EP1073353A1 - Poil de brosserie, son procede de production et appareil comportant un tel poil de brosserie - Google Patents

Poil de brosserie, son procede de production et appareil comportant un tel poil de brosserie

Info

Publication number
EP1073353A1
EP1073353A1 EP99923408A EP99923408A EP1073353A1 EP 1073353 A1 EP1073353 A1 EP 1073353A1 EP 99923408 A EP99923408 A EP 99923408A EP 99923408 A EP99923408 A EP 99923408A EP 1073353 A1 EP1073353 A1 EP 1073353A1
Authority
EP
European Patent Office
Prior art keywords
bristle
rubber
core
elastic layer
profiled
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.)
Granted
Application number
EP99923408A
Other languages
German (de)
English (en)
Other versions
EP1073353B1 (fr
Inventor
Georg Weihrauch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pedex GmbH
Original Assignee
Pedex GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pedex GmbH filed Critical Pedex GmbH
Publication of EP1073353A1 publication Critical patent/EP1073353A1/fr
Application granted granted Critical
Publication of EP1073353B1 publication Critical patent/EP1073353B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • A46D1/0238—Bristles with non-round cross-section
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0246—Hollow bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0261—Roughness structure on the bristle surface
    • 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
    • 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
    • Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
    • Y10T428/2924—Composite
    • 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]
    • 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]
    • Y10T428/2931—Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]

Definitions

  • the invention relates to a bristle consisting of a core made of a comparatively hard, flexible plastic and at least one layer made of a rubber-elastic plastic.
  • the invention further relates to a method for producing such bristles and devices which are equipped with such bristles.
  • bristles Regardless of the particular use of a brush, bristles have some basic requirements.
  • brushes for oral and personal care must be sufficiently soft to avoid injuries, while abrasive technical brushes should have hard and rough bristles.
  • Other technical brushes, such as car wash brushes, on the other hand must be smooth and smooth. This also applies to polishing brushes.
  • Brushes or brushes that are used to apply media must have relatively narrow bristles for storing the medium, while in other applications, single bristles or bundles of bristles are desired.
  • a bristle is proposed in (21), which consists of an extruded, relatively rigid core made of PA (polyamide) or high-density PE (polyethylene) and a soft thermoplastic layer made of natural or synthetic rubber.
  • This well-known bristle is designed for toothbrushes, whereby the soft rubber-elastic coating is primarily intended to ensure gentle treatment of the teeth and gums, while the stiff core ensures the necessary strength properties of the bristle.
  • such a bristle does not meet the requirements for cleaning because its surface is too smooth. It is also not suitable for applying media to an object.
  • Ol X rö - ⁇ ß -H ⁇ N ti ⁇ ß rß CQ ⁇ rö X 0 --ti Ol X ⁇ X ⁇ SH -H
  • the core can be formed from one or more monofilaments.
  • the former version is recommended for tooth and body brushes, the latter version for technical brushes, especially for car wash brushes.
  • the bristles have to be limp in order to optimally create the contour of the surface to be cleaned and to gently clean the surface. These bristles wear out very quickly from the free end.
  • Bristles usually have a circular cross section.
  • any other bristle cross section can also be realized by the core having a shape that deviates from the circular shape
  • Cross-section e.g. a narrow rectangular or cross-shaped or star-shaped cross-section.
  • the rubber-elastic layer can then nevertheless have a circular cross section, so that it has a different thickness and can be embossed, for example, in the thicker areas. Instead, it can also have a cross section that follows the cross section of the core, so that profiles of the same depth can be produced regardless of the location of the embossing, the core again acting as an abutment here.
  • the entire bristle made of core and rubber-elastic layer can be corrugated transversely to the direction of extension of the bristle.
  • the core is obtained through a surface structure on the core that acts as an adhesion promoter.
  • the invention proposes a method in which the core and the rubber-elastic layer are co-extruded as a strand and the rubber-elastic layer is profiled by stamping against the core while the strand is running.
  • Another variant of the method is that the core and the rubber-elastic layer are co-extruded as an endless strand, the strand is wound and the rubber-elastic layer is passed through when the strand is being unwound
  • Embossing is profiled against the core.
  • the embossing can take place at the manufacturer of the bristle material or only at the brush manufacturer.
  • This process can also be recommended if the rubber-elastic layer consists of a slowly cross-linking elastomer and the embossing process should only be carried out after the cross-linking reaction has ended.
  • the rubber-elastic layer is preferably profiled by means of stamping tools which act against one another and against the core, the stamping tools being able to produce different profiles. It is also possible to provide only one-sided profiling, in which case the embossing tool works together with an unprofiled counter-tool.
  • a soft plastic can be applied to the profiled strand on the occasion of the production of the bristle material or before the bristles are cut to length, by extrusion, dipping, spraying or shrinking on a film, for example to smooth the profile.
  • the core and the rubber-elastic layer are co-extruded as a strand, the bristle is then cut to length from the strand and the rubber-elastic layer is then profiled against the core by embossing.
  • the film-like layer can be applied before or after cutting to length by dipping, spraying or shrinking on a film.
  • the bristle designed according to the invention can be used for devices of all kinds.
  • such a bristle can be used directly as an interdental cleaner, either in the form of a stick or similar to a dental floss.
  • a brush is equipped with a plurality of bristles designed according to the invention, the bristles being able to be provided in separate arrangements.
  • a brush can have bristles with differently profiled, rubber-elastic layers.
  • 1 has a core 2 made of a o CU ⁇ ß X
  • ß ro rH PJ ß rß 0 - X Oi HX ü XH ß XI ⁇ ß rH H ß> -H ß Ti ß X -H -H ß f ⁇ ⁇ MX ⁇ • 4H ⁇ Ti ß EH S CQ -H ⁇ - H SH ⁇ ⁇ u ß t ti CQ ⁇ X 4H X ⁇ ß ⁇ ß X EH CN 0 rH ⁇ X rH CQ -H
  • Layer 3 has a circular cross-section. It is therefore the thinnest in the region of the ends of the bars of the cross section 10. This forms sharply defined abutments against which the profile - as indicated by the arrows 11 - can be embossed particularly well.
  • the bristle 1 in turn has a core 2 with a circular cross section.
  • the rubber-elastic layer 3 enveloping it is embossed with a wave profile 12.
  • FIG. 7 shows an embodiment modified compared to FIG. 1, in that the core 2 consists of four monofilaments 13, which can be in parallel or twisted.
  • the rubber-elastic layer 3 in turn surrounds the core 2 with a circular cross section and has the embossed profile on its jacket.
  • the core 2 has an elongated cross section.
  • the rubber-elastic layer 3 is provided with a constant thickness, so that it follows the cross section of the core 2 and a ribbon-shaped bristle is obtained, which is provided, for example, only on its narrow sides with an embossed profile 4 similar to that in FIG. 3.
  • the bristle according to FIG. 9 again has a core 2 and a rubber-elastic layer 3 with a profile 4 obtained by embossing.
  • the bristle 14 according to FIG. 9 is corrugated transversely to the longitudinal extent.

Landscapes

  • Brushes (AREA)
  • Artificial Filaments (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Pens And Brushes (AREA)
  • Cosmetics (AREA)

Abstract

L'invention concerne un poil de brosserie (1) comprenant une partie centrale (2) en matière plastique relativement rigide, élastique en flexion, et au moins une couche constituée d'une matière plastique présentant l'élasticité du caoutchouc, profilée par estampage contre la partie centrale. Une couche supplémentaire, de type film, égalisant le profilage, peut être appliquée sur la couche profilée. Ce type de poil de brosserie peut être produit par coextrusion de la partie centrale et de la couche présentant l'élasticité du caoutchouc, puis par estampage de cette dernière contre la partie centrale. La couche de type film est appliquée après l'estampage.
EP99923408A 1998-04-24 1999-04-09 Poil de brosserie, son procede de production et appareil comportant un tel poil de brosserie Expired - Lifetime EP1073353B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19818345A DE19818345A1 (de) 1998-04-24 1998-04-24 Borste, Verfahren zu ihrer Herstellung und Gerät mit einer solchen Borste
DE19818345 1998-04-24
PCT/EP1999/002403 WO1999055195A1 (fr) 1998-04-24 1999-04-09 Poil de brosserie, son procede de production et appareil comportant un tel poil de brosserie

Publications (2)

Publication Number Publication Date
EP1073353A1 true EP1073353A1 (fr) 2001-02-07
EP1073353B1 EP1073353B1 (fr) 2002-06-12

Family

ID=7865672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99923408A Expired - Lifetime EP1073353B1 (fr) 1998-04-24 1999-04-09 Poil de brosserie, son procede de production et appareil comportant un tel poil de brosserie

Country Status (15)

Country Link
US (1) US6391445B1 (fr)
EP (1) EP1073353B1 (fr)
JP (1) JP4311878B2 (fr)
KR (1) KR100602584B1 (fr)
CN (1) CN1115121C (fr)
AR (1) AR015016A1 (fr)
AU (1) AU746808B2 (fr)
BR (1) BR9909857A (fr)
CA (1) CA2328770A1 (fr)
DE (2) DE19818345A1 (fr)
EG (1) EG22279A (fr)
ES (1) ES2178438T3 (fr)
PL (1) PL193087B1 (fr)
RU (1) RU2205581C2 (fr)
WO (1) WO1999055195A1 (fr)

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DE10017167A1 (de) * 2000-04-07 2001-10-11 Pedex & Co Gmbh Verfahren und Vorrichtung zur Herstellung von Filamenten aus Kunststoff, insbesondere Kunststoffborsten, und danach hergestellte Borste
DE10017306A1 (de) 2000-04-09 2001-10-11 Pedex & Co Gmbh Verfahren zur Herstellung von Borsten zum Applizieren von Medien
DE10033256A1 (de) * 2000-07-10 2002-01-24 Coronet Werke Gmbh Verfahren und Vorrichtung zur Herstellung von Borstenwaren sowie Borstenware
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JP2015518771A (ja) * 2012-06-05 2015-07-06 エルジー・ハウスホールド・アンド・ヘルスケア・エルティーディー 二重構造のチップを有する歯ブラシの毛およびそれを含む歯ブラシ
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US9986820B2 (en) * 2014-06-11 2018-06-05 The Procter & Gamble Company Filament having unique tip and surface characteristics
US10610007B2 (en) 2014-07-31 2020-04-07 Geka Gmbh Wire-core applicator having multi-material bristles
FR3028153B1 (fr) * 2014-11-06 2018-05-04 L'oreal Applicateur cosmetique comportant des fibres.
WO2017004791A1 (fr) 2015-07-07 2017-01-12 Colgate-Palmolive Company Instrument de soin bucco-dentaire et soie à mono-filament à utiliser avec celui-ci
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CN106235604B (zh) * 2016-08-31 2018-03-23 王文康 一种牙刷及其制造工艺
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Also Published As

Publication number Publication date
KR20010043001A (ko) 2001-05-25
KR100602584B1 (ko) 2006-07-19
WO1999055195A1 (fr) 1999-11-04
DE59901741D1 (de) 2002-07-18
CN1115121C (zh) 2003-07-23
JP2002512824A (ja) 2002-05-08
PL193087B1 (pl) 2007-01-31
EG22279A (en) 2002-12-31
EP1073353B1 (fr) 2002-06-12
AU746808B2 (en) 2002-05-02
AR015016A1 (es) 2001-04-11
CA2328770A1 (fr) 1999-11-04
RU2205581C2 (ru) 2003-06-10
US6391445B1 (en) 2002-05-21
PL343632A1 (en) 2001-08-27
JP4311878B2 (ja) 2009-08-12
CN1298284A (zh) 2001-06-06
DE19818345A1 (de) 1999-10-28
BR9909857A (pt) 2000-12-19
ES2178438T3 (es) 2002-12-16
AU4030299A (en) 1999-11-16

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