CN111447858A - Hair material for cosmetic brush and cosmetic brush using the same - Google Patents
Hair material for cosmetic brush and cosmetic brush using the same Download PDFInfo
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- CN111447858A CN111447858A CN201880078006.7A CN201880078006A CN111447858A CN 111447858 A CN111447858 A CN 111447858A CN 201880078006 A CN201880078006 A CN 201880078006A CN 111447858 A CN111447858 A CN 111447858A
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- cosmetic brush
- cosmetic
- brush
- hair
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- 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
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- 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
- A46D1/0238—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
- A46D1/0269—Monofilament bristles
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/02—Bristles details
- A46D1/0276—Bristles having pointed ends
-
- 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
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- 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
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
-
- 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
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- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
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- 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
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- 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
- D10B2509/00—Medical; Hygiene
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Brushes (AREA)
Abstract
The invention provides a hair material for a cosmetic brush, a hair material assembly for a cosmetic brush and a cosmetic brush using the same, wherein the hair material is good in the adhesion and release of a powdery or liquid cosmetic material and is made of a synthetic resin. The present invention provides a bristle material for a cosmetic brush, comprising S-twisted or Z-twisted synthetic resin monofilaments, wherein the monofilaments have a cocoon-shaped cross section in a direction perpendicular to the fiber axis.
Description
Technical Field
The invention relates to a hair material for a cosmetic brush, a hair material assembly for a cosmetic brush, and a cosmetic brush.
Background
Conventionally, natural animal hair such as squirrel hair, horse hair, goat hair, and the like has been used as a hair material for cosmetic brushes. Natural animal hair is said to be excellent in the containing property or the releasing property of liquid or powder cosmetics, and is said to be excellent in the feeling of use such as the touch of the skin due to the hardness and softness of the hair, and is therefore frequently used. In particular, a squirrel hair cosmetic brush or a goat hair cosmetic brush is highly evaluated from consumers as the highest-grade animal hair cosmetic brush. However, although natural animal hair has many advantages, it is a natural resource, and there is a limit in supply amount, and it is gradually difficult to obtain it from the viewpoint of animal cares, global ecological protection, and the like. In recent years, as an alternative to natural animal hair, a hair material for a cosmetic brush made of synthetic fibers has been proposed.
For example, patent document 1 proposes a brush hair material such as a cosmetic brush that contains polypropylene terephthalate as a main component and exhibits a specific bending recovery rate. Specifically disclosed are the following: a brush hair material made of only polytrimethylene terephthalate has excellent durability even when the tip end thereof is tapered compared to a brush hair material made of only polybutylene terephthalate, and is also a soft and light material having flexibility compared to a conventional brush hair material (see patent document 1).
Patent document 2 proposes a cosmetic brush hair material which is composed of a core-sheath structure composite monofilament and has a tapered portion formed at one end thereof. Specifically disclosed are the following: this hair material is suitable for cosmetic brush applications, which combines excellent application performance to liquid cosmetics and a feeling of use comparable to natural animal hair, by making the cross-sectional shape of the tapered portion circular in cross section and making the cross-sectional shape of the body portion other than the tapered portion octagonal in cross section (see patent document 2).
Prior patent literature
Patent document
Patent document 1: japanese patent laid-open publication No. 2003-245431
Patent document 2: japanese laid-open patent publication No. 2009-201794
Disclosure of Invention
Since natural animal hair is slightly curled and the tip of the application part is in an open state in a state where the hair is bound, it is particularly suitable for applying a powdery cosmetic material such as blush or eye shadow in a tinged state. On the other hand, it is known that a brush hair material made of synthetic fibers is suitable for applying a solid, paste-like or liquid cosmetic material such as eye drops or lipstick since the synthetic fibers themselves are linear and the tip of the application portion is straight without spreading when the hairs are bound.
Accordingly, an object of the present invention is to provide a hair material for a cosmetic brush, a hair material assembly for a cosmetic brush, and a cosmetic brush using the same, which are suitable for application of a powdery cosmetic material and a liquid cosmetic material, respectively, and more particularly, which have good adhesion and release properties with respect to a powdery or liquid cosmetic material and are made of a synthetic resin.
The present inventors have conducted extensive studies to solve the above problems, and as a result, have found that a synthetic resin brush hair material having S-twist or Z-twist with a specific cross-sectional shape is extremely excellent in the properties of gripping and releasing a powdery or liquid cosmetic material, and have solved the above problems.
The present invention is specifically summarized in the following items.
1. A bristle material for a cosmetic brush, comprising S-twisted or Z-twisted synthetic resin monofilaments, wherein the monofilaments have a cocoon-shaped cross section in a direction perpendicular to the fiber axis.
2. The bristle material for a cosmetic brush according to claim 1, wherein the monofilament has a tapered portion at the tip thereof.
3. The bristle material for a cosmetic brush according to claim 2, wherein the tapered portion has a bifurcated tip.
4. The cosmetic-brush hair material according to any one of claims 1 to 3, wherein the synthetic resin is a polyester resin.
5. The cosmetic brush hair material according to claim 4, wherein the polyester-based resin is 1 or 2 or more selected from the group consisting of polytrimethylene terephthalate, polyethylene terephthalate and polybutylene terephthalate.
6. A bristle material assembly for a cosmetic brush is characterized by being composed of a mixed assembly of S-twisted and Z-twisted synthetic resin monofilaments, and the monofilaments have a cocoon-shaped cross section in a direction perpendicular to the fiber axis.
7. A cosmetic brush characterized by using at least a part of the cosmetic-brush hair material according to any one of 1 to 5 or 6.
The hair material for a cosmetic brush of the present invention has 2 specific three-dimensional shapes, i.e., twisted and specific cross-sectional shapes, and therefore, exhibits an additive effect by combining various three-dimensional shapes, and achieves superior performance to natural animal hair in terms of adhesion and releasability to a powdery or liquid cosmetic material. Further, by providing the tapered tip portion, a hair material for a cosmetic brush having both the touch and softness of the skin comparable to natural animal hair can be produced.
Drawings
Fig. 1 is a schematic cross-sectional view of a cocoon-shaped cosmetic brush hair material according to the present invention.
FIG. 2 is a schematic cross-sectional view showing 1 example of cocoon-shaped form of the present invention.
FIGS. 3(A) to (C) are schematic cross-sectional views not included in the present invention.
FIG. 4 is an optical micrograph (150 magnifications) of a cosmetic brush hair material of the present invention.
FIG. 5 is an optical micrograph (100 times) of a cosmetic brush hair material of the present invention whose tip taper portion is bifurcated.
FIG. 6 shows the evaluation 1 of the usability of the cosmetic brush in the example: evaluation of powder gripping Property "evaluation test results.
FIG. 7 shows the evaluation of the usability of the cosmetic brush 2 in the example: evaluation of powder Release "is a graph of the evaluation test results.
Detailed Description
The present invention relates to a bristle material for a cosmetic brush, a bristle material assembly for a cosmetic brush, and a cosmetic brush, each of which is composed of S-twisted or Z-twisted synthetic resin monofilaments, and each of which has a cocoon-shaped cross section in a direction perpendicular to a fiber axis.
The present invention will be described in detail below.
The bristle material for a cosmetic brush of the present invention is composed of synthetic resin monofilaments having a twisted structure of S-twist or Z-twist. That is, any spiral structure having "S-twist batt material (right twist)" or "Z-twist batt material (left twist)" has a three-dimensional spread in a direction perpendicular to the spiral axis, unlike straight fibers or wavy fibers.
The volume occupied by the hair materials 1 having the helical structure by the twist is larger than that of the hair materials having the planar zigzag structure formed by the gear press-fitting method, and the makeup brush hair material assembly or the makeup brush comprising the makeup brush hair materials of the present invention can be an article having a high fluffy feeling by suppressing overlapping or adhesion of the hair materials even in a static state and containing a large number of voids in the interior. Further, when the S twist and the Z twist are combined, the inner void portion becomes more and the stereoscopic impression can be improved, so that it is preferable.
In the case of the cosmetic brush hair material assembly or the cosmetic brush of the present invention, both the S twist and the Z twist are preferably set in a range of 30T/m (Turn/m) to 100T/m (Turn/m) or less, more preferably 40T/m (Turn/m) to 90T/m (Turn/m) in order to form a gap portion between adjacent hair materials for retaining the powdery or liquid cosmetic material. If the number of twists is within the above range, a helical structure can be imparted to the fiber in the longitudinal direction with a wavelength width exceeding 10mm and 35mm or less.
In general, although heavy twist should be made for shortening the wavelength width in order to make monofilaments have a three-dimensional appearance, the wavelength width is made longer by decreasing the number of twists (weak twist) in the cosmetic-brush hair material of the present invention. By reducing the number of twists in this way, it is possible to obtain a brush hair material having a more three-dimensional appearance, and at the same time, after twisting several monofilaments together, it is possible to easily open the fibers by carding, thereby achieving an effect of improving the manufacturing efficiency. In addition, when the twist is heavy, the hardness of the hair material is hard and the texture of the skin is also likely to be deteriorated.
On the other hand, when the wavelength width exceeds 35mm, the degree of twist becomes light and the hair materials approach a straight line, so that the three-dimensional spread of the hair materials is reduced, and the gaps between the hair materials are reduced, whereby the amount of the powder or liquid cosmetic to be collected or held is liable to be reduced. Further, when the wavelength width is less than 10mm, the hair materials become easily entangled with each other, and the manufacturing efficiency is lowered. The wavelength width of the hair material for a cosmetic brush of the present invention is preferably in the range of 11mm to 25mm, and more preferably 12mm to 20 mm.
The bristle material for a cosmetic brush of the present invention is a bristle material in which a cross section of a synthetic resin monofilament of S-twist or Z-twist in a direction perpendicular to a fiber axis is cocoon-shaped.
The sectional shape of the hair material for a cosmetic brush according to the present invention will be described with reference to fig. 1 to 3. FIGS. 1 and 2 are schematic sectional views of the hair material for a cosmetic brush according to the present invention. FIGS. 3(A) to (C) are schematic cross-sectional views not included in the present invention.
The cocoon-shaped form in the present invention is a cylindrical form which is long like a cocoon made of a silkworm and has a gently tapered portion in a central portion (trunk portion) as shown in fig. 1, and does not include a cross-sectional form in which the central portion (trunk portion) does not have the intermediate tapered portion as shown in fig. 3 a. The cocoon-shaped form of the present invention includes a form having a large intermediate tapered portion in the central portion (torso portion) as shown in fig. 2, but does not include a form having an intermediate tapered portion as in the acute-angled groove form as shown in fig. 3(B) and (C).
The cocoon-shaped form in the present invention is characterized in that, as shown in fig. 1 and 2, the "angle" formed by two tangent lines (broken lines) along the gentle intermediate tapered portion with the center portion of the intermediate tapered portion as a base point is greater than 90 degrees and smaller than 180 degrees. In the cocoon-shaped form of the present invention, the "angle" is preferably 100 degrees or more, more preferably 120 degrees or more, and further preferably 130 degrees or more. As shown in fig. 3(B), the form not included in the present invention is that, taking the central portion of the intermediate tapered portion as a base point, an "angle" formed by two tangent lines (dashed lines) along the intermediate tapered portion is smaller than 90 degrees, which constitutes an acute-angled longitudinal groove.
The present inventors have confirmed that when the makeup brush hair material has longitudinal grooves in the longitudinal direction of the fibers, the gripping property (inclusivity) with respect to the powdery or liquid makeup material is improved. However, the present inventors have found that when the longitudinal grooves are grooves having an acute angle (within 90 °), the powdery or liquid cosmetic contained in the hair material for a cosmetic brush is retained in the longitudinal grooves, and the releasability (dischargeability) is lowered. That is, the present inventors have found that the cosmetic brush hair material of the present invention exhibits excellent properties of gripping and releasing, particularly releasing (discharging) properties, with respect to a powdery or liquid cosmetic material by forming the cross section of the cosmetic brush hair material into a cocoon-shaped form having a gentle streamline shape, that is, a tapered portion formed by an angle of more than 90 degrees and less than 180 degrees.
The sectional shape of the hair material for a cosmetic brush according to the present invention will be described in further detail with reference to fig. 1.
In fig. 1, a denotes the major axis (hereinafter referred to as major axis a), b denotes the depression width (hereinafter referred to as depression width b), c denotes the minor axis (hereinafter referred to as minor axis c), and d denotes the depression diameter (hereinafter referred to as depression diameter d) of the cosmetic brush hair material of the present invention.
In the hair material for a cosmetic brush of the present invention, the major axis a is in the range of 100 to 200 μm, preferably 110 to 170 μm, and more preferably 120 to 160 μm. The width b of the recess is within a range of 50% to 75% of the major axis a, the minor axis c is within a range of 10 μm to 100 μm, and the diameter d of the recess is within a range of 40% to 90% of the minor axis c. The aspect ratio (a/d) between the major axis a and the depression diameter d is in the range of 1.1 to 8.0, preferably 2.0 to 7.8. The aspect ratio (c/d) between the minor axis c and the depression diameter d is in the range of 1.1 to 3.0, preferably 1.1 to 2.5.
When the major axis a, the depression width b, the minor axis c, and the depression diameter d are within the above ranges, excellent performance is exhibited in terms of adhesion and releasability to the powdery or liquid cosmetic.
The bristle material for a cosmetic brush of the present invention has a twisted structure of S-twist or Z-twist, and the cross section thereof is cocoon-shaped, and the combination of these 2 specific three-dimensional shapes exerts an additive effect, and exhibits extremely excellent initial releasability in terms of adhesion and releasability to a powdery or liquid cosmetic material, particularly in terms of releasability (releasability) to a powdery or liquid cosmetic material. Although the details will be described in examples below, the hair material for a cosmetic brush according to the present invention has an excellent performance of having a grip (inclusivity) about 1.3 to 1.8 times higher than that of a cosmetic brush of goat hair, which is a top-grade product of a cosmetic brush of animal hair and is highly evaluated by consumers. Further, the cosmetic brush has excellent properties such that the initial release property (release property) is about 1.2 times higher than that of a cosmetic brush made of goat hair in terms of the release property (release property) of a powdery or liquid cosmetic. The effect of the makeup brush hair material of the present invention on the ability to capture and release a powdery or liquid cosmetic material, i.e., the ability to contain and release both, is an extremely significant effect that the present inventors have previously identified.
The bristle material for a cosmetic brush of the present invention is composed of synthetic resin monofilaments. As the synthetic resin, 1 or 2 or more kinds of synthetic resins such as polyamide resin, polyolefin resin, polyacrylonitrile resin, polyester resin, etc. can be selected or used in combination, and among them, polyester resin is preferable as the bristle material for cosmetic brush because of its appropriate rigidity and durability, and its excellence in extrusion, twisting, tapering, etc. Among them, 1 or 2 or more selected from polyester resins such as polytrimethylene terephthalate, polyethylene terephthalate, polybutylene terephthalate, and polylactic acid are preferable. More preferably, the thermoplastic elastomer composition has 1 or 2 or more kinds selected from the group consisting of polytrimethylene terephthalate (PTT), polyethylene terephthalate (PET), and polybutylene terephthalate (PBT) in terms of having appropriate flexibility and elasticity. The synthetic resin monofilament of the present invention may contain conventional additives such as a heat-resistant agent, a weather-resistant agent, a plasticizer, and a coloring agent as long as the object of the present invention is not impaired.
The cosmetic brush of the present invention is characterized by using the hair material for a cosmetic brush of the present invention or the hair material assembly for a cosmetic brush of the present invention at least in part. More specifically, the cosmetic brush of the present invention preferably contains the hair material for a cosmetic brush of the present invention or the aggregate of the hair materials for a cosmetic brush of the present invention in an amount of 10 wt% or more of the total hair materials for a cosmetic brush, more preferably 20 wt% or more, still more preferably 25 wt% or more, and particularly preferably 30 wt% or more.
The cosmetic brush of the present invention contains the cosmetic brush hair material of the present invention or the cosmetic brush hair material assembly of the present invention in an amount of 10 wt% to 100 wt% of the total cosmetic brush hair material, and thus can exhibit superior performance in terms of attachment and release to and from a powdery or liquid cosmetic material as compared with a cosmetic brush using natural animal hair, and can be manufactured into an article similar to a cosmetic brush using natural animal hair in terms of skin touch and flexibility. In particular, the cosmetic brush of the present invention containing the cosmetic brush hair material of the present invention or the cosmetic brush hair material assembly of the present invention in an amount of 30% by weight or more based on the total cosmetic brush hair material can sufficiently exhibit the effects of the present invention.
The cosmetic brush of the present invention may use a cosmetic brush hair material made of synthetic fibers such as nylon fibers or polyester fibers, in addition to the cosmetic brush hair material of the present invention or the cosmetic brush hair material assembly of the present invention.
In the cosmetic brush of the present invention, the distal end of the synthetic resin monofilament is preferably formed to have a tapered portion. Further, the tapered portion is preferably formed into a forked shape. By processing the distal end portion in this manner, the feeling of the skin is improved when the cosmetic is applied, and an excellent feeling closer to natural animal hair can be obtained.
Method for producing hair material for cosmetic brush
Next, 1 example of the method for producing a hair material for a cosmetic brush according to the present invention will be described.
The method for manufacturing the monofilament made of synthetic resin of the hair material for the cosmetic brush comprises the following steps: synthetic resin pellets or powder such as polyester resin and additives as required are mixed and stirred to be uniformly dispersed, and then supplied to a hopper of an extrusion spinning machine, and the synthetic resin mixture melted by heating is extruded from a cocoon-shaped nozzle corresponding to the cross-sectional shape of the wool material of the present invention, and spun through a spinning port and stretched by 4 to 5 times by 3 stages of heating and stretching, thereby producing synthetic resin monofilaments having a cocoon-shaped cross-section.
After twisting the synthetic resin monofilaments by the above-mentioned number of twists, the twisted synthetic resin monofilaments are heated at a temperature not higher than the melting point of the synthetic resin and heat-set. The time for heat-setting is about 5 minutes based on the temperature, for example, 185 ℃. This fixes the twisted structure and stabilizes the shape without being affected by the use environment. The heat-set synthetic resin monofilament is cut into a predetermined length, for example, a length of 25mm or more, preferably 50mm or more and 100mm or less.
The cut synthetic resin monofilament may have a tapered tip portion formed at the tip thereof as required. For this purpose, a catalyst for promoting hydrolysis is added to a strong alkaline solution (e.g., an aqueous sodium hydroxide solution) and the resultant filaments are immersed under a constant temperature condition from the tip to the center of the cut synthetic resin monofilaments. After the dipping for a predetermined time, the synthetic resin monofilament was pulled up to taper the tip end thereof, thereby forming a tapered tip end taper portion. The synthetic resin monofilament obtained by this method is a monofilament having a substantially beautiful tapered portion at the tip. Further, by appropriately setting the dipping time, the thinned part of the cocoon-shaped cross section of the synthetic resin monofilament is dissolved, and a sharpened bristle material for a cosmetic brush having a tapered tip part with 2 branches can be obtained. This method is preferable because a cosmetic brush hair material with a tapered portion at the tip end can be easily formed. The length of the taper portion at the top end can be set to be in the range of 1-30 mm according to the purpose of use, and the length of the bifurcated portion can be set to be in the range of 0.1-20 mm.
Subsequently, the fiber bundle of the synthetic resin monofilament was washed with water and dried. Then, a fiber bundle obtained by combing and twisting a fiber bundle of synthetic resin monofilaments was used as 1 cosmetic brush hair material.
The bristle material for cosmetic brushes thus obtained had a cocoon-shaped cross section of the monofilament in a direction perpendicular to the fiber axis, and a twist mark after heat setting remained, and had a specific cross-sectional shape and a helical structure, as shown in fig. 4. Further, by the alkali treatment, a cosmetic brush hair material having a tapered portion as shown in FIG. 5 can be obtained.
Further, dyeing treatment may be performed as necessary. Disperse dyes can be used as the dye, but a substance having weather fastness of 5 or more is preferable because discoloration and fading are less when the cosmetic brush is used. Further, the dye may be used in combination with a known dyeing vehicle, but is preferably high-pressure dyeing which does not require a dyeing vehicle. Carbon black, various pigments, and the like may be added to the raw materials for producing monofilaments. In this case, it is preferable not only to save the dye used for dyeing, but also to eliminate the need for dyeing depending on the application.
< aggregate of hair materials for cosmetic brush >
The aggregate of the hair materials for the cosmetic brush of the present invention is a mixed aggregate of S-twist and Z-twist hair materials for the cosmetic brush. When a cosmetic brush is produced using a cosmetic brush hair material assembly in which cosmetic brush hair materials of S twist and Z twist are mixed, the hair materials at the tip of the application part are oriented randomly, and the amount of the powder or liquid cosmetic material to be collected or held is preferably uniform. The cosmetic brush may be twisted in a certain direction depending on the use method or the use habit of the user to form a mark on the application portion, and the mixing of the S-twisted and Z-twisted hair materials is preferable because the mark is not easily formed and the durability of the cosmetic brush is further improved.
In the cosmetic-brush hair material assembly of the present invention, the S-twisted cosmetic-brush hair material and the Z-twisted cosmetic-brush hair material are preferably mixed in a ratio of 4: 6-6: 4, mixing. By using a brush with a brush head having a brush head with a coating portion of 4: 6-6: 4 the hair material assembly for a cosmetic brush in which the mixture is mixed has more internal voids to form a three-dimensional coating part, and is an article closer to a coating tool using natural animal hair, and an article capable of uniformly coating a powdery or liquid cosmetic material. Further, the S-twisted cosmetic brush hair material and the Z-twisted cosmetic brush hair material are preferably mixed almost uniformly. The "substantially uniform mixing" means that the S-twisted cosmetic brush hair materials and the Z-twisted cosmetic brush hair materials are not individually gathered and localized, but are dispersed. For example, the above-described cosmetic brush is a state in which Z-twisted cosmetic brush hair materials are arranged at positions adjacent to S-twisted cosmetic brush hair materials, and conversely, S-twisted cosmetic brush hair materials are arranged at positions adjacent to Z-twisted cosmetic brush hair materials, and S-twisted cosmetic brush hair materials and Z-twisted cosmetic brush hair materials are arranged almost all over the application section of the cosmetic brush. Since the S-twisted makeup brush hair materials and the Z-twisted makeup brush hair materials are almost uniformly mixed, the adjacent makeup brush hair materials are prevented from being closely adhered and densely packed, and a gap portion is easily formed between the makeup brush hair materials, so that a makeup brush with a high bulky feeling can be formed.
Further, the coating portion of the cosmetic brush in which the S-twisted and Z-twisted cosmetic brush hair materials are almost uniformly mixed is preferably 0.3g/cm3～0.5g/cm3The wool density of (a). When the hair density of the applicator portion of the cosmetic brush is within the above range, the applicator portion has a three-dimensional feeling and the tip portion of the applicator portion is expanded to exhibit a voluminous feeling, and therefore, the cosmetic brush is an article similar to an applicator using natural animal hair and is suitable for applying a powdery or liquid cosmetic material.
Method for producing cosmetic brush
Description will be given of 1 example of a method for manufacturing a cosmetic brush using the hair material for a cosmetic brush or the hair material assembly for a cosmetic brush of the present invention obtained by the above-described manufacturing method and the like.
The brush tip forming device is configured such that a brush tip is formed by putting a brush material containing the brush material or the brush material aggregate of the present invention in at least a part of the entire brush material into a pot for forming a brush tip, wherein the brush material or the brush material aggregate of the present invention preferably accounts for 10 wt% or more, more preferably 20 wt% or more, further preferably 25 wt% or more, particularly preferably 30 wt% or more of the entire brush material, and then vibrating the pot to form a tip portion having a center portion protruding along the inner shape of the pot, and then inserting the formed tip portion into a cylindrical base provided in advance in a handle portion of a cosmetic brush.
The cosmetic brush of the present invention is preferably used for uniformly applying a powdery or liquid cosmetic material, and can be used for various cosmetic brushes, for example, a liquid brush, a lip brush, a nail brush, a foundation brush, a powder brush, a shadow brush, a blush brush, a highlight brush, a concealer brush, and the like. Among them, the powder cosmetic is particularly suitable for use in a method of applying the powder cosmetic to the skin surface while thinly pushing it away, that is, a cosmetic for halation, and exhibits excellent performance when used as a brush for face, blush, highlight, eye shadow and the like which are commonly used in this application method.
Examples
The present invention will be described below with reference to examples, but the technical scope of the present invention is not limited thereto.
Example of production of a Brush for cosmetic Brush and cosmetic Brush according to the invention
(cosmetic brush A)
× single fibers (corresponding to 156 μm long diameter a, 100 μm dent width b, 56 μm short diameter c, 25 μm dent diameter d) of polytrimethylene terephthalate having a cocoon-shaped cross section were twisted by a twister to obtain an aggregate of S-twisted and Z-twisted bristles having a twist number of 80T/m (Turn/m) added to the S-direction and Z-direction, and the twisting was stopped by steam treatment at 120 ℃ for 40 minutes to obtain an aggregate of S-twisted and Z-twisted bristles having a wavelength width of 11mm, then the S-twisted and Z-twisted bristles of the aggregate of cosmetic bristles were aligned at a ratio of 1: 1, a fiber bundle having a diameter of 4cm was prepared and protected by winding with paper, the fiber bundle was cut into a length of 8cm, a short rod having a diameter of 4cm and a length of 8cm was prepared, 100 g/L of sodium hydroxide was prepared on one side, a quaternary ammonium hydroxide fiber was further prepared, and a top end of the fiber bundle was treated with a dye solution of a brush (manufactured by a bar-brush, a bar-130 k, a brush having a brush tip end of a brush having a brush, a brush having a comb, a brush having.
(cosmetic brush B)
In the above-described example of manufacturing the "cosmetic brush a", the cosmetic brush B was manufactured in the same manner except that × 60 pieces of polytrimethylene terephthalate monofilaments (corresponding to a major diameter a of 126 μm, a depression width B of 76 μm, a minor diameter c of 54 μm, and a depression diameter d of 46 μm) having a cross-sectional shape of a cocoon shape were twisted by a twisting machine, and a twist (S twist) obtained by adding a twist number of 80T/m (Turn/m) to an S-direction and a twist (Z twist) obtained by adding a twist in a Z-direction were used.
Comparative example Brush
In the above-mentioned production example of the "cosmetic brush A", a comparative brush was produced in the same manner except that × 60 pieces of polytrimethylene terephthalate monofilament 75 μm (0.075 mm: equivalent to "fiber diameter") having a circular cross-sectional shape were used, and 80T/m (Turn/m) of twist number was added to S-direction twist (S-twist) and Z-direction twist (Z-twist) by a twisting machine.
Evaluation of cosmetic Brush usage Performance 1: evaluation of powder adherence >
A test for evaluating the powder-holding property (inclusiveness) of the cosmetic brush of the present invention was carried out. The powder-holding property (inclusivity) of the present invention is an index indicating the adhesion of powder to the powdery cosmetic material of the cosmetic brush.
(test specimen)
In addition to the cosmetic brush A, B and the brush of comparative example manufactured in the above-described manufacturing example, the Powder grip (inclusiveness) of a powdery cosmetic material (manufactured by shin corporation, Integrated Mineral Glow Press Powder) was evaluated by using a surface Tester (manufactured by Trinity L ab, trade name: Trilab Handy Rub Tester Type: T L701) of a commercially available cosmetic brush of goat hair (top grade of animal hair cosmetic brush) obtained from a consumer.
(test method)
A round container (diameter: 5.5cm) filled with the powdery cosmetic was attached to the contact of the surface texture tester with a double-sided adhesive tape. Each test sample is attached to a rotary table on the surface of the powdery cosmetic material so that the tip of a cosmetic brush as the test sample is in contact with the surface at a substantially right angle, and is fixed so as to be horizontal to the test table.
The tip of the cosmetic brush was swept 10 times (speed: 6rpm, radius of rotation: 100mm, angle of rotation: 90 degrees) against the surface of the powdery cosmetic material to grasp the powdery cosmetic material by the tip of the cosmetic brush.
The powder pick-up property of each test specimen was measured for the weight of the cosmetic brush before and after the completion of the test, and the difference in weight was evaluated as the powder pick-up amount (contained amount) 10 times.
In addition, the unused cosmetic brush was used as a test sample by sweeping the surface of the powdery cosmetic material 10 times according to the test method described above, then sweeping the cosmetic brush over a paper towel, and then discharging the cosmetic brush until the powdery cosmetic material was not adhered to the paper towel.
The test was performed 2 times, and the average value of each test sample was shown in fig. 6.
From the results of fig. 6, it was confirmed that the cosmetic brush A, B comprising the hair material for cosmetic brush of the present invention had a larger amount of powder attached by about 2.6 to 3.4 times as compared with the comparative example brush having a circular cross-sectional shape. Further, it was confirmed that the amount of powder attached was about 1.3 to 1.8 times larger than that of a commercially available cosmetic brush made of goat hair.
The evaluation results clearly show that: the hair material for a cosmetic brush of the present invention can be produced into a cosmetic brush having excellent powder-holding properties (inclusiveness) by exerting a synergistic effect by combining 2 specific three-dimensional shapes, i.e., a twisted shape and a specific cross-sectional shape.
Evaluation of cosmetic Brush usage Performance 2: evaluation of powder Release Property
A test for evaluating the powder releasing property (discharging property) of the cosmetic brush of the present invention was carried out. The powder releasability (dischargeability) of the present invention is an index indicating the powder discharge performance of the powdery cosmetic material from the cosmetic brush to the application surface.
(test specimen)
A cosmetic brush a and a commercially available goat hair (rough peak) were used in the same manner as in the above "evaluation of usability of cosmetic brush 1". Since cosmetic brushes made of goat hair (thick light peak) which is a raw material of soft raw hair with little wear from the neck to the chest contain a large amount of powdery cosmetic material and have good emission properties, they are highly evaluated by consumers as cosmetic brushes capable of being applied to fine parts such as eye shadows over a wide range of applications such as foundation and blush.
(preparation of evaluation test of powder Release)
Each test sample was attached to a rotary table so that the tip of each cosmetic brush as the test sample was in contact with the surface of a powdery cosmetic material (integrated mineral glow Presto Powder, manufactured by shinko corporation) horizontally fixed to the test stand, and was fixed so as to be perpendicular to the test stand.
The tip of each cosmetic brush was swept (speed: 6rpm, radius of rotation: 100mm, angle of rotation: 90 degrees) against the surface of the powdered cosmetic material, and about 0.01g of the powdered cosmetic material was captured by the tip of each cosmetic brush.
The cosmetic brush a of the present invention can collect 0.01g of the powdery cosmetic material by 5 times of sweeping, and the cosmetic brush of goat hair (thick peak) cannot collect 0.01g of the powdery cosmetic material unless it is swept 15 times.
From these results, it was also confirmed that the cosmetic brush a comprising the cosmetic brush hair material of the present invention has extremely superior gripping properties (inclusion properties) of the powdery cosmetic material as compared with the cosmetic brush of goat hair (matted peak).
(evaluation test of powder Release)
A cosmetic sponge was stuck to a cylinder table (diameter: 47mm) as a coated surface. Each test piece is attached and fixed to a jig on the surface of a cosmetic sponge so that the tip of a cosmetic brush, which picks up a powdery cosmetic material as the test piece, is in contact at a substantially right angle.
The tip of the cosmetic brush was moved 5, 10, 15, and 20 times (speed: 6rpm, radius of rotation: 100mm) with respect to the application surface, and the powder cosmetic was applied to the application surface.
The powder release properties of each test sample were evaluated by measuring the weight of the cosmetic brush after 5, 10, 15, and 20 movements, determining the difference from the weight of the cosmetic brush before the evaluation test as the powder release amount of each movement, and dividing the powder release amount by the quotient of the collected cosmetic before the evaluation test as the powder release rate (%).
The test was performed 3 times, and the average value of the powder release rate (%) of each test sample was shown in fig. 7.
From the results of fig. 7, it is clear that the cosmetic brush a composed of the hair material for a cosmetic brush of the present invention is superior in releasability (releasability), particularly, in releasability (releasability) at the initial stage from the start of the test to 5 applications, by 1.2 times or more, as compared with a cosmetic brush of goat hair (rough peak) known to have good releasability to the powdery cosmetic material. The excellent initial release property (release property) means that the cosmetic can be applied to the skin only by stroking the skin several times with a cosmetic brush, and when a spot-like color cosmetic such as blush or eye shadow is used, excellent functionality can be easily obtained, and the cosmetic has a very high advantageous effect as a cosmetic brush.
The results of "evaluation of usability of cosmetic brush 2" revealed that: the hair material for a cosmetic brush of the present invention exhibits a synergistic effect by a combination of 2 specific three-dimensional shapes of twist and a specific cross-sectional shape, is superior in powder-holding property (inclusivity) to a cosmetic brush of goat hair (thick peak), can be produced into a cosmetic brush containing a large amount of a cosmetic material easily, further exhibits an extremely superior effect in powder-releasing property (discharging property), particularly in initial powder-releasing property (discharging property), and can be produced into a cosmetic brush which discharges the contained cosmetic material quickly and reliably.
The hair material for a cosmetic brush of the present invention is excellent in both of the properties of the gripping property (inclusivity) and the releasing property (dischargeability), and therefore, it is possible to use a liquid or powder cosmetic without waste and without surplus, and it is possible to provide a cosmetic brush which is excellent in applicability to users with little concern about color mixing with other liquid or powder cosmetic.
Industrial applicability
The bristle material for a cosmetic brush of the present invention has 2 specific three-dimensional shapes, i.e., S-twist or Z-twist, which are twisted and a specific cross-sectional shape of a cocoon-shaped shape, and exhibits an additive effect by combining various three-dimensional shapes, and exhibits extremely superior performance in terms of adhesion and release of a powdery or liquid cosmetic material as compared with natural animal hair. In particular, since the initial release property (release property) is excellent, the contained cosmetic can be quickly applied to the skin, and thus the cosmetic can be applied to a cosmetic brush.
Further, since the hair material for a cosmetic brush has the tapered tip portion, it is possible to obtain a hair material for a cosmetic brush having both the touch feeling and the flexibility comparable to those of natural animal hair.
Claims (7)
1. A bristle material for a cosmetic brush, comprising S-twisted or Z-twisted synthetic resin monofilaments, wherein the monofilaments have a cocoon-shaped cross section in a direction perpendicular to the fiber axis.
2. The bristle material for a cosmetic brush according to claim 1, wherein the monofilament has a tapered tip portion formed in a tapered shape.
3. The cosmetic brush hair material as set forth in claim 2, wherein the taper portion formed in a tapered shape has a bifurcated shape at a tip end.
4. The bristle material for a cosmetic brush according to any one of claims 1 to 3, wherein the synthetic resin is a polyester resin.
5. The cosmetic brush hair material according to claim 4, wherein the polyester-based resin is 1 or 2 or more selected from the group consisting of polytrimethylene terephthalate, polyethylene terephthalate and polybutylene terephthalate.
6. A bristle material assembly for a cosmetic brush is characterized by being composed of a mixed assembly of S-twisted and Z-twisted synthetic resin monofilaments, and the monofilaments have a cocoon-shaped cross section in a direction perpendicular to the fiber axis.
7. A cosmetic brush using at least a part of the hair material for a cosmetic brush according to any one of claims 1 to 5 or the aggregate of the hair materials for a cosmetic brush according to claim 6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017233847 | 2017-12-05 | ||
| JP2017-233847 | 2017-12-05 | ||
| PCT/JP2018/044472 WO2019111868A1 (en) | 2017-12-05 | 2018-12-04 | Makeup brush bristle material and makeup brush using said bristle material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111447858A true CN111447858A (en) | 2020-07-24 |
| CN111447858B CN111447858B (en) | 2022-07-26 |
Family
ID=66750260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880078006.7A Active CN111447858B (en) | 2017-12-05 | 2018-12-04 | Hair material for cosmetic brush and cosmetic brush using the same |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20210153641A1 (en) |
| EP (1) | EP3721752A4 (en) |
| JP (2) | JP7141575B2 (en) |
| KR (1) | KR102450805B1 (en) |
| CN (1) | CN111447858B (en) |
| WO (1) | WO2019111868A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4193874A4 (en) * | 2020-08-07 | 2024-08-14 | Taiki Corp Ltd | Bristle material for cosmetic brush, and cosmetic brush using said bristle material |
| EP4376673A1 (en) | 2021-07-26 | 2024-06-05 | Unilever IP Holdings B.V. | Filaments for oral care implements |
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| US4927281A (en) * | 1988-02-12 | 1990-05-22 | L'oreal | Brush for applying mascara and container |
| CN1290504A (en) * | 1999-07-22 | 2001-04-11 | 莱雅公司 | Coating part made of twisted fiber and coating unit with said part |
| JP2007135964A (en) * | 2005-11-21 | 2007-06-07 | Toray Monofilament Co Ltd | Bristle material for makeup brush, and makeup brush |
| JP2007260199A (en) * | 2006-03-29 | 2007-10-11 | Toray Monofilament Co Ltd | Bristle material for industrial brush, and industrial brush |
| US20100071715A1 (en) * | 2008-09-24 | 2010-03-25 | Bickford William R | Shape Memory Polymer Mascara Brush |
| CN104853648A (en) * | 2012-12-14 | 2015-08-19 | 汉高股份有限及两合公司 | Application tool |
| JP2017000369A (en) * | 2015-06-09 | 2017-01-05 | 三菱鉛筆株式会社 | Applicator |
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| JPS58186605A (en) * | 1982-04-20 | 1983-10-31 | Toray Ind Inc | Animal hairlike synthetic fiber |
| JPS58191212A (en) * | 1982-05-04 | 1983-11-08 | Teijin Ltd | Production of animal-hair like yarn |
| JPS60167947A (en) * | 1984-02-06 | 1985-08-31 | カネボウ株式会社 | Raised product and its production |
| JP2002058538A (en) * | 2000-06-05 | 2002-02-26 | Toray Monofilament Co Ltd | Bristle for brush, and application thereof |
| JP2003245133A (en) | 2002-02-22 | 2003-09-02 | Toray Monofilament Co Ltd | Bristle material for brush, and use of the same |
| JP5223056B2 (en) * | 2007-09-12 | 2013-06-26 | 東レ・モノフィラメント株式会社 | Brush hair and brush |
| JP5288098B2 (en) | 2008-02-28 | 2013-09-11 | 東レ・モノフィラメント株式会社 | Brush hair material, method for producing the same, and brush |
| JP5228191B2 (en) * | 2008-03-07 | 2013-07-03 | 憲司 中村 | Makeup brush |
| JP2015006227A (en) * | 2013-06-25 | 2015-01-15 | 東レ・モノフィラメント株式会社 | Hair material for brush, and brush |
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2018
- 2018-12-04 WO PCT/JP2018/044472 patent/WO2019111868A1/en unknown
- 2018-12-04 CN CN201880078006.7A patent/CN111447858B/en active Active
- 2018-12-04 EP EP18885916.9A patent/EP3721752A4/en active Pending
- 2018-12-04 KR KR1020207016246A patent/KR102450805B1/en active IP Right Grant
- 2018-12-04 JP JP2019558209A patent/JP7141575B2/en active Active
- 2018-12-04 US US16/769,206 patent/US20210153641A1/en not_active Abandoned
-
2022
- 2022-08-01 JP JP2022122503A patent/JP7352246B2/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4927281A (en) * | 1988-02-12 | 1990-05-22 | L'oreal | Brush for applying mascara and container |
| CN1290504A (en) * | 1999-07-22 | 2001-04-11 | 莱雅公司 | Coating part made of twisted fiber and coating unit with said part |
| JP2007135964A (en) * | 2005-11-21 | 2007-06-07 | Toray Monofilament Co Ltd | Bristle material for makeup brush, and makeup brush |
| JP2007260199A (en) * | 2006-03-29 | 2007-10-11 | Toray Monofilament Co Ltd | Bristle material for industrial brush, and industrial brush |
| US20100071715A1 (en) * | 2008-09-24 | 2010-03-25 | Bickford William R | Shape Memory Polymer Mascara Brush |
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| JP2017000369A (en) * | 2015-06-09 | 2017-01-05 | 三菱鉛筆株式会社 | Applicator |
Also Published As
| Publication number | Publication date |
|---|---|
| US20210153641A1 (en) | 2021-05-27 |
| JP7352246B2 (en) | 2023-09-28 |
| JPWO2019111868A1 (en) | 2020-12-03 |
| CN111447858B (en) | 2022-07-26 |
| EP3721752A4 (en) | 2021-08-11 |
| KR102450805B1 (en) | 2022-10-04 |
| JP7141575B2 (en) | 2022-09-26 |
| JP2022140604A (en) | 2022-09-26 |
| EP3721752A1 (en) | 2020-10-14 |
| WO2019111868A1 (en) | 2019-06-13 |
| KR20200083579A (en) | 2020-07-08 |
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