EP1073353B1 - Borste, verfahren zu ihrer herstellung und gerät mit einer solchen borste - Google Patents

Borste, verfahren zu ihrer herstellung und gerät mit einer solchen borste Download PDF

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Publication number
EP1073353B1
EP1073353B1 EP99923408A EP99923408A EP1073353B1 EP 1073353 B1 EP1073353 B1 EP 1073353B1 EP 99923408 A EP99923408 A EP 99923408A EP 99923408 A EP99923408 A EP 99923408A EP 1073353 B1 EP1073353 B1 EP 1073353B1
Authority
EP
European Patent Office
Prior art keywords
bristle
core
rubber
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.)
Expired - Lifetime
Application number
EP99923408A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1073353A1 (de
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/de
Application granted granted Critical
Publication of EP1073353B1 publication Critical patent/EP1073353B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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, flexurally elastic Plastic and at least one profiled layer a rubber-elastic plastic. Furthermore, the Invention a method for producing such bristles and devices equipped with such bristles.
  • bristles Regardless of the particular use of a brush some basic requirements are placed on bristles. These include in particular the bending elasticity, kink resistance and wear resistance. More and often very different requirements result from the use the brush. For example, brushes for oral and personal care should be soft enough to Avoid injuries while being abrasive technical brushes have hard and rough bristles should. Other technical brushes, such as car wash brushes, on the other hand, in turn, must be smooth and smooth. This also applies to polishing brushes. Brushes or paint brushes used for Applying media to serve must be relatively closely related Have bristles for storing the medium while in other applications, stand-alone bristles or Bristle bundles are desired.
  • bristles on the surface of the to be treated or the object to be processed depends significantly of their own surface quality and of that Bristle material.
  • bristles are made extruded plastic monofilaments.
  • the plastic can be essentially only the Bending and wear resistance, but only in very little Scope the surface quality and effectiveness affect the surface once one of simple Longitudinal profiles. It therefore has the status of There is no lack of technology in trials, the surface quality or the effectiveness of the surface of To change bristles by additional measures to the to better meet the respective purpose.
  • Bristles are also known (DE 195 33 815 A1) consist of a core and ribs arranged on it, obtained a spiral profile by twisting becomes.
  • Another known bristle (US 5,137,039 A1) consists of a comparatively hard core and a softer coat that profiles along coat lines, i.e. is provided with longitudinal ribs. This document says nothing about how the bristle and the profiling getting produced. It also slides between the ribs absorbed medium quickly in the longitudinal direction of the bristle out.
  • the invention is based on this prior art the task of creating a bristle that while maintaining the necessary strength properties with a soft surface nevertheless a good cleaning effect and media receptivity.
  • the invention is based on the surprising finding that a rubber-elastic plastic, e.g. a thermoplastic Elastomer, even with a very thin thickness with bristles and toothbrushes is in the range of a few tenths of a millimeter Embossing can be profiled without a provision of the rubber-elastic plastic is to be determined, whereby the relatively hard core plays a significant role, against which the embossing forces are applied. Leave it fine to rough structures in any Realize design. You choose shallow tread depths especially for bristles for mouth and body care, larger profile depths, however, with cleaning brushes or Order brushes to get dirt in the first case, in the second Case record order media.
  • a rubber-elastic plastic e.g. a thermoplastic Elastomer
  • the rubber-elastic layer can be core-shaped or only partially surrounded and can by Embossed profile along the entire length the bristle or only provided on part of the same his.
  • the core of the bristle is resistant to bending and kinking determining plastic and the rubber-elastic layer with their profiling from a surface effect the bristle on the object and determining the wear resistance Plastic.
  • the core consists of a Plastic with a Shore hardness D> 45 and the rubber elastic Layer of a plastic with a Shore hardness D ⁇ 35th
  • the Shore hardness of the plastic for the core at D> 65 and the the rubber-elastic layer at 20 ⁇ D ⁇ 35 are, for example for the core PE (polyethylene), PP (polypropylene) or PA (polyamide) and for the rubber elastic Layer of thermoplastic elastomers.
  • the profiling of the rubber-elastic layer can distributed, locally delimited depressions be educated. Instead, the profiling also in the direction of extension of the bristle, for example run along surface lines or helically. Finally, the profiling can also be predominantly transverse be oriented to the direction of extension of the bristle.
  • the profiled rubber-elastic layer itself Profile conforming, film-like layer of a soft Plastic applied. This can affect the profile a certain smoothing effect can be achieved without taking away the surface effect from the profiling.
  • the core can be formed from one or more monofilaments his.
  • the first version is recommended for Tooth and body brushes, the latter version at technical brushes, especially for car wash brushes.
  • the bristles have to be limp be on the one hand the contour of the to be cleaned Optimally lay out area, on the other hand the surface easy to clean. These bristles wear out a lot quickly from the free end.
  • This means according to the invention trained bristle that the rubber elastic Layer is removed first at the bristle ends. at the inventive training with several core monofilaments these are exposed in the form of fibers, which then compared to a single core monofilament of larger diameter still ensure gentle treatment.
  • Bristles usually have a circular cross section.
  • any other bristle cross-section can be realized, by the core being different 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 nonetheless be circular Have cross-section so that they are different Has thickness and in the thicker areas for example can be shaped more deeply. Instead, it can also a cross section following the cross section of the core have so that regardless of the location of the embossing equal depth profiles can be generated, whereby also here the core again acts as an abutment.
  • the entire bristle can be made of core and more elastic Layer transverse to the direction of extension of the Bristle be wavy.
  • the core is formed by a surface structure that acts as an adhesion promoter preserved at the core.
  • the invention proposes a method in which the core and the rubber-elastic layer coextruded as a strand and the rubber-elastic layer while running Is profiled by embossing against the core.
  • an endless bristle material becomes obtained from which the bristles immediately after embossing can be cut to length on request. Instead, can the bristle material can also be spooled and only on the occasion the brush manufacture the bristle from the unwound The strand can be cut to length as required.
  • the strand can be coextruded, the strand wound and the rubber-elastic layer when unwinding the strand Embossing is profiled against the core.
  • This procedure can emboss at the manufacturer of the bristle material or only at the brush manufacturer.
  • This Procedure can also be recommended if the rubber elastic Layer of a slowly cross-linking elastomer exists and the embossing process only after the completion of Crosslinking reaction should be carried out.
  • the rubber-elastic layer preferably by means of one another and against the core effective stamping tools profiled, the stamping tools can create different profiles. It can only one-sided profiling can be provided, then the embossing tool with an unprofiled Counter tool works together.
  • a soft plastic film-like by extrusion, Dip, spray or shrink-wrap a film be applied, for example, to the profile smooth.
  • the Core and the rubber-elastic layer coextruded as a strand then cut the bristle from the strand and then the rubber-elastic layer by embossing profiled against the core. With this procedure the film-like layer before or after cutting to length Dip, spray or shrink-applied a film become.
  • the bristle designed according to the invention is for devices of various types can be used.
  • Such bristle can be used directly as an interdental cleaner can be used, either in the form of a Sticks or similar to a floss.
  • a brush with a plurality of Bristles designed according to the invention, wherein the bristles can be provided in separate arrangements can.
  • a brush can have bristles differently profiled, rubber-elastic layers exhibit.
  • a core 2 made of a flexible and kink-resistant plastic, e.g. PA, PP or PE, and a shell 2 surrounding the core rubber-elastic layer 3, for example from a thermoplastic elastomer.
  • a profile 4 in the form of locally delimited, indentations 5 distributed on the circumference. The embossing takes place against the hard core 2.
  • bristle 1 is the bristle 1 only over part of its length with that shown in Fig. 1 Profile coined while remaining along the length 6, for example the attachment-side end of the Includes bristle, is not profiled. Otherwise there is they in turn consist of a core 2 made of a hard plastic, the rubber-elastic layer 3 with the embossed Wells and one covering the profiling film-like layer 7, which conforms to the profiling, but with a certain smoothing effect brings. 3 there is Bristle, in turn, consists of a core 2 and a region only applied rubber elastic layer 3. This namely runs on the core 2 in the form of longitudinal ribs, which are profiled by cross-stamping, so that depressions 8 and wart-like elevations 9 arise.
  • the core has a circular cross section
  • Fig. 5 is a bristle
  • the core 2 a cross-shaped Cross section 10
  • the rubber elastic Layer 3 has a circular cross-section. So it is in the area of the ends of the bars of the cross section 10 thinnest. This makes sharp abutments formed against which the profile - as with the arrows 11 indicated - can be shaped particularly well.
  • the bristle has 1 in turn a core 2 with a circular cross-section.
  • the him enveloping rubber-elastic layer 3 is with a wave profile 12 coined.
  • FIG. 7 shows an embodiment modified compared to FIG. 1, by the core 2 consisting of four monofilaments 13, that can be in parallel or twisted.
  • the rubber-elastic layer 3 in turn surrounds the core 2 a circular cross section and points to it Coat the embossed profile.
  • the core 2 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 band-shaped bristle is obtained, for example, only similar on its narrow sides with an embossed profile 4 which is provided in Fig. 3.
  • the bristle 14 is in accordance with the previously described bristles Fig. 9 corrugated transversely to the longitudinal extent.

Landscapes

  • Brushes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Pens And Brushes (AREA)
  • Laminated Bodies (AREA)
  • Cosmetics (AREA)
  • Artificial Filaments (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP99923408A 1998-04-24 1999-04-09 Borste, verfahren zu ihrer herstellung und gerät mit einer solchen borste Expired - Lifetime EP1073353B1 (de)

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 (de) 1998-04-24 1999-04-09 Borste, verfahren zu ihrer herstellung und gerät mit einer solchen borste

Publications (2)

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

Family

ID=7865672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99923408A Expired - Lifetime EP1073353B1 (de) 1998-04-24 1999-04-09 Borste, verfahren zu ihrer herstellung und gerät mit einer solchen borste

Country Status (15)

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

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WO2016016440A1 (de) 2014-07-31 2016-02-04 Geka Gmbh Drahtkernapplikator mit mehrmaterialborsten
FR3028153B1 (fr) * 2014-11-06 2018-05-04 L'oreal Applicateur cosmetique comportant des fibres.
CN107835649B (zh) 2015-07-07 2021-03-23 高露洁-棕榄公司 口腔护理器具和用于口腔护理器具的单丝刷毛
CN106073145A (zh) * 2016-06-27 2016-11-09 徐涵 一种新型牙刷刷丝及其制备工艺
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
CA2328770A1 (en) 1999-11-04
ES2178438T3 (es) 2002-12-16
JP4311878B2 (ja) 2009-08-12
EG22279A (en) 2002-12-31
CN1115121C (zh) 2003-07-23
PL343632A1 (en) 2001-08-27
KR20010043001A (ko) 2001-05-25
JP2002512824A (ja) 2002-05-08
AU746808B2 (en) 2002-05-02
BR9909857A (pt) 2000-12-19
WO1999055195A1 (de) 1999-11-04
DE19818345A1 (de) 1999-10-28
RU2205581C2 (ru) 2003-06-10
DE59901741D1 (de) 2002-07-18
KR100602584B1 (ko) 2006-07-19
CN1298284A (zh) 2001-06-06
EP1073353A1 (de) 2001-02-07
AR015016A1 (es) 2001-04-11
AU4030299A (en) 1999-11-16
US6391445B1 (en) 2002-05-21
PL193087B1 (pl) 2007-01-31

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