CN103732104B - Toothbrush bristle, its manufacture method and toothbrush - Google Patents
Toothbrush bristle, its manufacture method and toothbrush Download PDFInfo
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- CN103732104B CN103732104B CN201280040117.1A CN201280040117A CN103732104B CN 103732104 B CN103732104 B CN 103732104B CN 201280040117 A CN201280040117 A CN 201280040117A CN 103732104 B CN103732104 B CN 103732104B
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- branch
- main part
- toothbrush
- toothbrush bristle
- fiber
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/02—Bristles details
- A46D1/0292—Bristles having split ends
-
- 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 kind of toothbrush bristle, there is the columned main part (10) extended to top (21) from cardinal extremity (11) and the plural branch (20) being extended on described main part (10), described branch (20) makes the shape to top (21) gradually undergauge, in this toothbrush bristle (1), described main part (10), is formed with the reducing diameter part (14) towards described branch (20) gradually undergauge at the cardinal extremity (22) near branch.The cross sectional shape of described branch (20), preferably polygon.Use the present invention, excellent to the spatter property of the flank of tooth, occlusal surface and narrow part, it is possible to be easily manufactured, and the manufacture fitness of toothbrush is excellent.
Description
Technical field
The present invention relates to a kind of toothbrush bristle, its manufacture method and toothbrush.
The application based on August 18th, 2011 in the Patent 2011-178830 application claims priority of Japanese publication,
It is hereby incorporated its content.
Background technology
One toothbrush, has handle body and pieces, and described handle body has: handle portion and the head being located at its top ends
Portion, described pieces is by plural toothbrush bristle banding and plants hair and forms on head.
As toothbrush bristle, it is known to top ends towards top gradually undergauge and by the taper hair of tip and from base
End is the linear hair etc. of roughly equal diameter to top.Wherein, taper hair is owing to can enter neck portion and between cog portion etc.
Narrow part, therefore be effective for prevention periodontal disease.Additionally, taper hair is soft due to top ends, therefore can give
Contact sense excellent in oral cavity.
Although taper hair can clean narrow part, contact sense excellence well, but hair hardness is soft, therefore sometimes feels tooth
The cleaning true feeling of face and occlusal surface etc. is not enough.
For this problem, it is proposed that a kind of by the so-called tips branch hair of top ends branch.
Such as, it is proposed that such a bristle: make the cloverleaf pattern of three leaves near the cross section of cardinal extremity, tip side is divided
Zhi Chengsan, each branched hair does into a cone shape (such as patent documentation 1).
It addition, propose such a bristle fiber: be characterized in, by top layer and the core of the most bonding resin
The composite fibre that layer is constituted is constituted, and is ground tippy tea and is divided into two or more (such as patent documentation 2).
It addition, such as propose such a islands-in-sea bicomponent fibre: in the bed portion of polyester resin, be dispersed with poly-
2～5 protuberances of amide resin, i.e. have by having a protuberance of certain length and bed portion constituted from planting wool base
Composite part, thus, is simply formed with 2～5 core hairs (such as patent documentation 3) that protuberance exposes in top side.
Or, it is proposed that Apical division becomes plural brush monofilament (such as patent documentation 4).
Patent documentation 1: Japanese Patent Laid-Open 2001-169827 publication
Patent documentation 2: Japanese Patent Laid-Open 9-98837 publication
Patent documentation 3: Japanese Patent Laid-Open 9-322821 publication
Patent documentation 4: Japanese Patent Laid-Open 2006-207111 publication
Invent problem to be solved
But, the invention of patent documentation 1 has problems that: when toothbrush bristle planting hair when planting on hair side, easily
Split by mechanical shock and damaged.Especially, planting mao device by common wire type, toothbrush bristle is planted the occasion of hair,
When toothbrush bristle is supplied on feather planting machine, or toothbrush bristle is hammered into when planting hair side, there is toothbrush bristle easy
The problem split.The invention of patent documentation 2～3 has manufacturing process numerous and diverse and the problem of high cost.Sending out of patent documentation 4
Bright have the problem being difficult to control to branch length and rugosity.
Additionally, further requirement toothbrush bristle, improve the spatter property to the flank of tooth, occlusal surface and narrow part.
Summary of the invention
Therefore, it is an object of the invention to, it is provided that a kind of spatter property to the flank of tooth, occlusal surface and narrow part is excellent, appearance
Easily manufacture and the toothbrush bristle manufacturing fitness excellence of toothbrush.
For solving the means of problem
The toothbrush bristle of the present invention, has: the columned main part and the extension that extend towards top from cardinal extremity set
Putting the plural branch on described main part, described branch makes the shape of the gradually undergauge towards top,
The feature of this toothbrush bristle is, described main part, is formed towards described branch at the cardinal extremity near described branch
The gradually reducing diameter part of undergauge, on described main part, the central shaft around described main part has been leaving to form mutually edge
The length direction of described main part is that extend with the described corresponding hollow bulb of branch quantity, and is comprising described central shaft
Region be formed without hollow bulb, the cross sectional shape with described orthogonality of center shaft of described hollow bulb is formed as from described center
The shape that the outer peripheral face of axial described main part extends, described branch highlights from described hollow bulb region from each other
Arrange.
The toothbrush of the present invention, is characterized in, is had the described toothbrush bristle of the present invention by planting hair.
The manufacture method of the toothbrush bristle of the present invention, the feature of the manufacture method of this described toothbrush bristle is to have so
Operation: resinous fiber banding is made fibre bundle, on described fiber, around the central shaft of described fiber
It is leaving to form mutually the hollow bulb of the length direction extension along described fiber, and comprises the region of described central shaft not
Forming hollow bulb, the cross sectional shape with described orthogonality of center shaft of described hollow bulb is formed as from described central axial described
The shape that the outer peripheral face of fiber extends；By the arbitrary end of this fibre bundle facing to below vertical, by described fibre bundle from
Described any end face plays the partial immersion of random length in a solvent, and the periphery of described fiber is dissolved by solvent, institute simultaneously
State solvent and climb up described fiber from each other and in hollow bulb while dissolving described fiber, thus form described branch
Portion and described main body reducing diameter part.
That is, technical solution of the present invention is as follows:
(1) a kind of toothbrush bristle, has the columned main part extended towards top from cardinal extremity and is extended on
Plural branch on described main part, described branch makes the shape of the gradually undergauge towards top, at this
In toothbrush bristle, described main part, it is formed towards described branch gradually undergauge at the cardinal extremity near described branch
Reducing diameter part, on described main part, the central shaft around described main part has been leaving to form mutually along described main body
The length direction in portion is that extend with the described corresponding hollow bulb of branch quantity, and is comprising the region of described central shaft not
Forming hollow bulb, the cross sectional shape with described orthogonality of center shaft of described hollow bulb is formed as from described central axial described
The shape that the outer peripheral face of main part extends, described branch is projecting from described hollow bulb region from each other；
(2) toothbrush bristle as described in (1), the cross sectional shape of described branch is polygon；
(3) a kind of toothbrush, is planted hair just like the toothbrush bristle described in (1) or (2)；And
(4) manufacture method of a kind of toothbrush bristle as described in (1) or (2), makes fiber by resinous fiber banding
Bundle, on described fiber, the length direction that the central shaft around described fiber is leaving to form mutually along described fiber prolongs
The hollow bulb stretched, and be formed without hollow bulb in the region comprising described central shaft, described hollow bulb with described central shaft
Orthogonal cross sectional shape is formed as the shape extended from the outer peripheral face of described central axial described fiber；By described fibre bundle
Arbitrary end facing to below vertical, by described fibre bundle from described any end face the partial immersion of random length molten
In agent, the periphery of described fiber is dissolved by solvent, and the most described solvent climbs up described fiber from each other and hollow
While dissolving described fiber in portion, thus form described branch and described main body reducing diameter part.
The effect of invention
Use the toothbrush bristle of the present invention, excellent to the spatter property of the flank of tooth, occlusal surface and narrow part, easily manufacture and tooth
The manufacture fitness of brush is excellent.
Accompanying drawing explanation
Fig. 1 is the front view of the toothbrush bristle of first embodiment of the invention.
Fig. 2 is the II-II sectional view of the toothbrush bristle of Fig. 1.
Fig. 3 is the front view of the fiber of the material of the toothbrush bristle as Fig. 1.
Fig. 4 is the IV-IV sectional view of Fig. 3.
Fig. 5 is the front view of the toothbrush bristle of second embodiment of the invention.
Fig. 6 is the VI-VI sectional view of Fig. 5.
Fig. 7 is the VII-VII sectional view of Fig. 5.
Fig. 8 A is the sectional view of the toothbrush bristle of an embodiment of the present invention.
Fig. 8 B is the sectional view of the toothbrush bristle of an embodiment of the present invention.
Fig. 9 A is the sectional view of the toothbrush bristle of an embodiment of the present invention.
Fig. 9 B is the sectional view of the toothbrush bristle of an embodiment of the present invention.
Symbol description
1,100,200,300 toothbrush bristle
5 fibers
10,110,210,310 main part
11,111 cardinal extremity
12,112,212,312 main body line part
14,114,214,314 main body reducing diameter part
16,116,216,316 hollow bulb
20,120,220,320,322 branch
21,121 top
22,122 branch cardinal extremity
Detailed description of the invention
(the first embodiment)
The toothbrush bristle of first embodiment of the present invention is described referring to Figure of description.Fig. 1 is to represent this reality
Execute the toothbrush bristle of mode to be planted hair and planting the front view of state on hair side.
As it is shown in figure 1, toothbrush bristle 1 has: main part 10 and be extended on main part 10 three
Branch 20.
Main part 10 is to be planted hair at toothbrush bristle 1 to prolong to top 21 from cardinal extremity 11 when planting hair side 40
The circular cylinder shaped portion stretched.
Cylindric refer to that the cross sectional shape orthogonal with bristle lengths direction does not has the circle of corner (corner) in the whole region of bristle
The columnar shape in cross section, comprises generally cylindrical shape.The shape of main part 10 is generally a cylindrical shape, best
It is cylindric.
The cardinal extremity 11 of main part 10 refers to, is equivalent to head toothbrushes and plants the part of hair side position or plant hair use in common wire type
The occasion of two end toper hairs be bristle pars intermedia, top 21 refers to, the top ends leaving component i.e. leaves top
Part within 0.5mm (preferably 0.1mm).
In the present embodiment, main part 10, constitute substantially to top 21 from cardinal extremity 11 being formed near cardinal extremity 11
The main body line part 12 of same diameter, and be formed with main body line part 12 continuously, main part 10 is to main part 10
Main body reducing diameter part 14 with border (branch cardinal extremity) the 22 gradually undergauge of branch 20.That is, the toothbrush bristle of the present invention
The main part 10 of 1 has main body line part 12 and main body reducing diameter part.
Toothbrush bristle 1 is owing to being formed with main body reducing diameter part 14, therefore from main part 10 to branch 20 entirety flexibly
Flexure, excellent to the spatter property of the flank of tooth, occlusal surface and narrow part.
Gradually undergauge refers to, the rugosity (diameter in the cross section orthogonal with the length direction of main part 10) of main part 10 is from master
Body line part 12 is tapered (diminishing) to the border (branch cardinal extremity) 22 of main part 10 with branch 20.
Length L0 of main body line part 12, it is contemplated that the length of toothbrush bristle 1 entirety determines.
The rugosity of the main body line part 12 i.e. maximum gauge R1 of main part 10, it is considered to material etc. determine, preferably
100～300 μm, 150～250 μm are more preferable.If less than above-mentioned lower limit, it is likely that hair hardness is too soft and makes tooth
The cleaning true feeling of face and occlusal surface etc. declines.If exceeding above-mentioned higher limit, it is likely that make the spatter property of narrow part decline,
Or make contact sense hardening.
Length L1 of main body reducing diameter part 14, can be according to the rigidity etc. required by toothbrush bristle 1, it is considered to material etc. are determined
Fixed, such as make 0.5～15mm.Length L1 of main body reducing diameter part 14, according to the solvent species of dipping process described later
Combination with dip time regulates.
The rugosity of the main part 10 in the minimum diameter of the main body reducing diameter part 14 i.e. border of main part 10 and branch 20
The 30 of R2, the most preferably R1～99%, 60～95% more preferable.If less than above-mentioned lower limit, it is likely that branch
Length L2 of 20 shortens and is difficult to play its effect, and hair hardness is too soft and make the cleaning of the flank of tooth and occlusal surface etc.
True feeling declines.If exceeding above-mentioned higher limit, it is likely that make the spatter property of narrow part decline, or make contact sense hardening.
As in figure 2 it is shown, on main part 10, the central shaft O1 around main part 10 is formed along its length
The hollow bulb 16 extended.In the present embodiment, the cross sectional shape of this hollow bulb 16 is made drift angle and is positioned at main part
Substantially isosceles triangle near the central shaft O1 of 10, hollow bulb 16 is configured to ring-type around the axis of central shaft O1.
Substantially isosceles triangle refers to that comprising portion or all of limit is arc-shaped, or each summit is by straight line or curve corner cut
After the concept of shape.
Central shaft O1 is cardinal extremity 11 and the branch cardinal extremity 22 connecting main part 10, and relative to toothbrush bristle 1
Length direction and vertical, by the line of the central cross-section of arbitrary section.
Branch 20 is made into top 21 gradually undergauge, and top 21 is by the so-called cone-shaped of tip.Such as Fig. 2 institute
Show, the cross sectional shape of branch 20, make drift angle and be positioned at the substantially isosceles three near the central shaft O1 of toothbrush bristle 1
Dihedral.The cross sectional shape of branch 20 is along with towards top 21 close to circular.
The outer peripheral face of branch 20 is connected to same with the outer peripheral face of main part 10 and the inner peripheral surface of hollow bulb 16,
Toothbrush bristle 1 entirety is made from cardinal extremity 11 to the shape of top 21 gradually undergauge.
In the present embodiment, branch 20 is the most equal shape and the most equal size.
The length of branch 20 i.e. length L2 on branch cardinal extremity 22 to top 21, can be wanted according to toothbrush bristle 1
The rigidity etc. asked, it is considered to material etc. determine, the most preferably 0.5～10mm, 2～4mm is more preferable.If less than above-mentioned
Lower limit, it is likely that make the spatter property of narrow part decline, or make contact sense hardening, if exceeding above-mentioned higher limit, then
Likely hair hardness is too soft and make the cleaning true feeling of the flank of tooth and occlusal surface etc. decline.The length L2 root of branch 20
Regulate with the combination of dip time according to the solvent species of dipping process described later.
Top end diameter (from top 21 to the diameter of the part near branch cardinal extremity 22 to the 0.1mm) R3 of branch 20,
Such as being preferably 10～100 μm, 10～60 μm are more preferable.Top end diameter R3 is the length direction relative to branch 20
And vertical cross section in the diameter of a circle that connects.
Toothbrush bristle 1 is main part 10 and the branch 20 toothbrush bristle after integrally formed.
As long as one material being used as toothbrush bristle of the material of toothbrush bristle 1 gets final product and is not defined, such as may be used
To enumerate: polyethylene terephthalate (PET), PTT (PTT) or poly-terephthaldehyde
The polyester of acid butanediol ester (PBT) etc.；The polyamide of 612 nylon or 610 nylon etc.；Or polyethylene (PE) or
The resin of the polyolefin etc. of polypropylene (PP) etc., wherein, from the perspective of being easily worked, preferably polyester.These
Resin can use a kind of or combine two or more use, but from the cost of investment of the equipment of manufacture, maintenance property
Or from the point of view of the stability viewpoint of presentation quality, the monofilament being preferably made up of single material.
As another aspect of the present invention, relating to the manufacture method of a kind of toothbrush bristle, it comprises following operation: utilize
Extrusion molding and obtain the fiber with hollow bulb；Described fiber banding is made fibre bundle；And by described fiber
Any end face (at least one end face) of bundle is towards below vertical, by described fibre bundle random length from this any end face
Partial immersion is in a solvent.
I.e., it is possible to enumerate the manufacture method of following toothbrush bristle 1, have: resinous fiber banding is done fibroblast
Dimension bundle (bundle formation process), by the arbitrary end of this fibre bundle facing to below vertical and by described fibre bundle from this any end face
Play the partial immersion operation (dipping process) in a solvent of random length.
In bundle formation process, the resinous fiber banding of any radical is obtained fibre bundle.In bundle formation process
Fibre bundle in number of fiber it is contemplated that manufacture efficiency etc. and determine.
Use Fig. 3～4 that the resinous fiber 5 being used for manufacturing toothbrush bristle 1 is illustrated.Fiber shown in Fig. 3
5, make the cylindric of the most same diameter from 51 to the opposing party end, square end portion 52, be internally formed along length side
To three hollow bulbs 16 extended.
Fiber 5 is such as identical with the manufacture method of one hollow bristle, machine manufacture molding by extrusion.As by squeezing
The manufacture method that pressing formation machine is carried out, can enumerate such as: with the manufacturer of the filamentous described in above-mentioned patent documentation 4
The method that method is identical.
The length of fiber 5, it is contemplated that determine, such as the length of toothbrush bristle 1 of target and fur planting method etc.
Planting, as by common wire type, the occasion that cant formula plants the toothbrush bristle 1 of hair, making 25～about 35mm.
In dipping process, any end face of fibre bundle is immersed in solvent, thus forms branch 20 and main body contracting
Footpath portion 14.
Solvent used in dipping process, the kind of corresponding fiber 5 can determine, can enumerate such as: sodium hydroxide
The alkaline solution of solution or aqua calcis etc., the acid solution of sulfuric acid solution etc., or organic solvent, wherein,
Being alkaline solution well, sodium hydroxide solution is more preferable.
Sodium hydroxide solution is being used as the occasion of solvent, and the concentration of sodium hydroxide makes such as 40～50 mass %.
It addition, the temperature of sodium hydroxide solution, make such as 120～140 DEG C.
The length of dipping fibre bundle in a solvent, it is contemplated that the length etc. of required branch 20 suitably determines.
Such as, as with general expression plant cant formula plant hair toothbrush bristle 1 fiber 5 a length of 25～35mm
Occasion, the length of dipping fibre bundle in a solvent is preferably 39～25mm.
When being impregnated in a solvent by fibre bundle, solvent can dissolve the periphery of fiber 5, and fiber climbed up by solvent simultaneously
5 dissolving fibers 5 on one side from each other and in hollow bulb 16, thus form branch 20 and main body reducing diameter part 14.
After impregnating in a solvent at any time, fibre bundle is taken out from solvent, according to required and after being neutralized,
It is carried out with water.
Branch 20 both can be made only in toothbrush bristle 1 single-ended on, it is possible to be formed on two ends.
So obtained toothbrush bristle 1, plants a mao method by such as common wire type and plants hair and planting on hair side 40, or in utilizing
Die pressing is planted hair and is being planted on hair side 40, thus becomes toothbrush.
The toothbrush bristle of employing present embodiment, owing to there is top by the branch of tipped, therefore, can be well
The narrow part in cleaning between cog and neck portion etc., owing to the main part being connected with branch is thicker than branch, therefore, can send out
Wave stronger hair hardness such that it is able to the cleaning flank of tooth and occlusal surface well.Additionally, due to be formed on main part
Main body reducing diameter part, therefore, flexibly bends to branch from main part, and hair hardness will not be really up to the mark, can connect with excellent
Narrow part, the flank of tooth and occlusal surface are cleaned by sense of touch well.
Use present embodiment, owing to main part is substantial cylindrical, accordingly, it is capable to impact when preventing because planting mao etc. and
Toothbrush bristle is made to split.Especially, carry out planting the occasion of hair planting mao device by common wire type, when being supplied by toothbrush bristle
When feather planting machine, or toothbrush bristle is hammered into when planting hair side, can prevent toothbrush bristle from producing breakage.
Use present embodiment, owing to the cross sectional shape of branch is general triangular, therefore, available Formation cross-section shape
The crest line on each summit of shape scrapes off tooth dirt, thus cleans narrow part more well.
Use present embodiment, can have cone-shaped with being manufactured by fibre bundle dipping this short-cut method in a solvent
The toothbrush bristle of branch.
(the second embodiment)
Referring to Figure of description, the toothbrush bristle of second embodiment of the invention is illustrated.This embodiment party
Places different from the first embodiment in formula, is quantity and its cross sectional shape of branch.
As it is shown in figure 5, toothbrush bristle 100 has: main part 110, four points be extended on main part 110
Branch 120.
Main part 110 is planted hair when planting on hair side 40 at toothbrush bristle 100, is to top from cardinal extremity 111
The 121 generally a cylindrical shapes extended.In the present embodiment, main part 110, substantially same being formed near cardinal extremity 111
The main body line part 112 of one diameter, and it is formed with main body line part 112 continuously, towards branch cardinal extremity 122 gradually
The main body reducing diameter part 114 of undergauge.
As shown in figs. 6-7, main part 110 is formed with the hollow bulb 116 extended along its length.Hollow bulb 116
Main part 110 is cuted out into general cylindrical shape.In main part 110, around central shaft O2 with the inner circumferential of main part 110
Face is formed with generally cylindrical four the branch's base portions 130 extended along main part 110 length direction with connecting.
Central shaft O2 is cardinal extremity 111 and the branch cardinal extremity 122 connecting main part 110, and relative to toothbrush bristle 100
Length direction vertical, by the line at the center of arbitrary section.
Branch 120 is made into top 121 gradually undergauge, and top 121 is turned to so-called cone-shaped by tip.As
Shown in Fig. 6, the cross sectional shape of branch 120 is substantially positive round.
Substantially positive round refers to, does not has the polygon being only made up of, ellipse or the positive round in corner (corner) R in periphery.Institute
State R and refer to curved surface.
The outer peripheral face of branch 120 is connected to same with the outer peripheral face of the outer peripheral face of main part 110 and branch's base portion 130
Individual face, toothbrush bristle 100 entirety is made from cardinal extremity 111 to the shape of top 121 gradually undergauge.
In the present embodiment, branch 120 is mutual same shape and roughly equal rugosity.
The length of main body line part 112 is identical with the length of main body line part 12, the rugosity of main body line part 112 and master
The rugosity of body line part 12 is identical.
The length of main body reducing diameter part 114 is identical with the length of main body reducing diameter part 14, the minimum diameter of main body reducing diameter part 114
Identical with the minimum diameter of main body reducing diameter part 14.
The length of branch 120 is identical with the length of branch 20, the top end diameter of branch 120 and branch 20
Top end diameter identical.
The material of toothbrush bristle 100 is identical with the material of toothbrush bristle 1.
Using present embodiment, owing to the cross section of branch is circular, therefore, the hair hardness of branch is soft, contact
Feel more excellent.
(other embodiment)
The present invention is not limited to above-mentioned embodiment.
In the first embodiment, the cross sectional shape of branch is general triangular, but the invention is not restricted to this, branch
The cross sectional shape in portion may also be the circle of circular or ellipse etc.；Or substantially tetragon or substantially pentagon
Deng triangle beyond generally polygonal.
In this second embodiment, the cross sectional shape of branch is substantially circular, but the invention is not restricted to this, both may be used
It is oval, it is possible to be the generally polygonal of general triangular, substantially tetragon or substantially pentagon etc..
But, from the viewpoint of improving spatter property, the cross sectional shape of branch is preferably polygon.Described polygon,
Refer to comprise corner by the generally polygonal shape after straight line or curve corner cut.
That is, the cross sectional shape of the branch of the toothbrush bristle of the present invention, preferably from by circular, ellipse, triangle
At least one shape selected in the cluster that shape, tetragon and pentagon are constituted.So-called described triangle, four limits
Shape and pentagon, refer respectively to comprise corner by the general triangular after straight line or curve corner cut, substantially tetragon or big
Cause pentagonal shape.
Cross sectional shape at branch is polygonal occasion, and its top end diameter R3 is from leaving top 21 near dividing
The area of the arbitrary section that the length direction with toothbrush bristle 1 of the part of branch cardinal extremity 22 to 0.1mm is orthogonal.
In the first embodiment, although be formed with three branches, but the invention is not restricted to this, the quantity of branch
Both two, it is possible to be more than four.
In this second embodiment, although be formed with four branches, but the invention is not restricted to this, the quantity of branch
Both two～three, it is possible to be more than five.
But, there is the hair hardness of appropriateness from branch, from the viewpoint of improving spatter property and obtaining excellent contact sense,
The quantity of branch is preferably three～ten, and three～five more preferably.
In the first embodiment, although be independently formed with three hollow bulbs, but the invention is not restricted to this, such as,
Can also be that plural hollow bulb is connected in the region comprising central shaft, cross sectional shape be to extend near central shaft
Become radial, i.e. cross or star etc..
The quantity of hollow bulb is preferably three～ten, and three～five more preferably.
Use Fig. 8 A and Fig. 8 B that the toothbrush bristle being formed with this hollow bulb is illustrated.Fig. 8 A is and Fig. 2
The sectional view of same position, Fig. 8 B is the sectional view of main part.As shown in Fig. 8 A or Fig. 8 B, toothbrush bristle 200
Have: generally cylindrical main part 210 and four branches 220.Main part 210 is formed with main body straight
Line portion 212 and main body reducing diameter part 214.
The cross sectional shape of branch 220 is general triangular, and makes along with towards top close to circular.In main body
Being formed with cross sectional shape in portion 210 is the most criss-cross hollow bulb 216.
As toothbrush bristle 200, if hollow bulb 216 is connected, then at dipping process in the region comprising central shaft O3
Middle solvent is easily accessible to depths, thus can lengthen the length of branch 220, and this point is preferable.
Central shaft O3 is the cardinal extremity connecting main part 210 and branch cardinal extremity, and relative to the length of toothbrush bristle 200
Direction and vertical, by the line at the center of arbitrary section.
In the first and the second embodiments, although branch is mutual same shape and roughly equal size,
But the invention is not restricted to this, the branch of a part can differ with shape or the size of other branch,
The mutual shape or the size that may also be all branches differ.For example, it is possible to make the cross section shape of the branch of a part
Shape is generally polygonal, and the cross sectional shape of branch of a part is substantially circular, it is possible to be the cross section shape of branch
Shape is mutually mutually different generally polygonal.It addition, such as its cross sectional shape of branch may also be the most identical, and
Rugosity is mutually mutually different.
Employing Fig. 9 A and Fig. 9 B is different from the toothbrush bristle of the rugosity of other branch to the rugosity of a part of branch
Illustrate.Fig. 9 A is and the sectional view of Fig. 2 same position, and Fig. 9 B is the sectional view of main part.Such as Fig. 9 A and
Shown in Fig. 9 B, toothbrush bristle 300 has: 310, three the first branches 320 of generally cylindrical main part, with
And three the second branches 322, main part 310 is formed main body line part 312 and main body reducing diameter part 314.
The cross sectional shape of the first branch 320 is general triangular, and makes along with towards top close to circular.The
The cross sectional shape of two branches 322 is general triangular, and makes along with towards top close to circular.
The cross sectional shape of the first branch 320 of toothbrush bristle 300 and the cross sectional shape of the second branch 322 are made greatly
Cause identical, and the sectional area of the first branch 320 is more than the sectional area of the second branch 322.
On main part 310, it is formed with the circular hollow that cross sectional shape is circular in the region comprising central shaft O4
Portion 318, and it is formed with the cross section shape extended radially from circular hollow portion 318 towards the outer peripheral face of main part 310
The rectangular hollow portion 319 of shape.On main part 310, by arbitrary rectangular hollow portion 319, at main part 310
Circumference forms three first branch's bases close to other the rectangular hollow portion 319 in this arbitrary rectangular hollow portion 319
Portion 330 and three second branch's base portions 332.First branch's base portion 330 and the cross section shape of second branch's base portion 332
Shape is general triangular, and sectional area is mutually different.It addition, the first branch's base portion 330 and second branch's base portion 332
It is alternately positioned in the circumference of main part 310.
The outer peripheral face that first branch 320 is constituted with first branch's base portion 330 and main part 310 is in the most same
Face, the outer peripheral face that the second branch 322 is constituted with second branch's base portion 332 and main part 310 is in the most same
Face.
This toothbrush bristle 300, harder the first branch 320 of hair hardness improves its spatter property, and hair hardness is relatively soft
The second branch 322 improve excellence contact sense.
Central shaft O4 is the cardinal extremity connecting main part 310 and branch cardinal extremity, and relative to the length of toothbrush bristle 300
Direction vertical, by the line at the center of arbitrary section.
Embodiment
Below, it is shown that embodiment describes the present invention in detail, but the present invention be defined in described below.
(embodiment 1)
Utilize extrusion molding that PBT is extruded and obtain the fiber with hollow bulb, by this fiber impregnation at solvent (50
The sodium hydroxide of quality %) in, it is thus achieved that the toothbrush bristle identical with the toothbrush bristle 1 of the first embodiment.Obtained by
The specification of toothbrush bristle is as shown in table 1.This toothbrush bristle, owing to (adding this in table by the method impregnated in a solvent
Work method is denoted as " dissolving ") obtain, therefore, manufacture efficiency high.
Then, for making the bristle count of each pieces be 20, and by folding into two for 10 toothbrush bristles, with 4 row × 7 layer
Mode carries out planting hair and obtaining toothbrush.To obtained toothbrush, to planting a mao fitness, narrow part spatter property and face cleaning
Property is evaluated, and represents its result in Table 1.
(embodiment 2)
In addition to the toothbrush bristle 100 of toothbrush bristle and the second embodiment is identical, remaining same as in Example 1 and
Obtain toothbrush.For obtained toothbrush, it is evaluated planting a mao fitness, narrow part spatter property and face spatter property,
And represent its result in Table 1.
(comparative example 1)
Extrusion molding is utilized PBT to be extruded and obtains the fibre of the cloverleaf pattern (multi-leaf-shaped) that cross sectional shape is three leaves
Dimension, by this fiber impregnation in solvent (sodium hydroxide of 50 mass %) except obtaining the toothbrush identical with patent documentation 1
Beyond bristle, remaining is same as in Example 1 and obtains toothbrush.For obtained toothbrush, to planting a mao fitness, narrow
Little portion spatter property and face spatter property are evaluated, and represent its result in Table 1.
(comparative example 2)
According to patent documentation 2, except to top layer be nylon, sandwich layer be that the fiber of PBT is ground obtaining toothbrush brush
Beyond Mao, remaining obtains toothbrush same as in Example 1ly.This toothbrush bristle, is made up of two or more layer manufacturing
Fiber on this point and form branch (this processing method is denoted as " grinding by table on this point by grinding
Mill "), manufacture method is more numerous and diverse.For obtained toothbrush, to planting a mao fitness, narrow part spatter property and face cleaning
Property is evaluated, and represents its result in Table 1.
(comparative example 3)
According to patent documentation 3, in addition to using protuberance to be the fiber that nylon, bed portion are PBT, remaining and embodiment
1 obtains toothbrush in the same manner.This toothbrush bristle, is manufacturing the fiber this point of island structure, and manufacture method is more numerous and diverse.
For obtained toothbrush, it is evaluated planting a mao fitness, narrow part spatter property and face spatter property, and in Table 1
Represent its result.
(comparative example 4)
Except the cross sectional shape of fiber being made the circular axis around a diameter of 120 μm and ring-type configuration is a diameter of
Beyond four circular (multi-leaf-shaped) of 60 μm, remaining obtains toothbrush with comparative example 1 identically.For obtained tooth
Brush, is evaluated planting a mao fitness, narrow part spatter property and face spatter property, and represents its result in Table 1.
(comparative example 5)
According to patent documentation 4, utilize extrusion molding that PBT is extruded, and form six kicks, it is thus achieved that cross section
Profile is the most orbicular fiber.With swivel knife, one end of this fiber is processed, it is thus achieved that be formed with branch
This processing method (in table, is denoted as " cutting ") by toothbrush.With obtained toothbrush bristle, same as in Example 1ly
Obtain toothbrush, for obtained toothbrush, be evaluated planting a mao fitness, narrow part spatter property and face spatter property,
And represent its result in Table 1.
(evaluation methodology)
<planting a mao fitness>
Toothbrush to each example, with the naked eye observes and is planted the toothbrush bristle after hair, it will be considered that unbroken be evaluated as " B ",
Will be considered to breakage is evaluated as " D ".
<narrow part spatter property>
Carry out boil on the nape opposite the mouth intracavity with the toothbrush of each example to be cleaned, evaluate narrow part spatter property according to following metewand.
" metewand "
A: substantially feel that the tooth dirt in neck portion is removed.
B: feel that the tooth dirt in neck portion is removed.
C: less feel that the tooth dirt in neck portion is removed.
D: the tooth dirt in complete imperceptible neck portion is removed.
<face spatter property>
It is cleaned with the toothbrush boil on the nape opposite the mouth intracavity of each example, evaluates narrow part spatter property according to following metewand.
" metewand "
A: substantially feel that the flank of tooth and occlusal tooth dirt are removed.
B: feel that the flank of tooth and occlusal tooth dirt are removed.
C: less feel that the flank of tooth and occlusal tooth dirt are removed.
D: the complete imperceptible flank of tooth and occlusal tooth dirt are removed.
As shown in table 1, applying embodiments of the invention 1～2, it is good that it plants mao fitness, and narrow part spatter property
And face spatter property is " B " or " A ".Additionally, the toothbrush bristle of embodiment 1～2, owing to it manufactures efficiency height, and
The fiber being made up of single material can be processed and obtain, therefore can manufacture with relatively low cost.
On the other hand, multi-leaf-shaped fiber is processed and the comparative example 1 and 4 that obtains, is not big due to main part
Cause positive round, therefore plant mao fitness for " D ".
Comparative example 2 forms branch owing to using the fiber of multi-ply construction and be ground it, therefore it is low to manufacture efficiency.
It addition, narrow part spatter property is " C ".
Comparative example 3 is straight line due to the shape of its branch, therefore narrow part spatter property is " C ".
Comparative example 5 is straight line due to the shape of its branch, therefore narrow part spatter property is " C ".
In terms of result above, apply the toothbrush bristle of the present invention, it is judged that for: to the flank of tooth, occlusal surface and narrow part
Spatter property is excellent, it is possible to be easily manufactured, and the manufacture fitness of toothbrush is excellent.
Practicality in industry
Use the present invention, it is possible to provide the spatter property of a kind of flank of tooth, occlusal surface and narrow part is excellent, can be easily manufactured
And the toothbrush bristle manufacturing fitness excellence of toothbrush.
Claims (4)
1. a toothbrush bristle, has: the columned main part that extends towards top from cardinal extremity and extended
Plural branch on described main part, described branch is made the shape of the gradually undergauge towards top, is somebody's turn to do
Toothbrush bristle is characterised by,
Described main part, is formed with the reducing diameter part towards described branch gradually undergauge at the cardinal extremity near described branch,
On described main part, the central shaft around described main part is leaving to form mutually the length along described main part
Degree direction is that extend with the described corresponding hollow bulb of branch quantity, and in the region comprising described central shaft is formed without
Sky portion,
The cross sectional shape with described orthogonality of center shaft of described hollow bulb is formed as from described central axial described main part
The shape that outer peripheral face extends,
Described branch is projecting from described hollow bulb region from each other.
2. toothbrush bristle as claimed in claim 1, it is characterised in that the cross sectional shape of described branch is polygon.
3. a toothbrush, it is characterised in that planted hair just like the toothbrush bristle described in claim 1 or 2.
4. the manufacture method of a toothbrush bristle as claimed in claim 1 or 2, it is characterised in that comprise following work
Sequence:
Resinous fiber banding is made fibre bundle, on described fiber, mutual around the central shaft of described fiber
It is leaving to form the hollow bulb of the length direction extension along described fiber, and is formed without in the region comprising described central shaft
Hollow bulb, the cross sectional shape with described orthogonality of center shaft of described hollow bulb is formed as from described central axial described fiber
Outer peripheral face extend shape；And
By the arbitrary end of described fibre bundle facing to below vertical, by described fibre bundle from described any end face arbitrarily
The partial immersion of length in a solvent, dissolved by solvent by the periphery of described fiber, and the most described solvent is climbed up described
Fiber is from each other and hollow bulb is interior while dissolving described fiber, thus forms described branch and described main body reducing diameter part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-178830 | 2011-08-18 | ||
| JP2011178830A JP6435539B2 (en) | 2011-08-18 | 2011-08-18 | Toothbrush bristles, manufacturing method thereof, and toothbrush |
| PCT/JP2012/070690 WO2013024851A1 (en) | 2011-08-18 | 2012-08-14 | Bristle for toothbrush, method for manufacturing same, and toothbrush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103732104A CN103732104A (en) | 2014-04-16 |
| CN103732104B true CN103732104B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280040117.1A Active CN103732104B (en) | 2011-08-18 | 2012-08-14 | Toothbrush bristle, its manufacture method and toothbrush |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6435539B2 (en) |
| KR (1) | KR102013966B1 (en) |
| CN (1) | CN103732104B (en) |
| WO (1) | WO2013024851A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015037496A (en) * | 2013-08-19 | 2015-02-26 | ライオン株式会社 | Bristle for toothbrush and toothbrush |
| JP6579691B2 (en) * | 2015-06-16 | 2019-09-25 | ライオン株式会社 | Toothbrush bristle and toothbrush |
| KR101721766B1 (en) * | 2015-08-13 | 2017-03-30 | 김평옥 | a toothbrush with the funtion of both teeth cleansing and oral cavity massage |
| EP3351142B1 (en) | 2017-01-24 | 2019-10-16 | The Procter and Gamble Company | Tuft picker for a brush making machine |
| EP3351143B1 (en) * | 2017-01-24 | 2019-11-06 | The Procter and Gamble Company | Tuft picker for a brush making machine |
| KR101998281B1 (en) * | 2018-12-27 | 2019-07-10 | 비비씨 주식회사 | Branch type bristles and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6086373A (en) * | 1996-07-25 | 2000-07-11 | Schiff; Thomas | Method of cleaning teeth with a toothbrush with improved cleaning and abrasion efficiency |
| JP2002159345A (en) * | 2000-11-29 | 2002-06-04 | Yasuda Kasei Kk | Bristle for brush |
| CN101321480A (en) * | 2005-12-02 | 2008-12-10 | 日星瑞士股份公司 | Toothbrush |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0998837A (en) | 1995-10-09 | 1997-04-15 | Shiseido Co Ltd | Fiber for brush bristle |
| JP4318323B2 (en) | 1996-06-05 | 2009-08-19 | サンスター株式会社 | toothbrush |
| JP3547672B2 (en) * | 1999-12-16 | 2004-07-28 | ライオン株式会社 | toothbrush |
| JP4013553B2 (en) * | 2002-01-07 | 2007-11-28 | サンスター株式会社 | toothbrush |
| JP4547891B2 (en) * | 2003-10-29 | 2010-09-22 | サンスター株式会社 | Feathered filament toothbrush |
| JP4246745B2 (en) | 2006-03-06 | 2009-04-02 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Monofilament for brush and method for producing monofilament for brush |
| JP5338233B2 (en) * | 2008-09-30 | 2013-11-13 | サンスター株式会社 | Toothbrush filament and toothbrush in which the filament is implanted |
| JP2010233794A (en) * | 2009-03-31 | 2010-10-21 | Toray Monofilament Co Ltd | Bristle material for makeup brush and makeup brush |
-
2011
- 2011-08-18 JP JP2011178830A patent/JP6435539B2/en active Active
-
2012
- 2012-08-14 WO PCT/JP2012/070690 patent/WO2013024851A1/en active Application Filing
- 2012-08-14 CN CN201280040117.1A patent/CN103732104B/en active Active
- 2012-08-14 KR KR1020147001589A patent/KR102013966B1/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6086373A (en) * | 1996-07-25 | 2000-07-11 | Schiff; Thomas | Method of cleaning teeth with a toothbrush with improved cleaning and abrasion efficiency |
| JP2002159345A (en) * | 2000-11-29 | 2002-06-04 | Yasuda Kasei Kk | Bristle for brush |
| CN101321480A (en) * | 2005-12-02 | 2008-12-10 | 日星瑞士股份公司 | Toothbrush |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140063571A (en) | 2014-05-27 |
| JP6435539B2 (en) | 2018-12-12 |
| WO2013024851A1 (en) | 2013-02-21 |
| CN103732104A (en) | 2014-04-16 |
| JP2013039268A (en) | 2013-02-28 |
| KR102013966B1 (en) | 2019-08-23 |
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