JP2002325622A - Hair dye applicator brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To color the whole hair including hair roots with a simple operation, and to improve a sense of combing as well. SOLUTION: A hair dye applicator brush 1A comprises a brush section 4 where comb teeth 3 are planted inline, and a container 2 for containing hair dye. Each comb tooth 3 which is formed in a plate shape is provided with a inside fluid duct 7 for the hair dye, and has a dispensing orifice 9 for the hair dye opened on a surface which faces an adjacent comb tooth. Besides, a rib 15 is mounted on the surface extending in the width direction between the dispensing orifice 9 and the basal face 8 in the comb tooth, or a groove 17 is formed on the surface in the direction from the dispensing orifice 9 to the distal end portion 6 of the comb tooth 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair dye applying brush suitable for applying a hair dye to the whole hair including the root of the hair.

[0002]

2. Description of the Related Art As shown in FIG. 6, a brush part 4 having comb teeth 3 arranged in a row in a container 2 for accommodating a hair dye is mounted as a hair dye applying brush 1 via a connecting part 5. Is known. The comb tooth 3 has a flat plate-like shape with a tapered tip 6, and a liquid guide channel 7 communicating with the inside of the container 2 is formed inside the comb tooth 3. A hair dye outlet 9 is formed on the side surface of the comb teeth 3 (the surface facing the adjacent comb teeth).

According to this hair dye applying brush 1, the hair dye is discharged from the discharge port 9 of the comb teeth 3 by pressing the container 2, and the hair dye is applied to the hair, while the hair dye is applied to the hair. The hair dye can be easily applied to the hair as compared with the case where the hair dye container and the brush are separated from each other.

[0004]

However, in the conventional hair dye applying brush 1, the hair dye A discharged from the discharge port 9 spreads only concentrically between the adjacent comb teeth 3, so that the hair Fig. 7 to facilitate the supply of hair dye to the root of
When the position of the discharge port 9 is moved toward the tip end of the comb teeth 3 as shown in (a), the amount of the hair dye A held between the comb teeth 3 decreases. for that reason,
A problem occurs in that the amount of work (number of combings) required for hair dyeing increases.

On the other hand, when the discharge port 9 is moved toward the comb tooth base surface 8 side as shown in FIG. 1B, the amount of the hair dye A held between the comb teeth 3 increases, but the hair dye A is held between the comb teeth 3. Since the distance between the hair dye A and the tip 6 of the comb teeth 3 increases, it becomes difficult to apply the hair at the root.

As described above, in the conventional brush for applying a hair dye, it is impossible to simultaneously improve the ease of applying the hair to the root of the hair and the reduction of the work required for the hair dye.

On the other hand, the present invention provides a hair dye application brush which can dye the root of the hair and the whole hair with a simple operation and can extremely reduce the adhesion of the hair dye to the scalp. The purpose is to do.

[0008]

SUMMARY OF THE INVENTION The present inventor has proposed a hair dye application brush in which comb teeth having hair dye outlets are arranged in a row, and a rib is provided between the outlet and the comb tooth base surface. By providing or forming a groove from the discharge port toward the tip of the comb teeth, the hair dye discharged from the discharge port can be suppressed from spreading to the base side of the comb teeth, and can be directed to the tip side. Therefore, it has been found that the hair dye can be efficiently applied to the entire hair including the root of the hair, and that the feeling of combing is not impaired.

That is, the present invention relates to a brush for applying a hair dye comprising a brush portion in which comb teeth are arranged and a container for accommodating the hair dye, wherein the comb teeth have a plate-like shape and are internally dyed. It has a liquid guide path for the hair agent, has a hair dye outlet on the surface facing the adjacent comb teeth, and a rib extending in the width direction of the comb tooth between the outlet and the comb tooth base surface. Provided hair dye application brush provided.

Further, the present invention is a brush for applying a hair dye comprising a brush portion in which comb teeth are arranged and a container for accommodating the hair dye, wherein the comb teeth have a plate shape and are internally dyed. A hair dye application having a hair guide path, a hair dye outlet on the surface facing the adjacent comb teeth, and a groove provided from the outlet to the tip of the comb teeth. Provide brushes for

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings. In the drawings, the same reference numerals indicate the same or equivalent components.

FIG. 1 is a perspective view (a) of a brush 1A for applying a hair dye according to an embodiment of the present invention, a cross-sectional view (b) of the brush section, and a cross-sectional view (y) of a yy section. . FIG. 2 is an enlarged view of the brush unit.

The brush 1A for applying a hair dye comprises a container 2 for accommodating a hair dye, a brush portion 4 having comb teeth 3 arranged in rows, and a connecting portion 5 for connecting the container 2 and the brush portion 4. I have.

The container 2 is made of a flexible material from which a hair dye can be extruded by pressing. As such a flexible material, for example, a material having a flexible outer layer as disclosed in JP-A-2000-16470 and an inner layer releasably laminated on the outer layer is used. Preferably, air is introduced between the outer layer and the inner layer after the container is pressed, and the outer layer is restored to the shape before the pressing, and the inner layer is peeled and contracted and deformed. This eliminates the need for a dip tube, and allows the container 2 to be used either upright or inverted.

Each of the comb teeth 3 has a flat plate-like outer shape in which the width of the tip 6 is tapered and the width a is larger than the thickness b. Here, the width a and the thickness b are set to 10 to 20 mm and the thickness b to 1 to 4 m from the point that the hair dye can be held on comb teeth in an appropriate amount without impairing the combability.
m is preferable. Also, regarding the tip portion 6,
The length of the portion L4 having a width c of 5 mm or less is at least 1 mm.
The above is preferable from the viewpoint of improving the feeling of combing and reducing the adhesion of the hair dye to the scalp.

A discharge port 9 whose center is located at a distance L1 from the base surface 8 of the comb tooth is provided on the surface of the comb tooth facing the adjacent comb tooth. A rib 15 extending in the width direction of the comb tooth 3 is provided at a distance L2 toward the comb tooth base surface 8 side. When the ribs 15 are provided in this manner, the flow of the hair dye A discharged from the discharge port in the direction of the comb tooth base surface 8 is suppressed, and the hair dye A is transferred to the comb tooth as shown by the arrow in FIG. 3 can be directed toward the tip 6. Therefore, the hair dye A can be sufficiently supplied to the root of the hair. In this case, as shown in FIG. 7A, the formation position of the discharge port 9 is shifted to a position where the hair dye A can be sufficiently held between the comb teeth 3 without excessively approaching the tip end 6 side. Since it suffices, the amount of work required for hair dyeing does not increase. Optimum values of the distance L1 between the comb tooth base surface 8 and the discharge port 9 and the distance L3 from the discharge port 9 to the tip of the comb tooth 3 depend on the liquid properties of the hair dye and the like. Tokyo Keiki Co., Ltd., MODEL ASB10
When the viscosity of the hair dye is 3 Pa · s to 20 Pa · s when measured with a No. 4 rotor at 30 rpm and a measurement temperature of 25 ° C., L1 is set to 14 to 20 mm and L3 is set to 5 to 10 mm.

The optimum value of the distance L2 between the discharge port 9 and the rib 15 is determined by the growth shape of the hair dye discharged from the discharge port 9 (this growth shape is determined according to the shape of the discharge port 9).
For example, when the growth shape of the hair dye is a concentric circle centered on the discharge port 9, it is preferable that L 2 be equal to or less than ／ of the radius R of the concentric circle inscribed in the outer shape of the comb teeth 3.

The height d of the rib 15 is such that the hair dye A is prevented from flowing to the comb tooth base surface 8 while ensuring the feeling of combing.
It is preferably at least 0.2 mm, especially from 0.3 to
It is preferably 0.5 mm. The length L5 of the rib 15 in the longitudinal direction of the comb teeth 3 is preferably 0.5 to 1.5. The interval e between the comb teeth 3 at the position where the rib 15 is formed is preferably 1 mm or more from the viewpoint of improving the combability.

From the rib 15 to the tip 6 of the comb teeth, the thickness b is tapered such that the thickness b gradually decreases toward the tip 6. When the taper is formed in this manner, the hair dye is more easily supplied to the tips 6 of the comb teeth, so that the root of the hair can be surely dyed.

On the other hand, the opening area S of the discharge port 9 is preferably equal to or larger than the area of a circle inscribed in the cross section of the liquid guide path 7 inside the comb teeth 3 in order to obtain a sufficient discharge property. Specifically, for example, it is preferably 1 to 5 mm ² . Preferably, the discharge ports 9 are formed on both side surfaces of all the comb teeth 3 except for the comb teeth 3 at both ends of the brush portion 4.

The connecting part 5 has a liquid guide for the hair dye formed therein, and connects the liquid guide 7 formed inside the comb teeth 3 to the inside of the container 2. The connecting portion 5 may be formed integrally with the container 2 or may be a separate member. In addition, it is preferable in terms of molding that the connecting portion 5 and the brush portion 4 be detachable.

The present invention can take various other forms. For example, the rib 15 extends in the width direction between the discharge port 9 and the comb tooth base surface 8 and can have various shapes as long as it suppresses the flow of the hair dye in the direction of the comb tooth base surface 8. . Therefore, as shown in FIG. 3, the peripheral edge of the ejection port 9 on the comb tooth base surface 8 side and the rib 15 may be continuous. The rib 15
The recess 16 may be formed in place of the taper from the top to the tip 6.

As shown in FIG. 4, the rib 15 may be formed in a V-shape. Also, a groove 17 is formed from the discharge port 9 to the tip 6.
May be formed.

When the groove 17 is formed from the discharge port 9 to the tip 6, the rib 15 may be omitted. In this case, it is preferable that the depth f of the groove 17 from the surface of the comb teeth 3 is 0.3 mm or more, and the width g of the groove 17 is not less than the width of the discharge port 9. Also,
When the groove 17 is formed from the discharge port 9 to the distal end portion 6, as shown in FIG. 5, it is preferable to provide a step 18 extending in the width direction of the comb teeth between the discharge port 9 and the comb tooth base surface 8.

Although the shape of the opening of the discharge port 9 is circular, the shape of the opening is not limited to this and may be rectangular, triangular, or the like.

Each of the comb teeth may be provided with a plurality of liquid guide paths therein to form a plurality of discharge ports. When a plurality of liquid guide paths are provided, different types or colors of agents may be discharged from each liquid guide path. Thereby, it becomes possible to enjoy coloring with a subtle texture.

In order to make the amount of the hair dye discharged from the discharge port 9 equal for all the comb teeth 3, the area of the cross section perpendicular to the flow direction of the liquid guide path 7 in the comb teeth 3 should be It is preferable to increase the width of the comb teeth 3 that are farther from the teeth. Since the change in the discharge amount of the hair dye is greater than the change in the cross-sectional area of the liquid guide path 7 in the comb teeth 3, the degree of freedom in design is kept high by adjusting the cross-sectional area of the liquid guide path 7. In addition, the discharge amount of the hair dye can be easily controlled. In this case, the cross-sectional area of the liquid passage 7 is such that
It may be gradually spread as it gets farther from
The comb teeth 3 may be divided into predetermined groups, and may be expanded for each groove. In addition, in order to make the amount of the hair dye discharged from the discharge port 9 equal for all the comb teeth 3, the cross-sectional area of the liquid guide path in the connecting portion 5 may be increased as the distance from the container 2 increases. Also,
The opening area of the discharge port 9 may be widened as far as the comb teeth 3 far from the container 2.

[0028]

According to the brush for applying a hair dye of the present invention,
The root of the hair and the whole hair can be dyed with a simple operation, a good combing feeling can be obtained, and the adhesion of the hair dye to the scalp can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view (a), an xx sectional view (b), and a yy sectional view (c) of a brush for applying a hair dye of the present invention.

FIG. 2 is an enlarged sectional view of a brush unit.

FIG. 3 is a cross-sectional view of a brush unit according to another embodiment of the present invention.

FIG. 4 is a cross-sectional view of a brush unit according to another embodiment of the present invention.

FIG. 5 is a cross-sectional view of a brush unit according to another embodiment of the present invention.

FIG. 6 is a perspective view of a conventional hair dye application brush (a),
It is the xx sectional view (b) and the yy partial sectional view (c).

FIG. 7 shows the comb teeth of a conventional hair dye application brush.
It is explanatory drawing which shows the relationship between the position of a discharge opening, and the holding amount of a hair dye.

[Explanation of symbols]

 Reference Signs List 1A brush for applying hair dye 2 container 3 comb tooth 4 brush part 5 connecting part 6 tip part 7 liquid guide path 8 base surface of comb tooth 9 discharge port 15 rib 16 concave part 17 groove 18 step

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Keiji Sakamoto 2-1-3 Bunka, Sumida-ku, Tokyo Kao Research Institute

Claims (4)

[Claims] 1. A brush for applying a hair dye comprising a brush portion in which comb teeth are arranged and a container for accommodating the hair dye, wherein the comb teeth have a plate-like shape, and the hair dye is introduced inside. It has a liquid path, has a hair dye discharge port on the surface facing the adjacent comb teeth, and a rib extending in the width direction of the comb tooth is provided between the discharge port and the comb tooth base surface. Hair dye application brush. 2. The hair dye applying brush according to claim 1, wherein the thickness of the comb teeth is gradually reduced from the rib toward the tip of the comb teeth. 3. A brush for applying a hair dye comprising a brush portion in which comb teeth are arranged and a container for accommodating the hair dye, wherein the comb teeth have a plate-like shape, and the hair dye is introduced therein. A hair dye application brush having a liquid path, a hair dye outlet on a surface facing an adjacent comb tooth, and a groove provided from the outlet to the tip of the comb tooth. 4. The hair dye application brush according to claim 3, wherein a step or a rib extending in the width direction of the comb teeth is provided between the discharge port and the base surface of the comb teeth.