EP0874925A1 - Procede de fabrication de soies spiralees - Google Patents

Procede de fabrication de soies spiralees

Info

Publication number
EP0874925A1
EP0874925A1 EP96931013A EP96931013A EP0874925A1 EP 0874925 A1 EP0874925 A1 EP 0874925A1 EP 96931013 A EP96931013 A EP 96931013A EP 96931013 A EP96931013 A EP 96931013A EP 0874925 A1 EP0874925 A1 EP 0874925A1
Authority
EP
European Patent Office
Prior art keywords
section
monofilament
cross
bristles
extruded
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
EP96931013A
Other languages
German (de)
English (en)
Other versions
EP0874925B1 (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.)
Coronet Werke GmbH
Original Assignee
Coronet Werke 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7771987&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0874925(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Coronet Werke GmbH filed Critical Coronet Werke GmbH
Publication of EP0874925A1 publication Critical patent/EP0874925A1/fr
Application granted granted Critical
Publication of EP0874925B1 publication Critical patent/EP0874925B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers

Definitions

  • the invention relates to a method for producing spiral bristles from plastic by extruding monofilaments.
  • Bristles for brush goods of any kind develop their brushing effect first and foremost through the free ends of the bristles, which tear open the soiled surface and remove the dirt by scratching and scraping. When the pressure is increased, the bristles fold over and become effective with their outer surface. They slide more smoothly and pushingly over the surface with a gentler effect.
  • profiled bristles are also known, in which the profile edges have a more abrasive effect when the bristle is folded over.
  • bristles for car wash brushes with a spiral profile are known (DE-U-93 19 214, DE-A-1 140 901) with a very large pitch of the spiral. This, in turn, is intended to reduce the strong scraping effect of profiled bristles by locally engaging only part of the helix.
  • Such a bristle with a steep spiral should pass through Twisting a monofilament with an essentially star-shaped cross section can be obtained. How this happens in detail and in particular should lead to a stable bristle with good straightening ability remains open with this prior art.
  • the invention is based on the object of proposing a method by means of which spiral bristles of the same and predeterminable quality as conventional bristles can be produced inexpensively.
  • this task is fertilized by extruding a monofilament with a cross-section deviating from the circular shape and pre-stretching it while reducing it, then stretching it further, then twisting it over at least part of its length to form a spiral bristle material and stabilizing it after the twisting by thermal shrinking .
  • the pre-stretching takes place immediately when the monofilament is drawn off on the extruder, while the further stretching after cooling, e.g. after passing the monofilament through a water bath.
  • a profiled bristle with strength properties is obtained, as are known from conventional, non-profiled bristles.
  • a spiral-shaped or helical bristle material is obtained from the monofilament due to its cross-section deviating from the circular shape.
  • the resulting spiral is obtained from the profile of the monofilament projecting beyond the circular shape and can either extend over the entire length of the bristle or can be formed only over part of its length.
  • Stabilization after twisting can be carried out in a known manner by exposure to an elevated temperature or by
  • the coiled, spiral bristle material is stored at room temperature or at a higher temperature in order to fix the bristle material in the desired shape.
  • the monofilament is preferably pre-stabilized by thermal shrinkage after further stretching and before twisting. During this pre-stabilization, the monofilament is subjected to heat and then cooled, so that the monofilament shrinks. In connection with the further stabilization after twisting ensures that the twist of the monofilament is permanently fixed.
  • the monofilament produced by extrusion can have an oval or polygonal cross section.
  • a bristle material with two coils running over the surface is produced.
  • the number of coils corresponds to the number of corners.
  • a rectangular, in particular square, cross section is preferably selected, so that four coils are formed on the jacket.
  • a monofilament with a core and at least one axially parallel rib can also be extruded and twisted.
  • a bristle material with helices is created, the height of which can be selected in accordance with the height of the ribs, so that comparatively deep channels are formed on the bristle.
  • the at least one rib or at least one edge of the polygonal cross-section differs in color from the core of the monofilament by extruding different-colored plastics, for example a white or transparent bristle with a helix in one in the core Signal color. If pigments are used for coloring, the helix has a harder and at the same time abrasive surface.
  • the core and the at least one rib or at least one edge of the polygonal cross section are preferably made of different plastics.
  • the resulting spiral can thus be adapted to certain operating conditions, in particular its hardness.
  • ribs made of relatively soft material dirt can be gently removed from carpets, for example.
  • a relatively hard material for the rib or ribs enables efficient cleaning of the teeth, for example in dental care.
  • An intensive brushing effect, for example for removing rust, can be achieved with ribs made of abrasive material.
  • the user can be given an indication of the brush properties of the respective brush by a different color design of the core and the ribs.
  • the bristles must have a predetermined stiffness.
  • an adaptation of the rigidity can be achieved if the monofilament is extruded from a core, a jacket surrounding it, from different plastics. Due to the choice of material, the core, for example, can have typical properties of a bristle with regard to its bending capacity, while the jacket has the properties that are most suitable for the intended purpose.
  • the ribs running on the jacket can either consist of its material or a different material.
  • Another solution of the invention is based on the extrusion of monofilaments with, for example, a circular cross section.
  • Such a process is characterized by the fact that at least two monofilaments are pre-stretched and subsequently stretched further, while reducing their cross-sections, any bristle material are twisted together and stabilized after the twisting by thermal shrinking.
  • the spiral-profiled lateral surface of the bristle is obtained by at least two monofilaments of any cross-section type twisted together. They obtain their stability from the type of manufacture customary for bristles.
  • the monofilaments can be stabilized by thermal shrinkage after further stretching and before twisting.
  • This stabilization can also be carried out by the action of elevated temperature or by storing the wound-up bristle material at room temperature or a temperature which is higher than that.
  • the brushing effect depends, among other things, on the degree of twisting in relation to the effective length of a bristle or of the bristle material, i.e. on the pitch of the helix formed as a result of the twisting. It has been shown that the pitch of the helix should not be greater than twice the useful length of the bristle, so that a helix rotating around 180 ° is present along the useful length. However, the helix preferably has a smaller pitch, which can be up to the size of the diameter of the bristle material. For toothbrushes, a slope has proven to be favorable in which there are at least two, preferably three to five turns per cm of bristle length.
  • the monofilament or the monofilaments consist of an elastic plastic.
  • the bristles made from the bristle material can be stretched in the longitudinal direction, which in turn reduces their diameter brings, so that they can be inserted into a toothbrush when used in toothbrushes or as an interdental cleaner, but cannot get stuck in it.
  • the bristle stretches when pulled out and can also twist open.
  • the bristle material produced according to the invention can be used with a variety of brushes with particular advantages.
  • the deepened spaces present between the spirals running on the surface are particularly suitable for picking up and storing the dirt loosened during brushing and only releasing it at the end of the brush section.
  • This advantageous effect is effective, for example, with carpet brushes, vacuum cleaner brushes, polishing brushes, etc.
  • these spaces formed between the coils can serve to hold media that are to be applied. This is the case, for example, with hair brushes, painter brushes, cosmetic brushes, etc.
  • the different cleaning effects of the bristle ends and the flanks of the coils can advantageously be combined with one another. This applies, for example, to toothbrushes, massage brushes, brooms, sweeping rollers, rust removal brushes, etc.
  • individual or bundled spiral bristles can be used in a particularly advantageous manner as interdental brushes, which are much better due to reciprocation in the interdental spaces Develop cleaning effect, since constantly changing cross-sections come into effect. Even if such an interdenal cleaner jams in tight gaps, it will not tear off, but can be pulled out easily by being twisted open. Finally, very gentle care treatment can also be achieved if the spiral cross section is rounded accordingly.
  • An interdental cleaner has further advantages if it is twisted only in a partial area of its length.
  • the untwisted portion has smaller cross-sectional dimensions and is therefore easier to insert into an interdental space. This introduction can be made even easier if the undrilled portion has at least one section, for example a cross section flattened by pressing.
  • spiral bristles can be combined with bristles of a different configuration and processed together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Brushes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

L'invention concerne un procédé de fabrication de soies spiralées par extrudage de monofils. Pour une fabrication économique de soies spiralées dont la qualité prédéterminable est identique à celle des soies traditionnelles, l'invention propose d'extruder un monofil de section non circulaire, de le pré-étirer pour réduire sa section à sa sortie de l'extrudeuse, puis de poursuivre son étirage. Ensuite, on le torsade sur au moins une partie de sa longueur pour former un matériau de soie spiralée et enfin on le stabilise par retrait. Ce procédé permet d'extruder un monofil de section ovale ou polygonale ou bien comportant une âme et au moins une nervure parallèle à l'axe. Selon un autre procédé, on peut envisager de pré-étirer au moins deux monofils pour réduire leur section à leur sortie de l'extrudeuse, de poursuive leur étirage, puis de les torsader ensemble pour former un matériau de soies spiralées et de les stabiliser par retrait thermique.
EP96931013A 1995-09-13 1996-09-04 Procede de fabrication de soies spiralees Expired - Lifetime EP0874925B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19533816 1995-09-13
DE19533816A DE19533816A1 (de) 1995-09-13 1995-09-13 Verfahren zur Herstellung spiraliger Borsten
PCT/EP1996/003874 WO1997010374A1 (fr) 1995-09-13 1996-09-04 Procede de fabrication de soies spiralees

Publications (2)

Publication Number Publication Date
EP0874925A1 true EP0874925A1 (fr) 1998-11-04
EP0874925B1 EP0874925B1 (fr) 1999-12-08

Family

ID=7771987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96931013A Expired - Lifetime EP0874925B1 (fr) 1995-09-13 1996-09-04 Procede de fabrication de soies spiralees

Country Status (29)

Country Link
US (1) US5985192A (fr)
EP (1) EP0874925B1 (fr)
JP (1) JP3792721B2 (fr)
KR (1) KR100666766B1 (fr)
CN (1) CN1077154C (fr)
AR (1) AR003562A1 (fr)
AT (1) ATE187506T1 (fr)
AU (1) AU700069B2 (fr)
BR (1) BR9610578A (fr)
CA (1) CA2230799C (fr)
CZ (1) CZ287818B6 (fr)
DE (2) DE19533816A1 (fr)
ES (1) ES2140130T3 (fr)
GR (1) GR3032901T3 (fr)
HU (1) HU220740B1 (fr)
IL (1) IL123387A (fr)
IN (1) IN188936B (fr)
NO (1) NO310664B1 (fr)
NZ (1) NZ330177A (fr)
PL (1) PL182726B1 (fr)
PT (1) PT874925E (fr)
RO (1) RO119370B1 (fr)
RU (1) RU2145367C1 (fr)
SK (1) SK281340B6 (fr)
TR (1) TR199800456T1 (fr)
TW (1) TW379262B (fr)
UA (1) UA51674C2 (fr)
WO (1) WO1997010374A1 (fr)
ZA (1) ZA967702B (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19640853A1 (de) * 1996-10-02 1998-04-16 Braun Ag Borste für eine Zahnbürste
DE19932368A1 (de) * 1999-07-13 2001-02-08 Pedex & Co Gmbh Verfahren zur Herstellung von mehrschichtigem Borstenmaterial, mehrschichtige Borste und deren Verwendung
FR2796531B1 (fr) * 1999-07-22 2001-09-28 Oreal Applicateur de produit liquide, pateux ou pulverulent comportant des fibres torsadees, et ensemble d'application ainsi equipe
FR2796532B1 (fr) 1999-07-22 2002-02-01 Oreal Dispositif d'application d'un produit liquide, pateux ou pulverulent comportant des fibres torsadees, et ensemble d'application ainsi equipe
CA2289272A1 (fr) * 1999-10-07 2001-04-07 Raul Ioan Risco Appareil de brossage
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
PT1170406E (pt) * 2000-07-04 2008-04-07 Klaus Bloch Método para a realização de um monofilamento e uso do mesmo
JP4720025B2 (ja) * 2001-06-06 2011-07-13 サンスター株式会社 歯ブラシ
DE102013007870A1 (de) 2013-05-08 2014-11-13 Pedex Gmbh Monofil aus Kunststoff und Zahnbürsten-Borste aus einem entsprechenden Monofil
KR20160098211A (ko) 2013-12-12 2016-08-18 콜게이트-파아므올리브캄파니 서로 다른 구강 관리 첨가제들을 갖는 구성요소들을 갖는 다중-구성요소 모, 및 이를 포함하는 구강 관리 장치
AU2013407525B2 (en) 2013-12-12 2017-01-19 Colgate-Palmolive Company Spiral bristle having strand components with different oral care additives, and oral care implement comprising the same
US10477958B2 (en) 2013-12-12 2019-11-19 Colgate-Palmolive Company Multi-component bristle having components with different oral care additives, and oral care implement comprising the same
USD764805S1 (en) 2013-12-16 2016-08-30 Colgate-Palmolive Company Toothbrush
USD765986S1 (en) 2013-12-16 2016-09-13 Colgate-Palmolive Company Toothbrush
USD765985S1 (en) 2013-12-16 2016-09-13 Colgate-Palmolive Company Toothbrush
USD753922S1 (en) 2013-12-16 2016-04-19 Colgate-Palmolive Company Toothbrush
USD765983S1 (en) 2013-12-16 2016-09-13 Colgate-Palmolive Company Toothbrush
USD764175S1 (en) 2013-12-16 2016-08-23 Colgate-Palmolive Company Toothbrush
USD765984S1 (en) 2013-12-16 2016-09-13 Colgate-Palmolive Company Toothbrush
USD760499S1 (en) 2013-12-16 2016-07-05 Colgate-Palmolive Company Toothbrush
DE202015006204U1 (de) * 2015-03-04 2015-11-06 Pedex Gmbh Spiralige Filmente und deren Herstellung
CN104825242A (zh) * 2015-05-16 2015-08-12 张平洲 一种牙刷
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
RU2691915C1 (ru) * 2015-12-14 2019-06-18 Колгейт-Палмолив Компани Приспособление для ухода за полостью рта и спиральная щетинка для применения с данным приспособлением
CN105534010A (zh) * 2015-12-22 2016-05-04 郑州人造金刚石及制品工程技术研究中心有限公司 一种含有纳米碳晶的牙刷丝及制作方法
CN109371480B (zh) * 2018-10-15 2021-05-25 广州东资达实业有限公司 一种密曲无压伤刷丝及其制备方法
US11553783B2 (en) 2019-11-08 2023-01-17 Jacob Koby Ohayon Interchangeable broom bristle with releasable agent

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DE1222888B (de) * 1964-10-29 1966-08-18 Osborn Mfg Co Buerste
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US3567569A (en) * 1965-08-09 1971-03-02 Toyo Rayon Co Ltd Synthetic fibers having novel shape
DE3205641C2 (de) * 1982-02-17 1991-03-28 Pedex & Co. GmbH, 6948 Wald-Michelbach Verfahren und Vorrichtung zur Herstellung von Borstenbündeln oder Einzelborsten aus Kunststoff
DE8522986U1 (de) * 1985-08-09 1985-09-26 Schmitz, Wolfgang, 5000 Köln Gerät zum partiellen Einfärben von Haaren (Bürste)
JPH03289906A (ja) * 1990-04-05 1991-12-19 Mitsuo Ishikawa 歯ブラシ
DE4022890A1 (de) * 1990-07-18 1992-01-23 Geka Brush Georg Karl Gmbh Buerste, insbesondere mascara-buerste
DE4114136A1 (de) * 1991-04-30 1992-11-05 Schlerf Coronet Werke Borstenwaren und verfahren zu ihrer herstellung
DE4139257A1 (de) * 1991-11-29 1993-06-03 Basf Ag Recycling-kunststofformmasse
JP2854207B2 (ja) * 1992-11-05 1999-02-03 帝人株式会社 異型断面剛毛
DE9319214U1 (de) * 1993-12-15 1994-11-10 Wap Reinigungssysteme Gmbh & Co, 89287 Bellenberg Bürste für eine Bürstenwaschanlage für Fahrzeuge

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
DE19533816A1 (de) 1997-03-20
NZ330177A (en) 1999-01-28
KR100666766B1 (ko) 2007-05-17
UA51674C2 (uk) 2002-12-16
PL325522A1 (en) 1998-08-03
JP3792721B2 (ja) 2006-07-05
NO981084L (no) 1998-03-12
IL123387A0 (en) 1998-09-24
HUP9901181A3 (en) 2000-07-28
DE59603889D1 (de) 2000-01-13
SK281340B6 (sk) 2001-02-12
AU6986796A (en) 1997-04-01
RU2145367C1 (ru) 2000-02-10
AU700069B2 (en) 1998-12-17
MX9802011A (es) 1998-08-30
CA2230799C (fr) 2007-11-13
CZ70398A3 (cs) 1998-06-17
AR003562A1 (es) 1998-08-05
EP0874925B1 (fr) 1999-12-08
BR9610578A (pt) 1999-07-06
CN1077154C (zh) 2002-01-02
HUP9901181A2 (hu) 1999-08-30
CA2230799A1 (fr) 1997-03-20
KR19990044379A (ko) 1999-06-25
IL123387A (en) 2002-03-10
HU220740B1 (hu) 2002-05-28
ZA967702B (en) 1997-03-25
IN188936B (fr) 2002-11-23
ATE187506T1 (de) 1999-12-15
RO119370B1 (ro) 2004-08-30
ES2140130T3 (es) 2000-02-16
PT874925E (pt) 2000-05-31
NO310664B1 (no) 2001-08-06
JPH11511812A (ja) 1999-10-12
US5985192A (en) 1999-11-16
SK24998A3 (en) 1998-11-04
CN1209175A (zh) 1999-02-24
WO1997010374A1 (fr) 1997-03-20
NO981084D0 (no) 1998-03-12
CZ287818B6 (en) 2001-02-14
GR3032901T3 (en) 2000-07-31
TR199800456T1 (xx) 1998-05-21
PL182726B1 (pl) 2002-02-28
TW379262B (en) 2000-01-11

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