JPS5832687Y2 - hair brush for hair washing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel hair brush for washing hair that is constructed from a combination of two types of bristles having completely different properties.

The percentage of people who use a hairbrush when washing their hair is high at approximately 65%.

Furthermore, despite the fact that the degree of tangles in the hair, the condition of the scalp, and the physical properties of the hair are significantly different between the dry state and the time of washing, no consideration has been given to the use of hairbrushes for washing hair or brushing during washing. There are very few examples.

For this reason, most of the hairbrushes used for washing hair are the same as the hairbrushes normally used for brushing, and even though there are some that are called shampoo brushes, they are simply used to hold only the grip part to prevent the hairbrush from slipping out of your hand when washing your hair. It was just something that had changed.

The present inventors studied from various viewpoints such as the difference in the condition of hair and scalp during drying and washing, and devised a hairbrush for washing hair that is excellent in function and usability.

The present invention basically consists of short and relatively hard bristles 5 that become wet and soft with an aqueous surfactant solution and comb out severely tangled hair, but do not reach the scalp, and the combing effect. The present invention relates to a hair brush for washing hair which is constructed by combining a long and soft bristle 4 which is not large but cleans and massages the scalp without damaging the wet, soft and sensitive scalp.

From the standpoint of hairbrushes and brushing, a comparison between the dry state and the time of hair washing can be summarized as shown in Table 1 below.

From Table 1 above, it can be seen that the condition of the hair during hair washing and the required functions of the hairbrush are significantly different from those in the dry state, and that a hairbrush suitable for hair washing is required for hair washing.

Now, if we consider the structure of a hairbrush suitable for hair washing from Table 1, it will be as follows.

That is, items 1), 2), and 3) shown in Table 1, that is, the hair is soft and tangled,
Given the condition that a very large force is applied to the hair during combing, it is necessary to sparsely arrange bristles that are hard and have little bending so that tangles can be easily combed.

On the other hand, in order to meet the requirements of 4) and 5), that is, to increase cleaning efficiency without damaging the skin, which has become soft and sensitive to irritation, it is necessary to arrange the soft bristles closely.

Also, from the condition 6), it is sufficient that the hair styling effect is equal to or higher than that of a normal comb.

To summarize the above, from the point of view of hair combing, it is necessary to place hard bristles sparsely, while from the point of cleaning the scalp and pine surge, it is necessary to place soft bristles densely. The structure of the brush is completed.

In order to resolve this contradiction, the inventors of the present invention have conducted extensive research, and as a result, they have created a brush that combines two types of bristles with different functions and efficiently performs two types of bristles at the same time during hair washing.
That is, as shown in Figure 1, the bristle 5 is a hard and short bristle that is mainly responsible for combing the hair and does not reach the scalp.
An ideal hair brush for hair washing could be obtained by combining the hair brush with the soft and long bristles 4, which are mainly responsible for scalp cleaning and pine surge, as described below.

The requirements for each of the bristles 4 and 5 are very important, and even if any one of the conditions is violated, a satisfactory hairbrush cannot be obtained.

That is, regarding the bristle 4: (a) The diameter of the bristle is 0.55 to Q, 75 mm.

(b) The length of the bristles is 17 to 27 mm.

(c) Two to six bristles should be planted in bundles.

and (d) having a spherical molded part 6 at the tip with a diameter that is 1.2 to 2.5 times the diameter of the bristle.

It is necessary to meet the following four conditions, and bristle 5
Regarding bristle, the condition is that it is 2 to 8 mm shorter than bristle 4, and the thickness is 0.8 to 3. The condition Qmm must be satisfied.

In order to wash without damaging the scalp and to obtain a refreshing feeling through moderate pine surge, even when a large force is applied to the brush, it is necessary to relieve the force by the moderate bending of the bristles without directly transmitting the force to the scalp. be.

The degree of bending is determined only by the length and diameter of the bristle as long as the material and cross-sectional shape of the bristle are constant, and the length and diameter that give the desired degree of bending as a hair brush for hair washing are determined by the above (a) ( If it exceeds this range, it will cause inconveniences such as being too hard and causing pain to the scalp, being too soft and having no cleaning effect, or being too flexible and causing the hard bristles 5 to touch the scalp and cause pain. A desirable hairbrush will not be obtained.

In the present invention, if the number of bristles is outside the range specified in (c) above, that is, if the bristles 4 are not planted in bundles of 2 to 6 bristles, the following disadvantages occur.

That is, in the case of one mallet, the usability and cleaning effect are poor, and on the other hand, in the case of implanting in a bundle of more than six hairs, both are unfavorable in terms of damage to the hair.

In particular, if the number of strands 4 in a bundle exceeds 6, the hair will be pulled during the combing process when washing heavily tangled hair.
The disadvantages become serious, such as the occurrence of hair breakage or split ends, or the hair becoming brittle due to deformation exceeding its elastic limit, which eventually leads to hair breakage.

This means that when the brush advances to the vicinity of the hair clump, the hair becomes bristle 4.
This is because the frictional force increases when there are many bundles in one bundle because they pass through the base of the bundle.

The diameter of the spherical molded part provided at the tip of the bristle 4 is as described above (
If it is out of the range specified in d), that is, if it exceeds 2.5 times the diameter of the bristle 4, it will be difficult for the tip to contact the scalp, and if it is smaller than 1.2 times, even if the bending angle is not within the optimal range. Even if the stress is alleviated by using the bristle, the stress will not be sufficiently distributed and the scalp may be scratched by the tip of the bristle, which is not preferable.

That is, appropriate stimulation of the scalp can only be achieved through the two effects of stress relaxation due to the bending of the bristles and stress dispersion due to the spherical molded portion.

Since the bristle 5 is hard and has little deflection, it may damage the scalp if it touches the scalp, so it needs to be shorter than the bristle 4 so that it does not reach the scalp.

The difference should be 2 to 8 mm, preferably 3 to 6 mm, so that it is difficult to touch the scalp and the ability to comb out tangles is not impaired.

Also, the thickness of bristle 5 is 0.8 to 3. Qmm is suitable, more preferably 1.0 to 2. Qmm.

Further, by using the bristle 5 having the spherical molded portion 7 at the tip, a more preferable hairbrush can be obtained in that even if the bristle 5 touches the scalp, damage to the scalp can be prevented.

Simply combing the hair is sufficient to achieve the styling effect required of a hairbrush for washing, so bristle 4 and 5 are arranged in a straight line in the direction of movement of the hairbrush, as shown in Figure 4, in order to easily comb the hair with minimal force. It is preferable.

Most women who use a hairbrush when washing their hair move the hairbrush from the back of the head to the top of the head to the front of the head, and for most women, the angle between the direction of movement of the hairbrush and the long axis of the hairbrush is Since the angle θ is 50 to 85 degrees, the kerf 3 of the brush stand is provided at an angle θ of 5 to 40 degrees with respect to the long axis direction of the hair brush, and all the bristles 4 and 5 are cut as shown in FIG. If you place it on a perpendicular line that makes an angle of 50 to 85 degrees with the long axis direction of the hairbrush that has passed through the outermost bristle hole or bristle 5 and is lowered into the kerf 3,
The hair brush goes through the best way.

The suitable material for the bristles in the present invention is nylon, but other synthetic resins such as polypropylene and polyethylene terephthalate can also be used.

Although the degree of bending of the bristle changes somewhat depending on the material, a good hair brush can be obtained as long as it is within the ranges (a) to (b) above.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of the hairbrush of the present invention.
Figure 2 is an enlarged partial cutaway view of the hairbrush, Figure 3 is a perspective view of the bristle holes and kerfs provided in the brush stand, and Figure 4 is a view of the hair brush showing the angle between the long axis direction of the brush and the kerfs. The overall view, FIG. 5 is an example of the flocked bristles in a flocked state, and FIGS. 6 and 7 are diagrams each illustrating integrally molded bristles. 1... Brush stand, 2... Tube hole, 3.
...kerf, 4゜5...bristle.

Claims (1)

[Scope of claim for utility model registration] 1. Bristle planting holes 2 for installing bristles on the brush stand 1
and a kerf 3, a bristle 4 having the following requirement (A) is implanted in the tufting hole 2, and a bristle 5 which is integrally molded and having the following requirement (B) is fitted into the kerf 3. The angle between the cut groove 3 and the long axis direction of the brush stand 1 is 5 to 40 degrees.
It is characterized in that it is constructed so that all the tuft holes 2 and bristles 5 are on a perpendicular line extending through the outermost tuft hole or bristle 5 and descending to the kerf 3. Hair brush for washing hair. (A) (B) Bristle diameter is 0.55 to 0.75
mm. (b) The length of the bristle is 17 to 27 mm. (c) The bristle is planted in bundles of 2 to 6. (d) It has a spherical molded part 6 at the tip with a diameter 1.2 to 2.5 times the diameter of the bristle. (B) It is 2-8mm shorter than the Brützl in (A),
The thickness is Q, 8-3. Q mm0 2 The hair brush for hair washing according to claim 1, wherein the bristle 5 has a spherical part 7 at its tip.