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WO1995019120A2 - Brosse a dents a soies de section non circulaire - Google Patents

Brosse a dents a soies de section non circulaire Download PDF

Info

Publication number
WO1995019120A2
WO1995019120A2 PCT/US1995/000584 US9500584W WO9519120A2 WO 1995019120 A2 WO1995019120 A2 WO 1995019120A2 US 9500584 W US9500584 W US 9500584W WO 9519120 A2 WO9519120 A2 WO 9519120A2
Authority
WO
WIPO (PCT)
Prior art keywords
filaments
brush head
toothbrush
section
circular cross
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.)
Ceased
Application number
PCT/US1995/000584
Other languages
English (en)
Other versions
WO1995019120A3 (fr
Inventor
Margaret Anne Graham
Fiona Baillie Harbison
Michael Dunn Manhart
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of WO1995019120A2 publication Critical patent/WO1995019120A2/fr
Publication of WO1995019120A3 publication Critical patent/WO1995019120A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • A46D1/0238—Bristles with non-round cross-section
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles

Definitions

  • the present invention relates to a brush head especially a toothbrush head comprising filaments having a non-circular cross-section.
  • a toothbrush includes a handle and a brush head attached to the handle.
  • the brush head has a longitudinal axis and terminates in a free end remote from the handle; the head has a surface from which the tufts extend generally upwardly.
  • the head and the handle are usually made in one part, whereas in electronic toothbrushes the brush head usually has to be fixed by the consumer to the handle - before use .
  • the brushing head includes brushing filaments. A group of filaments are so-called tufts.
  • Toothbrush filaments to date use of circular cross-section. However, normal brushes using these type of filaments do not remove all plaque from the tooth surfaces. Also a number of toothbrush constructions are known, however, none appears to exhibit a good cleaning efficiency. Often specific brushing techniques on leaflets included in the package are set out by the manufacturer. However normal practice is that a purchaser does not pay attention to the instructions offered by the manufacturer, so less than optimum teeth cleaning is obtained.
  • the filaments according to the invention have a trilocular, tetralocular, trilobular, rectangular or hexagonal cross-section, (see Figure 1: showing diagrams of these filament types)
  • a brush head comprising said filaments wherein a certain group of filaments a so-called tuft have a trilocular cross-section whereas the other tufts have a tetralocular, trilobular, rectangular, hexagonal or circular cross-section or any combination thereof.
  • a toothbrush tufted completely with tetralocular, rectangular, trilocular, trilobular or hexagonal filaments cleans surprisingly and unexpectedly better than a toothbrush comprising standard conventional circular filaments.
  • toothbrushes according to the invention are made by exactly the same process as conventional brushes - only replacing the filament material with either tetralocular, rectangular, trilocular, trilobular or hexagonal filaments. Also the tufting, cutting of filaments flat and the endrounding of filament tips is performed by processes known in the art: for instance a preferred process for enrounding is described in USP 4,979,782.
  • the filaments are preferably placed substantially perpendicular to the brush head and spaced longitudinal extending across the entire width of the brush head whereas the filaments extend generally upwardly from the brush head. In another embodiment the filaments are placed under an angle with respect to the brush head; for instance as described in EP 449,655.
  • the filaments can be used in the toothbrush head in combination with normal circular filaments; the filaments can be used in different bristle configurations whereas the material of the filaments can be of polyester, nylon or any other material suitable for use.
  • the diameter of the cross-section of the filaments may var - within the usual dimensions known by a person skilled in the art.
  • the brush head according to the invention can be part of a conventional toothbrush or part of an electronic and ultrasonic toothbrush as well.
  • the machine operating parameters are based on consumer habits. Additionally, the artificial plaque stain was developed based on the physical characteristics of plaque.
  • the machine uses a model (plastic teeth and gums of average adult dentition/size) of the upper left quadrant of the mouth (pre-molar/molar teeth) to evaluate the efficiency of a particular brush at removing artificial plaque from the model teeth surface.
  • the angle of brushing and the force used to brush the teeth are the average observed for consumers.
  • the brushing motion is controlled by an electric motor.
  • the efficacy of a test toothbrush is measured by calculating the difference between initial artificial plaque area minus the remaining artificial plaque after brushing. This is measured using video imaging and computer software.
  • Novel filament shapes according to the 8 - 10 invention are novel filament shapes according to the 8 - 10 invention.
  • the % of non-removed plaque for all filaments according to the invention is substantial lower than the standard circular cross-section filaments.

Landscapes

  • Brushes (AREA)

Abstract

Brosse à dents comportant un manche et une tête sur laquelle sont montées des soies de section non circulaire. Les soies peuvent présenter une section triloculaire, tétraloculaire, trilobulaire, rectangulaire ou hexagonale. De telles brosses ont une efficacité de nettoyage très nettement supérieure notamment en ce qui concerne l'élimination de la plaque dentaire.
PCT/US1995/000584 1994-01-17 1995-01-13 Brosse a dents a soies de section non circulaire Ceased WO1995019120A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP94300314.5 1994-01-17
EP94300314A EP0663162A1 (fr) 1994-01-17 1994-01-17 Brosse à dents avec poils à section non circulaire

Publications (2)

Publication Number Publication Date
WO1995019120A2 true WO1995019120A2 (fr) 1995-07-20
WO1995019120A3 WO1995019120A3 (fr) 1995-09-21

Family

ID=8217532

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/000584 Ceased WO1995019120A2 (fr) 1994-01-17 1995-01-13 Brosse a dents a soies de section non circulaire

Country Status (2)

Country Link
EP (1) EP0663162A1 (fr)
WO (1) WO1995019120A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023006359A1 (fr) 2021-07-26 2023-02-02 Unilever Ip Holdings B.V. Filaments pour instruments de soins buccodentaires

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5770307A (en) * 1995-10-18 1998-06-23 E. I. Du Pont De Nemours And Company Coextruded monofilaments
DE69725887T2 (de) * 1996-07-25 2004-09-09 Whitehill Oral Technologies Inc. Zahnbürste mit verbesserter reinigungs- und abtrieb- wirksamkeit
NL1003771C2 (nl) * 1996-08-09 1998-02-12 Mirjam De Wilde Interdentale tandenborstel.
US5836769A (en) * 1996-12-03 1998-11-17 Gillette Canada Inc. Toothbrush, method of making a toothbrush, and method of brushing teeth
US5849410A (en) * 1996-12-12 1998-12-15 E. I. Du Pont De Nemours And Company Coextruded monofilaments
JP4050356B2 (ja) * 1997-05-23 2008-02-20 ジョンソン・エンド・ジョンソン株式会社 歯ブラシ
GB2327867A (en) 1997-07-31 1999-02-10 Stafford Miller Ltd Toothbrush:bristle tufts
DE19829611A1 (de) * 1998-07-02 2000-01-13 Braun Gmbh Verfahren zur Herstellung eines Borstenbüschels insbesondere einer Zahnbürste
US8631534B2 (en) 2006-06-08 2014-01-21 Dr. Fresh, Llc Toothbrush
WO2012096701A1 (fr) 2011-01-12 2012-07-19 Colgate-Palmolive Company Accessoire d'hygiène buccodentaire
AU2011354716B2 (en) * 2011-01-12 2015-01-22 Colgate-Palmolive Company Oral care implement
ES2973071T3 (es) * 2014-03-11 2024-06-18 Procter & Gamble Cabezal para un utensilio de cuidado bucal
US10098447B2 (en) 2014-07-15 2018-10-16 The Procter & Gamble Company Oral-care implement having color-communicative element
ES2646278T3 (es) * 2015-02-19 2017-12-13 The Procter & Gamble Company Cabezal para un utensilio de cuidado bucal y utensilio de cuidado bucal
CA2995681A1 (fr) 2015-09-08 2017-03-16 Colgate-Palmolive Company Instrument d'hygiene bucco-dentaire
ES2975359T3 (es) 2016-06-03 2024-07-04 Procter & Gamble Filamento para un utensilio de cuidado bucal y utensilio de cuidado bucal
EP3251546B1 (fr) 2016-06-03 2021-03-10 The Procter and Gamble Company Tête pour un instrument de soins buccaux et instrument pour soins buccaux
US10251470B1 (en) 2017-10-10 2019-04-09 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

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2317485A (en) * 1940-04-27 1943-04-27 Pepsodent Co Brush
US2508799A (en) * 1944-12-28 1950-05-23 Pittsburgh Plate Glass Co Paintbrush and synthetic bristles for the same
US2876477A (en) * 1955-12-08 1959-03-10 George G Stewart Brush
US3233944A (en) * 1962-08-15 1966-02-08 Shaw Gilbert Method for production of brush construction
US3238553A (en) * 1964-04-09 1966-03-08 E B & A C Whiting Company Filamentary articles
SE310646B (fr) * 1964-10-30 1969-05-12 A Poppelman
US3239865A (en) * 1965-03-24 1966-03-15 E B & A C Whiting Company Brush containing polypropylene bristles
FR1453512A (fr) * 1965-08-13 1966-06-03 Rhodiaceta Nouveau pinceau
US3613143A (en) * 1970-11-12 1971-10-19 Indiana University Foundation Brush with abrasive-impregnated bristles
US4279053A (en) * 1979-09-24 1981-07-21 E. I. Du Pont De Nemours And Company Tri- or tetra-locular paint brush bristles
JPS6017109A (ja) * 1983-07-04 1985-01-29 Kanegafuchi Chem Ind Co Ltd 刷毛用繊維
NL8500178A (nl) * 1985-01-23 1986-08-18 Jasper Van Den Hoek Tandenborstel.
US4852202A (en) * 1988-07-21 1989-08-01 Ledwitz Kenenth W Toothbrush with angled bristles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023006359A1 (fr) 2021-07-26 2023-02-02 Unilever Ip Holdings B.V. Filaments pour instruments de soins buccodentaires

Also Published As

Publication number Publication date
WO1995019120A3 (fr) 1995-09-21
EP0663162A1 (fr) 1995-07-19

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