WO2013164986A1 - Toothbrush - Google Patents
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- WO2013164986A1 WO2013164986A1 PCT/JP2013/062383 JP2013062383W WO2013164986A1 WO 2013164986 A1 WO2013164986 A1 WO 2013164986A1 JP 2013062383 W JP2013062383 W JP 2013062383W WO 2013164986 A1 WO2013164986 A1 WO 2013164986A1
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- hair
- hair bundle
- toothbrush
- bristle
- sliding
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/04—Arranged like in or for toothbrushes
Definitions
- the present invention has, for example, the following aspects.
- the flocking density is 2500 / cm 2 or more (JIS The value (A / B) of the vertical bristle strength A [N / cm 2 ]) / (horizontal bristle strength B [N] measured by the following measurement method) measured according to S 3016 is 40 [1 / cm 2 ] Toothbrush characterized by the above.
- the sliding body is slid on the bristle bundle under the following sliding conditions (a) to (d), and the maximum load in the sliding direction applied to the sliding body is defined as horizontal bristle strength B.
- sliding conditions A plurality of cylindrical rod-shaped bodies (made of stainless steel, diameter: 0.5 mm, maximum surface roughness Ra: 0.4 mm) are arranged in parallel with each other at regular intervals (3 mm intervals between the centers of the rod-shaped bodies). Use a sliding body.
- the sliding body and the flocked surface are arranged in parallel to each other.
- At least one of the bristle bundles has a bristle bundle diameter of 2.5 mm or more, and [3] at least one of the bristle bundles has a bristle bundle diameter of 3. 0 mm or more,
- the ratio (A / B) of the vertical bristle strength A to the horizontal bristle strength B in the entire bristle bundle is 40 [1 / cm 2 ] or more, and 45 [1 / cm 2 ] or more. Preferably there is.
- a / B is 40 [1 / cm 2 ] or more, the flexibility of the bristles is sufficient, the touching feeling of the hair bundle against the gums is improved, or a cleaning feeling is obtained.
- thin hair and long hair may be used in order to increase the flocking density and increase the flexibility of the hair bundle.
- the vertical bristle strength A is measured according to JIS S 3016. Specifically, as shown in FIG. 3, all the hair bundles 12a and 12b are trimmed so as to have a length of 7 mm, and the perpendicular to the end face 12c of the hair bundles 12a and 12b formed by the trimming. From the direction, the load body 100 having the pressing surface 101 is brought into contact and pressed at a speed of 10 mm / min to bend the hair bundles 12a and 12b. At that time, the maximum load applied to the load body 100 is measured, and the value obtained by the maximum load / planted area is defined as the vertical fur waist strength A [unit: N / cm 2 ].
- the flocking density in the flocked region is 2500 / cm 2 or more, preferably 2800 / cm 2 or more, more preferably 3000 / cm 2 or more.
- the “planting density” is a value obtained by the number of hairs in the planting region / the planting area.
- the flocking density is preferably 6000 / cm 2 or less, more preferably 5000 / cm 2 or less from the viewpoint of production.
- the range of the flocking density is preferably 2500 to 6000 / cm 2, more preferably 2800 to 6000 / cm 2 , and still more preferably 3000 to 5000 / cm 2 .
- the vicinity of the center of the head portion in the short direction (center portion) is within a range of ⁇ 2 mm from the center of the head portion in the short direction, and when it gradually decreases, the shortest hair length among all the hair bundles Is preferably at least 60% or more with respect to the longest hair length, preferably 80 to 95%. If it is 60% or less, the fit and the contact feeling are lowered.
- a central hair bundle group located at approximately the center in the short direction of the head part;
- An outer hair bundle group composed of two or more hair bundles planted across the central hair bundle group in the short direction of the head portion;
- the flocking density is 2500 / cm 2 or more and 4500 / cm 2 or less,
- the value (A / B) of (vertical bristle strength A [N / cm 2 ] measured according to JIS S 3016] / (horizontal bristle strength B [N] measured by the following measurement method) is 40 [1 / cm 2 ] or more and 60 [1 / cm 2 ] or less,
- the hair bundle diameter of the outer hair bundle group is 2.8 mm or more and 3.5 mm or less,
- the thickness of the outer hair bundle group is 4-7 mils,
- the hair length of the outer hair bundle group is 1
Abstract
Description
本願は、2012年5月1日に日本に出願された特願2012-104548号に基づき優先権を主張し、その内容をここに援用する。 The present invention relates to a toothbrush.
This application claims priority based on Japanese Patent Application No. 2012-104548 filed in Japan on May 1, 2012, the contents of which are incorporated herein by reference.
ところで、歯周病罹患者は、口腔内清掃時の痛みや出血等の発生を防ぐために、歯茎への刺激が少なくなるような柔らかい当たり心地の歯ブラシを好む傾向にある。歯茎への刺激が少ない歯ブラシとしては、植毛面に毛束を高密度に植毛して、口腔内清掃時の刷掃圧を分散させるものが知られている(特許文献1)。 The basic functions of the toothbrush include an oral cleaning effect and a massage effect. In order to improve the basic function of the toothbrush, the interdental penetration, the cleaning feeling, or the massage is added conventionally. In order to increase the added value of such a toothbrush, it is generally effective to use a complicated combination of the arrangement and shape of the flock holes, the type and shape of the brush, or the hair cutting shape of the hair bundle.
By the way, a person suffering from periodontal disease tends to prefer a toothbrush with a soft contact feeling that causes less irritation to the gums in order to prevent the occurrence of pain and bleeding at the time of oral cleaning. As a toothbrush with little irritation to the gums, there is known one that disperses the brushing pressure at the time of oral cleaning by flocking a hair bundle with high density on the flocked surface (Patent Document 1).
また、毛先の可撓性を向上させるためには柔らかい毛束を用いればよいが、柔らかい毛束の歯ブラシでは、歯や歯茎を刷掃した際に撫でるような感触となり、清掃実感が得られず、歯茎を面で刷掃する実感が不充分であった。
本発明は、毛先の可撓性が高く、歯茎への毛束の当たり心地が良好であると共に高い清掃実感が得られ、歯茎を面で刷掃する実感にも優れる歯ブラシを提供することを目的とする。 However, in the conventional high-density flocked toothbrush, the hair bundles support each other, and therefore, all the hair bundles move together during cleaning, and the flexibility of the hair ends tends to be suppressed. When the flexibility of the hair ends is suppressed, the hair bundle may feel hard when the hair bundle contacts the gums. That is, the comfort of the hair bundle against the gums may be deteriorated.
In addition, a soft bristle bundle may be used to improve the flexibility of the bristles. However, a soft bristle toothbrush feels like it is boiled when the teeth and gums are wiped, and provides a feeling of cleaning. In fact, the actual feeling of brushing the gums on the surface was insufficient.
The present invention provides a toothbrush having a high flexibility of the bristles, a good feel of the hair bundle against the gums, a high cleaning feeling, and an excellent feeling of brushing the gums on the surface. Objective.
[1]先端にヘッド部が設けられたハンドル体を備え、前記ヘッド部の植毛面に用毛の毛束が植設された歯ブラシにおいて、植毛密度が2500本/cm2以上であり、(JIS S 3016に従って測定された垂直毛腰強度A[N/cm2])/(下記測定方法により測定された水平毛腰強度B[N])の値(A/B)が40[1/cm2]以上であることを特徴とする歯ブラシ。
<水平毛腰強度の測定方法>
被摺動体を下記(a)~(d)の摺動条件で毛束に摺動させ、被摺動体にかかった摺動方向の最大荷重を水平毛腰強度Bとする。
[摺動条件]
(a)複数本の円柱状の棒状体(ステンレス製、直径:0.5mm、最大表面粗さRa:0.4mm)が互いに平行に一定間隔(棒状体の中心同士で3mm間隔)で配列された被摺動体を用いる。
(b)被摺動体と植毛面とを互いに平行に配置する。
(c)最長毛束の先端から植毛面側1mmの位置で棒状体が接触すると共に歯ブラシの長手方向と棒状体の長手方向とが互いに垂直になるように、被摺動体を往復移動させる。
(d)被摺動体の移動速度を10mm/分とする。
[2]毛束の少なくとも一つは、毛束径が2.5mm以上とされている、[1]に記載の歯ブラシ。 The present invention has, for example, the following aspects.
[1] In a toothbrush comprising a handle body provided with a head portion at the tip and having a bristles of hairs implanted on the flocked surface of the head portion, the flocking density is 2500 / cm 2 or more (JIS The value (A / B) of the vertical bristle strength A [N / cm 2 ]) / (horizontal bristle strength B [N] measured by the following measurement method) measured according to S 3016 is 40 [1 / cm 2 ] Toothbrush characterized by the above.
<Measurement method of horizontal fur waist strength>
The sliding body is slid on the bristle bundle under the following sliding conditions (a) to (d), and the maximum load in the sliding direction applied to the sliding body is defined as horizontal bristle strength B.
[Sliding conditions]
(A) A plurality of cylindrical rod-shaped bodies (made of stainless steel, diameter: 0.5 mm, maximum surface roughness Ra: 0.4 mm) are arranged in parallel with each other at regular intervals (3 mm intervals between the centers of the rod-shaped bodies). Use a sliding body.
(B) The sliding body and the flocked surface are arranged in parallel to each other.
(C) The sliding body is reciprocated so that the rod-shaped body comes into contact at a
(D) The moving speed of the sliding object is 10 mm / min.
[2] The toothbrush according to [1], wherein at least one of the bristle bundles has a bristle bundle diameter of 2.5 mm or more.
〔1〕先端にヘッド部が設けられたハンドル体を備え、前記ヘッド部の植毛面に用毛の毛束が植設された歯ブラシにおいて、植毛密度が2500本/cm2以上であり、(JIS S 3016に従って測定された垂直毛腰強度A[N/cm2])/(下記測定方法により測定された水平毛腰強度B[N])の値(A/B)が40[1/cm2]以上である歯ブラシ、
<水平毛腰強度の測定方法>
被摺動体を下記(a)~(d)の摺動条件で毛束に摺動させ、被摺動体にかかった摺動方向の最大荷重を水平毛腰強度Bとする。
[摺動条件]
(a)2本以上の円柱状の棒状体(ステンレス製、直径:0.5mm、最大表面粗さRa:0.4mm)が互いに平行に一定間隔(棒状体の中心同士で3mm間隔)で配列された被摺動体を用いる。
(b)被摺動体と植毛面とを互いに平行に配置する。
(c)最長毛束の先端から植毛面側1mmの位置で棒状体が接触すると共に歯ブラシの長手方向と棒状体の長手方向とが互いに垂直になるように、被摺動体を往復移動させる。
(d)被摺動体の移動速度を10mm/分とする。
〔2〕毛束の少なくとも一つは、毛束径が2.5mm以上とされている、〔1〕に記載の歯ブラシ、及び
〔3〕毛束の少なくとも一つは、毛束径が3.0mm以上であり、
毛束全体のプロファイルが、ヘッド部の短手方向における中央部の毛丈が最も高く、両側に向かうにつれて毛丈が漸次低くなるドーム型である、〔2〕に記載の歯ブラシ。 The present invention has the following aspects.
[1] A toothbrush comprising a handle body provided with a head portion at the tip and having a bristles of hair on the flocked surface of the head portion, the flocking density is 2500 / cm 2 or more (JIS The value (A / B) of the vertical bristle strength A [N / cm 2 ]) / (horizontal bristle strength B [N] measured by the following measurement method) measured according to S 3016 is 40 [1 / cm 2 ] Toothbrush that is more than
<Measurement method of horizontal fur waist strength>
The sliding body is slid on the bristle bundle under the following sliding conditions (a) to (d), and the maximum load in the sliding direction applied to the sliding body is defined as horizontal bristle strength B.
[Sliding conditions]
(A) Two or more cylindrical rod-shaped bodies (made of stainless steel, diameter: 0.5 mm, maximum surface roughness Ra: 0.4 mm) are arranged in parallel with each other at regular intervals (3 mm intervals between the centers of the rod-shaped bodies). Use the object to be slid.
(B) The sliding body and the flocked surface are arranged in parallel to each other.
(C) The sliding body is reciprocated so that the rod-shaped body comes into contact at a
(D) The moving speed of the sliding object is 10 mm / min.
[2] At least one of the bristle bundles has a bristle bundle diameter of 2.5 mm or more, and [3] at least one of the bristle bundles has a bristle bundle diameter of 3. 0 mm or more,
The toothbrush according to [2], in which the profile of the entire hair bundle is a dome shape in which the hair length at the center in the short direction of the head portion is the highest, and the hair height gradually decreases toward both sides.
図1及び図2に、本実施形態の歯ブラシを示す。本実施形態の歯ブラシ1は、先端にヘッド部10が設けられたハンドル体1aを備える。
ヘッド部10の植毛面11には2以上の植毛穴11a,11bが形成され、植毛穴11a,11bには、用毛の毛束12a,12bが植設されている。
本実施形態におけるヘッド部10は、ハンドル体1aの軸線Lに沿って並設された2以上の毛束12aからなり、ヘッド部10の短手方向(軸線Lの方向に対して垂直方向)の略中央に位置する中央毛束群αと、ヘッド部10の短手方向で中央毛束群αを挟んで植設された2以上の毛束12bからなる外側毛束群βとを有する。
中央毛束群αにおいては、毛束12aが、軸線Lの方向(すなわち、歯ブラシ1の長手方向L)に沿って千鳥状に配置されており、外側毛束群βにおいては、毛束12bが、軸線Lの方向に沿ってほぼ直線状に配置されている。
外側毛束群βの毛束12bを植設された植毛穴11bは、中央毛束群βの毛束12aが植設された植毛穴11aよりも大きくなっている。そのため、外側毛束群βの毛束12bは、中央毛束群αの毛束12aよりも太くなっている。 An embodiment of the toothbrush of the present invention will be described.
The toothbrush of this embodiment is shown in FIG.1 and FIG.2. The
Two or more flocked
The
In the central hair bundle group α, the
The
A/Bの値を大きくするためには、例えば、植毛密度を高くすると共に、毛束の可撓性を高めるために、細い用毛、毛丈が長い用毛を使用すればよい。
また、A/Bは、実用性の点からは80[1/cm2]以下であることが好ましく、60[1/cm2]以下であることがより好ましい。
A/Bの範囲は、40~80[1/cm2]が好ましく、45~60[1/cm2]がより好ましい。
上記のように、(A/B)の値に、単位として「1/cm2」が付されているが、これは、Aの単位が「N/cm2」、Bの単位が「N」であるためである。 In the
In order to increase the value of A / B, for example, thin hair and long hair may be used in order to increase the flocking density and increase the flexibility of the hair bundle.
Further, A / B is preferably 80 [1 / cm 2 ] or less, more preferably 60 [1 / cm 2 ] or less from the viewpoint of practicality.
The range of A / B is preferably 40 to 80 [1 / cm 2 ], and more preferably 45 to 60 [1 / cm 2 ].
As described above, the unit of “1 / cm 2 ” is attached to the value of (A / B). This is because the unit of A is “N / cm 2 ” and the unit of B is “N”. This is because.
上記の「植毛面積」は、JIS S 3016にて規定されており、最外側の各植毛穴の穴縁の最外部分を結んだ際に得られる仮想線Tによって囲まれる領域(植毛領域)の面積である。この仮想線Tは隣接する植毛穴同士の接線を構成する。 The vertical bristle strength A is measured according to JIS S 3016. Specifically, as shown in FIG. 3, all the
The above-mentioned “planted area” is defined in JIS S 3016, and is a region (planted region) surrounded by an imaginary line T obtained when the outermost portion of the outermost planted hole is connected. It is an area. This virtual line T constitutes a tangent line between adjacent flock holes.
垂直毛腰強度Aを調整するためには、例えば、植毛密度を調整すればよい。 It is preferred that the vertical bristle stiffness strength A is 45 ~ 75N / cm 2, and more preferably 50 ~ 70N / cm 2. If the vertical bristle strength A is 45 N / cm 2 or more, a sufficient cleaning feeling is obtained, and if it is 75 N / cm 2 or less, the flexibility of the hair tip is further increased.
In order to adjust the vertical bristle waist strength A, for example, the flocking density may be adjusted.
[摺動条件]
(a)2本以上の円柱状の棒状体201(ステンレス製、直径:0.5mm、最大表面粗さRa:0.4mm)が互いに平行に一定間隔(棒状体の中心同士で3mm間隔)で配列された被摺動体200を用いる。
(b)被摺動体200と植毛面11とを互いに平行に配置する。
(c)最長毛束(毛束12a)の先端から植毛面11側1mmの位置で棒状体201が接触すると共に歯ブラシ1の長手方向と棒状体201の長手方向とが互いに垂直になるように、被摺動体200を往復移動させる。
(d)被摺動体200の移動速度を10mm/分とする。 The horizontal bristle strength B is measured by the following method. That is, as shown in FIG. 4, the sliding body is slid on the bristle bundle under the following sliding conditions (a) to (d), and the maximum load in the sliding direction applied to the sliding body is determined as the horizontal bristle strength. Let B [unit: N].
[Sliding conditions]
(A) Two or more cylindrical rod bodies 201 (made of stainless steel, diameter: 0.5 mm, maximum surface roughness Ra: 0.4 mm) are parallel to each other at regular intervals (intervals of 3 mm between the centers of the rod bodies). The arrayed sliding
(B) The sliding
(C) The rod-shaped body 201 is in contact at a
(D) The moving speed of the
水平毛腰強度Bを調整するためには、例えば、用毛の太さ、又は長さを調整すればよい。 The horizontal bristle strength B is preferably 0.8 to 2.5N, and more preferably 1.0 to 1.5N. If the horizontal bristle strength B is 0.8 N or more, the flexibility of the hair tip becomes higher, and if it is 2.5 N or less, a sufficient cleaning feeling is easily obtained.
In order to adjust the horizontal hair strength B, for example, the thickness or length of the hair may be adjusted.
また、植毛密度は、製造上の点から6000本/cm2以下であることが好ましく、5000本/cm2以下であることがより好ましい。
植毛密度の範囲は、2500~6000本/cm2が好ましく、2800~6000本/cm2であることがより好ましく3000~5000本/cm2であることがさらに好ましい。 The flocking density in the flocked region is 2500 / cm 2 or more, preferably 2800 / cm 2 or more, more preferably 3000 / cm 2 or more. Here, the “planting density” is a value obtained by the number of hairs in the planting region / the planting area. When the flocking density is 2500 / cm 2 or more, it is possible to sufficiently obtain a feeling of brushing the gums on the surface during cleaning in the oral cavity.
The flocking density is preferably 6000 / cm 2 or less, more preferably 5000 / cm 2 or less from the viewpoint of production.
The range of the flocking density is preferably 2500 to 6000 / cm 2, more preferably 2800 to 6000 / cm 2 , and still more preferably 3000 to 5000 / cm 2 .
植毛穴11a,11bの少なくとも一つは、容易に毛束12a,12bを太くして植毛密度を高くできる点では、穴径が2.5mm以上4.5mm以下とされていることが好ましく、3.0mm以上4.0mm以下がより好ましい。具体的に、本実施形態では、外側毛束群βの毛束12bが植設された植毛穴11bの穴径が2,5mm以上4.5mm以下とされていることが好ましく、3.0mm以上4.0mm以下がより好ましい。 In order to increase the flocking density, for example, the number of flocking is increased, the interval between two flocking holes (the interval between flocking
Preferably, at least one of the flocking
植毛面11の位置において、植毛穴の径と毛束の径は同じ値になることが好ましい。 At least one diameter of the
In the position of the flocked
また、用毛は、芯部と前記芯部の外側に設けられた少なくとも1層以上の鞘部とを有する多重芯構造であってもよい。 Examples of the material for the hair constituting the
Further, the bristle may have a multi-core structure having a core part and at least one or more sheath parts provided outside the core part.
また、用毛の太さの下限は、毛束の状態で自立可能で、刷掃実感、又は毛開き耐久性を確保できれば、特に制限されない。
毛束を構成する用毛は、全てが同じ太さであってもよいし、2種以上の異なる太さの用毛が組み合わされてもよい。 The thickness of each hair is not particularly limited, but it is preferably thin in terms of making the gum feel better. For example, when the cross section is circular, 7 mil (1 mil = 1/1000 inch = 0.025 mm) or less is preferable. If it is 7 mils or less, the contact feeling to a gum will be improved, the number of hairs that can be implanted into one flocked hole can be increased, and high-density flocking can be easily achieved.
Further, the lower limit of the thickness of the bristles is not particularly limited as long as it can be self-supported in the state of the hair bundle and can secure the brushing feeling or the hair opening durability.
All the hairs constituting the hair bundle may have the same thickness, or two or more kinds of hairs having different thicknesses may be combined.
用毛の毛丈については特に制限されず、例えば、7~13mmの範囲で適宜選択される。 In the present embodiment, the hair constituting the
The hair length of the hair is not particularly limited, and is appropriately selected within the range of 7 to 13 mm, for example.
平線を打ち込む方法では、用毛を2本以上束ねて二つ折りにし、その間に平線と呼ばれる抜止め具を挟んで植毛穴に打ち込むことによって、毛束を各植毛穴に植毛する。
平線は、植毛穴の中心部を通り、且つ、植毛穴を跨ぐように植毛穴に打設されている。
平線の材質としては、例えば、真鍮やステンレスなどの金属を挙げることができ、その他にも硬質プラスチックや生分解性プラスチックなどを挙げることができる。
平線の長さや幅、又は厚みは、毛束や植毛穴に合わせて任意に調整すればよいが、通常、平線の長さは植毛穴の直径よりも大きく、平線の幅は植毛穴の深さよりも小さくされる。また、平線の厚みを調節することによって、毛束を植毛穴内に確実に固定して空隙を少なくすることができる。また、平線は、植毛穴からの抜けを防ぐため、植毛穴の両側からはみ出した部分の長さの合計が0.3~0.6mmであることが好ましい。 As a method of planting the hair bundle, a known method such as a method of driving a flat wire or a method of heat welding can be applied.
In the method of driving a flat wire, two or more bristles are bundled and folded in half, and a hair retainer is implanted in each flocked hole by sandwiching a retaining tool called a flat wire between them.
The flat line is placed in the flock hole so as to pass through the center of the flock hole and straddle the flock hole.
Examples of the material of the flat wire include metals such as brass and stainless steel, and other examples include hard plastic and biodegradable plastic.
The length, width, or thickness of the flat wire may be arbitrarily adjusted according to the hair bundle or flocked hole. Usually, the length of the flat wire is larger than the diameter of the flocked hole, and the width of the flat wire is the flocked hole. Is less than the depth of. Moreover, by adjusting the thickness of the flat wire, the hair bundle can be securely fixed in the flock hole and the gap can be reduced. Further, in order to prevent the flat wire from coming out of the flocked hole, the total length of the portions protruding from both sides of the flocked hole is preferably 0.3 to 0.6 mm.
また、ハンドル体1aは、把持性を向上させるため、例えばエラストマーなどの柔軟な樹脂が部分的又は全体に被覆されていてもよい。 The material of the
Further, the
また、毛束全体のプロファイルとしては、特に制限されず、図9に示すような、ヘッド部の短手方向における中央付近(中央部)の毛丈が最も高く、両側に向かうにつれて毛丈が漸次低くなるドーム型であってもよいし、毛丈が全体的に均一なフラット型であってもよい。ドーム型である場合には、フィット性及び当たり心地が向上する。
前記ヘッド部の短手方向における中央付近(中央部)とは、ヘッド部の短手方向の中心から±2mmの範囲であり、漸次低くなる場合においては、全毛束のなかで最短の毛丈が最長の毛丈に対して少なくとも60%以上あるのが良く、80~95%が好ましい。60%以下の場合はフィット性及び当り心地が低下する。 The present invention is not limited to the above embodiment. For example, the hole diameters of the flock holes of the central hair bundle group and the outer hair bundle group are all the same, and the hair of the outer hair bundle group is more than the hair of the central hair bundle group. May be thin. Moreover, it is not necessary to divide into the center hair | bristle bundle group and the outer side hair | bristle bundle group, the diameter of all the hair | bristle bundles may be the same, and all the hairs may be the same.
Further, the profile of the entire hair bundle is not particularly limited, and as shown in FIG. 9, the hair length near the center (center portion) in the short direction of the head portion is the highest, and the hair length gradually increases toward both sides. It may be a dome shape that lowers, or a flat shape that has uniform overall hair length. In the case of a dome shape, the fit and the contact feeling are improved.
The vicinity of the center of the head portion in the short direction (center portion) is within a range of ± 2 mm from the center of the head portion in the short direction, and when it gradually decreases, the shortest hair length among all the hair bundles Is preferably at least 60% or more with respect to the longest hair length, preferably 80 to 95%. If it is 60% or less, the fit and the contact feeling are lowered.
先端にヘッド部が設けられたハンドル体を備え、前記ヘッド部の植毛面に用毛の毛束が植設された歯ブラシにおいて、
前記ヘッド部の短手方向の略中央に位置する中央毛束群と、
ヘッド部の短手方向で中央毛束群を挟んで植設された2以上の毛束からなる外側毛束群とを有し、
植毛密度が2500本/cm2以上4500本/cm2以下であり、
(JIS S 3016に従って測定された垂直毛腰強度A[N/cm2])/(下記測定方法により測定された水平毛腰強度B[N])の値(A/B)が40[1/cm2]以上60[1/cm2]以下であり、
外側毛束群の毛束径が2.8mm以上3.5mm以下であり、
外側毛束群の用毛の太さが4~7milであり、
外側毛束群の毛丈が11.5~12.5mmであり、
外側毛束群の用毛がストレート毛又はテーパー毛であり、
中央毛束群の毛束径が1.3mm以上1.8mm以下であり、
中央毛束群の用毛の太さが4~7milであり、
中央毛束群の毛丈が12.5~3mmであり、
外側毛束群の用毛がテーパー毛であり、
毛束全体のプロファイルが、ヘッド部の短手方向における中央部の毛丈が最も高く、両側に向かうにつれて毛丈が漸次低くなるドーム型であり、
前記垂直毛腰強度Aが50~70N/cm2であり、
前記水平毛腰強度Bが1.0~1.5Nであることが好ましい。 As a toothbrush of another side of the present invention,
In a toothbrush provided with a handle body provided with a head portion at the tip, and a hair bundle of hairs is implanted on the flocked surface of the head portion,
A central hair bundle group located at approximately the center in the short direction of the head part;
An outer hair bundle group composed of two or more hair bundles planted across the central hair bundle group in the short direction of the head portion;
The flocking density is 2500 / cm 2 or more and 4500 / cm 2 or less,
The value (A / B) of (vertical bristle strength A [N / cm 2 ] measured according to JIS S 3016] / (horizontal bristle strength B [N] measured by the following measurement method) is 40 [1 / cm 2 ] or more and 60 [1 / cm 2 ] or less,
The hair bundle diameter of the outer hair bundle group is 2.8 mm or more and 3.5 mm or less,
The thickness of the outer hair bundle group is 4-7 mils,
The hair length of the outer hair bundle group is 11.5 to 12.5 mm,
The hair of the outer hair bundle group is straight hair or tapered hair,
The hair bundle diameter of the central hair bundle group is 1.3 mm or more and 1.8 mm or less,
The thickness of the hair in the central hair bundle group is 4-7 mil,
The hair length of the central hair bundle group is 12.5-3mm,
The hair of the outer hair bundle group is a tapered hair,
The profile of the entire hair bundle is a dome shape in which the hair length at the center in the short direction of the head portion is the highest, and the hair length gradually decreases toward both sides,
The vertical bristle waist strength A is 50 to 70 N / cm 2 ,
The horizontal bristle waist strength B is preferably 1.0 to 1.5N.
図1に示すような、植毛穴11aに植設された毛束12aからなる中央毛束群αと、植毛穴11bに植設された毛束12bからなる外側毛束群βとを有する歯ブラシ1を作製した。
外側毛束群における毛束直径及び用毛、中央毛束群における毛束直径及び用毛、毛束全体のプロファイル、並びに植毛密度を表1に示すものとした。表1中、用毛の形状の「S」はストレート毛を示し、「T」はテーパー毛を示す。また、互いに隣接する毛束同士の最短距離は0.6mmとした。
また、各例の歯ブラシについて、下記測定方法により垂直毛腰強度A及び水平毛腰強度Bを測定し、(A/B)の値を求めた。その結果を表1に示す。 (Examples 1 and 2, Comparative Examples 1 and 2)
As shown in FIG. 1, a
Table 1 shows the hair bundle diameter and hair in the outer hair bundle group, the hair bundle diameter and hair in the central hair bundle group, the profile of the whole hair bundle, and the flocking density. In Table 1, “S” in the shape of the hair represents straight hair, and “T” represents tapered hair. The shortest distance between adjacent hair bundles was 0.6 mm.
Moreover, about the toothbrush of each example, the vertical bristle strength A and the horizontal bristle strength B were measured with the following measuring method, and the value of (A / B) was calculated | required. The results are shown in Table 1.
図5に示すような千鳥・格子を組み合わせた毛束12dの配列とし、表1に示すように、2以上の毛束直径を全て同一とし、用毛の直径、長さ及び形状も全て同一とした歯ブラシを作製した。互いに隣接する毛束同士の最短距離は0.6mmとした。また、これらの例で使用されるストレート毛は、毛先の先端側の1.5mmを円錐形とした。
これらの歯ブラシについても、下記測定方法により垂直毛腰強度A及び水平毛腰強度Bを測定し、(A/B)の値を求めた。その結果を表1に示す。 (Comparative Examples 3 to 5)
As shown in Table 1, two or more hair bundle diameters are the same, and the hair diameter, length and shape are all the same, as shown in Table 1. A toothbrush was made. The shortest distance between adjacent hair bundles was 0.6 mm. Further, the straight hair used in these examples had a conical shape with 1.5 mm on the tip side of the hair tip.
For these toothbrushes, the vertical bristle strength A and horizontal bristle strength B were measured by the following measurement method, and the value of (A / B) was determined. The results are shown in Table 1.
図6に示すような、毛束12eからなる中央毛束群γと、毛束12fからなる外側毛束群δとを有する歯ブラシ2を作製した。
外側毛束群における毛束直径及び用毛、中央毛束群における毛束直径及び用毛、毛束全体のプロファイル、並びに植毛密度を表1に示すものとした。 (Example 3)
As shown in FIG. 6, a
Table 1 shows the hair bundle diameter and hair in the outer hair bundle group, the hair bundle diameter and hair in the central hair bundle group, the profile of the whole hair bundle, and the flocking density.
図7に示すような、毛束12gからなる中央毛束群εと、毛束12hからなる外側毛束群ζとを有する歯ブラシ3を作製した。
外側毛束群における毛束直径及び用毛、中央毛束群における毛束直径及び用毛、毛束全体のプロファイル、並びに植毛密度を表1に示すものとした。 (Example 4)
As shown in FIG. 7, a
Table 1 shows the hair bundle diameter and hair in the outer hair bundle group, the hair bundle diameter and hair in the central hair bundle group, the profile of the whole hair bundle, and the flocking density.
図8に示すような、毛束12iからなる中央毛束群ηと、毛束12jからなる外側毛束群θとを有する歯ブラシ4を作製した。
外側毛束群における毛束直径及び用毛、中央毛束群における毛束直径及び用毛、毛束全体のプロファイル、並びに植毛密度を表1に示すものとした。 (Example 5)
A
Table 1 shows the hair bundle diameter and hair in the outer hair bundle group, the hair bundle diameter and hair in the central hair bundle group, the profile of the whole hair bundle, and the flocking density.
全毛束を長さ7mmになるように切り揃え、その切り揃えにより形成された毛束の端面に対し、その垂直方向から、円形状の押圧面(直径:5cm)を有する荷重体を接触させ、さらに毛束を10mm/分の速度で押圧して毛束を撓ませた。その際に荷重体にかかった最大荷重を測定し、最大荷重/植毛面積で求められた値を垂直毛腰強度A[単位:N/cm2]とした。 <Measurement method for vertical hair stiffness>
The entire hair bundle is trimmed to a length of 7 mm, and a load body having a circular pressing surface (diameter: 5 cm) is brought into contact with the end surface of the hair bundle formed by the trimming from the vertical direction. Further, the hair bundle was pressed at a speed of 10 mm / min to bend the hair bundle. At that time, the maximum load applied to the load body was measured, and the value obtained by the maximum load / planted area was defined as the vertical bristle waist strength A [unit: N / cm 2 ].
被摺動体を下記(a)~(d)の摺動条件で毛束に摺動させ、被摺動体にかかった摺動方向の最大荷重を水平毛腰強度Bとした。
[摺動条件]
(a)2本以上の円柱状の棒状体(ステンレス製、直径:0.5mm、最大表面粗さRa:0.4mm)が互いに平行に一定間隔(棒状体の中心同士で3mm間隔)で配列された被摺動体を用いる。
(b)被摺動体と植毛面とを互いに平行に配置する。
(c)最長毛束の先端から植毛面側1mmの位置で棒状体が接触すると共に歯ブラシの長手方向と棒状体の長手方向とが互いに垂直になるように、被摺動体を往復移動させる。
(d)被摺動体の移動速度を10mm/分とする。 <Measurement method of horizontal fur waist strength>
The sliding object was slid on the bristle bundle under the following sliding conditions (a) to (d), and the maximum load in the sliding direction applied to the sliding object was defined as horizontal bristle strength B.
[Sliding conditions]
(A) Two or more cylindrical rod-shaped bodies (made of stainless steel, diameter: 0.5 mm, maximum surface roughness Ra: 0.4 mm) are arranged in parallel with each other at regular intervals (3 mm intervals between the centers of the rod-shaped bodies). Use the object to be slid.
(b) The sliding body and the flocked surface are arranged in parallel to each other.
(C) The sliding body is reciprocated so that the rod-shaped body comes into contact at a
(D) The moving speed of the sliding object is 10 mm / min.
モニター10人が各例の歯ブラシを使用し、歯牙と歯茎との隙間の清掃実感を下記評価基準にて評価した。モニター10人の平均点が2.5点以上を「A」、平均点2.0点以上2.5点未満を「B」、平均点1.5点以上2.0点未満を「C」、平均点1.5点未満を「D」とした。
(評価基準)
3点:歯牙と歯茎との隙間の汚れが落ちた感触を非常に感じる。
2点:歯牙と歯茎との隙間の汚れが落ちた感触を感じる。
1点:歯牙と歯茎との隙間の汚れが落ちた感触をあまり感じない。
0点:歯牙と歯茎との隙間の汚れが落ちた感触を感じない。 [Clean feeling]
Ten monitors used the toothbrush of each example, and evaluated the cleaning feeling of the clearance gap between a tooth and a gum on the following evaluation criteria. The average score of 10 monitors is “A” when the average score is 2.5 or higher, “B” when the average score is 2.0 or higher and lower than 2.5, and “C” when the average score is 1.5 or higher and lower than 2.0. The average score of less than 1.5 was designated as “D”.
(Evaluation criteria)
3 points: I feel the feeling that the dirt in the gap between the teeth and gums has been removed.
2 points: Feels that the dirt in the gap between the teeth and gums has been removed.
1 point: There is not much feeling that the dirt in the gap between the tooth and the gum has been removed.
0 point: Feels that the dirt in the gap between the teeth and gums has been removed.
モニター10人が各例の歯ブラシを使用し、毛先の撓み度を下記評価基準にて評価した。モニター10人の平均点が2.5点以上を「A」、平均点2.0点以上2.5点未満を「B」、平均点1.5点以上2.0点未満を「C」、平均点1.5点未満を「D」とした。
(評価基準)
3点:毛先の撓みを非常に感じる。
2点:毛先の撓みを感じる。
1点:毛先の撓みをあまり感じない。
0点:毛先の撓みを感じない。
[歯茎を面で清掃する実感]
モニター10人が各例の歯ブラシを使用し、歯茎を面で清掃する実感を下記評価基準にて評価した。モニター10人の平均点が2.5点以上を「A」、平均点2.0点以上2.5点未満を「B」、平均点1.5点以上2.0点未満を「C」、平均点1.5点未満を「D」とした。
(評価基準)
3点:歯茎を面で清掃する実感を非常に感じる。
2点:歯茎を面で清掃する実感を感じる。
1点:歯茎を面で清掃する実感をあまり感じない。
0点:歯茎を面で清掃する実感を感じない。 [Degree of deflection of hair ends]
Ten monitors used the toothbrushes of each example, and evaluated the degree of bending of the bristles according to the following evaluation criteria. The average score of 10 monitors is “A” when the average score is 2.5 or higher, “B” when the average score is 2.0 or higher and lower than 2.5, and “C” when the average score is 1.5 or higher and lower than 2.0. The average score of less than 1.5 was designated as “D”.
(Evaluation criteria)
3 points: I feel the bending of the hair very much.
2 points: Feels bending of the hair tip.
1 point: Feels little bending of the hair tip.
0 point: The hair tip does not feel bent.
[A feeling of cleaning the gums on the surface]
Ten monitors used the toothbrushes of each example, and the actual feeling of cleaning the gums on the surface was evaluated according to the following evaluation criteria. The average score of 10 monitors is “A” when the average score is 2.5 or higher, “B” when the average score is 2.0 or higher and lower than 2.5, and “C” when the average score is 1.5 or higher and lower than 2.0. The average score of less than 1.5 was designated as “D”.
(Evaluation criteria)
3 points: I feel the actual feeling of cleaning the gums on the surface.
2 points: Feeling that the gums are cleaned on the surface.
1 point: I do not feel the actual feeling of cleaning the gums on the surface.
0 point: I do not feel the actual feeling of cleaning the gums on the surface.
比較例1~4の歯ブラシは、植毛本数が2500本/cm2未満であったため、歯茎を面で刷掃する実感が不充分であった。
比較例4,5の歯ブラシは、(A/B)の値が40[1/cm2]未満であったため、毛先の撓み感が不充分であった。 The toothbrushes of Examples 1 to 5 in which the flocking density is 2500 pieces / cm 2 or more and the value of (A / B) is 40 [1 / cm 2 ] or more have a good feeling of bending and a high cleaning feeling. It was also excellent in the sense of brushing the gums on the surface.
In the toothbrushes of Comparative Examples 1 to 4, the number of flocks was less than 2500 / cm 2 , so that the actual feeling of brushing the gums on the surface was insufficient.
Since the toothbrushes of Comparative Examples 4 and 5 had a value of (A / B) of less than 40 [1 / cm 2 ], the bristles of the bristles were insufficient.
1a ハンドル体
10 ヘッド部
11a,11b 植毛穴
12a,12b,12d,12e,12f,12g,12h,12i,12j 毛束
α,γ,ε,η 中央毛束群
β,δ,ζ,θ 外側毛束群 1, 2, 3, 4
Claims (3)
- 先端にヘッド部が設けられたハンドル体を備え、前記ヘッド部の植毛面に用毛の毛束が植設された歯ブラシにおいて、
植毛密度が2500本/cm2以上であり、
(JIS S 3016に従って測定された垂直毛腰強度A[N/cm2])/(下記測定方法により測定された水平毛腰強度B[N])の値(A/B)が40[1/cm2]以上である歯ブラシ。
<水平毛腰強度の測定方法>
被摺動体を下記(a)~(d)の摺動条件で毛束に摺動させ、被摺動体にかかった摺動方向の最大荷重を水平毛腰強度Bとする。
[摺動条件]
(a)2本以上の円柱状の棒状体(ステンレス製、直径:0.5mm、最大表面粗さRa:0.4mm)が互いに平行に一定間隔(棒状体の中心同士で3mm間隔)で配列された被摺動体を用いる。
(b)被摺動体と植毛面とを互いに平行に配置する。
(c)最長毛束の先端から植毛面側1mmの位置で棒状体が接触すると共に歯ブラシの長手方向と棒状体の長手方向とが互いに垂直になるように、被摺動体を往復移動させる。
(d)被摺動体の移動速度を10mm/分とする。 In a toothbrush provided with a handle body provided with a head portion at the tip, and a hair bundle of hairs is implanted on the flocked surface of the head portion,
The flocking density is 2500 / cm 2 or more,
The value (A / B) of (vertical bristle strength A [N / cm 2 ] measured according to JIS S 3016] / (horizontal bristle strength B [N] measured by the following measurement method) is 40 [1 / cm < 2 >] or more.
<Measurement method of horizontal fur waist strength>
The sliding body is slid on the bristle bundle under the following sliding conditions (a) to (d), and the maximum load in the sliding direction applied to the sliding body is defined as horizontal bristle strength B.
[Sliding conditions]
(A) Two or more cylindrical rod-shaped bodies (made of stainless steel, diameter: 0.5 mm, maximum surface roughness Ra: 0.4 mm) are arranged in parallel with each other at regular intervals (3 mm intervals between the centers of the rod-shaped bodies). Use the object to be slid.
(B) The sliding body and the flocked surface are arranged in parallel to each other.
(C) The sliding body is reciprocated so that the rod-shaped body comes into contact at a position 1 mm from the tip of the longest hair bundle and the longitudinal direction of the toothbrush and the longitudinal direction of the rod-shaped body are perpendicular to each other.
(D) The moving speed of the sliding object is 10 mm / min. - 毛束の少なくとも一つは、毛束径が2.5mm以上とされている、請求項1に記載の歯ブラシ。 The toothbrush according to claim 1, wherein at least one of the hair bundles has a hair bundle diameter of 2.5 mm or more.
- 毛束の少なくとも一つは、毛束径が3.0mm以上であり、
毛束全体のプロファイルが、ヘッド部の短手方向における中央部の毛丈が最も高く、両側に向かうにつれて毛丈が漸次低くなるドーム型である、請求項2に記載の歯ブラシ。 At least one of the hair bundles has a hair bundle diameter of 3.0 mm or more,
The toothbrush according to claim 2, wherein the profile of the entire hair bundle is a dome shape in which the hair length at the center portion in the short direction of the head portion is the highest, and the hair height gradually decreases toward both sides.
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- 2013-04-26 WO PCT/JP2013/062383 patent/WO2013164986A1/en active Application Filing
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JP2015123245A (en) * | 2013-12-26 | 2015-07-06 | ライオン株式会社 | Toothbrush and electric toothbrush |
CN105828746A (en) * | 2013-12-26 | 2016-08-03 | 狮王株式会社 | Toothbrush and electric toothbrush |
WO2015098695A1 (en) * | 2013-12-26 | 2015-07-02 | ライオン株式会社 | Toothbrush and electric toothbrush |
CN105828746B (en) * | 2013-12-26 | 2017-10-24 | 狮王株式会社 | Toothbrush and electric toothbrush |
WO2016035775A1 (en) * | 2014-09-02 | 2016-03-10 | 三菱鉛筆株式会社 | Toothbrush and method for manufacturing toothbrush |
JP2016049390A (en) * | 2014-09-02 | 2016-04-11 | 三菱鉛筆株式会社 | Toothbrush and manufacturing method of the same |
KR102291109B1 (en) * | 2014-10-29 | 2021-08-17 | 주식회사 엘지생활건강 | Toothbrush |
KR20160050312A (en) * | 2014-10-29 | 2016-05-11 | 주식회사 엘지생활건강 | Toothbrush |
JP2016209373A (en) * | 2015-05-12 | 2016-12-15 | 三菱鉛筆株式会社 | Toothbrush and production method of the same |
WO2018025751A1 (en) * | 2016-08-03 | 2018-02-08 | ライオン株式会社 | Toothbrush |
JP2018019876A (en) * | 2016-08-03 | 2018-02-08 | ライオン株式会社 | toothbrush |
JP2018174989A (en) * | 2017-04-03 | 2018-11-15 | サンスター株式会社 | Toothbrush |
JP2019208973A (en) * | 2018-06-07 | 2019-12-12 | 花王株式会社 | toothbrush |
JP7117901B2 (en) | 2018-06-07 | 2022-08-15 | 花王株式会社 | toothbrush |
JP2020168465A (en) * | 2020-07-07 | 2020-10-15 | サンスター株式会社 | toothbrush |
Also Published As
Publication number | Publication date |
---|---|
KR102047148B1 (en) | 2019-11-20 |
KR20150014904A (en) | 2015-02-09 |
JPWO2013164986A1 (en) | 2015-12-24 |
CN104284611B (en) | 2016-05-18 |
CN104284611A (en) | 2015-01-14 |
JP6019111B2 (en) | 2016-11-02 |
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