EP0895454A1 - Procede pour produire des articles de brosserie - Google Patents

Procede pour produire des articles de brosserie

Info

Publication number
EP0895454A1
EP0895454A1 EP97919381A EP97919381A EP0895454A1 EP 0895454 A1 EP0895454 A1 EP 0895454A1 EP 97919381 A EP97919381 A EP 97919381A EP 97919381 A EP97919381 A EP 97919381A EP 0895454 A1 EP0895454 A1 EP 0895454A1
Authority
EP
European Patent Office
Prior art keywords
bristles
bristle
bed
perforated template
fastening
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
EP97919381A
Other languages
German (de)
English (en)
Other versions
EP0895454B1 (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
Application filed by Coronet Werke GmbH filed Critical Coronet Werke GmbH
Publication of EP0895454A1 publication Critical patent/EP0895454A1/fr
Application granted granted Critical
Publication of EP0895454B1 publication Critical patent/EP0895454B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/02—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by pitch, resin, cement, or other adhesives

Definitions

  • the invention relates to a method for producing bristle products with a bristle carrier and a bristle cover made of individually standing bristles made of plastic.
  • bristle products are understood to mean brushes of all kinds, floor cleaning devices with bristle trimmings, brushes of all kinds, as well as tapes, plates, mats or the like which are covered with bristles.
  • body care brushes such as toothbrushes, massage brushes, hairbrushes or the like can be concerned. or brushes for applying coating agents, cosmetics, medicines or the like. or doormats, brush tapes, polishing tapes or the like.
  • the bristles are usually combined into bundles or larger packages and fastened to the bristle carrier in this form.
  • Bundles were previously fastened mechanically by looping a bristle collar and fastening it in the bristle carrier by means of an anchor.
  • This type of attachment Cleaning is complex and, in some applications, especially with hygiene brushes, leads to unpleasant side effects, since the holes in the bristle carrier necessary for this lead to the accumulation of dirt and bacteria.
  • the bundles or packages were fastened in a putty or adhesive bed.
  • plastic bristles has opened up other fastening options, namely welding the bundles to the
  • bristle carriers and bristles - as is largely the case today - consist of plastics and are joined together by welding, they must be made of the same Plastic or such material pairings exist which can be welded to one another to the extent that there is sufficient joining strength. Only a few material pairings, and in particular those which are very different, do not meet this requirement
  • the bristle carrier which usually also forms the handle or handle of the brush, should generally be rigid and consist of an inexpensive plastic, while the bristles consist of a high-quality plastic with comparatively high wear resistance, good bending capacity and high flexural fatigue strength must exist.
  • the bristle carrier therefore, primarily polyolefins are used, while the bristles themselves are polyamides. These, as well as other suitable plastic combinations, cannot be welded or can only be welded with difficulty.
  • the pouring of the bristles since surface adhesive forces in particular have to ensure the necessary pull-out strength, while a material bond occurs only to a limited extent.
  • the bundles have to be melted at their ends to form a thickening in order to create an additional frictional connection in the carrier.
  • bristle products are known in which the bristle stock has bristle bundles as well as standing bristles or consists entirely of such individual bristles.
  • EP 0 165 546 A1 describes a toothbrush whose trimmings consist partly of bundles of bristles and partly of individual bristles. The individual bristles are arranged to cover the entire surface and, like the bundles, are welded to the plastic bristle carrier. As already indicated, this presupposes certain material pairings and generally requires the wearer in Adaptation to the bristles a much too expensive plastic.
  • bristles obtain their stability and their bending ability, and above all their permanent bending elasticity, by stretching or stretching the extruded monofilaments and then, as a rule, also thermally stabilizing them in order to obtain a molecular longitudinal orientation.
  • This molecular orientation is lost as soon as the temperature is applied to the bristle. Consequently, the ends of the bristle on the fastening side are damaged during welding.
  • the bristle loses its flexural elasticity and thus its ability to straighten up.
  • the individual bristles are combined to form a package that forms the entire bristle stock and are inserted into a frame-like carrier.
  • the bristles are welded together along their circumferential contact surfaces.
  • the pull-out strength of the bristles is inadequate in this embodiment, since the contact surface with a circular bristle cross section is practically only linear and the bristles are consequently connected to one another only along four such linear contact surfaces.
  • the invention is based on the object of proposing a method with which bristle articles with individually standing bristles can be produced from plastic, in which the bristles are at defined and predeterminable distances with adaptation to the respective application medium and the intended use of the bristle article. This object is achieved in that
  • the individual bristles with their attachment-side ends first in a hole of a perforated template, the hole diameter of which is slightly larger than that of an individual bristle and whose hole pattern corresponds to the positioning of the bristles within the bristle stock or a part thereof, insofar as they are introduced that
  • Displacement can be clamped in the hole template
  • a bed made of a liquid, curable material is prepared at least on the fastening-side surface of the bristle carrier,
  • the bristles are fed individually to the manufacturing process, in an arrangement to one another that corresponds to their later positioning within the framework of the bristle stocking. This is achieved with the perforated template, the holes of which are arranged congruently with the position of the individual bristles within the stock and thus the bristles in front position after fastening.
  • the bristles are clamped in this prepositioning so that they cannot move radially or axially from the position.
  • a bed made of a liquid, curable material is prepared at least on the fastening-side surface of the bristle carrier. The attachment-side ends of the bristles protruding beyond the perforated template and immersed in the bed are individually and completely flowed around by the liquid bed material and firmly integrated after the bed has hardened.
  • the individual bristles can be connected to the bristle carrier at a defined distance from one another and in a predetermined arrangement. It is possible to borrow any desired spacing of the bristles within the bristle stock, as well as any desired assignment of the bristles to one another, using appropriate perforated templates. This ensures that the bristles do not lie tightly packed against one another, rather defined capillaries are created. Any capillary shape can be realized by assigning the bristles and any capillary cross section by the spacing of the bristles. This enables an optimal adaptation to the intended use of the bristle product produced in this way; in particular, the aforementioned geometry can also be adapted to the respective viscosity of the application medium to be processed. The distance will be chosen narrower for low-viscosity application media than for higher-viscosity media.
  • the defined distance between the bristles ensures above all that the fastening-side end of each individual bristle flows around the bed and is embedded in the hardening bed material. Every bristle is properly anchored and all bristles of the trimmings have the same pull-out strength. It is no longer necessary to clean the bristle trimmings; it is impossible to loosen individual bristles.
  • the defined distance ensures that the bristle trimmings can be cleaned properly by rinsing. This is particularly important for hygiene brushes, toothbrushes and brushes.
  • the bristle stock can dry out quickly after use to prevent bacterial nesting.
  • each bristle is better used than in a bundle or package arrangement, where the inner bristles are supported by the outer bristles, as a result of which their bending capacity cannot be used at all.
  • the bristles on the outside are subjected to greater stress, with the result that they are also deformed more quickly or become unusable in some other way, while in the case of bristle stocking made up of individually spaced, spaced bristles, each bristle can develop its effect and all bristles essentially in the same way are stressed so that the service life can be increased since individual bristles do not fail prematurely.
  • the bristles are preferably themselves immersed in the bed made of the liquid material by means of the perforated template. Instead, of course, the bed can also be moved against the fixed hole template.
  • the immersion depth of the attachment-side ends of the bristles is predetermined by moving the perforated template with the clamped bristles in an adjustable way.
  • the individual bristles can be fed to the perforated template as endless monofilaments and drawn into it. After the endless monofilaments have been fixed in the perforated template, the bristles on the feed side of the perforated template can be cut to length from the endless monofilaments as desired. The cutting to length can of course also only take place after the bed has hardened.
  • the endless monofilaments can be stored individually or in groups on a spool and can be removed from it. If several monofilaments are available on a spool, they are separated before being fed to the perforated template. Instead, the bristles can also be processed from longer monofilament sections or cut to length.
  • the invention thus also enables bristles made of different materials, with different diameters and / or cross sections (circular, polygonal or the like), as well as different surface structures (smooth, roughened, flocked, etc.) to be processed without problems.
  • Structured or polygonal bristles in particular are very difficult to process in bundles or lead to uncontrolled capillary spaces in the bundle.
  • defined relationships are created with the invention.
  • the invention furthermore makes it possible for bristle-free spaces within the bristle stock generated that bristles are only inserted into those holes of the hole template that are congruent with bristle positions in the bristle stock.
  • Capillaries of larger cross-section or even chamber-like free spaces can be obtained in order to create storage spaces of any cross-section. It is thus also possible to use a single perforated template to produce bristle trimmings with different bristle spacings as long as they lie in the spacing grid in the perforated pattern of the template.
  • the perforated template can also be closed in the areas in which the bristle trim has larger gaps.
  • the invention further provides the possibility of producing a bristle stock from individually standing bristles and bristles arranged in the bundle by simultaneously placing the individual bristles and the bristles combined into bundles in a perforated template, the hole pattern of the positioning of the individual bristles and the bristle bundles within the Bristle trim corresponds, insofar as it has been introduced, that the fastening-side ends of the individual bristles and the bundles protrude on the opposite side of the perforated template.
  • the individual bristles and the bundles are then immersed in the bed at the same time and the rest of the procedure is as before. In this way, bristle articles with defined brush surfaces can be created.
  • the bed on the bristle carrier can be a liquid adhesive, a cold or polymerizing at a moderate temperature Plastic or also from the melted bristle carrier itself or its melted surface. Depending on the material combination of bristle and bed, there is a non-positive and / or material bond.
  • the pull-out strength of the individual bristles can be increased further by structuring the individual bristles after inserting them into the perforated template at their protruding, fastening-side ends or by thermally or mechanically deforming them and then immersing them in the bed, so that there is also a kind of positive locking.
  • the bristles are clamped after being introduced into the perforated template or in a similar perforated template connected upstream thereof and are cut flat at their ends opposite the attachment-side ends and these ends are subsequently cut into one Machined shape deviating from their flat cut surface, e.g. be rounded. Only then are the bristles with the attachment-side ends immersed in the bed using the perforated template.
  • the processing of the ends of the bristles on the use side can be carried out in an optimal manner, namely mechanically, for example by grinding, by chemical treatment or by thermal treatment, for example by means of laser beams.
  • the advantages of the spaced apart arrangement of the individual bristles are particularly effective in the latter method.
  • the laser processing of the bristle ends for the purpose of rounding is admittedly known.
  • the method fails in the case of bristles arranged in bundles, since the bristle ends within the bundle have different distances and therefore cannot be controlled exactly, with the result that part of the bristles welds to one another. Due to the perfectly spaced and reproducible arrangement of the bristle ends in the method according to the invention, the control of the bristle ends with the laser source is exactly possible.
  • the bristles are released from the clamping after the ends have been machined and with their machined ends are displaced by different axial displacement into a curved envelope surface that deviates from the cutting plane, then cut flat at the ends on the fastening side and then into the bed can be immersed.
  • Figure 1 is a schematic view of a
  • Figure la is a plan view of an embodiment of the hole template
  • Figure 2 shows the system of Figure 1 in a further process stage
  • Figure 2a is a plan view of the finished
  • 3a-c show an embodiment of a brush-like bristle product in longitudinal section
  • Figure 5a, b an embodiment in the form of a
  • Figure 6 is a plan view of another
  • Embodiment of the perforated template with inserted bristles Embodiment of the perforated template with inserted bristles.
  • the manufacture of a brush is described using the embodiment of FIGS. 1 and 2.
  • the brush has a handle 1 which is provided on its head with a so-called brush clamp 2, which forms a kind of sleeve and the outer contour of the bristle trim of the Brushes determined.
  • a bed 3 made of a liquid or liquefiable material is enclosed within the brush clamp 2. The handle 1, the brush clamp 2 and the bed 3 together form the bristle holder.
  • the handle 1 of the brush is positioned in the manufacturing system in a manner not shown.
  • the bristles 4 are to be fastened individually standing on the bristle carrier.
  • the bristles are fed as endless monofilaments 5 from a coil 6.
  • the leading end of the endless monofilament 5 is inserted into a perforated template, designated 7 in total, and drawn into the latter.
  • the perforated template is made in several parts. It consists of three congruent template parts 8, 9 and 10 and clamping plates 11, 12 arranged between them, which can be moved according to the horizontal direction arrows.
  • the hole template 7 has holes 13 in all of its components, the diameter of which is slightly larger than the cross section of the individual bristles 4.
  • the hole template 7 has a hole pattern which is congruent with the positioning and arrangement of the individual bristles 4 within the bristle stocking of the Brush is. This can also be seen in FIG. 1 a, where the stencil part 8 is shown broken off and the clamping plate 11 underneath can be seen.
  • the endless monofilaments 5 are drawn or inserted with their leading end into the perforated template 7 until the leading ends protrude beyond the perforated template 7 on the opposite side. They then form the fastening ends 14 of the individual bristles 4.
  • the clamping plate 11 and the clamping plate 12 moved into the clamping position (to the right in the drawing), so that the bristles are clamped axially and radially.
  • the perforated template 9 with the clamped bristles is then moved in the direction of the bristle holder until the ends 14 on the fastening side are immersed in the liquid bed 3.
  • the front template part 10 and one of the clamping plates are also immersed in the brush clamp 2, so that the latter acts in a centering manner, while the template part 9 is seated on the free end face of the brush clamp 2 and thus the immersion depth of the attachment-side ends 14 in the bed 3 predetermined.
  • the bristles 11 are then cut to length from the endless monofilaments 5 on the back or top of the perforated template 7 by a transverse knife.
  • the perforated template 7 can of course also be filled with the bristles at another position and transported to the position according to FIG. 2 with the fully prepared bristle trim.
  • the bristle holder can also be moved against the stationary template.
  • the perforated template is retracted so that the finished brush according to FIG. 20 can be removed and the next bristle holder brought into the production position and the monofilaments 5 can be retightened by a bristle length.
  • the individual bristles 4 are located at a defined distance from one another, which for reasons of a better overview is shown in the upper part of the illustration. is shown larger. It is readily recognizable that when not all holes 13 of the hole template 7 are loaded, larger gaps can also be created within the bristle stock, which can serve as storage space for an application medium.
  • FIG. 3 shows an embodiment of a brush-like bristle product.
  • 4a shows the bristle carrier 15 which has the hardening bedding material on its fastening-side surface.
  • the individual bristles 16 are arranged equidistantly and embedded, but, as shown in FIG. 3c, they have different lengths, so that the bristles also show different bending behavior towards their free end and also between the shorter and the longer bristle ends
  • the manufacture takes place in such a way that the bristles clamped in the perforated template 7 are first cut flat at their ends opposite the fastening-side ends 14 and then processed at these ends so that, for example, they receive spherically curved, rounded tips 17.
  • the bristles are then shifted axially to different degrees according to the desired topography after loosening the clamping plates 11, 12.
  • the bristles projecting on the opposite side with an unequal length are then cut flat.
  • the individual bristles 16 are then dipped into the bed 3 (FIG. 1) with their ends projecting beyond the perforated template 7 and fastened.
  • FIG 4 shows a modified embodiment in which individual holes of the perforated template are not loaded in the longitudinal center plane of the bristle trim or the perforated template is closed there, so that chamber-like free spaces 18 are created within the bristle trim which can serve as storage space for the application medium.
  • FIG. 5 shows a toothbrush with a brush head 19 forming the bristle carrier.
  • the entire bristle stock is formed from individually standing bristles 20, which are fastened to the brush head 19 to a large extent, filling the surface of the brush head 19 to an equal extent.
  • the ends 21 of the individual bristles 20 are in turn rounded like a dome.
  • the bristle ends 21 lie on an enveloping surface with a type of wave profile, wave troughs and wave crests running through in the transverse direction (perpendicular to the plane of the drawing).
  • FIG. 6 shows, by way of example, a perforated diaphragm 7, with which it is possible, in addition to individually standing bristles 4, which are guided and clamped in corresponding holes, to also guide bundles 21 with bristles lying close together in correspondingly larger holes.

Landscapes

  • Brushes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

L'invention concerne des articles de brosserie comportant un support pour les poils et un ensemble de poils constitué de poils individuels en matière plastique. Le procédé de production de ces articles de brosserie consiste à introduire les extrémités côté fixation de chaque poil individuel dans un trou d'un gabarit perforé, dont le diamètre des trous est légèrement supérieur à celui d'un poil individuel et dont le motif de perforation correspond au positionnement des poils dans un ensemble de poils ou une partie de cet ensemble. Les poils sont introduits de sorte que leurs extrémités côté fixation dépassent d'une longueur pratiquement égale du côté opposé du gabarit perforé. Les poils sont ensuite fixés dans le gabarit perforé de façon à empêcher tout déplacement axial et radial. Une couche de matériau liquide durcissable est préparée au moins sur la surface côté fixation du support de poils, et entoure les poils dont les extrémités côté fixation sont plongées dans la couche, puis cette dernière est durcie.
EP97919381A 1996-04-23 1997-04-17 Procede pour produire des articles de brosserie Expired - Lifetime EP0895454B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19616112 1996-04-23
DE19616112A DE19616112A1 (de) 1996-04-23 1996-04-23 Verfahren zur Herstellung von Borstenwaren
PCT/EP1997/001933 WO1997039649A1 (fr) 1996-04-23 1997-04-17 Procede pour produire des articles de brosserie

Publications (2)

Publication Number Publication Date
EP0895454A1 true EP0895454A1 (fr) 1999-02-10
EP0895454B1 EP0895454B1 (fr) 2000-01-19

Family

ID=7792152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97919381A Expired - Lifetime EP0895454B1 (fr) 1996-04-23 1997-04-17 Procede pour produire des articles de brosserie

Country Status (26)

Country Link
US (1) US6220672B1 (fr)
EP (1) EP0895454B1 (fr)
JP (1) JP2000508566A (fr)
CN (1) CN1105525C (fr)
AR (1) AR006787A1 (fr)
AT (1) ATE188852T1 (fr)
AU (1) AU710801B2 (fr)
BR (1) BR9708740A (fr)
CA (1) CA2251929C (fr)
CO (1) CO4930322A1 (fr)
CZ (1) CZ291927B6 (fr)
DE (2) DE19616112A1 (fr)
DK (1) DK0895454T3 (fr)
ES (1) ES2142155T3 (fr)
GR (1) GR3033263T3 (fr)
HU (1) HU220683B1 (fr)
IN (1) IN190448B (fr)
NO (1) NO314976B1 (fr)
NZ (1) NZ332500A (fr)
PL (1) PL185745B1 (fr)
PT (1) PT895454E (fr)
RU (1) RU2197160C2 (fr)
TW (1) TW374063B (fr)
UA (1) UA55410C2 (fr)
WO (1) WO1997039649A1 (fr)
ZA (1) ZA973400B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3467451B2 (ja) * 1999-06-25 2003-11-17 株式会社呉竹 毛 束
DE19932377A1 (de) * 1999-07-13 2001-02-08 Coronet Werke Gmbh Verfahren und Vorrichtung zur Herstellung von Bürsten sowie danach hergestellteBürsten
CH694748A5 (fr) * 2000-03-01 2005-07-15 Miodrag Mijatovic M Design Sa Brosses à toute image.
DE10046536A1 (de) * 2000-09-19 2002-03-28 Coronet Werke Gmbh Verfahren zur Herstellung von Borstenwaren
DE102007006361B3 (de) * 2007-02-08 2008-09-04 Ki-Si-Co Gmbh Verfahren und Vorrichtung zur Herstellung von Pinseln sowie Pinsel
CN103181679B (zh) * 2012-05-09 2015-07-08 福建新金誉工贸有限公司 一种油漆刷头自动装毛机构
DE102014104945B4 (de) * 2014-04-08 2016-03-03 Axel Stein Fußmatte mit Flüssigkeitsspeicher
FI4018880T3 (fi) * 2017-03-07 2023-03-14 Orkla House Care Ab Maalipensseli, joka käsittää harjassekoituksen kolmen eri tyypin harjaksista

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078358A (en) * 1933-07-29 1937-04-27 Jr Ernest B Wright Brush and method of making the same
EP0142885B1 (fr) 1983-11-16 1991-02-06 Anchor Advanced Products, Inc. Procédé de fabrication de brosses pourvues de moyens propres de fixation des soies et brosses ainsi obtenues
DE3820372C2 (de) * 1988-06-15 1997-07-24 Coronet Werke Gmbh Verfahren und Vorrichtung zur Herstellung von Borstenwaren
DE4006325A1 (de) * 1990-03-01 1991-09-05 Schlerf Coronet Werke Borstenbearbeitung
DE4027108A1 (de) * 1990-08-28 1992-03-05 Schlerf Coronet Werke Verfahren zum verbinden von borstenbuendeln mit einem borstentraeger aus kunststoff und vorrichtung hierfuer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9739649A1 *

Also Published As

Publication number Publication date
NO984905L (no) 1998-12-22
NO984905D0 (no) 1998-10-21
DE59701044D1 (de) 2000-02-24
RU2197160C2 (ru) 2003-01-27
AU2387897A (en) 1997-11-12
DK0895454T3 (da) 2000-07-03
JP2000508566A (ja) 2000-07-11
UA55410C2 (uk) 2003-04-15
PL185745B1 (pl) 2003-07-31
PT895454E (pt) 2000-06-30
CA2251929C (fr) 2005-04-05
CA2251929A1 (fr) 1997-10-30
ZA973400B (en) 1997-11-18
CN1105525C (zh) 2003-04-16
HUP9903630A2 (hu) 2000-02-28
US6220672B1 (en) 2001-04-24
CN1216450A (zh) 1999-05-12
IN190448B (fr) 2003-07-26
ATE188852T1 (de) 2000-02-15
AR006787A1 (es) 1999-09-29
CZ339298A3 (cs) 1999-03-17
ES2142155T3 (es) 2000-04-01
BR9708740A (pt) 1999-08-03
HUP9903630A3 (en) 2000-06-28
GR3033263T3 (en) 2000-09-29
AU710801B2 (en) 1999-09-30
NO314976B1 (no) 2003-06-23
TW374063B (en) 1999-11-11
HU220683B1 (hu) 2002-04-29
CZ291927B6 (cs) 2003-06-18
WO1997039649A1 (fr) 1997-10-30
NZ332500A (en) 2000-01-28
PL329513A1 (en) 1999-03-29
EP0895454B1 (fr) 2000-01-19
CO4930322A1 (es) 2000-06-27
DE19616112A1 (de) 1997-10-30

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