JP2007209778A - Preparation process of liquid applicator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid applicator which can apply a sufficiently concentrated liquid to hair to be coated by an easy application process and can make a service stuff carry out accurate operation easily. <P>SOLUTION: In this preparation process of a liquid applicator, fabric material is arranged by inserting it between two or more core materials 11 and the core material 11 is twisted to obtain brush material to which the fabric material is inserted. Using a gutter-forming tool 31 having a central area-processing space 34 and a ridgeline area-processing space 35 located radially from the central area-processing space 34, the core materials 11 of the brush material are inserted into the central area-processing space 34 and the brush material protruding radially from the core materials 11 is separatively inserted into the ridgeline area-processing space 35 and is heat-treated. This process enables the formation of a large amount-applicable brush section having an application liquid-holding gutter extending longitudinally on the outer surface of brush hair material obtained by the heat treatment. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

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

Conventionally, as this type of liquid applicator, for example, as a mascara brush, as disclosed in Patent Document 1, a device that applies mascara attached to a brush to eyelashes is used. As shown in FIG. 11, the liquid applicator R1 as a mascara brush is taken in and out of the brush body R6 provided at the tip of the shaft R5 fixed to the cap R4 from the outlet R3 of the application liquid container R2. The brush body R6 is dipped in a mascara as a coating solution and taken out to the outside.

A cylindrical ironing member R7 made of a rubber material having flexibility is provided inside the outlet R3. When the brush body R6 is pulled out from the outlet R3, the extra sticking around the brush body R6. The coating liquid is squeezed off by a squeezing member R7 having a small inner diameter, so that the coating liquid is not dropped from the brush body 6 and the shaft R5 taken out to the outside.
JP-A-5-228018

  By the way, according to the configuration of FIG. 11, when the brush body R6 is pulled out from the coating liquid container R2 as the ironing member R7, the brush bristle material R6A planted on the core is pressed by the ironing member R7 in the direction opposite to the pulling direction. As a result, the coating solution operates so as to fall in the same direction, and excess coating solution adhering to the periphery of the brush main body R6 is squeezed out, so that a function of preventing the coating solution from dropping off can be achieved.

  In this way, the brush bristle material R6A once falls all at once when it passes through the ironing member R7, but after passing through the ironing member 7, it stands up by its restoring force, so that the coating solution of the brush bristle material R6A stands up. The coating solution remains attached around.

However, since the amount of the application liquid adhering to the surface of the brush bristle material R6A is small, the amount of the application liquid that can be applied to the eyelashes is insufficient, and the user must repeat the application operation five times or six times. As a result, a thick coating solution cannot be applied.
The present invention has been made in consideration of the above points, and intends to propose a method of manufacturing a liquid applicator having a brush configuration that can apply a sufficiently thick application liquid to an application target hair by an easy application operation. To do.

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

The invention according to claim 1 comprises a brush material in which a fiber material is folded by twisting the core material after arranging the fiber material between a plurality of core materials,
Using a groove forming jig having a central processing space and a radial ridge line processing space from the central processing space,
While passing the core material of the brush material through the center processing space, the brush material protruding radially from the core material is inserted and divided so as to divide the ridge line processing space, and heat-treated,
A method for producing a liquid applicator, comprising forming a large amount of application brush portions having an application liquid holding groove extending in a vertical direction on an outer surface of a brush bristle material obtained by the heat treatment.

  According to a second aspect of the present invention, the tip of the brush material protrudes from the groove forming jig, and the coating material extends in the longitudinal direction on the outer surface of the brush bristle material at the tip of the mass application brush portion. 2. The method for producing a liquid applicator according to claim 1, wherein a small amount of application brush portion having no liquid holding groove is formed.

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

  In the first aspect of the present invention, it is possible to easily provide a large amount of application brush portion having a coating liquid holding groove extending in the longitudinal direction on the outer surface of the brush bristle material. When the liquid applicator is pulled out, a large amount of the application liquid left in the application liquid holding groove is held, and a thick application liquid can be applied to the application target hair by an easy application operation.

  In invention of Claim 2, a small amount application | coating brush part can be easily provided in the front-end | tip of a large amount application brush part, and application | coating operation | movement of a detail can be easily performed to the hairline and lower eyelash by a small amount application brush part. it can.

Hereinafter, an embodiment of a method for producing a liquid applicator according to the present invention will be described in detail with reference to the drawings.
(1) 1st Embodiment The liquid applicator 1 of FIG. 1 shows 1st Embodiment, and as shown to FIG. 1 (A), it is a hand as a whole external appearance shape at the front-end | tip of the shaft 2. As shown in FIG. The brush body 3 has a substantially circular shape with a cross section that tapers from the tip to the tip.
The brush body 3 includes a large amount application brush portion 4 for applying a mascara made of a coating solution to the eyelashes made of application hair, and a small amount application brush that is provided on the tip side of the large amount application brush portion 4 and that thinly applies the application solution. Part 5.

  As shown in FIG. 1B, the large amount application brush portion 4 includes one or a plurality of (six in this case) application liquid holding grooves 13 in the brush bristle material 12 planted in the core material 11. It is formed to reach the material 11 and to go in a direction along the core material 11.

  In the case of this embodiment, the brush body 3 is sandwiched between two stainless wire materials having a thickness of 0.1 to 2.0 [mmφ] so that a large number of brush fiber materials are arranged in the extending direction. In this state, the two wire rods were twisted to plant the hair so that the brush bristle member 12 protrudes linearly outwardly with the core material 11 made of the two twisted wire rods as the center. It has a configuration.

  Thus, the large amount application brush portions 4 are adjacent to each other because the six application liquid holding grooves 13 are formed in the brush bristle material 12 formed of a group of brush fiber materials protruding radially from the core material 11. The brush bristle material 12 sandwiched between the two coating liquid retaining grooves 13 forms six brush bristle material ridges 14 extending along the extending direction of the core material 11.

  On the other hand, the coating liquid holding groove 13 sandwiched between the brush bristle ridge line portions 14 forming the ridge lines forms six valleys extending along the extending direction of the core material 11. Yes.

  On the other hand, the full amount corresponding to the application liquid holding groove 13 is not formed in the small amount application brush portion 5, and the small amount application brush portion 5 is shown in FIGS. 1 (C) and (D). As described above, the brush bristle material 12 is configured to radially protrude outwardly from the core material 11 as a center.

  In the above configuration, when the liquid applicator 1 is pulled out from the state of being inserted into the application liquid container, the brush main leave 3 is generally squeezed by the ironing member of the application liquid container. As shown in FIG. 2A, the coating solution holding groove 13 of the coating brush unit 4 holds the coating solution 15.

  In this state, when the brush main holiday 3 is squeezed by the squeezing member of the coating liquid container, the brush bristle material 12 is once tilted from the root side (that is, the shaft 2 side) toward the tip side, and then squeezed. When it passes through the member and moves outside, the operation of restoring the standing state by its elasticity causes the coating liquid held between the brush bristle materials 12 to be squeezed off and around the brush bristle material 12. The coating solution is attached.

  In this way, the brush bristle material 12 forming the brush bristle material ridge part 14 is subjected to a squeezing operation, whereas the coating liquid retaining groove 13 of the brush body 3 is a valley between the brush bristle material ridge line parts 14. The coating solution 15 that has entered the coating solution holding groove 13 in the coating solution container is not completely removed by scouring, and the remaining coating solution 15 is applied without being squeezed off. The liquid holding groove 13 is held (thus, a large amount of coating liquid is held).

  Thus, a large amount of the application brush portion 4 in the brush body 3 is taken out from the application solution container in a state where a large amount of the application solution is held in the application solution holding groove 13.

  On the other hand, in the small amount application brush part 5, since the groove | channel like the application liquid holding groove 13 of the large amount application brush part 4 is not formed, the application liquid which existed between the brush bristle materials 12 is squeezed off by the ironing member. As a result, the coating liquid adheres to the periphery of each brush bristle material 12 (thus, a small amount of coating liquid is retained).

  Therefore, the user of the liquid applicator 1 uses the eyelashes while rotating the brush bristle material 12 of the large amount application brush portion 4 holding a large amount of the application liquid in the brush body 3 as indicated by an arrow a in FIG. If the operation 20 is performed, the coating liquid 15 held in the coating liquid holding groove 13 can be applied in a thick application state in which the eyelashes 20 adhere to the eyelashes 20 by directly contacting the eyelashes 20. .

  If the user continues to rotate the brush body 3 continuously, the application liquid 15 held in the adjacent application liquid holding groove 13 is further applied to the eyelashes 20. By applying, a thick coating solution can be applied to the eyelashes 20 as necessary.

  Thus, if the application operation is performed using the large amount application brush portion 4 of the brush body 3, the user can apply the application liquid having a concentration according to his / her preference to the eyelashes 20 by performing only one rotation application operation. it can.

  Accordingly, as shown in FIG. 4, the brush bristle material 12 of the brush bristle material ridge line part 14 of the large amount application brush part 4 operates to scrub the eyelashes 20, so that a plurality of eyelashes 20 are gathered. There is no such thing, and it is possible to perform a correction operation for each eyelash 20 so as to dilute the thickly applied coating solution.

  Further, as shown in FIG. 5, if the user performs an application operation on the hairline of the eyelashes 20 or the lower eyelashes 22 using the small amount application brush portion 5 of the brush body 3, the brush bristle material 12 of the small amount application brush portion 5. Since only a small amount of the application liquid is held, if the eyelash 20 or the lower eyelash 22 is rotated, the application liquid can be applied to the details of the eyelash 20 or the lower eyelash 22.

  According to the above configuration, the user of the liquid applicator 1 can apply the dark coating liquid to the eyelashes 20 by simply rotating the eyelashes 20 once, and then dilute the thick coating liquid. Can be operated.

In addition, if the small amount application brush part 5 of the front-end | tip part is used, the user can perform detailed application | coating operation to the hairline of the eyelashes 20 or the lower eyelashes 22 easily.
(2) Second Embodiment FIG. 6 shows the second embodiment, and the liquid applicator 25 has a brush body 3X as shown in FIG. 1 has the same configuration as that in which the small amount application brush portion 5 at the tip is omitted.

  Thus, according to the liquid applicator 25 of FIG. 6, as described above with reference to FIGS. 2 to 3, when the liquid applicator 25 is pulled out of the application liquid container, the brush bristle material 12 is squeezed by the ironing operation by the application liquid container. The brush bristle material ridge line portion 14 formed by squeezing the coating liquid into a state of holding a small amount of the coating liquid, whereas the coating liquid holding groove 13 forming the valley portion A large amount of the coating liquid remaining without being squeezed off is retained.

Therefore, a large amount of coating solution can be applied to the eyelashes using a large amount of coating solution held in the coating solution holding groove 13, and concentrated on the eyelashes using the brush bristle material 12 adjacent to the coating solution holding groove 13. It is possible to realize a liquid applicator that can perform a correction operation for thinning the applied coating liquid by a single coating operation.
(3) Third Embodiment In the large quantity application brush portion 4 of the embodiment of FIGS. 1 and 6, the case where the application liquid holding groove 13 is formed deep enough to reach the vicinity of the core material 11 has been described. However, instead of this, as shown in FIG. 7, an intersection region 13 </ b> X (shown by a dotted line) in which the base portions of the brush bristle material 12 forming the brush bristle material ridge line portion 14 intersect with each other around the core material 11. And a coating solution holding groove 13Y that is shallow enough to reach the crossing region 13X is formed.
According to the configuration of FIG. 7, when the viscosity of the coating solution entering the coating solution holding groove 13 </ b> Y is small, the coating solution contacts the brush bristle material 12 constituting the crossing region 13 </ b> X, and the contact portion is the brush bristle material 12. As a result, the holding force for the coating liquid in the coating liquid holding groove 13Y increases.

Therefore, even if the viscosity of the coating solution is small, it is possible to effectively prevent the coating solution from dropping from the coating solution holding groove 13Y.
(4) Processing of application liquid holding groove The application liquid holding groove 13 of the large amount application brush portion 4 of the brush body 3 (FIG. 1) and 3X (FIG. 6) and the application liquid holding groove 13Y of FIG. The groove forming jig 31 as shown in FIG.

  The groove forming jig 31 has a configuration in which six heating fittings 33 having a fan-shaped cross section are erected on a base 32.

  The heating metal fittings 33 are radially extended from the central processing space 34 between the heating metal fittings 33 so that the six bristle hair edge portions 14 are formed by the brush bristle material 12 of the large amount application brush part 4. The ridge line processing space 35 is formed.

  In the case of this embodiment, the heating metal fitting 33 is heated by an electric heater that performs a heating operation via a power supply connecting member 36 provided on the base 32.

  In the case of this embodiment, the brush bodies 3 and 3X are 0.05 to 0.3 [mmφ] in the longitudinal direction between two stainless wire rods having a diameter of 0.1 to 2.0 [mmφ]. Of the synthetic resin material (nylon, Teflon (registered trademark), polyester, polyethylene, etc.) are arranged so as to sandwich the material, and the wire material is twisted to process the brush material 37 having a structure in which the fiber material is folded. The

  As shown in FIG. 9, the brush material 37 has a fiber material tip projecting radially from the core material 11 so as to pass the core material 11 through the central processing space 34 from above the groove forming jig 31. The portion is bent so as not to hit the processing metal fitting 33 and is inserted into the ridge line processing space 35.

  In the case of the embodiment of FIG. 9, the case where the liquid applicator 1 of FIG. 1 is molded is shown. At this time, the tip of the brush material is used for forming a groove so as to form a small amount of application brush part 5. It protrudes upward from the jig 31.

  Thus, when the setting of the brush material is completed, heat treatment is performed using the processing temperature and processing time shown below as processing conditions.

Processing temperature Processing time 400 ° C to 500 ° C 1 second to 5 seconds 300 ° C to 400 ° C 5 seconds to 20 seconds
200 ° C. to 300 ° C. 20 seconds to 360 seconds 100 ° C. to 200 ° C. 360 seconds to 3600 seconds 70 ° C. to 100 ° C. 6 hours to 24 hours
As a result of this heat treatment, the synthetic resin material constituting the brush material 37 is thermoplastically deformed so that the fiber material passing through the ridge line processing space 35 extends along the core material 11 so as to avoid the heating metal fitting 33. The brush bristle material ridge line part 14 is molded so as to be opposed to the ridge line across the valley part.

  At the same time, a portion of the heating metal fitting 33 through which the brush material 37 does not pass is molded as a coating liquid holding groove 13 that becomes a trough between adjacent brush bristle material ridges 14.

  In the groove forming jig 31 of FIG. 8, the heating metal fitting 33 is heated by an electric heater. Instead of this, the groove forming jig 31 is dried as a whole without providing an electric heater. Even if a processing method of heating in a heating chamber such as a furnace is used, the same molding process as described above can be performed.

  In addition, 65 [° C.] ~! For a groove forming jig that does not have an electric heater. If the heat treatment is continued for 6 to 48 hours in an atmosphere of water vapor or hot water at 00 [° C.], the fiber material of the brush material 37 can be plastically processed, thereby forming the liquid-coated shell having the coating liquid holding groove 13. be able to.

(5) Other Embodiments (a) In the above-described embodiment, the stage where the six coating liquid holding grooves 13 are formed around the core material 11 has been described. However, the number of the coating liquid holding grooves 13 is described. However, the present invention is not limited to this, and one or two or more may be formed.
(B) In the above-described embodiment, the overall shape of the brush bodies 3 and 3X is a circular cross-section that tapers from the hand toward the tip. Not limited to a cylindrical shape with the same diameter as it goes to the tip, a Tyco shape that becomes thicker once it gets thicker as it goes to the tip, a gourd shape whose middle part becomes a little thinner, or a triangular cross section The present invention can also be applied to various shapes.
(C) In the above-described embodiment, the case where the brush bodies 3 and 3X are linear along the extending direction of the shaft has been described. However, the shape is not limited to such a shape, and for example, the brush bodies 3 and 3X are curved along the shape of the eyelashes. As such, it may be configured to have various curved shapes.
(D) In the above-described embodiment, the case where the cross-sectional shape of the coating liquid holding groove 13 is formed in a V shape has been described. However, the present invention is not limited to this, and the cross-sectional U shape in which the central portion is rounded. The brush bristle material 12 forming the brush bristle material ridge line portion 14 is substantially linear and radial. Protrusively.
(E) In the embodiment of FIGS. 8 and 9, the case where a fan-shaped cross section is applied as the heating fitting 33 has been described. However, the shape of the heating fitting 33 is not limited to this, and FIG. ) As shown in FIG. 10 (B), as shown in FIG. 10 (B), as shown in FIG. 10 (C), as shown in FIG. 10 (C), as shown in FIG. Various shapes such as a substantially rectangular shape as shown in FIG.
(F) In the above-described embodiment, the case where the present invention is applied to a mascara brush has been described. However, the present invention is not limited to this, and for example, a liquid used in partial dyeing as a brush for hair dyeing is essential. This method can be widely applied when applied to the hair to be applied that is to be applied.
(G) In the above-described embodiment, the coating liquid holding grooves 13R and 13Y are formed in a direction along the core material 11 (and therefore substantially linear). It may be bent (oblique or meander), or it may be wide at the base and narrowed at the tip (or vice versa, narrow at the root and wide at the tip). It is only necessary to extend in the vertical direction (and hence the direction of squeezing).

  The present invention is particularly applicable to a method of manufacturing a liquid applicator for applying a coating liquid such as a mascara or a hair dyeing solution to a hair to be applied, such as a mascara brush or a hair dyeing brush. It can be used for.

(A), (B), (C) and (D) are perspective views showing a liquid applicator according to the first embodiment of the present invention, a sectional view taken along line A1-A1 in (A), and B1 in (A). -B1 sectional drawing and a side view which shows the front end surface of (A). (A) And (B) is sectional drawing which shows the holding | maintenance bear of a coating liquid when a liquid application tool is extracted from a coating liquid container. It is a basic diagram with which it uses for description of mass application | coating operation | movement. It is an approximate line figure used for explanation of amendment operation. It is an approximate line figure used for explanation of detailed correction operation. (A), (B), and (C) are the perspective views which show the liquid applicator of 2nd Embodiment, A2-A2 sectional drawing of (A), and the side view which shows the tip metastructure of (A). . It is sectional drawing which shows the mass application brush part of 3rd Embodiment. It is a perspective view which shows the jig | tool for groove | channel formation. It is a perspective view with which it uses for description of setting operation of a brush raw material. (A), (B), (C) and (D) are sectional views showing a modification of the heating metal fitting. It is a perspective view which shows the conventional liquid applicator.

Explanation of symbols

1, 25, R1 Liquid applicator 2 Shaft 3 Brush body 4 Large amount application brush part 5 Small amount application brush part 11 Core material 12 Brush bristle material 13 Application liquid holding groove 14 Brush bristle material ridge part 15 Application liquid 20 Eyelash 31 For groove formation Jig 32 Base 33 Heating bracket 34 Central processing space 35 Edge line processing space 36 Power connection member 37 Brush material

Claims (2)

After arranging the fiber material between a plurality of core materials, configure a brush material in which the fiber material is folded by twisting the core material,
Using a groove forming jig having a central processing space and a radial ridge line processing space from the central processing space,
While passing the core material of the brush material through the center processing space, the brush material protruding radially from the core material is inserted and divided so as to divide the ridge line processing space, and heat-treated,
A method for producing a liquid applicator, comprising forming a large amount of application brush portion having an application liquid holding groove extending in a vertical direction on an outer surface of a brush bristle material obtained by the heat treatment.   The small amount application brush which does not have the said application liquid holding groove | channel which makes the front-end | tip part of the said brush material protrude from the said jig | tool for groove | channel formation, and extends to the outer surface of the said brush bristle material at the front-end | tip of the said high-volume application brush part The method for producing a liquid applicator according to claim 1, wherein a part is formed.