EP2224830B1 - Bristle and method for producing a bristle - Google Patents

Bristle and method for producing a bristle Download PDF

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Publication number
EP2224830B1
EP2224830B1 EP08867711.7A EP08867711A EP2224830B1 EP 2224830 B1 EP2224830 B1 EP 2224830B1 EP 08867711 A EP08867711 A EP 08867711A EP 2224830 B1 EP2224830 B1 EP 2224830B1
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EP
European Patent Office
Prior art keywords
bristle
mold
head
shaft
foot
Prior art date
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Application number
EP08867711.7A
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German (de)
French (fr)
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EP2224830A2 (en
Inventor
Katja Honnefeller
Jürgen SENG
Michael Klöppel-Riech
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Braun GmbH
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Braun GmbH
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Publication of EP2224830A2 publication Critical patent/EP2224830A2/en
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    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • 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
    • A46B3/20—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier the bristles being fixed or joined in rubber bodies, e.g. in soft rubber
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0253—Bristles having a shape which is not a straight line, e.g. curved, "S", hook, loop
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0284—Bristles having rounded ends
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/102—Brush specifically designed for massaging the skin or scalp
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/104—Hair brush

Definitions

  • the invention relates to a hairbrush, bristles for use in a hairbrush, and methods of making a hairbrush and such bristles.
  • the invention can be used in a variety of very different hairbrushes. It is even contemplated that the bristles described herein may be used in brushes that are not or not primarily used for brushing the hair. In particular, it is also considered that the bristles are used in a massage brush. Likewise, their use in a hair care device into consideration, which additionally warms the hair, such as through warm air or a warm contact surface. Corresponding devices are marketed as so-called stylers or curlers.
  • the GB 601,371 discloses a hairbrush with non-metallic bristles.
  • the bristles taper towards the tip and have a bristle root that allows them to be firmly anchored in a rubber mat by first pushing the bristles with the tip through openings in the mat and applying pressure to the bristle feet from the brush side through a corresponding brush body becomes.
  • a method for producing bristles according to the preamble of claim 1 is known from DE 2155888 known.
  • a multi-part separable mold is disclosed, with which a bristle with bristle foot and bristle shaft can be formed.
  • the method allows at least in principle to produce burr-free bristle shafts, but requires a complex stretching and a complex mold. Despite the complexity of this mold, however, no arbitrary shapes can be made for the bristle foot or bristle head.
  • the object of the present invention is to offer bristles and brushes and methods for their production that are improved over the prior art.
  • the bristles and brushes should be particularly gentle on the hair and scalp.
  • the manufacturing processes should be suitable for mass production, they should be inexpensive and produce little committee.
  • the method should provide safe and gentle to use bristles and brushes even with imperfect production standards.
  • the use of a multi-part separable molding tool makes it possible to provide optimized mold cavities for various bristle parts.
  • the bristle stock blank is formed in the mold cavity of a separate mold jaw.
  • moldable material is introduced into the mold, which for this purpose generally has an air outlet channel opposite the filling opening for the moldable material.
  • the mold cavity will usually taper away from the filler opening, i. H. the mold cavity has a smaller cross section at a location farther from the filling opening. Accordingly, the bristle shaft blank will typically be shaped to taper toward the bristle head.
  • the invention is suitable for the formation of bristles of all common moldable materials, d. H. all suitable plastics, and in particular polyamides.
  • a preferred material is aliphatic polyamides, especially those commercially available as "nylon". Such aliphatic polyamides are relatively insensitive to heat, allowing the bristles to be used in a hairbrush while the hair is heated, such as by a hair dryer.
  • a bristle shaft for example by deburring.
  • deburring is to treat shaped bristle shafts with friction means.
  • this operation is time consuming and expensive, and can also lead to increased roughness at other locations of the bristle shaft.
  • the bristle shaft could be frozen for purposes of deburring.
  • the per se very tough aliphatic polyamide material is easier to deburr by deep cooling. Obviously this step is also expensive.
  • the bristle base is formed with two mold jaws, which together form a mold cavity.
  • This mold cavity which is formed by two mold jaws, substantially corresponds to the shape of the bristle foot to be formed. It is filled with the moldable material and later the two mold jaws are separated.
  • the bristle foot is usually formed from the same moldable material as the bristle shaft.
  • the mold cavities for bristle shaft and bristle foot thereby form a connected mold cavity, which is filled in one step with a moldable material. But it is also the formation of bristle shaft and foot of different material conceivable.
  • the Bostenkopf is also formed with two mold jaws, which together form a mold cavity.
  • This mold cavity which is formed by two mold jaws, substantially corresponds to the shape of the bristle head to be formed. It is filled with the moldable material and later the two mold jaws are separated.
  • the Bostenkopf is usually formed from the same moldable material as the bristle shaft and / or bristle foot.
  • the mold cavities for bristle shaft and bristle head form an interconnected mold cavity, which is filled in one step with a moldable material. But it is also the formation of bristle shaft and foot of different material conceivable.
  • the withdrawal direction is dictated by this taper.
  • the bristle shaft will rejuvenate in the direction of the border head.
  • the removal should take place from the mold in the direction of the bristle foot.
  • the two mold jaws which have formed the bristle head are first of all released. Then, the two mold jaws that have formed the bristle foot are moved relative to the mold jaw for the bristle shaft. Then the two mold jaws are held bristle foot have moved apart so that the bristle is completely outside of the mold.
  • a method is considered in which the largest diameter of the bristle head measured radially to the longitudinal axis of the bristle is smaller than the smallest diameter of the bristle shaft measured radially to the longitudinal axis of the bristle.
  • the largest diameter of the bristle head measured radially to the longitudinal axis of the bristle may be smaller by a factor of at least 0.5 or 0.75 or 0.8 or 0.9 than the smallest diameter of the bristle shaft measured radially to the longitudinal axis of the bristle.
  • the bristle material may be largely or completely inelastic because the geometry of the bristle does not hinder removal in any way. If a sufficiently elastic material is used, however, the diameter of the bristle head can also be greater than the diameter of the bristle shaft (measured in each case as above).
  • brushes are a reasonably priced daily new commodity. Therefore, a brush should not be too expensive. All the more so, attention must be paid to an inexpensive mass-production method given the enormous number of bristles to be produced. Separable molds, which together form a mold cavity, regularly leave a small ridge along the parting line. For high-quality and new molds this burr is low. Especially in a cheap mass process, it is necessary to use inexpensive molds over a certain period of use. This leads to significant burrs that have the disadvantages described above when used as a hairbrush.
  • the formation of the bristle shaft together with bristle foot in a single mold is not without other difficulties.
  • the bristle shaft must then taper over its entire length and the bristle foot must do so, so that no complex bristle shape can be generated.
  • Denman discloses a relatively complex brush body in which the bristles are fully supported. The bristles can bend over to the side, however do not dodge along its longitudinal axis towards the brush. Such a retraction of the bristles, so a resilient storage, but is much gentler for the scalp, for example, when the brush is used as a hairbrush.
  • the present method allows Bosten to produce such a resilient storage.
  • the resilient mounting of the bristles can be achieved if the bristle has an undercut, with which the bristle foot can be attached both on the top and on the underside of a substrate.
  • Such a carrier material may be, for example, an elastic rubber mat, which is embedded elastically biased in the bristle body. This rubber mat then gives every single sunken bristle a spring elasticity.
  • the bristles can both recede along their longitudinal axis (and spring-elastically pressed back towards the hair) as well as yield in any axial direction. To be able to design a more complex shaped bristle foot therefore allows to produce gentler brushes.
  • the method for producing a bristle may also comprise further work steps.
  • Such processing may consist in dyeing, grinding, smoothing or polishing the bristle stock blank.
  • the processing of the bristle shaft blank in the region of his head in question may consist in dyeing, grinding, smoothing or polishing the bristle stock blank.
  • bristles on the bristle head with a shell material.
  • the bristle heads with paint, for example in the form of small paint droplets, which cause thickening and rounding of the bristle head.
  • Such painted bristle ends are known. However, they lead with prolonged use of bristles and brush regularly to the problem that the shell material drops from the bristle. This problem can be addressed by providing a bristle head with a suitable profile.
  • the third mold cavity can in the process described inde pendent of the other mold cavities are designed to choose the profile suitable. Bristles whose bristle head has an undercut or a constriction are very suitable.
  • the method can thus be advantageously used to produce at least one bristle which comprises a bristle foot, a bristle shaft and a bristle head, each having a different profile, and in which the bristle base has an undercut, the bristle shaft is burr-free and the bristle head has a bristle head cover.
  • a bristle which comprises a bristle foot, a bristle shaft and a bristle head each having a different profile, and wherein the bristle has an undercut, the bristle shaft is burr-free and the bristle head has a bristle head cover and the largest radially to the bristle longitudinal axis measured diameter of Bristle head is smaller than the smallest measured radially to the bristle longitudinal axis diameter of the bristle shaft.
  • the largest diameter of the bristle head measured radially to the longitudinal axis of the bristle may be smaller by a factor of at least 0.5 or 0.75 or 0.8 or 0.9 than the smallest diameter of the bristle shaft measured radially to the longitudinal axis of the bristle.
  • the bristle and the bristle head may have a constriction or an undercut.
  • the present method makes it possible to design bristle heads of any shape in a separate mold. However, in the case of shaping by the two mold jaws involved, at least under certain circumstances of mass production, a burr may arise. It is possible to make the bristle head cover so that the bristle is particularly gentle even in weaknesses in the manufacturing process. In this context, it is possible to make the bristle head cover so that it completely envelops the bristle head, as far as it was in the third mold cavity. Typically, the bristle head envelope will envelop not only the end, often in the form of a ball, of the bristle head, but also the upper part of the shaft. It is contemplated that the bristle head cover extends axially over a certain length.
  • a bristle may be useful in which the bristle head extends axially over a first length (l k ) and the bristle head sheath extends axially over a second length (l h ) and the second length (l h ) by a factor of at least 1, 2 or 1.5 or 2 or 2.5 is greater than the first length (l k ).
  • the method can be used to provide bristles with a bristle head cover, in which the largest radially to the bristle longitudinal axis measured diameter of Bostenkopfhülle (20) is greater than the smallest radially measured to the longitudinal axis of the bristle diameter of the bristle shaft (14).
  • the largest diameter of the bristle head cover which is measured radially to the longitudinal axis of the bristle, can be greater by a factor of at least 1.1 or 1.25 or 1.5 or 2.0 or 2.5 than the smallest diameter of the bristle shaft measured radially to the longitudinal axis of the bristle.
  • the method of making bristles may be part of a brush manufacturing process.
  • a method of making a brush wherein bristles are made in a process according to any one of the preceding claims is contemplated and such bristles are inserted with their bristle base into a bristle carrier pad and the bristle carrier pad is inserted into a brush
  • a hairbrush made by any of the methods described herein may also include additional hair treatment devices.
  • the hairbrush additionally comprises an ion applicator.
  • Such an ion applicator can counteract the static charge of the hair. Hair typically recharges positively, so the application of negative ions to the hair is helpful.
  • Such an ion applicator may be mains powered or battery powered. For a particularly gentle and handy hairbrush, a battery-powered applicator for negative ions is considered.
  • Fig. 1 shows in longitudinal section a bristle (10) in a mold.
  • the longitudinal section is chosen along the longitudinal axis (L) of the bristle. Visible are the bristle head (12), the bristle shaft (14) and the bristle foot (16).
  • the bristle shaft (14) is formed in a first mold jaw (30).
  • the bristle base (16) is formed between a second mold jaw (32) and a third mold jaw (34), which together offer a second mold cavity (42).
  • the mold cavity (42) is designed so that the bristle foot (16) has an undercut (18).
  • the bristle head is formed between the fourth die jaw (36) and the fifth die jaw (38), which together offer the third die cavity (44).
  • the removal of the bristle from the molds can take place in that first the fourth mold jaw (36) and the fifth mold jaw (38) in the axial direction (A) are moved apart and then the second mold jaw (32) and the third mold jaw (34) in Bristle longitudinal direction (L) of the first mold jaw (30) are moved away. Subsequently, the second mold jaw (32) and the third mold jaw (34) along the axis (A) is moved apart.
  • Fig. 2 shows a bristle (10) that can be made by the method disclosed herein.
  • the bristle (10) has a burr-free bristle shaft (14) which is bounded above by a bristle head (12) and down through the bristle base (16). Between bristle base (16) and bristle head (12), the bristle shaft (14) tapers towards the bristle head (12).
  • the bristle base (16) has an undercut (18). With this undercut (18), the bristle (10) can be anchored in a bristle carrier.
  • the bristle head is formed substantially axially symmetrical to the longitudinal axis (L) of the bristle.
  • Fig. 3 shows another bristle (10) with a bristle head cladding. In its form, it essentially corresponds to the bristle of the Fig. 2 , However, a Bostenkopfhülle (20) is additionally applied to the bristle head (12). This leads to a thickening of the head relative to the bristle shaft (14), which promotes a gentle hair and skin treatment.
  • the head diameter (d k ) which is actually to be determined in the radial direction to the longitudinal axis, can be measured in a different direction with a spherical head profile, as shown.
  • the first length (l k ) can be conveniently determined in this round head shape between the top of the bristle head and the height of the narrowest constriction between bristle head and bristle shaft.
  • Fig. 4 shows a cross section through a brush which passes through the bristle of the brush (40). It can be seen in this cross section, the bristle carrier (42) and the brush body (44), in which the bristle carrier (42) is embedded.
  • the bristle carrier (42) can be resiliently biased are let in, so that the bristles in the bristle carrier (42) contained (10) are resiliently mounted relative to the bristle body (44).
  • the bristles (10) can move along their respective longitudinal axes on the brush body (44) and again move resiliently in the direction of about the hair back. You can also move in the axial direction.
  • the illustrated brush (40) is additionally provided with an ion applicator (50).
  • the ion applicator is attached to the back of the brush body, ie on the side facing away from the bristle carrier (42).

Description

Die Erfindung betrifft eine Haarbürste, Borsten zur Verwendung in einer Haarbürste und Verfahren zur Herstellung einer Haarbürste und solcher Borsten. Die Erfindung kann in einer Vielzahl von ganz verschiedenen Haarbürsten eingesetzt werden. Es kommt sogar in Betracht, daß die hierin beschriebenen Borsten in Bürsten eingesetzt werden, die nicht oder nicht vorwiegend zum Bürsten der Haare eingesetzt werden. Es kommt insbesondere auch in Betracht, daß die Borsten in einer Massagebürste eingesetzt werden. Ebenso kommt ihr Einsatz in einem Haarpflegegerät in Betracht, welches die Haare zusätzlich erwärmt, etwa durch warme Luft oder eine warme Kontaktfläche. Entsprechende Geräte werden als so genannte Styler oder Curler vermarktet.The invention relates to a hairbrush, bristles for use in a hairbrush, and methods of making a hairbrush and such bristles. The invention can be used in a variety of very different hairbrushes. It is even contemplated that the bristles described herein may be used in brushes that are not or not primarily used for brushing the hair. In particular, it is also considered that the bristles are used in a massage brush. Likewise, their use in a hair care device into consideration, which additionally warms the hair, such as through warm air or a warm contact surface. Corresponding devices are marketed as so-called stylers or curlers.

Die GB 601,371 (Denman ) offenbart eine Haarbürste mit nichtmetallischen Borsten. Die Borsten verjüngen sich zur Spitze hin und haben einen Borstenfuß, der ihre feste Verankerung in einer Gummimatte erlaubt, indem die Borsten mit der Spitze zuerst durch Öffnungen in der Matte geschoben werden, und durch einen entsprechenden Bürstenkörper von der Bürstenseite her Druck auf die Borstenfüße ausgeübt wird.The GB 601,371 (Denman ) discloses a hairbrush with non-metallic bristles. The bristles taper towards the tip and have a bristle root that allows them to be firmly anchored in a rubber mat by first pushing the bristles with the tip through openings in the mat and applying pressure to the bristle feet from the brush side through a corresponding brush body becomes.

Ein Verfahren zur Herstellung von Borsten gemäß dem Oberbegriff des Anspruchs 1 ist aus der DE 2155888 bekannt. Dort wird ein mehrteiliges trennbares Formwerkzeug offenbart, mit dem eine Borste mit Borstenfuß und Borstenschaft geformt werden kann. Das Verfahren erlaubt es zumindest prinzipiell gratfreie Borstenschäfte zu erzeugen, erfordert aber ein aufwendiges Recken und ein komplexes Formwerkzeug. Trotz der Komplexität dieses Formwerkzeuges können jedoch keine frei wählbaren Formen für den Borstenfuß oder Borstenkopf hergestellt werden.A method for producing bristles according to the preamble of claim 1 is known from DE 2155888 known. There, a multi-part separable mold is disclosed, with which a bristle with bristle foot and bristle shaft can be formed. The method allows at least in principle to produce burr-free bristle shafts, but requires a complex stretching and a complex mold. Despite the complexity of this mold, however, no arbitrary shapes can be made for the bristle foot or bristle head.

Die vorliegende Erfindung macht sich zur Aufgabe, Borsten und Bürsten sowie Verfahren zu deren Herstellung anzubieten, die gegenüber dem Stand der Technik verbessert sind. Die Borsten und Bürsten sollen besonders schonend auf Haare und Kopfhaut einwirken. Die Herstellungsverfahren sollen zur Massenherstellung geeignet sein, sie sollen kostengünstig sein und wenig Ausschuß hervorbringen. Insbesondere sollen die Verfahren auch bei nicht perfekten Produktionsstandards sichere und schonend zu verwendende Borsten und Bürsten bereitstellen.The object of the present invention is to offer bristles and brushes and methods for their production that are improved over the prior art. The bristles and brushes should be particularly gentle on the hair and scalp. The manufacturing processes should be suitable for mass production, they should be inexpensive and produce little committee. In particular, the method should provide safe and gentle to use bristles and brushes even with imperfect production standards.

Gelöst werden diese Aufgaben durch ein Verfahren zur Herstellung einer Borste nach Anspruch 1, durch ein Verfahren zur Herstellung einer Bürste nach Anspruch 9 und durch eine Borste nach Anspruch 10. Bevorzugte Ausführungsformen, durch die die Aufgaben besonders gut gelöst werden, sind in den Unteransprüchen beschrieben.These objects are achieved by a method for producing a bristle according to claim 1, by a method for producing a brush according to claim 9 and by a Bristle according to claim 10. Preferred embodiments by which the objects are achieved particularly well are described in the subclaims.

Die Verwendung eines mehrteiligen trennbaren Formwerkzeuges erlaubt es, optimierte Formhohlräume für verschiedene Borstenteile zur Verfügung zu stellen. Der Borstenschaftrohling wird im Formhohlraum einer separaten Formbacke geformt. Dazu wird formbares Material in das Formwerkzeug eingebracht, welches hierzu in aller Regel gegenüber der Einfüllöffnung für das formbare Material einen Luftaustrittskanal aufweist. Der Formhohlraum wird sich üblicherweise von der Einfüllöffnung weg verjüngen, d. h. der Formhohlraum hat an einer weiter von der Einfüllöffnung entfernten Stelle einen kleineren Querschnitt. Dementsprechend wird der Borstenschaftrohling in der Regel so geformt werden, daß er sich in Richtung auf den Borstenkopf hin verjüngt.The use of a multi-part separable molding tool makes it possible to provide optimized mold cavities for various bristle parts. The bristle stock blank is formed in the mold cavity of a separate mold jaw. For this purpose, moldable material is introduced into the mold, which for this purpose generally has an air outlet channel opposite the filling opening for the moldable material. The mold cavity will usually taper away from the filler opening, i. H. the mold cavity has a smaller cross section at a location farther from the filling opening. Accordingly, the bristle shaft blank will typically be shaped to taper toward the bristle head.

Die Erfindung ist geeignet für die Formung von Borsten von allen gängigen formbaren Materialien, d. h. allen geeigneten Kunststoffen, und insbesondere Polyamiden. Ein bevorzugtes Material sind aliphatische Polyamide, insbesondere solche die als "Nylon" im Handel erhältlich sind. Solche aliphatische Polyamide sind relativ hitzeunempfindlich, was es erlaubt, die Borsten in einer Haarbürste zu verwenden während das Haar erhitzt wird, etwa durch einen Haartrockner.The invention is suitable for the formation of bristles of all common moldable materials, d. H. all suitable plastics, and in particular polyamides. A preferred material is aliphatic polyamides, especially those commercially available as "nylon". Such aliphatic polyamides are relatively insensitive to heat, allowing the bristles to be used in a hairbrush while the hair is heated, such as by a hair dryer.

Insbesondere für die bevorzugten aliphatischen Polyamide ist jedoch bekannt, daß sie leicht zur Gratbildung neigen, da sie in mehrteiligen Formwerkzeugen besonders gut verlaufen. Würde also der Formhohlraum für den Borstenschaft in einem zwei- oder mehrteiligen Formwerkzeug gebildet, so bliebe beim Entformen ein Grat zurück. Ein solcher Grat am Borstenschaft beschädigt aber das Haar und zudem sammeln sich dort leicht Verschmutzungen. Dies führt zu einer wenig hygienischen, wenig schonenden Haarbürste.In particular, for the preferred aliphatic polyamides, however, it is known that they tend to burr easily, since they run particularly well in multi-part molds. Thus, if the mold cavity for the bristle shank were formed in a two-part or multi-part mold, then a burr would remain when the mold is removed. However, such a ridge on the bristle shaft damages the hair and also easily collects dirt there. This leads to a less hygienic, less gentle hairbrush.

Denkbar wäre die Nachbehandlung eines Borstenschaftes, beispielsweise durch Entgraten. Eine Möglichkeit des Entgratens stellt das Behandeln geformter Borstenschäfte mit Reibmitteln dar. Dieser Arbeitsschritt ist aber zeitaufwendig und teuer und kann auch zu einer vermehrten Rauigkeit an übrigen Stellen des Borstenschaftes führen. Alternativ oder zusätzlich könnte der Borstenschaft zum Zwecke des Entgratens tiefgekühlt werden. Das an sich sehr zähe aliphatische Polyamidmaterial ist durch Tiefkühlen leichter zu entgraten. Dieser Schritt ist aber offensichtlich ebenfalls kostspielig.It would be conceivable to post-treat a bristle shaft, for example by deburring. One way of deburring is to treat shaped bristle shafts with friction means. However, this operation is time consuming and expensive, and can also lead to increased roughness at other locations of the bristle shaft. Alternatively or additionally, the bristle shaft could be frozen for purposes of deburring. The per se very tough aliphatic polyamide material is easier to deburr by deep cooling. Obviously this step is also expensive.

Nach dem vorgestellten Verfahren wird der Borstenfuß mit zwei Formbacken geformt, welche zusammen einen Formhohlraum bilden. Dieser Formhohlraum, der von zwei Formbacken gebildet wird, entspricht im Wesentlichen der Form des zu formenden Borstenfußes. Er wird mit dem formbaren Material gefüllt und später werden die beiden Formbacken getrennt.According to the presented method, the bristle base is formed with two mold jaws, which together form a mold cavity. This mold cavity, which is formed by two mold jaws, substantially corresponds to the shape of the bristle foot to be formed. It is filled with the moldable material and later the two mold jaws are separated.

Der Borstenfuß wird in der Regel aus demselben formbaren Material wie der Borstenschaft gebildet. Die Formhohlräume für Borstenschaft und Borstenfuss bilden dabei einen verbundenen Formhohlraum, der in einem Arbeitsschritt mit einem formbaren Material gefüllt wird. Es ist aber auch die Formung von Borstenschaft und -fuß aus verschiedenem Material denkbar.The bristle foot is usually formed from the same moldable material as the bristle shaft. The mold cavities for bristle shaft and bristle foot thereby form a connected mold cavity, which is filled in one step with a moldable material. But it is also the formation of bristle shaft and foot of different material conceivable.

Nach dem vorgestellten Verfahren wird der Bostenkopf ebenfalls mit zwei Formbacken geformt, welche zusammen einen Formhohlraum bilden. Dieser Formhohlraum, der von zwei Formbacken gebildet wird, entspricht im Wesentlichen der Form des zu formenden Borstenkopfes. Er wird mit dem formbaren Material gefüllt und später werden die beiden Formbacken getrennt.After the presented method, the Bostenkopf is also formed with two mold jaws, which together form a mold cavity. This mold cavity, which is formed by two mold jaws, substantially corresponds to the shape of the bristle head to be formed. It is filled with the moldable material and later the two mold jaws are separated.

Der Bostenkopf wird in der Regel aus demselben formbaren Material wie der Borstenschaft und/oder Borstenfuß gebildet. Die Formhohlräume für Borstenschaft und Borstenkopf bilden dabei einen verbundenen Formhohlraum, der in einem Arbeitsschritt mit einem formbaren Material gefüllt wird. Es ist aber auch die Formung von Borstenschaft und -fuß aus verschiedenem Material denkbar.The Bostenkopf is usually formed from the same moldable material as the bristle shaft and / or bristle foot. The mold cavities for bristle shaft and bristle head form an interconnected mold cavity, which is filled in one step with a moldable material. But it is also the formation of bristle shaft and foot of different material conceivable.

Zur Entnahme des Borstenschaftes aus seiner Formbacke kann diese relativ zu den Formbacken, welche den Borstenfuß halten, entlang der Achse der entstandenen Borste wegbewegt werden. Danach können die beiden Formbacken, die den Borstenfuß halten, getrennt werden. Diese Bewegung der Formbacken ermöglicht eine einfache Entnahme der Borsten ohne zusätzliche Vorrichtungen.To remove the bristle shaft from its forming jaw, it can be moved away along the axis of the resulting bristle relative to the shaping jaws which hold the bristle foot. Thereafter, the two mold jaws that hold the bristle foot can be separated. This movement of the mold jaws allows easy removal of the bristles without additional devices.

Bei einem Borstenschaft jedoch, der sich in eine axiale Richtung verjüngt, ist die Entnahmerichtung durch diese Verjüngung vorgegeben. In der Regel wird sich der Borstenschaft in Richtung des Bortenkopfes verjüngen. Dann sollte die Entnahme aus dem Formwerkzeug in Richtung des Borstenfußes erfolgen. Bei einem beispielhaften Verfahren also werden zunächst die beiden Formbacken, die den Borstenkopf geformt haben gelöst. Sodann werden die beiden Formbacken, die den Borstenfuß geformt haben relativ zur Formbacke für den Borstenschaft bewegt. Sodann werden die beiden Formbacken die den Borstenfuß gehalten haben auseinander bewegt, so daß die Borste sich ganz außerhalb des Formwerkzeugs befindet. Gerade bei diesem Entnahmeverfahren ist es vorteilhaft, wenn der Borstenkopf nicht zu dick ist. Insbesondere kommt ein Verfahren in Betracht, bei dem der größte radial zur Borstenlängsachse gemessene Durchmesser des Borstenkopfes kleiner ist als der kleinste radial zur Borstenlängsachse gemessene Durchmesser des Borstenschaftes. Insbesondere kann der größte radial zur Borstenlängsachse gemessene Durchmesser des Borstenkopfes um einen Faktor von mindestens 0,5 oder 0,75 oder 0,8 oder 0,9 kleiner sein als der kleinste radial zur Borstenlängsachse gemessene Durchmesser des Borstenschaftes. Bei einem solchen Verfahren kann das Borstenmaterial weitgehend oder vollständig unelastisch sein, da die Geometrie der Borste die Entnahme in keiner Weise behindert. Soweit ein hinreichend elastisches Material verwendet wird, kann jedoch der Durchmesser des Borstenkopfes auch größer sein als der Durchmesser des Borstenschaftes (jeweils gemessen wie oben).However, with a bristle shaft that tapers in an axial direction, the withdrawal direction is dictated by this taper. In general, the bristle shaft will rejuvenate in the direction of the border head. Then the removal should take place from the mold in the direction of the bristle foot. In an exemplary method, therefore, the two mold jaws which have formed the bristle head are first of all released. Then, the two mold jaws that have formed the bristle foot are moved relative to the mold jaw for the bristle shaft. Then the two mold jaws are held bristle foot have moved apart so that the bristle is completely outside of the mold. Especially in this removal method, it is advantageous if the bristle head is not too thick. In particular, a method is considered in which the largest diameter of the bristle head measured radially to the longitudinal axis of the bristle is smaller than the smallest diameter of the bristle shaft measured radially to the longitudinal axis of the bristle. In particular, the largest diameter of the bristle head measured radially to the longitudinal axis of the bristle may be smaller by a factor of at least 0.5 or 0.75 or 0.8 or 0.9 than the smallest diameter of the bristle shaft measured radially to the longitudinal axis of the bristle. In such a method, the bristle material may be largely or completely inelastic because the geometry of the bristle does not hinder removal in any way. If a sufficiently elastic material is used, however, the diameter of the bristle head can also be greater than the diameter of the bristle shaft (measured in each case as above).

Wegen ihrer Vorteile im Herstellungsverfahren, aber auch wegen ihrer Vorteile bei der Anwendung, ist also eine Borste von Nutzen, bei der der größte radial zur Borstenlängsachse gemessene Durchmesser des Borstenkopfes kleiner ist als der kleinste radial zur Borstenlängsachse gemessene Durchmesser des Borstenschaftes.Because of its advantages in the manufacturing process, but also because of its advantages in the application, so is a bristle of use in which the largest measured radially to the bristle longitudinal diameter of the bristle head is smaller than the smallest radially to the bristle longitudinal axis measured diameter of the bristle shaft.

Zu beachten ist, daß Bürsten eine preiswerte regelmäßig neu angeschaffte Ware des täglichen Bedarfs sind. Deshalb soll einen Bürste nicht zu teuer sein. Erst recht muß daher bei der enormen Zahl der zu erzeugenden Borsten auf ein preiswertes Massenherstellungsverfahren geachtet werden. Trennbare Formwerkzeuge, die gemeinsam einen Formhohlraum bilden, hinterlassen regelmäßig einen kleinen Grat entlang der Trennlinie. Bei hochwertigen und neuen Formwerkzeugen ist dieser Grat gering. Gerade in einem preiswerten Massenverfahren ist es aber erforderlich auch preiswerte Formwerkzeuge über einen gewisse Nutzungsdauer einzusetzen. Dies führt zu deutlichen Graten, die die oben beschriebenen Nachteile bei der Benutzung als Haarbürste haben.It should be noted that brushes are a reasonably priced daily new commodity. Therefore, a brush should not be too expensive. All the more so, attention must be paid to an inexpensive mass-production method given the enormous number of bristles to be produced. Separable molds, which together form a mold cavity, regularly leave a small ridge along the parting line. For high-quality and new molds this burr is low. Especially in a cheap mass process, it is necessary to use inexpensive molds over a certain period of use. This leads to significant burrs that have the disadvantages described above when used as a hairbrush.

Auf der anderen Seite ist die Formung des Borstenschaftes samt Borstenfuß in einem einzigen Formwerkzeug nicht ohne andere Schwierigkeiten. Der Borstenschaft muß sich dann über seine ganze Länge verjüngen und der Borstenfuß muß dies ebenfalls, so daß keine komplexe Borstenform erzeugbar ist. Eine solch simple Borstenform, wie sie auch aus der GB 601,371 (Denman ) bekannt ist, führt jedoch zu gewissen zusätzlichen Anforderungen an die Bürste. Denman offenbart einen relativ komplexen Bürstenkörper, in dem die Borsten vollflächig unterstützt werden. Die Borsten können zwar zur Seite hin umknicken, jedoch nicht entlang ihrer Längsachse auf die Bürste zu zurückweichen. Ein solches Zurückweichen der Borsten, also eine federnde Lagerung, ist jedoch wesentlich schonender etwa für die Kopfhaut, wenn die Bürste als Haarbürste eingesetzt wird.On the other hand, the formation of the bristle shaft together with bristle foot in a single mold is not without other difficulties. The bristle shaft must then taper over its entire length and the bristle foot must do so, so that no complex bristle shape can be generated. Such a simple bristle shape, as well as from the GB 601,371 (Denman ), but leads to certain additional requirements for the brush. Denman discloses a relatively complex brush body in which the bristles are fully supported. The bristles can bend over to the side, however do not dodge along its longitudinal axis towards the brush. Such a retraction of the bristles, so a resilient storage, but is much gentler for the scalp, for example, when the brush is used as a hairbrush.

Das vorliegende Verfahren erlaubt es Bosten für eine solche federnde Lagerung herzustellen. Die federnde Lagerung der Borsten kann erreicht werden wenn der Borstenfuß einen Hinterschnitt hat, mit dem der Borstenfuß sowohl auf der Oberseite als auch auf der Unterseite eines Trägermaterials befestigt werden kann.The present method allows Bosten to produce such a resilient storage. The resilient mounting of the bristles can be achieved if the bristle has an undercut, with which the bristle foot can be attached both on the top and on the underside of a substrate.

Ein solches Trägermaterial kann etwa eine elastische Gummimatte sein, die elastisch vorgespannt im Borstenkörper eingelassen ist. Diese Gummimatte vermittelt dann jeder einzelnen eingelassenen Borste eine Federelastizität. Die Borsten können sowohl entlang ihrer Längsachse zurückweichen (und federelastisch wieder in Richtung Haar gedrückt werden) als auch in jeder axialen Richtung dazu nachgeben. Einen komplexer geformten Borstenfuß gestalten zu können erlaubt daher schonendere Bürsten herzustellen.Such a carrier material may be, for example, an elastic rubber mat, which is embedded elastically biased in the bristle body. This rubber mat then gives every single sunken bristle a spring elasticity. The bristles can both recede along their longitudinal axis (and spring-elastically pressed back towards the hair) as well as yield in any axial direction. To be able to design a more complex shaped bristle foot therefore allows to produce gentler brushes.

Die im Vergleich zu den Denman-Bosten komplexe Borstenform erlaubt eine simplere Bürstenform, die aber dennoch ein schonendes Kämmer ermöglicht. Darüber hinaus haben die Bosten aber nur wenig gratbehaltete Bereiche. Der über die ganze Länge gratfreie Bostenschaft schont das Haar.Compared to the Denman-Bosten complex bristle shape allows a simpler brush shape, but still allows a gentle Kämmer. In addition, the Bosten but only a few gratgeble areas. The burr-free burr shaft protects the hair.

Das Verfahren zur Herstellung einer Borste kann auch noch weitere Arbeitsschritte umfassen. Insbesondere kommt es in Betracht, das Profil des Borstenschaftrohlings weiter zu bearbeiten. Eine solche Bearbeitung kann im Färben, Schleifen, Glätten oder Polieren des Borstenschaftrohlings bestehen. Insbesondere kommt auch die Bearbeitung des Borstenschaftrohlings im Bereich seines Kopfes in Frage.The method for producing a bristle may also comprise further work steps. In particular, it is possible to further process the profile of the bristle shaft blank. Such processing may consist in dyeing, grinding, smoothing or polishing the bristle stock blank. In particular, the processing of the bristle shaft blank in the region of his head in question.

Es kommt auch in Betracht in einem weiteren Verfahrensschritt die Borsten am Borstenkopf mit einem Hüllmaterial zu versehen. Insbesondere kommt es in Betracht die Borstenköpfe mit Lack zu versehen, etwa in Form von kleinen Lacktröpfchen, die eine Verdickung und Verrundung des Borstenkopfes bewirken.It is also possible in a further process step to provide the bristles on the bristle head with a shell material. In particular, it is possible to provide the bristle heads with paint, for example in the form of small paint droplets, which cause thickening and rounding of the bristle head.

Solche lackierten Borstenenden sind bekannt. Sie führen aber bei längerem Gebrauch einer Borsten und Bürste regelmäßig zu dem Problem, daß das Hüllmaterial von der Borste abfällt. Diesem Problem kann begegenet werden, indem ein Borstenkopf mit geeigneten Profil vorgesehen wird. Der dritte Formhohlraum kann im beschriebenen Verfahren unabhänig von den anderen Formhohlräumen gestaltet werden, um das Profil geeignet zu wählen. Gut geeignet sind Borsten, deren Borstenkopf einen Hinterschnitt oder eine Einschnürung aufweist.Such painted bristle ends are known. However, they lead with prolonged use of bristles and brush regularly to the problem that the shell material drops from the bristle. This problem can be addressed by providing a bristle head with a suitable profile. The third mold cavity can in the process described inde pendent of the other mold cavities are designed to choose the profile suitable. Bristles whose bristle head has an undercut or a constriction are very suitable.

Das Verfahren kann also vorteilhaft dazu eingesetzt werden, mindestens eine Borste herzustellen, die einen Borstenfuß, einen Borstenschaft und einen Borstenkopf jeweils unterschiedlichen Profils umfasst, und bei der der Borstenfuß einen Hinterschnitt aufweist, der Borstenschaft gratfrei ist und der Borstenkopf eine Borstenkopfhülle aufweist.The method can thus be advantageously used to produce at least one bristle which comprises a bristle foot, a bristle shaft and a bristle head, each having a different profile, and in which the bristle base has an undercut, the bristle shaft is burr-free and the bristle head has a bristle head cover.

Insbesondere kommt auch eine Borste in Betracht, die einen Borstenfuß, einen Borstenschaft und einen Borstenkopf jeweils unterschiedlichen Profils umfasst, und bei der der Borstenfuß einen Hinterschnitt aufweist, der Borstenschaft gratfrei ist und der Borstenkopf eine Borstenkopfhülle aufweist und der größte radial zur Borstenlängsachse gemessene Durchmesser des Borstenkopfes kleiner ist als der kleinste radial zur Borstenlängsachse gemessene Durchmesser des Borstenschaftes. Insbesondere kann der größte radial zur Borstenlängsachse gemessene Durchmesser des Borstenkopfes um einen Faktor von mindestens 0,5 oder 0,75 oder 0,8 oder 0,9 kleiner sein als der kleinste radial zur Borstenlängsachse gemessene Durchmesser des Borstenschaftes. Bei einer solchen Borste kann auch der Borstenkopf eine Einschnürung oder einen Hinterschnitt aufweisen.In particular, a bristle is contemplated, which comprises a bristle foot, a bristle shaft and a bristle head each having a different profile, and wherein the bristle has an undercut, the bristle shaft is burr-free and the bristle head has a bristle head cover and the largest radially to the bristle longitudinal axis measured diameter of Bristle head is smaller than the smallest measured radially to the bristle longitudinal axis diameter of the bristle shaft. In particular, the largest diameter of the bristle head measured radially to the longitudinal axis of the bristle may be smaller by a factor of at least 0.5 or 0.75 or 0.8 or 0.9 than the smallest diameter of the bristle shaft measured radially to the longitudinal axis of the bristle. In such a bristle and the bristle head may have a constriction or an undercut.

Das vorliegende Verfahren erlaubt es Borstenköpfe beliebiger Form in einem separaten Formwerkzeug zu gestalten. Bei der Formung durch die beiden beteiligten Formbacken, kann jedoch, jedenfalls unter bestimmten Umständen der Massenproduktion, ein Grat entstehen. Es kommt in Betracht die Borstenkopfhülle so zu gestalten, daß die Borste sogar bei Schwächen im Herstellungsverfahren besonders schonend ist. In diesem Zusammenhang kommt es in Betracht die Borstenkopfhülle so zu gestalten, daß sie den Borstenkopf, soweit er in dem dritten Formhohlraum lag, vollständig umhüllt. Typischerweise wird die Borstenkopfhüllung dabei nicht nur das Ende, oft in Form einer Kugel, des Borstenkopfes umhüllen, sondern auch den oberen Teil des Schaftes. Es kommt in Betracht, daß sich die Borstenkopfhülle axial über eine bestimmte Länge erstreckt. Insbesondere kann eine Borste nützlich sein, bei der sich der Borstenkopf axial über eine erste Länge (lk) und sich die Borstenkopfhülle axial über eine zweite Länge (lh) erstreckt und die zweite Länge (lh) um einen Faktor von minestens 1,2 oder 1,5 oder 2 oder 2,5 größer ist als die erste Länge (lk).The present method makes it possible to design bristle heads of any shape in a separate mold. However, in the case of shaping by the two mold jaws involved, at least under certain circumstances of mass production, a burr may arise. It is possible to make the bristle head cover so that the bristle is particularly gentle even in weaknesses in the manufacturing process. In this context, it is possible to make the bristle head cover so that it completely envelops the bristle head, as far as it was in the third mold cavity. Typically, the bristle head envelope will envelop not only the end, often in the form of a ball, of the bristle head, but also the upper part of the shaft. It is contemplated that the bristle head cover extends axially over a certain length. In particular, a bristle may be useful in which the bristle head extends axially over a first length (l k ) and the bristle head sheath extends axially over a second length (l h ) and the second length (l h ) by a factor of at least 1, 2 or 1.5 or 2 or 2.5 is greater than the first length (l k ).

Das Verfahren kann eingesetzt werden um Borsten mit einer Borstenkopfhülle zu versehen, bei der der größte radial zur Borstenlängsachse gemessene Durchmesser der Bostenkopfhülle (20) größer ist als der kleinste radial zur Borstenlängsachse gemessene Durchmesser des Borstenschaftes (14). Insbesondere kann der größte radial zur Borstenlängsachse gemessene Durchmesser der Borstenkopfhülle um einen Faktor von mindestens 1,1 oder 1,25 oder 1,5 oder 2,0 oder 2.5 größer sein als der kleinste radial zur Borstenlängsachse gemessene Durchmesser des Borstenschaftes.The method can be used to provide bristles with a bristle head cover, in which the largest radially to the bristle longitudinal axis measured diameter of Bostenkopfhülle (20) is greater than the smallest radially measured to the longitudinal axis of the bristle diameter of the bristle shaft (14). In particular, the largest diameter of the bristle head cover, which is measured radially to the longitudinal axis of the bristle, can be greater by a factor of at least 1.1 or 1.25 or 1.5 or 2.0 or 2.5 than the smallest diameter of the bristle shaft measured radially to the longitudinal axis of the bristle.

Das Verfahren zur Herstellung von Borsten kann Teil eines Herstellungsverfahrens für Bürsten sein. In Betracht kommt ein Verfahren zur Herstellung einer Bürste, bei dem Borsten in einem Verfahren nach einem der vorhergehenden Ansprüche herstellt werden, und diese Borsten mit ihrem Borstenfuss in eine Borstenträgerkissen eingesetzt werden und das Borstenträgerkissen in eine Bürste eingesetzt wirdThe method of making bristles may be part of a brush manufacturing process. A method of making a brush wherein bristles are made in a process according to any one of the preceding claims is contemplated and such bristles are inserted with their bristle base into a bristle carrier pad and the bristle carrier pad is inserted into a brush

Eine Haarbürste, die nach einem der hier beschriebenen Verfahren hergestellt wurde, kann auch zusätzliche Haarbehandlungsvorrichtungen umfassen. Insbesondere kommt es in Betracht, daß die Haarbürste zusätzlich einen lonenapplikator umfasst. Ein solcher lonenapplikator kann der statischen Aufladung des Haares entgegenwirken. Haar lädt sich typischerweise positiv auf, so daß die Aufbringung negativer Ionen auf das Haar hilfreich ist. Ein solcher lonenapplikator kann netzbetrieben oder batteriebetrieben sein. Für eine besonders schonende und handliche Haarbürste wird ein batteriebetriebener Applikator für negative Ionen erwogen.A hairbrush made by any of the methods described herein may also include additional hair treatment devices. In particular, it is contemplated that the hairbrush additionally comprises an ion applicator. Such an ion applicator can counteract the static charge of the hair. Hair typically recharges positively, so the application of negative ions to the hair is helpful. Such an ion applicator may be mains powered or battery powered. For a particularly gentle and handy hairbrush, a battery-powered applicator for negative ions is considered.

Diese und weitere Merkmale der Erfindung gehen außer aus den Ansprüchen auch aus der nachfolgenden Beschreibung und/oder den zugehörigen Zeichnungen hervor, wobei die Merkmale in verschiedener Kombination und Unterkombination miteinander sowie einzeln ungeachtet ihrer Zusammenfassung in den Ansprüchen den Gegenstand der Erfindung bilden können. Die Erfindung wird nachfolgend anhand bevorzugter Ausführungsbeispiele und zugehöriger Zeichnungen näher erläutert. In den Zeichnungen zeigen:

Fig. 1:
Einen Längsschnitt durch die Formwerkzeuge entlang der Längsmittelachse einer Borste.
Fig. 2:
Einen Längsschnitt durch eine erfindungsgemäße Borste.
Fig. 3:
Einen Längsschnitt durch eine erfindungsgemäße Borste die eine Borstenkopfumhüllung aufweist.
Fig. 4:
Einen Querschnitt durch eine Bürste.
These and other features of the invention will become apparent from the claims and from the following description and / or the accompanying drawings, wherein the features in various combination and sub-combination with each other and individually regardless of their summary in the claims form the subject of the invention. The invention will be explained in more detail with reference to preferred embodiments and associated drawings. In the drawings show:
Fig. 1:
A longitudinal section through the molds along the longitudinal central axis of a bristle.
Fig. 2:
A longitudinal section through a bristle according to the invention.
3:
A longitudinal section through a bristle according to the invention having a bristle head cover.
4:
A cross section through a brush.

Fig. 1 zeigt im Längsschnitt eine Borste (10) in einem Formwerkzeug. Der Längsschnitt ist entlang der Längsachse (L) der Borste gewählt. Sichtbar sind der Borstenkopf (12), der Borstenschaft (14) und der Borstenfuß (16). Der Borstenschaft (14) entsteht in einer ersten Formbacke (30). Der Borstenfuß (16) entsteht zwischen einer zweiten Formbacke (32) und einer dritten Formbacke (34), die gemeinsam einen zweiten Formhohlraum (42) anbieten. Der Formhohlraum (42) ist so gestaltet, daß der Borstenfuß (16) einen Hinterschnitt (18) aufweist. Der Borstenkopf entsteht zwischen der vierten Formbacke (36) und der fünften Formbacke (38), die gemeinsam den dritten Formhohlraum (44) anbieten. Die Entnahme der Borste aus den Formwerkzeugen kann dadurch erfolgen daß zunächst die vierte Formbacke (36) und die fünfte Formbacke (38) in axialer Richtung (A) auseinander bewegt werden und danach die zweite Formbacke (32) und die dritte Formbacke (34) in Borstenlängsrichtung (L) von der ersten Formbacke (30) weg bewegt werden. Anschließend wird auch die zweite Formbacke (32) und die dritte Formbacke (34) entlang der Achse (A) auseinander bewegt. Fig. 1 shows in longitudinal section a bristle (10) in a mold. The longitudinal section is chosen along the longitudinal axis (L) of the bristle. Visible are the bristle head (12), the bristle shaft (14) and the bristle foot (16). The bristle shaft (14) is formed in a first mold jaw (30). The bristle base (16) is formed between a second mold jaw (32) and a third mold jaw (34), which together offer a second mold cavity (42). The mold cavity (42) is designed so that the bristle foot (16) has an undercut (18). The bristle head is formed between the fourth die jaw (36) and the fifth die jaw (38), which together offer the third die cavity (44). The removal of the bristle from the molds can take place in that first the fourth mold jaw (36) and the fifth mold jaw (38) in the axial direction (A) are moved apart and then the second mold jaw (32) and the third mold jaw (34) in Bristle longitudinal direction (L) of the first mold jaw (30) are moved away. Subsequently, the second mold jaw (32) and the third mold jaw (34) along the axis (A) is moved apart.

Fig. 2 zeigt eine Borste (10), die nach dem hier offenbarten Verfahren hergestellt werden kann. Die Borste (10) hat einen gratfreien Borstenschaft (14) der nach oben durch einen Borstenkopf (12) und nach unten durch den Borstenfuß (16) begrenzt wird. Zwischen Borstenfuß (16) und Borstenkopf (12) verjüngt sich der Borstenschaft (14) zum Borstenkopf (12) hin. Der Borstenfuß (16) weist einen Hinterschnitt (18) auf. Mit diesem Hinterschnitt (18) kann die Borste (10) in einem Borstenträger verankert werden. Der Borstenkopf ist dabei im Wesentlichen axialsymmetrisch zur Längsachse (L) der Borste ausgebildet. Fig. 2 shows a bristle (10) that can be made by the method disclosed herein. The bristle (10) has a burr-free bristle shaft (14) which is bounded above by a bristle head (12) and down through the bristle base (16). Between bristle base (16) and bristle head (12), the bristle shaft (14) tapers towards the bristle head (12). The bristle base (16) has an undercut (18). With this undercut (18), the bristle (10) can be anchored in a bristle carrier. The bristle head is formed substantially axially symmetrical to the longitudinal axis (L) of the bristle.

Fig. 3 zeigt eine andere Borste (10) mit einer Borstenkopfumhüllung. In ihrer Form entspricht sie im Wesentlichen der Borste der Fig. 2. Jedoch ist am Borstenkopf (12) zusätzlich eine Bostenkopfhülle (20) aufgebracht. Dieses führt zu einer Verdickung des Kopfes gegenüber dem Borstenschaft (14), die eine schonende Haar- und Hautbehandlung fördert. Der Bostenkopfdurchmesser (dk), der eigentlich in radialer Richtung zur Längsachse zu bestimmen ist, kann bei einem kugelförmigen Kopfprofil, so wie gezeigt, auch in anderer Richtung gemessen werden. Die erste Länge (lk) kann bei dieser runden Kopfform bequem zwischen dem oberen Ende des Borstenkopfes und der Höhe der engsten Einschnürung zwischen Borstenkopf und Borstenschaft bestimmt werden. Fig. 3 shows another bristle (10) with a bristle head cladding. In its form, it essentially corresponds to the bristle of the Fig. 2 , However, a Bostenkopfhülle (20) is additionally applied to the bristle head (12). This leads to a thickening of the head relative to the bristle shaft (14), which promotes a gentle hair and skin treatment. The head diameter (d k ), which is actually to be determined in the radial direction to the longitudinal axis, can be measured in a different direction with a spherical head profile, as shown. The first length (l k ) can be conveniently determined in this round head shape between the top of the bristle head and the height of the narrowest constriction between bristle head and bristle shaft.

Fig. 4 zeigt einen Querschnitt durch eine Bürste, welcher durch das Borstenfeld der Bürste (40) geht. Man erkennt in diesem Querschnitt den Borstenträger (42) und den Bürstenkörper (44), in den der Borstenträger (42) eingelassen ist. Der Borstenträger (42) kann federnd vorgespannt eingelassen werden, so daß die im Borstenträger (42) enthaltenen Borsten (10) federelastisch gegenüber dem Borstenkörper (44) gelagert sind. Die Borsten (10) können sich entlang ihrer respektiven Längsachsen auf den Bürstenkörper (44) zu bewegen und wieder federnd in Richtung etwa der Haare zurück bewegen. Sie können sich ferner in axialer Richtung bewegen. Fig. 4 shows a cross section through a brush which passes through the bristle of the brush (40). It can be seen in this cross section, the bristle carrier (42) and the brush body (44), in which the bristle carrier (42) is embedded. The bristle carrier (42) can be resiliently biased are let in, so that the bristles in the bristle carrier (42) contained (10) are resiliently mounted relative to the bristle body (44). The bristles (10) can move along their respective longitudinal axes on the brush body (44) and again move resiliently in the direction of about the hair back. You can also move in the axial direction.

Die gezeigte Bürste (40) ist zusätzlich mit einem lonenapplikator (50) versehen. Der lonenapplikator ist an der Rückseite des Bürstenkörpers angebracht, also an der Seite die vom Borstenträger (42) abgewandt ist.The illustrated brush (40) is additionally provided with an ion applicator (50). The ion applicator is attached to the back of the brush body, ie on the side facing away from the bristle carrier (42).

Claims (13)

  1. Method for producing a bristle (10) for use in a hair brush (40), in which moldable material is introduced into a multipart, separable molding tool, and a bristle (10) with a bristle head (12), a bristle shaft (14), and a bristle foot (16) is produced,
    characterized in that
    a bristle shaft (14) is molded by means of a first mold jaw (30), wherein moldable material is introduced into a first mold cavity (40) of the first mold jaw (30) and later removed from the first mold cavity (40) of the first mold jaw (30), wherein the first mold cavity (40) of the first mold jaw (30) is maintained, and
    the bristle foot (16) is molded in a second mold jaw (32) and a third mold jaw (34), wherein the second and third mold jaws together form a second mold cavity (42), the shape of which substantially corresponds to the shape of the bristle foot (16) to be molded, and the second mold cavity (42) is filled with the moldable material and the second and third mold jaws are later separated, and
    the bristle head (12) is molded in a fourth mold jaw (36) and a fifth mold jaw (38), wherein the fourth and fifth mold jaws together form a third mold cavity (44), the shape of which substantially corresponds to the shape of the bristle head (12) to be molded, and the third mold cavity (44) is filled with the moldable material and the fourth and fifth mold jaws are later separated.
  2. Method according to claim 1, in which the largest diameter of the bristle head (12) measured radially to the bristle longitudinal axis is smaller than the smallest diameter of the bristle shaft (14) measured radially to the bristle longitudinal axis.
  3. Method according to one of the preceding claims, in which the bristle (10) is processed further.
  4. Method according to claim 3, in which the bristle (10) is further processed in the region of the bristle head (12).
  5. Method according to claim 4, in which the profile of the bristle shaft blank is provided with a bristle head sleeve (20) in the region of the head.
  6. Method according to claim 5, in which the bristle head sleeve (20) completely surrounds the bristle head (12) to the extent that the latter was located in the third mold cavity (44).
  7. Method according to claim 5 or 6, in which the largest diameter of the bristle head sleeve (20) measured radially to the bristle longitudinal axis is larger than the smallest diameter of the bristle shaft (14) measured radially to the bristle longitudinal axis.
  8. Method according to one of the preceding claims, in which an undercut (18) is provided on the bristle foot (16).
  9. Method for producing a brush (40), in which bristles (10) are produced in a method according to one of the preceding claims, and these bristles (10) are inserted with their bristle foot (16) into a bristle carrier (42), and the bristle carrier (42) is inserted into a brush body (44).
  10. Bristle (10) produced according to the method according to one of the preceding claims.
  11. Hairbrush produced according to the method according to claim 9.
  12. Hairbrush according to claim 11, comprising an additional hair treatment device.
  13. Hairbrush according to claim 12, comprising an ion applicator (50).
EP08867711.7A 2007-12-29 2008-11-26 Bristle and method for producing a bristle Active EP2224830B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007063154A DE102007063154A1 (en) 2007-12-29 2007-12-29 hairbrush
PCT/EP2008/009995 WO2009083077A2 (en) 2007-12-29 2008-11-26 Hairbrush

Publications (2)

Publication Number Publication Date
EP2224830A2 EP2224830A2 (en) 2010-09-08
EP2224830B1 true EP2224830B1 (en) 2018-02-28

Family

ID=40719351

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Application Number Title Priority Date Filing Date
EP08867711.7A Active EP2224830B1 (en) 2007-12-29 2008-11-26 Bristle and method for producing a bristle

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US (1) US8414818B2 (en)
EP (1) EP2224830B1 (en)
JP (1) JP5204853B2 (en)
CN (2) CN101909485B (en)
DE (1) DE102007063154A1 (en)
RU (1) RU2469632C2 (en)
WO (1) WO2009083077A2 (en)

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Also Published As

Publication number Publication date
CN101909485B (en) 2012-11-07
CN102302272A (en) 2012-01-04
CN102302272B (en) 2016-05-11
JP2011506004A (en) 2011-03-03
WO2009083077A3 (en) 2009-11-26
CN101909485A (en) 2010-12-08
RU2469632C2 (en) 2012-12-20
JP5204853B2 (en) 2013-06-05
RU2010121721A (en) 2012-02-10
DE102007063154A1 (en) 2009-07-09
US8414818B2 (en) 2013-04-09
WO2009083077A2 (en) 2009-07-09
US20100282268A1 (en) 2010-11-11
EP2224830A2 (en) 2010-09-08

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