JP2003225121A - Hair dying brush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the molding of a brush and enable the use of a first brush part and a second brush part with the same handling feeling by integrally molding the first brush part and the second brush part on the lower surface of a plate-like brush base. <P>SOLUTION: A number of thick first brush pieces 7 are roughly suspended from the lower surface of the plate-shaped brush base 2 except a tip part 4 to form the first brush part 6, a number of thin second brush pieces 10 are closely provided on the lower surface of the tip part 4 to extend obliquely downward to the front to form the second brush part 9, and the inclination of the second brush pieces 10 to the vertical direction that is a die opening direction is set to a value enabling the forced release of the second brush pieces 10 from the die to integrally mold a brush body 1. A handle body 11 extended obliquely upward to the rear is connected to the rear end part of the brush body 1. According to such a structure, the integral molding of the brush body 1 is facilitated, and the convenience of the brush is enhanced. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a hair dyeing brush used for dyeing hair with a creamy hair dye.

[0002]

2. Description of the Related Art As a conventional technique for a hair-dyeing brush used for dyeing hair with a cream-like hair-dyeing agent, as a conventional technique, kaikaihei 6-1
There is a technique disclosed in Japanese Patent No. 5530.

In this prior art, the virtual surface formed by the brush tips of the second brush body is inclined with respect to the virtual surface formed by the brush tips of the first brush body. The base surface on which the brush of the second brush body is formed is inclined with respect to the base surface on which the brush of the first brush body is formed.

In this conventional technique, a virtual surface formed by the first brush body or a virtual surface formed by the second brush body with respect to a base surface formed by the first brush body, or Since the base surface on which the second brush body is configured is inclined, it is easy to dye fine hair such as hairline and rubbing, and it is difficult for the hair dye to adhere to the cheeks. It has the advantage to say.

[0005]

However, in the above-mentioned prior art, the brush of the second brush body is formed by bundling a large number of bristles, which are planted in the extending portion of the brush base. Since it is a fine-bristle body, there is a problem in that it is necessary to assemble a plurality of members to manufacture a brush, which makes the manufacturing procedure and member management troublesome.

Further, since the virtual surface formed by the second brush body is inclined with respect to the virtual surface formed by the first brush body, the virtual surface formed by this second brush body is 1
It will be located outside the extension of the virtual surface formed by the brush body of, so that the brush can not be seen,
It is not always possible to quickly and accurately face the second brush body to details such as hairline and rubbing, and the effect of making it difficult for the hair dye to adhere to the cheeks and ears is not always sufficient. There was a problem that it was not there.

Therefore, the present invention was devised in order to solve the above-mentioned problems in the prior art. A brush main body composed of at least a first brush portion and a second brush portion is used as an ordinary brush. Similarly to the above, it is a technical problem to integrally mold the first brush piece and the second brush piece on the lower surface of the flat plate-like brush stand, thereby enabling simple molding of the brush and The purpose is to be able to use the first brush part and the second brush part according to the same handling sensation.

[0008]

[Means for Solving the Problems] Of the present invention for solving the above-mentioned technical problems, the means for carrying out the invention of claim 1 is such that a large number are provided on the lower surface of the brush base having a substantially rectangular flat plate shape excluding the tip end. The first brush part is formed by sparsely and vertically suspending the thick first brush piece to form a large number of thin second brush pieces on the lower surface of the tip of the brush base densely and obliquely downward and forward. Forming the second brush portion by protruding and setting, the inclination angle of the second brush piece with respect to the vertical direction, which is the mold opening direction, is set to a value at which this second brush piece can be forcefully removed from the injection mold. Setting, constructing a brush body which is an integrally molded synthetic resin product from the first brush portion and the second brush portion, and a handle body extending obliquely rearward and upward at the rear end portion of the brush body. It is in connecting.

According to the first aspect of the present invention, a hair dye is applied to the majority of the hair while combing the hair with the first brush portion in the same manner as in the conventional case, and the hairline or the kneading is performed. For details such as the above, a hair dye is applied by the second brush portion.

The second brush portion is used to apply the hair dye to the details such as the hairline and the rubbing of the hair. Only the second brush part that is doing so can contact the hair.

When applying the hair dye to the details such as hairline and rubbing with the second brush part, the second brush piece of the second brush part is located on the same lower surface of the brush base as the first brush piece. Therefore, it is possible to handle the second brush portion with a handling feeling substantially the same as the handling feeling when using the first brush portion, and therefore even for details that are difficult to see even with a mirror, You can apply the hair dye easily and effortlessly.

Since each of the second brush pieces of the second brush portion has a small thickness, elastic deformation can be reasonably performed to some extent, and therefore, it is possible to force the die removal from the injection molding die.
It can be achieved safely and smoothly.

With respect to the brush base, the first brush piece and the second brush piece
Since the brush pieces are integrally molded, at least the brush main body can be molded by a single injection molding process, which facilitates the molding of the brush.

According to a second aspect of the present invention, in addition to the structure of the first aspect of the invention, a void portion without the first brush piece is provided in a portion of the central portion of the lower surface of the first brush portion over substantially the entire length range. It was formed.

According to the second aspect of the present invention, the hollow portion is used as the pouring and adhering portion of the hair dye on the brush, so that the hair dye can be supplied to the brush by the first brush piece. Can be performed safely and smoothly without being disturbed by, and because the first brush piece will always face the hair dye poured into the cavity from the carding direction,
It becomes easy to apply the hair dye uniformly to the hair.

The invention according to claim 3 is the invention according to claim 1 or 2.
In addition to the configuration of the described invention, a large number of first brush pieces are arranged in a zigzag pattern along the lateral direction.

According to the third aspect of the present invention, since the plurality of first brush pieces are arranged in a zigzag shape along the lateral direction, that is, the carding direction, the first brush piece during the carding operation is formed.
The holding of the hair by means of a brush piece is preferably carried out, which ensures the application of the hair dye to the hair.

According to a fourth aspect of the present invention, in addition to the constitution of the first, second or third aspect of the present invention, the whole hair dyeing brush is integrally molded with block copolymer polypropylene.

According to the invention of claim 4, since the surface has a high gloss, a product having a good appearance can be obtained, and the MFR is large and the spiral flow at a low temperature is large. The second brush piece, which is forced to be removed at the time of mold release, can be satisfactorily molded without causing flaws or defective deformation, and has a good balance between rigidity and impact strength when molded into a brush. Therefore, a stable combing operation can be obtained.

According to a fifth aspect of the present invention, in addition to the configuration of the first, second or third aspect of the present invention, a handle is provided on the brush main body,
It is that it is detachably connected.

According to the invention of claim 5, since the brush body and the handle can be molded separately, each can be molded with a synthetic resin material suitable for its function. The storage device can be made compact, which facilitates carrying and storage.

According to a sixth aspect of the present invention, the brush body is formed of a soft synthetic resin material and the handle is formed of a hard synthetic resin material in addition to the structure of the fifth aspect. .

According to the sixth aspect of the present invention, by molding the brush main body with the soft synthetic resin material, the contact of each brush piece with respect to the scalp becomes softer, and the brush feels better. Also, by gripping the handle with a hard synthetic resin material, the grip of the brush becomes stable.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The brush shown in FIG. 1 to FIG. 5 has a brush main body 1 in which a large number of brush pieces are integrally mounted on the lower surface of a rectangular flat plate-like brush base 2, and a rear end portion of an upper surface of the brush main body 1. The handle body 11 extending obliquely rearward and upward and connected to the handle body 11 is integrally formed of a relatively hard synthetic resin material such as polypropylene resin which is easy to form.

The brush main body 1 has a large number of thick first brush pieces on the lower surface of the brush base 2 in which a ridge-shaped reinforcing edge 3 having a low height is provided around the peripheral edge of the upper surface, excluding the tip 4. 7 are sparsely and vertically suspended to form a first brush portion 6, and a large number of thin second brush pieces 10 are provided on the lower surface of the tip portion 4 of the brush base 2.
Are densely and obliquely extended downward and forward to form a second brush portion 9.

The brush stand 2 has a front cross-sectional shape slightly curved upward in the lateral direction (see FIG. 4) so that the combing operation of the hair can be achieved well, and each first brush piece 7 is formed.
Are hung vertically on the lower surface of the slightly curved brush base 2, so that the distance between the second brush pieces 10 increases as they approach the tip.
Are configured so as to be parallel to each other in consideration of forced die-cutting from the injection mold.

At the central portion of the lower surface of the brush base 2 where the first brush portion 6 is formed, a void portion 8 (see FIG. 3) without the first brush piece 7 is provided over substantially the entire length range. In the illustrated embodiment, the width of the void portion 8 is set to a value suitable for using the two-component hair dye.

The first brush piece 7 to be located around the void portion 8 is provided in order to improve the grip of the hair.
They are arranged in a staggered pattern (see FIG. 3) along the direction toward the void portion 8.

The second brush piece 10 has an inclination angle of about 60 ° (see FIG. 5) with respect to the vertical direction which is the mold opening direction, and the extending tip thereof is located at the tip of the first brush piece 7. The extended tips of the second brush pieces 10 of the row located substantially on the virtual surface and located on the tip side of the brush base 2 are equal to or slightly forward of the tip edge of the brush base 2. The second brush portion 9 makes it possible to favorably apply the hair dye to the details.

The handle 11 is integrally provided on the brush main body 1 at a connecting portion 12 which is raised from the rear end of the upper surface of the brush base 2 and is curved, so that the handle 11 extends obliquely rearward and upward with respect to the brush main body 1. The pattern body 11 is attached to the surface of the portion hanging from the tip of the main body of the pattern body 11 to the upper end of the connecting portion 12.
A plurality of vertical ridge-shaped non-slip members 14 are provided to prevent the fingertips that are gripping the user from slipping unintentionally.

In the first embodiment of the present invention shown in FIGS. 1 to 5, the following materials which are considered to be suitable as a brush material, namely block copolymer polypropylene (trade name: Novatec PP BC03GS), random copolymer polypropylene are used. (Product name: Polypropylene J-Aromar PM9
40M), linear low density polyethylene (trade name, Novatec LL UJ480), high density polyethylene (trade name,
Novattech HD HJ490) was integrally molded and compared.

The brush made of high-density polyethylene has a lack of rigidity as a whole, and the color becomes cloudy, and the second brush piece 10 may be flawed due to excessive removal. In addition, the brush formed of linear low density polyethylene has no problem in releasability at all, but the rigidity is totally insufficient, and the brush formed of random copolymer polypropylene has a little rigidity. Since the second brush piece 10 is slightly flexed and deformed due to lack of sufficient stability, it is difficult to obtain a stable usability.

On the other hand, the brush molded from block copolymerized polypropylene exhibits sufficient rigidity to obtain an extremely stable feeling of use, and also has a high MFR to obtain high moldability. In addition to being capable of low temperature molding, production efficiency can be improved, and the combination of bending elastic modulus and impact strength is well balanced, so that forced punching can be smoothly achieved.

FIG. 6 shows a second embodiment of the present invention in which the brush main body 1 and the handle 11 are formed as separate members, and the brush base 1 of the brush main body 1 is provided at the center of the rear end portion of the upper surface thereof. , Block-shaped first with long front and back and keyways on both sides
The engaging portion 5 is provided, the key engaging with the key groove of the first engaging portion 5 is provided at the lower end opening edge of the connecting portion 12 of the handle 11, and the first engaging portion 5 is provided at the rear opening end. A long square groove-shaped second engaging portion 13 is provided on the front and rear sides of the engaging piece for engaging the rear end edge, and the brush main body 1 and the handle body 11 are separated by the engaging portions 5 and 13. It is removable.

When the brush body 1 and the handle 11 are formed as separate bodies, the brush body 1 is molded with a relatively soft synthetic resin material having good moldability, for example, a soft polyethylene resin, and the handle 11 is formed. It is better to mold with a relatively hard synthetic resin material such as polypropylene resin.

When the brush main body 1 is molded with a relatively soft synthetic resin material, the second brush piece 10 can be easily die-cut, so that defective products due to the die-cutting can be almost eliminated. The inclination angle of the second brush piece 10 can be made larger to increase the ease of use of the second brush portion 9, and the contact of the brush pieces 7 and 10 against the scalp can be made softer, which results in a feeling of use of the brush. Is preferred.

When the handle 11 is molded from a relatively hard synthetic resin material, the stable self-shape-retaining ability of the handle makes it possible to obtain a stable grip of the brush, thereby stabilizing and smoothing the hair. You can comb

[0038]

Since the present invention has the above-mentioned structure, it has the following effects. In the invention according to claim 1, since the first brush portion and the second brush portion are arranged on the same lower surface of the flat plate-like brush stand, both brush portions can be handled with substantially the same handling feeling, and therefore, for example, Even if the hair is not visible with a mirror, the hair dye can be applied accurately and reasonably.

Since the second brush piece is thinned, elasticity can be imparted to the second brush piece, which allows the second brush piece to be safely die-cut, and the brush body can be manufactured. Can be achieved easily, quickly and inexpensively.

According to the second aspect of the invention, the hair dye can be safely and smoothly poured out to the brush, and the hair dye first poured into the void portion can be supplied first. Since the brush pieces will always face each other from the carding direction,
It becomes easy to apply the hair dye uniformly to the hair.

According to the third aspect of the invention, the hair is preferably held by the first brush piece during the combing operation, whereby the application of the hair dye to the hair can be reliably achieved.

In the invention according to claim 4, sufficient rigidity, high moldability, and good surface gloss make it possible to obtain a stable and good usability, and to obtain good and efficient productivity. It is possible to obtain a more desirable appearance.

In the invention according to claim 5, since the brush body and the handle can be molded with the synthetic resin material suitable for their functions, more preferable function and usability can be exhibited. Further, since it can be made compact when stored, it becomes easy to carry and store.

According to the sixth aspect of the present invention, a more preferable feeling of use can be obtained, and the brush body can be easily molded.

[Brief description of drawings]

FIG. 1 is an overall side view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of the embodiment shown in FIG.

3 is a bottom view of the embodiment shown in FIG.

FIG. 4 is an enlarged vertical sectional front view of the first brush portion of the embodiment shown in FIG.

5 is an enlarged vertical sectional side view of a second brush portion of the embodiment shown in FIG.

FIG. 6 is an exploded perspective view showing another embodiment of the present invention.

[Explanation of symbols]

1; Brush body 2; Brush stand 3; Reinforcing edge 4; Tip 5; First engaging portion 6; 1st brush part 7; First brush piece 8; Vacancy 9; Second brush section 10; Second brush piece 11; Handle 12; Connection part 13; Second engaging portion 14; Non-slip

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3B202 AA12 AB13 AB15 AB19 BA15                       DB01 DB04 EA01 EC07 EE03                       EF10 EG01

Claims (6)

[Claims] 1. A brush base (2) having a substantially rectangular flat plate shape.
On the underside of the head, excluding the tip (4),
(7) is sparsely and vertically suspended to form a first brush portion (6), and a large number of thin second brush pieces (10) are formed on the lower surface of the tip portion (4) of the brush base (2). Tightly and diagonally extend forward and downward.
2 brush portion (9) is formed, the inclination angle of the second brush piece (10) with respect to the vertical direction which is the mold opening direction, the second brush piece
(10) is set to a value that allows for forcible die removal from the injection mold, to form a brush body (1) that is a synthetic resin integrally molded product, and at the rear end of the brush body (1) A brush for hair dyeing, which is formed by connecting pattern bodies (11) extending diagonally upward and rearward. 2. The hollow portion (8) having no first brush piece (7) is formed in a portion of the central portion of the lower surface of the first brush portion (6) extending over substantially the entire length range. Brush for hair dyeing. 3. The bristle dyeing brush according to claim 1 or 2, wherein a large number of first brush pieces (7) are arranged in a zigzag pattern along the lateral direction. 4. The brush for dyeing hair according to claim 1, 2 or 3, which is integrally formed of block copolymer polypropylene. 5. The bristle dyeing brush according to claim 1, 2 or 3, wherein the handle (11) is detachably connected to the brush body (1). 6. The brush body (1) is molded from a soft synthetic resin material, and the handle (11) is molded from a hard synthetic resin material.
The described hair dyeing brush.