JP2018082784A - Liquid applicator and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid applicator that enables uniform application, much application, fine application, etc.SOLUTION: A liquid applicator comprises a core material 2 constituted by twisting 2-wire with each other and extending in the vertical direction; and a brush body 4 having many brush bristle materials 3 projected radially outwardly from between the wire twisted with each other centering on the core material 2. The many brush bristle materials 3 constitutes an application unit 5 for applying application liquid to application object bristles. The application unit 5 is formed of grooves 6 having a predetermined width in a predetermined direction by putting the brush bristle materials 3. The brush bristle materials 3 are loosened and the tip is configured to be expanded at random.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a liquid applicator and a method of manufacturing the liquid applicator, and is particularly suitable for application when applying a coating liquid such as mascara or hair dyeing liquid to the application target hair, such as a mascara brush or a hair dyeing brush. It is a thing.

  Conventionally, for example, as a mascara brush, as disclosed in Patent Document 1, a mascara applied to the eyelashes is applied to the eyelashes. Usually, a large number of brush bristle materials are sandwiched between two folded core materials, and the core material is rolled up so that a large number of brush hair materials radiate from the core material, and the core material base end is embedded and fixed. It is common to consist of a handle.

JP-A-5-228018

  Thus, since the conventional mascara brush is formed so that a large number of bristle materials are radiated from the core material by winding up the core material, there is a gap corresponding to the thickness of the core material between the brush hair materials. The coating liquid accumulates in the gap. For this reason, when applying the coating solution, there is a problem that several eyelashes enter the gap portion where the coating solution is accumulated, and it is applied as a liquid ball to the eyelashes. Application, a large amount of application, and fine application were not possible.

  The present invention has been made in view of such circumstances, and a liquid applicator and a liquid application capable of uniform application, a large amount of application, fine application, and the like and capable of reliably removing an application liquid and the like. It is intended to propose a method for manufacturing tools.

  In order to solve the above-described problems and achieve the object, the present invention is configured as follows.

The invention according to claim 1 is a longitudinally extending core formed by twisting two wires together,
Including a brush body having a large number of bristle members projecting radially outward from between the wire rods twisted together around the core material;
The plurality of brush bristle materials constitute an application part for applying the application liquid to the application target hair,
The application part is
A groove having a predetermined width is formed in a predetermined direction by bringing the brush bristle material,
The brush bristle material is a liquid applicator characterized in that the brush bristle material has a configuration in which the tips are randomly spread out.

  The invention according to claim 2 is the liquid applicator according to claim 1, wherein a tip of the brush bristle material randomly spread covers the groove.

According to a third aspect of the present invention, the groove comprises:
3. The liquid applicator according to claim 1, wherein the liquid applicator is configured to be formed in a direction along an axis of the core material, a direction orthogonal to the axis, or a direction crossing the axis in an oblique direction. .

According to a fourth aspect of the present invention, the core material extending in the longitudinal direction is
Bend along the eyelashes, the target hair,
The said application part is a structure which apply | coats a coating liquid with respect to eyelashes, The liquid applicator of any one of Claim 1 thru | or 3 characterized by the above-mentioned.

The invention according to claim 5 is a longitudinally extending core composed of two wire rods twisted together,
Including a brush body having a large number of bristle members projecting radially outward from between the wire rods twisted together around the core material;
The plurality of brush bristle materials constitute an application part for applying the application liquid to the application target hair,
Process the groove having a predetermined width in a predetermined direction by bringing the brush bristle of the application part closer to the brush bristle by a groove forming jig,
In the method for manufacturing a liquid applicator, the brush bristle that has been gathered is processed by a bristle material forming jig, and the tip of the brush bristle material is randomly expanded.

  With the above configuration, the present invention has the following effects.

  In the first to fifth aspects of the present invention, a large number of brush bristle members that protrude radially outward constitute an application part that applies the application liquid to the application target hair, and the application part is a brush hair. A groove having a predetermined width in a predetermined direction is formed by gathering the material, the brush bristle material that has been gathered has a configuration in which the tips are randomly spread, and the coating liquid accumulates in the groove, for example, a large amount in the eyelashes After application, the coating solution can be applied uniformly by spreading the eyelashes one by one with the tip of the brush bristle material, or it can be finely applied and finished beautifully.

It is a figure which shows embodiment which formed the groove | channel in the direction in alignment with the axis line of a core material in the application part of a liquid applicator. It is a figure which shows embodiment which formed the groove | channel in the direction orthogonal to the axis line of a core material in the application part of a liquid application tool. It is a figure which shows embodiment which formed the groove | channel in the direction which crosses the axis line of a core material in the diagonal direction in the application part of a liquid application tool. It is a figure which shows the structure which extended the front-end | tip of the brush bristle material at random. It is a figure which shows embodiment which bent the core material of the liquid application tool. It is a figure explaining the manufacturing method of a liquid applicator. It is a figure which shows the groove forming jig which forms the groove | channel of the direction orthogonal to an axis. It is a figure which forms the groove | channel of the direction orthogonal to an axis line. It is a figure explaining formation of the groove | channel of the direction which crosses an axis line in the diagonal direction. It is a figure which shows the bristle material formation jig | tool in the case of having a groove | channel of the direction along an axis. It is a figure explaining the process spread at random. It is a figure which shows the bristle material shaping | molding jig | tool in the case of having a groove | channel of the direction orthogonal to an axis. It is a figure which shows the bristle material shaping | molding jig | tool in the case of having a groove | channel of the direction which crosses an axis line diagonally.

  Hereinafter, embodiments of the liquid applicator and the method of manufacturing the liquid applicator according to the present invention will be described. The embodiment of the present invention shows the most preferable mode of the present invention, and the present invention is not limited to this. This liquid applicator is an application brush, lip brush, foundation brush, etc. for applying an application liquid such as mascara or hair dyeing liquid to the target hair, such as a hair dyeing brush such as a mascara brush, eye shadow brush, eyebrow brush, etc. It is used for application brushes such as a spot brush and a cosmetic liquid application brush. It can also be used for applying nail polish to nails and is not limited to cosmetic use.

(Configuration of liquid applicator)
The liquid applicator according to this embodiment will be described with reference to FIGS. FIG. 1 is a view showing an embodiment in which a groove is formed in the direction along the axis of the core material in the application part of the liquid applicator, and FIG. 2 is a diagram showing a groove in the direction perpendicular to the axis of the core material in the application part of the liquid applicator. FIG. 3 is a view showing the formed embodiment, FIG. 3 is a view showing an embodiment in which a groove is formed in a direction crossing the axis of the core material in an oblique direction in the application portion of the liquid applicator, and FIG. FIG. 5 is a diagram showing a randomly expanded configuration, and FIG. 5 is a diagram showing an embodiment in which the core material of the liquid applicator is bent.

  The liquid applicator 1 of this embodiment includes a core material 2 extending in the longitudinal direction formed by twisting together two bent wire materials, and wires 2a and 2b twisted together around the core material 2. It includes a brush body 4 having a large number of brush bristle materials 3 projecting radially outward from the gap. A large number of brush bristle materials 3 protruding radially outward constitute an application unit 5 that applies the application liquid to the application target hairs.

  The applicator 5 has a configuration in which the brush bristle material 3 is brought close to the groove 6 having a predetermined width W in a predetermined direction, the brush bristle material 3 is scattered, and the tip 3a is randomly expanded. The groove 6 is configured to be formed in a direction along the axis of the core material 2 (FIG. 1), a direction orthogonal to the axis (FIG. 2), or a direction crossing the axis obliquely (FIG. 3). The grooves 6 formed in the direction along the axis of the core material 2 are formed, for example, 2, 4, 8, 12,... (FIG. 1B).

  The applicator 5 has a structure in which a groove 6 having a predetermined width W is formed in a predetermined direction by bringing the brush bristle material 3 close together, and the application liquid is accumulated in the groove 6. The tip of the brush bristle material 3 has a configuration that is randomly expanded. In the embodiment of FIG. 4A, the tip 3a of the brush bristle material 3 adjacent to each other across the groove 6 does not contact each other. In the embodiment 4 (b), the tips 3a of the brush bristle materials 3 adjacent to each other across the groove 6 are in contact with each other.

  In the embodiment of FIGS. 1 to 4, the core material 2 of the liquid applicator 1 extends linearly in the vertical direction, but in the embodiment of FIG. 5, the core material 2 extending in the vertical direction is the object to be applied. It bends along the eyelashes 10 which are hair, and the application part 5 is a structure which apply | coats a coating liquid with respect to the eyelashes 10. FIG.

[Use of liquid applicator]
In the embodiment of FIG. 4A, since the tips 3a of the brush bristle materials 3 adjacent to each other with the groove 6 interposed therebetween are not in contact with each other, a large amount of coating liquid is accumulated in the groove 6 and the brush bristle material 3 A large amount of coating liquid can be applied to the application target hair from between the tips 3a. For example, since a large amount can be applied to the eyelashes and the brush bristle material 3 is scattered after the application, the eyelashes are spread one by one by the tip 3a of the brush bristle material 3 so as to give a volume feeling. can do.

  In the embodiment of FIG. 4B, since the tips 3a of the brush bristle materials 3 adjacent to each other with the groove 6 in between are in contact with each other, a large amount of coating liquid is accumulated in the groove 6, but the brush bristle material 3 The application liquid can be applied to the application target hair little by little from between the tips 3a of the hair. For example, since a small amount can be applied to the eyelashes and the brush bristle material 3 is scattered after application, the coating solution is uniformly applied so that the eyelashes are spread one by one by the tip 3a of the brush bristle material 3. Or can be finely coated and finished beautifully.

  In the embodiment of FIG. 5, the core material 2 extending in the vertical direction bends along the eyelashes 10 that are application target hairs, and the application unit 5 is configured to apply the application liquid to the eyelashes 10. Since each of the 10 hairs extends to the front from the left and right of the pupil, each hair of the eyelashes 10 smoothly enters the application part 5 and can apply a large amount of the application liquid.

(Configuration of manufacturing method of liquid applicator)
Next, the manufacturing method of a liquid applicator is demonstrated based on FIG.

[Formation of coated part]
In the case of this embodiment, between the core material 2 of the stainless wire bent so as to have a thickness of 0.1 to 2.0 [mmφ], a plurality of brush fibers made of brush fiber material in the extending direction In a state where the materials 3 are sandwiched so as to be arranged (FIG. 6 (a)), by applying a twisting process to the core material 2, the brush bristle material is linearly outwardly centered on the twisted core material 2. 3 is protruded, and a large number of brush bristle materials 3 are provided radially around the core material 2 (FIG. 6B).

  As the bristle material 3 made of a large number of brush fiber materials, one having one end sharpened like a needle or both ends sharpened like a needle may be used. As the brush fiber material, a fiber material of a synthetic resin material (nylon, tetron, polyester, polypropylene, etc.) of 0.028 to 0.3 [mmφ] can be used, and the material and size of the core material 2 and the brush hair material 3 are large. The shape and the like can be freely selected according to the intended use.

[Groove formation in the direction along the axis of the core]
A groove 6 having a predetermined width in a predetermined direction is formed in the application portion 5 by bringing the brush bristle material 3 close together. In this embodiment, the groove 6 in the direction along the axis of the core material 2 is formed. In a state where a large number of brush bristle materials 3 are provided radially around the core material 2, when viewed from the core axis direction of the core material 2, the large number of brush bristle materials 3 have a perfect circle shape. Four groove forming jigs 50 are inserted into the brush bristle material 3 in the direction of the core material 3 (FIG. 6C), and the radial brush bristle material 3 is used as the core material by using the four groove shaping jigs 50. 2 are gathered so as to be centered, and current is passed through the four groove forming jigs 50 to generate Joule heat and heat, and the collected radial brush bristle material 3 is pressed and heated into a flat plate shape ( FIG. 6 (d)). Thus, the application part 5 formed by forming a large number of brush bristle materials 3 in a flat plate shape along the core axis direction of the core material 2 by pressure heating is formed. The application portion 5 is formed at a symmetrical position with the core material 2 as the center, and a groove 6 is formed between the brush bristle materials 3 formed at the symmetrical position along the core axis direction with the core material 2 as the center. Is done.

  In this embodiment, the radial brush bristle material 3 collected by generating Joule heat is pressurized and heated in a bundle by passing an electric current through the groove forming jig 50. The material 3 may be pressed to form a bundle, or the radial brush bristle material 3 is softened and bent by heating the base of the brush bristle material 3 in a state where the radial brush bristle materials 3 are collected. May be bundled.

  Further, in a state where the radial brush bristle materials 3 are gathered together, the base of the brush bristle material 3 is irradiated with ultrasonic waves or high frequencies, and the brush bristle materials 3 are plastically deformed by the ultrasonic waves or high frequencies. Thus, the base of the brush bristle material 3 may be bent so that the radial brush bristle material 3 is bundled.

[Groove formation in a direction perpendicular to the axis]
In this embodiment, the formation of grooves in the direction orthogonal to the axis will be described with reference to FIGS. FIG. 7 is a view showing a groove forming jig, and FIG. 8 is a view showing grooves in a direction orthogonal to the axis. The application portion 5 has a radial brush by holding a groove forming jig 51 on the core 2. A groove 6 is formed in the direction perpendicular to the axis centering on the core material 2 by bringing the bristle material 3 closer.

  The groove forming jig 51 is constituted by a two-part mold, and the two-part molds 51A and 51B are formed inside by the lumens 53A and 53B when the mold mating surfaces 52A and 52B are overlapped. An annular crest and an annular trough sequentially follow the longitudinal direction of the arrow a on the inner wall surface of the cylindrical lumen.

  In order to form the groove forming jig 51, semi-circular convex portions 54A and 54B are sequentially formed at predetermined intervals in the vertical direction on the two-part dies 51A and 51B, respectively. The semicircular concave portions 55A and 55B are formed so as to be sandwiched between the adjacent semicircular convex portions 54A and 54B.

  In the above configuration, when the two-part dies 51A and 51B are overlapped and subjected to the thermal processing, the application unit 5 shown in FIG. 8A is sandwiched between the two-part dies 51A and 51B.

  At this time, the brush bristle material 3 of the application part 5 is subjected to thermoplastic processing corresponding to the shape by the convex parts 54A and 54B and the concave parts 55A and 55B formed in the inner cavities of the two-part dies 51A and 51B. .

  As a result, as shown in FIG. 8B, the brush bristle material 3 has an annular groove 6 corresponding to the convex portions 54A and 54B and outwards corresponding to the concave portions 55A and 55B in the longitudinal direction a. It is possible to form the liquid coating portion 5 having an annular brush bristle material 3 protruding in the shape of

[Groove formation in a direction crossing the axis diagonally]
In this embodiment, the formation of grooves in the direction crossing the axis in the oblique direction will be described with reference to FIG. This application part 5 is manufactured (FIG. 9A). As shown in FIG. 9B, a coil spring-shaped groove forming jig 53 having a pitch P2 in the longitudinal direction a is applied to the application part 5. Is prepared, and the groove forming jig 53 is fitted into the application part 5 as shown in FIG.

  Here, the groove forming jig 53 is formed by winding a metallic wire in a string shape, and the pitch P2 thereof is larger than the pitch P1 (FIG. 9A) of the brush bristle material 3 of the application unit 5, and (FIG. 9 (d)), a value corresponding to the groove 6 to be formed on the outer peripheral surface of the brush bristle material 3 is selected. Further, the thickness D1 of the wire rod of the groove forming jig 53 is selected to be a value corresponding to the vertical width of the groove 6 to be formed on the outer peripheral surface of the brush bristle material 3.

  As shown in FIG. 9C, when the groove forming jig 53 is fitted to the application part 5, among the brush bristle materials 3 protruding outward from the core material 2 of the application part 5, the groove forming treatment is performed. The bristle material 3 positioned between the wire rods of the tool 53 passes through between the wire rods of the groove forming jig 53 without being affected by the forming operation by the groove forming jig 53 (that is, without receiving interference). Protruding.

  On the other hand, among the brush bristle materials 3 that protrude outward from the brush bristle material 3 of the application unit 5, the brush bristle material 3 that contacts (that is, interferes with) the wire rod 53 </ b> A of the groove forming jig 53 is the wire rod. It is deformed by the interference surface of 53A and bent to a position where the interference is escaped. As a result, it protrudes outward through the wire 53A.

  Thus, the tip portions of the brush bristle material 3 of the application part 5 in the state in which the groove forming jig 53 is fitted are respectively positioned between the position protruding outward from the core material 2 and the wire 53A of the groove forming jig 53. Based on the positional relationship, the protruding state is formed so as to protrude outward through the gap between the wire rods of the groove forming jig 53.

  As shown in FIG. 9C, the application part 5 in a state in which the groove forming jig 53 is fitted is put in a separate heat processing apparatus, and a current is passed through the wire of the groove forming jig 53 to thereby apply the wire. To generate Joule heat.

  In this heat-processed state, the brush bristle material 3 of the application portion 5 is made of thermoplastic synthetic resin material, thereby causing thermoplastic deformation, whereby the wire 53A of the groove forming jig 53 is spirally formed. Based on the fact that the wire 53A is caught, a forming process is performed so that the spiral shape of the wire rod 53A leaves a trace of folding on the outer peripheral portion of the brush bristle material 3 of the application portion 5.

  After the forming process, when the groove forming jig 53 is removed from the application portion 5, as shown in FIG. 9D, the wire rod of the groove forming jig 53 is formed on the outer peripheral portion of the application portion 5 made of the brush bristle material 3. Traces by 53A are formed as grooves 6 that obliquely cross the axis of the core 3.

  As described above, the application portion 5 is processed with the groove forming jig 53 to form the plurality of grooves 6 extending radially around the core material 2 by bringing the radial brush bristle material 3 closer to the application portion 5 and forming the groove after processing. By removing the jig 53, the groove forming jig 53 is not attached to the application part 5.

  In the groove forming jig 53 of this embodiment, a metal wire is wound in a string shape, but a heat-resistant resin thread, or a heat-resistant cotton thread, silk thread, wool thread or the like is wound, or a plastic spring or a metal spring is wound. A winding configuration may be used. These members are wound and, for example, heat-processed at 170 ° C. for 1 minute, 150 ° C. for 3 minutes, and 250 ° C. for 30 seconds.

[Processing to spread hair material randomly and its tip at random]
"When having a groove along the axis"
The process which spreads the brush bristle material 3 which gathered, and expands the front-end | tip randomly is demonstrated based on FIG.10 and FIG.11. In this embodiment, the tip of the brush bristle 3 of the liquid applicator 1 in which the groove 6 in the direction along the axis of the core material 2 is formed in the applicator 5 is separated using the bristle forming jig 60, and In this configuration, the tip is randomly expanded. The bristle forming jig 60 includes a deformation processing unit 61 that deforms the brush bristle material 3 and a heater 62 that heats the deformation processing unit 61, and the deformation processing unit 61 and the heater 62 are disposed inside the case 63. .

  The deformation processing unit 61 includes a cylindrical body 61a, a central hole 61b, and a linear body 61c that extends radially from the central hole 61b toward the cylindrical body 61a. The core material 2 of the application part 5 is inserted from the center hole 61b, the application part 5 is moved back and forth in the axial direction, moved in the direction orthogonal to the axial direction, and rotated to rotate the brush bristle material applied by the application part 5. 3 is distributed by the linearly extending wire body 61c, the tip of the brush bristle material 3 comes into contact with the cylindrical body 61a, bends, and is heated in this state. By taking out the core material 2 of the application part 5 from the center hole 61b, the brush bristle material 3 is processed in pieces and the tips thereof are randomly expanded.

  When the brush bristle material 3 of the application part 5 is shortened, the tip 3a of the brush bristle material 3 comes into contact with the cylindrical body 61a and bends, and the tips 3a of the brush bristle materials 3 adjacent to each other across the groove 6 contact each other. It becomes the structure which does not (FIG. 11 (a)). When the bristle material 3 of the application section 5 is lengthened, the tip 3a of the brush bristle material 3 comes into contact with the cylindrical body 61a and bends, and the tips 3a of the brush bristle materials 3 adjacent to each other across the groove 6 come into contact with each other. (FIG. 11B).

“When having a groove perpendicular to the axis”
This embodiment is shown in FIG. 12, and the tip 3a of the brush bristle material 3 of the liquid applicator 1 in which a groove in the direction perpendicular to the axis of the core material 2 is formed in the applicator 5, and the bristle material forming jig 62 are used. The brush bristle material 3 is used in a configuration in which the brush bristle material 3 is broken and its tip is randomly expanded.

The bristle forming jig 62 has a large number of wire rods 62a in the patch forming part 62A, and the bark forming part 62A is heated by the heater 62b. The applicator 5 of the liquid applicator 1 is pressed against the patch forming part 62A, and the applicator 5 is rotated and moved back and forth in the axial direction, so that the brush bristle material 3 is loosened and its tip is randomly spread. Processing.

  If the brush bristle material 3 of the application part 5 is made to contact a little in the random forming part 62A, the tip 3a of the brush bristle material 3 comes into contact and bends slightly, and the brush bristle material 3 adjacent to the groove 6 is separated. The tips 3a of the two are not in contact with each other. Further, if the brush bristle material 3 of the application unit 5 is in contact with the random forming part 62A, the tip 3a of the brush bristle material 3 comes into contact with a large amount and bends. The tip 3a of the material 3 is in contact with each other.

“When having a groove that crosses the axis diagonally”
This embodiment is shown in FIG. 13, and the tip 3a of the brush bristle material 3 of the liquid applicator 1 in which the groove 6 in the direction crossing the axis of the core material 2 in the oblique direction is formed in the application part 5 is used for the hair material molding treatment. This is a configuration in which the brush bristle material 3 is processed using the tool 63 so that the brush bristle material 3 is separated and its tip is randomly expanded.

  The bristle forming jig 63 has a large number of wire members 63a in the patch forming part 63A, and the patch forming part 63A is heated by the heater 63b. As in the embodiment of FIG. 12, the application unit 5 of the liquid applicator 1 is rotated and moved back and forth in the axial direction, whereby the brush bristle material 3 is separated and its tip is randomly selected. Process to spread.

  The present invention is a liquid applicator suitable for applying a coating liquid such as mascara or hair dyeing liquid to the hair to be applied, such as a mascara brush or a hair dyeing brush, and a method for producing the liquid applicator. Applicable, uniform coating, large volume coating, and fine coating are possible.

DESCRIPTION OF SYMBOLS 1 Liquid applicator 2 Core material 3 Brush bristle material 4 Brush main body 5 Application | coating part 6 Groove 50, 51, 53 Groove forming jig 60, 62, 63 Bristle material forming jig

Claims (5)

A longitudinally extending core composed of two wires twisted together;
Including a brush body having a large number of bristle members protruding radially outward from between the wire rods twisted together around the core material;
The plurality of hair materials constitute an application part that applies the application liquid to the application target hair,
The application part is
A groove having a predetermined width in a predetermined direction is formed by bringing the bristle together,
The liquid applicator characterized in that the gathered bristle material has a configuration in which the tips are separated and the tips thereof are randomly expanded.   The liquid applicator according to claim 1, wherein a tip of the hair material that is randomly spread covers the groove. The groove is
The liquid applicator according to claim 1 or 2, wherein the liquid applicator is formed in a direction along the axis of the core material, a direction orthogonal to the axis, or a direction crossing the axis in an oblique direction. The core extending in the longitudinal direction is
Bend along the eyelashes, the target hair,
The liquid applicator according to any one of claims 1 to 3, wherein the application unit is configured to apply an application liquid to the eyelashes. A longitudinally extending core composed of two wires twisted together;
Including a brush body having a large number of bristle members protruding radially outward from between the wire rods twisted together around the core material;
The plurality of hair materials constitute an application part that applies the application liquid to the application target hair,
Process the groove having a predetermined width in a predetermined direction by bringing the bristle of the application part closer to the bristle by a groove forming jig,
A method of manufacturing a liquid applicator, wherein the hair material gathered is separated by a hair material forming jig and the tip of the hair material is randomly expanded.