EP4255251A1 - Appareil de nettoyage pour l'hygiène buccale et procédé de production d'un appareil de nettoyage pour l'hygiène buccale - Google Patents

Appareil de nettoyage pour l'hygiène buccale et procédé de production d'un appareil de nettoyage pour l'hygiène buccale

Info

Publication number
EP4255251A1
EP4255251A1 EP21830963.1A EP21830963A EP4255251A1 EP 4255251 A1 EP4255251 A1 EP 4255251A1 EP 21830963 A EP21830963 A EP 21830963A EP 4255251 A1 EP4255251 A1 EP 4255251A1
Authority
EP
European Patent Office
Prior art keywords
cleaning
cleaning device
fiber material
handle
handle element
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.)
Pending
Application number
EP21830963.1A
Other languages
German (de)
English (en)
Inventor
Küros Schiffer
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.)
M&C Schiffer GmbH
Original Assignee
M&C Schiffer 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 M&C Schiffer GmbH filed Critical M&C Schiffer GmbH
Publication of EP4255251A1 publication Critical patent/EP4255251A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/005—Preparing, i.e. Manufacturing brush bodies by moulding or casting a body around bristles or tufts of 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
    • A46B3/005—Bristle carriers and bristles moulded as a unit
    • 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
    • A46B3/04—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by mouldable materials, e.g. metals, cellulose derivatives, plastics
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/01—Disposable brush
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures
    • A46B2200/108—Inter-dental toothbrush, i.e. for cleaning interdental spaces specifically

Definitions

  • Oral hygiene cleaning device and method of manufacturing an oral hygiene cleaning device are provided.
  • the invention relates to a cleaning device for oral hygiene, in particular a toothbrush, an interdental cleaning device or a dental floss holder, and a method for producing the cleaning device.
  • the invention relates to cleaning devices for personal oral hygiene, for example toothbrushes, rod-shaped interdental cleaning devices or dental floss holders.
  • cleaning devices are usually made predominantly from injection molded plastic.
  • EP 1110478 A1 discloses a method for producing a toothbrush by injection molding plastic.
  • EP 3569190 A1 discloses interdental cleaning devices made from thermoplastic material.
  • EP 3117797 A1 discloses a dental floss holder.
  • Plastic is largely made from fossil raw materials and its production thus contributes to the emission of carbon dioxide.
  • very few plastics are biodegradable, so that the disposal of plastic products leads to significant environmental pollution.
  • foamed plastic for this purpose is known from WO 2020/193760 A1.
  • the foamed plastic partially replaces the solid plastic that is otherwise used, which means that the amount of plastic is reduced overall while the stability of the cleaning device remains the same.
  • the cleaning device is formed almost entirely from non-biodegradable material.
  • the object of the present invention is to provide a cleaning device for oral hygiene, in particular a toothbrush, an interdental cleaning device or a Dental floss holder, which consists mainly of renewable, easily recyclable and environmentally friendly raw materials.
  • the cleaning device should have sufficient durability for daily use.
  • the object of the present invention is also to provide a method for producing such a cleaning device, with which the cleaning device can be produced inexpensively, in large numbers and with high quality.
  • the invention provides a cleaning device for oral hygiene.
  • the cleaning device comprises a cleaning element and a handle element connected to the cleaning element.
  • the cleaning device is characterized in that the grip element consists of an injection molded fiber material.
  • the invention also provides a method of manufacturing an oral hygiene cleaning implement.
  • the method comprises the steps: providing a cleaning element, producing a handle element by injection molding a fiber material and connecting the handle element to the cleaning element.
  • An essential element of the invention is the production of the handle element by injection molding of a fiber material.
  • Fiber material consists of renewable raw materials, such as wood fiber, and is therefore easily compostable or recyclable. Because the grip element is made of this environmentally friendly material, the amount of less environmentally friendly plastic used can be significantly reduced compared to conventional cleaning devices.
  • a cleaning device can thus be provided in which plastic is only used to form the actual cleaning element, ie for example the brush head of a toothbrush or the tip of an interdental cleaning device.
  • the handle element and thus by far the largest part of the cleaning device, on the other hand, can be formed from a fiber material.
  • a further advantage of the invention is that the durability of the handle element is increased by processing the fiber material by means of injection molding.
  • Injection molding makes it possible to produce molded parts with excellent mechanical properties from the fiber material. This means that more stable molded parts can be produced than with other processing methods that are customary for fiber materials.
  • processing by means of injection molding makes shaping easier, so that molded parts with the desired shape, for example ergonomically shaped toothbrush handles, can be produced without great effort.
  • the handle element can be manufactured using injection molding machines that ensure a high throughput and consistent product quality. This distinguishes processing by injection molding from other methods of processing fiber materials.
  • a suspension of the fiber material in the production of cardboard, a suspension of the fiber material must first be spread out on screens, dried and pressed into sheets before the cardboard can then be formed into shaped bodies by cutting and rolling the sheets.
  • the suspension of the fiber material in the case of injection molding, on the other hand, can be brought into the desired shape in one process step.
  • the cleaning device is in particular a device for personal oral hygiene, for example a toothbrush, a rod-shaped interdental cleaning device or a dental floss holder.
  • a cleaning device usually has a handle with which the cleaning device can be guided in one hand.
  • the handle of the cleaning device is formed entirely or partially from the handle element.
  • the handle is formed entirely from the material of the handle element.
  • the otherwise customary use of plastic to produce a handle can thus be dispensed with.
  • the handle it is also possible for the handle to have a core made of a material other than the fiber material of the handle element.
  • the core of the handle can consist of an injection-molded plastic, which is encased by the fiber material to form the handle element.
  • the fiber material replaces the usual overmoulding of the handle with a flexible plastic.
  • the handle element preferably forms at least part of the surface of the handle. Because the surface of the handle is made of fiber material, a pleasant feel is achieved.
  • the fibrous material preferably contains cellulose and preferably comprises wood pulp, semi-chemical pulp or chemical pulp.
  • Mechanical pulp is produced by defibration of plant material, particularly wood, and includes lignocellulose.
  • semi-pulp the lignin content is reduced compared to wood pulp.
  • pulp the lignin content is almost completely reduced by chemical pulping processes.
  • the fiber material can be made, for example, from wood, in particular softwood or deciduous wood, straw, hemp, cotton, flax, bamboo, bagasse and/or kenaf. be won.
  • the fiber material can preferably also include waste paper.
  • the fiber material consists of waste paper.
  • the fiber material can include rags, ie vegetable fibers that are obtained from textile waste, for example from cotton or linen.
  • the fiber material preferably does not include any synthetic fibers.
  • the fiber material preferably consists entirely of vegetable raw materials.
  • the fiber material preferably consists of fully compostable components.
  • the fiber material can also contain fillers and/or binders.
  • Chalk is preferably used as a filler.
  • Polylactides are preferably used as binders, in particular polylactides obtained from corn starch.
  • the cleaning element has, for example, one or more bristle filaments or flexible cleaning elements, a bristle carrier with bristle filaments or flexible cleaning elements attached thereto, or a dental floss thread.
  • the cleaning element is at least partially covered with the fiber material of the handle element and is thereby connected to the handle element. Accordingly, the cleaning element comprises at least one connecting section via which the connection to the handle element is established.
  • the handle element is positively connected to the connecting section.
  • the connecting section of the cleaning element is pre-treated in order to enable better adhesion to the fiber material of the handle element.
  • the surface of the connecting section can be roughened before it is connected to the grip element in order to improve the adhesion of the fiber material.
  • the connecting portion has a hydrophilic surface.
  • the connecting section preferably consists of an injection molded plastic, preferably of polyethylene, polypropylene, polyamide, polyethylene terephthalate and/or polybutylene terephthalate.
  • Polyethylene terephthalate and polybutylene terephthalate are particularly preferred because of their high adhesion compatibility with the fiber material.
  • the cleaning element has one or more bristle filaments or flexible cleaning elements.
  • the bristle filaments are preferably made from a thermoplastic material and are preferably combined into one or more bristle bundles.
  • the flexible cleaning elements are preferably made of an elastomer and have, for example, the shape of knobs or lamellae.
  • the bristle filaments or flexible cleaning elements are attached directly to the fiber material of the handle element.
  • the bristle filaments are attached to the handle element by anchors embedded in the fiber material of the handle element.
  • the anchors are preferably made of metal. For example, small metal plates, which are wrapped with the bristle filaments, can serve as anchors.
  • the anchors can either be pressed into the fibrous material of the grip element or can be overmoulded with the fibrous material during manufacture of the grip element.
  • the bristle filaments or flexible cleaning elements can also be attached to the handle element without anchors.
  • the bristle filaments or flexible cleaning elements can be encapsulated by the fiber material of the grip element at their fastening-side ends and thus embedded with their fastening-side ends in the fiber material of the bristle carrier.
  • thickenings which are surrounded by the fiber material, are preferably formed on the fastening-side ends of the bristle filaments or flexible cleaning elements.
  • the bristle filaments or flexible cleaning elements are attached to a separate bristle carrier.
  • the cleaning element is in particular a bristle carrier for a toothbrush with bristle filaments or flexible cleaning elements attached thereto.
  • the bristle carrier is preferably made of injection molded plastic.
  • the bristle carrier can be designed in the form of a section of a brush head.
  • the bristle carrier has the form of a relatively thin plate, which primarily serves to attach bristle filaments and/or flexible cleaning elements.
  • the bristle carrier is partially covered with the fiber material of the handle element to form the complete brush head.
  • the surface of the bristle carrier covered by the fiber material thus serves as a connecting section.
  • An advantage of this variant is a comparatively large contact surface between the bristle carrier and the grip element and a reduction in the amount of plastic required for the toothbrush.
  • the bristle carrier can also completely form the brush head. In this variant, no fiber material is used to form the brush head.
  • the connecting section with which the bristle carrier is connected to the handle element, is provided in the area of the toothbrush neck or the toothbrush handle.
  • the brush head and brush neck are therefore predominantly made of the material of the bristle carrier.
  • the grip element which is made of fiber material, does not have to be inserted into the oral cavity and thus not through saliva can be softened.
  • the bristle carrier is lengthened to form a handle body, the handle body forming the core of the toothbrush handle and being encased by the fiber material of the handle element.
  • Bristle filaments and/or flexible cleaning elements are attached to the bristle carrier.
  • the bristle filaments and/or flexible cleaning elements protrude from the bristle carrier on at least one side, so that they can be used to clean teeth and/or oral mucosa.
  • the bristle filaments are preferably combined into one or more bristle bundles.
  • the bristle filaments are attached to the bristle base, for example, by anchors pressed into the material of the bristle base.
  • the anchors are preferably made of metal. For example, small metal plates, which are wrapped with the bristle filaments, can serve as anchors.
  • the bristle filaments or flexible cleaning elements can also be attached to the bristle carrier without anchors.
  • the bristle filaments or flexible cleaning elements can be encapsulated by the material of the bristle base at their fastening-side ends and thus embedded with their fastening-side ends in the material of the bristle base.
  • thickenings are preferably formed on the fastening-side ends of the bristle filaments or flexible cleaning elements, which are overmoulded with the material of the bristle carrier. It is also possible for the bristle carrier to have through bores through which bristle filaments or flexible cleaning elements can be pushed.
  • the bristle filaments or the flexible cleaning elements each have thickenings on their fastening-side end which abut positively on one side of the bristle carrier and prevent the bristle filaments or the flexible cleaning elements from being pulled out of the through bores.
  • the handle element preferably forms at least part of a toothbrush handle.
  • the handle element preferably forms a depression in the area of the toothbrush handle, which serves as a thumb rest. This increases the ergonomics of the cleaning device.
  • the toothbrush handle can be formed completely from the fiber material, with the connection to the cleaning element only taking place in the area of the toothbrush neck or the toothbrush head.
  • the toothbrush handle it is also possible for the toothbrush handle to have a core made of a material other than the fiber material of the handle element.
  • the core of the toothbrush handle can consist of the material of the bristle carrier, which is encased by the fiber material to form the handle element. This core is preferably made in one piece with the bristle carrier.
  • the grip element forms at least part of the surface of the toothbrush handle. Because the surface of the toothbrush handle is made of fiber material, a pleasant feel is achieved.
  • the cleaning element is a bristle carrier for an interdental cleaning device.
  • the bristle carrier is preferably designed with a rod-shaped base. The length and diameter of the rod-shaped base are adjusted in such a way that the cleaning element can be inserted into the narrow interdental spaces in order to clean the tooth surfaces there.
  • the rod-shaped base can consist, for example, of wires twisted together, in particular metal or plastic wires, or of an injection-molded plastic.
  • bristle filaments are attached to the rod-shaped base. The bristle filaments are preferably combined into one or more bristle bundles. The bundles of bristles are preferably clamped between the twisted wires.
  • the tufts of bristles may also be attached to an injection molded plastic base, for example by overmoulding their attachment ends.
  • flexible cleaning elements are attached to the rod-shaped base.
  • the rod-shaped base preferably consists of an injection-molded plastic, in particular a flexible plastic.
  • the flexible cleaning elements can be formed from the material of the rod-shaped base, or they can be formed from a different material and partially encapsulated by the material of the rod-shaped base.
  • the bristle filaments and/or the flexible cleaning elements preferably protrude from the rod-shaped base transversely, in particular at right angles, to the longitudinal axis of the rod-shaped base.
  • the handle element is preferably rod-shaped and extends in particular in the longitudinal direction of the rod-shaped base of the cleaning element.
  • the length and diameter of the handle element are preferably adapted in such a way that the handle element can be held comfortably and securely between two fingers.
  • the grip element preferably has at least one holding section. In the area of the holding section, the otherwise preferably rod-shaped gripping element is flattened, and the holding section is particularly preferably plate-shaped.
  • the holding section thus offers a larger gripping surface and can be held securely between thumb and forefinger, for example.
  • the holding section preferably consists entirely of the fiber material. Accordingly, the fiber material in the area of the holding section is preferably not injected around a core made of a different material, for example plastic.
  • the cleaning element is a thread of dental floss.
  • the thread of dental floss preferably consists of one or more filaments, preferably of filaments twisted together.
  • the twisted filaments fan out when used and thus offer an improved cleaning effect.
  • the filaments are preferably made of plastic.
  • the thread of dental floss is attached at one or both of its ends.
  • One or both ends of the thread of dental floss may be connected directly to the fibrous material of the handle member.
  • attachment sections of a different material can be provided at one or both ends of the thread of dental floss, so that the fibrous material is connected to these attachment sections. A stronger anchoring of the thread of dental floss in the material of the handle element is thus possible.
  • Fastening sections in the form of thickenings are preferably provided at one or both ends of the thread of dental floss. These thickenings can be embedded in the material of the grip element in order to enable the thread of dental floss to be firmly attached to the grip element.
  • the attachment sections are preferably made of plastic, for example polyethylene, polypropylene, polyamide, polyethylene terephthalate and/or polybutylene terephthalate.
  • the cleaning device is a dental floss holder, in particular a so-called dental floss stick or a dental fiddle.
  • the cleaning element comprises a thread of dental floss as described above.
  • the grip element preferably forms two arms between which the thread of dental floss is stretched.
  • the thread of dental floss is preferably connected to the handle element at both of its ends.
  • the cleaning element comprises a thread of dental floss and an additional holding device.
  • the holding device is made of a different material than the handle element, for example plastic.
  • the holding device preferably forms two arms between which the thread of dental floss is stretched. These arms preferably correspond to the attachment sections mentioned above.
  • the holding device forms a connecting section which is connected to the grip element.
  • the cleaning element is manufactured by methods known per se.
  • the cleaning element can therefore be used as a prefabricated finished part.
  • the handle element is produced by injection molding a fiber material.
  • the fiber material is injection molded in an injection mold provided for this purpose.
  • the fiber material is preferably drawn into an injection molding unit as granules and extruded to form a melt by means of temperature and friction.
  • the melt is injected into the injection mold.
  • injection molding preferably uses a melt with a higher proportion of fiber material and thus a higher viscosity.
  • the cleaning element is overmoulded with the fiber material at least in sections in order to connect the handle element to the cleaning element.
  • the cleaning element has a connecting section, which is inserted into the injection mold for producing the handle element and overmoulded with the fiber material. The manufacture of the handle element and the connection of the handle element to the cleaning element take place at the same time.
  • the handle element is produced independently of the cleaning element by injection molding and is then connected to the cleaning element.
  • the handle element is preferably glued or screwed to the cleaning element.
  • Glue or an acrylate-containing adhesive, preferably water-based acrylate-containing adhesive, is preferably used as the adhesive.
  • the cleaning device is first encapsulated in sections with a plastic in order to form a connecting section.
  • the plastic used here is preferably polyethylene, polypropylene, polyamide, polyethylene terephthalate and/or polybutylene terephthalate. Polyethylene terephthalate and polybutylene terephthalate are particularly preferred because of their high adhesion compatibility with the fiber material.
  • this connecting section is preferably placed in the injection mold for producing the grip element and overmoulded with the fiber material.
  • the connection section can be glued to a separately produced grip element, as described above.
  • the handle element is positively connected to the connecting section provided on the cleaning element; in particular, the connecting section is overmoulded with the fiber material in such a way that a positive connection results.
  • the connecting section provided on the cleaning element is pretreated in order to achieve better adhesion of the handle element.
  • the connecting section is preferably mechanically roughened and/or provided with an adhesion promoter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Brushes (AREA)

Abstract

L'invention concerne un appareil de nettoyage pour l'hygiène buccale, comprenant un élément de nettoyage et un élément de préhension relié à l'élément de nettoyage. L'appareil de nettoyage est caractérisé en ce que l'élément de préhension est constitué d'un matériau fibreux moulé par injection. L'invention concerne également un procédé pour produire un appareil de nettoyage pour l'hygiène buccale. Le procédé comprend les étapes consistant à fournir un élément de nettoyage, produire un élément de préhension par moulage par injection d'un matériau fibreux et relier l'élément de préhension à l'élément de nettoyage.
EP21830963.1A 2020-12-03 2021-12-02 Appareil de nettoyage pour l'hygiène buccale et procédé de production d'un appareil de nettoyage pour l'hygiène buccale Pending EP4255251A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020132142.2A DE102020132142A1 (de) 2020-12-03 2020-12-03 Reinigungsgerät für die Mundhygiene und Verfahren zur Herstellung eines Reinigungsgeräts für die Mundhygiene
PCT/EP2021/083912 WO2022117705A1 (fr) 2020-12-03 2021-12-02 Appareil de nettoyage pour l'hygiène buccale et procédé de production d'un appareil de nettoyage pour l'hygiène buccale

Publications (1)

Publication Number Publication Date
EP4255251A1 true EP4255251A1 (fr) 2023-10-11

Family

ID=79025103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21830963.1A Pending EP4255251A1 (fr) 2020-12-03 2021-12-02 Appareil de nettoyage pour l'hygiène buccale et procédé de production d'un appareil de nettoyage pour l'hygiène buccale

Country Status (4)

Country Link
US (1) US20240008633A1 (fr)
EP (1) EP4255251A1 (fr)
DE (1) DE102020132142A1 (fr)
WO (1) WO2022117705A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023102091A1 (de) 2023-01-18 2024-07-18 WARIMEX Waren- Import Export Handels-GmbH Zahnbürste mit flexiblem Zahnbürstenkopf
DE102023003411B3 (de) 2023-08-18 2024-07-18 Hermann Klaas Multifunktionszahnreinigungsgerät

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19962188A1 (de) 1999-12-22 2001-09-06 Schiffer Fa M & C Verfahren zur Herstellung eines Bürstenkopfes im Wege des Spritzgiessens
AU2007314135B2 (en) * 2006-11-03 2013-11-07 Tristano Pty Ltd Personal grooming tool
ITTO20130060U1 (it) * 2013-04-11 2014-10-12 Spada Forniture Di Spada Giuseppe Dispositivo di pulizia dentale.
US20150097309A1 (en) * 2013-10-04 2015-04-09 The Procter & Gamble Company Process and apparatus for making tufted article
DE14158195T1 (de) 2014-03-06 2015-03-12 Tepe Munhygienprodukter Ab Interdentalreiniger
EP3117797B1 (fr) 2015-07-15 2017-11-01 M+C Schiffer GmbH Support de fil dentaire avec cure-dent
JP6925776B2 (ja) 2015-12-18 2021-08-25 小林製薬株式会社 歯間清掃具
JP7339490B2 (ja) 2017-12-28 2023-09-06 サンスター スイス エスエー 歯間清掃具
DE102019204397A1 (de) 2019-03-28 2020-10-01 M+C Schiffer Gmbh Bürste, insbesondere Zahnbürste, und Verfahren zu deren Herstellung
TWM618158U (zh) 2021-05-17 2021-10-11 邱俊杰 紙製之齒縫清潔裝置

Also Published As

Publication number Publication date
DE102020132142A1 (de) 2022-06-09
US20240008633A1 (en) 2024-01-11
WO2022117705A1 (fr) 2022-06-09

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