EP2934234B1 - Monofil aus kunststoff und zahnbürsten-borste aus einem entsprechenden monofil - Google Patents

Monofil aus kunststoff und zahnbürsten-borste aus einem entsprechenden monofil Download PDF

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Publication number
EP2934234B1
EP2934234B1 EP14724307.5A EP14724307A EP2934234B1 EP 2934234 B1 EP2934234 B1 EP 2934234B1 EP 14724307 A EP14724307 A EP 14724307A EP 2934234 B1 EP2934234 B1 EP 2934234B1
Authority
EP
European Patent Office
Prior art keywords
monofilament
matrix
accordance
area
rib
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.)
Active
Application number
EP14724307.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2934234A1 (de
Inventor
Holger Meid
Florian KISLING
Michael Müller
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 EP2934234A1 publication Critical patent/EP2934234A1/de
Application granted granted Critical
Publication of EP2934234B1 publication Critical patent/EP2934234B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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
    • A46D1/0253—Bristles having a shape which is not a straight line, e.g. curved, "S", hook, loop
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0269—Monofilament bristles
    • 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
    • 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
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • 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
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • 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

Definitions

  • the invention relates to a plastic monofilament and a toothbrush bristle made from a corresponding monofilament.
  • the cleaning effect of a brush depends essentially on the geometry of the individual bristles and the material of which the bristles are made. In particular, it has proved to be advantageous to structure or profile the bristles on their lateral surface so that the bristles have a scraping action.
  • bristles which have a plurality of axially parallel ribs, which are integrally formed at their radially inner end on a core forming the matrix.
  • the core and the rib may be made of different plastics, on the one hand to adapt the strength and bending property of the bristle and on the other hand, the cleaning effect by the rib to the desired application.
  • the bristle is used on a toothbrush, the choice of materials should ensure that the user can not be injured.
  • a monofilament according to the preamble of claim 1 is known from US 2008 0221618 known.
  • the invention has for its object to provide a monofilament for producing a bristle or a toothbrush bristle made therefrom, in which for the material of the rib and the matrix improved selection and combination options are given.
  • the monofilament has a matrix which, at least in a first region, consists of a first plastic material and has at least one rib extending in the longitudinal direction of the monofilament, which consists of a second plastic material and which is in the first region of the matrix is held positively.
  • the materials and the parameters in the extrusion of the monofilament are chosen so that the rib is also welded to the first region of the matrix in addition to the positive connection. Alternatively or additionally, however, it may also be provided that the rib is adhesively bonded to the first region of the matrix in addition to the positive connection.
  • the rib has a radially outwardly tapering cross-section, for example a triangular or drop-shaped cross-section, so that it tapers in its radially outer cross-sectional area.
  • the rib In order to ensure a good positive connection between the rib and the first region of the matrix, the rib should be provided with undercuts at its radially inner end region embedded in the first area of the matrix. It is preferably provided that in the radially inner end region of the rib, a widespread foot is formed, which is encompassed by the first plastic material of the first region of the matrix.
  • the monofilament has a plurality of ribs, which should preferably be distributed equally over the circumference of the monofilament.
  • the ribs run in the form of a Wendel around the matrix. This can be achieved in particular if the monofilament is twisted after the extrusion in a manner known per se. According to the twisting takes place with 50 to 400 revolutions per meter.
  • the 1st area forms the entire matrix, i. the matrix consists exclusively of the first plastic material, in which the rib or the ribs are held in a form-fitting manner.
  • the first area of the matrix has an annular cross-section and surrounds at least one inner, second area of the matrix, which consists of a third plastic material. In this way, the performance characteristics of the monofilament or bristle made therefrom can be better adapted to the desired application.
  • the ribs are connected to one another by means of the inner, second region of the matrix.
  • the plastic materials can be chosen largely freely due to the positive connection.
  • the first plastic material of the first area of the matrix is a rigid thermoplastic polyester and in particular PBT (polybutylene terephthalate).
  • the second synthetic material of the rib according to the invention is a soft thermoplastic material and in particular a thermoplastic elastomer.
  • the 3rd plastic material of the inner 2nd area of the matrix can also be freely selected within wide limits. If the ribs are connected together at their radially inner ends by means of the second region of the matrix, it is preferably provided that the third plastic material of the second region of the matrix is equal to the second plastic material of the ribs.
  • At least one rib is colored at least in sections and thereby stands out in terms of color from the rest of the monofilament. In this way, it is possible to visualize to the user that the monofilament is twisted, thereby avoiding confusion when using the monofilament.
  • bristles can be produced in the usual way, which are preferably used as toothbrush bristles.
  • FIG. 1 shows a cross section through a monofilament 10 made of plastic, which has a consisting of a 1st area 13 matrix 11 with a circular cross section, which consists entirely of a first plastic material, such as a rigid thermoplastic polyester.
  • the monofilament 10 has three in the longitudinal direction, ie perpendicular to the plane extending radially outwardly from the matrix 11 protruding ribs 12.
  • Each rib 12 has a triangular, radially outwardly tapering cross-section and is with its radially inner, wide end portion in a form-fitting manner held in the matrix 11. Due to the positive connection, the material of the ribs 12 can be chosen freely, ie it is not dependent on the type of the first plastic material of the matrix 11.
  • the second plastic material of the ribs 12 is a soft thermoplastic material.
  • the ribs 12 may be held in the matrix 11 by means of gluing or welding in addition to the positive locking.
  • FIG. 2 shows a FIG. 1 similar embodiment and differs from this only in that in the radially inner end portion of the ribs 12 each have a common foot 15 is provided which substantially improves the holding forces to be achieved via the positive locking.
  • FIG. 3 shows a further embodiment of the monofilament 10 according to the invention.
  • the matrix 11 has a first region 13 of a first plastic material which has an annular cross-section. Within the first annular region 13, a second region 14 of the matrix is arranged, which consists of a third plastic material.
  • the ribs 12 are held in a form-fitting manner in the annular first region 13 of the matrix 11 and lie with their radially inner ends on the inner second region 14 of the matrix 11 at.
  • the ribs 12 are connected to the inner second region 14 of the matrix 11 by gluing or welding.
  • FIG. 4 shows an embodiment according to FIG. 3 corresponding embodiment, which only differs therefrom in that the ribs 12 and the inner second region 14 of the matrix consist of a uniform material and are formed as a monolithic body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)
  • Multicomponent Fibers (AREA)
EP14724307.5A 2013-05-08 2014-05-06 Monofil aus kunststoff und zahnbürsten-borste aus einem entsprechenden monofil Active EP2934234B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013007870.9A DE102013007870A1 (de) 2013-05-08 2013-05-08 Monofil aus Kunststoff und Zahnbürsten-Borste aus einem entsprechenden Monofil
PCT/EP2014/001200 WO2014180560A1 (de) 2013-05-08 2014-05-06 Monofil aus kunststoff und zahnbürsten-borste aus einem entsprechenden monofil

Publications (2)

Publication Number Publication Date
EP2934234A1 EP2934234A1 (de) 2015-10-28
EP2934234B1 true EP2934234B1 (de) 2016-06-15

Family

ID=50732092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14724307.5A Active EP2934234B1 (de) 2013-05-08 2014-05-06 Monofil aus kunststoff und zahnbürsten-borste aus einem entsprechenden monofil

Country Status (7)

Country Link
US (1) US20150354098A1 (enExample)
EP (1) EP2934234B1 (enExample)
JP (1) JP2016524481A (enExample)
KR (1) KR20160006661A (enExample)
CN (1) CN105188475B (enExample)
DE (1) DE102013007870A1 (enExample)
WO (1) WO2014180560A1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015205265A1 (de) * 2015-03-24 2016-09-29 Pedex Gmbh Filament aus Kunststoff
US10136723B2 (en) * 2015-12-14 2018-11-27 Colgate-Palmolive Company Oral care implement
CN107041622A (zh) * 2017-05-23 2017-08-15 湖北瑞特威日化有限公司 一种塑料牙刷毛及其制造方法
DE102018000663A1 (de) * 2018-01-29 2019-08-01 Pedex Gmbh Filament und Zahnbürste mit zumindest einem entsprechenden Filament
KR102197602B1 (ko) 2019-09-04 2020-12-31 주식회사 케이앤케이 이형 단면을 갖는 필라멘트 제조용 방사구금 및 이에 의해 제조된 필라멘트

Family Cites Families (17)

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US2317485A (en) * 1940-04-27 1943-04-27 Pepsodent Co Brush
US3209402A (en) * 1962-03-07 1965-10-05 Celanese Corp Apparatus for producing multicom-ponent filaments and yarns
US4457973B1 (en) * 1980-06-06 1995-05-09 Kanebo Synthetic Fibert Ltd Conductive composite filaments and methods for producing said composite filaments
JPS62170509A (ja) * 1986-01-20 1987-07-27 Teijin Ltd 伸縮性合成繊維糸条およびその製造方法
DE19533815A1 (de) * 1995-09-13 1997-03-20 Coronet Werke Gmbh Zahnbürste und Verfahren zu ihrer Herstellung
DE19533816A1 (de) 1995-09-13 1997-03-20 Coronet Werke Gmbh Verfahren zur Herstellung spiraliger Borsten
US5707735A (en) * 1996-03-18 1998-01-13 Midkiff; David Grant Multilobal conjugate fibers and fabrics
AU3868397A (en) * 1996-08-27 1998-03-19 Chisso Corporation A non-woven fabric and an absorbent article using thereof
US5879801A (en) * 1997-01-10 1999-03-09 Basf Corporation Multiple domain fibers having inter-domain boundary compatibilizing layer and methods and apparatus for making the same
DE19932368A1 (de) * 1999-07-13 2001-02-08 Pedex & Co Gmbh Verfahren zur Herstellung von mehrschichtigem Borstenmaterial, mehrschichtige Borste und deren Verwendung
KR100760797B1 (ko) * 2000-09-29 2007-10-04 이 아이 듀폰 디 네모아 앤드 캄파니 신축성 중합체 섬유, 이 섬유의 제조에 유용한 방사구금,및 이로부터 제조한 용품
JP4816037B2 (ja) * 2005-12-02 2011-11-16 サンスター株式会社 歯ブラシ
JP4992285B2 (ja) * 2006-04-21 2012-08-08 サンスター株式会社 歯ブラシ
US20080221618A1 (en) * 2007-03-09 2008-09-11 Gaoyuan Chen Co-extruded tissue grasping monofilament
JP5338233B2 (ja) * 2008-09-30 2013-11-13 サンスター株式会社 歯ブラシ用フィラメント及びこれを植設した歯ブラシ
JP5387352B2 (ja) * 2009-11-13 2014-01-15 東レ・モノフィラメント株式会社 歯ブラシ用モノフィラメント
MY194080A (en) * 2012-09-25 2022-11-11 Lion Corp Tapered bristles, method for manufacturing same, and toothbrush provided with tapered bristles

Also Published As

Publication number Publication date
WO2014180560A1 (de) 2014-11-13
US20150354098A1 (en) 2015-12-10
JP2016524481A (ja) 2016-08-18
CN105188475B (zh) 2017-07-04
EP2934234A1 (de) 2015-10-28
CN105188475A (zh) 2015-12-23
KR20160006661A (ko) 2016-01-19
DE102013007870A1 (de) 2014-11-13

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