CN103732104A - Bristle for toothbrush, method for manufacturing same, and toothbrush - Google Patents
Bristle for toothbrush, method for manufacturing same, and toothbrush Download PDFInfo
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- CN103732104A CN103732104A CN201280040117.1A CN201280040117A CN103732104A CN 103732104 A CN103732104 A CN 103732104A CN 201280040117 A CN201280040117 A CN 201280040117A CN 103732104 A CN103732104 A CN 103732104A
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- toothbrush
- branching portion
- toothbrush bristle
- bristle
- main part
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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
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- 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
The present invention relates to a bristle for a toothbrush, comprising a cylindrical trunk part (10) extending from the base end (11) toward a distal end (21), and two or more branching parts (20) provided so as to extend from the trunk part (10), the branching parts (20) shaped so as to gradually decrease in diameter further toward the distal end (21), wherein the trunk part (10) of the bristle (1) for a toothbrush has a reduced diameter part (14) that is formed near a branching part base end (22) and gradually decreases in diameter further toward the branching part (20). The branching part (20) is preferably polygonal in cross-section. The present invention is capable of providing a bristle for a toothbrush that has excellent cleaning characteristics on the tooth flank, the masticating surface, and narrow parts; that can be readily manufactured; and that is exceptionally well-suited for manufacturing a toothbrush.
Description
Technical field
The present invention relates to a kind of toothbrush bristle, its manufacture method and toothbrush.
The application in the Patent 2011-178830 of Japanese publication application requirement priority, quotes its content at this based on August 18th, 2011.
Background technology
General toothbrush, has handle body and pieces, and described handle body has: handle portion and the head that is located at its top ends, described pieces is pricked plural bundle of toothbrush bristles and planted hair and forms on head.
As toothbrush bristle, known have top ends towards top undergauge and by the taper hair of tip and the linear hair from cardinal extremity to the roughly equal diameter in top etc. gradually.Wherein, taper hair is owing to entering the narrow part of neck portion and between cog portion etc., therefore be effective for prevention of periodontal disease.In addition, taper hair is because top ends is soft, therefore can give tactility excellent in oral cavity.
Although taper hair can clean narrow part well, tactility excellence, hair hardness softness, therefore sometimes feel the clean true feeling deficiency to the flank of tooth and occlusal surface etc.
For this problem, proposed a kind of by the so-called top branched hair of top ends branch.
For example, so a kind of bristle has been proposed: near the cross section of cardinal extremity, make the cloverleaf pattern of three leaves, tip side is branched off into three, and each branched hair does into a cone shape (for example patent documentation 1).
In addition, so a kind of bristle fiber has been proposed: be characterized in, by the top layer of mutually not bonding resin, formed with the composite fibre that sandwich layer forms, high-quality green tea is ground and is divided into two (for example patent documentations 2) above.
In addition, so a kind of islands-in-sea bicomponent fibre has for example been proposed: in the bed portion of polyester resin, 2～5 protuberances of the polyamide system of being dispersed with, have by thering is the protuberance of certain length and the composite part that bed portion forms from planting wool base, thus, in top side, be only formed with 2～5 core hairs (for example patent documentation 3) that protuberance exposes.
Or, proposed Apical division and become plural monofilament (for example patent documentation 4) for brush.
Patent documentation 1: Japanese Patent Laid-Open 2001-169827 communique
Patent documentation 2: Japanese patent laid-open 9-98837 communique
Patent documentation 3: Japanese patent laid-open 9-322821 communique
Patent documentation 4: Japanese Patent Laid-Open 2006-207111 communique
Invent problem to be solved
But the invention of patent documentation 1 has such problem: when toothbrush bristle being planted to hair while planting on hair side, split and damaged by mechanical shock.Especially, planting mao device by ordinary lines formula toothbrush bristle is planted the occasion of hair, when toothbrush bristle is supplied on feather planting machine, or toothbrush bristle is hammered into while planting hair side, have the splintery problem of toothbrush bristle.The invention of patent documentation 2～3 has the numerous and diverse and expensive problem of manufacturing process.The invention of patent documentation 4 has the problem that is difficult to control branching portion length and rugosity.
In addition, further require toothbrush bristle, improve the spatter property to the flank of tooth, occlusal surface and narrow part.
Summary of the invention
Therefore, the object of the invention is to, a kind of toothbrush bristle of manufacture adaptability excellence of spatter property excellence, easily manufacture and the toothbrush to the flank of tooth, occlusal surface and narrow part is provided.
For solving the means of problem
Toothbrush bristle of the present invention, have: the columned main part extending towards top from cardinal extremity and extension are arranged on the plural branching portion described main part, described branching portion is made towards top the shape of undergauge gradually, the feature of this toothbrush bristle is, described main part, is formed with towards the described branching portion reducing diameter part of undergauge gradually at the cardinal extremity near described branching portion.
Toothbrush of the present invention, is characterized in, being planted hair has described toothbrush bristle of the present invention.
The manufacture method of toothbrush bristle of the present invention, described in this, the feature of the manufacture method of toothbrush bristle is, has such operation: resinous fibre bundle bundle is made to fibre bundle; The arbitrary end of this fibre bundle, facing to vertical below, is immersed in the part of random length from described any end face of described fibre bundle solvent, and described fiber is formed with the hollow bulb extending along its length.
That is, technical solution of the present invention is as follows:
(1) a kind of toothbrush bristle, there is the columned main part extending towards top from cardinal extremity and extend the plural branching portion being arranged on described main part, described branching portion is made towards top the shape of undergauge gradually, in this toothbrush bristle, described main part, is formed with towards the described branching portion reducing diameter part of undergauge gradually at the cardinal extremity near described branching portion;
(2) toothbrush bristle as described in (1), the cross sectional shape of described branching portion is polygon;
(3) toothbrush, is planted hair just like the toothbrush bristle (1) or (2) Suo Shu; And
(4) a kind of manufacture method of the toothbrush bristle as described in (1) or (2), resinous fibre bundle bundle is made to fibre bundle, by the arbitrary end of described fibre bundle facing to vertical below, the part of described fibre bundle random length from described any end face is immersed in solvent, and described fiber is formed with the hollow bulb extending along its length.
The effect of invention
Adopt toothbrush bristle of the present invention, to the spatter property excellence of the flank of tooth, occlusal surface and narrow part, the easily manufacture adaptability excellence of manufacture and toothbrush.
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 cutaway view of the toothbrush bristle of Fig. 1.
Fig. 3 is the front view as the fiber of the material of the toothbrush bristle of Fig. 1.
Fig. 4 is the IV-IV cutaway 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 cutaway view of Fig. 5.
Fig. 7 is the VII-VII cutaway view of Fig. 5.
Fig. 8 A is the cutaway view of the toothbrush bristle of an embodiment of the present invention.
Fig. 8 B is the cutaway view of the toothbrush bristle of an embodiment of the present invention.
Fig. 9 A is the cutaway view of the toothbrush bristle of an embodiment of the present invention.
Fig. 9 B is the cutaway view of the toothbrush bristle of an embodiment of the present invention.
Symbol description
1,100,200,300 toothbrush bristles
5 fibers
10,110,210,310 main parts
11,111 cardinal extremities
12,112,212,312 main body line parts
14,114,214,314 main body reducing diameter parts
16,116,216,316 hollow bulbs
20,120,220,320,322 branching portions
21,121 tops
22,122 branching portion cardinal extremities
The specific embodiment
(the first embodiment)
The toothbrush bristle of the first embodiment of the present invention is described below with reference to Figure of description.Fig. 1 is that the toothbrush bristle that represents present embodiment is planted hair at the front view of planting state on hair side.
As shown in Figure 1, toothbrush bristle 1 has: main part 10 and extension are arranged on three branching portions 20 on main part 10.
Cylindricly refer to that the cross sectional shape orthogonal with bristle lengths direction do not have the columnar shape of the circular section in bight (corner) in the whole region of bristle, comprise roughly columned shape.The shape of main part 10 is roughly cylindric, preferably cylindric.
The cardinal extremity 11 of main part 10 refers to, be equivalent to that head toothbrushes is planted the part of hair side position or be bristle pars intermedia in the occasion that ordinary lines formula is planted two end toper hairs of mao use, top 21 refers to, leaves the top ends of component and leaves top 0.5mm (preferably 0.1mm) with interior part.
In the present embodiment, main part 10, near cardinal extremity 11, be formed with and from cardinal extremity 11 to top 21, forming the roughly main body line part 12 of same diameter, and being formed with main body line part 12 continuously, main part 10 is border (branching portion cardinal extremity) the 22 main body reducing diameter part 14 of undergauge gradually with branching portion 20 to main part 10.That is, the main part 10 of toothbrush bristle 1 of the present invention has main body line part 12 and main body reducing diameter part.
Undergauge refers to gradually, the rugosity of main part 10 (with the diameter in the orthogonal cross section of the length direction of main part 10) from main body line part 12 to main part 10 with the border (branching portion cardinal extremity) 22 of branching portion 20 be tapered (diminishing).
The length L 0 of main body line part 12, can consider that the length of toothbrush bristle 1 entirety decides.
The rugosity of main body line part 12 is the maximum gauge R1 of main part 10, and consideration material etc. decides, preferably 100～300 μ m, and 150～250 μ m are better.If be less than above-mentioned lower limit, likely hair hardness is undue soft and the clean true feeling of the flank of tooth and occlusal surface etc. is declined.If exceed above-mentioned higher limit, likely make the spatter property of narrow part decline, or make tactility hardening.
The length L 1 of main body reducing diameter part 14, can be according to toothbrush bristle 1 desired rigidity etc., considers that material etc. decides, for example, make 0.5～15mm.The length L 1 of main body reducing diameter part 14, regulates according to the combination of the solvent species of dipping process described later and dip time.
The minimum diameter of main body reducing diameter part 14 be main part 10 with the border of branching portion 20 in the rugosity R2 of main part 10, for example preferably 30～99% of R1,60～95% is better.If be less than above-mentioned lower limit, likely the length L 2 of branching portion 20 shortens and is difficult to bring into play its effect, and hair hardness is undue soft and the clean true feeling of the flank of tooth and occlusal surface etc. is declined.If exceed above-mentioned higher limit, likely make the spatter property of narrow part decline, or make tactility hardening.
As shown in Figure 2, on main part 10, around the central shaft O1 of main part 10, be formed with the hollow bulb 16 extending along its length.In the present embodiment, the cross sectional shape of this hollow bulb 16 is made drift angle and is positioned near the roughly isosceles triangle central shaft O1 of main part 10, and hollow bulb 16 is configured to ring-type around the axis of central shaft O1.Roughly isosceles triangle refers to and comprises a part or all limits are circular-arc, or the concept of the shape of each summit after by straight line or curve corner cut.
Central shaft O1 is the cardinal extremity 11 and branching portion cardinal extremity 22 that connects main part 10, and with respect to the length direction of toothbrush bristle 1 and the line of central cross-section vertical, by arbitrary section.
Branching portion 20 is made into top 21 undergauge gradually, and top 21 is by the so-called cone-shaped of tip.As shown in Figure 2, the cross sectional shape of branching portion 20, makes drift angle and is positioned near the roughly isosceles triangle central shaft O1 of toothbrush bristle 1.The cross sectional shape of branching portion 20 is circular along with approaching towards top 21.
The inner peripheral surface of the outer peripheral face of the outer peripheral face of branching portion 20 and main part 10 and hollow bulb 16 is connected to same, toothbrush bristle 1 entirety make from cardinal extremity 11 to top 21 shape of undergauge gradually.
In the present embodiment, branching portion 20 is mutually roughly equal shape and roughly equal size.
The length of branching portion 20 is the length L 2 of branching portion cardinal extremity 22 to top 21, can be according to toothbrush bristle 1 desired rigidity etc., consider that material etc. decides, and for example 0.5～10mm preferably, 2～4mm is better.If be less than above-mentioned lower limit, likely make the spatter property of narrow part decline, or make tactility hardening, if exceed above-mentioned higher limit, likely hair hardness is undue soft and the clean true feeling of the flank of tooth and occlusal surface etc. is declined.The length L 2 of branching portion 20 regulates according to the combination of the solvent species of dipping process described later and dip time.
The top end diameter of branching portion 20 (from top 21 to the diameter of the part near branching portion cardinal extremity 22 to 0.1mm) R3, for example 10～100 μ m preferably, 10～60 μ m are better.Top end diameter R3 be with respect to the length direction of branching portion 20 and vertical cross section in the diameter of a circle that connects.
Toothbrush bristle 1 is main part 10 toothbrush bristle after integrally formed with branching portion 20.
The material of toothbrush bristle 1 gets final product and does not limit as long as being generally used as the material of toothbrush bristle, for example, can enumerate: the polyester of PETG (PET), PTT (PTT) or polybutylene terephthalate (PBT) (PBT) etc.; The polyamide of 612 nylon or 610 nylon etc.; Or the resin of the polyolefin of polyethylene (PE) or polypropylene (PP) etc. etc., wherein, from the angle of easy processing, preferably polyester.These resins can or combine two or more use by independent one, but from the stability viewpoint of the cost of investment of manufacturing equipment, maintenance property or presentation quality, the monofilament preferably being formed by single material.
As another aspect of the present invention, relate to a kind of manufacture method of toothbrush bristle, it comprises following operation: utilize extrusion molding and obtain the fiber with hollow bulb; Described fibre bundle bundle is made to fibre bundle; And by any end face of described fibre bundle (at least one end face) towards vertical below, the part of described fibre bundle random length from this any end face is immersed in solvent.
; the manufacture method that can enumerate following toothbrush bristle 1, has: resinous fibre bundle is pricked and make fibre bundle (bundle forms operation), by the arbitrary end of this fibre bundle facing to vertical below and the part of described fibre bundle random length from this any end face is immersed in to the operation (dipping process) solvent.
At bundle, form in operation, the resinous fibre bundle of any radical is pricked and acquisition fibre bundle.Bundle forms number of fiber in the fibre bundle in operation and can consider to manufacture efficiency etc. and decide.
Adopt Fig. 3～4 pair to describe for the manufacture of the resinous fiber 5 of toothbrush bristle 1.Fiber 5 shown in Fig. 3, makes the cylindric of same diameter roughly from a square end portion 51 to the opposing party end 52, inside is formed with three hollow bulbs 16 that extend along its length.
The length of fiber 5, can be considered as the length of toothbrush bristle 1 of target and fur planting method etc. and decide, for example, in the occasion as planting cant formula by ordinary lines formula and plant the toothbrush bristle 1 of hair, make 25～35mm left and right.
In dipping process, any end face of fibre bundle is immersed in solvent, thereby forms branching portion 20 and main body reducing diameter part 14.
Solvent used in dipping process, kind that can corresponding fiber 5 decides, and for example can enumerate: the alkaline solution of sodium hydroxide solution or aqua calcis etc., the acid solution of sulfuric acid solution etc., or organic solvent, wherein, preferably alkaline solution, sodium hydroxide solution is better.
In the occasion that sodium hydroxide solution is used as to solvent, the concentration of NaOH is made for example 40～50 quality %.
In addition, the temperature of sodium hydroxide solution, makes for example 120～140 ℃.
Be immersed in the length of the fibre bundle in solvent, the length that can consider required branching portion 20 etc. suitably determines.
For example, in the occasion that is 25～35mm as the length of fiber 5 of planting cant formula by general expression and plant the toothbrush bristle 1 of hair, be immersed in the preferably 39～25mm of length of the fibre bundle in solvent.
When fibre bundle is immersed in solvent, solvent can dissolve the periphery of fiber 5, simultaneously solvent climb up fiber 5 mutually between and hollow bulb 16 interior while dissolve fiber 5, thereby formation branching portion 20 and main body reducing diameter part 14.
After being immersed at any time in solvent, fibre bundle is taken out from solvent, according to after required neutralization, water cleans.
Branching portion 20 both can only be formed on the single-ended upper of toothbrush bristle 1, also can be formed on two ends.
The toothbrush bristle 1 so obtaining, by for example ordinary lines formula plant a mao method plant hair planting on hair side 40, or utilize in die pressing plant hair planting on hair side 40, thereby become toothbrush.
Adopt the toothbrush bristle of present embodiment, owing to thering is top by the branching portion of tipped, therefore, can clean well the narrow part of between cog and neck portion etc., because the main part being connected with branching portion is thicker than branching portion, therefore, stronger hair hardness can be brought into play, thereby the flank of tooth and occlusal surface can be cleaned well.In addition,, owing to being formed with main body reducing diameter part on main part, therefore, from main part to flexibly deflection of branching portion, hair hardness can be not really up to the mark, can to narrow part, the flank of tooth and occlusal surface, clean well with excellent tactility.
Adopt present embodiment, because main part is substantial cylindrical, therefore, can prevent that impact when planting mao etc. from split toothbrush bristle.Especially, planting mao device by ordinary lines formula and plant the occasion of hair, when toothbrush bristle is supplied in to feather planting machine, or toothbrush bristle is hammered into while planting hair side, can prevent that toothbrush bristle from producing damaged.
Adopt present embodiment, because the cross sectional shape of branching portion is general triangular, therefore, can scrape off tooth dirt with the crest line on the each summit of Formation cross-section shape, thereby clean narrow part more well.
Adopt present embodiment, can be with the toothbrush bristle that fibre bundle is immersed in to this short-cut method manufacture in solvent and has cone-shaped branching portion.
(the second embodiment)
Below with reference to Figure of description, the toothbrush bristle of second embodiment of the invention is described.The place different from the first embodiment is in the present embodiment quantity and its cross sectional shape of branching portion.
As shown in Figure 5, toothbrush bristle 100 has: main part 110, extension are arranged on four branching portions 120 on main part 110.
As shown in Fig. 6～7, on main part 110, be formed with the hollow bulb 116 extending along its length.Hollow bulb 116 is cuted out into general cylindrical shape by main part 110.In main part 110, around central shaft O2 with the inner peripheral surface of main part 110 be formed with joining along main part 110 length directions extend roughly columned four branch's base portions 130.
Central shaft O2 is the cardinal extremity 111 and branching portion cardinal extremity 122 that connects main part 110, and with respect to the length direction of toothbrush bristle 100 vertical, the line at center by arbitrary section.
Branching portion 120 is made into top 121 undergauge gradually, and top 121 is turned to so-called cone-shaped by tip.As shown in Figure 6, the cross sectional shape of branching portion 120 is for roughly just round.
Roughly just circle refers in periphery, there is no the polygon only consisting of R, the ellipse or just round in bight (corner).Described R refers to curved surface.
The outer peripheral face of the outer peripheral face of the outer peripheral face of branching portion 120 and main part 110 and branch's base portion 130 is connected to same, toothbrush bristle 100 entirety make from cardinal extremity 111 to top 121 shape of undergauge gradually.
In the present embodiment, branching portion 120 is mutual roughly the 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, and the rugosity of main body line part 112 is identical with the rugosity of main body line part 12.
The length of main body reducing diameter part 114 is identical with the length of main body reducing diameter part 14, and the minimum diameter of main body reducing diameter part 114 is identical with the minimum diameter of main body reducing diameter part 14.
The length of branching portion 120 is identical with the length of branching portion 20, and the top end diameter of branching portion 120 is identical with the top end diameter of branching portion 20.
The material of toothbrush bristle 100 is identical with the material of toothbrush bristle 1.
Adopt present embodiment, because the cross section of branching portion is circular, therefore, and the hair hardness softness of branching portion, tactility is more excellent.
(other embodiment)
The present invention is not limited to above-mentioned embodiment.
In the first embodiment, the cross sectional shape of branching portion is general triangular, but the invention is not restricted to this, and the cross sectional shape of branching portion is the circle of positive circle or ellipse etc. also; Or roughly quadrangle or the roughly roughly polygon beyond the triangle of pentagon etc.
In the second embodiment, the cross sectional shape of branching portion is for roughly positive circular, but the invention is not restricted to this, both oval, also general triangular, roughly quadrangle or the roughly polygon of pentagon etc. roughly.
But, from improving the viewpoint of spatter property, preferably polygon of the cross sectional shape of branching portion.Described polygon, refers to and comprises the roughly polygonal shape of bight after by straight line or curve corner cut.
That is, the cross sectional shape of the branching portion of toothbrush bristle of the present invention, preferably from by positive circle, ellipse, triangle, quadrangle and pentagon, formed troop at least one shape of selection.So-called described triangle, quadrangle and pentagon, refer to respectively and comprise the general triangular of bight after by straight line or curve corner cut, roughly quadrangle or pentagonal shape roughly.
At the cross sectional shape of branching portion, be polygonal occasion, its top end diameter R3 be from leave top 21 near the part of branching portion cardinal extremity 22 to 0.1mm, with the area of the orthogonal arbitrary section of the length direction of toothbrush bristle 1.
In the first embodiment, although be formed with three branching portions, the invention is not restricted to this, both two of the quantity of branching portion, also more than four.
In the second embodiment, although be formed with four branching portions, the invention is not restricted to this, both two～tri-of the quantity of branching portion, also more than five.
But, from branching portion, there is appropriate hair hardness, improve spatter property and obtain the viewpoint of excellent tactility, preferably three～ten of the quantity of branching portion, three～five are better.
In the first embodiment, although be independently formed with respectively three hollow bulbs, the invention is not restricted to this, for example, also can be that plural hollow bulb is connected in the region that comprises central shaft, cross sectional shape be radial from extending near central shaft, i.e. cross or star etc.
Preferably three～ten of the quantity of hollow bulb, three～five better.
Adopt Fig. 8 A and Fig. 8 B to describe the toothbrush bristle that is formed with this hollow bulb.Fig. 8 A is and the cutaway view of Fig. 2 same position that Fig. 8 B is the cutaway view of main part.As shown in Fig. 8 A or Fig. 8 B, toothbrush bristle 200 has: roughly columned main part 210 and four branching portions 220.On main part 210, be formed with main body line part 212 and main body reducing diameter part 214.
The cross sectional shape of branching portion 220 is general triangular, and makes along with approaching towards top circular.On main part 210, be formed with cross sectional shape for criss-cross hollow bulb 216 roughly.
As toothbrush bristle 200, if hollow bulb 216 is connected in the region that comprises central shaft O3, in dipping process, solvent easily enters to depths, thereby can lengthen the length of branching portion 220, and this point is better.
Central shaft O3 connects cardinal extremity and the branching portion cardinal extremity of main part 210, and with respect to the length direction of toothbrush bristle 200 and line vertical, that pass through the center of arbitrary section.
In first and second embodiment, although branching portion is mutual roughly the same shape and roughly equal size, but the invention is not restricted to this, the branching portion of a part can be not identical with shape or the size of other branching portion, and the mutual shape of all branching portions or size are not identical yet.For example, the cross sectional shape that can make a part of branching portion is polygon roughly, and the cross sectional shape of the branching portion of a part is roughly positive circular, and also the cross sectional shape of branching portion is mutually mutually different roughly polygon.In addition, for example its cross sectional shape of branching portion is also mutually identical, and rugosity is mutually mutually different.
The toothbrush bristle that adopts Fig. 9 A and Fig. 9 B to be different from the rugosity of other branching portion to the rugosity of a part of branching portion describes.Fig. 9 A is and the cutaway view of Fig. 2 same position that Fig. 9 B is the cutaway view of main part.As shown in Fig. 9 A and Fig. 9 B, toothbrush bristle 300 has: roughly columned main part 310, three the first branching portions 320 and three the second branching portions 322 are formed with main body line part 312 and main body reducing diameter part 314 on main part 310.
The cross sectional shape of the first branching portion 320 is general triangular, and makes along with approaching towards top circular.The cross sectional shape of the second branching portion 322 is general triangular, and makes along with approaching towards top circular.
The cross sectional shape of the first branching portion 320 of toothbrush bristle 300 and the cross sectional shape of the second branching portion 322 are made roughly the same, and the sectional area of the first branching portion 320 is greater than the sectional area of the second branching portion 322.
On main part 310, in the region that comprises central shaft O4, being formed with cross sectional shape is the circular hollow bulb 318 of circular, and is formed with the rectangular hollow portion 319 of the cross sectional shape extending radially towards the outer peripheral face of main part 310 from circular hollow bulb 318.On main part 310, by rectangular hollow portion 319 arbitrarily, main part 310 circumferentially close to this arbitrarily other rectangular hollow portion 319 of rectangular hollow portion 319 form three first branch's base portions 330 and three second branch's base portions 332.The cross sectional shape of first branch's base portion 330 and second branch's base portion 332 is general triangular, and sectional area is mutually different.In addition, first branch's base portion 330 and second branch's base portion 332 are alternately positioned at the circumferential of main part 310.
The first branching portion 320 formations are with the outer peripheral face of first branch's base portion 330 and main part 310 in roughly same, and the second branching portion 322 forms with the outer peripheral face of second branch's base portion 332 and main part 310 in roughly same.
This toothbrush bristle 300, the first harder branching portion 320 of hair hardness has improved its spatter property, and the second more soft branching portion 322 of hair hardness has improved excellent tactility.
Central shaft O4 connects cardinal extremity and the branching portion cardinal extremity of main part 310, and with respect to the length direction of toothbrush bristle 300 vertical, the line that passes through the center of arbitrary section.
Embodiment
, illustrate that embodiment describes the present invention in detail below, but the present invention be defined in following description.
(embodiment 1)
Utilize extrusion molding PBT is pushed and obtain the fiber with hollow bulb, this fiber impregnation, in solvent (NaOH of 50 quality %), is obtained to the toothbrush bristle identical with the toothbrush bristle 1 of the first embodiment.The specification of the toothbrush bristle obtaining is as shown in table 1.This toothbrush bristle, owing to obtaining by the method (in table, this processing method being denoted as " dissolving ") being immersed in solvent, therefore, manufactures efficiency high.
Then, for making the bristle number of each pieces, be 20, and by folding into two 10 toothbrush bristles, in a 4 row × 7 layer mode, plant hair and obtain toothbrush.To obtained toothbrush, to planting a mao adaptability, narrow part spatter property and face spatter property, evaluate, and in table 1, represent its result.
(embodiment 2)
Except the toothbrush bristle 100 of toothbrush bristle and the second embodiment is identical, all the other are identical with embodiment 1 and obtain toothbrush.For obtained toothbrush, to planting a mao adaptability, narrow part spatter property and face spatter property, evaluate, and in table 1, represent its result.
(comparative example 1)
Utilize extrusion molding to push PBT and obtain the fiber of the cloverleaf pattern that cross sectional shape is three leaves (multi-leaf-shaped), by this fiber impregnation in solvent (NaOH of 50 quality %) except obtaining the toothbrush bristle identical with patent documentation 1, all the other identical with embodiment 1 and obtain toothbrush.For obtained toothbrush, to planting a mao adaptability, narrow part spatter property and face spatter property, evaluate, and in table 1, represent its result.
(comparative example 2)
According to patent documentation 2, except being that fiber that nylon, sandwich layer are PBT grinds and obtains toothbrush bristle to top layer, all the other and embodiment 1 obtain toothbrush in the same manner.This toothbrush bristle, manufacture by two with the fiber this point that upper strata was formed on and by grinding, form in branching portion this point and (in table, this processing method be denoted as " grinding "), manufacture method is more numerous and diverse.For obtained toothbrush, to planting a mao adaptability, narrow part spatter property and face spatter property, evaluate, and in table 1, represent its result.
(comparative example 3)
According to patent documentation 3, except using protuberance for nylon, the bed portion fiber that is PBT, all the other and embodiment 1 obtain toothbrush in the same manner.This toothbrush bristle, in the fiber this point of manufacturing island structure, manufacture method is more numerous and diverse.For obtained toothbrush, to planting a mao adaptability, narrow part spatter property and face spatter property, evaluate, and in table 1, represent its result.
(comparative example 4)
Except the cross sectional shape of fiber being made around diameter, be that the circular axis of 120 μ m and ring-type configuration diameter are four circular (multi-leaf-shaped) of 60 μ m, all the other and comparative example 1 obtain toothbrush in the same manner.For obtained toothbrush, to planting a mao adaptability, narrow part spatter property and face spatter property, evaluate, and in table 1, represent its result.
(comparative example 5)
According to patent documentation 4, utilize extrusion molding to push PBT, and form six kicks, obtain cross section profile for orbicular fiber roughly.With rotating knife, one end of this fiber is processed, obtain the toothbrush (in table, this processing method being denoted as " cutting ") that is formed with branching portion.With obtained toothbrush bristle, obtain in the same manner toothbrush with embodiment 1, for obtained toothbrush, to planting a mao adaptability, narrow part spatter property and face spatter property, evaluate, and in table 1, represent its result.
(evaluation method)
< plants a mao adaptability >
To the toothbrush of each example, with the naked eye observe the toothbrush bristle of being planted after hair, will think unbroken being evaluated as " B ", will think damaged be evaluated as " D ".
< narrow part spatter property >
With the toothbrush of each example, to cleaning in oral cavity, according to following metewand, evaluate narrow part spatter property.
< < metewand > >
A: the tooth dirt of obviously feeling neck portion is removed.
B: the tooth dirt of feeling neck portion is removed.
C: not too feel that the tooth dirt of neck portion is removed.
D: the tooth dirt of complete imperceptible neck portion is removed.
< face spatter property >
With the toothbrush of each example, to cleaning in oral cavity, according to following metewand, evaluate narrow part spatter property.
< < metewand > >
A: obviously 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: not too 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, applied embodiments of the invention 1～2, it is good that it plants mao adaptability, and narrow part spatter property and face spatter property are " B " or " A ".In addition, the toothbrush bristle of embodiment 1～2, because its manufacture efficiency is high, and can process and obtain the fiber consisting of single material, therefore can manufacture with lower cost.
On the other hand, multi-leaf-shaped fiber is processed and the comparative example 1 and 4 that obtains, because main part is not roughly just to justify, therefore plant mao adaptability for " D ".
Comparative example 2 is owing to using the fiber of multi-ply construction and it is ground and forms branching portion, therefore it is low to manufacture efficiency.In addition, narrow part spatter property is " C ".
Comparative example 3 is because the shape of its branching portion is straight line, therefore narrow part spatter property is " C ".
Comparative example 5 is because the shape of its branching portion is straight line, therefore narrow part spatter property is " C ".
From above result, applied toothbrush bristle of the present invention, be judged as: to the spatter property excellence of the flank of tooth, occlusal surface and narrow part, can easily manufacture, and the manufacture adaptability excellence of toothbrush.
Practicality in industry
Adopt the present invention, can provide a kind of flank of tooth, occlusal surface and narrow part spatter property excellence, can easily manufacture and the toothbrush bristle of the manufacture adaptability excellence of toothbrush.
Claims (4)
1. a toothbrush bristle, have: the columned main part extending towards top from cardinal extremity and extension are arranged on the plural branching portion described main part, described branching portion is made towards top the shape of undergauge gradually, and this toothbrush bristle is characterised in that
Described main part, is formed with towards the described branching portion reducing diameter part of undergauge gradually at the cardinal extremity near described branching portion.
2. toothbrush bristle as claimed in claim 1, is characterized in that, the cross sectional shape of described branching portion is polygon.
3. a toothbrush, is characterized in that, is planted hair just like the toothbrush bristle described in claim 1 or 2.
4. a manufacture method for toothbrush bristle as claimed in claim 1 or 2, is characterized in that, comprises following operation:
Resinous fibre bundle bundle is made to fibre bundle; And
The arbitrary end of described fibre bundle, facing to vertical below, is immersed in the part of random length from described any end face of described fibre bundle solvent,
Described fiber is formed with the hollow bulb extending along the length direction of described fiber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011178830A JP6435539B2 (en) | 2011-08-18 | 2011-08-18 | Toothbrush bristles, manufacturing method thereof, and toothbrush |
| JP2011-178830 | 2011-08-18 | ||
| 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 true CN103732104A (en) | 2014-04-16 |
| CN103732104B CN103732104B (en) | 2016-08-17 |
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Family Applications (1)
| 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107708482A (en) * | 2015-06-16 | 2018-02-16 | 狮王株式会社 | Toothbrush hair and toothbrush |
Families Citing this family (5)
| 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 |
| KR101721766B1 (en) * | 2015-08-13 | 2017-03-30 | 김평옥 | a toothbrush with the funtion of both teeth cleansing and oral cavity massage |
| EP3351143B1 (en) | 2017-01-24 | 2019-11-06 | The Procter and Gamble Company | Tuft picker for a brush making machine |
| EP3351142B1 (en) | 2017-01-24 | 2019-10-16 | 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 (5)
| 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 |
| JP2010082094A (en) * | 2008-09-30 | 2010-04-15 | Sunstar Inc | Toothbrush filament and toothbrush provided with the same |
| JP2010233794A (en) * | 2009-03-31 | 2010-10-21 | Toray Monofilament Co Ltd | Bristle material for makeup brush and makeup brush |
Family Cites Families (6)
| 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 |
-
2011
- 2011-08-18 JP JP2011178830A patent/JP6435539B2/en active Active
-
2012
- 2012-08-14 CN CN201280040117.1A patent/CN103732104B/en active Active
- 2012-08-14 KR KR1020147001589A patent/KR102013966B1/en active IP Right Grant
- 2012-08-14 WO PCT/JP2012/070690 patent/WO2013024851A1/en active Application Filing
Patent Citations (5)
| 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 |
| JP2010082094A (en) * | 2008-09-30 | 2010-04-15 | Sunstar Inc | Toothbrush filament and toothbrush provided with the same |
| JP2010233794A (en) * | 2009-03-31 | 2010-10-21 | Toray Monofilament Co Ltd | Bristle material for makeup brush and makeup brush |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107708482A (en) * | 2015-06-16 | 2018-02-16 | 狮王株式会社 | Toothbrush hair and toothbrush |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103732104B (en) | 2016-08-17 |
| WO2013024851A1 (en) | 2013-02-21 |
| JP2013039268A (en) | 2013-02-28 |
| JP6435539B2 (en) | 2018-12-12 |
| KR102013966B1 (en) | 2019-08-23 |
| KR20140063571A (en) | 2014-05-27 |
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