EP1381719A1 - Monofilament thermoplastique pour poils de brosses - Google Patents

Monofilament thermoplastique pour poils de brosses

Info

Publication number
EP1381719A1
EP1381719A1 EP02732524A EP02732524A EP1381719A1 EP 1381719 A1 EP1381719 A1 EP 1381719A1 EP 02732524 A EP02732524 A EP 02732524A EP 02732524 A EP02732524 A EP 02732524A EP 1381719 A1 EP1381719 A1 EP 1381719A1
Authority
EP
European Patent Office
Prior art keywords
monofilament
monofilament according
core
mixture
bristles
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
EP02732524A
Other languages
German (de)
English (en)
Other versions
EP1381719B1 (fr
Inventor
Georg Weihrauch
Hans-Ulrich Pusch
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 EP1381719A1 publication Critical patent/EP1381719A1/fr
Application granted granted Critical
Publication of EP1381719B1 publication Critical patent/EP1381719B1/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
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • 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
    • D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • 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
    • 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
    • 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 thermoplastic monofilament for bristles that are exposed to increased moisture when in use.
  • Brushing, polishing, when applying media or the like result from the conditions immediately prevailing during use or at the place of use.
  • the auxiliary media used during use such as cleaning agents, cleaning agents, cosmetics, water or the like, should be mentioned in particular.
  • the ambient conditions at the place of use include, in particular, increased air humidity which, in interaction with moist auxiliary media, helps to prevent the moist auxiliary media from drying.
  • Bristles must therefore have a property profile that meets these very different requirements. This is exemplified by a toothbrush, in which the different requirements become particularly clear because the bristles initially have an extremely small diameter, which is approximately between 0.05 and 0.4 mm.
  • the bristles are arranged at a short distance from one another and even packed tightly in bundles.
  • bristles for toothbrushes have to show a good high bending behavior in order to be able to dodge in the purely elastic area and on the other hand to be able to return to the starting position without deformation (straightening ability).
  • the bristles Due to the multitude of forms of movement and the pressure depending on the user when brushing the teeth, the bristles must have good flexural fatigue strength and fatigue strength, taking into account an appropriate service life.
  • the plastic must be such that the bristle can be processed in mechanical or thermal manufacturing processes, including in particular the attachment of the bristles to the bristle carrier.
  • the bristles must be rounded at the end of use in order to produce a gentle, yet sufficient brushing effect on the tooth surfaces and in the interdental spaces, on the one hand, and on the other hand without causing the tooth enamel to become too hard
  • Coextruded filaments are known in textile technology (EP 0 763 611 A1), which consist of a polyester core and a polyamide sheath, but the focus here is on other property profiles than is the case with bristles.
  • coextruded monofilaments for toothbrushes are known (WO 97/14830), which consist, among other things, of a polyamide sheath and a polyester core only high-quality polyamides are used in the jacket.
  • the core consists of a copolyether ester, which is, however, an elastomer and therefore does not meet the requirements for a bristle for toothbrushes.
  • the core and jacket consist of differently treated polyvinyl chlorides.
  • the object of the invention is achieved on a thermoplastic monofilament forming the starting material for bristles in that the monofilament has a polymer mixture of at least one polyamide (PA) and at least one thermoplastic polyester (PE).
  • PA polyamide
  • PE thermoplastic polyester
  • the specific mixing ratio (PA / PE) is selected on the one hand in accordance with the technical and functional properties relevant for the use of the bristle and on the other hand with the environmental conditions relevant for the function of the bristle at the place of use.
  • the proportions of the polymers in the blend for extrusion of thermoplastic monofilament can be applied to the Anfor ⁇ alteration profile of the bristle optimally adjusted.
  • the bending behavior and the bend recovery in adjustment can be sung to bristle diameter and length as well as to the specific type of use of the bristle (toothbrushes, massage brushes, hand ⁇ brushes, cosmetic brushes, paints, etc.) to adjust.
  • It can also take into account the physical and chemical conditions prevailing at the place of use due to the media used there (dentifrices, cleaning agents, water etc.) and adapt to the prevailing environmental conditions (dry or humid atmosphere, moisture retention in the bristles, etc.).
  • the thermoplastic polyester is preferably a polyalkylene terephthalate (PAT), in particular polyethylene terephthalate (PET) or polybutylene terephthalate (PBT) or a mixture thereof.
  • PAT polyalkylene terephthalate
  • PET polyethylene terephthalate
  • PBT polybutylene terephthalate
  • thermoplastic polyesters are not only interesting - their technological properties make them particularly suitable for bristles, they are also much cheaper than the high-quality polyamides previously used for toothbrush bristles, such as PA 6.12.
  • a high proportion of PAT also gives the opportunity to replace high-quality PA, at least in part, with low-value and inexpensive PA such as PA 6.
  • the coextrudate can have the two layers in concentric form, ie in the form of a core and a jacket. Instead, the coextrudate can also have a plurality of monofilaments which are embedded in a second layer which determines the outer cross section of the monofilament. Furthermore, the coextrudate can consist of a core that defines only a part of the circumference, while the second layer forms segments that complete the circumference, for example have a substantially rectangular cross section, which is predominantly from one layer and only in the corners from the other layer is formed.
  • the second layer and the second layer may consist nem single polyamide or mixture of polyamides from egg ⁇ , conversely, of a thermoplastic polyester or a mixture of such polyesters can be formed.
  • the coextrudate consists of a core and a jacket
  • the core consists of a PAT or a mixture of polyalkylene esters
  • the jacket is formed from a polyamide or a polyamide mixture.
  • the core essentially determines the bending behavior and the ability to straighten up, while the jacket is essentially responsible for the brushing effect, for the distribution of application media or cleaning media.
  • Such a bristle has an increased water absorption in the jacket, but this has no or only an insignificant effect on the strength property, since this is largely determined by the core with its considerably reduced moisture absorption.
  • the core can also consist only of a thermoplastic polyester or a polyester mixture, since it is not directly involved in the brushing effect, while the jacket consists of the polymer mixture according to the invention.
  • the polymer mixture according to the invention can be present both in the core and in the jacket, the mixing ratio in favor of the PE or PAT component being increased in the core, in the jacket in favor of the PA component.
  • the excellent strength properties of the polymer mixture according to the invention furthermore make it possible to provide a shell made of any polymer, in particular a PA or a PA mixture, in the case of a core consisting of this mixture.
  • a shell made of any polymer in particular a PA or a PA mixture
  • polyamides for example, can be colored particularly well.
  • This combination of materials also enables the jacket to be made extremely thin.
  • the bristle diameter varies from 5.0 mm for coarse brushes, such as street brushes, to 0.1 mm for toothbrushes, cosmetic brushes etc.
  • the sheath can have a thickness of 0. 01 to 0.5mm.
  • the thickness of the Coat lie in the range between 10 and 50 ⁇ .
  • the polymer mixture according to the invention with its stability-determining properties also gives the possibility of also providing three-layer coextrudates, for example by the core consisting of a PAT or a PAT mixture, an intermediate layer made of the polymer mixture according to the invention and an outer layer made of an elastomer or an elastomer. Blend exists.
  • a copolyether ester is particularly recommended because of its affinity for the polyester portion of the middle layer.
  • the outer wear layer fulfills optimal requirements for fulfilling the requirement profile when brushing, cleaning, massaging or applying media.
  • the core can also be designed as a hollow core in order to receive media and deliver it to the free end of the bristle.
  • the sheath consists of the polymer mixture according to the invention or of PA or a PA mixture, a bristle consisting of a core and a sheath results in better machining of the bristle ends, in particular a perfect rounding enables without edge formation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Brushes (AREA)
  • Artificial Filaments (AREA)
  • Multicomponent Fibers (AREA)

Abstract

La présente invention concerne un monofilament thermoplastique destiné à des poils de brosses qui en cours d'utilisation sont exposés à des taux d'humidité élevés. Ledit filament est constitué d'un mélange polymère d'au moins un polyamide (PA) et d'au moins un polyester thermoplastique (PE), les proportions du mélange étant choisies en fonction d'une part des propriétés techniques fonctionnelles d'importance pour l'utilisation des poils de brosse, et d'autre part des propriétés environnementales d'importance pour la fonction des poils de brosse sur le lieu d'utilisation.
EP02732524A 2001-03-28 2002-03-26 Monofilament thermoplastique pour poils de brosses Expired - Lifetime EP1381719B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10115556 2001-03-28
DE10115556A DE10115556A1 (de) 2001-03-28 2001-03-28 Thermoplastisches Monofilament für Borsten
PCT/EP2002/003364 WO2002077334A1 (fr) 2001-03-28 2002-03-26 Monofilament thermoplastique pour poils de brosses

Publications (2)

Publication Number Publication Date
EP1381719A1 true EP1381719A1 (fr) 2004-01-21
EP1381719B1 EP1381719B1 (fr) 2013-02-20

Family

ID=7679545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02732524A Expired - Lifetime EP1381719B1 (fr) 2001-03-28 2002-03-26 Monofilament thermoplastique pour poils de brosses

Country Status (17)

Country Link
US (1) US6872449B2 (fr)
EP (1) EP1381719B1 (fr)
JP (1) JP2004523674A (fr)
KR (1) KR100891016B1 (fr)
CN (1) CN1223711C (fr)
AR (1) AR033018A1 (fr)
AU (1) AU2002304781B2 (fr)
BR (1) BR0208436B1 (fr)
CA (1) CA2441408A1 (fr)
DE (1) DE10115556A1 (fr)
EG (1) EG23215A (fr)
ES (1) ES2407133T3 (fr)
MX (1) MXPA03008688A (fr)
PT (1) PT1381719E (fr)
RU (1) RU2287030C2 (fr)
TW (1) TW585753B (fr)
WO (1) WO2002077334A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7732017B2 (en) * 2004-03-17 2010-06-08 Akzo Nobel Coatings International B.V. Effect paint
KR101657575B1 (ko) * 2010-04-30 2016-09-20 주식회사 엘지생활건강 치간 세정부재 및 이의 제조방법
US9949560B2 (en) * 2011-04-07 2018-04-24 Kenji Nakamura Cosmetic filament, cosmetic brush bristle material using same filament, and cosmetic brush using same bristle material
KR101281635B1 (ko) 2012-02-27 2013-07-03 비비씨 주식회사 내구성과 항균성 강화를 위해 제올라이트가 첨가된 블렌드 기법을 통한 칫솔모 및 그의 제조방법
USD754442S1 (en) 2013-07-17 2016-04-26 Colgate-Palmolive Company Toothbrush
CN107847043B (zh) * 2015-07-07 2020-06-16 高露洁-棕榄公司 口腔护理器具及与其一起使用的单丝刷毛
WO2017004791A1 (fr) 2015-07-07 2017-01-12 Colgate-Palmolive Company Instrument de soin bucco-dentaire et soie à mono-filament à utiliser avec celui-ci
CN106435823A (zh) * 2016-09-24 2017-02-22 乐昌市百丝塑料制品有限公司 一种人造猪鬃的制备方法
CN113638077A (zh) * 2021-09-13 2021-11-12 四川大学 一种尼龙6和热塑性聚酯弹性体并列复合弹性纤维及其制备方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309021A (en) * 1938-07-16 1943-01-19 Johnson & Johnson Method of treating bristles and product thereof
GB980814A (en) * 1960-04-11 1965-01-20 Gilbert Shaw Composite thermoplastic filaments
DD103933A1 (fr) * 1973-05-15 1974-02-12
US4150674A (en) * 1977-12-27 1979-04-24 Monsanto Company Three-component blends of a polyamide, and a polyester and a lactam terpolymer
US4507361A (en) * 1983-07-18 1985-03-26 Allied Corporation Low moisture absorption bristle of nylon and polyester
JP2731437B2 (ja) * 1989-11-29 1998-03-25 株式会社サンライン 鞘芯型複合モノフィラメント
US5582913A (en) * 1995-08-23 1996-12-10 Hoechst Celanese Corporation Polyester/polyamide composite fiber
US5770307A (en) * 1995-10-18 1998-06-23 E. I. Du Pont De Nemours And Company Coextruded monofilaments
DE19640726A1 (de) * 1996-10-02 1998-04-23 Braun Ag Borste für eine Zahnbürste
DE19818345A1 (de) * 1998-04-24 1999-10-28 Pedex & Co Gmbh Borste, Verfahren zu ihrer Herstellung und Gerät mit einer solchen Borste
DE19841974A1 (de) * 1998-09-14 2000-03-23 Braun Gmbh Borste für eine Zahnbürste, insbesondere für eine elektrische Zahnbürste, sowie Verfahren zu deren Herstellung
DE19848505A1 (de) * 1998-10-21 2000-04-27 Basf Ag Verwendung biologisch abbaubarer Polyester zur Herstellung von Borsten
DE19942147A1 (de) * 1999-09-03 2001-03-08 Trisa Holding Ag Triengen Einzelborste aus Kunststoff für eine Bürste, insbesondere eine Zahnbürste sowie ein Verfahren zur Herstellung einer Einzelborste

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02077334A1 *

Also Published As

Publication number Publication date
KR20030097816A (ko) 2003-12-31
TW585753B (en) 2004-05-01
US20040091704A1 (en) 2004-05-13
RU2003131400A (ru) 2005-01-27
ES2407133T3 (es) 2013-06-11
US6872449B2 (en) 2005-03-29
PT1381719E (pt) 2013-05-08
DE10115556A1 (de) 2002-10-02
KR100891016B1 (ko) 2009-03-31
CN1223711C (zh) 2005-10-19
BR0208436B1 (pt) 2013-10-08
MXPA03008688A (es) 2003-12-12
CA2441408A1 (fr) 2002-10-03
CN1500163A (zh) 2004-05-26
BR0208436A (pt) 2004-03-30
JP2004523674A (ja) 2004-08-05
EG23215A (en) 2004-08-31
EP1381719B1 (fr) 2013-02-20
WO2002077334A1 (fr) 2002-10-03
AU2002304781B2 (en) 2006-12-21
AR033018A1 (es) 2003-12-03
RU2287030C2 (ru) 2006-11-10

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