative brush mixed in a ratio of 4: 6 to 6: 4 for the application portion of the makeup brush the internal voids are increased to form a three-dimensional coating portion, which is natural. It is more similar to the application tool using animal hair, and powder or liquid cosmetics can be applied evenly. Further, it is preferable that the hair material for S-twisted decorative brush and the hair material for Z-twisted decorative brush are mixed almost uniformly.
  • This "almost uniformly mixed” means that the S-twisted decorative brush hair material and the Z-twisted decorative brush hair material are not solidified and localized, but are dispersed.
  • the Z-twisted makeup brush hair material is placed next to the S-twisted makeup brush hair material, and conversely, the S-twisted makeup brush hair material is next to the Z-twisted makeup brush hair material.
  • it refers to a state in which S-twisted hair materials for makeup brushes and Z-twisted hair materials for makeup brushes are arranged almost alternately over almost the entire application portion of the makeup brushes.
  • the application portion of the makeup brush in which the hair material for the S-twisted makeup brush and the hair material for the Z-twisted makeup brush are mixed almost uniformly, has hair of 0.3 g / cm 3 to 0.5 g / cm 3 .
  • the density is preferred. If the hair density of the application part of the makeup brush is within the above range, the application part has a three-dimensional effect, and the tip part of the application part expands to give a voluminous feeling, which is similar to an application tool using natural animal hair. It is suitable for applying powdered or liquid cosmetics.
  • the hair material for a makeup brush or the hair material aggregate for a makeup brush of the present invention is applied to at least a part of the entire hair material for a makeup brush, preferably 10% by weight or more, more preferably 20% by weight or more, still more preferably 25% by weight. % Or more, particularly preferably 30% by weight or more, is put into a jar for forming brush tips, and the tip portion having a raised central portion is formed according to the internal shape of the jar while applying vibration, and then molded. The tip of the tip is inserted into the cylindrical mouthpiece provided at the tip of the handle of the makeup brush to make a makeup brush.
  • the makeup brush of the present invention is suitable for uniformly applying powdery or liquid cosmetics, and various makeup brushes such as liquid brush, lip brush, nail care brush, foundation brush, powder brush, shadow brush, blusher brush. , Can be used as a highlight brush or concealer brush. Above all, it is particularly suitable for the usage of applying powdered cosmetics while spreading it thinly on the skin surface, so-called blurring, and using such application methods frequently, such as face brushes, blusher brushes, highlight brushes or Demonstrates excellent performance when used as a shadow brush for eye shadows and the like.
  • Example 1 (makeup brush 1) Core-sheath composite fiber with eyebrows-shaped cross section (core component: polybutylene terephthalate, sheath component: polytrimethylene terephthalate, fineness of 80 decitex) x 60, 80 T / m (twist / m) with a twister
  • the number of twists in the S-shape (S-twist) and the number in the Z-shape (Z-twist) are each treated at 185 ° C. for 5 minutes to prevent twisting, and the wavelength width is 11 mm. Aggregates of hair materials for S-twisted and Z-twisted decorative brushes were obtained.
  • the S-twist and Z-twist of the hair material aggregate for the decorative brush were aligned while mixing at a ratio of 1: 1 to prepare a fiber bundle having a diameter of 4 cm, and the paper was wrapped and protected. This fiber bundle was cut to a length of 8 cm to obtain a roller having a diameter of 4 cm and a length of 8 cm. Further, an aqueous solution of 100 g / L of sodium hydroxide and 6 g / L of a quaternary amine (manufactured by Yuki Kogyo Co., Ltd., trade name "DYK-1125”) was prepared, and the tapered fiber bundle was dyed and then twisted. Was combed with a comb to give vibration to a concave jar with the tips of the hair facing down to prepare a cosmetic brush 1 having a straightened hair shape.
  • Example 2 (makeup brush 2)
  • core component polybutylene terephthalate
  • sheath component polytrimethylene terephthalate + polybutylene terephthalate, fineness 80 decitex
  • twisting machine with 80 T / m (twist / m) twisted in the S-shaped direction (S-twisted) and the Z-shaped twisted machine (Z-twisted) were used. Brush 2 was created.
  • Example 3 makeup brush 3)
  • 60 core-sheath composite fibers core component: polyethylene terephthalate elastomer, sheath component: polytrimethylene terephthalate, fineness of 80 decitex
  • core component polyethylene terephthalate elastomer
  • sheath component polytrimethylene terephthalate, fineness of 80 decitex
  • Example 4 (makeup brush 4)
  • the decorative brush 4 was prepared in the same manner except that the fibers produced in Example 1 and the untwisted fibers of Example 1 were mixed at a ratio of 1: 1.
  • Example 5 (makeup brush 5)
  • the decorative brush 5 was prepared in the same manner except that the fibers produced in Example 2 and the untwisted fibers of Example 2 were mixed at a ratio of 1: 1.
  • Example 6 (makeup brush 6)
  • the decorative brush 6 was prepared in the same manner except that the fibers produced in Example 3 and the untwisted fibers of Example 3 were mixed at a ratio of 1: 1.
  • Comparative Example 1 (Comparative Example Makeup Brush 1) Twisting 60 core-sheath composite fibers (core component: polyethylene terephthalate elastomer, sheath component: polytrimethylene terephthalate, fineness 100 decitex) x 60 having a circular cross-sectional shape at 80 T / m (twist / m) with a twisting machine. Comparative Example Cosmetic Brush 1 was prepared in the same manner as in Example 1 except that the number was put in the S-shape (S-twist) and the number was put in the Z-shape (Z-twist).
  • S-twist S-shape
  • Z-twist Z-twist
  • Comparative Example 2 (Comparative Example Makeup Brush 2) A core-sheath composite fiber (core component: polyethylene terephthalate elastomer, sheath component: polytrimethylene terephthalate, fineness of 80 decitex) x 60 having a circular cross-sectional shape is twisted at 80 T / m (twist / m) with a twisting machine. Comparative Example Cosmetic Brush 2 was prepared in the same manner as in Example 1 except that the number was put in the S-shape (S-twist) and the number was put in the Z-shape (Z-twist).
  • S-twist S-shape
  • Z-twist Z-twist
  • Comparative Example 3 (Comparative Example Makeup Brush 3) Core-sheath composite fiber with a circular cross-sectional shape (core component: polyethylene terephthalate elastomer, sheath component: polybutylene terephthalate, fineness of 80 decitex) x 60, twisted at 80 T / m (twist / m) with a twister Comparative Example Cosmetic Brush 3 was prepared in the same manner as in Example 1 except that the brush 3 in the S-shaped direction (S-twisted) and the brush in the Z-shaped direction (Z-twisted) were used.
  • Comparative Example 4 (Comparative Example Makeup Brush 4) Core-sheath composite fiber with a circular cross-sectional shape (core component: polyethylene terephthalate elastomer, sheath component: polybutylene terephthalate + polytrimethylene terephthalate, fineness 80 decitex) x 60, 80 T / m (twist / twist /) with a twister Comparative Example Cosmetic Brush 4 was prepared in the same manner as in Example 1 except that the number of twists of m) was put in the S-shaped direction (S-twist) and the one put in the Z-shaped direction (Z-twist) was used. ..
  • Comparative Examples 5 to 7 Comparative Examples Makeup Brush 5 to 7
  • Comparative Examples Cosmetic Brushes 5 to 7 were prepared in the same manner except that those of Comparative Examples 2 to 4 having a fineness of 60 decitex were used.
  • the powder catching property (impregnation) of powdered cosmetics can be checked by the surface tester (manufactured by Trinity Lab Co., Ltd.). Name: Trilabo Handy Love Tester Type: TL701) was used for evaluation. (Test method) A circular container (diameter: 5.5 cm) filled with powdered cosmetics was attached with double-sided tape substantially vertically to the contacts of the surface tester.
  • each test sample was attached to a rotary table so that the tip of the makeup brush, which was the test sample, was in contact with the surface of the powdered cosmetic at a substantially right angle, and fixed so as to be horizontal to the test table. Sweep the tip of the makeup brush 10 times against the surface of the powdered cosmetic (speed: 6 rpm, turning radius: 100 mm, rotation angle: 90 degrees), and pick up the powdered cosmetic on the tip of the makeup brush. I let you.
  • the powder catchability of each test sample was measured by measuring the weight of the cosmetic brush before and after the end of the test, and the weight difference was evaluated as the powder catch amount (hereinafter referred to as "contained amount") 10 times.
  • the makeup brushes 1 to 6 made of the hair material for the makeup brush of the present invention have a powder catch amount of about 1.1 to 1.6 as compared with the commercially available goat hair makeup brush. It was confirmed that the number was doubled. Further, it was confirmed that the powder catch amount was about 1.2 to 2.2 times larger than that of the comparative example brushes 1 to 7 made of the core-sheath composite monofilament having a circular cross-sectional shape.
  • the hair material for a decorative brush of the present invention exerts a synergistic effect by combining three specific three-dimensional shapes of twist, a specific cross-sectional shape, and a core-sheath structure, and is a decorative brush having excellent powder catching property (impregnation). It became clear from this evaluation result that it was obtained.
  • a and B of the following evaluation criteria have no practical problem as a makeup brush, and C and D have a practical problem as a makeup brush.
  • a and B of the following evaluation criteria have no practical problem as a makeup brush, and C and D have a practical problem as a makeup brush.
  • a and B of the following evaluation criteria have no practical problem as a makeup brush, and C and D have a practical problem as a makeup brush.
  • a and B of the following evaluation criteria have no practical problem as a makeup brush
  • C and D have a practical problem as a makeup brush.
  • B Color development: Equivalent to animal hair makeup brush, and the spread range is narrower than A, but it is in a uniform application state.
  • C Color development: Weaker than animal hair makeup brush, spread is equivalent to B.
  • D Color development: Weaker than animal hair makeup brush, and the spread range is narrower than B.
  • the makeup brushes 1 to 6 made of the hair material for the makeup brush of the present invention are makeup brushes having no practical problem in color development and spreadability.
  • Comparative Example Brushes 1 to 7 made of a core-sheath composite monofilament having a circular cross-sectional shape are cosmetic brushes having practical problems in color development and spreadability.
  • evaluation criteria 1: It moves flexibly on the skin surface, and the whole follows the skin surface and has good tactile sensation. The tactile sensation is slightly inferior to 2: 1, but there is no problem in practical use. 3: It lacks moderate tension and flexibility, and there is a feeling of variation in the hair bundles, and the tactile sensation is poor.
  • Comparative Example Brushes 1 to 7 made of a core-sheath composite monofilament having a circular cross-sectional shape are cosmetic brushes having poor tactile sensation and having a practical problem.
  • Test method Each test sample was attached to a rotary table and fixed so as to be horizontal to the test table so that the tip of the cosmetic brush, which is the test sample, was in contact with the surface of the contact of the surface tester at a substantially right angle. .. Move the tip of the makeup brush horizontally with respect to the surface of the contactor of the surface tester (speed: 6 rpm, rotation angle: 90 degrees), and set the maximum value of the force applied in the vertical and horizontal directions at that time. I measured it.
  • the vertical measurement value is the force that the bristles of the makeup brush try to recover
  • the horizontal measurement value is the force that pushes the contactor, which is an index that indicates the softness of the makeup brush. Evaluated as. The measurement was performed three times, and the average values are summarized in Table 1 and FIG. 4 below.
  • the decorative brushes 1 to 6 made of the hair material for a decorative brush of the present invention are compared with the comparative example brushes 1 to 7 made of a core-sheath composite monofilament having a circular cross-sectional shape. , It became clear that it is a makeup brush that has both elasticity and softness.
  • Table 1 summarizes the evaluation results of the above-mentioned "evaluation 1 to 4 of the use performance of the makeup brush".
  • PBT polybutylene terephthalate
  • PTT polytrimethylene terephthalate
  • PET polyethylene terephthalate
  • the hair material for a decorative brush of the present invention has three specific three-dimensional shapes: a twist, that is, an S twist or a Z twist, and a specific cross-sectional shape of an eyebrows shape and a core sheath structure.
  • a twist that is, an S twist or a Z twist
  • a specific cross-sectional shape of an eyebrows shape and a core sheath structure By having a two-layer structure consisting of a core and a sheath made of different materials, the balance between softness and repulsive force is improved, and natural animal hair is also made to have excellent softness and elasticity to the skin. It can be similar to or better than the makeup brush used.
  • the combination of the three unique three-dimensional shapes exerts an effect more than the additive effect, and realizes better performance than natural animal hair in catch and release property for powdery or liquid cosmetics. Further, by providing the tapered details, it is useful because it can be used as a hair material for a cosmetic brush having a tactile sensation comparable to that of natural animal hair and having

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)
  • Multicomponent Fibers (AREA)
PCT/JP2021/025894 2020-08-07 2021-07-09 化粧ブラシ用毛材、その毛材を用いた化粧ブラシ WO2022030180A1 (ja)

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KR1020227045876A KR20230019143A (ko) 2020-08-07 2021-07-09 화장 브러시용 모재, 그 모재를 사용한 화장 브러시
JP2022541175A JP7514488B2 (ja) 2020-08-07 2021-07-09 化粧ブラシ用毛材、その毛材を用いた化粧ブラシ
CN202180042051.9A CN115697136A (zh) 2020-08-07 2021-07-09 化妆刷用毛材及使用该毛材的化妆刷
US18/003,135 US20230232977A1 (en) 2020-08-07 2021-07-09 Makeup brush bristle material and makeup brush using said bristle material
EP21853436.0A EP4193874A4 (en) 2020-08-07 2021-07-09 BRISTLE MATERIAL FOR COSMETIC BRUSH AND COSMETIC BRUSH WITH THIS BRISTLE MATERIAL

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JP2003245133A (ja) 2002-02-22 2003-09-02 Toray Monofilament Co Ltd ブラシ用毛材およびその用途
JP2009201794A (ja) 2008-02-28 2009-09-10 Toray Monofilament Co Ltd ブラシ用毛材、その製造方法およびブラシ
JP2010194149A (ja) * 2009-02-26 2010-09-09 Toray Monofilament Co Ltd 化粧ブラシ用毛材および化粧ブラシ
WO2019111868A1 (ja) * 2017-12-05 2019-06-13 株式会社タイキ 化粧ブラシ用毛材、その毛材を用いた化粧ブラシ
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JPS57133220A (en) * 1981-02-09 1982-08-17 Asahi Chem Ind Co Ltd Composite fiber having animal hair-like tapered sharp end and its preparation
JP2003245133A (ja) 2002-02-22 2003-09-02 Toray Monofilament Co Ltd ブラシ用毛材およびその用途
JP2009201794A (ja) 2008-02-28 2009-09-10 Toray Monofilament Co Ltd ブラシ用毛材、その製造方法およびブラシ
JP2010194149A (ja) * 2009-02-26 2010-09-09 Toray Monofilament Co Ltd 化粧ブラシ用毛材および化粧ブラシ
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KR20230019143A (ko) 2023-02-07
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US20230232977A1 (en) 2023-07-27

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