HYGIENE PRODUCTS, ESPECIALLY ORAL HYGIENE PRODUCTS

Description

State of the art

[0001] The invention relates to a hygiene product, in particular an oral hygiene product.

[0002] Hygiene products, in particular oral hygiene products, with at least one application unit, with at least one handle unit connected to the application unit, and with at least one volumetric body which at least partially forms the application unit and / or the handle unit and which consists at least partially of a foamed material, are already known from EP 0 758 534 B1 and US 4,283,808. WO 2016 / 105364 A1 discloses a toothbrush with a handle part that may consist of injection-molded components.

[0003] Furthermore, a hygiene product is already known from DE 20 2004 015 133 U1.

[0004] The object of the invention is, in particular, to provide a generic device with improved properties with regard to material efficiency, weight, and / or ergonomics. This object is achieved according to the invention by the features of claims 1 and 14, while advantageous embodiments and further developments of the invention can be found in the dependent claims. Advantages of the invention

[0005] The invention relates to a hygiene product, in particular an oral hygiene product, with at least one application unit, with at least one handle unit connected to the application unit and with at least one volume body which at least partially forms the application unit and / or the handle unit and which consists at least partially of a foamed material.

[0006] It is proposed that the hygiene product comprises at least one base body connected to the bulk body, which at least partially forms the application unit and / or the handle unit, wherein the at least one bulk body is molded onto the at least one base body. The bulk body is preferably produced by a foaming process and, in particular, forms at least a part of the handle unit and / or the application unit.

[0007] Preferably, the hygiene product consists of an application unit with bristles and a handle unit, the application unit in particular having a neck area that connects the application unit to the handle unit. All components can consist of at least one hard and / or one or more soft components and / or a foamed material. Conventional hard and / or soft components or sustainable hard and / or soft components can be used.

[0008] The design of the hygiene product according to the invention provides advantageous ergonomic properties. In particular, the handle unit can be made easier to grip. Furthermore, the weight of the hygiene product can be kept low, especially without compromising its ergonomics, particularly its grip. A lightweight yet substantial body can be provided. For example, a lightweight yet substantial toothbrush can be manufactured. This makes the hygiene product particularly lightweight, and its surface is soft and warm to the touch. In particular, the amount of material required for the hygiene product can be kept to a minimum. This allows for a particularly environmentally friendly hygiene product to be provided.

[0009] The term "hygiene device" shall be understood to mean, in particular, an oral hygiene device, preferably a toothbrush. Alternatively, the hygiene device may consist of a hair removal device, such as, in particular, a shaving brush handle or a wet razor, and / or a hairbrush, in particular an elongated hairbrush handle or a hairbrush handle, for example, in the form of a bowl (into which the bristles are placed). Furthermore, it would be conceivable that the hygiene device consists of a cosmetic applicator, such as, in particular, a mascara brush handle or a mascara applicator, a mascara container, a nail polish brush handle, a nail polish brush container, a facial brush, a makeup applicator handle, and / or a makeup container.Alternatively, the hygiene product can be understood to be a household item, such as, in particular, a handle on the handle of a dish brush, a toilet brush handle, a floor mop handle, a dustpan handle, and / or a broom handle. Furthermore, the hygiene product can be packaging and / or an aid, such as, in particular, a dental floss box, a cream jar, and / or a facial brush base. The term "oral hygiene product" is understood to include, in particular, a toothbrush and / or an interdental cleaner and / or an interdental brush and / or a flosser and / or a tongue cleaner and / or a toothpick. Advantageously, the oral hygiene product is designed as a toothbrush, in particular a manual toothbrush, preferably a child's or adult's toothbrush, and preferably a purely manual toothbrush.The oral hygiene product can be designed as a disposable toothbrush, a reusable toothbrush, a replaceable head toothbrush, a single-tuft brush, an electric toothbrush, in particular a housing of an electric toothbrush, as well as a hybrid toothbrush, an interdental cleaner, in particular with twisted bristles, in injection form or as a flosser, a tongue cleaner and / or as a dental floss box.

[0010] The hygiene product has, in particular, a longitudinal axis which is advantageously arranged at least substantially parallel to a principal direction of extension of the hygiene product. Preferably, the longitudinal axis runs at least partially within the hygiene product and, in particular, through its center of gravity. In particular, the longitudinal axis of the hygiene product is a central axis of the hygiene product and / or a central axis of the handle unit. A "central axis" of an object is understood to be, in particular, an imaginary axis that runs within the object parallel to a principal direction of extension of the object and intersects the object at no more than two points.The term "at least substantially parallel" here refers in particular to an orientation of a direction relative to a reference direction, especially in a plane, wherein the direction has a deviation from the reference direction of particularly less than 8°, advantageously less than 5°, and most advantageously less than 2°. The term "principal extension direction" of an object refers in particular to a direction that runs parallel to a longest edge of the smallest imaginary cuboid that just completely encloses the object. In this context, the term "principal extension" of an object refers in particular to the extension of a longest edge of the smallest imaginary cuboid that just completely encloses the object.

[0011] In particular, the hygiene device has a length, especially parallel to its longitudinal axis and measured parallel to the contact surface, of 140 mm to 210 mm and preferably of 165 mm to 195 mm, although other lengths, especially shorter or longer ones, are of course conceivable. In particular, the hygiene device has a maximum width, especially parallel to a lateral axis of the hygiene device, advantageously perpendicular to its longitudinal axis and / or parallel to a principal plane of extension of the hygiene device and / or the handle unit, of 10 mm to 20 mm and preferably of 12 mm to 17 mm. Furthermore, the hygiene device with incorporated filaments / bristles has a height, especially parallel to its vertical axis measured perpendicular to the contact surface, of 12 mm to 25 mm and preferably of 15 mm to 19 mm.The term "height" here refers in particular to the state of the hygiene product in which it is placed, for example, on a surface such as a tabletop, a sink, the top of a piece of furniture, or the like, especially in such a way that its longitudinal axis is parallel to the surface. A "principal plane of extension" of an object is understood to be, in particular, a plane that is parallel to a major face of the smallest imaginary cuboid that just completely encloses the object and passes through the center of the cuboid.

[0012] Advantageously, the application unit has at least one cleaning area intended for dental cleaning, particularly in the user's oral cavity. Preferably, the cleaning area comprises at least one cleaning unit, in particular at least one brush head, advantageously a toothbrush head, preferably with multiple bristles and / or bristle bundles and / or injection-molded cleaning elements or injection-molded bristles and / or soft, elastic cleaning elements. However, the cleaning unit can also be designed, for example, as an interdental brush and / or as a single tuft (e.g., a single large bristle bundle) and / or as a floss-covered bow, in particular as a flosser, or the like. Furthermore, the application unit advantageously has at least the neck element, which is preferably connected to the cleaning area, in particular directly and / or integrally.The term "one-piece" is to be understood in particular as being joined at least by a material bond, for example by a welding process, an adhesive bonding process, an injection molding process, and / or another process that would appear appropriate to a person skilled in the art, and / or advantageously formed in one piece, such as by being manufactured from a single casting and / or by being manufactured using a single- or multi-component injection molding process, and advantageously from a single blank. The term "intended" is to be understood in particular as being specifically designed and / or equipped. The fact that an object is intended for a specific function is to be understood in particular as the object fulfilling and / or performing this specific function in at least one application and / or operating condition.

[0013] The hygiene device has, in particular, a front and a back, which are preferably arranged facing away from each other. Preferably, the cleaning area is located on the front of the hygiene device. The front is, in particular, a side of the hygiene device visible in a viewing direction perpendicular to both its longitudinal and transverse axes. The front of the hygiene device is specifically the side of the brush on which the thumb rests. The front is also normally the side towards which the bristles are directed. The back is advantageously a side of the hygiene device visible in the opposite viewing direction. The back of the hygiene device is the side of the toothbrush opposite the bristles.The left side of the hygiene product refers specifically to the side that is on the left when viewed perpendicularly from the front. The right side refers specifically to the side that is on the right when viewed perpendicularly from the front. The top refers specifically to the end of the hygiene product where the cleaning area is located. The bottom refers specifically to the end of the hygiene product opposite the top, which is closest to the handle.

[0014] Preferably, the handle unit has at least one handle element, which is advantageously designed for one-handed gripping. Preferably, the handle element is at least partially tapered. This advantageously allows for a secure grip and optimizes ergonomics. Particularly preferably, the handle element is elongated, with one longitudinal axis of the handle element advantageously corresponding to the longitudinal axis of the hygiene product. The handle element particularly includes a grip body that constitutes a substantial volume of the handle element. The handle element is at least partially formed from at least one hard component and / or one or more soft components and at least one foamed material. In particular, the handle element advantageously includes at least one thumb grip area and / or at least one hand grip area.Advantageously, the thumb grip area is located on the front of the hygiene product, and particularly on the front of the handle element. It is conceivable that the thumb grip area and / or the handle area could comprise at least one element and / or a surface texture made of at least one soft component and / or at least one hard component and / or at least one foamed material.

[0015] The components or materials used in the manufacturing process can be classified as follows – this applies, among other things, to soft components, hard components and foamed material: Conventional materials or components: Materials, essentially virgin materials, that are largely oil-based. Sustainable materials or components: As listed below and described later, preferably bio-based, biodegradable, and / or recycled. Bio-based materials or components: Material that is made from renewable raw materials, preferably more than 60%, preferably more than 80%, and most preferably 100%. A further possible additional property of bio-based materials is, in particular, that they are biodegradable. Preferably, the materials are not based on foodstuffs such as corn, etc. Biodegradable materials or components: Material that is biodegradable according to current standards. This includes, in particular, compostability (industrially or non-industrially).Materials made from renewable resources, especially petrochemical raw materials, can possess this property. Recycled materials or components: Materials that originate from a recycling process, such as post-consumer recycled materials, ocean waste plastic, or social plastic.

[0016] The materials or components used can be recyclable. For recyclable materials, a recycling option is advantageous after use.

[0017] Within the scope of this disclosure, virtually any hard and soft components are eligible, which the person skilled in the art will suitably combine and / or select. Examples of hard components include styrene polymers such as styrene acrylonitrile (SAN), polystyrene (PS), acrylonitrile butadiene styrene (ABS), styrene methyl methacrylate (SMMA), styrene butadiene (SB), or the like. Furthermore, a hard component can comprise polyolefins such as polypropylene (PP), polyethylene (PE), or the like, particularly also in the form of high-density polyethylene (HDPE) or low-density polyethylene (LDPE). Furthermore, polyesters such as polyethylene terephthalate (PET), especially in the form of acid-modified polyethylene terephthalate (PETA), glycol-modified polyethylene terephthalate (PETG), polybutylene terephthalate (PBT), acid-modified polycyclohexylenedimethyl terephthalate (PCT-A), glycol-modified polycyclohexylenedimethyl terephthalate (PCT-G) or the like, are also suitable.Furthermore, the use of cellulose derivatives such as cellulose acetate (CA), cellulose acetobutyrate (CAB), cellulose propionate (CP), cellulose acetate phthalate (CAP), cellulose butyrate (CB), or the like is conceivable. A hard component can also include, for example, polyamides (PA) such as PA 6.6, PA 6.10, PA 6.12, or the like, polymethyl methacrylate (PMMA), polycarbonate (PC), polyoxymethylene (POM), polyvinyl chloride (PVC), polyurethane (PUR), polyamide (PA), or the like. In particular, polyethylene (PE) and / or polyurethane (PU) can be used as a hard component and / or as a soft component. In particular, a hard component has a modulus of elasticity of at least 1000 N / mm² and advantageously at least 1300 N / mm² and / or at most 2400 N / mm² and advantageously at most 1800 N / mm². Polypropylene (PP) is preferably used as the hard component.At least some of the materials listed under the hard component can be sustainable. In particular, materials containing cellulose are at least partially bio-based.

[0018] Hard components are advantageously used for stable and / or structural elements, particularly in the handle element and / or a support element of the application unit and / or interface geometry, for example, for interchangeable heads or the like. Preferably, the hard component is used for elements whose durability must be ensured. Preferably, the hygiene product, or at least a base body of the hygiene product, comprises a single hard component, which may be made of one of the aforementioned materials or a mixture thereof. However, combinations of different hard components are also conceivable, whereby these may, for example, be processed in a two- and / or multi-component injection molding process and / or bonded and / or welded together, in particular by ultrasonic welding.Alternatively or additionally, several hard components can be used that do not form a material bond in a two- or multi-component injection molding process. In particular, it is conceivable that in this case, a form-fit connection is created between the hard components, for example, in the form of at least one undercut and / or at least one through-hole and / or at least partial overmolding or the like. It is conceivable that, for example, a second hard component, which is injected onto a first hard component, shrinks after injection molding and advantageously forms a shrinkage bond with the first hard component. Suitable combinations could be, for example, polypropylene-polyester, polypropylene-styrene acrylonitrile, or other combinations.

[0019] Suitable soft components include, for example, thermoplastic styrene elastomers (TPE-S) such as a styrene-ethylene-butylene-styrene copolymer (SEBS), a styrene-butadiene-styrene copolymer (SBS), or the like. The use of thermoplastic polyurethane elastomers (TPE-U), thermoplastic polyamide elastomers (TPE-A), thermoplastic polyolefin elastomers (TPE-O), thermoplastic polyester elastomers (TPE-E), or the like is also conceivable. Furthermore, a soft component can, for example, comprise at least one silicone. Advantageously, a soft component has a Shorte-A hardness of at most 90, more advantageously of at most 50, and particularly advantageously of at most 30. Preferably, at least one soft component forms a material bond with at least one hard component, particularly in at least one two- and / or multi-component injection molding process, advantageously by means of at least one overmolding and / or overmolding.The materials listed under the soft component can be sustainable materials.

[0020] Within the scope of this disclosure, virtually any foamed material is suitable, which a person skilled in the art will combine and / or select appropriately. According to the invention, the foamed material is formed from a particle foam of expanded components. Components that are expandable are indicated, in particular, by an "E" in the designation. The foamed material can be made from a rigid component, resulting in a rigid foam. For example, the foamed material can consist of expanded polystyrene (EPS), expanded polyethylene (EPE), expanded polypropylene (EPP), expanded polyethylene terephthalate (EPET), and / or expanded polybutylene terephthalate (EPBT) as the base component. A foam based on cellulose or PLA is also possible. The foamed material can also be made from a flexible component, resulting in a flexible foam.The foamed material can consist, for example, of expanded thermoplastic polyurethane (ETPU) as a base component. Preferably, the foamed material comprises pentane in the base component. The pentane serves, in particular, as a blowing agent. The pentane is responsible for the volume increase during the manufacturing process. In particular, the addition of pentane ensures storability. Furthermore, biodegradable components are also possible for the foamed material. For sustainability, a foam that is completely biodegradable would be particularly conceivable. For example, a foam based on vegetable oil, such as palm oil, and / or based on PLA, i.e., specifically based on plant starch / cellulose and water, is conceivable.

[0021] The foamed material is primarily produced from expandable granules. It can be made from either a hard or soft component. The foamed material is typically a closed-cell foam. Several granule production methods are conceivable, each deemed suitable by an expert. For example, the material can be foamed in an autoclave reactor. In the first step, the granules, such as polypropylene (PP), are introduced into the autoclave and mixed with a readily evaporating hydrocarbon. Upon subsequent emptying of the autoclave, the granules expand and form beads. Color options for the foamed material are very limited using this method, with white and gray being the most common choices. Alternatively, the material can be produced in an extruder.In the first step, the extruder is loaded with a melt and blowing agent and extruded. The extruded material is then cut with knives, forming beads. Colors can be added directly during this process. This method offers more coloring options. A key advantage is the higher temperature resistance of the expanded granules, although higher processing pressures, particularly steam pressures, are required for shaping.

[0022] The expanded granules for the foamed material are particularly buoyant and have a density of 0.01 g / cm³ to 0.5 g / cm³, preferably 0.02 g / cm³ to 0.3 g / cm³. Due to the low density of the foamed material, the finished hygiene product, which may consist of other foamed and / or non-foamed materials or components, also preferably remains buoyant. Preferably, the average density of the finished hygiene product is below 0.9 g / cm³, more preferably below 0.7 g / cm³, and particularly preferably below 0.5 g / cm³. Besides buoyancy, this also allows for very easy and convenient handling. Benchmark polypropylene, in comparison, has a density of approximately 0.9 g / cm³ to 1 g / cm³.

[0023] Furthermore, the expanded granules used in the foamed material exhibit particularly good thermal insulation. Due to its low thermal conductivity, the material feels warm to the touch, resulting in a very pleasant feel, especially compared to an injection-molded (i.e., processed using injection molding) plastic component. The thermal conductivity of the expanded granules used in the foamed material is preferably between 10 W / (m*K) and 70 W / (m*K), and ideally between 25 W / (m*K) and 45 W / (m*K).

[0024] The foamed material has a pleasantly soft feel. Preferably, the surfaces formed with the foamed material have a Shore A hardness of less than 90, preferably less than 70, and particularly preferably less than 50. If surfaces of the hygiene product are formed from a soft material, the soft material with a lower Shore hardness than the foamed material is preferably selected. The density of the foamed material is adjusted accordingly to achieve the preferred Shore hardness.

[0025] Furthermore, the expanded granules in the foamed material exhibit a damping function. In particular, an acoustic noise reduction can be achieved, especially by 10% to 50%, preferably by 15% to 30%.

[0026] The particle size of the expanded granules for the foamed material is particularly from 0.5 mm to 5 mm, preferably from 1 mm to 3 mm. Furthermore, the expanded granules for the foamed material exhibit a shrinkage after processing of 0.5% to 5%, preferably from 1% to 2%. Additionally, the expanded granules for the foamed material exhibit a heat deflection stability of 100°C to 180°C, preferably from 110°C to 150°C. The recycled content in the granules can be up to 90%. Preferably, the expanded granules have uniform particle sizes to ensure a smooth surface of the foamed material.

[0027] Furthermore, the foamed material can be colored. In particular, color can be integrated into the foamed material. For example, a continuous color can be created throughout the foamed material. Alternatively or additionally, translucent foams can also be used. This allows for the creation of specific visual effects on the foamed part.

[0028] The acoustic damping function can be particularly advantageous in the housings of electric toothbrushes. The housing of the electric toothbrush can be partially or completely lined with foamed material. The corresponding sections dampen the noise generated by the drive unit and gears during operation.

[0029] It is advantageous to consider that a hard component, a soft component, and / or a foamed material used could have different colors, allowing surface textures, lettering, motifs, and the like to be achieved through appropriate design of the hard component, the soft component, and / or the foamed material. In particular, the surfaces of the various components or materials can have different surface roughness levels.

[0030] Furthermore, it is proposed that the at least one application unit comprises a brush head, in particular a toothbrush head. The application unit advantageously comprises at least one cleaning unit, in particular a toothbrush head, with bristles. The cleaning unit also advantageously comprises at least one bristle carrier, for example, a brush head body. At least some or all of the bristles are advantageously conventional, extruded bristles. The bristles can, in particular, comprise at least one hard component and / or at least one soft component. Preferably, the bristles are made at least partially or completely of polyamide (PA) and / or polyester (PBT, PET), whereby any other materials are conceivable, including sustainable materials. Furthermore, it is conceivable that at least some of the bristles have a tapered tip and / or a variable cross-section.Preferably, the bristles are made from a single component or material, including a mixture. However, bristles with several unmixed components are also conceivable, which can be produced and / or manufactured, in particular, by at least one co-extrusion process. The bristles can be produced and / or manufactured, for example, by extrusion, cutting to length, and / or post-processing. In contrast to injection-molded bristles or rubber-elastic massage and cleaning elements, which are manufactured by injection molding, conventional bristles are extruded, cut, and attached to the toothbrush handle using a suitable process, such as the anchor punching process, the AFT process, and / or the IMT process, which also determines when the bristles are further processed, for example, when they are profiled and / or rounded.

[0031] In particular, cylindrical or pointed bristles with a round cross-section are suitable, although any other cross-sections such as polygonal, triangular, rectangular, square, elliptical, star-shaped, trapezoidal, parallelogram-shaped, rhombus-shaped, or any other cross-sections are conceivable. In particular, different bristles can be used within a single bristle bundle, as well as different bristle bundles, especially each containing a specific type of bristle. Bristles and / or bristle bundles can be arranged regularly or irregularly. In particular, bristles and / or bristle bundles arranged in groups and / or adjacent to one another can differ with respect to at least one characteristic, such as length, diameter, material, color, material hardness, geometry, point, and the like, especially in an alternating manner.Preferably, the bristles for use in oral hygiene have a diameter, particularly perpendicular to their longitudinal axis, of at least 0.075 mm and / or at most 0.25 mm. Advantageously, the bristles have a cross-sectional area, particularly perpendicular to their longitudinal axis, of at least 0.002 mm² and / or at most 0.2 mm². In the case of bristles used in cosmetics, for example, bristles of an additional application element, thinner bristles and / or bristles with a smaller cross-section can also be used, in particular bristles with a diameter, particularly perpendicular to their longitudinal axis, of at least 0.025 mm and / or at most 0.2 mm and / or with a cross-sectional area, particularly perpendicular to their longitudinal axis, of at least 0.001 mm² and / or at most 0.15 mm².In the case of pointed bristles, polyester (PBT, PET) is particularly suitable as a material, although sustainable materials are also possible. The pointing can be produced mechanically and / or chemically. Other materials are also conceivable. Preferably, the bristles are straight in the longitudinal direction, but wavy, twisted, helical, and / or coiled bristles are also conceivable, as are combinations of different bristles. Furthermore, bristles with a smooth surface are conceivable, as are bristles with a textured surface.

[0032] Furthermore, the bristles, particularly as bristle bundles, are preferably processed by at least one anchor punching process, an anchor-free tufting (AFT) process, an in-mold tufting (IMT) process, a PTt process, or the like, and are attached, in particular, to the bristle carrier. Preferably, the bristle carrier has a plurality of bristle receptacles, in particular holes for bristle bundles, which are drilled and / or formed during injection molding. In the case of anchor punching, for example, it is conceivable that a base body, in particular made of a hard component, preferably the brush head, is first manufactured by injection molding, advantageously forming blind holes for bristle bundles during the injection molding process. Of course, subsequent drilling of blind holes is also conceivable.Preferably, bristles or bristle bundles are then folded and fastened in a blind hole by means of at least one anchor, in particular by punching. A loop punching method is also conceivable.

[0033] Alternatively, as mentioned, anchorless methods are also conceivable, whereby bristles or bristle bundles are advantageously not folded. In this case, the bristles or bristle bundles are approximately half the length compared to an anchor punch. For example, it is conceivable that the bristle bundles are first separated, fused, and / or their non-functional bristle ends are subsequently overmolded, particularly for attachment. Bristle bundles can be advantageously combined in this process. Manufacturing using the in-mold tufting process is possible, whereby a base body, for example, the brush head and / or the handle unit and / or the attachment unit, is advantageously formed during the overmolding of the bristle ends.It is also conceivable that, particularly within the framework of an Integrated Anchorless Production, bristles are first overmolded with plates or the like, and these plates are then overmolded again, for example to form the brush head and / or the handle unit.

[0034] Furthermore, it is conceivable that the application unit is composed of a base body and a bristle plate, which is fitted with bristles and / or alternative cleaning elements. For this purpose, bristle plates with through holes are first manufactured by injection molding, through which bristles are then inserted. Preferably, the bristles are then connected on a back side, in particular fused, preferably to each other and / or to the corresponding bristle plate. Bristle plates fitted in this way can then be welded and / or bonded to a base body, in particular a brush head, preferably by ultrasonic welding. For this purpose, the base body, in particular the brush head, has a recess into which the bristle plate can be inserted.A well-known manufacturing method in this context is the anchor-free tufting process, which particularly facilitates the joining of bristle bundles. The underside of the bristle plate is specifically defined as the side that is placed in a recess of the base body and faces the back of the hygiene product. Similarly, the top side of the bristle plate faces the top of the hygiene product.

[0035] Another method for anchorless bristle application involves manufacturing, particularly by injection molding, a brush head with through-holes for bristles. Bristles can then be guided through the through-holes and fused on the back side, particularly to each other and / or to the brush head. Preferably, the fused areas and / or the brush head are then overmolded, particularly with at least one soft component. For this purpose, an AMR process, which in particular does not allow bristle bundles to merge, or an AMR+ process, which in particular allows bristles to merge, is suitable.

[0036] Furthermore, it is conceivable to first form a brush head with blind holes, for example by injection molding and / or by drilling the blind holes. In this case, bristles are bundled together and fused and / or otherwise joined at one end. The brush head is then heated, in particular to the glass transition temperature of its material. Bristle bundles can then be advantageously inserted into the blind holes and anchored to the brush head by pressing them in. In particular, the heated blind holes deform so that the bristle bundles are anchored in them. A known PTt process, for example, is suitable for this purpose.

[0037] As an alternative or in addition to stamped, welded, and / or glued bristles, injection-molded bristles are also conceivable. These can be manufactured together with the application unit, handle unit, and / or mounting unit during multi-component injection molding, or subsequently injection-molded onto a base body of the application unit. Injection-molded bristles should not be confused with conventionally extruded bristles, although they have similar dimensions. Due to the necessary demolding process in the injection mold, injection-molded bristles have a generally conical shape.

[0038] Another possible method for attaching bristles to the brush head is twisting. In this process, filament is fed from a spool, with several strands of filament wound onto a single spool. For machine feeding, several spools are pre-tensioned, as each filament in the brush corresponds to a single strand. The filaments are spread out to the correct width for insertion into the brush. The filaments are then advanced so that they are free for the next step, allowing a wire to be guided over them. A wire is then fed from a spool to the machine, i.e., unwound and fed into the process. The wire is cut to a length greater than the unwound length of the twisted brush; the final trimming to the correct length occurs after twisting.The wire is bent into a U-shape so that the open end can be slid over the filaments to thread the bristles. The wire is held at the base of the U. The open end of the wire is then clamped to hold the filaments between the wire pieces. The filaments are cut to a length greater than the final length required for the brush, ensuring the brush can be cut correctly once the filaments are twisted in. The wire is twisted to clamp and secure the filaments. After the filaments are fixed within the wire, they are cut to the correct length and shaped. Once the brush section is complete, any excess wire is trimmed.

[0039] Preferably, during an injection molding process, particularly a two-component and / or multi-component injection molding process, the materials of the injection-molded bristles do not form a material bond with other soft and / or hard components of the hygiene product. Instead, the injection-molded bristles are preferably joined by means of a form-fit connection, for example, by means of at least one undercut and / or at least one through-hole and / or by means of at least partial overmolding with soft and / or hard components, whereby a shrinkage bond and / or a shrinkage bond are particularly conceivable. However, a connection by means of at least one material bond and / or a material bond is also conceivable.

[0040] For all the injection molding processes mentioned, single-, two-, and / or multi-component injection molding is fundamentally possible. The materials used, especially different soft and / or hard components, can be joined by material bonding and / or form-fitting, as mentioned. The formation of articulated, movable, or flexible joints using suitable injection molding steps is also conceivable. Hot runner, cold runner, and / or co-injection processes are all generally suitable for injection molding.

[0041] Alternatively or additionally to a brush head with bristles, the application unit can also include at least one tongue cleaner and / or at least one alternative cleaning and / or massage element. These can each be made of a soft component, a hard component, or a combination of soft and hard components, and / or can be advantageously manufactured and / or produced by injection molding. Like the injection-molded bristles, the cleaning and / or massage elements are manufactured using injection molding. However, they differ from the injection-molded bristles in the significantly lower Shore hardness of the component or material used. Furthermore, cleaning and / or massage elements are considerably more voluminous than injection-molded bristles.

[0042] Preferably, injection-molded bristles are at least partially and advantageously entirely made of a thermoplastic polyurethane elastomer (TPE-U). The use of a modified polyurethane elastomer (TPE-U) is conceivable, which may be modified, in particular, with regard to improved flow properties and / or rapid solidification, especially rapid crystallization, advantageously even at higher temperatures. Of course, other materials are also conceivable, for example, thermoplastic polyester elastomers (TPE-E), thermoplastic polyamide elastomers (TPE-A), polyethylene (PE), for example in the forms of low-density polyethylene (LDPE) or linear low-density polyethylene (LLDPE), or the like. Materials for injection-molded bristles advantageously have a Shore D hardness of at least 0 and particularly advantageously of at least 30 and / or at most 100 and advantageously at most 80.In particular, a higher Shore hardness for injection-molded bristles is advantageous than for other soft components used, such as handles, massage elements, additional cleaning elements, or the like. The materials used for manufacturing injection-molded bristles can be sustainable materials.

[0043] In principle, the use of water-soluble polymers is also conceivable, for example for hard components, soft components, injected bristles or other elements of the hygiene product.

[0044] Similarly, bioplastics can be used for the hard component, the soft component, and / or the material for injection-molded bristles. These bioplastics may be derived from renewable raw materials, be biodegradable, particularly compostable, and / or consist of recycled and / or recyclable material. Preferably, the material is made of a plastic. Preferably, the biodegradable, particularly compostable, and / or recycled and / or recyclable material is made of a bioplastic, particularly a plastic based on renewable raw materials and / or a biodegradable plastic.The material can therefore be fossil-based and biodegradable, such as PVOH, PCL, PBAT, PET, or PBS; based on renewable resources and biodegradable, such as PLA, PHA, cellophane, or starch blends; or based on renewable resources but not biodegradable, such as Ca, bio-PE, bio-PP, bio-PA, or bio-PET. Various bioplastics that would appear suitable to an expert are conceivable, such as starch-based bioplastics, cellulose-based bioplastics, polyhydroxyalkanoates, such as polyhydroxybutyric acid (PHB), polylactic acid (PLA), aliphatic and / or aromatic copolyesters, or other bioplastics such as lignin-based bioplastics. The hard component and / or the soft component and / or the material for injection-molded bristles consists in particular of a bioplastic, which may be derived from renewable resources.Potential raw materials include corn, hemp, sugar, castor oil, palm oil, potatoes, wheat, sugar cane, rubber, wood, the castor bean plant (also known as the castor oil plant), and similar materials. Suitable base materials could include cellulose, starch, PLA, glucose, chitin, chitosan, and the like, from which specific bioplastics could be synthesized.

[0045] In this context, a "volume body" is understood to mean, in particular, a body that partially forms the hygiene agent and is preferably made of a solid material. Preferably, the volume body forms a voluminous structure of the hygiene agent. Preferably, the volume body consists largely, and in particular entirely, of a foamed material. In this context, a "base body" is understood to mean, in particular, a body that partially forms the hygiene agent and is preferably made of a solid material. Preferably, the base body forms a support structure or the backbone of the hygiene agent. Preferably, the volume body consists largely, and in particular entirely, of a rigid component.The phrase "the at least one solid body is integrally formed with the at least one base body" is to be understood in particular as meaning that at least part of the shaping of the solid body takes place directly on the base body. Specifically, the solid body is produced directly on, and especially around, the base body, particularly during production. Alternatively or additionally, the solid body can subsequently be deformed, particularly compressed, on the base body to form a positive fit. Preferably, the solid body forms a positive and / or material bond with the base body directly during production. In particular, the solid body is inseparably and non-destructively connected to the base body.

[0046] Furthermore, it is proposed that the at least one solid body at least partially encloses the at least one base body. Preferably, the at least one solid body encloses the at least one base body at least partially in a region of the grip unit. In this context, "at least partially encloses" means, in particular, that the base body is surrounded by the solid body in at least one plane, starting from a geometric center point of the base body in that plane, within an angular range of at least 180°, preferably at least 270°, and particularly preferably at least approximately 360°. Preferably, the solid body completely encloses the base body in at least one plane. This allows for a particularly high level of ergonomics for the hygiene product. Specifically, it enables the solid body to be gripped.Furthermore, this allows for a particularly advantageous shape of the bulk body and thus of the hygiene product. Additionally, this enables a low weight of the hygiene product, especially without compromising its ergonomics, particularly its ease of handling. Moreover, this results in a good connection between the bulk body and the base, which benefits the longevity of the hygiene product.

[0047] Several arrangements of the foamed bulk material are conceivable that would appear sensible to an expert. The bulk material can be positioned in individual sections or a combination of sections, such as the handle, neck, and / or head area, within the entire hygiene product. For example, it could be located in the handle and neck area, the neck and head area, or the handle and head area. Alternatively, the bulk material can be positioned in all sections—the handle, neck, and head area—of the hygiene product. This results, in particular, in a completely foamed product.

[0048] The surface of a foamed solid body is particularly dependent on the manufacturing process. Furthermore, the surface can be modified by the process. Longer and / or hotter vapor deposition results in smoother and / or more homogeneous surfaces, and the tool surfaces are removed more effectively. In particular, a flat surface without special structures is formed. A tool structure that is too fine, especially due to eroded surfaces, may not be effective for coarse grains due to the grain size of the foam. Etched or polished surfaces are also conceivable on the tool. Alternatively, a combined surface can be created on the tool, such as eroded and etched surfaces. For example, polished edges and rough surfaces can be incorporated. Additionally, structures can be incorporated on the surface of the solid body.In particular, shapes or structures protruding from the surface by 0.1 mm to 2 mm, preferably by 0.5 mm to 1.5 mm, and / or shapes recessed from the surface by 0.1 mm to 2 mm, preferably by 0.5 mm to 1.5 mm, are conceivable. The structures or shapes have a generally closed contour. Various cross-sectional shapes that would appear useful to a person skilled in the art are conceivable, such as circular, oval, circular segment, n-sided, square, rectangular, rhombic, and / or parallelogram-shaped. Furthermore, patterns can be created on the surface of the solid body using shapes. A single arrangement or a repetitive arrangement of the patterns is particularly conceivable. A partial arrangement of structures on the solid body is also particularly conceivable. The structure can be provided at one location or at several locations.Furthermore, the structure can be applied to one side, two sides, or around the entire body. A surface finish on the injection-molded parts, particularly the base body, is possible, especially according to current standards.

[0049] The hygiene product features a particularly voluminous handle. Preferably, the handle unit consists at least partially of the foamed body. This allows for the same or lower weight for the same size. Furthermore, there is less risk of sink marks compared to injection-molded parts. The foamed body has a volume of 10 cm³ to 70 cm³, preferably 15 cm³ to 50 cm³. Preferably, the foamed body comprises 60% to 90%, preferably 70% to 85%, of the total volume. The foamed body results in a significant weight reduction. Preferably, a purely foamed toothbrush handle can be 70% to 95% lighter, preferably 80% to 90% lighter, compared to a purely injection-molded toothbrush with the same volume.In a combined toothbrush handle, a weight reduction of 50% to 75%, preferably 50% to 65%, can be achieved compared to a purely injection-molded toothbrush of the same volume. The hygiene component preferably weighs 3.5 g to 12 g, preferably 6 g to 10 g. The proportion of the foamed portion to the total weight is preferably 5% to 50%, preferably 15% to 25%. The maximum circumference (around the longitudinal axis) of the handle unit in a purely foamed handle is preferably 5 cm to 12 cm, preferably 7 cm to 10 cm. The center of gravity of the hygiene component, measured from the rear end, is preferably located between 100 mm and 170 mm, preferably 120 mm to 150 mm. The concentration of the hygiene agent, measured from the rear end, is in percentage terms, particularly at a value of 50% to 80%, preferably 60% to 75%, of the total length.The base material thickness is particularly from 3 mm to 10 mm, preferably from 3.5 mm to 7 mm, to ensure sufficient stability when combined with the foamed component. The layer thickness of the foamed solid is particularly from 3 mm to 300 mm, preferably from 3 mm to 20 mm. The minimum layer thickness of the foamed solid depends in particular on the granules used. Large wall thicknesses, on the other hand, are not critical.

[0050] The injection-molded base body can have various cross-sectional shapes that a person skilled in the art would consider useful, such as H-shaped, rectangular, U-shaped, cross-shaped, and / or star-shaped, each with angular or rounded edges. The cross-section is preferably formed in the longitudinal direction. Preferably, the base body has symmetrical shapes with respect to the longitudinal axis. The shape of the base body can be combined with contours for positive locking, in particular positive locking elements, such as a protruding disc, extension, recess, opening, or the like. Furthermore, process-specific elements can be used for functional purposes on the product. For example, it is conceivable that retaining structures are formed by steam outlets, for example at the sprue, or by steam discharge. Steam outlets can, for example, form surface structures.The surface textures can, for example, be specifically arranged to serve as a thumb grip. In particular, it would be conceivable to modify steam outlet valves so that the shapes can also provide the necessary functionality.

[0051] Preferably, the base body is shaped in such a way that the foamed volume can be separated from it, for example for disposal. Separation can be achieved, for example, by cutting or tearing / peeling.

[0052] Furthermore, it is proposed that the at least one base body has at least one positive locking element which forms a positive locking connection with the at least one solid body. In this context, a "positive locking element" is understood to be, in particular, an element of the base body which is designed to project into the solid body or to form a recess for penetration by the solid body. Preferably, the positive locking element forms a projection and / or a recess which extends perpendicular to a principal direction of extension of the hygiene agent and is designed to provide a positive locking fixation of the solid body parallel to a principal direction of extension of the hygiene agent. "Positive locking" is understood to mean, in particular, that adjacent surfaces of positively locked components exert a holding force on each other acting in the normal direction of the surfaces.In particular, the components are geometrically engaged with one another. The positive locking element can be designed as a projection, such as a pin, a bridge, and / or a disc, as a taper, and / or as an opening. This allows for a particularly advantageous and stable connection between the base body and the solid body. In particular, a material bond can be omitted. This facilitates separate disposal. Furthermore, this allows for the provision of a particularly advantageous and stable hygiene product. Specifically, this prevents play from occurring between the base body and the solid body due to the forces generated during the intended use of the hygiene product (e.g., during tooth brushing and the resulting pressure on the brush head), or at least minimizes this play compared to when no positive locking elements are used.Positive locking elements are of course particularly useful when no material connection and / or bonding is provided between the base body and the solid body.

[0053] It is further proposed that the handle unit comprises at least one cage element which at least partially encloses the at least one solid body. Preferably, the at least one solid body forms at least a partial positive fit with the cage element. In particular, the solid body is manufactured within the cage element. Most preferably, the cage element cuts at least partially into the solid body. The cage element can also be completely contained within the solid body as an anchoring structure and not protrude from it. In this case, at least the application unit, which is integrally formed with the cage element, protrudes from the solid body. In this context, a "cage element" is understood to mean, in particular, an element that at least partially encloses the solid body.Preferably, the cage element extends over a substantial part of a principal extent and / or transverse extent of the solid body, wherein the cage element covers less than 50%, preferably less than 30%, and most preferably less than 15% of an outer surface of the solid body. Preferably, the cage element forms a lattice structure that extends at least partially around the solid body. In this context, "transverse extent" is understood to mean, in particular, an extent of a component that extends parallel to a width of the hygiene agent and perpendicular to the principal extent direction of the hygiene agent. Furthermore, "principal extent" is understood to mean, in particular, an extent of a component along the principal extent direction.Furthermore, in this context, "substantial part" shall be understood to mean at least 30%, preferably at least 50%, and particularly preferably at least 70% of a whole. This allows, in particular, a suitably stable arrangement of the solid body to be achieved. Furthermore, the solid body can be advantageously protected. In particular, dimensional stability of the solid body can be ensured. Furthermore, this allows, in particular, the provision of a suitably stable hygiene agent.

[0054] It is further proposed that the at least one cage element be directly and rigidly connected to the at least one base body. Preferably, the cage element is made of the same material as the base body. Preferably, the cage element is formed integrally with the base body. The base body and the cage element are, in particular, manufactured as a single casting. "Integral" is understood to mean, in particular, at least a material bond, for example, by a welding process, an adhesive bonding process, an injection molding process, and / or another process that would be considered appropriate by a person skilled in the art, and / or advantageously formed in one piece, such as by manufacturing from a single casting and / or by manufacturing using a single- or multi-component injection molding process, and advantageously from a single blank.This allows for a particularly advantageous and stable connection between the base body and the solid body. Furthermore, it enables a reduced number of components. Finally, it allows for the provision of a particularly advantageous and stable hygiene agent.

[0055] Furthermore, it is proposed that the hygiene product has at least one encapsulating body that at least partially surrounds the at least one solid body and is connected to the solid body by a force-fit and / or material bond. Preferably, the encapsulating body is materially bonded to the solid body. Preferably, the encapsulating body forms a material bond with the solid body and / or the base body during manufacturing. In this context, an "encapsulating body" is understood to be, in particular, a body that partially forms the hygiene product and is made of a solid material. Preferably, the encapsulating body forms at least a partial outer shell of the hygiene product. More preferably, the encapsulating body at least partially surrounds the solid body and / or the base body. In particular, the encapsulating body forms at least a partial outer surface of the hygiene product.Preferably, the outer body consists largely, and in particular entirely, of a soft material. "Force-fit connection" is understood to mean, in particular, a detachable connection, whereby a holding force between two components is preferably transmitted by a frictional force between the components. "Material bond connection" is understood to mean, in particular, that the mass components are held together by atomic or molecular forces, such as in soldering, welding, bonding, and / or vulcanizing. This allows, in particular, an advantageous outer surface of the hygiene product to be provided. Furthermore, despite the bulk of the body, an advantageously uniform surface of the hygiene product can be created.

[0056] Furthermore, it is proposed that the at least one encapsulating body consist at least partially of a soft component. Preferably, the encapsulating body consists entirely of a soft component. This allows, in particular, an advantageous outer surface of the hygiene product to be provided. Furthermore, despite the bulky body, an advantageously uniform surface of the hygiene product can be created. In particular, advantageous slip resistance of the hygiene product can be achieved. This allows for advantageous grip and a high level of ergonomics.

[0057] Furthermore, it is proposed that at least one of the base bodies consist at least partially of a hard component. Preferably, the base body consists entirely of a hard component. This allows for a particularly advantageously high stability of the hygiene product. High ergonomics and stability can be achieved.

[0058] It is further proposed that the hygiene agent has at least one enveloping body that at least partially penetrates the at least one solid body and is connected to the at least one solid body and / or base body by a force-fit and / or material bond. The enveloping body cannot form a material bond with the solid body, but it can with the base body. Preferably, the solid body has at least one recess and / or at least one gap in which the enveloping body is arranged. Particularly preferably, the enveloping body can extend through the solid body to the base body. In this context, a "penetrating enveloping body" is understood to mean, in particular, an enveloping body that is bounded by the solid body in at least one plane in at least two opposite directions.Preferably, the outer shell is inserted directly into a recess and / or gap in the solid body during manufacturing, and is thus directly bounded by the solid body after manufacturing. This allows for the creation of particularly advantageous, tactilely pleasing grip surfaces on the hygiene product. Furthermore, it allows for the provision of various surface finishes, strengths, and / or Shore hardnesses for the hygiene product. This results in a particularly advantageously high level of ergonomics.

[0059] It is further proposed that the application unit be formed at least partially from the solid body, which is compacted at least section by section, particularly after the fact, in a specific area of ​​the application unit. Preferably, a foamed material of the solid body is compacted at least section by section after the solid body has been manufactured. During compaction, the density of the solid body is increased, at least section by section. In particular, a gas stored in the foamed material, for example in the form of air, is displaced or released during compaction. This allows for a particularly advantageously high strength of the application unit. In addition, compacted zones can have different physical and mechanical properties than other zones of the solid body. This allows, for example, the reliable fixation of cleaning agents, such as bristles.

[0060] Furthermore, it is proposed that the handle unit is at least partially formed by the solid body, which is compacted at least section by section, particularly after the fact, in a specific area of ​​the handle unit. Preferably, a foamed material of the solid body is compacted at least section by section in a specific area of ​​the handle unit after the solid body has been manufactured. This allows for a particularly advantageously high strength of the handle unit. In particular, subsequent contouring of the handle unit can be achieved. Complex shapes can be produced that are not feasible, for example, when manufacturing the foamed material.

[0061] Furthermore, it is proposed that the hygiene agent comprises at least one bristle plate which is inserted into a recess of the application unit. The bristle plate is, in particular, fitted with bristles and / or alternative cleaning elements (e.g., injection-molded bristles and / or massage and cleaning elements made of soft material). For this purpose, bristle plates with through holes or blind holes are first manufactured, particularly by injection molding, through or into which bristles and / or alternative cleaning elements are subsequently inserted. Preferably, the bristles are then bonded to the plate using the described methods such as AFT, PTT, or anchor punching. Preferably, the application unit is compacted in one region of the recess. More preferably, the application unit consists of the foamed material in one region of the recess.This allows for a particularly advantageous, simple, and reliable attachment of the bristle plate to cleaning elements, especially in the form of conventional, extruded, and / or injection-molded bristles, or cleaning or massage elements made of soft material. In particular, a suitably stable hygiene product can be provided.

[0062] Furthermore, it is proposed that the hygiene product comprises a bristle bundle which is connected to the application unit by means of a punching process. The bristle bundles are preferably processed by at least one anchor punching process or the like, and in particular attached to the application unit. Preferably, a bristle carrier of the application unit has a plurality of bristle receptacles, in particular holes for bristle bundles, which are in particular drilled and / or formed by a casting process and / or a particle foaming process. In the case of anchor punching, it is conceivable, for example, that a base body, preferably of the brush head, is first manufactured by means of a casting process and / or a particle foaming process, wherein blind holes for bristle bundles are advantageously formed during the casting process and / or the particle foaming process. Of course, subsequent drilling of blind holes is also conceivable.

[0063] Preferably, bristles or bristle bundles are then folded and fastened in a blind hole by means of at least one anchor, particularly by punching. Loop punching is also conceivable. This allows for a particularly advantageous, simple, and reliable fastening of bristle bundles. In particular, a suitably stable and reliable hygiene product can be provided.

[0064] Furthermore, the invention relates to a method for manufacturing the hygiene agent. It is particularly proposed that, in at least one process step, the bulk body is directly molded onto the base body using a foaming process, especially a particle foaming process. Preferably, at least part of the shaping of the bulk body takes place directly on the base body. Preferably, during the shaping of the bulk body, the base body defines, in particular, a forming cavity of a molding tool for the bulk body. It is especially preferred that the bulk body is manufactured, at least partially, around the base body. In particular, the bulk body is manufactured directly on, and especially around, the base body, particularly during production. Preferably, the bulk body forms a form-fit and / or material bond with the base body directly during production.

[0065] The particle foaming process, also known as particle foaming or polystyrene foaming, is a physical foaming process in which the material is foamed through a physical process. This process primarily uses expandable plastics, such as polystyrene (PS) in the form of expanded polystyrene (EPS) or polypropylene (PP) in the form of expanded polypropylene (EPP). In the first step of the particle foaming process, the raw material, typically in the form of beads and / or spheres, is placed into a mold, filling the cavity. Subsequently, steam is injected under pressure and at high temperature through various small openings in the mold or cavity. This heat input causes the beads to expand and sinter, bonding together at their surfaces. Following this, the water content must be reduced, for example, in a tempering oven.In detail, the particle foaming process begins with the preparation of the granules in a pressure loading container and / or pressure filling device. In a second process step, or concurrently, a foaming mold is closed. This mold, in the form of a cavity, defines the shape of the volume. Subsequently, in a third process step, the foaming mold is filled from the pressure loading container and / or pressure filling device. The pressure during material introduction is preferably from 0.5 bar to 3 bar, and more preferably from 1 bar to 2 bar. In a further process step, the foaming mold is optionally vented, particularly by means of a vacuum. Finally, in a further process step, the contents of the foaming mold are vaporized. The vapor pressure is preferably up to 40 bar, more preferably up to 25 bar, and most preferably below 5 bar.The vapor pressure and vapor temperature are particularly related, as higher temperatures result in higher pressures. The vapor temperature is preferably up to 250°C, more preferably up to 170°C, and most preferably up to 150°C. The vapor temperature is also preferably at least 80°C. The duration of the vaporization process is preferably from 20 s to 50 s, more preferably from 25 s to 40 s. During this process, the granules or beads are welded together. The material expansion is preferably 20 to 100 times, more preferably 40 to 80 times, of its original volume. Optionally, this can be supported, particularly with a vacuum, to improve vapor penetration. Modern foams can also be produced without steam. This is based, in particular, on RF technology, in which foaming is achieved using energy in the form of electromagnetic waves.The welding process occurs primarily from the inside of the foamed volume to the outside, resulting in improved product quality. Furthermore, this RF technology is more energy-efficient and less process-intensive. Subsequently, the foamed mold is cooled to stabilize and / or fix the granules. Cooling is achieved primarily through a water-filled cavity system (sprayed water) via the same channels used for steam injection. The foamed mold is then opened in a further process step. The cycle times for the foaming process are typically from 60 to 200 seconds, preferably from 80 to 120 seconds. Depending on the granule size, the particle foaming process requires a minimum wall thickness for the volume, typically 3 mm.Furthermore, it is particularly conceivable that the solid body is temporarily stored after production so that, for example, residual blowing agent, especially pentane, can escape. It is also conceivable that the material is pre-foamed.

[0066] In particular, the raw material can be produced separately in the form of beads and / or spheres. Specifically, the expandable plastic is produced by suspension (bead) polymerization with the addition of blowing agents, such as hydrocarbons and / or pentane. The granule size can be between 0.2 mm and 0.3 mm. The expandable plastic is pre-expanded with steam, particularly at temperatures of 80°C to 110°C, up to 80 times its original volume. This is achieved using either discontinuous or continuous pre-expanders. The steam diffusing into the cell walls supports the foaming process. This allows for the production of a hygiene product with particularly advantageous ergonomic properties.In particular, this can achieve advantageous gripping and a pleasant feel, as well as improved slip resistance of the handle. Furthermore, this allows the weight of the hygiene product to be kept low, especially without compromising its ergonomics, particularly its grip. Material usage for the hygiene product can also be minimized. This results in a particularly environmentally friendly hygiene product.

[0067] Preferably, the forming tool for the solid body is formed by a foaming mold. The foaming mold has, in particular, at least one injection point or inlet. The injection point is preferably located centrally on the axis of symmetry for a symmetrical solid body. In particular, the injection point is arranged between the vapor inlets and outlets. The injection point is preferably concealed or positioned so that it does not interfere with the design, for example, centrally on the longitudinal axis at a rear end. Furthermore, structures can be incorporated into the foaming mold. For example, different surfaces can be incorporated into the same mold, as well as eroded surfaces and / or structured surfaces. It is also conceivable that the foaming mold is partially temperature-controlled. In particular, different heating zones and / or different cooling zones can be incorporated.The surface temperatures in the mold preferably correspond to the vapor temperature. During subsequent cooling, the foaming mold is also cooled. Furthermore, the arrangement of the vapor inlet and outlet points in the foaming mold must be carefully considered. This arrangement plays a crucial role in the surface quality and component properties of the solid body. Defects that may arise include air inclusions or improper sintering. Vapor inlet and outlet points are particularly noticeable on the final product, especially in the form of valve-like inserts. The vapor inlet and outlet points are preferably not visible from the outside of the finished solid body; therefore, the outlet points are preferably located in non-functional areas. Preferably, the outlet points are located on the underside of the solid body.Furthermore, the softness of the material used in the solid body allows for relatively large undercuts compared to the injection molding process. The foam mold is preferably made of metal.

[0068] Alternatively or additionally, other foaming processes that a specialist might consider sensible are also conceivable. Alternative foaming processes include, for example, chemical foaming. In chemical foaming, a blowing agent in the form of powder or granules is added to the plastic. This chemical additive decomposes, releasing a gas, usually carbon dioxide, during the plasticization of the plastic as the temperature increases. Here, too, the gas dissolves in the melt while maintaining a minimum pressure. The subsequent process is the same as for physical foaming. The advantage of this process is that no special equipment is required. Other alternative foaming processes include, for example, mechanical foaming.

[0069] Furthermore, it is proposed that in at least one process step, the at least one outer body and / or the at least one base body is molded onto the solid body by means of an injection molding process. Preferably, the at least one outer body and / or the at least one base body and the solid body are produced in a particle foam composite injection molding process. Particle foam composite injection molding is a technology in which a foamed molded part is permanently bonded to plastic by injection molding. Preferably, in a first step, the solid body is produced, for example, from expanded polypropylene (EPP). Preferably, the solid body is then placed into a cavity of an injection mold. Subsequently, the injection mold is closed, and a plastic component of the outer body and / or the base body is injection molded onto the solid body.Since injection molding involves a higher melting temperature, or the melt has a higher temperature than the foamed solid body, a controlled melting of the foamed solid body results in a strong, bonded mechanical connection. Preferably, the at least one outer body and / or the at least one base body are bonded to the solid body. Form-fit connections can also be created. Optionally, the foamed solid body can be overmolded with a soft component. This allows the positive properties of particle foams to be combined with those of thermoplastics, resulting in a functional lightweight component. Various process options and / or combinations are conceivable. For example, overmolding an existing part is possible.In particular, a foamed part can be over-foamed. This allows for the combination of different foam components, such as hard and soft foam components and / or foam components with different bases (e.g., EPS with EPP). The two foam components can form various bonds, such as a material bond or, preferably, a force-fit and / or form-fit. Alternatively, it is also conceivable to over-foam an injection-molded part. In this case, an injection-molded part is created and then over-foamed. The bonding possibilities between different parts depend primarily on the material combination. In particular, chemical (material bond) and / or mechanical (force-fit / form-fit) bonds between the parts can be achieved.This allows for a particularly advantageous, and especially hygienic, outer surface of the hygiene product. Furthermore, despite its bulk, a suitably uniform surface can be created. This also results in advantageous slip resistance, providing a good grip and ensuring a high level of ergonomics.

[0070] In particular, various process variants and manufacturing sequences that would appear sensible to a specialist are conceivable.

[0071] In one variant, for example, the solid body can be produced by foaming. The foamed solid body can then be placed in an injection mold and overmolded with a hard component, in particular the base body. Subsequently, the hard component, in particular the base body, can optionally be overmolded with a soft component, in particular the outer shell and / or a material component for injection-molded bristles, and / or the foamed component can be overmolded with soft components.

[0072] In a second variant, the solid body can be produced, for example, by foaming. The foamed solid body can then be placed in an injection mold, and a hard and / or soft component can be produced in a cavity. If the hard and soft components are processed, the corresponding volumes or zones of the hard and soft components are preferably separated, i.e., they do not come into contact. Optionally, and particularly in conjunction with the production of the hard and soft components, the foamed solid body can be overmolded with material components for injection-molded bristles.

[0073] In a third variant, the base body can be manufactured using injection molding. The base body can then be placed in a foaming mold, and the foamed material for the solid body can be applied to the base body. The base body preferably has at least one partial geometry which, through effective anchoring and / or connection structures, prevents tear-out and holds the parts together. An application example could be a toothbrush handle, in particular a base body (e.g., an injection-molded stem) with a foamed solid body attached to it, and / or an injection-molded cage structure with a foamed solid body either through or onto it.

[0074] In a fourth variant, the base body can be manufactured using injection molding. Alternatively, a base body made of a non-plastic material (e.g., a machined body, wood, metal, or glass, etc.) can be used. The base body can then optionally be overmolded or assembled with a soft component, in particular the outer shell. The soft component can be used, for example, to create a thumb grip and / or a tongue cleaner. The overmolded or assembled base body is then placed in a foaming mold, and the base body is encased in the foamed material to form the solid body.

[0075] In a fifth variant, the base body can be manufactured using injection molding. Alternatively, a base body made of a non-plastic material (e.g., a machined body, wood, metal, or glass, etc.) can be used. The base body can then optionally be overmolded or assembled with a soft component, particularly the outer shell. This soft component can be used, for example, to create a thumb grip and / or a tongue cleaner. The foamed body can then be manufactured separately and attached to the base body.

[0076] In a sixth variant, for example, the solid body can be produced using foams. The solid body can consist of one or more foam components. The foamed solid body is then optionally compacted, at least partially.

[0077] In a seventh variant, for example, the solid body can be produced from a hard component using foaming. Optionally, another body, particularly one made of a soft component, can then be foamed onto the solid body. The foamed solid body can then be placed in an injection mold and overmolded with a hard component, particularly the base body.

[0078] Several process variations are conceivable. For example, the process can involve the overmolding of small parts. This is particularly useful in foaming applications. Specifically, an insert can be overmolded. In this process, the insert is placed in a foaming mold and then encased in foam. Examples of suitable inserts include transparent windows, thumb grip elements, plastic plates with or without cleaning elements, film hinges, application units with razor blades, and / or functional parts with an interface or connection to another part. Alternatively, a pre-assembled part would also be conceivable. For this, appropriate interface geometries would need to be created to allow for assembly.

[0079] Another process variant is back-foaming. In this process, films and / or fabrics can be back-foamed, particularly to achieve a smooth surface, especially when using a film, or a woven or textured surface, especially when using a fabric. With back-foaming, only one side is covered with foam, while the other side remains at least partially exposed. Additionally, it is conceivable that the film or fabric has a special surface that enables adhesion. For example, a polypropylene-backed film can be designed to bond with a polypropylene foam.

[0080] Preferably, the process parameters for injection molding after foaming, particularly onto the foamed solid body, differ from conventional injection molding parameters. In particular, the pressure conditions must be adapted to the component and the geometry of the solid body to be overmolded, so that damage to the solid body due to pressure is prevented. For a soft component, the temperature conditions are preferably 150°C to 250°C, and more preferably 180°C to 230°C. For a hard component, the temperature conditions are preferably 180°C to 290°C, and more preferably 210°C to 260°C. It is particularly advantageous to select a material and / or material parameters that flow well at low pressure and low temperatures. Preferably, the injection molding process covers the gate points, inlets, venting zones, and vapor inlet / outlet points from the previous manufacturing steps.For example, the injection points of an injection-molded part may be covered by the subsequently foamed part. In particular, both the foamed part and the injection-molded part may be covered. Due to the pressure conditions, the injection point and the injection direction must be selected so that the foamed part is not damaged. The injection direction should preferably not be directed towards the foamed material; if this is not possible, the distance between the two parts must be maximized to reduce the risk of damage. To achieve this, the injection point should preferably be determined based on the geometry of the solid part and also verified in relation to its arrangement in the final product.

[0081] There are various possible ways to bond the foamed parts, especially the solid body, with the injection-molded parts, particularly the base body and / or the shell. For example, a material bond and / or a bond between materials is conceivable. The prerequisite for a material bond and / or a bond between materials is, in particular, compatible components, especially materials with the same base. Possible combinations of the foamed part and the injection-molded part include, for example, EPE and PE, EPP and PP, EPS and PS, EPS and SAN, EPS and ABS, and EPET and PET. A material bond and / or a bond between materials is particularly possible if the downstream component has a higher melting point than the upstream component. This is especially the case with subsequent overmolding.For optimal pressure distribution and preservation of the foamed part, it is best if it rests against one wall and is injection-molded on the other side. This allows pressure to be applied from the inside out, resulting in better pressure absorption. In the case of a material bond, the downstream component melts the upstream component at the interface, and the components mix and bond. This creates a material bond. Alternatively or additionally to a material bond, a connection can also be achieved by means of a force-fit and / or form-fit. In the case of a force-fit and / or form-fit, an anchor structure consisting of a form-fit element in the rigid component is preferably provided, which enables a positive-locking connection.A force-fit and / or form-fit connection can be achieved, for example, by foaming over a structure with protruding elements, particularly those with undercuts. The protruding elements can, for example, be formed from ring-shaped elements on the part to be foamed over, especially the base body. The ring-shaped elements form, in particular, a longitudinal retaining element. Preferably, the ring-shaped elements can extend 360° around the longitudinal axis. The base body can thus be completely foamed over 360°, with the ring-shaped element providing longitudinal fixation. Further structures on the base body can provide rotational fixation. For this purpose, column-like protruding elements on the element to be foamed over, especially the base body, are particularly conceivable.For example, it is conceivable that a column of soft component, forming the thumb grip, is injection-molded onto the base body made of injection-molded hard component. The positive-locking connection is achieved by overmolding the base body with foam. Furthermore, it is also possible to implement multiple columns on the base body. Alternatively or additionally, a force-fit and / or positive-locking connection can also be achieved by overmolding interlocking elements with recesses, through-holes, undercuts, or by internal overmolding. With internal overmolding, interlocking elements with internal cavities can be overmolded from the inside. For example, a mesh can be injection-molded, with the foam being injected through the mesh into the cavity formed by the mesh. A cage can also be embedded in the foam.The cage can essentially rest on the foam and / or be only partially encased in foam. Filling voids in injection-molded products is also possible. Alternatively, the ring-shaped element can be positioned at an angle other than 90° to the longitudinal axis, which would automatically fix the rotation. The aforementioned form-fitting elements are designed to absorb the forces generated by the intended use of the hygiene product.

[0082] When combining injection molding and foaming, various manufacturing parameters must be considered. In particular, different equipment is required for foaming and injection molding. Furthermore, the foaming and injection molding processes can be explicitly separated. For example, in an offline solution (where process steps are explicitly separated), a part, especially the solid body, can be foamed, temporarily stored, and then overmolded with one or more components in an injection molding machine. In an inline solution (where process steps follow directly one after the other), a part, especially the solid body, can be foamed, transferred, and then overmolded with one or more components in an injection molding machine. This has the advantage that the material bond, or rather the...The material bond is better because the foamed part is still warm, and therefore the surface is more prone to bonding. The process steps discussed in this section for foaming and injection molding can be reversed in order. The same considerations apply.

[0083] It is further proposed that the at least one solid body be compacted, at least partially, after at least a first shaping process. Compaction occurs particularly after foaming. Therefore, in a first step, the solid body or several foam components are foamed, and subsequently, the solid body is compacted, at least partially. The aim of the compaction is, for example, to enable bristle formation, to create a stable structure, at least partially, to make the solid body stable as a whole, to introduce a film hinge into the solid body, or to achieve a surface structure. Compaction involves, in particular, deformation of the solid body under pressure and heat using a die corresponding to the compaction process, wherein a die surface preferably already incorporates part of a final geometry. Compaction is carried out, in particular, in two process steps.In the first step, the product, including its solid body, is placed into a negative mold. The product's shape against the mold remains unchanged. In the second step, a punch is applied to the product, pressing it into position. The surface in contact with the punch is shaped accordingly. The solid body is thus compressed. This compression can occur in several stages, as a portion of the shape always remains unchanged. This is particularly necessary to create a defined shape and / or ensure a defined orientation of the product within the mold. Simultaneously with the compression, further shaping of the solid body can occur. For example, bristle holes can be formed at the same time as the head compaction. This can be achieved, for instance, using a heated punch with a bristle hole punch.Before compaction, the solid is preheated to a defined temperature. Furthermore, the compaction process preferably takes place directly after the foaming process, so that the solid does not need to be heated separately but still contains heat. Preheating can be used to achieve more uniform compaction and to speed up the process. Maximum preheating is achieved, in particular, to the glass transition temperature of the foamed solid. The temperature of the die is, in particular, in the range of the melting temperature of the component to be compacted and / or between the glass transition temperature and the melting temperature of the component to be compacted. During compaction, the compacted portion of the solid is compressed to 30% to 80%, preferably 50% to 70%, of its original volume. The compression is held for a duration of, in particular, 1 to 20 seconds, preferably 1 to 10 seconds.Compression is maintained to prevent the foam from recovering. This allows for the creation of a particularly advantageously variable hygiene product. For example, a high degree of rigidity in the application unit can be achieved. This, in turn, ensures reliable fixation of cleaning agents, especially bristles. Alternatively or additionally, the handle unit can be contoured after production. Complex shapes can be created that would not be possible with the foamed material itself.

[0084] Compaction allows for the creation of firmer, denser, and / or more stable areas within the foamed body. For example, a film hinge can be created by compressing the foamed mass. During compaction, gas / air is forced out of at least some of the volume, resulting in a nearly solid mass. In a compacted area, a density approaching that of injection-molded parts can be achieved. Compaction can also create an interface geometry within the body, enabling connection to another part. Specifically, a portion of the interface can be compressed to create a harder, more defined, or calibrated structure. This interface could, for example, be designed for interchangeable heads or hairbrush heads.Compaction could be used, in particular, to join several foamed parts directly by welding and / or compression. Furthermore, compaction could be carried out directly within the foaming tool using a movable core and / or punch. Compaction also allows for greater variability. For example, a pre-product, such as a foamed or foamed and injected product, could be used and compacted in various ways to create different handle shapes. In this way, a basic handle could be created that could be compacted in different shapes, resulting in different product forms for various customers.

[0085] It is further proposed that the solid body be compacted, at least section by section, in a region of the application unit following a shaping process. The aim of the compaction is, in particular, to enable bristle formation. A bristle field can be directly created within the solid body through compaction. Specifically, the solid body can be compacted in a region of a brush head so that known bristle formation methods can be used. It would be particularly conceivable for compaction and bristle formation to occur simultaneously. Further shaping of the solid body can be carried out concurrently with the compaction. For example, bristle holes can be formed together with the head compaction. This can be achieved, for instance, using a heated punch with a bristle hole punch. In particular, a bristle field can be created within a compacted body.To enable bristle attachment, the brush head is compacted in a single process step. This compaction can be combined with the formation of bristle holes for standard anchor punching.

[0086] Alternatively, the compaction can be achieved by forming a recess for a bristle plate. The bristle plate can be injection molded, bristle-tipped, and then welded into the head area. The bristle plate can be bristle-tipped using the AFT, PTT, AMR, or in-mold processes described earlier.

[0087] However, simultaneous compaction and bristle attachment would also be conceivable. In this process, bristle bundles with a mushroom-shaped end could be produced in a first step, with the mushroom-shaped end acting like an anchor. The bristle bundles could then be inserted into recesses in the brush head. Subsequently, the brush head would be compacted, thus fixing the bristle bundles in place. This allows for the provision of a particularly advantageously variable hygiene product. For example, a high degree of rigidity in the application unit could be achieved. This, in turn, would ensure the reliable fixation of cleaning agents, especially bristles.

[0088] Alternatively or additionally, a bristle field can also be incorporated into a foamed body, particularly the foamed base body. For example, a bristle plate, such as an AFT / PTT / AMR / or in-mold plate, can be foamed over. In a first step, a bristle-covered plate is produced. The bristle-covered plate is then foamed over, and at least part of the application unit and / or handle unit is produced using the foamed component. Alternatively, individual bristle bundles could be foamed over. In a first step, bristle bundles with a mushroom-shaped end are produced, with the mushroom-shaped end acting as an anchor. The bristle bundles are then placed in a foaming tool and foamed over. The foaming process secures the bristle bundles.Alternatively or additionally, the use of twisted brushes is conceivable. For this, a wire end is held in a foamed handle. The anchoring is particularly important here, as the wire end must have a specific shape, for example, in the form of a fishhook (a "J" shape), to prevent the brush from being pulled out. During manufacturing, the twisted brush is placed in an injection mold or foaming tool and overmolded. The foaming can be done directly on the brush or wire end, or on an injection-molded part that has been molded onto the wire end. Alternatively or additionally, a bristle field can be arranged on the injection-molded body, especially the base body. The injection-molded base body, which also forms the head of the toothbrush, or a simply injection-molded body, forms the head area. A variant with a stamped bristle field is particularly conceivable in this case.The head of the application unit contains, in particular, bristle holes, allowing bristles to be attached directly within these holes. Anchor punching processes are particularly suitable for this purpose. Alternatively, a variant with an AFT bristle field using the AFT process is also conceivable. In this case, the head of the application unit includes, in particular, a recess for a bristle plate, specifically an AFT plate. The bristle plate is injection molded, fitted with bristles, and then welded into the head.

[0089] The hygiene product can be printed and / or decorated as desired. Printing or decoration can be achieved, for example, through surface treatment. This surface treatment can be integrated into the manufacturing process or performed afterward. The hygiene product can be sealed, for instance, by painting or flame treatment. Painting primarily fills any holes in the surface, which can result in uneven coating thickness. Painting can be done by spraying or brushing the hygiene product with paint, or by dip coating. Dip coating is particularly material-dependent and, due to the processing temperatures, is not suitable for all materials. Alternatively or additionally, the hygiene product can be embossed.Embossing is a type of partial densification that creates a surface texture and / or shape, or can be used to create lettering and / or a logo. Embossing can also involve a foil layer with a printing layer and a bonding layer, such as adhesive. In image embossing, a heated die is used to press a foil, for example from a roll, onto the object. The embossing occurs at the points where the foil is coated with adhesive. The die used for embossing is shaped to match the surface of the object. Printing is done in a defined manner, so the print marks must be aligned with the object being printed. In hot foil stamping, a heated die with the contour of the embossing is used to press a foil, for example from a roll, onto the object.The contact surfaces of the product are decorated with foil. The printed outline is therefore primarily created by the die. The die is typically made of metal. The die can be used for other functions as well. Furthermore, lettering can be hot-stamped. In particular, indentations can be created using heat, with the foil embossing forming at the bottom of the indentation. For this, the die is inserted deeper than the surface. Alternatively, negative molds can be formed. Embossing can be done without foil, with only partial compression. This allows for the creation of three-dimensional lettering, structures, or similar designs. Alternatively or additionally, the hygiene product can also be decorated using an insert in an undercut.For example, a diamond or something similar can be inserted.

[0090] During the manufacturing of the hygiene product, additional elements can be mounted to the base body, the solid body, and / or the outer casing. This includes the mounting of smaller elements. For example, additional elements such as metal parts, diamonds, glass beads, or the like can be subsequently mounted. Alternatively or additionally, injection-molded parts, such as hard or soft elements, or elements with other functions, can be added during assembly. The mounting of handle components is also conceivable as a special case. It is particularly conceivable that, for example, the foamed part has a hole through which a component to be mounted is inserted. Further end pieces are also conceivable in this context.The parts can be fixed in place, for example, mechanically, by means of undercuts, screws, clamping, snap-fit, and / or riveting, where in particular one part is riveted and / or snapped, and / or clamped. Screwing involves screwing the parts of the hygiene product together. For example, two injection-molded parts can be joined by the foamed body by sealing them with a nut-like, screwed-on part. Alternatively or additionally, fixing can be achieved by gluing or welding.

[0091] The hygiene agent according to the invention is not to be limited to the applications and embodiments described above. In particular, the hygiene agent according to the invention may, to fulfill a function described herein, comprise a different number of individual elements, components, and units than specified herein and / or any meaningful combination thereof. Furthermore, values ​​within the specified limits of the value ranges stated in this disclosure shall also be considered disclosed and freely applicable.

[0092] Naturally, the embodiments shown in this document are merely examples. Within the scope of the invention, the individual features and elements of these embodiments can be combined with other embodiments without departing from the scope of this invention. Drawings

[0093] Further advantages become apparent from the following description of the drawings. The drawings illustrate fourteen exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. It will be advantageous for those skilled in the art to also consider the features individually and combine them into meaningful further combinations.

[0094] They show: Fig. 1A a basic body of a hygiene device designed as a toothbrush with an application unit and a handle unit in a 3D view, Fig. 1B the basic body of the hygiene device with the application unit and the handle unit in a sectional view, Fig. 1C the hygiene device with the application unit, the handle unit, the basic body and the solid body in a 3D view, Fig. 1D the hygiene device with the application unit, the handle unit, the basic body and the solid body in a sectional view, Fig. 2A an alternative hygiene device designed as a toothbrush with an application unit, a handle unit, a basic body, a solid body and an outer body in a 3D view, Fig. 2B the alternative hygiene device with the application unit, the handle unit, the basic body, the solid body and the outer body in a sectional view, Fig.3A Another alternative hygiene device designed as a toothbrush with an application unit, with a handle unit, with a base body and with a solid body in a 3D view during manufacturing, Fig. 3B Another alternative hygiene device with the application unit, with the handle unit, with the base body, with the solid body and with a shell body in a 3D view, Fig. 3C Another alternative hygiene device with the application unit, with the handle unit, with the base body, with the solid body and with the shell body in a sectional view, Fig. 4A Another alternative hygiene device designed as a toothbrush with an application unit, with a handle unit which has a cage element, with a base body and with a solid body in a 3D view, Fig.4B Another alternative hygiene product with the application unit, with the handle unit which has the cage element, with the base body and with the solid body in a sectional view, Fig. 5A Another alternative hygiene product designed as a toothbrush with an application unit, with a handle unit which has a cage element, with a base body and with a solid body in a 3D view, Fig. 5B Another alternative hygiene product with the application unit, with the handle unit which has the cage element, with the base body and with the solid body in a sectional view, Fig. 6A Another alternative hygiene product designed as a toothbrush with an application unit, with a handle unit and with a solid body in a side view, uncompacted after foaming, Fig.6B the further alternative hygiene product with the application unit, with the handle unit and with the volume body in a side view, with compacted brush head, Fig. 6C the further alternative hygiene product with the application unit, with the handle unit and with the volume body in a side view, fully compacted, Fig. 7A a further alternative hygiene product designed as a toothbrush with an application unit which has a recess for an AFT plate, with a handle unit and with a volume body in a 3D view, uncompacted after foaming, Fig. 7B the further alternative hygiene product with the application unit, with the handle unit and with the volume body in a 3D view, fully compacted, Fig.7C a further alternative hygiene product with the application unit, with the handle unit, with the volume body and with an AFT plate received in the recess of the application unit in a 3D view, fully condensed, Fig. 8 a hygiene product designed as an interdental brush with an application unit, with a handle unit and with a volume body in a 3D view, Fig. 9 a hygiene product designed as an electric toothbrush with an application unit, with a handle unit which has a housing, with a base body forming the housing and with a volume body which is arranged on the housing in a 3D view, Fig.10 An alternative hygiene product designed as an electric toothbrush with an application unit, with a handle unit comprising a housing, with a base body forming the housing and with various partial volume bodies arranged on the housing, and a charging station in a 3D view, Fig. 11A. A hygiene product designed as a mascara with an application unit, with a handle unit, with a tank, with a base body and with a volume body in a side view, Fig. 11B. The hygiene product with the application unit, with the handle unit, with the base body and with the volume body shown in a side view without the tank, Fig. 11C. The hygiene product with the application unit, with the handle unit, with the tank, with the base body and with the volume body in a sectional view, Fig.12. A hygiene product designed as a razor with an application unit, a handle unit, a base body, and a solid body in a 3D view, Fig. 13A. A hygiene product designed as a dental floss box with an application unit, a handle unit designed as a box, and a solid body in a 3D view unfolded, Fig. 13B. The hygiene product with the application unit, the handle unit designed as a box, and a solid body in a 3D view folded with an open lid, Fig. 14. A hygiene product designed as a hand broom with an application unit, a handle unit, and a solid body forming the handle unit in a 3D view. Description of the exemplary implementations

[0095] The Figure 1AFigure 36a shows a schematic perspective view of the front of a hygiene product 10a. In this case, the hygiene product 10a is designed as a toothbrush. The hygiene product 10a could also be a disposable toothbrush or a toothbrush with replaceable heads. Furthermore, the hygiene product 10a could be a flosser, a single-tuft brush, an interdental cleaner, a tongue cleaner, or the like. Combined hygiene products are also conceivable, which combine at least two different functions, for example, a toothbrush with a tongue cleaner, a toothbrush with massage elements, an interdental cleaner with a flosser, or the like.

[0096] The hygiene product 10a has at least one application unit 12a. Furthermore, the hygiene product 10a has at least one handle unit 14a.

[0097] The following will refer to the Figures 1A to 1DReference is made to the figures, which show different views and production stages of hygiene product 10a. Due to the different views, some elements are not shown in all figures and therefore not labeled with reference symbols in all figures.

[0098] The hygiene agent 10a has a longitudinal axis 38a, a vertical axis 40a, and a horizontal axis. The longitudinal axis 38a is arranged parallel to a principal extension direction 42a of the hygiene agent 10a. If the hygiene agent 10a is placed with a rear side 44a on a flat surface such that the longitudinal axis 38a is parallel to the surface, the vertical axis 40a is arranged perpendicular to the longitudinal axis 38a and perpendicular to the surface and the horizontal axis. The horizontal axis is arranged perpendicular to the longitudinal axis 38a and perpendicular to the vertical axis 40a. In the present case, the hygiene agent 10a has a length, particularly parallel to the longitudinal axis 38a and measured parallel to the contact surface, of 140 mm to 210 mm and preferably of 165 mm to 195 mm.

[0099] The at least one application unit 12a has a head section 46a. The head section 46a forms a brush head of the hygiene product 10a. In the present case, the head section 46a is designed as a toothbrush head. The head section 46a has, in particular, a base body designed as a bristle carrier. The base body of the head section 46a is made entirely of a hard component. However, it would also be conceivable that the base body of the head section 46a is made of a hard component and a soft component. The base body of the head section 46a forms a bristle carrier. The hygiene product 10a also has a plurality of bristle holes in the head section 46a in the form of recesses 32a, each of which encompasses a bundle of bristles.

[0100] Alternatively, the hygiene product 10a could have a bristle plate embedded in the head region 46a, which comprises a plurality of bristle bundles. The bristle plate is exemplified by an AFT plate. A recess is formed on the front face 36a of the head region 46a. The recess is designed to receive the bristle plate.

[0101] Any suitable bristles can be used. Furthermore, in this case, the application unit 12a comprises a neck section 48a, which in particular connects the head section 46a with the handle unit 14a. The neck section 48a forms a neck.

[0102] The application unit 12a is arranged on the upper surface of the hygiene product 10a. The application unit 12a forms the uppermost point of the hygiene product 10a. The application unit 12a can, in principle, have at least one tongue cleaning element. The tongue cleaning element can, in particular, have nubs and / or lamellae. Preferably, the tongue cleaning element is arranged on the rear side of the head region 46a; in particular, it can be arranged on a ring made of a soft component and / or on a surface made of a soft component and / or on an island made of a hard component. The tongue cleaning element can be formed from a hard and / or soft component.

[0103] The neck section 48a forms a transition between the application unit 12a and the handle unit 14a. The lower end of the neck section 48a is at least partially spring-loaded.

[0104] The hygiene product 10a further comprises a bulk body 16a. The bulk body 16a consists at least partially of a foamed material. The bulk body 16a consists entirely of a foamed material. The foamed material is produced from expandable granules. The foamed material can be made from a rigid component, resulting in a rigid foam. The foamed material can consist, for example, of expanded polystyrene (EPS), expanded polyethylene (EPE), expanded polypropylene (EPP), expanded polyethylene terephthalate (EPET), and / or expanded polybutylene terephthalate (EPBT) as the base component. A foam based on cellulose or PLA is also possible.

[0105] The solid body 16a forms at least part of the application unit 12a and / or the handle unit 14a. The solid body 16a partially forms the handle unit 14a. The solid body 16a forms an outer shell of a handle area of ​​the handle unit 14a. The solid body 16a has, by way of example, a circular cylindrical shape, with a central axis extending along the longitudinal axis 38a of the hygiene product 10a. The solid body 16a is hollow cylindrical. However, other shapes that would appear sensible to a person skilled in the art are also conceivable.

[0106] Furthermore, the hygiene product 10a has a base body 18a connected to the bulk body 16a. The base body 18a consists at least partially of a hard component. The base body 18a consists entirely of a hard component. The base body 18a is formed in one piece. Examples of suitable hard components include styrene polymers such as styrene acrylonitrile (SAN), polystyrene (PS), acrylonitrile butadiene styrene (ABS), styrene methyl methacrylate (SMMA), styrene butadiene (SB), or the like. A hard component can also include polyolefins such as polypropylene (PP), polyethylene (PE), or the like, particularly in the form of high-density polyethylene (HDPE) or low-density polyethylene (LDPE).Furthermore, polyesters such as polyethylene terephthalate (PET), especially in the form of acid-modified polyethylene terephthalate (PETA), glycol-modified polyethylene terephthalate (PETG), polybutylene terephthalate (PBT), acid-modified polycyclohexylenedimethyl terephthalate (PCT-A), glycol-modified polycyclohexylenedimethyl terephthalate (PCT-G) or the like, are also suitable.

[0107] The base body 18a forms at least part of the application unit 12a and / or the handle unit 14a. The base body 18a forms the application unit 12a. The base body 18a forms the application unit 12a completely. However, it would also be conceivable that additional elements made of a soft component are provided on the application unit 12a. The base body 18a also partially forms the handle unit 14a. The base body 18a forms a core of the handle unit 14a. The base body 18a has an at least approximately cylindrical shape in one area of ​​the handle unit 14a. The base body 18a extends along the longitudinal axis 38a along the entire hygiene product 10a. The base body 18a has a rounded end at one rear end of the hygiene product 10a.

[0108] The solid body 16a is integrally formed with the base body 18a. The solid body 16a is produced directly on the base body 18a using a foaming process. The base body 18a is produced using an injection molding process, whereby the base body 18a is overmolded with the solid body 16a. The solid body 16a at least partially encloses the base body 18a. The solid body 16a encloses the base body 18a in a region of the handle unit 14a. The solid body 16a completely encloses the base body 18a in at least one plane perpendicular to the longitudinal axis 38a.

[0109] The base body 18a and the solid body 16a form a positive fit. The base body 18a has at least one positive-locking element 20a, 22a, 24a, which forms a positive fit with the solid body 16a. The base body 18a has several positive-locking elements 20a, 22a, 24a. A first positive-locking element 20a of the base body 18a is designed as a disk. The first positive-locking element 20a is formed by a ring that extends completely around a basic shape of the base body 18a. The first positive-locking element 20a is arranged in a plane perpendicular to the longitudinal axis 38a. The first positive-locking element 20a has a rectangular cross-section when viewed in a plane parallel to the longitudinal axis 38a. The base body 18a has, by way of example, two first positive-locking elements 20a, which are arranged at a distance from each other. A second positive locking element 22a of the base body 18a forms a circumferential groove.The groove of the second positive locking element 22a extends completely around the base body 18a in a plane perpendicular to the longitudinal axis 38a. The groove of the second positive locking element 22a is annular and, by way of example, has a rectangular cross-section. However, other shapes of the second positive locking element 22a that would appear sensible to a person skilled in the art are also conceivable. A third positive locking element 24a of the base body 18a forms an opening through the base body 18a. The opening of the third positive locking element 24a extends perpendicular to the longitudinal axis 38a through the base body 18a. The opening of the third positive locking element 24a has a circular cross-section. The opening of the third positive locking element 24a extends completely through a basic shape of the base body 18a. In principle, however, other configurations of the positive locking elements 20a, 22a, 24a that would appear sensible to a person skilled in the art would also be conceivable.The positive locking elements 20a, 22a, 24a each form a projection and / or a recess which extends perpendicular to the main extension direction 42a of the hygiene agent 10a and is designed to provide a positive locking fixation of the solid body 16a parallel to the main extension direction 42a of the hygiene agent 10a. In particular, the positive locking elements 20a, 22a, 24a and the solid body 16a are in geometric engagement with one another. The first positive locking elements 20a extend partially into the solid body 16a. Furthermore, the solid body 16a extends into the groove of the second positive locking element 22a and through the opening of the third positive locking element 24a. The second positive locking element 22a and the third positive locking element 24a are arranged along the longitudinal axis 38a between the first positive locking elements 20a.The base body 18a can thus be completely encased in foam on all 360° sides, with the first interlocking elements 20a and the second interlocking element 22a enabling longitudinal fixation. The third interlocking element 24a on the base body 18a secures the rotation of the volume body 16a on the base body 18a and simultaneously also provides longitudinal fixation.

[0110] The hygiene product 10a is manufactured using a process. In this process, the base body 18a is produced by injection molding. Subsequently, in a process step, the bulk body 16a is directly molded onto the base body 18a using a foaming process, specifically a particle foaming process. For this purpose, the base body 18a is placed in a foaming tool and the foamed material for the bulk body 16a is applied to it. The bulk body 16a is thus formed around the base body 18a. During production, the bulk body 16a forms a positive fit with the base body 18a. The particle foaming process primarily uses expandable plastic. In the first step of the particle foaming process, the raw material for the bulk body 16a, in the form of beads and / or spheres, is placed into a mold in which the base body 18a is already inserted.Steam is then injected under pressure and at high temperature through various small openings in the tool or cavity. This heat input causes the beads to expand and sinter, bonding at their surfaces. Subsequently, the water content is preferably reduced, for example, in a tempering oven. In detail, in the particle foaming process, the granules are provided in a pressure loading container and / or pressure filling device in a first process step. A foaming mold is then closed in a second process step. The foaming mold defines, in particular, the shape of the solid body 16a. The foaming mold is then filled in a third process step. The pressure during material injection is, in particular, from 0.5 bar to 3 bar, preferably from 1 bar to 2 bar.In a further process step, the foaming mold is optionally vented, particularly by means of a vacuum. Subsequently, the contents of the foaming mold are vaporized in a further process step. The vapor pressure is particularly up to 40 bar, preferably up to 25 bar, and particularly preferably below 5 bar. The vapor pressure and vapor temperature are particularly related, since higher temperatures result in higher pressures. The vapor temperature is particularly up to 250°C, preferably up to 170°C, and particularly preferably up to 150°C. The vapor temperature is also particularly at least 80°C. The duration of the vaporization is particularly from 20 s to 50 s, preferably from 25 s to 40 s. During this process, the granules or beads are welded together. The material expansion is particularly 20 to 100 times, preferably 40 to 80 times, of the original volume.Optionally, this process can be enhanced with a vacuum to improve steam penetration. The foam mold is then cooled to stabilize and / or fix the granules. Cooling is achieved primarily through a water-filled cavity system (sprayed water) via the same channels used for steam injection. The foam mold is then opened in a subsequent process step.

[0111] In the Figures 2A to 14 Further embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the embodiments, with regard to identical components, features and functions, reference is made to the description of the other embodiments, in particular the Figures 1A to 1D , can be referenced. To distinguish the embodiments, the letter a in the reference numerals of the embodiment of the Figures 1 to 1Dby the letters b to n in the reference numerals of the exemplary embodiments of the Figures 2A to 14 replaced. With regard to identically designated components, especially those with the same reference numerals, reference can generally also be made to the drawings and / or the description of the other embodiments, in particular the Figures 1A to 1D , will be referred.

[0112] The Figure 2A Figure 36b shows a schematic perspective view of the front side of a hygiene product 10b. In this case, the hygiene product 10b is designed as a toothbrush.

[0113] Hygiene product 10b has at least one application unit 12b. Furthermore, hygiene product 10b has at least one handle unit 14b.

[0114] The hygiene product 10b further comprises a solid body 16b. The solid body 16b consists at least partially of a foamed material. The solid body 16b consists entirely of a foamed material. The solid body 16b partially forms the handle unit 14b. The solid body 16b forms a handle body of a handle area of ​​the handle unit 14b. The solid body 16b has, by way of example, a circular cylindrical basic shape, with a central axis extending along a longitudinal axis 38b of the hygiene product 10b. The solid body 16b is hollow cylindrical. However, other shapes that would appear sensible to a person skilled in the art are also conceivable.

[0115] Furthermore, the hygiene product 10b has a base body 18b connected to the volume body 16b. The base body 18b consists at least partially of a hard component. The base body 18b consists entirely of a hard component. The base body 18b is formed in one piece. The base body 18b forms the application unit 12b. The base body 18b forms the application unit 12b completely. The base body 18b also partially forms the handle unit 14b. The base body 18b forms a core of the handle unit 14b. The base body 18b has an at least approximately cylindrical shape in one area of ​​the handle unit 14b. The base body 18b extends along the longitudinal axis 38b along the entire length of the hygiene product 10b. The base body 18b has a rounded end at one rear end of the hygiene product 10b.

[0116] The solid body 16b is integrally formed with the base body 18b. The solid body 16b is produced directly on the base body 18b using a foaming process. The base body 18b is produced using an injection molding process, whereby the base body 18b is overmolded with the solid body 16b. The solid body 16b at least partially encloses the base body 18b. The solid body 16b encloses the base body 18b in a region of the handle unit 14b. The solid body 16b completely encloses the base body 18b in at least one plane perpendicular to the longitudinal axis 38b.

[0117] The base body 18b and the solid body 16b form a positive fit. The base body 18b has at least one positive fit element 20b, 22b, 24b which forms a positive fit with the solid body 16b. The base body 18b has several positive fit elements 20b, 22b, 24b.

[0118] Furthermore, the hygiene product 10b has a shell body 28b that encloses at least one bulk body 16b. The shell body 28b is bonded to the bulk body 16b by a material bond. During manufacturing, the shell body 28b forms a form-fit and / or material bond with the bulk body 16b. The shell body 28b forms at least a partial outer shell of the hygiene product 10b. The shell body 28b completely encloses the bulk body 16b. Furthermore, the shell body 28b extends directly to the base body 18b. The shell body 28b is formed as a thin layer on the bulk body 16b. The shell body 28b consists at least partially of a soft component. Suitable soft components include, for example, thermoplastic styrene elastomers (TPE-S) such as a styrene-ethylene-butylene-styrene copolymer (SEBS), a styrene-butadiene-styrene copolymer (SBS) or the like.Furthermore, the use of thermoplastic polyurethane elastomers (TPE-U), thermoplastic polyamide elastomers (TPE-A), thermoplastic polyolefin elastomers (TPE-O), thermoplastic polyester elastomers (TPE-E) or the like is conceivable.

[0119] Furthermore, the hygiene product 10b has a thumb rest 50b. The thumb rest 50b is located in a thumb grip area of ​​the handle unit 14a. The thumb rest 50b consists of a soft component. The thumb rest 50b consists of the same component as the casing 28b. The thumb rest 50b is attached to the base body 18b. The thumb rest 50b is bonded to the base body 18b. The thumb rest 50b can also be positively connected to the base body 18b. Various shapes for the thumb rest 50b are conceivable that would appear sensible to a person skilled in the art.

[0120] The hygiene product 10b is manufactured using a process. In this process, the base body 18b is produced by injection molding. Subsequently, in a process step, the bulk body 16b is directly molded onto the base body 18b using a foaming process, specifically a particle foaming process. For this purpose, the base body 18b is placed in a foaming tool and the foamed material for the bulk body 16b is applied to the base body 18b. The bulk body 16b is thus produced around the base body 18b. During production, the bulk body 16b forms a positive fit with the base body 18b. Following this, in a process step, at least one outer body 28b is molded onto the bulk body 16b using an injection molding process. Furthermore, in this process step, the thumb rest 50b is molded onto the base body 18b using an injection molding process.For this purpose, the solid body 16b and the base body 18b are placed in a cavity of an injection mold. The injection mold is then closed, and a plastic component of the outer body 28b is injected onto the solid body 16b, and the thumb rest 50b is injected onto the base body 18b. Since injection molding has a higher melting temperature, or rather, the melt has a higher temperature than the melting temperature of the foamed solid body 16b, a controlled melting of the foamed solid body 16b results in a material-bonded, strong mechanical bond. The outer body 28b is materially bonded to the solid body 16b. Furthermore, the thumb rest 50b is materially bonded to the base body 18b.

[0121] From a process perspective, this can be according to Figures 2A and 2B created product based on the product made from Figures 1A to 1D build up. That in the Figures 1A to 1DThe created product is ready for use, but can be further developed into a product according to the additional process step. Figures 2A and 2B become.

[0122] The Figure 3A Figure 36c shows a schematic perspective view of the front side of a hygiene product 10c. In this case, the hygiene product 10c is designed as a toothbrush.

[0123] The hygiene product 10c has at least one application unit 12c. Furthermore, the hygiene product 10c has at least one handle unit 14c.

[0124] The hygiene product 10c further comprises a volumetric body 16c. The volumetric body 16c consists at least partially of a foamed material. The volumetric body 16c consists entirely of a foamed material. The volumetric body 16c partially forms the handle unit 14c. The volumetric body 16c forms a handle body of a handle area of ​​the handle unit 14c. The volumetric body 16c is designed in two parts and comprises two spaced-apart sub-bodies 52c, 52c'. The sub-bodies 52c, 52c' of the volumetric body 16c each have, by way of example, a circular cylindrical basic shape, with a central axis extending along a longitudinal axis 38c of the hygiene product 10c. The sub-bodies 52c, 52c' are arranged coaxially with each other. The sub-bodies 52c, 52c' of the volumetric body 16c are each hollow cylindrical. However, other forms that would appear sensible to an expert are also conceivable.

[0125] Furthermore, the hygiene product 10c has a base body 18c connected to the volume body 16c. The base body 18c consists at least partially of a hard component. The base body 18c consists entirely of a hard component. The base body 18c is formed in one piece. The base body 18c forms the application unit 12c. The base body 18c forms the application unit 12c completely. The base body 18c also partially forms the handle unit 14c. The base body 18c forms a core of the handle unit 14c. The base body 18c has an at least approximately cylindrical shape in one area of ​​the handle unit 14c. The base body 18c extends along the longitudinal axis 38c along the entire length of the hygiene product 10c. The base body 18c has a rounded end at one rear end of the hygiene product 10c.

[0126] The solid body 16c is integrally formed with the base body 18c. The solid body 16c is produced directly on the base body 18c using a foaming process. The base body 18c is produced using an injection molding process, whereby the base body 18c is overmolded with the solid body 16c. The solid body 16c at least partially encloses the base body 18c. The solid body 16c encloses the base body 18c in a region of the handle unit 14c. The solid body 16c completely encloses the base body 18c in at least one plane perpendicular to the longitudinal axis 38c.

[0127] The base body 18c and the solid body 16c form a positive fit. The base body 18c has at least one positive-fit element 20c, which forms a positive fit with the solid body 16c. The base body 18c has a first positive-fit element 20c, which is designed as a disk. The first positive-fit element 20c is formed by a circular ring that extends completely around a base shape of the base body 18c. The first positive-fit element 20c is arranged in a plane perpendicular to the longitudinal axis 38c. Viewed in a plane parallel to the longitudinal axis 38c, the first positive-fit element 20c has a rectangular cross-section. By way of example, the base body 18c has two first positive-fit elements 20c, which are spaced apart from each other. The basic body 18c has, by way of example, two first form-locking elements 20c, which are spaced apart from each other and are each arranged in a subbody 52c, 52c' of the solid body 16c.The sub-bodies 52c, 52c' can be made from various foamed materials.

[0128] Furthermore, the hygiene product 10c has a covering body 28c that partially penetrates at least one bulk body 16c. The covering body 28c is at least partially bonded to the bulk body 16c. During manufacturing, the covering body 28c forms a bond with the bulk body 16c. The covering body 28c partially forms an outer shell of the hygiene product 10c. The covering body 28c is located between the sub-bodies 52c and 52c' of the bulk body 16c. The covering body 28c connects the sub-bodies 52c and 52c'. Furthermore, the covering body 28c extends directly to the base body 18c. The covering body 28c consists of a soft component. The covering body 28c is at least partially bonded to the base body 18c.

[0129] The hygiene agent 10c is manufactured using a process. In this process, the base body 18c is produced by injection molding. Subsequently, in a process step, the bulk body 16c is directly molded onto the base body 18c using a foaming process, specifically a particle foaming process. For this purpose, the base body 18c is placed in a foaming tool, and the foamed material for the bulk body 16c is applied to the base body 18c. The bulk body 16c is thus formed around the base body 18c. During production, the bulk body 16c forms a positive connection with the base body 18c. Following this, in a process step, at least one outer body 28c is molded onto the bulk body 16c using an injection molding process. For this, the bulk body 16c and the base body 18c are placed into a cavity of an injection mold.Subsequently, the injection mold is closed and a plastic component of the outer shell 28c is injection-molded onto the solid body 16c and the base body 18c. The outer shell 28c is at least partially bonded to the solid body 16c. The outer shell 28c is at least partially bonded to the base body 18c.

[0130] The Figure 4A Figure 36d shows a front view of a hygiene product 10d in a schematic perspective view. In this case, the hygiene product 10d is designed as a toothbrush.

[0131] The hygiene product 10d has at least one application unit 12d. Furthermore, the hygiene product 10d has at least one handle unit 14d.

[0132] The hygiene product 10d further comprises a solid body 16d. The solid body 16d consists at least partially of a foamed material. The solid body 16d consists entirely of a foamed material. The solid body 16d partially forms the handle unit 14d. The solid body 16d forms a handle body of a handle area of ​​the handle unit 14d. The solid body 16d has, by way of example, a circular cylindrical basic shape, with a central axis extending along a longitudinal axis 38d of the hygiene product 10d. The solid body 16d is circular cylindrical in shape. However, other shapes that would appear sensible to a person skilled in the art are also conceivable.

[0133] Furthermore, the hygiene product 10d has a base body 18d connected to the volume body 16d. The base body 18d consists at least partially of a hard component. The base body 18d consists entirely of a hard component. The base body 18d is formed in one piece. The base body 18d forms the application unit 12d. The base body 18d forms the application unit 12d completely. The base body 18d also partially forms the handle unit 14d. The base body 18d has a recess 54d in a grip area of ​​the handle unit 14d. The recess 54d extends over the entire grip area of ​​the handle unit 14d. The recess 54d serves to receive the volume body 16d. The recess 54d divides the base body 18d into two partial base bodies 56d, 56d'. The base body 18d has an at least approximately cylindrical basic shape in one area of ​​the handle unit 14d.The basic body 18d has a rounded end at one rear end of the hygiene agent 10d.

[0134] The solid body 16d is integrally formed with the base body 18d. The solid body 16d is produced directly on the base body 18d using a foaming process. The solid body 16d is inserted into the recess 54d of the base body 18d. The base body 18d is produced using an injection molding process, whereby the recess 54d of the base body 18d is filled with the solid body 16d using foam.

[0135] The handle unit 14d further comprises a cage element 26d, which at least partially encloses the solid body 16d. The cage element 26d forms a lattice structure around the solid body 16d. The cage element 26d extends completely across the solid body 16d along the longitudinal axis 38d. The cage element 26d has three longitudinal webs 58d distributed circumferentially, which extend around the solid body 16d. Furthermore, the cage element 26d has a transverse web 60d, which circumferentially encloses the solid body 16d and connects the longitudinal webs 58d. The cage element 26d also extends over the recess 54d of the base body 18d. The cage element 26d connects the sub-base bodies 56d of the base body 18d to one another. The cage element 26d is directly and rigidly connected to the base body 18d. The cage element 26d is firmly connected to the base body 18d at both ends of the solid body 16d.The cage element 26d is formed integrally with the base body 18d. The cage element 26d forms at least a partial outer shell of the hygiene agent 10d.

[0136] The hygiene product 10d is manufactured using a process. In this process, the base body 18d with the cage element 26d is produced by injection molding. Subsequently, in a process step, the solid body 16d is directly molded onto the base body 18d using a foaming process, in particular a particle foaming process. The recess 54d of the base body 18d is filled with foam containing the solid body 16d. For this purpose, the base body 18d is placed in a foaming tool, and the recess 54d of the base body 18d is filled with the foamed material for the solid body 16d.

[0137] The Figure 5AFigure 36e shows a front side of a hygiene product 10e in a schematic perspective view. In this case, the hygiene product 10e is designed as a toothbrush.

[0138] The hygiene product 10e has at least one application unit 12e. Furthermore, the hygiene product 10e has at least one handle unit 14e.

[0139] The hygiene product 10e further comprises a solid body 16e. The solid body 16e consists at least partially of a foamed material. The solid body 16e consists entirely of a foamed material. The solid body 16e partially forms the handle unit 14e. The solid body 16e forms a handle body of a handle area of ​​the handle unit 14e. The solid body 16e has, by way of example, a circular cylindrical basic shape, with a central axis extending along a longitudinal axis 38e of the hygiene product 10e. The solid body 16e is hollow cylindrical. However, other shapes that would appear sensible to a person skilled in the art are also conceivable.

[0140] Furthermore, the hygiene product 10e has a base body 18e connected to the volume body 16e. The base body 18e consists at least partially of a hard component. The base body 18e consists entirely of a hard component. The base body 18e is formed in one piece. The base body 18e forms the application unit 12e. The base body 18e forms the application unit 12e completely. The base body 18e also partially forms the handle unit 14e. The base body 18e forms a core of the handle unit 14e. The base body 18e has an at least approximately cylindrical shape in one area of ​​the handle unit 14e. The base body 18e extends along the longitudinal axis 38e along the entire length of the hygiene product 10e. The base body 18e has a rounded end at one rear end of the hygiene product 10e.

[0141] The solid body 16e is integrally formed with the base body 18e. The solid body 16e is produced directly on the base body 18e using a foaming process. The base body 18e is produced using an injection molding process, whereby the base body 18e is overmolded with the solid body 16e. The solid body 16e at least partially encloses the base body 18e. The solid body 16e encloses the base body 18e in a region of the handle unit 14e. The solid body 16e completely encloses the base body 18e in at least one plane perpendicular to the longitudinal axis 38e.

[0142] The base body 18e and the solid body 16e form a positive fit. The base body 18e has at least one positive fit element 20e, 22e, 24e which forms a positive fit with the solid body 16e. The base body 18e has several positive fit elements 20e, 22e, 24e.

[0143] Furthermore, the hygiene product 10e has a shell body 28e that partially encloses at least one bulk body 16e. The shell body 28e is bonded to the bulk body 16e by a material bond. During manufacturing, the shell body 28e forms a material bond with the bulk body 16e. The shell body 28e forms at least a partial outer shell of the hygiene product 10e. The shell body 28e is formed by a ring that encloses the bulk body 16e transversely to the longitudinal axis 38e. The shell body 28e can form a form-fit connection in addition to the material bond, or it can form no material bond and only a form-fit connection.

[0144] The hygiene agent 10e is manufactured using a process. In this process, the base body 18e is produced by injection molding. Subsequently, in a process step, the bulk body 16e is directly molded onto the base body 18e using a foaming process, specifically a particle foaming process. For this purpose, the base body 18e is placed in a foaming tool, and the foamed material for the bulk body 16e is applied to the base body 18e. The bulk body 16e is thus formed around the base body 18e. During production, the bulk body 16e forms a positive connection with the base body 18e. Following this, in a process step, at least one outer body 28e is molded onto the bulk body 16e using an injection molding process. For this, the bulk body 16e and the base body 18e are placed into a cavity of an injection mold.Subsequently, the injection mold is closed and a plastic component of the outer shell 28e is injection-molded onto the solid body 16e. The outer shell 28e is thus bonded to the solid body 16e.

[0145] The Figures 6B and 6C Figure 10f shows a hygiene product in a schematic side view. In this case, the hygiene product 10f is designed as a toothbrush.

[0146] The hygiene product 10f has at least one application unit 12f. The application unit 12f has a head section 46f. The head section 46f forms a brush head of the hygiene product 10f. In this case, the head section 46f is designed as a toothbrush head. The head section 46f has, in particular, a base body designed as a bristle carrier. The base body of the head section 46f is formed entirely from a hard component. However, it would also be conceivable that the base body of the head section 46f is formed from a hard component and a soft component. The base body of the head section 46f forms a bristle carrier. At least one recess 32f is formed on a front surface 36f of the head section 46f. The recess 32f is designed to receive a bundle of bristles 34f. The head section 46f has a plurality of recesses 32f.The recesses 32f are formed by bristle holes created using a particle foam process. Any suitable bristles can be used for the bristle bundles 34f, which, as described above, can be punched, for example, using the anchor punching method. The hygiene agent 10f comprises the bristle bundles 34f. The bristle bundles 34f are connected to the application unit 12f by means of a punching process. The bristle bundles 34f are attached to the application unit 12f using an anchor punching method.

[0147] Furthermore, the hygiene product 10f has at least one handle unit 14f.

[0148] The hygiene product 10f further comprises a solid body 16f. The solid body 16f consists at least partially of a foamed material. The solid body 16f consists entirely of a foamed material. The solid body 16f forms the application unit 12f and the handle unit 14f. The application unit 12f is formed by the solid body 16f. The handle unit 14f is formed by the solid body 16f. The solid body 16f has, by way of example, a circular cylindrical shape, with a central axis extending along a longitudinal axis 38f of the hygiene product 10f. However, other shapes that would appear sensible to a person skilled in the art are also conceivable.

[0149] The solid body 16f is subsequently compacted, at least partially, in a region of the application unit 12f. The solid body 16f is completely subsequently compacted in a region of the application unit 12f. A foamed material of the solid body 16f is compacted after the solid body 16f has been manufactured. During compaction, the density of the solid body 16f is increased section by section. The solid body 16f is compressed, in particular, to a standard dimension of the application unit 12f. Furthermore, the solid body 16f is subsequently compacted, at least partially, in a region of the handle unit 14f. The solid body 16f is completely subsequently compacted in a region of the handle unit 14f. The foamed material of the solid body 16f is compacted in a region of the handle unit 14f after the solid body 16f has been manufactured.

[0150] The hygiene agent 10f is manufactured using a process. In this process, the bulk body 16f is produced using a particle foam process (see [reference]). Fig. 6A ). Subsequently, the solid body 16f is compacted at least section by section after a shaping process. In a first compaction step, the solid body 16f is compacted at least section by section in an area of ​​the application unit 12f after a shaping process (see Fig. 6B Depending on the desired shape, the product may already be finished in this state. In a possible second compaction step, the solid body 16f is compacted at least section by section in an area of ​​the handle unit 14f after a shaping process (see Figure 1). Fig. 6CCompaction takes place after foaming. During compaction, the solid body 16f is deformed under pressure and heat using a punch, the surface of which already incorporates at least part of a final geometry. Compaction occurs in two steps. In the first step, the solid body 16f is placed in a negative mold. Then, in the second step, a punch is applied to the solid body 16f and presses it into position. The solid body 16f is thereby compressed. Here, the compaction is shown as taking place in two steps, one in an area of ​​the application unit 12f and the other in an area of ​​the handle unit 14f. Simultaneously, the solid body 16f is further shaped. Together with the head compaction, bristle holes are formed in the application unit 12f.This can be done, for example, using a heated punch with a bristle hole punch. The bristle bundles 34f are then punched. Preferably, the bristle bundles 34f are folded and secured in a blind hole by means of at least one anchor, particularly by punching. Loop punching is also conceivable.

[0151] The Figure 7C Figure 1 shows a 10g hygiene product in a schematic side view. In this case, the 10g hygiene product is shaped like a toothbrush.

[0152] The hygiene product (10g) has at least one application unit (12g). This application unit (12g) has a head section (46g). The head section (46g) forms a brush head for the hygiene product (10g). In this case, the head section (46g) is designed as a toothbrush head. The head section (46g) has, in particular, a base body designed as a bristle carrier. The base body of the head section (46g) is formed entirely from a hard component. However, it would also be conceivable that the base body of the head section (46g) is formed from a hard component and a soft component. The base body of the head section (46g) forms a bristle carrier. The hygiene product (10g) also has a bristle plate (30g) attached to the head section (46g), which comprises a plurality of bristle bundles. The bristle plate (30g) is, for example, formed by an AFT plate. On a front side 36g of the head area 46g, a recess 32g is formed.The recess 32g is designed to hold the bristle plate 30g. The bristle plate 30g is inserted into the recess 32g of the application unit 12g.

[0153] Furthermore, the hygiene product contains at least one 14g handle unit (10g).

[0154] The hygiene product 10g further comprises a bulk body 16g. The bulk body 16g consists at least partially of a foamed material. The bulk body 16g consists entirely of a foamed material. The bulk body 16g forms the application unit 12g and the handle unit 14g. The application unit 12g is formed by the bulk body 16g. The handle unit 14g is formed by the bulk body 16g. The bulk body 16g has, by way of example, a circular cylindrical shape, with a central axis extending along a longitudinal axis 38g of the hygiene product 10g. However, other shapes that would appear sensible to a person skilled in the art are also conceivable.

[0155] The 16g solid is subsequently compacted, at least partially, in a region of the 12g application unit. The 16g solid is completely subsequently compacted in a region of the 12g application unit. A foamed material of the 16g solid is compacted after the 16g solid has been manufactured. During compaction, the density of the 16g solid is increased section by section. The 16g solid is compressed, in particular, to a standard size of the 12g application unit. Furthermore, the 16g solid is subsequently compacted, at least partially, in a region of the 14g handle unit. The 16g solid is completely subsequently compacted in a region of the 14g handle unit. The foamed material of the 16g solid is compacted in a region of the 14g handle unit after the 16g solid has been manufactured.

[0156] The 10g hygiene product is manufactured using a process. In this process, the 16g volume body with the 32g recess is produced using a particle foaming process (see [reference]). Fig. 7A The 16g volume body is then compacted after at least one shaping process. In a compaction step, the 16g volume body is compacted in an area of ​​the 12g application unit and the 14g handle unit after a shaping process (see [reference]). Fig. 7B The compaction process takes place in two steps. In the first step, the 16g solid is placed in a negative mold. Then, in the second step, a punch is applied to the 16g solid, pressing it into position. The 16g solid is thus compressed. Finally, the 30g bristle plate is inserted into the 32g recess and, for example, welded in place.

[0157] The Figure 8Figure 36h shows a schematic perspective view of the front of a hygiene product 10h. In this case, the hygiene product 10h is designed as an interdental brush.

[0158] The hygiene product 10h has at least one application unit of 12h. Furthermore, the hygiene product 10h has at least one handle unit of 14h.

[0159] The at least one application unit 12h has a head section 46h. The head section 46h forms an interdental brush head of the hygiene product 10h. The head section 46h has, in particular, a base body designed as a bristle carrier.

[0160] The hygiene product 10h also has a volumetric body 16h. The volumetric body 16h consists at least partially of a foamed material. The volumetric body 16h consists entirely of a foamed material.

[0161] The solid body 16h forms at least part of the application unit 12h and / or the handle unit 14h. The solid body 16h forms the handle unit 14h completely. The solid body 16h has, by way of example, a teardrop-shaped basic form, with a central axis extending along a longitudinal axis 38h of the hygiene agent 10h. Furthermore, the solid body 16h has finger indentations. However, other shapes that would appear sensible to a person skilled in the art are also conceivable.

[0162] Furthermore, the hygiene product 10h has a base body 18h connected to the volume body 16h. The base body 18h consists at least partially of a hard component and / or a metal. The base body 18h forms at least partially the application unit 12h. The base body 18h forms the base body of the head region 46h of the application unit 12h.

[0163] Solid body 16h is integrally formed with base body 18h. Base body 18h and solid body 16h form a positive fit. Base body 18h partially engages with solid body 16h.

[0164] The Figure 9 Figure 36i shows a front view of a hygiene product 10i in a schematic perspective view. In this case, the hygiene product 10i is designed as an electric toothbrush.

[0165] The hygiene product 10i has at least one application unit 12i. Furthermore, the hygiene product 10i has at least one handle unit 14i. The handle unit 14i is formed by an electric brush handpiece.

[0166] At least one application unit 12i is formed by a brush attachment. The application unit 12i is located on the top of the hygiene product 10i. The application unit 12i forms the uppermost point of the hygiene product 10i.

[0167] The hygiene product 10i further comprises a solid body 16i. The solid body 16i consists at least partially of a foamed material. The solid body 16i consists entirely of a foamed material. The solid body 16i forms at least partially the application unit 12i and / or the handle unit 14i. The solid body 16i partially forms the handle unit 14i. The solid body 16i forms an outer shell of a handle area of ​​the handle unit 14i. The solid body 16i has, by way of example, a circular cylindrical shape, with a central axis extending along a longitudinal axis 38i of the hygiene product 10i. The solid body 16i is hollow cylindrical. However, other shapes that would appear sensible to a person skilled in the art are also conceivable.

[0168] Furthermore, the hygiene agent 10i has a base body 18i connected to the volume body 16i. The base body 18i consists at least partially of a hard component. The base body 18i forms at least partially the application unit 12i and / or the handle unit 14i. The base body 18i partially forms the handle unit 14i. The base body 18i forms a housing for the handle unit 14i. The base body 18i has an at least approximately cylindrical shape. The base body 18i forms a cylindrical housing for the handle unit 14i. The housing serves to accommodate a drive and an energy storage device for the handle unit 14i. The base body 18i extends along the longitudinal axis 38i along the entire length of the handle unit 14i. The base body 18i consists at least partially of a soft component. The soft component preferably forms the housing section 76i in the area of ​​the on / off switch.

[0169] The solid body 16i is integrally formed with the base body 18i. The solid body 16i is produced directly on the base body 18i using a foaming process. The base body 18i is produced using an injection molding process, whereby the base body 18i is overmolded with the solid body 16i. The solid body 16i at least partially encloses the base body 18i. The solid body 16i encloses the base body 18i in a region of the handle unit 14i. The solid body 16i completely encloses the base body 18i in at least one plane perpendicular to the longitudinal axis 38i. The solid body 16i forms a ring. The base body 18i and the solid body 16i form a positive fit.

[0170] The Figure 10 Figure 36j shows a front view of a hygiene product 10j in a schematic perspective view. In this case, the hygiene product 10j is designed as an electric toothbrush.

[0171] The hygiene product 10j has at least one application unit 12j. Furthermore, the hygiene product 10j has at least one handle unit 14j. The handle unit 14j is formed by an electric brush handpiece.

[0172] At least one application unit 12j is formed by a brush attachment. The application unit 12j is located on the top of the hygiene product 10j. The application unit 12j forms the uppermost point of the hygiene product 10j.

[0173] The hygiene product 10j further comprises a volumetric body 16j. The volumetric body 16j consists at least partially of a foamed material. The volumetric body 16j consists entirely of a foamed material. The volumetric body 16j forms at least partially the application unit 12j and / or the handle unit 14j. The volumetric body 16j partially forms the handle unit 14j. The volumetric body 16j forms an outer shell of a handle area of ​​the handle unit 14j. The volumetric body 16j is formed by several spaced-apart islands. The islands have an oval shape by way of example. However, another shape for the islands that would appear sensible to a person skilled in the art would also be conceivable.

[0174] Furthermore, the hygiene agent 10j has a base body 18j connected to the volume body 16j. The base body 18j consists at least partially of a hard component. The base body 18j forms at least partially the application unit 12j and / or the handle unit 14j. The base body 18j partially forms the handle unit 14j. The base body 18j forms a housing for the handle unit 14j. The base body 18j has an at least approximately cylindrical shape. The base body 18j forms a cylindrical housing for the handle unit 14j. The housing serves to accommodate a drive and an energy storage device for the handle unit 14j. The base body 18j extends along the longitudinal axis 38j along the entire length of the handle unit 14j. The base body 18j consists at least partially of a soft component. The soft component preferably forms the housing section 76j in the area of ​​the on / off switch.

[0175] The solid body 16j is integrally formed with the base body 18j. The solid body 16j is produced directly on the base body 18j using a foaming process. The base body 18j is produced using an injection molding process, whereby the solid body 16j is foamed onto the base body 18j. The base body 18j and the solid body 16j form a positive fit.

[0176] The Figure 11A Figure 10k shows a hygiene product in a schematic side view. In this case, the hygiene product 10k is designed as a mascara.

[0177] The hygiene product 10k comprises at least one application unit 12k. Furthermore, the hygiene product 10k comprises at least one handle unit 14k. The hygiene product 10k also comprises a tank 62k. The tank 62k serves to store a mascara liquid. Furthermore, the tank 62k serves, in particular, to store the application unit 12k and to hold a fluid. Preferably, the handle unit 14k can be connected to the tank 62k via a screw cap or a plug-in cap, with the application unit 12k being contained within the tank 62k in a connected state.

[0178] The at least one application unit 12k has a head section 46k. The head section 46k forms a mascara brush head for the hygiene product 10k. The head section 46k particularly has a base body designed as a bristle carrier. The head section 46k is preferably at least partially formed by a twisted brush.

[0179] The hygiene product 10k further comprises a solid body 16k. The solid body 16k consists at least partially of a foamed material. The solid body 16k consists entirely of a foamed material. The solid body 16k forms at least partially the application unit 12k and / or the handle unit 14k. The solid body 16k forms the handle unit 14k entirely. The solid body 16k has, by way of example, a cylindrical basic shape in one area of ​​the handle unit 14k, with a central axis extending along a longitudinal axis 38k of the hygiene product 10k. However, other shapes that would appear sensible to a person skilled in the art are also conceivable.

[0180] Furthermore, the solid body 16k completely forms the handle unit 14k. The solid body 16k has, by way of example, a hollow cylindrical shape in one area of ​​the tank 62k, with a central axis extending along the longitudinal axis 38k of the hygiene agent 10k. However, other shapes that would appear sensible to a person skilled in the art are also conceivable.

[0181] Furthermore, the hygiene agent 10k has a base body 18k connected to the volume body 16k. The base body 18k consists at least partially of a hard component or a metal. The base body 18k forms at least partially the application unit 12k. The base body 18k forms the base body of the head region 46k of the application unit 12k. Furthermore, the base body 18k forms an inner part of the tank 62k.

[0182] The solid body 16k is molded onto the base body 18k. The base body 18k and the solid body 16k form a positive fit. The base body 18k partially engages with the solid body 16k. The base body 18k is overmolded by the solid body 16k. The portion of the base body 18k forming the application unit 12k partially projects into the portion of the solid body 16k forming the grip unit 14k. Furthermore, the inner part of the tank 62k, which is formed by the base body 18k, is completely enclosed by the portion of the solid body 16k that forms the outer shell of the tank 62k.

[0183] Similar to a mascara, a container can be created for a cream. Essentially, the mascara applicator is removed. The handle unit serves as the lid of the container, which is attached to a reservoir. This reservoir corresponds to the tank, consisting of a base body manufactured using injection molding, which is then filled with a foamed-in-place foam.

[0184] The Figure 12 The figure shows a schematic perspective view of the reverse side of a 10-liter hygiene product container (44l). In this case, the 10-liter hygiene product is designed as a razor.

[0185] The 10-liter hygiene product has at least one 12-liter application unit. Furthermore, the 10-liter hygiene product has at least one 14-liter handle unit. The 14-liter handle unit has a 64-liter coupling area for a detachable connection with the 12-liter application unit. The at least one 12-liter application unit has a 46-liter head area. The 12-liter application unit is formed by a razor blade head.

[0186] The hygiene product 10l further comprises a volumetric body 16l. The volumetric body 16l consists at least partially of a foamed material. The volumetric body 16l consists entirely of a foamed material. The volumetric body 16l forms at least partially the application unit 12l and / or the handle unit 14l. The volumetric body 16l partially forms the handle unit 14l. The volumetric body 16l forms part of the outer casing of a handle area of ​​the handle unit 14l. The volumetric body 16l has, by way of example, a circular cylindrical basic shape, wherein a central axis extends at least approximately along a longitudinal axis 38l of the hygiene product 10l. However, other shapes that would appear sensible to a person skilled in the art are also conceivable.

[0187] Furthermore, the 10-liter hygiene product has a base body 18 liters connected to the 16-liter volume body. The base body 18 liters consists at least partially of a hard component. The base body 18 liters has a shell-like structure. The base body 18 liters has a recess against which part of the 16-liter volume body rests.

[0188] The base body 18l forms at least part of the application unit 12l and / or the handle unit 14l. The base body 18l forms the application unit 12l. The base body 18l partially forms the handle unit 14l. The base body 18l forms a core of the handle unit 14l. The base body 18l has an approximately U-shaped cross-section in one area of ​​the handle unit 14l. Furthermore, the base body 18l forms the coupling area 64l.

[0189] The 16l volume component is integrally formed with the 18l base component. The 16l volume component is manufactured directly onto the 18l base component using a foaming process. The 18l base component is manufactured using an injection molding process, whereby the 18l base component is overmolded with the 16l volume component. The 16l volume component at least partially encloses the 18l base component. The 16l volume component encloses the 18l base component in a region of the 14l handle unit.

[0190] The Figure 13A Figure 10m shows a hygiene product in a schematic perspective view. In this case, the hygiene product is designed as a dental floss box.

[0191] The hygiene product 10m has at least one application unit 12m. The application unit 12m consists of a blade for cutting the dental floss. Furthermore, the hygiene product 10m has at least one handle unit 14m. The handle unit 14m consists of a box base for holding a roll of dental floss. The application unit 12m is firmly held within the handle unit 14m. The application unit 12m is made, for example, of metal, in particular sheet metal. The application unit 12m can be mounted within the handle unit 14m or can be encased in foam as an insert.

[0192] The hygiene product 10m further comprises a volumetric body 16m. The volumetric body 16m consists at least partially of a foamed material. The volumetric body 16m consists entirely of a foamed material. The volumetric body 16m forms the handle unit 14m. The handle unit 14m is formed by the volumetric body 16m. The volumetric body 16m preferably forms two half-shells 66m and 68m and a lid 70m of the handle unit 14m. Furthermore, the volumetric body 16m forms a first hinge 72m, which connects the first half-shell 66m to the second half-shell 68m. The volumetric body 16m also forms a second hinge 74m, which connects the second half-shell 68m to the lid 70m. The hinges 72m and 74m are each formed by a film hinge.

[0193] In both the first and second half-shells (66m and 68m), a protruding element is formed in the later inner section. A hollow cylinder is molded into the first half-shell (66m), serving two functions. First, a spool of dental floss (a coil with dental floss on it) is placed on it, so that it acts as a pivot point. Second, it accommodates the protruding cylinder of the second half-shell (68m). The two half-shells (66m and 68m) are folded together, and the cylinder is inserted into the hollow cylinder. This secures the two half-shells (66m and 68m) to each other.

[0194] The 16m volume is subsequently compacted in sections within the 14m handle unit. The 16m volume is compacted within the hinges 72m and 74m. The foamed material of the 16m volume is compacted within the hinges 72m and 74m of the 14m handle unit after the 16m volume has been manufactured, in order to form the hinges 72m and 74m as film hinges.

[0195] Alternatively, a dental floss box could be manufactured using injection molding, as is currently the case, and contain individual parts made of foamed material. The shape could be similar to that of an electric toothbrush housing. Figure 10 Individual islands made of foamed material will be created to improve the ergonomics of the product.

[0196] The Figure 14Figure 10n shows a hygiene product in a schematic perspective view. In this case, the hygiene product 10n is designed as a hand broom.

[0197] The hygiene product 10n has at least one application unit 12n. Furthermore, the hygiene product 10n has at least one handle unit 14n.

[0198] The at least one application unit 12n has a head region 46n. The head region 46n has, in particular, a base body designed as a bristle carrier, to which bristle bundles 34n are attached.

[0199] The hygiene product 10n further comprises a volumetric body 16n. The volumetric body 16n consists at least partially of a foamed material. The volumetric body 16n consists entirely of a foamed material. The volumetric body 16n forms at least partially the application unit 12n and / or the handle unit 14n. The volumetric body 16n forms the handle unit 14n entirely. The volumetric body 16n has, by way of example, an elongated basic shape, with a central axis extending along a longitudinal axis 38n of the hygiene product 10n.

[0200] Furthermore, the hygiene agent 10n has a base body 18n connected to the volume body 16n. The base body 18n consists at least partially of a hard component. The base body 18n forms at least partially the application unit 12n. The base body 18n forms the base body of the head region 46n of the application unit 12n.

[0201] Solid body 16n is integrally formed with base body 18n. Base body 18n and solid body 16n form a positive fit. Base body 18n partially engages with solid body 16n.

[0202] The descriptions given for specific characters can of course also be applied to other characters that show the same or similar characteristics, even if these characteristics are not described in the same level of detail. Reference sign

[0203] 10 Hygiene agent 12 Application unit 14 Handle unit 16 Volume body 18 Base body 20 Positive locking element 22 Positive locking element 24 Positive locking element 26 Cage element 28 Enclosure body 30 Bristle plate 32 Recess 34 Bristle bundle 36 Front 38 Longitudinal axis 40 Vertical axis 42 Main extension direction 44 Back 46 Head area 48 Neck area 50 Thumb rest 52 Sub-body 54 Recess 56 Sub-base body 58 Longitudinal web 60 Transverse web 62 Tank 64 Coupling area 66 Half-shell 68 Half-shell 70 Cover 72 Hinge 74 Hinge 76 Housing section

Claims

1. Hygiene product, in particular oral hygiene product, with at least one application unit (12a; 12b; 12c; 12d; 12e; 12h; 12i; 12j; 12k; 12l; 12n), with at least one handle unit (14a; 14b; 14c; 14d; 14e; 14h; 14i; 14j; 14k; 14l; 14n) that is connected to the application unit (12a; 12b; 12c; 12d; 12e; 12h; 12i; 12j; 12k; 12l; 12n), with at least one volume body (16a; 16b; 16c; 16d; 16e; 16h; 16i; 16j; 16k; 16l; 16n) which at least partially forms the application unit (12a; 12b; 12c; 12d; 12e; 12h; 12i; 12j; 12k; 12l; 12n) and / or the handle unit (14a; 14b; 14c; 14d; 14e; 14h; 14i; 14j; 14k; 14l; 14n) and which is made at least partially of a foamed material, and with at least one base body (18a; 18b; 18c; 18d; 18e; 18h; 18i; 18j; 18k; 18l; 18n), which is connected to the volume body (16a; 16b; 16c; 16d; 16e; 16h; 16i; 16j; 16k; 16l; 16n) and which at least partially forms the application unit (12a; 12b; 12c; 12d; 12e; 12h; 12i; 12j; 12k; 12l; 12n) and / or the handle unit (14a; 14b; 14c; 14d; 14e; 14h; 14i; 14j; 14k; 14l; 14n), and wherein the at least one volume body (16a; 16b; 16c; 16d; 16e; 16h; 16i; 16j; 16k; 16l; 16n) is moulded onto the at least one base body (18a; 18b; 18c; 18d; 18e; 18h; 18i; 18j; 18k; 18l; 18n), characterized in that the foamed material consists of a particle foam that is implemented from expanded components.

2. Hygiene product according to claim 1, characterized in that the at least one volume body (16a; 16b; 16c; 16e; 16h; 16i; 16k; 16l; 16n) encloses the at least one base body (18a; 18b; 18c; 18e; 18h; 18i; 18k; 18l; 18n) at least partially.

3. Hygiene product according to claim 1 or 2, characterized in that the at least one base body (18a; 18b; 18c; 18e) comprises at least one form-fit element (20a, 22a, 24a; 20b, 22b, 24b; 20c; 20e, 22e, 24e), which forms a form fit connection with the at least one volume body (16a; 16b; 16c; 16e).

4. Hygiene product according to any one of the preceding claims, characterized in that the handle unit (14d) comprises at least one cage element (26d), which engages around the at least one volume body (16d) at least partially.

5. Hygiene product according to claim 4, characterized in that the at least one cage element (26d) is directly and fixedly connected with the at least one base body (18d).

6. Hygiene product according to any one of the preceding claims, characterized by at least one enveloping body (28b; 28e), which encloses the at least one volume body (16b; 16e) at least partially and which is connected to the at least one volume body (16b; 16e) in a force-fit manner and / or by substance-to-substance bond.

7. Hygiene product according to claim 6, characterized in that the at least one enveloping body (28b; 28e) is implemented at least partially of a soft component.

8. Hygiene product according to any one of the preceding claims, characterized in that the at least one base body (18a; 18b; 18c; 18d; 18e; 18h; 18i; 18j; 18k; 18l; 18n) is implemented at least partially of a hard component.

9. Hygiene product according to any one of the preceding claims, characterized by at least one enveloping body (28c), which penetrates the at least one volume body (16c) at least partially and which is connected with the at least one volume body (16c) in a force-fit manner and / or by substance-to-substance bond.

10. Hygiene product according to any one of the preceding claims, characterized in that the application unit (12f; 12g) is implemented at least partially by the volume body (16f; 16g), which is in a region of the application unit (12f; 12g) densified at least section-wise, in particular subsequently.

11. Hygiene product according to claim 10, characterized in that the handle unit (14f; 14g; 14m) is implemented at least partially by the volume body (16f; 16g; 16m), which is in a region of the handle unit (14f; 14g; 14m) densified at least section-wise, in particular subsequently.

12. Hygiene product according to any one of the preceding claims, characterized by at least one bristle platelet (30g), which is inserted in a recess (32g) of the application unit (12g).

13. Hygiene product at least according to claim 10 or 11, characterized by a bristle bundle (34f), which is connected with the application unit (12f) by punching.

14. Method for a production of a hygiene product (10a; 10b; 10c; 10d; 10e; 10f; 10g; 10h; 10i; 10j; 10k; 10l; 10m; 10n) according to any one of the preceding claims, characterized in that in at least one method step the volume body (16a; 16b; 16c; 16d; 16e; 16h; 16i; 16j; 16k; 16l; 16n) is moulded to the base body (18a; 18b; 18c; 18d; 18e; 18h; 18i; 18j; 18k; 18l; 18n) directly by means of a particle-foam method.

15. Method at least according to claim 14, characterized in that in at least one method step the at least one enveloping body (28b; 28c; 28d) and / or the at least one base body (18b; 18c; 18d) are / is moulded onto the volume body (16b; 16c) by means of an injection-moulding process.

16. Method according to any one of claims 14 to 15, characterized in that the volume body (16f; 16g; 16m) is at least section-wise densified after a shaping process.

17. Method according to any one of claims 14 to 16, characterized in that in a region of the application unit (12f; 12g), the volume body (16f; 16g) is at least section-wise densified after a shaping process.