US20040211018A1 - Multi-layer bristle - Google Patents
Multi-layer bristle Download PDFInfo
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- US20040211018A1 US20040211018A1 US10/613,304 US61330403A US2004211018A1 US 20040211018 A1 US20040211018 A1 US 20040211018A1 US 61330403 A US61330403 A US 61330403A US 2004211018 A1 US2004211018 A1 US 2004211018A1
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- United States
- Prior art keywords
- layer
- bristle
- outer layer
- core
- core layer
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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
- A46D1/023—Bristles with at least a core and at least a partial sheath
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
Definitions
- the present invention relates generally to bristles and, more particularly, to multi-layer bristles for use in cleaning products.
- Cleaning tools such as brooms and brushes have bristles attached thereto for collecting dust and debris from a surface, or for scrubbing the surface to remove stains.
- cleaning tools are designed to provide general cleaning functions.
- the aforementioned cleaning tools perform adequately for general everyday cleaning, they lack functionally effective bristle designs for special cleaning needs.
- the current bristle designs and materials do not provide highly effective cleaning that even the most common cleaning applications demand.
- FIG. 1 is a side elevational view of a bristle constructed in accordance with the teachings of the present disclosure.
- FIG. 2 is a cross sectional view of a two-layer bristle constructed in accordance with the teachings of the present disclosure.
- FIG. 3 is a cross sectional view of a three-layer bristle constructed in accordance with the teachings of the present disclosure.
- FIG. 4 is a cross sectional view of a first example of a two-layer flagged tip bristle constructed in accordance with the teachings of the present disclosure.
- FIG. 5 is a side elevational view of the bristle of FIG. 4.
- FIG. 6 s a side elevational view of the bristle of FIG. 4 showing the bristle in a flagged-tip configuration.
- FIG. 7 is a cross sectional view of a second example of a two-layer flagged tip bristle constructed in accordance with the teachings of the present disclosure.
- FIG. 8 s a side elevational view of the bristle of FIG. 7 showing the bristle in a flagged-tip configuration.
- FIG. 9. is a diagrammatic view of a broom having bristles constructed in accordance with the teachings of the present disclosure.
- FIG. 10 is a diagrammatic view of a brush having bristles constructed in accordance with the teachings of the present disclosure.
- Bristle 10 is a two-layer bristle that includes a core 20 and an outer layer 22
- bristle 12 is a three-layer bristle that includes a core 24 , an intermediate layer 26 , and an outer layer 28
- bristle 14 is a two-layer flagged tip bristle that includes a core 30 and an outer layer 32 . Bristle 14 mechanically flags at the tip upon impact (i.e., the outer layer 32 splays and separates from the core 30 ), to provide multiple smaller bristles 34 from one bristle 14 .
- each of the bristles 10 , 12 and 14 which is generally shown in FIG. 1 as bristle 15 , includes an attachment end 31 and a free cleaning tip end 33 that are disposed along a longitudinal axis 29 .
- the attachment end 31 of the bristle 15 is typically attached to a cleaning device, a tool or the like, and therefore is fixed, while the cleaning tip end 33 is free.
- the bristle 15 is flexible but resiliently resists bending.
- a plurality of bristles 15 are generally attached to a cleaning device such as a broom 39 or a brush 41 , as shown in FIGS. 9 and 10.
- the cleaning tip ends 33 of the plurality of bristles define a cleaning head 35 .
- each bristle 15 When the cleaning head 35 is pressed on a surface and moved in a cleaning direction (not shown), the cleaning tip ends 33 of the bristles collectively dislodge dirt, debris and small objects from the surface. Furthermore, because the bristles 15 bend opposite the cleaning direction, the resilient flexibility of each bristle 15 causes the dislodged and collected dirt and debris to be pushed forward of the cleaning direction.
- the density of the cleaning tip ends 33 on the cleaning head 35 combined with the length, the thickness, the length to thickness ratio, the flexibility, and the cross sectional shape of each bristle 15 are a few of the many factors that may influence the cleaning characteristics of the cleaning device, a tool or the like. Additionally, as will be described in the following, the construction materials of each bristle 10 , 12 and 14 influence the cleaning and functional characteristics of a cleaning device, a tool or the like.
- the core 20 and the outer layer 22 can be constructed with different materials to provide a particular function for a tool to which the bristle 20 is attached.
- a rubber bristle is constructed with Polypropylene, Poly Vinyl Chloride, or the like for the core 22 , and a thermoplastic elastomer, rubber, or the like for the outer layer 20 .
- the core 22 provides a stiffer structure than a bristle that is constructed solely from rubber, while the softer outer layer 20 provides better cleaning and is non-abrasive so as to prevent scratching of a surface to which it is applied.
- a germ-free bristle is constructed with an antimicrobial material for the outer layer 20 .
- the outer layer 20 can be constructed with silver zeolite, triclosan, or similar antimicrobial materials.
- the core 22 can be constructed from Polypropylene, Poly Vinyl Chloride, or any similar material that may be well known to those of ordinary skill in the art to be suitable for such a purpose.
- a recycled bristle is constructed with one or more recycled materials for either the core 22 , the outer layer 20 , or both the core 22 and the outer layer 20 .
- the recycled material for the core 22 can include recycled resin.
- the recycled material for the outer layer 20 can include a polymeric resin or plastic resin mixed with finely dispersed particles of a natural fiber, such as, wood, cotton, tampico, palmyra, broom corn, coco, or the like.
- a dust bristle is constructed with an outer layer 20 that has electrically static or anti-static properties to improve dust cleaning by attraction and/or release of dust particles, respectively.
- Materials with such electrical properties include ethoxylated aliphatic amines and amides, quaternary ammonium salts, glycol esters, nonionic surfactants, or other materials that are well known to those of ordinary skill in the art.
- the core layer 22 can be constructed from rubber.
- the core layer 22 can be constructed from Polypropylene, Poly Vinyl Chloride, or the like so as to provide a stiffer structure than a bristle that is constructed solely from rubber.
- the outer layer 20 is constructed with a hydrophilic (i.e., water absorbing) material, such as cotton, to provide a water absorbing cleaning tool.
- the outer layer 20 can be constructed with a hydrophobic (i.e., water repelling) material, such as polystyrene or a rubber blend, to provide a water repelling cleaning tool.
- the core layer 22 can be constructed from rubber.
- the core layer 22 can be constructed from Polypropylene, Poly Vinyl Chloride, or the like so as to provide a stiffer structure than a bristle that is constructed solely from rubber.
- the core 24 , the intermediate layer 26 , and the outer layer 28 can include any of the aforementioned materials disclosed in relation to the two-layer bristle to provide similar specialized functions.
- a three-layer bristle may provide specialized functions in addition to the exemplary functions disclosed in relation to the two-layer bristle.
- bristles with more than three-layers can be constructed to provide highly unique cleaning functions in addition to those disclosed in relation to the two-layer bristle.
- FIGS. 4-6 a first example of a flagged tip bristle 14 is shown.
- the core 30 is cross shaped.
- the outer layer 32 forms four pie-shaped segments that surround the core 30 .
- the outer layer 32 Upon impact of the bristle 14 with a surface, the outer layer 32 will separate from the core 30 at the tip of the bristle 14 and will splay.
- the outer layer 32 includes a resin that does not provide a strong bond with the material used for the core 30 .
- the flagging of the bristle 14 will provide a fuller bristle 14 at the tip by creating multiple smaller bristles 34 from one flagged tip bristle 14 in a controlled manner.
- the flagging provides a cleaning head 35 having a larger number of cleaning tip ends 33 than a cleaning head 35 of comparable size having the same number of bristles.
- the cross sectional shape of the core 30 can be chosen to provide desired flagging characteristics.
- the shape and size of each of the flagged tips 34 can be controlled as desired by accordingly designing the cross sectional shape of the core 30 .
- the core 30 is cross shaped. Accordingly, upon mechanical flagging of the tip of the bristle 14 (i.e., impact of the tip with a surface), the outer layer 32 separates from the core 30 at the tip of the bristle 14 to form four similarly shaped smaller bristles 34 .
- FIGS. 7 and 8 a second example of a flagged tip bristle 14 is shown.
- the outer layer 32 includes a plurality of serrations 37 in addition to including a resin that does not provide a strong bond with the material used for the core 30 .
- the serrations 37 are disposed on the outer layer 32 at the cleaning tip end 33 and running upward a distance along the longitudinal axis 29 . Accordingly, impact of the bristle 14 with a surface causes the outer layer 32 to break along the serrations 37 (shown in FIG. 8), and the weak bond between the outer layer 32 and the core 30 causes the flagged tips to splay from the core 30 .
- each outer layer 22 , 28 and 32 is shown in FIGS. 2, 3, 4 and 7 to be concentric with each core layers 20 , 24 and 30 , respectively.
- the multiple layers of the disclosed bristles 10 , 12 and 14 may be non-concentric to provide different functional characteristics than a concentric bristle.
- Such functional characteristics may include, for example, variations in bending and resiliency characteristics of the bristle that depend on the bending direction.
- the disclosed multi-layer bristles can be manufactured by methods well known to those of ordinary skill in the art. However, in the preferred example, the multi-layer bristles are manufactured by co-extrusion of the multiple layers in the bristles.
- extrusion of multi-layer bristles is similar to conventional profile co-extrusion with multiple extruders feeding a crosshead die with the desired cross section.
- FIG. 9 shows a broom 39 that includes multi-layer bristles that can be used for common or special applications.
- the broom 39 includes a base 43 and a handle 45 .
- Each multi-layer bristle is attached to the broom 39 at the attachment end thereof.
- the cleaning tip ends 33 of the multi-layer bristles are free and form the cleaning head 35 .
- the brush 41 includes multi-layer bristles that can be used for common or special applications.
- the brush includes a base 47 that can be held by a user during application, and a number of multi-layer bristles that are attached to the base 47 at the attachment ends 31 thereof.
- any tool or device that uses bristles can include the disclosed multi-layer bristles.
- the disclosed multi-layer bristles can be used for function specific cleaning tools and grooming tools, such as, toothbrushes, street cleaning machines, shoe shining and cleaning brushes, hair brushes, and other bristle type tools.
- the disclosed multi-layer bristles can be used in a wide variety of tools other than cleaning devices.
- a paint brush can be constructed having the disclosed multi-layer bristles to provide a desired paint application characteristic.
Abstract
A multi-layer bristle includes a core layer and a plurality of outer layers. The outer layers may be flagged to provide multiple smaller bristles. Each of the core layer and the outer layer may have particular material properties to provide the bristle with particular functions bases on the material properties. The multi-layer bristle can be manufactured by the process of co-extrusion.
Description
- This application claims priority from U.S. provisional application Ser. No. 60/393,963, filed Jul. 3, 2002.
- The present invention relates generally to bristles and, more particularly, to multi-layer bristles for use in cleaning products.
- Cleaning tools such as brooms and brushes have bristles attached thereto for collecting dust and debris from a surface, or for scrubbing the surface to remove stains. Such cleaning tools are designed to provide general cleaning functions. Although the aforementioned cleaning tools perform adequately for general everyday cleaning, they lack functionally effective bristle designs for special cleaning needs. Furthermore, the current bristle designs and materials do not provide highly effective cleaning that even the most common cleaning applications demand.
- FIG. 1 is a side elevational view of a bristle constructed in accordance with the teachings of the present disclosure.
- FIG. 2 is a cross sectional view of a two-layer bristle constructed in accordance with the teachings of the present disclosure.
- FIG. 3 is a cross sectional view of a three-layer bristle constructed in accordance with the teachings of the present disclosure.
- FIG. 4 is a cross sectional view of a first example of a two-layer flagged tip bristle constructed in accordance with the teachings of the present disclosure.
- FIG. 5 is a side elevational view of the bristle of FIG. 4.
- FIG. 6 s a side elevational view of the bristle of FIG. 4 showing the bristle in a flagged-tip configuration.
- FIG. 7 is a cross sectional view of a second example of a two-layer flagged tip bristle constructed in accordance with the teachings of the present disclosure.
- FIG. 8 s a side elevational view of the bristle of FIG. 7 showing the bristle in a flagged-tip configuration.
- FIG. 9. is a diagrammatic view of a broom having bristles constructed in accordance with the teachings of the present disclosure.
- FIG. 10 is a diagrammatic view of a brush having bristles constructed in accordance with the teachings of the present disclosure.
- Referring to FIGS. 1-8 of the drawings,
exemplary bristles Bristle 10 is a two-layer bristle that includes acore 20 and anouter layer 22, whilebristle 12 is a three-layer bristle that includes acore 24, anintermediate layer 26, and anouter layer 28. One of ordinary skill in the art will readily appreciate that any number of layers in a bristle constructed in accordance with the teachings of the invention can be provided. Referring to FIG. 3,bristle 14 is a two-layer flagged tip bristle that includes acore 30 and anouter layer 32.Bristle 14 mechanically flags at the tip upon impact (i.e., theouter layer 32 splays and separates from the core 30), to provide multiple smaller bristles 34 from onebristle 14. - Referring to FIG. 1, each of the
bristles bristle 15, includes anattachment end 31 and a freecleaning tip end 33 that are disposed along alongitudinal axis 29. Theattachment end 31 of thebristle 15 is typically attached to a cleaning device, a tool or the like, and therefore is fixed, while thecleaning tip end 33 is free. Thebristle 15 is flexible but resiliently resists bending. A plurality ofbristles 15 are generally attached to a cleaning device such as a broom 39 or abrush 41, as shown in FIGS. 9 and 10. The cleaning tip ends 33 of the plurality of bristles define acleaning head 35. When thecleaning head 35 is pressed on a surface and moved in a cleaning direction (not shown), the cleaning tip ends 33 of the bristles collectively dislodge dirt, debris and small objects from the surface. Furthermore, because thebristles 15 bend opposite the cleaning direction, the resilient flexibility of eachbristle 15 causes the dislodged and collected dirt and debris to be pushed forward of the cleaning direction. One of ordinary skill in the art will readily appreciate that the density of the cleaning tip ends 33 on thecleaning head 35 combined with the length, the thickness, the length to thickness ratio, the flexibility, and the cross sectional shape of eachbristle 15, are a few of the many factors that may influence the cleaning characteristics of the cleaning device, a tool or the like. Additionally, as will be described in the following, the construction materials of eachbristle - Referring to the
bristle 10 shown in FIG. 2, thecore 20 and theouter layer 22 can be constructed with different materials to provide a particular function for a tool to which thebristle 20 is attached. In a first example of the two-layer bristle 10, a rubber bristle is constructed with Polypropylene, Poly Vinyl Chloride, or the like for thecore 22, and a thermoplastic elastomer, rubber, or the like for theouter layer 20. Thecore 22 provides a stiffer structure than a bristle that is constructed solely from rubber, while the softerouter layer 20 provides better cleaning and is non-abrasive so as to prevent scratching of a surface to which it is applied. - In a second example of the two-
layer bristle 10, a germ-free bristle is constructed with an antimicrobial material for theouter layer 20. For example, theouter layer 20 can be constructed with silver zeolite, triclosan, or similar antimicrobial materials. Thecore 22 can be constructed from Polypropylene, Poly Vinyl Chloride, or any similar material that may be well known to those of ordinary skill in the art to be suitable for such a purpose. - In a third example of the two-
layer bristle 10, a recycled bristle is constructed with one or more recycled materials for either thecore 22, theouter layer 20, or both thecore 22 and theouter layer 20. The recycled material for thecore 22 can include recycled resin. The recycled material for theouter layer 20 can include a polymeric resin or plastic resin mixed with finely dispersed particles of a natural fiber, such as, wood, cotton, tampico, palmyra, broom corn, coco, or the like. - In a fourth example of the two-
layer bristle 10, a dust bristle is constructed with anouter layer 20 that has electrically static or anti-static properties to improve dust cleaning by attraction and/or release of dust particles, respectively. Materials with such electrical properties include ethoxylated aliphatic amines and amides, quaternary ammonium salts, glycol esters, nonionic surfactants, or other materials that are well known to those of ordinary skill in the art. Thecore layer 22 can be constructed from rubber. One of ordinary skill in the art will readily appreciate, however, that thecore layer 22 can be constructed from Polypropylene, Poly Vinyl Chloride, or the like so as to provide a stiffer structure than a bristle that is constructed solely from rubber. - In a fifth example of the two-
layer bristle 10, theouter layer 20 is constructed with a hydrophilic (i.e., water absorbing) material, such as cotton, to provide a water absorbing cleaning tool. Similarly, theouter layer 20 can be constructed with a hydrophobic (i.e., water repelling) material, such as polystyrene or a rubber blend, to provide a water repelling cleaning tool. Thecore layer 22 can be constructed from rubber. One of ordinary skill in the art will readily appreciate, however, that thecore layer 22 can be constructed from Polypropylene, Poly Vinyl Chloride, or the like so as to provide a stiffer structure than a bristle that is constructed solely from rubber. - Referring now to the
multi-layer bristle 12 shown in FIG. 2, thecore 24, theintermediate layer 26, and theouter layer 28 can include any of the aforementioned materials disclosed in relation to the two-layer bristle to provide similar specialized functions. One of ordinary skill in the art will readily appreciate that a three-layer bristle may provide specialized functions in addition to the exemplary functions disclosed in relation to the two-layer bristle. Furthermore, bristles with more than three-layers can be constructed to provide highly unique cleaning functions in addition to those disclosed in relation to the two-layer bristle. - Referring now to FIGS. 4-6, a first example of a flagged
tip bristle 14 is shown. As shown in FIG. 6, thecore 30 is cross shaped. Accordingly, theouter layer 32 forms four pie-shaped segments that surround thecore 30. Upon impact of thebristle 14 with a surface, theouter layer 32 will separate from thecore 30 at the tip of thebristle 14 and will splay. To provide such separation or flagging of the tip of thebristle 14 upon impact, theouter layer 32 includes a resin that does not provide a strong bond with the material used for thecore 30. The flagging of thebristle 14 will provide afuller bristle 14 at the tip by creating multiple smaller bristles 34 from one flaggedtip bristle 14 in a controlled manner. In other words, the flagging provides acleaning head 35 having a larger number ofcleaning tip ends 33 than a cleaninghead 35 of comparable size having the same number of bristles. The cross sectional shape of thecore 30 can be chosen to provide desired flagging characteristics. Thus, the shape and size of each of the flagged tips 34 can be controlled as desired by accordingly designing the cross sectional shape of thecore 30. For example, as shown in FIG. 4, thecore 30 is cross shaped. Accordingly, upon mechanical flagging of the tip of the bristle 14 (i.e., impact of the tip with a surface), theouter layer 32 separates from the core 30 at the tip of thebristle 14 to form four similarly shaped smaller bristles 34. - Referring to FIGS. 7 and 8, a second example of a flagged tip bristle14 is shown. The
outer layer 32 includes a plurality ofserrations 37 in addition to including a resin that does not provide a strong bond with the material used for thecore 30. Theserrations 37 are disposed on theouter layer 32 at thecleaning tip end 33 and running upward a distance along thelongitudinal axis 29. Accordingly, impact of thebristle 14 with a surface causes theouter layer 32 to break along the serrations 37 (shown in FIG. 8), and the weak bond between theouter layer 32 and the core 30 causes the flagged tips to splay from thecore 30. - In the disclosed examples, each
outer layer - The disclosed multi-layer bristles can be manufactured by methods well known to those of ordinary skill in the art. However, in the preferred example, the multi-layer bristles are manufactured by co-extrusion of the multiple layers in the bristles. One of ordinary skill in the art will appreciate that extrusion of multi-layer bristles is similar to conventional profile co-extrusion with multiple extruders feeding a crosshead die with the desired cross section.
- Referring to FIGS. 9 and 10, two
exemplary cleaning tools 39 and 41 constructed with the disclosed multi-layer bristles are shown. FIG. 9 shows a broom 39 that includes multi-layer bristles that can be used for common or special applications. The broom 39 includes abase 43 and ahandle 45. Each multi-layer bristle is attached to the broom 39 at the attachment end thereof. The cleaning tip ends 33 of the multi-layer bristles are free and form the cleaninghead 35. Similarly, as shown in FIG. 10, thebrush 41 includes multi-layer bristles that can be used for common or special applications. The brush includes a base 47 that can be held by a user during application, and a number of multi-layer bristles that are attached to the base 47 at the attachment ends 31 thereof. One of ordinary skill in the art will appreciate that any tool or device that uses bristles can include the disclosed multi-layer bristles. For example, the disclosed multi-layer bristles can be used for function specific cleaning tools and grooming tools, such as, toothbrushes, street cleaning machines, shoe shining and cleaning brushes, hair brushes, and other bristle type tools. One of ordinary skill in the are will further appreciate that the disclosed multi-layer bristles can be used in a wide variety of tools other than cleaning devices. For instance, a paint brush can be constructed having the disclosed multi-layer bristles to provide a desired paint application characteristic. - Persons of ordinary skill in the art will appreciate that, although the teachings of the invention have been illustrated in connection with certain embodiments, there is no intent to limit the invention to such embodiments. On the contrary, the intention of this application is to cover all modifications and embodiments fairly falling within the scope of the teachings of the invention.
Claims (21)
1. A multi-layer bristle comprising:
an attachment end and a free end disposed along a longitudinal axis of the bristle;
a core layer constructed from a first material; and
at least one outer layer surrounding the core layer, the outer layer constructed from a second material, the second material being different from the first material.
2. A multi-layer bristle according to claim 1 , wherein the core layer and the at least one outer layer are circular in cross section and concentric.
3. A broom fabricated with a plurality of bristles according to claim 1 .
4. A multi-layer bristle according to claim 1 , wherein the first material is adapted to provide structural support for the bristle.
5. A multi-layer bristle according to claim 1 , wherein the second material includes a non-abrasive material.
6. A multi-layer bristle according to claim 1 , wherein the second material includes an antimicrobial material.
7. A multi-layer bristle according to claim 1 , wherein at least the first material or the second material includes one or more recycled materials.
8. A multi-layer bristle according to claim 1 , wherein the second material includes electrostatic properties for attracting debris onto the bristle.
9. A multi-layer bristle according to claim 1 , wherein the second material includes anti-electrostatic properties for repelling debris from the bristle.
10. A multi-layer bristle according to claim 1 , wherein the second material includes hydrophilic properties to absorb water onto the bristle.
11. A multi-layer bristle according to claim 1 , wherein the second material includes hydrophobic properties to repel water from the bristle.
12. A multi-layer bristle comprising:
an attachment end and a free end disposed along a longitudinal axis of the bristle;
a core layer; and
a plurality of outer layer segments attached to the core layer, wherein the plurality of outer layer segments are adapted to detach from the core layer at the free end of the bristle to form a plurality of flagged tips at the free end of the bristle.
13. A multi-layer bristle according to claim 12 , wherein the core layer includes at least a first material property and the outer layer includes at least a second material property, the first material property being different from the second material property.
14. A multi-layer bristle according to claim 12 , wherein the core layer and the outer layer are shaped to provide a substantially circular cross section for the bristle.
15. A multi-layer bristle according to claim 12 , wherein the outer layer is co-extruded with and surrounds the core layer.
16. A multi-layer bristle according to claim 12 , comprising a resin adapted to attach the outer layer to the core layer, wherein the resin provides a weak bond to form the plurality of flagged tips.
17. A multi-layer bristle according to claim 12 , wherein the outer layer includes a plurality of serrations from the free end to a distance on the outer layer along the longitudinal axis, wherein the outer layer detaches from the core layer at the serrations.
18. A broom fabricated with a plurality of bristles according to claim 12 .
19. A method of manufacturing a multi-layer bristle comprising the steps of:
providing a core layer material including a first material property to a co-extrusion die having a cross section corresponding to a cross section of the bristle, wherein a core layer of the bristle includes the core layer material;
providing at least one outer layer material including a second material property to the co-extrusion die, the second material property being different from the first material property, wherein an outer layer of the bristle includes the outer layer material; and
co-extruding the core layer material and the outer layer material through the co-extrusion die, the co-extruding step forming the bristle having an attachment end and a free end disposed along a longitudinal axis of the bristle.
20. The method of manufacturing a multi-layer bristle according to claim 19 , further comprising the steps of:
forming a plurality of serrations on the outer layer from the free end to a distance on the outer layer along the longitudinal axis, wherein the outer layer separates from the core layer at the serrations upon impact of the free end with a surface to provide a plurality of flagged tips at the free end.
21. The method of manufacturing a multi-layer bristle according to claim 19 , further comprising providing a weak bond between the outer layer and the core layer, wherein the outer layer separates from the core layer upon impact of the free end with a surface to provide a plurality of flagged tips at the free end.
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US10/613,304 US20040211018A1 (en) | 2002-07-03 | 2003-07-03 | Multi-layer bristle |
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US39396302P | 2002-07-03 | 2002-07-03 | |
US10/613,304 US20040211018A1 (en) | 2002-07-03 | 2003-07-03 | Multi-layer bristle |
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US10/613,304 Abandoned US20040211018A1 (en) | 2002-07-03 | 2003-07-03 | Multi-layer bristle |
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Cited By (10)
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US20040187892A1 (en) * | 2003-03-31 | 2004-09-30 | Maguire Walter L. | Scrubbing element with leader |
US20080189952A1 (en) * | 2007-02-09 | 2008-08-14 | Rovcal, Inc. | Personal grooming device having a tarnish resistant, hypoallergenic and/or antimicrobial silver alloy coating thereon |
US20090007357A1 (en) * | 2007-05-07 | 2009-01-08 | The Gillette Company | Oral Hygiene Implements |
WO2009067852A1 (en) * | 2007-11-28 | 2009-06-04 | Yongquan Song | Broom |
US7934284B2 (en) | 2003-02-11 | 2011-05-03 | Braun Gmbh | Toothbrushes |
US20130086764A1 (en) * | 2011-10-06 | 2013-04-11 | Eve Ernst Vetter Gmbh | Radial brush |
US10278485B2 (en) | 2016-09-01 | 2019-05-07 | Colgate-Palmolive Company | Oral care implement and filament therefor |
US10426249B2 (en) | 2016-09-01 | 2019-10-01 | Colgate-Palmolive Company | Oral care implement |
US11553783B2 (en) * | 2019-11-08 | 2023-01-17 | Jacob Koby Ohayon | Interchangeable broom bristle with releasable agent |
EP3745912B1 (en) * | 2018-01-30 | 2023-09-27 | GEKA GmbH | An improved bristle for brushes |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8695149B2 (en) | 2003-02-11 | 2014-04-15 | Braun Gmbh | Toothbrushes |
US7934284B2 (en) | 2003-02-11 | 2011-05-03 | Braun Gmbh | Toothbrushes |
US7958589B2 (en) | 2003-02-11 | 2011-06-14 | The Gillette Company | Toothbrushes |
US20040187892A1 (en) * | 2003-03-31 | 2004-09-30 | Maguire Walter L. | Scrubbing element with leader |
US20080189952A1 (en) * | 2007-02-09 | 2008-08-14 | Rovcal, Inc. | Personal grooming device having a tarnish resistant, hypoallergenic and/or antimicrobial silver alloy coating thereon |
US7897266B2 (en) | 2007-02-09 | 2011-03-01 | Rovcal, Inc. | Personal grooming device having a tarnish resistant, hypoallergenic and/or antimicrobial silver alloy coating thereon |
US20090007357A1 (en) * | 2007-05-07 | 2009-01-08 | The Gillette Company | Oral Hygiene Implements |
WO2009067852A1 (en) * | 2007-11-28 | 2009-06-04 | Yongquan Song | Broom |
US20130086764A1 (en) * | 2011-10-06 | 2013-04-11 | Eve Ernst Vetter Gmbh | Radial brush |
US9226569B2 (en) * | 2011-10-06 | 2016-01-05 | Eve Ernst Vetter Gmbh | Radial brush |
US10278485B2 (en) | 2016-09-01 | 2019-05-07 | Colgate-Palmolive Company | Oral care implement and filament therefor |
US10426249B2 (en) | 2016-09-01 | 2019-10-01 | Colgate-Palmolive Company | Oral care implement |
US11103056B2 (en) | 2016-09-01 | 2021-08-31 | Colgate-Palmolive Company | Oral care implement and filament therefor |
EP3745912B1 (en) * | 2018-01-30 | 2023-09-27 | GEKA GmbH | An improved bristle for brushes |
US11553783B2 (en) * | 2019-11-08 | 2023-01-17 | Jacob Koby Ohayon | Interchangeable broom bristle with releasable agent |
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