CN1543890A - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- CN1543890A CN1543890A CNA2004100432124A CN200410043212A CN1543890A CN 1543890 A CN1543890 A CN 1543890A CN A2004100432124 A CNA2004100432124 A CN A2004100432124A CN 200410043212 A CN200410043212 A CN 200410043212A CN 1543890 A CN1543890 A CN 1543890A
- Authority
- CN
- China
- Prior art keywords
- synthetic filaments
- toothbrush
- bristle
- conical
- shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
Abstract
A toothbrush characterized in that it uses a synthetic monofilament (18) having a taper having a ratio p specified by the formula: p = s/S0 = a . x<(0.85 - a)> (0.05 </= a </= 0.65) wherein s represents, when three dimensional coordinates (x, y, z) are set with an origin point (0, 0, 0) at the tip of the monofilament and the central axis of the momofilament is conformed to the +x axis of said coordinates, a cross-sectional area in the direction of the yz plane at an arbitrary position in the range of 0.1 mm to 8.0 from the tip in the tapered part (20) of the monofilament , and S0 represents the cross sectional area in the direction of the yz plane at the position of the monofilament showing the maximum diameter. The toothbrush has filament tips being easy to enter between teeth and into a pocket portion around a tooth and a triangle portion between teeth.
Description
Technical field
The present invention relates to a kind of toothbrush, to accumulate between tooth and the tooth, the difficulty of the intersection of tooth and gum etc. is removed tartar cleans the effect height with water, with the contact condition softness of gum, use feeling is good.
Background technology
Be prevention periodontal disease and this two big dental disorder of damaging by worms, removing tartar with toothbrush is important method, thinks scouring method and to wash away the method for cleaning with water that method etc. brushes teeth with the high-quality green tea end be effective to the removal tartar in recent years.
Past, about using the toothbrush of the bristle that constitutes by synthetic silk, when cleaning with water, douche etc. hinders gum because of the high-quality green tea damaged on end, and the toothbrush of use adopts the bristle of thin softness.But though this bristle has soft feeling, the stiffness of hair is low, and it is insufficient except that the power of tartar to die, and has the low shortcoming of durability.
In addition, in order to make the high-quality green tea end enter the recesses such as intersection of tooth and gum easily, the toothbrush that high-quality green tea end attrition process is tapered also is well-known, but the length of this tapered portion is short, be about 1mm at most, so can not make and clean effect and soft feeling with water and improve, the bristle that is round shape with common high-quality green tea end does not almost have difference.
Tapered portion is become long and sharp-pointed bristle by chemical treatment, the bristle class (Japan is real to open clear 57-12934 number, opens clear 57-65632 communique in fact) that also is used for brush usefulness, cosmetic, washes one's face and use etc.
But, bristle class in the past with tapered portion, what have does not have a suitable conical in shape, for example when tapered portion is long or meticulous, have following problems, promptly Mao stiffness is low, produce very big bending when brushing teeth, make the high-quality green tea end entering, clean effect with water, the massage effect of gum reduced.Otherwise, too short or cross when thick when tapered portion, there is following problems, promptly be difficult to enter triangle portion between position and periodontal recess between tooth, tooth, the effect of cleaning with water at these positions reduces.
The present invention is developed in order to address the above problem, its purpose is to provide a kind of toothbrush, the high-quality green tea end of this toothbrush enters triangle portion between position and periodontal recess between tooth, tooth easily, to accumulate between tooth and the tooth, tartar that the difficulty of the intersection of tooth and gum etc. is removed clean the effect height with water, contact with gum is soft, use feeling is good.
Summary of the invention
In order to achieve the above object, toothbrush of the present invention is that the synthetic filaments bundle with the tapered shape of high-quality green tea end becomes pieces, this pieces implantation toothbrush head is formed, this toothbrush is characterised in that, its use has the synthetic filaments of conical in shape, the conical in shape of above-mentioned synthetic filaments is to constitute like this, promptly set tip with this synthetic filaments as initial point (0,0,0) 3 dimension coordinate (X, Y, Z), the central shaft that makes above-mentioned synthetic filaments along this coordinate+during X-axis, the sectional area s from the YZ in-plane of the tapered portion of most advanced and sophisticated 0.1mm to 8.0mm any part of above-mentioned synthetic filaments is with the sectional area S of the YZ in-plane of the maximum gauge portion of above-mentioned synthetic filaments
0Ratio P specific according to following formula:
p＝s/S
0＝a·x
(0.85-a)??????????????????(0.05≤a≤0.65)
In addition, the parameter a in the formula is set in 0.10≤a≤0.45 scope better.
The part from most advanced and sophisticated 0.1mm to 8.0mm of the tapered portion of above-mentioned synthetic filaments has the crooked recovery rate B that obtains according to following (a)～(g) step
R(%), preferably should bending recovery rate B
RBe according to B
R〉=60 is specific.
(a) will not have crooked synthetic filaments to reel and be fixed on the metal cylindrical rod that diameter is 10mm, the bristle coiling direction is vertical with respect to the cylinder major axis;
(b) under (a) state, be immersed in 23 ± 4 ℃ of water 24 hours;
(c) then, under (a) state, be immersed in 90 seconds in 37 ± 2 ℃ of water;
(d) then, under (a) state, be immersed in 23 ± 4 ℃ of water 1 minute;
(e) unload synthetic filaments from metal cylindrical rod, move on to and left standstill in the vessel that 23 ± 4 ℃ of water are housed 1 hour;
(f) lightly water is wiped, measured the radius of curvature from most advanced and sophisticated 0.1mm to 8mm part of synthetic filaments;
(g) suppose that the measurement result in resulting each the position radius of curvature of (f) step is r, calculate the crooked recovery rate B at each position with following formula
R(%):
And, can have tapered portion at the two ends of above-mentioned synthetic filaments, with this synthetic filaments in the central portion carry out bending, plant hair at above-mentioned toothbrush head.The tapered portion that also can make the synthetic filaments two ends has different shapes.
Toothbrush of the present invention is that the synthetic filaments bundle with the tapered shape of high-quality green tea end becomes pieces, this pieces implantation toothbrush head is formed, this toothbrush is characterised in that, its use has the synthetic filaments of conical in shape, the conical in shape of above-mentioned synthetic filaments is to constitute like this, and promptly the ratio from the bristle diameter of the bristle diameter at conical tip 0.1mm, 1mm, each position of 3mm and synthetic filaments maximum gauge portion is respectively 5～35%, 35～60%, 60～90%.
Best, with the bristle stiffness from conical tip 0.1mm position of above-mentioned synthetic filaments be made as from the bristle stiffness at conical tip 3mm position 10% in.
And synthetic filaments preferably has conical in shape, and this conical in shape is to constitute like this, and promptly the ratio from the bristle diameter of the bristle diameter at conical tip 5mm, each position of 8mm and synthetic filaments maximum gauge portion is respectively 70～95%, 80～100%.
Can have tapered portion at the two ends of synthetic filaments, after portion carries out bending in the central with this synthetic filaments, implant above-mentioned toothbrush head.
By making the toothbrush of said structure, when brushing teeth, sharp-pointed tapered portion enters position between tooth easily, particularly enters triangle portion between periodontal recess and tooth easily, these parts is cleaned with water effectively, so can improve the tartar clearance.And the high-quality green tea end is also good to the stimulation of gum, can obtain soft sense of touch, and use feeling significantly improves, and also can improve durability simultaneously.
Description of drawings
Fig. 1 is the schematic enlarged side view of the synthetic filaments implanted of the toothbrush head of the toothbrush of a form of implementation of the present invention.
Fig. 2 is the side view of toothbrush head of the toothbrush of form of implementation of the present invention.
Fig. 3 is the vertical view of the toothbrush of form of implementation of the present invention.
Fig. 4 is the schematic amplification plan view of seeing from the Z-direction of the used synthetic filaments of the toothbrush of above-mentioned form of implementation.
Fig. 5 is the schematic amplification plan view of other shape example of the used synthetic filaments of expression toothbrush of the present invention.
Fig. 6 is the schematic amplification plan view of another other shape example of the used synthetic filaments of expression toothbrush of the present invention.
Fig. 7 is the key diagram of asking method of the crooked recovery rate of synthetic filaments.
Fig. 8 is the schematic amplification plan view of the used synthetic filaments of other form of implementation of the present invention.
The specific embodiment
Below, with reference to accompanying drawing form of implementation of the present invention is described.
Fig. 1～Fig. 4 represents the 1st form of implementation of toothbrush of the present invention.
Among the figure, symbol 10 is handles of toothbrush, the 12nd, toothbrush head, the 14th, plant hair side, the 16th, pieces, the 18th, the synthetic filaments of formation pieces 16, the 20th, be formed at the tapered portion at synthetic filaments 18 tips, the toothbrush of illustrated example is that the synthetic filaments 18 that several two ends have a tapered portion 20,20 is restrainted into pieces 16, and the pieces 16 that this synthetic filaments 18 is restrainted is bent to two from its central portion, implants that toothbrush head 12 forms.
The occasion of the 1st form of implementation, employing has the synthetic filaments 18 by the specific conical in shape of (1) formula, this synthetic filaments 18 as shown in Figure 4, setting is tieed up coordinate (x with the tip of synthetic filaments 18 as 3 of initial point zero (0,0,0), y, z), make silk 18 central shaft along the xyz coordinate+during the x axle, rise to the sectional area s of the silk 18 of the yz in-plane of the arbitrary portion of 8.0mm and the yz in-plane sectional area S of the maximum gauge portion of silk 18 from the most advanced and sophisticated 0.1mm of silk
0Ratio p satisfy following formula:
p＝s/S
0＝a·x
(0.85-a)???……(1)
In the formula, 0.05≤a≤0.65
In addition, the z axle is to extend to the direction vertical with paper.Several synthetic filaments 18 with this conical in shape are done up becomes pieces 16, as shown in Figures 2 and 3, plants hair with the method for regulation at toothbrush head 12.
The material of above-mentioned synthetic filaments 18 can use synthetic resin such as polyester, polyamide, polyolefin, but begins preferably to use polyester from the face of taper processing.The material that comprises the toothbrush handles 10 of toothbrush head 12 can use normally used synthetic resin such as acrylic resin, AS resin.
The total length L of each tapered portion 20,20.Make 5～15mm, preferably make 8～12mm, the maximum dimension D of synthetic filaments 18 is made 0.15～0.25mm, preferably makes 0.17～0.20mm.In addition, the bristle lengths (fibre length) from planting hair side 14 of the synthetic filaments 18 behind the implantation toothbrush head 12 is the same with common toothbrush, be about 10～13mm, even but bristle lengths is less than 8mm, so long as satisfy the conical in shape of above-mentioned (1) formula and parameter a, also can obtain effect of the present invention.
About the manufacture method of toothbrush self,,, can utilize existing well-known method so there is no particular limitation as long as pieces 16 is fixed on the toothbrush head 12 really.For example, as shown in Figure 4, have at two ends under the situation of synthetic filaments 18 of tapered portion 20, can utilize horizontal line to plant a mao method, promptly use sheet metal (horizontal line) that pieces is converted into two, nail advances to plant in the pore, in addition, under the situation of the synthetic filaments 18 that only at one end is formed with tapered portion 20 shown in Figure 6, can utilize facture and hot melt etc. in the type.
Have in use under the situation of synthetic filaments 18 of above-mentioned conical in shape,, particularly also enter triangle portion between periodontal recess and tooth easily, so can improve the tartar clearance because the tip of sharp-pointed tapered portion 20 enters position between tooth easily.
In addition, because the high-quality green tea end can easily insert narrow part,, also can improve the durability of bristle so the Shi Buxu that brushes teeth applies excessive power.Also good because of the stimulation that the high-quality green tea end causes to gum, can obtain soft sense, use feeling is significantly improved.
In order to obtain above-mentioned effect all sidedly, the parameter a in above-mentioned (1) formula must satisfy the condition of 0.05≤a≤0.65, and the condition that satisfies 0.10≤a≤0.45 is better.When parameter a does not satisfy the condition of 0.05≤a≤0.65,, can not bring into play above-mentioned effect even have the bristle of the conical in shape shown in (1) formula.
That is, parameter a less than 0.05 situation under because tapered portion 20 is very thin,, produce very big bending when brushing teeth so " stiffness " intensity that bristle had is low excessively, the entering of high-quality green tea end, clean effect with water, to the massage effect reduction of gum.In addition, durability is also reduced.Otherwise, parameter a greater than 0.65 situation under because tapered portion 20 can not form enough carefully on the high-quality green tea extreme direction, so be difficult to enter triangle portion between position and periodontal recess between tooth, tooth, what make these positions cleans the effect reduction with water.
In above-mentioned the 1st form of implementation, as shown in Figure 4, illustration left and right sides tapered portion 20,20 is set as identical conical in shape, is the situation of identical parameter a, as long as but satisfy the scope (0.05≤a≤0.65) of parameter a, also can be for example as shown in Figure 5, to about each tapered portion 20
1, 20
2Adopt different parameter value a
1, a
2, make the conical in shape difference of left and right end portions.In addition, be not limited to as Fig. 4 or only be to form tapered portion 20,20 at both ends as shown in Figure 5
1, 20
2Synthetic filaments, also can be as shown in Figure 6 only at one end portion form the synthetic filaments 18 of tapered portion 20.
In addition, the pieces 16 of being planted on toothbrush head 12 though only used the synthetic filaments 18 with above-mentioned conical in shape, is not limited to this, as long as synthetic filaments 18 of the present invention is below 25% with the ratio of planting whole bristles of being implanted on the hair side 14, just can bring into play above-mentioned effect.In this case, in 1 pieces 16, can plant hair by the ratio mixing bunchy more than 25% with having the synthetic filaments 18 of above-mentioned conical in shape and the silk of other shape, in addition, also the pieces 16 that only is made of the synthetic filaments 18 with above-mentioned conical in shape and the pieces that only is made of other the synthetic filaments of common shape can be planted hair by the ratio mixed configuration more than 25% all planting on the hair side.
And the section configuration of synthetic filaments 18 as long as satisfy the scope of above-mentioned (1) formula and parameter a, can adopt circle, ellipse, various section configurations such as square.
Below, the 2nd form of implementation of toothbrush of the present invention is illustrated.
The 2nd form of implementation is in the Tooth-brush structure identical with the 1st above-mentioned form of implementation, with the crooked recovery rate B from most advanced and sophisticated 0.1mm to 8.0mm part of synthetic filaments 18
R(%) set B for
R〉=60.
As mentioned above, rising to the crooked recovery rate B of 8.0mm part with synthetic filaments 18 from most advanced and sophisticated 0.1mm
R(%) set B for
RUnder the situation of 〉=60 scope,,, can further improve and clean actual effect with water so enter between position and periodontal recess between tooth, tooth intraoral tiny position such as triangle portion easily because conical tip is sharp-pointed and soft.In addition, because restorative good to bending, so also can improve the durability of bristle.In order further to bring into play this effect, preferably be set as B
R〉=80.
Above-mentioned crooked recovery rate B
R(%) at B
RUnder＜60 the situation, because the conical tip of synthetic filaments 18 loses flexibility, so bristle is difficult to enter intraoral tiny position when brushing teeth usually.And restorative poor for bending is so the durability of bristle also reduces.
The above-mentioned crooked crooked B that recovers
RObtain as follows.
(a) will can't see crooked synthetic filaments 18 fully reels as shown in Figure 7 and is fixed on the metal system cylindrical rod 30 of diameter 10mm.At this moment, notice that bristle coiling direction 18c and cylinder major axis c are perpendicular.
(b) under the state of (a), be immersed in 23 ± 4 ℃ of water 24 hours;
(c) then, under (a) state, be immersed in 90 seconds in 37 ± 2 ℃ of water;
(d) then, under (a) state, be immersed in 23 ± 4 ℃ of water 1 minute;
(e) synthetic filaments 18 is unloaded down from metal system cylindrical rod 30, moved on to and left standstill in the glassware that 23 ± 4 ℃ of water are housed 1 hour;
(f) lightly water is wiped, measured the radius of curvature that clutch becomes monofilament 18 most advanced and sophisticated 0.1mm to 8mm parts;
(g) measurement result of supposing the radius of curvature at resulting each position when (f) step is r, is calculated as follows out the crooked recovery rate B at each position
R(%):
According to above-described form of implementation, can obtain such toothbrush, it is the synthetic filaments that its use has the tapered portion that is made of specific conical in shape, so the high-quality green tea end of synthetic filaments enters triangle portion between position and periodontal recess between tooth, tooth easily, make and accumulate between tooth and the tooth and the difficulty of tooth and gum intersection etc. is removed tartar cleans the effect raising with water, and feeling of contacting on gum is also soft, and use feeling is good.
In addition, because with the crooked recovery rate B from the part of most advanced and sophisticated 0.1mm to 8.0mm of synthetic filaments
R(%) be made as B
R〉=60, so it enters intraoral tiny position such as triangle portion between position and periodontal recess between tooth, tooth easily, can improve more and clean actual effect with water, and can improve the durability of bristle.
Below, the 3rd form of implementation of toothbrush of the present invention is described.
Fig. 8 represents the 3rd form of implementation of toothbrush of the present invention.
This form of implementation be with the toothbrush of the above-mentioned the 1st and the 2nd form of implementation of Fig. 1～shown in Figure 3 with spline structure on, the synthetic filaments 18 that constitutes pieces 16 uses the synthetic filaments 18 with following such conical in shape, on toothbrush head 12, plant hair, this conical in shape is to constitute like this, promptly as Fig. 8 in detail shown in, the bristle diameter d from conical tip 0.1mm, 1mm, each position of 3mm
0.1, d
1, d
3Be respectively 5～35%, 35～60%, 60～90% with the ratio of the bristle diameter D at synthetic filaments 18 maximum gauge positions.
The material of above-mentioned synthetic filaments 18, the same with above-mentioned form of implementation, can use synthetic resin such as polyester, polyamide, polyolefin, comprise the material of the toothbrush handles of toothbrush head 12, can use used synthetic resin usually such as acrylic resin, AS resin.The tapered portion 20 of synthetic filaments 18
3Total length be 8～15mm, be preferably 8～10mm, the bristle diameter D of maximum gauge portion is 0.15～0.25mm, is preferably 0.17～0.20mm.The bristle lengths (fibre length) from planting hair side 14 of the synthetic filaments 18 after planting hair on the toothbrush head 12, the same with common toothbrush, be about 10～13mm.
The manufacture method of toothbrush self, as long as pieces 16 is fixed really, so there is no particular limitation, for example can utilize horizontal line to plant the existing methods that generally know that such as Mao Fa, it is with sheet metal (horizontal line) pieces 16 to be curved eighty percent discount that this horizontal line is planted a mao method, squeezes into the planting in the pore of toothbrush head 12 again.
The synthetic filaments 18 that has above-mentioned conical in shape in use is made under the situation of toothbrush, because sharp-pointed tapered portion 20
3The tip enter portion between tooth well, particularly enter triangle portion between periodontal recess, tooth easily, so can improve the tartar clearance, and the high-quality green tea end is also good to the stimulation of gum, can obtain soft tactility, can significantly improve use feeling.
In addition, owing to the high-quality green tea end arrives position and the intersection of tooth and gum between tooth, the recess that forms because of tooth is misaligned etc. easily, can remove swill and tartar effectively, so clean the effect height with water, and because high-quality green tea end softness, so can clean the softer periodontal recess of gum etc. effectively with water.
Owing to can give good stimulation with not damaging gum,, also the prevention decayed tooth be had very big effect so can prevent periodontal disease much less.Again,,, also can prevent to open, durability is also improved because of use causes bristle so do not need to apply excessive power when cleaning with water because the high-quality green tea end inserts easily narrow part.
Use is from the bristle diameter d at cone point 0.1mm, 1mm, each position of 3mm
0.1, d
1, d
3Depart under the situation of synthetic filaments of above-mentioned condition, can not bring into play above-mentioned effect.Promptly, if the ratio of the bristle diameter D of the maximum gauge portion of the bristle diameter at each position of tapered portion and synthetic filaments 18 is too small, then tapering part is very thin, so " stiffness " that bristle has is too small, produce very big bending when cleaning with water, make the high-quality green tea end entering, clean effect with water, the massage effect of gum reduced.And durability also reduces.
Otherwise, if the ratio of the bristle diameter D of the bristle diameter at each position of tapered portion and maximum gauge portion is excessive, then tapering part can not become enough thin at the high-quality green tea extreme direction, so be difficult to enter triangle portion between position and periodontal recess between tooth, tooth, the effect of cleaning with water to these positions reduces, and feeling of contacting with gum is also bad.
In addition, in above-mentioned form of implementation, the bristle of being implanted on toothbrush head 12 has only used the synthetic filaments 18 with above-mentioned conical in shape, but is not limited to this, as long as above-mentioned synthetic filaments 18 be more than 50% at the ratio of planting whole bristles of being implanted on the hair side 14, just can bring into play above-mentioned effect.In this case, in 1 pieces 16, can plant hair by the ratio mixing bunchy more than 50% with having the synthetic filaments 18 of above-mentioned conical in shape and the silk of other shape, in addition, also the pieces 16 that only is made of the synthetic filaments 18 with above-mentioned conical in shape and the pieces that only is made of other the synthetic filaments of common shape can be planted hair by the ratio mixed configuration more than 50% all planting on the hair side.
In addition, about the tapered portion 20 of above-mentioned synthetic filaments 18
3Conical in shape, at above-mentioned bristle diameter d
0.1, d
1, d
3On the basis at each position, if again to bristle diameter d from conical tip 5mm, each position of 8mm
5, d
8Stipulate thinner size, be 70～95%, 80～100% of maximum dimension D, can more effectively bring into play above-mentioned institute and produce effect.
Also have, if with the bristle stiffness from conical tip 0.1mm position of above-mentioned synthetic filaments 18 be made as from the bristle stiffness at conical tip 3mm position 10% in, more satisfactory is to be made as in 5%, then conical tip not only sharply, but also can give soft sense, can give good stimulation to gum, can significantly improve use feeling.In addition, use the bristle of this hardness, can also clean with water, can further improve massage effect gum than the longer time of brushing teeth usually.
The hardness of above-mentioned bristle surpasses at 10% o'clock, and conical tip loses sensation of softness, and the tingle possibility of pain of gum of user improves.Therefore, feeling of contacting with gum is bad, can not massage gum with adequate time.
According to this form of implementation, its use has the synthetic filaments of conical in shape, the conical in shape of this synthetic filaments is to constitute like this, promptly from conical tip 0.1mm, 1mm, the ratio of the bristle diameter of the maximum gauge portion of the bristle diameter at each position of 3mm and synthetic filaments is respectively 5～35%, 35～60%, 60～90%, so can obtain such toothbrush, be that the high-quality green tea end enters position and periodontal recess between tooth easily, triangle portion between tooth, make accumulate between tooth and the tooth and tartar that the difficulty of the intersection of tooth and gum etc. is removed clean the effect raising with water, and with the contact condition of gum also be soft, use feeling is good.
In addition, since with the bristle stiffness from conical tip 0.1mm position of synthetic filaments be set as be from the bristle stiffness at conical tip 3mm position 10% in, so conical tip not only sharply but also can give soft feeling, can be given good stimulation to gum, can significantly improve use feeling.Use has the bristle of this hardness, can also be to clean with water than the common longer time, and more a step is improved the massage effect to gum.
Embodiment
The present invention has carried out sensory evaluation test for the influence to the use feeling of toothbrush of the shape of the tapered portion of investigating synthetic filaments by the shape that changes tapered portion.
Embodiment 1
By 15 testees the use feeling that different parameter a in above-mentioned (1) formula brings is carried out evaluation test.It the results are shown in table 1.
Table 1
Use feeling with the corresponding toothbrush of conical in shape
A: parameter ◎: tangible sensation/very good is arranged
Zero: feel/good
*: do not feel/bad
Table 1 clearly illustrates that, when parameter a satisfies the condition of 0.05≤a≤0.65, bristle with conical in shape of (1) formula defined obtains so actual use feeling evaluation, promptly the dirt of narrow is removed " having " sensation, and the sensation that contacts with gum is " well " also.Particularly parameter a satisfies under the situation of condition of 0.10≤a≤0.45, obtains following high evaluation, i.e. the sensation that the dirt of narrow is removed " very obvious ", and the sensation that contacts with gum is " very good " also.
Embodiment 2
In order to investigate the crooked recovery rate B of synthetic filaments
RTo the influence of the use feeling and the durability of toothbrush, made by the various crooked recovery rate B shown in the table 2
RThe toothbrush that constitutes, by 30 testees for because of crooked recovery rate B
RDifference and the use feeling and the durability that cause have been carried out evaluation test.It the results are shown in table 3.
Table 2
The crooked recovery rate of the tip portion of the synthetic filaments that is used to estimate
| Bristle types | Crooked recovery rate B from bristle high-quality green tea end 0.1mm part to the 8.0mm part R(％) |
| ????A ????B ????C ????D | ????B R≥80 ????80＞B R≥60 ????60＞B R≥40 ????40＞B R |
Table 3
Use feeling and durability with the corresponding toothbrush of crooked recovery rate
| Bristle types | The high-quality green tea end enters into the sensation at tiny position *1 | The durability of bristle *2 |
| ????A ????B ????C ????D | ??○ ????△ ????× ????× | ??○ ????△ ????× ????× |
Zero: tangible sensation/very good is arranged
△: some sensation/all right
*: do not feel/bad
* the feeling evaluation that carries out of 1:30 name testee
* 2: the stretching degree of using the bristle high-quality green tea end after 1 month is estimated by the perusal outward appearance
Be clear that by table 3 clutch becomes the crooked recovery rate B of the part of the most advanced and sophisticated 0.1mm to 8.0mm of monofilament
R(%) be B
R〉=60 o'clock, obtain following evaluation, promptly the high-quality green tea end enters into tiny position " " sensation, and the durability of bristle is " good " also.Particularly at B
R, obtained higher evaluation at 〉=80 o'clock.
Embodiment 3
For the influence of the shape of the tapered portion of investigating synthetic filaments to the use feeling of toothbrush, this toothbrush is different and special according to from the ratio of the bristle diameter of tapered portion bristle tips specific range and the bristle diameter of maximum gauge portion, as shown in table 4, made and used the high-quality green tea end to be processed into toothbrush E, F (the present invention), the G of the synthetic filaments of various conical in shape, these toothbrushes have been carried out the evaluation of actual use feeling by 30 testees.Evaluation result is shown in table 5.
Table 4
The conical in shape that is used for the toothbrush bristle tip of feeling evaluation
| Bristle types | From the bristle diameter of bristle tips specific range and the ratio (%) of maximum gauge portion | ||
| Distance from the tip | |||
| ????0.1mm | ????1mm | ????3mm | |
| ????E ????F ????G | ????0～5 ????5～35 ????35～50 | ????15～35 ????35～60 ????60～80 | ????35～60 ????60～90 ????80～100 |
Table 5
Use feeling with the corresponding toothbrush of conical in shape
Zero: feel/good
△: not too feel/not so good
*: do not feel/bad
The result of above-mentioned sensory evaluation test, toothbrush F of the present invention obtains following evaluation: the dirt to narrower part is removed " having " sensation, contact also " well " with gum, toothbrush F of the present invention uses the synthetic filaments with conical in shape, this conical in shape is to constitute like this, promptly from the bristle diameter d at cone point 0.1mm, 1mm, each position of 3mm
0.1, d
1, d
3Be respectively 5～35%, 35～60%, 60～90% with the ratio of the bristle diameter D of the maximum gauge portion of synthetic filaments.
Embodiment 4
Below, for the influence to the toothbrush use feeling of the hardness of investigating conical tip, the hardness that changes the tapered portion tip is carried out sensory evaluation test.Evaluation object is as shown in table 6, makes tooth H～K, and these toothbrushes use the tapered portion tip to be processed into the synthetic filaments of various hardness, these toothbrushes are carried out the evaluation of actual use feeling by 30 testees.Evaluation result is shown in table 7.
Table 6
The ratio of hardness of bristle tips that is used for the toothbrush of feeling evaluation
| Bristle types | The ratio of bristle tips 0.1mm position and the bristle stiffness at 3mm position *3(％) |
| ????H ????I ????J ????K | ?????????????0～5 ?????????????5～10 ?????????????10～25 ?????????????25～50 |
* 3:H.R.Rawls etc. is according to Mathematical Modeling (Dent.Mater., 6; 111-117, April 1990) calculate
Table 7
Usability with the corresponding toothbrush of ratio of the hardness of bristle high-quality green tea end
| Bristle types | The sensation of massage gum | The sensation that contacts with gum |
| ????H ????I ????J ????K | ??○ ????○ ????△ ????× | ??○ ????△ ????× ????× |
Zero: tangible sensation/very good is arranged
△: some sensation/all right
*: do not feel/bad
Hardness G from the bristle at each position of conical tip 0.1mm, 3mm
b, be H.R.Rawls etc. according to Mathematical Modeling (Dent.Mater., 6,111-117, April 1990), calculate with following formula:
G
b＝F
b/d
≈?3.64?E·I/A
2(3L-A)
In the formula, Fb: be applied to the power on the bristle
D: the bending when bristle tips is applied load
E: elastic modelling quantity
I: moment of inertia
A: from the stiff end to F
bThe distance of application point
L: the distance from the stiff end to the bristle tips
In addition, if can measure, also can calculate, and, obtain screen resilience from conical tip 0.1mm, each position of 3mm with ISO hardness tester (ISO8627) without following formula.
Table 7 clearly illustrates that, with the bristle stiffness from conical tip 0.1mm position of synthetic filaments be made as from the bristle stiffness at conical tip 3mm position 10% in the time, obtain such evaluation, promptly gum is massaged " having " sensation, the sensation that contacts with gum is " well " also.When particularly being made as in 5%, to the massage of gum with gum contact feel that both obtain high evaluation.
More than, form of implementation of the present invention and embodiment are illustrated, but the present invention is not limited to this, can carry out many variations according to main aim of the present invention.
Claims (3)
1. toothbrush, this toothbrush are that the synthetic filaments bundle with the tapered shape of high-quality green tea end becomes pieces, this pieces are implanted toothbrush head forms,
This toothbrush is characterised in that, its use has the synthetic filaments of conical in shape, the conical in shape of above-mentioned synthetic filaments is to constitute like this, promptly the ratio from the bristle diameter of the bristle diameter at each position of conical tip 0.1mm, 1mm, 3mm and synthetic filaments maximum gauge portion is respectively 5～35%, 35～60%, 60～90%, the bristle stiffness from conical tip 0.1mm position of above-mentioned synthetic filaments be from the bristle stiffness at conical tip 3mm position 10% in.
2. toothbrush according to claim 1, above-mentioned synthetic filaments has conical in shape, this conical in shape is to constitute like this, and promptly the ratio from the bristle diameter of the bristle diameter at conical tip 5mm, each position of 8mm and synthetic filaments maximum gauge portion is respectively 70～95%, 80～100%.
3. toothbrush according to claim 1 and 2 has tapered portion at the two ends of above-mentioned synthetic filaments, after portion carries out bending in the central with this synthetic filaments, implants above-mentioned toothbrush head.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP309205/1999 | 1999-10-29 | ||
| JP309196/1999 | 1999-10-29 | ||
| JP30919699A JP2001120358A (en) | 1999-10-29 | 1999-10-29 | Toothbrush |
| JP30920599A JP3943780B2 (en) | 1999-10-29 | 1999-10-29 | toothbrush |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008173710A Division CN1178612C (en) | 1999-10-29 | 2000-10-25 | Toothbrush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1543890A true CN1543890A (en) | 2004-11-10 |
Family
ID=26565866
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008173710A Expired - Lifetime CN1178612C (en) | 1999-10-29 | 2000-10-25 | Toothbrush |
| CNA2004100432124A Pending CN1543890A (en) | 1999-10-29 | 2000-10-25 | Toothbrush |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008173710A Expired - Lifetime CN1178612C (en) | 1999-10-29 | 2000-10-25 | Toothbrush |
Country Status (5)
| Country | Link |
|---|---|
| KR (2) | KR20050092460A (en) |
| CN (2) | CN1178612C (en) |
| AU (1) | AU7956700A (en) |
| HK (1) | HK1054848A1 (en) |
| WO (1) | WO2001032053A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016061869A1 (en) * | 2014-10-23 | 2016-04-28 | 广东三椒口腔用品有限公司 | Toothbrush having tapered bristles |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100456100B1 (en) * | 2002-10-31 | 2004-11-16 | 권영준 | Toothbrush Having Soft And Hard Bristles Together |
| MXPA04007627A (en) * | 2002-12-03 | 2004-11-10 | Young Jun Kwon | Toothbrush having needle-shaped bristle tapered at one end and manufacturing method thereof. |
| CN1154427C (en) * | 2003-01-03 | 2004-06-23 | 殷新中 | Method of preparing pointed brush wire |
| DE102004008618A1 (en) * | 2004-02-21 | 2005-09-08 | Geka Brush Gmbh | Brush for applying cosmetic or nourishing products |
| DE102006012003A1 (en) * | 2006-03-16 | 2007-09-20 | Braun Gmbh | Toothbrush and toothbrush head for this |
| US9655435B2 (en) | 2008-12-15 | 2017-05-23 | Glaxosmithkline Consumer Healthcare Gmbh & Co., Kg | Toothbrush bristle arrangement |
| KR100972388B1 (en) | 2009-07-31 | 2010-07-27 | 주식회사 베스트화성 | Needle-shaped hair toothbrush improved(its) polishing and penetration and manufacturing method of it |
| USD764177S1 (en) | 2014-07-31 | 2016-08-23 | Colgate-Palmolive Company | Oral care implement |
| USD858105S1 (en) | 2017-11-17 | 2019-09-03 | Colgate-Palmolive Company | Oral care implement |
| USD858997S1 (en) | 2017-11-17 | 2019-09-10 | Colgate-Palmolive Company | Tracking module for an oral care implement |
| USD893881S1 (en) | 2017-11-17 | 2020-08-25 | Colgate-Palmolive Company | Oral care apparatus |
| CN113194785A (en) | 2018-12-13 | 2021-07-30 | 高露洁-棕榄公司 | Oral care implement |
| USD883677S1 (en) | 2018-12-13 | 2020-05-12 | Colgate-Palmolive Company | Toothbrush |
| USD961269S1 (en) | 2020-07-31 | 2022-08-23 | Colgate-Palmolive Company | Oral care implement |
| USD1024571S1 (en) | 2022-06-17 | 2024-04-30 | Colgate-Palmolive Company | Oral care implement |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3145213B2 (en) * | 1992-11-06 | 2001-03-12 | ライオン株式会社 | Toothbrush |
| JP2829275B2 (en) * | 1996-05-20 | 1998-11-25 | 花王株式会社 | toothbrush |
| JP4318323B2 (en) * | 1996-06-05 | 2009-08-19 | サンスター株式会社 | toothbrush |
-
2000
- 2000-10-25 CN CNB008173710A patent/CN1178612C/en not_active Expired - Lifetime
- 2000-10-25 KR KR1020057016800A patent/KR20050092460A/en not_active Application Discontinuation
- 2000-10-25 CN CNA2004100432124A patent/CN1543890A/en active Pending
- 2000-10-25 WO PCT/JP2000/007453 patent/WO2001032053A1/en active IP Right Grant
- 2000-10-25 AU AU79567/00A patent/AU7956700A/en not_active Abandoned
- 2000-10-25 KR KR1020027005376A patent/KR100659953B1/en active IP Right Grant
-
2003
- 2003-10-08 HK HK03107234A patent/HK1054848A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016061869A1 (en) * | 2014-10-23 | 2016-04-28 | 广东三椒口腔用品有限公司 | Toothbrush having tapered bristles |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100659953B1 (en) | 2006-12-22 |
| AU7956700A (en) | 2001-05-14 |
| HK1054848A1 (en) | 2003-12-19 |
| WO2001032053A1 (en) | 2001-05-10 |
| KR20020059421A (en) | 2002-07-12 |
| CN1411349A (en) | 2003-04-16 |
| KR20050092460A (en) | 2005-09-21 |
| CN1178612C (en) | 2004-12-08 |
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