CN1665427A - Wear-indicating filament - Google Patents
Wear-indicating filament Download PDFInfo
- Publication number
- CN1665427A CN1665427A CN038151928A CN03815192A CN1665427A CN 1665427 A CN1665427 A CN 1665427A CN 038151928 A CN038151928 A CN 038151928A CN 03815192 A CN03815192 A CN 03815192A CN 1665427 A CN1665427 A CN 1665427A
- Authority
- CN
- China
- Prior art keywords
- brush
- core
- filament
- layer
- wear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
- A46B15/0004—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means
- A46B15/001—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means with means indicating the remaining useful life of brush
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
Abstract
The invention relates to a wear-indicating filament for use in a brush, comprising a central axis, a core extendingalong the central axis, said core being covered by a layer having a pre-determined resistance to wear, said layer wearing away over a pre-determined period of use dependent on its resistance to wear and exposing at least a partof the core after said period. The layer comprises a material which absorbs relatively little water and the core comprises, seen in a cross-section, at least two segments in an asymmetrical arrangement along the central axis of the filament, which segments have a mutually different absorption of water and show a difference in expansion when the layer has worn away and the core is exposed to water. When the at least two segments of the cross-section of the filament become exposed to water, the segments show a difference in absorption of water and a difference in expansion resulting from this absorption. The difference in expansion causes the filament to bend, which will be noticed by the user visually and during use of the brush on the teeth. This provides a clear indication that the brush should be replaced, because the bent filaments give a warning to the user in a visual manner and in a tactile manner.
Description
The present invention relates to be used for the wear-indicating filament on the brush, comprise central shaft, core along described central shaft extension, the layer that described core is had predetermined wearability covers, wearability according to described layer, described layer is worn after using preset time, exposes at least a portion of described core after using preset time.
The invention still further relates to and comprise a plurality of wear-indicating filament that comprise central shaft separately, core along described central shaft extension, the layer that described core is had predetermined wearability covers, wearability according to described layer, described cover layer is worn after using preset time, and exposes at least a portion of described core after described service time.
Filament in type defined in the above opening paragraph is disclosed among the GB 2323026.Described known filament is included in the brush of toothbrush, and, comprising the core that constitutes by material with a kind of color, this core is coated with the Biodegradable polymeric material that one deck has another kind of color.Described core is to make with the material of polyamide type, and when this material contacted with water, it can absorb less water.When described filament being used for use with the cleaning agent such as toothpaste, described cover layer can decompose, and after through one in check period, by mechanical wear, exposes the core with different colours.The signal of a new brush of necessary replacing has been sent in the exposure of described core to the user.
The defective of described known filament is that after by the described core reminding user to replace brush of exposure, the user may continue to use described brush.Like this, the user will use by the more and more serious brush of germ contamination, and exceeds the time limit to use, and this makes described user will emit the risk of health aspect.
The purpose of this invention is to provide the wear-indicating filament that is used on the brush, the clearly indication that it can provide brush to change, and the risk that provided user after this indication to continue to use described brush already can be provided for it.
In order to realize this purpose, wear-indicating filament of the present invention is characterised in that, described cover layer comprises the material that can absorb less water, and from section, described core comprises at least two parts of arranging along the described central shaft of described filament asymmetricly, and described part has the water absorbing capacity that differs from one another, and is worn at described cover layer, and when described core touches water, show different expansive forces.During use, the cover layer that covers described core absorbs water hardly, therefore, can guarantee that described brush normally plays a role.After the process use of certain hour, this cover layer is worn, and this can cause described core to touch water during use.When at least two parts on the section of described filament touched water, these two parts showed the difference aspect water absorbing force, and because the difference of the expansive force that difference caused of this water absorbing force.The difference of described water absorbing force can be the difference of absorption speed or the difference of water absorption.The difference of described expansive force causes described filament bend, its central shaft of lateral run-out, and this crooked meeting be seen by the user, and can feel when brushing teeth with described brush.Provide the clear and definite information that needs to change brush thus, because the filament of described bending has proposed warning with visual manner and tactile manner to the user.
When first comprises when being selected from following one group polyamide is favourable: PA-6, PA-6.6.These materials are fit to form one of described part in the described core, because PA-6 has 10% higher maximum water absorption, and the maximum water absorption of PA-6.6 is 8.5%, and these two kinds of materials can both expand when touching water faster.
When second portion comprises when being selected from following one group polyamide is favourable: PA-6.10, PA-6.11, PA-6.12.These polyamide have lower water absorbing force, and compare with above-mentioned PA-group, a little less than the influence that is subjected to when they touch water.On described core, provide the preferred embodiment of described part with this combination of materials of two types, they have the water absorbing force that differs from one another, and wear away already at described layer, and described core shows the difference of expansive force when touching water.
When described layer comprises when being selected from following one group material is favourable: polyester, polyethylene, polypropylene.These materials absorb water hardly, and this makes them be fit to constitute the cover layer that covers described core, and they wear and tear during use.Therefore, these materials can prevent that described core from contacting with water, and guarantee in this time limit that the filament in the described brush can normally play a role in the predetermined service time of described filament.
The feature of a kind of embodiment of filament of the present invention is, form by two layer segments on the described core outer surface by covering for described cover layer, they have the wearability that differs from one another, and, described core comprises first and the second portion with same material, and they have the water absorbing force that differs from one another, and wears away already at a layer segment, and when described core touches water, show the difference of expansive force.After using a period of time, the described ground floor part with minimum wearability at first is worn, and described another layer segment is kept perfectly.Like this, described layer weares and teares along described central shaft in asymmetric mode.The first that appears near the described core of described ground floor part at first contacts with water, and absorbs water, causes this demi-inflation thus.And described other parts do not touch any water as yet, have caused the difference of the expansive force between these two parts thus, thereby make described filament bend.
The feature of a kind of embodiment of filament of the present invention is that described cover layer has different colors with at least one described part.Further strengthened thus and offered the visual signal user, that should change brush.
According to the present invention, a kind of brush that is limited as the opening paragraph part is characterized in that described wear-indicating filament comprises filament of the present invention.In the another embodiment of brush of the present invention, described brush comprises the brush that is used to be selected from the toothbrush and the personal care applications of beauty treatment brush, or is selected from the floor care brush, the brush of paint brush and industrial brushes.Described wear-indicating filament of the present invention preferably can be applicable on various types of brushes.
The present invention will be described in more detail below in conjunction with accompanying drawing, wherein:
Fig. 1 is the side view with brush of the filament of first kind of embodiment according to the present invention;
Fig. 2 represents along the cutaway view of the filament of Fig. 1 center line II-II;
Fig. 3 represents to be in the filament of the present invention of case of bending;
Fig. 4 represents second kind of embodiment cutaway view of filament of the present invention; With
Fig. 5 represents the third embodiment cutaway view of filament of the present invention.
Fig. 1 represents to comprise the brush 1 of a plurality of wear-resisting filaments 2 of the present invention.Each root filament 2 comprises core 3, and it extends along central shaft 5, and the layer 4 that it is had a predetermined wearability covers.Described layer 4 is worn after using the scheduled time according to its wearability, and after described service time, at least a portion of core 3 comes out.Described layer 4 comprises the material that can absorb less water, and from the section A along the line II-II Fig. 1, described core 3 comprises along at least two parts 31,32 of the described central shaft 5 asymmetric distributions of filament 2, as what can see from Fig. 2.Described part 31,32 has the water absorbing force that differs from one another, and has worn away already and described core 3 shows the difference of expansive force when touching water at described layer 4.As shown in Figure 3, since the difference of the expansive force between the described part 31 and 32, described filament 2 bendings.The filament of the bending on described brush 1 is to inform that the user must more renew the clearly indication of brush.
In the present embodiment, described first 31 comprises the polyamide of PA-6 type, and described second portion 32 comprises the polyamide of PA-6.12 type.PA-6 has 10% higher maximum water absorption, and can expand quickly when touching water.Therefore, this material can be optimized for the first on the long filament of the present invention.Compare with the polyamide of above-mentioned PA-6 type, PA-6.12 has lower water absorbing force, and less and still less and more lentamente expands when touching water.This polyamide material of two types is combined on the described core, the preferred embodiment of described part is provided.Should be noted that, also other combinations of polyamide or different materials can be used for described part, as long as described part 31,32nd, form by material, and worn away already and core 3 shows the difference of expansive force when touching water at described cover layer 4 with the water absorbing force that differs from one another.For example, described part can also comprise PA-6.6 and PA-6.10 respectively.
In the present embodiment, described layer comprises polyester.Should be pointed out that described layer can also comprise polyethylene or polypropylene or any other known materials, as long as it is to comprise the material that can absorb less water.For example, one of described part can be to use with described layer identical materials to make.
Fig. 4 represents the cutaway view of second kind of embodiment of long filament 2 ' of the present invention, wherein, from section, core 3 ' comprises along the described central shaft of described filament three parts 31 ', 32 ', 33 ' arranged evenly asymmetricly, they have the water absorbing force that differs from one another, and be worn already at described layer, and described core shows the difference of expansive force when touching water.Described part can also comprise the combination of polyamide or other materials, as long as described part 31 ', 32 ', 33 ' is to make with the material with the water absorbing force that differs from one another, and when described layer 4 ' had been worn already, and described core 3 ' shows different expansive forces just when touching water.Should be pointed out that and on the core of filament of the present invention, can comprise three with top.In the present embodiment, described layer 4 ' and part 31 ' have the color that differs from one another.The wearing and tearing of described filament are by layer 4 ' fades, and the color of described first 31 ' becomes and can see and visually further strengthened by the layer of wearing and tearing.When described layer was worn away already fully, and when described first 31 ' can see, the extra indication that provides described brush to change thus, subsequently, caused the bending of described filament by the material of described part, described material has different water absorbing forces, and has worn away already at described layer 4 ', and described core 3 ' shows the difference of expansive force when touching water.
Fig. 5 represents filament 2 of the present invention " the cutaway view of the third embodiment; wherein; layer 4 " be by being positioned at core 3 " outer surface 43 on two layer segments 41; 42 constitute, and these two parts have the wearability that differs from one another, and described core 3 " comprise first and second parts 31 with same material "; 32 ", described part has the water absorbing force that differs from one another, and has worn away already at layer segment 41, and described core shows different expansive forces when touching water.In described embodiment, described ground floor part 41 has minimum wearability, and described wearability is chosen such that so that described brush does not have hygienic risk can finish during use the time.When this preferred use age had finished already, described ground floor part 41 had worn away already, and directly was present in the core 3 below the described ground floor 41 " described first 31 " can touch water.This part 31 " can absorb described water quickly, and therefore than described second portion 32 " expand quickly, caused filament 2 thus " bending.
Have found that brush 1 can be the brush that is used for personal care applications, as electric toothbrush or facial cleaning device.Described brush can also be to be selected from following one group brush: floor care brush, paint brush, and industrial brushes.
Claims (8)
1. be used for the wear-indicating filament on the brush, comprise:
-central shaft;
-the core of extending along described central shaft;
The layer that-described core is had predetermined wearability covers;
-according to described layer wearability, described cover layer is worn after through predetermined service time, and after described service time, expose at least a portion of described core, it is characterized in that, described layer comprises the material that can absorb less water, and from section, described core comprises at least two parts of arranging along the described central shaft of described filament asymmetricly, described part has the water absorbing force that differs from one another, and be worn at described layer, and during described core contact water, show different expansive forces.
2. wear-indicating filament as claimed in claim 1 is characterized in that, first comprises and is selected from following group polyamide: PA-6, PA-6.6.
3. wear-indicating filament as claimed in claim 1 is characterized in that, second portion comprises and is selected from following group polyamide: PA-6.10, PA-6.11, PA-6.12.
4. wear-indicating filament as claimed in claim 1 is characterized in that, described layer comprises and is selected from following group material: polyester, polyethylene and polypropylene.
5. wear-indicating filament as claimed in claim 1, it is characterized in that, form by two layer segments on the described core outer surface by covering for described cover layer, they have the wearability that differs from one another, and described core comprises first and the second portion with same material, they have the water absorbing force that differs from one another, and wore away already at a layer segment, and described core shows different expansive forces when touching water.
6. as the wear-indicating filament of above-mentioned any one claim, it is characterized in that described cover layer and at least one described part have the color that differs from one another.
7. brush that comprises many wear-indicating filament comprises:
The core of-vertical distribution of forming by first kind of material;
-described core is had second kind of layer of material covers of predetermined wearability;
-according to described tectal wearability, described cover layer is worn after through predetermined service time, and after described service time, expose at least a portion of described core, it is characterized in that described wear-indicating filament belongs to the wear-indicating filament as above-mentioned any one claim.
8. brush as claimed in claim 7 is characterized in that, described brush comprises the brush that is used to be selected from the toothbrush and the personal care applications of beauty treatment brush, or is selected from the floor care brush, the brush of paint brush and industrial brushes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02077584.7 | 2002-06-27 | ||
| EP02077584 | 2002-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1665427A true CN1665427A (en) | 2005-09-07 |
Family
ID=29797245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN038151928A Pending CN1665427A (en) | 2002-06-27 | 2003-06-04 | Wear-indicating filament |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20050204500A1 (en) |
| EP (1) | EP1519664A1 (en) |
| JP (1) | JP2005530577A (en) |
| CN (1) | CN1665427A (en) |
| AU (1) | AU2003236962A1 (en) |
| WO (1) | WO2004002267A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106413471A (en) * | 2014-06-13 | 2017-02-15 | 欧莱雅公司 | Replacement indicating brush |
| CN106510881A (en) * | 2016-12-16 | 2017-03-22 | 广州薇美姿实业有限公司 | Brush head replacement indication method of electric toothbrush and electric toothbrush with brush head replacement indication function |
| US10021964B2 (en) | 2014-06-13 | 2018-07-17 | L'oreal | Replacement indicating brush |
| CN110040604A (en) * | 2018-01-15 | 2019-07-23 | 奥的斯电梯公司 | The abrasion detection of elevator belt |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050148907A1 (en) * | 2003-12-24 | 2005-07-07 | Gregory Skover | Treatment of skin using a benefit agent and an apparatus |
| JP2008546466A (en) * | 2005-06-21 | 2008-12-25 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Wear indicator for personal care equipment |
| DE102005045501A1 (en) * | 2005-09-23 | 2007-03-29 | Braun Gmbh | Wear and tear indicating dyestuff introducing method for toothbrush, involves supplying consumable-medium-mixture, which stays under pressure for predetermined application time, to toothbrush filaments or wear and tear part |
| WO2007039879A1 (en) * | 2005-10-04 | 2007-04-12 | Koninklijke Philips Electronics, N.V. | Magnetic actuated wear indicator for personal care appliances |
| EP2094322B1 (en) * | 2006-12-22 | 2014-10-29 | Sca Hygiene Products AB | Bicomponent superabsorbent fibre |
| EP2198744B1 (en) * | 2008-12-19 | 2011-11-09 | Braun GmbH | Bristle tuft and toothbrush with bristle tuft |
| US9638411B2 (en) * | 2011-05-16 | 2017-05-02 | Emanuele Antonio SALTALAMACCHIA | Apparatus and methods for illuminating an area surrounding a brush |
| US20130000659A1 (en) * | 2011-12-01 | 2013-01-03 | Davis John J | Toothbrush/toothpaste fluoride dosing toothbrush, system and method |
| US10736413B2 (en) | 2017-07-31 | 2020-08-11 | L'oreal | Systems, devices, and methods of a self-activation use odometer for a skin care brush |
| US11134771B2 (en) | 2019-05-06 | 2021-10-05 | L'oreal | Skin care brush systems having cleansing agent-infused elements |
| US11707130B2 (en) | 2019-12-26 | 2023-07-25 | L'oreal | Fluid-filled cleaning head |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3258805A (en) * | 1964-11-04 | 1966-07-05 | Rossnan Michael | Tooth brush |
| FR2539283A1 (en) * | 1983-01-14 | 1984-07-20 | Schlerf Coronet Werke | PLASTIC HAIR |
| JPH0819570B2 (en) * | 1986-09-12 | 1996-02-28 | チッソ株式会社 | Heat-bondable composite fiber and method for producing the same |
| US4802255A (en) * | 1987-08-10 | 1989-02-07 | Gillette Canada Inc. | Novel brush filaments |
| FR2622779A1 (en) * | 1987-11-05 | 1989-05-12 | Marc Ruffray | Tooth brush giving a visual indication of wear |
| US5313909A (en) * | 1992-11-05 | 1994-05-24 | Gillette Canada Inc. | Brush filaments |
| US5770307A (en) * | 1995-10-18 | 1998-06-23 | E. I. Du Pont De Nemours And Company | Coextruded monofilaments |
| DE19640726A1 (en) * | 1996-10-02 | 1998-04-23 | Braun Ag | Bristle for a toothbrush |
| GB2323026B (en) | 1997-03-12 | 2001-05-09 | Wisdom Toothbrushes Ltd | Colour-changing wear-indicating filaments |
| DE29711181U1 (en) * | 1997-06-26 | 1998-10-29 | Schiffer Fa M & C | Brush, especially toothbrush |
-
2003
- 2003-06-04 EP EP03735878A patent/EP1519664A1/en not_active Withdrawn
- 2003-06-04 AU AU2003236962A patent/AU2003236962A1/en not_active Abandoned
- 2003-06-04 CN CN038151928A patent/CN1665427A/en active Pending
- 2003-06-04 US US10/518,838 patent/US20050204500A1/en not_active Abandoned
- 2003-06-04 JP JP2004517052A patent/JP2005530577A/en not_active Withdrawn
- 2003-06-04 WO PCT/IB2003/002484 patent/WO2004002267A1/en not_active Application Discontinuation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106413471A (en) * | 2014-06-13 | 2017-02-15 | 欧莱雅公司 | Replacement indicating brush |
| US10021964B2 (en) | 2014-06-13 | 2018-07-17 | L'oreal | Replacement indicating brush |
| CN106413471B (en) * | 2014-06-13 | 2019-05-10 | 欧莱雅公司 | Replacement instruction brush |
| CN106510881A (en) * | 2016-12-16 | 2017-03-22 | 广州薇美姿实业有限公司 | Brush head replacement indication method of electric toothbrush and electric toothbrush with brush head replacement indication function |
| CN106510881B (en) * | 2016-12-16 | 2018-05-04 | 广州薇美姿实业有限公司 | Brush for electric toothbrush replaces indicating means and the electric toothbrush with brushhead replacement instruction |
| CN110040604A (en) * | 2018-01-15 | 2019-07-23 | 奥的斯电梯公司 | The abrasion detection of elevator belt |
| CN110040604B (en) * | 2018-01-15 | 2021-10-15 | 奥的斯电梯公司 | Wear detection of elevator belts |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004002267A1 (en) | 2004-01-08 |
| JP2005530577A (en) | 2005-10-13 |
| EP1519664A1 (en) | 2005-04-06 |
| US20050204500A1 (en) | 2005-09-22 |
| AU2003236962A1 (en) | 2004-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |