JP2016022157A - Mascara applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an integrally molded mascara applicator having function to apply cosmetic liquid on eyelashes, function to dress the eyelashes and function to apply the cosmetic liquid on detail parts.SOLUTION: A mascara applicator includes a molded brush part provided with thousands of needle-like bristles. The needle-like bristles of the molded brush part are arranged in rows almost parallel to the shaft center of a base part, the rows are arranged in the peripheral direction of the base part, the rows are arranged so as to be separated in a short-bristle row group having short length and a long-bristle row group having length longer than that of the short-bristle row group in the center region of the molded brush part. The long-bristle row group composes a short-bristle portion where the bristles become short at the tip end region of the molded brush part, and composes convergent rows where a center row is set in the long-bristle row group, and rows adjacent to the center row are arranged so as to come close to the tip end direction of the center row.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a liquid cosmetic container such as mascara. Specifically, the present invention relates to an applicator for applying a mascara liquid, which is provided at the tip of an applicator bar whose rear end is connected to a ceiling portion of a cap.

  Conventionally, when applying liquid cosmetics for mascara, the applicator for mascara has the function of applying liquid cosmetics to the eyelashes, the function of combing the eyelashes to which the liquid cosmetics adhere, and applying or fine-tuning to the details. The function to do was demanded. Therefore, the density of the hair at the tip of the applicator is increased to facilitate fine application (see Patent Document 1), and the eyelashes are easily combed by partially lengthening the hair legs (see Patent Document 2). . In recent years, a molding brush (see Patent Document 3) in which the entire applicator is integrally molded with an elastic resin such as an elastomer resin is becoming mainstream. In many cases, the molding brush has a configuration in which needle-like hairs are arranged substantially in parallel with the axis of the application portion because of the mold structure and mold cost.

JP 2007-307111 A Japanese Utility Model Publication No. 5-88410 JP 2007-44524 A

  However, since the forming brush is formed by engraving each of the hairs into a mold, there is a limitation in machining on the arrangement and density of the hairs. Therefore, it has been difficult to clearly add the above three functions. In particular, it was necessary to partially increase the hair density in order to apply or fine-tune the details. For that purpose, there is only a method of narrowing the interval between the hairs in the row, or a method of increasing the number of rows in the application part to narrow the interval between the rows. Even at present, the hair spacing and the row spacing are close to the limit of mold making, so the hair density could not be increased significantly.

  A container main body for storing the liquid cosmetic, a cap for sealing the mouth of the container main body, an applicator bar having a rear end connected to the ceiling surface of the cap, and having elasticity, is fixed to the mouth of the container main body. An applicator attached to the tip of the application bar in a liquid cosmetic container provided with a wiper that is wiped and wipes off an appropriate amount of the liquid cosmetic adhering amount, the applicator having elasticity, A plurality of needle-like hairs integrally formed with a forming brush portion, and the needle-like hairs of the forming brush portion form a row substantially parallel to the axis of the base, and the rows of the base portion (43) The row is arranged in the circumferential direction, and the row is divided in the central region in the axial direction of the molded brush portion by dividing the short hair row group having short hairs and the long hair row group having long hairs longer than the short hair row group in the circumferential direction. The long hair row group constitutes a short hair portion that is a short hair on the tip side of the molded brush portion; It sets the center column in the bristle group, at least adjacent one row to the central column, constituting the converging columns that are arranged close to the center column at the short hair portion.

  The center row is at least one row having acicular hairs or a blank row having no acicular hairs. Further, the convergence row is a curved row or a straight row curved in the center row direction at the short hair part, and has an angle so as to converge in the center row direction toward the tip of the forming brush part. Put it on. Further, when a plurality of convergent columns are arranged, either the curvature rate or the angle with respect to the central column is increased as the column is farther from the central column.

  The extent to which the long hair row group extends in the circumferential direction of the forming brush part is provided in a range narrower than the spread in the circumferential direction of the short hair row group.

  As described above, according to the present invention, the needle-like bristles of the molded brush portion form a row substantially parallel to the axis of the base portion, and the row is arranged in such a manner that a plurality of rows are arranged in the circumferential direction of the base portion. In the central region in the axial direction of the forming brush portion, the short hair row group having short hairs and the long hair row group having longer hair feet than the short hair row group are arranged separately, and the long hair row group is a region at the tip of the forming brush portion. A short hair portion that is a short hair in the long hair row group, and a central row is set in the long hair row group, and at least one row adjacent to the central row is disposed close to the central row direction in the short hair portion. Constitute a converging sequence. And it comprises the application part (short hair line group) which applies liquid cosmetics according to the length of the bristle and the comb part (the center part of the long hair line group) that combs the eyelashes, in addition to the short hair part of the long hair line group Three kinds of application parts are constituted as the fine application part. In addition, since the converging row is arranged in a curved manner or the linear converging row is arranged at a different angle, the density of the acicular hair gradually increases toward the tip, and can be used without a sense of incongruity. In addition, the hair density can be freely set by changing the number of convergence rows, the degree of curvature of the convergence rows, or the arrangement angle. Furthermore, since the number of rows of acicular hair is the same at any position, it can be implemented within the range of the current mold structure.

It is front sectional drawing of the liquid cosmetic container of this invention Example. It is a perspective view of the applicator for mascara of this invention. It is a sectional side view of the applicator for mascara of this invention. FIG. 4 is a sectional view taken along arrow C in FIG. 3. FIG. 5 is a cross-sectional view taken along arrow D in FIG. 4. It is acicular hair arrangement | positioning explanatory drawing of the fine application part of the applicator for mascara of this invention. It is sectional drawing of the other Example of the applicator for mascara of this invention. It is acicular hair arrangement | positioning explanatory drawing of the fine application part of the other Example of the applicator for mascara of this invention.

  Hereinafter, the applicator for mascara of the present invention will be described. First, a liquid cosmetic container equipped with the applicator for mascara of the present invention will be described with reference to FIG. FIG. 1 is a front sectional view of a liquid cosmetic container. In the figure, the liquid cosmetic container is composed of a cylindrical container main body 1 that stores liquid cosmetic A such as mascara liquid, and a cap 2 that is screwed onto the container main body 1.

  The container body 1 is provided with a neck 11 at the top. A mouth portion 13 is opened at the upper end of the neck portion 11, and a male screw 12 is screwed around the outer periphery of the neck portion 11. The cap 2 is adapted to be fitted to the neck portion 11 of the container body 1. On the inner wall of the cap 2, a female screw 21 that is screwed with the male screw 12 of the neck portion 11 of the container body 1 to close the container body 1 is screwed. The rear end of the application bar 3 is connected to the ceiling surface 22 of the cap 2.

  The application bar 3 is inserted into the container body 1 from the mouth 13 of the container body 1 when the cap 2 is fitted to the container body 1. An applicator 4 is fastened to the tip of the application bar 3.

  The applicator 4 has a shape in which needle-like hairs 44 are erected from the base portion 43, and the outer diameter of the base portion 43 is slightly smaller than the outer diameter of the application rod 3. The applicator 4 is integrally formed of a thermoplastic resin or a thermosetting resin.

  A wiper 5 is fixed to the mouth 13 of the container body 1. The wiper 5 is formed from a soft material such as rubber or elastomer resin. The wiper 5 is provided with a wiping hole 51 through which the application bar 3 and the applicator 4 pass. The inner diameter of the wiping hole 51 is slightly smaller than the outer diameter of the applicator bar 3 and slightly larger than the outer diameter of the base 43 of the applicator 3, and when the cap 2 is removed, The adhering liquid cosmetic A is wiped off, and the liquid cosmetic A adhering to the applicator 4 is adjusted to an appropriate amount. Further, the upper end of the wiper 5 protrudes from the upper end of the mouth portion 13 of the container main body 1, and when the cap 2 is fitted to the container main body 1, the seal contacts the ceiling surface 22 of the cap 2 and seals the inside of the container main body 1. 52.

  Next, details of the applicator for mascara according to the embodiment of the present invention will be described with reference to FIGS. FIG. 2 is a perspective view of the applicator for mascara of the present invention, and FIG. 3 is a side sectional view. The applicator 4 includes a molding brush portion 42 composed of the base portion 43 and the needle-like hair 44 described above, and a connecting portion 41 connected to the applicator rod 3. The applicator 4 is integrally formed of an elastic resin such as an elastomer resin. Molded.

  The connecting portion 41 is inserted into a connecting hole 31 formed at the tip of the application bar 3 and fixed by caulking to fix the applicator 4 to the tip of the application bar 3. A base portion 43 of the molding brush portion 42 is coaxial with the connecting portion 41 and protrudes from the tip of the application rod 3. Needle-like hairs 44 are erected from the base 43.

  The needle-like hairs 44 form a line substantially parallel to the axis B because of the mold to be molded. The rows of the needle-like hairs 44 are arranged over the circumferential direction of the base portion 43 and over the axial direction of the base portion 43. The interval (distance between the hairs) G between the needle-like hairs 44 is 0.05 mm to 1.0 mm (see FIGS. 3 and 6). The number of rows of needle-like hairs 44 is provided in the range of 4 to 32 rows as a whole.

  As shown in the cross-sectional view of FIG. 4, the rows of the needle-like hairs 44 are short hair row groups 45 having short hairs in the central region in the longitudinal direction of the forming brush portion 42 (the portion indicated by the arrow C in FIG. 3). The long hair row group 46 having longer hairs than the short hair row group 45 is provided. Further, when viewed from the lateral direction, the long hair row group 46 has an arch shape in which the bristles of the needle-like hairs 44 in the center region (C arrow portion) of the molded brush portion 42 are the longest and both sides thereof are short as shown in FIG. I am doing. The length in the longitudinal direction of the base portion 43 of the short hair portion 63 (D arrow view portion) on the distal end 61 side of the long hair row group 46 is about 1.0 mm to 10.0 mm. And the short hair row group 45 becomes the application part 47 which apply | coats liquid cosmetics A to eyelashes, and the center area | region (long part of a hair foot, C arrow view part) of the long hair row group 46 is the eyelash to which liquid cosmetics A adhered. The combed part 62 becomes a comb part 62, and the short hair part 63 of the long hair group 46 is a fine application part 48 that is applied to the details of the eyelashes.

  As shown in FIG. 4, the angle of spread of the long hair row group 46 with respect to the circumferential direction (the angle between the needle hairs 44 at both ends of the long hair row group 46) E is relative to the circumferential direction of the short hair row group 45. And the spread angle (angle between the needle-like hairs 44 at both ends of the short hair row group 45) F is smaller. Further, the long hair row group 46 has a comb region 62 that combs the eyelashes in the central region (C arrow portion), so that a sufficient combing (combing eyelash) effect cannot be expected in one row, and its function is exhibited. Requires at least two rows. Moreover, it is necessary to arrange the needle-like hairs 44 in each row in a staggered manner so that the eyelashes are entangled with the needle-like hairs 44.

  Next, the fine application part 48 will be described with reference to the drawings. FIG. 5 is a cross-sectional view of the fine coating portion 48 (the portion indicated by the arrow D in FIG. 3), and FIG. 6 is an explanatory diagram of the arrangement of the needle-like hairs 44 and the rows of the fine coating portion 48. In the fine application portion 48, a specific row (the central row in the figure) in the long hair row group 46 is a central row 49, and the fine application portion 48 at the tip 61 is centered on the central row 49. In this case, the columns on both sides are converged columns 40 converged in the direction of the center column 49, respectively. As a result, in the fine application part 48, the density of the needle-like hair 44 is increased and the needle-like hair 44 is shortened as compared with other places, and the holding amount and the fine application property of the liquid cosmetic A are improved. To do. The number of columns of the central column 49 can be 0 (blank column) or 1 column or more. Further, the total number of columns of the convergence column 40 can be one or more.

  Next, the case where the applicator for mascara of this invention is implemented is demonstrated. First, as a material for the applicator for mascara of the present invention, it is desirable to use a thermoplastic resin or a thermosetting elastomer resin. Specific examples of the thermoplastic resin include resins such as polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polybutylene terephthalate, polycarbonate, and polyacetate. Further, ethylene-based, olefin-based, vinyl chloride-based, urethane-based, amide-based, and the like These thermoplastic elastomer resins can be used. As the thermoplastic elastomer, synthetic rubbers such as urethane rubber, silicon rubber, fluorine rubber, nitrile rubber, chloroprene rubber, and polybutadiene rubber can be specifically used.

  The rows of the needle-like hairs 44 provided on the base portion 43 of the forming brush portion 42 are described as being about 4 to 32 rows, but optimally, there are about 16 rows as shown in FIG. The rows of the needle-like hairs 44 need only be aligned in the direction of the axis B of the base 43, and need not be linear, need not be parallel to the axis B, and do not need to be aligned in parallel. .

  Moreover, although the interval (length between bristles) G between the needle-like hairs 44 in the row is 0.05 mm to 1.0 mm, it is about 0.5 mm optimally. Further, as shown in FIG. 6, the adjacent rows of needle-like hairs 44 are alternately arranged in a staggered manner so that the needle-like hairs 44 do not overlap. Therefore, the interval between the needle-like hairs 44 in the row is changed as necessary.

  Further, when 16 rows of needle-like hairs 44 are provided in the circumferential direction, the long hair row group 46 has 5 rows and the short hair row group 45 has 11 rows. And as shown in FIG. 4, when the row | line | column (16 rows) of the acicular hair 44 is arrange | positioned equally in the circumference direction of the base 43, the angular interval of the circumferential direction of the row | line | column of the acicular hair 44 is 22.5 °. Furthermore, when the number of long hair row groups 46 and short hair row groups 45 in all 16 rows is 5 rows and 11 rows as described above, the angle of spread of the long hair row group 46 with respect to the circumferential direction E is 90 °, and the spread angle F with respect to the circumferential direction of the short hair row group 45 is 225 °.

  An example in which the rows of needle-like hairs 44 are arranged unevenly around the entire circumference of the base 43 will be described with reference to FIG. The arrangement of the long hair row group 46 and the short hair row group 45 in FIG. 7 is such that a gap 64 is provided between the long hair row group 46 and the short hair row group 45. Specifically, the long hair row group 46 has 5 rows, the angular interval with respect to the circumferential direction is 15 °, the spread is 60 °, the short hair row group 45 has 11 rows, and the angular interval with respect to the circumferential direction is 22 rows. 5 °, the spread is 225 °, and the angular gaps 64 with respect to the circumferential direction between the long hair row group 46 and the short hair row group 45 are 37.5 °.

  Although it is the length of the acicular hair 44, the length of the acicular hair 44 in the short hair row group 45 is about 0.5 mm to 3.0 mm, and optimally about 1.0 mm to 2.2 mm. The length of the needle-like hair 44 in the long hair row group 46 is 1.0 mm to 5.0 mm at the longest site (the portion indicated by the arrow C in FIG. 3), and optimally about 2.0 mm to 4.0 mm. It is. The length of the acicular hair 44 of the short hair portion 63 in the long hair row group 46 is about 0.5 mm to 4.0 mm, and optimally about 1.0 mm to 3.0 mm. The length of the needle hair 44 of the short hair portion 63 in the long hair row group 46 is not limited by the length of the needle hair 44 of the short hair row group 45, and is longer than the length of the needle hair 44 of the short hair row group 45. Can be short or long.

  The lengths of the needle-like hairs 44 in the long hair row group 46 and the short hair row group 45 may be clearly distinguished as shown in FIG. 7, and conversely, the long hairs of the short hair row group 45 as shown in FIG. It is also possible to gradually increase the length of the needle-like hair 44 at the part in contact with the row group 46 and eliminate the step between the short hair row group 45 and the long hair row group 46. In this case, the distinction between the long hair row group 46 and the short hair row group 45 is unclear, but there is no need to clarify the boundary between them, and as shown in the cross-sectional view of FIG. A portion in which the hair length is like a mohawk may be considered as the long hair row group 46.

  Next, an embodiment of the fine application part 48 will be described. Although the length in the longitudinal direction of the base 43 of the fine application part 48 is described as being about 1.0 mm to 10.0 mm, it is optimally about 3.0 mm to 7.0 mm. In FIG. 6, one central row of five long hair row groups 46 is a central row 49, and two rows on both sides are convergent rows 40. The converging row 40 is parallel to the central row 49 in the comb portion 62, but is curved toward the central row 49 when the short hair portion 63 is formed. Of the four convergence rows 40, the outer convergence row 40b has a larger curvature (bending amount) than the convergence row 40 closer to the center row 49 (inner convergence row 40a), and the fine coating portion 48 As the tip 61 is approached, the convergence rate increases and the density of the needle-like hairs 44 increases.

  Further, another embodiment of the fine application part 48 shown in FIG. 8 will be described. The convergence rows 40 on both sides of the center row 49 are linear, and converge from the comb portion 62 toward the tip 61 of the center row 49. That is, the center row 49 and the convergence row 40 are not parallel, but are arranged at different angles so that the distance between the center row 49 and the convergence row 40 decreases toward the tip 61. Therefore, the outer convergence row 40b is more inclined with respect to the center row 49 than the inner convergence row 40a, and the density of the needle-like hairs 44 increases as the tip portion 61 is approached.

  In the present invention, the center row 49 is set at the center row of the long hair row group 46, but it may be provided to be shifted to either of the long hair row groups 46. Further, although the number of rows of the central row 49 has been described as being 0 or 1 or more, it may be a plurality of rows depending on the number of rows of the long hair row group 46. The number of center rows 49 being zero means that the center row 49 is a blank portion without the needle-like hair 44 as the center row. Further, it is not necessary to provide the same number of convergence rows 40 across the central row 49, and the number of the convergence rows 40 may be increased so that the convergence rows 40 are unevenly distributed.

  When the center row 49 is a row of needle-like hairs 44, the minimum configuration of the fine coating portion 48 is that the center row 49 and the convergence row 40 are each one row, and the center row 49 is a blank row without the needle-like hairs 44. In this case, the convergence column 40 can be configured with two columns. Therefore, it is not necessary to configure the fine coating unit 48 using all the rows of the long hair row group 46, and the fine coating unit 48 can be provided by partially using a part of the rows.

DESCRIPTION OF SYMBOLS 1 Container body 2 Cap 3 Application | coating stick 4 Applicator 5 Wiper 11 Neck part 12 Male screw 13 Mouth part 21 Female screw 22 Ceiling surface 31 Connection hole 40 Convergence row 40a Inner convergence row 40b Outer convergence row 41 Connection portion 42 Molding brush part 43 Base 44 Needle hair 45 Short hair row group 46 Long hair row group 47 Application part 48 Fine application part 49 Center row 51 Wiping hole 52 Packing 61 Tip 62 Comb part 63 Short hair part A Liquid cosmetic B Axial center C Center of the forming brush part Part D Tip of the forming brush part E Angle of spread of long hair rows F Angle of spread of short hair rows G Gap spacing

Claims (6)

A container body (1) for containing the liquid cosmetic (A), a cap (2) for sealing the mouth (13) of the container body (1), and a ceiling surface (22) of the cap (2) An applicator bar (3) having an end connected thereto, and a wiper (5) which has elasticity and is fastened to the mouth part (13) of the container body (1) to wipe off the adhering amount of the liquid cosmetic (A). A liquid cosmetic container comprising: an applicator (4) fastened to the tip of the application bar (3);
The applicator (4) has elasticity, and has a molded brush part (42) integrally provided with a plurality of needle-like hairs (44),
The needle-like hairs (44) of the molded brush portion (42) form a row substantially parallel to the axis (B) of the base portion (43), and a plurality of rows are coupled in the circumferential direction of the base portion (43). In the central region (C) in the axial direction of the molded brush portion (42), the row is a short hair row group (45) having short hairs and a long hair row having longer hairs than the short hair row group (45). The group (46) is divided and arranged in the circumferential direction, and the long hair row group (46) constitutes a short hair part (63) that is short hair on the tip (61) side of the molded brush part (42), Furthermore, a center row (49) is set in the long hair row group (46), and at least one row adjacent to the center row (49) is approached in the direction of the center row (49) at the short hair portion (63). The applicator for mascara which comprises the convergence row | line | column (40) arrange | positioned.   2. The mascara according to claim 1, wherein the central row (49) is at least one row having acicular hairs (44) or a blank row not having acicular hairs (44). applicator.   3. The mascara according to claim 1, wherein the convergence row (40) is a curved row curved in the direction of the central row (49) at the short hair portion (63). Applicator.   The convergence row (40) is a linear row and is arranged at an angle so as to converge toward the center row (49) toward the tip (61) of the forming brush portion (42). The applicator for mascara according to claim 1 or 2.   5. The convergence row (40) is characterized in that either the curvature or the angle with respect to the center row (49) is increased as the row is farther from the center row (49). An applicator for mascara as described in that section.   The spread (E) of the long hair row group (46) with respect to the circumferential direction of the molded brush portion (42) is provided in a range narrower than the spread (F) of the short hair row group (45). The applicator for mascara according to any one of claims 1 to 5.

Images