EP0895454A1 - Method for the production of bristle goods - Google Patents

Method for the production of bristle goods

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)
French (fr)
Other versions
EP0895454B1 (en
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/en
Application granted granted Critical
Publication of EP0895454B1 publication Critical patent/EP0895454B1/en
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

Bristle goods with a bristle support and a bristle group comprising individual plastic bristles are manufactured by first inserting the fastening ends of each individual bristle into a hole of a punched template. The diameter of the template hole is not much larger than the individual bristles, and the template hole pattern corresponds to the positioning of the bristles within the bristle group or a part thereof. Said bristles are inserted in so far that the fastening ends thereof project out of the opposite side of the punched template to a substantially equal extent, the bristles are subsequently fixed in the punched template to prevent axial and radial displacement. A bed of a liquid, hardenable substance is prepared at least on the fastening bristle-carrier surface, and said liquid substance flows around the bristles with their fastening ends immersed in the bed, and the bed is subsequently hardened.

Description

Verfahren zur Herstellung von Borstenwaren Process for the production of bristle goods
Die Erfindung betrifft ein Verfahren zur Herstellung von Borstenwaren mit einem Borstenträger und einem Borstenbe¬ satz aus einzeln stehenden Borsten aus Kunststoff.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.
Unter Borstenwaren werden im vorliegenden Zusammenhang Bürsten aller Art, Bodenreinigungsgeräte mit Borstenbe¬ satz, Pinsel aller Art, wie auch Bänder, Platten, Matten od. dgl., die mit Borsten besetzt sind, verstanden. Es kann sich insbesondere um Körperpflegebürsten, wie Zahn¬ bürsten, Massagebürsten, Haarbürsten od.dgl. oder um Pinsel zum Auftragen von Beschichtungsmitteln, Kosmetika, Medikamenten od.dgl. oder um Fußmatten, Bürstbänder, Polierbänder od. dgl. handeln.In the present context, 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. In particular, 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.
Üblicherweise sind bei solchen Borstenwaren die Borsten zu Bündeln oder größeren Paketen zusammengefaßt und in dieser Form an dem Borstenträger befestigt. Die Befesti¬ gung von Bündeln erfolgte früher auf mechanische Weise, indem ein Borstenbund geschlauft und mittels eines Ankers im Borstenträger befestigt wurde. Diese Art der Befesti- gung ist aufwendig und führt in manchen Anwendungsfällen, vor allem bei Hygienebürsten, zu unliebsamen Nebener¬ scheinungen, da die hierbei notwendigen Löcher im Bor¬ stenträger zur Anlagerung von Schmutz und Bakterien führen. Bei Bündeln größeren Durchmessers oder Borstenpa¬ keten, wie sie beispielsweise bei Pinseln notwendig sind, wurden die Bündel bzw. Pakete in einem Kitt- oder Kleb- stoffbett befestigt. Durch das Aufkommen von Kunststoff- borsten haben sich andere Möglichkeiten der Befestigung eröffnet, nämlich das Verschweißen der Bündel mit demIn the case of such bristle products, 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. In the case of bundles of larger diameter or bristle packages, as are necessary, for example, with brushes, the bundles or packages were fastened in a putty or adhesive bed. The emergence of plastic bristles has opened up other fastening options, namely welding the bundles to the
Träger oder das Eingießen der Bündelenden in das schmelz- flüssige Trägermaterial.Carrier or pouring the ends of the bundle into the molten carrier material.
Alle Verfahren, bei denen die Borstenbündel oder -pakete in eine mehr oder weniger flüssige Masse eingebettet und durch Aushärten derselben befestigt werden, haben den entscheidenden Nachteil, daß die Borsten nur unzureichend verankert sind. Es müssen deshalb die Bündel bzw. Pakete nach dem Aushärten der Masse ausgekämmt werden, um lose Borsten zu beseitigen. Selbst beim Gebrauch lösen sich immer noch einzelne Borsten, deren Auszugsfestigkeit nicht groß genug ist. Dies führt in vielen Anwendungsfäl¬ len, vor allem bei Pinseln, Auftragsbürsten od. dgl. zu unliebsamen Folgen, weil sich die gelösten Borsten in dem aufgetragenen Medium wiederfinden und dort nur mitAll methods in which the bundles or bundles of bristles are embedded in a more or less liquid mass and fastened by hardening them have the decisive disadvantage that the bristles are insufficiently anchored. The bundles or packages must therefore be combed out after the mass has hardened in order to remove loose bristles. Even when in use, individual bristles still come off, the pull-out strength of which is not high enough. In many applications, especially with brushes, application brushes or the like, this leads to unpleasant consequences because the loosened bristles can be found in the applied medium and only there
Schwierigkeiten zu beseitigen sind, ohne nicht Spuren zu hinterlassen. Bei Zahnbürsten kann dies zu außerordent¬ lich unbliebsamen Folgen führen, da sich solche gelösten Borsten häufig im Interdentalraum verklemmen und nur schwer zu beseitigen sind.Difficulties can be eliminated without leaving no trace. In the case of toothbrushes, this can lead to extremely inconvenient consequences, since such loosened bristles often jam in the interdental space and are difficult to remove.
Soweit Borstenträger und Borsten -wie heute weitgehend üblich- aus Kunststoffen bestehen und durch Schweißen miteinander verbunden werden, müssen sie aus dem gleichen Kunststoff oder solchen Werkstoffpaarungen bestehen, die miteinander soweit stoffschlüssig verschweißbar sind, daß eine ausreichende Fügefestigkeit gegeben ist. Diese Voraussetzung erfüllen nur wenige Werkstoffpaarungen und insbesondere solche nicht, die sehr unterschiedlicheInsofar as 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
Eigenschaften aufweisen. Gerade dies ist aber bei Bürsten häufig der Fall. So soll der Borstenträger, der üblicher¬ weise auch den Griff oder Stiel der Bürste bildet, in der Regel starr sein und aus einem preiswerten Kunststoff bestehen, während die Borsten aus einem hochwertigen Kunststoff mit vergleichsweise hoher Verschleißfestig¬ keit, gutem Biegevermögen und hoher Biegewechselfestig¬ keit bestehen müssen. Für den Borstenträger kommen des¬ halb in erster Linie Polyolefine, für die Borsten selbst hingegen Polyamide in Frage. Diese wie auch andere geeig¬ nete Kunststoffpaarungen lassen sich nicht oder nur schlecht verschweißen. Ähnliches gilt für das Eingießen der Borsten, da hier vornehmlich Oberflächen-Haftkräfte für die notwendige Auszugsfestigkeit sorgen müssen, während ein Stoffschluß nur in beschränktem Umfang ein¬ tritt . Hier müssen deshalb die Bündel an ihren Enden zu Verdickungen aufgeschmolzen werden, um einen zusätzlichen Kraftschluß in dem Träger zu erzeugen.Have properties. But this is precisely the case with brushes. Thus, 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. For 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 same applies to 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. Here, therefore, the bundles have to be melted at their ends to form a thickening in order to create an additional frictional connection in the carrier.
Daneben sind Borstenwaren bekannt, bei denen der Borsten¬ besatz neben Borstenbündeln auch einzeln stehende Borsten aufweist oder vollständig aus solchen Einzelborsten besteht. So beschreibt die EP 0 165 546 AI eine Zahnbür¬ ste, deren Besatz teils aus Borstenbündeln, teils aus Einzelborsten besteht. Die Einzelborsten sind flächen¬ deckend angeordnet und -wie die Bündel- durch Schweißen an dem Borstenträger aus Kunststoff befestigt. Dies setzt, wie bereits angedeutet, bestimmte Materialpaarun¬ gen voraus und erfordert in der Regel für den Träger in Anpassung an die Borsten einen viel zu teueren Kunst¬ stoff. Hinzukommt, daß Borsten ihre Stabilität und ihr Biegevermögen, wie vor allem auch ihre Dauerbiegeelasti¬ zität dadurch erhalten, daß die extrudierten Monofile verstreckt bzw. gereckt und anschließend in der Regel auch noch thermisch stabilisiert werden, um eine moleku¬ lare Längsorientierung zu erhalten. Diese molekulare Orientierung geht verloren, sobald die Borste mit erhöh¬ ter Temperatur beaufschlagt wird. Beim Schweißen werden folglich die befestigungsseitigen Enden der Borste ge¬ schädigt . Die Borste verliert ihre Biegeelastizität und damit ihr Wiederaufrichtvermögen. Ähnliches gilt für das Einspritzen der Borstenbündel in die schmelzflüssige Kunststoffmasse des Borstenkörpers, wobei auch hier gleiche Kunststoffe für den Träger und die Borsten em¬ pfohlen werden (DE 895 140, 900 809) .In addition, bristle products are known in which the bristle stock has bristle bundles as well as standing bristles or consists entirely of such individual bristles. For example, 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. In addition, 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 same applies to the injection of the bristle bundles into the molten plastic mass of the bristle body, the same plastics being recommended here for the carrier and the bristles (DE 895 140, 900 809).
Bei einer weiteren bekannten Zahnbürste nach der US 4 592 594 werden die Einzelborsten zu einem den gesamten Bor- stenbesatz bildenden Paket zusammengefaßt und in einen rahmenartigen Träger eingesetzt. Die Borsten werden entlang ihrer umfangsseitigen Berührungsflächen miteinan¬ der verschweißt. Neben der möglichen Schädigung der Borsten ist bei dieser Ausführung die Auszugsfestigkeit der Borsten unzureichend, da die Berührungsfläche bei kreisrundem Borstenquerschnitt praktisch nur linienformig und die Borsten folglich nur entlang vier solcher linien- förmiger Berührungsflächen miteinander verbunden sind.In another known toothbrush according to US Pat. No. 4,592,594, 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. In addition to the possible damage to the bristles, 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.
Bei Pinseln ist weiterhin bekannt (DE 1 050 304 A, US 2 664 316) , das gesamte Borstenpaket am befestigungsseiti¬ gen Ende aufzuschmelzen und zu einer plattenförmigen Verdickung umzuformen, die zur Halterung des Borstenpaket im Träger dient. Weiterhin ist es bekannt (DE 812 304 B) , das Borstenpaket in die flüssige Kunststoffmasse des Trägers einzugießen. Vor allem bei der erstgenannten Ausführung kommt es zu der bereits geschilderten Schädi¬ gung am Borstenfuß. Für Pinsel sind diese Verfahren vor allem aber aus anwendungstechnischen Gründen ungeeignet, weil die Borsten eng gepackt sind und der Pinsel zu wenig Speicherraum zur Aufnahme der Auftragsmedien besitzt. Solche Speicherräume werden bei Pinseln üblicherweise durch Einlagen od. dgl. verwirklicht (DE 92 06 072 Ul, DE 30 25 010 AI) , welche innerhalb der Befestigungszone vorgesehen sind und die Borsten in diesem Bereich seit¬ lich verdrängen, um im unmittelbaren Anschluß an die Einlage kammerartige Freiräume zu schaffen, die das Auftragsmedium aufnehmen und beim Andruck des Pinsels und Umlegen der Borsten freigeben. Diese Kammern sind wesent¬ liche Voraussetzung für einen gleichmäßigen Auftrag, wie auch dafür, daß mit einem Pinselstrich eine ausreichend große Fläche abgedeckt werden kann. Dies ist bei Kunst¬ stoffborsten besonders wichtig, weil sie gegenüber Natur- borsten ein schlechteres Haltevermögen für das Auftrags- medium besitzen. Dabei ist ferner zu berücksichtigen, daß bei allen Bürsten und Pinseln, mit denen Medien auf eine Oberfläche übertragen werden sollen, diese Auftragsmedien sehr unterschiedliche Viskositäten besitzen. Dies gilt selbst bei Zahnbürsten, mit denen sowohl pastenförmige, als auch gelartige Zahnpflegemittel aufgenommen und verteilt werden müssen. Dies hat zur Folge, daß aus anwendungstechnischer Sicht Bürsten oder Pinsel stets nur bei Auftragsmedien mit einem bestimmten Viskositätsbe- reich optimale Ergebnisse liefern, bei anderen Auftrags- medien hingegen nur mangelhaft arbeiten. Dies zwingt gerade bei Pinseln dazu, ein großes Sortiment vorzuhalten und hierfür die fertigungstechnischen Voraussetzungen zu schaffen. Es hat deshalb nicht an Versuchen gefehlt, Borsten in Solitär-Anordnung am Borstenträger zu befestigen. Neben dem eingangs genannten, aus Werkstofftechnologischen Gründen aber untauglichen Verschweißen (EP 0 165 546) ist es bekannt (DE 44 10 236) , Borstenmonofile zu Schlaufen und im Bereich der Schlaufen durch Schuß- und Kettfäden reihenartig vorzufixieren und anschließend im Bereich der Fixierung mit plastischem Material zu vergießen. Dieses Verfahren ist außerordentlich aufwendig und führt stets zu einer relativ offenen Struktur des Borstenbesatzes. Weiterhin ist es bei Sonderborsten größeren Durchmessers bekannt (EP 0 292 693) , die Borsten mit dem Träger zu verschweißen oder wiederum zu Schlaufen und mechanisch mittels eines Ankers im Borstenträger zu befestigen. Die Nachteile beider Befestigungsarten sind bereits erläu¬ tert. Schließlich ist es bekannt (GB 2 035 076 A) die Borsten in Form von Stiften zu spritzen und am Träger zu befestigen oder aber zusammen mit dem Träger in einer Spritzgießform herzustellen (US 3 583 019, CH 661 851In the case of brushes, it is also known (DE 1 050 304 A, US 2 664 316) to melt the entire bristle pack at the end on the fastening side and to form it into a plate-shaped thickening which is used to hold the bristle pack in the carrier. Furthermore, it is known (DE 812 304 B) pour the bristle pack into the liquid plastic mass of the carrier. Especially in the case of the first-mentioned embodiment, the damage to the bristle base already described occurs. For brushes, however, these processes are unsuitable primarily for technical reasons, because the bristles are tightly packed and the brush does not have enough storage space to hold the application media. In the case of brushes, such storage spaces are usually realized by inlays or the like (DE 92 06 072 Ul, DE 30 25 010 AI), which are provided within the fastening zone and displace the bristles in this area laterally in order to be connected directly to the Inlay to create chamber-like free spaces that accept the application medium and release it when the brush is pressed on and the bristles flipped over. These chambers are an essential prerequisite for a uniform application and also for the fact that a sufficiently large area can be covered with a brush stroke. This is particularly important in the case of plastic bristles because they have a poorer holding capacity for the application medium than natural bristles. It should also be borne in mind that with all brushes and brushes with which media are to be transferred to a surface, these application media have very different viscosities. This even applies to toothbrushes with which both paste-like and gel-like dentifrices have to be taken up and distributed. The consequence of this is that, from an application point of view, brushes or brushes always deliver optimal results only with application media with a certain viscosity range, but work poorly with other application media. With brushes in particular, this forces a large assortment to be kept and the manufacturing requirements to be created. There has therefore been no lack of attempts to attach bristles in a solitary arrangement to the bristle carrier. In addition to the welding mentioned at the beginning, which is unsuitable for reasons of material technology (EP 0 165 546), it is known (DE 44 10 236) to pre-fix bristle monofilaments in rows and in the area of the loops by means of weft and warp threads and then in the area of fixing with plastic Shedding material. This process is extremely complex and always leads to a relatively open structure of the bristle stock. Furthermore, it is known in the case of special bristles of larger diameter (EP 0 292 693) to weld the bristles to the carrier or in turn to form loops and to mechanically fasten them in the bristle carrier by means of an anchor. The disadvantages of both types of fastening have already been explained. Finally, it is known (GB 2 035 076 A) to spray the bristles in the form of pins and to fasten them to the carrier, or else to produce them together with the carrier in an injection mold (US Pat. No. 3,583,019, CH 661 851
A5) . In diesen Fällen handelt es sich nicht um Borsten im eigentlichen Sinne, sondern um stiftartige Gebilde von relativ großem Durchmesser, die zwangsläufig ein völlig unzureichendes Rückhaltevermögen für Auftragsmedien besitzen und deshalb nur zum Ausbürsten, z.B. für Haar¬ bürsten od. dgl. geeignet sind.A5). In these cases, they are not bristles in the actual sense, but rather pin-like structures of relatively large diameter, which inevitably have a completely inadequate retention capacity for application media and are therefore only suitable for brushing, e.g. are suitable for hair brushes or the like.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren vorzuschlagen, mit dem Borstenwaren mit einzeln stehenden Borsten aus Kunststoff hergestellt werden können, bei denen die Borsten definierte und vorbestimmbare Abstände unter Anpassung an das jeweilige Auftragsmedium und den Verwendungszweck der Borstenware aufweisen. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, -daßThe 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
die einzelnen Borsten mit ihren befestigungsseitigen Enden voraus in je ein Loch einer Lochschablone, deren Lochdurchmesser wenig größer als der einer einzelnen Borste ist und deren Lochmuster der Posi¬ tionierung der Borsten innerhalb des Borstenbesatzes oder eines Teils desselben entspricht, soweit einge¬ führt werden, daßthe 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
ihre befestigungsseitigen Enden an der gegenüberlie¬ genden Seite der Lochschablone etwa gleich weit überstehen,their fastening-side ends protrude approximately equally far on the opposite side of the perforated template,
- die Borsten anschließend gegen axiale und radiale- The bristles then against axial and radial
Verlagerung in der Lochschablone eingespannt werden,Displacement can be clamped in the hole template,
zumindest an der befestigungsseitigen Oberfläche des Borstenträgers ein Bett aus einem flüssigen, aus- härtbaren Werkstoff vorbereitet wird,a bed made of a liquid, curable material is prepared at least on the fastening-side surface of the bristle carrier,
die Borsten mit ihren in das Bett eingetauchten befestigungsseitigen Enden von dem flüssigen Werk¬ stoff umflossen werden,the liquid material flows around the bristles with their fastening-side ends immersed in the bed,
abschließend das Bett ausgehärtet wird.finally the bed is cured.
Bei dem erfindungsgemäßen Verfahren werden die Borsten einzeln dem Fertigungsprozeß zugeführt, und zwar in einer solchen Anordnung zueinander, die ihrer späteren Positio¬ nierung im Rahmen des Borstenbesatzes entspricht. Dies gelingt mit der Lochschablone, deren Löcher deckungs¬ gleich mit der Position der einzelnen Borsten innerhalb des Besatzes angeordnet sind und somit die Borsten vor dem Befestigen positionieren. In dieser Vorpositionierung werden die Borsten eingespannt, so daß sie sich aus der Position weder radial, noch axial verlagern können. Zugleich oder zuvor wird zumindest an der befestigungs- seitigen Oberfläche des Borstenträgers ein Bett aus einem flüssigen, aushärtbaren Werkstoff vorbereitet. Die die Lochschablone überragenden und in das Bett eingetauchten befestigungsseitigen Enden der Borsten werden einzeln und vollständig von dem flüssigen Bettmaterial umflossen und nach dem Aushärten des Bettes fest eingebunden.In the method according to the invention, 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. At the same time or beforehand, 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.
Auf diese Weise lassen sich die Einzelborsten in defi¬ niertem Abstand voneinander und in vorbestimmter Anord¬ nung mit dem Borstenträger verbinden. Dabei ist es mög- lieh, jeden gewünschten Abstand der Borsten innerhalb des Borstenbesatzes, wie auch jede gewünschte Zuordnung der Borsten zueinander durch entsprechende Lochschablonen zu verwirklichen. Damit ist sichergestellt, daß die Borsten nicht eng gepackt einander anliegen, vielmehr werden definierte Kapillaren geschaffen. Dabei läßt sich jede beliebige Kapillarform durch die Zuordnung der Borsten und jeder beliebige Kapillarquerschnitt durch den Abstand der Borsten realisieren. Damit ist eine optimale Anpas¬ sung an den Verwendungszweck der solchermaßen hergestell- ten Borstenware möglich, insbesondere läßt sich die vorgenannte Geometrie auch an die jeweilige Viskosität des zu verarbeitenden Auftragsmediums anpassen. Für niedrig viskose Auftragsmedien wird man den Abstand enger wählen als für höher viskose Medien.In this way, 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.
Durch den definierten Abstand der Borsten ist vor allem sichergestellt, daß das befestigungsseitige Ende jeder einzelnen Borste in dem Bett voll umflossen und in das aushärtende Bettmaterial eingebettet wird. Jede Borste ist einwandfrei verankert und alle Borsten des Besatzes weisen die gleiche Auszugsfestigkeit aus. Ein Ausputzen des Borstenbesatzes ist nicht mehr notwendig, ein Lösen einzelner Borsten unmöglich. Zudem gewährleistet der definierte Abstand in anwendungstechnischer Hinsicht auch ein einwandfreies Reinigen des Borstenbesatzes durch Ausspülen. Dies ist insbesondere bei Hygienebürsten, Zahnbürsten und Pinseln von Bedeutung. Ferner kann der Borstenbesatz nach dem Gebrauch schnell austrocknen, um das Einnisten von Bakterien zu verhindern. Ferner werden die Gebrauchseigenschaften jeder Borste besser genutzt als bei einer bündel- oder paketweisen Anordnung, wo die innen liegenden Borsten durch die äußeren Borsten abge¬ stützt werden, infolgedessen ihr Biegevermögen gar nicht ausgenutzt werden kann. Andererseits werden die außen liegenden Borsten stärker beansprucht mit der Folge, daß sie auch schneller verformt oder in anderer Weise un¬ brauchbar werden, während bei einem Borstenbesatz aus einzeln stehenden, distanzierten Borsten jede Borste ihre Wirkung entfalten kann und alle Borsten im wesentlichen in gleicher Weise beansprucht sind, so daß die Lebensdau¬ er gesteigert werden kann, da es nicht frühzeitig zum Ausfall einzelner Borsten kommt .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. In addition, the defined distance ensures that the bristle trimmings can be cleaned properly by rinsing. This is particularly important for hygiene brushes, toothbrushes and brushes. Furthermore, the bristle stock can dry out quickly after use to prevent bacterial nesting. Furthermore, the use properties of each bristle are 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. On the other hand, 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.
Vorzugsweise werden die Borsten mittels der Lochschablone selbst in das Bett aus dem flüssigen Werkstoff einge¬ taucht. Stattdessen kann natürlich auch das Bett gegen die feststehenden Lochschablone verfahren werden.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.
In weiterhin bevorzugter Ausgestaltung ist vorgesehen, daß die Eintauchtiefe der befestigungsseitigen Enden der Borsten dadurch vorbestimmt wird, daß die Lochschablone mit den eingespannten Borsten auf einem einstellbaren Weg verfahren wird. - 10 -In a further preferred embodiment it is provided that 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. - 10 -
Auf diese Weise kann die gewünschte bzw. notwendige Einbettungslänge der Borsten und damit deren Auszugs- feεtigkeit exakt und reproduzierbar vorbestimmt werden.In this way, the desired or necessary embedding length of the bristles and thus their pull-out strength can be predetermined precisely and reproducibly.
Die einzelnen Borsten können als Endlosmonofile der Lochschablone zugeführt und in diese eingezogen werden. Nach dem Fixieren der Endlosmonofile in der Lochschablone können die Borsten an der Zuführseite der Lochschablone auf Wunschmaß von den Endlosmonofilen abgelängt werden. Das Ablängen kann natürlich auch erst nach dem Aushärten des Bettes erfolgen.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.
Die Endlosmonofile können jeweils einzeln oder zu mehre- ren auf einer Spule bevorratet und von dieser abgezogen werden. Sofern auf einer Spule mehrere Monofile bevorra¬ tet sind, werden sie vor dem Zuführen zu der Lochschablo¬ ne vereinzelt. Stattdessen können die Borsten auch von längeren Monofilabschnitten oder aber auch auf Länge geschnitten verarbeitet werden.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.
Die Erfindung gibt damit auch die Möglichkeit, Borsten aus unterschiedlichem Werkstoff, mit unterschiedlichen Durchmessern und/oder Querschnitten (kreisrund, polygonal od. dgl.) , wie auch unterschiedlicher Oberflächenstruktur (glatt, aufgerauht, beflockt etc.) problemlos zu verar¬ beiten. Insbesondere strukturierte oder polygonale Bor¬ sten lassen sich bündelweise nur sehr schlecht verarbei¬ ten bzw. führen im Bündel zu unkontrollierten Kapillar- räumen. Auch hier werden mit der Erfindung definierte Verhältnisse geschaffen.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. Here too, defined relationships are created with the invention.
Die Erfindung gibt weiterhin die Möglichkeit, daß inner¬ halb des Borstenbesatzes borstenlose Freiräume dadurch erzeugt werden, daß Borsten nur in diejenigen Löcher der Lochschablone eingeführt werden, die deckungsgleich mit Borstenpositionen im Borstenbesatz sind.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.
Auf diese Weise können innerhalb des BorstenbesatzesIn this way, inside the bristle trim
Kapillaren größeren Querschnittes oder sogar kammerartige Freiräume erhalten werden, um Speicherräume beliebigen Querschnittes zu schaffen. Damit ist es weiterhin mög¬ lich, mit einer einzigen Lochschablone einen Borstenbe- satz mit unterschiedlichen Borstenabständen, solange sie in dem Abstandsraster im Lochmuster der Schablone liegen, herzustellen.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.
Stattdessen kann die Lochschablone in den Bereichen, in denen der Borstenbesatz größere Lücken aufweist, auch geschlossen sein.Instead, the perforated template can also be closed in the areas in which the bristle trim has larger gaps.
Die Erfindung gibt weiterhin die Möglichkeit, einen Borstenbesatz aus einzeln stehenden Borsten und in Bün- dein angeordneten Borsten herzustellen, indem die einzel¬ nen Borsten und die zu Bündeln zusammengefaßten Borsten zugleich in eine Lochschablone, deren Lochmuster der Positionierung der Einzelborsten und der Borstenbündel innerhalb des Borstenbesatzes entspricht, soweit einge- führt werden, daß die befestigungsseitigen Enden der Einzelborsten und der Bündel an der gegenüberliegenden Seite der Lochschablone überstehen. Es werden dann die Einzelborsten und die Bündel gleichzeitig in das Bett eingetaucht und im übrigen wie zuvor verfahren. Auf diese Weise lassen sich Borstenwaren mit definiert unterschied¬ lich wirkenden Bürstflächen schaffen.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.
Das Bett am Borstenträger kann ein flüssiger Klebstoff, ein kalt oder bei mäßiger Temperatur polymerisierender Kunststoff oder auch von dem aufgeschmolzenen Borstenträ¬ ger selbst oder dessen aufgeschmolzener Oberfläche gebil¬ det werden. Je nach Materialpaarung von Borste und Bett kommt es zu einem kraft- und/oder stoffschlüssigen Ver- bund.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.
Die Auszugsfestigkeit der einzelnen Borste kann noch dadurch erhöht werden, daß die Einzelborsten nach dem Einführen in die Lochschablone an ihren überstehenden, befestigungsseitigen Enden oberflächig strukturiert oder thermisch oder mechanisch verformt und anschließend in das Bett eingetaucht werden, so daß zusätzlich eine Art Formschluß gegeben ist.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.
In einer weiteren Ausführung des Verfahrens ist vorgese¬ hen, daß die Borsten nach dem Einführen in die Lochscha¬ blone oder in eine dieser vorgeschaltete, gleichartige Lochschablone eingespannt und an ihren den befestigungs¬ seitigen Enden gegenüberliegenden Enden plan geschnitten werden und diese Enden anschließend in eine von ihrer ebenen Schnittfläche abweichende Form bearbeitet, z.B. verrundet werden. Erst daraufhin werden die Borsten mit den befestigungsseitigen Enden mittels der Lochschablone in das Bett eingetaucht.In a further embodiment of the method it is provided that 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.
Durch die einwandfreie distanzierte Anordnung kann die Bearbeitung der nutzungsseitigen Enden der Borsten in optimaler Weise erfolgen, und zwar auf mechanische Weise, beispielsweise durch Schleifen, durch chemische Behand- lung oder durch thermische Behandlung z.B. mittels Laser¬ strahlen. Gerade bei der letztgenannten Methode kommen die Vorteile der distanzierten Anordnung der Einzelbor¬ sten in besonderer Weise zur Geltung. Die Laserbearbei¬ tung der Borstenenden zum Zwecke des Verrundens ist zwar bekannt. Die Methode versagt jedoch bei bündelweise angeordneten Borsten, da die Borstenenden innerhalb des Bündels unterschiedliche Abstände aufweisen und deshalb nicht exakt angesteuert werden können mit dem Ergebnis, daß ein Teil der Borsten miteinander verschweißt . Durch die einwandfrei distanzierte und reproduzierbare Anord¬ nung der Borstenenden beim erfindungsgemäßen Verfahren ist die Ansteuerung der Borstenenden mit der Laserquelle exakt möglich.Due to the flawlessly spaced arrangement, 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. However, 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.
In weiterer Ausgestaltung des Verfahrens ist vorgesehen, daß die Borsten nach dem Bearbeiten der Enden aus der Einspannung gelöst und durch unterschiedliches axiales Verschieben mit ihren bearbeiteten Enden in eine von der Schnittebene abweichende, gekrümmte Hüllfläche verlagert, anschließend an den befestigungsseitigen Enden plan geschnitten und daraufhin in das Bett eingetaucht werden.In a further embodiment of the method, it is provided that 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.
Mit dieser Verfahrensvariante ist es möglich, die nutzungsseitigen Enden der Borsten innerhalb des Borsten¬ besatzes in einer beliebigen Topographie anzuordnen. Bei Pinseln hat dies den Vorteil, daß für einen Pinselbesatz eine konisch zulaufende Form erhalten werden kann. Ähn¬ liche Vorteile ergeben sich bei Zahnbürsten, indem kegel- förmige Profile erzeugt werden können, so daß die läng¬ sten Borsten in die Zahnzwischenräume wirksam eingreifen können, während die kürzeren Borsten die Zahnoberfläche reinigen.With this method variant, it is possible to arrange the ends of the bristles on the use side within the bristle stocking in any topography. With brushes, this has the advantage that a conically tapering shape can be obtained for a brush. Similar advantages result in toothbrushes in that conical profiles can be produced so that the longest bristles can effectively engage in the interdental spaces, while the shorter bristles clean the tooth surface.
Nachstehend ist die Erfindung anhand der Zeichnung be¬ schrieben. In der Zeichnung zeigen:The invention is described below with reference to the drawing. The drawing shows:
Figur 1 eine schematische Ansicht einerFigure 1 is a schematic view of a
Anlage zur Durchführung des Verfah- rens in einer ersten Verfahrensstufe,-System for carrying out the procedure rens in a first process stage,
Figur la eine Draufsicht auf eine Ausführungs- form der Lochschablone;Figure la is a plan view of an embodiment of the hole template;
Figur 2 die Anlage gemäß Figur 1 in einer weiteren Verfahrensstufe;Figure 2 shows the system of Figure 1 in a further process stage;
Figur 2a eine Draufsicht auf die fertigeFigure 2a is a plan view of the finished
Borstenware;Bristleware;
Figur 3a-c eine Ausführungsform einer pinselar- tigen Borstenware im Längsschnitt,3a-c show an embodiment of a brush-like bristle product in longitudinal section,
Querschnitt und in Seitenansicht;Cross-section and in side view;
Figur 4a-c eine gegenüber Figur 4 abgewandelteFigure 4a-c modified from Figure 4
Ausführung in den gleichen drei Ansichten,Execution in the same three views,
Figur 5a, b eine Ausführungsform in Gestalt einerFigure 5a, b an embodiment in the form of a
Zahnbürste in Seitenansicht undSide view and toothbrush
Draufsicht undTop view and
Figur 6 eine Draufsicht auf eine andereFigure 6 is a plan view of another
Ausführungsform der Lochschablone mit eingeführten Borsten.Embodiment of the perforated template with inserted bristles.
Anhand der Ausführungsform der Figuren 1 und 2 wird die Herstellung eines Pinsels beschrieben. Der Pinsel weist einen Griff 1 auf, der an seinem Kopf mit einer sogenann¬ ten Pinselzwinge 2 versehen ist, die eine Art Hülse bildet und den äußeren Umriß des Borstenbesatzes des Pinsels bestimmt. Innerhalb der Pinselzwinge 2 ist" ein Bett 3 aus einem flüssigen oder verflüssigbaren Werkstoff eingeschlossen. Der Griff 1, die Pinselzwinge 2 und das Bett 3 bilden gemeinsam den Borstenträger.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.
Der Griff 1 des Pinsels ist in der Fertigungsanlage in nicht näher dargestellter Weise positioniert.The handle 1 of the brush is positioned in the manufacturing system in a manner not shown.
An dem Borstenträger sind die Borsten 4 einzeln stehend zu befestigen. Bei dem in Figur 1 und 2 gezeigten Ausfüh¬ rungsbeispiel werden die Borsten als Endlosmonofile 5 von einer Spule 6 zugeführt. Das vorlaufende Ende der Endlos- monofile 5 wird in eine insgesamt mit 7 bezeichnete Lochschablone eingeführt und in diese eingezogen. Zu diesem Zweck ist die Lochschablone mehrteilig ausgeführt . Sie besteht aus drei deckungsgleichen Schablonenteilen 8, 9 und 10 und dazwischen angeordneten Klemmplatten 11, 12, die entsprechend den horizontalen Richtungspfeilen beweg¬ bar sind. Die Lochschablone 7 weist in ihren sämtlichen Bauteilen Löcher 13 auf, deren Durchmesser wenig größer ist als der Querschnitt der Einzelborsten 4. Ferner besitzt die Lochschablone 7 ein Lochmuster, das deckungs¬ gleich mit der Positionierung und Anordnung der Einzel- borsten 4 innerhalb des Borstenbesatzes des Pinsels ist . Dies ist auch in Figur la erkennbar, wo das Schablonen¬ teil 8 abgebrochen gezeigt und die darunter befindliche Klemmplatte 11 zu sehen ist .The bristles 4 are to be fastened individually standing on the bristle carrier. In the exemplary embodiment shown in FIGS. 1 and 2, 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. For this purpose, 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. Furthermore, 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.
Die Endlosmonofile 5 werden mit ihrem vorlaufenden Ende in die Lochschablone 7 eingezogen oder eingeschoben, bis die vorlaufenden Enden die Lochschablone 7 an der gegen¬ überliegenden Seite überragen. Sie bilden dann die be¬ festigungsseitigen Enden 14 der Einzelborsten 4. In dieser Position werden die Klemmplatte 11 und die Klemm- platte 12 in die Klemmposition (in der Zeichnung nach rechts) verschoben, so daß die Borsten axial und radial eingespannt sind. Anschließend wird die Lochschablone 9 mit den eingespannten Borsten in Richtung auf den Bor- stenträger bewegt, bis die befestigungsseitigen Enden 14 in das flüssige Bett 3 eintauchen. Zugleich tauchen auch das vordere Schablonenteil 10 und eine der Klemmplatten in die Pinselzwinge 2 ein, so daß diese zentrierend wirkt, während das Schablonenteil 9 auf der freien Stirn- seite der Pinselzwinge 2 aufsitzt und damit die Eintauch¬ tiefe der befestigungsseitigen Enden 14 im Bett 3 vorbe- stimmt.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. In this position, 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. At the same time, 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.
Anschließend werden die Borsten 11 an der Rückseite bzw. Oberseite der Lochschablone 7 durch ein querlaufendes Messer von den Endlosmonofilen 5 abgelängt.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.
Die Lochschablone 7 kann natürlich auch an einer anderen Position mit den Borsten gefüllt und mit dem vollständig vorbereiteten Borstenbesatz in die Position gemäß Figur 2 transportiert werden. Statt der Lochschablone kann auch der Borstenträger gegen die ortsfeste Schablone verfahren werden.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. Instead of the perforated template, the bristle holder can also be moved against the stationary template.
Nach dem Vorhärten bzw. Aushärten des Bettes 3 wird die Lochschablone zurückgefahren, so daß der fertige Pinsel gemäß Figur 20 entnommen und der nächste Borstenträger in die Fertigungsposition gebracht und die Monofile 5 wiede¬ rum um eine Borstenlänge nachgezogen werden können.After the pre-hardening or hardening of the bed 3, 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.
Wie aus der unteren Darstellung der Figur 2 und 2a er¬ sichtlich, befinden sich die Einzelborsten 4 in einem definierten Abstand voneinander, der aus Gründen der besseren Übersicht im oberen Teil der Darstellung ver- größert wiedergegeben ist. Es ist ohne weiteres erkenn¬ bar, daß bei einer Beschickung nicht aller Löcher 13 der Lochschablone 7 innerhalb des Borstenbesatzes auch größe¬ re Lücken erzeugt werden können, die als Speicherraum für ein Auftragsmedium dienen können.As can be seen from the lower illustration in FIGS. 2 and 2a, 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.
In Figur 3 ist eine Ausführungsform einer pinselartigen Borstenware gezeigt. In Figur 4a ist der Borstenträger 15 erkennbar, der an seiner befestigungsseitigen Oberfläche das aushärtende Bettungsmaterial aufweist. Die Einzelbor¬ sten 16 sind äquidistant angeordnet und eingebettet, weisen aber, wie Figur 3c zeigt, unterschiedliche Länge auf, so daß die Borsten zu ihrem freien Ende hin auch ein unterschiedliches Biegeverhalten zeigen und zudem zwischen den kürzeren und den längeren BorstenendenFIG. 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
Speicherräume geschaffen werden, wie dies insbesondere aus Figur lc erkennbar ist . Die Borstenenden liegen also in einer gekrümmten Hüllfläche.Storage spaces are created, as can be seen in particular from Figure lc. The bristle ends therefore lie in a curved envelope surface.
Die Herstellung erfolgt in der Weise, daß die in der Lochschablone 7 eingespannten Borsten an ihrer den be¬ festigungsseitigen Enden 14 gegenüberliegenden Enden zunächst plan geschnitten und anschließend an diesen Enden bearbeitet werden, so daß sie beispielsweise sphä- risch gekrümmte, verrundete Spitzen 17 erhalten. An¬ schließend werden die Borsten entsprechend der gewünsch¬ ten Topographie nach Lösen der Klemmplatten 11, 12 axial in unterschiedlichem Ausmaß verschoben. Die an der gegen¬ überliegenden Seite mit ungleicher Länge vorstehenden Borsten werden anschließend plan geschnitten. Danach werden die Einzelborsten 16 mit ihrem über die Lochschab¬ lone 7 überstehenden Enden in das Bett 3 (Figur 1) einge¬ taucht und befestigt. Figur 4 zeigt eine abgewandelte Ausführungsform, bei der in der Längsmittelebene des Borstenbesatzes einzelne Löcher der Lochschablone nicht beschickt werden oder aber die Lochschablone dort geschlossen ist, so daß innerhalb des Borstenbesatzes kammerartige Freiräume 18 entstehen, die als Speicherraum für das Auftragsmedium dienen kön¬ nen.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.
Figur 5 zeigt eine Zahnbürste mit einem den Borstenträger bildenden Bürstenkopf 19. Der gesammte Borstenbesatz ist aus einzeln stehenden Borsten 20 gebildet, die mit glei¬ chem Abstand voneinander und die Oberfläche des Bürsten¬ kopfs 19 weitgehend ausfüllend am Bürstenkopf 19 be¬ festigt sind. Die Enden 21 der Einzelborsten 20 sind wiederum domartig verrundet . Zudem liegen die Borstenen¬ den 21 auf einer Hüllfläche mit einer Art Wellenprofil, wobei in Querrichtung (senkrecht zur Zeichenebene) durch¬ laufende Wellentäler und Wellenberge entstehen.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. In addition, 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).
Es ist ohne weiteres ersichtlich, daß das erfindungsge¬ mäße Verfahren die Herstellung beliebiger Borstenanord¬ nungen innerhalb eines Borstenbesatzes und damit eine Anpassung einer Borstenware an den jeweiligen Anwendungs- zweck in optimaler Weise gestattet. So zeigt Figur 6 nur beispielhaft eine Lochblende 7, mit der es möglich ist, neben einzeln stehenden Borsten 4, die in ensprechenden Löchern geführt und eingespannt sind, auch Bündel 21 mit dicht an dicht liegenden Borsten in entsprechend größeren Löchern zu führen. It is readily apparent that the method according to the invention allows the production of any bristle arrangement within a bristle stock and thus an adaptation of a bristle product to the respective application in an optimal manner. For example, 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.

Claims

Patentansprüche claims
1. Verfahren zur Herstellung von Borstenwaren mit einem Borstenträger und einem Borstenbesatz aus einzeln stehenden Borsten aus Kunststoff, dadurch gekenn- zeichnet, daß die einzelnen Borsten mit ihren be¬ festigungsseitigen Enden voraus in je ein Loch einer Lochschablone, deren Lochdurchmesser wenig größer als der einer einzelnen Borste ist und deren Loch¬ muster der Positionierung der Borsten innerhalb des Borstenbesatzes oder eines Teils desselben ent¬ spricht, soweit eingeführt werden, daß ihre befesti¬ gungsseitigen Enden an der gegenüberliegenden Seite der Lochschablone etwa gleich weit überstehen, daß die Borsten anschließend gegen axiale und radiale Verlagerung in der Lochschablone eingespannt werden, daß zumindest an der befestigungsseitigen Oberfläche des Borstenträgers ein Bett aus einem flüssigen aushärtbaren Werkstoff vorbereitet wird und daß die Borsten mit ihren in das Bett eingetauchten befesti- gungsseitigen Enden von dem flüssigen Werkstoff umflossen werden und abschließend das Bett ausgehär- tet wird.1. Process for the production of bristle goods with a bristle carrier and a bristle stock made of individually standing bristles made of plastic, characterized in that the individual bristles, with their ends on the fastening side, each advance into a hole in a perforated template, the hole diameter of which is slightly larger than that of one is individual bristle and their perforation pattern corresponds to the positioning of the bristles within the bristle stock or part thereof, insofar as they are introduced so that their fastening-side ends on the opposite side of the perforated template protrude approximately the same distance so that the bristles subsequently against axial and radial displacement are clamped in the perforated template, so that a bed made of a liquid hardenable material is prepared at least on the fastening-side surface of the bristle carrier and that the bristles with their fastening-side ends immersed in the bed flow around the liquid material and then cure the bed is tested.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Borsten mit ihren befestigungsseitigen Enden mittels der Lochschablone in das Bett aus dem flüs¬ sigen Werkstoff eingetaucht werden.2. The method according to claim 1, characterized in that the bristles are immersed with their fastening-side ends by means of the perforated template in the bed made of the liquid material.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekenn¬ zeichnet, daß die Eintauchtiefe der befestigungssei- tigen Enden der Borsten dadurch vorbestimmt wird, daß die Lochschablone mit den eingespannten Borsten auf einem einstellbaren Weg verfahren wird.3. The method according to claim 1 or 2, characterized gekenn¬ characterized in that the immersion depth of the attachment-side ends of the bristles is predetermined in that the perforated template is moved with the clamped bristles in an adjustable way.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die einzelnen Borsten als End¬ losmonofile der Lochschablone zugeführt und in diese eingezogen werden, und daß nach dem Fixieren der Endlosmonofile in der Lochschablone, die Borsten an der Zuführseite der Lochschablone auf Wunschmaß von den Endlosmonofilen abgelängt werden.4. The method according to any one of claims 1 to 3, characterized in that the individual bristles as End¬ losmonofile the perforated template are fed and drawn into this, and that after fixing the endless monofilaments in the perforated template, the bristles on the feed side of the perforated template The desired size can be cut to length from the endless monofilaments.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Borsten nach dem Aushärten des Bettes von den Endlosmonofilen abgelängt werden.5. The method according to any one of claims 1 to 4, characterized in that the bristles are cut to length by the endless monofilaments after the bed has hardened.
6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß innerhalb des Borstenbesatzes borstenlose Freiräume dadurch erzeugt werden, daß Borsten nur in die Löcher der Lochschablone einge- führt werden, die deckungsgleich mit Borstenpositio¬ nen im Borstenbesatz sind.6. The method according to any one of claims 1 to 5, characterized in that bristle-free spaces are created within the bristle trimmings in that bristles are only inserted into the holes in the perforated template, which are congruent with bristle positions in the bristle trimmings.
7. Verfahren nach einem der Ansprüche 1 bis 6 zur Herstellung von Borstenwaren, deren Borstenbesatz zusätzlich aus in Bündel angeordneten Borsten-be¬ steht, dadurch gekennzeichnet, daß die einzelnen Borsten und die zu Bündeln zusammengefaßten Borsten zugleich in eine Lochschablone, deren Lochmuster der Positionierung der Einzelborsten und der Borstenbün¬ del innerhalb des Borstenbesatzes entspricht, soweit eingeführt werden, daß die befestigungsseitigen Enden der Einzelborsten und der Bündel an der gegen¬ überliegenden Seite der Lochschablone überstehen, und daß die Einzelborsten und die Bündel gleichzei¬ tig in das Bett eingetaucht werden.7. The method according to any one of claims 1 to 6 for the production of bristle products, the bristle stocking additionally consists of bristles arranged in bundles, characterized in that the individual bristles and the bristles combined into bundles are simultaneously introduced into a perforated template, the hole pattern of which corresponds to the positioning of the individual bristles and the bristle bundle within the bristle stock, so that the attachment-side ends of the individual bristles and the bundles protrude on the opposite side of the perforated template, and that the individual bristles and the bundles are immersed in the bed at the same time.
8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Einzelborsten nach dem Einführen in die Lochschablone an ihren überstehen¬ den befestigungsseitigen Enden oberflächig struktu¬ riert oder thermisch oder mechanisch verformt und anschließend in das Bett eingetaucht werden.8. The method according to any one of claims 1 to 7, characterized in that the individual bristles after insertion into the perforated template at their protruding ends of the fastening ends are surface-structured or thermally or mechanically deformed and then immersed in the bed.
9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Borsten nach dem Einführen in die Lochschablone oder in eine dieser vorgeschal¬ tete gleichartige Lochschablone eingespannt und an ihren den befestigungsseitigen Enden gegenüberlie- genden Enden plan geschnitten werden, daß diese Enden der Borsten anschließend in eine von ihrer ebenen Schnittfläche abweichende Kontur bearbeitet und daraufhin die Borsten mit den befestigungsseiti¬ gen Enden mittels der Lochschablone in das Bett eingetaucht werden.9. The method according to any one of claims 1 to 8, characterized in that the bristles are clamped after insertion into the perforated template or in a similar perforated template upstream thereof and cut flat at their ends opposite the fastening-side ends, that these ends the bristles are then machined into a contour deviating from their flat cut surface and then the bristles with the ends on the fastening side are immersed in the bed by means of the perforated template.
10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß die Borsten nach dem Bearbeiten der Enden aus der Einspannung gelöst und durch unterschiedliches axiales Verschieben mit den bearbeiteten Enden in eine von der Schnittebene abweichende, gekrümmte Hüllfläche verlagert, anschließend an den befesti¬ gungsseitigen Enden plan geschnitten und daraufhin in das Bett eingetaucht werden. 10. The method according to claim 9, characterized in that the bristles after machining the ends released from the clamping and by different axially shifted with the machined ends into a curved envelope surface deviating from the cutting plane, then cut flat at the ends on the fastening side and then immersed in the bed.
EP97919381A 1996-04-23 1997-04-17 Method for the production of bristle goods Expired - Lifetime EP0895454B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19616112A DE19616112A1 (en) 1996-04-23 1996-04-23 Process for the production of bristle goods
DE19616112 1996-04-23
PCT/EP1997/001933 WO1997039649A1 (en) 1996-04-23 1997-04-17 Method for the production of bristle goods

Publications (2)

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

Family

ID=7792152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97919381A Expired - Lifetime EP0895454B1 (en) 1996-04-23 1997-04-17 Method for the production of bristle goods

Country Status (26)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3467451B2 (en) * 1999-06-25 2003-11-17 株式会社呉竹 Hair bundle
DE19932377A1 (en) * 1999-07-13 2001-02-08 Coronet Werke Gmbh Method and device for the production of brushes and brushes produced thereafter
CH694748A5 (en) * 2000-03-01 2005-07-15 Miodrag Mijatovic M Design Sa Brush entire image.
DE10046536A1 (en) * 2000-09-19 2002-03-28 Coronet Werke Gmbh Brushware-production method involves assembling single bristles or in groups on supports and structuring their ends by laser treatment.
DE102007006361B3 (en) * 2007-02-08 2008-09-04 Ki-Si-Co Gmbh Injection molded brush production, for a bottle top, feeds continuous bristle fiber material into the molding cavities for injection of a local bonding material and the holder
CN103181679B (en) * 2012-05-09 2015-07-08 福建新金誉工贸有限公司 Automatic bristle filling mechanism for paint brush head
DE102014104945B4 (en) * 2014-04-08 2016-03-03 Axel Stein Doormat with liquid storage
EP4154764A1 (en) * 2017-03-07 2023-03-29 Orkla House Care AB Paint brush comprising a bristle blend of three different types of bristles

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 (en) * 1983-11-16 1991-02-06 Anchor Advanced Products, Inc. Process for making a brush with self retention of bristles and brush made by the process
DE3820372C2 (en) 1988-06-15 1997-07-24 Coronet Werke Gmbh Method and device for producing bristle goods
DE4006325A1 (en) * 1990-03-01 1991-09-05 Schlerf Coronet Werke Brush bristle active end processing - clamps bristle tufts at distance from active end, cuts them to size, and grinds active ends
DE4027108A1 (en) * 1990-08-28 1992-03-05 Schlerf Coronet Werke METHOD FOR CONNECTING BRUSH BRUSHES TO A PLASTIC BRUSH SUPPORT AND DEVICE THEREFOR

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
ZA973400B (en) 1997-11-18
DE59701044D1 (en) 2000-02-24
HUP9903630A2 (en) 2000-02-28
CN1105525C (en) 2003-04-16
AU2387897A (en) 1997-11-12
TW374063B (en) 1999-11-11
JP2000508566A (en) 2000-07-11
CO4930322A1 (en) 2000-06-27
DK0895454T3 (en) 2000-07-03
ATE188852T1 (en) 2000-02-15
AR006787A1 (en) 1999-09-29
CZ339298A3 (en) 1999-03-17
GR3033263T3 (en) 2000-09-29
PL329513A1 (en) 1999-03-29
WO1997039649A1 (en) 1997-10-30
HUP9903630A3 (en) 2000-06-28
NO984905L (en) 1998-12-22
DE19616112A1 (en) 1997-10-30
CA2251929C (en) 2005-04-05
NZ332500A (en) 2000-01-28
BR9708740A (en) 1999-08-03
CZ291927B6 (en) 2003-06-18
PT895454E (en) 2000-06-30
PL185745B1 (en) 2003-07-31
NO314976B1 (en) 2003-06-23
CN1216450A (en) 1999-05-12
IN190448B (en) 2003-07-26
EP0895454B1 (en) 2000-01-19
ES2142155T3 (en) 2000-04-01
AU710801B2 (en) 1999-09-30
CA2251929A1 (en) 1997-10-30
HU220683B1 (en) 2002-04-29
RU2197160C2 (en) 2003-01-27
UA55410C2 (en) 2003-04-15
US6220672B1 (en) 2001-04-24
NO984905D0 (en) 1998-10-21

Similar Documents

Publication Publication Date Title
EP0165546B1 (en) Tooth-brush
EP2130454B1 (en) Method to produce anchorless bristled tooth brushes
EP0813374B1 (en) Article with bristles, such as brush, paint brush or the like
EP0150785B1 (en) Method for binding bristles on a bristle carrier
DE3717475C2 (en)
EP3831242B1 (en) Toothbrush with injection-moulded bristles
DE60123162T2 (en) Applicator with untwisted core
EP1776893B1 (en) Brush head and method for its production
EP1864588B1 (en) Tooth brush and method for its production
EP1158880A1 (en) Method and device for producing brushware and brushware obtained with same
DE10033256A1 (en) Method and device for producing bristle goods and bristle goods
EP1423027B1 (en) Method for providing a brush carrier of a toothbrush with tufts of individual bristles
EP1110479B1 (en) Process for joining bristle bundles for brushes to a carrier made of thermoplastic material
WO2003079849A1 (en) Bristles, method and device for production thereof and brushes
EP0883358B1 (en) Method of producing bristled articles, in particular brushes
EP0895454B1 (en) Method for the production of bristle goods
DE10163729A1 (en) Toothbrush manufacturing process involves melting plastic brush head around holes where bristles anchors are inserted to form a firm connection between head and bristles
DE19515294A1 (en) Machine making toothbrush(es) which separates injection moulding from bristle preparation
DE3518120C2 (en) Process for the production of bristle goods
DE2840833A1 (en) Brush with reinforcing ribs and rim on plastics back - has tufts of polyolefin or nylon and/or natural bristles heat-sealed into back
DE102010035667A1 (en) Device for preparing bristle bundles for use in brush manufacturing machine for manufacturing brushes or brooms, has molding channel with cross section area to guiding end, where area is same as cross section area of channel to exit end
DE10017465B4 (en) Method and device for producing bristle articles
DE102020106678A1 (en) Brush and method of making this brush
EP4032432A2 (en) Method of manufacturing brushes and brush manufacturing device
DE102019132194A1 (en) Brush reworking device and method for reworking brushes

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19981014

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19990531

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

REF Corresponds to:

Ref document number: 188852

Country of ref document: AT

Date of ref document: 20000215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59701044

Country of ref document: DE

Date of ref document: 20000224

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: TROESCH SCHEIDEGGER WERNER AG

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2142155

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20000315

ITF It: translation for a ep patent filed

Owner name: RACHELI & C. S.R.L.

ET Fr: translation filed
REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20000324

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20040406

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050417

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20070412

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20070413

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20070417

Year of fee payment: 11

Ref country code: NL

Payment date: 20070417

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20070419

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20070424

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20070425

Year of fee payment: 11

Ref country code: DK

Payment date: 20070425

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070411

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070608

Year of fee payment: 11

Ref country code: BE

Payment date: 20070419

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070425

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20070430

Year of fee payment: 11

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20081017

BERE Be: lapsed

Owner name: *CORONET-WERKE G.M.B.H.

Effective date: 20080430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080417

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20081101

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081017

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081101

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20081231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080417

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080430

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080430

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081101

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070424

Year of fee payment: 11

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20080418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081104

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080418