WO2000001276A1 - Procede de production d'une touffe de poils, notamment pour une brosse a dents - Google Patents

Procede de production d'une touffe de poils, notamment pour une brosse a dents Download PDF

Info

Publication number
WO2000001276A1
WO2000001276A1 PCT/EP1999/004432 EP9904432W WO0001276A1 WO 2000001276 A1 WO2000001276 A1 WO 2000001276A1 EP 9904432 W EP9904432 W EP 9904432W WO 0001276 A1 WO0001276 A1 WO 0001276A1
Authority
WO
WIPO (PCT)
Prior art keywords
filaments
bristle
split
toothbrush
tufts
Prior art date
Application number
PCT/EP1999/004432
Other languages
German (de)
English (en)
Inventor
Georges Driesen
Armin Schwarz-Hartmann
Original Assignee
Braun 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 Braun Gmbh filed Critical Braun Gmbh
Priority to AU47780/99A priority Critical patent/AU4778099A/en
Publication of WO2000001276A1 publication Critical patent/WO2000001276A1/fr

Links

Classifications

    • 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
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • 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
    • A46D1/0246—Hollow bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0284—Bristles having rounded ends
    • 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
    • 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

Definitions

  • the invention relates to a method for producing a bristle tuft, in particular a toothbrush, the bristle tuft being composed of a multiplicity of filaments, and the free ends of the filaments of the bristle tuft being split in their longitudinal direction.
  • the invention also relates to a bristle tuft, in particular a toothbrush, the bristle tuft being composed of a large number of filaments, and the free ends of the filaments of the bristle tuft being split in their longitudinal direction.
  • Such a method and such a bristle bush egg are known from German laid-open specification DE 30 35 860 A1.
  • the tufts of bristles are produced, for example, from hollow monofilaments which are cut to a desired bristle length and assembled into bundles.
  • the free ends of the individual bristles are then subjected to sharpening and splitting according to known procedures. Splitting in the longitudinal direction or so-called flagging of filaments is described, for example, in US Pat. No. 2,911,761.
  • Splitting the filaments of the tufts of bristles can result in sharp tips and possibly edges on the split parts of the individual filaments. This is when using the bristle tuft e.g. irrelevant for a paintbrush. However, if the bristle tuft is to be used with a toothbrush, the tips in particular can lead to injuries to the gums of the user. For this reason, split filaments have not previously been used in toothbrushes.
  • the object of the invention is to provide a method with which a tuft of bristles provided with split filaments can be produced, which can also be used with a toothbrush without any problems.
  • the effective cleaning surface of the toothbrush and thus its cleaning effect is significantly increased.
  • the split filaments of the bristle tuft achieve a significantly increased cleaning effect of the toothbrush in interdental spaces.
  • a further improvement in the cleaning effect of the tufts of bristles results from the lower stiffness of the individual filaments due to the splitting.
  • the free ends of the filaments of the tufts of bristles are also rounded before splitting. This measure surprisingly results in a very good and uniform rounding of the free ends of the filaments. This measure also prevents filaments which may not have been split after the splitting from being carried out, possibly not being rounded and then possibly causing injury to the gums.
  • the filaments are cut to a bristle length in a range from approximately 6 mm to approximately 9 mm. It is also advantageous if the free ends of the filaments are split to a split length in a range from about 10% to about 25% of their bristle length.
  • the proportion of uncleaved bristles in a bundle of bristles is at most 25% of the number of bristles in the bundle.
  • the filaments are split and rounded only in the area of an inner field of a toothbrush having a plurality of bristle tufts.
  • the split filaments Due to this arrangement of the split filaments only in the inner field of the toothbrush it is achieved that these split filaments do not come into contact with the gums of the user. This further reduces the possibility of injury to the gums due to tips and / or edges. At the same time, the arrangement of the split filaments in the inner field of the toothbrush ensures that the filaments of the inner field penetrating into the interdental spaces have the increased cleaning effect that is present due to the splitting.
  • the filaments in the inner field are shorter than the other filaments, in particular about 0.5 mm shorter. It is thereby achieved that the filaments not arranged in the inner field of the toothbrush can be stuffed and rounded in the inner field without further ado, in particular without further adaptation to the filaments. This rounding ensures that the filaments of the toothbrush, which are not arranged in the inner field, have no tips or edges and therefore do not pose any risk of injury to the user.
  • the filaments have a cross section that is trilocular or tetralocular or the like, and / or if the filaments have a diameter that is in a range between approximately 5 mil and approximately 8 mil.
  • FIG. 1a and 1b show a schematic longitudinal section and a schematic cross section through a toothbrush with bristle tufts according to the invention
  • FIGS. 2a to 2e show schematic cross sections of filaments for a tuft of bristles according to the invention.
  • FIGS. 1a and 1b show a toothbrush 1 which has a bristle holder 2 and a plurality of bristle tufts 3.
  • Each of the bristle tufts 3 is composed of a large number of individual filaments 4.
  • the bristle tufts 3 and thus the filaments 4 are held in the bristle carrier 2.
  • the bristle carrier 2 is disc-shaped and is intended for use with an electric toothbrush.
  • the toothbrush 1 has an approximately circular inner field 5, which consists of a number of bristle tufts 3, and an outer ring 6, which is composed of the remaining bristle tufts 3 arranged around inner field 5.
  • the bristle length of the filaments 4 of the bristle tufts 3 is in a range from approximately 6 mm to approximately 9 mm.
  • the bristle length of the filaments 4 of the bristle tufts 3 arranged in the inner field 5 is approximately 0.5 mm shorter than the bristle length of the filaments 4 of the bristle tufts 3 arranged in the outer ring 6.
  • the filaments 4 of the bristle tufts 3 can have one of the cross sections shown in FIGS. 2a to 2e.
  • the cross section can be trilocular according to FIG. 2a, or tetralocular according to FIG. 2b, or X-shaped according to FIG. 2c, or honeycomb-shaped according to FIG. 2d, or quadrilobal according to FIG. 2e or the like.
  • the filaments 4 of the bristle tufts 3 have a diameter which is in a range from approximately 5 mil to approximately 8 mil.
  • the filaments 4 of the bristle tufts 3 arranged within the inner field 5 are split in their longitudinal direction, starting from their free ends.
  • the splitting length over which the splitting extends is in a range from about 10% to about 25% of the bristle length of the filaments 4.
  • the number of uncleaved bristles in a bundle is at most about 25% of the number of bristles in the bundle.
  • the filaments 4 are rounded at their free ends. This applies to the free ends of the filaments 4 of the bristle tufts 3 of the outer ring 6, as well as the free ends of the split parts of the individual filaments 4 of the bristle tufts 3 of the inner field 5.
  • the bristles can also be split in the outer ring or outer field.
  • the bristle type and bristle length in the inner field and outer ring are the same.
  • further combinations of partial brush areas with unsplit and with split filaments 4 are possible.
  • the length of the bristle tufts 3 with uncleaved filaments 4 is approximately 0.5 mm higher in comparison to the length of the bristle tufts 3 with split filaments 4.
  • the bristle tufts 3 of the toothbrush 1 are produced as follows.
  • Filaments are produced, which are assembled into bundles and cut to the bristle length.
  • the free ends of the individual filaments are rounded using known methods and devices. Then, using known methods and devices, the free ends of the filaments are split in their longitudinal direction over the splitting length. The free ends of the split parts of the individual filaments are rounded again.
  • the individual bristle tufts 3 in the inner field 5 of the toothbrush 1 are composed of the filaments 4 that are now present.
  • the step of splitting is not carried out on the filaments 4 in the outer ring 6 of the toothbrush 1.
  • the rounding can optionally only be carried out once, either together with the first or the second rounding of the bristle tufts 3 arranged in the inner field 5.
  • Several rounding cuts of the filaments 4 are theoretically possible.
  • the rounding of the filaments is not carried out before the splitting step.
  • the split and the non-split filaments are preferably rounded at the same time or in a single step.
  • the rounding is carried out, for example, by means of rapidly rotating disks or drums, which may be coated with grinding or polishing particles, e.g. B. diamond powder are carried out.
  • the free ends of the filaments are brought into contact with the disk or disks and rounded due to the friction.

Landscapes

  • Brushes (AREA)

Abstract

L'invention concerne un procédé permettant de produire une touffe de poils (3), notamment pour une brosse à dents (1). La touffe de poils (3) comprend une pluralité de filaments (4). Les extrémités libres des filaments (4) de la touffe de poils (3) sont dédoublées dans leur sens longitudinal. Les extrémités libres des filaments (4) dédoublées sont arrondies après dédoublement.
PCT/EP1999/004432 1998-07-02 1999-06-25 Procede de production d'une touffe de poils, notamment pour une brosse a dents WO2000001276A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU47780/99A AU4778099A (en) 1998-07-02 1999-06-25 Method for producing a bristle tuft, notably of a toothbrush

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19829611.8 1998-07-02
DE1998129611 DE19829611A1 (de) 1998-07-02 1998-07-02 Verfahren zur Herstellung eines Borstenbüschels insbesondere einer Zahnbürste

Publications (1)

Publication Number Publication Date
WO2000001276A1 true WO2000001276A1 (fr) 2000-01-13

Family

ID=7872779

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/004432 WO2000001276A1 (fr) 1998-07-02 1999-06-25 Procede de production d'une touffe de poils, notamment pour une brosse a dents

Country Status (3)

Country Link
AU (1) AU4778099A (fr)
DE (1) DE19829611A1 (fr)
WO (1) WO2000001276A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2186434A1 (fr) 2008-11-05 2010-05-19 Braun Gmbh Brosse à dent, brosse et tête de brosse pour une brosse à dent
EP3251547A1 (fr) * 2016-06-03 2017-12-06 The Procter and Gamble Company Filament pour un instrument de soins buccaux et ledit instrument
EP3251548A1 (fr) * 2016-06-03 2017-12-06 The Procter and Gamble Company Filament pour un instrument de soins buccaux et ledit instrument
US10869545B2 (en) 2017-10-10 2020-12-22 The Procter & Gamble Company Filament for an oral care implement and oral care implement
US10869546B2 (en) 2017-10-10 2020-12-22 The Procter & Gamble Company Tuft and head for an oral care implement and oral care implement
US11206916B2 (en) 2016-06-03 2021-12-28 The Procter & Gamble Company Head for an oral care implement and oral care implement
US11219302B2 (en) 2017-10-10 2022-01-11 The Procter & Gamble Company Head for an oral care implement and oral care implement
US11259623B2 (en) 2017-05-31 2022-03-01 The Procter & Gamble Company Head for an oral care implement and oral care implement
US11425991B2 (en) 2014-03-11 2022-08-30 The Procter & Gamble Company Head for an oral care implement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006027756A1 (de) * 2006-06-16 2007-12-20 Braun Gmbh Zahnbürste sowie Zahnbürstenkopf und Zahnputzborste hierfür
EP4282301A1 (fr) * 2022-05-27 2023-11-29 Braun GmbH Section de nettoyage pour dispositif d'hygiène buccale et dispositif d'hygiène buccale

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911761A (en) 1958-10-22 1959-11-10 Du Pont Apparatus for continuously tipping and flagging bristles
US3256545A (en) * 1963-12-16 1966-06-21 Jr John C Lewis Brush fibres and brush construction employing same
DE1253229B (de) * 1965-08-13 1967-11-02 Rhodiaceta Pinsel
FR2125920A5 (fr) * 1971-02-16 1972-09-29 Du Pont
DE3035860A1 (de) 1979-09-24 1981-04-02 E.I. Du Pont De Nemours And Co., Wilmington, Del. Borste
DE9319214U1 (de) * 1993-12-15 1994-11-10 Wap Reinigungssysteme Gmbh & Co, 89287 Bellenberg Bürste für eine Bürstenwaschanlage für Fahrzeuge
EP0663162A1 (fr) * 1994-01-17 1995-07-19 The Procter & Gamble Company Brosse à dents avec poils à section non circulaire
US5786087A (en) * 1995-02-22 1998-07-28 Specialty Filaments, Inc. Honeycomb brush bristles and brush made therefrom

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153342B (de) * 1956-05-18 1963-08-29 Roman Dietsche K G Buerste mit Kunstborsten und Verfahren zum Herstellen solcher Buersten
DE8427132U1 (de) * 1984-09-14 1985-05-23 Blendax-Werke R. Schneider Gmbh & Co, 6500 Mainz Zahnbuerste und vorrichtung zur herstellung derselben
DE29700611U1 (de) * 1997-01-15 1997-03-13 Klaus Sindel RUSI-Kosmetik-Pinsel-Brushes GmbH, 91572 Bechhofen Fasern für Kosmetikbürsten

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911761A (en) 1958-10-22 1959-11-10 Du Pont Apparatus for continuously tipping and flagging bristles
US3256545A (en) * 1963-12-16 1966-06-21 Jr John C Lewis Brush fibres and brush construction employing same
DE1253229B (de) * 1965-08-13 1967-11-02 Rhodiaceta Pinsel
FR2125920A5 (fr) * 1971-02-16 1972-09-29 Du Pont
DE3035860A1 (de) 1979-09-24 1981-04-02 E.I. Du Pont De Nemours And Co., Wilmington, Del. Borste
DE9319214U1 (de) * 1993-12-15 1994-11-10 Wap Reinigungssysteme Gmbh & Co, 89287 Bellenberg Bürste für eine Bürstenwaschanlage für Fahrzeuge
EP0663162A1 (fr) * 1994-01-17 1995-07-19 The Procter & Gamble Company Brosse à dents avec poils à section non circulaire
US5786087A (en) * 1995-02-22 1998-07-28 Specialty Filaments, Inc. Honeycomb brush bristles and brush made therefrom

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2186434A1 (fr) 2008-11-05 2010-05-19 Braun Gmbh Brosse à dent, brosse et tête de brosse pour une brosse à dent
US8789228B2 (en) 2008-11-05 2014-07-29 Braun Gmbh Toothbrush and bristle and brush head for a toothbrush
US11425991B2 (en) 2014-03-11 2022-08-30 The Procter & Gamble Company Head for an oral care implement
EP3251547A1 (fr) * 2016-06-03 2017-12-06 The Procter and Gamble Company Filament pour un instrument de soins buccaux et ledit instrument
EP3251548A1 (fr) * 2016-06-03 2017-12-06 The Procter and Gamble Company Filament pour un instrument de soins buccaux et ledit instrument
WO2017210389A1 (fr) * 2016-06-03 2017-12-07 The Procter & Gamble Company Filament pour instrument d'hygiène buccale, et instrument d'hygiène buccale
CN109310201A (zh) * 2016-06-03 2019-02-05 宝洁公司 用于口腔护理工具的长丝和口腔护理工具
CN109310202A (zh) * 2016-06-03 2019-02-05 宝洁公司 用于口腔护理工具的长丝和口腔护理工具
CN109310202B (zh) * 2016-06-03 2024-04-16 宝洁公司 用于口腔护理工具的长丝和口腔护理工具
CN109310201B (zh) * 2016-06-03 2021-12-24 宝洁公司 用于口腔护理工具的长丝和口腔护理工具
US11206916B2 (en) 2016-06-03 2021-12-28 The Procter & Gamble Company Head for an oral care implement and oral care implement
US11284707B2 (en) 2016-06-03 2022-03-29 The Procter & Gamble Company Filament for an oral care implement and oral care implement
US11259623B2 (en) 2017-05-31 2022-03-01 The Procter & Gamble Company Head for an oral care implement and oral care implement
US11219302B2 (en) 2017-10-10 2022-01-11 The Procter & Gamble Company Head for an oral care implement and oral care implement
US10869546B2 (en) 2017-10-10 2020-12-22 The Procter & Gamble Company Tuft and head for an oral care implement and oral care implement
US10869545B2 (en) 2017-10-10 2020-12-22 The Procter & Gamble Company Filament for an oral care implement and oral care implement

Also Published As

Publication number Publication date
AU4778099A (en) 2000-01-24
DE19829611A1 (de) 2000-01-13

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