WO2012160649A1

WO2012160649A1 - Cosmetic applicator

Info

Publication number: WO2012160649A1
Application number: PCT/JP2011/061873
Authority: WO
Inventors: 弘法麻生
Original assignee: 株式会社新和製作所
Priority date: 2011-05-24
Filing date: 2011-05-24
Publication date: 2012-11-29

Abstract

[Problem] To provide a cosmetic applicator in which a brush part exerts excellent functions of combing the eyelashes and the eyebrows and of applying a cosmetic material regardless of the viscosity (stickiness) of a liquid cosmetic material to be applied. [Solution] A cosmetic applicator provided with a brush shaft (14) of which the base end part functions as an operation part (15), and with a brush part (16) in which plate-like comb blades (17) extending in the direction that is orthogonal to the brush shaft (14) are arranged on one side surface on the tip of the brush shaft (14) in the axial direction at a predetermined pitch, wherein side grooves (18) extending in the direction that is orthogonal to the extending direction of the comb blades (17) are formed on the side surfaces of the comb blades (17). The distance between the comb blades (17) is relatively greater so as to accommodate the application of a high-viscosity cosmetic material. As a consequence, the contact area in which the comb blades (17) come into contact with the cosmetic material becomes smaller, causing a decline in the function of the brush part (16) to retain a low-viscosity cosmetic material. However, the side grooves (18) formed on the side surfaces of the comb blades (17) compensate for the reduction in the contact area in which the comb blades (17) come into contact with the cosmetic material, thereby allowing the brush part (16) to retain a large amount of a low-viscosity cosmetic material.

Description

Cosmetic applicator

The present invention relates to a mascara or eyebrow cosmetic applicator used for applying liquid cosmetics to eyelashes or eyebrows, and in particular, on the distal end side of a rod-shaped brush shaft having a base end as an operation portion. The present invention relates to a cosmetic applicator provided with a brush portion in which plate-like comb blades are formed to extend on a side surface of a brush shaft at a predetermined pitch in the axial direction.

This type of mascara or eyebrow cosmetic applicator, as shown in Patent Documents 1 and 2 below, is attached to the distal end side of a resin-made rod-shaped brush shaft having a base end portion as an operating portion, on one side of the brush shaft. A brush portion in which plate-like comb blades are formed so as to have an equal pitch in the axial direction is integrally formed.

A sufficient amount of liquid cosmetic can be held between the comb blade and the comb blade of the brush part, so that a sufficient amount of cosmetic is applied to the eyelashes and eyebrows at the same time as the eyelashes and eyebrows are combed with the brush part (comb blade). Can be applied.

Japanese Utility Model Publication No. 63-40168 (left column of page 2, FIGS. 2 to 9) JP 2008-73155 A (FIGS. 9 and 10)

In this type of cosmetic applicator, it is generally desirable for the function of combing eyelashes and eyebrows to have a certain distance between the comb blade and the comb blade (preferably through the comb). For the function of holding (coating) the material, it is desirable that the distance between the comb blade and the comb blade is narrow to some extent because the contact area between the comb blade and the cosmetic increases.

However, the desired interval between the comb blade and the comb blade varies depending on the viscosity of the cosmetic to be applied.

For example, in low-viscosity (viscous) cosmetics, even if the gap between the comb blades is narrow, the cosmetics can enter between the comb blades and the comb blades, so that a large amount of cosmetics can be held in the brush part, which is sufficient It is possible to apply a proper amount of cosmetics. On the other hand, in liquid cosmetics containing high-viscosity (viscous) fibers (short fibers) that have been used in recent years, the distance between the comb blade and the comb blade is narrow (desired for low-viscosity cosmetics). Cosmetics hardly enter between the comb blade and the amount of makeup that can be held on the brush part is small, and a large amount of cosmetic cannot be applied at one time.

Therefore, in this type of conventional cosmetic applicator, the gap between the comb blade and the comb blade is set to be large to some extent so that it can be applied to cosmetics with high viscosity (viscosity).

That is, since the interval between the comb blade and the comb blade is large to some extent, when applying cosmetics with low viscosity (viscosity), the contact area of the brush portion (comb blade) with the cosmetic material decreases, and the brush portion There remains a problem that the function of retaining cosmetics is inferior and a sufficient amount of cosmetics cannot be applied, and there has been a demand for improving this problem.

Therefore, if the inventor forms a lateral groove extending in the direction orthogonal to the comb blade extending direction on the side surface of the comb blade, the contact area of the brush portion (comb blade) with the cosmetic material increases, and the brush portion has a larger amount. The cosmetic material attached to the comb blade extends in a direction perpendicular to the moving direction of the cosmetic material when the cosmetic material attached to the comb blade moves in the comb blade extending direction along the side surface of the comb blade by its own weight. We thought that the lateral groove restrained the movement of cosmetics.

And when the inventor made a prototype and verified its effect, it was confirmed that it was effective.

The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to apply the function of combing the eyelashes and eyebrows of the brush part and the cosmetics irrespective of the viscosity (viscosity) of the cosmetics to be applied. The object is to provide a cosmetic applicator excellent in both functions.

In order to solve the above-described problem, in the cosmetic applicator according to claim 1, a rod-shaped brush shaft having a base end portion as an operation portion, and at least one side surface of the brush shaft at a distal end side thereof is orthogonal to the brush shaft. In a cosmetic applicator comprising a brush portion in which plate-like comb blades extending in a direction to be arranged are arranged at a predetermined pitch in the axial direction,
A cosmetic applicator characterized in that a lateral groove extending in a direction perpendicular to the extending direction of the comb blade is formed on a side surface of at least a part of the comb blade of the brush portion.

(Function) For the function of combing eyelashes and eyebrows, it is desirable that the distance between the comb blades and the comb blades is desirable (the contact friction resistance with the eyelashes and eyebrows is small, so the combs are good), but makeup For the function of holding (coating) the material, it is desirable that the distance between the comb blade and the comb blade is narrow to some extent (when the distance between the comb blade and the comb blade is increased, the contact area between the brush portion and the cosmetic is reduced). However, in high-viscosity (viscous) liquid cosmetics such as fiber (short fiber) cosmetics, which have been used in recent years, if the distance between the comb blade and the comb blade is narrow, the cosmetic is between the comb blade and the comb blade. Can hardly be applied at the same time because the amount of cosmetics that can be held on the brush portion is reduced.

Therefore, in claim 1, the distance between the comb blades of the brush portion and the comb blades is set to be large to some extent so as to sufficiently cope with the application of the high viscosity (viscous) liquid cosmetic.

In addition, since the space between the comb blade and the comb blade is large to some extent, the contact area of the brush portion (comb blade) with the cosmetic is reduced accordingly, and for low-viscosity (viscous) cosmetics, the makeup of the brush portion There is a possibility that a sufficient amount of cosmetics cannot be applied because the function of holding the cosmetics is so poor.

However, the surface area of the comb blade (the contact area of the comb blade with the cosmetic material) increases by the surface area of the lateral groove formed on the side surface of the comb blade, so that much cosmetic material can be held in the brush portion.

In addition, cosmetics attached to the comb blade and cosmetics once entered between the comb blade and the comb blade try to move away from the comb blade along the side of the comb blade by its own weight, The lateral groove extending in the direction orthogonal to the comb blade extending direction (moving direction of the cosmetic material) suppresses the movement of the cosmetic material, so that much cosmetic material is applied to the brush portion (for example, the side surface of the comb blade or the comb). Between the blade and the comb blade).

In addition, the brush part (comb blades arranged at a predetermined pitch) has a function of combing eyelashes and eyebrows, but the lateral groove is a relative relationship between the brush part (comb blade) and eyelashes or eyebrows when applying cosmetics. The horizontal groove does not hinder the action of combing the eyelashes and eyebrows of the comb blades.

In claim 2, in the cosmetic applicator according to claim 1, the lateral groove is formed on each of a pair of side surfaces of the comb blade.

(Action) Since the contact area of the comb blade with the cosmetic increases, so much cosmetic can be held in the brush part.

Further, the cosmetic material adhering to the comb blade tends to deviate by moving in the comb blade extending direction along the side surface of the comb blade by its own weight, but the movement of the cosmetic material along the pair of side surfaces of the comb blade Since it is restrained by the lateral grooves formed on each of the side surfaces, it is possible to hold more cosmetic material in the brush part.

In claim 3, in the cosmetic applicator according to claim 1 or 2, a plurality of the lateral grooves are formed at a predetermined pitch in the height direction of the comb blade.

(Action) Since the contact area of the comb blade with the cosmetics is further increased, so much cosmetics can be held in the brush part.

Further, the cosmetic material adhering to the comb blade tends to deviate by moving in the comb blade extending direction along the side surface of the comb blade by its own weight, but the movement of the cosmetic material along the side surface of the comb blade is separated in the moving direction. Since it is restrained by the plurality of lateral grooves, it is possible to hold so much cosmetic material in the brush part.

According to a fourth aspect of the present invention, in the cosmetic applicator according to any one of the first to third aspects, the comb is disposed on the back side of the brush portion (the side opposite to the comb blade forming side on the brush shaft tip side). The second comb blades lower than the blade height were formed at a predetermined pitch in the axial direction.

(Operation) Since the second comb blade having a low height on the back side of the brush portion has a smaller cosmetic amount than the comb blade having a high height on the front side of the brush portion, the back side of the brush portion (second comb) In the blade), the amount of makeup that can be applied is less than in the case of applying using the front side of the brush part.

As is clear from the above description, according to the cosmetic applicator according to the present invention, the function of combing eyelashes and eyebrows and the application of cosmetics to eyelashes and eyebrows, regardless of the viscosity (viscosity) of the cosmetic to be applied A cosmetic applicator excellent in both functions is provided. That is, not only high-viscosity (viscous) cosmetics but also low-viscosity (viscous) cosmetics, a large amount can be smoothly applied to the eyelashes and eyebrows at a time.

According to the second aspect, since a larger amount of cosmetic can be held on the brush part, a cosmetic applicator that is more excellent in the function of applying the cosmetic is provided.

According to the third aspect, since the brush portion can hold a larger amount of the cosmetic, a cosmetic applicator having a more excellent function of applying the cosmetic is provided.

According to the fourth aspect, the brush portion front side is used when applying a large amount of makeup, and the brush portion rear side is used when applying a small amount of makeup. it can.

It is a front view of the cosmetic applicator according to the first embodiment of the present invention. It is a top view of the applicator. FIG. 3 is an enlarged cross-sectional view of the brush portion of the applicator (a cross-sectional view taken along line III-III in FIG. 1). It is an enlarged front view of the comb blade which is the principal part of the brush part of the applicator. (A)-(c) is an enlarged front view of the comb blade from which each horizontal groove formation position differs. (A)-(c) is an enlarged front view of the comb blade from which the shape of a transverse groove differs, respectively. It is a front view of the cosmetic applicator according to the second embodiment of the present invention. It is an enlarged front view of the brush part which is the principal part of the applicator. FIG. 9 is an enlarged cross-sectional view of the brush portion of the applicator (a cross-sectional view taken along line IX-IX in FIG. 8). It is an enlarged front view of the brush part which is the principal part of the cosmetic applicator which concerns on the 3rd Example of this invention.

(First embodiment)
A first embodiment in which the cosmetic applicator according to the present invention is applied to an applicator for mascara will be described with reference to FIGS. 1 is a front view of a cosmetic applicator according to a first embodiment, FIG. 2 is a plan view of the applicator, and FIG. 3 is an enlarged cross-sectional view of a brush portion of the applicator (line III-III in FIG. 1). FIG. 4 is an enlarged front view of a comb blade that is a main part of the brush portion of the applicator.

As shown in FIGS. 1 to 4, the cosmetic applicator 10 according to the first embodiment has an operation portion 15 that also serves as a lid of a cosmetic container (not shown) containing mascara liquid that is a liquid cosmetic. A cylindrical rod-shaped brush shaft 14 made of synthetic resin such as PP or PBT, and a large number of plate-like comb blades 17 on one side surface 14a of the brush shaft 14 at a constant pitch in the axial direction. The brush portions 16 are arranged.

In addition, a known wiping portion (wiper) made of a compressible member such as rubber for scraping a predetermined amount of mascara liquid adhering to the brush portion 16 is provided around the opening of the cosmetic container. Yes.

Further, the distance between the comb blade 17 and the comb blade 17 of the brush portion 16 is set to be large to some extent so that it can sufficiently cope with the application of a high viscosity (viscous) mascara solution such as a fiber (short fiber) mascara solution. ing.

Specifically, the comb blade 17 has a substantially triangular outer shape and a thin thickness (for example, a thickness of 0.35 mm), and is adjacent to the adjacent comb blade 17 at a predetermined pitch (for example, a pitch of 0.8 mm) in the axial direction. The interval between the comb blades 17 is set to 0.45 mm, and the height (extension length) of the comb blades 17 is set to 2 mm.

Further, the height (extension length) of the comb blade 17 constituting the brush portion 16 is the same in all the comb blades 17, but the region corresponding to the brush portion 16 of the brush shaft 14 (comb blade extension region). ) 14a1 near the tip end portion of 14a is formed in a taper shape that becomes thinner toward the tip end side, and the tip end side of the brush portion 16 is tapered in front view. By using this tip end side of the tapered brush portion 16, eyelashes and It is easy to apply mascara to the details of eyebrows. The tip end of the brush shaft 14 (tip end of the brush portion 16) is formed in a spherical shape with a small diameter so that the tip of the brush portion 16 does not damage the skin or the like.

Further, on the back side of the brush portion 16 (the side opposite to the comb blade forming side on the brush shaft front end side), a second comb blade 27 having a saw blade shape lower than the height of the comb blade 17 is pivoted. It is formed in a predetermined direction pitch (smaller than the pitch of the comb blades 17, for example, a pitch of 0.6 mm). The second comb blade 27 having a low extension height has a smaller amount of mascara liquid that can be held than the comb blade 17 having a high extension height on the front surface side of the brush portion 16. In the second comb blade 27), the amount of mascara liquid that can be applied is smaller than in the case of applying using the front side of the brush portion 16.

Therefore, when it is desired to apply a large amount of mascara liquid, the front side of the brush part 16 is used, and when a small amount of mascara liquid is desired to be applied, the back side of the brush part 16 is used. .

In addition, the pair of side surfaces of the comb blade 17 is orthogonal to the extending direction of the comb blade 17 (upward direction in FIGS. 3 and 4) so that it can sufficiently cope with the application of the low viscosity (viscous) mascara liquid. The lateral grooves 18 extending in the direction to be formed are respectively formed. The groove width of the lateral groove 18 is set to a predetermined width (in this embodiment, 0.2 mm) in which fibers (short fibers) in the high-viscosity (viscous) mascara liquid are not clogged.

In other words, the distance between the comb blade 17 and the comb blade 17 of the brush portion 16 is set to be as large as 0.45 mm (low viscosity mascara) so that it can sufficiently cope with the application of the high viscosity (viscous) mascara liquid. Therefore, the contact area of the brush portion 16 (comb blade 17) with the mascara liquid becomes smaller (smaller), so that the low viscosity (viscous) mascara liquid is reduced. The function of holding the mascara liquid of the brush part 16 (comb blade 17) is so poor that there is a possibility that a sufficient amount of mascara liquid cannot be applied.

However, in this embodiment, the contact area of the comb blade 17 with the mascara liquid 20 is increased by the surface area corresponding to the lateral groove 18 formed on the side surface of the comb blade 17, so that much low viscosity (viscous) mascara liquid is brushed. The part 16 can be held.

In addition, in this embodiment, the lateral grooves 18 are formed on each of the pair of side surfaces of the comb blade 17, and further, a plurality of lateral grooves 18 are formed at a predetermined pitch in the height direction of the comb blade 17. The contact area with the liquid 20 is further increased, so that more low-viscosity (viscous) mascara liquid can be held in the brush portion 16.

Further, the mascara liquid 20 adhering to the comb blade 17 or the mascara liquid 20 once entering between the comb blade 17 and the comb blade 17 moves in the comb blade extending direction along the side surface of the comb blade 17 by its own weight. Although it is going to deviate, since the horizontal groove 18 extended in the direction orthogonal to the comb blade extending direction (moving direction of the mascara liquid 20) suppresses the movement of the mascara liquid 20, so much low viscosity (viscous) mascara. The liquid is held on the brush portion 16 (the side surface of the comb blade 17 or between the comb blade 17 and the comb blade 17).

The brush portion 16 (the comb blades 17 arranged at a predetermined pitch) has a function of spreading the eyelashes, but the lateral groove 18 has the brush portion 16 (the comb blades 17) when applying the mascara liquid and the eyelashes or eyebrows. For example, when the mascara liquid is applied to the eyelashes, the brush portion 16 moves as shown by an arrow A in FIG. Thus, since the eyelashes 30 can move smoothly in the direction in which the lateral grooves 18 extend, the lateral grooves 18 do not hinder the action of combing the eyelashes of the comb blades 17 when the mascara liquid is applied to the eyelashes.

In addition, the cosmetic applicator 10 is formed of an integrally molded body of a synthetic resin such as PP or PBT, but a pair for forming the cosmetic applicator 10 in a relationship that a lateral groove 18 is formed on the side surface of the comb blade 17. A lateral groove 18 extends in a direction perpendicular to the parting line of the mold.

That is,

reference numerals

50A and 50B in FIG. 3 indicate a pair of molds for molding the cosmetic applicator 10, and in order to form the lateral groove 18 on the side surface of the comb blade 17 without using a split mold, It is necessary to form the lateral grooves 18 in a direction orthogonal to the parting lines 52 of the

molds

50A and 50B.

In the first embodiment described above, the lateral grooves 18 are formed on the pair of side surfaces of all the comb blades 17 of the brush portion 16. However, as shown in FIG. The lateral groove 18 may be formed only on one of the side surfaces.

That is, in FIG. 5A, the lateral groove 18 is formed only on the side surface 17 a corresponding to the tip side of the applicator among the pair of side surfaces of all the comb blades 17 of the brush portion 16.

Further, in FIG. 5 (b), a groove 18 is formed on the opposing side surface for each pair of

comb blades

17 and 17 adjacent in the axial direction.

Further, in the first embodiment described above and FIGS. 5A and 5B, the lateral grooves 18 formed on the side surfaces of the comb blade 17 of the brush portion 16 are all at the same pitch in the extending direction of the comb blade 17. 5 (c), the pitch of the lateral grooves 18 formed on the side surface 17a corresponding to the applicator tip side of the comb blade 17 and the applicator rear end side of the comb blade 17 are formed as shown in FIG. The pitch of the lateral grooves 18 formed on the side surface 17b may be shifted by a half pitch in the extending direction of the comb blades 17.

Further, in the first embodiment described above and FIGS. 5A to 5C, the cross-sectional shape of the lateral groove 18 formed on the side surface of the comb blade 17 of the brush portion 16 is rectangular. As shown in FIGS. 6A to 6C, a triangular shape, an arc shape, or a wave shape may be used.

(Second embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 7 is a front view of a cosmetic applicator according to a second embodiment of the present invention, FIG. 8 is an enlarged front view of a brush portion which is a main part of the cosmetic applicator, and FIG. 9 is an enlarged cross-section of the brush portion. FIG. 9 is a plan view (a cross-sectional view taken along line IX-IX in FIG. 8).

In the first embodiment described above, the extending heights of the many comb blades 17 in the brush portion 16 are all configured to be the same. However, in this second embodiment, three comb blades 17A adjacent in the axial direction are provided. , 17B, 17C as one set, the extension height of the comb blade is gradually increased from the tip side toward the rear.

That is, the extension height H1 of the first (frontmost) comb blade 17A corresponding to the front end side of the brush portion 16 and the extension height H2 of the second comb blade 17B of the third comb blade 17C. The extension height H3 is H1 <H2 <H3, and the line L2 connecting the extension ends of the

comb blades

17A, 17B, and 17C is at a predetermined angle with respect to the axis L of the brush shaft 14 as shown in FIG. It is formed in a saw blade shape inclined by θ.

In this embodiment, when applying the mascara liquid, the eyelashes are respectively bundled and dispersed in the recessed area of the saw blade formed by the three

comb blades

17A, 17B, 17C being continuous in the axial direction. By applying it, the mascara solution can be applied to give a sense of volume.

Others are the same as the first embodiment except that the region corresponding to the brush portion 16 of the brush shaft 14 (comb blade extending region) is formed with a constant thickness in the axial direction. The duplicate description is abbreviate | omitted by attaching | subjecting the same code.

In the second embodiment, the extension heights H1, H2, and H3 of the three

comb blades

17A, 17B, and 17C adjacent in the axial direction are gradually increased from the tip side toward the rear. However, as shown in FIG. 9, the extension heights H1, H2, and H3 of the three

comb blades

17A, 17B, and 17C adjacent in the axial direction gradually decrease from the tip side toward the rear ( You may comprise so that the extension height of a comb blade may become high gradually toward the front from the rear end side.

In the embodiment described above, the horizontal grooves 18 are formed in all the comb blades 17 constituting the brush portion 16, but the lateral grooves 18 are formed only in some of the comb blades 17 constituting the brush portion 16. Also good.

In the above-described embodiments, the applicator 10 has been described as a mascara applicator for eyelashes, but it can naturally be used as an applicator for eyebrows used for eyebrows.

It can be used as an applicator for mascara and eyebrow used to apply liquid cosmetics to eyelashes and eyebrows.

10 Cosmetic applicator (mascara applicator)
14 Brush shaft 16

Brush part

17, 17A, 17B, 17C Comb blade 18 Horizontal groove 20 Mascara liquid 27 Second comb blade

Claims

A rod-like brush shaft having a base end portion as an operation portion, and plate-like comb blades extending in a direction orthogonal to the brush shaft are arranged at a predetermined pitch in the axial direction on at least one side surface on the distal end side of the brush shaft. In a cosmetic applicator comprising a brush part,
A cosmetic applicator characterized in that a lateral groove extending in a direction perpendicular to the extending direction of the comb blade is formed on a side surface of at least a part of the comb blade of the brush portion.
The cosmetic applicator according to claim 1, wherein the lateral groove is formed on each of a pair of side surfaces of the comb blade.
The cosmetic applicator according to claim 1 or 2, wherein a plurality of the lateral grooves are formed at a predetermined pitch in the height direction of the comb blade.
The cosmetic application according to any one of claims 1 to 3, wherein a second comb blade lower than the height of the comb blade is formed on the back side of the brush portion at a predetermined pitch in the axial direction. Ingredients.